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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.103 by root, Sat Dec 30 10:16:11 2006 UTC vs.
Revision 1.162 by root, Thu Jan 11 00:41:08 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.3 ();
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 (2); # run main coroutine ("the server") with very high priority	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;
…		…
44	our %CFG;	52	our %CFG;
45		53
46	our $UPTIME; $UPTIME ||= time;	54	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	55	our $RUNTIME;
48		56
		57	our %PLAYER; # all users
49	our %MAP; # all maps	58	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	59	our $LINK_MAP; # the special {link} map
51	our $FREEZE;	60	our $RANDOM_MAPS = cf::localdir . "/random";
		61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
52		64
53	binmode STDOUT;	65	binmode STDOUT;
54	binmode STDERR;	66	binmode STDERR;
55		67
56	# read virtual server time, if available	68	# read virtual server time, if available
…		…
62		74
63	mkdir cf::localdir;	75	mkdir cf::localdir;
64	mkdir cf::localdir . "/" . cf::playerdir;	76	mkdir cf::localdir . "/" . cf::playerdir;
65	mkdir cf::localdir . "/" . cf::tmpdir;	77	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;	78	mkdir cf::localdir . "/" . cf::uniquedir;
		79	mkdir $RANDOM_MAPS;
67		80
68	our %EXT_CORO;	81	# a special map that is always available
		82	our $LINK_MAP;
		83	our $EMERGENCY_POSITION;
69		84
70	#############################################################################	85	#############################################################################
71		86
72	=head2 GLOBAL VARIABLES	87	=head2 GLOBAL VARIABLES
73		88
…		…
97		112
98	=item %cf::CFG	113	=item %cf::CFG
99		114
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	115	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	from wherever your confdir points to.	116	from wherever your confdir points to.
		117
		118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		119
		120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		122	processing has been done. Call C<< ->wait >> on them to maximise the
		123	window of cpu time available, or simply to synchronise to the server tick.
102		124
103	=back	125	=back
104		126
105	=cut	127	=cut
106		128
…		…
110	utf8::encode $msg;	132	utf8::encode $msg;
111		133
112	$msg .= "\n"	134	$msg .= "\n"
113	unless $msg =~ /\n$/;	135	unless $msg =~ /\n$/;
114		136
115	LOG llevError, "cfperl: $msg";	137	LOG llevError, $msg;
116	};	138	};
117	}	139	}
118		140
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
138		160
139	$Event::DIED = sub {	161	$Event::DIED = sub {
140	warn "error in event callback: @_";	162	warn "error in event callback: @_";
141	};	163	};
142		164
143	my %ext_pkg;
144	my @exts;
145	my @hook;
146
147	=head2 UTILITY FUNCTIONS	165	=head2 UTILITY FUNCTIONS
148		166
149	=over 4	167	=over 4
150		168
		169	=item dumpval $ref
		170
151	=cut	171	=cut
		172
		173	sub dumpval {
		174	eval {
		175	local $SIG{__DIE__};
		176	my $d;
		177	if (1) {
		178	$d = new Data::Dumper([$_[0]], ["*var"]);
		179	$d->Terse(1);
		180	$d->Indent(2);
		181	$d->Quotekeys(0);
		182	$d->Useqq(1);
		183	#$d->Bless(...);
		184	$d->Seen($_[1]) if @_ > 1;
		185	$d = $d->Dump();
		186	}
		187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		188	$d
		189	} || "[unable to dump $_[0]: '$@']";
		190	}
152		191
153	use JSON::Syck (); # TODO# replace by JSON::PC once working	192	use JSON::Syck (); # TODO# replace by JSON::PC once working
154		193
155	=item $ref = cf::from_json $json	194	=item $ref = cf::from_json $json
156		195
…		…
172	sub to_json($) {	211	sub to_json($) {
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]	213	JSON::Syck::Dump $_[0]
175	}	214	}
176		215
		216	=item cf::lock_wait $string
		217
		218	Wait until the given lock is available. See cf::lock_acquire.
		219
		220	=item my $lock = cf::lock_acquire $string
		221
		222	Wait until the given lock is available and then acquires it and returns
		223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		224	for example when the coroutine gets canceled), the lock is automatically
		225	returned.
		226
		227	Lock names should begin with a unique identifier (for example, cf::map::find
		228	uses map_find and cf::map::load uses map_load).
		229
		230	=cut
		231
		232	our %LOCK;
		233
		234	sub lock_wait($) {
		235	my ($key) = @_;
		236
		237	# wait for lock, if any
		238	while ($LOCK{$key}) {
		239	push @{ $LOCK{$key} }, $Coro::current;
		240	Coro::schedule;
		241	}
		242	}
		243
		244	sub lock_acquire($) {
		245	my ($key) = @_;
		246
		247	# wait, to be sure we are not locked
		248	lock_wait $key;
		249
		250	$LOCK{$key} = [];
		251
		252	Coro::guard {
		253	# wake up all waiters, to be on the safe side
		254	$_->ready for @{ delete $LOCK{$key} };
		255	}
		256	}
		257
		258	sub freeze_mainloop {
		259	return unless $TICK_WATCHER->is_active;
		260
		261	my $guard = Coro::guard { $TICK_WATCHER->start };
		262	$TICK_WATCHER->stop;
		263	$guard
		264	}
		265
		266	=item cf::async { BLOCK }
		267
		268	Currently the same as Coro::async_pool, meaning you cannot use
		269	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		270	thing you are allowed to do is call C<prio> on it.
		271
		272	=cut
		273
		274	BEGIN { *async = \&Coro::async_pool }
		275
		276	=item cf::sync_job { BLOCK }
		277
		278	The design of crossfire+ requires that the main coro ($Coro::main) is
		279	always able to handle events or runnable, as crossfire+ is only partly
		280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		281
		282	If it must be done, put the blocking parts into C<sync_job>. This will run
		283	the given BLOCK in another coroutine while waiting for the result. The
		284	server will be frozen during this time, so the block should either finish
		285	fast or be very important.
		286
		287	=cut
		288
		289	sub sync_job(&) {
		290	my ($job) = @_;
		291
		292	if ($Coro::current == $Coro::main) {
		293	# this is the main coro, too bad, we have to block
		294	# till the operation succeeds, freezing the server :/
		295
		296	# TODO: use suspend/resume instead
		297	# (but this is cancel-safe)
		298	my $freeze_guard = freeze_mainloop;
		299
		300	my $busy = 1;
		301	my @res;
		302
		303	(async {
		304	@res = eval { $job->() };
		305	warn $@ if $@;
		306	undef $busy;
		307	})->prio (Coro::PRIO_MAX);
		308
		309	while ($busy) {
		310	Coro::cede or Event::one_event;
		311	}
		312
		313	wantarray ? @res : $res[0]
		314	} else {
		315	# we are in another coroutine, how wonderful, everything just works
		316
		317	$job->()
		318	}
		319	}
		320
177	=item $coro = cf::coro { BLOCK }	321	=item $coro = cf::async_ext { BLOCK }
178		322
179	Creates and returns a new coro. This coro is automcatially being canceled	323	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	324	extension calling this is being unloaded.
181		325
182	=cut	326	=cut
183		327
184	sub coro(&) {	328	sub async_ext(&) {
185	my $cb = shift;	329	my $cb = shift;
186		330
187	my $coro; $coro = async {	331	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		332
194	$coro->on_destroy (sub {	333	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	334	delete $EXT_CORO{$coro+0};
196	});	335	});
197	$EXT_CORO{$coro+0} = $coro;	336	$EXT_CORO{$coro+0} = $coro;
198		337
199	$coro	338	$coro
200	}	339	}
201		340
		341	sub write_runtime {
		342	my $runtime = cf::localdir . "/runtime";
		343
		344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		345	or return;
		346
		347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		349	and return;
		350
		351	aio_fsync $fh
		352	and return;
		353
		354	close $fh
		355	or return;
		356
		357	aio_rename "$runtime~", $runtime
		358	and return;
		359
		360	1
		361	}
		362
202	=back	363	=back
203		364
204	=cut	365	=cut
		366
		367	#############################################################################
		368
		369	package cf::path;
		370
		371	use overload
		372	'""' => \&as_string;
		373
		374	# used to convert map paths into valid unix filenames by repalcing / by ∕
		375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		376
		377	sub register {
		378	my ($pkg, $prefix) = @_;
		379
		380	$EXT_MAP{$prefix} = $pkg;
		381	}
		382
		383	sub new {
		384	my ($class, $path, $base) = @_;
		385
		386	return $path if ref $path;
		387
		388	my $self = {};
		389
		390	# {... are special paths that are not being touched
		391	# ?xxx/... are special absolute paths
		392	# ?random/... random maps
		393	# /! non-realised random map exit
		394	# /... normal maps
		395	# ~/... per-player maps without a specific player (DO NOT USE)
		396	# ~user/... per-player map of a specific user
		397
		398	$path =~ s/$PATH_SEP/\//go;
		399
		400	if ($path =~ /^{/) {
		401	# fine as it is
		402	} else {
		403	if ($path =~ s{^~([^/]+)?}{}) {
		404	# ~user
		405	$self->{user_rel} = 1;
		406
		407	if (defined $1) {
		408	$self->{user} = $1;
		409	} elsif ($base =~ m{^~([^/]+)/}) {
		410	$self->{user} = $1;
		411	} else {
		412	warn "cannot resolve user-relative path without user <$path,$base>\n";
		413	}
		414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
		415	# ?...
		416	$self->{ext} = $1;
		417	if (my $ext = $EXT_MAP{$1}) {
		418	bless $self, $ext;
		419	}
		420	} elsif ($path =~ /^\//) {
		421	# /...
		422	# already absolute
		423	} else {
		424	# relative
		425	$base =~ s{[^/]+/?$}{};
		426	return $class->new ("$base/$path");
		427	}
		428
		429	for ($path) {
		430	redo if s{/\.?/}{/};
		431	redo if s{/[^/]+/\.\./}{/};
		432	}
		433	}
		434
		435	$self->{path} = $path;
		436
		437	if ("HASH" eq ref $self) {
		438	bless $self, $class;
		439	} else {
		440	$self->init;
		441	}
		442
		443	for my $ext (values %EXT_MAP) {
		444	if (my $subst = $ext->substitute ($self)) {
		445	return $subst;
		446	}
		447	}
		448
		449	$self
		450	}
		451
		452	sub init {
		453	# nop
		454	}
		455
		456	sub substitute {
		457	()
		458	}
		459
		460	# the name / primary key / in-game path
		461	sub as_string {
		462	my ($self) = @_;
		463
		464	$self->{user_rel} ? "~$self->{user}$self->{path}"
		465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
		466	: $self->{path}
		467	}
		468
		469	# the displayed name, this is a one way mapping
		470	sub visible_name {
		471	&as_string
		472	}
		473
		474	# escape the /'s in the path
		475	sub _escaped_path {
		476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		477
		478	$path
		479	}
		480
		481	# the original (read-only) location
		482	sub load_path {
		483	my ($self) = @_;
		484
		485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		486	}
		487
		488	# the temporary/swap location
		489	sub save_path {
		490	my ($self) = @_;
		491
		492	$self->{user_rel}
		493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		495	}
		496
		497	# the unique path, undef == no special unique path
		498	sub uniq_path {
		499	my ($self) = @_;
		500
		501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		502	}
		503
		504	# this is somewhat ugly, but style maps do need special treatment
		505	sub is_style_map {
		506	$_[0]{path} =~ m{^/styles/}
		507	}
		508
		509	sub load_orig {
		510	my ($self) = @_;
		511
		512	&cf::map::load_map_header ($self->load_path)
		513	}
		514
		515	sub load_temp {
		516	my ($self) = @_;
		517
		518	&cf::map::load_map_header ($self->save_path)
		519	}
		520
		521	package cf;
205		522
206	#############################################################################	523	#############################################################################
207		524
208	=head2 ATTACHABLE OBJECTS	525	=head2 ATTACHABLE OBJECTS
209		526
…		…
563	);	880	);
564		881
565	sub object_freezer_save {	882	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	883	my ($filename, $rdata, $objs) = @_;
567		884
		885	sync_job {
568	if (length $$rdata) {	886	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	887	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	888	$filename, length $$rdata, scalar @$objs;
571		889
572	if (open my $fh, ">:raw", "$filename~") {	890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	891	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		893	aio_fsync $fh;
580	close $fh;	894	close $fh;
		895
		896	if (@$objs) {
		897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		898	chmod SAVE_MODE, $fh;
		899	my $data = Storable::nfreeze { version => 1, objs => $objs };
		900	aio_write $fh, 0, (length $data), $data, 0;
		901	aio_fsync $fh;
		902	close $fh;
581	rename "$filename.pst~", "$filename.pst";	903	aio_rename "$filename.pst~", "$filename.pst";
		904	}
		905	} else {
		906	aio_unlink "$filename.pst";
		907	}
		908
		909	aio_rename "$filename~", $filename;
582	} else {	910	} else {
583	unlink "$filename.pst";	911	warn "FATAL: $filename~: $!\n";
584	}	912	}
585
586	rename "$filename~", $filename;
587	} else {	913	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	914	aio_unlink $filename;
592	unlink "$filename.pst";	915	aio_unlink "$filename.pst";
		916	}
593	}	917	}
594	}	918	}
595		919
596	sub object_freezer_as_string {	920	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	921	my ($rdata, $objs) = @_;
…		…
602	}	926	}
603		927
604	sub object_thawer_load {	928	sub object_thawer_load {
605	my ($filename) = @_;	929	my ($filename) = @_;
606		930
607	local $/;	931	my ($data, $av);
608		932
609	my $av;	933	(aio_load $filename, $data) >= 0
		934	or return;
610		935
611	#TODO: use sysread etc.	936	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	937	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	938	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	939	$av = eval { (Storable::thaw $av)->{objs} };
616	}	940	}
		941
		942	warn sprintf "loading %s (%d)\n",
		943	$filename, length $data, scalar @{$av || []};#d#
617	return ($data, $av);	944	return ($data, $av);
618	}
619
620	()
621	}	945	}
622		946
623	#############################################################################	947	#############################################################################
624	# command handling &c	948	# command handling &c
625		949
…		…
649	=cut	973	=cut
650		974
651	sub register_extcmd {	975	sub register_extcmd {
652	my ($name, $cb) = @_;	976	my ($name, $cb) = @_;
653		977
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	978	$EXTCMD{$name} = $cb;
658	}	979	}
659		980
660	cf::player->attach (	981	cf::player->attach (
661	on_command => sub {	982	on_command => sub {
662	my ($pl, $name, $params) = @_;	983	my ($pl, $name, $params) = @_;
…		…
675		996
676	my $msg = eval { from_json $buf };	997	my $msg = eval { from_json $buf };
677		998
678	if (ref $msg) {	999	if (ref $msg) {
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	1001	if (my %reply = $cb->($pl, $msg)) {
681	$pl->ext_reply ($msg->{msgid}, %reply);	1002	$pl->ext_reply ($msg->{msgid}, %reply);
682	}	1003	}
683	}	1004	}
684	} else {	1005	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
687		1008
688	cf::override;	1009	cf::override;
689	},	1010	},
690	);	1011	);
691		1012
692	sub register {
693	my ($base, $pkg) = @_;
694
695	#TODO
696	}
697
698	sub load_extension {	1013	sub load_extension {
699	my ($path) = @_;	1014	my ($path) = @_;
700		1015
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
702	my $base = $1;	1017	my $base = $1;
703	my $pkg = $1;	1018	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;	1019	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";	1020	$pkg = "ext::$pkg";
706		1021
707	warn "loading '$path' into '$pkg'\n";	1022	warn "... loading '$path' into '$pkg'\n";
708		1023
709	open my $fh, "<:utf8", $path	1024	open my $fh, "<:utf8", $path
710	or die "$path: $!";	1025	or die "$path: $!";
711		1026
712	my $source =	1027	my $source =
…		…
717		1032
718	eval $source	1033	eval $source
719	or die $@ ? "$path: $@\n"	1034	or die $@ ? "$path: $@\n"
720	: "extension disabled.\n";	1035	: "extension disabled.\n";
721		1036
722	push @exts, $pkg;	1037	push @EXTS, $pkg;
723	$ext_pkg{$base} = $pkg;
724
725	# no strict 'refs';
726	# @{"$pkg\::ISA"} = ext::;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }
741
742	# remove commands
743	for my $name (keys %COMMAND) {
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
745
746	if (@cb) {
747	$COMMAND{$name} = \@cb;
748	} else {
749	delete $COMMAND{$name};
750	}
751	}
752
753	# remove extcmds
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
755	delete $EXTCMD{$name};
756	}
757
758	if (my $cb = $pkg->can ("unload")) {
759	eval {
760	$cb->($pkg);
761	1
762	} or warn "$pkg unloaded, but with errors: $@";
763	}
764
765	Symbol::delete_package $pkg;
766	}	1038	}
767		1039
768	sub load_extensions {	1040	sub load_extensions {
769	for my $ext (<$LIBDIR/*.ext>) {	1041	for my $ext (<$LIBDIR/*.ext>) {
770	next unless -r $ext;	1042	next unless -r $ext;
…		…
788	};	1060	};
789		1061
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
791		1063
792	#############################################################################	1064	#############################################################################
793	# load/save perl data associated with player->ob objects
794
795	sub all_objects(@) {
796	@_, map all_objects ($_->inv), @_
797	}
798
799	# TODO: compatibility cruft, remove when no longer needed
800	cf::player->attach (
801	on_load => sub {
802	my ($pl, $path) = @_;
803
804	for my $o (all_objects $pl->ob) {
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {
806	$o->set_ob_key_value ("_perl_data");
807
808	%$o = %{ Storable::thaw pack "H*", $value };
809	}
810	}
811	},
812	);
813
814	#############################################################################
815		1065
816	=head2 CORE EXTENSIONS	1066	=head2 CORE EXTENSIONS
817		1067
818	Functions and methods that extend core crossfire objects.	1068	Functions and methods that extend core crossfire objects.
819		1069
		1070	=cut
		1071
		1072	package cf::player;
		1073
		1074	use Coro::AIO;
		1075
820	=head3 cf::player	1076	=head3 cf::player
821		1077
822	=over 4	1078	=over 4
823		1079
824	=item cf::player::exists $login	1080	=item cf::player::find $login
825		1081
826	Returns true when the given account exists.	1082	Returns the given player object, loading it if necessary (might block).
827		1083
828	=cut	1084	=cut
829		1085
830	sub cf::player::exists($) {	1086	sub playerdir($) {
831	cf::player::find $_[0]	1087	cf::localdir
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1088	. "/"
		1089	. cf::playerdir
		1090	. "/"
		1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1092	}
		1093
		1094	sub path($) {
		1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1096
		1097	(playerdir $login) . "/$login.pl"
		1098	}
		1099
		1100	sub find_active($) {
		1101	$cf::PLAYER{$_[0]}
		1102	and $cf::PLAYER{$_[0]}->active
		1103	and $cf::PLAYER{$_[0]}
		1104	}
		1105
		1106	sub exists($) {
		1107	my ($login) = @_;
		1108
		1109	$cf::PLAYER{$login}
		1110	or cf::sync_job { !aio_stat $login }
		1111	}
		1112
		1113	sub find($) {
		1114	return $cf::PLAYER{$_[0]} || do {
		1115	my $login = $_[0];
		1116
		1117	my $guard = cf::lock_acquire "user_find:$login";
		1118
		1119	$cf::PLAYER{$_[0]} || do {
		1120	my $pl = load_pl path $login
		1121	or return;
		1122	$cf::PLAYER{$login} = $pl
		1123	}
		1124	}
		1125	}
		1126
		1127	sub save($) {
		1128	my ($pl) = @_;
		1129
		1130	return if $pl->{deny_save};
		1131
		1132	my $path = path $pl;
		1133	my $guard = cf::lock_acquire "user_save:$path";
		1134
		1135	return if $pl->{deny_save};
		1136
		1137	aio_mkdir playerdir $pl, 0770;
		1138	$pl->{last_save} = $cf::RUNTIME;
		1139
		1140	$pl->save_pl ($path);
		1141	Coro::cede;
		1142	}
		1143
		1144	sub new($) {
		1145	my ($login) = @_;
		1146
		1147	my $self = create;
		1148
		1149	$self->ob->name ($login);
		1150	$self->{deny_save} = 1;
		1151
		1152	$cf::PLAYER{$login} = $self;
		1153
		1154	$self
		1155	}
		1156
		1157	=item $pl->quit_character
		1158
		1159	Nukes the player without looking back. If logged in, the connection will
		1160	be destroyed. May block for a long time.
		1161
		1162	=cut
		1163
		1164	sub quit_character {
		1165	my ($pl) = @_;
		1166
		1167	$pl->{deny_save} = 1;
		1168	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1169
		1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1171	$pl->deactivate;
		1172	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1173	$pl->ns->destroy if $pl->ns;
		1174
		1175	my $path = playerdir $pl;
		1176	my $temp = "$path~$cf::RUNTIME~deleting~";
		1177	aio_rename $path, $temp;
		1178	delete $cf::PLAYER{$pl->ob->name};
		1179	$pl->destroy;
		1180	IO::AIO::aio_rmtree $temp;
		1181	}
		1182
		1183	=item cf::player::list_logins
		1184
		1185	Returns am arrayref of all valid playernames in the system, can take a
		1186	while and may block, so not sync_job-capable, ever.
		1187
		1188	=cut
		1189
		1190	sub list_logins {
		1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1192	or return [];
		1193
		1194	my @logins;
		1195
		1196	for my $login (@$dirs) {
		1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1198	aio_read $fh, 0, 512, my $buf, 0 or next;
		1199	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1200
		1201	utf8::decode $login;
		1202	push @logins, $login;
		1203	}
		1204
		1205	\@logins
		1206	}
		1207
		1208	=item $player->maps
		1209
		1210	Returns an arrayref of cf::path's of all maps that are private for this
		1211	player. May block.
		1212
		1213	=cut
		1214
		1215	sub maps($) {
		1216	my ($pl) = @_;
		1217
		1218	my $files = aio_readdir playerdir $pl
		1219	or return;
		1220
		1221	my @paths;
		1222
		1223	for (@$files) {
		1224	utf8::decode $_;
		1225	next if /\.(?:pl|pst)$/;
		1226	next unless /^$PATH_SEP/o;
		1227
		1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1229	}
		1230
		1231	\@paths
833	}	1232	}
834		1233
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	1234	=item $player->ext_reply ($msgid, $msgtype, %msg)
836		1235
837	Sends an ext reply to the player.	1236	Sends an ext reply to the player.
838		1237
839	=cut	1238	=cut
840		1239
841	sub cf::player::ext_reply($$$%) {	1240	sub ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;	1241	my ($self, $id, %msg) = @_;
843		1242
844	$msg{msgid} = $id;	1243	$msg{msgid} = $id;
845		1244
846	$self->send ("ext " . to_json \%msg);	1245	$self->send ("ext " . cf::to_json \%msg);
847	}	1246	}
		1247
		1248	package cf;
		1249
		1250	=back
		1251
		1252
		1253	=head3 cf::map
		1254
		1255	=over 4
		1256
		1257	=cut
		1258
		1259	package cf::map;
		1260
		1261	use Fcntl;
		1262	use Coro::AIO;
		1263
		1264	our $MAX_RESET = 3600;
		1265	our $DEFAULT_RESET = 3000;
		1266
		1267	sub generate_random_map {
		1268	my ($path, $rmp) = @_;
		1269
		1270	# mit "rum" bekleckern, nicht
		1271	cf::map::_create_random_map (
		1272	$path,
		1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1276	$rmp->{exit_on_final_map},
		1277	$rmp->{xsize}, $rmp->{ysize},
		1278	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1279	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1280	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1281	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1283	(cf::region::find $rmp->{region}), $rmp->{custom}
		1284	)
		1285	}
		1286
		1287	# and all this just because we cannot iterate over
		1288	# all maps in C++...
		1289	sub change_all_map_light {
		1290	my ($change) = @_;
		1291
		1292	$_->change_map_light ($change)
		1293	for grep $_->outdoor, values %cf::MAP;
		1294	}
		1295
		1296	sub load_map_header($) {
		1297	my ($path) = @_;
		1298
		1299	utf8::encode $path;
		1300	aio_open $path, O_RDONLY, 0
		1301	or return;
		1302
		1303	my $map = cf::map::new
		1304	or return;
		1305
		1306	# for better error messages only, will be overwritten later
		1307	$map->path ($path);
		1308
		1309	$map->load_header ($path)
		1310	or return;
		1311
		1312	$map->{load_path} = $path;
		1313
		1314	$map
		1315	}
		1316
		1317	sub find;
		1318	sub find {
		1319	my ($path, $origin) = @_;
		1320
		1321	#warn "find<$path,$origin>\n";#d#
		1322
		1323	$path = new cf::path $path, $origin && $origin->path;
		1324	my $key = $path->as_string;
		1325
		1326	cf::lock_wait "map_find:$key";
		1327
		1328	$cf::MAP{$key} || do {
		1329	my $guard = cf::lock_acquire "map_find:$key";
		1330
		1331	# do it the slow way
		1332	my $map = $path->load_temp;
		1333
		1334	Coro::cede;
		1335
		1336	if ($map) {
		1337	$map->last_access ((delete $map->{last_access})
		1338	|| $cf::RUNTIME); #d#
		1339	# safety
		1340	$map->{instantiate_time} = $cf::RUNTIME
		1341	if $map->{instantiate_time} > $cf::RUNTIME;
		1342	} else {
		1343	$map = $path->load_orig
		1344	or return;
		1345
		1346	$map->{load_original} = 1;
		1347	$map->{instantiate_time} = $cf::RUNTIME;
		1348	$map->last_access ($cf::RUNTIME);
		1349	$map->instantiate;
		1350
		1351	# per-player maps become, after loading, normal maps
		1352	$map->per_player (0) if $path->{user_rel};
		1353	}
		1354
		1355	$map->path ($key);
		1356	$map->{path} = $path;
		1357	$map->{last_save} = $cf::RUNTIME;
		1358
		1359	Coro::cede;
		1360
		1361	if ($map->should_reset) {
		1362	$map->reset;
		1363	undef $guard;
		1364	$map = find $path
		1365	or return;
		1366	}
		1367
		1368	$cf::MAP{$key} = $map
		1369	}
		1370	}
		1371
		1372	sub load {
		1373	my ($self) = @_;
		1374
		1375	my $path = $self->{path};
		1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1377
		1378	return if $self->in_memory != cf::MAP_SWAPPED;
		1379
		1380	$self->in_memory (cf::MAP_LOADING);
		1381
		1382	$self->alloc;
		1383	$self->load_objects ($self->{load_path}, 1)
		1384	or return;
		1385
		1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1387	if delete $self->{load_original};
		1388
		1389	if (my $uniq = $path->uniq_path) {
		1390	utf8::encode $uniq;
		1391	if (aio_open $uniq, O_RDONLY, 0) {
		1392	$self->clear_unique_items;
		1393	$self->load_objects ($uniq, 0);
		1394	}
		1395	}
		1396
		1397	Coro::cede;
		1398
		1399	# now do the right thing for maps
		1400	$self->link_multipart_objects;
		1401
		1402	if ($self->{path}->is_style_map) {
		1403	$self->{deny_save} = 1;
		1404	$self->{deny_reset} = 1;
		1405	} else {
		1406	$self->fix_auto_apply;
		1407	$self->decay_objects;
		1408	$self->update_buttons;
		1409	$self->set_darkness_map;
		1410	$self->difficulty ($self->estimate_difficulty)
		1411	unless $self->difficulty;
		1412	$self->activate;
		1413	}
		1414
		1415	Coro::cede;
		1416
		1417	$self->in_memory (cf::MAP_IN_MEMORY);
		1418	}
		1419
		1420	# find and load all maps in the 3x3 area around a map
		1421	sub load_diag {
		1422	my ($map) = @_;
		1423
		1424	my @diag; # diagonal neighbours
		1425
		1426	for (0 .. 3) {
		1427	my $neigh = $map->tile_path ($_)
		1428	or next;
		1429	$neigh = find $neigh, $map
		1430	or next;
		1431	$neigh->load;
		1432
		1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1435	}
		1436
		1437	for (@diag) {
		1438	my $neigh = find @$_
		1439	or next;
		1440	$neigh->load;
		1441	}
		1442	}
		1443
		1444	sub find_sync {
		1445	my ($path, $origin) = @_;
		1446
		1447	cf::sync_job { find $path, $origin }
		1448	}
		1449
		1450	sub do_load_sync {
		1451	my ($map) = @_;
		1452
		1453	cf::sync_job { $map->load };
		1454	}
		1455
		1456	our %MAP_PREFETCH;
		1457	our $MAP_PREFETCHER = Coro::async {
		1458	while () {
		1459	while (%MAP_PREFETCH) {
		1460	my $key = each %MAP_PREFETCH
		1461	or next;
		1462	my $path = delete $MAP_PREFETCH{$key};
		1463
		1464	my $map = find $path
		1465	or next;
		1466	$map->load;
		1467	}
		1468	Coro::schedule;
		1469	}
		1470	};
		1471
		1472	sub find_async {
		1473	my ($path, $origin) = @_;
		1474
		1475	$path = new cf::path $path, $origin && $origin->path;
		1476	my $key = $path->as_string;
		1477
		1478	if (my $map = $cf::MAP{$key}) {
		1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1480	}
		1481
		1482	$MAP_PREFETCH{$key} = $path;
		1483	$MAP_PREFETCHER->ready;
		1484
		1485	()
		1486	}
		1487
		1488	sub save {
		1489	my ($self) = @_;
		1490
		1491	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1492
		1493	$self->{last_save} = $cf::RUNTIME;
		1494
		1495	return unless $self->dirty;
		1496
		1497	my $save = $self->{path}->save_path; utf8::encode $save;
		1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1499
		1500	$self->{load_path} = $save;
		1501
		1502	return if $self->{deny_save};
		1503
		1504	local $self->{last_access} = $self->last_access;#d#
		1505
		1506	cf::async {
		1507	$_->contr->save for $self->players;
		1508	};
		1509
		1510	if ($uniq) {
		1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1512	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1513	} else {
		1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1515	}
		1516	}
		1517
		1518	sub swap_out {
		1519	my ($self) = @_;
		1520
		1521	# save first because save cedes
		1522	$self->save;
		1523
		1524	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1525
		1526	return if $self->players;
		1527	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1528	return if $self->{deny_save};
		1529
		1530	$self->clear;
		1531	$self->in_memory (cf::MAP_SWAPPED);
		1532	}
		1533
		1534	sub reset_at {
		1535	my ($self) = @_;
		1536
		1537	# TODO: safety, remove and allow resettable per-player maps
		1538	return 1e99 if $self->{path}{user_rel};
		1539	return 1e99 if $self->{deny_reset};
		1540
		1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1543
		1544	$time + $to
		1545	}
		1546
		1547	sub should_reset {
		1548	my ($self) = @_;
		1549
		1550	$self->reset_at <= $cf::RUNTIME
		1551	}
		1552
		1553	sub unlink_save {
		1554	my ($self) = @_;
		1555
		1556	utf8::encode (my $save = $self->{path}->save_path);
		1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1559	}
		1560
		1561	sub rename {
		1562	my ($self, $new_path) = @_;
		1563
		1564	$self->unlink_save;
		1565
		1566	delete $cf::MAP{$self->path};
		1567	$self->{path} = new cf::path $new_path;
		1568	$self->path ($self->{path}->as_string);
		1569	$cf::MAP{$self->path} = $self;
		1570
		1571	$self->save;
		1572	}
		1573
		1574	sub reset {
		1575	my ($self) = @_;
		1576
		1577	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1578
		1579	return if $self->players;
		1580	return if $self->{path}{user_rel};#d#
		1581
		1582	warn "resetting map ", $self->path;#d#
		1583
		1584	delete $cf::MAP{$self->path};
		1585
		1586	$_->clear_links_to ($self) for values %cf::MAP;
		1587
		1588	$self->unlink_save;
		1589	$self->destroy;
		1590	}
		1591
		1592	my $nuke_counter = "aaaa";
		1593
		1594	sub nuke {
		1595	my ($self) = @_;
		1596
		1597	$self->{deny_save} = 1;
		1598	$self->reset_timeout (1);
		1599	$self->rename ("{nuke}/" . ($nuke_counter++));
		1600	$self->reset; # polite request, might not happen
		1601	}
		1602
		1603	sub customise_for {
		1604	my ($map, $ob) = @_;
		1605
		1606	if ($map->per_player) {
		1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1608	}
		1609
		1610	$map
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of cf::path's of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	push @paths, new cf::path $_;
		1632	}
		1633
		1634	\@paths
		1635	}
		1636
		1637	package cf;
		1638
		1639	=back
		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
848		1665
849	=back	1666	=back
850		1667
851	=head3 cf::object::player	1668	=head3 cf::object::player
852		1669
…		…
890	(ref $cf::CFG{"may_$access"}	1707	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	1709	: $cf::CFG{"may_$access"})
893	}	1710	}
894		1711
		1712	=item $player_object->enter_link
		1713
		1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reaosnably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	=item $player_object->leave_link ($map, $x, $y)
		1720
		1721	Moves the player out of the specila link map onto the given map. If the
		1722	map is not valid (or omitted), the player will be moved back to the
		1723	location he/she was before the call to C<enter_link>, or, if that fails,
		1724	to the emergency map position.
		1725
		1726	Might block.
		1727
		1728	=cut
		1729
		1730	sub cf::object::player::enter_link {
		1731	my ($self) = @_;
		1732
		1733	$self->deactivate_recursive;
		1734
		1735	return if $self->map == $LINK_MAP;
		1736
		1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1738	if $self->map;
		1739
		1740	$self->enter_map ($LINK_MAP, 20, 20);
		1741	}
		1742
		1743	sub cf::object::player::leave_link {
		1744	my ($self, $map, $x, $y) = @_;
		1745
		1746	my $link_pos = delete $self->{_link_pos};
		1747
		1748	unless ($map) {
		1749	# restore original map position
		1750	($map, $x, $y) = @{ $link_pos || [] };
		1751	$map = cf::map::find $map;
		1752
		1753	unless ($map) {
		1754	($map, $x, $y) = @$EMERGENCY_POSITION;
		1755	$map = cf::map::find $map
		1756	or die "FATAL: cannot load emergency map\n";
		1757	}
		1758	}
		1759
		1760	($x, $y) = (-1, -1)
		1761	unless (defined $x) && (defined $y);
		1762
		1763	# use -1 or undef as default coordinates, not 0, 0
		1764	($x, $y) = ($map->enter_x, $map->enter_y)
		1765	if $x <=0 && $y <= 0;
		1766
		1767	$map->load;
		1768	$map->load_diag;
		1769
		1770	return unless $self->contr->active;
		1771	$self->activate_recursive;
		1772	$self->enter_map ($map, $x, $y);
		1773	}
		1774
		1775	cf::player->attach (
		1776	on_logout => sub {
		1777	my ($pl) = @_;
		1778
		1779	# abort map switching before logout
		1780	if ($pl->ob->{_link_pos}) {
		1781	cf::sync_job {
		1782	$pl->ob->leave_link
		1783	};
		1784	}
		1785	},
		1786	on_login => sub {
		1787	my ($pl) = @_;
		1788
		1789	# try to abort aborted map switching on player login :)
		1790	# should happen only on crashes
		1791	if ($pl->ob->{_link_pos}) {
		1792	$pl->ob->enter_link;
		1793	(async {
		1794	# we need this sleep as the login has a concurrent enter_exit running
		1795	# and this sleep increases chances of the player not ending up in scorn
		1796	$pl->ob->reply (undef,
		1797	"There was an internal problem at your last logout, "
		1798	. "the server will try to bring you to your intended destination in a second.",
		1799	cf::NDI_RED);
		1800	Coro::Timer::sleep 1;
		1801	$pl->ob->leave_link;
		1802	})->prio (2);
		1803	}
		1804	},
		1805	);
		1806
		1807	=item $player_object->goto ($path, $x, $y)
		1808
		1809	=cut
		1810
		1811	sub cf::object::player::goto {
		1812	my ($self, $path, $x, $y) = @_;
		1813
		1814	$path = new cf::path $path;
		1815
		1816	$self->enter_link;
		1817
		1818	(async {
		1819	my $map = cf::map::find $path->as_string;
		1820	$map = $map->customise_for ($self) if $map;
		1821
		1822	# warn "entering ", $map->path, " at ($x, $y)\n"
		1823	# if $map;
		1824
		1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1826
		1827	$self->leave_link ($map, $x, $y);
		1828	})->prio (1);
		1829	}
		1830
		1831	=item $player_object->enter_exit ($exit_object)
		1832
		1833	=cut
		1834
		1835	sub parse_random_map_params {
		1836	my ($spec) = @_;
		1837
		1838	my $rmp = { # defaults
		1839	xsize => 10,
		1840	ysize => 10,
		1841	};
		1842
		1843	for (split /\n/, $spec) {
		1844	my ($k, $v) = split /\s+/, $_, 2;
		1845
		1846	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1847	}
		1848
		1849	$rmp
		1850	}
		1851
		1852	sub prepare_random_map {
		1853	my ($exit) = @_;
		1854
		1855	# all this does is basically replace the /! path by
		1856	# a new random map path (?random/...) with a seed
		1857	# that depends on the exit object
		1858
		1859	my $rmp = parse_random_map_params $exit->msg;
		1860
		1861	if ($exit->map) {
		1862	$rmp->{region} = $exit->map->region_name;
		1863	$rmp->{origin_map} = $exit->map->path;
		1864	$rmp->{origin_x} = $exit->x;
		1865	$rmp->{origin_y} = $exit->y;
		1866	}
		1867
		1868	$rmp->{random_seed} ||= $exit->random_seed;
		1869
		1870	my $data = cf::to_json $rmp;
		1871	my $md5 = Digest::MD5::md5_hex $data;
		1872
		1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1874	aio_write $fh, 0, (length $data), $data, 0;
		1875
		1876	$exit->slaying ("?random/$md5");
		1877	$exit->msg (undef);
		1878	}
		1879	}
		1880
		1881	sub cf::object::player::enter_exit {
		1882	my ($self, $exit) = @_;
		1883
		1884	return unless $self->type == cf::PLAYER;
		1885
		1886	$self->enter_link;
		1887
		1888	(async {
		1889	$self->deactivate_recursive; # just to be sure
		1890	unless (eval {
		1891	prepare_random_map $exit
		1892	if $exit->slaying eq "/!";
		1893
		1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1896
		1897	1;
		1898	}) {
		1899	$self->message ("Something went wrong deep within the crossfire server. "
		1900	. "I'll try to bring you back to the map you were before. "
		1901	. "Please report this to the dungeon master!",
		1902	cf::NDI_UNIQUE | cf::NDI_RED);
		1903
		1904	warn "ERROR in enter_exit: $@";
		1905	$self->leave_link;
		1906	}
		1907	})->prio (1);
		1908	}
		1909
895	=head3 cf::client	1910	=head3 cf::client
896		1911
897	=over 4	1912	=over 4
898		1913
899	=item $client->send_drawinfo ($text, $flags)	1914	=item $client->send_drawinfo ($text, $flags)
…		…
942	on_reply => sub {	1957	on_reply => sub {
943	my ($ns, $msg) = @_;	1958	my ($ns, $msg) = @_;
944		1959
945	# this weird shuffling is so that direct followup queries	1960	# this weird shuffling is so that direct followup queries
946	# get handled first	1961	# get handled first
947	my $queue = delete $ns->{query_queue};	1962	my $queue = delete $ns->{query_queue}
		1963	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		1964
949	(shift @$queue)->[1]->($msg);	1965	(shift @$queue)->[1]->($msg);
950		1966
951	push @{ $ns->{query_queue} }, @$queue;	1967	push @{ $ns->{query_queue} }, @$queue;
952		1968
…		…
958	}	1974	}
959	}	1975	}
960	},	1976	},
961	);	1977	);
962		1978
963	=item $client->coro (\&cb)	1979	=item $client->async (\&cb)
964		1980
965	Create a new coroutine, running the specified callback. The coroutine will	1981	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	1982	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	1983	or loss of connection).
968		1984
969	=cut	1985	=cut
970		1986
971	sub cf::client::coro {	1987	sub cf::client::async {
972	my ($self, $cb) = @_;	1988	my ($self, $cb) = @_;
973		1989
974	my $coro; $coro = async {	1990	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		1991
981	$coro->on_destroy (sub {	1992	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	1993	delete $self->{_coro}{$coro+0};
983	});	1994	});
984		1995
…		…
1156		2167
1157	{	2168	{
1158	my $path = cf::localdir . "/database.pst";	2169	my $path = cf::localdir . "/database.pst";
1159		2170
1160	sub db_load() {	2171	sub db_load() {
1161	warn "loading database $path\n";#d# remove later
1162	$DB = stat $path ? Storable::retrieve $path : { };	2172	$DB = stat $path ? Storable::retrieve $path : { };
1163	}	2173	}
1164		2174
1165	my $pid;	2175	my $pid;
1166		2176
1167	sub db_save() {	2177	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;	2178	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {	2179	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;	2180	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";	2181	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;	2182	rename "$path~", $path;
…		…
1221	open my $fh, "<:utf8", cf::confdir . "/config"	2230	open my $fh, "<:utf8", cf::confdir . "/config"
1222	or return;	2231	or return;
1223		2232
1224	local $/;	2233	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	2234	*CFG = YAML::Syck::Load <$fh>;
		2235
		2236	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2237
		2238	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2239	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2240
		2241	if (exists $CFG{mlockall}) {
		2242	eval {
		2243	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2244	and die "WARNING: m(un)lockall failed: $!\n";
		2245	};
		2246	warn $@ if $@;
		2247	}
1226	}	2248	}
1227		2249
1228	sub main {	2250	sub main {
		2251	# we must not ever block the main coroutine
		2252	local $Coro::idle = sub {
		2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2254	async { Event::one_event };
		2255	};
		2256
1229	cfg_load;	2257	cfg_load;
1230	db_load;	2258	db_load;
1231	load_extensions;	2259	load_extensions;
1232	Event::loop;	2260	Event::loop;
1233	}	2261	}
1234		2262
1235	#############################################################################	2263	#############################################################################
1236	# initialisation	2264	# initialisation and cleanup
1237		2265
		2266	# install some emergency cleanup handlers
		2267	BEGIN {
		2268	for my $signal (qw(INT HUP TERM)) {
		2269	Event->signal (
		2270	data => WF_AUTOCANCEL,
		2271	signal => $signal,
		2272	cb => sub {
		2273	cf::cleanup "SIG$signal";
		2274	},
		2275	);
		2276	}
		2277	}
		2278
		2279	sub emergency_save() {
		2280	my $freeze_guard = cf::freeze_mainloop;
		2281
		2282	warn "enter emergency perl save\n";
		2283
		2284	cf::sync_job {
		2285	# use a peculiar iteration method to avoid tripping on perl
		2286	# refcount bugs in for. also avoids problems with players
		2287	# and maps saved/Destroyed asynchronously.
		2288	warn "begin emergency player save\n";
		2289	for my $login (keys %cf::PLAYER) {
		2290	my $pl = $cf::PLAYER{$login} or next;
		2291	$pl->valid or next;
		2292	$pl->save;
		2293	}
		2294	warn "end emergency player save\n";
		2295
		2296	warn "begin emergency map save\n";
		2297	for my $path (keys %cf::MAP) {
		2298	my $map = $cf::MAP{$path} or next;
		2299	$map->valid or next;
		2300	$map->save;
		2301	}
		2302	warn "end emergency map save\n";
		2303	};
		2304
		2305	warn "leave emergency perl save\n";
		2306	}
		2307
1238	sub _perl_reload() {	2308	sub reload() {
		2309	# can/must only be called in main
		2310	if ($Coro::current != $Coro::main) {
		2311	warn "can only reload from main coroutine\n";
		2312	return;
		2313	}
		2314
1239	warn "reloading...";	2315	warn "reloading...";
1240		2316
		2317	warn "freezing server";
		2318	my $guard = freeze_mainloop;
		2319	cf::emergency_save;
		2320
		2321	warn "sync database to disk";
		2322	cf::db_sync;
		2323	IO::AIO::flush;
		2324
1241	eval {	2325	eval {
1242	local $FREEZE = 1;	2326	# if anything goes wrong in here, we should simply crash as we already saved
1243		2327
1244	cf::emergency_save;
1245
1246	# cancel all watchers	2328	warn "cancel all watchers";
1247	for (Event::all_watchers) {	2329	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	2330	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	2331	}
1250		2332
1251	# cancel all extension coros	2333	warn "cancel all extension coros";
1252	$_->cancel for values %EXT_CORO;	2334	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	2335	%EXT_CORO = ();
1254		2336
		2337	warn "remove commands";
		2338	%COMMAND = ();
		2339
		2340	warn "remove ext commands";
		2341	%EXTCMD = ();
		2342
1255	# unload all extensions	2343	warn "unload/nuke all extensions";
1256	for (@exts) {	2344	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	2345	warn "... unloading $pkg";
1258	unload_extension $_;	2346
		2347	if (my $cb = $pkg->can ("unload")) {
		2348	eval {
		2349	$cb->($pkg);
		2350	1
		2351	} or warn "$pkg unloaded, but with errors: $@";
1259	}	2352	}
1260		2353
		2354	warn "... nuking $pkg";
		2355	Symbol::delete_package $pkg;
		2356	}
		2357
1261	# unload all modules loaded from $LIBDIR	2358	warn "unload all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	2359	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		2361
1265	warn "removing <$k>";	2362	warn "removing <$k>";
1266	delete $INC{$k};	2363	delete $INC{$k};
…		…
1273	}	2370	}
1274		2371
1275	Symbol::delete_package $k;	2372	Symbol::delete_package $k;
1276	}	2373	}
1277		2374
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	2375	warn "get rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	2376	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		2378
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	2379	warn "unload cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	2380	delete $INC{"cf.pm"};
1291		2381
1292	# don't, removes xs symbols, too,	2382	# don't, removes xs symbols, too,
1293	# and global variables created in xs	2383	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	2384	#Symbol::delete_package __PACKAGE__;
1295		2385
1296	# reload cf.pm
1297	warn "reloading cf.pm";	2386	warn "reloading cf.pm";
1298	require cf;	2387	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		2389
1301	# load config and database again	2390	warn "load config and database again";
1302	cf::cfg_load;	2391	cf::cfg_load;
1303	cf::db_load;	2392	cf::db_load;
1304		2393
1305	# load extensions
1306	warn "load extensions";	2394	warn "load extensions";
1307	cf::load_extensions;	2395	cf::load_extensions;
1308		2396
1309	# reattach attachments to objects	2397	warn "reattach attachments to objects/players";
1310	warn "reattach";
1311	_global_reattach;	2398	_global_reattach;
		2399	warn "reattach attachments to maps";
		2400	reattach $_ for values %MAP;
1312	};	2401	};
1313	warn $@ if $@;	2402
		2403	if ($@) {
		2404	warn $@;
		2405	warn "error while reloading, exiting.";
		2406	exit 1;
		2407	}
1314		2408
1315	warn "reloaded";	2409	warn "reloaded";
1316	};	2410	};
1317		2411
1318	sub perl_reload() {	2412	#############################################################################
1319	_perl_reload;
1320	}
1321		2413
1322	register "<global>", __PACKAGE__;	2414	unless ($LINK_MAP) {
		2415	$LINK_MAP = cf::map::new;
1323		2416
		2417	$LINK_MAP->width (41);
		2418	$LINK_MAP->height (41);
		2419	$LINK_MAP->alloc;
		2420	$LINK_MAP->path ("{link}");
		2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2423
		2424	# dirty hack because... archetypes are not yet loaded
		2425	Event->timer (
		2426	after => 10,
		2427	cb => sub {
		2428	$_[0]->w->cancel;
		2429
		2430	# provide some exits "home"
		2431	my $exit = cf::object::new "exit";
		2432
		2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2436
		2437	$LINK_MAP->insert ($exit->clone, 19, 19);
		2438	$LINK_MAP->insert ($exit->clone, 19, 20);
		2439	$LINK_MAP->insert ($exit->clone, 19, 21);
		2440	$LINK_MAP->insert ($exit->clone, 20, 19);
		2441	$LINK_MAP->insert ($exit->clone, 20, 21);
		2442	$LINK_MAP->insert ($exit->clone, 21, 19);
		2443	$LINK_MAP->insert ($exit->clone, 21, 20);
		2444	$LINK_MAP->insert ($exit->clone, 21, 21);
		2445
		2446	$exit->destroy;
		2447	});
		2448
		2449	$LINK_MAP->{deny_save} = 1;
		2450	$LINK_MAP->{deny_reset} = 1;
		2451
		2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2453	}
		2454
1324	register_command "perl-reload" => sub {	2455	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	2456	my ($who, $arg) = @_;
1326		2457
1327	if ($who->flag (FLAG_WIZ)) {	2458	if ($who->flag (FLAG_WIZ)) {
		2459	$who->message ("start of reload.");
		2460	reload;
1328	$who->message ("reloading...");	2461	$who->message ("end of reload.");
1329	_perl_reload;
1330	}	2462	}
1331	};	2463	};
1332		2464
1333	unshift @INC, $LIBDIR;	2465	unshift @INC, $LIBDIR;
1334		2466
1335	$TICK_WATCHER = Event->timer (	2467	$TICK_WATCHER = Event->timer (
		2468	reentrant => 0,
1336	prio => 0,	2469	prio => 0,
1337	at => $NEXT_TICK || $TICK,	2470	at => $NEXT_TICK || $TICK,
1338	data => WF_AUTOCANCEL,	2471	data => WF_AUTOCANCEL,
1339	cb => sub {	2472	cb => sub {
1340	unless ($FREEZE) {
1341	cf::server_tick; # one server iteration	2473	cf::server_tick; # one server iteration
1342	$RUNTIME += $TICK;	2474	$RUNTIME += $TICK;
1343	}
1344
1345	$NEXT_TICK += $TICK;	2475	$NEXT_TICK += $TICK;
		2476
		2477	$WAIT_FOR_TICK->broadcast;
		2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1346		2479
1347	# if we are delayed by four ticks or more, skip them all	2480	# if we are delayed by four ticks or more, skip them all
1348	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1349		2482
1350	$TICK_WATCHER->at ($NEXT_TICK);	2483	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1352	},	2485	},
1353	);	2486	);
1354		2487
1355	IO::AIO::max_poll_time $TICK * 0.2;	2488	IO::AIO::max_poll_time $TICK * 0.2;
1356		2489
		2490	Event->io (
1357	Event->io (fd => IO::AIO::poll_fileno,	2491	fd => IO::AIO::poll_fileno,
1358	poll => 'r',	2492	poll => 'r',
1359	prio => 5,	2493	prio => 5,
1360	data => WF_AUTOCANCEL,	2494	data => WF_AUTOCANCEL,
1361	cb => \&IO::AIO::poll_cb);	2495	cb => \&IO::AIO::poll_cb,
		2496	);
1362		2497
1363	# we must not ever block the main coroutine	2498	Event->timer (
1364	$Coro::idle = sub {	2499	data => WF_AUTOCANCEL,
1365	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2500	after => 0,
1366	warn "FATAL: Coro::idle was called, major BUG\n";	2501	interval => 10,
		2502	cb => sub {
1367	(Coro::unblock_sub {	2503	(Coro::unblock_sub {
1368	Event::one_event;	2504	write_runtime
		2505	or warn "ERROR: unable to write runtime file: $!";
1369	})->();	2506	})->();
1370	};	2507	},
		2508	);
		2509
		2510	END { cf::emergency_save }
1371		2511
1372	1	2512	1
1373		2513

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