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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.135 by root, Thu Jan 4 20:29:46 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 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 BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$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		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
221	# wake up all waiters, to be on the safe side	268	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	269	$_->ready for @{ delete $LOCK{$key} };
223	}	270	}
224	}	271	}
225		272
226	=item cf::async { BLOCK }
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {	273	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
244		275
245	my $guard = Coro::guard { $TICK_WATCHER->start };	276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
246	$TICK_WATCHER->stop;	279	$TICK_WATCHER->stop;
247	$guard	280	$guard
248	}	281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
249		292
250	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
251		294
252	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
272	my $freeze_guard = freeze_mainloop;	315	my $freeze_guard = freeze_mainloop;
273		316
274	my $busy = 1;	317	my $busy = 1;
275	my @res;	318	my @res;
276		319
277	(Coro::async {	320	(async {
278	@res = eval { $job->() };	321	@res = eval { $job->() };
279	warn $@ if $@;	322	warn $@ if $@;
280	undef $busy;	323	undef $busy;
281	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
282		325
283	while ($busy) {	326	while ($busy) {
284	Coro::cede_notself;	327	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	328	}
287		329
288	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
289	} else {	331	} else {
290	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
291		333
292	$job->()	334	$job->()
293	}	335	}
294	}	336	}
295		337
296	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
297		339
298	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
300		342
301	=cut	343	=cut
302		344
303	sub coro(&) {	345	sub async_ext(&) {
304	my $cb = shift;	346	my $cb = shift;
305		347
306	my $coro = &cf::async ($cb);	348	my $coro = &Coro::async ($cb);
307		349
308	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
310	});	352	});
311	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
312		354
313	$coro	355	$coro
314	}	356	}
315		357
316	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
317	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
318		362
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	364	or return;
321		365
		366	my $value = $cf::RUNTIME + 90 + 10;
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	371	and return;
325		372
		373	# always fsync - this file is important
326	aio_fsync $fh	374	aio_fsync $fh
327	and return;	375	and return;
328		376
329	close $fh	377	close $fh
330	or return;	378	or return;
…		…
336	}	384	}
337		385
338	=back	386	=back
339		387
340	=cut	388	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		389
462	#############################################################################	390	#############################################################################
463		391
464	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
465		393
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	520	our @CB_MAP = ();
593		521
594	my %attachment;	522	my %attachment;
595		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
596	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
598		532
599	use sort 'stable';	533	use sort 'stable';
600		534
…		…
771	# object support	705	# object support
772		706
773	sub reattach {	707	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		712
777	my $registry = $obj->registry;	713	my $registry = $obj->registry;
778		714
779	@$registry = ();	715	@$registry = ();
780		716
…		…
827	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
828		764
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	769	close $fh;
834		770
835	if (@$objs) {	771	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	777	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
843	}	779	}
844	} else {	780	} else {
845	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
912	=cut	848	=cut
913		849
914	sub register_extcmd {	850	sub register_extcmd {
915	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
916		852
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
921	}	854	}
922		855
923	cf::player->attach (	856	cf::player->attach (
924	on_command => sub {	857	on_command => sub {
925	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
938		871
939	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
940		873
941	if (ref $msg) {	874	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	878	}
946	}	879	}
947	} else {	880	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		883
951	cf::override;	884	cf::override;
952	},	885	},
953	);	886	);
954		887
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	888	sub load_extension {
962	my ($path) = @_;	889	my ($path) = @_;
963		890
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	892	my $base = $1;
966	my $pkg = $1;	893	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
969		896
970	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
971		898
972	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
973	or die "$path: $!";	900	or die "$path: $!";
974		901
975	my $source =	902	my $source =
976	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
979	. "\n};\n1";	906	. "\n};\n1";
980		907
981	eval $source	908	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	910	: "extension disabled.\n";
984		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	912	warn $@;
986	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
987		914	exit 1;
988	# no strict 'refs';	915	}
989	# @{"$pkg\::ISA"} = ext::;	916	die $@;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	917	}
1004		918
1005	# remove commands	919	push @EXTS, $pkg;
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	920	}
1030		921
1031	sub load_extensions {	922	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	924	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
1038	}	929	}
1039	}	930	}
1040		931
1041	#############################################################################	932	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078		933
1079	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1080		935
1081	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1082		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1083	=head3 cf::player	944	=head3 cf::player
1084		945
1085	=over 4	946	=over 4
1086		947
1087	=item cf::player::exists $login	948	=item cf::player::find $login
1088		949
1089	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1090		951
1091	=cut	952	=cut
1092		953
1093	sub cf::player::exists($) {	954	sub playerdir($) {
1094	cf::player::find $_[0]	955	cf::localdir
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
1096	}	1102	}
1097		1103
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099		1105
1100	Sends an ext reply to the player.	1106	Sends an ext reply to the player.
1101		1107
1102	=cut	1108	=cut
1103		1109
1104	sub cf::player::ext_reply($$$%) {	1110	sub ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;	1111	my ($self, $id, %msg) = @_;
1106		1112
1107	$msg{msgid} = $id;	1113	$msg{msgid} = $id;
1108		1114
1109	$self->send ("ext " . to_json \%msg);	1115	$self->send ("ext " . cf::to_json \%msg);
1110	}	1116	}
		1117
		1118	package cf;
1111		1119
1112	=back	1120	=back
1113		1121
1114		1122
1115	=head3 cf::map	1123	=head3 cf::map
…		…
1121	package cf::map;	1129	package cf::map;
1122		1130
1123	use Fcntl;	1131	use Fcntl;
1124	use Coro::AIO;	1132	use Coro::AIO;
1125		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
1126	our $MAX_RESET = 3600;	1138	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1139	our $DEFAULT_RESET = 3000;
1128		1140
1129	sub generate_random_map {	1141	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1142	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1143	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1144	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1148	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1149	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146	}	1286	}
1147		1287
1148	# and all this just because we cannot iterate over	1288	# and all this just because we cannot iterate over
1149	# all maps in C++...	1289	# all maps in C++...
1150	sub change_all_map_light {	1290	sub change_all_map_light {
…		…
1152		1292
1153	$_->change_map_light ($change)	1293	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1294	for grep $_->outdoor, values %cf::MAP;
1155	}	1295	}
1156		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303	}
		1304
1157	sub try_load_header($) {	1305	sub load_header_from($) {
1158	my ($path) = @_;	1306	my ($self, $path) = @_;
1159		1307
1160	utf8::encode $path;	1308	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
1162	or return;	1313	or return;
1163		1314
1164	my $map = cf::map::new	1315	$self->{load_path} = $path;
		1316
		1317	1
		1318	}
		1319
		1320	sub load_header_orig {
		1321	my ($self) = @_;
		1322
		1323	$self->load_header_from ($self->load_path)
		1324	}
		1325
		1326	sub load_header_temp {
		1327	my ($self) = @_;
		1328
		1329	$self->load_header_from ($self->save_path)
		1330	}
		1331
		1332	sub prepare_temp {
		1333	my ($self) = @_;
		1334
		1335	$self->last_access ((delete $self->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$self->{instantiate_time} = $cf::RUNTIME
		1339	if $self->{instantiate_time} > $cf::RUNTIME;
		1340	}
		1341
		1342	sub prepare_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->{load_original} = 1;
		1346	$self->{instantiate_time} = $cf::RUNTIME;
		1347	$self->last_access ($cf::RUNTIME);
		1348	$self->instantiate;
		1349	}
		1350
		1351	sub load_header {
		1352	my ($self) = @_;
		1353
		1354	if ($self->load_header_temp) {
		1355	$self->prepare_temp;
		1356	} else {
		1357	$self->load_header_orig
1165	or return;	1358	or return;
		1359	$self->prepare_orig;
		1360	}
1166		1361
1167	# for better error messages only, will be overwritten	1362	1
1168	$map->path ($path);
1169
1170	$map->load_header ($path)
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1363	}
1177		1364
1178	sub find;	1365	sub find;
1179	sub find {	1366	sub find {
1180	my ($path, $origin) = @_;	1367	my ($path, $origin) = @_;
1181		1368
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1369	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1370
1187	cf::lock_wait "map_find:$key";	1371	cf::lock_wait "map_find:$path";
1188		1372
1189	$cf::MAP{$key} || do {	1373	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1374	my $guard = cf::lock_acquire "map_find:$path";
1191		1375	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1376	or return;
1211		1377
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1378	$map->{last_save} = $cf::RUNTIME;
1224		1379
1225	Coro::cede;	1380	$map->load_header
		1381	or return;
1226		1382
1227	if ($map->should_reset) {	1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1384	# doing this can freeze the server in a sync job, obviously
		1385	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1386	$map->reset;
1229	undef $guard;	1387	undef $guard;
1230	$map = find $path	1388	return find $path;
1231	or return;
1232	}	1389	}
1233		1390
1234	$cf::MAP{$key} = $map	1391	$cf::MAP{$path} = $map
1235	}	1392	}
1236	}	1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
1237		1397
1238	sub load {	1398	sub load {
1239	my ($self) = @_;	1399	my ($self) = @_;
1240		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
1241	my $path = $self->{path};	1403	my $path = $self->{path};
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1404	my $guard = cf::lock_acquire "map_load:$path";
1243		1405
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1406	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1407
1246	$self->in_memory (cf::MAP_LOADING);	1408	$self->in_memory (cf::MAP_LOADING);
1247		1409
1248	$self->alloc;	1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
1249	$self->load_objects ($self->{load_path}, 1)	1414	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1415	or return;
1251		1416
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1418	if delete $self->{load_original};
1254		1419
1255	if (my $uniq = $path->uniq_path) {	1420	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1421	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1422	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1423	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1424	$self->_load_objects ($uniq, 0);
1260	}	1425	}
1261	}	1426	}
1262		1427
1263	Coro::cede;	1428	Coro::cede;
1264		1429
1265	# now do the right thing for maps	1430	# now do the right thing for maps
1266	$self->link_multipart_objects;	1431	$self->link_multipart_objects;
1267		1432
1268	if ($self->{path}->is_style_map) {	1433	unless ($self->{deny_activate}) {
1269	$self->{deny_save} = 1;	1434	$self->decay_objects;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;	1435	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;	1436	$self->update_buttons;
		1437	Coro::cede;
1275	$self->set_darkness_map;	1438	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1439	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1440	unless $self->difficulty;
		1441	Coro::cede;
1278	$self->activate;	1442	$self->activate;
1279	}	1443	}
1280		1444
1281	Coro::cede;	1445	$self->post_load;
1282		1446
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1447	$self->in_memory (cf::MAP_IN_MEMORY);
		1448	}
		1449
		1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
		1461	my ($map) = @_;
		1462
		1463	my @diag; # diagonal neighbours
		1464
		1465	for (0 .. 3) {
		1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
		1471
		1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
		1475
		1476	for (@diag) {
		1477	my $neigh = find @$_
		1478	or next;
		1479	$neigh->load;
		1480	}
1284	}	1481	}
1285		1482
1286	sub find_sync {	1483	sub find_sync {
1287	my ($path, $origin) = @_;	1484	my ($path, $origin) = @_;
1288		1485
1289	cf::sync_job { cf::map::find $path, $origin }	1486	cf::sync_job { find $path, $origin }
1290	}	1487	}
1291		1488
1292	sub do_load_sync {	1489	sub do_load_sync {
1293	my ($map) = @_;	1490	my ($map) = @_;
1294		1491
1295	cf::sync_job { $map->load };	1492	cf::sync_job { $map->load };
1296	}	1493	}
1297		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
		1513	$map->load;
		1514
		1515	delete $MAP_PREFETCH{$path};
		1516	}
		1517	}
		1518	undef $MAP_PREFETCHER;
		1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
		1523	}
		1524
1298	sub save {	1525	sub save {
1299	my ($self) = @_;	1526	my ($self) = @_;
1300		1527
		1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1529
1301	$self->{last_save} = $cf::RUNTIME;	1530	$self->{last_save} = $cf::RUNTIME;
1302		1531
1303	return unless $self->dirty;	1532	return unless $self->dirty;
1304		1533
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1534	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1536
1308	$self->{load_path} = $save;	1537	$self->{load_path} = $save;
1309		1538
1310	return if $self->{deny_save};	1539	return if $self->{deny_save};
1311		1540
1312	local $self->{last_access} = $self->last_access;#d#	1541	local $self->{last_access} = $self->last_access;#d#
1313		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
		1546
1314	if ($uniq) {	1547	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1550	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1552	}
1320	}	1553	}
1321		1554
1322	sub swap_out {	1555	sub swap_out {
1323	my ($self) = @_;	1556	my ($self) = @_;
1324		1557
1325	# save first because save cedes	1558	# save first because save cedes
1326	$self->save;	1559	$self->save;
		1560
		1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1562
1328	return if $self->players;	1563	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1565	return if $self->{deny_save};
1331		1566
…		…
1335		1570
1336	sub reset_at {	1571	sub reset_at {
1337	my ($self) = @_;	1572	my ($self) = @_;
1338		1573
1339	# TODO: safety, remove and allow resettable per-player maps	1574	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1576	return 1e99 if $self->{deny_reset};
1342		1577
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1580
…		…
1350	my ($self) = @_;	1585	my ($self) = @_;
1351		1586
1352	$self->reset_at <= $cf::RUNTIME	1587	$self->reset_at <= $cf::RUNTIME
1353	}	1588	}
1354		1589
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1590	sub reset {
1377	my ($self) = @_;	1591	my ($self) = @_;
1378		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
1379	return if $self->players;	1595	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1596	return if $self->isa ("ext::map_per_player");#d#
1381		1597
1382	warn "resetting map ", $self->path;#d#	1598	warn "resetting map ", $self->path;#d#
1383		1599
		1600	$self->in_memory (cf::MAP_SWAPPED);
		1601
		1602	# need to save uniques path
		1603	unless ($self->{deny_save}) {
		1604	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1605
		1606	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1607	if $uniq;
		1608	}
		1609
1384	delete $cf::MAP{$self->path};	1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
1385		1613
1386	$_->clear_links_to ($self) for values %cf::MAP;	1614	$_->clear_links_to ($self) for values %cf::MAP;
1387		1615
1388	$self->unlink_save;	1616	$self->unlink_save;
1389	$self->destroy;	1617	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1620	my $nuke_counter = "aaaa";
1393		1621
1394	sub nuke {	1622	sub nuke {
1395	my ($self) = @_;	1623	my ($self) = @_;
1396		1624
		1625	delete $cf::MAP{$self->path};
		1626
		1627	$self->unlink_save;
		1628
		1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1631	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1632	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1634
		1635	$cf::MAP{$self->path} = $self;
		1636
1400	$self->reset; # polite request, might not happen	1637	$self->reset; # polite request, might not happen
1401	}	1638	}
1402		1639
1403	sub customise_for {	1640	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1641
1406	if ($map->per_player) {	1642	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1643	instantiated unique items. May block.
1408	}
1409		1644
1410	$map	1645	=cut
1411	}
1412		1646
1413	sub emergency_save {	1647	sub unique_maps() {
1414	my $freeze_guard = cf::freeze_mainloop;	1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
1415		1650
1416	warn "enter emergency map save\n";	1651	my @paths;
1417		1652
1418	cf::sync_job {	1653	for (@$files) {
1419	warn "begin emergency map save\n";	1654	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
1421	};	1659	}
1422		1660
1423	warn "end emergency map save\n";	1661	\@paths
1424	}	1662	}
1425		1663
1426	package cf;	1664	package cf;
1427		1665
1428	=back	1666	=back
1429		1667
		1668	=head3 cf::object
		1669
		1670	=cut
		1671
		1672	package cf::object;
		1673
		1674	=over 4
		1675
		1676	=item $ob->inv_recursive
		1677
		1678	Returns the inventory of the object _and_ their inventories, recursively.
		1679
		1680	=cut
		1681
		1682	sub inv_recursive_;
		1683	sub inv_recursive_ {
		1684	map { $_, inv_recursive_ $_->inv } @_
		1685	}
		1686
		1687	sub inv_recursive {
		1688	inv_recursive_ inv $_[0]
		1689	}
		1690
		1691	package cf;
		1692
		1693	=back
1430		1694
1431	=head3 cf::object::player	1695	=head3 cf::object::player
1432		1696
1433	=over 4	1697	=over 4
1434		1698
…		…
1474		1738
1475	=item $player_object->enter_link	1739	=item $player_object->enter_link
1476		1740
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1741	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1742
1479	The player should be reaosnably safe there for short amounts of time. You	1743	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1744	I<MUST> call C<leave_link> as soon as possible, though.
1481		1745
		1746	Will never block.
		1747
1482	=item $player_object->leave_link ($map, $x, $y)	1748	=item $player_object->leave_link ($map, $x, $y)
1483		1749
1484	Moves the player out of the specila link map onto the given map. If the	1750	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1751	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1752	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1753	fails, to the emergency map position.
1488		1754
1489	Might block.	1755	Might block.
1490		1756
1491	=cut	1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
1492		1768
1493	sub cf::object::player::enter_link {	1769	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1770	my ($self) = @_;
1495		1771
1496	$self->deactivate_recursive;	1772	$self->deactivate_recursive;
1497		1773
1498	return if $self->map == $LINK_MAP;	1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1775
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1777	if $self->map;
1502		1778
1503	$self->enter_map ($LINK_MAP, 20, 20);	1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1780	}
1505		1781
1506	sub cf::object::player::leave_link {	1782	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1783	my ($self, $map, $x, $y) = @_;
1508		1784
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1802	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1803	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1804	if $x <=0 && $y <= 0;
1529		1805
1530	$map->load;	1806	$map->load;
		1807	$map->load_diag;
1531		1808
		1809	return unless $self->contr->active;
1532	$self->activate_recursive;	1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1534	}	1814	}
1535		1815
1536	cf::player->attach (	1816	cf::player->attach (
1537	on_logout => sub {	1817	on_logout => sub {
…		…
1549		1829
1550	# try to abort aborted map switching on player login :)	1830	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1831	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1832	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1833	$pl->ob->enter_link;
1554	cf::async {	1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
1555	# we need this sleep as the login has a concurrent enter_exit running	1839	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1840	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;	1841	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1842	$pl->ob->leave_link;
1559	};	1843	})->prio (2);
1560	}	1844	}
1561	},	1845	},
1562	);	1846	);
1563		1847
1564	=item $player_object->goto_map ($path, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1565		1849
1566	=cut	1850	=cut
1567		1851
1568	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1570		1854
1571	$self->enter_link;	1855	$self->enter_link;
1572		1856
1573	(cf::async {	1857	(async {
1574	$path = new cf::path $path;	1858	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	1859	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1578		1861	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1862	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1864
1584	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1866	})->prio (1);
1586	}	1867	}
1587		1868
…		…
1591		1872
1592	sub parse_random_map_params {	1873	sub parse_random_map_params {
1593	my ($spec) = @_;	1874	my ($spec) = @_;
1594		1875
1595	my $rmp = { # defaults	1876	my $rmp = { # defaults
1596	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1598	};	1881	};
1599		1882
1600	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1602		1885
…		…
1606	$rmp	1889	$rmp
1607	}	1890	}
1608		1891
1609	sub prepare_random_map {	1892	sub prepare_random_map {
1610	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1896
1612	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1899	# that depends on the exit object
1615		1900
1616	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1617		1902
1618	if ($exit->map) {	1903	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1623	}	1908	}
1624		1909
1625	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1626		1911
1627	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1915
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
1632		1920
1633	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1922	$exit->msg (undef);
1635	}	1923	}
1636	}	1924	}
…		…
1638	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1640		1928
1641	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1642		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
		1939
1643	$self->enter_link;	1940	$self->enter_link;
1644		1941
1645	(cf::async {	1942	(async {
1646	$self->deactivate_recursive; # just to be sure	1943	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1944	unless (eval {
1648	prepare_random_map $exit	1945	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		1946
1654	1;	1947	1;
1655	}) {	1948	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1950	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1953
1661	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1955	$self->leave_link;
1663	}	1956	}
…		…
1718	# get handled first	2011	# get handled first
1719	my $queue = delete $ns->{query_queue}	2012	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2014
1722	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2017
1724	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1725		2019
1726	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2021	if (@$queue) {
…		…
1731	}	2025	}
1732	}	2026	}
1733	},	2027	},
1734	);	2028	);
1735		2029
1736	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1737		2031
1738	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2034	or loss of connection).
1741		2035
1742	=cut	2036	=cut
1743		2037
1744	sub cf::client::coro {	2038	sub cf::client::async {
1745	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1746		2040
1747	my $coro = &cf::async ($cb);	2041	my $coro = &Coro::async ($cb);
1748		2042
1749	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1751	});	2045	});
1752		2046
…		…
1888	The parameter C<$family> should best start with the name of the extension	2182	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2183	using it, it should be unique.
1890		2184
1891	=over 4	2185	=over 4
1892		2186
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
1900		2188
1901	Returns a single value from the database	2189	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2190
1908	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
1909		2192
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2194
1921	=cut	2195	=cut
1922		2196
1923	our $DB;	2197	our $DB;
1924		2198
1925	{	2199	sub db_init {
		2200	unless ($DB) {
		2201	$DB = BDB::db_create $DB_ENV;
		2202
		2203	cf::sync_job {
		2204	eval {
		2205	$DB->set_flags (BDB::CHKSUM);
		2206
		2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2209	cf::cleanup "db_open(db): $!" if $!;
		2210	};
		2211	cf::cleanup "db_open(db): $@" if $@;
		2212	};
		2213
1926	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
		2215	if (stat $path) {
		2216	cf::sync_job {
		2217	my $pst = Storable::retrieve $path;
1927		2218
1928	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
1929	$DB = stat $path ? Storable::retrieve $path : { };	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1930	}	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
		2222	BDB::db_env_txn_checkpoint $DB_ENV;
1931		2223
1932	my $pid;	2224	unlink $path;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2225	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2226	}
1980	);	2227	}
		2228	}
		2229
		2230	sub db_get($$) {
		2231	my $key = "$_[0]/$_[1]";
		2232
		2233	cf::sync_job {
		2234	BDB::db_get $DB, undef, $key, my $data;
		2235
		2236	$! ? ()
		2237	: Compress::LZF::sthaw $data
		2238	}
		2239	}
		2240
		2241	sub db_put($$$) {
		2242	BDB::dbreq_pri 4;
		2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1981	}	2244	}
1982		2245
1983	#############################################################################	2246	#############################################################################
1984	# the server's main()	2247	# the server's init and main functions
		2248
		2249	sub init_resources {
		2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2251	or die "unable to load regions file\n";#d#
		2252	}
1985		2253
1986	sub cfg_load {	2254	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1988	or return;	2256	or return;
1989		2257
1990	local $/;	2258	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
1992		2260
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
1995	if (exists $CFG{mlockall}) {	2266	if (exists $CFG{mlockall}) {
1996	eval {	2267	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2269	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2270	};
2000	warn $@ if $@;	2271	warn $@ if $@;
2001	}	2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
2002	}	2277	}
2003		2278
2004	sub main {	2279	sub main {
2005	# we must not ever block the main coroutine	2280	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2281	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2283	(async {
2009	Event::one_event;	2284	Event::one_event;
2010	})->();	2285	})->prio (Coro::PRIO_MAX);
2011	};	2286	};
2012		2287
2013	cfg_load;	2288	cfg_load;
2014	db_load;	2289	db_init;
2015	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
2016	Event::loop;	2293	Event::loop;
2017	}	2294	}
2018		2295
2019	#############################################################################	2296	#############################################################################
2020	# initialisation	2297	# initialisation and cleanup
		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
		2347	sub post_cleanup {
		2348	my ($make_core) = @_;
		2349
		2350	warn Carp::longmess "post_cleanup backtrace"
		2351	if $make_core;
		2352	}
2021		2353
2022	sub reload() {	2354	sub reload() {
2023	# can/must only be called in main	2355	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2356	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2357	warn "can only reload from main coroutine";
2026	return;	2358	return;
2027	}	2359	}
2028		2360
2029	warn "reloading...";	2361	warn "reloading...";
2030		2362
2031	my $guard = freeze_mainloop;	2363	warn "entering sync_job";
		2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
2033		2369
2034	eval {	2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
2035	# if anything goes wrong in here, we should simply crash as we already saved	2373	# if anything goes wrong in here, we should simply crash as we already saved
2036		2374
2037	# cancel all watchers	2375	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2376	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2377	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2378	}
2041		2379
		2380	warn "flushing outstanding aio requests";
		2381	for (;;) {
		2382	BDB::flush;
		2383	IO::AIO::flush;
		2384	Coro::cede;
		2385	last unless IO::AIO::nreqs || BDB::nreqs;
		2386	warn "iterate...";
		2387	}
		2388
2042	# cancel all extension coros	2389	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2390	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2391	%EXT_CORO = ();
2045		2392
2046	# unload all extensions	2393	warn "removing commands";
2047	for (@exts) {	2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2401	warn "... unloading $pkg";
2049	unload_extension $_;	2402
		2403	if (my $cb = $pkg->can ("unload")) {
		2404	eval {
		2405	$cb->($pkg);
		2406	1
		2407	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2408	}
2051		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
2052	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2417
2056	warn "removing <$k>";	2418	warn "... unloading $k";
2057	delete $INC{$k};	2419	delete $INC{$k};
2058		2420
2059	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
2061		2423
…		…
2064	}	2426	}
2065		2427
2066	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
2067	}	2429	}
2068		2430
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2434
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
2082		2437
2083	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2439	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
2086		2441
2087	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
2088	warn "reloading cf.pm";	2444	warn "reloading cf.pm";
2089	require cf;	2445	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2447
2092	# load config and database again	2448	warn "loading config and database again";
2093	cf::cfg_load;	2449	cf::cfg_load;
2094	cf::db_load;
2095		2450
2096	# load extensions
2097	warn "load extensions";	2451	warn "loading extensions";
2098	cf::load_extensions;	2452	cf::load_extensions;
2099		2453
2100	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
2101	warn "reattach";
2102	_global_reattach;	2455	_global_reattach;
2103	};	2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
2104		2458
2105	if ($@) {	2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
2106	warn $@;	2466	warn $@;
2107	warn "error while reloading, exiting.";	2467	warn "error while reloading, exiting.";
2108	exit 1;	2468	exit 1;
2109	}	2469	};
2110		2470
2111	warn "reloaded successfully";	2471	warn "reloaded";
2112	};	2472	};
2113		2473
2114	#############################################################################	2474	our $RELOAD_WATCHER; # used only during reload
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2475
2159	register_command "reload" => sub {	2476	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
2161		2478
2162	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2480	$who->message ("reloading server.");
		2481
		2482	# doing reload synchronously and two reloads happen back-to-back,
		2483	# coro crashes during coro_state_free->destroy here.
		2484
		2485	$RELOAD_WATCHER ||= Event->timer (
		2486	reentrant => 0,
		2487	after => 0,
		2488	data => WF_AUTOCANCEL,
		2489	cb => sub {
2164	reload;	2490	reload;
2165	$who->message ("end of reload.");	2491	undef $RELOAD_WATCHER;
		2492	},
		2493	);
2166	}	2494	}
2167	};	2495	};
2168		2496
2169	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
		2498
		2499	my $bug_warning = 0;
2170		2500
2171	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2502	reentrant => 0,
		2503	parked => 1,
2173	prio => 0,	2504	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2505	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2506	data => WF_AUTOCANCEL,
2176	cb => sub {	2507	cb => sub {
		2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
2177	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;	2517	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	2518	$NEXT_TICK += $TICK;
		2519
		2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2521	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2522	Coro::async_pool {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	};
		2526	}
		2527
		2528	$WAIT_FOR_TICK->broadcast;
		2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2530
		2531	# my $AFTER = Event::time;
		2532	# warn $AFTER - $NOW;#d#
2180		2533
2181	# if we are delayed by four ticks or more, skip them all	2534	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183		2536
2184	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
2186	},	2539	},
2187	);	2540	);
2188		2541
		2542	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	2543	BDB::max_poll_time $TICK * 0.1;
2190		2544	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	2545	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	2546	fd => BDB::poll_fileno,
2193	poll => 'r',	2547	poll => 'r',
2194	prio => 5,	2548	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	2549	data => WF_AUTOCANCEL,
2201	after => 0,	2550	cb => \&BDB::poll_cb,
2202	interval => 10,	2551	);
2203	cb => sub {	2552	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	2553
2205	write_runtime	2554	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	2555	my $status;
		2556	my $current = $Coro::current;
		2557	(
		2558	sub {
		2559	$status = $!;
		2560	$current->ready; undef $current;
		2561	},
		2562	sub {
		2563	Coro::schedule while defined $current;
		2564	$! = $status;
		2565	},
		2566	)
		2567	};
		2568
		2569	unless ($DB_ENV) {
		2570	$DB_ENV = BDB::db_env_create;
		2571
		2572	cf::sync_job {
		2573	eval {
		2574	BDB::db_env_open
		2575	$DB_ENV,
		2576	$BDB_ENV_DIR,
		2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2579	0666;
		2580
		2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2582
		2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2584	$DB_ENV->set_lk_detect;
		2585	};
		2586
		2587	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	2588	};
2208	},	2589	}
2209	);	2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
		2596	IO::AIO::max_poll_time $TICK * 0.1;
		2597	$AIO_POLL_WATCHER = Event->io (
		2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
		2601	poll => 'r',
		2602	prio => 6,
		2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
2210		2606
2211	END { cf::emergency_save }	2607	END { cf::emergency_save }
2212		2608
2213	1	2609	1
2214		2610

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