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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.104 by root, Sat Dec 30 16:56:16 2006 UTC vs.
Revision 1.165 by root, Fri Jan 12 22:09:22 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	$self->{user_rel} || $self->{ext}
		502	? undef
		503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		504	}
		505
		506	sub customise_for {
		507	my ($self, $map, $ob) = @_;
		508
		509	if ($map->per_player) {
		510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
		511	}
		512
		513	$map
		514	}
		515
		516	# this is somewhat ugly, but style maps do need special treatment
		517	sub is_style_map {
		518	$_[0]{path} =~ m{^/styles/}
		519	}
		520
		521	sub load_orig {
		522	my ($self) = @_;
		523
		524	&cf::map::load_map_header ($self->load_path)
		525	}
		526
		527	sub load_temp {
		528	my ($self) = @_;
		529
		530	&cf::map::load_map_header ($self->save_path)
		531	}
		532
		533	sub unlink_save {
		534	my ($self) = @_;
		535
		536	utf8::encode (my $save = $self->save_path);
		537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		539	}
		540
		541	package cf;
205		542
206	#############################################################################	543	#############################################################################
207		544
208	=head2 ATTACHABLE OBJECTS	545	=head2 ATTACHABLE OBJECTS
209		546
…		…
563	);	900	);
564		901
565	sub object_freezer_save {	902	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	903	my ($filename, $rdata, $objs) = @_;
567		904
		905	sync_job {
568	if (length $$rdata) {	906	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	907	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	908	$filename, length $$rdata, scalar @$objs;
571		909
572	if (open my $fh, ">:raw", "$filename~") {	910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	911	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		913	aio_fsync $fh;
580	close $fh;	914	close $fh;
		915
		916	if (@$objs) {
		917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		918	chmod SAVE_MODE, $fh;
		919	my $data = Storable::nfreeze { version => 1, objs => $objs };
		920	aio_write $fh, 0, (length $data), $data, 0;
		921	aio_fsync $fh;
		922	close $fh;
581	rename "$filename.pst~", "$filename.pst";	923	aio_rename "$filename.pst~", "$filename.pst";
		924	}
		925	} else {
		926	aio_unlink "$filename.pst";
		927	}
		928
		929	aio_rename "$filename~", $filename;
582	} else {	930	} else {
583	unlink "$filename.pst";	931	warn "FATAL: $filename~: $!\n";
584	}	932	}
585
586	rename "$filename~", $filename;
587	} else {	933	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	934	aio_unlink $filename;
592	unlink "$filename.pst";	935	aio_unlink "$filename.pst";
		936	}
593	}	937	}
594	}	938	}
595		939
596	sub object_freezer_as_string {	940	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	941	my ($rdata, $objs) = @_;
…		…
602	}	946	}
603		947
604	sub object_thawer_load {	948	sub object_thawer_load {
605	my ($filename) = @_;	949	my ($filename) = @_;
606		950
607	local $/;	951	my ($data, $av);
608		952
609	my $av;	953	(aio_load $filename, $data) >= 0
		954	or return;
610		955
611	#TODO: use sysread etc.	956	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	957	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	958	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	959	$av = eval { (Storable::thaw $av)->{objs} };
616	}	960	}
		961
		962	warn sprintf "loading %s (%d)\n",
		963	$filename, length $data, scalar @{$av || []};#d#
617	return ($data, $av);	964	return ($data, $av);
618	}
619
620	()
621	}	965	}
622		966
623	#############################################################################	967	#############################################################################
624	# command handling &c	968	# command handling &c
625		969
…		…
649	=cut	993	=cut
650		994
651	sub register_extcmd {	995	sub register_extcmd {
652	my ($name, $cb) = @_;	996	my ($name, $cb) = @_;
653		997
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	998	$EXTCMD{$name} = $cb;
658	}	999	}
659		1000
660	cf::player->attach (	1001	cf::player->attach (
661	on_command => sub {	1002	on_command => sub {
662	my ($pl, $name, $params) = @_;	1003	my ($pl, $name, $params) = @_;
…		…
675		1016
676	my $msg = eval { from_json $buf };	1017	my $msg = eval { from_json $buf };
677		1018
678	if (ref $msg) {	1019	if (ref $msg) {
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	1021	if (my %reply = $cb->($pl, $msg)) {
681	$pl->ext_reply ($msg->{msgid}, %reply);	1022	$pl->ext_reply ($msg->{msgid}, %reply);
682	}	1023	}
683	}	1024	}
684	} else {	1025	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
687		1028
688	cf::override;	1029	cf::override;
689	},	1030	},
690	);	1031	);
691		1032
692	sub register {
693	my ($base, $pkg) = @_;
694
695	#TODO
696	}
697
698	sub load_extension {	1033	sub load_extension {
699	my ($path) = @_;	1034	my ($path) = @_;
700		1035
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
702	my $base = $1;	1037	my $base = $1;
703	my $pkg = $1;	1038	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;	1039	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";	1040	$pkg = "ext::$pkg";
706		1041
707	warn "loading '$path' into '$pkg'\n";	1042	warn "... loading '$path' into '$pkg'\n";
708		1043
709	open my $fh, "<:utf8", $path	1044	open my $fh, "<:utf8", $path
710	or die "$path: $!";	1045	or die "$path: $!";
711		1046
712	my $source =	1047	my $source =
…		…
717		1052
718	eval $source	1053	eval $source
719	or die $@ ? "$path: $@\n"	1054	or die $@ ? "$path: $@\n"
720	: "extension disabled.\n";	1055	: "extension disabled.\n";
721		1056
722	push @exts, $pkg;	1057	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	}	1058	}
767		1059
768	sub load_extensions {	1060	sub load_extensions {
769	for my $ext (<$LIBDIR/*.ext>) {	1061	for my $ext (<$LIBDIR/*.ext>) {
770	next unless -r $ext;	1062	next unless -r $ext;
…		…
788	};	1080	};
789		1081
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
791		1083
792	#############################################################################	1084	#############################################################################
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		1085
816	=head2 CORE EXTENSIONS	1086	=head2 CORE EXTENSIONS
817		1087
818	Functions and methods that extend core crossfire objects.	1088	Functions and methods that extend core crossfire objects.
819		1089
		1090	=cut
		1091
		1092	package cf::player;
		1093
		1094	use Coro::AIO;
		1095
820	=head3 cf::player	1096	=head3 cf::player
821		1097
822	=over 4	1098	=over 4
823		1099
824	=item cf::player::exists $login	1100	=item cf::player::find $login
825		1101
826	Returns true when the given account exists.	1102	Returns the given player object, loading it if necessary (might block).
827		1103
828	=cut	1104	=cut
829		1105
830	sub cf::player::exists($) {	1106	sub playerdir($) {
831	cf::player::find $_[0]	1107	cf::localdir
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1108	. "/"
		1109	. cf::playerdir
		1110	. "/"
		1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1112	}
		1113
		1114	sub path($) {
		1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1116
		1117	(playerdir $login) . "/$login.pl"
		1118	}
		1119
		1120	sub find_active($) {
		1121	$cf::PLAYER{$_[0]}
		1122	and $cf::PLAYER{$_[0]}->active
		1123	and $cf::PLAYER{$_[0]}
		1124	}
		1125
		1126	sub exists($) {
		1127	my ($login) = @_;
		1128
		1129	$cf::PLAYER{$login}
		1130	or cf::sync_job { !aio_stat $login }
		1131	}
		1132
		1133	sub find($) {
		1134	return $cf::PLAYER{$_[0]} || do {
		1135	my $login = $_[0];
		1136
		1137	my $guard = cf::lock_acquire "user_find:$login";
		1138
		1139	$cf::PLAYER{$_[0]} || do {
		1140	my $pl = load_pl path $login
		1141	or return;
		1142	$cf::PLAYER{$login} = $pl
		1143	}
		1144	}
		1145	}
		1146
		1147	sub save($) {
		1148	my ($pl) = @_;
		1149
		1150	return if $pl->{deny_save};
		1151
		1152	my $path = path $pl;
		1153	my $guard = cf::lock_acquire "user_save:$path";
		1154
		1155	return if $pl->{deny_save};
		1156
		1157	aio_mkdir playerdir $pl, 0770;
		1158	$pl->{last_save} = $cf::RUNTIME;
		1159
		1160	$pl->save_pl ($path);
		1161	Coro::cede;
		1162	}
		1163
		1164	sub new($) {
		1165	my ($login) = @_;
		1166
		1167	my $self = create;
		1168
		1169	$self->ob->name ($login);
		1170	$self->{deny_save} = 1;
		1171
		1172	$cf::PLAYER{$login} = $self;
		1173
		1174	$self
		1175	}
		1176
		1177	=item $pl->quit_character
		1178
		1179	Nukes the player without looking back. If logged in, the connection will
		1180	be destroyed. May block for a long time.
		1181
		1182	=cut
		1183
		1184	sub quit_character {
		1185	my ($pl) = @_;
		1186
		1187	$pl->{deny_save} = 1;
		1188	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1189
		1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1191	$pl->deactivate;
		1192	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1193	$pl->ns->destroy if $pl->ns;
		1194
		1195	my $path = playerdir $pl;
		1196	my $temp = "$path~$cf::RUNTIME~deleting~";
		1197	aio_rename $path, $temp;
		1198	delete $cf::PLAYER{$pl->ob->name};
		1199	$pl->destroy;
		1200	IO::AIO::aio_rmtree $temp;
		1201	}
		1202
		1203	=item cf::player::list_logins
		1204
		1205	Returns am arrayref of all valid playernames in the system, can take a
		1206	while and may block, so not sync_job-capable, ever.
		1207
		1208	=cut
		1209
		1210	sub list_logins {
		1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1212	or return [];
		1213
		1214	my @logins;
		1215
		1216	for my $login (@$dirs) {
		1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1218	aio_read $fh, 0, 512, my $buf, 0 or next;
		1219	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1220
		1221	utf8::decode $login;
		1222	push @logins, $login;
		1223	}
		1224
		1225	\@logins
		1226	}
		1227
		1228	=item $player->maps
		1229
		1230	Returns an arrayref of cf::path's of all maps that are private for this
		1231	player. May block.
		1232
		1233	=cut
		1234
		1235	sub maps($) {
		1236	my ($pl) = @_;
		1237
		1238	my $files = aio_readdir playerdir $pl
		1239	or return;
		1240
		1241	my @paths;
		1242
		1243	for (@$files) {
		1244	utf8::decode $_;
		1245	next if /\.(?:pl|pst)$/;
		1246	next unless /^$PATH_SEP/o;
		1247
		1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1249	}
		1250
		1251	\@paths
833	}	1252	}
834		1253
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	1254	=item $player->ext_reply ($msgid, $msgtype, %msg)
836		1255
837	Sends an ext reply to the player.	1256	Sends an ext reply to the player.
838		1257
839	=cut	1258	=cut
840		1259
841	sub cf::player::ext_reply($$$%) {	1260	sub ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;	1261	my ($self, $id, %msg) = @_;
843		1262
844	$msg{msgid} = $id;	1263	$msg{msgid} = $id;
845		1264
846	$self->send ("ext " . to_json \%msg);	1265	$self->send ("ext " . cf::to_json \%msg);
847	}	1266	}
		1267
		1268	package cf;
		1269
		1270	=back
		1271
		1272
		1273	=head3 cf::map
		1274
		1275	=over 4
		1276
		1277	=cut
		1278
		1279	package cf::map;
		1280
		1281	use Fcntl;
		1282	use Coro::AIO;
		1283
		1284	our $MAX_RESET = 3600;
		1285	our $DEFAULT_RESET = 3000;
		1286
		1287	sub generate_random_map {
		1288	my ($path, $rmp) = @_;
		1289
		1290	# mit "rum" bekleckern, nicht
		1291	cf::map::_create_random_map (
		1292	$path,
		1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1296	$rmp->{exit_on_final_map},
		1297	$rmp->{xsize}, $rmp->{ysize},
		1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1303	(cf::region::find $rmp->{region}), $rmp->{custom}
		1304	)
		1305	}
		1306
		1307	# and all this just because we cannot iterate over
		1308	# all maps in C++...
		1309	sub change_all_map_light {
		1310	my ($change) = @_;
		1311
		1312	$_->change_map_light ($change)
		1313	for grep $_->outdoor, values %cf::MAP;
		1314	}
		1315
		1316	sub load_map_header($) {
		1317	my ($path) = @_;
		1318
		1319	utf8::encode $path;
		1320	aio_open $path, O_RDONLY, 0
		1321	or return;
		1322
		1323	my $map = cf::map::new
		1324	or return;
		1325
		1326	# for better error messages only, will be overwritten later
		1327	$map->path ($path);
		1328
		1329	$map->load_header ($path)
		1330	or return;
		1331
		1332	$map->{load_path} = $path;
		1333
		1334	$map
		1335	}
		1336
		1337	sub find;
		1338	sub find {
		1339	my ($path, $origin) = @_;
		1340
		1341	#warn "find<$path,$origin>\n";#d#
		1342
		1343	$path = new cf::path $path, $origin && $origin->path;
		1344	my $key = $path->as_string;
		1345
		1346	cf::lock_wait "map_find:$key";
		1347
		1348	$cf::MAP{$key} || do {
		1349	my $guard = cf::lock_acquire "map_find:$key";
		1350
		1351	# do it the slow way
		1352	my $map = $path->load_temp;
		1353
		1354	Coro::cede;
		1355
		1356	if ($map) {
		1357	$map->last_access ((delete $map->{last_access})
		1358	|| $cf::RUNTIME); #d#
		1359	# safety
		1360	$map->{instantiate_time} = $cf::RUNTIME
		1361	if $map->{instantiate_time} > $cf::RUNTIME;
		1362	} else {
		1363	$map = $path->load_orig
		1364	or return;
		1365
		1366	$map->{load_original} = 1;
		1367	$map->{instantiate_time} = $cf::RUNTIME;
		1368	$map->last_access ($cf::RUNTIME);
		1369	$map->instantiate;
		1370
		1371	# per-player maps become, after loading, normal maps
		1372	$map->per_player (0) if $path->{user_rel};
		1373	}
		1374
		1375	$map->path ($key);
		1376	$map->{path} = $path;
		1377	$map->{last_save} = $cf::RUNTIME;
		1378
		1379	Coro::cede;
		1380
		1381	if ($map->should_reset) {
		1382	$map->reset;
		1383	undef $guard;
		1384	$map = find $path
		1385	or return;
		1386	}
		1387
		1388	$cf::MAP{$key} = $map
		1389	}
		1390	}
		1391
		1392	sub load {
		1393	my ($self) = @_;
		1394
		1395	my $path = $self->{path};
		1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1397
		1398	return if $self->in_memory != cf::MAP_SWAPPED;
		1399
		1400	$self->in_memory (cf::MAP_LOADING);
		1401
		1402	$self->alloc;
		1403	$self->load_objects ($self->{load_path}, 1)
		1404	or return;
		1405
		1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1407	if delete $self->{load_original};
		1408
		1409	if (my $uniq = $path->uniq_path) {
		1410	utf8::encode $uniq;
		1411	if (aio_open $uniq, O_RDONLY, 0) {
		1412	$self->clear_unique_items;
		1413	$self->load_objects ($uniq, 0);
		1414	}
		1415	}
		1416
		1417	Coro::cede;
		1418
		1419	# now do the right thing for maps
		1420	$self->link_multipart_objects;
		1421
		1422	if ($self->{path}->is_style_map) {
		1423	$self->{deny_save} = 1;
		1424	$self->{deny_reset} = 1;
		1425	} else {
		1426	$self->decay_objects;
		1427	$self->fix_auto_apply;
		1428	$self->update_buttons;
		1429	$self->set_darkness_map;
		1430	$self->difficulty ($self->estimate_difficulty)
		1431	unless $self->difficulty;
		1432	$self->activate;
		1433	}
		1434
		1435	Coro::cede;
		1436
		1437	$self->in_memory (cf::MAP_IN_MEMORY);
		1438	}
		1439
		1440	# find and load all maps in the 3x3 area around a map
		1441	sub load_diag {
		1442	my ($map) = @_;
		1443
		1444	my @diag; # diagonal neighbours
		1445
		1446	for (0 .. 3) {
		1447	my $neigh = $map->tile_path ($_)
		1448	or next;
		1449	$neigh = find $neigh, $map
		1450	or next;
		1451	$neigh->load;
		1452
		1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1455	}
		1456
		1457	for (@diag) {
		1458	my $neigh = find @$_
		1459	or next;
		1460	$neigh->load;
		1461	}
		1462	}
		1463
		1464	sub find_sync {
		1465	my ($path, $origin) = @_;
		1466
		1467	cf::sync_job { find $path, $origin }
		1468	}
		1469
		1470	sub do_load_sync {
		1471	my ($map) = @_;
		1472
		1473	cf::sync_job { $map->load };
		1474	}
		1475
		1476	our %MAP_PREFETCH;
		1477	our $MAP_PREFETCHER = Coro::async {
		1478	while () {
		1479	while (%MAP_PREFETCH) {
		1480	my $key = each %MAP_PREFETCH
		1481	or next;
		1482	my $path = delete $MAP_PREFETCH{$key};
		1483
		1484	my $map = find $path
		1485	or next;
		1486	$map->load;
		1487	}
		1488	Coro::schedule;
		1489	}
		1490	};
		1491
		1492	sub find_async {
		1493	my ($path, $origin) = @_;
		1494
		1495	$path = new cf::path $path, $origin && $origin->path;
		1496	my $key = $path->as_string;
		1497
		1498	if (my $map = $cf::MAP{$key}) {
		1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1500	}
		1501
		1502	$MAP_PREFETCH{$key} = $path;
		1503	$MAP_PREFETCHER->ready;
		1504
		1505	()
		1506	}
		1507
		1508	sub save {
		1509	my ($self) = @_;
		1510
		1511	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1512
		1513	$self->{last_save} = $cf::RUNTIME;
		1514
		1515	return unless $self->dirty;
		1516
		1517	my $save = $self->{path}->save_path; utf8::encode $save;
		1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1519
		1520	$self->{load_path} = $save;
		1521
		1522	return if $self->{deny_save};
		1523
		1524	local $self->{last_access} = $self->last_access;#d#
		1525
		1526	cf::async {
		1527	$_->contr->save for $self->players;
		1528	};
		1529
		1530	if ($uniq) {
		1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1532	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1533	} else {
		1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1535	}
		1536	}
		1537
		1538	sub swap_out {
		1539	my ($self) = @_;
		1540
		1541	# save first because save cedes
		1542	$self->save;
		1543
		1544	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1545
		1546	return if $self->players;
		1547	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1548	return if $self->{deny_save};
		1549
		1550	$self->clear;
		1551	$self->in_memory (cf::MAP_SWAPPED);
		1552	}
		1553
		1554	sub reset_at {
		1555	my ($self) = @_;
		1556
		1557	# TODO: safety, remove and allow resettable per-player maps
		1558	return 1e99 if $self->{path}{user_rel};
		1559	return 1e99 if $self->{deny_reset};
		1560
		1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1563
		1564	$time + $to
		1565	}
		1566
		1567	sub should_reset {
		1568	my ($self) = @_;
		1569
		1570	$self->reset_at <= $cf::RUNTIME
		1571	}
		1572
		1573	sub rename {
		1574	my ($self, $new_path) = @_;
		1575
		1576	$self->{path}->unlink_save;
		1577
		1578	delete $cf::MAP{$self->path};
		1579	$self->{path} = new cf::path $new_path;
		1580	$self->path ($self->{path}->as_string);
		1581	$cf::MAP{$self->path} = $self;
		1582
		1583	$self->save;
		1584	}
		1585
		1586	sub reset {
		1587	my ($self) = @_;
		1588
		1589	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1590
		1591	return if $self->players;
		1592	return if $self->{path}{user_rel};#d#
		1593
		1594	warn "resetting map ", $self->path;#d#
		1595
		1596	delete $cf::MAP{$self->path};
		1597
		1598	$_->clear_links_to ($self) for values %cf::MAP;
		1599
		1600	$self->{path}->unlink_save;
		1601	$self->destroy;
		1602	}
		1603
		1604	my $nuke_counter = "aaaa";
		1605
		1606	sub nuke {
		1607	my ($self) = @_;
		1608
		1609	$self->{deny_save} = 1;
		1610	$self->reset_timeout (1);
		1611	$self->rename ("{nuke}/" . ($nuke_counter++));
		1612	$self->reset; # polite request, might not happen
		1613	}
		1614
		1615	=item cf::map::unique_maps
		1616
		1617	Returns an arrayref of cf::path's of all shared maps that have
		1618	instantiated unique items. May block.
		1619
		1620	=cut
		1621
		1622	sub unique_maps() {
		1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1624	or return;
		1625
		1626	my @paths;
		1627
		1628	for (@$files) {
		1629	utf8::decode $_;
		1630	next if /\.pst$/;
		1631	next unless /^$PATH_SEP/o;
		1632
		1633	push @paths, new cf::path $_;
		1634	}
		1635
		1636	\@paths
		1637	}
		1638
		1639	package cf;
		1640
		1641	=back
		1642
		1643	=head3 cf::object
		1644
		1645	=cut
		1646
		1647	package cf::object;
		1648
		1649	=over 4
		1650
		1651	=item $ob->inv_recursive
		1652
		1653	Returns the inventory of the object _and_ their inventories, recursively.
		1654
		1655	=cut
		1656
		1657	sub inv_recursive_;
		1658	sub inv_recursive_ {
		1659	map { $_, inv_recursive_ $_->inv } @_
		1660	}
		1661
		1662	sub inv_recursive {
		1663	inv_recursive_ inv $_[0]
		1664	}
		1665
		1666	package cf;
848		1667
849	=back	1668	=back
850		1669
851	=head3 cf::object::player	1670	=head3 cf::object::player
852		1671
…		…
890	(ref $cf::CFG{"may_$access"}	1709	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1710	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	1711	: $cf::CFG{"may_$access"})
893	}	1712	}
894		1713
		1714	=item $player_object->enter_link
		1715
		1716	Freezes the player and moves him/her to a special map (C<{link}>).
		1717
		1718	The player should be reaosnably safe there for short amounts of time. You
		1719	I<MUST> call C<leave_link> as soon as possible, though.
		1720
		1721	=item $player_object->leave_link ($map, $x, $y)
		1722
		1723	Moves the player out of the specila link map onto the given map. If the
		1724	map is not valid (or omitted), the player will be moved back to the
		1725	location he/she was before the call to C<enter_link>, or, if that fails,
		1726	to the emergency map position.
		1727
		1728	Might block.
		1729
		1730	=cut
		1731
		1732	sub cf::object::player::enter_link {
		1733	my ($self) = @_;
		1734
		1735	$self->deactivate_recursive;
		1736
		1737	return if $self->map == $LINK_MAP;
		1738
		1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1740	if $self->map;
		1741
		1742	$self->enter_map ($LINK_MAP, 20, 20);
		1743	}
		1744
		1745	sub cf::object::player::leave_link {
		1746	my ($self, $map, $x, $y) = @_;
		1747
		1748	my $link_pos = delete $self->{_link_pos};
		1749
		1750	unless ($map) {
		1751	# restore original map position
		1752	($map, $x, $y) = @{ $link_pos || [] };
		1753	$map = cf::map::find $map;
		1754
		1755	unless ($map) {
		1756	($map, $x, $y) = @$EMERGENCY_POSITION;
		1757	$map = cf::map::find $map
		1758	or die "FATAL: cannot load emergency map\n";
		1759	}
		1760	}
		1761
		1762	($x, $y) = (-1, -1)
		1763	unless (defined $x) && (defined $y);
		1764
		1765	# use -1 or undef as default coordinates, not 0, 0
		1766	($x, $y) = ($map->enter_x, $map->enter_y)
		1767	if $x <=0 && $y <= 0;
		1768
		1769	$map->load;
		1770	$map->load_diag;
		1771
		1772	return unless $self->contr->active;
		1773	$self->activate_recursive;
		1774	$self->enter_map ($map, $x, $y);
		1775	}
		1776
		1777	cf::player->attach (
		1778	on_logout => sub {
		1779	my ($pl) = @_;
		1780
		1781	# abort map switching before logout
		1782	if ($pl->ob->{_link_pos}) {
		1783	cf::sync_job {
		1784	$pl->ob->leave_link
		1785	};
		1786	}
		1787	},
		1788	on_login => sub {
		1789	my ($pl) = @_;
		1790
		1791	# try to abort aborted map switching on player login :)
		1792	# should happen only on crashes
		1793	if ($pl->ob->{_link_pos}) {
		1794	$pl->ob->enter_link;
		1795	(async {
		1796	# we need this sleep as the login has a concurrent enter_exit running
		1797	# and this sleep increases chances of the player not ending up in scorn
		1798	$pl->ob->reply (undef,
		1799	"There was an internal problem at your last logout, "
		1800	. "the server will try to bring you to your intended destination in a second.",
		1801	cf::NDI_RED);
		1802	Coro::Timer::sleep 1;
		1803	$pl->ob->leave_link;
		1804	})->prio (2);
		1805	}
		1806	},
		1807	);
		1808
		1809	=item $player_object->goto ($path, $x, $y)
		1810
		1811	=cut
		1812
		1813	sub cf::object::player::goto {
		1814	my ($self, $path, $x, $y) = @_;
		1815
		1816	$path = new cf::path $path;
		1817
		1818	$self->enter_link;
		1819
		1820	(async {
		1821	my $map = cf::map::find $path->as_string;
		1822	$map = $map->{path}->customise_for ($map, $self) if $map;
		1823
		1824	# warn "entering ", $map->path, " at ($x, $y)\n"
		1825	# if $map;
		1826
		1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1828
		1829	$self->leave_link ($map, $x, $y);
		1830	})->prio (1);
		1831	}
		1832
		1833	=item $player_object->enter_exit ($exit_object)
		1834
		1835	=cut
		1836
		1837	sub parse_random_map_params {
		1838	my ($spec) = @_;
		1839
		1840	my $rmp = { # defaults
		1841	xsize => 10,
		1842	ysize => 10,
		1843	};
		1844
		1845	for (split /\n/, $spec) {
		1846	my ($k, $v) = split /\s+/, $_, 2;
		1847
		1848	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1849	}
		1850
		1851	$rmp
		1852	}
		1853
		1854	sub prepare_random_map {
		1855	my ($exit) = @_;
		1856
		1857	# all this does is basically replace the /! path by
		1858	# a new random map path (?random/...) with a seed
		1859	# that depends on the exit object
		1860
		1861	my $rmp = parse_random_map_params $exit->msg;
		1862
		1863	if ($exit->map) {
		1864	$rmp->{region} = $exit->map->region_name;
		1865	$rmp->{origin_map} = $exit->map->path;
		1866	$rmp->{origin_x} = $exit->x;
		1867	$rmp->{origin_y} = $exit->y;
		1868	}
		1869
		1870	$rmp->{random_seed} ||= $exit->random_seed;
		1871
		1872	my $data = cf::to_json $rmp;
		1873	my $md5 = Digest::MD5::md5_hex $data;
		1874
		1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1876	aio_write $fh, 0, (length $data), $data, 0;
		1877
		1878	$exit->slaying ("?random/$md5");
		1879	$exit->msg (undef);
		1880	}
		1881	}
		1882
		1883	sub cf::object::player::enter_exit {
		1884	my ($self, $exit) = @_;
		1885
		1886	return unless $self->type == cf::PLAYER;
		1887
		1888	$self->enter_link;
		1889
		1890	(async {
		1891	$self->deactivate_recursive; # just to be sure
		1892	unless (eval {
		1893	prepare_random_map $exit
		1894	if $exit->slaying eq "/!";
		1895
		1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1898
		1899	1;
		1900	}) {
		1901	$self->message ("Something went wrong deep within the crossfire server. "
		1902	. "I'll try to bring you back to the map you were before. "
		1903	. "Please report this to the dungeon master!",
		1904	cf::NDI_UNIQUE | cf::NDI_RED);
		1905
		1906	warn "ERROR in enter_exit: $@";
		1907	$self->leave_link;
		1908	}
		1909	})->prio (1);
		1910	}
		1911
895	=head3 cf::client	1912	=head3 cf::client
896		1913
897	=over 4	1914	=over 4
898		1915
899	=item $client->send_drawinfo ($text, $flags)	1916	=item $client->send_drawinfo ($text, $flags)
…		…
942	on_reply => sub {	1959	on_reply => sub {
943	my ($ns, $msg) = @_;	1960	my ($ns, $msg) = @_;
944		1961
945	# this weird shuffling is so that direct followup queries	1962	# this weird shuffling is so that direct followup queries
946	# get handled first	1963	# get handled first
947	my $queue = delete $ns->{query_queue};	1964	my $queue = delete $ns->{query_queue}
		1965	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		1966
949	(shift @$queue)->[1]->($msg);	1967	(shift @$queue)->[1]->($msg);
950		1968
951	push @{ $ns->{query_queue} }, @$queue;	1969	push @{ $ns->{query_queue} }, @$queue;
952		1970
…		…
958	}	1976	}
959	}	1977	}
960	},	1978	},
961	);	1979	);
962		1980
963	=item $client->coro (\&cb)	1981	=item $client->async (\&cb)
964		1982
965	Create a new coroutine, running the specified callback. The coroutine will	1983	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	1984	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	1985	or loss of connection).
968		1986
969	=cut	1987	=cut
970		1988
971	sub cf::client::coro {	1989	sub cf::client::async {
972	my ($self, $cb) = @_;	1990	my ($self, $cb) = @_;
973		1991
974	my $coro; $coro = async {	1992	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		1993
981	$coro->on_destroy (sub {	1994	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	1995	delete $self->{_coro}{$coro+0};
983	});	1996	});
984		1997
…		…
1156		2169
1157	{	2170	{
1158	my $path = cf::localdir . "/database.pst";	2171	my $path = cf::localdir . "/database.pst";
1159		2172
1160	sub db_load() {	2173	sub db_load() {
1161	warn "loading database $path\n";#d# remove later
1162	$DB = stat $path ? Storable::retrieve $path : { };	2174	$DB = stat $path ? Storable::retrieve $path : { };
1163	}	2175	}
1164		2176
1165	my $pid;	2177	my $pid;
1166		2178
1167	sub db_save() {	2179	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;	2180	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {	2181	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;	2182	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";	2183	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;	2184	rename "$path~", $path;
…		…
1221	open my $fh, "<:utf8", cf::confdir . "/config"	2232	open my $fh, "<:utf8", cf::confdir . "/config"
1222	or return;	2233	or return;
1223		2234
1224	local $/;	2235	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	2236	*CFG = YAML::Syck::Load <$fh>;
		2237
		2238	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2239
		2240	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2241	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2242
		2243	if (exists $CFG{mlockall}) {
		2244	eval {
		2245	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2246	and die "WARNING: m(un)lockall failed: $!\n";
		2247	};
		2248	warn $@ if $@;
		2249	}
1226	}	2250	}
1227		2251
1228	sub main {	2252	sub main {
		2253	# we must not ever block the main coroutine
		2254	local $Coro::idle = sub {
		2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2256	async { Event::one_event };
		2257	};
		2258
1229	cfg_load;	2259	cfg_load;
1230	db_load;	2260	db_load;
1231	load_extensions;	2261	load_extensions;
1232	Event::loop;	2262	Event::loop;
1233	}	2263	}
1234		2264
1235	#############################################################################	2265	#############################################################################
1236	# initialisation	2266	# initialisation and cleanup
1237		2267
		2268	# install some emergency cleanup handlers
		2269	BEGIN {
		2270	for my $signal (qw(INT HUP TERM)) {
		2271	Event->signal (
		2272	data => WF_AUTOCANCEL,
		2273	signal => $signal,
		2274	cb => sub {
		2275	cf::cleanup "SIG$signal";
		2276	},
		2277	);
		2278	}
		2279	}
		2280
		2281	sub emergency_save() {
		2282	my $freeze_guard = cf::freeze_mainloop;
		2283
		2284	warn "enter emergency perl save\n";
		2285
		2286	cf::sync_job {
		2287	# use a peculiar iteration method to avoid tripping on perl
		2288	# refcount bugs in for. also avoids problems with players
		2289	# and maps saved/Destroyed asynchronously.
		2290	warn "begin emergency player save\n";
		2291	for my $login (keys %cf::PLAYER) {
		2292	my $pl = $cf::PLAYER{$login} or next;
		2293	$pl->valid or next;
		2294	$pl->save;
		2295	}
		2296	warn "end emergency player save\n";
		2297
		2298	warn "begin emergency map save\n";
		2299	for my $path (keys %cf::MAP) {
		2300	my $map = $cf::MAP{$path} or next;
		2301	$map->valid or next;
		2302	$map->save;
		2303	}
		2304	warn "end emergency map save\n";
		2305	};
		2306
		2307	warn "leave emergency perl save\n";
		2308	}
		2309
1238	sub _perl_reload() {	2310	sub reload() {
		2311	# can/must only be called in main
		2312	if ($Coro::current != $Coro::main) {
		2313	warn "can only reload from main coroutine\n";
		2314	return;
		2315	}
		2316
1239	warn "reloading...";	2317	warn "reloading...";
1240		2318
		2319	warn "freezing server";
		2320	my $guard = freeze_mainloop;
		2321	cf::emergency_save;
		2322
		2323	warn "sync database to disk";
		2324	cf::db_sync;
		2325	IO::AIO::flush;
		2326
1241	eval {	2327	eval {
1242	local $FREEZE = 1;	2328	# if anything goes wrong in here, we should simply crash as we already saved
1243		2329
1244	cf::emergency_save;
1245
1246	# cancel all watchers	2330	warn "cancel all watchers";
1247	for (Event::all_watchers) {	2331	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	2332	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	2333	}
1250		2334
1251	# cancel all extension coros	2335	warn "cancel all extension coros";
1252	$_->cancel for values %EXT_CORO;	2336	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	2337	%EXT_CORO = ();
1254		2338
		2339	warn "remove commands";
		2340	%COMMAND = ();
		2341
		2342	warn "remove ext commands";
		2343	%EXTCMD = ();
		2344
1255	# unload all extensions	2345	warn "unload/nuke all extensions";
1256	for (@exts) {	2346	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	2347	warn "... unloading $pkg";
1258	unload_extension $_;	2348
		2349	if (my $cb = $pkg->can ("unload")) {
		2350	eval {
		2351	$cb->($pkg);
		2352	1
		2353	} or warn "$pkg unloaded, but with errors: $@";
1259	}	2354	}
1260		2355
		2356	warn "... nuking $pkg";
		2357	Symbol::delete_package $pkg;
		2358	}
		2359
1261	# unload all modules loaded from $LIBDIR	2360	warn "unload all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	2361	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		2363
1265	warn "removing <$k>";	2364	warn "removing <$k>";
1266	delete $INC{$k};	2365	delete $INC{$k};
…		…
1273	}	2372	}
1274		2373
1275	Symbol::delete_package $k;	2374	Symbol::delete_package $k;
1276	}	2375	}
1277		2376
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	2377	warn "get rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	2378	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		2380
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	2381	warn "unload cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	2382	delete $INC{"cf.pm"};
1291		2383
1292	# don't, removes xs symbols, too,	2384	# don't, removes xs symbols, too,
1293	# and global variables created in xs	2385	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	2386	#Symbol::delete_package __PACKAGE__;
1295		2387
1296	# reload cf.pm
1297	warn "reloading cf.pm";	2388	warn "reloading cf.pm";
1298	require cf;	2389	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		2391
1301	# load config and database again	2392	warn "load config and database again";
1302	cf::cfg_load;	2393	cf::cfg_load;
1303	cf::db_load;	2394	cf::db_load;
1304		2395
1305	# load extensions
1306	warn "load extensions";	2396	warn "load extensions";
1307	cf::load_extensions;	2397	cf::load_extensions;
1308		2398
1309	# reattach attachments to objects	2399	warn "reattach attachments to objects/players";
1310	warn "reattach";
1311	_global_reattach;	2400	_global_reattach;
		2401	warn "reattach attachments to maps";
		2402	reattach $_ for values %MAP;
1312	};	2403	};
1313	warn $@ if $@;	2404
		2405	if ($@) {
		2406	warn $@;
		2407	warn "error while reloading, exiting.";
		2408	exit 1;
		2409	}
1314		2410
1315	warn "reloaded";	2411	warn "reloaded";
1316	};	2412	};
1317		2413
1318	sub perl_reload() {	2414	#############################################################################
1319	_perl_reload;
1320	}
1321		2415
1322	register "<global>", __PACKAGE__;	2416	unless ($LINK_MAP) {
		2417	$LINK_MAP = cf::map::new;
1323		2418
		2419	$LINK_MAP->width (41);
		2420	$LINK_MAP->height (41);
		2421	$LINK_MAP->alloc;
		2422	$LINK_MAP->path ("{link}");
		2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2425
		2426	# dirty hack because... archetypes are not yet loaded
		2427	Event->timer (
		2428	after => 10,
		2429	cb => sub {
		2430	$_[0]->w->cancel;
		2431
		2432	# provide some exits "home"
		2433	my $exit = cf::object::new "exit";
		2434
		2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2438
		2439	$LINK_MAP->insert ($exit->clone, 19, 19);
		2440	$LINK_MAP->insert ($exit->clone, 19, 20);
		2441	$LINK_MAP->insert ($exit->clone, 19, 21);
		2442	$LINK_MAP->insert ($exit->clone, 20, 19);
		2443	$LINK_MAP->insert ($exit->clone, 20, 21);
		2444	$LINK_MAP->insert ($exit->clone, 21, 19);
		2445	$LINK_MAP->insert ($exit->clone, 21, 20);
		2446	$LINK_MAP->insert ($exit->clone, 21, 21);
		2447
		2448	$exit->destroy;
		2449	});
		2450
		2451	$LINK_MAP->{deny_save} = 1;
		2452	$LINK_MAP->{deny_reset} = 1;
		2453
		2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2455	}
		2456
1324	register_command "perl-reload" => sub {	2457	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	2458	my ($who, $arg) = @_;
1326		2459
1327	if ($who->flag (FLAG_WIZ)) {	2460	if ($who->flag (FLAG_WIZ)) {
		2461	$who->message ("start of reload.");
		2462	reload;
1328	$who->message ("reloading...");	2463	$who->message ("end of reload.");
1329	_perl_reload;
1330	}	2464	}
1331	};	2465	};
1332		2466
1333	unshift @INC, $LIBDIR;	2467	unshift @INC, $LIBDIR;
1334		2468
…		…
1336	reentrant => 0,	2470	reentrant => 0,
1337	prio => 0,	2471	prio => 0,
1338	at => $NEXT_TICK || $TICK,	2472	at => $NEXT_TICK || $TICK,
1339	data => WF_AUTOCANCEL,	2473	data => WF_AUTOCANCEL,
1340	cb => sub {	2474	cb => sub {
1341	unless ($FREEZE) {	2475	$NOW = Event::time;
		2476
1342	cf::server_tick; # one server iteration	2477	cf::server_tick; # one server iteration
1343	$RUNTIME += $TICK;	2478	$RUNTIME += $TICK;
1344	}
1345
1346	$NEXT_TICK += $TICK;	2479	$NEXT_TICK += $TICK;
		2480
		2481	$WAIT_FOR_TICK->broadcast;
		2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1347		2483
1348	# if we are delayed by four ticks or more, skip them all	2484	# if we are delayed by four ticks or more, skip them all
1349	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1350		2486
1351	$TICK_WATCHER->at ($NEXT_TICK);	2487	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1353	},	2489	},
1354	);	2490	);
1355		2491
1356	IO::AIO::max_poll_time $TICK * 0.2;	2492	IO::AIO::max_poll_time $TICK * 0.2;
1357		2493
		2494	Event->io (
1358	Event->io (fd => IO::AIO::poll_fileno,	2495	fd => IO::AIO::poll_fileno,
1359	poll => 'r',	2496	poll => 'r',
1360	prio => 5,	2497	prio => 5,
1361	data => WF_AUTOCANCEL,	2498	data => WF_AUTOCANCEL,
1362	cb => \&IO::AIO::poll_cb);	2499	cb => \&IO::AIO::poll_cb,
		2500	);
1363		2501
1364	# we must not ever block the main coroutine	2502	Event->timer (
1365	$Coro::idle = sub {	2503	data => WF_AUTOCANCEL,
1366	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2504	after => 0,
1367	warn "FATAL: Coro::idle was called, major BUG\n";	2505	interval => 10,
		2506	cb => sub {
1368	(Coro::unblock_sub {	2507	(Coro::unblock_sub {
1369	Event::one_event;	2508	write_runtime
		2509	or warn "ERROR: unable to write runtime file: $!";
1370	})->();	2510	})->();
1371	};	2511	},
		2512	);
		2513
		2514	END { cf::emergency_save }
1372		2515
1373	1	2516	1
1374		2517

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