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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.624 by root, Sat Nov 17 23:40:02 2018 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2018 Marc Alexander Lehmann / the Deliantra team
		5	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		6	#
		7	# Deliantra is free software: you can redistribute it and/or modify it under
		8	# the terms of the Affero GNU General Public License as published by the
		9	# Free Software Foundation, either version 3 of the License, or (at your
		10	# option) any later version.
		11	#
		12	# This program is distributed in the hope that it will be useful,
		13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	# GNU General Public License for more details.
		16	#
		17	# You should have received a copy of the Affero GNU General Public License
		18	# and the GNU General Public License along with this program. If not, see
		19	# <http://www.gnu.org/licenses/>.
		20	#
		21	# The authors can be reached via e-mail to <support@deliantra.net>
		22	#
		23
1	package cf;	24	package cf;
2		25
3	use utf8;	26	use common::sense;
4	use strict;
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
12		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
13	use Coro 3.5 ();	42	use Coro ();
		43	use Coro::State;
		44	use Coro::Handle;
		45	use Coro::EV;
14	use Coro::Event;	46	use Coro::AnyEvent;
15	use Coro::Timer;	47	use Coro::Timer;
16	use Coro::Signal;	48	use Coro::Signal;
17	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
18	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
		54	use Coro::Storable;
		55	use Coro::Util ();
19		56
		57	use Guard ();
		58	use JSON::XS 2.01 ();
20	use BDB ();	59	use BDB ();
21	use Data::Dumper;	60	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	61	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	62	use YAML::XS ();
26	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
		65	use Compress::LZF;
		66	use Digest::MD5 ();
27		67
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	68	AnyEvent::detect;
		69
		70	# configure various modules to our taste
		71	#
		72	$Storable::canonical = 1; # reduce rsync transfers
		73	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		74
		75	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		76
		77	# make sure c-lzf reinitialises itself
		78	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		79	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		80
		81	# strictly for debugging
		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29		83
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		85
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	86	our @ORIG_INC;
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		87
37	our %COMMAND = ();	88	our %COMMAND = ();
38	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
39		90
40	our @EXTS = (); # list of extension package names	91	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
44		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	100	our @EVENT;
46	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
47		103
48	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	105
50	our $AIO_POLL_WATCHER;	106	our $DATADIR = datadir;
51	our $WRITE_RUNTIME_WATCHER;	107	our $LIBDIR = "$DATADIR/ext";
		108	our $PODDIR = "$DATADIR/pod";
		109	our $MAPDIR = "$DATADIR/" . mapdir;
		110
		111	our $LOCALDIR = localdir;
		112	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		113	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		114	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		115	our $RANDOMDIR = "$LOCALDIR/random";
		116	our $BDBDIR = "$LOCALDIR/db";
		117	our $PIDFILE = "$LOCALDIR/pid";
		118	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		119
		120	#our %RESOURCE; # unused
		121
		122	our $OUTPUT_RATE_MIN = 3000;
		123	our $OUTPUT_RATE_MAX = 1000000;
		124
		125	our $MAX_LINKS = 32; # how many chained exits to follow
		126	our $VERBOSE_IO = 1;
		127
		128	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	130	our $NEXT_TICK;
		131	our $USE_FSYNC = 1; # use fsync to write maps - default on
		132
		133	our $BDB_DEADLOCK_WATCHER;
		134	our $BDB_CHECKPOINT_WATCHER;
		135	our $BDB_TRICKLE_WATCHER;
		136	our $DB_ENV;
		137
		138	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		139
		140	our %CFG;
		141	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		142
		143	our $UPTIME; $UPTIME ||= time;
		144	our $RUNTIME = 0;
		145	our $SERVER_TICK = 0;
53	our $NOW;	146	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		147
56	our $BDB_POLL_WATCHER;	148	our (%PLAYER, %PLAYER_LOADING); # all users
57	our $DB_ENV;	149	our (%MAP, %MAP_LOADING ); # all maps
58
59	our %CFG;
60
61	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;
63
64	our %PLAYER; # all users
65	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	150	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		151
73	# used to convert map paths into valid unix filenames by replacing / by ∕	152	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		154
		155	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		156	our $LOADAVG; # same thing, but with alpha-smoothing
		157	our $JITTER; # average jitter
		158	our $TICK_START; # for load detecting purposes
		159
		160	our @POST_INIT;
		161
		162	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		163	our $REALLY_UNLOOP; # never set to true, please :)
		164
		165	our $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
		167
76	binmode STDOUT;	168	binmode STDOUT;
77	binmode STDERR;	169	binmode STDERR;
78		170
79	# read virtual server time, if available	171	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
84	}	176	}
85		177
86	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	179
88	mkdir cf::localdir . "/" . cf::tmpdir;	180	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		182
93	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
94		184
95	sub cf::map::normalise;	185	sub cf::map::normalise;
96		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
97	#############################################################################	191	#############################################################################
98		192
		193	%REFLECT = ();
		194	for (@REFLECT) {
		195	my $reflect = JSON::XS::decode_json $_;
		196	$REFLECT{$reflect->{class}} = $reflect;
		197	}
		198
		199	# this is decidedly evil
		200	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		201
		202	#############################################################################
		203
99	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
100		205
101	=over 4	206	=over 4
102		207
103	=item $cf::UPTIME	208	=item $cf::UPTIME
104		209
105	The timestamp of the server start (so not actually an uptime).	210	The timestamp of the server start (so not actually an "uptime").
		211
		212	=item $cf::SERVER_TICK
		213
		214	An unsigned integer that starts at zero when the server is started and is
		215	incremented on every tick.
		216
		217	=item $cf::NOW
		218
		219	The (real) time of the last (current) server tick - updated before and
		220	after tick processing, so this is useful only as a rough "what time is it
		221	now" estimate.
		222
		223	=item $cf::TICK
		224
		225	The interval between each server tick, in seconds.
106		226
107	=item $cf::RUNTIME	227	=item $cf::RUNTIME
108		228
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	229	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	230	every server tick.
111		231
112	=item $cf::LIBDIR	232	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		233	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		234	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		235
114	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	237	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		238	unique-items directory, player file directory, random maps directory and
		239	database environment.
116		240
		241	=item $cf::LOADAVG
		242
		243	The current CPU load on the server (alpha-smoothed), as a value between 0
		244	(none) and 1 (overloaded), indicating how much time is spent on processing
		245	objects per tick. Healthy values are < 0.5.
		246
117	=item $cf::NOW	247	=item $cf::LOAD
118		248
119	The time of the last (current) server tick.	249	The raw value load value from the last tick.
120
121	=item $cf::TICK
122
123	The interval between server ticks, in seconds.
124		250
125	=item %cf::CFG	251	=item %cf::CFG
126		252
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	254	from wherever your confdir points to.
129		255
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		257
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	258	These are functions that inhibit the current coroutine one tick.
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	259	cf::wait_for_tick_begin only returns directly I<after> the tick
134	processing has been done. Call C<< ->wait >> on them to maximise the	260	processing (and consequently, can only wake one thread per tick), while
135	window of cpu time available, or simply to synchronise to the server tick.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$cf::WAIT_FOR_TICK>).
		267
		268	=item $cf::WAIT_FOR_TICK
		269
		270	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		271	variable contains a L<Coro::Signal> that is broadcats after every server
		272	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		273	next server tick.
		274
		275	=cut
		276
		277	sub wait_for_tick();
		278	sub wait_for_tick_begin();
		279
		280	=item @cf::INVOKE_RESULTS
		281
		282	This array contains the results of the last C<invoke ()> call. When
		283	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		284	that call.
		285
		286	=item %cf::REFLECT
		287
		288	Contains, for each (C++) class name, a hash reference with information
		289	about object members (methods, scalars, arrays and flags) and other
		290	metadata, which is useful for introspection.
136		291
137	=back	292	=back
138		293
139	=cut	294	=cut
140		295
141	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
142	*CORE::GLOBAL::warn = sub {	297	sub warn (@) { LOG llevWarn , join "", @_ }
		298	sub info (@) { LOG llevInfo , join "", @_ }
		299	sub debug(@) { LOG llevDebug, join "", @_ }
		300	sub trace(@) { LOG llevTrace, join "", @_ }
		301
		302	$Coro::State::WARNHOOK = sub {
143	my $msg = join "", @_;	303	my $msg = join "", @_;
144	utf8::encode $msg;
145		304
146	$msg .= "\n"	305	$msg .= "\n"
147	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
148		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
149	LOG llevError, $msg;	310	LOG llevWarn, $msg;
150	};	311	};
151	}	312
		313	$Coro::State::DIEHOOK = sub {
		314	return unless $^S eq 0; # "eq", not "=="
		315
		316	error Carp::longmess $_[0];
		317
		318	if (in_main) {#d#
		319	error "DIEHOOK called in main context, Coro bug?\n";#d#
		320	return;#d#
		321	}#d#
		322
		323	# kill coroutine otherwise
		324	Coro::terminate
		325	};
152		326
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	331	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		332	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	333	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		334
160	# we bless all objects into (empty) derived classes to force a method lookup	335	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	336	# within the Safe compartment.
162	for my $pkg (qw(	337	for my $pkg (qw(
163	cf::global cf::attachable	338	cf::global cf::attachable
164	cf::object cf::object::player	339	cf::object cf::object::player
165	cf::client cf::player	340	cf::client cf::player
166	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
167	cf::map cf::party cf::region	343	cf::party cf::region
168	)) {	344	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	346	}
172		347
173	$Event::DIED = sub {	348	$EV::DIED = sub {
174	warn "error in event callback: @_";	349	warn "error in event callback: $@";
175	};	350	};
		351
		352	#############################################################################
		353
		354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
176		358
177	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
178		360
179	=over 4	361	=over 4
180		362
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	382	$d
201	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
202	}	384	}
203		385
204	use JSON::Syck (); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
205		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($path, $data, $sync) = @_;
		409
		410	my $lock = cf::lock_acquire ("replace_file:$path");
		411
		412	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		413	or return;
		414
		415	$data = $data->() if ref $data;
		416
		417	length $data == aio_write $fh, 0, (length $data), $data, 0
		418	or return;
		419
		420	!$sync
		421	or !aio_fsync $fh
		422	or return;
		423
		424	aio_close $fh
		425	and return;
		426
		427	aio_rename "$path~", $path
		428	and return;
		429
		430	if ($sync) {
		431	$path =~ s%/[^/]*$%%;
		432	aio_pathsync $path;
		433	}
		434
		435	1
		436	}
		437
206	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
207		439
208	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
209		441
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
218		443
219	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
220		445
221	=cut	446	=cut
222		447
223	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
225	JSON::Syck::Dump $_[0]	450	sub encode_json($) { $json_coder->encode ($_[0]) }
		451	sub decode_json($) { $json_coder->decode ($_[0]) }
		452
		453	=item $ref = cf::decode_storable $scalar
		454
		455	Same as Coro::Storable::thaw, so blocks.
		456
		457	=cut
		458
		459	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		460
		461	=item $ref = cf::decode_yaml $scalar
		462
		463	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		464
		465	=cut
		466
		467	sub decode_yaml($) {
		468	fork_call { YAML::XS::Load $_[0] } @_
		469	}
		470
		471	=item $scalar = cf::decode_cbor $scalar
		472
		473	Same as CBOR::XS::decode_cbor, but takes server ticks into account, so
		474	blocks. For small amounts of data, C<CBOR::XS::decode_cbor> is the better
		475	alternative.
		476
		477	=cut
		478
		479	sub decode_cbor($) {
		480	# we assume 10mb/s minimum decoding speed (on a ~2ghz machine)
		481	cf::get_slot +(length $_[0]) / 10_000_000, 0, "decode_cbor";
		482	CBOR::XS::decode_cbor $_[0]
		483	}
		484
		485	=item $scalar = cf::unlzf $scalar
		486
		487	Same as Compress::LZF::compress, but takes server ticks into account, so
		488	blocks.
		489
		490	=cut
		491
		492	sub unlzf($) {
		493	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		494	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		495	Compress::LZF::decompress $_[0]
		496	}
		497
		498	=item cf::post_init { BLOCK }
		499
		500	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		501	but I<before> the server starts ticking again.
		502
		503	The codeblock will have a single boolean argument to indicate whether this
		504	is a reload or not.
		505
		506	=cut
		507
		508	sub post_init(&) {
		509	push @POST_INIT, shift;
		510	}
		511
		512	sub _post_init {
		513	trace "running post_init jobs";
		514
		515	# run them in parallel...
		516
		517	my @join;
		518
		519	while () {
		520	push @join, map &Coro::async ($_, 0), @POST_INIT;
		521	@POST_INIT = ();
		522
		523	@join or last;
		524
		525	(pop @join)->join;
		526	}
226	}	527	}
227		528
228	=item cf::lock_wait $string	529	=item cf::lock_wait $string
229		530
230	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
231		532
232	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
233		534
234	Wait until the given lock is available and then acquires it and returns	535	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	536	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
237	returned.	538	returned.
238		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
239	Lock names should begin with a unique identifier (for example, cf::map::find	543	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
241		545
242	=cut	546	=item $locked = cf::lock_active $string
243		547
244	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
245		553
246	sub lock_wait($) {	554	sub lock_wait($) {
247	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	556	}
255		557
256	sub lock_acquire($) {	558	sub lock_acquire($) {
257	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
258		561
259	# wait, to be sure we are not locked	562	sub lock_active($) {
260	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	564	}
269		565
270	sub freeze_mainloop {	566	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
272		568
273	my $guard = Coro::guard {	569	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	570	}
275	$WRITE_RUNTIME_WATCHER->start;	571
		572	=item cf::periodic $interval, $cb
		573
		574	Like EV::periodic, but randomly selects a starting point so that the actions
		575	get spread over time.
		576
		577	=cut
		578
		579	sub periodic($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
276	};	639	}
277	$WRITE_RUNTIME_WATCHER->stop;	640	};
278	$TICK_WATCHER->stop;	641
279	$guard	642	sub get_slot($;$$) {
		643	return if tick_inhibit || $Coro::current == $Coro::main;
		644
		645	my ($time, $pri, $name) = @_;
		646
		647	$time = clamp $time, 0.01, $TICK * .6;
		648
		649	my $sig = new Coro::Signal;
		650
		651	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		652	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		653	$SLOT_QUEUE->ready;
		654	$sig->wait;
280	}	655	}
281		656
282	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
283		658
284	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		664
290	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
291		666
292	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
293		668
294	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
297		673
298	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
301	fast or be very important.	677	fast or be very important.
…		…
303	=cut	679	=cut
304		680
305	sub sync_job(&) {	681	sub sync_job(&) {
306	my ($job) = @_;	682	my ($job) = @_;
307		683
308	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
309	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
311		689
312	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	691
314	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
315		693
316	my $busy = 1;	694	my $busy = 1;
317	my @res;	695	my @res;
318		696
319	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	699	@res = eval { $job->() };
321	warn $@ if $@;	700	error $@ if $@;
322	undef $busy;	701	undef $busy;
323	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
324		703
325	while ($busy) {	704	while ($busy) {
326	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
327	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
328		715
329	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
330	} else {	717	} else {
331	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
332		719
…		…
352	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
353		740
354	$coro	741	$coro
355	}	742	}
356		743
357	sub write_runtime {	744	=item fork_call { }, @args
358	my $runtime = cf::localdir . "/runtime";
359		745
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	746	Executes the given code block with the given arguments in a seperate
361	or return;	747	process, returning the results. Everything must be serialisable with
		748	Coro::Storable. May, of course, block. Note that the executed sub may
		749	never block itself or use any form of event handling.
362		750
363	my $value = $cf::RUNTIME + 90 + 10;	751	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		752
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	753	sub post_fork {
368	and return;	754	reset_signals;
		755	}
369		756
370	# always fsync - this file is important	757	sub fork_call(&@) {
371	aio_fsync $fh	758	my ($cb, @args) = @_;
372	and return;
373		759
374	close $fh	760	my @res = Coro::Util::fork_eval {
375	or return;	761	cf::post_fork;
		762	&$cb
		763	} @args;
376		764
377	aio_rename "$runtime~", $runtime	765	wantarray ? @res : $res[-1]
378	and return;	766	}
379		767
		768	sub objinfo {
380	1	769	(
		770	"counter value" => cf::object::object_count,
		771	"objects created" => cf::object::create_count,
		772	"objects destroyed" => cf::object::destroy_count,
		773	"freelist size" => cf::object::free_count,
		774	"allocated objects" => cf::object::objects_size,
		775	"active objects" => cf::object::actives_size,
		776	)
		777	}
		778
		779	=item $coin = coin_from_name $name
		780
		781	=cut
		782
		783	our %coin_alias = (
		784	"silver" => "silvercoin",
		785	"silvercoin" => "silvercoin",
		786	"silvercoins" => "silvercoin",
		787	"gold" => "goldcoin",
		788	"goldcoin" => "goldcoin",
		789	"goldcoins" => "goldcoin",
		790	"platinum" => "platinacoin",
		791	"platinumcoin" => "platinacoin",
		792	"platinumcoins" => "platinacoin",
		793	"platina" => "platinacoin",
		794	"platinacoin" => "platinacoin",
		795	"platinacoins" => "platinacoin",
		796	"royalty" => "royalty",
		797	"royalties" => "royalty",
		798	);
		799
		800	sub coin_from_name($) {
		801	$coin_alias{$_[0]}
		802	? cf::arch::find $coin_alias{$_[0]}
		803	: undef
		804	}
		805
		806	=item $value = cf::db_get $family => $key
		807
		808	Returns a single value from the environment database.
		809
		810	=item cf::db_put $family => $key => $value
		811
		812	Stores the given C<$value> in the family. It can currently store binary
		813	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		814
		815	=item $db = cf::db_table "name"
		816
		817	Create and/or open a new database table. The string must not be "db" and must be unique
		818	within each server.
		819
		820	=cut
		821
		822	sub db_table($) {
		823	cf::error "db_get called from main context"
		824	if $Coro::current == $Coro::main;
		825
		826	my ($name) = @_;
		827	my $db = BDB::db_create $DB_ENV;
		828
		829	eval {
		830	$db->set_flags (BDB::CHKSUM);
		831
		832	utf8::encode $name;
		833	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		834	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		835	cf::cleanup "db_open(db): $!" if $!;
		836	};
		837	cf::cleanup "db_open(db): $@" if $@;
		838
		839	$db
		840	}
		841
		842	our $DB;
		843
		844	sub db_init {
		845	$DB ||= db_table "db";
		846	}
		847
		848	sub db_get($$) {
		849	my $key = "$_[0]/$_[1]";
		850
		851	cf::error "db_get called from main context"
		852	if $Coro::current == $Coro::main;
		853
		854	BDB::db_get $DB, undef, $key, my $data;
		855
		856	$! ? ()
		857	: $data
		858	}
		859
		860	sub db_put($$$) {
		861	BDB::dbreq_pri 4;
		862	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		863	}
		864
		865	=item cf::cache $id => [$paths...], $processversion => $process
		866
		867	Generic caching function that returns the value of the resource $id,
		868	caching and regenerating as required.
		869
		870	This function can block.
		871
		872	=cut
		873
		874	sub cache {
		875	my ($id, $src, $processversion, $process) = @_;
		876
		877	my $meta =
		878	join "\x00",
		879	$processversion,
		880	map {
		881	aio_stat $_
		882	and Carp::croak "$_: $!";
		883
		884	($_, (stat _)[7,9])
		885	} @$src;
		886
		887	my $dbmeta = db_get cache => "$id/meta";
		888	if ($dbmeta ne $meta) {
		889	# changed, we may need to process
		890
		891	my @data;
		892	my $md5;
		893
		894	for (0 .. $#$src) {
		895	$data[$_] = load_file $src->[$_];
		896	}
		897
		898	# if processing is expensive, check
		899	# checksum first
		900	if (1) {
		901	$md5 =
		902	join "\x00",
		903	$processversion,
		904	map {
		905	cf::cede_to_tick;
		906	($src->[$_], Digest::MD5::md5_hex $data[$_])
		907	} 0.. $#$src;
		908
		909
		910	my $dbmd5 = db_get cache => "$id/md5";
		911	if ($dbmd5 eq $md5) {
		912	db_put cache => "$id/meta", $meta;
		913
		914	return db_get cache => "$id/data";
		915	}
		916	}
		917
		918	my $t1 = EV::time;
		919	my $data = $process->(\@data);
		920	my $t2 = EV::time;
		921
		922	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		923
		924	db_put cache => "$id/data", $data;
		925	db_put cache => "$id/md5" , $md5;
		926	db_put cache => "$id/meta", $meta;
		927
		928	return $data;
		929	}
		930
		931	db_get cache => "$id/data"
		932	}
		933
		934	=item cf::datalog type => key => value, ...
		935
		936	Log a datalog packet of the given type with the given key-value pairs.
		937
		938	=cut
		939
		940	sub datalog($@) {
		941	my ($type, %kv) = @_;
		942	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	943	}
382		944
383	=back	945	=back
384		946
385	=cut	947	=cut
386		948
387	#############################################################################	949	#############################################################################
388		950
389	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
390		952
391	Many objects in crossfire are so-called attachable objects. That means you can	953	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	954	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
394		956
395	In the following description, CLASS can be any of C<global>, C<object>	957	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	958	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	959	Deliantra).
398		960
399	=over 4	961	=over 4
400		962
401	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
402		964
…		…
446	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
447		1009
448	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
450		1012
451	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	1014	that are attached at load/instantiate time, thus the need for a name.
453		1015
454	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
455		1017
456	=over 4	1018	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
566		1128
567	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1133
572	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
574		1136
575	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
580		1142
581	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1145
584	} elsif (ref $type) {	1146	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
586		1148
587	} else {	1149	} else {
588	shift @arg;	1150	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
590	}	1152	}
591	}	1153	}
592	}	1154	}
593		1155
594	sub _object_attach {	1156	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
605	}	1167	}
606		1168
607	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
608	} else {	1170	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1172	}
611		1173
612	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
613	}	1175	}
614		1176
…		…
616	if (ref $_[0]) {	1178	if (ref $_[0]) {
617	_object_attach @_;	1179	_object_attach @_;
618	} else {	1180	} else {
619	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
620	}	1182	}
		1183	_recalc_want;
621	};	1184	};
622		1185
623	# all those should be optimised	1186	# all those should be optimised
624	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1192	reattach ($obj);
630	} else {	1193	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
632	}	1195	}
		1196	_recalc_want;
633	};	1197	};
634		1198
635	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
637		1201
…		…
652	";	1216	";
653	die if $@;	1217	die if $@;
654	}	1218	}
655		1219
656	our $override;	1220	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1221	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1222
659	sub override {	1223	sub override {
660	$override = 1;	1224	$override = 1;
661	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
662	}	1226	}
663		1227
664	sub do_invoke {	1228	sub do_invoke {
665	my $event = shift;	1229	my $event = shift;
666	my $callbacks = shift;	1230	my $callbacks = shift;
667		1231
668	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
669		1233
670	local $override;	1234	local $override;
671		1235
672	for (@$callbacks) {	1236	for (@$callbacks) {
673	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
674		1238
675	if ($@) {	1239	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1241	override;
679	}	1242	}
680		1243
681	return 1 if $override;	1244	return 1 if $override;
682	}	1245	}
683		1246
684	0	1247	0
685	}	1248	}
686		1249
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1251
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1253
691	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
692		1255
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1256	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1257	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1259
697	=back	1260	=back
698		1261
699	=cut	1262	=cut
700		1263
701	#############################################################################	1264	#############################################################################
702	# object support	1265	# object support
		1266
		1267	sub _object_equal($$);
		1268	sub _object_equal($$) {
		1269	my ($a, $b) = @_;
		1270
		1271	return 0 unless (ref $a) eq (ref $b);
		1272
		1273	if ("HASH" eq ref $a) {
		1274	my @ka = keys %$a;
		1275	my @kb = keys %$b;
		1276
		1277	return 0 if @ka != @kb;
		1278
		1279	for (0 .. $#ka) {
		1280	return 0 unless $ka[$_] eq $kb[$_];
		1281	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1282	}
		1283
		1284	} elsif ("ARRAY" eq ref $a) {
		1285
		1286	return 0 if @$a != @$b;
		1287
		1288	for (0 .. $#$a) {
		1289	return 0 unless _object_equal $a->[$_], $b->[$_];
		1290	}
		1291
		1292	} elsif ($a ne $b) {
		1293	return 0;
		1294	}
		1295
		1296	1
		1297	}
		1298
		1299	our $SLOW_MERGES;#d#
		1300	sub _can_merge {
		1301	my ($ob1, $ob2) = @_;
		1302
		1303	++$SLOW_MERGES;#d#
		1304
		1305	# we do the slow way here
		1306	return _object_equal $ob1, $ob2
		1307	}
703		1308
704	sub reattach {	1309	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1311	my ($obj) = @_;
707		1312
		1313	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1314	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1315
710	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
711		1317
712	@$registry = ();	1318	@$registry = ();
713		1319
…		…
718	for (@$attach) {	1324	for (@$attach) {
719	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
720	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
721	}	1327	}
722	} else {	1328	} else {
723	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
724	}	1330	}
725	}	1331	}
726	}	1332	}
727		1333
728	cf::attachable->attach (	1334	cf::attachable->attach (
729	prio => -1000000,	1335	prio => -1000000,
730	on_instantiate => sub {	1336	on_instantiate => sub {
731	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
732		1338
733	$data = from_json $data;	1339	$data = decode_json $data;
734		1340
735	for (@$data) {	1341	for (@$data) {
736	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
737		1343
738	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1360	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
756		1362
757	sync_job {	1363	sync_job {
758	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
761		1369
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1373	if ($cf::USE_FSYNC) {
		1374	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;
		1375	aio_fsync $fh;
		1376	}
766	close $fh;	1377	aio_close $fh;
767		1378
768	if (@$objs) {	1379	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1380	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1384	if ($cf::USE_FSYNC) {
		1385	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;
		1386	aio_fsync $fh;
		1387	}
774	close $fh;	1388	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
776	}	1390	}
777	} else {	1391	} else {
778	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
779	}	1393	}
780		1394
781	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1399	} else {
783	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
784	}	1401	}
785	} else {	1402	} else {
786	aio_unlink $filename;	1403	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
788	}	1405	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1406	};
796	}	1407	}
797		1408
798	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
800		1411
…		…
805		1416
806	sub object_thawer_load {	1417	sub object_thawer_load {
807	my ($filename) = @_;	1418	my ($filename) = @_;
808		1419
809	my ($data, $av);	1420	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1421
814	(aio_load $filename, $data) >= 0	1422	(aio_load $filename, $data) >= 0
815	or return;	1423	or return;
816		1424
817	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
819	or return;	1427	or return;
		1428
820	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
821	}	1431	}
822		1432
		1433	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
825	return ($data, $av);	1438	($data, $av)
826	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
827		1446
828	#############################################################################	1447	#############################################################################
829	# command handling &c	1448	# command handling &c
830		1449
831	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
832		1451
833	Register a callback for execution when the client sends the user command	1452	Register a callback for execution when the client sends the user command
834	$name.	1453	$name.
835		1454
836	=cut	1455	=cut
…		…
842	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
843		1462
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1464	}
846		1465
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
848		1467
849	Register a callbackf ro execution when the client sends an extcmd packet.	1468	Register a callback for execution when the client sends an (synchronous)
		1469	extcmd packet. Ext commands will be processed in the order they are
		1470	received by the server, like other user commands. The first argument is
		1471	the logged-in player. Ext commands can only be processed after a player
		1472	has logged in successfully.
850		1473
851	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
852	called.
853		1475
854	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
855		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$reply> function.
		1480
		1481	=item cf::register_exticmd $name => \&callback($ns,@args)
		1482
		1483	Register a callback for execution when the client sends an (asynchronous)
		1484	exticmd packet. Exti commands are processed by the server as soon as they
		1485	are received, i.e. out of order w.r.t. other commands. The first argument
		1486	is a client socket. Exti commands can be received anytime, even before
		1487	log-in.
		1488
		1489	The values will be sent back to the client.
		1490
		1491	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1492
		1493	Same as C<cf::register_extcmd>, but instead of returning values, the
		1494	callback needs to clal the C<$reply> function.
		1495
		1496	=cut
		1497
856	sub register_extcmd {	1498	sub register_extcmd($$) {
857	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
858		1500
859	$EXTCMD{$name} = $cb;	1501	$EXTCMD{$name} = $cb;
860	}	1502	}
861		1503
		1504	sub register_async_extcmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTACMD{$name} = $cb;
		1508	}
		1509
		1510	sub register_exticmd($$) {
		1511	my ($name, $cb) = @_;
		1512
		1513	$EXTICMD{$name} = $cb;
		1514	}
		1515
		1516	sub register_async_exticmd($$) {
		1517	my ($name, $cb) = @_;
		1518
		1519	$EXTIACMD{$name} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
		1523
862	cf::player->attach (	1524	cf::player->attach (
863	on_command => sub {	1525	on_unknown_command => sub {
864	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
865		1527
866	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
867	or return;	1529	or return;
868		1530
…		…
873	cf::override;	1535	cf::override;
874	},	1536	},
875	on_extcmd => sub {	1537	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
877		1539
878	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1541
880	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1546	$cb->(
883	$pl->ext_reply ($msg->{msgid}, %reply);	1547	$pl,
		1548	sub {
		1549	$pl->ext_msg ("reply-$reply", @_)
		1550	if $reply;
		1551	},
		1552	@payload
		1553	);
		1554	} else {
		1555	my @reply;
		1556
		1557	if (my $cb = $EXTCMD{$type}) {
		1558	@reply = $cb->($pl, @payload);
884	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
885	}	1563	}
		1564
886	} else {	1565	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1567	}
889		1568
890	cf::override;	1569	cf::override;
891	},	1570	},
892	);	1571	);
893		1572
		1573	# "readahead" all extensions
894	sub load_extension {	1574	sub cache_extensions {
895	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
896		1576
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1580	}
922	die $@;
923	}	1581	};
924		1582
925	push @EXTS, $pkg;	1583	$grp
		1584	}
		1585
		1586	sub _ext_cfg_reg($$$$) {
		1587	my ($rvar, $varname, $cfgname, $default) = @_;
		1588
		1589	$cfgname = lc $varname
		1590	unless length $cfgname;
		1591
		1592	$EXT_CFG{$cfgname} = [$rvar, $default];
		1593
		1594	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
926	}	1595	}
927		1596
928	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
929	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1606	next unless -r $path;
931	eval {	1607
932	load_extension $ext;	1608	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1609	my $base = $1;
		1610	my $pkg = $1;
		1611	$pkg =~ s/[^[:word:]]/_/g;
		1612	$pkg = "ext::$pkg";
		1613
		1614	open my $fh, "<:utf8", $path
		1615	or die "$path: $!";
		1616
		1617	my $source = do { local $/; <$fh> };
		1618
		1619	my %ext = (
		1620	path => $path,
		1621	base => $base,
		1622	pkg => $pkg,
		1623	);
		1624
		1625	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1626	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1627
		1628	$ext{source} =
		1629	"package $pkg; use common::sense;\n"
		1630	. "#line 1 \"$path\"\n{\n"
		1631	. $source
		1632	. "\n};\n1";
		1633
		1634	$todo{$base} = \%ext;
		1635	}
		1636
		1637	my $pass = 0;
		1638	my %done;
		1639	while (%todo) {
		1640	my $progress;
		1641
		1642	++$pass;
		1643
		1644	ext:
		1645	while (my ($k, $v) = each %todo) {
		1646	for (split /,\s*/, $v->{meta}{depends}) {
		1647	next ext
		1648	unless exists $done{$_};
		1649	}
		1650
		1651	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1652
		1653	my $source = $v->{source};
		1654
		1655	# support "CONF varname :confname = default" pseudo-statements
		1656	$source =~ s{
		1657	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1658	}{
		1659	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1660	}gmxe;
		1661
		1662	my $active = eval $source;
		1663
		1664	if (length $@) {
		1665	error "$v->{path}: $@\n";
		1666
		1667	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1668	if exists $v->{meta}{mandatory};
		1669
		1670	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1671	delete $todo{$k};
		1672	} else {
		1673	$done{$k} = delete $todo{$k};
		1674	push @EXTS, $v->{pkg};
		1675	$progress = 1;
		1676
		1677	info "$v->{base}: extension inactive.\n"
		1678	unless $active;
		1679	}
933	1	1680	}
934	} or warn "$ext not loaded: $@";	1681
		1682	unless ($progress) {
		1683	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1684
		1685	while (my ($k, $v) = each %todo) {
		1686	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1687	if exists $v->{meta}{mandatory};
		1688	}
		1689
		1690	last;
		1691	}
		1692	}
935	}	1693	};
936	}	1694	}
937		1695
938	#############################################################################	1696	#############################################################################
939		1697
		1698	=back
		1699
940	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
941		1701
942	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
943		1703
944	=cut	1704	=cut
945		1705
946	package cf::player;	1706	package cf::player;
947		1707
…		…
949		1709
950	=head3 cf::player	1710	=head3 cf::player
951		1711
952	=over 4	1712	=over 4
953		1713
		1714	=item cf::player::num_playing
		1715
		1716	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1717
		1718	=cut
		1719
		1720	sub num_playing {
		1721	scalar grep
		1722	$_->ob->map
		1723	&& !$_->hidden
		1724	&& !$_->ob->flag (cf::FLAG_WIZ),
		1725	cf::player::list
		1726	}
		1727
954	=item cf::player::find $login	1728	=item cf::player::find $login
955		1729
956	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
957		1731
958	=cut	1732	=cut
959		1733
960	sub playerdir($) {	1734	sub playerdir($) {
961	cf::localdir	1735	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1737	}
967		1738
968	sub path($) {	1739	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1741
971	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
972	}	1743	}
973		1744
974	sub find_active($) {	1745	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
979		1750
980	sub exists($) {	1751	sub exists($) {
981	my ($login) = @_;	1752	my ($login) = @_;
982		1753
983	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1755	or !aio_stat path $login
985	}	1756	}
986		1757
987	sub find($) {	1758	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1760	my $login = $_[0];
990		1761
991	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
992		1763
993	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1765	# rename old playerfiles to new ones
		1766	#TODO: remove when no longer required
		1767	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1768	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1769	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1770	aio_unlink +(playerdir $login) . "/$login.pl";
		1771
		1772	my $f = new_from_file cf::object::thawer path $login
995	or return;	1773	or return;
		1774
		1775	my $pl = cf::player::load_pl $f
		1776	or return;
		1777
		1778	local $cf::PLAYER_LOADING{$login} = $pl;
		1779	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
997	}	1781	}
998	}	1782	}
999	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($pl, $path) = @_;
		1788
		1789	# restore slots saved in save, below
		1790	my $slots = delete $pl->{_slots};
		1791
		1792	$pl->ob->current_weapon ($slots->[0]);
		1793	$pl->combat_ob ($slots->[1]);
		1794	$pl->ranged_ob ($slots->[2]);
		1795	},
		1796	);
1000		1797
1001	sub save($) {	1798	sub save($) {
1002	my ($pl) = @_;	1799	my ($pl) = @_;
1003		1800
1004	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1009	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1010		1807
1011	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1013		1810
		1811	cf::get_slot 0.01;
		1812
		1813	# save slots, to be restored later
		1814	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1815
1014	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1015	Coro::cede;	1817	cf::cede_to_tick;
1016	}	1818	}
1017		1819
1018	sub new($) {	1820	sub new($) {
1019	my ($login) = @_;	1821	my ($login) = @_;
1020		1822
…		…
1026	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1027		1829
1028	$self	1830	$self
1029	}	1831	}
1030		1832
		1833	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1834
		1835	=cut
		1836
		1837	sub send_msg {
		1838	my $ns = shift->ns
		1839	or return;
		1840	$ns->send_msg (@_);
		1841	}
		1842
1031	=item $pl->quit_character	1843	=item $pl->quit_character
1032		1844
1033	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1035		1847
1036	=cut	1848	=cut
1037		1849
1038	sub quit_character {	1850	sub quit_character {
1039	my ($pl) = @_;	1851	my ($pl) = @_;
1040		1852
		1853	my $name = $pl->ob->name;
		1854
1041	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1856	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1857
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1045	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1047	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1048		1866
1049	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1871	$pl->destroy;
		1872
		1873	my $prefix = qr<^~\Q$name\E/>;
		1874
		1875	# nuke player maps
		1876	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1877
1054	IO::AIO::aio_rmtree $temp;	1878	IO::AIO::aio_rmtree $temp;
		1879	}
		1880
		1881	=item $pl->kick
		1882
		1883	Kicks a player out of the game. This destroys the connection.
		1884
		1885	=cut
		1886
		1887	sub kick {
		1888	my ($pl, $kicker) = @_;
		1889
		1890	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1891	$pl->killer ("kicked");
		1892	$pl->ns->destroy;
1055	}	1893	}
1056		1894
1057	=item cf::player::list_logins	1895	=item cf::player::list_logins
1058		1896
1059	Returns am arrayref of all valid playernames in the system, can take a	1897	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1898	while and may block, so not sync_job-capable, ever.
1061		1899
1062	=cut	1900	=cut
1063		1901
1064	sub list_logins {	1902	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1903	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1904	or return [];
1067		1905
1068	my @logins;	1906	my @logins;
1069		1907
1070	for my $login (@$dirs) {	1908	for my $login (@$dirs) {
		1909	my $path = path $login;
		1910
		1911	# a .pst is a dead give-away for a valid player
		1912	# if no pst file found, open and chekc for blocked users
		1913	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1074		1918
1075	utf8::decode $login;	1919	utf8::decode $login;
1076	push @logins, $login;	1920	push @logins, $login;
1077	}	1921	}
1078		1922
1079	\@logins	1923	\@logins
1080	}	1924	}
1081		1925
1082	=item $player->maps	1926	=item $player->maps
		1927
		1928	=item cf::player::maps $login
1083		1929
1084	Returns an arrayref of map paths that are private for this	1930	Returns an arrayref of map paths that are private for this
1085	player. May block.	1931	player. May block.
1086		1932
1087	=cut	1933	=cut
…		…
1105	}	1951	}
1106		1952
1107	\@paths	1953	\@paths
1108	}	1954	}
1109		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1111		1961
1112	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1113		1963
1114	=cut	1964	=cut
1115		1965
1116	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1117	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1118		1968
1119	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1970	}
1123		1971
1124	package cf;	1972	=head3 cf::region
		1973
		1974	=over 4
		1975
		1976	=cut
		1977
		1978	package cf::region;
		1979
		1980	=item cf::region::find_by_path $path
		1981
		1982	Tries to decuce the likely region for a map knowing only its path.
		1983
		1984	=cut
		1985
		1986	sub find_by_path($) {
		1987	my ($path) = @_;
		1988
		1989	$path =~ s/^~[^\/]*//; # skip ~login
		1990
		1991	my ($match, $specificity);
		1992
		1993	for my $region (list) {
		1994	if ($region->{match} && $path =~ $region->{match}) {
		1995	($match, $specificity) = ($region, $region->specificity)
		1996	if $region->specificity > $specificity;
		1997	}
		1998	}
		1999
		2000	$match
		2001	}
1125		2002
1126	=back	2003	=back
1127
1128		2004
1129	=head3 cf::map	2005	=head3 cf::map
1130		2006
1131	=over 4	2007	=over 4
1132		2008
…		…
1144	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1146		2022
1147	sub generate_random_map {	2023	sub generate_random_map {
1148	my ($self, $rmp) = @_;	2024	my ($self, $rmp) = @_;
1149	# mit "rum" bekleckern, nicht	2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
1150	$self->_create_random_map (	2028	$self->_create_random_map ($rmp);
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region}), $rmp->{custom}
1162	)
1163	}	2029	}
1164		2030
1165	=item cf::map->register ($regex, $prio)	2031	=item cf::map->register ($regex, $prio)
1166		2032
1167	Register a handler for the map path matching the given regex at the	2033	Register a handler for the map path matching the given regex at the
…		…
1172		2038
1173	sub register {	2039	sub register {
1174	my (undef, $regex, $prio) = @_;	2040	my (undef, $regex, $prio) = @_;
1175	my $pkg = caller;	2041	my $pkg = caller;
1176		2042
1177	no strict;
1178	push @{"$pkg\::ISA"}, __PACKAGE__;	2043	push @{"$pkg\::ISA"}, __PACKAGE__;
1179		2044
1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1181	}	2046	}
1182		2047
1183	# also paths starting with '/'	2048	# also paths starting with '/'
1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1185		2050
1186	sub thawer_merge {	2051	sub thawer_merge {
1187	my ($self, $merge) = @_;	2052	my ($self, $merge) = @_;
1188		2053
1189	# we have to keep some variables in memory intact	2054	# we have to keep some variables in memory intact
1190	local $self->{path};	2055	local $self->{path};
1191	local $self->{load_path};	2056	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		2057
1195	$self->SUPER::thawer_merge ($merge);	2058	$self->SUPER::thawer_merge ($merge);
1196	}	2059	}
1197		2060
1198	sub normalise {	2061	sub normalise {
1199	my ($path, $base) = @_;	2062	my ($path, $base) = @_;
1200		2063
1201	$path = "$path"; # make sure its a string	2064	$path = "$path"; # make sure it's a string
1202		2065
1203	$path =~ s/\.map$//;	2066	$path =~ s/\.map$//;
1204		2067
1205	# map plan:	2068	# map plan:
1206	#	2069	#
…		…
1221	$base =~ s{[^/]+/?$}{};	2084	$base =~ s{[^/]+/?$}{};
1222	$path = "$base/$path";	2085	$path = "$base/$path";
1223	}	2086	}
1224		2087
1225	for ($path) {	2088	for ($path) {
1226	redo if s{//}{/};
1227	redo if s{/\.?/}{/};	2089	redo if s{/\.?/}{/};
1228	redo if s{/[^/]+/\.\./}{/};	2090	redo if s{/[^/]+/\.\./}{/};
1229	}	2091	}
1230		2092
1231	$path	2093	$path
…		…
1245	$self->init; # pass $1 etc.	2107	$self->init; # pass $1 etc.
1246	return $self;	2108	return $self;
1247	}	2109	}
1248	}	2110	}
1249		2111
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
1251	()	2113	()
1252	}	2114	}
1253		2115
		2116	# may re-bless or do other evil things
1254	sub init {	2117	sub init {
1255	my ($self) = @_;	2118	my ($self) = @_;
1256		2119
1257	$self	2120	$self
1258	}	2121	}
…		…
1270		2133
1271	# the original (read-only) location	2134	# the original (read-only) location
1272	sub load_path {	2135	sub load_path {
1273	my ($self) = @_;	2136	my ($self) = @_;
1274		2137
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2138	"$MAPDIR/$self->{path}.map"
1276	}	2139	}
1277		2140
1278	# the temporary/swap location	2141	# the temporary/swap location
1279	sub save_path {	2142	sub save_path {
1280	my ($self) = @_;	2143	my ($self) = @_;
1281		2144
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2146	"$TMPDIR/$path.map"
1284	}	2147	}
1285		2148
1286	# the unique path, undef == no special unique path	2149	# the unique path, undef == no special unique path
1287	sub uniq_path {	2150	sub uniq_path {
1288	my ($self) = @_;	2151	my ($self) = @_;
1289		2152
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2154	"$UNIQUEDIR/$path"
1292	}	2155	}
1293		2156
1294	# and all this just because we cannot iterate over	2157	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	2158	my ($self) = @_;
1298		2159
1299	$_->change_map_light ($change)	2160	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	2161
		2162	$self->do_decay_objects;
1301	}	2163	}
1302		2164
1303	sub unlink_save {	2165	sub unlink_save {
1304	my ($self) = @_;	2166	my ($self) = @_;
1305		2167
1306	utf8::encode (my $save = $self->save_path);	2168	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2169	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2170	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	2171	}
1315		2172
1316	sub load_header_from($) {	2173	sub load_header_from($) {
1317	my ($self, $path) = @_;	2174	my ($self, $path) = @_;
1318		2175
1319	utf8::encode $path;	2176	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	2178	or return;
1325		2179
		2180	$self->_load_header ($f)
		2181	or return;
		2182
		2183	local $MAP_LOADING{$self->{path}} = $self;
		2184	$f->resolve_delayed_derefs;
		2185
1326	$self->{load_path} = $path;	2186	$self->{load_path} = $path;
1327		2187
1328	1	2188	1
1329	}	2189	}
1330		2190
		2191	# used to laod the header of an original map
1331	sub load_header_orig {	2192	sub load_header_orig {
1332	my ($self) = @_;	2193	my ($self) = @_;
1333		2194
1334	$self->load_header_from ($self->load_path)	2195	$self->load_header_from ($self->load_path)
1335	}	2196	}
1336		2197
		2198	# used to laod the header of an instantiated map
1337	sub load_header_temp {	2199	sub load_header_temp {
1338	my ($self) = @_;	2200	my ($self) = @_;
1339		2201
1340	$self->load_header_from ($self->save_path)	2202	$self->load_header_from ($self->save_path)
1341	}	2203	}
1342		2204
		2205	# called after loading the header from an instantiated map
1343	sub prepare_temp {	2206	sub prepare_temp {
1344	my ($self) = @_;	2207	my ($self) = @_;
1345		2208
1346	$self->last_access ((delete $self->{last_access})	2209	$self->last_access ((delete $self->{last_access})
1347	|| $cf::RUNTIME); #d#	2210	|| $cf::RUNTIME); #d#
1348	# safety	2211	# safety
1349	$self->{instantiate_time} = $cf::RUNTIME	2212	$self->{instantiate_time} = $cf::RUNTIME
1350	if $self->{instantiate_time} > $cf::RUNTIME;	2213	if $self->{instantiate_time} > $cf::RUNTIME;
1351	}	2214	}
1352		2215
		2216	# called after loading the header from an original map
1353	sub prepare_orig {	2217	sub prepare_orig {
1354	my ($self) = @_;	2218	my ($self) = @_;
1355		2219
1356	$self->{load_original} = 1;	2220	$self->{load_original} = 1;
1357	$self->{instantiate_time} = $cf::RUNTIME;	2221	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1368	$self->load_header_orig	2232	$self->load_header_orig
1369	or return;	2233	or return;
1370	$self->prepare_orig;	2234	$self->prepare_orig;
1371	}	2235	}
1372		2236
		2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
		2239
		2240	$self->default_region (cf::region::find_by_path $self->{path})
		2241	unless $self->default_region;
		2242
1373	1	2243	1
1374	}	2244	}
1375		2245
1376	sub find;	2246	sub find;
1377	sub find {	2247	sub find {
1378	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1379		2249
		2250	cf::cede_to_tick;
		2251
1380	$path = normalise $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1381		2253
		2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1383		2256
1384	$cf::MAP{$path} || do {	2257	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	2258	my $map = new_from_path cf::map $path
1387	or return;	2259	or return;
1388		2260
1389	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1390		2262
1391	$map->load_header	2263	$map->load_header
1392	or return;	2264	or return;
1393		2265
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2267	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1397	$map->reset;	2271	$map->reset;
1398	undef $guard;
1399	return find $path;	2272	return find $path;
1400	}	2273	}
1401		2274
1402	$cf::MAP{$path} = $map	2275	$cf::MAP{$path} = $map
1403	}	2276	}
1404	}	2277	}
1405		2278
1406	sub pre_load { }	2279	sub pre_load { }
1407	sub post_load { }	2280	#sub post_load { } # XS
1408		2281
1409	sub load {	2282	sub load {
1410	my ($self) = @_;	2283	my ($self) = @_;
1411		2284
1412	local $self->{deny_reset} = 1; # loading can take a long time	2285	local $self->{deny_reset} = 1; # loading can take a long time
1413		2286
1414	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2290	my $guard = cf::lock_acquire "map_data:$path";
1416		2291
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1418		2294
1419	$self->in_memory (cf::MAP_LOADING);
1420
1421	$self->alloc;	2295	$self->alloc;
1422		2296
1423	$self->pre_load;	2297	$self->pre_load;
		2298	cf::cede_to_tick;
1424		2299
1425	$self->_load_objects ($self->{load_path}, 1)	2300	if (exists $self->{load_path}) {
		2301	my $f = new_from_file cf::object::thawer $self->{load_path};
		2302	$f->skip_block;
		2303	$self->_load_objects ($f)
1426	or return;	2304	or return;
1427		2305
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1429	if delete $self->{load_original};	2307	if delete $self->{load_original};
1430		2308
1431	if (my $uniq = $self->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2310	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2313	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1436	}	2318	}
1437	}
1438		2319
1439	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1440		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1441	# now do the right thing for maps	2329	# now do the right thing for maps
1442	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2332	unless $self->difficulty;
1452	Coro::cede;	2333	cf::cede_to_tick;
1453	$self->activate;	2334
		2335	unless ($self->{deny_activate}) {
		2336	$self->decay_objects;
		2337	$self->fix_auto_apply;
		2338	$self->update_buttons;
		2339	cf::cede_to_tick;
		2340	#$self->activate; # no longer activate maps automatically
		2341	}
		2342
		2343	$self->{last_save} = $cf::RUNTIME;
		2344	$self->last_access ($cf::RUNTIME);
1454	}	2345	}
1455		2346
1456	$self->post_load;	2347	$self->post_load;
1457		2348
1458	$self->in_memory (cf::MAP_IN_MEMORY);	2349	1
1459	}	2350	}
1460		2351
		2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
1461	sub customise_for {	2355	sub customise_for {
1462	my ($self, $ob) = @_;	2356	my ($self, $ob) = @_;
1463		2357
1464	return find "~" . $ob->name . "/" . $self->{path}	2358	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2359	if $self->per_player;
1466		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
1467	$self	2364	$self
1468	}
1469
1470	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {
1472	my ($map) = @_;
1473
1474	my @diag; # diagonal neighbours
1475
1476	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)
1478	or next;
1479	$neigh = find $neigh, $map
1480	or next;
1481	$neigh->load;
1482
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}
1486
1487	for (@diag) {
1488	my $neigh = find @$_
1489	or next;
1490	$neigh->load;
1491	}
1492	}	2365	}
1493		2366
1494	sub find_sync {	2367	sub find_sync {
1495	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1496		2369
1497	cf::sync_job { find $path, $origin }	2370	# it's a bug to call this from the main context
		2371	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2372	if $Coro::current == $Coro::main;
		2373
		2374	find $path, $origin
1498	}	2375	}
1499		2376
1500	sub do_load_sync {	2377	sub do_load_sync {
1501	my ($map) = @_;	2378	my ($map) = @_;
1502		2379
1503	cf::sync_job { $map->load };	2380	# it's a bug to call this from the main context
		2381	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2382	if $Coro::current == $Coro::main;
		2383
		2384	$map->load;
1504	}	2385	}
1505		2386
1506	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2388	our $MAP_PREFETCHER = undef;
1508		2389
1509	sub find_async {	2390	sub find_async {
1510	my ($path, $origin) = @_;	2391	my ($path, $origin, $load) = @_;
1511		2392
1512	$path = normalise $path, $origin && $origin->{path};	2393	$path = normalise $path, $origin;
1513		2394
1514	if (my $map = $cf::MAP{$path}) {	2395	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2396	return $map if !$load || $map->linkable;
1516	}	2397	}
1517		2398
1518	undef $MAP_PREFETCH{$path};	2399	$MAP_PREFETCH{$path} |= $load;
		2400
1519	$MAP_PREFETCHER ||= cf::async {	2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
1520	while (%MAP_PREFETCH) {	2404	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2405	for my $k (keys %MAP_PREFETCH) {
1522	my $map = find $path	2406	if (my $map = find $k) {
1523	or next;	2407	$map->load if $MAP_PREFETCH{$k};
1524	$map->load;	2408	}
1525		2409
1526	delete $MAP_PREFETCH{$path};	2410	delete $MAP_PREFETCH{$k};
1527	}	2411	}
1528	}	2412	}
1529	undef $MAP_PREFETCHER;	2413	undef $MAP_PREFETCHER;
1530	};	2414	};
1531	$MAP_PREFETCHER->prio (6);	2415	$MAP_PREFETCHER->prio (6);
1532		2416
1533	()	2417	()
1534	}	2418	}
1535		2419
		2420	# common code, used by both ->save and ->swapout
1536	sub save {	2421	sub _save {
1537	my ($self) = @_;	2422	my ($self) = @_;
1538
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1540		2423
1541	$self->{last_save} = $cf::RUNTIME;	2424	$self->{last_save} = $cf::RUNTIME;
1542		2425
1543	return unless $self->dirty;	2426	return unless $self->dirty;
1544		2427
…		…
1550	return if $self->{deny_save};	2433	return if $self->{deny_save};
1551		2434
1552	local $self->{last_access} = $self->last_access;#d#	2435	local $self->{last_access} = $self->last_access;#d#
1553		2436
1554	cf::async {	2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2439	$_->contr->save for $self->players;
1556	};	2440	};
		2441
		2442	cf::get_slot 0.02;
1557		2443
1558	if ($uniq) {	2444	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2447	} else {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1563	}	2449	}
1564	}	2450	}
1565		2451
		2452	sub save {
		2453	my ($self) = @_;
		2454
		2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2456
		2457	$self->_save;
		2458	}
		2459
1566	sub swap_out {	2460	sub swap_out {
1567	my ($self) = @_;	2461	my ($self) = @_;
1568		2462
1569	# save first because save cedes
1570	$self->save;
1571
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1574	return if $self->players;	2467	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
1576	return if $self->{deny_save};
1577		2468
		2469	# first deactivate the map and "unlink" it from the core
		2470	$self->deactivate;
		2471	$_->clear_links_to ($self) for values %cf::MAP;
		2472	$self->state (cf::MAP_SWAPPED);
		2473
		2474	# then atomically save
		2475	$self->_save;
		2476
		2477	# then free the map
1578	$self->clear;	2478	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2479	}
1581		2480
1582	sub reset_at {	2481	sub reset_at {
1583	my ($self) = @_;	2482	my ($self) = @_;
1584		2483
1585	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1588		2486
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2489
…		…
1602	my ($self) = @_;	2500	my ($self) = @_;
1603		2501
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2503
1606	return if $self->players;	2504	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2505
1609	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
		2507
		2508	$self->state (cf::MAP_SWAPPED);
		2509
		2510	# need to save uniques path
		2511	unless ($self->{deny_save}) {
		2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2513
		2514	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2515	if $uniq;
		2516	}
1610		2517
1611	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1612		2519
1613	$self->in_memory (cf::MAP_SWAPPED);	2520	$self->deactivate;
		2521	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2522	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2523
1618	$self->unlink_save;	2524	$self->unlink_save;
1619	$self->destroy;	2525	$self->destroy;
1620	}	2526	}
1621		2527
1622	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1623		2529
1624	sub nuke {	2530	sub nuke {
1625	my ($self) = @_;	2531	my ($self) = @_;
1626		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
1627	delete $cf::MAP{$self->path};	2536	delete $cf::MAP{$self->path};
1628		2537
1629	$self->unlink_save;	2538	$self->unlink_save;
1630		2539
1631	bless $self, "cf::map";	2540	bless $self, "cf::map::wrap";
1632	delete $self->{deny_reset};	2541	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2545
1637	$cf::MAP{$self->path} = $self;	2546	$cf::MAP{$self->path} = $self;
		2547	}
1638		2548
1639	$self->reset; # polite request, might not happen	2549	$self->reset; # polite request, might not happen
		2550	}
		2551
		2552	=item $maps = cf::map::tmp_maps
		2553
		2554	Returns an arrayref with all map paths of currently instantiated and saved
		2555	maps. May block.
		2556
		2557	=cut
		2558
		2559	sub tmp_maps() {
		2560	[
		2561	map {
		2562	utf8::decode $_;
		2563	/\.map$/
		2564	? normalise $_
		2565	: ()
		2566	} @{ aio_readdir $TMPDIR or [] }
		2567	]
		2568	}
		2569
		2570	=item $maps = cf::map::random_maps
		2571
		2572	Returns an arrayref with all map paths of currently instantiated and saved
		2573	random maps. May block.
		2574
		2575	=cut
		2576
		2577	sub random_maps() {
		2578	[
		2579	map {
		2580	utf8::decode $_;
		2581	/\.map$/
		2582	? normalise "?random/$_"
		2583	: ()
		2584	} @{ aio_readdir $RANDOMDIR or [] }
		2585	]
1640	}	2586	}
1641		2587
1642	=item cf::map::unique_maps	2588	=item cf::map::unique_maps
1643		2589
1644	Returns an arrayref of paths of all shared maps that have	2590	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2591	instantiated unique items. May block.
1646		2592
1647	=cut	2593	=cut
1648		2594
1649	sub unique_maps() {	2595	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2596	[
1651	or return;	2597	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2598	utf8::decode $_;
1657	next if /\.pst$/;	2599	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2601	? ()
1660	push @paths, cf::map::normalise $_;	2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2604	]
1662
1663	\@paths
1664	}	2605	}
1665		2606
1666	package cf;	2607	=item cf::map::static_maps
		2608
		2609	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2610	file in the shared directory excluding F</styles> and F</editor>). May
		2611	block.
		2612
		2613	=cut
		2614
		2615	sub static_maps() {
		2616	my @dirs = "";
		2617	my @maps;
		2618
		2619	while (@dirs) {
		2620	my $dir = shift @dirs;
		2621
		2622	next if $dir eq "/styles" || $dir eq "/editor";
		2623
		2624	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2625	or return;
		2626
		2627	for (@$files) {
		2628	s/\.map$// or next;
		2629	utf8::decode $_;
		2630	push @maps, "$dir/$_";
		2631	}
		2632
		2633	push @dirs, map "$dir/$_", @$dirs;
		2634	}
		2635
		2636	\@maps
		2637	}
1667		2638
1668	=back	2639	=back
1669		2640
1670	=head3 cf::object	2641	=head3 cf::object
1671		2642
…		…
1675		2646
1676	=over 4	2647	=over 4
1677		2648
1678	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1679		2650
1680	Returns the inventory of the object _and_ their inventories, recursively.	2651	Returns the inventory of the object I<and> their inventories, recursively,
		2652	but I<not> the object itself.
1681		2653
1682	=cut	2654	=cut
1683		2655
1684	sub inv_recursive_;	2656	sub inv_recursive_;
1685	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1688		2660
1689	sub inv_recursive {	2661	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1691	}	2663	}
1692		2664
		2665	=item $ref = $ob->ref
		2666
		2667	Creates and returns a persistent reference to an object that can be stored as a string.
		2668
		2669	=item $ob = cf::object::deref ($refstring)
		2670
		2671	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2672	even if the object actually exists. May block.
		2673
		2674	=cut
		2675
		2676	sub deref {
		2677	my ($ref) = @_;
		2678
		2679	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2680	my ($uuid, $name) = ($1, $2);
		2681	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2682	or return;
		2683	$pl->ob->uuid eq $uuid
		2684	or return;
		2685
		2686	$pl->ob
		2687	} else {
		2688	warn "$ref: cannot resolve object reference\n";
		2689	undef
		2690	}
		2691	}
		2692
1693	package cf;	2693	package cf;
1694		2694
1695	=back	2695	=back
1696		2696
1697	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2704	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1706		2706
1707	=cut	2707	=cut
		2708
		2709	our $SAY_CHANNEL = {
		2710	id => "say",
		2711	title => "Map",
		2712	reply => "say ",
		2713	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2714	};
		2715
		2716	our $CHAT_CHANNEL = {
		2717	id => "chat",
		2718	title => "Chat",
		2719	reply => "chat ",
		2720	tooltip => "Player chat and shouts, global to the server.",
		2721	};
1708		2722
1709	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2724	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2725	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1714		2728
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2730
1717	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1719	} else {	2734	} else {
		2735	my $pl = $self->contr;
		2736
		2737	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2738	my $dialog = $pl->{npc_dialog};
		2739	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2740
		2741	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1722	}	2745	}
		2746	}
		2747
		2748	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2749
		2750	=cut
		2751
		2752	sub cf::object::send_msg {
		2753	my $pl = shift->contr
		2754	or return;
		2755	$pl->send_msg (@_);
1723	}	2756	}
1724		2757
1725	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1726		2759
1727	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1728	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1729		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1730	=cut	2788	=cut
1731		2789
1732	sub cf::object::player::may {	2790	sub cf::object::player::may {
1733	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1734		2792
1735	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1736	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1737	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1738	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1739	}	2797	}
1740		2798
1741	=item $player_object->enter_link	2799	=item $player_object->enter_link
1742		2800
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2801	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2802
1745	The player should be reasonably safe there for short amounts of time. You	2803	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2804	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2805	though, as the player cannot control the character while it is on the link
		2806	map.
1747		2807
1748	Will never block.	2808	This method will never block, which is the whole reaosn for it's
		2809	existance: you can I<always> put a player onto the link map, which is the
		2810	only place to put objects that is guaranteed to exist.
		2811
		2812	A typical usage pattern is to call C<enter_link> synchronously from the
		2813	server, then start a new thread, do your blocking stuff there and then
		2814	call C<leave_link> from that thread.
1749		2815
1750	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1751		2817
1752	Moves the player out of the special C<{link}> map onto the specified	2818	Moves the player out of the special C<{link}> map onto the specified
1753	map. If the map is not valid (or omitted), the player will be moved back	2819	map. If the map is not valid (or omitted), the player will be moved back
…		…
1771	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1772	my ($self) = @_;	2838	my ($self) = @_;
1773		2839
1774	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1775		2841
		2842	++$self->{_link_recursion};
		2843
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2845
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1780		2848
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1782	}	2850	}
1783		2851
1784	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1786		2856
1787	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1788		2858
1789	unless ($map) {	2859	unless ($map) {
1790	# restore original map position	2860	# restore original map position
…		…
1801	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1802	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1803		2873
1804	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1807		2877
1808	$map->load;	2878	$map->load;
1809	$map->load_diag;
1810		2879
1811	return unless $self->contr->active;	2880	return unless $self->contr->active;
		2881
		2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2883	if ($self->enter_map ($map, $x, $y)) {
		2884	# entering was successful
		2885	delete $self->{_link_recursion};
		2886	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2887	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}
1815
1816	cf::player->attach (
1817	on_logout => sub {
1818	my ($pl) = @_;
1819
1820	# abort map switching before logout
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},	2888	}
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2889
1830	# try to abort aborted map switching on player login :)	2890	}
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2891
1848	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1849		2893
		2894	Moves the player to the given map-path and coordinates by first freezing
		2895	her, loading and preparing them map, calling the provided $check callback
		2896	that has to return the map if sucecssful, and then unfreezes the player on
		2897	the new (success) or old (failed) map position. In either case, $done will
		2898	be called at the end of this process.
		2899
		2900	Note that $check will be called with a potentially non-loaded map, so if
		2901	it needs a loaded map it has to call C<< ->load >>.
		2902
1850	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1851		2906
1852	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2908	my ($self, $path, $x, $y, $check, $done) = @_;
		2909
		2910	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2911	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2912	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2913	($path, $x, $y) = @$EMERGENCY_POSITION;
		2914	}
		2915
		2916	# do generation counting so two concurrent goto's will be executed in-order
		2917	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2918
1855	$self->enter_link;	2919	$self->enter_link;
1856		2920
1857	(async {	2921	(async {
		2922	$Coro::current->{desc} = "player::goto $path $x $y";
		2923
		2924	# *tag paths override both path and x|y
		2925	if ($path =~ /^\*(.*)$/) {
		2926	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2927	my $ob = $obs[rand @obs];
		2928
		2929	# see if we actually can go there
		2930	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2931	$ob = $obs[rand @obs];
		2932	} else {
		2933	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2934	}
		2935	# else put us there anyways for now #d#
		2936
		2937	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2938	} else {
		2939	($path, $x, $y) = (undef, undef, undef);
		2940	}
		2941	}
		2942
1858	my $map = eval {	2943	my $map = eval {
1859	my $map = cf::map::find $path;	2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
		2949	} else {
		2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
		2952
1861	$map	2953	$map
		2954	};
		2955
		2956	if ($@) {
		2957	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2958	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2959	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1866	})->prio (1);	2967	})->prio (1);
1867	}	2968	}
1868		2969
1869	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1870		2971
…		…
1890	}	2991	}
1891		2992
1892	sub prepare_random_map {	2993	sub prepare_random_map {
1893	my ($exit) = @_;	2994	my ($exit) = @_;
1894		2995
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2996	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2997	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2998	# that depends on the exit object
1900		2999
1901	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	3002	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	3003	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1908	}	3009	}
1909		3010
1910	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1911		3012
1912	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	3015	my $meta = "$RANDOMDIR/$md5.meta";
1915		3016
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	3019	undef $fh;
1919	aio_rename "$meta~", $meta;	3020	aio_rename "$meta~", $meta;
1920		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1923	}	3028	}
1924	}	3029	}
1925		3030
1926	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
1928		3033
1929	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1930		3035
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	3036	$self->enter_link;
1941		3037
1942	(async {	3038	(async {
1943	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1944	unless (eval {	3041	unless (eval {
		3042	$self->deactivate_recursive; # just to be sure
		3043
		3044	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3045	my $x = $exit->stats->hp;
		3046	my $y = $exit->stats->sp;
		3047
		3048	# special map handling
		3049	my $slaying = $exit->slaying;
		3050
		3051	# special map handling
		3052	if ($slaying eq "/!") {
		3053	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3054
		3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
		3058	$map = $exit->slaying;
		3059
		3060	} elsif ($slaying eq '!up') {
		3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
		3064
		3065	} elsif ($slaying eq '!down') {
		3066	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3067	$x = $exit->x;
		3068	$y = $exit->y;
		3069	}
		3070
1945	$self->goto ($slaying, $hp, $sp);	3071	$self->goto ($map, $x, $y);
1946		3072
		3073	# if exit is damned, update players death & WoR home-position
		3074	$self->contr->savebed ($map, $x, $y)
		3075	if $exit->flag (cf::FLAG_DAMNED);
		3076
1947	1;	3077	1
1948	}) {	3078	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	3080	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	3081	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1953		3083
1954	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1955	$self->leave_link;	3085	$self->leave_link;
1956	}	3086	}
1957	})->prio (1);	3087	})->prio (1);
1958	}	3088	}
1959		3089
1960	=head3 cf::client	3090	=head3 cf::client
1961		3091
1962	=over 4	3092	=over 4
1963		3093
1964	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1965		3095
1966	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1967	should not be used under normal circumstances.	3097	them as required.
1968		3098
1969	=cut	3099	=cut
1970		3100
		3101	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3102
		3103	sub cf::client::send_big_packet {
		3104	my ($self, $pkt) = @_;
		3105
		3106	# try lzf for large packets
		3107	$pkt = "lzf " . Compress::LZF::compress $pkt
		3108	if 1024 <= length $pkt and $self->{can_lzf};
		3109
		3110	# split very large packets
		3111	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3112	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3113	$pkt = "frag";
		3114	}
		3115
		3116	$self->send_packet ($pkt);
		3117	}
		3118
		3119	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3120
		3121	Send a msg packet to the client, formatting the msg for the client if
		3122	necessary. C<$type> should be a string identifying the type of the
		3123	message, with C<log> being the default. If C<$color> is negative, suppress
		3124	the message unless the client supports the msg packet.
		3125
		3126	=cut
		3127
		3128	# non-persistent channels (usually the info channel)
		3129	our %CHANNEL = (
		3130	"c/motd" => {
		3131	id => "infobox",
		3132	title => "MOTD",
		3133	reply => undef,
		3134	tooltip => "The message of the day",
		3135	},
		3136	"c/identify" => {
		3137	id => "infobox",
		3138	title => "Identify",
		3139	reply => undef,
		3140	tooltip => "Items recently identified",
		3141	},
		3142	"c/examine" => {
		3143	id => "infobox",
		3144	title => "Examine",
		3145	reply => undef,
		3146	tooltip => "Signs and other items you examined",
		3147	},
		3148	"c/shopinfo" => {
		3149	id => "infobox",
		3150	title => "Shop Info",
		3151	reply => undef,
		3152	tooltip => "What your bargaining skill tells you about the shop",
		3153	},
		3154	"c/book" => {
		3155	id => "infobox",
		3156	title => "Book",
		3157	reply => undef,
		3158	tooltip => "The contents of a note or book",
		3159	},
		3160	"c/lookat" => {
		3161	id => "infobox",
		3162	title => "Look",
		3163	reply => undef,
		3164	tooltip => "What you saw there",
		3165	},
		3166	"c/who" => {
		3167	id => "infobox",
		3168	title => "Players",
		3169	reply => undef,
		3170	tooltip => "Shows players who are currently online",
		3171	},
		3172	"c/body" => {
		3173	id => "infobox",
		3174	title => "Body Parts",
		3175	reply => undef,
		3176	tooltip => "Shows which body parts you possess and are available",
		3177	},
		3178	"c/statistics" => {
		3179	id => "infobox",
		3180	title => "Statistics",
		3181	reply => undef,
		3182	tooltip => "Shows your primary statistics",
		3183	},
		3184	"c/skills" => {
		3185	id => "infobox",
		3186	title => "Skills",
		3187	reply => undef,
		3188	tooltip => "Shows your experience per skill and item power",
		3189	},
		3190	"c/shopitems" => {
		3191	id => "infobox",
		3192	title => "Shop Items",
		3193	reply => undef,
		3194	tooltip => "Shows the items currently for sale in this shop",
		3195	},
		3196	"c/resistances" => {
		3197	id => "infobox",
		3198	title => "Resistances",
		3199	reply => undef,
		3200	tooltip => "Shows your resistances",
		3201	},
		3202	"c/pets" => {
		3203	id => "infobox",
		3204	title => "Pets",
		3205	reply => undef,
		3206	tooltip => "Shows information abotu your pets/a specific pet",
		3207	},
		3208	"c/perceiveself" => {
		3209	id => "infobox",
		3210	title => "Perceive Self",
		3211	reply => undef,
		3212	tooltip => "You gained detailed knowledge about yourself",
		3213	},
		3214	"c/uptime" => {
		3215	id => "infobox",
		3216	title => "Uptime",
		3217	reply => undef,
		3218	tooltip => "How long the server has been running since last restart",
		3219	},
		3220	"c/mapinfo" => {
		3221	id => "infobox",
		3222	title => "Map Info",
		3223	reply => undef,
		3224	tooltip => "Information related to the maps",
		3225	},
		3226	"c/party" => {
		3227	id => "party",
		3228	title => "Party",
		3229	reply => "gsay ",
		3230	tooltip => "Messages and chat related to your party",
		3231	},
		3232	"c/death" => {
		3233	id => "death",
		3234	title => "Death",
		3235	reply => undef,
		3236	tooltip => "Reason for and more info about your most recent death",
		3237	},
		3238	"c/fatal" => {
		3239	id => "fatal",
		3240	title => "Fatal Error",
		3241	reply => undef,
		3242	tooltip => "Reason for the server disconnect",
		3243	},
		3244	"c/say" => $SAY_CHANNEL,
		3245	"c/chat" => $CHAT_CHANNEL,
		3246	);
		3247
1971	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($self, $channel, $msg, $color, @extra) = @_;
		3250
		3251	$msg = $self->pl->expand_cfpod ($msg)
		3252	unless $color & cf::NDI_VERBATIM;
		3253
		3254	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3255
		3256	# check predefined channels, for the benefit of C
		3257	if ($CHANNEL{$channel}) {
		3258	$channel = $CHANNEL{$channel};
		3259
		3260	$self->ext_msg (channel_info => $channel);
		3261	$channel = $channel->{id};
		3262
		3263	} elsif (ref $channel) {
		3264	# send meta info to client, if not yet sent
		3265	unless (exists $self->{channel}{$channel->{id}}) {
		3266	$self->{channel}{$channel->{id}} = $channel;
		3267	$self->ext_msg (channel_info => $channel);
		3268	}
		3269
		3270	$channel = $channel->{id};
		3271	}
		3272
		3273	return unless @extra || length $msg;
		3274
		3275	# default colour, mask it out
		3276	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3277	if $color & cf::NDI_DEF;
		3278
		3279	my $pkt = "msg "
		3280	. $self->{json_coder}->encode (
		3281	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3282	);
		3283
		3284	$self->send_big_packet ($pkt);
		3285	}
		3286
		3287	=item $client->ext_msg ($type, @msg)
		3288
		3289	Sends an ext event to the client.
		3290
		3291	=cut
		3292
		3293	sub cf::client::ext_msg($$@) {
1972	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1973		3295
1974	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1976	}	3297	}
1977
1978		3298
1979	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1980		3300
1981	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3302	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3303	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		3304
1985	Queries can fail, so check the return code. Or don't, as queries will become	3305	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	3306	become reliable at some point in the future.
1987		3307
1988	=cut	3308	=cut
1989		3309
1990	sub cf::client::query {	3310	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	3319	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		3321
2002	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	3323	if @{ $self->{query_queue} } == 1;
		3324
		3325	1
		3326	}
		3327
		3328	=item $client->update_command_faces
		3329
		3330	=cut
		3331
		3332	our %COMMAND_FACE;
		3333
		3334	sub cf::client::update_command_faces {
		3335	my ($self) = @_;
		3336
		3337	my @faces = grep $_,
		3338	$COMMAND_FACE{preferred},
		3339	$COMMAND_FACE{standard},
		3340	$COMMAND_FACE{skill},
		3341	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3342	$COMMAND_FACE{emote},
		3343	;
		3344
		3345	$self->send_face ($_)
		3346	for @faces;
		3347	$self->flush_fx;
		3348
		3349	$self->ext_msg (command_list => @faces);
		3350	}
		3351
		3352	=item cf::client::set_command_face $type, $commands
		3353
		3354	=cut
		3355
		3356	sub cf::client::set_command_face {
		3357	my ($type, $list) = @_;
		3358
		3359	my $idx = &cf::face::set ( #d# ugly forward reference
		3360	"command_list/$type" => cf::FT_RSRC,
		3361	JSON::XS->new->utf8->encode ([ sort @$list ])
		3362	);
		3363
		3364	$COMMAND_FACE{$type} = $idx;
2004	}	3365	}
2005		3366
2006	cf::client->attach (	3367	cf::client->attach (
		3368	on_connect => sub {
		3369	my ($ns) = @_;
		3370
		3371	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3372	},
2007	on_reply => sub {	3373	on_reply => sub {
2008	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
2009		3375
2010	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
2011	# get handled first	3377	# get handled first
…		…
2023	} else {	3389	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3391	}
2026	}	3392	}
2027	},	3393	},
		3394	on_exticmd => sub {
		3395	my ($ns, $buf) = @_;
		3396
		3397	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3398
		3399	if (ref $msg) {
		3400	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3401
		3402	if (my $cb = $EXTIACMD{$type}) {
		3403	$cb->(
		3404	$ns,
		3405	sub {
		3406	$ns->ext_msg ("reply-$reply", @_)
		3407	if $reply;
		3408	},
		3409	@payload
		3410	);
		3411	} else {
		3412	my @reply;
		3413
		3414	if (my $cb = $EXTICMD{$type}) {
		3415	@reply = $cb->($ns, @payload);
		3416	}
		3417
		3418	$ns->ext_msg ("reply-$reply", @reply)
		3419	if $reply;
		3420	}
		3421	} else {
		3422	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3423	}
		3424
		3425	cf::override;
		3426	},
2028	);	3427	);
2029		3428
2030	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
2031		3430
2032	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
2048		3447
2049	$coro	3448	$coro
2050	}	3449	}
2051		3450
2052	cf::client->attach (	3451	cf::client->attach (
2053	on_destroy => sub {	3452	on_client_destroy => sub {
2054	my ($ns) = @_;	3453	my ($ns) = @_;
2055		3454
2056	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2057	},	3456	},
2058	);	3457	);
…		…
2073	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2075		3474
2076	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2077		3476
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3477	$safe->permit_only (Opcode::opset qw(
		3478	:base_core :base_mem :base_orig :base_math :base_loop
		3479	grepstart grepwhile mapstart mapwhile
		3480	sort time
		3481	));
2079		3482
2080	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2081		3484
2082	=pod	3485	=pod
2083		3486
2084	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2085		3488
2086	cf::object contr pay_amount pay_player map	3489	cf::object
		3490	contr pay_amount pay_player map x y force_find force_add destroy
		3491	insert remove name archname title slaying race decrease split
		3492	value
		3493
2087	cf::object::player player	3494	cf::object::player
2088	cf::player peaceful	3495	player
2089	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2090		3502
2091	=cut	3503	=cut
2092		3504
2093	for (	3505	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3506	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3507	insert remove inv nrof name archname title slaying race
		3508	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2098	) {	3512	) {
2099	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2102	for @funs;	3515	for @funs;
2103	}	3516	}
2104		3517
…		…
2119		3532
2120	my $qcode = $code;	3533	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2123		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2124	local $_;	3540	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;
2126		3541
2127	my $eval =	3542	my $eval =
2128	"do {\n"	3543	"do {\n"
2129	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2130	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2131	. $code	3546	. $code
2132	. "\n}"	3547	. "\n}"
2133	;	3548	;
2134		3549
		3550	if ($CFG{safe_eval}) {
2135	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2136	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2137	sub_generation_inc;	3554	sub_generation_inc;
		3555	} else {
		3556	local @cf::_safe_eval_args = values %vars;
		3557	@res = wantarray ? eval eval : scalar eval $eval;
		3558	}
2138		3559
2139	if ($@) {	3560	if ($@) {
2140	warn "$@";	3561	warn "$@",
2141	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2142	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2143	}	3564	}
2144		3565
2145	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2146	}	3567	}
2147		3568
…		…
2161	=cut	3582	=cut
2162		3583
2163	sub register_script_function {	3584	sub register_script_function {
2164	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2165		3586
2166	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2167	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2168	}	3589	}
2169		3590
2170	=back	3591	=back
2171		3592
2172	=cut	3593	=cut
2173
2174	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281		3594
2282	#############################################################################	3595	#############################################################################
2283	# the server's init and main functions	3596	# the server's init and main functions
2284		3597
		3598	{
		3599	package cf::face;
		3600
		3601	our %HASH; # hash => idx
		3602	our @DATA; # dynamically-created facedata, only faceste 0 used
		3603	our @FOFS; # file offset, if > 0
		3604	our @SIZE; # size of face, in octets
		3605	our @META; # meta hash of face, if any
		3606	our $DATAFH; # facedata filehandle
		3607
		3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
		3611
		3612	my $idx = cf::face::find $name;
		3613
		3614	if ($idx) {
		3615	delete $HASH{cf::face::get_csum $idx};
		3616	} else {
		3617	$idx = cf::face::alloc $name;
		3618	}
		3619
		3620	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3621
		3622	cf::face::set_type $idx, $type;
		3623	cf::face::set_csum $idx, 0, $hash;
		3624
		3625	# we need to destroy the SV itself, not just modify it, as a running ix
		3626	# might hold a reference to it: "delete" achieves that.
		3627	delete $FOFS[0][$idx];
		3628	delete $DATA[0][$idx];
		3629	$DATA[0][$idx] = $data;
		3630	$SIZE[0][$idx] = length $data;
		3631	delete $META[$idx];
		3632	$HASH{$hash} = $idx;#d#
		3633
		3634	$idx
		3635	}
		3636
		3637	sub _get_data($$$) {
		3638	my ($idx, $set, $cb) = @_;
		3639
		3640	if (defined $DATA[$set][$idx]) {
		3641	$cb->($DATA[$set][$idx]);
		3642	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3643	my $size = $SIZE[$set][$idx];
		3644	my $buf;
		3645	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3646	if ($_[0] == $size) {
		3647	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3648	$cb->($buf);
		3649	} else {
		3650	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3651	}
		3652	};
		3653	} else {
		3654	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3655	}
		3656	}
		3657
		3658	# rather ineffient
		3659	sub cf::face::get_data($;$) {
		3660	my ($idx, $set) = @_;
		3661
		3662	_get_data $idx, $set, Coro::rouse_cb;
		3663	Coro::rouse_wait
		3664	}
		3665
		3666	sub cf::face::ix {
		3667	my ($ns, $set, $idx, $pri) = @_;
		3668
		3669	_get_data $idx, $set, sub {
		3670	$ns->ix_send ($idx, $pri, $_[0]);
		3671	};
		3672	}
		3673	}
		3674
		3675	sub load_facedata($) {
		3676	my ($path) = @_;
		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
		3680	trace "loading facedata from $path\n";
		3681
		3682	my $facedata = decode_storable load_file "$path/faceinfo";
		3683
		3684	$facedata->{version} == 2
		3685	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3686
		3687	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3688	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3689
		3690	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3691
		3692	# BEGIN ATOMIC
		3693	# from here on, everything must be atomic - no thread switch allowed
		3694	my $t1 = EV::time;
		3695
		3696	{
		3697	my $faces = $facedata->{faceinfo};
		3698
		3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
		3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
		3703	cf::face::set_visibility $idx, $info->{visibility};
		3704	cf::face::set_magicmap $idx, $info->{magicmap};
		3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3706	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3707	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3708	$cf::face::HASH{$info->{hash64}} = $idx;
		3709	delete $cf::face::META[$idx];
		3710	}
		3711
		3712	while (my ($face, $info) = each %$faces) {
		3713	next unless $info->{smooth};
		3714
		3715	my $idx = cf::face::find $face
		3716	or next;
		3717
		3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
		3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3721	} else {
		3722	error "smooth face '$info->{smooth}' not found for face '$face'";
		3723	}
		3724	}
		3725	}
		3726
		3727	{
		3728	my $anims = $facedata->{animinfo};
		3729
		3730	while (my ($anim, $info) = each %$anims) {
		3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3732	}
		3733
		3734	cf::anim::invalidate_all; # d'oh
		3735	}
		3736
		3737	{
		3738	my $res = $facedata->{resource};
		3739
		3740	while (my ($name, $info) = each %$res) {
		3741	if (defined (my $type = $info->{type})) {
		3742	# TODO: different hash - must free and use new index, or cache ixface data queue
		3743	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3744
		3745	cf::face::set_type $idx, $type;
		3746	cf::face::set_csum $idx, 0, $info->{hash};
		3747	$cf::face::SIZE[0][$idx] = $info->{size};
		3748	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3749	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3750	$cf::face::HASH{$info->{hash}} = $idx;
		3751	} else {
		3752	# $RESOURCE{$name} = $info; # unused
		3753	}
		3754	}
		3755	}
		3756
		3757	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3758
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	# END ATOMIC
		3764
		3765	cf::debug "facedata atomic update time ", EV::time - $t1;
		3766
		3767	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3768
		3769	aio_close $fh if $fh; # close old facedata
		3770
		3771	1
		3772	}
		3773
		3774	register_exticmd fx_want => sub {
		3775	my ($ns, $want) = @_;
		3776
		3777	while (my ($k, $v) = each %$want) {
		3778	$ns->fx_want ($k, $v);
		3779	}
		3780	};
		3781
2285	sub load_resources {	3782	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3783	my $guard = lock_acquire "load_resource_file";
		3784
		3785	my $status = load_resource_file_ $_[0];
		3786	get_slot 0.1, 100;
		3787	cf::arch::commit_load;
		3788
		3789	$status
		3790	}
		3791
		3792	sub reload_exp_table {
		3793	_reload_exp_table;
		3794
		3795	cf::face::set
		3796	"res/exp_table" => FT_RSRC,
		3797	JSON::XS->new->utf8->canonical->encode (
		3798	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3799	);
		3800	}
		3801
		3802	sub reload_materials {
		3803	_reload_materials;
		3804	}
		3805
		3806	sub reload_regions {
		3807	# HACK to clear player env face cache, we need some signal framework
		3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
		3810
		3811	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3812	or die "unable to load regions file\n";
2288	}
2289		3813
2290	sub cfg_load {	3814	for (cf::region::list) {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3815	$_->{match} = qr/$_->{match}/
2292	or return;	3816	if exists $_->{match};
		3817	}
		3818	}
2293		3819
2294	local $/;	3820	sub reload_facedata {
2295	*CFG = YAML::Syck::Load <$fh>;	3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
2296		3824
		3825	sub reload_archetypes {
		3826	load_resource_file "$DATADIR/archetypes"
		3827	or die "unable to load archetypes\n";
		3828
		3829	cf::face::set
		3830	"res/skill_info" => FT_RSRC,
		3831	JSON::XS->new->utf8->canonical->encode (
		3832	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3833	);
		3834
		3835	cf::face::set
		3836	"res/spell_paths" => FT_RSRC,
		3837	JSON::XS->new->utf8->canonical->encode (
		3838	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3839	);
		3840
		3841	# command completion
		3842	my @commands;
		3843
		3844	for (0..cf::arch::skillvec_size - 1) {
		3845	my $skill = cf::arch::skillvec $_;
		3846	my $name = $skill->name;
		3847	my $flags = cf::skill_flags $skill->subtype;
		3848
		3849	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3850	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3851	}
		3852
		3853	cf::client::set_command_face skill => \@commands;
		3854	}
		3855
		3856	sub reload_treasures {
		3857	load_resource_file "$DATADIR/treasures"
		3858	or die "unable to load treasurelists\n";
		3859	}
		3860
		3861	sub reload_sound {
		3862	trace "loading sound config from $DATADIR/sound\n";
		3863
		3864	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3865
		3866	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3867	my $sound = $soundconf->{compat}[$_]
		3868	or next;
		3869
		3870	my $face = cf::face::find "sound/$sound->[1]";
		3871	cf::sound::set $sound->[0] => $face;
		3872	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3873	}
		3874
		3875	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3876	my $face = cf::face::find "sound/$v";
		3877	cf::sound::set $k => $face;
		3878	}
		3879	}
		3880
		3881	sub reload_resources {
		3882	trace "reloading resource files...\n";
		3883
		3884	reload_materials;
		3885	reload_facedata;
		3886	reload_exp_table;
		3887	reload_sound;
		3888	reload_archetypes;
		3889	reload_regions;
		3890	reload_treasures;
		3891
		3892	trace "finished reloading resource files\n";
		3893	}
		3894
		3895	sub reload_config {
		3896	trace "reloading config file...\n";
		3897
		3898	my $config = load_file "$CONFDIR/config";
		3899	utf8::decode $config;
		3900	*CFG = decode_yaml $config;
		3901
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2298		3903
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3904	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3905	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2301		3906
2302	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2306	};	3911	};
2307	warn $@ if $@;	3912	warn $@ if $@;
2308	}	3913	}
2309	}	3914	}
2310		3915
2311	sub init {	3916	sub pidfile() {
2312	load_resources;	3917	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3918	or die "$PIDFILE: $!";
		3919	flock $fh, &Fcntl::LOCK_EX
		3920	or die "$PIDFILE: flock: $!";
		3921	$fh
		3922	}
		3923
		3924	# make sure only one server instance is running at any one time
		3925	sub atomic {
		3926	my $fh = pidfile;
		3927
		3928	my $pid = <$fh>;
		3929	kill 9, $pid if $pid > 0;
		3930
		3931	seek $fh, 0, 0;
		3932	print $fh $$;
		3933	}
		3934
		3935	sub main_loop {
		3936	trace "EV::run starting\n";
		3937	if (1) {
		3938	EV::run;
		3939	}
		3940	trace "EV::run returned\n";
		3941	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3942	}
2314		3943
2315	sub main {	3944	sub main {
		3945	cf::init_globals; # initialise logging
		3946
		3947	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3948	LOG llevInfo, "Copyright (C) 2017-2018 Marc Alexander Lehmann / the Deliantra team.";
		3949	LOG llevInfo, "Copyright (C) 2005-2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3950	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3951	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3952
		3953	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3954
2316	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3957	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3958	(async {
2320	Event::one_event;	3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
2321	})->prio (Coro::PRIO_MAX);	3961	})->prio (Coro::PRIO_MAX);
2322	};	3962	};
2323		3963
2324	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
		3969	db_init;
		3970
		3971	cf::init_anim;
		3972	cf::init_attackmess;
		3973	cf::init_dynamic;
		3974
		3975	cf::load_settings;
		3976
		3977	reload_resources;
		3978	reload_config;
		3979
		3980	cf::init_uuid;
		3981	cf::init_signals;
		3982	cf::init_skills;
		3983
		3984	cf::init_beforeplay;
		3985
		3986	atomic;
		3987
2326	load_extensions;	3988	load_extensions;
2327		3989
2328	$TICK_WATCHER->start;	3990	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3991
		3992	# no (long-running) fork's whatsoever before this point(!)
		3993	use POSIX ();
		3994	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3995
		3996	cf::_post_init 0;
		3997	};
		3998
		3999	cf::object::thawer::errors_are_fatal 0;
		4000	info "parse errors in files are no longer fatal from this point on.\n";
		4001
		4002	AE::postpone {
		4003	undef &main; # free gobs of memory :)
		4004	};
		4005
		4006	goto &main_loop;
2330	}	4007	}
2331		4008
2332	#############################################################################	4009	#############################################################################
2333	# initialisation and cleanup	4010	# initialisation and cleanup
2334		4011
2335	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2336	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2345	},
2346	);	4018	};
		4019	}
		4020	}
		4021
		4022	sub write_runtime_sync {
		4023	my $t0 = AE::time;
		4024
		4025	# first touch the runtime file to show we are still running:
		4026	# the fsync below can take a very very long time.
		4027
		4028	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4029
		4030	my $guard = cf::lock_acquire "write_runtime";
		4031
		4032	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4033	or return;
		4034
		4035	my $value = $cf::RUNTIME + 90 + 10;
		4036	# 10 is the runtime save interval, for a monotonic clock
		4037	# 60 allows for the watchdog to kill the server.
		4038
		4039	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4040	and return;
		4041
		4042	# always fsync - this file is important
		4043	aio_fsync $fh
		4044	and return;
		4045
		4046	# touch it again to show we are up-to-date
		4047	aio_utime $fh, undef, undef;
		4048
		4049	close $fh
		4050	or return;
		4051
		4052	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4053	and return;
		4054
		4055	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4056
2347	}	4057	1
		4058	}
		4059
		4060	our $uuid_lock;
		4061	our $uuid_skip;
		4062
		4063	sub write_uuid_sync($) {
		4064	$uuid_skip ||= $_[0];
		4065
		4066	return if $uuid_lock;
		4067	local $uuid_lock = 1;
		4068
		4069	my $uuid = "$LOCALDIR/uuid";
		4070
		4071	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4072	or return;
		4073
		4074	my $value = uuid_seq uuid_cur;
		4075
		4076	unless ($value) {
		4077	info "cowardly refusing to write zero uuid value!\n";
		4078	return;
		4079	}
		4080
		4081	my $value = uuid_str $value + $uuid_skip;
		4082	$uuid_skip = 0;
		4083
		4084	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4085	and return;
		4086
		4087	# always fsync - this file is important
		4088	aio_fsync $fh
		4089	and return;
		4090
		4091	close $fh
		4092	or return;
		4093
		4094	aio_rename "$uuid~", $uuid
		4095	and return;
		4096
		4097	trace "uuid file written ($value).\n";
		4098
		4099	1
		4100
		4101	}
		4102
		4103	sub write_uuid($$) {
		4104	my ($skip, $sync) = @_;
		4105
		4106	$sync ? write_uuid_sync $skip
		4107	: async { write_uuid_sync $skip };
2348	}	4108	}
2349		4109
2350	sub emergency_save() {	4110	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2352		4112
2353	warn "enter emergency perl save\n";	4113	info "emergency_perl_save: enter\n";
		4114
		4115	# this is a trade-off: we want to be very quick here, so
		4116	# save all maps without fsync, and later call a global sync
		4117	# (which in turn might be very very slow)
		4118	local $USE_FSYNC = 0;
2354		4119
2355	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2356	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	4131	$pl->save;
2364	}	4132	}
2365	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2366		4134
2367	warn "begin emergency map save\n";	4135	cf::write_runtime_sync; # external watchdog should not bark
		4136
		4137	info "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	4140	$map->valid or next;
2371	$map->save;	4141	$map->save;
2372	}	4142	}
2373	warn "end emergency map save\n";	4143	info "emergency_perl_save: end map save\n";
		4144
		4145	cf::write_runtime_sync; # external watchdog should not bark
		4146
		4147	info "emergency_perl_save: begin database checkpoint\n";
		4148	BDB::db_env_txn_checkpoint $DB_ENV;
		4149	info "emergency_perl_save: end database checkpoint\n";
		4150
		4151	info "emergency_perl_save: begin write uuid\n";
		4152	write_uuid_sync 1;
		4153	info "emergency_perl_save: end write uuid\n";
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
		4156
		4157	trace "emergency_perl_save: syncing database to disk";
		4158	BDB::db_env_txn_checkpoint $DB_ENV;
		4159
		4160	info "emergency_perl_save: starting sync\n";
		4161	IO::AIO::aio_sync sub {
		4162	info "emergency_perl_save: finished sync\n";
		4163	};
		4164
		4165	cf::write_runtime_sync; # external watchdog should not bark
		4166
		4167	trace "emergency_perl_save: flushing outstanding aio requests";
		4168	while (IO::AIO::nreqs || BDB::nreqs) {
		4169	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4170	}
		4171
		4172	cf::write_runtime_sync; # external watchdog should not bark
2374	};	4173	};
2375		4174
2376	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2377	}	4176	}
2378		4177
		4178	sub post_cleanup {
		4179	my ($make_core) = @_;
		4180
		4181	IO::AIO::flush;
		4182
		4183	error Carp::longmess "post_cleanup backtrace"
		4184	if $make_core;
		4185
		4186	my $fh = pidfile;
		4187	unlink $PIDFILE if <$fh> == $$;
		4188	}
		4189
		4190	# a safer delete_package, copied from Symbol
		4191	sub clear_package($) {
		4192	my $pkg = shift;
		4193
		4194	# expand to full symbol table name if needed
		4195	unless ($pkg =~ /^main::.*::$/) {
		4196	$pkg = "main$pkg" if $pkg =~ /^::/;
		4197	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4198	$pkg .= '::' unless $pkg =~ /::$/;
		4199	}
		4200
		4201	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4202	my $stem_symtab = *{$stem}{HASH};
		4203
		4204	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4205	or return;
		4206
		4207	# clear all symbols
		4208	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4209	for my $name (keys %$leaf_symtab) {
		4210	_gv_clear *{"$pkg$name"};
		4211	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4212	}
		4213	}
		4214
2379	sub reload() {	4215	sub do_reload_perl() {
2380	# can/must only be called in main	4216	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2382	warn "can only reload from main coroutine";	4218	error "can only reload from main coroutine";
2383	return;	4219	return;
2384	}	4220	}
2385		4221
2386	warn "reloading...";	4222	return if $RELOAD++;
2387		4223
2388	warn "cancelling server ticker";	4224	my $t1 = AE::time;
2389	$TICK_WATCHER->cancel;
2390		4225
		4226	while ($RELOAD) {
		4227	cf::get_slot 0.1, -1, "reload_perl";
		4228	info "perl_reload: reloading...";
		4229
		4230	trace "perl_reload: entering sync_job";
		4231
		4232	cf::sync_job {
2391	cf::emergency_save;	4233	#cf::emergency_save;
2392		4234
2393	eval {
2394	# if anything goes wrong in here, we should simply crash as we already saved
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";
2405	for (;;) {
2406	IO::AIO::flush;
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";	4235	trace "perl_reload: cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	4237	%EXT_CORO = ();
2415		4238
2416	warn "removing commands";	4239	trace "perl_reload: removing commands";
2417	%COMMAND = ();	4240	%COMMAND = ();
2418		4241
2419	warn "removing ext commands";	4242	trace "perl_reload: removing ext/exti commands";
2420	%EXTCMD = ();	4243	%EXTCMD = ();
		4244	%EXTICMD = ();
2421		4245
2422	warn "unloading/nuking all extensions";	4246	trace "perl_reload: unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	4247	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	4248	trace "... unloading $pkg";
2425		4249
2426	if (my $cb = $pkg->can ("unload")) {	4250	if (my $cb = $pkg->can ("unload")) {
2427	eval {	4251	eval {
2428	$cb->($pkg);	4252	$cb->($pkg);
2429	1	4253	1
2430	} or warn "$pkg unloaded, but with errors: $@";	4254	} or error "$pkg unloaded, but with errors: $@";
		4255	}
		4256
		4257	trace "... clearing $pkg";
		4258	clear_package $pkg;
2431	}	4259	}
2432		4260
2433	warn "... nuking $pkg";
2434	Symbol::delete_package $pkg;
2435	}
2436
2437	warn "unloading all perl modules loaded from $LIBDIR";	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2438	while (my ($k, $v) = each %INC) {	4262	while (my ($k, $v) = each %INC) {
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		4264
2441	warn "... unloading $k";	4265	trace "... unloading $k";
2442	delete $INC{$k};	4266	delete $INC{$k};
2443		4267
2444	$k =~ s/\.pm$//;	4268	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;	4269	$k =~ s/\//::/g;
2446		4270
2447	if (my $cb = $k->can ("unload_module")) {	4271	if (my $cb = $k->can ("unload_module")) {
2448	$cb->();	4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2449	}	4276	}
2450		4277
2451	Symbol::delete_package $k;
2452	}
2453
2454	warn "getting rid of safe::, as good as possible";	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4280	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		4281
2458	warn "unloading cf.pm \"a bit\"";	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		4285
2461	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2462	# and global variables created in xs	4287	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2464		4289
2465	warn "unload completed, starting to reload now";	4290	info "perl_reload: unload completed, starting to reload now";
2466		4291
2467	warn "reloading cf.pm";	4292	trace "perl_reload: reloading cf.pm";
2468	require cf;	4293	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2470		4295
2471	warn "loading config and database again";	4296	trace "perl_reload: loading config and database again";
2472	cf::cfg_load;	4297	cf::reload_config;
2473	cf::db_load;
2474		4298
2475	warn "loading extensions";	4299	trace "perl_reload: loading extensions";
2476	cf::load_extensions;	4300	cf::load_extensions;
2477		4301
		4302	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	4303	trace "perl_reload: reattaching attachments to objects/players";
2479	_global_reattach;	4304	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	4305	trace "perl_reload: reattaching attachments to maps";
2481	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
2482		4310
2483	warn "loading reloadable resources";	4311	cf::_post_init 1;
2484	load_resources;
2485		4312
2486	warn "restarting server ticker";	4313	trace "perl_reload: leaving sync_job";
2487		4314
2488	$TICK_WATCHER->start;	4315	1
		4316	} or do {
		4317	error $@;
		4318	cf::cleanup "perl_reload: error, exiting.";
		4319	};
		4320
		4321	--$RELOAD;
		4322	}
		4323
		4324	$t1 = AE::time - $t1;
		4325	info "perl_reload: completed in ${t1}s\n";
		4326	};
		4327
		4328	our $RELOAD_WATCHER; # used only during reload
		4329
		4330	sub reload_perl() {
		4331	# doing reload synchronously and two reloads happen back-to-back,
		4332	# coro crashes during coro_state_free->destroy here.
		4333
		4334	$RELOAD_WATCHER ||= cf::async {
		4335	Coro::AIO::aio_wait cache_extensions;
		4336
		4337	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4338	do_reload_perl;
		4339	undef $RELOAD_WATCHER;
		4340	};
2489	};	4341	};
2490		4342	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		4343
2502	register_command "reload" => sub {	4344	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2504		4346
2505	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	4348	$who->message ("reloading server.");
2507		4349	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	4350	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	4351	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	4352	};
2520	}	4353	}
2521	};	4354	};
2522		4355
2523	unshift @INC, $LIBDIR;	4356	#############################################################################
2524		4357
2525	my $bug_warning = 0;	4358	my $bug_warning = 0;
2526		4359
2527	$TICK_WATCHER = Event->timer (	4360	sub wait_for_tick() {
2528	reentrant => 0,	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2529	parked => 1,	4362
2530	prio => 0,	4363	$WAIT_FOR_TICK->wait;
2531	at => $NEXT_TICK || $TICK,	4364	}
2532	data => WF_AUTOCANCEL,	4365
2533	cb => sub {	4366	sub wait_for_tick_begin() {
		4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4368
		4369	my $signal = new Coro::Signal;
		4370	push @WAIT_FOR_TICK_BEGIN, $signal;
		4371	$signal->wait;
		4372	}
		4373
		4374	sub tick {
2534	if ($Coro::current != $Coro::main) {	4375	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	4377	unless ++$bug_warning > 10;
2537	return;	4378	return;
		4379	}
		4380
		4381	cf::one_tick; # one server iteration
		4382
		4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4384
		4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4387	Coro::async_pool {
		4388	$Coro::current->{desc} = "runtime saver";
		4389	write_runtime_sync
		4390	or error "ERROR: unable to write runtime file: $!";
2538	}	4391	};
		4392	}
2539		4393
2540	$NOW = Event::time;	4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2541		4395	$sig->send;
2542	cf::server_tick; # one server iteration	4396	}
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545
2546	$WAIT_FOR_TICK->broadcast;	4397	$WAIT_FOR_TICK->broadcast;
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2548		4398
2549	Event::sweep;	4399	$LOAD = ($NOW - $TICK_START) / $TICK;
2550	Coro::cede_notself;	4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4401
		4402	if (0) {
		4403	if ($NEXT_TICK) {
		4404	my $jitter = $TICK_START - $NEXT_TICK;
		4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4406	debug "jitter $JITTER\n";#d#
2551		4407	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	4408	}
2561	);	4409	}
2562		4410
2563	{	4411	{
2564	BDB::max_poll_time $TICK * 0.1;	4412	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	4413	info "initialising database";
2566	reentrant => 0,	4414
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	4415	BDB::min_parallel 16;
2574		4416	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	4417	#$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		4418
2590	unless ($DB_ENV) {	4419	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	4420	$DB_ENV = BDB::db_env_create;
		4421	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4422	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4423	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4424	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4425	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		4426
2593	cf::sync_job {	4427	cf::sync_job {
		4428	eval {
2594	BDB::db_env_open	4429	BDB::db_env_open
2595	$DB_ENV,	4430	$DB_ENV,
2596	$BDB_ENV_DIR,	4431	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	4434	0666;
2600		4435
2601	cf::cleanup "$!" if $!;	4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		4437	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	4438
2604	$DB_ENV->set_lk_detect;	4439	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	4440	};
2606	}	4441	}
		4442
		4443	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4444	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4445	};
		4446	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4447	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4448	};
		4449	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4450	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4451	};
		4452
		4453	info "database initialised";
2607	}	4454	}
2608		4455
2609	{	4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
2610	IO::AIO::min_parallel 8;	4460	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	4461	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	4462	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,	4463	info "aio initialised";
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	4464	}
2623		4465
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	4466	our $_log_backtrace;
2625	reentrant => 0,	4467	our $_log_backtrace_last;
2626	data => WF_AUTOCANCEL,	4468
2627	after => 1,	4469	sub _log_backtrace {
2628	interval => 10,	4470	my ($msg, @addr) = @_;
2629	prio => 6, # keep it lowest so it acts like a watchdog	4471
2630	cb => Coro::unblock_sub {	4472	$msg =~ s/\n$//;
2631	write_runtime	4473
2632	or warn "ERROR: unable to write runtime file: $!";	4474	if ($_log_backtrace_last eq $msg) {
		4475	LOG llevInfo, "[ABT] $msg\n";
		4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_log_backtrace < 2) {
		4479	$_log_backtrace_last = $msg;
		4480	++$_log_backtrace;
		4481	my $perl_bt = Carp::longmess $msg;
		4482	async {
		4483	$Coro::current->{desc} = "abt $msg";
		4484
		4485	my @bt = fork_call {
		4486	@addr = map { sprintf "%x", $_ } @addr;
		4487	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4488	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4489	or die "addr2line: $!";
		4490
		4491	my @funcs;
		4492	my @res = <$fh>;
		4493	chomp for @res;
		4494	while (@res) {
		4495	my ($func, $line) = splice @res, 0, 2, ();
		4496	push @funcs, "[$func] $line";
		4497	}
		4498
		4499	@funcs
		4500	};
		4501
		4502	LOG llevInfo, "[ABT] $perl_bt\n";
		4503	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4504	LOG llevInfo, "[ABT] $_\n" for @bt;
		4505	--$_log_backtrace;
		4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2633	},	4510	}
2634	);	4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2635		4516
2636	END { cf::emergency_save }	4517	END { cf::emergency_save }
2637		4518
2638	1	4519	1
2639		4520

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