[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.171 by root, Sun Jan 14 12:24:48 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
		21	use Digest::MD5;
20	use Fcntl;	22	use Fcntl;
21	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
22	use YAML::Syck ();	24	use YAML::Syck ();
23	use Time::HiRes;	25	use Time::HiRes;
24		26
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
26		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
29		33
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		35
34	our %COMMAND = ();	36	our %COMMAND = ();
35	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
37		43
38	our @EVENT;	44	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
40		46
41	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
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 $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
		1120	our $MAX_RESET = 3600;
		1121	our $DEFAULT_RESET = 3000;
		1122
		1123	sub generate_random_map {
		1124	my ($self, $rmp) = @_;
		1125
		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	# we have to keep some variables in memory intact
		1157	local $_[0]{path};
		1158	local $_[0]{deny_save};
		1159	local $_[0]{deny_reset};
		1160
		1161	$_[0]->SUPER::thawer_merge ($_[1]);
		1162	}
		1163
		1164	sub normalise {
		1165	my ($path, $base) = @_;
		1166
		1167	# map plan:
		1168	#
		1169	# /! non-realised random map exit (special hack!)
		1170	# {... are special paths that are not being touched
		1171	# ?xxx/... are special absolute paths
		1172	# ?random/... random maps
		1173	# /... normal maps
		1174	# ~user/... per-player map of a specific user
		1175
		1176	$path =~ s/$PATH_SEP/\//go;
		1177
		1178	# treat it as relative path if it starts with
		1179	# something that looks reasonable
		1180	if ($path =~ m{^(?:\./\|\.\./\|\w)}) {
		1181	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1182
		1183	$base =~ s{[^/]+/?$}{};
		1184	$path = "$base/$path";
		1185	}
		1186
		1187	for ($path) {
		1188	redo if s{//}{/};
		1189	redo if s{/\.?/}{/};
		1190	redo if s{/[^/]+/\.\./}{/};
		1191	}
		1192
		1193	$path
		1194	}
		1195
		1196	sub new_from_path {
		1197	my (undef, $path, $base) = @_;
		1198
		1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1200
		1201	$path = normalise $path, $base;
		1202
		1203	for my $pkg (keys %EXT_MAP) {
		1204	if ($path =~ $EXT_MAP{$pkg}) {
		1205	my $self = bless cf::map::new, $pkg;
		1206	$self->{path} = $path; $self->path ($path);
		1207	$self->init; # pass $1 etc.
		1208	return $self;
		1209	}
		1210	}
		1211
		1212	Carp::carp "unable to resolve path '$path'.";
		1213	()
		1214	}
		1215
		1216	sub init {
		1217	my ($self) = @_;
		1218
		1219	$self
		1220	}
		1221
		1222	sub as_string {
		1223	my ($self) = @_;
		1224
		1225	"$self->{path}"
		1226	}
		1227
		1228	# the displayed name, this is a one way mapping
		1229	sub visible_name {
		1230	&as_string
		1231	}
		1232
		1233	# the original (read-only) location
		1234	sub load_path {
		1235	my ($self) = @_;
		1236
		1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1238	}
		1239
		1240	# the temporary/swap location
		1241	sub save_path {
		1242	my ($self) = @_;
		1243
		1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1246	}
		1247
		1248	# the unique path, undef == no special unique path
		1249	sub uniq_path {
		1250	my ($self) = @_;
		1251
		1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1254	}
		1255
		1256	# and all this just because we cannot iterate over
		1257	# all maps in C++...
		1258	sub change_all_map_light {
		1259	my ($change) = @_;
		1260
		1261	$_->change_map_light ($change)
		1262	for grep $_->outdoor, values %cf::MAP;
		1263	}
		1264
		1265	sub unlink_save {
		1266	my ($self) = @_;
		1267
		1268	utf8::encode (my $save = $self->save_path);
		1269	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1270	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1271	}
		1272
		1273	sub load_header_from($) {
		1274	my ($self, $path) = @_;
		1275
		1276	utf8::encode $path;
		1277	aio_open $path, O_RDONLY, 0
		1278	or return;
		1279
		1280	$self->_load_header ($path)
		1281	or return;
		1282
		1283	$self->{load_path} = $path;
		1284
		1285	1
		1286	}
		1287
		1288	sub load_orig {
		1289	my ($self) = @_;
		1290
		1291	$self->load_header_from ($self->load_path)
		1292	}
		1293
		1294	sub load_temp {
		1295	my ($self) = @_;
		1296
		1297	$self->load_header_from ($self->save_path)
		1298	}
		1299
		1300	sub load_header {
		1301	my ($self) = @_;
		1302
		1303	if ($self->load_temp) {
		1304	$self->last_access ((delete $self->{last_access})
		1305	\|\| $cf::RUNTIME); #d#
		1306	# safety
		1307	$self->{instantiate_time} = $cf::RUNTIME
		1308	if $self->{instantiate_time} > $cf::RUNTIME;
		1309	} else {
		1310	$self->load_orig
		1311	or return;
		1312
		1313	$self->{load_original} = 1;
		1314	$self->{instantiate_time} = $cf::RUNTIME;
		1315	$self->last_access ($cf::RUNTIME);
		1316	$self->instantiate;
		1317	}
		1318
		1319	1
		1320	}
		1321
		1322	sub find;
		1323	sub find {
		1324	my ($path, $origin) = @_;
		1325
		1326	$path = normalise $path, $origin && $origin->path;
		1327
		1328	cf::lock_wait "map_find:$path";
		1329
		1330	$cf::MAP{$path} \|\| do {
		1331	my $guard = cf::lock_acquire "map_find:$path";
		1332	my $map = new_from_path cf::map $path
		1333	or return;
		1334
		1335	$map->{last_save} = $cf::RUNTIME;
		1336
		1337	$map->load_header
		1338	or return;
		1339
		1340	if ($map->should_reset) {
		1341	$cf::WAIT_FOR_TICK->wait;
		1342	$map->reset;
		1343	undef $guard;
		1344	$map = find $path
		1345	or return;
		1346	}
		1347
		1348	$cf::MAP{$path} = $map
		1349	}
		1350	}
		1351
		1352	sub load {
		1353	my ($self) = @_;
		1354
		1355	my $path = $self->{path};
		1356	my $guard = cf::lock_acquire "map_load:$path";
		1357
		1358	return if $self->in_memory != cf::MAP_SWAPPED;
		1359
		1360	$self->in_memory (cf::MAP_LOADING);
		1361
		1362	$self->alloc;
		1363	$self->_load_objects ($self->{load_path}, 1)
		1364	or return;
		1365
		1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1367	if delete $self->{load_original};
		1368
		1369	if (my $uniq = $self->uniq_path) {
		1370	utf8::encode $uniq;
		1371	if (aio_open $uniq, O_RDONLY, 0) {
		1372	$self->clear_unique_items;
		1373	$self->_load_objects ($uniq, 0);
		1374	}
		1375	}
		1376
		1377	Coro::cede;
		1378
		1379	# now do the right thing for maps
		1380	$self->link_multipart_objects;
		1381
		1382	unless ($self->{deny_activate}) {
		1383	$self->decay_objects;
		1384	$self->fix_auto_apply;
		1385	$self->update_buttons;
		1386	Coro::cede;
		1387	$self->set_darkness_map;
		1388	$self->difficulty ($self->estimate_difficulty)
		1389	unless $self->difficulty;
		1390	Coro::cede;
		1391	$self->activate;
		1392	}
		1393
		1394	$self->in_memory (cf::MAP_IN_MEMORY);
		1395	}
		1396
		1397	sub customise_for {
		1398	my ($self, $ob) = @_;
		1399
		1400	return find "~" . $ob->name . "/" . $self->{path}
		1401	if $self->per_player;
		1402
		1403	$self
		1404	}
		1405
		1406	# find and load all maps in the 3x3 area around a map
		1407	sub load_diag {
819	my ($map) = @_;	1408	my ($map) = @_;
820		1409
821	my $path = $map->tmpname;	1410	my @diag; # diagonal neighbours
822	defined $path or return;
823		1411
824	unlink "$path.pst";	1412	for (0 .. 3) {
		1413	my $neigh = $map->tile_path ($_)
		1414	or next;
		1415	$neigh = find $neigh, $map
		1416	or next;
		1417	$neigh->load;
		1418
		1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1421	}
		1422
		1423	for (@diag) {
		1424	my $neigh = find @$_
		1425	or next;
		1426	$neigh->load;
		1427	}
		1428	}
		1429
		1430	sub find_sync {
		1431	my ($path, $origin) = @_;
		1432
		1433	cf::sync_job { find $path, $origin }
		1434	}
		1435
		1436	sub do_load_sync {
		1437	my ($map) = @_;
		1438
		1439	cf::sync_job { $map->load };
		1440	}
		1441
		1442	our %MAP_PREFETCH;
		1443	our $MAP_PREFETCHER = Coro::async {
		1444	while () {
		1445	for my $path (keys %MAP_PREFETCH) {
		1446	my $map = find $path
		1447	or next;
		1448	$map->load;
		1449
		1450	delete $MAP_PREFETCH{$path};
		1451	}
		1452	Coro::schedule;
		1453	}
825	};	1454	};
826		1455
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1456	sub find_async {
		1457	my ($path, $origin) = @_;
828		1458
829	#############################################################################	1459	$path = normalise $path, $origin && $origin->{path};
830	# load/save perl data associated with player->ob objects
831		1460
832	sub all_objects(@) {	1461	if (my $map = $cf::MAP{$path}) {
833	@_, map all_objects ($_->inv), @_	1462	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
834	}
835
836	# TODO: compatibility cruft, remove when no longer needed
837	cf::player->attach (
838	on_load => sub {
839	my ($pl, $path) = @_;
840
841	for my $o (all_objects $pl->ob) {
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {
843	$o->set_ob_key_value ("_perl_data");
844
845	%$o = %{ Storable::thaw pack "H*", $value };
846	}
847	}
848	},	1463	}
849	);
850		1464
851	#############################################################################	1465	$MAP_PREFETCH{$path} = 0;
		1466	$MAP_PREFETCHER->ready;
852		1467
853	=head2 CORE EXTENSIONS	1468	()
		1469	}
854		1470
855	Functions and methods that extend core crossfire objects.	1471	sub save {
		1472	my ($self) = @_;
856		1473
857	=head3 cf::player	1474	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1475
		1476	$self->{last_save} = $cf::RUNTIME;
		1477
		1478	return unless $self->dirty;
		1479
		1480	my $save = $self->save_path; utf8::encode $save;
		1481	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1482
		1483	$self->{load_path} = $save;
		1484
		1485	return if $self->{deny_save};
		1486
		1487	local $self->{last_access} = $self->last_access;#d#
		1488
		1489	cf::async {
		1490	$_->contr->save for $self->players;
		1491	};
		1492
		1493	if ($uniq) {
		1494	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS);
		1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1496	} else {
		1497	$self->_save_objects ($save, cf::IO_HEADER \| cf::IO_OBJECTS \| cf::IO_UNIQUES);
		1498	}
		1499	}
		1500
		1501	sub swap_out {
		1502	my ($self) = @_;
		1503
		1504	# save first because save cedes
		1505	$self->save;
		1506
		1507	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1508
		1509	return if $self->players;
		1510	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1511	return if $self->{deny_save};
		1512
		1513	$self->clear;
		1514	$self->in_memory (cf::MAP_SWAPPED);
		1515	}
		1516
		1517	sub reset_at {
		1518	my ($self) = @_;
		1519
		1520	# TODO: safety, remove and allow resettable per-player maps
		1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1522	return 1e99 if $self->{deny_reset};
		1523
		1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1525	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
		1526
		1527	$time + $to
		1528	}
		1529
		1530	sub should_reset {
		1531	my ($self) = @_;
		1532
		1533	$self->reset_at <= $cf::RUNTIME
		1534	}
		1535
		1536	sub rename {
		1537	my ($self, $new_path) = @_;
		1538
		1539	normalise $new_path;
		1540
		1541	$self->unlink_save;
		1542
		1543	delete $cf::MAP{$self->path};
		1544	$self->{path} = $new_path; $self->path ($self->{path});
		1545	$cf::MAP{$self->path} = $self;
		1546
		1547	$self->save;
		1548	}
		1549
		1550	sub reset {
		1551	my ($self) = @_;
		1552
		1553	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1554
		1555	return if $self->players;
		1556	return if $self->isa ("ext::map_per_player");#d#
		1557
		1558	warn "resetting map ", $self->path;#d#
		1559
		1560	delete $cf::MAP{$self->path};
		1561
		1562	$self->in_memory (cf::MAP_SWAPPED);
		1563	$self->clear;
		1564
		1565	$_->clear_links_to ($self) for values %cf::MAP;
		1566
		1567	$self->unlink_save;
		1568	$self->destroy;
		1569	}
		1570
		1571	my $nuke_counter = "aaaa";
		1572
		1573	sub nuke {
		1574	my ($self) = @_;
		1575
		1576	$self->{deny_save} = 1;
		1577	$self->reset_timeout (1);
		1578	$self->rename ("{nuke}/" . ($nuke_counter++));
		1579	$self->reset; # polite request, might not happen
		1580	}
		1581
		1582	=item cf::map::unique_maps
		1583
		1584	Returns an arrayref of paths of all shared maps that have
		1585	instantiated unique items. May block.
		1586
		1587	=cut
		1588
		1589	sub unique_maps() {
		1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1591	or return;
		1592
		1593	my @paths;
		1594
		1595	for (@$files) {
		1596	utf8::decode $_;
		1597	next if /\.pst$/;
		1598	next unless /^$PATH_SEP/o;
		1599
		1600	s/\.map$//;
		1601	push @paths, $_;
		1602	}
		1603
		1604	\@paths
		1605	}
		1606
		1607	package cf;
		1608
		1609	=back
		1610
		1611	=head3 cf::object
		1612
		1613	=cut
		1614
		1615	package cf::object;
858		1616
859	=over 4	1617	=over 4
860		1618
861	=item cf::player::exists $login	1619	=item $ob->inv_recursive
862		1620
863	Returns true when the given account exists.	1621	Returns the inventory of the object _and_ their inventories, recursively.
864		1622
865	=cut	1623	=cut
866		1624
867	sub cf::player::exists($) {	1625	sub inv_recursive_;
868	cf::player::find $_[0]	1626	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1627	map { $_, inv_recursive_ $_->inv } @_
870	}	1628	}
871		1629
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1630	sub inv_recursive {
873		1631	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	}	1632	}
		1633
		1634	package cf;
885		1635
886	=back	1636	=back
887		1637
888	=head3 cf::object::player	1638	=head3 cf::object::player
889		1639
…		…
927	(ref $cf::CFG{"may_$access"}	1677	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1678	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1679	: $cf::CFG{"may_$access"})
930	}	1680	}
931		1681
		1682	=item $player_object->enter_link
		1683
		1684	Freezes the player and moves him/her to a special map (C<{link}>).
		1685
		1686	The player should be reasonably safe there for short amounts of time. You
		1687	I<MUST> call C<leave_link> as soon as possible, though.
		1688
		1689	Will never block.
		1690
		1691	=item $player_object->leave_link ($map, $x, $y)
		1692
		1693	Moves the player out of the special C<{link}> map onto the specified
		1694	map. If the map is not valid (or omitted), the player will be moved back
		1695	to the location he/she was before the call to C<enter_link>, or, if that
		1696	fails, to the emergency map position.
		1697
		1698	Might block.
		1699
		1700	=cut
		1701
		1702	sub link_map {
		1703	unless ($LINK_MAP) {
		1704	$LINK_MAP = cf::map::find "{link}"
		1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1706	$LINK_MAP->load;
		1707	}
		1708
		1709	$LINK_MAP
		1710	}
		1711
		1712	sub cf::object::player::enter_link {
		1713	my ($self) = @_;
		1714
		1715	$self->deactivate_recursive;
		1716
		1717	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1718
		1719	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
		1720	if $self->map;
		1721
		1722	$self->enter_map ($LINK_MAP \|\| link_map, 20, 20);
		1723	}
		1724
		1725	sub cf::object::player::leave_link {
		1726	my ($self, $map, $x, $y) = @_;
		1727
		1728	my $link_pos = delete $self->{_link_pos};
		1729
		1730	unless ($map) {
		1731	# restore original map position
		1732	($map, $x, $y) = @{ $link_pos \|\| [] };
		1733	$map = cf::map::find $map;
		1734
		1735	unless ($map) {
		1736	($map, $x, $y) = @$EMERGENCY_POSITION;
		1737	$map = cf::map::find $map
		1738	or die "FATAL: cannot load emergency map\n";
		1739	}
		1740	}
		1741
		1742	($x, $y) = (-1, -1)
		1743	unless (defined $x) && (defined $y);
		1744
		1745	# use -1 or undef as default coordinates, not 0, 0
		1746	($x, $y) = ($map->enter_x, $map->enter_y)
		1747	if $x <=0 && $y <= 0;
		1748
		1749	$map->load;
		1750	$map->load_diag;
		1751
		1752	return unless $self->contr->active;
		1753	$self->activate_recursive;
		1754	$self->enter_map ($map, $x, $y);
		1755	}
		1756
		1757	cf::player->attach (
		1758	on_logout => sub {
		1759	my ($pl) = @_;
		1760
		1761	# abort map switching before logout
		1762	if ($pl->ob->{_link_pos}) {
		1763	cf::sync_job {
		1764	$pl->ob->leave_link
		1765	};
		1766	}
		1767	},
		1768	on_login => sub {
		1769	my ($pl) = @_;
		1770
		1771	# try to abort aborted map switching on player login :)
		1772	# should happen only on crashes
		1773	if ($pl->ob->{_link_pos}) {
		1774	$pl->ob->enter_link;
		1775	(async {
		1776	# we need this sleep as the login has a concurrent enter_exit running
		1777	# and this sleep increases chances of the player not ending up in scorn
		1778	$pl->ob->reply (undef,
		1779	"There was an internal problem at your last logout, "
		1780	. "the server will try to bring you to your intended destination in a second.",
		1781	cf::NDI_RED);
		1782	Coro::Timer::sleep 1;
		1783	$pl->ob->leave_link;
		1784	})->prio (2);
		1785	}
		1786	},
		1787	);
		1788
		1789	=item $player_object->goto ($path, $x, $y)
		1790
		1791	=cut
		1792
		1793	sub cf::object::player::goto {
		1794	my ($self, $path, $x, $y) = @_;
		1795
		1796	$self->enter_link;
		1797
		1798	(async {
		1799	my $map = cf::map::find $path;
		1800	$map = $map->customise_for ($self) if $map;
		1801
		1802	# warn "entering ", $map->path, " at ($x, $y)\n"
		1803	# if $map;
		1804
		1805	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		1806
		1807	$self->leave_link ($map, $x, $y);
		1808	})->prio (1);
		1809	}
		1810
		1811	=item $player_object->enter_exit ($exit_object)
		1812
		1813	=cut
		1814
		1815	sub parse_random_map_params {
		1816	my ($spec) = @_;
		1817
		1818	my $rmp = { # defaults
		1819	xsize => 10,
		1820	ysize => 10,
		1821	};
		1822
		1823	for (split /\n/, $spec) {
		1824	my ($k, $v) = split /\s+/, $_, 2;
		1825
		1826	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1827	}
		1828
		1829	$rmp
		1830	}
		1831
		1832	sub prepare_random_map {
		1833	my ($exit) = @_;
		1834
		1835	# all this does is basically replace the /! path by
		1836	# a new random map path (?random/...) with a seed
		1837	# that depends on the exit object
		1838
		1839	my $rmp = parse_random_map_params $exit->msg;
		1840
		1841	if ($exit->map) {
		1842	$rmp->{region} = $exit->map->region_name;
		1843	$rmp->{origin_map} = $exit->map->path;
		1844	$rmp->{origin_x} = $exit->x;
		1845	$rmp->{origin_y} = $exit->y;
		1846	}
		1847
		1848	$rmp->{random_seed} \|\|= $exit->random_seed;
		1849
		1850	my $data = cf::to_json $rmp;
		1851	my $md5 = Digest::MD5::md5_hex $data;
		1852
		1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY \| O_CREAT, 0666) {
		1854	aio_write $fh, 0, (length $data), $data, 0;
		1855
		1856	$exit->slaying ("?random/$md5");
		1857	$exit->msg (undef);
		1858	}
		1859	}
		1860
		1861	sub cf::object::player::enter_exit {
		1862	my ($self, $exit) = @_;
		1863
		1864	return unless $self->type == cf::PLAYER;
		1865
		1866	$self->enter_link;
		1867
		1868	(async {
		1869	$self->deactivate_recursive; # just to be sure
		1870	unless (eval {
		1871	prepare_random_map $exit
		1872	if $exit->slaying eq "/!";
		1873
		1874	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1876
		1877	1;
		1878	}) {
		1879	$self->message ("Something went wrong deep within the crossfire server. "
		1880	. "I'll try to bring you back to the map you were before. "
		1881	. "Please report this to the dungeon master!",
		1882	cf::NDI_UNIQUE \| cf::NDI_RED);
		1883
		1884	warn "ERROR in enter_exit: $@";
		1885	$self->leave_link;
		1886	}
		1887	})->prio (1);
		1888	}
		1889
932	=head3 cf::client	1890	=head3 cf::client
933		1891
934	=over 4	1892	=over 4
935		1893
936	=item $client->send_drawinfo ($text, $flags)	1894	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	1937	on_reply => sub {
980	my ($ns, $msg) = @_;	1938	my ($ns, $msg) = @_;
981		1939
982	# this weird shuffling is so that direct followup queries	1940	# this weird shuffling is so that direct followup queries
983	# get handled first	1941	# get handled first
984	my $queue = delete $ns->{query_queue};	1942	my $queue = delete $ns->{query_queue}
		1943	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		1944
986	(shift @$queue)->[1]->($msg);	1945	(shift @$queue)->[1]->($msg);
987		1946
988	push @{ $ns->{query_queue} }, @$queue;	1947	push @{ $ns->{query_queue} }, @$queue;
989		1948
…		…
995	}	1954	}
996	}	1955	}
997	},	1956	},
998	);	1957	);
999		1958
1000	=item $client->coro (\&cb)	1959	=item $client->async (\&cb)
1001		1960
1002	Create a new coroutine, running the specified callback. The coroutine will	1961	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	1962	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	1963	or loss of connection).
1005		1964
1006	=cut	1965	=cut
1007		1966
1008	sub cf::client::coro {	1967	sub cf::client::async {
1009	my ($self, $cb) = @_;	1968	my ($self, $cb) = @_;
1010		1969
1011	my $coro; $coro = async {	1970	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		1971
1018	$coro->on_destroy (sub {	1972	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	1973	delete $self->{_coro}{$coro+0};
1020	});	1974	});
1021		1975
…		…
1193		2147
1194	{	2148	{
1195	my $path = cf::localdir . "/database.pst";	2149	my $path = cf::localdir . "/database.pst";
1196		2150
1197	sub db_load() {	2151	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };	2152	$DB = stat $path ? Storable::retrieve $path : { };
1200	}	2153	}
1201		2154
1202	my $pid;	2155	my $pid;
1203		2156
1204	sub db_save() {	2157	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;	2158	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {	2159	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;	2160	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";	2161	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;	2162	rename "$path~", $path;
…		…
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2210	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2211	or return;
1260		2212
1261	local $/;	2213	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2214	*CFG = YAML::Syck::Load <$fh>;
		2215
		2216	$EMERGENCY_POSITION = $CFG{emergency_position} \|\| ["/world/world_105_115", 5, 37];
		2217
		2218	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2219	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2220
		2221	if (exists $CFG{mlockall}) {
		2222	eval {
		2223	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2224	and die "WARNING: m(un)lockall failed: $!\n";
		2225	};
		2226	warn $@ if $@;
		2227	}
1263	}	2228	}
1264		2229
1265	sub main {	2230	sub main {
		2231	# we must not ever block the main coroutine
		2232	local $Coro::idle = sub {
		2233	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2234	async { Event::one_event };
		2235	};
		2236
1266	cfg_load;	2237	cfg_load;
1267	db_load;	2238	db_load;
1268	load_extensions;	2239	load_extensions;
1269	Event::loop;	2240	Event::loop;
1270	}	2241	}
1271		2242
1272	#############################################################################	2243	#############################################################################
1273	# initialisation	2244	# initialisation and cleanup
1274		2245
		2246	# install some emergency cleanup handlers
		2247	BEGIN {
		2248	for my $signal (qw(INT HUP TERM)) {
		2249	Event->signal (
		2250	data => WF_AUTOCANCEL,
		2251	signal => $signal,
		2252	cb => sub {
		2253	cf::cleanup "SIG$signal";
		2254	},
		2255	);
		2256	}
		2257	}
		2258
		2259	sub emergency_save() {
		2260	my $freeze_guard = cf::freeze_mainloop;
		2261
		2262	warn "enter emergency perl save\n";
		2263
		2264	cf::sync_job {
		2265	# use a peculiar iteration method to avoid tripping on perl
		2266	# refcount bugs in for. also avoids problems with players
		2267	# and maps saved/destroyed asynchronously.
		2268	warn "begin emergency player save\n";
		2269	for my $login (keys %cf::PLAYER) {
		2270	my $pl = $cf::PLAYER{$login} or next;
		2271	$pl->valid or next;
		2272	$pl->save;
		2273	}
		2274	warn "end emergency player save\n";
		2275
		2276	warn "begin emergency map save\n";
		2277	for my $path (keys %cf::MAP) {
		2278	my $map = $cf::MAP{$path} or next;
		2279	$map->valid or next;
		2280	$map->save;
		2281	}
		2282	warn "end emergency map save\n";
		2283	};
		2284
		2285	warn "leave emergency perl save\n";
		2286	}
		2287
1275	sub _perl_reload() {	2288	sub reload() {
		2289	# can/must only be called in main
		2290	if ($Coro::current != $Coro::main) {
		2291	warn "can only reload from main coroutine\n";
		2292	return;
		2293	}
		2294
1276	warn "reloading...";	2295	warn "reloading...";
1277		2296
		2297	warn "freezing server";
		2298	my $guard = freeze_mainloop;
		2299	cf::emergency_save;
		2300
		2301	warn "sync database to disk";
		2302	cf::db_sync;
		2303	IO::AIO::flush;
		2304
1278	eval {	2305	eval {
1279	local $FREEZE = 1;	2306	# if anything goes wrong in here, we should simply crash as we already saved
1280		2307
1281	cf::emergency_save;
1282
1283	# cancel all watchers	2308	warn "cancel all watchers";
1284	for (Event::all_watchers) {	2309	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2310	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2311	}
1287		2312
1288	# cancel all extension coros	2313	warn "cancel all extension coros";
1289	$_->cancel for values %EXT_CORO;	2314	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2315	%EXT_CORO = ();
1291		2316
		2317	warn "remove commands";
		2318	%COMMAND = ();
		2319
		2320	warn "remove ext commands";
		2321	%EXTCMD = ();
		2322
1292	# unload all extensions	2323	warn "unload/nuke all extensions";
1293	for (@exts) {	2324	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2325	warn "... unloading $pkg";
1295	unload_extension $_;	2326
		2327	if (my $cb = $pkg->can ("unload")) {
		2328	eval {
		2329	$cb->($pkg);
		2330	1
		2331	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2332	}
1297		2333
		2334	warn "... nuking $pkg";
		2335	Symbol::delete_package $pkg;
		2336	}
		2337
1298	# unload all modules loaded from $LIBDIR	2338	warn "unload all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2339	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2341
1302	warn "removing <$k>";	2342	warn "removing <$k>";
1303	delete $INC{$k};	2343	delete $INC{$k};
…		…
1310	}	2350	}
1311		2351
1312	Symbol::delete_package $k;	2352	Symbol::delete_package $k;
1313	}	2353	}
1314		2354
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2355	warn "get rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2356	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2357	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2358
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2359	warn "unload cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2360	delete $INC{"cf.pm"};
1328		2361
1329	# don't, removes xs symbols, too,	2362	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2363	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2364	#Symbol::delete_package __PACKAGE__;
1332		2365
1333	# reload cf.pm
1334	warn "reloading cf.pm";	2366	warn "reloading cf.pm";
1335	require cf;	2367	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2369
1338	# load config and database again	2370	warn "load config and database again";
1339	cf::cfg_load;	2371	cf::cfg_load;
1340	cf::db_load;	2372	cf::db_load;
1341		2373
1342	# load extensions
1343	warn "load extensions";	2374	warn "load extensions";
1344	cf::load_extensions;	2375	cf::load_extensions;
1345		2376
1346	# reattach attachments to objects	2377	warn "reattach attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2378	_global_reattach;
		2379	warn "reattach attachments to maps";
		2380	reattach $_ for values %MAP;
1349	};	2381	};
1350	warn $@ if $@;	2382
		2383	if ($@) {
		2384	warn $@;
		2385	warn "error while reloading, exiting.";
		2386	exit 1;
		2387	}
1351		2388
1352	warn "reloaded";	2389	warn "reloaded";
1353	};	2390	};
1354		2391
1355	sub perl_reload() {
1356	_perl_reload;
1357	}
1358
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2392	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2393	my ($who, $arg) = @_;
1363		2394
1364	if ($who->flag (FLAG_WIZ)) {	2395	if ($who->flag (FLAG_WIZ)) {
		2396	$who->message ("start of reload.");
		2397	reload;
1365	$who->message ("reloading...");	2398	$who->message ("end of reload.");
1366	_perl_reload;
1367	}	2399	}
1368	};	2400	};
1369		2401
1370	unshift @INC, $LIBDIR;	2402	unshift @INC, $LIBDIR;
1371		2403
…		…
1373	reentrant => 0,	2405	reentrant => 0,
1374	prio => 0,	2406	prio => 0,
1375	at => $NEXT_TICK \|\| $TICK,	2407	at => $NEXT_TICK \|\| $TICK,
1376	data => WF_AUTOCANCEL,	2408	data => WF_AUTOCANCEL,
1377	cb => sub {	2409	cb => sub {
1378	unless ($FREEZE) {	2410	$NOW = Event::time;
		2411
1379	cf::server_tick; # one server iteration	2412	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2413	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2414	$NEXT_TICK += $TICK;
		2415
		2416	$WAIT_FOR_TICK->broadcast;
		2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1384		2418
1385	# if we are delayed by four ticks or more, skip them all	2419	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2421
1388	$TICK_WATCHER->at ($NEXT_TICK);	2422	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1390	},	2424	},
1391	);	2425	);
1392		2426
1393	IO::AIO::max_poll_time $TICK * 0.2;	2427	IO::AIO::max_poll_time $TICK * 0.2;
1394		2428
		2429	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2430	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2431	poll => 'r',
1397	prio => 5,	2432	prio => 5,
1398	data => WF_AUTOCANCEL,	2433	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2434	cb => \&IO::AIO::poll_cb,
		2435	);
1400		2436
1401	# we must not ever block the main coroutine	2437	$WRITE_RUNTIME_WATCHER = Event->timer (
1402	$Coro::idle = sub {	2438	data => WF_AUTOCANCEL,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2439	after => 0,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2440	interval => 10,
		2441	cb => sub {
1405	(Coro::unblock_sub {	2442	(Coro::unblock_sub {
1406	Event::one_event;	2443	write_runtime
		2444	or warn "ERROR: unable to write runtime file: $!";
1407	})->();	2445	})->();
1408	};	2446	},
		2447	);
		2448
		2449	END { cf::emergency_save }
1409		2450
1410	1	2451	1
1411		2452

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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 1.171 by root, Sun Jan 14 12:24:48 2007 UTC

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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 1.171 by root, Sun Jan 14 12:24:48 2007 UTC