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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.418 by root, Fri Apr 11 21:09:53 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	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 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro;	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
		43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
18		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
		50	use Data::Dumper;
		51	use Digest::MD5;
		52	use Fcntl;
		53	use YAML ();
19	use IO::AIO 2.3;	54	use IO::AIO 2.51 ();
20	use YAML::Syck ();
21	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
22		58
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
24		64
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
26	$YAML::Syck::ImplicitUnicode = 1;
27
28	$Coro::main->prio (Coro::PRIO_MIN);
29		66
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		68
32	our %COMMAND = ();	69	our %COMMAND = ();
33	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
		71
		72	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
		75	our %EXT_CORO = (); # coroutines bound to extensions
		76	our %EXT_MAP = (); # pluggable maps
35		77
		78	our $RELOAD; # number of reloads so far
36	our @EVENT;	79	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		80
39	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	97	our $NEXT_TICK;
		98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
42		105
43	our %CFG;	106	our %CFG;
44		107
45	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
		109	our $RUNTIME;
		110	our $NOW;
		111
		112	our (%PLAYER, %PLAYER_LOADING); # all users
		113	our (%MAP, %MAP_LOADING ); # all maps
		114	our $LINK_MAP; # the special {link} map, which is always available
		115
		116	# used to convert map paths into valid unix filenames by replacing / by ∕
		117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
		123
		124	binmode STDOUT;
		125	binmode STDERR;
		126
		127	# read virtual server time, if available
		128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		129	open my $fh, "<", "$LOCALDIR/runtime"
		130	or die "unable to read runtime file: $!";
		131	$RUNTIME = <$fh> + 0.;
		132	}
		133
		134	mkdir $_
		135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		136
		137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
46		140
47	#############################################################################	141	#############################################################################
48		142
49	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
50		144
…		…
52		146
53	=item $cf::UPTIME	147	=item $cf::UPTIME
54		148
55	The timestamp of the server start (so not actually an uptime).	149	The timestamp of the server start (so not actually an uptime).
56		150
57	=item $cf::LIBDIR	151	=item $cf::RUNTIME
58		152
59	The perl library directory, where extensions and cf-specific modules can	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	154	every server tick.
		155
		156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		159
		160	Various directories - "/etc", read-only install directory, perl-library
		161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
		164
		165	=item $cf::NOW
		166
		167	The time of the last (current) server tick.
61		168
62	=item $cf::TICK	169	=item $cf::TICK
63		170
64	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
65		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
66	=item %cf::CFG	183	=item %cf::CFG
67		184
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
69	from wherever your confdir points to.	186	from wherever your confdir points to.
		187
		188	=item cf::wait_for_tick, cf::wait_for_tick_begin
		189
		190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		191	returns directly I<after> the tick processing (and consequently, can only wake one process
		192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
70		199
71	=back	200	=back
72		201
73	=cut	202	=cut
74		203
75	BEGIN {	204	BEGIN {
76	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	206	my $msg = join "", @_;
		207
78	$msg .= "\n"	208	$msg .= "\n"
79	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
80		210
81	print STDERR "cfperl: $msg";	211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
82	LOG llevError, "cfperl: $msg";	213	LOG llevError, $msg;
83	};	214	};
84	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
85		231
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		239
93	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	241	# within the Safe compartment.
95	for my $pkg (qw(	242	for my $pkg (qw(
96	cf::global cf::attachable	243	cf::global cf::attachable
…		…
101	)) {	248	)) {
102	no strict 'refs';	249	no strict 'refs';
103	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
104	}	251	}
105		252
106	$Event::DIED = sub {	253	$EV::DIED = sub {
107	warn "error in event callback: @_";	254	warn "error in event callback: @_";
108	};	255	};
109		256
110	my %ext_pkg;	257	#############################################################################
111	my @exts;
112	my @hook;
113		258
114	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
115		260
116	=over 4	261	=over 4
117		262
118	=cut	263	=item dumpval $ref
119		264
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	265	=cut
121		266
		267	sub dumpval {
		268	eval {
		269	local $SIG{__DIE__};
		270	my $d;
		271	if (1) {
		272	$d = new Data::Dumper([$_[0]], ["*var"]);
		273	$d->Terse(1);
		274	$d->Indent(2);
		275	$d->Quotekeys(0);
		276	$d->Useqq(1);
		277	#$d->Bless(...);
		278	$d->Seen($_[1]) if @_ > 1;
		279	$d = $d->Dump();
		280	}
		281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		282	$d
		283	} || "[unable to dump $_[0]: '$@']";
		284	}
		285
122	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
123		287
124	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
125		289
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
134		291
135	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
136		293
137	=cut	294	=cut
138		295
139	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
141	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
		299	sub decode_json($) { $json_coder->decode ($_[0]) }
		300
		301	=item cf::lock_wait $string
		302
		303	Wait until the given lock is available. See cf::lock_acquire.
		304
		305	=item my $lock = cf::lock_acquire $string
		306
		307	Wait until the given lock is available and then acquires it and returns
		308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		309	for example when the coroutine gets canceled), the lock is automatically
		310	returned.
		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
		315	Lock names should begin with a unique identifier (for example, cf::map::find
		316	uses map_find and cf::map::load uses map_load).
		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
		322	=cut
		323
		324	our %LOCK;
		325	our %LOCKER;#d#
		326
		327	sub lock_wait($) {
		328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
		334
		335	# wait for lock, if any
		336	while ($LOCK{$key}) {
		337	push @{ $LOCK{$key} }, $Coro::current;
		338	Coro::schedule;
		339	}
		340	}
		341
		342	sub lock_acquire($) {
		343	my ($key) = @_;
		344
		345	# wait, to be sure we are not locked
		346	lock_wait $key;
		347
		348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
		350
		351	Coro::guard {
		352	delete $LOCKER{$key};#d#
		353	# wake up all waiters, to be on the safe side
		354	$_->ready for @{ delete $LOCK{$key} };
		355	}
		356	}
		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
		364	sub freeze_mainloop {
		365	tick_inhibit_inc;
		366
		367	Coro::guard \&tick_inhibit_dec;
		368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
		441	}
		442
		443	=item cf::async { BLOCK }
		444
		445	Currently the same as Coro::async_pool, meaning you cannot use
		446	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		447	thing you are allowed to do is call C<prio> on it.
		448
		449	=cut
		450
		451	BEGIN { *async = \&Coro::async_pool }
		452
		453	=item cf::sync_job { BLOCK }
		454
		455	The design of Deliantra requires that the main coroutine ($Coro::main)
		456	is always able to handle events or runnable, as Deliantra is only
		457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
		459
		460	If it must be done, put the blocking parts into C<sync_job>. This will run
		461	the given BLOCK in another coroutine while waiting for the result. The
		462	server will be frozen during this time, so the block should either finish
		463	fast or be very important.
		464
		465	=cut
		466
		467	sub sync_job(&) {
		468	my ($job) = @_;
		469
		470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
		473	# this is the main coro, too bad, we have to block
		474	# till the operation succeeds, freezing the server :/
		475
		476	LOG llevError, Carp::longmess "sync job";#d#
		477
		478	my $freeze_guard = freeze_mainloop;
		479
		480	my $busy = 1;
		481	my @res;
		482
		483	(async {
		484	$Coro::current->desc ("sync job coro");
		485	@res = eval { $job->() };
		486	warn $@ if $@;
		487	undef $busy;
		488	})->prio (Coro::PRIO_MAX);
		489
		490	while ($busy) {
		491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
		495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
		501
		502	wantarray ? @res : $res[0]
		503	} else {
		504	# we are in another coroutine, how wonderful, everything just works
		505
		506	$job->()
		507	}
		508	}
		509
		510	=item $coro = cf::async_ext { BLOCK }
		511
		512	Like async, but this coro is automatically being canceled when the
		513	extension calling this is being unloaded.
		514
		515	=cut
		516
		517	sub async_ext(&) {
		518	my $cb = shift;
		519
		520	my $coro = &Coro::async ($cb);
		521
		522	$coro->on_destroy (sub {
		523	delete $EXT_CORO{$coro+0};
		524	});
		525	$EXT_CORO{$coro+0} = $coro;
		526
		527	$coro
		528	}
		529
		530	=item fork_call { }, $args
		531
		532	Executes the given code block with the given arguments in a seperate
		533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
		536
		537	=cut
		538
		539	sub fork_call(&@) {
		540	my ($cb, @args) = @_;
		541
		542	# we seemingly have to make a local copy of the whole thing,
		543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
		545
		546	my @res = Coro::Util::fork_eval {
		547	reset_signals;
		548	&$cb
		549	}, @args;
		550
		551	wantarray ? @res : $res[-1]
		552	}
		553
		554	=item $coin = coin_from_name $name
		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
		630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	717	}
143		718
144	=back	719	=back
145		720
146	=cut	721	=cut
…		…
153	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
155		730
156	In the following description, CLASS can be any of C<global>, C<object>	731	In the following description, CLASS can be any of C<global>, C<object>
157	C<player>, C<client> or C<map> (i.e. the attachable objects in	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	733	Deliantra).
159		734
160	=over 4	735	=over 4
161		736
162	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
163		738
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	853	our @CB_MAP = ();
279		854
280	my %attachment;	855	my %attachment;
281		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
282	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
284		865
285	use sort 'stable';	866	use sort 'stable';
286		867
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
321		902
322	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		907
327	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	909	my $pkg = shift @arg;
329		910
330	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
360	}	941	}
361		942
362	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
363	} else {	944	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	946	}
366		947
367	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
368	}	949	}
369		950
…		…
371	if (ref $_[0]) {	952	if (ref $_[0]) {
372	_object_attach @_;	953	_object_attach @_;
373	} else {	954	} else {
374	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
375	}	956	}
		957	_recalc_want;
376	};	958	};
377		959
378	# all those should be optimised	960	# all those should be optimised
379	sub cf::attachable::detach {	961	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
384	reattach ($obj);	966	reattach ($obj);
385	} else {	967	} else {
386	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
387	}	969	}
		970	_recalc_want;
388	};	971	};
389		972
390	sub cf::attachable::attached {	973	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
392		975
…		…
407	";	990	";
408	die if $@;	991	die if $@;
409	}	992	}
410		993
411	our $override;	994	our $override;
412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
413		996
414	sub override {	997	sub override {
415	$override = 1;	998	$override = 1;
416	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
417	}	1000	}
418		1001
419	sub do_invoke {	1002	sub do_invoke {
420	my $event = shift;	1003	my $event = shift;
421	my $callbacks = shift;	1004	my $callbacks = shift;
422		1005
423	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
424		1007
425	local $override;	1008	local $override;
426		1009
427	for (@$callbacks) {	1010	for (@$callbacks) {
428	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
437	}	1020	}
438		1021
439	0	1022	0
440	}	1023	}
441		1024
442	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
443		1026
444	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
445		1028
446	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
447		1030
448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
449	removed in future versions), and there is no public API to access override	1032	removed in future versions), and there is no public API to access override
450	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
451		1034
452	=back	1035	=back
453		1036
454	=cut	1037	=cut
455		1038
456	#############################################################################	1039	#############################################################################
457	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
		1083
		1084	sub reattach {
		1085	# basically do the same as instantiate, without calling instantiate
		1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		1089
		1090	my $registry = $obj->registry;
		1091
		1092	@$registry = ();
		1093
		1094	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		1095
		1096	for my $name (keys %{ $obj->{_attachment} || {} }) {
		1097	if (my $attach = $attachment{$name}) {
		1098	for (@$attach) {
		1099	my ($klass, @attach) = @$_;
		1100	_attach $registry, $klass, @attach;
		1101	}
		1102	} else {
		1103	warn "object uses attachment '$name' that is not available, postponing.\n";
		1104	}
		1105	}
		1106	}
458		1107
459	cf::attachable->attach (	1108	cf::attachable->attach (
460	prio => -1000000,	1109	prio => -1000000,
461	on_instantiate => sub {	1110	on_instantiate => sub {
462	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
463		1112
464	$data = from_json $data;	1113	$data = decode_json $data;
465		1114
466	for (@$data) {	1115	for (@$data) {
467	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
468		1117
469	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
470	}	1119	}
471	},	1120	},
472	on_reattach => sub {	1121	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	1122	on_clone => sub {
493	my ($src, $dst) = @_;	1123	my ($src, $dst) = @_;
494		1124
495	@{$dst->registry} = @{$src->registry};	1125	@{$dst->registry} = @{$src->registry};
496		1126
…		…
502	);	1132	);
503		1133
504	sub object_freezer_save {	1134	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
506		1136
		1137	sync_job {
507	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
508	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
510		1142
511	if (open my $fh, ">:raw", "$filename~") {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1146	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	1147	close $fh;
		1148
		1149	if (@$objs) {
		1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1151	chmod SAVE_MODE, $fh;
		1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1153	aio_write $fh, 0, (length $data), $data, 0;
		1154	aio_fsync $fh if $cf::USE_FSYNC;
		1155	close $fh;
520	rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
		1157	}
		1158	} else {
		1159	aio_unlink "$filename.pst";
		1160	}
		1161
		1162	aio_rename "$filename~", $filename;
521	} else {	1163	} else {
522	unlink "$filename.pst";	1164	warn "FATAL: $filename~: $!\n";
523	}	1165	}
524
525	rename "$filename~", $filename;
526	} else {	1166	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	1167	aio_unlink $filename;
531	unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
		1169	}
532	}	1170	};
533	}	1171	}
534		1172
535	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
537		1175
…		…
541	}	1179	}
542		1180
543	sub object_thawer_load {	1181	sub object_thawer_load {
544	my ($filename) = @_;	1182	my ($filename) = @_;
545		1183
546	local $/;
547
548	my $av;
549
550	#TODO: use sysread etc.
551	if (open my $data, "<:raw:perlio", $filename) {
552	$data = <$data>;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };
555	}
556	return ($data, $av);	1184	my ($data, $av);
557	}
558		1185
559	()	1186	(aio_load $filename, $data) >= 0
		1187	or return;
		1188
		1189	unless (aio_stat "$filename.pst") {
		1190	(aio_load "$filename.pst", $av) >= 0
		1191	or return;
		1192
		1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
		1195	}
		1196
		1197	utf8::decode (my $decname = $filename);
		1198	warn sprintf "loading %s (%d,%d)\n",
		1199	$decname, length $data, scalar @{$av || []};
		1200
		1201	($data, $av)
560	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
561		1209
562	#############################################################################	1210	#############################################################################
563	# command handling &c	1211	# command handling &c
564		1212
565	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1227	}
580		1228
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1230
583	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
584		1236
585	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
586	called.	1238	called.
587		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
588	=cut	1251	=cut
589		1252
590	sub register_extcmd {	1253	sub register_extcmd {
591	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
592		1255
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
597	}	1263	}
598		1264
599	cf::player->attach (	1265	cf::player->attach (
600	on_command => sub {	1266	on_command => sub {
601	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
610	cf::override;	1276	cf::override;
611	},	1277	},
612	on_extcmd => sub {	1278	on_extcmd => sub {
613	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
614		1280
615	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
616		1282
617	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
620	$pl->ext_reply ($msg->{msgid}, %reply);
621	}
622	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
623	} else {	1298	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
625	}	1300	}
626		1301
627	cf::override;	1302	cf::override;
628	},	1303	},
629	);	1304	);
630		1305
		1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
		1310	for my $path (<$LIBDIR/*.ext>) {
		1311	next unless -r $path;
		1312
		1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
		1369	}
		1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
		1375	};
		1376	}
		1377
		1378	#############################################################################
		1379
		1380	=back
		1381
		1382	=head2 CORE EXTENSIONS
		1383
		1384	Functions and methods that extend core crossfire objects.
		1385
		1386	=cut
		1387
		1388	package cf::player;
		1389
		1390	use Coro::AIO;
		1391
		1392	=head3 cf::player
		1393
		1394	=over 4
		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
		1410	=item cf::player::find $login
		1411
		1412	Returns the given player object, loading it if necessary (might block).
		1413
		1414	=cut
		1415
		1416	sub playerdir($) {
		1417	"$PLAYERDIR/"
		1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1419	}
		1420
		1421	sub path($) {
		1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1423
		1424	(playerdir $login) . "/playerdata"
		1425	}
		1426
		1427	sub find_active($) {
		1428	$cf::PLAYER{$_[0]}
		1429	and $cf::PLAYER{$_[0]}->active
		1430	and $cf::PLAYER{$_[0]}
		1431	}
		1432
		1433	sub exists($) {
		1434	my ($login) = @_;
		1435
		1436	$cf::PLAYER{$login}
		1437	or cf::sync_job { !aio_stat path $login }
		1438	}
		1439
		1440	sub find($) {
		1441	return $cf::PLAYER{$_[0]} || do {
		1442	my $login = $_[0];
		1443
		1444	my $guard = cf::lock_acquire "user_find:$login";
		1445
		1446	$cf::PLAYER{$_[0]} || do {
		1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
		1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
		1461	$cf::PLAYER{$login} = $pl
		1462	}
		1463	}
		1464	}
		1465
		1466	sub save($) {
		1467	my ($pl) = @_;
		1468
		1469	return if $pl->{deny_save};
		1470
		1471	my $path = path $pl;
		1472	my $guard = cf::lock_acquire "user_save:$path";
		1473
		1474	return if $pl->{deny_save};
		1475
		1476	aio_mkdir playerdir $pl, 0770;
		1477	$pl->{last_save} = $cf::RUNTIME;
		1478
		1479	$pl->save_pl ($path);
		1480	cf::cede_to_tick;
		1481	}
		1482
		1483	sub new($) {
		1484	my ($login) = @_;
		1485
		1486	my $self = create;
		1487
		1488	$self->ob->name ($login);
		1489	$self->{deny_save} = 1;
		1490
		1491	$cf::PLAYER{$login} = $self;
		1492
		1493	$self
		1494	}
		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
		1504	}
		1505
		1506	=item $pl->quit_character
		1507
		1508	Nukes the player without looking back. If logged in, the connection will
		1509	be destroyed. May block for a long time.
		1510
		1511	=cut
		1512
		1513	sub quit_character {
		1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
		1517
		1518	$pl->{deny_save} = 1;
		1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1520
		1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1522	$pl->deactivate;
		1523	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1524	$pl->ns->destroy if $pl->ns;
		1525
		1526	my $path = playerdir $pl;
		1527	my $temp = "$path~$cf::RUNTIME~deleting~";
		1528	aio_rename $path, $temp;
		1529	delete $cf::PLAYER{$pl->ob->name};
		1530	$pl->destroy;
		1531
		1532	my $prefix = qr<^~\Q$name\E/>;
		1533
		1534	# nuke player maps
		1535	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1536
		1537	IO::AIO::aio_rmtree $temp;
		1538	}
		1539
		1540	=item $pl->kick
		1541
		1542	Kicks a player out of the game. This destroys the connection.
		1543
		1544	=cut
		1545
		1546	sub kick {
		1547	my ($pl, $kicker) = @_;
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1550	$pl->killer ("kicked");
		1551	$pl->ns->destroy;
		1552	}
		1553
		1554	=item cf::player::list_logins
		1555
		1556	Returns am arrayref of all valid playernames in the system, can take a
		1557	while and may block, so not sync_job-capable, ever.
		1558
		1559	=cut
		1560
		1561	sub list_logins {
		1562	my $dirs = aio_readdir $PLAYERDIR
		1563	or return [];
		1564
		1565	my @logins;
		1566
		1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
		1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1573	aio_read $fh, 0, 512, my $buf, 0 or next;
		1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
		1576
		1577	utf8::decode $login;
		1578	push @logins, $login;
		1579	}
		1580
		1581	\@logins
		1582	}
		1583
		1584	=item $player->maps
		1585
		1586	Returns an arrayref of map paths that are private for this
		1587	player. May block.
		1588
		1589	=cut
		1590
		1591	sub maps($) {
		1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
		1595
		1596	my $files = aio_readdir playerdir $pl
		1597	or return;
		1598
		1599	my @paths;
		1600
		1601	for (@$files) {
		1602	utf8::decode $_;
		1603	next if /\.(?:pl|pst)$/;
		1604	next unless /^$PATH_SEP/o;
		1605
		1606	push @paths, cf::map::normalise "~$pl/$_";
		1607	}
		1608
		1609	\@paths
		1610	}
		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
		1705	=item $player->ext_reply ($msgid, @msg)
		1706
		1707	Sends an ext reply to the player.
		1708
		1709	=cut
		1710
		1711	sub ext_reply($$@) {
		1712	my ($self, $id, @msg) = @_;
		1713
		1714	$self->ns->ext_reply ($id, @msg)
		1715	}
		1716
		1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
		1744	my ($path) = @_;
		1745
		1746	my ($match, $specificity);
		1747
		1748	for my $region (list) {
		1749	if ($region->{match} && $path =~ $region->{match}) {
		1750	($match, $specificity) = ($region, $region->specificity)
		1751	if $region->specificity > $specificity;
		1752	}
		1753	}
		1754
		1755	$match
		1756	}
		1757
		1758	=back
		1759
		1760	=head3 cf::map
		1761
		1762	=over 4
		1763
		1764	=cut
		1765
		1766	package cf::map;
		1767
		1768	use Fcntl;
		1769	use Coro::AIO;
		1770
		1771	use overload
		1772	'""' => \&as_string,
		1773	fallback => 1;
		1774
		1775	our $MAX_RESET = 3600;
		1776	our $DEFAULT_RESET = 3000;
		1777
		1778	sub generate_random_map {
		1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1782
		1783	# mit "rum" bekleckern, nicht
		1784	$self->_create_random_map (
		1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1788	$rmp->{exit_on_final_map},
		1789	$rmp->{xsize}, $rmp->{ysize},
		1790	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1791	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1792	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1793	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1794	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1795	(cf::region::find $rmp->{region}), $rmp->{custom}
		1796	)
		1797	}
		1798
		1799	=item cf::map->register ($regex, $prio)
		1800
		1801	Register a handler for the map path matching the given regex at the
		1802	givne priority (higher is better, built-in handlers have priority 0, the
		1803	default).
		1804
		1805	=cut
		1806
631	sub register {	1807	sub register {
		1808	my (undef, $regex, $prio) = @_;
		1809	my $pkg = caller;
		1810
		1811	no strict;
		1812	push @{"$pkg\::ISA"}, __PACKAGE__;
		1813
		1814	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1815	}
		1816
		1817	# also paths starting with '/'
		1818	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1819
		1820	sub thawer_merge {
632	my ($base, $pkg) = @_;	1821	my ($self, $merge) = @_;
633		1822
634	#TODO	1823	# we have to keep some variables in memory intact
635	}	1824	local $self->{path};
		1825	local $self->{load_path};
636		1826
637	sub load_extension {	1827	$self->SUPER::thawer_merge ($merge);
		1828	}
		1829
		1830	sub normalise {
638	my ($path) = @_;	1831	my ($path, $base) = @_;
639		1832
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1833	$path = "$path"; # make sure its a string
641	my $base = $1;
642	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645		1834
646	warn "loading '$path' into '$pkg'\n";	1835	$path =~ s/\.map$//;
647		1836
648	open my $fh, "<:utf8", $path	1837	# map plan:
649	or die "$path: $!";	1838	#
		1839	# /! non-realised random map exit (special hack!)
		1840	# {... are special paths that are not being touched
		1841	# ?xxx/... are special absolute paths
		1842	# ?random/... random maps
		1843	# /... normal maps
		1844	# ~user/... per-player map of a specific user
650		1845
651	my $source =	1846	$path =~ s/$PATH_SEP/\//go;
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656		1847
657	eval $source	1848	# treat it as relative path if it starts with
658	or die $@ ? "$path: $@\n"	1849	# something that looks reasonable
659	: "extension disabled.\n";	1850	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1851	$base or Carp::carp "normalise called with relative path and no base: '$path'";
660		1852
661	push @exts, $pkg;	1853	$base =~ s{[^/]+/?$}{};
662	$ext_pkg{$base} = $pkg;	1854	$path = "$base/$path";
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	1855	}
680		1856
681	# remove commands	1857	for ($path) {
682	for my $name (keys %COMMAND) {	1858	redo if s{//}{/};
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1859	redo if s{/\.?/}{/};
		1860	redo if s{/[^/]+/\.\./}{/};
		1861	}
684		1862
685	if (@cb) {	1863	$path
686	$COMMAND{$name} = \@cb;	1864	}
		1865
		1866	sub new_from_path {
		1867	my (undef, $path, $base) = @_;
		1868
		1869	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1870
		1871	$path = normalise $path, $base;
		1872
		1873	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1874	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1875	my $self = bless cf::map::new, $pkg;
		1876	$self->{path} = $path; $self->path ($path);
		1877	$self->init; # pass $1 etc.
		1878	return $self;
		1879	}
		1880	}
		1881
		1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1883	()
		1884	}
		1885
		1886	sub init {
		1887	my ($self) = @_;
		1888
		1889	$self
		1890	}
		1891
		1892	sub as_string {
		1893	my ($self) = @_;
		1894
		1895	"$self->{path}"
		1896	}
		1897
		1898	# the displayed name, this is a one way mapping
		1899	sub visible_name {
		1900	&as_string
		1901	}
		1902
		1903	# the original (read-only) location
		1904	sub load_path {
		1905	my ($self) = @_;
		1906
		1907	"$MAPDIR/$self->{path}.map"
		1908	}
		1909
		1910	# the temporary/swap location
		1911	sub save_path {
		1912	my ($self) = @_;
		1913
		1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1915	"$TMPDIR/$path.map"
		1916	}
		1917
		1918	# the unique path, undef == no special unique path
		1919	sub uniq_path {
		1920	my ($self) = @_;
		1921
		1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1923	"$UNIQUEDIR/$path"
		1924	}
		1925
		1926	# and all this just because we cannot iterate over
		1927	# all maps in C++...
		1928	sub change_all_map_light {
		1929	my ($change) = @_;
		1930
		1931	$_->change_map_light ($change)
		1932	for grep $_->outdoor, values %cf::MAP;
		1933	}
		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
		1943	sub unlink_save {
		1944	my ($self) = @_;
		1945
		1946	utf8::encode (my $save = $self->save_path);
		1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1948	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1949	}
		1950
		1951	sub load_header_from($) {
		1952	my ($self, $path) = @_;
		1953
		1954	utf8::encode $path;
		1955	my $f = new_from_file cf::object::thawer $path
		1956	or return;
		1957
		1958	$self->_load_header ($f)
		1959	or return;
		1960
		1961	local $MAP_LOADING{$self->{path}} = $self;
		1962	$f->resolve_delayed_derefs;
		1963
		1964	$self->{load_path} = $path;
		1965
		1966	1
		1967	}
		1968
		1969	sub load_header_orig {
		1970	my ($self) = @_;
		1971
		1972	$self->load_header_from ($self->load_path)
		1973	}
		1974
		1975	sub load_header_temp {
		1976	my ($self) = @_;
		1977
		1978	$self->load_header_from ($self->save_path)
		1979	}
		1980
		1981	sub prepare_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->last_access ((delete $self->{last_access})
		1985	|| $cf::RUNTIME); #d#
		1986	# safety
		1987	$self->{instantiate_time} = $cf::RUNTIME
		1988	if $self->{instantiate_time} > $cf::RUNTIME;
		1989	}
		1990
		1991	sub prepare_orig {
		1992	my ($self) = @_;
		1993
		1994	$self->{load_original} = 1;
		1995	$self->{instantiate_time} = $cf::RUNTIME;
		1996	$self->last_access ($cf::RUNTIME);
		1997	$self->instantiate;
		1998	}
		1999
		2000	sub load_header {
		2001	my ($self) = @_;
		2002
		2003	if ($self->load_header_temp) {
		2004	$self->prepare_temp;
687	} else {	2005	} else {
688	delete $COMMAND{$name};	2006	$self->load_header_orig
689	}	2007	or return;
		2008	$self->prepare_orig;
		2009	}
		2010
		2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
		2013
		2014	$self->default_region (cf::region::find_by_path $self->{path})
		2015	unless $self->default_region;
		2016
690	}	2017	1
		2018	}
691		2019
692	# remove extcmds	2020	sub find;
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	2021	sub find {
694	delete $EXTCMD{$name};	2022	my ($path, $origin) = @_;
		2023
		2024	$path = normalise $path, $origin && $origin->path;
		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
		2027	cf::lock_wait "map_find:$path";
		2028
		2029	$cf::MAP{$path} || do {
		2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2032
		2033	my $map = new_from_path cf::map $path
		2034	or return;
		2035
		2036	$map->{last_save} = $cf::RUNTIME;
		2037
		2038	$map->load_header
		2039	or return;
		2040
		2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2042	# doing this can freeze the server in a sync job, obviously
		2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
		2046	$map->reset;
		2047	return find $path;
		2048	}
		2049
		2050	$cf::MAP{$path} = $map
		2051	}
		2052	}
		2053
		2054	sub pre_load { }
		2055	sub post_load { }
		2056
		2057	sub load {
		2058	my ($self) = @_;
		2059
		2060	local $self->{deny_reset} = 1; # loading can take a long time
		2061
		2062	my $path = $self->{path};
		2063
695	}	2064	{
		2065	my $guard = cf::lock_acquire "map_data:$path";
696		2066
697	if (my $cb = $pkg->can ("unload")) {	2067	return unless $self->valid;
698	eval {	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
699	$cb->($pkg);	2069
		2070	$self->in_memory (cf::MAP_LOADING);
		2071
		2072	$self->alloc;
		2073
		2074	$self->pre_load;
		2075	cf::cede_to_tick;
		2076
		2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
		2080	or return;
		2081
		2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2083	if delete $self->{load_original};
		2084
		2085	if (my $uniq = $self->uniq_path) {
		2086	utf8::encode $uniq;
		2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
		2089	$self->clear_unique_items;
		2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
700	1	2093	}
701	} or warn "$pkg unloaded, but with errors: $@";	2094	}
702	}
703		2095
704	Symbol::delete_package $pkg;	2096	$f->resolve_delayed_derefs;
705	}
706		2097
707	sub load_extensions {	2098	cf::cede_to_tick;
708	for my $ext (<$LIBDIR/*.ext>) {	2099	# now do the right thing for maps
709	next unless -r $ext;	2100	$self->link_multipart_objects;
710	eval {	2101	$self->difficulty ($self->estimate_difficulty)
711	load_extension $ext;	2102	unless $self->difficulty;
712	1	2103	cf::cede_to_tick;
713	} or warn "$ext not loaded: $@";
714	}
715	}
716		2104
717	#############################################################################	2105	unless ($self->{deny_activate}) {
718	# load/save/clean perl data associated with a map	2106	$self->decay_objects;
		2107	$self->fix_auto_apply;
		2108	$self->update_buttons;
		2109	cf::cede_to_tick;
		2110	$self->set_darkness_map;
		2111	cf::cede_to_tick;
		2112	$self->activate;
		2113	}
719		2114
720	*cf::mapsupport::on_clean = sub {	2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117
		2118	$self->in_memory (cf::MAP_IN_MEMORY);
		2119	}
		2120
		2121	$self->post_load;
		2122	}
		2123
		2124	sub customise_for {
		2125	my ($self, $ob) = @_;
		2126
		2127	return find "~" . $ob->name . "/" . $self->{path}
		2128	if $self->per_player;
		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
		2133	$self
		2134	}
		2135
		2136	# find and load all maps in the 3x3 area around a map
		2137	sub load_neighbours {
721	my ($map) = @_;	2138	my ($map) = @_;
722		2139
723	my $path = $map->tmpname;	2140	my @neigh; # diagonal neighbours
724	defined $path or return;
725		2141
726	unlink "$path.pst";	2142	for (0 .. 3) {
727	};	2143	my $neigh = $map->tile_path ($_)
		2144	or next;
		2145	$neigh = find $neigh, $map
		2146	or next;
		2147	$neigh->load;
728		2148
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2149	push @neigh,
		2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2152	}
730		2153
731	#############################################################################	2154	for (grep defined $_->[0], @neigh) {
732	# load/save perl data associated with player->ob objects	2155	my ($path, $origin) = @$_;
733		2156	my $neigh = find $path, $origin
734	sub all_objects(@) {	2157	or next;
735	@_, map all_objects ($_->inv), @_	2158	$neigh->load;
		2159	}
736	}	2160	}
737		2161
738	# TODO: compatibility cruft, remove when no longer needed	2162	sub find_sync {
739	cf::player->attach (	2163	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		2164
743	for my $o (all_objects $pl->ob) {	2165	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2166	}
745	$o->set_ob_key_value ("_perl_data");
746		2167
747	%$o = %{ Storable::thaw pack "H*", $value };	2168	sub do_load_sync {
		2169	my ($map) = @_;
		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
		2174	cf::sync_job { $map->load };
		2175	}
		2176
		2177	our %MAP_PREFETCH;
		2178	our $MAP_PREFETCHER = undef;
		2179
		2180	sub find_async {
		2181	my ($path, $origin, $load) = @_;
		2182
		2183	$path = normalise $path, $origin && $origin->{path};
		2184
		2185	if (my $map = $cf::MAP{$path}) {
		2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2187	}
		2188
		2189	$MAP_PREFETCH{$path} |= $load;
		2190
		2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
		2194	while (%MAP_PREFETCH) {
		2195	while (my ($k, $v) = each %MAP_PREFETCH) {
		2196	if (my $map = find $k) {
		2197	$map->load if $v;
		2198	}
		2199
		2200	delete $MAP_PREFETCH{$k};
748	}	2201	}
749	}	2202	}
		2203	undef $MAP_PREFETCHER;
		2204	};
		2205	$MAP_PREFETCHER->prio (6);
		2206
		2207	()
		2208	}
		2209
		2210	sub save {
		2211	my ($self) = @_;
		2212
		2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2214
		2215	$self->{last_save} = $cf::RUNTIME;
		2216
		2217	return unless $self->dirty;
		2218
		2219	my $save = $self->save_path; utf8::encode $save;
		2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2221
		2222	$self->{load_path} = $save;
		2223
		2224	return if $self->{deny_save};
		2225
		2226	local $self->{last_access} = $self->last_access;#d#
		2227
		2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
		2230	$_->contr->save for $self->players;
		2231	};
		2232
		2233	if ($uniq) {
		2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2235	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2236	} else {
		2237	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	2238	}
751	);	2239	}
752		2240
753	#############################################################################	2241	sub swap_out {
		2242	my ($self) = @_;
754		2243
755	=head2 CORE EXTENSIONS	2244	# save first because save cedes
		2245	$self->save;
756		2246
757	Functions and methods that extend core crossfire objects.	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
758		2248
759	=head3 cf::player	2249	return if $self->players;
		2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2251	return if $self->{deny_save};
		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
		2257	$self->clear;
		2258	}
		2259
		2260	sub reset_at {
		2261	my ($self) = @_;
		2262
		2263	# TODO: safety, remove and allow resettable per-player maps
		2264	return 1e99 if $self->{deny_reset};
		2265
		2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2268
		2269	$time + $to
		2270	}
		2271
		2272	sub should_reset {
		2273	my ($self) = @_;
		2274
		2275	$self->reset_at <= $cf::RUNTIME
		2276	}
		2277
		2278	sub reset {
		2279	my ($self) = @_;
		2280
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
		2283	return if $self->players;
		2284
		2285	warn "resetting map ", $self->path;
		2286
		2287	$self->in_memory (cf::MAP_SWAPPED);
		2288
		2289	# need to save uniques path
		2290	unless ($self->{deny_save}) {
		2291	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2292
		2293	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2294	if $uniq;
		2295	}
		2296
		2297	delete $cf::MAP{$self->path};
		2298
		2299	$self->deactivate;
		2300	$_->clear_links_to ($self) for values %cf::MAP;
		2301	$self->clear;
		2302
		2303	$self->unlink_save;
		2304	$self->destroy;
		2305	}
		2306
		2307	my $nuke_counter = "aaaa";
		2308
		2309	sub nuke {
		2310	my ($self) = @_;
		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->unlink_save;
		2318
		2319	bless $self, "cf::map";
		2320	delete $self->{deny_reset};
		2321	$self->{deny_save} = 1;
		2322	$self->reset_timeout (1);
		2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2324
		2325	$cf::MAP{$self->path} = $self;
		2326	}
		2327
		2328	$self->reset; # polite request, might not happen
		2329	}
		2330
		2331	=item $maps = cf::map::tmp_maps
		2332
		2333	Returns an arrayref with all map paths of currently instantiated and saved
		2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
		2339	[
		2340	map {
		2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
		2347	}
		2348
		2349	=item $maps = cf::map::random_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
		2353
		2354	=cut
		2355
		2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item cf::map::unique_maps
		2368
		2369	Returns an arrayref of paths of all shared maps that have
		2370	instantiated unique items. May block.
		2371
		2372	=cut
		2373
		2374	sub unique_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise $_
		2380	: ()
		2381	} @{ aio_readdir $UNIQUEDIR or [] }
		2382	]
		2383	}
		2384
		2385	=back
		2386
		2387	=head3 cf::object
		2388
		2389	=cut
		2390
		2391	package cf::object;
760		2392
761	=over 4	2393	=over 4
762		2394
763	=item cf::player::exists $login	2395	=item $ob->inv_recursive
764		2396
765	Returns true when the given account exists.	2397	Returns the inventory of the object _and_ their inventories, recursively.
766		2398
767	=cut	2399	=cut
768		2400
769	sub cf::player::exists($) {	2401	sub inv_recursive_;
770	cf::player::find $_[0]	2402	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2403	map { $_, inv_recursive_ $_->inv } @_
772	}	2404	}
773		2405
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	2406	sub inv_recursive {
775		2407	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	2408	}
		2409
		2410	=item $ref = $ob->ref
		2411
		2412	creates and returns a persistent reference to an objetc that can be stored as a string.
		2413
		2414	=item $ob = cf::object::deref ($refstring)
		2415
		2416	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2417	even if the object actually exists. May block.
		2418
		2419	=cut
		2420
		2421	sub deref {
		2422	my ($ref) = @_;
		2423
		2424	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2425	my ($uuid, $name) = ($1, $2);
		2426	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2427	or return;
		2428	$pl->ob->uuid eq $uuid
		2429	or return;
		2430
		2431	$pl->ob
		2432	} else {
		2433	warn "$ref: cannot resolve object reference\n";
		2434	undef
		2435	}
		2436	}
		2437
		2438	package cf;
787		2439
788	=back	2440	=back
789		2441
790	=head3 cf::object::player	2442	=head3 cf::object::player
791		2443
…		…
807		2459
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2461
810	if ($self->{record_replies}) {	2462	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2464
812	} else {	2465	} else {
		2466	my $pl = $self->contr;
		2467
		2468	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2469	my $dialog = $pl->{npc_dialog};
		2470	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2471
		2472	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2473	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2474	$self->message ($msg, $flags);
		2475	}
815	}	2476	}
		2477	}
		2478
		2479	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2480
		2481	=cut
		2482
		2483	sub cf::object::send_msg {
		2484	my $pl = shift->contr
		2485	or return;
		2486	$pl->send_msg (@_);
816	}	2487	}
817		2488
818	=item $player_object->may ("access")	2489	=item $player_object->may ("access")
819		2490
820	Returns wether the given player is authorized to access resource "access"	2491	Returns wether the given player is authorized to access resource "access"
…		…
829	(ref $cf::CFG{"may_$access"}	2500	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2501	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2502	: $cf::CFG{"may_$access"})
832	}	2503	}
833		2504
		2505	=item $player_object->enter_link
		2506
		2507	Freezes the player and moves him/her to a special map (C<{link}>).
		2508
		2509	The player should be reasonably safe there for short amounts of time. You
		2510	I<MUST> call C<leave_link> as soon as possible, though.
		2511
		2512	Will never block.
		2513
		2514	=item $player_object->leave_link ($map, $x, $y)
		2515
		2516	Moves the player out of the special C<{link}> map onto the specified
		2517	map. If the map is not valid (or omitted), the player will be moved back
		2518	to the location he/she was before the call to C<enter_link>, or, if that
		2519	fails, to the emergency map position.
		2520
		2521	Might block.
		2522
		2523	=cut
		2524
		2525	sub link_map {
		2526	unless ($LINK_MAP) {
		2527	$LINK_MAP = cf::map::find "{link}"
		2528	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2529	$LINK_MAP->load;
		2530	}
		2531
		2532	$LINK_MAP
		2533	}
		2534
		2535	sub cf::object::player::enter_link {
		2536	my ($self) = @_;
		2537
		2538	$self->deactivate_recursive;
		2539
		2540	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2541
		2542	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2543	if $self->map && $self->map->{path} ne "{link}";
		2544
		2545	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2546	}
		2547
		2548	sub cf::object::player::leave_link {
		2549	my ($self, $map, $x, $y) = @_;
		2550
		2551	return unless $self->contr->active;
		2552
		2553	my $link_pos = delete $self->{_link_pos};
		2554
		2555	unless ($map) {
		2556	# restore original map position
		2557	($map, $x, $y) = @{ $link_pos || [] };
		2558	$map = cf::map::find $map;
		2559
		2560	unless ($map) {
		2561	($map, $x, $y) = @$EMERGENCY_POSITION;
		2562	$map = cf::map::find $map
		2563	or die "FATAL: cannot load emergency map\n";
		2564	}
		2565	}
		2566
		2567	($x, $y) = (-1, -1)
		2568	unless (defined $x) && (defined $y);
		2569
		2570	# use -1 or undef as default coordinates, not 0, 0
		2571	($x, $y) = ($map->enter_x, $map->enter_y)
		2572	if $x <=0 && $y <= 0;
		2573
		2574	$map->load;
		2575	$map->load_neighbours;
		2576
		2577	return unless $self->contr->active;
		2578	$self->activate_recursive;
		2579
		2580	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2581	$self->enter_map ($map, $x, $y);
		2582	}
		2583
		2584	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2585
		2586	Moves the player to the given map-path and coordinates by first freezing
		2587	her, loading and preparing them map, calling the provided $check callback
		2588	that has to return the map if sucecssful, and then unfreezes the player on
		2589	the new (success) or old (failed) map position. In either case, $done will
		2590	be called at the end of this process.
		2591
		2592	=cut
		2593
		2594	our $GOTOGEN;
		2595
		2596	sub cf::object::player::goto {
		2597	my ($self, $path, $x, $y, $check, $done) = @_;
		2598
		2599	# do generation counting so two concurrent goto's will be executed in-order
		2600	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2601
		2602	$self->enter_link;
		2603
		2604	(async {
		2605	$Coro::current->{desc} = "player::goto $path $x $y";
		2606
		2607	# *tag paths override both path and x|y
		2608	if ($path =~ /^\*(.*)$/) {
		2609	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2610	my $ob = $obs[rand @obs];
		2611
		2612	# see if we actually can go there
		2613	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2614	$ob = $obs[rand @obs];
		2615	} else {
		2616	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618	# else put us there anyways for now #d#
		2619
		2620	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2621	} else {
		2622	($path, $x, $y) = (undef, undef, undef);
		2623	}
		2624	}
		2625
		2626	my $map = eval {
		2627	my $map = defined $path ? cf::map::find $path : undef;
		2628
		2629	if ($map) {
		2630	$map = $map->customise_for ($self);
		2631	$map = $check->($map) if $check && $map;
		2632	} else {
		2633	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2634	}
		2635
		2636	$map
		2637	};
		2638
		2639	if ($@) {
		2640	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2641	LOG llevError | logBacktrace, Carp::longmess $@;
		2642	}
		2643
		2644	if ($gen == $self->{_goto_generation}) {
		2645	delete $self->{_goto_generation};
		2646	$self->leave_link ($map, $x, $y);
		2647	}
		2648
		2649	$done->() if $done;
		2650	})->prio (1);
		2651	}
		2652
		2653	=item $player_object->enter_exit ($exit_object)
		2654
		2655	=cut
		2656
		2657	sub parse_random_map_params {
		2658	my ($spec) = @_;
		2659
		2660	my $rmp = { # defaults
		2661	xsize => (cf::rndm 15, 40),
		2662	ysize => (cf::rndm 15, 40),
		2663	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2664	#layout => string,
		2665	};
		2666
		2667	for (split /\n/, $spec) {
		2668	my ($k, $v) = split /\s+/, $_, 2;
		2669
		2670	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2671	}
		2672
		2673	$rmp
		2674	}
		2675
		2676	sub prepare_random_map {
		2677	my ($exit) = @_;
		2678
		2679	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2680
		2681	# all this does is basically replace the /! path by
		2682	# a new random map path (?random/...) with a seed
		2683	# that depends on the exit object
		2684
		2685	my $rmp = parse_random_map_params $exit->msg;
		2686
		2687	if ($exit->map) {
		2688	$rmp->{region} = $exit->region->name;
		2689	$rmp->{origin_map} = $exit->map->path;
		2690	$rmp->{origin_x} = $exit->x;
		2691	$rmp->{origin_y} = $exit->y;
		2692	}
		2693
		2694	$rmp->{random_seed} ||= $exit->random_seed;
		2695
		2696	my $data = cf::encode_json $rmp;
		2697	my $md5 = Digest::MD5::md5_hex $data;
		2698	my $meta = "$RANDOMDIR/$md5.meta";
		2699
		2700	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2701	aio_write $fh, 0, (length $data), $data, 0;
		2702	undef $fh;
		2703	aio_rename "$meta~", $meta;
		2704
		2705	$exit->slaying ("?random/$md5");
		2706	$exit->msg (undef);
		2707	}
		2708	}
		2709
		2710	sub cf::object::player::enter_exit {
		2711	my ($self, $exit) = @_;
		2712
		2713	return unless $self->type == cf::PLAYER;
		2714
		2715	if ($exit->slaying eq "/!") {
		2716	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2717	# the problem is that $exit might not survive long enough
		2718	# so it needs to be done right now, right here
		2719	cf::sync_job { prepare_random_map $exit };
		2720	}
		2721
		2722	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2723	my $hp = $exit->stats->hp;
		2724	my $sp = $exit->stats->sp;
		2725
		2726	$self->enter_link;
		2727
		2728	# if exit is damned, update players death & WoR home-position
		2729	$self->contr->savebed ($slaying, $hp, $sp)
		2730	if $exit->flag (FLAG_DAMNED);
		2731
		2732	(async {
		2733	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2734
		2735	$self->deactivate_recursive; # just to be sure
		2736	unless (eval {
		2737	$self->goto ($slaying, $hp, $sp);
		2738
		2739	1;
		2740	}) {
		2741	$self->message ("Something went wrong deep within the crossfire server. "
		2742	. "I'll try to bring you back to the map you were before. "
		2743	. "Please report this to the dungeon master!",
		2744	cf::NDI_UNIQUE | cf::NDI_RED);
		2745
		2746	warn "ERROR in enter_exit: $@";
		2747	$self->leave_link;
		2748	}
		2749	})->prio (1);
		2750	}
		2751
834	=head3 cf::client	2752	=head3 cf::client
835		2753
836	=over 4	2754	=over 4
837		2755
838	=item $client->send_drawinfo ($text, $flags)	2756	=item $client->send_drawinfo ($text, $flags)
…		…
844		2762
845	sub cf::client::send_drawinfo {	2763	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2764	my ($self, $text, $flags) = @_;
847		2765
848	utf8::encode $text;	2766	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2767	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2768	}
851		2769
		2770	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2771
		2772	Send a drawinfo or msg packet to the client, formatting the msg for the
		2773	client if neccessary. C<$type> should be a string identifying the type of
		2774	the message, with C<log> being the default. If C<$color> is negative, suppress
		2775	the message unless the client supports the msg packet.
		2776
		2777	=cut
		2778
		2779	# non-persistent channels (usually the info channel)
		2780	our %CHANNEL = (
		2781	"c/identify" => {
		2782	id => "infobox",
		2783	title => "Identify",
		2784	reply => undef,
		2785	tooltip => "Items recently identified",
		2786	},
		2787	"c/examine" => {
		2788	id => "infobox",
		2789	title => "Examine",
		2790	reply => undef,
		2791	tooltip => "Signs and other items you examined",
		2792	},
		2793	"c/book" => {
		2794	id => "infobox",
		2795	title => "Book",
		2796	reply => undef,
		2797	tooltip => "The contents of a note or book",
		2798	},
		2799	"c/lookat" => {
		2800	id => "infobox",
		2801	title => "Look",
		2802	reply => undef,
		2803	tooltip => "What you saw there",
		2804	},
		2805	"c/who" => {
		2806	id => "infobox",
		2807	title => "Players",
		2808	reply => undef,
		2809	tooltip => "Shows players who are currently online",
		2810	},
		2811	"c/body" => {
		2812	id => "infobox",
		2813	title => "Body Parts",
		2814	reply => undef,
		2815	tooltip => "Shows which body parts you posess and are available",
		2816	},
		2817	"c/uptime" => {
		2818	id => "infobox",
		2819	title => "Uptime",
		2820	reply => undef,
		2821	tooltip => "How long the server has been running since last restart",
		2822	},
		2823	"c/mapinfo" => {
		2824	id => "infobox",
		2825	title => "Map Info",
		2826	reply => undef,
		2827	tooltip => "Information related to the maps",
		2828	},
		2829	);
		2830
		2831	sub cf::client::send_msg {
		2832	my ($self, $channel, $msg, $color, @extra) = @_;
		2833
		2834	$msg = $self->pl->expand_cfpod ($msg);
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel)
		2843	if $self->can_msg;
		2844
		2845	$channel = $channel->{id};
		2846
		2847	} elsif (ref $channel) {
		2848	# send meta info to client, if not yet sent
		2849	unless (exists $self->{channel}{$channel->{id}}) {
		2850	$self->{channel}{$channel->{id}} = $channel;
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853	}
		2854
		2855	$channel = $channel->{id};
		2856	}
		2857
		2858	return unless @extra || length $msg;
		2859
		2860	if ($self->can_msg) {
		2861	# default colour, mask it out
		2862	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2863	if $color & cf::NDI_DEF;
		2864
		2865	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2866	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2867	} else {
		2868	if ($color >= 0) {
		2869	# replace some tags by gcfclient-compatible ones
		2870	for ($msg) {
		2871	1 while
		2872	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2873	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2874	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2875	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2876	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2877	}
		2878
		2879	$color &= cf::NDI_COLOR_MASK;
		2880
		2881	utf8::encode $msg;
		2882
		2883	if (0 && $msg =~ /\[/) {
		2884	# COMMAND/INFO
		2885	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2886	} else {
		2887	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2888	$self->send_packet ("drawinfo $color $msg")
		2889	}
		2890	}
		2891	}
		2892	}
		2893
		2894	=item $client->ext_msg ($type, @msg)
		2895
		2896	Sends an ext event to the client.
		2897
		2898	=cut
		2899
		2900	sub cf::client::ext_msg($$@) {
		2901	my ($self, $type, @msg) = @_;
		2902
		2903	if ($self->extcmd == 2) {
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2905	} elsif ($self->extcmd == 1) { # TODO: remove
		2906	push @msg, msgtype => "event_$type";
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2908	}
		2909	}
		2910
		2911	=item $client->ext_reply ($msgid, @msg)
		2912
		2913	Sends an ext reply to the client.
		2914
		2915	=cut
		2916
		2917	sub cf::client::ext_reply($$@) {
		2918	my ($self, $id, @msg) = @_;
		2919
		2920	if ($self->extcmd == 2) {
		2921	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2922	} elsif ($self->extcmd == 1) {
		2923	#TODO: version 1, remove
		2924	unshift @msg, msgtype => "reply", msgid => $id;
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2926	}
		2927	}
852		2928
853	=item $success = $client->query ($flags, "text", \&cb)	2929	=item $success = $client->query ($flags, "text", \&cb)
854		2930
855	Queues a query to the client, calling the given callback with	2931	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
857	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
858		2934
859	Queries can fail, so check the return code. Or don't, as queries will become	2935	Queries can fail, so check the return code. Or don't, as queries will
860	reliable at some point in the future.	2936	become reliable at some point in the future.
861		2937
862	=cut	2938	=cut
863		2939
864	sub cf::client::query {	2940	sub cf::client::query {
865	my ($self, $flags, $text, $cb) = @_;	2941	my ($self, $flags, $text, $cb) = @_;
…		…
873	utf8::encode $text;	2949	utf8::encode $text;
874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
875		2951
876	$self->send_packet ($self->{query_queue}[0][0])	2952	$self->send_packet ($self->{query_queue}[0][0])
877	if @{ $self->{query_queue} } == 1;	2953	if @{ $self->{query_queue} } == 1;
		2954
		2955	1
878	}	2956	}
879		2957
880	cf::client->attach (	2958	cf::client->attach (
		2959	on_connect => sub {
		2960	my ($ns) = @_;
		2961
		2962	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2963	},
881	on_reply => sub {	2964	on_reply => sub {
882	my ($ns, $msg) = @_;	2965	my ($ns, $msg) = @_;
883		2966
884	# this weird shuffling is so that direct followup queries	2967	# this weird shuffling is so that direct followup queries
885	# get handled first	2968	# get handled first
886	my $queue = delete $ns->{query_queue};	2969	my $queue = delete $ns->{query_queue}
		2970	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2971
888	(shift @$queue)->[1]->($msg);	2972	(shift @$queue)->[1]->($msg);
		2973	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2974
890	push @{ $ns->{query_queue} }, @$queue;	2975	push @{ $ns->{query_queue} }, @$queue;
891		2976
892	if (@{ $ns->{query_queue} } == @$queue) {	2977	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2978	if (@$queue) {
…		…
895	} else {	2980	} else {
896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2981	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
897	}	2982	}
898	}	2983	}
899	},	2984	},
		2985	on_exticmd => sub {
		2986	my ($ns, $buf) = @_;
		2987
		2988	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2989
		2990	if (ref $msg) {
		2991	my ($type, $reply, @payload) =
		2992	"ARRAY" eq ref $msg
		2993	? @$msg
		2994	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2995
		2996	my @reply;
		2997
		2998	if (my $cb = $EXTICMD{$type}) {
		2999	@reply = $cb->($ns, @payload);
		3000	}
		3001
		3002	$ns->ext_reply ($reply, @reply)
		3003	if $reply;
		3004
		3005	} else {
		3006	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3007	}
		3008
		3009	cf::override;
		3010	},
900	);	3011	);
901		3012
902	=item $client->coro (\&cb)	3013	=item $client->async (\&cb)
903		3014
904	Create a new coroutine, running the specified callback. The coroutine will	3015	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	3016	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	3017	or loss of connection).
907		3018
908	=cut	3019	=cut
909		3020
910	sub cf::client::coro {	3021	sub cf::client::async {
911	my ($self, $cb) = @_;	3022	my ($self, $cb) = @_;
912		3023
913	my $coro; $coro = async {	3024	my $coro = &Coro::async ($cb);
914	eval {	3025
915	$cb->();	3026	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	3027	delete $self->{_coro}{$coro+0};
919	};	3028	});
920		3029
921	$self->{_coro}{$coro+0} = $coro;	3030	$self->{_coro}{$coro+0} = $coro;
		3031
		3032	$coro
922	}	3033	}
923		3034
924	cf::client->attach (	3035	cf::client->attach (
925	on_destroy => sub {	3036	on_destroy => sub {
926	my ($ns) = @_;	3037	my ($ns) = @_;
…		…
945	our $safe = new Safe "safe";	3056	our $safe = new Safe "safe";
946	our $safe_hole = new Safe::Hole;	3057	our $safe_hole = new Safe::Hole;
947		3058
948	$SIG{FPE} = 'IGNORE';	3059	$SIG{FPE} = 'IGNORE';
949		3060
950	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3061	$safe->permit_only (Opcode::opset qw(
		3062	:base_core :base_mem :base_orig :base_math
		3063	grepstart grepwhile mapstart mapwhile
		3064	sort time
		3065	));
951		3066
952	# here we export the classes and methods available to script code	3067	# here we export the classes and methods available to script code
953		3068
954	=pod	3069	=pod
955		3070
956	The following fucntions and emthods are available within a safe environment:	3071	The following functions and methods are available within a safe environment:
957		3072
958	cf::object contr pay_amount pay_player map	3073	cf::object
		3074	contr pay_amount pay_player map x y force_find force_add destroy
		3075	insert remove name archname title slaying race decrease_ob_nr
		3076
959	cf::object::player player	3077	cf::object::player
960	cf::player peaceful	3078	player
961	cf::map trigger	3079
		3080	cf::player
		3081	peaceful
		3082
		3083	cf::map
		3084	trigger
962		3085
963	=cut	3086	=cut
964		3087
965	for (	3088	for (
966	["cf::object" => qw(contr pay_amount pay_player map)],	3089	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3090	insert remove inv name archname title slaying race
		3091	decrease_ob_nr destroy)],
967	["cf::object::player" => qw(player)],	3092	["cf::object::player" => qw(player)],
968	["cf::player" => qw(peaceful)],	3093	["cf::player" => qw(peaceful)],
969	["cf::map" => qw(trigger)],	3094	["cf::map" => qw(trigger)],
970	) {	3095	) {
971	no strict 'refs';	3096	no strict 'refs';
…		…
1042	=back	3167	=back
1043		3168
1044	=cut	3169	=cut
1045		3170
1046	#############################################################################	3171	#############################################################################
		3172	# the server's init and main functions
1047		3173
1048	=head2 EXTENSION DATABASE SUPPORT	3174	sub load_facedata($) {
		3175	my ($path) = @_;
1049		3176
1050	Crossfire maintains a very simple database for extension use. It can	3177	# HACK to clear player env face cache, we need some signal framework
1051	currently store anything that can be serialised using Storable, which	3178	# for this (global event?)
1052	excludes objects.	3179	%ext::player_env::MUSIC_FACE_CACHE = ();
1053		3180
1054	The parameter C<$family> should best start with the name of the extension	3181	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1055	using it, it should be unique.
1056		3182
1057	=over 4	3183	warn "loading facedata from $path\n";
1058		3184
1059	=item $hashref = cf::db_get $family	3185	my $facedata;
		3186	0 < aio_load $path, $facedata
		3187	or die "$path: $!";
1060		3188
1061	Return a hashref for use by the extension C<$family>, which can be	3189	$facedata = Coro::Storable::thaw $facedata;
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064		3190
1065	=item $value = cf::db_get $family => $key	3191	$facedata->{version} == 2
		3192	or cf::cleanup "$path: version mismatch, cannot proceed.";
1066		3193
1067	Returns a single value from the database	3194	# patch in the exptable
1068		3195	$facedata->{resource}{"res/exp_table"} = {
1069	=item cf::db_put $family => $hashref	3196	type => FT_RSRC,
1070		3197	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_put $family => $key => $value
1075
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086
1087	=cut
1088
1089	our $DB;
1090
1091	{
1092	my $path = cf::localdir . "/database.pst";
1093
1094	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };
1097	}
1098
1099	my $pid;
1100
1101	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});	3198	};
		3199	cf::cede_to_tick;
1122		3200
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}	3201	{
		3202	my $faces = $facedata->{faceinfo};
1127		3203
1128	sub db_get($;$) {	3204	while (my ($face, $info) = each %$faces) {
1129	@_ >= 2	3205	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1130	? $DB->{$_[0]}{$_[1]}
1131	: ($DB->{$_[0]} ||= { })
1132	}
1133		3206
1134	sub db_put($$;$) {	3207	cf::face::set_visibility $idx, $info->{visibility};
1135	if (@_ >= 3) {	3208	cf::face::set_magicmap $idx, $info->{magicmap};
1136	$DB->{$_[0]}{$_[1]} = $_[2];	3209	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1137	} else {	3210	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142		3211
1143	cf::global->attach (	3212	cf::cede_to_tick;
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	3213	}
		3214
		3215	while (my ($face, $info) = each %$faces) {
		3216	next unless $info->{smooth};
		3217
		3218	my $idx = cf::face::find $face
		3219	or next;
		3220
		3221	if (my $smooth = cf::face::find $info->{smooth}) {
		3222	cf::face::set_smooth $idx, $smooth;
		3223	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3224	} else {
		3225	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3226	}
		3227
		3228	cf::cede_to_tick;
		3229	}
		3230	}
		3231
		3232	{
		3233	my $anims = $facedata->{animinfo};
		3234
		3235	while (my ($anim, $info) = each %$anims) {
		3236	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3237	cf::cede_to_tick;
		3238	}
		3239
		3240	cf::anim::invalidate_all; # d'oh
		3241	}
		3242
		3243	{
		3244	# TODO: for gcfclient pleasure, we should give resources
		3245	# that gcfclient doesn't grok a >10000 face index.
		3246	my $res = $facedata->{resource};
		3247
		3248	while (my ($name, $info) = each %$res) {
		3249	if (defined $info->{type}) {
		3250	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3251	my $data;
		3252
		3253	if ($info->{type} & 1) {
		3254	# prepend meta info
		3255
		3256	my $meta = $enc->encode ({
		3257	name => $name,
		3258	%{ $info->{meta} || {} },
		3259	});
		3260
		3261	$data = pack "(w/a*)*", $meta, $info->{data};
		3262	} else {
		3263	$data = $info->{data};
		3264	}
		3265
		3266	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3267	cf::face::set_type $idx, $info->{type};
		3268	} else {
		3269	$RESOURCE{$name} = $info;
		3270	}
		3271
		3272	cf::cede_to_tick;
		3273	}
		3274	}
		3275
		3276	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3277
		3278	1
		3279	}
		3280
		3281	cf::global->attach (on_resource_update => sub {
		3282	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3283	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3284
		3285	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3286	my $sound = $soundconf->{compat}[$_]
		3287	or next;
		3288
		3289	my $face = cf::face::find "sound/$sound->[1]";
		3290	cf::sound::set $sound->[0] => $face;
		3291	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3292	}
		3293
		3294	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3295	my $face = cf::face::find "sound/$v";
		3296	cf::sound::set $k => $face;
		3297	}
		3298	}
		3299	});
		3300
		3301	register_exticmd fx_want => sub {
		3302	my ($ns, $want) = @_;
		3303
		3304	while (my ($k, $v) = each %$want) {
		3305	$ns->fx_want ($k, $v);
		3306	}
		3307	};
		3308
		3309	sub reload_regions {
		3310	# HACK to clear player env face cache, we need some signal framework
		3311	# for this (global event?)
		3312	%ext::player_env::MUSIC_FACE_CACHE = ();
		3313
		3314	load_resource_file "$MAPDIR/regions"
		3315	or die "unable to load regions file\n";
		3316
		3317	for (cf::region::list) {
		3318	$_->{match} = qr/$_->{match}/
		3319	if exists $_->{match};
		3320	}
		3321	}
		3322
		3323	sub reload_facedata {
		3324	load_facedata "$DATADIR/facedata"
		3325	or die "unable to load facedata\n";
		3326	}
		3327
		3328	sub reload_archetypes {
		3329	load_resource_file "$DATADIR/archetypes"
		3330	or die "unable to load archetypes\n";
		3331	#d# NEED to laod twice to resolve forward references
		3332	# this really needs to be done in an extra post-pass
		3333	# (which needs to be synchronous, so solve it differently)
		3334	load_resource_file "$DATADIR/archetypes"
		3335	or die "unable to load archetypes\n";
		3336	}
		3337
		3338	sub reload_treasures {
		3339	load_resource_file "$DATADIR/treasures"
		3340	or die "unable to load treasurelists\n";
		3341	}
		3342
		3343	sub reload_resources {
		3344	warn "reloading resource files...\n";
		3345
		3346	reload_regions;
		3347	reload_facedata;
		3348	#reload_archetypes;#d#
		3349	reload_archetypes;
		3350	reload_treasures;
		3351
		3352	warn "finished reloading resource files\n";
		3353	}
		3354
		3355	sub init {
		3356	reload_resources;
		3357	}
		3358
		3359	sub reload_config {
		3360	open my $fh, "<:utf8", "$CONFDIR/config"
		3361	or return;
		3362
		3363	local $/;
		3364	*CFG = YAML::Load <$fh>;
		3365
		3366	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3367
		3368	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3369	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3370
		3371	if (exists $CFG{mlockall}) {
		3372	eval {
		3373	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3374	and die "WARNING: m(un)lockall failed: $!\n";
		3375	};
		3376	warn $@ if $@;
		3377	}
		3378	}
		3379
		3380	sub main {
		3381	# we must not ever block the main coroutine
		3382	local $Coro::idle = sub {
		3383	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3384	(async {
		3385	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3386	EV::loop EV::LOOP_ONESHOT;
		3387	})->prio (Coro::PRIO_MAX);
1148	);	3388	};
		3389
		3390	reload_config;
		3391	db_init;
		3392	load_extensions;
		3393
		3394	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3395	evthread_start IO::AIO::poll_fileno;
		3396	EV::loop;
1149	}	3397	}
1150		3398
1151	#############################################################################	3399	#############################################################################
1152	# the server's main()	3400	# initialisation and cleanup
1153		3401
1154	sub cfg_load {	3402	# install some emergency cleanup handlers
1155	open my $fh, "<:utf8", cf::confdir . "/config"	3403	BEGIN {
		3404	our %SIGWATCHER = ();
		3405	for my $signal (qw(INT HUP TERM)) {
		3406	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3407	cf::cleanup "SIG$signal";
		3408	};
		3409	}
		3410	}
		3411
		3412	sub write_runtime_sync {
		3413	my $runtime = "$LOCALDIR/runtime";
		3414
		3415	# first touch the runtime file to show we are still running:
		3416	# the fsync below can take a very very long time.
		3417
		3418	IO::AIO::aio_utime $runtime, undef, undef;
		3419
		3420	my $guard = cf::lock_acquire "write_runtime";
		3421
		3422	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
1156	or return;	3423	or return;
1157		3424
1158	local $/;	3425	my $value = $cf::RUNTIME + 90 + 10;
1159	*CFG = YAML::Syck::Load <$fh>;	3426	# 10 is the runtime save interval, for a monotonic clock
1160	}	3427	# 60 allows for the watchdog to kill the server.
1161		3428
1162	sub main {	3429	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1163	cfg_load;	3430	and return;
1164	db_load;
1165	load_extensions;
1166	Event::loop;
1167	}
1168		3431
1169	#############################################################################	3432	# always fsync - this file is important
1170	# initialisation	3433	aio_fsync $fh
		3434	and return;
1171		3435
1172	sub _perl_reload(&) {	3436	# touch it again to show we are up-to-date
		3437	aio_utime $fh, undef, undef;
		3438
		3439	close $fh
		3440	or return;
		3441
		3442	aio_rename "$runtime~", $runtime
		3443	and return;
		3444
		3445	warn "runtime file written.\n";
		3446
		3447	1
		3448	}
		3449
		3450	our $uuid_lock;
		3451	our $uuid_skip;
		3452
		3453	sub write_uuid_sync($) {
		3454	$uuid_skip ||= $_[0];
		3455
		3456	return if $uuid_lock;
		3457	local $uuid_lock = 1;
		3458
		3459	my $uuid = "$LOCALDIR/uuid";
		3460
		3461	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3462	or return;
		3463
		3464	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3465	$uuid_skip = 0;
		3466
		3467	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3468	and return;
		3469
		3470	# always fsync - this file is important
		3471	aio_fsync $fh
		3472	and return;
		3473
		3474	close $fh
		3475	or return;
		3476
		3477	aio_rename "$uuid~", $uuid
		3478	and return;
		3479
		3480	warn "uuid file written ($value).\n";
		3481
		3482	1
		3483
		3484	}
		3485
		3486	sub write_uuid($$) {
		3487	my ($skip, $sync) = @_;
		3488
		3489	$sync ? write_uuid_sync $skip
		3490	: async { write_uuid_sync $skip };
		3491	}
		3492
		3493	sub emergency_save() {
		3494	my $freeze_guard = cf::freeze_mainloop;
		3495
		3496	warn "enter emergency perl save\n";
		3497
		3498	cf::sync_job {
		3499	# use a peculiar iteration method to avoid tripping on perl
		3500	# refcount bugs in for. also avoids problems with players
		3501	# and maps saved/destroyed asynchronously.
		3502	warn "begin emergency player save\n";
		3503	for my $login (keys %cf::PLAYER) {
		3504	my $pl = $cf::PLAYER{$login} or next;
		3505	$pl->valid or next;
		3506	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3507	$pl->save;
		3508	}
		3509	warn "end emergency player save\n";
		3510
		3511	warn "begin emergency map save\n";
		3512	for my $path (keys %cf::MAP) {
		3513	my $map = $cf::MAP{$path} or next;
		3514	$map->valid or next;
		3515	$map->save;
		3516	}
		3517	warn "end emergency map save\n";
		3518
		3519	warn "begin emergency database checkpoint\n";
		3520	BDB::db_env_txn_checkpoint $DB_ENV;
		3521	warn "end emergency database checkpoint\n";
		3522
		3523	warn "begin write uuid\n";
		3524	write_uuid_sync 1;
		3525	warn "end write uuid\n";
		3526	};
		3527
		3528	warn "leave emergency perl save\n";
		3529	}
		3530
		3531	sub post_cleanup {
1173	my ($msg) = @_;	3532	my ($make_core) = @_;
1174		3533
1175	$msg->("reloading...");	3534	warn Carp::longmess "post_cleanup backtrace"
		3535	if $make_core;
		3536	}
1176		3537
1177	eval {	3538	sub do_reload_perl() {
1178	# cancel all watchers	3539	# can/must only be called in main
1179	for (Event::all_watchers) {	3540	if ($Coro::current != $Coro::main) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	3541	warn "can only reload from main coroutine";
		3542	return;
		3543	}
		3544
		3545	warn "reloading...";
		3546
		3547	warn "entering sync_job";
		3548
		3549	cf::sync_job {
		3550	cf::write_runtime_sync; # external watchdog should not bark
		3551	cf::emergency_save;
		3552	cf::write_runtime_sync; # external watchdog should not bark
		3553
		3554	warn "syncing database to disk";
		3555	BDB::db_env_txn_checkpoint $DB_ENV;
		3556
		3557	# if anything goes wrong in here, we should simply crash as we already saved
		3558
		3559	warn "flushing outstanding aio requests";
		3560	for (;;) {
		3561	BDB::flush;
		3562	IO::AIO::flush;
		3563	Coro::cede_notself;
		3564	last unless IO::AIO::nreqs || BDB::nreqs;
		3565	warn "iterate...";
		3566	}
		3567
		3568	++$RELOAD;
		3569
		3570	warn "cancelling all extension coros";
		3571	$_->cancel for values %EXT_CORO;
		3572	%EXT_CORO = ();
		3573
		3574	warn "removing commands";
		3575	%COMMAND = ();
		3576
		3577	warn "removing ext/exti commands";
		3578	%EXTCMD = ();
		3579	%EXTICMD = ();
		3580
		3581	warn "unloading/nuking all extensions";
		3582	for my $pkg (@EXTS) {
		3583	warn "... unloading $pkg";
		3584
		3585	if (my $cb = $pkg->can ("unload")) {
		3586	eval {
		3587	$cb->($pkg);
		3588	1
		3589	} or warn "$pkg unloaded, but with errors: $@";
1181	}	3590	}
1182		3591
1183	# unload all extensions	3592	warn "... nuking $pkg";
1184	for (@exts) {	3593	Symbol::delete_package $pkg;
1185	$msg->("unloading <$_>");
1186	unload_extension $_;
1187	}	3594	}
1188		3595
1189	# unload all modules loaded from $LIBDIR	3596	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	3597	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3598	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		3599
1193	$msg->("removing <$k>");	3600	warn "... unloading $k";
1194	delete $INC{$k};	3601	delete $INC{$k};
1195		3602
1196	$k =~ s/\.pm$//;	3603	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	3604	$k =~ s/\//::/g;
1198		3605
…		…
1201	}	3608	}
1202		3609
1203	Symbol::delete_package $k;	3610	Symbol::delete_package $k;
1204	}	3611	}
1205		3612
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	3613	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	3614	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3615	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		3616
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	3617	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	3618	delete $INC{"cf.pm"};
		3619	delete $INC{"cf/pod.pm"};
1218		3620
1219	# don't, removes xs symbols, too,	3621	# don't, removes xs symbols, too,
1220	# and global variables created in xs	3622	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	3623	#Symbol::delete_package __PACKAGE__;
1222		3624
1223	# reload cf.pm	3625	warn "unload completed, starting to reload now";
		3626
1224	$msg->("reloading cf.pm");	3627	warn "reloading cf.pm";
1225	require cf;	3628	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3629	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		3630
1228	# load config and database again	3631	warn "loading config and database again";
1229	cf::cfg_load;	3632	cf::reload_config;
1230	cf::db_load;
1231		3633
1232	# load extensions	3634	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	3635	cf::load_extensions;
1235		3636
1236	# reattach attachments to objects	3637	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");	3638	_global_reattach; # objects, sockets
1238	_global_reattach;	3639	warn "reattaching attachments to maps";
		3640	reattach $_ for values %MAP;
		3641	warn "reattaching attachments to players";
		3642	reattach $_ for values %PLAYER;
		3643
		3644	warn "leaving sync_job";
		3645
		3646	1
		3647	} or do {
		3648	warn $@;
		3649	cf::cleanup "error while reloading, exiting.";
1239	};	3650	};
1240	$msg->($@) if $@;
1241		3651
1242	$msg->("reloaded");	3652	warn "reloaded";
1243	};	3653	};
1244		3654
1245	sub perl_reload() {	3655	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {	3656
1247	warn $_[0];	3657	sub reload_perl() {
1248	print "$_[0]\n";	3658	# doing reload synchronously and two reloads happen back-to-back,
		3659	# coro crashes during coro_state_free->destroy here.
		3660
		3661	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3662	do_reload_perl;
		3663	undef $RELOAD_WATCHER;
1249	};	3664	};
1250	}	3665	}
1251		3666
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	3667	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	3668	my ($who, $arg) = @_;
1256		3669
1257	if ($who->flag (FLAG_WIZ)) {	3670	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	3671	$who->message ("reloading server.");
1259	warn $_[0];	3672	async {
1260	$who->message ($_[0]);	3673	$Coro::current->{desc} = "perl_reload";
		3674	reload_perl;
1261	};	3675	};
1262	}	3676	}
1263	};	3677	};
1264		3678
1265	unshift @INC, $LIBDIR;	3679	unshift @INC, $LIBDIR;
1266		3680
1267	$TICK_WATCHER = Event->timer (	3681	my $bug_warning = 0;
1268	prio => 0,	3682
1269	at => $NEXT_TICK || 1,	3683	our @WAIT_FOR_TICK;
1270	data => WF_AUTOCANCEL,	3684	our @WAIT_FOR_TICK_BEGIN;
1271	cb => sub {	3685
		3686	sub wait_for_tick {
		3687	return if tick_inhibit;
		3688	return if $Coro::current == $Coro::main;
		3689
		3690	my $signal = new Coro::Signal;
		3691	push @WAIT_FOR_TICK, $signal;
		3692	$signal->wait;
		3693	}
		3694
		3695	sub wait_for_tick_begin {
		3696	return if tick_inhibit;
		3697	return if $Coro::current == $Coro::main;
		3698
		3699	my $signal = new Coro::Signal;
		3700	push @WAIT_FOR_TICK_BEGIN, $signal;
		3701	$signal->wait;
		3702	}
		3703
		3704	sub tick {
		3705	if ($Coro::current != $Coro::main) {
		3706	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3707	unless ++$bug_warning > 10;
		3708	return;
		3709	}
		3710
1272	cf::server_tick; # one server iteration	3711	cf::server_tick; # one server iteration
1273		3712
1274	my $NOW = Event::time;	3713	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1275	$NEXT_TICK += $TICK;	3714	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1276		3715	Coro::async_pool {
1277	# if we are delayed by four ticks or more, skip them all	3716	$Coro::current->{desc} = "runtime saver";
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3717	write_runtime_sync
1279		3718	or warn "ERROR: unable to write runtime file: $!";
1280	$TICK_WATCHER->at ($NEXT_TICK);	3719	};
1281	$TICK_WATCHER->start;
1282	},	3720	}
1283	);
1284		3721
		3722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3723	$sig->send;
		3724	}
		3725	while (my $sig = shift @WAIT_FOR_TICK) {
		3726	$sig->send;
		3727	}
		3728
		3729	$LOAD = ($NOW - $TICK_START) / $TICK;
		3730	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3731
		3732	if (0) {
		3733	if ($NEXT_TICK) {
		3734	my $jitter = $TICK_START - $NEXT_TICK;
		3735	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3736	warn "jitter $JITTER\n";#d#
		3737	}
		3738	}
		3739	}
		3740
		3741	{
		3742	# configure BDB
		3743
		3744	BDB::min_parallel 8;
		3745	BDB::max_poll_reqs $TICK * 0.1;
		3746	$Coro::BDB::WATCHER->priority (1);
		3747
		3748	unless ($DB_ENV) {
		3749	$DB_ENV = BDB::db_env_create;
		3750	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3751	| BDB::LOG_AUTOREMOVE, 1);
		3752	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3753	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3754
		3755	cf::sync_job {
		3756	eval {
		3757	BDB::db_env_open
		3758	$DB_ENV,
		3759	$BDBDIR,
		3760	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3761	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3762	0666;
		3763
		3764	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3765	};
		3766
		3767	cf::cleanup "db_env_open(db): $@" if $@;
		3768	};
		3769	}
		3770
		3771	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3772	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3773	};
		3774	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3775	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3776	};
		3777	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3778	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3779	};
		3780	}
		3781
		3782	{
		3783	# configure IO::AIO
		3784
		3785	IO::AIO::min_parallel 8;
1285	IO::AIO::max_poll_time $TICK * 0.2;	3786	IO::AIO::max_poll_time $TICK * 0.1;
		3787	$Coro::AIO::WATCHER->priority (1);
		3788	}
1286		3789
1287	Event->io (fd => IO::AIO::poll_fileno,	3790	my $_log_backtrace;
1288	poll => 'r',	3791
1289	prio => 5,	3792	sub _log_backtrace {
1290	data => WF_AUTOCANCEL,	3793	my ($msg, @addr) = @_;
1291	cb => \&IO::AIO::poll_cb);	3794
		3795	$msg =~ s/\n//;
		3796
		3797	# limit the # of concurrent backtraces
		3798	if ($_log_backtrace < 2) {
		3799	++$_log_backtrace;
		3800	async {
		3801	$Coro::current->{desc} = "abt $msg";
		3802
		3803	my @bt = fork_call {
		3804	@addr = map { sprintf "%x", $_ } @addr;
		3805	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3806	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3807	or die "addr2line: $!";
		3808
		3809	my @funcs;
		3810	my @res = <$fh>;
		3811	chomp for @res;
		3812	while (@res) {
		3813	my ($func, $line) = splice @res, 0, 2, ();
		3814	push @funcs, "[$func] $line";
		3815	}
		3816
		3817	@funcs
		3818	};
		3819
		3820	LOG llevInfo, "[ABT] $msg\n";
		3821	LOG llevInfo, "[ABT] $_\n" for @bt;
		3822	--$_log_backtrace;
		3823	};
		3824	} else {
		3825	LOG llevInfo, "[ABT] $msg\n";
		3826	LOG llevInfo, "[ABT] [suppressed]\n";
		3827	}
		3828	}
		3829
		3830	# load additional modules
		3831	use cf::pod;
		3832
		3833	END { cf::emergency_save }
1292		3834
1293	1	3835	1
1294		3836

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