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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
18		24
19	use IO::AIO 2.3;	25	use BDB ();
		26	use Data::Dumper;
		27	use Digest::MD5;
		28	use Fcntl;
20	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
21	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
22		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
24		41
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
27		44
28	$Coro::main->prio (Coro::PRIO_MIN);	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		46
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		48
32	our %COMMAND = ();	49	our %COMMAND = ();
33	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
35		56
		57	our $RELOAD; # number of reloads so far
36	our @EVENT;	58	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		59
39	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	76	our $NEXT_TICK;
		77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
42		82
43	our %CFG;	83	our %CFG;
44		84
45	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
		86	our $RUNTIME;
		87
		88	our %PLAYER; # all users
		89	our %MAP; # all maps
		90	our $LINK_MAP; # the special {link} map, which is always available
		91
		92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
		99	binmode STDOUT;
		100	binmode STDERR;
		101
		102	# read virtual server time, if available
		103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		104	open my $fh, "<", "$LOCALDIR/runtime"
		105	or die "unable to read runtime file: $!";
		106	$RUNTIME = <$fh> + 0.;
		107	}
		108
		109	mkdir $_
		110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		111
		112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
46		115
47	#############################################################################	116	#############################################################################
48		117
49	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
50		119
…		…
52		121
53	=item $cf::UPTIME	122	=item $cf::UPTIME
54		123
55	The timestamp of the server start (so not actually an uptime).	124	The timestamp of the server start (so not actually an uptime).
56		125
57	=item $cf::LIBDIR	126	=item $cf::RUNTIME
58		127
59	The perl library directory, where extensions and cf-specific modules can	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	129	every server tick.
		130
		131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		134
		135	Various directories - "/etc", read-only install directory, perl-library
		136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
		139
		140	=item $cf::NOW
		141
		142	The time of the last (current) server tick.
61		143
62	=item $cf::TICK	144	=item $cf::TICK
63		145
64	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
65		157
66	=item %cf::CFG	158	=item %cf::CFG
67		159
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
70		168
71	=back	169	=back
72		170
73	=cut	171	=cut
74		172
75	BEGIN {	173	BEGIN {
76	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	175	my $msg = join "", @_;
		176
78	$msg .= "\n"	177	$msg .= "\n"
79	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
80		179
81	print STDERR "cfperl: $msg";	180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
82	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
83	};	184	};
84	}	185	}
85		186
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		194
93	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	196	# within the Safe compartment.
95	for my $pkg (qw(	197	for my $pkg (qw(
96	cf::global cf::attachable	198	cf::global cf::attachable
…		…
105		207
106	$Event::DIED = sub {	208	$Event::DIED = sub {
107	warn "error in event callback: @_";	209	warn "error in event callback: @_";
108	};	210	};
109		211
110	my %ext_pkg;	212	#############################################################################
111	my @exts;
112	my @hook;
113		213
114	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
115		215
116	=over 4	216	=over 4
117		217
118	=cut	218	=item dumpval $ref
119		219
		220	=cut
		221
		222	sub dumpval {
		223	eval {
		224	local $SIG{__DIE__};
		225	my $d;
		226	if (1) {
		227	$d = new Data::Dumper([$_[0]], ["*var"]);
		228	$d->Terse(1);
		229	$d->Indent(2);
		230	$d->Quotekeys(0);
		231	$d->Useqq(1);
		232	#$d->Bless(...);
		233	$d->Seen($_[1]) if @_ > 1;
		234	$d = $d->Dump();
		235	}
		236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		237	$d
		238	} || "[unable to dump $_[0]: '$@']";
		239	}
		240
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
121		242
122	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
123		244
124	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
125		246
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
134		248
135	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
136		250
137	=cut	251	=item cf::lock_wait $string
138		252
139	sub to_json($) {	253	Wait until the given lock is available. See cf::lock_acquire.
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
141	JSON::Syck::Dump $_[0]	255	=item my $lock = cf::lock_acquire $string
		256
		257	Wait until the given lock is available and then acquires it and returns
		258	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		259	for example when the coroutine gets canceled), the lock is automatically
		260	returned.
		261
		262	Lock names should begin with a unique identifier (for example, cf::map::find
		263	uses map_find and cf::map::load uses map_load).
		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
		269	=cut
		270
		271	our %LOCK;
		272
		273	sub lock_wait($) {
		274	my ($key) = @_;
		275
		276	# wait for lock, if any
		277	while ($LOCK{$key}) {
		278	push @{ $LOCK{$key} }, $Coro::current;
		279	Coro::schedule;
		280	}
		281	}
		282
		283	sub lock_acquire($) {
		284	my ($key) = @_;
		285
		286	# wait, to be sure we are not locked
		287	lock_wait $key;
		288
		289	$LOCK{$key} = [];
		290
		291	Coro::guard {
		292	# wake up all waiters, to be on the safe side
		293	$_->ready for @{ delete $LOCK{$key} };
		294	}
		295	}
		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
		303	sub freeze_mainloop {
		304	return unless $TICK_WATCHER->is_active;
		305
		306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
		309	$TICK_WATCHER->stop;
		310	$guard
		311	}
		312
		313	=item cf::async { BLOCK }
		314
		315	Currently the same as Coro::async_pool, meaning you cannot use
		316	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		317	thing you are allowed to do is call C<prio> on it.
		318
		319	=cut
		320
		321	BEGIN { *async = \&Coro::async_pool }
		322
		323	=item cf::sync_job { BLOCK }
		324
		325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		326	is always able to handle events or runnable, as Crossfire TRT is only
		327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
		329
		330	If it must be done, put the blocking parts into C<sync_job>. This will run
		331	the given BLOCK in another coroutine while waiting for the result. The
		332	server will be frozen during this time, so the block should either finish
		333	fast or be very important.
		334
		335	=cut
		336
		337	sub sync_job(&) {
		338	my ($job) = @_;
		339
		340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
		343	# this is the main coro, too bad, we have to block
		344	# till the operation succeeds, freezing the server :/
		345
		346	# TODO: use suspend/resume instead
		347	# (but this is cancel-safe)
		348	my $freeze_guard = freeze_mainloop;
		349
		350	my $busy = 1;
		351	my @res;
		352
		353	(async {
		354	@res = eval { $job->() };
		355	warn $@ if $@;
		356	undef $busy;
		357	})->prio (Coro::PRIO_MAX);
		358
		359	while ($busy) {
		360	Coro::cede or Event::one_event;
		361	}
		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
		370	wantarray ? @res : $res[0]
		371	} else {
		372	# we are in another coroutine, how wonderful, everything just works
		373
		374	$job->()
		375	}
		376	}
		377
		378	=item $coro = cf::async_ext { BLOCK }
		379
		380	Like async, but this coro is automatically being canceled when the
		381	extension calling this is being unloaded.
		382
		383	=cut
		384
		385	sub async_ext(&) {
		386	my $cb = shift;
		387
		388	my $coro = &Coro::async ($cb);
		389
		390	$coro->on_destroy (sub {
		391	delete $EXT_CORO{$coro+0};
		392	});
		393	$EXT_CORO{$coro+0} = $coro;
		394
		395	$coro
		396	}
		397
		398	=item fork_call { }, $args
		399
		400	Executes the given code block with the given arguments in a seperate
		401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
		404
		405	=cut
		406
		407	sub fork_call(&@) {
		408	my ($cb, @args) = @_;
		409
		410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
		414
		415	if (my $pid = fork) {
		416	close $fh2;
		417
		418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		419	$res = Coro::Storable::thaw $res;
		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
		439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	567	}
143		568
144	=back	569	=back
145		570
146	=cut	571	=cut
…		…
153	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
155		580
156	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
157	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	583	Crossfire TRT).
159		584
160	=over 4	585	=over 4
161		586
162	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
163		588
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	703	our @CB_MAP = ();
279		704
280	my %attachment;	705	my %attachment;
281		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
282	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
284		715
285	use sort 'stable';	716	use sort 'stable';
286		717
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
321		752
322	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		757
327	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	759	my $pkg = shift @arg;
329		760
330	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
360	}	791	}
361		792
362	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
363	} else {	794	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	796	}
366		797
367	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
368	}	799	}
369		800
…		…
371	if (ref $_[0]) {	802	if (ref $_[0]) {
372	_object_attach @_;	803	_object_attach @_;
373	} else {	804	} else {
374	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
375	}	806	}
		807	_recalc_want;
376	};	808	};
377		809
378	# all those should be optimised	810	# all those should be optimised
379	sub cf::attachable::detach {	811	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
384	reattach ($obj);	816	reattach ($obj);
385	} else {	817	} else {
386	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
387	}	819	}
		820	_recalc_want;
388	};	821	};
389		822
390	sub cf::attachable::attached {	823	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
392		825
…		…
454	=cut	887	=cut
455		888
456	#############################################################################	889	#############################################################################
457	# object support	890	# object support
458		891
		892	sub reattach {
		893	# basically do the same as instantiate, without calling instantiate
		894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		897
		898	my $registry = $obj->registry;
		899
		900	@$registry = ();
		901
		902	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		903
		904	for my $name (keys %{ $obj->{_attachment} || {} }) {
		905	if (my $attach = $attachment{$name}) {
		906	for (@$attach) {
		907	my ($klass, @attach) = @$_;
		908	_attach $registry, $klass, @attach;
		909	}
		910	} else {
		911	warn "object uses attachment '$name' that is not available, postponing.\n";
		912	}
		913	}
		914	}
		915
459	cf::attachable->attach (	916	cf::attachable->attach (
460	prio => -1000000,	917	prio => -1000000,
461	on_instantiate => sub {	918	on_instantiate => sub {
462	my ($obj, $data) = @_;	919	my ($obj, $data) = @_;
463		920
…		…
467	my ($name, $args) = @$_;	924	my ($name, $args) = @$_;
468		925
469	$obj->attach ($name, %{$args || {} });	926	$obj->attach ($name, %{$args || {} });
470	}	927	}
471	},	928	},
472	on_reattach => sub {	929	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	930	on_clone => sub {
493	my ($src, $dst) = @_;	931	my ($src, $dst) = @_;
494		932
495	@{$dst->registry} = @{$src->registry};	933	@{$dst->registry} = @{$src->registry};
496		934
…		…
502	);	940	);
503		941
504	sub object_freezer_save {	942	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	943	my ($filename, $rdata, $objs) = @_;
506		944
		945	sync_job {
507	if (length $$rdata) {	946	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	947	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
510		949
511	if (open my $fh, ">:raw", "$filename~") {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		953	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	954	close $fh;
		955
		956	if (@$objs) {
		957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		958	chmod SAVE_MODE, $fh;
		959	my $data = Storable::nfreeze { version => 1, objs => $objs };
		960	aio_write $fh, 0, (length $data), $data, 0;
		961	aio_fsync $fh if $cf::USE_FSYNC;
		962	close $fh;
520	rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
		964	}
		965	} else {
		966	aio_unlink "$filename.pst";
		967	}
		968
		969	aio_rename "$filename~", $filename;
521	} else {	970	} else {
522	unlink "$filename.pst";	971	warn "FATAL: $filename~: $!\n";
523	}	972	}
524
525	rename "$filename~", $filename;
526	} else {	973	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	974	aio_unlink $filename;
531	unlink "$filename.pst";	975	aio_unlink "$filename.pst";
		976	}
532	}	977	}
533	}	978	}
534		979
535	sub object_freezer_as_string {	980	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	981	my ($rdata, $objs) = @_;
…		…
541	}	986	}
542		987
543	sub object_thawer_load {	988	sub object_thawer_load {
544	my ($filename) = @_;	989	my ($filename) = @_;
545		990
546	local $/;	991	my ($data, $av);
547		992
548	my $av;	993	(aio_load $filename, $data) >= 0
		994	or return;
549		995
550	#TODO: use sysread etc.	996	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	997	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	998	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
555	}	1000	}
		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
556	return ($data, $av);	1004	return ($data, $av);
557	}
558
559	()
560	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
561		1012
562	#############################################################################	1013	#############################################################################
563	# command handling &c	1014	# command handling &c
564		1015
565	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1030	}
580		1031
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1033
583	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
584		1035
585	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
586	called.	1037	called.
587		1038
588	=cut	1039	=cut
589		1040
590	sub register_extcmd {	1041	sub register_extcmd {
591	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
592		1043
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
597	}	1045	}
598		1046
599	cf::player->attach (	1047	cf::player->attach (
600	on_command => sub {	1048	on_command => sub {
601	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
614		1062
615	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
616		1064
617	if (ref $msg) {	1065	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	1069	}
622	}	1070	}
623	} else {	1071	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		1074
627	cf::override;	1075	cf::override;
628	},	1076	},
629	);	1077	);
630		1078
		1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
		1083	for my $path (<$LIBDIR/*.ext>) {
		1084	next unless -r $path;
		1085
		1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
		1143	}
		1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
		1149	};
		1150	}
		1151
		1152	#############################################################################
		1153
		1154	=back
		1155
		1156	=head2 CORE EXTENSIONS
		1157
		1158	Functions and methods that extend core crossfire objects.
		1159
		1160	=cut
		1161
		1162	package cf::player;
		1163
		1164	use Coro::AIO;
		1165
		1166	=head3 cf::player
		1167
		1168	=over 4
		1169
		1170	=item cf::player::find $login
		1171
		1172	Returns the given player object, loading it if necessary (might block).
		1173
		1174	=cut
		1175
		1176	sub playerdir($) {
		1177	"$PLAYERDIR/"
		1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1179	}
		1180
		1181	sub path($) {
		1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1183
		1184	(playerdir $login) . "/playerdata"
		1185	}
		1186
		1187	sub find_active($) {
		1188	$cf::PLAYER{$_[0]}
		1189	and $cf::PLAYER{$_[0]}->active
		1190	and $cf::PLAYER{$_[0]}
		1191	}
		1192
		1193	sub exists($) {
		1194	my ($login) = @_;
		1195
		1196	$cf::PLAYER{$login}
		1197	or cf::sync_job { !aio_stat path $login }
		1198	}
		1199
		1200	sub find($) {
		1201	return $cf::PLAYER{$_[0]} || do {
		1202	my $login = $_[0];
		1203
		1204	my $guard = cf::lock_acquire "user_find:$login";
		1205
		1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
		1214	my $pl = load_pl path $login
		1215	or return;
		1216	$cf::PLAYER{$login} = $pl
		1217	}
		1218	}
		1219	}
		1220
		1221	sub save($) {
		1222	my ($pl) = @_;
		1223
		1224	return if $pl->{deny_save};
		1225
		1226	my $path = path $pl;
		1227	my $guard = cf::lock_acquire "user_save:$path";
		1228
		1229	return if $pl->{deny_save};
		1230
		1231	aio_mkdir playerdir $pl, 0770;
		1232	$pl->{last_save} = $cf::RUNTIME;
		1233
		1234	$pl->save_pl ($path);
		1235	Coro::cede;
		1236	}
		1237
		1238	sub new($) {
		1239	my ($login) = @_;
		1240
		1241	my $self = create;
		1242
		1243	$self->ob->name ($login);
		1244	$self->{deny_save} = 1;
		1245
		1246	$cf::PLAYER{$login} = $self;
		1247
		1248	$self
		1249	}
		1250
		1251	=item $pl->quit_character
		1252
		1253	Nukes the player without looking back. If logged in, the connection will
		1254	be destroyed. May block for a long time.
		1255
		1256	=cut
		1257
		1258	sub quit_character {
		1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
		1262
		1263	$pl->{deny_save} = 1;
		1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1265
		1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1267	$pl->deactivate;
		1268	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1269	$pl->ns->destroy if $pl->ns;
		1270
		1271	my $path = playerdir $pl;
		1272	my $temp = "$path~$cf::RUNTIME~deleting~";
		1273	aio_rename $path, $temp;
		1274	delete $cf::PLAYER{$pl->ob->name};
		1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
		1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
		1297	}
		1298
		1299	=item cf::player::list_logins
		1300
		1301	Returns am arrayref of all valid playernames in the system, can take a
		1302	while and may block, so not sync_job-capable, ever.
		1303
		1304	=cut
		1305
		1306	sub list_logins {
		1307	my $dirs = aio_readdir $PLAYERDIR
		1308	or return [];
		1309
		1310	my @logins;
		1311
		1312	for my $login (@$dirs) {
		1313	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1314	aio_read $fh, 0, 512, my $buf, 0 or next;
		1315	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1316
		1317	utf8::decode $login;
		1318	push @logins, $login;
		1319	}
		1320
		1321	\@logins
		1322	}
		1323
		1324	=item $player->maps
		1325
		1326	Returns an arrayref of map paths that are private for this
		1327	player. May block.
		1328
		1329	=cut
		1330
		1331	sub maps($) {
		1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
		1336	my $files = aio_readdir playerdir $pl
		1337	or return;
		1338
		1339	my @paths;
		1340
		1341	for (@$files) {
		1342	utf8::decode $_;
		1343	next if /\.(?:pl|pst)$/;
		1344	next unless /^$PATH_SEP/o;
		1345
		1346	push @paths, cf::map::normalise "~$pl/$_";
		1347	}
		1348
		1349	\@paths
		1350	}
		1351
		1352	=item $player->ext_reply ($msgid, %msg)
		1353
		1354	Sends an ext reply to the player.
		1355
		1356	=cut
		1357
		1358	sub ext_reply($$%) {
		1359	my ($self, $id, %msg) = @_;
		1360
		1361	$msg{msgid} = $id;
		1362
		1363	$self->send ("ext " . cf::to_json \%msg);
		1364	}
		1365
		1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
		1406
		1407	=back
		1408
		1409	=head3 cf::map
		1410
		1411	=over 4
		1412
		1413	=cut
		1414
		1415	package cf::map;
		1416
		1417	use Fcntl;
		1418	use Coro::AIO;
		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
		1424	our $MAX_RESET = 3600;
		1425	our $DEFAULT_RESET = 3000;
		1426
		1427	sub generate_random_map {
		1428	my ($self, $rmp) = @_;
		1429	# mit "rum" bekleckern, nicht
		1430	$self->_create_random_map (
		1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1434	$rmp->{exit_on_final_map},
		1435	$rmp->{xsize}, $rmp->{ysize},
		1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1439	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1441	(cf::region::find $rmp->{region}), $rmp->{custom}
		1442	)
		1443	}
		1444
		1445	=item cf::map->register ($regex, $prio)
		1446
		1447	Register a handler for the map path matching the given regex at the
		1448	givne priority (higher is better, built-in handlers have priority 0, the
		1449	default).
		1450
		1451	=cut
		1452
631	sub register {	1453	sub register {
		1454	my (undef, $regex, $prio) = @_;
		1455	my $pkg = caller;
		1456
		1457	no strict;
		1458	push @{"$pkg\::ISA"}, __PACKAGE__;
		1459
		1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1461	}
		1462
		1463	# also paths starting with '/'
		1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1465
		1466	sub thawer_merge {
632	my ($base, $pkg) = @_;	1467	my ($self, $merge) = @_;
633		1468
634	#TODO	1469	# we have to keep some variables in memory intact
635	}	1470	local $self->{path};
		1471	local $self->{load_path};
636		1472
637	sub load_extension {	1473	$self->SUPER::thawer_merge ($merge);
		1474	}
		1475
		1476	sub normalise {
638	my ($path) = @_;	1477	my ($path, $base) = @_;
639		1478
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1479	$path = "$path"; # make sure its a string
641	my $base = $1;
642	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645		1480
646	warn "loading '$path' into '$pkg'\n";	1481	$path =~ s/\.map$//;
647		1482
648	open my $fh, "<:utf8", $path	1483	# map plan:
649	or die "$path: $!";	1484	#
		1485	# /! non-realised random map exit (special hack!)
		1486	# {... are special paths that are not being touched
		1487	# ?xxx/... are special absolute paths
		1488	# ?random/... random maps
		1489	# /... normal maps
		1490	# ~user/... per-player map of a specific user
650		1491
651	my $source =	1492	$path =~ s/$PATH_SEP/\//go;
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656		1493
657	eval $source	1494	# treat it as relative path if it starts with
658	or die $@ ? "$path: $@\n"	1495	# something that looks reasonable
659	: "extension disabled.\n";	1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
660		1498
661	push @exts, $pkg;	1499	$base =~ s{[^/]+/?$}{};
662	$ext_pkg{$base} = $pkg;	1500	$path = "$base/$path";
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	1501	}
680		1502
681	# remove commands	1503	for ($path) {
682	for my $name (keys %COMMAND) {	1504	redo if s{//}{/};
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
684		1508
685	if (@cb) {	1509	$path
686	$COMMAND{$name} = \@cb;	1510	}
		1511
		1512	sub new_from_path {
		1513	my (undef, $path, $base) = @_;
		1514
		1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1516
		1517	$path = normalise $path, $base;
		1518
		1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1521	my $self = bless cf::map::new, $pkg;
		1522	$self->{path} = $path; $self->path ($path);
		1523	$self->init; # pass $1 etc.
		1524	return $self;
		1525	}
		1526	}
		1527
		1528	Carp::carp "unable to resolve path '$path' (base '$base').";
		1529	()
		1530	}
		1531
		1532	sub init {
		1533	my ($self) = @_;
		1534
		1535	$self
		1536	}
		1537
		1538	sub as_string {
		1539	my ($self) = @_;
		1540
		1541	"$self->{path}"
		1542	}
		1543
		1544	# the displayed name, this is a one way mapping
		1545	sub visible_name {
		1546	&as_string
		1547	}
		1548
		1549	# the original (read-only) location
		1550	sub load_path {
		1551	my ($self) = @_;
		1552
		1553	"$MAPDIR/$self->{path}.map"
		1554	}
		1555
		1556	# the temporary/swap location
		1557	sub save_path {
		1558	my ($self) = @_;
		1559
		1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1561	"$TMPDIR/$path.map"
		1562	}
		1563
		1564	# the unique path, undef == no special unique path
		1565	sub uniq_path {
		1566	my ($self) = @_;
		1567
		1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1569	"$UNIQUEDIR/$path"
		1570	}
		1571
		1572	# and all this just because we cannot iterate over
		1573	# all maps in C++...
		1574	sub change_all_map_light {
		1575	my ($change) = @_;
		1576
		1577	$_->change_map_light ($change)
		1578	for grep $_->outdoor, values %cf::MAP;
		1579	}
		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
		1589	sub unlink_save {
		1590	my ($self) = @_;
		1591
		1592	utf8::encode (my $save = $self->save_path);
		1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1595	}
		1596
		1597	sub load_header_from($) {
		1598	my ($self, $path) = @_;
		1599
		1600	utf8::encode $path;
		1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
		1605	or return;
		1606
		1607	$self->{load_path} = $path;
		1608
		1609	1
		1610	}
		1611
		1612	sub load_header_orig {
		1613	my ($self) = @_;
		1614
		1615	$self->load_header_from ($self->load_path)
		1616	}
		1617
		1618	sub load_header_temp {
		1619	my ($self) = @_;
		1620
		1621	$self->load_header_from ($self->save_path)
		1622	}
		1623
		1624	sub prepare_temp {
		1625	my ($self) = @_;
		1626
		1627	$self->last_access ((delete $self->{last_access})
		1628	|| $cf::RUNTIME); #d#
		1629	# safety
		1630	$self->{instantiate_time} = $cf::RUNTIME
		1631	if $self->{instantiate_time} > $cf::RUNTIME;
		1632	}
		1633
		1634	sub prepare_orig {
		1635	my ($self) = @_;
		1636
		1637	$self->{load_original} = 1;
		1638	$self->{instantiate_time} = $cf::RUNTIME;
		1639	$self->last_access ($cf::RUNTIME);
		1640	$self->instantiate;
		1641	}
		1642
		1643	sub load_header {
		1644	my ($self) = @_;
		1645
		1646	if ($self->load_header_temp) {
		1647	$self->prepare_temp;
687	} else {	1648	} else {
688	delete $COMMAND{$name};	1649	$self->load_header_orig
689	}	1650	or return;
		1651	$self->prepare_orig;
		1652	}
		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
		1659
690	}	1660	1
		1661	}
691		1662
692	# remove extcmds	1663	sub find;
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1664	sub find {
694	delete $EXTCMD{$name};	1665	my ($path, $origin) = @_;
		1666
		1667	$path = normalise $path, $origin && $origin->path;
		1668
		1669	cf::lock_wait "map_find:$path";
		1670
		1671	$cf::MAP{$path} || do {
		1672	my $guard = cf::lock_acquire "map_find:$path";
		1673	my $map = new_from_path cf::map $path
		1674	or return;
		1675
		1676	$map->{last_save} = $cf::RUNTIME;
		1677
		1678	$map->load_header
		1679	or return;
		1680
		1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1682	# doing this can freeze the server in a sync job, obviously
		1683	#$cf::WAIT_FOR_TICK->wait;
		1684	$map->reset;
		1685	undef $guard;
		1686	return find $path;
		1687	}
		1688
		1689	$cf::MAP{$path} = $map
		1690	}
		1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
		1695
		1696	sub load {
		1697	my ($self) = @_;
		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
		1701	my $path = $self->{path};
		1702
695	}	1703	{
		1704	my $guard = cf::lock_acquire "map_load:$path";
696		1705
697	if (my $cb = $pkg->can ("unload")) {	1706	return if $self->in_memory != cf::MAP_SWAPPED;
698	eval {	1707
699	$cb->($pkg);	1708	$self->in_memory (cf::MAP_LOADING);
		1709
		1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
700	1	1726	}
701	} or warn "$pkg unloaded, but with errors: $@";	1727	}
702	}
703		1728
704	Symbol::delete_package $pkg;	1729	Coro::cede;
705	}	1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
		1732	$self->difficulty ($self->estimate_difficulty)
		1733	unless $self->difficulty;
		1734	Coro::cede;
706		1735
707	sub load_extensions {	1736	unless ($self->{deny_activate}) {
708	for my $ext (<$LIBDIR/*.ext>) {	1737	$self->decay_objects;
709	next unless -r $ext;	1738	$self->fix_auto_apply;
710	eval {	1739	$self->update_buttons;
711	load_extension $ext;	1740	Coro::cede;
712	1	1741	$self->set_darkness_map;
713	} or warn "$ext not loaded: $@";	1742	Coro::cede;
714	}	1743	$self->activate;
715	}	1744	}
716		1745
717	#############################################################################	1746	$self->in_memory (cf::MAP_IN_MEMORY);
718	# load/save/clean perl data associated with a map	1747	}
719		1748
720	*cf::mapsupport::on_clean = sub {	1749	$self->post_load;
		1750	}
		1751
		1752	sub customise_for {
		1753	my ($self, $ob) = @_;
		1754
		1755	return find "~" . $ob->name . "/" . $self->{path}
		1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
		1761	$self
		1762	}
		1763
		1764	# find and load all maps in the 3x3 area around a map
		1765	sub load_diag {
721	my ($map) = @_;	1766	my ($map) = @_;
722		1767
723	my $path = $map->tmpname;	1768	my @diag; # diagonal neighbours
724	defined $path or return;
725		1769
726	unlink "$path.pst";	1770	for (0 .. 3) {
727	};	1771	my $neigh = $map->tile_path ($_)
		1772	or next;
		1773	$neigh = find $neigh, $map
		1774	or next;
		1775	$neigh->load;
728		1776
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1777	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1778	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1779	}
730		1780
731	#############################################################################	1781	for (@diag) {
732	# load/save perl data associated with player->ob objects	1782	my $neigh = find @$_
733		1783	or next;
734	sub all_objects(@) {	1784	$neigh->load;
735	@_, map all_objects ($_->inv), @_	1785	}
736	}	1786	}
737		1787
738	# TODO: compatibility cruft, remove when no longer needed	1788	sub find_sync {
739	cf::player->attach (	1789	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1790
743	for my $o (all_objects $pl->ob) {	1791	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1792	}
745	$o->set_ob_key_value ("_perl_data");
746		1793
747	%$o = %{ Storable::thaw pack "H*", $value };	1794	sub do_load_sync {
		1795	my ($map) = @_;
		1796
		1797	cf::sync_job { $map->load };
		1798	}
		1799
		1800	our %MAP_PREFETCH;
		1801	our $MAP_PREFETCHER = undef;
		1802
		1803	sub find_async {
		1804	my ($path, $origin) = @_;
		1805
		1806	$path = normalise $path, $origin && $origin->{path};
		1807
		1808	if (my $map = $cf::MAP{$path}) {
		1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1810	}
		1811
		1812	undef $MAP_PREFETCH{$path};
		1813	$MAP_PREFETCHER ||= cf::async {
		1814	while (%MAP_PREFETCH) {
		1815	for my $path (keys %MAP_PREFETCH) {
		1816	my $map = find $path
		1817	or next;
		1818	$map->load;
		1819
		1820	delete $MAP_PREFETCH{$path};
748	}	1821	}
749	}	1822	}
		1823	undef $MAP_PREFETCHER;
		1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
		1828	}
		1829
		1830	sub save {
		1831	my ($self) = @_;
		1832
		1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1834
		1835	$self->{last_save} = $cf::RUNTIME;
		1836
		1837	return unless $self->dirty;
		1838
		1839	my $save = $self->save_path; utf8::encode $save;
		1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1841
		1842	$self->{load_path} = $save;
		1843
		1844	return if $self->{deny_save};
		1845
		1846	local $self->{last_access} = $self->last_access;#d#
		1847
		1848	cf::async {
		1849	$_->contr->save for $self->players;
		1850	};
		1851
		1852	if ($uniq) {
		1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1855	} else {
		1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	1857	}
751	);	1858	}
752		1859
753	#############################################################################	1860	sub swap_out {
		1861	my ($self) = @_;
754		1862
755	=head2 CORE EXTENSIONS	1863	# save first because save cedes
		1864	$self->save;
756		1865
757	Functions and methods that extend core crossfire objects.	1866	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		1867
759	=head3 cf::player	1868	return if $self->players;
		1869	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1870	return if $self->{deny_save};
		1871
		1872	$self->clear;
		1873	$self->in_memory (cf::MAP_SWAPPED);
		1874	}
		1875
		1876	sub reset_at {
		1877	my ($self) = @_;
		1878
		1879	# TODO: safety, remove and allow resettable per-player maps
		1880	return 1e99 if $self->{deny_reset};
		1881
		1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1884
		1885	$time + $to
		1886	}
		1887
		1888	sub should_reset {
		1889	my ($self) = @_;
		1890
		1891	$self->reset_at <= $cf::RUNTIME
		1892	}
		1893
		1894	sub reset {
		1895	my ($self) = @_;
		1896
		1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1898
		1899	return if $self->players;
		1900
		1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
		1912
		1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
		1916
		1917	$_->clear_links_to ($self) for values %cf::MAP;
		1918
		1919	$self->unlink_save;
		1920	$self->destroy;
		1921	}
		1922
		1923	my $nuke_counter = "aaaa";
		1924
		1925	sub nuke {
		1926	my ($self) = @_;
		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
		1934	$self->{deny_save} = 1;
		1935	$self->reset_timeout (1);
		1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
		1940	$self->reset; # polite request, might not happen
		1941	}
		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
		1979	=item cf::map::unique_maps
		1980
		1981	Returns an arrayref of paths of all shared maps that have
		1982	instantiated unique items. May block.
		1983
		1984	=cut
		1985
		1986	sub unique_maps() {
		1987	[
		1988	map {
		1989	utf8::decode $_;
		1990	/\.map$/
		1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
		1994	]
		1995	}
		1996
		1997	package cf;
		1998
		1999	=back
		2000
		2001	=head3 cf::object
		2002
		2003	=cut
		2004
		2005	package cf::object;
760		2006
761	=over 4	2007	=over 4
762		2008
763	=item cf::player::exists $login	2009	=item $ob->inv_recursive
764		2010
765	Returns true when the given account exists.	2011	Returns the inventory of the object _and_ their inventories, recursively.
766		2012
767	=cut	2013	=cut
768		2014
769	sub cf::player::exists($) {	2015	sub inv_recursive_;
770	cf::player::find $_[0]	2016	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2017	map { $_, inv_recursive_ $_->inv } @_
772	}	2018	}
773		2019
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	2020	sub inv_recursive {
775		2021	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	2022	}
		2023
		2024	package cf;
787		2025
788	=back	2026	=back
789		2027
790	=head3 cf::object::player	2028	=head3 cf::object::player
791		2029
…		…
807		2045
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2047
810	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
812	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
815	}	2064	}
816	}	2065	}
817		2066
818	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
819		2068
…		…
829	(ref $cf::CFG{"may_$access"}	2078	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2079	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2080	: $cf::CFG{"may_$access"})
832	}	2081	}
833		2082
		2083	=item $player_object->enter_link
		2084
		2085	Freezes the player and moves him/her to a special map (C<{link}>).
		2086
		2087	The player should be reasonably safe there for short amounts of time. You
		2088	I<MUST> call C<leave_link> as soon as possible, though.
		2089
		2090	Will never block.
		2091
		2092	=item $player_object->leave_link ($map, $x, $y)
		2093
		2094	Moves the player out of the special C<{link}> map onto the specified
		2095	map. If the map is not valid (or omitted), the player will be moved back
		2096	to the location he/she was before the call to C<enter_link>, or, if that
		2097	fails, to the emergency map position.
		2098
		2099	Might block.
		2100
		2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
		2112
		2113	sub cf::object::player::enter_link {
		2114	my ($self) = @_;
		2115
		2116	$self->deactivate_recursive;
		2117
		2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2119
		2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2121	if $self->map && $self->map->{path} ne "{link}";
		2122
		2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2124	}
		2125
		2126	sub cf::object::player::leave_link {
		2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
		2130
		2131	my $link_pos = delete $self->{_link_pos};
		2132
		2133	unless ($map) {
		2134	# restore original map position
		2135	($map, $x, $y) = @{ $link_pos || [] };
		2136	$map = cf::map::find $map;
		2137
		2138	unless ($map) {
		2139	($map, $x, $y) = @$EMERGENCY_POSITION;
		2140	$map = cf::map::find $map
		2141	or die "FATAL: cannot load emergency map\n";
		2142	}
		2143	}
		2144
		2145	($x, $y) = (-1, -1)
		2146	unless (defined $x) && (defined $y);
		2147
		2148	# use -1 or undef as default coordinates, not 0, 0
		2149	($x, $y) = ($map->enter_x, $map->enter_y)
		2150	if $x <=0 && $y <= 0;
		2151
		2152	$map->load;
		2153	$map->load_diag;
		2154
		2155	return unless $self->contr->active;
		2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2159	$self->enter_map ($map, $x, $y);
		2160	}
		2161
		2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2163
		2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
		2168
		2169	=cut
		2170
		2171	our $GOTOGEN;
		2172
		2173	sub cf::object::player::goto {
		2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2178
		2179	$self->enter_link;
		2180
		2181	(async {
		2182	my $map = eval {
		2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
		2186	$map = $map->customise_for ($self);
		2187	$map = $check->($map) if $check && $map;
		2188	} else {
		2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
		2191
		2192	$map
		2193	};
		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
		2202	$self->leave_link ($map, $x, $y);
		2203	}
		2204	})->prio (1);
		2205	}
		2206
		2207	=item $player_object->enter_exit ($exit_object)
		2208
		2209	=cut
		2210
		2211	sub parse_random_map_params {
		2212	my ($spec) = @_;
		2213
		2214	my $rmp = { # defaults
		2215	xsize => (cf::rndm 15, 40),
		2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
		2219	};
		2220
		2221	for (split /\n/, $spec) {
		2222	my ($k, $v) = split /\s+/, $_, 2;
		2223
		2224	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2225	}
		2226
		2227	$rmp
		2228	}
		2229
		2230	sub prepare_random_map {
		2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2234
		2235	# all this does is basically replace the /! path by
		2236	# a new random map path (?random/...) with a seed
		2237	# that depends on the exit object
		2238
		2239	my $rmp = parse_random_map_params $exit->msg;
		2240
		2241	if ($exit->map) {
		2242	$rmp->{region} = $exit->region->name;
		2243	$rmp->{origin_map} = $exit->map->path;
		2244	$rmp->{origin_x} = $exit->x;
		2245	$rmp->{origin_y} = $exit->y;
		2246	}
		2247
		2248	$rmp->{random_seed} ||= $exit->random_seed;
		2249
		2250	my $data = cf::to_json $rmp;
		2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
		2253
		2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
		2258
		2259	$exit->slaying ("?random/$md5");
		2260	$exit->msg (undef);
		2261	}
		2262	}
		2263
		2264	sub cf::object::player::enter_exit {
		2265	my ($self, $exit) = @_;
		2266
		2267	return unless $self->type == cf::PLAYER;
		2268
		2269	if ($exit->slaying eq "/!") {
		2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
		2279
		2280	$self->enter_link;
		2281
		2282	(async {
		2283	$self->deactivate_recursive; # just to be sure
		2284	unless (eval {
		2285	$self->goto ($slaying, $hp, $sp);
		2286
		2287	1;
		2288	}) {
		2289	$self->message ("Something went wrong deep within the crossfire server. "
		2290	. "I'll try to bring you back to the map you were before. "
		2291	. "Please report this to the dungeon master!",
		2292	cf::NDI_UNIQUE | cf::NDI_RED);
		2293
		2294	warn "ERROR in enter_exit: $@";
		2295	$self->leave_link;
		2296	}
		2297	})->prio (1);
		2298	}
		2299
834	=head3 cf::client	2300	=head3 cf::client
835		2301
836	=over 4	2302	=over 4
837		2303
838	=item $client->send_drawinfo ($text, $flags)	2304	=item $client->send_drawinfo ($text, $flags)
…		…
844		2310
845	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
847		2313
848	utf8::encode $text;	2314	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2316	}
851		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
852		2330
853	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
854		2332
855	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
881	on_reply => sub {	2359	on_reply => sub {
882	my ($ns, $msg) = @_;	2360	my ($ns, $msg) = @_;
883		2361
884	# this weird shuffling is so that direct followup queries	2362	# this weird shuffling is so that direct followup queries
885	# get handled first	2363	# get handled first
886	my $queue = delete $ns->{query_queue};	2364	my $queue = delete $ns->{query_queue}
		2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2366
888	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2369
890	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
891		2371
892	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2373	if (@$queue) {
…		…
897	}	2377	}
898	}	2378	}
899	},	2379	},
900	);	2380	);
901		2381
902	=item $client->coro (\&cb)	2382	=item $client->async (\&cb)
903		2383
904	Create a new coroutine, running the specified callback. The coroutine will	2384	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2385	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2386	or loss of connection).
907		2387
908	=cut	2388	=cut
909		2389
910	sub cf::client::coro {	2390	sub cf::client::async {
911	my ($self, $cb) = @_;	2391	my ($self, $cb) = @_;
912		2392
913	my $coro; $coro = async {	2393	my $coro = &Coro::async ($cb);
914	eval {	2394
915	$cb->();	2395	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2396	delete $self->{_coro}{$coro+0};
919	};	2397	});
920		2398
921	$self->{_coro}{$coro+0} = $coro;	2399	$self->{_coro}{$coro+0} = $coro;
		2400
		2401	$coro
922	}	2402	}
923		2403
924	cf::client->attach (	2404	cf::client->attach (
925	on_destroy => sub {	2405	on_destroy => sub {
926	my ($ns) = @_;	2406	my ($ns) = @_;
…		…
951		2431
952	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
953		2433
954	=pod	2434	=pod
955		2435
956	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
957		2437
958	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
959	cf::object::player player	2439	cf::object::player player
960	cf::player peaceful	2440	cf::player peaceful
961	cf::map trigger	2441	cf::map trigger
…		…
1042	=back	2522	=back
1043		2523
1044	=cut	2524	=cut
1045		2525
1046	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
1047		2528
1048	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
1049		2531
1050	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
1051	currently store anything that can be serialised using Storable, which
1052	excludes objects.
1053		2533
1054	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
1055	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
1056		2537
1057	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
1058		2539
1059	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
1060		2542
1061	Return a hashref for use by the extension C<$family>, which can be
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064
1065	=item $value = cf::db_get $family => $key
1066
1067	Returns a single value from the database
1068
1069	=item cf::db_put $family => $hashref
1070
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_put $family => $key => $value
1075
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086
1087	=cut
1088
1089	our $DB;
1090
1091	{
1092	my $path = cf::localdir . "/database.pst";
1093
1094	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };
1097	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
1098		2545
1099	my $pid;	2546	while (my ($face, $info) = each %$faces) {
1100		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1101	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1102	warn "saving database $path\n";#d# remove later	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1103	waitpid $pid, 0 if $pid;	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1104	if (0 == ($pid = fork)) {	2551	Coro::cede;
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});
1122
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}
1127
1128	sub db_get($;$) {
1129	@_ >= 2
1130	? $DB->{$_[0]}{$_[1]}
1131	: ($DB->{$_[0]} ||= { })
1132	}
1133
1134	sub db_put($$;$) {
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	2552	}
1148	);
1149	}
1150		2553
1151	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
1152	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
1153		2616
1154	sub cfg_load {	2617	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
1156	or return;	2619	or return;
1157		2620
1158	local $/;	2621	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
		2623
		2624	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2625
		2626	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2627	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2628
		2629	if (exists $CFG{mlockall}) {
		2630	eval {
		2631	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2632	and die "WARNING: m(un)lockall failed: $!\n";
		2633	};
		2634	warn $@ if $@;
		2635	}
1160	}	2636	}
1161		2637
1162	sub main {	2638	sub main {
		2639	# we must not ever block the main coroutine
		2640	local $Coro::idle = sub {
		2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2642	(async {
		2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
		2645	};
		2646
1163	cfg_load;	2647	cfg_load;
1164	db_load;	2648	db_init;
1165	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
1166	Event::loop;	2652	Event::loop;
1167	}	2653	}
1168		2654
1169	#############################################################################	2655	#############################################################################
1170	# initialisation	2656	# initialisation and cleanup
1171		2657
1172	sub _perl_reload(&) {	2658	# install some emergency cleanup handlers
		2659	BEGIN {
		2660	for my $signal (qw(INT HUP TERM)) {
		2661	Event->signal (
		2662	reentrant => 0,
		2663	data => WF_AUTOCANCEL,
		2664	signal => $signal,
		2665	prio => 0,
		2666	cb => sub {
		2667	cf::cleanup "SIG$signal";
		2668	},
		2669	);
		2670	}
		2671	}
		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
		2711	sub emergency_save() {
		2712	my $freeze_guard = cf::freeze_mainloop;
		2713
		2714	warn "enter emergency perl save\n";
		2715
		2716	cf::sync_job {
		2717	# use a peculiar iteration method to avoid tripping on perl
		2718	# refcount bugs in for. also avoids problems with players
		2719	# and maps saved/destroyed asynchronously.
		2720	warn "begin emergency player save\n";
		2721	for my $login (keys %cf::PLAYER) {
		2722	my $pl = $cf::PLAYER{$login} or next;
		2723	$pl->valid or next;
		2724	$pl->save;
		2725	}
		2726	warn "end emergency player save\n";
		2727
		2728	warn "begin emergency map save\n";
		2729	for my $path (keys %cf::MAP) {
		2730	my $map = $cf::MAP{$path} or next;
		2731	$map->valid or next;
		2732	$map->save;
		2733	}
		2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
		2739	};
		2740
		2741	warn "leave emergency perl save\n";
		2742	}
		2743
		2744	sub post_cleanup {
1173	my ($msg) = @_;	2745	my ($make_core) = @_;
1174		2746
1175	$msg->("reloading...");	2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
1176		2750
1177	eval {	2751	sub do_reload_perl() {
1178	# cancel all watchers	2752	# can/must only be called in main
		2753	if ($Coro::current != $Coro::main) {
		2754	warn "can only reload from main coroutine";
		2755	return;
		2756	}
		2757
		2758	warn "reloading...";
		2759
		2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
		2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
		2766
		2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
		2770	# if anything goes wrong in here, we should simply crash as we already saved
		2771
		2772	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2775	}
1182		2776
1183	# unload all extensions	2777	warn "flushing outstanding aio requests";
1184	for (@exts) {	2778	for (;;) {
1185	$msg->("unloading <$_>");	2779	BDB::flush;
1186	unload_extension $_;	2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
		2788	warn "cancelling all extension coros";
		2789	$_->cancel for values %EXT_CORO;
		2790	%EXT_CORO = ();
		2791
		2792	warn "removing commands";
		2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
		2800	warn "... unloading $pkg";
		2801
		2802	if (my $cb = $pkg->can ("unload")) {
		2803	eval {
		2804	$cb->($pkg);
		2805	1
		2806	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2807	}
1188		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
1189	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2816
1193	$msg->("removing <$k>");	2817	warn "... unloading $k";
1194	delete $INC{$k};	2818	delete $INC{$k};
1195		2819
1196	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
1198		2822
…		…
1201	}	2825	}
1202		2826
1203	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
1204	}	2828	}
1205		2829
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2833
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
1218		2837
1219	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2839	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
1222		2841
1223	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
1224	$msg->("reloading cf.pm");	2844	warn "reloading cf.pm";
1225	require cf;	2845	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2847
1228	# load config and database again	2848	warn "loading config and database again";
1229	cf::cfg_load;	2849	cf::cfg_load;
1230	cf::db_load;
1231		2850
1232	# load extensions	2851	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	2852	cf::load_extensions;
1235		2853
1236	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");	2855	_global_reattach; # objects, sockets
1238	_global_reattach;	2856	warn "reattaching attachments to maps";
		2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
		2860
		2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
		2865	warn $@;
		2866	warn "error while reloading, exiting.";
		2867	exit 1;
1239	};	2868	};
1240	$msg->($@) if $@;
1241		2869
1242	$msg->("reloaded");	2870	warn "reloaded";
1243	};	2871	};
1244		2872
1245	sub perl_reload() {	2873	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {	2874
1247	warn $_[0];	2875	sub reload_perl() {
1248	print "$_[0]\n";	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
		2878
		2879	$RELOAD_WATCHER ||= Event->timer (
		2880	reentrant => 0,
		2881	after => 0,
		2882	data => WF_AUTOCANCEL,
		2883	cb => sub {
		2884	do_reload_perl;
		2885	undef $RELOAD_WATCHER;
		2886	},
1249	};	2887	);
1250	}	2888	}
1251		2889
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	2890	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
1256		2892
1257	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	2894	$who->message ("reloading server.");
1259	warn $_[0];	2895	async { reload_perl };
1260	$who->message ($_[0]);	2896	}
		2897	};
		2898
		2899	unshift @INC, $LIBDIR;
		2900
		2901	my $bug_warning = 0;
		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
		2926	$TICK_WATCHER = Event->timer (
		2927	reentrant => 0,
		2928	parked => 1,
		2929	prio => 0,
		2930	at => $NEXT_TICK || $TICK,
		2931	data => WF_AUTOCANCEL,
		2932	cb => sub {
		2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
		2939	$NOW = $tick_start = Event::time;
		2940
		2941	cf::server_tick; # one server iteration
		2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1261	};	2964	};
1262	}
1263	};
1264		2965
1265	unshift @INC, $LIBDIR;	2966	$RUNTIME += $TICK;
1266
1267	$TICK_WATCHER = Event->timer (
1268	prio => 0,
1269	at => $NEXT_TICK || 1,
1270	data => WF_AUTOCANCEL,
1271	cb => sub {
1272	cf::server_tick; # one server iteration
1273
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
		2968
		2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
1276		2988
1277	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1279		2991
1280	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
1282	},	3001	},
1283	);	3002	);
1284		3003
		3004	{
		3005	BDB::max_poll_time $TICK * 0.1;
		3006	$BDB_POLL_WATCHER = Event->io (
		3007	reentrant => 0,
		3008	fd => BDB::poll_fileno,
		3009	poll => 'r',
		3010	prio => 0,
		3011	data => WF_AUTOCANCEL,
		3012	cb => \&BDB::poll_cb,
		3013	);
		3014	BDB::min_parallel 8;
		3015
		3016	BDB::set_sync_prepare {
		3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
		3050	};
		3051	}
		3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
1285	IO::AIO::max_poll_time $TICK * 0.2;	3058	IO::AIO::max_poll_time $TICK * 0.1;
1286		3059	$AIO_POLL_WATCHER = Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	3060	reentrant => 0,
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,	3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
1291	cb => \&IO::AIO::poll_cb);	3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
		3109
		3110	END { cf::emergency_save }
1292		3111
1293	1	3112	1
1294		3113

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