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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.203 by root, Thu Feb 1 19:40:42 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 3.5 ();
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;
		87
		88	sub cf::map::normalise;
46		89
47	#############################################################################	90	#############################################################################
48		91
49	=head2 GLOBAL VARIABLES	92	=head2 GLOBAL VARIABLES
50		93
51	=over 4	94	=over 4
52		95
53	=item $cf::UPTIME	96	=item $cf::UPTIME
54		97
55	The timestamp of the server start (so not actually an uptime).	98	The timestamp of the server start (so not actually an uptime).
		99
		100	=item $cf::RUNTIME
		101
		102	The time this server has run, starts at 0 and is increased by $cf::TICK on
		103	every server tick.
56		104
57	=item $cf::LIBDIR	105	=item $cf::LIBDIR
58		106
59	The perl library directory, where extensions and cf-specific modules can	107	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	108	be found. It will be added to C<@INC> automatically.
61		109
		110	=item $cf::NOW
		111
		112	The time of the last (current) server tick.
		113
62	=item $cf::TICK	114	=item $cf::TICK
63		115
64	The interval between server ticks, in seconds.	116	The interval between server ticks, in seconds.
65		117
66	=item %cf::CFG	118	=item %cf::CFG
67		119
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	120	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	121	from wherever your confdir points to.
		122
		123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		124
		125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		127	processing has been done. Call C<< ->wait >> on them to maximise the
		128	window of cpu time available, or simply to synchronise to the server tick.
70		129
71	=back	130	=back
72		131
73	=cut	132	=cut
74		133
75	BEGIN {	134	BEGIN {
76	*CORE::GLOBAL::warn = sub {	135	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	136	my $msg = join "", @_;
		137	utf8::encode $msg;
		138
78	$msg .= "\n"	139	$msg .= "\n"
79	unless $msg =~ /\n$/;	140	unless $msg =~ /\n$/;
80		141
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	142	LOG llevError, $msg;
83	};	143	};
84	}	144	}
85		145
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		165
106	$Event::DIED = sub {	166	$Event::DIED = sub {
107	warn "error in event callback: @_";	167	warn "error in event callback: @_";
108	};	168	};
109		169
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	170	=head2 UTILITY FUNCTIONS
115		171
116	=over 4	172	=over 4
117		173
		174	=item dumpval $ref
		175
118	=cut	176	=cut
		177
		178	sub dumpval {
		179	eval {
		180	local $SIG{__DIE__};
		181	my $d;
		182	if (1) {
		183	$d = new Data::Dumper([$_[0]], ["*var"]);
		184	$d->Terse(1);
		185	$d->Indent(2);
		186	$d->Quotekeys(0);
		187	$d->Useqq(1);
		188	#$d->Bless(...);
		189	$d->Seen($_[1]) if @_ > 1;
		190	$d = $d->Dump();
		191	}
		192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		193	$d
		194	} || "[unable to dump $_[0]: '$@']";
		195	}
119		196
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	197	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		198
122	=item $ref = cf::from_json $json	199	=item $ref = cf::from_json $json
123		200
…		…
137	=cut	214	=cut
138		215
139	sub to_json($) {	216	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	218	JSON::Syck::Dump $_[0]
		219	}
		220
		221	=item cf::lock_wait $string
		222
		223	Wait until the given lock is available. See cf::lock_acquire.
		224
		225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	$WRITE_RUNTIME_WATCHER->start;
		269	};
		270	$WRITE_RUNTIME_WATCHER->stop;
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
		298	sub sync_job(&) {
		299	my ($job) = @_;
		300
		301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
		316	})->prio (Coro::PRIO_MAX);
		317
		318	while ($busy) {
		319	Coro::cede or Event::one_event;
		320	}
		321
		322	wantarray ? @res : $res[0]
		323	} else {
		324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
		327	}
		328	}
		329
		330	=item $coro = cf::async_ext { BLOCK }
		331
		332	Like async, but this coro is automatically being canceled when the
		333	extension calling this is being unloaded.
		334
		335	=cut
		336
		337	sub async_ext(&) {
		338	my $cb = shift;
		339
		340	my $coro = &Coro::async ($cb);
		341
		342	$coro->on_destroy (sub {
		343	delete $EXT_CORO{$coro+0};
		344	});
		345	$EXT_CORO{$coro+0} = $coro;
		346
		347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $runtime = cf::localdir . "/runtime";
		352
		353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		354	or return;
		355
		356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
		360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		361	and return;
		362
		363	aio_fsync $fh
		364	and return;
		365
		366	close $fh
		367	or return;
		368
		369	aio_rename "$runtime~", $runtime
		370	and return;
		371
		372	1
142	}	373	}
143		374
144	=back	375	=back
145		376
146	=cut	377	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	509	our @CB_MAP = ();
279		510
280	my %attachment;	511	my %attachment;
281		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
282	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
284		521
285	use sort 'stable';	522	use sort 'stable';
286		523
…		…
457	# object support	694	# object support
458		695
459	sub reattach {	696	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		701
463	my $registry = $obj->registry;	702	my $registry = $obj->registry;
464		703
465	@$registry = ();	704	@$registry = ();
466		705
…		…
505	);	744	);
506		745
507	sub object_freezer_save {	746	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	747	my ($filename, $rdata, $objs) = @_;
509		748
		749	sync_job {
510	if (length $$rdata) {	750	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	751	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	752	$filename, length $$rdata, scalar @$objs;
513		753
514	if (open my $fh, ">:raw", "$filename~") {	754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	755	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		757	aio_fsync $fh;
522	close $fh;	758	close $fh;
		759
		760	if (@$objs) {
		761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		762	chmod SAVE_MODE, $fh;
		763	my $data = Storable::nfreeze { version => 1, objs => $objs };
		764	aio_write $fh, 0, (length $data), $data, 0;
		765	aio_fsync $fh;
		766	close $fh;
523	rename "$filename.pst~", "$filename.pst";	767	aio_rename "$filename.pst~", "$filename.pst";
		768	}
		769	} else {
		770	aio_unlink "$filename.pst";
		771	}
		772
		773	aio_rename "$filename~", $filename;
524	} else {	774	} else {
525	unlink "$filename.pst";	775	warn "FATAL: $filename~: $!\n";
526	}	776	}
527
528	rename "$filename~", $filename;
529	} else {	777	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	778	aio_unlink $filename;
534	unlink "$filename.pst";	779	aio_unlink "$filename.pst";
		780	}
		781
		782	#d##TODO# nuke non .map-files if exist
		783	if ($filename =~ s/\.map$//) {
		784	aio_unlink $filename;
		785	aio_unlink "$filename.pst";
		786	}
535	}	787	}
536	}	788	}
537		789
538	sub object_freezer_as_string {	790	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	791	my ($rdata, $objs) = @_;
…		…
544	}	796	}
545		797
546	sub object_thawer_load {	798	sub object_thawer_load {
547	my ($filename) = @_;	799	my ($filename) = @_;
548		800
549	local $/;	801	my ($data, $av);
550		802
551	my $av;	803	#d#TODO remove .map if file does not exist
		804	aio_stat $filename and $filename =~ s/\.map$//;
552		805
553	#TODO: use sysread etc.	806	(aio_load $filename, $data) >= 0
554	if (open my $data, "<:raw:perlio", $filename) {	807	or return;
555	$data = <$data>;	808
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
		810	(aio_load "$filename.pst", $av) >= 0
		811	or return;
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
558	}	813	}
		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
559	return ($data, $av);	817	return ($data, $av);
560	}
561
562	()
563	}	818	}
564		819
565	#############################################################################	820	#############################################################################
566	# command handling &c	821	# command handling &c
567		822
…		…
591	=cut	846	=cut
592		847
593	sub register_extcmd {	848	sub register_extcmd {
594	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
595		850
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
600	}	852	}
601		853
602	cf::player->attach (	854	cf::player->attach (
603	on_command => sub {	855	on_command => sub {
604	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
617		869
618	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
619		871
620	if (ref $msg) {	872	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	876	}
625	}	877	}
626	} else {	878	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		881
630	cf::override;	882	cf::override;
631	},	883	},
632	);	884	);
633		885
634	sub register {
635	my ($base, $pkg) = @_;
636
637	#TODO
638	}
639
640	sub load_extension {	886	sub load_extension {
641	my ($path) = @_;	887	my ($path) = @_;
642		888
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
644	my $base = $1;	890	my $base = $1;
645	my $pkg = $1;	891	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
648		894
649	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
650		896
651	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
652	or die "$path: $!";	898	or die "$path: $!";
653		899
654	my $source =	900	my $source =
655	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
658	. "\n};\n1";	904	. "\n};\n1";
659		905
660	eval $source	906	unless (eval $source) {
661	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
662	: "extension disabled.\n";	908	: "extension disabled.\n";
663		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
664	push @exts, $pkg;	910	warn $@;
665	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
666		912	exit 1;
667	# no strict 'refs';	913	}
668	# @{"$pkg\::ISA"} = ext::;	914	die $@;
669
670	register $base, $pkg;
671	}
672
673	sub unload_extension {
674	my ($pkg) = @_;
675
676	warn "removing extension $pkg\n";
677
678	# remove hooks
679	#TODO
680	# for my $idx (0 .. $#PLUGIN_EVENT) {
681	# delete $hook[$idx]{$pkg};
682	# }	915	}
683		916
684	# remove commands	917	push @EXTS, $pkg;
685	for my $name (keys %COMMAND) {
686	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
687
688	if (@cb) {
689	$COMMAND{$name} = \@cb;
690	} else {
691	delete $COMMAND{$name};
692	}
693	}
694
695	# remove extcmds
696	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
697	delete $EXTCMD{$name};
698	}
699
700	if (my $cb = $pkg->can ("unload")) {
701	eval {
702	$cb->($pkg);
703	1
704	} or warn "$pkg unloaded, but with errors: $@";
705	}
706
707	Symbol::delete_package $pkg;
708	}	918	}
709		919
710	sub load_extensions {	920	sub load_extensions {
711	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
712	next unless -r $ext;	922	next unless -r $ext;
…		…
716	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
717	}	927	}
718	}	928	}
719		929
720	#############################################################################	930	#############################################################################
721	# load/save/clean perl data associated with a map
722		931
723	*cf::mapsupport::on_clean = sub {	932	=head2 CORE EXTENSIONS
		933
		934	Functions and methods that extend core crossfire objects.
		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
		942	=head3 cf::player
		943
		944	=over 4
		945
		946	=item cf::player::find $login
		947
		948	Returns the given player object, loading it if necessary (might block).
		949
		950	=cut
		951
		952	sub playerdir($) {
		953	cf::localdir
		954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
		1100	}
		1101
		1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1103
		1104	Sends an ext reply to the player.
		1105
		1106	=cut
		1107
		1108	sub ext_reply($$$%) {
		1109	my ($self, $id, %msg) = @_;
		1110
		1111	$msg{msgid} = $id;
		1112
		1113	$self->send ("ext " . cf::to_json \%msg);
		1114	}
		1115
		1116	package cf;
		1117
		1118	=back
		1119
		1120
		1121	=head3 cf::map
		1122
		1123	=over 4
		1124
		1125	=cut
		1126
		1127	package cf::map;
		1128
		1129	use Fcntl;
		1130	use Coro::AIO;
		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
		1136	our $MAX_RESET = 3600;
		1137	our $DEFAULT_RESET = 3000;
		1138
		1139	sub generate_random_map {
		1140	my ($self, $rmp) = @_;
		1141	# mit "rum" bekleckern, nicht
		1142	$self->_create_random_map (
		1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1146	$rmp->{exit_on_final_map},
		1147	$rmp->{xsize}, $rmp->{ysize},
		1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1284	}
		1285
		1286	# and all this just because we cannot iterate over
		1287	# all maps in C++...
		1288	sub change_all_map_light {
		1289	my ($change) = @_;
		1290
		1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
		1293	}
		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301
		1302	#d#TODO remove .map and also nuke
		1303	$save =~ s/\.map// or return;#d#
		1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1306	}
		1307
		1308	sub load_header_from($) {
		1309	my ($self, $path) = @_;
		1310
		1311	utf8::encode $path;
		1312	#aio_open $path, O_RDONLY, 0
		1313	# or return;
		1314
		1315	$self->_load_header ($path)
		1316	or return;
		1317
		1318	$self->{load_path} = $path;
		1319
		1320	1
		1321	}
		1322
		1323	sub load_header_orig {
		1324	my ($self) = @_;
		1325
		1326	$self->load_header_from ($self->load_path)
		1327	}
		1328
		1329	sub load_header_temp {
		1330	my ($self) = @_;
		1331
		1332	$self->load_header_from ($self->save_path)
		1333	}
		1334
		1335	sub prepare_temp {
		1336	my ($self) = @_;
		1337
		1338	$self->last_access ((delete $self->{last_access})
		1339	|| $cf::RUNTIME); #d#
		1340	# safety
		1341	$self->{instantiate_time} = $cf::RUNTIME
		1342	if $self->{instantiate_time} > $cf::RUNTIME;
		1343	}
		1344
		1345	sub prepare_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->{load_original} = 1;
		1349	$self->{instantiate_time} = $cf::RUNTIME;
		1350	$self->last_access ($cf::RUNTIME);
		1351	$self->instantiate;
		1352	}
		1353
		1354	sub load_header {
		1355	my ($self) = @_;
		1356
		1357	if ($self->load_header_temp) {
		1358	$self->prepare_temp;
		1359	} else {
		1360	$self->load_header_orig
		1361	or return;
		1362	$self->prepare_orig;
		1363	}
		1364
		1365	1
		1366	}
		1367
		1368	sub find;
		1369	sub find {
		1370	my ($path, $origin) = @_;
		1371
		1372	$path = normalise $path, $origin && $origin->path;
		1373
		1374	cf::lock_wait "map_find:$path";
		1375
		1376	$cf::MAP{$path} || do {
		1377	my $guard = cf::lock_acquire "map_find:$path";
		1378	my $map = new_from_path cf::map $path
		1379	or return;
		1380
		1381	$map->{last_save} = $cf::RUNTIME;
		1382
		1383	$map->load_header
		1384	or return;
		1385
		1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1387	# doing this can freeze the server in a sync job, obviously
		1388	#$cf::WAIT_FOR_TICK->wait;
		1389	$map->reset;
		1390	undef $guard;
		1391	return find $path;
		1392	}
		1393
		1394	$cf::MAP{$path} = $map
		1395	}
		1396	}
		1397
		1398	sub pre_load { }
		1399	sub post_load { }
		1400
		1401	sub load {
		1402	my ($self) = @_;
		1403
		1404	local $self->{deny_reset} = 1; # loading can take a long time
		1405
		1406	my $path = $self->{path};
		1407	my $guard = cf::lock_acquire "map_load:$path";
		1408
		1409	return if $self->in_memory != cf::MAP_SWAPPED;
		1410
		1411	$self->in_memory (cf::MAP_LOADING);
		1412
		1413	$self->alloc;
		1414
		1415	$self->pre_load;
		1416
		1417	$self->_load_objects ($self->{load_path}, 1)
		1418	or return;
		1419
		1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1421	if delete $self->{load_original};
		1422
		1423	if (my $uniq = $self->uniq_path) {
		1424	utf8::encode $uniq;
		1425	if (aio_open $uniq, O_RDONLY, 0) {
		1426	$self->clear_unique_items;
		1427	$self->_load_objects ($uniq, 0);
		1428	}
		1429	}
		1430
		1431	Coro::cede;
		1432
		1433	# now do the right thing for maps
		1434	$self->link_multipart_objects;
		1435
		1436	unless ($self->{deny_activate}) {
		1437	$self->decay_objects;
		1438	$self->fix_auto_apply;
		1439	$self->update_buttons;
		1440	Coro::cede;
		1441	$self->set_darkness_map;
		1442	$self->difficulty ($self->estimate_difficulty)
		1443	unless $self->difficulty;
		1444	Coro::cede;
		1445	$self->activate;
		1446	}
		1447
		1448	$self->post_load;
		1449
		1450	$self->in_memory (cf::MAP_IN_MEMORY);
		1451	}
		1452
		1453	sub customise_for {
		1454	my ($self, $ob) = @_;
		1455
		1456	return find "~" . $ob->name . "/" . $self->{path}
		1457	if $self->per_player;
		1458
		1459	$self
		1460	}
		1461
		1462	# find and load all maps in the 3x3 area around a map
		1463	sub load_diag {
724	my ($map) = @_;	1464	my ($map) = @_;
725		1465
726	my $path = $map->tmpname;	1466	my @diag; # diagonal neighbours
727	defined $path or return;
728		1467
729	unlink "$path.pst";	1468	for (0 .. 3) {
730	};	1469	my $neigh = $map->tile_path ($_)
		1470	or next;
		1471	$neigh = find $neigh, $map
		1472	or next;
		1473	$neigh->load;
731		1474
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1477	}
733		1478
734	#############################################################################	1479	for (@diag) {
735	# load/save perl data associated with player->ob objects	1480	my $neigh = find @$_
736		1481	or next;
737	sub all_objects(@) {	1482	$neigh->load;
738	@_, map all_objects ($_->inv), @_	1483	}
739	}	1484	}
740		1485
741	# TODO: compatibility cruft, remove when no longer needed	1486	sub find_sync {
742	cf::player->attach (	1487	my ($path, $origin) = @_;
743	on_load => sub {
744	my ($pl, $path) = @_;
745		1488
746	for my $o (all_objects $pl->ob) {	1489	cf::sync_job { find $path, $origin }
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1490	}
748	$o->set_ob_key_value ("_perl_data");
749		1491
750	%$o = %{ Storable::thaw pack "H*", $value };	1492	sub do_load_sync {
		1493	my ($map) = @_;
		1494
		1495	cf::sync_job { $map->load };
		1496	}
		1497
		1498	our %MAP_PREFETCH;
		1499	our $MAP_PREFETCHER = undef;
		1500
		1501	sub find_async {
		1502	my ($path, $origin) = @_;
		1503
		1504	$path = normalise $path, $origin && $origin->{path};
		1505
		1506	if (my $map = $cf::MAP{$path}) {
		1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1508	}
		1509
		1510	undef $MAP_PREFETCH{$path};
		1511	$MAP_PREFETCHER ||= cf::async {
		1512	while (%MAP_PREFETCH) {
		1513	for my $path (keys %MAP_PREFETCH) {
		1514	my $map = find $path
		1515	or next;
		1516	$map->load;
		1517
		1518	delete $MAP_PREFETCH{$path};
751	}	1519	}
752	}	1520	}
		1521	undef $MAP_PREFETCHER;
		1522	};
		1523	$MAP_PREFETCHER->prio (6);
		1524
		1525	()
		1526	}
		1527
		1528	sub save {
		1529	my ($self) = @_;
		1530
		1531	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1532
		1533	$self->{last_save} = $cf::RUNTIME;
		1534
		1535	return unless $self->dirty;
		1536
		1537	my $save = $self->save_path; utf8::encode $save;
		1538	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1539
		1540	$self->{load_path} = $save;
		1541
		1542	return if $self->{deny_save};
		1543
		1544	local $self->{last_access} = $self->last_access;#d#
		1545
		1546	cf::async {
		1547	$_->contr->save for $self->players;
		1548	};
		1549
		1550	if ($uniq) {
		1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1553	} else {
		1554	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
753	},	1555	}
754	);	1556	}
755		1557
756	#############################################################################	1558	sub swap_out {
		1559	my ($self) = @_;
757		1560
758	=head2 CORE EXTENSIONS	1561	# save first because save cedes
		1562	$self->save;
759		1563
760	Functions and methods that extend core crossfire objects.	1564	my $lock = cf::lock_acquire "map_data:" . $self->path;
761		1565
762	=head3 cf::player	1566	return if $self->players;
		1567	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1568	return if $self->{deny_save};
		1569
		1570	$self->clear;
		1571	$self->in_memory (cf::MAP_SWAPPED);
		1572	}
		1573
		1574	sub reset_at {
		1575	my ($self) = @_;
		1576
		1577	# TODO: safety, remove and allow resettable per-player maps
		1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1579	return 1e99 if $self->{deny_reset};
		1580
		1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1583
		1584	$time + $to
		1585	}
		1586
		1587	sub should_reset {
		1588	my ($self) = @_;
		1589
		1590	$self->reset_at <= $cf::RUNTIME
		1591	}
		1592
		1593	sub reset {
		1594	my ($self) = @_;
		1595
		1596	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1597
		1598	return if $self->players;
		1599	return if $self->isa ("ext::map_per_player");#d#
		1600
		1601	warn "resetting map ", $self->path;#d#
		1602
		1603	delete $cf::MAP{$self->path};
		1604
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	$self->clear;
		1607
		1608	$_->clear_links_to ($self) for values %cf::MAP;
		1609
		1610	$self->unlink_save;
		1611	$self->destroy;
		1612	}
		1613
		1614	my $nuke_counter = "aaaa";
		1615
		1616	sub nuke {
		1617	my ($self) = @_;
		1618
		1619	delete $cf::MAP{$self->path};
		1620
		1621	$self->unlink_save;
		1622
		1623	bless $self, "cf::map";
		1624	delete $self->{deny_reset};
		1625	$self->{deny_save} = 1;
		1626	$self->reset_timeout (1);
		1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1628
		1629	$cf::MAP{$self->path} = $self;
		1630
		1631	$self->reset; # polite request, might not happen
		1632	}
		1633
		1634	=item cf::map::unique_maps
		1635
		1636	Returns an arrayref of paths of all shared maps that have
		1637	instantiated unique items. May block.
		1638
		1639	=cut
		1640
		1641	sub unique_maps() {
		1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1643	or return;
		1644
		1645	my @paths;
		1646
		1647	for (@$files) {
		1648	utf8::decode $_;
		1649	next if /\.pst$/;
		1650	next unless /^$PATH_SEP/o;
		1651
		1652	push @paths, cf::map::normalise $_;
		1653	}
		1654
		1655	\@paths
		1656	}
		1657
		1658	package cf;
		1659
		1660	=back
		1661
		1662	=head3 cf::object
		1663
		1664	=cut
		1665
		1666	package cf::object;
763		1667
764	=over 4	1668	=over 4
765		1669
766	=item cf::player::exists $login	1670	=item $ob->inv_recursive
767		1671
768	Returns true when the given account exists.	1672	Returns the inventory of the object _and_ their inventories, recursively.
769		1673
770	=cut	1674	=cut
771		1675
772	sub cf::player::exists($) {	1676	sub inv_recursive_;
773	cf::player::find $_[0]	1677	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1678	map { $_, inv_recursive_ $_->inv } @_
775	}	1679	}
776		1680
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1681	sub inv_recursive {
778		1682	inv_recursive_ inv $_[0]
779	Sends an ext reply to the player.
780
781	=cut
782
783	sub cf::player::ext_reply($$$%) {
784	my ($self, $id, %msg) = @_;
785
786	$msg{msgid} = $id;
787
788	$self->send ("ext " . to_json \%msg);
789	}	1683	}
		1684
		1685	package cf;
790		1686
791	=back	1687	=back
792		1688
793	=head3 cf::object::player	1689	=head3 cf::object::player
794		1690
…		…
832	(ref $cf::CFG{"may_$access"}	1728	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1729	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1730	: $cf::CFG{"may_$access"})
835	}	1731	}
836		1732
		1733	=item $player_object->enter_link
		1734
		1735	Freezes the player and moves him/her to a special map (C<{link}>).
		1736
		1737	The player should be reasonably safe there for short amounts of time. You
		1738	I<MUST> call C<leave_link> as soon as possible, though.
		1739
		1740	Will never block.
		1741
		1742	=item $player_object->leave_link ($map, $x, $y)
		1743
		1744	Moves the player out of the special C<{link}> map onto the specified
		1745	map. If the map is not valid (or omitted), the player will be moved back
		1746	to the location he/she was before the call to C<enter_link>, or, if that
		1747	fails, to the emergency map position.
		1748
		1749	Might block.
		1750
		1751	=cut
		1752
		1753	sub link_map {
		1754	unless ($LINK_MAP) {
		1755	$LINK_MAP = cf::map::find "{link}"
		1756	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1757	$LINK_MAP->load;
		1758	}
		1759
		1760	$LINK_MAP
		1761	}
		1762
		1763	sub cf::object::player::enter_link {
		1764	my ($self) = @_;
		1765
		1766	$self->deactivate_recursive;
		1767
		1768	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1769
		1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1771	if $self->map;
		1772
		1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1774	}
		1775
		1776	sub cf::object::player::leave_link {
		1777	my ($self, $map, $x, $y) = @_;
		1778
		1779	my $link_pos = delete $self->{_link_pos};
		1780
		1781	unless ($map) {
		1782	# restore original map position
		1783	($map, $x, $y) = @{ $link_pos || [] };
		1784	$map = cf::map::find $map;
		1785
		1786	unless ($map) {
		1787	($map, $x, $y) = @$EMERGENCY_POSITION;
		1788	$map = cf::map::find $map
		1789	or die "FATAL: cannot load emergency map\n";
		1790	}
		1791	}
		1792
		1793	($x, $y) = (-1, -1)
		1794	unless (defined $x) && (defined $y);
		1795
		1796	# use -1 or undef as default coordinates, not 0, 0
		1797	($x, $y) = ($map->enter_x, $map->enter_y)
		1798	if $x <=0 && $y <= 0;
		1799
		1800	$map->load;
		1801	$map->load_diag;
		1802
		1803	return unless $self->contr->active;
		1804	$self->activate_recursive;
		1805	$self->enter_map ($map, $x, $y);
		1806	}
		1807
		1808	cf::player->attach (
		1809	on_logout => sub {
		1810	my ($pl) = @_;
		1811
		1812	# abort map switching before logout
		1813	if ($pl->ob->{_link_pos}) {
		1814	cf::sync_job {
		1815	$pl->ob->leave_link
		1816	};
		1817	}
		1818	},
		1819	on_login => sub {
		1820	my ($pl) = @_;
		1821
		1822	# try to abort aborted map switching on player login :)
		1823	# should happen only on crashes
		1824	if ($pl->ob->{_link_pos}) {
		1825	$pl->ob->enter_link;
		1826	(async {
		1827	# we need this sleep as the login has a concurrent enter_exit running
		1828	# and this sleep increases chances of the player not ending up in scorn
		1829	$pl->ob->reply (undef,
		1830	"There was an internal problem at your last logout, "
		1831	. "the server will try to bring you to your intended destination in a second.",
		1832	cf::NDI_RED);
		1833	Coro::Timer::sleep 1;
		1834	$pl->ob->leave_link;
		1835	})->prio (2);
		1836	}
		1837	},
		1838	);
		1839
		1840	=item $player_object->goto ($path, $x, $y)
		1841
		1842	=cut
		1843
		1844	sub cf::object::player::goto {
		1845	my ($self, $path, $x, $y) = @_;
		1846
		1847	$self->enter_link;
		1848
		1849	(async {
		1850	my $map = eval {
		1851	my $map = cf::map::find $path;
		1852	$map = $map->customise_for ($self) if $map;
		1853	$map
		1854	} or
		1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1856
		1857	$self->leave_link ($map, $x, $y);
		1858	})->prio (1);
		1859	}
		1860
		1861	=item $player_object->enter_exit ($exit_object)
		1862
		1863	=cut
		1864
		1865	sub parse_random_map_params {
		1866	my ($spec) = @_;
		1867
		1868	my $rmp = { # defaults
		1869	xsize => (cf::rndm 15, 40),
		1870	ysize => (cf::rndm 15, 40),
		1871	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1872	#layout => string,
		1873	};
		1874
		1875	for (split /\n/, $spec) {
		1876	my ($k, $v) = split /\s+/, $_, 2;
		1877
		1878	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1879	}
		1880
		1881	$rmp
		1882	}
		1883
		1884	sub prepare_random_map {
		1885	my ($exit) = @_;
		1886
		1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1888
		1889	# all this does is basically replace the /! path by
		1890	# a new random map path (?random/...) with a seed
		1891	# that depends on the exit object
		1892
		1893	my $rmp = parse_random_map_params $exit->msg;
		1894
		1895	if ($exit->map) {
		1896	$rmp->{region} = $exit->region->name;
		1897	$rmp->{origin_map} = $exit->map->path;
		1898	$rmp->{origin_x} = $exit->x;
		1899	$rmp->{origin_y} = $exit->y;
		1900	}
		1901
		1902	$rmp->{random_seed} ||= $exit->random_seed;
		1903
		1904	my $data = cf::to_json $rmp;
		1905	my $md5 = Digest::MD5::md5_hex $data;
		1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1907
		1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1909	aio_write $fh, 0, (length $data), $data, 0;
		1910	undef $fh;
		1911	aio_rename "$meta~", $meta;
		1912
		1913	$exit->slaying ("?random/$md5");
		1914	$exit->msg (undef);
		1915	}
		1916	}
		1917
		1918	sub cf::object::player::enter_exit {
		1919	my ($self, $exit) = @_;
		1920
		1921	return unless $self->type == cf::PLAYER;
		1922
		1923	if ($exit->slaying eq "/!") {
		1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1925	cf::sync_job { prepare_random_map $exit };
		1926	}
		1927
		1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1929	my $hp = $exit->stats->hp;
		1930	my $sp = $exit->stats->sp;
		1931
		1932	$self->enter_link;
		1933
		1934	(async {
		1935	$self->deactivate_recursive; # just to be sure
		1936	unless (eval {
		1937	$self->goto ($slaying, $hp, $sp);
		1938
		1939	1;
		1940	}) {
		1941	$self->message ("Something went wrong deep within the crossfire server. "
		1942	. "I'll try to bring you back to the map you were before. "
		1943	. "Please report this to the dungeon master!",
		1944	cf::NDI_UNIQUE | cf::NDI_RED);
		1945
		1946	warn "ERROR in enter_exit: $@";
		1947	$self->leave_link;
		1948	}
		1949	})->prio (1);
		1950	}
		1951
837	=head3 cf::client	1952	=head3 cf::client
838		1953
839	=over 4	1954	=over 4
840		1955
841	=item $client->send_drawinfo ($text, $flags)	1956	=item $client->send_drawinfo ($text, $flags)
…		…
884	on_reply => sub {	1999	on_reply => sub {
885	my ($ns, $msg) = @_;	2000	my ($ns, $msg) = @_;
886		2001
887	# this weird shuffling is so that direct followup queries	2002	# this weird shuffling is so that direct followup queries
888	# get handled first	2003	# get handled first
889	my $queue = delete $ns->{query_queue};	2004	my $queue = delete $ns->{query_queue}
		2005	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		2006
891	(shift @$queue)->[1]->($msg);	2007	(shift @$queue)->[1]->($msg);
		2008	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
892		2009
893	push @{ $ns->{query_queue} }, @$queue;	2010	push @{ $ns->{query_queue} }, @$queue;
894		2011
895	if (@{ $ns->{query_queue} } == @$queue) {	2012	if (@{ $ns->{query_queue} } == @$queue) {
896	if (@$queue) {	2013	if (@$queue) {
…		…
900	}	2017	}
901	}	2018	}
902	},	2019	},
903	);	2020	);
904		2021
905	=item $client->coro (\&cb)	2022	=item $client->async (\&cb)
906		2023
907	Create a new coroutine, running the specified callback. The coroutine will	2024	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	2025	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	2026	or loss of connection).
910		2027
911	=cut	2028	=cut
912		2029
913	sub cf::client::coro {	2030	sub cf::client::async {
914	my ($self, $cb) = @_;	2031	my ($self, $cb) = @_;
915		2032
916	my $coro; $coro = async {	2033	my $coro = &Coro::async ($cb);
917	eval {	2034
918	$cb->();	2035	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	2036	delete $self->{_coro}{$coro+0};
922	};	2037	});
923		2038
924	$self->{_coro}{$coro+0} = $coro;	2039	$self->{_coro}{$coro+0} = $coro;
		2040
		2041	$coro
925	}	2042	}
926		2043
927	cf::client->attach (	2044	cf::client->attach (
928	on_destroy => sub {	2045	on_destroy => sub {
929	my ($ns) = @_;	2046	my ($ns) = @_;
…		…
1093		2210
1094	{	2211	{
1095	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
1096		2213
1097	sub db_load() {	2214	sub db_load() {
1098	warn "loading database $path\n";#d# remove later
1099	$DB = stat $path ? Storable::retrieve $path : { };	2215	$DB = stat $path ? Storable::retrieve $path : { };
1100	}	2216	}
1101		2217
1102	my $pid;	2218	my $pid;
1103		2219
1104	sub db_save() {	2220	sub db_save() {
1105	warn "saving database $path\n";#d# remove later
1106	waitpid $pid, 0 if $pid;	2221	waitpid $pid, 0 if $pid;
1107	if (0 == ($pid = fork)) {	2222	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;	2223	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";	2224	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;	2225	rename "$path~", $path;
…		…
1117	sub db_sync() {	2232	sub db_sync() {
1118	db_save if $dirty;	2233	db_save if $dirty;
1119	undef $dirty;	2234	undef $dirty;
1120	}	2235	}
1121		2236
1122	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2237	my $idle = Event->idle (
1123	db_sync;	2238	reentrant => 0,
		2239	min => 10,
		2240	max => 20,
		2241	repeat => 0,
		2242	data => WF_AUTOCANCEL,
		2243	cb => \&db_sync,
1124	});	2244	);
1125		2245
1126	sub db_dirty() {	2246	sub db_dirty() {
1127	$dirty = 1;	2247	$dirty = 1;
1128	$idle->start;	2248	$idle->start;
1129	}	2249	}
…		…
1150	},	2270	},
1151	);	2271	);
1152	}	2272	}
1153		2273
1154	#############################################################################	2274	#############################################################################
1155	# the server's main()	2275	# the server's init and main functions
		2276
		2277	sub load_resources {
		2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2279	or die "unable to load regions file\n";#d#
		2280	}
1156		2281
1157	sub cfg_load {	2282	sub cfg_load {
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2283	open my $fh, "<:utf8", cf::confdir . "/config"
1159	or return;	2284	or return;
1160		2285
1161	local $/;	2286	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2287	*CFG = YAML::Syck::Load <$fh>;
		2288
		2289	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2290
		2291	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2292	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2293
		2294	if (exists $CFG{mlockall}) {
		2295	eval {
		2296	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2297	and die "WARNING: m(un)lockall failed: $!\n";
		2298	};
		2299	warn $@ if $@;
		2300	}
		2301	}
		2302
		2303	sub init {
		2304	load_resources;
1163	}	2305	}
1164		2306
1165	sub main {	2307	sub main {
		2308	# we must not ever block the main coroutine
		2309	local $Coro::idle = sub {
		2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2311	(async {
		2312	Event::one_event;
		2313	})->prio (Coro::PRIO_MAX);
		2314	};
		2315
1166	cfg_load;	2316	cfg_load;
1167	db_load;	2317	db_load;
1168	load_extensions;	2318	load_extensions;
		2319
		2320	$TICK_WATCHER->start;
1169	Event::loop;	2321	Event::loop;
1170	}	2322	}
1171		2323
1172	#############################################################################	2324	#############################################################################
1173	# initialisation	2325	# initialisation and cleanup
1174		2326
		2327	# install some emergency cleanup handlers
		2328	BEGIN {
		2329	for my $signal (qw(INT HUP TERM)) {
		2330	Event->signal (
		2331	reentrant => 0,
		2332	data => WF_AUTOCANCEL,
		2333	signal => $signal,
		2334	prio => 0,
		2335	cb => sub {
		2336	cf::cleanup "SIG$signal";
		2337	},
		2338	);
		2339	}
		2340	}
		2341
		2342	sub emergency_save() {
		2343	my $freeze_guard = cf::freeze_mainloop;
		2344
		2345	warn "enter emergency perl save\n";
		2346
		2347	cf::sync_job {
		2348	# use a peculiar iteration method to avoid tripping on perl
		2349	# refcount bugs in for. also avoids problems with players
		2350	# and maps saved/destroyed asynchronously.
		2351	warn "begin emergency player save\n";
		2352	for my $login (keys %cf::PLAYER) {
		2353	my $pl = $cf::PLAYER{$login} or next;
		2354	$pl->valid or next;
		2355	$pl->save;
		2356	}
		2357	warn "end emergency player save\n";
		2358
		2359	warn "begin emergency map save\n";
		2360	for my $path (keys %cf::MAP) {
		2361	my $map = $cf::MAP{$path} or next;
		2362	$map->valid or next;
		2363	$map->save;
		2364	}
		2365	warn "end emergency map save\n";
		2366	};
		2367
		2368	warn "leave emergency perl save\n";
		2369	}
		2370
1175	sub _perl_reload(&) {	2371	sub reload() {
1176	my ($msg) = @_;	2372	# can/must only be called in main
		2373	if ($Coro::current != $Coro::main) {
		2374	warn "can only reload from main coroutine";
		2375	return;
		2376	}
1177		2377
1178	$msg->("reloading...");	2378	warn "reloading...";
		2379
		2380	warn "cancelling server ticker";
		2381	$TICK_WATCHER->cancel;
		2382
		2383	cf::emergency_save;
1179		2384
1180	eval {	2385	eval {
1181	# cancel all watchers	2386	# if anything goes wrong in here, we should simply crash as we already saved
		2387
		2388	warn "syncing database to disk";
		2389	cf::db_sync;
		2390
		2391	warn "cancelling all WF_AUTOCANCEL watchers";
1182	for (Event::all_watchers) {	2392	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2393	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2394	}
1185		2395
1186	# unload all extensions	2396	warn "flushing outstanding aio requests";
1187	for (@exts) {	2397	for (;;) {
1188	$msg->("unloading <$_>");	2398	IO::AIO::flush;
1189	unload_extension $_;	2399	Coro::cede;
		2400	last unless IO::AIO::nreqs;
		2401	warn "iterate...";
		2402	}
		2403
		2404	warn "cancelling all extension coros";
		2405	$_->cancel for values %EXT_CORO;
		2406	%EXT_CORO = ();
		2407
		2408	warn "removing commands";
		2409	%COMMAND = ();
		2410
		2411	warn "removing ext commands";
		2412	%EXTCMD = ();
		2413
		2414	warn "unloading/nuking all extensions";
		2415	for my $pkg (@EXTS) {
		2416	warn "... unloading $pkg";
		2417
		2418	if (my $cb = $pkg->can ("unload")) {
		2419	eval {
		2420	$cb->($pkg);
		2421	1
		2422	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2423	}
1191		2424
		2425	warn "... nuking $pkg";
		2426	Symbol::delete_package $pkg;
		2427	}
		2428
1192	# unload all modules loaded from $LIBDIR	2429	warn "unloading all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2430	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2431	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2432
1196	$msg->("removing <$k>");	2433	warn "... unloading $k";
1197	delete $INC{$k};	2434	delete $INC{$k};
1198		2435
1199	$k =~ s/\.pm$//;	2436	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2437	$k =~ s/\//::/g;
1201		2438
…		…
1204	}	2441	}
1205		2442
1206	Symbol::delete_package $k;	2443	Symbol::delete_package $k;
1207	}	2444	}
1208		2445
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2446	warn "getting rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2447	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2449
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2450	warn "unloading cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2451	delete $INC{"cf.pm"};
1221		2452
1222	# don't, removes xs symbols, too,	2453	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2454	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2455	#Symbol::delete_package __PACKAGE__;
1225		2456
1226	# reload cf.pm	2457	warn "unload completed, starting to reload now";
		2458
1227	$msg->("reloading cf.pm");	2459	warn "reloading cf.pm";
1228	require cf;	2460	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2462
1231	# load config and database again	2463	warn "loading config and database again";
1232	cf::cfg_load;	2464	cf::cfg_load;
1233	cf::db_load;	2465	cf::db_load;
1234		2466
1235	# load extensions	2467	warn "loading extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2468	cf::load_extensions;
1238		2469
1239	# reattach attachments to objects	2470	warn "reattaching attachments to objects/players";
1240	$msg->("reattach");
1241	_global_reattach;	2471	_global_reattach;
		2472	warn "reattaching attachments to maps";
		2473	reattach $_ for values %MAP;
		2474
		2475	warn "loading reloadable resources";
		2476	load_resources;
		2477
		2478	warn "restarting server ticker";
		2479
		2480	$TICK_WATCHER->start;
1242	};	2481	};
1243	$msg->($@) if $@;
1244		2482
1245	$msg->("reloaded");	2483	if ($@) {
		2484	warn $@;
		2485	warn "error while reloading, exiting.";
		2486	exit 1;
		2487	}
		2488
		2489	warn "reloaded";
1246	};	2490	};
1247		2491
1248	sub perl_reload() {	2492	our $RELOAD_WATCHER; # used only during reload
1249	_perl_reload {
1250	warn $_[0];
1251	print "$_[0]\n";
1252	};
1253	}
1254		2493
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2494	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2495	my ($who, $arg) = @_;
1259		2496
1260	if ($who->flag (FLAG_WIZ)) {	2497	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2498	$who->message ("reloading server.");
1262	warn $_[0];	2499
1263	$who->message ($_[0]);	2500	# doing reload synchronously and two reloads happen back-to-back,
		2501	# coro crashes during coro_state_free->destroy here.
		2502
		2503	$RELOAD_WATCHER ||= Event->timer (
		2504	reentrant => 0,
		2505	after => 0,
		2506	data => WF_AUTOCANCEL,
		2507	cb => sub {
		2508	reload;
		2509	undef $RELOAD_WATCHER;
		2510	},
1264	};	2511	);
1265	}	2512	}
1266	};	2513	};
1267		2514
1268	unshift @INC, $LIBDIR;	2515	unshift @INC, $LIBDIR;
1269		2516
		2517	my $bug_warning = 0;
		2518
1270	$TICK_WATCHER = Event->timer (	2519	$TICK_WATCHER = Event->timer (
		2520	reentrant => 0,
		2521	parked => 1,
1271	prio => 0,	2522	prio => 0,
1272	at => $NEXT_TICK || 1,	2523	at => $NEXT_TICK || $TICK,
1273	data => WF_AUTOCANCEL,	2524	data => WF_AUTOCANCEL,
1274	cb => sub {	2525	cb => sub {
		2526	if ($Coro::current != $Coro::main) {
		2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2528	unless ++$bug_warning > 10;
		2529	return;
		2530	}
		2531
		2532	$NOW = Event::time;
		2533
1275	cf::server_tick; # one server iteration	2534	cf::server_tick; # one server iteration
1276		2535	$RUNTIME += $TICK;
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2536	$NEXT_TICK += $TICK;
1279		2537
		2538	$WAIT_FOR_TICK->broadcast;
		2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2540
		2541	Event::sweep;
		2542	Coro::cede_notself;
		2543
		2544	# my $AFTER = Event::time;
		2545	# warn $AFTER - $NOW;#d#
		2546
1280	# if we are delayed by four ticks or more, skip them all	2547	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2549
1283	$TICK_WATCHER->at ($NEXT_TICK);	2550	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2551	$TICK_WATCHER->start;
1285	},	2552	},
1286	);	2553	);
1287		2554
1288	IO::AIO::max_poll_time $TICK * 0.2;	2555	IO::AIO::max_poll_time $TICK * 0.1;
1289		2556
		2557	undef $Coro::AIO::WATCHER;
		2558	$AIO_POLL_WATCHER = Event->io (
		2559	reentrant => 0,
1290	Event->io (fd => IO::AIO::poll_fileno,	2560	fd => IO::AIO::poll_fileno,
1291	poll => 'r',	2561	poll => 'r',
1292	prio => 5,	2562	prio => 6,
1293	data => WF_AUTOCANCEL,	2563	data => WF_AUTOCANCEL,
1294	cb => \&IO::AIO::poll_cb);	2564	cb => \&IO::AIO::poll_cb,
		2565	);
		2566
		2567	$WRITE_RUNTIME_WATCHER = Event->timer (
		2568	reentrant => 0,
		2569	data => WF_AUTOCANCEL,
		2570	after => 1,
		2571	interval => 10,
		2572	prio => 6, # keep it lowest so it acts like a watchdog
		2573	cb => Coro::unblock_sub {
		2574	write_runtime
		2575	or warn "ERROR: unable to write runtime file: $!";
		2576	},
		2577	);
		2578
		2579	END { cf::emergency_save }
1295		2580
1296	1	2581	1
1297		2582

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