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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.380 by root, Mon Oct 8 13:58:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro;	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
18		25
19	use IO::AIO 2.3;	26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
20	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
21	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
22		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
23	use Event; $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
24		44
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
27		47
28	$Coro::main->prio (Coro::PRIO_MIN);	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		49
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		51
32	our %COMMAND = ();	52	our %COMMAND = ();
33	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
35		60
		61	our $RELOAD; # number of reloads so far
36	our @EVENT;	62	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		63
39	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(!)
40	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	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 $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
42		89
43	our %CFG;	90	our %CFG;
44		91
45	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
		93	our $RUNTIME;
		94
		95	our (%PLAYER, %PLAYER_LOADING); # all users
		96	our (%MAP, %MAP_LOADING ); # all maps
		97	our $LINK_MAP; # the special {link} map, which is always available
		98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
		105
		106	binmode STDOUT;
		107	binmode STDERR;
		108
		109	# read virtual server time, if available
		110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		111	open my $fh, "<", "$LOCALDIR/runtime"
		112	or die "unable to read runtime file: $!";
		113	$RUNTIME = <$fh> + 0.;
		114	}
		115
		116	mkdir $_
		117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		118
		119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
46		122
47	#############################################################################	123	#############################################################################
48		124
49	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
50		126
…		…
52		128
53	=item $cf::UPTIME	129	=item $cf::UPTIME
54		130
55	The timestamp of the server start (so not actually an uptime).	131	The timestamp of the server start (so not actually an uptime).
56		132
57	=item $cf::LIBDIR	133	=item $cf::RUNTIME
58		134
59	The perl library directory, where extensions and cf-specific modules can	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	136	every server tick.
		137
		138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		141
		142	Various directories - "/etc", read-only install directory, perl-library
		143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
		146
		147	=item $cf::NOW
		148
		149	The time of the last (current) server tick.
61		150
62	=item $cf::TICK	151	=item $cf::TICK
63		152
64	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
65		164
66	=item %cf::CFG	165	=item %cf::CFG
67		166
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
70		181
71	=back	182	=back
72		183
73	=cut	184	=cut
74		185
75	BEGIN {	186	BEGIN {
76	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	188	my $msg = join "", @_;
		189
78	$msg .= "\n"	190	$msg .= "\n"
79	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
80		192
81	print STDERR "cfperl: $msg";	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
82	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
83	};	196	};
84	}	197	}
85		198
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		206
93	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	208	# within the Safe compartment.
95	for my $pkg (qw(	209	for my $pkg (qw(
96	cf::global cf::attachable	210	cf::global cf::attachable
…		…
105		219
106	$Event::DIED = sub {	220	$Event::DIED = sub {
107	warn "error in event callback: @_";	221	warn "error in event callback: @_";
108	};	222	};
109		223
110	my %ext_pkg;	224	#############################################################################
111	my @exts;
112	my @hook;
113		225
114	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
115		227
116	=over 4	228	=over 4
117		229
118	=cut	230	=item dumpval $ref
119		231
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
121		252
122	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
123		254
124	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
125		256
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
134		258
135	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
136		260
137	=cut	261	=cut
138		262
139	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
141	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
		267
		268	=item cf::lock_wait $string
		269
		270	Wait until the given lock is available. See cf::lock_acquire.
		271
		272	=item my $lock = cf::lock_acquire $string
		273
		274	Wait until the given lock is available and then acquires it and returns
		275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		276	for example when the coroutine gets canceled), the lock is automatically
		277	returned.
		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
		282	Lock names should begin with a unique identifier (for example, cf::map::find
		283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
		289	=cut
		290
		291	our %LOCK;
		292	our %LOCKER;#d#
		293
		294	sub lock_wait($) {
		295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
		301
		302	# wait for lock, if any
		303	while ($LOCK{$key}) {
		304	push @{ $LOCK{$key} }, $Coro::current;
		305	Coro::schedule;
		306	}
		307	}
		308
		309	sub lock_acquire($) {
		310	my ($key) = @_;
		311
		312	# wait, to be sure we are not locked
		313	lock_wait $key;
		314
		315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
		317
		318	Coro::guard {
		319	delete $LOCKER{$key};#d#
		320	# wake up all waiters, to be on the safe side
		321	$_->ready for @{ delete $LOCK{$key} };
		322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
		409	=item cf::sync_job { BLOCK }
		410
		411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		412	is always able to handle events or runnable, as Crossfire TRT is only
		413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
		415
		416	If it must be done, put the blocking parts into C<sync_job>. This will run
		417	the given BLOCK in another coroutine while waiting for the result. The
		418	server will be frozen during this time, so the block should either finish
		419	fast or be very important.
		420
		421	=cut
		422
		423	sub sync_job(&) {
		424	my ($job) = @_;
		425
		426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
		429	# this is the main coro, too bad, we have to block
		430	# till the operation succeeds, freezing the server :/
		431
		432	LOG llevError | logBacktrace, Carp::longmess "sync job";#d#
		433
		434	# TODO: use suspend/resume instead
		435	# (but this is cancel-safe)
		436	my $freeze_guard = freeze_mainloop;
		437
		438	my $busy = 1;
		439	my @res;
		440
		441	(async {
		442	$Coro::current->desc ("sync job coro");
		443	@res = eval { $job->() };
		444	warn $@ if $@;
		445	undef $busy;
		446	})->prio (Coro::PRIO_MAX);
		447
		448	while ($busy) {
		449	Coro::cede or Event::one_event;
		450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
		458
		459	wantarray ? @res : $res[0]
		460	} else {
		461	# we are in another coroutine, how wonderful, everything just works
		462
		463	$job->()
		464	}
		465	}
		466
		467	=item $coro = cf::async_ext { BLOCK }
		468
		469	Like async, but this coro is automatically being canceled when the
		470	extension calling this is being unloaded.
		471
		472	=cut
		473
		474	sub async_ext(&) {
		475	my $cb = shift;
		476
		477	my $coro = &Coro::async ($cb);
		478
		479	$coro->on_destroy (sub {
		480	delete $EXT_CORO{$coro+0};
		481	});
		482	$EXT_CORO{$coro+0} = $coro;
		483
		484	$coro
		485	}
		486
		487	=item fork_call { }, $args
		488
		489	Executes the given code block with the given arguments in a seperate
		490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
		493
		494	=cut
		495
		496	sub fork_call(&@) {
		497	my ($cb, @args) = @_;
		498
		499	# we seemingly have to make a local copy of the whole thing,
		500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
		502
		503	my @res = Coro::Util::fork_eval {
		504	reset_signals;
		505	&$cb
		506	}, @args;
		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
		560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	647	}
143		648
144	=back	649	=back
145		650
146	=cut	651	=cut
…		…
153	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
155		660
156	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
157	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	663	Crossfire TRT).
159		664
160	=over 4	665	=over 4
161		666
162	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
163		668
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	783	our @CB_MAP = ();
279		784
280	my %attachment;	785	my %attachment;
281		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
282	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
284		795
285	use sort 'stable';	796	use sort 'stable';
286		797
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
321		832
322	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		837
327	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	839	my $pkg = shift @arg;
329		840
330	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
360	}	871	}
361		872
362	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
363	} else {	874	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	876	}
366		877
367	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
368	}	879	}
369		880
…		…
371	if (ref $_[0]) {	882	if (ref $_[0]) {
372	_object_attach @_;	883	_object_attach @_;
373	} else {	884	} else {
374	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
375	}	886	}
		887	_recalc_want;
376	};	888	};
377		889
378	# all those should be optimised	890	# all those should be optimised
379	sub cf::attachable::detach {	891	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
384	reattach ($obj);	896	reattach ($obj);
385	} else {	897	} else {
386	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
387	}	899	}
		900	_recalc_want;
388	};	901	};
389		902
390	sub cf::attachable::attached {	903	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
392		905
…		…
407	";	920	";
408	die if $@;	921	die if $@;
409	}	922	}
410		923
411	our $override;	924	our $override;
412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
413		926
414	sub override {	927	sub override {
415	$override = 1;	928	$override = 1;
416	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
417	}	930	}
418		931
419	sub do_invoke {	932	sub do_invoke {
420	my $event = shift;	933	my $event = shift;
421	my $callbacks = shift;	934	my $callbacks = shift;
422		935
423	@invoke_results = ();	936	@INVOKE_RESULTS = ();
424		937
425	local $override;	938	local $override;
426		939
427	for (@$callbacks) {	940	for (@$callbacks) {
428	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
445		958
446	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
447		960
448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
449	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
450	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
451		964
452	=back	965	=back
453		966
454	=cut	967	=cut
455		968
456	#############################################################################	969	#############################################################################
457	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
		982
		983	sub reattach {
		984	# basically do the same as instantiate, without calling instantiate
		985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		988
		989	my $registry = $obj->registry;
		990
		991	@$registry = ();
		992
		993	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		994
		995	for my $name (keys %{ $obj->{_attachment} || {} }) {
		996	if (my $attach = $attachment{$name}) {
		997	for (@$attach) {
		998	my ($klass, @attach) = @$_;
		999	_attach $registry, $klass, @attach;
		1000	}
		1001	} else {
		1002	warn "object uses attachment '$name' that is not available, postponing.\n";
		1003	}
		1004	}
		1005	}
458		1006
459	cf::attachable->attach (	1007	cf::attachable->attach (
460	prio => -1000000,	1008	prio => -1000000,
461	on_instantiate => sub {	1009	on_instantiate => sub {
462	my ($obj, $data) = @_;	1010	my ($obj, $data) = @_;
…		…
467	my ($name, $args) = @$_;	1015	my ($name, $args) = @$_;
468		1016
469	$obj->attach ($name, %{$args || {} });	1017	$obj->attach ($name, %{$args || {} });
470	}	1018	}
471	},	1019	},
472	on_reattach => sub {	1020	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	1021	on_clone => sub {
493	my ($src, $dst) = @_;	1022	my ($src, $dst) = @_;
494		1023
495	@{$dst->registry} = @{$src->registry};	1024	@{$dst->registry} = @{$src->registry};
496		1025
…		…
502	);	1031	);
503		1032
504	sub object_freezer_save {	1033	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
506		1035
		1036	sync_job {
507	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
508	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
510		1041
511	if (open my $fh, ">:raw", "$filename~") {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1045	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	1046	close $fh;
		1047
		1048	if (@$objs) {
		1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1050	chmod SAVE_MODE, $fh;
		1051	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1052	aio_write $fh, 0, (length $data), $data, 0;
		1053	aio_fsync $fh if $cf::USE_FSYNC;
		1054	close $fh;
520	rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
		1056	}
		1057	} else {
		1058	aio_unlink "$filename.pst";
		1059	}
		1060
		1061	aio_rename "$filename~", $filename;
521	} else {	1062	} else {
522	unlink "$filename.pst";	1063	warn "FATAL: $filename~: $!\n";
523	}	1064	}
524
525	rename "$filename~", $filename;
526	} else {	1065	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	1066	aio_unlink $filename;
531	unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
		1068	}
532	}	1069	};
533	}	1070	}
534		1071
535	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
537		1074
…		…
541	}	1078	}
542		1079
543	sub object_thawer_load {	1080	sub object_thawer_load {
544	my ($filename) = @_;	1081	my ($filename) = @_;
545		1082
546	local $/;
547
548	my $av;
549
550	#TODO: use sysread etc.
551	if (open my $data, "<:raw:perlio", $filename) {
552	$data = <$data>;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };
555	}
556	return ($data, $av);	1083	my ($data, $av);
557	}
558		1084
559	()	1085	(aio_load $filename, $data) >= 0
		1086	or return;
		1087
		1088	unless (aio_stat "$filename.pst") {
		1089	(aio_load "$filename.pst", $av) >= 0
		1090	or return;
		1091
		1092	my $st = eval { Coro::Storable::thaw $av }
		1093	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1094	$av = $st->{objs};
		1095	}
		1096
		1097	utf8::decode (my $decname = $filename);
		1098	warn sprintf "loading %s (%d,%d)\n",
		1099	$decname, length $data, scalar @{$av || []};
		1100
		1101	($data, $av)
560	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
561		1109
562	#############################################################################	1110	#############################################################################
563	# command handling &c	1111	# command handling &c
564		1112
565	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1127	}
580		1128
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1130
583	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
584		1136
585	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
586	called.	1138	called.
587		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
588	=cut	1151	=cut
589		1152
590	sub register_extcmd {	1153	sub register_extcmd {
591	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
592		1155
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
597	}	1163	}
598		1164
599	cf::player->attach (	1165	cf::player->attach (
600	on_command => sub {	1166	on_command => sub {
601	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
610	cf::override;	1176	cf::override;
611	},	1177	},
612	on_extcmd => sub {	1178	on_extcmd => sub {
613	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
614		1180
615	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
616		1182
617	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
620	$pl->ext_reply ($msg->{msgid}, %reply);
621	}
622	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
623	} else {	1198	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
625	}	1200	}
626		1201
627	cf::override;	1202	cf::override;
628	},	1203	},
629	);	1204	);
630		1205
		1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
		1210	for my $path (<$LIBDIR/*.ext>) {
		1211	next unless -r $path;
		1212
		1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
		1270	}
		1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
		1276	};
		1277	}
		1278
		1279	#############################################################################
		1280
		1281	=back
		1282
		1283	=head2 CORE EXTENSIONS
		1284
		1285	Functions and methods that extend core crossfire objects.
		1286
		1287	=cut
		1288
		1289	package cf::player;
		1290
		1291	use Coro::AIO;
		1292
		1293	=head3 cf::player
		1294
		1295	=over 4
		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
		1311	=item cf::player::find $login
		1312
		1313	Returns the given player object, loading it if necessary (might block).
		1314
		1315	=cut
		1316
		1317	sub playerdir($) {
		1318	"$PLAYERDIR/"
		1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1320	}
		1321
		1322	sub path($) {
		1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1324
		1325	(playerdir $login) . "/playerdata"
		1326	}
		1327
		1328	sub find_active($) {
		1329	$cf::PLAYER{$_[0]}
		1330	and $cf::PLAYER{$_[0]}->active
		1331	and $cf::PLAYER{$_[0]}
		1332	}
		1333
		1334	sub exists($) {
		1335	my ($login) = @_;
		1336
		1337	$cf::PLAYER{$login}
		1338	or cf::sync_job { !aio_stat path $login }
		1339	}
		1340
		1341	sub find($) {
		1342	return $cf::PLAYER{$_[0]} || do {
		1343	my $login = $_[0];
		1344
		1345	my $guard = cf::lock_acquire "user_find:$login";
		1346
		1347	$cf::PLAYER{$_[0]} || do {
		1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
		1356	or return;
		1357
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
		1616
		1617	=back
		1618
		1619	=head3 cf::map
		1620
		1621	=over 4
		1622
		1623	=cut
		1624
		1625	package cf::map;
		1626
		1627	use Fcntl;
		1628	use Coro::AIO;
		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
		1634	our $MAX_RESET = 3600;
		1635	our $DEFAULT_RESET = 3000;
		1636
		1637	sub generate_random_map {
		1638	my ($self, $rmp) = @_;
		1639	# mit "rum" bekleckern, nicht
		1640	$self->_create_random_map (
		1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1644	$rmp->{exit_on_final_map},
		1645	$rmp->{xsize}, $rmp->{ysize},
		1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
631	sub register {	1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
632	my ($base, $pkg) = @_;	1677	my ($self, $merge) = @_;
633		1678
634	#TODO	1679	# we have to keep some variables in memory intact
635	}	1680	local $self->{path};
		1681	local $self->{load_path};
636		1682
637	sub load_extension {	1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
638	my ($path) = @_;	1687	my ($path, $base) = @_;
639		1688
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1689	$path = "$path"; # make sure its a string
641	my $base = $1;
642	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645		1690
646	warn "loading '$path' into '$pkg'\n";	1691	$path =~ s/\.map$//;
647		1692
648	open my $fh, "<:utf8", $path	1693	# map plan:
649	or die "$path: $!";	1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
650		1701
651	my $source =	1702	$path =~ s/$PATH_SEP/\//go;
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656		1703
657	eval $source	1704	# treat it as relative path if it starts with
658	or die $@ ? "$path: $@\n"	1705	# something that looks reasonable
659	: "extension disabled.\n";	1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
660		1708
661	push @exts, $pkg;	1709	$base =~ s{[^/]+/?$}{};
662	$ext_pkg{$base} = $pkg;	1710	$path = "$base/$path";
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	1711	}
680		1712
681	# remove commands	1713	for ($path) {
682	for my $name (keys %COMMAND) {	1714	redo if s{//}{/};
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
684		1718
685	if (@cb) {	1719	$path
686	$COMMAND{$name} = \@cb;	1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
		1780	}
		1781
		1782	# and all this just because we cannot iterate over
		1783	# all maps in C++...
		1784	sub change_all_map_light {
		1785	my ($change) = @_;
		1786
		1787	$_->change_map_light ($change)
		1788	for grep $_->outdoor, values %cf::MAP;
		1789	}
		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
		1807	sub load_header_from($) {
		1808	my ($self, $path) = @_;
		1809
		1810	utf8::encode $path;
		1811	my $f = new_from_file cf::object::thawer $path
		1812	or return;
		1813
		1814	$self->_load_header ($f)
		1815	or return;
		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
687	} else {	1861	} else {
688	delete $COMMAND{$name};	1862	$self->load_header_orig
689	}	1863	or return;
		1864	$self->prepare_orig;
		1865	}
		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
		1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
690	}	1873	1
		1874	}
691		1875
692	# remove extcmds	1876	sub find;
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1877	sub find {
694	delete $EXTCMD{$name};	1878	my ($path, $origin) = @_;
		1879
		1880	$path = normalise $path, $origin && $origin->path;
		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
		1883	cf::lock_wait "map_find:$path";
		1884
		1885	$cf::MAP{$path} || do {
		1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
		1889	my $map = new_from_path cf::map $path
		1890	or return;
		1891
		1892	$map->{last_save} = $cf::RUNTIME;
		1893
		1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
		1902	$map->reset;
		1903	return find $path;
		1904	}
		1905
		1906	$cf::MAP{$path} = $map
		1907	}
		1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
		1912
		1913	sub load {
		1914	my ($self) = @_;
		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
		1918	my $path = $self->{path};
		1919
695	}	1920	{
		1921	my $guard = cf::lock_acquire "map_data:$path";
696		1922
697	if (my $cb = $pkg->can ("unload")) {	1923	return unless $self->valid;
698	eval {	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
699	$cb->($pkg);	1925
		1926	$self->in_memory (cf::MAP_LOADING);
		1927
		1928	$self->alloc;
		1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
		1936	or return;
		1937
		1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1939	if delete $self->{load_original};
		1940
		1941	if (my $uniq = $self->uniq_path) {
		1942	utf8::encode $uniq;
		1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
		1945	$self->clear_unique_items;
		1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
700	1	1949	}
701	} or warn "$pkg unloaded, but with errors: $@";	1950	}
702	}
703		1951
704	Symbol::delete_package $pkg;	1952	$f->resolve_delayed_derefs;
705	}
706		1953
707	sub load_extensions {	1954	cf::cede_to_tick;
708	for my $ext (<$LIBDIR/*.ext>) {	1955	# now do the right thing for maps
709	next unless -r $ext;	1956	$self->link_multipart_objects;
710	eval {	1957	$self->difficulty ($self->estimate_difficulty)
711	load_extension $ext;	1958	unless $self->difficulty;
712	1	1959	cf::cede_to_tick;
713	} or warn "$ext not loaded: $@";
714	}
715	}
716		1960
717	#############################################################################	1961	unless ($self->{deny_activate}) {
718	# load/save/clean perl data associated with a map	1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
		1968	$self->activate;
		1969	}
719		1970
720	*cf::mapsupport::on_clean = sub {	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
		1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
721	my ($map) = @_;	1994	my ($map) = @_;
722		1995
723	my $path = $map->tmpname;	1996	my @neigh; # diagonal neighbours
724	defined $path or return;
725		1997
726	unlink "$path.pst";	1998	for (0 .. 3) {
727	};	1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
728		2004
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
730		2009
731	#############################################################################	2010	for (grep defined $_->[0], @neigh) {
732	# load/save perl data associated with player->ob objects	2011	my ($path, $origin) = @$_;
733		2012	my $neigh = find $path, $origin
734	sub all_objects(@) {	2013	or next;
735	@_, map all_objects ($_->inv), @_	2014	$neigh->load;
		2015	}
736	}	2016	}
737		2017
738	# TODO: compatibility cruft, remove when no longer needed	2018	sub find_sync {
739	cf::player->attach (	2019	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		2020
743	for my $o (all_objects $pl->ob) {	2021	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2022	}
745	$o->set_ob_key_value ("_perl_data");
746		2023
747	%$o = %{ Storable::thaw pack "H*", $value };	2024	sub do_load_sync {
		2025	my ($map) = @_;
		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	$Coro::current->{desc} = "map prefetcher";
		2049
		2050	while (%MAP_PREFETCH) {
		2051	while (my ($k, $v) = each %MAP_PREFETCH) {
		2052	if (my $map = find $k) {
		2053	$map->load if $v;
		2054	}
		2055
		2056	delete $MAP_PREFETCH{$k};
748	}	2057	}
749	}	2058	}
		2059	undef $MAP_PREFETCHER;
		2060	};
		2061	$MAP_PREFETCHER->prio (6);
		2062
		2063	()
		2064	}
		2065
		2066	sub save {
		2067	my ($self) = @_;
		2068
		2069	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2070
		2071	$self->{last_save} = $cf::RUNTIME;
		2072
		2073	return unless $self->dirty;
		2074
		2075	my $save = $self->save_path; utf8::encode $save;
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->{load_path} = $save;
		2079
		2080	return if $self->{deny_save};
		2081
		2082	local $self->{last_access} = $self->last_access;#d#
		2083
		2084	cf::async {
		2085	$Coro::current->{desc} = "map player save";
		2086	$_->contr->save for $self->players;
		2087	};
		2088
		2089	if ($uniq) {
		2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2091	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2092	} else {
		2093	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	2094	}
751	);	2095	}
752		2096
753	#############################################################################	2097	sub swap_out {
		2098	my ($self) = @_;
754		2099
755	=head2 CORE EXTENSIONS	2100	# save first because save cedes
		2101	$self->save;
756		2102
757	Functions and methods that extend core crossfire objects.	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
758		2104
759	=head3 cf::player	2105	return if $self->players;
		2106	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2107	return if $self->{deny_save};
		2108
		2109	$self->in_memory (cf::MAP_SWAPPED);
		2110
		2111	$self->deactivate;
		2112	$_->clear_links_to ($self) for values %cf::MAP;
		2113	$self->clear;
		2114	}
		2115
		2116	sub reset_at {
		2117	my ($self) = @_;
		2118
		2119	# TODO: safety, remove and allow resettable per-player maps
		2120	return 1e99 if $self->{deny_reset};
		2121
		2122	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2123	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2124
		2125	$time + $to
		2126	}
		2127
		2128	sub should_reset {
		2129	my ($self) = @_;
		2130
		2131	$self->reset_at <= $cf::RUNTIME
		2132	}
		2133
		2134	sub reset {
		2135	my ($self) = @_;
		2136
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2138
		2139	return if $self->players;
		2140
		2141	warn "resetting map ", $self->path;
		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	# need to save uniques path
		2146	unless ($self->{deny_save}) {
		2147	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2148
		2149	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2150	if $uniq;
		2151	}
		2152
		2153	delete $cf::MAP{$self->path};
		2154
		2155	$self->deactivate;
		2156	$_->clear_links_to ($self) for values %cf::MAP;
		2157	$self->clear;
		2158
		2159	$self->unlink_save;
		2160	$self->destroy;
		2161	}
		2162
		2163	my $nuke_counter = "aaaa";
		2164
		2165	sub nuke {
		2166	my ($self) = @_;
		2167
		2168	{
		2169	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2170
		2171	delete $cf::MAP{$self->path};
		2172
		2173	$self->unlink_save;
		2174
		2175	bless $self, "cf::map";
		2176	delete $self->{deny_reset};
		2177	$self->{deny_save} = 1;
		2178	$self->reset_timeout (1);
		2179	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2180
		2181	$cf::MAP{$self->path} = $self;
		2182	}
		2183
		2184	$self->reset; # polite request, might not happen
		2185	}
		2186
		2187	=item $maps = cf::map::tmp_maps
		2188
		2189	Returns an arrayref with all map paths of currently instantiated and saved
		2190	maps. May block.
		2191
		2192	=cut
		2193
		2194	sub tmp_maps() {
		2195	[
		2196	map {
		2197	utf8::decode $_;
		2198	/\.map$/
		2199	? normalise $_
		2200	: ()
		2201	} @{ aio_readdir $TMPDIR or [] }
		2202	]
		2203	}
		2204
		2205	=item $maps = cf::map::random_maps
		2206
		2207	Returns an arrayref with all map paths of currently instantiated and saved
		2208	random maps. May block.
		2209
		2210	=cut
		2211
		2212	sub random_maps() {
		2213	[
		2214	map {
		2215	utf8::decode $_;
		2216	/\.map$/
		2217	? normalise "?random/$_"
		2218	: ()
		2219	} @{ aio_readdir $RANDOMDIR or [] }
		2220	]
		2221	}
		2222
		2223	=item cf::map::unique_maps
		2224
		2225	Returns an arrayref of paths of all shared maps that have
		2226	instantiated unique items. May block.
		2227
		2228	=cut
		2229
		2230	sub unique_maps() {
		2231	[
		2232	map {
		2233	utf8::decode $_;
		2234	/\.map$/
		2235	? normalise $_
		2236	: ()
		2237	} @{ aio_readdir $UNIQUEDIR or [] }
		2238	]
		2239	}
		2240
		2241	package cf;
		2242
		2243	=back
		2244
		2245	=head3 cf::object
		2246
		2247	=cut
		2248
		2249	package cf::object;
760		2250
761	=over 4	2251	=over 4
762		2252
763	=item cf::player::exists $login	2253	=item $ob->inv_recursive
764		2254
765	Returns true when the given account exists.	2255	Returns the inventory of the object _and_ their inventories, recursively.
766		2256
767	=cut	2257	=cut
768		2258
769	sub cf::player::exists($) {	2259	sub inv_recursive_;
770	cf::player::find $_[0]	2260	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2261	map { $_, inv_recursive_ $_->inv } @_
772	}	2262	}
773		2263
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	2264	sub inv_recursive {
775		2265	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	2266	}
		2267
		2268	=item $ref = $ob->ref
		2269
		2270	creates and returns a persistent reference to an objetc that can be stored as a string.
		2271
		2272	=item $ob = cf::object::deref ($refstring)
		2273
		2274	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2275	even if the object actually exists. May block.
		2276
		2277	=cut
		2278
		2279	sub deref {
		2280	my ($ref) = @_;
		2281
		2282	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
787		2297
788	=back	2298	=back
789		2299
790	=head3 cf::object::player	2300	=head3 cf::object::player
791		2301
…		…
807		2317
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2319
810	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
812	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
815	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
816	}	2345	}
817		2346
818	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
819		2348
820	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
829	(ref $cf::CFG{"may_$access"}	2358	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2359	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2360	: $cf::CFG{"may_$access"})
832	}	2361	}
833		2362
		2363	=item $player_object->enter_link
		2364
		2365	Freezes the player and moves him/her to a special map (C<{link}>).
		2366
		2367	The player should be reasonably safe there for short amounts of time. You
		2368	I<MUST> call C<leave_link> as soon as possible, though.
		2369
		2370	Will never block.
		2371
		2372	=item $player_object->leave_link ($map, $x, $y)
		2373
		2374	Moves the player out of the special C<{link}> map onto the specified
		2375	map. If the map is not valid (or omitted), the player will be moved back
		2376	to the location he/she was before the call to C<enter_link>, or, if that
		2377	fails, to the emergency map position.
		2378
		2379	Might block.
		2380
		2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
		2392
		2393	sub cf::object::player::enter_link {
		2394	my ($self) = @_;
		2395
		2396	$self->deactivate_recursive;
		2397
		2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2399
		2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2401	if $self->map && $self->map->{path} ne "{link}";
		2402
		2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2404	}
		2405
		2406	sub cf::object::player::leave_link {
		2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
		2410
		2411	my $link_pos = delete $self->{_link_pos};
		2412
		2413	unless ($map) {
		2414	# restore original map position
		2415	($map, $x, $y) = @{ $link_pos || [] };
		2416	$map = cf::map::find $map;
		2417
		2418	unless ($map) {
		2419	($map, $x, $y) = @$EMERGENCY_POSITION;
		2420	$map = cf::map::find $map
		2421	or die "FATAL: cannot load emergency map\n";
		2422	}
		2423	}
		2424
		2425	($x, $y) = (-1, -1)
		2426	unless (defined $x) && (defined $y);
		2427
		2428	# use -1 or undef as default coordinates, not 0, 0
		2429	($x, $y) = ($map->enter_x, $map->enter_y)
		2430	if $x <=0 && $y <= 0;
		2431
		2432	$map->load;
		2433	$map->load_neighbours;
		2434
		2435	return unless $self->contr->active;
		2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2439	$self->enter_map ($map, $x, $y);
		2440	}
		2441
		2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2443
		2444	Moves the player to the given map-path and coordinates by first freezing
		2445	her, loading and preparing them map, calling the provided $check callback
		2446	that has to return the map if sucecssful, and then unfreezes the player on
		2447	the new (success) or old (failed) map position. In either case, $done will
		2448	be called at the end of this process.
		2449
		2450	=cut
		2451
		2452	our $GOTOGEN;
		2453
		2454	sub cf::object::player::goto {
		2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2459
		2460	$self->enter_link;
		2461
		2462	(async {
		2463	$Coro::current->{desc} = "player::goto $path $x $y";
		2464
		2465	# *tag paths override both path and x|y
		2466	if ($path =~ /^\*(.*)$/) {
		2467	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2468	my $ob = $obs[rand @obs];
		2469
		2470	# see if we actually can go there
		2471	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2472	$ob = $obs[rand @obs];
		2473	} else {
		2474	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2475	}
		2476	# else put us there anyways for now #d#
		2477
		2478	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2479	} else {
		2480	($path, $x, $y) = (undef, undef, undef);
		2481	}
		2482	}
		2483
		2484	my $map = eval {
		2485	my $map = defined $path ? cf::map::find $path : undef;
		2486
		2487	if ($map) {
		2488	$map = $map->customise_for ($self);
		2489	$map = $check->($map) if $check && $map;
		2490	} else {
		2491	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2492	}
		2493
		2494	$map
		2495	};
		2496
		2497	if ($@) {
		2498	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2499	LOG llevError | logBacktrace, Carp::longmess $@;
		2500	}
		2501
		2502	if ($gen == $self->{_goto_generation}) {
		2503	delete $self->{_goto_generation};
		2504	$self->leave_link ($map, $x, $y);
		2505	}
		2506
		2507	$done->() if $done;
		2508	})->prio (1);
		2509	}
		2510
		2511	=item $player_object->enter_exit ($exit_object)
		2512
		2513	=cut
		2514
		2515	sub parse_random_map_params {
		2516	my ($spec) = @_;
		2517
		2518	my $rmp = { # defaults
		2519	xsize => (cf::rndm 15, 40),
		2520	ysize => (cf::rndm 15, 40),
		2521	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2522	#layout => string,
		2523	};
		2524
		2525	for (split /\n/, $spec) {
		2526	my ($k, $v) = split /\s+/, $_, 2;
		2527
		2528	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2529	}
		2530
		2531	$rmp
		2532	}
		2533
		2534	sub prepare_random_map {
		2535	my ($exit) = @_;
		2536
		2537	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2538
		2539	# all this does is basically replace the /! path by
		2540	# a new random map path (?random/...) with a seed
		2541	# that depends on the exit object
		2542
		2543	my $rmp = parse_random_map_params $exit->msg;
		2544
		2545	if ($exit->map) {
		2546	$rmp->{region} = $exit->region->name;
		2547	$rmp->{origin_map} = $exit->map->path;
		2548	$rmp->{origin_x} = $exit->x;
		2549	$rmp->{origin_y} = $exit->y;
		2550	}
		2551
		2552	$rmp->{random_seed} ||= $exit->random_seed;
		2553
		2554	my $data = cf::to_json $rmp;
		2555	my $md5 = Digest::MD5::md5_hex $data;
		2556	my $meta = "$RANDOMDIR/$md5.meta";
		2557
		2558	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2559	aio_write $fh, 0, (length $data), $data, 0;
		2560	undef $fh;
		2561	aio_rename "$meta~", $meta;
		2562
		2563	$exit->slaying ("?random/$md5");
		2564	$exit->msg (undef);
		2565	}
		2566	}
		2567
		2568	sub cf::object::player::enter_exit {
		2569	my ($self, $exit) = @_;
		2570
		2571	return unless $self->type == cf::PLAYER;
		2572
		2573	if ($exit->slaying eq "/!") {
		2574	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2575	# the problem is that $exit might not survive long enough
		2576	# so it needs to be done right now, right here
		2577	cf::sync_job { prepare_random_map $exit };
		2578	}
		2579
		2580	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2581	my $hp = $exit->stats->hp;
		2582	my $sp = $exit->stats->sp;
		2583
		2584	$self->enter_link;
		2585
		2586	# if exit is damned, update players death & WoR home-position
		2587	$self->contr->savebed ($slaying, $hp, $sp)
		2588	if $exit->flag (FLAG_DAMNED);
		2589
		2590	(async {
		2591	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2592
		2593	$self->deactivate_recursive; # just to be sure
		2594	unless (eval {
		2595	$self->goto ($slaying, $hp, $sp);
		2596
		2597	1;
		2598	}) {
		2599	$self->message ("Something went wrong deep within the crossfire server. "
		2600	. "I'll try to bring you back to the map you were before. "
		2601	. "Please report this to the dungeon master!",
		2602	cf::NDI_UNIQUE | cf::NDI_RED);
		2603
		2604	warn "ERROR in enter_exit: $@";
		2605	$self->leave_link;
		2606	}
		2607	})->prio (1);
		2608	}
		2609
834	=head3 cf::client	2610	=head3 cf::client
835		2611
836	=over 4	2612	=over 4
837		2613
838	=item $client->send_drawinfo ($text, $flags)	2614	=item $client->send_drawinfo ($text, $flags)
…		…
844		2620
845	sub cf::client::send_drawinfo {	2621	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2622	my ($self, $text, $flags) = @_;
847		2623
848	utf8::encode $text;	2624	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2625	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2626	}
851		2627
		2628	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2629
		2630	Send a drawinfo or msg packet to the client, formatting the msg for the
		2631	client if neccessary. C<$type> should be a string identifying the type of
		2632	the message, with C<log> being the default. If C<$color> is negative, suppress
		2633	the message unless the client supports the msg packet.
		2634
		2635	=cut
		2636
		2637	our %CHANNEL = (
		2638	"c/identify" => {
		2639	id => "infobox",
		2640	title => "Identify",
		2641	reply => undef,
		2642	tooltip => "Items recently identified",
		2643	},
		2644	"c/examine" => {
		2645	id => "infobox",
		2646	title => "Examine",
		2647	reply => undef,
		2648	tooltip => "Signs and other items you examined",
		2649	},
		2650	"c/lookat" => {
		2651	id => "infobox",
		2652	title => "Look",
		2653	reply => undef,
		2654	tooltip => "What you saw there",
		2655	},
		2656	);
		2657
		2658	sub cf::client::send_msg {
		2659	my ($self, $channel, $msg, $color, @extra) = @_;
		2660
		2661	$msg = $self->pl->expand_cfpod ($msg);
		2662
		2663	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2664
		2665	# check predefined channels, for the benefit of C
		2666	if ($CHANNEL{$channel}) {
		2667	$channel = $CHANNEL{$channel};
		2668
		2669	$self->ext_msg (channel_info => $channel)
		2670	if $self->can_msg;
		2671
		2672	$channel = $channel->{id};
		2673
		2674	} elsif (ref $channel) {
		2675	# send meta info to client, if not yet sent
		2676	unless (exists $self->{channel}{$channel->{id}}) {
		2677	$self->{channel}{$channel->{id}} = $channel;
		2678	$self->ext_msg (channel_info => $channel)
		2679	if $self->can_msg;
		2680	}
		2681
		2682	$channel = $channel->{id};
		2683	}
		2684
		2685	return unless @extra || length $msg;
		2686
		2687	if ($self->can_msg) {
		2688	# default colour, mask it out
		2689	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2690	if $color & cf::NDI_DEF;
		2691
		2692	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2693	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2694	} else {
		2695	if ($color >= 0) {
		2696	# replace some tags by gcfclient-compatible ones
		2697	for ($msg) {
		2698	1 while
		2699	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2700	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2701	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2702	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2703	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2704	}
		2705
		2706	$color &= cf::NDI_COLOR_MASK;
		2707
		2708	utf8::encode $msg;
		2709
		2710	if (0 && $msg =~ /\[/) {
		2711	# COMMAND/INFO
		2712	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2713	} else {
		2714	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2715	$self->send_packet ("drawinfo $color $msg")
		2716	}
		2717	}
		2718	}
		2719	}
		2720
		2721	=item $client->ext_msg ($type, @msg)
		2722
		2723	Sends an ext event to the client.
		2724
		2725	=cut
		2726
		2727	sub cf::client::ext_msg($$@) {
		2728	my ($self, $type, @msg) = @_;
		2729
		2730	if ($self->extcmd == 2) {
		2731	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2732	} elsif ($self->extcmd == 1) { # TODO: remove
		2733	push @msg, msgtype => "event_$type";
		2734	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2735	}
		2736	}
		2737
		2738	=item $client->ext_reply ($msgid, @msg)
		2739
		2740	Sends an ext reply to the client.
		2741
		2742	=cut
		2743
		2744	sub cf::client::ext_reply($$@) {
		2745	my ($self, $id, @msg) = @_;
		2746
		2747	if ($self->extcmd == 2) {
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2749	} elsif ($self->extcmd == 1) {
		2750	#TODO: version 1, remove
		2751	unshift @msg, msgtype => "reply", msgid => $id;
		2752	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2753	}
		2754	}
852		2755
853	=item $success = $client->query ($flags, "text", \&cb)	2756	=item $success = $client->query ($flags, "text", \&cb)
854		2757
855	Queues a query to the client, calling the given callback with	2758	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2759	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
857	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2760	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
858		2761
859	Queries can fail, so check the return code. Or don't, as queries will become	2762	Queries can fail, so check the return code. Or don't, as queries will
860	reliable at some point in the future.	2763	become reliable at some point in the future.
861		2764
862	=cut	2765	=cut
863		2766
864	sub cf::client::query {	2767	sub cf::client::query {
865	my ($self, $flags, $text, $cb) = @_;	2768	my ($self, $flags, $text, $cb) = @_;
…		…
873	utf8::encode $text;	2776	utf8::encode $text;
874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2777	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
875		2778
876	$self->send_packet ($self->{query_queue}[0][0])	2779	$self->send_packet ($self->{query_queue}[0][0])
877	if @{ $self->{query_queue} } == 1;	2780	if @{ $self->{query_queue} } == 1;
		2781
		2782	1
878	}	2783	}
879		2784
880	cf::client->attach (	2785	cf::client->attach (
		2786	on_connect => sub {
		2787	my ($ns) = @_;
		2788
		2789	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2790	},
881	on_reply => sub {	2791	on_reply => sub {
882	my ($ns, $msg) = @_;	2792	my ($ns, $msg) = @_;
883		2793
884	# this weird shuffling is so that direct followup queries	2794	# this weird shuffling is so that direct followup queries
885	# get handled first	2795	# get handled first
886	my $queue = delete $ns->{query_queue};	2796	my $queue = delete $ns->{query_queue}
		2797	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2798
888	(shift @$queue)->[1]->($msg);	2799	(shift @$queue)->[1]->($msg);
		2800	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2801
890	push @{ $ns->{query_queue} }, @$queue;	2802	push @{ $ns->{query_queue} }, @$queue;
891		2803
892	if (@{ $ns->{query_queue} } == @$queue) {	2804	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2805	if (@$queue) {
…		…
895	} else {	2807	} else {
896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2808	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
897	}	2809	}
898	}	2810	}
899	},	2811	},
		2812	on_exticmd => sub {
		2813	my ($ns, $buf) = @_;
		2814
		2815	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2816
		2817	if (ref $msg) {
		2818	my ($type, $reply, @payload) =
		2819	"ARRAY" eq ref $msg
		2820	? @$msg
		2821	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2822
		2823	my @reply;
		2824
		2825	if (my $cb = $EXTICMD{$type}) {
		2826	@reply = $cb->($ns, @payload);
		2827	}
		2828
		2829	$ns->ext_reply ($reply, @reply)
		2830	if $reply;
		2831
		2832	} else {
		2833	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2834	}
		2835
		2836	cf::override;
		2837	},
900	);	2838	);
901		2839
902	=item $client->coro (\&cb)	2840	=item $client->async (\&cb)
903		2841
904	Create a new coroutine, running the specified callback. The coroutine will	2842	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2843	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2844	or loss of connection).
907		2845
908	=cut	2846	=cut
909		2847
910	sub cf::client::coro {	2848	sub cf::client::async {
911	my ($self, $cb) = @_;	2849	my ($self, $cb) = @_;
912		2850
913	my $coro; $coro = async {	2851	my $coro = &Coro::async ($cb);
914	eval {	2852
915	$cb->();	2853	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2854	delete $self->{_coro}{$coro+0};
919	};	2855	});
920		2856
921	$self->{_coro}{$coro+0} = $coro;	2857	$self->{_coro}{$coro+0} = $coro;
		2858
		2859	$coro
922	}	2860	}
923		2861
924	cf::client->attach (	2862	cf::client->attach (
925	on_destroy => sub {	2863	on_destroy => sub {
926	my ($ns) = @_;	2864	my ($ns) = @_;
…		…
945	our $safe = new Safe "safe";	2883	our $safe = new Safe "safe";
946	our $safe_hole = new Safe::Hole;	2884	our $safe_hole = new Safe::Hole;
947		2885
948	$SIG{FPE} = 'IGNORE';	2886	$SIG{FPE} = 'IGNORE';
949		2887
950	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2888	$safe->permit_only (Opcode::opset qw(
		2889	:base_core :base_mem :base_orig :base_math
		2890	grepstart grepwhile mapstart mapwhile
		2891	sort time
		2892	));
951		2893
952	# here we export the classes and methods available to script code	2894	# here we export the classes and methods available to script code
953		2895
954	=pod	2896	=pod
955		2897
956	The following fucntions and emthods are available within a safe environment:	2898	The following functions and methods are available within a safe environment:
957		2899
958	cf::object contr pay_amount pay_player map	2900	cf::object
		2901	contr pay_amount pay_player map x y force_find force_add
		2902	insert remove name archname title slaying race decrease_ob_nr
		2903
959	cf::object::player player	2904	cf::object::player
960	cf::player peaceful	2905	player
961	cf::map trigger	2906
		2907	cf::player
		2908	peaceful
		2909
		2910	cf::map
		2911	trigger
962		2912
963	=cut	2913	=cut
964		2914
965	for (	2915	for (
966	["cf::object" => qw(contr pay_amount pay_player map)],	2916	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2917	insert remove inv name archname title slaying race
		2918	decrease_ob_nr)],
967	["cf::object::player" => qw(player)],	2919	["cf::object::player" => qw(player)],
968	["cf::player" => qw(peaceful)],	2920	["cf::player" => qw(peaceful)],
969	["cf::map" => qw(trigger)],	2921	["cf::map" => qw(trigger)],
970	) {	2922	) {
971	no strict 'refs';	2923	no strict 'refs';
…		…
1042	=back	2994	=back
1043		2995
1044	=cut	2996	=cut
1045		2997
1046	#############################################################################	2998	#############################################################################
		2999	# the server's init and main functions
1047		3000
1048	=head2 EXTENSION DATABASE SUPPORT	3001	sub load_facedata($) {
		3002	my ($path) = @_;
1049		3003
1050	Crossfire maintains a very simple database for extension use. It can	3004	# HACK to clear player env face cache, we need some signal framework
1051	currently store anything that can be serialised using Storable, which	3005	# for this (global event?)
1052	excludes objects.	3006	%ext::player_env::MUSIC_FACE_CACHE = ();
1053		3007
1054	The parameter C<$family> should best start with the name of the extension	3008	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1055	using it, it should be unique.
1056		3009
1057	=over 4	3010	warn "loading facedata from $path\n";
1058		3011
1059	=item $hashref = cf::db_get $family	3012	my $facedata;
		3013	0 < aio_load $path, $facedata
		3014	or die "$path: $!";
1060		3015
1061	Return a hashref for use by the extension C<$family>, which can be	3016	$facedata = Coro::Storable::thaw $facedata;
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064		3017
1065	=item $value = cf::db_get $family => $key	3018	$facedata->{version} == 2
		3019	or cf::cleanup "$path: version mismatch, cannot proceed.";
1066		3020
1067	Returns a single value from the database	3021	# patch in the exptable
1068		3022	$facedata->{resource}{"res/exp_table"} = {
1069	=item cf::db_put $family => $hashref	3023	type => FT_RSRC,
1070		3024	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_put $family => $key => $value
1075
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086
1087	=cut
1088
1089	our $DB;
1090
1091	{
1092	my $path = cf::localdir . "/database.pst";
1093
1094	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };
1097	}
1098
1099	my $pid;
1100
1101	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});	3025	};
		3026	cf::cede_to_tick;
1122		3027
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}	3028	{
		3029	my $faces = $facedata->{faceinfo};
1127		3030
1128	sub db_get($;$) {	3031	while (my ($face, $info) = each %$faces) {
1129	@_ >= 2	3032	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1130	? $DB->{$_[0]}{$_[1]}	3033	cf::face::set_visibility $idx, $info->{visibility};
1131	: ($DB->{$_[0]} ||= { })	3034	cf::face::set_magicmap $idx, $info->{magicmap};
1132	}	3035	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3036	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1133		3037
1134	sub db_put($$;$) {	3038	cf::cede_to_tick;
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	3039	}
1148	);
1149	}
1150		3040
1151	#############################################################################	3041	while (my ($face, $info) = each %$faces) {
1152	# the server's main()	3042	next unless $info->{smooth};
		3043	my $idx = cf::face::find $face
		3044	or next;
		3045	if (my $smooth = cf::face::find $info->{smooth}) {
		3046	cf::face::set_smooth $idx, $smooth;
		3047	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3048	} else {
		3049	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3050	}
1153		3051
1154	sub cfg_load {	3052	cf::cede_to_tick;
		3053	}
		3054	}
		3055
		3056	{
		3057	my $anims = $facedata->{animinfo};
		3058
		3059	while (my ($anim, $info) = each %$anims) {
		3060	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3061	cf::cede_to_tick;
		3062	}
		3063
		3064	cf::anim::invalidate_all; # d'oh
		3065	}
		3066
		3067	{
		3068	# TODO: for gcfclient pleasure, we should give resources
		3069	# that gcfclient doesn't grok a >10000 face index.
		3070	my $res = $facedata->{resource};
		3071
		3072	my $soundconf = delete $res->{"res/sound.conf"};
		3073
		3074	while (my ($name, $info) = each %$res) {
		3075	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3076	my $data;
		3077
		3078	if ($info->{type} & 1) {
		3079	# prepend meta info
		3080
		3081	my $meta = $enc->encode ({
		3082	name => $name,
		3083	%{ $info->{meta} || {} },
		3084	});
		3085
		3086	$data = pack "(w/a*)*", $meta, $info->{data};
		3087	} else {
		3088	$data = $info->{data};
		3089	}
		3090
		3091	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3092	cf::face::set_type $idx, $info->{type};
		3093
		3094	cf::cede_to_tick;
		3095	}
		3096
		3097	if ($soundconf) {
		3098	$soundconf = $enc->decode (delete $soundconf->{data});
		3099
		3100	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3101	my $sound = $soundconf->{compat}[$_]
		3102	or next;
		3103
		3104	my $face = cf::face::find "sound/$sound->[1]";
		3105	cf::sound::set $sound->[0] => $face;
		3106	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3107	}
		3108
		3109	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3110	my $face = cf::face::find "sound/$v";
		3111	cf::sound::set $k => $face;
		3112	}
		3113	}
		3114	}
		3115
		3116	1
		3117	}
		3118
		3119	register_exticmd fx_want => sub {
		3120	my ($ns, $want) = @_;
		3121
		3122	while (my ($k, $v) = each %$want) {
		3123	$ns->fx_want ($k, $v);
		3124	}
		3125	};
		3126
		3127	sub reload_regions {
		3128	# HACK to clear player env face cache, we need some signal framework
		3129	# for this (global event?)
		3130	%ext::player_env::MUSIC_FACE_CACHE = ();
		3131
		3132	load_resource_file "$MAPDIR/regions"
		3133	or die "unable to load regions file\n";
		3134
		3135	for (cf::region::list) {
		3136	$_->{match} = qr/$_->{match}/
		3137	if exists $_->{match};
		3138	}
		3139	}
		3140
		3141	sub reload_facedata {
		3142	load_facedata "$DATADIR/facedata"
		3143	or die "unable to load facedata\n";
		3144	}
		3145
		3146	sub reload_archetypes {
		3147	load_resource_file "$DATADIR/archetypes"
		3148	or die "unable to load archetypes\n";
		3149	#d# NEED to laod twice to resolve forward references
		3150	# this really needs to be done in an extra post-pass
		3151	# (which needs to be synchronous, so solve it differently)
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	}
		3155
		3156	sub reload_treasures {
		3157	load_resource_file "$DATADIR/treasures"
		3158	or die "unable to load treasurelists\n";
		3159	}
		3160
		3161	sub reload_resources {
		3162	warn "reloading resource files...\n";
		3163
		3164	reload_regions;
		3165	reload_facedata;
		3166	#reload_archetypes;#d#
		3167	reload_archetypes;
		3168	reload_treasures;
		3169
		3170	warn "finished reloading resource files\n";
		3171	}
		3172
		3173	sub init {
		3174	reload_resources;
		3175	}
		3176
		3177	sub reload_config {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	3178	open my $fh, "<:utf8", "$CONFDIR/config"
1156	or return;	3179	or return;
1157		3180
1158	local $/;	3181	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	3182	*CFG = YAML::Syck::Load <$fh>;
		3183
		3184	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3185
		3186	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3187	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3188
		3189	if (exists $CFG{mlockall}) {
		3190	eval {
		3191	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3192	and die "WARNING: m(un)lockall failed: $!\n";
		3193	};
		3194	warn $@ if $@;
		3195	}
1160	}	3196	}
1161		3197
1162	sub main {	3198	sub main {
1163	cfg_load;	3199	# we must not ever block the main coroutine
1164	db_load;	3200	local $Coro::idle = sub {
		3201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3202	(async {
		3203	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3204	Event::one_event;
		3205	})->prio (Coro::PRIO_MAX);
		3206	};
		3207
		3208	reload_config;
		3209	db_init;
1165	load_extensions;	3210	load_extensions;
		3211
		3212	$TICK_WATCHER->start;
1166	Event::loop;	3213	Event::loop;
1167	}	3214	}
1168		3215
1169	#############################################################################	3216	#############################################################################
1170	# initialisation	3217	# initialisation and cleanup
1171		3218
1172	sub _perl_reload(&) {	3219	# install some emergency cleanup handlers
		3220	BEGIN {
		3221	for my $signal (qw(INT HUP TERM)) {
		3222	Event->signal (
		3223	reentrant => 0,
		3224	data => WF_AUTOCANCEL,
		3225	signal => $signal,
		3226	prio => 0,
		3227	cb => sub {
		3228	cf::cleanup "SIG$signal";
		3229	},
		3230	);
		3231	}
		3232	}
		3233
		3234	sub write_runtime {
		3235	my $runtime = "$LOCALDIR/runtime";
		3236
		3237	# first touch the runtime file to show we are still running:
		3238	# the fsync below can take a very very long time.
		3239
		3240	IO::AIO::aio_utime $runtime, undef, undef;
		3241
		3242	my $guard = cf::lock_acquire "write_runtime";
		3243
		3244	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3245	or return;
		3246
		3247	my $value = $cf::RUNTIME + 90 + 10;
		3248	# 10 is the runtime save interval, for a monotonic clock
		3249	# 60 allows for the watchdog to kill the server.
		3250
		3251	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3252	and return;
		3253
		3254	# always fsync - this file is important
		3255	aio_fsync $fh
		3256	and return;
		3257
		3258	# touch it again to show we are up-to-date
		3259	aio_utime $fh, undef, undef;
		3260
		3261	close $fh
		3262	or return;
		3263
		3264	aio_rename "$runtime~", $runtime
		3265	and return;
		3266
		3267	warn "runtime file written.\n";
		3268
		3269	1
		3270	}
		3271
		3272	sub emergency_save() {
		3273	my $freeze_guard = cf::freeze_mainloop;
		3274
		3275	warn "enter emergency perl save\n";
		3276
		3277	cf::sync_job {
		3278	# use a peculiar iteration method to avoid tripping on perl
		3279	# refcount bugs in for. also avoids problems with players
		3280	# and maps saved/destroyed asynchronously.
		3281	warn "begin emergency player save\n";
		3282	for my $login (keys %cf::PLAYER) {
		3283	my $pl = $cf::PLAYER{$login} or next;
		3284	$pl->valid or next;
		3285	$pl->save;
		3286	}
		3287	warn "end emergency player save\n";
		3288
		3289	warn "begin emergency map save\n";
		3290	for my $path (keys %cf::MAP) {
		3291	my $map = $cf::MAP{$path} or next;
		3292	$map->valid or next;
		3293	$map->save;
		3294	}
		3295	warn "end emergency map save\n";
		3296
		3297	warn "begin emergency database checkpoint\n";
		3298	BDB::db_env_txn_checkpoint $DB_ENV;
		3299	warn "end emergency database checkpoint\n";
		3300	};
		3301
		3302	warn "leave emergency perl save\n";
		3303	}
		3304
		3305	sub post_cleanup {
1173	my ($msg) = @_;	3306	my ($make_core) = @_;
1174		3307
1175	$msg->("reloading...");	3308	warn Carp::longmess "post_cleanup backtrace"
		3309	if $make_core;
		3310	}
1176		3311
1177	eval {	3312	sub do_reload_perl() {
1178	# cancel all watchers	3313	# can/must only be called in main
		3314	if ($Coro::current != $Coro::main) {
		3315	warn "can only reload from main coroutine";
		3316	return;
		3317	}
		3318
		3319	warn "reloading...";
		3320
		3321	warn "entering sync_job";
		3322
		3323	cf::sync_job {
		3324	cf::write_runtime; # external watchdog should not bark
		3325	cf::emergency_save;
		3326	cf::write_runtime; # external watchdog should not bark
		3327
		3328	warn "syncing database to disk";
		3329	BDB::db_env_txn_checkpoint $DB_ENV;
		3330
		3331	# if anything goes wrong in here, we should simply crash as we already saved
		3332
		3333	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	3334	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	3335	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	3336	}
1182		3337
1183	# unload all extensions	3338	warn "flushing outstanding aio requests";
1184	for (@exts) {	3339	for (;;) {
1185	$msg->("unloading <$_>");	3340	BDB::flush;
1186	unload_extension $_;	3341	IO::AIO::flush;
		3342	Coro::cede;
		3343	last unless IO::AIO::nreqs || BDB::nreqs;
		3344	warn "iterate...";
		3345	}
		3346
		3347	++$RELOAD;
		3348
		3349	warn "cancelling all extension coros";
		3350	$_->cancel for values %EXT_CORO;
		3351	%EXT_CORO = ();
		3352
		3353	warn "removing commands";
		3354	%COMMAND = ();
		3355
		3356	warn "removing ext/exti commands";
		3357	%EXTCMD = ();
		3358	%EXTICMD = ();
		3359
		3360	warn "unloading/nuking all extensions";
		3361	for my $pkg (@EXTS) {
		3362	warn "... unloading $pkg";
		3363
		3364	if (my $cb = $pkg->can ("unload")) {
		3365	eval {
		3366	$cb->($pkg);
		3367	1
		3368	} or warn "$pkg unloaded, but with errors: $@";
1187	}	3369	}
1188		3370
		3371	warn "... nuking $pkg";
		3372	Symbol::delete_package $pkg;
		3373	}
		3374
1189	# unload all modules loaded from $LIBDIR	3375	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	3376	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3377	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		3378
1193	$msg->("removing <$k>");	3379	warn "... unloading $k";
1194	delete $INC{$k};	3380	delete $INC{$k};
1195		3381
1196	$k =~ s/\.pm$//;	3382	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	3383	$k =~ s/\//::/g;
1198		3384
…		…
1201	}	3387	}
1202		3388
1203	Symbol::delete_package $k;	3389	Symbol::delete_package $k;
1204	}	3390	}
1205		3391
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	3392	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	3393	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3394	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		3395
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	3396	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	3397	delete $INC{"cf.pm"};
		3398	delete $INC{"cf/pod.pm"};
1218		3399
1219	# don't, removes xs symbols, too,	3400	# don't, removes xs symbols, too,
1220	# and global variables created in xs	3401	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	3402	#Symbol::delete_package __PACKAGE__;
1222		3403
1223	# reload cf.pm	3404	warn "unload completed, starting to reload now";
		3405
1224	$msg->("reloading cf.pm");	3406	warn "reloading cf.pm";
1225	require cf;	3407	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3408	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		3409
1228	# load config and database again	3410	warn "loading config and database again";
1229	cf::cfg_load;	3411	cf::reload_config;
1230	cf::db_load;
1231		3412
1232	# load extensions	3413	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	3414	cf::load_extensions;
1235		3415
1236	# reattach attachments to objects	3416	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");	3417	_global_reattach; # objects, sockets
1238	_global_reattach;	3418	warn "reattaching attachments to maps";
		3419	reattach $_ for values %MAP;
		3420	warn "reattaching attachments to players";
		3421	reattach $_ for values %PLAYER;
		3422
		3423	warn "leaving sync_job";
		3424
		3425	1
		3426	} or do {
		3427	warn $@;
		3428	warn "error while reloading, exiting.";
		3429	exit 1;
1239	};	3430	};
1240	$msg->($@) if $@;
1241		3431
1242	$msg->("reloaded");	3432	warn "reloaded";
1243	};	3433	};
1244		3434
1245	sub perl_reload() {	3435	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {	3436
1247	warn $_[0];	3437	sub reload_perl() {
1248	print "$_[0]\n";	3438	# doing reload synchronously and two reloads happen back-to-back,
		3439	# coro crashes during coro_state_free->destroy here.
		3440
		3441	$RELOAD_WATCHER ||= Event->timer (
		3442	reentrant => 0,
		3443	after => 0,
		3444	data => WF_AUTOCANCEL,
		3445	cb => sub {
		3446	do_reload_perl;
		3447	undef $RELOAD_WATCHER;
		3448	},
1249	};	3449	);
1250	}	3450	}
1251		3451
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	3452	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	3453	my ($who, $arg) = @_;
1256		3454
1257	if ($who->flag (FLAG_WIZ)) {	3455	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	3456	$who->message ("reloading server.");
1259	warn $_[0];	3457	async {
1260	$who->message ($_[0]);	3458	$Coro::current->{desc} = "perl_reload";
		3459	reload_perl;
1261	};	3460	};
1262	}	3461	}
1263	};	3462	};
1264		3463
1265	unshift @INC, $LIBDIR;	3464	unshift @INC, $LIBDIR;
1266		3465
		3466	my $bug_warning = 0;
		3467
		3468	our @WAIT_FOR_TICK;
		3469	our @WAIT_FOR_TICK_BEGIN;
		3470
		3471	sub wait_for_tick {
		3472	return unless $TICK_WATCHER->is_active;
		3473	return if $Coro::current == $Coro::main;
		3474
		3475	my $signal = new Coro::Signal;
		3476	push @WAIT_FOR_TICK, $signal;
		3477	$signal->wait;
		3478	}
		3479
		3480	sub wait_for_tick_begin {
		3481	return unless $TICK_WATCHER->is_active;
		3482	return if $Coro::current == $Coro::main;
		3483
		3484	my $signal = new Coro::Signal;
		3485	push @WAIT_FOR_TICK_BEGIN, $signal;
		3486	$signal->wait;
		3487	}
		3488
1267	$TICK_WATCHER = Event->timer (	3489	$TICK_WATCHER = Event->timer (
		3490	reentrant => 0,
		3491	parked => 1,
1268	prio => 0,	3492	prio => 0,
1269	at => $NEXT_TICK || 1,	3493	at => $NEXT_TICK || $TICK,
1270	data => WF_AUTOCANCEL,	3494	data => WF_AUTOCANCEL,
1271	cb => sub {	3495	cb => sub {
		3496	if ($Coro::current != $Coro::main) {
		3497	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3498	unless ++$bug_warning > 10;
		3499	return;
		3500	}
		3501
		3502	$NOW = $tick_start = Event::time;
		3503
1272	cf::server_tick; # one server iteration	3504	cf::server_tick; # one server iteration
1273		3505
1274	my $NOW = Event::time;	3506	$RUNTIME += $TICK;
1275	$NEXT_TICK += $TICK;	3507	$NEXT_TICK += $TICK;
		3508
		3509	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3510	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3511	Coro::async_pool {
		3512	$Coro::current->{desc} = "runtime saver";
		3513	write_runtime
		3514	or warn "ERROR: unable to write runtime file: $!";
		3515	};
		3516	}
		3517
		3518	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3519	$sig->send;
		3520	}
		3521	while (my $sig = shift @WAIT_FOR_TICK) {
		3522	$sig->send;
		3523	}
		3524
		3525	$NOW = Event::time;
1276		3526
1277	# if we are delayed by four ticks or more, skip them all	3527	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3528	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1279		3529
1280	$TICK_WATCHER->at ($NEXT_TICK);	3530	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	3531	$TICK_WATCHER->start;
		3532
		3533	$LOAD = ($NOW - $tick_start) / $TICK;
		3534	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3535
		3536	_post_tick;
1282	},	3537	},
1283	);	3538	);
1284		3539
		3540	{
		3541	BDB::min_parallel 8;
		3542	BDB::max_poll_time $TICK * 0.1;
		3543	$BDB_POLL_WATCHER = Event->io (
		3544	reentrant => 0,
		3545	fd => BDB::poll_fileno,
		3546	poll => 'r',
		3547	prio => 0,
		3548	data => WF_AUTOCANCEL,
		3549	cb => \&BDB::poll_cb,
		3550	);
		3551
		3552	BDB::set_sync_prepare {
		3553	my $status;
		3554	my $current = $Coro::current;
		3555	(
		3556	sub {
		3557	$status = $!;
		3558	$current->ready; undef $current;
		3559	},
		3560	sub {
		3561	Coro::schedule while defined $current;
		3562	$! = $status;
		3563	},
		3564	)
		3565	};
		3566
		3567	unless ($DB_ENV) {
		3568	$DB_ENV = BDB::db_env_create;
		3569	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3570	| BDB::LOG_AUTOREMOVE, 1);
		3571	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3572	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3573
		3574	cf::sync_job {
		3575	eval {
		3576	BDB::db_env_open
		3577	$DB_ENV,
		3578	$BDBDIR,
		3579	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3580	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3581	0666;
		3582
		3583	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3584	};
		3585
		3586	cf::cleanup "db_env_open(db): $@" if $@;
		3587	};
		3588	}
		3589
		3590	$BDB_DEADLOCK_WATCHER = Event->timer (
		3591	after => 3,
		3592	interval => 1,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3598	},
		3599	);
		3600	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3601	after => 11,
		3602	interval => 60,
		3603	hard => 1,
		3604	prio => 0,
		3605	data => WF_AUTOCANCEL,
		3606	cb => sub {
		3607	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3608	},
		3609	);
		3610	$BDB_TRICKLE_WATCHER = Event->timer (
		3611	after => 5,
		3612	interval => 10,
		3613	hard => 1,
		3614	prio => 0,
		3615	data => WF_AUTOCANCEL,
		3616	cb => sub {
		3617	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3618	},
		3619	);
		3620	}
		3621
		3622	{
		3623	IO::AIO::min_parallel 8;
		3624
		3625	undef $Coro::AIO::WATCHER;
1285	IO::AIO::max_poll_time $TICK * 0.2;	3626	IO::AIO::max_poll_time $TICK * 0.1;
1286		3627	$AIO_POLL_WATCHER = Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	3628	reentrant => 0,
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,	3629	data => WF_AUTOCANCEL,
		3630	fd => IO::AIO::poll_fileno,
		3631	poll => 'r',
		3632	prio => 0,
1291	cb => \&IO::AIO::poll_cb);	3633	cb => \&IO::AIO::poll_cb,
		3634	);
		3635	}
		3636
		3637	my $_log_backtrace;
		3638
		3639	sub _log_backtrace {
		3640	my ($msg, @addr) = @_;
		3641
		3642	$msg =~ s/\n//;
		3643
		3644	# limit the # of concurrent backtraces
		3645	if ($_log_backtrace < 2) {
		3646	++$_log_backtrace;
		3647	async {
		3648	$Coro::current->{desc} = "abt $msg";
		3649
		3650	my @bt = fork_call {
		3651	@addr = map { sprintf "%x", $_ } @addr;
		3652	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3653	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3654	or die "addr2line: $!";
		3655
		3656	my @funcs;
		3657	my @res = <$fh>;
		3658	chomp for @res;
		3659	while (@res) {
		3660	my ($func, $line) = splice @res, 0, 2, ();
		3661	push @funcs, "[$func] $line";
		3662	}
		3663
		3664	@funcs
		3665	};
		3666
		3667	LOG llevInfo, "[ABT] $msg\n";
		3668	LOG llevInfo, "[ABT] $_\n" for @bt;
		3669	--$_log_backtrace;
		3670	};
		3671	} else {
		3672	LOG llevInfo, "[ABT] $msg\n";
		3673	LOG llevInfo, "[ABT] [suppressed]\n";
		3674	}
		3675	}
		3676
		3677	# load additional modules
		3678	use cf::pod;
		3679
		3680	END { cf::emergency_save }
1292		3681
1293	1	3682	1
1294		3683

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