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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 1.202 by root, Mon Jan 29 20:16:28 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		87
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	88	sub cf::map::normalise;
78		89
79	#############################################################################	90	#############################################################################
80		91
81	=head2 GLOBAL VARIABLES	92	=head2 GLOBAL VARIABLES
82		93
…		…
106		117
107	=item %cf::CFG	118	=item %cf::CFG
108		119
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	120	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	121	from wherever your confdir points to.
		122
		123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		124
		125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		127	processing has been done. Call C<< ->wait >> on them to maximise the
		128	window of cpu time available, or simply to synchronise to the server tick.
111		129
112	=back	130	=back
113		131
114	=cut	132	=cut
115		133
…		…
119	utf8::encode $msg;	137	utf8::encode $msg;
120		138
121	$msg .= "\n"	139	$msg .= "\n"
122	unless $msg =~ /\n$/;	140	unless $msg =~ /\n$/;
123		141
124	LOG llevError, "cfperl: $msg";	142	LOG llevError, $msg;
125	};	143	};
126	}	144	}
127		145
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		165
148	$Event::DIED = sub {	166	$Event::DIED = sub {
149	warn "error in event callback: @_";	167	warn "error in event callback: @_";
150	};	168	};
151		169
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	170	=head2 UTILITY FUNCTIONS
157		171
158	=over 4	172	=over 4
159		173
		174	=item dumpval $ref
		175
160	=cut	176	=cut
		177
		178	sub dumpval {
		179	eval {
		180	local $SIG{__DIE__};
		181	my $d;
		182	if (1) {
		183	$d = new Data::Dumper([$_[0]], ["*var"]);
		184	$d->Terse(1);
		185	$d->Indent(2);
		186	$d->Quotekeys(0);
		187	$d->Useqq(1);
		188	#$d->Bless(...);
		189	$d->Seen($_[1]) if @_ > 1;
		190	$d = $d->Dump();
		191	}
		192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		193	$d
		194	} || "[unable to dump $_[0]: '$@']";
		195	}
161		196
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	197	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		198
164	=item $ref = cf::from_json $json	199	=item $ref = cf::from_json $json
165		200
…		…
180		215
181	sub to_json($) {	216	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	218	JSON::Syck::Dump $_[0]
184	}	219	}
		220
		221	=item cf::lock_wait $string
		222
		223	Wait until the given lock is available. See cf::lock_acquire.
		224
		225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	$WRITE_RUNTIME_WATCHER->start;
		269	};
		270	$WRITE_RUNTIME_WATCHER->stop;
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
185		284
186	=item cf::sync_job { BLOCK }	285	=item cf::sync_job { BLOCK }
187		286
188	The design of crossfire+ requires that the main coro ($Coro::main) is	287	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	288	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	302	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	303	# till the operation succeeds, freezing the server :/
205		304
206	# TODO: use suspend/resume instead	305	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	306	# (but this is cancel-safe)
208	local $FREEZE = 1;	307	my $freeze_guard = freeze_mainloop;
209		308
210	my $busy = 1;	309	my $busy = 1;
211	my @res;	310	my @res;
212		311
213	(Coro::async {	312	(async {
214	@res = eval { $job->() };	313	@res = eval { $job->() };
215	warn $@ if $@;	314	warn $@ if $@;
216	undef $busy;	315	undef $busy;
217	})->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
218		317
219	while ($busy) {	318	while ($busy) {
220	Coro::cede_notself;	319	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	320	}
223		321
224	wantarray ? @res : $res[0]	322	wantarray ? @res : $res[0]
225	} else {	323	} else {
226	# we are in another coroutine, how wonderful, everything just works	324	# we are in another coroutine, how wonderful, everything just works
227		325
228	$job->()	326	$job->()
229	}	327	}
230	}	328	}
231		329
232	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
233		331
234	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
236		334
237	=cut	335	=cut
238		336
239	sub coro(&) {	337	sub async_ext(&) {
240	my $cb = shift;	338	my $cb = shift;
241		339
242	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		341
249	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
251	});	344	});
252	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	351	my $runtime = cf::localdir . "/runtime";
259		352
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	354	or return;
262		355
		356	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	361	and return;
266		362
267	aio_fsync $fh	363	aio_fsync $fh
268	and return;	364	and return;
…		…
277	}	373	}
278		374
279	=back	375	=back
280		376
281	=cut	377	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		378
393	#############################################################################	379	#############################################################################
394		380
395	=head2 ATTACHABLE OBJECTS	381	=head2 ATTACHABLE OBJECTS
396		382
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	509	our @CB_MAP = ();
524		510
525	my %attachment;	511	my %attachment;
526		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
527	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
529		521
530	use sort 'stable';	522	use sort 'stable';
531		523
…		…
702	# object support	694	# object support
703		695
704	sub reattach {	696	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		701
708	my $registry = $obj->registry;	702	my $registry = $obj->registry;
709		703
710	@$registry = ();	704	@$registry = ();
711		705
…		…
782	}	776	}
783	} else {	777	} else {
784	aio_unlink $filename;	778	aio_unlink $filename;
785	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
786	}	780	}
		781
		782	#d##TODO# nuke non .map-files if exist
		783	if ($filename =~ s/\.map$//) {
		784	aio_unlink $filename;
		785	aio_unlink "$filename.pst";
		786	}
787	}	787	}
788	}	788	}
789		789
790	sub object_freezer_as_string {	790	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	791	my ($rdata, $objs) = @_;
…		…
797		797
798	sub object_thawer_load {	798	sub object_thawer_load {
799	my ($filename) = @_;	799	my ($filename) = @_;
800		800
801	my ($data, $av);	801	my ($data, $av);
		802
		803	#d#TODO remove .map if file does not exist
		804	aio_stat $filename and $filename =~ s/\.map$//;
802		805
803	(aio_load $filename, $data) >= 0	806	(aio_load $filename, $data) >= 0
804	or return;	807	or return;
805		808
806	unless (aio_stat "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
808	or return;	811	or return;
809	$av = eval { (Storable::thaw $av)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
810	}	813	}
811		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	817	return ($data, $av);
813	}	818	}
814		819
815	#############################################################################	820	#############################################################################
816	# command handling &c	821	# command handling &c
…		…
841	=cut	846	=cut
842		847
843	sub register_extcmd {	848	sub register_extcmd {
844	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
845		850
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
850	}	852	}
851		853
852	cf::player->attach (	854	cf::player->attach (
853	on_command => sub {	855	on_command => sub {
854	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
867		869
868	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
869		871
870	if (ref $msg) {	872	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	876	}
875	}	877	}
876	} else {	878	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		881
880	cf::override;	882	cf::override;
881	},	883	},
882	);	884	);
883		885
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	886	sub load_extension {
891	my ($path) = @_;	887	my ($path) = @_;
892		888
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	890	my $base = $1;
895	my $pkg = $1;	891	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
898		894
899	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
900		896
901	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
902	or die "$path: $!";	898	or die "$path: $!";
903		899
904	my $source =	900	my $source =
905	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
908	. "\n};\n1";	904	. "\n};\n1";
909		905
910	eval $source	906	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	908	: "extension disabled.\n";
913		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	910	warn $@;
915	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
916		912	exit 1;
917	# no strict 'refs';	913	}
918	# @{"$pkg\::ISA"} = ext::;	914	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	# }	915	}
933		916
934	# remove commands	917	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	}	918	}
959		919
960	sub load_extensions {	920	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	922	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
967	}	927	}
968	}	928	}
969		929
970	#############################################################################	930	#############################################################################
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		931
1008	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1009		933
1010	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1011		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1012	=head3 cf::player	942	=head3 cf::player
1013		943
1014	=over 4	944	=over 4
1015		945
1016	=item cf::player::exists $login	946	=item cf::player::find $login
1017		947
1018	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1019		949
1020	=cut	950	=cut
1021		951
1022	sub cf::player::exists($) {	952	sub playerdir($) {
1023	cf::player::find $_[0]	953	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
1025	}	1100	}
1026		1101
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1103
1029	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1030		1105
1031	=cut	1106	=cut
1032		1107
1033	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1035		1110
1036	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1037		1112
1038	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1039	}	1114	}
		1115
		1116	package cf;
1040		1117
1041	=back	1118	=back
1042		1119
1043		1120
1044	=head3 cf::map	1121	=head3 cf::map
…		…
1050	package cf::map;	1127	package cf::map;
1051		1128
1052	use Fcntl;	1129	use Fcntl;
1053	use Coro::AIO;	1130	use Coro::AIO;
1054		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1055	our $MAX_RESET = 7200;	1136	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1137	our $DEFAULT_RESET = 3000;
1057		1138
1058	sub generate_random_map {	1139	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1142	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1284	}
1076		1285
1077	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1078	# all maps in C++...	1287	# all maps in C++...
1079	sub change_all_map_light {	1288	sub change_all_map_light {
1080	my ($change) = @_;	1289	my ($change) = @_;
1081		1290
1082	$_->change_map_light ($change) for values %cf::MAP;	1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
1083	}	1293	}
1084		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301
		1302	#d#TODO remove .map and also nuke
		1303	$save =~ s/\.map// or return;#d#
		1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1306	}
		1307
1085	sub try_load_header($) {	1308	sub load_header_from($) {
1086	my ($path) = @_;	1309	my ($self, $path) = @_;
1087		1310
1088	utf8::encode $path;	1311	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1312	#aio_open $path, O_RDONLY, 0
		1313	# or return;
		1314
		1315	$self->_load_header ($path)
1090	or return;	1316	or return;
1091		1317
1092	my $map = cf::map::new	1318	$self->{load_path} = $path;
		1319
		1320	1
		1321	}
		1322
		1323	sub load_header_orig {
		1324	my ($self) = @_;
		1325
		1326	$self->load_header_from ($self->load_path)
		1327	}
		1328
		1329	sub load_header_temp {
		1330	my ($self) = @_;
		1331
		1332	$self->load_header_from ($self->save_path)
		1333	}
		1334
		1335	sub prepare_temp {
		1336	my ($self) = @_;
		1337
		1338	$self->last_access ((delete $self->{last_access})
		1339	|| $cf::RUNTIME); #d#
		1340	# safety
		1341	$self->{instantiate_time} = $cf::RUNTIME
		1342	if $self->{instantiate_time} > $cf::RUNTIME;
		1343	}
		1344
		1345	sub prepare_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->{load_original} = 1;
		1349	$self->{instantiate_time} = $cf::RUNTIME;
		1350	$self->last_access ($cf::RUNTIME);
		1351	$self->instantiate;
		1352	}
		1353
		1354	sub load_header {
		1355	my ($self) = @_;
		1356
		1357	if ($self->load_header_temp) {
		1358	$self->prepare_temp;
		1359	} else {
		1360	$self->load_header_orig
1093	or return;	1361	or return;
		1362	$self->prepare_orig;
		1363	}
1094		1364
1095	$map->load_header ($path)	1365	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1366	}
1102		1367
		1368	sub find;
1103	sub find_map {	1369	sub find {
1104	my ($path, $origin) = @_;	1370	my ($path, $origin) = @_;
1105		1371
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1372	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1373
		1374	cf::lock_wait "map_find:$path";
		1375
1111	$cf::MAP{$key} || do {	1376	$cf::MAP{$path} || do {
1112	# do it the slow way	1377	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1378	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;	1379	or return;
1127		1380
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);	1381	$map->{last_save} = $cf::RUNTIME;
1139		1382
1140	if ($map->should_reset) {	1383	$map->load_header
		1384	or return;
		1385
		1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1387	# doing this can freeze the server in a sync job, obviously
		1388	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1389	$map->reset;
1142	$map = find_map $path;	1390	undef $guard;
		1391	return find $path;
1143	}	1392	}
1144		1393
1145	$cf::MAP{$key} = $map	1394	$cf::MAP{$path} = $map
1146	}	1395	}
1147	}	1396	}
		1397
		1398	sub pre_load { }
		1399	sub post_load { }
1148		1400
1149	sub load {	1401	sub load {
1150	my ($self) = @_;	1402	my ($self) = @_;
1151		1403
		1404	local $self->{deny_reset} = 1; # loading can take a long time
		1405
		1406	my $path = $self->{path};
		1407	my $guard = cf::lock_acquire "map_load:$path";
		1408
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1409	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1410
1154	$self->in_memory (cf::MAP_LOADING);	1411	$self->in_memory (cf::MAP_LOADING);
1155		1412
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1413	$self->alloc;
		1414
		1415	$self->pre_load;
		1416
1159	$self->load_objects ($self->{load_path}, 1)	1417	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1418	or return;
1161		1419
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1421	if delete $self->{load_original};
1164		1422
1165	if (my $uniq = $path->uniq_path) {	1423	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1424	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1425	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1426	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1427	$self->_load_objects ($uniq, 0);
1170	}	1428	}
1171	}	1429	}
		1430
		1431	Coro::cede;
1172		1432
1173	# now do the right thing for maps	1433	# now do the right thing for maps
1174	$self->link_multipart_objects;	1434	$self->link_multipart_objects;
1175		1435
1176	if ($self->{path}->is_style_map) {	1436	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1437	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1438	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1439	$self->update_buttons;
		1440	Coro::cede;
1183	$self->set_darkness_map;	1441	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1442	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1443	unless $self->difficulty;
		1444	Coro::cede;
1186	$self->activate;	1445	$self->activate;
1187	}	1446	}
1188		1447
		1448	$self->post_load;
		1449
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1450	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1451	}
1191		1452
1192	sub load_map_sync {	1453	sub customise_for {
		1454	my ($self, $ob) = @_;
		1455
		1456	return find "~" . $ob->name . "/" . $self->{path}
		1457	if $self->per_player;
		1458
		1459	$self
		1460	}
		1461
		1462	# find and load all maps in the 3x3 area around a map
		1463	sub load_diag {
		1464	my ($map) = @_;
		1465
		1466	my @diag; # diagonal neighbours
		1467
		1468	for (0 .. 3) {
		1469	my $neigh = $map->tile_path ($_)
		1470	or next;
		1471	$neigh = find $neigh, $map
		1472	or next;
		1473	$neigh->load;
		1474
		1475	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1476	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1477	}
		1478
		1479	for (@diag) {
		1480	my $neigh = find @$_
		1481	or next;
		1482	$neigh->load;
		1483	}
		1484	}
		1485
		1486	sub find_sync {
1193	my ($path, $origin) = @_;	1487	my ($path, $origin) = @_;
1194		1488
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1489	cf::sync_job { find $path, $origin }
		1490	}
1196		1491
1197	cf::sync_job {	1492	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1493	my ($map) = @_;
1199	or return;	1494
		1495	cf::sync_job { $map->load };
		1496	}
		1497
		1498	our %MAP_PREFETCH;
		1499	our $MAP_PREFETCHER = undef;
		1500
		1501	sub find_async {
		1502	my ($path, $origin) = @_;
		1503
		1504	$path = normalise $path, $origin && $origin->{path};
		1505
		1506	if (my $map = $cf::MAP{$path}) {
		1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1508	}
		1509
		1510	undef $MAP_PREFETCH{$path};
		1511	$MAP_PREFETCHER ||= cf::async {
		1512	while (%MAP_PREFETCH) {
		1513	for my $path (keys %MAP_PREFETCH) {
		1514	my $map = find $path
		1515	or next;
1200	$map->load;	1516	$map->load;
1201	$map	1517
		1518	delete $MAP_PREFETCH{$path};
		1519	}
		1520	}
		1521	undef $MAP_PREFETCHER;
1202	}	1522	};
		1523	$MAP_PREFETCHER->prio (6);
		1524
		1525	()
1203	}	1526	}
1204		1527
1205	sub save {	1528	sub save {
1206	my ($self) = @_;	1529	my ($self) = @_;
1207		1530
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1531	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1532
1211	$self->{last_save} = $cf::RUNTIME;	1533	$self->{last_save} = $cf::RUNTIME;
1212		1534
1213	return unless $self->dirty;	1535	return unless $self->dirty;
1214		1536
		1537	my $save = $self->save_path; utf8::encode $save;
		1538	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1539
1215	$self->{load_path} = $save;	1540	$self->{load_path} = $save;
1216		1541
1217	return if $self->{deny_save};	1542	return if $self->{deny_save};
1218		1543
		1544	local $self->{last_access} = $self->last_access;#d#
		1545
		1546	cf::async {
		1547	$_->contr->save for $self->players;
		1548	};
		1549
1219	if ($uniq) {	1550	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1553	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1554	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1555	}
1225	}	1556	}
1226		1557
1227	sub swap_out {	1558	sub swap_out {
1228	my ($self) = @_;	1559	my ($self) = @_;
		1560
		1561	# save first because save cedes
		1562	$self->save;
		1563
		1564	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1565
1230	return if $self->players;	1566	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1567	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1568	return if $self->{deny_save};
1233		1569
1234	$self->save;
1235	$self->clear;	1570	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1571	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1572	}
1238		1573
1239	sub reset_at {	1574	sub reset_at {
1240	my ($self) = @_;	1575	my ($self) = @_;
1241		1576
1242	# TODO: safety, remove and allow resettable per-player maps	1577	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1579	return 1e99 if $self->{deny_reset};
1245		1580
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1583
1250	$time + $to	1584	$time + $to
1251	}	1585	}
1252		1586
1253	sub should_reset {	1587	sub should_reset {
1254	my ($self) = @_;	1588	my ($self) = @_;
1255		1589
1256	$self->reset_at <= $cf::RUNTIME	1590	$self->reset_at <= $cf::RUNTIME
1257	}	1591	}
1258		1592
1259	sub unlink_save {
1260	my ($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	$self->save;
1278	}
1279
1280	sub reset {	1593	sub reset {
1281	my ($self) = @_;	1594	my ($self) = @_;
1282		1595
		1596	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1597
1283	return if $self->players;	1598	return if $self->players;
1284	return if $self->{path}{user_rel};#d#	1599	return if $self->isa ("ext::map_per_player");#d#
1285		1600
1286	warn "resetting map ", $self->path;#d#	1601	warn "resetting map ", $self->path;#d#
1287		1602
1288	delete $cf::MAP{$self->path};	1603	delete $cf::MAP{$self->path};
		1604
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	$self->clear;
1289		1607
1290	$_->clear_links_to ($self) for values %cf::MAP;	1608	$_->clear_links_to ($self) for values %cf::MAP;
1291		1609
1292	$self->unlink_save;	1610	$self->unlink_save;
1293	$self->destroy;	1611	$self->destroy;
1294	}	1612	}
1295		1613
1296	sub customise_for {	1614	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1615
1299	if ($map->per_player) {	1616	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1617	my ($self) = @_;
1301	}
1302		1618
1303	$map	1619	delete $cf::MAP{$self->path};
1304	}
1305		1620
1306	sub emergency_save {	1621	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1622
1309	warn "enter emergency map save\n";	1623	bless $self, "cf::map";
		1624	delete $self->{deny_reset};
		1625	$self->{deny_save} = 1;
		1626	$self->reset_timeout (1);
		1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1628
1311	cf::sync_job {	1629	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1630
1313	$_->save for values %cf::MAP;	1631	$self->reset; # polite request, might not happen
		1632	}
		1633
		1634	=item cf::map::unique_maps
		1635
		1636	Returns an arrayref of paths of all shared maps that have
		1637	instantiated unique items. May block.
		1638
		1639	=cut
		1640
		1641	sub unique_maps() {
		1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1643	or return;
		1644
		1645	my @paths;
		1646
		1647	for (@$files) {
		1648	utf8::decode $_;
		1649	next if /\.pst$/;
		1650	next unless /^$PATH_SEP/o;
		1651
		1652	push @paths, cf::map::normalise $_;
1314	};	1653	}
1315		1654
1316	warn "end emergency map save\n";	1655	\@paths
1317	}	1656	}
1318		1657
1319	package cf;	1658	package cf;
1320		1659
1321	=back	1660	=back
1322		1661
		1662	=head3 cf::object
		1663
		1664	=cut
		1665
		1666	package cf::object;
		1667
		1668	=over 4
		1669
		1670	=item $ob->inv_recursive
		1671
		1672	Returns the inventory of the object _and_ their inventories, recursively.
		1673
		1674	=cut
		1675
		1676	sub inv_recursive_;
		1677	sub inv_recursive_ {
		1678	map { $_, inv_recursive_ $_->inv } @_
		1679	}
		1680
		1681	sub inv_recursive {
		1682	inv_recursive_ inv $_[0]
		1683	}
		1684
		1685	package cf;
		1686
		1687	=back
1323		1688
1324	=head3 cf::object::player	1689	=head3 cf::object::player
1325		1690
1326	=over 4	1691	=over 4
1327		1692
…		…
1363	(ref $cf::CFG{"may_$access"}	1728	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1729	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1730	: $cf::CFG{"may_$access"})
1366	}	1731	}
1367		1732
		1733	=item $player_object->enter_link
		1734
		1735	Freezes the player and moves him/her to a special map (C<{link}>).
		1736
		1737	The player should be reasonably safe there for short amounts of time. You
		1738	I<MUST> call C<leave_link> as soon as possible, though.
		1739
		1740	Will never block.
		1741
		1742	=item $player_object->leave_link ($map, $x, $y)
		1743
		1744	Moves the player out of the special C<{link}> map onto the specified
		1745	map. If the map is not valid (or omitted), the player will be moved back
		1746	to the location he/she was before the call to C<enter_link>, or, if that
		1747	fails, to the emergency map position.
		1748
		1749	Might block.
		1750
		1751	=cut
		1752
		1753	sub link_map {
		1754	unless ($LINK_MAP) {
		1755	$LINK_MAP = cf::map::find "{link}"
		1756	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1757	$LINK_MAP->load;
		1758	}
		1759
		1760	$LINK_MAP
		1761	}
		1762
1368	sub cf::object::player::enter_link {	1763	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1764	my ($self) = @_;
1370		1765
1371	return if $self->map == $LINK_MAP;	1766	$self->deactivate_recursive;
1372		1767
		1768	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1769
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;	1771	if $self->map;
1375		1772
1376	$self->enter_map ($LINK_MAP, 20, 20);	1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1377	$self->deactivate_recursive;
1378	}	1774	}
1379		1775
1380	sub cf::object::player::leave_link {	1776	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1777	my ($self, $map, $x, $y) = @_;
1382		1778
1383	my $link_pos = delete $self->{_link_pos};	1779	my $link_pos = delete $self->{_link_pos};
1384		1780
1385	unless ($map) {	1781	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1782	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1783	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1784	$map = cf::map::find $map;
1391		1785
1392	unless ($map) {	1786	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1787	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1788	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1789	or die "FATAL: cannot load emergency map\n";
1396	}	1790	}
1397	}	1791	}
1398		1792
1399	($x, $y) = (-1, -1)	1793	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1796	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1797	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1798	if $x <=0 && $y <= 0;
1405		1799
1406	$map->load;	1800	$map->load;
		1801	$map->load_diag;
1407		1802
		1803	return unless $self->contr->active;
1408	$self->activate_recursive;	1804	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	1805	$self->enter_map ($map, $x, $y);
1410	}	1806	}
1411		1807
		1808	cf::player->attach (
		1809	on_logout => sub {
		1810	my ($pl) = @_;
		1811
		1812	# abort map switching before logout
		1813	if ($pl->ob->{_link_pos}) {
		1814	cf::sync_job {
		1815	$pl->ob->leave_link
		1816	};
		1817	}
		1818	},
		1819	on_login => sub {
		1820	my ($pl) = @_;
		1821
		1822	# try to abort aborted map switching on player login :)
		1823	# should happen only on crashes
		1824	if ($pl->ob->{_link_pos}) {
		1825	$pl->ob->enter_link;
		1826	(async {
		1827	# we need this sleep as the login has a concurrent enter_exit running
		1828	# and this sleep increases chances of the player not ending up in scorn
		1829	$pl->ob->reply (undef,
		1830	"There was an internal problem at your last logout, "
		1831	. "the server will try to bring you to your intended destination in a second.",
		1832	cf::NDI_RED);
		1833	Coro::Timer::sleep 1;
		1834	$pl->ob->leave_link;
		1835	})->prio (2);
		1836	}
		1837	},
		1838	);
		1839
1412	=item $player_object->goto_map ($map, $x, $y)	1840	=item $player_object->goto ($path, $x, $y)
1413		1841
1414	=cut	1842	=cut
1415		1843
1416	sub cf::object::player::goto_map {	1844	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1845	my ($self, $path, $x, $y) = @_;
1418		1846
1419	$self->enter_link;	1847	$self->enter_link;
1420		1848
1421	(Coro::async {	1849	(async {
1422	$path = new cf::path $path;	1850	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	1851	my $map = cf::map::find $path;
1425	$map = $map->customise_for ($self) if $map;	1852	$map = $map->customise_for ($self) if $map;
1426
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1853	$map
		1854	} or
		1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429		1856
1430	$self->leave_link ($map, $x, $y);	1857	$self->leave_link ($map, $x, $y);
1431	})->prio (1);	1858	})->prio (1);
1432	}	1859	}
1433		1860
…		…
1437		1864
1438	sub parse_random_map_params {	1865	sub parse_random_map_params {
1439	my ($spec) = @_;	1866	my ($spec) = @_;
1440		1867
1441	my $rmp = { # defaults	1868	my $rmp = { # defaults
1442	xsize => 10,	1869	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	1870	ysize => (cf::rndm 15, 40),
		1871	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1872	#layout => string,
1444	};	1873	};
1445		1874
1446	for (split /\n/, $spec) {	1875	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	1876	my ($k, $v) = split /\s+/, $_, 2;
1448		1877
…		…
1452	$rmp	1881	$rmp
1453	}	1882	}
1454		1883
1455	sub prepare_random_map {	1884	sub prepare_random_map {
1456	my ($exit) = @_;	1885	my ($exit) = @_;
		1886
		1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		1888
1458	# all this does is basically replace the /! path by	1889	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	1890	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	1891	# that depends on the exit object
1461		1892
1462	my $rmp = parse_random_map_params $exit->msg;	1893	my $rmp = parse_random_map_params $exit->msg;
1463		1894
1464	if ($exit->map) {	1895	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	1896	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	1897	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	1898	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	1899	$rmp->{origin_y} = $exit->y;
1469	}	1900	}
1470		1901
1471	$rmp->{random_seed} ||= $exit->random_seed;	1902	$rmp->{random_seed} ||= $exit->random_seed;
1472		1903
1473	my $data = cf::to_json $rmp;	1904	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	1905	my $md5 = Digest::MD5::md5_hex $data;
		1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1475		1907
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	1909	aio_write $fh, 0, (length $data), $data, 0;
		1910	undef $fh;
		1911	aio_rename "$meta~", $meta;
1478		1912
1479	$exit->slaying ("?random/$md5");	1913	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	1914	$exit->msg (undef);
1481	}	1915	}
1482	}	1916	}
…		…
1484	sub cf::object::player::enter_exit {	1918	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	1919	my ($self, $exit) = @_;
1486		1920
1487	return unless $self->type == cf::PLAYER;	1921	return unless $self->type == cf::PLAYER;
1488		1922
		1923	if ($exit->slaying eq "/!") {
		1924	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1925	cf::sync_job { prepare_random_map $exit };
		1926	}
		1927
		1928	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1929	my $hp = $exit->stats->hp;
		1930	my $sp = $exit->stats->sp;
		1931
1489	$self->enter_link;	1932	$self->enter_link;
1490		1933
1491	(Coro::async {	1934	(async {
		1935	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	1936	unless (eval {
1493		1937	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		1938
1500	1;	1939	1;
1501	}) {	1940	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	1941	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	1942	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	1943	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	1944	cf::NDI_UNIQUE | cf::NDI_RED);
1506		1945
1507	warn "ERROR in enter_exit: $@";	1946	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	1947	$self->leave_link;
1509	}	1948	}
…		…
1560	on_reply => sub {	1999	on_reply => sub {
1561	my ($ns, $msg) = @_;	2000	my ($ns, $msg) = @_;
1562		2001
1563	# this weird shuffling is so that direct followup queries	2002	# this weird shuffling is so that direct followup queries
1564	# get handled first	2003	# get handled first
1565	my $queue = delete $ns->{query_queue};	2004	my $queue = delete $ns->{query_queue}
		2005	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2006
1567	(shift @$queue)->[1]->($msg);	2007	(shift @$queue)->[1]->($msg);
		2008	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2009
1569	push @{ $ns->{query_queue} }, @$queue;	2010	push @{ $ns->{query_queue} }, @$queue;
1570		2011
1571	if (@{ $ns->{query_queue} } == @$queue) {	2012	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2013	if (@$queue) {
…		…
1576	}	2017	}
1577	}	2018	}
1578	},	2019	},
1579	);	2020	);
1580		2021
1581	=item $client->coro (\&cb)	2022	=item $client->async (\&cb)
1582		2023
1583	Create a new coroutine, running the specified callback. The coroutine will	2024	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2025	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2026	or loss of connection).
1586		2027
1587	=cut	2028	=cut
1588		2029
1589	sub cf::client::coro {	2030	sub cf::client::async {
1590	my ($self, $cb) = @_;	2031	my ($self, $cb) = @_;
1591		2032
1592	my $coro; $coro = async {	2033	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2034
1599	$coro->on_destroy (sub {	2035	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2036	delete $self->{_coro}{$coro+0};
1601	});	2037	});
1602		2038
…		…
1774		2210
1775	{	2211	{
1776	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
1777		2213
1778	sub db_load() {	2214	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };	2215	$DB = stat $path ? Storable::retrieve $path : { };
1781	}	2216	}
1782		2217
1783	my $pid;	2218	my $pid;
1784		2219
1785	sub db_save() {	2220	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;	2221	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {	2222	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;	2223	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";	2224	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;	2225	rename "$path~", $path;
…		…
1798	sub db_sync() {	2232	sub db_sync() {
1799	db_save if $dirty;	2233	db_save if $dirty;
1800	undef $dirty;	2234	undef $dirty;
1801	}	2235	}
1802		2236
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2237	my $idle = Event->idle (
1804	db_sync;	2238	reentrant => 0,
		2239	min => 10,
		2240	max => 20,
		2241	repeat => 0,
		2242	data => WF_AUTOCANCEL,
		2243	cb => \&db_sync,
1805	});	2244	);
1806		2245
1807	sub db_dirty() {	2246	sub db_dirty() {
1808	$dirty = 1;	2247	$dirty = 1;
1809	$idle->start;	2248	$idle->start;
1810	}	2249	}
…		…
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2278	open my $fh, "<:utf8", cf::confdir . "/config"
1840	or return;	2279	or return;
1841		2280
1842	local $/;	2281	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2282	*CFG = YAML::Syck::Load <$fh>;
		2283
		2284	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2285
		2286	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2287	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2288
		2289	if (exists $CFG{mlockall}) {
		2290	eval {
		2291	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2292	and die "WARNING: m(un)lockall failed: $!\n";
		2293	};
		2294	warn $@ if $@;
		2295	}
1844	}	2296	}
1845		2297
1846	sub main {	2298	sub main {
1847	# we must not ever block the main coroutine	2299	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2300	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2301	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2302	(async {
1851	Event::one_event;	2303	Event::one_event;
1852	})->();	2304	})->prio (Coro::PRIO_MAX);
1853	};	2305	};
1854		2306
1855	cfg_load;	2307	cfg_load;
1856	db_load;	2308	db_load;
1857	load_extensions;	2309	load_extensions;
		2310
		2311	$TICK_WATCHER->start;
1858	Event::loop;	2312	Event::loop;
1859	}	2313	}
1860		2314
1861	#############################################################################	2315	#############################################################################
1862	# initialisation	2316	# initialisation and cleanup
		2317
		2318	# install some emergency cleanup handlers
		2319	BEGIN {
		2320	for my $signal (qw(INT HUP TERM)) {
		2321	Event->signal (
		2322	reentrant => 0,
		2323	data => WF_AUTOCANCEL,
		2324	signal => $signal,
		2325	prio => 0,
		2326	cb => sub {
		2327	cf::cleanup "SIG$signal";
		2328	},
		2329	);
		2330	}
		2331	}
		2332
		2333	sub emergency_save() {
		2334	my $freeze_guard = cf::freeze_mainloop;
		2335
		2336	warn "enter emergency perl save\n";
		2337
		2338	cf::sync_job {
		2339	# use a peculiar iteration method to avoid tripping on perl
		2340	# refcount bugs in for. also avoids problems with players
		2341	# and maps saved/destroyed asynchronously.
		2342	warn "begin emergency player save\n";
		2343	for my $login (keys %cf::PLAYER) {
		2344	my $pl = $cf::PLAYER{$login} or next;
		2345	$pl->valid or next;
		2346	$pl->save;
		2347	}
		2348	warn "end emergency player save\n";
		2349
		2350	warn "begin emergency map save\n";
		2351	for my $path (keys %cf::MAP) {
		2352	my $map = $cf::MAP{$path} or next;
		2353	$map->valid or next;
		2354	$map->save;
		2355	}
		2356	warn "end emergency map save\n";
		2357	};
		2358
		2359	warn "leave emergency perl save\n";
		2360	}
1863		2361
1864	sub reload() {	2362	sub reload() {
1865	# can/must only be called in main	2363	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2364	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2365	warn "can only reload from main coroutine";
1868	return;	2366	return;
1869	}	2367	}
1870		2368
1871	warn "reloading...";	2369	warn "reloading...";
1872		2370
1873	local $FREEZE = 1;	2371	warn "cancelling server ticker";
		2372	$TICK_WATCHER->cancel;
		2373
1874	cf::emergency_save;	2374	cf::emergency_save;
1875		2375
1876	eval {	2376	eval {
1877	# if anything goes wrong in here, we should simply crash as we already saved	2377	# if anything goes wrong in here, we should simply crash as we already saved
1878		2378
1879	# cancel all watchers	2379	warn "syncing database to disk";
		2380	cf::db_sync;
		2381
		2382	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2383	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2384	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2385	}
1883		2386
		2387	warn "flushing outstanding aio requests";
		2388	for (;;) {
		2389	IO::AIO::flush;
		2390	Coro::cede;
		2391	last unless IO::AIO::nreqs;
		2392	warn "iterate...";
		2393	}
		2394
1884	# cancel all extension coros	2395	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2396	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2397	%EXT_CORO = ();
1887		2398
1888	# unload all extensions	2399	warn "removing commands";
1889	for (@exts) {	2400	%COMMAND = ();
		2401
		2402	warn "removing ext commands";
		2403	%EXTCMD = ();
		2404
		2405	warn "unloading/nuking all extensions";
		2406	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2407	warn "... unloading $pkg";
1891	unload_extension $_;	2408
		2409	if (my $cb = $pkg->can ("unload")) {
		2410	eval {
		2411	$cb->($pkg);
		2412	1
		2413	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2414	}
1893		2415
		2416	warn "... nuking $pkg";
		2417	Symbol::delete_package $pkg;
		2418	}
		2419
1894	# unload all modules loaded from $LIBDIR	2420	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2421	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2422	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2423
1898	warn "removing <$k>";	2424	warn "... unloading $k";
1899	delete $INC{$k};	2425	delete $INC{$k};
1900		2426
1901	$k =~ s/\.pm$//;	2427	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2428	$k =~ s/\//::/g;
1903		2429
…		…
1906	}	2432	}
1907		2433
1908	Symbol::delete_package $k;	2434	Symbol::delete_package $k;
1909	}	2435	}
1910		2436
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2437	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2438	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2439	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2440
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2441	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2442	delete $INC{"cf.pm"};
1924		2443
1925	# don't, removes xs symbols, too,	2444	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2445	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2446	#Symbol::delete_package __PACKAGE__;
1928		2447
1929	# reload cf.pm	2448	warn "unload completed, starting to reload now";
		2449
1930	warn "reloading cf.pm";	2450	warn "reloading cf.pm";
1931	require cf;	2451	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2452	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2453
1934	# load config and database again	2454	warn "loading config and database again";
1935	cf::cfg_load;	2455	cf::cfg_load;
1936	cf::db_load;	2456	cf::db_load;
1937		2457
1938	# load extensions
1939	warn "load extensions";	2458	warn "loading extensions";
1940	cf::load_extensions;	2459	cf::load_extensions;
1941		2460
1942	# reattach attachments to objects	2461	warn "reattaching attachments to objects/players";
1943	warn "reattach";
1944	_global_reattach;	2462	_global_reattach;
		2463	warn "reattaching attachments to maps";
		2464	reattach $_ for values %MAP;
		2465
		2466	warn "restarting server ticker";
		2467
		2468	$TICK_WATCHER->start;
1945	};	2469	};
1946		2470
1947	if ($@) {	2471	if ($@) {
1948	warn $@;	2472	warn $@;
1949	warn "error while reloading, exiting.";	2473	warn "error while reloading, exiting.";
1950	exit 1;	2474	exit 1;
1951	}	2475	}
1952		2476
1953	warn "reloaded successfully";	2477	warn "reloaded";
1954	};	2478	};
1955		2479
1956	#############################################################################	2480	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} = $LINK_MAP;
1997	}
1998
1999	register "<global>", __PACKAGE__;
2000		2481
2001	register_command "reload" => sub {	2482	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2483	my ($who, $arg) = @_;
2003		2484
2004	if ($who->flag (FLAG_WIZ)) {	2485	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");	2486	$who->message ("reloading server.");
		2487
		2488	# doing reload synchronously and two reloads happen back-to-back,
		2489	# coro crashes during coro_state_free->destroy here.
		2490
		2491	$RELOAD_WATCHER ||= Event->timer (
		2492	reentrant => 0,
		2493	after => 0,
		2494	data => WF_AUTOCANCEL,
		2495	cb => sub {
2006	reload;	2496	reload;
2007	$who->message ("end of reload.");	2497	undef $RELOAD_WATCHER;
		2498	},
		2499	);
2008	}	2500	}
2009	};	2501	};
2010		2502
2011	unshift @INC, $LIBDIR;	2503	unshift @INC, $LIBDIR;
		2504
		2505	my $bug_warning = 0;
2012		2506
2013	$TICK_WATCHER = Event->timer (	2507	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2508	reentrant => 0,
		2509	parked => 1,
2015	prio => 0,	2510	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2511	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2512	data => WF_AUTOCANCEL,
2018	cb => sub {	2513	cb => sub {
2019	unless ($FREEZE) {	2514	if ($Coro::current != $Coro::main) {
		2515	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2516	unless ++$bug_warning > 10;
		2517	return;
		2518	}
		2519
		2520	$NOW = Event::time;
		2521
2020	cf::server_tick; # one server iteration	2522	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2523	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	2524	$NEXT_TICK += $TICK;
		2525
		2526	$WAIT_FOR_TICK->broadcast;
		2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2528
		2529	Event::sweep;
		2530	Coro::cede_notself;
		2531
		2532	# my $AFTER = Event::time;
		2533	# warn $AFTER - $NOW;#d#
2025		2534
2026	# if we are delayed by four ticks or more, skip them all	2535	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2536	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028		2537
2029	$TICK_WATCHER->at ($NEXT_TICK);	2538	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2539	$TICK_WATCHER->start;
2031	},	2540	},
2032	);	2541	);
2033		2542
2034	IO::AIO::max_poll_time $TICK * 0.2;	2543	IO::AIO::max_poll_time $TICK * 0.1;
2035		2544
2036	Event->io (	2545	undef $Coro::AIO::WATCHER;
		2546	$AIO_POLL_WATCHER = Event->io (
		2547	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	2548	fd => IO::AIO::poll_fileno,
2038	poll => 'r',	2549	poll => 'r',
2039	prio => 5,	2550	prio => 6,
2040	data => WF_AUTOCANCEL,	2551	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,	2552	cb => \&IO::AIO::poll_cb,
2042	);	2553	);
2043		2554
2044	Event->timer (	2555	$WRITE_RUNTIME_WATCHER = Event->timer (
		2556	reentrant => 0,
2045	data => WF_AUTOCANCEL,	2557	data => WF_AUTOCANCEL,
2046	after => 0,	2558	after => 1,
2047	interval => 10,	2559	interval => 10,
2048	cb => sub {	2560	prio => 6, # keep it lowest so it acts like a watchdog
2049	(Coro::unblock_sub {	2561	cb => Coro::unblock_sub {
2050	write_runtime	2562	write_runtime
2051	or warn "ERROR: unable to write runtime file: $!";	2563	or warn "ERROR: unable to write runtime file: $!";
2052	})->();
2053	},	2564	},
2054	);	2565	);
2055		2566
		2567	END { cf::emergency_save }
		2568
2056	1	2569	1
2057		2570

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