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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.100 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro;	13	use Coro 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
19	use IO::AIO 2.3;	23	use IO::AIO 2.32 ();
20	use YAML::Syck ();	24	use YAML::Syck ();
21	use Time::HiRes;	25	use Time::HiRes;
22		26
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
24		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
27		33
28	$Coro::main->prio (Coro::PRIO_MIN);	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		35
32	our %COMMAND = ();	36	our %COMMAND = ();
33	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
35		43
36	our @EVENT;	44	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
38		46
39	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	48	our $TICK_WATCHER;
41	our $NEXT_TICK;	49	our $NEXT_TICK;
		50	our $NOW;
42		51
43	our %CFG;	52	our %CFG;
44		53
45	our $UPTIME; $UPTIME ||= time;	54	our $UPTIME; $UPTIME ||= time;
		55	our $RUNTIME;
		56
		57	our %PLAYER; # all users
		58	our %MAP; # all maps
		59	our $LINK_MAP; # the special {link} map, which is always available
		60	our $RANDOM_MAPS = cf::localdir . "/random";
		61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		64
		65	# used to convert map paths into valid unix filenames by replacing / by ∕
		66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		67
		68	binmode STDOUT;
		69	binmode STDERR;
		70
		71	# read virtual server time, if available
		72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		73	open my $fh, "<", cf::localdir . "/runtime"
		74	or die "unable to read runtime file: $!";
		75	$RUNTIME = <$fh> + 0.;
		76	}
		77
		78	mkdir cf::localdir;
		79	mkdir cf::localdir . "/" . cf::playerdir;
		80	mkdir cf::localdir . "/" . cf::tmpdir;
		81	mkdir cf::localdir . "/" . cf::uniquedir;
		82	mkdir $RANDOM_MAPS;
		83
		84	our $EMERGENCY_POSITION;
46		85
47	#############################################################################	86	#############################################################################
48		87
49	=head2 GLOBAL VARIABLES	88	=head2 GLOBAL VARIABLES
50		89
51	=over 4	90	=over 4
52		91
53	=item $cf::UPTIME	92	=item $cf::UPTIME
54		93
55	The timestamp of the server start (so not actually an uptime).	94	The timestamp of the server start (so not actually an uptime).
		95
		96	=item $cf::RUNTIME
		97
		98	The time this server has run, starts at 0 and is increased by $cf::TICK on
		99	every server tick.
56		100
57	=item $cf::LIBDIR	101	=item $cf::LIBDIR
58		102
59	The perl library directory, where extensions and cf-specific modules can	103	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	104	be found. It will be added to C<@INC> automatically.
61		105
		106	=item $cf::NOW
		107
		108	The time of the last (current) server tick.
		109
62	=item $cf::TICK	110	=item $cf::TICK
63		111
64	The interval between server ticks, in seconds.	112	The interval between server ticks, in seconds.
65		113
66	=item %cf::CFG	114	=item %cf::CFG
67		115
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	116	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	117	from wherever your confdir points to.
		118
		119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		120
		121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		123	processing has been done. Call C<< ->wait >> on them to maximise the
		124	window of cpu time available, or simply to synchronise to the server tick.
70		125
71	=back	126	=back
72		127
73	=cut	128	=cut
74		129
75	BEGIN {	130	BEGIN {
76	*CORE::GLOBAL::warn = sub {	131	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	132	my $msg = join "", @_;
		133	utf8::encode $msg;
		134
78	$msg .= "\n"	135	$msg .= "\n"
79	unless $msg =~ /\n$/;	136	unless $msg =~ /\n$/;
80		137
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	138	LOG llevError, $msg;
83	};	139	};
84	}	140	}
85		141
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		161
106	$Event::DIED = sub {	162	$Event::DIED = sub {
107	warn "error in event callback: @_";	163	warn "error in event callback: @_";
108	};	164	};
109		165
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	166	=head2 UTILITY FUNCTIONS
115		167
116	=over 4	168	=over 4
117		169
		170	=item dumpval $ref
		171
118	=cut	172	=cut
		173
		174	sub dumpval {
		175	eval {
		176	local $SIG{__DIE__};
		177	my $d;
		178	if (1) {
		179	$d = new Data::Dumper([$_[0]], ["*var"]);
		180	$d->Terse(1);
		181	$d->Indent(2);
		182	$d->Quotekeys(0);
		183	$d->Useqq(1);
		184	#$d->Bless(...);
		185	$d->Seen($_[1]) if @_ > 1;
		186	$d = $d->Dump();
		187	}
		188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		189	$d
		190	} || "[unable to dump $_[0]: '$@']";
		191	}
119		192
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	193	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		194
122	=item $ref = cf::from_json $json	195	=item $ref = cf::from_json $json
123		196
…		…
137	=cut	210	=cut
138		211
139	sub to_json($) {	212	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	214	JSON::Syck::Dump $_[0]
		215	}
		216
		217	=item cf::lock_wait $string
		218
		219	Wait until the given lock is available. See cf::lock_acquire.
		220
		221	=item my $lock = cf::lock_acquire $string
		222
		223	Wait until the given lock is available and then acquires it and returns
		224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		225	for example when the coroutine gets canceled), the lock is automatically
		226	returned.
		227
		228	Lock names should begin with a unique identifier (for example, cf::map::find
		229	uses map_find and cf::map::load uses map_load).
		230
		231	=cut
		232
		233	our %LOCK;
		234
		235	sub lock_wait($) {
		236	my ($key) = @_;
		237
		238	# wait for lock, if any
		239	while ($LOCK{$key}) {
		240	push @{ $LOCK{$key} }, $Coro::current;
		241	Coro::schedule;
		242	}
		243	}
		244
		245	sub lock_acquire($) {
		246	my ($key) = @_;
		247
		248	# wait, to be sure we are not locked
		249	lock_wait $key;
		250
		251	$LOCK{$key} = [];
		252
		253	Coro::guard {
		254	# wake up all waiters, to be on the safe side
		255	$_->ready for @{ delete $LOCK{$key} };
		256	}
		257	}
		258
		259	sub freeze_mainloop {
		260	return unless $TICK_WATCHER->is_active;
		261
		262	my $guard = Coro::guard { $TICK_WATCHER->start };
		263	$TICK_WATCHER->stop;
		264	$guard
		265	}
		266
		267	=item cf::async { BLOCK }
		268
		269	Currently the same as Coro::async_pool, meaning you cannot use
		270	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		271	thing you are allowed to do is call C<prio> on it.
		272
		273	=cut
		274
		275	BEGIN { *async = \&Coro::async_pool }
		276
		277	=item cf::sync_job { BLOCK }
		278
		279	The design of crossfire+ requires that the main coro ($Coro::main) is
		280	always able to handle events or runnable, as crossfire+ is only partly
		281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		282
		283	If it must be done, put the blocking parts into C<sync_job>. This will run
		284	the given BLOCK in another coroutine while waiting for the result. The
		285	server will be frozen during this time, so the block should either finish
		286	fast or be very important.
		287
		288	=cut
		289
		290	sub sync_job(&) {
		291	my ($job) = @_;
		292
		293	if ($Coro::current == $Coro::main) {
		294	# this is the main coro, too bad, we have to block
		295	# till the operation succeeds, freezing the server :/
		296
		297	# TODO: use suspend/resume instead
		298	# (but this is cancel-safe)
		299	my $freeze_guard = freeze_mainloop;
		300
		301	my $busy = 1;
		302	my @res;
		303
		304	(async {
		305	@res = eval { $job->() };
		306	warn $@ if $@;
		307	undef $busy;
		308	})->prio (Coro::PRIO_MAX);
		309
		310	while ($busy) {
		311	Coro::cede or Event::one_event;
		312	}
		313
		314	wantarray ? @res : $res[0]
		315	} else {
		316	# we are in another coroutine, how wonderful, everything just works
		317
		318	$job->()
		319	}
		320	}
		321
		322	=item $coro = cf::async_ext { BLOCK }
		323
		324	Like async, but this coro is automatically being canceled when the
		325	extension calling this is being unloaded.
		326
		327	=cut
		328
		329	sub async_ext(&) {
		330	my $cb = shift;
		331
		332	my $coro = &Coro::async ($cb);
		333
		334	$coro->on_destroy (sub {
		335	delete $EXT_CORO{$coro+0};
		336	});
		337	$EXT_CORO{$coro+0} = $coro;
		338
		339	$coro
		340	}
		341
		342	sub write_runtime {
		343	return unless $TICK_WATCHER->is_active;
		344
		345	my $runtime = cf::localdir . "/runtime";
		346
		347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		348	or return;
		349
		350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		351	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		352	and return;
		353
		354	aio_fsync $fh
		355	and return;
		356
		357	close $fh
		358	or return;
		359
		360	aio_rename "$runtime~", $runtime
		361	and return;
		362
		363	1
142	}	364	}
143		365
144	=back	366	=back
145		367
146	=cut	368	=cut
…		…
454	=cut	676	=cut
455		677
456	#############################################################################	678	#############################################################################
457	# object support	679	# object support
458		680
		681	sub reattach {
		682	# basically do the same as instantiate, without calling instantiate
		683	my ($obj) = @_;
		684
		685	my $registry = $obj->registry;
		686
		687	@$registry = ();
		688
		689	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		690
		691	for my $name (keys %{ $obj->{_attachment} || {} }) {
		692	if (my $attach = $attachment{$name}) {
		693	for (@$attach) {
		694	my ($klass, @attach) = @$_;
		695	_attach $registry, $klass, @attach;
		696	}
		697	} else {
		698	warn "object uses attachment '$name' that is not available, postponing.\n";
		699	}
		700	}
		701	}
		702
459	cf::attachable->attach (	703	cf::attachable->attach (
460	prio => -1000000,	704	prio => -1000000,
461	on_instantiate => sub {	705	on_instantiate => sub {
462	my ($obj, $data) = @_;	706	my ($obj, $data) = @_;
463		707
…		…
467	my ($name, $args) = @$_;	711	my ($name, $args) = @$_;
468		712
469	$obj->attach ($name, %{$args || {} });	713	$obj->attach ($name, %{$args || {} });
470	}	714	}
471	},	715	},
472	on_reattach => sub {	716	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	717	on_clone => sub {
493	my ($src, $dst) = @_;	718	my ($src, $dst) = @_;
494		719
495	@{$dst->registry} = @{$src->registry};	720	@{$dst->registry} = @{$src->registry};
496		721
…		…
502	);	727	);
503		728
504	sub object_freezer_save {	729	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	730	my ($filename, $rdata, $objs) = @_;
506		731
		732	sync_job {
507	if (length $$rdata) {	733	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	734	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	735	$filename, length $$rdata, scalar @$objs;
510		736
511	if (open my $fh, ">:raw", "$filename~") {	737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	738	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		740	aio_fsync $fh;
519	close $fh;	741	close $fh;
		742
		743	if (@$objs) {
		744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		745	chmod SAVE_MODE, $fh;
		746	my $data = Storable::nfreeze { version => 1, objs => $objs };
		747	aio_write $fh, 0, (length $data), $data, 0;
		748	aio_fsync $fh;
		749	close $fh;
520	rename "$filename.pst~", "$filename.pst";	750	aio_rename "$filename.pst~", "$filename.pst";
		751	}
		752	} else {
		753	aio_unlink "$filename.pst";
		754	}
		755
		756	aio_rename "$filename~", $filename;
521	} else {	757	} else {
522	unlink "$filename.pst";	758	warn "FATAL: $filename~: $!\n";
523	}	759	}
524
525	rename "$filename~", $filename;
526	} else {	760	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	761	aio_unlink $filename;
531	unlink "$filename.pst";	762	aio_unlink "$filename.pst";
		763	}
532	}	764	}
533	}	765	}
534		766
535	sub object_freezer_as_string {	767	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	768	my ($rdata, $objs) = @_;
…		…
541	}	773	}
542		774
543	sub object_thawer_load {	775	sub object_thawer_load {
544	my ($filename) = @_;	776	my ($filename) = @_;
545		777
546	local $/;	778	my ($data, $av);
547		779
548	my $av;	780	(aio_load $filename, $data) >= 0
		781	or return;
549		782
550	#TODO: use sysread etc.	783	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	784	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	785	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	786	$av = eval { (Storable::thaw $av)->{objs} };
555	}	787	}
		788
		789	warn sprintf "loading %s (%d)\n",
		790	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	791	return ($data, $av);
557	}
558
559	()
560	}	792	}
561		793
562	#############################################################################	794	#############################################################################
563	# command handling &c	795	# command handling &c
564		796
…		…
588	=cut	820	=cut
589		821
590	sub register_extcmd {	822	sub register_extcmd {
591	my ($name, $cb) = @_;	823	my ($name, $cb) = @_;
592		824
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	825	$EXTCMD{$name} = $cb;
597	}	826	}
598		827
599	cf::player->attach (	828	cf::player->attach (
600	on_command => sub {	829	on_command => sub {
601	my ($pl, $name, $params) = @_;	830	my ($pl, $name, $params) = @_;
…		…
614		843
615	my $msg = eval { from_json $buf };	844	my $msg = eval { from_json $buf };
616		845
617	if (ref $msg) {	846	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	848	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	849	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	850	}
622	}	851	}
623	} else {	852	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		855
627	cf::override;	856	cf::override;
628	},	857	},
629	);	858	);
630		859
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	860	sub load_extension {
638	my ($path) = @_;	861	my ($path) = @_;
639		862
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	864	my $base = $1;
642	my $pkg = $1;	865	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	866	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	867	$pkg = "ext::$pkg";
645		868
646	warn "loading '$path' into '$pkg'\n";	869	warn "... loading '$path' into '$pkg'\n";
647		870
648	open my $fh, "<:utf8", $path	871	open my $fh, "<:utf8", $path
649	or die "$path: $!";	872	or die "$path: $!";
650		873
651	my $source =	874	my $source =
652	"package $pkg; use strict; use utf8;\n"	875	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"	876	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })	877	. (do { local $/; <$fh> })
655	. "\n};\n1";	878	. "\n};\n1";
656		879
657	eval $source	880	unless (eval $source) {
658	or die $@ ? "$path: $@\n"	881	my $msg = $@ ? "$path: $@\n"
659	: "extension disabled.\n";	882	: "extension disabled.\n";
660		883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
661	push @exts, $pkg;	884	warn $@;
662	$ext_pkg{$base} = $pkg;	885	warn "mandatory extension failed to load, exiting.\n";
663		886	exit 1;
664	# no strict 'refs';	887	}
665	# @{"$pkg\::ISA"} = ext::;	888	die $@;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	889	}
680		890
681	# remove commands	891	push @EXTS, $pkg;
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}
690	}
691
692	# remove extcmds
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	892	}
706		893
707	sub load_extensions {	894	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	895	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	896	next unless -r $ext;
…		…
713	} or warn "$ext not loaded: $@";	900	} or warn "$ext not loaded: $@";
714	}	901	}
715	}	902	}
716		903
717	#############################################################################	904	#############################################################################
718	# load/save/clean perl data associated with a map
719		905
720	*cf::mapsupport::on_clean = sub {	906	=head2 CORE EXTENSIONS
		907
		908	Functions and methods that extend core crossfire objects.
		909
		910	=cut
		911
		912	package cf::player;
		913
		914	use Coro::AIO;
		915
		916	=head3 cf::player
		917
		918	=over 4
		919
		920	=item cf::player::find $login
		921
		922	Returns the given player object, loading it if necessary (might block).
		923
		924	=cut
		925
		926	sub playerdir($) {
		927	cf::localdir
		928	. "/"
		929	. cf::playerdir
		930	. "/"
		931	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		932	}
		933
		934	sub path($) {
		935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		936
		937	(playerdir $login) . "/$login.pl"
		938	}
		939
		940	sub find_active($) {
		941	$cf::PLAYER{$_[0]}
		942	and $cf::PLAYER{$_[0]}->active
		943	and $cf::PLAYER{$_[0]}
		944	}
		945
		946	sub exists($) {
		947	my ($login) = @_;
		948
		949	$cf::PLAYER{$login}
		950	or cf::sync_job { !aio_stat $login }
		951	}
		952
		953	sub find($) {
		954	return $cf::PLAYER{$_[0]} || do {
		955	my $login = $_[0];
		956
		957	my $guard = cf::lock_acquire "user_find:$login";
		958
		959	$cf::PLAYER{$_[0]} || do {
		960	my $pl = load_pl path $login
		961	or return;
		962	$cf::PLAYER{$login} = $pl
		963	}
		964	}
		965	}
		966
		967	sub save($) {
		968	my ($pl) = @_;
		969
		970	return if $pl->{deny_save};
		971
		972	my $path = path $pl;
		973	my $guard = cf::lock_acquire "user_save:$path";
		974
		975	return if $pl->{deny_save};
		976
		977	aio_mkdir playerdir $pl, 0770;
		978	$pl->{last_save} = $cf::RUNTIME;
		979
		980	$pl->save_pl ($path);
		981	Coro::cede;
		982	}
		983
		984	sub new($) {
		985	my ($login) = @_;
		986
		987	my $self = create;
		988
		989	$self->ob->name ($login);
		990	$self->{deny_save} = 1;
		991
		992	$cf::PLAYER{$login} = $self;
		993
		994	$self
		995	}
		996
		997	=item $pl->quit_character
		998
		999	Nukes the player without looking back. If logged in, the connection will
		1000	be destroyed. May block for a long time.
		1001
		1002	=cut
		1003
		1004	sub quit_character {
		1005	my ($pl) = @_;
		1006
		1007	$pl->{deny_save} = 1;
		1008	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1009
		1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1011	$pl->deactivate;
		1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1013	$pl->ns->destroy if $pl->ns;
		1014
		1015	my $path = playerdir $pl;
		1016	my $temp = "$path~$cf::RUNTIME~deleting~";
		1017	aio_rename $path, $temp;
		1018	delete $cf::PLAYER{$pl->ob->name};
		1019	$pl->destroy;
		1020	IO::AIO::aio_rmtree $temp;
		1021	}
		1022
		1023	=item cf::player::list_logins
		1024
		1025	Returns am arrayref of all valid playernames in the system, can take a
		1026	while and may block, so not sync_job-capable, ever.
		1027
		1028	=cut
		1029
		1030	sub list_logins {
		1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1032	or return [];
		1033
		1034	my @logins;
		1035
		1036	for my $login (@$dirs) {
		1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1038	aio_read $fh, 0, 512, my $buf, 0 or next;
		1039	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1040
		1041	utf8::decode $login;
		1042	push @logins, $login;
		1043	}
		1044
		1045	\@logins
		1046	}
		1047
		1048	=item $player->maps
		1049
		1050	Returns an arrayref of map paths that are private for this
		1051	player. May block.
		1052
		1053	=cut
		1054
		1055	sub maps($) {
		1056	my ($pl) = @_;
		1057
		1058	my $files = aio_readdir playerdir $pl
		1059	or return;
		1060
		1061	my @paths;
		1062
		1063	for (@$files) {
		1064	utf8::decode $_;
		1065	next if /\.(?:pl|pst)$/;
		1066	next unless /^$PATH_SEP/o;
		1067
		1068	s/\.map$//;
		1069	push @paths, "~" . $pl->ob->name . "/" . $_;
		1070	}
		1071
		1072	\@paths
		1073	}
		1074
		1075	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1076
		1077	Sends an ext reply to the player.
		1078
		1079	=cut
		1080
		1081	sub ext_reply($$$%) {
		1082	my ($self, $id, %msg) = @_;
		1083
		1084	$msg{msgid} = $id;
		1085
		1086	$self->send ("ext " . cf::to_json \%msg);
		1087	}
		1088
		1089	package cf;
		1090
		1091	=back
		1092
		1093
		1094	=head3 cf::map
		1095
		1096	=over 4
		1097
		1098	=cut
		1099
		1100	package cf::map;
		1101
		1102	use Fcntl;
		1103	use Coro::AIO;
		1104
		1105	use overload
		1106	'""' => \&as_string;
		1107
		1108	our $MAX_RESET = 3600;
		1109	our $DEFAULT_RESET = 3000;
		1110
		1111	sub generate_random_map {
		1112	my ($self, $rmp) = @_;
		1113
		1114	# mit "rum" bekleckern, nicht
		1115	$self->_create_random_map (
		1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1119	$rmp->{exit_on_final_map},
		1120	$rmp->{xsize}, $rmp->{ysize},
		1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1123	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1124	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1126	(cf::region::find $rmp->{region}), $rmp->{custom}
		1127	)
		1128	}
		1129
		1130	sub register {
		1131	my (undef, $regex) = @_;
		1132	my $pkg = caller;
		1133
		1134	no strict;
		1135	push @{"$pkg\::ISA"}, __PACKAGE__;
		1136
		1137	$EXT_MAP{$pkg} = qr<$regex>;
		1138	}
		1139
		1140	# also paths starting with '/'
		1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1142
		1143	sub normalise {
		1144	my ($path, $base) = @_;
		1145
		1146	# map plan:
		1147	#
		1148	# /! non-realised random map exit (special hack!)
		1149	# {... are special paths that are not being touched
		1150	# ?xxx/... are special absolute paths
		1151	# ?random/... random maps
		1152	# /... normal maps
		1153	# ~user/... per-player map of a specific user
		1154
		1155	$path =~ s/$PATH_SEP/\//go;
		1156
		1157	# treat it as relative path if it starts with
		1158	# something that looks reasonable
		1159	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1160	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1161
		1162	$base =~ s{[^/]+/?$}{};
		1163	$path = "$base/$path";
		1164	}
		1165
		1166	for ($path) {
		1167	redo if s{//}{/};
		1168	redo if s{/\.?/}{/};
		1169	redo if s{/[^/]+/\.\./}{/};
		1170	}
		1171
		1172	$path
		1173	}
		1174
		1175	sub new_from_path {
		1176	my (undef, $path, $base) = @_;
		1177
		1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1179
		1180	$path = normalise $path, $base;
		1181
		1182	for my $pkg (keys %EXT_MAP) {
		1183	if ($path =~ $EXT_MAP{$pkg}) {
		1184	my $self = bless cf::map::new, $pkg;
		1185	$self->{path} = $path; $self->path ($path);
		1186	$self->init; # pass $1 etc.
		1187	return $self;
		1188	}
		1189	}
		1190
		1191	Carp::carp "unable to resolve path '$path'.";
		1192	()
		1193	}
		1194
		1195	sub init {
		1196	my ($self) = @_;
		1197
		1198	$self
		1199	}
		1200
		1201	sub as_string {
		1202	my ($self) = @_;
		1203
		1204	"$self->{path}"
		1205	}
		1206
		1207	# the displayed name, this is a one way mapping
		1208	sub visible_name {
		1209	&as_string
		1210	}
		1211
		1212	# the original (read-only) location
		1213	sub load_path {
		1214	my ($self) = @_;
		1215
		1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1217	}
		1218
		1219	# the temporary/swap location
		1220	sub save_path {
		1221	my ($self) = @_;
		1222
		1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1225	}
		1226
		1227	# the unique path, undef == no special unique path
		1228	sub uniq_path {
		1229	my ($self) = @_;
		1230
		1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1233	}
		1234
		1235	# and all this just because we cannot iterate over
		1236	# all maps in C++...
		1237	sub change_all_map_light {
		1238	my ($change) = @_;
		1239
		1240	$_->change_map_light ($change)
		1241	for grep $_->outdoor, values %cf::MAP;
		1242	}
		1243
		1244	sub unlink_save {
		1245	my ($self) = @_;
		1246
		1247	utf8::encode (my $save = $self->save_path);
		1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		1250	}
		1251
		1252	sub load_header_from($) {
		1253	my ($self, $path) = @_;
		1254
		1255	utf8::encode $path;
		1256	aio_open $path, O_RDONLY, 0
		1257	or return;
		1258
		1259	$self->_load_header ($path)
		1260	or return;
		1261
		1262	$self->{load_path} = $path;
		1263
		1264	1
		1265	}
		1266
		1267	sub load_orig {
		1268	my ($self) = @_;
		1269
		1270	$self->load_header_from ($self->load_path)
		1271	}
		1272
		1273	sub load_temp {
		1274	my ($self) = @_;
		1275
		1276	$self->load_header_from ($self->save_path)
		1277	}
		1278
		1279	sub load_header {
		1280	my ($self) = @_;
		1281
		1282	if ($self->load_temp) {
		1283	$self->last_access ((delete $self->{last_access})
		1284	|| $cf::RUNTIME); #d#
		1285	# safety
		1286	$self->{instantiate_time} = $cf::RUNTIME
		1287	if $self->{instantiate_time} > $cf::RUNTIME;
		1288	} else {
		1289	$self->load_orig
		1290	or return;
		1291
		1292	$self->{load_original} = 1;
		1293	$self->{instantiate_time} = $cf::RUNTIME;
		1294	$self->last_access ($cf::RUNTIME);
		1295	$self->instantiate;
		1296	}
		1297
		1298	1
		1299	}
		1300
		1301	sub find;
		1302	sub find {
		1303	my ($path, $origin) = @_;
		1304
		1305	$path = normalise $path, $origin && $origin->path;
		1306
		1307	cf::lock_wait "map_find:$path";
		1308
		1309	$cf::MAP{$path} || do {
		1310	my $guard = cf::lock_acquire "map_find:$path";
		1311	my $map = new_from_path cf::map $path
		1312	or return;
		1313
		1314	$map->{last_save} = $cf::RUNTIME;
		1315
		1316	$map->load_header
		1317	or return;
		1318
		1319	if ($map->should_reset) {
		1320	$map->reset;
		1321	undef $guard;
		1322	$map = find $path
		1323	or return;
		1324	}
		1325
		1326	$cf::MAP{$path} = $map
		1327	}
		1328	}
		1329
		1330	sub load {
		1331	my ($self) = @_;
		1332
		1333	my $path = $self->{path};
		1334	my $guard = cf::lock_acquire "map_load:$path";
		1335
		1336	return if $self->in_memory != cf::MAP_SWAPPED;
		1337
		1338	$self->in_memory (cf::MAP_LOADING);
		1339
		1340	$self->alloc;
		1341	$self->_load_objects ($self->{load_path}, 1)
		1342	or return;
		1343
		1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1345	if delete $self->{load_original};
		1346
		1347	if (my $uniq = $self->uniq_path) {
		1348	utf8::encode $uniq;
		1349	if (aio_open $uniq, O_RDONLY, 0) {
		1350	$self->clear_unique_items;
		1351	$self->_load_objects ($uniq, 0);
		1352	}
		1353	}
		1354
		1355	Coro::cede;
		1356
		1357	# now do the right thing for maps
		1358	$self->link_multipart_objects;
		1359
		1360	unless ($self->{deny_activate}) {
		1361	$self->decay_objects;
		1362	$self->fix_auto_apply;
		1363	$self->update_buttons;
		1364	Coro::cede;
		1365	$self->set_darkness_map;
		1366	$self->difficulty ($self->estimate_difficulty)
		1367	unless $self->difficulty;
		1368	Coro::cede;
		1369	$self->activate;
		1370	}
		1371
		1372	$self->in_memory (cf::MAP_IN_MEMORY);
		1373	}
		1374
		1375	sub customise_for {
		1376	my ($self, $ob) = @_;
		1377
		1378	return find "~" . $ob->name . "/" . $self->{path}
		1379	if $self->per_player;
		1380
		1381	$self
		1382	}
		1383
		1384	# find and load all maps in the 3x3 area around a map
		1385	sub load_diag {
721	my ($map) = @_;	1386	my ($map) = @_;
722		1387
723	my $path = $map->tmpname;	1388	my @diag; # diagonal neighbours
724	defined $path or return;
725		1389
726	unlink "$path.pst";	1390	for (0 .. 3) {
		1391	my $neigh = $map->tile_path ($_)
		1392	or next;
		1393	$neigh = find $neigh, $map
		1394	or next;
		1395	$neigh->load;
		1396
		1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1399	}
		1400
		1401	for (@diag) {
		1402	my $neigh = find @$_
		1403	or next;
		1404	$neigh->load;
		1405	}
		1406	}
		1407
		1408	sub find_sync {
		1409	my ($path, $origin) = @_;
		1410
		1411	cf::sync_job { find $path, $origin }
		1412	}
		1413
		1414	sub do_load_sync {
		1415	my ($map) = @_;
		1416
		1417	cf::sync_job { $map->load };
		1418	}
		1419
		1420	our %MAP_PREFETCH;
		1421	our $MAP_PREFETCHER = Coro::async {
		1422	while () {
		1423	for my $path (keys %MAP_PREFETCH) {
		1424	my $map = find $path
		1425	or next;
		1426	$map->load;
		1427
		1428	delete $MAP_PREFETCH{$path};
		1429	}
		1430	Coro::schedule;
		1431	}
727	};	1432	};
728		1433
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1434	sub find_async {
		1435	my ($path, $origin) = @_;
730		1436
731	#############################################################################	1437	$path = normalise $path, $origin && $origin->{path};
732	# load/save perl data associated with player->ob objects
733		1438
734	sub all_objects(@) {	1439	if (my $map = $cf::MAP{$path}) {
735	@_, map all_objects ($_->inv), @_	1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
736	}
737
738	# TODO: compatibility cruft, remove when no longer needed
739	cf::player->attach (
740	on_load => sub {
741	my ($pl, $path) = @_;
742
743	for my $o (all_objects $pl->ob) {
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {
745	$o->set_ob_key_value ("_perl_data");
746
747	%$o = %{ Storable::thaw pack "H*", $value };
748	}
749	}
750	},	1441	}
751	);
752		1442
753	#############################################################################	1443	$MAP_PREFETCH{$path} = 0;
		1444	$MAP_PREFETCHER->ready;
754		1445
755	=head2 CORE EXTENSIONS	1446	()
		1447	}
756		1448
757	Functions and methods that extend core crossfire objects.	1449	sub save {
		1450	my ($self) = @_;
758		1451
759	=head3 cf::player	1452	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1453
		1454	$self->{last_save} = $cf::RUNTIME;
		1455
		1456	return unless $self->dirty;
		1457
		1458	my $save = $self->save_path; utf8::encode $save;
		1459	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1460
		1461	$self->{load_path} = $save;
		1462
		1463	return if $self->{deny_save};
		1464
		1465	local $self->{last_access} = $self->last_access;#d#
		1466
		1467	cf::async {
		1468	$_->contr->save for $self->players;
		1469	};
		1470
		1471	if ($uniq) {
		1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1474	} else {
		1475	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1476	}
		1477	}
		1478
		1479	sub swap_out {
		1480	my ($self) = @_;
		1481
		1482	# save first because save cedes
		1483	$self->save;
		1484
		1485	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1486
		1487	return if $self->players;
		1488	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1489	return if $self->{deny_save};
		1490
		1491	$self->clear;
		1492	$self->in_memory (cf::MAP_SWAPPED);
		1493	}
		1494
		1495	sub reset_at {
		1496	my ($self) = @_;
		1497
		1498	# TODO: safety, remove and allow resettable per-player maps
		1499	return 1e99 if $self->isa ("ext::map_per_player");
		1500	return 1e99 if $self->{deny_reset};
		1501
		1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1504
		1505	$time + $to
		1506	}
		1507
		1508	sub should_reset {
		1509	my ($self) = @_;
		1510
		1511	$self->reset_at <= $cf::RUNTIME
		1512	}
		1513
		1514	sub rename {
		1515	my ($self, $new_path) = @_;
		1516
		1517	normalise $new_path;
		1518
		1519	$self->unlink_save;
		1520
		1521	delete $cf::MAP{$self->path};
		1522	$self->{path} = $new_path; $self->path ($self->{path});
		1523	$cf::MAP{$self->path} = $self;
		1524
		1525	$self->save;
		1526	}
		1527
		1528	sub reset {
		1529	my ($self) = @_;
		1530
		1531	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1532
		1533	return if $self->players;
		1534	return if $self->isa ("ext::map_per_player");#d#
		1535
		1536	warn "resetting map ", $self->path;#d#
		1537
		1538	delete $cf::MAP{$self->path};
		1539
		1540	$self->in_memory (cf::MAP_SWAPPED);
		1541	$self->clear;
		1542
		1543	$_->clear_links_to ($self) for values %cf::MAP;
		1544
		1545	$self->unlink_save;
		1546	$self->destroy;
		1547	}
		1548
		1549	my $nuke_counter = "aaaa";
		1550
		1551	sub nuke {
		1552	my ($self) = @_;
		1553
		1554	$self->{deny_save} = 1;
		1555	$self->reset_timeout (1);
		1556	$self->rename ("{nuke}/" . ($nuke_counter++));
		1557	$self->reset; # polite request, might not happen
		1558	}
		1559
		1560	=item cf::map::unique_maps
		1561
		1562	Returns an arrayref of paths of all shared maps that have
		1563	instantiated unique items. May block.
		1564
		1565	=cut
		1566
		1567	sub unique_maps() {
		1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1569	or return;
		1570
		1571	my @paths;
		1572
		1573	for (@$files) {
		1574	utf8::decode $_;
		1575	next if /\.pst$/;
		1576	next unless /^$PATH_SEP/o;
		1577
		1578	s/\.map$//;
		1579	push @paths, $_;
		1580	}
		1581
		1582	\@paths
		1583	}
		1584
		1585	package cf;
		1586
		1587	=back
		1588
		1589	=head3 cf::object
		1590
		1591	=cut
		1592
		1593	package cf::object;
760		1594
761	=over 4	1595	=over 4
762		1596
763	=item cf::player::exists $login	1597	=item $ob->inv_recursive
764		1598
765	Returns true when the given account exists.	1599	Returns the inventory of the object _and_ their inventories, recursively.
766		1600
767	=cut	1601	=cut
768		1602
769	sub cf::player::exists($) {	1603	sub inv_recursive_;
770	cf::player::find $_[0]	1604	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1605	map { $_, inv_recursive_ $_->inv } @_
772	}	1606	}
773		1607
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1608	sub inv_recursive {
775		1609	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	1610	}
		1611
		1612	package cf;
787		1613
788	=back	1614	=back
789		1615
790	=head3 cf::object::player	1616	=head3 cf::object::player
791		1617
…		…
829	(ref $cf::CFG{"may_$access"}	1655	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1656	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1657	: $cf::CFG{"may_$access"})
832	}	1658	}
833		1659
		1660	=item $player_object->enter_link
		1661
		1662	Freezes the player and moves him/her to a special map (C<{link}>).
		1663
		1664	The player should be reasonably safe there for short amounts of time. You
		1665	I<MUST> call C<leave_link> as soon as possible, though.
		1666
		1667	Will never block.
		1668
		1669	=item $player_object->leave_link ($map, $x, $y)
		1670
		1671	Moves the player out of the special C<{link}> map onto the specified
		1672	map. If the map is not valid (or omitted), the player will be moved back
		1673	to the location he/she was before the call to C<enter_link>, or, if that
		1674	fails, to the emergency map position.
		1675
		1676	Might block.
		1677
		1678	=cut
		1679
		1680	sub link_map {
		1681	unless ($LINK_MAP) {
		1682	$LINK_MAP = cf::map::find "{link}"
		1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1684	$LINK_MAP->load;
		1685	}
		1686
		1687	$LINK_MAP
		1688	}
		1689
		1690	sub cf::object::player::enter_link {
		1691	my ($self) = @_;
		1692
		1693	$self->deactivate_recursive;
		1694
		1695	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1696
		1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1698	if $self->map;
		1699
		1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1701	}
		1702
		1703	sub cf::object::player::leave_link {
		1704	my ($self, $map, $x, $y) = @_;
		1705
		1706	my $link_pos = delete $self->{_link_pos};
		1707
		1708	unless ($map) {
		1709	# restore original map position
		1710	($map, $x, $y) = @{ $link_pos || [] };
		1711	$map = cf::map::find $map;
		1712
		1713	unless ($map) {
		1714	($map, $x, $y) = @$EMERGENCY_POSITION;
		1715	$map = cf::map::find $map
		1716	or die "FATAL: cannot load emergency map\n";
		1717	}
		1718	}
		1719
		1720	($x, $y) = (-1, -1)
		1721	unless (defined $x) && (defined $y);
		1722
		1723	# use -1 or undef as default coordinates, not 0, 0
		1724	($x, $y) = ($map->enter_x, $map->enter_y)
		1725	if $x <=0 && $y <= 0;
		1726
		1727	$map->load;
		1728	$map->load_diag;
		1729
		1730	return unless $self->contr->active;
		1731	$self->activate_recursive;
		1732	$self->enter_map ($map, $x, $y);
		1733	}
		1734
		1735	cf::player->attach (
		1736	on_logout => sub {
		1737	my ($pl) = @_;
		1738
		1739	# abort map switching before logout
		1740	if ($pl->ob->{_link_pos}) {
		1741	cf::sync_job {
		1742	$pl->ob->leave_link
		1743	};
		1744	}
		1745	},
		1746	on_login => sub {
		1747	my ($pl) = @_;
		1748
		1749	# try to abort aborted map switching on player login :)
		1750	# should happen only on crashes
		1751	if ($pl->ob->{_link_pos}) {
		1752	$pl->ob->enter_link;
		1753	(async {
		1754	# we need this sleep as the login has a concurrent enter_exit running
		1755	# and this sleep increases chances of the player not ending up in scorn
		1756	$pl->ob->reply (undef,
		1757	"There was an internal problem at your last logout, "
		1758	. "the server will try to bring you to your intended destination in a second.",
		1759	cf::NDI_RED);
		1760	Coro::Timer::sleep 1;
		1761	$pl->ob->leave_link;
		1762	})->prio (2);
		1763	}
		1764	},
		1765	);
		1766
		1767	=item $player_object->goto ($path, $x, $y)
		1768
		1769	=cut
		1770
		1771	sub cf::object::player::goto {
		1772	my ($self, $path, $x, $y) = @_;
		1773
		1774	$self->enter_link;
		1775
		1776	(async {
		1777	my $map = cf::map::find $path;
		1778	$map = $map->customise_for ($self) if $map;
		1779
		1780	# warn "entering ", $map->path, " at ($x, $y)\n"
		1781	# if $map;
		1782
		1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1784
		1785	$self->leave_link ($map, $x, $y);
		1786	})->prio (1);
		1787	}
		1788
		1789	=item $player_object->enter_exit ($exit_object)
		1790
		1791	=cut
		1792
		1793	sub parse_random_map_params {
		1794	my ($spec) = @_;
		1795
		1796	my $rmp = { # defaults
		1797	xsize => 10,
		1798	ysize => 10,
		1799	};
		1800
		1801	for (split /\n/, $spec) {
		1802	my ($k, $v) = split /\s+/, $_, 2;
		1803
		1804	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1805	}
		1806
		1807	$rmp
		1808	}
		1809
		1810	sub prepare_random_map {
		1811	my ($exit) = @_;
		1812
		1813	# all this does is basically replace the /! path by
		1814	# a new random map path (?random/...) with a seed
		1815	# that depends on the exit object
		1816
		1817	my $rmp = parse_random_map_params $exit->msg;
		1818
		1819	if ($exit->map) {
		1820	$rmp->{region} = $exit->map->region_name;
		1821	$rmp->{origin_map} = $exit->map->path;
		1822	$rmp->{origin_x} = $exit->x;
		1823	$rmp->{origin_y} = $exit->y;
		1824	}
		1825
		1826	$rmp->{random_seed} ||= $exit->random_seed;
		1827
		1828	my $data = cf::to_json $rmp;
		1829	my $md5 = Digest::MD5::md5_hex $data;
		1830
		1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1832	aio_write $fh, 0, (length $data), $data, 0;
		1833
		1834	$exit->slaying ("?random/$md5");
		1835	$exit->msg (undef);
		1836	}
		1837	}
		1838
		1839	sub cf::object::player::enter_exit {
		1840	my ($self, $exit) = @_;
		1841
		1842	return unless $self->type == cf::PLAYER;
		1843
		1844	$self->enter_link;
		1845
		1846	(async {
		1847	$self->deactivate_recursive; # just to be sure
		1848	unless (eval {
		1849	prepare_random_map $exit
		1850	if $exit->slaying eq "/!";
		1851
		1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1854
		1855	1;
		1856	}) {
		1857	$self->message ("Something went wrong deep within the crossfire server. "
		1858	. "I'll try to bring you back to the map you were before. "
		1859	. "Please report this to the dungeon master!",
		1860	cf::NDI_UNIQUE | cf::NDI_RED);
		1861
		1862	warn "ERROR in enter_exit: $@";
		1863	$self->leave_link;
		1864	}
		1865	})->prio (1);
		1866	}
		1867
834	=head3 cf::client	1868	=head3 cf::client
835		1869
836	=over 4	1870	=over 4
837		1871
838	=item $client->send_drawinfo ($text, $flags)	1872	=item $client->send_drawinfo ($text, $flags)
…		…
881	on_reply => sub {	1915	on_reply => sub {
882	my ($ns, $msg) = @_;	1916	my ($ns, $msg) = @_;
883		1917
884	# this weird shuffling is so that direct followup queries	1918	# this weird shuffling is so that direct followup queries
885	# get handled first	1919	# get handled first
886	my $queue = delete $ns->{query_queue};	1920	my $queue = delete $ns->{query_queue}
		1921	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		1922
888	(shift @$queue)->[1]->($msg);	1923	(shift @$queue)->[1]->($msg);
889		1924
890	push @{ $ns->{query_queue} }, @$queue;	1925	push @{ $ns->{query_queue} }, @$queue;
891		1926
…		…
897	}	1932	}
898	}	1933	}
899	},	1934	},
900	);	1935	);
901		1936
902	=item $client->coro (\&cb)	1937	=item $client->async (\&cb)
903		1938
904	Create a new coroutine, running the specified callback. The coroutine will	1939	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	1940	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	1941	or loss of connection).
907		1942
908	=cut	1943	=cut
909		1944
910	sub cf::client::coro {	1945	sub cf::client::async {
911	my ($self, $cb) = @_;	1946	my ($self, $cb) = @_;
912		1947
913	my $coro; $coro = async {	1948	my $coro = &Coro::async ($cb);
914	eval {	1949
915	$cb->();	1950	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	1951	delete $self->{_coro}{$coro+0};
919	};	1952	});
920		1953
921	$self->{_coro}{$coro+0} = $coro;	1954	$self->{_coro}{$coro+0} = $coro;
		1955
		1956	$coro
922	}	1957	}
923		1958
924	cf::client->attach (	1959	cf::client->attach (
925	on_destroy => sub {	1960	on_destroy => sub {
926	my ($ns) = @_;	1961	my ($ns) = @_;
…		…
1090		2125
1091	{	2126	{
1092	my $path = cf::localdir . "/database.pst";	2127	my $path = cf::localdir . "/database.pst";
1093		2128
1094	sub db_load() {	2129	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };	2130	$DB = stat $path ? Storable::retrieve $path : { };
1097	}	2131	}
1098		2132
1099	my $pid;	2133	my $pid;
1100		2134
1101	sub db_save() {	2135	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;	2136	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {	2137	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;	2138	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";	2139	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;	2140	rename "$path~", $path;
…		…
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2188	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2189	or return;
1157		2190
1158	local $/;	2191	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2192	*CFG = YAML::Syck::Load <$fh>;
		2193
		2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2195
		2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2198
		2199	if (exists $CFG{mlockall}) {
		2200	eval {
		2201	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2202	and die "WARNING: m(un)lockall failed: $!\n";
		2203	};
		2204	warn $@ if $@;
		2205	}
1160	}	2206	}
1161		2207
1162	sub main {	2208	sub main {
		2209	# we must not ever block the main coroutine
		2210	local $Coro::idle = sub {
		2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2212	async { Event::one_event };
		2213	};
		2214
1163	cfg_load;	2215	cfg_load;
1164	db_load;	2216	db_load;
1165	load_extensions;	2217	load_extensions;
1166	Event::loop;	2218	Event::loop;
1167	}	2219	}
1168		2220
1169	#############################################################################	2221	#############################################################################
1170	# initialisation	2222	# initialisation and cleanup
1171		2223
		2224	# install some emergency cleanup handlers
		2225	BEGIN {
		2226	for my $signal (qw(INT HUP TERM)) {
		2227	Event->signal (
		2228	data => WF_AUTOCANCEL,
		2229	signal => $signal,
		2230	cb => sub {
		2231	cf::cleanup "SIG$signal";
		2232	},
		2233	);
		2234	}
		2235	}
		2236
		2237	sub emergency_save() {
		2238	my $freeze_guard = cf::freeze_mainloop;
		2239
		2240	warn "enter emergency perl save\n";
		2241
		2242	cf::sync_job {
		2243	# use a peculiar iteration method to avoid tripping on perl
		2244	# refcount bugs in for. also avoids problems with players
		2245	# and maps saved/destroyed asynchronously.
		2246	warn "begin emergency player save\n";
		2247	for my $login (keys %cf::PLAYER) {
		2248	my $pl = $cf::PLAYER{$login} or next;
		2249	$pl->valid or next;
		2250	$pl->save;
		2251	}
		2252	warn "end emergency player save\n";
		2253
		2254	warn "begin emergency map save\n";
		2255	for my $path (keys %cf::MAP) {
		2256	my $map = $cf::MAP{$path} or next;
		2257	$map->valid or next;
		2258	$map->save;
		2259	}
		2260	warn "end emergency map save\n";
		2261	};
		2262
		2263	warn "leave emergency perl save\n";
		2264	}
		2265
1172	sub _perl_reload(&) {	2266	sub reload() {
1173	my ($msg) = @_;	2267	# can/must only be called in main
		2268	if ($Coro::current != $Coro::main) {
		2269	warn "can only reload from main coroutine\n";
		2270	return;
		2271	}
1174		2272
1175	$msg->("reloading...");	2273	warn "reloading...";
		2274
		2275	warn "freezing server";
		2276	my $guard = freeze_mainloop;
		2277	cf::emergency_save;
		2278
		2279	warn "sync database to disk";
		2280	cf::db_sync;
		2281	IO::AIO::flush;
1176		2282
1177	eval {	2283	eval {
		2284	# if anything goes wrong in here, we should simply crash as we already saved
		2285
1178	# cancel all watchers	2286	warn "cancel all watchers";
1179	for (Event::all_watchers) {	2287	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2288	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2289	}
1182		2290
		2291	warn "cancel all extension coros";
		2292	$_->cancel for values %EXT_CORO;
		2293	%EXT_CORO = ();
		2294
		2295	warn "remove commands";
		2296	%COMMAND = ();
		2297
		2298	warn "remove ext commands";
		2299	%EXTCMD = ();
		2300
1183	# unload all extensions	2301	warn "unload/nuke all extensions";
1184	for (@exts) {	2302	for my $pkg (@EXTS) {
1185	$msg->("unloading <$_>");	2303	warn "... unloading $pkg";
1186	unload_extension $_;	2304
		2305	if (my $cb = $pkg->can ("unload")) {
		2306	eval {
		2307	$cb->($pkg);
		2308	1
		2309	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2310	}
1188		2311
		2312	warn "... nuking $pkg";
		2313	Symbol::delete_package $pkg;
		2314	}
		2315
1189	# unload all modules loaded from $LIBDIR	2316	warn "unload all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2317	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2319
1193	$msg->("removing <$k>");	2320	warn "removing <$k>";
1194	delete $INC{$k};	2321	delete $INC{$k};
1195		2322
1196	$k =~ s/\.pm$//;	2323	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2324	$k =~ s/\//::/g;
1198		2325
…		…
1201	}	2328	}
1202		2329
1203	Symbol::delete_package $k;	2330	Symbol::delete_package $k;
1204	}	2331	}
1205		2332
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2333	warn "get rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2334	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2336
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2337	warn "unload cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2338	delete $INC{"cf.pm"};
1218		2339
1219	# don't, removes xs symbols, too,	2340	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2341	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2342	#Symbol::delete_package __PACKAGE__;
1222		2343
1223	# reload cf.pm
1224	$msg->("reloading cf.pm");	2344	warn "reloading cf.pm";
1225	require cf;	2345	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2347
1228
1229	# load config and database again	2348	warn "load config and database again";
1230	cf::cfg_load;	2349	cf::cfg_load;
1231	cf::db_load;	2350	cf::db_load;
1232		2351
1233	# load extensions	2352	warn "load extensions";
1234	$msg->("load extensions");
1235	cf::load_extensions;	2353	cf::load_extensions;
1236		2354
1237	# reattach attachments to objects	2355	warn "reattach attachments to objects/players";
1238	$msg->("reattach");
1239	_global_reattach;	2356	_global_reattach;
		2357	warn "reattach attachments to maps";
		2358	reattach $_ for values %MAP;
1240	};	2359	};
1241	$msg->($@) if $@;
1242		2360
1243	$msg->("reloaded");	2361	if ($@) {
		2362	warn $@;
		2363	warn "error while reloading, exiting.";
		2364	exit 1;
		2365	}
		2366
		2367	warn "reloaded";
1244	};	2368	};
1245		2369
1246	sub perl_reload() {
1247	_perl_reload {
1248	warn $_[0];
1249	print "$_[0]\n";
1250	};
1251	}
1252
1253	register "<global>", __PACKAGE__;
1254
1255	register_command "perl-reload" => sub {	2370	register_command "reload" => sub {
1256	my ($who, $arg) = @_;	2371	my ($who, $arg) = @_;
1257		2372
1258	if ($who->flag (FLAG_WIZ)) {	2373	if ($who->flag (FLAG_WIZ)) {
1259	_perl_reload {	2374	$who->message ("start of reload.");
1260	warn $_[0];	2375	reload;
1261	$who->message ($_[0]);	2376	$who->message ("end of reload.");
1262	};
1263	}	2377	}
1264	};	2378	};
1265		2379
1266	unshift @INC, $LIBDIR;	2380	unshift @INC, $LIBDIR;
1267		2381
1268	$TICK_WATCHER = Event->timer (	2382	$TICK_WATCHER = Event->timer (
		2383	reentrant => 0,
1269	prio => 0,	2384	prio => 0,
1270	at => $NEXT_TICK || 1,	2385	at => $NEXT_TICK || $TICK,
1271	data => WF_AUTOCANCEL,	2386	data => WF_AUTOCANCEL,
1272	cb => sub {	2387	cb => sub {
		2388	$NOW = Event::time;
		2389
1273	cf::server_tick; # one server iteration	2390	cf::server_tick; # one server iteration
1274		2391	$RUNTIME += $TICK;
1275	my $NOW = Event::time;
1276	$NEXT_TICK += $TICK;	2392	$NEXT_TICK += $TICK;
1277		2393
		2394	$WAIT_FOR_TICK->broadcast;
		2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2396
1278	# if we are delayed by four ticks or more, skip them all	2397	# if we are delayed by four ticks or more, skip them all
1279	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1280		2399
1281	$TICK_WATCHER->at ($NEXT_TICK);	2400	$TICK_WATCHER->at ($NEXT_TICK);
1282	$TICK_WATCHER->start;	2401	$TICK_WATCHER->start;
1283	},	2402	},
1284	);	2403	);
1285		2404
1286	IO::AIO::max_poll_time $TICK * 0.2;	2405	IO::AIO::max_poll_time $TICK * 0.2;
1287		2406
		2407	Event->io (
1288	Event->io (fd => IO::AIO::poll_fileno,	2408	fd => IO::AIO::poll_fileno,
1289	poll => 'r',	2409	poll => 'r',
1290	prio => 5,	2410	prio => 5,
1291	data => WF_AUTOCANCEL,	2411	data => WF_AUTOCANCEL,
1292	cb => \&IO::AIO::poll_cb);	2412	cb => \&IO::AIO::poll_cb,
		2413	);
		2414
		2415	Event->timer (
		2416	data => WF_AUTOCANCEL,
		2417	after => 0,
		2418	interval => 10,
		2419	cb => sub {
		2420	(Coro::unblock_sub {
		2421	write_runtime
		2422	or warn "ERROR: unable to write runtime file: $!";
		2423	})->();
		2424	},
		2425	);
		2426
		2427	END { cf::emergency_save }
1293		2428
1294	1	2429	1
1295		2430

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