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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.187 by root, Sat Jan 20 21:06:52 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 3.4 ();
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
…		…
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	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1268	}
1076		1269
1077	# and all this just because we cannot iterate over	1270	# and all this just because we cannot iterate over
1078	# all maps in C++...	1271	# all maps in C++...
1079	sub change_all_map_light {	1272	sub change_all_map_light {
1080	my ($change) = @_;	1273	my ($change) = @_;
1081		1274
1082	$_->change_map_light ($change) for values %cf::MAP;	1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
1083	}	1277	}
1084		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
1085	sub try_load_header($) {	1287	sub load_header_from($) {
1086	my ($path) = @_;	1288	my ($self, $path) = @_;
1087		1289
1088	utf8::encode $path;	1290	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1291	aio_open $path, O_RDONLY, 0
1090	or return;	1292	or return;
1091		1293
1092	my $map = cf::map::new	1294	$self->_load_header ($path)
1093	or return;	1295	or return;
1094		1296
1095	$map->load_header ($path)	1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub load_header {
		1315	my ($self) = @_;
		1316
		1317	if ($self->load_temp) {
		1318	$self->last_access ((delete $self->{last_access})
		1319	|| $cf::RUNTIME); #d#
		1320	# safety
		1321	$self->{instantiate_time} = $cf::RUNTIME
		1322	if $self->{instantiate_time} > $cf::RUNTIME;
		1323	} else {
		1324	$self->load_orig
1096	or return;	1325	or return;
1097		1326
1098	$map->{load_path} = $path;	1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
1099		1332
1100	$map	1333	1
1101	}	1334	}
1102		1335
		1336	sub find;
1103	sub find_map {	1337	sub find {
1104	my ($path, $origin) = @_;	1338	my ($path, $origin) = @_;
1105		1339
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1340	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1341
		1342	cf::lock_wait "map_find:$path";
		1343
1111	$cf::MAP{$key} || do {	1344	$cf::MAP{$path} || do {
1112	# do it the slow way	1345	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1346	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;	1347	or return;
1127		1348
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);	1349	$map->{last_save} = $cf::RUNTIME;
		1350
		1351	$map->load_header
		1352	or return;
1139		1353
1140	if ($map->should_reset) {	1354	if ($map->should_reset) {
		1355	# doing this can freeze the server in a sync job, obviously
		1356	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1357	$map->reset;
		1358	undef $guard;
1142	$map = find_map $path;	1359	$map = find $path
		1360	or return;
1143	}	1361	}
1144		1362
1145	$cf::MAP{$key} = $map	1363	$cf::MAP{$path} = $map
1146	}	1364	}
1147	}	1365	}
1148		1366
1149	sub load {	1367	sub load {
1150	my ($self) = @_;	1368	my ($self) = @_;
1151		1369
		1370	my $path = $self->{path};
		1371	my $guard = cf::lock_acquire "map_load:$path";
		1372
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1373	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1374
1154	$self->in_memory (cf::MAP_LOADING);	1375	$self->in_memory (cf::MAP_LOADING);
1155		1376
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1377	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	1378	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1379	or return;
1161		1380
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1381	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1382	if delete $self->{load_original};
1164		1383
1165	if (my $uniq = $path->uniq_path) {	1384	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1385	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1386	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1387	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1388	$self->_load_objects ($uniq, 0);
1170	}	1389	}
1171	}	1390	}
		1391
		1392	Coro::cede;
1172		1393
1173	# now do the right thing for maps	1394	# now do the right thing for maps
1174	$self->link_multipart_objects;	1395	$self->link_multipart_objects;
1175		1396
1176	if ($self->{path}->is_style_map) {	1397	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1398	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1399	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1400	$self->update_buttons;
		1401	Coro::cede;
1183	$self->set_darkness_map;	1402	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1403	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1404	unless $self->difficulty;
		1405	Coro::cede;
1186	$self->activate;	1406	$self->activate;
1187	}	1407	}
1188		1408
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1409	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1410	}
1191		1411
1192	sub load_map_sync {	1412	sub customise_for {
		1413	my ($self, $ob) = @_;
		1414
		1415	return find "~" . $ob->name . "/" . $self->{path}
		1416	if $self->per_player;
		1417
		1418	$self
		1419	}
		1420
		1421	# find and load all maps in the 3x3 area around a map
		1422	sub load_diag {
		1423	my ($map) = @_;
		1424
		1425	my @diag; # diagonal neighbours
		1426
		1427	for (0 .. 3) {
		1428	my $neigh = $map->tile_path ($_)
		1429	or next;
		1430	$neigh = find $neigh, $map
		1431	or next;
		1432	$neigh->load;
		1433
		1434	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1435	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1436	}
		1437
		1438	for (@diag) {
		1439	my $neigh = find @$_
		1440	or next;
		1441	$neigh->load;
		1442	}
		1443	}
		1444
		1445	sub find_sync {
1193	my ($path, $origin) = @_;	1446	my ($path, $origin) = @_;
1194		1447
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1448	cf::sync_job { find $path, $origin }
		1449	}
1196		1450
1197	cf::sync_job {	1451	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1452	my ($map) = @_;
1199	or return;	1453
		1454	cf::sync_job { $map->load };
		1455	}
		1456
		1457	our %MAP_PREFETCH;
		1458	our $MAP_PREFETCHER = undef;
		1459
		1460	sub find_async {
		1461	my ($path, $origin) = @_;
		1462
		1463	$path = normalise $path, $origin && $origin->{path};
		1464
		1465	if (my $map = $cf::MAP{$path}) {
		1466	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1467	}
		1468
		1469	undef $MAP_PREFETCH{$path};
		1470	$MAP_PREFETCHER ||= cf::async {
		1471	while (%MAP_PREFETCH) {
		1472	for my $path (keys %MAP_PREFETCH) {
		1473	my $map = find $path
		1474	or next;
1200	$map->load;	1475	$map->load;
1201	$map	1476
		1477	delete $MAP_PREFETCH{$path};
		1478	}
		1479	}
		1480	undef $MAP_PREFETCHER;
1202	}	1481	};
		1482
		1483	()
1203	}	1484	}
1204		1485
1205	sub save {	1486	sub save {
1206	my ($self) = @_;	1487	my ($self) = @_;
1207		1488
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1489	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1490
1211	$self->{last_save} = $cf::RUNTIME;	1491	$self->{last_save} = $cf::RUNTIME;
1212		1492
1213	return unless $self->dirty;	1493	return unless $self->dirty;
1214		1494
		1495	my $save = $self->save_path; utf8::encode $save;
		1496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1497
1215	$self->{load_path} = $save;	1498	$self->{load_path} = $save;
1216		1499
1217	return if $self->{deny_save};	1500	return if $self->{deny_save};
1218		1501
		1502	local $self->{last_access} = $self->last_access;#d#
		1503
		1504	cf::async {
		1505	$_->contr->save for $self->players;
		1506	};
		1507
1219	if ($uniq) {	1508	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1509	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1510	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1511	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1512	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1513	}
1225	}	1514	}
1226		1515
1227	sub swap_out {	1516	sub swap_out {
1228	my ($self) = @_;	1517	my ($self) = @_;
		1518
		1519	# save first because save cedes
		1520	$self->save;
		1521
		1522	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1523
1230	return if $self->players;	1524	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1525	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1526	return if $self->{deny_save};
1233		1527
1234	$self->save;
1235	$self->clear;	1528	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1529	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1530	}
1238		1531
1239	sub reset_at {	1532	sub reset_at {
1240	my ($self) = @_;	1533	my ($self) = @_;
1241		1534
1242	# TODO: safety, remove and allow resettable per-player maps	1535	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1536	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1537	return 1e99 if $self->{deny_reset};
1245		1538
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1541
1250	$time + $to	1542	$time + $to
1251	}	1543	}
1252		1544
1253	sub should_reset {	1545	sub should_reset {
1254	my ($self) = @_;	1546	my ($self) = @_;
1255		1547
1256	$self->reset_at <= $cf::RUNTIME	1548	$self->reset_at <= $cf::RUNTIME
1257	}	1549	}
1258		1550
1259	sub unlink_save {
1260	my ($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 rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	1551	sub reset {
1281	my ($self) = @_;	1552	my ($self) = @_;
1282		1553
		1554	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1555
1283	return if $self->players;	1556	return if $self->players;
1284	return if $self->{path}{user_rel};#d#	1557	return if $self->isa ("ext::map_per_player");#d#
1285		1558
1286	warn "resetting map ", $self->path;#d#	1559	warn "resetting map ", $self->path;#d#
1287		1560
1288	delete $cf::MAP{$self->path};	1561	delete $cf::MAP{$self->path};
		1562
		1563	$self->in_memory (cf::MAP_SWAPPED);
		1564	$self->clear;
1289		1565
1290	$_->clear_links_to ($self) for values %cf::MAP;	1566	$_->clear_links_to ($self) for values %cf::MAP;
1291		1567
1292	$self->unlink_save;	1568	$self->unlink_save;
1293	$self->destroy;	1569	$self->destroy;
1294	}	1570	}
1295		1571
1296	sub customise_for {	1572	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1573
1299	if ($map->per_player) {	1574	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1575	my ($self) = @_;
1301	}
1302		1576
1303	$map	1577	delete $cf::MAP{$self->path};
1304	}
1305		1578
1306	sub emergency_save {	1579	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1580
1309	warn "enter emergency map save\n";	1581	bless $self, "cf::map";
		1582	delete $self->{deny_reset};
		1583	$self->{deny_save} = 1;
		1584	$self->reset_timeout (1);
		1585	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1586
1311	cf::sync_job {	1587	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1588
1313	$_->save for values %cf::MAP;	1589	$self->reset; # polite request, might not happen
		1590	}
		1591
		1592	=item cf::map::unique_maps
		1593
		1594	Returns an arrayref of paths of all shared maps that have
		1595	instantiated unique items. May block.
		1596
		1597	=cut
		1598
		1599	sub unique_maps() {
		1600	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1601	or return;
		1602
		1603	my @paths;
		1604
		1605	for (@$files) {
		1606	utf8::decode $_;
		1607	next if /\.pst$/;
		1608	next unless /^$PATH_SEP/o;
		1609
		1610	s/\.map$//;
		1611	push @paths, $_;
1314	};	1612	}
1315		1613
1316	warn "end emergency map save\n";	1614	\@paths
1317	}	1615	}
1318		1616
1319	package cf;	1617	package cf;
1320		1618
1321	=back	1619	=back
1322		1620
		1621	=head3 cf::object
		1622
		1623	=cut
		1624
		1625	package cf::object;
		1626
		1627	=over 4
		1628
		1629	=item $ob->inv_recursive
		1630
		1631	Returns the inventory of the object _and_ their inventories, recursively.
		1632
		1633	=cut
		1634
		1635	sub inv_recursive_;
		1636	sub inv_recursive_ {
		1637	map { $_, inv_recursive_ $_->inv } @_
		1638	}
		1639
		1640	sub inv_recursive {
		1641	inv_recursive_ inv $_[0]
		1642	}
		1643
		1644	package cf;
		1645
		1646	=back
1323		1647
1324	=head3 cf::object::player	1648	=head3 cf::object::player
1325		1649
1326	=over 4	1650	=over 4
1327		1651
…		…
1363	(ref $cf::CFG{"may_$access"}	1687	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1688	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1689	: $cf::CFG{"may_$access"})
1366	}	1690	}
1367		1691
		1692	=item $player_object->enter_link
		1693
		1694	Freezes the player and moves him/her to a special map (C<{link}>).
		1695
		1696	The player should be reasonably safe there for short amounts of time. You
		1697	I<MUST> call C<leave_link> as soon as possible, though.
		1698
		1699	Will never block.
		1700
		1701	=item $player_object->leave_link ($map, $x, $y)
		1702
		1703	Moves the player out of the special C<{link}> map onto the specified
		1704	map. If the map is not valid (or omitted), the player will be moved back
		1705	to the location he/she was before the call to C<enter_link>, or, if that
		1706	fails, to the emergency map position.
		1707
		1708	Might block.
		1709
		1710	=cut
		1711
		1712	sub link_map {
		1713	unless ($LINK_MAP) {
		1714	$LINK_MAP = cf::map::find "{link}"
		1715	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1716	$LINK_MAP->load;
		1717	}
		1718
		1719	$LINK_MAP
		1720	}
		1721
1368	sub cf::object::player::enter_link {	1722	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1723	my ($self) = @_;
1370		1724
1371	return if $self->map == $LINK_MAP;	1725	$self->deactivate_recursive;
1372		1726
		1727	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1728
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1729	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;	1730	if $self->map;
1375		1731
1376	$self->enter_map ($LINK_MAP, 20, 20);	1732	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1377	$self->deactivate_recursive;
1378	}	1733	}
1379		1734
1380	sub cf::object::player::leave_link {	1735	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1736	my ($self, $map, $x, $y) = @_;
1382		1737
1383	my $link_pos = delete $self->{_link_pos};	1738	my $link_pos = delete $self->{_link_pos};
1384		1739
1385	unless ($map) {	1740	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1741	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1742	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1743	$map = cf::map::find $map;
1391		1744
1392	unless ($map) {	1745	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1746	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1747	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1748	or die "FATAL: cannot load emergency map\n";
1396	}	1749	}
1397	}	1750	}
1398		1751
1399	($x, $y) = (-1, -1)	1752	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1755	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1756	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1757	if $x <=0 && $y <= 0;
1405		1758
1406	$map->load;	1759	$map->load;
		1760	$map->load_diag;
1407		1761
		1762	return unless $self->contr->active;
1408	$self->activate_recursive;	1763	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	1764	$self->enter_map ($map, $x, $y);
1410	}	1765	}
1411		1766
		1767	cf::player->attach (
		1768	on_logout => sub {
		1769	my ($pl) = @_;
		1770
		1771	# abort map switching before logout
		1772	if ($pl->ob->{_link_pos}) {
		1773	cf::sync_job {
		1774	$pl->ob->leave_link
		1775	};
		1776	}
		1777	},
		1778	on_login => sub {
		1779	my ($pl) = @_;
		1780
		1781	# try to abort aborted map switching on player login :)
		1782	# should happen only on crashes
		1783	if ($pl->ob->{_link_pos}) {
		1784	$pl->ob->enter_link;
		1785	(async {
		1786	# we need this sleep as the login has a concurrent enter_exit running
		1787	# and this sleep increases chances of the player not ending up in scorn
		1788	$pl->ob->reply (undef,
		1789	"There was an internal problem at your last logout, "
		1790	. "the server will try to bring you to your intended destination in a second.",
		1791	cf::NDI_RED);
		1792	Coro::Timer::sleep 1;
		1793	$pl->ob->leave_link;
		1794	})->prio (2);
		1795	}
		1796	},
		1797	);
		1798
1412	=item $player_object->goto_map ($map, $x, $y)	1799	=item $player_object->goto ($path, $x, $y)
1413		1800
1414	=cut	1801	=cut
1415		1802
1416	sub cf::object::player::goto_map {	1803	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1804	my ($self, $path, $x, $y) = @_;
1418		1805
1419	$self->enter_link;	1806	$self->enter_link;
1420		1807
1421	(Coro::async {	1808	(async {
1422	$path = new cf::path $path;
1423
1424	my $map = cf::map::find_map $path->as_string;	1809	my $map = cf::map::find $path;
1425	$map = $map->customise_for ($self) if $map;	1810	$map = $map->customise_for ($self) if $map;
1426		1811
1427	warn "entering ", $map->path, " at ($x, $y)\n"	1812	# warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1813	# if $map;
		1814
		1815	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429		1816
1430	$self->leave_link ($map, $x, $y);	1817	$self->leave_link ($map, $x, $y);
1431	})->prio (1);	1818	})->prio (1);
1432	}	1819	}
1433		1820
…		…
1437		1824
1438	sub parse_random_map_params {	1825	sub parse_random_map_params {
1439	my ($spec) = @_;	1826	my ($spec) = @_;
1440		1827
1441	my $rmp = { # defaults	1828	my $rmp = { # defaults
1442	xsize => 10,	1829	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	1830	ysize => (cf::rndm 15, 40),
		1831	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1832	#layout => string,
1444	};	1833	};
1445		1834
1446	for (split /\n/, $spec) {	1835	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	1836	my ($k, $v) = split /\s+/, $_, 2;
1448		1837
…		…
1452	$rmp	1841	$rmp
1453	}	1842	}
1454		1843
1455	sub prepare_random_map {	1844	sub prepare_random_map {
1456	my ($exit) = @_;	1845	my ($exit) = @_;
		1846
		1847	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		1848
1458	# all this does is basically replace the /! path by	1849	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	1850	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	1851	# that depends on the exit object
1461		1852
…		…
1470		1861
1471	$rmp->{random_seed} ||= $exit->random_seed;	1862	$rmp->{random_seed} ||= $exit->random_seed;
1472		1863
1473	my $data = cf::to_json $rmp;	1864	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	1865	my $md5 = Digest::MD5::md5_hex $data;
		1866	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1475		1867
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1868	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	1869	aio_write $fh, 0, (length $data), $data, 0;
		1870	undef $fh;
		1871	aio_rename "$meta~", $meta;
1478		1872
1479	$exit->slaying ("?random/$md5");	1873	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	1874	$exit->msg (undef);
1481	}	1875	}
1482	}	1876	}
…		…
1486		1880
1487	return unless $self->type == cf::PLAYER;	1881	return unless $self->type == cf::PLAYER;
1488		1882
1489	$self->enter_link;	1883	$self->enter_link;
1490		1884
1491	(Coro::async {	1885	(async {
		1886	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	1887	unless (eval {
1493
1494	prepare_random_map $exit	1888	prepare_random_map $exit
1495	if $exit->slaying eq "/!";	1889	if $exit->slaying eq "/!";
1496		1890
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1891	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1892	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1499		1893
1500	1;	1894	1;
1501	}) {	1895	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	1896	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	1897	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	1898	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	1899	cf::NDI_UNIQUE | cf::NDI_RED);
1506		1900
1507	warn "ERROR in enter_exit: $@";	1901	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	1902	$self->leave_link;
1509	}	1903	}
…		…
1560	on_reply => sub {	1954	on_reply => sub {
1561	my ($ns, $msg) = @_;	1955	my ($ns, $msg) = @_;
1562		1956
1563	# this weird shuffling is so that direct followup queries	1957	# this weird shuffling is so that direct followup queries
1564	# get handled first	1958	# get handled first
1565	my $queue = delete $ns->{query_queue};	1959	my $queue = delete $ns->{query_queue}
		1960	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		1961
1567	(shift @$queue)->[1]->($msg);	1962	(shift @$queue)->[1]->($msg);
1568		1963
1569	push @{ $ns->{query_queue} }, @$queue;	1964	push @{ $ns->{query_queue} }, @$queue;
1570		1965
…		…
1576	}	1971	}
1577	}	1972	}
1578	},	1973	},
1579	);	1974	);
1580		1975
1581	=item $client->coro (\&cb)	1976	=item $client->async (\&cb)
1582		1977
1583	Create a new coroutine, running the specified callback. The coroutine will	1978	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	1979	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	1980	or loss of connection).
1586		1981
1587	=cut	1982	=cut
1588		1983
1589	sub cf::client::coro {	1984	sub cf::client::async {
1590	my ($self, $cb) = @_;	1985	my ($self, $cb) = @_;
1591		1986
1592	my $coro; $coro = async {	1987	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		1988
1599	$coro->on_destroy (sub {	1989	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	1990	delete $self->{_coro}{$coro+0};
1601	});	1991	});
1602		1992
…		…
1774		2164
1775	{	2165	{
1776	my $path = cf::localdir . "/database.pst";	2166	my $path = cf::localdir . "/database.pst";
1777		2167
1778	sub db_load() {	2168	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };	2169	$DB = stat $path ? Storable::retrieve $path : { };
1781	}	2170	}
1782		2171
1783	my $pid;	2172	my $pid;
1784		2173
1785	sub db_save() {	2174	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;	2175	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {	2176	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;	2177	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";	2178	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;	2179	rename "$path~", $path;
…		…
1798	sub db_sync() {	2186	sub db_sync() {
1799	db_save if $dirty;	2187	db_save if $dirty;
1800	undef $dirty;	2188	undef $dirty;
1801	}	2189	}
1802		2190
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2191	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;	2192	db_sync;
1805	});	2193	});
1806		2194
1807	sub db_dirty() {	2195	sub db_dirty() {
1808	$dirty = 1;	2196	$dirty = 1;
…		…
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2227	open my $fh, "<:utf8", cf::confdir . "/config"
1840	or return;	2228	or return;
1841		2229
1842	local $/;	2230	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2231	*CFG = YAML::Syck::Load <$fh>;
		2232
		2233	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2234
		2235	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2236	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2237
		2238	if (exists $CFG{mlockall}) {
		2239	eval {
		2240	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2241	and die "WARNING: m(un)lockall failed: $!\n";
		2242	};
		2243	warn $@ if $@;
		2244	}
1844	}	2245	}
1845		2246
1846	sub main {	2247	sub main {
1847	# we must not ever block the main coroutine	2248	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2249	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2250	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2251	(async {
1851	Event::one_event;	2252	Event::one_event;
1852	})->();	2253	})->prio (Coro::PRIO_MAX);
1853	};	2254	};
1854		2255
1855	cfg_load;	2256	cfg_load;
1856	db_load;	2257	db_load;
1857	load_extensions;	2258	load_extensions;
		2259
		2260	$TICK_WATCHER->start;
1858	Event::loop;	2261	Event::loop;
1859	}	2262	}
1860		2263
1861	#############################################################################	2264	#############################################################################
1862	# initialisation	2265	# initialisation and cleanup
		2266
		2267	# install some emergency cleanup handlers
		2268	BEGIN {
		2269	for my $signal (qw(INT HUP TERM)) {
		2270	Event->signal (
		2271	data => WF_AUTOCANCEL,
		2272	signal => $signal,
		2273	cb => sub {
		2274	cf::cleanup "SIG$signal";
		2275	},
		2276	);
		2277	}
		2278	}
		2279
		2280	sub emergency_save() {
		2281	my $freeze_guard = cf::freeze_mainloop;
		2282
		2283	warn "enter emergency perl save\n";
		2284
		2285	cf::sync_job {
		2286	# use a peculiar iteration method to avoid tripping on perl
		2287	# refcount bugs in for. also avoids problems with players
		2288	# and maps saved/destroyed asynchronously.
		2289	warn "begin emergency player save\n";
		2290	for my $login (keys %cf::PLAYER) {
		2291	my $pl = $cf::PLAYER{$login} or next;
		2292	$pl->valid or next;
		2293	$pl->save;
		2294	}
		2295	warn "end emergency player save\n";
		2296
		2297	warn "begin emergency map save\n";
		2298	for my $path (keys %cf::MAP) {
		2299	my $map = $cf::MAP{$path} or next;
		2300	$map->valid or next;
		2301	$map->save;
		2302	}
		2303	warn "end emergency map save\n";
		2304	};
		2305
		2306	warn "leave emergency perl save\n";
		2307	}
1863		2308
1864	sub reload() {	2309	sub reload() {
1865	# can/must only be called in main	2310	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2311	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2312	warn "can only reload from main coroutine";
1868	return;	2313	return;
1869	}	2314	}
1870		2315
1871	warn "reloading...";	2316	warn "reloading...";
1872		2317
1873	local $FREEZE = 1;	2318	warn "cancelling server ticker";
		2319	$TICK_WATCHER->cancel;
		2320
1874	cf::emergency_save;	2321	cf::emergency_save;
1875		2322
1876	eval {	2323	eval {
1877	# if anything goes wrong in here, we should simply crash as we already saved	2324	# if anything goes wrong in here, we should simply crash as we already saved
1878		2325
1879	# cancel all watchers	2326	warn "syncing database to disk";
		2327	cf::db_sync;
		2328
		2329	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2330	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2331	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2332	}
1883		2333
		2334	warn "flushing outstanding aio requests";
		2335	for (;;) {
		2336	IO::AIO::flush;
		2337	Coro::cede;
		2338	last unless IO::AIO::nreqs;
		2339	warn "iterate...";
		2340	}
		2341
1884	# cancel all extension coros	2342	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2343	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2344	%EXT_CORO = ();
1887		2345
1888	# unload all extensions	2346	warn "removing commands";
1889	for (@exts) {	2347	%COMMAND = ();
		2348
		2349	warn "removing ext commands";
		2350	%EXTCMD = ();
		2351
		2352	warn "unloading/nuking all extensions";
		2353	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2354	warn "... unloading $pkg";
1891	unload_extension $_;	2355
		2356	if (my $cb = $pkg->can ("unload")) {
		2357	eval {
		2358	$cb->($pkg);
		2359	1
		2360	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2361	}
1893		2362
		2363	warn "... nuking $pkg";
		2364	Symbol::delete_package $pkg;
		2365	}
		2366
1894	# unload all modules loaded from $LIBDIR	2367	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2368	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2369	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2370
1898	warn "removing <$k>";	2371	warn "... unloading $k";
1899	delete $INC{$k};	2372	delete $INC{$k};
1900		2373
1901	$k =~ s/\.pm$//;	2374	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2375	$k =~ s/\//::/g;
1903		2376
…		…
1906	}	2379	}
1907		2380
1908	Symbol::delete_package $k;	2381	Symbol::delete_package $k;
1909	}	2382	}
1910		2383
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2384	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2385	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2386	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2387
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2388	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2389	delete $INC{"cf.pm"};
1924		2390
1925	# don't, removes xs symbols, too,	2391	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2392	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2393	#Symbol::delete_package __PACKAGE__;
1928		2394
1929	# reload cf.pm	2395	warn "unload completed, starting to reload now";
		2396
1930	warn "reloading cf.pm";	2397	warn "reloading cf.pm";
1931	require cf;	2398	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2399	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2400
1934	# load config and database again	2401	warn "loading config and database again";
1935	cf::cfg_load;	2402	cf::cfg_load;
1936	cf::db_load;	2403	cf::db_load;
1937		2404
1938	# load extensions
1939	warn "load extensions";	2405	warn "loading extensions";
1940	cf::load_extensions;	2406	cf::load_extensions;
1941		2407
1942	# reattach attachments to objects	2408	warn "reattaching attachments to objects/players";
1943	warn "reattach";
1944	_global_reattach;	2409	_global_reattach;
		2410	warn "reattaching attachments to maps";
		2411	reattach $_ for values %MAP;
		2412
		2413	warn "restarting server ticker";
		2414
		2415	$TICK_WATCHER->start;
1945	};	2416	};
1946		2417
1947	if ($@) {	2418	if ($@) {
1948	warn $@;	2419	warn $@;
1949	warn "error while reloading, exiting.";	2420	warn "error while reloading, exiting.";
1950	exit 1;	2421	exit 1;
1951	}	2422	}
1952		2423
1953	warn "reloaded successfully";	2424	warn "reloaded";
1954	};	2425	};
1955		2426
1956	#############################################################################	2427	our $RELOAD_WATCHER; # used only during reload
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}
1998
1999	register "<global>", __PACKAGE__;
2000		2428
2001	register_command "reload" => sub {	2429	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2430	my ($who, $arg) = @_;
2003		2431
2004	if ($who->flag (FLAG_WIZ)) {	2432	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");	2433	$who->message ("reloading server.");
		2434
		2435	# doing reload synchronously and two reloads happen back-to-back,
		2436	# coro crashes during coro_state_free->destroy here.
		2437
		2438	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2006	reload;	2439	reload;
2007	$who->message ("end of reload.");	2440	undef $RELOAD_WATCHER;
		2441	});
2008	}	2442	}
2009	};	2443	};
2010		2444
2011	unshift @INC, $LIBDIR;	2445	unshift @INC, $LIBDIR;
		2446
		2447	my $bug_warning = 0;
2012		2448
2013	$TICK_WATCHER = Event->timer (	2449	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2450	reentrant => 0,
		2451	parked => 1,
2015	prio => 0,	2452	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2453	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2454	data => WF_AUTOCANCEL,
2018	cb => sub {	2455	cb => sub {
2019	unless ($FREEZE) {	2456	if ($Coro::current != $Coro::main) {
		2457	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2458	unless ++$bug_warning > 10;
		2459	return;
		2460	}
		2461
		2462	$NOW = Event::time;
		2463
2020	cf::server_tick; # one server iteration	2464	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2465	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	2466	$NEXT_TICK += $TICK;
		2467
		2468	$WAIT_FOR_TICK->broadcast;
		2469	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2025		2470
2026	# if we are delayed by four ticks or more, skip them all	2471	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2472	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028		2473
2029	$TICK_WATCHER->at ($NEXT_TICK);	2474	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2031	},	2476	},
2032	);	2477	);
2033		2478
2034	IO::AIO::max_poll_time $TICK * 0.2;	2479	IO::AIO::max_poll_time $TICK * 0.2;
2035		2480
2036	Event->io (	2481	$AIO_POLL_WATCHER = Event->io (
2037	fd => IO::AIO::poll_fileno,	2482	fd => IO::AIO::poll_fileno,
2038	poll => 'r',	2483	poll => 'r',
2039	prio => 5,	2484	prio => 5,
2040	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,	2486	cb => \&IO::AIO::poll_cb,
2042	);	2487	);
2043		2488
2044	Event->timer (	2489	$WRITE_RUNTIME_WATCHER = Event->timer (
2045	data => WF_AUTOCANCEL,	2490	data => WF_AUTOCANCEL,
2046	after => 0,	2491	after => 1,
2047	interval => 10,	2492	interval => 10,
2048	cb => sub {	2493	prio => 6, # keep it lowest so it acts like a watchdog
2049	(Coro::unblock_sub {	2494	cb => Coro::unblock_sub {
2050	write_runtime	2495	write_runtime
2051	or warn "ERROR: unable to write runtime file: $!";	2496	or warn "ERROR: unable to write runtime file: $!";
2052	})->();
2053	},	2497	},
2054	);	2498	);
2055		2499
		2500	END { cf::emergency_save }
		2501
2056	1	2502	1
2057		2503

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