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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.214 by root, Wed Feb 14 00:40:05 2007 UTC vs.
Revision 1.614 by root, Mon Nov 26 15:12:16 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 3.5 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
20	use BDB ();	58	use BDB ();
21	use Data::Dumper;	59	use Data::Dumper;
22	use Digest::MD5;
23	use Fcntl;	60	use Fcntl;
24	use IO::AIO 2.32 ();
25	use YAML::Syck ();	61	use YAML::XS ();
26	use Time::HiRes;	62	use IO::AIO ();
27	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
28		65
		66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		78
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		83
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	our @ORIG_INC;
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		85
40	our %COMMAND = ();	86	our %COMMAND = ();
41	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
42		88
43	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
47		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	98	our @EVENT;
49	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
50		101
51	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	103
53	our $AIO_POLL_WATCHER;	104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	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;
56	our $NOW;	144	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		145
59	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
60	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
61
62	our %CFG;
63
64	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;
66
67	our %PLAYER; # all users
68	our %MAP; # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		149
76	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
79	binmode STDOUT;	166	binmode STDOUT;
80	binmode STDERR;	167	binmode STDERR;
81		168
82	# read virtual server time, if available	169	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
87	}	174	}
88		175
89	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
90	mkdir cf::localdir . "/" . cf::playerdir;	177
91	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
92	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		180
96	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
97		182
98	sub cf::map::normalise;	183	sub cf::map::normalise;
99		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
100	#############################################################################	189	#############################################################################
101		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
102	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
103		203
104	=over 4	204	=over 4
105		205
106	=item $cf::UPTIME	206	=item $cf::UPTIME
107		207
108	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.
109		224
110	=item $cf::RUNTIME	225	=item $cf::RUNTIME
111		226
112	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
113	every server tick.	228	every server tick.
114		229
115	=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
116		233
117	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		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
120	=item $cf::NOW	245	=item $cf::LOAD
121		246
122	The time of the last (current) server tick.	247	The raw value load value from the last tick.
123
124	=item $cf::TICK
125
126	The interval between server ticks, in seconds.
127		248
128	=item %cf::CFG	249	=item %cf::CFG
129		250
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	252	from wherever your confdir points to.
132		253
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		255
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
137	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
138	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
139		289
140	=back	290	=back
141		291
142	=cut	292	=cut
143		293
144	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
145	*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 {
146	my $msg = join "", @_;	301	my $msg = join "", @_;
147	utf8::encode $msg;
148		302
149	$msg .= "\n"	303	$msg .= "\n"
150	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
151		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
152	LOG llevError, $msg;	308	LOG llevWarn, $msg;
153	};	309	};
154	}	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	};
155		324
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		332
163	# 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
164	# within the Safe compartment.	334	# within the Safe compartment.
165	for my $pkg (qw(	335	for my $pkg (qw(
166	cf::global cf::attachable	336	cf::global cf::attachable
167	cf::object cf::object::player	337	cf::object cf::object::player
168	cf::client cf::player	338	cf::client cf::player
169	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
170	cf::map cf::party cf::region	341	cf::party cf::region
171	)) {	342	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	344	}
175		345
176	$Event::DIED = sub {	346	$EV::DIED = sub {
177	warn "error in event callback: @_";	347	warn "error in event callback: $@";
178	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
179		356
180	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
181		358
182	=over 4	359	=over 4
183		360
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	380	$d
204	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
205	}	382	}
206		383
207	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
208		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
209	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
210		437
211	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
212		439
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
221		441
222	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
223		443
224	=cut	444	=cut
225		445
226	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
228	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	}
229	}	511	}
230		512
231	=item cf::lock_wait $string	513	=item cf::lock_wait $string
232		514
233	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
234		516
235	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
236		518
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
240	returned.	522	returned.
241		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
242	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
243	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
244		529
245	=cut	530	=item $locked = cf::lock_active $string
246		531
247	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
248		537
249	sub lock_wait($) {	538	sub lock_wait($) {
250	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
251
252	# wait for lock, if any
253	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;
256	}
257	}	540	}
258		541
259	sub lock_acquire($) {	542	sub lock_acquire($) {
260	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
261		545
262	# wait, to be sure we are not locked	546	sub lock_active($) {
263	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
264
265	$LOCK{$key} = [];
266
267	Coro::guard {
268	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };
270	}
271	}	548	}
272		549
273	sub freeze_mainloop {	550	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
275		552
276	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
277	$TICK_WATCHER->start;	554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
278	};	623	}
279	$TICK_WATCHER->stop;	624	};
280	$guard	625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
281	}	639	}
282		640
283	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
284		642
285	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		648
291	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
292		650
293	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
294		652
295	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
298		657
299	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
302	fast or be very important.	661	fast or be very important.
…		…
304	=cut	663	=cut
305		664
306	sub sync_job(&) {	665	sub sync_job(&) {
307	my ($job) = @_;	666	my ($job) = @_;
308		667
309	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
310	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
312		673
313	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	675
315	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
316		677
317	my $busy = 1;	678	my $busy = 1;
318	my @res;	679	my @res;
319		680
320	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	683	@res = eval { $job->() };
322	warn $@ if $@;	684	error $@ if $@;
323	undef $busy;	685	undef $busy;
324	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
325		687
326	while ($busy) {	688	while ($busy) {
327	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
328	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
329		699
330	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
331	} else {	701	} else {
332	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
333		703
…		…
353	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
354		724
355	$coro	725	$coro
356	}	726	}
357		727
358	sub write_runtime {	728	=item fork_call { }, @args
359	my $runtime = cf::localdir . "/runtime";
360		729
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
362	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.
363		734
364	my $value = $cf::RUNTIME + 90 + 10;	735	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		736
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	737	sub post_fork {
369	and return;	738	reset_signals;
		739	}
370		740
371	# always fsync - this file is important	741	sub fork_call(&@) {
372	aio_fsync $fh	742	my ($cb, @args) = @_;
373	and return;
374		743
375	close $fh	744	my @res = Coro::Util::fork_eval {
376	or return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
377		748
378	aio_rename "$runtime~", $runtime	749	wantarray ? @res : $res[-1]
379	and return;	750	}
380		751
		752	sub objinfo {
381	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
382	}	927	}
383		928
384	=back	929	=back
385		930
386	=cut	931	=cut
387		932
388	#############################################################################	933	#############################################################################
389		934
390	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
391		936
392	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
393	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
394	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
395		940
396	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
397	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
398	crossfire+).	943	Deliantra).
399		944
400	=over 4	945	=over 4
401		946
402	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
403		948
…		…
447	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
448		993
449	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
450	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
451		996
452	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
453	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
454		999
455	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
456		1001
457	=over 4	1002	=over 4
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
567		1112
568	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		1117
573	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
575		1120
576	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
581		1126
582	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
583	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
584		1129
585	} elsif (ref $type) {	1130	} elsif (ref $type) {
586	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
587		1132
588	} else {	1133	} else {
589	shift @arg;	1134	shift @arg;
590	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
591	}	1136	}
592	}	1137	}
593	}	1138	}
594		1139
595	sub _object_attach {	1140	sub _object_attach {
…		…
605	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
606	}	1151	}
607		1152
608	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
609	} else {	1154	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
611	}	1156	}
612		1157
613	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
614	}	1159	}
615		1160
…		…
617	if (ref $_[0]) {	1162	if (ref $_[0]) {
618	_object_attach @_;	1163	_object_attach @_;
619	} else {	1164	} else {
620	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
621	}	1166	}
		1167	_recalc_want;
622	};	1168	};
623		1169
624	# all those should be optimised	1170	# all those should be optimised
625	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
630	reattach ($obj);	1176	reattach ($obj);
631	} else {	1177	} else {
632	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
633	}	1179	}
		1180	_recalc_want;
634	};	1181	};
635		1182
636	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
638		1185
…		…
653	";	1200	";
654	die if $@;	1201	die if $@;
655	}	1202	}
656		1203
657	our $override;	1204	our $override;
658	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
659		1206
660	sub override {	1207	sub override {
661	$override = 1;	1208	$override = 1;
662	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
663	}	1210	}
664		1211
665	sub do_invoke {	1212	sub do_invoke {
666	my $event = shift;	1213	my $event = shift;
667	my $callbacks = shift;	1214	my $callbacks = shift;
668		1215
669	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
670		1217
671	local $override;	1218	local $override;
672		1219
673	for (@$callbacks) {	1220	for (@$callbacks) {
674	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
675		1222
676	if ($@) {	1223	if ($@) {
677	warn "$@";
678	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
679	override;	1225	override;
680	}	1226	}
681		1227
682	return 1 if $override;	1228	return 1 if $override;
683	}	1229	}
684		1230
685	0	1231	0
686	}	1232	}
687		1233
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		1235
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1237
692	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
693		1239
694	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
695	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
696	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1243
698	=back	1244	=back
699		1245
700	=cut	1246	=cut
701		1247
702	#############################################################################	1248	#############################################################################
703	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
704		1292
705	sub reattach {	1293	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1295	my ($obj) = @_;
708		1296
		1297	# no longer needed after getting rid of delete_package?
709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
710		1299
711	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
712		1301
713	@$registry = ();	1302	@$registry = ();
714		1303
…		…
719	for (@$attach) {	1308	for (@$attach) {
720	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
721	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
722	}	1311	}
723	} else {	1312	} else {
724	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
725	}	1314	}
726	}	1315	}
727	}	1316	}
728		1317
729	cf::attachable->attach (	1318	cf::attachable->attach (
730	prio => -1000000,	1319	prio => -1000000,
731	on_instantiate => sub {	1320	on_instantiate => sub {
732	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
733		1322
734	$data = from_json $data;	1323	$data = decode_json $data;
735		1324
736	for (@$data) {	1325	for (@$data) {
737	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
738		1327
739	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1344	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
757		1346
758	sync_job {	1347	sync_job {
759	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
762		1353
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	aio_fsync $fh if $cf::USE_FSYNC;	1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1359	aio_fsync $fh;
		1360	}
767	close $fh;	1361	aio_close $fh;
768		1362
769	if (@$objs) {	1363	if (@$objs) {
770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
774	aio_fsync $fh if $cf::USE_FSYNC;	1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1370	aio_fsync $fh;
		1371	}
775	close $fh;	1372	aio_close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
777	}	1374	}
778	} else {	1375	} else {
779	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
780	}	1377	}
781		1378
782	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
783	} else {	1383	} else {
784	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
785	}	1385	}
786	} else {	1386	} else {
787	aio_unlink $filename;	1387	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
789	}	1389	}
790
791	#d##TODO# nuke non .map-files if exist
792	if ($filename =~ s/\.map$//) {
793	aio_unlink $filename;
794	aio_unlink "$filename.pst";
795	}
796	}	1390	};
797	}	1391	}
798		1392
799	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
800	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
801		1395
…		…
806		1400
807	sub object_thawer_load {	1401	sub object_thawer_load {
808	my ($filename) = @_;	1402	my ($filename) = @_;
809		1403
810	my ($data, $av);	1404	my ($data, $av);
811
812	#d#TODO remove .map if file does not exist
813	aio_stat $filename and $filename =~ s/\.map$//;
814		1405
815	(aio_load $filename, $data) >= 0	1406	(aio_load $filename, $data) >= 0
816	or return;	1407	or return;
817		1408
818	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
819	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
820	or return;	1411	or return;
		1412
821	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
822	}	1415	}
823		1416
		1417	utf8::decode (my $decname = $filename);
824	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
825	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
826	return ($data, $av);	1422	($data, $av)
827	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
828		1430
829	#############################################################################	1431	#############################################################################
830	# command handling &c	1432	# command handling &c
831		1433
832	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
833		1435
834	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
835	$name.	1437	$name.
836		1438
837	=cut	1439	=cut
…		…
843	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
844		1446
845	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
846	}	1448	}
847		1449
848	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
849		1451
850	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
851		1457
852	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
853	called.
854		1459
855	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
856		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
857	sub register_extcmd {	1482	sub register_extcmd($$) {
858	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
859		1484
860	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
861	}	1486	}
862		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
863	cf::player->attach (	1508	cf::player->attach (
864	on_command => sub {	1509	on_unknown_command => sub {
865	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
866		1511
867	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
868	or return;	1513	or return;
869		1514
…		…
874	cf::override;	1519	cf::override;
875	},	1520	},
876	on_extcmd => sub {	1521	on_extcmd => sub {
877	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
878		1523
879	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
880		1525
881	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
883	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
884	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
885	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
886	}	1547	}
		1548
887	} else {	1549	} else {
888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
889	}	1551	}
890		1552
891	cf::override;	1553	cf::override;
892	},	1554	},
893	);	1555	);
894		1556
		1557	# "readahead" all extensions
895	sub load_extension {	1558	sub cache_extensions {
896	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
897		1560
898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
899	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
900	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
901	$pkg =~ s/[^[:word:]]/_/g;
902	$pkg = "ext::$pkg";
903
904	warn "... loading '$path' into '$pkg'\n";
905
906	open my $fh, "<:utf8", $path
907	or die "$path: $!";
908
909	my $source =
910	"package $pkg; use strict; use utf8;\n"
911	. "#line 1 \"$path\"\n{\n"
912	. (do { local $/; <$fh> })
913	. "\n};\n1";
914
915	unless (eval $source) {
916	my $msg = $@ ? "$path: $@\n"
917	: "extension disabled.\n";
918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
919	warn $@;
920	warn "mandatory extension failed to load, exiting.\n";
921	exit 1;
922	}	1564	}
923	die $@;
924	}	1565	};
925		1566
926	push @EXTS, $pkg;	1567	$grp
		1568	}
		1569
		1570	sub _ext_cfg_reg($$$$) {
		1571	my ($rvar, $varname, $cfgname, $default) = @_;
		1572
		1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
927	}	1579	}
928		1580
929	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
930	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
931	next unless -r $ext;	1590	next unless -r $path;
932	eval {	1591
933	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
934	1	1664	}
935	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
936	}	1677	};
937	}	1678	}
938		1679
939	#############################################################################	1680	#############################################################################
940		1681
		1682	=back
		1683
941	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
942		1685
943	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
944		1687
945	=cut	1688	=cut
946		1689
947	package cf::player;	1690	package cf::player;
948		1691
…		…
950		1693
951	=head3 cf::player	1694	=head3 cf::player
952		1695
953	=over 4	1696	=over 4
954		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
955	=item cf::player::find $login	1712	=item cf::player::find $login
956		1713
957	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
958		1715
959	=cut	1716	=cut
960		1717
961	sub playerdir($) {	1718	sub playerdir($) {
962	cf::localdir	1719	"$PLAYERDIR/"
963	. "/"
964	. cf::playerdir
965	. "/"
966	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
967	}	1721	}
968		1722
969	sub path($) {	1723	sub path($) {
970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
971		1725
972	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
973	}	1727	}
974		1728
975	sub find_active($) {	1729	sub find_active($) {
976	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
977	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
980		1734
981	sub exists($) {	1735	sub exists($) {
982	my ($login) = @_;	1736	my ($login) = @_;
983		1737
984	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
985	or cf::sync_job { !aio_stat path $login }	1739	or !aio_stat path $login
986	}	1740	}
987		1741
988	sub find($) {	1742	sub find($) {
989	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
990	my $login = $_[0];	1744	my $login = $_[0];
991		1745
992	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
993		1747
994	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
995	my $pl = load_pl path $login	1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
996	or return;	1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
997	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
998	}	1765	}
999	}	1766	}
1000	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($pl, $path) = @_;
		1772
		1773	# restore slots saved in save, below
		1774	my $slots = delete $pl->{_slots};
		1775
		1776	$pl->ob->current_weapon ($slots->[0]);
		1777	$pl->combat_ob ($slots->[1]);
		1778	$pl->ranged_ob ($slots->[2]);
		1779	},
		1780	);
1001		1781
1002	sub save($) {	1782	sub save($) {
1003	my ($pl) = @_;	1783	my ($pl) = @_;
1004		1784
1005	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1010	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1011		1791
1012	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1013	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1014		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
1015	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1016	Coro::cede;	1801	cf::cede_to_tick;
1017	}	1802	}
1018		1803
1019	sub new($) {	1804	sub new($) {
1020	my ($login) = @_;	1805	my ($login) = @_;
1021		1806
…		…
1027	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1028		1813
1029	$self	1814	$self
1030	}	1815	}
1031		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
1032	=item $pl->quit_character	1827	=item $pl->quit_character
1033		1828
1034	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1035	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1036		1831
1037	=cut	1832	=cut
1038		1833
1039	sub quit_character {	1834	sub quit_character {
1040	my ($pl) = @_;	1835	my ($pl) = @_;
1041		1836
		1837	my $name = $pl->ob->name;
		1838
1042	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1043	$pl->password ("*"); # this should lock out the player until we nuked the dir	1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1044		1841
1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1046	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1048	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1049		1850
1050	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1051	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1052	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1053	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1054	$pl->destroy;	1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
1055	IO::AIO::aio_rmtree $temp;	1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
1056	}	1877	}
1057		1878
1058	=item cf::player::list_logins	1879	=item cf::player::list_logins
1059		1880
1060	Returns am arrayref of all valid playernames in the system, can take a	1881	Returns am arrayref of all valid playernames in the system, can take a
1061	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1062		1883
1063	=cut	1884	=cut
1064		1885
1065	sub list_logins {	1886	sub list_logins {
1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1067	or return [];	1888	or return [];
1068		1889
1069	my @logins;	1890	my @logins;
1070		1891
1071	for my $login (@$dirs) {	1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1073	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1074	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1075		1902
1076	utf8::decode $login;	1903	utf8::decode $login;
1077	push @logins, $login;	1904	push @logins, $login;
1078	}	1905	}
1079		1906
1080	\@logins	1907	\@logins
1081	}	1908	}
1082		1909
1083	=item $player->maps	1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
1084		1913
1085	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1086	player. May block.	1915	player. May block.
1087		1916
1088	=cut	1917	=cut
…		…
1106	}	1935	}
1107		1936
1108	\@paths	1937	\@paths
1109	}	1938	}
1110		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1111	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1112		1945
1113	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1114		1947
1115	=cut	1948	=cut
1116		1949
1117	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1118	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1119		1952
1120	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1121
1122	$self->send ("ext " . cf::to_json \%msg);
1123	}	1954	}
1124		1955
1125	package cf;	1956	=head3 cf::region
		1957
		1958	=over 4
		1959
		1960	=cut
		1961
		1962	package cf::region;
		1963
		1964	=item cf::region::find_by_path $path
		1965
		1966	Tries to decuce the likely region for a map knowing only its path.
		1967
		1968	=cut
		1969
		1970	sub find_by_path($) {
		1971	my ($path) = @_;
		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
		1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
		1985	}
1126		1986
1127	=back	1987	=back
1128
1129		1988
1130	=head3 cf::map	1989	=head3 cf::map
1131		1990
1132	=over 4	1991	=over 4
1133		1992
…		…
1145	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1146	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1147		2006
1148	sub generate_random_map {	2007	sub generate_random_map {
1149	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1150	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1151	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1155	$rmp->{exit_on_final_map},
1156	$rmp->{xsize}, $rmp->{ysize},
1157	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1158	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1159	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1160	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1161	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1162	(cf::region::find $rmp->{region}), $rmp->{custom}
1163	)
1164	}	2013	}
1165		2014
1166	=item cf::map->register ($regex, $prio)	2015	=item cf::map->register ($regex, $prio)
1167		2016
1168	Register a handler for the map path matching the given regex at the	2017	Register a handler for the map path matching the given regex at the
…		…
1173		2022
1174	sub register {	2023	sub register {
1175	my (undef, $regex, $prio) = @_;	2024	my (undef, $regex, $prio) = @_;
1176	my $pkg = caller;	2025	my $pkg = caller;
1177		2026
1178	no strict;
1179	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1180		2028
1181	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1182	}	2030	}
1183		2031
1184	# also paths starting with '/'	2032	# also paths starting with '/'
1185	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1186		2034
1187	sub thawer_merge {	2035	sub thawer_merge {
1188	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1189		2037
1190	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1191	local $self->{path};	2039	local $self->{path};
1192	local $self->{load_path};	2040	local $self->{load_path};
1193	local $self->{deny_save};
1194	local $self->{deny_reset};
1195		2041
1196	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1197	}	2043	}
1198		2044
1199	sub normalise {	2045	sub normalise {
1200	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
1201		2047
1202	$path = "$path"; # make sure its a string	2048	$path = "$path"; # make sure it's a string
1203		2049
1204	$path =~ s/\.map$//;	2050	$path =~ s/\.map$//;
1205		2051
1206	# map plan:	2052	# map plan:
1207	#	2053	#
…		…
1222	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1223	$path = "$base/$path";	2069	$path = "$base/$path";
1224	}	2070	}
1225		2071
1226	for ($path) {	2072	for ($path) {
1227	redo if s{//}{/};
1228	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1229	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1230	}	2075	}
1231		2076
1232	$path	2077	$path
…		…
1246	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1247	return $self;	2092	return $self;
1248	}	2093	}
1249	}	2094	}
1250		2095
1251	Carp::carp "unable to resolve path '$path' (base '$base').";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1252	()	2097	()
1253	}	2098	}
1254		2099
		2100	# may re-bless or do other evil things
1255	sub init {	2101	sub init {
1256	my ($self) = @_;	2102	my ($self) = @_;
1257		2103
1258	$self	2104	$self
1259	}	2105	}
…		…
1271		2117
1272	# the original (read-only) location	2118	# the original (read-only) location
1273	sub load_path {	2119	sub load_path {
1274	my ($self) = @_;	2120	my ($self) = @_;
1275		2121
1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1277	}	2123	}
1278		2124
1279	# the temporary/swap location	2125	# the temporary/swap location
1280	sub save_path {	2126	sub save_path {
1281	my ($self) = @_;	2127	my ($self) = @_;
1282		2128
1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1285	}	2131	}
1286		2132
1287	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1288	sub uniq_path {	2134	sub uniq_path {
1289	my ($self) = @_;	2135	my ($self) = @_;
1290		2136
1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1293	}	2139	}
1294		2140
1295	# and all this just because we cannot iterate over	2141	sub decay_objects {
1296	# all maps in C++...
1297	sub change_all_map_light {
1298	my ($change) = @_;	2142	my ($self) = @_;
1299		2143
1300	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1301	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1302	}	2147	}
1303		2148
1304	sub unlink_save {	2149	sub unlink_save {
1305	my ($self) = @_;	2150	my ($self) = @_;
1306		2151
1307	utf8::encode (my $save = $self->save_path);	2152	utf8::encode (my $save = $self->save_path);
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1310
1311	#d#TODO remove .map and also nuke
1312	$save =~ s/\.map// or return;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1315	}	2155	}
1316		2156
1317	sub load_header_from($) {	2157	sub load_header_from($) {
1318	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1319		2159
1320	utf8::encode $path;	2160	utf8::encode $path;
1321	#aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1322	# or return;
1323
1324	$self->_load_header ($path)
1325	or return;	2162	or return;
1326		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1327	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1328		2171
1329	1	2172	1
1330	}	2173	}
1331		2174
		2175	# used to laod the header of an original map
1332	sub load_header_orig {	2176	sub load_header_orig {
1333	my ($self) = @_;	2177	my ($self) = @_;
1334		2178
1335	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1336	}	2180	}
1337		2181
		2182	# used to laod the header of an instantiated map
1338	sub load_header_temp {	2183	sub load_header_temp {
1339	my ($self) = @_;	2184	my ($self) = @_;
1340		2185
1341	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
1342	}	2187	}
1343		2188
		2189	# called after loading the header from an instantiated map
1344	sub prepare_temp {	2190	sub prepare_temp {
1345	my ($self) = @_;	2191	my ($self) = @_;
1346		2192
1347	$self->last_access ((delete $self->{last_access})	2193	$self->last_access ((delete $self->{last_access})
1348	|| $cf::RUNTIME); #d#	2194	|| $cf::RUNTIME); #d#
1349	# safety	2195	# safety
1350	$self->{instantiate_time} = $cf::RUNTIME	2196	$self->{instantiate_time} = $cf::RUNTIME
1351	if $self->{instantiate_time} > $cf::RUNTIME;	2197	if $self->{instantiate_time} > $cf::RUNTIME;
1352	}	2198	}
1353		2199
		2200	# called after loading the header from an original map
1354	sub prepare_orig {	2201	sub prepare_orig {
1355	my ($self) = @_;	2202	my ($self) = @_;
1356		2203
1357	$self->{load_original} = 1;	2204	$self->{load_original} = 1;
1358	$self->{instantiate_time} = $cf::RUNTIME;	2205	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1369	$self->load_header_orig	2216	$self->load_header_orig
1370	or return;	2217	or return;
1371	$self->prepare_orig;	2218	$self->prepare_orig;
1372	}	2219	}
1373		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
		2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
1374	1	2227	1
1375	}	2228	}
1376		2229
1377	sub find;	2230	sub find;
1378	sub find {	2231	sub find {
1379	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1380		2233
		2234	cf::cede_to_tick;
		2235
1381	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1382		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1383	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1384		2240
1385	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1386	my $guard = cf::lock_acquire "map_find:$path";
1387	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1388	or return;	2243	or return;
1389		2244
1390	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1391		2246
1392	$map->load_header	2247	$map->load_header
1393	or return;	2248	or return;
1394		2249
1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1396	# doing this can freeze the server in a sync job, obviously	2251	# doing this can freeze the server in a sync job, obviously
1397	#$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1398	$map->reset;	2255	$map->reset;
1399	undef $guard;
1400	return find $path;	2256	return find $path;
1401	}	2257	}
1402		2258
1403	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1404	}	2260	}
1405	}	2261	}
1406		2262
1407	sub pre_load { }	2263	sub pre_load { }
1408	sub post_load { }	2264	#sub post_load { } # XS
1409		2265
1410	sub load {	2266	sub load {
1411	my ($self) = @_;	2267	my ($self) = @_;
1412		2268
1413	local $self->{deny_reset} = 1; # loading can take a long time	2269	local $self->{deny_reset} = 1; # loading can take a long time
1414		2270
1415	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1416	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1417		2275
1418	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1419		2278
1420	$self->in_memory (cf::MAP_LOADING);
1421
1422	$self->alloc;	2279	$self->alloc;
1423		2280
1424	$self->pre_load;	2281	$self->pre_load;
		2282	cf::cede_to_tick;
1425		2283
1426	$self->_load_objects ($self->{load_path}, 1)	2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
1427	or return;	2288	or return;
1428		2289
1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1430	if delete $self->{load_original};	2291	if delete $self->{load_original};
1431		2292
1432	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1433	utf8::encode $uniq;	2294	utf8::encode $uniq;
1434	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1435	$self->clear_unique_items;	2297	$self->clear_unique_items;
1436	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1437	}	2302	}
1438	}
1439		2303
1440	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1441		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1442	# now do the right thing for maps	2313	# now do the right thing for maps
1443	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1444
1445	unless ($self->{deny_activate}) {
1446	$self->decay_objects;
1447	$self->fix_auto_apply;
1448	$self->update_buttons;
1449	Coro::cede;
1450	$self->set_darkness_map;
1451	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1452	unless $self->difficulty;	2316	unless $self->difficulty;
1453	Coro::cede;	2317	cf::cede_to_tick;
1454	$self->activate;	2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
1455	}	2329	}
1456		2330
1457	$self->post_load;	2331	$self->post_load;
1458		2332
1459	$self->in_memory (cf::MAP_IN_MEMORY);	2333	1
1460	}	2334	}
1461		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1462	sub customise_for {	2339	sub customise_for {
1463	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1464		2341
1465	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1466	if $self->per_player;	2343	if $self->per_player;
1467		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1468	$self	2348	$self
1469	}
1470
1471	# find and load all maps in the 3x3 area around a map
1472	sub load_diag {
1473	my ($map) = @_;
1474
1475	my @diag; # diagonal neighbours
1476
1477	for (0 .. 3) {
1478	my $neigh = $map->tile_path ($_)
1479	or next;
1480	$neigh = find $neigh, $map
1481	or next;
1482	$neigh->load;
1483
1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1486	}
1487
1488	for (@diag) {
1489	my $neigh = find @$_
1490	or next;
1491	$neigh->load;
1492	}
1493	}	2349	}
1494		2350
1495	sub find_sync {	2351	sub find_sync {
1496	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1497		2353
1498	cf::sync_job { find $path, $origin }	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
1499	}	2359	}
1500		2360
1501	sub do_load_sync {	2361	sub do_load_sync {
1502	my ($map) = @_;	2362	my ($map) = @_;
1503		2363
1504	cf::sync_job { $map->load };	2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
1505	}	2369	}
1506		2370
1507	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1508	our $MAP_PREFETCHER = undef;	2372	our $MAP_PREFETCHER = undef;
1509		2373
1510	sub find_async {	2374	sub find_async {
1511	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1512		2376
1513	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1514		2378
1515	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
1517	}	2381	}
1518		2382
1519	undef $MAP_PREFETCH{$path};	2383	$MAP_PREFETCH{$path} |= $load;
		2384
1520	$MAP_PREFETCHER ||= cf::async {	2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
1521	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1522	for my $path (keys %MAP_PREFETCH) {	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1523	my $map = find $path	2390	if (my $map = find $k) {
1524	or next;
1525	$map->load;	2391	$map->load if $v;
		2392	}
1526		2393
1527	delete $MAP_PREFETCH{$path};	2394	delete $MAP_PREFETCH{$k};
1528	}	2395	}
1529	}	2396	}
1530	undef $MAP_PREFETCHER;	2397	undef $MAP_PREFETCHER;
1531	};	2398	};
1532	$MAP_PREFETCHER->prio (6);	2399	$MAP_PREFETCHER->prio (6);
1533		2400
1534	()	2401	()
1535	}	2402	}
1536		2403
		2404	# common code, used by both ->save and ->swapout
1537	sub save {	2405	sub _save {
1538	my ($self) = @_;	2406	my ($self) = @_;
1539
1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
1541		2407
1542	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1543		2409
1544	return unless $self->dirty;	2410	return unless $self->dirty;
1545		2411
…		…
1551	return if $self->{deny_save};	2417	return if $self->{deny_save};
1552		2418
1553	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1554		2420
1555	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1556	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1557	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1558		2427
1559	if ($uniq) {	2428	if ($uniq) {
1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1562	} else {	2431	} else {
1563	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1564	}	2433	}
1565	}	2434	}
1566		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1567	sub swap_out {	2444	sub swap_out {
1568	my ($self) = @_;	2445	my ($self) = @_;
1569		2446
1570	# save first because save cedes
1571	$self->save;
1572
1573	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1574		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1575	return if $self->players;	2451	return if $self->players;
1576	return if $self->in_memory != cf::MAP_IN_MEMORY;
1577	return if $self->{deny_save};
1578		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
1579	$self->clear;	2462	$self->clear;
1580	$self->in_memory (cf::MAP_SWAPPED);
1581	}	2463	}
1582		2464
1583	sub reset_at {	2465	sub reset_at {
1584	my ($self) = @_;	2466	my ($self) = @_;
1585		2467
1586	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
1588	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1589		2470
1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1591	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1592		2473
…		…
1603	my ($self) = @_;	2484	my ($self) = @_;
1604		2485
1605	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2487
1607	return if $self->players;	2488	return if $self->players;
1608	return if $self->isa ("ext::map_per_player");#d#
1609		2489
1610	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1611		2491
1612	$self->in_memory (cf::MAP_SWAPPED);	2492	$self->state (cf::MAP_SWAPPED);
1613		2493
1614	# need to save uniques path	2494	# need to save uniques path
1615	unless ($self->{deny_save}) {	2495	unless ($self->{deny_save}) {
1616	my $uniq = $self->uniq_path; utf8::encode $uniq;	2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1617		2497
…		…
1619	if $uniq;	2499	if $uniq;
1620	}	2500	}
1621		2501
1622	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1623		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1624	$self->clear;	2506	$self->clear;
1625
1626	$_->clear_links_to ($self) for values %cf::MAP;
1627		2507
1628	$self->unlink_save;	2508	$self->unlink_save;
1629	$self->destroy;	2509	$self->destroy;
1630	}	2510	}
1631		2511
1632	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1633		2513
1634	sub nuke {	2514	sub nuke {
1635	my ($self) = @_;	2515	my ($self) = @_;
1636		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1637	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1638		2521
1639	$self->unlink_save;	2522	$self->unlink_save;
1640		2523
1641	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1642	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1643	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1644	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1646		2529
1647	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1648		2532
1649	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
1650	}	2570	}
1651		2571
1652	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1653		2573
1654	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1655	instantiated unique items. May block.	2575	instantiated unique items. May block.
1656		2576
1657	=cut	2577	=cut
1658		2578
1659	sub unique_maps() {	2579	sub unique_maps() {
1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1661	or return;	2581	map {
1662
1663	my @paths;
1664
1665	for (@$files) {
1666	utf8::decode $_;	2582	utf8::decode $_;
1667	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1668	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1669		2585	? ()
1670	push @paths, cf::map::normalise $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1671	}	2588	]
1672
1673	\@paths
1674	}	2589	}
1675		2590
1676	package cf;	2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
1677		2622
1678	=back	2623	=back
1679		2624
1680	=head3 cf::object	2625	=head3 cf::object
1681		2626
…		…
1685		2630
1686	=over 4	2631	=over 4
1687		2632
1688	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1689		2634
1690	Returns the inventory of the object _and_ their inventories, recursively.	2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
1691		2637
1692	=cut	2638	=cut
1693		2639
1694	sub inv_recursive_;	2640	sub inv_recursive_;
1695	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1698		2644
1699	sub inv_recursive {	2645	sub inv_recursive {
1700	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1701	}	2647	}
1702		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
1703	package cf;	2677	package cf;
1704		2678
1705	=back	2679	=back
1706		2680
1707	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1713	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1714	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1715	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1716		2690
1717	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1718		2706
1719	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1720	# with dialog boxes.	2708	# with dialog boxes.
1721	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1722	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1724		2712
1725	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1726		2714
1727	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1728	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1729	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1730	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1731	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1732	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1733	}	2740	}
1734		2741
1735	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1736		2743
1737	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
1738	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
1739		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
1740	=cut	2772	=cut
1741		2773
1742	sub cf::object::player::may {	2774	sub cf::object::player::may {
1743	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
1744		2776
1745	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
1746	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
1747	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1748	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
1749	}	2781	}
1750		2782
1751	=item $player_object->enter_link	2783	=item $player_object->enter_link
1752		2784
1753	Freezes the player and moves him/her to a special map (C<{link}>).	2785	Freezes the player and moves him/her to a special map (C<{link}>).
1754		2786
1755	The player should be reasonably safe there for short amounts of time. You	2787	The player should be reasonably safe there for short amounts of time (e.g.
1756	I<MUST> call C<leave_link> as soon as possible, though.	2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
1757		2791
1758	Will never block.	2792	Will never block.
1759		2793
1760	=item $player_object->leave_link ($map, $x, $y)	2794	=item $player_object->leave_link ($map, $x, $y)
1761		2795
…		…
1781	sub cf::object::player::enter_link {	2815	sub cf::object::player::enter_link {
1782	my ($self) = @_;	2816	my ($self) = @_;
1783		2817
1784	$self->deactivate_recursive;	2818	$self->deactivate_recursive;
1785		2819
		2820	++$self->{_link_recursion};
		2821
1786	return if UNIVERSAL::isa $self->map, "ext::map_link";	2822	return if UNIVERSAL::isa $self->map, "ext::map_link";
1787		2823
1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2824	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1789	if $self->map;	2825	if $self->map && $self->map->{path} ne "{link}";
1790		2826
1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2827	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1792	}	2828	}
1793		2829
1794	sub cf::object::player::leave_link {	2830	sub cf::object::player::leave_link {
1795	my ($self, $map, $x, $y) = @_;	2831	my ($self, $map, $x, $y) = @_;
		2832
		2833	return unless $self->contr->active;
1796		2834
1797	my $link_pos = delete $self->{_link_pos};	2835	my $link_pos = delete $self->{_link_pos};
1798		2836
1799	unless ($map) {	2837	unless ($map) {
1800	# restore original map position	2838	# restore original map position
…		…
1811	($x, $y) = (-1, -1)	2849	($x, $y) = (-1, -1)
1812	unless (defined $x) && (defined $y);	2850	unless (defined $x) && (defined $y);
1813		2851
1814	# use -1 or undef as default coordinates, not 0, 0	2852	# use -1 or undef as default coordinates, not 0, 0
1815	($x, $y) = ($map->enter_x, $map->enter_y)	2853	($x, $y) = ($map->enter_x, $map->enter_y)
1816	if $x <=0 && $y <= 0;	2854	if $x <= 0 && $y <= 0;
1817		2855
1818	$map->load;	2856	$map->load;
1819	$map->load_diag;
1820		2857
1821	return unless $self->contr->active;	2858	return unless $self->contr->active;
		2859
		2860	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2861	if ($self->enter_map ($map, $x, $y)) {
		2862	# entering was successful
		2863	delete $self->{_link_recursion};
		2864	# only activate afterwards, to support waiting in hooks
1822	$self->activate_recursive;	2865	$self->activate_recursive;
1823	$self->enter_map ($map, $x, $y);
1824	}
1825
1826	cf::player->attach (
1827	on_logout => sub {
1828	my ($pl) = @_;
1829
1830	# abort map switching before logout
1831	if ($pl->ob->{_link_pos}) {
1832	cf::sync_job {
1833	$pl->ob->leave_link
1834	};
1835	}
1836	},	2866	}
1837	on_login => sub {
1838	my ($pl) = @_;
1839		2867
1840	# try to abort aborted map switching on player login :)	2868	}
1841	# should happen only on crashes
1842	if ($pl->ob->{_link_pos}) {
1843	$pl->ob->enter_link;
1844	(async {
1845	# we need this sleep as the login has a concurrent enter_exit running
1846	# and this sleep increases chances of the player not ending up in scorn
1847	$pl->ob->reply (undef,
1848	"There was an internal problem at your last logout, "
1849	. "the server will try to bring you to your intended destination in a second.",
1850	cf::NDI_RED);
1851	Coro::Timer::sleep 1;
1852	$pl->ob->leave_link;
1853	})->prio (2);
1854	}
1855	},
1856	);
1857		2869
1858	=item $player_object->goto ($path, $x, $y)	2870	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1859		2871
		2872	Moves the player to the given map-path and coordinates by first freezing
		2873	her, loading and preparing them map, calling the provided $check callback
		2874	that has to return the map if sucecssful, and then unfreezes the player on
		2875	the new (success) or old (failed) map position. In either case, $done will
		2876	be called at the end of this process.
		2877
		2878	Note that $check will be called with a potentially non-loaded map, so if
		2879	it needs a loaded map it has to call C<< ->load >>.
		2880
1860	=cut	2881	=cut
		2882
		2883	our $GOTOGEN;
1861		2884
1862	sub cf::object::player::goto {	2885	sub cf::object::player::goto {
1863	my ($self, $path, $x, $y) = @_;	2886	my ($self, $path, $x, $y, $check, $done) = @_;
		2887
		2888	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2889	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2890	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2891	($path, $x, $y) = @$EMERGENCY_POSITION;
		2892	}
		2893
		2894	# do generation counting so two concurrent goto's will be executed in-order
		2895	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1864		2896
1865	$self->enter_link;	2897	$self->enter_link;
1866		2898
1867	(async {	2899	(async {
		2900	$Coro::current->{desc} = "player::goto $path $x $y";
		2901
		2902	# *tag paths override both path and x|y
		2903	if ($path =~ /^\*(.*)$/) {
		2904	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2905	my $ob = $obs[rand @obs];
		2906
		2907	# see if we actually can go there
		2908	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2909	$ob = $obs[rand @obs];
		2910	} else {
		2911	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2912	}
		2913	# else put us there anyways for now #d#
		2914
		2915	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2916	} else {
		2917	($path, $x, $y) = (undef, undef, undef);
		2918	}
		2919	}
		2920
1868	my $map = eval {	2921	my $map = eval {
1869	my $map = cf::map::find $path;	2922	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2923
		2924	if ($map) {
1870	$map = $map->customise_for ($self) if $map;	2925	$map = $map->customise_for ($self);
		2926	$map = $check->($map, $x, $y, $self) if $check && $map;
		2927	} else {
		2928	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2929	}
		2930
1871	$map	2931	$map
		2932	};
		2933
		2934	if ($@) {
		2935	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2936	LOG llevError | logBacktrace, Carp::longmess $@;
1872	} or	2937	}
1873	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1874		2938
		2939	if ($gen == $self->{_goto_generation}) {
		2940	delete $self->{_goto_generation};
1875	$self->leave_link ($map, $x, $y);	2941	$self->leave_link ($map, $x, $y);
		2942	}
		2943
		2944	$done->($self) if $done;
1876	})->prio (1);	2945	})->prio (1);
1877	}	2946	}
1878		2947
1879	=item $player_object->enter_exit ($exit_object)	2948	=item $player_object->enter_exit ($exit_object)
1880		2949
…		…
1900	}	2969	}
1901		2970
1902	sub prepare_random_map {	2971	sub prepare_random_map {
1903	my ($exit) = @_;	2972	my ($exit) = @_;
1904		2973
1905	my $guard = cf::lock_acquire "exit_prepare:$exit";
1906
1907	# all this does is basically replace the /! path by	2974	# all this does is basically replace the /! path by
1908	# a new random map path (?random/...) with a seed	2975	# a new random map path (?random/...) with a seed
1909	# that depends on the exit object	2976	# that depends on the exit object
1910		2977
1911	my $rmp = parse_random_map_params $exit->msg;	2978	my $rmp = parse_random_map_params $exit->msg;
…		…
1913	if ($exit->map) {	2980	if ($exit->map) {
1914	$rmp->{region} = $exit->region->name;	2981	$rmp->{region} = $exit->region->name;
1915	$rmp->{origin_map} = $exit->map->path;	2982	$rmp->{origin_map} = $exit->map->path;
1916	$rmp->{origin_x} = $exit->x;	2983	$rmp->{origin_x} = $exit->x;
1917	$rmp->{origin_y} = $exit->y;	2984	$rmp->{origin_y} = $exit->y;
		2985
		2986	$exit->map->touch;
1918	}	2987	}
1919		2988
1920	$rmp->{random_seed} ||= $exit->random_seed;	2989	$rmp->{random_seed} ||= $exit->random_seed;
1921		2990
1922	my $data = cf::to_json $rmp;	2991	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1923	my $md5 = Digest::MD5::md5_hex $data;	2992	my $md5 = Digest::MD5::md5_hex $data;
1924	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2993	my $meta = "$RANDOMDIR/$md5.meta";
1925		2994
1926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2995	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1927	aio_write $fh, 0, (length $data), $data, 0;	2996	aio_write $fh, 0, (length $data), $data, 0;
1928	undef $fh;	2997	undef $fh;
1929	aio_rename "$meta~", $meta;	2998	aio_rename "$meta~", $meta;
1930		2999
		3000	my $slaying = "?random/$md5";
		3001
		3002	if ($exit->valid) {
1931	$exit->slaying ("?random/$md5");	3003	$exit->slaying ("?random/$md5");
1932	$exit->msg (undef);	3004	$exit->msg (undef);
		3005	}
1933	}	3006	}
1934	}	3007	}
1935		3008
1936	sub cf::object::player::enter_exit {	3009	sub cf::object::player::enter_exit {
1937	my ($self, $exit) = @_;	3010	my ($self, $exit) = @_;
1938		3011
1939	return unless $self->type == cf::PLAYER;	3012	return unless $self->type == cf::PLAYER;
1940		3013
1941	if ($exit->slaying eq "/!") {
1942	#TODO: this should de-fi-ni-te-ly not be a sync-job
1943	cf::sync_job { prepare_random_map $exit };
1944	}
1945
1946	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1947	my $hp = $exit->stats->hp;
1948	my $sp = $exit->stats->sp;
1949
1950	$self->enter_link;	3014	$self->enter_link;
1951		3015
1952	(async {	3016	(async {
1953	$self->deactivate_recursive; # just to be sure	3017	$Coro::current->{desc} = "enter_exit";
		3018
1954	unless (eval {	3019	unless (eval {
		3020	$self->deactivate_recursive; # just to be sure
		3021
		3022	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3023	my $x = $exit->stats->hp;
		3024	my $y = $exit->stats->sp;
		3025
		3026	# special map handling
		3027	my $slaying = $exit->slaying;
		3028
		3029	# special map handling
		3030	if ($slaying eq "/!") {
		3031	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3032
		3033	prepare_random_map $exit
		3034	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3035
		3036	$map = $exit->slaying;
		3037
		3038	} elsif ($slaying eq '!up') {
		3039	$map = $exit->map->tile_path (cf::TILE_UP);
		3040	$x = $exit->x;
		3041	$y = $exit->y;
		3042
		3043	} elsif ($slaying eq '!down') {
		3044	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3045	$x = $exit->x;
		3046	$y = $exit->y;
		3047	}
		3048
1955	$self->goto ($slaying, $hp, $sp);	3049	$self->goto ($map, $x, $y);
1956		3050
		3051	# if exit is damned, update players death & WoR home-position
		3052	$self->contr->savebed ($map, $x, $y)
		3053	if $exit->flag (cf::FLAG_DAMNED);
		3054
1957	1;	3055	1
1958	}) {	3056	}) {
1959	$self->message ("Something went wrong deep within the crossfire server. "	3057	$self->message ("Something went wrong deep within the deliantra server. "
1960	. "I'll try to bring you back to the map you were before. "	3058	. "I'll try to bring you back to the map you were before. "
1961	. "Please report this to the dungeon master!",	3059	. "Please report this to the dungeon master!",
1962	cf::NDI_UNIQUE | cf::NDI_RED);	3060	cf::NDI_UNIQUE | cf::NDI_RED);
1963		3061
1964	warn "ERROR in enter_exit: $@";	3062	error "ERROR in enter_exit: $@";
1965	$self->leave_link;	3063	$self->leave_link;
1966	}	3064	}
1967	})->prio (1);	3065	})->prio (1);
1968	}	3066	}
1969		3067
1970	=head3 cf::client	3068	=head3 cf::client
1971		3069
1972	=over 4	3070	=over 4
1973		3071
1974	=item $client->send_drawinfo ($text, $flags)	3072	=item $client->send_big_packet ($pkt)
1975		3073
1976	Sends a drawinfo packet to the client. Circumvents output buffering so	3074	Like C<send_packet>, but tries to compress large packets, and fragments
1977	should not be used under normal circumstances.	3075	them as required.
1978		3076
1979	=cut	3077	=cut
1980		3078
		3079	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3080
		3081	sub cf::client::send_big_packet {
		3082	my ($self, $pkt) = @_;
		3083
		3084	# try lzf for large packets
		3085	$pkt = "lzf " . Compress::LZF::compress $pkt
		3086	if 1024 <= length $pkt and $self->{can_lzf};
		3087
		3088	# split very large packets
		3089	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3090	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3091	$pkt = "frag";
		3092	}
		3093
		3094	$self->send_packet ($pkt);
		3095	}
		3096
		3097	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3098
		3099	Send a msg packet to the client, formatting the msg for the client if
		3100	necessary. C<$type> should be a string identifying the type of the
		3101	message, with C<log> being the default. If C<$color> is negative, suppress
		3102	the message unless the client supports the msg packet.
		3103
		3104	=cut
		3105
		3106	# non-persistent channels (usually the info channel)
		3107	our %CHANNEL = (
		3108	"c/motd" => {
		3109	id => "infobox",
		3110	title => "MOTD",
		3111	reply => undef,
		3112	tooltip => "The message of the day",
		3113	},
		3114	"c/identify" => {
		3115	id => "infobox",
		3116	title => "Identify",
		3117	reply => undef,
		3118	tooltip => "Items recently identified",
		3119	},
		3120	"c/examine" => {
		3121	id => "infobox",
		3122	title => "Examine",
		3123	reply => undef,
		3124	tooltip => "Signs and other items you examined",
		3125	},
		3126	"c/shopinfo" => {
		3127	id => "infobox",
		3128	title => "Shop Info",
		3129	reply => undef,
		3130	tooltip => "What your bargaining skill tells you about the shop",
		3131	},
		3132	"c/book" => {
		3133	id => "infobox",
		3134	title => "Book",
		3135	reply => undef,
		3136	tooltip => "The contents of a note or book",
		3137	},
		3138	"c/lookat" => {
		3139	id => "infobox",
		3140	title => "Look",
		3141	reply => undef,
		3142	tooltip => "What you saw there",
		3143	},
		3144	"c/who" => {
		3145	id => "infobox",
		3146	title => "Players",
		3147	reply => undef,
		3148	tooltip => "Shows players who are currently online",
		3149	},
		3150	"c/body" => {
		3151	id => "infobox",
		3152	title => "Body Parts",
		3153	reply => undef,
		3154	tooltip => "Shows which body parts you posess and are available",
		3155	},
		3156	"c/statistics" => {
		3157	id => "infobox",
		3158	title => "Statistics",
		3159	reply => undef,
		3160	tooltip => "Shows your primary statistics",
		3161	},
		3162	"c/skills" => {
		3163	id => "infobox",
		3164	title => "Skills",
		3165	reply => undef,
		3166	tooltip => "Shows your experience per skill and item power",
		3167	},
		3168	"c/shopitems" => {
		3169	id => "infobox",
		3170	title => "Shop Items",
		3171	reply => undef,
		3172	tooltip => "Shows the items currently for sale in this shop",
		3173	},
		3174	"c/resistances" => {
		3175	id => "infobox",
		3176	title => "Resistances",
		3177	reply => undef,
		3178	tooltip => "Shows your resistances",
		3179	},
		3180	"c/pets" => {
		3181	id => "infobox",
		3182	title => "Pets",
		3183	reply => undef,
		3184	tooltip => "Shows information abotu your pets/a specific pet",
		3185	},
		3186	"c/perceiveself" => {
		3187	id => "infobox",
		3188	title => "Perceive Self",
		3189	reply => undef,
		3190	tooltip => "You gained detailed knowledge about yourself",
		3191	},
		3192	"c/uptime" => {
		3193	id => "infobox",
		3194	title => "Uptime",
		3195	reply => undef,
		3196	tooltip => "How long the server has been running since last restart",
		3197	},
		3198	"c/mapinfo" => {
		3199	id => "infobox",
		3200	title => "Map Info",
		3201	reply => undef,
		3202	tooltip => "Information related to the maps",
		3203	},
		3204	"c/party" => {
		3205	id => "party",
		3206	title => "Party",
		3207	reply => "gsay ",
		3208	tooltip => "Messages and chat related to your party",
		3209	},
		3210	"c/death" => {
		3211	id => "death",
		3212	title => "Death",
		3213	reply => undef,
		3214	tooltip => "Reason for and more info about your most recent death",
		3215	},
		3216	"c/fatal" => {
		3217	id => "fatal",
		3218	title => "Fatal Error",
		3219	reply => undef,
		3220	tooltip => "Reason for the server disconnect",
		3221	},
		3222	"c/say" => $SAY_CHANNEL,
		3223	"c/chat" => $CHAT_CHANNEL,
		3224	);
		3225
1981	sub cf::client::send_drawinfo {	3226	sub cf::client::send_msg {
		3227	my ($self, $channel, $msg, $color, @extra) = @_;
		3228
		3229	$msg = $self->pl->expand_cfpod ($msg)
		3230	unless $color & cf::NDI_VERBATIM;
		3231
		3232	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3233
		3234	# check predefined channels, for the benefit of C
		3235	if ($CHANNEL{$channel}) {
		3236	$channel = $CHANNEL{$channel};
		3237
		3238	$self->ext_msg (channel_info => $channel);
		3239	$channel = $channel->{id};
		3240
		3241	} elsif (ref $channel) {
		3242	# send meta info to client, if not yet sent
		3243	unless (exists $self->{channel}{$channel->{id}}) {
		3244	$self->{channel}{$channel->{id}} = $channel;
		3245	$self->ext_msg (channel_info => $channel);
		3246	}
		3247
		3248	$channel = $channel->{id};
		3249	}
		3250
		3251	return unless @extra || length $msg;
		3252
		3253	# default colour, mask it out
		3254	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3255	if $color & cf::NDI_DEF;
		3256
		3257	my $pkt = "msg "
		3258	. $self->{json_coder}->encode (
		3259	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3260	);
		3261
		3262	$self->send_big_packet ($pkt);
		3263	}
		3264
		3265	=item $client->ext_msg ($type, @msg)
		3266
		3267	Sends an ext event to the client.
		3268
		3269	=cut
		3270
		3271	sub cf::client::ext_msg($$@) {
1982	my ($self, $text, $flags) = @_;	3272	my ($self, $type, @msg) = @_;
1983		3273
1984	utf8::encode $text;	3274	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1985	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1986	}	3275	}
1987
1988		3276
1989	=item $success = $client->query ($flags, "text", \&cb)	3277	=item $success = $client->query ($flags, "text", \&cb)
1990		3278
1991	Queues a query to the client, calling the given callback with	3279	Queues a query to the client, calling the given callback with
1992	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3280	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1993	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3281	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1994		3282
1995	Queries can fail, so check the return code. Or don't, as queries will become	3283	Queries can fail, so check the return code. Or don't, as queries will
1996	reliable at some point in the future.	3284	become reliable at some point in the future.
1997		3285
1998	=cut	3286	=cut
1999		3287
2000	sub cf::client::query {	3288	sub cf::client::query {
2001	my ($self, $flags, $text, $cb) = @_;	3289	my ($self, $flags, $text, $cb) = @_;
…		…
2009	utf8::encode $text;	3297	utf8::encode $text;
2010	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3298	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2011		3299
2012	$self->send_packet ($self->{query_queue}[0][0])	3300	$self->send_packet ($self->{query_queue}[0][0])
2013	if @{ $self->{query_queue} } == 1;	3301	if @{ $self->{query_queue} } == 1;
		3302
		3303	1
		3304	}
		3305
		3306	=item $client->update_command_faces
		3307
		3308	=cut
		3309
		3310	our %COMMAND_FACE;
		3311
		3312	sub cf::client::update_command_faces {
		3313	my ($self) = @_;
		3314
		3315	my @faces = grep $_,
		3316	$COMMAND_FACE{preferred},
		3317	$COMMAND_FACE{standard},
		3318	$COMMAND_FACE{skill},
		3319	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3320	$COMMAND_FACE{emote},
		3321	;
		3322
		3323	$self->send_face ($_)
		3324	for @faces;
		3325	$self->flush_fx;
		3326
		3327	$self->ext_msg (command_list => @faces);
		3328	}
		3329
		3330	=item cf::client::set_command_face $type, $commands
		3331
		3332	=cut
		3333
		3334	sub cf::client::set_command_face {
		3335	my ($type, $list) = @_;
		3336
		3337	my $idx = &cf::face::set ( #d# ugly forward reference
		3338	"command_list/$type" => cf::FT_RSRC,
		3339	JSON::XS->new->utf8->encode ([ sort @$list ])
		3340	);
		3341
		3342	$COMMAND_FACE{$type} = $idx;
2014	}	3343	}
2015		3344
2016	cf::client->attach (	3345	cf::client->attach (
		3346	on_connect => sub {
		3347	my ($ns) = @_;
		3348
		3349	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3350	},
2017	on_reply => sub {	3351	on_reply => sub {
2018	my ($ns, $msg) = @_;	3352	my ($ns, $msg) = @_;
2019		3353
2020	# this weird shuffling is so that direct followup queries	3354	# this weird shuffling is so that direct followup queries
2021	# get handled first	3355	# get handled first
…		…
2033	} else {	3367	} else {
2034	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3368	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2035	}	3369	}
2036	}	3370	}
2037	},	3371	},
		3372	on_exticmd => sub {
		3373	my ($ns, $buf) = @_;
		3374
		3375	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3376
		3377	if (ref $msg) {
		3378	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3379
		3380	if (my $cb = $EXTIACMD{$type}) {
		3381	$cb->(
		3382	$ns,
		3383	sub {
		3384	$ns->ext_msg ("reply-$reply", @_)
		3385	if $reply;
		3386	},
		3387	@payload
		3388	);
		3389	} else {
		3390	my @reply;
		3391
		3392	if (my $cb = $EXTICMD{$type}) {
		3393	@reply = $cb->($ns, @payload);
		3394	}
		3395
		3396	$ns->ext_msg ("reply-$reply", @reply)
		3397	if $reply;
		3398	}
		3399	} else {
		3400	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3401	}
		3402
		3403	cf::override;
		3404	},
2038	);	3405	);
2039		3406
2040	=item $client->async (\&cb)	3407	=item $client->async (\&cb)
2041		3408
2042	Create a new coroutine, running the specified callback. The coroutine will	3409	Create a new coroutine, running the specified callback. The coroutine will
…		…
2058		3425
2059	$coro	3426	$coro
2060	}	3427	}
2061		3428
2062	cf::client->attach (	3429	cf::client->attach (
2063	on_destroy => sub {	3430	on_client_destroy => sub {
2064	my ($ns) = @_;	3431	my ($ns) = @_;
2065		3432
2066	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3433	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2067	},	3434	},
2068	);	3435	);
…		…
2083	our $safe = new Safe "safe";	3450	our $safe = new Safe "safe";
2084	our $safe_hole = new Safe::Hole;	3451	our $safe_hole = new Safe::Hole;
2085		3452
2086	$SIG{FPE} = 'IGNORE';	3453	$SIG{FPE} = 'IGNORE';
2087		3454
2088	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3455	$safe->permit_only (Opcode::opset qw(
		3456	:base_core :base_mem :base_orig :base_math :base_loop
		3457	grepstart grepwhile mapstart mapwhile
		3458	sort time
		3459	));
2089		3460
2090	# here we export the classes and methods available to script code	3461	# here we export the classes and methods available to script code
2091		3462
2092	=pod	3463	=pod
2093		3464
2094	The following fucntions and emthods are available within a safe environment:	3465	The following functions and methods are available within a safe environment:
2095		3466
2096	cf::object contr pay_amount pay_player map	3467	cf::object
		3468	contr pay_amount pay_player map x y force_find force_add destroy
		3469	insert remove name archname title slaying race decrease split
		3470	value
		3471
2097	cf::object::player player	3472	cf::object::player
2098	cf::player peaceful	3473	player
2099	cf::map trigger	3474
		3475	cf::player
		3476	peaceful
		3477
		3478	cf::map
		3479	trigger
2100		3480
2101	=cut	3481	=cut
2102		3482
2103	for (	3483	for (
2104	["cf::object" => qw(contr pay_amount pay_player map)],	3484	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3485	insert remove inv nrof name archname title slaying race
		3486	decrease split destroy change_exp value msg lore send_msg)],
2105	["cf::object::player" => qw(player)],	3487	["cf::object::player" => qw(player)],
2106	["cf::player" => qw(peaceful)],	3488	["cf::player" => qw(peaceful send_msg)],
2107	["cf::map" => qw(trigger)],	3489	["cf::map" => qw(trigger)],
2108	) {	3490	) {
2109	no strict 'refs';
2110	my ($pkg, @funs) = @$_;	3491	my ($pkg, @funs) = @$_;
2111	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3492	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2112	for @funs;	3493	for @funs;
2113	}	3494	}
2114		3495
…		…
2129		3510
2130	my $qcode = $code;	3511	my $qcode = $code;
2131	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3512	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2132	$qcode =~ s/\n/\\n/g;	3513	$qcode =~ s/\n/\\n/g;
2133		3514
		3515	%vars = (_dummy => 0) unless %vars;
		3516
		3517	my @res;
2134	local $_;	3518	local $_;
2135	local @safe::cf::_safe_eval_args = values %vars;
2136		3519
2137	my $eval =	3520	my $eval =
2138	"do {\n"	3521	"do {\n"
2139	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3522	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2140	. "#line 0 \"{$qcode}\"\n"	3523	. "#line 0 \"{$qcode}\"\n"
2141	. $code	3524	. $code
2142	. "\n}"	3525	. "\n}"
2143	;	3526	;
2144		3527
		3528	if ($CFG{safe_eval}) {
2145	sub_generation_inc;	3529	sub_generation_inc;
		3530	local @safe::cf::_safe_eval_args = values %vars;
2146	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3531	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2147	sub_generation_inc;	3532	sub_generation_inc;
		3533	} else {
		3534	local @cf::_safe_eval_args = values %vars;
		3535	@res = wantarray ? eval eval : scalar eval $eval;
		3536	}
2148		3537
2149	if ($@) {	3538	if ($@) {
2150	warn "$@";	3539	warn "$@",
2151	warn "while executing safe code '$code'\n";	3540	"while executing safe code '$code'\n",
2152	warn "with arguments " . (join " ", %vars) . "\n";	3541	"with arguments " . (join " ", %vars) . "\n";
2153	}	3542	}
2154		3543
2155	wantarray ? @res : $res[0]	3544	wantarray ? @res : $res[0]
2156	}	3545	}
2157		3546
…		…
2171	=cut	3560	=cut
2172		3561
2173	sub register_script_function {	3562	sub register_script_function {
2174	my ($fun, $cb) = @_;	3563	my ($fun, $cb) = @_;
2175		3564
2176	no strict 'refs';	3565	$fun = "safe::$fun" if $CFG{safe_eval};
2177	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3566	*$fun = $safe_hole->wrap ($cb);
2178	}	3567	}
2179		3568
2180	=back	3569	=back
2181		3570
2182	=cut	3571	=cut
2183
2184	#############################################################################
2185
2186	=head2 EXTENSION DATABASE SUPPORT
2187
2188	Crossfire maintains a very simple database for extension use. It can
2189	currently store anything that can be serialised using Storable, which
2190	excludes objects.
2191
2192	The parameter C<$family> should best start with the name of the extension
2193	using it, it should be unique.
2194
2195	=over 4
2196
2197	=item $value = cf::db_get $family => $key
2198
2199	Returns a single value from the database.
2200
2201	=item cf::db_put $family => $key => $value
2202
2203	Stores the given C<$value> in the family.
2204
2205	=cut
2206
2207	our $DB;
2208
2209	sub db_init {
2210	unless ($DB) {
2211	$DB = BDB::db_create $DB_ENV;
2212
2213	cf::sync_job {
2214	eval {
2215	$DB->set_flags (BDB::CHKSUM);
2216
2217	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2218	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2219	cf::cleanup "db_open(db): $!" if $!;
2220	};
2221	cf::cleanup "db_open(db): $@" if $@;
2222	};
2223
2224	my $path = cf::localdir . "/database.pst";
2225	if (stat $path) {
2226	cf::sync_job {
2227	my $pst = Storable::retrieve $path;
2228
2229	cf::db_put (board => data => $pst->{board});
2230	cf::db_put (guildrules => data => $pst->{guildrules});
2231	cf::db_put (rent => balance => $pst->{rent}{balance});
2232	BDB::db_env_txn_checkpoint $DB_ENV;
2233
2234	unlink $path;
2235	};
2236	}
2237	}
2238	}
2239
2240	sub db_get($$) {
2241	my $key = "$_[0]/$_[1]";
2242
2243	cf::sync_job {
2244	BDB::db_get $DB, undef, $key, my $data;
2245
2246	$! ? ()
2247	: Compress::LZF::sthaw $data
2248	}
2249	}
2250
2251	sub db_put($$$) {
2252	BDB::dbreq_pri 4;
2253	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2254	}
2255		3572
2256	#############################################################################	3573	#############################################################################
2257	# the server's init and main functions	3574	# the server's init and main functions
2258		3575
		3576	{
		3577	package cf::face;
		3578
		3579	our %HASH; # hash => idx
		3580	our @DATA; # dynamically-created facedata, only faceste 0 used
		3581	our @FOFS; # file offset, if > 0
		3582	our @SIZE; # size of face, in octets
		3583	our @META; # meta hash of face, if any
		3584	our $DATAFH; # facedata filehandle
		3585
		3586	# internal api, not finalised
		3587	sub set {
		3588	my ($name, $type, $data) = @_;
		3589
		3590	my $idx = cf::face::find $name;
		3591
		3592	if ($idx) {
		3593	delete $HASH{cf::face::get_csum $idx};
		3594	} else {
		3595	$idx = cf::face::alloc $name;
		3596	}
		3597
		3598	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3599
		3600	cf::face::set_type $idx, $type;
		3601	cf::face::set_csum $idx, 0, $hash;
		3602
		3603	# we need to destroy the SV itself, not just modify it, as a running ix
		3604	# might hold a reference to it: "delete" achieves that.
		3605	delete $FOFS[0][$idx];
		3606	delete $DATA[0][$idx];
		3607	$DATA[0][$idx] = $data;
		3608	$SIZE[0][$idx] = length $data;
		3609	delete $META[$idx];
		3610	$HASH{$hash} = $idx;#d#
		3611
		3612	$idx
		3613	}
		3614
		3615	sub _get_data($$$) {
		3616	my ($idx, $set, $cb) = @_;
		3617
		3618	if (defined $DATA[$set][$idx]) {
		3619	$cb->($DATA[$set][$idx]);
		3620	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3621	my $size = $SIZE[$set][$idx];
		3622	my $buf;
		3623	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3624	if ($_[0] == $size) {
		3625	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3626	$cb->($buf);
		3627	} else {
		3628	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3629	}
		3630	};
		3631	} else {
		3632	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3633	}
		3634	}
		3635
		3636	# rather ineffient
		3637	sub cf::face::get_data($;$) {
		3638	my ($idx, $set) = @_;
		3639
		3640	_get_data $idx, $set, Coro::rouse_cb;
		3641	Coro::rouse_wait
		3642	}
		3643
		3644	sub cf::face::ix {
		3645	my ($ns, $set, $idx, $pri) = @_;
		3646
		3647	_get_data $idx, $set, sub {
		3648	$ns->ix_send ($idx, $pri, $_[0]);
		3649	};
		3650	}
		3651	}
		3652
		3653	sub load_facedata($) {
		3654	my ($path) = @_;
		3655
		3656	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3657
		3658	trace "loading facedata from $path\n";
		3659
		3660	my $facedata = decode_storable load_file "$path/faceinfo";
		3661
		3662	$facedata->{version} == 2
		3663	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3664
		3665	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3666	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3667
		3668	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3669
		3670	# BEGIN ATOMIC
		3671	# from here on, everything must be atomic - no thread switch allowed
		3672	my $t1 = EV::time;
		3673
		3674	{
		3675	my $faces = $facedata->{faceinfo};
		3676
		3677	for my $face (sort keys %$faces) {
		3678	my $info = $faces->{$face};
		3679	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3680
		3681	cf::face::set_visibility $idx, $info->{visibility};
		3682	cf::face::set_magicmap $idx, $info->{magicmap};
		3683	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3684	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3685	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3686	$cf::face::HASH{$info->{hash64}} = $idx;
		3687	delete $cf::face::META[$idx];
		3688	}
		3689
		3690	while (my ($face, $info) = each %$faces) {
		3691	next unless $info->{smooth};
		3692
		3693	my $idx = cf::face::find $face
		3694	or next;
		3695
		3696	if (my $smooth = cf::face::find $info->{smooth}) {
		3697	cf::face::set_smooth $idx, $smooth;
		3698	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3699	} else {
		3700	error "smooth face '$info->{smooth}' not found for face '$face'";
		3701	}
		3702	}
		3703	}
		3704
		3705	{
		3706	my $anims = $facedata->{animinfo};
		3707
		3708	while (my ($anim, $info) = each %$anims) {
		3709	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3710	}
		3711
		3712	cf::anim::invalidate_all; # d'oh
		3713	}
		3714
		3715	{
		3716	my $res = $facedata->{resource};
		3717
		3718	while (my ($name, $info) = each %$res) {
		3719	if (defined (my $type = $info->{type})) {
		3720	# TODO: different hash - must free and use new index, or cache ixface data queue
		3721	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3722
		3723	cf::face::set_type $idx, $type;
		3724	cf::face::set_csum $idx, 0, $info->{hash};
		3725	$cf::face::SIZE[0][$idx] = $info->{size};
		3726	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3727	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3728	$cf::face::HASH{$info->{hash}} = $idx;
		3729	} else {
		3730	# $RESOURCE{$name} = $info; # unused
		3731	}
		3732	}
		3733	}
		3734
		3735	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3736
		3737	# HACK to clear player env face cache, we need some signal framework
		3738	# for this (global event?)
		3739	%ext::player_env::MUSIC_FACE_CACHE = ();
		3740
		3741	# END ATOMIC
		3742
		3743	cf::debug "facedata atomic update time ", EV::time - $t1;
		3744
		3745	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3746
		3747	aio_close $fh if $fh; # close old facedata
		3748
		3749	1
		3750	}
		3751
		3752	register_exticmd fx_want => sub {
		3753	my ($ns, $want) = @_;
		3754
		3755	while (my ($k, $v) = each %$want) {
		3756	$ns->fx_want ($k, $v);
		3757	}
		3758	};
		3759
2259	sub load_resources {	3760	sub load_resource_file($) {
2260	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3761	my $guard = lock_acquire "load_resource_file";
		3762
		3763	my $status = load_resource_file_ $_[0];
		3764	get_slot 0.1, 100;
		3765	cf::arch::commit_load;
		3766
		3767	$status
		3768	}
		3769
		3770	sub reload_exp_table {
		3771	_reload_exp_table;
		3772
		3773	cf::face::set
		3774	"res/exp_table" => FT_RSRC,
		3775	JSON::XS->new->utf8->canonical->encode (
		3776	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3777	);
		3778	}
		3779
		3780	sub reload_materials {
		3781	_reload_materials;
		3782	}
		3783
		3784	sub reload_regions {
		3785	# HACK to clear player env face cache, we need some signal framework
		3786	# for this (global event?)
		3787	%ext::player_env::MUSIC_FACE_CACHE = ();
		3788
		3789	load_resource_file "$MAPDIR/regions"
2261	or die "unable to load regions file\n";#d#	3790	or die "unable to load regions file\n";
2262	}
2263		3791
2264	sub cfg_load {	3792	for (cf::region::list) {
2265	open my $fh, "<:utf8", cf::confdir . "/config"	3793	$_->{match} = qr/$_->{match}/
2266	or return;	3794	if exists $_->{match};
		3795	}
		3796	}
2267		3797
2268	local $/;	3798	sub reload_facedata {
2269	*CFG = YAML::Syck::Load <$fh>;	3799	load_facedata $DATADIR
		3800	or die "unable to load facedata\n";
		3801	}
2270		3802
		3803	sub reload_archetypes {
		3804	load_resource_file "$DATADIR/archetypes"
		3805	or die "unable to load archetypes\n";
		3806
		3807	cf::face::set
		3808	"res/skill_info" => FT_RSRC,
		3809	JSON::XS->new->utf8->canonical->encode (
		3810	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3811	);
		3812
		3813	cf::face::set
		3814	"res/spell_paths" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3817	);
		3818
		3819	# command completion
		3820	my @commands;
		3821
		3822	for (0..cf::arch::skillvec_size - 1) {
		3823	my $skill = cf::arch::skillvec $_;
		3824	my $name = $skill->name;
		3825	my $flags = cf::skill_flags $skill->subtype;
		3826
		3827	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3828	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3829	}
		3830
		3831	cf::client::set_command_face skill => \@commands;
		3832	}
		3833
		3834	sub reload_treasures {
		3835	load_resource_file "$DATADIR/treasures"
		3836	or die "unable to load treasurelists\n";
		3837	}
		3838
		3839	sub reload_sound {
		3840	trace "loading sound config from $DATADIR/sound\n";
		3841
		3842	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3843
		3844	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3845	my $sound = $soundconf->{compat}[$_]
		3846	or next;
		3847
		3848	my $face = cf::face::find "sound/$sound->[1]";
		3849	cf::sound::set $sound->[0] => $face;
		3850	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3851	}
		3852
		3853	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3854	my $face = cf::face::find "sound/$v";
		3855	cf::sound::set $k => $face;
		3856	}
		3857	}
		3858
		3859	sub reload_resources {
		3860	trace "reloading resource files...\n";
		3861
		3862	reload_materials;
		3863	reload_facedata;
		3864	reload_exp_table;
		3865	reload_sound;
		3866	reload_archetypes;
		3867	reload_regions;
		3868	reload_treasures;
		3869
		3870	trace "finished reloading resource files\n";
		3871	}
		3872
		3873	sub reload_config {
		3874	trace "reloading config file...\n";
		3875
		3876	my $config = load_file "$CONFDIR/config";
		3877	utf8::decode $config;
		3878	*CFG = decode_yaml $config;
		3879
2271	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3880	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2272		3881
2273	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3882	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2274	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3883	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2275		3884
2276	if (exists $CFG{mlockall}) {	3885	if (exists $CFG{mlockall}) {
…		…
2280	};	3889	};
2281	warn $@ if $@;	3890	warn $@ if $@;
2282	}	3891	}
2283	}	3892	}
2284		3893
2285	sub init {	3894	sub pidfile() {
2286	load_resources;	3895	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3896	or die "$PIDFILE: $!";
		3897	flock $fh, &Fcntl::LOCK_EX
		3898	or die "$PIDFILE: flock: $!";
		3899	$fh
		3900	}
		3901
		3902	# make sure only one server instance is running at any one time
		3903	sub atomic {
		3904	my $fh = pidfile;
		3905
		3906	my $pid = <$fh>;
		3907	kill 9, $pid if $pid > 0;
		3908
		3909	seek $fh, 0, 0;
		3910	print $fh $$;
		3911	}
		3912
		3913	sub main_loop {
		3914	trace "EV::loop starting\n";
		3915	if (1) {
		3916	EV::loop;
		3917	}
		3918	trace "EV::loop returned\n";
		3919	goto &main_loop unless $REALLY_UNLOOP;
2287	}	3920	}
2288		3921
2289	sub main {	3922	sub main {
		3923	cf::init_globals; # initialise logging
		3924
		3925	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3926	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3927	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3928	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3929
		3930	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3931
2290	# we must not ever block the main coroutine	3932	# we must not ever block the main coroutine
2291	local $Coro::idle = sub {	3933	$Coro::idle = sub {
2292	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3934	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2293	(async {	3935	(async {
2294	Event::one_event;	3936	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3937	EV::loop EV::LOOP_ONESHOT;
2295	})->prio (Coro::PRIO_MAX);	3938	})->prio (Coro::PRIO_MAX);
2296	};	3939	};
2297		3940
2298	cfg_load;	3941	evthread_start IO::AIO::poll_fileno;
		3942
		3943	cf::sync_job {
		3944	cf::incloader::init ();
		3945
2299	db_init;	3946	db_init;
		3947
		3948	cf::init_anim;
		3949	cf::init_attackmess;
		3950	cf::init_dynamic;
		3951
		3952	cf::load_settings;
		3953
		3954	reload_resources;
		3955	reload_config;
		3956
		3957	cf::init_uuid;
		3958	cf::init_signals;
		3959	cf::init_skills;
		3960
		3961	cf::init_beforeplay;
		3962
		3963	atomic;
		3964
2300	load_extensions;	3965	load_extensions;
2301		3966
2302	$TICK_WATCHER->start;	3967	utime time, time, $RUNTIMEFILE;
2303	Event::loop;	3968
		3969	# no (long-running) fork's whatsoever before this point(!)
		3970	use POSIX ();
		3971	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3972
		3973	cf::_post_init 0;
		3974	};
		3975
		3976	cf::object::thawer::errors_are_fatal 0;
		3977	info "parse errors in files are no longer fatal from this point on.\n";
		3978
		3979	AE::postpone {
		3980	undef &main; # free gobs of memory :)
		3981	};
		3982
		3983	goto &main_loop;
2304	}	3984	}
2305		3985
2306	#############################################################################	3986	#############################################################################
2307	# initialisation and cleanup	3987	# initialisation and cleanup
2308		3988
2309	# install some emergency cleanup handlers	3989	# install some emergency cleanup handlers
2310	BEGIN {	3990	BEGIN {
		3991	our %SIGWATCHER = ();
2311	for my $signal (qw(INT HUP TERM)) {	3992	for my $signal (qw(INT HUP TERM)) {
2312	Event->signal (	3993	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2313	reentrant => 0,
2314	data => WF_AUTOCANCEL,
2315	signal => $signal,
2316	prio => 0,
2317	cb => sub {
2318	cf::cleanup "SIG$signal";	3994	cf::cleanup "SIG$signal";
2319	},
2320	);	3995	};
		3996	}
		3997	}
		3998
		3999	sub write_runtime_sync {
		4000	my $t0 = AE::time;
		4001
		4002	# first touch the runtime file to show we are still running:
		4003	# the fsync below can take a very very long time.
		4004
		4005	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4006
		4007	my $guard = cf::lock_acquire "write_runtime";
		4008
		4009	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4010	or return;
		4011
		4012	my $value = $cf::RUNTIME + 90 + 10;
		4013	# 10 is the runtime save interval, for a monotonic clock
		4014	# 60 allows for the watchdog to kill the server.
		4015
		4016	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4017	and return;
		4018
		4019	# always fsync - this file is important
		4020	aio_fsync $fh
		4021	and return;
		4022
		4023	# touch it again to show we are up-to-date
		4024	aio_utime $fh, undef, undef;
		4025
		4026	close $fh
		4027	or return;
		4028
		4029	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4030	and return;
		4031
		4032	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4033
2321	}	4034	1
		4035	}
		4036
		4037	our $uuid_lock;
		4038	our $uuid_skip;
		4039
		4040	sub write_uuid_sync($) {
		4041	$uuid_skip ||= $_[0];
		4042
		4043	return if $uuid_lock;
		4044	local $uuid_lock = 1;
		4045
		4046	my $uuid = "$LOCALDIR/uuid";
		4047
		4048	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4049	or return;
		4050
		4051	my $value = uuid_seq uuid_cur;
		4052
		4053	unless ($value) {
		4054	info "cowardly refusing to write zero uuid value!\n";
		4055	return;
		4056	}
		4057
		4058	my $value = uuid_str $value + $uuid_skip;
		4059	$uuid_skip = 0;
		4060
		4061	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4062	and return;
		4063
		4064	# always fsync - this file is important
		4065	aio_fsync $fh
		4066	and return;
		4067
		4068	close $fh
		4069	or return;
		4070
		4071	aio_rename "$uuid~", $uuid
		4072	and return;
		4073
		4074	trace "uuid file written ($value).\n";
		4075
		4076	1
		4077
		4078	}
		4079
		4080	sub write_uuid($$) {
		4081	my ($skip, $sync) = @_;
		4082
		4083	$sync ? write_uuid_sync $skip
		4084	: async { write_uuid_sync $skip };
2322	}	4085	}
2323		4086
2324	sub emergency_save() {	4087	sub emergency_save() {
2325	my $freeze_guard = cf::freeze_mainloop;	4088	my $freeze_guard = cf::freeze_mainloop;
2326		4089
2327	warn "enter emergency perl save\n";	4090	info "emergency_perl_save: enter\n";
		4091
		4092	# this is a trade-off: we want to be very quick here, so
		4093	# save all maps without fsync, and later call a global sync
		4094	# (which in turn might be very very slow)
		4095	local $USE_FSYNC = 0;
2328		4096
2329	cf::sync_job {	4097	cf::sync_job {
		4098	cf::write_runtime_sync; # external watchdog should not bark
		4099
2330	# use a peculiar iteration method to avoid tripping on perl	4100	# use a peculiar iteration method to avoid tripping on perl
2331	# refcount bugs in for. also avoids problems with players	4101	# refcount bugs in for. also avoids problems with players
2332	# and maps saved/destroyed asynchronously.	4102	# and maps saved/destroyed asynchronously.
2333	warn "begin emergency player save\n";	4103	info "emergency_perl_save: begin player save\n";
2334	for my $login (keys %cf::PLAYER) {	4104	for my $login (keys %cf::PLAYER) {
2335	my $pl = $cf::PLAYER{$login} or next;	4105	my $pl = $cf::PLAYER{$login} or next;
2336	$pl->valid or next;	4106	$pl->valid or next;
		4107	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2337	$pl->save;	4108	$pl->save;
2338	}	4109	}
2339	warn "end emergency player save\n";	4110	info "emergency_perl_save: end player save\n";
2340		4111
2341	warn "begin emergency map save\n";	4112	cf::write_runtime_sync; # external watchdog should not bark
		4113
		4114	info "emergency_perl_save: begin map save\n";
2342	for my $path (keys %cf::MAP) {	4115	for my $path (keys %cf::MAP) {
2343	my $map = $cf::MAP{$path} or next;	4116	my $map = $cf::MAP{$path} or next;
2344	$map->valid or next;	4117	$map->valid or next;
2345	$map->save;	4118	$map->save;
2346	}	4119	}
2347	warn "end emergency map save\n";	4120	info "emergency_perl_save: end map save\n";
2348		4121
2349	warn "begin emergency database checkpoint\n";	4122	cf::write_runtime_sync; # external watchdog should not bark
		4123
		4124	info "emergency_perl_save: begin database checkpoint\n";
2350	BDB::db_env_txn_checkpoint $DB_ENV;	4125	BDB::db_env_txn_checkpoint $DB_ENV;
2351	warn "end emergency database checkpoint\n";	4126	info "emergency_perl_save: end database checkpoint\n";
		4127
		4128	info "emergency_perl_save: begin write uuid\n";
		4129	write_uuid_sync 1;
		4130	info "emergency_perl_save: end write uuid\n";
		4131
		4132	cf::write_runtime_sync; # external watchdog should not bark
		4133
		4134	trace "emergency_perl_save: syncing database to disk";
		4135	BDB::db_env_txn_checkpoint $DB_ENV;
		4136
		4137	info "emergency_perl_save: starting sync\n";
		4138	IO::AIO::aio_sync sub {
		4139	info "emergency_perl_save: finished sync\n";
		4140	};
		4141
		4142	cf::write_runtime_sync; # external watchdog should not bark
		4143
		4144	trace "emergency_perl_save: flushing outstanding aio requests";
		4145	while (IO::AIO::nreqs || BDB::nreqs) {
		4146	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4147	}
		4148
		4149	cf::write_runtime_sync; # external watchdog should not bark
2352	};	4150	};
2353		4151
2354	warn "leave emergency perl save\n";	4152	info "emergency_perl_save: leave\n";
2355	}	4153	}
2356		4154
2357	sub post_cleanup {	4155	sub post_cleanup {
2358	my ($make_core) = @_;	4156	my ($make_core) = @_;
2359		4157
		4158	IO::AIO::flush;
		4159
2360	warn Carp::longmess "post_cleanup backtrace"	4160	error Carp::longmess "post_cleanup backtrace"
2361	if $make_core;	4161	if $make_core;
2362	}
2363		4162
		4163	my $fh = pidfile;
		4164	unlink $PIDFILE if <$fh> == $$;
		4165	}
		4166
		4167	# a safer delete_package, copied from Symbol
		4168	sub clear_package($) {
		4169	my $pkg = shift;
		4170
		4171	# expand to full symbol table name if needed
		4172	unless ($pkg =~ /^main::.*::$/) {
		4173	$pkg = "main$pkg" if $pkg =~ /^::/;
		4174	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4175	$pkg .= '::' unless $pkg =~ /::$/;
		4176	}
		4177
		4178	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4179	my $stem_symtab = *{$stem}{HASH};
		4180
		4181	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4182	or return;
		4183
		4184	# clear all symbols
		4185	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4186	for my $name (keys %$leaf_symtab) {
		4187	_gv_clear *{"$pkg$name"};
		4188	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4189	}
		4190	}
		4191
2364	sub reload() {	4192	sub do_reload_perl() {
2365	# can/must only be called in main	4193	# can/must only be called in main
2366	if ($Coro::current != $Coro::main) {	4194	unless (in_main) {
2367	warn "can only reload from main coroutine";	4195	error "can only reload from main coroutine";
2368	return;	4196	return;
2369	}	4197	}
2370		4198
2371	warn "reloading...";	4199	return if $RELOAD++;
2372		4200
2373	warn "entering sync_job";	4201	my $t1 = AE::time;
2374		4202
		4203	while ($RELOAD) {
		4204	cf::get_slot 0.1, -1, "reload_perl";
		4205	info "perl_reload: reloading...";
		4206
		4207	trace "perl_reload: entering sync_job";
		4208
2375	cf::sync_job {	4209	cf::sync_job {
2376	cf::write_runtime; # external watchdog should not bark
2377	cf::emergency_save;	4210	#cf::emergency_save;
2378	cf::write_runtime; # external watchdog should not bark
2379		4211
2380	warn "syncing database to disk";
2381	BDB::db_env_txn_checkpoint $DB_ENV;
2382
2383	# if anything goes wrong in here, we should simply crash as we already saved
2384
2385	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}
2389
2390	warn "flushing outstanding aio requests";
2391	for (;;) {
2392	BDB::flush;
2393	IO::AIO::flush;
2394	Coro::cede;
2395	last unless IO::AIO::nreqs || BDB::nreqs;
2396	warn "iterate...";
2397	}
2398
2399	warn "cancelling all extension coros";	4212	trace "perl_reload: cancelling all extension coros";
2400	$_->cancel for values %EXT_CORO;	4213	$_->cancel for values %EXT_CORO;
2401	%EXT_CORO = ();	4214	%EXT_CORO = ();
2402		4215
2403	warn "removing commands";	4216	trace "perl_reload: removing commands";
2404	%COMMAND = ();	4217	%COMMAND = ();
2405		4218
2406	warn "removing ext commands";	4219	trace "perl_reload: removing ext/exti commands";
2407	%EXTCMD = ();	4220	%EXTCMD = ();
		4221	%EXTICMD = ();
2408		4222
2409	warn "unloading/nuking all extensions";	4223	trace "perl_reload: unloading/nuking all extensions";
2410	for my $pkg (@EXTS) {	4224	for my $pkg (@EXTS) {
2411	warn "... unloading $pkg";	4225	trace "... unloading $pkg";
2412		4226
2413	if (my $cb = $pkg->can ("unload")) {	4227	if (my $cb = $pkg->can ("unload")) {
2414	eval {	4228	eval {
2415	$cb->($pkg);	4229	$cb->($pkg);
2416	1	4230	1
2417	} or warn "$pkg unloaded, but with errors: $@";	4231	} or error "$pkg unloaded, but with errors: $@";
		4232	}
		4233
		4234	trace "... clearing $pkg";
		4235	clear_package $pkg;
2418	}	4236	}
2419		4237
2420	warn "... nuking $pkg";
2421	Symbol::delete_package $pkg;
2422	}
2423
2424	warn "unloading all perl modules loaded from $LIBDIR";	4238	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2425	while (my ($k, $v) = each %INC) {	4239	while (my ($k, $v) = each %INC) {
2426	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4240	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2427		4241
2428	warn "... unloading $k";	4242	trace "... unloading $k";
2429	delete $INC{$k};	4243	delete $INC{$k};
2430		4244
2431	$k =~ s/\.pm$//;	4245	$k =~ s/\.pm$//;
2432	$k =~ s/\//::/g;	4246	$k =~ s/\//::/g;
2433		4247
2434	if (my $cb = $k->can ("unload_module")) {	4248	if (my $cb = $k->can ("unload_module")) {
2435	$cb->();	4249	$cb->();
		4250	}
		4251
		4252	clear_package $k;
2436	}	4253	}
2437		4254
2438	Symbol::delete_package $k;
2439	}
2440
2441	warn "getting rid of safe::, as good as possible";	4255	trace "perl_reload: getting rid of safe::, as good as possible";
2442	Symbol::delete_package "safe::$_"	4256	clear_package "safe::$_"
2443	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4257	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2444		4258
2445	warn "unloading cf.pm \"a bit\"";	4259	trace "perl_reload: unloading cf.pm \"a bit\"";
2446	delete $INC{"cf.pm"};	4260	delete $INC{"cf.pm"};
		4261	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2447		4262
2448	# don't, removes xs symbols, too,	4263	# don't, removes xs symbols, too,
2449	# and global variables created in xs	4264	# and global variables created in xs
2450	#Symbol::delete_package __PACKAGE__;	4265	#clear_package __PACKAGE__;
2451		4266
2452	warn "unload completed, starting to reload now";	4267	info "perl_reload: unload completed, starting to reload now";
2453		4268
2454	warn "reloading cf.pm";	4269	trace "perl_reload: reloading cf.pm";
2455	require cf;	4270	require cf;
2456	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4271	cf::_connect_to_perl_1;
2457		4272
2458	warn "loading config and database again";	4273	trace "perl_reload: loading config and database again";
2459	cf::cfg_load;	4274	cf::reload_config;
2460		4275
2461	warn "loading extensions";	4276	trace "perl_reload: loading extensions";
2462	cf::load_extensions;	4277	cf::load_extensions;
2463		4278
		4279	if ($REATTACH_ON_RELOAD) {
2464	warn "reattaching attachments to objects/players";	4280	trace "perl_reload: reattaching attachments to objects/players";
2465	_global_reattach;	4281	_global_reattach; # objects, sockets
2466	warn "reattaching attachments to maps";	4282	trace "perl_reload: reattaching attachments to maps";
2467	reattach $_ for values %MAP;	4283	reattach $_ for values %MAP;
		4284	trace "perl_reload: reattaching attachments to players";
		4285	reattach $_ for values %PLAYER;
		4286	}
2468		4287
2469	warn "loading reloadable resources";	4288	cf::_post_init 1;
2470	load_resources;
2471		4289
2472	warn "leaving sync_job";	4290	trace "perl_reload: leaving sync_job";
2473		4291
2474	1	4292	1
2475	} or do {	4293	} or do {
2476	warn $@;	4294	error $@;
2477	warn "error while reloading, exiting.";	4295	cf::cleanup "perl_reload: error, exiting.";
2478	exit 1;	4296	};
		4297
		4298	--$RELOAD;
		4299	}
		4300
		4301	$t1 = AE::time - $t1;
		4302	info "perl_reload: completed in ${t1}s\n";
		4303	};
		4304
		4305	our $RELOAD_WATCHER; # used only during reload
		4306
		4307	sub reload_perl() {
		4308	# doing reload synchronously and two reloads happen back-to-back,
		4309	# coro crashes during coro_state_free->destroy here.
		4310
		4311	$RELOAD_WATCHER ||= cf::async {
		4312	Coro::AIO::aio_wait cache_extensions;
		4313
		4314	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4315	do_reload_perl;
		4316	undef $RELOAD_WATCHER;
		4317	};
2479	};	4318	};
2480		4319	}
2481	warn "reloaded";
2482	};
2483
2484	our $RELOAD_WATCHER; # used only during reload
2485		4320
2486	register_command "reload" => sub {	4321	register_command "reload" => sub {
2487	my ($who, $arg) = @_;	4322	my ($who, $arg) = @_;
2488		4323
2489	if ($who->flag (FLAG_WIZ)) {	4324	if ($who->flag (FLAG_WIZ)) {
2490	$who->message ("reloading server.");	4325	$who->message ("reloading server.");
2491		4326	async {
2492	# doing reload synchronously and two reloads happen back-to-back,	4327	$Coro::current->{desc} = "perl_reload";
2493	# coro crashes during coro_state_free->destroy here.
2494
2495	$RELOAD_WATCHER ||= Event->timer (
2496	reentrant => 0,
2497	after => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => sub {
2500	reload;	4328	reload_perl;
2501	undef $RELOAD_WATCHER;
2502	},
2503	);	4329	};
2504	}	4330	}
2505	};	4331	};
2506		4332
2507	unshift @INC, $LIBDIR;	4333	#############################################################################
2508		4334
2509	my $bug_warning = 0;	4335	my $bug_warning = 0;
2510		4336
2511	$TICK_WATCHER = Event->timer (	4337	sub wait_for_tick() {
2512	reentrant => 0,	4338	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2513	parked => 1,	4339
2514	prio => 0,	4340	$WAIT_FOR_TICK->wait;
2515	at => $NEXT_TICK || $TICK,	4341	}
2516	data => WF_AUTOCANCEL,	4342
2517	cb => sub {	4343	sub wait_for_tick_begin() {
		4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4345
		4346	my $signal = new Coro::Signal;
		4347	push @WAIT_FOR_TICK_BEGIN, $signal;
		4348	$signal->wait;
		4349	}
		4350
		4351	sub tick {
2518	if ($Coro::current != $Coro::main) {	4352	if ($Coro::current != $Coro::main) {
2519	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4353	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2520	unless ++$bug_warning > 10;	4354	unless ++$bug_warning > 10;
2521	return;	4355	return;
2522	}	4356	}
2523		4357
2524	$NOW = Event::time;	4358	cf::one_tick; # one server iteration
2525		4359
2526	cf::server_tick; # one server iteration	4360	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2527	$RUNTIME += $TICK;
2528	$NEXT_TICK += $TICK;
2529		4361
2530	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4362	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2531	$NEXT_RUNTIME_WRITE = $NOW + 10;	4363	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2532	Coro::async_pool {	4364	Coro::async_pool {
		4365	$Coro::current->{desc} = "runtime saver";
2533	write_runtime	4366	write_runtime_sync
2534	or warn "ERROR: unable to write runtime file: $!";	4367	or error "ERROR: unable to write runtime file: $!";
2535	};
2536	}	4368	};
		4369	}
2537		4370
2538		4371	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4372	$sig->send;
		4373	}
2539	$WAIT_FOR_TICK->broadcast;	4374	$WAIT_FOR_TICK->broadcast;
2540	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2541		4375
2542	# my $AFTER = Event::time;	4376	$LOAD = ($NOW - $TICK_START) / $TICK;
2543	# warn $AFTER - $NOW;#d#	4377	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2544		4378
2545	# if we are delayed by four ticks or more, skip them all	4379	if (0) {
2546	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4380	if ($NEXT_TICK) {
2547		4381	my $jitter = $TICK_START - $NEXT_TICK;
2548	$TICK_WATCHER->at ($NEXT_TICK);	4382	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2549	$TICK_WATCHER->start;	4383	debug "jitter $JITTER\n";#d#
		4384	}
2550	},	4385	}
2551	);	4386	}
2552		4387
2553	{	4388	{
2554	BDB::max_poll_time $TICK * 0.1;	4389	# configure BDB
2555	$BDB_POLL_WATCHER = Event->io (	4390	info "initialising database";
2556	reentrant => 0,	4391
2557	fd => BDB::poll_fileno,
2558	poll => 'r',
2559	prio => 0,
2560	data => WF_AUTOCANCEL,
2561	cb => \&BDB::poll_cb,
2562	);
2563	BDB::min_parallel 8;	4392	BDB::min_parallel 16;
2564		4393	BDB::max_poll_reqs $TICK * 0.1;
2565	BDB::set_sync_prepare {	4394	#$AnyEvent::BDB::WATCHER->priority (1);
2566	my $status;
2567	my $current = $Coro::current;
2568	(
2569	sub {
2570	$status = $!;
2571	$current->ready; undef $current;
2572	},
2573	sub {
2574	Coro::schedule while defined $current;
2575	$! = $status;
2576	},
2577	)
2578	};
2579		4395
2580	unless ($DB_ENV) {	4396	unless ($DB_ENV) {
2581	$DB_ENV = BDB::db_env_create;	4397	$DB_ENV = BDB::db_env_create;
		4398	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4399	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4400	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4401	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4402	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2582		4403
2583	cf::sync_job {	4404	cf::sync_job {
2584	eval {	4405	eval {
2585	BDB::db_env_open	4406	BDB::db_env_open
2586	$DB_ENV,	4407	$DB_ENV,
2587	$BDB_ENV_DIR,	4408	$BDBDIR,
2588	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4409	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2589	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4410	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2590	0666;	4411	0666;
2591		4412
2592	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4413	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2593
2594	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2595	$DB_ENV->set_lk_detect;
2596	};	4414	};
2597		4415
2598	cf::cleanup "db_env_open(db): $@" if $@;	4416	cf::cleanup "db_env_open(db): $@" if $@;
2599	};	4417	};
2600	}	4418	}
		4419
		4420	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4421	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4422	};
		4423	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4424	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4425	};
		4426	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4427	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4428	};
		4429
		4430	info "database initialised";
2601	}	4431	}
2602		4432
2603	{	4433	{
		4434	# configure IO::AIO
		4435
		4436	info "initialising aio";
2604	IO::AIO::min_parallel 8;	4437	IO::AIO::min_parallel 8;
2605
2606	undef $Coro::AIO::WATCHER;
2607	IO::AIO::max_poll_time $TICK * 0.1;	4438	IO::AIO::max_poll_time $TICK * 0.1;
2608	$AIO_POLL_WATCHER = Event->io (	4439	undef $AnyEvent::AIO::WATCHER;
2609	reentrant => 0,	4440	info "aio initialised";
2610	data => WF_AUTOCANCEL,
2611	fd => IO::AIO::poll_fileno,
2612	poll => 'r',
2613	prio => 6,
2614	cb => \&IO::AIO::poll_cb,
2615	);
2616	}	4441	}
		4442
		4443	our $_log_backtrace;
		4444	our $_log_backtrace_last;
		4445
		4446	sub _log_backtrace {
		4447	my ($msg, @addr) = @_;
		4448
		4449	$msg =~ s/\n$//;
		4450
		4451	if ($_log_backtrace_last eq $msg) {
		4452	LOG llevInfo, "[ABT] $msg\n";
		4453	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4454	# limit the # of concurrent backtraces
		4455	} elsif ($_log_backtrace < 2) {
		4456	$_log_backtrace_last = $msg;
		4457	++$_log_backtrace;
		4458	my $perl_bt = Carp::longmess $msg;
		4459	async {
		4460	$Coro::current->{desc} = "abt $msg";
		4461
		4462	my @bt = fork_call {
		4463	@addr = map { sprintf "%x", $_ } @addr;
		4464	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4465	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4466	or die "addr2line: $!";
		4467
		4468	my @funcs;
		4469	my @res = <$fh>;
		4470	chomp for @res;
		4471	while (@res) {
		4472	my ($func, $line) = splice @res, 0, 2, ();
		4473	push @funcs, "[$func] $line";
		4474	}
		4475
		4476	@funcs
		4477	};
		4478
		4479	LOG llevInfo, "[ABT] $perl_bt\n";
		4480	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4481	LOG llevInfo, "[ABT] $_\n" for @bt;
		4482	--$_log_backtrace;
		4483	};
		4484	} else {
		4485	LOG llevInfo, "[ABT] $msg\n";
		4486	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4487	}
		4488	}
		4489
		4490	# load additional modules
		4491	require "cf/$_.pm" for @EXTRA_MODULES;
		4492	cf::_connect_to_perl_2;
2617		4493
2618	END { cf::emergency_save }	4494	END { cf::emergency_save }
2619		4495
2620	1	4496	1
2621		4497

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