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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 1.172 by root, Sun Jan 14 13:32:48 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;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
41	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
42		53
43	our %CFG;	54	our %CFG;
44		55
45	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
46		87
47	#############################################################################	88	#############################################################################
48		89
49	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
50		91
51	=over 4	92	=over 4
52		93
53	=item $cf::UPTIME	94	=item $cf::UPTIME
54		95
55	The timestamp of the server start (so not actually an uptime).	96	The timestamp of the server start (so not actually an uptime).
		97
		98	=item $cf::RUNTIME
		99
		100	The time this server has run, starts at 0 and is increased by $cf::TICK on
		101	every server tick.
56		102
57	=item $cf::LIBDIR	103	=item $cf::LIBDIR
58		104
59	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
61		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
62	=item $cf::TICK	112	=item $cf::TICK
63		113
64	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
65		115
66	=item %cf::CFG	116	=item %cf::CFG
67		117
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
70		127
71	=back	128	=back
72		129
73	=cut	130	=cut
74		131
75	BEGIN {	132	BEGIN {
76	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
78	$msg .= "\n"	137	$msg .= "\n"
79	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
80		139
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
83	};	141	};
84	}	142	}
85		143
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		163
106	$Event::DIED = sub {	164	$Event::DIED = sub {
107	warn "error in event callback: @_";	165	warn "error in event callback: @_";
108	};	166	};
109		167
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
115		169
116	=over 4	170	=over 4
117		171
		172	=item dumpval $ref
		173
118	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
119		194
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		196
122	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
123		198
…		…
137	=cut	212	=cut
138		213
139	sub to_json($) {	214	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
		217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		356	and return;
		357
		358	aio_fsync $fh
		359	and return;
		360
		361	close $fh
		362	or return;
		363
		364	aio_rename "$runtime~", $runtime
		365	and return;
		366
		367	1
142	}	368	}
143		369
144	=back	370	=back
145		371
146	=cut	372	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	504	our @CB_MAP = ();
279		505
280	my %attachment;	506	my %attachment;
281		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
282	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
284		516
285	use sort 'stable';	517	use sort 'stable';
286		518
…		…
457	# object support	689	# object support
458		690
459	sub reattach {	691	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	692	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		696
463	my $registry = $obj->registry;	697	my $registry = $obj->registry;
464		698
465	@$registry = ();	699	@$registry = ();
466		700
…		…
505	);	739	);
506		740
507	sub object_freezer_save {	741	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	742	my ($filename, $rdata, $objs) = @_;
509		743
		744	sync_job {
510	if (length $$rdata) {	745	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	746	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	747	$filename, length $$rdata, scalar @$objs;
513		748
514	if (open my $fh, ">:raw", "$filename~") {	749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	750	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		752	aio_fsync $fh;
522	close $fh;	753	close $fh;
		754
		755	if (@$objs) {
		756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		757	chmod SAVE_MODE, $fh;
		758	my $data = Storable::nfreeze { version => 1, objs => $objs };
		759	aio_write $fh, 0, (length $data), $data, 0;
		760	aio_fsync $fh;
		761	close $fh;
523	rename "$filename.pst~", "$filename.pst";	762	aio_rename "$filename.pst~", "$filename.pst";
		763	}
		764	} else {
		765	aio_unlink "$filename.pst";
		766	}
		767
		768	aio_rename "$filename~", $filename;
524	} else {	769	} else {
525	unlink "$filename.pst";	770	warn "FATAL: $filename~: $!\n";
526	}	771	}
527
528	rename "$filename~", $filename;
529	} else {	772	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	773	aio_unlink $filename;
534	unlink "$filename.pst";	774	aio_unlink "$filename.pst";
		775	}
535	}	776	}
536	}	777	}
537		778
538	sub object_freezer_as_string {	779	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	780	my ($rdata, $objs) = @_;
…		…
544	}	785	}
545		786
546	sub object_thawer_load {	787	sub object_thawer_load {
547	my ($filename) = @_;	788	my ($filename) = @_;
548		789
549	local $/;	790	my ($data, $av);
550		791
551	my $av;	792	(aio_load $filename, $data) >= 0
		793	or return;
552		794
553	#TODO: use sysread etc.	795	unless (aio_stat "$filename.pst") {
554	if (open my $data, "<:raw:perlio", $filename) {	796	(aio_load "$filename.pst", $av) >= 0
555	$data = <$data>;	797	or return;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	798	$av = eval { (Storable::thaw $av)->{objs} };
558	}	799	}
		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
559	return ($data, $av);	803	return ($data, $av);
560	}
561
562	()
563	}	804	}
564		805
565	#############################################################################	806	#############################################################################
566	# command handling &c	807	# command handling &c
567		808
…		…
591	=cut	832	=cut
592		833
593	sub register_extcmd {	834	sub register_extcmd {
594	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
595		836
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
600	}	838	}
601		839
602	cf::player->attach (	840	cf::player->attach (
603	on_command => sub {	841	on_command => sub {
604	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
617		855
618	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
619		857
620	if (ref $msg) {	858	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	862	}
625	}	863	}
626	} else {	864	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		867
630	cf::override;	868	cf::override;
631	},	869	},
632	);	870	);
633		871
634	sub register {
635	my ($base, $pkg) = @_;
636
637	#TODO
638	}
639
640	sub load_extension {	872	sub load_extension {
641	my ($path) = @_;	873	my ($path) = @_;
642		874
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
644	my $base = $1;	876	my $base = $1;
645	my $pkg = $1;	877	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
648		880
649	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
650		882
651	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
652	or die "$path: $!";	884	or die "$path: $!";
653		885
654	my $source =	886	my $source =
655	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
658	. "\n};\n1";	890	. "\n};\n1";
659		891
660	eval $source	892	unless (eval $source) {
661	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
662	: "extension disabled.\n";	894	: "extension disabled.\n";
663		895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
664	push @exts, $pkg;	896	warn $@;
665	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
666		898	exit 1;
667	# no strict 'refs';	899	}
668	# @{"$pkg\::ISA"} = ext::;	900	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	# }	901	}
683		902
684	# remove commands	903	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	}	904	}
709		905
710	sub load_extensions {	906	sub load_extensions {
711	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
712	next unless -r $ext;	908	next unless -r $ext;
…		…
716	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
717	}	913	}
718	}	914	}
719		915
720	#############################################################################	916	#############################################################################
721	# load/save/clean perl data associated with a map
722		917
723	*cf::mapsupport::on_clean = sub {	918	=head2 CORE EXTENSIONS
		919
		920	Functions and methods that extend core crossfire objects.
		921
		922	=cut
		923
		924	package cf::player;
		925
		926	use Coro::AIO;
		927
		928	=head3 cf::player
		929
		930	=over 4
		931
		932	=item cf::player::find $login
		933
		934	Returns the given player object, loading it if necessary (might block).
		935
		936	=cut
		937
		938	sub playerdir($) {
		939	cf::localdir
		940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} || do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} || do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
		975	}
		976	}
		977	}
		978
		979	sub save($) {
		980	my ($pl) = @_;
		981
		982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
		1085	}
		1086
		1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1088
		1089	Sends an ext reply to the player.
		1090
		1091	=cut
		1092
		1093	sub ext_reply($$$%) {
		1094	my ($self, $id, %msg) = @_;
		1095
		1096	$msg{msgid} = $id;
		1097
		1098	$self->send ("ext " . cf::to_json \%msg);
		1099	}
		1100
		1101	package cf;
		1102
		1103	=back
		1104
		1105
		1106	=head3 cf::map
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
		1112	package cf::map;
		1113
		1114	use Fcntl;
		1115	use Coro::AIO;
		1116
		1117	use overload
		1118	'""' => \&as_string;
		1119
		1120	our $MAX_RESET = 3600;
		1121	our $DEFAULT_RESET = 3000;
		1122
		1123	sub generate_random_map {
		1124	my ($self, $rmp) = @_;
		1125
		1126	# mit "rum" bekleckern, nicht
		1127	$self->_create_random_map (
		1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1131	$rmp->{exit_on_final_map},
		1132	$rmp->{xsize}, $rmp->{ysize},
		1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1138	(cf::region::find $rmp->{region}), $rmp->{custom}
		1139	)
		1140	}
		1141
		1142	sub register {
		1143	my (undef, $regex) = @_;
		1144	my $pkg = caller;
		1145
		1146	no strict;
		1147	push @{"$pkg\::ISA"}, __PACKAGE__;
		1148
		1149	$EXT_MAP{$pkg} = qr<$regex>;
		1150	}
		1151
		1152	# also paths starting with '/'
		1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1154
		1155	sub thawer_merge {
		1156	my ($self, $merge) = @_;
		1157
		1158	# we have to keep some variables in memory intact
		1159	local $self->{path};
		1160	local $self->{load_path};
		1161	local $self->{deny_save};
		1162	local $self->{deny_reset};
		1163
		1164	$self->SUPER::thawer_merge ($merge);
		1165	}
		1166
		1167	sub normalise {
		1168	my ($path, $base) = @_;
		1169
		1170	# map plan:
		1171	#
		1172	# /! non-realised random map exit (special hack!)
		1173	# {... are special paths that are not being touched
		1174	# ?xxx/... are special absolute paths
		1175	# ?random/... random maps
		1176	# /... normal maps
		1177	# ~user/... per-player map of a specific user
		1178
		1179	$path =~ s/$PATH_SEP/\//go;
		1180
		1181	# treat it as relative path if it starts with
		1182	# something that looks reasonable
		1183	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1184	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1185
		1186	$base =~ s{[^/]+/?$}{};
		1187	$path = "$base/$path";
		1188	}
		1189
		1190	for ($path) {
		1191	redo if s{//}{/};
		1192	redo if s{/\.?/}{/};
		1193	redo if s{/[^/]+/\.\./}{/};
		1194	}
		1195
		1196	$path
		1197	}
		1198
		1199	sub new_from_path {
		1200	my (undef, $path, $base) = @_;
		1201
		1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1203
		1204	$path = normalise $path, $base;
		1205
		1206	for my $pkg (keys %EXT_MAP) {
		1207	if ($path =~ $EXT_MAP{$pkg}) {
		1208	my $self = bless cf::map::new, $pkg;
		1209	$self->{path} = $path; $self->path ($path);
		1210	$self->init; # pass $1 etc.
		1211	return $self;
		1212	}
		1213	}
		1214
		1215	Carp::carp "unable to resolve path '$path'.";
		1216	()
		1217	}
		1218
		1219	sub init {
		1220	my ($self) = @_;
		1221
		1222	$self
		1223	}
		1224
		1225	sub as_string {
		1226	my ($self) = @_;
		1227
		1228	"$self->{path}"
		1229	}
		1230
		1231	# the displayed name, this is a one way mapping
		1232	sub visible_name {
		1233	&as_string
		1234	}
		1235
		1236	# the original (read-only) location
		1237	sub load_path {
		1238	my ($self) = @_;
		1239
		1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1241	}
		1242
		1243	# the temporary/swap location
		1244	sub save_path {
		1245	my ($self) = @_;
		1246
		1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1249	}
		1250
		1251	# the unique path, undef == no special unique path
		1252	sub uniq_path {
		1253	my ($self) = @_;
		1254
		1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1257	}
		1258
		1259	# and all this just because we cannot iterate over
		1260	# all maps in C++...
		1261	sub change_all_map_light {
		1262	my ($change) = @_;
		1263
		1264	$_->change_map_light ($change)
		1265	for grep $_->outdoor, values %cf::MAP;
		1266	}
		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->save_path);
		1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1273	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1274	}
		1275
		1276	sub load_header_from($) {
		1277	my ($self, $path) = @_;
		1278
		1279	utf8::encode $path;
		1280	aio_open $path, O_RDONLY, 0
		1281	or return;
		1282
		1283	$self->_load_header ($path)
		1284	or return;
		1285
		1286	$self->{load_path} = $path;
		1287
		1288	1
		1289	}
		1290
		1291	sub load_orig {
		1292	my ($self) = @_;
		1293
		1294	$self->load_header_from ($self->load_path)
		1295	}
		1296
		1297	sub load_temp {
		1298	my ($self) = @_;
		1299
		1300	$self->load_header_from ($self->save_path)
		1301	}
		1302
		1303	sub load_header {
		1304	my ($self) = @_;
		1305
		1306	if ($self->load_temp) {
		1307	$self->last_access ((delete $self->{last_access})
		1308	|| $cf::RUNTIME); #d#
		1309	# safety
		1310	$self->{instantiate_time} = $cf::RUNTIME
		1311	if $self->{instantiate_time} > $cf::RUNTIME;
		1312	} else {
		1313	$self->load_orig
		1314	or return;
		1315
		1316	$self->{load_original} = 1;
		1317	$self->{instantiate_time} = $cf::RUNTIME;
		1318	$self->last_access ($cf::RUNTIME);
		1319	$self->instantiate;
		1320	}
		1321
		1322	1
		1323	}
		1324
		1325	sub find;
		1326	sub find {
		1327	my ($path, $origin) = @_;
		1328
		1329	$path = normalise $path, $origin && $origin->path;
		1330
		1331	cf::lock_wait "map_find:$path";
		1332
		1333	$cf::MAP{$path} || do {
		1334	my $guard = cf::lock_acquire "map_find:$path";
		1335	my $map = new_from_path cf::map $path
		1336	or return;
		1337
		1338	$map->{last_save} = $cf::RUNTIME;
		1339
		1340	$map->load_header
		1341	or return;
		1342
		1343	if ($map->should_reset) {
		1344	$cf::WAIT_FOR_TICK->wait;
		1345	$map->reset;
		1346	undef $guard;
		1347	$map = find $path
		1348	or return;
		1349	}
		1350
		1351	$cf::MAP{$path} = $map
		1352	}
		1353	}
		1354
		1355	sub load {
		1356	my ($self) = @_;
		1357
		1358	my $path = $self->{path};
		1359	my $guard = cf::lock_acquire "map_load:$path";
		1360
		1361	return if $self->in_memory != cf::MAP_SWAPPED;
		1362
		1363	$self->in_memory (cf::MAP_LOADING);
		1364
		1365	$self->alloc;
		1366	$self->_load_objects ($self->{load_path}, 1)
		1367	or return;
		1368
		1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1370	if delete $self->{load_original};
		1371
		1372	if (my $uniq = $self->uniq_path) {
		1373	utf8::encode $uniq;
		1374	if (aio_open $uniq, O_RDONLY, 0) {
		1375	$self->clear_unique_items;
		1376	$self->_load_objects ($uniq, 0);
		1377	}
		1378	}
		1379
		1380	Coro::cede;
		1381
		1382	# now do the right thing for maps
		1383	$self->link_multipart_objects;
		1384
		1385	unless ($self->{deny_activate}) {
		1386	$self->decay_objects;
		1387	$self->fix_auto_apply;
		1388	$self->update_buttons;
		1389	Coro::cede;
		1390	$self->set_darkness_map;
		1391	$self->difficulty ($self->estimate_difficulty)
		1392	unless $self->difficulty;
		1393	Coro::cede;
		1394	$self->activate;
		1395	}
		1396
		1397	$self->in_memory (cf::MAP_IN_MEMORY);
		1398	}
		1399
		1400	sub customise_for {
		1401	my ($self, $ob) = @_;
		1402
		1403	return find "~" . $ob->name . "/" . $self->{path}
		1404	if $self->per_player;
		1405
		1406	$self
		1407	}
		1408
		1409	# find and load all maps in the 3x3 area around a map
		1410	sub load_diag {
724	my ($map) = @_;	1411	my ($map) = @_;
725		1412
726	my $path = $map->tmpname;	1413	my @diag; # diagonal neighbours
727	defined $path or return;
728		1414
729	unlink "$path.pst";	1415	for (0 .. 3) {
		1416	my $neigh = $map->tile_path ($_)
		1417	or next;
		1418	$neigh = find $neigh, $map
		1419	or next;
		1420	$neigh->load;
		1421
		1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1424	}
		1425
		1426	for (@diag) {
		1427	my $neigh = find @$_
		1428	or next;
		1429	$neigh->load;
		1430	}
		1431	}
		1432
		1433	sub find_sync {
		1434	my ($path, $origin) = @_;
		1435
		1436	cf::sync_job { find $path, $origin }
		1437	}
		1438
		1439	sub do_load_sync {
		1440	my ($map) = @_;
		1441
		1442	cf::sync_job { $map->load };
		1443	}
		1444
		1445	our %MAP_PREFETCH;
		1446	our $MAP_PREFETCHER = Coro::async {
		1447	while () {
		1448	for my $path (keys %MAP_PREFETCH) {
		1449	my $map = find $path
		1450	or next;
		1451	$map->load;
		1452
		1453	delete $MAP_PREFETCH{$path};
		1454	}
		1455	Coro::schedule;
		1456	}
730	};	1457	};
731		1458
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1459	sub find_async {
		1460	my ($path, $origin) = @_;
733		1461
734	#############################################################################	1462	$path = normalise $path, $origin && $origin->{path};
735	# load/save perl data associated with player->ob objects
736		1463
737	sub all_objects(@) {	1464	if (my $map = $cf::MAP{$path}) {
738	@_, map all_objects ($_->inv), @_	1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
739	}
740
741	# TODO: compatibility cruft, remove when no longer needed
742	cf::player->attach (
743	on_load => sub {
744	my ($pl, $path) = @_;
745
746	for my $o (all_objects $pl->ob) {
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {
748	$o->set_ob_key_value ("_perl_data");
749
750	%$o = %{ Storable::thaw pack "H*", $value };
751	}
752	}
753	},	1466	}
754	);
755		1467
756	#############################################################################	1468	$MAP_PREFETCH{$path} = 0;
		1469	$MAP_PREFETCHER->ready;
757		1470
758	=head2 CORE EXTENSIONS	1471	()
		1472	}
759		1473
760	Functions and methods that extend core crossfire objects.	1474	sub save {
		1475	my ($self) = @_;
761		1476
762	=head3 cf::player	1477	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1478
		1479	$self->{last_save} = $cf::RUNTIME;
		1480
		1481	return unless $self->dirty;
		1482
		1483	my $save = $self->save_path; utf8::encode $save;
		1484	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1485
		1486	$self->{load_path} = $save;
		1487
		1488	return if $self->{deny_save};
		1489
		1490	local $self->{last_access} = $self->last_access;#d#
		1491
		1492	cf::async {
		1493	$_->contr->save for $self->players;
		1494	};
		1495
		1496	if ($uniq) {
		1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1498	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1499	} else {
		1500	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1501	}
		1502	}
		1503
		1504	sub swap_out {
		1505	my ($self) = @_;
		1506
		1507	# save first because save cedes
		1508	$self->save;
		1509
		1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1511
		1512	return if $self->players;
		1513	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1514	return if $self->{deny_save};
		1515
		1516	$self->clear;
		1517	$self->in_memory (cf::MAP_SWAPPED);
		1518	}
		1519
		1520	sub reset_at {
		1521	my ($self) = @_;
		1522
		1523	# TODO: safety, remove and allow resettable per-player maps
		1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1525	return 1e99 if $self->{deny_reset};
		1526
		1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1529
		1530	$time + $to
		1531	}
		1532
		1533	sub should_reset {
		1534	my ($self) = @_;
		1535
		1536	$self->reset_at <= $cf::RUNTIME
		1537	}
		1538
		1539	sub rename {
		1540	my ($self, $new_path) = @_;
		1541
		1542	normalise $new_path;
		1543
		1544	$self->unlink_save;
		1545
		1546	delete $cf::MAP{$self->path};
		1547	$self->{path} = $new_path; $self->path ($self->{path});
		1548	$cf::MAP{$self->path} = $self;
		1549
		1550	$self->save;
		1551	}
		1552
		1553	sub reset {
		1554	my ($self) = @_;
		1555
		1556	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1557
		1558	return if $self->players;
		1559	return if $self->isa ("ext::map_per_player");#d#
		1560
		1561	warn "resetting map ", $self->path;#d#
		1562
		1563	delete $cf::MAP{$self->path};
		1564
		1565	$self->in_memory (cf::MAP_SWAPPED);
		1566	$self->clear;
		1567
		1568	$_->clear_links_to ($self) for values %cf::MAP;
		1569
		1570	$self->unlink_save;
		1571	$self->destroy;
		1572	}
		1573
		1574	my $nuke_counter = "aaaa";
		1575
		1576	sub nuke {
		1577	my ($self) = @_;
		1578
		1579	$self->{deny_save} = 1;
		1580	$self->reset_timeout (1);
		1581	$self->rename ("{nuke}/" . ($nuke_counter++));
		1582	$self->reset; # polite request, might not happen
		1583	}
		1584
		1585	=item cf::map::unique_maps
		1586
		1587	Returns an arrayref of paths of all shared maps that have
		1588	instantiated unique items. May block.
		1589
		1590	=cut
		1591
		1592	sub unique_maps() {
		1593	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1594	or return;
		1595
		1596	my @paths;
		1597
		1598	for (@$files) {
		1599	utf8::decode $_;
		1600	next if /\.pst$/;
		1601	next unless /^$PATH_SEP/o;
		1602
		1603	s/\.map$//;
		1604	push @paths, $_;
		1605	}
		1606
		1607	\@paths
		1608	}
		1609
		1610	package cf;
		1611
		1612	=back
		1613
		1614	=head3 cf::object
		1615
		1616	=cut
		1617
		1618	package cf::object;
763		1619
764	=over 4	1620	=over 4
765		1621
766	=item cf::player::exists $login	1622	=item $ob->inv_recursive
767		1623
768	Returns true when the given account exists.	1624	Returns the inventory of the object _and_ their inventories, recursively.
769		1625
770	=cut	1626	=cut
771		1627
772	sub cf::player::exists($) {	1628	sub inv_recursive_;
773	cf::player::find $_[0]	1629	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1630	map { $_, inv_recursive_ $_->inv } @_
775	}	1631	}
776		1632
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1633	sub inv_recursive {
778		1634	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	}	1635	}
		1636
		1637	package cf;
790		1638
791	=back	1639	=back
792		1640
793	=head3 cf::object::player	1641	=head3 cf::object::player
794		1642
…		…
832	(ref $cf::CFG{"may_$access"}	1680	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1681	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1682	: $cf::CFG{"may_$access"})
835	}	1683	}
836		1684
		1685	=item $player_object->enter_link
		1686
		1687	Freezes the player and moves him/her to a special map (C<{link}>).
		1688
		1689	The player should be reasonably safe there for short amounts of time. You
		1690	I<MUST> call C<leave_link> as soon as possible, though.
		1691
		1692	Will never block.
		1693
		1694	=item $player_object->leave_link ($map, $x, $y)
		1695
		1696	Moves the player out of the special C<{link}> map onto the specified
		1697	map. If the map is not valid (or omitted), the player will be moved back
		1698	to the location he/she was before the call to C<enter_link>, or, if that
		1699	fails, to the emergency map position.
		1700
		1701	Might block.
		1702
		1703	=cut
		1704
		1705	sub link_map {
		1706	unless ($LINK_MAP) {
		1707	$LINK_MAP = cf::map::find "{link}"
		1708	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1709	$LINK_MAP->load;
		1710	}
		1711
		1712	$LINK_MAP
		1713	}
		1714
		1715	sub cf::object::player::enter_link {
		1716	my ($self) = @_;
		1717
		1718	$self->deactivate_recursive;
		1719
		1720	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1721
		1722	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1723	if $self->map;
		1724
		1725	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1726	}
		1727
		1728	sub cf::object::player::leave_link {
		1729	my ($self, $map, $x, $y) = @_;
		1730
		1731	my $link_pos = delete $self->{_link_pos};
		1732
		1733	unless ($map) {
		1734	# restore original map position
		1735	($map, $x, $y) = @{ $link_pos || [] };
		1736	$map = cf::map::find $map;
		1737
		1738	unless ($map) {
		1739	($map, $x, $y) = @$EMERGENCY_POSITION;
		1740	$map = cf::map::find $map
		1741	or die "FATAL: cannot load emergency map\n";
		1742	}
		1743	}
		1744
		1745	($x, $y) = (-1, -1)
		1746	unless (defined $x) && (defined $y);
		1747
		1748	# use -1 or undef as default coordinates, not 0, 0
		1749	($x, $y) = ($map->enter_x, $map->enter_y)
		1750	if $x <=0 && $y <= 0;
		1751
		1752	$map->load;
		1753	$map->load_diag;
		1754
		1755	return unless $self->contr->active;
		1756	$self->activate_recursive;
		1757	$self->enter_map ($map, $x, $y);
		1758	}
		1759
		1760	cf::player->attach (
		1761	on_logout => sub {
		1762	my ($pl) = @_;
		1763
		1764	# abort map switching before logout
		1765	if ($pl->ob->{_link_pos}) {
		1766	cf::sync_job {
		1767	$pl->ob->leave_link
		1768	};
		1769	}
		1770	},
		1771	on_login => sub {
		1772	my ($pl) = @_;
		1773
		1774	# try to abort aborted map switching on player login :)
		1775	# should happen only on crashes
		1776	if ($pl->ob->{_link_pos}) {
		1777	$pl->ob->enter_link;
		1778	(async {
		1779	# we need this sleep as the login has a concurrent enter_exit running
		1780	# and this sleep increases chances of the player not ending up in scorn
		1781	$pl->ob->reply (undef,
		1782	"There was an internal problem at your last logout, "
		1783	. "the server will try to bring you to your intended destination in a second.",
		1784	cf::NDI_RED);
		1785	Coro::Timer::sleep 1;
		1786	$pl->ob->leave_link;
		1787	})->prio (2);
		1788	}
		1789	},
		1790	);
		1791
		1792	=item $player_object->goto ($path, $x, $y)
		1793
		1794	=cut
		1795
		1796	sub cf::object::player::goto {
		1797	my ($self, $path, $x, $y) = @_;
		1798
		1799	$self->enter_link;
		1800
		1801	(async {
		1802	my $map = cf::map::find $path;
		1803	$map = $map->customise_for ($self) if $map;
		1804
		1805	# warn "entering ", $map->path, " at ($x, $y)\n"
		1806	# if $map;
		1807
		1808	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1809
		1810	$self->leave_link ($map, $x, $y);
		1811	})->prio (1);
		1812	}
		1813
		1814	=item $player_object->enter_exit ($exit_object)
		1815
		1816	=cut
		1817
		1818	sub parse_random_map_params {
		1819	my ($spec) = @_;
		1820
		1821	my $rmp = { # defaults
		1822	xsize => 10,
		1823	ysize => 10,
		1824	};
		1825
		1826	for (split /\n/, $spec) {
		1827	my ($k, $v) = split /\s+/, $_, 2;
		1828
		1829	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1830	}
		1831
		1832	$rmp
		1833	}
		1834
		1835	sub prepare_random_map {
		1836	my ($exit) = @_;
		1837
		1838	# all this does is basically replace the /! path by
		1839	# a new random map path (?random/...) with a seed
		1840	# that depends on the exit object
		1841
		1842	my $rmp = parse_random_map_params $exit->msg;
		1843
		1844	if ($exit->map) {
		1845	$rmp->{region} = $exit->map->region_name;
		1846	$rmp->{origin_map} = $exit->map->path;
		1847	$rmp->{origin_x} = $exit->x;
		1848	$rmp->{origin_y} = $exit->y;
		1849	}
		1850
		1851	$rmp->{random_seed} ||= $exit->random_seed;
		1852
		1853	my $data = cf::to_json $rmp;
		1854	my $md5 = Digest::MD5::md5_hex $data;
		1855
		1856	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1857	aio_write $fh, 0, (length $data), $data, 0;
		1858
		1859	$exit->slaying ("?random/$md5");
		1860	$exit->msg (undef);
		1861	}
		1862	}
		1863
		1864	sub cf::object::player::enter_exit {
		1865	my ($self, $exit) = @_;
		1866
		1867	return unless $self->type == cf::PLAYER;
		1868
		1869	$self->enter_link;
		1870
		1871	(async {
		1872	$self->deactivate_recursive; # just to be sure
		1873	unless (eval {
		1874	prepare_random_map $exit
		1875	if $exit->slaying eq "/!";
		1876
		1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1879
		1880	1;
		1881	}) {
		1882	$self->message ("Something went wrong deep within the crossfire server. "
		1883	. "I'll try to bring you back to the map you were before. "
		1884	. "Please report this to the dungeon master!",
		1885	cf::NDI_UNIQUE | cf::NDI_RED);
		1886
		1887	warn "ERROR in enter_exit: $@";
		1888	$self->leave_link;
		1889	}
		1890	})->prio (1);
		1891	}
		1892
837	=head3 cf::client	1893	=head3 cf::client
838		1894
839	=over 4	1895	=over 4
840		1896
841	=item $client->send_drawinfo ($text, $flags)	1897	=item $client->send_drawinfo ($text, $flags)
…		…
884	on_reply => sub {	1940	on_reply => sub {
885	my ($ns, $msg) = @_;	1941	my ($ns, $msg) = @_;
886		1942
887	# this weird shuffling is so that direct followup queries	1943	# this weird shuffling is so that direct followup queries
888	# get handled first	1944	# get handled first
889	my $queue = delete $ns->{query_queue};	1945	my $queue = delete $ns->{query_queue}
		1946	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		1947
891	(shift @$queue)->[1]->($msg);	1948	(shift @$queue)->[1]->($msg);
892		1949
893	push @{ $ns->{query_queue} }, @$queue;	1950	push @{ $ns->{query_queue} }, @$queue;
894		1951
…		…
900	}	1957	}
901	}	1958	}
902	},	1959	},
903	);	1960	);
904		1961
905	=item $client->coro (\&cb)	1962	=item $client->async (\&cb)
906		1963
907	Create a new coroutine, running the specified callback. The coroutine will	1964	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	1965	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	1966	or loss of connection).
910		1967
911	=cut	1968	=cut
912		1969
913	sub cf::client::coro {	1970	sub cf::client::async {
914	my ($self, $cb) = @_;	1971	my ($self, $cb) = @_;
915		1972
916	my $coro; $coro = async {	1973	my $coro = &Coro::async ($cb);
917	eval {	1974
918	$cb->();	1975	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	1976	delete $self->{_coro}{$coro+0};
922	};	1977	});
923		1978
924	$self->{_coro}{$coro+0} = $coro;	1979	$self->{_coro}{$coro+0} = $coro;
		1980
		1981	$coro
925	}	1982	}
926		1983
927	cf::client->attach (	1984	cf::client->attach (
928	on_destroy => sub {	1985	on_destroy => sub {
929	my ($ns) = @_;	1986	my ($ns) = @_;
…		…
1093		2150
1094	{	2151	{
1095	my $path = cf::localdir . "/database.pst";	2152	my $path = cf::localdir . "/database.pst";
1096		2153
1097	sub db_load() {	2154	sub db_load() {
1098	warn "loading database $path\n";#d# remove later
1099	$DB = stat $path ? Storable::retrieve $path : { };	2155	$DB = stat $path ? Storable::retrieve $path : { };
1100	}	2156	}
1101		2157
1102	my $pid;	2158	my $pid;
1103		2159
1104	sub db_save() {	2160	sub db_save() {
1105	warn "saving database $path\n";#d# remove later
1106	waitpid $pid, 0 if $pid;	2161	waitpid $pid, 0 if $pid;
1107	if (0 == ($pid = fork)) {	2162	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;	2163	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";	2164	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;	2165	rename "$path~", $path;
…		…
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2213	open my $fh, "<:utf8", cf::confdir . "/config"
1159	or return;	2214	or return;
1160		2215
1161	local $/;	2216	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2217	*CFG = YAML::Syck::Load <$fh>;
		2218
		2219	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2220
		2221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2223
		2224	if (exists $CFG{mlockall}) {
		2225	eval {
		2226	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2227	and die "WARNING: m(un)lockall failed: $!\n";
		2228	};
		2229	warn $@ if $@;
		2230	}
1163	}	2231	}
1164		2232
1165	sub main {	2233	sub main {
		2234	# we must not ever block the main coroutine
		2235	local $Coro::idle = sub {
		2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2237	async { Event::one_event };
		2238	};
		2239
1166	cfg_load;	2240	cfg_load;
1167	db_load;	2241	db_load;
1168	load_extensions;	2242	load_extensions;
1169	Event::loop;	2243	Event::loop;
1170	}	2244	}
1171		2245
1172	#############################################################################	2246	#############################################################################
1173	# initialisation	2247	# initialisation and cleanup
1174		2248
		2249	# install some emergency cleanup handlers
		2250	BEGIN {
		2251	for my $signal (qw(INT HUP TERM)) {
		2252	Event->signal (
		2253	data => WF_AUTOCANCEL,
		2254	signal => $signal,
		2255	cb => sub {
		2256	cf::cleanup "SIG$signal";
		2257	},
		2258	);
		2259	}
		2260	}
		2261
		2262	sub emergency_save() {
		2263	my $freeze_guard = cf::freeze_mainloop;
		2264
		2265	warn "enter emergency perl save\n";
		2266
		2267	cf::sync_job {
		2268	# use a peculiar iteration method to avoid tripping on perl
		2269	# refcount bugs in for. also avoids problems with players
		2270	# and maps saved/destroyed asynchronously.
		2271	warn "begin emergency player save\n";
		2272	for my $login (keys %cf::PLAYER) {
		2273	my $pl = $cf::PLAYER{$login} or next;
		2274	$pl->valid or next;
		2275	$pl->save;
		2276	}
		2277	warn "end emergency player save\n";
		2278
		2279	warn "begin emergency map save\n";
		2280	for my $path (keys %cf::MAP) {
		2281	my $map = $cf::MAP{$path} or next;
		2282	$map->valid or next;
		2283	$map->save;
		2284	}
		2285	warn "end emergency map save\n";
		2286	};
		2287
		2288	warn "leave emergency perl save\n";
		2289	}
		2290
1175	sub _perl_reload(&) {	2291	sub reload() {
1176	my ($msg) = @_;	2292	# can/must only be called in main
		2293	if ($Coro::current != $Coro::main) {
		2294	warn "can only reload from main coroutine\n";
		2295	return;
		2296	}
1177		2297
1178	$msg->("reloading...");	2298	warn "reloading...";
		2299
		2300	warn "freezing server";
		2301	my $guard = freeze_mainloop;
		2302	cf::emergency_save;
		2303
		2304	warn "sync database to disk";
		2305	cf::db_sync;
		2306	IO::AIO::flush;
1179		2307
1180	eval {	2308	eval {
		2309	# if anything goes wrong in here, we should simply crash as we already saved
		2310
1181	# cancel all watchers	2311	warn "cancel all watchers";
1182	for (Event::all_watchers) {	2312	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2313	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2314	}
1185		2315
		2316	warn "cancel all extension coros";
		2317	$_->cancel for values %EXT_CORO;
		2318	%EXT_CORO = ();
		2319
		2320	warn "remove commands";
		2321	%COMMAND = ();
		2322
		2323	warn "remove ext commands";
		2324	%EXTCMD = ();
		2325
1186	# unload all extensions	2326	warn "unload/nuke all extensions";
1187	for (@exts) {	2327	for my $pkg (@EXTS) {
1188	$msg->("unloading <$_>");	2328	warn "... unloading $pkg";
1189	unload_extension $_;	2329
		2330	if (my $cb = $pkg->can ("unload")) {
		2331	eval {
		2332	$cb->($pkg);
		2333	1
		2334	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2335	}
1191		2336
		2337	warn "... nuking $pkg";
		2338	Symbol::delete_package $pkg;
		2339	}
		2340
1192	# unload all modules loaded from $LIBDIR	2341	warn "unload all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2342	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2344
1196	$msg->("removing <$k>");	2345	warn "removing <$k>";
1197	delete $INC{$k};	2346	delete $INC{$k};
1198		2347
1199	$k =~ s/\.pm$//;	2348	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2349	$k =~ s/\//::/g;
1201		2350
…		…
1204	}	2353	}
1205		2354
1206	Symbol::delete_package $k;	2355	Symbol::delete_package $k;
1207	}	2356	}
1208		2357
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2358	warn "get rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2359	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2361
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2362	warn "unload cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2363	delete $INC{"cf.pm"};
1221		2364
1222	# don't, removes xs symbols, too,	2365	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2366	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2367	#Symbol::delete_package __PACKAGE__;
1225		2368
1226	# reload cf.pm
1227	$msg->("reloading cf.pm");	2369	warn "reloading cf.pm";
1228	require cf;	2370	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2372
1231	# load config and database again	2373	warn "load config and database again";
1232	cf::cfg_load;	2374	cf::cfg_load;
1233	cf::db_load;	2375	cf::db_load;
1234		2376
1235	# load extensions	2377	warn "load extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2378	cf::load_extensions;
1238		2379
1239	# reattach attachments to objects	2380	warn "reattach attachments to objects/players";
1240	$msg->("reattach");
1241	_global_reattach;	2381	_global_reattach;
		2382	warn "reattach attachments to maps";
		2383	reattach $_ for values %MAP;
1242	};	2384	};
1243	$msg->($@) if $@;
1244		2385
1245	$msg->("reloaded");	2386	if ($@) {
		2387	warn $@;
		2388	warn "error while reloading, exiting.";
		2389	exit 1;
		2390	}
		2391
		2392	warn "reloaded";
1246	};	2393	};
1247		2394
1248	sub perl_reload() {
1249	_perl_reload {
1250	warn $_[0];
1251	print "$_[0]\n";
1252	};
1253	}
1254
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2395	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2396	my ($who, $arg) = @_;
1259		2397
1260	if ($who->flag (FLAG_WIZ)) {	2398	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2399	$who->message ("start of reload.");
1262	warn $_[0];	2400	reload;
1263	$who->message ($_[0]);	2401	$who->message ("end of reload.");
1264	};
1265	}	2402	}
1266	};	2403	};
1267		2404
1268	unshift @INC, $LIBDIR;	2405	unshift @INC, $LIBDIR;
1269		2406
1270	$TICK_WATCHER = Event->timer (	2407	$TICK_WATCHER = Event->timer (
		2408	reentrant => 0,
1271	prio => 0,	2409	prio => 0,
1272	at => $NEXT_TICK || 1,	2410	at => $NEXT_TICK || $TICK,
1273	data => WF_AUTOCANCEL,	2411	data => WF_AUTOCANCEL,
1274	cb => sub {	2412	cb => sub {
		2413	$NOW = Event::time;
		2414
1275	cf::server_tick; # one server iteration	2415	cf::server_tick; # one server iteration
1276		2416	$RUNTIME += $TICK;
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2417	$NEXT_TICK += $TICK;
1279		2418
		2419	$WAIT_FOR_TICK->broadcast;
		2420	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2421
1280	# if we are delayed by four ticks or more, skip them all	2422	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2423	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2424
1283	$TICK_WATCHER->at ($NEXT_TICK);	2425	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2426	$TICK_WATCHER->start;
1285	},	2427	},
1286	);	2428	);
1287		2429
1288	IO::AIO::max_poll_time $TICK * 0.2;	2430	IO::AIO::max_poll_time $TICK * 0.2;
1289		2431
		2432	$AIO_POLL_WATCHER = Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	2433	fd => IO::AIO::poll_fileno,
1291	poll => 'r',	2434	poll => 'r',
1292	prio => 5,	2435	prio => 5,
1293	data => WF_AUTOCANCEL,	2436	data => WF_AUTOCANCEL,
1294	cb => \&IO::AIO::poll_cb);	2437	cb => \&IO::AIO::poll_cb,
		2438	);
		2439
		2440	$WRITE_RUNTIME_WATCHER = Event->timer (
		2441	data => WF_AUTOCANCEL,
		2442	after => 0,
		2443	interval => 10,
		2444	cb => sub {
		2445	(Coro::unblock_sub {
		2446	write_runtime
		2447	or warn "ERROR: unable to write runtime file: $!";
		2448	})->();
		2449	},
		2450	);
		2451
		2452	END { cf::emergency_save }
1295		2453
1296	1	2454	1
1297		2455

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