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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.117 by root, Mon Jan 1 17:50:26 2007 UTC vs.
Revision 1.203 by root, Thu Feb 1 19:40:42 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 { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		378
403	#############################################################################	379	#############################################################################
404		380
405	=head2 ATTACHABLE OBJECTS	381	=head2 ATTACHABLE OBJECTS
406		382
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	509	our @CB_MAP = ();
534		510
535	my %attachment;	511	my %attachment;
536		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
537	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
539		521
540	use sort 'stable';	522	use sort 'stable';
541		523
…		…
712	# object support	694	# object support
713		695
714	sub reattach {	696	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		701
718	my $registry = $obj->registry;	702	my $registry = $obj->registry;
719		703
720	@$registry = ();	704	@$registry = ();
721		705
…		…
792	}	776	}
793	} else {	777	} else {
794	aio_unlink $filename;	778	aio_unlink $filename;
795	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
796	}	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	}
797	}	787	}
798	}	788	}
799		789
800	sub object_freezer_as_string {	790	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	791	my ($rdata, $objs) = @_;
…		…
807		797
808	sub object_thawer_load {	798	sub object_thawer_load {
809	my ($filename) = @_;	799	my ($filename) = @_;
810		800
811	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$//;
812		805
813	(aio_load $filename, $data) >= 0	806	(aio_load $filename, $data) >= 0
814	or return;	807	or return;
815		808
816	unless (aio_stat "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
818	or return;	811	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
820	}	813	}
821		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	817	return ($data, $av);
823	}	818	}
824		819
825	#############################################################################	820	#############################################################################
826	# command handling &c	821	# command handling &c
…		…
851	=cut	846	=cut
852		847
853	sub register_extcmd {	848	sub register_extcmd {
854	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
855		850
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
860	}	852	}
861		853
862	cf::player->attach (	854	cf::player->attach (
863	on_command => sub {	855	on_command => sub {
864	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
877		869
878	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
879		871
880	if (ref $msg) {	872	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	876	}
885	}	877	}
886	} else {	878	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		881
890	cf::override;	882	cf::override;
891	},	883	},
892	);	884	);
893		885
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	886	sub load_extension {
901	my ($path) = @_;	887	my ($path) = @_;
902		888
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	890	my $base = $1;
905	my $pkg = $1;	891	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
908		894
909	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
910		896
911	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
912	or die "$path: $!";	898	or die "$path: $!";
913		899
914	my $source =	900	my $source =
915	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
918	. "\n};\n1";	904	. "\n};\n1";
919		905
920	eval $source	906	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	908	: "extension disabled.\n";
923		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	910	warn $@;
925	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
926		912	exit 1;
927	# no strict 'refs';	913	}
928	# @{"$pkg\::ISA"} = ext::;	914	die $@;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	915	}
943		916
944	# remove commands	917	push @EXTS, $pkg;
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}	918	}
969		919
970	sub load_extensions {	920	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	922	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
977	}	927	}
978	}	928	}
979		929
980	#############################################################################	930	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017		931
1018	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1019		933
1020	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1021		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1022	=head3 cf::player	942	=head3 cf::player
1023		943
1024	=over 4	944	=over 4
1025		945
1026	=item cf::player::exists $login	946	=item cf::player::find $login
1027		947
1028	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1029		949
1030	=cut	950	=cut
1031		951
1032	sub cf::player::exists($) {	952	sub playerdir($) {
1033	cf::player::find $_[0]	953	cf::localdir
1034	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
1035	}	1100	}
1036		1101
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038		1103
1039	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1040		1105
1041	=cut	1106	=cut
1042		1107
1043	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1045		1110
1046	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1047		1112
1048	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1049	}	1114	}
		1115
		1116	package cf;
1050		1117
1051	=back	1118	=back
1052		1119
1053		1120
1054	=head3 cf::map	1121	=head3 cf::map
…		…
1060	package cf::map;	1127	package cf::map;
1061		1128
1062	use Fcntl;	1129	use Fcntl;
1063	use Coro::AIO;	1130	use Coro::AIO;
1064		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1065	our $MAX_RESET = 7200;	1136	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1137	our $DEFAULT_RESET = 3000;
1067		1138
1068	sub generate_random_map {	1139	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1142	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$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},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(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, $path
1085	}	1284	}
1086		1285
1087	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1088	# all maps in C++...	1287	# all maps in C++...
1089	sub change_all_map_light {	1288	sub change_all_map_light {
1090	my ($change) = @_;	1289	my ($change) = @_;
1091		1290
1092	$_->change_map_light ($change) for values %cf::MAP;	1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
1093	}	1293	}
1094		1294
		1295	sub unlink_save {
		1296	my ($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
1095	sub try_load_header($) {	1308	sub load_header_from($) {
1096	my ($path) = @_;	1309	my ($self, $path) = @_;
1097		1310
1098	utf8::encode $path;	1311	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1312	#aio_open $path, O_RDONLY, 0
		1313	# or return;
		1314
		1315	$self->_load_header ($path)
1100	or return;	1316	or return;
1101		1317
1102	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
1103	or return;	1361	or return;
		1362	$self->prepare_orig;
		1363	}
1104		1364
1105	$map->load_header ($path)	1365	1
1106	or return;
1107
1108	$map->{load_path} = $path;
1109
1110	$map
1111	}	1366	}
1112		1367
		1368	sub find;
1113	sub find_map {	1369	sub find {
1114	my ($path, $origin) = @_;	1370	my ($path, $origin) = @_;
1115		1371
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1372	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1373
		1374	cf::lock_wait "map_find:$path";
		1375
1121	$cf::MAP{$key} || do {	1376	$cf::MAP{$path} || do {
1122	# do it the slow way	1377	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1378	my $map = new_from_path cf::map $path
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1379	or return;
1137		1380
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->{last_save} = $cf::RUNTIME;	1381	$map->{last_save} = $cf::RUNTIME;
1149	$map->last_access ($cf::RUNTIME);
1150		1382
1151	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;
1152	$map->reset;	1389	$map->reset;
1153	$map = find_map $path;	1390	undef $guard;
		1391	return find $path;
1154	}	1392	}
1155		1393
1156	$cf::MAP{$key} = $map	1394	$cf::MAP{$path} = $map
1157	}	1395	}
1158	}	1396	}
		1397
		1398	sub pre_load { }
		1399	sub post_load { }
1159		1400
1160	sub load {	1401	sub load {
1161	my ($self) = @_;	1402	my ($self) = @_;
1162		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
1163	return if $self->in_memory != cf::MAP_SWAPPED;	1409	return if $self->in_memory != cf::MAP_SWAPPED;
1164		1410
1165	$self->in_memory (cf::MAP_LOADING);	1411	$self->in_memory (cf::MAP_LOADING);
1166		1412
1167	my $path = $self->{path};
1168
1169	$self->alloc;	1413	$self->alloc;
		1414
		1415	$self->pre_load;
		1416
1170	$self->load_objects ($self->{load_path}, 1)	1417	$self->_load_objects ($self->{load_path}, 1)
1171	or return;	1418	or return;
1172		1419
1173	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1174	if delete $self->{load_original};	1421	if delete $self->{load_original};
1175		1422
1176	if (my $uniq = $path->uniq_path) {	1423	if (my $uniq = $self->uniq_path) {
1177	utf8::encode $uniq;	1424	utf8::encode $uniq;
1178	if (aio_open $uniq, O_RDONLY, 0) {	1425	if (aio_open $uniq, O_RDONLY, 0) {
1179	$self->clear_unique_items;	1426	$self->clear_unique_items;
1180	$self->load_objects ($uniq, 0);	1427	$self->_load_objects ($uniq, 0);
1181	}	1428	}
1182	}	1429	}
		1430
		1431	Coro::cede;
1183		1432
1184	# now do the right thing for maps	1433	# now do the right thing for maps
1185	$self->link_multipart_objects;	1434	$self->link_multipart_objects;
1186		1435
1187	if ($self->{path}->is_style_map) {	1436	unless ($self->{deny_activate}) {
1188	$self->{deny_save} = 1;	1437	$self->decay_objects;
1189	$self->{deny_reset} = 1;
1190	} else {
1191	$self->fix_auto_apply;	1438	$self->fix_auto_apply;
1192	$self->decay_objects;
1193	$self->update_buttons;	1439	$self->update_buttons;
		1440	Coro::cede;
1194	$self->set_darkness_map;	1441	$self->set_darkness_map;
1195	$self->difficulty ($self->estimate_difficulty)	1442	$self->difficulty ($self->estimate_difficulty)
1196	unless $self->difficulty;	1443	unless $self->difficulty;
		1444	Coro::cede;
1197	$self->activate;	1445	$self->activate;
1198	}	1446	}
1199		1447
		1448	$self->post_load;
		1449
1200	$self->in_memory (cf::MAP_IN_MEMORY);	1450	$self->in_memory (cf::MAP_IN_MEMORY);
1201	}	1451	}
1202		1452
1203	sub load_map_sync {	1453	sub customise_for {
		1454	my ($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	$neigh->load;
		1483	}
		1484	}
		1485
		1486	sub find_sync {
1204	my ($path, $origin) = @_;	1487	my ($path, $origin) = @_;
1205		1488
1206	#warn "load_map_sync<$path, $origin>\n";#d#	1489	cf::sync_job { find $path, $origin }
		1490	}
1207		1491
1208	cf::sync_job {	1492	sub do_load_sync {
1209	my $map = cf::map::find_map $path, $origin	1493	my ($map) = @_;
1210	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;
1211	$map->load;	1516	$map->load;
1212	$map	1517
		1518	delete $MAP_PREFETCH{$path};
		1519	}
		1520	}
		1521	undef $MAP_PREFETCHER;
1213	}	1522	};
		1523	$MAP_PREFETCHER->prio (6);
		1524
		1525	()
1214	}	1526	}
1215		1527
1216	sub save {	1528	sub save {
1217	my ($self) = @_;	1529	my ($self) = @_;
1218		1530
		1531	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1532
1219	$self->{last_save} = $cf::RUNTIME;	1533	$self->{last_save} = $cf::RUNTIME;
1220		1534
1221	return unless $self->dirty;	1535	return unless $self->dirty;
1222		1536
1223	my $save = $self->{path}->save_path; utf8::encode $save;	1537	my $save = $self->save_path; utf8::encode $save;
1224	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1538	my $uniq = $self->uniq_path; utf8::encode $uniq;
1225		1539
1226	$self->{load_path} = $save;	1540	$self->{load_path} = $save;
1227		1541
1228	return if $self->{deny_save};	1542	return if $self->{deny_save};
1229		1543
		1544	local $self->{last_access} = $self->last_access;#d#
		1545
		1546	cf::async {
		1547	$_->contr->save for $self->players;
		1548	};
		1549
1230	if ($uniq) {	1550	if ($uniq) {
1231	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1232	$self->save_objects ($uniq, cf::IO_UNIQUES);	1552	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1233	} else {	1553	} else {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1554	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1235	}	1555	}
1236	}	1556	}
1237		1557
1238	sub swap_out {	1558	sub swap_out {
1239	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;
1240		1565
1241	return if $self->players;	1566	return if $self->players;
1242	return if $self->in_memory != cf::MAP_IN_MEMORY;	1567	return if $self->in_memory != cf::MAP_IN_MEMORY;
1243	return if $self->{deny_save};	1568	return if $self->{deny_save};
1244		1569
1245	$self->save;
1246	$self->clear;	1570	$self->clear;
1247	$self->in_memory (cf::MAP_SWAPPED);	1571	$self->in_memory (cf::MAP_SWAPPED);
1248	}	1572	}
1249		1573
1250	sub reset_at {	1574	sub reset_at {
1251	my ($self) = @_;	1575	my ($self) = @_;
1252		1576
1253	# TODO: safety, remove and allow resettable per-player maps	1577	# TODO: safety, remove and allow resettable per-player maps
1254	return 1e99 if $self->{path}{user_rel};	1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1255	return 1e99 if $self->{deny_reset};	1579	return 1e99 if $self->{deny_reset};
1256		1580
1257	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1258	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1259		1583
…		…
1264	my ($self) = @_;	1588	my ($self) = @_;
1265		1589
1266	$self->reset_at <= $cf::RUNTIME	1590	$self->reset_at <= $cf::RUNTIME
1267	}	1591	}
1268		1592
1269	sub unlink_save {
1270	my ($self) = @_;
1271
1272	utf8::encode (my $save = $self->{path}->save_path);
1273	aioreq_pri 3; IO::AIO::aio_unlink $save;
1274	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1275	}
1276
1277	sub rename {
1278	my ($self, $new_path) = @_;
1279
1280	$self->unlink_save;
1281
1282	delete $cf::MAP{$self->path};
1283	$self->{path} = new cf::path $new_path;
1284	$self->path ($self->{path}->as_string);
1285	$cf::MAP{$self->path} = $self;
1286
1287	$self->save;
1288	}
1289
1290	sub reset {	1593	sub reset {
1291	my ($self) = @_;	1594	my ($self) = @_;
1292		1595
		1596	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1597
1293	return if $self->players;	1598	return if $self->players;
1294	return if $self->{path}{user_rel};#d#	1599	return if $self->isa ("ext::map_per_player");#d#
1295		1600
1296	warn "resetting map ", $self->path;#d#	1601	warn "resetting map ", $self->path;#d#
1297		1602
1298	delete $cf::MAP{$self->path};	1603	delete $cf::MAP{$self->path};
		1604
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	$self->clear;
1299		1607
1300	$_->clear_links_to ($self) for values %cf::MAP;	1608	$_->clear_links_to ($self) for values %cf::MAP;
1301		1609
1302	$self->unlink_save;	1610	$self->unlink_save;
1303	$self->destroy;	1611	$self->destroy;
…		…
1306	my $nuke_counter = "aaaa";	1614	my $nuke_counter = "aaaa";
1307		1615
1308	sub nuke {	1616	sub nuke {
1309	my ($self) = @_;	1617	my ($self) = @_;
1310		1618
		1619	delete $cf::MAP{$self->path};
		1620
		1621	$self->unlink_save;
		1622
		1623	bless $self, "cf::map";
		1624	delete $self->{deny_reset};
1311	$self->{deny_save} = 1;	1625	$self->{deny_save} = 1;
1312	$self->reset_timeout (1);	1626	$self->reset_timeout (1);
1313	$self->rename ("{nuke}/" . ($nuke_counter++));	1627	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1628
		1629	$cf::MAP{$self->path} = $self;
		1630
1314	$self->reset; # polite request, might not happen	1631	$self->reset; # polite request, might not happen
1315	}	1632	}
1316		1633
1317	sub customise_for {	1634	=item cf::map::unique_maps
1318	my ($map, $ob) = @_;
1319		1635
1320	if ($map->per_player) {	1636	Returns an arrayref of paths of all shared maps that have
1321	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1637	instantiated unique items. May block.
1322	}
1323		1638
1324	$map	1639	=cut
1325	}
1326		1640
1327	sub emergency_save {	1641	sub unique_maps() {
1328	local $cf::FREEZE = 1;	1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1643	or return;
1329		1644
1330	warn "enter emergency map save\n";	1645	my @paths;
1331		1646
1332	cf::sync_job {	1647	for (@$files) {
1333	warn "begin emergency map save\n";	1648	utf8::decode $_;
1334	$_->save for values %cf::MAP;	1649	next if /\.pst$/;
		1650	next unless /^$PATH_SEP/o;
		1651
		1652	push @paths, cf::map::normalise $_;
1335	};	1653	}
1336		1654
1337	warn "end emergency map save\n";	1655	\@paths
1338	}	1656	}
1339		1657
1340	package cf;	1658	package cf;
1341		1659
1342	=back	1660	=back
1343		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
1344		1688
1345	=head3 cf::object::player	1689	=head3 cf::object::player
1346		1690
1347	=over 4	1691	=over 4
1348		1692
…		…
1388		1732
1389	=item $player_object->enter_link	1733	=item $player_object->enter_link
1390		1734
1391	Freezes the player and moves him/her to a special map (C<{link}>).	1735	Freezes the player and moves him/her to a special map (C<{link}>).
1392		1736
1393	The player should be reaosnably safe there for short amounts of time. You	1737	The player should be reasonably safe there for short amounts of time. You
1394	I<MUST> call C<leave_link> as soon as possible, though.	1738	I<MUST> call C<leave_link> as soon as possible, though.
1395		1739
		1740	Will never block.
		1741
1396	=item $player_object->leave_link ($map, $x, $y)	1742	=item $player_object->leave_link ($map, $x, $y)
1397		1743
1398	Moves the player out of the specila link map onto the given map. If the	1744	Moves the player out of the special C<{link}> map onto the specified
1399	map is not valid (or omitted), the player will be moved back to the	1745	map. If the map is not valid (or omitted), the player will be moved back
1400	location he/she was before the call to C<enter_link>, or, if that fails,	1746	to the location he/she was before the call to C<enter_link>, or, if that
1401	to the emergency map position.	1747	fails, to the emergency map position.
1402		1748
1403	Might block.	1749	Might block.
1404		1750
1405	=cut	1751	=cut
		1752
		1753	sub link_map {
		1754	unless ($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	$LINK_MAP
		1761	}
1406		1762
1407	sub cf::object::player::enter_link {	1763	sub cf::object::player::enter_link {
1408	my ($self) = @_;	1764	my ($self) = @_;
1409		1765
1410	return if $self->map == $LINK_MAP;	1766	$self->deactivate_recursive;
1411		1767
		1768	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1769
1412	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1413	if $self->map;	1771	if $self->map;
1414		1772
1415	$self->enter_map ($LINK_MAP, 20, 20);	1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1416	$self->deactivate_recursive;
1417	}	1774	}
1418		1775
1419	sub cf::object::player::leave_link {	1776	sub cf::object::player::leave_link {
1420	my ($self, $map, $x, $y) = @_;	1777	my ($self, $map, $x, $y) = @_;
1421		1778
1422	my $link_pos = delete $self->{_link_pos};	1779	my $link_pos = delete $self->{_link_pos};
1423		1780
1424	unless ($map) {	1781	unless ($map) {
1425	# restore original map position	1782	# restore original map position
1426	($map, $x, $y) = @{ $link_pos || [] };	1783	($map, $x, $y) = @{ $link_pos || [] };
1427	$map = cf::map::find_map $map;	1784	$map = cf::map::find $map;
1428		1785
1429	unless ($map) {	1786	unless ($map) {
1430	($map, $x, $y) = @$EMERGENCY_POSITION;	1787	($map, $x, $y) = @$EMERGENCY_POSITION;
1431	$map = cf::map::find_map $map	1788	$map = cf::map::find $map
1432	or die "FATAL: cannot load emergency map\n";	1789	or die "FATAL: cannot load emergency map\n";
1433	}	1790	}
1434	}	1791	}
1435		1792
1436	($x, $y) = (-1, -1)	1793	($x, $y) = (-1, -1)
…		…
1439	# use -1 or undef as default coordinates, not 0, 0	1796	# use -1 or undef as default coordinates, not 0, 0
1440	($x, $y) = ($map->enter_x, $map->enter_y)	1797	($x, $y) = ($map->enter_x, $map->enter_y)
1441	if $x <=0 && $y <= 0;	1798	if $x <=0 && $y <= 0;
1442		1799
1443	$map->load;	1800	$map->load;
		1801	$map->load_diag;
1444		1802
		1803	return unless $self->contr->active;
1445	$self->activate_recursive;	1804	$self->activate_recursive;
1446	$self->enter_map ($map, $x, $y);	1805	$self->enter_map ($map, $x, $y);
1447	}	1806	}
1448		1807
		1808	cf::player->attach (
		1809	on_logout => sub {
		1810	my ($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
1449	=item $player_object->goto_map ($map, $x, $y)	1840	=item $player_object->goto ($path, $x, $y)
1450		1841
1451	=cut	1842	=cut
1452		1843
1453	sub cf::object::player::goto_map {	1844	sub cf::object::player::goto {
1454	my ($self, $path, $x, $y) = @_;	1845	my ($self, $path, $x, $y) = @_;
1455		1846
1456	$self->enter_link;	1847	$self->enter_link;
1457		1848
1458	(Coro::async {	1849	(async {
1459	$path = new cf::path $path;	1850	my $map = eval {
1460
1461	my $map = cf::map::find_map $path->as_string;	1851	my $map = cf::map::find $path;
1462	$map = $map->customise_for ($self) if $map;	1852	$map = $map->customise_for ($self) if $map;
1463
1464	warn "entering ", $map->path, " at ($x, $y)\n"
1465	if $map;	1853	$map
1466		1854	} or
1467	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1468		1856
1469	$self->leave_link ($map, $x, $y);	1857	$self->leave_link ($map, $x, $y);
1470	})->prio (1);	1858	})->prio (1);
1471	}	1859	}
1472		1860
…		…
1476		1864
1477	sub parse_random_map_params {	1865	sub parse_random_map_params {
1478	my ($spec) = @_;	1866	my ($spec) = @_;
1479		1867
1480	my $rmp = { # defaults	1868	my $rmp = { # defaults
1481	xsize => 10,	1869	xsize => (cf::rndm 15, 40),
1482	ysize => 10,	1870	ysize => (cf::rndm 15, 40),
		1871	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1872	#layout => string,
1483	};	1873	};
1484		1874
1485	for (split /\n/, $spec) {	1875	for (split /\n/, $spec) {
1486	my ($k, $v) = split /\s+/, $_, 2;	1876	my ($k, $v) = split /\s+/, $_, 2;
1487		1877
…		…
1491	$rmp	1881	$rmp
1492	}	1882	}
1493		1883
1494	sub prepare_random_map {	1884	sub prepare_random_map {
1495	my ($exit) = @_;	1885	my ($exit) = @_;
		1886
		1887	my $guard = cf::lock_acquire "exit_prepare:$exit";
1496		1888
1497	# all this does is basically replace the /! path by	1889	# all this does is basically replace the /! path by
1498	# a new random map path (?random/...) with a seed	1890	# a new random map path (?random/...) with a seed
1499	# that depends on the exit object	1891	# that depends on the exit object
1500		1892
1501	my $rmp = parse_random_map_params $exit->msg;	1893	my $rmp = parse_random_map_params $exit->msg;
1502		1894
1503	if ($exit->map) {	1895	if ($exit->map) {
1504	$rmp->{region} = $exit->map->region_name;	1896	$rmp->{region} = $exit->region->name;
1505	$rmp->{origin_map} = $exit->map->path;	1897	$rmp->{origin_map} = $exit->map->path;
1506	$rmp->{origin_x} = $exit->x;	1898	$rmp->{origin_x} = $exit->x;
1507	$rmp->{origin_y} = $exit->y;	1899	$rmp->{origin_y} = $exit->y;
1508	}	1900	}
1509		1901
1510	$rmp->{random_seed} ||= $exit->random_seed;	1902	$rmp->{random_seed} ||= $exit->random_seed;
1511		1903
1512	my $data = cf::to_json $rmp;	1904	my $data = cf::to_json $rmp;
1513	my $md5 = Digest::MD5::md5_hex $data;	1905	my $md5 = Digest::MD5::md5_hex $data;
		1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1514		1907
1515	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) {
1516	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;
1517		1912
1518	$exit->slaying ("?random/$md5");	1913	$exit->slaying ("?random/$md5");
1519	$exit->msg (undef);	1914	$exit->msg (undef);
1520	}	1915	}
1521	}	1916	}
…		…
1523	sub cf::object::player::enter_exit {	1918	sub cf::object::player::enter_exit {
1524	my ($self, $exit) = @_;	1919	my ($self, $exit) = @_;
1525		1920
1526	return unless $self->type == cf::PLAYER;	1921	return unless $self->type == cf::PLAYER;
1527		1922
		1923	if ($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
1528	$self->enter_link;	1932	$self->enter_link;
1529		1933
1530	(Coro::async {	1934	(async {
		1935	$self->deactivate_recursive; # just to be sure
1531	unless (eval {	1936	unless (eval {
1532		1937	$self->goto ($slaying, $hp, $sp);
1533	prepare_random_map $exit
1534	if $exit->slaying eq "/!";
1535
1536	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1537	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1538		1938
1539	1;	1939	1;
1540	}) {	1940	}) {
1541	$self->message ("Something went wrong deep within the crossfire server. "	1941	$self->message ("Something went wrong deep within the crossfire server. "
1542	. "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. "
1543	. "Please report this to the dungeon master",	1943	. "Please report this to the dungeon master!",
1544	cf::NDI_UNIQUE | cf::NDI_RED);	1944	cf::NDI_UNIQUE | cf::NDI_RED);
1545		1945
1546	warn "ERROR in enter_exit: $@";	1946	warn "ERROR in enter_exit: $@";
1547	$self->leave_link;	1947	$self->leave_link;
1548	}	1948	}
…		…
1599	on_reply => sub {	1999	on_reply => sub {
1600	my ($ns, $msg) = @_;	2000	my ($ns, $msg) = @_;
1601		2001
1602	# this weird shuffling is so that direct followup queries	2002	# this weird shuffling is so that direct followup queries
1603	# get handled first	2003	# get handled first
1604	my $queue = delete $ns->{query_queue};	2004	my $queue = delete $ns->{query_queue}
		2005	or return; # be conservative, not sure how that can happen, but we saw a crash here
1605		2006
1606	(shift @$queue)->[1]->($msg);	2007	(shift @$queue)->[1]->($msg);
		2008	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1607		2009
1608	push @{ $ns->{query_queue} }, @$queue;	2010	push @{ $ns->{query_queue} }, @$queue;
1609		2011
1610	if (@{ $ns->{query_queue} } == @$queue) {	2012	if (@{ $ns->{query_queue} } == @$queue) {
1611	if (@$queue) {	2013	if (@$queue) {
…		…
1615	}	2017	}
1616	}	2018	}
1617	},	2019	},
1618	);	2020	);
1619		2021
1620	=item $client->coro (\&cb)	2022	=item $client->async (\&cb)
1621		2023
1622	Create a new coroutine, running the specified callback. The coroutine will	2024	Create a new coroutine, running the specified callback. The coroutine will
1623	be automatically cancelled when the client gets destroyed (e.g. on logout,	2025	be automatically cancelled when the client gets destroyed (e.g. on logout,
1624	or loss of connection).	2026	or loss of connection).
1625		2027
1626	=cut	2028	=cut
1627		2029
1628	sub cf::client::coro {	2030	sub cf::client::async {
1629	my ($self, $cb) = @_;	2031	my ($self, $cb) = @_;
1630		2032
1631	my $coro; $coro = async {	2033	my $coro = &Coro::async ($cb);
1632	eval {
1633	$cb->();
1634	};
1635	warn $@ if $@;
1636	};
1637		2034
1638	$coro->on_destroy (sub {	2035	$coro->on_destroy (sub {
1639	delete $self->{_coro}{$coro+0};	2036	delete $self->{_coro}{$coro+0};
1640	});	2037	});
1641		2038
…		…
1813		2210
1814	{	2211	{
1815	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
1816		2213
1817	sub db_load() {	2214	sub db_load() {
1818	warn "loading database $path\n";#d# remove later
1819	$DB = stat $path ? Storable::retrieve $path : { };	2215	$DB = stat $path ? Storable::retrieve $path : { };
1820	}	2216	}
1821		2217
1822	my $pid;	2218	my $pid;
1823		2219
1824	sub db_save() {	2220	sub db_save() {
1825	warn "saving database $path\n";#d# remove later
1826	waitpid $pid, 0 if $pid;	2221	waitpid $pid, 0 if $pid;
1827	if (0 == ($pid = fork)) {	2222	if (0 == ($pid = fork)) {
1828	$DB->{_meta}{version} = 1;	2223	$DB->{_meta}{version} = 1;
1829	Storable::nstore $DB, "$path~";	2224	Storable::nstore $DB, "$path~";
1830	rename "$path~", $path;	2225	rename "$path~", $path;
…		…
1837	sub db_sync() {	2232	sub db_sync() {
1838	db_save if $dirty;	2233	db_save if $dirty;
1839	undef $dirty;	2234	undef $dirty;
1840	}	2235	}
1841		2236
1842	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2237	my $idle = Event->idle (
1843	db_sync;	2238	reentrant => 0,
		2239	min => 10,
		2240	max => 20,
		2241	repeat => 0,
		2242	data => WF_AUTOCANCEL,
		2243	cb => \&db_sync,
1844	});	2244	);
1845		2245
1846	sub db_dirty() {	2246	sub db_dirty() {
1847	$dirty = 1;	2247	$dirty = 1;
1848	$idle->start;	2248	$idle->start;
1849	}	2249	}
…		…
1870	},	2270	},
1871	);	2271	);
1872	}	2272	}
1873		2273
1874	#############################################################################	2274	#############################################################################
1875	# the server's main()	2275	# the server's init and main functions
		2276
		2277	sub load_resources {
		2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2279	or die "unable to load regions file\n";#d#
		2280	}
1876		2281
1877	sub cfg_load {	2282	sub cfg_load {
1878	open my $fh, "<:utf8", cf::confdir . "/config"	2283	open my $fh, "<:utf8", cf::confdir . "/config"
1879	or return;	2284	or return;
1880		2285
1881	local $/;	2286	local $/;
1882	*CFG = YAML::Syck::Load <$fh>;	2287	*CFG = YAML::Syck::Load <$fh>;
		2288
		2289	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2290
		2291	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2292	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2293
		2294	if (exists $CFG{mlockall}) {
		2295	eval {
		2296	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2297	and die "WARNING: m(un)lockall failed: $!\n";
		2298	};
		2299	warn $@ if $@;
		2300	}
		2301	}
		2302
		2303	sub init {
		2304	load_resources;
1883	}	2305	}
1884		2306
1885	sub main {	2307	sub main {
1886	# we must not ever block the main coroutine	2308	# we must not ever block the main coroutine
1887	local $Coro::idle = sub {	2309	local $Coro::idle = sub {
1888	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2310	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1889	(Coro::unblock_sub {	2311	(async {
1890	Event::one_event;	2312	Event::one_event;
1891	})->();	2313	})->prio (Coro::PRIO_MAX);
1892	};	2314	};
1893		2315
1894	cfg_load;	2316	cfg_load;
1895	db_load;	2317	db_load;
1896	load_extensions;	2318	load_extensions;
		2319
		2320	$TICK_WATCHER->start;
1897	Event::loop;	2321	Event::loop;
1898	}	2322	}
1899		2323
1900	#############################################################################	2324	#############################################################################
1901	# initialisation	2325	# initialisation and cleanup
		2326
		2327	# install some emergency cleanup handlers
		2328	BEGIN {
		2329	for my $signal (qw(INT HUP TERM)) {
		2330	Event->signal (
		2331	reentrant => 0,
		2332	data => WF_AUTOCANCEL,
		2333	signal => $signal,
		2334	prio => 0,
		2335	cb => sub {
		2336	cf::cleanup "SIG$signal";
		2337	},
		2338	);
		2339	}
		2340	}
		2341
		2342	sub emergency_save() {
		2343	my $freeze_guard = cf::freeze_mainloop;
		2344
		2345	warn "enter emergency perl save\n";
		2346
		2347	cf::sync_job {
		2348	# use a peculiar iteration method to avoid tripping on perl
		2349	# refcount bugs in for. also avoids problems with players
		2350	# and maps saved/destroyed asynchronously.
		2351	warn "begin emergency player save\n";
		2352	for my $login (keys %cf::PLAYER) {
		2353	my $pl = $cf::PLAYER{$login} or next;
		2354	$pl->valid or next;
		2355	$pl->save;
		2356	}
		2357	warn "end emergency player save\n";
		2358
		2359	warn "begin emergency map save\n";
		2360	for my $path (keys %cf::MAP) {
		2361	my $map = $cf::MAP{$path} or next;
		2362	$map->valid or next;
		2363	$map->save;
		2364	}
		2365	warn "end emergency map save\n";
		2366	};
		2367
		2368	warn "leave emergency perl save\n";
		2369	}
1902		2370
1903	sub reload() {	2371	sub reload() {
1904	# can/must only be called in main	2372	# can/must only be called in main
1905	if ($Coro::current != $Coro::main) {	2373	if ($Coro::current != $Coro::main) {
1906	warn "can only reload from main coroutine\n";	2374	warn "can only reload from main coroutine";
1907	return;	2375	return;
1908	}	2376	}
1909		2377
1910	warn "reloading...";	2378	warn "reloading...";
1911		2379
1912	local $FREEZE = 1;	2380	warn "cancelling server ticker";
		2381	$TICK_WATCHER->cancel;
		2382
1913	cf::emergency_save;	2383	cf::emergency_save;
1914		2384
1915	eval {	2385	eval {
1916	# if anything goes wrong in here, we should simply crash as we already saved	2386	# if anything goes wrong in here, we should simply crash as we already saved
1917		2387
1918	# cancel all watchers	2388	warn "syncing database to disk";
		2389	cf::db_sync;
		2390
		2391	warn "cancelling all WF_AUTOCANCEL watchers";
1919	for (Event::all_watchers) {	2392	for (Event::all_watchers) {
1920	$_->cancel if $_->data & WF_AUTOCANCEL;	2393	$_->cancel if $_->data & WF_AUTOCANCEL;
1921	}	2394	}
1922		2395
		2396	warn "flushing outstanding aio requests";
		2397	for (;;) {
		2398	IO::AIO::flush;
		2399	Coro::cede;
		2400	last unless IO::AIO::nreqs;
		2401	warn "iterate...";
		2402	}
		2403
1923	# cancel all extension coros	2404	warn "cancelling all extension coros";
1924	$_->cancel for values %EXT_CORO;	2405	$_->cancel for values %EXT_CORO;
1925	%EXT_CORO = ();	2406	%EXT_CORO = ();
1926		2407
1927	# unload all extensions	2408	warn "removing commands";
1928	for (@exts) {	2409	%COMMAND = ();
		2410
		2411	warn "removing ext commands";
		2412	%EXTCMD = ();
		2413
		2414	warn "unloading/nuking all extensions";
		2415	for my $pkg (@EXTS) {
1929	warn "unloading <$_>";	2416	warn "... unloading $pkg";
1930	unload_extension $_;	2417
		2418	if (my $cb = $pkg->can ("unload")) {
		2419	eval {
		2420	$cb->($pkg);
		2421	1
		2422	} or warn "$pkg unloaded, but with errors: $@";
1931	}	2423	}
1932		2424
		2425	warn "... nuking $pkg";
		2426	Symbol::delete_package $pkg;
		2427	}
		2428
1933	# unload all modules loaded from $LIBDIR	2429	warn "unloading all perl modules loaded from $LIBDIR";
1934	while (my ($k, $v) = each %INC) {	2430	while (my ($k, $v) = each %INC) {
1935	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2431	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1936		2432
1937	warn "removing <$k>";	2433	warn "... unloading $k";
1938	delete $INC{$k};	2434	delete $INC{$k};
1939		2435
1940	$k =~ s/\.pm$//;	2436	$k =~ s/\.pm$//;
1941	$k =~ s/\//::/g;	2437	$k =~ s/\//::/g;
1942		2438
…		…
1945	}	2441	}
1946		2442
1947	Symbol::delete_package $k;	2443	Symbol::delete_package $k;
1948	}	2444	}
1949		2445
1950	# sync database to disk
1951	cf::db_sync;
1952	IO::AIO::flush;
1953
1954	# get rid of safe::, as good as possible	2446	warn "getting rid of safe::, as good as possible";
1955	Symbol::delete_package "safe::$_"	2447	Symbol::delete_package "safe::$_"
1956	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2448	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1957		2449
1958	# remove register_script_function callbacks
1959	# TODO
1960
1961	# unload cf.pm "a bit"	2450	warn "unloading cf.pm \"a bit\"";
1962	delete $INC{"cf.pm"};	2451	delete $INC{"cf.pm"};
1963		2452
1964	# don't, removes xs symbols, too,	2453	# don't, removes xs symbols, too,
1965	# and global variables created in xs	2454	# and global variables created in xs
1966	#Symbol::delete_package __PACKAGE__;	2455	#Symbol::delete_package __PACKAGE__;
1967		2456
1968	# reload cf.pm	2457	warn "unload completed, starting to reload now";
		2458
1969	warn "reloading cf.pm";	2459	warn "reloading cf.pm";
1970	require cf;	2460	require cf;
1971	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1972		2462
1973	# load config and database again	2463	warn "loading config and database again";
1974	cf::cfg_load;	2464	cf::cfg_load;
1975	cf::db_load;	2465	cf::db_load;
1976		2466
1977	# load extensions
1978	warn "load extensions";	2467	warn "loading extensions";
1979	cf::load_extensions;	2468	cf::load_extensions;
1980		2469
1981	# reattach attachments to objects	2470	warn "reattaching attachments to objects/players";
1982	warn "reattach";
1983	_global_reattach;	2471	_global_reattach;
		2472	warn "reattaching attachments to maps";
		2473	reattach $_ for values %MAP;
		2474
		2475	warn "loading reloadable resources";
		2476	load_resources;
		2477
		2478	warn "restarting server ticker";
		2479
		2480	$TICK_WATCHER->start;
1984	};	2481	};
1985		2482
1986	if ($@) {	2483	if ($@) {
1987	warn $@;	2484	warn $@;
1988	warn "error while reloading, exiting.";	2485	warn "error while reloading, exiting.";
1989	exit 1;	2486	exit 1;
1990	}	2487	}
1991		2488
1992	warn "reloaded successfully";	2489	warn "reloaded";
1993	};	2490	};
1994		2491
1995	#############################################################################	2492	our $RELOAD_WATCHER; # used only during reload
1996
1997	unless ($LINK_MAP) {
1998	$LINK_MAP = cf::map::new;
1999
2000	$LINK_MAP->width (41);
2001	$LINK_MAP->height (41);
2002	$LINK_MAP->alloc;
2003	$LINK_MAP->path ("{link}");
2004	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2005	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2006
2007	# dirty hack because... archetypes are not yet loaded
2008	Event->timer (
2009	after => 2,
2010	cb => sub {
2011	$_[0]->w->cancel;
2012
2013	# provide some exits "home"
2014	my $exit = cf::object::new "exit";
2015
2016	$exit->slaying ($EMERGENCY_POSITION->[0]);
2017	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2018	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2019
2020	$LINK_MAP->insert ($exit->clone, 19, 19);
2021	$LINK_MAP->insert ($exit->clone, 19, 20);
2022	$LINK_MAP->insert ($exit->clone, 19, 21);
2023	$LINK_MAP->insert ($exit->clone, 20, 19);
2024	$LINK_MAP->insert ($exit->clone, 20, 21);
2025	$LINK_MAP->insert ($exit->clone, 21, 19);
2026	$LINK_MAP->insert ($exit->clone, 21, 20);
2027	$LINK_MAP->insert ($exit->clone, 21, 21);
2028
2029	$exit->destroy;
2030	});
2031
2032	$LINK_MAP->{deny_save} = 1;
2033	$LINK_MAP->{deny_reset} = 1;
2034
2035	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2036	}
2037
2038	register "<global>", __PACKAGE__;
2039		2493
2040	register_command "reload" => sub {	2494	register_command "reload" => sub {
2041	my ($who, $arg) = @_;	2495	my ($who, $arg) = @_;
2042		2496
2043	if ($who->flag (FLAG_WIZ)) {	2497	if ($who->flag (FLAG_WIZ)) {
2044	$who->message ("start of reload.");	2498	$who->message ("reloading server.");
		2499
		2500	# doing reload synchronously and two reloads happen back-to-back,
		2501	# coro crashes during coro_state_free->destroy here.
		2502
		2503	$RELOAD_WATCHER ||= Event->timer (
		2504	reentrant => 0,
		2505	after => 0,
		2506	data => WF_AUTOCANCEL,
		2507	cb => sub {
2045	reload;	2508	reload;
2046	$who->message ("end of reload.");	2509	undef $RELOAD_WATCHER;
		2510	},
		2511	);
2047	}	2512	}
2048	};	2513	};
2049		2514
2050	unshift @INC, $LIBDIR;	2515	unshift @INC, $LIBDIR;
		2516
		2517	my $bug_warning = 0;
2051		2518
2052	$TICK_WATCHER = Event->timer (	2519	$TICK_WATCHER = Event->timer (
2053	reentrant => 0,	2520	reentrant => 0,
		2521	parked => 1,
2054	prio => 0,	2522	prio => 0,
2055	at => $NEXT_TICK || $TICK,	2523	at => $NEXT_TICK || $TICK,
2056	data => WF_AUTOCANCEL,	2524	data => WF_AUTOCANCEL,
2057	cb => sub {	2525	cb => sub {
2058	unless ($FREEZE) {	2526	if ($Coro::current != $Coro::main) {
		2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2528	unless ++$bug_warning > 10;
		2529	return;
		2530	}
		2531
		2532	$NOW = Event::time;
		2533
2059	cf::server_tick; # one server iteration	2534	cf::server_tick; # one server iteration
2060	$RUNTIME += $TICK;	2535	$RUNTIME += $TICK;
2061	}
2062
2063	$NEXT_TICK += $TICK;	2536	$NEXT_TICK += $TICK;
		2537
		2538	$WAIT_FOR_TICK->broadcast;
		2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2540
		2541	Event::sweep;
		2542	Coro::cede_notself;
		2543
		2544	# my $AFTER = Event::time;
		2545	# warn $AFTER - $NOW;#d#
2064		2546
2065	# if we are delayed by four ticks or more, skip them all	2547	# if we are delayed by four ticks or more, skip them all
2066	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2067		2549
2068	$TICK_WATCHER->at ($NEXT_TICK);	2550	$TICK_WATCHER->at ($NEXT_TICK);
2069	$TICK_WATCHER->start;	2551	$TICK_WATCHER->start;
2070	},	2552	},
2071	);	2553	);
2072		2554
2073	IO::AIO::max_poll_time $TICK * 0.2;	2555	IO::AIO::max_poll_time $TICK * 0.1;
2074		2556
2075	Event->io (	2557	undef $Coro::AIO::WATCHER;
		2558	$AIO_POLL_WATCHER = Event->io (
		2559	reentrant => 0,
2076	fd => IO::AIO::poll_fileno,	2560	fd => IO::AIO::poll_fileno,
2077	poll => 'r',	2561	poll => 'r',
2078	prio => 5,	2562	prio => 6,
2079	data => WF_AUTOCANCEL,	2563	data => WF_AUTOCANCEL,
2080	cb => \&IO::AIO::poll_cb,	2564	cb => \&IO::AIO::poll_cb,
2081	);	2565	);
2082		2566
2083	Event->timer (	2567	$WRITE_RUNTIME_WATCHER = Event->timer (
		2568	reentrant => 0,
2084	data => WF_AUTOCANCEL,	2569	data => WF_AUTOCANCEL,
2085	after => 0,	2570	after => 1,
2086	interval => 10,	2571	interval => 10,
2087	cb => sub {	2572	prio => 6, # keep it lowest so it acts like a watchdog
2088	(Coro::unblock_sub {	2573	cb => Coro::unblock_sub {
2089	write_runtime	2574	write_runtime
2090	or warn "ERROR: unable to write runtime file: $!";	2575	or warn "ERROR: unable to write runtime file: $!";
2091	})->();
2092	},	2576	},
2093	);	2577	);
2094		2578
		2579	END { cf::emergency_save }
		2580
2095	1	2581	1
2096		2582

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