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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.159 by root, Wed Jan 10 22:50:12 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
37		42
38	our @EVENT;	43	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	44	our $LIBDIR = datadir . "/ext";
40		45
41	our $TICK = MAX_TIME * 1e-6;	46	our $TICK = MAX_TIME * 1e-6;
…		…
46	our %CFG;	51	our %CFG;
47		52
48	our $UPTIME; $UPTIME ||= time;	53	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	54	our $RUNTIME;
50		55
		56	our %PLAYER; # all users
51	our %MAP; # all maps	57	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	58	our $LINK_MAP; # the special {link} map
53	our $FREEZE;	59	our $RANDOM_MAPS = cf::localdir . "/random";
		60
		61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		62	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
54		63
55	binmode STDOUT;	64	binmode STDOUT;
56	binmode STDERR;	65	binmode STDERR;
57		66
58	# read virtual server time, if available	67	# read virtual server time, if available
…		…
64		73
65	mkdir cf::localdir;	74	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	75	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	76	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	77	mkdir cf::localdir . "/" . cf::uniquedir;
		78	mkdir $RANDOM_MAPS;
69		79
70	our %EXT_CORO;	80	# a special map that is always available
		81	our $LINK_MAP;
		82	our $EMERGENCY_POSITION;
71		83
72	#############################################################################	84	#############################################################################
73		85
74	=head2 GLOBAL VARIABLES	86	=head2 GLOBAL VARIABLES
75		87
…		…
99		111
100	=item %cf::CFG	112	=item %cf::CFG
101		113
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	114	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	115	from wherever your confdir points to.
		116
		117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		118
		119	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		120	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		121	processing has been done. Call C<< ->wait >> on them to maximise the
		122	window of cpu time available, or simply to synchronise to the server tick.
104		123
105	=back	124	=back
106		125
107	=cut	126	=cut
108		127
…		…
112	utf8::encode $msg;	131	utf8::encode $msg;
113		132
114	$msg .= "\n"	133	$msg .= "\n"
115	unless $msg =~ /\n$/;	134	unless $msg =~ /\n$/;
116		135
117	LOG llevError, "cfperl: $msg";	136	LOG llevError, $msg;
118	};	137	};
119	}	138	}
120		139
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		159
141	$Event::DIED = sub {	160	$Event::DIED = sub {
142	warn "error in event callback: @_";	161	warn "error in event callback: @_";
143	};	162	};
144		163
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	164	=head2 UTILITY FUNCTIONS
150		165
151	=over 4	166	=over 4
152		167
		168	=item dumpval $ref
		169
153	=cut	170	=cut
		171
		172	sub dumpval {
		173	eval {
		174	local $SIG{__DIE__};
		175	my $d;
		176	if (1) {
		177	$d = new Data::Dumper([$_[0]], ["*var"]);
		178	$d->Terse(1);
		179	$d->Indent(2);
		180	$d->Quotekeys(0);
		181	$d->Useqq(1);
		182	#$d->Bless(...);
		183	$d->Seen($_[1]) if @_ > 1;
		184	$d = $d->Dump();
		185	}
		186	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		187	$d
		188	} || "[unable to dump $_[0]: '$@']";
		189	}
154		190
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	191	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		192
157	=item $ref = cf::from_json $json	193	=item $ref = cf::from_json $json
158		194
…		…
174	sub to_json($) {	210	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	212	JSON::Syck::Dump $_[0]
177	}	213	}
178		214
179	# main coro must never ever "block" except in Event	215	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	216
181	# and waiting in Event while the server is otherwise frozen	217	Wait until the given lock is available. See cf::lock_acquire.
		218
		219	=item my $lock = cf::lock_acquire $string
		220
		221	Wait until the given lock is available and then acquires it and returns
		222	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		223	for example when the coroutine gets canceled), the lock is automatically
		224	returned.
		225
		226	Lock names should begin with a unique identifier (for example, cf::map::find
		227	uses map_find and cf::map::load uses map_load).
		228
		229	=cut
		230
		231	our %LOCK;
		232
		233	sub lock_wait($) {
		234	my ($key) = @_;
		235
		236	# wait for lock, if any
		237	while ($LOCK{$key}) {
		238	push @{ $LOCK{$key} }, $Coro::current;
		239	Coro::schedule;
		240	}
		241	}
		242
		243	sub lock_acquire($) {
		244	my ($key) = @_;
		245
		246	# wait, to be sure we are not locked
		247	lock_wait $key;
		248
		249	$LOCK{$key} = [];
		250
		251	Coro::guard {
		252	# wake up all waiters, to be on the safe side
		253	$_->ready for @{ delete $LOCK{$key} };
		254	}
		255	}
		256
		257	sub freeze_mainloop {
		258	return unless $TICK_WATCHER->is_active;
		259
		260	my $guard = Coro::guard { $TICK_WATCHER->start };
		261	$TICK_WATCHER->stop;
		262	$guard
		263	}
		264
		265	=item cf::async { BLOCK }
		266
		267	Currently the same as Coro::async_pool, meaning you cannot use
		268	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		269	thing you are allowed to do is call C<prio> on it.
		270
		271	=cut
		272
		273	BEGIN { *async = \&Coro::async_pool }
		274
		275	=item cf::sync_job { BLOCK }
		276
		277	The design of crossfire+ requires that the main coro ($Coro::main) is
		278	always able to handle events or runnable, as crossfire+ is only partly
		279	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		280
		281	If it must be done, put the blocking parts into C<sync_job>. This will run
		282	the given BLOCK in another coroutine while waiting for the result. The
		283	server will be frozen during this time, so the block should either finish
		284	fast or be very important.
		285
		286	=cut
		287
182	sub sync_job(&) {	288	sub sync_job(&) {
183	my ($job) = @_;	289	my ($job) = @_;
184		290
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	291	if ($Coro::current == $Coro::main) {
		292	# this is the main coro, too bad, we have to block
		293	# till the operation succeeds, freezing the server :/
		294
		295	# TODO: use suspend/resume instead
		296	# (but this is cancel-safe)
		297	my $freeze_guard = freeze_mainloop;
		298
		299	my $busy = 1;
		300	my @res;
		301
		302	(async {
		303	@res = eval { $job->() };
		304	warn $@ if $@;
		305	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	306	})->prio (Coro::PRIO_MAX);
		307
198	while ($busy) {	308	while ($busy) {
199	Coro::cede_notself;	309	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	310	}
		311
		312	wantarray ? @res : $res[0]
202	} else {	313	} else {
203	$coro->join;	314	# we are in another coroutine, how wonderful, everything just works
		315
		316	$job->()
204	}	317	}
205
206	wantarray ? @res : $res[0]
207	}	318	}
208		319
209	=item $coro = cf::coro { BLOCK }	320	=item $coro = cf::async_ext { BLOCK }
210		321
211	Creates and returns a new coro. This coro is automcatially being canceled	322	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	323	extension calling this is being unloaded.
213		324
214	=cut	325	=cut
215		326
216	sub coro(&) {	327	sub async_ext(&) {
217	my $cb = shift;	328	my $cb = shift;
218		329
219	my $coro; $coro = async {	330	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		331
226	$coro->on_destroy (sub {	332	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	333	delete $EXT_CORO{$coro+0};
228	});	334	});
229	$EXT_CORO{$coro+0} = $coro;	335	$EXT_CORO{$coro+0} = $coro;
230		336
231	$coro	337	$coro
232	}	338	}
233		339
		340	sub write_runtime {
		341	my $runtime = cf::localdir . "/runtime";
		342
		343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		344	or return;
		345
		346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		348	and return;
		349
		350	aio_fsync $fh
		351	and return;
		352
		353	close $fh
		354	or return;
		355
		356	aio_rename "$runtime~", $runtime
		357	and return;
		358
		359	1
		360	}
		361
234	=back	362	=back
235		363
236	=cut	364	=cut
		365
		366	#############################################################################
		367
		368	package cf::path;
		369
		370	use overload
		371	'""' => \&as_string;
		372
		373	# used to convert map paths into valid unix filenames by repalcing / by ∕
		374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		375
		376	sub new {
		377	my ($class, $path, $base) = @_;
		378
		379	$path = $path->as_string if ref $path;
		380
		381	my $self = bless { }, $class;
		382
		383	# {... are special paths that are not touched
		384	# ?xxx/... are special absolute paths
		385	# ?random/... random maps
		386	# /! non-realised random map exit
		387	# /... normal maps
		388	# ~/... per-player maps without a specific player (DO NOT USE)
		389	# ~user/... per-player map of a specific user
		390
		391	$path =~ s/$PATH_SEP/\//go;
		392
		393	if ($path =~ /^{/) {
		394	# fine as it is
		395	} elsif ($path =~ s{^\?random/}{}) {
		396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		397	$self->{random} = cf::from_json $data;
		398	} else {
		399	if ($path =~ s{^~([^/]+)?}{}) {
		400	$self->{user_rel} = 1;
		401
		402	if (defined $1) {
		403	$self->{user} = $1;
		404	} elsif ($base =~ m{^~([^/]+)/}) {
		405	$self->{user} = $1;
		406	} else {
		407	warn "cannot resolve user-relative path without user <$path,$base>\n";
		408	}
		409	} elsif ($path =~ /^\//) {
		410	# already absolute
		411	} else {
		412	$base =~ s{[^/]+/?$}{};
		413	return $class->new ("$base/$path");
		414	}
		415
		416	for ($path) {
		417	redo if s{/\.?/}{/};
		418	redo if s{/[^/]+/\.\./}{/};
		419	}
		420	}
		421
		422	$self->{path} = $path;
		423
		424	$self
		425	}
		426
		427	# the name / primary key / in-game path
		428	sub as_string {
		429	my ($self) = @_;
		430
		431	$self->{user_rel} ? "~$self->{user}$self->{path}"
		432	: $self->{random} ? "?random/$self->{path}"
		433	: $self->{path}
		434	}
		435
		436	# the displayed name, this is a one way mapping
		437	sub visible_name {
		438	my ($self) = @_;
		439
		440	# if (my $rmp = $self->{random}) {
		441	# # todo: be more intelligent about this
		442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		443	# } else {
		444	$self->as_string
		445	# }
		446	}
		447
		448	# escape the /'s in the path
		449	sub _escaped_path {
		450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		451	$path
		452	}
		453
		454	# the original (read-only) location
		455	sub load_path {
		456	my ($self) = @_;
		457
		458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		459	}
		460
		461	# the temporary/swap location
		462	sub save_path {
		463	my ($self) = @_;
		464
		465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		468	}
		469
		470	# the unique path, might be eq to save_path
		471	sub uniq_path {
		472	my ($self) = @_;
		473
		474	$self->{user_rel} || $self->{random}
		475	? undef
		476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		477	}
		478
		479	# return random map parameters, or undef
		480	sub random_map_params {
		481	my ($self) = @_;
		482
		483	$self->{random}
		484	}
		485
		486	# this is somewhat ugly, but style maps do need special treatment
		487	sub is_style_map {
		488	$_[0]{path} =~ m{^/styles/}
		489	}
		490
		491	package cf;
237		492
238	#############################################################################	493	#############################################################################
239		494
240	=head2 ATTACHABLE OBJECTS	495	=head2 ATTACHABLE OBJECTS
241		496
…		…
649	or return;	904	or return;
650		905
651	unless (aio_stat "$filename.pst") {	906	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	907	(aio_load "$filename.pst", $av) >= 0
653	or return;	908	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	909	$av = eval { (Storable::thaw $av)->{objs} };
655	}	910	}
656		911
		912	warn sprintf "loading %s (%d)\n",
		913	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	914	return ($data, $av);
658	}	915	}
659		916
660	#############################################################################	917	#############################################################################
661	# command handling &c	918	# command handling &c
…		…
686	=cut	943	=cut
687		944
688	sub register_extcmd {	945	sub register_extcmd {
689	my ($name, $cb) = @_;	946	my ($name, $cb) = @_;
690		947
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	948	$EXTCMD{$name} = $cb;
695	}	949	}
696		950
697	cf::player->attach (	951	cf::player->attach (
698	on_command => sub {	952	on_command => sub {
699	my ($pl, $name, $params) = @_;	953	my ($pl, $name, $params) = @_;
…		…
712		966
713	my $msg = eval { from_json $buf };	967	my $msg = eval { from_json $buf };
714		968
715	if (ref $msg) {	969	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	971	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	972	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	973	}
720	}	974	}
721	} else {	975	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		978
725	cf::override;	979	cf::override;
726	},	980	},
727	);	981	);
728		982
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	983	sub load_extension {
736	my ($path) = @_;	984	my ($path) = @_;
737		985
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	987	my $base = $1;
…		…
754		1002
755	eval $source	1003	eval $source
756	or die $@ ? "$path: $@\n"	1004	or die $@ ? "$path: $@\n"
757	: "extension disabled.\n";	1005	: "extension disabled.\n";
758		1006
759	push @exts, $pkg;	1007	push @EXTS, $pkg;
760	$ext_pkg{$base} = $pkg;
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }
778
779	# remove commands
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	1008	}
804		1009
805	sub load_extensions {	1010	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	1011	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	1012	next unless -r $ext;
…		…
825	};	1030	};
826		1031
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
828		1033
829	#############################################################################	1034	#############################################################################
830	# load/save perl data associated with player->ob objects
831		1035
832	sub all_objects(@) {	1036	=head2 CORE EXTENSIONS
833	@_, map all_objects ($_->inv), @_
834	}
835		1037
836	# TODO: compatibility cruft, remove when no longer needed	1038	Functions and methods that extend core crossfire objects.
837	cf::player->attach (	1039
838	on_load => sub {	1040	=cut
		1041
		1042	package cf::player;
		1043
		1044	use Coro::AIO;
		1045
		1046	=head3 cf::player
		1047
		1048	=over 4
		1049
		1050	=item cf::player::find $login
		1051
		1052	Returns the given player object, loading it if necessary (might block).
		1053
		1054	=cut
		1055
		1056	sub playerdir($) {
		1057	cf::localdir
		1058	. "/"
		1059	. cf::playerdir
		1060	. "/"
		1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1062	}
		1063
		1064	sub path($) {
		1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1066
		1067	(playerdir $login) . "/$login.pl"
		1068	}
		1069
		1070	sub find_active($) {
		1071	$cf::PLAYER{$_[0]}
		1072	and $cf::PLAYER{$_[0]}->active
		1073	and $cf::PLAYER{$_[0]}
		1074	}
		1075
		1076	sub exists($) {
		1077	my ($login) = @_;
		1078
		1079	$cf::PLAYER{$login}
		1080	or cf::sync_job { !aio_stat $login }
		1081	}
		1082
		1083	sub find($) {
		1084	return $cf::PLAYER{$_[0]} || do {
		1085	my $login = $_[0];
		1086
		1087	my $guard = cf::lock_acquire "user_find:$login";
		1088
		1089	$cf::PLAYER{$_[0]} || do {
		1090	my $pl = load_pl path $login
		1091	or return;
		1092	$cf::PLAYER{$login} = $pl
		1093	}
		1094	}
		1095	}
		1096
		1097	sub save($) {
		1098	my ($pl) = @_;
		1099
		1100	return if $pl->{deny_save};
		1101
		1102	my $path = path $pl;
		1103	my $guard = cf::lock_acquire "user_save:$path";
		1104
		1105	return if $pl->{deny_save};
		1106
		1107	aio_mkdir playerdir $pl, 0770;
		1108	$pl->{last_save} = $cf::RUNTIME;
		1109
		1110	$pl->save_pl ($path);
		1111	Coro::cede;
		1112	}
		1113
		1114	sub new($) {
		1115	my ($login) = @_;
		1116
		1117	my $self = create;
		1118
		1119	$self->ob->name ($login);
		1120	$self->{deny_save} = 1;
		1121
		1122	$cf::PLAYER{$login} = $self;
		1123
		1124	$self
		1125	}
		1126
		1127	=item $pl->quit_character
		1128
		1129	Nukes the player without looking back. If logged in, the connection will
		1130	be destroyed. May block for a long time.
		1131
		1132	=cut
		1133
		1134	sub quit_character {
		1135	my ($pl) = @_;
		1136
		1137	$pl->{deny_save} = 1;
		1138	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1139
		1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1141	$pl->deactivate;
		1142	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1143	$pl->ns->destroy if $pl->ns;
		1144
		1145	my $path = playerdir $pl;
		1146	my $temp = "$path~$cf::RUNTIME~deleting~";
		1147	aio_rename $path, $temp;
		1148	delete $cf::PLAYER{$pl->ob->name};
		1149	$pl->destroy;
		1150	IO::AIO::aio_rmtree $temp;
		1151	}
		1152
		1153	=item cf::player::list_logins
		1154
		1155	Returns am arrayref of all valid playernames in the system, can take a
		1156	while and may block, so not sync_job-capable, ever.
		1157
		1158	=cut
		1159
		1160	sub list_logins {
		1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1162	or return [];
		1163
		1164	my @logins;
		1165
		1166	for my $login (@$dirs) {
		1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1168	aio_read $fh, 0, 512, my $buf, 0 or next;
		1169	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1170
		1171	utf8::decode $login;
		1172	push @logins, $login;
		1173	}
		1174
		1175	\@logins
		1176	}
		1177
		1178	=item $player->maps
		1179
		1180	Returns an arrayref of cf::path's of all maps that are private for this
		1181	player. May block.
		1182
		1183	=cut
		1184
		1185	sub maps($) {
		1186	my ($pl) = @_;
		1187
		1188	my $files = aio_readdir playerdir $pl
		1189	or return;
		1190
		1191	my @paths;
		1192
		1193	for (@$files) {
		1194	utf8::decode $_;
		1195	next if /\.(?:pl|pst)$/;
		1196	next unless /^$PATH_SEP/o;
		1197
		1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
		1199	}
		1200
		1201	\@paths
		1202	}
		1203
		1204	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1205
		1206	Sends an ext reply to the player.
		1207
		1208	=cut
		1209
		1210	sub ext_reply($$$%) {
		1211	my ($self, $id, %msg) = @_;
		1212
		1213	$msg{msgid} = $id;
		1214
		1215	$self->send ("ext " . cf::to_json \%msg);
		1216	}
		1217
		1218	package cf;
		1219
		1220	=back
		1221
		1222
		1223	=head3 cf::map
		1224
		1225	=over 4
		1226
		1227	=cut
		1228
		1229	package cf::map;
		1230
		1231	use Fcntl;
		1232	use Coro::AIO;
		1233
		1234	our $MAX_RESET = 3600;
		1235	our $DEFAULT_RESET = 3000;
		1236
		1237	sub generate_random_map {
		1238	my ($path, $rmp) = @_;
		1239
		1240	# mit "rum" bekleckern, nicht
		1241	cf::map::_create_random_map
		1242	$path,
		1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1246	$rmp->{exit_on_final_map},
		1247	$rmp->{xsize}, $rmp->{ysize},
		1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1253	(cf::region::find $rmp->{region})
		1254	}
		1255
		1256	# and all this just because we cannot iterate over
		1257	# all maps in C++...
		1258	sub change_all_map_light {
		1259	my ($change) = @_;
		1260
		1261	$_->change_map_light ($change)
		1262	for grep $_->outdoor, values %cf::MAP;
		1263	}
		1264
		1265	sub try_load_header($) {
839	my ($pl, $path) = @_;	1266	my ($path) = @_;
840		1267
841	for my $o (all_objects $pl->ob) {	1268	utf8::encode $path;
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1269	aio_open $path, O_RDONLY, 0
843	$o->set_ob_key_value ("_perl_data");	1270	or return;
844		1271
845	%$o = %{ Storable::thaw pack "H*", $value };	1272	my $map = cf::map::new
		1273	or return;
		1274
		1275	# for better error messages only, will be overwritten
		1276	$map->path ($path);
		1277
		1278	$map->load_header ($path)
		1279	or return;
		1280
		1281	$map->{load_path} = $path;
		1282
		1283	$map
		1284	}
		1285
		1286	sub find;
		1287	sub find {
		1288	my ($path, $origin) = @_;
		1289
		1290	#warn "find<$path,$origin>\n";#d#
		1291
		1292	$path = new cf::path $path, $origin && $origin->path;
		1293	my $key = $path->as_string;
		1294
		1295	cf::lock_wait "map_find:$key";
		1296
		1297	$cf::MAP{$key} || do {
		1298	my $guard = cf::lock_acquire "map_find:$key";
		1299
		1300	# do it the slow way
		1301	my $map = try_load_header $path->save_path;
		1302
		1303	Coro::cede;
		1304
		1305	if ($map) {
		1306	$map->last_access ((delete $map->{last_access})
		1307	|| $cf::RUNTIME); #d#
		1308	# safety
		1309	$map->{instantiate_time} = $cf::RUNTIME
		1310	if $map->{instantiate_time} > $cf::RUNTIME;
		1311	} else {
		1312	if (my $rmp = $path->random_map_params) {
		1313	$map = generate_random_map $key, $rmp;
		1314	} else {
		1315	$map = try_load_header $path->load_path;
846	}	1316	}
		1317
		1318	$map or return;
		1319
		1320	$map->{load_original} = 1;
		1321	$map->{instantiate_time} = $cf::RUNTIME;
		1322	$map->last_access ($cf::RUNTIME);
		1323	$map->instantiate;
		1324
		1325	# per-player maps become, after loading, normal maps
		1326	$map->per_player (0) if $path->{user_rel};
847	}	1327	}
		1328
		1329	$map->path ($key);
		1330	$map->{path} = $path;
		1331	$map->{last_save} = $cf::RUNTIME;
		1332
		1333	Coro::cede;
		1334
		1335	if ($map->should_reset) {
		1336	$map->reset;
		1337	undef $guard;
		1338	$map = find $path
		1339	or return;
		1340	}
		1341
		1342	$cf::MAP{$key} = $map
848	},	1343	}
849	);	1344	}
850		1345
851	#############################################################################	1346	sub load {
		1347	my ($self) = @_;
852		1348
853	=head2 CORE EXTENSIONS	1349	my $path = $self->{path};
		1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
854		1351
855	Functions and methods that extend core crossfire objects.	1352	return if $self->in_memory != cf::MAP_SWAPPED;
856		1353
857	=head3 cf::player	1354	$self->in_memory (cf::MAP_LOADING);
		1355
		1356	$self->alloc;
		1357	$self->load_objects ($self->{load_path}, 1)
		1358	or return;
		1359
		1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1361	if delete $self->{load_original};
		1362
		1363	if (my $uniq = $path->uniq_path) {
		1364	utf8::encode $uniq;
		1365	if (aio_open $uniq, O_RDONLY, 0) {
		1366	$self->clear_unique_items;
		1367	$self->load_objects ($uniq, 0);
		1368	}
		1369	}
		1370
		1371	Coro::cede;
		1372
		1373	# now do the right thing for maps
		1374	$self->link_multipart_objects;
		1375
		1376	if ($self->{path}->is_style_map) {
		1377	$self->{deny_save} = 1;
		1378	$self->{deny_reset} = 1;
		1379	} else {
		1380	$self->fix_auto_apply;
		1381	$self->decay_objects;
		1382	$self->update_buttons;
		1383	$self->set_darkness_map;
		1384	$self->difficulty ($self->estimate_difficulty)
		1385	unless $self->difficulty;
		1386	$self->activate;
		1387	}
		1388
		1389	Coro::cede;
		1390
		1391	$self->in_memory (cf::MAP_IN_MEMORY);
		1392	}
		1393
		1394	# find and load all maps in the 3x3 area around a map
		1395	sub load_diag {
		1396	my ($map) = @_;
		1397
		1398	my @diag; # diagonal neighbours
		1399
		1400	for (0 .. 3) {
		1401	my $neigh = $map->tile_path ($_)
		1402	or next;
		1403	$neigh = find $neigh, $map
		1404	or next;
		1405	$neigh->load;
		1406
		1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1409	}
		1410
		1411	for (@diag) {
		1412	my $neigh = find @$_
		1413	or next;
		1414	$neigh->load;
		1415	}
		1416	}
		1417
		1418	sub find_sync {
		1419	my ($path, $origin) = @_;
		1420
		1421	cf::sync_job { find $path, $origin }
		1422	}
		1423
		1424	sub do_load_sync {
		1425	my ($map) = @_;
		1426
		1427	cf::sync_job { $map->load };
		1428	}
		1429
		1430	our %MAP_PREFETCH;
		1431	our $MAP_PREFETCHER = Coro::async {
		1432	while () {
		1433	while (%MAP_PREFETCH) {
		1434	my $key = each %MAP_PREFETCH
		1435	or next;
		1436	my $path = delete $MAP_PREFETCH{$key};
		1437
		1438	my $map = find $path
		1439	or next;
		1440	$map->load;
		1441	}
		1442	Coro::schedule;
		1443	}
		1444	};
		1445
		1446	sub find_async {
		1447	my ($path, $origin) = @_;
		1448
		1449	$path = new cf::path $path, $origin && $origin->path;
		1450	my $key = $path->as_string;
		1451
		1452	if (my $map = $cf::MAP{$key}) {
		1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1454	}
		1455
		1456	$MAP_PREFETCH{$key} = $path;
		1457	$MAP_PREFETCHER->ready;
		1458
		1459	()
		1460	}
		1461
		1462	sub save {
		1463	my ($self) = @_;
		1464
		1465	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1466
		1467	$self->{last_save} = $cf::RUNTIME;
		1468
		1469	return unless $self->dirty;
		1470
		1471	my $save = $self->{path}->save_path; utf8::encode $save;
		1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1473
		1474	$self->{load_path} = $save;
		1475
		1476	return if $self->{deny_save};
		1477
		1478	local $self->{last_access} = $self->last_access;#d#
		1479
		1480	cf::async {
		1481	$_->contr->save for $self->players;
		1482	};
		1483
		1484	if ($uniq) {
		1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1486	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1487	} else {
		1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1489	}
		1490	}
		1491
		1492	sub swap_out {
		1493	my ($self) = @_;
		1494
		1495	# save first because save cedes
		1496	$self->save;
		1497
		1498	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1499
		1500	return if $self->players;
		1501	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1502	return if $self->{deny_save};
		1503
		1504	$self->clear;
		1505	$self->in_memory (cf::MAP_SWAPPED);
		1506	}
		1507
		1508	sub reset_at {
		1509	my ($self) = @_;
		1510
		1511	# TODO: safety, remove and allow resettable per-player maps
		1512	return 1e99 if $self->{path}{user_rel};
		1513	return 1e99 if $self->{deny_reset};
		1514
		1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1517
		1518	$time + $to
		1519	}
		1520
		1521	sub should_reset {
		1522	my ($self) = @_;
		1523
		1524	$self->reset_at <= $cf::RUNTIME
		1525	}
		1526
		1527	sub unlink_save {
		1528	my ($self) = @_;
		1529
		1530	utf8::encode (my $save = $self->{path}->save_path);
		1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1533	}
		1534
		1535	sub rename {
		1536	my ($self, $new_path) = @_;
		1537
		1538	$self->unlink_save;
		1539
		1540	delete $cf::MAP{$self->path};
		1541	$self->{path} = new cf::path $new_path;
		1542	$self->path ($self->{path}->as_string);
		1543	$cf::MAP{$self->path} = $self;
		1544
		1545	$self->save;
		1546	}
		1547
		1548	sub reset {
		1549	my ($self) = @_;
		1550
		1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1552
		1553	return if $self->players;
		1554	return if $self->{path}{user_rel};#d#
		1555
		1556	warn "resetting map ", $self->path;#d#
		1557
		1558	delete $cf::MAP{$self->path};
		1559
		1560	$_->clear_links_to ($self) for values %cf::MAP;
		1561
		1562	$self->unlink_save;
		1563	$self->destroy;
		1564	}
		1565
		1566	my $nuke_counter = "aaaa";
		1567
		1568	sub nuke {
		1569	my ($self) = @_;
		1570
		1571	$self->{deny_save} = 1;
		1572	$self->reset_timeout (1);
		1573	$self->rename ("{nuke}/" . ($nuke_counter++));
		1574	$self->reset; # polite request, might not happen
		1575	}
		1576
		1577	sub customise_for {
		1578	my ($map, $ob) = @_;
		1579
		1580	if ($map->per_player) {
		1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1582	}
		1583
		1584	$map
		1585	}
		1586
		1587	=item cf::map::unique_maps
		1588
		1589	Returns an arrayref of cf::path's of all shared maps that have
		1590	instantiated unique items. May block.
		1591
		1592	=cut
		1593
		1594	sub unique_maps() {
		1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1596	or return;
		1597
		1598	my @paths;
		1599
		1600	for (@$files) {
		1601	utf8::decode $_;
		1602	next if /\.pst$/;
		1603	next unless /^$PATH_SEP/o;
		1604
		1605	push @paths, new cf::path $_;
		1606	}
		1607
		1608	\@paths
		1609	}
		1610
		1611	package cf;
		1612
		1613	=back
		1614
		1615	=head3 cf::object
		1616
		1617	=cut
		1618
		1619	package cf::object;
858		1620
859	=over 4	1621	=over 4
860		1622
861	=item cf::player::exists $login	1623	=item $ob->inv_recursive
862		1624
863	Returns true when the given account exists.	1625	Returns the inventory of the object _and_ their inventories, recursively.
864		1626
865	=cut	1627	=cut
866		1628
867	sub cf::player::exists($) {	1629	sub inv_recursive_;
868	cf::player::find $_[0]	1630	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1631	map { $_, inv_recursive_ $_->inv } @_
870	}	1632	}
871		1633
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1634	sub inv_recursive {
873		1635	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1636	}
		1637
		1638	package cf;
885		1639
886	=back	1640	=back
887		1641
888	=head3 cf::object::player	1642	=head3 cf::object::player
889		1643
…		…
927	(ref $cf::CFG{"may_$access"}	1681	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1682	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1683	: $cf::CFG{"may_$access"})
930	}	1684	}
931		1685
		1686	=item $player_object->enter_link
		1687
		1688	Freezes the player and moves him/her to a special map (C<{link}>).
		1689
		1690	The player should be reaosnably safe there for short amounts of time. You
		1691	I<MUST> call C<leave_link> as soon as possible, though.
		1692
		1693	=item $player_object->leave_link ($map, $x, $y)
		1694
		1695	Moves the player out of the specila link map onto the given map. If the
		1696	map is not valid (or omitted), the player will be moved back to the
		1697	location he/she was before the call to C<enter_link>, or, if that fails,
		1698	to the emergency map position.
		1699
		1700	Might block.
		1701
		1702	=cut
		1703
		1704	sub cf::object::player::enter_link {
		1705	my ($self) = @_;
		1706
		1707	$self->deactivate_recursive;
		1708
		1709	return if $self->map == $LINK_MAP;
		1710
		1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1712	if $self->map;
		1713
		1714	$self->enter_map ($LINK_MAP, 20, 20);
		1715	}
		1716
		1717	sub cf::object::player::leave_link {
		1718	my ($self, $map, $x, $y) = @_;
		1719
		1720	my $link_pos = delete $self->{_link_pos};
		1721
		1722	unless ($map) {
		1723	# restore original map position
		1724	($map, $x, $y) = @{ $link_pos || [] };
		1725	$map = cf::map::find $map;
		1726
		1727	unless ($map) {
		1728	($map, $x, $y) = @$EMERGENCY_POSITION;
		1729	$map = cf::map::find $map
		1730	or die "FATAL: cannot load emergency map\n";
		1731	}
		1732	}
		1733
		1734	($x, $y) = (-1, -1)
		1735	unless (defined $x) && (defined $y);
		1736
		1737	# use -1 or undef as default coordinates, not 0, 0
		1738	($x, $y) = ($map->enter_x, $map->enter_y)
		1739	if $x <=0 && $y <= 0;
		1740
		1741	$map->load;
		1742	$map->load_diag;
		1743
		1744	return unless $self->contr->active;
		1745	$self->activate_recursive;
		1746	$self->enter_map ($map, $x, $y);
		1747	}
		1748
		1749	cf::player->attach (
		1750	on_logout => sub {
		1751	my ($pl) = @_;
		1752
		1753	# abort map switching before logout
		1754	if ($pl->ob->{_link_pos}) {
		1755	cf::sync_job {
		1756	$pl->ob->leave_link
		1757	};
		1758	}
		1759	},
		1760	on_login => sub {
		1761	my ($pl) = @_;
		1762
		1763	# try to abort aborted map switching on player login :)
		1764	# should happen only on crashes
		1765	if ($pl->ob->{_link_pos}) {
		1766	$pl->ob->enter_link;
		1767	(async {
		1768	# we need this sleep as the login has a concurrent enter_exit running
		1769	# and this sleep increases chances of the player not ending up in scorn
		1770	$pl->ob->reply (undef,
		1771	"There was an internal problem at your last logout, "
		1772	. "the server will try to bring you to your intended destination in a second.",
		1773	cf::NDI_RED);
		1774	Coro::Timer::sleep 1;
		1775	$pl->ob->leave_link;
		1776	})->prio (2);
		1777	}
		1778	},
		1779	);
		1780
		1781	=item $player_object->goto ($path, $x, $y)
		1782
		1783	=cut
		1784
		1785	sub cf::object::player::goto {
		1786	my ($self, $path, $x, $y) = @_;
		1787
		1788	$path = new cf::path $path;
		1789
		1790	$self->enter_link;
		1791
		1792	(async {
		1793	my $map = cf::map::find $path->as_string;
		1794	$map = $map->customise_for ($self) if $map;
		1795
		1796	# warn "entering ", $map->path, " at ($x, $y)\n"
		1797	# if $map;
		1798
		1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1800
		1801	$self->leave_link ($map, $x, $y);
		1802	})->prio (1);
		1803	}
		1804
		1805	=item $player_object->enter_exit ($exit_object)
		1806
		1807	=cut
		1808
		1809	sub parse_random_map_params {
		1810	my ($spec) = @_;
		1811
		1812	my $rmp = { # defaults
		1813	xsize => 10,
		1814	ysize => 10,
		1815	};
		1816
		1817	for (split /\n/, $spec) {
		1818	my ($k, $v) = split /\s+/, $_, 2;
		1819
		1820	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1821	}
		1822
		1823	$rmp
		1824	}
		1825
		1826	sub prepare_random_map {
		1827	my ($exit) = @_;
		1828
		1829	# all this does is basically replace the /! path by
		1830	# a new random map path (?random/...) with a seed
		1831	# that depends on the exit object
		1832
		1833	my $rmp = parse_random_map_params $exit->msg;
		1834
		1835	if ($exit->map) {
		1836	$rmp->{region} = $exit->map->region_name;
		1837	$rmp->{origin_map} = $exit->map->path;
		1838	$rmp->{origin_x} = $exit->x;
		1839	$rmp->{origin_y} = $exit->y;
		1840	}
		1841
		1842	$rmp->{random_seed} ||= $exit->random_seed;
		1843
		1844	my $data = cf::to_json $rmp;
		1845	my $md5 = Digest::MD5::md5_hex $data;
		1846
		1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1848	aio_write $fh, 0, (length $data), $data, 0;
		1849
		1850	$exit->slaying ("?random/$md5");
		1851	$exit->msg (undef);
		1852	}
		1853	}
		1854
		1855	sub cf::object::player::enter_exit {
		1856	my ($self, $exit) = @_;
		1857
		1858	return unless $self->type == cf::PLAYER;
		1859
		1860	$self->enter_link;
		1861
		1862	(async {
		1863	$self->deactivate_recursive; # just to be sure
		1864	unless (eval {
		1865	prepare_random_map $exit
		1866	if $exit->slaying eq "/!";
		1867
		1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1870
		1871	1;
		1872	}) {
		1873	$self->message ("Something went wrong deep within the crossfire server. "
		1874	. "I'll try to bring you back to the map you were before. "
		1875	. "Please report this to the dungeon master!",
		1876	cf::NDI_UNIQUE | cf::NDI_RED);
		1877
		1878	warn "ERROR in enter_exit: $@";
		1879	$self->leave_link;
		1880	}
		1881	})->prio (1);
		1882	}
		1883
932	=head3 cf::client	1884	=head3 cf::client
933		1885
934	=over 4	1886	=over 4
935		1887
936	=item $client->send_drawinfo ($text, $flags)	1888	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	1931	on_reply => sub {
980	my ($ns, $msg) = @_;	1932	my ($ns, $msg) = @_;
981		1933
982	# this weird shuffling is so that direct followup queries	1934	# this weird shuffling is so that direct followup queries
983	# get handled first	1935	# get handled first
984	my $queue = delete $ns->{query_queue};	1936	my $queue = delete $ns->{query_queue}
		1937	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		1938
986	(shift @$queue)->[1]->($msg);	1939	(shift @$queue)->[1]->($msg);
987		1940
988	push @{ $ns->{query_queue} }, @$queue;	1941	push @{ $ns->{query_queue} }, @$queue;
989		1942
…		…
995	}	1948	}
996	}	1949	}
997	},	1950	},
998	);	1951	);
999		1952
1000	=item $client->coro (\&cb)	1953	=item $client->async (\&cb)
1001		1954
1002	Create a new coroutine, running the specified callback. The coroutine will	1955	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	1956	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	1957	or loss of connection).
1005		1958
1006	=cut	1959	=cut
1007		1960
1008	sub cf::client::coro {	1961	sub cf::client::async {
1009	my ($self, $cb) = @_;	1962	my ($self, $cb) = @_;
1010		1963
1011	my $coro; $coro = async {	1964	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		1965
1018	$coro->on_destroy (sub {	1966	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	1967	delete $self->{_coro}{$coro+0};
1020	});	1968	});
1021		1969
…		…
1193		2141
1194	{	2142	{
1195	my $path = cf::localdir . "/database.pst";	2143	my $path = cf::localdir . "/database.pst";
1196		2144
1197	sub db_load() {	2145	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };	2146	$DB = stat $path ? Storable::retrieve $path : { };
1200	}	2147	}
1201		2148
1202	my $pid;	2149	my $pid;
1203		2150
1204	sub db_save() {	2151	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;	2152	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {	2153	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;	2154	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";	2155	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;	2156	rename "$path~", $path;
…		…
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2204	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2205	or return;
1260		2206
1261	local $/;	2207	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2208	*CFG = YAML::Syck::Load <$fh>;
		2209
		2210	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2211
		2212	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2213	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2214
		2215	if (exists $CFG{mlockall}) {
		2216	eval {
		2217	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2218	and die "WARNING: m(un)lockall failed: $!\n";
		2219	};
		2220	warn $@ if $@;
		2221	}
1263	}	2222	}
1264		2223
1265	sub main {	2224	sub main {
		2225	# we must not ever block the main coroutine
		2226	local $Coro::idle = sub {
		2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2228	async { Event::one_event };
		2229	};
		2230
1266	cfg_load;	2231	cfg_load;
1267	db_load;	2232	db_load;
1268	load_extensions;	2233	load_extensions;
1269	Event::loop;	2234	Event::loop;
1270	}	2235	}
1271		2236
1272	#############################################################################	2237	#############################################################################
1273	# initialisation	2238	# initialisation and cleanup
1274		2239
		2240	# install some emergency cleanup handlers
		2241	BEGIN {
		2242	for my $signal (qw(INT HUP TERM)) {
		2243	Event->signal (
		2244	data => WF_AUTOCANCEL,
		2245	signal => $signal,
		2246	cb => sub {
		2247	cf::cleanup "SIG$signal";
		2248	},
		2249	);
		2250	}
		2251	}
		2252
		2253	sub emergency_save() {
		2254	my $freeze_guard = cf::freeze_mainloop;
		2255
		2256	warn "enter emergency perl save\n";
		2257
		2258	cf::sync_job {
		2259	# use a peculiar iteration method to avoid tripping on perl
		2260	# refcount bugs in for. also avoids problems with players
		2261	# and maps saved/Destroyed asynchronously.
		2262	warn "begin emergency player save\n";
		2263	for my $login (keys %cf::PLAYER) {
		2264	my $pl = $cf::PLAYER{$login} or next;
		2265	$pl->valid or next;
		2266	$pl->save;
		2267	}
		2268	warn "end emergency player save\n";
		2269
		2270	warn "begin emergency map save\n";
		2271	for my $path (keys %cf::MAP) {
		2272	my $map = $cf::MAP{$path} or next;
		2273	$map->valid or next;
		2274	$map->save;
		2275	}
		2276	warn "end emergency map save\n";
		2277	};
		2278
		2279	warn "leave emergency perl save\n";
		2280	}
		2281
1275	sub _perl_reload() {	2282	sub reload() {
		2283	# can/must only be called in main
		2284	if ($Coro::current != $Coro::main) {
		2285	warn "can only reload from main coroutine\n";
		2286	return;
		2287	}
		2288
1276	warn "reloading...";	2289	warn "reloading...";
1277		2290
		2291	warn "freezing server";
		2292	my $guard = freeze_mainloop;
		2293	cf::emergency_save;
		2294
		2295	warn "sync database to disk";
		2296	cf::db_sync;
		2297	IO::AIO::flush;
		2298
1278	eval {	2299	eval {
1279	local $FREEZE = 1;	2300	# if anything goes wrong in here, we should simply crash as we already saved
1280		2301
1281	cf::emergency_save;
1282
1283	# cancel all watchers	2302	warn "cancel all watchers";
1284	for (Event::all_watchers) {	2303	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2304	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2305	}
1287		2306
1288	# cancel all extension coros	2307	warn "cancel all extension coros";
1289	$_->cancel for values %EXT_CORO;	2308	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2309	%EXT_CORO = ();
1291		2310
		2311	warn "remove commands";
		2312	%COMMAND = ();
		2313
		2314	warn "remove ext commands";
		2315	%EXTCMD = ();
		2316
1292	# unload all extensions	2317	warn "unload/nuke all extensions";
1293	for (@exts) {	2318	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2319	warn "unloading <$pkg>";
1295	unload_extension $_;	2320
		2321	if (my $cb = $pkg->can ("unload")) {
		2322	eval {
		2323	$cb->($pkg);
		2324	1
		2325	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2326	}
1297		2327
		2328	Symbol::delete_package $pkg;
		2329	}
		2330
1298	# unload all modules loaded from $LIBDIR	2331	warn "unload all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2332	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2333	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2334
1302	warn "removing <$k>";	2335	warn "removing <$k>";
1303	delete $INC{$k};	2336	delete $INC{$k};
…		…
1310	}	2343	}
1311		2344
1312	Symbol::delete_package $k;	2345	Symbol::delete_package $k;
1313	}	2346	}
1314		2347
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2348	warn "get rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2349	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2350	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2351
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2352	warn "unload cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2353	delete $INC{"cf.pm"};
1328		2354
1329	# don't, removes xs symbols, too,	2355	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2356	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2357	#Symbol::delete_package __PACKAGE__;
1332		2358
1333	# reload cf.pm
1334	warn "reloading cf.pm";	2359	warn "reloading cf.pm";
1335	require cf;	2360	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2361	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2362
1338	# load config and database again	2363	warn "load config and database again";
1339	cf::cfg_load;	2364	cf::cfg_load;
1340	cf::db_load;	2365	cf::db_load;
1341		2366
1342	# load extensions
1343	warn "load extensions";	2367	warn "load extensions";
1344	cf::load_extensions;	2368	cf::load_extensions;
1345		2369
1346	# reattach attachments to objects	2370	warn "reattach attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2371	_global_reattach;
		2372	warn "reattach attachments to maps";
		2373	reattach $_ for values %MAP;
1349	};	2374	};
1350	warn $@ if $@;	2375
		2376	if ($@) {
		2377	warn $@;
		2378	warn "error while reloading, exiting.";
		2379	exit 1;
		2380	}
1351		2381
1352	warn "reloaded";	2382	warn "reloaded";
1353	};	2383	};
1354		2384
1355	sub perl_reload() {	2385	#############################################################################
1356	_perl_reload;
1357	}
1358		2386
1359	register "<global>", __PACKAGE__;	2387	unless ($LINK_MAP) {
		2388	$LINK_MAP = cf::map::new;
1360		2389
		2390	$LINK_MAP->width (41);
		2391	$LINK_MAP->height (41);
		2392	$LINK_MAP->alloc;
		2393	$LINK_MAP->path ("{link}");
		2394	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2395	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2396
		2397	# dirty hack because... archetypes are not yet loaded
		2398	Event->timer (
		2399	after => 10,
		2400	cb => sub {
		2401	$_[0]->w->cancel;
		2402
		2403	# provide some exits "home"
		2404	my $exit = cf::object::new "exit";
		2405
		2406	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2407	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2408	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2409
		2410	$LINK_MAP->insert ($exit->clone, 19, 19);
		2411	$LINK_MAP->insert ($exit->clone, 19, 20);
		2412	$LINK_MAP->insert ($exit->clone, 19, 21);
		2413	$LINK_MAP->insert ($exit->clone, 20, 19);
		2414	$LINK_MAP->insert ($exit->clone, 20, 21);
		2415	$LINK_MAP->insert ($exit->clone, 21, 19);
		2416	$LINK_MAP->insert ($exit->clone, 21, 20);
		2417	$LINK_MAP->insert ($exit->clone, 21, 21);
		2418
		2419	$exit->destroy;
		2420	});
		2421
		2422	$LINK_MAP->{deny_save} = 1;
		2423	$LINK_MAP->{deny_reset} = 1;
		2424
		2425	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2426	}
		2427
1361	register_command "perl-reload" => sub {	2428	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2429	my ($who, $arg) = @_;
1363		2430
1364	if ($who->flag (FLAG_WIZ)) {	2431	if ($who->flag (FLAG_WIZ)) {
		2432	$who->message ("start of reload.");
		2433	reload;
1365	$who->message ("reloading...");	2434	$who->message ("end of reload.");
1366	_perl_reload;
1367	}	2435	}
1368	};	2436	};
1369		2437
1370	unshift @INC, $LIBDIR;	2438	unshift @INC, $LIBDIR;
1371		2439
…		…
1373	reentrant => 0,	2441	reentrant => 0,
1374	prio => 0,	2442	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2443	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2444	data => WF_AUTOCANCEL,
1377	cb => sub {	2445	cb => sub {
1378	unless ($FREEZE) {
1379	cf::server_tick; # one server iteration	2446	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2447	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2448	$NEXT_TICK += $TICK;
		2449
		2450	$WAIT_FOR_TICK->broadcast;
		2451	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1384		2452
1385	# if we are delayed by four ticks or more, skip them all	2453	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2454	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2455
1388	$TICK_WATCHER->at ($NEXT_TICK);	2456	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1390	},	2458	},
1391	);	2459	);
1392		2460
1393	IO::AIO::max_poll_time $TICK * 0.2;	2461	IO::AIO::max_poll_time $TICK * 0.2;
1394		2462
		2463	Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2464	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2465	poll => 'r',
1397	prio => 5,	2466	prio => 5,
1398	data => WF_AUTOCANCEL,	2467	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2468	cb => \&IO::AIO::poll_cb,
		2469	);
1400		2470
1401	# we must not ever block the main coroutine	2471	Event->timer (
1402	$Coro::idle = sub {	2472	data => WF_AUTOCANCEL,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2473	after => 0,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2474	interval => 10,
		2475	cb => sub {
1405	(Coro::unblock_sub {	2476	(Coro::unblock_sub {
1406	Event::one_event;	2477	write_runtime
		2478	or warn "ERROR: unable to write runtime file: $!";
1407	})->();	2479	})->();
1408	};	2480	},
		2481	);
		2482
		2483	END { cf::emergency_save }
1409		2484
1410	1	2485	1
1411		2486

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