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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.213 by root, Tue Feb 13 20:01:04 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
19	use IO::AIO 2.3;	24	use IO::AIO 2.32 ();
20	use YAML::Syck ();	25	use YAML::Syck ();
21	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
22		30
23	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
24		34
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
27		37
28	$Coro::main->prio (Coro::PRIO_MIN);	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		39
32	our %COMMAND = ();	40	our %COMMAND = ();
33	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
35		47
36	our @EVENT;	48	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
38		50
39	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
41	our $NEXT_TICK;	55	our $NEXT_TICK;
		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;
42		61
43	our %CFG;	62	our %CFG;
44		63
45	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
46		99
47	#############################################################################	100	#############################################################################
48		101
49	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
50		103
51	=over 4	104	=over 4
52		105
53	=item $cf::UPTIME	106	=item $cf::UPTIME
54		107
55	The timestamp of the server start (so not actually an uptime).	108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
56		114
57	=item $cf::LIBDIR	115	=item $cf::LIBDIR
58		116
59	The perl library directory, where extensions and cf-specific modules can	117	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	118	be found. It will be added to C<@INC> automatically.
61		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
62	=item $cf::TICK	124	=item $cf::TICK
63		125
64	The interval between server ticks, in seconds.	126	The interval between server ticks, in seconds.
65		127
66	=item %cf::CFG	128	=item %cf::CFG
67		129
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	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.
70		139
71	=back	140	=back
72		141
73	=cut	142	=cut
74		143
75	BEGIN {	144	BEGIN {
76	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
78	$msg .= "\n"	149	$msg .= "\n"
79	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
80		151
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
83	};	153	};
84	}	154	}
85		155
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		175
106	$Event::DIED = sub {	176	$Event::DIED = sub {
107	warn "error in event callback: @_";	177	warn "error in event callback: @_";
108	};	178	};
109		179
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
115		181
116	=over 4	182	=over 4
117		183
		184	=item dumpval $ref
		185
118	=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	}
119		206
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		208
122	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
123		210
…		…
137	=cut	224	=cut
138		225
139	sub to_json($) {	226	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
		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	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
		294
		295	=item cf::sync_job { BLOCK }
		296
		297	The design of crossfire+ requires that the main coro ($Coro::main) is
		298	always able to handle events or runnable, as crossfire+ is only partly
		299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		300
		301	If it must be done, put the blocking parts into C<sync_job>. This will run
		302	the given BLOCK in another coroutine while waiting for the result. The
		303	server will be frozen during this time, so the block should either finish
		304	fast or be very important.
		305
		306	=cut
		307
		308	sub sync_job(&) {
		309	my ($job) = @_;
		310
		311	if ($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
		315	# TODO: use suspend/resume instead
		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 $busy;
		326	})->prio (Coro::PRIO_MAX);
		327
		328	while ($busy) {
		329	Coro::cede or Event::one_event;
		330	}
		331
		332	wantarray ? @res : $res[0]
		333	} else {
		334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
		337	}
		338	}
		339
		340	=item $coro = cf::async_ext { BLOCK }
		341
		342	Like async, but this coro is automatically being canceled when the
		343	extension calling this is being unloaded.
		344
		345	=cut
		346
		347	sub async_ext(&) {
		348	my $cb = shift;
		349
		350	my $coro = &Coro::async ($cb);
		351
		352	$coro->on_destroy (sub {
		353	delete $EXT_CORO{$coro+0};
		354	});
		355	$EXT_CORO{$coro+0} = $coro;
		356
		357	$coro
		358	}
		359
		360	sub write_runtime {
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
142	}	384	}
143		385
144	=back	386	=back
145		387
146	=cut	388	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	520	our @CB_MAP = ();
279		521
280	my %attachment;	522	my %attachment;
281		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
282	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
284		532
285	use sort 'stable';	533	use sort 'stable';
286		534
…		…
457	# object support	705	# object support
458		706
459	sub reattach {	707	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		712
463	my $registry = $obj->registry;	713	my $registry = $obj->registry;
464		714
465	@$registry = ();	715	@$registry = ();
466		716
…		…
505	);	755	);
506		756
507	sub object_freezer_save {	757	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	758	my ($filename, $rdata, $objs) = @_;
509		759
		760	sync_job {
510	if (length $$rdata) {	761	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	762	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
513		764
514	if (open my $fh, ">:raw", "$filename~") {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
522	close $fh;	769	close $fh;
		770
		771	if (@$objs) {
		772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		773	chmod SAVE_MODE, $fh;
		774	my $data = Storable::nfreeze { version => 1, objs => $objs };
		775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
523	rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
		779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
524	} else {	785	} else {
525	unlink "$filename.pst";	786	warn "FATAL: $filename~: $!\n";
526	}	787	}
527
528	rename "$filename~", $filename;
529	} else {	788	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	789	aio_unlink $filename;
534	unlink "$filename.pst";	790	aio_unlink "$filename.pst";
		791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
535	}	798	}
536	}	799	}
537		800
538	sub object_freezer_as_string {	801	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
544	}	807	}
545		808
546	sub object_thawer_load {	809	sub object_thawer_load {
547	my ($filename) = @_;	810	my ($filename) = @_;
548		811
549	local $/;	812	my ($data, $av);
550		813
551	my $av;	814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
552		816
553	#TODO: use sysread etc.	817	(aio_load $filename, $data) >= 0
554	if (open my $data, "<:raw:perlio", $filename) {	818	or return;
555	$data = <$data>;	819
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
		821	(aio_load "$filename.pst", $av) >= 0
		822	or return;
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	823	$av = eval { (Storable::thaw $av)->{objs} };
558	}	824	}
		825
		826	warn sprintf "loading %s (%d)\n",
		827	$filename, length $data, scalar @{$av || []};#d#
559	return ($data, $av);	828	return ($data, $av);
560	}
561
562	()
563	}	829	}
564		830
565	#############################################################################	831	#############################################################################
566	# command handling &c	832	# command handling &c
567		833
…		…
591	=cut	857	=cut
592		858
593	sub register_extcmd {	859	sub register_extcmd {
594	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
595		861
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
600	}	863	}
601		864
602	cf::player->attach (	865	cf::player->attach (
603	on_command => sub {	866	on_command => sub {
604	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
617		880
618	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
619		882
620	if (ref $msg) {	883	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	887	}
625	}	888	}
626	} else {	889	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		892
630	cf::override;	893	cf::override;
631	},	894	},
632	);	895	);
633		896
634	sub register {
635	my ($base, $pkg) = @_;
636
637	#TODO
638	}
639
640	sub load_extension {	897	sub load_extension {
641	my ($path) = @_;	898	my ($path) = @_;
642		899
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
644	my $base = $1;	901	my $base = $1;
645	my $pkg = $1;	902	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
648		905
649	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
650		907
651	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
652	or die "$path: $!";	909	or die "$path: $!";
653		910
654	my $source =	911	my $source =
655	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
658	. "\n};\n1";	915	. "\n};\n1";
659		916
660	eval $source	917	unless (eval $source) {
661	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
662	: "extension disabled.\n";	919	: "extension disabled.\n";
663		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
664	push @exts, $pkg;	921	warn $@;
665	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
666		923	exit 1;
667	# no strict 'refs';	924	}
668	# @{"$pkg\::ISA"} = ext::;	925	die $@;
669
670	register $base, $pkg;
671	}
672
673	sub unload_extension {
674	my ($pkg) = @_;
675
676	warn "removing extension $pkg\n";
677
678	# remove hooks
679	#TODO
680	# for my $idx (0 .. $#PLUGIN_EVENT) {
681	# delete $hook[$idx]{$pkg};
682	# }	926	}
683		927
684	# remove commands	928	push @EXTS, $pkg;
685	for my $name (keys %COMMAND) {
686	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
687
688	if (@cb) {
689	$COMMAND{$name} = \@cb;
690	} else {
691	delete $COMMAND{$name};
692	}
693	}
694
695	# remove extcmds
696	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
697	delete $EXTCMD{$name};
698	}
699
700	if (my $cb = $pkg->can ("unload")) {
701	eval {
702	$cb->($pkg);
703	1
704	} or warn "$pkg unloaded, but with errors: $@";
705	}
706
707	Symbol::delete_package $pkg;
708	}	929	}
709		930
710	sub load_extensions {	931	sub load_extensions {
711	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
712	next unless -r $ext;	933	next unless -r $ext;
…		…
716	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
717	}	938	}
718	}	939	}
719		940
720	#############################################################################	941	#############################################################################
721	# load/save/clean perl data associated with a map
722		942
723	*cf::mapsupport::on_clean = sub {	943	=head2 CORE EXTENSIONS
		944
		945	Functions and methods that extend core crossfire objects.
		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
		953	=head3 cf::player
		954
		955	=over 4
		956
		957	=item cf::player::find $login
		958
		959	Returns the given player object, loading it if necessary (might block).
		960
		961	=cut
		962
		963	sub playerdir($) {
		964	cf::localdir
		965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
		1111	}
		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . cf::to_json \%msg);
		1125	}
		1126
		1127	package cf;
		1128
		1129	=back
		1130
		1131
		1132	=head3 cf::map
		1133
		1134	=over 4
		1135
		1136	=cut
		1137
		1138	package cf::map;
		1139
		1140	use Fcntl;
		1141	use Coro::AIO;
		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
		1147	our $MAX_RESET = 3600;
		1148	our $DEFAULT_RESET = 3000;
		1149
		1150	sub generate_random_map {
		1151	my ($self, $rmp) = @_;
		1152	# mit "rum" bekleckern, nicht
		1153	$self->_create_random_map (
		1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1157	$rmp->{exit_on_final_map},
		1158	$rmp->{xsize}, $rmp->{ysize},
		1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1295	}
		1296
		1297	# and all this just because we cannot iterate over
		1298	# all maps in C++...
		1299	sub change_all_map_light {
		1300	my ($change) = @_;
		1301
		1302	$_->change_map_light ($change)
		1303	for grep $_->outdoor, values %cf::MAP;
		1304	}
		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
724	my ($map) = @_;	1475	my ($map) = @_;
725		1476
726	my $path = $map->tmpname;	1477	my @diag; # diagonal neighbours
727	defined $path or return;
728		1478
729	unlink "$path.pst";	1479	for (0 .. 3) {
730	};	1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
731		1485
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
733		1489
734	#############################################################################	1490	for (@diag) {
735	# load/save perl data associated with player->ob objects	1491	my $neigh = find @$_
736		1492	or next;
737	sub all_objects(@) {	1493	$neigh->load;
738	@_, map all_objects ($_->inv), @_	1494	}
739	}	1495	}
740		1496
741	# TODO: compatibility cruft, remove when no longer needed	1497	sub find_sync {
742	cf::player->attach (	1498	my ($path, $origin) = @_;
743	on_load => sub {
744	my ($pl, $path) = @_;
745		1499
746	for my $o (all_objects $pl->ob) {	1500	cf::sync_job { find $path, $origin }
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1501	}
748	$o->set_ob_key_value ("_perl_data");
749		1502
750	%$o = %{ Storable::thaw pack "H*", $value };	1503	sub do_load_sync {
		1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
751	}	1530	}
752	}	1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
		1539	sub save {
		1540	my ($self) = @_;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
		1561	if ($uniq) {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1564	} else {
		1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
753	},	1566	}
754	);	1567	}
755		1568
756	#############################################################################	1569	sub swap_out {
		1570	my ($self) = @_;
757		1571
758	=head2 CORE EXTENSIONS	1572	# save first because save cedes
		1573	$self->save;
759		1574
760	Functions and methods that extend core crossfire objects.	1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
761		1576
762	=head3 cf::player	1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	$self->in_memory (cf::MAP_SWAPPED);
		1615
		1616	# need to save uniques path
		1617	unless ($self->{deny_save}) {
		1618	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1619
		1620	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1621	if $uniq;
		1622	}
		1623
		1624	delete $cf::MAP{$self->path};
		1625
		1626	$self->clear;
		1627
		1628	$_->clear_links_to ($self) for values %cf::MAP;
		1629
		1630	$self->unlink_save;
		1631	$self->destroy;
		1632	}
		1633
		1634	my $nuke_counter = "aaaa";
		1635
		1636	sub nuke {
		1637	my ($self) = @_;
		1638
		1639	delete $cf::MAP{$self->path};
		1640
		1641	$self->unlink_save;
		1642
		1643	bless $self, "cf::map";
		1644	delete $self->{deny_reset};
		1645	$self->{deny_save} = 1;
		1646	$self->reset_timeout (1);
		1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1648
		1649	$cf::MAP{$self->path} = $self;
		1650
		1651	$self->reset; # polite request, might not happen
		1652	}
		1653
		1654	=item cf::map::unique_maps
		1655
		1656	Returns an arrayref of paths of all shared maps that have
		1657	instantiated unique items. May block.
		1658
		1659	=cut
		1660
		1661	sub unique_maps() {
		1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1663	or return;
		1664
		1665	my @paths;
		1666
		1667	for (@$files) {
		1668	utf8::decode $_;
		1669	next if /\.pst$/;
		1670	next unless /^$PATH_SEP/o;
		1671
		1672	push @paths, cf::map::normalise $_;
		1673	}
		1674
		1675	\@paths
		1676	}
		1677
		1678	package cf;
		1679
		1680	=back
		1681
		1682	=head3 cf::object
		1683
		1684	=cut
		1685
		1686	package cf::object;
763		1687
764	=over 4	1688	=over 4
765		1689
766	=item cf::player::exists $login	1690	=item $ob->inv_recursive
767		1691
768	Returns true when the given account exists.	1692	Returns the inventory of the object _and_ their inventories, recursively.
769		1693
770	=cut	1694	=cut
771		1695
772	sub cf::player::exists($) {	1696	sub inv_recursive_;
773	cf::player::find $_[0]	1697	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1698	map { $_, inv_recursive_ $_->inv } @_
775	}	1699	}
776		1700
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1701	sub inv_recursive {
778		1702	inv_recursive_ inv $_[0]
779	Sends an ext reply to the player.
780
781	=cut
782
783	sub cf::player::ext_reply($$$%) {
784	my ($self, $id, %msg) = @_;
785
786	$msg{msgid} = $id;
787
788	$self->send ("ext " . to_json \%msg);
789	}	1703	}
		1704
		1705	package cf;
790		1706
791	=back	1707	=back
792		1708
793	=head3 cf::object::player	1709	=head3 cf::object::player
794		1710
…		…
832	(ref $cf::CFG{"may_$access"}	1748	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1749	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1750	: $cf::CFG{"may_$access"})
835	}	1751	}
836		1752
		1753	=item $player_object->enter_link
		1754
		1755	Freezes the player and moves him/her to a special map (C<{link}>).
		1756
		1757	The player should be reasonably safe there for short amounts of time. You
		1758	I<MUST> call C<leave_link> as soon as possible, though.
		1759
		1760	Will never block.
		1761
		1762	=item $player_object->leave_link ($map, $x, $y)
		1763
		1764	Moves the player out of the special C<{link}> map onto the specified
		1765	map. If the map is not valid (or omitted), the player will be moved back
		1766	to the location he/she was before the call to C<enter_link>, or, if that
		1767	fails, to the emergency map position.
		1768
		1769	Might block.
		1770
		1771	=cut
		1772
		1773	sub link_map {
		1774	unless ($LINK_MAP) {
		1775	$LINK_MAP = cf::map::find "{link}"
		1776	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1777	$LINK_MAP->load;
		1778	}
		1779
		1780	$LINK_MAP
		1781	}
		1782
		1783	sub cf::object::player::enter_link {
		1784	my ($self) = @_;
		1785
		1786	$self->deactivate_recursive;
		1787
		1788	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1789
		1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1791	if $self->map;
		1792
		1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1794	}
		1795
		1796	sub cf::object::player::leave_link {
		1797	my ($self, $map, $x, $y) = @_;
		1798
		1799	my $link_pos = delete $self->{_link_pos};
		1800
		1801	unless ($map) {
		1802	# restore original map position
		1803	($map, $x, $y) = @{ $link_pos || [] };
		1804	$map = cf::map::find $map;
		1805
		1806	unless ($map) {
		1807	($map, $x, $y) = @$EMERGENCY_POSITION;
		1808	$map = cf::map::find $map
		1809	or die "FATAL: cannot load emergency map\n";
		1810	}
		1811	}
		1812
		1813	($x, $y) = (-1, -1)
		1814	unless (defined $x) && (defined $y);
		1815
		1816	# use -1 or undef as default coordinates, not 0, 0
		1817	($x, $y) = ($map->enter_x, $map->enter_y)
		1818	if $x <=0 && $y <= 0;
		1819
		1820	$map->load;
		1821	$map->load_diag;
		1822
		1823	return unless $self->contr->active;
		1824	$self->activate_recursive;
		1825	$self->enter_map ($map, $x, $y);
		1826	}
		1827
		1828	cf::player->attach (
		1829	on_logout => sub {
		1830	my ($pl) = @_;
		1831
		1832	# abort map switching before logout
		1833	if ($pl->ob->{_link_pos}) {
		1834	cf::sync_job {
		1835	$pl->ob->leave_link
		1836	};
		1837	}
		1838	},
		1839	on_login => sub {
		1840	my ($pl) = @_;
		1841
		1842	# try to abort aborted map switching on player login :)
		1843	# should happen only on crashes
		1844	if ($pl->ob->{_link_pos}) {
		1845	$pl->ob->enter_link;
		1846	(async {
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	$pl->ob->reply (undef,
		1850	"There was an internal problem at your last logout, "
		1851	. "the server will try to bring you to your intended destination in a second.",
		1852	cf::NDI_RED);
		1853	Coro::Timer::sleep 1;
		1854	$pl->ob->leave_link;
		1855	})->prio (2);
		1856	}
		1857	},
		1858	);
		1859
		1860	=item $player_object->goto ($path, $x, $y)
		1861
		1862	=cut
		1863
		1864	sub cf::object::player::goto {
		1865	my ($self, $path, $x, $y) = @_;
		1866
		1867	$self->enter_link;
		1868
		1869	(async {
		1870	my $map = eval {
		1871	my $map = cf::map::find $path;
		1872	$map = $map->customise_for ($self) if $map;
		1873	$map
		1874	} or
		1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1876
		1877	$self->leave_link ($map, $x, $y);
		1878	})->prio (1);
		1879	}
		1880
		1881	=item $player_object->enter_exit ($exit_object)
		1882
		1883	=cut
		1884
		1885	sub parse_random_map_params {
		1886	my ($spec) = @_;
		1887
		1888	my $rmp = { # defaults
		1889	xsize => (cf::rndm 15, 40),
		1890	ysize => (cf::rndm 15, 40),
		1891	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1892	#layout => string,
		1893	};
		1894
		1895	for (split /\n/, $spec) {
		1896	my ($k, $v) = split /\s+/, $_, 2;
		1897
		1898	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1899	}
		1900
		1901	$rmp
		1902	}
		1903
		1904	sub prepare_random_map {
		1905	my ($exit) = @_;
		1906
		1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1908
		1909	# all this does is basically replace the /! path by
		1910	# a new random map path (?random/...) with a seed
		1911	# that depends on the exit object
		1912
		1913	my $rmp = parse_random_map_params $exit->msg;
		1914
		1915	if ($exit->map) {
		1916	$rmp->{region} = $exit->region->name;
		1917	$rmp->{origin_map} = $exit->map->path;
		1918	$rmp->{origin_x} = $exit->x;
		1919	$rmp->{origin_y} = $exit->y;
		1920	}
		1921
		1922	$rmp->{random_seed} ||= $exit->random_seed;
		1923
		1924	my $data = cf::to_json $rmp;
		1925	my $md5 = Digest::MD5::md5_hex $data;
		1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1927
		1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1929	aio_write $fh, 0, (length $data), $data, 0;
		1930	undef $fh;
		1931	aio_rename "$meta~", $meta;
		1932
		1933	$exit->slaying ("?random/$md5");
		1934	$exit->msg (undef);
		1935	}
		1936	}
		1937
		1938	sub cf::object::player::enter_exit {
		1939	my ($self, $exit) = @_;
		1940
		1941	return unless $self->type == cf::PLAYER;
		1942
		1943	if ($exit->slaying eq "/!") {
		1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1945	cf::sync_job { prepare_random_map $exit };
		1946	}
		1947
		1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1949	my $hp = $exit->stats->hp;
		1950	my $sp = $exit->stats->sp;
		1951
		1952	$self->enter_link;
		1953
		1954	(async {
		1955	$self->deactivate_recursive; # just to be sure
		1956	unless (eval {
		1957	$self->goto ($slaying, $hp, $sp);
		1958
		1959	1;
		1960	}) {
		1961	$self->message ("Something went wrong deep within the crossfire server. "
		1962	. "I'll try to bring you back to the map you were before. "
		1963	. "Please report this to the dungeon master!",
		1964	cf::NDI_UNIQUE | cf::NDI_RED);
		1965
		1966	warn "ERROR in enter_exit: $@";
		1967	$self->leave_link;
		1968	}
		1969	})->prio (1);
		1970	}
		1971
837	=head3 cf::client	1972	=head3 cf::client
838		1973
839	=over 4	1974	=over 4
840		1975
841	=item $client->send_drawinfo ($text, $flags)	1976	=item $client->send_drawinfo ($text, $flags)
…		…
884	on_reply => sub {	2019	on_reply => sub {
885	my ($ns, $msg) = @_;	2020	my ($ns, $msg) = @_;
886		2021
887	# this weird shuffling is so that direct followup queries	2022	# this weird shuffling is so that direct followup queries
888	# get handled first	2023	# get handled first
889	my $queue = delete $ns->{query_queue};	2024	my $queue = delete $ns->{query_queue}
		2025	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		2026
891	(shift @$queue)->[1]->($msg);	2027	(shift @$queue)->[1]->($msg);
		2028	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
892		2029
893	push @{ $ns->{query_queue} }, @$queue;	2030	push @{ $ns->{query_queue} }, @$queue;
894		2031
895	if (@{ $ns->{query_queue} } == @$queue) {	2032	if (@{ $ns->{query_queue} } == @$queue) {
896	if (@$queue) {	2033	if (@$queue) {
…		…
900	}	2037	}
901	}	2038	}
902	},	2039	},
903	);	2040	);
904		2041
905	=item $client->coro (\&cb)	2042	=item $client->async (\&cb)
906		2043
907	Create a new coroutine, running the specified callback. The coroutine will	2044	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	2045	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	2046	or loss of connection).
910		2047
911	=cut	2048	=cut
912		2049
913	sub cf::client::coro {	2050	sub cf::client::async {
914	my ($self, $cb) = @_;	2051	my ($self, $cb) = @_;
915		2052
916	my $coro; $coro = async {	2053	my $coro = &Coro::async ($cb);
917	eval {	2054
918	$cb->();	2055	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	2056	delete $self->{_coro}{$coro+0};
922	};	2057	});
923		2058
924	$self->{_coro}{$coro+0} = $coro;	2059	$self->{_coro}{$coro+0} = $coro;
		2060
		2061	$coro
925	}	2062	}
926		2063
927	cf::client->attach (	2064	cf::client->attach (
928	on_destroy => sub {	2065	on_destroy => sub {
929	my ($ns) = @_;	2066	my ($ns) = @_;
…		…
1057	The parameter C<$family> should best start with the name of the extension	2194	The parameter C<$family> should best start with the name of the extension
1058	using it, it should be unique.	2195	using it, it should be unique.
1059		2196
1060	=over 4	2197	=over 4
1061		2198
1062	=item $hashref = cf::db_get $family
1063
1064	Return a hashref for use by the extension C<$family>, which can be
1065	modified. After modifications, you have to call C<cf::db_dirty> or
1066	C<cf::db_sync>.
1067
1068	=item $value = cf::db_get $family => $key	2199	=item $value = cf::db_get $family => $key
1069		2200
1070	Returns a single value from the database	2201	Returns a single value from the database.
1071
1072	=item cf::db_put $family => $hashref
1073
1074	Stores the given family hashref into the database. Updates are delayed, if
1075	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1076		2202
1077	=item cf::db_put $family => $key => $value	2203	=item cf::db_put $family => $key => $value
1078		2204
1079	Stores the given C<$value> in the family hash. Updates are delayed, if you	2205	Stores the given C<$value> in the family.
1080	want the data to be synced to disk immediately, use C<cf::db_sync>.
1081
1082	=item cf::db_dirty
1083
1084	Marks the database as dirty, to be updated at a later time.
1085
1086	=item cf::db_sync
1087
1088	Immediately write the database to disk I<if it is dirty>.
1089		2206
1090	=cut	2207	=cut
1091		2208
1092	our $DB;	2209	our $DB;
1093		2210
1094	{	2211	sub db_init {
		2212	unless ($DB) {
		2213	$DB = BDB::db_create $DB_ENV;
		2214
		2215	cf::sync_job {
		2216	eval {
		2217	$DB->set_flags (BDB::CHKSUM);
		2218
		2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2221	cf::cleanup "db_open(db): $!" if $!;
		2222	};
		2223	cf::cleanup "db_open(db): $@" if $@;
		2224	};
		2225
1095	my $path = cf::localdir . "/database.pst";	2226	my $path = cf::localdir . "/database.pst";
		2227	if (stat $path) {
		2228	cf::sync_job {
		2229	my $pst = Storable::retrieve $path;
1096		2230
1097	sub db_load() {	2231	cf::db_put (board => data => $pst->{board});
1098	warn "loading database $path\n";#d# remove later	2232	cf::db_put (guildrules => data => $pst->{guildrules});
1099	$DB = stat $path ? Storable::retrieve $path : { };	2233	cf::db_put (rent => balance => $pst->{rent}{balance});
1100	}	2234	BDB::db_env_txn_checkpoint $DB_ENV;
1101		2235
1102	my $pid;	2236	unlink $path;
1103
1104	sub db_save() {
1105	warn "saving database $path\n";#d# remove later
1106	waitpid $pid, 0 if $pid;
1107	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;
1111	cf::_exit 0 if defined $pid;
1112	}	2237	};
1113	}
1114
1115	my $dirty;
1116
1117	sub db_sync() {
1118	db_save if $dirty;
1119	undef $dirty;
1120	}
1121
1122	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1123	db_sync;
1124	});
1125
1126	sub db_dirty() {
1127	$dirty = 1;
1128	$idle->start;
1129	}
1130
1131	sub db_get($;$) {
1132	@_ >= 2
1133	? $DB->{$_[0]}{$_[1]}
1134	: ($DB->{$_[0]} ||= { })
1135	}
1136
1137	sub db_put($$;$) {
1138	if (@_ >= 3) {
1139	$DB->{$_[0]}{$_[1]} = $_[2];
1140	} else {
1141	$DB->{$_[0]} = $_[1];
1142	}
1143	db_dirty;
1144	}
1145
1146	cf::global->attach (
1147	prio => 10000,
1148	on_cleanup => sub {
1149	db_sync;
1150	},	2238	}
1151	);	2239	}
		2240	}
		2241
		2242	sub db_get($$) {
		2243	my $key = "$_[0]/$_[1]";
		2244
		2245	cf::sync_job {
		2246	BDB::db_get $DB, undef, $key, my $data;
		2247
		2248	$! ? ()
		2249	: Compress::LZF::sthaw $data
		2250	}
		2251	}
		2252
		2253	sub db_put($$$) {
		2254	BDB::dbreq_pri 4;
		2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1152	}	2256	}
1153		2257
1154	#############################################################################	2258	#############################################################################
1155	# the server's main()	2259	# the server's init and main functions
		2260
		2261	sub load_resources {
		2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2263	or die "unable to load regions file\n";#d#
		2264	}
1156		2265
1157	sub cfg_load {	2266	sub cfg_load {
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2267	open my $fh, "<:utf8", cf::confdir . "/config"
1159	or return;	2268	or return;
1160		2269
1161	local $/;	2270	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2271	*CFG = YAML::Syck::Load <$fh>;
		2272
		2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2274
		2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2277
		2278	if (exists $CFG{mlockall}) {
		2279	eval {
		2280	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2281	and die "WARNING: m(un)lockall failed: $!\n";
		2282	};
		2283	warn $@ if $@;
		2284	}
		2285	}
		2286
		2287	sub init {
		2288	load_resources;
1163	}	2289	}
1164		2290
1165	sub main {	2291	sub main {
		2292	# we must not ever block the main coroutine
		2293	local $Coro::idle = sub {
		2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2295	(async {
		2296	Event::one_event;
		2297	})->prio (Coro::PRIO_MAX);
		2298	};
		2299
1166	cfg_load;	2300	cfg_load;
1167	db_load;	2301	db_init;
1168	load_extensions;	2302	load_extensions;
		2303
		2304	$TICK_WATCHER->start;
		2305	$WRITE_RUNTIME_WATCHER->start;
1169	Event::loop;	2306	Event::loop;
1170	}	2307	}
1171		2308
1172	#############################################################################	2309	#############################################################################
1173	# initialisation	2310	# initialisation and cleanup
1174		2311
		2312	# install some emergency cleanup handlers
		2313	BEGIN {
		2314	for my $signal (qw(INT HUP TERM)) {
		2315	Event->signal (
		2316	reentrant => 0,
		2317	data => WF_AUTOCANCEL,
		2318	signal => $signal,
		2319	prio => 0,
		2320	cb => sub {
		2321	cf::cleanup "SIG$signal";
		2322	},
		2323	);
		2324	}
		2325	}
		2326
		2327	sub emergency_save() {
		2328	my $freeze_guard = cf::freeze_mainloop;
		2329
		2330	warn "enter emergency perl save\n";
		2331
		2332	cf::sync_job {
		2333	# use a peculiar iteration method to avoid tripping on perl
		2334	# refcount bugs in for. also avoids problems with players
		2335	# and maps saved/destroyed asynchronously.
		2336	warn "begin emergency player save\n";
		2337	for my $login (keys %cf::PLAYER) {
		2338	my $pl = $cf::PLAYER{$login} or next;
		2339	$pl->valid or next;
		2340	$pl->save;
		2341	}
		2342	warn "end emergency player save\n";
		2343
		2344	warn "begin emergency map save\n";
		2345	for my $path (keys %cf::MAP) {
		2346	my $map = $cf::MAP{$path} or next;
		2347	$map->valid or next;
		2348	$map->save;
		2349	}
		2350	warn "end emergency map save\n";
		2351
		2352	warn "begin emergency database checkpoint\n";
		2353	BDB::db_env_txn_checkpoint $DB_ENV;
		2354	warn "end emergency database checkpoint\n";
		2355	};
		2356
		2357	warn "leave emergency perl save\n";
		2358	}
		2359
		2360	sub post_cleanup {
		2361	my ($make_core) = @_;
		2362
		2363	warn Carp::longmess "post_cleanup backtrace"
		2364	if $make_core;
		2365	}
		2366
1175	sub _perl_reload(&) {	2367	sub reload() {
1176	my ($msg) = @_;	2368	# can/must only be called in main
		2369	if ($Coro::current != $Coro::main) {
		2370	warn "can only reload from main coroutine";
		2371	return;
		2372	}
1177		2373
1178	$msg->("reloading...");	2374	warn "reloading...";
1179		2375
1180	eval {	2376	warn "entering sync_job";
1181	# cancel all watchers	2377
		2378	cf::sync_job {
		2379	cf::write_runtime;
		2380	cf::emergency_save;
		2381	cf::write_runtime;
		2382
		2383	warn "syncing database to disk";
		2384	BDB::db_env_txn_checkpoint $DB_ENV;
		2385
		2386	# if anything goes wrong in here, we should simply crash as we already saved
		2387
		2388	warn "cancelling all WF_AUTOCANCEL watchers";
1182	for (Event::all_watchers) {	2389	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2390	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2391	}
1185		2392
1186	# unload all extensions	2393	warn "flushing outstanding aio requests";
1187	for (@exts) {	2394	for (;;) {
1188	$msg->("unloading <$_>");	2395	BDB::flush;
1189	unload_extension $_;	2396	IO::AIO::flush;
		2397	Coro::cede;
		2398	last unless IO::AIO::nreqs || BDB::nreqs;
		2399	warn "iterate...";
		2400	}
		2401
		2402	warn "cancelling all extension coros";
		2403	$_->cancel for values %EXT_CORO;
		2404	%EXT_CORO = ();
		2405
		2406	warn "removing commands";
		2407	%COMMAND = ();
		2408
		2409	warn "removing ext commands";
		2410	%EXTCMD = ();
		2411
		2412	warn "unloading/nuking all extensions";
		2413	for my $pkg (@EXTS) {
		2414	warn "... unloading $pkg";
		2415
		2416	if (my $cb = $pkg->can ("unload")) {
		2417	eval {
		2418	$cb->($pkg);
		2419	1
		2420	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2421	}
1191		2422
		2423	warn "... nuking $pkg";
		2424	Symbol::delete_package $pkg;
		2425	}
		2426
1192	# unload all modules loaded from $LIBDIR	2427	warn "unloading all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2428	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2430
1196	$msg->("removing <$k>");	2431	warn "... unloading $k";
1197	delete $INC{$k};	2432	delete $INC{$k};
1198		2433
1199	$k =~ s/\.pm$//;	2434	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2435	$k =~ s/\//::/g;
1201		2436
…		…
1204	}	2439	}
1205		2440
1206	Symbol::delete_package $k;	2441	Symbol::delete_package $k;
1207	}	2442	}
1208		2443
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2444	warn "getting rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2445	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player 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);
1215		2447
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2448	warn "unloading cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2449	delete $INC{"cf.pm"};
1221		2450
1222	# don't, removes xs symbols, too,	2451	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2452	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2453	#Symbol::delete_package __PACKAGE__;
1225		2454
1226	# reload cf.pm	2455	warn "unload completed, starting to reload now";
		2456
1227	$msg->("reloading cf.pm");	2457	warn "reloading cf.pm";
1228	require cf;	2458	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2460
1231	# load config and database again	2461	warn "loading config and database again";
1232	cf::cfg_load;	2462	cf::cfg_load;
1233	cf::db_load;
1234		2463
1235	# load extensions	2464	warn "loading extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2465	cf::load_extensions;
1238		2466
1239	# reattach attachments to objects	2467	warn "reattaching attachments to objects/players";
1240	$msg->("reattach");
1241	_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 "leaving sync_job";
		2476
		2477	1
		2478	} or do {
		2479	warn $@;
		2480	warn "error while reloading, exiting.";
		2481	exit 1;
1242	};	2482	};
1243	$msg->($@) if $@;
1244		2483
1245	$msg->("reloaded");	2484	warn "reloaded";
1246	};	2485	};
1247		2486
1248	sub perl_reload() {	2487	our $RELOAD_WATCHER; # used only during reload
1249	_perl_reload {
1250	warn $_[0];
1251	print "$_[0]\n";
1252	};
1253	}
1254		2488
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2489	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2490	my ($who, $arg) = @_;
1259		2491
1260	if ($who->flag (FLAG_WIZ)) {	2492	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2493	$who->message ("reloading server.");
1262	warn $_[0];	2494
1263	$who->message ($_[0]);	2495	# doing reload synchronously and two reloads happen back-to-back,
		2496	# coro crashes during coro_state_free->destroy here.
		2497
		2498	$RELOAD_WATCHER ||= Event->timer (
		2499	reentrant => 0,
		2500	after => 0,
		2501	data => WF_AUTOCANCEL,
		2502	cb => sub {
		2503	reload;
		2504	undef $RELOAD_WATCHER;
		2505	},
1264	};	2506	);
1265	}	2507	}
1266	};	2508	};
1267		2509
1268	unshift @INC, $LIBDIR;	2510	unshift @INC, $LIBDIR;
1269		2511
		2512	my $bug_warning = 0;
		2513
1270	$TICK_WATCHER = Event->timer (	2514	$TICK_WATCHER = Event->timer (
		2515	reentrant => 0,
		2516	parked => 1,
1271	prio => 0,	2517	prio => 0,
1272	at => $NEXT_TICK || 1,	2518	at => $NEXT_TICK || $TICK,
1273	data => WF_AUTOCANCEL,	2519	data => WF_AUTOCANCEL,
1274	cb => sub {	2520	cb => sub {
		2521	if ($Coro::current != $Coro::main) {
		2522	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2523	unless ++$bug_warning > 10;
		2524	return;
		2525	}
		2526
		2527	$NOW = Event::time;
		2528
1275	cf::server_tick; # one server iteration	2529	cf::server_tick; # one server iteration
1276		2530	$RUNTIME += $TICK;
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2531	$NEXT_TICK += $TICK;
1279		2532
		2533	$WAIT_FOR_TICK->broadcast;
		2534	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2535
		2536	# my $AFTER = Event::time;
		2537	# warn $AFTER - $NOW;#d#
		2538
1280	# if we are delayed by four ticks or more, skip them all	2539	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2540	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2541
1283	$TICK_WATCHER->at ($NEXT_TICK);	2542	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2543	$TICK_WATCHER->start;
1285	},	2544	},
1286	);	2545	);
1287		2546
		2547	{
		2548	BDB::max_poll_time $TICK * 0.1;
		2549	$BDB_POLL_WATCHER = Event->io (
		2550	reentrant => 0,
		2551	fd => BDB::poll_fileno,
		2552	poll => 'r',
		2553	prio => 0,
		2554	data => WF_AUTOCANCEL,
		2555	cb => \&BDB::poll_cb,
		2556	);
		2557	BDB::min_parallel 8;
		2558
		2559	BDB::set_sync_prepare {
		2560	my $status;
		2561	my $current = $Coro::current;
		2562	(
		2563	sub {
		2564	$status = $!;
		2565	$current->ready; undef $current;
		2566	},
		2567	sub {
		2568	Coro::schedule while defined $current;
		2569	$! = $status;
		2570	},
		2571	)
		2572	};
		2573
		2574	unless ($DB_ENV) {
		2575	$DB_ENV = BDB::db_env_create;
		2576
		2577	cf::sync_job {
		2578	eval {
		2579	BDB::db_env_open
		2580	$DB_ENV,
		2581	$BDB_ENV_DIR,
		2582	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2583	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2584	0666;
		2585
		2586	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2587
		2588	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2589	$DB_ENV->set_lk_detect;
		2590	};
		2591
		2592	cf::cleanup "db_env_open(db): $@" if $@;
		2593	};
		2594	}
		2595	}
		2596
		2597	{
		2598	IO::AIO::min_parallel 8;
		2599
		2600	undef $Coro::AIO::WATCHER;
1288	IO::AIO::max_poll_time $TICK * 0.2;	2601	IO::AIO::max_poll_time $TICK * 0.1;
1289		2602	$AIO_POLL_WATCHER = Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	2603	reentrant => 0,
		2604	fd => IO::AIO::poll_fileno,
1291	poll => 'r',	2605	poll => 'r',
1292	prio => 5,	2606	prio => 6,
1293	data => WF_AUTOCANCEL,	2607	data => WF_AUTOCANCEL,
1294	cb => \&IO::AIO::poll_cb);	2608	cb => \&IO::AIO::poll_cb,
		2609	);
		2610	}
		2611
		2612	$WRITE_RUNTIME_WATCHER = Event->timer (
		2613	reentrant => 0,
		2614	data => WF_AUTOCANCEL,
		2615	parked => 1,
		2616	after => 1,
		2617	interval => 10,
		2618	prio => 6, # keep it lowest so it acts like a watchdog
		2619	cb => sub {
		2620	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
		2621
		2622	Coro::async_pool {
		2623	write_runtime
		2624	or warn "ERROR: unable to write runtime file: $!";
		2625	};
		2626	},
		2627	);
		2628
		2629	END { cf::emergency_save }
1295		2630
1296	1	2631	1
1297		2632

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