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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.362 by root, Mon Sep 10 12:44:06 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
		8	use Socket;
5	use Storable;	9	use Storable;
		10	use Event;
6	use Opcode;	11	use Opcode;
7	use Safe;	12	use Safe;
8	use Safe::Hole;	13	use Safe::Hole;
9		14
10	use IO::AIO ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
		18	use Coro::Event;
		19	use Coro::Timer;
		20	use Coro::Signal;
		21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
11	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
12	use Time::HiRes;	33	use Time::HiRes;
13	use Event;	34	use Compress::LZF;
		35	use Digest::MD5 ();
		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
14	$Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
15		44
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
18		47
19	use strict;	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		49
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		51
23	our %COMMAND = ();	52	our %COMMAND = ();
24	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
26		60
27	_init_vars;	61	our $RELOAD; # number of reloads so far
28
29	our @EVENT;	62	our @EVENT;
30	our $LIBDIR = datadir . "/ext";
31		63
32	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
33	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34	our $NEXT_TICK;	80	our $NEXT_TICK;
		81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
35		86
36	our %CFG;	87	our %CFG;
37		88
38	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
		90	our $RUNTIME;
		91
		92	our (%PLAYER, %PLAYER_LOADING); # all users
		93	our (%MAP, %MAP_LOADING ); # all maps
		94	our $LINK_MAP; # the special {link} map, which is always available
		95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
		103	binmode STDOUT;
		104	binmode STDERR;
		105
		106	# read virtual server time, if available
		107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		108	open my $fh, "<", "$LOCALDIR/runtime"
		109	or die "unable to read runtime file: $!";
		110	$RUNTIME = <$fh> + 0.;
		111	}
		112
		113	mkdir $_
		114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		115
		116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
39		119
40	#############################################################################	120	#############################################################################
41		121
42	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
43		123
…		…
45		125
46	=item $cf::UPTIME	126	=item $cf::UPTIME
47		127
48	The timestamp of the server start (so not actually an uptime).	128	The timestamp of the server start (so not actually an uptime).
49		129
50	=item $cf::LIBDIR	130	=item $cf::RUNTIME
51		131
52	The perl library directory, where extensions and cf-specific modules can	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
53	be found. It will be added to C<@INC> automatically.	133	every server tick.
		134
		135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		138
		139	Various directories - "/etc", read-only install directory, perl-library
		140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
		143
		144	=item $cf::NOW
		145
		146	The time of the last (current) server tick.
54		147
55	=item $cf::TICK	148	=item $cf::TICK
56		149
57	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
58		161
59	=item %cf::CFG	162	=item %cf::CFG
60		163
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
63		178
64	=back	179	=back
65		180
66	=cut	181	=cut
67		182
68	BEGIN {	183	BEGIN {
69	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	185	my $msg = join "", @_;
		186
71	$msg .= "\n"	187	$msg .= "\n"
72	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
73		189
74	print STDERR "cfperl: $msg";	190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
75	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
76	};	193	};
77	}	194	}
78		195
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
81	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
82	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
83	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
85		203
86	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	205	# within the Safe compartment.
88	for my $pkg (qw(	206	for my $pkg (qw(
89	cf::global	207	cf::global cf::attachable
90	cf::object cf::object::player	208	cf::object cf::object::player
91	cf::client cf::player	209	cf::client cf::player
92	cf::arch cf::living	210	cf::arch cf::living
93	cf::map cf::party cf::region	211	cf::map cf::party cf::region
94	)) {	212	)) {
…		…
98		216
99	$Event::DIED = sub {	217	$Event::DIED = sub {
100	warn "error in event callback: @_";	218	warn "error in event callback: @_";
101	};	219	};
102		220
103	my %ext_pkg;	221	#############################################################################
104	my @exts;
105	my @hook;
106		222
107	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
108		224
109	=over 4	225	=over 4
110		226
111	=cut	227	=item dumpval $ref
112		228
113	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
114		249
115	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
116		251
117	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
118		253
119	=cut
120
121	sub from_json($) {
122	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
123	JSON::Syck::Load $_[0]
124	}
125
126	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
127		255
128	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
129		257
130	=cut	258	=cut
131		259
132	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
134	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Locks are *not* recursive, locking from the same coro twice results in a
		277	deadlocked coro.
		278
		279	Lock names should begin with a unique identifier (for example, cf::map::find
		280	uses map_find and cf::map::load uses map_load).
		281
		282	=item $locked = cf::lock_active $string
		283
		284	Return true if the lock is currently active, i.e. somebody has locked it.
		285
		286	=cut
		287
		288	our %LOCK;
		289	our %LOCKER;#d#
		290
		291	sub lock_wait($) {
		292	my ($key) = @_;
		293
		294	if ($LOCKER{$key} == $Coro::current) {#d#
		295	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		296	return;#d#
		297	}#d#
		298
		299	# wait for lock, if any
		300	while ($LOCK{$key}) {
		301	push @{ $LOCK{$key} }, $Coro::current;
		302	Coro::schedule;
		303	}
		304	}
		305
		306	sub lock_acquire($) {
		307	my ($key) = @_;
		308
		309	# wait, to be sure we are not locked
		310	lock_wait $key;
		311
		312	$LOCK{$key} = [];
		313	$LOCKER{$key} = $Coro::current;#d#
		314
		315	Coro::guard {
		316	delete $LOCKER{$key};#d#
		317	# wake up all waiters, to be on the safe side
		318	$_->ready for @{ delete $LOCK{$key} };
		319	}
		320	}
		321
		322	sub lock_active($) {
		323	my ($key) = @_;
		324
		325	! ! $LOCK{$key}
		326	}
		327
		328	sub freeze_mainloop {
		329	return unless $TICK_WATCHER->is_active;
		330
		331	my $guard = Coro::guard {
		332	$TICK_WATCHER->start;
		333	};
		334	$TICK_WATCHER->stop;
		335	$guard
		336	}
		337
		338	=item cf::get_slot $time[, $priority[, $name]]
		339
		340	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		341	This call blocks and returns only when you have at least C<$time> seconds
		342	of cpu time till the next tick. The slot is only valid till the next cede.
		343
		344	The optional C<$name> can be used to identify the job to run. It might be
		345	used for statistical purposes and should identify the same time-class.
		346
		347	Useful for short background jobs.
		348
		349	=cut
		350
		351	our @SLOT_QUEUE;
		352	our $SLOT_QUEUE;
		353
		354	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		355	$SLOT_QUEUE = Coro::async {
		356	my $signal = new Coro::Signal;
		357
		358	while () {
		359	next_job:
		360	my $avail = cf::till_tick;
		361	if ($avail > 0.01) {
		362	for (0 .. $#SLOT_QUEUE) {
		363	if ($SLOT_QUEUE[$_][0] < $avail) {
		364	my $job = splice @SLOT_QUEUE, $_, 1, ();
		365	$job->[2]->send;
		366	Coro::cede;
		367	goto next_job;
		368	}
		369	}
		370	}
		371
		372	if (@SLOT_QUEUE) {
		373	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		374	push @cf::WAIT_FOR_TICK, $signal;
		375	$signal->wait;
		376	} else {
		377	Coro::schedule;
		378	}
		379	}
		380	};
		381
		382	sub get_slot($;$$) {
		383	my ($time, $pri, $name) = @_;
		384
		385	$time = $TICK * .6 if $time > $TICK * .6;
		386	my $sig = new Coro::Signal;
		387
		388	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		389	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		390	$SLOT_QUEUE->ready;
		391	$sig->wait;
		392	}
		393
		394	=item cf::async { BLOCK }
		395
		396	Currently the same as Coro::async_pool, meaning you cannot use
		397	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		398	thing you are allowed to do is call C<prio> on it.
		399
		400	=cut
		401
		402	BEGIN { *async = \&Coro::async_pool }
		403
		404	=item cf::sync_job { BLOCK }
		405
		406	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		407	is always able to handle events or runnable, as Crossfire TRT is only
		408	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		409	acceptable.
		410
		411	If it must be done, put the blocking parts into C<sync_job>. This will run
		412	the given BLOCK in another coroutine while waiting for the result. The
		413	server will be frozen during this time, so the block should either finish
		414	fast or be very important.
		415
		416	=cut
		417
		418	sub sync_job(&) {
		419	my ($job) = @_;
		420
		421	if ($Coro::current == $Coro::main) {
		422	my $time = Event::time;
		423
		424	# this is the main coro, too bad, we have to block
		425	# till the operation succeeds, freezing the server :/
		426
		427	# TODO: use suspend/resume instead
		428	# (but this is cancel-safe)
		429	my $freeze_guard = freeze_mainloop;
		430
		431	my $busy = 1;
		432	my @res;
		433
		434	(async {
		435	@res = eval { $job->() };
		436	warn $@ if $@;
		437	undef $busy;
		438	})->prio (Coro::PRIO_MAX);
		439
		440	while ($busy) {
		441	Coro::cede or Event::one_event;
		442	}
		443
		444	$time = Event::time - $time;
		445
		446	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		447	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		448
		449	$tick_start += $time; # do not account sync jobs to server load
		450
		451	wantarray ? @res : $res[0]
		452	} else {
		453	# we are in another coroutine, how wonderful, everything just works
		454
		455	$job->()
		456	}
		457	}
		458
		459	=item $coro = cf::async_ext { BLOCK }
		460
		461	Like async, but this coro is automatically being canceled when the
		462	extension calling this is being unloaded.
		463
		464	=cut
		465
		466	sub async_ext(&) {
		467	my $cb = shift;
		468
		469	my $coro = &Coro::async ($cb);
		470
		471	$coro->on_destroy (sub {
		472	delete $EXT_CORO{$coro+0};
		473	});
		474	$EXT_CORO{$coro+0} = $coro;
		475
		476	$coro
		477	}
		478
		479	=item fork_call { }, $args
		480
		481	Executes the given code block with the given arguments in a seperate
		482	process, returning the results. Everything must be serialisable with
		483	Coro::Storable. May, of course, block. Note that the executed sub may
		484	never block itself or use any form of Event handling.
		485
		486	=cut
		487
		488	sub fork_call(&@) {
		489	my ($cb, @args) = @_;
		490
		491	# we seemingly have to make a local copy of the whole thing,
		492	# otherwise perl prematurely frees the stuff :/
		493	# TODO: investigate and fix (likely this will be rather laborious)
		494
		495	my @res = Coro::Util::fork_eval {
		496	reset_signals;
		497	&$cb
		498	}, @args;
		499
		500	wantarray ? @res : $res[-1]
		501	}
		502
		503	=item $value = cf::db_get $family => $key
		504
		505	Returns a single value from the environment database.
		506
		507	=item cf::db_put $family => $key => $value
		508
		509	Stores the given C<$value> in the family. It can currently store binary
		510	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		511
		512	=cut
		513
		514	our $DB;
		515
		516	sub db_init {
		517	unless ($DB) {
		518	$DB = BDB::db_create $DB_ENV;
		519
		520	cf::sync_job {
		521	eval {
		522	$DB->set_flags (BDB::CHKSUM);
		523
		524	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		525	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		526	cf::cleanup "db_open(db): $!" if $!;
		527	};
		528	cf::cleanup "db_open(db): $@" if $@;
		529	};
		530	}
		531	}
		532
		533	sub db_get($$) {
		534	my $key = "$_[0]/$_[1]";
		535
		536	cf::sync_job {
		537	BDB::db_get $DB, undef, $key, my $data;
		538
		539	$! ? ()
		540	: $data
		541	}
		542	}
		543
		544	sub db_put($$$) {
		545	BDB::dbreq_pri 4;
		546	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		547	}
		548
		549	=item cf::cache $id => [$paths...], $processversion => $process
		550
		551	Generic caching function that returns the value of the resource $id,
		552	caching and regenerating as required.
		553
		554	This function can block.
		555
		556	=cut
		557
		558	sub cache {
		559	my ($id, $src, $processversion, $process) = @_;
		560
		561	my $meta =
		562	join "\x00",
		563	$processversion,
		564	map {
		565	aio_stat $_
		566	and Carp::croak "$_: $!";
		567
		568	($_, (stat _)[7,9])
		569	} @$src;
		570
		571	my $dbmeta = db_get cache => "$id/meta";
		572	if ($dbmeta ne $meta) {
		573	# changed, we may need to process
		574
		575	my @data;
		576	my $md5;
		577
		578	for (0 .. $#$src) {
		579	0 <= aio_load $src->[$_], $data[$_]
		580	or Carp::croak "$src->[$_]: $!";
		581	}
		582
		583	# if processing is expensive, check
		584	# checksum first
		585	if (1) {
		586	$md5 =
		587	join "\x00",
		588	$processversion,
		589	map {
		590	cf::cede_to_tick;
		591	($src->[$_], Digest::MD5::md5_hex $data[$_])
		592	} 0.. $#$src;
		593
		594
		595	my $dbmd5 = db_get cache => "$id/md5";
		596	if ($dbmd5 eq $md5) {
		597	db_put cache => "$id/meta", $meta;
		598
		599	return db_get cache => "$id/data";
		600	}
		601	}
		602
		603	my $t1 = Time::HiRes::time;
		604	my $data = $process->(\@data);
		605	my $t2 = Time::HiRes::time;
		606
		607	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		608
		609	db_put cache => "$id/data", $data;
		610	db_put cache => "$id/md5" , $md5;
		611	db_put cache => "$id/meta", $meta;
		612
		613	return $data;
		614	}
		615
		616	db_get cache => "$id/data"
		617	}
		618
		619	=item cf::datalog type => key => value, ...
		620
		621	Log a datalog packet of the given type with the given key-value pairs.
		622
		623	=cut
		624
		625	sub datalog($@) {
		626	my ($type, %kv) = @_;
		627	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
135	}	628	}
136		629
137	=back	630	=back
138		631
139	=cut	632	=cut
…		…
146	attach callbacks/event handlers (a collection of which is called an "attachment")	639	attach callbacks/event handlers (a collection of which is called an "attachment")
147	to it. All such attachable objects support the following methods.	640	to it. All such attachable objects support the following methods.
148		641
149	In the following description, CLASS can be any of C<global>, C<object>	642	In the following description, CLASS can be any of C<global>, C<object>
150	C<player>, C<client> or C<map> (i.e. the attachable objects in	643	C<player>, C<client> or C<map> (i.e. the attachable objects in
151	crossfire+).	644	Crossfire TRT).
152		645
153	=over 4	646	=over 4
154		647
155	=item $attachable->attach ($attachment, key => $value...)	648	=item $attachable->attach ($attachment, key => $value...)
156		649
…		…
249	my ($self, $victim) = @_;	742	my ($self, $victim) = @_;
250	...	743	...
251	}	744	}
252	}	745	}
253		746
		747	=item $attachable->valid
		748
		749	Just because you have a perl object does not mean that the corresponding
		750	C-level object still exists. If you try to access an object that has no
		751	valid C counterpart anymore you get an exception at runtime. This method
		752	can be used to test for existence of the C object part without causing an
		753	exception.
		754
254	=cut	755	=cut
255		756
256	# the following variables are defined in .xs and must not be re-created	757	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	758	our @CB_GLOBAL = (); # registry for all global events
		759	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	760	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	761	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	762	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	763	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	764	our @CB_MAP = ();
263		765
264	my %attachment;	766	my %attachment;
		767
		768	sub cf::attachable::thawer_merge {
		769	# simply override everything except _meta
		770	local $_[0]{_meta};
		771	%{$_[0]} = %{$_[1]};
		772	}
265		773
266	sub _attach_cb($$$$) {	774	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	775	my ($registry, $event, $prio, $cb) = @_;
268		776
269	use sort 'stable';	777	use sort 'stable';
…		…
272		780
273	@{$registry->[$event]} = sort	781	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	782	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	783	@{$registry->[$event] || []}, $cb;
276	}	784	}
		785
		786	# hack
		787	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		788
278	# attach handles attaching event callbacks	789	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	790	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	791	# registry (== where the callback attaches to).
281	sub _attach {	792	sub _attach {
…		…
283		794
284	my $object_type;	795	my $object_type;
285	my $prio = 0;	796	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	797	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		798
		799	#TODO: get rid of this hack
		800	if ($attachable_klass{$klass}) {
		801	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		802	}
		803
288	while (@arg) {	804	while (@arg) {
289	my $type = shift @arg;	805	my $type = shift @arg;
290		806
291	if ($type eq "prio") {	807	if ($type eq "prio") {
292	$prio = shift @arg;	808	$prio = shift @arg;
…		…
296	$registry = $CB_TYPE[$object_type] ||= [];	812	$registry = $CB_TYPE[$object_type] ||= [];
297		813
298	} elsif ($type eq "subtype") {	814	} elsif ($type eq "subtype") {
299	defined $object_type or Carp::croak "subtype specified without type";	815	defined $object_type or Carp::croak "subtype specified without type";
300	my $object_subtype = shift @arg;	816	my $object_subtype = shift @arg;
301	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	817	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
302		818
303	} elsif ($type eq "package") {	819	} elsif ($type eq "package") {
304	my $pkg = shift @arg;	820	my $pkg = shift @arg;
305		821
306	while (my ($name, $id) = each %cb_id) {	822	while (my ($name, $id) = each %cb_id) {
…		…
335	_attach $registry, $klass, @attach;	851	_attach $registry, $klass, @attach;
336	}	852	}
337		853
338	$obj->{$name} = \%arg;	854	$obj->{$name} = \%arg;
339	} else {	855	} else {
340	warn "object uses attachment '$name' that is not available, postponing.\n";	856	warn "object uses attachment '$name' which is not available, postponing.\n";
341	}	857	}
342		858
343	$obj->{_attachment}{$name} = undef;	859	$obj->{_attachment}{$name} = undef;
344	}	860	}
345		861
…		…
347	if (ref $_[0]) {	863	if (ref $_[0]) {
348	_object_attach @_;	864	_object_attach @_;
349	} else {	865	} else {
350	_attach shift->_attach_registry, @_;	866	_attach shift->_attach_registry, @_;
351	}	867	}
		868	_recalc_want;
352	};	869	};
353		870
354	# all those should be optimised	871	# all those should be optimised
355	sub cf::attachable::detach {	872	sub cf::attachable::detach {
356	my ($obj, $name) = @_;	873	my ($obj, $name) = @_;
…		…
359	delete $obj->{_attachment}{$name};	876	delete $obj->{_attachment}{$name};
360	reattach ($obj);	877	reattach ($obj);
361	} else {	878	} else {
362	Carp::croak "cannot, currently, detach class attachments";	879	Carp::croak "cannot, currently, detach class attachments";
363	}	880	}
		881	_recalc_want;
364	};	882	};
365		883
366	sub cf::attachable::attached {	884	sub cf::attachable::attached {
367	my ($obj, $name) = @_;	885	my ($obj, $name) = @_;
368		886
369	exists $obj->{_attachment}{$name}	887	exists $obj->{_attachment}{$name}
370	}	888	}
371		889
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	890	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	891	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	892	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	893	(\\\@CB_$klass, KLASS_$klass)
376	}	894	}
377		895
…		…
383	";	901	";
384	die if $@;	902	die if $@;
385	}	903	}
386		904
387	our $override;	905	our $override;
388	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	906	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
389		907
390	sub override {	908	sub override {
391	$override = 1;	909	$override = 1;
392	@invoke_results = ();	910	@INVOKE_RESULTS = (@_);
393	}	911	}
394		912
395	sub do_invoke {	913	sub do_invoke {
396	my $event = shift;	914	my $event = shift;
397	my $callbacks = shift;	915	my $callbacks = shift;
398		916
399	@invoke_results = ();	917	@INVOKE_RESULTS = ();
400		918
401	local $override;	919	local $override;
402		920
403	for (@$callbacks) {	921	for (@$callbacks) {
404	eval { &{$_->[1]} };	922	eval { &{$_->[1]} };
…		…
413	}	931	}
414		932
415	0	933	0
416	}	934	}
417		935
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	936	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		937
420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	938	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		939
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	940	Generate an object-specific event with the given arguments.
429		941
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	942	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override	943	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	944	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
433
434	=back
435
436	=cut
437
438	#############################################################################
439
440	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442	Attachable objects includes objects, players, clients and maps.
443
444	=over 4
445
446	=item $object->valid
447
448	Just because you have a perl object does not mean that the corresponding
449	C-level object still exists. If you try to access an object that has no
450	valid C counterpart anymore you get an exception at runtime. This method
451	can be used to test for existence of the C object part without causing an
452	exception.
453		945
454	=back	946	=back
455		947
456	=cut	948	=cut
457		949
458	#############################################################################	950	#############################################################################
459	# object support	951	# object support
		952	#
460		953
461	sub instantiate {	954	sub _can_merge {
462	my ($obj, $data) = @_;	955	my ($ob1, $ob2) = @_;
463		956
464	$data = from_json $data;	957	local $Storable::canonical = 1;
		958	my $fob1 = Storable::freeze $ob1;
		959	my $fob2 = Storable::freeze $ob2;
465		960
466	for (@$data) {	961	$fob1 eq $fob2
467	my ($name, $args) = @$_;
468
469	$obj->attach ($name, %{$args || {} });
470	}
471	}	962	}
472		963
473	# basically do the same as instantiate, without calling instantiate
474	sub reattach {	964	sub reattach {
		965	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	966	my ($obj) = @_;
		967
		968	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		969
476	my $registry = $obj->registry;	970	my $registry = $obj->registry;
477		971
478	@$registry = ();	972	@$registry = ();
479		973
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	974	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	983	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	984	}
491	}	985	}
492	}	986	}
493		987
494	sub object_freezer_save {	988	cf::attachable->attach (
495	my ($filename, $rdata, $objs) = @_;
496
497	if (length $$rdata) {
498	warn sprintf "saving %s (%d,%d)\n",
499	$filename, length $$rdata, scalar @$objs;
500
501	if (open my $fh, ">:raw", "$filename~") {
502	chmod SAVE_MODE, $fh;
503	syswrite $fh, $$rdata;
504	close $fh;
505
506	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509	close $fh;
510	rename "$filename.pst~", "$filename.pst";
511	} else {
512	unlink "$filename.pst";
513	}
514
515	rename "$filename~", $filename;
516	} else {
517	warn "FATAL: $filename~: $!\n";
518	}
519	} else {
520	unlink $filename;
521	unlink "$filename.pst";
522	}
523	}
524
525	sub object_freezer_as_string {
526	my ($rdata, $objs) = @_;
527
528	use Data::Dumper;
529
530	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	989	prio => -1000000,
		990	on_instantiate => sub {
		991	my ($obj, $data) = @_;
		992
		993	$data = from_json $data;
		994
		995	for (@$data) {
		996	my ($name, $args) = @$_;
		997
		998	$obj->attach ($name, %{$args || {} });
		999	}
		1000	},
		1001	on_reattach => \&reattach,
554	on_clone => sub {	1002	on_clone => sub {
555	my ($src, $dst) = @_;	1003	my ($src, $dst) = @_;
556		1004
557	@{$dst->registry} = @{$src->registry};	1005	@{$dst->registry} = @{$src->registry};
558		1006
…		…
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	1009	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	1010	if exists $src->{_attachment};
563	},	1011	},
564	);	1012	);
565		1013
		1014	sub object_freezer_save {
		1015	my ($filename, $rdata, $objs) = @_;
		1016
		1017	my $guard = cf::lock_acquire "io";
		1018
		1019	sync_job {
		1020	if (length $$rdata) {
		1021	utf8::decode (my $decname = $filename);
		1022	warn sprintf "saving %s (%d,%d)\n",
		1023	$decname, length $$rdata, scalar @$objs;
		1024
		1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		1026	chmod SAVE_MODE, $fh;
		1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1028	aio_fsync $fh if $cf::USE_FSYNC;
		1029	close $fh;
		1030
		1031	if (@$objs) {
		1032	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1033	chmod SAVE_MODE, $fh;
		1034	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1035	aio_write $fh, 0, (length $data), $data, 0;
		1036	aio_fsync $fh if $cf::USE_FSYNC;
		1037	close $fh;
		1038	aio_rename "$filename.pst~", "$filename.pst";
		1039	}
		1040	} else {
		1041	aio_unlink "$filename.pst";
		1042	}
		1043
		1044	aio_rename "$filename~", $filename;
		1045	} else {
		1046	warn "FATAL: $filename~: $!\n";
		1047	}
		1048	} else {
		1049	aio_unlink $filename;
		1050	aio_unlink "$filename.pst";
		1051	}
		1052	};
		1053
		1054	undef $guard;
		1055	}
		1056
		1057	sub object_freezer_as_string {
		1058	my ($rdata, $objs) = @_;
		1059
		1060	use Data::Dumper;
		1061
		1062	$$rdata . Dumper $objs
		1063	}
		1064
		1065	sub object_thawer_load {
		1066	my ($filename) = @_;
		1067
		1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
		1071
		1072	(aio_load $filename, $data) >= 0
		1073	or return;
		1074
		1075	unless (aio_stat "$filename.pst") {
		1076	(aio_load "$filename.pst", $av) >= 0
		1077	or return;
		1078
		1079	undef $guard;
		1080	$av = eval { (Storable::thaw $av)->{objs} };
		1081	}
		1082
		1083	utf8::decode (my $decname = $filename);
		1084	warn sprintf "loading %s (%d,%d)\n",
		1085	$decname, length $data, scalar @{$av || []};
		1086
		1087	($data, $av)
		1088	}
		1089
		1090	=head2 COMMAND CALLBACKS
		1091
		1092	=over 4
		1093
		1094	=cut
		1095
566	#############################################################################	1096	#############################################################################
567	# command handling &c	1097	# command handling &c
568		1098
569	=item cf::register_command $name => \&callback($ob,$args);	1099	=item cf::register_command $name => \&callback($ob,$args);
570		1100
…		…
582	push @{ $COMMAND{$name} }, [$caller, $cb];	1112	push @{ $COMMAND{$name} }, [$caller, $cb];
583	}	1113	}
584		1114
585	=item cf::register_extcmd $name => \&callback($pl,$packet);	1115	=item cf::register_extcmd $name => \&callback($pl,$packet);
586		1116
587	Register a callbackf ro execution when the client sends an extcmd packet.	1117	Register a callback for execution when the client sends an (synchronous)
		1118	extcmd packet. Ext commands will be processed in the order they are
		1119	received by the server, like other user commands. The first argument is
		1120	the logged-in player. Ext commands can only be processed after a player
		1121	has logged in successfully.
588		1122
589	If the callback returns something, it is sent back as if reply was being	1123	If the callback returns something, it is sent back as if reply was being
590	called.	1124	called.
591		1125
		1126	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1127
		1128	Register a callback for execution when the client sends an (asynchronous)
		1129	exticmd packet. Exti commands are processed by the server as soon as they
		1130	are received, i.e. out of order w.r.t. other commands. The first argument
		1131	is a client socket. Exti commands can be received anytime, even before
		1132	log-in.
		1133
		1134	If the callback returns something, it is sent back as if reply was being
		1135	called.
		1136
592	=cut	1137	=cut
593		1138
594	sub register_extcmd {	1139	sub register_extcmd {
595	my ($name, $cb) = @_;	1140	my ($name, $cb) = @_;
596		1141
597	my $caller = caller;
598	#warn "registering extcmd '$name' to '$caller'";
599
600	$EXTCMD{$name} = [$cb, $caller];	1142	$EXTCMD{$name} = $cb;
		1143	}
		1144
		1145	sub register_exticmd {
		1146	my ($name, $cb) = @_;
		1147
		1148	$EXTICMD{$name} = $cb;
601	}	1149	}
602		1150
603	cf::player->attach (	1151	cf::player->attach (
604	on_command => sub {	1152	on_command => sub {
605	my ($pl, $name, $params) = @_;	1153	my ($pl, $name, $params) = @_;
…		…
614	cf::override;	1162	cf::override;
615	},	1163	},
616	on_extcmd => sub {	1164	on_extcmd => sub {
617	my ($pl, $buf) = @_;	1165	my ($pl, $buf) = @_;
618		1166
619	my $msg = eval { from_json $buf };	1167	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
620		1168
621	if (ref $msg) {	1169	if (ref $msg) {
		1170	my ($type, $reply, @payload) =
		1171	"ARRAY" eq ref $msg
		1172	? @$msg
		1173	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1174
		1175	my @reply;
		1176
622	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1177	if (my $cb = $EXTCMD{$type}) {
623	if (my %reply = $cb->[0]->($pl, $msg)) {	1178	@reply = $cb->($pl, @payload);
624	$pl->ext_reply ($msg->{msgid}, %reply);
625	}
626	}	1179	}
		1180
		1181	$pl->ext_reply ($reply, @reply)
		1182	if $reply;
		1183
627	} else {	1184	} else {
628	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1185	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
629	}	1186	}
630		1187
631	cf::override;	1188	cf::override;
632	},	1189	},
633	);	1190	);
634		1191
		1192	sub load_extensions {
		1193	cf::sync_job {
		1194	my %todo;
		1195
		1196	for my $path (<$LIBDIR/*.ext>) {
		1197	next unless -r $path;
		1198
		1199	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1200	my $base = $1;
		1201	my $pkg = $1;
		1202	$pkg =~ s/[^[:word:]]/_/g;
		1203	$pkg = "ext::$pkg";
		1204
		1205	open my $fh, "<:utf8", $path
		1206	or die "$path: $!";
		1207
		1208	my $source = do { local $/; <$fh> };
		1209
		1210	my %ext = (
		1211	path => $path,
		1212	base => $base,
		1213	pkg => $pkg,
		1214	);
		1215
		1216	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1217	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1218
		1219	$ext{source} =
		1220	"package $pkg; use strict; use utf8;\n"
		1221	. "#line 1 \"$path\"\n{\n"
		1222	. $source
		1223	. "\n};\n1";
		1224
		1225	$todo{$base} = \%ext;
		1226	}
		1227
		1228	my %done;
		1229	while (%todo) {
		1230	my $progress;
		1231
		1232	while (my ($k, $v) = each %todo) {
		1233	for (split /,\s*/, $v->{meta}{depends}) {
		1234	goto skip
		1235	unless exists $done{$_};
		1236	}
		1237
		1238	warn "... loading '$k' into '$v->{pkg}'\n";
		1239
		1240	unless (eval $v->{source}) {
		1241	my $msg = $@ ? "$v->{path}: $@\n"
		1242	: "$v->{base}: extension inactive.\n";
		1243
		1244	if (exists $v->{meta}{mandatory}) {
		1245	warn $msg;
		1246	warn "mandatory extension failed to load, exiting.\n";
		1247	exit 1;
		1248	}
		1249
		1250	warn $msg;
		1251	}
		1252
		1253	$done{$k} = delete $todo{$k};
		1254	push @EXTS, $v->{pkg};
		1255	$progress = 1;
		1256	}
		1257
		1258	skip:
		1259	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1260	unless $progress;
		1261	}
		1262	};
		1263	}
		1264
		1265	#############################################################################
		1266
		1267	=back
		1268
		1269	=head2 CORE EXTENSIONS
		1270
		1271	Functions and methods that extend core crossfire objects.
		1272
		1273	=cut
		1274
		1275	package cf::player;
		1276
		1277	use Coro::AIO;
		1278
		1279	=head3 cf::player
		1280
		1281	=over 4
		1282
		1283	=item cf::player::num_playing
		1284
		1285	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1286
		1287	=cut
		1288
		1289	sub num_playing {
		1290	scalar grep
		1291	$_->ob->map
		1292	&& !$_->hidden
		1293	&& !$_->ob->flag (cf::FLAG_WIZ),
		1294	cf::player::list
		1295	}
		1296
		1297	=item cf::player::find $login
		1298
		1299	Returns the given player object, loading it if necessary (might block).
		1300
		1301	=cut
		1302
		1303	sub playerdir($) {
		1304	"$PLAYERDIR/"
		1305	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1306	}
		1307
		1308	sub path($) {
		1309	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1310
		1311	(playerdir $login) . "/playerdata"
		1312	}
		1313
		1314	sub find_active($) {
		1315	$cf::PLAYER{$_[0]}
		1316	and $cf::PLAYER{$_[0]}->active
		1317	and $cf::PLAYER{$_[0]}
		1318	}
		1319
		1320	sub exists($) {
		1321	my ($login) = @_;
		1322
		1323	$cf::PLAYER{$login}
		1324	or cf::sync_job { !aio_stat path $login }
		1325	}
		1326
		1327	sub find($) {
		1328	return $cf::PLAYER{$_[0]} || do {
		1329	my $login = $_[0];
		1330
		1331	my $guard = cf::lock_acquire "user_find:$login";
		1332
		1333	$cf::PLAYER{$_[0]} || do {
		1334	# rename old playerfiles to new ones
		1335	#TODO: remove when no longer required
		1336	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1337	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1338	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1339	aio_unlink +(playerdir $login) . "/$login.pl";
		1340
		1341	my $f = new_from_file cf::object::thawer path $login
		1342	or return;
		1343
		1344	$f->next;
		1345	my $pl = cf::player::load_pl $f
		1346	or return;
		1347	local $cf::PLAYER_LOADING{$login} = $pl;
		1348	$f->resolve_delayed_derefs;
		1349	$cf::PLAYER{$login} = $pl
		1350	}
		1351	}
		1352	}
		1353
		1354	sub save($) {
		1355	my ($pl) = @_;
		1356
		1357	return if $pl->{deny_save};
		1358
		1359	my $path = path $pl;
		1360	my $guard = cf::lock_acquire "user_save:$path";
		1361
		1362	return if $pl->{deny_save};
		1363
		1364	aio_mkdir playerdir $pl, 0770;
		1365	$pl->{last_save} = $cf::RUNTIME;
		1366
		1367	$pl->save_pl ($path);
		1368	cf::cede_to_tick;
		1369	}
		1370
		1371	sub new($) {
		1372	my ($login) = @_;
		1373
		1374	my $self = create;
		1375
		1376	$self->ob->name ($login);
		1377	$self->{deny_save} = 1;
		1378
		1379	$cf::PLAYER{$login} = $self;
		1380
		1381	$self
		1382	}
		1383
		1384	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1385
		1386	=cut
		1387
		1388	sub send_msg {
		1389	my $ns = shift->ns
		1390	or return;
		1391	$ns->send_msg (@_);
		1392	}
		1393
		1394	=item $pl->quit_character
		1395
		1396	Nukes the player without looking back. If logged in, the connection will
		1397	be destroyed. May block for a long time.
		1398
		1399	=cut
		1400
		1401	sub quit_character {
		1402	my ($pl) = @_;
		1403
		1404	my $name = $pl->ob->name;
		1405
		1406	$pl->{deny_save} = 1;
		1407	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1408
		1409	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1410	$pl->deactivate;
		1411	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1412	$pl->ns->destroy if $pl->ns;
		1413
		1414	my $path = playerdir $pl;
		1415	my $temp = "$path~$cf::RUNTIME~deleting~";
		1416	aio_rename $path, $temp;
		1417	delete $cf::PLAYER{$pl->ob->name};
		1418	$pl->destroy;
		1419
		1420	my $prefix = qr<^~\Q$name\E/>;
		1421
		1422	# nuke player maps
		1423	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1424
		1425	IO::AIO::aio_rmtree $temp;
		1426	}
		1427
		1428	=item $pl->kick
		1429
		1430	Kicks a player out of the game. This destroys the connection.
		1431
		1432	=cut
		1433
		1434	sub kick {
		1435	my ($pl, $kicker) = @_;
		1436
		1437	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1438	$pl->killer ("kicked");
		1439	$pl->ns->destroy;
		1440	}
		1441
		1442	=item cf::player::list_logins
		1443
		1444	Returns am arrayref of all valid playernames in the system, can take a
		1445	while and may block, so not sync_job-capable, ever.
		1446
		1447	=cut
		1448
		1449	sub list_logins {
		1450	my $dirs = aio_readdir $PLAYERDIR
		1451	or return [];
		1452
		1453	my @logins;
		1454
		1455	for my $login (@$dirs) {
		1456	my $path = path $login;
		1457
		1458	# a .pst is a dead give-away for a valid player
		1459	unless (-e "$path.pst") {
		1460	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1461	aio_read $fh, 0, 512, my $buf, 0 or next;
		1462	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1463	}
		1464
		1465	utf8::decode $login;
		1466	push @logins, $login;
		1467	}
		1468
		1469	\@logins
		1470	}
		1471
		1472	=item $player->maps
		1473
		1474	Returns an arrayref of map paths that are private for this
		1475	player. May block.
		1476
		1477	=cut
		1478
		1479	sub maps($) {
		1480	my ($pl) = @_;
		1481
		1482	$pl = ref $pl ? $pl->ob->name : $pl;
		1483
		1484	my $files = aio_readdir playerdir $pl
		1485	or return;
		1486
		1487	my @paths;
		1488
		1489	for (@$files) {
		1490	utf8::decode $_;
		1491	next if /\.(?:pl|pst)$/;
		1492	next unless /^$PATH_SEP/o;
		1493
		1494	push @paths, cf::map::normalise "~$pl/$_";
		1495	}
		1496
		1497	\@paths
		1498	}
		1499
		1500	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1501
		1502	Expand crossfire pod fragments into protocol xml.
		1503
		1504	=cut
		1505
		1506	sub expand_cfpod {
		1507	((my $self), (local $_)) = @_;
		1508
		1509	# escape & and <
		1510	s/&/&amp;/g;
		1511	s/(?<![BIUGHT])</&lt;/g;
		1512
		1513	# this is buggy, it needs to properly take care of nested <'s
		1514
		1515	1 while
		1516	# replace B<>, I<>, U<> etc.
		1517	s/B<([^\>]*)>/<b>$1<\/b>/
		1518	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1519	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1520	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1521	# replace G<male|female> tags
		1522	|| s{G<([^>|]*)\|([^>]*)>}{
		1523	$self->gender ? $2 : $1
		1524	}ge
		1525	# replace H<hint text>
		1526	|| s{H<([^\>]*)>}
		1527	{
		1528	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1529	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1530	"")
		1531	[$self->{hintmode}]
		1532	}ge;
		1533
		1534	# create single paragraphs (very hackish)
		1535	s/(?<=\S)\n(?=\w)/ /g;
		1536
		1537	# compress some whitespace
		1538	s/\s+\n/\n/g; # ws line-ends
		1539	s/\n\n+/\n/g; # double lines
		1540	s/^\n+//; # beginning lines
		1541	s/\n+$//; # ending lines
		1542
		1543	$_
		1544	}
		1545
		1546	sub hintmode {
		1547	$_[0]{hintmode} = $_[1] if @_ > 1;
		1548	$_[0]{hintmode}
		1549	}
		1550
		1551	=item $player->ext_reply ($msgid, @msg)
		1552
		1553	Sends an ext reply to the player.
		1554
		1555	=cut
		1556
		1557	sub ext_reply($$@) {
		1558	my ($self, $id, @msg) = @_;
		1559
		1560	$self->ns->ext_reply ($id, @msg)
		1561	}
		1562
		1563	=item $player->ext_msg ($type, @msg)
		1564
		1565	Sends an ext event to the client.
		1566
		1567	=cut
		1568
		1569	sub ext_msg($$@) {
		1570	my ($self, $type, @msg) = @_;
		1571
		1572	$self->ns->ext_msg ($type, @msg);
		1573	}
		1574
		1575	=head3 cf::region
		1576
		1577	=over 4
		1578
		1579	=cut
		1580
		1581	package cf::region;
		1582
		1583	=item cf::region::find_by_path $path
		1584
		1585	Tries to decuce the likely region for a map knowing only its path.
		1586
		1587	=cut
		1588
		1589	sub find_by_path($) {
		1590	my ($path) = @_;
		1591
		1592	my ($match, $specificity);
		1593
		1594	for my $region (list) {
		1595	if ($region->{match} && $path =~ $region->{match}) {
		1596	($match, $specificity) = ($region, $region->specificity)
		1597	if $region->specificity > $specificity;
		1598	}
		1599	}
		1600
		1601	$match
		1602	}
		1603
		1604	=back
		1605
		1606	=head3 cf::map
		1607
		1608	=over 4
		1609
		1610	=cut
		1611
		1612	package cf::map;
		1613
		1614	use Fcntl;
		1615	use Coro::AIO;
		1616
		1617	use overload
		1618	'""' => \&as_string,
		1619	fallback => 1;
		1620
		1621	our $MAX_RESET = 3600;
		1622	our $DEFAULT_RESET = 3000;
		1623
		1624	sub generate_random_map {
		1625	my ($self, $rmp) = @_;
		1626	# mit "rum" bekleckern, nicht
		1627	$self->_create_random_map (
		1628	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1629	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1630	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1631	$rmp->{exit_on_final_map},
		1632	$rmp->{xsize}, $rmp->{ysize},
		1633	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1634	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1635	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1636	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1637	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1638	(cf::region::find $rmp->{region}), $rmp->{custom}
		1639	)
		1640	}
		1641
		1642	=item cf::map->register ($regex, $prio)
		1643
		1644	Register a handler for the map path matching the given regex at the
		1645	givne priority (higher is better, built-in handlers have priority 0, the
		1646	default).
		1647
		1648	=cut
		1649
635	sub register {	1650	sub register {
		1651	my (undef, $regex, $prio) = @_;
		1652	my $pkg = caller;
		1653
		1654	no strict;
		1655	push @{"$pkg\::ISA"}, __PACKAGE__;
		1656
		1657	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1658	}
		1659
		1660	# also paths starting with '/'
		1661	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1662
		1663	sub thawer_merge {
636	my ($base, $pkg) = @_;	1664	my ($self, $merge) = @_;
637		1665
638	#TODO	1666	# we have to keep some variables in memory intact
639	}	1667	local $self->{path};
		1668	local $self->{load_path};
640		1669
641	sub load_extension {	1670	$self->SUPER::thawer_merge ($merge);
		1671	}
		1672
		1673	sub normalise {
642	my ($path) = @_;	1674	my ($path, $base) = @_;
643		1675
644	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1676	$path = "$path"; # make sure its a string
645	my $base = $1;
646	my $pkg = $1;
647	$pkg =~ s/[^[:word:]]/_/g;
648	$pkg = "ext::$pkg";
649		1677
650	warn "loading '$path' into '$pkg'\n";	1678	$path =~ s/\.map$//;
651		1679
652	open my $fh, "<:utf8", $path	1680	# map plan:
653	or die "$path: $!";	1681	#
		1682	# /! non-realised random map exit (special hack!)
		1683	# {... are special paths that are not being touched
		1684	# ?xxx/... are special absolute paths
		1685	# ?random/... random maps
		1686	# /... normal maps
		1687	# ~user/... per-player map of a specific user
654		1688
655	my $source =	1689	$path =~ s/$PATH_SEP/\//go;
656	"package $pkg; use strict; use utf8;\n"
657	. "#line 1 \"$path\"\n{\n"
658	. (do { local $/; <$fh> })
659	. "\n};\n1";
660		1690
661	eval $source	1691	# treat it as relative path if it starts with
662	or die $@ ? "$path: $@\n"	1692	# something that looks reasonable
663	: "extension disabled.\n";	1693	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1694	$base or Carp::carp "normalise called with relative path and no base: '$path'";
664		1695
665	push @exts, $pkg;	1696	$base =~ s{[^/]+/?$}{};
666	$ext_pkg{$base} = $pkg;	1697	$path = "$base/$path";
667
668	# no strict 'refs';
669	# @{"$pkg\::ISA"} = ext::;
670
671	register $base, $pkg;
672	}
673
674	sub unload_extension {
675	my ($pkg) = @_;
676
677	warn "removing extension $pkg\n";
678
679	# remove hooks
680	#TODO
681	# for my $idx (0 .. $#PLUGIN_EVENT) {
682	# delete $hook[$idx]{$pkg};
683	# }	1698	}
684		1699
685	# remove commands	1700	for ($path) {
686	for my $name (keys %COMMAND) {	1701	redo if s{//}{/};
687	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1702	redo if s{/\.?/}{/};
		1703	redo if s{/[^/]+/\.\./}{/};
		1704	}
688		1705
689	if (@cb) {	1706	$path
690	$COMMAND{$name} = \@cb;	1707	}
		1708
		1709	sub new_from_path {
		1710	my (undef, $path, $base) = @_;
		1711
		1712	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1713
		1714	$path = normalise $path, $base;
		1715
		1716	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1717	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1718	my $self = bless cf::map::new, $pkg;
		1719	$self->{path} = $path; $self->path ($path);
		1720	$self->init; # pass $1 etc.
		1721	return $self;
		1722	}
		1723	}
		1724
		1725	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1726	()
		1727	}
		1728
		1729	sub init {
		1730	my ($self) = @_;
		1731
		1732	$self
		1733	}
		1734
		1735	sub as_string {
		1736	my ($self) = @_;
		1737
		1738	"$self->{path}"
		1739	}
		1740
		1741	# the displayed name, this is a one way mapping
		1742	sub visible_name {
		1743	&as_string
		1744	}
		1745
		1746	# the original (read-only) location
		1747	sub load_path {
		1748	my ($self) = @_;
		1749
		1750	"$MAPDIR/$self->{path}.map"
		1751	}
		1752
		1753	# the temporary/swap location
		1754	sub save_path {
		1755	my ($self) = @_;
		1756
		1757	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1758	"$TMPDIR/$path.map"
		1759	}
		1760
		1761	# the unique path, undef == no special unique path
		1762	sub uniq_path {
		1763	my ($self) = @_;
		1764
		1765	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1766	"$UNIQUEDIR/$path"
		1767	}
		1768
		1769	# and all this just because we cannot iterate over
		1770	# all maps in C++...
		1771	sub change_all_map_light {
		1772	my ($change) = @_;
		1773
		1774	$_->change_map_light ($change)
		1775	for grep $_->outdoor, values %cf::MAP;
		1776	}
		1777
		1778	sub decay_objects {
		1779	my ($self) = @_;
		1780
		1781	return if $self->{deny_reset};
		1782
		1783	$self->do_decay_objects;
		1784	}
		1785
		1786	sub unlink_save {
		1787	my ($self) = @_;
		1788
		1789	utf8::encode (my $save = $self->save_path);
		1790	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1791	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1792	}
		1793
		1794	sub load_header_from($) {
		1795	my ($self, $path) = @_;
		1796
		1797	utf8::encode $path;
		1798	my $f = new_from_file cf::object::thawer $path
		1799	or return;
		1800
		1801	$self->_load_header ($f)
		1802	or return;
		1803
		1804	local $MAP_LOADING{$self->{path}} = $self;
		1805	$f->resolve_delayed_derefs;
		1806
		1807	$self->{load_path} = $path;
		1808
		1809	1
		1810	}
		1811
		1812	sub load_header_orig {
		1813	my ($self) = @_;
		1814
		1815	$self->load_header_from ($self->load_path)
		1816	}
		1817
		1818	sub load_header_temp {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->save_path)
		1822	}
		1823
		1824	sub prepare_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->last_access ((delete $self->{last_access})
		1828	|| $cf::RUNTIME); #d#
		1829	# safety
		1830	$self->{instantiate_time} = $cf::RUNTIME
		1831	if $self->{instantiate_time} > $cf::RUNTIME;
		1832	}
		1833
		1834	sub prepare_orig {
		1835	my ($self) = @_;
		1836
		1837	$self->{load_original} = 1;
		1838	$self->{instantiate_time} = $cf::RUNTIME;
		1839	$self->last_access ($cf::RUNTIME);
		1840	$self->instantiate;
		1841	}
		1842
		1843	sub load_header {
		1844	my ($self) = @_;
		1845
		1846	if ($self->load_header_temp) {
		1847	$self->prepare_temp;
691	} else {	1848	} else {
692	delete $COMMAND{$name};	1849	$self->load_header_orig
693	}	1850	or return;
		1851	$self->prepare_orig;
		1852	}
		1853
		1854	$self->{deny_reset} = 1
		1855	if $self->no_reset;
		1856
		1857	$self->default_region (cf::region::find_by_path $self->{path})
		1858	unless $self->default_region;
		1859
694	}	1860	1
		1861	}
695		1862
696	# remove extcmds	1863	sub find;
697	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1864	sub find {
698	delete $EXTCMD{$name};	1865	my ($path, $origin) = @_;
		1866
		1867	$path = normalise $path, $origin && $origin->path;
		1868
		1869	cf::lock_wait "map_data:$path";#d#remove
		1870	cf::lock_wait "map_find:$path";
		1871
		1872	$cf::MAP{$path} || do {
		1873	my $guard1 = cf::lock_acquire "map_find:$path";
		1874	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1875
		1876	my $map = new_from_path cf::map $path
		1877	or return;
		1878
		1879	$map->{last_save} = $cf::RUNTIME;
		1880
		1881	$map->load_header
		1882	or return;
		1883
		1884	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1885	# doing this can freeze the server in a sync job, obviously
		1886	#$cf::WAIT_FOR_TICK->wait;
		1887	undef $guard1;
		1888	undef $guard2;
		1889	$map->reset;
		1890	return find $path;
		1891	}
		1892
		1893	$cf::MAP{$path} = $map
		1894	}
		1895	}
		1896
		1897	sub pre_load { }
		1898	sub post_load { }
		1899
		1900	sub load {
		1901	my ($self) = @_;
		1902
		1903	local $self->{deny_reset} = 1; # loading can take a long time
		1904
		1905	my $path = $self->{path};
		1906
699	}	1907	{
		1908	my $guard = cf::lock_acquire "map_data:$path";
700		1909
701	if (my $cb = $pkg->can ("unload")) {	1910	return unless $self->valid;
702	eval {	1911	return unless $self->in_memory == cf::MAP_SWAPPED;
703	$cb->($pkg);	1912
		1913	$self->in_memory (cf::MAP_LOADING);
		1914
		1915	$self->alloc;
		1916
		1917	$self->pre_load;
		1918	cf::cede_to_tick;
		1919
		1920	my $f = new_from_file cf::object::thawer $self->{load_path};
		1921	$f->skip_block;
		1922	$self->_load_objects ($f)
		1923	or return;
		1924
		1925	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1926	if delete $self->{load_original};
		1927
		1928	if (my $uniq = $self->uniq_path) {
		1929	utf8::encode $uniq;
		1930	unless (aio_stat $uniq) {
		1931	if (my $f = new_from_file cf::object::thawer $uniq) {
		1932	$self->clear_unique_items;
		1933	$self->_load_objects ($f);
		1934	$f->resolve_delayed_derefs;
		1935	}
704	1	1936	}
705	} or warn "$pkg unloaded, but with errors: $@";	1937	}
706	}
707		1938
708	Symbol::delete_package $pkg;	1939	$f->resolve_delayed_derefs;
709	}
710		1940
711	sub load_extensions {	1941	cf::cede_to_tick;
712	for my $ext (<$LIBDIR/*.ext>) {	1942	# now do the right thing for maps
713	next unless -r $ext;	1943	$self->link_multipart_objects;
714	eval {	1944	$self->difficulty ($self->estimate_difficulty)
715	load_extension $ext;	1945	unless $self->difficulty;
716	1	1946	cf::cede_to_tick;
717	} or warn "$ext not loaded: $@";
718	}
719	}
720		1947
721	#############################################################################	1948	unless ($self->{deny_activate}) {
722	# load/save/clean perl data associated with a map	1949	$self->decay_objects;
		1950	$self->fix_auto_apply;
		1951	$self->update_buttons;
		1952	cf::cede_to_tick;
		1953	$self->set_darkness_map;
		1954	cf::cede_to_tick;
		1955	$self->activate;
		1956	}
723		1957
724	*cf::mapsupport::on_clean = sub {	1958	$self->{last_save} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960
		1961	$self->in_memory (cf::MAP_IN_MEMORY);
		1962	}
		1963
		1964	$self->post_load;
		1965	}
		1966
		1967	sub customise_for {
		1968	my ($self, $ob) = @_;
		1969
		1970	return find "~" . $ob->name . "/" . $self->{path}
		1971	if $self->per_player;
		1972
		1973	# return find "?party/" . $ob->name . "/" . $self->{path}
		1974	# if $self->per_party;
		1975
		1976	$self
		1977	}
		1978
		1979	# find and load all maps in the 3x3 area around a map
		1980	sub load_neighbours {
725	my ($map) = @_;	1981	my ($map) = @_;
726		1982
727	my $path = $map->tmpname;	1983	my @neigh; # diagonal neighbours
728	defined $path or return;
729		1984
730	unlink "$path.pst";	1985	for (0 .. 3) {
731	};	1986	my $neigh = $map->tile_path ($_)
		1987	or next;
		1988	$neigh = find $neigh, $map
		1989	or next;
		1990	$neigh->load;
732		1991
733	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1992	push @neigh,
		1993	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1994	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1995	}
734		1996
735	#############################################################################	1997	for (grep defined $_->[0], @neigh) {
736	# load/save perl data associated with player->ob objects	1998	my ($path, $origin) = @$_;
737		1999	my $neigh = find $path, $origin
738	sub all_objects(@) {	2000	or next;
739	@_, map all_objects ($_->inv), @_	2001	$neigh->load;
		2002	}
740	}	2003	}
741		2004
742	# TODO: compatibility cruft, remove when no longer needed	2005	sub find_sync {
743	cf::player->attach (	2006	my ($path, $origin) = @_;
744	on_load => sub {
745	my ($pl, $path) = @_;
746		2007
747	for my $o (all_objects $pl->ob) {	2008	cf::sync_job { find $path, $origin }
748	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2009	}
749	$o->set_ob_key_value ("_perl_data");
750		2010
751	%$o = %{ Storable::thaw pack "H*", $value };	2011	sub do_load_sync {
		2012	my ($map) = @_;
		2013
		2014	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2015	if $Coro::current == $Coro::main;
		2016
		2017	cf::sync_job { $map->load };
		2018	}
		2019
		2020	our %MAP_PREFETCH;
		2021	our $MAP_PREFETCHER = undef;
		2022
		2023	sub find_async {
		2024	my ($path, $origin, $load) = @_;
		2025
		2026	$path = normalise $path, $origin && $origin->{path};
		2027
		2028	if (my $map = $cf::MAP{$path}) {
		2029	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2030	}
		2031
		2032	$MAP_PREFETCH{$path} |= $load;
		2033
		2034	$MAP_PREFETCHER ||= cf::async {
		2035	while (%MAP_PREFETCH) {
		2036	while (my ($k, $v) = each %MAP_PREFETCH) {
		2037	if (my $map = find $k) {
		2038	$map->load if $v;
		2039	}
		2040
		2041	delete $MAP_PREFETCH{$k};
752	}	2042	}
753	}	2043	}
		2044	undef $MAP_PREFETCHER;
		2045	};
		2046	$MAP_PREFETCHER->prio (6);
		2047
		2048	()
		2049	}
		2050
		2051	sub save {
		2052	my ($self) = @_;
		2053
		2054	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057
		2058	return unless $self->dirty;
		2059
		2060	my $save = $self->save_path; utf8::encode $save;
		2061	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2062
		2063	$self->{load_path} = $save;
		2064
		2065	return if $self->{deny_save};
		2066
		2067	local $self->{last_access} = $self->last_access;#d#
		2068
		2069	cf::async {
		2070	$_->contr->save for $self->players;
		2071	};
		2072
		2073	if ($uniq) {
		2074	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2075	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2076	} else {
		2077	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
754	},	2078	}
755	);	2079	}
756		2080
757	#############################################################################	2081	sub swap_out {
		2082	my ($self) = @_;
758		2083
759	=head2 CORE EXTENSIONS	2084	# save first because save cedes
		2085	$self->save;
760		2086
761	Functions and methods that extend core crossfire objects.	2087	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2088
		2089	return if $self->players;
		2090	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2091	return if $self->{deny_save};
		2092
		2093	$self->in_memory (cf::MAP_SWAPPED);
		2094
		2095	$self->deactivate;
		2096	$_->clear_links_to ($self) for values %cf::MAP;
		2097	$self->clear;
		2098	}
		2099
		2100	sub reset_at {
		2101	my ($self) = @_;
		2102
		2103	# TODO: safety, remove and allow resettable per-player maps
		2104	return 1e99 if $self->{deny_reset};
		2105
		2106	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2107	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2108
		2109	$time + $to
		2110	}
		2111
		2112	sub should_reset {
		2113	my ($self) = @_;
		2114
		2115	$self->reset_at <= $cf::RUNTIME
		2116	}
		2117
		2118	sub reset {
		2119	my ($self) = @_;
		2120
		2121	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2122
		2123	return if $self->players;
		2124
		2125	warn "resetting map ", $self->path;
		2126
		2127	$self->in_memory (cf::MAP_SWAPPED);
		2128
		2129	# need to save uniques path
		2130	unless ($self->{deny_save}) {
		2131	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2132
		2133	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2134	if $uniq;
		2135	}
		2136
		2137	delete $cf::MAP{$self->path};
		2138
		2139	$self->deactivate;
		2140	$_->clear_links_to ($self) for values %cf::MAP;
		2141	$self->clear;
		2142
		2143	$self->unlink_save;
		2144	$self->destroy;
		2145	}
		2146
		2147	my $nuke_counter = "aaaa";
		2148
		2149	sub nuke {
		2150	my ($self) = @_;
		2151
		2152	{
		2153	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2154
		2155	delete $cf::MAP{$self->path};
		2156
		2157	$self->unlink_save;
		2158
		2159	bless $self, "cf::map";
		2160	delete $self->{deny_reset};
		2161	$self->{deny_save} = 1;
		2162	$self->reset_timeout (1);
		2163	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2164
		2165	$cf::MAP{$self->path} = $self;
		2166	}
		2167
		2168	$self->reset; # polite request, might not happen
		2169	}
		2170
		2171	=item $maps = cf::map::tmp_maps
		2172
		2173	Returns an arrayref with all map paths of currently instantiated and saved
		2174	maps. May block.
		2175
		2176	=cut
		2177
		2178	sub tmp_maps() {
		2179	[
		2180	map {
		2181	utf8::decode $_;
		2182	/\.map$/
		2183	? normalise $_
		2184	: ()
		2185	} @{ aio_readdir $TMPDIR or [] }
		2186	]
		2187	}
		2188
		2189	=item $maps = cf::map::random_maps
		2190
		2191	Returns an arrayref with all map paths of currently instantiated and saved
		2192	random maps. May block.
		2193
		2194	=cut
		2195
		2196	sub random_maps() {
		2197	[
		2198	map {
		2199	utf8::decode $_;
		2200	/\.map$/
		2201	? normalise "?random/$_"
		2202	: ()
		2203	} @{ aio_readdir $RANDOMDIR or [] }
		2204	]
		2205	}
		2206
		2207	=item cf::map::unique_maps
		2208
		2209	Returns an arrayref of paths of all shared maps that have
		2210	instantiated unique items. May block.
		2211
		2212	=cut
		2213
		2214	sub unique_maps() {
		2215	[
		2216	map {
		2217	utf8::decode $_;
		2218	/\.map$/
		2219	? normalise $_
		2220	: ()
		2221	} @{ aio_readdir $UNIQUEDIR or [] }
		2222	]
		2223	}
		2224
		2225	package cf;
		2226
		2227	=back
		2228
		2229	=head3 cf::object
		2230
		2231	=cut
		2232
		2233	package cf::object;
762		2234
763	=over 4	2235	=over 4
764		2236
765	=item cf::player::exists $login	2237	=item $ob->inv_recursive
766		2238
767	Returns true when the given account exists.	2239	Returns the inventory of the object _and_ their inventories, recursively.
768		2240
769	=cut	2241	=cut
770		2242
771	sub cf::player::exists($) {	2243	sub inv_recursive_;
772	cf::player::find $_[0]	2244	sub inv_recursive_ {
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2245	map { $_, inv_recursive_ $_->inv } @_
774	}	2246	}
		2247
		2248	sub inv_recursive {
		2249	inv_recursive_ inv $_[0]
		2250	}
		2251
		2252	=item $ref = $ob->ref
		2253
		2254	creates and returns a persistent reference to an objetc that can be stored as a string.
		2255
		2256	=item $ob = cf::object::deref ($refstring)
		2257
		2258	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2259	even if the object actually exists. May block.
		2260
		2261	=cut
		2262
		2263	sub deref {
		2264	my ($ref) = @_;
		2265
		2266	# temporary compatibility#TODO#remove
		2267	$ref =~ s{^<}{player/<};
		2268
		2269	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2270	my ($uuid, $name) = ($1, $2);
		2271	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2272	or return;
		2273	$pl->ob->uuid eq $uuid
		2274	or return;
		2275
		2276	$pl->ob
		2277	} else {
		2278	warn "$ref: cannot resolve object reference\n";
		2279	undef
		2280	}
		2281	}
		2282
		2283	package cf;
		2284
		2285	=back
		2286
		2287	=head3 cf::object::player
		2288
		2289	=over 4
775		2290
776	=item $player_object->reply ($npc, $msg[, $flags])	2291	=item $player_object->reply ($npc, $msg[, $flags])
777		2292
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2293	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779	can be C<undef>. Does the right thing when the player is currently in a	2294	can be C<undef>. Does the right thing when the player is currently in a
…		…
781		2296
782	=cut	2297	=cut
783		2298
784	# rough implementation of a future "reply" method that works	2299	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	2300	# with dialog boxes.
		2301	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	2302	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	2303	my ($self, $npc, $msg, $flags) = @_;
788		2304
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2305	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		2306
791	if ($self->{record_replies}) {	2307	if ($self->{record_replies}) {
792	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2308	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2309
793	} else {	2310	} else {
		2311	my $pl = $self->contr;
		2312
		2313	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2314	my $dialog = $pl->{npc_dialog};
		2315	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2316
		2317	} else {
794	$msg = $npc->name . " says: $msg" if $npc;	2318	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	2319	$self->message ($msg, $flags);
		2320	}
796	}	2321	}
797	}	2322	}
798		2323
799	=item $player->ext_reply ($msgid, $msgtype, %msg)	2324	=item $object->send_msg ($channel, $msg, $color, [extra...])
800		2325
801	Sends an ext reply to the player.
802
803	=cut	2326	=cut
804		2327
805	sub cf::player::ext_reply($$$%) {	2328	sub cf::object::send_msg {
806	my ($self, $id, %msg) = @_;	2329	my $pl = shift->contr
807		2330	or return;
808	$msg{msgid} = $id;	2331	$pl->send_msg (@_);
809
810	$self->send ("ext " . to_json \%msg);
811	}	2332	}
812		2333
813	=item $player_object->may ("access")	2334	=item $player_object->may ("access")
814		2335
815	Returns wether the given player is authorized to access resource "access"	2336	Returns wether the given player is authorized to access resource "access"
…		…
824	(ref $cf::CFG{"may_$access"}	2345	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2346	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	2347	: $cf::CFG{"may_$access"})
827	}	2348	}
828		2349
829	=cut	2350	=item $player_object->enter_link
830		2351
831	#############################################################################	2352	Freezes the player and moves him/her to a special map (C<{link}>).
		2353
		2354	The player should be reasonably safe there for short amounts of time. You
		2355	I<MUST> call C<leave_link> as soon as possible, though.
		2356
		2357	Will never block.
		2358
		2359	=item $player_object->leave_link ($map, $x, $y)
		2360
		2361	Moves the player out of the special C<{link}> map onto the specified
		2362	map. If the map is not valid (or omitted), the player will be moved back
		2363	to the location he/she was before the call to C<enter_link>, or, if that
		2364	fails, to the emergency map position.
		2365
		2366	Might block.
		2367
		2368	=cut
		2369
		2370	sub link_map {
		2371	unless ($LINK_MAP) {
		2372	$LINK_MAP = cf::map::find "{link}"
		2373	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2374	$LINK_MAP->load;
		2375	}
		2376
		2377	$LINK_MAP
		2378	}
		2379
		2380	sub cf::object::player::enter_link {
		2381	my ($self) = @_;
		2382
		2383	$self->deactivate_recursive;
		2384
		2385	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2386
		2387	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2388	if $self->map && $self->map->{path} ne "{link}";
		2389
		2390	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2391	}
		2392
		2393	sub cf::object::player::leave_link {
		2394	my ($self, $map, $x, $y) = @_;
		2395
		2396	return unless $self->contr->active;
		2397
		2398	my $link_pos = delete $self->{_link_pos};
		2399
		2400	unless ($map) {
		2401	# restore original map position
		2402	($map, $x, $y) = @{ $link_pos || [] };
		2403	$map = cf::map::find $map;
		2404
		2405	unless ($map) {
		2406	($map, $x, $y) = @$EMERGENCY_POSITION;
		2407	$map = cf::map::find $map
		2408	or die "FATAL: cannot load emergency map\n";
		2409	}
		2410	}
		2411
		2412	($x, $y) = (-1, -1)
		2413	unless (defined $x) && (defined $y);
		2414
		2415	# use -1 or undef as default coordinates, not 0, 0
		2416	($x, $y) = ($map->enter_x, $map->enter_y)
		2417	if $x <=0 && $y <= 0;
		2418
		2419	$map->load;
		2420	$map->load_neighbours;
		2421
		2422	return unless $self->contr->active;
		2423	$self->activate_recursive;
		2424
		2425	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2426	$self->enter_map ($map, $x, $y);
		2427	}
		2428
		2429	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2430
		2431	Moves the player to the given map-path and coordinates by first freezing
		2432	her, loading and preparing them map, calling the provided $check callback
		2433	that has to return the map if sucecssful, and then unfreezes the player on
		2434	the new (success) or old (failed) map position. In either case, $done will
		2435	be called at the end of this process.
		2436
		2437	=cut
		2438
		2439	our $GOTOGEN;
		2440
		2441	sub cf::object::player::goto {
		2442	my ($self, $path, $x, $y, $check, $done) = @_;
		2443
		2444	# do generation counting so two concurrent goto's will be executed in-order
		2445	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2446
		2447	$self->enter_link;
		2448
		2449	(async {
		2450	my $map = eval {
		2451	my $map = cf::map::find $path;
		2452
		2453	if ($map) {
		2454	$map = $map->customise_for ($self);
		2455	$map = $check->($map) if $check && $map;
		2456	} else {
		2457	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2458	}
		2459
		2460	$map
		2461	};
		2462
		2463	if ($@) {
		2464	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2465	LOG llevError | logBacktrace, Carp::longmess $@;
		2466	}
		2467
		2468	if ($gen == $self->{_goto_generation}) {
		2469	delete $self->{_goto_generation};
		2470	$self->leave_link ($map, $x, $y);
		2471	}
		2472
		2473	$done->() if $done;
		2474	})->prio (1);
		2475	}
		2476
		2477	=item $player_object->enter_exit ($exit_object)
		2478
		2479	=cut
		2480
		2481	sub parse_random_map_params {
		2482	my ($spec) = @_;
		2483
		2484	my $rmp = { # defaults
		2485	xsize => (cf::rndm 15, 40),
		2486	ysize => (cf::rndm 15, 40),
		2487	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2488	#layout => string,
		2489	};
		2490
		2491	for (split /\n/, $spec) {
		2492	my ($k, $v) = split /\s+/, $_, 2;
		2493
		2494	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2495	}
		2496
		2497	$rmp
		2498	}
		2499
		2500	sub prepare_random_map {
		2501	my ($exit) = @_;
		2502
		2503	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2504
		2505	# all this does is basically replace the /! path by
		2506	# a new random map path (?random/...) with a seed
		2507	# that depends on the exit object
		2508
		2509	my $rmp = parse_random_map_params $exit->msg;
		2510
		2511	if ($exit->map) {
		2512	$rmp->{region} = $exit->region->name;
		2513	$rmp->{origin_map} = $exit->map->path;
		2514	$rmp->{origin_x} = $exit->x;
		2515	$rmp->{origin_y} = $exit->y;
		2516	}
		2517
		2518	$rmp->{random_seed} ||= $exit->random_seed;
		2519
		2520	my $data = cf::to_json $rmp;
		2521	my $md5 = Digest::MD5::md5_hex $data;
		2522	my $meta = "$RANDOMDIR/$md5.meta";
		2523
		2524	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2525	aio_write $fh, 0, (length $data), $data, 0;
		2526	undef $fh;
		2527	aio_rename "$meta~", $meta;
		2528
		2529	$exit->slaying ("?random/$md5");
		2530	$exit->msg (undef);
		2531	}
		2532	}
		2533
		2534	sub cf::object::player::enter_exit {
		2535	my ($self, $exit) = @_;
		2536
		2537	return unless $self->type == cf::PLAYER;
		2538
		2539	if ($exit->slaying eq "/!") {
		2540	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2541	# the problem is that $exit might not survive long enough
		2542	# so it needs to be done right now, right here
		2543	cf::sync_job { prepare_random_map $exit };
		2544	}
		2545
		2546	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2547	my $hp = $exit->stats->hp;
		2548	my $sp = $exit->stats->sp;
		2549
		2550	$self->enter_link;
		2551
		2552	# if exit is damned, update players death & WoR home-position
		2553	$self->contr->savebed ($slaying, $hp, $sp)
		2554	if $exit->flag (FLAG_DAMNED);
		2555
		2556	(async {
		2557	$self->deactivate_recursive; # just to be sure
		2558	unless (eval {
		2559	$self->goto ($slaying, $hp, $sp);
		2560
		2561	1;
		2562	}) {
		2563	$self->message ("Something went wrong deep within the crossfire server. "
		2564	. "I'll try to bring you back to the map you were before. "
		2565	. "Please report this to the dungeon master!",
		2566	cf::NDI_UNIQUE | cf::NDI_RED);
		2567
		2568	warn "ERROR in enter_exit: $@";
		2569	$self->leave_link;
		2570	}
		2571	})->prio (1);
		2572	}
		2573
		2574	=head3 cf::client
		2575
		2576	=over 4
		2577
		2578	=item $client->send_drawinfo ($text, $flags)
		2579
		2580	Sends a drawinfo packet to the client. Circumvents output buffering so
		2581	should not be used under normal circumstances.
		2582
		2583	=cut
		2584
		2585	sub cf::client::send_drawinfo {
		2586	my ($self, $text, $flags) = @_;
		2587
		2588	utf8::encode $text;
		2589	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2590	}
		2591
		2592	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2593
		2594	Send a drawinfo or msg packet to the client, formatting the msg for the
		2595	client if neccessary. C<$type> should be a string identifying the type of
		2596	the message, with C<log> being the default. If C<$color> is negative, suppress
		2597	the message unless the client supports the msg packet.
		2598
		2599	=cut
		2600
		2601	our %CHANNEL = (
		2602	"c/identify" => {
		2603	id => "identify",
		2604	title => "Identify",
		2605	reply => undef,
		2606	tooltip => "Items recently identified",
		2607	},
		2608	"c/examine" => {
		2609	id => "examine",
		2610	title => "Examine",
		2611	reply => undef,
		2612	tooltip => "Signs and other items you examined",
		2613	},
		2614	);
		2615
		2616	sub cf::client::send_msg {
		2617	my ($self, $channel, $msg, $color, @extra) = @_;
		2618
		2619	$msg = $self->pl->expand_cfpod ($msg);
		2620
		2621	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2622
		2623	# check predefined channels, for the benefit of C
		2624	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2625
		2626	if (ref $channel) {
		2627	# send meta info to client, if not yet sent
		2628	unless (exists $self->{channel}{$channel->{id}}) {
		2629	$self->{channel}{$channel->{id}} = $channel;
		2630	$self->ext_msg (channel_info => $channel)
		2631	if $self->can_msg;
		2632	}
		2633
		2634	$channel = $channel->{id};
		2635	}
		2636
		2637	return unless @extra || length $msg;
		2638
		2639	if ($self->can_msg) {
		2640	# default colour, mask it out
		2641	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2642	if $color & cf::NDI_DEF;
		2643
		2644	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2645	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2646	} else {
		2647	if ($color >= 0) {
		2648	# replace some tags by gcfclient-compatible ones
		2649	for ($msg) {
		2650	1 while
		2651	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2652	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2653	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2654	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2655	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2656	}
		2657
		2658	$color &= cf::NDI_COLOR_MASK;
		2659
		2660	utf8::encode $msg;
		2661
		2662	if (0 && $msg =~ /\[/) {
		2663	# COMMAND/INFO
		2664	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2665	} else {
		2666	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2667	$self->send_packet ("drawinfo $color $msg")
		2668	}
		2669	}
		2670	}
		2671	}
		2672
		2673	=item $client->ext_msg ($type, @msg)
		2674
		2675	Sends an ext event to the client.
		2676
		2677	=cut
		2678
		2679	sub cf::client::ext_msg($$@) {
		2680	my ($self, $type, @msg) = @_;
		2681
		2682	if ($self->extcmd == 2) {
		2683	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2684	} elsif ($self->extcmd == 1) { # TODO: remove
		2685	push @msg, msgtype => "event_$type";
		2686	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2687	}
		2688	}
		2689
		2690	=item $client->ext_reply ($msgid, @msg)
		2691
		2692	Sends an ext reply to the client.
		2693
		2694	=cut
		2695
		2696	sub cf::client::ext_reply($$@) {
		2697	my ($self, $id, @msg) = @_;
		2698
		2699	if ($self->extcmd == 2) {
		2700	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2701	} elsif ($self->extcmd == 1) {
		2702	#TODO: version 1, remove
		2703	unshift @msg, msgtype => "reply", msgid => $id;
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2705	}
		2706	}
		2707
		2708	=item $success = $client->query ($flags, "text", \&cb)
		2709
		2710	Queues a query to the client, calling the given callback with
		2711	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2712	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2713
		2714	Queries can fail, so check the return code. Or don't, as queries will
		2715	become reliable at some point in the future.
		2716
		2717	=cut
		2718
		2719	sub cf::client::query {
		2720	my ($self, $flags, $text, $cb) = @_;
		2721
		2722	return unless $self->state == ST_PLAYING
		2723	|| $self->state == ST_SETUP
		2724	|| $self->state == ST_CUSTOM;
		2725
		2726	$self->state (ST_CUSTOM);
		2727
		2728	utf8::encode $text;
		2729	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2730
		2731	$self->send_packet ($self->{query_queue}[0][0])
		2732	if @{ $self->{query_queue} } == 1;
		2733
		2734	1
		2735	}
		2736
		2737	cf::client->attach (
		2738	on_connect => sub {
		2739	my ($ns) = @_;
		2740
		2741	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2742	},
		2743	on_reply => sub {
		2744	my ($ns, $msg) = @_;
		2745
		2746	# this weird shuffling is so that direct followup queries
		2747	# get handled first
		2748	my $queue = delete $ns->{query_queue}
		2749	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2750
		2751	(shift @$queue)->[1]->($msg);
		2752	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2753
		2754	push @{ $ns->{query_queue} }, @$queue;
		2755
		2756	if (@{ $ns->{query_queue} } == @$queue) {
		2757	if (@$queue) {
		2758	$ns->send_packet ($ns->{query_queue}[0][0]);
		2759	} else {
		2760	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2761	}
		2762	}
		2763	},
		2764	on_exticmd => sub {
		2765	my ($ns, $buf) = @_;
		2766
		2767	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2768
		2769	if (ref $msg) {
		2770	my ($type, $reply, @payload) =
		2771	"ARRAY" eq ref $msg
		2772	? @$msg
		2773	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2774
		2775	my @reply;
		2776
		2777	if (my $cb = $EXTICMD{$type}) {
		2778	@reply = $cb->($ns, @payload);
		2779	}
		2780
		2781	$ns->ext_reply ($reply, @reply)
		2782	if $reply;
		2783
		2784	} else {
		2785	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2786	}
		2787
		2788	cf::override;
		2789	},
		2790	);
		2791
		2792	=item $client->async (\&cb)
		2793
		2794	Create a new coroutine, running the specified callback. The coroutine will
		2795	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2796	or loss of connection).
		2797
		2798	=cut
		2799
		2800	sub cf::client::async {
		2801	my ($self, $cb) = @_;
		2802
		2803	my $coro = &Coro::async ($cb);
		2804
		2805	$coro->on_destroy (sub {
		2806	delete $self->{_coro}{$coro+0};
		2807	});
		2808
		2809	$self->{_coro}{$coro+0} = $coro;
		2810
		2811	$coro
		2812	}
		2813
		2814	cf::client->attach (
		2815	on_destroy => sub {
		2816	my ($ns) = @_;
		2817
		2818	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2819	},
		2820	);
		2821
		2822	=back
		2823
832		2824
833	=head2 SAFE SCRIPTING	2825	=head2 SAFE SCRIPTING
834		2826
835	Functions that provide a safe environment to compile and execute	2827	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	2828	snippets of perl code without them endangering the safety of the server
…		…
843	our $safe = new Safe "safe";	2835	our $safe = new Safe "safe";
844	our $safe_hole = new Safe::Hole;	2836	our $safe_hole = new Safe::Hole;
845		2837
846	$SIG{FPE} = 'IGNORE';	2838	$SIG{FPE} = 'IGNORE';
847		2839
848	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2840	$safe->permit_only (Opcode::opset qw(
		2841	:base_core :base_mem :base_orig :base_math
		2842	grepstart grepwhile mapstart mapwhile
		2843	sort time
		2844	));
849		2845
850	# here we export the classes and methods available to script code	2846	# here we export the classes and methods available to script code
851		2847
852	=pod	2848	=pod
853		2849
854	The following fucntions and emthods are available within a safe environment:	2850	The following functions and methods are available within a safe environment:
855		2851
856	cf::object contr pay_amount pay_player map	2852	cf::object
		2853	contr pay_amount pay_player map x y force_find force_add
		2854	insert remove name archname title slaying race decrease_ob_nr
		2855
857	cf::object::player player	2856	cf::object::player
858	cf::player peaceful	2857	player
859	cf::map trigger	2858
		2859	cf::player
		2860	peaceful
		2861
		2862	cf::map
		2863	trigger
860		2864
861	=cut	2865	=cut
862		2866
863	for (	2867	for (
864	["cf::object" => qw(contr pay_amount pay_player map)],	2868	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2869	insert remove inv name archname title slaying race
		2870	decrease_ob_nr)],
865	["cf::object::player" => qw(player)],	2871	["cf::object::player" => qw(player)],
866	["cf::player" => qw(peaceful)],	2872	["cf::player" => qw(peaceful)],
867	["cf::map" => qw(trigger)],	2873	["cf::map" => qw(trigger)],
868	) {	2874	) {
869	no strict 'refs';	2875	no strict 'refs';
…		…
940	=back	2946	=back
941		2947
942	=cut	2948	=cut
943		2949
944	#############################################################################	2950	#############################################################################
		2951	# the server's init and main functions
945		2952
946	=head2 EXTENSION DATABASE SUPPORT	2953	sub load_facedata($) {
		2954	my ($path) = @_;
947		2955
948	Crossfire maintains a very simple database for extension use. It can	2956	# HACK to clear player env face cache, we need some signal framework
949	currently store anything that can be serialised using Storable, which	2957	# for this (global event?)
950	excludes objects.	2958	%ext::player_env::MUSIC_FACE_CACHE = ();
951		2959
952	The parameter C<$family> should best start with the name of the extension	2960	my $enc = JSON::XS->new->utf8->canonical->relaxed;
953	using it, it should be unique.
954		2961
955	=over 4	2962	warn "loading facedata from $path\n";
956		2963
957	=item $hashref = cf::db_get $family	2964	my $facedata;
		2965	0 < aio_load $path, $facedata
		2966	or die "$path: $!";
958		2967
959	Return a hashref for use by the extension C<$family>, which can be	2968	$facedata = Coro::Storable::thaw $facedata;
960	modified. After modifications, you have to call C<cf::db_dirty> or
961	C<cf::db_sync>.
962		2969
963	=item $value = cf::db_get $family => $key	2970	$facedata->{version} == 2
		2971	or cf::cleanup "$path: version mismatch, cannot proceed.";
964		2972
965	Returns a single value from the database	2973	# patch in the exptable
966		2974	$facedata->{resource}{"res/exp_table"} = {
967	=item cf::db_put $family => $hashref	2975	type => FT_RSRC,
968		2976	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
969	Stores the given family hashref into the database. Updates are delayed, if
970	you want the data to be synced to disk immediately, use C<cf::db_sync>.
971
972	=item cf::db_put $family => $key => $value
973
974	Stores the given C<$value> in the family hash. Updates are delayed, if you
975	want the data to be synced to disk immediately, use C<cf::db_sync>.
976
977	=item cf::db_dirty
978
979	Marks the database as dirty, to be updated at a later time.
980
981	=item cf::db_sync
982
983	Immediately write the database to disk I<if it is dirty>.
984
985	=cut
986
987	our $DB;
988
989	{
990	my $path = cf::localdir . "/database.pst";
991
992	sub db_load() {
993	warn "loading database $path\n";#d# remove later
994	$DB = stat $path ? Storable::retrieve $path : { };
995	}
996
997	my $pid;
998
999	sub db_save() {
1000	warn "saving database $path\n";#d# remove later
1001	waitpid $pid, 0 if $pid;
1002	if (0 == ($pid = fork)) {
1003	$DB->{_meta}{version} = 1;
1004	Storable::nstore $DB, "$path~";
1005	rename "$path~", $path;
1006	cf::_exit 0 if defined $pid;
1007	}
1008	}
1009
1010	my $dirty;
1011
1012	sub db_sync() {
1013	db_save if $dirty;
1014	undef $dirty;
1015	}
1016
1017	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1018	db_sync;
1019	});	2977	};
		2978	cf::cede_to_tick;
1020		2979
1021	sub db_dirty() {
1022	$dirty = 1;
1023	$idle->start;
1024	}	2980	{
		2981	my $faces = $facedata->{faceinfo};
1025		2982
1026	sub db_get($;$) {	2983	while (my ($face, $info) = each %$faces) {
1027	@_ >= 2	2984	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1028	? $DB->{$_[0]}{$_[1]}	2985	cf::face::set_visibility $idx, $info->{visibility};
1029	: ($DB->{$_[0]} ||= { })	2986	cf::face::set_magicmap $idx, $info->{magicmap};
1030	}	2987	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2988	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1031		2989
1032	sub db_put($$;$) {	2990	cf::cede_to_tick;
1033	if (@_ >= 3) {
1034	$DB->{$_[0]}{$_[1]} = $_[2];
1035	} else {
1036	$DB->{$_[0]} = $_[1];
1037	}
1038	db_dirty;
1039	}
1040
1041	cf::global->attach (
1042	prio => 10000,
1043	on_cleanup => sub {
1044	db_sync;
1045	},	2991	}
1046	);
1047	}
1048		2992
1049	#############################################################################	2993	while (my ($face, $info) = each %$faces) {
1050	# the server's main()	2994	next unless $info->{smooth};
		2995	my $idx = cf::face::find $face
		2996	or next;
		2997	if (my $smooth = cf::face::find $info->{smooth}) {
		2998	cf::face::set_smooth $idx, $smooth;
		2999	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3000	} else {
		3001	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3002	}
1051		3003
1052	sub cfg_load {	3004	cf::cede_to_tick;
		3005	}
		3006	}
		3007
		3008	{
		3009	my $anims = $facedata->{animinfo};
		3010
		3011	while (my ($anim, $info) = each %$anims) {
		3012	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3013	cf::cede_to_tick;
		3014	}
		3015
		3016	cf::anim::invalidate_all; # d'oh
		3017	}
		3018
		3019	{
		3020	# TODO: for gcfclient pleasure, we should give resources
		3021	# that gcfclient doesn't grok a >10000 face index.
		3022	my $res = $facedata->{resource};
		3023
		3024	my $soundconf = delete $res->{"res/sound.conf"};
		3025
		3026	while (my ($name, $info) = each %$res) {
		3027	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3028	my $data;
		3029
		3030	if ($info->{type} & 1) {
		3031	# prepend meta info
		3032
		3033	my $meta = $enc->encode ({
		3034	name => $name,
		3035	%{ $info->{meta} || {} },
		3036	});
		3037
		3038	$data = pack "(w/a*)*", $meta, $info->{data};
		3039	} else {
		3040	$data = $info->{data};
		3041	}
		3042
		3043	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3044	cf::face::set_type $idx, $info->{type};
		3045
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	if ($soundconf) {
		3050	$soundconf = $enc->decode (delete $soundconf->{data});
		3051
		3052	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3053	my $sound = $soundconf->{compat}[$_]
		3054	or next;
		3055
		3056	my $face = cf::face::find "sound/$sound->[1]";
		3057	cf::sound::set $sound->[0] => $face;
		3058	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3059	}
		3060
		3061	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3062	my $face = cf::face::find "sound/$v";
		3063	cf::sound::set $k => $face;
		3064	}
		3065	}
		3066	}
		3067
		3068	1
		3069	}
		3070
		3071	register_exticmd fx_want => sub {
		3072	my ($ns, $want) = @_;
		3073
		3074	while (my ($k, $v) = each %$want) {
		3075	$ns->fx_want ($k, $v);
		3076	}
		3077	};
		3078
		3079	sub reload_regions {
		3080	# HACK to clear player env face cache, we need some signal framework
		3081	# for this (global event?)
		3082	%ext::player_env::MUSIC_FACE_CACHE = ();
		3083
		3084	load_resource_file "$MAPDIR/regions"
		3085	or die "unable to load regions file\n";
		3086
		3087	for (cf::region::list) {
		3088	$_->{match} = qr/$_->{match}/
		3089	if exists $_->{match};
		3090	}
		3091	}
		3092
		3093	sub reload_facedata {
		3094	load_facedata "$DATADIR/facedata"
		3095	or die "unable to load facedata\n";
		3096	}
		3097
		3098	sub reload_archetypes {
		3099	load_resource_file "$DATADIR/archetypes"
		3100	or die "unable to load archetypes\n";
		3101	#d# NEED to laod twice to resolve forward references
		3102	# this really needs to be done in an extra post-pass
		3103	# (which needs to be synchronous, so solve it differently)
		3104	load_resource_file "$DATADIR/archetypes"
		3105	or die "unable to load archetypes\n";
		3106	}
		3107
		3108	sub reload_treasures {
		3109	load_resource_file "$DATADIR/treasures"
		3110	or die "unable to load treasurelists\n";
		3111	}
		3112
		3113	sub reload_resources {
		3114	warn "reloading resource files...\n";
		3115
		3116	reload_regions;
		3117	reload_facedata;
		3118	#reload_archetypes;#d#
		3119	reload_archetypes;
		3120	reload_treasures;
		3121
		3122	warn "finished reloading resource files\n";
		3123	}
		3124
		3125	sub init {
		3126	reload_resources;
		3127	}
		3128
		3129	sub reload_config {
1053	open my $fh, "<:utf8", cf::confdir . "/config"	3130	open my $fh, "<:utf8", "$CONFDIR/config"
1054	or return;	3131	or return;
1055		3132
1056	local $/;	3133	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	3134	*CFG = YAML::Syck::Load <$fh>;
		3135
		3136	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3137
		3138	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3139	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3140
		3141	if (exists $CFG{mlockall}) {
		3142	eval {
		3143	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3144	and die "WARNING: m(un)lockall failed: $!\n";
		3145	};
		3146	warn $@ if $@;
		3147	}
1058	}	3148	}
1059		3149
1060	sub main {	3150	sub main {
1061	cfg_load;	3151	# we must not ever block the main coroutine
1062	db_load;	3152	local $Coro::idle = sub {
		3153	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3154	(async {
		3155	Event::one_event;
		3156	})->prio (Coro::PRIO_MAX);
		3157	};
		3158
		3159	reload_config;
		3160	db_init;
1063	load_extensions;	3161	load_extensions;
		3162
		3163	$TICK_WATCHER->start;
1064	Event::loop;	3164	Event::loop;
1065	}	3165	}
1066		3166
1067	#############################################################################	3167	#############################################################################
1068	# initialisation	3168	# initialisation and cleanup
1069		3169
1070	sub _perl_reload(&) {	3170	# install some emergency cleanup handlers
		3171	BEGIN {
		3172	for my $signal (qw(INT HUP TERM)) {
		3173	Event->signal (
		3174	reentrant => 0,
		3175	data => WF_AUTOCANCEL,
		3176	signal => $signal,
		3177	prio => 0,
		3178	cb => sub {
		3179	cf::cleanup "SIG$signal";
		3180	},
		3181	);
		3182	}
		3183	}
		3184
		3185	sub write_runtime {
		3186	my $runtime = "$LOCALDIR/runtime";
		3187
		3188	# first touch the runtime file to show we are still running:
		3189	# the fsync below can take a very very long time.
		3190
		3191	IO::AIO::aio_utime $runtime, undef, undef;
		3192
		3193	my $guard = cf::lock_acquire "write_runtime";
		3194
		3195	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3196	or return;
		3197
		3198	my $value = $cf::RUNTIME + 90 + 10;
		3199	# 10 is the runtime save interval, for a monotonic clock
		3200	# 60 allows for the watchdog to kill the server.
		3201
		3202	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3203	and return;
		3204
		3205	# always fsync - this file is important
		3206	aio_fsync $fh
		3207	and return;
		3208
		3209	# touch it again to show we are up-to-date
		3210	aio_utime $fh, undef, undef;
		3211
		3212	close $fh
		3213	or return;
		3214
		3215	aio_rename "$runtime~", $runtime
		3216	and return;
		3217
		3218	warn "runtime file written.\n";
		3219
		3220	1
		3221	}
		3222
		3223	sub emergency_save() {
		3224	my $freeze_guard = cf::freeze_mainloop;
		3225
		3226	warn "enter emergency perl save\n";
		3227
		3228	cf::sync_job {
		3229	# use a peculiar iteration method to avoid tripping on perl
		3230	# refcount bugs in for. also avoids problems with players
		3231	# and maps saved/destroyed asynchronously.
		3232	warn "begin emergency player save\n";
		3233	for my $login (keys %cf::PLAYER) {
		3234	my $pl = $cf::PLAYER{$login} or next;
		3235	$pl->valid or next;
		3236	$pl->save;
		3237	}
		3238	warn "end emergency player save\n";
		3239
		3240	warn "begin emergency map save\n";
		3241	for my $path (keys %cf::MAP) {
		3242	my $map = $cf::MAP{$path} or next;
		3243	$map->valid or next;
		3244	$map->save;
		3245	}
		3246	warn "end emergency map save\n";
		3247
		3248	warn "begin emergency database checkpoint\n";
		3249	BDB::db_env_txn_checkpoint $DB_ENV;
		3250	warn "end emergency database checkpoint\n";
		3251	};
		3252
		3253	warn "leave emergency perl save\n";
		3254	}
		3255
		3256	sub post_cleanup {
1071	my ($msg) = @_;	3257	my ($make_core) = @_;
1072		3258
1073	$msg->("reloading...");	3259	warn Carp::longmess "post_cleanup backtrace"
		3260	if $make_core;
		3261	}
1074		3262
1075	eval {	3263	sub do_reload_perl() {
1076	# cancel all watchers	3264	# can/must only be called in main
		3265	if ($Coro::current != $Coro::main) {
		3266	warn "can only reload from main coroutine";
		3267	return;
		3268	}
		3269
		3270	warn "reloading...";
		3271
		3272	warn "entering sync_job";
		3273
		3274	cf::sync_job {
		3275	cf::write_runtime; # external watchdog should not bark
		3276	cf::emergency_save;
		3277	cf::write_runtime; # external watchdog should not bark
		3278
		3279	warn "syncing database to disk";
		3280	BDB::db_env_txn_checkpoint $DB_ENV;
		3281
		3282	# if anything goes wrong in here, we should simply crash as we already saved
		3283
		3284	warn "cancelling all WF_AUTOCANCEL watchers";
1077	for (Event::all_watchers) {	3285	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	3286	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	3287	}
1080		3288
1081	# unload all extensions	3289	warn "flushing outstanding aio requests";
1082	for (@exts) {	3290	for (;;) {
1083	$msg->("unloading <$_>");	3291	BDB::flush;
1084	unload_extension $_;	3292	IO::AIO::flush;
		3293	Coro::cede;
		3294	last unless IO::AIO::nreqs || BDB::nreqs;
		3295	warn "iterate...";
		3296	}
		3297
		3298	++$RELOAD;
		3299
		3300	warn "cancelling all extension coros";
		3301	$_->cancel for values %EXT_CORO;
		3302	%EXT_CORO = ();
		3303
		3304	warn "removing commands";
		3305	%COMMAND = ();
		3306
		3307	warn "removing ext/exti commands";
		3308	%EXTCMD = ();
		3309	%EXTICMD = ();
		3310
		3311	warn "unloading/nuking all extensions";
		3312	for my $pkg (@EXTS) {
		3313	warn "... unloading $pkg";
		3314
		3315	if (my $cb = $pkg->can ("unload")) {
		3316	eval {
		3317	$cb->($pkg);
		3318	1
		3319	} or warn "$pkg unloaded, but with errors: $@";
1085	}	3320	}
1086		3321
		3322	warn "... nuking $pkg";
		3323	Symbol::delete_package $pkg;
		3324	}
		3325
1087	# unload all modules loaded from $LIBDIR	3326	warn "unloading all perl modules loaded from $LIBDIR";
1088	while (my ($k, $v) = each %INC) {	3327	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3328	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		3329
1091	$msg->("removing <$k>");	3330	warn "... unloading $k";
1092	delete $INC{$k};	3331	delete $INC{$k};
1093		3332
1094	$k =~ s/\.pm$//;	3333	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	3334	$k =~ s/\//::/g;
1096		3335
…		…
1099	}	3338	}
1100		3339
1101	Symbol::delete_package $k;	3340	Symbol::delete_package $k;
1102	}	3341	}
1103		3342
1104	# sync database to disk
1105	cf::db_sync;
1106
1107	# get rid of safe::, as good as possible	3343	warn "getting rid of safe::, as good as possible";
1108	Symbol::delete_package "safe::$_"	3344	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3345	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		3346
1111	# remove register_script_function callbacks
1112	# TODO
1113
1114	# unload cf.pm "a bit"	3347	warn "unloading cf.pm \"a bit\"";
1115	delete $INC{"cf.pm"};	3348	delete $INC{"cf.pm"};
		3349	delete $INC{"cf/pod.pm"};
1116		3350
1117	# don't, removes xs symbols, too,	3351	# don't, removes xs symbols, too,
1118	# and global variables created in xs	3352	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	3353	#Symbol::delete_package __PACKAGE__;
1120		3354
1121	# reload cf.pm	3355	warn "unload completed, starting to reload now";
		3356
1122	$msg->("reloading cf.pm");	3357	warn "reloading cf.pm";
1123	require cf;	3358	require cf;
		3359	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		3360
1125	# load config and database again	3361	warn "loading config and database again";
1126	cf::cfg_load;	3362	cf::reload_config;
1127	cf::db_load;
1128		3363
1129	# load extensions	3364	warn "loading extensions";
1130	$msg->("load extensions");
1131	cf::load_extensions;	3365	cf::load_extensions;
1132		3366
1133	# reattach attachments to objects	3367	warn "reattaching attachments to objects/players";
1134	$msg->("reattach");	3368	_global_reattach; # objects, sockets
1135	_global_reattach;	3369	warn "reattaching attachments to maps";
		3370	reattach $_ for values %MAP;
		3371	warn "reattaching attachments to players";
		3372	reattach $_ for values %PLAYER;
		3373
		3374	warn "leaving sync_job";
		3375
		3376	1
		3377	} or do {
		3378	warn $@;
		3379	warn "error while reloading, exiting.";
		3380	exit 1;
1136	};	3381	};
1137	$msg->($@) if $@;
1138		3382
1139	$msg->("reloaded");	3383	warn "reloaded";
1140	};	3384	};
1141		3385
1142	sub perl_reload() {	3386	our $RELOAD_WATCHER; # used only during reload
1143	_perl_reload {	3387
1144	warn $_[0];	3388	sub reload_perl() {
1145	print "$_[0]\n";	3389	# doing reload synchronously and two reloads happen back-to-back,
		3390	# coro crashes during coro_state_free->destroy here.
		3391
		3392	$RELOAD_WATCHER ||= Event->timer (
		3393	reentrant => 0,
		3394	after => 0,
		3395	data => WF_AUTOCANCEL,
		3396	cb => sub {
		3397	do_reload_perl;
		3398	undef $RELOAD_WATCHER;
		3399	},
1146	};	3400	);
1147	}	3401	}
1148		3402
1149	register "<global>", __PACKAGE__;
1150
1151	register_command "perl-reload" => sub {	3403	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	3404	my ($who, $arg) = @_;
1153		3405
1154	if ($who->flag (FLAG_WIZ)) {	3406	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	3407	$who->message ("reloading server.");
1156	warn $_[0];	3408	async { reload_perl };
1157	$who->message ($_[0]);	3409	}
		3410	};
		3411
		3412	unshift @INC, $LIBDIR;
		3413
		3414	my $bug_warning = 0;
		3415
		3416	our @WAIT_FOR_TICK;
		3417	our @WAIT_FOR_TICK_BEGIN;
		3418
		3419	sub wait_for_tick {
		3420	return unless $TICK_WATCHER->is_active;
		3421	return if $Coro::current == $Coro::main;
		3422
		3423	my $signal = new Coro::Signal;
		3424	push @WAIT_FOR_TICK, $signal;
		3425	$signal->wait;
		3426	}
		3427
		3428	sub wait_for_tick_begin {
		3429	return unless $TICK_WATCHER->is_active;
		3430	return if $Coro::current == $Coro::main;
		3431
		3432	my $signal = new Coro::Signal;
		3433	push @WAIT_FOR_TICK_BEGIN, $signal;
		3434	$signal->wait;
		3435	}
		3436
		3437	my $min = 1e6;#d#
		3438	my $avg = 10;
		3439	$TICK_WATCHER = Event->timer (
		3440	reentrant => 0,
		3441	parked => 1,
		3442	prio => 0,
		3443	at => $NEXT_TICK || $TICK,
		3444	data => WF_AUTOCANCEL,
		3445	cb => sub {
		3446	if ($Coro::current != $Coro::main) {
		3447	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3448	unless ++$bug_warning > 10;
		3449	return;
		3450	}
		3451
		3452	$NOW = $tick_start = Event::time;
		3453
		3454	cf::server_tick; # one server iteration
		3455
		3456	0 && sync_job {#d#
		3457	for(1..10) {
		3458	my $t = Event::time;
		3459	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3460	or die;
		3461
		3462	$map->width (50);
		3463	$map->height (50);
		3464	$map->alloc;
		3465	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3466	my $t = Event::time - $t;
		3467
		3468	#next unless $t < 0.0013;#d#
		3469	if ($t < $min) {
		3470	$min = $t;
		3471	}
		3472	$avg = $avg * 0.99 + $t * 0.01;
		3473	}
		3474	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3475	exit 0;
		3476	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1158	};	3477	};
1159	}
1160	};
1161		3478
1162	unshift @INC, $LIBDIR;	3479	$RUNTIME += $TICK;
1163
1164	$TICK_WATCHER = Event->timer (
1165	prio => 0,
1166	at => $NEXT_TICK || 1,
1167	data => WF_AUTOCANCEL,
1168	cb => sub {
1169	cf::server_tick; # one server iteration
1170
1171	my $NOW = Event::time;
1172	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
		3481
		3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3484	Coro::async_pool {
		3485	write_runtime
		3486	or warn "ERROR: unable to write runtime file: $!";
		3487	};
		3488	}
		3489
		3490	# my $AFTER = Event::time;
		3491	# warn $AFTER - $NOW;#d#
		3492
		3493	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3494	$sig->send;
		3495	}
		3496	while (my $sig = shift @WAIT_FOR_TICK) {
		3497	$sig->send;
		3498	}
		3499
		3500	$NOW = Event::time;
1173		3501
1174	# if we are delayed by four ticks or more, skip them all	3502	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3503	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1176		3504
1177	$TICK_WATCHER->at ($NEXT_TICK);	3505	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	3506	$TICK_WATCHER->start;
		3507
		3508	$LOAD = ($NOW - $tick_start) / $TICK;
		3509	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3510
		3511	_post_tick;
		3512
		3513
1179	},	3514	},
1180	);	3515	);
1181		3516
		3517	{
		3518	BDB::max_poll_time $TICK * 0.1;
		3519	$BDB_POLL_WATCHER = Event->io (
		3520	reentrant => 0,
		3521	fd => BDB::poll_fileno,
		3522	poll => 'r',
		3523	prio => 0,
		3524	data => WF_AUTOCANCEL,
		3525	cb => \&BDB::poll_cb,
		3526	);
		3527	BDB::min_parallel 8;
		3528
		3529	BDB::set_sync_prepare {
		3530	my $status;
		3531	my $current = $Coro::current;
		3532	(
		3533	sub {
		3534	$status = $!;
		3535	$current->ready; undef $current;
		3536	},
		3537	sub {
		3538	Coro::schedule while defined $current;
		3539	$! = $status;
		3540	},
		3541	)
		3542	};
		3543
		3544	unless ($DB_ENV) {
		3545	$DB_ENV = BDB::db_env_create;
		3546
		3547	cf::sync_job {
		3548	eval {
		3549	BDB::db_env_open
		3550	$DB_ENV,
		3551	$BDBDIR,
		3552	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3553	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3554	0666;
		3555
		3556	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3557
		3558	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3559	$DB_ENV->set_lk_detect;
		3560	};
		3561
		3562	cf::cleanup "db_env_open(db): $@" if $@;
		3563	};
		3564	}
		3565	}
		3566
		3567	{
		3568	IO::AIO::min_parallel 8;
		3569
		3570	undef $Coro::AIO::WATCHER;
1182	IO::AIO::max_poll_time $TICK * 0.2;	3571	IO::AIO::max_poll_time $TICK * 0.1;
1183		3572	$AIO_POLL_WATCHER = Event->io (
1184	Event->io (fd => IO::AIO::poll_fileno,	3573	reentrant => 0,
1185	poll => 'r',
1186	prio => 5,
1187	data => WF_AUTOCANCEL,	3574	data => WF_AUTOCANCEL,
		3575	fd => IO::AIO::poll_fileno,
		3576	poll => 'r',
		3577	prio => 6,
1188	cb => \&IO::AIO::poll_cb);	3578	cb => \&IO::AIO::poll_cb,
		3579	);
		3580	}
		3581
		3582	my $_log_backtrace;
		3583
		3584	sub _log_backtrace {
		3585	my ($msg, @addr) = @_;
		3586
		3587	$msg =~ s/\n//;
		3588
		3589	# limit the # of concurrent backtraces
		3590	if ($_log_backtrace < 2) {
		3591	++$_log_backtrace;
		3592	async {
		3593	my @bt = fork_call {
		3594	@addr = map { sprintf "%x", $_ } @addr;
		3595	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3596	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3597	or die "addr2line: $!";
		3598
		3599	my @funcs;
		3600	my @res = <$fh>;
		3601	chomp for @res;
		3602	while (@res) {
		3603	my ($func, $line) = splice @res, 0, 2, ();
		3604	push @funcs, "[$func] $line";
		3605	}
		3606
		3607	@funcs
		3608	};
		3609
		3610	LOG llevInfo, "[ABT] $msg\n";
		3611	LOG llevInfo, "[ABT] $_\n" for @bt;
		3612	--$_log_backtrace;
		3613	};
		3614	} else {
		3615	LOG llevInfo, "[ABT] $msg\n";
		3616	LOG llevInfo, "[ABT] [suppressed]\n";
		3617	}
		3618	}
		3619
		3620	# load additional modules
		3621	use cf::pod;
		3622
		3623	END { cf::emergency_save }
1189		3624
1190	1	3625	1
1191		3626

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