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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 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 3.61 ();
		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
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
		28	use Digest::MD5;
		29	use Fcntl;
11	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
12	use Time::HiRes;	32	use Time::HiRes;
13	use Event;	33	use Compress::LZF;
		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
14	$Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
15		42
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
18		45
19	use strict;	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		47
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		49
23	our %COMMAND = ();	50	our %COMMAND = ();
24	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
26		58
27	_init_vars;	59	our $RELOAD; # number of reloads so far
28
29	our @EVENT;	60	our @EVENT;
30	our $LIBDIR = datadir . "/ext";
31		61
32	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
33	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34	our $NEXT_TICK;	78	our $NEXT_TICK;
		79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
35		84
36	our %CFG;	85	our %CFG;
37		86
38	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
		88	our $RUNTIME;
		89
		90	our %PLAYER; # all users
		91	our %MAP; # all maps
		92	our $LINK_MAP; # the special {link} map, which is always available
		93
		94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
		101	binmode STDOUT;
		102	binmode STDERR;
		103
		104	# read virtual server time, if available
		105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		106	open my $fh, "<", "$LOCALDIR/runtime"
		107	or die "unable to read runtime file: $!";
		108	$RUNTIME = <$fh> + 0.;
		109	}
		110
		111	mkdir $_
		112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		113
		114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
39		117
40	#############################################################################	118	#############################################################################
41		119
42	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
43		121
…		…
45		123
46	=item $cf::UPTIME	124	=item $cf::UPTIME
47		125
48	The timestamp of the server start (so not actually an uptime).	126	The timestamp of the server start (so not actually an uptime).
49		127
50	=item $cf::LIBDIR	128	=item $cf::RUNTIME
51		129
52	The perl library directory, where extensions and cf-specific modules can	130	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.	131	every server tick.
		132
		133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		136
		137	Various directories - "/etc", read-only install directory, perl-library
		138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
		141
		142	=item $cf::NOW
		143
		144	The time of the last (current) server tick.
54		145
55	=item $cf::TICK	146	=item $cf::TICK
56		147
57	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
58		159
59	=item %cf::CFG	160	=item %cf::CFG
60		161
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
63		170
64	=back	171	=back
65		172
66	=cut	173	=cut
67		174
68	BEGIN {	175	BEGIN {
69	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	177	my $msg = join "", @_;
		178
71	$msg .= "\n"	179	$msg .= "\n"
72	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
73		181
74	print STDERR "cfperl: $msg";	182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
75	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
76	};	186	};
77	}	187	}
78		188
		189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
80		196
81	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
82	# within the Safe compartment.	198	# within the Safe compartment.
83	for my $pkg (qw(	199	for my $pkg (qw(
		200	cf::global cf::attachable
84	cf::object cf::object::player	201	cf::object cf::object::player
85	cf::client_socket cf::player	202	cf::client cf::player
86	cf::arch cf::living	203	cf::arch cf::living
87	cf::map cf::party cf::region	204	cf::map cf::party cf::region
88	)) {	205	)) {
89	no strict 'refs';	206	no strict 'refs';
90	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	207	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
92		209
93	$Event::DIED = sub {	210	$Event::DIED = sub {
94	warn "error in event callback: @_";	211	warn "error in event callback: @_";
95	};	212	};
96		213
97	my %ext_pkg;	214	#############################################################################
98	my @exts;
99	my @hook;
100		215
101	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
102		217
103	=over 4	218	=over 4
104		219
105	=cut	220	=item dumpval $ref
106		221
107	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
108		242
109	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
110		244
111	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
112		246
113	=cut
114
115	sub from_json($) {
116	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
117	JSON::Syck::Load $_[0]
118	}
119
120	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
121		248
122	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
123		250
124	=cut	251	=cut
125		252
126	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
128	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
		257
		258	=item cf::lock_wait $string
		259
		260	Wait until the given lock is available. See cf::lock_acquire.
		261
		262	=item my $lock = cf::lock_acquire $string
		263
		264	Wait until the given lock is available and then acquires it and returns
		265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		266	for example when the coroutine gets canceled), the lock is automatically
		267	returned.
		268
		269	Lock names should begin with a unique identifier (for example, cf::map::find
		270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
		276	=cut
		277
		278	our %LOCK;
		279
		280	sub lock_wait($) {
		281	my ($key) = @_;
		282
		283	# wait for lock, if any
		284	while ($LOCK{$key}) {
		285	push @{ $LOCK{$key} }, $Coro::current;
		286	Coro::schedule;
		287	}
		288	}
		289
		290	sub lock_acquire($) {
		291	my ($key) = @_;
		292
		293	# wait, to be sure we are not locked
		294	lock_wait $key;
		295
		296	$LOCK{$key} = [];
		297
		298	Coro::guard {
		299	# wake up all waiters, to be on the safe side
		300	$_->ready for @{ delete $LOCK{$key} };
		301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
		330	=item cf::sync_job { BLOCK }
		331
		332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		333	is always able to handle events or runnable, as Crossfire TRT is only
		334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
		336
		337	If it must be done, put the blocking parts into C<sync_job>. This will run
		338	the given BLOCK in another coroutine while waiting for the result. The
		339	server will be frozen during this time, so the block should either finish
		340	fast or be very important.
		341
		342	=cut
		343
		344	sub sync_job(&) {
		345	my ($job) = @_;
		346
		347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
		350	# this is the main coro, too bad, we have to block
		351	# till the operation succeeds, freezing the server :/
		352
		353	# TODO: use suspend/resume instead
		354	# (but this is cancel-safe)
		355	my $freeze_guard = freeze_mainloop;
		356
		357	my $busy = 1;
		358	my @res;
		359
		360	(async {
		361	@res = eval { $job->() };
		362	warn $@ if $@;
		363	undef $busy;
		364	})->prio (Coro::PRIO_MAX);
		365
		366	while ($busy) {
		367	Coro::cede or Event::one_event;
		368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
		377	wantarray ? @res : $res[0]
		378	} else {
		379	# we are in another coroutine, how wonderful, everything just works
		380
		381	$job->()
		382	}
		383	}
		384
		385	=item $coro = cf::async_ext { BLOCK }
		386
		387	Like async, but this coro is automatically being canceled when the
		388	extension calling this is being unloaded.
		389
		390	=cut
		391
		392	sub async_ext(&) {
		393	my $cb = shift;
		394
		395	my $coro = &Coro::async ($cb);
		396
		397	$coro->on_destroy (sub {
		398	delete $EXT_CORO{$coro+0};
		399	});
		400	$EXT_CORO{$coro+0} = $coro;
		401
		402	$coro
		403	}
		404
		405	=item fork_call { }, $args
		406
		407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
		411
		412	=cut
		413
		414	sub fork_call(&@) {
		415	my ($cb, @args) = @_;
		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
		423	close $fh2;
		424
		425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		426	$res = Coro::Storable::thaw $res;
		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
		446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
129	}	574	}
130		575
131	=back	576	=back
132		577
133	=cut	578	=cut
134		579
135	#############################################################################	580	#############################################################################
136		581
137	=head2 EVENTS AND OBJECT ATTACHMENTS	582	=head2 ATTACHABLE OBJECTS
		583
		584	Many objects in crossfire are so-called attachable objects. That means you can
		585	attach callbacks/event handlers (a collection of which is called an "attachment")
		586	to it. All such attachable objects support the following methods.
		587
		588	In the following description, CLASS can be any of C<global>, C<object>
		589	C<player>, C<client> or C<map> (i.e. the attachable objects in
		590	Crossfire TRT).
138		591
139	=over 4	592	=over 4
140		593
141	=item $object->attach ($attachment, key => $value...)
142
143	=item $object->detach ($attachment)
144
145	Attach/detach a pre-registered attachment to an object.
146
147	=item $player->attach ($attachment, key => $value...)
148
149	=item $player->detach ($attachment)
150
151	Attach/detach a pre-registered attachment to a player.
152
153	=item $map->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
154		595
155	=item $map->detach ($attachment)	596	=item $attachable->detach ($attachment)
156		597
157	Attach/detach a pre-registered attachment to a map.	598	Attach/detach a pre-registered attachment to a specific object and give it
		599	the specified key/value pairs as arguments.
158		600
159	=item $bool = $object->attached ($name)	601	Example, attach a minesweeper attachment to the given object, making it a
		602	10x10 minesweeper game:
160		603
161	=item $bool = $player->attached ($name)	604	$obj->attach (minesweeper => width => 10, height => 10);
162		605
163	=item $bool = $map->attached ($name)	606	=item $bool = $attachable->attached ($name)
164		607
165	Checks wether the named attachment is currently attached to the object.	608	Checks wether the named attachment is currently attached to the object.
166		609
167	=item cf::attach_global ...	610	=item cf::CLASS->attach ...
168		611
169	Attach handlers for global events.	612	=item cf::CLASS->detach ...
170		613
171	This and all following C<attach_*>-functions expect any number of the	614	Define an anonymous attachment and attach it to all objects of the given
172	following handler/hook descriptions:	615	CLASS. See the next function for an explanation of its arguments.
		616
		617	You can attach to global events by using the C<cf::global> class.
		618
		619	Example, log all player logins:
		620
		621	cf::player->attach (
		622	on_login => sub {
		623	my ($pl) = @_;
		624	...
		625	},
		626	);
		627
		628	Example, attach to the jeweler skill:
		629
		630	cf::object->attach (
		631	type => cf::SKILL,
		632	subtype => cf::SK_JEWELER,
		633	on_use_skill => sub {
		634	my ($sk, $ob, $part, $dir, $msg) = @_;
		635	...
		636	},
		637	);
		638
		639	=item cf::CLASS::attachment $name, ...
		640
		641	Register an attachment by C<$name> through which attachable objects of the
		642	given CLASS can refer to this attachment.
		643
		644	Some classes such as crossfire maps and objects can specify attachments
		645	that are attached at load/instantiate time, thus the need for a name.
		646
		647	These calls expect any number of the following handler/hook descriptions:
173		648
174	=over 4	649	=over 4
175		650
176	=item prio => $number	651	=item prio => $number
177		652
…		…
179	by another C<prio> setting). Lower priority handlers get executed	654	by another C<prio> setting). Lower priority handlers get executed
180	earlier. The default priority is C<0>, and many built-in handlers are	655	earlier. The default priority is C<0>, and many built-in handlers are
181	registered at priority C<-1000>, so lower priorities should not be used	656	registered at priority C<-1000>, so lower priorities should not be used
182	unless you know what you are doing.	657	unless you know what you are doing.
183		658
		659	=item type => $type
		660
		661	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		662	given type of objects only (the additional parameter C<subtype> can be
		663	used to further limit to the given subtype).
		664
184	=item on_I<event> => \&cb	665	=item on_I<event> => \&cb
185		666
186	Call the given code reference whenever the named event happens (event is	667	Call the given code reference whenever the named event happens (event is
187	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	668	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
188	handlers are recognised generally depends on the type of object these	669	handlers are recognised generally depends on the type of object these
…		…
197	package and register them. Only handlers for eevents supported by the	678	package and register them. Only handlers for eevents supported by the
198	object/class are recognised.	679	object/class are recognised.
199		680
200	=back	681	=back
201		682
202	=item cf::attach_to_type $object_type, $subtype, ...	683	Example, define an attachment called "sockpuppet" that calls the given
		684	event handler when a monster attacks:
203		685
204	Attach handlers for a specific object type (e.g. TRANSPORT) and	686	cf::object::attachment sockpuppet =>
205	subtype. If C<$subtype> is zero or undef, matches all objects of the given	687	on_skill_attack => sub {
206	type.	688	my ($self, $victim) = @_;
207		689	...
208	=item cf::attach_to_objects ...
209
210	Attach handlers to all objects. Do not use this except for debugging or
211	very rare events, as handlers are (obviously) called for I<all> objects in
212	the game.
213
214	=item cf::attach_to_players ...
215
216	Attach handlers to all players.
217
218	=item cf::attach_to_maps ...
219
220	Attach handlers to all maps.
221
222	=item cf:register_attachment $name, ...
223
224	Register an attachment by name through which objects can refer to this
225	attachment.
226
227	=item cf:register_player_attachment $name, ...
228
229	Register an attachment by name through which players can refer to this
230	attachment.
231
232	=item cf:register_map_attachment $name, ...
233
234	Register an attachment by name through which maps can refer to this
235	attachment.
236
237	=cut
238
239	# the following variables are defined in .xs and must not be re-created
240	our @CB_GLOBAL = (); # registry for all global events
241	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
242	our @CB_PLAYER = ();
243	our @CB_TYPE = (); # registry for type (cf-object class) based events
244	our @CB_MAP = ();
245
246	my %attachment;
247
248	sub _attach_cb($\%$$$) {
249	my ($registry, $undo, $event, $prio, $cb) = @_;
250
251	use sort 'stable';
252
253	$cb = [$prio, $cb];
254
255	@{$registry->[$event]} = sort
256	{ $a->[0] cmp $b->[0] }
257	@{$registry->[$event] || []}, $cb;
258
259	push @{$undo->{cb}}, [$event, $cb];
260	}
261
262	# attach handles attaching event callbacks
263	# the only thing the caller has to do is pass the correct
264	# registry (== where the callback attaches to).
265	sub _attach(\@$@) {
266	my ($registry, $klass, @arg) = @_;
267
268	my $prio = 0;
269
270	my %undo = (
271	registry => $registry,
272	cb => [],
273	);
274
275	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
276
277	while (@arg) {
278	my $type = shift @arg;
279
280	if ($type eq "prio") {
281	$prio = shift @arg;
282
283	} elsif ($type eq "package") {
284	my $pkg = shift @arg;
285
286	while (my ($name, $id) = each %cb_id) {
287	if (my $cb = $pkg->can ($name)) {
288	_attach_cb $registry, %undo, $id, $prio, $cb;
289	}
290	}	690	}
291
292	} elsif (exists $cb_id{$type}) {
293	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
294
295	} elsif (ref $type) {
296	warn "attaching objects not supported, ignoring.\n";
297
298	} else {
299	shift @arg;
300	warn "attach argument '$type' not supported, ignoring.\n";
301	}
302	}
303
304	\%undo
305	}
306
307	sub _attach_attachment {
308	my ($obj, $name, %arg) = @_;
309
310	return if exists $obj->{_attachment}{$name};
311
312	my $res;
313
314	if (my $attach = $attachment{$name}) {
315	my $registry = $obj->registry;
316
317	for (@$attach) {
318	my ($klass, @attach) = @$_;
319	$res = _attach @$registry, $klass, @attach;
320	}
321
322	$obj->{$name} = \%arg;
323	} else {
324	warn "object uses attachment '$name' that is not available, postponing.\n";
325	}
326
327	$obj->{_attachment}{$name} = undef;
328
329	$res->{attachment} = $name;
330	$res
331	}
332
333	*cf::object::attach =
334	*cf::player::attach =
335	*cf::map::attach = sub {
336	my ($obj, $name, %arg) = @_;
337
338	_attach_attachment $obj, $name, %arg;
339	};
340
341	# all those should be optimised
342	*cf::object::detach =
343	*cf::player::detach =
344	*cf::map::detach = sub {
345	my ($obj, $name) = @_;
346
347	delete $obj->{_attachment}{$name};
348	reattach ($obj);
349	};
350
351	*cf::object::attached =
352	*cf::player::attached =
353	*cf::map::attached = sub {
354	my ($obj, $name) = @_;
355
356	exists $obj->{_attachment}{$name}
357	};
358
359	sub attach_global {
360	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
361	}
362
363	sub attach_to_type {
364	my $type = shift;
365	my $subtype = shift;
366
367	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
368	}
369
370	sub attach_to_objects {
371	_attach @CB_OBJECT, KLASS_OBJECT, @_
372	}
373
374	sub attach_to_players {
375	_attach @CB_PLAYER, KLASS_PLAYER, @_
376	}
377
378	sub attach_to_maps {
379	_attach @CB_MAP, KLASS_MAP, @_
380	}
381
382	sub register_attachment {
383	my $name = shift;
384
385	$attachment{$name} = [[KLASS_OBJECT, @_]];
386	}
387
388	sub register_player_attachment {
389	my $name = shift;
390
391	$attachment{$name} = [[KLASS_PLAYER, @_]];
392	}
393
394	sub register_map_attachment {
395	my $name = shift;
396
397	$attachment{$name} = [[KLASS_MAP, @_]];
398	}
399
400	our $override;
401	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
402
403	sub override {
404	$override = 1;
405	@invoke_results = ();
406	}
407
408	sub do_invoke {
409	my $event = shift;
410	my $callbacks = shift;
411
412	@invoke_results = ();
413
414	local $override;
415
416	for (@$callbacks) {
417	eval { &{$_->[1]} };
418
419	if ($@) {
420	warn "$@";
421	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
422	override;
423	}
424
425	return 1 if $override;
426	}
427
428	0	691	}
429	}
430		692
431	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	693	=item $attachable->valid
432
433	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
434
435	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
436
437	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
438
439	Generate a global/object/player/map-specific event with the given arguments.
440
441	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).
444
445	=back
446
447	=cut
448
449	#############################################################################
450
451	=head2 METHODS VALID FOR ALL CORE OBJECTS
452
453	=over 4
454
455	=item $object->valid, $player->valid, $map->valid
456		694
457	Just because you have a perl object does not mean that the corresponding	695	Just because you have a perl object does not mean that the corresponding
458	C-level object still exists. If you try to access an object that has no	696	C-level object still exists. If you try to access an object that has no
459	valid C counterpart anymore you get an exception at runtime. This method	697	valid C counterpart anymore you get an exception at runtime. This method
460	can be used to test for existence of the C object part without causing an	698	can be used to test for existence of the C object part without causing an
461	exception.	699	exception.
462		700
		701	=cut
		702
		703	# the following variables are defined in .xs and must not be re-created
		704	our @CB_GLOBAL = (); # registry for all global events
		705	our @CB_ATTACHABLE = (); # registry for all attachables
		706	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		707	our @CB_PLAYER = ();
		708	our @CB_CLIENT = ();
		709	our @CB_TYPE = (); # registry for type (cf-object class) based events
		710	our @CB_MAP = ();
		711
		712	my %attachment;
		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
		720	sub _attach_cb($$$$) {
		721	my ($registry, $event, $prio, $cb) = @_;
		722
		723	use sort 'stable';
		724
		725	$cb = [$prio, $cb];
		726
		727	@{$registry->[$event]} = sort
		728	{ $a->[0] cmp $b->[0] }
		729	@{$registry->[$event] || []}, $cb;
		730	}
		731
		732	# hack
		733	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		734
		735	# attach handles attaching event callbacks
		736	# the only thing the caller has to do is pass the correct
		737	# registry (== where the callback attaches to).
		738	sub _attach {
		739	my ($registry, $klass, @arg) = @_;
		740
		741	my $object_type;
		742	my $prio = 0;
		743	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		744
		745	#TODO: get rid of this hack
		746	if ($attachable_klass{$klass}) {
		747	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		748	}
		749
		750	while (@arg) {
		751	my $type = shift @arg;
		752
		753	if ($type eq "prio") {
		754	$prio = shift @arg;
		755
		756	} elsif ($type eq "type") {
		757	$object_type = shift @arg;
		758	$registry = $CB_TYPE[$object_type] ||= [];
		759
		760	} elsif ($type eq "subtype") {
		761	defined $object_type or Carp::croak "subtype specified without type";
		762	my $object_subtype = shift @arg;
		763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
		764
		765	} elsif ($type eq "package") {
		766	my $pkg = shift @arg;
		767
		768	while (my ($name, $id) = each %cb_id) {
		769	if (my $cb = $pkg->can ($name)) {
		770	_attach_cb $registry, $id, $prio, $cb;
		771	}
		772	}
		773
		774	} elsif (exists $cb_id{$type}) {
		775	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		776
		777	} elsif (ref $type) {
		778	warn "attaching objects not supported, ignoring.\n";
		779
		780	} else {
		781	shift @arg;
		782	warn "attach argument '$type' not supported, ignoring.\n";
		783	}
		784	}
		785	}
		786
		787	sub _object_attach {
		788	my ($obj, $name, %arg) = @_;
		789
		790	return if exists $obj->{_attachment}{$name};
		791
		792	if (my $attach = $attachment{$name}) {
		793	my $registry = $obj->registry;
		794
		795	for (@$attach) {
		796	my ($klass, @attach) = @$_;
		797	_attach $registry, $klass, @attach;
		798	}
		799
		800	$obj->{$name} = \%arg;
		801	} else {
		802	warn "object uses attachment '$name' which is not available, postponing.\n";
		803	}
		804
		805	$obj->{_attachment}{$name} = undef;
		806	}
		807
		808	sub cf::attachable::attach {
		809	if (ref $_[0]) {
		810	_object_attach @_;
		811	} else {
		812	_attach shift->_attach_registry, @_;
		813	}
		814	_recalc_want;
		815	};
		816
		817	# all those should be optimised
		818	sub cf::attachable::detach {
		819	my ($obj, $name) = @_;
		820
		821	if (ref $obj) {
		822	delete $obj->{_attachment}{$name};
		823	reattach ($obj);
		824	} else {
		825	Carp::croak "cannot, currently, detach class attachments";
		826	}
		827	_recalc_want;
		828	};
		829
		830	sub cf::attachable::attached {
		831	my ($obj, $name) = @_;
		832
		833	exists $obj->{_attachment}{$name}
		834	}
		835
		836	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		837	eval "#line " . __LINE__ . " 'cf.pm'
		838	sub cf::\L$klass\E::_attach_registry {
		839	(\\\@CB_$klass, KLASS_$klass)
		840	}
		841
		842	sub cf::\L$klass\E::attachment {
		843	my \$name = shift;
		844
		845	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		846	}
		847	";
		848	die if $@;
		849	}
		850
		851	our $override;
		852	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		853
		854	sub override {
		855	$override = 1;
		856	@invoke_results = ();
		857	}
		858
		859	sub do_invoke {
		860	my $event = shift;
		861	my $callbacks = shift;
		862
		863	@invoke_results = ();
		864
		865	local $override;
		866
		867	for (@$callbacks) {
		868	eval { &{$_->[1]} };
		869
		870	if ($@) {
		871	warn "$@";
		872	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		873	override;
		874	}
		875
		876	return 1 if $override;
		877	}
		878
		879	0
		880	}
		881
		882	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		883
		884	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		885
		886	Generate an object-specific event with the given arguments.
		887
		888	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		889	removed in future versions), and there is no public API to access override
		890	results (if you must, access C<@cf::invoke_results> directly).
		891
463	=back	892	=back
464		893
465	=cut	894	=cut
466
467	*cf::object::valid =
468	*cf::player::valid =
469	*cf::map::valid = \&cf::_valid;
470		895
471	#############################################################################	896	#############################################################################
472	# object support	897	# object support
473		898
474	sub instantiate {
475	my ($obj, $data) = @_;
476
477	$data = from_json $data;
478
479	for (@$data) {
480	my ($name, $args) = @$_;
481
482	$obj->attach ($name, %{$args || {} });
483	}
484	}
485
486	# basically do the same as instantiate, without calling instantiate
487	sub reattach {	899	sub reattach {
		900	# basically do the same as instantiate, without calling instantiate
488	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		904
489	my $registry = $obj->registry;	905	my $registry = $obj->registry;
490		906
491	@$registry = ();	907	@$registry = ();
492		908
493	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	909	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
494		910
495	for my $name (keys %{ $obj->{_attachment} || {} }) {	911	for my $name (keys %{ $obj->{_attachment} || {} }) {
496	if (my $attach = $attachment{$name}) {	912	if (my $attach = $attachment{$name}) {
497	for (@$attach) {	913	for (@$attach) {
498	my ($klass, @attach) = @$_;	914	my ($klass, @attach) = @$_;
499	_attach @$registry, $klass, @attach;	915	_attach $registry, $klass, @attach;
500	}	916	}
501	} else {	917	} else {
502	warn "object uses attachment '$name' that is not available, postponing.\n";	918	warn "object uses attachment '$name' that is not available, postponing.\n";
503	}	919	}
504	}	920	}
505	}	921	}
506		922
507	sub object_freezer_save {	923	cf::attachable->attach (
508	my ($filename, $rdata, $objs) = @_;
509
510	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;
513
514	if (open my $fh, ">:raw", "$filename~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
522	close $fh;
523	rename "$filename.pst~", "$filename.pst";
524	} else {
525	unlink "$filename.pst";
526	}
527
528	rename "$filename~", $filename;
529	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;
534	unlink "$filename.pst";
535	}
536	}
537
538	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;
540
541	use Data::Dumper;
542
543	$$rdata . Dumper $objs
544	}
545
546	sub object_thawer_load {
547	my ($filename) = @_;
548
549	local $/;
550
551	my $av;
552
553	#TODO: use sysread etc.
554	if (open my $data, "<:raw:perlio", $filename) {
555	$data = <$data>;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };
558	}
559	return ($data, $av);
560	}
561
562	()
563	}
564
565	attach_to_objects
566	prio => -1000000,	924	prio => -1000000,
		925	on_instantiate => sub {
		926	my ($obj, $data) = @_;
		927
		928	$data = from_json $data;
		929
		930	for (@$data) {
		931	my ($name, $args) = @$_;
		932
		933	$obj->attach ($name, %{$args || {} });
		934	}
		935	},
		936	on_reattach => \&reattach,
567	on_clone => sub {	937	on_clone => sub {
568	my ($src, $dst) = @_;	938	my ($src, $dst) = @_;
569		939
570	@{$dst->registry} = @{$src->registry};	940	@{$dst->registry} = @{$src->registry};
571		941
572	%$dst = %$src;	942	%$dst = %$src;
573		943
574	%{$dst->{_attachment}} = %{$src->{_attachment}}	944	%{$dst->{_attachment}} = %{$src->{_attachment}}
575	if exists $src->{_attachment};	945	if exists $src->{_attachment};
576	},	946	},
577	;	947	);
		948
		949	sub object_freezer_save {
		950	my ($filename, $rdata, $objs) = @_;
		951
		952	sync_job {
		953	if (length $$rdata) {
		954	warn sprintf "saving %s (%d,%d)\n",
		955	$filename, length $$rdata, scalar @$objs;
		956
		957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		958	chmod SAVE_MODE, $fh;
		959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		960	aio_fsync $fh if $cf::USE_FSYNC;
		961	close $fh;
		962
		963	if (@$objs) {
		964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		965	chmod SAVE_MODE, $fh;
		966	my $data = Storable::nfreeze { version => 1, objs => $objs };
		967	aio_write $fh, 0, (length $data), $data, 0;
		968	aio_fsync $fh if $cf::USE_FSYNC;
		969	close $fh;
		970	aio_rename "$filename.pst~", "$filename.pst";
		971	}
		972	} else {
		973	aio_unlink "$filename.pst";
		974	}
		975
		976	aio_rename "$filename~", $filename;
		977	} else {
		978	warn "FATAL: $filename~: $!\n";
		979	}
		980	} else {
		981	aio_unlink $filename;
		982	aio_unlink "$filename.pst";
		983	}
		984	}
		985	}
		986
		987	sub object_freezer_as_string {
		988	my ($rdata, $objs) = @_;
		989
		990	use Data::Dumper;
		991
		992	$$rdata . Dumper $objs
		993	}
		994
		995	sub object_thawer_load {
		996	my ($filename) = @_;
		997
		998	my ($data, $av);
		999
		1000	(aio_load $filename, $data) >= 0
		1001	or return;
		1002
		1003	unless (aio_stat "$filename.pst") {
		1004	(aio_load "$filename.pst", $av) >= 0
		1005	or return;
		1006	$av = eval { (Storable::thaw $av)->{objs} };
		1007	}
		1008
		1009	warn sprintf "loading %s (%d)\n",
		1010	$filename, length $data, scalar @{$av || []};
		1011	return ($data, $av);
		1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
578		1019
579	#############################################################################	1020	#############################################################################
580	# command handling &c	1021	# command handling &c
581		1022
582	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
595	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
596	}	1037	}
597		1038
598	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
599		1040
600	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
601		1046
602	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
603	called.	1048	called.
604		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
605	=cut	1061	=cut
606		1062
607	sub register_extcmd {	1063	sub register_extcmd {
608	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
609		1065
610	my $caller = caller;
611	#warn "registering extcmd '$name' to '$caller'";
612
613	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
614	}	1067	}
615		1068
616	attach_to_players	1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
		1073	}
		1074
		1075	cf::player->attach (
617	on_command => sub {	1076	on_command => sub {
618	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
619		1078
620	my $cb = $COMMAND{$name}	1079	my $cb = $COMMAND{$name}
621	or return;	1080	or return;
…		…
631		1090
632	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
633		1092
634	if (ref $msg) {	1093	if (ref $msg) {
635	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
636	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
637	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
638	}	1097	}
639	}	1098	}
640	} else {	1099	} else {
641	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
642	}	1101	}
643		1102
644	cf::override;	1103	cf::override;
645	},	1104	},
646	;	1105	);
		1106
		1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
		1466
		1467	=back
		1468
		1469	=head3 cf::map
		1470
		1471	=over 4
		1472
		1473	=cut
		1474
		1475	package cf::map;
		1476
		1477	use Fcntl;
		1478	use Coro::AIO;
		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
		1484	our $MAX_RESET = 3600;
		1485	our $DEFAULT_RESET = 3000;
		1486
		1487	sub generate_random_map {
		1488	my ($self, $rmp) = @_;
		1489	# mit "rum" bekleckern, nicht
		1490	$self->_create_random_map (
		1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1494	$rmp->{exit_on_final_map},
		1495	$rmp->{xsize}, $rmp->{ysize},
		1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
647		1512
648	sub register {	1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
649	my ($base, $pkg) = @_;	1527	my ($self, $merge) = @_;
650		1528
651	#TODO	1529	# we have to keep some variables in memory intact
652	}	1530	local $self->{path};
		1531	local $self->{load_path};
653		1532
654	sub load_extension {	1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
655	my ($path) = @_;	1537	my ($path, $base) = @_;
656		1538
657	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1539	$path = "$path"; # make sure its a string
658	my $base = $1;
659	my $pkg = $1;
660	$pkg =~ s/[^[:word:]]/_/g;
661	$pkg = "ext::$pkg";
662		1540
663	warn "loading '$path' into '$pkg'\n";	1541	$path =~ s/\.map$//;
664		1542
665	open my $fh, "<:utf8", $path	1543	# map plan:
666	or die "$path: $!";	1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
667		1551
668	my $source =	1552	$path =~ s/$PATH_SEP/\//go;
669	"package $pkg; use strict; use utf8;\n"
670	. "#line 1 \"$path\"\n{\n"
671	. (do { local $/; <$fh> })
672	. "\n};\n1";
673		1553
674	eval $source	1554	# treat it as relative path if it starts with
675	or die $@ ? "$path: $@\n"	1555	# something that looks reasonable
676	: "extension disabled.\n";	1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
677		1558
678	push @exts, $pkg;	1559	$base =~ s{[^/]+/?$}{};
679	$ext_pkg{$base} = $pkg;	1560	$path = "$base/$path";
680
681	# no strict 'refs';
682	# @{"$pkg\::ISA"} = ext::;
683
684	register $base, $pkg;
685	}
686
687	sub unload_extension {
688	my ($pkg) = @_;
689
690	warn "removing extension $pkg\n";
691
692	# remove hooks
693	#TODO
694	# for my $idx (0 .. $#PLUGIN_EVENT) {
695	# delete $hook[$idx]{$pkg};
696	# }	1561	}
697		1562
698	# remove commands	1563	for ($path) {
699	for my $name (keys %COMMAND) {	1564	redo if s{//}{/};
700	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
701		1568
702	if (@cb) {	1569	$path
703	$COMMAND{$name} = \@cb;	1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
		1630	}
		1631
		1632	# and all this just because we cannot iterate over
		1633	# all maps in C++...
		1634	sub change_all_map_light {
		1635	my ($change) = @_;
		1636
		1637	$_->change_map_light ($change)
		1638	for grep $_->outdoor, values %cf::MAP;
		1639	}
		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
		1657	sub load_header_from($) {
		1658	my ($self, $path) = @_;
		1659
		1660	utf8::encode $path;
		1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
		1665	or return;
		1666
		1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
704	} else {	1708	} else {
705	delete $COMMAND{$name};	1709	$self->load_header_orig
706	}	1710	or return;
		1711	$self->prepare_orig;
		1712	}
		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
		1719
707	}	1720	1
		1721	}
708		1722
709	# remove extcmds	1723	sub find;
710	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1724	sub find {
711	delete $EXTCMD{$name};	1725	my ($path, $origin) = @_;
		1726
		1727	$path = normalise $path, $origin && $origin->path;
		1728
		1729	cf::lock_wait "map_find:$path";
		1730
		1731	$cf::MAP{$path} || do {
		1732	my $guard = cf::lock_acquire "map_find:$path";
		1733	my $map = new_from_path cf::map $path
		1734	or return;
		1735
		1736	$map->{last_save} = $cf::RUNTIME;
		1737
		1738	$map->load_header
		1739	or return;
		1740
		1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
		1744	$map->reset;
		1745	undef $guard;
		1746	return find $path;
		1747	}
		1748
		1749	$cf::MAP{$path} = $map
		1750	}
		1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
		1755
		1756	sub load {
		1757	my ($self) = @_;
		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
		1761	my $path = $self->{path};
		1762
712	}	1763	{
		1764	my $guard = cf::lock_acquire "map_load:$path";
713		1765
714	if (my $cb = $pkg->can ("unload")) {	1766	return if $self->in_memory != cf::MAP_SWAPPED;
715	eval {	1767
716	$cb->($pkg);	1768	$self->in_memory (cf::MAP_LOADING);
		1769
		1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
717	1	1786	}
718	} or warn "$pkg unloaded, but with errors: $@";	1787	}
719	}
720		1788
721	Symbol::delete_package $pkg;	1789	Coro::cede;
722	}	1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
		1792	$self->difficulty ($self->estimate_difficulty)
		1793	unless $self->difficulty;
		1794	Coro::cede;
723		1795
724	sub load_extensions {	1796	unless ($self->{deny_activate}) {
725	for my $ext (<$LIBDIR/*.ext>) {	1797	$self->decay_objects;
726	next unless -r $ext;	1798	$self->fix_auto_apply;
727	eval {	1799	$self->update_buttons;
728	load_extension $ext;	1800	Coro::cede;
729	1	1801	$self->set_darkness_map;
730	} or warn "$ext not loaded: $@";	1802	Coro::cede;
731	}	1803	$self->activate;
732	}	1804	}
733		1805
734	#############################################################################	1806	$self->in_memory (cf::MAP_IN_MEMORY);
735	# load/save/clean perl data associated with a map	1807	}
736		1808
737	*cf::mapsupport::on_clean = sub {	1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
738	my ($map) = @_;	1826	my ($map) = @_;
739		1827
740	my $path = $map->tmpname;	1828	my @diag; # diagonal neighbours
741	defined $path or return;
742		1829
743	unlink "$path.pst";	1830	for (0 .. 3) {
744	};	1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
745		1836
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
747		1840
748	#############################################################################	1841	for (@diag) {
749	# load/save perl data associated with player->ob objects	1842	my $neigh = find @$_
750		1843	or next;
751	sub all_objects(@) {	1844	$neigh->load;
752	@_, map all_objects ($_->inv), @_	1845	}
753	}	1846	}
754		1847
755	# TODO: compatibility cruft, remove when no longer needed	1848	sub find_sync {
756	attach_to_players	1849	my ($path, $origin) = @_;
757	on_load => sub {
758	my ($pl, $path) = @_;
759		1850
760	for my $o (all_objects $pl->ob) {	1851	cf::sync_job { find $path, $origin }
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1852	}
762	$o->set_ob_key_value ("_perl_data");
763		1853
764	%$o = %{ Storable::thaw pack "H*", $value };	1854	sub do_load_sync {
		1855	my ($map) = @_;
		1856
		1857	cf::sync_job { $map->load };
		1858	}
		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
		1878	$map->load;
		1879
		1880	delete $MAP_PREFETCH{$path};
765	}	1881	}
766	}	1882	}
		1883	undef $MAP_PREFETCHER;
		1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
		1888	}
		1889
		1890	sub save {
		1891	my ($self) = @_;
		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
		1895	$self->{last_save} = $cf::RUNTIME;
		1896
		1897	return unless $self->dirty;
		1898
		1899	my $save = $self->save_path; utf8::encode $save;
		1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1901
		1902	$self->{load_path} = $save;
		1903
		1904	return if $self->{deny_save};
		1905
		1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
		1912	if ($uniq) {
		1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1915	} else {
		1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
767	},	1917	}
768	;	1918	}
769		1919
770	#############################################################################	1920	sub swap_out {
		1921	my ($self) = @_;
771		1922
772	=head2 CORE EXTENSIONS	1923	# save first because save cedes
		1924	$self->save;
773		1925
774	Functions and methods that extend core crossfire objects.	1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1927
		1928	return if $self->players;
		1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1930	return if $self->{deny_save};
		1931
		1932	$self->clear;
		1933	$self->in_memory (cf::MAP_SWAPPED);
		1934	}
		1935
		1936	sub reset_at {
		1937	my ($self) = @_;
		1938
		1939	# TODO: safety, remove and allow resettable per-player maps
		1940	return 1e99 if $self->{deny_reset};
		1941
		1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1944
		1945	$time + $to
		1946	}
		1947
		1948	sub should_reset {
		1949	my ($self) = @_;
		1950
		1951	$self->reset_at <= $cf::RUNTIME
		1952	}
		1953
		1954	sub reset {
		1955	my ($self) = @_;
		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
		1959	return if $self->players;
		1960
		1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
		1972
		1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
		1976
		1977	$_->clear_links_to ($self) for values %cf::MAP;
		1978
		1979	$self->unlink_save;
		1980	$self->destroy;
		1981	}
		1982
		1983	my $nuke_counter = "aaaa";
		1984
		1985	sub nuke {
		1986	my ($self) = @_;
		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
		1994	$self->{deny_save} = 1;
		1995	$self->reset_timeout (1);
		1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
		2000	$self->reset; # polite request, might not happen
		2001	}
		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
		2055	}
		2056
		2057	package cf;
		2058
		2059	=back
		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
775		2066
776	=over 4	2067	=over 4
777		2068
778	=item cf::player::exists $login	2069	=item $ob->inv_recursive
779		2070
780	Returns true when the given account exists.	2071	Returns the inventory of the object _and_ their inventories, recursively.
781		2072
782	=cut	2073	=cut
783		2074
784	sub cf::player::exists($) {	2075	sub inv_recursive_;
785	cf::player::find $_[0]	2076	sub inv_recursive_ {
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2077	map { $_, inv_recursive_ $_->inv } @_
787	}	2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
		2087
		2088	=head3 cf::object::player
		2089
		2090	=over 4
788		2091
789	=item $player_object->reply ($npc, $msg[, $flags])	2092	=item $player_object->reply ($npc, $msg[, $flags])
790		2093
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2094	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	2095	can be C<undef>. Does the right thing when the player is currently in a
…		…
794		2097
795	=cut	2098	=cut
796		2099
797	# rough implementation of a future "reply" method that works	2100	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	2101	# with dialog boxes.
		2102	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	2103	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	2104	my ($self, $npc, $msg, $flags) = @_;
801		2105
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		2107
804	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
805	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
806	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
807	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
809	}	2127	}
810	}
811
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}	2128	}
825		2129
826	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
827		2131
828	Returns wether the given player is authorized to access resource "access"	2132	Returns wether the given player is authorized to access resource "access"
…		…
837	(ref $cf::CFG{"may_$access"}	2141	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2142	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	2143	: $cf::CFG{"may_$access"})
840	}	2144	}
841		2145
842	=cut	2146	=item $player_object->enter_link
843		2147
844	#############################################################################	2148	Freezes the player and moves him/her to a special map (C<{link}>).
		2149
		2150	The player should be reasonably safe there for short amounts of time. You
		2151	I<MUST> call C<leave_link> as soon as possible, though.
		2152
		2153	Will never block.
		2154
		2155	=item $player_object->leave_link ($map, $x, $y)
		2156
		2157	Moves the player out of the special C<{link}> map onto the specified
		2158	map. If the map is not valid (or omitted), the player will be moved back
		2159	to the location he/she was before the call to C<enter_link>, or, if that
		2160	fails, to the emergency map position.
		2161
		2162	Might block.
		2163
		2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
		2175
		2176	sub cf::object::player::enter_link {
		2177	my ($self) = @_;
		2178
		2179	$self->deactivate_recursive;
		2180
		2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2182
		2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2184	if $self->map && $self->map->{path} ne "{link}";
		2185
		2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2187	}
		2188
		2189	sub cf::object::player::leave_link {
		2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
		2193
		2194	my $link_pos = delete $self->{_link_pos};
		2195
		2196	unless ($map) {
		2197	# restore original map position
		2198	($map, $x, $y) = @{ $link_pos || [] };
		2199	$map = cf::map::find $map;
		2200
		2201	unless ($map) {
		2202	($map, $x, $y) = @$EMERGENCY_POSITION;
		2203	$map = cf::map::find $map
		2204	or die "FATAL: cannot load emergency map\n";
		2205	}
		2206	}
		2207
		2208	($x, $y) = (-1, -1)
		2209	unless (defined $x) && (defined $y);
		2210
		2211	# use -1 or undef as default coordinates, not 0, 0
		2212	($x, $y) = ($map->enter_x, $map->enter_y)
		2213	if $x <=0 && $y <= 0;
		2214
		2215	$map->load;
		2216	$map->load_diag;
		2217
		2218	return unless $self->contr->active;
		2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2222	$self->enter_map ($map, $x, $y);
		2223	}
		2224
		2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
		2236	sub cf::object::player::goto {
		2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2241
		2242	$self->enter_link;
		2243
		2244	(async {
		2245	my $map = eval {
		2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
		2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
		2265	$self->leave_link ($map, $x, $y);
		2266	}
		2267	})->prio (1);
		2268	}
		2269
		2270	=item $player_object->enter_exit ($exit_object)
		2271
		2272	=cut
		2273
		2274	sub parse_random_map_params {
		2275	my ($spec) = @_;
		2276
		2277	my $rmp = { # defaults
		2278	xsize => (cf::rndm 15, 40),
		2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
		2282	};
		2283
		2284	for (split /\n/, $spec) {
		2285	my ($k, $v) = split /\s+/, $_, 2;
		2286
		2287	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2288	}
		2289
		2290	$rmp
		2291	}
		2292
		2293	sub prepare_random_map {
		2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2297
		2298	# all this does is basically replace the /! path by
		2299	# a new random map path (?random/...) with a seed
		2300	# that depends on the exit object
		2301
		2302	my $rmp = parse_random_map_params $exit->msg;
		2303
		2304	if ($exit->map) {
		2305	$rmp->{region} = $exit->region->name;
		2306	$rmp->{origin_map} = $exit->map->path;
		2307	$rmp->{origin_x} = $exit->x;
		2308	$rmp->{origin_y} = $exit->y;
		2309	}
		2310
		2311	$rmp->{random_seed} ||= $exit->random_seed;
		2312
		2313	my $data = cf::to_json $rmp;
		2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
		2316
		2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
		2321
		2322	$exit->slaying ("?random/$md5");
		2323	$exit->msg (undef);
		2324	}
		2325	}
		2326
		2327	sub cf::object::player::enter_exit {
		2328	my ($self, $exit) = @_;
		2329
		2330	return unless $self->type == cf::PLAYER;
		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
		2343	$self->enter_link;
		2344
		2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
		2347	unless (eval {
		2348	$self->goto ($slaying, $hp, $sp);
		2349
		2350	1;
		2351	}) {
		2352	$self->message ("Something went wrong deep within the crossfire server. "
		2353	. "I'll try to bring you back to the map you were before. "
		2354	. "Please report this to the dungeon master!",
		2355	cf::NDI_UNIQUE | cf::NDI_RED);
		2356
		2357	warn "ERROR in enter_exit: $@";
		2358	$self->leave_link;
		2359	}
		2360	})->prio (1);
		2361	}
		2362
		2363	=head3 cf::client
		2364
		2365	=over 4
		2366
		2367	=item $client->send_drawinfo ($text, $flags)
		2368
		2369	Sends a drawinfo packet to the client. Circumvents output buffering so
		2370	should not be used under normal circumstances.
		2371
		2372	=cut
		2373
		2374	sub cf::client::send_drawinfo {
		2375	my ($self, $text, $flags) = @_;
		2376
		2377	utf8::encode $text;
		2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2379	}
		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
		2431
		2432	=item $success = $client->query ($flags, "text", \&cb)
		2433
		2434	Queues a query to the client, calling the given callback with
		2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		2437
		2438	Queries can fail, so check the return code. Or don't, as queries will
		2439	become reliable at some point in the future.
		2440
		2441	=cut
		2442
		2443	sub cf::client::query {
		2444	my ($self, $flags, $text, $cb) = @_;
		2445
		2446	return unless $self->state == ST_PLAYING
		2447	|| $self->state == ST_SETUP
		2448	|| $self->state == ST_CUSTOM;
		2449
		2450	$self->state (ST_CUSTOM);
		2451
		2452	utf8::encode $text;
		2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		2454
		2455	$self->send_packet ($self->{query_queue}[0][0])
		2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
		2459	}
		2460
		2461	cf::client->attach (
		2462	on_reply => sub {
		2463	my ($ns, $msg) = @_;
		2464
		2465	# this weird shuffling is so that direct followup queries
		2466	# get handled first
		2467	my $queue = delete $ns->{query_queue}
		2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
		2469
		2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		2472
		2473	push @{ $ns->{query_queue} }, @$queue;
		2474
		2475	if (@{ $ns->{query_queue} } == @$queue) {
		2476	if (@$queue) {
		2477	$ns->send_packet ($ns->{query_queue}[0][0]);
		2478	} else {
		2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		2480	}
		2481	}
		2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
		2501	);
		2502
		2503	=item $client->async (\&cb)
		2504
		2505	Create a new coroutine, running the specified callback. The coroutine will
		2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2507	or loss of connection).
		2508
		2509	=cut
		2510
		2511	sub cf::client::async {
		2512	my ($self, $cb) = @_;
		2513
		2514	my $coro = &Coro::async ($cb);
		2515
		2516	$coro->on_destroy (sub {
		2517	delete $self->{_coro}{$coro+0};
		2518	});
		2519
		2520	$self->{_coro}{$coro+0} = $coro;
		2521
		2522	$coro
		2523	}
		2524
		2525	cf::client->attach (
		2526	on_destroy => sub {
		2527	my ($ns) = @_;
		2528
		2529	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2530	},
		2531	);
		2532
		2533	=back
		2534
845		2535
846	=head2 SAFE SCRIPTING	2536	=head2 SAFE SCRIPTING
847		2537
848	Functions that provide a safe environment to compile and execute	2538	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	2539	snippets of perl code without them endangering the safety of the server
…		…
862		2552
863	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
864		2554
865	=pod	2555	=pod
866		2556
867	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
868		2558
869	cf::object contr pay_amount pay_player	2559	cf::object contr pay_amount pay_player map
870	cf::object::player player	2560	cf::object::player player
871	cf::player peaceful	2561	cf::player peaceful
		2562	cf::map trigger
872		2563
873	=cut	2564	=cut
874		2565
875	for (	2566	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	2567	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	2568	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	2569	["cf::player" => qw(peaceful)],
		2570	["cf::map" => qw(trigger)],
879	) {	2571	) {
880	no strict 'refs';	2572	no strict 'refs';
881	my ($pkg, @funs) = @$_;	2573	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2574	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	2575	for @funs;
…		…
951	=back	2643	=back
952		2644
953	=cut	2645	=cut
954		2646
955	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
956		2649
957	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
958		2652
959	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
960	currently store anything that can be serialised using Storable, which
961	excludes objects.
962		2654
963	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
964	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
965		2658
966	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
967		2660
968	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
969		2663
970	Return a hashref for use by the extension C<$family>, which can be
971	modified. After modifications, you have to call C<cf::db_dirty> or
972	C<cf::db_sync>.
973
974	=item $value = cf::db_get $family => $key
975
976	Returns a single value from the database
977
978	=item cf::db_put $family => $hashref
979
980	Stores the given family hashref into the database. Updates are delayed, if
981	you want the data to be synced to disk immediately, use C<cf::db_sync>.
982
983	=item cf::db_put $family => $key => $value
984
985	Stores the given C<$value> in the family hash. Updates are delayed, if you
986	want the data to be synced to disk immediately, use C<cf::db_sync>.
987
988	=item cf::db_dirty
989
990	Marks the database as dirty, to be updated at a later time.
991
992	=item cf::db_sync
993
994	Immediately write the database to disk I<if it is dirty>.
995
996	=cut
997
998	our $DB;
999
1000	{
1001	my $path = cf::localdir . "/database.pst";
1002
1003	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1007		2666
1008	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1009		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1010	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1011	warn "saving database $path\n";#d# remove later	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1012	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1013	if (0 == ($pid = fork)) {	2672	Coro::cede;
1014	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;
1017	cf::_exit 0 if defined $pid;
1018	}
1019	}
1020
1021	my $dirty;
1022
1023	sub db_sync() {
1024	db_save if $dirty;
1025	undef $dirty;
1026	}
1027
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;
1030	});
1031
1032	sub db_dirty() {
1033	$dirty = 1;
1034	$idle->start;
1035	}
1036
1037	sub db_get($;$) {
1038	@_ >= 2
1039	? $DB->{$_[0]}{$_[1]}
1040	: ($DB->{$_[0]} ||= { })
1041	}
1042
1043	sub db_put($$;$) {
1044	if (@_ >= 3) {
1045	$DB->{$_[0]}{$_[1]} = $_[2];
1046	} else {
1047	$DB->{$_[0]} = $_[1];
1048	}
1049	db_dirty;
1050	}
1051
1052	attach_global
1053	prio => 10000,
1054	on_cleanup => sub {
1055	db_sync;
1056	},	2673	}
		2674
		2675	while (my ($face, $info) = each %$faces) {
		2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
1057	;	2686	}
1058	}
1059		2687
1060	#############################################################################	2688	{
1061	# the server's main()	2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
		2727	sub reload_resources {
		2728	warn "reloading resource files...\n";
		2729
		2730	reload_regions;
		2731	reload_facedata;
		2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
		2737	}
		2738
		2739	sub init {
		2740	reload_resources;
		2741	}
1062		2742
1063	sub cfg_load {	2743	sub cfg_load {
1064	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
1065	or return;	2745	or return;
1066		2746
1067	local $/;	2747	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
		2749
		2750	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2751
		2752	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2753	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2754
		2755	if (exists $CFG{mlockall}) {
		2756	eval {
		2757	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2758	and die "WARNING: m(un)lockall failed: $!\n";
		2759	};
		2760	warn $@ if $@;
		2761	}
1069	}	2762	}
1070		2763
1071	sub main {	2764	sub main {
		2765	# we must not ever block the main coroutine
		2766	local $Coro::idle = sub {
		2767	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2768	(async {
		2769	Event::one_event;
		2770	})->prio (Coro::PRIO_MAX);
		2771	};
		2772
1072	cfg_load;	2773	cfg_load;
1073	db_load;	2774	db_init;
1074	load_extensions;	2775	load_extensions;
		2776
		2777	$TICK_WATCHER->start;
1075	Event::loop;	2778	Event::loop;
1076	}	2779	}
1077		2780
1078	#############################################################################	2781	#############################################################################
1079	# initialisation	2782	# initialisation and cleanup
1080		2783
1081	sub _perl_reload(&) {	2784	# install some emergency cleanup handlers
		2785	BEGIN {
		2786	for my $signal (qw(INT HUP TERM)) {
		2787	Event->signal (
		2788	reentrant => 0,
		2789	data => WF_AUTOCANCEL,
		2790	signal => $signal,
		2791	prio => 0,
		2792	cb => sub {
		2793	cf::cleanup "SIG$signal";
		2794	},
		2795	);
		2796	}
		2797	}
		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
		2835	}
		2836
		2837	sub emergency_save() {
		2838	my $freeze_guard = cf::freeze_mainloop;
		2839
		2840	warn "enter emergency perl save\n";
		2841
		2842	cf::sync_job {
		2843	# use a peculiar iteration method to avoid tripping on perl
		2844	# refcount bugs in for. also avoids problems with players
		2845	# and maps saved/destroyed asynchronously.
		2846	warn "begin emergency player save\n";
		2847	for my $login (keys %cf::PLAYER) {
		2848	my $pl = $cf::PLAYER{$login} or next;
		2849	$pl->valid or next;
		2850	$pl->save;
		2851	}
		2852	warn "end emergency player save\n";
		2853
		2854	warn "begin emergency map save\n";
		2855	for my $path (keys %cf::MAP) {
		2856	my $map = $cf::MAP{$path} or next;
		2857	$map->valid or next;
		2858	$map->save;
		2859	}
		2860	warn "end emergency map save\n";
		2861
		2862	warn "begin emergency database checkpoint\n";
		2863	BDB::db_env_txn_checkpoint $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
		2865	};
		2866
		2867	warn "leave emergency perl save\n";
		2868	}
		2869
		2870	sub post_cleanup {
1082	my ($msg) = @_;	2871	my ($make_core) = @_;
1083		2872
1084	$msg->("reloading...");	2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
1085		2876
1086	eval {	2877	sub do_reload_perl() {
1087	# cancel all watchers	2878	# can/must only be called in main
		2879	if ($Coro::current != $Coro::main) {
		2880	warn "can only reload from main coroutine";
		2881	return;
		2882	}
		2883
		2884	warn "reloading...";
		2885
		2886	warn "entering sync_job";
		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
		2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
		2892
		2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
		2896	# if anything goes wrong in here, we should simply crash as we already saved
		2897
		2898	warn "cancelling all WF_AUTOCANCEL watchers";
1088	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
1089	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
1090	}	2901	}
1091		2902
1092	# unload all extensions	2903	warn "flushing outstanding aio requests";
1093	for (@exts) {	2904	for (;;) {
1094	$msg->("unloading <$_>");	2905	BDB::flush;
1095	unload_extension $_;	2906	IO::AIO::flush;
		2907	Coro::cede;
		2908	last unless IO::AIO::nreqs || BDB::nreqs;
		2909	warn "iterate...";
		2910	}
		2911
		2912	++$RELOAD;
		2913
		2914	warn "cancelling all extension coros";
		2915	$_->cancel for values %EXT_CORO;
		2916	%EXT_CORO = ();
		2917
		2918	warn "removing commands";
		2919	%COMMAND = ();
		2920
		2921	warn "removing ext/exti commands";
		2922	%EXTCMD = ();
		2923	%EXTICMD = ();
		2924
		2925	warn "unloading/nuking all extensions";
		2926	for my $pkg (@EXTS) {
		2927	warn "... unloading $pkg";
		2928
		2929	if (my $cb = $pkg->can ("unload")) {
		2930	eval {
		2931	$cb->($pkg);
		2932	1
		2933	} or warn "$pkg unloaded, but with errors: $@";
1096	}	2934	}
1097		2935
		2936	warn "... nuking $pkg";
		2937	Symbol::delete_package $pkg;
		2938	}
		2939
1098	# unload all modules loaded from $LIBDIR	2940	warn "unloading all perl modules loaded from $LIBDIR";
1099	while (my ($k, $v) = each %INC) {	2941	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2942	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		2943
1102	$msg->("removing <$k>");	2944	warn "... unloading $k";
1103	delete $INC{$k};	2945	delete $INC{$k};
1104		2946
1105	$k =~ s/\.pm$//;	2947	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	2948	$k =~ s/\//::/g;
1107		2949
…		…
1110	}	2952	}
1111		2953
1112	Symbol::delete_package $k;	2954	Symbol::delete_package $k;
1113	}	2955	}
1114		2956
1115	# sync database to disk
1116	cf::db_sync;
1117
1118	# get rid of safe::, as good as possible	2957	warn "getting rid of safe::, as good as possible";
1119	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		2960
1122	# remove register_script_function callbacks
1123	# TODO
1124
1125	# unload cf.pm "a bit"	2961	warn "unloading cf.pm \"a bit\"";
1126	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
1127		2964
1128	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
1129	# and global variables created in xs	2966	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
1131		2968
1132	# reload cf.pm	2969	warn "unload completed, starting to reload now";
		2970
1133	$msg->("reloading cf.pm");	2971	warn "reloading cf.pm";
1134	require cf;	2972	require cf;
		2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		2974
1136	# load config and database again	2975	warn "loading config and database again";
1137	cf::cfg_load;	2976	cf::cfg_load;
1138	cf::db_load;
1139		2977
1140	# load extensions	2978	warn "loading extensions";
1141	$msg->("load extensions");
1142	cf::load_extensions;	2979	cf::load_extensions;
1143		2980
1144	# reattach attachments to objects	2981	warn "reattaching attachments to objects/players";
1145	$msg->("reattach");	2982	_global_reattach; # objects, sockets
1146	_global_reattach;	2983	warn "reattaching attachments to maps";
		2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
		2987
		2988	warn "leaving sync_job";
		2989
		2990	1
		2991	} or do {
		2992	warn $@;
		2993	warn "error while reloading, exiting.";
		2994	exit 1;
1147	};	2995	};
1148	$msg->($@) if $@;
1149		2996
1150	$msg->("reloaded");	2997	warn "reloaded";
1151	};	2998	};
1152		2999
1153	sub perl_reload() {	3000	our $RELOAD_WATCHER; # used only during reload
1154	_perl_reload {	3001
1155	warn $_[0];	3002	sub reload_perl() {
1156	print "$_[0]\n";	3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
		3005
		3006	$RELOAD_WATCHER ||= Event->timer (
		3007	reentrant => 0,
		3008	after => 0,
		3009	data => WF_AUTOCANCEL,
		3010	cb => sub {
		3011	do_reload_perl;
		3012	undef $RELOAD_WATCHER;
		3013	},
1157	};	3014	);
1158	}	3015	}
1159		3016
1160	register "<global>", __PACKAGE__;
1161
1162	register_command "perl-reload" => sub {	3017	register_command "reload" => sub {
1163	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
1164		3019
1165	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
1166	_perl_reload {	3021	$who->message ("reloading server.");
1167	warn $_[0];	3022	async { reload_perl };
1168	$who->message ($_[0]);	3023	}
		3024	};
		3025
		3026	unshift @INC, $LIBDIR;
		3027
		3028	my $bug_warning = 0;
		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
		3053	$TICK_WATCHER = Event->timer (
		3054	reentrant => 0,
		3055	parked => 1,
		3056	prio => 0,
		3057	at => $NEXT_TICK || $TICK,
		3058	data => WF_AUTOCANCEL,
		3059	cb => sub {
		3060	if ($Coro::current != $Coro::main) {
		3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3062	unless ++$bug_warning > 10;
		3063	return;
		3064	}
		3065
		3066	$NOW = $tick_start = Event::time;
		3067
		3068	cf::server_tick; # one server iteration
		3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1169	};	3091	};
1170	}
1171	};
1172		3092
1173	unshift @INC, $LIBDIR;	3093	$RUNTIME += $TICK;
1174
1175	$TICK_WATCHER = Event->timer (
1176	prio => 1,
1177	async => 1,
1178	at => $NEXT_TICK || 1,
1179	data => WF_AUTOCANCEL,
1180	cb => sub {
1181	cf::server_tick; # one server iteration
1182
1183	my $NOW = Event::time;
1184	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
		3095
		3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3098	Coro::async_pool {
		3099	write_runtime
		3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
		3102	}
		3103
		3104	# my $AFTER = Event::time;
		3105	# warn $AFTER - $NOW;#d#
		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
1185		3115
1186	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
1187	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1188		3118
1189	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
1190	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
1191	},	3128	},
1192	);	3129	);
1193		3130
		3131	{
		3132	BDB::max_poll_time $TICK * 0.1;
		3133	$BDB_POLL_WATCHER = Event->io (
		3134	reentrant => 0,
		3135	fd => BDB::poll_fileno,
		3136	poll => 'r',
		3137	prio => 0,
		3138	data => WF_AUTOCANCEL,
		3139	cb => \&BDB::poll_cb,
		3140	);
		3141	BDB::min_parallel 8;
		3142
		3143	BDB::set_sync_prepare {
		3144	my $status;
		3145	my $current = $Coro::current;
		3146	(
		3147	sub {
		3148	$status = $!;
		3149	$current->ready; undef $current;
		3150	},
		3151	sub {
		3152	Coro::schedule while defined $current;
		3153	$! = $status;
		3154	},
		3155	)
		3156	};
		3157
		3158	unless ($DB_ENV) {
		3159	$DB_ENV = BDB::db_env_create;
		3160
		3161	cf::sync_job {
		3162	eval {
		3163	BDB::db_env_open
		3164	$DB_ENV,
		3165	$BDBDIR,
		3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3168	0666;
		3169
		3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3171
		3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
		3177	};
		3178	}
		3179	}
		3180
		3181	{
		3182	IO::AIO::min_parallel 8;
		3183
		3184	undef $Coro::AIO::WATCHER;
1194	IO::AIO::max_poll_time $TICK * 0.2;	3185	IO::AIO::max_poll_time $TICK * 0.1;
1195		3186	$AIO_POLL_WATCHER = Event->io (
1196	Event->io (fd => IO::AIO::poll_fileno,	3187	reentrant => 0,
1197	poll => 'r',
1198	prio => 5,
1199	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
		3189	fd => IO::AIO::poll_fileno,
		3190	poll => 'r',
		3191	prio => 6,
1200	cb => \&IO::AIO::poll_cb);	3192	cb => \&IO::AIO::poll_cb,
		3193	);
		3194	}
		3195
		3196	my $_log_backtrace;
		3197
		3198	sub _log_backtrace {
		3199	my ($msg, @addr) = @_;
		3200
		3201	$msg =~ s/\n//;
		3202
		3203	# limit the # of concurrent backtraces
		3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
		3231	}
		3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
		3236
		3237	END { cf::emergency_save }
1201		3238
1202	1	3239	1
1203		3240

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