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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.98 by root, Fri Dec 22 16:34:00 2006 UTC vs.
Revision 1.174 by root, Sun Jan 14 19:55:37 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 3.3 ();
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
19	use IO::AIO;	18	use Coro::AIO;
		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
		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 = ();
35		41	our %EXT_CORO = (); # coroutines bound to extensions
36	_init_vars;	42	our %EXT_MAP = (); # pluggable maps
37		43
38	our @EVENT;	44	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
40		46
41	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
44		53
45	our %CFG;	54	our %CFG;
46		55
47	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;
48		87
49	#############################################################################	88	#############################################################################
50		89
51	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
52		91
53	=over 4	92	=over 4
54		93
55	=item $cf::UPTIME	94	=item $cf::UPTIME
56		95
57	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.
58		102
59	=item $cf::LIBDIR	103	=item $cf::LIBDIR
60		104
61	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
62	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
63		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
64	=item $cf::TICK	112	=item $cf::TICK
65		113
66	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
67		115
68	=item %cf::CFG	116	=item %cf::CFG
69		117
70	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
71	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.
72		127
73	=back	128	=back
74		129
75	=cut	130	=cut
76		131
77	BEGIN {	132	BEGIN {
78	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
79	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
80	$msg .= "\n"	137	$msg .= "\n"
81	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
82		139
83	print STDERR "cfperl: $msg";
84	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
85	};	141	};
86	}	142	}
87		143
88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
94		150
95	# we bless all objects into (empty) derived classes to force a method lookup	151	# we bless all objects into (empty) derived classes to force a method lookup
96	# within the Safe compartment.	152	# within the Safe compartment.
97	for my $pkg (qw(	153	for my $pkg (qw(
98	cf::global	154	cf::global cf::attachable
99	cf::object cf::object::player	155	cf::object cf::object::player
100	cf::client cf::player	156	cf::client cf::player
101	cf::arch cf::living	157	cf::arch cf::living
102	cf::map cf::party cf::region	158	cf::map cf::party cf::region
103	)) {	159	)) {
…		…
107		163
108	$Event::DIED = sub {	164	$Event::DIED = sub {
109	warn "error in event callback: @_";	165	warn "error in event callback: @_";
110	};	166	};
111		167
112	my %ext_pkg;
113	my @exts;
114	my @hook;
115
116	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
117		169
118	=over 4	170	=over 4
119		171
		172	=item dumpval $ref
		173
120	=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	}
121		194
122	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
123		196
124	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
125		198
…		…
139	=cut	212	=cut
140		213
141	sub to_json($) {	214	sub to_json($) {
142	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
143	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 + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		356	and return;
		357
		358	aio_fsync $fh
		359	and return;
		360
		361	close $fh
		362	or return;
		363
		364	aio_rename "$runtime~", $runtime
		365	and return;
		366
		367	1
144	}	368	}
145		369
146	=back	370	=back
147		371
148	=cut	372	=cut
…		…
269	exception.	493	exception.
270		494
271	=cut	495	=cut
272		496
273	# the following variables are defined in .xs and must not be re-created	497	# the following variables are defined in .xs and must not be re-created
274	our @CB_GLOBAL = (); # registry for all global events	498	our @CB_GLOBAL = (); # registry for all global events
		499	our @CB_ATTACHABLE = (); # registry for all attachables
275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	500	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
276	our @CB_PLAYER = ();	501	our @CB_PLAYER = ();
277	our @CB_CLIENT = ();	502	our @CB_CLIENT = ();
278	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
279	our @CB_MAP = ();	504	our @CB_MAP = ();
280		505
281	my %attachment;	506	my %attachment;
		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
282		513
283	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
284	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
285		516
286	use sort 'stable';	517	use sort 'stable';
…		…
289		520
290	@{$registry->[$event]} = sort	521	@{$registry->[$event]} = sort
291	{ $a->[0] cmp $b->[0] }	522	{ $a->[0] cmp $b->[0] }
292	@{$registry->[$event] || []}, $cb;	523	@{$registry->[$event] || []}, $cb;
293	}	524	}
		525
		526	# hack
		527	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
294		528
295	# attach handles attaching event callbacks	529	# attach handles attaching event callbacks
296	# the only thing the caller has to do is pass the correct	530	# the only thing the caller has to do is pass the correct
297	# registry (== where the callback attaches to).	531	# registry (== where the callback attaches to).
298	sub _attach {	532	sub _attach {
…		…
300		534
301	my $object_type;	535	my $object_type;
302	my $prio = 0;	536	my $prio = 0;
303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	537	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
304		538
		539	#TODO: get rid of this hack
		540	if ($attachable_klass{$klass}) {
		541	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		542	}
		543
305	while (@arg) {	544	while (@arg) {
306	my $type = shift @arg;	545	my $type = shift @arg;
307		546
308	if ($type eq "prio") {	547	if ($type eq "prio") {
309	$prio = shift @arg;	548	$prio = shift @arg;
…		…
384	my ($obj, $name) = @_;	623	my ($obj, $name) = @_;
385		624
386	exists $obj->{_attachment}{$name}	625	exists $obj->{_attachment}{$name}
387	}	626	}
388		627
389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	628	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
390	eval "#line " . __LINE__ . " 'cf.pm'	629	eval "#line " . __LINE__ . " 'cf.pm'
391	sub cf::\L$klass\E::_attach_registry {	630	sub cf::\L$klass\E::_attach_registry {
392	(\\\@CB_$klass, KLASS_$klass)	631	(\\\@CB_$klass, KLASS_$klass)
393	}	632	}
394		633
…		…
447	=cut	686	=cut
448		687
449	#############################################################################	688	#############################################################################
450	# object support	689	# object support
451		690
452	sub instantiate {
453	my ($obj, $data) = @_;
454
455	$data = from_json $data;
456
457	for (@$data) {
458	my ($name, $args) = @$_;
459
460	$obj->attach ($name, %{$args || {} });
461	}
462	}
463
464	# basically do the same as instantiate, without calling instantiate
465	sub reattach {	691	sub reattach {
		692	# basically do the same as instantiate, without calling instantiate
466	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		696
467	my $registry = $obj->registry;	697	my $registry = $obj->registry;
468		698
469	@$registry = ();	699	@$registry = ();
470		700
471	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	701	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
…		…
480	warn "object uses attachment '$name' that is not available, postponing.\n";	710	warn "object uses attachment '$name' that is not available, postponing.\n";
481	}	711	}
482	}	712	}
483	}	713	}
484		714
485	sub object_freezer_save {	715	cf::attachable->attach (
486	my ($filename, $rdata, $objs) = @_;
487
488	if (length $$rdata) {
489	warn sprintf "saving %s (%d,%d)\n",
490	$filename, length $$rdata, scalar @$objs;
491
492	if (open my $fh, ">:raw", "$filename~") {
493	chmod SAVE_MODE, $fh;
494	syswrite $fh, $$rdata;
495	close $fh;
496
497	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
498	chmod SAVE_MODE, $fh;
499	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
500	close $fh;
501	rename "$filename.pst~", "$filename.pst";
502	} else {
503	unlink "$filename.pst";
504	}
505
506	rename "$filename~", $filename;
507	} else {
508	warn "FATAL: $filename~: $!\n";
509	}
510	} else {
511	unlink $filename;
512	unlink "$filename.pst";
513	}
514	}
515
516	sub object_freezer_as_string {
517	my ($rdata, $objs) = @_;
518
519	use Data::Dumper;
520
521	$$rdata . Dumper $objs
522	}
523
524	sub object_thawer_load {
525	my ($filename) = @_;
526
527	local $/;
528
529	my $av;
530
531	#TODO: use sysread etc.
532	if (open my $data, "<:raw:perlio", $filename) {
533	$data = <$data>;
534	if (open my $pst, "<:raw:perlio", "$filename.pst") {
535	$av = eval { (Storable::thaw <$pst>)->{objs} };
536	}
537	return ($data, $av);
538	}
539
540	()
541	}
542
543	cf::object->attach (
544	prio => -1000000,	716	prio => -1000000,
		717	on_instantiate => sub {
		718	my ($obj, $data) = @_;
		719
		720	$data = from_json $data;
		721
		722	for (@$data) {
		723	my ($name, $args) = @$_;
		724
		725	$obj->attach ($name, %{$args || {} });
		726	}
		727	},
		728	on_reattach => \&reattach,
545	on_clone => sub {	729	on_clone => sub {
546	my ($src, $dst) = @_;	730	my ($src, $dst) = @_;
547		731
548	@{$dst->registry} = @{$src->registry};	732	@{$dst->registry} = @{$src->registry};
549		733
…		…
552	%{$dst->{_attachment}} = %{$src->{_attachment}}	736	%{$dst->{_attachment}} = %{$src->{_attachment}}
553	if exists $src->{_attachment};	737	if exists $src->{_attachment};
554	},	738	},
555	);	739	);
556		740
		741	sub object_freezer_save {
		742	my ($filename, $rdata, $objs) = @_;
		743
		744	sync_job {
		745	if (length $$rdata) {
		746	warn sprintf "saving %s (%d,%d)\n",
		747	$filename, length $$rdata, scalar @$objs;
		748
		749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		750	chmod SAVE_MODE, $fh;
		751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		752	aio_fsync $fh;
		753	close $fh;
		754
		755	if (@$objs) {
		756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		757	chmod SAVE_MODE, $fh;
		758	my $data = Storable::nfreeze { version => 1, objs => $objs };
		759	aio_write $fh, 0, (length $data), $data, 0;
		760	aio_fsync $fh;
		761	close $fh;
		762	aio_rename "$filename.pst~", "$filename.pst";
		763	}
		764	} else {
		765	aio_unlink "$filename.pst";
		766	}
		767
		768	aio_rename "$filename~", $filename;
		769	} else {
		770	warn "FATAL: $filename~: $!\n";
		771	}
		772	} else {
		773	aio_unlink $filename;
		774	aio_unlink "$filename.pst";
		775	}
		776	}
		777	}
		778
		779	sub object_freezer_as_string {
		780	my ($rdata, $objs) = @_;
		781
		782	use Data::Dumper;
		783
		784	$$rdata . Dumper $objs
		785	}
		786
		787	sub object_thawer_load {
		788	my ($filename) = @_;
		789
		790	my ($data, $av);
		791
		792	(aio_load $filename, $data) >= 0
		793	or return;
		794
		795	unless (aio_stat "$filename.pst") {
		796	(aio_load "$filename.pst", $av) >= 0
		797	or return;
		798	$av = eval { (Storable::thaw $av)->{objs} };
		799	}
		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
		803	return ($data, $av);
		804	}
		805
557	#############################################################################	806	#############################################################################
558	# command handling &c	807	# command handling &c
559		808
560	=item cf::register_command $name => \&callback($ob,$args);	809	=item cf::register_command $name => \&callback($ob,$args);
561		810
…		…
583	=cut	832	=cut
584		833
585	sub register_extcmd {	834	sub register_extcmd {
586	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
587		836
588	my $caller = caller;
589	#warn "registering extcmd '$name' to '$caller'";
590
591	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
592	}	838	}
593		839
594	cf::player->attach (	840	cf::player->attach (
595	on_command => sub {	841	on_command => sub {
596	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
609		855
610	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
611		857
612	if (ref $msg) {	858	if (ref $msg) {
613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
614	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
615	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
616	}	862	}
617	}	863	}
618	} else {	864	} else {
619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
621		867
622	cf::override;	868	cf::override;
623	},	869	},
624	);	870	);
625		871
626	sub register {
627	my ($base, $pkg) = @_;
628
629	#TODO
630	}
631
632	sub load_extension {	872	sub load_extension {
633	my ($path) = @_;	873	my ($path) = @_;
634		874
635	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
636	my $base = $1;	876	my $base = $1;
637	my $pkg = $1;	877	my $pkg = $1;
638	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
639	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
640		880
641	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
642		882
643	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
644	or die "$path: $!";	884	or die "$path: $!";
645		885
646	my $source =	886	my $source =
647	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
648	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
649	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
650	. "\n};\n1";	890	. "\n};\n1";
651		891
652	eval $source	892	unless (eval $source) {
653	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
654	: "extension disabled.\n";	894	: "extension disabled.\n";
655		895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
656	push @exts, $pkg;	896	warn $@;
657	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
658		898	exit 1;
659	# no strict 'refs';	899	}
660	# @{"$pkg\::ISA"} = ext::;	900	die $@;
661
662	register $base, $pkg;
663	}
664
665	sub unload_extension {
666	my ($pkg) = @_;
667
668	warn "removing extension $pkg\n";
669
670	# remove hooks
671	#TODO
672	# for my $idx (0 .. $#PLUGIN_EVENT) {
673	# delete $hook[$idx]{$pkg};
674	# }	901	}
675		902
676	# remove commands	903	push @EXTS, $pkg;
677	for my $name (keys %COMMAND) {
678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
679
680	if (@cb) {
681	$COMMAND{$name} = \@cb;
682	} else {
683	delete $COMMAND{$name};
684	}
685	}
686
687	# remove extcmds
688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
689	delete $EXTCMD{$name};
690	}
691
692	if (my $cb = $pkg->can ("unload")) {
693	eval {
694	$cb->($pkg);
695	1
696	} or warn "$pkg unloaded, but with errors: $@";
697	}
698
699	Symbol::delete_package $pkg;
700	}	904	}
701		905
702	sub load_extensions {	906	sub load_extensions {
703	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
704	next unless -r $ext;	908	next unless -r $ext;
…		…
708	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
709	}	913	}
710	}	914	}
711		915
712	#############################################################################	916	#############################################################################
713	# load/save/clean perl data associated with a map
714		917
715	*cf::mapsupport::on_clean = sub {	918	=head2 CORE EXTENSIONS
		919
		920	Functions and methods that extend core crossfire objects.
		921
		922	=cut
		923
		924	package cf::player;
		925
		926	use Coro::AIO;
		927
		928	=head3 cf::player
		929
		930	=over 4
		931
		932	=item cf::player::find $login
		933
		934	Returns the given player object, loading it if necessary (might block).
		935
		936	=cut
		937
		938	sub playerdir($) {
		939	cf::localdir
		940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} || do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} || do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
		975	}
		976	}
		977	}
		978
		979	sub save($) {
		980	my ($pl) = @_;
		981
		982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
		1085	}
		1086
		1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1088
		1089	Sends an ext reply to the player.
		1090
		1091	=cut
		1092
		1093	sub ext_reply($$$%) {
		1094	my ($self, $id, %msg) = @_;
		1095
		1096	$msg{msgid} = $id;
		1097
		1098	$self->send ("ext " . cf::to_json \%msg);
		1099	}
		1100
		1101	package cf;
		1102
		1103	=back
		1104
		1105
		1106	=head3 cf::map
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
		1112	package cf::map;
		1113
		1114	use Fcntl;
		1115	use Coro::AIO;
		1116
		1117	use overload
		1118	'""' => \&as_string,
		1119	fallback => 1;
		1120
		1121	our $MAX_RESET = 3600;
		1122	our $DEFAULT_RESET = 3000;
		1123
		1124	sub generate_random_map {
		1125	my ($self, $rmp) = @_;
		1126
		1127	# mit "rum" bekleckern, nicht
		1128	$self->_create_random_map (
		1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1131	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1132	$rmp->{exit_on_final_map},
		1133	$rmp->{xsize}, $rmp->{ysize},
		1134	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1135	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1136	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1137	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1139	(cf::region::find $rmp->{region}), $rmp->{custom}
		1140	)
		1141	}
		1142
		1143	sub register {
		1144	my (undef, $regex) = @_;
		1145	my $pkg = caller;
		1146
		1147	no strict;
		1148	push @{"$pkg\::ISA"}, __PACKAGE__;
		1149
		1150	$EXT_MAP{$pkg} = qr<$regex>;
		1151	}
		1152
		1153	# also paths starting with '/'
		1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1155
		1156	sub thawer_merge {
		1157	my ($self, $merge) = @_;
		1158
		1159	# we have to keep some variables in memory intact
		1160	local $self->{path};
		1161	local $self->{load_path};
		1162	local $self->{deny_save};
		1163	local $self->{deny_reset};
		1164
		1165	$self->SUPER::thawer_merge ($merge);
		1166	}
		1167
		1168	sub normalise {
		1169	my ($path, $base) = @_;
		1170
		1171	# map plan:
		1172	#
		1173	# /! non-realised random map exit (special hack!)
		1174	# {... are special paths that are not being touched
		1175	# ?xxx/... are special absolute paths
		1176	# ?random/... random maps
		1177	# /... normal maps
		1178	# ~user/... per-player map of a specific user
		1179
		1180	$path =~ s/$PATH_SEP/\//go;
		1181
		1182	# treat it as relative path if it starts with
		1183	# something that looks reasonable
		1184	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1185	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1186
		1187	$base =~ s{[^/]+/?$}{};
		1188	$path = "$base/$path";
		1189	}
		1190
		1191	for ($path) {
		1192	redo if s{//}{/};
		1193	redo if s{/\.?/}{/};
		1194	redo if s{/[^/]+/\.\./}{/};
		1195	}
		1196
		1197	$path
		1198	}
		1199
		1200	sub new_from_path {
		1201	my (undef, $path, $base) = @_;
		1202
		1203	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1204
		1205	$path = normalise $path, $base;
		1206
		1207	for my $pkg (keys %EXT_MAP) {
		1208	if ($path =~ $EXT_MAP{$pkg}) {
		1209	my $self = bless cf::map::new, $pkg;
		1210	$self->{path} = $path; $self->path ($path);
		1211	$self->init; # pass $1 etc.
		1212	return $self;
		1213	}
		1214	}
		1215
		1216	Carp::carp "unable to resolve path '$path'.";
		1217	()
		1218	}
		1219
		1220	sub init {
		1221	my ($self) = @_;
		1222
		1223	$self
		1224	}
		1225
		1226	sub as_string {
		1227	my ($self) = @_;
		1228
		1229	"$self->{path}"
		1230	}
		1231
		1232	# the displayed name, this is a one way mapping
		1233	sub visible_name {
		1234	&as_string
		1235	}
		1236
		1237	# the original (read-only) location
		1238	sub load_path {
		1239	my ($self) = @_;
		1240
		1241	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1242	}
		1243
		1244	# the temporary/swap location
		1245	sub save_path {
		1246	my ($self) = @_;
		1247
		1248	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1249	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1250	}
		1251
		1252	# the unique path, undef == no special unique path
		1253	sub uniq_path {
		1254	my ($self) = @_;
		1255
		1256	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1257	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1258	}
		1259
		1260	# and all this just because we cannot iterate over
		1261	# all maps in C++...
		1262	sub change_all_map_light {
		1263	my ($change) = @_;
		1264
		1265	$_->change_map_light ($change)
		1266	for grep $_->outdoor, values %cf::MAP;
		1267	}
		1268
		1269	sub unlink_save {
		1270	my ($self) = @_;
		1271
		1272	utf8::encode (my $save = $self->save_path);
		1273	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1274	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1275	}
		1276
		1277	sub load_header_from($) {
		1278	my ($self, $path) = @_;
		1279
		1280	utf8::encode $path;
		1281	aio_open $path, O_RDONLY, 0
		1282	or return;
		1283
		1284	$self->_load_header ($path)
		1285	or return;
		1286
		1287	$self->{load_path} = $path;
		1288
		1289	1
		1290	}
		1291
		1292	sub load_orig {
		1293	my ($self) = @_;
		1294
		1295	$self->load_header_from ($self->load_path)
		1296	}
		1297
		1298	sub load_temp {
		1299	my ($self) = @_;
		1300
		1301	$self->load_header_from ($self->save_path)
		1302	}
		1303
		1304	sub load_header {
		1305	my ($self) = @_;
		1306
		1307	if ($self->load_temp) {
		1308	$self->last_access ((delete $self->{last_access})
		1309	|| $cf::RUNTIME); #d#
		1310	# safety
		1311	$self->{instantiate_time} = $cf::RUNTIME
		1312	if $self->{instantiate_time} > $cf::RUNTIME;
		1313	} else {
		1314	$self->load_orig
		1315	or return;
		1316
		1317	$self->{load_original} = 1;
		1318	$self->{instantiate_time} = $cf::RUNTIME;
		1319	$self->last_access ($cf::RUNTIME);
		1320	$self->instantiate;
		1321	}
		1322
		1323	1
		1324	}
		1325
		1326	sub find;
		1327	sub find {
		1328	my ($path, $origin) = @_;
		1329
		1330	$path = normalise $path, $origin && $origin->path;
		1331
		1332	cf::lock_wait "map_find:$path";
		1333
		1334	$cf::MAP{$path} || do {
		1335	my $guard = cf::lock_acquire "map_find:$path";
		1336	my $map = new_from_path cf::map $path
		1337	or return;
		1338
		1339	$map->{last_save} = $cf::RUNTIME;
		1340
		1341	$map->load_header
		1342	or return;
		1343
		1344	if ($map->should_reset) {
		1345	$cf::WAIT_FOR_TICK->wait;
		1346	$map->reset;
		1347	undef $guard;
		1348	$map = find $path
		1349	or return;
		1350	}
		1351
		1352	$cf::MAP{$path} = $map
		1353	}
		1354	}
		1355
		1356	sub load {
		1357	my ($self) = @_;
		1358
		1359	my $path = $self->{path};
		1360	my $guard = cf::lock_acquire "map_load:$path";
		1361
		1362	return if $self->in_memory != cf::MAP_SWAPPED;
		1363
		1364	$self->in_memory (cf::MAP_LOADING);
		1365
		1366	$self->alloc;
		1367	$self->_load_objects ($self->{load_path}, 1)
		1368	or return;
		1369
		1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1371	if delete $self->{load_original};
		1372
		1373	if (my $uniq = $self->uniq_path) {
		1374	utf8::encode $uniq;
		1375	if (aio_open $uniq, O_RDONLY, 0) {
		1376	$self->clear_unique_items;
		1377	$self->_load_objects ($uniq, 0);
		1378	}
		1379	}
		1380
		1381	Coro::cede;
		1382
		1383	# now do the right thing for maps
		1384	$self->link_multipart_objects;
		1385
		1386	unless ($self->{deny_activate}) {
		1387	$self->decay_objects;
		1388	$self->fix_auto_apply;
		1389	$self->update_buttons;
		1390	Coro::cede;
		1391	$self->set_darkness_map;
		1392	$self->difficulty ($self->estimate_difficulty)
		1393	unless $self->difficulty;
		1394	Coro::cede;
		1395	$self->activate;
		1396	}
		1397
		1398	$self->in_memory (cf::MAP_IN_MEMORY);
		1399	}
		1400
		1401	sub customise_for {
		1402	my ($self, $ob) = @_;
		1403
		1404	return find "~" . $ob->name . "/" . $self->{path}
		1405	if $self->per_player;
		1406
		1407	$self
		1408	}
		1409
		1410	# find and load all maps in the 3x3 area around a map
		1411	sub load_diag {
716	my ($map) = @_;	1412	my ($map) = @_;
717		1413
718	my $path = $map->tmpname;	1414	my @diag; # diagonal neighbours
719	defined $path or return;
720		1415
721	unlink "$path.pst";	1416	for (0 .. 3) {
		1417	my $neigh = $map->tile_path ($_)
		1418	or next;
		1419	$neigh = find $neigh, $map
		1420	or next;
		1421	$neigh->load;
		1422
		1423	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1424	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1425	}
		1426
		1427	for (@diag) {
		1428	my $neigh = find @$_
		1429	or next;
		1430	$neigh->load;
		1431	}
		1432	}
		1433
		1434	sub find_sync {
		1435	my ($path, $origin) = @_;
		1436
		1437	cf::sync_job { find $path, $origin }
		1438	}
		1439
		1440	sub do_load_sync {
		1441	my ($map) = @_;
		1442
		1443	cf::sync_job { $map->load };
		1444	}
		1445
		1446	our %MAP_PREFETCH;
		1447	our $MAP_PREFETCHER = Coro::async {
		1448	while () {
		1449	for my $path (keys %MAP_PREFETCH) {
		1450	my $map = find $path
		1451	or next;
		1452	$map->load;
		1453
		1454	delete $MAP_PREFETCH{$path};
		1455	}
		1456	Coro::schedule;
		1457	}
722	};	1458	};
723		1459
724	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1460	sub find_async {
		1461	my ($path, $origin) = @_;
725		1462
726	#############################################################################	1463	$path = normalise $path, $origin && $origin->{path};
727	# load/save perl data associated with player->ob objects
728		1464
729	sub all_objects(@) {	1465	if (my $map = $cf::MAP{$path}) {
730	@_, map all_objects ($_->inv), @_	1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
731	}
732
733	# TODO: compatibility cruft, remove when no longer needed
734	cf::player->attach (
735	on_load => sub {
736	my ($pl, $path) = @_;
737
738	for my $o (all_objects $pl->ob) {
739	if (my $value = $o->get_ob_key_value ("_perl_data")) {
740	$o->set_ob_key_value ("_perl_data");
741
742	%$o = %{ Storable::thaw pack "H*", $value };
743	}
744	}
745	},	1467	}
746	);
747		1468
748	#############################################################################	1469	$MAP_PREFETCH{$path} = 0;
		1470	$MAP_PREFETCHER->ready;
749		1471
750	=head2 CORE EXTENSIONS	1472	()
		1473	}
751		1474
752	Functions and methods that extend core crossfire objects.	1475	sub save {
		1476	my ($self) = @_;
753		1477
754	=head3 cf::player	1478	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1479
		1480	$self->{last_save} = $cf::RUNTIME;
		1481
		1482	return unless $self->dirty;
		1483
		1484	my $save = $self->save_path; utf8::encode $save;
		1485	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1486
		1487	$self->{load_path} = $save;
		1488
		1489	return if $self->{deny_save};
		1490
		1491	local $self->{last_access} = $self->last_access;#d#
		1492
		1493	cf::async {
		1494	$_->contr->save for $self->players;
		1495	};
		1496
		1497	if ($uniq) {
		1498	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1499	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1500	} else {
		1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1502	}
		1503	}
		1504
		1505	sub swap_out {
		1506	my ($self) = @_;
		1507
		1508	# save first because save cedes
		1509	$self->save;
		1510
		1511	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1512
		1513	return if $self->players;
		1514	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1515	return if $self->{deny_save};
		1516
		1517	$self->clear;
		1518	$self->in_memory (cf::MAP_SWAPPED);
		1519	}
		1520
		1521	sub reset_at {
		1522	my ($self) = @_;
		1523
		1524	# TODO: safety, remove and allow resettable per-player maps
		1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1526	return 1e99 if $self->{deny_reset};
		1527
		1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1530
		1531	$time + $to
		1532	}
		1533
		1534	sub should_reset {
		1535	my ($self) = @_;
		1536
		1537	$self->reset_at <= $cf::RUNTIME
		1538	}
		1539
		1540	sub reset {
		1541	my ($self) = @_;
		1542
		1543	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1544
		1545	return if $self->players;
		1546	return if $self->isa ("ext::map_per_player");#d#
		1547
		1548	warn "resetting map ", $self->path;#d#
		1549
		1550	delete $cf::MAP{$self->path};
		1551
		1552	$self->in_memory (cf::MAP_SWAPPED);
		1553	$self->clear;
		1554
		1555	$_->clear_links_to ($self) for values %cf::MAP;
		1556
		1557	$self->unlink_save;
		1558	$self->destroy;
		1559	}
		1560
		1561	my $nuke_counter = "aaaa";
		1562
		1563	sub nuke {
		1564	my ($self) = @_;
		1565
		1566	delete $cf::MAP{$self->path};
		1567
		1568	$self->unlink_save;
		1569
		1570	bless $self, "cf::map";
		1571	delete $self->{deny_reset};
		1572	$self->{deny_save} = 1;
		1573	$self->reset_timeout (1);
		1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1575
		1576	$cf::MAP{$self->path} = $self;
		1577
		1578	$self->reset; # polite request, might not happen
		1579	}
		1580
		1581	=item cf::map::unique_maps
		1582
		1583	Returns an arrayref of paths of all shared maps that have
		1584	instantiated unique items. May block.
		1585
		1586	=cut
		1587
		1588	sub unique_maps() {
		1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1590	or return;
		1591
		1592	my @paths;
		1593
		1594	for (@$files) {
		1595	utf8::decode $_;
		1596	next if /\.pst$/;
		1597	next unless /^$PATH_SEP/o;
		1598
		1599	s/\.map$//;
		1600	push @paths, $_;
		1601	}
		1602
		1603	\@paths
		1604	}
		1605
		1606	package cf;
		1607
		1608	=back
		1609
		1610	=head3 cf::object
		1611
		1612	=cut
		1613
		1614	package cf::object;
755		1615
756	=over 4	1616	=over 4
757		1617
758	=item cf::player::exists $login	1618	=item $ob->inv_recursive
759		1619
760	Returns true when the given account exists.	1620	Returns the inventory of the object _and_ their inventories, recursively.
761		1621
762	=cut	1622	=cut
763		1623
764	sub cf::player::exists($) {	1624	sub inv_recursive_;
765	cf::player::find $_[0]	1625	sub inv_recursive_ {
766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1626	map { $_, inv_recursive_ $_->inv } @_
767	}	1627	}
768		1628
769	=item $player->ext_reply ($msgid, $msgtype, %msg)	1629	sub inv_recursive {
770		1630	inv_recursive_ inv $_[0]
771	Sends an ext reply to the player.
772
773	=cut
774
775	sub cf::player::ext_reply($$$%) {
776	my ($self, $id, %msg) = @_;
777
778	$msg{msgid} = $id;
779
780	$self->send ("ext " . to_json \%msg);
781	}	1631	}
		1632
		1633	package cf;
782		1634
783	=back	1635	=back
784		1636
785	=head3 cf::object::player	1637	=head3 cf::object::player
786		1638
…		…
824	(ref $cf::CFG{"may_$access"}	1676	(ref $cf::CFG{"may_$access"}
825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1677	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
826	: $cf::CFG{"may_$access"})	1678	: $cf::CFG{"may_$access"})
827	}	1679	}
828		1680
		1681	=item $player_object->enter_link
		1682
		1683	Freezes the player and moves him/her to a special map (C<{link}>).
		1684
		1685	The player should be reasonably safe there for short amounts of time. You
		1686	I<MUST> call C<leave_link> as soon as possible, though.
		1687
		1688	Will never block.
		1689
		1690	=item $player_object->leave_link ($map, $x, $y)
		1691
		1692	Moves the player out of the special C<{link}> map onto the specified
		1693	map. If the map is not valid (or omitted), the player will be moved back
		1694	to the location he/she was before the call to C<enter_link>, or, if that
		1695	fails, to the emergency map position.
		1696
		1697	Might block.
		1698
		1699	=cut
		1700
		1701	sub link_map {
		1702	unless ($LINK_MAP) {
		1703	$LINK_MAP = cf::map::find "{link}"
		1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1705	$LINK_MAP->load;
		1706	}
		1707
		1708	$LINK_MAP
		1709	}
		1710
		1711	sub cf::object::player::enter_link {
		1712	my ($self) = @_;
		1713
		1714	$self->deactivate_recursive;
		1715
		1716	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1717
		1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1719	if $self->map;
		1720
		1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1722	}
		1723
		1724	sub cf::object::player::leave_link {
		1725	my ($self, $map, $x, $y) = @_;
		1726
		1727	my $link_pos = delete $self->{_link_pos};
		1728
		1729	unless ($map) {
		1730	# restore original map position
		1731	($map, $x, $y) = @{ $link_pos || [] };
		1732	$map = cf::map::find $map;
		1733
		1734	unless ($map) {
		1735	($map, $x, $y) = @$EMERGENCY_POSITION;
		1736	$map = cf::map::find $map
		1737	or die "FATAL: cannot load emergency map\n";
		1738	}
		1739	}
		1740
		1741	($x, $y) = (-1, -1)
		1742	unless (defined $x) && (defined $y);
		1743
		1744	# use -1 or undef as default coordinates, not 0, 0
		1745	($x, $y) = ($map->enter_x, $map->enter_y)
		1746	if $x <=0 && $y <= 0;
		1747
		1748	$map->load;
		1749	$map->load_diag;
		1750
		1751	return unless $self->contr->active;
		1752	$self->activate_recursive;
		1753	$self->enter_map ($map, $x, $y);
		1754	}
		1755
		1756	cf::player->attach (
		1757	on_logout => sub {
		1758	my ($pl) = @_;
		1759
		1760	# abort map switching before logout
		1761	if ($pl->ob->{_link_pos}) {
		1762	cf::sync_job {
		1763	$pl->ob->leave_link
		1764	};
		1765	}
		1766	},
		1767	on_login => sub {
		1768	my ($pl) = @_;
		1769
		1770	# try to abort aborted map switching on player login :)
		1771	# should happen only on crashes
		1772	if ($pl->ob->{_link_pos}) {
		1773	$pl->ob->enter_link;
		1774	(async {
		1775	# we need this sleep as the login has a concurrent enter_exit running
		1776	# and this sleep increases chances of the player not ending up in scorn
		1777	$pl->ob->reply (undef,
		1778	"There was an internal problem at your last logout, "
		1779	. "the server will try to bring you to your intended destination in a second.",
		1780	cf::NDI_RED);
		1781	Coro::Timer::sleep 1;
		1782	$pl->ob->leave_link;
		1783	})->prio (2);
		1784	}
		1785	},
		1786	);
		1787
		1788	=item $player_object->goto ($path, $x, $y)
		1789
		1790	=cut
		1791
		1792	sub cf::object::player::goto {
		1793	my ($self, $path, $x, $y) = @_;
		1794
		1795	$self->enter_link;
		1796
		1797	(async {
		1798	my $map = cf::map::find $path;
		1799	$map = $map->customise_for ($self) if $map;
		1800
		1801	# warn "entering ", $map->path, " at ($x, $y)\n"
		1802	# if $map;
		1803
		1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1805
		1806	$self->leave_link ($map, $x, $y);
		1807	})->prio (1);
		1808	}
		1809
		1810	=item $player_object->enter_exit ($exit_object)
		1811
		1812	=cut
		1813
		1814	sub parse_random_map_params {
		1815	my ($spec) = @_;
		1816
		1817	my $rmp = { # defaults
		1818	xsize => 10,
		1819	ysize => 10,
		1820	};
		1821
		1822	for (split /\n/, $spec) {
		1823	my ($k, $v) = split /\s+/, $_, 2;
		1824
		1825	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1826	}
		1827
		1828	$rmp
		1829	}
		1830
		1831	sub prepare_random_map {
		1832	my ($exit) = @_;
		1833
		1834	# all this does is basically replace the /! path by
		1835	# a new random map path (?random/...) with a seed
		1836	# that depends on the exit object
		1837
		1838	my $rmp = parse_random_map_params $exit->msg;
		1839
		1840	if ($exit->map) {
		1841	$rmp->{region} = $exit->map->region_name;
		1842	$rmp->{origin_map} = $exit->map->path;
		1843	$rmp->{origin_x} = $exit->x;
		1844	$rmp->{origin_y} = $exit->y;
		1845	}
		1846
		1847	$rmp->{random_seed} ||= $exit->random_seed;
		1848
		1849	my $data = cf::to_json $rmp;
		1850	my $md5 = Digest::MD5::md5_hex $data;
		1851
		1852	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1853	aio_write $fh, 0, (length $data), $data, 0;
		1854
		1855	$exit->slaying ("?random/$md5");
		1856	$exit->msg (undef);
		1857	}
		1858	}
		1859
		1860	sub cf::object::player::enter_exit {
		1861	my ($self, $exit) = @_;
		1862
		1863	return unless $self->type == cf::PLAYER;
		1864
		1865	$self->enter_link;
		1866
		1867	(async {
		1868	$self->deactivate_recursive; # just to be sure
		1869	unless (eval {
		1870	prepare_random_map $exit
		1871	if $exit->slaying eq "/!";
		1872
		1873	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1874	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1875
		1876	1;
		1877	}) {
		1878	$self->message ("Something went wrong deep within the crossfire server. "
		1879	. "I'll try to bring you back to the map you were before. "
		1880	. "Please report this to the dungeon master!",
		1881	cf::NDI_UNIQUE | cf::NDI_RED);
		1882
		1883	warn "ERROR in enter_exit: $@";
		1884	$self->leave_link;
		1885	}
		1886	})->prio (1);
		1887	}
		1888
829	=head3 cf::client	1889	=head3 cf::client
830		1890
831	=over 4	1891	=over 4
832		1892
833	=item $client->send_drawinfo ($text, $flags)	1893	=item $client->send_drawinfo ($text, $flags)
…		…
876	on_reply => sub {	1936	on_reply => sub {
877	my ($ns, $msg) = @_;	1937	my ($ns, $msg) = @_;
878		1938
879	# this weird shuffling is so that direct followup queries	1939	# this weird shuffling is so that direct followup queries
880	# get handled first	1940	# get handled first
881	my $queue = delete $ns->{query_queue};	1941	my $queue = delete $ns->{query_queue}
		1942	or return; # be conservative, not sure how that can happen, but we saw a crash here
882		1943
883	(shift @$queue)->[1]->($msg);	1944	(shift @$queue)->[1]->($msg);
884		1945
885	push @{ $ns->{query_queue} }, @$queue;	1946	push @{ $ns->{query_queue} }, @$queue;
886		1947
…		…
892	}	1953	}
893	}	1954	}
894	},	1955	},
895	);	1956	);
896		1957
897	=item $client->coro (\&cb)	1958	=item $client->async (\&cb)
898		1959
899	Create a new coroutine, running the specified callback. The coroutine will	1960	Create a new coroutine, running the specified callback. The coroutine will
900	be automatically cancelled when the client gets destroyed (e.g. on logout,	1961	be automatically cancelled when the client gets destroyed (e.g. on logout,
901	or loss of connection).	1962	or loss of connection).
902		1963
903	=cut	1964	=cut
904		1965
905	sub cf::client::coro {	1966	sub cf::client::async {
906	my ($self, $cb) = @_;	1967	my ($self, $cb) = @_;
907		1968
908	my $coro; $coro = async {	1969	my $coro = &Coro::async ($cb);
909	eval {	1970
910	$cb->();	1971	$coro->on_destroy (sub {
911	};
912	warn $@ if $@;
913	delete $self->{_coro}{$coro+0};	1972	delete $self->{_coro}{$coro+0};
914	};	1973	});
915		1974
916	$self->{_coro}{$coro+0} = $coro;	1975	$self->{_coro}{$coro+0} = $coro;
		1976
		1977	$coro
917	}	1978	}
918		1979
919	cf::client->attach (	1980	cf::client->attach (
920	on_destroy => sub {	1981	on_destroy => sub {
921	my ($ns) = @_;	1982	my ($ns) = @_;
…		…
1085		2146
1086	{	2147	{
1087	my $path = cf::localdir . "/database.pst";	2148	my $path = cf::localdir . "/database.pst";
1088		2149
1089	sub db_load() {	2150	sub db_load() {
1090	warn "loading database $path\n";#d# remove later
1091	$DB = stat $path ? Storable::retrieve $path : { };	2151	$DB = stat $path ? Storable::retrieve $path : { };
1092	}	2152	}
1093		2153
1094	my $pid;	2154	my $pid;
1095		2155
1096	sub db_save() {	2156	sub db_save() {
1097	warn "saving database $path\n";#d# remove later
1098	waitpid $pid, 0 if $pid;	2157	waitpid $pid, 0 if $pid;
1099	if (0 == ($pid = fork)) {	2158	if (0 == ($pid = fork)) {
1100	$DB->{_meta}{version} = 1;	2159	$DB->{_meta}{version} = 1;
1101	Storable::nstore $DB, "$path~";	2160	Storable::nstore $DB, "$path~";
1102	rename "$path~", $path;	2161	rename "$path~", $path;
…		…
1150	open my $fh, "<:utf8", cf::confdir . "/config"	2209	open my $fh, "<:utf8", cf::confdir . "/config"
1151	or return;	2210	or return;
1152		2211
1153	local $/;	2212	local $/;
1154	*CFG = YAML::Syck::Load <$fh>;	2213	*CFG = YAML::Syck::Load <$fh>;
		2214
		2215	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2216
		2217	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2218	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2219
		2220	if (exists $CFG{mlockall}) {
		2221	eval {
		2222	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2223	and die "WARNING: m(un)lockall failed: $!\n";
		2224	};
		2225	warn $@ if $@;
		2226	}
1155	}	2227	}
1156		2228
1157	sub main {	2229	sub main {
		2230	# we must not ever block the main coroutine
		2231	local $Coro::idle = sub {
		2232	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2233	async { Event::one_event };
		2234	};
		2235
1158	cfg_load;	2236	cfg_load;
1159	db_load;	2237	db_load;
1160	load_extensions;	2238	load_extensions;
1161	Event::loop;	2239	Event::loop;
1162	}	2240	}
1163		2241
1164	#############################################################################	2242	#############################################################################
1165	# initialisation	2243	# initialisation and cleanup
1166		2244
		2245	# install some emergency cleanup handlers
		2246	BEGIN {
		2247	for my $signal (qw(INT HUP TERM)) {
		2248	Event->signal (
		2249	data => WF_AUTOCANCEL,
		2250	signal => $signal,
		2251	cb => sub {
		2252	cf::cleanup "SIG$signal";
		2253	},
		2254	);
		2255	}
		2256	}
		2257
		2258	sub emergency_save() {
		2259	my $freeze_guard = cf::freeze_mainloop;
		2260
		2261	warn "enter emergency perl save\n";
		2262
		2263	cf::sync_job {
		2264	# use a peculiar iteration method to avoid tripping on perl
		2265	# refcount bugs in for. also avoids problems with players
		2266	# and maps saved/destroyed asynchronously.
		2267	warn "begin emergency player save\n";
		2268	for my $login (keys %cf::PLAYER) {
		2269	my $pl = $cf::PLAYER{$login} or next;
		2270	$pl->valid or next;
		2271	$pl->save;
		2272	}
		2273	warn "end emergency player save\n";
		2274
		2275	warn "begin emergency map save\n";
		2276	for my $path (keys %cf::MAP) {
		2277	my $map = $cf::MAP{$path} or next;
		2278	$map->valid or next;
		2279	$map->save;
		2280	}
		2281	warn "end emergency map save\n";
		2282	};
		2283
		2284	warn "leave emergency perl save\n";
		2285	}
		2286
1167	sub _perl_reload(&) {	2287	sub reload() {
1168	my ($msg) = @_;	2288	# can/must only be called in main
		2289	if ($Coro::current != $Coro::main) {
		2290	warn "can only reload from main coroutine\n";
		2291	return;
		2292	}
1169		2293
1170	$msg->("reloading...");	2294	warn "reloading...";
		2295
		2296	warn "freezing server";
		2297	my $guard = freeze_mainloop;
		2298	cf::emergency_save;
		2299
		2300	warn "sync database to disk";
		2301	cf::db_sync;
		2302	IO::AIO::flush;
1171		2303
1172	eval {	2304	eval {
		2305	# if anything goes wrong in here, we should simply crash as we already saved
		2306
1173	# cancel all watchers	2307	warn "cancel all watchers";
1174	for (Event::all_watchers) {	2308	for (Event::all_watchers) {
1175	$_->cancel if $_->data & WF_AUTOCANCEL;	2309	$_->cancel if $_->data & WF_AUTOCANCEL;
1176	}	2310	}
1177		2311
		2312	warn "cancel all extension coros";
		2313	$_->cancel for values %EXT_CORO;
		2314	%EXT_CORO = ();
		2315
		2316	warn "remove commands";
		2317	%COMMAND = ();
		2318
		2319	warn "remove ext commands";
		2320	%EXTCMD = ();
		2321
1178	# unload all extensions	2322	warn "unload/nuke all extensions";
1179	for (@exts) {	2323	for my $pkg (@EXTS) {
1180	$msg->("unloading <$_>");	2324	warn "... unloading $pkg";
1181	unload_extension $_;	2325
		2326	if (my $cb = $pkg->can ("unload")) {
		2327	eval {
		2328	$cb->($pkg);
		2329	1
		2330	} or warn "$pkg unloaded, but with errors: $@";
1182	}	2331	}
1183		2332
		2333	warn "... nuking $pkg";
		2334	Symbol::delete_package $pkg;
		2335	}
		2336
1184	# unload all modules loaded from $LIBDIR	2337	warn "unload all perl modules loaded from $LIBDIR";
1185	while (my ($k, $v) = each %INC) {	2338	while (my ($k, $v) = each %INC) {
1186	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2339	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1187		2340
1188	$msg->("removing <$k>");	2341	warn "removing <$k>";
1189	delete $INC{$k};	2342	delete $INC{$k};
1190		2343
1191	$k =~ s/\.pm$//;	2344	$k =~ s/\.pm$//;
1192	$k =~ s/\//::/g;	2345	$k =~ s/\//::/g;
1193		2346
…		…
1196	}	2349	}
1197		2350
1198	Symbol::delete_package $k;	2351	Symbol::delete_package $k;
1199	}	2352	}
1200		2353
1201	# sync database to disk
1202	cf::db_sync;
1203
1204	# get rid of safe::, as good as possible	2354	warn "get rid of safe::, as good as possible";
1205	Symbol::delete_package "safe::$_"	2355	Symbol::delete_package "safe::$_"
1206	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2356	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1207		2357
1208	# remove register_script_function callbacks
1209	# TODO
1210
1211	# unload cf.pm "a bit"	2358	warn "unload cf.pm \"a bit\"";
1212	delete $INC{"cf.pm"};	2359	delete $INC{"cf.pm"};
1213		2360
1214	# don't, removes xs symbols, too,	2361	# don't, removes xs symbols, too,
1215	# and global variables created in xs	2362	# and global variables created in xs
1216	#Symbol::delete_package __PACKAGE__;	2363	#Symbol::delete_package __PACKAGE__;
1217		2364
1218	# reload cf.pm
1219	$msg->("reloading cf.pm");	2365	warn "reloading cf.pm";
1220	require cf;	2366	require cf;
		2367	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1221		2368
1222	# load config and database again	2369	warn "load config and database again";
1223	cf::cfg_load;	2370	cf::cfg_load;
1224	cf::db_load;	2371	cf::db_load;
1225		2372
1226	# load extensions	2373	warn "load extensions";
1227	$msg->("load extensions");
1228	cf::load_extensions;	2374	cf::load_extensions;
1229		2375
1230	# reattach attachments to objects	2376	warn "reattach attachments to objects/players";
1231	$msg->("reattach");
1232	_global_reattach;	2377	_global_reattach;
		2378	warn "reattach attachments to maps";
		2379	reattach $_ for values %MAP;
1233	};	2380	};
1234	$msg->($@) if $@;
1235		2381
1236	$msg->("reloaded");	2382	if ($@) {
		2383	warn $@;
		2384	warn "error while reloading, exiting.";
		2385	exit 1;
		2386	}
		2387
		2388	warn "reloaded";
1237	};	2389	};
1238		2390
1239	sub perl_reload() {
1240	_perl_reload {
1241	warn $_[0];
1242	print "$_[0]\n";
1243	};
1244	}
1245
1246	register "<global>", __PACKAGE__;
1247
1248	register_command "perl-reload" => sub {	2391	register_command "reload" => sub {
1249	my ($who, $arg) = @_;	2392	my ($who, $arg) = @_;
1250		2393
1251	if ($who->flag (FLAG_WIZ)) {	2394	if ($who->flag (FLAG_WIZ)) {
1252	_perl_reload {	2395	$who->message ("start of reload.");
1253	warn $_[0];	2396	reload;
1254	$who->message ($_[0]);	2397	$who->message ("end of reload.");
1255	};
1256	}	2398	}
1257	};	2399	};
1258		2400
1259	unshift @INC, $LIBDIR;	2401	unshift @INC, $LIBDIR;
1260		2402
1261	$TICK_WATCHER = Event->timer (	2403	$TICK_WATCHER = Event->timer (
		2404	reentrant => 0,
1262	prio => 0,	2405	prio => 0,
1263	at => $NEXT_TICK || 1,	2406	at => $NEXT_TICK || $TICK,
1264	data => WF_AUTOCANCEL,	2407	data => WF_AUTOCANCEL,
1265	cb => sub {	2408	cb => sub {
		2409	$NOW = Event::time;
		2410
1266	cf::server_tick; # one server iteration	2411	cf::server_tick; # one server iteration
1267		2412	$RUNTIME += $TICK;
1268	my $NOW = Event::time;
1269	$NEXT_TICK += $TICK;	2413	$NEXT_TICK += $TICK;
1270		2414
		2415	$WAIT_FOR_TICK->broadcast;
		2416	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2417
1271	# if we are delayed by four ticks or more, skip them all	2418	# if we are delayed by four ticks or more, skip them all
1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2419	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1273		2420
1274	$TICK_WATCHER->at ($NEXT_TICK);	2421	$TICK_WATCHER->at ($NEXT_TICK);
1275	$TICK_WATCHER->start;	2422	$TICK_WATCHER->start;
1276	},	2423	},
1277	);	2424	);
1278		2425
1279	IO::AIO::max_poll_time $TICK * 0.2;	2426	IO::AIO::max_poll_time $TICK * 0.2;
1280		2427
		2428	$AIO_POLL_WATCHER = Event->io (
1281	Event->io (fd => IO::AIO::poll_fileno,	2429	fd => IO::AIO::poll_fileno,
1282	poll => 'r',	2430	poll => 'r',
1283	prio => 5,	2431	prio => 5,
1284	data => WF_AUTOCANCEL,	2432	data => WF_AUTOCANCEL,
1285	cb => \&IO::AIO::poll_cb);	2433	cb => \&IO::AIO::poll_cb,
		2434	);
		2435
		2436	$WRITE_RUNTIME_WATCHER = Event->timer (
		2437	data => WF_AUTOCANCEL,
		2438	after => 0,
		2439	interval => 10,
		2440	cb => sub {
		2441	(Coro::unblock_sub {
		2442	write_runtime
		2443	or warn "ERROR: unable to write runtime file: $!";
		2444	})->();
		2445	},
		2446	);
		2447
		2448	END { cf::emergency_save }
1286		2449
1287	1	2450	1
1288		2451

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