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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.160 by root, Wed Jan 10 22:54:06 2007 UTC vs.
Revision 1.600 by root, Sun Nov 11 04:31:57 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
25	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		83
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		85
36	our %COMMAND = ();	86	our %COMMAND = ();
37	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
38		88
39	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
42		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
43	our @EVENT;	98	our @EVENT;
44	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
45		101
46	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
47	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
49	our $NOW;	144	our $NOW;
50		145
51	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
52		149
53	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
54	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
55		152
56	our %PLAYER; # all users	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
57	our %MAP; # all maps	154	our $LOADAVG; # same thing, but with alpha-smoothing
58	our $LINK_MAP; # the special {link} map	155	our $JITTER; # average jitter
59	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
60		157
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	158	our @POST_INIT;
62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
63		165
64	binmode STDOUT;	166	binmode STDOUT;
65	binmode STDERR;	167	binmode STDERR;
66		168
67	# read virtual server time, if available	169	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
69	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
70	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
71	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
72	}	174	}
73		175
74	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
75	mkdir cf::localdir . "/" . cf::playerdir;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		177
80	# a special map that is always available	178	mkdir $_
81	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
82	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
83		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
84	#############################################################################	189	#############################################################################
85		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
86	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
87		203
88	=over 4	204	=over 4
89		205
90	=item $cf::UPTIME	206	=item $cf::UPTIME
91		207
92	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
93		224
94	=item $cf::RUNTIME	225	=item $cf::RUNTIME
95		226
96	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
97	every server tick.	228	every server tick.
98		229
99	=item $cf::LIBDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
100		233
101	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
102	be found. It will be added to C<@INC> automatically.	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
103		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
104	=item $cf::NOW	245	=item $cf::LOAD
105		246
106	The time of the last (current) server tick.	247	The raw value load value from the last tick.
107
108	=item $cf::TICK
109
110	The interval between server ticks, in seconds.
111		248
112	=item %cf::CFG	249	=item %cf::CFG
113		250
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
115	from wherever your confdir points to.	252	from wherever your confdir points to.
116		253
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		255
119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
121	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
122	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
123		289
124	=back	290	=back
125		291
126	=cut	292	=cut
127		293
128	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
129	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
130	my $msg = join "", @_;	301	my $msg = join "", @_;
131	utf8::encode $msg;
132		302
133	$msg .= "\n"	303	$msg .= "\n"
134	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
135		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
136	LOG llevError, $msg;	308	LOG llevWarn, $msg;
137	};	309	};
138	}	310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
139		324
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
145	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
146		332
147	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
148	# within the Safe compartment.	334	# within the Safe compartment.
149	for my $pkg (qw(	335	for my $pkg (qw(
150	cf::global cf::attachable	336	cf::global cf::attachable
151	cf::object cf::object::player	337	cf::object cf::object::player
152	cf::client cf::player	338	cf::client cf::player
153	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
154	cf::map cf::party cf::region	341	cf::party cf::region
155	)) {	342	)) {
156	no strict 'refs';
157	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
158	}	344	}
159		345
160	$Event::DIED = sub {	346	$EV::DIED = sub {
161	warn "error in event callback: @_";	347	warn "error in event callback: $@";
162	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
163		356
164	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
165		358
166	=over 4	359	=over 4
167		360
…		…
186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
187	$d	380	$d
188	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
189	}	382	}
190		383
191	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
192		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
193	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
194		437
195	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
196		439
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
205		441
206	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
207		443
208	=cut	444	=cut
209		445
210	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
212	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
213	}	511	}
214		512
215	=item cf::lock_wait $string	513	=item cf::lock_wait $string
216		514
217	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
218		516
219	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
220		518
221	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
223	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
224	returned.	522	returned.
225		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
226	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
227	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
228		529
229	=cut	530	=item $locked = cf::lock_active $string
230		531
231	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
232		537
233	sub lock_wait($) {	538	sub lock_wait($) {
234	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
235
236	# wait for lock, if any
237	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;
240	}
241	}	540	}
242		541
243	sub lock_acquire($) {	542	sub lock_acquire($) {
244	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
245		545
246	# wait, to be sure we are not locked	546	sub lock_active($) {
247	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
248
249	$LOCK{$key} = [];
250
251	Coro::guard {
252	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };
254	}
255	}	548	}
256		549
257	sub freeze_mainloop {	550	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
259		552
260	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
261	$TICK_WATCHER->stop;	554	}
262	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
263	}	639	}
264		640
265	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
266		642
267	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		648
273	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
274		650
275	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
276		652
277	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
278	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
280		657
281	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
282	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
283	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
284	fast or be very important.	661	fast or be very important.
…		…
286	=cut	663	=cut
287		664
288	sub sync_job(&) {	665	sub sync_job(&) {
289	my ($job) = @_;	666	my ($job) = @_;
290		667
291	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
292	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
294		673
295	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
296	# (but this is cancel-safe)	675
297	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
298		677
299	my $busy = 1;	678	my $busy = 1;
300	my @res;	679	my @res;
301		680
302	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
303	@res = eval { $job->() };	683	@res = eval { $job->() };
304	warn $@ if $@;	684	error $@ if $@;
305	undef $busy;	685	undef $busy;
306	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
307		687
308	while ($busy) {	688	while ($busy) {
309	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
310	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
311		699
312	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
313	} else {	701	} else {
314	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
315		703
…		…
335	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
336		724
337	$coro	725	$coro
338	}	726	}
339		727
340	sub write_runtime {	728	=item fork_call { }, @args
341	my $runtime = cf::localdir . "/runtime";
342		729
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
344	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
345		734
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		736
350	aio_fsync $fh	737	sub post_fork {
351	and return;	738	reset_signals;
		739	}
352		740
353	close $fh	741	sub fork_call(&@) {
354	or return;	742	my ($cb, @args) = @_;
355		743
356	aio_rename "$runtime~", $runtime	744	# we seemingly have to make a local copy of the whole thing,
357	and return;	745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
358		747
		748	my @res = Coro::Util::fork_eval {
		749	cf::post_fork;
		750	&$cb
		751	} @args;
		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
359	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = EV::time;
		907	my $data = $process->(\@data);
		908	my $t2 = EV::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
		920	}
		921
		922	=item cf::datalog type => key => value, ...
		923
		924	Log a datalog packet of the given type with the given key-value pairs.
		925
		926	=cut
		927
		928	sub datalog($@) {
		929	my ($type, %kv) = @_;
		930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
360	}	931	}
361		932
362	=back	933	=back
363		934
364	=cut	935	=cut
365		936
366	#############################################################################	937	#############################################################################
367		938
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492
493	#############################################################################
494
495	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
496		940
497	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
498	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
499	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
500		944
501	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
502	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
503	crossfire+).	947	Deliantra).
504		948
505	=over 4	949	=over 4
506		950
507	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
508		952
…		…
552	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
553		997
554	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
555	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
556		1000
557	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
558	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
559		1003
560	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
561		1005
562	=over 4	1006	=over 4
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	1066	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	1067	our @CB_MAP = ();
624		1068
625	my %attachment;	1069	my %attachment;
626		1070
		1071	sub cf::attachable::thawer_merge {
		1072	# simply override everything except _meta
		1073	local $_[0]{_meta};
		1074	%{$_[0]} = %{$_[1]};
		1075	}
		1076
627	sub _attach_cb($$$$) {	1077	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	1078	my ($registry, $event, $prio, $cb) = @_;
629		1079
630	use sort 'stable';	1080	use sort 'stable';
631		1081
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
666		1116
667	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		1121
672	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
674		1124
675	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
680		1130
681	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
682	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
683		1133
684	} elsif (ref $type) {	1134	} elsif (ref $type) {
685	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
686		1136
687	} else {	1137	} else {
688	shift @arg;	1138	shift @arg;
689	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
690	}	1140	}
691	}	1141	}
692	}	1142	}
693		1143
694	sub _object_attach {	1144	sub _object_attach {
…		…
704	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
705	}	1155	}
706		1156
707	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
708	} else {	1158	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
710	}	1160	}
711		1161
712	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
713	}	1163	}
714		1164
…		…
716	if (ref $_[0]) {	1166	if (ref $_[0]) {
717	_object_attach @_;	1167	_object_attach @_;
718	} else {	1168	} else {
719	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
720	}	1170	}
		1171	_recalc_want;
721	};	1172	};
722		1173
723	# all those should be optimised	1174	# all those should be optimised
724	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
729	reattach ($obj);	1180	reattach ($obj);
730	} else {	1181	} else {
731	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
732	}	1183	}
		1184	_recalc_want;
733	};	1185	};
734		1186
735	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
737		1189
…		…
752	";	1204	";
753	die if $@;	1205	die if $@;
754	}	1206	}
755		1207
756	our $override;	1208	our $override;
757	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
758		1210
759	sub override {	1211	sub override {
760	$override = 1;	1212	$override = 1;
761	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
762	}	1214	}
763		1215
764	sub do_invoke {	1216	sub do_invoke {
765	my $event = shift;	1217	my $event = shift;
766	my $callbacks = shift;	1218	my $callbacks = shift;
767		1219
768	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
769		1221
770	local $override;	1222	local $override;
771		1223
772	for (@$callbacks) {	1224	for (@$callbacks) {
773	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
774		1226
775	if ($@) {	1227	if ($@) {
776	warn "$@";
777	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
778	override;	1229	override;
779	}	1230	}
780		1231
781	return 1 if $override;	1232	return 1 if $override;
782	}	1233	}
783		1234
784	0	1235	0
785	}	1236	}
786		1237
787	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
788		1239
789	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
790		1241
791	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
792		1243
793	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
794	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
795	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		1247
797	=back	1248	=back
798		1249
799	=cut	1250	=cut
800		1251
801	#############################################################################	1252	#############################################################################
802	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
803		1296
804	sub reattach {	1297	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	1299	my ($obj) = @_;
		1300
		1301	# no longer needed after getting rid of delete_package?
		1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		1303
808	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
809		1305
810	@$registry = ();	1306	@$registry = ();
811		1307
…		…
816	for (@$attach) {	1312	for (@$attach) {
817	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
818	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
819	}	1315	}
820	} else {	1316	} else {
821	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
822	}	1318	}
823	}	1319	}
824	}	1320	}
825		1321
826	cf::attachable->attach (	1322	cf::attachable->attach (
827	prio => -1000000,	1323	prio => -1000000,
828	on_instantiate => sub {	1324	on_instantiate => sub {
829	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
830		1326
831	$data = from_json $data;	1327	$data = decode_json $data;
832		1328
833	for (@$data) {	1329	for (@$data) {
834	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
835		1331
836	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
852	sub object_freezer_save {	1348	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
854		1350
855	sync_job {	1351	sync_job {
856	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
859		1357
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1361	if ($cf::USE_FSYNC) {
		1362	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;
863	aio_fsync $fh;	1363	aio_fsync $fh;
		1364	}
864	close $fh;	1365	aio_close $fh;
865		1366
866	if (@$objs) {	1367	if (@$objs) {
867	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
868	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
		1372	if ($cf::USE_FSYNC) {
		1373	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;
871	aio_fsync $fh;	1374	aio_fsync $fh;
		1375	}
872	close $fh;	1376	aio_close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
874	}	1378	}
875	} else {	1379	} else {
876	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
877	}	1381	}
878		1382
879	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
880	} else {	1387	} else {
881	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
882	}	1389	}
883	} else {	1390	} else {
884	aio_unlink $filename;	1391	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
886	}	1393	}
887	}	1394	};
888	}	1395	}
889		1396
890	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
892		1399
…		…
904	or return;	1411	or return;
905		1412
906	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
908	or return;	1415	or return;
		1416
909	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
910	}	1419	}
911		1420
		1421	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
914	return ($data, $av);	1426	($data, $av)
915	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
916		1434
917	#############################################################################	1435	#############################################################################
918	# command handling &c	1436	# command handling &c
919		1437
920	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
921		1439
922	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
923	$name.	1441	$name.
924		1442
925	=cut	1443	=cut
…		…
931	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
932		1450
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1452	}
935		1453
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
937		1455
938	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
939		1461
940	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
941	called.
942		1463
943	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
944		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
945	sub register_extcmd {	1486	sub register_extcmd($$) {
946	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
947		1488
948	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
949	}	1490	}
950		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
951	cf::player->attach (	1512	cf::player->attach (
952	on_command => sub {	1513	on_unknown_command => sub {
953	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
954		1515
955	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
956	or return;	1517	or return;
957		1518
…		…
962	cf::override;	1523	cf::override;
963	},	1524	},
964	on_extcmd => sub {	1525	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
966		1527
967	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1529
969	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
972	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
973	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
974	}	1551	}
		1552
975	} else {	1553	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1555	}
978		1556
979	cf::override;	1557	cf::override;
980	},	1558	},
981	);	1559	);
982		1560
		1561	# "readahead" all extensions
983	sub load_extension {	1562	sub cache_extensions {
984	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
985		1564
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;	1568	}
990	$pkg = "ext::$pkg";	1569	};
991		1570
992	warn "... loading '$path' into '$pkg'\n";	1571	$grp
		1572	}
993		1573
994	open my $fh, "<:utf8", $path	1574	sub _ext_cfg_reg($$$$) {
995	or die "$path: $!";	1575	my ($rvar, $varname, $cfgname, $default) = @_;
996		1576
997	my $source =	1577	$cfgname = lc $varname
998	"package $pkg; use strict; use utf8;\n"	1578	unless length $cfgname;
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002		1579
1003	eval $source	1580	$EXT_CFG{$cfgname} = [$rvar, $default];
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006		1581
1007	push @EXTS, $pkg;	1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1008	}	1583	}
1009		1584
1010	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
1011	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1594	next unless -r $path;
1013	eval {	1595
1014	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
1015	1	1668	}
1016	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
1017	}	1681	};
1018	}	1682	}
1019		1683
1020	#############################################################################	1684	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1685
1023	*cf::mapsupport::on_clean = sub {	1686	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1687
1036	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
1037		1689
1038	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
1039		1691
1040	=cut	1692	=cut
1041		1693
1042	package cf::player;	1694	package cf::player;
1043		1695
…		…
1045		1697
1046	=head3 cf::player	1698	=head3 cf::player
1047		1699
1048	=over 4	1700	=over 4
1049		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
1050	=item cf::player::find $login	1716	=item cf::player::find $login
1051		1717
1052	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
1053		1719
1054	=cut	1720	=cut
1055		1721
1056	sub playerdir($) {	1722	sub playerdir($) {
1057	cf::localdir	1723	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1725	}
1063		1726
1064	sub path($) {	1727	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1729
1067	(playerdir $login) . "/$login.pl"	1730	(playerdir $login) . "/playerdata"
1068	}	1731	}
1069		1732
1070	sub find_active($) {	1733	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1734	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1735	and $cf::PLAYER{$_[0]}->active
…		…
1075		1738
1076	sub exists($) {	1739	sub exists($) {
1077	my ($login) = @_;	1740	my ($login) = @_;
1078		1741
1079	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1743	or !aio_stat path $login
1081	}	1744	}
1082		1745
1083	sub find($) {	1746	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1748	my $login = $_[0];
1086		1749
1087	my $guard = cf::lock_acquire "user_find:$login";	1750	my $guard = cf::lock_acquire "user_find:$login";
1088		1751
1089	$cf::PLAYER{$_[0]} || do {	1752	$cf::PLAYER{$_[0]} || do {
1090	my $pl = load_pl path $login	1753	# rename old playerfiles to new ones
		1754	#TODO: remove when no longer required
		1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1758	aio_unlink +(playerdir $login) . "/$login.pl";
		1759
		1760	my $f = new_from_file cf::object::thawer path $login
1091	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1092	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1093	}	1769	}
1094	}	1770	}
1095	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1096		1785
1097	sub save($) {	1786	sub save($) {
1098	my ($pl) = @_;	1787	my ($pl) = @_;
1099		1788
1100	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1105	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1106		1795
1107	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1109		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1110	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1111	Coro::cede;	1805	cf::cede_to_tick;
1112	}	1806	}
1113		1807
1114	sub new($) {	1808	sub new($) {
1115	my ($login) = @_;	1809	my ($login) = @_;
1116		1810
…		…
1122	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1123		1817
1124	$self	1818	$self
1125	}	1819	}
1126		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1127	=item $pl->quit_character	1831	=item $pl->quit_character
1128		1832
1129	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1130	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1131		1835
1132	=cut	1836	=cut
1133		1837
1134	sub quit_character {	1838	sub quit_character {
1135	my ($pl) = @_;	1839	my ($pl) = @_;
1136		1840
		1841	my $name = $pl->ob->name;
		1842
1137	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1138	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1139		1845
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1141	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1142	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1143	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1144		1854
1145	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1858	delete $cf::PLAYER{$pl->ob->name};
1149	$pl->destroy;	1859	$pl->destroy;
		1860
		1861	my $prefix = qr<^~\Q$name\E/>;
		1862
		1863	# nuke player maps
		1864	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1865
1150	IO::AIO::aio_rmtree $temp;	1866	IO::AIO::aio_rmtree $temp;
		1867	}
		1868
		1869	=item $pl->kick
		1870
		1871	Kicks a player out of the game. This destroys the connection.
		1872
		1873	=cut
		1874
		1875	sub kick {
		1876	my ($pl, $kicker) = @_;
		1877
		1878	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1879	$pl->killer ("kicked");
		1880	$pl->ns->destroy;
1151	}	1881	}
1152		1882
1153	=item cf::player::list_logins	1883	=item cf::player::list_logins
1154		1884
1155	Returns am arrayref of all valid playernames in the system, can take a	1885	Returns am arrayref of all valid playernames in the system, can take a
1156	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1157		1887
1158	=cut	1888	=cut
1159		1889
1160	sub list_logins {	1890	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1892	or return [];
1163		1893
1164	my @logins;	1894	my @logins;
1165		1895
1166	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1170		1906
1171	utf8::decode $login;	1907	utf8::decode $login;
1172	push @logins, $login;	1908	push @logins, $login;
1173	}	1909	}
1174		1910
1175	\@logins	1911	\@logins
1176	}	1912	}
1177		1913
1178	=item $player->maps	1914	=item $player->maps
1179		1915
		1916	=item cf::player::maps $login
		1917
1180	Returns an arrayref of cf::path's of all maps that are private for this	1918	Returns an arrayref of map paths that are private for this
1181	player. May block.	1919	player. May block.
1182		1920
1183	=cut	1921	=cut
1184		1922
1185	sub maps($) {	1923	sub maps($) {
1186	my ($pl) = @_;	1924	my ($pl) = @_;
		1925
		1926	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1927
1188	my $files = aio_readdir playerdir $pl	1928	my $files = aio_readdir playerdir $pl
1189	or return;	1929	or return;
1190		1930
1191	my @paths;	1931	my @paths;
…		…
1193	for (@$files) {	1933	for (@$files) {
1194	utf8::decode $_;	1934	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1935	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1936	next unless /^$PATH_SEP/o;
1197		1937
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1938	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1939	}
1200		1940
1201	\@paths	1941	\@paths
1202	}	1942	}
1203		1943
		1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1945
		1946	Expand deliantra pod fragments into protocol xml.
		1947
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1948	=item $player->ext_msg ($type, @msg)
1205		1949
1206	Sends an ext reply to the player.	1950	Sends an ext event to the client.
1207		1951
1208	=cut	1952	=cut
1209		1953
1210	sub ext_reply($$$%) {	1954	sub ext_msg($$@) {
1211	my ($self, $id, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1212		1956
1213	$msg{msgid} = $id;	1957	$self->ns->ext_msg ($type, @msg);
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1958	}
1217		1959
1218	package cf;	1960	=head3 cf::region
		1961
		1962	=over 4
		1963
		1964	=cut
		1965
		1966	package cf::region;
		1967
		1968	=item cf::region::find_by_path $path
		1969
		1970	Tries to decuce the likely region for a map knowing only its path.
		1971
		1972	=cut
		1973
		1974	sub find_by_path($) {
		1975	my ($path) = @_;
		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
		1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
		1989	}
1219		1990
1220	=back	1991	=back
1221
1222		1992
1223	=head3 cf::map	1993	=head3 cf::map
1224		1994
1225	=over 4	1995	=over 4
1226		1996
…		…
1229	package cf::map;	1999	package cf::map;
1230		2000
1231	use Fcntl;	2001	use Fcntl;
1232	use Coro::AIO;	2002	use Coro::AIO;
1233		2003
		2004	use overload
		2005	'""' => \&as_string,
		2006	fallback => 1;
		2007
1234	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1236		2010
1237	sub generate_random_map {	2011	sub generate_random_map {
		2012	my ($self, $rmp) = @_;
		2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
		2016	$self->_create_random_map ($rmp);
		2017	}
		2018
		2019	=item cf::map->register ($regex, $prio)
		2020
		2021	Register a handler for the map path matching the given regex at the
		2022	givne priority (higher is better, built-in handlers have priority 0, the
		2023	default).
		2024
		2025	=cut
		2026
		2027	sub register {
		2028	my (undef, $regex, $prio) = @_;
		2029	my $pkg = caller;
		2030
		2031	push @{"$pkg\::ISA"}, __PACKAGE__;
		2032
		2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2034	}
		2035
		2036	# also paths starting with '/'
		2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2038
		2039	sub thawer_merge {
		2040	my ($self, $merge) = @_;
		2041
		2042	# we have to keep some variables in memory intact
		2043	local $self->{path};
		2044	local $self->{load_path};
		2045
		2046	$self->SUPER::thawer_merge ($merge);
		2047	}
		2048
		2049	sub normalise {
1238	my ($path, $rmp) = @_;	2050	my ($path, $base) = @_;
1239		2051
1240	# mit "rum" bekleckern, nicht	2052	$path = "$path"; # make sure it's a string
1241	cf::map::_create_random_map	2053
		2054	$path =~ s/\.map$//;
		2055
		2056	# map plan:
		2057	#
		2058	# /! non-realised random map exit (special hack!)
		2059	# {... are special paths that are not being touched
		2060	# ?xxx/... are special absolute paths
		2061	# ?random/... random maps
		2062	# /... normal maps
		2063	# ~user/... per-player map of a specific user
		2064
		2065	$path =~ s/$PATH_SEP/\//go;
		2066
		2067	# treat it as relative path if it starts with
		2068	# something that looks reasonable
		2069	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2070	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2071
		2072	$base =~ s{[^/]+/?$}{};
		2073	$path = "$base/$path";
		2074	}
		2075
		2076	for ($path) {
		2077	redo if s{/\.?/}{/};
		2078	redo if s{/[^/]+/\.\./}{/};
		2079	}
		2080
1242	$path,	2081	$path
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})
1254	}	2082	}
1255		2083
1256	# and all this just because we cannot iterate over	2084	sub new_from_path {
1257	# all maps in C++...	2085	my (undef, $path, $base) = @_;
1258	sub change_all_map_light {	2086
		2087	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2088
		2089	$path = normalise $path, $base;
		2090
		2091	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2092	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2093	my $self = bless cf::map::new, $pkg;
		2094	$self->{path} = $path; $self->path ($path);
		2095	$self->init; # pass $1 etc.
		2096	return $self;
		2097	}
		2098	}
		2099
		2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2101	()
		2102	}
		2103
		2104	# may re-bless or do other evil things
		2105	sub init {
1259	my ($change) = @_;	2106	my ($self) = @_;
1260		2107
1261	$_->change_map_light ($change)	2108	$self
1262	for grep $_->outdoor, values %cf::MAP;
1263	}	2109	}
1264		2110
		2111	sub as_string {
		2112	my ($self) = @_;
		2113
		2114	"$self->{path}"
		2115	}
		2116
		2117	# the displayed name, this is a one way mapping
		2118	sub visible_name {
		2119	&as_string
		2120	}
		2121
		2122	# the original (read-only) location
		2123	sub load_path {
		2124	my ($self) = @_;
		2125
		2126	"$MAPDIR/$self->{path}.map"
		2127	}
		2128
		2129	# the temporary/swap location
		2130	sub save_path {
		2131	my ($self) = @_;
		2132
		2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2134	"$TMPDIR/$path.map"
		2135	}
		2136
		2137	# the unique path, undef == no special unique path
		2138	sub uniq_path {
		2139	my ($self) = @_;
		2140
		2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2142	"$UNIQUEDIR/$path"
		2143	}
		2144
		2145	sub decay_objects {
		2146	my ($self) = @_;
		2147
		2148	return if $self->{deny_reset};
		2149
		2150	$self->do_decay_objects;
		2151	}
		2152
		2153	sub unlink_save {
		2154	my ($self) = @_;
		2155
		2156	utf8::encode (my $save = $self->save_path);
		2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2158	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2159	}
		2160
1265	sub try_load_header($) {	2161	sub load_header_from($) {
1266	my ($path) = @_;	2162	my ($self, $path) = @_;
1267		2163
1268	utf8::encode $path;	2164	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1270	or return;	2166	or return;
1271		2167
1272	my $map = cf::map::new	2168	$self->_load_header ($f)
1273	or return;	2169	or return;
1274		2170
1275	# for better error messages only, will be overwritten	2171	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	2172	$f->resolve_delayed_derefs;
1277		2173
1278	$map->load_header ($path)	2174	$self->{load_path} = $path;
		2175
		2176	1
		2177	}
		2178
		2179	# used to laod the header of an original map
		2180	sub load_header_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->load_header_from ($self->load_path)
		2184	}
		2185
		2186	# used to laod the header of an instantiated map
		2187	sub load_header_temp {
		2188	my ($self) = @_;
		2189
		2190	$self->load_header_from ($self->save_path)
		2191	}
		2192
		2193	# called after loading the header from an instantiated map
		2194	sub prepare_temp {
		2195	my ($self) = @_;
		2196
		2197	$self->last_access ((delete $self->{last_access})
		2198	|| $cf::RUNTIME); #d#
		2199	# safety
		2200	$self->{instantiate_time} = $cf::RUNTIME
		2201	if $self->{instantiate_time} > $cf::RUNTIME;
		2202	}
		2203
		2204	# called after loading the header from an original map
		2205	sub prepare_orig {
		2206	my ($self) = @_;
		2207
		2208	$self->{load_original} = 1;
		2209	$self->{instantiate_time} = $cf::RUNTIME;
		2210	$self->last_access ($cf::RUNTIME);
		2211	$self->instantiate;
		2212	}
		2213
		2214	sub load_header {
		2215	my ($self) = @_;
		2216
		2217	if ($self->load_header_temp) {
		2218	$self->prepare_temp;
		2219	} else {
		2220	$self->load_header_orig
1279	or return;	2221	or return;
		2222	$self->prepare_orig;
		2223	}
1280		2224
1281	$map->{load_path} = $path;	2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
1282		2227
1283	$map	2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
		2231	1
1284	}	2232	}
1285		2233
1286	sub find;	2234	sub find;
1287	sub find {	2235	sub find {
1288	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1289		2237
1290	#warn "find<$path,$origin>\n";#d#	2238	cf::cede_to_tick;
1291		2239
1292	$path = new cf::path $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1293	my $key = $path->as_string;
1294		2241
1295	cf::lock_wait "map_find:$key";	2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1296
1297	$cf::MAP{$key} || do {
1298	my $guard = cf::lock_acquire "map_find:$key";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1299		2244
1300	# do it the slow way	2245	$cf::MAP{$path} || do {
1301	my $map = try_load_header $path->save_path;	2246	my $map = new_from_path cf::map $path
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	2247	or return;
1319		2248
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1332		2250
1333	Coro::cede;	2251	$map->load_header
		2252	or return;
1334		2253
1335	if ($map->should_reset) {	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2255	# doing this can freeze the server in a sync job, obviously
		2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1336	$map->reset;	2259	$map->reset;
1337	undef $guard;
1338	$map = find $path	2260	return find $path;
1339	or return;
1340	}	2261	}
1341		2262
1342	$cf::MAP{$key} = $map	2263	$cf::MAP{$path} = $map
1343	}	2264	}
1344	}	2265	}
		2266
		2267	sub pre_load { }
		2268	#sub post_load { } # XS
1345		2269
1346	sub load {	2270	sub load {
1347	my ($self) = @_;	2271	my ($self) = @_;
1348		2272
		2273	local $self->{deny_reset} = 1; # loading can take a long time
		2274
1349	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2278	my $guard = cf::lock_acquire "map_data:$path";
1351		2279
1352	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1353		2282
1354	$self->in_memory (cf::MAP_LOADING);
1355
1356	$self->alloc;	2283	$self->alloc;
1357	$self->load_objects ($self->{load_path}, 1)	2284
		2285	$self->pre_load;
		2286	cf::cede_to_tick;
		2287
		2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1358	or return;	2292	or return;
1359		2293
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1361	if delete $self->{load_original};	2295	if delete $self->{load_original};
1362		2296
1363	if (my $uniq = $path->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	2298	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	2301	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1368	}	2306	}
1369	}
1370		2307
1371	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1372		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1373	# now do the right thing for maps	2317	# now do the right thing for maps
1374	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2320	unless $self->difficulty;
1386	$self->activate;	2321	cf::cede_to_tick;
		2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
		2333	}
		2334
		2335	$self->post_load;
		2336
1387	}	2337	1
1388
1389	Coro::cede;
1390
1391	$self->in_memory (cf::MAP_IN_MEMORY);
1392	}	2338	}
1393		2339
1394	# find and load all maps in the 3x3 area around a map	2340	# customize the map for a given player, i.e.
1395	sub load_diag {	2341	# return the _real_ map. used by e.g. per-player
1396	my ($map) = @_;	2342	# maps to change the path to ~playername/mappath
		2343	sub customise_for {
		2344	my ($self, $ob) = @_;
1397		2345
1398	my @diag; # diagonal neighbours	2346	return find "~" . $ob->name . "/" . $self->{path}
		2347	if $self->per_player;
1399		2348
1400	for (0 .. 3) {	2349	# return find "?party/" . $ob->name . "/" . $self->{path}
1401	my $neigh = $map->tile_path ($_)	2350	# if $self->per_party;
1402	or next;
1403	$neigh = find $neigh, $map
1404	or next;
1405	$neigh->load;
1406		2351
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2352	$self
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}
1410
1411	for (@diag) {
1412	my $neigh = find @$_
1413	or next;
1414	$neigh->load;
1415	}
1416	}	2353	}
1417		2354
1418	sub find_sync {	2355	sub find_sync {
1419	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1420		2357
1421	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1422	}	2363	}
1423		2364
1424	sub do_load_sync {	2365	sub do_load_sync {
1425	my ($map) = @_;	2366	my ($map) = @_;
1426		2367
1427	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1428	}	2373	}
1429		2374
1430	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
		2376	our $MAP_PREFETCHER = undef;
		2377
		2378	sub find_async {
		2379	my ($path, $origin, $load) = @_;
		2380
		2381	$path = normalise $path, $origin;
		2382
		2383	if (my $map = $cf::MAP{$path}) {
		2384	return $map if !$load || $map->linkable;
		2385	}
		2386
		2387	$MAP_PREFETCH{$path} |= $load;
		2388
1431	our $MAP_PREFETCHER = Coro::async {	2389	$MAP_PREFETCHER ||= cf::async {
1432	while () {	2390	$Coro::current->{desc} = "map prefetcher";
		2391
1433	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2394	if (my $map = find $k) {
		2395	$map->load if $v;
		2396	}
		2397
1436	my $path = delete $MAP_PREFETCH{$key};	2398	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2399	}
1442	Coro::schedule;	2400	}
		2401	undef $MAP_PREFETCHER;
1443	}	2402	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2403	$MAP_PREFETCHER->prio (6);
1458		2404
1459	()	2405	()
		2406	}
		2407
		2408	# common code, used by both ->save and ->swapout
		2409	sub _save {
		2410	my ($self) = @_;
		2411
		2412	$self->{last_save} = $cf::RUNTIME;
		2413
		2414	return unless $self->dirty;
		2415
		2416	my $save = $self->save_path; utf8::encode $save;
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->{load_path} = $save;
		2420
		2421	return if $self->{deny_save};
		2422
		2423	local $self->{last_access} = $self->last_access;#d#
		2424
		2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
		2427	$_->contr->save for $self->players;
		2428	};
		2429
		2430	cf::get_slot 0.02;
		2431
		2432	if ($uniq) {
		2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2435	} else {
		2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2437	}
1460	}	2438	}
1461		2439
1462	sub save {	2440	sub save {
1463	my ($self) = @_;	2441	my ($self) = @_;
1464		2442
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2444
1467	$self->{last_save} = $cf::RUNTIME;	2445	$self->_save;
1468
1469	return unless $self->dirty;
1470
1471	my $save = $self->{path}->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1473
1474	$self->{load_path} = $save;
1475
1476	return if $self->{deny_save};
1477
1478	local $self->{last_access} = $self->last_access;#d#
1479
1480	cf::async {
1481	$_->contr->save for $self->players;
1482	};
1483
1484	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}
1490	}	2446	}
1491		2447
1492	sub swap_out {	2448	sub swap_out {
1493	my ($self) = @_;	2449	my ($self) = @_;
1494		2450
1495	# save first because save cedes
1496	$self->save;
1497
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1500	return if $self->players;	2455	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;
1502	return if $self->{deny_save};
1503		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1504	$self->clear;	2466	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2467	}
1507		2468
1508	sub reset_at {	2469	sub reset_at {
1509	my ($self) = @_;	2470	my ($self) = @_;
1510		2471
1511	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1514		2474
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2477
…		…
1522	my ($self) = @_;	2482	my ($self) = @_;
1523		2483
1524	$self->reset_at <= $cf::RUNTIME	2484	$self->reset_at <= $cf::RUNTIME
1525	}	2485	}
1526		2486
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2487	sub reset {
1549	my ($self) = @_;	2488	my ($self) = @_;
1550		2489
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2491
1553	return if $self->players;	2492	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2493
1556	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
		2495
		2496	$self->state (cf::MAP_SWAPPED);
		2497
		2498	# need to save uniques path
		2499	unless ($self->{deny_save}) {
		2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2501
		2502	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2503	if $uniq;
		2504	}
1557		2505
1558	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1559		2507
		2508	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2509	$_->clear_links_to ($self) for values %cf::MAP;
		2510	$self->clear;
1561		2511
1562	$self->unlink_save;	2512	$self->unlink_save;
1563	$self->destroy;	2513	$self->destroy;
1564	}	2514	}
1565		2515
1566	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1567		2517
1568	sub nuke {	2518	sub nuke {
1569	my ($self) = @_;	2519	my ($self) = @_;
1570		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
		2524	delete $cf::MAP{$self->path};
		2525
		2526	$self->unlink_save;
		2527
		2528	bless $self, "cf::map::wrap";
		2529	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2533
		2534	$cf::MAP{$self->path} = $self;
		2535	}
		2536
1574	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
1575	}	2538	}
1576		2539
1577	sub customise_for {	2540	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2541
1580	if ($map->per_player) {	2542	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
1582	}	2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
1583		2557
1584	$map	2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
1585	}	2574	}
1586		2575
1587	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1588		2577
1589	Returns an arrayref of cf::path's of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1590	instantiated unique items. May block.	2579	instantiated unique items. May block.
1591		2580
1592	=cut	2581	=cut
1593		2582
1594	sub unique_maps() {	2583	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1596	or return;	2585	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2586	utf8::decode $_;
1602	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1603	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1604		2589	? ()
1605	push @paths, new cf::path $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2592	]
1607
1608	\@paths
1609	}	2593	}
1610		2594
1611	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1612		2626
1613	=back	2627	=back
1614		2628
1615	=head3 cf::object	2629	=head3 cf::object
1616		2630
…		…
1620		2634
1621	=over 4	2635	=over 4
1622		2636
1623	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1624		2638
1625	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1626		2641
1627	=cut	2642	=cut
1628		2643
1629	sub inv_recursive_;	2644	sub inv_recursive_;
1630	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1633		2648
1634	sub inv_recursive {	2649	sub inv_recursive {
1635	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1636	}	2651	}
1637		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1638	package cf;	2681	package cf;
1639		2682
1640	=back	2683	=back
1641		2684
1642	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1648	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1649	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1650	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1651		2694
1652	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1653		2710
1654	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1655	# with dialog boxes.	2712	# with dialog boxes.
1656	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1657	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1659		2716
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2718
1662	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1664	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1665	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1667	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1668	}	2744	}
1669		2745
1670	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1671		2747
1672	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1685		2761
1686	=item $player_object->enter_link	2762	=item $player_object->enter_link
1687		2763
1688	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1689		2765
1690	The player should be reaosnably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1691	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
		2770
		2771	Will never block.
1692		2772
1693	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1694		2774
1695	Moves the player out of the specila link map onto the given map. If the	2775	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2776	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2777	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2778	fails, to the emergency map position.
1699		2779
1700	Might block.	2780	Might block.
1701		2781
1702	=cut	2782	=cut
		2783
		2784	sub link_map {
		2785	unless ($LINK_MAP) {
		2786	$LINK_MAP = cf::map::find "{link}"
		2787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2788	$LINK_MAP->load;
		2789	}
		2790
		2791	$LINK_MAP
		2792	}
1703		2793
1704	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2795	my ($self) = @_;
1706		2796
1707	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1708		2798
1709	return if $self->map == $LINK_MAP;	2799	++$self->{_link_recursion};
		2800
		2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2802
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1713		2805
1714	$self->enter_map ($LINK_MAP, 20, 20);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1715	}	2807	}
1716		2808
1717	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1719		2813
1720	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1721		2815
1722	unless ($map) {	2816	unless ($map) {
1723	# restore original map position	2817	# restore original map position
…		…
1734	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1735	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1736		2830
1737	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1740		2834
1741	$map->load;	2835	$map->load;
1742	$map->load_diag;
1743		2836
1744	return unless $self->contr->active;	2837	return unless $self->contr->active;
		2838
		2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2840	if ($self->enter_map ($map, $x, $y)) {
		2841	# entering was successful
		2842	delete $self->{_link_recursion};
		2843	# only activate afterwards, to support waiting in hooks
1745	$self->activate_recursive;	2844	$self->activate_recursive;
1746	$self->enter_map ($map, $x, $y);
1747	}
1748
1749	cf::player->attach (
1750	on_logout => sub {
1751	my ($pl) = @_;
1752
1753	# abort map switching before logout
1754	if ($pl->ob->{_link_pos}) {
1755	cf::sync_job {
1756	$pl->ob->leave_link
1757	};
1758	}
1759	},	2845	}
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2846
1763	# try to abort aborted map switching on player login :)	2847	}
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780		2848
1781	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1782		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1783	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1784		2863
1785	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2866
1788	$path = new cf::path $path;	2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1789		2875
1790	$self->enter_link;	2876	$self->enter_link;
1791		2877
1792	(async {	2878	(async {
1793	my $map = cf::map::find $path->as_string;	2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
		2900	my $map = eval {
		2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
1795		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2906	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
1800		2909
		2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
		2916	}
		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1802	})->prio (1);	2924	})->prio (1);
1803	}	2925	}
1804		2926
1805	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1806		2928
…		…
1808		2930
1809	sub parse_random_map_params {	2931	sub parse_random_map_params {
1810	my ($spec) = @_;	2932	my ($spec) = @_;
1811		2933
1812	my $rmp = { # defaults	2934	my $rmp = { # defaults
1813	xsize => 10,	2935	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2936	ysize => (cf::rndm 15, 40),
		2937	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2938	#layout => string,
1815	};	2939	};
1816		2940
1817	for (split /\n/, $spec) {	2941	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2942	my ($k, $v) = split /\s+/, $_, 2;
1819		2943
…		…
1831	# that depends on the exit object	2955	# that depends on the exit object
1832		2956
1833	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
1834		2958
1835	if ($exit->map) {	2959	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2960	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1840	}	2966	}
1841		2967
1842	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1843		2969
1844	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1845	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
		2972	my $meta = "$RANDOMDIR/$md5.meta";
1846		2973
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
		2976	undef $fh;
		2977	aio_rename "$meta~", $meta;
1849		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1850	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1852	}	2985	}
1853	}	2986	}
1854		2987
1855	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
…		…
1858	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1859		2992
1860	$self->enter_link;	2993	$self->enter_link;
1861		2994
1862	(async {	2995	(async {
1863	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1864	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
1865	prepare_random_map $exit	3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
1866	if $exit->slaying eq "/!";	3015	$map = $exit->slaying;
1867		3016
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3017	} elsif ($slaying eq '!up') {
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
1870		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
		3028	$self->goto ($map, $x, $y);
		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1871	1;	3034	1
1872	}) {	3035	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1874	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1877		3040
1878	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
1879	$self->leave_link;	3042	$self->leave_link;
1880	}	3043	}
1881	})->prio (1);	3044	})->prio (1);
1882	}	3045	}
1883		3046
…		…
1894		3057
1895	sub cf::client::send_drawinfo {	3058	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	3059	my ($self, $text, $flags) = @_;
1897		3060
1898	utf8::encode $text;	3061	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	3063	}
1901		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
		3252	=item $client->ext_msg ($type, @msg)
		3253
		3254	Sends an ext event to the client.
		3255
		3256	=cut
		3257
		3258	sub cf::client::ext_msg($$@) {
		3259	my ($self, $type, @msg) = @_;
		3260
		3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3262	}
1902		3263
1903	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
1904		3265
1905	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		3269
1909	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	3271	become reliable at some point in the future.
1911		3272
1912	=cut	3273	=cut
1913		3274
1914	sub cf::client::query {	3275	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	3284	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		3286
1926	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
1928	}	3291	}
1929		3292
1930	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
1931	on_reply => sub {	3299	on_reply => sub {
1932	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
1933		3301
1934	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
1935	# get handled first	3303	# get handled first
1936	my $queue = delete $ns->{query_queue}	3304	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	3305	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		3306
1939	(shift @$queue)->[1]->($msg);	3307	(shift @$queue)->[1]->($msg);
		3308	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		3309
1941	push @{ $ns->{query_queue} }, @$queue;	3310	push @{ $ns->{query_queue} }, @$queue;
1942		3311
1943	if (@{ $ns->{query_queue} } == @$queue) {	3312	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	3313	if (@$queue) {
…		…
1946	} else {	3315	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	3317	}
1949	}	3318	}
1950	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
1951	);	3353	);
1952		3354
1953	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
1954		3356
1955	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
1971		3373
1972	$coro	3374	$coro
1973	}	3375	}
1974		3376
1975	cf::client->attach (	3377	cf::client->attach (
1976	on_destroy => sub {	3378	on_client_destroy => sub {
1977	my ($ns) = @_;	3379	my ($ns) = @_;
1978		3380
1979	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1980	},	3382	},
1981	);	3383	);
…		…
1996	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
1998		3400
1999	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2000		3402
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2002		3408
2003	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2004		3410
2005	=pod	3411	=pod
2006		3412
2007	The following fucntions and emthods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2008		3414
2009	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2010	cf::object::player player	3420	cf::object::player
2011	cf::player peaceful	3421	player
2012	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2013		3428
2014	=cut	3429	=cut
2015		3430
2016	for (	3431	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2018	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2020	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2021	) {	3438	) {
2022	no strict 'refs';
2023	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2024	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2025	for @funs;	3441	for @funs;
2026	}	3442	}
2027		3443
…		…
2042		3458
2043	my $qcode = $code;	3459	my $qcode = $code;
2044	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2045	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2046		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2047	local $_;	3466	local $_;
2048	local @safe::cf::_safe_eval_args = values %vars;
2049		3467
2050	my $eval =	3468	my $eval =
2051	"do {\n"	3469	"do {\n"
2052	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2053	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2054	. $code	3472	. $code
2055	. "\n}"	3473	. "\n}"
2056	;	3474	;
2057		3475
		3476	if ($CFG{safe_eval}) {
2058	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2059	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2060	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2061		3485
2062	if ($@) {	3486	if ($@) {
2063	warn "$@";	3487	warn "$@",
2064	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2065	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2066	}	3490	}
2067		3491
2068	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2069	}	3493	}
2070		3494
…		…
2084	=cut	3508	=cut
2085		3509
2086	sub register_script_function {	3510	sub register_script_function {
2087	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2088		3512
2089	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2090	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2091	}	3515	}
2092		3516
2093	=back	3517	=back
2094		3518
2095	=cut	3519	=cut
2096		3520
2097	#############################################################################	3521	#############################################################################
		3522	# the server's init and main functions
2098		3523
2099	=head2 EXTENSION DATABASE SUPPORT	3524	our %FACEHASH; # hash => idx, #d# HACK for http server
		3525	our @FACEDATA; # dynamically-created facedata
2100		3526
2101	Crossfire maintains a very simple database for extension use. It can	3527	# internal api, not fianlised
2102	currently store anything that can be serialised using Storable, which	3528	sub set_face {
2103	excludes objects.	3529	my ($name, $type, $data) = @_;
2104		3530
2105	The parameter C<$family> should best start with the name of the extension	3531	my $idx = cf::face::find $name;
2106	using it, it should be unique.
2107		3532
2108	=over 4	3533	if ($idx) {
2109		3534	delete $FACEHASH{cf::face::get_chksum $idx};
2110	=item $hashref = cf::db_get $family	3535	} else {
2111		3536	$idx = cf::face::alloc $name;
2112	Return a hashref for use by the extension C<$family>, which can be
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115
2116	=item $value = cf::db_get $family => $key
2117
2118	Returns a single value from the database
2119
2120	=item cf::db_put $family => $hashref
2121
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}	3537	}
2148		3538
2149	my $pid;	3539	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
2150		3540
2151	sub db_save() {	3541	cf::face::set_type $idx, $type;
2152	waitpid $pid, 0 if $pid;	3542	cf::face::set_data $idx, 0, (length $data), 0, $hash;
2153	if (0 == ($pid = fork)) {	3543	cf::face::set_meta $idx, $type & 1 ? undef : undef;
2154	$DB->{_meta}{version} = 1;	3544
2155	Storable::nstore $DB, "$path~";	3545	# we need to destroy the SV itself, not just overwrite,
2156	rename "$path~", $path;	3546	# as a running ix might hold a reference to it.
2157	cf::_exit 0 if defined $pid;	3547	# delete achieves that.
		3548	delete $FACEDATA[$idx];
		3549	$FACEDATA[$idx] = $data;
		3550	$FACEHASH{$hash} = $idx;#d#
		3551
		3552	$idx
		3553	}
		3554
		3555	our $FACEDATA; # facedata filehandle
		3556
		3557	sub _face_get_data($$$$) {
		3558	my ($idx, $size, $fofs, $cb) = @_;
		3559
		3560	if (defined $FACEDATA[$idx]) {
		3561	$cb->($FACEDATA[$idx]);
		3562	} elsif ($fofs) {
		3563	my $buf;
		3564	IO::AIO::aio_read $FACEDATA, $fofs, $size, $buf, 0, sub {
		3565	if ($_[0] == $size) {
		3566	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3567	$cb->($buf);
		3568	} else {
		3569	cf::error "INTERNAL ERROR: unable to read facedata for face $idx ($size, $fofs), ignoring request.";
		3570	}
2158	}	3571	};
		3572	} else {
		3573	cf::error "requested facedata for unknown face $idx ($size, $fofs), ignoring.";
2159	}	3574	}
		3575	}
2160		3576
2161	my $dirty;	3577	# rather ineffient
		3578	sub cf::face::get_data($;$) {
		3579	my ($idx, $faceset) = @_;
2162		3580
2163	sub db_sync() {	3581	my $size = cf::face::get_size $idx, $faceset;
2164	db_save if $dirty;	3582	my $fofs = cf::face::get_fofs $idx, $faceset;
2165	undef $dirty;
2166	}
2167		3583
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	3584	_face_get_data $idx, $size, $fofs, Coro::rouse_cb;
2169	db_sync;	3585	Coro::rouse_wait
		3586	}
		3587
		3588	sub cf::face::ix {
		3589	my ($ns, $idx, $pri, $size, $fofs) = @_;
		3590
		3591	_face_get_data $idx, $size, $fofs, sub {
		3592	$ns->ix_send ($idx, $pri, $_[0]);
2170	});	3593	};
		3594	}
2171		3595
2172	sub db_dirty() {	3596	sub load_facedata($) {
2173	$dirty = 1;	3597	my ($path) = @_;
2174	$idle->start;	3598
		3599	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3600
		3601	trace "loading facedata from $path\n";
		3602
		3603	my $facedata = decode_storable load_file "$path/faceinfo";
		3604
		3605	$facedata->{version} == 2
		3606	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3607
		3608	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3609	or cf::cleanup "$path/facedata: $!, cnanot proceed.";
		3610
		3611	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3612
		3613	# BEGIN ATOMIC
		3614	# from here on, everything must be atomic - no thread switch allowed
		3615	my $t1 = EV::time;
		3616
2175	}	3617	{
		3618	my $faces = $facedata->{faceinfo};
2176		3619
2177	sub db_get($;$) {	3620	for my $face (sort keys %$faces) {
2178	@_ >= 2	3621	my $info = $faces->{$face};
2179	? $DB->{$_[0]}{$_[1]}	3622	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2180	: ($DB->{$_[0]} ||= { })
2181	}
2182		3623
2183	sub db_put($$;$) {	3624	cf::face::set_visibility $idx, $info->{visibility};
2184	if (@_ >= 3) {	3625	cf::face::set_magicmap $idx, $info->{magicmap};
2185	$DB->{$_[0]}{$_[1]} = $_[2];	3626	cf::face::set_data $idx, 0, $info->{size32}, $info->{fofs32}, $info->{hash32};
2186	} else {	3627	cf::face::set_data $idx, 1, $info->{size64}, $info->{fofs64}, $info->{hash64};
2187	$DB->{$_[0]} = $_[1];	3628	#cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph}; # glyphs no longer downloadable via ix
2188	}	3629	$FACEHASH{$info->{hash64}} = $idx;#d#
2189	db_dirty;
2190	}
2191
2192	cf::global->attach (
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3630	}
2197	);
2198	}
2199		3631
2200	#############################################################################	3632	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3633	next unless $info->{smooth};
2202		3634
2203	sub cfg_load {	3635	my $idx = cf::face::find $face
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3636	or next;
2205	or return;
2206		3637
2207	local $/;	3638	if (my $smooth = cf::face::find $info->{smooth}) {
2208	*CFG = YAML::Syck::Load <$fh>;	3639	cf::face::set_smooth $idx, $smooth;
		3640	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3641	} else {
		3642	error "smooth face '$info->{smooth}' not found for face '$face'";
		3643	}
		3644	}
		3645	}
2209		3646
		3647	{
		3648	my $anims = $facedata->{animinfo};
		3649
		3650	while (my ($anim, $info) = each %$anims) {
		3651	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3652	}
		3653
		3654	cf::anim::invalidate_all; # d'oh
		3655	}
		3656
		3657	{
		3658	my $res = $facedata->{resource};
		3659
		3660	while (my ($name, $info) = each %$res) {
		3661	if (defined (my $type = $info->{type})) {
		3662	# TODO: different hash - must free and use new index, or cache ixface data queue
		3663	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3664
		3665	cf::face::set_type $idx, $type;
		3666	cf::face::set_data $idx, 0, $info->{size}, $info->{fofs}, $info->{hash};
		3667	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3668	$FACEHASH{$info->{hash}} = $idx;#d#
		3669	} else {
		3670	# $RESOURCE{$name} = $info; # unused
		3671	}
		3672	}
		3673	}
		3674
		3675	($fh, $FACEDATA) = ($FACEDATA, $fh);
		3676
		3677	# HACK to clear player env face cache, we need some signal framework
		3678	# for this (global event?)
		3679	%ext::player_env::MUSIC_FACE_CACHE = ();
		3680
		3681	# END ATOMIC
		3682
		3683	cf::debug "facedata atomic update time ", EV::time - $t1;
		3684
		3685	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3686
		3687	aio_close $fh if $fh; # close old facedata
		3688
		3689	1
		3690	}
		3691
		3692	register_exticmd fx_want => sub {
		3693	my ($ns, $want) = @_;
		3694
		3695	while (my ($k, $v) = each %$want) {
		3696	$ns->fx_want ($k, $v);
		3697	}
		3698	};
		3699
		3700	sub load_resource_file($) {
		3701	my $guard = lock_acquire "load_resource_file";
		3702
		3703	my $status = load_resource_file_ $_[0];
		3704	get_slot 0.1, 100;
		3705	cf::arch::commit_load;
		3706
		3707	$status
		3708	}
		3709
		3710	sub reload_exp_table {
		3711	_reload_exp_table;
		3712
		3713	set_face "res/exp_table" => FT_RSRC,
		3714	JSON::XS->new->utf8->canonical->encode (
		3715	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3716	);
		3717	}
		3718
		3719	sub reload_materials {
		3720	_reload_materials;
		3721	}
		3722
		3723	sub reload_regions {
		3724	# HACK to clear player env face cache, we need some signal framework
		3725	# for this (global event?)
		3726	%ext::player_env::MUSIC_FACE_CACHE = ();
		3727
		3728	load_resource_file "$MAPDIR/regions"
		3729	or die "unable to load regions file\n";
		3730
		3731	for (cf::region::list) {
		3732	$_->{match} = qr/$_->{match}/
		3733	if exists $_->{match};
		3734	}
		3735	}
		3736
		3737	sub reload_facedata {
		3738	load_facedata $DATADIR
		3739	or die "unable to load facedata\n";
		3740	}
		3741
		3742	sub reload_archetypes {
		3743	load_resource_file "$DATADIR/archetypes"
		3744	or die "unable to load archetypes\n";
		3745
		3746	set_face "res/skill_info" => FT_RSRC,
		3747	JSON::XS->new->utf8->canonical->encode (
		3748	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3749	);
		3750	set_face "res/spell_paths" => FT_RSRC,
		3751	JSON::XS->new->utf8->canonical->encode (
		3752	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3753	);
		3754	}
		3755
		3756	sub reload_treasures {
		3757	load_resource_file "$DATADIR/treasures"
		3758	or die "unable to load treasurelists\n";
		3759	}
		3760
		3761	sub reload_sound {
		3762	trace "loading sound config from $DATADIR/sound\n";
		3763
		3764	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3765
		3766	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3767	my $sound = $soundconf->{compat}[$_]
		3768	or next;
		3769
		3770	my $face = cf::face::find "sound/$sound->[1]";
		3771	cf::sound::set $sound->[0] => $face;
		3772	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3773	}
		3774
		3775	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3776	my $face = cf::face::find "sound/$v";
		3777	cf::sound::set $k => $face;
		3778	}
		3779	}
		3780
		3781	sub reload_resources {
		3782	trace "reloading resource files...\n";
		3783
		3784	reload_materials;
		3785	reload_facedata;
		3786	reload_exp_table;
		3787	reload_sound;
		3788	reload_archetypes;
		3789	reload_regions;
		3790	reload_treasures;
		3791
		3792	trace "finished reloading resource files\n";
		3793	}
		3794
		3795	sub reload_config {
		3796	trace "reloading config file...\n";
		3797
		3798	my $config = load_file "$CONFDIR/config";
		3799	utf8::decode $config;
		3800	*CFG = decode_yaml $config;
		3801
2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2211		3803
2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3804	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3805	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2214		3806
2215	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
…		…
2219	};	3811	};
2220	warn $@ if $@;	3812	warn $@ if $@;
2221	}	3813	}
2222	}	3814	}
2223		3815
		3816	sub pidfile() {
		3817	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3818	or die "$PIDFILE: $!";
		3819	flock $fh, &Fcntl::LOCK_EX
		3820	or die "$PIDFILE: flock: $!";
		3821	$fh
		3822	}
		3823
		3824	# make sure only one server instance is running at any one time
		3825	sub atomic {
		3826	my $fh = pidfile;
		3827
		3828	my $pid = <$fh>;
		3829	kill 9, $pid if $pid > 0;
		3830
		3831	seek $fh, 0, 0;
		3832	print $fh $$;
		3833	}
		3834
		3835	sub main_loop {
		3836	trace "EV::loop starting\n";
		3837	if (1) {
		3838	EV::loop;
		3839	}
		3840	trace "EV::loop returned\n";
		3841	goto &main_loop unless $REALLY_UNLOOP;
		3842	}
		3843
2224	sub main {	3844	sub main {
		3845	cf::init_globals; # initialise logging
		3846
		3847	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3848	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3849	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3850	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3851
		3852	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3853
2225	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3856	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2228	async { Event::one_event };	3857	(async {
		3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3859	EV::loop EV::LOOP_ONESHOT;
		3860	})->prio (Coro::PRIO_MAX);
2229	};	3861	};
2230		3862
2231	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
2232	db_load;	3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
		3868	db_init;
		3869
		3870	cf::init_anim;
		3871	cf::init_attackmess;
		3872	cf::init_dynamic;
		3873
		3874	cf::load_settings;
		3875
		3876	reload_resources;
		3877	reload_config;
		3878
		3879	cf::init_uuid;
		3880	cf::init_signals;
		3881	cf::init_skills;
		3882
		3883	cf::init_beforeplay;
		3884
		3885	atomic;
		3886
2233	load_extensions;	3887	load_extensions;
2234	Event::loop;	3888
		3889	utime time, time, $RUNTIMEFILE;
		3890
		3891	# no (long-running) fork's whatsoever before this point(!)
		3892	use POSIX ();
		3893	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3894
		3895	cf::_post_init 0;
		3896	};
		3897
		3898	cf::object::thawer::errors_are_fatal 0;
		3899	info "parse errors in files are no longer fatal from this point on.\n";
		3900
		3901	AE::postpone {
		3902	undef &main; # free gobs of memory :)
		3903	};
		3904
		3905	goto &main_loop;
2235	}	3906	}
2236		3907
2237	#############################################################################	3908	#############################################################################
2238	# initialisation and cleanup	3909	# initialisation and cleanup
2239		3910
2240	# install some emergency cleanup handlers	3911	# install some emergency cleanup handlers
2241	BEGIN {	3912	BEGIN {
		3913	our %SIGWATCHER = ();
2242	for my $signal (qw(INT HUP TERM)) {	3914	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2244	data => WF_AUTOCANCEL,
2245	signal => $signal,
2246	cb => sub {
2247	cf::cleanup "SIG$signal";	3916	cf::cleanup "SIG$signal";
2248	},
2249	);	3917	};
		3918	}
		3919	}
		3920
		3921	sub write_runtime_sync {
		3922	my $t0 = AE::time;
		3923
		3924	# first touch the runtime file to show we are still running:
		3925	# the fsync below can take a very very long time.
		3926
		3927	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3928
		3929	my $guard = cf::lock_acquire "write_runtime";
		3930
		3931	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3932	or return;
		3933
		3934	my $value = $cf::RUNTIME + 90 + 10;
		3935	# 10 is the runtime save interval, for a monotonic clock
		3936	# 60 allows for the watchdog to kill the server.
		3937
		3938	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3939	and return;
		3940
		3941	# always fsync - this file is important
		3942	aio_fsync $fh
		3943	and return;
		3944
		3945	# touch it again to show we are up-to-date
		3946	aio_utime $fh, undef, undef;
		3947
		3948	close $fh
		3949	or return;
		3950
		3951	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3952	and return;
		3953
		3954	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3955
2250	}	3956	1
		3957	}
		3958
		3959	our $uuid_lock;
		3960	our $uuid_skip;
		3961
		3962	sub write_uuid_sync($) {
		3963	$uuid_skip ||= $_[0];
		3964
		3965	return if $uuid_lock;
		3966	local $uuid_lock = 1;
		3967
		3968	my $uuid = "$LOCALDIR/uuid";
		3969
		3970	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3971	or return;
		3972
		3973	my $value = uuid_seq uuid_cur;
		3974
		3975	unless ($value) {
		3976	info "cowardly refusing to write zero uuid value!\n";
		3977	return;
		3978	}
		3979
		3980	my $value = uuid_str $value + $uuid_skip;
		3981	$uuid_skip = 0;
		3982
		3983	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3984	and return;
		3985
		3986	# always fsync - this file is important
		3987	aio_fsync $fh
		3988	and return;
		3989
		3990	close $fh
		3991	or return;
		3992
		3993	aio_rename "$uuid~", $uuid
		3994	and return;
		3995
		3996	trace "uuid file written ($value).\n";
		3997
		3998	1
		3999
		4000	}
		4001
		4002	sub write_uuid($$) {
		4003	my ($skip, $sync) = @_;
		4004
		4005	$sync ? write_uuid_sync $skip
		4006	: async { write_uuid_sync $skip };
2251	}	4007	}
2252		4008
2253	sub emergency_save() {	4009	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	4010	my $freeze_guard = cf::freeze_mainloop;
2255		4011
2256	warn "enter emergency perl save\n";	4012	info "emergency_perl_save: enter\n";
		4013
		4014	# this is a trade-off: we want to be very quick here, so
		4015	# save all maps without fsync, and later call a global sync
		4016	# (which in turn might be very very slow)
		4017	local $USE_FSYNC = 0;
2257		4018
2258	cf::sync_job {	4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
2259	# use a peculiar iteration method to avoid tripping on perl	4022	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	4023	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	4024	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	4025	info "emergency_perl_save: begin player save\n";
2263	for my $login (keys %cf::PLAYER) {	4026	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	4027	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2266	$pl->save;	4030	$pl->save;
2267	}	4031	}
2268	warn "end emergency player save\n";	4032	info "emergency_perl_save: end player save\n";
2269		4033
2270	warn "begin emergency map save\n";	4034	cf::write_runtime_sync; # external watchdog should not bark
		4035
		4036	info "emergency_perl_save: begin map save\n";
2271	for my $path (keys %cf::MAP) {	4037	for my $path (keys %cf::MAP) {
2272	my $map = $cf::MAP{$path} or next;	4038	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	4039	$map->valid or next;
2274	$map->save;	4040	$map->save;
2275	}	4041	}
2276	warn "end emergency map save\n";	4042	info "emergency_perl_save: end map save\n";
		4043
		4044	cf::write_runtime_sync; # external watchdog should not bark
		4045
		4046	info "emergency_perl_save: begin database checkpoint\n";
		4047	BDB::db_env_txn_checkpoint $DB_ENV;
		4048	info "emergency_perl_save: end database checkpoint\n";
		4049
		4050	info "emergency_perl_save: begin write uuid\n";
		4051	write_uuid_sync 1;
		4052	info "emergency_perl_save: end write uuid\n";
		4053
		4054	cf::write_runtime_sync; # external watchdog should not bark
		4055
		4056	trace "emergency_perl_save: syncing database to disk";
		4057	BDB::db_env_txn_checkpoint $DB_ENV;
		4058
		4059	info "emergency_perl_save: starting sync\n";
		4060	IO::AIO::aio_sync sub {
		4061	info "emergency_perl_save: finished sync\n";
		4062	};
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	trace "emergency_perl_save: flushing outstanding aio requests";
		4067	while (IO::AIO::nreqs || BDB::nreqs) {
		4068	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4069	}
		4070
		4071	cf::write_runtime_sync; # external watchdog should not bark
2277	};	4072	};
2278		4073
2279	warn "leave emergency perl save\n";	4074	info "emergency_perl_save: leave\n";
2280	}	4075	}
2281		4076
		4077	sub post_cleanup {
		4078	my ($make_core) = @_;
		4079
		4080	IO::AIO::flush;
		4081
		4082	error Carp::longmess "post_cleanup backtrace"
		4083	if $make_core;
		4084
		4085	my $fh = pidfile;
		4086	unlink $PIDFILE if <$fh> == $$;
		4087	}
		4088
		4089	# a safer delete_package, copied from Symbol
		4090	sub clear_package($) {
		4091	my $pkg = shift;
		4092
		4093	# expand to full symbol table name if needed
		4094	unless ($pkg =~ /^main::.*::$/) {
		4095	$pkg = "main$pkg" if $pkg =~ /^::/;
		4096	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4097	$pkg .= '::' unless $pkg =~ /::$/;
		4098	}
		4099
		4100	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4101	my $stem_symtab = *{$stem}{HASH};
		4102
		4103	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4104	or return;
		4105
		4106	# clear all symbols
		4107	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4108	for my $name (keys %$leaf_symtab) {
		4109	_gv_clear *{"$pkg$name"};
		4110	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4111	}
		4112	}
		4113
2282	sub reload() {	4114	sub do_reload_perl() {
2283	# can/must only be called in main	4115	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2285	warn "can only reload from main coroutine\n";	4117	error "can only reload from main coroutine";
2286	return;	4118	return;
2287	}	4119	}
2288		4120
2289	warn "reloading...";	4121	return if $RELOAD++;
2290		4122
2291	warn "freezing server";	4123	my $t1 = AE::time;
2292	my $guard = freeze_mainloop;	4124
		4125	while ($RELOAD) {
		4126	cf::get_slot 0.1, -1, "reload_perl";
		4127	info "perl_reload: reloading...";
		4128
		4129	trace "perl_reload: entering sync_job";
		4130
		4131	cf::sync_job {
2293	cf::emergency_save;	4132	#cf::emergency_save;
2294		4133
2295	warn "sync database to disk";	4134	trace "perl_reload: cancelling all extension coros";
2296	cf::db_sync;
2297	IO::AIO::flush;
2298
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved
2301
2302	warn "cancel all watchers";
2303	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}
2306
2307	warn "cancel all extension coros";
2308	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	4136	%EXT_CORO = ();
2310		4137
2311	warn "remove commands";	4138	trace "perl_reload: removing commands";
2312	%COMMAND = ();	4139	%COMMAND = ();
2313		4140
2314	warn "remove ext commands";	4141	trace "perl_reload: removing ext/exti commands";
2315	%EXTCMD = ();	4142	%EXTCMD = ();
		4143	%EXTICMD = ();
2316		4144
2317	warn "unload/nuke all extensions";	4145	trace "perl_reload: unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	4146	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	4147	trace "... unloading $pkg";
2320		4148
2321	if (my $cb = $pkg->can ("unload")) {	4149	if (my $cb = $pkg->can ("unload")) {
2322	eval {	4150	eval {
2323	$cb->($pkg);	4151	$cb->($pkg);
2324	1	4152	1
2325	} or warn "$pkg unloaded, but with errors: $@";	4153	} or error "$pkg unloaded, but with errors: $@";
		4154	}
		4155
		4156	trace "... clearing $pkg";
		4157	clear_package $pkg;
2326	}	4158	}
2327		4159
2328	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;
2330	}
2331
2332	warn "unload all perl modules loaded from $LIBDIR";	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	4161	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		4163
2336	warn "removing <$k>";	4164	trace "... unloading $k";
2337	delete $INC{$k};	4165	delete $INC{$k};
2338		4166
2339	$k =~ s/\.pm$//;	4167	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	4168	$k =~ s/\//::/g;
2341		4169
2342	if (my $cb = $k->can ("unload_module")) {	4170	if (my $cb = $k->can ("unload_module")) {
2343	$cb->();	4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2344	}	4175	}
2345		4176
2346	Symbol::delete_package $k;
2347	}
2348
2349	warn "get rid of safe::, as good as possible";	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2352		4180
2353	warn "unload cf.pm \"a bit\"";	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
		4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2355		4184
2356	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2357	# and global variables created in xs	4186	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2359		4188
2360	warn "reloading cf.pm";	4189	info "perl_reload: unload completed, starting to reload now";
		4190
		4191	trace "perl_reload: reloading cf.pm";
2361	require cf;	4192	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2363		4194
2364	warn "load config and database again";	4195	trace "perl_reload: loading config and database again";
2365	cf::cfg_load;	4196	cf::reload_config;
2366	cf::db_load;
2367		4197
2368	warn "load extensions";	4198	trace "perl_reload: loading extensions";
2369	cf::load_extensions;	4199	cf::load_extensions;
2370		4200
		4201	if ($REATTACH_ON_RELOAD) {
2371	warn "reattach attachments to objects/players";	4202	trace "perl_reload: reattaching attachments to objects/players";
2372	_global_reattach;	4203	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	4204	trace "perl_reload: reattaching attachments to maps";
2374	reattach $_ for values %MAP;	4205	reattach $_ for values %MAP;
		4206	trace "perl_reload: reattaching attachments to players";
		4207	reattach $_ for values %PLAYER;
		4208	}
		4209
		4210	cf::_post_init 1;
		4211
		4212	trace "perl_reload: leaving sync_job";
		4213
		4214	1
		4215	} or do {
		4216	error $@;
		4217	cf::cleanup "perl_reload: error, exiting.";
		4218	};
		4219
		4220	--$RELOAD;
		4221	}
		4222
		4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
		4225	};
		4226
		4227	our $RELOAD_WATCHER; # used only during reload
		4228
		4229	sub reload_perl() {
		4230	# doing reload synchronously and two reloads happen back-to-back,
		4231	# coro crashes during coro_state_free->destroy here.
		4232
		4233	$RELOAD_WATCHER ||= cf::async {
		4234	Coro::AIO::aio_wait cache_extensions;
		4235
		4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4237	do_reload_perl;
		4238	undef $RELOAD_WATCHER;
		4239	};
2375	};	4240	};
2376
2377	if ($@) {
2378	warn $@;
2379	warn "error while reloading, exiting.";
2380	exit 1;
2381	}
2382
2383	warn "reloaded";
2384	};
2385
2386	#############################################################################
2387
2388	unless ($LINK_MAP) {
2389	$LINK_MAP = cf::map::new;
2390
2391	$LINK_MAP->width (41);
2392	$LINK_MAP->height (41);
2393	$LINK_MAP->alloc;
2394	$LINK_MAP->path ("{link}");
2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2397
2398	# dirty hack because... archetypes are not yet loaded
2399	Event->timer (
2400	after => 10,
2401	cb => sub {
2402	$_[0]->w->cancel;
2403
2404	# provide some exits "home"
2405	my $exit = cf::object::new "exit";
2406
2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2410
2411	$LINK_MAP->insert ($exit->clone, 19, 19);
2412	$LINK_MAP->insert ($exit->clone, 19, 20);
2413	$LINK_MAP->insert ($exit->clone, 19, 21);
2414	$LINK_MAP->insert ($exit->clone, 20, 19);
2415	$LINK_MAP->insert ($exit->clone, 20, 21);
2416	$LINK_MAP->insert ($exit->clone, 21, 19);
2417	$LINK_MAP->insert ($exit->clone, 21, 20);
2418	$LINK_MAP->insert ($exit->clone, 21, 21);
2419
2420	$exit->destroy;
2421	});
2422
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	4241	}
2428		4242
2429	register_command "reload" => sub {	4243	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2431		4245
2432	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	4247	$who->message ("reloading server.");
		4248	async {
		4249	$Coro::current->{desc} = "perl_reload";
		4250	reload_perl;
		4251	};
2436	}	4252	}
2437	};	4253	};
2438		4254
2439	unshift @INC, $LIBDIR;	4255	#############################################################################
2440		4256
2441	$TICK_WATCHER = Event->timer (	4257	my $bug_warning = 0;
2442	reentrant => 0,
2443	prio => 0,
2444	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,
2446	cb => sub {
2447	cf::server_tick; # one server iteration
2448	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;
2450		4258
		4259	sub wait_for_tick() {
		4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4261
		4262	$WAIT_FOR_TICK->wait;
		4263	}
		4264
		4265	sub wait_for_tick_begin() {
		4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4267
		4268	my $signal = new Coro::Signal;
		4269	push @WAIT_FOR_TICK_BEGIN, $signal;
		4270	$signal->wait;
		4271	}
		4272
		4273	sub tick {
		4274	if ($Coro::current != $Coro::main) {
		4275	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4276	unless ++$bug_warning > 10;
		4277	return;
		4278	}
		4279
		4280	cf::one_tick; # one server iteration
		4281
		4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4283
		4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4286	Coro::async_pool {
		4287	$Coro::current->{desc} = "runtime saver";
		4288	write_runtime_sync
		4289	or error "ERROR: unable to write runtime file: $!";
		4290	};
		4291	}
		4292
		4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4294	$sig->send;
		4295	}
2451	$WAIT_FOR_TICK->broadcast;	4296	$WAIT_FOR_TICK->broadcast;
2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2453		4297
2454	# if we are delayed by four ticks or more, skip them all	4298	$LOAD = ($NOW - $TICK_START) / $TICK;
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2456		4300
2457	$TICK_WATCHER->at ($NEXT_TICK);	4301	if (0) {
2458	$TICK_WATCHER->start;	4302	if ($NEXT_TICK) {
		4303	my $jitter = $TICK_START - $NEXT_TICK;
		4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4305	debug "jitter $JITTER\n";#d#
		4306	}
2459	},	4307	}
2460	);	4308	}
2461		4309
		4310	{
		4311	# configure BDB
		4312	info "initialising database";
		4313
		4314	BDB::min_parallel 16;
		4315	BDB::max_poll_reqs $TICK * 0.1;
		4316	#$AnyEvent::BDB::WATCHER->priority (1);
		4317
		4318	unless ($DB_ENV) {
		4319	$DB_ENV = BDB::db_env_create;
		4320	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4321	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4322	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4323	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4324	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4325
		4326	cf::sync_job {
		4327	eval {
		4328	BDB::db_env_open
		4329	$DB_ENV,
		4330	$BDBDIR,
		4331	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4333	0666;
		4334
		4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4336	};
		4337
		4338	cf::cleanup "db_env_open(db): $@" if $@;
		4339	};
		4340	}
		4341
		4342	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4343	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4344	};
		4345	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4346	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4347	};
		4348	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4349	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4350	};
		4351
		4352	info "database initialised";
		4353	}
		4354
		4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
		4359	IO::AIO::min_parallel 8;
2462	IO::AIO::max_poll_time $TICK * 0.2;	4360	IO::AIO::max_poll_time $TICK * 0.1;
		4361	undef $AnyEvent::AIO::WATCHER;
		4362	info "aio initialised";
		4363	}
2463		4364
2464	Event->io (	4365	our $_log_backtrace;
2465	fd => IO::AIO::poll_fileno,	4366	our $_log_backtrace_last;
2466	poll => 'r',
2467	prio => 5,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471		4367
2472	Event->timer (	4368	sub _log_backtrace {
2473	data => WF_AUTOCANCEL,	4369	my ($msg, @addr) = @_;
2474	after => 0,	4370
2475	interval => 10,	4371	$msg =~ s/\n$//;
2476	cb => sub {	4372
2477	(Coro::unblock_sub {	4373	if ($_log_backtrace_last eq $msg) {
2478	write_runtime	4374	LOG llevInfo, "[ABT] $msg\n";
2479	or warn "ERROR: unable to write runtime file: $!";	4375	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4376	# limit the # of concurrent backtraces
		4377	} elsif ($_log_backtrace < 2) {
		4378	$_log_backtrace_last = $msg;
		4379	++$_log_backtrace;
		4380	my $perl_bt = Carp::longmess $msg;
		4381	async {
		4382	$Coro::current->{desc} = "abt $msg";
		4383
		4384	my @bt = fork_call {
		4385	@addr = map { sprintf "%x", $_ } @addr;
		4386	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4387	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4388	or die "addr2line: $!";
		4389
		4390	my @funcs;
		4391	my @res = <$fh>;
		4392	chomp for @res;
		4393	while (@res) {
		4394	my ($func, $line) = splice @res, 0, 2, ();
		4395	push @funcs, "[$func] $line";
		4396	}
		4397
		4398	@funcs
		4399	};
		4400
		4401	LOG llevInfo, "[ABT] $perl_bt\n";
		4402	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4403	LOG llevInfo, "[ABT] $_\n" for @bt;
		4404	--$_log_backtrace;
2480	})->();	4405	};
		4406	} else {
		4407	LOG llevInfo, "[ABT] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2481	},	4409	}
2482	);	4410	}
		4411
		4412	# load additional modules
		4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2483		4415
2484	END { cf::emergency_save }	4416	END { cf::emergency_save }
2485		4417
2486	1	4418	1
2487		4419

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