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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.599 by root, Sun Nov 11 04:29:11 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 $RANDOM_MAPS = cf::localdir . "/random";	155	our $JITTER; # average jitter
55	our %EXT_CORO;	156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
56		165
57	binmode STDOUT;	166	binmode STDOUT;
58	binmode STDERR;	167	binmode STDERR;
59		168
60	# read virtual server time, if available	169	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	171	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
65	}	174	}
66		175
67	mkdir cf::localdir;	176	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		177
73	# a special map that is always available	178	mkdir $_
74	our $LINK_MAP;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
75	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
76		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
77	#############################################################################	189	#############################################################################
78		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
79	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
80		203
81	=over 4	204	=over 4
82		205
83	=item $cf::UPTIME	206	=item $cf::UPTIME
84		207
85	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.
86		224
87	=item $cf::RUNTIME	225	=item $cf::RUNTIME
88		226
89	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
90	every server tick.	228	every server tick.
91		229
92	=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
93		233
94	The perl library directory, where extensions and cf-specific modules can	234	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		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
97	=item $cf::NOW	245	=item $cf::LOAD
98		246
99	The time of the last (current) server tick.	247	The raw value load value from the last tick.
100
101	=item $cf::TICK
102
103	The interval between server ticks, in seconds.
104		248
105	=item %cf::CFG	249	=item %cf::CFG
106		250
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	252	from wherever your confdir points to.
109		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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
110	=back	290	=back
111		291
112	=cut	292	=cut
113		293
114	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
115	*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 {
116	my $msg = join "", @_;	301	my $msg = join "", @_;
117	utf8::encode $msg;
118		302
119	$msg .= "\n"	303	$msg .= "\n"
120	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
121		305
122	LOG llevError, "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
123	};	307
124	}	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	};
125		324
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		332
133	# 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
134	# within the Safe compartment.	334	# within the Safe compartment.
135	for my $pkg (qw(	335	for my $pkg (qw(
136	cf::global cf::attachable	336	cf::global cf::attachable
137	cf::object cf::object::player	337	cf::object cf::object::player
138	cf::client cf::player	338	cf::client cf::player
139	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
140	cf::map cf::party cf::region	341	cf::party cf::region
141	)) {	342	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	344	}
145		345
146	$Event::DIED = sub {	346	$EV::DIED = sub {
147	warn "error in event callback: @_";	347	warn "error in event callback: $@";
148	};	348	};
149		349
150	my %ext_pkg;	350	#############################################################################
151	my @exts;	351
152	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
153		356
154	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
155		358
156	=over 4	359	=over 4
157		360
158	=cut	361	=item dumpval $ref
159		362
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
161		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
162	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
163		437
164	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
165		439
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
174		441
175	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
176		443
177	=cut	444	=cut
178		445
179	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		447
184	=item my $guard = cf::guard { BLOCK }	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
185		450
186	Run the given callback when the guard object gets destroyed (useful for	451	=item $ref = cf::decode_storable $scalar
187	coroutine cancellations).
188		452
189	You can call C<< ->cancel >> on the guard object to stop the block from	453	Same as Coro::Storable::thaw, so blocks.
190	being executed.
191		454
192	=cut	455	=cut
193		456
194	sub guard(&) {	457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		458
198	sub cf::guard::cancel {	459	=item $ref = cf::decode_yaml $scalar
199	${$_[0]} = sub { };
200	}
201		460
202	sub cf::guard::DESTROY {	461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
203	${$_[0]}->();	462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
204	}	511	}
205		512
206	=item cf::lock_wait $string	513	=item cf::lock_wait $string
207		514
208	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
209		516
210	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
211		518
212	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
215	returned.	522	returned.
216		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
217	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
219		529
220	=cut	530	=item $locked = cf::lock_active $string
221		531
222	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
223		537
224	sub lock_wait($) {	538	sub lock_wait($) {
225	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	540	}
233		541
234	sub lock_acquire($) {	542	sub lock_acquire($) {
235	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
236		545
237	# wait, to be sure we are not locked	546	sub lock_active($) {
238	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
		548	}
239		549
240	$LOCK{$key} = [];	550	sub freeze_mainloop {
		551	tick_inhibit_inc;
241		552
242	cf::guard {	553	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	554	}
244	$_->ready for @{ delete $LOCK{$key} };	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
245	}	623	}
		624	};
		625
		626	sub get_slot($;$$) {
		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	$sig->wait;
246	}	639	}
247		640
248	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
249		642
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	643	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	644	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		645	thing you are allowed to do is call C<prio> on it.
252		646
253	=cut	647	=cut
254		648
255	sub async(&) {	649	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		650
272	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
273		652
274	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
277		657
278	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
281	fast or be very important.	661	fast or be very important.
…		…
283	=cut	663	=cut
284		664
285	sub sync_job(&) {	665	sub sync_job(&) {
286	my ($job) = @_;	666	my ($job) = @_;
287		667
288	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
289	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
291		673
292	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	675
294	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
295		677
296	my $busy = 1;	678	my $busy = 1;
297	my @res;	679	my @res;
298		680
299	(Coro::async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	683	@res = eval { $job->() };
301	warn $@ if $@;	684	error $@ if $@;
302	undef $busy;	685	undef $busy;
303	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
304		687
305	while ($busy) {	688	while ($busy) {
		689	if (Coro::nready) {
306	Coro::cede_notself;	690	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
308	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
309		699
310	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
311	} else {	701	} else {
312	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
313		703
314	$job->()	704	$job->()
315	}	705	}
316	}	706	}
317		707
318	=item $coro = cf::coro { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
319		709
320	Creates and returns a new coro. This coro is automcatially being canceled	710	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	711	extension calling this is being unloaded.
322		712
323	=cut	713	=cut
324		714
325	sub coro(&) {	715	sub async_ext(&) {
326	my $cb = shift;	716	my $cb = shift;
327		717
328	my $coro = &cf::async ($cb);	718	my $coro = &Coro::async ($cb);
329		719
330	$coro->on_destroy (sub {	720	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	721	delete $EXT_CORO{$coro+0};
332	});	722	});
333	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
334		724
335	$coro	725	$coro
336	}	726	}
337		727
338	sub write_runtime {	728	=item fork_call { }, @args
339	my $runtime = cf::localdir . "/runtime";
340		729
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
342	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.
343		734
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		736
348	aio_fsync $fh	737	sub post_fork {
349	and return;	738	reset_signals;
		739	}
350		740
351	close $fh	741	sub fork_call(&@) {
352	or return;	742	my ($cb, @args) = @_;
353		743
354	aio_rename "$runtime~", $runtime	744	# we seemingly have to make a local copy of the whole thing,
355	and return;	745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
356		747
		748	my @res = Coro::Util::fork_eval {
		749	cf::post_fork;
		750	&$cb
		751	} @args;
		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
357	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = EV::time;
		907	my $data = $process->(\@data);
		908	my $t2 = EV::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
		920	}
		921
		922	=item cf::datalog type => key => value, ...
		923
		924	Log a datalog packet of the given type with the given key-value pairs.
		925
		926	=cut
		927
		928	sub datalog($@) {
		929	my ($type, %kv) = @_;
		930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	931	}
359		932
360	=back	933	=back
361		934
362	=cut	935	=cut
363		936
364	#############################################################################	937	#############################################################################
365		938
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
487		940
488	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
489	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
491		944
492	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	947	Deliantra).
495		948
496	=over 4	949	=over 4
497		950
498	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
499		952
…		…
543	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
544		997
545	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
547		1000
548	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
549	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
550		1003
551	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
552		1005
553	=over 4	1006	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	1066	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	1067	our @CB_MAP = ();
615		1068
616	my %attachment;	1069	my %attachment;
617		1070
		1071	sub cf::attachable::thawer_merge {
		1072	# simply override everything except _meta
		1073	local $_[0]{_meta};
		1074	%{$_[0]} = %{$_[1]};
		1075	}
		1076
618	sub _attach_cb($$$$) {	1077	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	1078	my ($registry, $event, $prio, $cb) = @_;
620		1079
621	use sort 'stable';	1080	use sort 'stable';
622		1081
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
657		1116
658	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		1121
663	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
665		1124
666	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
671		1130
672	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
673	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
674		1133
675	} elsif (ref $type) {	1134	} elsif (ref $type) {
676	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
677		1136
678	} else {	1137	} else {
679	shift @arg;	1138	shift @arg;
680	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
681	}	1140	}
682	}	1141	}
683	}	1142	}
684		1143
685	sub _object_attach {	1144	sub _object_attach {
…		…
695	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
696	}	1155	}
697		1156
698	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
699	} else {	1158	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
701	}	1160	}
702		1161
703	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
704	}	1163	}
705		1164
…		…
707	if (ref $_[0]) {	1166	if (ref $_[0]) {
708	_object_attach @_;	1167	_object_attach @_;
709	} else {	1168	} else {
710	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
711	}	1170	}
		1171	_recalc_want;
712	};	1172	};
713		1173
714	# all those should be optimised	1174	# all those should be optimised
715	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
720	reattach ($obj);	1180	reattach ($obj);
721	} else {	1181	} else {
722	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
723	}	1183	}
		1184	_recalc_want;
724	};	1185	};
725		1186
726	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
728		1189
…		…
743	";	1204	";
744	die if $@;	1205	die if $@;
745	}	1206	}
746		1207
747	our $override;	1208	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		1210
750	sub override {	1211	sub override {
751	$override = 1;	1212	$override = 1;
752	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
753	}	1214	}
754		1215
755	sub do_invoke {	1216	sub do_invoke {
756	my $event = shift;	1217	my $event = shift;
757	my $callbacks = shift;	1218	my $callbacks = shift;
758		1219
759	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
760		1221
761	local $override;	1222	local $override;
762		1223
763	for (@$callbacks) {	1224	for (@$callbacks) {
764	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
765		1226
766	if ($@) {	1227	if ($@) {
767	warn "$@";
768	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
769	override;	1229	override;
770	}	1230	}
771		1231
772	return 1 if $override;	1232	return 1 if $override;
773	}	1233	}
774		1234
775	0	1235	0
776	}	1236	}
777		1237
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1239
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1241
782	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
783		1243
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1247
788	=back	1248	=back
789		1249
790	=cut	1250	=cut
791		1251
792	#############################################################################	1252	#############################################################################
793	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
794		1296
795	sub reattach {	1297	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	1299	my ($obj) = @_;
		1300
		1301	# no longer needed after getting rid of delete_package?
		1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		1303
799	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
800		1305
801	@$registry = ();	1306	@$registry = ();
802		1307
…		…
807	for (@$attach) {	1312	for (@$attach) {
808	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
809	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
810	}	1315	}
811	} else {	1316	} else {
812	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
813	}	1318	}
814	}	1319	}
815	}	1320	}
816		1321
817	cf::attachable->attach (	1322	cf::attachable->attach (
818	prio => -1000000,	1323	prio => -1000000,
819	on_instantiate => sub {	1324	on_instantiate => sub {
820	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
821		1326
822	$data = from_json $data;	1327	$data = decode_json $data;
823		1328
824	for (@$data) {	1329	for (@$data) {
825	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
826		1331
827	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1348	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
845		1350
846	sync_job {	1351	sync_job {
847	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
850		1357
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1361	if ($cf::USE_FSYNC) {
		1362	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
854	aio_fsync $fh;	1363	aio_fsync $fh;
		1364	}
855	close $fh;	1365	aio_close $fh;
856		1366
857	if (@$objs) {	1367	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
		1372	if ($cf::USE_FSYNC) {
		1373	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
862	aio_fsync $fh;	1374	aio_fsync $fh;
		1375	}
863	close $fh;	1376	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
865	}	1378	}
866	} else {	1379	} else {
867	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
868	}	1381	}
869		1382
870	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1387	} else {
872	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
873	}	1389	}
874	} else {	1390	} else {
875	aio_unlink $filename;	1391	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
877	}	1393	}
878	}	1394	};
879	}	1395	}
880		1396
881	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
883		1399
…		…
895	or return;	1411	or return;
896		1412
897	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
899	or return;	1415	or return;
		1416
900	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
901	}	1419	}
902		1420
		1421	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
905	return ($data, $av);	1426	($data, $av)
906	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
907		1434
908	#############################################################################	1435	#############################################################################
909	# command handling &c	1436	# command handling &c
910		1437
911	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
912		1439
913	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
914	$name.	1441	$name.
915		1442
916	=cut	1443	=cut
…		…
922	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
923		1450
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1452	}
926		1453
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
928		1455
929	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
930		1461
931	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
932	called.
933		1463
934	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
935		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
936	sub register_extcmd {	1486	sub register_extcmd($$) {
937	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
938		1488
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1489	$EXTCMD{$name} = $cb;
943	}	1490	}
		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
944		1511
945	cf::player->attach (	1512	cf::player->attach (
946	on_command => sub {	1513	on_unknown_command => sub {
947	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
948		1515
949	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
950	or return;	1517	or return;
951		1518
…		…
956	cf::override;	1523	cf::override;
957	},	1524	},
958	on_extcmd => sub {	1525	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
960		1527
961	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1529
963	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1534	$cb->(
966	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
967	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
968	}	1551	}
		1552
969	} else {	1553	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1555	}
972		1556
973	cf::override;	1557	cf::override;
974	},	1558	},
975	);	1559	);
976		1560
977	sub register {	1561	# "readahead" all extensions
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1562	sub cache_extensions {
984	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
985		1564
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
987	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
988	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }
1026
1027	# remove commands
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}	1568	}
1036	}	1569	};
1037		1570
1038	# remove extcmds	1571	$grp
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1572	}
1040	delete $EXTCMD{$name};
1041	}
1042		1573
1043	if (my $cb = $pkg->can ("unload")) {	1574	sub _ext_cfg_reg($$$$) {
1044	eval {	1575	my ($rvar, $varname, $cfgname, $default) = @_;
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049		1576
1050	Symbol::delete_package $pkg;	1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1051	}	1583	}
1052		1584
1053	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
1054	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	1594	next unless -r $path;
1056	eval {	1595
1057	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
1058	1	1668	}
1059	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
1060	}	1681	};
1061	}	1682	}
1062		1683
1063	#############################################################################	1684	#############################################################################
1064	# load/save/clean perl data associated with a map
1065		1685
1066	*cf::mapsupport::on_clean = sub {	1686	=back
		1687
		1688	=head2 CORE EXTENSIONS
		1689
		1690	Functions and methods that extend core deliantra objects.
		1691
		1692	=cut
		1693
		1694	package cf::player;
		1695
		1696	use Coro::AIO;
		1697
		1698	=head3 cf::player
		1699
		1700	=over 4
		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
		1716	=item cf::player::find $login
		1717
		1718	Returns the given player object, loading it if necessary (might block).
		1719
		1720	=cut
		1721
		1722	sub playerdir($) {
		1723	"$PLAYERDIR/"
		1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1725	}
		1726
		1727	sub path($) {
		1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1729
		1730	(playerdir $login) . "/playerdata"
		1731	}
		1732
		1733	sub find_active($) {
		1734	$cf::PLAYER{$_[0]}
		1735	and $cf::PLAYER{$_[0]}->active
		1736	and $cf::PLAYER{$_[0]}
		1737	}
		1738
		1739	sub exists($) {
1067	my ($map) = @_;	1740	my ($login) = @_;
1068		1741
1069	my $path = $map->tmpname;	1742	$cf::PLAYER{$login}
1070	defined $path or return;	1743	or !aio_stat path $login
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}	1744	}
1083		1745
1084	# TODO: compatibility cruft, remove when no longer needed	1746	sub find($) {
		1747	return $cf::PLAYER{$_[0]} || do {
		1748	my $login = $_[0];
		1749
		1750	my $guard = cf::lock_acquire "user_find:$login";
		1751
		1752	$cf::PLAYER{$_[0]} || do {
		1753	# rename old playerfiles to new ones
		1754	#TODO: remove when no longer required
		1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1758	aio_unlink +(playerdir $login) . "/$login.pl";
		1759
		1760	my $f = new_from_file cf::object::thawer path $login
		1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
		1768	$cf::PLAYER{$login} = $pl
		1769	}
		1770	}
		1771	}
		1772
1085	cf::player->attach (	1773	cf::player->attach (
1086	on_load => sub {	1774	on_load => sub {
1087	my ($pl, $path) = @_;	1775	my ($pl, $path) = @_;
1088		1776
1089	for my $o (all_objects $pl->ob) {	1777	# restore slots saved in save, below
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1778	my $slots = delete $pl->{_slots};
1091	$o->set_ob_key_value ("_perl_data");
1092		1779
1093	%$o = %{ Storable::thaw pack "H*", $value };	1780	$pl->ob->current_weapon ($slots->[0]);
1094	}	1781	$pl->combat_ob ($slots->[1]);
1095	}	1782	$pl->ranged_ob ($slots->[2]);
1096	},	1783	},
1097	);	1784	);
1098		1785
1099	#############################################################################	1786	sub save($) {
		1787	my ($pl) = @_;
1100		1788
1101	=head2 CORE EXTENSIONS	1789	return if $pl->{deny_save};
1102		1790
1103	Functions and methods that extend core crossfire objects.	1791	my $path = path $pl;
		1792	my $guard = cf::lock_acquire "user_save:$path";
1104		1793
1105	=head3 cf::player	1794	return if $pl->{deny_save};
		1795
		1796	aio_mkdir playerdir $pl, 0770;
		1797	$pl->{last_save} = $cf::RUNTIME;
		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
		1804	$pl->save_pl ($path);
		1805	cf::cede_to_tick;
		1806	}
		1807
		1808	sub new($) {
		1809	my ($login) = @_;
		1810
		1811	my $self = create;
		1812
		1813	$self->ob->name ($login);
		1814	$self->{deny_save} = 1;
		1815
		1816	$cf::PLAYER{$login} = $self;
		1817
		1818	$self
		1819	}
		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
		1831	=item $pl->quit_character
		1832
		1833	Nukes the player without looking back. If logged in, the connection will
		1834	be destroyed. May block for a long time.
		1835
		1836	=cut
		1837
		1838	sub quit_character {
		1839	my ($pl) = @_;
		1840
		1841	my $name = $pl->ob->name;
		1842
		1843	$pl->{deny_save} = 1;
		1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1845
		1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
		1853	$pl->ns->destroy if $pl->ns;
		1854
		1855	my $path = playerdir $pl;
		1856	my $temp = "$path~$cf::RUNTIME~deleting~";
		1857	aio_rename $path, $temp;
		1858	delete $cf::PLAYER{$pl->ob->name};
		1859	$pl->destroy;
		1860
		1861	my $prefix = qr<^~\Q$name\E/>;
		1862
		1863	# nuke player maps
		1864	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1865
		1866	IO::AIO::aio_rmtree $temp;
		1867	}
		1868
		1869	=item $pl->kick
		1870
		1871	Kicks a player out of the game. This destroys the connection.
		1872
		1873	=cut
		1874
		1875	sub kick {
		1876	my ($pl, $kicker) = @_;
		1877
		1878	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1879	$pl->killer ("kicked");
		1880	$pl->ns->destroy;
		1881	}
		1882
		1883	=item cf::player::list_logins
		1884
		1885	Returns am arrayref of all valid playernames in the system, can take a
		1886	while and may block, so not sync_job-capable, ever.
		1887
		1888	=cut
		1889
		1890	sub list_logins {
		1891	my $dirs = aio_readdir $PLAYERDIR
		1892	or return [];
		1893
		1894	my @logins;
		1895
		1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
		1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1903	aio_read $fh, 0, 512, my $buf, 0 or next;
		1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
		1906
		1907	utf8::decode $login;
		1908	push @logins, $login;
		1909	}
		1910
		1911	\@logins
		1912	}
		1913
		1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
		1917
		1918	Returns an arrayref of map paths that are private for this
		1919	player. May block.
		1920
		1921	=cut
		1922
		1923	sub maps($) {
		1924	my ($pl) = @_;
		1925
		1926	$pl = ref $pl ? $pl->ob->name : $pl;
		1927
		1928	my $files = aio_readdir playerdir $pl
		1929	or return;
		1930
		1931	my @paths;
		1932
		1933	for (@$files) {
		1934	utf8::decode $_;
		1935	next if /\.(?:pl|pst)$/;
		1936	next unless /^$PATH_SEP/o;
		1937
		1938	push @paths, cf::map::normalise "~$pl/$_";
		1939	}
		1940
		1941	\@paths
		1942	}
		1943
		1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1945
		1946	Expand deliantra pod fragments into protocol xml.
		1947
		1948	=item $player->ext_msg ($type, @msg)
		1949
		1950	Sends an ext event to the client.
		1951
		1952	=cut
		1953
		1954	sub ext_msg($$@) {
		1955	my ($self, $type, @msg) = @_;
		1956
		1957	$self->ns->ext_msg ($type, @msg);
		1958	}
		1959
		1960	=head3 cf::region
1106		1961
1107	=over 4	1962	=over 4
1108		1963
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut	1964	=cut
1114		1965
1115	sub cf::player::exists($) {	1966	package cf::region;
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119		1967
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1968	=item cf::region::find_by_path $path
1121		1969
1122	Sends an ext reply to the player.	1970	Tries to decuce the likely region for a map knowing only its path.
1123		1971
1124	=cut	1972	=cut
1125		1973
1126	sub cf::player::ext_reply($$$%) {	1974	sub find_by_path($) {
1127	my ($self, $id, %msg) = @_;	1975	my ($path) = @_;
1128		1976
1129	$msg{msgid} = $id;	1977	$path =~ s/^~[^\/]*//; # skip ~login
1130		1978
1131	$self->send ("ext " . to_json \%msg);	1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
1132	}	1989	}
1133		1990
1134	=back	1991	=back
1135
1136		1992
1137	=head3 cf::map	1993	=head3 cf::map
1138		1994
1139	=over 4	1995	=over 4
1140		1996
…		…
1143	package cf::map;	1999	package cf::map;
1144		2000
1145	use Fcntl;	2001	use Fcntl;
1146	use Coro::AIO;	2002	use Coro::AIO;
1147		2003
		2004	use overload
		2005	'""' => \&as_string,
		2006	fallback => 1;
		2007
1148	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1150		2010
1151	sub generate_random_map {	2011	sub generate_random_map {
		2012	my ($self, $rmp) = @_;
		2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
		2016	$self->_create_random_map ($rmp);
		2017	}
		2018
		2019	=item cf::map->register ($regex, $prio)
		2020
		2021	Register a handler for the map path matching the given regex at the
		2022	givne priority (higher is better, built-in handlers have priority 0, the
		2023	default).
		2024
		2025	=cut
		2026
		2027	sub register {
		2028	my (undef, $regex, $prio) = @_;
		2029	my $pkg = caller;
		2030
		2031	push @{"$pkg\::ISA"}, __PACKAGE__;
		2032
		2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2034	}
		2035
		2036	# also paths starting with '/'
		2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2038
		2039	sub thawer_merge {
		2040	my ($self, $merge) = @_;
		2041
		2042	# we have to keep some variables in memory intact
		2043	local $self->{path};
		2044	local $self->{load_path};
		2045
		2046	$self->SUPER::thawer_merge ($merge);
		2047	}
		2048
		2049	sub normalise {
1152	my ($path, $rmp) = @_;	2050	my ($path, $base) = @_;
1153		2051
1154	# mit "rum" bekleckern, nicht	2052	$path = "$path"; # make sure it's a string
1155	cf::map::_create_random_map	2053
		2054	$path =~ s/\.map$//;
		2055
		2056	# map plan:
		2057	#
		2058	# /! non-realised random map exit (special hack!)
		2059	# {... are special paths that are not being touched
		2060	# ?xxx/... are special absolute paths
		2061	# ?random/... random maps
		2062	# /... normal maps
		2063	# ~user/... per-player map of a specific user
		2064
		2065	$path =~ s/$PATH_SEP/\//go;
		2066
		2067	# treat it as relative path if it starts with
		2068	# something that looks reasonable
		2069	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2070	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2071
		2072	$base =~ s{[^/]+/?$}{};
		2073	$path = "$base/$path";
		2074	}
		2075
		2076	for ($path) {
		2077	redo if s{/\.?/}{/};
		2078	redo if s{/[^/]+/\.\./}{/};
		2079	}
		2080
1156	$path,	2081	$path
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})
1168	}	2082	}
1169		2083
1170	# and all this just because we cannot iterate over	2084	sub new_from_path {
1171	# all maps in C++...	2085	my (undef, $path, $base) = @_;
1172	sub change_all_map_light {	2086
		2087	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2088
		2089	$path = normalise $path, $base;
		2090
		2091	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2092	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2093	my $self = bless cf::map::new, $pkg;
		2094	$self->{path} = $path; $self->path ($path);
		2095	$self->init; # pass $1 etc.
		2096	return $self;
		2097	}
		2098	}
		2099
		2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2101	()
		2102	}
		2103
		2104	# may re-bless or do other evil things
		2105	sub init {
1173	my ($change) = @_;	2106	my ($self) = @_;
1174		2107
1175	$_->change_map_light ($change)	2108	$self
1176	for grep $_->outdoor, values %cf::MAP;
1177	}	2109	}
1178		2110
		2111	sub as_string {
		2112	my ($self) = @_;
		2113
		2114	"$self->{path}"
		2115	}
		2116
		2117	# the displayed name, this is a one way mapping
		2118	sub visible_name {
		2119	&as_string
		2120	}
		2121
		2122	# the original (read-only) location
		2123	sub load_path {
		2124	my ($self) = @_;
		2125
		2126	"$MAPDIR/$self->{path}.map"
		2127	}
		2128
		2129	# the temporary/swap location
		2130	sub save_path {
		2131	my ($self) = @_;
		2132
		2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2134	"$TMPDIR/$path.map"
		2135	}
		2136
		2137	# the unique path, undef == no special unique path
		2138	sub uniq_path {
		2139	my ($self) = @_;
		2140
		2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2142	"$UNIQUEDIR/$path"
		2143	}
		2144
		2145	sub decay_objects {
		2146	my ($self) = @_;
		2147
		2148	return if $self->{deny_reset};
		2149
		2150	$self->do_decay_objects;
		2151	}
		2152
		2153	sub unlink_save {
		2154	my ($self) = @_;
		2155
		2156	utf8::encode (my $save = $self->save_path);
		2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2158	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2159	}
		2160
1179	sub try_load_header($) {	2161	sub load_header_from($) {
1180	my ($path) = @_;	2162	my ($self, $path) = @_;
1181		2163
1182	utf8::encode $path;	2164	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1184	or return;	2166	or return;
1185		2167
1186	my $map = cf::map::new	2168	$self->_load_header ($f)
1187	or return;	2169	or return;
1188		2170
1189	$map->load_header ($path)	2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
		2174	$self->{load_path} = $path;
		2175
		2176	1
		2177	}
		2178
		2179	# used to laod the header of an original map
		2180	sub load_header_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->load_header_from ($self->load_path)
		2184	}
		2185
		2186	# used to laod the header of an instantiated map
		2187	sub load_header_temp {
		2188	my ($self) = @_;
		2189
		2190	$self->load_header_from ($self->save_path)
		2191	}
		2192
		2193	# called after loading the header from an instantiated map
		2194	sub prepare_temp {
		2195	my ($self) = @_;
		2196
		2197	$self->last_access ((delete $self->{last_access})
		2198	|| $cf::RUNTIME); #d#
		2199	# safety
		2200	$self->{instantiate_time} = $cf::RUNTIME
		2201	if $self->{instantiate_time} > $cf::RUNTIME;
		2202	}
		2203
		2204	# called after loading the header from an original map
		2205	sub prepare_orig {
		2206	my ($self) = @_;
		2207
		2208	$self->{load_original} = 1;
		2209	$self->{instantiate_time} = $cf::RUNTIME;
		2210	$self->last_access ($cf::RUNTIME);
		2211	$self->instantiate;
		2212	}
		2213
		2214	sub load_header {
		2215	my ($self) = @_;
		2216
		2217	if ($self->load_header_temp) {
		2218	$self->prepare_temp;
		2219	} else {
		2220	$self->load_header_orig
1190	or return;	2221	or return;
		2222	$self->prepare_orig;
		2223	}
1191		2224
1192	$map->{load_path} = $path;	2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
1193		2227
1194	$map	2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
		2231	1
1195	}	2232	}
1196		2233
1197	sub find;	2234	sub find;
1198	sub find {	2235	sub find {
1199	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1200		2237
1201	#warn "find<$path,$origin>\n";#d#	2238	cf::cede_to_tick;
1202		2239
1203	$path = new cf::path $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1204	my $key = $path->as_string;
1205		2241
1206	cf::lock_wait "map_find:$key";	2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1210		2244
1211	# do it the slow way	2245	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	2246	my $map = new_from_path cf::map $path
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	2247	or return;
1230		2248
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1243		2250
1244	Coro::cede;	2251	$map->load_header
		2252	or return;
1245		2253
1246	if ($map->should_reset) {	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2255	# doing this can freeze the server in a sync job, obviously
		2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1247	$map->reset;	2259	$map->reset;
1248	undef $guard;
1249	$map = find $path	2260	return find $path;
1250	or return;
1251	}	2261	}
1252		2262
1253	$cf::MAP{$key} = $map	2263	$cf::MAP{$path} = $map
1254	}	2264	}
1255	}	2265	}
		2266
		2267	sub pre_load { }
		2268	#sub post_load { } # XS
1256		2269
1257	sub load {	2270	sub load {
1258	my ($self) = @_;	2271	my ($self) = @_;
1259		2272
		2273	local $self->{deny_reset} = 1; # loading can take a long time
		2274
1260	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2278	my $guard = cf::lock_acquire "map_data:$path";
1262		2279
1263	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1264		2282
1265	$self->in_memory (cf::MAP_LOADING);
1266
1267	$self->alloc;	2283	$self->alloc;
1268	$self->load_objects ($self->{load_path}, 1)	2284
		2285	$self->pre_load;
		2286	cf::cede_to_tick;
		2287
		2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1269	or return;	2292	or return;
1270		2293
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1272	if delete $self->{load_original};	2295	if delete $self->{load_original};
1273		2296
1274	if (my $uniq = $path->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	2298	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1277	$self->clear_unique_items;	2301	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1279	}	2306	}
1280	}
1281		2307
1282	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1283		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1284	# now do the right thing for maps	2317	# now do the right thing for maps
1285	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	2320	unless $self->difficulty;
1297	$self->activate;	2321	cf::cede_to_tick;
		2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
		2333	}
		2334
		2335	$self->post_load;
		2336
1298	}	2337	1
		2338	}
1299		2339
1300	Coro::cede;	2340	# customize the map for a given player, i.e.
		2341	# return the _real_ map. used by e.g. per-player
		2342	# maps to change the path to ~playername/mappath
		2343	sub customise_for {
		2344	my ($self, $ob) = @_;
1301		2345
1302	$self->in_memory (cf::MAP_IN_MEMORY);	2346	return find "~" . $ob->name . "/" . $self->{path}
		2347	if $self->per_player;
		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
		2352	$self
1303	}	2353	}
1304		2354
1305	sub find_sync {	2355	sub find_sync {
1306	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1307		2357
1308	cf::sync_job { cf::map::find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1309	}	2363	}
1310		2364
1311	sub do_load_sync {	2365	sub do_load_sync {
1312	my ($map) = @_;	2366	my ($map) = @_;
1313		2367
1314	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
		2373	}
		2374
		2375	our %MAP_PREFETCH;
		2376	our $MAP_PREFETCHER = undef;
		2377
		2378	sub find_async {
		2379	my ($path, $origin, $load) = @_;
		2380
		2381	$path = normalise $path, $origin;
		2382
		2383	if (my $map = $cf::MAP{$path}) {
		2384	return $map if !$load || $map->linkable;
		2385	}
		2386
		2387	$MAP_PREFETCH{$path} |= $load;
		2388
		2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
		2392	while (%MAP_PREFETCH) {
		2393	while (my ($k, $v) = each %MAP_PREFETCH) {
		2394	if (my $map = find $k) {
		2395	$map->load if $v;
		2396	}
		2397
		2398	delete $MAP_PREFETCH{$k};
		2399	}
		2400	}
		2401	undef $MAP_PREFETCHER;
		2402	};
		2403	$MAP_PREFETCHER->prio (6);
		2404
		2405	()
		2406	}
		2407
		2408	# common code, used by both ->save and ->swapout
		2409	sub _save {
		2410	my ($self) = @_;
		2411
		2412	$self->{last_save} = $cf::RUNTIME;
		2413
		2414	return unless $self->dirty;
		2415
		2416	my $save = $self->save_path; utf8::encode $save;
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->{load_path} = $save;
		2420
		2421	return if $self->{deny_save};
		2422
		2423	local $self->{last_access} = $self->last_access;#d#
		2424
		2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
		2427	$_->contr->save for $self->players;
		2428	};
		2429
		2430	cf::get_slot 0.02;
		2431
		2432	if ($uniq) {
		2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2435	} else {
		2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2437	}
1315	}	2438	}
1316		2439
1317	sub save {	2440	sub save {
1318	my ($self) = @_;	2441	my ($self) = @_;
1319		2442
1320	$self->{last_save} = $cf::RUNTIME;	2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
1321		2444
1322	return unless $self->dirty;	2445	$self->_save;
1323
1324	my $save = $self->{path}->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1326
1327	$self->{load_path} = $save;
1328
1329	return if $self->{deny_save};
1330
1331	local $self->{last_access} = $self->last_access;#d#
1332
1333	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}
1339	}	2446	}
1340		2447
1341	sub swap_out {	2448	sub swap_out {
1342	my ($self) = @_;	2449	my ($self) = @_;
1343		2450
1344	# save first because save cedes	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1345	$self->save;
1346		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1347	return if $self->players;	2455	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};
1350		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1351	$self->clear;	2466	$self->clear;
1352	$self->in_memory (cf::MAP_SWAPPED);
1353	}	2467	}
1354		2468
1355	sub reset_at {	2469	sub reset_at {
1356	my ($self) = @_;	2470	my ($self) = @_;
1357		2471
1358	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1361		2474
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		2477
…		…
1369	my ($self) = @_;	2482	my ($self) = @_;
1370		2483
1371	$self->reset_at <= $cf::RUNTIME	2484	$self->reset_at <= $cf::RUNTIME
1372	}	2485	}
1373		2486
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	2487	sub reset {
1396	my ($self) = @_;	2488	my ($self) = @_;
1397		2489
		2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2491
1398	return if $self->players;	2492	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		2493
1401	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
		2495
		2496	$self->state (cf::MAP_SWAPPED);
		2497
		2498	# need to save uniques path
		2499	unless ($self->{deny_save}) {
		2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2501
		2502	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2503	if $uniq;
		2504	}
1402		2505
1403	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1404		2507
		2508	$self->deactivate;
1405	$_->clear_links_to ($self) for values %cf::MAP;	2509	$_->clear_links_to ($self) for values %cf::MAP;
		2510	$self->clear;
1406		2511
1407	$self->unlink_save;	2512	$self->unlink_save;
1408	$self->destroy;	2513	$self->destroy;
1409	}	2514	}
1410		2515
1411	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1412		2517
1413	sub nuke {	2518	sub nuke {
1414	my ($self) = @_;	2519	my ($self) = @_;
1415		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
		2524	delete $cf::MAP{$self->path};
		2525
		2526	$self->unlink_save;
		2527
		2528	bless $self, "cf::map::wrap";
		2529	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2533
		2534	$cf::MAP{$self->path} = $self;
		2535	}
		2536
1419	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
1420	}	2538	}
1421		2539
1422	sub customise_for {	2540	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2541
1425	if ($map->per_player) {	2542	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
1427	}	2548	[
1428		2549	map {
1429	$map	2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
1430	}	2556	}
1431		2557
1432	sub emergency_save {	2558	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2559
1435	warn "enter emergency map save\n";	2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
1436		2562
1437	cf::sync_job {	2563	=cut
1438	warn "begin emergency map save\n";	2564
1439	$_->save for values %cf::MAP;	2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
		2574	}
		2575
		2576	=item cf::map::unique_maps
		2577
		2578	Returns an arrayref of paths of all shared maps that have
		2579	instantiated unique items. May block.
		2580
		2581	=cut
		2582
		2583	sub unique_maps() {
		2584	[
		2585	map {
		2586	utf8::decode $_;
		2587	s/\.map$//; # TODO future compatibility hack
		2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2589	? ()
		2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
		2592	]
		2593	}
		2594
		2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
1440	};	2622	}
1441		2623
1442	warn "end emergency map save\n";	2624	\@maps
		2625	}
		2626
		2627	=back
		2628
		2629	=head3 cf::object
		2630
		2631	=cut
		2632
		2633	package cf::object;
		2634
		2635	=over 4
		2636
		2637	=item $ob->inv_recursive
		2638
		2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
		2641
		2642	=cut
		2643
		2644	sub inv_recursive_;
		2645	sub inv_recursive_ {
		2646	map { $_, inv_recursive_ $_->inv } @_
		2647	}
		2648
		2649	sub inv_recursive {
		2650	inv_recursive_ inv $_[0]
		2651	}
		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
1443	}	2679	}
1444		2680
1445	package cf;	2681	package cf;
1446		2682
1447	=back	2683	=back
1448
1449		2684
1450	=head3 cf::object::player	2685	=head3 cf::object::player
1451		2686
1452	=over 4	2687	=over 4
1453		2688
…		…
1456	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1457	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1458	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1459		2694
1460	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1461		2710
1462	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1463	# with dialog boxes.	2712	# with dialog boxes.
1464	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1465	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1467		2716
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2718
1470	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1472	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1475	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1476	}	2744	}
1477		2745
1478	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1479		2747
1480	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1493		2761
1494	=item $player_object->enter_link	2762	=item $player_object->enter_link
1495		2763
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2765
1498	The player should be reaosnably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1499	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
		2770
		2771	Will never block.
1500		2772
1501	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1502		2774
1503	Moves the player out of the specila link map onto the given map. If the	2775	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2776	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2777	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2778	fails, to the emergency map position.
1507		2779
1508	Might block.	2780	Might block.
1509		2781
1510	=cut	2782	=cut
		2783
		2784	sub link_map {
		2785	unless ($LINK_MAP) {
		2786	$LINK_MAP = cf::map::find "{link}"
		2787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2788	$LINK_MAP->load;
		2789	}
		2790
		2791	$LINK_MAP
		2792	}
1511		2793
1512	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2795	my ($self) = @_;
1514		2796
1515	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1516		2798
1517	return if $self->map == $LINK_MAP;	2799	++$self->{_link_recursion};
		2800
		2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2802
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1521		2805
1522	$self->enter_map ($LINK_MAP, 20, 20);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1523	}	2807	}
1524		2808
1525	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1527		2813
1528	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1529		2815
1530	unless ($map) {	2816	unless ($map) {
1531	# restore original map position	2817	# restore original map position
…		…
1542	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1543	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1544		2830
1545	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1548		2834
1549	$map->load;	2835	$map->load;
1550		2836
		2837	return unless $self->contr->active;
		2838
		2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2840	if ($self->enter_map ($map, $x, $y)) {
		2841	# entering was successful
		2842	delete $self->{_link_recursion};
		2843	# only activate afterwards, to support waiting in hooks
1551	$self->activate_recursive;	2844	$self->activate_recursive;
1552	$self->enter_map ($map, $x, $y);
1553	}
1554
1555	cf::player->attach (
1556	on_logout => sub {
1557	my ($pl) = @_;
1558
1559	# abort map switching before logout
1560	if ($pl->ob->{_link_pos}) {
1561	cf::sync_job {
1562	$pl->ob->leave_link
1563	};
1564	}
1565	},	2845	}
1566	on_login => sub {
1567	my ($pl) = @_;
1568		2846
1569	# try to abort aborted map switching on player login :)	2847	}
1570	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582		2848
1583	=item $player_object->goto_map ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1584		2850
1585	=cut	2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
1586		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
		2860	=cut
		2861
		2862	our $GOTOGEN;
		2863
1587	sub cf::object::player::goto_map {	2864	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
		2866
		2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2875
1590	$self->enter_link;	2876	$self->enter_link;
1591		2877
1592	(cf::async {	2878	(async {
1593	$path = new cf::path $path;	2879	$Coro::current->{desc} = "player::goto $path $x $y";
1594		2880
1595	my $map = cf::map::find $path->as_string;	2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
		2900	my $map = eval {
		2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
1597		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2906	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
1602		2909
		2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
		2916	}
		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1604	})->prio (1);	2924	})->prio (1);
1605	}	2925	}
1606		2926
1607	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1608		2928
…		…
1610		2930
1611	sub parse_random_map_params {	2931	sub parse_random_map_params {
1612	my ($spec) = @_;	2932	my ($spec) = @_;
1613		2933
1614	my $rmp = { # defaults	2934	my $rmp = { # defaults
1615	xsize => 10,	2935	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2936	ysize => (cf::rndm 15, 40),
		2937	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2938	#layout => string,
1617	};	2939	};
1618		2940
1619	for (split /\n/, $spec) {	2941	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2942	my ($k, $v) = split /\s+/, $_, 2;
1621		2943
…		…
1633	# that depends on the exit object	2955	# that depends on the exit object
1634		2956
1635	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
1636		2958
1637	if ($exit->map) {	2959	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2960	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1642	}	2966	}
1643		2967
1644	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1645		2969
1646	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1647	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
		2972	my $meta = "$RANDOMDIR/$md5.meta";
1648		2973
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
		2976	undef $fh;
		2977	aio_rename "$meta~", $meta;
1651		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1652	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1654	}	2985	}
1655	}	2986	}
1656		2987
1657	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
1659		2990
1660	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1661		2992
1662	$self->enter_link;	2993	$self->enter_link;
1663		2994
1664	(cf::async {	2995	(async {
1665	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1666	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
1667	prepare_random_map $exit	3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
1668	if $exit->slaying eq "/!";	3015	$map = $exit->slaying;
1669		3016
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3017	} elsif ($slaying eq '!up') {
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
1672		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
		3028	$self->goto ($map, $x, $y);
		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1673	1;	3034	1
1674	}) {	3035	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1676	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	3038	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1679		3040
1680	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
1681	$self->leave_link;	3042	$self->leave_link;
1682	}	3043	}
1683	})->prio (1);	3044	})->prio (1);
1684	}	3045	}
1685		3046
…		…
1696		3057
1697	sub cf::client::send_drawinfo {	3058	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	3059	my ($self, $text, $flags) = @_;
1699		3060
1700	utf8::encode $text;	3061	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	3063	}
1703		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
		3252	=item $client->ext_msg ($type, @msg)
		3253
		3254	Sends an ext event to the client.
		3255
		3256	=cut
		3257
		3258	sub cf::client::ext_msg($$@) {
		3259	my ($self, $type, @msg) = @_;
		3260
		3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3262	}
1704		3263
1705	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
1706		3265
1707	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		3269
1711	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	3271	become reliable at some point in the future.
1713		3272
1714	=cut	3273	=cut
1715		3274
1716	sub cf::client::query {	3275	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	3284	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		3286
1728	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
1730	}	3291	}
1731		3292
1732	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
1733	on_reply => sub {	3299	on_reply => sub {
1734	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
1735		3301
1736	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
1737	# get handled first	3303	# get handled first
1738	my $queue = delete $ns->{query_queue}	3304	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	3305	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		3306
1741	(shift @$queue)->[1]->($msg);	3307	(shift @$queue)->[1]->($msg);
		3308	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		3309
1743	push @{ $ns->{query_queue} }, @$queue;	3310	push @{ $ns->{query_queue} }, @$queue;
1744		3311
1745	if (@{ $ns->{query_queue} } == @$queue) {	3312	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	3313	if (@$queue) {
…		…
1748	} else {	3315	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	3317	}
1751	}	3318	}
1752	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
1753	);	3353	);
1754		3354
1755	=item $client->coro (\&cb)	3355	=item $client->async (\&cb)
1756		3356
1757	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	3358	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	3359	or loss of connection).
1760		3360
1761	=cut	3361	=cut
1762		3362
1763	sub cf::client::coro {	3363	sub cf::client::async {
1764	my ($self, $cb) = @_;	3364	my ($self, $cb) = @_;
1765		3365
1766	my $coro = &cf::async ($cb);	3366	my $coro = &Coro::async ($cb);
1767		3367
1768	$coro->on_destroy (sub {	3368	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	3369	delete $self->{_coro}{$coro+0};
1770	});	3370	});
1771		3371
…		…
1773		3373
1774	$coro	3374	$coro
1775	}	3375	}
1776		3376
1777	cf::client->attach (	3377	cf::client->attach (
1778	on_destroy => sub {	3378	on_client_destroy => sub {
1779	my ($ns) = @_;	3379	my ($ns) = @_;
1780		3380
1781	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1782	},	3382	},
1783	);	3383	);
…		…
1798	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
1799	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
1800		3400
1801	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
1802		3402
1803	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
1804		3408
1805	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
1806		3410
1807	=pod	3411	=pod
1808		3412
1809	The following fucntions and emthods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
1810		3414
1811	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
1812	cf::object::player player	3420	cf::object::player
1813	cf::player peaceful	3421	player
1814	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
1815		3428
1816	=cut	3429	=cut
1817		3430
1818	for (	3431	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
1820	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
1822	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
1823	) {	3438	) {
1824	no strict 'refs';
1825	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
1826	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1827	for @funs;	3441	for @funs;
1828	}	3442	}
1829		3443
…		…
1844		3458
1845	my $qcode = $code;	3459	my $qcode = $code;
1846	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1847	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
1848		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
1849	local $_;	3466	local $_;
1850	local @safe::cf::_safe_eval_args = values %vars;
1851		3467
1852	my $eval =	3468	my $eval =
1853	"do {\n"	3469	"do {\n"
1854	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1855	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
1856	. $code	3472	. $code
1857	. "\n}"	3473	. "\n}"
1858	;	3474	;
1859		3475
		3476	if ($CFG{safe_eval}) {
1860	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
1861	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1862	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
1863		3485
1864	if ($@) {	3486	if ($@) {
1865	warn "$@";	3487	warn "$@",
1866	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
1867	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
1868	}	3490	}
1869		3491
1870	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
1871	}	3493	}
1872		3494
…		…
1886	=cut	3508	=cut
1887		3509
1888	sub register_script_function {	3510	sub register_script_function {
1889	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
1890		3512
1891	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
1892	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
1893	}	3515	}
1894		3516
1895	=back	3517	=back
1896		3518
1897	=cut	3519	=cut
1898		3520
1899	#############################################################################	3521	#############################################################################
		3522	# the server's init and main functions
1900		3523
1901	=head2 EXTENSION DATABASE SUPPORT	3524	our %FACEHASH; # hash => idx, #d# HACK for http server
		3525	our @FACEDATA; # dynamically-created facedata
1902		3526
1903	Crossfire maintains a very simple database for extension use. It can	3527	# internal api, not fianlised
1904	currently store anything that can be serialised using Storable, which	3528	sub set_face {
1905	excludes objects.	3529	my ($name, $type, $data) = @_;
1906		3530
1907	The parameter C<$family> should best start with the name of the extension	3531	my $idx = cf::face::find $name;
1908	using it, it should be unique.
1909		3532
1910	=over 4	3533	if ($idx) {
1911		3534	delete $FACEHASH{cf::face::get_chksum $idx};
1912	=item $hashref = cf::db_get $family	3535	} else {
1913		3536	$idx = cf::face::alloc $name;
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key
1919
1920	Returns a single value from the database
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}	3537	}
1950		3538
1951	my $pid;	3539	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
1952		3540
1953	sub db_save() {	3541	cf::face::set_type $idx, $type;
1954	waitpid $pid, 0 if $pid;	3542	cf::face::set_data $idx, 0, (length $data), 0, $hash;
1955	if (0 == ($pid = fork)) {	3543	cf::face::set_meta $idx, $type & 1 ? undef : undef;
1956	$DB->{_meta}{version} = 1;	3544
1957	Storable::nstore $DB, "$path~";	3545	# we need to destroy the SV itself, not just overwrite,
1958	rename "$path~", $path;	3546	# as a running ix might hold a reference to it.
1959	cf::_exit 0 if defined $pid;	3547	# delete achieves that.
		3548	delete $FACEDATA[$idx];
		3549	$FACEDATA[$idx] = $data;
		3550	$FACEHASH{$hash} = $idx;#d#
		3551
		3552	$idx
		3553	}
		3554
		3555	our $FACEDATA; # facedata filehandle
		3556
		3557	sub _face_get_data($$$$) {
		3558	my ($idx, $size, $fofs, $cb) = @_;
		3559
		3560	if (defined $FACEDATA[$idx]) {
		3561	$cb->($FACEDATA[$idx]);
		3562	} elsif ($fofs) {
		3563	my $buf;
		3564	IO::AIO::aio_read $FACEDATA, $fofs, $size, $buf, 0, sub {
		3565	if ($_[0] == $size) {
		3566	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3567	$cb->($buf);
		3568	} else {
		3569	cf::error "INTERNAL ERROR: unable to read facedata for face $idx ($size, $fofs), ignoring request.";
		3570	}
1960	}	3571	};
		3572	} else {
		3573	cf::error "requested facedata for unknown face $idx ($size, $fofs), ignoring.";
1961	}	3574	}
		3575	}
1962		3576
1963	my $dirty;	3577	# rather ineffient
		3578	sub cf::face::get_data($;$) {
		3579	my ($idx, $faceset) = @_;
1964		3580
1965	sub db_sync() {	3581	my $size = cf::face::get_size $idx, $faceset;
1966	db_save if $dirty;	3582	my $fofs = cf::face::get_fofs $idx, $faceset;
1967	undef $dirty;
1968	}
1969		3583
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	3584	_face_get_data $idx, $size, $fofs, Coro::rouse_cb;
1971	db_sync;	3585	Coro::rouse_wait
		3586	}
		3587
		3588	sub cf::face::ix {
		3589	my ($ns, $idx, $pri, $size, $fofs) = @_;
		3590
		3591	_face_get_data $idx, $size, $fofs, sub {
		3592	$ns->ix_send ($idx, $pri, $_[0]);
1972	});	3593	};
		3594	}
1973		3595
1974	sub db_dirty() {	3596	sub load_facedata($) {
1975	$dirty = 1;	3597	my ($path) = @_;
1976	$idle->start;	3598
		3599	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3600
		3601	trace "loading facedata from $path\n";
		3602
		3603	my $facedata = decode_storable load_file "$path/faceinfo";
		3604
		3605	$facedata->{version} == 2
		3606	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3607
		3608	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3609	or cf::cleanup "$path/facedata: $!, cnanot proceed.";
		3610
		3611	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3612
		3613	# BEGIN ATOMIC
		3614	# from here on, everything must be atomic - no thread switch allowed
		3615	my $t1 = EV::time;
		3616
1977	}	3617	{
		3618	my $faces = $facedata->{faceinfo};
1978		3619
1979	sub db_get($;$) {	3620	for my $face (sort keys %$faces) {
1980	@_ >= 2	3621	my $info = $faces->{$face};
1981	? $DB->{$_[0]}{$_[1]}	3622	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		3623
1985	sub db_put($$;$) {	3624	cf::face::set_visibility $idx, $info->{visibility};
1986	if (@_ >= 3) {	3625	cf::face::set_magicmap $idx, $info->{magicmap};
1987	$DB->{$_[0]}{$_[1]} = $_[2];	3626	cf::face::set_data $idx, 0, $info->{size32}, $info->{fofs32}, $info->{hash32};
1988	} else {	3627	cf::face::set_data $idx, 1, $info->{size64}, $info->{fofs64}, $info->{hash64};
1989	$DB->{$_[0]} = $_[1];	3628	#cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1990	}	3629	$FACEHASH{$info->{hash64}} = $idx;#d#
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	3630	}
1999	);
2000	}
2001		3631
2002	#############################################################################	3632	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	3633	next unless $info->{smooth};
2004		3634
2005	sub cfg_load {	3635	my $idx = cf::face::find $face
2006	open my $fh, "<:utf8", cf::confdir . "/config"	3636	or next;
2007	or return;
2008		3637
2009	local $/;	3638	if (my $smooth = cf::face::find $info->{smooth}) {
2010	*CFG = YAML::Syck::Load <$fh>;	3639	cf::face::set_smooth $idx, $smooth;
		3640	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3641	} else {
		3642	error "smooth face '$info->{smooth}' not found for face '$face'";
		3643	}
		3644	}
		3645	}
2011		3646
		3647	{
		3648	my $anims = $facedata->{animinfo};
		3649
		3650	while (my ($anim, $info) = each %$anims) {
		3651	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3652	}
		3653
		3654	cf::anim::invalidate_all; # d'oh
		3655	}
		3656
		3657	{
		3658	my $res = $facedata->{resource};
		3659
		3660	while (my ($name, $info) = each %$res) {
		3661	if (defined (my $type = $info->{type})) {
		3662	# TODO: different hash - must free and use new index, or cache ixface data queue
		3663	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3664
		3665	cf::face::set_type $idx, $type;
		3666	cf::face::set_data $idx, 0, $info->{size}, $info->{fofs}, $info->{hash};
		3667	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3668	$FACEHASH{$info->{hash}} = $idx;#d#
		3669	} else {
		3670	# $RESOURCE{$name} = $info; # unused
		3671	}
		3672	}
		3673	}
		3674
		3675	($fh, $FACEDATA) = ($FACEDATA, $fh);
		3676
		3677	# HACK to clear player env face cache, we need some signal framework
		3678	# for this (global event?)
		3679	%ext::player_env::MUSIC_FACE_CACHE = ();
		3680
		3681	# END ATOMIC
		3682
		3683	cf::debug "facedata atomic update time ", EV::time - $t1;
		3684
		3685	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3686
		3687	aio_close $fh if $fh; # close old facedata
		3688
		3689	1
		3690	}
		3691
		3692	register_exticmd fx_want => sub {
		3693	my ($ns, $want) = @_;
		3694
		3695	while (my ($k, $v) = each %$want) {
		3696	$ns->fx_want ($k, $v);
		3697	}
		3698	};
		3699
		3700	sub load_resource_file($) {
		3701	my $guard = lock_acquire "load_resource_file";
		3702
		3703	my $status = load_resource_file_ $_[0];
		3704	get_slot 0.1, 100;
		3705	cf::arch::commit_load;
		3706
		3707	$status
		3708	}
		3709
		3710	sub reload_exp_table {
		3711	_reload_exp_table;
		3712
		3713	set_face "res/exp_table" => FT_RSRC,
		3714	JSON::XS->new->utf8->canonical->encode (
		3715	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3716	);
		3717	}
		3718
		3719	sub reload_materials {
		3720	_reload_materials;
		3721	}
		3722
		3723	sub reload_regions {
		3724	# HACK to clear player env face cache, we need some signal framework
		3725	# for this (global event?)
		3726	%ext::player_env::MUSIC_FACE_CACHE = ();
		3727
		3728	load_resource_file "$MAPDIR/regions"
		3729	or die "unable to load regions file\n";
		3730
		3731	for (cf::region::list) {
		3732	$_->{match} = qr/$_->{match}/
		3733	if exists $_->{match};
		3734	}
		3735	}
		3736
		3737	sub reload_facedata {
		3738	load_facedata $DATADIR
		3739	or die "unable to load facedata\n";
		3740	}
		3741
		3742	sub reload_archetypes {
		3743	load_resource_file "$DATADIR/archetypes"
		3744	or die "unable to load archetypes\n";
		3745
		3746	set_face "res/skill_info" => FT_RSRC,
		3747	JSON::XS->new->utf8->canonical->encode (
		3748	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3749	);
		3750	set_face "res/spell_paths" => FT_RSRC,
		3751	JSON::XS->new->utf8->canonical->encode (
		3752	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3753	);
		3754	}
		3755
		3756	sub reload_treasures {
		3757	load_resource_file "$DATADIR/treasures"
		3758	or die "unable to load treasurelists\n";
		3759	}
		3760
		3761	sub reload_sound {
		3762	trace "loading sound config from $DATADIR/sound\n";
		3763
		3764	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3765
		3766	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3767	my $sound = $soundconf->{compat}[$_]
		3768	or next;
		3769
		3770	my $face = cf::face::find "sound/$sound->[1]";
		3771	cf::sound::set $sound->[0] => $face;
		3772	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3773	}
		3774
		3775	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3776	my $face = cf::face::find "sound/$v";
		3777	cf::sound::set $k => $face;
		3778	}
		3779	}
		3780
		3781	sub reload_resources {
		3782	trace "reloading resource files...\n";
		3783
		3784	reload_materials;
		3785	reload_facedata;
		3786	reload_exp_table;
		3787	reload_sound;
		3788	reload_archetypes;
		3789	reload_regions;
		3790	reload_treasures;
		3791
		3792	trace "finished reloading resource files\n";
		3793	}
		3794
		3795	sub reload_config {
		3796	trace "reloading config file...\n";
		3797
		3798	my $config = load_file "$CONFDIR/config";
		3799	utf8::decode $config;
		3800	*CFG = decode_yaml $config;
		3801
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3802	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3803
		3804	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3805	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2013		3806
2014	if (exists $CFG{mlockall}) {	3807	if (exists $CFG{mlockall}) {
2015	eval {	3808	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	3809	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	3810	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	3811	};
2019	warn $@ if $@;	3812	warn $@ if $@;
2020	}	3813	}
2021	}	3814	}
2022		3815
		3816	sub pidfile() {
		3817	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3818	or die "$PIDFILE: $!";
		3819	flock $fh, &Fcntl::LOCK_EX
		3820	or die "$PIDFILE: flock: $!";
		3821	$fh
		3822	}
		3823
		3824	# make sure only one server instance is running at any one time
		3825	sub atomic {
		3826	my $fh = pidfile;
		3827
		3828	my $pid = <$fh>;
		3829	kill 9, $pid if $pid > 0;
		3830
		3831	seek $fh, 0, 0;
		3832	print $fh $$;
		3833	}
		3834
		3835	sub main_loop {
		3836	trace "EV::loop starting\n";
		3837	if (1) {
		3838	EV::loop;
		3839	}
		3840	trace "EV::loop returned\n";
		3841	goto &main_loop unless $REALLY_UNLOOP;
		3842	}
		3843
2023	sub main {	3844	sub main {
		3845	cf::init_globals; # initialise logging
		3846
		3847	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3848	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3849	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3850	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3851
		3852	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3853
2024	# we must not ever block the main coroutine	3854	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	3855	$Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3856	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	3857	(async {
2028	Event::one_event;	3858	$Coro::current->{desc} = "IDLE BUG HANDLER";
2029	})->();	3859	EV::loop EV::LOOP_ONESHOT;
		3860	})->prio (Coro::PRIO_MAX);
2030	};	3861	};
2031		3862
2032	cfg_load;	3863	evthread_start IO::AIO::poll_fileno;
2033	db_load;	3864
		3865	cf::sync_job {
		3866	cf::incloader::init ();
		3867
		3868	db_init;
		3869
		3870	cf::init_anim;
		3871	cf::init_attackmess;
		3872	cf::init_dynamic;
		3873
		3874	cf::load_settings;
		3875
		3876	reload_resources;
		3877	reload_config;
		3878
		3879	cf::init_uuid;
		3880	cf::init_signals;
		3881	cf::init_skills;
		3882
		3883	cf::init_beforeplay;
		3884
		3885	atomic;
		3886
2034	load_extensions;	3887	load_extensions;
2035	Event::loop;	3888
		3889	utime time, time, $RUNTIMEFILE;
		3890
		3891	# no (long-running) fork's whatsoever before this point(!)
		3892	use POSIX ();
		3893	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3894
		3895	cf::_post_init 0;
		3896	};
		3897
		3898	cf::object::thawer::errors_are_fatal 0;
		3899	info "parse errors in files are no longer fatal from this point on.\n";
		3900
		3901	AE::postpone {
		3902	undef &main; # free gobs of memory :)
		3903	};
		3904
		3905	goto &main_loop;
2036	}	3906	}
2037		3907
2038	#############################################################################	3908	#############################################################################
2039	# initialisation	3909	# initialisation and cleanup
2040		3910
		3911	# install some emergency cleanup handlers
		3912	BEGIN {
		3913	our %SIGWATCHER = ();
		3914	for my $signal (qw(INT HUP TERM)) {
		3915	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3916	cf::cleanup "SIG$signal";
		3917	};
		3918	}
		3919	}
		3920
		3921	sub write_runtime_sync {
		3922	my $t0 = AE::time;
		3923
		3924	# first touch the runtime file to show we are still running:
		3925	# the fsync below can take a very very long time.
		3926
		3927	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3928
		3929	my $guard = cf::lock_acquire "write_runtime";
		3930
		3931	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3932	or return;
		3933
		3934	my $value = $cf::RUNTIME + 90 + 10;
		3935	# 10 is the runtime save interval, for a monotonic clock
		3936	# 60 allows for the watchdog to kill the server.
		3937
		3938	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3939	and return;
		3940
		3941	# always fsync - this file is important
		3942	aio_fsync $fh
		3943	and return;
		3944
		3945	# touch it again to show we are up-to-date
		3946	aio_utime $fh, undef, undef;
		3947
		3948	close $fh
		3949	or return;
		3950
		3951	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3952	and return;
		3953
		3954	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3955
		3956	1
		3957	}
		3958
		3959	our $uuid_lock;
		3960	our $uuid_skip;
		3961
		3962	sub write_uuid_sync($) {
		3963	$uuid_skip ||= $_[0];
		3964
		3965	return if $uuid_lock;
		3966	local $uuid_lock = 1;
		3967
		3968	my $uuid = "$LOCALDIR/uuid";
		3969
		3970	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3971	or return;
		3972
		3973	my $value = uuid_seq uuid_cur;
		3974
		3975	unless ($value) {
		3976	info "cowardly refusing to write zero uuid value!\n";
		3977	return;
		3978	}
		3979
		3980	my $value = uuid_str $value + $uuid_skip;
		3981	$uuid_skip = 0;
		3982
		3983	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3984	and return;
		3985
		3986	# always fsync - this file is important
		3987	aio_fsync $fh
		3988	and return;
		3989
		3990	close $fh
		3991	or return;
		3992
		3993	aio_rename "$uuid~", $uuid
		3994	and return;
		3995
		3996	trace "uuid file written ($value).\n";
		3997
		3998	1
		3999
		4000	}
		4001
		4002	sub write_uuid($$) {
		4003	my ($skip, $sync) = @_;
		4004
		4005	$sync ? write_uuid_sync $skip
		4006	: async { write_uuid_sync $skip };
		4007	}
		4008
		4009	sub emergency_save() {
		4010	my $freeze_guard = cf::freeze_mainloop;
		4011
		4012	info "emergency_perl_save: enter\n";
		4013
		4014	# this is a trade-off: we want to be very quick here, so
		4015	# save all maps without fsync, and later call a global sync
		4016	# (which in turn might be very very slow)
		4017	local $USE_FSYNC = 0;
		4018
		4019	cf::sync_job {
		4020	cf::write_runtime_sync; # external watchdog should not bark
		4021
		4022	# use a peculiar iteration method to avoid tripping on perl
		4023	# refcount bugs in for. also avoids problems with players
		4024	# and maps saved/destroyed asynchronously.
		4025	info "emergency_perl_save: begin player save\n";
		4026	for my $login (keys %cf::PLAYER) {
		4027	my $pl = $cf::PLAYER{$login} or next;
		4028	$pl->valid or next;
		4029	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4030	$pl->save;
		4031	}
		4032	info "emergency_perl_save: end player save\n";
		4033
		4034	cf::write_runtime_sync; # external watchdog should not bark
		4035
		4036	info "emergency_perl_save: begin map save\n";
		4037	for my $path (keys %cf::MAP) {
		4038	my $map = $cf::MAP{$path} or next;
		4039	$map->valid or next;
		4040	$map->save;
		4041	}
		4042	info "emergency_perl_save: end map save\n";
		4043
		4044	cf::write_runtime_sync; # external watchdog should not bark
		4045
		4046	info "emergency_perl_save: begin database checkpoint\n";
		4047	BDB::db_env_txn_checkpoint $DB_ENV;
		4048	info "emergency_perl_save: end database checkpoint\n";
		4049
		4050	info "emergency_perl_save: begin write uuid\n";
		4051	write_uuid_sync 1;
		4052	info "emergency_perl_save: end write uuid\n";
		4053
		4054	cf::write_runtime_sync; # external watchdog should not bark
		4055
		4056	trace "emergency_perl_save: syncing database to disk";
		4057	BDB::db_env_txn_checkpoint $DB_ENV;
		4058
		4059	info "emergency_perl_save: starting sync\n";
		4060	IO::AIO::aio_sync sub {
		4061	info "emergency_perl_save: finished sync\n";
		4062	};
		4063
		4064	cf::write_runtime_sync; # external watchdog should not bark
		4065
		4066	trace "emergency_perl_save: flushing outstanding aio requests";
		4067	while (IO::AIO::nreqs || BDB::nreqs) {
		4068	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4069	}
		4070
		4071	cf::write_runtime_sync; # external watchdog should not bark
		4072	};
		4073
		4074	info "emergency_perl_save: leave\n";
		4075	}
		4076
		4077	sub post_cleanup {
		4078	my ($make_core) = @_;
		4079
		4080	IO::AIO::flush;
		4081
		4082	error Carp::longmess "post_cleanup backtrace"
		4083	if $make_core;
		4084
		4085	my $fh = pidfile;
		4086	unlink $PIDFILE if <$fh> == $$;
		4087	}
		4088
		4089	# a safer delete_package, copied from Symbol
		4090	sub clear_package($) {
		4091	my $pkg = shift;
		4092
		4093	# expand to full symbol table name if needed
		4094	unless ($pkg =~ /^main::.*::$/) {
		4095	$pkg = "main$pkg" if $pkg =~ /^::/;
		4096	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4097	$pkg .= '::' unless $pkg =~ /::$/;
		4098	}
		4099
		4100	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4101	my $stem_symtab = *{$stem}{HASH};
		4102
		4103	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4104	or return;
		4105
		4106	# clear all symbols
		4107	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4108	for my $name (keys %$leaf_symtab) {
		4109	_gv_clear *{"$pkg$name"};
		4110	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4111	}
		4112	}
		4113
2041	sub reload() {	4114	sub do_reload_perl() {
2042	# can/must only be called in main	4115	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	4116	unless (in_main) {
2044	warn "can only reload from main coroutine\n";	4117	error "can only reload from main coroutine";
2045	return;	4118	return;
2046	}	4119	}
2047		4120
2048	warn "reloading...";	4121	return if $RELOAD++;
2049		4122
2050	my $guard = freeze_mainloop;	4123	my $t1 = AE::time;
		4124
		4125	while ($RELOAD) {
		4126	cf::get_slot 0.1, -1, "reload_perl";
		4127	info "perl_reload: reloading...";
		4128
		4129	trace "perl_reload: entering sync_job";
		4130
		4131	cf::sync_job {
2051	cf::emergency_save;	4132	#cf::emergency_save;
2052		4133
2053	eval {	4134	trace "perl_reload: cancelling all extension coros";
2054	# if anything goes wrong in here, we should simply crash as we already saved
2055
2056	# cancel all watchers
2057	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}
2060
2061	# cancel all extension coros
2062	$_->cancel for values %EXT_CORO;	4135	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	4136	%EXT_CORO = ();
2064		4137
2065	# unload all extensions	4138	trace "perl_reload: removing commands";
2066	for (@exts) {	4139	%COMMAND = ();
2067	warn "unloading <$_>";
2068	unload_extension $_;
2069	}
2070		4140
2071	# unload all modules loaded from $LIBDIR	4141	trace "perl_reload: removing ext/exti commands";
2072	while (my ($k, $v) = each %INC) {	4142	%EXTCMD = ();
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4143	%EXTICMD = ();
2074		4144
2075	warn "removing <$k>";	4145	trace "perl_reload: unloading/nuking all extensions";
2076	delete $INC{$k};	4146	for my $pkg (@EXTS) {
		4147	trace "... unloading $pkg";
2077		4148
2078	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;
2080
2081	if (my $cb = $k->can ("unload_module")) {	4149	if (my $cb = $pkg->can ("unload")) {
		4150	eval {
2082	$cb->();	4151	$cb->($pkg);
		4152	1
		4153	} or error "$pkg unloaded, but with errors: $@";
		4154	}
		4155
		4156	trace "... clearing $pkg";
		4157	clear_package $pkg;
2083	}	4158	}
2084		4159
2085	Symbol::delete_package $k;	4160	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4161	while (my ($k, $v) = each %INC) {
		4162	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4163
		4164	trace "... unloading $k";
		4165	delete $INC{$k};
		4166
		4167	$k =~ s/\.pm$//;
		4168	$k =~ s/\//::/g;
		4169
		4170	if (my $cb = $k->can ("unload_module")) {
		4171	$cb->();
		4172	}
		4173
		4174	clear_package $k;
2086	}	4175	}
2087		4176
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	4177	trace "perl_reload: getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	4178	clear_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		4180
2096	# remove register_script_function callbacks	4181	trace "perl_reload: unloading cf.pm \"a bit\"";
2097	# TODO
2098
2099	# unload cf.pm "a bit"
2100	delete $INC{"cf.pm"};	4182	delete $INC{"cf.pm"};
		4183	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2101		4184
2102	# don't, removes xs symbols, too,	4185	# don't, removes xs symbols, too,
2103	# and global variables created in xs	4186	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	4187	#clear_package __PACKAGE__;
2105		4188
2106	# reload cf.pm	4189	info "perl_reload: unload completed, starting to reload now";
2107	warn "reloading cf.pm";	4190
		4191	trace "perl_reload: reloading cf.pm";
2108	require cf;	4192	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4193	cf::_connect_to_perl_1;
2110		4194
2111	# load config and database again	4195	trace "perl_reload: loading config and database again";
2112	cf::cfg_load;	4196	cf::reload_config;
2113	cf::db_load;
2114		4197
2115	# load extensions	4198	trace "perl_reload: loading extensions";
2116	warn "load extensions";
2117	cf::load_extensions;	4199	cf::load_extensions;
2118		4200
2119	# reattach attachments to objects	4201	if ($REATTACH_ON_RELOAD) {
2120	warn "reattach";	4202	trace "perl_reload: reattaching attachments to objects/players";
2121	_global_reattach;	4203	_global_reattach; # objects, sockets
		4204	trace "perl_reload: reattaching attachments to maps";
		4205	reattach $_ for values %MAP;
		4206	trace "perl_reload: reattaching attachments to players";
		4207	reattach $_ for values %PLAYER;
		4208	}
		4209
		4210	cf::_post_init 1;
		4211
		4212	trace "perl_reload: leaving sync_job";
		4213
		4214	1
		4215	} or do {
		4216	error $@;
		4217	cf::cleanup "perl_reload: error, exiting.";
		4218	};
		4219
		4220	--$RELOAD;
		4221	}
		4222
		4223	$t1 = AE::time - $t1;
		4224	info "perl_reload: completed in ${t1}s\n";
		4225	};
		4226
		4227	our $RELOAD_WATCHER; # used only during reload
		4228
		4229	sub reload_perl() {
		4230	# doing reload synchronously and two reloads happen back-to-back,
		4231	# coro crashes during coro_state_free->destroy here.
		4232
		4233	$RELOAD_WATCHER ||= cf::async {
		4234	Coro::AIO::aio_wait cache_extensions;
		4235
		4236	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4237	do_reload_perl;
		4238	undef $RELOAD_WATCHER;
		4239	};
2122	};	4240	};
2123
2124	if ($@) {
2125	warn $@;
2126	warn "error while reloading, exiting.";
2127	exit 1;
2128	}
2129
2130	warn "reloaded successfully";
2131	};
2132
2133	#############################################################################
2134
2135	unless ($LINK_MAP) {
2136	$LINK_MAP = cf::map::new;
2137
2138	$LINK_MAP->width (41);
2139	$LINK_MAP->height (41);
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,
2148	cb => sub {
2149	$_[0]->w->cancel;
2150
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});
2169
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	4241	}
2175
2176	register "<global>", __PACKAGE__;
2177		4242
2178	register_command "reload" => sub {	4243	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	4244	my ($who, $arg) = @_;
2180		4245
2181	if ($who->flag (FLAG_WIZ)) {	4246	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	4247	$who->message ("reloading server.");
		4248	async {
		4249	$Coro::current->{desc} = "perl_reload";
		4250	reload_perl;
		4251	};
2185	}	4252	}
2186	};	4253	};
2187		4254
2188	unshift @INC, $LIBDIR;	4255	#############################################################################
2189		4256
2190	$TICK_WATCHER = Event->timer (	4257	my $bug_warning = 0;
2191	reentrant => 0,
2192	prio => 0,
2193	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,
2195	cb => sub {
2196	cf::server_tick; # one server iteration
2197	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;
2199		4258
2200	# if we are delayed by four ticks or more, skip them all	4259	sub wait_for_tick() {
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4260	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2202		4261
2203	$TICK_WATCHER->at ($NEXT_TICK);	4262	$WAIT_FOR_TICK->wait;
2204	$TICK_WATCHER->start;	4263	}
		4264
		4265	sub wait_for_tick_begin() {
		4266	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4267
		4268	my $signal = new Coro::Signal;
		4269	push @WAIT_FOR_TICK_BEGIN, $signal;
		4270	$signal->wait;
		4271	}
		4272
		4273	sub tick {
		4274	if ($Coro::current != $Coro::main) {
		4275	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4276	unless ++$bug_warning > 10;
		4277	return;
2205	},	4278	}
2206	);
2207		4279
2208	IO::AIO::max_poll_time $TICK * 0.2;	4280	cf::one_tick; # one server iteration
2209		4281
2210	Event->io (	4282	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2211	fd => IO::AIO::poll_fileno,
2212	poll => 'r',
2213	prio => 5,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217		4283
2218	Event->timer (	4284	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2219	data => WF_AUTOCANCEL,	4285	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2220	after => 0,	4286	Coro::async_pool {
2221	interval => 10,	4287	$Coro::current->{desc} = "runtime saver";
2222	cb => sub {
2223	(Coro::unblock_sub {
2224	write_runtime	4288	write_runtime_sync
2225	or warn "ERROR: unable to write runtime file: $!";	4289	or error "ERROR: unable to write runtime file: $!";
2226	})->();	4290	};
2227	},	4291	}
2228	);	4292
		4293	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4294	$sig->send;
		4295	}
		4296	$WAIT_FOR_TICK->broadcast;
		4297
		4298	$LOAD = ($NOW - $TICK_START) / $TICK;
		4299	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4300
		4301	if (0) {
		4302	if ($NEXT_TICK) {
		4303	my $jitter = $TICK_START - $NEXT_TICK;
		4304	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4305	debug "jitter $JITTER\n";#d#
		4306	}
		4307	}
		4308	}
		4309
		4310	{
		4311	# configure BDB
		4312	info "initialising database";
		4313
		4314	BDB::min_parallel 16;
		4315	BDB::max_poll_reqs $TICK * 0.1;
		4316	#$AnyEvent::BDB::WATCHER->priority (1);
		4317
		4318	unless ($DB_ENV) {
		4319	$DB_ENV = BDB::db_env_create;
		4320	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4321	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4322	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4323	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4324	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4325
		4326	cf::sync_job {
		4327	eval {
		4328	BDB::db_env_open
		4329	$DB_ENV,
		4330	$BDBDIR,
		4331	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4332	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4333	0666;
		4334
		4335	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4336	};
		4337
		4338	cf::cleanup "db_env_open(db): $@" if $@;
		4339	};
		4340	}
		4341
		4342	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4343	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4344	};
		4345	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4346	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4347	};
		4348	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4349	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4350	};
		4351
		4352	info "database initialised";
		4353	}
		4354
		4355	{
		4356	# configure IO::AIO
		4357
		4358	info "initialising aio";
		4359	IO::AIO::min_parallel 8;
		4360	IO::AIO::max_poll_time $TICK * 0.1;
		4361	undef $AnyEvent::AIO::WATCHER;
		4362	info "aio initialised";
		4363	}
		4364
		4365	our $_log_backtrace;
		4366	our $_log_backtrace_last;
		4367
		4368	sub _log_backtrace {
		4369	my ($msg, @addr) = @_;
		4370
		4371	$msg =~ s/\n$//;
		4372
		4373	if ($_log_backtrace_last eq $msg) {
		4374	LOG llevInfo, "[ABT] $msg\n";
		4375	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4376	# limit the # of concurrent backtraces
		4377	} elsif ($_log_backtrace < 2) {
		4378	$_log_backtrace_last = $msg;
		4379	++$_log_backtrace;
		4380	my $perl_bt = Carp::longmess $msg;
		4381	async {
		4382	$Coro::current->{desc} = "abt $msg";
		4383
		4384	my @bt = fork_call {
		4385	@addr = map { sprintf "%x", $_ } @addr;
		4386	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4387	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4388	or die "addr2line: $!";
		4389
		4390	my @funcs;
		4391	my @res = <$fh>;
		4392	chomp for @res;
		4393	while (@res) {
		4394	my ($func, $line) = splice @res, 0, 2, ();
		4395	push @funcs, "[$func] $line";
		4396	}
		4397
		4398	@funcs
		4399	};
		4400
		4401	LOG llevInfo, "[ABT] $perl_bt\n";
		4402	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4403	LOG llevInfo, "[ABT] $_\n" for @bt;
		4404	--$_log_backtrace;
		4405	};
		4406	} else {
		4407	LOG llevInfo, "[ABT] $msg\n";
		4408	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4409	}
		4410	}
		4411
		4412	# load additional modules
		4413	require "cf/$_.pm" for @EXTRA_MODULES;
		4414	cf::_connect_to_perl_2;
2229		4415
2230	END { cf::emergency_save }	4416	END { cf::emergency_save }
2231		4417
2232	1	4418	1
2233		4419

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