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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 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	use Coro::AIO;
19		19
		20	use Data::Dumper;
		21	use Digest::MD5;
20	use Fcntl;	22	use Fcntl;
21	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
22	use YAML::Syck ();	24	use YAML::Syck ();
23	use Time::HiRes;	25	use Time::HiRes;
24		26
25	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
26		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
29		33
30	$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
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		35
34	our %COMMAND = ();	36	our %COMMAND = ();
35	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
37		43
38	our @EVENT;	44	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
40		46
41	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
…		…
46	our %CFG;	52	our %CFG;
47		53
48	our $UPTIME; $UPTIME ||= time;	54	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	55	our $RUNTIME;
50		56
		57	our %PLAYER; # all users
51	our %MAP; # all maps	58	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	59	our $LINK_MAP; # the special {link} map
53	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;
54		64
55	binmode STDOUT;	65	binmode STDOUT;
56	binmode STDERR;	66	binmode STDERR;
57		67
58	# read virtual server time, if available	68	# read virtual server time, if available
…		…
64		74
65	mkdir cf::localdir;	75	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	76	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	77	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	78	mkdir cf::localdir . "/" . cf::uniquedir;
		79	mkdir $RANDOM_MAPS;
69		80
70	our %EXT_CORO;	81	# a special map that is always available
		82	our $LINK_MAP;
		83	our $EMERGENCY_POSITION;
71		84
72	#############################################################################	85	#############################################################################
73		86
74	=head2 GLOBAL VARIABLES	87	=head2 GLOBAL VARIABLES
75		88
…		…
99		112
100	=item %cf::CFG	113	=item %cf::CFG
101		114
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	115	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	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.
104		124
105	=back	125	=back
106		126
107	=cut	127	=cut
108		128
…		…
112	utf8::encode $msg;	132	utf8::encode $msg;
113		133
114	$msg .= "\n"	134	$msg .= "\n"
115	unless $msg =~ /\n$/;	135	unless $msg =~ /\n$/;
116		136
117	LOG llevError, "cfperl: $msg";	137	LOG llevError, $msg;
118	};	138	};
119	}	139	}
120		140
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		160
141	$Event::DIED = sub {	161	$Event::DIED = sub {
142	warn "error in event callback: @_";	162	warn "error in event callback: @_";
143	};	163	};
144		164
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	165	=head2 UTILITY FUNCTIONS
150		166
151	=over 4	167	=over 4
152		168
		169	=item dumpval $ref
		170
153	=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	}
154		191
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	192	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		193
157	=item $ref = cf::from_json $json	194	=item $ref = cf::from_json $json
158		195
…		…
173		210
174	sub to_json($) {	211	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	213	JSON::Syck::Dump $_[0]
177	}	214	}
		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	$guard
		264	}
		265
		266	=item cf::async { BLOCK }
		267
		268	Currently the same as Coro::async_pool, meaning you cannot use
		269	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		270	thing you are allowed to do is call C<prio> on it.
		271
		272	=cut
		273
		274	BEGIN { *async = \&Coro::async_pool }
178		275
179	=item cf::sync_job { BLOCK }	276	=item cf::sync_job { BLOCK }
180		277
181	The design of crossfire+ requires that the main coro ($Coro::main) is	278	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	279	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	287	=cut
191		288
192	sub sync_job(&) {	289	sub sync_job(&) {
193	my ($job) = @_;	290	my ($job) = @_;
194		291
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	292	if ($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;
208	$coro->prio (Coro::PRIO_MAX);	307	})->prio (Coro::PRIO_MAX);
		308
209	while ($busy) {	309	while ($busy) {
210	Coro::cede_notself;	310	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	311	}
		312
		313	wantarray ? @res : $res[0]
213	} else {	314	} else {
214	$coro->join;	315	# we are in another coroutine, how wonderful, everything just works
		316
		317	$job->()
215	}	318	}
216
217	wantarray ? @res : $res[0]
218	}	319	}
219		320
220	=item $coro = cf::coro { BLOCK }	321	=item $coro = cf::async_ext { BLOCK }
221		322
222	Creates and returns a new coro. This coro is automcatially being canceled	323	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	324	extension calling this is being unloaded.
224		325
225	=cut	326	=cut
226		327
227	sub coro(&) {	328	sub async_ext(&) {
228	my $cb = shift;	329	my $cb = shift;
229		330
230	my $coro; $coro = async {	331	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		332
237	$coro->on_destroy (sub {	333	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	334	delete $EXT_CORO{$coro+0};
239	});	335	});
240	$EXT_CORO{$coro+0} = $coro;	336	$EXT_CORO{$coro+0} = $coro;
241		337
242	$coro	338	$coro
243	}	339	}
244		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
245	=back	363	=back
246		364
247	=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;
248		542
249	#############################################################################	543	#############################################################################
250		544
251	=head2 ATTACHABLE OBJECTS	545	=head2 ATTACHABLE OBJECTS
252		546
…		…
660	or return;	954	or return;
661		955
662	unless (aio_stat "$filename.pst") {	956	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	957	(aio_load "$filename.pst", $av) >= 0
664	or return;	958	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	959	$av = eval { (Storable::thaw $av)->{objs} };
666	}	960	}
667		961
		962	warn sprintf "loading %s (%d)\n",
		963	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	964	return ($data, $av);
669	}	965	}
670		966
671	#############################################################################	967	#############################################################################
672	# command handling &c	968	# command handling &c
…		…
697	=cut	993	=cut
698		994
699	sub register_extcmd {	995	sub register_extcmd {
700	my ($name, $cb) = @_;	996	my ($name, $cb) = @_;
701		997
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	998	$EXTCMD{$name} = $cb;
706	}	999	}
707		1000
708	cf::player->attach (	1001	cf::player->attach (
709	on_command => sub {	1002	on_command => sub {
710	my ($pl, $name, $params) = @_;	1003	my ($pl, $name, $params) = @_;
…		…
723		1016
724	my $msg = eval { from_json $buf };	1017	my $msg = eval { from_json $buf };
725		1018
726	if (ref $msg) {	1019	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	1021	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	1022	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	1023	}
731	}	1024	}
732	} else {	1025	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		1028
736	cf::override;	1029	cf::override;
737	},	1030	},
738	);	1031	);
739		1032
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	1033	sub load_extension {
747	my ($path) = @_;	1034	my ($path) = @_;
748		1035
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	1037	my $base = $1;
751	my $pkg = $1;	1038	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	1039	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	1040	$pkg = "ext::$pkg";
754		1041
755	warn "loading '$path' into '$pkg'\n";	1042	warn "... loading '$path' into '$pkg'\n";
756		1043
757	open my $fh, "<:utf8", $path	1044	open my $fh, "<:utf8", $path
758	or die "$path: $!";	1045	or die "$path: $!";
759		1046
760	my $source =	1047	my $source =
…		…
765		1052
766	eval $source	1053	eval $source
767	or die $@ ? "$path: $@\n"	1054	or die $@ ? "$path: $@\n"
768	: "extension disabled.\n";	1055	: "extension disabled.\n";
769		1056
770	push @exts, $pkg;	1057	push @EXTS, $pkg;
771	$ext_pkg{$base} = $pkg;
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }
789
790	# remove commands
791	for my $name (keys %COMMAND) {
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
793
794	if (@cb) {
795	$COMMAND{$name} = \@cb;
796	} else {
797	delete $COMMAND{$name};
798	}
799	}
800
801	# remove extcmds
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
803	delete $EXTCMD{$name};
804	}
805
806	if (my $cb = $pkg->can ("unload")) {
807	eval {
808	$cb->($pkg);
809	1
810	} or warn "$pkg unloaded, but with errors: $@";
811	}
812
813	Symbol::delete_package $pkg;
814	}	1058	}
815		1059
816	sub load_extensions {	1060	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	1061	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	1062	next unless -r $ext;
…		…
836	};	1080	};
837		1081
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
839		1083
840	#############################################################################	1084	#############################################################################
841	# load/save perl data associated with player->ob objects
842
843	sub all_objects(@) {
844	@_, map all_objects ($_->inv), @_
845	}
846
847	# TODO: compatibility cruft, remove when no longer needed
848	cf::player->attach (
849	on_load => sub {
850	my ($pl, $path) = @_;
851
852	for my $o (all_objects $pl->ob) {
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
854	$o->set_ob_key_value ("_perl_data");
855
856	%$o = %{ Storable::thaw pack "H*", $value };
857	}
858	}
859	},
860	);
861
862	#############################################################################
863		1085
864	=head2 CORE EXTENSIONS	1086	=head2 CORE EXTENSIONS
865		1087
866	Functions and methods that extend core crossfire objects.	1088	Functions and methods that extend core crossfire objects.
867		1089
		1090	=cut
		1091
		1092	package cf::player;
		1093
		1094	use Coro::AIO;
		1095
868	=head3 cf::player	1096	=head3 cf::player
869		1097
870	=over 4	1098	=over 4
871		1099
872	=item cf::player::exists $login	1100	=item cf::player::find $login
873		1101
874	Returns true when the given account exists.	1102	Returns the given player object, loading it if necessary (might block).
875		1103
876	=cut	1104	=cut
877		1105
878	sub cf::player::exists($) {	1106	sub playerdir($) {
879	cf::player::find $_[0]	1107	cf::localdir
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[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
881	}	1252	}
882		1253
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1254	=item $player->ext_reply ($msgid, $msgtype, %msg)
884		1255
885	Sends an ext reply to the player.	1256	Sends an ext reply to the player.
886		1257
887	=cut	1258	=cut
888		1259
889	sub cf::player::ext_reply($$$%) {	1260	sub ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;	1261	my ($self, $id, %msg) = @_;
891		1262
892	$msg{msgid} = $id;	1263	$msg{msgid} = $id;
893		1264
894	$self->send ("ext " . to_json \%msg);	1265	$self->send ("ext " . cf::to_json \%msg);
895	}	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;
896		1667
897	=back	1668	=back
898		1669
899	=head3 cf::object::player	1670	=head3 cf::object::player
900		1671
…		…
938	(ref $cf::CFG{"may_$access"}	1709	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1710	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1711	: $cf::CFG{"may_$access"})
941	}	1712	}
942		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
943	=head3 cf::client	1912	=head3 cf::client
944		1913
945	=over 4	1914	=over 4
946		1915
947	=item $client->send_drawinfo ($text, $flags)	1916	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1959	on_reply => sub {
991	my ($ns, $msg) = @_;	1960	my ($ns, $msg) = @_;
992		1961
993	# this weird shuffling is so that direct followup queries	1962	# this weird shuffling is so that direct followup queries
994	# get handled first	1963	# get handled first
995	my $queue = delete $ns->{query_queue};	1964	my $queue = delete $ns->{query_queue}
		1965	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1966
997	(shift @$queue)->[1]->($msg);	1967	(shift @$queue)->[1]->($msg);
998		1968
999	push @{ $ns->{query_queue} }, @$queue;	1969	push @{ $ns->{query_queue} }, @$queue;
1000		1970
…		…
1006	}	1976	}
1007	}	1977	}
1008	},	1978	},
1009	);	1979	);
1010		1980
1011	=item $client->coro (\&cb)	1981	=item $client->async (\&cb)
1012		1982
1013	Create a new coroutine, running the specified callback. The coroutine will	1983	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	1984	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	1985	or loss of connection).
1016		1986
1017	=cut	1987	=cut
1018		1988
1019	sub cf::client::coro {	1989	sub cf::client::async {
1020	my ($self, $cb) = @_;	1990	my ($self, $cb) = @_;
1021		1991
1022	my $coro; $coro = async {	1992	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1993
1029	$coro->on_destroy (sub {	1994	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1995	delete $self->{_coro}{$coro+0};
1031	});	1996	});
1032		1997
…		…
1204		2169
1205	{	2170	{
1206	my $path = cf::localdir . "/database.pst";	2171	my $path = cf::localdir . "/database.pst";
1207		2172
1208	sub db_load() {	2173	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	2174	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2175	}
1212		2176
1213	my $pid;	2177	my $pid;
1214		2178
1215	sub db_save() {	2179	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	2180	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	2181	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	2182	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	2183	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	2184	rename "$path~", $path;
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2232	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2233	or return;
1271		2234
1272	local $/;	2235	local $/;
1273	*CFG = YAML::Syck::Load <$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	}
1274	}	2250	}
1275		2251
1276	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
1277	cfg_load;	2259	cfg_load;
1278	db_load;	2260	db_load;
1279	load_extensions;	2261	load_extensions;
1280	Event::loop;	2262	Event::loop;
1281	}	2263	}
1282		2264
1283	#############################################################################	2265	#############################################################################
1284	# initialisation	2266	# initialisation and cleanup
1285		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	$map->save;
		2303	}
		2304	warn "end emergency map save\n";
		2305	};
		2306
		2307	warn "leave emergency perl save\n";
		2308	}
		2309
1286	sub _perl_reload() {	2310	sub reload() {
1287	# can/must only be called in main	2311	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2312	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2313	warn "can only reload from main coroutine\n";
1290	return;	2314	return;
1291	}	2315	}
1292		2316
1293	warn "reloading...";	2317	warn "reloading...";
1294		2318
1295	local $FREEZE = 1;	2319	warn "freezing server";
		2320	my $guard = freeze_mainloop;
1296	cf::emergency_save;	2321	cf::emergency_save;
		2322
		2323	warn "sync database to disk";
		2324	cf::db_sync;
		2325	IO::AIO::flush;
1297		2326
1298	eval {	2327	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2328	# if anything goes wrong in here, we should simply crash as we already saved
1300		2329
1301	# cancel all watchers	2330	warn "cancel all watchers";
1302	for (Event::all_watchers) {	2331	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2332	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2333	}
1305		2334
1306	# cancel all extension coros	2335	warn "cancel all extension coros";
1307	$_->cancel for values %EXT_CORO;	2336	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2337	%EXT_CORO = ();
1309		2338
		2339	warn "remove commands";
		2340	%COMMAND = ();
		2341
		2342	warn "remove ext commands";
		2343	%EXTCMD = ();
		2344
1310	# unload all extensions	2345	warn "unload/nuke all extensions";
1311	for (@exts) {	2346	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2347	warn "... unloading $pkg";
1313	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: $@";
1314	}	2354	}
1315		2355
		2356	warn "... nuking $pkg";
		2357	Symbol::delete_package $pkg;
		2358	}
		2359
1316	# unload all modules loaded from $LIBDIR	2360	warn "unload all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2361	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2363
1320	warn "removing <$k>";	2364	warn "removing <$k>";
1321	delete $INC{$k};	2365	delete $INC{$k};
…		…
1328	}	2372	}
1329		2373
1330	Symbol::delete_package $k;	2374	Symbol::delete_package $k;
1331	}	2375	}
1332		2376
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2377	warn "get rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2378	Symbol::delete_package "safe::$_"
1339	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);
1340		2380
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2381	warn "unload cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2382	delete $INC{"cf.pm"};
1346		2383
1347	# don't, removes xs symbols, too,	2384	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2385	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2386	#Symbol::delete_package __PACKAGE__;
1350		2387
1351	# reload cf.pm
1352	warn "reloading cf.pm";	2388	warn "reloading cf.pm";
1353	require cf;	2389	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2391
1356	# load config and database again	2392	warn "load config and database again";
1357	cf::cfg_load;	2393	cf::cfg_load;
1358	cf::db_load;	2394	cf::db_load;
1359		2395
1360	# load extensions
1361	warn "load extensions";	2396	warn "load extensions";
1362	cf::load_extensions;	2397	cf::load_extensions;
1363		2398
1364	# reattach attachments to objects	2399	warn "reattach attachments to objects/players";
1365	warn "reattach";
1366	_global_reattach;	2400	_global_reattach;
		2401	warn "reattach attachments to maps";
		2402	reattach $_ for values %MAP;
1367	};	2403	};
1368		2404
1369	if ($@) {	2405	if ($@) {
1370	warn $@;	2406	warn $@;
1371	warn "error while reloading, exiting.";	2407	warn "error while reloading, exiting.";
1372	exit 1;	2408	exit 1;
1373	}	2409	}
1374		2410
1375	warn "reloaded successfully";	2411	warn "reloaded";
1376	};	2412	};
1377		2413
1378	sub perl_reload() {	2414	#############################################################################
1379	_perl_reload;
1380	}
1381		2415
1382	register "<global>", __PACKAGE__;	2416	unless ($LINK_MAP) {
		2417	$LINK_MAP = cf::map::new;
1383		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} = $LINK_MAP;
		2455	}
		2456
1384	register_command "perl-reload" => sub {	2457	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2458	my ($who, $arg) = @_;
1386		2459
1387	if ($who->flag (FLAG_WIZ)) {	2460	if ($who->flag (FLAG_WIZ)) {
		2461	$who->message ("start of reload.");
		2462	reload;
1388	$who->message ("reloading...");	2463	$who->message ("end of reload.");
1389	_perl_reload;
1390	}	2464	}
1391	};	2465	};
1392		2466
1393	unshift @INC, $LIBDIR;	2467	unshift @INC, $LIBDIR;
1394		2468
…		…
1396	reentrant => 0,	2470	reentrant => 0,
1397	prio => 0,	2471	prio => 0,
1398	at => $NEXT_TICK || $TICK,	2472	at => $NEXT_TICK || $TICK,
1399	data => WF_AUTOCANCEL,	2473	data => WF_AUTOCANCEL,
1400	cb => sub {	2474	cb => sub {
1401	unless ($FREEZE) {	2475	$NOW = Event::time;
		2476
1402	cf::server_tick; # one server iteration	2477	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2478	$RUNTIME += $TICK;
1404	}
1405
1406	$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;
1407		2483
1408	# 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
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410		2486
1411	$TICK_WATCHER->at ($NEXT_TICK);	2487	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1413	},	2489	},
1414	);	2490	);
1415		2491
1416	IO::AIO::max_poll_time $TICK * 0.2;	2492	IO::AIO::max_poll_time $TICK * 0.2;
1417		2493
		2494	Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	2495	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2496	poll => 'r',
1420	prio => 5,	2497	prio => 5,
1421	data => WF_AUTOCANCEL,	2498	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2499	cb => \&IO::AIO::poll_cb,
		2500	);
1423		2501
1424	# we must not ever block the main coroutine	2502	Event->timer (
1425	$Coro::idle = sub {	2503	data => WF_AUTOCANCEL,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2504	after => 0,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2505	interval => 10,
		2506	cb => sub {
1428	(Coro::unblock_sub {	2507	(Coro::unblock_sub {
1429	Event::one_event;	2508	write_runtime
		2509	or warn "ERROR: unable to write runtime file: $!";
1430	})->();	2510	})->();
1431	};	2511	},
		2512	);
		2513
		2514	END { cf::emergency_save }
1432		2515
1433	1	2516	1
1434		2517

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