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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.158 by root, Wed Jan 10 19:52:43 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 = ();
34	our %EXTCMD = ();	38	our %EXTCMD = ();
35		39
…		…
37	our $LIBDIR = datadir . "/ext";	41	our $LIBDIR = datadir . "/ext";
38		42
39	our $TICK = MAX_TIME * 1e-6;	43	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	44	our $TICK_WATCHER;
41	our $NEXT_TICK;	45	our $NEXT_TICK;
		46	our $NOW;
42		47
43	our %CFG;	48	our %CFG;
44		49
45	our $UPTIME; $UPTIME ||= time;	50	our $UPTIME; $UPTIME ||= time;
		51	our $RUNTIME;
		52
		53	our %PLAYER; # all users
		54	our %MAP; # all maps
		55	our $LINK_MAP; # the special {link} map
		56	our $RANDOM_MAPS = cf::localdir . "/random";
		57	our %EXT_CORO; # coroutines bound to extensions
		58
		59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		61
		62	binmode STDOUT;
		63	binmode STDERR;
		64
		65	# read virtual server time, if available
		66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		67	open my $fh, "<", cf::localdir . "/runtime"
		68	or die "unable to read runtime file: $!";
		69	$RUNTIME = <$fh> + 0.;
		70	}
		71
		72	mkdir cf::localdir;
		73	mkdir cf::localdir . "/" . cf::playerdir;
		74	mkdir cf::localdir . "/" . cf::tmpdir;
		75	mkdir cf::localdir . "/" . cf::uniquedir;
		76	mkdir $RANDOM_MAPS;
		77
		78	# a special map that is always available
		79	our $LINK_MAP;
		80	our $EMERGENCY_POSITION;
46		81
47	#############################################################################	82	#############################################################################
48		83
49	=head2 GLOBAL VARIABLES	84	=head2 GLOBAL VARIABLES
50		85
51	=over 4	86	=over 4
52		87
53	=item $cf::UPTIME	88	=item $cf::UPTIME
54		89
55	The timestamp of the server start (so not actually an uptime).	90	The timestamp of the server start (so not actually an uptime).
		91
		92	=item $cf::RUNTIME
		93
		94	The time this server has run, starts at 0 and is increased by $cf::TICK on
		95	every server tick.
56		96
57	=item $cf::LIBDIR	97	=item $cf::LIBDIR
58		98
59	The perl library directory, where extensions and cf-specific modules can	99	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	100	be found. It will be added to C<@INC> automatically.
61		101
		102	=item $cf::NOW
		103
		104	The time of the last (current) server tick.
		105
62	=item $cf::TICK	106	=item $cf::TICK
63		107
64	The interval between server ticks, in seconds.	108	The interval between server ticks, in seconds.
65		109
66	=item %cf::CFG	110	=item %cf::CFG
67		111
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	112	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	113	from wherever your confdir points to.
		114
		115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		116
		117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		119	processing has been done. Call C<< ->wait >> on them to maximise the
		120	window of cpu time available, or simply to synchronise to the server tick.
70		121
71	=back	122	=back
72		123
73	=cut	124	=cut
74		125
75	BEGIN {	126	BEGIN {
76	*CORE::GLOBAL::warn = sub {	127	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	128	my $msg = join "", @_;
		129	utf8::encode $msg;
		130
78	$msg .= "\n"	131	$msg .= "\n"
79	unless $msg =~ /\n$/;	132	unless $msg =~ /\n$/;
80		133
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	134	LOG llevError, $msg;
83	};	135	};
84	}	136	}
85		137
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
113		165
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 $json
123		196
…		…
139	sub to_json($) {	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]
142	}	215	}
143		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 automcatially 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	my $runtime = cf::localdir . "/runtime";
		344
		345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		346	or return;
		347
		348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		350	and return;
		351
		352	aio_fsync $fh
		353	and return;
		354
		355	close $fh
		356	or return;
		357
		358	aio_rename "$runtime~", $runtime
		359	and return;
		360
		361	1
		362	}
		363
144	=back	364	=back
145		365
146	=cut	366	=cut
		367
		368	#############################################################################
		369
		370	package cf::path;
		371
		372	use overload
		373	'""' => \&as_string;
		374
		375	# used to convert map paths into valid unix filenames by repalcing / by ∕
		376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		377
		378	sub new {
		379	my ($class, $path, $base) = @_;
		380
		381	$path = $path->as_string if ref $path;
		382
		383	my $self = bless { }, $class;
		384
		385	# {... are special paths that are not touched
		386	# ?xxx/... are special absolute paths
		387	# ?random/... random maps
		388	# /! non-realised random map exit
		389	# /... normal maps
		390	# ~/... per-player maps without a specific player (DO NOT USE)
		391	# ~user/... per-player map of a specific user
		392
		393	$path =~ s/$PATH_SEP/\//go;
		394
		395	if ($path =~ /^{/) {
		396	# fine as it is
		397	} elsif ($path =~ s{^\?random/}{}) {
		398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		399	$self->{random} = cf::from_json $data;
		400	} else {
		401	if ($path =~ s{^~([^/]+)?}{}) {
		402	$self->{user_rel} = 1;
		403
		404	if (defined $1) {
		405	$self->{user} = $1;
		406	} elsif ($base =~ m{^~([^/]+)/}) {
		407	$self->{user} = $1;
		408	} else {
		409	warn "cannot resolve user-relative path without user <$path,$base>\n";
		410	}
		411	} elsif ($path =~ /^\//) {
		412	# already absolute
		413	} else {
		414	$base =~ s{[^/]+/?$}{};
		415	return $class->new ("$base/$path");
		416	}
		417
		418	for ($path) {
		419	redo if s{/\.?/}{/};
		420	redo if s{/[^/]+/\.\./}{/};
		421	}
		422	}
		423
		424	$self->{path} = $path;
		425
		426	$self
		427	}
		428
		429	# the name / primary key / in-game path
		430	sub as_string {
		431	my ($self) = @_;
		432
		433	$self->{user_rel} ? "~$self->{user}$self->{path}"
		434	: $self->{random} ? "?random/$self->{path}"
		435	: $self->{path}
		436	}
		437
		438	# the displayed name, this is a one way mapping
		439	sub visible_name {
		440	my ($self) = @_;
		441
		442	# if (my $rmp = $self->{random}) {
		443	# # todo: be more intelligent about this
		444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		445	# } else {
		446	$self->as_string
		447	# }
		448	}
		449
		450	# escape the /'s in the path
		451	sub _escaped_path {
		452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		453	$path
		454	}
		455
		456	# the original (read-only) location
		457	sub load_path {
		458	my ($self) = @_;
		459
		460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		461	}
		462
		463	# the temporary/swap location
		464	sub save_path {
		465	my ($self) = @_;
		466
		467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		470	}
		471
		472	# the unique path, might be eq to save_path
		473	sub uniq_path {
		474	my ($self) = @_;
		475
		476	$self->{user_rel} || $self->{random}
		477	? undef
		478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		479	}
		480
		481	# return random map parameters, or undef
		482	sub random_map_params {
		483	my ($self) = @_;
		484
		485	$self->{random}
		486	}
		487
		488	# this is somewhat ugly, but style maps do need special treatment
		489	sub is_style_map {
		490	$_[0]{path} =~ m{^/styles/}
		491	}
		492
		493	package cf;
147		494
148	#############################################################################	495	#############################################################################
149		496
150	=head2 ATTACHABLE OBJECTS	497	=head2 ATTACHABLE OBJECTS
151		498
…		…
454	=cut	801	=cut
455		802
456	#############################################################################	803	#############################################################################
457	# object support	804	# object support
458		805
		806	sub reattach {
		807	# basically do the same as instantiate, without calling instantiate
		808	my ($obj) = @_;
		809
		810	my $registry = $obj->registry;
		811
		812	@$registry = ();
		813
		814	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		815
		816	for my $name (keys %{ $obj->{_attachment} || {} }) {
		817	if (my $attach = $attachment{$name}) {
		818	for (@$attach) {
		819	my ($klass, @attach) = @$_;
		820	_attach $registry, $klass, @attach;
		821	}
		822	} else {
		823	warn "object uses attachment '$name' that is not available, postponing.\n";
		824	}
		825	}
		826	}
		827
459	cf::attachable->attach (	828	cf::attachable->attach (
460	prio => -1000000,	829	prio => -1000000,
461	on_instantiate => sub {	830	on_instantiate => sub {
462	my ($obj, $data) = @_;	831	my ($obj, $data) = @_;
463		832
…		…
467	my ($name, $args) = @$_;	836	my ($name, $args) = @$_;
468		837
469	$obj->attach ($name, %{$args || {} });	838	$obj->attach ($name, %{$args || {} });
470	}	839	}
471	},	840	},
472	on_reattach => sub {	841	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($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 {	842	on_clone => sub {
493	my ($src, $dst) = @_;	843	my ($src, $dst) = @_;
494		844
495	@{$dst->registry} = @{$src->registry};	845	@{$dst->registry} = @{$src->registry};
496		846
…		…
502	);	852	);
503		853
504	sub object_freezer_save {	854	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	855	my ($filename, $rdata, $objs) = @_;
506		856
		857	sync_job {
507	if (length $$rdata) {	858	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	859	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	860	$filename, length $$rdata, scalar @$objs;
510		861
511	if (open my $fh, ">:raw", "$filename~") {	862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	863	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		865	aio_fsync $fh;
519	close $fh;	866	close $fh;
		867
		868	if (@$objs) {
		869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		870	chmod SAVE_MODE, $fh;
		871	my $data = Storable::nfreeze { version => 1, objs => $objs };
		872	aio_write $fh, 0, (length $data), $data, 0;
		873	aio_fsync $fh;
		874	close $fh;
520	rename "$filename.pst~", "$filename.pst";	875	aio_rename "$filename.pst~", "$filename.pst";
		876	}
		877	} else {
		878	aio_unlink "$filename.pst";
		879	}
		880
		881	aio_rename "$filename~", $filename;
521	} else {	882	} else {
522	unlink "$filename.pst";	883	warn "FATAL: $filename~: $!\n";
523	}	884	}
524
525	rename "$filename~", $filename;
526	} else {	885	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	886	aio_unlink $filename;
531	unlink "$filename.pst";	887	aio_unlink "$filename.pst";
		888	}
532	}	889	}
533	}	890	}
534		891
535	sub object_freezer_as_string {	892	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	893	my ($rdata, $objs) = @_;
…		…
541	}	898	}
542		899
543	sub object_thawer_load {	900	sub object_thawer_load {
544	my ($filename) = @_;	901	my ($filename) = @_;
545		902
546	local $/;	903	my ($data, $av);
547		904
548	my $av;	905	(aio_load $filename, $data) >= 0
		906	or return;
549		907
550	#TODO: use sysread etc.	908	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	909	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	910	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	911	$av = eval { (Storable::thaw $av)->{objs} };
555	}	912	}
		913
		914	warn sprintf "loading %s (%d)\n",
		915	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	916	return ($data, $av);
557	}
558
559	()
560	}	917	}
561		918
562	#############################################################################	919	#############################################################################
563	# command handling &c	920	# command handling &c
564		921
…		…
727	};	1084	};
728		1085
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
730		1087
731	#############################################################################	1088	#############################################################################
732	# load/save perl data associated with player->ob objects
733		1089
734	sub all_objects(@) {	1090	=head2 CORE EXTENSIONS
735	@_, map all_objects ($_->inv), @_
736	}
737		1091
738	# TODO: compatibility cruft, remove when no longer needed	1092	Functions and methods that extend core crossfire objects.
739	cf::player->attach (	1093
740	on_load => sub {	1094	=cut
		1095
		1096	package cf::player;
		1097
		1098	use Coro::AIO;
		1099
		1100	=head3 cf::player
		1101
		1102	=over 4
		1103
		1104	=item cf::player::find $login
		1105
		1106	Returns the given player object, loading it if necessary (might block).
		1107
		1108	=cut
		1109
		1110	sub playerdir($) {
		1111	cf::localdir
		1112	. "/"
		1113	. cf::playerdir
		1114	. "/"
		1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1116	}
		1117
		1118	sub path($) {
		1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1120
		1121	(playerdir $login) . "/$login.pl"
		1122	}
		1123
		1124	sub find_active($) {
		1125	$cf::PLAYER{$_[0]}
		1126	and $cf::PLAYER{$_[0]}->active
		1127	and $cf::PLAYER{$_[0]}
		1128	}
		1129
		1130	sub exists($) {
		1131	my ($login) = @_;
		1132
		1133	$cf::PLAYER{$login}
		1134	or cf::sync_job { !aio_stat $login }
		1135	}
		1136
		1137	sub find($) {
		1138	return $cf::PLAYER{$_[0]} || do {
		1139	my $login = $_[0];
		1140
		1141	my $guard = cf::lock_acquire "user_find:$login";
		1142
		1143	$cf::PLAYER{$_[0]} || do {
		1144	my $pl = load_pl path $login
		1145	or return;
		1146	$cf::PLAYER{$login} = $pl
		1147	}
		1148	}
		1149	}
		1150
		1151	sub save($) {
		1152	my ($pl) = @_;
		1153
		1154	return if $pl->{deny_save};
		1155
		1156	my $path = path $pl;
		1157	my $guard = cf::lock_acquire "user_save:$path";
		1158
		1159	return if $pl->{deny_save};
		1160
		1161	aio_mkdir playerdir $pl, 0770;
		1162	$pl->{last_save} = $cf::RUNTIME;
		1163
		1164	$pl->save_pl ($path);
		1165	Coro::cede;
		1166	}
		1167
		1168	sub new($) {
		1169	my ($login) = @_;
		1170
		1171	my $self = create;
		1172
		1173	$self->ob->name ($login);
		1174	$self->{deny_save} = 1;
		1175
		1176	$cf::PLAYER{$login} = $self;
		1177
		1178	$self
		1179	}
		1180
		1181	=item $pl->quit_character
		1182
		1183	Nukes the player without looking back. If logged in, the connection will
		1184	be destroyed. May block for a long time.
		1185
		1186	=cut
		1187
		1188	sub quit_character {
		1189	my ($pl) = @_;
		1190
		1191	$pl->{deny_save} = 1;
		1192	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1193
		1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1195	$pl->deactivate;
		1196	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1197	$pl->ns->destroy if $pl->ns;
		1198
		1199	my $path = playerdir $pl;
		1200	my $temp = "$path~$cf::RUNTIME~deleting~";
		1201	aio_rename $path, $temp;
		1202	delete $cf::PLAYER{$pl->ob->name};
		1203	$pl->destroy;
		1204	IO::AIO::aio_rmtree $temp;
		1205	}
		1206
		1207	=item cf::player::list_logins
		1208
		1209	Returns am arrayref of all valid playernames in the system, can take a
		1210	while and may block, so not sync_job-capable, ever.
		1211
		1212	=cut
		1213
		1214	sub list_logins {
		1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1216	or return [];
		1217
		1218	my @logins;
		1219
		1220	for my $login (@$dirs) {
		1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1222	aio_read $fh, 0, 512, my $buf, 0 or next;
		1223	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1224
		1225	utf8::decode $login;
		1226	push @logins, $login;
		1227	}
		1228
		1229	\@logins
		1230	}
		1231
		1232	=item $player->maps
		1233
		1234	Returns an arrayref of cf::path's of all maps that are private for this
		1235	player. May block.
		1236
		1237	=cut
		1238
		1239	sub maps($) {
		1240	my ($pl) = @_;
		1241
		1242	my $files = aio_readdir playerdir $pl
		1243	or return;
		1244
		1245	my @paths;
		1246
		1247	for (@$files) {
		1248	utf8::decode $_;
		1249	next if /\.(?:pl|pst)$/;
		1250	next unless /^$PATH_SEP/o;
		1251
		1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1253	}
		1254
		1255	\@paths
		1256	}
		1257
		1258	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1259
		1260	Sends an ext reply to the player.
		1261
		1262	=cut
		1263
		1264	sub ext_reply($$$%) {
		1265	my ($self, $id, %msg) = @_;
		1266
		1267	$msg{msgid} = $id;
		1268
		1269	$self->send ("ext " . cf::to_json \%msg);
		1270	}
		1271
		1272	package cf;
		1273
		1274	=back
		1275
		1276
		1277	=head3 cf::map
		1278
		1279	=over 4
		1280
		1281	=cut
		1282
		1283	package cf::map;
		1284
		1285	use Fcntl;
		1286	use Coro::AIO;
		1287
		1288	our $MAX_RESET = 3600;
		1289	our $DEFAULT_RESET = 3000;
		1290
		1291	sub generate_random_map {
		1292	my ($path, $rmp) = @_;
		1293
		1294	# mit "rum" bekleckern, nicht
		1295	cf::map::_create_random_map
		1296	$path,
		1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1300	$rmp->{exit_on_final_map},
		1301	$rmp->{xsize}, $rmp->{ysize},
		1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1307	(cf::region::find $rmp->{region})
		1308	}
		1309
		1310	# and all this just because we cannot iterate over
		1311	# all maps in C++...
		1312	sub change_all_map_light {
		1313	my ($change) = @_;
		1314
		1315	$_->change_map_light ($change)
		1316	for grep $_->outdoor, values %cf::MAP;
		1317	}
		1318
		1319	sub try_load_header($) {
741	my ($pl, $path) = @_;	1320	my ($path) = @_;
742		1321
743	for my $o (all_objects $pl->ob) {	1322	utf8::encode $path;
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1323	aio_open $path, O_RDONLY, 0
745	$o->set_ob_key_value ("_perl_data");	1324	or return;
746		1325
747	%$o = %{ Storable::thaw pack "H*", $value };	1326	my $map = cf::map::new
		1327	or return;
		1328
		1329	# for better error messages only, will be overwritten
		1330	$map->path ($path);
		1331
		1332	$map->load_header ($path)
		1333	or return;
		1334
		1335	$map->{load_path} = $path;
		1336
		1337	$map
		1338	}
		1339
		1340	sub find;
		1341	sub find {
		1342	my ($path, $origin) = @_;
		1343
		1344	#warn "find<$path,$origin>\n";#d#
		1345
		1346	$path = new cf::path $path, $origin && $origin->path;
		1347	my $key = $path->as_string;
		1348
		1349	cf::lock_wait "map_find:$key";
		1350
		1351	$cf::MAP{$key} || do {
		1352	my $guard = cf::lock_acquire "map_find:$key";
		1353
		1354	# do it the slow way
		1355	my $map = try_load_header $path->save_path;
		1356
		1357	Coro::cede;
		1358
		1359	if ($map) {
		1360	$map->last_access ((delete $map->{last_access})
		1361	|| $cf::RUNTIME); #d#
		1362	# safety
		1363	$map->{instantiate_time} = $cf::RUNTIME
		1364	if $map->{instantiate_time} > $cf::RUNTIME;
		1365	} else {
		1366	if (my $rmp = $path->random_map_params) {
		1367	$map = generate_random_map $key, $rmp;
		1368	} else {
		1369	$map = try_load_header $path->load_path;
748	}	1370	}
		1371
		1372	$map or return;
		1373
		1374	$map->{load_original} = 1;
		1375	$map->{instantiate_time} = $cf::RUNTIME;
		1376	$map->last_access ($cf::RUNTIME);
		1377	$map->instantiate;
		1378
		1379	# per-player maps become, after loading, normal maps
		1380	$map->per_player (0) if $path->{user_rel};
749	}	1381	}
		1382
		1383	$map->path ($key);
		1384	$map->{path} = $path;
		1385	$map->{last_save} = $cf::RUNTIME;
		1386
		1387	Coro::cede;
		1388
		1389	if ($map->should_reset) {
		1390	$map->reset;
		1391	undef $guard;
		1392	$map = find $path
		1393	or return;
		1394	}
		1395
		1396	$cf::MAP{$key} = $map
750	},	1397	}
751	);	1398	}
752		1399
753	#############################################################################	1400	sub load {
		1401	my ($self) = @_;
754		1402
755	=head2 CORE EXTENSIONS	1403	my $path = $self->{path};
		1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
756		1405
757	Functions and methods that extend core crossfire objects.	1406	return if $self->in_memory != cf::MAP_SWAPPED;
758		1407
759	=head3 cf::player	1408	$self->in_memory (cf::MAP_LOADING);
		1409
		1410	$self->alloc;
		1411	$self->load_objects ($self->{load_path}, 1)
		1412	or return;
		1413
		1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1415	if delete $self->{load_original};
		1416
		1417	if (my $uniq = $path->uniq_path) {
		1418	utf8::encode $uniq;
		1419	if (aio_open $uniq, O_RDONLY, 0) {
		1420	$self->clear_unique_items;
		1421	$self->load_objects ($uniq, 0);
		1422	}
		1423	}
		1424
		1425	Coro::cede;
		1426
		1427	# now do the right thing for maps
		1428	$self->link_multipart_objects;
		1429
		1430	if ($self->{path}->is_style_map) {
		1431	$self->{deny_save} = 1;
		1432	$self->{deny_reset} = 1;
		1433	} else {
		1434	$self->fix_auto_apply;
		1435	$self->decay_objects;
		1436	$self->update_buttons;
		1437	$self->set_darkness_map;
		1438	$self->difficulty ($self->estimate_difficulty)
		1439	unless $self->difficulty;
		1440	$self->activate;
		1441	}
		1442
		1443	Coro::cede;
		1444
		1445	$self->in_memory (cf::MAP_IN_MEMORY);
		1446	}
		1447
		1448	# find and load all maps in the 3x3 area around a map
		1449	sub load_diag {
		1450	my ($map) = @_;
		1451
		1452	my @diag; # diagonal neighbours
		1453
		1454	for (0 .. 3) {
		1455	my $neigh = $map->tile_path ($_)
		1456	or next;
		1457	$neigh = find $neigh, $map
		1458	or next;
		1459	$neigh->load;
		1460
		1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1463	}
		1464
		1465	for (@diag) {
		1466	my $neigh = find @$_
		1467	or next;
		1468	$neigh->load;
		1469	}
		1470	}
		1471
		1472	sub find_sync {
		1473	my ($path, $origin) = @_;
		1474
		1475	cf::sync_job { find $path, $origin }
		1476	}
		1477
		1478	sub do_load_sync {
		1479	my ($map) = @_;
		1480
		1481	cf::sync_job { $map->load };
		1482	}
		1483
		1484	our %MAP_PREFETCH;
		1485	our $MAP_PREFETCHER = Coro::async {
		1486	while () {
		1487	while (%MAP_PREFETCH) {
		1488	my $key = each %MAP_PREFETCH
		1489	or next;
		1490	my $path = delete $MAP_PREFETCH{$key};
		1491
		1492	my $map = find $path
		1493	or next;
		1494	$map->load;
		1495	}
		1496	Coro::schedule;
		1497	}
		1498	};
		1499
		1500	sub find_async {
		1501	my ($path, $origin) = @_;
		1502
		1503	$path = new cf::path $path, $origin && $origin->path;
		1504	my $key = $path->as_string;
		1505
		1506	if (my $map = $cf::MAP{$key}) {
		1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1508	}
		1509
		1510	$MAP_PREFETCH{$key} = $path;
		1511	$MAP_PREFETCHER->ready;
		1512
		1513	()
		1514	}
		1515
		1516	sub save {
		1517	my ($self) = @_;
		1518
		1519	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1520
		1521	$self->{last_save} = $cf::RUNTIME;
		1522
		1523	return unless $self->dirty;
		1524
		1525	my $save = $self->{path}->save_path; utf8::encode $save;
		1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1527
		1528	$self->{load_path} = $save;
		1529
		1530	return if $self->{deny_save};
		1531
		1532	local $self->{last_access} = $self->last_access;#d#
		1533
		1534	cf::async {
		1535	$_->contr->save for $self->players;
		1536	};
		1537
		1538	if ($uniq) {
		1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1540	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1541	} else {
		1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1543	}
		1544	}
		1545
		1546	sub swap_out {
		1547	my ($self) = @_;
		1548
		1549	# save first because save cedes
		1550	$self->save;
		1551
		1552	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1553
		1554	return if $self->players;
		1555	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1556	return if $self->{deny_save};
		1557
		1558	$self->clear;
		1559	$self->in_memory (cf::MAP_SWAPPED);
		1560	}
		1561
		1562	sub reset_at {
		1563	my ($self) = @_;
		1564
		1565	# TODO: safety, remove and allow resettable per-player maps
		1566	return 1e99 if $self->{path}{user_rel};
		1567	return 1e99 if $self->{deny_reset};
		1568
		1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1571
		1572	$time + $to
		1573	}
		1574
		1575	sub should_reset {
		1576	my ($self) = @_;
		1577
		1578	$self->reset_at <= $cf::RUNTIME
		1579	}
		1580
		1581	sub unlink_save {
		1582	my ($self) = @_;
		1583
		1584	utf8::encode (my $save = $self->{path}->save_path);
		1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1587	}
		1588
		1589	sub rename {
		1590	my ($self, $new_path) = @_;
		1591
		1592	$self->unlink_save;
		1593
		1594	delete $cf::MAP{$self->path};
		1595	$self->{path} = new cf::path $new_path;
		1596	$self->path ($self->{path}->as_string);
		1597	$cf::MAP{$self->path} = $self;
		1598
		1599	$self->save;
		1600	}
		1601
		1602	sub reset {
		1603	my ($self) = @_;
		1604
		1605	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1606
		1607	return if $self->players;
		1608	return if $self->{path}{user_rel};#d#
		1609
		1610	warn "resetting map ", $self->path;#d#
		1611
		1612	delete $cf::MAP{$self->path};
		1613
		1614	$_->clear_links_to ($self) for values %cf::MAP;
		1615
		1616	$self->unlink_save;
		1617	$self->destroy;
		1618	}
		1619
		1620	my $nuke_counter = "aaaa";
		1621
		1622	sub nuke {
		1623	my ($self) = @_;
		1624
		1625	$self->{deny_save} = 1;
		1626	$self->reset_timeout (1);
		1627	$self->rename ("{nuke}/" . ($nuke_counter++));
		1628	$self->reset; # polite request, might not happen
		1629	}
		1630
		1631	sub customise_for {
		1632	my ($map, $ob) = @_;
		1633
		1634	if ($map->per_player) {
		1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1636	}
		1637
		1638	$map
		1639	}
		1640
		1641	=item cf::map::unique_maps
		1642
		1643	Returns an arrayref of cf::path's of all shared maps that have
		1644	instantiated unique items. May block.
		1645
		1646	=cut
		1647
		1648	sub unique_maps() {
		1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1650	or return;
		1651
		1652	my @paths;
		1653
		1654	for (@$files) {
		1655	utf8::decode $_;
		1656	next if /\.pst$/;
		1657	next unless /^$PATH_SEP/o;
		1658
		1659	push @paths, new cf::path $_;
		1660	}
		1661
		1662	\@paths
		1663	}
		1664
		1665	package cf;
		1666
		1667	=back
		1668
		1669	=head3 cf::object
		1670
		1671	=cut
		1672
		1673	package cf::object;
760		1674
761	=over 4	1675	=over 4
762		1676
763	=item cf::player::exists $login	1677	=item $ob->inv_recursive
764		1678
765	Returns true when the given account exists.	1679	Returns the inventory of the object _and_ their inventories, recursively.
766		1680
767	=cut	1681	=cut
768		1682
769	sub cf::player::exists($) {	1683	sub inv_recursive_;
770	cf::player::find $_[0]	1684	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1685	map { $_, inv_recursive_ $_->inv } @_
772	}	1686	}
773		1687
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1688	sub inv_recursive {
775		1689	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	}	1690	}
		1691
		1692	package cf;
787		1693
788	=back	1694	=back
789		1695
790	=head3 cf::object::player	1696	=head3 cf::object::player
791		1697
…		…
829	(ref $cf::CFG{"may_$access"}	1735	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1736	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1737	: $cf::CFG{"may_$access"})
832	}	1738	}
833		1739
		1740	=item $player_object->enter_link
		1741
		1742	Freezes the player and moves him/her to a special map (C<{link}>).
		1743
		1744	The player should be reaosnably safe there for short amounts of time. You
		1745	I<MUST> call C<leave_link> as soon as possible, though.
		1746
		1747	=item $player_object->leave_link ($map, $x, $y)
		1748
		1749	Moves the player out of the specila link map onto the given map. If the
		1750	map is not valid (or omitted), the player will be moved back to the
		1751	location he/she was before the call to C<enter_link>, or, if that fails,
		1752	to the emergency map position.
		1753
		1754	Might block.
		1755
		1756	=cut
		1757
		1758	sub cf::object::player::enter_link {
		1759	my ($self) = @_;
		1760
		1761	$self->deactivate_recursive;
		1762
		1763	return if $self->map == $LINK_MAP;
		1764
		1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1766	if $self->map;
		1767
		1768	$self->enter_map ($LINK_MAP, 20, 20);
		1769	}
		1770
		1771	sub cf::object::player::leave_link {
		1772	my ($self, $map, $x, $y) = @_;
		1773
		1774	my $link_pos = delete $self->{_link_pos};
		1775
		1776	unless ($map) {
		1777	# restore original map position
		1778	($map, $x, $y) = @{ $link_pos || [] };
		1779	$map = cf::map::find $map;
		1780
		1781	unless ($map) {
		1782	($map, $x, $y) = @$EMERGENCY_POSITION;
		1783	$map = cf::map::find $map
		1784	or die "FATAL: cannot load emergency map\n";
		1785	}
		1786	}
		1787
		1788	($x, $y) = (-1, -1)
		1789	unless (defined $x) && (defined $y);
		1790
		1791	# use -1 or undef as default coordinates, not 0, 0
		1792	($x, $y) = ($map->enter_x, $map->enter_y)
		1793	if $x <=0 && $y <= 0;
		1794
		1795	$map->load;
		1796	$map->load_diag;
		1797
		1798	return unless $self->contr->active;
		1799	$self->activate_recursive;
		1800	$self->enter_map ($map, $x, $y);
		1801	}
		1802
		1803	cf::player->attach (
		1804	on_logout => sub {
		1805	my ($pl) = @_;
		1806
		1807	# abort map switching before logout
		1808	if ($pl->ob->{_link_pos}) {
		1809	cf::sync_job {
		1810	$pl->ob->leave_link
		1811	};
		1812	}
		1813	},
		1814	on_login => sub {
		1815	my ($pl) = @_;
		1816
		1817	# try to abort aborted map switching on player login :)
		1818	# should happen only on crashes
		1819	if ($pl->ob->{_link_pos}) {
		1820	$pl->ob->enter_link;
		1821	(async {
		1822	# we need this sleep as the login has a concurrent enter_exit running
		1823	# and this sleep increases chances of the player not ending up in scorn
		1824	$pl->ob->reply (undef,
		1825	"There was an internal problem at your last logout, "
		1826	. "the server will try to bring you to your intended destination in a second.",
		1827	cf::NDI_RED);
		1828	Coro::Timer::sleep 1;
		1829	$pl->ob->leave_link;
		1830	})->prio (2);
		1831	}
		1832	},
		1833	);
		1834
		1835	=item $player_object->goto ($path, $x, $y)
		1836
		1837	=cut
		1838
		1839	sub cf::object::player::goto {
		1840	my ($self, $path, $x, $y) = @_;
		1841
		1842	$path = new cf::path $path;
		1843
		1844	$self->enter_link;
		1845
		1846	(async {
		1847	my $map = cf::map::find $path->as_string;
		1848	$map = $map->customise_for ($self) if $map;
		1849
		1850	# warn "entering ", $map->path, " at ($x, $y)\n"
		1851	# if $map;
		1852
		1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1854
		1855	$self->leave_link ($map, $x, $y);
		1856	})->prio (1);
		1857	}
		1858
		1859	=item $player_object->enter_exit ($exit_object)
		1860
		1861	=cut
		1862
		1863	sub parse_random_map_params {
		1864	my ($spec) = @_;
		1865
		1866	my $rmp = { # defaults
		1867	xsize => 10,
		1868	ysize => 10,
		1869	};
		1870
		1871	for (split /\n/, $spec) {
		1872	my ($k, $v) = split /\s+/, $_, 2;
		1873
		1874	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1875	}
		1876
		1877	$rmp
		1878	}
		1879
		1880	sub prepare_random_map {
		1881	my ($exit) = @_;
		1882
		1883	# all this does is basically replace the /! path by
		1884	# a new random map path (?random/...) with a seed
		1885	# that depends on the exit object
		1886
		1887	my $rmp = parse_random_map_params $exit->msg;
		1888
		1889	if ($exit->map) {
		1890	$rmp->{region} = $exit->map->region_name;
		1891	$rmp->{origin_map} = $exit->map->path;
		1892	$rmp->{origin_x} = $exit->x;
		1893	$rmp->{origin_y} = $exit->y;
		1894	}
		1895
		1896	$rmp->{random_seed} ||= $exit->random_seed;
		1897
		1898	my $data = cf::to_json $rmp;
		1899	my $md5 = Digest::MD5::md5_hex $data;
		1900
		1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1902	aio_write $fh, 0, (length $data), $data, 0;
		1903
		1904	$exit->slaying ("?random/$md5");
		1905	$exit->msg (undef);
		1906	}
		1907	}
		1908
		1909	sub cf::object::player::enter_exit {
		1910	my ($self, $exit) = @_;
		1911
		1912	return unless $self->type == cf::PLAYER;
		1913
		1914	$self->enter_link;
		1915
		1916	(async {
		1917	$self->deactivate_recursive; # just to be sure
		1918	unless (eval {
		1919	prepare_random_map $exit
		1920	if $exit->slaying eq "/!";
		1921
		1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1924
		1925	1;
		1926	}) {
		1927	$self->message ("Something went wrong deep within the crossfire server. "
		1928	. "I'll try to bring you back to the map you were before. "
		1929	. "Please report this to the dungeon master!",
		1930	cf::NDI_UNIQUE | cf::NDI_RED);
		1931
		1932	warn "ERROR in enter_exit: $@";
		1933	$self->leave_link;
		1934	}
		1935	})->prio (1);
		1936	}
		1937
834	=head3 cf::client	1938	=head3 cf::client
835		1939
836	=over 4	1940	=over 4
837		1941
838	=item $client->send_drawinfo ($text, $flags)	1942	=item $client->send_drawinfo ($text, $flags)
…		…
881	on_reply => sub {	1985	on_reply => sub {
882	my ($ns, $msg) = @_;	1986	my ($ns, $msg) = @_;
883		1987
884	# this weird shuffling is so that direct followup queries	1988	# this weird shuffling is so that direct followup queries
885	# get handled first	1989	# get handled first
886	my $queue = delete $ns->{query_queue};	1990	my $queue = delete $ns->{query_queue}
		1991	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		1992
888	(shift @$queue)->[1]->($msg);	1993	(shift @$queue)->[1]->($msg);
889		1994
890	push @{ $ns->{query_queue} }, @$queue;	1995	push @{ $ns->{query_queue} }, @$queue;
891		1996
…		…
897	}	2002	}
898	}	2003	}
899	},	2004	},
900	);	2005	);
901		2006
902	=item $client->coro (\&cb)	2007	=item $client->async (\&cb)
903		2008
904	Create a new coroutine, running the specified callback. The coroutine will	2009	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2010	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2011	or loss of connection).
907		2012
908	=cut	2013	=cut
909		2014
910	sub cf::client::coro {	2015	sub cf::client::async {
911	my ($self, $cb) = @_;	2016	my ($self, $cb) = @_;
912		2017
913	my $coro; $coro = async {	2018	my $coro = &Coro::async ($cb);
914	eval {	2019
915	$cb->();	2020	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2021	delete $self->{_coro}{$coro+0};
919	};	2022	});
920		2023
921	$self->{_coro}{$coro+0} = $coro;	2024	$self->{_coro}{$coro+0} = $coro;
		2025
		2026	$coro
922	}	2027	}
923		2028
924	cf::client->attach (	2029	cf::client->attach (
925	on_destroy => sub {	2030	on_destroy => sub {
926	my ($ns) = @_;	2031	my ($ns) = @_;
…		…
1090		2195
1091	{	2196	{
1092	my $path = cf::localdir . "/database.pst";	2197	my $path = cf::localdir . "/database.pst";
1093		2198
1094	sub db_load() {	2199	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };	2200	$DB = stat $path ? Storable::retrieve $path : { };
1097	}	2201	}
1098		2202
1099	my $pid;	2203	my $pid;
1100		2204
1101	sub db_save() {	2205	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;	2206	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {	2207	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;	2208	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";	2209	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;	2210	rename "$path~", $path;
…		…
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2258	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2259	or return;
1157		2260
1158	local $/;	2261	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2262	*CFG = YAML::Syck::Load <$fh>;
		2263
		2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2265
		2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2268
		2269	if (exists $CFG{mlockall}) {
		2270	eval {
		2271	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2272	and die "WARNING: m(un)lockall failed: $!\n";
		2273	};
		2274	warn $@ if $@;
		2275	}
1160	}	2276	}
1161		2277
1162	sub main {	2278	sub main {
		2279	# we must not ever block the main coroutine
		2280	local $Coro::idle = sub {
		2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2282	async { Event::one_event };
		2283	};
		2284
1163	cfg_load;	2285	cfg_load;
1164	db_load;	2286	db_load;
1165	load_extensions;	2287	load_extensions;
1166	Event::loop;	2288	Event::loop;
1167	}	2289	}
1168		2290
1169	#############################################################################	2291	#############################################################################
1170	# initialisation	2292	# initialisation and cleanup
1171		2293
		2294	# install some emergency cleanup handlers
		2295	BEGIN {
		2296	for my $signal (qw(INT HUP TERM)) {
		2297	Event->signal (
		2298	data => WF_AUTOCANCEL,
		2299	signal => $signal,
		2300	cb => sub {
		2301	cf::cleanup "SIG$signal";
		2302	},
		2303	);
		2304	}
		2305	}
		2306
		2307	sub emergency_save() {
		2308	my $freeze_guard = cf::freeze_mainloop;
		2309
		2310	warn "enter emergency perl save\n";
		2311
		2312	cf::sync_job {
		2313	# use a peculiar iteration method to avoid tripping on perl
		2314	# refcount bugs in for. also avoids problems with players
		2315	# and maps saved/Destroyed asynchronously.
		2316	warn "begin emergency player save\n";
		2317	for my $login (keys %cf::PLAYER) {
		2318	my $pl = $cf::PLAYER{$login} or next;
		2319	$pl->valid or next;
		2320	$pl->save;
		2321	}
		2322	warn "end emergency player save\n";
		2323
		2324	warn "begin emergency map save\n";
		2325	for my $path (keys %cf::MAP) {
		2326	my $map = $cf::MAP{$path} or next;
		2327	$map->valid or next;
		2328	$map->save;
		2329	}
		2330	warn "end emergency map save\n";
		2331	};
		2332
		2333	warn "leave emergency perl save\n";
		2334	}
		2335
1172	sub _perl_reload(&) {	2336	sub reload() {
1173	my ($msg) = @_;	2337	# can/must only be called in main
		2338	if ($Coro::current != $Coro::main) {
		2339	warn "can only reload from main coroutine\n";
		2340	return;
		2341	}
1174		2342
1175	$msg->("reloading...");	2343	warn "reloading...";
		2344
		2345	my $guard = freeze_mainloop;
		2346	cf::emergency_save;
1176		2347
1177	eval {	2348	eval {
		2349	# if anything goes wrong in here, we should simply crash as we already saved
		2350
1178	# cancel all watchers	2351	# cancel all watchers
1179	for (Event::all_watchers) {	2352	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2353	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2354	}
1182		2355
		2356	# cancel all extension coros
		2357	$_->cancel for values %EXT_CORO;
		2358	%EXT_CORO = ();
		2359
1183	# unload all extensions	2360	# unload all extensions
1184	for (@exts) {	2361	for (@exts) {
1185	$msg->("unloading <$_>");	2362	warn "unloading <$_>";
1186	unload_extension $_;	2363	unload_extension $_;
1187	}	2364	}
1188		2365
1189	# unload all modules loaded from $LIBDIR	2366	# unload all modules loaded from $LIBDIR
1190	while (my ($k, $v) = each %INC) {	2367	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2369
1193	$msg->("removing <$k>");	2370	warn "removing <$k>";
1194	delete $INC{$k};	2371	delete $INC{$k};
1195		2372
1196	$k =~ s/\.pm$//;	2373	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2374	$k =~ s/\//::/g;
1198		2375
…		…
1203	Symbol::delete_package $k;	2380	Symbol::delete_package $k;
1204	}	2381	}
1205		2382
1206	# sync database to disk	2383	# sync database to disk
1207	cf::db_sync;	2384	cf::db_sync;
		2385	IO::AIO::flush;
1208		2386
1209	# get rid of safe::, as good as possible	2387	# get rid of safe::, as good as possible
1210	Symbol::delete_package "safe::$_"	2388	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2390
1213	# remove register_script_function callbacks	2391	# remove register_script_function callbacks
1214	# TODO	2392	# TODO
1215		2393
1216	# unload cf.pm "a bit"	2394	# unload cf.pm "a bit"
…		…
1219	# don't, removes xs symbols, too,	2397	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2398	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2399	#Symbol::delete_package __PACKAGE__;
1222		2400
1223	# reload cf.pm	2401	# reload cf.pm
1224	$msg->("reloading cf.pm");	2402	warn "reloading cf.pm";
1225	require cf;	2403	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2405
1228	# load config and database again	2406	# load config and database again
1229	cf::cfg_load;	2407	cf::cfg_load;
1230	cf::db_load;	2408	cf::db_load;
1231		2409
1232	# load extensions	2410	# load extensions
1233	$msg->("load extensions");	2411	warn "load extensions";
1234	cf::load_extensions;	2412	cf::load_extensions;
1235		2413
1236	# reattach attachments to objects	2414	# reattach attachments to objects
1237	$msg->("reattach");	2415	warn "reattach";
1238	_global_reattach;	2416	_global_reattach;
		2417	reattach $_ for values %MAP;
1239	};	2418	};
1240	$msg->($@) if $@;
1241		2419
1242	$msg->("reloaded");	2420	if ($@) {
		2421	warn $@;
		2422	warn "error while reloading, exiting.";
		2423	exit 1;
		2424	}
		2425
		2426	warn "reloaded successfully";
1243	};	2427	};
1244		2428
1245	sub perl_reload() {	2429	#############################################################################
1246	_perl_reload {	2430
1247	warn $_[0];	2431	unless ($LINK_MAP) {
1248	print "$_[0]\n";	2432	$LINK_MAP = cf::map::new;
1249	};	2433
		2434	$LINK_MAP->width (41);
		2435	$LINK_MAP->height (41);
		2436	$LINK_MAP->alloc;
		2437	$LINK_MAP->path ("{link}");
		2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2440
		2441	# dirty hack because... archetypes are not yet loaded
		2442	Event->timer (
		2443	after => 10,
		2444	cb => sub {
		2445	$_[0]->w->cancel;
		2446
		2447	# provide some exits "home"
		2448	my $exit = cf::object::new "exit";
		2449
		2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2453
		2454	$LINK_MAP->insert ($exit->clone, 19, 19);
		2455	$LINK_MAP->insert ($exit->clone, 19, 20);
		2456	$LINK_MAP->insert ($exit->clone, 19, 21);
		2457	$LINK_MAP->insert ($exit->clone, 20, 19);
		2458	$LINK_MAP->insert ($exit->clone, 20, 21);
		2459	$LINK_MAP->insert ($exit->clone, 21, 19);
		2460	$LINK_MAP->insert ($exit->clone, 21, 20);
		2461	$LINK_MAP->insert ($exit->clone, 21, 21);
		2462
		2463	$exit->destroy;
		2464	});
		2465
		2466	$LINK_MAP->{deny_save} = 1;
		2467	$LINK_MAP->{deny_reset} = 1;
		2468
		2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1250	}	2470	}
1251		2471
1252	register "<global>", __PACKAGE__;	2472	register "<global>", __PACKAGE__;
1253		2473
1254	register_command "perl-reload" => sub {	2474	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
1256		2476
1257	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	2478	$who->message ("start of reload.");
1259	warn $_[0];	2479	reload;
1260	$who->message ($_[0]);	2480	$who->message ("end of reload.");
1261	};
1262	}	2481	}
1263	};	2482	};
1264		2483
1265	unshift @INC, $LIBDIR;	2484	unshift @INC, $LIBDIR;
1266		2485
1267	$TICK_WATCHER = Event->timer (	2486	$TICK_WATCHER = Event->timer (
		2487	reentrant => 0,
1268	prio => 0,	2488	prio => 0,
1269	at => $NEXT_TICK || 1,	2489	at => $NEXT_TICK || $TICK,
1270	data => WF_AUTOCANCEL,	2490	data => WF_AUTOCANCEL,
1271	cb => sub {	2491	cb => sub {
1272	cf::server_tick; # one server iteration	2492	cf::server_tick; # one server iteration
1273		2493	$RUNTIME += $TICK;
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;	2494	$NEXT_TICK += $TICK;
1276		2495
		2496	$WAIT_FOR_TICK->broadcast;
		2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2498
1277	# if we are delayed by four ticks or more, skip them all	2499	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1279		2501
1280	$TICK_WATCHER->at ($NEXT_TICK);	2502	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	2503	$TICK_WATCHER->start;
1282	},	2504	},
1283	);	2505	);
1284		2506
1285	IO::AIO::max_poll_time $TICK * 0.2;	2507	IO::AIO::max_poll_time $TICK * 0.2;
1286		2508
		2509	Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	2510	fd => IO::AIO::poll_fileno,
1288	poll => 'r',	2511	poll => 'r',
1289	prio => 5,	2512	prio => 5,
1290	data => WF_AUTOCANCEL,	2513	data => WF_AUTOCANCEL,
1291	cb => \&IO::AIO::poll_cb);	2514	cb => \&IO::AIO::poll_cb,
		2515	);
		2516
		2517	Event->timer (
		2518	data => WF_AUTOCANCEL,
		2519	after => 0,
		2520	interval => 10,
		2521	cb => sub {
		2522	(Coro::unblock_sub {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	})->();
		2526	},
		2527	);
		2528
		2529	END { cf::emergency_save }
1292		2530
1293	1	2531	1
1294		2532

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