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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.179 by root, Thu Jan 18 20:39:00 2007 UTC vs.
Revision 1.611 by root, Tue Nov 20 14:54:17 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 3.4 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
25	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
26		65
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
		67
		68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		81
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		83
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	84	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		85
36	our %COMMAND = ();	86	our %COMMAND = ();
37	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
38		88
39	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
43		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	98	our @EVENT;
45	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
46		101
47	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	103
49	our $AIO_POLL_WATCHER;	104	our $DATADIR = datadir;
50	our $WRITE_RUNTIME_WATCHER;	105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	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;
52	our $NOW;	144	our $NOW;
53		145
54	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
55		147	our (%MAP, %MAP_LOADING ); # all maps
56	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;
58
59	our %PLAYER; # all users
60	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		149
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
70	binmode STDOUT;	166	binmode STDOUT;
71	binmode STDERR;	167	binmode STDERR;
72		168
73	# read virtual server time, if available	169	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
78	}	174	}
79		175
80	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
81	mkdir cf::localdir . "/" . cf::playerdir;	177
82	mkdir cf::localdir . "/" . cf::tmpdir;	178	mkdir $_
83	mkdir cf::localdir . "/" . cf::uniquedir;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
84	mkdir $RANDOM_MAPS;
85		180
86	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
87		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
88	#############################################################################	189	#############################################################################
89		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
90	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
91		203
92	=over 4	204	=over 4
93		205
94	=item $cf::UPTIME	206	=item $cf::UPTIME
95		207
96	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.
97		224
98	=item $cf::RUNTIME	225	=item $cf::RUNTIME
99		226
100	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
101	every server tick.	228	every server tick.
102		229
103	=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
104		233
105	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		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
108	=item $cf::NOW	245	=item $cf::LOAD
109		246
110	The time of the last (current) server tick.	247	The raw value load value from the last tick.
111
112	=item $cf::TICK
113
114	The interval between server ticks, in seconds.
115		248
116	=item %cf::CFG	249	=item %cf::CFG
117		250
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	252	from wherever your confdir points to.
120		253
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		255
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	256	These are functions that inhibit the current coroutine one tick.
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	257	cf::wait_for_tick_begin only returns directly I<after> the tick
125	processing has been done. Call C<< ->wait >> on them to maximise the	258	processing (and consequently, can only wake one thread per tick), while
126	window of cpu time available, or simply to synchronise to the server tick.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
127		289
128	=back	290	=back
129		291
130	=cut	292	=cut
131		293
132	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
133	*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 {
134	my $msg = join "", @_;	301	my $msg = join "", @_;
135	utf8::encode $msg;
136		302
137	$msg .= "\n"	303	$msg .= "\n"
138	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
139		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
140	LOG llevError, $msg;	308	LOG llevWarn, $msg;
141	};	309	};
142	}	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	};
143		324
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		332
151	# 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
152	# within the Safe compartment.	334	# within the Safe compartment.
153	for my $pkg (qw(	335	for my $pkg (qw(
154	cf::global cf::attachable	336	cf::global cf::attachable
155	cf::object cf::object::player	337	cf::object cf::object::player
156	cf::client cf::player	338	cf::client cf::player
157	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
158	cf::map cf::party cf::region	341	cf::party cf::region
159	)) {	342	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	344	}
163		345
164	$Event::DIED = sub {	346	$EV::DIED = sub {
165	warn "error in event callback: @_";	347	warn "error in event callback: $@";
166	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
167		356
168	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
169		358
170	=over 4	359	=over 4
171		360
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	380	$d
192	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
193	}	382	}
194		383
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
196		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
197	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
198		437
199	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
200		439
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
209		441
210	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
211		443
212	=cut	444	=cut
213		445
214	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
216	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	}
217	}	511	}
218		512
219	=item cf::lock_wait $string	513	=item cf::lock_wait $string
220		514
221	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
222		516
223	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
224		518
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
228	returned.	522	returned.
229		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
230	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
231	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
232		529
233	=cut	530	=item $locked = cf::lock_active $string
234		531
235	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
236		537
237	sub lock_wait($) {	538	sub lock_wait($) {
238	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	540	}
246		541
247	sub lock_acquire($) {	542	sub lock_acquire($) {
248	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
249		545
250	# wait, to be sure we are not locked	546	sub lock_active($) {
251	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	548	}
260		549
261	sub freeze_mainloop {	550	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
263		552
264	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	554	}
266	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
267	};	623	}
268	$WRITE_RUNTIME_WATCHER->stop;	624	};
269	$TICK_WATCHER->stop;	625
270	$guard	626	sub get_slot($;$$) {
		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	$sig->wait;
271	}	639	}
272		640
273	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
274		642
275	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		648
281	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
282		650
283	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
284		652
285	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
288		657
289	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
292	fast or be very important.	661	fast or be very important.
…		…
294	=cut	663	=cut
295		664
296	sub sync_job(&) {	665	sub sync_job(&) {
297	my ($job) = @_;	666	my ($job) = @_;
298		667
299	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
300	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
302		673
303	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	675
305	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
306		677
307	my $busy = 1;	678	my $busy = 1;
308	my @res;	679	my @res;
309		680
310	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	683	@res = eval { $job->() };
312	warn $@ if $@;	684	error $@ if $@;
313	undef $busy;	685	undef $busy;
314	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
315		687
316	while ($busy) {	688	while ($busy) {
317	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
318	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
319		699
320	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
321	} else {	701	} else {
322	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
323		703
…		…
343	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
344		724
345	$coro	725	$coro
346	}	726	}
347		727
348	sub write_runtime {	728	=item fork_call { }, @args
349	my $runtime = cf::localdir . "/runtime";
350		729
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
352	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.
353		734
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		736
358	aio_fsync $fh	737	sub post_fork {
359	and return;	738	reset_signals;
		739	}
360		740
361	close $fh	741	sub fork_call(&@) {
362	or return;	742	my ($cb, @args) = @_;
363		743
364	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
365	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
366		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
367	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 });
368	}	927	}
369		928
370	=back	929	=back
371		930
372	=cut	931	=cut
373		932
374	#############################################################################	933	#############################################################################
375		934
376	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
377		936
378	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
379	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")
380	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
381		940
382	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>
383	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
384	crossfire+).	943	Deliantra).
385		944
386	=over 4	945	=over 4
387		946
388	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
389		948
…		…
433	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
434		993
435	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
437		996
438	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
440		999
441	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
442		1001
443	=over 4	1002	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
553		1112
554	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		1117
559	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
561		1120
562	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
567		1126
568	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
569	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
570		1129
571	} elsif (ref $type) {	1130	} elsif (ref $type) {
572	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
573		1132
574	} else {	1133	} else {
575	shift @arg;	1134	shift @arg;
576	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
577	}	1136	}
578	}	1137	}
579	}	1138	}
580		1139
581	sub _object_attach {	1140	sub _object_attach {
…		…
591	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
592	}	1151	}
593		1152
594	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
595	} else {	1154	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
597	}	1156	}
598		1157
599	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
600	}	1159	}
601		1160
…		…
603	if (ref $_[0]) {	1162	if (ref $_[0]) {
604	_object_attach @_;	1163	_object_attach @_;
605	} else {	1164	} else {
606	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
607	}	1166	}
		1167	_recalc_want;
608	};	1168	};
609		1169
610	# all those should be optimised	1170	# all those should be optimised
611	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
616	reattach ($obj);	1176	reattach ($obj);
617	} else {	1177	} else {
618	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
619	}	1179	}
		1180	_recalc_want;
620	};	1181	};
621		1182
622	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
624		1185
…		…
639	";	1200	";
640	die if $@;	1201	die if $@;
641	}	1202	}
642		1203
643	our $override;	1204	our $override;
644	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?
645		1206
646	sub override {	1207	sub override {
647	$override = 1;	1208	$override = 1;
648	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
649	}	1210	}
650		1211
651	sub do_invoke {	1212	sub do_invoke {
652	my $event = shift;	1213	my $event = shift;
653	my $callbacks = shift;	1214	my $callbacks = shift;
654		1215
655	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
656		1217
657	local $override;	1218	local $override;
658		1219
659	for (@$callbacks) {	1220	for (@$callbacks) {
660	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
661		1222
662	if ($@) {	1223	if ($@) {
663	warn "$@";
664	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
665	override;	1225	override;
666	}	1226	}
667		1227
668	return 1 if $override;	1228	return 1 if $override;
669	}	1229	}
670		1230
671	0	1231	0
672	}	1232	}
673		1233
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1235
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1237
678	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
679		1239
680	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
681	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
682	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1243
684	=back	1244	=back
685		1245
686	=cut	1246	=cut
687		1247
688	#############################################################################	1248	#############################################################################
689	# 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, $ob2
		1291	}
690		1292
691	sub reattach {	1293	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1295	my ($obj) = @_;
694		1296
		1297	# no longer needed after getting rid of delete_package?
695	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
696		1299
697	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
698		1301
699	@$registry = ();	1302	@$registry = ();
700		1303
…		…
705	for (@$attach) {	1308	for (@$attach) {
706	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
707	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
708	}	1311	}
709	} else {	1312	} else {
710	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
711	}	1314	}
712	}	1315	}
713	}	1316	}
714		1317
715	cf::attachable->attach (	1318	cf::attachable->attach (
716	prio => -1000000,	1319	prio => -1000000,
717	on_instantiate => sub {	1320	on_instantiate => sub {
718	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
719		1322
720	$data = from_json $data;	1323	$data = decode_json $data;
721		1324
722	for (@$data) {	1325	for (@$data) {
723	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
724		1327
725	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1344	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
743		1346
744	sync_job {	1347	sync_job {
745	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
748		1353
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		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;
752	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
753	close $fh;	1361	aio_close $fh;
754		1362
755	if (@$objs) {	1363	if (@$objs) {
756	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) {
757	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($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;
760	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
761	close $fh;	1372	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
763	}	1374	}
764	} else {	1375	} else {
765	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
766	}	1377	}
767		1378
768	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
769	} else {	1383	} else {
770	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
771	}	1385	}
772	} else {	1386	} else {
773	aio_unlink $filename;	1387	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
775	}	1389	}
776	}	1390	};
777	}	1391	}
778		1392
779	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
781		1395
…		…
793	or return;	1407	or return;
794		1408
795	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
797	or return;	1411	or return;
		1412
798	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
799	}	1415	}
800		1416
		1417	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
803	return ($data, $av);	1422	($data, $av)
804	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
805		1430
806	#############################################################################	1431	#############################################################################
807	# command handling &c	1432	# command handling &c
808		1433
809	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
810		1435
811	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
812	$name.	1437	$name.
813		1438
814	=cut	1439	=cut
…		…
820	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
821		1446
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1448	}
824		1449
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
826		1451
827	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.
828		1457
829	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
830	called.
831		1459
832	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
833		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$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
834	sub register_extcmd {	1482	sub register_extcmd($$) {
835	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
836		1484
837	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
838	}	1486	}
839		1487
		1488	sub register_async_extcmd($$) {
		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} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
840	cf::player->attach (	1508	cf::player->attach (
841	on_command => sub {	1509	on_unknown_command => sub {
842	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
843		1511
844	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
845	or return;	1513	or return;
846		1514
…		…
851	cf::override;	1519	cf::override;
852	},	1520	},
853	on_extcmd => sub {	1521	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
855		1523
856	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1525
858	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
861	$pl->ext_reply ($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);
862	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
863	}	1547	}
		1548
864	} else {	1549	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1551	}
867		1552
868	cf::override;	1553	cf::override;
869	},	1554	},
870	);	1555	);
871		1556
		1557	# "readahead" all extensions
872	sub load_extension {	1558	sub cache_extensions {
873	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
874		1560
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
876	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
877	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}	1564	}
900	die $@;
901	}	1565	};
902		1566
903	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;
904	}	1579	}
905		1580
906	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
907	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1590	next unless -r $path;
909	eval {	1591
910	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 $active;
		1663	}
911	1	1664	}
912	} or warn "$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	}
913	}	1677	};
914	}	1678	}
915		1679
916	#############################################################################	1680	#############################################################################
917		1681
		1682	=back
		1683
918	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
919		1685
920	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
921		1687
922	=cut	1688	=cut
923		1689
924	package cf::player;	1690	package cf::player;
925		1691
…		…
927		1693
928	=head3 cf::player	1694	=head3 cf::player
929		1695
930	=over 4	1696	=over 4
931		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
932	=item cf::player::find $login	1712	=item cf::player::find $login
933		1713
934	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
935		1715
936	=cut	1716	=cut
937		1717
938	sub playerdir($) {	1718	sub playerdir($) {
939	cf::localdir	1719	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1721	}
945		1722
946	sub path($) {	1723	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1725
949	(playerdir $login) . "/$login.pl"	1726	(playerdir $login) . "/playerdata"
950	}	1727	}
951		1728
952	sub find_active($) {	1729	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1730	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1731	and $cf::PLAYER{$_[0]}->active
…		…
957		1734
958	sub exists($) {	1735	sub exists($) {
959	my ($login) = @_;	1736	my ($login) = @_;
960		1737
961	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1739	or !aio_stat path $login
963	}	1740	}
964		1741
965	sub find($) {	1742	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1744	my $login = $_[0];
968		1745
969	my $guard = cf::lock_acquire "user_find:$login";	1746	my $guard = cf::lock_acquire "user_find:$login";
970		1747
971	$cf::PLAYER{$_[0]} || do {	1748	$cf::PLAYER{$_[0]} || do {
972	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
973	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;
974	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
975	}	1765	}
976	}	1766	}
977	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($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	);
978		1781
979	sub save($) {	1782	sub save($) {
980	my ($pl) = @_;	1783	my ($pl) = @_;
981		1784
982	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
987	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
988		1791
989	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
991		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
992	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
993	Coro::cede;	1801	cf::cede_to_tick;
994	}	1802	}
995		1803
996	sub new($) {	1804	sub new($) {
997	my ($login) = @_;	1805	my ($login) = @_;
998		1806
…		…
1004	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1005		1813
1006	$self	1814	$self
1007	}	1815	}
1008		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
1009	=item $pl->quit_character	1827	=item $pl->quit_character
1010		1828
1011	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1013		1831
1014	=cut	1832	=cut
1015		1833
1016	sub quit_character {	1834	sub quit_character {
1017	my ($pl) = @_;	1835	my ($pl) = @_;
1018		1836
		1837	my $name = $pl->ob->name;
		1838
1019	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1020	$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
1021		1841
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1023	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1025	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1026		1850
1027	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1854	delete $cf::PLAYER{$pl->ob->name};
1031	$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
1032	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;
1033	}	1877	}
1034		1878
1035	=item cf::player::list_logins	1879	=item cf::player::list_logins
1036		1880
1037	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
1038	while and may block, so not sync_job-capable, ever.	1882	while and may block, so not sync_job-capable, ever.
1039		1883
1040	=cut	1884	=cut
1041		1885
1042	sub list_logins {	1886	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1887	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1888	or return [];
1045		1889
1046	my @logins;	1890	my @logins;
1047		1891
1048	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") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1052		1902
1053	utf8::decode $login;	1903	utf8::decode $login;
1054	push @logins, $login;	1904	push @logins, $login;
1055	}	1905	}
1056		1906
1057	\@logins	1907	\@logins
1058	}	1908	}
1059		1909
1060	=item $player->maps	1910	=item $player->maps
1061		1911
		1912	=item cf::player::maps $login
		1913
1062	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1063	player. May block.	1915	player. May block.
1064		1916
1065	=cut	1917	=cut
1066		1918
1067	sub maps($) {	1919	sub maps($) {
1068	my ($pl) = @_;	1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1923
1070	my $files = aio_readdir playerdir $pl	1924	my $files = aio_readdir playerdir $pl
1071	or return;	1925	or return;
1072		1926
1073	my @paths;	1927	my @paths;
…		…
1075	for (@$files) {	1929	for (@$files) {
1076	utf8::decode $_;	1930	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1931	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1932	next unless /^$PATH_SEP/o;
1079		1933
1080	s/\.map$//;	1934	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1935	}
1083		1936
1084	\@paths	1937	\@paths
1085	}	1938	}
1086		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1944	=item $player->ext_msg ($type, @msg)
1088		1945
1089	Sends an ext reply to the player.	1946	Sends an ext event to the client.
1090		1947
1091	=cut	1948	=cut
1092		1949
1093	sub ext_reply($$$%) {	1950	sub ext_msg($$@) {
1094	my ($self, $id, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1095		1952
1096	$msg{msgid} = $id;	1953	$self->ns->ext_msg ($type, @msg);
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1954	}
1100		1955
1101	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	}
1102		1986
1103	=back	1987	=back
1104
1105		1988
1106	=head3 cf::map	1989	=head3 cf::map
1107		1990
1108	=over 4	1991	=over 4
1109		1992
…		…
1121	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1123		2006
1124	sub generate_random_map {	2007	sub generate_random_map {
1125	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1126	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1127	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)
1140	}	2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
1141		2022
1142	sub register {	2023	sub register {
1143	my (undef, $regex) = @_;	2024	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	2025	my $pkg = caller;
1145		2026
1146	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		2028
1149	$EXT_MAP{$pkg} = qr<$regex>;	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	2030	}
1151		2031
1152	# also paths starting with '/'	2032	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1154		2034
1155	sub thawer_merge {	2035	sub thawer_merge {
1156	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1157		2037
1158	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1159	local $self->{path};	2039	local $self->{path};
1160	local $self->{load_path};	2040	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		2041
1164	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1165	}	2043	}
1166		2044
1167	sub normalise {	2045	sub normalise {
1168	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
		2047
		2048	$path = "$path"; # make sure it's a string
		2049
		2050	$path =~ s/\.map$//;
1169		2051
1170	# map plan:	2052	# map plan:
1171	#	2053	#
1172	# /! non-realised random map exit (special hack!)	2054	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	2055	# {... are special paths that are not being touched
…		…
1186	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1187	$path = "$base/$path";	2069	$path = "$base/$path";
1188	}	2070	}
1189		2071
1190	for ($path) {	2072	for ($path) {
1191	redo if s{//}{/};
1192	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1193	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1194	}	2075	}
1195		2076
1196	$path	2077	$path
…		…
1201		2082
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		2084
1204	$path = normalise $path, $base;	2085	$path = normalise $path, $base;
1205		2086
1206	for my $pkg (keys %EXT_MAP) {	2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	2089	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	2090	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1211	return $self;	2092	return $self;
1212	}	2093	}
1213	}	2094	}
1214		2095
1215	Carp::carp "unable to resolve path '$path'.";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1216	()	2097	()
1217	}	2098	}
1218		2099
		2100	# may re-bless or do other evil things
1219	sub init {	2101	sub init {
1220	my ($self) = @_;	2102	my ($self) = @_;
1221		2103
1222	$self	2104	$self
1223	}	2105	}
…		…
1235		2117
1236	# the original (read-only) location	2118	# the original (read-only) location
1237	sub load_path {	2119	sub load_path {
1238	my ($self) = @_;	2120	my ($self) = @_;
1239		2121
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	2122	"$MAPDIR/$self->{path}.map"
1241	}	2123	}
1242		2124
1243	# the temporary/swap location	2125	# the temporary/swap location
1244	sub save_path {	2126	sub save_path {
1245	my ($self) = @_;	2127	my ($self) = @_;
1246		2128
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	2130	"$TMPDIR/$path.map"
1249	}	2131	}
1250		2132
1251	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1252	sub uniq_path {	2134	sub uniq_path {
1253	my ($self) = @_;	2135	my ($self) = @_;
1254		2136
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2138	"$UNIQUEDIR/$path"
1257	}	2139	}
1258		2140
1259	# and all this just because we cannot iterate over	2141	sub decay_objects {
1260	# all maps in C++...
1261	sub change_all_map_light {
1262	my ($change) = @_;	2142	my ($self) = @_;
1263		2143
1264	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1265	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1266	}	2147	}
1267		2148
1268	sub unlink_save {	2149	sub unlink_save {
1269	my ($self) = @_;	2150	my ($self) = @_;
1270		2151
…		…
1275		2156
1276	sub load_header_from($) {	2157	sub load_header_from($) {
1277	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1278		2159
1279	utf8::encode $path;	2160	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1281	or return;	2162	or return;
1282		2163
1283	$self->_load_header ($path)	2164	$self->_load_header ($f)
1284	or return;	2165	or return;
1285		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1286	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1287		2171
1288	1	2172	1
1289	}	2173	}
1290		2174
		2175	# used to laod the header of an original map
1291	sub load_orig {	2176	sub load_header_orig {
1292	my ($self) = @_;	2177	my ($self) = @_;
1293		2178
1294	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1295	}	2180	}
1296		2181
		2182	# used to laod the header of an instantiated map
1297	sub load_temp {	2183	sub load_header_temp {
1298	my ($self) = @_;	2184	my ($self) = @_;
1299		2185
1300	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
1301	}	2208	}
1302		2209
1303	sub load_header {	2210	sub load_header {
1304	my ($self) = @_;	2211	my ($self) = @_;
1305		2212
1306	if ($self->load_temp) {	2213	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	2214	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	2215	} else {
1313	$self->load_orig	2216	$self->load_header_orig
1314	or return;	2217	or return;
1315		2218	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	2219	}
		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 $self->default_region;
1321		2226
1322	1	2227	1
1323	}	2228	}
1324		2229
1325	sub find;	2230	sub find;
1326	sub find {	2231	sub find {
1327	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1328		2233
		2234	cf::cede_to_tick;
		2235
1329	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1330		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1331	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1332		2240
1333	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1334	my $guard = cf::lock_acquire "map_find:$path";
1335	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1336	or return;	2243	or return;
1337		2244
1338	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1339		2246
1340	$map->load_header	2247	$map->load_header
1341	or return;	2248	or return;
1342		2249
1343	if ($map->should_reset) {	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1345	$map->reset;	2255	$map->reset;
1346	undef $guard;
1347	$map = find $path	2256	return find $path;
1348	or return;
1349	}	2257	}
1350		2258
1351	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1352	}	2260	}
1353	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1354		2265
1355	sub load {	2266	sub load {
1356	my ($self) = @_;	2267	my ($self) = @_;
1357		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
1358	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1359	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1360		2275
1361	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1362		2278
1363	$self->in_memory (cf::MAP_LOADING);
1364
1365	$self->alloc;	2279	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)	2280
		2281	$self->pre_load;
		2282	cf::cede_to_tick;
		2283
		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)
1367	or return;	2288	or return;
1368		2289
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1370	if delete $self->{load_original};	2291	if delete $self->{load_original};
1371		2292
1372	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;	2294	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1375	$self->clear_unique_items;	2297	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1377	}	2302	}
1378	}
1379		2303
1380	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
1381		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1382	# now do the right thing for maps	2313	# now do the right thing for maps
1383	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;
1390	$self->set_darkness_map;
1391	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	2316	unless $self->difficulty;
1393	Coro::cede;	2317	cf::cede_to_tick;
1394	$self->activate;	2318
		2319	unless ($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);
		2329	}
		2330
		2331	$self->post_load;
		2332
1395	}	2333	1
1396
1397	$self->in_memory (cf::MAP_IN_MEMORY);
1398	}	2334	}
1399		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1400	sub customise_for {	2339	sub customise_for {
1401	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1402		2341
1403	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	2343	if $self->per_player;
1405		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1406	$self	2348	$self
1407	}
1408
1409	# find and load all maps in the 3x3 area around a map
1410	sub load_diag {
1411	my ($map) = @_;
1412
1413	my @diag; # diagonal neighbours
1414
1415	for (0 .. 3) {
1416	my $neigh = $map->tile_path ($_)
1417	or next;
1418	$neigh = find $neigh, $map
1419	or next;
1420	$neigh->load;
1421
1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1424	}
1425
1426	for (@diag) {
1427	my $neigh = find @$_
1428	or next;
1429	$neigh->load;
1430	}
1431	}	2349	}
1432		2350
1433	sub find_sync {	2351	sub find_sync {
1434	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1435		2353
1436	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, $origin
1437	}	2359	}
1438		2360
1439	sub do_load_sync {	2361	sub do_load_sync {
1440	my ($map) = @_;	2362	my ($map) = @_;
1441		2363
1442	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;
1443	}	2369	}
1444		2370
1445	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	2372	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		2373
1459	sub find_async {	2374	sub find_async {
1460	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1461		2376
1462	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1463		2378
1464	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
		2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
		2388	while (%MAP_PREFETCH) {
		2389	while (my ($k, $v) = each %MAP_PREFETCH) {
		2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
		2394	delete $MAP_PREFETCH{$k};
		2395	}
		2396	}
		2397	undef $MAP_PREFETCHER;
1466	}	2398	};
1467
1468	$MAP_PREFETCH{$path} = 0;
1469	$MAP_PREFETCHER->ready;	2399	$MAP_PREFETCHER->prio (6);
1470		2400
1471	()	2401	()
1472	}	2402	}
1473		2403
		2404	# common code, used by both ->save and ->swapout
1474	sub save {	2405	sub _save {
1475	my ($self) = @_;	2406	my ($self) = @_;
1476
1477	my $lock = cf::lock_acquire "map_data:" . $self->path;
1478		2407
1479	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1480		2409
1481	return unless $self->dirty;	2410	return unless $self->dirty;
1482		2411
…		…
1488	return if $self->{deny_save};	2417	return if $self->{deny_save};
1489		2418
1490	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1491		2420
1492	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1493	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1494	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1495		2427
1496	if ($uniq) {	2428	if ($uniq) {
1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1498	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1499	} else {	2431	} else {
1500	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1501	}	2433	}
1502	}	2434	}
1503		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1504	sub swap_out {	2444	sub swap_out {
1505	my ($self) = @_;	2445	my ($self) = @_;
1506		2446
1507	# save first because save cedes
1508	$self->save;
1509
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1512	return if $self->players;	2451	return if $self->players;
1513	return if $self->in_memory != cf::MAP_IN_MEMORY;
1514	return if $self->{deny_save};
1515		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
1516	$self->clear;	2462	$self->clear;
1517	$self->in_memory (cf::MAP_SWAPPED);
1518	}	2463	}
1519		2464
1520	sub reset_at {	2465	sub reset_at {
1521	my ($self) = @_;	2466	my ($self) = @_;
1522		2467
1523	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1526		2470
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		2473
…		…
1540	my ($self) = @_;	2484	my ($self) = @_;
1541		2485
1542	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2487
1544	return if $self->players;	2488	return if $self->players;
1545	return if $self->isa ("ext::map_per_player");#d#
1546		2489
1547	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
		2491
		2492	$self->state (cf::MAP_SWAPPED);
		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
1548		2501
1549	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1550		2503
1551	$self->in_memory (cf::MAP_SWAPPED);	2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1552	$self->clear;	2506	$self->clear;
1553
1554	$_->clear_links_to ($self) for values %cf::MAP;
1555		2507
1556	$self->unlink_save;	2508	$self->unlink_save;
1557	$self->destroy;	2509	$self->destroy;
1558	}	2510	}
1559		2511
1560	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1561		2513
1562	sub nuke {	2514	sub nuke {
1563	my ($self) = @_;	2515	my ($self) = @_;
1564		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1565	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1566		2521
1567	$self->unlink_save;	2522	$self->unlink_save;
1568		2523
1569	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1570	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1573	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1574		2529
1575	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1576		2532
1577	$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	]
1578	}	2570	}
1579		2571
1580	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1581		2573
1582	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1583	instantiated unique items. May block.	2575	instantiated unique items. May block.
1584		2576
1585	=cut	2577	=cut
1586		2578
1587	sub unique_maps() {	2579	sub unique_maps() {
1588	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2580	[
1589	or return;	2581	map {
1590
1591	my @paths;
1592
1593	for (@$files) {
1594	utf8::decode $_;	2582	utf8::decode $_;
1595	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1596	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
1597		2590
		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) {
1598	s/\.map$//;	2612	s/\.map$// or next;
1599	push @paths, $_;	2613	utf8::decode $_;
1600	}	2614	push @maps, "$dir/$_";
		2615	}
1601		2616
1602	\@paths	2617	push @dirs, map "$dir/$_", @$dirs;
1603	}	2618	}
1604		2619
1605	package cf;	2620	\@maps
		2621	}
1606		2622
1607	=back	2623	=back
1608		2624
1609	=head3 cf::object	2625	=head3 cf::object
1610		2626
…		…
1614		2630
1615	=over 4	2631	=over 4
1616		2632
1617	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1618		2634
1619	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.
1620		2637
1621	=cut	2638	=cut
1622		2639
1623	sub inv_recursive_;	2640	sub inv_recursive_;
1624	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1627		2644
1628	sub inv_recursive {	2645	sub inv_recursive {
1629	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1630	}	2647	}
1631		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
1632	package cf;	2677	package cf;
1633		2678
1634	=back	2679	=back
1635		2680
1636	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1642	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>
1643	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
1644	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1645		2690
1646	=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	};
1647		2706
1648	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1649	# with dialog boxes.	2708	# with dialog boxes.
1650	#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
1651	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1653		2712
1654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1655		2714
1656	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1658	} 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 {
1659	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1660	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1661	}	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 (@_);
1662	}	2740	}
1663		2741
1664	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1665		2743
1666	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1679		2757
1680	=item $player_object->enter_link	2758	=item $player_object->enter_link
1681		2759
1682	Freezes the player and moves him/her to a special map (C<{link}>).	2760	Freezes the player and moves him/her to a special map (C<{link}>).
1683		2761
1684	The player should be reasonably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1685	I<MUST> call C<leave_link> as soon as possible, though.	2763	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2764	though, as the player cannot control the character while it is on the link
		2765	map.
1686		2766
1687	Will never block.	2767	Will never block.
1688		2768
1689	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1690		2770
…		…
1698	=cut	2778	=cut
1699		2779
1700	sub link_map {	2780	sub link_map {
1701	unless ($LINK_MAP) {	2781	unless ($LINK_MAP) {
1702	$LINK_MAP = cf::map::find "{link}"	2782	$LINK_MAP = cf::map::find "{link}"
1703	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2783	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704	$LINK_MAP->load;	2784	$LINK_MAP->load;
1705	}	2785	}
1706		2786
1707	$LINK_MAP	2787	$LINK_MAP
1708	}	2788	}
…		…
1710	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1711	my ($self) = @_;	2791	my ($self) = @_;
1712		2792
1713	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1714		2794
		2795	++$self->{_link_recursion};
		2796
1715	return if UNIVERSAL::isa $self->map, "ext::map_link";	2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1716		2798
1717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1719		2801
1720	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1721	}	2803	}
1722		2804
1723	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1724	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1725		2809
1726	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1727		2811
1728	unless ($map) {	2812	unless ($map) {
1729	# restore original map position	2813	# restore original map position
…		…
1740	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1741	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1742		2826
1743	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1744	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1745	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1746		2830
1747	$map->load;	2831	$map->load;
1748	$map->load_diag;
1749		2832
1750	return unless $self->contr->active;	2833	return unless $self->contr->active;
		2834
		2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2836	if ($self->enter_map ($map, $x, $y)) {
		2837	# entering was successful
		2838	delete $self->{_link_recursion};
		2839	# only activate afterwards, to support waiting in hooks
1751	$self->activate_recursive;	2840	$self->activate_recursive;
1752	$self->enter_map ($map, $x, $y);
1753	}
1754
1755	cf::player->attach (
1756	on_logout => sub {
1757	my ($pl) = @_;
1758
1759	# abort map switching before logout
1760	if ($pl->ob->{_link_pos}) {
1761	cf::sync_job {
1762	$pl->ob->leave_link
1763	};
1764	}
1765	},	2841	}
1766	on_login => sub {
1767	my ($pl) = @_;
1768		2842
1769	# try to abort aborted map switching on player login :)	2843	}
1770	# should happen only on crashes
1771	if ($pl->ob->{_link_pos}) {
1772	$pl->ob->enter_link;
1773	(async {
1774	# we need this sleep as the login has a concurrent enter_exit running
1775	# and this sleep increases chances of the player not ending up in scorn
1776	$pl->ob->reply (undef,
1777	"There was an internal problem at your last logout, "
1778	. "the server will try to bring you to your intended destination in a second.",
1779	cf::NDI_RED);
1780	Coro::Timer::sleep 1;
1781	$pl->ob->leave_link;
1782	})->prio (2);
1783	}
1784	},
1785	);
1786		2844
1787	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1788		2846
		2847	Moves the player to the given map-path and coordinates by first freezing
		2848	her, loading and preparing them map, calling the provided $check callback
		2849	that has to return the map if sucecssful, and then unfreezes the player on
		2850	the new (success) or old (failed) map position. In either case, $done will
		2851	be called at the end of this process.
		2852
		2853	Note that $check will be called with a potentially non-loaded map, so if
		2854	it needs a loaded map it has to call C<< ->load >>.
		2855
1789	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1790		2859
1791	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1792	my ($self, $path, $x, $y) = @_;	2861	my ($self, $path, $x, $y, $check, $done) = @_;
		2862
		2863	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2864	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2865	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2866	($path, $x, $y) = @$EMERGENCY_POSITION;
		2867	}
		2868
		2869	# do generation counting so two concurrent goto's will be executed in-order
		2870	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1793		2871
1794	$self->enter_link;	2872	$self->enter_link;
1795		2873
1796	(async {	2874	(async {
1797	my $map = cf::map::find $path;	2875	$Coro::current->{desc} = "player::goto $path $x $y";
		2876
		2877	# *tag paths override both path and x|y
		2878	if ($path =~ /^\*(.*)$/) {
		2879	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2880	my $ob = $obs[rand @obs];
		2881
		2882	# see if we actually can go there
		2883	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2884	$ob = $obs[rand @obs];
		2885	} else {
		2886	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888	# else put us there anyways for now #d#
		2889
		2890	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2891	} else {
		2892	($path, $x, $y) = (undef, undef, undef);
		2893	}
		2894	}
		2895
		2896	my $map = eval {
		2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
1798	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
1799		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
1800	# warn "entering ", $map->path, " at ($x, $y)\n"	2902	} else {
1801	# if $map;
1802
1803	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
1804		2905
		2906	$map
		2907	};
		2908
		2909	if ($@) {
		2910	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2911	LOG llevError | logBacktrace, Carp::longmess $@;
		2912	}
		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1805	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1806	})->prio (1);	2920	})->prio (1);
1807	}	2921	}
1808		2922
1809	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1810		2924
…		…
1812		2926
1813	sub parse_random_map_params {	2927	sub parse_random_map_params {
1814	my ($spec) = @_;	2928	my ($spec) = @_;
1815		2929
1816	my $rmp = { # defaults	2930	my $rmp = { # defaults
1817	xsize => -1,	2931	xsize => (cf::rndm 15, 40),
1818	ysize => -1,	2932	ysize => (cf::rndm 15, 40),
		2933	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2934	#layout => string,
1819	};	2935	};
1820		2936
1821	for (split /\n/, $spec) {	2937	for (split /\n/, $spec) {
1822	my ($k, $v) = split /\s+/, $_, 2;	2938	my ($k, $v) = split /\s+/, $_, 2;
1823		2939
…		…
1827	$rmp	2943	$rmp
1828	}	2944	}
1829		2945
1830	sub prepare_random_map {	2946	sub prepare_random_map {
1831	my ($exit) = @_;	2947	my ($exit) = @_;
1832
1833	my $guard = cf::lock_acquire "exit_prepare:$exit";
1834		2948
1835	# all this does is basically replace the /! path by	2949	# all this does is basically replace the /! path by
1836	# a new random map path (?random/...) with a seed	2950	# a new random map path (?random/...) with a seed
1837	# that depends on the exit object	2951	# that depends on the exit object
1838		2952
1839	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
1840		2954
1841	if ($exit->map) {	2955	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	2956	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1846	}	2962	}
1847		2963
1848	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1849		2965
1850	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1851	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
1852	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2968	my $meta = "$RANDOMDIR/$md5.meta";
1853		2969
1854	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1855	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
1856	undef $fh;	2972	undef $fh;
1857	aio_rename "$meta~", $meta;	2973	aio_rename "$meta~", $meta;
1858		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1859	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
1860	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
1861	}	2981	}
1862	}	2982	}
1863		2983
1864	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
1865	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
…		…
1867	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
1868		2988
1869	$self->enter_link;	2989	$self->enter_link;
1870		2990
1871	(async {	2991	(async {
1872	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
1873	unless (eval {	2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
		2996
		2997	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2998	my $x = $exit->stats->hp;
		2999	my $y = $exit->stats->sp;
		3000
		3001	# special map handling
		3002	my $slaying = $exit->slaying;
		3003
		3004	# special map handling
		3005	if ($slaying eq "/!") {
		3006	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3007
1874	prepare_random_map $exit	3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
1875	if $exit->slaying eq "/!";	3011	$map = $exit->slaying;
1876		3012
1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	3013	} elsif ($slaying eq '!up') {
1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
1879		3017
		3018	} elsif ($slaying eq '!down') {
		3019	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3020	$x = $exit->x;
		3021	$y = $exit->y;
		3022	}
		3023
		3024	$self->goto ($map, $x, $y);
		3025
		3026	# if exit is damned, update players death & WoR home-position
		3027	$self->contr->savebed ($map, $x, $y)
		3028	if $exit->flag (cf::FLAG_DAMNED);
		3029
1880	1;	3030	1
1881	}) {	3031	}) {
1882	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
1883	. "I'll try to bring you back to the map you were before. "	3033	. "I'll try to bring you back to the map you were before. "
1884	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
1885	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
1886		3036
1887	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
1888	$self->leave_link;	3038	$self->leave_link;
1889	}	3039	}
1890	})->prio (1);	3040	})->prio (1);
1891	}	3041	}
1892		3042
1893	=head3 cf::client	3043	=head3 cf::client
1894		3044
1895	=over 4	3045	=over 4
1896		3046
1897	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1898		3048
1899	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1900	should not be used under normal circumstances.	3050	them as required.
1901		3051
1902	=cut	3052	=cut
1903		3053
		3054	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3055
		3056	sub cf::client::send_big_packet {
		3057	my ($self, $pkt) = @_;
		3058
		3059	# try lzf for large packets
		3060	$pkt = "lzf " . Compress::LZF::compress $pkt
		3061	if 1024 <= length $pkt and $self->{can_lzf};
		3062
		3063	# split very large packets
		3064	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3065	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3066	$pkt = "frag";
		3067	}
		3068
		3069	$self->send_packet ($pkt);
		3070	}
		3071
		3072	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3073
		3074	Send a msg packet to the client, formatting the msg for the client if
		3075	necessary. C<$type> should be a string identifying the type of the
		3076	message, with C<log> being the default. If C<$color> is negative, suppress
		3077	the message unless the client supports the msg packet.
		3078
		3079	=cut
		3080
		3081	# non-persistent channels (usually the info channel)
		3082	our %CHANNEL = (
		3083	"c/motd" => {
		3084	id => "infobox",
		3085	title => "MOTD",
		3086	reply => undef,
		3087	tooltip => "The message of the day",
		3088	},
		3089	"c/identify" => {
		3090	id => "infobox",
		3091	title => "Identify",
		3092	reply => undef,
		3093	tooltip => "Items recently identified",
		3094	},
		3095	"c/examine" => {
		3096	id => "infobox",
		3097	title => "Examine",
		3098	reply => undef,
		3099	tooltip => "Signs and other items you examined",
		3100	},
		3101	"c/shopinfo" => {
		3102	id => "infobox",
		3103	title => "Shop Info",
		3104	reply => undef,
		3105	tooltip => "What your bargaining skill tells you about the shop",
		3106	},
		3107	"c/book" => {
		3108	id => "infobox",
		3109	title => "Book",
		3110	reply => undef,
		3111	tooltip => "The contents of a note or book",
		3112	},
		3113	"c/lookat" => {
		3114	id => "infobox",
		3115	title => "Look",
		3116	reply => undef,
		3117	tooltip => "What you saw there",
		3118	},
		3119	"c/who" => {
		3120	id => "infobox",
		3121	title => "Players",
		3122	reply => undef,
		3123	tooltip => "Shows players who are currently online",
		3124	},
		3125	"c/body" => {
		3126	id => "infobox",
		3127	title => "Body Parts",
		3128	reply => undef,
		3129	tooltip => "Shows which body parts you posess and are available",
		3130	},
		3131	"c/statistics" => {
		3132	id => "infobox",
		3133	title => "Statistics",
		3134	reply => undef,
		3135	tooltip => "Shows your primary statistics",
		3136	},
		3137	"c/skills" => {
		3138	id => "infobox",
		3139	title => "Skills",
		3140	reply => undef,
		3141	tooltip => "Shows your experience per skill and item power",
		3142	},
		3143	"c/shopitems" => {
		3144	id => "infobox",
		3145	title => "Shop Items",
		3146	reply => undef,
		3147	tooltip => "Shows the items currently for sale in this shop",
		3148	},
		3149	"c/resistances" => {
		3150	id => "infobox",
		3151	title => "Resistances",
		3152	reply => undef,
		3153	tooltip => "Shows your resistances",
		3154	},
		3155	"c/pets" => {
		3156	id => "infobox",
		3157	title => "Pets",
		3158	reply => undef,
		3159	tooltip => "Shows information abotu your pets/a specific pet",
		3160	},
		3161	"c/perceiveself" => {
		3162	id => "infobox",
		3163	title => "Perceive Self",
		3164	reply => undef,
		3165	tooltip => "You gained detailed knowledge about yourself",
		3166	},
		3167	"c/uptime" => {
		3168	id => "infobox",
		3169	title => "Uptime",
		3170	reply => undef,
		3171	tooltip => "How long the server has been running since last restart",
		3172	},
		3173	"c/mapinfo" => {
		3174	id => "infobox",
		3175	title => "Map Info",
		3176	reply => undef,
		3177	tooltip => "Information related to the maps",
		3178	},
		3179	"c/party" => {
		3180	id => "party",
		3181	title => "Party",
		3182	reply => "gsay ",
		3183	tooltip => "Messages and chat related to your party",
		3184	},
		3185	"c/death" => {
		3186	id => "death",
		3187	title => "Death",
		3188	reply => undef,
		3189	tooltip => "Reason for and more info about your most recent death",
		3190	},
		3191	"c/fatal" => {
		3192	id => "fatal",
		3193	title => "Fatal Error",
		3194	reply => undef,
		3195	tooltip => "Reason for the server disconnect",
		3196	},
		3197	"c/say" => $SAY_CHANNEL,
		3198	"c/chat" => $CHAT_CHANNEL,
		3199	);
		3200
1904	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($self, $channel, $msg, $color, @extra) = @_;
		3203
		3204	$msg = $self->pl->expand_cfpod ($msg)
		3205	unless $color & cf::NDI_VERBATIM;
		3206
		3207	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3208
		3209	# check predefined channels, for the benefit of C
		3210	if ($CHANNEL{$channel}) {
		3211	$channel = $CHANNEL{$channel};
		3212
		3213	$self->ext_msg (channel_info => $channel);
		3214	$channel = $channel->{id};
		3215
		3216	} elsif (ref $channel) {
		3217	# send meta info to client, if not yet sent
		3218	unless (exists $self->{channel}{$channel->{id}}) {
		3219	$self->{channel}{$channel->{id}} = $channel;
		3220	$self->ext_msg (channel_info => $channel);
		3221	}
		3222
		3223	$channel = $channel->{id};
		3224	}
		3225
		3226	return unless @extra || length $msg;
		3227
		3228	# default colour, mask it out
		3229	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3230	if $color & cf::NDI_DEF;
		3231
		3232	my $pkt = "msg "
		3233	. $self->{json_coder}->encode (
		3234	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3235	);
		3236
		3237	$self->send_big_packet ($pkt);
		3238	}
		3239
		3240	=item $client->ext_msg ($type, @msg)
		3241
		3242	Sends an ext event to the client.
		3243
		3244	=cut
		3245
		3246	sub cf::client::ext_msg($$@) {
1905	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1906		3248
1907	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1908	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1909	}	3250	}
1910
1911		3251
1912	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1913		3253
1914	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3255	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3256	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1917		3257
1918	Queries can fail, so check the return code. Or don't, as queries will become	3258	Queries can fail, so check the return code. Or don't, as queries will
1919	reliable at some point in the future.	3259	become reliable at some point in the future.
1920		3260
1921	=cut	3261	=cut
1922		3262
1923	sub cf::client::query {	3263	sub cf::client::query {
1924	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1932	utf8::encode $text;	3272	utf8::encode $text;
1933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1934		3274
1935	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
1936	if @{ $self->{query_queue} } == 1;	3276	if @{ $self->{query_queue} } == 1;
		3277
		3278	1
		3279	}
		3280
		3281	=item $client->update_command_faces
		3282
		3283	=cut
		3284
		3285	our %COMMAND_FACE;
		3286
		3287	sub cf::client::update_command_faces {
		3288	my ($self) = @_;
		3289
		3290	my @faces = grep $_,
		3291	$COMMAND_FACE{standard},
		3292	$COMMAND_FACE{emote},
		3293	$COMMAND_FACE{skill},
		3294	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3295	;
		3296
		3297	$self->send_face ($_)
		3298	for @faces;
		3299	$self->flush_fx;
		3300
		3301	$self->ext_msg (command_list => @faces);
		3302	}
		3303
		3304	=item cf::client::set_command_face $type, $commands
		3305
		3306	=cut
		3307
		3308	sub cf::client::set_command_face {
		3309	my ($type, $list) = @_;
		3310
		3311	my $idx = &cf::face::set ( #d# ugly forward reference
		3312	"command_list/$type" => cf::FT_RSRC,
		3313	JSON::XS->new->utf8->encode ([ sort @$list ])
		3314	);
		3315
		3316	$COMMAND_FACE{$type} = $idx;
1937	}	3317	}
1938		3318
1939	cf::client->attach (	3319	cf::client->attach (
		3320	on_connect => sub {
		3321	my ($ns) = @_;
		3322
		3323	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3324	},
1940	on_reply => sub {	3325	on_reply => sub {
1941	my ($ns, $msg) = @_;	3326	my ($ns, $msg) = @_;
1942		3327
1943	# this weird shuffling is so that direct followup queries	3328	# this weird shuffling is so that direct followup queries
1944	# get handled first	3329	# get handled first
1945	my $queue = delete $ns->{query_queue}	3330	my $queue = delete $ns->{query_queue}
1946	or return; # be conservative, not sure how that can happen, but we saw a crash here	3331	or return; # be conservative, not sure how that can happen, but we saw a crash here
1947		3332
1948	(shift @$queue)->[1]->($msg);	3333	(shift @$queue)->[1]->($msg);
		3334	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949		3335
1950	push @{ $ns->{query_queue} }, @$queue;	3336	push @{ $ns->{query_queue} }, @$queue;
1951		3337
1952	if (@{ $ns->{query_queue} } == @$queue) {	3338	if (@{ $ns->{query_queue} } == @$queue) {
1953	if (@$queue) {	3339	if (@$queue) {
…		…
1955	} else {	3341	} else {
1956	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3342	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1957	}	3343	}
1958	}	3344	}
1959	},	3345	},
		3346	on_exticmd => sub {
		3347	my ($ns, $buf) = @_;
		3348
		3349	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3350
		3351	if (ref $msg) {
		3352	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3353
		3354	if (my $cb = $EXTIACMD{$type}) {
		3355	$cb->(
		3356	$ns,
		3357	sub {
		3358	$ns->ext_msg ("reply-$reply", @_)
		3359	if $reply;
		3360	},
		3361	@payload
		3362	);
		3363	} else {
		3364	my @reply;
		3365
		3366	if (my $cb = $EXTICMD{$type}) {
		3367	@reply = $cb->($ns, @payload);
		3368	}
		3369
		3370	$ns->ext_msg ("reply-$reply", @reply)
		3371	if $reply;
		3372	}
		3373	} else {
		3374	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3375	}
		3376
		3377	cf::override;
		3378	},
1960	);	3379	);
1961		3380
1962	=item $client->async (\&cb)	3381	=item $client->async (\&cb)
1963		3382
1964	Create a new coroutine, running the specified callback. The coroutine will	3383	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980		3399
1981	$coro	3400	$coro
1982	}	3401	}
1983		3402
1984	cf::client->attach (	3403	cf::client->attach (
1985	on_destroy => sub {	3404	on_client_destroy => sub {
1986	my ($ns) = @_;	3405	my ($ns) = @_;
1987		3406
1988	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3407	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1989	},	3408	},
1990	);	3409	);
…		…
2005	our $safe = new Safe "safe";	3424	our $safe = new Safe "safe";
2006	our $safe_hole = new Safe::Hole;	3425	our $safe_hole = new Safe::Hole;
2007		3426
2008	$SIG{FPE} = 'IGNORE';	3427	$SIG{FPE} = 'IGNORE';
2009		3428
2010	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3429	$safe->permit_only (Opcode::opset qw(
		3430	:base_core :base_mem :base_orig :base_math :base_loop
		3431	grepstart grepwhile mapstart mapwhile
		3432	sort time
		3433	));
2011		3434
2012	# here we export the classes and methods available to script code	3435	# here we export the classes and methods available to script code
2013		3436
2014	=pod	3437	=pod
2015		3438
2016	The following fucntions and emthods are available within a safe environment:	3439	The following functions and methods are available within a safe environment:
2017		3440
2018	cf::object contr pay_amount pay_player map	3441	cf::object
		3442	contr pay_amount pay_player map x y force_find force_add destroy
		3443	insert remove name archname title slaying race decrease split
		3444	value
		3445
2019	cf::object::player player	3446	cf::object::player
2020	cf::player peaceful	3447	player
2021	cf::map trigger	3448
		3449	cf::player
		3450	peaceful
		3451
		3452	cf::map
		3453	trigger
2022		3454
2023	=cut	3455	=cut
2024		3456
2025	for (	3457	for (
2026	["cf::object" => qw(contr pay_amount pay_player map)],	3458	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3459	insert remove inv nrof name archname title slaying race
		3460	decrease split destroy change_exp value msg lore send_msg)],
2027	["cf::object::player" => qw(player)],	3461	["cf::object::player" => qw(player)],
2028	["cf::player" => qw(peaceful)],	3462	["cf::player" => qw(peaceful send_msg)],
2029	["cf::map" => qw(trigger)],	3463	["cf::map" => qw(trigger)],
2030	) {	3464	) {
2031	no strict 'refs';
2032	my ($pkg, @funs) = @$_;	3465	my ($pkg, @funs) = @$_;
2033	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3466	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2034	for @funs;	3467	for @funs;
2035	}	3468	}
2036		3469
…		…
2051		3484
2052	my $qcode = $code;	3485	my $qcode = $code;
2053	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3486	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2054	$qcode =~ s/\n/\\n/g;	3487	$qcode =~ s/\n/\\n/g;
2055		3488
		3489	%vars = (_dummy => 0) unless %vars;
		3490
		3491	my @res;
2056	local $_;	3492	local $_;
2057	local @safe::cf::_safe_eval_args = values %vars;
2058		3493
2059	my $eval =	3494	my $eval =
2060	"do {\n"	3495	"do {\n"
2061	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3496	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2062	. "#line 0 \"{$qcode}\"\n"	3497	. "#line 0 \"{$qcode}\"\n"
2063	. $code	3498	. $code
2064	. "\n}"	3499	. "\n}"
2065	;	3500	;
2066		3501
		3502	if ($CFG{safe_eval}) {
2067	sub_generation_inc;	3503	sub_generation_inc;
		3504	local @safe::cf::_safe_eval_args = values %vars;
2068	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3505	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2069	sub_generation_inc;	3506	sub_generation_inc;
		3507	} else {
		3508	local @cf::_safe_eval_args = values %vars;
		3509	@res = wantarray ? eval eval : scalar eval $eval;
		3510	}
2070		3511
2071	if ($@) {	3512	if ($@) {
2072	warn "$@";	3513	warn "$@",
2073	warn "while executing safe code '$code'\n";	3514	"while executing safe code '$code'\n",
2074	warn "with arguments " . (join " ", %vars) . "\n";	3515	"with arguments " . (join " ", %vars) . "\n";
2075	}	3516	}
2076		3517
2077	wantarray ? @res : $res[0]	3518	wantarray ? @res : $res[0]
2078	}	3519	}
2079		3520
…		…
2093	=cut	3534	=cut
2094		3535
2095	sub register_script_function {	3536	sub register_script_function {
2096	my ($fun, $cb) = @_;	3537	my ($fun, $cb) = @_;
2097		3538
2098	no strict 'refs';	3539	$fun = "safe::$fun" if $CFG{safe_eval};
2099	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3540	*$fun = $safe_hole->wrap ($cb);
2100	}	3541	}
2101		3542
2102	=back	3543	=back
2103		3544
2104	=cut	3545	=cut
2105		3546
2106	#############################################################################	3547	#############################################################################
2107		3548	# the server's init and main functions
2108	=head2 EXTENSION DATABASE SUPPORT
2109
2110	Crossfire maintains a very simple database for extension use. It can
2111	currently store anything that can be serialised using Storable, which
2112	excludes objects.
2113
2114	The parameter C<$family> should best start with the name of the extension
2115	using it, it should be unique.
2116
2117	=over 4
2118
2119	=item $hashref = cf::db_get $family
2120
2121	Return a hashref for use by the extension C<$family>, which can be
2122	modified. After modifications, you have to call C<cf::db_dirty> or
2123	C<cf::db_sync>.
2124
2125	=item $value = cf::db_get $family => $key
2126
2127	Returns a single value from the database
2128
2129	=item cf::db_put $family => $hashref
2130
2131	Stores the given family hashref into the database. Updates are delayed, if
2132	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2133
2134	=item cf::db_put $family => $key => $value
2135
2136	Stores the given C<$value> in the family hash. Updates are delayed, if you
2137	want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139	=item cf::db_dirty
2140
2141	Marks the database as dirty, to be updated at a later time.
2142
2143	=item cf::db_sync
2144
2145	Immediately write the database to disk I<if it is dirty>.
2146
2147	=cut
2148
2149	our $DB;
2150		3549
2151	{	3550	{
2152	my $path = cf::localdir . "/database.pst";	3551	package cf::face;
2153		3552
2154	sub db_load() {	3553	our %HASH; # hash => idx
2155	$DB = stat $path ? Storable::retrieve $path : { };	3554	our @DATA; # dynamically-created facedata, only faceste 0 used
2156	}	3555	our @FOFS; # file offset, if > 0
		3556	our @SIZE; # size of face, in octets
		3557	our @META; # meta hash of face, if any
		3558	our $DATAFH; # facedata filehandle
2157		3559
2158	my $pid;	3560	# internal api, not finalised
		3561	sub set {
		3562	my ($name, $type, $data) = @_;
2159		3563
2160	sub db_save() {	3564	my $idx = cf::face::find $name;
2161	waitpid $pid, 0 if $pid;
2162	if (0 == ($pid = fork)) {
2163	$DB->{_meta}{version} = 1;
2164	Storable::nstore $DB, "$path~";
2165	rename "$path~", $path;
2166	cf::_exit 0 if defined $pid;
2167	}
2168	}
2169		3565
2170	my $dirty;	3566	if ($idx) {
2171		3567	delete $HASH{cf::face::get_csum $idx};
2172	sub db_sync() {
2173	db_save if $dirty;
2174	undef $dirty;
2175	}
2176
2177	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178	db_sync;
2179	});
2180
2181	sub db_dirty() {
2182	$dirty = 1;
2183	$idle->start;
2184	}
2185
2186	sub db_get($;$) {
2187	@_ >= 2
2188	? $DB->{$_[0]}{$_[1]}
2189	: ($DB->{$_[0]} ||= { })
2190	}
2191
2192	sub db_put($$;$) {
2193	if (@_ >= 3) {
2194	$DB->{$_[0]}{$_[1]} = $_[2];
2195	} else {	3568	} else {
2196	$DB->{$_[0]} = $_[1];	3569	$idx = cf::face::alloc $name;
2197	}
2198	db_dirty;
2199	}
2200
2201	cf::global->attach (
2202	prio => 10000,
2203	on_cleanup => sub {
2204	db_sync;
2205	},	3570	}
		3571
		3572	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3573
		3574	cf::face::set_type $idx, $type;
		3575	cf::face::set_csum $idx, 0, $hash;
		3576
		3577	# we need to destroy the SV itself, not just modify it, as a running ix
		3578	# might hold a reference to it: "delete" achieves that.
		3579	delete $FOFS[0][$idx];
		3580	delete $DATA[0][$idx];
		3581	$DATA[0][$idx] = $data;
		3582	$SIZE[0][$idx] = length $data;
		3583	delete $META[$idx];
		3584	$HASH{$hash} = $idx;#d#
		3585
		3586	$idx
		3587	}
		3588
		3589	sub _get_data($$$) {
		3590	my ($idx, $set, $cb) = @_;
		3591
		3592	if (defined $DATA[$set][$idx]) {
		3593	$cb->($DATA[$set][$idx]);
		3594	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3595	my $size = $SIZE[$set][$idx];
		3596	my $buf;
		3597	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3598	if ($_[0] == $size) {
		3599	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3600	$cb->($buf);
		3601	} else {
		3602	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3603	}
		3604	};
		3605	} else {
		3606	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3607	}
		3608	}
		3609
		3610	# rather ineffient
		3611	sub cf::face::get_data($;$) {
		3612	my ($idx, $set) = @_;
		3613
		3614	_get_data $idx, $set, Coro::rouse_cb;
		3615	Coro::rouse_wait
		3616	}
		3617
		3618	sub cf::face::ix {
		3619	my ($ns, $set, $idx, $pri) = @_;
		3620
		3621	_get_data $idx, $set, sub {
		3622	$ns->ix_send ($idx, $pri, $_[0]);
		3623	};
		3624	}
		3625	}
		3626
		3627	sub load_facedata($) {
		3628	my ($path) = @_;
		3629
		3630	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3631
		3632	trace "loading facedata from $path\n";
		3633
		3634	my $facedata = decode_storable load_file "$path/faceinfo";
		3635
		3636	$facedata->{version} == 2
		3637	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3638
		3639	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3640	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3641
		3642	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3643
		3644	# BEGIN ATOMIC
		3645	# from here on, everything must be atomic - no thread switch allowed
		3646	my $t1 = EV::time;
		3647
		3648	{
		3649	my $faces = $facedata->{faceinfo};
		3650
		3651	for my $face (sort keys %$faces) {
		3652	my $info = $faces->{$face};
		3653	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3654
		3655	cf::face::set_visibility $idx, $info->{visibility};
		3656	cf::face::set_magicmap $idx, $info->{magicmap};
		3657	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3658	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3659	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3660	$cf::face::HASH{$info->{hash64}} = $idx;
		3661	delete $cf::face::META[$idx];
		3662	}
		3663
		3664	while (my ($face, $info) = each %$faces) {
		3665	next unless $info->{smooth};
		3666
		3667	my $idx = cf::face::find $face
		3668	or next;
		3669
		3670	if (my $smooth = cf::face::find $info->{smooth}) {
		3671	cf::face::set_smooth $idx, $smooth;
		3672	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3673	} else {
		3674	error "smooth face '$info->{smooth}' not found for face '$face'";
		3675	}
		3676	}
		3677	}
		3678
		3679	{
		3680	my $anims = $facedata->{animinfo};
		3681
		3682	while (my ($anim, $info) = each %$anims) {
		3683	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3684	}
		3685
		3686	cf::anim::invalidate_all; # d'oh
		3687	}
		3688
		3689	{
		3690	my $res = $facedata->{resource};
		3691
		3692	while (my ($name, $info) = each %$res) {
		3693	if (defined (my $type = $info->{type})) {
		3694	# TODO: different hash - must free and use new index, or cache ixface data queue
		3695	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3696
		3697	cf::face::set_type $idx, $type;
		3698	cf::face::set_csum $idx, 0, $info->{hash};
		3699	$cf::face::SIZE[0][$idx] = $info->{size};
		3700	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3701	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3702	$cf::face::HASH{$info->{hash}} = $idx;
		3703	} else {
		3704	# $RESOURCE{$name} = $info; # unused
		3705	}
		3706	}
		3707	}
		3708
		3709	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3710
		3711	# HACK to clear player env face cache, we need some signal framework
		3712	# for this (global event?)
		3713	%ext::player_env::MUSIC_FACE_CACHE = ();
		3714
		3715	# END ATOMIC
		3716
		3717	cf::debug "facedata atomic update time ", EV::time - $t1;
		3718
		3719	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3720
		3721	aio_close $fh if $fh; # close old facedata
		3722
		3723	1
		3724	}
		3725
		3726	register_exticmd fx_want => sub {
		3727	my ($ns, $want) = @_;
		3728
		3729	while (my ($k, $v) = each %$want) {
		3730	$ns->fx_want ($k, $v);
		3731	}
		3732	};
		3733
		3734	sub load_resource_file($) {
		3735	my $guard = lock_acquire "load_resource_file";
		3736
		3737	my $status = load_resource_file_ $_[0];
		3738	get_slot 0.1, 100;
		3739	cf::arch::commit_load;
		3740
		3741	$status
		3742	}
		3743
		3744	sub reload_exp_table {
		3745	_reload_exp_table;
		3746
		3747	cf::face::set
		3748	"res/exp_table" => FT_RSRC,
		3749	JSON::XS->new->utf8->canonical->encode (
		3750	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
2206	);	3751	);
2207	}	3752	}
2208		3753
2209	#############################################################################	3754	sub reload_materials {
2210	# the server's main()	3755	_reload_materials;
		3756	}
2211		3757
2212	sub cfg_load {	3758	sub reload_regions {
2213	open my $fh, "<:utf8", cf::confdir . "/config"	3759	# HACK to clear player env face cache, we need some signal framework
2214	or return;	3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
2215		3762
2216	local $/;	3763	load_resource_file "$MAPDIR/regions"
2217	*CFG = YAML::Syck::Load <$fh>;	3764	or die "unable to load regions file\n";
2218		3765
		3766	for (cf::region::list) {
		3767	$_->{match} = qr/$_->{match}/
		3768	if exists $_->{match};
		3769	}
		3770	}
		3771
		3772	sub reload_facedata {
		3773	load_facedata $DATADIR
		3774	or die "unable to load facedata\n";
		3775	}
		3776
		3777	sub reload_archetypes {
		3778	load_resource_file "$DATADIR/archetypes"
		3779	or die "unable to load archetypes\n";
		3780
		3781	cf::face::set
		3782	"res/skill_info" => FT_RSRC,
		3783	JSON::XS->new->utf8->canonical->encode (
		3784	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3785	);
		3786
		3787	cf::face::set
		3788	"res/spell_paths" => FT_RSRC,
		3789	JSON::XS->new->utf8->canonical->encode (
		3790	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3791	);
		3792
		3793	# command completion
		3794	my @commands;
		3795
		3796	for (0..cf::arch::skillvec_size - 1) {
		3797	my $skill = cf::arch::skillvec $_;
		3798	my $name = $skill->name;
		3799	my $flags = cf::skill_flags $skill->subtype;
		3800
		3801	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3802	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3803	}
		3804
		3805	cf::client::set_command_face skill => \@commands;
		3806	}
		3807
		3808	sub reload_treasures {
		3809	load_resource_file "$DATADIR/treasures"
		3810	or die "unable to load treasurelists\n";
		3811	}
		3812
		3813	sub reload_sound {
		3814	trace "loading sound config from $DATADIR/sound\n";
		3815
		3816	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3817
		3818	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3819	my $sound = $soundconf->{compat}[$_]
		3820	or next;
		3821
		3822	my $face = cf::face::find "sound/$sound->[1]";
		3823	cf::sound::set $sound->[0] => $face;
		3824	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3825	}
		3826
		3827	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3828	my $face = cf::face::find "sound/$v";
		3829	cf::sound::set $k => $face;
		3830	}
		3831	}
		3832
		3833	sub reload_resources {
		3834	trace "reloading resource files...\n";
		3835
		3836	reload_materials;
		3837	reload_facedata;
		3838	reload_exp_table;
		3839	reload_sound;
		3840	reload_archetypes;
		3841	reload_regions;
		3842	reload_treasures;
		3843
		3844	trace "finished reloading resource files\n";
		3845	}
		3846
		3847	sub reload_config {
		3848	trace "reloading config file...\n";
		3849
		3850	my $config = load_file "$CONFDIR/config";
		3851	utf8::decode $config;
		3852	*CFG = decode_yaml $config;
		3853
2219	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3854	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2220		3855
2221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3856	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3857	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2223		3858
2224	if (exists $CFG{mlockall}) {	3859	if (exists $CFG{mlockall}) {
…		…
2228	};	3863	};
2229	warn $@ if $@;	3864	warn $@ if $@;
2230	}	3865	}
2231	}	3866	}
2232		3867
		3868	sub pidfile() {
		3869	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3870	or die "$PIDFILE: $!";
		3871	flock $fh, &Fcntl::LOCK_EX
		3872	or die "$PIDFILE: flock: $!";
		3873	$fh
		3874	}
		3875
		3876	# make sure only one server instance is running at any one time
		3877	sub atomic {
		3878	my $fh = pidfile;
		3879
		3880	my $pid = <$fh>;
		3881	kill 9, $pid if $pid > 0;
		3882
		3883	seek $fh, 0, 0;
		3884	print $fh $$;
		3885	}
		3886
		3887	sub main_loop {
		3888	trace "EV::loop starting\n";
		3889	if (1) {
		3890	EV::loop;
		3891	}
		3892	trace "EV::loop returned\n";
		3893	goto &main_loop unless $REALLY_UNLOOP;
		3894	}
		3895
2233	sub main {	3896	sub main {
		3897	cf::init_globals; # initialise logging
		3898
		3899	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3900	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3901	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3902	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3903
		3904	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3905
2234	# we must not ever block the main coroutine	3906	# we must not ever block the main coroutine
2235	local $Coro::idle = sub {	3907	$Coro::idle = sub {
2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3908	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2237	(async {	3909	(async {
2238	Event::one_event;	3910	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3911	EV::loop EV::LOOP_ONESHOT;
2239	})->prio (Coro::PRIO_MAX);	3912	})->prio (Coro::PRIO_MAX);
2240	};	3913	};
2241		3914
2242	cfg_load;	3915	evthread_start IO::AIO::poll_fileno;
2243	db_load;	3916
		3917	cf::sync_job {
		3918	cf::incloader::init ();
		3919
		3920	db_init;
		3921
		3922	cf::init_anim;
		3923	cf::init_attackmess;
		3924	cf::init_dynamic;
		3925
		3926	cf::load_settings;
		3927
		3928	reload_resources;
		3929	reload_config;
		3930
		3931	cf::init_uuid;
		3932	cf::init_signals;
		3933	cf::init_skills;
		3934
		3935	cf::init_beforeplay;
		3936
		3937	atomic;
		3938
2244	load_extensions;	3939	load_extensions;
2245	Event::loop;	3940
		3941	utime time, time, $RUNTIMEFILE;
		3942
		3943	# no (long-running) fork's whatsoever before this point(!)
		3944	use POSIX ();
		3945	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3946
		3947	cf::_post_init 0;
		3948	};
		3949
		3950	cf::object::thawer::errors_are_fatal 0;
		3951	info "parse errors in files are no longer fatal from this point on.\n";
		3952
		3953	AE::postpone {
		3954	undef &main; # free gobs of memory :)
		3955	};
		3956
		3957	goto &main_loop;
2246	}	3958	}
2247		3959
2248	#############################################################################	3960	#############################################################################
2249	# initialisation and cleanup	3961	# initialisation and cleanup
2250		3962
2251	# install some emergency cleanup handlers	3963	# install some emergency cleanup handlers
2252	BEGIN {	3964	BEGIN {
		3965	our %SIGWATCHER = ();
2253	for my $signal (qw(INT HUP TERM)) {	3966	for my $signal (qw(INT HUP TERM)) {
2254	Event->signal (	3967	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2255	data => WF_AUTOCANCEL,
2256	signal => $signal,
2257	cb => sub {
2258	cf::cleanup "SIG$signal";	3968	cf::cleanup "SIG$signal";
2259	},
2260	);	3969	};
		3970	}
		3971	}
		3972
		3973	sub write_runtime_sync {
		3974	my $t0 = AE::time;
		3975
		3976	# first touch the runtime file to show we are still running:
		3977	# the fsync below can take a very very long time.
		3978
		3979	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3980
		3981	my $guard = cf::lock_acquire "write_runtime";
		3982
		3983	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3984	or return;
		3985
		3986	my $value = $cf::RUNTIME + 90 + 10;
		3987	# 10 is the runtime save interval, for a monotonic clock
		3988	# 60 allows for the watchdog to kill the server.
		3989
		3990	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3991	and return;
		3992
		3993	# always fsync - this file is important
		3994	aio_fsync $fh
		3995	and return;
		3996
		3997	# touch it again to show we are up-to-date
		3998	aio_utime $fh, undef, undef;
		3999
		4000	close $fh
		4001	or return;
		4002
		4003	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4004	and return;
		4005
		4006	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4007
2261	}	4008	1
		4009	}
		4010
		4011	our $uuid_lock;
		4012	our $uuid_skip;
		4013
		4014	sub write_uuid_sync($) {
		4015	$uuid_skip ||= $_[0];
		4016
		4017	return if $uuid_lock;
		4018	local $uuid_lock = 1;
		4019
		4020	my $uuid = "$LOCALDIR/uuid";
		4021
		4022	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4023	or return;
		4024
		4025	my $value = uuid_seq uuid_cur;
		4026
		4027	unless ($value) {
		4028	info "cowardly refusing to write zero uuid value!\n";
		4029	return;
		4030	}
		4031
		4032	my $value = uuid_str $value + $uuid_skip;
		4033	$uuid_skip = 0;
		4034
		4035	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4036	and return;
		4037
		4038	# always fsync - this file is important
		4039	aio_fsync $fh
		4040	and return;
		4041
		4042	close $fh
		4043	or return;
		4044
		4045	aio_rename "$uuid~", $uuid
		4046	and return;
		4047
		4048	trace "uuid file written ($value).\n";
		4049
		4050	1
		4051
		4052	}
		4053
		4054	sub write_uuid($$) {
		4055	my ($skip, $sync) = @_;
		4056
		4057	$sync ? write_uuid_sync $skip
		4058	: async { write_uuid_sync $skip };
2262	}	4059	}
2263		4060
2264	sub emergency_save() {	4061	sub emergency_save() {
2265	my $freeze_guard = cf::freeze_mainloop;	4062	my $freeze_guard = cf::freeze_mainloop;
2266		4063
2267	warn "enter emergency perl save\n";	4064	info "emergency_perl_save: enter\n";
		4065
		4066	# this is a trade-off: we want to be very quick here, so
		4067	# save all maps without fsync, and later call a global sync
		4068	# (which in turn might be very very slow)
		4069	local $USE_FSYNC = 0;
2268		4070
2269	cf::sync_job {	4071	cf::sync_job {
		4072	cf::write_runtime_sync; # external watchdog should not bark
		4073
2270	# use a peculiar iteration method to avoid tripping on perl	4074	# use a peculiar iteration method to avoid tripping on perl
2271	# refcount bugs in for. also avoids problems with players	4075	# refcount bugs in for. also avoids problems with players
2272	# and maps saved/destroyed asynchronously.	4076	# and maps saved/destroyed asynchronously.
2273	warn "begin emergency player save\n";	4077	info "emergency_perl_save: begin player save\n";
2274	for my $login (keys %cf::PLAYER) {	4078	for my $login (keys %cf::PLAYER) {
2275	my $pl = $cf::PLAYER{$login} or next;	4079	my $pl = $cf::PLAYER{$login} or next;
2276	$pl->valid or next;	4080	$pl->valid or next;
		4081	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2277	$pl->save;	4082	$pl->save;
2278	}	4083	}
2279	warn "end emergency player save\n";	4084	info "emergency_perl_save: end player save\n";
2280		4085
2281	warn "begin emergency map save\n";	4086	cf::write_runtime_sync; # external watchdog should not bark
		4087
		4088	info "emergency_perl_save: begin map save\n";
2282	for my $path (keys %cf::MAP) {	4089	for my $path (keys %cf::MAP) {
2283	my $map = $cf::MAP{$path} or next;	4090	my $map = $cf::MAP{$path} or next;
2284	$map->valid or next;	4091	$map->valid or next;
2285	$map->save;	4092	$map->save;
2286	}	4093	}
2287	warn "end emergency map save\n";	4094	info "emergency_perl_save: end map save\n";
		4095
		4096	cf::write_runtime_sync; # external watchdog should not bark
		4097
		4098	info "emergency_perl_save: begin database checkpoint\n";
		4099	BDB::db_env_txn_checkpoint $DB_ENV;
		4100	info "emergency_perl_save: end database checkpoint\n";
		4101
		4102	info "emergency_perl_save: begin write uuid\n";
		4103	write_uuid_sync 1;
		4104	info "emergency_perl_save: end write uuid\n";
		4105
		4106	cf::write_runtime_sync; # external watchdog should not bark
		4107
		4108	trace "emergency_perl_save: syncing database to disk";
		4109	BDB::db_env_txn_checkpoint $DB_ENV;
		4110
		4111	info "emergency_perl_save: starting sync\n";
		4112	IO::AIO::aio_sync sub {
		4113	info "emergency_perl_save: finished sync\n";
		4114	};
		4115
		4116	cf::write_runtime_sync; # external watchdog should not bark
		4117
		4118	trace "emergency_perl_save: flushing outstanding aio requests";
		4119	while (IO::AIO::nreqs || BDB::nreqs) {
		4120	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4121	}
		4122
		4123	cf::write_runtime_sync; # external watchdog should not bark
2288	};	4124	};
2289		4125
2290	warn "leave emergency perl save\n";	4126	info "emergency_perl_save: leave\n";
2291	}	4127	}
2292		4128
		4129	sub post_cleanup {
		4130	my ($make_core) = @_;
		4131
		4132	IO::AIO::flush;
		4133
		4134	error Carp::longmess "post_cleanup backtrace"
		4135	if $make_core;
		4136
		4137	my $fh = pidfile;
		4138	unlink $PIDFILE if <$fh> == $$;
		4139	}
		4140
		4141	# a safer delete_package, copied from Symbol
		4142	sub clear_package($) {
		4143	my $pkg = shift;
		4144
		4145	# expand to full symbol table name if needed
		4146	unless ($pkg =~ /^main::.*::$/) {
		4147	$pkg = "main$pkg" if $pkg =~ /^::/;
		4148	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4149	$pkg .= '::' unless $pkg =~ /::$/;
		4150	}
		4151
		4152	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4153	my $stem_symtab = *{$stem}{HASH};
		4154
		4155	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4156	or return;
		4157
		4158	# clear all symbols
		4159	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4160	for my $name (keys %$leaf_symtab) {
		4161	_gv_clear *{"$pkg$name"};
		4162	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4163	}
		4164	}
		4165
2293	sub reload() {	4166	sub do_reload_perl() {
2294	# can/must only be called in main	4167	# can/must only be called in main
2295	if ($Coro::current != $Coro::main) {	4168	unless (in_main) {
2296	warn "can only reload from main coroutine\n";	4169	error "can only reload from main coroutine";
2297	return;	4170	return;
2298	}	4171	}
2299		4172
2300	warn "reloading...";	4173	return if $RELOAD++;
2301		4174
2302	warn "freezing server";	4175	my $t1 = AE::time;
2303	my $guard = freeze_mainloop;	4176
		4177	while ($RELOAD) {
		4178	cf::get_slot 0.1, -1, "reload_perl";
		4179	info "perl_reload: reloading...";
		4180
		4181	trace "perl_reload: entering sync_job";
		4182
		4183	cf::sync_job {
2304	cf::emergency_save;	4184	#cf::emergency_save;
2305		4185
2306	warn "sync database to disk";	4186	trace "perl_reload: cancelling all extension coros";
2307	cf::db_sync;
2308	IO::AIO::flush;
2309
2310	eval {
2311	# if anything goes wrong in here, we should simply crash as we already saved
2312
2313	warn "cancel all watchers";
2314	for (Event::all_watchers) {
2315	$_->cancel if $_->data & WF_AUTOCANCEL;
2316	}
2317
2318	warn "cancel all extension coros";
2319	$_->cancel for values %EXT_CORO;	4187	$_->cancel for values %EXT_CORO;
2320	%EXT_CORO = ();	4188	%EXT_CORO = ();
2321		4189
2322	warn "remove commands";	4190	trace "perl_reload: removing commands";
2323	%COMMAND = ();	4191	%COMMAND = ();
2324		4192
2325	warn "remove ext commands";	4193	trace "perl_reload: removing ext/exti commands";
2326	%EXTCMD = ();	4194	%EXTCMD = ();
		4195	%EXTICMD = ();
2327		4196
2328	warn "unload/nuke all extensions";	4197	trace "perl_reload: unloading/nuking all extensions";
2329	for my $pkg (@EXTS) {	4198	for my $pkg (@EXTS) {
2330	warn "... unloading $pkg";	4199	trace "... unloading $pkg";
2331		4200
2332	if (my $cb = $pkg->can ("unload")) {	4201	if (my $cb = $pkg->can ("unload")) {
2333	eval {	4202	eval {
2334	$cb->($pkg);	4203	$cb->($pkg);
2335	1	4204	1
2336	} or warn "$pkg unloaded, but with errors: $@";	4205	} or error "$pkg unloaded, but with errors: $@";
		4206	}
		4207
		4208	trace "... clearing $pkg";
		4209	clear_package $pkg;
2337	}	4210	}
2338		4211
2339	warn "... nuking $pkg";
2340	Symbol::delete_package $pkg;
2341	}
2342
2343	warn "unload all perl modules loaded from $LIBDIR";	4212	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2344	while (my ($k, $v) = each %INC) {	4213	while (my ($k, $v) = each %INC) {
2345	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4214	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2346		4215
2347	warn "removing <$k>";	4216	trace "... unloading $k";
2348	delete $INC{$k};	4217	delete $INC{$k};
2349		4218
2350	$k =~ s/\.pm$//;	4219	$k =~ s/\.pm$//;
2351	$k =~ s/\//::/g;	4220	$k =~ s/\//::/g;
2352		4221
2353	if (my $cb = $k->can ("unload_module")) {	4222	if (my $cb = $k->can ("unload_module")) {
2354	$cb->();	4223	$cb->();
		4224	}
		4225
		4226	clear_package $k;
2355	}	4227	}
2356		4228
2357	Symbol::delete_package $k;
2358	}
2359
2360	warn "get rid of safe::, as good as possible";	4229	trace "perl_reload: getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	4230	clear_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4231	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		4232
2364	warn "unload cf.pm \"a bit\"";	4233	trace "perl_reload: unloading cf.pm \"a bit\"";
2365	delete $INC{"cf.pm"};	4234	delete $INC{"cf.pm"};
		4235	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2366		4236
2367	# don't, removes xs symbols, too,	4237	# don't, removes xs symbols, too,
2368	# and global variables created in xs	4238	# and global variables created in xs
2369	#Symbol::delete_package __PACKAGE__;	4239	#clear_package __PACKAGE__;
2370		4240
2371	warn "reloading cf.pm";	4241	info "perl_reload: unload completed, starting to reload now";
		4242
		4243	trace "perl_reload: reloading cf.pm";
2372	require cf;	4244	require cf;
2373	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4245	cf::_connect_to_perl_1;
2374		4246
2375	warn "load config and database again";	4247	trace "perl_reload: loading config and database again";
2376	cf::cfg_load;	4248	cf::reload_config;
2377	cf::db_load;
2378		4249
2379	warn "load extensions";	4250	trace "perl_reload: loading extensions";
2380	cf::load_extensions;	4251	cf::load_extensions;
2381		4252
		4253	if ($REATTACH_ON_RELOAD) {
2382	warn "reattach attachments to objects/players";	4254	trace "perl_reload: reattaching attachments to objects/players";
2383	_global_reattach;	4255	_global_reattach; # objects, sockets
2384	warn "reattach attachments to maps";	4256	trace "perl_reload: reattaching attachments to maps";
2385	reattach $_ for values %MAP;	4257	reattach $_ for values %MAP;
		4258	trace "perl_reload: reattaching attachments to players";
		4259	reattach $_ for values %PLAYER;
		4260	}
		4261
		4262	cf::_post_init 1;
		4263
		4264	trace "perl_reload: leaving sync_job";
		4265
		4266	1
		4267	} or do {
		4268	error $@;
		4269	cf::cleanup "perl_reload: error, exiting.";
		4270	};
		4271
		4272	--$RELOAD;
		4273	}
		4274
		4275	$t1 = AE::time - $t1;
		4276	info "perl_reload: completed in ${t1}s\n";
		4277	};
		4278
		4279	our $RELOAD_WATCHER; # used only during reload
		4280
		4281	sub reload_perl() {
		4282	# doing reload synchronously and two reloads happen back-to-back,
		4283	# coro crashes during coro_state_free->destroy here.
		4284
		4285	$RELOAD_WATCHER ||= cf::async {
		4286	Coro::AIO::aio_wait cache_extensions;
		4287
		4288	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4289	do_reload_perl;
		4290	undef $RELOAD_WATCHER;
		4291	};
2386	};	4292	};
2387		4293	}
2388	if ($@) {
2389	warn $@;
2390	warn "error while reloading, exiting.";
2391	exit 1;
2392	}
2393
2394	warn "reloaded";
2395	};
2396
2397	our $RELOAD_WATCHER; # used only during reload
2398		4294
2399	register_command "reload" => sub {	4295	register_command "reload" => sub {
2400	my ($who, $arg) = @_;	4296	my ($who, $arg) = @_;
2401		4297
2402	if ($who->flag (FLAG_WIZ)) {	4298	if ($who->flag (FLAG_WIZ)) {
2403	$who->message ("reloading server.");	4299	$who->message ("reloading server.");
2404		4300	async {
2405	# doing reload synchronously and two reloads happen back-to-back,	4301	$Coro::current->{desc} = "perl_reload";
2406	# coro crashes during coro_state_free->destroy here.
2407
2408	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2409	reload;	4302	reload_perl;
2410	undef $RELOAD_WATCHER;
2411	});	4303	};
2412	}	4304	}
2413	};	4305	};
2414		4306
2415	unshift @INC, $LIBDIR;	4307	#############################################################################
2416		4308
2417	$TICK_WATCHER = Event->timer (	4309	my $bug_warning = 0;
2418	reentrant => 0,
2419	prio => 0,
2420	at => $NEXT_TICK || $TICK,
2421	data => WF_AUTOCANCEL,
2422	cb => sub {
2423	$NOW = Event::time;
2424		4310
2425	cf::server_tick; # one server iteration	4311	sub wait_for_tick() {
2426	$RUNTIME += $TICK;	4312	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2427	$NEXT_TICK += $TICK;
2428		4313
		4314	$WAIT_FOR_TICK->wait;
		4315	}
		4316
		4317	sub wait_for_tick_begin() {
		4318	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4319
		4320	my $signal = new Coro::Signal;
		4321	push @WAIT_FOR_TICK_BEGIN, $signal;
		4322	$signal->wait;
		4323	}
		4324
		4325	sub tick {
		4326	if ($Coro::current != $Coro::main) {
		4327	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4328	unless ++$bug_warning > 10;
		4329	return;
		4330	}
		4331
		4332	cf::one_tick; # one server iteration
		4333
		4334	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4335
		4336	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4337	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4338	Coro::async_pool {
		4339	$Coro::current->{desc} = "runtime saver";
		4340	write_runtime_sync
		4341	or error "ERROR: unable to write runtime file: $!";
		4342	};
		4343	}
		4344
		4345	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4346	$sig->send;
		4347	}
2429	$WAIT_FOR_TICK->broadcast;	4348	$WAIT_FOR_TICK->broadcast;
2430	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2431		4349
2432	# if we are delayed by four ticks or more, skip them all	4350	$LOAD = ($NOW - $TICK_START) / $TICK;
2433	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4351	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2434		4352
2435	$TICK_WATCHER->at ($NEXT_TICK);	4353	if (0) {
2436	$TICK_WATCHER->start;	4354	if ($NEXT_TICK) {
		4355	my $jitter = $TICK_START - $NEXT_TICK;
		4356	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4357	debug "jitter $JITTER\n";#d#
		4358	}
2437	},	4359	}
2438	);	4360	}
2439		4361
		4362	{
		4363	# configure BDB
		4364	info "initialising database";
		4365
		4366	BDB::min_parallel 16;
		4367	BDB::max_poll_reqs $TICK * 0.1;
		4368	#$AnyEvent::BDB::WATCHER->priority (1);
		4369
		4370	unless ($DB_ENV) {
		4371	$DB_ENV = BDB::db_env_create;
		4372	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4373	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4374	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4375	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4376	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4377
		4378	cf::sync_job {
		4379	eval {
		4380	BDB::db_env_open
		4381	$DB_ENV,
		4382	$BDBDIR,
		4383	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4384	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4385	0666;
		4386
		4387	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4388	};
		4389
		4390	cf::cleanup "db_env_open(db): $@" if $@;
		4391	};
		4392	}
		4393
		4394	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4395	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4396	};
		4397	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4398	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4399	};
		4400	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4401	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4402	};
		4403
		4404	info "database initialised";
		4405	}
		4406
		4407	{
		4408	# configure IO::AIO
		4409
		4410	info "initialising aio";
		4411	IO::AIO::min_parallel 8;
2440	IO::AIO::max_poll_time $TICK * 0.2;	4412	IO::AIO::max_poll_time $TICK * 0.1;
		4413	undef $AnyEvent::AIO::WATCHER;
		4414	info "aio initialised";
		4415	}
2441		4416
2442	$AIO_POLL_WATCHER = Event->io (	4417	our $_log_backtrace;
2443	fd => IO::AIO::poll_fileno,	4418	our $_log_backtrace_last;
2444	poll => 'r',
2445	prio => 5,
2446	data => WF_AUTOCANCEL,
2447	cb => \&IO::AIO::poll_cb,
2448	);
2449		4419
2450	$WRITE_RUNTIME_WATCHER = Event->timer (	4420	sub _log_backtrace {
2451	data => WF_AUTOCANCEL,	4421	my ($msg, @addr) = @_;
2452	after => 0,	4422
2453	interval => 10,	4423	$msg =~ s/\n$//;
2454	cb => sub {	4424
2455	(Coro::unblock_sub {	4425	if ($_log_backtrace_last eq $msg) {
2456	write_runtime	4426	LOG llevInfo, "[ABT] $msg\n";
2457	or warn "ERROR: unable to write runtime file: $!";	4427	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4428	# limit the # of concurrent backtraces
		4429	} elsif ($_log_backtrace < 2) {
		4430	$_log_backtrace_last = $msg;
		4431	++$_log_backtrace;
		4432	my $perl_bt = Carp::longmess $msg;
		4433	async {
		4434	$Coro::current->{desc} = "abt $msg";
		4435
		4436	my @bt = fork_call {
		4437	@addr = map { sprintf "%x", $_ } @addr;
		4438	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4439	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4440	or die "addr2line: $!";
		4441
		4442	my @funcs;
		4443	my @res = <$fh>;
		4444	chomp for @res;
		4445	while (@res) {
		4446	my ($func, $line) = splice @res, 0, 2, ();
		4447	push @funcs, "[$func] $line";
		4448	}
		4449
		4450	@funcs
		4451	};
		4452
		4453	LOG llevInfo, "[ABT] $perl_bt\n";
		4454	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4455	LOG llevInfo, "[ABT] $_\n" for @bt;
		4456	--$_log_backtrace;
2458	})->();	4457	};
		4458	} else {
		4459	LOG llevInfo, "[ABT] $msg\n";
		4460	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2459	},	4461	}
2460	);	4462	}
		4463
		4464	# load additional modules
		4465	require "cf/$_.pm" for @EXTRA_MODULES;
		4466	cf::_connect_to_perl_2;
2461		4467
2462	END { cf::emergency_save }	4468	END { cf::emergency_save }
2463		4469
2464	1	4470	1
2465		4471

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