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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.194 by root, Wed Jan 24 22:42:49 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 3.5 ();
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;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	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
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$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
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
46		53
47	our %CFG;	54	our %CFG;
48		55
49	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	57	our $RUNTIME;
51		58
		59	our %PLAYER; # all users
52	our %MAP; # all maps	60	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	62	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		69
58	binmode STDOUT;	70	binmode STDOUT;
59	binmode STDERR;	71	binmode STDERR;
60		72
61	# read virtual server time, if available	73	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	84	mkdir $RANDOM_MAPS;
73		85
74	# a special map that is always available	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78		87
79	#############################################################################	88	#############################################################################
80		89
81	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
82		91
…		…
106		115
107	=item %cf::CFG	116	=item %cf::CFG
108		117
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
111		127
112	=back	128	=back
113		129
114	=cut	130	=cut
115		131
…		…
119	utf8::encode $msg;	135	utf8::encode $msg;
120		136
121	$msg .= "\n"	137	$msg .= "\n"
122	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
123		139
124	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
125	};	141	};
126	}	142	}
127		143
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		163
148	$Event::DIED = sub {	164	$Event::DIED = sub {
149	warn "error in event callback: @_";	165	warn "error in event callback: @_";
150	};	166	};
151		167
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
157		169
158	=over 4	170	=over 4
159		171
		172	=item dumpval $ref
		173
160	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
161		194
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		196
164	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
165		198
…		…
180		213
181	sub to_json($) {	214	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
184	}	217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
185		282
186	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
187		284
188	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
205		302
206	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	304	# (but this is cancel-safe)
208	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
209		306
210	my $busy = 1;	307	my $busy = 1;
211	my @res;	308	my @res;
212		309
213	(Coro::async {	310	(async {
214	@res = eval { $job->() };	311	@res = eval { $job->() };
215	warn $@ if $@;	312	warn $@ if $@;
216	undef $busy;	313	undef $busy;
217	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
218		315
219	while ($busy) {	316	while ($busy) {
220	Coro::cede_notself;	317	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	318	}
223		319
224	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
225	} else {	321	} else {
226	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
227		323
228	$job->()	324	$job->()
229	}	325	}
230	}	326	}
231		327
232	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
233		329
234	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
236		332
237	=cut	333	=cut
238		334
239	sub coro(&) {	335	sub async_ext(&) {
240	my $cb = shift;	336	my $cb = shift;
241		337
242	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		339
249	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
251	});	342	});
252	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
259		350
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	352	or return;
262		353
		354	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	359	and return;
266		360
267	aio_fsync $fh	361	aio_fsync $fh
268	and return;	362	and return;
…		…
277	}	371	}
278		372
279	=back	373	=back
280		374
281	=cut	375	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		376
393	#############################################################################	377	#############################################################################
394		378
395	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
396		380
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	507	our @CB_MAP = ();
524		508
525	my %attachment;	509	my %attachment;
526		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
527	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
529		519
530	use sort 'stable';	520	use sort 'stable';
531		521
…		…
702	# object support	692	# object support
703		693
704	sub reattach {	694	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		699
708	my $registry = $obj->registry;	700	my $registry = $obj->registry;
709		701
710	@$registry = ();	702	@$registry = ();
711		703
…		…
804	or return;	796	or return;
805		797
806	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
808	or return;	800	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
810	}	802	}
811		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	806	return ($data, $av);
813	}	807	}
814		808
815	#############################################################################	809	#############################################################################
816	# command handling &c	810	# command handling &c
…		…
841	=cut	835	=cut
842		836
843	sub register_extcmd {	837	sub register_extcmd {
844	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
845		839
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
850	}	841	}
851		842
852	cf::player->attach (	843	cf::player->attach (
853	on_command => sub {	844	on_command => sub {
854	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
867		858
868	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
869		860
870	if (ref $msg) {	861	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	865	}
875	}	866	}
876	} else {	867	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		870
880	cf::override;	871	cf::override;
881	},	872	},
882	);	873	);
883		874
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	875	sub load_extension {
891	my ($path) = @_;	876	my ($path) = @_;
892		877
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	879	my $base = $1;
895	my $pkg = $1;	880	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
898		883
899	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
900		885
901	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
902	or die "$path: $!";	887	or die "$path: $!";
903		888
904	my $source =	889	my $source =
905	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
908	. "\n};\n1";	893	. "\n};\n1";
909		894
910	eval $source	895	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	897	: "extension disabled.\n";
913		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	899	warn $@;
915	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
916		901	exit 1;
917	# no strict 'refs';	902	}
918	# @{"$pkg\::ISA"} = ext::;	903	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	904	}
933		905
934	# remove commands	906	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	907	}
959		908
960	sub load_extensions {	909	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	911	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
967	}	916	}
968	}	917	}
969		918
970	#############################################################################	919	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		920
1008	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1009		922
1010	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1011		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1012	=head3 cf::player	931	=head3 cf::player
1013		932
1014	=over 4	933	=over 4
1015		934
1016	=item cf::player::exists $login	935	=item cf::player::find $login
1017		936
1018	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1019		938
1020	=cut	939	=cut
1021		940
1022	sub cf::player::exists($) {	941	sub playerdir($) {
1023	cf::player::find $_[0]	942	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
1025	}	1088	}
1026		1089
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1091
1029	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1030		1093
1031	=cut	1094	=cut
1032		1095
1033	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1035		1098
1036	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1037		1100
1038	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1039	}	1102	}
		1103
		1104	package cf;
1040		1105
1041	=back	1106	=back
1042		1107
1043		1108
1044	=head3 cf::map	1109	=head3 cf::map
…		…
1050	package cf::map;	1115	package cf::map;
1051		1116
1052	use Fcntl;	1117	use Fcntl;
1053	use Coro::AIO;	1118	use Coro::AIO;
1054		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1055	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1057		1126
1058	sub generate_random_map {	1127	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1130	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1270	}
1076		1271
1077	# and all this just because we cannot iterate over	1272	# and all this just because we cannot iterate over
1078	# all maps in C++...	1273	# all maps in C++...
1079	sub change_all_map_light {	1274	sub change_all_map_light {
1080	my ($change) = @_;	1275	my ($change) = @_;
1081		1276
1082	$_->change_map_light ($change) for values %cf::MAP;	1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
1083	}	1279	}
1084		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
1085	sub try_load_header($) {	1289	sub load_header_from($) {
1086	my ($path) = @_;	1290	my ($self, $path) = @_;
1087		1291
1088	utf8::encode $path;	1292	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1293	aio_open $path, O_RDONLY, 0
1090	or return;	1294	or return;
1091		1295
1092	my $map = cf::map::new	1296	$self->_load_header ($path)
1093	or return;	1297	or return;
1094		1298
1095	$map->load_header ($path)	1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
1096	or return;	1342	or return;
		1343	$self->prepare_orig;
		1344	}
1097		1345
1098	$map->{load_path} = $path;	1346	1
1099
1100	$map
1101	}	1347	}
1102		1348
		1349	sub find;
1103	sub find_map {	1350	sub find {
1104	my ($path, $origin) = @_;	1351	my ($path, $origin) = @_;
1105		1352
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1353	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1354
		1355	cf::lock_wait "map_find:$path";
		1356
1111	$cf::MAP{$key} || do {	1357	$cf::MAP{$path} || do {
1112	# do it the slow way	1358	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1359	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1360	or return;
1127		1361
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1362	$map->{last_save} = $cf::RUNTIME;
		1363
		1364	$map->load_header
		1365	or return;
1139		1366
1140	if ($map->should_reset) {	1367	if ($map->should_reset) {
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1370	$map->reset;
1142	$map = find_map $path;	1371	undef $guard;
		1372	return find $path;
1143	}	1373	}
1144		1374
1145	$cf::MAP{$key} = $map	1375	$cf::MAP{$path} = $map
1146	}	1376	}
1147	}	1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
1148		1381
1149	sub load {	1382	sub load {
1150	my ($self) = @_;	1383	my ($self) = @_;
1151		1384
		1385	my $path = $self->{path};
		1386	my $guard = cf::lock_acquire "map_load:$path";
		1387
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1388	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1389
1154	$self->in_memory (cf::MAP_LOADING);	1390	$self->in_memory (cf::MAP_LOADING);
1155		1391
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1392	$self->alloc;
		1393
		1394	$self->pre_load;
		1395
1159	$self->load_objects ($self->{load_path}, 1)	1396	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1397	or return;
1161		1398
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1400	if delete $self->{load_original};
1164		1401
1165	if (my $uniq = $path->uniq_path) {	1402	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1403	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1404	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1405	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1406	$self->_load_objects ($uniq, 0);
1170	}	1407	}
1171	}	1408	}
		1409
		1410	Coro::cede;
1172		1411
1173	# now do the right thing for maps	1412	# now do the right thing for maps
1174	$self->link_multipart_objects;	1413	$self->link_multipart_objects;
1175		1414
1176	if ($self->{path}->is_style_map) {	1415	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1416	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1417	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1418	$self->update_buttons;
		1419	Coro::cede;
1183	$self->set_darkness_map;	1420	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1421	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1422	unless $self->difficulty;
		1423	Coro::cede;
1186	$self->activate;	1424	$self->activate;
1187	}	1425	}
1188		1426
		1427	$self->post_load;
		1428
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1429	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1430	}
1191		1431
1192	sub load_map_sync {	1432	sub customise_for {
		1433	my ($self, $ob) = @_;
		1434
		1435	return find "~" . $ob->name . "/" . $self->{path}
		1436	if $self->per_player;
		1437
		1438	$self
		1439	}
		1440
		1441	# find and load all maps in the 3x3 area around a map
		1442	sub load_diag {
		1443	my ($map) = @_;
		1444
		1445	my @diag; # diagonal neighbours
		1446
		1447	for (0 .. 3) {
		1448	my $neigh = $map->tile_path ($_)
		1449	or next;
		1450	$neigh = find $neigh, $map
		1451	or next;
		1452	$neigh->load;
		1453
		1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1456	}
		1457
		1458	for (@diag) {
		1459	my $neigh = find @$_
		1460	or next;
		1461	$neigh->load;
		1462	}
		1463	}
		1464
		1465	sub find_sync {
1193	my ($path, $origin) = @_;	1466	my ($path, $origin) = @_;
1194		1467
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1468	cf::sync_job { find $path, $origin }
		1469	}
1196		1470
1197	cf::sync_job {	1471	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1472	my ($map) = @_;
1199	or return;	1473
		1474	cf::sync_job { $map->load };
		1475	}
		1476
		1477	our %MAP_PREFETCH;
		1478	our $MAP_PREFETCHER = undef;
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = normalise $path, $origin && $origin->{path};
		1484
		1485	if (my $map = $cf::MAP{$path}) {
		1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1487	}
		1488
		1489	undef $MAP_PREFETCH{$path};
		1490	$MAP_PREFETCHER ||= cf::async {
		1491	while (%MAP_PREFETCH) {
		1492	for my $path (keys %MAP_PREFETCH) {
		1493	my $map = find $path
		1494	or next;
1200	$map->load;	1495	$map->load;
1201	$map	1496
		1497	delete $MAP_PREFETCH{$path};
		1498	}
		1499	}
		1500	undef $MAP_PREFETCHER;
1202	}	1501	};
		1502	$MAP_PREFETCHER->prio (6);
		1503
		1504	()
1203	}	1505	}
1204		1506
1205	sub save {	1507	sub save {
1206	my ($self) = @_;	1508	my ($self) = @_;
1207		1509
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1511
1211	$self->{last_save} = $cf::RUNTIME;	1512	$self->{last_save} = $cf::RUNTIME;
1212		1513
1213	return unless $self->dirty;	1514	return unless $self->dirty;
1214		1515
		1516	my $save = $self->save_path; utf8::encode $save;
		1517	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1518
1215	$self->{load_path} = $save;	1519	$self->{load_path} = $save;
1216		1520
1217	return if $self->{deny_save};	1521	return if $self->{deny_save};
1218		1522
		1523	local $self->{last_access} = $self->last_access;#d#
		1524
		1525	cf::async {
		1526	$_->contr->save for $self->players;
		1527	};
		1528
1219	if ($uniq) {	1529	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1532	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1533	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1534	}
1225	}	1535	}
1226		1536
1227	sub swap_out {	1537	sub swap_out {
1228	my ($self) = @_;	1538	my ($self) = @_;
		1539
		1540	# save first because save cedes
		1541	$self->save;
		1542
		1543	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1544
1230	return if $self->players;	1545	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1546	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1547	return if $self->{deny_save};
1233		1548
1234	$self->save;
1235	$self->clear;	1549	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1550	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1551	}
1238		1552
1239	sub reset_at {	1553	sub reset_at {
1240	my ($self) = @_;	1554	my ($self) = @_;
1241		1555
1242	# TODO: safety, remove and allow resettable per-player maps	1556	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1558	return 1e99 if $self->{deny_reset};
1245		1559
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1562
1250	$time + $to	1563	$time + $to
1251	}	1564	}
1252		1565
1253	sub should_reset {	1566	sub should_reset {
1254	my ($self) = @_;	1567	my ($self) = @_;
1255		1568
1256	$self->reset_at <= $cf::RUNTIME	1569	$self->reset_at <= $cf::RUNTIME
1257	}	1570	}
1258		1571
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1572	sub reset {
1268	my ($self) = @_;	1573	my ($self) = @_;
1269		1574
		1575	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1576
1270	return if $self->players;	1577	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1578	return if $self->isa ("ext::map_per_player");#d#
1272		1579
1273	warn "resetting map ", $self->path;#d#	1580	warn "resetting map ", $self->path;#d#
1274		1581
1275	delete $cf::MAP{$self->path};	1582	delete $cf::MAP{$self->path};
		1583
		1584	$self->in_memory (cf::MAP_SWAPPED);
		1585	$self->clear;
1276		1586
1277	$_->clear_links_to ($self) for values %cf::MAP;	1587	$_->clear_links_to ($self) for values %cf::MAP;
1278		1588
1279	$self->unlink_save;	1589	$self->unlink_save;
1280	$self->destroy;	1590	$self->destroy;
1281	}	1591	}
1282		1592
1283	sub customise_for {	1593	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1594
1286	if ($map->per_player) {	1595	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1596	my ($self) = @_;
1288	}
1289		1597
1290	$map	1598	delete $cf::MAP{$self->path};
1291	}
1292		1599
1293	sub emergency_save {	1600	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1601
1296	warn "enter emergency map save\n";	1602	bless $self, "cf::map";
		1603	delete $self->{deny_reset};
		1604	$self->{deny_save} = 1;
		1605	$self->reset_timeout (1);
		1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1607
1298	cf::sync_job {	1608	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1609
1300	$_->save for values %cf::MAP;	1610	$self->reset; # polite request, might not happen
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of paths of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	s/\.map$//;
		1632	push @paths, $_;
1301	};	1633	}
1302		1634
1303	warn "end emergency map save\n";	1635	\@paths
1304	}	1636	}
1305		1637
1306	package cf;	1638	package cf;
1307		1639
1308	=back	1640	=back
1309		1641
		1642	=head3 cf::object
		1643
		1644	=cut
		1645
		1646	package cf::object;
		1647
		1648	=over 4
		1649
		1650	=item $ob->inv_recursive
		1651
		1652	Returns the inventory of the object _and_ their inventories, recursively.
		1653
		1654	=cut
		1655
		1656	sub inv_recursive_;
		1657	sub inv_recursive_ {
		1658	map { $_, inv_recursive_ $_->inv } @_
		1659	}
		1660
		1661	sub inv_recursive {
		1662	inv_recursive_ inv $_[0]
		1663	}
		1664
		1665	package cf;
		1666
		1667	=back
1310		1668
1311	=head3 cf::object::player	1669	=head3 cf::object::player
1312		1670
1313	=over 4	1671	=over 4
1314		1672
…		…
1350	(ref $cf::CFG{"may_$access"}	1708	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1709	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1710	: $cf::CFG{"may_$access"})
1353	}	1711	}
1354		1712
		1713	=item $player_object->enter_link
		1714
		1715	Freezes the player and moves him/her to a special map (C<{link}>).
		1716
		1717	The player should be reasonably safe there for short amounts of time. You
		1718	I<MUST> call C<leave_link> as soon as possible, though.
		1719
		1720	Will never block.
		1721
		1722	=item $player_object->leave_link ($map, $x, $y)
		1723
		1724	Moves the player out of the special C<{link}> map onto the specified
		1725	map. If the map is not valid (or omitted), the player will be moved back
		1726	to the location he/she was before the call to C<enter_link>, or, if that
		1727	fails, to the emergency map position.
		1728
		1729	Might block.
		1730
		1731	=cut
		1732
		1733	sub link_map {
		1734	unless ($LINK_MAP) {
		1735	$LINK_MAP = cf::map::find "{link}"
		1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1737	$LINK_MAP->load;
		1738	}
		1739
		1740	$LINK_MAP
		1741	}
		1742
1355	sub cf::object::player::enter_link {	1743	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1744	my ($self) = @_;
1357		1745
1358	return if $self->map == $LINK_MAP;	1746	$self->deactivate_recursive;
1359		1747
		1748	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1749
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1751	if $self->map;
1362		1752
1363	$self->enter_map ($LINK_MAP, 20, 20);	1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1754	}
1366		1755
1367	sub cf::object::player::leave_link {	1756	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1757	my ($self, $map, $x, $y) = @_;
1369		1758
1370	my $link_pos = delete $self->{_link_pos};	1759	my $link_pos = delete $self->{_link_pos};
1371		1760
1372	unless ($map) {	1761	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1762	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1763	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1764	$map = cf::map::find $map;
1378		1765
1379	unless ($map) {	1766	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1767	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1768	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1769	or die "FATAL: cannot load emergency map\n";
1383	}	1770	}
1384	}	1771	}
1385		1772
1386	($x, $y) = (-1, -1)	1773	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1776	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1777	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1778	if $x <=0 && $y <= 0;
1392		1779
1393	$map->load;	1780	$map->load;
		1781	$map->load_diag;
1394		1782
		1783	return unless $self->contr->active;
1395	$self->activate_recursive;	1784	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	1785	$self->enter_map ($map, $x, $y);
1397	}	1786	}
1398		1787
		1788	cf::player->attach (
		1789	on_logout => sub {
		1790	my ($pl) = @_;
		1791
		1792	# abort map switching before logout
		1793	if ($pl->ob->{_link_pos}) {
		1794	cf::sync_job {
		1795	$pl->ob->leave_link
		1796	};
		1797	}
		1798	},
		1799	on_login => sub {
		1800	my ($pl) = @_;
		1801
		1802	# try to abort aborted map switching on player login :)
		1803	# should happen only on crashes
		1804	if ($pl->ob->{_link_pos}) {
		1805	$pl->ob->enter_link;
		1806	(async {
		1807	# we need this sleep as the login has a concurrent enter_exit running
		1808	# and this sleep increases chances of the player not ending up in scorn
		1809	$pl->ob->reply (undef,
		1810	"There was an internal problem at your last logout, "
		1811	. "the server will try to bring you to your intended destination in a second.",
		1812	cf::NDI_RED);
		1813	Coro::Timer::sleep 1;
		1814	$pl->ob->leave_link;
		1815	})->prio (2);
		1816	}
		1817	},
		1818	);
		1819
1399	=item $player_object->goto_map ($map, $x, $y)	1820	=item $player_object->goto ($path, $x, $y)
1400		1821
1401	=cut	1822	=cut
1402		1823
1403	sub cf::object::player::goto_map {	1824	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1825	my ($self, $path, $x, $y) = @_;
1405		1826
1406	$self->enter_link;	1827	$self->enter_link;
1407		1828
1408	(Coro::async {	1829	(async {
1409	$path = new cf::path $path;
1410
1411	my $map = cf::map::find_map $path->as_string;	1830	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1831	$map = $map->customise_for ($self) if $map;
1413		1832
1414	warn "entering ", $map->path, " at ($x, $y)\n"	1833	# warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1834	# if $map;
		1835
		1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1837
1417	$self->leave_link ($map, $x, $y);	1838	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1839	})->prio (1);
1419	}	1840	}
1420		1841
…		…
1424		1845
1425	sub parse_random_map_params {	1846	sub parse_random_map_params {
1426	my ($spec) = @_;	1847	my ($spec) = @_;
1427		1848
1428	my $rmp = { # defaults	1849	my $rmp = { # defaults
1429	xsize => 10,	1850	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1851	ysize => (cf::rndm 15, 40),
		1852	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1853	#layout => string,
1431	};	1854	};
1432		1855
1433	for (split /\n/, $spec) {	1856	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1857	my ($k, $v) = split /\s+/, $_, 2;
1435		1858
…		…
1439	$rmp	1862	$rmp
1440	}	1863	}
1441		1864
1442	sub prepare_random_map {	1865	sub prepare_random_map {
1443	my ($exit) = @_;	1866	my ($exit) = @_;
		1867
		1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1869
1445	# all this does is basically replace the /! path by	1870	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1871	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1872	# that depends on the exit object
1448		1873
…		…
1457		1882
1458	$rmp->{random_seed} ||= $exit->random_seed;	1883	$rmp->{random_seed} ||= $exit->random_seed;
1459		1884
1460	my $data = cf::to_json $rmp;	1885	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1886	my $md5 = Digest::MD5::md5_hex $data;
		1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1888
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1890	aio_write $fh, 0, (length $data), $data, 0;
		1891	undef $fh;
		1892	aio_rename "$meta~", $meta;
1465		1893
1466	$exit->slaying ("?random/$md5");	1894	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1895	$exit->msg (undef);
1468	}	1896	}
1469	}	1897	}
…		…
1473		1901
1474	return unless $self->type == cf::PLAYER;	1902	return unless $self->type == cf::PLAYER;
1475		1903
1476	$self->enter_link;	1904	$self->enter_link;
1477		1905
1478	(Coro::async {	1906	(async {
		1907	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1908	unless (eval {
1480
1481	prepare_random_map $exit	1909	prepare_random_map $exit
1482	if $exit->slaying eq "/!";	1910	if $exit->slaying eq "/!";
1483		1911
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1912	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1486		1914
1487	1;	1915	1;
1488	}) {	1916	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1917	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1918	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1919	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1920	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1921
1494	warn "ERROR in enter_exit: $@";	1922	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1923	$self->leave_link;
1496	}	1924	}
…		…
1547	on_reply => sub {	1975	on_reply => sub {
1548	my ($ns, $msg) = @_;	1976	my ($ns, $msg) = @_;
1549		1977
1550	# this weird shuffling is so that direct followup queries	1978	# this weird shuffling is so that direct followup queries
1551	# get handled first	1979	# get handled first
1552	my $queue = delete $ns->{query_queue};	1980	my $queue = delete $ns->{query_queue}
		1981	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		1982
1554	(shift @$queue)->[1]->($msg);	1983	(shift @$queue)->[1]->($msg);
1555		1984
1556	push @{ $ns->{query_queue} }, @$queue;	1985	push @{ $ns->{query_queue} }, @$queue;
1557		1986
…		…
1563	}	1992	}
1564	}	1993	}
1565	},	1994	},
1566	);	1995	);
1567		1996
1568	=item $client->coro (\&cb)	1997	=item $client->async (\&cb)
1569		1998
1570	Create a new coroutine, running the specified callback. The coroutine will	1999	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2000	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2001	or loss of connection).
1573		2002
1574	=cut	2003	=cut
1575		2004
1576	sub cf::client::coro {	2005	sub cf::client::async {
1577	my ($self, $cb) = @_;	2006	my ($self, $cb) = @_;
1578		2007
1579	my $coro; $coro = async {	2008	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2009
1586	$coro->on_destroy (sub {	2010	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2011	delete $self->{_coro}{$coro+0};
1588	});	2012	});
1589		2013
…		…
1761		2185
1762	{	2186	{
1763	my $path = cf::localdir . "/database.pst";	2187	my $path = cf::localdir . "/database.pst";
1764		2188
1765	sub db_load() {	2189	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };	2190	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2191	}
1769		2192
1770	my $pid;	2193	my $pid;
1771		2194
1772	sub db_save() {	2195	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;	2196	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {	2197	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;	2198	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";	2199	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;	2200	rename "$path~", $path;
…		…
1785	sub db_sync() {	2207	sub db_sync() {
1786	db_save if $dirty;	2208	db_save if $dirty;
1787	undef $dirty;	2209	undef $dirty;
1788	}	2210	}
1789		2211
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2212	my $idle = Event->idle (
1791	db_sync;	2213	reentrant => 0,
		2214	min => 10,
		2215	max => 20,
		2216	repeat => 0,
		2217	data => WF_AUTOCANCEL,
		2218	cb => \&db_sync,
1792	});	2219	);
1793		2220
1794	sub db_dirty() {	2221	sub db_dirty() {
1795	$dirty = 1;	2222	$dirty = 1;
1796	$idle->start;	2223	$idle->start;
1797	}	2224	}
…		…
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2254	or return;
1828		2255
1829	local $/;	2256	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
1831	}	2271	}
1832		2272
1833	sub main {	2273	sub main {
1834	# we must not ever block the main coroutine	2274	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2275	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2276	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2277	(async {
1838	Event::one_event;	2278	Event::one_event;
1839	})->();	2279	})->prio (Coro::PRIO_MAX);
1840	};	2280	};
1841		2281
1842	cfg_load;	2282	cfg_load;
1843	db_load;	2283	db_load;
1844	load_extensions;	2284	load_extensions;
		2285
		2286	$TICK_WATCHER->start;
1845	Event::loop;	2287	Event::loop;
1846	}	2288	}
1847		2289
1848	#############################################################################	2290	#############################################################################
1849	# initialisation	2291	# initialisation and cleanup
		2292
		2293	# install some emergency cleanup handlers
		2294	BEGIN {
		2295	for my $signal (qw(INT HUP TERM)) {
		2296	Event->signal (
		2297	reentrant => 0,
		2298	data => WF_AUTOCANCEL,
		2299	signal => $signal,
		2300	prio => 0,
		2301	cb => sub {
		2302	cf::cleanup "SIG$signal";
		2303	},
		2304	);
		2305	}
		2306	}
		2307
		2308	sub emergency_save() {
		2309	my $freeze_guard = cf::freeze_mainloop;
		2310
		2311	warn "enter emergency perl save\n";
		2312
		2313	cf::sync_job {
		2314	# use a peculiar iteration method to avoid tripping on perl
		2315	# refcount bugs in for. also avoids problems with players
		2316	# and maps saved/destroyed asynchronously.
		2317	warn "begin emergency player save\n";
		2318	for my $login (keys %cf::PLAYER) {
		2319	my $pl = $cf::PLAYER{$login} or next;
		2320	$pl->valid or next;
		2321	$pl->save;
		2322	}
		2323	warn "end emergency player save\n";
		2324
		2325	warn "begin emergency map save\n";
		2326	for my $path (keys %cf::MAP) {
		2327	my $map = $cf::MAP{$path} or next;
		2328	$map->valid or next;
		2329	$map->save;
		2330	}
		2331	warn "end emergency map save\n";
		2332	};
		2333
		2334	warn "leave emergency perl save\n";
		2335	}
1850		2336
1851	sub reload() {	2337	sub reload() {
1852	# can/must only be called in main	2338	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2339	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2340	warn "can only reload from main coroutine";
1855	return;	2341	return;
1856	}	2342	}
1857		2343
1858	warn "reloading...";	2344	warn "reloading...";
1859		2345
1860	local $FREEZE = 1;	2346	warn "cancelling server ticker";
		2347	$TICK_WATCHER->cancel;
		2348
1861	cf::emergency_save;	2349	cf::emergency_save;
1862		2350
1863	eval {	2351	eval {
1864	# if anything goes wrong in here, we should simply crash as we already saved	2352	# if anything goes wrong in here, we should simply crash as we already saved
1865		2353
1866	# cancel all watchers	2354	warn "syncing database to disk";
		2355	cf::db_sync;
		2356
		2357	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2358	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2359	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2360	}
1870		2361
		2362	warn "flushing outstanding aio requests";
		2363	for (;;) {
		2364	IO::AIO::flush;
		2365	Coro::cede;
		2366	last unless IO::AIO::nreqs;
		2367	warn "iterate...";
		2368	}
		2369
1871	# cancel all extension coros	2370	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2371	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2372	%EXT_CORO = ();
1874		2373
1875	# unload all extensions	2374	warn "removing commands";
1876	for (@exts) {	2375	%COMMAND = ();
		2376
		2377	warn "removing ext commands";
		2378	%EXTCMD = ();
		2379
		2380	warn "unloading/nuking all extensions";
		2381	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2382	warn "... unloading $pkg";
1878	unload_extension $_;	2383
		2384	if (my $cb = $pkg->can ("unload")) {
		2385	eval {
		2386	$cb->($pkg);
		2387	1
		2388	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2389	}
1880		2390
		2391	warn "... nuking $pkg";
		2392	Symbol::delete_package $pkg;
		2393	}
		2394
1881	# unload all modules loaded from $LIBDIR	2395	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2396	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2397	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2398
1885	warn "removing <$k>";	2399	warn "... unloading $k";
1886	delete $INC{$k};	2400	delete $INC{$k};
1887		2401
1888	$k =~ s/\.pm$//;	2402	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2403	$k =~ s/\//::/g;
1890		2404
…		…
1893	}	2407	}
1894		2408
1895	Symbol::delete_package $k;	2409	Symbol::delete_package $k;
1896	}	2410	}
1897		2411
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2412	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2413	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2415
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2416	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2417	delete $INC{"cf.pm"};
1911		2418
1912	# don't, removes xs symbols, too,	2419	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2420	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2421	#Symbol::delete_package __PACKAGE__;
1915		2422
1916	# reload cf.pm	2423	warn "unload completed, starting to reload now";
		2424
1917	warn "reloading cf.pm";	2425	warn "reloading cf.pm";
1918	require cf;	2426	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2428
1921	# load config and database again	2429	warn "loading config and database again";
1922	cf::cfg_load;	2430	cf::cfg_load;
1923	cf::db_load;	2431	cf::db_load;
1924		2432
1925	# load extensions
1926	warn "load extensions";	2433	warn "loading extensions";
1927	cf::load_extensions;	2434	cf::load_extensions;
1928		2435
1929	# reattach attachments to objects	2436	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2437	_global_reattach;
		2438	warn "reattaching attachments to maps";
		2439	reattach $_ for values %MAP;
		2440
		2441	warn "restarting server ticker";
		2442
		2443	$TICK_WATCHER->start;
1932	};	2444	};
1933		2445
1934	if ($@) {	2446	if ($@) {
1935	warn $@;	2447	warn $@;
1936	warn "error while reloading, exiting.";	2448	warn "error while reloading, exiting.";
1937	exit 1;	2449	exit 1;
1938	}	2450	}
1939		2451
1940	warn "reloaded successfully";	2452	warn "reloaded";
1941	};	2453	};
1942		2454
1943	#############################################################################	2455	our $RELOAD_WATCHER; # used only during reload
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2456
1988	register_command "reload" => sub {	2457	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2458	my ($who, $arg) = @_;
1990		2459
1991	if ($who->flag (FLAG_WIZ)) {	2460	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2461	$who->message ("reloading server.");
		2462
		2463	# doing reload synchronously and two reloads happen back-to-back,
		2464	# coro crashes during coro_state_free->destroy here.
		2465
		2466	$RELOAD_WATCHER ||= Event->timer (
		2467	reentrant => 0,
		2468	after => 0,
		2469	data => WF_AUTOCANCEL,
		2470	cb => sub {
1993	reload;	2471	reload;
1994	$who->message ("end of reload.");	2472	undef $RELOAD_WATCHER;
		2473	},
		2474	);
1995	}	2475	}
1996	};	2476	};
1997		2477
1998	unshift @INC, $LIBDIR;	2478	unshift @INC, $LIBDIR;
		2479
		2480	my $bug_warning = 0;
1999		2481
2000	$TICK_WATCHER = Event->timer (	2482	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2483	reentrant => 0,
		2484	parked => 1,
2002	prio => 0,	2485	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2486	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2487	data => WF_AUTOCANCEL,
2005	cb => sub {	2488	cb => sub {
2006	unless ($FREEZE) {	2489	if ($Coro::current != $Coro::main) {
		2490	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2491	unless ++$bug_warning > 10;
		2492	return;
		2493	}
		2494
		2495	$NOW = Event::time;
		2496
2007	cf::server_tick; # one server iteration	2497	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2498	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2499	$NEXT_TICK += $TICK;
		2500
		2501	$WAIT_FOR_TICK->broadcast;
		2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2503
		2504	Event::sweep;
		2505	Coro::cede_notself;
		2506
		2507	# my $AFTER = Event::time;
		2508	# warn $AFTER - $NOW;#d#
2012		2509
2013	# if we are delayed by four ticks or more, skip them all	2510	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2512
2016	$TICK_WATCHER->at ($NEXT_TICK);	2513	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2514	$TICK_WATCHER->start;
2018	},	2515	},
2019	);	2516	);
2020		2517
2021	IO::AIO::max_poll_time $TICK * 0.2;	2518	IO::AIO::max_poll_time $TICK * 0.1;
2022		2519
2023	Event->io (	2520	undef $Coro::AIO::WATCHER;
		2521	$AIO_POLL_WATCHER = Event->io (
		2522	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2523	fd => IO::AIO::poll_fileno,
2025	poll => 'r',	2524	poll => 'r',
2026	prio => 5,	2525	prio => 6,
2027	data => WF_AUTOCANCEL,	2526	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,	2527	cb => \&IO::AIO::poll_cb,
2029	);	2528	);
2030		2529
2031	Event->timer (	2530	$WRITE_RUNTIME_WATCHER = Event->timer (
		2531	reentrant => 0,
2032	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
2033	after => 0,	2533	after => 1,
2034	interval => 10,	2534	interval => 10,
2035	cb => sub {	2535	prio => 6, # keep it lowest so it acts like a watchdog
2036	(Coro::unblock_sub {	2536	cb => Coro::unblock_sub {
2037	write_runtime	2537	write_runtime
2038	or warn "ERROR: unable to write runtime file: $!";	2538	or warn "ERROR: unable to write runtime file: $!";
2039	})->();
2040	},	2539	},
2041	);	2540	);
2042		2541
		2542	END { cf::emergency_save }
		2543
2043	1	2544	1
2044		2545

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