ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC vs.
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.3 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
		21	use Digest::MD5;
20	use Fcntl;	22	use Fcntl;
21	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
22	use YAML::Syck ();	24	use YAML::Syck ();
23	use Time::HiRes;	25	use Time::HiRes;
24		26
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
26		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
29		33
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		35
34	our %COMMAND = ();	36	our %COMMAND = ();
35	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
37		43
38	our @EVENT;	44	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
40		46
41	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
…		…
46	our %CFG;	52	our %CFG;
47		53
48	our $UPTIME; $UPTIME ||= time;	54	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	55	our $RUNTIME;
50		56
		57	our %PLAYER; # all users
51	our %MAP; # all maps	58	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	59	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	60	our $RANDOM_MAPS = cf::localdir . "/random";
		61
		62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		64
		65	# used to convert map paths into valid unix filenames by replacing / by ∕
		66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		67
55	binmode STDOUT;	68	binmode STDOUT;
56	binmode STDERR;	69	binmode STDERR;
57		70
58	# read virtual server time, if available	71	# read virtual server time, if available
…		…
64		77
65	mkdir cf::localdir;	78	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	79	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	80	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	81	mkdir cf::localdir . "/" . cf::uniquedir;
		82	mkdir $RANDOM_MAPS;
69		83
70	our %EXT_CORO;	84	our $EMERGENCY_POSITION;
71		85
72	#############################################################################	86	#############################################################################
73		87
74	=head2 GLOBAL VARIABLES	88	=head2 GLOBAL VARIABLES
75		89
…		…
99		113
100	=item %cf::CFG	114	=item %cf::CFG
101		115
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	116	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	117	from wherever your confdir points to.
		118
		119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		120
		121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		123	processing has been done. Call C<< ->wait >> on them to maximise the
		124	window of cpu time available, or simply to synchronise to the server tick.
104		125
105	=back	126	=back
106		127
107	=cut	128	=cut
108		129
…		…
112	utf8::encode $msg;	133	utf8::encode $msg;
113		134
114	$msg .= "\n"	135	$msg .= "\n"
115	unless $msg =~ /\n$/;	136	unless $msg =~ /\n$/;
116		137
117	LOG llevError, "cfperl: $msg";	138	LOG llevError, $msg;
118	};	139	};
119	}	140	}
120		141
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		161
141	$Event::DIED = sub {	162	$Event::DIED = sub {
142	warn "error in event callback: @_";	163	warn "error in event callback: @_";
143	};	164	};
144		165
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	166	=head2 UTILITY FUNCTIONS
150		167
151	=over 4	168	=over 4
152		169
		170	=item dumpval $ref
		171
153	=cut	172	=cut
		173
		174	sub dumpval {
		175	eval {
		176	local $SIG{__DIE__};
		177	my $d;
		178	if (1) {
		179	$d = new Data::Dumper([$_[0]], ["*var"]);
		180	$d->Terse(1);
		181	$d->Indent(2);
		182	$d->Quotekeys(0);
		183	$d->Useqq(1);
		184	#$d->Bless(...);
		185	$d->Seen($_[1]) if @_ > 1;
		186	$d = $d->Dump();
		187	}
		188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		189	$d
		190	} || "[unable to dump $_[0]: '$@']";
		191	}
154		192
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	193	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		194
157	=item $ref = cf::from_json $json	195	=item $ref = cf::from_json $json
158		196
…		…
173		211
174	sub to_json($) {	212	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	214	JSON::Syck::Dump $_[0]
177	}	215	}
		216
		217	=item cf::lock_wait $string
		218
		219	Wait until the given lock is available. See cf::lock_acquire.
		220
		221	=item my $lock = cf::lock_acquire $string
		222
		223	Wait until the given lock is available and then acquires it and returns
		224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		225	for example when the coroutine gets canceled), the lock is automatically
		226	returned.
		227
		228	Lock names should begin with a unique identifier (for example, cf::map::find
		229	uses map_find and cf::map::load uses map_load).
		230
		231	=cut
		232
		233	our %LOCK;
		234
		235	sub lock_wait($) {
		236	my ($key) = @_;
		237
		238	# wait for lock, if any
		239	while ($LOCK{$key}) {
		240	push @{ $LOCK{$key} }, $Coro::current;
		241	Coro::schedule;
		242	}
		243	}
		244
		245	sub lock_acquire($) {
		246	my ($key) = @_;
		247
		248	# wait, to be sure we are not locked
		249	lock_wait $key;
		250
		251	$LOCK{$key} = [];
		252
		253	Coro::guard {
		254	# wake up all waiters, to be on the safe side
		255	$_->ready for @{ delete $LOCK{$key} };
		256	}
		257	}
		258
		259	sub freeze_mainloop {
		260	return unless $TICK_WATCHER->is_active;
		261
		262	my $guard = Coro::guard { $TICK_WATCHER->start };
		263	$TICK_WATCHER->stop;
		264	$guard
		265	}
		266
		267	=item cf::async { BLOCK }
		268
		269	Currently the same as Coro::async_pool, meaning you cannot use
		270	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		271	thing you are allowed to do is call C<prio> on it.
		272
		273	=cut
		274
		275	BEGIN { *async = \&Coro::async_pool }
178		276
179	=item cf::sync_job { BLOCK }	277	=item cf::sync_job { BLOCK }
180		278
181	The design of crossfire+ requires that the main coro ($Coro::main) is	279	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	280	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	288	=cut
191		289
192	sub sync_job(&) {	290	sub sync_job(&) {
193	my ($job) = @_;	291	my ($job) = @_;
194		292
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($Coro::current == $Coro::main) {	293	if ($Coro::current == $Coro::main) {
		294	# this is the main coro, too bad, we have to block
		295	# till the operation succeeds, freezing the server :/
		296
		297	# TODO: use suspend/resume instead
		298	# (but this is cancel-safe)
		299	my $freeze_guard = freeze_mainloop;
		300
		301	my $busy = 1;
		302	my @res;
		303
		304	(async {
		305	@res = eval { $job->() };
		306	warn $@ if $@;
		307	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	308	})->prio (Coro::PRIO_MAX);
		309
209	while ($busy) {	310	while ($busy) {
210	Coro::cede_notself;	311	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	312	}
		313
		314	wantarray ? @res : $res[0]
213	} else {	315	} else {
214	$coro->join;	316	# we are in another coroutine, how wonderful, everything just works
		317
		318	$job->()
215	}	319	}
216
217	wantarray ? @res : $res[0]
218	}	320	}
219		321
220	=item $coro = cf::coro { BLOCK }	322	=item $coro = cf::async_ext { BLOCK }
221		323
222	Creates and returns a new coro. This coro is automcatially being canceled	324	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	325	extension calling this is being unloaded.
224		326
225	=cut	327	=cut
226		328
227	sub coro(&) {	329	sub async_ext(&) {
228	my $cb = shift;	330	my $cb = shift;
229		331
230	my $coro; $coro = async {	332	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		333
237	$coro->on_destroy (sub {	334	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	335	delete $EXT_CORO{$coro+0};
239	});	336	});
240	$EXT_CORO{$coro+0} = $coro;	337	$EXT_CORO{$coro+0} = $coro;
241		338
242	$coro	339	$coro
		340	}
		341
		342	sub write_runtime {
		343	return unless $TICK_WATCHER->is_active;
		344
		345	my $runtime = cf::localdir . "/runtime";
		346
		347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		348	or return;
		349
		350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		351	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		352	and return;
		353
		354	aio_fsync $fh
		355	and return;
		356
		357	close $fh
		358	or return;
		359
		360	aio_rename "$runtime~", $runtime
		361	and return;
		362
		363	1
243	}	364	}
244		365
245	=back	366	=back
246		367
247	=cut	368	=cut
…		…
660	or return;	781	or return;
661		782
662	unless (aio_stat "$filename.pst") {	783	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	784	(aio_load "$filename.pst", $av) >= 0
664	or return;	785	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	786	$av = eval { (Storable::thaw $av)->{objs} };
666	}	787	}
667		788
		789	warn sprintf "loading %s (%d)\n",
		790	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	791	return ($data, $av);
669	}	792	}
670		793
671	#############################################################################	794	#############################################################################
672	# command handling &c	795	# command handling &c
…		…
697	=cut	820	=cut
698		821
699	sub register_extcmd {	822	sub register_extcmd {
700	my ($name, $cb) = @_;	823	my ($name, $cb) = @_;
701		824
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	825	$EXTCMD{$name} = $cb;
706	}	826	}
707		827
708	cf::player->attach (	828	cf::player->attach (
709	on_command => sub {	829	on_command => sub {
710	my ($pl, $name, $params) = @_;	830	my ($pl, $name, $params) = @_;
…		…
723		843
724	my $msg = eval { from_json $buf };	844	my $msg = eval { from_json $buf };
725		845
726	if (ref $msg) {	846	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	848	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	849	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	850	}
731	}	851	}
732	} else {	852	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		855
736	cf::override;	856	cf::override;
737	},	857	},
738	);	858	);
739		859
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	860	sub load_extension {
747	my ($path) = @_;	861	my ($path) = @_;
748		862
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	864	my $base = $1;
751	my $pkg = $1;	865	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	866	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	867	$pkg = "ext::$pkg";
754		868
755	warn "loading '$path' into '$pkg'\n";	869	warn "... loading '$path' into '$pkg'\n";
756		870
757	open my $fh, "<:utf8", $path	871	open my $fh, "<:utf8", $path
758	or die "$path: $!";	872	or die "$path: $!";
759		873
760	my $source =	874	my $source =
761	"package $pkg; use strict; use utf8;\n"	875	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"	876	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })	877	. (do { local $/; <$fh> })
764	. "\n};\n1";	878	. "\n};\n1";
765		879
766	eval $source	880	unless (eval $source) {
767	or die $@ ? "$path: $@\n"	881	my $msg = $@ ? "$path: $@\n"
768	: "extension disabled.\n";	882	: "extension disabled.\n";
769		883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
770	push @exts, $pkg;	884	warn $@;
771	$ext_pkg{$base} = $pkg;	885	warn "mandatory extension failed to load, exiting.\n";
772		886	exit 1;
773	# no strict 'refs';	887	}
774	# @{"$pkg\::ISA"} = ext::;	888	die $@;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	889	}
789		890
790	# remove commands	891	push @EXTS, $pkg;
791	for my $name (keys %COMMAND) {
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
793
794	if (@cb) {
795	$COMMAND{$name} = \@cb;
796	} else {
797	delete $COMMAND{$name};
798	}
799	}
800
801	# remove extcmds
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
803	delete $EXTCMD{$name};
804	}
805
806	if (my $cb = $pkg->can ("unload")) {
807	eval {
808	$cb->($pkg);
809	1
810	} or warn "$pkg unloaded, but with errors: $@";
811	}
812
813	Symbol::delete_package $pkg;
814	}	892	}
815		893
816	sub load_extensions {	894	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	895	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	896	next unless -r $ext;
…		…
822	} or warn "$ext not loaded: $@";	900	} or warn "$ext not loaded: $@";
823	}	901	}
824	}	902	}
825		903
826	#############################################################################	904	#############################################################################
827	# load/save/clean perl data associated with a map
828		905
829	*cf::mapsupport::on_clean = sub {	906	=head2 CORE EXTENSIONS
		907
		908	Functions and methods that extend core crossfire objects.
		909
		910	=cut
		911
		912	package cf::player;
		913
		914	use Coro::AIO;
		915
		916	=head3 cf::player
		917
		918	=over 4
		919
		920	=item cf::player::find $login
		921
		922	Returns the given player object, loading it if necessary (might block).
		923
		924	=cut
		925
		926	sub playerdir($) {
		927	cf::localdir
		928	. "/"
		929	. cf::playerdir
		930	. "/"
		931	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		932	}
		933
		934	sub path($) {
		935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		936
		937	(playerdir $login) . "/$login.pl"
		938	}
		939
		940	sub find_active($) {
		941	$cf::PLAYER{$_[0]}
		942	and $cf::PLAYER{$_[0]}->active
		943	and $cf::PLAYER{$_[0]}
		944	}
		945
		946	sub exists($) {
		947	my ($login) = @_;
		948
		949	$cf::PLAYER{$login}
		950	or cf::sync_job { !aio_stat $login }
		951	}
		952
		953	sub find($) {
		954	return $cf::PLAYER{$_[0]} || do {
		955	my $login = $_[0];
		956
		957	my $guard = cf::lock_acquire "user_find:$login";
		958
		959	$cf::PLAYER{$_[0]} || do {
		960	my $pl = load_pl path $login
		961	or return;
		962	$cf::PLAYER{$login} = $pl
		963	}
		964	}
		965	}
		966
		967	sub save($) {
		968	my ($pl) = @_;
		969
		970	return if $pl->{deny_save};
		971
		972	my $path = path $pl;
		973	my $guard = cf::lock_acquire "user_save:$path";
		974
		975	return if $pl->{deny_save};
		976
		977	aio_mkdir playerdir $pl, 0770;
		978	$pl->{last_save} = $cf::RUNTIME;
		979
		980	$pl->save_pl ($path);
		981	Coro::cede;
		982	}
		983
		984	sub new($) {
		985	my ($login) = @_;
		986
		987	my $self = create;
		988
		989	$self->ob->name ($login);
		990	$self->{deny_save} = 1;
		991
		992	$cf::PLAYER{$login} = $self;
		993
		994	$self
		995	}
		996
		997	=item $pl->quit_character
		998
		999	Nukes the player without looking back. If logged in, the connection will
		1000	be destroyed. May block for a long time.
		1001
		1002	=cut
		1003
		1004	sub quit_character {
		1005	my ($pl) = @_;
		1006
		1007	$pl->{deny_save} = 1;
		1008	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1009
		1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1011	$pl->deactivate;
		1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1013	$pl->ns->destroy if $pl->ns;
		1014
		1015	my $path = playerdir $pl;
		1016	my $temp = "$path~$cf::RUNTIME~deleting~";
		1017	aio_rename $path, $temp;
		1018	delete $cf::PLAYER{$pl->ob->name};
		1019	$pl->destroy;
		1020	IO::AIO::aio_rmtree $temp;
		1021	}
		1022
		1023	=item cf::player::list_logins
		1024
		1025	Returns am arrayref of all valid playernames in the system, can take a
		1026	while and may block, so not sync_job-capable, ever.
		1027
		1028	=cut
		1029
		1030	sub list_logins {
		1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1032	or return [];
		1033
		1034	my @logins;
		1035
		1036	for my $login (@$dirs) {
		1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1038	aio_read $fh, 0, 512, my $buf, 0 or next;
		1039	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1040
		1041	utf8::decode $login;
		1042	push @logins, $login;
		1043	}
		1044
		1045	\@logins
		1046	}
		1047
		1048	=item $player->maps
		1049
		1050	Returns an arrayref of map paths that are private for this
		1051	player. May block.
		1052
		1053	=cut
		1054
		1055	sub maps($) {
		1056	my ($pl) = @_;
		1057
		1058	my $files = aio_readdir playerdir $pl
		1059	or return;
		1060
		1061	my @paths;
		1062
		1063	for (@$files) {
		1064	utf8::decode $_;
		1065	next if /\.(?:pl|pst)$/;
		1066	next unless /^$PATH_SEP/o;
		1067
		1068	s/\.map$//;
		1069	push @paths, "~" . $pl->ob->name . "/" . $_;
		1070	}
		1071
		1072	\@paths
		1073	}
		1074
		1075	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1076
		1077	Sends an ext reply to the player.
		1078
		1079	=cut
		1080
		1081	sub ext_reply($$$%) {
		1082	my ($self, $id, %msg) = @_;
		1083
		1084	$msg{msgid} = $id;
		1085
		1086	$self->send ("ext " . cf::to_json \%msg);
		1087	}
		1088
		1089	package cf;
		1090
		1091	=back
		1092
		1093
		1094	=head3 cf::map
		1095
		1096	=over 4
		1097
		1098	=cut
		1099
		1100	package cf::map;
		1101
		1102	use Fcntl;
		1103	use Coro::AIO;
		1104
		1105	use overload
		1106	'""' => \&as_string;
		1107
		1108	our $MAX_RESET = 3600;
		1109	our $DEFAULT_RESET = 3000;
		1110
		1111	sub generate_random_map {
		1112	my ($self, $rmp) = @_;
		1113
		1114	# mit "rum" bekleckern, nicht
		1115	$self->_create_random_map (
		1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1119	$rmp->{exit_on_final_map},
		1120	$rmp->{xsize}, $rmp->{ysize},
		1121	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1122	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1123	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1124	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1126	(cf::region::find $rmp->{region}), $rmp->{custom}
		1127	)
		1128	}
		1129
		1130	sub register {
		1131	my (undef, $regex) = @_;
		1132	my $pkg = caller;
		1133
		1134	no strict;
		1135	push @{"$pkg\::ISA"}, __PACKAGE__;
		1136
		1137	$EXT_MAP{$pkg} = qr<$regex>;
		1138	}
		1139
		1140	# also paths starting with '/'
		1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1142
		1143	sub normalise {
		1144	my ($path, $base) = @_;
		1145
		1146	# map plan:
		1147	#
		1148	# /! non-realised random map exit (special hack!)
		1149	# {... are special paths that are not being touched
		1150	# ?xxx/... are special absolute paths
		1151	# ?random/... random maps
		1152	# /... normal maps
		1153	# ~user/... per-player map of a specific user
		1154
		1155	$path =~ s/$PATH_SEP/\//go;
		1156
		1157	# treat it as relative path if it starts with
		1158	# something that looks reasonable
		1159	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1160	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1161
		1162	$base =~ s{[^/]+/?$}{};
		1163	$path = "$base/$path";
		1164	}
		1165
		1166	for ($path) {
		1167	redo if s{//}{/};
		1168	redo if s{/\.?/}{/};
		1169	redo if s{/[^/]+/\.\./}{/};
		1170	}
		1171
		1172	$path
		1173	}
		1174
		1175	sub new_from_path {
		1176	my (undef, $path, $base) = @_;
		1177
		1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1179
		1180	$path = normalise $path, $base;
		1181
		1182	for my $pkg (keys %EXT_MAP) {
		1183	if ($path =~ $EXT_MAP{$pkg}) {
		1184	my $self = bless cf::map::new, $pkg;
		1185	$self->{path} = $path; $self->path ($path);
		1186	$self->init; # pass $1 etc.
		1187	return $self;
		1188	}
		1189	}
		1190
		1191	Carp::carp "unable to resolve path '$path'.";
		1192	()
		1193	}
		1194
		1195	sub init {
		1196	my ($self) = @_;
		1197
		1198	$self
		1199	}
		1200
		1201	sub as_string {
		1202	my ($self) = @_;
		1203
		1204	"$self->{path}"
		1205	}
		1206
		1207	# the displayed name, this is a one way mapping
		1208	sub visible_name {
		1209	&as_string
		1210	}
		1211
		1212	# the original (read-only) location
		1213	sub load_path {
		1214	my ($self) = @_;
		1215
		1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1217	}
		1218
		1219	# the temporary/swap location
		1220	sub save_path {
		1221	my ($self) = @_;
		1222
		1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1225	}
		1226
		1227	# the unique path, undef == no special unique path
		1228	sub uniq_path {
		1229	my ($self) = @_;
		1230
		1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1233	}
		1234
		1235	# and all this just because we cannot iterate over
		1236	# all maps in C++...
		1237	sub change_all_map_light {
		1238	my ($change) = @_;
		1239
		1240	$_->change_map_light ($change)
		1241	for grep $_->outdoor, values %cf::MAP;
		1242	}
		1243
		1244	sub unlink_save {
		1245	my ($self) = @_;
		1246
		1247	utf8::encode (my $save = $self->save_path);
		1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
		1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
		1250	}
		1251
		1252	sub load_header_from($) {
		1253	my ($self, $path) = @_;
		1254
		1255	utf8::encode $path;
		1256	aio_open $path, O_RDONLY, 0
		1257	or return;
		1258
		1259	$self->_load_header ($path)
		1260	or return;
		1261
		1262	$self->{load_path} = $path;
		1263
		1264	1
		1265	}
		1266
		1267	sub load_orig {
		1268	my ($self) = @_;
		1269
		1270	$self->load_header_from ($self->load_path)
		1271	}
		1272
		1273	sub load_temp {
		1274	my ($self) = @_;
		1275
		1276	$self->load_header_from ($self->save_path)
		1277	}
		1278
		1279	sub load_header {
		1280	my ($self) = @_;
		1281
		1282	if ($self->load_temp) {
		1283	$self->last_access ((delete $self->{last_access})
		1284	|| $cf::RUNTIME); #d#
		1285	# safety
		1286	$self->{instantiate_time} = $cf::RUNTIME
		1287	if $self->{instantiate_time} > $cf::RUNTIME;
		1288	} else {
		1289	$self->load_orig
		1290	or return;
		1291
		1292	$self->{load_original} = 1;
		1293	$self->{instantiate_time} = $cf::RUNTIME;
		1294	$self->last_access ($cf::RUNTIME);
		1295	$self->instantiate;
		1296	}
		1297
		1298	1
		1299	}
		1300
		1301	sub find;
		1302	sub find {
		1303	my ($path, $origin) = @_;
		1304
		1305	$path = normalise $path, $origin && $origin->path;
		1306
		1307	cf::lock_wait "map_find:$path";
		1308
		1309	$cf::MAP{$path} || do {
		1310	my $guard = cf::lock_acquire "map_find:$path";
		1311	my $map = new_from_path cf::map $path
		1312	or return;
		1313
		1314	$map->{last_save} = $cf::RUNTIME;
		1315
		1316	$map->load_header
		1317	or return;
		1318
		1319	if ($map->should_reset) {
		1320	$map->reset;
		1321	undef $guard;
		1322	$map = find $path
		1323	or return;
		1324	}
		1325
		1326	$cf::MAP{$path} = $map
		1327	}
		1328	}
		1329
		1330	sub load {
		1331	my ($self) = @_;
		1332
		1333	my $path = $self->{path};
		1334	my $guard = cf::lock_acquire "map_load:$path";
		1335
		1336	return if $self->in_memory != cf::MAP_SWAPPED;
		1337
		1338	$self->in_memory (cf::MAP_LOADING);
		1339
		1340	$self->alloc;
		1341	$self->_load_objects ($self->{load_path}, 1)
		1342	or return;
		1343
		1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1345	if delete $self->{load_original};
		1346
		1347	if (my $uniq = $self->uniq_path) {
		1348	utf8::encode $uniq;
		1349	if (aio_open $uniq, O_RDONLY, 0) {
		1350	$self->clear_unique_items;
		1351	$self->_load_objects ($uniq, 0);
		1352	}
		1353	}
		1354
		1355	Coro::cede;
		1356
		1357	# now do the right thing for maps
		1358	$self->link_multipart_objects;
		1359
		1360	unless ($self->{deny_activate}) {
		1361	$self->decay_objects;
		1362	$self->fix_auto_apply;
		1363	$self->update_buttons;
		1364	Coro::cede;
		1365	$self->set_darkness_map;
		1366	$self->difficulty ($self->estimate_difficulty)
		1367	unless $self->difficulty;
		1368	Coro::cede;
		1369	$self->activate;
		1370	}
		1371
		1372	$self->in_memory (cf::MAP_IN_MEMORY);
		1373	}
		1374
		1375	sub customise_for {
		1376	my ($self, $ob) = @_;
		1377
		1378	return find "~" . $ob->name . "/" . $self->{path}
		1379	if $self->per_player;
		1380
		1381	$self
		1382	}
		1383
		1384	# find and load all maps in the 3x3 area around a map
		1385	sub load_diag {
830	my ($map) = @_;	1386	my ($map) = @_;
831		1387
832	my $path = $map->tmpname;	1388	my @diag; # diagonal neighbours
833	defined $path or return;
834		1389
835	unlink "$path.pst";	1390	for (0 .. 3) {
		1391	my $neigh = $map->tile_path ($_)
		1392	or next;
		1393	$neigh = find $neigh, $map
		1394	or next;
		1395	$neigh->load;
		1396
		1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1399	}
		1400
		1401	for (@diag) {
		1402	my $neigh = find @$_
		1403	or next;
		1404	$neigh->load;
		1405	}
		1406	}
		1407
		1408	sub find_sync {
		1409	my ($path, $origin) = @_;
		1410
		1411	cf::sync_job { find $path, $origin }
		1412	}
		1413
		1414	sub do_load_sync {
		1415	my ($map) = @_;
		1416
		1417	cf::sync_job { $map->load };
		1418	}
		1419
		1420	our %MAP_PREFETCH;
		1421	our $MAP_PREFETCHER = Coro::async {
		1422	while () {
		1423	for my $path (keys %MAP_PREFETCH) {
		1424	my $map = find $path
		1425	or next;
		1426	$map->load;
		1427
		1428	delete $MAP_PREFETCH{$path};
		1429	}
		1430	Coro::schedule;
		1431	}
836	};	1432	};
837		1433
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1434	sub find_async {
		1435	my ($path, $origin) = @_;
839		1436
840	#############################################################################	1437	$path = normalise $path, $origin && $origin->{path};
841	# load/save perl data associated with player->ob objects
842		1438
843	sub all_objects(@) {	1439	if (my $map = $cf::MAP{$path}) {
844	@_, map all_objects ($_->inv), @_	1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
845	}
846
847	# TODO: compatibility cruft, remove when no longer needed
848	cf::player->attach (
849	on_load => sub {
850	my ($pl, $path) = @_;
851
852	for my $o (all_objects $pl->ob) {
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
854	$o->set_ob_key_value ("_perl_data");
855
856	%$o = %{ Storable::thaw pack "H*", $value };
857	}
858	}
859	},	1441	}
860	);
861		1442
862	#############################################################################	1443	$MAP_PREFETCH{$path} = 0;
		1444	$MAP_PREFETCHER->ready;
863		1445
864	=head2 CORE EXTENSIONS	1446	()
		1447	}
865		1448
866	Functions and methods that extend core crossfire objects.	1449	sub save {
		1450	my ($self) = @_;
867		1451
868	=head3 cf::player	1452	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1453
		1454	$self->{last_save} = $cf::RUNTIME;
		1455
		1456	return unless $self->dirty;
		1457
		1458	my $save = $self->save_path; utf8::encode $save;
		1459	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1460
		1461	$self->{load_path} = $save;
		1462
		1463	return if $self->{deny_save};
		1464
		1465	local $self->{last_access} = $self->last_access;#d#
		1466
		1467	cf::async {
		1468	$_->contr->save for $self->players;
		1469	};
		1470
		1471	if ($uniq) {
		1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1474	} else {
		1475	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1476	}
		1477	}
		1478
		1479	sub swap_out {
		1480	my ($self) = @_;
		1481
		1482	# save first because save cedes
		1483	$self->save;
		1484
		1485	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1486
		1487	return if $self->players;
		1488	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1489	return if $self->{deny_save};
		1490
		1491	$self->clear;
		1492	$self->in_memory (cf::MAP_SWAPPED);
		1493	}
		1494
		1495	sub reset_at {
		1496	my ($self) = @_;
		1497
		1498	# TODO: safety, remove and allow resettable per-player maps
		1499	return 1e99 if $self->isa ("ext::map_per_player");
		1500	return 1e99 if $self->{deny_reset};
		1501
		1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1504
		1505	$time + $to
		1506	}
		1507
		1508	sub should_reset {
		1509	my ($self) = @_;
		1510
		1511	$self->reset_at <= $cf::RUNTIME
		1512	}
		1513
		1514	sub rename {
		1515	my ($self, $new_path) = @_;
		1516
		1517	normalise $new_path;
		1518
		1519	$self->unlink_save;
		1520
		1521	delete $cf::MAP{$self->path};
		1522	$self->{path} = $new_path; $self->path ($self->{path});
		1523	$cf::MAP{$self->path} = $self;
		1524
		1525	$self->save;
		1526	}
		1527
		1528	sub reset {
		1529	my ($self) = @_;
		1530
		1531	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1532
		1533	return if $self->players;
		1534	return if $self->isa ("ext::map_per_player");#d#
		1535
		1536	warn "resetting map ", $self->path;#d#
		1537
		1538	delete $cf::MAP{$self->path};
		1539
		1540	$self->in_memory (cf::MAP_SWAPPED);
		1541	$self->clear;
		1542
		1543	$_->clear_links_to ($self) for values %cf::MAP;
		1544
		1545	$self->unlink_save;
		1546	$self->destroy;
		1547	}
		1548
		1549	my $nuke_counter = "aaaa";
		1550
		1551	sub nuke {
		1552	my ($self) = @_;
		1553
		1554	$self->{deny_save} = 1;
		1555	$self->reset_timeout (1);
		1556	$self->rename ("{nuke}/" . ($nuke_counter++));
		1557	$self->reset; # polite request, might not happen
		1558	}
		1559
		1560	=item cf::map::unique_maps
		1561
		1562	Returns an arrayref of paths of all shared maps that have
		1563	instantiated unique items. May block.
		1564
		1565	=cut
		1566
		1567	sub unique_maps() {
		1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1569	or return;
		1570
		1571	my @paths;
		1572
		1573	for (@$files) {
		1574	utf8::decode $_;
		1575	next if /\.pst$/;
		1576	next unless /^$PATH_SEP/o;
		1577
		1578	s/\.map$//;
		1579	push @paths, $_;
		1580	}
		1581
		1582	\@paths
		1583	}
		1584
		1585	package cf;
		1586
		1587	=back
		1588
		1589	=head3 cf::object
		1590
		1591	=cut
		1592
		1593	package cf::object;
869		1594
870	=over 4	1595	=over 4
871		1596
872	=item cf::player::exists $login	1597	=item $ob->inv_recursive
873		1598
874	Returns true when the given account exists.	1599	Returns the inventory of the object _and_ their inventories, recursively.
875		1600
876	=cut	1601	=cut
877		1602
878	sub cf::player::exists($) {	1603	sub inv_recursive_;
879	cf::player::find $_[0]	1604	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1605	map { $_, inv_recursive_ $_->inv } @_
881	}	1606	}
882		1607
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1608	sub inv_recursive {
884		1609	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	1610	}
		1611
		1612	package cf;
896		1613
897	=back	1614	=back
898		1615
899	=head3 cf::object::player	1616	=head3 cf::object::player
900		1617
…		…
938	(ref $cf::CFG{"may_$access"}	1655	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1656	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1657	: $cf::CFG{"may_$access"})
941	}	1658	}
942		1659
		1660	=item $player_object->enter_link
		1661
		1662	Freezes the player and moves him/her to a special map (C<{link}>).
		1663
		1664	The player should be reasonably safe there for short amounts of time. You
		1665	I<MUST> call C<leave_link> as soon as possible, though.
		1666
		1667	Will never block.
		1668
		1669	=item $player_object->leave_link ($map, $x, $y)
		1670
		1671	Moves the player out of the special C<{link}> map onto the specified
		1672	map. If the map is not valid (or omitted), the player will be moved back
		1673	to the location he/she was before the call to C<enter_link>, or, if that
		1674	fails, to the emergency map position.
		1675
		1676	Might block.
		1677
		1678	=cut
		1679
		1680	sub link_map {
		1681	unless ($LINK_MAP) {
		1682	$LINK_MAP = cf::map::find "{link}"
		1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1684	$LINK_MAP->load;
		1685	}
		1686
		1687	$LINK_MAP
		1688	}
		1689
		1690	sub cf::object::player::enter_link {
		1691	my ($self) = @_;
		1692
		1693	$self->deactivate_recursive;
		1694
		1695	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1696
		1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1698	if $self->map;
		1699
		1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1701	}
		1702
		1703	sub cf::object::player::leave_link {
		1704	my ($self, $map, $x, $y) = @_;
		1705
		1706	my $link_pos = delete $self->{_link_pos};
		1707
		1708	unless ($map) {
		1709	# restore original map position
		1710	($map, $x, $y) = @{ $link_pos || [] };
		1711	$map = cf::map::find $map;
		1712
		1713	unless ($map) {
		1714	($map, $x, $y) = @$EMERGENCY_POSITION;
		1715	$map = cf::map::find $map
		1716	or die "FATAL: cannot load emergency map\n";
		1717	}
		1718	}
		1719
		1720	($x, $y) = (-1, -1)
		1721	unless (defined $x) && (defined $y);
		1722
		1723	# use -1 or undef as default coordinates, not 0, 0
		1724	($x, $y) = ($map->enter_x, $map->enter_y)
		1725	if $x <=0 && $y <= 0;
		1726
		1727	$map->load;
		1728	$map->load_diag;
		1729
		1730	return unless $self->contr->active;
		1731	$self->activate_recursive;
		1732	$self->enter_map ($map, $x, $y);
		1733	}
		1734
		1735	cf::player->attach (
		1736	on_logout => sub {
		1737	my ($pl) = @_;
		1738
		1739	# abort map switching before logout
		1740	if ($pl->ob->{_link_pos}) {
		1741	cf::sync_job {
		1742	$pl->ob->leave_link
		1743	};
		1744	}
		1745	},
		1746	on_login => sub {
		1747	my ($pl) = @_;
		1748
		1749	# try to abort aborted map switching on player login :)
		1750	# should happen only on crashes
		1751	if ($pl->ob->{_link_pos}) {
		1752	$pl->ob->enter_link;
		1753	(async {
		1754	# we need this sleep as the login has a concurrent enter_exit running
		1755	# and this sleep increases chances of the player not ending up in scorn
		1756	$pl->ob->reply (undef,
		1757	"There was an internal problem at your last logout, "
		1758	. "the server will try to bring you to your intended destination in a second.",
		1759	cf::NDI_RED);
		1760	Coro::Timer::sleep 1;
		1761	$pl->ob->leave_link;
		1762	})->prio (2);
		1763	}
		1764	},
		1765	);
		1766
		1767	=item $player_object->goto ($path, $x, $y)
		1768
		1769	=cut
		1770
		1771	sub cf::object::player::goto {
		1772	my ($self, $path, $x, $y) = @_;
		1773
		1774	$self->enter_link;
		1775
		1776	(async {
		1777	my $map = cf::map::find $path;
		1778	$map = $map->customise_for ($self) if $map;
		1779
		1780	# warn "entering ", $map->path, " at ($x, $y)\n"
		1781	# if $map;
		1782
		1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1784
		1785	$self->leave_link ($map, $x, $y);
		1786	})->prio (1);
		1787	}
		1788
		1789	=item $player_object->enter_exit ($exit_object)
		1790
		1791	=cut
		1792
		1793	sub parse_random_map_params {
		1794	my ($spec) = @_;
		1795
		1796	my $rmp = { # defaults
		1797	xsize => 10,
		1798	ysize => 10,
		1799	};
		1800
		1801	for (split /\n/, $spec) {
		1802	my ($k, $v) = split /\s+/, $_, 2;
		1803
		1804	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1805	}
		1806
		1807	$rmp
		1808	}
		1809
		1810	sub prepare_random_map {
		1811	my ($exit) = @_;
		1812
		1813	# all this does is basically replace the /! path by
		1814	# a new random map path (?random/...) with a seed
		1815	# that depends on the exit object
		1816
		1817	my $rmp = parse_random_map_params $exit->msg;
		1818
		1819	if ($exit->map) {
		1820	$rmp->{region} = $exit->map->region_name;
		1821	$rmp->{origin_map} = $exit->map->path;
		1822	$rmp->{origin_x} = $exit->x;
		1823	$rmp->{origin_y} = $exit->y;
		1824	}
		1825
		1826	$rmp->{random_seed} ||= $exit->random_seed;
		1827
		1828	my $data = cf::to_json $rmp;
		1829	my $md5 = Digest::MD5::md5_hex $data;
		1830
		1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1832	aio_write $fh, 0, (length $data), $data, 0;
		1833
		1834	$exit->slaying ("?random/$md5");
		1835	$exit->msg (undef);
		1836	}
		1837	}
		1838
		1839	sub cf::object::player::enter_exit {
		1840	my ($self, $exit) = @_;
		1841
		1842	return unless $self->type == cf::PLAYER;
		1843
		1844	$self->enter_link;
		1845
		1846	(async {
		1847	$self->deactivate_recursive; # just to be sure
		1848	unless (eval {
		1849	prepare_random_map $exit
		1850	if $exit->slaying eq "/!";
		1851
		1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1854
		1855	1;
		1856	}) {
		1857	$self->message ("Something went wrong deep within the crossfire server. "
		1858	. "I'll try to bring you back to the map you were before. "
		1859	. "Please report this to the dungeon master!",
		1860	cf::NDI_UNIQUE | cf::NDI_RED);
		1861
		1862	warn "ERROR in enter_exit: $@";
		1863	$self->leave_link;
		1864	}
		1865	})->prio (1);
		1866	}
		1867
943	=head3 cf::client	1868	=head3 cf::client
944		1869
945	=over 4	1870	=over 4
946		1871
947	=item $client->send_drawinfo ($text, $flags)	1872	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1915	on_reply => sub {
991	my ($ns, $msg) = @_;	1916	my ($ns, $msg) = @_;
992		1917
993	# this weird shuffling is so that direct followup queries	1918	# this weird shuffling is so that direct followup queries
994	# get handled first	1919	# get handled first
995	my $queue = delete $ns->{query_queue};	1920	my $queue = delete $ns->{query_queue}
		1921	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1922
997	(shift @$queue)->[1]->($msg);	1923	(shift @$queue)->[1]->($msg);
998		1924
999	push @{ $ns->{query_queue} }, @$queue;	1925	push @{ $ns->{query_queue} }, @$queue;
1000		1926
…		…
1006	}	1932	}
1007	}	1933	}
1008	},	1934	},
1009	);	1935	);
1010		1936
1011	=item $client->coro (\&cb)	1937	=item $client->async (\&cb)
1012		1938
1013	Create a new coroutine, running the specified callback. The coroutine will	1939	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	1940	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	1941	or loss of connection).
1016		1942
1017	=cut	1943	=cut
1018		1944
1019	sub cf::client::coro {	1945	sub cf::client::async {
1020	my ($self, $cb) = @_;	1946	my ($self, $cb) = @_;
1021		1947
1022	my $coro; $coro = async {	1948	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1949
1029	$coro->on_destroy (sub {	1950	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1951	delete $self->{_coro}{$coro+0};
1031	});	1952	});
1032		1953
…		…
1204		2125
1205	{	2126	{
1206	my $path = cf::localdir . "/database.pst";	2127	my $path = cf::localdir . "/database.pst";
1207		2128
1208	sub db_load() {	2129	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	2130	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2131	}
1212		2132
1213	my $pid;	2133	my $pid;
1214		2134
1215	sub db_save() {	2135	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	2136	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	2137	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	2138	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	2139	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	2140	rename "$path~", $path;
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2188	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2189	or return;
1271		2190
1272	local $/;	2191	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2192	*CFG = YAML::Syck::Load <$fh>;
		2193
		2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2195
		2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2198
		2199	if (exists $CFG{mlockall}) {
		2200	eval {
		2201	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2202	and die "WARNING: m(un)lockall failed: $!\n";
		2203	};
		2204	warn $@ if $@;
		2205	}
1274	}	2206	}
1275		2207
1276	sub main {	2208	sub main {
		2209	# we must not ever block the main coroutine
		2210	local $Coro::idle = sub {
		2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2212	async { Event::one_event };
		2213	};
		2214
1277	cfg_load;	2215	cfg_load;
1278	db_load;	2216	db_load;
1279	load_extensions;	2217	load_extensions;
1280	Event::loop;	2218	Event::loop;
1281	}	2219	}
1282		2220
1283	#############################################################################	2221	#############################################################################
1284	# initialisation	2222	# initialisation and cleanup
1285		2223
		2224	# install some emergency cleanup handlers
		2225	BEGIN {
		2226	for my $signal (qw(INT HUP TERM)) {
		2227	Event->signal (
		2228	data => WF_AUTOCANCEL,
		2229	signal => $signal,
		2230	cb => sub {
		2231	cf::cleanup "SIG$signal";
		2232	},
		2233	);
		2234	}
		2235	}
		2236
		2237	sub emergency_save() {
		2238	my $freeze_guard = cf::freeze_mainloop;
		2239
		2240	warn "enter emergency perl save\n";
		2241
		2242	cf::sync_job {
		2243	# use a peculiar iteration method to avoid tripping on perl
		2244	# refcount bugs in for. also avoids problems with players
		2245	# and maps saved/destroyed asynchronously.
		2246	warn "begin emergency player save\n";
		2247	for my $login (keys %cf::PLAYER) {
		2248	my $pl = $cf::PLAYER{$login} or next;
		2249	$pl->valid or next;
		2250	$pl->save;
		2251	}
		2252	warn "end emergency player save\n";
		2253
		2254	warn "begin emergency map save\n";
		2255	for my $path (keys %cf::MAP) {
		2256	my $map = $cf::MAP{$path} or next;
		2257	$map->valid or next;
		2258	$map->save;
		2259	}
		2260	warn "end emergency map save\n";
		2261	};
		2262
		2263	warn "leave emergency perl save\n";
		2264	}
		2265
1286	sub _perl_reload() {	2266	sub reload() {
1287	# can/must only be called in main	2267	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2268	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2269	warn "can only reload from main coroutine\n";
1290	return;	2270	return;
1291	}	2271	}
1292		2272
1293	warn "reloading...";	2273	warn "reloading...";
1294		2274
1295	local $FREEZE = 1;	2275	warn "freezing server";
		2276	my $guard = freeze_mainloop;
1296	cf::emergency_save;	2277	cf::emergency_save;
		2278
		2279	warn "sync database to disk";
		2280	cf::db_sync;
		2281	IO::AIO::flush;
1297		2282
1298	eval {	2283	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2284	# if anything goes wrong in here, we should simply crash as we already saved
1300		2285
1301	# cancel all watchers	2286	warn "cancel all watchers";
1302	for (Event::all_watchers) {	2287	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2288	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2289	}
1305		2290
1306	# cancel all extension coros	2291	warn "cancel all extension coros";
1307	$_->cancel for values %EXT_CORO;	2292	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2293	%EXT_CORO = ();
1309		2294
		2295	warn "remove commands";
		2296	%COMMAND = ();
		2297
		2298	warn "remove ext commands";
		2299	%EXTCMD = ();
		2300
1310	# unload all extensions	2301	warn "unload/nuke all extensions";
1311	for (@exts) {	2302	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2303	warn "... unloading $pkg";
1313	unload_extension $_;	2304
		2305	if (my $cb = $pkg->can ("unload")) {
		2306	eval {
		2307	$cb->($pkg);
		2308	1
		2309	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2310	}
1315		2311
		2312	warn "... nuking $pkg";
		2313	Symbol::delete_package $pkg;
		2314	}
		2315
1316	# unload all modules loaded from $LIBDIR	2316	warn "unload all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2317	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2319
1320	warn "removing <$k>";	2320	warn "removing <$k>";
1321	delete $INC{$k};	2321	delete $INC{$k};
…		…
1328	}	2328	}
1329		2329
1330	Symbol::delete_package $k;	2330	Symbol::delete_package $k;
1331	}	2331	}
1332		2332
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2333	warn "get rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2334	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2336
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2337	warn "unload cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2338	delete $INC{"cf.pm"};
1346		2339
1347	# don't, removes xs symbols, too,	2340	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2341	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2342	#Symbol::delete_package __PACKAGE__;
1350		2343
1351	# reload cf.pm
1352	warn "reloading cf.pm";	2344	warn "reloading cf.pm";
1353	require cf;	2345	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2347
1356	# load config and database again	2348	warn "load config and database again";
1357	cf::cfg_load;	2349	cf::cfg_load;
1358	cf::db_load;	2350	cf::db_load;
1359		2351
1360	# load extensions
1361	warn "load extensions";	2352	warn "load extensions";
1362	cf::load_extensions;	2353	cf::load_extensions;
1363		2354
1364	# reattach attachments to objects	2355	warn "reattach attachments to objects/players";
1365	warn "reattach";
1366	_global_reattach;	2356	_global_reattach;
		2357	warn "reattach attachments to maps";
		2358	reattach $_ for values %MAP;
1367	};	2359	};
1368		2360
1369	if ($@) {	2361	if ($@) {
1370	warn $@;	2362	warn $@;
1371	warn "error while reloading, exiting.";	2363	warn "error while reloading, exiting.";
1372	exit 1;	2364	exit 1;
1373	}	2365	}
1374		2366
1375	warn "reloaded successfully";	2367	warn "reloaded";
1376	};	2368	};
1377		2369
1378	sub perl_reload() {
1379	_perl_reload;
1380	}
1381
1382	register "<global>", __PACKAGE__;
1383
1384	register_command "perl-reload" => sub {	2370	register_command "reload" => sub {
1385	my ($who, $arg) = @_;	2371	my ($who, $arg) = @_;
1386		2372
1387	if ($who->flag (FLAG_WIZ)) {	2373	if ($who->flag (FLAG_WIZ)) {
		2374	$who->message ("start of reload.");
		2375	reload;
1388	$who->message ("reloading...");	2376	$who->message ("end of reload.");
1389	_perl_reload;
1390	}	2377	}
1391	};	2378	};
1392		2379
1393	unshift @INC, $LIBDIR;	2380	unshift @INC, $LIBDIR;
1394		2381
…		…
1396	reentrant => 0,	2383	reentrant => 0,
1397	prio => 0,	2384	prio => 0,
1398	at => $NEXT_TICK || $TICK,	2385	at => $NEXT_TICK || $TICK,
1399	data => WF_AUTOCANCEL,	2386	data => WF_AUTOCANCEL,
1400	cb => sub {	2387	cb => sub {
1401	unless ($FREEZE) {	2388	$NOW = Event::time;
		2389
1402	cf::server_tick; # one server iteration	2390	cf::server_tick; # one server iteration
1403	$RUNTIME += $TICK;	2391	$RUNTIME += $TICK;
1404	}
1405
1406	$NEXT_TICK += $TICK;	2392	$NEXT_TICK += $TICK;
		2393
		2394	$WAIT_FOR_TICK->broadcast;
		2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1407		2396
1408	# if we are delayed by four ticks or more, skip them all	2397	# if we are delayed by four ticks or more, skip them all
1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1410		2399
1411	$TICK_WATCHER->at ($NEXT_TICK);	2400	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1413	},	2402	},
1414	);	2403	);
1415		2404
1416	IO::AIO::max_poll_time $TICK * 0.2;	2405	IO::AIO::max_poll_time $TICK * 0.2;
1417		2406
		2407	Event->io (
1418	Event->io (fd => IO::AIO::poll_fileno,	2408	fd => IO::AIO::poll_fileno,
1419	poll => 'r',	2409	poll => 'r',
1420	prio => 5,	2410	prio => 5,
1421	data => WF_AUTOCANCEL,	2411	data => WF_AUTOCANCEL,
1422	cb => \&IO::AIO::poll_cb);	2412	cb => \&IO::AIO::poll_cb,
		2413	);
1423		2414
1424	# we must not ever block the main coroutine	2415	Event->timer (
1425	$Coro::idle = sub {	2416	data => WF_AUTOCANCEL,
1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2417	after => 0,
1427	warn "FATAL: Coro::idle was called, major BUG\n";	2418	interval => 10,
		2419	cb => sub {
1428	(Coro::unblock_sub {	2420	(Coro::unblock_sub {
1429	Event::one_event;	2421	write_runtime
		2422	or warn "ERROR: unable to write runtime file: $!";
1430	})->();	2423	})->();
1431	};	2424	},
		2425	);
		2426
		2427	END { cf::emergency_save }
1432		2428
1433	1	2429	1
1434		2430

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines