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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC vs.
Revision 1.160 by root, Wed Jan 10 22:54:06 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 $json
158		194
…		…
173		209
174	sub to_json($) {	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	}
		214
		215	=item cf::lock_wait $string
		216
		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	$guard
		263	}
		264
		265	=item cf::async { BLOCK }
		266
		267	Currently the same as Coro::async_pool, meaning you cannot use
		268	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		269	thing you are allowed to do is call C<prio> on it.
		270
		271	=cut
		272
		273	BEGIN { *async = \&Coro::async_pool }
178		274
179	=item cf::sync_job { BLOCK }	275	=item cf::sync_job { BLOCK }
180		276
181	The design of crossfire+ requires that the main coro ($Coro::main) is	277	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	278	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	286	=cut
191		287
192	sub sync_job(&) {	288	sub sync_job(&) {
193	my ($job) = @_;	289	my ($job) = @_;
194		290
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 == $Coro::main) {	291	if ($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;
208	$coro->prio (Coro::PRIO_MAX);	306	})->prio (Coro::PRIO_MAX);
		307
209	while ($busy) {	308	while ($busy) {
210	Coro::cede_notself;	309	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	310	}
		311
		312	wantarray ? @res : $res[0]
213	} else {	313	} else {
214	$coro->join;	314	# we are in another coroutine, how wonderful, everything just works
		315
		316	$job->()
215	}	317	}
216
217	wantarray ? @res : $res[0]
218	}	318	}
219		319
220	=item $coro = cf::coro { BLOCK }	320	=item $coro = cf::async_ext { BLOCK }
221		321
222	Creates and returns a new coro. This coro is automcatially being canceled	322	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	323	extension calling this is being unloaded.
224		324
225	=cut	325	=cut
226		326
227	sub coro(&) {	327	sub async_ext(&) {
228	my $cb = shift;	328	my $cb = shift;
229		329
230	my $coro; $coro = async {	330	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		331
237	$coro->on_destroy (sub {	332	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	333	delete $EXT_CORO{$coro+0};
239	});	334	});
240	$EXT_CORO{$coro+0} = $coro;	335	$EXT_CORO{$coro+0} = $coro;
241		336
242	$coro	337	$coro
243	}	338	}
244		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
245	=back	362	=back
246		363
247	=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	$_[0]{path} =~ m{^/styles/}
		489	}
		490
		491	package cf;
248		492
249	#############################################################################	493	#############################################################################
250		494
251	=head2 ATTACHABLE OBJECTS	495	=head2 ATTACHABLE OBJECTS
252		496
…		…
660	or return;	904	or return;
661		905
662	unless (aio_stat "$filename.pst") {	906	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	907	(aio_load "$filename.pst", $av) >= 0
664	or return;	908	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	909	$av = eval { (Storable::thaw $av)->{objs} };
666	}	910	}
667		911
		912	warn sprintf "loading %s (%d)\n",
		913	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	914	return ($data, $av);
669	}	915	}
670		916
671	#############################################################################	917	#############################################################################
672	# command handling &c	918	# command handling &c
…		…
697	=cut	943	=cut
698		944
699	sub register_extcmd {	945	sub register_extcmd {
700	my ($name, $cb) = @_;	946	my ($name, $cb) = @_;
701		947
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	948	$EXTCMD{$name} = $cb;
706	}	949	}
707		950
708	cf::player->attach (	951	cf::player->attach (
709	on_command => sub {	952	on_command => sub {
710	my ($pl, $name, $params) = @_;	953	my ($pl, $name, $params) = @_;
…		…
723		966
724	my $msg = eval { from_json $buf };	967	my $msg = eval { from_json $buf };
725		968
726	if (ref $msg) {	969	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	971	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	972	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	973	}
731	}	974	}
732	} else {	975	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		978
736	cf::override;	979	cf::override;
737	},	980	},
738	);	981	);
739		982
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	983	sub load_extension {
747	my ($path) = @_;	984	my ($path) = @_;
748		985
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	987	my $base = $1;
751	my $pkg = $1;	988	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	989	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	990	$pkg = "ext::$pkg";
754		991
755	warn "loading '$path' into '$pkg'\n";	992	warn "... loading '$path' into '$pkg'\n";
756		993
757	open my $fh, "<:utf8", $path	994	open my $fh, "<:utf8", $path
758	or die "$path: $!";	995	or die "$path: $!";
759		996
760	my $source =	997	my $source =
…		…
765		1002
766	eval $source	1003	eval $source
767	or die $@ ? "$path: $@\n"	1004	or die $@ ? "$path: $@\n"
768	: "extension disabled.\n";	1005	: "extension disabled.\n";
769		1006
770	push @exts, $pkg;	1007	push @EXTS, $pkg;
771	$ext_pkg{$base} = $pkg;
772
773	# no strict 'refs';
774	# @{"$pkg\::ISA"} = ext::;
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	# }
789
790	# remove commands
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	}	1008	}
815		1009
816	sub load_extensions {	1010	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	1011	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	1012	next unless -r $ext;
…		…
836	};	1030	};
837		1031
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
839		1033
840	#############################################################################	1034	#############################################################################
841	# load/save perl data associated with player->ob objects
842		1035
843	sub all_objects(@) {	1036	=head2 CORE EXTENSIONS
844	@_, map all_objects ($_->inv), @_
845	}
846		1037
847	# TODO: compatibility cruft, remove when no longer needed	1038	Functions and methods that extend core crossfire objects.
848	cf::player->attach (	1039
849	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($) {
850	my ($pl, $path) = @_;	1266	my ($path) = @_;
851		1267
852	for my $o (all_objects $pl->ob) {	1268	utf8::encode $path;
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1269	aio_open $path, O_RDONLY, 0
854	$o->set_ob_key_value ("_perl_data");	1270	or return;
855		1271
856	%$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;
857	}	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};
858	}	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
859	},	1343	}
860	);	1344	}
861		1345
862	#############################################################################	1346	sub load {
		1347	my ($self) = @_;
863		1348
864	=head2 CORE EXTENSIONS	1349	my $path = $self->{path};
		1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
865		1351
866	Functions and methods that extend core crossfire objects.	1352	return if $self->in_memory != cf::MAP_SWAPPED;
867		1353
868	=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;
869		1620
870	=over 4	1621	=over 4
871		1622
872	=item cf::player::exists $login	1623	=item $ob->inv_recursive
873		1624
874	Returns true when the given account exists.	1625	Returns the inventory of the object _and_ their inventories, recursively.
875		1626
876	=cut	1627	=cut
877		1628
878	sub cf::player::exists($) {	1629	sub inv_recursive_;
879	cf::player::find $_[0]	1630	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1631	map { $_, inv_recursive_ $_->inv } @_
881	}	1632	}
882		1633
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1634	sub inv_recursive {
884		1635	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	}	1636	}
		1637
		1638	package cf;
896		1639
897	=back	1640	=back
898		1641
899	=head3 cf::object::player	1642	=head3 cf::object::player
900		1643
…		…
938	(ref $cf::CFG{"may_$access"}	1681	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1682	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1683	: $cf::CFG{"may_$access"})
941	}	1684	}
942		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
943	=head3 cf::client	1884	=head3 cf::client
944		1885
945	=over 4	1886	=over 4
946		1887
947	=item $client->send_drawinfo ($text, $flags)	1888	=item $client->send_drawinfo ($text, $flags)
…		…
990	on_reply => sub {	1931	on_reply => sub {
991	my ($ns, $msg) = @_;	1932	my ($ns, $msg) = @_;
992		1933
993	# this weird shuffling is so that direct followup queries	1934	# this weird shuffling is so that direct followup queries
994	# get handled first	1935	# get handled first
995	my $queue = delete $ns->{query_queue};	1936	my $queue = delete $ns->{query_queue}
		1937	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		1938
997	(shift @$queue)->[1]->($msg);	1939	(shift @$queue)->[1]->($msg);
998		1940
999	push @{ $ns->{query_queue} }, @$queue;	1941	push @{ $ns->{query_queue} }, @$queue;
1000		1942
…		…
1006	}	1948	}
1007	}	1949	}
1008	},	1950	},
1009	);	1951	);
1010		1952
1011	=item $client->coro (\&cb)	1953	=item $client->async (\&cb)
1012		1954
1013	Create a new coroutine, running the specified callback. The coroutine will	1955	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	1956	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	1957	or loss of connection).
1016		1958
1017	=cut	1959	=cut
1018		1960
1019	sub cf::client::coro {	1961	sub cf::client::async {
1020	my ($self, $cb) = @_;	1962	my ($self, $cb) = @_;
1021		1963
1022	my $coro; $coro = async {	1964	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		1965
1029	$coro->on_destroy (sub {	1966	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	1967	delete $self->{_coro}{$coro+0};
1031	});	1968	});
1032		1969
…		…
1204		2141
1205	{	2142	{
1206	my $path = cf::localdir . "/database.pst";	2143	my $path = cf::localdir . "/database.pst";
1207		2144
1208	sub db_load() {	2145	sub db_load() {
1209	warn "loading database $path\n";#d# remove later
1210	$DB = stat $path ? Storable::retrieve $path : { };	2146	$DB = stat $path ? Storable::retrieve $path : { };
1211	}	2147	}
1212		2148
1213	my $pid;	2149	my $pid;
1214		2150
1215	sub db_save() {	2151	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;	2152	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {	2153	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;	2154	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";	2155	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;	2156	rename "$path~", $path;
…		…
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2204	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2205	or return;
1271		2206
1272	local $/;	2207	local $/;
1273	*CFG = YAML::Syck::Load <$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	}
1274	}	2222	}
1275		2223
1276	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
1277	cfg_load;	2231	cfg_load;
1278	db_load;	2232	db_load;
1279	load_extensions;	2233	load_extensions;
1280	Event::loop;	2234	Event::loop;
1281	}	2235	}
1282		2236
1283	#############################################################################	2237	#############################################################################
1284	# initialisation	2238	# initialisation and cleanup
1285		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	$map->save;
		2275	}
		2276	warn "end emergency map save\n";
		2277	};
		2278
		2279	warn "leave emergency perl save\n";
		2280	}
		2281
1286	sub perl_reload() {	2282	sub reload() {
1287	# can/must only be called in main	2283	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2284	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2285	warn "can only reload from main coroutine\n";
1290	return;	2286	return;
1291	}	2287	}
1292		2288
1293	warn "reloading...";	2289	warn "reloading...";
1294		2290
1295	local $FREEZE = 1;	2291	warn "freezing server";
		2292	my $guard = freeze_mainloop;
1296	cf::emergency_save;	2293	cf::emergency_save;
		2294
		2295	warn "sync database to disk";
		2296	cf::db_sync;
		2297	IO::AIO::flush;
1297		2298
1298	eval {	2299	eval {
1299	# if anything goes wrong in here, we should simply crash as we already saved	2300	# if anything goes wrong in here, we should simply crash as we already saved
1300		2301
1301	# cancel all watchers	2302	warn "cancel all watchers";
1302	for (Event::all_watchers) {	2303	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2304	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2305	}
1305		2306
1306	# cancel all extension coros	2307	warn "cancel all extension coros";
1307	$_->cancel for values %EXT_CORO;	2308	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2309	%EXT_CORO = ();
1309		2310
		2311	warn "remove commands";
		2312	%COMMAND = ();
		2313
		2314	warn "remove ext commands";
		2315	%EXTCMD = ();
		2316
1310	# unload all extensions	2317	warn "unload/nuke all extensions";
1311	for (@exts) {	2318	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2319	warn "... unloading $pkg";
1313	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: $@";
1314	}	2326	}
1315		2327
		2328	warn "... nuking $pkg";
		2329	Symbol::delete_package $pkg;
		2330	}
		2331
1316	# unload all modules loaded from $LIBDIR	2332	warn "unload all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2333	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2335
1320	warn "removing <$k>";	2336	warn "removing <$k>";
1321	delete $INC{$k};	2337	delete $INC{$k};
…		…
1328	}	2344	}
1329		2345
1330	Symbol::delete_package $k;	2346	Symbol::delete_package $k;
1331	}	2347	}
1332		2348
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2349	warn "get rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2350	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2352
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2353	warn "unload cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2354	delete $INC{"cf.pm"};
1346		2355
1347	# don't, removes xs symbols, too,	2356	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2357	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2358	#Symbol::delete_package __PACKAGE__;
1350		2359
1351	# reload cf.pm
1352	warn "reloading cf.pm";	2360	warn "reloading cf.pm";
1353	require cf;	2361	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2363
1356	# load config and database again	2364	warn "load config and database again";
1357	cf::cfg_load;	2365	cf::cfg_load;
1358	cf::db_load;	2366	cf::db_load;
1359		2367
1360	# load extensions
1361	warn "load extensions";	2368	warn "load extensions";
1362	cf::load_extensions;	2369	cf::load_extensions;
1363		2370
1364	# reattach attachments to objects	2371	warn "reattach attachments to objects/players";
1365	warn "reattach";
1366	_global_reattach;	2372	_global_reattach;
		2373	warn "reattach attachments to maps";
		2374	reattach $_ for values %MAP;
1367	};	2375	};
1368		2376
1369	if ($@) {	2377	if ($@) {
1370	warn $@;	2378	warn $@;
1371	warn "error while reloading, exiting.";	2379	warn "error while reloading, exiting.";
1372	exit 1;	2380	exit 1;
1373	}	2381	}
1374		2382
1375	warn "reloaded successfully";	2383	warn "reloaded";
1376	};	2384	};
1377		2385
1378	register "<global>", __PACKAGE__;	2386	#############################################################################
1379		2387
		2388	unless ($LINK_MAP) {
		2389	$LINK_MAP = cf::map::new;
		2390
		2391	$LINK_MAP->width (41);
		2392	$LINK_MAP->height (41);
		2393	$LINK_MAP->alloc;
		2394	$LINK_MAP->path ("{link}");
		2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2397
		2398	# dirty hack because... archetypes are not yet loaded
		2399	Event->timer (
		2400	after => 10,
		2401	cb => sub {
		2402	$_[0]->w->cancel;
		2403
		2404	# provide some exits "home"
		2405	my $exit = cf::object::new "exit";
		2406
		2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2410
		2411	$LINK_MAP->insert ($exit->clone, 19, 19);
		2412	$LINK_MAP->insert ($exit->clone, 19, 20);
		2413	$LINK_MAP->insert ($exit->clone, 19, 21);
		2414	$LINK_MAP->insert ($exit->clone, 20, 19);
		2415	$LINK_MAP->insert ($exit->clone, 20, 21);
		2416	$LINK_MAP->insert ($exit->clone, 21, 19);
		2417	$LINK_MAP->insert ($exit->clone, 21, 20);
		2418	$LINK_MAP->insert ($exit->clone, 21, 21);
		2419
		2420	$exit->destroy;
		2421	});
		2422
		2423	$LINK_MAP->{deny_save} = 1;
		2424	$LINK_MAP->{deny_reset} = 1;
		2425
		2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
		2427	}
		2428
1380	register_command "perl-reload" => sub {	2429	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	2430	my ($who, $arg) = @_;
1382		2431
1383	if ($who->flag (FLAG_WIZ)) {	2432	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");	2433	$who->message ("start of reload.");
1385	perl_reload;	2434	reload;
1386	$who->message ("end of reload.");	2435	$who->message ("end of reload.");
1387	}	2436	}
1388	};	2437	};
1389		2438
1390	unshift @INC, $LIBDIR;	2439	unshift @INC, $LIBDIR;
…		…
1393	reentrant => 0,	2442	reentrant => 0,
1394	prio => 0,	2443	prio => 0,
1395	at => $NEXT_TICK || $TICK,	2444	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	2445	data => WF_AUTOCANCEL,
1397	cb => sub {	2446	cb => sub {
1398	unless ($FREEZE) {
1399	cf::server_tick; # one server iteration	2447	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	2448	$RUNTIME += $TICK;
1401	}
1402
1403	$NEXT_TICK += $TICK;	2449	$NEXT_TICK += $TICK;
		2450
		2451	$WAIT_FOR_TICK->broadcast;
		2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
1404		2453
1405	# if we are delayed by four ticks or more, skip them all	2454	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407		2456
1408	$TICK_WATCHER->at ($NEXT_TICK);	2457	$TICK_WATCHER->at ($NEXT_TICK);
…		…
1410	},	2459	},
1411	);	2460	);
1412		2461
1413	IO::AIO::max_poll_time $TICK * 0.2;	2462	IO::AIO::max_poll_time $TICK * 0.2;
1414		2463
		2464	Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	2465	fd => IO::AIO::poll_fileno,
1416	poll => 'r',	2466	poll => 'r',
1417	prio => 5,	2467	prio => 5,
1418	data => WF_AUTOCANCEL,	2468	data => WF_AUTOCANCEL,
1419	cb => \&IO::AIO::poll_cb);	2469	cb => \&IO::AIO::poll_cb,
		2470	);
1420		2471
1421	# we must not ever block the main coroutine	2472	Event->timer (
1422	$Coro::idle = sub {	2473	data => WF_AUTOCANCEL,
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2474	after => 0,
1424	warn "FATAL: Coro::idle was called, major BUG\n";	2475	interval => 10,
		2476	cb => sub {
1425	(Coro::unblock_sub {	2477	(Coro::unblock_sub {
1426	Event::one_event;	2478	write_runtime
		2479	or warn "ERROR: unable to write runtime file: $!";
1427	})->();	2480	})->();
1428	};	2481	},
		2482	);
		2483
		2484	END { cf::emergency_save }
1429		2485
1430	1	2486	1
1431		2487

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