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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.207 by root, Sun Feb 11 22:42:09 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;
		22	use Digest::MD5;
20	use Fcntl;	23	use Fcntl;
21	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
22	use YAML::Syck ();	25	use YAML::Syck ();
23	use Time::HiRes;	26	use Time::HiRes;
24		27
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	28	use Event; $Event::Eval = 1; # no idea why this is required, but it is
26		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	33	$YAML::Syck::ImplicitUnicode = 1;
29		34
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		36
34	our %COMMAND = ();	37	our %COMMAND = ();
35	our %COMMAND_TIME = ();	38	our %COMMAND_TIME = ();
		39
		40	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	41	our %EXTCMD = ();
		42	our %EXT_CORO = (); # coroutines bound to extensions
		43	our %EXT_MAP = (); # pluggable maps
37		44
38	our @EVENT;	45	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	46	our $LIBDIR = datadir . "/ext";
40		47
41	our $TICK = MAX_TIME * 1e-6;	48	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	49	our $TICK_WATCHER;
		50	our $AIO_POLL_WATCHER;
		51	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	52	our $NEXT_TICK;
44	our $NOW;	53	our $NOW;
		54	our $USE_FSYNC = 1; # use fsync to write maps - default off
		55
		56	our $BDB_POLL_WATCHER;
		57	our $DB_ENV;
45		58
46	our %CFG;	59	our %CFG;
47		60
48	our $UPTIME; $UPTIME ||= time;	61	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	62	our $RUNTIME;
50		63
		64	our %PLAYER; # all users
51	our %MAP; # all maps	65	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	66	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	67	our $RANDOM_MAPS = cf::localdir . "/random";
		68	our $BDB_ENV_DIR = cf::localdir . "/db";
		69
		70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		72
		73	# used to convert map paths into valid unix filenames by replacing / by ∕
		74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		75
55	binmode STDOUT;	76	binmode STDOUT;
56	binmode STDERR;	77	binmode STDERR;
57		78
58	# read virtual server time, if available	79	# read virtual server time, if available
…		…
64		85
65	mkdir cf::localdir;	86	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	87	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	88	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	89	mkdir cf::localdir . "/" . cf::uniquedir;
		90	mkdir $RANDOM_MAPS;
		91	mkdir $BDB_ENV_DIR;
69		92
70	our %EXT_CORO;	93	our $EMERGENCY_POSITION;
		94
		95	sub cf::map::normalise;
71		96
72	#############################################################################	97	#############################################################################
73		98
74	=head2 GLOBAL VARIABLES	99	=head2 GLOBAL VARIABLES
75		100
…		…
99		124
100	=item %cf::CFG	125	=item %cf::CFG
101		126
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	127	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	128	from wherever your confdir points to.
		129
		130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		131
		132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		134	processing has been done. Call C<< ->wait >> on them to maximise the
		135	window of cpu time available, or simply to synchronise to the server tick.
104		136
105	=back	137	=back
106		138
107	=cut	139	=cut
108		140
…		…
112	utf8::encode $msg;	144	utf8::encode $msg;
113		145
114	$msg .= "\n"	146	$msg .= "\n"
115	unless $msg =~ /\n$/;	147	unless $msg =~ /\n$/;
116		148
117	LOG llevError, "cfperl: $msg";	149	LOG llevError, $msg;
118	};	150	};
119	}	151	}
120		152
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		172
141	$Event::DIED = sub {	173	$Event::DIED = sub {
142	warn "error in event callback: @_";	174	warn "error in event callback: @_";
143	};	175	};
144		176
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	177	=head2 UTILITY FUNCTIONS
150		178
151	=over 4	179	=over 4
152		180
		181	=item dumpval $ref
		182
153	=cut	183	=cut
		184
		185	sub dumpval {
		186	eval {
		187	local $SIG{__DIE__};
		188	my $d;
		189	if (1) {
		190	$d = new Data::Dumper([$_[0]], ["*var"]);
		191	$d->Terse(1);
		192	$d->Indent(2);
		193	$d->Quotekeys(0);
		194	$d->Useqq(1);
		195	#$d->Bless(...);
		196	$d->Seen($_[1]) if @_ > 1;
		197	$d = $d->Dump();
		198	}
		199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		200	$d
		201	} || "[unable to dump $_[0]: '$@']";
		202	}
154		203
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	204	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		205
157	=item $ref = cf::from_json $json	206	=item $ref = cf::from_json $json
158		207
…		…
174	sub to_json($) {	223	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	225	JSON::Syck::Dump $_[0]
177	}	226	}
178		227
179	# main coro must never ever "block" except in Event	228	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	229
181	# and waiting in Event while the server is otherwise frozen	230	Wait until the given lock is available. See cf::lock_acquire.
		231
		232	=item my $lock = cf::lock_acquire $string
		233
		234	Wait until the given lock is available and then acquires it and returns
		235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		236	for example when the coroutine gets canceled), the lock is automatically
		237	returned.
		238
		239	Lock names should begin with a unique identifier (for example, cf::map::find
		240	uses map_find and cf::map::load uses map_load).
		241
		242	=cut
		243
		244	our %LOCK;
		245
		246	sub lock_wait($) {
		247	my ($key) = @_;
		248
		249	# wait for lock, if any
		250	while ($LOCK{$key}) {
		251	push @{ $LOCK{$key} }, $Coro::current;
		252	Coro::schedule;
		253	}
		254	}
		255
		256	sub lock_acquire($) {
		257	my ($key) = @_;
		258
		259	# wait, to be sure we are not locked
		260	lock_wait $key;
		261
		262	$LOCK{$key} = [];
		263
		264	Coro::guard {
		265	# wake up all waiters, to be on the safe side
		266	$_->ready for @{ delete $LOCK{$key} };
		267	}
		268	}
		269
		270	sub freeze_mainloop {
		271	return unless $TICK_WATCHER->is_active;
		272
		273	my $guard = Coro::guard {
		274	$TICK_WATCHER->start;
		275	$WRITE_RUNTIME_WATCHER->start;
		276	};
		277	$WRITE_RUNTIME_WATCHER->stop;
		278	$TICK_WATCHER->stop;
		279	$guard
		280	}
		281
		282	=item cf::async { BLOCK }
		283
		284	Currently the same as Coro::async_pool, meaning you cannot use
		285	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		286	thing you are allowed to do is call C<prio> on it.
		287
		288	=cut
		289
		290	BEGIN { *async = \&Coro::async_pool }
		291
		292	=item cf::sync_job { BLOCK }
		293
		294	The design of crossfire+ requires that the main coro ($Coro::main) is
		295	always able to handle events or runnable, as crossfire+ is only partly
		296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		297
		298	If it must be done, put the blocking parts into C<sync_job>. This will run
		299	the given BLOCK in another coroutine while waiting for the result. The
		300	server will be frozen during this time, so the block should either finish
		301	fast or be very important.
		302
		303	=cut
		304
182	sub sync_job(&) {	305	sub sync_job(&) {
183	my ($job) = @_;	306	my ($job) = @_;
184		307
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	308	if ($Coro::current == $Coro::main) {
		309	# this is the main coro, too bad, we have to block
		310	# till the operation succeeds, freezing the server :/
		311
		312	# TODO: use suspend/resume instead
		313	# (but this is cancel-safe)
		314	my $freeze_guard = freeze_mainloop;
		315
		316	my $busy = 1;
		317	my @res;
		318
		319	(async {
		320	@res = eval { $job->() };
		321	warn $@ if $@;
		322	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	323	})->prio (Coro::PRIO_MAX);
		324
198	while ($busy) {	325	while ($busy) {
199	Coro::cede_notself;	326	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	327	}
		328
		329	wantarray ? @res : $res[0]
202	} else {	330	} else {
203	$coro->join;	331	# we are in another coroutine, how wonderful, everything just works
		332
		333	$job->()
204	}	334	}
205
206	wantarray ? @res : $res[0]
207	}	335	}
208		336
209	=item $coro = cf::coro { BLOCK }	337	=item $coro = cf::async_ext { BLOCK }
210		338
211	Creates and returns a new coro. This coro is automcatially being canceled	339	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	340	extension calling this is being unloaded.
213		341
214	=cut	342	=cut
215		343
216	sub coro(&) {	344	sub async_ext(&) {
217	my $cb = shift;	345	my $cb = shift;
218		346
219	my $coro; $coro = async {	347	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		348
226	$coro->on_destroy (sub {	349	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	350	delete $EXT_CORO{$coro+0};
228	});	351	});
229	$EXT_CORO{$coro+0} = $coro;	352	$EXT_CORO{$coro+0} = $coro;
230		353
231	$coro	354	$coro
		355	}
		356
		357	sub write_runtime {
		358	my $runtime = cf::localdir . "/runtime";
		359
		360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		361	or return;
		362
		363	my $value = $cf::RUNTIME + 90 + 10;
		364	# 10 is the runtime save interval, for a monotonic clock
		365	# 60 allows for the watchdog to kill the server.
		366
		367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		368	and return;
		369
		370	# always fsync - this file is important
		371	aio_fsync $fh
		372	and return;
		373
		374	close $fh
		375	or return;
		376
		377	aio_rename "$runtime~", $runtime
		378	and return;
		379
		380	1
232	}	381	}
233		382
234	=back	383	=back
235		384
236	=cut	385	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	516	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	517	our @CB_MAP = ();
369		518
370	my %attachment;	519	my %attachment;
371		520
		521	sub cf::attachable::thawer_merge {
		522	# simply override everything except _meta
		523	local $_[0]{_meta};
		524	%{$_[0]} = %{$_[1]};
		525	}
		526
372	sub _attach_cb($$$$) {	527	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	528	my ($registry, $event, $prio, $cb) = @_;
374		529
375	use sort 'stable';	530	use sort 'stable';
376		531
…		…
547	# object support	702	# object support
548		703
549	sub reattach {	704	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	705	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	706	my ($obj) = @_;
		707
		708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		709
553	my $registry = $obj->registry;	710	my $registry = $obj->registry;
554		711
555	@$registry = ();	712	@$registry = ();
556		713
…		…
603	$filename, length $$rdata, scalar @$objs;	760	$filename, length $$rdata, scalar @$objs;
604		761
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	763	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	765	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	766	close $fh;
610		767
611	if (@$objs) {	768	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	770	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	771	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	772	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	773	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	774	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	775	aio_rename "$filename.pst~", "$filename.pst";
619	}	776	}
620	} else {	777	} else {
621	aio_unlink "$filename.pst";	778	aio_unlink "$filename.pst";
…		…
627	}	784	}
628	} else {	785	} else {
629	aio_unlink $filename;	786	aio_unlink $filename;
630	aio_unlink "$filename.pst";	787	aio_unlink "$filename.pst";
631	}	788	}
		789
		790	#d##TODO# nuke non .map-files if exist
		791	if ($filename =~ s/\.map$//) {
		792	aio_unlink $filename;
		793	aio_unlink "$filename.pst";
		794	}
632	}	795	}
633	}	796	}
634		797
635	sub object_freezer_as_string {	798	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
642		805
643	sub object_thawer_load {	806	sub object_thawer_load {
644	my ($filename) = @_;	807	my ($filename) = @_;
645		808
646	my ($data, $av);	809	my ($data, $av);
		810
		811	#d#TODO remove .map if file does not exist
		812	aio_stat $filename and $filename =~ s/\.map$//;
647		813
648	(aio_load $filename, $data) >= 0	814	(aio_load $filename, $data) >= 0
649	or return;	815	or return;
650		816
651	unless (aio_stat "$filename.pst") {	817	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	818	(aio_load "$filename.pst", $av) >= 0
653	or return;	819	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	820	$av = eval { (Storable::thaw $av)->{objs} };
655	}	821	}
656		822
		823	warn sprintf "loading %s (%d)\n",
		824	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	825	return ($data, $av);
658	}	826	}
659		827
660	#############################################################################	828	#############################################################################
661	# command handling &c	829	# command handling &c
…		…
686	=cut	854	=cut
687		855
688	sub register_extcmd {	856	sub register_extcmd {
689	my ($name, $cb) = @_;	857	my ($name, $cb) = @_;
690		858
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	859	$EXTCMD{$name} = $cb;
695	}	860	}
696		861
697	cf::player->attach (	862	cf::player->attach (
698	on_command => sub {	863	on_command => sub {
699	my ($pl, $name, $params) = @_;	864	my ($pl, $name, $params) = @_;
…		…
712		877
713	my $msg = eval { from_json $buf };	878	my $msg = eval { from_json $buf };
714		879
715	if (ref $msg) {	880	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	882	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	883	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	884	}
720	}	885	}
721	} else {	886	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		889
725	cf::override;	890	cf::override;
726	},	891	},
727	);	892	);
728		893
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	894	sub load_extension {
736	my ($path) = @_;	895	my ($path) = @_;
737		896
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	898	my $base = $1;
740	my $pkg = $1;	899	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	900	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	901	$pkg = "ext::$pkg";
743		902
744	warn "loading '$path' into '$pkg'\n";	903	warn "... loading '$path' into '$pkg'\n";
745		904
746	open my $fh, "<:utf8", $path	905	open my $fh, "<:utf8", $path
747	or die "$path: $!";	906	or die "$path: $!";
748		907
749	my $source =	908	my $source =
750	"package $pkg; use strict; use utf8;\n"	909	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	910	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	911	. (do { local $/; <$fh> })
753	. "\n};\n1";	912	. "\n};\n1";
754		913
755	eval $source	914	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	915	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	916	: "extension disabled.\n";
758		917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	918	warn $@;
760	$ext_pkg{$base} = $pkg;	919	warn "mandatory extension failed to load, exiting.\n";
761		920	exit 1;
762	# no strict 'refs';	921	}
763	# @{"$pkg\::ISA"} = ext::;	922	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	923	}
778		924
779	# remove commands	925	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	926	}
804		927
805	sub load_extensions {	928	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	929	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	930	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	934	} or warn "$ext not loaded: $@";
812	}	935	}
813	}	936	}
814		937
815	#############################################################################	938	#############################################################################
816	# load/save/clean perl data associated with a map
817		939
818	*cf::mapsupport::on_clean = sub {	940	=head2 CORE EXTENSIONS
		941
		942	Functions and methods that extend core crossfire objects.
		943
		944	=cut
		945
		946	package cf::player;
		947
		948	use Coro::AIO;
		949
		950	=head3 cf::player
		951
		952	=over 4
		953
		954	=item cf::player::find $login
		955
		956	Returns the given player object, loading it if necessary (might block).
		957
		958	=cut
		959
		960	sub playerdir($) {
		961	cf::localdir
		962	. "/"
		963	. cf::playerdir
		964	. "/"
		965	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		966	}
		967
		968	sub path($) {
		969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		970
		971	(playerdir $login) . "/$login.pl"
		972	}
		973
		974	sub find_active($) {
		975	$cf::PLAYER{$_[0]}
		976	and $cf::PLAYER{$_[0]}->active
		977	and $cf::PLAYER{$_[0]}
		978	}
		979
		980	sub exists($) {
		981	my ($login) = @_;
		982
		983	$cf::PLAYER{$login}
		984	or cf::sync_job { !aio_stat path $login }
		985	}
		986
		987	sub find($) {
		988	return $cf::PLAYER{$_[0]} || do {
		989	my $login = $_[0];
		990
		991	my $guard = cf::lock_acquire "user_find:$login";
		992
		993	$cf::PLAYER{$_[0]} || do {
		994	my $pl = load_pl path $login
		995	or return;
		996	$cf::PLAYER{$login} = $pl
		997	}
		998	}
		999	}
		1000
		1001	sub save($) {
		1002	my ($pl) = @_;
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	my $path = path $pl;
		1007	my $guard = cf::lock_acquire "user_save:$path";
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	aio_mkdir playerdir $pl, 0770;
		1012	$pl->{last_save} = $cf::RUNTIME;
		1013
		1014	$pl->save_pl ($path);
		1015	Coro::cede;
		1016	}
		1017
		1018	sub new($) {
		1019	my ($login) = @_;
		1020
		1021	my $self = create;
		1022
		1023	$self->ob->name ($login);
		1024	$self->{deny_save} = 1;
		1025
		1026	$cf::PLAYER{$login} = $self;
		1027
		1028	$self
		1029	}
		1030
		1031	=item $pl->quit_character
		1032
		1033	Nukes the player without looking back. If logged in, the connection will
		1034	be destroyed. May block for a long time.
		1035
		1036	=cut
		1037
		1038	sub quit_character {
		1039	my ($pl) = @_;
		1040
		1041	$pl->{deny_save} = 1;
		1042	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1043
		1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1045	$pl->deactivate;
		1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1047	$pl->ns->destroy if $pl->ns;
		1048
		1049	my $path = playerdir $pl;
		1050	my $temp = "$path~$cf::RUNTIME~deleting~";
		1051	aio_rename $path, $temp;
		1052	delete $cf::PLAYER{$pl->ob->name};
		1053	$pl->destroy;
		1054	IO::AIO::aio_rmtree $temp;
		1055	}
		1056
		1057	=item cf::player::list_logins
		1058
		1059	Returns am arrayref of all valid playernames in the system, can take a
		1060	while and may block, so not sync_job-capable, ever.
		1061
		1062	=cut
		1063
		1064	sub list_logins {
		1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1066	or return [];
		1067
		1068	my @logins;
		1069
		1070	for my $login (@$dirs) {
		1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1072	aio_read $fh, 0, 512, my $buf, 0 or next;
		1073	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1074
		1075	utf8::decode $login;
		1076	push @logins, $login;
		1077	}
		1078
		1079	\@logins
		1080	}
		1081
		1082	=item $player->maps
		1083
		1084	Returns an arrayref of map paths that are private for this
		1085	player. May block.
		1086
		1087	=cut
		1088
		1089	sub maps($) {
		1090	my ($pl) = @_;
		1091
		1092	$pl = ref $pl ? $pl->ob->name : $pl;
		1093
		1094	my $files = aio_readdir playerdir $pl
		1095	or return;
		1096
		1097	my @paths;
		1098
		1099	for (@$files) {
		1100	utf8::decode $_;
		1101	next if /\.(?:pl|pst)$/;
		1102	next unless /^$PATH_SEP/o;
		1103
		1104	push @paths, cf::map::normalise "~$pl/$_";
		1105	}
		1106
		1107	\@paths
		1108	}
		1109
		1110	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1111
		1112	Sends an ext reply to the player.
		1113
		1114	=cut
		1115
		1116	sub ext_reply($$$%) {
		1117	my ($self, $id, %msg) = @_;
		1118
		1119	$msg{msgid} = $id;
		1120
		1121	$self->send ("ext " . cf::to_json \%msg);
		1122	}
		1123
		1124	package cf;
		1125
		1126	=back
		1127
		1128
		1129	=head3 cf::map
		1130
		1131	=over 4
		1132
		1133	=cut
		1134
		1135	package cf::map;
		1136
		1137	use Fcntl;
		1138	use Coro::AIO;
		1139
		1140	use overload
		1141	'""' => \&as_string,
		1142	fallback => 1;
		1143
		1144	our $MAX_RESET = 3600;
		1145	our $DEFAULT_RESET = 3000;
		1146
		1147	sub generate_random_map {
		1148	my ($self, $rmp) = @_;
		1149	# mit "rum" bekleckern, nicht
		1150	$self->_create_random_map (
		1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1154	$rmp->{exit_on_final_map},
		1155	$rmp->{xsize}, $rmp->{ysize},
		1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1161	(cf::region::find $rmp->{region}), $rmp->{custom}
		1162	)
		1163	}
		1164
		1165	=item cf::map->register ($regex, $prio)
		1166
		1167	Register a handler for the map path matching the given regex at the
		1168	givne priority (higher is better, built-in handlers have priority 0, the
		1169	default).
		1170
		1171	=cut
		1172
		1173	sub register {
		1174	my (undef, $regex, $prio) = @_;
		1175	my $pkg = caller;
		1176
		1177	no strict;
		1178	push @{"$pkg\::ISA"}, __PACKAGE__;
		1179
		1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1181	}
		1182
		1183	# also paths starting with '/'
		1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1185
		1186	sub thawer_merge {
		1187	my ($self, $merge) = @_;
		1188
		1189	# we have to keep some variables in memory intact
		1190	local $self->{path};
		1191	local $self->{load_path};
		1192	local $self->{deny_save};
		1193	local $self->{deny_reset};
		1194
		1195	$self->SUPER::thawer_merge ($merge);
		1196	}
		1197
		1198	sub normalise {
		1199	my ($path, $base) = @_;
		1200
		1201	$path = "$path"; # make sure its a string
		1202
		1203	$path =~ s/\.map$//;
		1204
		1205	# map plan:
		1206	#
		1207	# /! non-realised random map exit (special hack!)
		1208	# {... are special paths that are not being touched
		1209	# ?xxx/... are special absolute paths
		1210	# ?random/... random maps
		1211	# /... normal maps
		1212	# ~user/... per-player map of a specific user
		1213
		1214	$path =~ s/$PATH_SEP/\//go;
		1215
		1216	# treat it as relative path if it starts with
		1217	# something that looks reasonable
		1218	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1219	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1220
		1221	$base =~ s{[^/]+/?$}{};
		1222	$path = "$base/$path";
		1223	}
		1224
		1225	for ($path) {
		1226	redo if s{//}{/};
		1227	redo if s{/\.?/}{/};
		1228	redo if s{/[^/]+/\.\./}{/};
		1229	}
		1230
		1231	$path
		1232	}
		1233
		1234	sub new_from_path {
		1235	my (undef, $path, $base) = @_;
		1236
		1237	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1238
		1239	$path = normalise $path, $base;
		1240
		1241	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1242	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1243	my $self = bless cf::map::new, $pkg;
		1244	$self->{path} = $path; $self->path ($path);
		1245	$self->init; # pass $1 etc.
		1246	return $self;
		1247	}
		1248	}
		1249
		1250	Carp::carp "unable to resolve path '$path' (base '$base').";
		1251	()
		1252	}
		1253
		1254	sub init {
		1255	my ($self) = @_;
		1256
		1257	$self
		1258	}
		1259
		1260	sub as_string {
		1261	my ($self) = @_;
		1262
		1263	"$self->{path}"
		1264	}
		1265
		1266	# the displayed name, this is a one way mapping
		1267	sub visible_name {
		1268	&as_string
		1269	}
		1270
		1271	# the original (read-only) location
		1272	sub load_path {
		1273	my ($self) = @_;
		1274
		1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1276	}
		1277
		1278	# the temporary/swap location
		1279	sub save_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1284	}
		1285
		1286	# the unique path, undef == no special unique path
		1287	sub uniq_path {
		1288	my ($self) = @_;
		1289
		1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1292	}
		1293
		1294	# and all this just because we cannot iterate over
		1295	# all maps in C++...
		1296	sub change_all_map_light {
		1297	my ($change) = @_;
		1298
		1299	$_->change_map_light ($change)
		1300	for grep $_->outdoor, values %cf::MAP;
		1301	}
		1302
		1303	sub unlink_save {
		1304	my ($self) = @_;
		1305
		1306	utf8::encode (my $save = $self->save_path);
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1309
		1310	#d#TODO remove .map and also nuke
		1311	$save =~ s/\.map// or return;#d#
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1314	}
		1315
		1316	sub load_header_from($) {
		1317	my ($self, $path) = @_;
		1318
		1319	utf8::encode $path;
		1320	#aio_open $path, O_RDONLY, 0
		1321	# or return;
		1322
		1323	$self->_load_header ($path)
		1324	or return;
		1325
		1326	$self->{load_path} = $path;
		1327
		1328	1
		1329	}
		1330
		1331	sub load_header_orig {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->load_path)
		1335	}
		1336
		1337	sub load_header_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->load_header_from ($self->save_path)
		1341	}
		1342
		1343	sub prepare_temp {
		1344	my ($self) = @_;
		1345
		1346	$self->last_access ((delete $self->{last_access})
		1347	|| $cf::RUNTIME); #d#
		1348	# safety
		1349	$self->{instantiate_time} = $cf::RUNTIME
		1350	if $self->{instantiate_time} > $cf::RUNTIME;
		1351	}
		1352
		1353	sub prepare_orig {
		1354	my ($self) = @_;
		1355
		1356	$self->{load_original} = 1;
		1357	$self->{instantiate_time} = $cf::RUNTIME;
		1358	$self->last_access ($cf::RUNTIME);
		1359	$self->instantiate;
		1360	}
		1361
		1362	sub load_header {
		1363	my ($self) = @_;
		1364
		1365	if ($self->load_header_temp) {
		1366	$self->prepare_temp;
		1367	} else {
		1368	$self->load_header_orig
		1369	or return;
		1370	$self->prepare_orig;
		1371	}
		1372
		1373	1
		1374	}
		1375
		1376	sub find;
		1377	sub find {
		1378	my ($path, $origin) = @_;
		1379
		1380	$path = normalise $path, $origin && $origin->path;
		1381
		1382	cf::lock_wait "map_find:$path";
		1383
		1384	$cf::MAP{$path} || do {
		1385	my $guard = cf::lock_acquire "map_find:$path";
		1386	my $map = new_from_path cf::map $path
		1387	or return;
		1388
		1389	$map->{last_save} = $cf::RUNTIME;
		1390
		1391	$map->load_header
		1392	or return;
		1393
		1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1395	# doing this can freeze the server in a sync job, obviously
		1396	#$cf::WAIT_FOR_TICK->wait;
		1397	$map->reset;
		1398	undef $guard;
		1399	return find $path;
		1400	}
		1401
		1402	$cf::MAP{$path} = $map
		1403	}
		1404	}
		1405
		1406	sub pre_load { }
		1407	sub post_load { }
		1408
		1409	sub load {
		1410	my ($self) = @_;
		1411
		1412	local $self->{deny_reset} = 1; # loading can take a long time
		1413
		1414	my $path = $self->{path};
		1415	my $guard = cf::lock_acquire "map_load:$path";
		1416
		1417	return if $self->in_memory != cf::MAP_SWAPPED;
		1418
		1419	$self->in_memory (cf::MAP_LOADING);
		1420
		1421	$self->alloc;
		1422
		1423	$self->pre_load;
		1424
		1425	$self->_load_objects ($self->{load_path}, 1)
		1426	or return;
		1427
		1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1429	if delete $self->{load_original};
		1430
		1431	if (my $uniq = $self->uniq_path) {
		1432	utf8::encode $uniq;
		1433	if (aio_open $uniq, O_RDONLY, 0) {
		1434	$self->clear_unique_items;
		1435	$self->_load_objects ($uniq, 0);
		1436	}
		1437	}
		1438
		1439	Coro::cede;
		1440
		1441	# now do the right thing for maps
		1442	$self->link_multipart_objects;
		1443
		1444	unless ($self->{deny_activate}) {
		1445	$self->decay_objects;
		1446	$self->fix_auto_apply;
		1447	$self->update_buttons;
		1448	Coro::cede;
		1449	$self->set_darkness_map;
		1450	$self->difficulty ($self->estimate_difficulty)
		1451	unless $self->difficulty;
		1452	Coro::cede;
		1453	$self->activate;
		1454	}
		1455
		1456	$self->post_load;
		1457
		1458	$self->in_memory (cf::MAP_IN_MEMORY);
		1459	}
		1460
		1461	sub customise_for {
		1462	my ($self, $ob) = @_;
		1463
		1464	return find "~" . $ob->name . "/" . $self->{path}
		1465	if $self->per_player;
		1466
		1467	$self
		1468	}
		1469
		1470	# find and load all maps in the 3x3 area around a map
		1471	sub load_diag {
819	my ($map) = @_;	1472	my ($map) = @_;
820		1473
821	my $path = $map->tmpname;	1474	my @diag; # diagonal neighbours
822	defined $path or return;
823		1475
824	unlink "$path.pst";	1476	for (0 .. 3) {
825	};	1477	my $neigh = $map->tile_path ($_)
		1478	or next;
		1479	$neigh = find $neigh, $map
		1480	or next;
		1481	$neigh->load;
826		1482
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1485	}
828		1486
829	#############################################################################	1487	for (@diag) {
830	# load/save perl data associated with player->ob objects	1488	my $neigh = find @$_
831		1489	or next;
832	sub all_objects(@) {	1490	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1491	}
834	}	1492	}
835		1493
836	# TODO: compatibility cruft, remove when no longer needed	1494	sub find_sync {
837	cf::player->attach (	1495	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1496
841	for my $o (all_objects $pl->ob) {	1497	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1498	}
843	$o->set_ob_key_value ("_perl_data");
844		1499
845	%$o = %{ Storable::thaw pack "H*", $value };	1500	sub do_load_sync {
		1501	my ($map) = @_;
		1502
		1503	cf::sync_job { $map->load };
		1504	}
		1505
		1506	our %MAP_PREFETCH;
		1507	our $MAP_PREFETCHER = undef;
		1508
		1509	sub find_async {
		1510	my ($path, $origin) = @_;
		1511
		1512	$path = normalise $path, $origin && $origin->{path};
		1513
		1514	if (my $map = $cf::MAP{$path}) {
		1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1516	}
		1517
		1518	undef $MAP_PREFETCH{$path};
		1519	$MAP_PREFETCHER ||= cf::async {
		1520	while (%MAP_PREFETCH) {
		1521	for my $path (keys %MAP_PREFETCH) {
		1522	my $map = find $path
		1523	or next;
		1524	$map->load;
		1525
		1526	delete $MAP_PREFETCH{$path};
846	}	1527	}
847	}	1528	}
		1529	undef $MAP_PREFETCHER;
		1530	};
		1531	$MAP_PREFETCHER->prio (6);
		1532
		1533	()
		1534	}
		1535
		1536	sub save {
		1537	my ($self) = @_;
		1538
		1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1540
		1541	$self->{last_save} = $cf::RUNTIME;
		1542
		1543	return unless $self->dirty;
		1544
		1545	my $save = $self->save_path; utf8::encode $save;
		1546	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1547
		1548	$self->{load_path} = $save;
		1549
		1550	return if $self->{deny_save};
		1551
		1552	local $self->{last_access} = $self->last_access;#d#
		1553
		1554	cf::async {
		1555	$_->contr->save for $self->players;
		1556	};
		1557
		1558	if ($uniq) {
		1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1561	} else {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1563	}
849	);	1564	}
850		1565
851	#############################################################################	1566	sub swap_out {
		1567	my ($self) = @_;
852		1568
853	=head2 CORE EXTENSIONS	1569	# save first because save cedes
		1570	$self->save;
854		1571
855	Functions and methods that extend core crossfire objects.	1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1573
857	=head3 cf::player	1574	return if $self->players;
		1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1576	return if $self->{deny_save};
		1577
		1578	$self->clear;
		1579	$self->in_memory (cf::MAP_SWAPPED);
		1580	}
		1581
		1582	sub reset_at {
		1583	my ($self) = @_;
		1584
		1585	# TODO: safety, remove and allow resettable per-player maps
		1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1587	return 1e99 if $self->{deny_reset};
		1588
		1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1591
		1592	$time + $to
		1593	}
		1594
		1595	sub should_reset {
		1596	my ($self) = @_;
		1597
		1598	$self->reset_at <= $cf::RUNTIME
		1599	}
		1600
		1601	sub reset {
		1602	my ($self) = @_;
		1603
		1604	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1605
		1606	return if $self->players;
		1607	return if $self->isa ("ext::map_per_player");#d#
		1608
		1609	warn "resetting map ", $self->path;#d#
		1610
		1611	delete $cf::MAP{$self->path};
		1612
		1613	$self->in_memory (cf::MAP_SWAPPED);
		1614	$self->clear;
		1615
		1616	$_->clear_links_to ($self) for values %cf::MAP;
		1617
		1618	$self->unlink_save;
		1619	$self->destroy;
		1620	}
		1621
		1622	my $nuke_counter = "aaaa";
		1623
		1624	sub nuke {
		1625	my ($self) = @_;
		1626
		1627	delete $cf::MAP{$self->path};
		1628
		1629	$self->unlink_save;
		1630
		1631	bless $self, "cf::map";
		1632	delete $self->{deny_reset};
		1633	$self->{deny_save} = 1;
		1634	$self->reset_timeout (1);
		1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1636
		1637	$cf::MAP{$self->path} = $self;
		1638
		1639	$self->reset; # polite request, might not happen
		1640	}
		1641
		1642	=item cf::map::unique_maps
		1643
		1644	Returns an arrayref of paths of all shared maps that have
		1645	instantiated unique items. May block.
		1646
		1647	=cut
		1648
		1649	sub unique_maps() {
		1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1651	or return;
		1652
		1653	my @paths;
		1654
		1655	for (@$files) {
		1656	utf8::decode $_;
		1657	next if /\.pst$/;
		1658	next unless /^$PATH_SEP/o;
		1659
		1660	push @paths, cf::map::normalise $_;
		1661	}
		1662
		1663	\@paths
		1664	}
		1665
		1666	package cf;
		1667
		1668	=back
		1669
		1670	=head3 cf::object
		1671
		1672	=cut
		1673
		1674	package cf::object;
858		1675
859	=over 4	1676	=over 4
860		1677
861	=item cf::player::exists $login	1678	=item $ob->inv_recursive
862		1679
863	Returns true when the given account exists.	1680	Returns the inventory of the object _and_ their inventories, recursively.
864		1681
865	=cut	1682	=cut
866		1683
867	sub cf::player::exists($) {	1684	sub inv_recursive_;
868	cf::player::find $_[0]	1685	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1686	map { $_, inv_recursive_ $_->inv } @_
870	}	1687	}
871		1688
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1689	sub inv_recursive {
873		1690	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1691	}
		1692
		1693	package cf;
885		1694
886	=back	1695	=back
887		1696
888	=head3 cf::object::player	1697	=head3 cf::object::player
889		1698
…		…
927	(ref $cf::CFG{"may_$access"}	1736	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1737	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1738	: $cf::CFG{"may_$access"})
930	}	1739	}
931		1740
		1741	=item $player_object->enter_link
		1742
		1743	Freezes the player and moves him/her to a special map (C<{link}>).
		1744
		1745	The player should be reasonably safe there for short amounts of time. You
		1746	I<MUST> call C<leave_link> as soon as possible, though.
		1747
		1748	Will never block.
		1749
		1750	=item $player_object->leave_link ($map, $x, $y)
		1751
		1752	Moves the player out of the special C<{link}> map onto the specified
		1753	map. If the map is not valid (or omitted), the player will be moved back
		1754	to the location he/she was before the call to C<enter_link>, or, if that
		1755	fails, to the emergency map position.
		1756
		1757	Might block.
		1758
		1759	=cut
		1760
		1761	sub link_map {
		1762	unless ($LINK_MAP) {
		1763	$LINK_MAP = cf::map::find "{link}"
		1764	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1765	$LINK_MAP->load;
		1766	}
		1767
		1768	$LINK_MAP
		1769	}
		1770
		1771	sub cf::object::player::enter_link {
		1772	my ($self) = @_;
		1773
		1774	$self->deactivate_recursive;
		1775
		1776	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1777
		1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1779	if $self->map;
		1780
		1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1782	}
		1783
		1784	sub cf::object::player::leave_link {
		1785	my ($self, $map, $x, $y) = @_;
		1786
		1787	my $link_pos = delete $self->{_link_pos};
		1788
		1789	unless ($map) {
		1790	# restore original map position
		1791	($map, $x, $y) = @{ $link_pos || [] };
		1792	$map = cf::map::find $map;
		1793
		1794	unless ($map) {
		1795	($map, $x, $y) = @$EMERGENCY_POSITION;
		1796	$map = cf::map::find $map
		1797	or die "FATAL: cannot load emergency map\n";
		1798	}
		1799	}
		1800
		1801	($x, $y) = (-1, -1)
		1802	unless (defined $x) && (defined $y);
		1803
		1804	# use -1 or undef as default coordinates, not 0, 0
		1805	($x, $y) = ($map->enter_x, $map->enter_y)
		1806	if $x <=0 && $y <= 0;
		1807
		1808	$map->load;
		1809	$map->load_diag;
		1810
		1811	return unless $self->contr->active;
		1812	$self->activate_recursive;
		1813	$self->enter_map ($map, $x, $y);
		1814	}
		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($pl) = @_;
		1819
		1820	# abort map switching before logout
		1821	if ($pl->ob->{_link_pos}) {
		1822	cf::sync_job {
		1823	$pl->ob->leave_link
		1824	};
		1825	}
		1826	},
		1827	on_login => sub {
		1828	my ($pl) = @_;
		1829
		1830	# try to abort aborted map switching on player login :)
		1831	# should happen only on crashes
		1832	if ($pl->ob->{_link_pos}) {
		1833	$pl->ob->enter_link;
		1834	(async {
		1835	# we need this sleep as the login has a concurrent enter_exit running
		1836	# and this sleep increases chances of the player not ending up in scorn
		1837	$pl->ob->reply (undef,
		1838	"There was an internal problem at your last logout, "
		1839	. "the server will try to bring you to your intended destination in a second.",
		1840	cf::NDI_RED);
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
		1848	=item $player_object->goto ($path, $x, $y)
		1849
		1850	=cut
		1851
		1852	sub cf::object::player::goto {
		1853	my ($self, $path, $x, $y) = @_;
		1854
		1855	$self->enter_link;
		1856
		1857	(async {
		1858	my $map = eval {
		1859	my $map = cf::map::find $path;
		1860	$map = $map->customise_for ($self) if $map;
		1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1864
		1865	$self->leave_link ($map, $x, $y);
		1866	})->prio (1);
		1867	}
		1868
		1869	=item $player_object->enter_exit ($exit_object)
		1870
		1871	=cut
		1872
		1873	sub parse_random_map_params {
		1874	my ($spec) = @_;
		1875
		1876	my $rmp = { # defaults
		1877	xsize => (cf::rndm 15, 40),
		1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
		1881	};
		1882
		1883	for (split /\n/, $spec) {
		1884	my ($k, $v) = split /\s+/, $_, 2;
		1885
		1886	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1887	}
		1888
		1889	$rmp
		1890	}
		1891
		1892	sub prepare_random_map {
		1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1896
		1897	# all this does is basically replace the /! path by
		1898	# a new random map path (?random/...) with a seed
		1899	# that depends on the exit object
		1900
		1901	my $rmp = parse_random_map_params $exit->msg;
		1902
		1903	if ($exit->map) {
		1904	$rmp->{region} = $exit->region->name;
		1905	$rmp->{origin_map} = $exit->map->path;
		1906	$rmp->{origin_x} = $exit->x;
		1907	$rmp->{origin_y} = $exit->y;
		1908	}
		1909
		1910	$rmp->{random_seed} ||= $exit->random_seed;
		1911
		1912	my $data = cf::to_json $rmp;
		1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1915
		1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
		1920
		1921	$exit->slaying ("?random/$md5");
		1922	$exit->msg (undef);
		1923	}
		1924	}
		1925
		1926	sub cf::object::player::enter_exit {
		1927	my ($self, $exit) = @_;
		1928
		1929	return unless $self->type == cf::PLAYER;
		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
		1939
		1940	$self->enter_link;
		1941
		1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
		1944	unless (eval {
		1945	$self->goto ($slaying, $hp, $sp);
		1946
		1947	1;
		1948	}) {
		1949	$self->message ("Something went wrong deep within the crossfire server. "
		1950	. "I'll try to bring you back to the map you were before. "
		1951	. "Please report this to the dungeon master!",
		1952	cf::NDI_UNIQUE | cf::NDI_RED);
		1953
		1954	warn "ERROR in enter_exit: $@";
		1955	$self->leave_link;
		1956	}
		1957	})->prio (1);
		1958	}
		1959
932	=head3 cf::client	1960	=head3 cf::client
933		1961
934	=over 4	1962	=over 4
935		1963
936	=item $client->send_drawinfo ($text, $flags)	1964	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	2007	on_reply => sub {
980	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
981		2009
982	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
983	# get handled first	2011	# get handled first
984	my $queue = delete $ns->{query_queue};	2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2014
986	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2017
988	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
989		2019
990	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2021	if (@$queue) {
…		…
995	}	2025	}
996	}	2026	}
997	},	2027	},
998	);	2028	);
999		2029
1000	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1001		2031
1002	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2034	or loss of connection).
1005		2035
1006	=cut	2036	=cut
1007		2037
1008	sub cf::client::coro {	2038	sub cf::client::async {
1009	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1010		2040
1011	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2042
1018	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1020	});	2045	});
1021		2046
…		…
1193		2218
1194	{	2219	{
1195	my $path = cf::localdir . "/database.pst";	2220	my $path = cf::localdir . "/database.pst";
1196		2221
1197	sub db_load() {	2222	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };	2223	$DB = stat $path ? Storable::retrieve $path : { };
1200	}	2224	}
1201		2225
1202	my $pid;	2226	my $pid;
1203		2227
1204	sub db_save() {	2228	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;	2229	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {	2230	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;	2231	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";	2232	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;	2233	rename "$path~", $path;
…		…
1217	sub db_sync() {	2240	sub db_sync() {
1218	db_save if $dirty;	2241	db_save if $dirty;
1219	undef $dirty;	2242	undef $dirty;
1220	}	2243	}
1221		2244
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2245	my $idle = Event->idle (
1223	db_sync;	2246	reentrant => 0,
		2247	min => 10,
		2248	max => 20,
		2249	repeat => 0,
		2250	data => WF_AUTOCANCEL,
		2251	cb => \&db_sync,
1224	});	2252	);
1225		2253
1226	sub db_dirty() {	2254	sub db_dirty() {
1227	$dirty = 1;	2255	$dirty = 1;
1228	$idle->start;	2256	$idle->start;
1229	}	2257	}
…		…
1250	},	2278	},
1251	);	2279	);
1252	}	2280	}
1253		2281
1254	#############################################################################	2282	#############################################################################
1255	# the server's main()	2283	# the server's init and main functions
		2284
		2285	sub load_resources {
		2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2287	or die "unable to load regions file\n";#d#
		2288	}
1256		2289
1257	sub cfg_load {	2290	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2291	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2292	or return;
1260		2293
1261	local $/;	2294	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2295	*CFG = YAML::Syck::Load <$fh>;
		2296
		2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2298
		2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2301
		2302	if (exists $CFG{mlockall}) {
		2303	eval {
		2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2305	and die "WARNING: m(un)lockall failed: $!\n";
		2306	};
		2307	warn $@ if $@;
		2308	}
		2309	}
		2310
		2311	sub init {
		2312	load_resources;
1263	}	2313	}
1264		2314
1265	sub main {	2315	sub main {
		2316	# we must not ever block the main coroutine
		2317	local $Coro::idle = sub {
		2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2319	(async {
		2320	Event::one_event;
		2321	})->prio (Coro::PRIO_MAX);
		2322	};
		2323
1266	cfg_load;	2324	cfg_load;
1267	db_load;	2325	db_load;
1268	load_extensions;	2326	load_extensions;
		2327
		2328	$TICK_WATCHER->start;
1269	Event::loop;	2329	Event::loop;
1270	}	2330	}
1271		2331
1272	#############################################################################	2332	#############################################################################
1273	# initialisation	2333	# initialisation and cleanup
1274		2334
		2335	# install some emergency cleanup handlers
		2336	BEGIN {
		2337	for my $signal (qw(INT HUP TERM)) {
		2338	Event->signal (
		2339	reentrant => 0,
		2340	data => WF_AUTOCANCEL,
		2341	signal => $signal,
		2342	prio => 0,
		2343	cb => sub {
		2344	cf::cleanup "SIG$signal";
		2345	},
		2346	);
		2347	}
		2348	}
		2349
		2350	sub emergency_save() {
		2351	my $freeze_guard = cf::freeze_mainloop;
		2352
		2353	warn "enter emergency perl save\n";
		2354
		2355	cf::sync_job {
		2356	# use a peculiar iteration method to avoid tripping on perl
		2357	# refcount bugs in for. also avoids problems with players
		2358	# and maps saved/destroyed asynchronously.
		2359	warn "begin emergency player save\n";
		2360	for my $login (keys %cf::PLAYER) {
		2361	my $pl = $cf::PLAYER{$login} or next;
		2362	$pl->valid or next;
		2363	$pl->save;
		2364	}
		2365	warn "end emergency player save\n";
		2366
		2367	warn "begin emergency map save\n";
		2368	for my $path (keys %cf::MAP) {
		2369	my $map = $cf::MAP{$path} or next;
		2370	$map->valid or next;
		2371	$map->save;
		2372	}
		2373	warn "end emergency map save\n";
		2374	};
		2375
		2376	warn "leave emergency perl save\n";
		2377	}
		2378
1275	sub _perl_reload() {	2379	sub reload() {
		2380	# can/must only be called in main
		2381	if ($Coro::current != $Coro::main) {
		2382	warn "can only reload from main coroutine";
		2383	return;
		2384	}
		2385
1276	warn "reloading...";	2386	warn "reloading...";
1277		2387
		2388	warn "cancelling server ticker";
		2389	$TICK_WATCHER->cancel;
		2390
		2391	cf::emergency_save;
		2392
1278	eval {	2393	eval {
1279	local $FREEZE = 1;	2394	# if anything goes wrong in here, we should simply crash as we already saved
1280		2395
1281	cf::emergency_save;	2396	warn "syncing database to disk";
		2397	cf::db_sync;
1282		2398
1283	# cancel all watchers	2399	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2400	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2401	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2402	}
1287		2403
		2404	warn "flushing outstanding aio requests";
		2405	for (;;) {
		2406	IO::AIO::flush;
		2407	Coro::cede;
		2408	last unless IO::AIO::nreqs;
		2409	warn "iterate...";
		2410	}
		2411
1288	# cancel all extension coros	2412	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2413	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2414	%EXT_CORO = ();
1291		2415
1292	# unload all extensions	2416	warn "removing commands";
1293	for (@exts) {	2417	%COMMAND = ();
		2418
		2419	warn "removing ext commands";
		2420	%EXTCMD = ();
		2421
		2422	warn "unloading/nuking all extensions";
		2423	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2424	warn "... unloading $pkg";
1295	unload_extension $_;	2425
		2426	if (my $cb = $pkg->can ("unload")) {
		2427	eval {
		2428	$cb->($pkg);
		2429	1
		2430	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2431	}
1297		2432
		2433	warn "... nuking $pkg";
		2434	Symbol::delete_package $pkg;
		2435	}
		2436
1298	# unload all modules loaded from $LIBDIR	2437	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2438	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2440
1302	warn "removing <$k>";	2441	warn "... unloading $k";
1303	delete $INC{$k};	2442	delete $INC{$k};
1304		2443
1305	$k =~ s/\.pm$//;	2444	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2445	$k =~ s/\//::/g;
1307		2446
…		…
1310	}	2449	}
1311		2450
1312	Symbol::delete_package $k;	2451	Symbol::delete_package $k;
1313	}	2452	}
1314		2453
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2454	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2455	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2457
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2458	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2459	delete $INC{"cf.pm"};
1328		2460
1329	# don't, removes xs symbols, too,	2461	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2462	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2463	#Symbol::delete_package __PACKAGE__;
1332		2464
1333	# reload cf.pm	2465	warn "unload completed, starting to reload now";
		2466
1334	warn "reloading cf.pm";	2467	warn "reloading cf.pm";
1335	require cf;	2468	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2470
1338	# load config and database again	2471	warn "loading config and database again";
1339	cf::cfg_load;	2472	cf::cfg_load;
1340	cf::db_load;	2473	cf::db_load;
1341		2474
1342	# load extensions
1343	warn "load extensions";	2475	warn "loading extensions";
1344	cf::load_extensions;	2476	cf::load_extensions;
1345		2477
1346	# reattach attachments to objects	2478	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2479	_global_reattach;
		2480	warn "reattaching attachments to maps";
		2481	reattach $_ for values %MAP;
		2482
		2483	warn "loading reloadable resources";
		2484	load_resources;
		2485
		2486	warn "restarting server ticker";
		2487
		2488	$TICK_WATCHER->start;
1349	};	2489	};
1350	warn $@ if $@;	2490
		2491	if ($@) {
		2492	warn $@;
		2493	warn "error while reloading, exiting.";
		2494	exit 1;
		2495	}
1351		2496
1352	warn "reloaded";	2497	warn "reloaded";
1353	};	2498	};
1354		2499
1355	sub perl_reload() {	2500	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2501
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2502	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2503	my ($who, $arg) = @_;
1363		2504
1364	if ($who->flag (FLAG_WIZ)) {	2505	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2506	$who->message ("reloading server.");
1366	_perl_reload;	2507
		2508	# doing reload synchronously and two reloads happen back-to-back,
		2509	# coro crashes during coro_state_free->destroy here.
		2510
		2511	$RELOAD_WATCHER ||= Event->timer (
		2512	reentrant => 0,
		2513	after => 0,
		2514	data => WF_AUTOCANCEL,
		2515	cb => sub {
		2516	reload;
		2517	undef $RELOAD_WATCHER;
		2518	},
		2519	);
1367	}	2520	}
1368	};	2521	};
1369		2522
1370	unshift @INC, $LIBDIR;	2523	unshift @INC, $LIBDIR;
		2524
		2525	my $bug_warning = 0;
1371		2526
1372	$TICK_WATCHER = Event->timer (	2527	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2528	reentrant => 0,
		2529	parked => 1,
1374	prio => 0,	2530	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2531	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
1377	cb => sub {	2533	cb => sub {
1378	unless ($FREEZE) {	2534	if ($Coro::current != $Coro::main) {
		2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2536	unless ++$bug_warning > 10;
		2537	return;
		2538	}
		2539
		2540	$NOW = Event::time;
		2541
1379	cf::server_tick; # one server iteration	2542	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2543	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2544	$NEXT_TICK += $TICK;
		2545
		2546	$WAIT_FOR_TICK->broadcast;
		2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2548
		2549	Event::sweep;
		2550	Coro::cede_notself;
		2551
		2552	# my $AFTER = Event::time;
		2553	# warn $AFTER - $NOW;#d#
1384		2554
1385	# if we are delayed by four ticks or more, skip them all	2555	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2557
1388	$TICK_WATCHER->at ($NEXT_TICK);	2558	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2559	$TICK_WATCHER->start;
1390	},	2560	},
1391	);	2561	);
1392		2562
		2563	{
		2564	BDB::max_poll_time $TICK * 0.1;
		2565	$BDB_POLL_WATCHER = Event->io (
		2566	reentrant => 0,
		2567	fd => BDB::poll_fileno,
		2568	poll => 'r',
		2569	prio => 0,
		2570	data => WF_AUTOCANCEL,
		2571	cb => \&BDB::poll_cb,
		2572	);
		2573	BDB::min_parallel 8;
		2574
		2575	BDB::set_sync_prepare {
		2576	my $status;
		2577	my $current = $Coro::current;
		2578	(
		2579	sub {
		2580	$status = $!;
		2581	$current->ready; undef $current;
		2582	},
		2583	sub {
		2584	Coro::schedule while defined $current;
		2585	$! = $status;
		2586	},
		2587	)
		2588	};
		2589
		2590	unless ($DB_ENV) {
		2591	$DB_ENV = BDB::db_env_create;
		2592
		2593	cf::sync_job {
		2594	BDB::db_env_open
		2595	$DB_ENV,
		2596	$BDB_ENV_DIR,
		2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2599	0666;
		2600
		2601	cf::cleanup "$!" if $!;
		2602
		2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2604	$DB_ENV->set_lk_detect;
		2605	};
		2606	}
		2607	}
		2608
		2609	{
		2610	IO::AIO::min_parallel 8;
		2611
		2612	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2613	IO::AIO::max_poll_time $TICK * 0.1;
1394		2614	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2615	reentrant => 0,
		2616	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2617	poll => 'r',
1397	prio => 5,	2618	prio => 6,
1398	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2620	cb => \&IO::AIO::poll_cb,
		2621	);
		2622	}
1400		2623
1401	# we must not ever block the main coroutine	2624	$WRITE_RUNTIME_WATCHER = Event->timer (
1402	$Coro::idle = sub {	2625	reentrant => 0,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2626	data => WF_AUTOCANCEL,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2627	after => 1,
		2628	interval => 10,
		2629	prio => 6, # keep it lowest so it acts like a watchdog
1405	(Coro::unblock_sub {	2630	cb => Coro::unblock_sub {
1406	Event::one_event;	2631	write_runtime
1407	})->();	2632	or warn "ERROR: unable to write runtime file: $!";
1408	};	2633	},
		2634	);
		2635
		2636	END { cf::emergency_save }
1409		2637
1410	1	2638	1
1411		2639

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