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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.103 by root, Sat Dec 30 10:16:11 2006 UTC vs.
Revision 1.172 by root, Sun Jan 14 13:32:48 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		19
		20	use Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
19	use IO::AIO 2.3;	23	use IO::AIO 2.32 ();
20	use YAML::Syck ();	24	use YAML::Syck ();
21	use Time::HiRes;	25	use Time::HiRes;
22		26
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
24		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
27		33
28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		35
32	our %COMMAND = ();	36	our %COMMAND = ();
33	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
35		43
36	our @EVENT;	44	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
38		46
39	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
41	our $NEXT_TICK;	51	our $NEXT_TICK;
42	our $NOW;	52	our $NOW;
43		53
44	our %CFG;	54	our %CFG;
45		55
46	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	57	our $RUNTIME;
48		58
		59	our %PLAYER; # all users
49	our %MAP; # all maps	60	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
51	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
52		69
53	binmode STDOUT;	70	binmode STDOUT;
54	binmode STDERR;	71	binmode STDERR;
55		72
56	# read virtual server time, if available	73	# read virtual server time, if available
…		…
62		79
63	mkdir cf::localdir;	80	mkdir cf::localdir;
64	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
65	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
67		85
68	our %EXT_CORO;	86	our $EMERGENCY_POSITION;
69		87
70	#############################################################################	88	#############################################################################
71		89
72	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
73		91
…		…
97		115
98	=item %cf::CFG	116	=item %cf::CFG
99		117
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	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.
102		127
103	=back	128	=back
104		129
105	=cut	130	=cut
106		131
…		…
110	utf8::encode $msg;	135	utf8::encode $msg;
111		136
112	$msg .= "\n"	137	$msg .= "\n"
113	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
114		139
115	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
116	};	141	};
117	}	142	}
118		143
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
138		163
139	$Event::DIED = sub {	164	$Event::DIED = sub {
140	warn "error in event callback: @_";	165	warn "error in event callback: @_";
141	};	166	};
142		167
143	my %ext_pkg;
144	my @exts;
145	my @hook;
146
147	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
148		169
149	=over 4	170	=over 4
150		171
		172	=item dumpval $ref
		173
151	=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	}
152		194
153	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
154		196
155	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
156		198
…		…
172	sub to_json($) {	214	sub to_json($) {
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
175	}	217	}
176		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($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
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($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 $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
177	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
178		329
179	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
181		332
182	=cut	333	=cut
183		334
184	sub coro(&) {	335	sub async_ext(&) {
185	my $cb = shift;	336	my $cb = shift;
186		337
187	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		339
194	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
196	});	342	});
197	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
198		344
199	$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
200	}	368	}
201		369
202	=back	370	=back
203		371
204	=cut	372	=cut
…		…
335	our @CB_TYPE = (); # registry for type (cf-object class) based events	503	our @CB_TYPE = (); # registry for type (cf-object class) based events
336	our @CB_MAP = ();	504	our @CB_MAP = ();
337		505
338	my %attachment;	506	my %attachment;
339		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
340	sub _attach_cb($$$$) {	514	sub _attach_cb($$$$) {
341	my ($registry, $event, $prio, $cb) = @_;	515	my ($registry, $event, $prio, $cb) = @_;
342		516
343	use sort 'stable';	517	use sort 'stable';
344		518
…		…
515	# object support	689	# object support
516		690
517	sub reattach {	691	sub reattach {
518	# basically do the same as instantiate, without calling instantiate	692	# basically do the same as instantiate, without calling instantiate
519	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
520		696
521	my $registry = $obj->registry;	697	my $registry = $obj->registry;
522		698
523	@$registry = ();	699	@$registry = ();
524		700
…		…
563	);	739	);
564		740
565	sub object_freezer_save {	741	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	742	my ($filename, $rdata, $objs) = @_;
567		743
		744	sync_job {
568	if (length $$rdata) {	745	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	746	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	747	$filename, length $$rdata, scalar @$objs;
571		748
572	if (open my $fh, ">:raw", "$filename~") {	749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	750	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		752	aio_fsync $fh;
580	close $fh;	753	close $fh;
		754
		755	if (@$objs) {
		756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		757	chmod SAVE_MODE, $fh;
		758	my $data = Storable::nfreeze { version => 1, objs => $objs };
		759	aio_write $fh, 0, (length $data), $data, 0;
		760	aio_fsync $fh;
		761	close $fh;
581	rename "$filename.pst~", "$filename.pst";	762	aio_rename "$filename.pst~", "$filename.pst";
		763	}
		764	} else {
		765	aio_unlink "$filename.pst";
		766	}
		767
		768	aio_rename "$filename~", $filename;
582	} else {	769	} else {
583	unlink "$filename.pst";	770	warn "FATAL: $filename~: $!\n";
584	}	771	}
585
586	rename "$filename~", $filename;
587	} else {	772	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	773	aio_unlink $filename;
592	unlink "$filename.pst";	774	aio_unlink "$filename.pst";
		775	}
593	}	776	}
594	}	777	}
595		778
596	sub object_freezer_as_string {	779	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	780	my ($rdata, $objs) = @_;
…		…
602	}	785	}
603		786
604	sub object_thawer_load {	787	sub object_thawer_load {
605	my ($filename) = @_;	788	my ($filename) = @_;
606		789
607	local $/;	790	my ($data, $av);
608		791
609	my $av;	792	(aio_load $filename, $data) >= 0
		793	or return;
610		794
611	#TODO: use sysread etc.	795	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	796	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	797	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	798	$av = eval { (Storable::thaw $av)->{objs} };
616	}	799	}
		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
617	return ($data, $av);	803	return ($data, $av);
618	}
619
620	()
621	}	804	}
622		805
623	#############################################################################	806	#############################################################################
624	# command handling &c	807	# command handling &c
625		808
…		…
649	=cut	832	=cut
650		833
651	sub register_extcmd {	834	sub register_extcmd {
652	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
653		836
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	837	$EXTCMD{$name} = $cb;
658	}	838	}
659		839
660	cf::player->attach (	840	cf::player->attach (
661	on_command => sub {	841	on_command => sub {
662	my ($pl, $name, $params) = @_;	842	my ($pl, $name, $params) = @_;
…		…
675		855
676	my $msg = eval { from_json $buf };	856	my $msg = eval { from_json $buf };
677		857
678	if (ref $msg) {	858	if (ref $msg) {
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	860	if (my %reply = $cb->($pl, $msg)) {
681	$pl->ext_reply ($msg->{msgid}, %reply);	861	$pl->ext_reply ($msg->{msgid}, %reply);
682	}	862	}
683	}	863	}
684	} else {	864	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
687		867
688	cf::override;	868	cf::override;
689	},	869	},
690	);	870	);
691		871
692	sub register {
693	my ($base, $pkg) = @_;
694
695	#TODO
696	}
697
698	sub load_extension {	872	sub load_extension {
699	my ($path) = @_;	873	my ($path) = @_;
700		874
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
702	my $base = $1;	876	my $base = $1;
703	my $pkg = $1;	877	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
706		880
707	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
708		882
709	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
710	or die "$path: $!";	884	or die "$path: $!";
711		885
712	my $source =	886	my $source =
713	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
714	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
715	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
716	. "\n};\n1";	890	. "\n};\n1";
717		891
718	eval $source	892	unless (eval $source) {
719	or die $@ ? "$path: $@\n"	893	my $msg = $@ ? "$path: $@\n"
720	: "extension disabled.\n";	894	: "extension disabled.\n";
721		895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
722	push @exts, $pkg;	896	warn $@;
723	$ext_pkg{$base} = $pkg;	897	warn "mandatory extension failed to load, exiting.\n";
724		898	exit 1;
725	# no strict 'refs';	899	}
726	# @{"$pkg\::ISA"} = ext::;	900	die $@;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }	901	}
741		902
742	# remove commands	903	push @EXTS, $pkg;
743	for my $name (keys %COMMAND) {
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
745
746	if (@cb) {
747	$COMMAND{$name} = \@cb;
748	} else {
749	delete $COMMAND{$name};
750	}
751	}
752
753	# remove extcmds
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
755	delete $EXTCMD{$name};
756	}
757
758	if (my $cb = $pkg->can ("unload")) {
759	eval {
760	$cb->($pkg);
761	1
762	} or warn "$pkg unloaded, but with errors: $@";
763	}
764
765	Symbol::delete_package $pkg;
766	}	904	}
767		905
768	sub load_extensions {	906	sub load_extensions {
769	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
770	next unless -r $ext;	908	next unless -r $ext;
…		…
774	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
775	}	913	}
776	}	914	}
777		915
778	#############################################################################	916	#############################################################################
779	# load/save/clean perl data associated with a map
780		917
781	*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	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	$cf::WAIT_FOR_TICK->wait;
		1345	$map->reset;
		1346	undef $guard;
		1347	$map = find $path
		1348	or return;
		1349	}
		1350
		1351	$cf::MAP{$path} = $map
		1352	}
		1353	}
		1354
		1355	sub load {
		1356	my ($self) = @_;
		1357
		1358	my $path = $self->{path};
		1359	my $guard = cf::lock_acquire "map_load:$path";
		1360
		1361	return if $self->in_memory != cf::MAP_SWAPPED;
		1362
		1363	$self->in_memory (cf::MAP_LOADING);
		1364
		1365	$self->alloc;
		1366	$self->_load_objects ($self->{load_path}, 1)
		1367	or return;
		1368
		1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1370	if delete $self->{load_original};
		1371
		1372	if (my $uniq = $self->uniq_path) {
		1373	utf8::encode $uniq;
		1374	if (aio_open $uniq, O_RDONLY, 0) {
		1375	$self->clear_unique_items;
		1376	$self->_load_objects ($uniq, 0);
		1377	}
		1378	}
		1379
		1380	Coro::cede;
		1381
		1382	# now do the right thing for maps
		1383	$self->link_multipart_objects;
		1384
		1385	unless ($self->{deny_activate}) {
		1386	$self->decay_objects;
		1387	$self->fix_auto_apply;
		1388	$self->update_buttons;
		1389	Coro::cede;
		1390	$self->set_darkness_map;
		1391	$self->difficulty ($self->estimate_difficulty)
		1392	unless $self->difficulty;
		1393	Coro::cede;
		1394	$self->activate;
		1395	}
		1396
		1397	$self->in_memory (cf::MAP_IN_MEMORY);
		1398	}
		1399
		1400	sub customise_for {
		1401	my ($self, $ob) = @_;
		1402
		1403	return find "~" . $ob->name . "/" . $self->{path}
		1404	if $self->per_player;
		1405
		1406	$self
		1407	}
		1408
		1409	# find and load all maps in the 3x3 area around a map
		1410	sub load_diag {
782	my ($map) = @_;	1411	my ($map) = @_;
783		1412
784	my $path = $map->tmpname;	1413	my @diag; # diagonal neighbours
785	defined $path or return;
786		1414
787	unlink "$path.pst";	1415	for (0 .. 3) {
		1416	my $neigh = $map->tile_path ($_)
		1417	or next;
		1418	$neigh = find $neigh, $map
		1419	or next;
		1420	$neigh->load;
		1421
		1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1424	}
		1425
		1426	for (@diag) {
		1427	my $neigh = find @$_
		1428	or next;
		1429	$neigh->load;
		1430	}
		1431	}
		1432
		1433	sub find_sync {
		1434	my ($path, $origin) = @_;
		1435
		1436	cf::sync_job { find $path, $origin }
		1437	}
		1438
		1439	sub do_load_sync {
		1440	my ($map) = @_;
		1441
		1442	cf::sync_job { $map->load };
		1443	}
		1444
		1445	our %MAP_PREFETCH;
		1446	our $MAP_PREFETCHER = Coro::async {
		1447	while () {
		1448	for my $path (keys %MAP_PREFETCH) {
		1449	my $map = find $path
		1450	or next;
		1451	$map->load;
		1452
		1453	delete $MAP_PREFETCH{$path};
		1454	}
		1455	Coro::schedule;
		1456	}
788	};	1457	};
789		1458
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1459	sub find_async {
		1460	my ($path, $origin) = @_;
791		1461
792	#############################################################################	1462	$path = normalise $path, $origin && $origin->{path};
793	# load/save perl data associated with player->ob objects
794		1463
795	sub all_objects(@) {	1464	if (my $map = $cf::MAP{$path}) {
796	@_, map all_objects ($_->inv), @_	1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
797	}
798
799	# TODO: compatibility cruft, remove when no longer needed
800	cf::player->attach (
801	on_load => sub {
802	my ($pl, $path) = @_;
803
804	for my $o (all_objects $pl->ob) {
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {
806	$o->set_ob_key_value ("_perl_data");
807
808	%$o = %{ Storable::thaw pack "H*", $value };
809	}
810	}
811	},	1466	}
812	);
813		1467
814	#############################################################################	1468	$MAP_PREFETCH{$path} = 0;
		1469	$MAP_PREFETCHER->ready;
815		1470
816	=head2 CORE EXTENSIONS	1471	()
		1472	}
817		1473
818	Functions and methods that extend core crossfire objects.	1474	sub save {
		1475	my ($self) = @_;
819		1476
820	=head3 cf::player	1477	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1478
		1479	$self->{last_save} = $cf::RUNTIME;
		1480
		1481	return unless $self->dirty;
		1482
		1483	my $save = $self->save_path; utf8::encode $save;
		1484	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1485
		1486	$self->{load_path} = $save;
		1487
		1488	return if $self->{deny_save};
		1489
		1490	local $self->{last_access} = $self->last_access;#d#
		1491
		1492	cf::async {
		1493	$_->contr->save for $self->players;
		1494	};
		1495
		1496	if ($uniq) {
		1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1498	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1499	} else {
		1500	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1501	}
		1502	}
		1503
		1504	sub swap_out {
		1505	my ($self) = @_;
		1506
		1507	# save first because save cedes
		1508	$self->save;
		1509
		1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1511
		1512	return if $self->players;
		1513	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1514	return if $self->{deny_save};
		1515
		1516	$self->clear;
		1517	$self->in_memory (cf::MAP_SWAPPED);
		1518	}
		1519
		1520	sub reset_at {
		1521	my ($self) = @_;
		1522
		1523	# TODO: safety, remove and allow resettable per-player maps
		1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1525	return 1e99 if $self->{deny_reset};
		1526
		1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1529
		1530	$time + $to
		1531	}
		1532
		1533	sub should_reset {
		1534	my ($self) = @_;
		1535
		1536	$self->reset_at <= $cf::RUNTIME
		1537	}
		1538
		1539	sub rename {
		1540	my ($self, $new_path) = @_;
		1541
		1542	normalise $new_path;
		1543
		1544	$self->unlink_save;
		1545
		1546	delete $cf::MAP{$self->path};
		1547	$self->{path} = $new_path; $self->path ($self->{path});
		1548	$cf::MAP{$self->path} = $self;
		1549
		1550	$self->save;
		1551	}
		1552
		1553	sub reset {
		1554	my ($self) = @_;
		1555
		1556	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1557
		1558	return if $self->players;
		1559	return if $self->isa ("ext::map_per_player");#d#
		1560
		1561	warn "resetting map ", $self->path;#d#
		1562
		1563	delete $cf::MAP{$self->path};
		1564
		1565	$self->in_memory (cf::MAP_SWAPPED);
		1566	$self->clear;
		1567
		1568	$_->clear_links_to ($self) for values %cf::MAP;
		1569
		1570	$self->unlink_save;
		1571	$self->destroy;
		1572	}
		1573
		1574	my $nuke_counter = "aaaa";
		1575
		1576	sub nuke {
		1577	my ($self) = @_;
		1578
		1579	$self->{deny_save} = 1;
		1580	$self->reset_timeout (1);
		1581	$self->rename ("{nuke}/" . ($nuke_counter++));
		1582	$self->reset; # polite request, might not happen
		1583	}
		1584
		1585	=item cf::map::unique_maps
		1586
		1587	Returns an arrayref of paths of all shared maps that have
		1588	instantiated unique items. May block.
		1589
		1590	=cut
		1591
		1592	sub unique_maps() {
		1593	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1594	or return;
		1595
		1596	my @paths;
		1597
		1598	for (@$files) {
		1599	utf8::decode $_;
		1600	next if /\.pst$/;
		1601	next unless /^$PATH_SEP/o;
		1602
		1603	s/\.map$//;
		1604	push @paths, $_;
		1605	}
		1606
		1607	\@paths
		1608	}
		1609
		1610	package cf;
		1611
		1612	=back
		1613
		1614	=head3 cf::object
		1615
		1616	=cut
		1617
		1618	package cf::object;
821		1619
822	=over 4	1620	=over 4
823		1621
824	=item cf::player::exists $login	1622	=item $ob->inv_recursive
825		1623
826	Returns true when the given account exists.	1624	Returns the inventory of the object _and_ their inventories, recursively.
827		1625
828	=cut	1626	=cut
829		1627
830	sub cf::player::exists($) {	1628	sub inv_recursive_;
831	cf::player::find $_[0]	1629	sub inv_recursive_ {
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1630	map { $_, inv_recursive_ $_->inv } @_
833	}	1631	}
834		1632
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	1633	sub inv_recursive {
836		1634	inv_recursive_ inv $_[0]
837	Sends an ext reply to the player.
838
839	=cut
840
841	sub cf::player::ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;
843
844	$msg{msgid} = $id;
845
846	$self->send ("ext " . to_json \%msg);
847	}	1635	}
		1636
		1637	package cf;
848		1638
849	=back	1639	=back
850		1640
851	=head3 cf::object::player	1641	=head3 cf::object::player
852		1642
…		…
890	(ref $cf::CFG{"may_$access"}	1680	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1681	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	1682	: $cf::CFG{"may_$access"})
893	}	1683	}
894		1684
		1685	=item $player_object->enter_link
		1686
		1687	Freezes the player and moves him/her to a special map (C<{link}>).
		1688
		1689	The player should be reasonably safe there for short amounts of time. You
		1690	I<MUST> call C<leave_link> as soon as possible, though.
		1691
		1692	Will never block.
		1693
		1694	=item $player_object->leave_link ($map, $x, $y)
		1695
		1696	Moves the player out of the special C<{link}> map onto the specified
		1697	map. If the map is not valid (or omitted), the player will be moved back
		1698	to the location he/she was before the call to C<enter_link>, or, if that
		1699	fails, to the emergency map position.
		1700
		1701	Might block.
		1702
		1703	=cut
		1704
		1705	sub link_map {
		1706	unless ($LINK_MAP) {
		1707	$LINK_MAP = cf::map::find "{link}"
		1708	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1709	$LINK_MAP->load;
		1710	}
		1711
		1712	$LINK_MAP
		1713	}
		1714
		1715	sub cf::object::player::enter_link {
		1716	my ($self) = @_;
		1717
		1718	$self->deactivate_recursive;
		1719
		1720	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1721
		1722	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1723	if $self->map;
		1724
		1725	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1726	}
		1727
		1728	sub cf::object::player::leave_link {
		1729	my ($self, $map, $x, $y) = @_;
		1730
		1731	my $link_pos = delete $self->{_link_pos};
		1732
		1733	unless ($map) {
		1734	# restore original map position
		1735	($map, $x, $y) = @{ $link_pos || [] };
		1736	$map = cf::map::find $map;
		1737
		1738	unless ($map) {
		1739	($map, $x, $y) = @$EMERGENCY_POSITION;
		1740	$map = cf::map::find $map
		1741	or die "FATAL: cannot load emergency map\n";
		1742	}
		1743	}
		1744
		1745	($x, $y) = (-1, -1)
		1746	unless (defined $x) && (defined $y);
		1747
		1748	# use -1 or undef as default coordinates, not 0, 0
		1749	($x, $y) = ($map->enter_x, $map->enter_y)
		1750	if $x <=0 && $y <= 0;
		1751
		1752	$map->load;
		1753	$map->load_diag;
		1754
		1755	return unless $self->contr->active;
		1756	$self->activate_recursive;
		1757	$self->enter_map ($map, $x, $y);
		1758	}
		1759
		1760	cf::player->attach (
		1761	on_logout => sub {
		1762	my ($pl) = @_;
		1763
		1764	# abort map switching before logout
		1765	if ($pl->ob->{_link_pos}) {
		1766	cf::sync_job {
		1767	$pl->ob->leave_link
		1768	};
		1769	}
		1770	},
		1771	on_login => sub {
		1772	my ($pl) = @_;
		1773
		1774	# try to abort aborted map switching on player login :)
		1775	# should happen only on crashes
		1776	if ($pl->ob->{_link_pos}) {
		1777	$pl->ob->enter_link;
		1778	(async {
		1779	# we need this sleep as the login has a concurrent enter_exit running
		1780	# and this sleep increases chances of the player not ending up in scorn
		1781	$pl->ob->reply (undef,
		1782	"There was an internal problem at your last logout, "
		1783	. "the server will try to bring you to your intended destination in a second.",
		1784	cf::NDI_RED);
		1785	Coro::Timer::sleep 1;
		1786	$pl->ob->leave_link;
		1787	})->prio (2);
		1788	}
		1789	},
		1790	);
		1791
		1792	=item $player_object->goto ($path, $x, $y)
		1793
		1794	=cut
		1795
		1796	sub cf::object::player::goto {
		1797	my ($self, $path, $x, $y) = @_;
		1798
		1799	$self->enter_link;
		1800
		1801	(async {
		1802	my $map = cf::map::find $path;
		1803	$map = $map->customise_for ($self) if $map;
		1804
		1805	# warn "entering ", $map->path, " at ($x, $y)\n"
		1806	# if $map;
		1807
		1808	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1809
		1810	$self->leave_link ($map, $x, $y);
		1811	})->prio (1);
		1812	}
		1813
		1814	=item $player_object->enter_exit ($exit_object)
		1815
		1816	=cut
		1817
		1818	sub parse_random_map_params {
		1819	my ($spec) = @_;
		1820
		1821	my $rmp = { # defaults
		1822	xsize => 10,
		1823	ysize => 10,
		1824	};
		1825
		1826	for (split /\n/, $spec) {
		1827	my ($k, $v) = split /\s+/, $_, 2;
		1828
		1829	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1830	}
		1831
		1832	$rmp
		1833	}
		1834
		1835	sub prepare_random_map {
		1836	my ($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
		1856	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1857	aio_write $fh, 0, (length $data), $data, 0;
		1858
		1859	$exit->slaying ("?random/$md5");
		1860	$exit->msg (undef);
		1861	}
		1862	}
		1863
		1864	sub cf::object::player::enter_exit {
		1865	my ($self, $exit) = @_;
		1866
		1867	return unless $self->type == cf::PLAYER;
		1868
		1869	$self->enter_link;
		1870
		1871	(async {
		1872	$self->deactivate_recursive; # just to be sure
		1873	unless (eval {
		1874	prepare_random_map $exit
		1875	if $exit->slaying eq "/!";
		1876
		1877	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1878	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1879
		1880	1;
		1881	}) {
		1882	$self->message ("Something went wrong deep within the crossfire server. "
		1883	. "I'll try to bring you back to the map you were before. "
		1884	. "Please report this to the dungeon master!",
		1885	cf::NDI_UNIQUE | cf::NDI_RED);
		1886
		1887	warn "ERROR in enter_exit: $@";
		1888	$self->leave_link;
		1889	}
		1890	})->prio (1);
		1891	}
		1892
895	=head3 cf::client	1893	=head3 cf::client
896		1894
897	=over 4	1895	=over 4
898		1896
899	=item $client->send_drawinfo ($text, $flags)	1897	=item $client->send_drawinfo ($text, $flags)
…		…
942	on_reply => sub {	1940	on_reply => sub {
943	my ($ns, $msg) = @_;	1941	my ($ns, $msg) = @_;
944		1942
945	# this weird shuffling is so that direct followup queries	1943	# this weird shuffling is so that direct followup queries
946	# get handled first	1944	# get handled first
947	my $queue = delete $ns->{query_queue};	1945	my $queue = delete $ns->{query_queue}
		1946	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		1947
949	(shift @$queue)->[1]->($msg);	1948	(shift @$queue)->[1]->($msg);
950		1949
951	push @{ $ns->{query_queue} }, @$queue;	1950	push @{ $ns->{query_queue} }, @$queue;
952		1951
…		…
958	}	1957	}
959	}	1958	}
960	},	1959	},
961	);	1960	);
962		1961
963	=item $client->coro (\&cb)	1962	=item $client->async (\&cb)
964		1963
965	Create a new coroutine, running the specified callback. The coroutine will	1964	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	1965	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	1966	or loss of connection).
968		1967
969	=cut	1968	=cut
970		1969
971	sub cf::client::coro {	1970	sub cf::client::async {
972	my ($self, $cb) = @_;	1971	my ($self, $cb) = @_;
973		1972
974	my $coro; $coro = async {	1973	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		1974
981	$coro->on_destroy (sub {	1975	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	1976	delete $self->{_coro}{$coro+0};
983	});	1977	});
984		1978
…		…
1156		2150
1157	{	2151	{
1158	my $path = cf::localdir . "/database.pst";	2152	my $path = cf::localdir . "/database.pst";
1159		2153
1160	sub db_load() {	2154	sub db_load() {
1161	warn "loading database $path\n";#d# remove later
1162	$DB = stat $path ? Storable::retrieve $path : { };	2155	$DB = stat $path ? Storable::retrieve $path : { };
1163	}	2156	}
1164		2157
1165	my $pid;	2158	my $pid;
1166		2159
1167	sub db_save() {	2160	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;	2161	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {	2162	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;	2163	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";	2164	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;	2165	rename "$path~", $path;
…		…
1221	open my $fh, "<:utf8", cf::confdir . "/config"	2213	open my $fh, "<:utf8", cf::confdir . "/config"
1222	or return;	2214	or return;
1223		2215
1224	local $/;	2216	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	2217	*CFG = YAML::Syck::Load <$fh>;
		2218
		2219	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2220
		2221	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2222	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2223
		2224	if (exists $CFG{mlockall}) {
		2225	eval {
		2226	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2227	and die "WARNING: m(un)lockall failed: $!\n";
		2228	};
		2229	warn $@ if $@;
		2230	}
1226	}	2231	}
1227		2232
1228	sub main {	2233	sub main {
		2234	# we must not ever block the main coroutine
		2235	local $Coro::idle = sub {
		2236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2237	async { Event::one_event };
		2238	};
		2239
1229	cfg_load;	2240	cfg_load;
1230	db_load;	2241	db_load;
1231	load_extensions;	2242	load_extensions;
1232	Event::loop;	2243	Event::loop;
1233	}	2244	}
1234		2245
1235	#############################################################################	2246	#############################################################################
1236	# initialisation	2247	# initialisation and cleanup
1237		2248
		2249	# install some emergency cleanup handlers
		2250	BEGIN {
		2251	for my $signal (qw(INT HUP TERM)) {
		2252	Event->signal (
		2253	data => WF_AUTOCANCEL,
		2254	signal => $signal,
		2255	cb => sub {
		2256	cf::cleanup "SIG$signal";
		2257	},
		2258	);
		2259	}
		2260	}
		2261
		2262	sub emergency_save() {
		2263	my $freeze_guard = cf::freeze_mainloop;
		2264
		2265	warn "enter emergency perl save\n";
		2266
		2267	cf::sync_job {
		2268	# use a peculiar iteration method to avoid tripping on perl
		2269	# refcount bugs in for. also avoids problems with players
		2270	# and maps saved/destroyed asynchronously.
		2271	warn "begin emergency player save\n";
		2272	for my $login (keys %cf::PLAYER) {
		2273	my $pl = $cf::PLAYER{$login} or next;
		2274	$pl->valid or next;
		2275	$pl->save;
		2276	}
		2277	warn "end emergency player save\n";
		2278
		2279	warn "begin emergency map save\n";
		2280	for my $path (keys %cf::MAP) {
		2281	my $map = $cf::MAP{$path} or next;
		2282	$map->valid or next;
		2283	$map->save;
		2284	}
		2285	warn "end emergency map save\n";
		2286	};
		2287
		2288	warn "leave emergency perl save\n";
		2289	}
		2290
1238	sub _perl_reload() {	2291	sub reload() {
		2292	# can/must only be called in main
		2293	if ($Coro::current != $Coro::main) {
		2294	warn "can only reload from main coroutine\n";
		2295	return;
		2296	}
		2297
1239	warn "reloading...";	2298	warn "reloading...";
1240		2299
		2300	warn "freezing server";
		2301	my $guard = freeze_mainloop;
		2302	cf::emergency_save;
		2303
		2304	warn "sync database to disk";
		2305	cf::db_sync;
		2306	IO::AIO::flush;
		2307
1241	eval {	2308	eval {
1242	local $FREEZE = 1;	2309	# if anything goes wrong in here, we should simply crash as we already saved
1243		2310
1244	cf::emergency_save;
1245
1246	# cancel all watchers	2311	warn "cancel all watchers";
1247	for (Event::all_watchers) {	2312	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	2313	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	2314	}
1250		2315
1251	# cancel all extension coros	2316	warn "cancel all extension coros";
1252	$_->cancel for values %EXT_CORO;	2317	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	2318	%EXT_CORO = ();
1254		2319
		2320	warn "remove commands";
		2321	%COMMAND = ();
		2322
		2323	warn "remove ext commands";
		2324	%EXTCMD = ();
		2325
1255	# unload all extensions	2326	warn "unload/nuke all extensions";
1256	for (@exts) {	2327	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	2328	warn "... unloading $pkg";
1258	unload_extension $_;	2329
		2330	if (my $cb = $pkg->can ("unload")) {
		2331	eval {
		2332	$cb->($pkg);
		2333	1
		2334	} or warn "$pkg unloaded, but with errors: $@";
1259	}	2335	}
1260		2336
		2337	warn "... nuking $pkg";
		2338	Symbol::delete_package $pkg;
		2339	}
		2340
1261	# unload all modules loaded from $LIBDIR	2341	warn "unload all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	2342	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		2344
1265	warn "removing <$k>";	2345	warn "removing <$k>";
1266	delete $INC{$k};	2346	delete $INC{$k};
…		…
1273	}	2353	}
1274		2354
1275	Symbol::delete_package $k;	2355	Symbol::delete_package $k;
1276	}	2356	}
1277		2357
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	2358	warn "get rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	2359	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		2361
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	2362	warn "unload cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	2363	delete $INC{"cf.pm"};
1291		2364
1292	# don't, removes xs symbols, too,	2365	# don't, removes xs symbols, too,
1293	# and global variables created in xs	2366	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	2367	#Symbol::delete_package __PACKAGE__;
1295		2368
1296	# reload cf.pm
1297	warn "reloading cf.pm";	2369	warn "reloading cf.pm";
1298	require cf;	2370	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		2372
1301	# load config and database again	2373	warn "load config and database again";
1302	cf::cfg_load;	2374	cf::cfg_load;
1303	cf::db_load;	2375	cf::db_load;
1304		2376
1305	# load extensions
1306	warn "load extensions";	2377	warn "load extensions";
1307	cf::load_extensions;	2378	cf::load_extensions;
1308		2379
1309	# reattach attachments to objects	2380	warn "reattach attachments to objects/players";
1310	warn "reattach";
1311	_global_reattach;	2381	_global_reattach;
		2382	warn "reattach attachments to maps";
		2383	reattach $_ for values %MAP;
1312	};	2384	};
1313	warn $@ if $@;	2385
		2386	if ($@) {
		2387	warn $@;
		2388	warn "error while reloading, exiting.";
		2389	exit 1;
		2390	}
1314		2391
1315	warn "reloaded";	2392	warn "reloaded";
1316	};	2393	};
1317		2394
1318	sub perl_reload() {
1319	_perl_reload;
1320	}
1321
1322	register "<global>", __PACKAGE__;
1323
1324	register_command "perl-reload" => sub {	2395	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	2396	my ($who, $arg) = @_;
1326		2397
1327	if ($who->flag (FLAG_WIZ)) {	2398	if ($who->flag (FLAG_WIZ)) {
		2399	$who->message ("start of reload.");
		2400	reload;
1328	$who->message ("reloading...");	2401	$who->message ("end of reload.");
1329	_perl_reload;
1330	}	2402	}
1331	};	2403	};
1332		2404
1333	unshift @INC, $LIBDIR;	2405	unshift @INC, $LIBDIR;
1334		2406
1335	$TICK_WATCHER = Event->timer (	2407	$TICK_WATCHER = Event->timer (
		2408	reentrant => 0,
1336	prio => 0,	2409	prio => 0,
1337	at => $NEXT_TICK || $TICK,	2410	at => $NEXT_TICK || $TICK,
1338	data => WF_AUTOCANCEL,	2411	data => WF_AUTOCANCEL,
1339	cb => sub {	2412	cb => sub {
1340	unless ($FREEZE) {	2413	$NOW = Event::time;
		2414
1341	cf::server_tick; # one server iteration	2415	cf::server_tick; # one server iteration
1342	$RUNTIME += $TICK;	2416	$RUNTIME += $TICK;
1343	}
1344
1345	$NEXT_TICK += $TICK;	2417	$NEXT_TICK += $TICK;
		2418
		2419	$WAIT_FOR_TICK->broadcast;
		2420	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1346		2421
1347	# if we are delayed by four ticks or more, skip them all	2422	# if we are delayed by four ticks or more, skip them all
1348	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2423	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1349		2424
1350	$TICK_WATCHER->at ($NEXT_TICK);	2425	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1352	},	2427	},
1353	);	2428	);
1354		2429
1355	IO::AIO::max_poll_time $TICK * 0.2;	2430	IO::AIO::max_poll_time $TICK * 0.2;
1356		2431
		2432	$AIO_POLL_WATCHER = Event->io (
1357	Event->io (fd => IO::AIO::poll_fileno,	2433	fd => IO::AIO::poll_fileno,
1358	poll => 'r',	2434	poll => 'r',
1359	prio => 5,	2435	prio => 5,
1360	data => WF_AUTOCANCEL,	2436	data => WF_AUTOCANCEL,
1361	cb => \&IO::AIO::poll_cb);	2437	cb => \&IO::AIO::poll_cb,
		2438	);
1362		2439
1363	# we must not ever block the main coroutine	2440	$WRITE_RUNTIME_WATCHER = Event->timer (
1364	$Coro::idle = sub {	2441	data => WF_AUTOCANCEL,
1365	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2442	after => 0,
1366	warn "FATAL: Coro::idle was called, major BUG\n";	2443	interval => 10,
		2444	cb => sub {
1367	(Coro::unblock_sub {	2445	(Coro::unblock_sub {
1368	Event::one_event;	2446	write_runtime
		2447	or warn "ERROR: unable to write runtime file: $!";
1369	})->();	2448	})->();
1370	};	2449	},
		2450	);
		2451
		2452	END { cf::emergency_save }
1371		2453
1372	1	2454	1
1373		2455

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