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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.116 by root, Mon Jan 1 17:30:34 2007 UTC vs.
Revision 1.610 by root, Tue Nov 20 14:40:01 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3;	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
20	use Digest::MD5;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
21	use Fcntl;	60	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	61	use YAML::XS ();
24	use Time::HiRes;	62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
25		65
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	66	AnyEvent::detect;
27		67
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	68	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		72
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	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" };
32		81
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
34		85
35	our %COMMAND = ();	86	our %COMMAND = ();
36	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
38		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	98	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
41		101
42	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	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;
45	our $NOW;	144	our $NOW;
46		145
47	our %CFG;	146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
48		149
49	our $UPTIME; $UPTIME ||= time;	150	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		152
52	our %MAP; # all maps	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	154	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	155	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	156	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
57		165
58	binmode STDOUT;	166	binmode STDOUT;
59	binmode STDERR;	167	binmode STDERR;
60		168
61	# read virtual server time, if available	169	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
66	}	174	}
67		175
68	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		177
74	# a special map that is always available	178	mkdir $_
75	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		180
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	181	our $EMERGENCY_POSITION;
		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
78		188
79	#############################################################################	189	#############################################################################
80		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
81	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
82		203
83	=over 4	204	=over 4
84		205
85	=item $cf::UPTIME	206	=item $cf::UPTIME
86		207
87	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.
88		224
89	=item $cf::RUNTIME	225	=item $cf::RUNTIME
90		226
91	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
92	every server tick.	228	every server tick.
93		229
94	=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
95		233
96	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		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
99	=item $cf::NOW	245	=item $cf::LOAD
100		246
101	The time of the last (current) server tick.	247	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		248
107	=item %cf::CFG	249	=item %cf::CFG
108		250
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	252	from wherever your confdir points to.
111		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
		289
112	=back	290	=back
113		291
114	=cut	292	=cut
115		293
116	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
117	*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 {
118	my $msg = join "", @_;	301	my $msg = join "", @_;
119	utf8::encode $msg;
120		302
121	$msg .= "\n"	303	$msg .= "\n"
122	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
123		305
124	LOG llevError, "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	307
126	}	308	LOG llevWarn, $msg;
		309	};
		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	};
127		324
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		332
135	# 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
136	# within the Safe compartment.	334	# within the Safe compartment.
137	for my $pkg (qw(	335	for my $pkg (qw(
138	cf::global cf::attachable	336	cf::global cf::attachable
139	cf::object cf::object::player	337	cf::object cf::object::player
140	cf::client cf::player	338	cf::client cf::player
141	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
142	cf::map cf::party cf::region	341	cf::party cf::region
143	)) {	342	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	344	}
147		345
148	$Event::DIED = sub {	346	$EV::DIED = sub {
149	warn "error in event callback: @_";	347	warn "error in event callback: $@";
150	};	348	};
151		349
152	my %ext_pkg;	350	#############################################################################
153	my @exts;	351
154	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
155		356
156	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
157		358
158	=over 4	359	=over 4
159		360
160	=cut	361	=item dumpval $ref
161		362
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
163		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
164	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
165		437
166	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
167		439
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
176		441
177	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
178		443
179	=cut	444	=cut
180		445
181	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
183	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] } @_
184	}	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	}
		511	}
		512
		513	=item cf::lock_wait $string
		514
		515	Wait until the given lock is available. See cf::lock_acquire.
		516
		517	=item my $lock = cf::lock_acquire $string
		518
		519	Wait until the given lock is available and then acquires it and returns
		520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		521	for example when the coroutine gets canceled), the lock is automatically
		522	returned.
		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
		527	Lock names should begin with a unique identifier (for example, cf::map::find
		528	uses map_find and cf::map::load uses map_load).
		529
		530	=item $locked = cf::lock_active $string
		531
		532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
		537
		538	sub lock_wait($) {
		539	$LOCKS->wait ($_[0]);
		540	}
		541
		542	sub lock_acquire($) {
		543	$LOCKS->guard ($_[0])
		544	}
		545
		546	sub lock_active($) {
		547	$LOCKS->count ($_[0]) < 1
		548	}
		549
		550	sub freeze_mainloop {
		551	tick_inhibit_inc;
		552
		553	&Guard::guard (\&tick_inhibit_dec);
		554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
		639	}
		640
		641	=item cf::async { BLOCK }
		642
		643	Currently the same as Coro::async_pool, meaning you cannot use
		644	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		645	thing you are allowed to do is call C<prio> on it.
		646
		647	=cut
		648
		649	BEGIN { *async = \&Coro::async_pool }
185		650
186	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
187		652
188	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
191		657
192	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
195	fast or be very important.	661	fast or be very important.
…		…
197	=cut	663	=cut
198		664
199	sub sync_job(&) {	665	sub sync_job(&) {
200	my ($job) = @_;	666	my ($job) = @_;
201		667
202	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
203	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
205		673
206	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	675
208	local $FREEZE = 1;	676	my $freeze_guard = freeze_mainloop;
209		677
210	my $busy = 1;	678	my $busy = 1;
211	my @res;	679	my @res;
212		680
213	(Coro::async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	683	@res = eval { $job->() };
215	warn $@ if $@;	684	error $@ if $@;
216	undef $busy;	685	undef $busy;
217	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
218		687
219	while ($busy) {	688	while ($busy) {
		689	if (Coro::nready) {
220	Coro::cede_notself;	690	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
222	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
223		699
224	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
225	} else {	701	} else {
226	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
227		703
228	$job->()	704	$job->()
229	}	705	}
230	}	706	}
231		707
232	=item $coro = cf::coro { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
233		709
234	Creates and returns a new coro. This coro is automcatially being canceled	710	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	711	extension calling this is being unloaded.
236		712
237	=cut	713	=cut
238		714
239	sub coro(&) {	715	sub async_ext(&) {
240	my $cb = shift;	716	my $cb = shift;
241		717
242	my $coro; $coro = async {	718	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		719
249	$coro->on_destroy (sub {	720	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	721	delete $EXT_CORO{$coro+0};
251	});	722	});
252	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
253		724
254	$coro	725	$coro
255	}	726	}
256		727
257	sub write_runtime {	728	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		729
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
261	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.
262		734
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		736
267	aio_fsync $fh	737	sub post_fork {
268	and return;	738	reset_signals;
		739	}
269		740
270	close $fh	741	sub fork_call(&@) {
271	or return;	742	my ($cb, @args) = @_;
272		743
273	aio_rename "$runtime~", $runtime	744	my @res = Coro::Util::fork_eval {
274	and return;	745	cf::post_fork;
		746	&$cb
		747	} @args;
275		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
276	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 => $type });
277	}	927	}
278		928
279	=back	929	=back
280		930
281	=cut	931	=cut
282		932
283	#############################################################################	933	#############################################################################
284		934
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402
403	#############################################################################
404
405	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
406		936
407	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
408	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")
409	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
410		940
411	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>
412	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
413	crossfire+).	943	Deliantra).
414		944
415	=over 4	945	=over 4
416		946
417	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
418		948
…		…
462	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
463		993
464	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
465	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
466		996
467	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
468	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.
469		999
470	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
471		1001
472	=over 4	1002	=over 4
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	1063	our @CB_MAP = ();
534		1064
535	my %attachment;	1065	my %attachment;
536		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
537	sub _attach_cb($$$$) {	1073	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
539		1075
540	use sort 'stable';	1076	use sort 'stable';
541		1077
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
576		1112
577	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		1117
582	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
584		1120
585	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
590		1126
591	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
593		1129
594	} elsif (ref $type) {	1130	} elsif (ref $type) {
595	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
596		1132
597	} else {	1133	} else {
598	shift @arg;	1134	shift @arg;
599	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
600	}	1136	}
601	}	1137	}
602	}	1138	}
603		1139
604	sub _object_attach {	1140	sub _object_attach {
…		…
614	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
615	}	1151	}
616		1152
617	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
618	} else {	1154	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
620	}	1156	}
621		1157
622	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
623	}	1159	}
624		1160
…		…
626	if (ref $_[0]) {	1162	if (ref $_[0]) {
627	_object_attach @_;	1163	_object_attach @_;
628	} else {	1164	} else {
629	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
630	}	1166	}
		1167	_recalc_want;
631	};	1168	};
632		1169
633	# all those should be optimised	1170	# all those should be optimised
634	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
639	reattach ($obj);	1176	reattach ($obj);
640	} else {	1177	} else {
641	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
642	}	1179	}
		1180	_recalc_want;
643	};	1181	};
644		1182
645	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
647		1185
…		…
662	";	1200	";
663	die if $@;	1201	die if $@;
664	}	1202	}
665		1203
666	our $override;	1204	our $override;
667	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?
668		1206
669	sub override {	1207	sub override {
670	$override = 1;	1208	$override = 1;
671	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
672	}	1210	}
673		1211
674	sub do_invoke {	1212	sub do_invoke {
675	my $event = shift;	1213	my $event = shift;
676	my $callbacks = shift;	1214	my $callbacks = shift;
677		1215
678	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
679		1217
680	local $override;	1218	local $override;
681		1219
682	for (@$callbacks) {	1220	for (@$callbacks) {
683	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
684		1222
685	if ($@) {	1223	if ($@) {
686	warn "$@";
687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
688	override;	1225	override;
689	}	1226	}
690		1227
691	return 1 if $override;	1228	return 1 if $override;
692	}	1229	}
693		1230
694	0	1231	0
695	}	1232	}
696		1233
697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
698		1235
699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
700		1237
701	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
702		1239
703	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
704	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
705	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		1243
707	=back	1244	=back
708		1245
709	=cut	1246	=cut
710		1247
711	#############################################################################	1248	#############################################################################
712	# 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	}
713		1292
714	sub reattach {	1293	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1295	my ($obj) = @_;
		1296
		1297	# no longer needed after getting rid of delete_package?
		1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1299
718	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
719		1301
720	@$registry = ();	1302	@$registry = ();
721		1303
…		…
726	for (@$attach) {	1308	for (@$attach) {
727	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
728	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
729	}	1311	}
730	} else {	1312	} else {
731	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
732	}	1314	}
733	}	1315	}
734	}	1316	}
735		1317
736	cf::attachable->attach (	1318	cf::attachable->attach (
737	prio => -1000000,	1319	prio => -1000000,
738	on_instantiate => sub {	1320	on_instantiate => sub {
739	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
740		1322
741	$data = from_json $data;	1323	$data = decode_json $data;
742		1324
743	for (@$data) {	1325	for (@$data) {
744	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
745		1327
746	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1344	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
764		1346
765	sync_job {	1347	sync_job {
766	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
769		1353
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$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;
773	aio_fsync $fh;	1359	aio_fsync $fh;
		1360	}
774	close $fh;	1361	aio_close $fh;
775		1362
776	if (@$objs) {	1363	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	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;
781	aio_fsync $fh;	1370	aio_fsync $fh;
		1371	}
782	close $fh;	1372	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
784	}	1374	}
785	} else {	1375	} else {
786	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
787	}	1377	}
788		1378
789	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1383	} else {
791	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
792	}	1385	}
793	} else {	1386	} else {
794	aio_unlink $filename;	1387	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
796	}	1389	}
797	}	1390	};
798	}	1391	}
799		1392
800	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
802		1395
…		…
814	or return;	1407	or return;
815		1408
816	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
818	or return;	1411	or return;
		1412
819	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
820	}	1415	}
821		1416
		1417	utf8::decode (my $decname = $filename);
		1418	trace sprintf "loading %s (%d,%d)\n",
		1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
822	return ($data, $av);	1422	($data, $av)
823	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
824		1430
825	#############################################################################	1431	#############################################################################
826	# command handling &c	1432	# command handling &c
827		1433
828	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
829		1435
830	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
831	$name.	1437	$name.
832		1438
833	=cut	1439	=cut
…		…
839	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
840		1446
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1448	}
843		1449
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
845		1451
846	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.
847		1457
848	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
849	called.
850		1459
851	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
852		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
853	sub register_extcmd {	1482	sub register_extcmd($$) {
854	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
855		1484
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
860	}	1486	}
		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 ();
861		1507
862	cf::player->attach (	1508	cf::player->attach (
863	on_command => sub {	1509	on_unknown_command => sub {
864	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
865		1511
866	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
867	or return;	1513	or return;
868		1514
…		…
873	cf::override;	1519	cf::override;
874	},	1520	},
875	on_extcmd => sub {	1521	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
877		1523
878	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1525
880	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
883	$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);
884	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
885	}	1547	}
		1548
886	} else {	1549	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1551	}
889		1552
890	cf::override;	1553	cf::override;
891	},	1554	},
892	);	1555	);
893		1556
894	sub register {	1557	# "readahead" all extensions
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	1558	sub cache_extensions {
901	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
902		1560
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
904	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
905	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
906	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";
908
909	warn "loading '$path' into '$pkg'\n";
910
911	open my $fh, "<:utf8", $path
912	or die "$path: $!";
913
914	my $source =
915	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })
918	. "\n};\n1";
919
920	eval $source
921	or die $@ ? "$path: $@\n"
922	: "extension disabled.\n";
923
924	push @exts, $pkg;
925	$ext_pkg{$base} = $pkg;
926
927	# no strict 'refs';
928	# @{"$pkg\::ISA"} = ext::;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }
943
944	# remove commands
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}	1564	}
953	}	1565	};
954		1566
955	# remove extcmds	1567	$grp
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1568	}
957	delete $EXTCMD{$name};
958	}
959		1569
960	if (my $cb = $pkg->can ("unload")) {	1570	sub _ext_cfg_reg($$$$) {
961	eval {	1571	my ($rvar, $varname, $cfgname, $default) = @_;
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966		1572
967	Symbol::delete_package $pkg;	1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
968	}	1579	}
969		1580
970	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
971	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	1590	next unless -r $path;
973	eval {	1591
974	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 $active;
		1663	}
975	1	1664	}
976	} or warn "$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	}
977	}	1677	};
978	}	1678	}
979		1679
980	#############################################################################	1680	#############################################################################
981	# load/save/clean perl data associated with a map
982		1681
983	*cf::mapsupport::on_clean = sub {	1682	=back
		1683
		1684	=head2 CORE EXTENSIONS
		1685
		1686	Functions and methods that extend core deliantra objects.
		1687
		1688	=cut
		1689
		1690	package cf::player;
		1691
		1692	use Coro::AIO;
		1693
		1694	=head3 cf::player
		1695
		1696	=over 4
		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
		1712	=item cf::player::find $login
		1713
		1714	Returns the given player object, loading it if necessary (might block).
		1715
		1716	=cut
		1717
		1718	sub playerdir($) {
		1719	"$PLAYERDIR/"
		1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1721	}
		1722
		1723	sub path($) {
		1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1725
		1726	(playerdir $login) . "/playerdata"
		1727	}
		1728
		1729	sub find_active($) {
		1730	$cf::PLAYER{$_[0]}
		1731	and $cf::PLAYER{$_[0]}->active
		1732	and $cf::PLAYER{$_[0]}
		1733	}
		1734
		1735	sub exists($) {
984	my ($map) = @_;	1736	my ($login) = @_;
985		1737
986	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
987	defined $path or return;	1739	or !aio_stat path $login
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}	1740	}
1000		1741
1001	# TODO: compatibility cruft, remove when no longer needed	1742	sub find($) {
		1743	return $cf::PLAYER{$_[0]} || do {
		1744	my $login = $_[0];
		1745
		1746	my $guard = cf::lock_acquire "user_find:$login";
		1747
		1748	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1764	$cf::PLAYER{$login} = $pl
		1765	}
		1766	}
		1767	}
		1768
1002	cf::player->attach (	1769	cf::player->attach (
1003	on_load => sub {	1770	on_load => sub {
1004	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
1005		1772
1006	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
1008	$o->set_ob_key_value ("_perl_data");
1009		1775
1010	%$o = %{ Storable::thaw pack "H*", $value };	1776	$pl->ob->current_weapon ($slots->[0]);
1011	}	1777	$pl->combat_ob ($slots->[1]);
1012	}	1778	$pl->ranged_ob ($slots->[2]);
1013	},	1779	},
1014	);	1780	);
1015		1781
1016	#############################################################################	1782	sub save($) {
		1783	my ($pl) = @_;
1017		1784
1018	=head2 CORE EXTENSIONS	1785	return if $pl->{deny_save};
1019		1786
1020	Functions and methods that extend core crossfire objects.	1787	my $path = path $pl;
		1788	my $guard = cf::lock_acquire "user_save:$path";
1021		1789
1022	=head3 cf::player	1790	return if $pl->{deny_save};
		1791
		1792	aio_mkdir playerdir $pl, 0770;
		1793	$pl->{last_save} = $cf::RUNTIME;
		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
		1800	$pl->save_pl ($path);
		1801	cf::cede_to_tick;
		1802	}
		1803
		1804	sub new($) {
		1805	my ($login) = @_;
		1806
		1807	my $self = create;
		1808
		1809	$self->ob->name ($login);
		1810	$self->{deny_save} = 1;
		1811
		1812	$cf::PLAYER{$login} = $self;
		1813
		1814	$self
		1815	}
		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
		1827	=item $pl->quit_character
		1828
		1829	Nukes the player without looking back. If logged in, the connection will
		1830	be destroyed. May block for a long time.
		1831
		1832	=cut
		1833
		1834	sub quit_character {
		1835	my ($pl) = @_;
		1836
		1837	my $name = $pl->ob->name;
		1838
		1839	$pl->{deny_save} = 1;
		1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1841
		1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
		1849	$pl->ns->destroy if $pl->ns;
		1850
		1851	my $path = playerdir $pl;
		1852	my $temp = "$path~$cf::RUNTIME~deleting~";
		1853	aio_rename $path, $temp;
		1854	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1877	}
		1878
		1879	=item cf::player::list_logins
		1880
		1881	Returns am arrayref of all valid playernames in the system, can take a
		1882	while and may block, so not sync_job-capable, ever.
		1883
		1884	=cut
		1885
		1886	sub list_logins {
		1887	my $dirs = aio_readdir $PLAYERDIR
		1888	or return [];
		1889
		1890	my @logins;
		1891
		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") {
		1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1899	aio_read $fh, 0, 512, my $buf, 0 or next;
		1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
		1902
		1903	utf8::decode $login;
		1904	push @logins, $login;
		1905	}
		1906
		1907	\@logins
		1908	}
		1909
		1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
		1913
		1914	Returns an arrayref of map paths that are private for this
		1915	player. May block.
		1916
		1917	=cut
		1918
		1919	sub maps($) {
		1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
		1923
		1924	my $files = aio_readdir playerdir $pl
		1925	or return;
		1926
		1927	my @paths;
		1928
		1929	for (@$files) {
		1930	utf8::decode $_;
		1931	next if /\.(?:pl|pst)$/;
		1932	next unless /^$PATH_SEP/o;
		1933
		1934	push @paths, cf::map::normalise "~$pl/$_";
		1935	}
		1936
		1937	\@paths
		1938	}
		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
		1944	=item $player->ext_msg ($type, @msg)
		1945
		1946	Sends an ext event to the client.
		1947
		1948	=cut
		1949
		1950	sub ext_msg($$@) {
		1951	my ($self, $type, @msg) = @_;
		1952
		1953	$self->ns->ext_msg ($type, @msg);
		1954	}
		1955
		1956	=head3 cf::region
1023		1957
1024	=over 4	1958	=over 4
1025		1959
1026	=item cf::player::exists $login
1027
1028	Returns true when the given account exists.
1029
1030	=cut	1960	=cut
1031		1961
1032	sub cf::player::exists($) {	1962	package cf::region;
1033	cf::player::find $_[0]
1034	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1035	}
1036		1963
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1964	=item cf::region::find_by_path $path
1038		1965
1039	Sends an ext reply to the player.	1966	Tries to decuce the likely region for a map knowing only its path.
1040		1967
1041	=cut	1968	=cut
1042		1969
1043	sub cf::player::ext_reply($$$%) {	1970	sub find_by_path($) {
1044	my ($self, $id, %msg) = @_;	1971	my ($path) = @_;
1045		1972
1046	$msg{msgid} = $id;	1973	$path =~ s/^~[^\/]*//; # skip ~login
1047		1974
1048	$self->send ("ext " . to_json \%msg);	1975	my ($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
1049	}	1985	}
1050		1986
1051	=back	1987	=back
1052
1053		1988
1054	=head3 cf::map	1989	=head3 cf::map
1055		1990
1056	=over 4	1991	=over 4
1057		1992
…		…
1060	package cf::map;	1995	package cf::map;
1061		1996
1062	use Fcntl;	1997	use Fcntl;
1063	use Coro::AIO;	1998	use Coro::AIO;
1064		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
1065	our $MAX_RESET = 7200;	2004	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	2005	our $DEFAULT_RESET = 3000;
1067		2006
1068	sub generate_random_map {	2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		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
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
		2036	my ($self, $merge) = @_;
		2037
		2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
		2041
		2042	$self->SUPER::thawer_merge ($merge);
		2043	}
		2044
		2045	sub normalise {
1069	my ($path, $rmp) = @_;	2046	my ($path, $base) = @_;
1070		2047
1071	# mit "rum" bekleckern, nicht	2048	$path = "$path"; # make sure it's a string
1072	cf::map::_create_random_map	2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
1073	$path,	2077	$path
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(cf::region::find $rmp->{region})
1085	}	2078	}
1086		2079
1087	# and all this just because we cannot iterate over	2080	sub new_from_path {
1088	# all maps in C++...	2081	my (undef, $path, $base) = @_;
1089	sub change_all_map_light {	2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
1090	my ($change) = @_;	2102	my ($self) = @_;
1091		2103
1092	$_->change_map_light ($change) for values %cf::MAP;	2104	$self
1093	}	2105	}
1094		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
1095	sub try_load_header($) {	2157	sub load_header_from($) {
1096	my ($path) = @_;	2158	my ($self, $path) = @_;
1097		2159
1098	utf8::encode $path;	2160	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1100	or return;	2162	or return;
1101		2163
1102	my $map = cf::map::new	2164	$self->_load_header ($f)
1103	or return;	2165	or return;
1104		2166
1105	$map->load_header ($path)	2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
		2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		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	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
1106	or return;	2217	or return;
		2218	$self->prepare_orig;
		2219	}
1107		2220
1108	$map->{load_path} = $path;	2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
1109		2223
1110	$map	2224	$self->default_region (cf::region::find_by_path $self->{path})
1111	}	2225	unless $self->default_region;
1112		2226
		2227	1
		2228	}
		2229
		2230	sub find;
1113	sub find_map {	2231	sub find {
1114	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1115		2233
1116	#warn "find_map<$path,$origin>\n";#d#	2234	cf::cede_to_tick;
1117		2235
1118	$path = new cf::path $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1119	my $key = $path->as_string;
1120		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2239	my $guard2 = cf::lock_acquire "map_find:$path";
		2240
1121	$cf::MAP{$key} || do {	2241	$cf::MAP{$path} || do {
1122	# do it the slow way	2242	my $map = new_from_path cf::map $path
1123	my $map = try_load_header $path->save_path;
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	2243	or return;
1137		2244
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1149	$map->last_access ($cf::RUNTIME);
1150		2246
1151	if ($map->should_reset) {	2247	$map->load_header
		2248	or return;
		2249
		2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1152	$map->reset;	2255	$map->reset;
1153	$map = find_map $path;	2256	return find $path;
1154	}	2257	}
1155		2258
1156	$cf::MAP{$key} = $map	2259	$cf::MAP{$path} = $map
1157	}	2260	}
1158	}	2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
1159		2265
1160	sub load {	2266	sub load {
1161	my ($self) = @_;	2267	my ($self) = @_;
1162		2268
1163	return if $self->in_memory != cf::MAP_SWAPPED;	2269	local $self->{deny_reset} = 1; # loading can take a long time
1164
1165	$self->in_memory (cf::MAP_LOADING);
1166		2270
1167	my $path = $self->{path};	2271	my $path = $self->{path};
1168		2272
		2273	{
		2274	my $guard = cf::lock_acquire "map_data:$path";
		2275
		2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
		2278
1169	$self->alloc;	2279	$self->alloc;
1170	$self->load_objects ($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)
1171	or return;	2288	or return;
1172		2289
1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1174	if delete $self->{load_original};	2291	if delete $self->{load_original};
1175		2292
1176	if (my $uniq = $path->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1177	utf8::encode $uniq;	2294	utf8::encode $uniq;
1178	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1179	$self->clear_unique_items;	2297	$self->clear_unique_items;
1180	$self->load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1181	}	2302	}
1182	}
1183		2303
		2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1184	# now do the right thing for maps	2313	# now do the right thing for maps
1185	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1186
1187	if ($self->{path}->is_style_map) {
1188	$self->{deny_save} = 1;
1189	$self->{deny_reset} = 1;
1190	} else {
1191	$self->fix_auto_apply;
1192	$self->decay_objects;
1193	$self->update_buttons;
1194	$self->set_darkness_map;
1195	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1196	unless $self->difficulty;	2316	unless $self->difficulty;
1197	$self->activate;	2317	cf::cede_to_tick;
		2318
		2319	unless ($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
1198	}	2333	1
1199
1200	$self->in_memory (cf::MAP_IN_MEMORY);
1201	}	2334	}
1202		2335
1203	sub load_map_sync {	2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
		2341
		2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
		2348	$self
		2349	}
		2350
		2351	sub find_sync {
1204	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1205		2353
1206	#warn "load_map_sync<$path, $origin>\n";#d#	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;
1207		2357
1208	cf::sync_job {	2358	find $path, $origin
1209	my $map = cf::map::find_map $path, $origin	2359	}
1210	or return;	2360
		2361	sub do_load_sync {
		2362	my ($map) = @_;
		2363
		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
1211	$map->load;	2368	$map->load;
1212	$map	2369	}
		2370
		2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		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;
		2398	};
		2399	$MAP_PREFETCHER->prio (6);
		2400
		2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1213	}	2433	}
1214	}	2434	}
1215		2435
1216	sub save {	2436	sub save {
1217	my ($self) = @_;	2437	my ($self) = @_;
1218		2438
1219	my $save = $self->{path}->save_path; utf8::encode $save;	2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1220	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1221		2440
1222	$self->{last_save} = $cf::RUNTIME;	2441	$self->_save;
1223
1224	return unless $self->dirty;
1225
1226	$self->{load_path} = $save;
1227
1228	return if $self->{deny_save};
1229
1230	if ($uniq) {
1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1232	$self->save_objects ($uniq, cf::IO_UNIQUES);
1233	} else {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1235	}
1236	}	2442	}
1237		2443
1238	sub swap_out {	2444	sub swap_out {
1239	my ($self) = @_;	2445	my ($self) = @_;
1240		2446
		2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1241	return if $self->players;	2451	return if $self->players;
1242	return if $self->in_memory != cf::MAP_IN_MEMORY;
1243	return if $self->{deny_save};
1244		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
1245	$self->save;	2459	$self->_save;
		2460
		2461	# then free the map
1246	$self->clear;	2462	$self->clear;
1247	$self->in_memory (cf::MAP_SWAPPED);
1248	}	2463	}
1249		2464
1250	sub reset_at {	2465	sub reset_at {
1251	my ($self) = @_;	2466	my ($self) = @_;
1252		2467
1253	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1254	return 1e99 if $self->{path}{user_rel};
1255	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1256		2470
1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1259		2473
…		…
1264	my ($self) = @_;	2478	my ($self) = @_;
1265		2479
1266	$self->reset_at <= $cf::RUNTIME	2480	$self->reset_at <= $cf::RUNTIME
1267	}	2481	}
1268		2482
1269	sub unlink_save {
1270	my ($self) = @_;
1271
1272	utf8::encode (my $save = $self->{path}->save_path);
1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1275	}
1276
1277	sub rename {
1278	my ($self, $new_path) = @_;
1279
1280	$self->unlink_save;
1281
1282	delete $cf::MAP{$self->path};
1283	$self->{path} = new cf::path $new_path;
1284	$self->path ($self->{path}->as_string);
1285	$cf::MAP{$self->path} = $self;
1286
1287	$self->save;
1288	}
1289
1290	sub reset {	2483	sub reset {
1291	my ($self) = @_;	2484	my ($self) = @_;
1292		2485
		2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2487
1293	return if $self->players;	2488	return if $self->players;
1294	return if $self->{path}{user_rel};#d#
1295		2489
1296	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	}
1297		2501
1298	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1299		2503
		2504	$self->deactivate;
1300	$_->clear_links_to ($self) for values %cf::MAP;	2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
1301		2507
1302	$self->unlink_save;	2508	$self->unlink_save;
1303	$self->destroy;	2509	$self->destroy;
1304	}	2510	}
1305		2511
1306	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1307		2513
1308	sub nuke {	2514	sub nuke {
1309	my ($self) = @_;	2515	my ($self) = @_;
1310		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
		2520	delete $cf::MAP{$self->path};
		2521
		2522	$self->unlink_save;
		2523
		2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
1311	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1312	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1313	$self->rename ("{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
1314	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
1315	}	2534	}
1316		2535
1317	sub customise_for {	2536	=item $maps = cf::map::tmp_maps
1318	my ($map, $ob) = @_;
1319		2537
1320	if ($map->per_player) {	2538	Returns an arrayref with all map paths of currently instantiated and saved
1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
1322	}	2544	[
1323		2545	map {
1324	$map	2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
1325	}	2552	}
1326		2553
1327	sub emergency_save {	2554	=item $maps = cf::map::random_maps
1328	local $cf::FREEZE = 1;
1329		2555
1330	warn "enter emergency map save\n";	2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
1331		2558
1332	cf::sync_job {	2559	=cut
1333	warn "begin emergency map save\n";	2560
1334	$_->save for values %cf::MAP;	2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
		2570	}
		2571
		2572	=item cf::map::unique_maps
		2573
		2574	Returns an arrayref of paths of all shared maps that have
		2575	instantiated unique items. May block.
		2576
		2577	=cut
		2578
		2579	sub unique_maps() {
		2580	[
		2581	map {
		2582	utf8::decode $_;
		2583	s/\.map$//; # TODO future compatibility hack
		2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
		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) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
1335	};	2618	}
1336		2619
1337	warn "end emergency map save\n";	2620	\@maps
		2621	}
		2622
		2623	=back
		2624
		2625	=head3 cf::object
		2626
		2627	=cut
		2628
		2629	package cf::object;
		2630
		2631	=over 4
		2632
		2633	=item $ob->inv_recursive
		2634
		2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
		2637
		2638	=cut
		2639
		2640	sub inv_recursive_;
		2641	sub inv_recursive_ {
		2642	map { $_, inv_recursive_ $_->inv } @_
		2643	}
		2644
		2645	sub inv_recursive {
		2646	inv_recursive_ inv $_[0]
		2647	}
		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	}
1338	}	2675	}
1339		2676
1340	package cf;	2677	package cf;
1341		2678
1342	=back	2679	=back
1343
1344		2680
1345	=head3 cf::object::player	2681	=head3 cf::object::player
1346		2682
1347	=over 4	2683	=over 4
1348		2684
…		…
1351	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>
1352	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
1353	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1354		2690
1355	=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	};
1356		2706
1357	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1358	# with dialog boxes.	2708	# with dialog boxes.
1359	#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
1360	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1362		2712
1363	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1364		2714
1365	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1366	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1367	} 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 {
1368	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1369	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1370	}	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 (@_);
1371	}	2740	}
1372		2741
1373	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1374		2743
1375	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1388		2757
1389	=item $player_object->enter_link	2758	=item $player_object->enter_link
1390		2759
1391	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}>).
1392		2761
1393	The player should be reaosnably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1394	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.
		2766
		2767	Will never block.
1395		2768
1396	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1397		2770
1398	Moves the player out of the specila link map onto the given map. If the	2771	Moves the player out of the special C<{link}> map onto the specified
1399	map is not valid (or omitted), the player will be moved back to the	2772	map. If the map is not valid (or omitted), the player will be moved back
1400	location he/she was before the call to C<enter_link>, or, if that fails,	2773	to the location he/she was before the call to C<enter_link>, or, if that
1401	to the emergency map position.	2774	fails, to the emergency map position.
1402		2775
1403	Might block.	2776	Might block.
1404		2777
1405	=cut	2778	=cut
		2779
		2780	sub link_map {
		2781	unless ($LINK_MAP) {
		2782	$LINK_MAP = cf::map::find "{link}"
		2783	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2784	$LINK_MAP->load;
		2785	}
		2786
		2787	$LINK_MAP
		2788	}
1406		2789
1407	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1408	my ($self) = @_;	2791	my ($self) = @_;
1409		2792
1410	return if $self->map == $LINK_MAP;
1411
1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1413	if $self->map;
1414
1415	$self->enter_map ($LINK_MAP, 20, 20);
1416	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
		2794
		2795	++$self->{_link_recursion};
		2796
		2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2798
		2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2800	if $self->map && $self->map->{path} ne "{link}";
		2801
		2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1417	}	2803	}
1418		2804
1419	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1420	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1421		2809
1422	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1423		2811
1424	unless ($map) {	2812	unless ($map) {
1425	# restore original map position	2813	# restore original map position
1426	($map, $x, $y) = @{ $link_pos || [] };	2814	($map, $x, $y) = @{ $link_pos || [] };
1427	$map = cf::map::find_map $map;	2815	$map = cf::map::find $map;
1428		2816
1429	unless ($map) {	2817	unless ($map) {
1430	($map, $x, $y) = @$EMERGENCY_POSITION;	2818	($map, $x, $y) = @$EMERGENCY_POSITION;
1431	$map = cf::map::find_map $map	2819	$map = cf::map::find $map
1432	or die "FATAL: cannot load emergency map\n";	2820	or die "FATAL: cannot load emergency map\n";
1433	}	2821	}
1434	}	2822	}
1435		2823
1436	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1437	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1438		2826
1439	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1440	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1441	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1442		2830
1443	$map->load;	2831	$map->load;
1444		2832
		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
1445	$self->activate_recursive;	2840	$self->activate_recursive;
1446	$self->enter_map ($map, $x, $y);	2841	}
1447	}
1448		2842
1449	=item $player_object->goto_map ($map, $x, $y)	2843	}
1450		2844
1451	=cut	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1452		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
		2856	=cut
		2857
		2858	our $GOTOGEN;
		2859
1453	sub cf::object::player::goto_map {	2860	sub cf::object::player::goto {
1454	my ($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;
1455		2871
1456	$self->enter_link;	2872	$self->enter_link;
1457		2873
1458	(Coro::async {	2874	(async {
1459	$path = new cf::path $path;	2875	$Coro::current->{desc} = "player::goto $path $x $y";
1460		2876
1461	my $map = cf::map::find_map $path->as_string;	2877	# *tag paths override both path and x|y
		2878	if ($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) {
1462	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
		2902	} else {
		2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
1463		2905
1464	warn "entering ", $map->path, " at ($x, $y)\n"
1465	if $map;	2906	$map
		2907	};
1466		2908
1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2909	if ($@) {
		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 $@;
		2912	}
1468		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1469	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1470	})->prio (1);	2920	})->prio (1);
1471	}	2921	}
1472		2922
1473	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1474		2924
…		…
1476		2926
1477	sub parse_random_map_params {	2927	sub parse_random_map_params {
1478	my ($spec) = @_;	2928	my ($spec) = @_;
1479		2929
1480	my $rmp = { # defaults	2930	my $rmp = { # defaults
1481	xsize => 10,	2931	xsize => (cf::rndm 15, 40),
1482	ysize => 10,	2932	ysize => (cf::rndm 15, 40),
		2933	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2934	#layout => string,
1483	};	2935	};
1484		2936
1485	for (split /\n/, $spec) {	2937	for (split /\n/, $spec) {
1486	my ($k, $v) = split /\s+/, $_, 2;	2938	my ($k, $v) = split /\s+/, $_, 2;
1487		2939
…		…
1499	# that depends on the exit object	2951	# that depends on the exit object
1500		2952
1501	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
1502		2954
1503	if ($exit->map) {	2955	if ($exit->map) {
1504	$rmp->{region} = $exit->map->region_name;	2956	$rmp->{region} = $exit->region->name;
1505	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
1506	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
1507	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
1508	}	2962	}
1509		2963
1510	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
1511		2965
1512	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1513	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
		2968	my $meta = "$RANDOMDIR/$md5.meta";
1514		2969
1515	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1516	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
		2972	undef $fh;
		2973	aio_rename "$meta~", $meta;
1517		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
1518	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
1519	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
1520	}	2981	}
1521	}	2982	}
1522		2983
1523	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
1524	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
1525		2986
1526	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
1527		2988
1528	$self->enter_link;	2989	$self->enter_link;
1529		2990
1530	(Coro::async {	2991	(async {
		2992	$Coro::current->{desc} = "enter_exit";
		2993
1531	unless (eval {	2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
1532		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
1533	prepare_random_map $exit	3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
1534	if $exit->slaying eq "/!";	3011	$map = $exit->slaying;
1535		3012
1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3013	} elsif ($slaying eq '!up') {
1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
1538		3017
		3018	} elsif ($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
1539	1;	3030	1
1540	}) {	3031	}) {
1541	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
1542	. "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. "
1543	. "Please report this to the dungeon master",	3034	. "Please report this to the dungeon master!",
1544	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
1545		3036
1546	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
1547	$self->leave_link;	3038	$self->leave_link;
1548	}	3039	}
1549	})->prio (1);	3040	})->prio (1);
1550	}	3041	}
1551		3042
1552	=head3 cf::client	3043	=head3 cf::client
1553		3044
1554	=over 4	3045	=over 4
1555		3046
1556	=item $client->send_drawinfo ($text, $flags)	3047	=item $client->send_big_packet ($pkt)
1557		3048
1558	Sends a drawinfo packet to the client. Circumvents output buffering so	3049	Like C<send_packet>, but tries to compress large packets, and fragments
1559	should not be used under normal circumstances.	3050	them as required.
1560		3051
1561	=cut	3052	=cut
1562		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" => $CHAT_CHANNEL,
		3199	);
		3200
1563	sub cf::client::send_drawinfo {	3201	sub cf::client::send_msg {
		3202	my ($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($$@) {
1564	my ($self, $text, $flags) = @_;	3247	my ($self, $type, @msg) = @_;
1565		3248
1566	utf8::encode $text;	3249	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
1567	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
1568	}	3250	}
1569
1570		3251
1571	=item $success = $client->query ($flags, "text", \&cb)	3252	=item $success = $client->query ($flags, "text", \&cb)
1572		3253
1573	Queues a query to the client, calling the given callback with	3254	Queues a query to the client, calling the given callback with
1574	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>,
1575	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>.
1576		3257
1577	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
1578	reliable at some point in the future.	3259	become reliable at some point in the future.
1579		3260
1580	=cut	3261	=cut
1581		3262
1582	sub cf::client::query {	3263	sub cf::client::query {
1583	my ($self, $flags, $text, $cb) = @_;	3264	my ($self, $flags, $text, $cb) = @_;
…		…
1591	utf8::encode $text;	3272	utf8::encode $text;
1592	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3273	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1593		3274
1594	$self->send_packet ($self->{query_queue}[0][0])	3275	$self->send_packet ($self->{query_queue}[0][0])
1595	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;
1596	}	3317	}
1597		3318
1598	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	},
1599	on_reply => sub {	3325	on_reply => sub {
1600	my ($ns, $msg) = @_;	3326	my ($ns, $msg) = @_;
1601		3327
1602	# this weird shuffling is so that direct followup queries	3328	# this weird shuffling is so that direct followup queries
1603	# get handled first	3329	# get handled first
1604	my $queue = delete $ns->{query_queue};	3330	my $queue = delete $ns->{query_queue}
		3331	or return; # be conservative, not sure how that can happen, but we saw a crash here
1605		3332
1606	(shift @$queue)->[1]->($msg);	3333	(shift @$queue)->[1]->($msg);
		3334	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1607		3335
1608	push @{ $ns->{query_queue} }, @$queue;	3336	push @{ $ns->{query_queue} }, @$queue;
1609		3337
1610	if (@{ $ns->{query_queue} } == @$queue) {	3338	if (@{ $ns->{query_queue} } == @$queue) {
1611	if (@$queue) {	3339	if (@$queue) {
…		…
1613	} else {	3341	} else {
1614	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3342	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1615	}	3343	}
1616	}	3344	}
1617	},	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	},
1618	);	3379	);
1619		3380
1620	=item $client->coro (\&cb)	3381	=item $client->async (\&cb)
1621		3382
1622	Create a new coroutine, running the specified callback. The coroutine will	3383	Create a new coroutine, running the specified callback. The coroutine will
1623	be automatically cancelled when the client gets destroyed (e.g. on logout,	3384	be automatically cancelled when the client gets destroyed (e.g. on logout,
1624	or loss of connection).	3385	or loss of connection).
1625		3386
1626	=cut	3387	=cut
1627		3388
1628	sub cf::client::coro {	3389	sub cf::client::async {
1629	my ($self, $cb) = @_;	3390	my ($self, $cb) = @_;
1630		3391
1631	my $coro; $coro = async {	3392	my $coro = &Coro::async ($cb);
1632	eval {
1633	$cb->();
1634	};
1635	warn $@ if $@;
1636	};
1637		3393
1638	$coro->on_destroy (sub {	3394	$coro->on_destroy (sub {
1639	delete $self->{_coro}{$coro+0};	3395	delete $self->{_coro}{$coro+0};
1640	});	3396	});
1641		3397
…		…
1643		3399
1644	$coro	3400	$coro
1645	}	3401	}
1646		3402
1647	cf::client->attach (	3403	cf::client->attach (
1648	on_destroy => sub {	3404	on_client_destroy => sub {
1649	my ($ns) = @_;	3405	my ($ns) = @_;
1650		3406
1651	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3407	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1652	},	3408	},
1653	);	3409	);
…		…
1668	our $safe = new Safe "safe";	3424	our $safe = new Safe "safe";
1669	our $safe_hole = new Safe::Hole;	3425	our $safe_hole = new Safe::Hole;
1670		3426
1671	$SIG{FPE} = 'IGNORE';	3427	$SIG{FPE} = 'IGNORE';
1672		3428
1673	$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	));
1674		3434
1675	# here we export the classes and methods available to script code	3435	# here we export the classes and methods available to script code
1676		3436
1677	=pod	3437	=pod
1678		3438
1679	The following fucntions and emthods are available within a safe environment:	3439	The following functions and methods are available within a safe environment:
1680		3440
1681	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
1682	cf::object::player player	3446	cf::object::player
1683	cf::player peaceful	3447	player
1684	cf::map trigger	3448
		3449	cf::player
		3450	peaceful
		3451
		3452	cf::map
		3453	trigger
1685		3454
1686	=cut	3455	=cut
1687		3456
1688	for (	3457	for (
1689	["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)],
1690	["cf::object::player" => qw(player)],	3461	["cf::object::player" => qw(player)],
1691	["cf::player" => qw(peaceful)],	3462	["cf::player" => qw(peaceful send_msg)],
1692	["cf::map" => qw(trigger)],	3463	["cf::map" => qw(trigger)],
1693	) {	3464	) {
1694	no strict 'refs';
1695	my ($pkg, @funs) = @$_;	3465	my ($pkg, @funs) = @$_;
1696	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3466	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1697	for @funs;	3467	for @funs;
1698	}	3468	}
1699		3469
…		…
1714		3484
1715	my $qcode = $code;	3485	my $qcode = $code;
1716	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3486	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1717	$qcode =~ s/\n/\\n/g;	3487	$qcode =~ s/\n/\\n/g;
1718		3488
		3489	%vars = (_dummy => 0) unless %vars;
		3490
		3491	my @res;
1719	local $_;	3492	local $_;
1720	local @safe::cf::_safe_eval_args = values %vars;
1721		3493
1722	my $eval =	3494	my $eval =
1723	"do {\n"	3495	"do {\n"
1724	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3496	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1725	. "#line 0 \"{$qcode}\"\n"	3497	. "#line 0 \"{$qcode}\"\n"
1726	. $code	3498	. $code
1727	. "\n}"	3499	. "\n}"
1728	;	3500	;
1729		3501
		3502	if ($CFG{safe_eval}) {
1730	sub_generation_inc;	3503	sub_generation_inc;
		3504	local @safe::cf::_safe_eval_args = values %vars;
1731	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3505	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1732	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	}
1733		3511
1734	if ($@) {	3512	if ($@) {
1735	warn "$@";	3513	warn "$@",
1736	warn "while executing safe code '$code'\n";	3514	"while executing safe code '$code'\n",
1737	warn "with arguments " . (join " ", %vars) . "\n";	3515	"with arguments " . (join " ", %vars) . "\n";
1738	}	3516	}
1739		3517
1740	wantarray ? @res : $res[0]	3518	wantarray ? @res : $res[0]
1741	}	3519	}
1742		3520
…		…
1756	=cut	3534	=cut
1757		3535
1758	sub register_script_function {	3536	sub register_script_function {
1759	my ($fun, $cb) = @_;	3537	my ($fun, $cb) = @_;
1760		3538
1761	no strict 'refs';	3539	$fun = "safe::$fun" if $CFG{safe_eval};
1762	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3540	*$fun = $safe_hole->wrap ($cb);
1763	}	3541	}
1764		3542
1765	=back	3543	=back
1766		3544
1767	=cut	3545	=cut
1768		3546
1769	#############################################################################	3547	#############################################################################
1770		3548	# the server's init and main functions
1771	=head2 EXTENSION DATABASE SUPPORT
1772
1773	Crossfire maintains a very simple database for extension use. It can
1774	currently store anything that can be serialised using Storable, which
1775	excludes objects.
1776
1777	The parameter C<$family> should best start with the name of the extension
1778	using it, it should be unique.
1779
1780	=over 4
1781
1782	=item $hashref = cf::db_get $family
1783
1784	Return a hashref for use by the extension C<$family>, which can be
1785	modified. After modifications, you have to call C<cf::db_dirty> or
1786	C<cf::db_sync>.
1787
1788	=item $value = cf::db_get $family => $key
1789
1790	Returns a single value from the database
1791
1792	=item cf::db_put $family => $hashref
1793
1794	Stores the given family hashref into the database. Updates are delayed, if
1795	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1796
1797	=item cf::db_put $family => $key => $value
1798
1799	Stores the given C<$value> in the family hash. Updates are delayed, if you
1800	want the data to be synced to disk immediately, use C<cf::db_sync>.
1801
1802	=item cf::db_dirty
1803
1804	Marks the database as dirty, to be updated at a later time.
1805
1806	=item cf::db_sync
1807
1808	Immediately write the database to disk I<if it is dirty>.
1809
1810	=cut
1811
1812	our $DB;
1813		3549
1814	{	3550	{
1815	my $path = cf::localdir . "/database.pst";	3551	package cf::face;
1816		3552
1817	sub db_load() {	3553	our %HASH; # hash => idx
1818	warn "loading database $path\n";#d# remove later	3554	our @DATA; # dynamically-created facedata, only faceste 0 used
1819	$DB = stat $path ? Storable::retrieve $path : { };	3555	our @FOFS; # file offset, if > 0
1820	}	3556	our @SIZE; # size of face, in octets
		3557	our @META; # meta hash of face, if any
		3558	our $DATAFH; # facedata filehandle
1821		3559
1822	my $pid;	3560	# internal api, not finalised
		3561	sub set {
		3562	my ($name, $type, $data) = @_;
1823		3563
1824	sub db_save() {	3564	my $idx = cf::face::find $name;
1825	warn "saving database $path\n";#d# remove later
1826	waitpid $pid, 0 if $pid;
1827	if (0 == ($pid = fork)) {
1828	$DB->{_meta}{version} = 1;
1829	Storable::nstore $DB, "$path~";
1830	rename "$path~", $path;
1831	cf::_exit 0 if defined $pid;
1832	}
1833	}
1834		3565
1835	my $dirty;	3566	if ($idx) {
1836		3567	delete $HASH{cf::face::get_csum $idx};
1837	sub db_sync() {
1838	db_save if $dirty;
1839	undef $dirty;
1840	}
1841
1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1843	db_sync;
1844	});
1845
1846	sub db_dirty() {
1847	$dirty = 1;
1848	$idle->start;
1849	}
1850
1851	sub db_get($;$) {
1852	@_ >= 2
1853	? $DB->{$_[0]}{$_[1]}
1854	: ($DB->{$_[0]} ||= { })
1855	}
1856
1857	sub db_put($$;$) {
1858	if (@_ >= 3) {
1859	$DB->{$_[0]}{$_[1]} = $_[2];
1860	} else {	3568	} else {
1861	$DB->{$_[0]} = $_[1];	3569	$idx = cf::face::alloc $name;
1862	}
1863	db_dirty;
1864	}
1865
1866	cf::global->attach (
1867	prio => 10000,
1868	on_cleanup => sub {
1869	db_sync;
1870	},	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]
		3751	);
		3752	}
		3753
		3754	sub reload_materials {
		3755	_reload_materials;
		3756	}
		3757
		3758	sub reload_regions {
		3759	# HACK to clear player env face cache, we need some signal framework
		3760	# for this (global event?)
		3761	%ext::player_env::MUSIC_FACE_CACHE = ();
		3762
		3763	load_resource_file "$MAPDIR/regions"
		3764	or die "unable to load regions file\n";
		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
		3794	sub reload_treasures {
		3795	load_resource_file "$DATADIR/treasures"
		3796	or die "unable to load treasurelists\n";
		3797	}
		3798
		3799	sub reload_sound {
		3800	trace "loading sound config from $DATADIR/sound\n";
		3801
		3802	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3803
		3804	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3805	my $sound = $soundconf->{compat}[$_]
		3806	or next;
		3807
		3808	my $face = cf::face::find "sound/$sound->[1]";
		3809	cf::sound::set $sound->[0] => $face;
		3810	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3811	}
		3812
		3813	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3814	my $face = cf::face::find "sound/$v";
		3815	cf::sound::set $k => $face;
		3816	}
		3817	}
		3818
		3819	sub reload_resources {
		3820	trace "reloading resource files...\n";
		3821
		3822	reload_materials;
		3823	reload_facedata;
		3824	reload_exp_table;
		3825	reload_sound;
		3826	reload_archetypes;
		3827	reload_regions;
		3828	reload_treasures;
		3829
		3830	trace "finished reloading resource files\n";
		3831	}
		3832
		3833	sub reload_config {
		3834	trace "reloading config file...\n";
		3835
		3836	my $config = load_file "$CONFDIR/config";
		3837	utf8::decode $config;
		3838	*CFG = decode_yaml $config;
		3839
		3840	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3841
		3842	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3843	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3844
		3845	if (exists $CFG{mlockall}) {
		3846	eval {
		3847	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3848	and die "WARNING: m(un)lockall failed: $!\n";
		3849	};
		3850	warn $@ if $@;
		3851	}
		3852	}
		3853
		3854	sub pidfile() {
		3855	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3856	or die "$PIDFILE: $!";
		3857	flock $fh, &Fcntl::LOCK_EX
		3858	or die "$PIDFILE: flock: $!";
		3859	$fh
		3860	}
		3861
		3862	# make sure only one server instance is running at any one time
		3863	sub atomic {
		3864	my $fh = pidfile;
		3865
		3866	my $pid = <$fh>;
		3867	kill 9, $pid if $pid > 0;
		3868
		3869	seek $fh, 0, 0;
		3870	print $fh $$;
		3871	}
		3872
		3873	sub main_loop {
		3874	trace "EV::loop starting\n";
		3875	if (1) {
		3876	EV::loop;
		3877	}
		3878	trace "EV::loop returned\n";
		3879	goto &main_loop unless $REALLY_UNLOOP;
		3880	}
		3881
		3882	sub main {
		3883	cf::init_globals; # initialise logging
		3884
		3885	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3886	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3887	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3888	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3889
		3890	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3891
		3892	# we must not ever block the main coroutine
		3893	$Coro::idle = sub {
		3894	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3895	(async {
		3896	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3897	EV::loop EV::LOOP_ONESHOT;
		3898	})->prio (Coro::PRIO_MAX);
1871	);	3899	};
		3900
		3901	evthread_start IO::AIO::poll_fileno;
		3902
		3903	cf::sync_job {
		3904	cf::incloader::init ();
		3905
		3906	db_init;
		3907
		3908	cf::init_anim;
		3909	cf::init_attackmess;
		3910	cf::init_dynamic;
		3911
		3912	cf::load_settings;
		3913
		3914	reload_resources;
		3915	reload_config;
		3916
		3917	cf::init_uuid;
		3918	cf::init_signals;
		3919	cf::init_skills;
		3920
		3921	cf::init_beforeplay;
		3922
		3923	atomic;
		3924
		3925	load_extensions;
		3926
		3927	utime time, time, $RUNTIMEFILE;
		3928
		3929	# no (long-running) fork's whatsoever before this point(!)
		3930	use POSIX ();
		3931	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3932
		3933	cf::_post_init 0;
		3934	};
		3935
		3936	cf::object::thawer::errors_are_fatal 0;
		3937	info "parse errors in files are no longer fatal from this point on.\n";
		3938
		3939	AE::postpone {
		3940	undef &main; # free gobs of memory :)
		3941	};
		3942
		3943	goto &main_loop;
1872	}	3944	}
1873		3945
1874	#############################################################################	3946	#############################################################################
1875	# the server's main()	3947	# initialisation and cleanup
1876		3948
1877	sub cfg_load {	3949	# install some emergency cleanup handlers
1878	open my $fh, "<:utf8", cf::confdir . "/config"	3950	BEGIN {
		3951	our %SIGWATCHER = ();
		3952	for my $signal (qw(INT HUP TERM)) {
		3953	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3954	cf::cleanup "SIG$signal";
		3955	};
		3956	}
		3957	}
		3958
		3959	sub write_runtime_sync {
		3960	my $t0 = AE::time;
		3961
		3962	# first touch the runtime file to show we are still running:
		3963	# the fsync below can take a very very long time.
		3964
		3965	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3966
		3967	my $guard = cf::lock_acquire "write_runtime";
		3968
		3969	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1879	or return;	3970	or return;
1880		3971
1881	local $/;	3972	my $value = $cf::RUNTIME + 90 + 10;
1882	*CFG = YAML::Syck::Load <$fh>;	3973	# 10 is the runtime save interval, for a monotonic clock
1883	}	3974	# 60 allows for the watchdog to kill the server.
1884		3975
1885	sub main {	3976	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1886	# we must not ever block the main coroutine	3977	and return;
1887	local $Coro::idle = sub {	3978
1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3979	# always fsync - this file is important
1889	(Coro::unblock_sub {	3980	aio_fsync $fh
1890	Event::one_event;	3981	and return;
		3982
		3983	# touch it again to show we are up-to-date
		3984	aio_utime $fh, undef, undef;
		3985
		3986	close $fh
		3987	or return;
		3988
		3989	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3990	and return;
		3991
		3992	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3993
		3994	1
		3995	}
		3996
		3997	our $uuid_lock;
		3998	our $uuid_skip;
		3999
		4000	sub write_uuid_sync($) {
		4001	$uuid_skip ||= $_[0];
		4002
		4003	return if $uuid_lock;
		4004	local $uuid_lock = 1;
		4005
		4006	my $uuid = "$LOCALDIR/uuid";
		4007
		4008	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4009	or return;
		4010
		4011	my $value = uuid_seq uuid_cur;
		4012
		4013	unless ($value) {
		4014	info "cowardly refusing to write zero uuid value!\n";
		4015	return;
		4016	}
		4017
		4018	my $value = uuid_str $value + $uuid_skip;
		4019	$uuid_skip = 0;
		4020
		4021	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4022	and return;
		4023
		4024	# always fsync - this file is important
		4025	aio_fsync $fh
		4026	and return;
		4027
		4028	close $fh
		4029	or return;
		4030
		4031	aio_rename "$uuid~", $uuid
		4032	and return;
		4033
		4034	trace "uuid file written ($value).\n";
		4035
		4036	1
		4037
		4038	}
		4039
		4040	sub write_uuid($$) {
		4041	my ($skip, $sync) = @_;
		4042
		4043	$sync ? write_uuid_sync $skip
		4044	: async { write_uuid_sync $skip };
		4045	}
		4046
		4047	sub emergency_save() {
		4048	my $freeze_guard = cf::freeze_mainloop;
		4049
		4050	info "emergency_perl_save: enter\n";
		4051
		4052	# this is a trade-off: we want to be very quick here, so
		4053	# save all maps without fsync, and later call a global sync
		4054	# (which in turn might be very very slow)
		4055	local $USE_FSYNC = 0;
		4056
		4057	cf::sync_job {
		4058	cf::write_runtime_sync; # external watchdog should not bark
		4059
		4060	# use a peculiar iteration method to avoid tripping on perl
		4061	# refcount bugs in for. also avoids problems with players
		4062	# and maps saved/destroyed asynchronously.
		4063	info "emergency_perl_save: begin player save\n";
		4064	for my $login (keys %cf::PLAYER) {
		4065	my $pl = $cf::PLAYER{$login} or next;
		4066	$pl->valid or next;
		4067	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4068	$pl->save;
		4069	}
		4070	info "emergency_perl_save: end player save\n";
		4071
		4072	cf::write_runtime_sync; # external watchdog should not bark
		4073
		4074	info "emergency_perl_save: begin map save\n";
		4075	for my $path (keys %cf::MAP) {
		4076	my $map = $cf::MAP{$path} or next;
		4077	$map->valid or next;
		4078	$map->save;
		4079	}
		4080	info "emergency_perl_save: end map save\n";
		4081
		4082	cf::write_runtime_sync; # external watchdog should not bark
		4083
		4084	info "emergency_perl_save: begin database checkpoint\n";
		4085	BDB::db_env_txn_checkpoint $DB_ENV;
		4086	info "emergency_perl_save: end database checkpoint\n";
		4087
		4088	info "emergency_perl_save: begin write uuid\n";
		4089	write_uuid_sync 1;
		4090	info "emergency_perl_save: end write uuid\n";
		4091
		4092	cf::write_runtime_sync; # external watchdog should not bark
		4093
		4094	trace "emergency_perl_save: syncing database to disk";
		4095	BDB::db_env_txn_checkpoint $DB_ENV;
		4096
		4097	info "emergency_perl_save: starting sync\n";
		4098	IO::AIO::aio_sync sub {
		4099	info "emergency_perl_save: finished sync\n";
1891	})->();	4100	};
		4101
		4102	cf::write_runtime_sync; # external watchdog should not bark
		4103
		4104	trace "emergency_perl_save: flushing outstanding aio requests";
		4105	while (IO::AIO::nreqs || BDB::nreqs) {
		4106	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4107	}
		4108
		4109	cf::write_runtime_sync; # external watchdog should not bark
1892	};	4110	};
1893		4111
1894	cfg_load;	4112	info "emergency_perl_save: leave\n";
1895	db_load;
1896	load_extensions;
1897	Event::loop;
1898	}	4113	}
1899		4114
1900	#############################################################################	4115	sub post_cleanup {
1901	# initialisation	4116	my ($make_core) = @_;
1902		4117
		4118	IO::AIO::flush;
		4119
		4120	error Carp::longmess "post_cleanup backtrace"
		4121	if $make_core;
		4122
		4123	my $fh = pidfile;
		4124	unlink $PIDFILE if <$fh> == $$;
		4125	}
		4126
		4127	# a safer delete_package, copied from Symbol
		4128	sub clear_package($) {
		4129	my $pkg = shift;
		4130
		4131	# expand to full symbol table name if needed
		4132	unless ($pkg =~ /^main::.*::$/) {
		4133	$pkg = "main$pkg" if $pkg =~ /^::/;
		4134	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4135	$pkg .= '::' unless $pkg =~ /::$/;
		4136	}
		4137
		4138	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4139	my $stem_symtab = *{$stem}{HASH};
		4140
		4141	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4142	or return;
		4143
		4144	# clear all symbols
		4145	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4146	for my $name (keys %$leaf_symtab) {
		4147	_gv_clear *{"$pkg$name"};
		4148	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4149	}
		4150	}
		4151
1903	sub reload() {	4152	sub do_reload_perl() {
1904	# can/must only be called in main	4153	# can/must only be called in main
1905	if ($Coro::current != $Coro::main) {	4154	unless (in_main) {
1906	warn "can only reload from main coroutine\n";	4155	error "can only reload from main coroutine";
1907	return;	4156	return;
1908	}	4157	}
1909		4158
1910	warn "reloading...";	4159	return if $RELOAD++;
1911		4160
1912	local $FREEZE = 1;	4161	my $t1 = AE::time;
		4162
		4163	while ($RELOAD) {
		4164	cf::get_slot 0.1, -1, "reload_perl";
		4165	info "perl_reload: reloading...";
		4166
		4167	trace "perl_reload: entering sync_job";
		4168
		4169	cf::sync_job {
1913	cf::emergency_save;	4170	#cf::emergency_save;
1914		4171
1915	eval {	4172	trace "perl_reload: cancelling all extension coros";
1916	# if anything goes wrong in here, we should simply crash as we already saved
1917
1918	# cancel all watchers
1919	for (Event::all_watchers) {
1920	$_->cancel if $_->data & WF_AUTOCANCEL;
1921	}
1922
1923	# cancel all extension coros
1924	$_->cancel for values %EXT_CORO;	4173	$_->cancel for values %EXT_CORO;
1925	%EXT_CORO = ();	4174	%EXT_CORO = ();
1926		4175
1927	# unload all extensions	4176	trace "perl_reload: removing commands";
1928	for (@exts) {	4177	%COMMAND = ();
1929	warn "unloading <$_>";
1930	unload_extension $_;
1931	}
1932		4178
1933	# unload all modules loaded from $LIBDIR	4179	trace "perl_reload: removing ext/exti commands";
1934	while (my ($k, $v) = each %INC) {	4180	%EXTCMD = ();
1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4181	%EXTICMD = ();
1936		4182
1937	warn "removing <$k>";	4183	trace "perl_reload: unloading/nuking all extensions";
1938	delete $INC{$k};	4184	for my $pkg (@EXTS) {
		4185	trace "... unloading $pkg";
1939		4186
1940	$k =~ s/\.pm$//;
1941	$k =~ s/\//::/g;
1942
1943	if (my $cb = $k->can ("unload_module")) {	4187	if (my $cb = $pkg->can ("unload")) {
		4188	eval {
1944	$cb->();	4189	$cb->($pkg);
		4190	1
		4191	} or error "$pkg unloaded, but with errors: $@";
		4192	}
		4193
		4194	trace "... clearing $pkg";
		4195	clear_package $pkg;
1945	}	4196	}
1946		4197
1947	Symbol::delete_package $k;	4198	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4199	while (my ($k, $v) = each %INC) {
		4200	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4201
		4202	trace "... unloading $k";
		4203	delete $INC{$k};
		4204
		4205	$k =~ s/\.pm$//;
		4206	$k =~ s/\//::/g;
		4207
		4208	if (my $cb = $k->can ("unload_module")) {
		4209	$cb->();
		4210	}
		4211
		4212	clear_package $k;
1948	}	4213	}
1949		4214
1950	# sync database to disk
1951	cf::db_sync;
1952	IO::AIO::flush;
1953
1954	# get rid of safe::, as good as possible	4215	trace "perl_reload: getting rid of safe::, as good as possible";
1955	Symbol::delete_package "safe::$_"	4216	clear_package "safe::$_"
1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4217	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1957		4218
1958	# remove register_script_function callbacks	4219	trace "perl_reload: unloading cf.pm \"a bit\"";
1959	# TODO
1960
1961	# unload cf.pm "a bit"
1962	delete $INC{"cf.pm"};	4220	delete $INC{"cf.pm"};
		4221	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1963		4222
1964	# don't, removes xs symbols, too,	4223	# don't, removes xs symbols, too,
1965	# and global variables created in xs	4224	# and global variables created in xs
1966	#Symbol::delete_package __PACKAGE__;	4225	#clear_package __PACKAGE__;
1967		4226
1968	# reload cf.pm	4227	info "perl_reload: unload completed, starting to reload now";
1969	warn "reloading cf.pm";	4228
		4229	trace "perl_reload: reloading cf.pm";
1970	require cf;	4230	require cf;
1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4231	cf::_connect_to_perl_1;
1972		4232
1973	# load config and database again	4233	trace "perl_reload: loading config and database again";
1974	cf::cfg_load;	4234	cf::reload_config;
1975	cf::db_load;
1976		4235
1977	# load extensions	4236	trace "perl_reload: loading extensions";
1978	warn "load extensions";
1979	cf::load_extensions;	4237	cf::load_extensions;
1980		4238
1981	# reattach attachments to objects	4239	if ($REATTACH_ON_RELOAD) {
1982	warn "reattach";	4240	trace "perl_reload: reattaching attachments to objects/players";
1983	_global_reattach;	4241	_global_reattach; # objects, sockets
		4242	trace "perl_reload: reattaching attachments to maps";
		4243	reattach $_ for values %MAP;
		4244	trace "perl_reload: reattaching attachments to players";
		4245	reattach $_ for values %PLAYER;
		4246	}
		4247
		4248	cf::_post_init 1;
		4249
		4250	trace "perl_reload: leaving sync_job";
		4251
		4252	1
		4253	} or do {
		4254	error $@;
		4255	cf::cleanup "perl_reload: error, exiting.";
		4256	};
		4257
		4258	--$RELOAD;
		4259	}
		4260
		4261	$t1 = AE::time - $t1;
		4262	info "perl_reload: completed in ${t1}s\n";
		4263	};
		4264
		4265	our $RELOAD_WATCHER; # used only during reload
		4266
		4267	sub reload_perl() {
		4268	# doing reload synchronously and two reloads happen back-to-back,
		4269	# coro crashes during coro_state_free->destroy here.
		4270
		4271	$RELOAD_WATCHER ||= cf::async {
		4272	Coro::AIO::aio_wait cache_extensions;
		4273
		4274	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4275	do_reload_perl;
		4276	undef $RELOAD_WATCHER;
		4277	};
1984	};	4278	};
1985
1986	if ($@) {
1987	warn $@;
1988	warn "error while reloading, exiting.";
1989	exit 1;
1990	}
1991
1992	warn "reloaded successfully";
1993	};
1994
1995	#############################################################################
1996
1997	unless ($LINK_MAP) {
1998	$LINK_MAP = cf::map::new;
1999
2000	$LINK_MAP->width (41);
2001	$LINK_MAP->height (41);
2002	$LINK_MAP->alloc;
2003	$LINK_MAP->path ("{link}");
2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2006
2007	# dirty hack because... archetypes are not yet loaded
2008	Event->timer (
2009	after => 2,
2010	cb => sub {
2011	$_[0]->w->cancel;
2012
2013	# provide some exits "home"
2014	my $exit = cf::object::new "exit";
2015
2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2019
2020	$LINK_MAP->insert ($exit->clone, 19, 19);
2021	$LINK_MAP->insert ($exit->clone, 19, 20);
2022	$LINK_MAP->insert ($exit->clone, 19, 21);
2023	$LINK_MAP->insert ($exit->clone, 20, 19);
2024	$LINK_MAP->insert ($exit->clone, 20, 21);
2025	$LINK_MAP->insert ($exit->clone, 21, 19);
2026	$LINK_MAP->insert ($exit->clone, 21, 20);
2027	$LINK_MAP->insert ($exit->clone, 21, 21);
2028
2029	$exit->destroy;
2030	});
2031
2032	$LINK_MAP->{deny_save} = 1;
2033	$LINK_MAP->{deny_reset} = 1;
2034
2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2036	}	4279	}
2037
2038	register "<global>", __PACKAGE__;
2039		4280
2040	register_command "reload" => sub {	4281	register_command "reload" => sub {
2041	my ($who, $arg) = @_;	4282	my ($who, $arg) = @_;
2042		4283
2043	if ($who->flag (FLAG_WIZ)) {	4284	if ($who->flag (FLAG_WIZ)) {
2044	$who->message ("start of reload.");
2045	reload;
2046	$who->message ("end of reload.");	4285	$who->message ("reloading server.");
		4286	async {
		4287	$Coro::current->{desc} = "perl_reload";
		4288	reload_perl;
		4289	};
2047	}	4290	}
2048	};	4291	};
2049		4292
2050	unshift @INC, $LIBDIR;	4293	#############################################################################
2051		4294
2052	$TICK_WATCHER = Event->timer (	4295	my $bug_warning = 0;
2053	reentrant => 0,
2054	prio => 0,
2055	at => $NEXT_TICK || $TICK,
2056	data => WF_AUTOCANCEL,
2057	cb => sub {
2058	unless ($FREEZE) {
2059	cf::server_tick; # one server iteration
2060	$RUNTIME += $TICK;
2061	}
2062		4296
2063	$NEXT_TICK += $TICK;	4297	sub wait_for_tick() {
		4298	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2064		4299
2065	# if we are delayed by four ticks or more, skip them all	4300	$WAIT_FOR_TICK->wait;
2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4301	}
2067		4302
2068	$TICK_WATCHER->at ($NEXT_TICK);	4303	sub wait_for_tick_begin() {
2069	$TICK_WATCHER->start;	4304	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4305
		4306	my $signal = new Coro::Signal;
		4307	push @WAIT_FOR_TICK_BEGIN, $signal;
		4308	$signal->wait;
		4309	}
		4310
		4311	sub tick {
		4312	if ($Coro::current != $Coro::main) {
		4313	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4314	unless ++$bug_warning > 10;
		4315	return;
2070	},	4316	}
2071	);
2072		4317
2073	IO::AIO::max_poll_time $TICK * 0.2;	4318	cf::one_tick; # one server iteration
2074		4319
2075	Event->io (	4320	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2076	fd => IO::AIO::poll_fileno,
2077	poll => 'r',
2078	prio => 5,
2079	data => WF_AUTOCANCEL,
2080	cb => \&IO::AIO::poll_cb,
2081	);
2082		4321
2083	Event->timer (	4322	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2084	data => WF_AUTOCANCEL,	4323	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2085	after => 0,	4324	Coro::async_pool {
2086	interval => 10,	4325	$Coro::current->{desc} = "runtime saver";
2087	cb => sub {
2088	(Coro::unblock_sub {
2089	write_runtime	4326	write_runtime_sync
2090	or warn "ERROR: unable to write runtime file: $!";	4327	or error "ERROR: unable to write runtime file: $!";
2091	})->();	4328	};
2092	},	4329	}
2093	);	4330
		4331	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4332	$sig->send;
		4333	}
		4334	$WAIT_FOR_TICK->broadcast;
		4335
		4336	$LOAD = ($NOW - $TICK_START) / $TICK;
		4337	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4338
		4339	if (0) {
		4340	if ($NEXT_TICK) {
		4341	my $jitter = $TICK_START - $NEXT_TICK;
		4342	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4343	debug "jitter $JITTER\n";#d#
		4344	}
		4345	}
		4346	}
		4347
		4348	{
		4349	# configure BDB
		4350	info "initialising database";
		4351
		4352	BDB::min_parallel 16;
		4353	BDB::max_poll_reqs $TICK * 0.1;
		4354	#$AnyEvent::BDB::WATCHER->priority (1);
		4355
		4356	unless ($DB_ENV) {
		4357	$DB_ENV = BDB::db_env_create;
		4358	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4359	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4360	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4361	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4362	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4363
		4364	cf::sync_job {
		4365	eval {
		4366	BDB::db_env_open
		4367	$DB_ENV,
		4368	$BDBDIR,
		4369	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4370	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4371	0666;
		4372
		4373	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4374	};
		4375
		4376	cf::cleanup "db_env_open(db): $@" if $@;
		4377	};
		4378	}
		4379
		4380	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4381	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4382	};
		4383	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4384	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4385	};
		4386	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4387	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4388	};
		4389
		4390	info "database initialised";
		4391	}
		4392
		4393	{
		4394	# configure IO::AIO
		4395
		4396	info "initialising aio";
		4397	IO::AIO::min_parallel 8;
		4398	IO::AIO::max_poll_time $TICK * 0.1;
		4399	undef $AnyEvent::AIO::WATCHER;
		4400	info "aio initialised";
		4401	}
		4402
		4403	our $_log_backtrace;
		4404	our $_log_backtrace_last;
		4405
		4406	sub _log_backtrace {
		4407	my ($msg, @addr) = @_;
		4408
		4409	$msg =~ s/\n$//;
		4410
		4411	if ($_log_backtrace_last eq $msg) {
		4412	LOG llevInfo, "[ABT] $msg\n";
		4413	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4414	# limit the # of concurrent backtraces
		4415	} elsif ($_log_backtrace < 2) {
		4416	$_log_backtrace_last = $msg;
		4417	++$_log_backtrace;
		4418	my $perl_bt = Carp::longmess $msg;
		4419	async {
		4420	$Coro::current->{desc} = "abt $msg";
		4421
		4422	my @bt = fork_call {
		4423	@addr = map { sprintf "%x", $_ } @addr;
		4424	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4425	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4426	or die "addr2line: $!";
		4427
		4428	my @funcs;
		4429	my @res = <$fh>;
		4430	chomp for @res;
		4431	while (@res) {
		4432	my ($func, $line) = splice @res, 0, 2, ();
		4433	push @funcs, "[$func] $line";
		4434	}
		4435
		4436	@funcs
		4437	};
		4438
		4439	LOG llevInfo, "[ABT] $perl_bt\n";
		4440	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4441	LOG llevInfo, "[ABT] $_\n" for @bt;
		4442	--$_log_backtrace;
		4443	};
		4444	} else {
		4445	LOG llevInfo, "[ABT] $msg\n";
		4446	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4447	}
		4448	}
		4449
		4450	# load additional modules
		4451	require "cf/$_.pm" for @EXTRA_MODULES;
		4452	cf::_connect_to_perl_2;
		4453
		4454	END { cf::emergency_save }
2094		4455
2095	1	4456	1
2096		4457

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