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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.200 by root, Mon Jan 29 17:57:22 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	my $files = aio_readdir playerdir $pl
		1085	or return;
		1086
		1087	my @paths;
		1088
		1089	for (@$files) {
		1090	utf8::decode $_;
		1091	next if /\.(?:pl|pst)$/;
		1092	next unless /^$PATH_SEP/o;
		1093
		1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;
		1095	}
		1096
		1097	\@paths
1025	}	1098	}
1026		1099
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1100	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1101
1029	Sends an ext reply to the player.	1102	Sends an ext reply to the player.
1030		1103
1031	=cut	1104	=cut
1032		1105
1033	sub cf::player::ext_reply($$$%) {	1106	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1107	my ($self, $id, %msg) = @_;
1035		1108
1036	$msg{msgid} = $id;	1109	$msg{msgid} = $id;
1037		1110
1038	$self->send ("ext " . to_json \%msg);	1111	$self->send ("ext " . cf::to_json \%msg);
1039	}	1112	}
		1113
		1114	package cf;
1040		1115
1041	=back	1116	=back
1042		1117
1043		1118
1044	=head3 cf::map	1119	=head3 cf::map
…		…
1050	package cf::map;	1125	package cf::map;
1051		1126
1052	use Fcntl;	1127	use Fcntl;
1053	use Coro::AIO;	1128	use Coro::AIO;
1054		1129
		1130	use overload
		1131	'""' => \&as_string,
		1132	fallback => 1;
		1133
1055	our $MAX_RESET = 7200;	1134	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1135	our $DEFAULT_RESET = 3000;
1057		1136
1058	sub generate_random_map {	1137	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1138	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1139	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1140	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1141	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1142	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1143	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1144	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1145	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1146	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1147	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1148	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1149	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1150	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1151	(cf::region::find $rmp->{region}), $rmp->{custom}
		1152	)
		1153	}
		1154
		1155	=item cf::map->register ($regex, $prio)
		1156
		1157	Register a handler for the map path matching the given regex at the
		1158	givne priority (higher is better, built-in handlers have priority 0, the
		1159	default).
		1160
		1161	=cut
		1162
		1163	sub register {
		1164	my (undef, $regex, $prio) = @_;
		1165	my $pkg = caller;
		1166
		1167	no strict;
		1168	push @{"$pkg\::ISA"}, __PACKAGE__;
		1169
		1170	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1171	}
		1172
		1173	# also paths starting with '/'
		1174	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1175
		1176	sub thawer_merge {
		1177	my ($self, $merge) = @_;
		1178
		1179	# we have to keep some variables in memory intact
		1180	local $self->{path};
		1181	local $self->{load_path};
		1182	local $self->{deny_save};
		1183	local $self->{deny_reset};
		1184
		1185	$self->SUPER::thawer_merge ($merge);
		1186	}
		1187
		1188	sub normalise {
		1189	my ($path, $base) = @_;
		1190
		1191	$path = "$path"; # make sure its a string
		1192
		1193	$path =~ s/\.map$//;
		1194
		1195	# map plan:
		1196	#
		1197	# /! non-realised random map exit (special hack!)
		1198	# {... are special paths that are not being touched
		1199	# ?xxx/... are special absolute paths
		1200	# ?random/... random maps
		1201	# /... normal maps
		1202	# ~user/... per-player map of a specific user
		1203
		1204	$path =~ s/$PATH_SEP/\//go;
		1205
		1206	# treat it as relative path if it starts with
		1207	# something that looks reasonable
		1208	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1209	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1210
		1211	$base =~ s{[^/]+/?$}{};
		1212	$path = "$base/$path";
		1213	}
		1214
		1215	for ($path) {
		1216	redo if s{//}{/};
		1217	redo if s{/\.?/}{/};
		1218	redo if s{/[^/]+/\.\./}{/};
		1219	}
		1220
		1221	$path
		1222	}
		1223
		1224	sub new_from_path {
		1225	my (undef, $path, $base) = @_;
		1226
		1227	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1228
		1229	$path = normalise $path, $base;
		1230
		1231	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1232	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1233	my $self = bless cf::map::new, $pkg;
		1234	$self->{path} = $path; $self->path ($path);
		1235	$self->init; # pass $1 etc.
		1236	return $self;
		1237	}
		1238	}
		1239
		1240	Carp::carp "unable to resolve path '$path' (base '$base').";
		1241	()
		1242	}
		1243
		1244	sub init {
		1245	my ($self) = @_;
		1246
		1247	$self
		1248	}
		1249
		1250	sub as_string {
		1251	my ($self) = @_;
		1252
		1253	"$self->{path}"
		1254	}
		1255
		1256	# the displayed name, this is a one way mapping
		1257	sub visible_name {
		1258	&as_string
		1259	}
		1260
		1261	# the original (read-only) location
		1262	sub load_path {
		1263	my ($self) = @_;
		1264
		1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1266	}
		1267
		1268	# the temporary/swap location
		1269	sub save_path {
		1270	my ($self) = @_;
		1271
		1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1274	}
		1275
		1276	# the unique path, undef == no special unique path
		1277	sub uniq_path {
		1278	my ($self) = @_;
		1279
		1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1282	}
1076		1283
1077	# and all this just because we cannot iterate over	1284	# and all this just because we cannot iterate over
1078	# all maps in C++...	1285	# all maps in C++...
1079	sub change_all_map_light {	1286	sub change_all_map_light {
1080	my ($change) = @_;	1287	my ($change) = @_;
1081		1288
1082	$_->change_map_light ($change) for values %cf::MAP;	1289	$_->change_map_light ($change)
		1290	for grep $_->outdoor, values %cf::MAP;
1083	}	1291	}
1084		1292
		1293	sub unlink_save {
		1294	my ($self) = @_;
		1295
		1296	utf8::encode (my $save = $self->save_path);
		1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1299
		1300	#d#TODO remove .map and also nuke
		1301	$save =~ s/\.map// or return;#d#
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1304	}
		1305
1085	sub try_load_header($) {	1306	sub load_header_from($) {
1086	my ($path) = @_;	1307	my ($self, $path) = @_;
1087		1308
1088	utf8::encode $path;	1309	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1310	#aio_open $path, O_RDONLY, 0
		1311	# or return;
		1312
		1313	$self->_load_header ($path)
1090	or return;	1314	or return;
1091		1315
1092	my $map = cf::map::new	1316	$self->{load_path} = $path;
		1317
		1318	1
		1319	}
		1320
		1321	sub load_header_orig {
		1322	my ($self) = @_;
		1323
		1324	$self->load_header_from ($self->load_path)
		1325	}
		1326
		1327	sub load_header_temp {
		1328	my ($self) = @_;
		1329
		1330	$self->load_header_from ($self->save_path)
		1331	}
		1332
		1333	sub prepare_temp {
		1334	my ($self) = @_;
		1335
		1336	$self->last_access ((delete $self->{last_access})
		1337	|| $cf::RUNTIME); #d#
		1338	# safety
		1339	$self->{instantiate_time} = $cf::RUNTIME
		1340	if $self->{instantiate_time} > $cf::RUNTIME;
		1341	}
		1342
		1343	sub prepare_orig {
		1344	my ($self) = @_;
		1345
		1346	$self->{load_original} = 1;
		1347	$self->{instantiate_time} = $cf::RUNTIME;
		1348	$self->last_access ($cf::RUNTIME);
		1349	$self->instantiate;
		1350	}
		1351
		1352	sub load_header {
		1353	my ($self) = @_;
		1354
		1355	if ($self->load_header_temp) {
		1356	$self->prepare_temp;
		1357	} else {
		1358	$self->load_header_orig
1093	or return;	1359	or return;
		1360	$self->prepare_orig;
		1361	}
1094		1362
1095	$map->load_header ($path)	1363	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1364	}
1102		1365
		1366	sub find;
1103	sub find_map {	1367	sub find {
1104	my ($path, $origin) = @_;	1368	my ($path, $origin) = @_;
1105		1369
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1370	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1371
		1372	cf::lock_wait "map_find:$path";
		1373
1111	$cf::MAP{$key} || do {	1374	$cf::MAP{$path} || do {
1112	# do it the slow way	1375	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1376	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;	1377	or return;
1127		1378
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);	1379	$map->{last_save} = $cf::RUNTIME;
1139		1380
1140	if ($map->should_reset) {	1381	$map->load_header
		1382	or return;
		1383
		1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1385	# doing this can freeze the server in a sync job, obviously
		1386	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1387	$map->reset;
1142	$map = find_map $path;	1388	undef $guard;
		1389	return find $path;
1143	}	1390	}
1144		1391
1145	$cf::MAP{$key} = $map	1392	$cf::MAP{$path} = $map
1146	}	1393	}
1147	}	1394	}
		1395
		1396	sub pre_load { }
		1397	sub post_load { }
1148		1398
1149	sub load {	1399	sub load {
1150	my ($self) = @_;	1400	my ($self) = @_;
1151		1401
		1402	local $self->{deny_reset} = 1; # loading can take a long time
		1403
		1404	my $path = $self->{path};
		1405	my $guard = cf::lock_acquire "map_load:$path";
		1406
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1407	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1408
1154	$self->in_memory (cf::MAP_LOADING);	1409	$self->in_memory (cf::MAP_LOADING);
1155		1410
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1411	$self->alloc;
		1412
		1413	$self->pre_load;
		1414
1159	$self->load_objects ($self->{load_path}, 1)	1415	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1416	or return;
1161		1417
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1419	if delete $self->{load_original};
1164		1420
1165	if (my $uniq = $path->uniq_path) {	1421	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1422	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1423	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1424	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1425	$self->_load_objects ($uniq, 0);
1170	}	1426	}
1171	}	1427	}
		1428
		1429	Coro::cede;
1172		1430
1173	# now do the right thing for maps	1431	# now do the right thing for maps
1174	$self->link_multipart_objects;	1432	$self->link_multipart_objects;
1175		1433
1176	if ($self->{path}->is_style_map) {	1434	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1435	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1436	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1437	$self->update_buttons;
		1438	Coro::cede;
1183	$self->set_darkness_map;	1439	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1440	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1441	unless $self->difficulty;
		1442	Coro::cede;
1186	$self->activate;	1443	$self->activate;
1187	}	1444	}
1188		1445
		1446	$self->post_load;
		1447
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1448	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1449	}
1191		1450
1192	sub load_map_sync {	1451	sub customise_for {
		1452	my ($self, $ob) = @_;
		1453
		1454	return find "~" . $ob->name . "/" . $self->{path}
		1455	if $self->per_player;
		1456
		1457	$self
		1458	}
		1459
		1460	# find and load all maps in the 3x3 area around a map
		1461	sub load_diag {
		1462	my ($map) = @_;
		1463
		1464	my @diag; # diagonal neighbours
		1465
		1466	for (0 .. 3) {
		1467	my $neigh = $map->tile_path ($_)
		1468	or next;
		1469	$neigh = find $neigh, $map
		1470	or next;
		1471	$neigh->load;
		1472
		1473	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1474	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1475	}
		1476
		1477	for (@diag) {
		1478	my $neigh = find @$_
		1479	or next;
		1480	$neigh->load;
		1481	}
		1482	}
		1483
		1484	sub find_sync {
1193	my ($path, $origin) = @_;	1485	my ($path, $origin) = @_;
1194		1486
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1487	cf::sync_job { find $path, $origin }
		1488	}
1196		1489
1197	cf::sync_job {	1490	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1491	my ($map) = @_;
1199	or return;	1492
		1493	cf::sync_job { $map->load };
		1494	}
		1495
		1496	our %MAP_PREFETCH;
		1497	our $MAP_PREFETCHER = undef;
		1498
		1499	sub find_async {
		1500	my ($path, $origin) = @_;
		1501
		1502	$path = normalise $path, $origin && $origin->{path};
		1503
		1504	if (my $map = $cf::MAP{$path}) {
		1505	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1506	}
		1507
		1508	undef $MAP_PREFETCH{$path};
		1509	$MAP_PREFETCHER ||= cf::async {
		1510	while (%MAP_PREFETCH) {
		1511	for my $path (keys %MAP_PREFETCH) {
		1512	my $map = find $path
		1513	or next;
1200	$map->load;	1514	$map->load;
1201	$map	1515
		1516	delete $MAP_PREFETCH{$path};
		1517	}
		1518	}
		1519	undef $MAP_PREFETCHER;
1202	}	1520	};
		1521	$MAP_PREFETCHER->prio (6);
		1522
		1523	()
1203	}	1524	}
1204		1525
1205	sub save {	1526	sub save {
1206	my ($self) = @_;	1527	my ($self) = @_;
1207		1528
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1529	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1530
1211	$self->{last_save} = $cf::RUNTIME;	1531	$self->{last_save} = $cf::RUNTIME;
1212		1532
1213	return unless $self->dirty;	1533	return unless $self->dirty;
1214		1534
		1535	my $save = $self->save_path; utf8::encode $save;
		1536	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1537
1215	$self->{load_path} = $save;	1538	$self->{load_path} = $save;
1216		1539
1217	return if $self->{deny_save};	1540	return if $self->{deny_save};
1218		1541
		1542	local $self->{last_access} = $self->last_access;#d#
		1543
		1544	cf::async {
		1545	$_->contr->save for $self->players;
		1546	};
		1547
1219	if ($uniq) {	1548	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1550	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1551	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1552	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1553	}
1225	}	1554	}
1226		1555
1227	sub swap_out {	1556	sub swap_out {
1228	my ($self) = @_;	1557	my ($self) = @_;
		1558
		1559	# save first because save cedes
		1560	$self->save;
		1561
		1562	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1563
1230	return if $self->players;	1564	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1565	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1566	return if $self->{deny_save};
1233		1567
1234	$self->save;
1235	$self->clear;	1568	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1569	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1570	}
1238		1571
1239	sub reset_at {	1572	sub reset_at {
1240	my ($self) = @_;	1573	my ($self) = @_;
1241		1574
1242	# TODO: safety, remove and allow resettable per-player maps	1575	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1577	return 1e99 if $self->{deny_reset};
1245		1578
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1580	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1581
1250	$time + $to	1582	$time + $to
1251	}	1583	}
1252		1584
1253	sub should_reset {	1585	sub should_reset {
1254	my ($self) = @_;	1586	my ($self) = @_;
1255		1587
1256	$self->reset_at <= $cf::RUNTIME	1588	$self->reset_at <= $cf::RUNTIME
1257	}	1589	}
1258		1590
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1591	sub reset {
1268	my ($self) = @_;	1592	my ($self) = @_;
1269		1593
		1594	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1595
1270	return if $self->players;	1596	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1597	return if $self->isa ("ext::map_per_player");#d#
1272		1598
1273	warn "resetting map ", $self->path;#d#	1599	warn "resetting map ", $self->path;#d#
1274		1600
1275	delete $cf::MAP{$self->path};	1601	delete $cf::MAP{$self->path};
		1602
		1603	$self->in_memory (cf::MAP_SWAPPED);
		1604	$self->clear;
1276		1605
1277	$_->clear_links_to ($self) for values %cf::MAP;	1606	$_->clear_links_to ($self) for values %cf::MAP;
1278		1607
1279	$self->unlink_save;	1608	$self->unlink_save;
1280	$self->destroy;	1609	$self->destroy;
1281	}	1610	}
1282		1611
1283	sub customise_for {	1612	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1613
1286	if ($map->per_player) {	1614	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1615	my ($self) = @_;
1288	}
1289		1616
1290	$map	1617	delete $cf::MAP{$self->path};
1291	}
1292		1618
1293	sub emergency_save {	1619	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1620
1296	warn "enter emergency map save\n";	1621	bless $self, "cf::map";
		1622	delete $self->{deny_reset};
		1623	$self->{deny_save} = 1;
		1624	$self->reset_timeout (1);
		1625	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1626
1298	cf::sync_job {	1627	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1628
1300	$_->save for values %cf::MAP;	1629	$self->reset; # polite request, might not happen
		1630	}
		1631
		1632	=item cf::map::unique_maps
		1633
		1634	Returns an arrayref of paths of all shared maps that have
		1635	instantiated unique items. May block.
		1636
		1637	=cut
		1638
		1639	sub unique_maps() {
		1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1641	or return;
		1642
		1643	my @paths;
		1644
		1645	for (@$files) {
		1646	utf8::decode $_;
		1647	next if /\.pst$/;
		1648	next unless /^$PATH_SEP/o;
		1649
		1650	push @paths, cf::map::normalise $_;
1301	};	1651	}
1302		1652
1303	warn "end emergency map save\n";	1653	\@paths
1304	}	1654	}
1305		1655
1306	package cf;	1656	package cf;
1307		1657
1308	=back	1658	=back
1309		1659
		1660	=head3 cf::object
		1661
		1662	=cut
		1663
		1664	package cf::object;
		1665
		1666	=over 4
		1667
		1668	=item $ob->inv_recursive
		1669
		1670	Returns the inventory of the object _and_ their inventories, recursively.
		1671
		1672	=cut
		1673
		1674	sub inv_recursive_;
		1675	sub inv_recursive_ {
		1676	map { $_, inv_recursive_ $_->inv } @_
		1677	}
		1678
		1679	sub inv_recursive {
		1680	inv_recursive_ inv $_[0]
		1681	}
		1682
		1683	package cf;
		1684
		1685	=back
1310		1686
1311	=head3 cf::object::player	1687	=head3 cf::object::player
1312		1688
1313	=over 4	1689	=over 4
1314		1690
…		…
1350	(ref $cf::CFG{"may_$access"}	1726	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1727	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1728	: $cf::CFG{"may_$access"})
1353	}	1729	}
1354		1730
		1731	=item $player_object->enter_link
		1732
		1733	Freezes the player and moves him/her to a special map (C<{link}>).
		1734
		1735	The player should be reasonably safe there for short amounts of time. You
		1736	I<MUST> call C<leave_link> as soon as possible, though.
		1737
		1738	Will never block.
		1739
		1740	=item $player_object->leave_link ($map, $x, $y)
		1741
		1742	Moves the player out of the special C<{link}> map onto the specified
		1743	map. If the map is not valid (or omitted), the player will be moved back
		1744	to the location he/she was before the call to C<enter_link>, or, if that
		1745	fails, to the emergency map position.
		1746
		1747	Might block.
		1748
		1749	=cut
		1750
		1751	sub link_map {
		1752	unless ($LINK_MAP) {
		1753	$LINK_MAP = cf::map::find "{link}"
		1754	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1755	$LINK_MAP->load;
		1756	}
		1757
		1758	$LINK_MAP
		1759	}
		1760
1355	sub cf::object::player::enter_link {	1761	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1762	my ($self) = @_;
1357		1763
1358	return if $self->map == $LINK_MAP;	1764	$self->deactivate_recursive;
1359		1765
		1766	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1767
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1769	if $self->map;
1362		1770
1363	$self->enter_map ($LINK_MAP, 20, 20);	1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1772	}
1366		1773
1367	sub cf::object::player::leave_link {	1774	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1775	my ($self, $map, $x, $y) = @_;
1369		1776
1370	my $link_pos = delete $self->{_link_pos};	1777	my $link_pos = delete $self->{_link_pos};
1371		1778
1372	unless ($map) {	1779	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1780	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1781	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1782	$map = cf::map::find $map;
1378		1783
1379	unless ($map) {	1784	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1785	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1786	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1787	or die "FATAL: cannot load emergency map\n";
1383	}	1788	}
1384	}	1789	}
1385		1790
1386	($x, $y) = (-1, -1)	1791	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1794	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1795	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1796	if $x <=0 && $y <= 0;
1392		1797
1393	$map->load;	1798	$map->load;
		1799	$map->load_diag;
1394		1800
		1801	return unless $self->contr->active;
1395	$self->activate_recursive;	1802	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	1803	$self->enter_map ($map, $x, $y);
1397	}	1804	}
1398		1805
		1806	cf::player->attach (
		1807	on_logout => sub {
		1808	my ($pl) = @_;
		1809
		1810	# abort map switching before logout
		1811	if ($pl->ob->{_link_pos}) {
		1812	cf::sync_job {
		1813	$pl->ob->leave_link
		1814	};
		1815	}
		1816	},
		1817	on_login => sub {
		1818	my ($pl) = @_;
		1819
		1820	# try to abort aborted map switching on player login :)
		1821	# should happen only on crashes
		1822	if ($pl->ob->{_link_pos}) {
		1823	$pl->ob->enter_link;
		1824	(async {
		1825	# we need this sleep as the login has a concurrent enter_exit running
		1826	# and this sleep increases chances of the player not ending up in scorn
		1827	$pl->ob->reply (undef,
		1828	"There was an internal problem at your last logout, "
		1829	. "the server will try to bring you to your intended destination in a second.",
		1830	cf::NDI_RED);
		1831	Coro::Timer::sleep 1;
		1832	$pl->ob->leave_link;
		1833	})->prio (2);
		1834	}
		1835	},
		1836	);
		1837
1399	=item $player_object->goto_map ($map, $x, $y)	1838	=item $player_object->goto ($path, $x, $y)
1400		1839
1401	=cut	1840	=cut
1402		1841
1403	sub cf::object::player::goto_map {	1842	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1843	my ($self, $path, $x, $y) = @_;
1405		1844
1406	$self->enter_link;	1845	$self->enter_link;
1407		1846
1408	(Coro::async {	1847	(async {
1409	$path = new cf::path $path;	1848	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1849	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1850	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1851	$map
		1852	} or
		1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1854
1417	$self->leave_link ($map, $x, $y);	1855	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1856	})->prio (1);
1419	}	1857	}
1420		1858
…		…
1424		1862
1425	sub parse_random_map_params {	1863	sub parse_random_map_params {
1426	my ($spec) = @_;	1864	my ($spec) = @_;
1427		1865
1428	my $rmp = { # defaults	1866	my $rmp = { # defaults
1429	xsize => 10,	1867	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1868	ysize => (cf::rndm 15, 40),
		1869	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1870	#layout => string,
1431	};	1871	};
1432		1872
1433	for (split /\n/, $spec) {	1873	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1874	my ($k, $v) = split /\s+/, $_, 2;
1435		1875
…		…
1439	$rmp	1879	$rmp
1440	}	1880	}
1441		1881
1442	sub prepare_random_map {	1882	sub prepare_random_map {
1443	my ($exit) = @_;	1883	my ($exit) = @_;
		1884
		1885	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1886
1445	# all this does is basically replace the /! path by	1887	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1888	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1889	# that depends on the exit object
1448		1890
1449	my $rmp = parse_random_map_params $exit->msg;	1891	my $rmp = parse_random_map_params $exit->msg;
1450		1892
1451	if ($exit->map) {	1893	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	1894	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	1895	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	1896	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	1897	$rmp->{origin_y} = $exit->y;
1456	}	1898	}
1457		1899
1458	$rmp->{random_seed} ||= $exit->random_seed;	1900	$rmp->{random_seed} ||= $exit->random_seed;
1459		1901
1460	my $data = cf::to_json $rmp;	1902	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1903	my $md5 = Digest::MD5::md5_hex $data;
		1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1905
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1907	aio_write $fh, 0, (length $data), $data, 0;
		1908	undef $fh;
		1909	aio_rename "$meta~", $meta;
1465		1910
1466	$exit->slaying ("?random/$md5");	1911	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1912	$exit->msg (undef);
1468	}	1913	}
1469	}	1914	}
…		…
1471	sub cf::object::player::enter_exit {	1916	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	1917	my ($self, $exit) = @_;
1473		1918
1474	return unless $self->type == cf::PLAYER;	1919	return unless $self->type == cf::PLAYER;
1475		1920
		1921	if ($exit->slaying eq "/!") {
		1922	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1923	cf::sync_job { prepare_random_map $exit };
		1924	}
		1925
		1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1927	my $hp = $exit->stats->hp;
		1928	my $sp = $exit->stats->sp;
		1929
1476	$self->enter_link;	1930	$self->enter_link;
1477		1931
1478	(Coro::async {	1932	(async {
		1933	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1934	unless (eval {
1480		1935	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		1936
1487	1;	1937	1;
1488	}) {	1938	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1939	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1940	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1941	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1942	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1943
1494	warn "ERROR in enter_exit: $@";	1944	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1945	$self->leave_link;
1496	}	1946	}
…		…
1547	on_reply => sub {	1997	on_reply => sub {
1548	my ($ns, $msg) = @_;	1998	my ($ns, $msg) = @_;
1549		1999
1550	# this weird shuffling is so that direct followup queries	2000	# this weird shuffling is so that direct followup queries
1551	# get handled first	2001	# get handled first
1552	my $queue = delete $ns->{query_queue};	2002	my $queue = delete $ns->{query_queue}
		2003	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2004
1554	(shift @$queue)->[1]->($msg);	2005	(shift @$queue)->[1]->($msg);
1555		2006
1556	push @{ $ns->{query_queue} }, @$queue;	2007	push @{ $ns->{query_queue} }, @$queue;
1557		2008
…		…
1563	}	2014	}
1564	}	2015	}
1565	},	2016	},
1566	);	2017	);
1567		2018
1568	=item $client->coro (\&cb)	2019	=item $client->async (\&cb)
1569		2020
1570	Create a new coroutine, running the specified callback. The coroutine will	2021	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2022	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2023	or loss of connection).
1573		2024
1574	=cut	2025	=cut
1575		2026
1576	sub cf::client::coro {	2027	sub cf::client::async {
1577	my ($self, $cb) = @_;	2028	my ($self, $cb) = @_;
1578		2029
1579	my $coro; $coro = async {	2030	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2031
1586	$coro->on_destroy (sub {	2032	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2033	delete $self->{_coro}{$coro+0};
1588	});	2034	});
1589		2035
…		…
1761		2207
1762	{	2208	{
1763	my $path = cf::localdir . "/database.pst";	2209	my $path = cf::localdir . "/database.pst";
1764		2210
1765	sub db_load() {	2211	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };	2212	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2213	}
1769		2214
1770	my $pid;	2215	my $pid;
1771		2216
1772	sub db_save() {	2217	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;	2218	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {	2219	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;	2220	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";	2221	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;	2222	rename "$path~", $path;
…		…
1785	sub db_sync() {	2229	sub db_sync() {
1786	db_save if $dirty;	2230	db_save if $dirty;
1787	undef $dirty;	2231	undef $dirty;
1788	}	2232	}
1789		2233
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2234	my $idle = Event->idle (
1791	db_sync;	2235	reentrant => 0,
		2236	min => 10,
		2237	max => 20,
		2238	repeat => 0,
		2239	data => WF_AUTOCANCEL,
		2240	cb => \&db_sync,
1792	});	2241	);
1793		2242
1794	sub db_dirty() {	2243	sub db_dirty() {
1795	$dirty = 1;	2244	$dirty = 1;
1796	$idle->start;	2245	$idle->start;
1797	}	2246	}
…		…
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2275	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2276	or return;
1828		2277
1829	local $/;	2278	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2279	*CFG = YAML::Syck::Load <$fh>;
		2280
		2281	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2282
		2283	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2284	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2285
		2286	if (exists $CFG{mlockall}) {
		2287	eval {
		2288	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2289	and die "WARNING: m(un)lockall failed: $!\n";
		2290	};
		2291	warn $@ if $@;
		2292	}
1831	}	2293	}
1832		2294
1833	sub main {	2295	sub main {
1834	# we must not ever block the main coroutine	2296	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2297	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2298	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2299	(async {
1838	Event::one_event;	2300	Event::one_event;
1839	})->();	2301	})->prio (Coro::PRIO_MAX);
1840	};	2302	};
1841		2303
1842	cfg_load;	2304	cfg_load;
1843	db_load;	2305	db_load;
1844	load_extensions;	2306	load_extensions;
		2307
		2308	$TICK_WATCHER->start;
1845	Event::loop;	2309	Event::loop;
1846	}	2310	}
1847		2311
1848	#############################################################################	2312	#############################################################################
1849	# initialisation	2313	# initialisation and cleanup
		2314
		2315	# install some emergency cleanup handlers
		2316	BEGIN {
		2317	for my $signal (qw(INT HUP TERM)) {
		2318	Event->signal (
		2319	reentrant => 0,
		2320	data => WF_AUTOCANCEL,
		2321	signal => $signal,
		2322	prio => 0,
		2323	cb => sub {
		2324	cf::cleanup "SIG$signal";
		2325	},
		2326	);
		2327	}
		2328	}
		2329
		2330	sub emergency_save() {
		2331	my $freeze_guard = cf::freeze_mainloop;
		2332
		2333	warn "enter emergency perl save\n";
		2334
		2335	cf::sync_job {
		2336	# use a peculiar iteration method to avoid tripping on perl
		2337	# refcount bugs in for. also avoids problems with players
		2338	# and maps saved/destroyed asynchronously.
		2339	warn "begin emergency player save\n";
		2340	for my $login (keys %cf::PLAYER) {
		2341	my $pl = $cf::PLAYER{$login} or next;
		2342	$pl->valid or next;
		2343	$pl->save;
		2344	}
		2345	warn "end emergency player save\n";
		2346
		2347	warn "begin emergency map save\n";
		2348	for my $path (keys %cf::MAP) {
		2349	my $map = $cf::MAP{$path} or next;
		2350	$map->valid or next;
		2351	$map->save;
		2352	}
		2353	warn "end emergency map save\n";
		2354	};
		2355
		2356	warn "leave emergency perl save\n";
		2357	}
1850		2358
1851	sub reload() {	2359	sub reload() {
1852	# can/must only be called in main	2360	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2361	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2362	warn "can only reload from main coroutine";
1855	return;	2363	return;
1856	}	2364	}
1857		2365
1858	warn "reloading...";	2366	warn "reloading...";
1859		2367
1860	local $FREEZE = 1;	2368	warn "cancelling server ticker";
		2369	$TICK_WATCHER->cancel;
		2370
1861	cf::emergency_save;	2371	cf::emergency_save;
1862		2372
1863	eval {	2373	eval {
1864	# if anything goes wrong in here, we should simply crash as we already saved	2374	# if anything goes wrong in here, we should simply crash as we already saved
1865		2375
1866	# cancel all watchers	2376	warn "syncing database to disk";
		2377	cf::db_sync;
		2378
		2379	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2380	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2381	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2382	}
1870		2383
		2384	warn "flushing outstanding aio requests";
		2385	for (;;) {
		2386	IO::AIO::flush;
		2387	Coro::cede;
		2388	last unless IO::AIO::nreqs;
		2389	warn "iterate...";
		2390	}
		2391
1871	# cancel all extension coros	2392	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2393	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2394	%EXT_CORO = ();
1874		2395
1875	# unload all extensions	2396	warn "removing commands";
1876	for (@exts) {	2397	%COMMAND = ();
		2398
		2399	warn "removing ext commands";
		2400	%EXTCMD = ();
		2401
		2402	warn "unloading/nuking all extensions";
		2403	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2404	warn "... unloading $pkg";
1878	unload_extension $_;	2405
		2406	if (my $cb = $pkg->can ("unload")) {
		2407	eval {
		2408	$cb->($pkg);
		2409	1
		2410	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2411	}
1880		2412
		2413	warn "... nuking $pkg";
		2414	Symbol::delete_package $pkg;
		2415	}
		2416
1881	# unload all modules loaded from $LIBDIR	2417	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2418	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2419	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2420
1885	warn "removing <$k>";	2421	warn "... unloading $k";
1886	delete $INC{$k};	2422	delete $INC{$k};
1887		2423
1888	$k =~ s/\.pm$//;	2424	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2425	$k =~ s/\//::/g;
1890		2426
…		…
1893	}	2429	}
1894		2430
1895	Symbol::delete_package $k;	2431	Symbol::delete_package $k;
1896	}	2432	}
1897		2433
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2434	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2435	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2436	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2437
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2438	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2439	delete $INC{"cf.pm"};
1911		2440
1912	# don't, removes xs symbols, too,	2441	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2442	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2443	#Symbol::delete_package __PACKAGE__;
1915		2444
1916	# reload cf.pm	2445	warn "unload completed, starting to reload now";
		2446
1917	warn "reloading cf.pm";	2447	warn "reloading cf.pm";
1918	require cf;	2448	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2450
1921	# load config and database again	2451	warn "loading config and database again";
1922	cf::cfg_load;	2452	cf::cfg_load;
1923	cf::db_load;	2453	cf::db_load;
1924		2454
1925	# load extensions
1926	warn "load extensions";	2455	warn "loading extensions";
1927	cf::load_extensions;	2456	cf::load_extensions;
1928		2457
1929	# reattach attachments to objects	2458	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2459	_global_reattach;
		2460	warn "reattaching attachments to maps";
		2461	reattach $_ for values %MAP;
		2462
		2463	warn "restarting server ticker";
		2464
		2465	$TICK_WATCHER->start;
1932	};	2466	};
1933		2467
1934	if ($@) {	2468	if ($@) {
1935	warn $@;	2469	warn $@;
1936	warn "error while reloading, exiting.";	2470	warn "error while reloading, exiting.";
1937	exit 1;	2471	exit 1;
1938	}	2472	}
1939		2473
1940	warn "reloaded successfully";	2474	warn "reloaded";
1941	};	2475	};
1942		2476
1943	#############################################################################	2477	our $RELOAD_WATCHER; # used only during reload
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2478
1988	register_command "reload" => sub {	2479	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2480	my ($who, $arg) = @_;
1990		2481
1991	if ($who->flag (FLAG_WIZ)) {	2482	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2483	$who->message ("reloading server.");
		2484
		2485	# doing reload synchronously and two reloads happen back-to-back,
		2486	# coro crashes during coro_state_free->destroy here.
		2487
		2488	$RELOAD_WATCHER ||= Event->timer (
		2489	reentrant => 0,
		2490	after => 0,
		2491	data => WF_AUTOCANCEL,
		2492	cb => sub {
1993	reload;	2493	reload;
1994	$who->message ("end of reload.");	2494	undef $RELOAD_WATCHER;
		2495	},
		2496	);
1995	}	2497	}
1996	};	2498	};
1997		2499
1998	unshift @INC, $LIBDIR;	2500	unshift @INC, $LIBDIR;
		2501
		2502	my $bug_warning = 0;
1999		2503
2000	$TICK_WATCHER = Event->timer (	2504	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2505	reentrant => 0,
		2506	parked => 1,
2002	prio => 0,	2507	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2508	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2509	data => WF_AUTOCANCEL,
2005	cb => sub {	2510	cb => sub {
2006	unless ($FREEZE) {	2511	if ($Coro::current != $Coro::main) {
		2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2513	unless ++$bug_warning > 10;
		2514	return;
		2515	}
		2516
		2517	$NOW = Event::time;
		2518
2007	cf::server_tick; # one server iteration	2519	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2520	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2521	$NEXT_TICK += $TICK;
		2522
		2523	$WAIT_FOR_TICK->broadcast;
		2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2525
		2526	Event::sweep;
		2527	Coro::cede_notself;
		2528
		2529	# my $AFTER = Event::time;
		2530	# warn $AFTER - $NOW;#d#
2012		2531
2013	# if we are delayed by four ticks or more, skip them all	2532	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2534
2016	$TICK_WATCHER->at ($NEXT_TICK);	2535	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2536	$TICK_WATCHER->start;
2018	},	2537	},
2019	);	2538	);
2020		2539
2021	IO::AIO::max_poll_time $TICK * 0.2;	2540	IO::AIO::max_poll_time $TICK * 0.1;
2022		2541
2023	Event->io (	2542	undef $Coro::AIO::WATCHER;
		2543	$AIO_POLL_WATCHER = Event->io (
		2544	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2545	fd => IO::AIO::poll_fileno,
2025	poll => 'r',	2546	poll => 'r',
2026	prio => 5,	2547	prio => 6,
2027	data => WF_AUTOCANCEL,	2548	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,	2549	cb => \&IO::AIO::poll_cb,
2029	);	2550	);
2030		2551
2031	Event->timer (	2552	$WRITE_RUNTIME_WATCHER = Event->timer (
		2553	reentrant => 0,
2032	data => WF_AUTOCANCEL,	2554	data => WF_AUTOCANCEL,
2033	after => 0,	2555	after => 1,
2034	interval => 10,	2556	interval => 10,
2035	cb => sub {	2557	prio => 6, # keep it lowest so it acts like a watchdog
2036	(Coro::unblock_sub {	2558	cb => Coro::unblock_sub {
2037	write_runtime	2559	write_runtime
2038	or warn "ERROR: unable to write runtime file: $!";	2560	or warn "ERROR: unable to write runtime file: $!";
2039	})->();
2040	},	2561	},
2041	);	2562	);
2042		2563
		2564	END { cf::emergency_save }
		2565
2043	1	2566	1
2044		2567

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