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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 1.195 by root, Fri Jan 26 20:59:57 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 3.5 ();
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;
42	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	51	our $NEXT_TICK;
44	our $NOW;	52	our $NOW;
45		53
46	our %CFG;	54	our %CFG;
47		55
48	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	57	our $RUNTIME;
50		58
		59	our %PLAYER; # all users
51	our %MAP; # all maps	60	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		69
55	binmode STDOUT;	70	binmode STDOUT;
56	binmode STDERR;	71	binmode STDERR;
57		72
58	# read virtual server time, if available	73	# read virtual server time, if available
…		…
64		79
65	mkdir cf::localdir;	80	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
69		85
70	our %EXT_CORO;	86	our $EMERGENCY_POSITION;
71		87
72	#############################################################################	88	#############################################################################
73		89
74	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
75		91
…		…
99		115
100	=item %cf::CFG	116	=item %cf::CFG
101		117
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
104		127
105	=back	128	=back
106		129
107	=cut	130	=cut
108		131
…		…
112	utf8::encode $msg;	135	utf8::encode $msg;
113		136
114	$msg .= "\n"	137	$msg .= "\n"
115	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
116		139
117	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
118	};	141	};
119	}	142	}
120		143
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		163
141	$Event::DIED = sub {	164	$Event::DIED = sub {
142	warn "error in event callback: @_";	165	warn "error in event callback: @_";
143	};	166	};
144		167
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
150		169
151	=over 4	170	=over 4
152		171
		172	=item dumpval $ref
		173
153	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
154		194
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		196
157	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
158		198
…		…
173		213
174	sub to_json($) {	214	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
177	}	217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
178		282
179	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
180		284
181	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	294	=cut
191		295
192	sub sync_job(&) {	296	sub sync_job(&) {
193	my ($job) = @_;	297	my ($job) = @_;
194		298
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 == $Coro::main) {	299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
209	while ($busy) {	316	while ($busy) {
210	Coro::cede_notself;	317	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	318	}
		319
		320	wantarray ? @res : $res[0]
213	} else {	321	} else {
214	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
215	}	325	}
216
217	wantarray ? @res : $res[0]
218	}	326	}
219		327
220	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
221		329
222	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
224		332
225	=cut	333	=cut
226		334
227	sub coro(&) {	335	sub async_ext(&) {
228	my $cb = shift;	336	my $cb = shift;
229		337
230	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		339
237	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
239	});	342	});
240	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
241		344
242	$coro	345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
		358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		359	and return;
		360
		361	aio_fsync $fh
		362	and return;
		363
		364	close $fh
		365	or return;
		366
		367	aio_rename "$runtime~", $runtime
		368	and return;
		369
		370	1
243	}	371	}
244		372
245	=back	373	=back
246		374
247	=cut	375	=cut
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	507	our @CB_MAP = ();
380		508
381	my %attachment;	509	my %attachment;
382		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
383	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
385		519
386	use sort 'stable';	520	use sort 'stable';
387		521
…		…
558	# object support	692	# object support
559		693
560	sub reattach {	694	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		699
564	my $registry = $obj->registry;	700	my $registry = $obj->registry;
565		701
566	@$registry = ();	702	@$registry = ();
567		703
…		…
660	or return;	796	or return;
661		797
662	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
664	or return;	800	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
666	}	802	}
667		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	806	return ($data, $av);
669	}	807	}
670		808
671	#############################################################################	809	#############################################################################
672	# command handling &c	810	# command handling &c
…		…
697	=cut	835	=cut
698		836
699	sub register_extcmd {	837	sub register_extcmd {
700	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
701		839
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
706	}	841	}
707		842
708	cf::player->attach (	843	cf::player->attach (
709	on_command => sub {	844	on_command => sub {
710	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
723		858
724	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
725		860
726	if (ref $msg) {	861	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	865	}
731	}	866	}
732	} else {	867	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		870
736	cf::override;	871	cf::override;
737	},	872	},
738	);	873	);
739		874
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	875	sub load_extension {
747	my ($path) = @_;	876	my ($path) = @_;
748		877
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	879	my $base = $1;
751	my $pkg = $1;	880	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
754		883
755	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
756		885
757	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
758	or die "$path: $!";	887	or die "$path: $!";
759		888
760	my $source =	889	my $source =
761	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
764	. "\n};\n1";	893	. "\n};\n1";
765		894
766	eval $source	895	unless (eval $source) {
767	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
768	: "extension disabled.\n";	897	: "extension disabled.\n";
769		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
770	push @exts, $pkg;	899	warn $@;
771	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
772		901	exit 1;
773	# no strict 'refs';	902	}
774	# @{"$pkg\::ISA"} = ext::;	903	die $@;
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	# }	904	}
789		905
790	# remove commands	906	push @EXTS, $pkg;
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	}	907	}
815		908
816	sub load_extensions {	909	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	911	next unless -r $ext;
…		…
822	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
823	}	916	}
824	}	917	}
825		918
826	#############################################################################	919	#############################################################################
827	# load/save/clean perl data associated with a map
828		920
829	*cf::mapsupport::on_clean = sub {	921	=head2 CORE EXTENSIONS
		922
		923	Functions and methods that extend core crossfire objects.
		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
		931	=head3 cf::player
		932
		933	=over 4
		934
		935	=item cf::player::find $login
		936
		937	Returns the given player object, loading it if necessary (might block).
		938
		939	=cut
		940
		941	sub playerdir($) {
		942	cf::localdir
		943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
		1088	}
		1089
		1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1091
		1092	Sends an ext reply to the player.
		1093
		1094	=cut
		1095
		1096	sub ext_reply($$$%) {
		1097	my ($self, $id, %msg) = @_;
		1098
		1099	$msg{msgid} = $id;
		1100
		1101	$self->send ("ext " . cf::to_json \%msg);
		1102	}
		1103
		1104	package cf;
		1105
		1106	=back
		1107
		1108
		1109	=head3 cf::map
		1110
		1111	=over 4
		1112
		1113	=cut
		1114
		1115	package cf::map;
		1116
		1117	use Fcntl;
		1118	use Coro::AIO;
		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
		1124	our $MAX_RESET = 3600;
		1125	our $DEFAULT_RESET = 3000;
		1126
		1127	sub generate_random_map {
		1128	my ($self, $rmp) = @_;
		1129	# mit "rum" bekleckern, nicht
		1130	$self->_create_random_map (
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1270	}
		1271
		1272	# and all this just because we cannot iterate over
		1273	# all maps in C++...
		1274	sub change_all_map_light {
		1275	my ($change) = @_;
		1276
		1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
		1279	}
		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
		1289	sub load_header_from($) {
		1290	my ($self, $path) = @_;
		1291
		1292	utf8::encode $path;
		1293	aio_open $path, O_RDONLY, 0
		1294	or return;
		1295
		1296	$self->_load_header ($path)
		1297	or return;
		1298
		1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
		1342	or return;
		1343	$self->prepare_orig;
		1344	}
		1345
		1346	1
		1347	}
		1348
		1349	sub find;
		1350	sub find {
		1351	my ($path, $origin) = @_;
		1352
		1353	$path = normalise $path, $origin && $origin->path;
		1354
		1355	cf::lock_wait "map_find:$path";
		1356
		1357	$cf::MAP{$path} || do {
		1358	my $guard = cf::lock_acquire "map_find:$path";
		1359	my $map = new_from_path cf::map $path
		1360	or return;
		1361
		1362	$map->{last_save} = $cf::RUNTIME;
		1363
		1364	$map->load_header
		1365	or return;
		1366
		1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
		1370	$map->reset;
		1371	undef $guard;
		1372	return find $path;
		1373	}
		1374
		1375	$cf::MAP{$path} = $map
		1376	}
		1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
		1381
		1382	sub load {
		1383	my ($self) = @_;
		1384
		1385	my $path = $self->{path};
		1386	my $guard = cf::lock_acquire "map_load:$path";
		1387
		1388	return if $self->in_memory != cf::MAP_SWAPPED;
		1389
		1390	$self->in_memory (cf::MAP_LOADING);
		1391
		1392	$self->alloc;
		1393
		1394	$self->pre_load;
		1395
		1396	$self->_load_objects ($self->{load_path}, 1)
		1397	or return;
		1398
		1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1400	if delete $self->{load_original};
		1401
		1402	if (my $uniq = $self->uniq_path) {
		1403	utf8::encode $uniq;
		1404	if (aio_open $uniq, O_RDONLY, 0) {
		1405	$self->clear_unique_items;
		1406	$self->_load_objects ($uniq, 0);
		1407	}
		1408	}
		1409
		1410	Coro::cede;
		1411
		1412	# now do the right thing for maps
		1413	$self->link_multipart_objects;
		1414
		1415	unless ($self->{deny_activate}) {
		1416	$self->decay_objects;
		1417	$self->fix_auto_apply;
		1418	$self->update_buttons;
		1419	Coro::cede;
		1420	$self->set_darkness_map;
		1421	$self->difficulty ($self->estimate_difficulty)
		1422	unless $self->difficulty;
		1423	Coro::cede;
		1424	$self->activate;
		1425	}
		1426
		1427	$self->post_load;
		1428
		1429	$self->in_memory (cf::MAP_IN_MEMORY);
		1430	}
		1431
		1432	sub customise_for {
		1433	my ($self, $ob) = @_;
		1434
		1435	return find "~" . $ob->name . "/" . $self->{path}
		1436	if $self->per_player;
		1437
		1438	$self
		1439	}
		1440
		1441	# find and load all maps in the 3x3 area around a map
		1442	sub load_diag {
830	my ($map) = @_;	1443	my ($map) = @_;
831		1444
832	my $path = $map->tmpname;	1445	my @diag; # diagonal neighbours
833	defined $path or return;
834		1446
835	unlink "$path.pst";	1447	for (0 .. 3) {
836	};	1448	my $neigh = $map->tile_path ($_)
		1449	or next;
		1450	$neigh = find $neigh, $map
		1451	or next;
		1452	$neigh->load;
837		1453
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1456	}
839		1457
840	#############################################################################	1458	for (@diag) {
841	# load/save perl data associated with player->ob objects	1459	my $neigh = find @$_
842		1460	or next;
843	sub all_objects(@) {	1461	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1462	}
845	}	1463	}
846		1464
847	# TODO: compatibility cruft, remove when no longer needed	1465	sub find_sync {
848	cf::player->attach (	1466	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1467
852	for my $o (all_objects $pl->ob) {	1468	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1469	}
854	$o->set_ob_key_value ("_perl_data");
855		1470
856	%$o = %{ Storable::thaw pack "H*", $value };	1471	sub do_load_sync {
		1472	my ($map) = @_;
		1473
		1474	cf::sync_job { $map->load };
		1475	}
		1476
		1477	our %MAP_PREFETCH;
		1478	our $MAP_PREFETCHER = undef;
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = normalise $path, $origin && $origin->{path};
		1484
		1485	if (my $map = $cf::MAP{$path}) {
		1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1487	}
		1488
		1489	undef $MAP_PREFETCH{$path};
		1490	$MAP_PREFETCHER ||= cf::async {
		1491	while (%MAP_PREFETCH) {
		1492	for my $path (keys %MAP_PREFETCH) {
		1493	my $map = find $path
		1494	or next;
		1495	$map->load;
		1496
		1497	delete $MAP_PREFETCH{$path};
857	}	1498	}
858	}	1499	}
		1500	undef $MAP_PREFETCHER;
		1501	};
		1502	$MAP_PREFETCHER->prio (6);
		1503
		1504	()
		1505	}
		1506
		1507	sub save {
		1508	my ($self) = @_;
		1509
		1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1511
		1512	$self->{last_save} = $cf::RUNTIME;
		1513
		1514	return unless $self->dirty;
		1515
		1516	my $save = $self->save_path; utf8::encode $save;
		1517	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1518
		1519	$self->{load_path} = $save;
		1520
		1521	return if $self->{deny_save};
		1522
		1523	local $self->{last_access} = $self->last_access;#d#
		1524
		1525	cf::async {
		1526	$_->contr->save for $self->players;
		1527	};
		1528
		1529	if ($uniq) {
		1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1532	} else {
		1533	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	1534	}
860	);	1535	}
861		1536
862	#############################################################################	1537	sub swap_out {
		1538	my ($self) = @_;
863		1539
864	=head2 CORE EXTENSIONS	1540	# save first because save cedes
		1541	$self->save;
865		1542
866	Functions and methods that extend core crossfire objects.	1543	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		1544
868	=head3 cf::player	1545	return if $self->players;
		1546	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1547	return if $self->{deny_save};
		1548
		1549	$self->clear;
		1550	$self->in_memory (cf::MAP_SWAPPED);
		1551	}
		1552
		1553	sub reset_at {
		1554	my ($self) = @_;
		1555
		1556	# TODO: safety, remove and allow resettable per-player maps
		1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1558	return 1e99 if $self->{deny_reset};
		1559
		1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1562
		1563	$time + $to
		1564	}
		1565
		1566	sub should_reset {
		1567	my ($self) = @_;
		1568
		1569	$self->reset_at <= $cf::RUNTIME
		1570	}
		1571
		1572	sub reset {
		1573	my ($self) = @_;
		1574
		1575	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1576
		1577	return if $self->players;
		1578	return if $self->isa ("ext::map_per_player");#d#
		1579
		1580	warn "resetting map ", $self->path;#d#
		1581
		1582	delete $cf::MAP{$self->path};
		1583
		1584	$self->in_memory (cf::MAP_SWAPPED);
		1585	$self->clear;
		1586
		1587	$_->clear_links_to ($self) for values %cf::MAP;
		1588
		1589	$self->unlink_save;
		1590	$self->destroy;
		1591	}
		1592
		1593	my $nuke_counter = "aaaa";
		1594
		1595	sub nuke {
		1596	my ($self) = @_;
		1597
		1598	delete $cf::MAP{$self->path};
		1599
		1600	$self->unlink_save;
		1601
		1602	bless $self, "cf::map";
		1603	delete $self->{deny_reset};
		1604	$self->{deny_save} = 1;
		1605	$self->reset_timeout (1);
		1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1607
		1608	$cf::MAP{$self->path} = $self;
		1609
		1610	$self->reset; # polite request, might not happen
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of paths of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	s/\.map$//;
		1632	push @paths, $_;
		1633	}
		1634
		1635	\@paths
		1636	}
		1637
		1638	package cf;
		1639
		1640	=back
		1641
		1642	=head3 cf::object
		1643
		1644	=cut
		1645
		1646	package cf::object;
869		1647
870	=over 4	1648	=over 4
871		1649
872	=item cf::player::exists $login	1650	=item $ob->inv_recursive
873		1651
874	Returns true when the given account exists.	1652	Returns the inventory of the object _and_ their inventories, recursively.
875		1653
876	=cut	1654	=cut
877		1655
878	sub cf::player::exists($) {	1656	sub inv_recursive_;
879	cf::player::find $_[0]	1657	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1658	map { $_, inv_recursive_ $_->inv } @_
881	}	1659	}
882		1660
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1661	sub inv_recursive {
884		1662	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	1663	}
		1664
		1665	package cf;
896		1666
897	=back	1667	=back
898		1668
899	=head3 cf::object::player	1669	=head3 cf::object::player
900		1670
…		…
938	(ref $cf::CFG{"may_$access"}	1708	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1709	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1710	: $cf::CFG{"may_$access"})
941	}	1711	}
942		1712
		1713	=item $player_object->enter_link
		1714
		1715	Freezes the player and moves him/her to a special map (C<{link}>).
		1716
		1717	The player should be reasonably safe there for short amounts of time. You
		1718	I<MUST> call C<leave_link> as soon as possible, though.
		1719
		1720	Will never block.
		1721
		1722	=item $player_object->leave_link ($map, $x, $y)
		1723
		1724	Moves the player out of the special C<{link}> map onto the specified
		1725	map. If the map is not valid (or omitted), the player will be moved back
		1726	to the location he/she was before the call to C<enter_link>, or, if that
		1727	fails, to the emergency map position.
		1728
		1729	Might block.
		1730
		1731	=cut
		1732
		1733	sub link_map {
		1734	unless ($LINK_MAP) {
		1735	$LINK_MAP = cf::map::find "{link}"
		1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1737	$LINK_MAP->load;
		1738	}
		1739
		1740	$LINK_MAP
		1741	}
		1742
		1743	sub cf::object::player::enter_link {
		1744	my ($self) = @_;
		1745
		1746	$self->deactivate_recursive;
		1747
		1748	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1749
		1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1751	if $self->map;
		1752
		1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1754	}
		1755
		1756	sub cf::object::player::leave_link {
		1757	my ($self, $map, $x, $y) = @_;
		1758
		1759	my $link_pos = delete $self->{_link_pos};
		1760
		1761	unless ($map) {
		1762	# restore original map position
		1763	($map, $x, $y) = @{ $link_pos || [] };
		1764	$map = cf::map::find $map;
		1765
		1766	unless ($map) {
		1767	($map, $x, $y) = @$EMERGENCY_POSITION;
		1768	$map = cf::map::find $map
		1769	or die "FATAL: cannot load emergency map\n";
		1770	}
		1771	}
		1772
		1773	($x, $y) = (-1, -1)
		1774	unless (defined $x) && (defined $y);
		1775
		1776	# use -1 or undef as default coordinates, not 0, 0
		1777	($x, $y) = ($map->enter_x, $map->enter_y)
		1778	if $x <=0 && $y <= 0;
		1779
		1780	$map->load;
		1781	$map->load_diag;
		1782
		1783	return unless $self->contr->active;
		1784	$self->activate_recursive;
		1785	$self->enter_map ($map, $x, $y);
		1786	}
		1787
		1788	cf::player->attach (
		1789	on_logout => sub {
		1790	my ($pl) = @_;
		1791
		1792	# abort map switching before logout
		1793	if ($pl->ob->{_link_pos}) {
		1794	cf::sync_job {
		1795	$pl->ob->leave_link
		1796	};
		1797	}
		1798	},
		1799	on_login => sub {
		1800	my ($pl) = @_;
		1801
		1802	# try to abort aborted map switching on player login :)
		1803	# should happen only on crashes
		1804	if ($pl->ob->{_link_pos}) {
		1805	$pl->ob->enter_link;
		1806	(async {
		1807	# we need this sleep as the login has a concurrent enter_exit running
		1808	# and this sleep increases chances of the player not ending up in scorn
		1809	$pl->ob->reply (undef,
		1810	"There was an internal problem at your last logout, "
		1811	. "the server will try to bring you to your intended destination in a second.",
		1812	cf::NDI_RED);
		1813	Coro::Timer::sleep 1;
		1814	$pl->ob->leave_link;
		1815	})->prio (2);
		1816	}
		1817	},
		1818	);
		1819
		1820	=item $player_object->goto ($path, $x, $y)
		1821
		1822	=cut
		1823
		1824	sub cf::object::player::goto {
		1825	my ($self, $path, $x, $y) = @_;
		1826
		1827	$self->enter_link;
		1828
		1829	(async {
		1830	my $map = cf::map::find $path;
		1831	$map = $map->customise_for ($self) if $map;
		1832
		1833	# warn "entering ", $map->path, " at ($x, $y)\n"
		1834	# if $map;
		1835
		1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1837
		1838	$self->leave_link ($map, $x, $y);
		1839	})->prio (1);
		1840	}
		1841
		1842	=item $player_object->enter_exit ($exit_object)
		1843
		1844	=cut
		1845
		1846	sub parse_random_map_params {
		1847	my ($spec) = @_;
		1848
		1849	my $rmp = { # defaults
		1850	xsize => (cf::rndm 15, 40),
		1851	ysize => (cf::rndm 15, 40),
		1852	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1853	#layout => string,
		1854	};
		1855
		1856	for (split /\n/, $spec) {
		1857	my ($k, $v) = split /\s+/, $_, 2;
		1858
		1859	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1860	}
		1861
		1862	$rmp
		1863	}
		1864
		1865	sub prepare_random_map {
		1866	my ($exit) = @_;
		1867
		1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1869
		1870	# all this does is basically replace the /! path by
		1871	# a new random map path (?random/...) with a seed
		1872	# that depends on the exit object
		1873
		1874	my $rmp = parse_random_map_params $exit->msg;
		1875
		1876	if ($exit->map) {
		1877	$rmp->{region} = $exit->map->region_name;
		1878	$rmp->{origin_map} = $exit->map->path;
		1879	$rmp->{origin_x} = $exit->x;
		1880	$rmp->{origin_y} = $exit->y;
		1881	}
		1882
		1883	$rmp->{random_seed} ||= $exit->random_seed;
		1884
		1885	my $data = cf::to_json $rmp;
		1886	my $md5 = Digest::MD5::md5_hex $data;
		1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1888
		1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1890	aio_write $fh, 0, (length $data), $data, 0;
		1891	undef $fh;
		1892	aio_rename "$meta~", $meta;
		1893
		1894	$exit->slaying ("?random/$md5");
		1895	$exit->msg (undef);
		1896	}
		1897	}
		1898
		1899	sub cf::object::player::enter_exit {
		1900	my ($self, $exit) = @_;
		1901
		1902	return unless $self->type == cf::PLAYER;
		1903
		1904	if ($exit->slaying eq "/!") {
		1905	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1906	cf::sync_job { prepare_random_map $exit };
		1907	}
		1908
		1909	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1910	my $hp = $exit->stats->hp;
		1911	my $sp = $exit->stats->sp;
		1912
		1913	$self->enter_link;
		1914
		1915	(async {
		1916	$self->deactivate_recursive; # just to be sure
		1917	unless (eval {
		1918	$self->goto ($slaying, $hp, $sp);
		1919
		1920	1;
		1921	}) {
		1922	$self->message ("Something went wrong deep within the crossfire server. "
		1923	. "I'll try to bring you back to the map you were before. "
		1924	. "Please report this to the dungeon master!",
		1925	cf::NDI_UNIQUE | cf::NDI_RED);
		1926
		1927	warn "ERROR in enter_exit: $@";
		1928	$self->leave_link;
		1929	}
		1930	})->prio (1);
		1931	}
		1932
943	=head3 cf::client	1933	=head3 cf::client
944		1934
945	=over 4	1935	=over 4
946		1936
947	=item $client->send_drawinfo ($text, $flags)	1937	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1980	on_reply => sub {
991	my ($ns, $msg) = @_;	1981	my ($ns, $msg) = @_;
992		1982
993	# this weird shuffling is so that direct followup queries	1983	# this weird shuffling is so that direct followup queries
994	# get handled first	1984	# get handled first
995	my $queue = delete $ns->{query_queue};	1985	my $queue = delete $ns->{query_queue}
		1986	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1987
997	(shift @$queue)->[1]->($msg);	1988	(shift @$queue)->[1]->($msg);
998		1989
999	push @{ $ns->{query_queue} }, @$queue;	1990	push @{ $ns->{query_queue} }, @$queue;
1000		1991
…		…
1006	}	1997	}
1007	}	1998	}
1008	},	1999	},
1009	);	2000	);
1010		2001
1011	=item $client->coro (\&cb)	2002	=item $client->async (\&cb)
1012		2003
1013	Create a new coroutine, running the specified callback. The coroutine will	2004	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2005	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2006	or loss of connection).
1016		2007
1017	=cut	2008	=cut
1018		2009
1019	sub cf::client::coro {	2010	sub cf::client::async {
1020	my ($self, $cb) = @_;	2011	my ($self, $cb) = @_;
1021		2012
1022	my $coro; $coro = async {	2013	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2014
1029	$coro->on_destroy (sub {	2015	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2016	delete $self->{_coro}{$coro+0};
1031	});	2017	});
1032		2018
…		…
1204		2190
1205	{	2191	{
1206	my $path = cf::localdir . "/database.pst";	2192	my $path = cf::localdir . "/database.pst";
1207		2193
1208	sub db_load() {	2194	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	2195	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2196	}
1212		2197
1213	my $pid;	2198	my $pid;
1214		2199
1215	sub db_save() {	2200	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	2201	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	2202	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	2203	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	2204	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	2205	rename "$path~", $path;
…		…
1228	sub db_sync() {	2212	sub db_sync() {
1229	db_save if $dirty;	2213	db_save if $dirty;
1230	undef $dirty;	2214	undef $dirty;
1231	}	2215	}
1232		2216
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2217	my $idle = Event->idle (
1234	db_sync;	2218	reentrant => 0,
		2219	min => 10,
		2220	max => 20,
		2221	repeat => 0,
		2222	data => WF_AUTOCANCEL,
		2223	cb => \&db_sync,
1235	});	2224	);
1236		2225
1237	sub db_dirty() {	2226	sub db_dirty() {
1238	$dirty = 1;	2227	$dirty = 1;
1239	$idle->start;	2228	$idle->start;
1240	}	2229	}
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2258	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2259	or return;
1271		2260
1272	local $/;	2261	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2262	*CFG = YAML::Syck::Load <$fh>;
		2263
		2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2265
		2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2268
		2269	if (exists $CFG{mlockall}) {
		2270	eval {
		2271	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2272	and die "WARNING: m(un)lockall failed: $!\n";
		2273	};
		2274	warn $@ if $@;
		2275	}
1274	}	2276	}
1275		2277
1276	sub main {	2278	sub main {
		2279	# we must not ever block the main coroutine
		2280	local $Coro::idle = sub {
		2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2282	(async {
		2283	Event::one_event;
		2284	})->prio (Coro::PRIO_MAX);
		2285	};
		2286
1277	cfg_load;	2287	cfg_load;
1278	db_load;	2288	db_load;
1279	load_extensions;	2289	load_extensions;
		2290
		2291	$TICK_WATCHER->start;
1280	Event::loop;	2292	Event::loop;
1281	}	2293	}
1282		2294
1283	#############################################################################	2295	#############################################################################
1284	# initialisation	2296	# initialisation and cleanup
1285		2297
		2298	# install some emergency cleanup handlers
		2299	BEGIN {
		2300	for my $signal (qw(INT HUP TERM)) {
		2301	Event->signal (
		2302	reentrant => 0,
		2303	data => WF_AUTOCANCEL,
		2304	signal => $signal,
		2305	prio => 0,
		2306	cb => sub {
		2307	cf::cleanup "SIG$signal";
		2308	},
		2309	);
		2310	}
		2311	}
		2312
		2313	sub emergency_save() {
		2314	my $freeze_guard = cf::freeze_mainloop;
		2315
		2316	warn "enter emergency perl save\n";
		2317
		2318	cf::sync_job {
		2319	# use a peculiar iteration method to avoid tripping on perl
		2320	# refcount bugs in for. also avoids problems with players
		2321	# and maps saved/destroyed asynchronously.
		2322	warn "begin emergency player save\n";
		2323	for my $login (keys %cf::PLAYER) {
		2324	my $pl = $cf::PLAYER{$login} or next;
		2325	$pl->valid or next;
		2326	$pl->save;
		2327	}
		2328	warn "end emergency player save\n";
		2329
		2330	warn "begin emergency map save\n";
		2331	for my $path (keys %cf::MAP) {
		2332	my $map = $cf::MAP{$path} or next;
		2333	$map->valid or next;
		2334	$map->save;
		2335	}
		2336	warn "end emergency map save\n";
		2337	};
		2338
		2339	warn "leave emergency perl save\n";
		2340	}
		2341
1286	sub _perl_reload() {	2342	sub reload() {
1287	# can/must only be called in main	2343	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2344	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2345	warn "can only reload from main coroutine";
1290	return;	2346	return;
1291	}	2347	}
1292		2348
1293	warn "reloading...";	2349	warn "reloading...";
1294		2350
1295	local $FREEZE = 1;	2351	warn "cancelling server ticker";
		2352	$TICK_WATCHER->cancel;
		2353
1296	cf::emergency_save;	2354	cf::emergency_save;
1297		2355
1298	eval {	2356	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2357	# if anything goes wrong in here, we should simply crash as we already saved
1300		2358
1301	# cancel all watchers	2359	warn "syncing database to disk";
		2360	cf::db_sync;
		2361
		2362	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2363	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2364	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2365	}
1305		2366
		2367	warn "flushing outstanding aio requests";
		2368	for (;;) {
		2369	IO::AIO::flush;
		2370	Coro::cede;
		2371	last unless IO::AIO::nreqs;
		2372	warn "iterate...";
		2373	}
		2374
1306	# cancel all extension coros	2375	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2376	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2377	%EXT_CORO = ();
1309		2378
1310	# unload all extensions	2379	warn "removing commands";
1311	for (@exts) {	2380	%COMMAND = ();
		2381
		2382	warn "removing ext commands";
		2383	%EXTCMD = ();
		2384
		2385	warn "unloading/nuking all extensions";
		2386	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2387	warn "... unloading $pkg";
1313	unload_extension $_;	2388
		2389	if (my $cb = $pkg->can ("unload")) {
		2390	eval {
		2391	$cb->($pkg);
		2392	1
		2393	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2394	}
1315		2395
		2396	warn "... nuking $pkg";
		2397	Symbol::delete_package $pkg;
		2398	}
		2399
1316	# unload all modules loaded from $LIBDIR	2400	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2401	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2402	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2403
1320	warn "removing <$k>";	2404	warn "... unloading $k";
1321	delete $INC{$k};	2405	delete $INC{$k};
1322		2406
1323	$k =~ s/\.pm$//;	2407	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2408	$k =~ s/\//::/g;
1325		2409
…		…
1328	}	2412	}
1329		2413
1330	Symbol::delete_package $k;	2414	Symbol::delete_package $k;
1331	}	2415	}
1332		2416
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2417	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2418	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2419	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2420
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2421	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2422	delete $INC{"cf.pm"};
1346		2423
1347	# don't, removes xs symbols, too,	2424	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2425	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2426	#Symbol::delete_package __PACKAGE__;
1350		2427
1351	# reload cf.pm	2428	warn "unload completed, starting to reload now";
		2429
1352	warn "reloading cf.pm";	2430	warn "reloading cf.pm";
1353	require cf;	2431	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2432	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2433
1356	# load config and database again	2434	warn "loading config and database again";
1357	cf::cfg_load;	2435	cf::cfg_load;
1358	cf::db_load;	2436	cf::db_load;
1359		2437
1360	# load extensions
1361	warn "load extensions";	2438	warn "loading extensions";
1362	cf::load_extensions;	2439	cf::load_extensions;
1363		2440
1364	# reattach attachments to objects	2441	warn "reattaching attachments to objects/players";
1365	warn "reattach";
1366	_global_reattach;	2442	_global_reattach;
		2443	warn "reattaching attachments to maps";
		2444	reattach $_ for values %MAP;
		2445
		2446	warn "restarting server ticker";
		2447
		2448	$TICK_WATCHER->start;
1367	};	2449	};
1368		2450
1369	if ($@) {	2451	if ($@) {
1370	warn $@;	2452	warn $@;
1371	warn "error while reloading, exiting.";	2453	warn "error while reloading, exiting.";
1372	exit 1;	2454	exit 1;
1373	}	2455	}
1374		2456
1375	warn "reloaded successfully";	2457	warn "reloaded";
1376	};	2458	};
1377		2459
1378	sub perl_reload() {	2460	our $RELOAD_WATCHER; # used only during reload
1379	_perl_reload;
1380	}
1381		2461
1382	register "<global>", __PACKAGE__;
1383
1384	register_command "perl-reload" => sub {	2462	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2463	my ($who, $arg) = @_;
1386		2464
1387	if ($who->flag (FLAG_WIZ)) {	2465	if ($who->flag (FLAG_WIZ)) {
1388	$who->message ("reloading...");	2466	$who->message ("reloading server.");
1389	_perl_reload;	2467
		2468	# doing reload synchronously and two reloads happen back-to-back,
		2469	# coro crashes during coro_state_free->destroy here.
		2470
		2471	$RELOAD_WATCHER ||= Event->timer (
		2472	reentrant => 0,
		2473	after => 0,
		2474	data => WF_AUTOCANCEL,
		2475	cb => sub {
		2476	reload;
		2477	undef $RELOAD_WATCHER;
		2478	},
		2479	);
1390	}	2480	}
1391	};	2481	};
1392		2482
1393	unshift @INC, $LIBDIR;	2483	unshift @INC, $LIBDIR;
		2484
		2485	my $bug_warning = 0;
1394		2486
1395	$TICK_WATCHER = Event->timer (	2487	$TICK_WATCHER = Event->timer (
1396	reentrant => 0,	2488	reentrant => 0,
		2489	parked => 1,
1397	prio => 0,	2490	prio => 0,
1398	at => $NEXT_TICK || $TICK,	2491	at => $NEXT_TICK || $TICK,
1399	data => WF_AUTOCANCEL,	2492	data => WF_AUTOCANCEL,
1400	cb => sub {	2493	cb => sub {
1401	unless ($FREEZE) {	2494	if ($Coro::current != $Coro::main) {
		2495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2496	unless ++$bug_warning > 10;
		2497	return;
		2498	}
		2499
		2500	$NOW = Event::time;
		2501
1402	cf::server_tick; # one server iteration	2502	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2503	$RUNTIME += $TICK;
1404	}
1405
1406	$NEXT_TICK += $TICK;	2504	$NEXT_TICK += $TICK;
		2505
		2506	$WAIT_FOR_TICK->broadcast;
		2507	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2508
		2509	Event::sweep;
		2510	Coro::cede_notself;
		2511
		2512	# my $AFTER = Event::time;
		2513	# warn $AFTER - $NOW;#d#
1407		2514
1408	# if we are delayed by four ticks or more, skip them all	2515	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2516	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410		2517
1411	$TICK_WATCHER->at ($NEXT_TICK);	2518	$TICK_WATCHER->at ($NEXT_TICK);
1412	$TICK_WATCHER->start;	2519	$TICK_WATCHER->start;
1413	},	2520	},
1414	);	2521	);
1415		2522
1416	IO::AIO::max_poll_time $TICK * 0.2;	2523	IO::AIO::max_poll_time $TICK * 0.1;
1417		2524
		2525	undef $Coro::AIO::WATCHER;
		2526	$AIO_POLL_WATCHER = Event->io (
		2527	reentrant => 0,
1418	Event->io (fd => IO::AIO::poll_fileno,	2528	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2529	poll => 'r',
1420	prio => 5,	2530	prio => 6,
1421	data => WF_AUTOCANCEL,	2531	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2532	cb => \&IO::AIO::poll_cb,
		2533	);
1423		2534
1424	# we must not ever block the main coroutine	2535	$WRITE_RUNTIME_WATCHER = Event->timer (
1425	$Coro::idle = sub {	2536	reentrant => 0,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2537	data => WF_AUTOCANCEL,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2538	after => 1,
		2539	interval => 10,
		2540	prio => 6, # keep it lowest so it acts like a watchdog
1428	(Coro::unblock_sub {	2541	cb => Coro::unblock_sub {
1429	Event::one_event;	2542	write_runtime
1430	})->();	2543	or warn "ERROR: unable to write runtime file: $!";
1431	};	2544	},
		2545	);
		2546
		2547	END { cf::emergency_save }
1432		2548
1433	1	2549	1
1434		2550

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