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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.185 by root, Fri Jan 19 23:32:52 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 3.4 ();
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 $json
158		198
…		…
174	sub to_json($) {	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	}
178		218
179	# main coro must never ever "block" except in Event	219	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	220
181	# and waiting in Event while the server is otherwise frozen	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	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
182	sub sync_job(&) {	296	sub sync_job(&) {
183	my ($job) = @_;	297	my ($job) = @_;
184		298
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($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;
197	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
198	while ($busy) {	316	while ($busy) {
199	Coro::cede_notself;	317	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	318	}
		319
		320	wantarray ? @res : $res[0]
202	} else {	321	} else {
203	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
204	}	325	}
205
206	wantarray ? @res : $res[0]
207	}	326	}
208		327
209	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
210		329
211	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
213		332
214	=cut	333	=cut
215		334
216	sub coro(&) {	335	sub async_ext(&) {
217	my $cb = shift;	336	my $cb = shift;
218		337
219	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		339
226	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
228	});	342	});
229	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
230		344
231	$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 + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		356	and return;
		357
		358	aio_fsync $fh
		359	and return;
		360
		361	close $fh
		362	or return;
		363
		364	aio_rename "$runtime~", $runtime
		365	and return;
		366
		367	1
232	}	368	}
233		369
234	=back	370	=back
235		371
236	=cut	372	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	504	our @CB_MAP = ();
369		505
370	my %attachment;	506	my %attachment;
371		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
372	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
374		516
375	use sort 'stable';	517	use sort 'stable';
376		518
…		…
547	# object support	689	# object support
548		690
549	sub reattach {	691	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	692	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		696
553	my $registry = $obj->registry;	697	my $registry = $obj->registry;
554		698
555	@$registry = ();	699	@$registry = ();
556		700
…		…
649	or return;	793	or return;
650		794
651	unless (aio_stat "$filename.pst") {	795	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	796	(aio_load "$filename.pst", $av) >= 0
653	or return;	797	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	798	$av = eval { (Storable::thaw $av)->{objs} };
655	}	799	}
656		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	803	return ($data, $av);
658	}	804	}
659		805
660	#############################################################################	806	#############################################################################
661	# command handling &c	807	# command handling &c
…		…
686	=cut	832	=cut
687		833
688	sub register_extcmd {	834	sub register_extcmd {
689	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
690		836
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
695	}	838	}
696		839
697	cf::player->attach (	840	cf::player->attach (
698	on_command => sub {	841	on_command => sub {
699	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
712		855
713	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
714		857
715	if (ref $msg) {	858	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	862	}
720	}	863	}
721	} else {	864	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		867
725	cf::override;	868	cf::override;
726	},	869	},
727	);	870	);
728		871
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	872	sub load_extension {
736	my ($path) = @_;	873	my ($path) = @_;
737		874
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	876	my $base = $1;
740	my $pkg = $1;	877	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
743		880
744	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
745		882
746	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
747	or die "$path: $!";	884	or die "$path: $!";
748		885
749	my $source =	886	my $source =
750	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
753	. "\n};\n1";	890	. "\n};\n1";
754		891
755	eval $source	892	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	894	: "extension disabled.\n";
758		895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	896	warn $@;
760	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
761		898	exit 1;
762	# no strict 'refs';	899	}
763	# @{"$pkg\::ISA"} = ext::;	900	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	901	}
778		902
779	# remove commands	903	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	904	}
804		905
805	sub load_extensions {	906	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	908	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
812	}	913	}
813	}	914	}
814		915
815	#############################################################################	916	#############################################################################
816	# load/save/clean perl data associated with a map
817		917
818	*cf::mapsupport::on_clean = sub {	918	=head2 CORE EXTENSIONS
		919
		920	Functions and methods that extend core crossfire objects.
		921
		922	=cut
		923
		924	package cf::player;
		925
		926	use Coro::AIO;
		927
		928	=head3 cf::player
		929
		930	=over 4
		931
		932	=item cf::player::find $login
		933
		934	Returns the given player object, loading it if necessary (might block).
		935
		936	=cut
		937
		938	sub playerdir($) {
		939	cf::localdir
		940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat path $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} || do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} || do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
		975	}
		976	}
		977	}
		978
		979	sub save($) {
		980	my ($pl) = @_;
		981
		982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
		1085	}
		1086
		1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1088
		1089	Sends an ext reply to the player.
		1090
		1091	=cut
		1092
		1093	sub ext_reply($$$%) {
		1094	my ($self, $id, %msg) = @_;
		1095
		1096	$msg{msgid} = $id;
		1097
		1098	$self->send ("ext " . cf::to_json \%msg);
		1099	}
		1100
		1101	package cf;
		1102
		1103	=back
		1104
		1105
		1106	=head3 cf::map
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
		1112	package cf::map;
		1113
		1114	use Fcntl;
		1115	use Coro::AIO;
		1116
		1117	use overload
		1118	'""' => \&as_string,
		1119	fallback => 1;
		1120
		1121	our $MAX_RESET = 3600;
		1122	our $DEFAULT_RESET = 3000;
		1123
		1124	sub generate_random_map {
		1125	my ($self, $rmp) = @_;
		1126	# mit "rum" bekleckern, nicht
		1127	$self->_create_random_map (
		1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1131	$rmp->{exit_on_final_map},
		1132	$rmp->{xsize}, $rmp->{ysize},
		1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1138	(cf::region::find $rmp->{region}), $rmp->{custom}
		1139	)
		1140	}
		1141
		1142	sub register {
		1143	my (undef, $regex) = @_;
		1144	my $pkg = caller;
		1145
		1146	no strict;
		1147	push @{"$pkg\::ISA"}, __PACKAGE__;
		1148
		1149	$EXT_MAP{$pkg} = qr<$regex>;
		1150	}
		1151
		1152	# also paths starting with '/'
		1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1154
		1155	sub thawer_merge {
		1156	my ($self, $merge) = @_;
		1157
		1158	# we have to keep some variables in memory intact
		1159	local $self->{path};
		1160	local $self->{load_path};
		1161	local $self->{deny_save};
		1162	local $self->{deny_reset};
		1163
		1164	$self->SUPER::thawer_merge ($merge);
		1165	}
		1166
		1167	sub normalise {
		1168	my ($path, $base) = @_;
		1169
		1170	# map plan:
		1171	#
		1172	# /! non-realised random map exit (special hack!)
		1173	# {... are special paths that are not being touched
		1174	# ?xxx/... are special absolute paths
		1175	# ?random/... random maps
		1176	# /... normal maps
		1177	# ~user/... per-player map of a specific user
		1178
		1179	$path =~ s/$PATH_SEP/\//go;
		1180
		1181	# treat it as relative path if it starts with
		1182	# something that looks reasonable
		1183	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1184	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1185
		1186	$base =~ s{[^/]+/?$}{};
		1187	$path = "$base/$path";
		1188	}
		1189
		1190	for ($path) {
		1191	redo if s{//}{/};
		1192	redo if s{/\.?/}{/};
		1193	redo if s{/[^/]+/\.\./}{/};
		1194	}
		1195
		1196	$path
		1197	}
		1198
		1199	sub new_from_path {
		1200	my (undef, $path, $base) = @_;
		1201
		1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1203
		1204	$path = normalise $path, $base;
		1205
		1206	for my $pkg (keys %EXT_MAP) {
		1207	if ($path =~ $EXT_MAP{$pkg}) {
		1208	my $self = bless cf::map::new, $pkg;
		1209	$self->{path} = $path; $self->path ($path);
		1210	$self->init; # pass $1 etc.
		1211	return $self;
		1212	}
		1213	}
		1214
		1215	Carp::carp "unable to resolve path '$path'.";
		1216	()
		1217	}
		1218
		1219	sub init {
		1220	my ($self) = @_;
		1221
		1222	$self
		1223	}
		1224
		1225	sub as_string {
		1226	my ($self) = @_;
		1227
		1228	"$self->{path}"
		1229	}
		1230
		1231	# the displayed name, this is a one way mapping
		1232	sub visible_name {
		1233	&as_string
		1234	}
		1235
		1236	# the original (read-only) location
		1237	sub load_path {
		1238	my ($self) = @_;
		1239
		1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1241	}
		1242
		1243	# the temporary/swap location
		1244	sub save_path {
		1245	my ($self) = @_;
		1246
		1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1249	}
		1250
		1251	# the unique path, undef == no special unique path
		1252	sub uniq_path {
		1253	my ($self) = @_;
		1254
		1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1257	}
		1258
		1259	# and all this just because we cannot iterate over
		1260	# all maps in C++...
		1261	sub change_all_map_light {
		1262	my ($change) = @_;
		1263
		1264	$_->change_map_light ($change)
		1265	for grep $_->outdoor, values %cf::MAP;
		1266	}
		1267
		1268	sub unlink_save {
		1269	my ($self) = @_;
		1270
		1271	utf8::encode (my $save = $self->save_path);
		1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1273	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1274	}
		1275
		1276	sub load_header_from($) {
		1277	my ($self, $path) = @_;
		1278
		1279	utf8::encode $path;
		1280	aio_open $path, O_RDONLY, 0
		1281	or return;
		1282
		1283	$self->_load_header ($path)
		1284	or return;
		1285
		1286	$self->{load_path} = $path;
		1287
		1288	1
		1289	}
		1290
		1291	sub load_orig {
		1292	my ($self) = @_;
		1293
		1294	$self->load_header_from ($self->load_path)
		1295	}
		1296
		1297	sub load_temp {
		1298	my ($self) = @_;
		1299
		1300	$self->load_header_from ($self->save_path)
		1301	}
		1302
		1303	sub load_header {
		1304	my ($self) = @_;
		1305
		1306	if ($self->load_temp) {
		1307	$self->last_access ((delete $self->{last_access})
		1308	|| $cf::RUNTIME); #d#
		1309	# safety
		1310	$self->{instantiate_time} = $cf::RUNTIME
		1311	if $self->{instantiate_time} > $cf::RUNTIME;
		1312	} else {
		1313	$self->load_orig
		1314	or return;
		1315
		1316	$self->{load_original} = 1;
		1317	$self->{instantiate_time} = $cf::RUNTIME;
		1318	$self->last_access ($cf::RUNTIME);
		1319	$self->instantiate;
		1320	}
		1321
		1322	1
		1323	}
		1324
		1325	sub find;
		1326	sub find {
		1327	my ($path, $origin) = @_;
		1328
		1329	$path = normalise $path, $origin && $origin->path;
		1330
		1331	cf::lock_wait "map_find:$path";
		1332
		1333	$cf::MAP{$path} || do {
		1334	my $guard = cf::lock_acquire "map_find:$path";
		1335	my $map = new_from_path cf::map $path
		1336	or return;
		1337
		1338	$map->{last_save} = $cf::RUNTIME;
		1339
		1340	$map->load_header
		1341	or return;
		1342
		1343	if ($map->should_reset) {
		1344	# doing this can freeze the server in a sync job, obviously
		1345	#$cf::WAIT_FOR_TICK->wait;
		1346	$map->reset;
		1347	undef $guard;
		1348	$map = find $path
		1349	or return;
		1350	}
		1351
		1352	$cf::MAP{$path} = $map
		1353	}
		1354	}
		1355
		1356	sub load {
		1357	my ($self) = @_;
		1358
		1359	my $path = $self->{path};
		1360	my $guard = cf::lock_acquire "map_load:$path";
		1361
		1362	return if $self->in_memory != cf::MAP_SWAPPED;
		1363
		1364	$self->in_memory (cf::MAP_LOADING);
		1365
		1366	$self->alloc;
		1367	$self->_load_objects ($self->{load_path}, 1)
		1368	or return;
		1369
		1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1371	if delete $self->{load_original};
		1372
		1373	if (my $uniq = $self->uniq_path) {
		1374	utf8::encode $uniq;
		1375	if (aio_open $uniq, O_RDONLY, 0) {
		1376	$self->clear_unique_items;
		1377	$self->_load_objects ($uniq, 0);
		1378	}
		1379	}
		1380
		1381	Coro::cede;
		1382
		1383	# now do the right thing for maps
		1384	$self->link_multipart_objects;
		1385
		1386	unless ($self->{deny_activate}) {
		1387	$self->decay_objects;
		1388	$self->fix_auto_apply;
		1389	$self->update_buttons;
		1390	Coro::cede;
		1391	$self->set_darkness_map;
		1392	$self->difficulty ($self->estimate_difficulty)
		1393	unless $self->difficulty;
		1394	Coro::cede;
		1395	$self->activate;
		1396	}
		1397
		1398	$self->in_memory (cf::MAP_IN_MEMORY);
		1399	}
		1400
		1401	sub customise_for {
		1402	my ($self, $ob) = @_;
		1403
		1404	return find "~" . $ob->name . "/" . $self->{path}
		1405	if $self->per_player;
		1406
		1407	$self
		1408	}
		1409
		1410	# find and load all maps in the 3x3 area around a map
		1411	sub load_diag {
819	my ($map) = @_;	1412	my ($map) = @_;
820		1413
821	my $path = $map->tmpname;	1414	my @diag; # diagonal neighbours
822	defined $path or return;
823		1415
824	unlink "$path.pst";	1416	for (0 .. 3) {
825	};	1417	my $neigh = $map->tile_path ($_)
		1418	or next;
		1419	$neigh = find $neigh, $map
		1420	or next;
		1421	$neigh->load;
826		1422
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1423	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1424	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1425	}
828		1426
829	#############################################################################	1427	for (@diag) {
830	# load/save perl data associated with player->ob objects	1428	my $neigh = find @$_
831		1429	or next;
832	sub all_objects(@) {	1430	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1431	}
834	}	1432	}
835		1433
836	# TODO: compatibility cruft, remove when no longer needed	1434	sub find_sync {
837	cf::player->attach (	1435	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1436
841	for my $o (all_objects $pl->ob) {	1437	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1438	}
843	$o->set_ob_key_value ("_perl_data");
844		1439
845	%$o = %{ Storable::thaw pack "H*", $value };	1440	sub do_load_sync {
		1441	my ($map) = @_;
		1442
		1443	cf::sync_job { $map->load };
		1444	}
		1445
		1446	our %MAP_PREFETCH;
		1447	our $MAP_PREFETCHER = undef;
		1448
		1449	sub find_async {
		1450	my ($path, $origin) = @_;
		1451
		1452	$path = normalise $path, $origin && $origin->{path};
		1453
		1454	if (my $map = $cf::MAP{$path}) {
		1455	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1456	}
		1457
		1458	undef $MAP_PREFETCH{$path};
		1459	$MAP_PREFETCHER ||= cf::async {
		1460	while (%MAP_PREFETCH) {
		1461	for my $path (keys %MAP_PREFETCH) {
		1462	my $map = find $path
		1463	or next;
		1464	$map->load;
		1465
		1466	delete $MAP_PREFETCH{$path};
846	}	1467	}
847	}	1468	}
		1469	undef $MAP_PREFETCHER;
		1470	};
		1471
		1472	()
		1473	}
		1474
		1475	sub save {
		1476	my ($self) = @_;
		1477
		1478	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1479
		1480	$self->{last_save} = $cf::RUNTIME;
		1481
		1482	return unless $self->dirty;
		1483
		1484	my $save = $self->save_path; utf8::encode $save;
		1485	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1486
		1487	$self->{load_path} = $save;
		1488
		1489	return if $self->{deny_save};
		1490
		1491	local $self->{last_access} = $self->last_access;#d#
		1492
		1493	cf::async {
		1494	$_->contr->save for $self->players;
		1495	};
		1496
		1497	if ($uniq) {
		1498	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1499	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1500	} else {
		1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1502	}
849	);	1503	}
850		1504
851	#############################################################################	1505	sub swap_out {
		1506	my ($self) = @_;
852		1507
853	=head2 CORE EXTENSIONS	1508	# save first because save cedes
		1509	$self->save;
854		1510
855	Functions and methods that extend core crossfire objects.	1511	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1512
857	=head3 cf::player	1513	return if $self->players;
		1514	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1515	return if $self->{deny_save};
		1516
		1517	$self->clear;
		1518	$self->in_memory (cf::MAP_SWAPPED);
		1519	}
		1520
		1521	sub reset_at {
		1522	my ($self) = @_;
		1523
		1524	# TODO: safety, remove and allow resettable per-player maps
		1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1526	return 1e99 if $self->{deny_reset};
		1527
		1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1530
		1531	$time + $to
		1532	}
		1533
		1534	sub should_reset {
		1535	my ($self) = @_;
		1536
		1537	$self->reset_at <= $cf::RUNTIME
		1538	}
		1539
		1540	sub reset {
		1541	my ($self) = @_;
		1542
		1543	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1544
		1545	return if $self->players;
		1546	return if $self->isa ("ext::map_per_player");#d#
		1547
		1548	warn "resetting map ", $self->path;#d#
		1549
		1550	delete $cf::MAP{$self->path};
		1551
		1552	$self->in_memory (cf::MAP_SWAPPED);
		1553	$self->clear;
		1554
		1555	$_->clear_links_to ($self) for values %cf::MAP;
		1556
		1557	$self->unlink_save;
		1558	$self->destroy;
		1559	}
		1560
		1561	my $nuke_counter = "aaaa";
		1562
		1563	sub nuke {
		1564	my ($self) = @_;
		1565
		1566	delete $cf::MAP{$self->path};
		1567
		1568	$self->unlink_save;
		1569
		1570	bless $self, "cf::map";
		1571	delete $self->{deny_reset};
		1572	$self->{deny_save} = 1;
		1573	$self->reset_timeout (1);
		1574	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1575
		1576	$cf::MAP{$self->path} = $self;
		1577
		1578	$self->reset; # polite request, might not happen
		1579	}
		1580
		1581	=item cf::map::unique_maps
		1582
		1583	Returns an arrayref of paths of all shared maps that have
		1584	instantiated unique items. May block.
		1585
		1586	=cut
		1587
		1588	sub unique_maps() {
		1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1590	or return;
		1591
		1592	my @paths;
		1593
		1594	for (@$files) {
		1595	utf8::decode $_;
		1596	next if /\.pst$/;
		1597	next unless /^$PATH_SEP/o;
		1598
		1599	s/\.map$//;
		1600	push @paths, $_;
		1601	}
		1602
		1603	\@paths
		1604	}
		1605
		1606	package cf;
		1607
		1608	=back
		1609
		1610	=head3 cf::object
		1611
		1612	=cut
		1613
		1614	package cf::object;
858		1615
859	=over 4	1616	=over 4
860		1617
861	=item cf::player::exists $login	1618	=item $ob->inv_recursive
862		1619
863	Returns true when the given account exists.	1620	Returns the inventory of the object _and_ their inventories, recursively.
864		1621
865	=cut	1622	=cut
866		1623
867	sub cf::player::exists($) {	1624	sub inv_recursive_;
868	cf::player::find $_[0]	1625	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1626	map { $_, inv_recursive_ $_->inv } @_
870	}	1627	}
871		1628
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1629	sub inv_recursive {
873		1630	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1631	}
		1632
		1633	package cf;
885		1634
886	=back	1635	=back
887		1636
888	=head3 cf::object::player	1637	=head3 cf::object::player
889		1638
…		…
927	(ref $cf::CFG{"may_$access"}	1676	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1677	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1678	: $cf::CFG{"may_$access"})
930	}	1679	}
931		1680
		1681	=item $player_object->enter_link
		1682
		1683	Freezes the player and moves him/her to a special map (C<{link}>).
		1684
		1685	The player should be reasonably safe there for short amounts of time. You
		1686	I<MUST> call C<leave_link> as soon as possible, though.
		1687
		1688	Will never block.
		1689
		1690	=item $player_object->leave_link ($map, $x, $y)
		1691
		1692	Moves the player out of the special C<{link}> map onto the specified
		1693	map. If the map is not valid (or omitted), the player will be moved back
		1694	to the location he/she was before the call to C<enter_link>, or, if that
		1695	fails, to the emergency map position.
		1696
		1697	Might block.
		1698
		1699	=cut
		1700
		1701	sub link_map {
		1702	unless ($LINK_MAP) {
		1703	$LINK_MAP = cf::map::find "{link}"
		1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1705	$LINK_MAP->load;
		1706	}
		1707
		1708	$LINK_MAP
		1709	}
		1710
		1711	sub cf::object::player::enter_link {
		1712	my ($self) = @_;
		1713
		1714	$self->deactivate_recursive;
		1715
		1716	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1717
		1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1719	if $self->map;
		1720
		1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1722	}
		1723
		1724	sub cf::object::player::leave_link {
		1725	my ($self, $map, $x, $y) = @_;
		1726
		1727	my $link_pos = delete $self->{_link_pos};
		1728
		1729	unless ($map) {
		1730	# restore original map position
		1731	($map, $x, $y) = @{ $link_pos || [] };
		1732	$map = cf::map::find $map;
		1733
		1734	unless ($map) {
		1735	($map, $x, $y) = @$EMERGENCY_POSITION;
		1736	$map = cf::map::find $map
		1737	or die "FATAL: cannot load emergency map\n";
		1738	}
		1739	}
		1740
		1741	($x, $y) = (-1, -1)
		1742	unless (defined $x) && (defined $y);
		1743
		1744	# use -1 or undef as default coordinates, not 0, 0
		1745	($x, $y) = ($map->enter_x, $map->enter_y)
		1746	if $x <=0 && $y <= 0;
		1747
		1748	$map->load;
		1749	$map->load_diag;
		1750
		1751	return unless $self->contr->active;
		1752	$self->activate_recursive;
		1753	$self->enter_map ($map, $x, $y);
		1754	}
		1755
		1756	cf::player->attach (
		1757	on_logout => sub {
		1758	my ($pl) = @_;
		1759
		1760	# abort map switching before logout
		1761	if ($pl->ob->{_link_pos}) {
		1762	cf::sync_job {
		1763	$pl->ob->leave_link
		1764	};
		1765	}
		1766	},
		1767	on_login => sub {
		1768	my ($pl) = @_;
		1769
		1770	# try to abort aborted map switching on player login :)
		1771	# should happen only on crashes
		1772	if ($pl->ob->{_link_pos}) {
		1773	$pl->ob->enter_link;
		1774	(async {
		1775	# we need this sleep as the login has a concurrent enter_exit running
		1776	# and this sleep increases chances of the player not ending up in scorn
		1777	$pl->ob->reply (undef,
		1778	"There was an internal problem at your last logout, "
		1779	. "the server will try to bring you to your intended destination in a second.",
		1780	cf::NDI_RED);
		1781	Coro::Timer::sleep 1;
		1782	$pl->ob->leave_link;
		1783	})->prio (2);
		1784	}
		1785	},
		1786	);
		1787
		1788	=item $player_object->goto ($path, $x, $y)
		1789
		1790	=cut
		1791
		1792	sub cf::object::player::goto {
		1793	my ($self, $path, $x, $y) = @_;
		1794
		1795	$self->enter_link;
		1796
		1797	(async {
		1798	my $map = cf::map::find $path;
		1799	$map = $map->customise_for ($self) if $map;
		1800
		1801	# warn "entering ", $map->path, " at ($x, $y)\n"
		1802	# if $map;
		1803
		1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1805
		1806	$self->leave_link ($map, $x, $y);
		1807	})->prio (1);
		1808	}
		1809
		1810	=item $player_object->enter_exit ($exit_object)
		1811
		1812	=cut
		1813
		1814	sub parse_random_map_params {
		1815	my ($spec) = @_;
		1816
		1817	my $rmp = { # defaults
		1818	xsize => (cf::rndm 15, 40),
		1819	ysize => (cf::rndm 15, 40),
		1820	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1821	#layout => string,
		1822	};
		1823
		1824	for (split /\n/, $spec) {
		1825	my ($k, $v) = split /\s+/, $_, 2;
		1826
		1827	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1828	}
		1829
		1830	$rmp
		1831	}
		1832
		1833	sub prepare_random_map {
		1834	my ($exit) = @_;
		1835
		1836	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1837
		1838	# all this does is basically replace the /! path by
		1839	# a new random map path (?random/...) with a seed
		1840	# that depends on the exit object
		1841
		1842	my $rmp = parse_random_map_params $exit->msg;
		1843
		1844	if ($exit->map) {
		1845	$rmp->{region} = $exit->map->region_name;
		1846	$rmp->{origin_map} = $exit->map->path;
		1847	$rmp->{origin_x} = $exit->x;
		1848	$rmp->{origin_y} = $exit->y;
		1849	}
		1850
		1851	$rmp->{random_seed} ||= $exit->random_seed;
		1852
		1853	my $data = cf::to_json $rmp;
		1854	my $md5 = Digest::MD5::md5_hex $data;
		1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1856
		1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1858	aio_write $fh, 0, (length $data), $data, 0;
		1859	undef $fh;
		1860	aio_rename "$meta~", $meta;
		1861
		1862	$exit->slaying ("?random/$md5");
		1863	$exit->msg (undef);
		1864	}
		1865	}
		1866
		1867	sub cf::object::player::enter_exit {
		1868	my ($self, $exit) = @_;
		1869
		1870	return unless $self->type == cf::PLAYER;
		1871
		1872	$self->enter_link;
		1873
		1874	(async {
		1875	$self->deactivate_recursive; # just to be sure
		1876	unless (eval {
		1877	prepare_random_map $exit
		1878	if $exit->slaying eq "/!";
		1879
		1880	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1881	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1882
		1883	1;
		1884	}) {
		1885	$self->message ("Something went wrong deep within the crossfire server. "
		1886	. "I'll try to bring you back to the map you were before. "
		1887	. "Please report this to the dungeon master!",
		1888	cf::NDI_UNIQUE | cf::NDI_RED);
		1889
		1890	warn "ERROR in enter_exit: $@";
		1891	$self->leave_link;
		1892	}
		1893	})->prio (1);
		1894	}
		1895
932	=head3 cf::client	1896	=head3 cf::client
933		1897
934	=over 4	1898	=over 4
935		1899
936	=item $client->send_drawinfo ($text, $flags)	1900	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	1943	on_reply => sub {
980	my ($ns, $msg) = @_;	1944	my ($ns, $msg) = @_;
981		1945
982	# this weird shuffling is so that direct followup queries	1946	# this weird shuffling is so that direct followup queries
983	# get handled first	1947	# get handled first
984	my $queue = delete $ns->{query_queue};	1948	my $queue = delete $ns->{query_queue}
		1949	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		1950
986	(shift @$queue)->[1]->($msg);	1951	(shift @$queue)->[1]->($msg);
987		1952
988	push @{ $ns->{query_queue} }, @$queue;	1953	push @{ $ns->{query_queue} }, @$queue;
989		1954
…		…
995	}	1960	}
996	}	1961	}
997	},	1962	},
998	);	1963	);
999		1964
1000	=item $client->coro (\&cb)	1965	=item $client->async (\&cb)
1001		1966
1002	Create a new coroutine, running the specified callback. The coroutine will	1967	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	1968	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	1969	or loss of connection).
1005		1970
1006	=cut	1971	=cut
1007		1972
1008	sub cf::client::coro {	1973	sub cf::client::async {
1009	my ($self, $cb) = @_;	1974	my ($self, $cb) = @_;
1010		1975
1011	my $coro; $coro = async {	1976	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		1977
1018	$coro->on_destroy (sub {	1978	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	1979	delete $self->{_coro}{$coro+0};
1020	});	1980	});
1021		1981
…		…
1193		2153
1194	{	2154	{
1195	my $path = cf::localdir . "/database.pst";	2155	my $path = cf::localdir . "/database.pst";
1196		2156
1197	sub db_load() {	2157	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };	2158	$DB = stat $path ? Storable::retrieve $path : { };
1200	}	2159	}
1201		2160
1202	my $pid;	2161	my $pid;
1203		2162
1204	sub db_save() {	2163	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;	2164	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {	2165	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;	2166	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";	2167	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;	2168	rename "$path~", $path;
…		…
1217	sub db_sync() {	2175	sub db_sync() {
1218	db_save if $dirty;	2176	db_save if $dirty;
1219	undef $dirty;	2177	undef $dirty;
1220	}	2178	}
1221		2179
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2180	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;	2181	db_sync;
1224	});	2182	});
1225		2183
1226	sub db_dirty() {	2184	sub db_dirty() {
1227	$dirty = 1;	2185	$dirty = 1;
…		…
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2216	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2217	or return;
1260		2218
1261	local $/;	2219	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2220	*CFG = YAML::Syck::Load <$fh>;
		2221
		2222	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2223
		2224	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2225	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2226
		2227	if (exists $CFG{mlockall}) {
		2228	eval {
		2229	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2230	and die "WARNING: m(un)lockall failed: $!\n";
		2231	};
		2232	warn $@ if $@;
		2233	}
1263	}	2234	}
1264		2235
1265	sub main {	2236	sub main {
		2237	# we must not ever block the main coroutine
		2238	local $Coro::idle = sub {
		2239	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2240	(async {
		2241	Event::one_event;
		2242	})->prio (Coro::PRIO_MAX);
		2243	};
		2244
1266	cfg_load;	2245	cfg_load;
1267	db_load;	2246	db_load;
1268	load_extensions;	2247	load_extensions;
		2248
		2249	$TICK_WATCHER->start;
1269	Event::loop;	2250	Event::loop;
1270	}	2251	}
1271		2252
1272	#############################################################################	2253	#############################################################################
1273	# initialisation	2254	# initialisation and cleanup
1274		2255
		2256	# install some emergency cleanup handlers
		2257	BEGIN {
		2258	for my $signal (qw(INT HUP TERM)) {
		2259	Event->signal (
		2260	data => WF_AUTOCANCEL,
		2261	signal => $signal,
		2262	cb => sub {
		2263	cf::cleanup "SIG$signal";
		2264	},
		2265	);
		2266	}
		2267	}
		2268
		2269	sub emergency_save() {
		2270	my $freeze_guard = cf::freeze_mainloop;
		2271
		2272	warn "enter emergency perl save\n";
		2273
		2274	cf::sync_job {
		2275	# use a peculiar iteration method to avoid tripping on perl
		2276	# refcount bugs in for. also avoids problems with players
		2277	# and maps saved/destroyed asynchronously.
		2278	warn "begin emergency player save\n";
		2279	for my $login (keys %cf::PLAYER) {
		2280	my $pl = $cf::PLAYER{$login} or next;
		2281	$pl->valid or next;
		2282	$pl->save;
		2283	}
		2284	warn "end emergency player save\n";
		2285
		2286	warn "begin emergency map save\n";
		2287	for my $path (keys %cf::MAP) {
		2288	my $map = $cf::MAP{$path} or next;
		2289	$map->valid or next;
		2290	$map->save;
		2291	}
		2292	warn "end emergency map save\n";
		2293	};
		2294
		2295	warn "leave emergency perl save\n";
		2296	}
		2297
1275	sub _perl_reload() {	2298	sub reload() {
		2299	# can/must only be called in main
		2300	if ($Coro::current != $Coro::main) {
		2301	warn "can only reload from main coroutine";
		2302	return;
		2303	}
		2304
1276	warn "reloading...";	2305	warn "reloading...";
1277		2306
		2307	warn "cancelling server ticker";
		2308	$TICK_WATCHER->cancel;
		2309
		2310	cf::emergency_save;
		2311
1278	eval {	2312	eval {
1279	local $FREEZE = 1;	2313	# if anything goes wrong in here, we should simply crash as we already saved
1280		2314
1281	cf::emergency_save;	2315	warn "syncing database to disk";
		2316	cf::db_sync;
1282		2317
1283	# cancel all watchers	2318	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2319	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2320	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2321	}
1287		2322
		2323	warn "flushing outstanding aio requests";
		2324	for (;;) {
		2325	IO::AIO::flush;
		2326	Coro::cede;
		2327	last unless IO::AIO::nreqs;
		2328	warn "iterate...";
		2329	}
		2330
1288	# cancel all extension coros	2331	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2332	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2333	%EXT_CORO = ();
1291		2334
1292	# unload all extensions	2335	warn "removing commands";
1293	for (@exts) {	2336	%COMMAND = ();
		2337
		2338	warn "removing ext commands";
		2339	%EXTCMD = ();
		2340
		2341	warn "unloading/nuking all extensions";
		2342	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2343	warn "... unloading $pkg";
1295	unload_extension $_;	2344
		2345	if (my $cb = $pkg->can ("unload")) {
		2346	eval {
		2347	$cb->($pkg);
		2348	1
		2349	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2350	}
1297		2351
		2352	warn "... nuking $pkg";
		2353	Symbol::delete_package $pkg;
		2354	}
		2355
1298	# unload all modules loaded from $LIBDIR	2356	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2357	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2359
1302	warn "removing <$k>";	2360	warn "... unloading $k";
1303	delete $INC{$k};	2361	delete $INC{$k};
1304		2362
1305	$k =~ s/\.pm$//;	2363	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2364	$k =~ s/\//::/g;
1307		2365
…		…
1310	}	2368	}
1311		2369
1312	Symbol::delete_package $k;	2370	Symbol::delete_package $k;
1313	}	2371	}
1314		2372
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2373	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2374	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2376
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2377	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2378	delete $INC{"cf.pm"};
1328		2379
1329	# don't, removes xs symbols, too,	2380	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2381	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2382	#Symbol::delete_package __PACKAGE__;
1332		2383
1333	# reload cf.pm	2384	warn "unload completed, starting to reload now";
		2385
1334	warn "reloading cf.pm";	2386	warn "reloading cf.pm";
1335	require cf;	2387	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2389
1338	# load config and database again	2390	warn "loading config and database again";
1339	cf::cfg_load;	2391	cf::cfg_load;
1340	cf::db_load;	2392	cf::db_load;
1341		2393
1342	# load extensions
1343	warn "load extensions";	2394	warn "loading extensions";
1344	cf::load_extensions;	2395	cf::load_extensions;
1345		2396
1346	# reattach attachments to objects	2397	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2398	_global_reattach;
		2399	warn "reattaching attachments to maps";
		2400	reattach $_ for values %MAP;
		2401
		2402	warn "restarting server ticker";
		2403
		2404	$TICK_WATCHER->start;
1349	};	2405	};
1350	warn $@ if $@;	2406
		2407	if ($@) {
		2408	warn $@;
		2409	warn "error while reloading, exiting.";
		2410	exit 1;
		2411	}
1351		2412
1352	warn "reloaded";	2413	warn "reloaded";
1353	};	2414	};
1354		2415
1355	sub perl_reload() {	2416	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2417
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2418	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2419	my ($who, $arg) = @_;
1363		2420
1364	if ($who->flag (FLAG_WIZ)) {	2421	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2422	$who->message ("reloading server.");
1366	_perl_reload;	2423
		2424	# doing reload synchronously and two reloads happen back-to-back,
		2425	# coro crashes during coro_state_free->destroy here.
		2426
		2427	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
		2428	reload;
		2429	undef $RELOAD_WATCHER;
		2430	});
1367	}	2431	}
1368	};	2432	};
1369		2433
1370	unshift @INC, $LIBDIR;	2434	unshift @INC, $LIBDIR;
		2435
		2436	my $bug_warning = 0;
1371		2437
1372	$TICK_WATCHER = Event->timer (	2438	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2439	reentrant => 0,
		2440	parked => 1,
1374	prio => 0,	2441	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2442	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2443	data => WF_AUTOCANCEL,
1377	cb => sub {	2444	cb => sub {
1378	unless ($FREEZE) {	2445	if ($Coro::current != $Coro::main) {
		2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2447	unless ++$bug_warning > 10;
		2448	return;
		2449	}
		2450
		2451	$NOW = Event::time;
		2452
1379	cf::server_tick; # one server iteration	2453	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2454	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2455	$NEXT_TICK += $TICK;
		2456
		2457	$WAIT_FOR_TICK->broadcast;
		2458	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1384		2459
1385	# if we are delayed by four ticks or more, skip them all	2460	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2462
1388	$TICK_WATCHER->at ($NEXT_TICK);	2463	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1390	},	2465	},
1391	);	2466	);
1392		2467
1393	IO::AIO::max_poll_time $TICK * 0.2;	2468	IO::AIO::max_poll_time $TICK * 0.2;
1394		2469
		2470	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2471	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2472	poll => 'r',
1397	prio => 5,	2473	prio => 5,
1398	data => WF_AUTOCANCEL,	2474	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2475	cb => \&IO::AIO::poll_cb,
		2476	);
1400		2477
1401	# we must not ever block the main coroutine	2478	$WRITE_RUNTIME_WATCHER = Event->timer (
1402	$Coro::idle = sub {	2479	data => WF_AUTOCANCEL,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2480	after => 1,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2481	interval => 10,
1405	(Coro::unblock_sub {	2482	cb => Coro::unblock_sub {
1406	Event::one_event;	2483	write_runtime
1407	})->();	2484	or warn "ERROR: unable to write runtime file: $!";
1408	};	2485	},
		2486	);
		2487
		2488	END { cf::emergency_save }
1409		2489
1410	1	2490	1
1411		2491

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