ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.94 by root, Thu Dec 21 23:02:54 2006 UTC vs.
Revision 1.378 by root, Thu Oct 4 11:36:54 2007 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
		8	use Socket;
5	use Storable;	9	use Storable;
		10	use Event;
6	use Opcode;	11	use Opcode;
7	use Safe;	12	use Safe;
8	use Safe::Hole;	13	use Safe::Hole;
9		14
10	use IO::AIO ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
		18	use Coro::Event;
		19	use Coro::Timer;
		20	use Coro::Signal;
		21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
11	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
12	use Time::HiRes;	33	use Time::HiRes;
13	use Event;	34	use Compress::LZF;
		35	use Digest::MD5 ();
		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
14	$Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
15		44
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
18		47
19	use strict;	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		49
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		51
23	our %COMMAND = ();	52	our %COMMAND = ();
24	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
26		60
27	_init_vars;	61	our $RELOAD; # number of reloads so far
28
29	our @EVENT;	62	our @EVENT;
30	our $LIBDIR = datadir . "/ext";
31		63
32	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
33	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34	our $NEXT_TICK;	80	our $NEXT_TICK;
		81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
35		89
36	our %CFG;	90	our %CFG;
37		91
38	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;
39		122
40	#############################################################################	123	#############################################################################
41		124
42	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
43		126
…		…
45		128
46	=item $cf::UPTIME	129	=item $cf::UPTIME
47		130
48	The timestamp of the server start (so not actually an uptime).	131	The timestamp of the server start (so not actually an uptime).
49		132
50	=item $cf::LIBDIR	133	=item $cf::RUNTIME
51		134
52	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
53	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.
54		150
55	=item $cf::TICK	151	=item $cf::TICK
56		152
57	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.
58		164
59	=item %cf::CFG	165	=item %cf::CFG
60		166
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	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.
63		181
64	=back	182	=back
65		183
66	=cut	184	=cut
67		185
68	BEGIN {	186	BEGIN {
69	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	188	my $msg = join "", @_;
		189
71	$msg .= "\n"	190	$msg .= "\n"
72	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
73		192
74	print STDERR "cfperl: $msg";	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
75	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
76	};	196	};
77	}	197	}
78		198
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
81	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
82	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
83	@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';
84	@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)
85		206
86	# 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
87	# within the Safe compartment.	208	# within the Safe compartment.
88	for my $pkg (qw(	209	for my $pkg (qw(
89	cf::global	210	cf::global cf::attachable
90	cf::object cf::object::player	211	cf::object cf::object::player
91	cf::client cf::player	212	cf::client cf::player
92	cf::arch cf::living	213	cf::arch cf::living
93	cf::map cf::party cf::region	214	cf::map cf::party cf::region
94	)) {	215	)) {
…		…
98		219
99	$Event::DIED = sub {	220	$Event::DIED = sub {
100	warn "error in event callback: @_";	221	warn "error in event callback: @_";
101	};	222	};
102		223
103	my %ext_pkg;	224	#############################################################################
104	my @exts;
105	my @hook;
106		225
107	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
108		227
109	=over 4	228	=over 4
110		229
111	=cut	230	=item dumpval $ref
112		231
113	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	}
114		252
115	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
116		254
117	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
118		256
119	=cut
120
121	sub from_json($) {
122	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
123	JSON::Syck::Load $_[0]
124	}
125
126	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
127		258
128	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
129		260
130	=cut	261	=cut
131		262
132	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
134	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	# TODO: use suspend/resume instead
		433	# (but this is cancel-safe)
		434	my $freeze_guard = freeze_mainloop;
		435
		436	my $busy = 1;
		437	my @res;
		438
		439	(async {
		440	$Coro::current->desc ("sync job coro");
		441	@res = eval { $job->() };
		442	warn $@ if $@;
		443	undef $busy;
		444	})->prio (Coro::PRIO_MAX);
		445
		446	while ($busy) {
		447	Coro::cede or Event::one_event;
		448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
		456
		457	wantarray ? @res : $res[0]
		458	} else {
		459	# we are in another coroutine, how wonderful, everything just works
		460
		461	$job->()
		462	}
		463	}
		464
		465	=item $coro = cf::async_ext { BLOCK }
		466
		467	Like async, but this coro is automatically being canceled when the
		468	extension calling this is being unloaded.
		469
		470	=cut
		471
		472	sub async_ext(&) {
		473	my $cb = shift;
		474
		475	my $coro = &Coro::async ($cb);
		476
		477	$coro->on_destroy (sub {
		478	delete $EXT_CORO{$coro+0};
		479	});
		480	$EXT_CORO{$coro+0} = $coro;
		481
		482	$coro
		483	}
		484
		485	=item fork_call { }, $args
		486
		487	Executes the given code block with the given arguments in a seperate
		488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
		491
		492	=cut
		493
		494	sub fork_call(&@) {
		495	my ($cb, @args) = @_;
		496
		497	# we seemingly have to make a local copy of the whole thing,
		498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
		500
		501	my @res = Coro::Util::fork_eval {
		502	reset_signals;
		503	&$cb
		504	}, @args;
		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
		558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
135	}	645	}
136		646
137	=back	647	=back
138		648
139	=cut	649	=cut
…		…
146	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
147	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
148		658
149	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
150	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
151	crossfire+).	661	Crossfire TRT).
152		662
153	=over 4	663	=over 4
154		664
155	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
156		666
…		…
249	my ($self, $victim) = @_;	759	my ($self, $victim) = @_;
250	...	760	...
251	}	761	}
252	}	762	}
253		763
		764	=item $attachable->valid
		765
		766	Just because you have a perl object does not mean that the corresponding
		767	C-level object still exists. If you try to access an object that has no
		768	valid C counterpart anymore you get an exception at runtime. This method
		769	can be used to test for existence of the C object part without causing an
		770	exception.
		771
254	=cut	772	=cut
255		773
256	# the following variables are defined in .xs and must not be re-created	774	# the following variables are defined in .xs and must not be re-created
257	our @CB_GLOBAL = (); # registry for all global events	775	our @CB_GLOBAL = (); # registry for all global events
		776	our @CB_ATTACHABLE = (); # registry for all attachables
258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	777	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
259	our @CB_PLAYER = ();	778	our @CB_PLAYER = ();
260	our @CB_CLIENT = ();	779	our @CB_CLIENT = ();
261	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
262	our @CB_MAP = ();	781	our @CB_MAP = ();
263		782
264	my %attachment;	783	my %attachment;
		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
265		790
266	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
267	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
268		793
269	use sort 'stable';	794	use sort 'stable';
…		…
272		797
273	@{$registry->[$event]} = sort	798	@{$registry->[$event]} = sort
274	{ $a->[0] cmp $b->[0] }	799	{ $a->[0] cmp $b->[0] }
275	@{$registry->[$event] || []}, $cb;	800	@{$registry->[$event] || []}, $cb;
276	}	801	}
		802
		803	# hack
		804	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
277		805
278	# attach handles attaching event callbacks	806	# attach handles attaching event callbacks
279	# the only thing the caller has to do is pass the correct	807	# the only thing the caller has to do is pass the correct
280	# registry (== where the callback attaches to).	808	# registry (== where the callback attaches to).
281	sub _attach {	809	sub _attach {
…		…
283		811
284	my $object_type;	812	my $object_type;
285	my $prio = 0;	813	my $prio = 0;
286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	814	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
287		815
		816	#TODO: get rid of this hack
		817	if ($attachable_klass{$klass}) {
		818	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		819	}
		820
288	while (@arg) {	821	while (@arg) {
289	my $type = shift @arg;	822	my $type = shift @arg;
290		823
291	if ($type eq "prio") {	824	if ($type eq "prio") {
292	$prio = shift @arg;	825	$prio = shift @arg;
…		…
296	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
297		830
298	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
299	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
300	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
301	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
302		835
303	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
304	my $pkg = shift @arg;	837	my $pkg = shift @arg;
305		838
306	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
335	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
336	}	869	}
337		870
338	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
339	} else {	872	} else {
340	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
341	}	874	}
342		875
343	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
344	}	877	}
345		878
…		…
347	if (ref $_[0]) {	880	if (ref $_[0]) {
348	_object_attach @_;	881	_object_attach @_;
349	} else {	882	} else {
350	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
351	}	884	}
		885	_recalc_want;
352	};	886	};
353		887
354	# all those should be optimised	888	# all those should be optimised
355	sub cf::attachable::detach {	889	sub cf::attachable::detach {
356	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
359	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
360	reattach ($obj);	894	reattach ($obj);
361	} else {	895	} else {
362	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
363	}	897	}
		898	_recalc_want;
364	};	899	};
365		900
366	sub cf::attachable::attached {	901	sub cf::attachable::attached {
367	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
368		903
369	exists $obj->{_attachment}{$name}	904	exists $obj->{_attachment}{$name}
370	}	905	}
371		906
372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	907	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
373	eval "#line " . __LINE__ . " 'cf.pm'	908	eval "#line " . __LINE__ . " 'cf.pm'
374	sub cf::\L$klass\E::_attach_registry {	909	sub cf::\L$klass\E::_attach_registry {
375	(\\\@CB_$klass, KLASS_$klass)	910	(\\\@CB_$klass, KLASS_$klass)
376	}	911	}
377		912
…		…
383	";	918	";
384	die if $@;	919	die if $@;
385	}	920	}
386		921
387	our $override;	922	our $override;
388	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
389		924
390	sub override {	925	sub override {
391	$override = 1;	926	$override = 1;
392	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
393	}	928	}
394		929
395	sub do_invoke {	930	sub do_invoke {
396	my $event = shift;	931	my $event = shift;
397	my $callbacks = shift;	932	my $callbacks = shift;
398		933
399	@invoke_results = ();	934	@INVOKE_RESULTS = ();
400		935
401	local $override;	936	local $override;
402		937
403	for (@$callbacks) {	938	for (@$callbacks) {
404	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
413	}	948	}
414		949
415	0	950	0
416	}	951	}
417		952
418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	953	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
419		954
420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
421
422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
423
424	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	955	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
425		956
426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
427
428	Generate a global/object/player/map-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
429		958
430	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
431	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
432	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
433
434	=back
435
436	=cut
437
438	#############################################################################
439
440	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
441
442	Attachable objects includes objects, players, clients and maps.
443
444	=over 4
445
446	=item $object->valid
447
448	Just because you have a perl object does not mean that the corresponding
449	C-level object still exists. If you try to access an object that has no
450	valid C counterpart anymore you get an exception at runtime. This method
451	can be used to test for existence of the C object part without causing an
452	exception.
453		962
454	=back	963	=back
455		964
456	=cut	965	=cut
457		966
458	#############################################################################	967	#############################################################################
459	# object support	968	# object support
		969	#
460		970
461	sub instantiate {	971	sub _can_merge {
462	my ($obj, $data) = @_;	972	my ($ob1, $ob2) = @_;
463		973
464	$data = from_json $data;	974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
465		977
466	for (@$data) {	978	$fob1 eq $fob2
467	my ($name, $args) = @$_;
468
469	$obj->attach ($name, %{$args || {} });
470	}
471	}	979	}
472		980
473	# basically do the same as instantiate, without calling instantiate
474	sub reattach {	981	sub reattach {
		982	# basically do the same as instantiate, without calling instantiate
475	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		986
476	my $registry = $obj->registry;	987	my $registry = $obj->registry;
477		988
478	@$registry = ();	989	@$registry = ();
479		990
480	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	991	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
489	warn "object uses attachment '$name' that is not available, postponing.\n";	1000	warn "object uses attachment '$name' that is not available, postponing.\n";
490	}	1001	}
491	}	1002	}
492	}	1003	}
493		1004
494	sub object_freezer_save {	1005	cf::attachable->attach (
495	my ($filename, $rdata, $objs) = @_;
496
497	if (length $$rdata) {
498	warn sprintf "saving %s (%d,%d)\n",
499	$filename, length $$rdata, scalar @$objs;
500
501	if (open my $fh, ">:raw", "$filename~") {
502	chmod SAVE_MODE, $fh;
503	syswrite $fh, $$rdata;
504	close $fh;
505
506	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
507	chmod SAVE_MODE, $fh;
508	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
509	close $fh;
510	rename "$filename.pst~", "$filename.pst";
511	} else {
512	unlink "$filename.pst";
513	}
514
515	rename "$filename~", $filename;
516	} else {
517	warn "FATAL: $filename~: $!\n";
518	}
519	} else {
520	unlink $filename;
521	unlink "$filename.pst";
522	}
523	}
524
525	sub object_freezer_as_string {
526	my ($rdata, $objs) = @_;
527
528	use Data::Dumper;
529
530	$$rdata . Dumper $objs
531	}
532
533	sub object_thawer_load {
534	my ($filename) = @_;
535
536	local $/;
537
538	my $av;
539
540	#TODO: use sysread etc.
541	if (open my $data, "<:raw:perlio", $filename) {
542	$data = <$data>;
543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
544	$av = eval { (Storable::thaw <$pst>)->{objs} };
545	}
546	return ($data, $av);
547	}
548
549	()
550	}
551
552	cf::object->attach (
553	prio => -1000000,	1006	prio => -1000000,
		1007	on_instantiate => sub {
		1008	my ($obj, $data) = @_;
		1009
		1010	$data = from_json $data;
		1011
		1012	for (@$data) {
		1013	my ($name, $args) = @$_;
		1014
		1015	$obj->attach ($name, %{$args || {} });
		1016	}
		1017	},
		1018	on_reattach => \&reattach,
554	on_clone => sub {	1019	on_clone => sub {
555	my ($src, $dst) = @_;	1020	my ($src, $dst) = @_;
556		1021
557	@{$dst->registry} = @{$src->registry};	1022	@{$dst->registry} = @{$src->registry};
558		1023
…		…
561	%{$dst->{_attachment}} = %{$src->{_attachment}}	1026	%{$dst->{_attachment}} = %{$src->{_attachment}}
562	if exists $src->{_attachment};	1027	if exists $src->{_attachment};
563	},	1028	},
564	);	1029	);
565		1030
		1031	sub object_freezer_save {
		1032	my ($filename, $rdata, $objs) = @_;
		1033
		1034	sync_job {
		1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
		1037	warn sprintf "saving %s (%d,%d)\n",
		1038	$decname, length $$rdata, scalar @$objs;
		1039
		1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		1041	chmod SAVE_MODE, $fh;
		1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1043	aio_fsync $fh if $cf::USE_FSYNC;
		1044	close $fh;
		1045
		1046	if (@$objs) {
		1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1048	chmod SAVE_MODE, $fh;
		1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1050	aio_write $fh, 0, (length $data), $data, 0;
		1051	aio_fsync $fh if $cf::USE_FSYNC;
		1052	close $fh;
		1053	aio_rename "$filename.pst~", "$filename.pst";
		1054	}
		1055	} else {
		1056	aio_unlink "$filename.pst";
		1057	}
		1058
		1059	aio_rename "$filename~", $filename;
		1060	} else {
		1061	warn "FATAL: $filename~: $!\n";
		1062	}
		1063	} else {
		1064	aio_unlink $filename;
		1065	aio_unlink "$filename.pst";
		1066	}
		1067	};
		1068	}
		1069
		1070	sub object_freezer_as_string {
		1071	my ($rdata, $objs) = @_;
		1072
		1073	use Data::Dumper;
		1074
		1075	$$rdata . Dumper $objs
		1076	}
		1077
		1078	sub object_thawer_load {
		1079	my ($filename) = @_;
		1080
		1081	my ($data, $av);
		1082
		1083	(aio_load $filename, $data) >= 0
		1084	or return;
		1085
		1086	unless (aio_stat "$filename.pst") {
		1087	(aio_load "$filename.pst", $av) >= 0
		1088	or return;
		1089
		1090	$av = eval { (Storable::thaw $av)->{objs} };
		1091	}
		1092
		1093	utf8::decode (my $decname = $filename);
		1094	warn sprintf "loading %s (%d,%d)\n",
		1095	$decname, length $data, scalar @{$av || []};
		1096
		1097	($data, $av)
		1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
		1105
566	#############################################################################	1106	#############################################################################
567	# command handling &c	1107	# command handling &c
568		1108
569	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
570		1110
…		…
582	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
583	}	1123	}
584		1124
585	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
586		1126
587	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
588		1132
589	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
590	called.	1134	called.
591		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
592	=cut	1147	=cut
593		1148
594	sub register_extcmd {	1149	sub register_extcmd {
595	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
596		1151
597	my $caller = caller;
598	#warn "registering extcmd '$name' to '$caller'";
599
600	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
601	}	1159	}
602		1160
603	cf::player->attach (	1161	cf::player->attach (
604	on_command => sub {	1162	on_command => sub {
605	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
614	cf::override;	1172	cf::override;
615	},	1173	},
616	on_extcmd => sub {	1174	on_extcmd => sub {
617	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
618		1176
619	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
620		1178
621	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
622	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
623	if (my %reply = $cb->[0]->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
624	$pl->ext_reply ($msg->{msgid}, %reply);
625	}
626	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
627	} else {	1194	} else {
628	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
629	}	1196	}
630		1197
631	cf::override;	1198	cf::override;
632	},	1199	},
633	);	1200	);
634		1201
		1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
		1206	for my $path (<$LIBDIR/*.ext>) {
		1207	next unless -r $path;
		1208
		1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
		1266	}
		1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
		1272	};
		1273	}
		1274
		1275	#############################################################################
		1276
		1277	=back
		1278
		1279	=head2 CORE EXTENSIONS
		1280
		1281	Functions and methods that extend core crossfire objects.
		1282
		1283	=cut
		1284
		1285	package cf::player;
		1286
		1287	use Coro::AIO;
		1288
		1289	=head3 cf::player
		1290
		1291	=over 4
		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
		1307	=item cf::player::find $login
		1308
		1309	Returns the given player object, loading it if necessary (might block).
		1310
		1311	=cut
		1312
		1313	sub playerdir($) {
		1314	"$PLAYERDIR/"
		1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1316	}
		1317
		1318	sub path($) {
		1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1320
		1321	(playerdir $login) . "/playerdata"
		1322	}
		1323
		1324	sub find_active($) {
		1325	$cf::PLAYER{$_[0]}
		1326	and $cf::PLAYER{$_[0]}->active
		1327	and $cf::PLAYER{$_[0]}
		1328	}
		1329
		1330	sub exists($) {
		1331	my ($login) = @_;
		1332
		1333	$cf::PLAYER{$login}
		1334	or cf::sync_job { !aio_stat path $login }
		1335	}
		1336
		1337	sub find($) {
		1338	return $cf::PLAYER{$_[0]} || do {
		1339	my $login = $_[0];
		1340
		1341	my $guard = cf::lock_acquire "user_find:$login";
		1342
		1343	$cf::PLAYER{$_[0]} || do {
		1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
		1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
		1358	$cf::PLAYER{$login} = $pl
		1359	}
		1360	}
		1361	}
		1362
		1363	sub save($) {
		1364	my ($pl) = @_;
		1365
		1366	return if $pl->{deny_save};
		1367
		1368	my $path = path $pl;
		1369	my $guard = cf::lock_acquire "user_save:$path";
		1370
		1371	return if $pl->{deny_save};
		1372
		1373	aio_mkdir playerdir $pl, 0770;
		1374	$pl->{last_save} = $cf::RUNTIME;
		1375
		1376	$pl->save_pl ($path);
		1377	cf::cede_to_tick;
		1378	}
		1379
		1380	sub new($) {
		1381	my ($login) = @_;
		1382
		1383	my $self = create;
		1384
		1385	$self->ob->name ($login);
		1386	$self->{deny_save} = 1;
		1387
		1388	$cf::PLAYER{$login} = $self;
		1389
		1390	$self
		1391	}
		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
		1403	=item $pl->quit_character
		1404
		1405	Nukes the player without looking back. If logged in, the connection will
		1406	be destroyed. May block for a long time.
		1407
		1408	=cut
		1409
		1410	sub quit_character {
		1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
		1414
		1415	$pl->{deny_save} = 1;
		1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1417
		1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1419	$pl->deactivate;
		1420	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1421	$pl->ns->destroy if $pl->ns;
		1422
		1423	my $path = playerdir $pl;
		1424	my $temp = "$path~$cf::RUNTIME~deleting~";
		1425	aio_rename $path, $temp;
		1426	delete $cf::PLAYER{$pl->ob->name};
		1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
		1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
		1449	}
		1450
		1451	=item cf::player::list_logins
		1452
		1453	Returns am arrayref of all valid playernames in the system, can take a
		1454	while and may block, so not sync_job-capable, ever.
		1455
		1456	=cut
		1457
		1458	sub list_logins {
		1459	my $dirs = aio_readdir $PLAYERDIR
		1460	or return [];
		1461
		1462	my @logins;
		1463
		1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
		1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1470	aio_read $fh, 0, 512, my $buf, 0 or next;
		1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
		1473
		1474	utf8::decode $login;
		1475	push @logins, $login;
		1476	}
		1477
		1478	\@logins
		1479	}
		1480
		1481	=item $player->maps
		1482
		1483	Returns an arrayref of map paths that are private for this
		1484	player. May block.
		1485
		1486	=cut
		1487
		1488	sub maps($) {
		1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
		1492
		1493	my $files = aio_readdir playerdir $pl
		1494	or return;
		1495
		1496	my @paths;
		1497
		1498	for (@$files) {
		1499	utf8::decode $_;
		1500	next if /\.(?:pl|pst)$/;
		1501	next unless /^$PATH_SEP/o;
		1502
		1503	push @paths, cf::map::normalise "~$pl/$_";
		1504	}
		1505
		1506	\@paths
		1507	}
		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
		1560	=item $player->ext_reply ($msgid, @msg)
		1561
		1562	Sends an ext reply to the player.
		1563
		1564	=cut
		1565
		1566	sub ext_reply($$@) {
		1567	my ($self, $id, @msg) = @_;
		1568
		1569	$self->ns->ext_reply ($id, @msg)
		1570	}
		1571
		1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
		1599	my ($path) = @_;
		1600
		1601	my ($match, $specificity);
		1602
		1603	for my $region (list) {
		1604	if ($region->{match} && $path =~ $region->{match}) {
		1605	($match, $specificity) = ($region, $region->specificity)
		1606	if $region->specificity > $specificity;
		1607	}
		1608	}
		1609
		1610	$match
		1611	}
		1612
		1613	=back
		1614
		1615	=head3 cf::map
		1616
		1617	=over 4
		1618
		1619	=cut
		1620
		1621	package cf::map;
		1622
		1623	use Fcntl;
		1624	use Coro::AIO;
		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
		1630	our $MAX_RESET = 3600;
		1631	our $DEFAULT_RESET = 3000;
		1632
		1633	sub generate_random_map {
		1634	my ($self, $rmp) = @_;
		1635	# mit "rum" bekleckern, nicht
		1636	$self->_create_random_map (
		1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1640	$rmp->{exit_on_final_map},
		1641	$rmp->{xsize}, $rmp->{ysize},
		1642	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1643	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1644	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1645	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1647	(cf::region::find $rmp->{region}), $rmp->{custom}
		1648	)
		1649	}
		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
635	sub register {	1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
636	my ($base, $pkg) = @_;	1673	my ($self, $merge) = @_;
637		1674
638	#TODO	1675	# we have to keep some variables in memory intact
639	}	1676	local $self->{path};
		1677	local $self->{load_path};
640		1678
641	sub load_extension {	1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
642	my ($path) = @_;	1683	my ($path, $base) = @_;
643		1684
644	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1685	$path = "$path"; # make sure its a string
645	my $base = $1;
646	my $pkg = $1;
647	$pkg =~ s/[^[:word:]]/_/g;
648	$pkg = "ext::$pkg";
649		1686
650	warn "loading '$path' into '$pkg'\n";	1687	$path =~ s/\.map$//;
651		1688
652	open my $fh, "<:utf8", $path	1689	# map plan:
653	or die "$path: $!";	1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
654		1697
655	my $source =	1698	$path =~ s/$PATH_SEP/\//go;
656	"package $pkg; use strict; use utf8;\n"
657	. "#line 1 \"$path\"\n{\n"
658	. (do { local $/; <$fh> })
659	. "\n};\n1";
660		1699
661	eval $source	1700	# treat it as relative path if it starts with
662	or die $@ ? "$path: $@\n"	1701	# something that looks reasonable
663	: "extension disabled.\n";	1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
664		1704
665	push @exts, $pkg;	1705	$base =~ s{[^/]+/?$}{};
666	$ext_pkg{$base} = $pkg;	1706	$path = "$base/$path";
667
668	# no strict 'refs';
669	# @{"$pkg\::ISA"} = ext::;
670
671	register $base, $pkg;
672	}
673
674	sub unload_extension {
675	my ($pkg) = @_;
676
677	warn "removing extension $pkg\n";
678
679	# remove hooks
680	#TODO
681	# for my $idx (0 .. $#PLUGIN_EVENT) {
682	# delete $hook[$idx]{$pkg};
683	# }	1707	}
684		1708
685	# remove commands	1709	for ($path) {
686	for my $name (keys %COMMAND) {	1710	redo if s{//}{/};
687	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
688		1714
689	if (@cb) {	1715	$path
690	$COMMAND{$name} = \@cb;	1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
		1776	}
		1777
		1778	# and all this just because we cannot iterate over
		1779	# all maps in C++...
		1780	sub change_all_map_light {
		1781	my ($change) = @_;
		1782
		1783	$_->change_map_light ($change)
		1784	for grep $_->outdoor, values %cf::MAP;
		1785	}
		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
		1803	sub load_header_from($) {
		1804	my ($self, $path) = @_;
		1805
		1806	utf8::encode $path;
		1807	my $f = new_from_file cf::object::thawer $path
		1808	or return;
		1809
		1810	$self->_load_header ($f)
		1811	or return;
		1812
		1813	local $MAP_LOADING{$self->{path}} = $self;
		1814	$f->resolve_delayed_derefs;
		1815
		1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
691	} else {	1857	} else {
692	delete $COMMAND{$name};	1858	$self->load_header_orig
693	}	1859	or return;
		1860	$self->prepare_orig;
		1861	}
		1862
		1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
		1865
		1866	$self->default_region (cf::region::find_by_path $self->{path})
		1867	unless $self->default_region;
		1868
694	}	1869	1
		1870	}
695		1871
696	# remove extcmds	1872	sub find;
697	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1873	sub find {
698	delete $EXTCMD{$name};	1874	my ($path, $origin) = @_;
		1875
		1876	$path = normalise $path, $origin && $origin->path;
		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
		1879	cf::lock_wait "map_find:$path";
		1880
		1881	$cf::MAP{$path} || do {
		1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1884
		1885	my $map = new_from_path cf::map $path
		1886	or return;
		1887
		1888	$map->{last_save} = $cf::RUNTIME;
		1889
		1890	$map->load_header
		1891	or return;
		1892
		1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
		1898	$map->reset;
		1899	return find $path;
		1900	}
		1901
		1902	$cf::MAP{$path} = $map
		1903	}
		1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
		1908
		1909	sub load {
		1910	my ($self) = @_;
		1911
		1912	local $self->{deny_reset} = 1; # loading can take a long time
		1913
		1914	my $path = $self->{path};
		1915
699	}	1916	{
		1917	my $guard = cf::lock_acquire "map_data:$path";
700		1918
701	if (my $cb = $pkg->can ("unload")) {	1919	return unless $self->valid;
702	eval {	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
703	$cb->($pkg);	1921
		1922	$self->in_memory (cf::MAP_LOADING);
		1923
		1924	$self->alloc;
		1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
		1932	or return;
		1933
		1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1935	if delete $self->{load_original};
		1936
		1937	if (my $uniq = $self->uniq_path) {
		1938	utf8::encode $uniq;
		1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
		1941	$self->clear_unique_items;
		1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
704	1	1945	}
705	} or warn "$pkg unloaded, but with errors: $@";	1946	}
706	}
707		1947
708	Symbol::delete_package $pkg;	1948	$f->resolve_delayed_derefs;
709	}
710		1949
711	sub load_extensions {	1950	cf::cede_to_tick;
712	for my $ext (<$LIBDIR/*.ext>) {	1951	# now do the right thing for maps
713	next unless -r $ext;	1952	$self->link_multipart_objects;
714	eval {	1953	$self->difficulty ($self->estimate_difficulty)
715	load_extension $ext;	1954	unless $self->difficulty;
716	1	1955	cf::cede_to_tick;
717	} or warn "$ext not loaded: $@";
718	}
719	}
720		1956
721	#############################################################################	1957	unless ($self->{deny_activate}) {
722	# load/save/clean perl data associated with a map	1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
		1964	$self->activate;
		1965	}
723		1966
724	*cf::mapsupport::on_clean = sub {	1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
		1969
		1970	$self->in_memory (cf::MAP_IN_MEMORY);
		1971	}
		1972
		1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
		1986	}
		1987
		1988	# find and load all maps in the 3x3 area around a map
		1989	sub load_neighbours {
725	my ($map) = @_;	1990	my ($map) = @_;
726		1991
727	my $path = $map->tmpname;	1992	my @neigh; # diagonal neighbours
728	defined $path or return;
729		1993
730	unlink "$path.pst";	1994	for (0 .. 3) {
731	};	1995	my $neigh = $map->tile_path ($_)
		1996	or next;
		1997	$neigh = find $neigh, $map
		1998	or next;
		1999	$neigh->load;
732		2000
733	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2001	push @neigh,
		2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2004	}
734		2005
735	#############################################################################	2006	for (grep defined $_->[0], @neigh) {
736	# load/save perl data associated with player->ob objects	2007	my ($path, $origin) = @$_;
737		2008	my $neigh = find $path, $origin
738	sub all_objects(@) {	2009	or next;
739	@_, map all_objects ($_->inv), @_	2010	$neigh->load;
		2011	}
740	}	2012	}
741		2013
742	# TODO: compatibility cruft, remove when no longer needed	2014	sub find_sync {
743	cf::player->attach (	2015	my ($path, $origin) = @_;
744	on_load => sub {
745	my ($pl, $path) = @_;
746		2016
747	for my $o (all_objects $pl->ob) {	2017	cf::sync_job { find $path, $origin }
748	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2018	}
749	$o->set_ob_key_value ("_perl_data");
750		2019
751	%$o = %{ Storable::thaw pack "H*", $value };	2020	sub do_load_sync {
		2021	my ($map) = @_;
		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
		2026	cf::sync_job { $map->load };
		2027	}
		2028
		2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
		2043	$MAP_PREFETCHER ||= cf::async {
		2044	$Coro::current->{desc} = "map prefetcher";
		2045
		2046	while (%MAP_PREFETCH) {
		2047	while (my ($k, $v) = each %MAP_PREFETCH) {
		2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
		2052	delete $MAP_PREFETCH{$k};
752	}	2053	}
753	}	2054	}
		2055	undef $MAP_PREFETCHER;
		2056	};
		2057	$MAP_PREFETCHER->prio (6);
		2058
		2059	()
		2060	}
		2061
		2062	sub save {
		2063	my ($self) = @_;
		2064
		2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2066
		2067	$self->{last_save} = $cf::RUNTIME;
		2068
		2069	return unless $self->dirty;
		2070
		2071	my $save = $self->save_path; utf8::encode $save;
		2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2073
		2074	$self->{load_path} = $save;
		2075
		2076	return if $self->{deny_save};
		2077
		2078	local $self->{last_access} = $self->last_access;#d#
		2079
		2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
		2082	$_->contr->save for $self->players;
		2083	};
		2084
		2085	if ($uniq) {
		2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2088	} else {
		2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
754	},	2090	}
755	);	2091	}
756		2092
757	#############################################################################	2093	sub swap_out {
		2094	my ($self) = @_;
758		2095
759	=head2 CORE EXTENSIONS	2096	# save first because save cedes
		2097	$self->save;
760		2098
761	Functions and methods that extend core crossfire objects.	2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2100
		2101	return if $self->players;
		2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2103	return if $self->{deny_save};
		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
		2109	$self->clear;
		2110	}
		2111
		2112	sub reset_at {
		2113	my ($self) = @_;
		2114
		2115	# TODO: safety, remove and allow resettable per-player maps
		2116	return 1e99 if $self->{deny_reset};
		2117
		2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2120
		2121	$time + $to
		2122	}
		2123
		2124	sub should_reset {
		2125	my ($self) = @_;
		2126
		2127	$self->reset_at <= $cf::RUNTIME
		2128	}
		2129
		2130	sub reset {
		2131	my ($self) = @_;
		2132
		2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2134
		2135	return if $self->players;
		2136
		2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
		2148
		2149	delete $cf::MAP{$self->path};
		2150
		2151	$self->deactivate;
		2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
		2154
		2155	$self->unlink_save;
		2156	$self->destroy;
		2157	}
		2158
		2159	my $nuke_counter = "aaaa";
		2160
		2161	sub nuke {
		2162	my ($self) = @_;
		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
		2167	delete $cf::MAP{$self->path};
		2168
		2169	$self->unlink_save;
		2170
		2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
		2173	$self->{deny_save} = 1;
		2174	$self->reset_timeout (1);
		2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2176
		2177	$cf::MAP{$self->path} = $self;
		2178	}
		2179
		2180	$self->reset; # polite request, might not happen
		2181	}
		2182
		2183	=item $maps = cf::map::tmp_maps
		2184
		2185	Returns an arrayref with all map paths of currently instantiated and saved
		2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
		2191	[
		2192	map {
		2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
		2199	}
		2200
		2201	=item $maps = cf::map::random_maps
		2202
		2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
		2205
		2206	=cut
		2207
		2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
		2217	}
		2218
		2219	=item cf::map::unique_maps
		2220
		2221	Returns an arrayref of paths of all shared maps that have
		2222	instantiated unique items. May block.
		2223
		2224	=cut
		2225
		2226	sub unique_maps() {
		2227	[
		2228	map {
		2229	utf8::decode $_;
		2230	/\.map$/
		2231	? normalise $_
		2232	: ()
		2233	} @{ aio_readdir $UNIQUEDIR or [] }
		2234	]
		2235	}
		2236
		2237	package cf;
		2238
		2239	=back
		2240
		2241	=head3 cf::object
		2242
		2243	=cut
		2244
		2245	package cf::object;
762		2246
763	=over 4	2247	=over 4
764		2248
765	=item cf::player::exists $login	2249	=item $ob->inv_recursive
766		2250
767	Returns true when the given account exists.	2251	Returns the inventory of the object _and_ their inventories, recursively.
768		2252
769	=cut	2253	=cut
770		2254
771	sub cf::player::exists($) {	2255	sub inv_recursive_;
772	cf::player::find $_[0]	2256	sub inv_recursive_ {
773	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2257	map { $_, inv_recursive_ $_->inv } @_
774	}	2258	}
		2259
		2260	sub inv_recursive {
		2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2279	my ($uuid, $name) = ($1, $2);
		2280	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2281	or return;
		2282	$pl->ob->uuid eq $uuid
		2283	or return;
		2284
		2285	$pl->ob
		2286	} else {
		2287	warn "$ref: cannot resolve object reference\n";
		2288	undef
		2289	}
		2290	}
		2291
		2292	package cf;
		2293
		2294	=back
		2295
		2296	=head3 cf::object::player
		2297
		2298	=over 4
775		2299
776	=item $player_object->reply ($npc, $msg[, $flags])	2300	=item $player_object->reply ($npc, $msg[, $flags])
777		2301
778	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2302	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
779	can be C<undef>. Does the right thing when the player is currently in a	2303	can be C<undef>. Does the right thing when the player is currently in a
…		…
781		2305
782	=cut	2306	=cut
783		2307
784	# rough implementation of a future "reply" method that works	2308	# rough implementation of a future "reply" method that works
785	# with dialog boxes.	2309	# with dialog boxes.
		2310	#TODO: the first argument must go, split into a $npc->reply_to ( method
786	sub cf::object::player::reply($$$;$) {	2311	sub cf::object::player::reply($$$;$) {
787	my ($self, $npc, $msg, $flags) = @_;	2312	my ($self, $npc, $msg, $flags) = @_;
788		2313
789	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2314	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
790		2315
791	if ($self->{record_replies}) {	2316	if ($self->{record_replies}) {
792	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2317	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2318
793	} else {	2319	} else {
		2320	my $pl = $self->contr;
		2321
		2322	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2323	my $dialog = $pl->{npc_dialog};
		2324	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2325
		2326	} else {
794	$msg = $npc->name . " says: $msg" if $npc;	2327	$msg = $npc->name . " says: $msg" if $npc;
795	$self->message ($msg, $flags);	2328	$self->message ($msg, $flags);
		2329	}
796	}	2330	}
797	}	2331	}
798		2332
799	=item $player->ext_reply ($msgid, $msgtype, %msg)	2333	=item $object->send_msg ($channel, $msg, $color, [extra...])
800		2334
801	Sends an ext reply to the player.
802
803	=cut	2335	=cut
804		2336
805	sub cf::player::ext_reply($$$%) {	2337	sub cf::object::send_msg {
806	my ($self, $id, %msg) = @_;	2338	my $pl = shift->contr
807		2339	or return;
808	$msg{msgid} = $id;	2340	$pl->send_msg (@_);
809
810	$self->send ("ext " . to_json \%msg);
811	}	2341	}
812		2342
813	=item $player_object->may ("access")	2343	=item $player_object->may ("access")
814		2344
815	Returns wether the given player is authorized to access resource "access"	2345	Returns wether the given player is authorized to access resource "access"
…		…
824	(ref $cf::CFG{"may_$access"}	2354	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2355	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	2356	: $cf::CFG{"may_$access"})
827	}	2357	}
828		2358
829	=cut	2359	=item $player_object->enter_link
830		2360
831	#############################################################################	2361	Freezes the player and moves him/her to a special map (C<{link}>).
		2362
		2363	The player should be reasonably safe there for short amounts of time. You
		2364	I<MUST> call C<leave_link> as soon as possible, though.
		2365
		2366	Will never block.
		2367
		2368	=item $player_object->leave_link ($map, $x, $y)
		2369
		2370	Moves the player out of the special C<{link}> map onto the specified
		2371	map. If the map is not valid (or omitted), the player will be moved back
		2372	to the location he/she was before the call to C<enter_link>, or, if that
		2373	fails, to the emergency map position.
		2374
		2375	Might block.
		2376
		2377	=cut
		2378
		2379	sub link_map {
		2380	unless ($LINK_MAP) {
		2381	$LINK_MAP = cf::map::find "{link}"
		2382	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2383	$LINK_MAP->load;
		2384	}
		2385
		2386	$LINK_MAP
		2387	}
		2388
		2389	sub cf::object::player::enter_link {
		2390	my ($self) = @_;
		2391
		2392	$self->deactivate_recursive;
		2393
		2394	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2395
		2396	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2397	if $self->map && $self->map->{path} ne "{link}";
		2398
		2399	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2400	}
		2401
		2402	sub cf::object::player::leave_link {
		2403	my ($self, $map, $x, $y) = @_;
		2404
		2405	return unless $self->contr->active;
		2406
		2407	my $link_pos = delete $self->{_link_pos};
		2408
		2409	unless ($map) {
		2410	# restore original map position
		2411	($map, $x, $y) = @{ $link_pos || [] };
		2412	$map = cf::map::find $map;
		2413
		2414	unless ($map) {
		2415	($map, $x, $y) = @$EMERGENCY_POSITION;
		2416	$map = cf::map::find $map
		2417	or die "FATAL: cannot load emergency map\n";
		2418	}
		2419	}
		2420
		2421	($x, $y) = (-1, -1)
		2422	unless (defined $x) && (defined $y);
		2423
		2424	# use -1 or undef as default coordinates, not 0, 0
		2425	($x, $y) = ($map->enter_x, $map->enter_y)
		2426	if $x <=0 && $y <= 0;
		2427
		2428	$map->load;
		2429	$map->load_neighbours;
		2430
		2431	return unless $self->contr->active;
		2432	$self->activate_recursive;
		2433
		2434	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2435	$self->enter_map ($map, $x, $y);
		2436	}
		2437
		2438	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2439
		2440	Moves the player to the given map-path and coordinates by first freezing
		2441	her, loading and preparing them map, calling the provided $check callback
		2442	that has to return the map if sucecssful, and then unfreezes the player on
		2443	the new (success) or old (failed) map position. In either case, $done will
		2444	be called at the end of this process.
		2445
		2446	=cut
		2447
		2448	our $GOTOGEN;
		2449
		2450	sub cf::object::player::goto {
		2451	my ($self, $path, $x, $y, $check, $done) = @_;
		2452
		2453	# do generation counting so two concurrent goto's will be executed in-order
		2454	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2455
		2456	$self->enter_link;
		2457
		2458	(async {
		2459	$Coro::current->{desc} = "player::goto $path $x $y";
		2460
		2461	# *tag paths override both path and x|y
		2462	if ($path =~ /^\*(.*)$/) {
		2463	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2464	my $ob = $obs[rand @obs];
		2465
		2466	# see if we actually can go there
		2467	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2468	$ob = $obs[rand @obs];
		2469	} else {
		2470	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
		2472	# else put us there anyways for now #d#
		2473
		2474	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2475	} else {
		2476	($path, $x, $y) = (undef, undef, undef);
		2477	}
		2478	}
		2479
		2480	my $map = eval {
		2481	my $map = defined $path ? cf::map::find $path : undef;
		2482
		2483	if ($map) {
		2484	$map = $map->customise_for ($self);
		2485	$map = $check->($map) if $check && $map;
		2486	} else {
		2487	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2488	}
		2489
		2490	$map
		2491	};
		2492
		2493	if ($@) {
		2494	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2495	LOG llevError | logBacktrace, Carp::longmess $@;
		2496	}
		2497
		2498	if ($gen == $self->{_goto_generation}) {
		2499	delete $self->{_goto_generation};
		2500	$self->leave_link ($map, $x, $y);
		2501	}
		2502
		2503	$done->() if $done;
		2504	})->prio (1);
		2505	}
		2506
		2507	=item $player_object->enter_exit ($exit_object)
		2508
		2509	=cut
		2510
		2511	sub parse_random_map_params {
		2512	my ($spec) = @_;
		2513
		2514	my $rmp = { # defaults
		2515	xsize => (cf::rndm 15, 40),
		2516	ysize => (cf::rndm 15, 40),
		2517	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2518	#layout => string,
		2519	};
		2520
		2521	for (split /\n/, $spec) {
		2522	my ($k, $v) = split /\s+/, $_, 2;
		2523
		2524	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2525	}
		2526
		2527	$rmp
		2528	}
		2529
		2530	sub prepare_random_map {
		2531	my ($exit) = @_;
		2532
		2533	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2534
		2535	# all this does is basically replace the /! path by
		2536	# a new random map path (?random/...) with a seed
		2537	# that depends on the exit object
		2538
		2539	my $rmp = parse_random_map_params $exit->msg;
		2540
		2541	if ($exit->map) {
		2542	$rmp->{region} = $exit->region->name;
		2543	$rmp->{origin_map} = $exit->map->path;
		2544	$rmp->{origin_x} = $exit->x;
		2545	$rmp->{origin_y} = $exit->y;
		2546	}
		2547
		2548	$rmp->{random_seed} ||= $exit->random_seed;
		2549
		2550	my $data = cf::to_json $rmp;
		2551	my $md5 = Digest::MD5::md5_hex $data;
		2552	my $meta = "$RANDOMDIR/$md5.meta";
		2553
		2554	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2555	aio_write $fh, 0, (length $data), $data, 0;
		2556	undef $fh;
		2557	aio_rename "$meta~", $meta;
		2558
		2559	$exit->slaying ("?random/$md5");
		2560	$exit->msg (undef);
		2561	}
		2562	}
		2563
		2564	sub cf::object::player::enter_exit {
		2565	my ($self, $exit) = @_;
		2566
		2567	return unless $self->type == cf::PLAYER;
		2568
		2569	if ($exit->slaying eq "/!") {
		2570	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2571	# the problem is that $exit might not survive long enough
		2572	# so it needs to be done right now, right here
		2573	cf::sync_job { prepare_random_map $exit };
		2574	}
		2575
		2576	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2577	my $hp = $exit->stats->hp;
		2578	my $sp = $exit->stats->sp;
		2579
		2580	$self->enter_link;
		2581
		2582	# if exit is damned, update players death & WoR home-position
		2583	$self->contr->savebed ($slaying, $hp, $sp)
		2584	if $exit->flag (FLAG_DAMNED);
		2585
		2586	(async {
		2587	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2588
		2589	$self->deactivate_recursive; # just to be sure
		2590	unless (eval {
		2591	$self->goto ($slaying, $hp, $sp);
		2592
		2593	1;
		2594	}) {
		2595	$self->message ("Something went wrong deep within the crossfire server. "
		2596	. "I'll try to bring you back to the map you were before. "
		2597	. "Please report this to the dungeon master!",
		2598	cf::NDI_UNIQUE | cf::NDI_RED);
		2599
		2600	warn "ERROR in enter_exit: $@";
		2601	$self->leave_link;
		2602	}
		2603	})->prio (1);
		2604	}
		2605
		2606	=head3 cf::client
		2607
		2608	=over 4
		2609
		2610	=item $client->send_drawinfo ($text, $flags)
		2611
		2612	Sends a drawinfo packet to the client. Circumvents output buffering so
		2613	should not be used under normal circumstances.
		2614
		2615	=cut
		2616
		2617	sub cf::client::send_drawinfo {
		2618	my ($self, $text, $flags) = @_;
		2619
		2620	utf8::encode $text;
		2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2622	}
		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "infobox",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "infobox",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	"c/lookat" => {
		2647	id => "infobox",
		2648	title => "Look",
		2649	reply => undef,
		2650	tooltip => "What you saw there",
		2651	},
		2652	);
		2653
		2654	sub cf::client::send_msg {
		2655	my ($self, $channel, $msg, $color, @extra) = @_;
		2656
		2657	$msg = $self->pl->expand_cfpod ($msg);
		2658
		2659	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2660
		2661	# check predefined channels, for the benefit of C
		2662	if ($CHANNEL{$channel}) {
		2663	$channel = $CHANNEL{$channel};
		2664
		2665	$self->ext_msg (channel_info => $channel)
		2666	if $self->can_msg;
		2667
		2668	$channel = $channel->{id};
		2669
		2670	} elsif (ref $channel) {
		2671	# send meta info to client, if not yet sent
		2672	unless (exists $self->{channel}{$channel->{id}}) {
		2673	$self->{channel}{$channel->{id}} = $channel;
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676	}
		2677
		2678	$channel = $channel->{id};
		2679	}
		2680
		2681	return unless @extra || length $msg;
		2682
		2683	if ($self->can_msg) {
		2684	# default colour, mask it out
		2685	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2686	if $color & cf::NDI_DEF;
		2687
		2688	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2689	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2690	} else {
		2691	if ($color >= 0) {
		2692	# replace some tags by gcfclient-compatible ones
		2693	for ($msg) {
		2694	1 while
		2695	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2696	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2697	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2698	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2699	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2700	}
		2701
		2702	$color &= cf::NDI_COLOR_MASK;
		2703
		2704	utf8::encode $msg;
		2705
		2706	if (0 && $msg =~ /\[/) {
		2707	# COMMAND/INFO
		2708	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2709	} else {
		2710	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2711	$self->send_packet ("drawinfo $color $msg")
		2712	}
		2713	}
		2714	}
		2715	}
		2716
		2717	=item $client->ext_msg ($type, @msg)
		2718
		2719	Sends an ext event to the client.
		2720
		2721	=cut
		2722
		2723	sub cf::client::ext_msg($$@) {
		2724	my ($self, $type, @msg) = @_;
		2725
		2726	if ($self->extcmd == 2) {
		2727	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2728	} elsif ($self->extcmd == 1) { # TODO: remove
		2729	push @msg, msgtype => "event_$type";
		2730	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2731	}
		2732	}
		2733
		2734	=item $client->ext_reply ($msgid, @msg)
		2735
		2736	Sends an ext reply to the client.
		2737
		2738	=cut
		2739
		2740	sub cf::client::ext_reply($$@) {
		2741	my ($self, $id, @msg) = @_;
		2742
		2743	if ($self->extcmd == 2) {
		2744	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2745	} elsif ($self->extcmd == 1) {
		2746	#TODO: version 1, remove
		2747	unshift @msg, msgtype => "reply", msgid => $id;
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2749	}
		2750	}
		2751
		2752	=item $success = $client->query ($flags, "text", \&cb)
		2753
		2754	Queues a query to the client, calling the given callback with
		2755	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2756	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2757
		2758	Queries can fail, so check the return code. Or don't, as queries will
		2759	become reliable at some point in the future.
		2760
		2761	=cut
		2762
		2763	sub cf::client::query {
		2764	my ($self, $flags, $text, $cb) = @_;
		2765
		2766	return unless $self->state == ST_PLAYING
		2767	|| $self->state == ST_SETUP
		2768	|| $self->state == ST_CUSTOM;
		2769
		2770	$self->state (ST_CUSTOM);
		2771
		2772	utf8::encode $text;
		2773	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2774
		2775	$self->send_packet ($self->{query_queue}[0][0])
		2776	if @{ $self->{query_queue} } == 1;
		2777
		2778	1
		2779	}
		2780
		2781	cf::client->attach (
		2782	on_connect => sub {
		2783	my ($ns) = @_;
		2784
		2785	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2786	},
		2787	on_reply => sub {
		2788	my ($ns, $msg) = @_;
		2789
		2790	# this weird shuffling is so that direct followup queries
		2791	# get handled first
		2792	my $queue = delete $ns->{query_queue}
		2793	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2794
		2795	(shift @$queue)->[1]->($msg);
		2796	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2797
		2798	push @{ $ns->{query_queue} }, @$queue;
		2799
		2800	if (@{ $ns->{query_queue} } == @$queue) {
		2801	if (@$queue) {
		2802	$ns->send_packet ($ns->{query_queue}[0][0]);
		2803	} else {
		2804	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2805	}
		2806	}
		2807	},
		2808	on_exticmd => sub {
		2809	my ($ns, $buf) = @_;
		2810
		2811	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2812
		2813	if (ref $msg) {
		2814	my ($type, $reply, @payload) =
		2815	"ARRAY" eq ref $msg
		2816	? @$msg
		2817	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2818
		2819	my @reply;
		2820
		2821	if (my $cb = $EXTICMD{$type}) {
		2822	@reply = $cb->($ns, @payload);
		2823	}
		2824
		2825	$ns->ext_reply ($reply, @reply)
		2826	if $reply;
		2827
		2828	} else {
		2829	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2830	}
		2831
		2832	cf::override;
		2833	},
		2834	);
		2835
		2836	=item $client->async (\&cb)
		2837
		2838	Create a new coroutine, running the specified callback. The coroutine will
		2839	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2840	or loss of connection).
		2841
		2842	=cut
		2843
		2844	sub cf::client::async {
		2845	my ($self, $cb) = @_;
		2846
		2847	my $coro = &Coro::async ($cb);
		2848
		2849	$coro->on_destroy (sub {
		2850	delete $self->{_coro}{$coro+0};
		2851	});
		2852
		2853	$self->{_coro}{$coro+0} = $coro;
		2854
		2855	$coro
		2856	}
		2857
		2858	cf::client->attach (
		2859	on_destroy => sub {
		2860	my ($ns) = @_;
		2861
		2862	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2863	},
		2864	);
		2865
		2866	=back
		2867
832		2868
833	=head2 SAFE SCRIPTING	2869	=head2 SAFE SCRIPTING
834		2870
835	Functions that provide a safe environment to compile and execute	2871	Functions that provide a safe environment to compile and execute
836	snippets of perl code without them endangering the safety of the server	2872	snippets of perl code without them endangering the safety of the server
…		…
843	our $safe = new Safe "safe";	2879	our $safe = new Safe "safe";
844	our $safe_hole = new Safe::Hole;	2880	our $safe_hole = new Safe::Hole;
845		2881
846	$SIG{FPE} = 'IGNORE';	2882	$SIG{FPE} = 'IGNORE';
847		2883
848	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2884	$safe->permit_only (Opcode::opset qw(
		2885	:base_core :base_mem :base_orig :base_math
		2886	grepstart grepwhile mapstart mapwhile
		2887	sort time
		2888	));
849		2889
850	# here we export the classes and methods available to script code	2890	# here we export the classes and methods available to script code
851		2891
852	=pod	2892	=pod
853		2893
854	The following fucntions and emthods are available within a safe environment:	2894	The following functions and methods are available within a safe environment:
855		2895
856	cf::object contr pay_amount pay_player map	2896	cf::object
		2897	contr pay_amount pay_player map x y force_find force_add
		2898	insert remove name archname title slaying race decrease_ob_nr
		2899
857	cf::object::player player	2900	cf::object::player
858	cf::player peaceful	2901	player
859	cf::map trigger	2902
		2903	cf::player
		2904	peaceful
		2905
		2906	cf::map
		2907	trigger
860		2908
861	=cut	2909	=cut
862		2910
863	for (	2911	for (
864	["cf::object" => qw(contr pay_amount pay_player map)],	2912	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2913	insert remove inv name archname title slaying race
		2914	decrease_ob_nr)],
865	["cf::object::player" => qw(player)],	2915	["cf::object::player" => qw(player)],
866	["cf::player" => qw(peaceful)],	2916	["cf::player" => qw(peaceful)],
867	["cf::map" => qw(trigger)],	2917	["cf::map" => qw(trigger)],
868	) {	2918	) {
869	no strict 'refs';	2919	no strict 'refs';
…		…
940	=back	2990	=back
941		2991
942	=cut	2992	=cut
943		2993
944	#############################################################################	2994	#############################################################################
		2995	# the server's init and main functions
945		2996
946	=head2 EXTENSION DATABASE SUPPORT	2997	sub load_facedata($) {
		2998	my ($path) = @_;
947		2999
948	Crossfire maintains a very simple database for extension use. It can	3000	# HACK to clear player env face cache, we need some signal framework
949	currently store anything that can be serialised using Storable, which	3001	# for this (global event?)
950	excludes objects.	3002	%ext::player_env::MUSIC_FACE_CACHE = ();
951		3003
952	The parameter C<$family> should best start with the name of the extension	3004	my $enc = JSON::XS->new->utf8->canonical->relaxed;
953	using it, it should be unique.
954		3005
955	=over 4	3006	warn "loading facedata from $path\n";
956		3007
957	=item $hashref = cf::db_get $family	3008	my $facedata;
		3009	0 < aio_load $path, $facedata
		3010	or die "$path: $!";
958		3011
959	Return a hashref for use by the extension C<$family>, which can be	3012	$facedata = Coro::Storable::thaw $facedata;
960	modified. After modifications, you have to call C<cf::db_dirty> or
961	C<cf::db_sync>.
962		3013
963	=item $value = cf::db_get $family => $key	3014	$facedata->{version} == 2
		3015	or cf::cleanup "$path: version mismatch, cannot proceed.";
964		3016
965	Returns a single value from the database	3017	# patch in the exptable
966		3018	$facedata->{resource}{"res/exp_table"} = {
967	=item cf::db_put $family => $hashref	3019	type => FT_RSRC,
968		3020	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
969	Stores the given family hashref into the database. Updates are delayed, if
970	you want the data to be synced to disk immediately, use C<cf::db_sync>.
971
972	=item cf::db_put $family => $key => $value
973
974	Stores the given C<$value> in the family hash. Updates are delayed, if you
975	want the data to be synced to disk immediately, use C<cf::db_sync>.
976
977	=item cf::db_dirty
978
979	Marks the database as dirty, to be updated at a later time.
980
981	=item cf::db_sync
982
983	Immediately write the database to disk I<if it is dirty>.
984
985	=cut
986
987	our $DB;
988
989	{
990	my $path = cf::localdir . "/database.pst";
991
992	sub db_load() {
993	warn "loading database $path\n";#d# remove later
994	$DB = stat $path ? Storable::retrieve $path : { };
995	}
996
997	my $pid;
998
999	sub db_save() {
1000	warn "saving database $path\n";#d# remove later
1001	waitpid $pid, 0 if $pid;
1002	if (0 == ($pid = fork)) {
1003	$DB->{_meta}{version} = 1;
1004	Storable::nstore $DB, "$path~";
1005	rename "$path~", $path;
1006	cf::_exit 0 if defined $pid;
1007	}
1008	}
1009
1010	my $dirty;
1011
1012	sub db_sync() {
1013	db_save if $dirty;
1014	undef $dirty;
1015	}
1016
1017	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1018	db_sync;
1019	});	3021	};
		3022	cf::cede_to_tick;
1020		3023
1021	sub db_dirty() {
1022	$dirty = 1;
1023	$idle->start;
1024	}	3024	{
		3025	my $faces = $facedata->{faceinfo};
1025		3026
1026	sub db_get($;$) {	3027	while (my ($face, $info) = each %$faces) {
1027	@_ >= 2	3028	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1028	? $DB->{$_[0]}{$_[1]}	3029	cf::face::set_visibility $idx, $info->{visibility};
1029	: ($DB->{$_[0]} ||= { })	3030	cf::face::set_magicmap $idx, $info->{magicmap};
1030	}	3031	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3032	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1031		3033
1032	sub db_put($$;$) {	3034	cf::cede_to_tick;
1033	if (@_ >= 3) {
1034	$DB->{$_[0]}{$_[1]} = $_[2];
1035	} else {
1036	$DB->{$_[0]} = $_[1];
1037	}
1038	db_dirty;
1039	}
1040
1041	cf::global->attach (
1042	prio => 10000,
1043	on_cleanup => sub {
1044	db_sync;
1045	},	3035	}
1046	);
1047	}
1048		3036
1049	#############################################################################	3037	while (my ($face, $info) = each %$faces) {
1050	# the server's main()	3038	next unless $info->{smooth};
		3039	my $idx = cf::face::find $face
		3040	or next;
		3041	if (my $smooth = cf::face::find $info->{smooth}) {
		3042	cf::face::set_smooth $idx, $smooth;
		3043	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3044	} else {
		3045	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3046	}
1051		3047
1052	sub cfg_load {	3048	cf::cede_to_tick;
		3049	}
		3050	}
		3051
		3052	{
		3053	my $anims = $facedata->{animinfo};
		3054
		3055	while (my ($anim, $info) = each %$anims) {
		3056	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3057	cf::cede_to_tick;
		3058	}
		3059
		3060	cf::anim::invalidate_all; # d'oh
		3061	}
		3062
		3063	{
		3064	# TODO: for gcfclient pleasure, we should give resources
		3065	# that gcfclient doesn't grok a >10000 face index.
		3066	my $res = $facedata->{resource};
		3067
		3068	my $soundconf = delete $res->{"res/sound.conf"};
		3069
		3070	while (my ($name, $info) = each %$res) {
		3071	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3072	my $data;
		3073
		3074	if ($info->{type} & 1) {
		3075	# prepend meta info
		3076
		3077	my $meta = $enc->encode ({
		3078	name => $name,
		3079	%{ $info->{meta} || {} },
		3080	});
		3081
		3082	$data = pack "(w/a*)*", $meta, $info->{data};
		3083	} else {
		3084	$data = $info->{data};
		3085	}
		3086
		3087	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3088	cf::face::set_type $idx, $info->{type};
		3089
		3090	cf::cede_to_tick;
		3091	}
		3092
		3093	if ($soundconf) {
		3094	$soundconf = $enc->decode (delete $soundconf->{data});
		3095
		3096	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3097	my $sound = $soundconf->{compat}[$_]
		3098	or next;
		3099
		3100	my $face = cf::face::find "sound/$sound->[1]";
		3101	cf::sound::set $sound->[0] => $face;
		3102	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3103	}
		3104
		3105	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3106	my $face = cf::face::find "sound/$v";
		3107	cf::sound::set $k => $face;
		3108	}
		3109	}
		3110	}
		3111
		3112	1
		3113	}
		3114
		3115	register_exticmd fx_want => sub {
		3116	my ($ns, $want) = @_;
		3117
		3118	while (my ($k, $v) = each %$want) {
		3119	$ns->fx_want ($k, $v);
		3120	}
		3121	};
		3122
		3123	sub reload_regions {
		3124	# HACK to clear player env face cache, we need some signal framework
		3125	# for this (global event?)
		3126	%ext::player_env::MUSIC_FACE_CACHE = ();
		3127
		3128	load_resource_file "$MAPDIR/regions"
		3129	or die "unable to load regions file\n";
		3130
		3131	for (cf::region::list) {
		3132	$_->{match} = qr/$_->{match}/
		3133	if exists $_->{match};
		3134	}
		3135	}
		3136
		3137	sub reload_facedata {
		3138	load_facedata "$DATADIR/facedata"
		3139	or die "unable to load facedata\n";
		3140	}
		3141
		3142	sub reload_archetypes {
		3143	load_resource_file "$DATADIR/archetypes"
		3144	or die "unable to load archetypes\n";
		3145	#d# NEED to laod twice to resolve forward references
		3146	# this really needs to be done in an extra post-pass
		3147	# (which needs to be synchronous, so solve it differently)
		3148	load_resource_file "$DATADIR/archetypes"
		3149	or die "unable to load archetypes\n";
		3150	}
		3151
		3152	sub reload_treasures {
		3153	load_resource_file "$DATADIR/treasures"
		3154	or die "unable to load treasurelists\n";
		3155	}
		3156
		3157	sub reload_resources {
		3158	warn "reloading resource files...\n";
		3159
		3160	reload_regions;
		3161	reload_facedata;
		3162	#reload_archetypes;#d#
		3163	reload_archetypes;
		3164	reload_treasures;
		3165
		3166	warn "finished reloading resource files\n";
		3167	}
		3168
		3169	sub init {
		3170	reload_resources;
		3171	}
		3172
		3173	sub reload_config {
1053	open my $fh, "<:utf8", cf::confdir . "/config"	3174	open my $fh, "<:utf8", "$CONFDIR/config"
1054	or return;	3175	or return;
1055		3176
1056	local $/;	3177	local $/;
1057	*CFG = YAML::Syck::Load <$fh>;	3178	*CFG = YAML::Syck::Load <$fh>;
		3179
		3180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3181
		3182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3184
		3185	if (exists $CFG{mlockall}) {
		3186	eval {
		3187	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3188	and die "WARNING: m(un)lockall failed: $!\n";
		3189	};
		3190	warn $@ if $@;
		3191	}
1058	}	3192	}
1059		3193
1060	sub main {	3194	sub main {
1061	cfg_load;	3195	# we must not ever block the main coroutine
1062	db_load;	3196	local $Coro::idle = sub {
		3197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3198	(async {
		3199	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3200	Event::one_event;
		3201	})->prio (Coro::PRIO_MAX);
		3202	};
		3203
		3204	reload_config;
		3205	db_init;
1063	load_extensions;	3206	load_extensions;
		3207
		3208	$TICK_WATCHER->start;
1064	Event::loop;	3209	Event::loop;
1065	}	3210	}
1066		3211
1067	#############################################################################	3212	#############################################################################
1068	# initialisation	3213	# initialisation and cleanup
1069		3214
1070	sub _perl_reload(&) {	3215	# install some emergency cleanup handlers
		3216	BEGIN {
		3217	for my $signal (qw(INT HUP TERM)) {
		3218	Event->signal (
		3219	reentrant => 0,
		3220	data => WF_AUTOCANCEL,
		3221	signal => $signal,
		3222	prio => 0,
		3223	cb => sub {
		3224	cf::cleanup "SIG$signal";
		3225	},
		3226	);
		3227	}
		3228	}
		3229
		3230	sub write_runtime {
		3231	my $runtime = "$LOCALDIR/runtime";
		3232
		3233	# first touch the runtime file to show we are still running:
		3234	# the fsync below can take a very very long time.
		3235
		3236	IO::AIO::aio_utime $runtime, undef, undef;
		3237
		3238	my $guard = cf::lock_acquire "write_runtime";
		3239
		3240	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3241	or return;
		3242
		3243	my $value = $cf::RUNTIME + 90 + 10;
		3244	# 10 is the runtime save interval, for a monotonic clock
		3245	# 60 allows for the watchdog to kill the server.
		3246
		3247	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3248	and return;
		3249
		3250	# always fsync - this file is important
		3251	aio_fsync $fh
		3252	and return;
		3253
		3254	# touch it again to show we are up-to-date
		3255	aio_utime $fh, undef, undef;
		3256
		3257	close $fh
		3258	or return;
		3259
		3260	aio_rename "$runtime~", $runtime
		3261	and return;
		3262
		3263	warn "runtime file written.\n";
		3264
		3265	1
		3266	}
		3267
		3268	sub emergency_save() {
		3269	my $freeze_guard = cf::freeze_mainloop;
		3270
		3271	warn "enter emergency perl save\n";
		3272
		3273	cf::sync_job {
		3274	# use a peculiar iteration method to avoid tripping on perl
		3275	# refcount bugs in for. also avoids problems with players
		3276	# and maps saved/destroyed asynchronously.
		3277	warn "begin emergency player save\n";
		3278	for my $login (keys %cf::PLAYER) {
		3279	my $pl = $cf::PLAYER{$login} or next;
		3280	$pl->valid or next;
		3281	$pl->save;
		3282	}
		3283	warn "end emergency player save\n";
		3284
		3285	warn "begin emergency map save\n";
		3286	for my $path (keys %cf::MAP) {
		3287	my $map = $cf::MAP{$path} or next;
		3288	$map->valid or next;
		3289	$map->save;
		3290	}
		3291	warn "end emergency map save\n";
		3292
		3293	warn "begin emergency database checkpoint\n";
		3294	BDB::db_env_txn_checkpoint $DB_ENV;
		3295	warn "end emergency database checkpoint\n";
		3296	};
		3297
		3298	warn "leave emergency perl save\n";
		3299	}
		3300
		3301	sub post_cleanup {
1071	my ($msg) = @_;	3302	my ($make_core) = @_;
1072		3303
1073	$msg->("reloading...");	3304	warn Carp::longmess "post_cleanup backtrace"
		3305	if $make_core;
		3306	}
1074		3307
1075	eval {	3308	sub do_reload_perl() {
1076	# cancel all watchers	3309	# can/must only be called in main
		3310	if ($Coro::current != $Coro::main) {
		3311	warn "can only reload from main coroutine";
		3312	return;
		3313	}
		3314
		3315	warn "reloading...";
		3316
		3317	warn "entering sync_job";
		3318
		3319	cf::sync_job {
		3320	cf::write_runtime; # external watchdog should not bark
		3321	cf::emergency_save;
		3322	cf::write_runtime; # external watchdog should not bark
		3323
		3324	warn "syncing database to disk";
		3325	BDB::db_env_txn_checkpoint $DB_ENV;
		3326
		3327	# if anything goes wrong in here, we should simply crash as we already saved
		3328
		3329	warn "cancelling all WF_AUTOCANCEL watchers";
1077	for (Event::all_watchers) {	3330	for (Event::all_watchers) {
1078	$_->cancel if $_->data & WF_AUTOCANCEL;	3331	$_->cancel if $_->data & WF_AUTOCANCEL;
1079	}	3332	}
1080		3333
1081	# unload all extensions	3334	warn "flushing outstanding aio requests";
1082	for (@exts) {	3335	for (;;) {
1083	$msg->("unloading <$_>");	3336	BDB::flush;
1084	unload_extension $_;	3337	IO::AIO::flush;
		3338	Coro::cede;
		3339	last unless IO::AIO::nreqs || BDB::nreqs;
		3340	warn "iterate...";
		3341	}
		3342
		3343	++$RELOAD;
		3344
		3345	warn "cancelling all extension coros";
		3346	$_->cancel for values %EXT_CORO;
		3347	%EXT_CORO = ();
		3348
		3349	warn "removing commands";
		3350	%COMMAND = ();
		3351
		3352	warn "removing ext/exti commands";
		3353	%EXTCMD = ();
		3354	%EXTICMD = ();
		3355
		3356	warn "unloading/nuking all extensions";
		3357	for my $pkg (@EXTS) {
		3358	warn "... unloading $pkg";
		3359
		3360	if (my $cb = $pkg->can ("unload")) {
		3361	eval {
		3362	$cb->($pkg);
		3363	1
		3364	} or warn "$pkg unloaded, but with errors: $@";
1085	}	3365	}
1086		3366
		3367	warn "... nuking $pkg";
		3368	Symbol::delete_package $pkg;
		3369	}
		3370
1087	# unload all modules loaded from $LIBDIR	3371	warn "unloading all perl modules loaded from $LIBDIR";
1088	while (my ($k, $v) = each %INC) {	3372	while (my ($k, $v) = each %INC) {
1089	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3373	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1090		3374
1091	$msg->("removing <$k>");	3375	warn "... unloading $k";
1092	delete $INC{$k};	3376	delete $INC{$k};
1093		3377
1094	$k =~ s/\.pm$//;	3378	$k =~ s/\.pm$//;
1095	$k =~ s/\//::/g;	3379	$k =~ s/\//::/g;
1096		3380
…		…
1099	}	3383	}
1100		3384
1101	Symbol::delete_package $k;	3385	Symbol::delete_package $k;
1102	}	3386	}
1103		3387
1104	# sync database to disk
1105	cf::db_sync;
1106
1107	# get rid of safe::, as good as possible	3388	warn "getting rid of safe::, as good as possible";
1108	Symbol::delete_package "safe::$_"	3389	Symbol::delete_package "safe::$_"
1109	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3390	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1110		3391
1111	# remove register_script_function callbacks
1112	# TODO
1113
1114	# unload cf.pm "a bit"	3392	warn "unloading cf.pm \"a bit\"";
1115	delete $INC{"cf.pm"};	3393	delete $INC{"cf.pm"};
		3394	delete $INC{"cf/pod.pm"};
1116		3395
1117	# don't, removes xs symbols, too,	3396	# don't, removes xs symbols, too,
1118	# and global variables created in xs	3397	# and global variables created in xs
1119	#Symbol::delete_package __PACKAGE__;	3398	#Symbol::delete_package __PACKAGE__;
1120		3399
1121	# reload cf.pm	3400	warn "unload completed, starting to reload now";
		3401
1122	$msg->("reloading cf.pm");	3402	warn "reloading cf.pm";
1123	require cf;	3403	require cf;
		3404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1124		3405
1125	# load config and database again	3406	warn "loading config and database again";
1126	cf::cfg_load;	3407	cf::reload_config;
1127	cf::db_load;
1128		3408
1129	# load extensions	3409	warn "loading extensions";
1130	$msg->("load extensions");
1131	cf::load_extensions;	3410	cf::load_extensions;
1132		3411
1133	# reattach attachments to objects	3412	warn "reattaching attachments to objects/players";
1134	$msg->("reattach");	3413	_global_reattach; # objects, sockets
1135	_global_reattach;	3414	warn "reattaching attachments to maps";
		3415	reattach $_ for values %MAP;
		3416	warn "reattaching attachments to players";
		3417	reattach $_ for values %PLAYER;
		3418
		3419	warn "leaving sync_job";
		3420
		3421	1
		3422	} or do {
		3423	warn $@;
		3424	warn "error while reloading, exiting.";
		3425	exit 1;
1136	};	3426	};
1137	$msg->($@) if $@;
1138		3427
1139	$msg->("reloaded");	3428	warn "reloaded";
1140	};	3429	};
1141		3430
1142	sub perl_reload() {	3431	our $RELOAD_WATCHER; # used only during reload
1143	_perl_reload {	3432
1144	warn $_[0];	3433	sub reload_perl() {
1145	print "$_[0]\n";	3434	# doing reload synchronously and two reloads happen back-to-back,
		3435	# coro crashes during coro_state_free->destroy here.
		3436
		3437	$RELOAD_WATCHER ||= Event->timer (
		3438	reentrant => 0,
		3439	after => 0,
		3440	data => WF_AUTOCANCEL,
		3441	cb => sub {
		3442	do_reload_perl;
		3443	undef $RELOAD_WATCHER;
		3444	},
1146	};	3445	);
1147	}	3446	}
1148		3447
1149	register "<global>", __PACKAGE__;
1150
1151	register_command "perl-reload" => sub {	3448	register_command "reload" => sub {
1152	my ($who, $arg) = @_;	3449	my ($who, $arg) = @_;
1153		3450
1154	if ($who->flag (FLAG_WIZ)) {	3451	if ($who->flag (FLAG_WIZ)) {
1155	_perl_reload {	3452	$who->message ("reloading server.");
1156	warn $_[0];	3453	async {
1157	$who->message ($_[0]);	3454	$Coro::current->{desc} = "perl_reload";
		3455	reload_perl;
1158	};	3456	};
1159	}	3457	}
1160	};	3458	};
1161		3459
1162	unshift @INC, $LIBDIR;	3460	unshift @INC, $LIBDIR;
1163		3461
		3462	my $bug_warning = 0;
		3463
		3464	our @WAIT_FOR_TICK;
		3465	our @WAIT_FOR_TICK_BEGIN;
		3466
		3467	sub wait_for_tick {
		3468	return unless $TICK_WATCHER->is_active;
		3469	return if $Coro::current == $Coro::main;
		3470
		3471	my $signal = new Coro::Signal;
		3472	push @WAIT_FOR_TICK, $signal;
		3473	$signal->wait;
		3474	}
		3475
		3476	sub wait_for_tick_begin {
		3477	return unless $TICK_WATCHER->is_active;
		3478	return if $Coro::current == $Coro::main;
		3479
		3480	my $signal = new Coro::Signal;
		3481	push @WAIT_FOR_TICK_BEGIN, $signal;
		3482	$signal->wait;
		3483	}
		3484
1164	$TICK_WATCHER = Event->timer (	3485	$TICK_WATCHER = Event->timer (
		3486	reentrant => 0,
		3487	parked => 1,
1165	prio => 0,	3488	prio => 0,
1166	at => $NEXT_TICK || 1,	3489	at => $NEXT_TICK || $TICK,
1167	data => WF_AUTOCANCEL,	3490	data => WF_AUTOCANCEL,
1168	cb => sub {	3491	cb => sub {
		3492	if ($Coro::current != $Coro::main) {
		3493	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3494	unless ++$bug_warning > 10;
		3495	return;
		3496	}
		3497
		3498	$NOW = $tick_start = Event::time;
		3499
1169	cf::server_tick; # one server iteration	3500	cf::server_tick; # one server iteration
1170		3501
1171	my $NOW = Event::time;	3502	$RUNTIME += $TICK;
1172	$NEXT_TICK += $TICK;	3503	$NEXT_TICK += $TICK;
		3504
		3505	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3506	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3507	Coro::async_pool {
		3508	$Coro::current->{desc} = "runtime saver";
		3509	write_runtime
		3510	or warn "ERROR: unable to write runtime file: $!";
		3511	};
		3512	}
		3513
		3514	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3515	$sig->send;
		3516	}
		3517	while (my $sig = shift @WAIT_FOR_TICK) {
		3518	$sig->send;
		3519	}
		3520
		3521	$NOW = Event::time;
1173		3522
1174	# if we are delayed by four ticks or more, skip them all	3523	# if we are delayed by four ticks or more, skip them all
1175	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3524	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1176		3525
1177	$TICK_WATCHER->at ($NEXT_TICK);	3526	$TICK_WATCHER->at ($NEXT_TICK);
1178	$TICK_WATCHER->start;	3527	$TICK_WATCHER->start;
		3528
		3529	$LOAD = ($NOW - $tick_start) / $TICK;
		3530	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3531
		3532	_post_tick;
1179	},	3533	},
1180	);	3534	);
1181		3535
		3536	{
		3537	BDB::min_parallel 8;
		3538	BDB::max_poll_time $TICK * 0.1;
		3539	$BDB_POLL_WATCHER = Event->io (
		3540	reentrant => 0,
		3541	fd => BDB::poll_fileno,
		3542	poll => 'r',
		3543	prio => 0,
		3544	data => WF_AUTOCANCEL,
		3545	cb => \&BDB::poll_cb,
		3546	);
		3547
		3548	BDB::set_sync_prepare {
		3549	my $status;
		3550	my $current = $Coro::current;
		3551	(
		3552	sub {
		3553	$status = $!;
		3554	$current->ready; undef $current;
		3555	},
		3556	sub {
		3557	Coro::schedule while defined $current;
		3558	$! = $status;
		3559	},
		3560	)
		3561	};
		3562
		3563	unless ($DB_ENV) {
		3564	$DB_ENV = BDB::db_env_create;
		3565	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3566	| BDB::LOG_AUTOREMOVE, 1);
		3567	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3568	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3569
		3570	cf::sync_job {
		3571	eval {
		3572	BDB::db_env_open
		3573	$DB_ENV,
		3574	$BDBDIR,
		3575	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3576	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3577	0666;
		3578
		3579	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3580	};
		3581
		3582	cf::cleanup "db_env_open(db): $@" if $@;
		3583	};
		3584	}
		3585
		3586	$BDB_DEADLOCK_WATCHER = Event->timer (
		3587	after => 3,
		3588	interval => 1,
		3589	hard => 1,
		3590	prio => 0,
		3591	data => WF_AUTOCANCEL,
		3592	cb => sub {
		3593	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3594	},
		3595	);
		3596	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3597	after => 11,
		3598	interval => 60,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
		3602	cb => sub {
		3603	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3604	},
		3605	);
		3606	$BDB_TRICKLE_WATCHER = Event->timer (
		3607	after => 5,
		3608	interval => 10,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3614	},
		3615	);
		3616	}
		3617
		3618	{
		3619	IO::AIO::min_parallel 8;
		3620
		3621	undef $Coro::AIO::WATCHER;
1182	IO::AIO::max_poll_time $TICK * 0.2;	3622	IO::AIO::max_poll_time $TICK * 0.1;
1183		3623	$AIO_POLL_WATCHER = Event->io (
1184	Event->io (fd => IO::AIO::poll_fileno,	3624	reentrant => 0,
1185	poll => 'r',
1186	prio => 5,
1187	data => WF_AUTOCANCEL,	3625	data => WF_AUTOCANCEL,
		3626	fd => IO::AIO::poll_fileno,
		3627	poll => 'r',
		3628	prio => 0,
1188	cb => \&IO::AIO::poll_cb);	3629	cb => \&IO::AIO::poll_cb,
		3630	);
		3631	}
		3632
		3633	my $_log_backtrace;
		3634
		3635	sub _log_backtrace {
		3636	my ($msg, @addr) = @_;
		3637
		3638	$msg =~ s/\n//;
		3639
		3640	# limit the # of concurrent backtraces
		3641	if ($_log_backtrace < 2) {
		3642	++$_log_backtrace;
		3643	async {
		3644	$Coro::current->{desc} = "abt $msg";
		3645
		3646	my @bt = fork_call {
		3647	@addr = map { sprintf "%x", $_ } @addr;
		3648	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3649	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3650	or die "addr2line: $!";
		3651
		3652	my @funcs;
		3653	my @res = <$fh>;
		3654	chomp for @res;
		3655	while (@res) {
		3656	my ($func, $line) = splice @res, 0, 2, ();
		3657	push @funcs, "[$func] $line";
		3658	}
		3659
		3660	@funcs
		3661	};
		3662
		3663	LOG llevInfo, "[ABT] $msg\n";
		3664	LOG llevInfo, "[ABT] $_\n" for @bt;
		3665	--$_log_backtrace;
		3666	};
		3667	} else {
		3668	LOG llevInfo, "[ABT] $msg\n";
		3669	LOG llevInfo, "[ABT] [suppressed]\n";
		3670	}
		3671	}
		3672
		3673	# load additional modules
		3674	use cf::pod;
		3675
		3676	END { cf::emergency_save }
1189		3677
1190	1	3678	1
1191		3679

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines