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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.215 by root, Thu Feb 15 03:19:02 2007 UTC vs.
Revision 1.624 by root, Sat Nov 17 23:40:02 2018 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2018 Marc Alexander Lehmann / the Deliantra team
		5	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		6	#
		7	# Deliantra is free software: you can redistribute it and/or modify it under
		8	# the terms of the Affero GNU General Public License as published by the
		9	# Free Software Foundation, either version 3 of the License, or (at your
		10	# option) any later version.
		11	#
		12	# This program is distributed in the hope that it will be useful,
		13	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		14	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		15	# GNU General Public License for more details.
		16	#
		17	# You should have received a copy of the Affero GNU General Public License
		18	# and the GNU General Public License along with this program. If not, see
		19	# <http://www.gnu.org/licenses/>.
		20	#
		21	# The authors can be reached via e-mail to <support@deliantra.net>
		22	#
		23
1	package cf;	24	package cf;
2		25
3	use utf8;	26	use common::sense;
4	use strict;
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
		36	use Carp ();
12		37
		38	use AnyEvent ();
		39	use AnyEvent::IO ();
		40	use AnyEvent::DNS ();
		41
13	use Coro 3.5 ();	42	use Coro ();
		43	use Coro::State;
		44	use Coro::Handle;
		45	use Coro::EV;
14	use Coro::Event;	46	use Coro::AnyEvent;
15	use Coro::Timer;	47	use Coro::Timer;
16	use Coro::Signal;	48	use Coro::Signal;
17	use Coro::Semaphore;	49	use Coro::Semaphore;
		50	use Coro::SemaphoreSet;
		51	use Coro::AnyEvent;
18	use Coro::AIO;	52	use Coro::AIO;
		53	use Coro::BDB 1.6;
		54	use Coro::Storable;
		55	use Coro::Util ();
19		56
		57	use Guard ();
		58	use JSON::XS 2.01 ();
20	use BDB ();	59	use BDB ();
21	use Data::Dumper;	60	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	61	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	62	use YAML::XS ();
26	use Time::HiRes;	63	use CBOR::XS ();
		64	use IO::AIO ();
27	use Compress::LZF;	65	use Compress::LZF;
		66	use Digest::MD5 ();
28		67
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	79	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		80
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	81	# strictly for debugging
		82	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		83
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	84	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		85
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	86	our @ORIG_INC;
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		87
40	our %COMMAND = ();	88	our %COMMAND = ();
41	our %COMMAND_TIME = ();	89	our %COMMAND_TIME = ();
42		90
43	our @EXTS = (); # list of extension package names	91	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	92	our %EXTCMD = ();
		93	our %EXTACMD = ();
		94	our %EXTICMD = ();
		95	our %EXTIACMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	96	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	97	our %EXT_MAP = (); # pluggable maps
47		98
		99	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	100	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	101	our @REFLECT; # set by XS
		102	our %REFLECT; # set by us
50		103
51	our $TICK = MAX_TIME * 1e-6;	104	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	105
53	our $AIO_POLL_WATCHER;	106	our $DATADIR = datadir;
		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(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	129	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	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;
56	our $NOW;	146	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		147
59	our $BDB_POLL_WATCHER;	148	our (%PLAYER, %PLAYER_LOADING); # all users
60	our $DB_ENV;	149	our (%MAP, %MAP_LOADING ); # all maps
61
62	our %CFG;
63
64	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;
66
67	our %PLAYER; # all users
68	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	150	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		151
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	153	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $WAIT_FOR_TICK = new Coro::Signal;
		166	our @WAIT_FOR_TICK_BEGIN;
		167
79	binmode STDOUT;	168	binmode STDOUT;
80	binmode STDERR;	169	binmode STDERR;
81		170
82	# read virtual server time, if available	171	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	172	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	173	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	174	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	175	$RUNTIME = <$fh> + 0.;
87	}	176	}
88		177
89	mkdir cf::localdir;	178	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	179
91	mkdir cf::localdir . "/" . cf::tmpdir;	180	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	181	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		182
96	our $EMERGENCY_POSITION;	183	our $EMERGENCY_POSITION;
97		184
98	sub cf::map::normalise;	185	sub cf::map::normalise;
99		186
		187	sub in_main() {
		188	$Coro::current == $Coro::main
		189	}
		190
100	#############################################################################	191	#############################################################################
101		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
102	=head2 GLOBAL VARIABLES	204	=head2 GLOBAL VARIABLES
103		205
104	=over 4	206	=over 4
105		207
106	=item $cf::UPTIME	208	=item $cf::UPTIME
107		209
108	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.
109		226
110	=item $cf::RUNTIME	227	=item $cf::RUNTIME
111		228
112	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
113	every server tick.	230	every server tick.
114		231
115	=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
116		235
117	The perl library directory, where extensions and cf-specific modules can	236	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		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
120	=item $cf::NOW	247	=item $cf::LOAD
121		248
122	The time of the last (current) server tick.	249	The raw value load value from the last tick.
123
124	=item $cf::TICK
125
126	The interval between server ticks, in seconds.
127		250
128	=item %cf::CFG	251	=item %cf::CFG
129		252
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	253	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	254	from wherever your confdir points to.
132		255
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	256	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		257
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	258	These are functions that inhibit the current coroutine one tick.
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	259	cf::wait_for_tick_begin only returns directly I<after> the tick
137	processing has been done. Call C<< ->wait >> on them to maximise the	260	processing (and consequently, can only wake one thread per tick), while
138	window of cpu time available, or simply to synchronise to the server tick.	261	cf::wait_for_tick wakes up all waiters after tick processing.
		262
		263	Note that cf::wait_for_tick will immediately return when the server is not
		264	ticking, making it suitable for small pauses in threads that need to run
		265	when the server is paused. If that is not applicable (i.e. you I<really>
		266	want to wait, use C<$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.
139		291
140	=back	292	=back
141		293
142	=cut	294	=cut
143		295
144	BEGIN {	296	sub error(@) { LOG llevError, join "", @_ }
145	*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 {
146	my $msg = join "", @_;	303	my $msg = join "", @_;
147	utf8::encode $msg;
148		304
149	$msg .= "\n"	305	$msg .= "\n"
150	unless $msg =~ /\n$/;	306	unless $msg =~ /\n$/;
151		307
		308	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		309
152	LOG llevError, $msg;	310	LOG llevWarn, $msg;
153	};	311	};
154	}	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	};
155		326
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	327	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	328	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	329	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	330	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		334
163	# 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
164	# within the Safe compartment.	336	# within the Safe compartment.
165	for my $pkg (qw(	337	for my $pkg (qw(
166	cf::global cf::attachable	338	cf::global cf::attachable
167	cf::object cf::object::player	339	cf::object cf::object::player
168	cf::client cf::player	340	cf::client cf::player
169	cf::arch cf::living	341	cf::arch cf::living
		342	cf::map cf::mapspace
170	cf::map cf::party cf::region	343	cf::party cf::region
171	)) {	344	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	345	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	346	}
175		347
176	$Event::DIED = sub {	348	$EV::DIED = sub {
177	warn "error in event callback: @_";	349	warn "error in event callback: $@";
178	};	350	};
		351
		352	#############################################################################
		353
		354	sub fork_call(&@);
		355	sub get_slot($;$$);
		356
		357	#############################################################################
179		358
180	=head2 UTILITY FUNCTIONS	359	=head2 UTILITY FUNCTIONS
181		360
182	=over 4	361	=over 4
183		362
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	381	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	382	$d
204	} || "[unable to dump $_[0]: '$@']";	383	} || "[unable to dump $_[0]: '$@']";
205	}	384	}
206		385
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	386	=item $scalar = cf::load_file $path
208		387
		388	Loads the given file from path and returns its contents. Croaks on error
		389	and can block.
		390
		391	=cut
		392
		393	sub load_file($) {
		394	0 <= aio_load $_[0], my $data
		395	or Carp::croak "$_[0]: $!";
		396
		397	$data
		398	}
		399
		400	=item $success = cf::replace_file $path, $data, $sync
		401
		402	Atomically replaces the file at the given $path with new $data, and
		403	optionally $sync the data to disk before replacing the file.
		404
		405	=cut
		406
		407	sub replace_file($$;$) {
		408	my ($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
209	=item $ref = cf::from_json $json	438	=item $ref = cf::decode_json $json
210		439
211	Converts a JSON string into the corresponding perl data structure.	440	Converts a JSON string into the corresponding perl data structure.
212		441
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	442	=item $json = cf::encode_json $ref
221		443
222	Converts a perl data structure into its JSON representation.	444	Converts a perl data structure into its JSON representation.
223		445
224	=cut	446	=cut
225		447
226	sub to_json($) {	448	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	449
228	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	}
229	}	527	}
230		528
231	=item cf::lock_wait $string	529	=item cf::lock_wait $string
232		530
233	Wait until the given lock is available. See cf::lock_acquire.	531	Wait until the given lock is available. See cf::lock_acquire.
234		532
235	=item my $lock = cf::lock_acquire $string	533	=item my $lock = cf::lock_acquire $string
236		534
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	537	for example when the coroutine gets canceled), the lock is automatically
240	returned.	538	returned.
241		539
		540	Locks are *not* recursive, locking from the same coro twice results in a
		541	deadlocked coro.
		542
242	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
243	uses map_find and cf::map::load uses map_load).	544	uses map_find and cf::map::load uses map_load).
244		545
245	=cut	546	=item $locked = cf::lock_active $string
246		547
247	our %LOCK;	548	Return true if the lock is currently active, i.e. somebody has locked it.
		549
		550	=cut
		551
		552	our $LOCKS = new Coro::SemaphoreSet;
248		553
249	sub lock_wait($) {	554	sub lock_wait($) {
250	my ($key) = @_;	555	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	556	}
258		557
259	sub lock_acquire($) {	558	sub lock_acquire($) {
260	my ($key) = @_;	559	$LOCKS->guard ($_[0])
		560	}
261		561
262	# wait, to be sure we are not locked	562	sub lock_active($) {
263	lock_wait $key;	563	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	564	}
272		565
273	sub freeze_mainloop {	566	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	567	tick_inhibit_inc;
275		568
276	my $guard = Coro::guard {	569	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	570	}
		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($$) {
		580	my ($interval, $cb) = @_;
		581
		582	my $start = rand List::Util::min 180, $interval;
		583
		584	EV::periodic $start, $interval, 0, $cb
		585	}
		586
		587	=item cf::get_slot $time[, $priority[, $name]]
		588
		589	Allocate $time seconds of blocking CPU time at priority C<$priority>
		590	(default: 0): This call blocks and returns only when you have at least
		591	C<$time> seconds of cpu time till the next tick. The slot is only valid
		592	till the next cede.
		593
		594	Background jobs should use a priority less than zero, interactive jobs
		595	should use 100 or more.
		596
		597	The optional C<$name> can be used to identify the job to run. It might be
		598	used for statistical purposes and should identify the same time-class.
		599
		600	Useful for short background jobs.
		601
		602	=cut
		603
		604	our @SLOT_QUEUE;
		605	our $SLOT_QUEUE;
		606	our $SLOT_DECAY = 0.9;
		607
		608	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		609	$SLOT_QUEUE = Coro::async {
		610	$Coro::current->desc ("timeslot manager");
		611
		612	my $signal = new Coro::Signal;
		613	my $busy;
		614
		615	while () {
		616	next_job:
		617
		618	Coro::cede;
		619
		620	my $avail = cf::till_tick;
		621
		622	for (0 .. $#SLOT_QUEUE) {
		623	if ($SLOT_QUEUE[$_][0] <= $avail) {
		624	$busy = 0;
		625	my $job = splice @SLOT_QUEUE, $_, 1, ();
		626	$job->[2]->send;
		627	goto next_job;
		628	} else {
		629	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		630	}
		631	}
		632
		633	if (@SLOT_QUEUE) {
		634	wait_for_tick;
		635	} else {
		636	$busy = 0;
		637	Coro::schedule;
		638	}
278	};	639	}
279	$TICK_WATCHER->stop;	640	};
280	$guard	641
		642	sub get_slot($;$$) {
		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	$sig->wait;
281	}	655	}
282		656
283	=item cf::async { BLOCK }	657	=item cf::async { BLOCK }
284		658
285	Currently the same as Coro::async_pool, meaning you cannot use	659	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		664
291	BEGIN { *async = \&Coro::async_pool }	665	BEGIN { *async = \&Coro::async_pool }
292		666
293	=item cf::sync_job { BLOCK }	667	=item cf::sync_job { BLOCK }
294		668
295	The design of crossfire+ requires that the main coro ($Coro::main) is	669	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	670	is always able to handle events or is runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	671	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		672	acceptable.
298		673
299	If it must be done, put the blocking parts into C<sync_job>. This will run	674	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	675	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	676	server will be frozen during this time, so the block should either finish
302	fast or be very important.	677	fast or be very important.
…		…
304	=cut	679	=cut
305		680
306	sub sync_job(&) {	681	sub sync_job(&) {
307	my ($job) = @_;	682	my ($job) = @_;
308		683
309	if ($Coro::current == $Coro::main) {	684	if (in_main) {
		685	my $time = AE::time;
		686
310	# this is the main coro, too bad, we have to block	687	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	688	# till the operation succeeds, freezing the server :/
312		689
313	# TODO: use suspend/resume instead	690	#LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	691
315	my $freeze_guard = freeze_mainloop;	692	my $freeze_guard = freeze_mainloop;
316		693
317	my $busy = 1;	694	my $busy = 1;
318	my @res;	695	my @res;
319		696
320	(async {	697	(async {
		698	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	699	@res = eval { $job->() };
322	warn $@ if $@;	700	error $@ if $@;
323	undef $busy;	701	undef $busy;
324	})->prio (Coro::PRIO_MAX);	702	})->prio (Coro::PRIO_MAX);
325		703
326	while ($busy) {	704	while ($busy) {
327	Coro::cede or Event::one_event;	705	if (Coro::nready) {
		706	Coro::cede_notself;
		707	} else {
		708	EV::run EV::RUN_ONCE;
328	}	709	}
		710	}
		711
		712	my $time = AE::time - $time;
		713
		714	$TICK_START += $time; # do not account sync jobs to server load
329		715
330	wantarray ? @res : $res[0]	716	wantarray ? @res : $res[0]
331	} else {	717	} else {
332	# we are in another coroutine, how wonderful, everything just works	718	# we are in another coroutine, how wonderful, everything just works
333		719
…		…
353	$EXT_CORO{$coro+0} = $coro;	739	$EXT_CORO{$coro+0} = $coro;
354		740
355	$coro	741	$coro
356	}	742	}
357		743
358	sub write_runtime {	744	=item fork_call { }, @args
359	my $runtime = cf::localdir . "/runtime";
360		745
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	746	Executes the given code block with the given arguments in a seperate
362	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.
363		750
364	my $value = $cf::RUNTIME + 90 + 10;	751	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		752
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	753	sub post_fork {
369	and return;	754	reset_signals;
		755	}
370		756
371	# always fsync - this file is important	757	sub fork_call(&@) {
372	aio_fsync $fh	758	my ($cb, @args) = @_;
373	and return;
374		759
375	close $fh	760	my @res = Coro::Util::fork_eval {
376	or return;	761	cf::post_fork;
		762	&$cb
		763	} @args;
377		764
378	aio_rename "$runtime~", $runtime	765	wantarray ? @res : $res[-1]
379	and return;	766	}
380		767
		768	sub objinfo {
381	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 });
382	}	943	}
383		944
384	=back	945	=back
385		946
386	=cut	947	=cut
387		948
388	#############################################################################	949	#############################################################################
389		950
390	=head2 ATTACHABLE OBJECTS	951	=head2 ATTACHABLE OBJECTS
391		952
392	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
393	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")
394	to it. All such attachable objects support the following methods.	955	to it. All such attachable objects support the following methods.
395		956
396	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>
397	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
398	crossfire+).	959	Deliantra).
399		960
400	=over 4	961	=over 4
401		962
402	=item $attachable->attach ($attachment, key => $value...)	963	=item $attachable->attach ($attachment, key => $value...)
403		964
…		…
447	=item cf::CLASS::attachment $name, ...	1008	=item cf::CLASS::attachment $name, ...
448		1009
449	Register an attachment by C<$name> through which attachable objects of the	1010	Register an attachment by C<$name> through which attachable objects of the
450	given CLASS can refer to this attachment.	1011	given CLASS can refer to this attachment.
451		1012
452	Some classes such as crossfire maps and objects can specify attachments	1013	Some classes such as deliantra maps and objects can specify attachments
453	that are attached at load/instantiate time, thus the need for a name.	1014	that are attached at load/instantiate time, thus the need for a name.
454		1015
455	These calls expect any number of the following handler/hook descriptions:	1016	These calls expect any number of the following handler/hook descriptions:
456		1017
457	=over 4	1018	=over 4
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	1127	$registry = $CB_TYPE[$object_type] ||= [];
567		1128
568	} elsif ($type eq "subtype") {	1129	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	1130	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	1131	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1132	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		1133
573	} elsif ($type eq "package") {	1134	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	1135	my $pkg = shift @arg;
575		1136
576	while (my ($name, $id) = each %cb_id) {	1137	while (my ($name, $id) = each %cb_id) {
…		…
581		1142
582	} elsif (exists $cb_id{$type}) {	1143	} elsif (exists $cb_id{$type}) {
583	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1144	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
584		1145
585	} elsif (ref $type) {	1146	} elsif (ref $type) {
586	warn "attaching objects not supported, ignoring.\n";	1147	error "attaching objects not supported, ignoring.\n";
587		1148
588	} else {	1149	} else {
589	shift @arg;	1150	shift @arg;
590	warn "attach argument '$type' not supported, ignoring.\n";	1151	error "attach argument '$type' not supported, ignoring.\n";
591	}	1152	}
592	}	1153	}
593	}	1154	}
594		1155
595	sub _object_attach {	1156	sub _object_attach {
…		…
605	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
606	}	1167	}
607		1168
608	$obj->{$name} = \%arg;	1169	$obj->{$name} = \%arg;
609	} else {	1170	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	1171	info "object uses attachment '$name' which is not available, postponing.\n";
611	}	1172	}
612		1173
613	$obj->{_attachment}{$name} = undef;	1174	$obj->{_attachment}{$name} = undef;
614	}	1175	}
615		1176
…		…
617	if (ref $_[0]) {	1178	if (ref $_[0]) {
618	_object_attach @_;	1179	_object_attach @_;
619	} else {	1180	} else {
620	_attach shift->_attach_registry, @_;	1181	_attach shift->_attach_registry, @_;
621	}	1182	}
		1183	_recalc_want;
622	};	1184	};
623		1185
624	# all those should be optimised	1186	# all those should be optimised
625	sub cf::attachable::detach {	1187	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	1191	delete $obj->{_attachment}{$name};
630	reattach ($obj);	1192	reattach ($obj);
631	} else {	1193	} else {
632	Carp::croak "cannot, currently, detach class attachments";	1194	Carp::croak "cannot, currently, detach class attachments";
633	}	1195	}
		1196	_recalc_want;
634	};	1197	};
635		1198
636	sub cf::attachable::attached {	1199	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	1200	my ($obj, $name) = @_;
638		1201
…		…
653	";	1216	";
654	die if $@;	1217	die if $@;
655	}	1218	}
656		1219
657	our $override;	1220	our $override;
658	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?
659		1222
660	sub override {	1223	sub override {
661	$override = 1;	1224	$override = 1;
662	@invoke_results = ();	1225	@INVOKE_RESULTS = (@_);
663	}	1226	}
664		1227
665	sub do_invoke {	1228	sub do_invoke {
666	my $event = shift;	1229	my $event = shift;
667	my $callbacks = shift;	1230	my $callbacks = shift;
668		1231
669	@invoke_results = ();	1232	@INVOKE_RESULTS = ();
670		1233
671	local $override;	1234	local $override;
672		1235
673	for (@$callbacks) {	1236	for (@$callbacks) {
674	eval { &{$_->[1]} };	1237	eval { &{$_->[1]} };
675		1238
676	if ($@) {	1239	if ($@) {
677	warn "$@";
678	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1240	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
679	override;	1241	override;
680	}	1242	}
681		1243
682	return 1 if $override;	1244	return 1 if $override;
683	}	1245	}
684		1246
685	0	1247	0
686	}	1248	}
687		1249
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1250	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		1251
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1252	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1253
692	Generate an object-specific event with the given arguments.	1254	Generate an object-specific event with the given arguments.
693		1255
694	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
695	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
696	results (if you must, access C<@cf::invoke_results> directly).	1258	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1259
698	=back	1260	=back
699		1261
700	=cut	1262	=cut
701		1263
702	#############################################################################	1264	#############################################################################
703	# 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, $ob2
		1307	}
704		1308
705	sub reattach {	1309	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1310	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1311	my ($obj) = @_;
708		1312
		1313	# no longer needed after getting rid of delete_package?
709	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
710		1315
711	my $registry = $obj->registry;	1316	my $registry = $obj->registry;
712		1317
713	@$registry = ();	1318	@$registry = ();
714		1319
…		…
719	for (@$attach) {	1324	for (@$attach) {
720	my ($klass, @attach) = @$_;	1325	my ($klass, @attach) = @$_;
721	_attach $registry, $klass, @attach;	1326	_attach $registry, $klass, @attach;
722	}	1327	}
723	} else {	1328	} else {
724	warn "object uses attachment '$name' that is not available, postponing.\n";	1329	info "object uses attachment '$name' that is not available, postponing.\n";
725	}	1330	}
726	}	1331	}
727	}	1332	}
728		1333
729	cf::attachable->attach (	1334	cf::attachable->attach (
730	prio => -1000000,	1335	prio => -1000000,
731	on_instantiate => sub {	1336	on_instantiate => sub {
732	my ($obj, $data) = @_;	1337	my ($obj, $data) = @_;
733		1338
734	$data = from_json $data;	1339	$data = decode_json $data;
735		1340
736	for (@$data) {	1341	for (@$data) {
737	my ($name, $args) = @$_;	1342	my ($name, $args) = @$_;
738		1343
739	$obj->attach ($name, %{$args || {} });	1344	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1360	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1361	my ($filename, $rdata, $objs) = @_;
757		1362
758	sync_job {	1363	sync_job {
759	if (length $$rdata) {	1364	if (length $$rdata) {
		1365	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1366	trace sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1367	$decname, length $$rdata, scalar @$objs
		1368	if $VERBOSE_IO;
762		1369
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1370	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1371	aio_chmod $fh, SAVE_MODE;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1372	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	aio_fsync $fh if $cf::USE_FSYNC;	1373	if ($cf::USE_FSYNC) {
		1374	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1375	aio_fsync $fh;
		1376	}
767	close $fh;	1377	aio_close $fh;
768		1378
769	if (@$objs) {	1379	if (@$objs) {
770	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) {
771	chmod SAVE_MODE, $fh;	1381	aio_chmod $fh, SAVE_MODE;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1382	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1383	aio_write $fh, 0, (length $data), $data, 0;
774	aio_fsync $fh if $cf::USE_FSYNC;	1384	if ($cf::USE_FSYNC) {
		1385	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1386	aio_fsync $fh;
		1387	}
775	close $fh;	1388	aio_close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1389	aio_rename "$filename.pst~", "$filename.pst";
777	}	1390	}
778	} else {	1391	} else {
779	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
780	}	1393	}
781		1394
782	aio_rename "$filename~", $filename;	1395	aio_rename "$filename~", $filename;
		1396
		1397	$filename =~ s%/[^/]+$%%;
		1398	aio_pathsync $filename if $cf::USE_FSYNC;
783	} else {	1399	} else {
784	warn "FATAL: $filename~: $!\n";	1400	error "unable to save objects: $filename~: $!\n";
785	}	1401	}
786	} else {	1402	} else {
787	aio_unlink $filename;	1403	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1404	aio_unlink "$filename.pst";
789	}	1405	}
790
791	#d##TODO# nuke non .map-files if exist
792	if ($filename =~ s/\.map$//) {
793	aio_unlink $filename;
794	aio_unlink "$filename.pst";
795	}
796	}	1406	};
797	}	1407	}
798		1408
799	sub object_freezer_as_string {	1409	sub object_freezer_as_string {
800	my ($rdata, $objs) = @_;	1410	my ($rdata, $objs) = @_;
801		1411
…		…
806		1416
807	sub object_thawer_load {	1417	sub object_thawer_load {
808	my ($filename) = @_;	1418	my ($filename) = @_;
809		1419
810	my ($data, $av);	1420	my ($data, $av);
811
812	#d#TODO remove .map if file does not exist
813	aio_stat $filename and $filename =~ s/\.map$//;
814		1421
815	(aio_load $filename, $data) >= 0	1422	(aio_load $filename, $data) >= 0
816	or return;	1423	or return;
817		1424
818	unless (aio_stat "$filename.pst") {	1425	unless (aio_stat "$filename.pst") {
819	(aio_load "$filename.pst", $av) >= 0	1426	(aio_load "$filename.pst", $av) >= 0
820	or return;	1427	or return;
		1428
821	$av = eval { (Storable::thaw $av)->{objs} };	1429	my $st = eval { Coro::Storable::thaw $av };
		1430	$av = $st->{objs};
822	}	1431	}
823		1432
		1433	utf8::decode (my $decname = $filename);
824	warn sprintf "loading %s (%d)\n",	1434	trace sprintf "loading %s (%d,%d)\n",
825	$filename, length $data, scalar @{$av || []};#d#	1435	$decname, length $data, scalar @{$av || []}
		1436	if $VERBOSE_IO;
		1437
826	return ($data, $av);	1438	($data, $av)
827	}	1439	}
		1440
		1441	=head2 COMMAND CALLBACKS
		1442
		1443	=over 4
		1444
		1445	=cut
828		1446
829	#############################################################################	1447	#############################################################################
830	# command handling &c	1448	# command handling &c
831		1449
832	=item cf::register_command $name => \&callback($ob,$args);	1450	=item cf::register_command $name => \&callback($ob,$args)
833		1451
834	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
835	$name.	1453	$name.
836		1454
837	=cut	1455	=cut
…		…
843	#warn "registering command '$name/$time' to '$caller'";	1461	#warn "registering command '$name/$time' to '$caller'";
844		1462
845	push @{ $COMMAND{$name} }, [$caller, $cb];	1463	push @{ $COMMAND{$name} }, [$caller, $cb];
846	}	1464	}
847		1465
848	=item cf::register_extcmd $name => \&callback($pl,$packet);	1466	=item cf::register_extcmd $name => \&callback($pl,@args)
849		1467
850	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.
851		1473
852	If the callback returns something, it is sent back as if reply was being	1474	The values will be sent back to the client.
853	called.
854		1475
855	=cut	1476	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
856		1477
		1478	Same as C<cf::register_extcmd>, but instead of returning values, the
		1479	callback needs to clal the C<$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
857	sub register_extcmd {	1498	sub register_extcmd($$) {
858	my ($name, $cb) = @_;	1499	my ($name, $cb) = @_;
859		1500
860	$EXTCMD{$name} = $cb;	1501	$EXTCMD{$name} = $cb;
861	}	1502	}
862		1503
		1504	sub register_async_extcmd($$) {
		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} = $cb;
		1520	}
		1521
		1522	use File::Glob ();
		1523
863	cf::player->attach (	1524	cf::player->attach (
864	on_command => sub {	1525	on_unknown_command => sub {
865	my ($pl, $name, $params) = @_;	1526	my ($pl, $name, $params) = @_;
866		1527
867	my $cb = $COMMAND{$name}	1528	my $cb = $COMMAND{$name}
868	or return;	1529	or return;
869		1530
…		…
874	cf::override;	1535	cf::override;
875	},	1536	},
876	on_extcmd => sub {	1537	on_extcmd => sub {
877	my ($pl, $buf) = @_;	1538	my ($pl, $buf) = @_;
878		1539
879	my $msg = eval { from_json $buf };	1540	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
880		1541
881	if (ref $msg) {	1542	if (ref $msg) {
		1543	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1544
882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1545	if (my $cb = $EXTACMD{$type}) {
883	if (my %reply = $cb->($pl, $msg)) {	1546	$cb->(
884	$pl->ext_reply ($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);
885	}	1559	}
		1560
		1561	$pl->ext_msg ("reply-$reply", @reply)
		1562	if $reply;
886	}	1563	}
		1564
887	} else {	1565	} else {
888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1566	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889	}	1567	}
890		1568
891	cf::override;	1569	cf::override;
892	},	1570	},
893	);	1571	);
894		1572
		1573	# "readahead" all extensions
895	sub load_extension {	1574	sub cache_extensions {
896	my ($path) = @_;	1575	my $grp = IO::AIO::aio_group;
897		1576
898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
899	my $base = $1;	1578	for (grep /\.ext$/, @{$_[0]}) {
900	my $pkg = $1;	1579	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
901	$pkg =~ s/[^[:word:]]/_/g;
902	$pkg = "ext::$pkg";
903
904	warn "... loading '$path' into '$pkg'\n";
905
906	open my $fh, "<:utf8", $path
907	or die "$path: $!";
908
909	my $source =
910	"package $pkg; use strict; use utf8;\n"
911	. "#line 1 \"$path\"\n{\n"
912	. (do { local $/; <$fh> })
913	. "\n};\n1";
914
915	unless (eval $source) {
916	my $msg = $@ ? "$path: $@\n"
917	: "extension disabled.\n";
918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
919	warn $@;
920	warn "mandatory extension failed to load, exiting.\n";
921	exit 1;
922	}	1580	}
923	die $@;
924	}	1581	};
925		1582
926	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;
927	}	1595	}
928		1596
929	sub load_extensions {	1597	sub load_extensions {
		1598	info "loading extensions...";
		1599
		1600	%EXT_CFG = ();
		1601
		1602	cf::sync_job {
		1603	my %todo;
		1604
930	for my $ext (<$LIBDIR/*.ext>) {	1605	for my $path (<$LIBDIR/*.ext>) {
931	next unless -r $ext;	1606	next unless -r $path;
932	eval {	1607
933	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 $active;
		1679	}
934	1	1680	}
935	} or warn "$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	}
936	}	1693	};
937	}	1694	}
938		1695
939	#############################################################################	1696	#############################################################################
940		1697
		1698	=back
		1699
941	=head2 CORE EXTENSIONS	1700	=head2 CORE EXTENSIONS
942		1701
943	Functions and methods that extend core crossfire objects.	1702	Functions and methods that extend core deliantra objects.
944		1703
945	=cut	1704	=cut
946		1705
947	package cf::player;	1706	package cf::player;
948		1707
…		…
950		1709
951	=head3 cf::player	1710	=head3 cf::player
952		1711
953	=over 4	1712	=over 4
954		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
955	=item cf::player::find $login	1728	=item cf::player::find $login
956		1729
957	Returns the given player object, loading it if necessary (might block).	1730	Returns the given player object, loading it if necessary (might block).
958		1731
959	=cut	1732	=cut
960		1733
961	sub playerdir($) {	1734	sub playerdir($) {
962	cf::localdir	1735	"$PLAYERDIR/"
963	. "/"
964	. cf::playerdir
965	. "/"
966	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1736	. (ref $_[0] ? $_[0]->ob->name : $_[0])
967	}	1737	}
968		1738
969	sub path($) {	1739	sub path($) {
970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1740	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
971		1741
972	(playerdir $login) . "/$login.pl"	1742	(playerdir $login) . "/playerdata"
973	}	1743	}
974		1744
975	sub find_active($) {	1745	sub find_active($) {
976	$cf::PLAYER{$_[0]}	1746	$cf::PLAYER{$_[0]}
977	and $cf::PLAYER{$_[0]}->active	1747	and $cf::PLAYER{$_[0]}->active
…		…
980		1750
981	sub exists($) {	1751	sub exists($) {
982	my ($login) = @_;	1752	my ($login) = @_;
983		1753
984	$cf::PLAYER{$login}	1754	$cf::PLAYER{$login}
985	or cf::sync_job { !aio_stat path $login }	1755	or !aio_stat path $login
986	}	1756	}
987		1757
988	sub find($) {	1758	sub find($) {
989	return $cf::PLAYER{$_[0]} || do {	1759	return $cf::PLAYER{$_[0]} || do {
990	my $login = $_[0];	1760	my $login = $_[0];
991		1761
992	my $guard = cf::lock_acquire "user_find:$login";	1762	my $guard = cf::lock_acquire "user_find:$login";
993		1763
994	$cf::PLAYER{$_[0]} || do {	1764	$cf::PLAYER{$_[0]} || do {
995	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
996	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;
997	$cf::PLAYER{$login} = $pl	1780	$cf::PLAYER{$login} = $pl
998	}	1781	}
999	}	1782	}
1000	}	1783	}
		1784
		1785	cf::player->attach (
		1786	on_load => sub {
		1787	my ($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	);
1001		1797
1002	sub save($) {	1798	sub save($) {
1003	my ($pl) = @_;	1799	my ($pl) = @_;
1004		1800
1005	return if $pl->{deny_save};	1801	return if $pl->{deny_save};
…		…
1010	return if $pl->{deny_save};	1806	return if $pl->{deny_save};
1011		1807
1012	aio_mkdir playerdir $pl, 0770;	1808	aio_mkdir playerdir $pl, 0770;
1013	$pl->{last_save} = $cf::RUNTIME;	1809	$pl->{last_save} = $cf::RUNTIME;
1014		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
1015	$pl->save_pl ($path);	1816	$pl->save_pl ($path);
1016	Coro::cede;	1817	cf::cede_to_tick;
1017	}	1818	}
1018		1819
1019	sub new($) {	1820	sub new($) {
1020	my ($login) = @_;	1821	my ($login) = @_;
1021		1822
…		…
1027	$cf::PLAYER{$login} = $self;	1828	$cf::PLAYER{$login} = $self;
1028		1829
1029	$self	1830	$self
1030	}	1831	}
1031		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
1032	=item $pl->quit_character	1843	=item $pl->quit_character
1033		1844
1034	Nukes the player without looking back. If logged in, the connection will	1845	Nukes the player without looking back. If logged in, the connection will
1035	be destroyed. May block for a long time.	1846	be destroyed. May block for a long time.
1036		1847
1037	=cut	1848	=cut
1038		1849
1039	sub quit_character {	1850	sub quit_character {
1040	my ($pl) = @_;	1851	my ($pl) = @_;
1041		1852
		1853	my $name = $pl->ob->name;
		1854
1042	$pl->{deny_save} = 1;	1855	$pl->{deny_save} = 1;
1043	$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
1044		1857
1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1858	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1046	$pl->deactivate;	1859	$pl->deactivate;
		1860
		1861	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1862	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1863	ext::highscore::check ($pl->ob);
		1864
1048	$pl->ns->destroy if $pl->ns;	1865	$pl->ns->destroy if $pl->ns;
1049		1866
1050	my $path = playerdir $pl;	1867	my $path = playerdir $pl;
1051	my $temp = "$path~$cf::RUNTIME~deleting~";	1868	my $temp = "$path~$cf::RUNTIME~deleting~";
1052	aio_rename $path, $temp;	1869	aio_rename $path, $temp;
1053	delete $cf::PLAYER{$pl->ob->name};	1870	delete $cf::PLAYER{$pl->ob->name};
1054	$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
1055	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;
1056	}	1893	}
1057		1894
1058	=item cf::player::list_logins	1895	=item cf::player::list_logins
1059		1896
1060	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
1061	while and may block, so not sync_job-capable, ever.	1898	while and may block, so not sync_job-capable, ever.
1062		1899
1063	=cut	1900	=cut
1064		1901
1065	sub list_logins {	1902	sub list_logins {
1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1903	my $dirs = aio_readdir $PLAYERDIR
1067	or return [];	1904	or return [];
1068		1905
1069	my @logins;	1906	my @logins;
1070		1907
1071	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") {
1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1914	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1073	aio_read $fh, 0, 512, my $buf, 0 or next;	1915	aio_read $fh, 0, 512, my $buf, 0 or next;
1074	$buf !~ /^password -------------$/m or next; # official not-valid tag	1916	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1917	}
1075		1918
1076	utf8::decode $login;	1919	utf8::decode $login;
1077	push @logins, $login;	1920	push @logins, $login;
1078	}	1921	}
1079		1922
1080	\@logins	1923	\@logins
1081	}	1924	}
1082		1925
1083	=item $player->maps	1926	=item $player->maps
		1927
		1928	=item cf::player::maps $login
1084		1929
1085	Returns an arrayref of map paths that are private for this	1930	Returns an arrayref of map paths that are private for this
1086	player. May block.	1931	player. May block.
1087		1932
1088	=cut	1933	=cut
…		…
1106	}	1951	}
1107		1952
1108	\@paths	1953	\@paths
1109	}	1954	}
1110		1955
		1956	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1957
		1958	Expand deliantra pod fragments into protocol xml.
		1959
1111	=item $player->ext_reply ($msgid, $msgtype, %msg)	1960	=item $player->ext_msg ($type, @msg)
1112		1961
1113	Sends an ext reply to the player.	1962	Sends an ext event to the client.
1114		1963
1115	=cut	1964	=cut
1116		1965
1117	sub ext_reply($$$%) {	1966	sub ext_msg($$@) {
1118	my ($self, $id, %msg) = @_;	1967	my ($self, $type, @msg) = @_;
1119		1968
1120	$msg{msgid} = $id;	1969	$self->ns->ext_msg ($type, @msg);
1121
1122	$self->send ("ext " . cf::to_json \%msg);
1123	}	1970	}
1124		1971
1125	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	}
1126		2002
1127	=back	2003	=back
1128
1129		2004
1130	=head3 cf::map	2005	=head3 cf::map
1131		2006
1132	=over 4	2007	=over 4
1133		2008
…		…
1145	our $MAX_RESET = 3600;	2020	our $MAX_RESET = 3600;
1146	our $DEFAULT_RESET = 3000;	2021	our $DEFAULT_RESET = 3000;
1147		2022
1148	sub generate_random_map {	2023	sub generate_random_map {
1149	my ($self, $rmp) = @_;	2024	my ($self, $rmp) = @_;
1150	# mit "rum" bekleckern, nicht	2025
		2026	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2027
1151	$self->_create_random_map (	2028	$self->_create_random_map ($rmp);
1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1155	$rmp->{exit_on_final_map},
1156	$rmp->{xsize}, $rmp->{ysize},
1157	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1158	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1159	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1160	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1161	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1162	(cf::region::find $rmp->{region}), $rmp->{custom}
1163	)
1164	}	2029	}
1165		2030
1166	=item cf::map->register ($regex, $prio)	2031	=item cf::map->register ($regex, $prio)
1167		2032
1168	Register a handler for the map path matching the given regex at the	2033	Register a handler for the map path matching the given regex at the
…		…
1173		2038
1174	sub register {	2039	sub register {
1175	my (undef, $regex, $prio) = @_;	2040	my (undef, $regex, $prio) = @_;
1176	my $pkg = caller;	2041	my $pkg = caller;
1177		2042
1178	no strict;
1179	push @{"$pkg\::ISA"}, __PACKAGE__;	2043	push @{"$pkg\::ISA"}, __PACKAGE__;
1180		2044
1181	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2045	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1182	}	2046	}
1183		2047
1184	# also paths starting with '/'	2048	# also paths starting with '/'
1185	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2049	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1186		2050
1187	sub thawer_merge {	2051	sub thawer_merge {
1188	my ($self, $merge) = @_;	2052	my ($self, $merge) = @_;
1189		2053
1190	# we have to keep some variables in memory intact	2054	# we have to keep some variables in memory intact
1191	local $self->{path};	2055	local $self->{path};
1192	local $self->{load_path};	2056	local $self->{load_path};
1193	local $self->{deny_save};
1194	local $self->{deny_reset};
1195		2057
1196	$self->SUPER::thawer_merge ($merge);	2058	$self->SUPER::thawer_merge ($merge);
1197	}	2059	}
1198		2060
1199	sub normalise {	2061	sub normalise {
1200	my ($path, $base) = @_;	2062	my ($path, $base) = @_;
1201		2063
1202	$path = "$path"; # make sure its a string	2064	$path = "$path"; # make sure it's a string
1203		2065
1204	$path =~ s/\.map$//;	2066	$path =~ s/\.map$//;
1205		2067
1206	# map plan:	2068	# map plan:
1207	#	2069	#
…		…
1222	$base =~ s{[^/]+/?$}{};	2084	$base =~ s{[^/]+/?$}{};
1223	$path = "$base/$path";	2085	$path = "$base/$path";
1224	}	2086	}
1225		2087
1226	for ($path) {	2088	for ($path) {
1227	redo if s{//}{/};
1228	redo if s{/\.?/}{/};	2089	redo if s{/\.?/}{/};
1229	redo if s{/[^/]+/\.\./}{/};	2090	redo if s{/[^/]+/\.\./}{/};
1230	}	2091	}
1231		2092
1232	$path	2093	$path
…		…
1246	$self->init; # pass $1 etc.	2107	$self->init; # pass $1 etc.
1247	return $self;	2108	return $self;
1248	}	2109	}
1249	}	2110	}
1250		2111
1251	Carp::carp "unable to resolve path '$path' (base '$base').";	2112	Carp::cluck "unable to resolve path '$path' (base '$base')";
1252	()	2113	()
1253	}	2114	}
1254		2115
		2116	# may re-bless or do other evil things
1255	sub init {	2117	sub init {
1256	my ($self) = @_;	2118	my ($self) = @_;
1257		2119
1258	$self	2120	$self
1259	}	2121	}
…		…
1271		2133
1272	# the original (read-only) location	2134	# the original (read-only) location
1273	sub load_path {	2135	sub load_path {
1274	my ($self) = @_;	2136	my ($self) = @_;
1275		2137
1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2138	"$MAPDIR/$self->{path}.map"
1277	}	2139	}
1278		2140
1279	# the temporary/swap location	2141	# the temporary/swap location
1280	sub save_path {	2142	sub save_path {
1281	my ($self) = @_;	2143	my ($self) = @_;
1282		2144
1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2145	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2146	"$TMPDIR/$path.map"
1285	}	2147	}
1286		2148
1287	# the unique path, undef == no special unique path	2149	# the unique path, undef == no special unique path
1288	sub uniq_path {	2150	sub uniq_path {
1289	my ($self) = @_;	2151	my ($self) = @_;
1290		2152
1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2153	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2154	"$UNIQUEDIR/$path"
1293	}	2155	}
1294		2156
1295	# and all this just because we cannot iterate over	2157	sub decay_objects {
1296	# all maps in C++...
1297	sub change_all_map_light {
1298	my ($change) = @_;	2158	my ($self) = @_;
1299		2159
1300	$_->change_map_light ($change)	2160	return if $self->{deny_reset};
1301	for grep $_->outdoor, values %cf::MAP;	2161
		2162	$self->do_decay_objects;
1302	}	2163	}
1303		2164
1304	sub unlink_save {	2165	sub unlink_save {
1305	my ($self) = @_;	2166	my ($self) = @_;
1306		2167
1307	utf8::encode (my $save = $self->save_path);	2168	utf8::encode (my $save = $self->save_path);
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2169	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2170	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311	#d#TODO remove .map and also nuke
1312	$save =~ s/\.map// or return;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1315	}	2171	}
1316		2172
1317	sub load_header_from($) {	2173	sub load_header_from($) {
1318	my ($self, $path) = @_;	2174	my ($self, $path) = @_;
1319		2175
1320	utf8::encode $path;	2176	utf8::encode $path;
1321	#aio_open $path, O_RDONLY, 0	2177	my $f = new_from_file cf::object::thawer $path
1322	# or return;
1323
1324	$self->_load_header ($path)
1325	or return;	2178	or return;
1326		2179
		2180	$self->_load_header ($f)
		2181	or return;
		2182
		2183	local $MAP_LOADING{$self->{path}} = $self;
		2184	$f->resolve_delayed_derefs;
		2185
1327	$self->{load_path} = $path;	2186	$self->{load_path} = $path;
1328		2187
1329	1	2188	1
1330	}	2189	}
1331		2190
		2191	# used to laod the header of an original map
1332	sub load_header_orig {	2192	sub load_header_orig {
1333	my ($self) = @_;	2193	my ($self) = @_;
1334		2194
1335	$self->load_header_from ($self->load_path)	2195	$self->load_header_from ($self->load_path)
1336	}	2196	}
1337		2197
		2198	# used to laod the header of an instantiated map
1338	sub load_header_temp {	2199	sub load_header_temp {
1339	my ($self) = @_;	2200	my ($self) = @_;
1340		2201
1341	$self->load_header_from ($self->save_path)	2202	$self->load_header_from ($self->save_path)
1342	}	2203	}
1343		2204
		2205	# called after loading the header from an instantiated map
1344	sub prepare_temp {	2206	sub prepare_temp {
1345	my ($self) = @_;	2207	my ($self) = @_;
1346		2208
1347	$self->last_access ((delete $self->{last_access})	2209	$self->last_access ((delete $self->{last_access})
1348	|| $cf::RUNTIME); #d#	2210	|| $cf::RUNTIME); #d#
1349	# safety	2211	# safety
1350	$self->{instantiate_time} = $cf::RUNTIME	2212	$self->{instantiate_time} = $cf::RUNTIME
1351	if $self->{instantiate_time} > $cf::RUNTIME;	2213	if $self->{instantiate_time} > $cf::RUNTIME;
1352	}	2214	}
1353		2215
		2216	# called after loading the header from an original map
1354	sub prepare_orig {	2217	sub prepare_orig {
1355	my ($self) = @_;	2218	my ($self) = @_;
1356		2219
1357	$self->{load_original} = 1;	2220	$self->{load_original} = 1;
1358	$self->{instantiate_time} = $cf::RUNTIME;	2221	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1369	$self->load_header_orig	2232	$self->load_header_orig
1370	or return;	2233	or return;
1371	$self->prepare_orig;	2234	$self->prepare_orig;
1372	}	2235	}
1373		2236
		2237	$self->{deny_reset} = 1
		2238	if $self->no_reset;
		2239
		2240	$self->default_region (cf::region::find_by_path $self->{path})
		2241	unless $self->default_region;
		2242
1374	1	2243	1
1375	}	2244	}
1376		2245
1377	sub find;	2246	sub find;
1378	sub find {	2247	sub find {
1379	my ($path, $origin) = @_;	2248	my ($path, $origin) = @_;
1380		2249
		2250	cf::cede_to_tick;
		2251
1381	$path = normalise $path, $origin && $origin->path;	2252	$path = normalise $path, $origin;
1382		2253
		2254	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1383	cf::lock_wait "map_find:$path";	2255	my $guard2 = cf::lock_acquire "map_find:$path";
1384		2256
1385	$cf::MAP{$path} || do {	2257	$cf::MAP{$path} || do {
1386	my $guard = cf::lock_acquire "map_find:$path";
1387	my $map = new_from_path cf::map $path	2258	my $map = new_from_path cf::map $path
1388	or return;	2259	or return;
1389		2260
1390	$map->{last_save} = $cf::RUNTIME;	2261	$map->{last_save} = $cf::RUNTIME;
1391		2262
1392	$map->load_header	2263	$map->load_header
1393	or return;	2264	or return;
1394		2265
1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2266	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1396	# doing this can freeze the server in a sync job, obviously	2267	# doing this can freeze the server in a sync job, obviously
1397	#$cf::WAIT_FOR_TICK->wait;	2268	#$cf::WAIT_FOR_TICK->wait;
		2269	undef $guard2;
		2270	undef $guard1;
1398	$map->reset;	2271	$map->reset;
1399	undef $guard;
1400	return find $path;	2272	return find $path;
1401	}	2273	}
1402		2274
1403	$cf::MAP{$path} = $map	2275	$cf::MAP{$path} = $map
1404	}	2276	}
1405	}	2277	}
1406		2278
1407	sub pre_load { }	2279	sub pre_load { }
1408	sub post_load { }	2280	#sub post_load { } # XS
1409		2281
1410	sub load {	2282	sub load {
1411	my ($self) = @_;	2283	my ($self) = @_;
1412		2284
1413	local $self->{deny_reset} = 1; # loading can take a long time	2285	local $self->{deny_reset} = 1; # loading can take a long time
1414		2286
1415	my $path = $self->{path};	2287	my $path = $self->{path};
		2288
		2289	{
1416	my $guard = cf::lock_acquire "map_load:$path";	2290	my $guard = cf::lock_acquire "map_data:$path";
1417		2291
1418	return if $self->in_memory != cf::MAP_SWAPPED;	2292	return unless $self->valid;
		2293	return unless $self->state == cf::MAP_SWAPPED;
1419		2294
1420	$self->in_memory (cf::MAP_LOADING);
1421
1422	$self->alloc;	2295	$self->alloc;
1423		2296
1424	$self->pre_load;	2297	$self->pre_load;
		2298	cf::cede_to_tick;
1425		2299
1426	$self->_load_objects ($self->{load_path}, 1)	2300	if (exists $self->{load_path}) {
		2301	my $f = new_from_file cf::object::thawer $self->{load_path};
		2302	$f->skip_block;
		2303	$self->_load_objects ($f)
1427	or return;	2304	or return;
1428		2305
1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2306	$self->post_load_original
1430	if delete $self->{load_original};	2307	if delete $self->{load_original};
1431		2308
1432	if (my $uniq = $self->uniq_path) {	2309	if (my $uniq = $self->uniq_path) {
1433	utf8::encode $uniq;	2310	utf8::encode $uniq;
1434	if (aio_open $uniq, O_RDONLY, 0) {	2311	unless (aio_stat $uniq) {
		2312	if (my $f = new_from_file cf::object::thawer $uniq) {
1435	$self->clear_unique_items;	2313	$self->clear_unique_items;
1436	$self->_load_objects ($uniq, 0);	2314	$self->_load_objects ($f);
		2315	$f->resolve_delayed_derefs;
		2316	}
		2317	}
1437	}	2318	}
1438	}
1439		2319
1440	Coro::cede;	2320	$f->resolve_delayed_derefs;
		2321	} else {
		2322	$self->post_load_original
		2323	if delete $self->{load_original};
		2324	}
1441		2325
		2326	$self->state (cf::MAP_INACTIVE);
		2327
		2328	cf::cede_to_tick;
1442	# now do the right thing for maps	2329	# now do the right thing for maps
1443	$self->link_multipart_objects;	2330	$self->link_multipart_objects;
1444
1445	unless ($self->{deny_activate}) {
1446	$self->decay_objects;
1447	$self->fix_auto_apply;
1448	$self->update_buttons;
1449	Coro::cede;
1450	$self->set_darkness_map;
1451	$self->difficulty ($self->estimate_difficulty)	2331	$self->difficulty ($self->estimate_difficulty)
1452	unless $self->difficulty;	2332	unless $self->difficulty;
1453	Coro::cede;	2333	cf::cede_to_tick;
1454	$self->activate;	2334
		2335	unless ($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);
1455	}	2345	}
1456		2346
1457	$self->post_load;	2347	$self->post_load;
1458		2348
1459	$self->in_memory (cf::MAP_IN_MEMORY);	2349	1
1460	}	2350	}
1461		2351
		2352	# customize the map for a given player, i.e.
		2353	# return the _real_ map. used by e.g. per-player
		2354	# maps to change the path to ~playername/mappath
1462	sub customise_for {	2355	sub customise_for {
1463	my ($self, $ob) = @_;	2356	my ($self, $ob) = @_;
1464		2357
1465	return find "~" . $ob->name . "/" . $self->{path}	2358	return find "~" . $ob->name . "/" . $self->{path}
1466	if $self->per_player;	2359	if $self->per_player;
1467		2360
		2361	# return find "?party/" . $ob->name . "/" . $self->{path}
		2362	# if $self->per_party;
		2363
1468	$self	2364	$self
1469	}
1470
1471	# find and load all maps in the 3x3 area around a map
1472	sub load_diag {
1473	my ($map) = @_;
1474
1475	my @diag; # diagonal neighbours
1476
1477	for (0 .. 3) {
1478	my $neigh = $map->tile_path ($_)
1479	or next;
1480	$neigh = find $neigh, $map
1481	or next;
1482	$neigh->load;
1483
1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1486	}
1487
1488	for (@diag) {
1489	my $neigh = find @$_
1490	or next;
1491	$neigh->load;
1492	}
1493	}	2365	}
1494		2366
1495	sub find_sync {	2367	sub find_sync {
1496	my ($path, $origin) = @_;	2368	my ($path, $origin) = @_;
1497		2369
1498	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, $origin
1499	}	2375	}
1500		2376
1501	sub do_load_sync {	2377	sub do_load_sync {
1502	my ($map) = @_;	2378	my ($map) = @_;
1503		2379
1504	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;
1505	}	2385	}
1506		2386
1507	our %MAP_PREFETCH;	2387	our %MAP_PREFETCH;
1508	our $MAP_PREFETCHER = undef;	2388	our $MAP_PREFETCHER = undef;
1509		2389
1510	sub find_async {	2390	sub find_async {
1511	my ($path, $origin) = @_;	2391	my ($path, $origin, $load) = @_;
1512		2392
1513	$path = normalise $path, $origin && $origin->{path};	2393	$path = normalise $path, $origin;
1514		2394
1515	if (my $map = $cf::MAP{$path}) {	2395	if (my $map = $cf::MAP{$path}) {
1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2396	return $map if !$load || $map->linkable;
1517	}	2397	}
1518		2398
1519	undef $MAP_PREFETCH{$path};	2399	$MAP_PREFETCH{$path} |= $load;
		2400
1520	$MAP_PREFETCHER ||= cf::async {	2401	$MAP_PREFETCHER ||= cf::async {
		2402	$Coro::current->{desc} = "map prefetcher";
		2403
1521	while (%MAP_PREFETCH) {	2404	while (%MAP_PREFETCH) {
1522	for my $path (keys %MAP_PREFETCH) {	2405	for my $k (keys %MAP_PREFETCH) {
1523	my $map = find $path	2406	if (my $map = find $k) {
1524	or next;	2407	$map->load if $MAP_PREFETCH{$k};
1525	$map->load;	2408	}
1526		2409
1527	delete $MAP_PREFETCH{$path};	2410	delete $MAP_PREFETCH{$k};
1528	}	2411	}
1529	}	2412	}
1530	undef $MAP_PREFETCHER;	2413	undef $MAP_PREFETCHER;
1531	};	2414	};
1532	$MAP_PREFETCHER->prio (6);	2415	$MAP_PREFETCHER->prio (6);
1533		2416
1534	()	2417	()
1535	}	2418	}
1536		2419
		2420	# common code, used by both ->save and ->swapout
1537	sub save {	2421	sub _save {
1538	my ($self) = @_;	2422	my ($self) = @_;
1539
1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
1541		2423
1542	$self->{last_save} = $cf::RUNTIME;	2424	$self->{last_save} = $cf::RUNTIME;
1543		2425
1544	return unless $self->dirty;	2426	return unless $self->dirty;
1545		2427
…		…
1551	return if $self->{deny_save};	2433	return if $self->{deny_save};
1552		2434
1553	local $self->{last_access} = $self->last_access;#d#	2435	local $self->{last_access} = $self->last_access;#d#
1554		2436
1555	cf::async {	2437	cf::async {
		2438	$Coro::current->{desc} = "map player save";
1556	$_->contr->save for $self->players;	2439	$_->contr->save for $self->players;
1557	};	2440	};
		2441
		2442	cf::get_slot 0.02;
1558		2443
1559	if ($uniq) {	2444	if ($uniq) {
1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2445	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2446	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1562	} else {	2447	} else {
1563	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2448	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1564	}	2449	}
1565	}	2450	}
1566		2451
		2452	sub save {
		2453	my ($self) = @_;
		2454
		2455	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2456
		2457	$self->_save;
		2458	}
		2459
1567	sub swap_out {	2460	sub swap_out {
1568	my ($self) = @_;	2461	my ($self) = @_;
1569		2462
1570	# save first because save cedes
1571	$self->save;
1572
1573	my $lock = cf::lock_acquire "map_data:" . $self->path;	2463	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		2464
		2465	return if !$self->linkable;
		2466	return if $self->{deny_save};
1575	return if $self->players;	2467	return if $self->players;
1576	return if $self->in_memory != cf::MAP_IN_MEMORY;
1577	return if $self->{deny_save};
1578		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
1579	$self->clear;	2478	$self->clear;
1580	$self->in_memory (cf::MAP_SWAPPED);
1581	}	2479	}
1582		2480
1583	sub reset_at {	2481	sub reset_at {
1584	my ($self) = @_;	2482	my ($self) = @_;
1585		2483
1586	# TODO: safety, remove and allow resettable per-player maps	2484	# TODO: safety, remove and allow resettable per-player maps
1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
1588	return 1e99 if $self->{deny_reset};	2485	return 1e99 if $self->{deny_reset};
1589		2486
1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2487	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1591	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2488	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1592		2489
…		…
1603	my ($self) = @_;	2500	my ($self) = @_;
1604		2501
1605	my $lock = cf::lock_acquire "map_data:$self->{path}";	2502	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2503
1607	return if $self->players;	2504	return if $self->players;
1608	return if $self->isa ("ext::map_per_player");#d#
1609		2505
1610	warn "resetting map ", $self->path;#d#	2506	cf::trace "resetting map ", $self->path, "\n";
1611		2507
1612	$self->in_memory (cf::MAP_SWAPPED);	2508	$self->state (cf::MAP_SWAPPED);
1613		2509
1614	# need to save uniques path	2510	# need to save uniques path
1615	unless ($self->{deny_save}) {	2511	unless ($self->{deny_save}) {
1616	my $uniq = $self->uniq_path; utf8::encode $uniq;	2512	my $uniq = $self->uniq_path; utf8::encode $uniq;
1617		2513
…		…
1619	if $uniq;	2515	if $uniq;
1620	}	2516	}
1621		2517
1622	delete $cf::MAP{$self->path};	2518	delete $cf::MAP{$self->path};
1623		2519
		2520	$self->deactivate;
		2521	$_->clear_links_to ($self) for values %cf::MAP;
1624	$self->clear;	2522	$self->clear;
1625
1626	$_->clear_links_to ($self) for values %cf::MAP;
1627		2523
1628	$self->unlink_save;	2524	$self->unlink_save;
1629	$self->destroy;	2525	$self->destroy;
1630	}	2526	}
1631		2527
1632	my $nuke_counter = "aaaa";	2528	my $nuke_counter = "aaaa";
1633		2529
1634	sub nuke {	2530	sub nuke {
1635	my ($self) = @_;	2531	my ($self) = @_;
1636		2532
		2533	{
		2534	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2535
1637	delete $cf::MAP{$self->path};	2536	delete $cf::MAP{$self->path};
1638		2537
1639	$self->unlink_save;	2538	$self->unlink_save;
1640		2539
1641	bless $self, "cf::map";	2540	bless $self, "cf::map::wrap";
1642	delete $self->{deny_reset};	2541	delete $self->{deny_reset};
1643	$self->{deny_save} = 1;	2542	$self->{deny_save} = 1;
1644	$self->reset_timeout (1);	2543	$self->reset_timeout (1);
1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2544	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646		2545
1647	$cf::MAP{$self->path} = $self;	2546	$cf::MAP{$self->path} = $self;
		2547	}
1648		2548
1649	$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	]
1650	}	2586	}
1651		2587
1652	=item cf::map::unique_maps	2588	=item cf::map::unique_maps
1653		2589
1654	Returns an arrayref of paths of all shared maps that have	2590	Returns an arrayref of paths of all shared maps that have
1655	instantiated unique items. May block.	2591	instantiated unique items. May block.
1656		2592
1657	=cut	2593	=cut
1658		2594
1659	sub unique_maps() {	2595	sub unique_maps() {
1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2596	[
1661	or return;	2597	map {
1662
1663	my @paths;
1664
1665	for (@$files) {
1666	utf8::decode $_;	2598	utf8::decode $_;
1667	next if /\.pst$/;	2599	s/\.map$//; # TODO future compatibility hack
1668	next unless /^$PATH_SEP/o;	2600	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1669		2601	? ()
1670	push @paths, cf::map::normalise $_;	2602	: normalise $_
		2603	} @{ aio_readdir $UNIQUEDIR or [] }
1671	}	2604	]
1672
1673	\@paths
1674	}	2605	}
1675		2606
1676	package cf;	2607	=item cf::map::static_maps
		2608
		2609	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2610	file in the shared directory excluding F</styles> and F</editor>). May
		2611	block.
		2612
		2613	=cut
		2614
		2615	sub static_maps() {
		2616	my @dirs = "";
		2617	my @maps;
		2618
		2619	while (@dirs) {
		2620	my $dir = shift @dirs;
		2621
		2622	next if $dir eq "/styles" || $dir eq "/editor";
		2623
		2624	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2625	or return;
		2626
		2627	for (@$files) {
		2628	s/\.map$// or next;
		2629	utf8::decode $_;
		2630	push @maps, "$dir/$_";
		2631	}
		2632
		2633	push @dirs, map "$dir/$_", @$dirs;
		2634	}
		2635
		2636	\@maps
		2637	}
1677		2638
1678	=back	2639	=back
1679		2640
1680	=head3 cf::object	2641	=head3 cf::object
1681		2642
…		…
1685		2646
1686	=over 4	2647	=over 4
1687		2648
1688	=item $ob->inv_recursive	2649	=item $ob->inv_recursive
1689		2650
1690	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.
1691		2653
1692	=cut	2654	=cut
1693		2655
1694	sub inv_recursive_;	2656	sub inv_recursive_;
1695	sub inv_recursive_ {	2657	sub inv_recursive_ {
…		…
1698		2660
1699	sub inv_recursive {	2661	sub inv_recursive {
1700	inv_recursive_ inv $_[0]	2662	inv_recursive_ inv $_[0]
1701	}	2663	}
1702		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
1703	package cf;	2693	package cf;
1704		2694
1705	=back	2695	=back
1706		2696
1707	=head3 cf::object::player	2697	=head3 cf::object::player
…		…
1713	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>
1714	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
1715	dialogue with the given NPC character.	2705	dialogue with the given NPC character.
1716		2706
1717	=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	};
1718		2722
1719	# rough implementation of a future "reply" method that works	2723	# rough implementation of a future "reply" method that works
1720	# with dialog boxes.	2724	# with dialog boxes.
1721	#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
1722	sub cf::object::player::reply($$$;$) {	2726	sub cf::object::player::reply($$$;$) {
…		…
1724		2728
1725	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1726		2730
1727	if ($self->{record_replies}) {	2731	if ($self->{record_replies}) {
1728	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2733
1729	} 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 {
1730	$msg = $npc->name . " says: $msg" if $npc;	2742	$msg = $npc->name . " says: $msg" if $npc;
1731	$self->message ($msg, $flags);	2743	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2744	}
1732	}	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 (@_);
1733	}	2756	}
1734		2757
1735	=item $player_object->may ("access")	2758	=item $player_object->may ("access")
1736		2759
1737	Returns wether the given player is authorized to access resource "access"	2760	Returns wether the given player is authorized to access resource "access"
1738	(e.g. "command_wizcast").	2761	(e.g. "command_wizcast").
1739		2762
		2763	This is implemented by checking a config setting of C<may_access> where
		2764	C<access> is replaced by the access string. The following alternatives are
		2765	possible (and are tested in order):
		2766
		2767	=over 4
		2768
		2769	=item * Player is DM
		2770
		2771	The request will succeed.
		2772
		2773	=item * may_access is an array reference
		2774
		2775	If either the player nickname or UUID is in the array, the request will
		2776	succeed, otherwise it will fail.
		2777
		2778	=item * may_access is a true value
		2779
		2780	The request will succeed.
		2781
		2782	=item * may_access is missing or false
		2783
		2784	The request will fail.
		2785
		2786	=back
		2787
1740	=cut	2788	=cut
1741		2789
1742	sub cf::object::player::may {	2790	sub cf::object::player::may {
1743	my ($self, $access) = @_;	2791	my ($self, $access) = @_;
1744		2792
1745	$self->flag (cf::FLAG_WIZ) ||	2793	$self->flag (cf::FLAG_WIZ) ||
1746	(ref $cf::CFG{"may_$access"}	2794	(ref $cf::CFG{"may_$access"}
1747	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2795	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1748	: $cf::CFG{"may_$access"})	2796	: $cf::CFG{"may_$access"})
1749	}	2797	}
1750		2798
1751	=item $player_object->enter_link	2799	=item $player_object->enter_link
1752		2800
1753	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}>).
1754		2802
1755	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.
1756	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.
1757		2807
1758	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.
1759		2815
1760	=item $player_object->leave_link ($map, $x, $y)	2816	=item $player_object->leave_link ($map, $x, $y)
1761		2817
1762	Moves the player out of the special C<{link}> map onto the specified	2818	Moves the player out of the special C<{link}> map onto the specified
1763	map. If the map is not valid (or omitted), the player will be moved back	2819	map. If the map is not valid (or omitted), the player will be moved back
…		…
1781	sub cf::object::player::enter_link {	2837	sub cf::object::player::enter_link {
1782	my ($self) = @_;	2838	my ($self) = @_;
1783		2839
1784	$self->deactivate_recursive;	2840	$self->deactivate_recursive;
1785		2841
		2842	++$self->{_link_recursion};
		2843
1786	return if UNIVERSAL::isa $self->map, "ext::map_link";	2844	return if UNIVERSAL::isa $self->map, "ext::map_link";
1787		2845
1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2846	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1789	if $self->map;	2847	if $self->map && $self->map->{path} ne "{link}";
1790		2848
1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2849	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1792	}	2850	}
1793		2851
1794	sub cf::object::player::leave_link {	2852	sub cf::object::player::leave_link {
1795	my ($self, $map, $x, $y) = @_;	2853	my ($self, $map, $x, $y) = @_;
		2854
		2855	return unless $self->contr->active;
1796		2856
1797	my $link_pos = delete $self->{_link_pos};	2857	my $link_pos = delete $self->{_link_pos};
1798		2858
1799	unless ($map) {	2859	unless ($map) {
1800	# restore original map position	2860	# restore original map position
…		…
1811	($x, $y) = (-1, -1)	2871	($x, $y) = (-1, -1)
1812	unless (defined $x) && (defined $y);	2872	unless (defined $x) && (defined $y);
1813		2873
1814	# use -1 or undef as default coordinates, not 0, 0	2874	# use -1 or undef as default coordinates, not 0, 0
1815	($x, $y) = ($map->enter_x, $map->enter_y)	2875	($x, $y) = ($map->enter_x, $map->enter_y)
1816	if $x <=0 && $y <= 0;	2876	if $x <= 0 && $y <= 0;
1817		2877
1818	$map->load;	2878	$map->load;
1819	$map->load_diag;
1820		2879
1821	return unless $self->contr->active;	2880	return unless $self->contr->active;
1822	$self->activate_recursive;
1823		2881
1824	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2882	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1825	$self->enter_map ($map, $x, $y);	2883	if ($self->enter_map ($map, $x, $y)) {
1826	}	2884	# entering was successful
1827		2885	delete $self->{_link_recursion};
1828	cf::player->attach (	2886	# only activate afterwards, to support waiting in hooks
1829	on_logout => sub {	2887	$self->activate_recursive;
1830	my ($pl) = @_;
1831
1832	# abort map switching before logout
1833	if ($pl->ob->{_link_pos}) {
1834	cf::sync_job {
1835	$pl->ob->leave_link
1836	};
1837	}
1838	},	2888	}
1839	on_login => sub {
1840	my ($pl) = @_;
1841		2889
1842	# try to abort aborted map switching on player login :)	2890	}
1843	# should happen only on crashes
1844	if ($pl->ob->{_link_pos}) {
1845	$pl->ob->enter_link;
1846	(async {
1847	$pl->ob->reply (undef,
1848	"There was an internal problem at your last logout, "
1849	. "the server will try to bring you to your intended destination in a second.",
1850	cf::NDI_RED);
1851	# we need this sleep as the login has a concurrent enter_exit running
1852	# and this sleep increases chances of the player not ending up in scorn
1853	Coro::Timer::sleep 1;
1854	$pl->ob->leave_link;
1855	})->prio (2);
1856	}
1857	},
1858	);
1859		2891
1860	=item $player_object->goto ($path, $x, $y)	2892	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1861		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
1862	=cut	2903	=cut
		2904
		2905	our $GOTOGEN;
1863		2906
1864	sub cf::object::player::goto {	2907	sub cf::object::player::goto {
1865	my ($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;
1866		2918
1867	$self->enter_link;	2919	$self->enter_link;
1868		2920
1869	(async {	2921	(async {
		2922	$Coro::current->{desc} = "player::goto $path $x $y";
		2923
		2924	# *tag paths override both path and x|y
		2925	if ($path =~ /^\*(.*)$/) {
		2926	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2927	my $ob = $obs[rand @obs];
		2928
		2929	# see if we actually can go there
		2930	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2931	$ob = $obs[rand @obs];
		2932	} else {
		2933	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2934	}
		2935	# else put us there anyways for now #d#
		2936
		2937	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2938	} else {
		2939	($path, $x, $y) = (undef, undef, undef);
		2940	}
		2941	}
		2942
1870	my $map = eval {	2943	my $map = eval {
1871	my $map = cf::map::find $path;	2944	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2945
		2946	if ($map) {
1872	$map = $map->customise_for ($self) if $map;	2947	$map = $map->customise_for ($self);
		2948	$map = $check->($map, $x, $y, $self) if $check && $map;
		2949	} else {
		2950	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2951	}
		2952
1873	$map	2953	$map
		2954	};
		2955
		2956	if ($@) {
		2957	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2958	LOG llevError | logBacktrace, Carp::longmess $@;
1874	} or	2959	}
1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1876		2960
		2961	if ($gen == $self->{_goto_generation}) {
		2962	delete $self->{_goto_generation};
1877	$self->leave_link ($map, $x, $y);	2963	$self->leave_link ($map, $x, $y);
		2964	}
		2965
		2966	$done->($self) if $done;
1878	})->prio (1);	2967	})->prio (1);
1879	}	2968	}
1880		2969
1881	=item $player_object->enter_exit ($exit_object)	2970	=item $player_object->enter_exit ($exit_object)
1882		2971
…		…
1902	}	2991	}
1903		2992
1904	sub prepare_random_map {	2993	sub prepare_random_map {
1905	my ($exit) = @_;	2994	my ($exit) = @_;
1906		2995
1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
1908
1909	# all this does is basically replace the /! path by	2996	# all this does is basically replace the /! path by
1910	# a new random map path (?random/...) with a seed	2997	# a new random map path (?random/...) with a seed
1911	# that depends on the exit object	2998	# that depends on the exit object
1912		2999
1913	my $rmp = parse_random_map_params $exit->msg;	3000	my $rmp = parse_random_map_params $exit->msg;
…		…
1915	if ($exit->map) {	3002	if ($exit->map) {
1916	$rmp->{region} = $exit->region->name;	3003	$rmp->{region} = $exit->region->name;
1917	$rmp->{origin_map} = $exit->map->path;	3004	$rmp->{origin_map} = $exit->map->path;
1918	$rmp->{origin_x} = $exit->x;	3005	$rmp->{origin_x} = $exit->x;
1919	$rmp->{origin_y} = $exit->y;	3006	$rmp->{origin_y} = $exit->y;
		3007
		3008	$exit->map->touch;
1920	}	3009	}
1921		3010
1922	$rmp->{random_seed} ||= $exit->random_seed;	3011	$rmp->{random_seed} ||= $exit->random_seed;
1923		3012
1924	my $data = cf::to_json $rmp;	3013	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1925	my $md5 = Digest::MD5::md5_hex $data;	3014	my $md5 = Digest::MD5::md5_hex $data;
1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	3015	my $meta = "$RANDOMDIR/$md5.meta";
1927		3016
1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3017	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1929	aio_write $fh, 0, (length $data), $data, 0;	3018	aio_write $fh, 0, (length $data), $data, 0;
1930	undef $fh;	3019	undef $fh;
1931	aio_rename "$meta~", $meta;	3020	aio_rename "$meta~", $meta;
1932		3021
		3022	my $slaying = "?random/$md5";
		3023
		3024	if ($exit->valid) {
1933	$exit->slaying ("?random/$md5");	3025	$exit->slaying ("?random/$md5");
1934	$exit->msg (undef);	3026	$exit->msg (undef);
		3027	}
1935	}	3028	}
1936	}	3029	}
1937		3030
1938	sub cf::object::player::enter_exit {	3031	sub cf::object::player::enter_exit {
1939	my ($self, $exit) = @_;	3032	my ($self, $exit) = @_;
1940		3033
1941	return unless $self->type == cf::PLAYER;	3034	return unless $self->type == cf::PLAYER;
1942		3035
1943	if ($exit->slaying eq "/!") {
1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
1945	cf::sync_job { prepare_random_map $exit };
1946	}
1947
1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949	my $hp = $exit->stats->hp;
1950	my $sp = $exit->stats->sp;
1951
1952	$self->enter_link;	3036	$self->enter_link;
1953		3037
1954	(async {	3038	(async {
1955	$self->deactivate_recursive; # just to be sure	3039	$Coro::current->{desc} = "enter_exit";
		3040
1956	unless (eval {	3041	unless (eval {
		3042	$self->deactivate_recursive; # just to be sure
		3043
		3044	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3045	my $x = $exit->stats->hp;
		3046	my $y = $exit->stats->sp;
		3047
		3048	# special map handling
		3049	my $slaying = $exit->slaying;
		3050
		3051	# special map handling
		3052	if ($slaying eq "/!") {
		3053	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3054
		3055	prepare_random_map $exit
		3056	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3057
		3058	$map = $exit->slaying;
		3059
		3060	} elsif ($slaying eq '!up') {
		3061	$map = $exit->map->tile_path (cf::TILE_UP);
		3062	$x = $exit->x;
		3063	$y = $exit->y;
		3064
		3065	} elsif ($slaying eq '!down') {
		3066	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3067	$x = $exit->x;
		3068	$y = $exit->y;
		3069	}
		3070
1957	$self->goto ($slaying, $hp, $sp);	3071	$self->goto ($map, $x, $y);
1958		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
1959	1;	3077	1
1960	}) {	3078	}) {
1961	$self->message ("Something went wrong deep within the crossfire server. "	3079	$self->message ("Something went wrong deep within the deliantra server. "
1962	. "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. "
1963	. "Please report this to the dungeon master!",	3081	. "Please report this to the dungeon master!",
1964	cf::NDI_UNIQUE | cf::NDI_RED);	3082	cf::NDI_UNIQUE | cf::NDI_RED);
1965		3083
1966	warn "ERROR in enter_exit: $@";	3084	error "ERROR in enter_exit: $@";
1967	$self->leave_link;	3085	$self->leave_link;
1968	}	3086	}
1969	})->prio (1);	3087	})->prio (1);
1970	}	3088	}
1971		3089
1972	=head3 cf::client	3090	=head3 cf::client
1973		3091
1974	=over 4	3092	=over 4
1975		3093
1976	=item $client->send_drawinfo ($text, $flags)	3094	=item $client->send_big_packet ($pkt)
1977		3095
1978	Sends a drawinfo packet to the client. Circumvents output buffering so	3096	Like C<send_packet>, but tries to compress large packets, and fragments
1979	should not be used under normal circumstances.	3097	them as required.
1980		3098
1981	=cut	3099	=cut
1982		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" => $CHAT_CHANNEL,
		3246	);
		3247
1983	sub cf::client::send_drawinfo {	3248	sub cf::client::send_msg {
		3249	my ($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($$@) {
1984	my ($self, $text, $flags) = @_;	3294	my ($self, $type, @msg) = @_;
1985		3295
1986	utf8::encode $text;	3296	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1987	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1988	}	3297	}
1989
1990		3298
1991	=item $success = $client->query ($flags, "text", \&cb)	3299	=item $success = $client->query ($flags, "text", \&cb)
1992		3300
1993	Queues a query to the client, calling the given callback with	3301	Queues a query to the client, calling the given callback with
1994	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>,
1995	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>.
1996		3304
1997	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
1998	reliable at some point in the future.	3306	become reliable at some point in the future.
1999		3307
2000	=cut	3308	=cut
2001		3309
2002	sub cf::client::query {	3310	sub cf::client::query {
2003	my ($self, $flags, $text, $cb) = @_;	3311	my ($self, $flags, $text, $cb) = @_;
…		…
2011	utf8::encode $text;	3319	utf8::encode $text;
2012	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3320	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2013		3321
2014	$self->send_packet ($self->{query_queue}[0][0])	3322	$self->send_packet ($self->{query_queue}[0][0])
2015	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;
2016	}	3365	}
2017		3366
2018	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	},
2019	on_reply => sub {	3373	on_reply => sub {
2020	my ($ns, $msg) = @_;	3374	my ($ns, $msg) = @_;
2021		3375
2022	# this weird shuffling is so that direct followup queries	3376	# this weird shuffling is so that direct followup queries
2023	# get handled first	3377	# get handled first
…		…
2035	} else {	3389	} else {
2036	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3390	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2037	}	3391	}
2038	}	3392	}
2039	},	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	},
2040	);	3427	);
2041		3428
2042	=item $client->async (\&cb)	3429	=item $client->async (\&cb)
2043		3430
2044	Create a new coroutine, running the specified callback. The coroutine will	3431	Create a new coroutine, running the specified callback. The coroutine will
…		…
2060		3447
2061	$coro	3448	$coro
2062	}	3449	}
2063		3450
2064	cf::client->attach (	3451	cf::client->attach (
2065	on_destroy => sub {	3452	on_client_destroy => sub {
2066	my ($ns) = @_;	3453	my ($ns) = @_;
2067		3454
2068	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3455	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2069	},	3456	},
2070	);	3457	);
…		…
2085	our $safe = new Safe "safe";	3472	our $safe = new Safe "safe";
2086	our $safe_hole = new Safe::Hole;	3473	our $safe_hole = new Safe::Hole;
2087		3474
2088	$SIG{FPE} = 'IGNORE';	3475	$SIG{FPE} = 'IGNORE';
2089		3476
2090	$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	));
2091		3482
2092	# here we export the classes and methods available to script code	3483	# here we export the classes and methods available to script code
2093		3484
2094	=pod	3485	=pod
2095		3486
2096	The following fucntions and emthods are available within a safe environment:	3487	The following functions and methods are available within a safe environment:
2097		3488
2098	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
2099	cf::object::player player	3494	cf::object::player
2100	cf::player peaceful	3495	player
2101	cf::map trigger	3496
		3497	cf::player
		3498	peaceful
		3499
		3500	cf::map
		3501	trigger
2102		3502
2103	=cut	3503	=cut
2104		3504
2105	for (	3505	for (
2106	["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)],
2107	["cf::object::player" => qw(player)],	3509	["cf::object::player" => qw(player)],
2108	["cf::player" => qw(peaceful)],	3510	["cf::player" => qw(peaceful send_msg)],
2109	["cf::map" => qw(trigger)],	3511	["cf::map" => qw(trigger)],
2110	) {	3512	) {
2111	no strict 'refs';
2112	my ($pkg, @funs) = @$_;	3513	my ($pkg, @funs) = @$_;
2113	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3514	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2114	for @funs;	3515	for @funs;
2115	}	3516	}
2116		3517
…		…
2131		3532
2132	my $qcode = $code;	3533	my $qcode = $code;
2133	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3534	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2134	$qcode =~ s/\n/\\n/g;	3535	$qcode =~ s/\n/\\n/g;
2135		3536
		3537	%vars = (_dummy => 0) unless %vars;
		3538
		3539	my @res;
2136	local $_;	3540	local $_;
2137	local @safe::cf::_safe_eval_args = values %vars;
2138		3541
2139	my $eval =	3542	my $eval =
2140	"do {\n"	3543	"do {\n"
2141	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3544	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2142	. "#line 0 \"{$qcode}\"\n"	3545	. "#line 0 \"{$qcode}\"\n"
2143	. $code	3546	. $code
2144	. "\n}"	3547	. "\n}"
2145	;	3548	;
2146		3549
		3550	if ($CFG{safe_eval}) {
2147	sub_generation_inc;	3551	sub_generation_inc;
		3552	local @safe::cf::_safe_eval_args = values %vars;
2148	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3553	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2149	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	}
2150		3559
2151	if ($@) {	3560	if ($@) {
2152	warn "$@";	3561	warn "$@",
2153	warn "while executing safe code '$code'\n";	3562	"while executing safe code '$code'\n",
2154	warn "with arguments " . (join " ", %vars) . "\n";	3563	"with arguments " . (join " ", %vars) . "\n";
2155	}	3564	}
2156		3565
2157	wantarray ? @res : $res[0]	3566	wantarray ? @res : $res[0]
2158	}	3567	}
2159		3568
…		…
2173	=cut	3582	=cut
2174		3583
2175	sub register_script_function {	3584	sub register_script_function {
2176	my ($fun, $cb) = @_;	3585	my ($fun, $cb) = @_;
2177		3586
2178	no strict 'refs';	3587	$fun = "safe::$fun" if $CFG{safe_eval};
2179	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3588	*$fun = $safe_hole->wrap ($cb);
2180	}	3589	}
2181		3590
2182	=back	3591	=back
2183		3592
2184	=cut	3593	=cut
2185
2186	#############################################################################
2187
2188	=head2 EXTENSION DATABASE SUPPORT
2189
2190	Crossfire maintains a very simple database for extension use. It can
2191	currently store anything that can be serialised using Storable, which
2192	excludes objects.
2193
2194	The parameter C<$family> should best start with the name of the extension
2195	using it, it should be unique.
2196
2197	=over 4
2198
2199	=item $value = cf::db_get $family => $key
2200
2201	Returns a single value from the database.
2202
2203	=item cf::db_put $family => $key => $value
2204
2205	Stores the given C<$value> in the family.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	sub db_init {
2212	unless ($DB) {
2213	$DB = BDB::db_create $DB_ENV;
2214
2215	cf::sync_job {
2216	eval {
2217	$DB->set_flags (BDB::CHKSUM);
2218
2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221	cf::cleanup "db_open(db): $!" if $!;
2222	};
2223	cf::cleanup "db_open(db): $@" if $@;
2224	};
2225
2226	my $path = cf::localdir . "/database.pst";
2227	if (stat $path) {
2228	cf::sync_job {
2229	my $pst = Storable::retrieve $path;
2230
2231	cf::db_put (board => data => $pst->{board});
2232	cf::db_put (guildrules => data => $pst->{guildrules});
2233	cf::db_put (rent => balance => $pst->{rent}{balance});
2234	BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236	unlink $path;
2237	};
2238	}
2239	}
2240	}
2241
2242	sub db_get($$) {
2243	my $key = "$_[0]/$_[1]";
2244
2245	cf::sync_job {
2246	BDB::db_get $DB, undef, $key, my $data;
2247
2248	$! ? ()
2249	: Compress::LZF::sthaw $data
2250	}
2251	}
2252
2253	sub db_put($$$) {
2254	BDB::dbreq_pri 4;
2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2256	}
2257		3594
2258	#############################################################################	3595	#############################################################################
2259	# the server's init and main functions	3596	# the server's init and main functions
2260		3597
		3598	{
		3599	package cf::face;
		3600
		3601	our %HASH; # hash => idx
		3602	our @DATA; # dynamically-created facedata, only faceste 0 used
		3603	our @FOFS; # file offset, if > 0
		3604	our @SIZE; # size of face, in octets
		3605	our @META; # meta hash of face, if any
		3606	our $DATAFH; # facedata filehandle
		3607
		3608	# internal api, not finalised
		3609	sub set {
		3610	my ($name, $type, $data) = @_;
		3611
		3612	my $idx = cf::face::find $name;
		3613
		3614	if ($idx) {
		3615	delete $HASH{cf::face::get_csum $idx};
		3616	} else {
		3617	$idx = cf::face::alloc $name;
		3618	}
		3619
		3620	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3621
		3622	cf::face::set_type $idx, $type;
		3623	cf::face::set_csum $idx, 0, $hash;
		3624
		3625	# we need to destroy the SV itself, not just modify it, as a running ix
		3626	# might hold a reference to it: "delete" achieves that.
		3627	delete $FOFS[0][$idx];
		3628	delete $DATA[0][$idx];
		3629	$DATA[0][$idx] = $data;
		3630	$SIZE[0][$idx] = length $data;
		3631	delete $META[$idx];
		3632	$HASH{$hash} = $idx;#d#
		3633
		3634	$idx
		3635	}
		3636
		3637	sub _get_data($$$) {
		3638	my ($idx, $set, $cb) = @_;
		3639
		3640	if (defined $DATA[$set][$idx]) {
		3641	$cb->($DATA[$set][$idx]);
		3642	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3643	my $size = $SIZE[$set][$idx];
		3644	my $buf;
		3645	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3646	if ($_[0] == $size) {
		3647	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3648	$cb->($buf);
		3649	} else {
		3650	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3651	}
		3652	};
		3653	} else {
		3654	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3655	}
		3656	}
		3657
		3658	# rather ineffient
		3659	sub cf::face::get_data($;$) {
		3660	my ($idx, $set) = @_;
		3661
		3662	_get_data $idx, $set, Coro::rouse_cb;
		3663	Coro::rouse_wait
		3664	}
		3665
		3666	sub cf::face::ix {
		3667	my ($ns, $set, $idx, $pri) = @_;
		3668
		3669	_get_data $idx, $set, sub {
		3670	$ns->ix_send ($idx, $pri, $_[0]);
		3671	};
		3672	}
		3673	}
		3674
		3675	sub load_facedata($) {
		3676	my ($path) = @_;
		3677
		3678	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3679
		3680	trace "loading facedata from $path\n";
		3681
		3682	my $facedata = decode_storable load_file "$path/faceinfo";
		3683
		3684	$facedata->{version} == 2
		3685	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3686
		3687	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3688	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3689
		3690	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3691
		3692	# BEGIN ATOMIC
		3693	# from here on, everything must be atomic - no thread switch allowed
		3694	my $t1 = EV::time;
		3695
		3696	{
		3697	my $faces = $facedata->{faceinfo};
		3698
		3699	for my $face (sort keys %$faces) {
		3700	my $info = $faces->{$face};
		3701	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3702
		3703	cf::face::set_visibility $idx, $info->{visibility};
		3704	cf::face::set_magicmap $idx, $info->{magicmap};
		3705	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3706	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3707	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3708	$cf::face::HASH{$info->{hash64}} = $idx;
		3709	delete $cf::face::META[$idx];
		3710	}
		3711
		3712	while (my ($face, $info) = each %$faces) {
		3713	next unless $info->{smooth};
		3714
		3715	my $idx = cf::face::find $face
		3716	or next;
		3717
		3718	if (my $smooth = cf::face::find $info->{smooth}) {
		3719	cf::face::set_smooth $idx, $smooth;
		3720	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3721	} else {
		3722	error "smooth face '$info->{smooth}' not found for face '$face'";
		3723	}
		3724	}
		3725	}
		3726
		3727	{
		3728	my $anims = $facedata->{animinfo};
		3729
		3730	while (my ($anim, $info) = each %$anims) {
		3731	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3732	}
		3733
		3734	cf::anim::invalidate_all; # d'oh
		3735	}
		3736
		3737	{
		3738	my $res = $facedata->{resource};
		3739
		3740	while (my ($name, $info) = each %$res) {
		3741	if (defined (my $type = $info->{type})) {
		3742	# TODO: different hash - must free and use new index, or cache ixface data queue
		3743	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3744
		3745	cf::face::set_type $idx, $type;
		3746	cf::face::set_csum $idx, 0, $info->{hash};
		3747	$cf::face::SIZE[0][$idx] = $info->{size};
		3748	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3749	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3750	$cf::face::HASH{$info->{hash}} = $idx;
		3751	} else {
		3752	# $RESOURCE{$name} = $info; # unused
		3753	}
		3754	}
		3755	}
		3756
		3757	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3758
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	# END ATOMIC
		3764
		3765	cf::debug "facedata atomic update time ", EV::time - $t1;
		3766
		3767	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3768
		3769	aio_close $fh if $fh; # close old facedata
		3770
		3771	1
		3772	}
		3773
		3774	register_exticmd fx_want => sub {
		3775	my ($ns, $want) = @_;
		3776
		3777	while (my ($k, $v) = each %$want) {
		3778	$ns->fx_want ($k, $v);
		3779	}
		3780	};
		3781
2261	sub load_resources {	3782	sub load_resource_file($) {
2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3783	my $guard = lock_acquire "load_resource_file";
		3784
		3785	my $status = load_resource_file_ $_[0];
		3786	get_slot 0.1, 100;
		3787	cf::arch::commit_load;
		3788
		3789	$status
		3790	}
		3791
		3792	sub reload_exp_table {
		3793	_reload_exp_table;
		3794
		3795	cf::face::set
		3796	"res/exp_table" => FT_RSRC,
		3797	JSON::XS->new->utf8->canonical->encode (
		3798	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3799	);
		3800	}
		3801
		3802	sub reload_materials {
		3803	_reload_materials;
		3804	}
		3805
		3806	sub reload_regions {
		3807	# HACK to clear player env face cache, we need some signal framework
		3808	# for this (global event?)
		3809	%ext::player_env::MUSIC_FACE_CACHE = ();
		3810
		3811	load_resource_file "$MAPDIR/regions"
2263	or die "unable to load regions file\n";#d#	3812	or die "unable to load regions file\n";
2264	}
2265		3813
2266	sub cfg_load {	3814	for (cf::region::list) {
2267	open my $fh, "<:utf8", cf::confdir . "/config"	3815	$_->{match} = qr/$_->{match}/
2268	or return;	3816	if exists $_->{match};
		3817	}
		3818	}
2269		3819
2270	local $/;	3820	sub reload_facedata {
2271	*CFG = YAML::Syck::Load <$fh>;	3821	load_facedata $DATADIR
		3822	or die "unable to load facedata\n";
		3823	}
2272		3824
		3825	sub reload_archetypes {
		3826	load_resource_file "$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
2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3902	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2274		3903
2275	$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};
2276	$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};
2277		3906
2278	if (exists $CFG{mlockall}) {	3907	if (exists $CFG{mlockall}) {
…		…
2282	};	3911	};
2283	warn $@ if $@;	3912	warn $@ if $@;
2284	}	3913	}
2285	}	3914	}
2286		3915
2287	sub init {	3916	sub pidfile() {
2288	load_resources;	3917	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3918	or die "$PIDFILE: $!";
		3919	flock $fh, &Fcntl::LOCK_EX
		3920	or die "$PIDFILE: flock: $!";
		3921	$fh
		3922	}
		3923
		3924	# make sure only one server instance is running at any one time
		3925	sub atomic {
		3926	my $fh = pidfile;
		3927
		3928	my $pid = <$fh>;
		3929	kill 9, $pid if $pid > 0;
		3930
		3931	seek $fh, 0, 0;
		3932	print $fh $$;
		3933	}
		3934
		3935	sub main_loop {
		3936	trace "EV::run starting\n";
		3937	if (1) {
		3938	EV::run;
		3939	}
		3940	trace "EV::run returned\n";
		3941	goto &main_loop unless $REALLY_UNLOOP;
2289	}	3942	}
2290		3943
2291	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
2292	# we must not ever block the main coroutine	3955	# we must not ever block the main coroutine
2293	local $Coro::idle = sub {	3956	$Coro::idle = sub {
2294	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#
2295	(async {	3958	(async {
2296	Event::one_event;	3959	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3960	EV::run EV::RUN_ONCE;
2297	})->prio (Coro::PRIO_MAX);	3961	})->prio (Coro::PRIO_MAX);
2298	};	3962	};
2299		3963
2300	cfg_load;	3964	evthread_start IO::AIO::poll_fileno;
		3965
		3966	cf::sync_job {
		3967	cf::incloader::init ();
		3968
2301	db_init;	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
2302	load_extensions;	3988	load_extensions;
2303		3989
2304	$TICK_WATCHER->start;	3990	utime time, time, $RUNTIMEFILE;
2305	Event::loop;	3991
		3992	# no (long-running) fork's whatsoever before this point(!)
		3993	use POSIX ();
		3994	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3995
		3996	cf::_post_init 0;
		3997	};
		3998
		3999	cf::object::thawer::errors_are_fatal 0;
		4000	info "parse errors in files are no longer fatal from this point on.\n";
		4001
		4002	AE::postpone {
		4003	undef &main; # free gobs of memory :)
		4004	};
		4005
		4006	goto &main_loop;
2306	}	4007	}
2307		4008
2308	#############################################################################	4009	#############################################################################
2309	# initialisation and cleanup	4010	# initialisation and cleanup
2310		4011
2311	# install some emergency cleanup handlers	4012	# install some emergency cleanup handlers
2312	BEGIN {	4013	BEGIN {
		4014	our %SIGWATCHER = ();
2313	for my $signal (qw(INT HUP TERM)) {	4015	for my $signal (qw(INT HUP TERM)) {
2314	Event->signal (	4016	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2315	reentrant => 0,
2316	data => WF_AUTOCANCEL,
2317	signal => $signal,
2318	prio => 0,
2319	cb => sub {
2320	cf::cleanup "SIG$signal";	4017	cf::cleanup "SIG$signal";
2321	},
2322	);	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
2323	}	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 };
2324	}	4108	}
2325		4109
2326	sub emergency_save() {	4110	sub emergency_save() {
2327	my $freeze_guard = cf::freeze_mainloop;	4111	my $freeze_guard = cf::freeze_mainloop;
2328		4112
2329	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;
2330		4119
2331	cf::sync_job {	4120	cf::sync_job {
		4121	cf::write_runtime_sync; # external watchdog should not bark
		4122
2332	# use a peculiar iteration method to avoid tripping on perl	4123	# use a peculiar iteration method to avoid tripping on perl
2333	# refcount bugs in for. also avoids problems with players	4124	# refcount bugs in for. also avoids problems with players
2334	# and maps saved/destroyed asynchronously.	4125	# and maps saved/destroyed asynchronously.
2335	warn "begin emergency player save\n";	4126	info "emergency_perl_save: begin player save\n";
2336	for my $login (keys %cf::PLAYER) {	4127	for my $login (keys %cf::PLAYER) {
2337	my $pl = $cf::PLAYER{$login} or next;	4128	my $pl = $cf::PLAYER{$login} or next;
2338	$pl->valid or next;	4129	$pl->valid or next;
		4130	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2339	$pl->save;	4131	$pl->save;
2340	}	4132	}
2341	warn "end emergency player save\n";	4133	info "emergency_perl_save: end player save\n";
2342		4134
2343	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";
2344	for my $path (keys %cf::MAP) {	4138	for my $path (keys %cf::MAP) {
2345	my $map = $cf::MAP{$path} or next;	4139	my $map = $cf::MAP{$path} or next;
2346	$map->valid or next;	4140	$map->valid or next;
2347	$map->save;	4141	$map->save;
2348	}	4142	}
2349	warn "end emergency map save\n";	4143	info "emergency_perl_save: end map save\n";
2350		4144
2351	warn "begin emergency database checkpoint\n";	4145	cf::write_runtime_sync; # external watchdog should not bark
		4146
		4147	info "emergency_perl_save: begin database checkpoint\n";
2352	BDB::db_env_txn_checkpoint $DB_ENV;	4148	BDB::db_env_txn_checkpoint $DB_ENV;
2353	warn "end emergency database checkpoint\n";	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 $DB_ENV;
		4159
		4160	info "emergency_perl_save: starting sync\n";
		4161	IO::AIO::aio_sync sub {
		4162	info "emergency_perl_save: finished sync\n";
		4163	};
		4164
		4165	cf::write_runtime_sync; # external watchdog should not bark
		4166
		4167	trace "emergency_perl_save: flushing outstanding aio requests";
		4168	while (IO::AIO::nreqs || BDB::nreqs) {
		4169	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4170	}
		4171
		4172	cf::write_runtime_sync; # external watchdog should not bark
2354	};	4173	};
2355		4174
2356	warn "leave emergency perl save\n";	4175	info "emergency_perl_save: leave\n";
2357	}	4176	}
2358		4177
2359	sub post_cleanup {	4178	sub post_cleanup {
2360	my ($make_core) = @_;	4179	my ($make_core) = @_;
2361		4180
		4181	IO::AIO::flush;
		4182
2362	warn Carp::longmess "post_cleanup backtrace"	4183	error Carp::longmess "post_cleanup backtrace"
2363	if $make_core;	4184	if $make_core;
2364	}
2365		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
2366	sub reload() {	4215	sub do_reload_perl() {
2367	# can/must only be called in main	4216	# can/must only be called in main
2368	if ($Coro::current != $Coro::main) {	4217	unless (in_main) {
2369	warn "can only reload from main coroutine";	4218	error "can only reload from main coroutine";
2370	return;	4219	return;
2371	}	4220	}
2372		4221
2373	warn "reloading...";	4222	return if $RELOAD++;
2374		4223
2375	warn "entering sync_job";	4224	my $t1 = AE::time;
2376		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
2377	cf::sync_job {	4232	cf::sync_job {
2378	cf::write_runtime; # external watchdog should not bark
2379	cf::emergency_save;	4233	#cf::emergency_save;
2380	cf::write_runtime; # external watchdog should not bark
2381		4234
2382	warn "syncing database to disk";
2383	BDB::db_env_txn_checkpoint $DB_ENV;
2384
2385	# if anything goes wrong in here, we should simply crash as we already saved
2386
2387	warn "cancelling all WF_AUTOCANCEL watchers";
2388	for (Event::all_watchers) {
2389	$_->cancel if $_->data & WF_AUTOCANCEL;
2390	}
2391
2392	warn "flushing outstanding aio requests";
2393	for (;;) {
2394	BDB::flush;
2395	IO::AIO::flush;
2396	Coro::cede;
2397	last unless IO::AIO::nreqs || BDB::nreqs;
2398	warn "iterate...";
2399	}
2400
2401	warn "cancelling all extension coros";	4235	trace "perl_reload: cancelling all extension coros";
2402	$_->cancel for values %EXT_CORO;	4236	$_->cancel for values %EXT_CORO;
2403	%EXT_CORO = ();	4237	%EXT_CORO = ();
2404		4238
2405	warn "removing commands";	4239	trace "perl_reload: removing commands";
2406	%COMMAND = ();	4240	%COMMAND = ();
2407		4241
2408	warn "removing ext commands";	4242	trace "perl_reload: removing ext/exti commands";
2409	%EXTCMD = ();	4243	%EXTCMD = ();
		4244	%EXTICMD = ();
2410		4245
2411	warn "unloading/nuking all extensions";	4246	trace "perl_reload: unloading/nuking all extensions";
2412	for my $pkg (@EXTS) {	4247	for my $pkg (@EXTS) {
2413	warn "... unloading $pkg";	4248	trace "... unloading $pkg";
2414		4249
2415	if (my $cb = $pkg->can ("unload")) {	4250	if (my $cb = $pkg->can ("unload")) {
2416	eval {	4251	eval {
2417	$cb->($pkg);	4252	$cb->($pkg);
2418	1	4253	1
2419	} 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;
2420	}	4259	}
2421		4260
2422	warn "... nuking $pkg";
2423	Symbol::delete_package $pkg;
2424	}
2425
2426	warn "unloading all perl modules loaded from $LIBDIR";	4261	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2427	while (my ($k, $v) = each %INC) {	4262	while (my ($k, $v) = each %INC) {
2428	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2429		4264
2430	warn "... unloading $k";	4265	trace "... unloading $k";
2431	delete $INC{$k};	4266	delete $INC{$k};
2432		4267
2433	$k =~ s/\.pm$//;	4268	$k =~ s/\.pm$//;
2434	$k =~ s/\//::/g;	4269	$k =~ s/\//::/g;
2435		4270
2436	if (my $cb = $k->can ("unload_module")) {	4271	if (my $cb = $k->can ("unload_module")) {
2437	$cb->();	4272	$cb->();
		4273	}
		4274
		4275	clear_package $k;
2438	}	4276	}
2439		4277
2440	Symbol::delete_package $k;
2441	}
2442
2443	warn "getting rid of safe::, as good as possible";	4278	trace "perl_reload: getting rid of safe::, as good as possible";
2444	Symbol::delete_package "safe::$_"	4279	clear_package "safe::$_"
2445	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);
2446		4281
2447	warn "unloading cf.pm \"a bit\"";	4282	trace "perl_reload: unloading cf.pm \"a bit\"";
2448	delete $INC{"cf.pm"};	4283	delete $INC{"cf.pm"};
		4284	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2449		4285
2450	# don't, removes xs symbols, too,	4286	# don't, removes xs symbols, too,
2451	# and global variables created in xs	4287	# and global variables created in xs
2452	#Symbol::delete_package __PACKAGE__;	4288	#clear_package __PACKAGE__;
2453		4289
2454	warn "unload completed, starting to reload now";	4290	info "perl_reload: unload completed, starting to reload now";
2455		4291
2456	warn "reloading cf.pm";	4292	trace "perl_reload: reloading cf.pm";
2457	require cf;	4293	require cf;
2458	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4294	cf::_connect_to_perl_1;
2459		4295
2460	warn "loading config and database again";	4296	trace "perl_reload: loading config and database again";
2461	cf::cfg_load;	4297	cf::reload_config;
2462		4298
2463	warn "loading extensions";	4299	trace "perl_reload: loading extensions";
2464	cf::load_extensions;	4300	cf::load_extensions;
2465		4301
		4302	if ($REATTACH_ON_RELOAD) {
2466	warn "reattaching attachments to objects/players";	4303	trace "perl_reload: reattaching attachments to objects/players";
2467	_global_reattach;	4304	_global_reattach; # objects, sockets
2468	warn "reattaching attachments to maps";	4305	trace "perl_reload: reattaching attachments to maps";
2469	reattach $_ for values %MAP;	4306	reattach $_ for values %MAP;
		4307	trace "perl_reload: reattaching attachments to players";
		4308	reattach $_ for values %PLAYER;
		4309	}
2470		4310
2471	warn "loading reloadable resources";	4311	cf::_post_init 1;
2472	load_resources;
2473		4312
2474	warn "leaving sync_job";	4313	trace "perl_reload: leaving sync_job";
2475		4314
2476	1	4315	1
2477	} or do {	4316	} or do {
2478	warn $@;	4317	error $@;
2479	warn "error while reloading, exiting.";	4318	cf::cleanup "perl_reload: error, exiting.";
2480	exit 1;	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	};
2481	};	4341	};
2482		4342	}
2483	warn "reloaded";
2484	};
2485
2486	our $RELOAD_WATCHER; # used only during reload
2487		4343
2488	register_command "reload" => sub {	4344	register_command "reload" => sub {
2489	my ($who, $arg) = @_;	4345	my ($who, $arg) = @_;
2490		4346
2491	if ($who->flag (FLAG_WIZ)) {	4347	if ($who->flag (FLAG_WIZ)) {
2492	$who->message ("reloading server.");	4348	$who->message ("reloading server.");
2493		4349	async {
2494	# doing reload synchronously and two reloads happen back-to-back,	4350	$Coro::current->{desc} = "perl_reload";
2495	# coro crashes during coro_state_free->destroy here.
2496
2497	$RELOAD_WATCHER ||= Event->timer (
2498	reentrant => 0,
2499	after => 0,
2500	data => WF_AUTOCANCEL,
2501	cb => sub {
2502	reload;	4351	reload_perl;
2503	undef $RELOAD_WATCHER;
2504	},
2505	);	4352	};
2506	}	4353	}
2507	};	4354	};
2508		4355
2509	unshift @INC, $LIBDIR;	4356	#############################################################################
2510		4357
2511	my $bug_warning = 0;	4358	my $bug_warning = 0;
2512		4359
2513	$TICK_WATCHER = Event->timer (	4360	sub wait_for_tick() {
2514	reentrant => 0,	4361	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2515	parked => 1,	4362
2516	prio => 0,	4363	$WAIT_FOR_TICK->wait;
2517	at => $NEXT_TICK || $TICK,	4364	}
2518	data => WF_AUTOCANCEL,	4365
2519	cb => sub {	4366	sub wait_for_tick_begin() {
		4367	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4368
		4369	my $signal = new Coro::Signal;
		4370	push @WAIT_FOR_TICK_BEGIN, $signal;
		4371	$signal->wait;
		4372	}
		4373
		4374	sub tick {
2520	if ($Coro::current != $Coro::main) {	4375	if ($Coro::current != $Coro::main) {
2521	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4376	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2522	unless ++$bug_warning > 10;	4377	unless ++$bug_warning > 10;
2523	return;	4378	return;
2524	}	4379	}
2525		4380
2526	$NOW = Event::time;	4381	cf::one_tick; # one server iteration
2527		4382
2528	cf::server_tick; # one server iteration	4383	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2529	$RUNTIME += $TICK;
2530	$NEXT_TICK += $TICK;
2531		4384
2532	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4385	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2533	$NEXT_RUNTIME_WRITE = $NOW + 10;	4386	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2534	Coro::async_pool {	4387	Coro::async_pool {
		4388	$Coro::current->{desc} = "runtime saver";
2535	write_runtime	4389	write_runtime_sync
2536	or warn "ERROR: unable to write runtime file: $!";	4390	or error "ERROR: unable to write runtime file: $!";
2537	};
2538	}	4391	};
		4392	}
2539		4393
2540		4394	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4395	$sig->send;
		4396	}
2541	$WAIT_FOR_TICK->broadcast;	4397	$WAIT_FOR_TICK->broadcast;
2542	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2543		4398
2544	# my $AFTER = Event::time;	4399	$LOAD = ($NOW - $TICK_START) / $TICK;
2545	# warn $AFTER - $NOW;#d#	4400	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2546		4401
2547	# if we are delayed by four ticks or more, skip them all	4402	if (0) {
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4403	if ($NEXT_TICK) {
2549		4404	my $jitter = $TICK_START - $NEXT_TICK;
2550	$TICK_WATCHER->at ($NEXT_TICK);	4405	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2551	$TICK_WATCHER->start;	4406	debug "jitter $JITTER\n";#d#
		4407	}
2552	},	4408	}
2553	);	4409	}
2554		4410
2555	{	4411	{
2556	BDB::max_poll_time $TICK * 0.1;	4412	# configure BDB
2557	$BDB_POLL_WATCHER = Event->io (	4413	info "initialising database";
2558	reentrant => 0,	4414
2559	fd => BDB::poll_fileno,
2560	poll => 'r',
2561	prio => 0,
2562	data => WF_AUTOCANCEL,
2563	cb => \&BDB::poll_cb,
2564	);
2565	BDB::min_parallel 8;	4415	BDB::min_parallel 16;
2566		4416	BDB::max_poll_reqs $TICK * 0.1;
2567	BDB::set_sync_prepare {	4417	#$AnyEvent::BDB::WATCHER->priority (1);
2568	my $status;
2569	my $current = $Coro::current;
2570	(
2571	sub {
2572	$status = $!;
2573	$current->ready; undef $current;
2574	},
2575	sub {
2576	Coro::schedule while defined $current;
2577	$! = $status;
2578	},
2579	)
2580	};
2581		4418
2582	unless ($DB_ENV) {	4419	unless ($DB_ENV) {
2583	$DB_ENV = BDB::db_env_create;	4420	$DB_ENV = BDB::db_env_create;
		4421	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4422	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4423	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4424	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4425	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2584		4426
2585	cf::sync_job {	4427	cf::sync_job {
2586	eval {	4428	eval {
2587	BDB::db_env_open	4429	BDB::db_env_open
2588	$DB_ENV,	4430	$DB_ENV,
2589	$BDB_ENV_DIR,	4431	$BDBDIR,
2590	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2591	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2592	0666;	4434	0666;
2593		4435
2594	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2595
2596	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2597	$DB_ENV->set_lk_detect;
2598	};	4437	};
2599		4438
2600	cf::cleanup "db_env_open(db): $@" if $@;	4439	cf::cleanup "db_env_open(db): $@" if $@;
2601	};	4440	};
2602	}	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";
2603	}	4454	}
2604		4455
2605	{	4456	{
		4457	# configure IO::AIO
		4458
		4459	info "initialising aio";
2606	IO::AIO::min_parallel 8;	4460	IO::AIO::min_parallel 8;
2607
2608	undef $Coro::AIO::WATCHER;
2609	IO::AIO::max_poll_time $TICK * 0.1;	4461	IO::AIO::max_poll_time $TICK * 0.1;
2610	$AIO_POLL_WATCHER = Event->io (	4462	undef $AnyEvent::AIO::WATCHER;
2611	reentrant => 0,	4463	info "aio initialised";
2612	data => WF_AUTOCANCEL,
2613	fd => IO::AIO::poll_fileno,
2614	poll => 'r',
2615	prio => 6,
2616	cb => \&IO::AIO::poll_cb,
2617	);
2618	}	4464	}
		4465
		4466	our $_log_backtrace;
		4467	our $_log_backtrace_last;
		4468
		4469	sub _log_backtrace {
		4470	my ($msg, @addr) = @_;
		4471
		4472	$msg =~ s/\n$//;
		4473
		4474	if ($_log_backtrace_last eq $msg) {
		4475	LOG llevInfo, "[ABT] $msg\n";
		4476	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4477	# limit the # of concurrent backtraces
		4478	} elsif ($_log_backtrace < 2) {
		4479	$_log_backtrace_last = $msg;
		4480	++$_log_backtrace;
		4481	my $perl_bt = Carp::longmess $msg;
		4482	async {
		4483	$Coro::current->{desc} = "abt $msg";
		4484
		4485	my @bt = fork_call {
		4486	@addr = map { sprintf "%x", $_ } @addr;
		4487	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4488	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4489	or die "addr2line: $!";
		4490
		4491	my @funcs;
		4492	my @res = <$fh>;
		4493	chomp for @res;
		4494	while (@res) {
		4495	my ($func, $line) = splice @res, 0, 2, ();
		4496	push @funcs, "[$func] $line";
		4497	}
		4498
		4499	@funcs
		4500	};
		4501
		4502	LOG llevInfo, "[ABT] $perl_bt\n";
		4503	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4504	LOG llevInfo, "[ABT] $_\n" for @bt;
		4505	--$_log_backtrace;
		4506	};
		4507	} else {
		4508	LOG llevInfo, "[ABT] $msg\n";
		4509	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4510	}
		4511	}
		4512
		4513	# load additional modules
		4514	require "cf/$_.pm" for @EXTRA_MODULES;
		4515	cf::_connect_to_perl_2;
2619		4516
2620	END { cf::emergency_save }	4517	END { cf::emergency_save }
2621		4518
2622	1	4519	1
2623		4520

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