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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 1.187 by root, Sat Jan 20 21:06:52 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.4 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
19	use IO::AIO 2.3;	23	use IO::AIO 2.32 ();
20	use YAML::Syck ();	24	use YAML::Syck ();
21	use Time::HiRes;	25	use Time::HiRes;
22		26
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
24		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
27		33
28	$Coro::main->prio (Coro::PRIO_MIN);	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		35
32	our %COMMAND = ();	36	our %COMMAND = ();
33	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
35		43
36	our @EVENT;	44	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
38		46
39	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
41	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
42		53
43	our %CFG;	54	our %CFG;
44		55
45	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
46		87
47	#############################################################################	88	#############################################################################
48		89
49	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
50		91
51	=over 4	92	=over 4
52		93
53	=item $cf::UPTIME	94	=item $cf::UPTIME
54		95
55	The timestamp of the server start (so not actually an uptime).	96	The timestamp of the server start (so not actually an uptime).
		97
		98	=item $cf::RUNTIME
		99
		100	The time this server has run, starts at 0 and is increased by $cf::TICK on
		101	every server tick.
56		102
57	=item $cf::LIBDIR	103	=item $cf::LIBDIR
58		104
59	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
61		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
62	=item $cf::TICK	112	=item $cf::TICK
63		113
64	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
65		115
66	=item %cf::CFG	116	=item %cf::CFG
67		117
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
70		127
71	=back	128	=back
72		129
73	=cut	130	=cut
74		131
75	BEGIN {	132	BEGIN {
76	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
78	$msg .= "\n"	137	$msg .= "\n"
79	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
80		139
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
83	};	141	};
84	}	142	}
85		143
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		163
106	$Event::DIED = sub {	164	$Event::DIED = sub {
107	warn "error in event callback: @_";	165	warn "error in event callback: @_";
108	};	166	};
109		167
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
115		169
116	=over 4	170	=over 4
117		171
		172	=item dumpval $ref
		173
118	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
119		194
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		196
122	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
123		198
…		…
137	=cut	212	=cut
138		213
139	sub to_json($) {	214	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
		217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
		358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		359	and return;
		360
		361	aio_fsync $fh
		362	and return;
		363
		364	close $fh
		365	or return;
		366
		367	aio_rename "$runtime~", $runtime
		368	and return;
		369
		370	1
142	}	371	}
143		372
144	=back	373	=back
145		374
146	=cut	375	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	507	our @CB_MAP = ();
279		508
280	my %attachment;	509	my %attachment;
281		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
282	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
284		519
285	use sort 'stable';	520	use sort 'stable';
286		521
…		…
454	=cut	689	=cut
455		690
456	#############################################################################	691	#############################################################################
457	# object support	692	# object support
458		693
		694	sub reattach {
		695	# basically do the same as instantiate, without calling instantiate
		696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		699
		700	my $registry = $obj->registry;
		701
		702	@$registry = ();
		703
		704	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		705
		706	for my $name (keys %{ $obj->{_attachment} || {} }) {
		707	if (my $attach = $attachment{$name}) {
		708	for (@$attach) {
		709	my ($klass, @attach) = @$_;
		710	_attach $registry, $klass, @attach;
		711	}
		712	} else {
		713	warn "object uses attachment '$name' that is not available, postponing.\n";
		714	}
		715	}
		716	}
		717
459	cf::attachable->attach (	718	cf::attachable->attach (
460	prio => -1000000,	719	prio => -1000000,
461	on_instantiate => sub {	720	on_instantiate => sub {
462	my ($obj, $data) = @_;	721	my ($obj, $data) = @_;
463		722
…		…
467	my ($name, $args) = @$_;	726	my ($name, $args) = @$_;
468		727
469	$obj->attach ($name, %{$args || {} });	728	$obj->attach ($name, %{$args || {} });
470	}	729	}
471	},	730	},
472	on_reattach => sub {	731	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 {	732	on_clone => sub {
493	my ($src, $dst) = @_;	733	my ($src, $dst) = @_;
494		734
495	@{$dst->registry} = @{$src->registry};	735	@{$dst->registry} = @{$src->registry};
496		736
…		…
502	);	742	);
503		743
504	sub object_freezer_save {	744	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	745	my ($filename, $rdata, $objs) = @_;
506		746
		747	sync_job {
507	if (length $$rdata) {	748	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	749	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	750	$filename, length $$rdata, scalar @$objs;
510		751
511	if (open my $fh, ">:raw", "$filename~") {	752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	753	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		755	aio_fsync $fh;
519	close $fh;	756	close $fh;
		757
		758	if (@$objs) {
		759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		760	chmod SAVE_MODE, $fh;
		761	my $data = Storable::nfreeze { version => 1, objs => $objs };
		762	aio_write $fh, 0, (length $data), $data, 0;
		763	aio_fsync $fh;
		764	close $fh;
520	rename "$filename.pst~", "$filename.pst";	765	aio_rename "$filename.pst~", "$filename.pst";
		766	}
		767	} else {
		768	aio_unlink "$filename.pst";
		769	}
		770
		771	aio_rename "$filename~", $filename;
521	} else {	772	} else {
522	unlink "$filename.pst";	773	warn "FATAL: $filename~: $!\n";
523	}	774	}
524
525	rename "$filename~", $filename;
526	} else {	775	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	776	aio_unlink $filename;
531	unlink "$filename.pst";	777	aio_unlink "$filename.pst";
		778	}
532	}	779	}
533	}	780	}
534		781
535	sub object_freezer_as_string {	782	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	783	my ($rdata, $objs) = @_;
…		…
541	}	788	}
542		789
543	sub object_thawer_load {	790	sub object_thawer_load {
544	my ($filename) = @_;	791	my ($filename) = @_;
545		792
546	local $/;	793	my ($data, $av);
547		794
548	my $av;	795	(aio_load $filename, $data) >= 0
		796	or return;
549		797
550	#TODO: use sysread etc.	798	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	799	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	800	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
555	}	802	}
		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	806	return ($data, $av);
557	}
558
559	()
560	}	807	}
561		808
562	#############################################################################	809	#############################################################################
563	# command handling &c	810	# command handling &c
564		811
…		…
588	=cut	835	=cut
589		836
590	sub register_extcmd {	837	sub register_extcmd {
591	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
592		839
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
597	}	841	}
598		842
599	cf::player->attach (	843	cf::player->attach (
600	on_command => sub {	844	on_command => sub {
601	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
614		858
615	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
616		860
617	if (ref $msg) {	861	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	865	}
622	}	866	}
623	} else {	867	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		870
627	cf::override;	871	cf::override;
628	},	872	},
629	);	873	);
630		874
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	875	sub load_extension {
638	my ($path) = @_;	876	my ($path) = @_;
639		877
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	879	my $base = $1;
642	my $pkg = $1;	880	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
645		883
646	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
647		885
648	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
649	or die "$path: $!";	887	or die "$path: $!";
650		888
651	my $source =	889	my $source =
652	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
655	. "\n};\n1";	893	. "\n};\n1";
656		894
657	eval $source	895	unless (eval $source) {
658	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
659	: "extension disabled.\n";	897	: "extension disabled.\n";
660		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
661	push @exts, $pkg;	899	warn $@;
662	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
663		901	exit 1;
664	# no strict 'refs';	902	}
665	# @{"$pkg\::ISA"} = ext::;	903	die $@;
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	# }	904	}
680		905
681	# remove commands	906	push @EXTS, $pkg;
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}
690	}
691
692	# remove extcmds
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	907	}
706		908
707	sub load_extensions {	909	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	911	next unless -r $ext;
…		…
713	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
714	}	916	}
715	}	917	}
716		918
717	#############################################################################	919	#############################################################################
718	# load/save/clean perl data associated with a map
719		920
720	*cf::mapsupport::on_clean = sub {	921	=head2 CORE EXTENSIONS
		922
		923	Functions and methods that extend core crossfire objects.
		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
		931	=head3 cf::player
		932
		933	=over 4
		934
		935	=item cf::player::find $login
		936
		937	Returns the given player object, loading it if necessary (might block).
		938
		939	=cut
		940
		941	sub playerdir($) {
		942	cf::localdir
		943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
		1088	}
		1089
		1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1091
		1092	Sends an ext reply to the player.
		1093
		1094	=cut
		1095
		1096	sub ext_reply($$$%) {
		1097	my ($self, $id, %msg) = @_;
		1098
		1099	$msg{msgid} = $id;
		1100
		1101	$self->send ("ext " . cf::to_json \%msg);
		1102	}
		1103
		1104	package cf;
		1105
		1106	=back
		1107
		1108
		1109	=head3 cf::map
		1110
		1111	=over 4
		1112
		1113	=cut
		1114
		1115	package cf::map;
		1116
		1117	use Fcntl;
		1118	use Coro::AIO;
		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
		1124	our $MAX_RESET = 3600;
		1125	our $DEFAULT_RESET = 3000;
		1126
		1127	sub generate_random_map {
		1128	my ($self, $rmp) = @_;
		1129	# mit "rum" bekleckern, nicht
		1130	$self->_create_random_map (
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1268	}
		1269
		1270	# and all this just because we cannot iterate over
		1271	# all maps in C++...
		1272	sub change_all_map_light {
		1273	my ($change) = @_;
		1274
		1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
		1277	}
		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
		1287	sub load_header_from($) {
		1288	my ($self, $path) = @_;
		1289
		1290	utf8::encode $path;
		1291	aio_open $path, O_RDONLY, 0
		1292	or return;
		1293
		1294	$self->_load_header ($path)
		1295	or return;
		1296
		1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub load_header {
		1315	my ($self) = @_;
		1316
		1317	if ($self->load_temp) {
		1318	$self->last_access ((delete $self->{last_access})
		1319	|| $cf::RUNTIME); #d#
		1320	# safety
		1321	$self->{instantiate_time} = $cf::RUNTIME
		1322	if $self->{instantiate_time} > $cf::RUNTIME;
		1323	} else {
		1324	$self->load_orig
		1325	or return;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	1
		1334	}
		1335
		1336	sub find;
		1337	sub find {
		1338	my ($path, $origin) = @_;
		1339
		1340	$path = normalise $path, $origin && $origin->path;
		1341
		1342	cf::lock_wait "map_find:$path";
		1343
		1344	$cf::MAP{$path} || do {
		1345	my $guard = cf::lock_acquire "map_find:$path";
		1346	my $map = new_from_path cf::map $path
		1347	or return;
		1348
		1349	$map->{last_save} = $cf::RUNTIME;
		1350
		1351	$map->load_header
		1352	or return;
		1353
		1354	if ($map->should_reset) {
		1355	# doing this can freeze the server in a sync job, obviously
		1356	#$cf::WAIT_FOR_TICK->wait;
		1357	$map->reset;
		1358	undef $guard;
		1359	$map = find $path
		1360	or return;
		1361	}
		1362
		1363	$cf::MAP{$path} = $map
		1364	}
		1365	}
		1366
		1367	sub load {
		1368	my ($self) = @_;
		1369
		1370	my $path = $self->{path};
		1371	my $guard = cf::lock_acquire "map_load:$path";
		1372
		1373	return if $self->in_memory != cf::MAP_SWAPPED;
		1374
		1375	$self->in_memory (cf::MAP_LOADING);
		1376
		1377	$self->alloc;
		1378	$self->_load_objects ($self->{load_path}, 1)
		1379	or return;
		1380
		1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1382	if delete $self->{load_original};
		1383
		1384	if (my $uniq = $self->uniq_path) {
		1385	utf8::encode $uniq;
		1386	if (aio_open $uniq, O_RDONLY, 0) {
		1387	$self->clear_unique_items;
		1388	$self->_load_objects ($uniq, 0);
		1389	}
		1390	}
		1391
		1392	Coro::cede;
		1393
		1394	# now do the right thing for maps
		1395	$self->link_multipart_objects;
		1396
		1397	unless ($self->{deny_activate}) {
		1398	$self->decay_objects;
		1399	$self->fix_auto_apply;
		1400	$self->update_buttons;
		1401	Coro::cede;
		1402	$self->set_darkness_map;
		1403	$self->difficulty ($self->estimate_difficulty)
		1404	unless $self->difficulty;
		1405	Coro::cede;
		1406	$self->activate;
		1407	}
		1408
		1409	$self->in_memory (cf::MAP_IN_MEMORY);
		1410	}
		1411
		1412	sub customise_for {
		1413	my ($self, $ob) = @_;
		1414
		1415	return find "~" . $ob->name . "/" . $self->{path}
		1416	if $self->per_player;
		1417
		1418	$self
		1419	}
		1420
		1421	# find and load all maps in the 3x3 area around a map
		1422	sub load_diag {
721	my ($map) = @_;	1423	my ($map) = @_;
722		1424
723	my $path = $map->tmpname;	1425	my @diag; # diagonal neighbours
724	defined $path or return;
725		1426
726	unlink "$path.pst";	1427	for (0 .. 3) {
727	};	1428	my $neigh = $map->tile_path ($_)
		1429	or next;
		1430	$neigh = find $neigh, $map
		1431	or next;
		1432	$neigh->load;
728		1433
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1436	}
730		1437
731	#############################################################################	1438	for (@diag) {
732	# load/save perl data associated with player->ob objects	1439	my $neigh = find @$_
733		1440	or next;
734	sub all_objects(@) {	1441	$neigh->load;
735	@_, map all_objects ($_->inv), @_	1442	}
736	}	1443	}
737		1444
738	# TODO: compatibility cruft, remove when no longer needed	1445	sub find_sync {
739	cf::player->attach (	1446	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1447
743	for my $o (all_objects $pl->ob) {	1448	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1449	}
745	$o->set_ob_key_value ("_perl_data");
746		1450
747	%$o = %{ Storable::thaw pack "H*", $value };	1451	sub do_load_sync {
		1452	my ($map) = @_;
		1453
		1454	cf::sync_job { $map->load };
		1455	}
		1456
		1457	our %MAP_PREFETCH;
		1458	our $MAP_PREFETCHER = undef;
		1459
		1460	sub find_async {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->{path};
		1464
		1465	if (my $map = $cf::MAP{$path}) {
		1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1467	}
		1468
		1469	undef $MAP_PREFETCH{$path};
		1470	$MAP_PREFETCHER ||= cf::async {
		1471	while (%MAP_PREFETCH) {
		1472	for my $path (keys %MAP_PREFETCH) {
		1473	my $map = find $path
		1474	or next;
		1475	$map->load;
		1476
		1477	delete $MAP_PREFETCH{$path};
748	}	1478	}
749	}	1479	}
		1480	undef $MAP_PREFETCHER;
		1481	};
		1482
		1483	()
		1484	}
		1485
		1486	sub save {
		1487	my ($self) = @_;
		1488
		1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1490
		1491	$self->{last_save} = $cf::RUNTIME;
		1492
		1493	return unless $self->dirty;
		1494
		1495	my $save = $self->save_path; utf8::encode $save;
		1496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1497
		1498	$self->{load_path} = $save;
		1499
		1500	return if $self->{deny_save};
		1501
		1502	local $self->{last_access} = $self->last_access;#d#
		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
		1507
		1508	if ($uniq) {
		1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1511	} else {
		1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	1513	}
751	);	1514	}
752		1515
753	#############################################################################	1516	sub swap_out {
		1517	my ($self) = @_;
754		1518
755	=head2 CORE EXTENSIONS	1519	# save first because save cedes
		1520	$self->save;
756		1521
757	Functions and methods that extend core crossfire objects.	1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		1523
759	=head3 cf::player	1524	return if $self->players;
		1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1526	return if $self->{deny_save};
		1527
		1528	$self->clear;
		1529	$self->in_memory (cf::MAP_SWAPPED);
		1530	}
		1531
		1532	sub reset_at {
		1533	my ($self) = @_;
		1534
		1535	# TODO: safety, remove and allow resettable per-player maps
		1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1537	return 1e99 if $self->{deny_reset};
		1538
		1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1541
		1542	$time + $to
		1543	}
		1544
		1545	sub should_reset {
		1546	my ($self) = @_;
		1547
		1548	$self->reset_at <= $cf::RUNTIME
		1549	}
		1550
		1551	sub reset {
		1552	my ($self) = @_;
		1553
		1554	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1555
		1556	return if $self->players;
		1557	return if $self->isa ("ext::map_per_player");#d#
		1558
		1559	warn "resetting map ", $self->path;#d#
		1560
		1561	delete $cf::MAP{$self->path};
		1562
		1563	$self->in_memory (cf::MAP_SWAPPED);
		1564	$self->clear;
		1565
		1566	$_->clear_links_to ($self) for values %cf::MAP;
		1567
		1568	$self->unlink_save;
		1569	$self->destroy;
		1570	}
		1571
		1572	my $nuke_counter = "aaaa";
		1573
		1574	sub nuke {
		1575	my ($self) = @_;
		1576
		1577	delete $cf::MAP{$self->path};
		1578
		1579	$self->unlink_save;
		1580
		1581	bless $self, "cf::map";
		1582	delete $self->{deny_reset};
		1583	$self->{deny_save} = 1;
		1584	$self->reset_timeout (1);
		1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1586
		1587	$cf::MAP{$self->path} = $self;
		1588
		1589	$self->reset; # polite request, might not happen
		1590	}
		1591
		1592	=item cf::map::unique_maps
		1593
		1594	Returns an arrayref of paths of all shared maps that have
		1595	instantiated unique items. May block.
		1596
		1597	=cut
		1598
		1599	sub unique_maps() {
		1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.pst$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	s/\.map$//;
		1611	push @paths, $_;
		1612	}
		1613
		1614	\@paths
		1615	}
		1616
		1617	package cf;
		1618
		1619	=back
		1620
		1621	=head3 cf::object
		1622
		1623	=cut
		1624
		1625	package cf::object;
760		1626
761	=over 4	1627	=over 4
762		1628
763	=item cf::player::exists $login	1629	=item $ob->inv_recursive
764		1630
765	Returns true when the given account exists.	1631	Returns the inventory of the object _and_ their inventories, recursively.
766		1632
767	=cut	1633	=cut
768		1634
769	sub cf::player::exists($) {	1635	sub inv_recursive_;
770	cf::player::find $_[0]	1636	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1637	map { $_, inv_recursive_ $_->inv } @_
772	}	1638	}
773		1639
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1640	sub inv_recursive {
775		1641	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	}	1642	}
		1643
		1644	package cf;
787		1645
788	=back	1646	=back
789		1647
790	=head3 cf::object::player	1648	=head3 cf::object::player
791		1649
…		…
829	(ref $cf::CFG{"may_$access"}	1687	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1688	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1689	: $cf::CFG{"may_$access"})
832	}	1690	}
833		1691
		1692	=item $player_object->enter_link
		1693
		1694	Freezes the player and moves him/her to a special map (C<{link}>).
		1695
		1696	The player should be reasonably safe there for short amounts of time. You
		1697	I<MUST> call C<leave_link> as soon as possible, though.
		1698
		1699	Will never block.
		1700
		1701	=item $player_object->leave_link ($map, $x, $y)
		1702
		1703	Moves the player out of the special C<{link}> map onto the specified
		1704	map. If the map is not valid (or omitted), the player will be moved back
		1705	to the location he/she was before the call to C<enter_link>, or, if that
		1706	fails, to the emergency map position.
		1707
		1708	Might block.
		1709
		1710	=cut
		1711
		1712	sub link_map {
		1713	unless ($LINK_MAP) {
		1714	$LINK_MAP = cf::map::find "{link}"
		1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1716	$LINK_MAP->load;
		1717	}
		1718
		1719	$LINK_MAP
		1720	}
		1721
		1722	sub cf::object::player::enter_link {
		1723	my ($self) = @_;
		1724
		1725	$self->deactivate_recursive;
		1726
		1727	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1728
		1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1730	if $self->map;
		1731
		1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1733	}
		1734
		1735	sub cf::object::player::leave_link {
		1736	my ($self, $map, $x, $y) = @_;
		1737
		1738	my $link_pos = delete $self->{_link_pos};
		1739
		1740	unless ($map) {
		1741	# restore original map position
		1742	($map, $x, $y) = @{ $link_pos || [] };
		1743	$map = cf::map::find $map;
		1744
		1745	unless ($map) {
		1746	($map, $x, $y) = @$EMERGENCY_POSITION;
		1747	$map = cf::map::find $map
		1748	or die "FATAL: cannot load emergency map\n";
		1749	}
		1750	}
		1751
		1752	($x, $y) = (-1, -1)
		1753	unless (defined $x) && (defined $y);
		1754
		1755	# use -1 or undef as default coordinates, not 0, 0
		1756	($x, $y) = ($map->enter_x, $map->enter_y)
		1757	if $x <=0 && $y <= 0;
		1758
		1759	$map->load;
		1760	$map->load_diag;
		1761
		1762	return unless $self->contr->active;
		1763	$self->activate_recursive;
		1764	$self->enter_map ($map, $x, $y);
		1765	}
		1766
		1767	cf::player->attach (
		1768	on_logout => sub {
		1769	my ($pl) = @_;
		1770
		1771	# abort map switching before logout
		1772	if ($pl->ob->{_link_pos}) {
		1773	cf::sync_job {
		1774	$pl->ob->leave_link
		1775	};
		1776	}
		1777	},
		1778	on_login => sub {
		1779	my ($pl) = @_;
		1780
		1781	# try to abort aborted map switching on player login :)
		1782	# should happen only on crashes
		1783	if ($pl->ob->{_link_pos}) {
		1784	$pl->ob->enter_link;
		1785	(async {
		1786	# we need this sleep as the login has a concurrent enter_exit running
		1787	# and this sleep increases chances of the player not ending up in scorn
		1788	$pl->ob->reply (undef,
		1789	"There was an internal problem at your last logout, "
		1790	. "the server will try to bring you to your intended destination in a second.",
		1791	cf::NDI_RED);
		1792	Coro::Timer::sleep 1;
		1793	$pl->ob->leave_link;
		1794	})->prio (2);
		1795	}
		1796	},
		1797	);
		1798
		1799	=item $player_object->goto ($path, $x, $y)
		1800
		1801	=cut
		1802
		1803	sub cf::object::player::goto {
		1804	my ($self, $path, $x, $y) = @_;
		1805
		1806	$self->enter_link;
		1807
		1808	(async {
		1809	my $map = cf::map::find $path;
		1810	$map = $map->customise_for ($self) if $map;
		1811
		1812	# warn "entering ", $map->path, " at ($x, $y)\n"
		1813	# if $map;
		1814
		1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1816
		1817	$self->leave_link ($map, $x, $y);
		1818	})->prio (1);
		1819	}
		1820
		1821	=item $player_object->enter_exit ($exit_object)
		1822
		1823	=cut
		1824
		1825	sub parse_random_map_params {
		1826	my ($spec) = @_;
		1827
		1828	my $rmp = { # defaults
		1829	xsize => (cf::rndm 15, 40),
		1830	ysize => (cf::rndm 15, 40),
		1831	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1832	#layout => string,
		1833	};
		1834
		1835	for (split /\n/, $spec) {
		1836	my ($k, $v) = split /\s+/, $_, 2;
		1837
		1838	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1839	}
		1840
		1841	$rmp
		1842	}
		1843
		1844	sub prepare_random_map {
		1845	my ($exit) = @_;
		1846
		1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1848
		1849	# all this does is basically replace the /! path by
		1850	# a new random map path (?random/...) with a seed
		1851	# that depends on the exit object
		1852
		1853	my $rmp = parse_random_map_params $exit->msg;
		1854
		1855	if ($exit->map) {
		1856	$rmp->{region} = $exit->map->region_name;
		1857	$rmp->{origin_map} = $exit->map->path;
		1858	$rmp->{origin_x} = $exit->x;
		1859	$rmp->{origin_y} = $exit->y;
		1860	}
		1861
		1862	$rmp->{random_seed} ||= $exit->random_seed;
		1863
		1864	my $data = cf::to_json $rmp;
		1865	my $md5 = Digest::MD5::md5_hex $data;
		1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1867
		1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1869	aio_write $fh, 0, (length $data), $data, 0;
		1870	undef $fh;
		1871	aio_rename "$meta~", $meta;
		1872
		1873	$exit->slaying ("?random/$md5");
		1874	$exit->msg (undef);
		1875	}
		1876	}
		1877
		1878	sub cf::object::player::enter_exit {
		1879	my ($self, $exit) = @_;
		1880
		1881	return unless $self->type == cf::PLAYER;
		1882
		1883	$self->enter_link;
		1884
		1885	(async {
		1886	$self->deactivate_recursive; # just to be sure
		1887	unless (eval {
		1888	prepare_random_map $exit
		1889	if $exit->slaying eq "/!";
		1890
		1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1893
		1894	1;
		1895	}) {
		1896	$self->message ("Something went wrong deep within the crossfire server. "
		1897	. "I'll try to bring you back to the map you were before. "
		1898	. "Please report this to the dungeon master!",
		1899	cf::NDI_UNIQUE | cf::NDI_RED);
		1900
		1901	warn "ERROR in enter_exit: $@";
		1902	$self->leave_link;
		1903	}
		1904	})->prio (1);
		1905	}
		1906
834	=head3 cf::client	1907	=head3 cf::client
835		1908
836	=over 4	1909	=over 4
837		1910
838	=item $client->send_drawinfo ($text, $flags)	1911	=item $client->send_drawinfo ($text, $flags)
…		…
881	on_reply => sub {	1954	on_reply => sub {
882	my ($ns, $msg) = @_;	1955	my ($ns, $msg) = @_;
883		1956
884	# this weird shuffling is so that direct followup queries	1957	# this weird shuffling is so that direct followup queries
885	# get handled first	1958	# get handled first
886	my $queue = delete $ns->{query_queue};	1959	my $queue = delete $ns->{query_queue}
		1960	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		1961
888	(shift @$queue)->[1]->($msg);	1962	(shift @$queue)->[1]->($msg);
889		1963
890	push @{ $ns->{query_queue} }, @$queue;	1964	push @{ $ns->{query_queue} }, @$queue;
891		1965
…		…
897	}	1971	}
898	}	1972	}
899	},	1973	},
900	);	1974	);
901		1975
902	=item $client->coro (\&cb)	1976	=item $client->async (\&cb)
903		1977
904	Create a new coroutine, running the specified callback. The coroutine will	1978	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	1979	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	1980	or loss of connection).
907		1981
908	=cut	1982	=cut
909		1983
910	sub cf::client::coro {	1984	sub cf::client::async {
911	my ($self, $cb) = @_;	1985	my ($self, $cb) = @_;
912		1986
913	my $coro; $coro = async {	1987	my $coro = &Coro::async ($cb);
914	eval {	1988
915	$cb->();	1989	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	1990	delete $self->{_coro}{$coro+0};
919	};	1991	});
920		1992
921	$self->{_coro}{$coro+0} = $coro;	1993	$self->{_coro}{$coro+0} = $coro;
		1994
		1995	$coro
922	}	1996	}
923		1997
924	cf::client->attach (	1998	cf::client->attach (
925	on_destroy => sub {	1999	on_destroy => sub {
926	my ($ns) = @_;	2000	my ($ns) = @_;
…		…
1090		2164
1091	{	2165	{
1092	my $path = cf::localdir . "/database.pst";	2166	my $path = cf::localdir . "/database.pst";
1093		2167
1094	sub db_load() {	2168	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };	2169	$DB = stat $path ? Storable::retrieve $path : { };
1097	}	2170	}
1098		2171
1099	my $pid;	2172	my $pid;
1100		2173
1101	sub db_save() {	2174	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;	2175	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {	2176	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;	2177	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";	2178	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;	2179	rename "$path~", $path;
…		…
1114	sub db_sync() {	2186	sub db_sync() {
1115	db_save if $dirty;	2187	db_save if $dirty;
1116	undef $dirty;	2188	undef $dirty;
1117	}	2189	}
1118		2190
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;	2192	db_sync;
1121	});	2193	});
1122		2194
1123	sub db_dirty() {	2195	sub db_dirty() {
1124	$dirty = 1;	2196	$dirty = 1;
…		…
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2227	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2228	or return;
1157		2229
1158	local $/;	2230	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2231	*CFG = YAML::Syck::Load <$fh>;
		2232
		2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2234
		2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2237
		2238	if (exists $CFG{mlockall}) {
		2239	eval {
		2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2241	and die "WARNING: m(un)lockall failed: $!\n";
		2242	};
		2243	warn $@ if $@;
		2244	}
1160	}	2245	}
1161		2246
1162	sub main {	2247	sub main {
		2248	# we must not ever block the main coroutine
		2249	local $Coro::idle = sub {
		2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2251	(async {
		2252	Event::one_event;
		2253	})->prio (Coro::PRIO_MAX);
		2254	};
		2255
1163	cfg_load;	2256	cfg_load;
1164	db_load;	2257	db_load;
1165	load_extensions;	2258	load_extensions;
		2259
		2260	$TICK_WATCHER->start;
1166	Event::loop;	2261	Event::loop;
1167	}	2262	}
1168		2263
1169	#############################################################################	2264	#############################################################################
1170	# initialisation	2265	# initialisation and cleanup
1171		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
		2308
1172	sub _perl_reload(&) {	2309	sub reload() {
1173	my ($msg) = @_;	2310	# can/must only be called in main
		2311	if ($Coro::current != $Coro::main) {
		2312	warn "can only reload from main coroutine";
		2313	return;
		2314	}
1174		2315
1175	$msg->("reloading...");	2316	warn "reloading...";
		2317
		2318	warn "cancelling server ticker";
		2319	$TICK_WATCHER->cancel;
		2320
		2321	cf::emergency_save;
1176		2322
1177	eval {	2323	eval {
1178	# cancel all watchers	2324	# if anything goes wrong in here, we should simply crash as we already saved
		2325
		2326	warn "syncing database to disk";
		2327	cf::db_sync;
		2328
		2329	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	2330	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2331	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2332	}
1182		2333
1183	# unload all extensions	2334	warn "flushing outstanding aio requests";
1184	for (@exts) {	2335	for (;;) {
1185	$msg->("unloading <$_>");	2336	IO::AIO::flush;
1186	unload_extension $_;	2337	Coro::cede;
		2338	last unless IO::AIO::nreqs;
		2339	warn "iterate...";
		2340	}
		2341
		2342	warn "cancelling all extension coros";
		2343	$_->cancel for values %EXT_CORO;
		2344	%EXT_CORO = ();
		2345
		2346	warn "removing commands";
		2347	%COMMAND = ();
		2348
		2349	warn "removing ext commands";
		2350	%EXTCMD = ();
		2351
		2352	warn "unloading/nuking all extensions";
		2353	for my $pkg (@EXTS) {
		2354	warn "... unloading $pkg";
		2355
		2356	if (my $cb = $pkg->can ("unload")) {
		2357	eval {
		2358	$cb->($pkg);
		2359	1
		2360	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2361	}
1188		2362
		2363	warn "... nuking $pkg";
		2364	Symbol::delete_package $pkg;
		2365	}
		2366
1189	# unload all modules loaded from $LIBDIR	2367	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2368	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2370
1193	$msg->("removing <$k>");	2371	warn "... unloading $k";
1194	delete $INC{$k};	2372	delete $INC{$k};
1195		2373
1196	$k =~ s/\.pm$//;	2374	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2375	$k =~ s/\//::/g;
1198		2376
…		…
1201	}	2379	}
1202		2380
1203	Symbol::delete_package $k;	2381	Symbol::delete_package $k;
1204	}	2382	}
1205		2383
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2384	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2385	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2387
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2388	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2389	delete $INC{"cf.pm"};
1218		2390
1219	# don't, removes xs symbols, too,	2391	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2392	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2393	#Symbol::delete_package __PACKAGE__;
1222		2394
1223	# reload cf.pm	2395	warn "unload completed, starting to reload now";
		2396
1224	$msg->("reloading cf.pm");	2397	warn "reloading cf.pm";
1225	require cf;	2398	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2400
1228	# load config and database again	2401	warn "loading config and database again";
1229	cf::cfg_load;	2402	cf::cfg_load;
1230	cf::db_load;	2403	cf::db_load;
1231		2404
1232	# load extensions	2405	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	2406	cf::load_extensions;
1235		2407
1236	# reattach attachments to objects	2408	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");
1238	_global_reattach;	2409	_global_reattach;
		2410	warn "reattaching attachments to maps";
		2411	reattach $_ for values %MAP;
		2412
		2413	warn "restarting server ticker";
		2414
		2415	$TICK_WATCHER->start;
1239	};	2416	};
1240	$msg->($@) if $@;
1241		2417
1242	$msg->("reloaded");	2418	if ($@) {
		2419	warn $@;
		2420	warn "error while reloading, exiting.";
		2421	exit 1;
		2422	}
		2423
		2424	warn "reloaded";
1243	};	2425	};
1244		2426
1245	sub perl_reload() {	2427	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {
1247	warn $_[0];
1248	print "$_[0]\n";
1249	};
1250	}
1251		2428
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	2429	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	2430	my ($who, $arg) = @_;
1256		2431
1257	if ($who->flag (FLAG_WIZ)) {	2432	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	2433	$who->message ("reloading server.");
1259	warn $_[0];	2434
1260	$who->message ($_[0]);	2435	# doing reload synchronously and two reloads happen back-to-back,
		2436	# coro crashes during coro_state_free->destroy here.
		2437
		2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
		2439	reload;
		2440	undef $RELOAD_WATCHER;
1261	};	2441	});
1262	}	2442	}
1263	};	2443	};
1264		2444
1265	unshift @INC, $LIBDIR;	2445	unshift @INC, $LIBDIR;
1266		2446
		2447	my $bug_warning = 0;
		2448
1267	$TICK_WATCHER = Event->timer (	2449	$TICK_WATCHER = Event->timer (
		2450	reentrant => 0,
		2451	parked => 1,
1268	prio => 0,	2452	prio => 0,
1269	at => $NEXT_TICK || 1,	2453	at => $NEXT_TICK || $TICK,
1270	data => WF_AUTOCANCEL,	2454	data => WF_AUTOCANCEL,
1271	cb => sub {	2455	cb => sub {
		2456	if ($Coro::current != $Coro::main) {
		2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2458	unless ++$bug_warning > 10;
		2459	return;
		2460	}
		2461
		2462	$NOW = Event::time;
		2463
1272	cf::server_tick; # one server iteration	2464	cf::server_tick; # one server iteration
1273		2465	$RUNTIME += $TICK;
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;	2466	$NEXT_TICK += $TICK;
1276		2467
		2468	$WAIT_FOR_TICK->broadcast;
		2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2470
1277	# if we are delayed by four ticks or more, skip them all	2471	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1279		2473
1280	$TICK_WATCHER->at ($NEXT_TICK);	2474	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	2475	$TICK_WATCHER->start;
1282	},	2476	},
1283	);	2477	);
1284		2478
1285	IO::AIO::max_poll_time $TICK * 0.2;	2479	IO::AIO::max_poll_time $TICK * 0.2;
1286		2480
		2481	$AIO_POLL_WATCHER = Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	2482	fd => IO::AIO::poll_fileno,
1288	poll => 'r',	2483	poll => 'r',
1289	prio => 5,	2484	prio => 5,
1290	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
1291	cb => \&IO::AIO::poll_cb);	2486	cb => \&IO::AIO::poll_cb,
		2487	);
		2488
		2489	$WRITE_RUNTIME_WATCHER = Event->timer (
		2490	data => WF_AUTOCANCEL,
		2491	after => 1,
		2492	interval => 10,
		2493	prio => 6, # keep it lowest so it acts like a watchdog
		2494	cb => Coro::unblock_sub {
		2495	write_runtime
		2496	or warn "ERROR: unable to write runtime file: $!";
		2497	},
		2498	);
		2499
		2500	END { cf::emergency_save }
1292		2501
1293	1	2502	1
1294		2503

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