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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.211 by root, Tue Feb 13 16:23:32 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 3.3;	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	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
185		294
186	=item cf::sync_job { BLOCK }	295	=item cf::sync_job { BLOCK }
187		296
188	The design of crossfire+ requires that the main coro ($Coro::main) is	297	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	298	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	306	=cut
198		307
199	sub sync_job(&) {	308	sub sync_job(&) {
200	my ($job) = @_;	309	my ($job) = @_;
201		310
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
212	# TODO: use suspend/resume instead	315	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
		327
215	while ($busy) {	328	while ($busy) {
216	Coro::cede_notself;	329	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	330	}
		331
		332	wantarray ? @res : $res[0]
219	} else {	333	} else {
220	$coro->join;	334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
221	}	337	}
222
223	wantarray ? @res : $res[0]
224	}	338	}
225		339
226	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
227		341
228	Creates and returns a new coro. This coro is automcatially being canceled	342	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
230		344
231	=cut	345	=cut
232		346
233	sub coro(&) {	347	sub async_ext(&) {
234	my $cb = shift;	348	my $cb = shift;
235		349
236	my $coro; $coro = async {	350	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		351
243	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
245	});	354	});
246	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
247		356
248	$coro	357	$coro
249	}	358	}
250		359
251	sub write_runtime {	360	sub write_runtime {
		361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
		362
252	my $runtime = cf::localdir . "/runtime";	363	my $runtime = cf::localdir . "/runtime";
253		364
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	366	or return;
256		367
257	my $value = $cf::RUNTIME;	368	my $value = $cf::RUNTIME + 90 + 10;
		369	# 10 is the runtime save interval, for a monotonic clock
		370	# 60 allows for the watchdog to kill the server.
		371
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	372	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	373	and return;
260		374
		375	# always fsync - this file is important
261	aio_fsync $fh	376	aio_fsync $fh
262	and return;	377	and return;
263		378
264	close $fh	379	close $fh
265	or return;	380	or return;
…		…
271	}	386	}
272		387
273	=back	388	=back
274		389
275	=cut	390	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		391
387	#############################################################################	392	#############################################################################
388		393
389	=head2 ATTACHABLE OBJECTS	394	=head2 ATTACHABLE OBJECTS
390		395
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	521	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	522	our @CB_MAP = ();
518		523
519	my %attachment;	524	my %attachment;
520		525
		526	sub cf::attachable::thawer_merge {
		527	# simply override everything except _meta
		528	local $_[0]{_meta};
		529	%{$_[0]} = %{$_[1]};
		530	}
		531
521	sub _attach_cb($$$$) {	532	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	533	my ($registry, $event, $prio, $cb) = @_;
523		534
524	use sort 'stable';	535	use sort 'stable';
525		536
…		…
696	# object support	707	# object support
697		708
698	sub reattach {	709	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	710	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	711	my ($obj) = @_;
		712
		713	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		714
702	my $registry = $obj->registry;	715	my $registry = $obj->registry;
703		716
704	@$registry = ();	717	@$registry = ();
705		718
…		…
752	$filename, length $$rdata, scalar @$objs;	765	$filename, length $$rdata, scalar @$objs;
753		766
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	767	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	768	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	769	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	770	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	771	close $fh;
759		772
760	if (@$objs) {	773	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	774	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	775	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	776	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	777	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	778	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	779	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	780	aio_rename "$filename.pst~", "$filename.pst";
768	}	781	}
769	} else {	782	} else {
770	aio_unlink "$filename.pst";	783	aio_unlink "$filename.pst";
…		…
776	}	789	}
777	} else {	790	} else {
778	aio_unlink $filename;	791	aio_unlink $filename;
779	aio_unlink "$filename.pst";	792	aio_unlink "$filename.pst";
780	}	793	}
		794
		795	#d##TODO# nuke non .map-files if exist
		796	if ($filename =~ s/\.map$//) {
		797	aio_unlink $filename;
		798	aio_unlink "$filename.pst";
		799	}
781	}	800	}
782	}	801	}
783		802
784	sub object_freezer_as_string {	803	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	804	my ($rdata, $objs) = @_;
…		…
791		810
792	sub object_thawer_load {	811	sub object_thawer_load {
793	my ($filename) = @_;	812	my ($filename) = @_;
794		813
795	my ($data, $av);	814	my ($data, $av);
		815
		816	#d#TODO remove .map if file does not exist
		817	aio_stat $filename and $filename =~ s/\.map$//;
796		818
797	(aio_load $filename, $data) >= 0	819	(aio_load $filename, $data) >= 0
798	or return;	820	or return;
799		821
800	unless (aio_stat "$filename.pst") {	822	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	823	(aio_load "$filename.pst", $av) >= 0
802	or return;	824	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	825	$av = eval { (Storable::thaw $av)->{objs} };
804	}	826	}
805		827
		828	warn sprintf "loading %s (%d)\n",
		829	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	830	return ($data, $av);
807	}	831	}
808		832
809	#############################################################################	833	#############################################################################
810	# command handling &c	834	# command handling &c
…		…
835	=cut	859	=cut
836		860
837	sub register_extcmd {	861	sub register_extcmd {
838	my ($name, $cb) = @_;	862	my ($name, $cb) = @_;
839		863
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	864	$EXTCMD{$name} = $cb;
844	}	865	}
845		866
846	cf::player->attach (	867	cf::player->attach (
847	on_command => sub {	868	on_command => sub {
848	my ($pl, $name, $params) = @_;	869	my ($pl, $name, $params) = @_;
…		…
861		882
862	my $msg = eval { from_json $buf };	883	my $msg = eval { from_json $buf };
863		884
864	if (ref $msg) {	885	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	886	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	887	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	888	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	889	}
869	}	890	}
870	} else {	891	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	892	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		894
874	cf::override;	895	cf::override;
875	},	896	},
876	);	897	);
877		898
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	899	sub load_extension {
885	my ($path) = @_;	900	my ($path) = @_;
886		901
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	903	my $base = $1;
889	my $pkg = $1;	904	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	905	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	906	$pkg = "ext::$pkg";
892		907
893	warn "loading '$path' into '$pkg'\n";	908	warn "... loading '$path' into '$pkg'\n";
894		909
895	open my $fh, "<:utf8", $path	910	open my $fh, "<:utf8", $path
896	or die "$path: $!";	911	or die "$path: $!";
897		912
898	my $source =	913	my $source =
899	"package $pkg; use strict; use utf8;\n"	914	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	915	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	916	. (do { local $/; <$fh> })
902	. "\n};\n1";	917	. "\n};\n1";
903		918
904	eval $source	919	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	920	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	921	: "extension disabled.\n";
907		922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	923	warn $@;
909	$ext_pkg{$base} = $pkg;	924	warn "mandatory extension failed to load, exiting.\n";
910		925	exit 1;
911	# no strict 'refs';	926	}
912	# @{"$pkg\::ISA"} = ext::;	927	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	928	}
927		929
928	# remove commands	930	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	931	}
953		932
954	sub load_extensions {	933	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	934	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	935	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	939	} or warn "$ext not loaded: $@";
961	}	940	}
962	}	941	}
963		942
964	#############################################################################	943	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		944
1002	=head2 CORE EXTENSIONS	945	=head2 CORE EXTENSIONS
1003		946
1004	Functions and methods that extend core crossfire objects.	947	Functions and methods that extend core crossfire objects.
1005		948
		949	=cut
		950
		951	package cf::player;
		952
		953	use Coro::AIO;
		954
1006	=head3 cf::player	955	=head3 cf::player
1007		956
1008	=over 4	957	=over 4
1009		958
1010	=item cf::player::exists $login	959	=item cf::player::find $login
1011		960
1012	Returns true when the given account exists.	961	Returns the given player object, loading it if necessary (might block).
1013		962
1014	=cut	963	=cut
1015		964
1016	sub cf::player::exists($) {	965	sub playerdir($) {
1017	cf::player::find $_[0]	966	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	967	. "/"
		968	. cf::playerdir
		969	. "/"
		970	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		971	}
		972
		973	sub path($) {
		974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		975
		976	(playerdir $login) . "/$login.pl"
		977	}
		978
		979	sub find_active($) {
		980	$cf::PLAYER{$_[0]}
		981	and $cf::PLAYER{$_[0]}->active
		982	and $cf::PLAYER{$_[0]}
		983	}
		984
		985	sub exists($) {
		986	my ($login) = @_;
		987
		988	$cf::PLAYER{$login}
		989	or cf::sync_job { !aio_stat path $login }
		990	}
		991
		992	sub find($) {
		993	return $cf::PLAYER{$_[0]} || do {
		994	my $login = $_[0];
		995
		996	my $guard = cf::lock_acquire "user_find:$login";
		997
		998	$cf::PLAYER{$_[0]} || do {
		999	my $pl = load_pl path $login
		1000	or return;
		1001	$cf::PLAYER{$login} = $pl
		1002	}
		1003	}
		1004	}
		1005
		1006	sub save($) {
		1007	my ($pl) = @_;
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	my $path = path $pl;
		1012	my $guard = cf::lock_acquire "user_save:$path";
		1013
		1014	return if $pl->{deny_save};
		1015
		1016	aio_mkdir playerdir $pl, 0770;
		1017	$pl->{last_save} = $cf::RUNTIME;
		1018
		1019	$pl->save_pl ($path);
		1020	Coro::cede;
		1021	}
		1022
		1023	sub new($) {
		1024	my ($login) = @_;
		1025
		1026	my $self = create;
		1027
		1028	$self->ob->name ($login);
		1029	$self->{deny_save} = 1;
		1030
		1031	$cf::PLAYER{$login} = $self;
		1032
		1033	$self
		1034	}
		1035
		1036	=item $pl->quit_character
		1037
		1038	Nukes the player without looking back. If logged in, the connection will
		1039	be destroyed. May block for a long time.
		1040
		1041	=cut
		1042
		1043	sub quit_character {
		1044	my ($pl) = @_;
		1045
		1046	$pl->{deny_save} = 1;
		1047	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1048
		1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1050	$pl->deactivate;
		1051	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1052	$pl->ns->destroy if $pl->ns;
		1053
		1054	my $path = playerdir $pl;
		1055	my $temp = "$path~$cf::RUNTIME~deleting~";
		1056	aio_rename $path, $temp;
		1057	delete $cf::PLAYER{$pl->ob->name};
		1058	$pl->destroy;
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item cf::player::list_logins
		1063
		1064	Returns am arrayref of all valid playernames in the system, can take a
		1065	while and may block, so not sync_job-capable, ever.
		1066
		1067	=cut
		1068
		1069	sub list_logins {
		1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1071	or return [];
		1072
		1073	my @logins;
		1074
		1075	for my $login (@$dirs) {
		1076	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1077	aio_read $fh, 0, 512, my $buf, 0 or next;
		1078	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1079
		1080	utf8::decode $login;
		1081	push @logins, $login;
		1082	}
		1083
		1084	\@logins
		1085	}
		1086
		1087	=item $player->maps
		1088
		1089	Returns an arrayref of map paths that are private for this
		1090	player. May block.
		1091
		1092	=cut
		1093
		1094	sub maps($) {
		1095	my ($pl) = @_;
		1096
		1097	$pl = ref $pl ? $pl->ob->name : $pl;
		1098
		1099	my $files = aio_readdir playerdir $pl
		1100	or return;
		1101
		1102	my @paths;
		1103
		1104	for (@$files) {
		1105	utf8::decode $_;
		1106	next if /\.(?:pl|pst)$/;
		1107	next unless /^$PATH_SEP/o;
		1108
		1109	push @paths, cf::map::normalise "~$pl/$_";
		1110	}
		1111
		1112	\@paths
1019	}	1113	}
1020		1114
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1115	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1116
1023	Sends an ext reply to the player.	1117	Sends an ext reply to the player.
1024		1118
1025	=cut	1119	=cut
1026		1120
1027	sub cf::player::ext_reply($$$%) {	1121	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1122	my ($self, $id, %msg) = @_;
1029		1123
1030	$msg{msgid} = $id;	1124	$msg{msgid} = $id;
1031		1125
1032	$self->send ("ext " . to_json \%msg);	1126	$self->send ("ext " . cf::to_json \%msg);
1033	}	1127	}
		1128
		1129	package cf;
1034		1130
1035	=back	1131	=back
1036		1132
1037		1133
1038	=head3 cf::map	1134	=head3 cf::map
…		…
1044	package cf::map;	1140	package cf::map;
1045		1141
1046	use Fcntl;	1142	use Fcntl;
1047	use Coro::AIO;	1143	use Coro::AIO;
1048		1144
		1145	use overload
		1146	'""' => \&as_string,
		1147	fallback => 1;
		1148
1049	our $MAX_RESET = 7200;	1149	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1150	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1151
1054	sub generate_random_map {	1152	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1153	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1154	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1155	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1156	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1157	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1158	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1159	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1160	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1161	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1162	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1163	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1164	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1165	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1166	(cf::region::find $rmp->{region}), $rmp->{custom}
		1167	)
		1168	}
		1169
		1170	=item cf::map->register ($regex, $prio)
		1171
		1172	Register a handler for the map path matching the given regex at the
		1173	givne priority (higher is better, built-in handlers have priority 0, the
		1174	default).
		1175
		1176	=cut
		1177
		1178	sub register {
		1179	my (undef, $regex, $prio) = @_;
		1180	my $pkg = caller;
		1181
		1182	no strict;
		1183	push @{"$pkg\::ISA"}, __PACKAGE__;
		1184
		1185	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1186	}
		1187
		1188	# also paths starting with '/'
		1189	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1190
		1191	sub thawer_merge {
		1192	my ($self, $merge) = @_;
		1193
		1194	# we have to keep some variables in memory intact
		1195	local $self->{path};
		1196	local $self->{load_path};
		1197	local $self->{deny_save};
		1198	local $self->{deny_reset};
		1199
		1200	$self->SUPER::thawer_merge ($merge);
		1201	}
		1202
		1203	sub normalise {
		1204	my ($path, $base) = @_;
		1205
		1206	$path = "$path"; # make sure its a string
		1207
		1208	$path =~ s/\.map$//;
		1209
		1210	# map plan:
		1211	#
		1212	# /! non-realised random map exit (special hack!)
		1213	# {... are special paths that are not being touched
		1214	# ?xxx/... are special absolute paths
		1215	# ?random/... random maps
		1216	# /... normal maps
		1217	# ~user/... per-player map of a specific user
		1218
		1219	$path =~ s/$PATH_SEP/\//go;
		1220
		1221	# treat it as relative path if it starts with
		1222	# something that looks reasonable
		1223	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1224	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1225
		1226	$base =~ s{[^/]+/?$}{};
		1227	$path = "$base/$path";
		1228	}
		1229
		1230	for ($path) {
		1231	redo if s{//}{/};
		1232	redo if s{/\.?/}{/};
		1233	redo if s{/[^/]+/\.\./}{/};
		1234	}
		1235
		1236	$path
		1237	}
		1238
		1239	sub new_from_path {
		1240	my (undef, $path, $base) = @_;
		1241
		1242	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1243
		1244	$path = normalise $path, $base;
		1245
		1246	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1247	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1248	my $self = bless cf::map::new, $pkg;
		1249	$self->{path} = $path; $self->path ($path);
		1250	$self->init; # pass $1 etc.
		1251	return $self;
		1252	}
		1253	}
		1254
		1255	Carp::carp "unable to resolve path '$path' (base '$base').";
		1256	()
		1257	}
		1258
		1259	sub init {
		1260	my ($self) = @_;
		1261
		1262	$self
		1263	}
		1264
		1265	sub as_string {
		1266	my ($self) = @_;
		1267
		1268	"$self->{path}"
		1269	}
		1270
		1271	# the displayed name, this is a one way mapping
		1272	sub visible_name {
		1273	&as_string
		1274	}
		1275
		1276	# the original (read-only) location
		1277	sub load_path {
		1278	my ($self) = @_;
		1279
		1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1281	}
		1282
		1283	# the temporary/swap location
		1284	sub save_path {
		1285	my ($self) = @_;
		1286
		1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1289	}
		1290
		1291	# the unique path, undef == no special unique path
		1292	sub uniq_path {
		1293	my ($self) = @_;
		1294
		1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1297	}
1072		1298
1073	# and all this just because we cannot iterate over	1299	# and all this just because we cannot iterate over
1074	# all maps in C++...	1300	# all maps in C++...
1075	sub change_all_map_light {	1301	sub change_all_map_light {
1076	my ($change) = @_;	1302	my ($change) = @_;
1077		1303
1078	$_->change_map_light ($change) for values %cf::MAP;	1304	$_->change_map_light ($change)
		1305	for grep $_->outdoor, values %cf::MAP;
1079	}	1306	}
1080		1307
		1308	sub unlink_save {
		1309	my ($self) = @_;
		1310
		1311	utf8::encode (my $save = $self->save_path);
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1314
		1315	#d#TODO remove .map and also nuke
		1316	$save =~ s/\.map// or return;#d#
		1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1319	}
		1320
1081	sub try_load_header($) {	1321	sub load_header_from($) {
1082	my ($path) = @_;	1322	my ($self, $path) = @_;
1083		1323
1084	utf8::encode $path;	1324	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1325	#aio_open $path, O_RDONLY, 0
		1326	# or return;
		1327
		1328	$self->_load_header ($path)
1086	or return;	1329	or return;
1087		1330
1088	my $map = cf::map::new	1331	$self->{load_path} = $path;
		1332
		1333	1
		1334	}
		1335
		1336	sub load_header_orig {
		1337	my ($self) = @_;
		1338
		1339	$self->load_header_from ($self->load_path)
		1340	}
		1341
		1342	sub load_header_temp {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->save_path)
		1346	}
		1347
		1348	sub prepare_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->last_access ((delete $self->{last_access})
		1352	|| $cf::RUNTIME); #d#
		1353	# safety
		1354	$self->{instantiate_time} = $cf::RUNTIME
		1355	if $self->{instantiate_time} > $cf::RUNTIME;
		1356	}
		1357
		1358	sub prepare_orig {
		1359	my ($self) = @_;
		1360
		1361	$self->{load_original} = 1;
		1362	$self->{instantiate_time} = $cf::RUNTIME;
		1363	$self->last_access ($cf::RUNTIME);
		1364	$self->instantiate;
		1365	}
		1366
		1367	sub load_header {
		1368	my ($self) = @_;
		1369
		1370	if ($self->load_header_temp) {
		1371	$self->prepare_temp;
		1372	} else {
		1373	$self->load_header_orig
1089	or return;	1374	or return;
		1375	$self->prepare_orig;
		1376	}
1090		1377
1091	$map->load_header ($path)	1378	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1379	}
1099		1380
		1381	sub find;
1100	sub find_map {	1382	sub find {
1101	my ($path, $origin) = @_;	1383	my ($path, $origin) = @_;
1102		1384
1103	#warn "find_map<$path,$origin>\n";#d#	1385	$path = normalise $path, $origin && $origin->path;
1104		1386
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1387	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1388
1108	$cf::MAP{$key} || do {	1389	$cf::MAP{$path} || do {
1109	# do it the slow way	1390	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1391	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1392	or return;
1124		1393
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1394	$map->{last_save} = $cf::RUNTIME;
1136		1395
1137	$map->reset if $map->should_reset;	1396	$map->load_header
		1397	or return;
1138		1398
		1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1400	# doing this can freeze the server in a sync job, obviously
		1401	#$cf::WAIT_FOR_TICK->wait;
		1402	$map->reset;
		1403	undef $guard;
		1404	return find $path;
		1405	}
		1406
1139	$cf::MAP{$key} = $map	1407	$cf::MAP{$path} = $map
1140	}	1408	}
1141	}	1409	}
		1410
		1411	sub pre_load { }
		1412	sub post_load { }
1142		1413
1143	sub load {	1414	sub load {
1144	my ($self) = @_;	1415	my ($self) = @_;
1145		1416
		1417	local $self->{deny_reset} = 1; # loading can take a long time
		1418
		1419	my $path = $self->{path};
		1420	my $guard = cf::lock_acquire "map_load:$path";
		1421
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1422	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1423
1148	$self->in_memory (cf::MAP_LOADING);	1424	$self->in_memory (cf::MAP_LOADING);
1149		1425
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1426	$self->alloc;
		1427
		1428	$self->pre_load;
		1429
1153	$self->load_objects ($self->{load_path}, 1)	1430	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1431	or return;
1155		1432
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1434	if delete $self->{load_original};
1157		1435
1158	if (my $uniq = $path->uniq_path) {	1436	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1437	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1438	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1439	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1440	$self->_load_objects ($uniq, 0);
1163	}	1441	}
1164	}	1442	}
		1443
		1444	Coro::cede;
1165		1445
1166	# now do the right thing for maps	1446	# now do the right thing for maps
1167	$self->link_multipart_objects;	1447	$self->link_multipart_objects;
1168		1448
1169	if ($self->{path}->is_style_map) {	1449	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1450	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1451	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1452	$self->update_buttons;
		1453	Coro::cede;
1176	$self->set_darkness_map;	1454	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1455	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1456	unless $self->difficulty;
		1457	Coro::cede;
1179	$self->activate;	1458	$self->activate;
1180	}	1459	}
1181		1460
		1461	$self->post_load;
		1462
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1463	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1464	}
1184		1465
1185	sub load_map_sync {	1466	sub customise_for {
		1467	my ($self, $ob) = @_;
		1468
		1469	return find "~" . $ob->name . "/" . $self->{path}
		1470	if $self->per_player;
		1471
		1472	$self
		1473	}
		1474
		1475	# find and load all maps in the 3x3 area around a map
		1476	sub load_diag {
		1477	my ($map) = @_;
		1478
		1479	my @diag; # diagonal neighbours
		1480
		1481	for (0 .. 3) {
		1482	my $neigh = $map->tile_path ($_)
		1483	or next;
		1484	$neigh = find $neigh, $map
		1485	or next;
		1486	$neigh->load;
		1487
		1488	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1489	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1490	}
		1491
		1492	for (@diag) {
		1493	my $neigh = find @$_
		1494	or next;
		1495	$neigh->load;
		1496	}
		1497	}
		1498
		1499	sub find_sync {
1186	my ($path, $origin) = @_;	1500	my ($path, $origin) = @_;
1187		1501
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1502	cf::sync_job { find $path, $origin }
		1503	}
1189		1504
1190	cf::sync_job {	1505	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1506	my ($map) = @_;
1192	or return;	1507
		1508	cf::sync_job { $map->load };
		1509	}
		1510
		1511	our %MAP_PREFETCH;
		1512	our $MAP_PREFETCHER = undef;
		1513
		1514	sub find_async {
		1515	my ($path, $origin) = @_;
		1516
		1517	$path = normalise $path, $origin && $origin->{path};
		1518
		1519	if (my $map = $cf::MAP{$path}) {
		1520	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1521	}
		1522
		1523	undef $MAP_PREFETCH{$path};
		1524	$MAP_PREFETCHER ||= cf::async {
		1525	while (%MAP_PREFETCH) {
		1526	for my $path (keys %MAP_PREFETCH) {
		1527	my $map = find $path
		1528	or next;
1193	$map->load;	1529	$map->load;
1194	$map	1530
		1531	delete $MAP_PREFETCH{$path};
		1532	}
		1533	}
		1534	undef $MAP_PREFETCHER;
1195	}	1535	};
		1536	$MAP_PREFETCHER->prio (6);
		1537
		1538	()
1196	}	1539	}
1197		1540
1198	sub save {	1541	sub save {
1199	my ($self) = @_;	1542	my ($self) = @_;
1200		1543
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1544	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1545
1204	$self->{last_save} = $cf::RUNTIME;	1546	$self->{last_save} = $cf::RUNTIME;
1205		1547
1206	return unless $self->dirty;	1548	return unless $self->dirty;
1207		1549
		1550	my $save = $self->save_path; utf8::encode $save;
		1551	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1552
1208	$self->{load_path} = $save;	1553	$self->{load_path} = $save;
1209		1554
1210	return if $self->{deny_save};	1555	return if $self->{deny_save};
1211		1556
1212	warn "saving map ", $self->path;	1557	local $self->{last_access} = $self->last_access;#d#
		1558
		1559	cf::async {
		1560	$_->contr->save for $self->players;
		1561	};
1213		1562
1214	if ($uniq) {	1563	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1564	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1565	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1566	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1567	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1568	}
1220	}	1569	}
1221		1570
1222	sub swap_out {	1571	sub swap_out {
1223	my ($self) = @_;	1572	my ($self) = @_;
		1573
		1574	# save first because save cedes
		1575	$self->save;
		1576
		1577	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1578
1225	return if $self->players;	1579	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1580	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1581	return if $self->{deny_save};
1228		1582
1229	$self->save;
1230	$self->clear;	1583	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1584	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1585	}
1233		1586
		1587	sub reset_at {
		1588	my ($self) = @_;
		1589
		1590	# TODO: safety, remove and allow resettable per-player maps
		1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1592	return 1e99 if $self->{deny_reset};
		1593
		1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1595	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1596
		1597	$time + $to
		1598	}
		1599
1234	sub should_reset {	1600	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1601	my ($self) = @_;
1251		1602
1252	utf8::encode (my $save = $self->{path}->save_path);	1603	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1604	}
1256		1605
1257	sub reset {	1606	sub reset {
1258	my ($self) = @_;	1607	my ($self) = @_;
1259		1608
		1609	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1610
1260	return if $self->players;	1611	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1612	return if $self->isa ("ext::map_per_player");#d#
1262		1613
1263	warn "resetting map ", $self->path;#d#	1614	warn "resetting map ", $self->path;#d#
1264		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617
		1618	# need to save uniques path
		1619	unless ($self->{deny_save}) {
		1620	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1621
		1622	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1623	if $uniq;
		1624	}
		1625
1265	delete $cf::MAP{$self->path};	1626	delete $cf::MAP{$self->path};
		1627
		1628	$self->clear;
1266		1629
1267	$_->clear_links_to ($self) for values %cf::MAP;	1630	$_->clear_links_to ($self) for values %cf::MAP;
1268		1631
1269	$self->unlink_save;	1632	$self->unlink_save;
1270	$self->destroy;	1633	$self->destroy;
1271	}	1634	}
1272		1635
1273	sub customise_for {	1636	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1637
1276	if ($map->per_player) {	1638	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1639	my ($self) = @_;
1278	}
1279		1640
1280	$map	1641	delete $cf::MAP{$self->path};
1281	}
1282		1642
1283	sub emergency_save {	1643	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1644
1286	warn "enter emergency map save\n";	1645	bless $self, "cf::map";
		1646	delete $self->{deny_reset};
		1647	$self->{deny_save} = 1;
		1648	$self->reset_timeout (1);
		1649	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1650
1288	cf::sync_job {	1651	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1652
1290	$_->save for values %cf::MAP;	1653	$self->reset; # polite request, might not happen
		1654	}
		1655
		1656	=item cf::map::unique_maps
		1657
		1658	Returns an arrayref of paths of all shared maps that have
		1659	instantiated unique items. May block.
		1660
		1661	=cut
		1662
		1663	sub unique_maps() {
		1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1665	or return;
		1666
		1667	my @paths;
		1668
		1669	for (@$files) {
		1670	utf8::decode $_;
		1671	next if /\.pst$/;
		1672	next unless /^$PATH_SEP/o;
		1673
		1674	push @paths, cf::map::normalise $_;
1291	};	1675	}
1292		1676
1293	warn "end emergency map save\n";	1677	\@paths
1294	}	1678	}
1295		1679
1296	package cf;	1680	package cf;
1297		1681
1298	=back	1682	=back
1299		1683
		1684	=head3 cf::object
		1685
		1686	=cut
		1687
		1688	package cf::object;
		1689
		1690	=over 4
		1691
		1692	=item $ob->inv_recursive
		1693
		1694	Returns the inventory of the object _and_ their inventories, recursively.
		1695
		1696	=cut
		1697
		1698	sub inv_recursive_;
		1699	sub inv_recursive_ {
		1700	map { $_, inv_recursive_ $_->inv } @_
		1701	}
		1702
		1703	sub inv_recursive {
		1704	inv_recursive_ inv $_[0]
		1705	}
		1706
		1707	package cf;
		1708
		1709	=back
1300		1710
1301	=head3 cf::object::player	1711	=head3 cf::object::player
1302		1712
1303	=over 4	1713	=over 4
1304		1714
…		…
1340	(ref $cf::CFG{"may_$access"}	1750	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1751	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1752	: $cf::CFG{"may_$access"})
1343	}	1753	}
1344		1754
		1755	=item $player_object->enter_link
		1756
		1757	Freezes the player and moves him/her to a special map (C<{link}>).
		1758
		1759	The player should be reasonably safe there for short amounts of time. You
		1760	I<MUST> call C<leave_link> as soon as possible, though.
		1761
		1762	Will never block.
		1763
		1764	=item $player_object->leave_link ($map, $x, $y)
		1765
		1766	Moves the player out of the special C<{link}> map onto the specified
		1767	map. If the map is not valid (or omitted), the player will be moved back
		1768	to the location he/she was before the call to C<enter_link>, or, if that
		1769	fails, to the emergency map position.
		1770
		1771	Might block.
		1772
		1773	=cut
		1774
		1775	sub link_map {
		1776	unless ($LINK_MAP) {
		1777	$LINK_MAP = cf::map::find "{link}"
		1778	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1779	$LINK_MAP->load;
		1780	}
		1781
		1782	$LINK_MAP
		1783	}
		1784
1345	sub cf::object::player::enter_link {	1785	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1786	my ($self) = @_;
1347		1787
1348	return if $self->map == $LINK_MAP;	1788	$self->deactivate_recursive;
1349		1789
		1790	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1791
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1793	if $self->map;
1352		1794
1353	$self->enter_map ($LINK_MAP, 20, 20);	1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1796	}
1356		1797
1357	sub cf::object::player::leave_link {	1798	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1799	my ($self, $map, $x, $y) = @_;
1359		1800
1360	my $link_pos = delete $self->{_link_pos};	1801	my $link_pos = delete $self->{_link_pos};
1361		1802
1362	unless ($map) {	1803	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1804	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1805	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1806	$map = cf::map::find $map;
1368		1807
1369	unless ($map) {	1808	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1809	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1810	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1811	or die "FATAL: cannot load emergency map\n";
1373	}	1812	}
1374	}	1813	}
1375		1814
1376	($x, $y) = (-1, -1)	1815	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1818	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1819	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1820	if $x <=0 && $y <= 0;
1382		1821
1383	$map->load;	1822	$map->load;
		1823	$map->load_diag;
1384		1824
		1825	return unless $self->contr->active;
1385	$self->activate_recursive;	1826	$self->activate_recursive;
1386	$self->enter_map ($map, $x, $y);	1827	$self->enter_map ($map, $x, $y);
1387	}	1828	}
1388		1829
		1830	cf::player->attach (
		1831	on_logout => sub {
		1832	my ($pl) = @_;
		1833
		1834	# abort map switching before logout
		1835	if ($pl->ob->{_link_pos}) {
		1836	cf::sync_job {
		1837	$pl->ob->leave_link
		1838	};
		1839	}
		1840	},
		1841	on_login => sub {
		1842	my ($pl) = @_;
		1843
		1844	# try to abort aborted map switching on player login :)
		1845	# should happen only on crashes
		1846	if ($pl->ob->{_link_pos}) {
		1847	$pl->ob->enter_link;
		1848	(async {
		1849	# we need this sleep as the login has a concurrent enter_exit running
		1850	# and this sleep increases chances of the player not ending up in scorn
		1851	$pl->ob->reply (undef,
		1852	"There was an internal problem at your last logout, "
		1853	. "the server will try to bring you to your intended destination in a second.",
		1854	cf::NDI_RED);
		1855	Coro::Timer::sleep 1;
		1856	$pl->ob->leave_link;
		1857	})->prio (2);
		1858	}
		1859	},
		1860	);
		1861
1389	=item $player_object->goto_map ($map, $x, $y)	1862	=item $player_object->goto ($path, $x, $y)
1390		1863
1391	=cut	1864	=cut
1392		1865
1393	sub cf::object::player::goto_map {	1866	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1867	my ($self, $path, $x, $y) = @_;
1395		1868
1396	$self->enter_link;	1869	$self->enter_link;
1397		1870
1398	(Coro::async {	1871	(async {
1399	$path = new cf::path $path;	1872	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1873	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1874	$map = $map->customise_for ($self) if $map;
1403
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1875	$map
		1876	} or
		1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1878
1407	$self->leave_link ($map, $x, $y);	1879	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1880	})->prio (1);
1409	}	1881	}
1410		1882
…		…
1414		1886
1415	sub parse_random_map_params {	1887	sub parse_random_map_params {
1416	my ($spec) = @_;	1888	my ($spec) = @_;
1417		1889
1418	my $rmp = { # defaults	1890	my $rmp = { # defaults
1419	xsize => 10,	1891	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1892	ysize => (cf::rndm 15, 40),
		1893	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1894	#layout => string,
1421	};	1895	};
1422		1896
1423	for (split /\n/, $spec) {	1897	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1898	my ($k, $v) = split /\s+/, $_, 2;
1425		1899
…		…
1429	$rmp	1903	$rmp
1430	}	1904	}
1431		1905
1432	sub prepare_random_map {	1906	sub prepare_random_map {
1433	my ($exit) = @_;	1907	my ($exit) = @_;
		1908
		1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1910
1435	# all this does is basically replace the /! path by	1911	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1912	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1913	# that depends on the exit object
1438		1914
1439	my $rmp = parse_random_map_params $exit->msg;	1915	my $rmp = parse_random_map_params $exit->msg;
1440		1916
1441	if ($exit->map) {	1917	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	1918	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	1919	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	1920	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	1921	$rmp->{origin_y} = $exit->y;
1446	}	1922	}
1447		1923
1448	$rmp->{random_seed} ||= $exit->random_seed;	1924	$rmp->{random_seed} ||= $exit->random_seed;
1449		1925
1450	my $data = cf::to_json $rmp;	1926	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1927	my $md5 = Digest::MD5::md5_hex $data;
		1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1929
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	1931	aio_write $fh, 0, (length $data), $data, 0;
		1932	undef $fh;
		1933	aio_rename "$meta~", $meta;
1455		1934
1456	$exit->slaying ("?random/$md5");	1935	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1936	$exit->msg (undef);
1458	}	1937	}
1459	}	1938	}
…		…
1461	sub cf::object::player::enter_exit {	1940	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1941	my ($self, $exit) = @_;
1463		1942
1464	return unless $self->type == cf::PLAYER;	1943	return unless $self->type == cf::PLAYER;
1465		1944
		1945	if ($exit->slaying eq "/!") {
		1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1947	cf::sync_job { prepare_random_map $exit };
		1948	}
		1949
		1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1951	my $hp = $exit->stats->hp;
		1952	my $sp = $exit->stats->sp;
		1953
1466	$self->enter_link;	1954	$self->enter_link;
1467		1955
1468	(Coro::async {	1956	(async {
		1957	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1958	unless (eval {
1470		1959	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		1960
1477	1;	1961	1;
1478	}) {	1962	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1963	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	1964	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	1965	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1966	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1967
1484	warn "ERROR in enter_exit: $@";	1968	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1969	$self->leave_link;
1486	}	1970	}
…		…
1537	on_reply => sub {	2021	on_reply => sub {
1538	my ($ns, $msg) = @_;	2022	my ($ns, $msg) = @_;
1539		2023
1540	# this weird shuffling is so that direct followup queries	2024	# this weird shuffling is so that direct followup queries
1541	# get handled first	2025	# get handled first
1542	my $queue = delete $ns->{query_queue};	2026	my $queue = delete $ns->{query_queue}
		2027	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2028
1544	(shift @$queue)->[1]->($msg);	2029	(shift @$queue)->[1]->($msg);
		2030	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2031
1546	push @{ $ns->{query_queue} }, @$queue;	2032	push @{ $ns->{query_queue} }, @$queue;
1547		2033
1548	if (@{ $ns->{query_queue} } == @$queue) {	2034	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2035	if (@$queue) {
…		…
1553	}	2039	}
1554	}	2040	}
1555	},	2041	},
1556	);	2042	);
1557		2043
1558	=item $client->coro (\&cb)	2044	=item $client->async (\&cb)
1559		2045
1560	Create a new coroutine, running the specified callback. The coroutine will	2046	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2047	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2048	or loss of connection).
1563		2049
1564	=cut	2050	=cut
1565		2051
1566	sub cf::client::coro {	2052	sub cf::client::async {
1567	my ($self, $cb) = @_;	2053	my ($self, $cb) = @_;
1568		2054
1569	my $coro; $coro = async {	2055	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2056
1576	$coro->on_destroy (sub {	2057	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2058	delete $self->{_coro}{$coro+0};
1578	});	2059	});
1579		2060
…		…
1715	The parameter C<$family> should best start with the name of the extension	2196	The parameter C<$family> should best start with the name of the extension
1716	using it, it should be unique.	2197	using it, it should be unique.
1717		2198
1718	=over 4	2199	=over 4
1719		2200
1720	=item $hashref = cf::db_get $family
1721
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key	2201	=item $value = cf::db_get $family => $key
1727		2202
1728	Returns a single value from the database	2203	Returns a single value from the database.
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734		2204
1735	=item cf::db_put $family => $key => $value	2205	=item cf::db_put $family => $key => $value
1736		2206
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2207	Stores the given C<$value> in the family.
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747		2208
1748	=cut	2209	=cut
1749		2210
1750	our $DB;	2211	our $DB;
1751		2212
1752	{	2213	sub db_init {
		2214	unless ($DB) {
		2215	$DB = BDB::db_create $DB_ENV;
		2216
		2217	cf::sync_job {
		2218	eval {
		2219	$DB->set_flags (BDB::CHKSUM);
		2220
		2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2223	cf::cleanup "db_open(db): $!" if $!;
		2224	};
		2225	cf::cleanup "db_open(db): $@" if $@;
		2226	};
		2227
1753	my $path = cf::localdir . "/database.pst";	2228	my $path = cf::localdir . "/database.pst";
		2229	if (stat $path) {
		2230	cf::sync_job {
		2231	my $pst = Storable::retrieve $path;
1754		2232
1755	sub db_load() {	2233	cf::db_put (board => data => $pst->{board});
1756	warn "loading database $path\n";#d# remove later	2234	cf::db_put (guildrules => data => $pst->{guildrules});
1757	$DB = stat $path ? Storable::retrieve $path : { };	2235	cf::db_put (rent => balance => $pst->{rent}{balance});
1758	}	2236	BDB::db_env_txn_checkpoint $DB_ENV;
1759		2237
1760	my $pid;	2238	unlink $path;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}	2239	};
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2240	}
1809	);	2241	}
		2242	}
		2243
		2244	sub db_get($$) {
		2245	my $key = "$_[0]/$_[1]";
		2246
		2247	cf::sync_job {
		2248	BDB::db_get $DB, undef, $key, my $data;
		2249
		2250	$! ? ()
		2251	: Compress::LZF::sthaw $data
		2252	}
		2253	}
		2254
		2255	sub db_put($$$) {
		2256	BDB::dbreq_pri 4;
		2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1810	}	2258	}
1811		2259
1812	#############################################################################	2260	#############################################################################
1813	# the server's main()	2261	# the server's init and main functions
		2262
		2263	sub load_resources {
		2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2265	or die "unable to load regions file\n";#d#
		2266	}
1814		2267
1815	sub cfg_load {	2268	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2269	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2270	or return;
1818		2271
1819	local $/;	2272	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2273	*CFG = YAML::Syck::Load <$fh>;
		2274
		2275	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2276
		2277	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2278	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2279
		2280	if (exists $CFG{mlockall}) {
		2281	eval {
		2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2283	and die "WARNING: m(un)lockall failed: $!\n";
		2284	};
		2285	warn $@ if $@;
		2286	}
		2287	}
		2288
		2289	sub init {
		2290	load_resources;
1821	}	2291	}
1822		2292
1823	sub main {	2293	sub main {
1824	# we must not ever block the main coroutine	2294	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2295	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2296	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2297	(async {
1828	Event::one_event;	2298	Event::one_event;
1829	})->();	2299	})->prio (Coro::PRIO_MAX);
1830	};	2300	};
1831		2301
1832	cfg_load;	2302	cfg_load;
1833	db_load;	2303	db_init;
1834	load_extensions;	2304	load_extensions;
		2305
		2306	$TICK_WATCHER->start;
1835	Event::loop;	2307	Event::loop;
1836	}	2308	}
1837		2309
1838	#############################################################################	2310	#############################################################################
1839	# initialisation	2311	# initialisation and cleanup
		2312
		2313	# install some emergency cleanup handlers
		2314	BEGIN {
		2315	for my $signal (qw(INT HUP TERM)) {
		2316	Event->signal (
		2317	reentrant => 0,
		2318	data => WF_AUTOCANCEL,
		2319	signal => $signal,
		2320	prio => 0,
		2321	cb => sub {
		2322	cf::cleanup "SIG$signal";
		2323	},
		2324	);
		2325	}
		2326	}
		2327
		2328	sub emergency_save() {
		2329	my $freeze_guard = cf::freeze_mainloop;
		2330
		2331	warn "enter emergency perl save\n";
		2332
		2333	cf::sync_job {
		2334	# use a peculiar iteration method to avoid tripping on perl
		2335	# refcount bugs in for. also avoids problems with players
		2336	# and maps saved/destroyed asynchronously.
		2337	warn "begin emergency player save\n";
		2338	for my $login (keys %cf::PLAYER) {
		2339	my $pl = $cf::PLAYER{$login} or next;
		2340	$pl->valid or next;
		2341	$pl->save;
		2342	}
		2343	warn "end emergency player save\n";
		2344
		2345	warn "begin emergency map save\n";
		2346	for my $path (keys %cf::MAP) {
		2347	my $map = $cf::MAP{$path} or next;
		2348	$map->valid or next;
		2349	$map->save;
		2350	}
		2351	warn "end emergency map save\n";
		2352
		2353	warn "begin emergency database checkpoint\n";
		2354	BDB::db_env_txn_checkpoint $DB_ENV;
		2355	warn "end emergency database checkpoint\n";
		2356	};
		2357
		2358	warn "leave emergency perl save\n";
		2359	}
		2360
		2361	sub post_cleanup {
		2362	my ($make_core) = @_;
		2363
		2364	warn Carp::longmess "post_cleanup backtrace"
		2365	if $make_core;
		2366	}
1840		2367
1841	sub reload() {	2368	sub reload() {
1842	# can/must only be called in main	2369	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2370	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2371	warn "can only reload from main coroutine";
1845	return;	2372	return;
1846	}	2373	}
1847		2374
1848	warn "reloading...";	2375	warn "reloading...";
1849		2376
1850	local $FREEZE = 1;	2377	warn "cancelling server ticker";
		2378	$TICK_WATCHER->cancel;
		2379
1851	cf::emergency_save;	2380	cf::emergency_save;
1852		2381
1853	eval {	2382	eval {
1854	# if anything goes wrong in here, we should simply crash as we already saved	2383	# if anything goes wrong in here, we should simply crash as we already saved
1855		2384
1856	# cancel all watchers	2385	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2386	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2387	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2388	}
1860		2389
		2390	warn "syncing database to disk";
		2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2392
		2393	warn "flushing outstanding aio requests";
		2394	for (;;) {
		2395	BDB::flush;
		2396	IO::AIO::flush;
		2397	Coro::cede;
		2398	last unless IO::AIO::nreqs || BDB::nreqs;
		2399	warn "iterate...";
		2400	}
		2401
1861	# cancel all extension coros	2402	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2403	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2404	%EXT_CORO = ();
1864		2405
1865	# unload all extensions	2406	warn "removing commands";
1866	for (@exts) {	2407	%COMMAND = ();
		2408
		2409	warn "removing ext commands";
		2410	%EXTCMD = ();
		2411
		2412	warn "unloading/nuking all extensions";
		2413	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2414	warn "... unloading $pkg";
1868	unload_extension $_;	2415
		2416	if (my $cb = $pkg->can ("unload")) {
		2417	eval {
		2418	$cb->($pkg);
		2419	1
		2420	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2421	}
1870		2422
		2423	warn "... nuking $pkg";
		2424	Symbol::delete_package $pkg;
		2425	}
		2426
1871	# unload all modules loaded from $LIBDIR	2427	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2428	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2430
1875	warn "removing <$k>";	2431	warn "... unloading $k";
1876	delete $INC{$k};	2432	delete $INC{$k};
1877		2433
1878	$k =~ s/\.pm$//;	2434	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2435	$k =~ s/\//::/g;
1880		2436
…		…
1883	}	2439	}
1884		2440
1885	Symbol::delete_package $k;	2441	Symbol::delete_package $k;
1886	}	2442	}
1887		2443
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2444	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2445	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2447
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2448	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2449	delete $INC{"cf.pm"};
1901		2450
1902	# don't, removes xs symbols, too,	2451	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2452	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2453	#Symbol::delete_package __PACKAGE__;
1905		2454
1906	# reload cf.pm	2455	warn "unload completed, starting to reload now";
		2456
1907	warn "reloading cf.pm";	2457	warn "reloading cf.pm";
1908	require cf;	2458	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2460
1911	# load config and database again	2461	warn "loading config and database again";
1912	cf::cfg_load;	2462	cf::cfg_load;
1913	cf::db_load;
1914		2463
1915	# load extensions
1916	warn "load extensions";	2464	warn "loading extensions";
1917	cf::load_extensions;	2465	cf::load_extensions;
1918		2466
1919	# reattach attachments to objects	2467	warn "reattaching attachments to objects/players";
1920	warn "reattach";
1921	_global_reattach;	2468	_global_reattach;
		2469	warn "reattaching attachments to maps";
		2470	reattach $_ for values %MAP;
		2471
		2472	warn "loading reloadable resources";
		2473	load_resources;
		2474
		2475	warn "restarting server ticker";
		2476
		2477	$TICK_WATCHER->start;
1922	};	2478	};
1923		2479
1924	if ($@) {	2480	if ($@) {
1925	warn $@;	2481	warn $@;
1926	warn "error while reloading, exiting.";	2482	warn "error while reloading, exiting.";
1927	exit 1;	2483	exit 1;
1928	}	2484	}
1929		2485
1930	warn "reloaded successfully";	2486	warn "reloaded";
1931	};	2487	};
1932		2488
1933	#############################################################################	2489	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2490
1978	register_command "reload" => sub {	2491	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2492	my ($who, $arg) = @_;
1980		2493
1981	if ($who->flag (FLAG_WIZ)) {	2494	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");	2495	$who->message ("reloading server.");
		2496
		2497	# doing reload synchronously and two reloads happen back-to-back,
		2498	# coro crashes during coro_state_free->destroy here.
		2499
		2500	$RELOAD_WATCHER ||= Event->timer (
		2501	reentrant => 0,
		2502	after => 0,
		2503	data => WF_AUTOCANCEL,
		2504	cb => sub {
1983	reload;	2505	reload;
1984	$who->message ("end of reload.");	2506	undef $RELOAD_WATCHER;
		2507	},
		2508	);
1985	}	2509	}
1986	};	2510	};
1987		2511
1988	unshift @INC, $LIBDIR;	2512	unshift @INC, $LIBDIR;
		2513
		2514	my $bug_warning = 0;
1989		2515
1990	$TICK_WATCHER = Event->timer (	2516	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2517	reentrant => 0,
		2518	parked => 1,
1992	prio => 0,	2519	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2520	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2521	data => WF_AUTOCANCEL,
1995	cb => sub {	2522	cb => sub {
1996	unless ($FREEZE) {	2523	if ($Coro::current != $Coro::main) {
		2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2525	unless ++$bug_warning > 10;
		2526	return;
		2527	}
		2528
		2529	$NOW = Event::time;
		2530
1997	cf::server_tick; # one server iteration	2531	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2532	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	2533	$NEXT_TICK += $TICK;
		2534
		2535	$WAIT_FOR_TICK->broadcast;
		2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2537
		2538	Event::sweep;
		2539	Coro::cede_notself;
		2540
		2541	# my $AFTER = Event::time;
		2542	# warn $AFTER - $NOW;#d#
2002		2543
2003	# if we are delayed by four ticks or more, skip them all	2544	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2546
2006	$TICK_WATCHER->at ($NEXT_TICK);	2547	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2548	$TICK_WATCHER->start;
2008	},	2549	},
2009	);	2550	);
2010		2551
		2552	{
		2553	BDB::max_poll_time $TICK * 0.1;
		2554	$BDB_POLL_WATCHER = Event->io (
		2555	reentrant => 0,
		2556	fd => BDB::poll_fileno,
		2557	poll => 'r',
		2558	prio => 0,
		2559	data => WF_AUTOCANCEL,
		2560	cb => \&BDB::poll_cb,
		2561	);
		2562	BDB::min_parallel 8;
		2563
		2564	BDB::set_sync_prepare {
		2565	my $status;
		2566	my $current = $Coro::current;
		2567	(
		2568	sub {
		2569	$status = $!;
		2570	$current->ready; undef $current;
		2571	},
		2572	sub {
		2573	Coro::schedule while defined $current;
		2574	$! = $status;
		2575	},
		2576	)
		2577	};
		2578
		2579	unless ($DB_ENV) {
		2580	$DB_ENV = BDB::db_env_create;
		2581
		2582	cf::sync_job {
		2583	eval {
		2584	BDB::db_env_open
		2585	$DB_ENV,
		2586	$BDB_ENV_DIR,
		2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2589	0666;
		2590
		2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2592
		2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2594	$DB_ENV->set_lk_detect;
		2595	};
		2596
		2597	cf::cleanup "db_env_open(db): $@" if $@;
		2598	};
		2599	}
		2600	}
		2601
		2602	{
		2603	IO::AIO::min_parallel 8;
		2604
		2605	undef $Coro::AIO::WATCHER;
2011	IO::AIO::max_poll_time $TICK * 0.2;	2606	IO::AIO::max_poll_time $TICK * 0.1;
2012		2607	$AIO_POLL_WATCHER = Event->io (
2013	Event->io (	2608	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2609	fd => IO::AIO::poll_fileno,
2015	poll => 'r',	2610	poll => 'r',
2016	prio => 5,	2611	prio => 6,
2017	data => WF_AUTOCANCEL,	2612	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,	2613	cb => \&IO::AIO::poll_cb,
2019	);	2614	);
		2615	}
2020		2616
2021	Event->timer (	2617	$WRITE_RUNTIME_WATCHER = Event->timer (
		2618	reentrant => 0,
2022	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
2023	after => 0,	2620	after => 1,
2024	interval => 10,	2621	interval => 10,
2025	cb => sub {	2622	prio => 6, # keep it lowest so it acts like a watchdog
2026	(Coro::unblock_sub {	2623	cb => Coro::unblock_sub {
2027	write_runtime	2624	write_runtime
2028	or warn "ERROR: unable to write runtime file: $!";	2625	or warn "ERROR: unable to write runtime file: $!";
2029	})->();
2030	},	2626	},
2031	);	2627	);
2032		2628
		2629	END { cf::emergency_save }
		2630
2033	1	2631	1
2034		2632

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