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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.171 by root, Sun Jan 14 12:24:48 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 3.3 ();	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 ();
		59	use BDB ();
20	use Data::Dumper;	60	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	61	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	62	use YAML::XS ();
25	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
		65	use Compress::LZF;
		66	use Digest::MD5 ();
26		67
27	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" };
28		83
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		85
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	86	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		87
36	our %COMMAND = ();	88	our %COMMAND = ();
37	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
38		90
39	our @EXTS = (); # list of extension package names	91	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
43		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	100	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
46		103
47	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	105
49	our $AIO_POLL_WATCHER;	106	our $DATADIR = datadir;
50	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
51	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;
52	our $NOW;	146	our $NOW;
53		147
54	our %CFG;	148	our (%PLAYER, %PLAYER_LOADING); # all users
55		149	our (%MAP, %MAP_LOADING ); # all maps
56	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;
58
59	our %PLAYER; # all users
60	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	150	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		151
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
		167
70	binmode STDOUT;	168	binmode STDOUT;
71	binmode STDERR;	169	binmode STDERR;
72		170
73	# read virtual server time, if available	171	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
78	}	176	}
79		177
80	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	179
82	mkdir cf::localdir . "/" . cf::tmpdir;	180	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		182
86	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
87		184
		185	sub cf::map::normalise;
		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
88	#############################################################################	191	#############################################################################
89		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
90	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
91		205
92	=over 4	206	=over 4
93		207
94	=item $cf::UPTIME	208	=item $cf::UPTIME
95		209
96	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.
97		226
98	=item $cf::RUNTIME	227	=item $cf::RUNTIME
99		228
100	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
101	every server tick.	230	every server tick.
102		231
103	=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
104		235
105	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		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
108	=item $cf::NOW	247	=item $cf::LOAD
109		248
110	The time of the last (current) server tick.	249	The raw value load value from the last tick.
111
112	=item $cf::TICK
113
114	The interval between server ticks, in seconds.
115		250
116	=item %cf::CFG	251	=item %cf::CFG
117		252
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	254	from wherever your confdir points to.
120		255
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		257
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	258	These are functions that inhibit the current coroutine one tick.
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	259	cf::wait_for_tick_begin only returns directly I<after> the tick
125	processing has been done. Call C<< ->wait >> on them to maximise the	260	processing (and consequently, can only wake one thread per tick), while
126	window of cpu time available, or simply to synchronise to the server tick.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$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.
127		291
128	=back	292	=back
129		293
130	=cut	294	=cut
131		295
132	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
133	*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 {
134	my $msg = join "", @_;	303	my $msg = join "", @_;
135	utf8::encode $msg;
136		304
137	$msg .= "\n"	305	$msg .= "\n"
138	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
139		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
140	LOG llevError, $msg;	310	LOG llevWarn, $msg;
141	};	311	};
142	}	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	};
143		326
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		334
151	# 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
152	# within the Safe compartment.	336	# within the Safe compartment.
153	for my $pkg (qw(	337	for my $pkg (qw(
154	cf::global cf::attachable	338	cf::global cf::attachable
155	cf::object cf::object::player	339	cf::object cf::object::player
156	cf::client cf::player	340	cf::client cf::player
157	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
158	cf::map cf::party cf::region	343	cf::party cf::region
159	)) {	344	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	346	}
163		347
164	$Event::DIED = sub {	348	$EV::DIED = sub {
165	warn "error in event callback: @_";	349	warn "error in event callback: $@";
166	};	350	};
		351
		352	#############################################################################
		353
		354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
167		358
168	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
169		360
170	=over 4	361	=over 4
171		362
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	382	$d
192	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
193	}	384	}
194		385
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
196		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($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
197	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
198		439
199	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
200		441
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
209		443
210	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
211		445
212	=cut	446	=cut
213		447
214	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
216	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	}
217	}	527	}
218		528
219	=item cf::lock_wait $string	529	=item cf::lock_wait $string
220		530
221	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
222		532
223	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
224		534
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
228	returned.	538	returned.
229		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
230	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
231	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
232		545
233	=cut	546	=item $locked = cf::lock_active $string
234		547
235	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
236		553
237	sub lock_wait($) {	554	sub lock_wait($) {
238	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	556	}
246		557
247	sub lock_acquire($) {	558	sub lock_acquire($) {
248	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
249		561
250	# wait, to be sure we are not locked	562	sub lock_active($) {
251	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	564	}
260		565
261	sub freeze_mainloop {	566	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
263		568
264	my $guard = Coro::guard {	569	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	570	}
266	$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($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
267	};	639	}
268	$WRITE_RUNTIME_WATCHER->stop;	640	};
269	$TICK_WATCHER->stop;	641
270	$guard	642	sub get_slot($;$$) {
		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	$sig->wait;
271	}	655	}
272		656
273	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
274		658
275	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		664
281	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
282		666
283	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
284		668
285	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
288		673
289	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
292	fast or be very important.	677	fast or be very important.
…		…
294	=cut	679	=cut
295		680
296	sub sync_job(&) {	681	sub sync_job(&) {
297	my ($job) = @_;	682	my ($job) = @_;
298		683
299	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
300	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
302		689
303	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	691
305	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
306		693
307	my $busy = 1;	694	my $busy = 1;
308	my @res;	695	my @res;
309		696
310	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	699	@res = eval { $job->() };
312	warn $@ if $@;	700	error $@ if $@;
313	undef $busy;	701	undef $busy;
314	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
315		703
316	while ($busy) {	704	while ($busy) {
317	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
318	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
319		715
320	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
321	} else {	717	} else {
322	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
323		719
…		…
343	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
344		740
345	$coro	741	$coro
346	}	742	}
347		743
348	sub write_runtime {	744	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		745
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	746	Executes the given code block with the given arguments in a seperate
352	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.
353		750
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	751	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		752
358	aio_fsync $fh	753	sub post_fork {
359	and return;	754	reset_signals;
		755	}
360		756
361	close $fh	757	sub fork_call(&@) {
362	or return;	758	my ($cb, @args) = @_;
363		759
364	aio_rename "$runtime~", $runtime	760	my @res = Coro::Util::fork_eval {
365	and return;	761	cf::post_fork;
		762	&$cb
		763	} @args;
366		764
		765	wantarray ? @res : $res[-1]
		766	}
		767
		768	sub objinfo {
367	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 });
368	}	943	}
369		944
370	=back	945	=back
371		946
372	=cut	947	=cut
373		948
374	#############################################################################	949	#############################################################################
375		950
376	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
377		952
378	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
379	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")
380	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
381		956
382	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>
383	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
384	crossfire+).	959	Deliantra).
385		960
386	=over 4	961	=over 4
387		962
388	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
389		964
…		…
433	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
434		1009
435	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
437		1012
438	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
439	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.
440		1015
441	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
442		1017
443	=over 4	1018	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
553		1128
554	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		1133
559	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
561		1136
562	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
567		1142
568	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
569	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
570		1145
571	} elsif (ref $type) {	1146	} elsif (ref $type) {
572	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
573		1148
574	} else {	1149	} else {
575	shift @arg;	1150	shift @arg;
576	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
577	}	1152	}
578	}	1153	}
579	}	1154	}
580		1155
581	sub _object_attach {	1156	sub _object_attach {
…		…
591	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
592	}	1167	}
593		1168
594	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
595	} else {	1170	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
597	}	1172	}
598		1173
599	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
600	}	1175	}
601		1176
…		…
603	if (ref $_[0]) {	1178	if (ref $_[0]) {
604	_object_attach @_;	1179	_object_attach @_;
605	} else {	1180	} else {
606	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
607	}	1182	}
		1183	_recalc_want;
608	};	1184	};
609		1185
610	# all those should be optimised	1186	# all those should be optimised
611	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
616	reattach ($obj);	1192	reattach ($obj);
617	} else {	1193	} else {
618	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
619	}	1195	}
		1196	_recalc_want;
620	};	1197	};
621		1198
622	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
624		1201
…		…
639	";	1216	";
640	die if $@;	1217	die if $@;
641	}	1218	}
642		1219
643	our $override;	1220	our $override;
644	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?
645		1222
646	sub override {	1223	sub override {
647	$override = 1;	1224	$override = 1;
648	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
649	}	1226	}
650		1227
651	sub do_invoke {	1228	sub do_invoke {
652	my $event = shift;	1229	my $event = shift;
653	my $callbacks = shift;	1230	my $callbacks = shift;
654		1231
655	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
656		1233
657	local $override;	1234	local $override;
658		1235
659	for (@$callbacks) {	1236	for (@$callbacks) {
660	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
661		1238
662	if ($@) {	1239	if ($@) {
663	warn "$@";
664	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
665	override;	1241	override;
666	}	1242	}
667		1243
668	return 1 if $override;	1244	return 1 if $override;
669	}	1245	}
670		1246
671	0	1247	0
672	}	1248	}
673		1249
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1251
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1253
678	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
679		1255
680	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
681	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
682	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1259
684	=back	1260	=back
685		1261
686	=cut	1262	=cut
687		1263
688	#############################################################################	1264	#############################################################################
689	# 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, $ob2
		1307	}
690		1308
691	sub reattach {	1309	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1311	my ($obj) = @_;
694		1312
		1313	# no longer needed after getting rid of delete_package?
695	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
696		1315
697	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
698		1317
699	@$registry = ();	1318	@$registry = ();
700		1319
…		…
705	for (@$attach) {	1324	for (@$attach) {
706	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
707	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
708	}	1327	}
709	} else {	1328	} else {
710	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
711	}	1330	}
712	}	1331	}
713	}	1332	}
714		1333
715	cf::attachable->attach (	1334	cf::attachable->attach (
716	prio => -1000000,	1335	prio => -1000000,
717	on_instantiate => sub {	1336	on_instantiate => sub {
718	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
719		1338
720	$data = from_json $data;	1339	$data = decode_json $data;
721		1340
722	for (@$data) {	1341	for (@$data) {
723	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
724		1343
725	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1360	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
743		1362
744	sync_job {	1363	sync_job {
745	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
748		1369
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
752	aio_fsync $fh;	1375	aio_fsync $fh;
		1376	}
753	close $fh;	1377	aio_close $fh;
754		1378
755	if (@$objs) {	1379	if (@$objs) {
756	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) {
757	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
		1384	if ($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;
760	aio_fsync $fh;	1386	aio_fsync $fh;
		1387	}
761	close $fh;	1388	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
763	}	1390	}
764	} else {	1391	} else {
765	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
766	}	1393	}
767		1394
768	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1399	} else {
770	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
771	}	1401	}
772	} else {	1402	} else {
773	aio_unlink $filename;	1403	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
775	}	1405	}
776	}	1406	};
777	}	1407	}
778		1408
779	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
781		1411
…		…
793	or return;	1423	or return;
794		1424
795	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
797	or return;	1427	or return;
		1428
798	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
799	}	1431	}
800		1432
		1433	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
803	return ($data, $av);	1438	($data, $av)
804	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
805		1446
806	#############################################################################	1447	#############################################################################
807	# command handling &c	1448	# command handling &c
808		1449
809	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
810		1451
811	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
812	$name.	1453	$name.
813		1454
814	=cut	1455	=cut
…		…
820	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
821		1462
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1464	}
824		1465
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
826		1467
827	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.
828		1473
829	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
830	called.
831		1475
832	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
833		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$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
834	sub register_extcmd {	1498	sub register_extcmd($$) {
835	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
836		1500
837	$EXTCMD{$name} = $cb;	1501	$EXTCMD{$name} = $cb;
838	}	1502	}
839		1503
		1504	sub register_async_extcmd($$) {
		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} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
		1523
840	cf::player->attach (	1524	cf::player->attach (
841	on_command => sub {	1525	on_unknown_command => sub {
842	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
843		1527
844	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
845	or return;	1529	or return;
846		1530
…		…
851	cf::override;	1535	cf::override;
852	},	1536	},
853	on_extcmd => sub {	1537	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
855		1539
856	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1541
858	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1546	$cb->(
861	$pl->ext_reply ($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);
862	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
863	}	1563	}
		1564
864	} else {	1565	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1567	}
867		1568
868	cf::override;	1569	cf::override;
869	},	1570	},
870	);	1571	);
871		1572
		1573	# "readahead" all extensions
872	sub load_extension {	1574	sub cache_extensions {
873	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
874		1576
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
876	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1580	}
900	die $@;
901	}	1581	};
902		1582
903	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;
904	}	1595	}
905		1596
906	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
907	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1606	next unless -r $path;
909	eval {	1607
910	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 $active;
		1679	}
911	1	1680	}
912	} or warn "$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	}
913	}	1693	};
914	}	1694	}
915		1695
916	#############################################################################	1696	#############################################################################
917		1697
		1698	=back
		1699
918	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
919		1701
920	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
921		1703
922	=cut	1704	=cut
923		1705
924	package cf::player;	1706	package cf::player;
925		1707
…		…
927		1709
928	=head3 cf::player	1710	=head3 cf::player
929		1711
930	=over 4	1712	=over 4
931		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
932	=item cf::player::find $login	1728	=item cf::player::find $login
933		1729
934	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
935		1731
936	=cut	1732	=cut
937		1733
938	sub playerdir($) {	1734	sub playerdir($) {
939	cf::localdir	1735	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1737	}
945		1738
946	sub path($) {	1739	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1741
949	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
950	}	1743	}
951		1744
952	sub find_active($) {	1745	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
957		1750
958	sub exists($) {	1751	sub exists($) {
959	my ($login) = @_;	1752	my ($login) = @_;
960		1753
961	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1755	or !aio_stat path $login
963	}	1756	}
964		1757
965	sub find($) {	1758	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1760	my $login = $_[0];
968		1761
969	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
970		1763
971	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
972	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
973	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;
974	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
975	}	1781	}
976	}	1782	}
977	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($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	);
978		1797
979	sub save($) {	1798	sub save($) {
980	my ($pl) = @_;	1799	my ($pl) = @_;
981		1800
982	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
987	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
988		1807
989	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
991		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
992	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
993	Coro::cede;	1817	cf::cede_to_tick;
994	}	1818	}
995		1819
996	sub new($) {	1820	sub new($) {
997	my ($login) = @_;	1821	my ($login) = @_;
998		1822
…		…
1004	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1005		1829
1006	$self	1830	$self
1007	}	1831	}
1008		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
1009	=item $pl->quit_character	1843	=item $pl->quit_character
1010		1844
1011	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1013		1847
1014	=cut	1848	=cut
1015		1849
1016	sub quit_character {	1850	sub quit_character {
1017	my ($pl) = @_;	1851	my ($pl) = @_;
1018		1852
		1853	my $name = $pl->ob->name;
		1854
1019	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1020	$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
1021		1857
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1023	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1025	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1026		1866
1027	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1031	$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
1032	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;
1033	}	1893	}
1034		1894
1035	=item cf::player::list_logins	1895	=item cf::player::list_logins
1036		1896
1037	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
1038	while and may block, so not sync_job-capable, ever.	1898	while and may block, so not sync_job-capable, ever.
1039		1899
1040	=cut	1900	=cut
1041		1901
1042	sub list_logins {	1902	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1903	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1904	or return [];
1045		1905
1046	my @logins;	1906	my @logins;
1047		1907
1048	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") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1052		1918
1053	utf8::decode $login;	1919	utf8::decode $login;
1054	push @logins, $login;	1920	push @logins, $login;
1055	}	1921	}
1056		1922
1057	\@logins	1923	\@logins
1058	}	1924	}
1059		1925
1060	=item $player->maps	1926	=item $player->maps
1061		1927
		1928	=item cf::player::maps $login
		1929
1062	Returns an arrayref of map paths that are private for this	1930	Returns an arrayref of map paths that are private for this
1063	player. May block.	1931	player. May block.
1064		1932
1065	=cut	1933	=cut
1066		1934
1067	sub maps($) {	1935	sub maps($) {
1068	my ($pl) = @_;	1936	my ($pl) = @_;
		1937
		1938	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1939
1070	my $files = aio_readdir playerdir $pl	1940	my $files = aio_readdir playerdir $pl
1071	or return;	1941	or return;
1072		1942
1073	my @paths;	1943	my @paths;
…		…
1075	for (@$files) {	1945	for (@$files) {
1076	utf8::decode $_;	1946	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1947	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1948	next unless /^$PATH_SEP/o;
1079		1949
1080	s/\.map$//;	1950	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1951	}
1083		1952
1084	\@paths	1953	\@paths
1085	}	1954	}
1086		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1088		1961
1089	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1090		1963
1091	=cut	1964	=cut
1092		1965
1093	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1094	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1095		1968
1096	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1970	}
1100		1971
1101	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	}
1102		2002
1103	=back	2003	=back
1104
1105		2004
1106	=head3 cf::map	2005	=head3 cf::map
1107		2006
1108	=over 4	2007	=over 4
1109		2008
…		…
1113		2012
1114	use Fcntl;	2013	use Fcntl;
1115	use Coro::AIO;	2014	use Coro::AIO;
1116		2015
1117	use overload	2016	use overload
1118	'""' => \&as_string;	2017	'""' => \&as_string,
		2018	fallback => 1;
1119		2019
1120	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1122		2022
1123	sub generate_random_map {	2023	sub generate_random_map {
1124	my ($self, $rmp) = @_;	2024	my ($self, $rmp) = @_;
1125		2025
1126	# mit "rum" bekleckern, nicht	2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
1127	$self->_create_random_map (	2028	$self->_create_random_map ($rmp);
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)
1140	}	2029	}
		2030
		2031	=item cf::map->register ($regex, $prio)
		2032
		2033	Register a handler for the map path matching the given regex at the
		2034	givne priority (higher is better, built-in handlers have priority 0, the
		2035	default).
		2036
		2037	=cut
1141		2038
1142	sub register {	2039	sub register {
1143	my (undef, $regex) = @_;	2040	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	2041	my $pkg = caller;
1145		2042
1146	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	2043	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		2044
1149	$EXT_MAP{$pkg} = qr<$regex>;	2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	2046	}
1151		2047
1152	# also paths starting with '/'	2048	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1154		2050
1155	sub thawer_merge {	2051	sub thawer_merge {
		2052	my ($self, $merge) = @_;
		2053
1156	# we have to keep some variables in memory intact	2054	# we have to keep some variables in memory intact
1157	local $_[0]{path};	2055	local $self->{path};
1158	local $_[0]{deny_save};	2056	local $self->{load_path};
1159	local $_[0]{deny_reset};
1160		2057
1161	$_[0]->SUPER::thawer_merge ($_[1]);	2058	$self->SUPER::thawer_merge ($merge);
1162	}	2059	}
1163		2060
1164	sub normalise {	2061	sub normalise {
1165	my ($path, $base) = @_;	2062	my ($path, $base) = @_;
		2063
		2064	$path = "$path"; # make sure it's a string
		2065
		2066	$path =~ s/\.map$//;
1166		2067
1167	# map plan:	2068	# map plan:
1168	#	2069	#
1169	# /! non-realised random map exit (special hack!)	2070	# /! non-realised random map exit (special hack!)
1170	# {... are special paths that are not being touched	2071	# {... are special paths that are not being touched
…		…
1183	$base =~ s{[^/]+/?$}{};	2084	$base =~ s{[^/]+/?$}{};
1184	$path = "$base/$path";	2085	$path = "$base/$path";
1185	}	2086	}
1186		2087
1187	for ($path) {	2088	for ($path) {
1188	redo if s{//}{/};
1189	redo if s{/\.?/}{/};	2089	redo if s{/\.?/}{/};
1190	redo if s{/[^/]+/\.\./}{/};	2090	redo if s{/[^/]+/\.\./}{/};
1191	}	2091	}
1192		2092
1193	$path	2093	$path
…		…
1198		2098
1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2099	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1200		2100
1201	$path = normalise $path, $base;	2101	$path = normalise $path, $base;
1202		2102
1203	for my $pkg (keys %EXT_MAP) {	2103	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1204	if ($path =~ $EXT_MAP{$pkg}) {	2104	if ($path =~ $EXT_MAP{$pkg}[1]) {
1205	my $self = bless cf::map::new, $pkg;	2105	my $self = bless cf::map::new, $pkg;
1206	$self->{path} = $path; $self->path ($path);	2106	$self->{path} = $path; $self->path ($path);
1207	$self->init; # pass $1 etc.	2107	$self->init; # pass $1 etc.
1208	return $self;	2108	return $self;
1209	}	2109	}
1210	}	2110	}
1211		2111
1212	Carp::carp "unable to resolve path '$path'.";	2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
1213	()	2113	()
1214	}	2114	}
1215		2115
		2116	# may re-bless or do other evil things
1216	sub init {	2117	sub init {
1217	my ($self) = @_;	2118	my ($self) = @_;
1218		2119
1219	$self	2120	$self
1220	}	2121	}
…		…
1232		2133
1233	# the original (read-only) location	2134	# the original (read-only) location
1234	sub load_path {	2135	sub load_path {
1235	my ($self) = @_;	2136	my ($self) = @_;
1236		2137
1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2138	"$MAPDIR/$self->{path}.map"
1238	}	2139	}
1239		2140
1240	# the temporary/swap location	2141	# the temporary/swap location
1241	sub save_path {	2142	sub save_path {
1242	my ($self) = @_;	2143	my ($self) = @_;
1243		2144
1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2146	"$TMPDIR/$path.map"
1246	}	2147	}
1247		2148
1248	# the unique path, undef == no special unique path	2149	# the unique path, undef == no special unique path
1249	sub uniq_path {	2150	sub uniq_path {
1250	my ($self) = @_;	2151	my ($self) = @_;
1251		2152
1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2154	"$UNIQUEDIR/$path"
1254	}	2155	}
1255		2156
1256	# and all this just because we cannot iterate over	2157	sub decay_objects {
1257	# all maps in C++...
1258	sub change_all_map_light {
1259	my ($change) = @_;	2158	my ($self) = @_;
1260		2159
1261	$_->change_map_light ($change)	2160	return if $self->{deny_reset};
1262	for grep $_->outdoor, values %cf::MAP;	2161
		2162	$self->do_decay_objects;
1263	}	2163	}
1264		2164
1265	sub unlink_save {	2165	sub unlink_save {
1266	my ($self) = @_;	2166	my ($self) = @_;
1267		2167
…		…
1272		2172
1273	sub load_header_from($) {	2173	sub load_header_from($) {
1274	my ($self, $path) = @_;	2174	my ($self, $path) = @_;
1275		2175
1276	utf8::encode $path;	2176	utf8::encode $path;
1277	aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1278	or return;	2178	or return;
1279		2179
1280	$self->_load_header ($path)	2180	$self->_load_header ($f)
1281	or return;	2181	or return;
1282		2182
		2183	local $MAP_LOADING{$self->{path}} = $self;
		2184	$f->resolve_delayed_derefs;
		2185
1283	$self->{load_path} = $path;	2186	$self->{load_path} = $path;
1284		2187
1285	1	2188	1
1286	}	2189	}
1287		2190
		2191	# used to laod the header of an original map
1288	sub load_orig {	2192	sub load_header_orig {
1289	my ($self) = @_;	2193	my ($self) = @_;
1290		2194
1291	$self->load_header_from ($self->load_path)	2195	$self->load_header_from ($self->load_path)
1292	}	2196	}
1293		2197
		2198	# used to laod the header of an instantiated map
1294	sub load_temp {	2199	sub load_header_temp {
1295	my ($self) = @_;	2200	my ($self) = @_;
1296		2201
1297	$self->load_header_from ($self->save_path)	2202	$self->load_header_from ($self->save_path)
		2203	}
		2204
		2205	# called after loading the header from an instantiated map
		2206	sub prepare_temp {
		2207	my ($self) = @_;
		2208
		2209	$self->last_access ((delete $self->{last_access})
		2210	|| $cf::RUNTIME); #d#
		2211	# safety
		2212	$self->{instantiate_time} = $cf::RUNTIME
		2213	if $self->{instantiate_time} > $cf::RUNTIME;
		2214	}
		2215
		2216	# called after loading the header from an original map
		2217	sub prepare_orig {
		2218	my ($self) = @_;
		2219
		2220	$self->{load_original} = 1;
		2221	$self->{instantiate_time} = $cf::RUNTIME;
		2222	$self->last_access ($cf::RUNTIME);
		2223	$self->instantiate;
1298	}	2224	}
1299		2225
1300	sub load_header {	2226	sub load_header {
1301	my ($self) = @_;	2227	my ($self) = @_;
1302		2228
1303	if ($self->load_temp) {	2229	if ($self->load_header_temp) {
1304	$self->last_access ((delete $self->{last_access})	2230	$self->prepare_temp;
1305	|| $cf::RUNTIME); #d#
1306	# safety
1307	$self->{instantiate_time} = $cf::RUNTIME
1308	if $self->{instantiate_time} > $cf::RUNTIME;
1309	} else {	2231	} else {
1310	$self->load_orig	2232	$self->load_header_orig
1311	or return;	2233	or return;
1312		2234	$self->prepare_orig;
1313	$self->{load_original} = 1;
1314	$self->{instantiate_time} = $cf::RUNTIME;
1315	$self->last_access ($cf::RUNTIME);
1316	$self->instantiate;
1317	}	2235	}
		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 $self->default_region;
1318		2242
1319	1	2243	1
1320	}	2244	}
1321		2245
1322	sub find;	2246	sub find;
1323	sub find {	2247	sub find {
1324	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1325		2249
		2250	cf::cede_to_tick;
		2251
1326	$path = normalise $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1327		2253
		2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1328	cf::lock_wait "map_find:$path";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1329		2256
1330	$cf::MAP{$path} || do {	2257	$cf::MAP{$path} || do {
1331	my $guard = cf::lock_acquire "map_find:$path";
1332	my $map = new_from_path cf::map $path	2258	my $map = new_from_path cf::map $path
1333	or return;	2259	or return;
1334		2260
1335	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1336		2262
1337	$map->load_header	2263	$map->load_header
1338	or return;	2264	or return;
1339		2265
1340	if ($map->should_reset) {	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2267	# doing this can freeze the server in a sync job, obviously
1341	$cf::WAIT_FOR_TICK->wait;	2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1342	$map->reset;	2271	$map->reset;
1343	undef $guard;
1344	$map = find $path	2272	return find $path;
1345	or return;
1346	}	2273	}
1347		2274
1348	$cf::MAP{$path} = $map	2275	$cf::MAP{$path} = $map
1349	}	2276	}
1350	}	2277	}
		2278
		2279	sub pre_load { }
		2280	#sub post_load { } # XS
1351		2281
1352	sub load {	2282	sub load {
1353	my ($self) = @_;	2283	my ($self) = @_;
1354		2284
		2285	local $self->{deny_reset} = 1; # loading can take a long time
		2286
1355	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1356	my $guard = cf::lock_acquire "map_load:$path";	2290	my $guard = cf::lock_acquire "map_data:$path";
1357		2291
1358	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1359		2294
1360	$self->in_memory (cf::MAP_LOADING);
1361
1362	$self->alloc;	2295	$self->alloc;
1363	$self->_load_objects ($self->{load_path}, 1)	2296
		2297	$self->pre_load;
		2298	cf::cede_to_tick;
		2299
		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)
1364	or return;	2304	or return;
1365		2305
1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1367	if delete $self->{load_original};	2307	if delete $self->{load_original};
1368		2308
1369	if (my $uniq = $self->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1370	utf8::encode $uniq;	2310	utf8::encode $uniq;
1371	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1372	$self->clear_unique_items;	2313	$self->clear_unique_items;
1373	$self->_load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1374	}	2318	}
1375	}
1376		2319
1377	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1378		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1379	# now do the right thing for maps	2329	# now do the right thing for maps
1380	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1381
1382	unless ($self->{deny_activate}) {
1383	$self->decay_objects;
1384	$self->fix_auto_apply;
1385	$self->update_buttons;
1386	Coro::cede;
1387	$self->set_darkness_map;
1388	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1389	unless $self->difficulty;	2332	unless $self->difficulty;
1390	Coro::cede;	2333	cf::cede_to_tick;
1391	$self->activate;	2334
		2335	unless ($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);
		2345	}
		2346
		2347	$self->post_load;
		2348
1392	}	2349	1
1393
1394	$self->in_memory (cf::MAP_IN_MEMORY);
1395	}	2350	}
1396		2351
		2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
1397	sub customise_for {	2355	sub customise_for {
1398	my ($self, $ob) = @_;	2356	my ($self, $ob) = @_;
1399		2357
1400	return find "~" . $ob->name . "/" . $self->{path}	2358	return find "~" . $ob->name . "/" . $self->{path}
1401	if $self->per_player;	2359	if $self->per_player;
1402		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
1403	$self	2364	$self
1404	}
1405
1406	# find and load all maps in the 3x3 area around a map
1407	sub load_diag {
1408	my ($map) = @_;
1409
1410	my @diag; # diagonal neighbours
1411
1412	for (0 .. 3) {
1413	my $neigh = $map->tile_path ($_)
1414	or next;
1415	$neigh = find $neigh, $map
1416	or next;
1417	$neigh->load;
1418
1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1421	}
1422
1423	for (@diag) {
1424	my $neigh = find @$_
1425	or next;
1426	$neigh->load;
1427	}
1428	}	2365	}
1429		2366
1430	sub find_sync {	2367	sub find_sync {
1431	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1432		2369
1433	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, $origin
1434	}	2375	}
1435		2376
1436	sub do_load_sync {	2377	sub do_load_sync {
1437	my ($map) = @_;	2378	my ($map) = @_;
1438		2379
1439	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;
1440	}	2385	}
1441		2386
1442	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
1443	our $MAP_PREFETCHER = Coro::async {	2388	our $MAP_PREFETCHER = undef;
1444	while () {
1445	for my $path (keys %MAP_PREFETCH) {
1446	my $map = find $path
1447	or next;
1448	$map->load;
1449
1450	delete $MAP_PREFETCH{$path};
1451	}
1452	Coro::schedule;
1453	}
1454	};
1455		2389
1456	sub find_async {	2390	sub find_async {
1457	my ($path, $origin) = @_;	2391	my ($path, $origin, $load) = @_;
1458		2392
1459	$path = normalise $path, $origin && $origin->{path};	2393	$path = normalise $path, $origin;
1460		2394
1461	if (my $map = $cf::MAP{$path}) {	2395	if (my $map = $cf::MAP{$path}) {
1462	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2396	return $map if !$load || $map->linkable;
		2397	}
		2398
		2399	$MAP_PREFETCH{$path} |= $load;
		2400
		2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
		2404	while (%MAP_PREFETCH) {
		2405	for my $k (keys %MAP_PREFETCH) {
		2406	if (my $map = find $k) {
		2407	$map->load if $MAP_PREFETCH{$k};
		2408	}
		2409
		2410	delete $MAP_PREFETCH{$k};
		2411	}
		2412	}
		2413	undef $MAP_PREFETCHER;
1463	}	2414	};
1464
1465	$MAP_PREFETCH{$path} = 0;
1466	$MAP_PREFETCHER->ready;	2415	$MAP_PREFETCHER->prio (6);
1467		2416
1468	()	2417	()
1469	}	2418	}
1470		2419
		2420	# common code, used by both ->save and ->swapout
1471	sub save {	2421	sub _save {
1472	my ($self) = @_;	2422	my ($self) = @_;
1473
1474	my $lock = cf::lock_acquire "map_data:" . $self->path;
1475		2423
1476	$self->{last_save} = $cf::RUNTIME;	2424	$self->{last_save} = $cf::RUNTIME;
1477		2425
1478	return unless $self->dirty;	2426	return unless $self->dirty;
1479		2427
…		…
1485	return if $self->{deny_save};	2433	return if $self->{deny_save};
1486		2434
1487	local $self->{last_access} = $self->last_access;#d#	2435	local $self->{last_access} = $self->last_access;#d#
1488		2436
1489	cf::async {	2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
1490	$_->contr->save for $self->players;	2439	$_->contr->save for $self->players;
1491	};	2440	};
		2441
		2442	cf::get_slot 0.02;
1492		2443
1493	if ($uniq) {	2444	if ($uniq) {
1494	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1496	} else {	2447	} else {
1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1498	}	2449	}
1499	}	2450	}
1500		2451
		2452	sub save {
		2453	my ($self) = @_;
		2454
		2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2456
		2457	$self->_save;
		2458	}
		2459
1501	sub swap_out {	2460	sub swap_out {
1502	my ($self) = @_;	2461	my ($self) = @_;
1503		2462
1504	# save first because save cedes
1505	$self->save;
1506
1507	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1508		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1509	return if $self->players;	2467	return if $self->players;
1510	return if $self->in_memory != cf::MAP_IN_MEMORY;
1511	return if $self->{deny_save};
1512		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
1513	$self->clear;	2478	$self->clear;
1514	$self->in_memory (cf::MAP_SWAPPED);
1515	}	2479	}
1516		2480
1517	sub reset_at {	2481	sub reset_at {
1518	my ($self) = @_;	2482	my ($self) = @_;
1519		2483
1520	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
1522	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1523		2486
1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1525	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1526		2489
…		…
1531	my ($self) = @_;	2494	my ($self) = @_;
1532		2495
1533	$self->reset_at <= $cf::RUNTIME	2496	$self->reset_at <= $cf::RUNTIME
1534	}	2497	}
1535		2498
1536	sub rename {
1537	my ($self, $new_path) = @_;
1538
1539	normalise $new_path;
1540
1541	$self->unlink_save;
1542
1543	delete $cf::MAP{$self->path};
1544	$self->{path} = $new_path; $self->path ($self->{path});
1545	$cf::MAP{$self->path} = $self;
1546
1547	$self->save;
1548	}
1549
1550	sub reset {	2499	sub reset {
1551	my ($self) = @_;	2500	my ($self) = @_;
1552		2501
1553	my $lock = cf::lock_acquire "map_data:$self->{path}";	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2503
1555	return if $self->players;	2504	return if $self->players;
1556	return if $self->isa ("ext::map_per_player");#d#
1557		2505
1558	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	}
1559		2517
1560	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1561		2519
1562	$self->in_memory (cf::MAP_SWAPPED);	2520	$self->deactivate;
		2521	$_->clear_links_to ($self) for values %cf::MAP;
1563	$self->clear;	2522	$self->clear;
1564
1565	$_->clear_links_to ($self) for values %cf::MAP;
1566		2523
1567	$self->unlink_save;	2524	$self->unlink_save;
1568	$self->destroy;	2525	$self->destroy;
1569	}	2526	}
1570		2527
1571	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1572		2529
1573	sub nuke {	2530	sub nuke {
1574	my ($self) = @_;	2531	my ($self) = @_;
1575		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
		2536	delete $cf::MAP{$self->path};
		2537
		2538	$self->unlink_save;
		2539
		2540	bless $self, "cf::map::wrap";
		2541	delete $self->{deny_reset};
1576	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1577	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1578	$self->rename ("{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2545
		2546	$cf::MAP{$self->path} = $self;
		2547	}
		2548
1579	$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	]
1580	}	2586	}
1581		2587
1582	=item cf::map::unique_maps	2588	=item cf::map::unique_maps
1583		2589
1584	Returns an arrayref of paths of all shared maps that have	2590	Returns an arrayref of paths of all shared maps that have
1585	instantiated unique items. May block.	2591	instantiated unique items. May block.
1586		2592
1587	=cut	2593	=cut
1588		2594
1589	sub unique_maps() {	2595	sub unique_maps() {
1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2596	[
1591	or return;	2597	map {
1592
1593	my @paths;
1594
1595	for (@$files) {
1596	utf8::decode $_;	2598	utf8::decode $_;
1597	next if /\.pst$/;	2599	s/\.map$//; # TODO future compatibility hack
1598	next unless /^$PATH_SEP/o;	2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2601	? ()
		2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
		2604	]
		2605	}
1599		2606
		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) {
1600	s/\.map$//;	2628	s/\.map$// or next;
1601	push @paths, $_;	2629	utf8::decode $_;
1602	}	2630	push @maps, "$dir/$_";
		2631	}
1603		2632
1604	\@paths	2633	push @dirs, map "$dir/$_", @$dirs;
1605	}	2634	}
1606		2635
1607	package cf;	2636	\@maps
		2637	}
1608		2638
1609	=back	2639	=back
1610		2640
1611	=head3 cf::object	2641	=head3 cf::object
1612		2642
…		…
1616		2646
1617	=over 4	2647	=over 4
1618		2648
1619	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1620		2650
1621	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.
1622		2653
1623	=cut	2654	=cut
1624		2655
1625	sub inv_recursive_;	2656	sub inv_recursive_;
1626	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1629		2660
1630	sub inv_recursive {	2661	sub inv_recursive {
1631	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1632	}	2663	}
1633		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
1634	package cf;	2693	package cf;
1635		2694
1636	=back	2695	=back
1637		2696
1638	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1644	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>
1645	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
1646	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1647		2706
1648	=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	};
1649		2722
1650	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1651	# with dialog boxes.	2724	# with dialog boxes.
1652	#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
1653	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1655		2728
1656	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1657		2730
1658	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1659	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1660	} 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 {
1661	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1662	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1663	}	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 (@_);
1664	}	2756	}
1665		2757
1666	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1667		2759
1668	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1669	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1670		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1671	=cut	2788	=cut
1672		2789
1673	sub cf::object::player::may {	2790	sub cf::object::player::may {
1674	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1675		2792
1676	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1677	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1678	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1679	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1680	}	2797	}
1681		2798
1682	=item $player_object->enter_link	2799	=item $player_object->enter_link
1683		2800
1684	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}>).
1685		2802
1686	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.
1687	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.
1688		2807
1689	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.
1690		2815
1691	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1692		2817
1693	Moves the player out of the special C<{link}> map onto the specified	2818	Moves the player out of the special C<{link}> map onto the specified
1694	map. If the map is not valid (or omitted), the player will be moved back	2819	map. If the map is not valid (or omitted), the player will be moved back
…		…
1700	=cut	2825	=cut
1701		2826
1702	sub link_map {	2827	sub link_map {
1703	unless ($LINK_MAP) {	2828	unless ($LINK_MAP) {
1704	$LINK_MAP = cf::map::find "{link}"	2829	$LINK_MAP = cf::map::find "{link}"
1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2830	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1706	$LINK_MAP->load;	2831	$LINK_MAP->load;
1707	}	2832	}
1708		2833
1709	$LINK_MAP	2834	$LINK_MAP
1710	}	2835	}
…		…
1712	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1713	my ($self) = @_;	2838	my ($self) = @_;
1714		2839
1715	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1716		2841
		2842	++$self->{_link_recursion};
		2843
1717	return if UNIVERSAL::isa $self->map, "ext::map_link";	2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1718		2845
1719	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1720	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1721		2848
1722	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1723	}	2850	}
1724		2851
1725	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1726	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1727		2856
1728	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1729		2858
1730	unless ($map) {	2859	unless ($map) {
1731	# restore original map position	2860	# restore original map position
…		…
1742	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1743	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1744		2873
1745	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1746	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1747	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1748		2877
1749	$map->load;	2878	$map->load;
1750	$map->load_diag;
1751		2879
1752	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
1753	$self->activate_recursive;	2887	$self->activate_recursive;
1754	$self->enter_map ($map, $x, $y);
1755	}
1756
1757	cf::player->attach (
1758	on_logout => sub {
1759	my ($pl) = @_;
1760
1761	# abort map switching before logout
1762	if ($pl->ob->{_link_pos}) {
1763	cf::sync_job {
1764	$pl->ob->leave_link
1765	};
1766	}
1767	},	2888	}
1768	on_login => sub {
1769	my ($pl) = @_;
1770		2889
1771	# try to abort aborted map switching on player login :)	2890	}
1772	# should happen only on crashes
1773	if ($pl->ob->{_link_pos}) {
1774	$pl->ob->enter_link;
1775	(async {
1776	# we need this sleep as the login has a concurrent enter_exit running
1777	# and this sleep increases chances of the player not ending up in scorn
1778	$pl->ob->reply (undef,
1779	"There was an internal problem at your last logout, "
1780	. "the server will try to bring you to your intended destination in a second.",
1781	cf::NDI_RED);
1782	Coro::Timer::sleep 1;
1783	$pl->ob->leave_link;
1784	})->prio (2);
1785	}
1786	},
1787	);
1788		2891
1789	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1790		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
1791	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1792		2906
1793	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1794	my ($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;
1795		2918
1796	$self->enter_link;	2919	$self->enter_link;
1797		2920
1798	(async {	2921	(async {
1799	my $map = cf::map::find $path;	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
		2943	my $map = eval {
		2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1800	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
1801		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
1802	# warn "entering ", $map->path, " at ($x, $y)\n"	2949	} else {
1803	# if $map;
1804
1805	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
1806		2952
		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 $@;
		2959	}
		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1807	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1808	})->prio (1);	2967	})->prio (1);
1809	}	2968	}
1810		2969
1811	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1812		2971
…		…
1814		2973
1815	sub parse_random_map_params {	2974	sub parse_random_map_params {
1816	my ($spec) = @_;	2975	my ($spec) = @_;
1817		2976
1818	my $rmp = { # defaults	2977	my $rmp = { # defaults
1819	xsize => 10,	2978	xsize => (cf::rndm 15, 40),
1820	ysize => 10,	2979	ysize => (cf::rndm 15, 40),
		2980	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2981	#layout => string,
1821	};	2982	};
1822		2983
1823	for (split /\n/, $spec) {	2984	for (split /\n/, $spec) {
1824	my ($k, $v) = split /\s+/, $_, 2;	2985	my ($k, $v) = split /\s+/, $_, 2;
1825		2986
…		…
1837	# that depends on the exit object	2998	# that depends on the exit object
1838		2999
1839	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
1840		3001
1841	if ($exit->map) {	3002	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	3003	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1846	}	3009	}
1847		3010
1848	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1849		3012
1850	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1851	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
		3015	my $meta = "$RANDOMDIR/$md5.meta";
1852		3016
1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1854	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
		3019	undef $fh;
		3020	aio_rename "$meta~", $meta;
1855		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1856	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1857	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1858	}	3028	}
1859	}	3029	}
1860		3030
1861	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1862	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
…		…
1864	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1865		3035
1866	$self->enter_link;	3036	$self->enter_link;
1867		3037
1868	(async {	3038	(async {
1869	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1870	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
1871	prepare_random_map $exit	3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
1872	if $exit->slaying eq "/!";	3058	$map = $exit->slaying;
1873		3059
1874	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	3060	} elsif ($slaying eq '!up') {
1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
1876		3064
		3065	} elsif ($slaying eq '!down') {
		3066	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3067	$x = $exit->x;
		3068	$y = $exit->y;
		3069	}
		3070
		3071	$self->goto ($map, $x, $y);
		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
1877	1;	3077	1
1878	}) {	3078	}) {
1879	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1880	. "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. "
1881	. "Please report this to the dungeon master!",	3081	. "Please report this to the dungeon master!",
1882	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1883		3083
1884	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1885	$self->leave_link;	3085	$self->leave_link;
1886	}	3086	}
1887	})->prio (1);	3087	})->prio (1);
1888	}	3088	}
1889		3089
1890	=head3 cf::client	3090	=head3 cf::client
1891		3091
1892	=over 4	3092	=over 4
1893		3093
1894	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1895		3095
1896	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1897	should not be used under normal circumstances.	3097	them as required.
1898		3098
1899	=cut	3099	=cut
1900		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" => $CHAT_CHANNEL,
		3246	);
		3247
1901	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($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($$@) {
1902	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1903		3295
1904	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1905	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1906	}	3297	}
1907
1908		3298
1909	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1910		3300
1911	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1912	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>,
1913	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>.
1914		3304
1915	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
1916	reliable at some point in the future.	3306	become reliable at some point in the future.
1917		3307
1918	=cut	3308	=cut
1919		3309
1920	sub cf::client::query {	3310	sub cf::client::query {
1921	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
1929	utf8::encode $text;	3319	utf8::encode $text;
1930	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1931		3321
1932	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
1933	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;
1934	}	3365	}
1935		3366
1936	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	},
1937	on_reply => sub {	3373	on_reply => sub {
1938	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
1939		3375
1940	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
1941	# get handled first	3377	# get handled first
1942	my $queue = delete $ns->{query_queue}	3378	my $queue = delete $ns->{query_queue}
1943	or return; # be conservative, not sure how that can happen, but we saw a crash here	3379	or return; # be conservative, not sure how that can happen, but we saw a crash here
1944		3380
1945	(shift @$queue)->[1]->($msg);	3381	(shift @$queue)->[1]->($msg);
		3382	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1946		3383
1947	push @{ $ns->{query_queue} }, @$queue;	3384	push @{ $ns->{query_queue} }, @$queue;
1948		3385
1949	if (@{ $ns->{query_queue} } == @$queue) {	3386	if (@{ $ns->{query_queue} } == @$queue) {
1950	if (@$queue) {	3387	if (@$queue) {
…		…
1952	} else {	3389	} else {
1953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1954	}	3391	}
1955	}	3392	}
1956	},	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	},
1957	);	3427	);
1958		3428
1959	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
1960		3430
1961	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
1977		3447
1978	$coro	3448	$coro
1979	}	3449	}
1980		3450
1981	cf::client->attach (	3451	cf::client->attach (
1982	on_destroy => sub {	3452	on_client_destroy => sub {
1983	my ($ns) = @_;	3453	my ($ns) = @_;
1984		3454
1985	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1986	},	3456	},
1987	);	3457	);
…		…
2002	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2003	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2004		3474
2005	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2006		3476
2007	$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	));
2008		3482
2009	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2010		3484
2011	=pod	3485	=pod
2012		3486
2013	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2014		3488
2015	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
2016	cf::object::player player	3494	cf::object::player
2017	cf::player peaceful	3495	player
2018	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2019		3502
2020	=cut	3503	=cut
2021		3504
2022	for (	3505	for (
2023	["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)],
2024	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2025	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2026	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2027	) {	3512	) {
2028	no strict 'refs';
2029	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2030	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2031	for @funs;	3515	for @funs;
2032	}	3516	}
2033		3517
…		…
2048		3532
2049	my $qcode = $code;	3533	my $qcode = $code;
2050	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2051	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2052		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2053	local $_;	3540	local $_;
2054	local @safe::cf::_safe_eval_args = values %vars;
2055		3541
2056	my $eval =	3542	my $eval =
2057	"do {\n"	3543	"do {\n"
2058	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2059	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2060	. $code	3546	. $code
2061	. "\n}"	3547	. "\n}"
2062	;	3548	;
2063		3549
		3550	if ($CFG{safe_eval}) {
2064	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2065	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2066	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	}
2067		3559
2068	if ($@) {	3560	if ($@) {
2069	warn "$@";	3561	warn "$@",
2070	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2071	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2072	}	3564	}
2073		3565
2074	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2075	}	3567	}
2076		3568
…		…
2090	=cut	3582	=cut
2091		3583
2092	sub register_script_function {	3584	sub register_script_function {
2093	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2094		3586
2095	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2096	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2097	}	3589	}
2098		3590
2099	=back	3591	=back
2100		3592
2101	=cut	3593	=cut
2102		3594
2103	#############################################################################	3595	#############################################################################
2104		3596	# the server's init and main functions
2105	=head2 EXTENSION DATABASE SUPPORT
2106
2107	Crossfire maintains a very simple database for extension use. It can
2108	currently store anything that can be serialised using Storable, which
2109	excludes objects.
2110
2111	The parameter C<$family> should best start with the name of the extension
2112	using it, it should be unique.
2113
2114	=over 4
2115
2116	=item $hashref = cf::db_get $family
2117
2118	Return a hashref for use by the extension C<$family>, which can be
2119	modified. After modifications, you have to call C<cf::db_dirty> or
2120	C<cf::db_sync>.
2121
2122	=item $value = cf::db_get $family => $key
2123
2124	Returns a single value from the database
2125
2126	=item cf::db_put $family => $hashref
2127
2128	Stores the given family hashref into the database. Updates are delayed, if
2129	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2130
2131	=item cf::db_put $family => $key => $value
2132
2133	Stores the given C<$value> in the family hash. Updates are delayed, if you
2134	want the data to be synced to disk immediately, use C<cf::db_sync>.
2135
2136	=item cf::db_dirty
2137
2138	Marks the database as dirty, to be updated at a later time.
2139
2140	=item cf::db_sync
2141
2142	Immediately write the database to disk I<if it is dirty>.
2143
2144	=cut
2145
2146	our $DB;
2147		3597
2148	{	3598	{
2149	my $path = cf::localdir . "/database.pst";	3599	package cf::face;
2150		3600
2151	sub db_load() {	3601	our %HASH; # hash => idx
2152	$DB = stat $path ? Storable::retrieve $path : { };	3602	our @DATA; # dynamically-created facedata, only faceste 0 used
2153	}	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
2154		3607
2155	my $pid;	3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
2156		3611
2157	sub db_save() {	3612	my $idx = cf::face::find $name;
2158	waitpid $pid, 0 if $pid;
2159	if (0 == ($pid = fork)) {
2160	$DB->{_meta}{version} = 1;
2161	Storable::nstore $DB, "$path~";
2162	rename "$path~", $path;
2163	cf::_exit 0 if defined $pid;
2164	}
2165	}
2166		3613
2167	my $dirty;	3614	if ($idx) {
2168		3615	delete $HASH{cf::face::get_csum $idx};
2169	sub db_sync() {
2170	db_save if $dirty;
2171	undef $dirty;
2172	}
2173
2174	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2175	db_sync;
2176	});
2177
2178	sub db_dirty() {
2179	$dirty = 1;
2180	$idle->start;
2181	}
2182
2183	sub db_get($;$) {
2184	@_ >= 2
2185	? $DB->{$_[0]}{$_[1]}
2186	: ($DB->{$_[0]} ||= { })
2187	}
2188
2189	sub db_put($$;$) {
2190	if (@_ >= 3) {
2191	$DB->{$_[0]}{$_[1]} = $_[2];
2192	} else {	3616	} else {
2193	$DB->{$_[0]} = $_[1];	3617	$idx = cf::face::alloc $name;
2194	}
2195	db_dirty;
2196	}
2197
2198	cf::global->attach (
2199	prio => 10000,
2200	on_cleanup => sub {
2201	db_sync;
2202	},	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
		3782	sub load_resource_file($) {
		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]
2203	);	3799	);
2204	}	3800	}
2205		3801
2206	#############################################################################	3802	sub reload_materials {
2207	# the server's main()	3803	_reload_materials;
		3804	}
2208		3805
2209	sub cfg_load {	3806	sub reload_regions {
2210	open my $fh, "<:utf8", cf::confdir . "/config"	3807	# HACK to clear player env face cache, we need some signal framework
2211	or return;	3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
2212		3810
2213	local $/;	3811	load_resource_file "$MAPDIR/regions"
2214	*CFG = YAML::Syck::Load <$fh>;	3812	or die "unable to load regions file\n";
2215		3813
		3814	for (cf::region::list) {
		3815	$_->{match} = qr/$_->{match}/
		3816	if exists $_->{match};
		3817	}
		3818	}
		3819
		3820	sub reload_facedata {
		3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
		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
2216	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2217		3903
2218	$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};
2219	$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};
2220		3906
2221	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2225	};	3911	};
2226	warn $@ if $@;	3912	warn $@ if $@;
2227	}	3913	}
2228	}	3914	}
2229		3915
		3916	sub pidfile() {
		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;
		3942	}
		3943
2230	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
2231	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2232	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2233	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#
2234	async { Event::one_event };	3958	(async {
		3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
		3961	})->prio (Coro::PRIO_MAX);
2235	};	3962	};
2236		3963
2237	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
2238	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
2239	load_extensions;	3988	load_extensions;
2240	Event::loop;	3989
		3990	utime time, time, $RUNTIMEFILE;
		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;
2241	}	4007	}
2242		4008
2243	#############################################################################	4009	#############################################################################
2244	# initialisation and cleanup	4010	# initialisation and cleanup
2245		4011
2246	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2247	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2248	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2249	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2250	data => WF_AUTOCANCEL,
2251	signal => $signal,
2252	cb => sub {
2253	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2254	},
2255	);	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
2256	}	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 };
2257	}	4108	}
2258		4109
2259	sub emergency_save() {	4110	sub emergency_save() {
2260	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2261		4112
2262	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;
2263		4119
2264	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2265	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2266	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2267	# and maps saved/destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2268	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2269	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2270	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2271	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2272	$pl->save;	4131	$pl->save;
2273	}	4132	}
2274	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2275		4134
2276	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";
2277	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2278	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2279	$map->valid or next;	4140	$map->valid or next;
2280	$map->save;	4141	$map->save;
2281	}	4142	}
2282	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
2283	};	4173	};
2284		4174
2285	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2286	}	4176	}
2287		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
2288	sub reload() {	4215	sub do_reload_perl() {
2289	# can/must only be called in main	4216	# can/must only be called in main
2290	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2291	warn "can only reload from main coroutine\n";	4218	error "can only reload from main coroutine";
2292	return;	4219	return;
2293	}	4220	}
2294		4221
2295	warn "reloading...";	4222	return if $RELOAD++;
2296		4223
2297	warn "freezing server";	4224	my $t1 = AE::time;
2298	my $guard = freeze_mainloop;	4225
		4226	while ($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 {
2299	cf::emergency_save;	4233	#cf::emergency_save;
2300		4234
2301	warn "sync database to disk";	4235	trace "perl_reload: cancelling all extension coros";
2302	cf::db_sync;
2303	IO::AIO::flush;
2304
2305	eval {
2306	# if anything goes wrong in here, we should simply crash as we already saved
2307
2308	warn "cancel all watchers";
2309	for (Event::all_watchers) {
2310	$_->cancel if $_->data & WF_AUTOCANCEL;
2311	}
2312
2313	warn "cancel all extension coros";
2314	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2315	%EXT_CORO = ();	4237	%EXT_CORO = ();
2316		4238
2317	warn "remove commands";	4239	trace "perl_reload: removing commands";
2318	%COMMAND = ();	4240	%COMMAND = ();
2319		4241
2320	warn "remove ext commands";	4242	trace "perl_reload: removing ext/exti commands";
2321	%EXTCMD = ();	4243	%EXTCMD = ();
		4244	%EXTICMD = ();
2322		4245
2323	warn "unload/nuke all extensions";	4246	trace "perl_reload: unloading/nuking all extensions";
2324	for my $pkg (@EXTS) {	4247	for my $pkg (@EXTS) {
2325	warn "... unloading $pkg";	4248	trace "... unloading $pkg";
2326		4249
2327	if (my $cb = $pkg->can ("unload")) {	4250	if (my $cb = $pkg->can ("unload")) {
2328	eval {	4251	eval {
2329	$cb->($pkg);	4252	$cb->($pkg);
2330	1	4253	1
2331	} 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;
2332	}	4259	}
2333		4260
2334	warn "... nuking $pkg";
2335	Symbol::delete_package $pkg;
2336	}
2337
2338	warn "unload all perl modules loaded from $LIBDIR";	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2339	while (my ($k, $v) = each %INC) {	4262	while (my ($k, $v) = each %INC) {
2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2341		4264
2342	warn "removing <$k>";	4265	trace "... unloading $k";
2343	delete $INC{$k};	4266	delete $INC{$k};
2344		4267
2345	$k =~ s/\.pm$//;	4268	$k =~ s/\.pm$//;
2346	$k =~ s/\//::/g;	4269	$k =~ s/\//::/g;
2347		4270
2348	if (my $cb = $k->can ("unload_module")) {	4271	if (my $cb = $k->can ("unload_module")) {
2349	$cb->();	4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2350	}	4276	}
2351		4277
2352	Symbol::delete_package $k;
2353	}
2354
2355	warn "get rid of safe::, as good as possible";	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2356	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2357	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);
2358		4281
2359	warn "unload cf.pm \"a bit\"";	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2360	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2361		4285
2362	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2363	# and global variables created in xs	4287	# and global variables created in xs
2364	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2365		4289
2366	warn "reloading cf.pm";	4290	info "perl_reload: unload completed, starting to reload now";
		4291
		4292	trace "perl_reload: reloading cf.pm";
2367	require cf;	4293	require cf;
2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2369		4295
2370	warn "load config and database again";	4296	trace "perl_reload: loading config and database again";
2371	cf::cfg_load;	4297	cf::reload_config;
2372	cf::db_load;
2373		4298
2374	warn "load extensions";	4299	trace "perl_reload: loading extensions";
2375	cf::load_extensions;	4300	cf::load_extensions;
2376		4301
		4302	if ($REATTACH_ON_RELOAD) {
2377	warn "reattach attachments to objects/players";	4303	trace "perl_reload: reattaching attachments to objects/players";
2378	_global_reattach;	4304	_global_reattach; # objects, sockets
2379	warn "reattach attachments to maps";	4305	trace "perl_reload: reattaching attachments to maps";
2380	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
		4310
		4311	cf::_post_init 1;
		4312
		4313	trace "perl_reload: leaving sync_job";
		4314
		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 $RELOAD_WATCHER;
		4340	};
2381	};	4341	};
2382		4342	}
2383	if ($@) {
2384	warn $@;
2385	warn "error while reloading, exiting.";
2386	exit 1;
2387	}
2388
2389	warn "reloaded";
2390	};
2391		4343
2392	register_command "reload" => sub {	4344	register_command "reload" => sub {
2393	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2394		4346
2395	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2396	$who->message ("start of reload.");
2397	reload;
2398	$who->message ("end of reload.");	4348	$who->message ("reloading server.");
		4349	async {
		4350	$Coro::current->{desc} = "perl_reload";
		4351	reload_perl;
		4352	};
2399	}	4353	}
2400	};	4354	};
2401		4355
2402	unshift @INC, $LIBDIR;	4356	#############################################################################
2403		4357
2404	$TICK_WATCHER = Event->timer (	4358	my $bug_warning = 0;
2405	reentrant => 0,
2406	prio => 0,
2407	at => $NEXT_TICK || $TICK,
2408	data => WF_AUTOCANCEL,
2409	cb => sub {
2410	$NOW = Event::time;
2411		4359
2412	cf::server_tick; # one server iteration	4360	sub wait_for_tick() {
2413	$RUNTIME += $TICK;	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2414	$NEXT_TICK += $TICK;
2415		4362
		4363	$WAIT_FOR_TICK->wait;
		4364	}
		4365
		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	$signal->wait;
		4372	}
		4373
		4374	sub tick {
		4375	if ($Coro::current != $Coro::main) {
		4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4377	unless ++$bug_warning > 10;
		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: $!";
		4391	};
		4392	}
		4393
		4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4395	$sig->send;
		4396	}
2416	$WAIT_FOR_TICK->broadcast;	4397	$WAIT_FOR_TICK->broadcast;
2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2418		4398
2419	# if we are delayed by four ticks or more, skip them all	4399	$LOAD = ($NOW - $TICK_START) / $TICK;
2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2421		4401
2422	$TICK_WATCHER->at ($NEXT_TICK);	4402	if (0) {
2423	$TICK_WATCHER->start;	4403	if ($NEXT_TICK) {
		4404	my $jitter = $TICK_START - $NEXT_TICK;
		4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4406	debug "jitter $JITTER\n";#d#
		4407	}
2424	},	4408	}
2425	);	4409	}
2426		4410
		4411	{
		4412	# configure BDB
		4413	info "initialising database";
		4414
		4415	BDB::min_parallel 16;
		4416	BDB::max_poll_reqs $TICK * 0.1;
		4417	#$AnyEvent::BDB::WATCHER->priority (1);
		4418
		4419	unless ($DB_ENV) {
		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);
		4426
		4427	cf::sync_job {
		4428	eval {
		4429	BDB::db_env_open
		4430	$DB_ENV,
		4431	$BDBDIR,
		4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4434	0666;
		4435
		4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4437	};
		4438
		4439	cf::cleanup "db_env_open(db): $@" if $@;
		4440	};
		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";
		4454	}
		4455
		4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
		4460	IO::AIO::min_parallel 8;
2427	IO::AIO::max_poll_time $TICK * 0.2;	4461	IO::AIO::max_poll_time $TICK * 0.1;
		4462	undef $AnyEvent::AIO::WATCHER;
		4463	info "aio initialised";
		4464	}
2428		4465
2429	$AIO_POLL_WATCHER = Event->io (	4466	our $_log_backtrace;
2430	fd => IO::AIO::poll_fileno,	4467	our $_log_backtrace_last;
2431	poll => 'r',
2432	prio => 5,
2433	data => WF_AUTOCANCEL,
2434	cb => \&IO::AIO::poll_cb,
2435	);
2436		4468
2437	$WRITE_RUNTIME_WATCHER = Event->timer (	4469	sub _log_backtrace {
2438	data => WF_AUTOCANCEL,	4470	my ($msg, @addr) = @_;
2439	after => 0,	4471
2440	interval => 10,	4472	$msg =~ s/\n$//;
2441	cb => sub {	4473
2442	(Coro::unblock_sub {	4474	if ($_log_backtrace_last eq $msg) {
2443	write_runtime	4475	LOG llevInfo, "[ABT] $msg\n";
2444	or warn "ERROR: unable to write runtime file: $!";	4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_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;
2445	})->();	4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2446	},	4510	}
2447	);	4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2448		4516
2449	END { cf::emergency_save }	4517	END { cf::emergency_save }
2450		4518
2451	1	4519	1
2452		4520

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