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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.222 by root, Tue Mar 6 03:06:00 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;	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		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
19	use IO::AIO 2.3;	24	use IO::AIO 2.32 ();
20	use YAML::Syck ();	25	use YAML::Syck ();
21	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
22		30
23	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
24		34
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
27		37
28	$Coro::main->prio (Coro::PRIO_MIN);	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		39
32	our %COMMAND = ();	40	our %COMMAND = ();
33	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
35		47
36	our @EVENT;	48	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
38		50
39	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	55	our $NEXT_TICK;
		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;
42		61
43	our %CFG;	62	our %CFG;
44		63
45	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
		65	our $RUNTIME;
		66
		67	our %PLAYER; # all users
		68	our %MAP; # all maps
		69	our $LINK_MAP; # the special {link} map, which is always available
		70	our $RANDOM_MAPS = cf::localdir . "/random";
		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 $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		78
		79	binmode STDOUT;
		80	binmode STDERR;
		81
		82	# read virtual server time, if available
		83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		84	open my $fh, "<", cf::localdir . "/runtime"
		85	or die "unable to read runtime file: $!";
		86	$RUNTIME = <$fh> + 0.;
		87	}
		88
		89	mkdir cf::localdir;
		90	mkdir cf::localdir . "/" . cf::playerdir;
		91	mkdir cf::localdir . "/" . cf::tmpdir;
		92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
		95
		96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
46		99
47	#############################################################################	100	#############################################################################
48		101
49	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
50		103
51	=over 4	104	=over 4
52		105
53	=item $cf::UPTIME	106	=item $cf::UPTIME
54		107
55	The timestamp of the server start (so not actually an uptime).	108	The timestamp of the server start (so not actually an uptime).
		109
		110	=item $cf::RUNTIME
		111
		112	The time this server has run, starts at 0 and is increased by $cf::TICK on
		113	every server tick.
56		114
57	=item $cf::LIBDIR	115	=item $cf::LIBDIR
58		116
59	The perl library directory, where extensions and cf-specific modules can	117	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	118	be found. It will be added to C<@INC> automatically.
61		119
		120	=item $cf::NOW
		121
		122	The time of the last (current) server tick.
		123
62	=item $cf::TICK	124	=item $cf::TICK
63		125
64	The interval between server ticks, in seconds.	126	The interval between server ticks, in seconds.
65		127
66	=item %cf::CFG	128	=item %cf::CFG
67		129
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	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.
70		139
71	=back	140	=back
72		141
73	=cut	142	=cut
74		143
75	BEGIN {	144	BEGIN {
76	*CORE::GLOBAL::warn = sub {	145	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	146	my $msg = join "", @_;
		147	utf8::encode $msg;
		148
78	$msg .= "\n"	149	$msg .= "\n"
79	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
80		151
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
83	};	153	};
84	}	154	}
85		155
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		175
106	$Event::DIED = sub {	176	$Event::DIED = sub {
107	warn "error in event callback: @_";	177	warn "error in event callback: @_";
108	};	178	};
109		179
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
115		181
116	=over 4	182	=over 4
117		183
		184	=item dumpval $ref
		185
118	=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	}
119		206
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		208
122	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
123		210
…		…
137	=cut	224	=cut
138		225
139	sub to_json($) {	226	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
		229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
		292
		293	=item cf::sync_job { BLOCK }
		294
		295	The design of crossfire+ requires that the main coro ($Coro::main) is
		296	always able to handle events or runnable, as crossfire+ is only partly
		297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		298
		299	If it must be done, put the blocking parts into C<sync_job>. This will run
		300	the given BLOCK in another coroutine while waiting for the result. The
		301	server will be frozen during this time, so the block should either finish
		302	fast or be very important.
		303
		304	=cut
		305
		306	sub sync_job(&) {
		307	my ($job) = @_;
		308
		309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
		324	})->prio (Coro::PRIO_MAX);
		325
		326	while ($busy) {
		327	Coro::cede or Event::one_event;
		328	}
		329
		330	wantarray ? @res : $res[0]
		331	} else {
		332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
		335	}
		336	}
		337
		338	=item $coro = cf::async_ext { BLOCK }
		339
		340	Like async, but this coro is automatically being canceled when the
		341	extension calling this is being unloaded.
		342
		343	=cut
		344
		345	sub async_ext(&) {
		346	my $cb = shift;
		347
		348	my $coro = &Coro::async ($cb);
		349
		350	$coro->on_destroy (sub {
		351	delete $EXT_CORO{$coro+0};
		352	});
		353	$EXT_CORO{$coro+0} = $coro;
		354
		355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
142	}	384	}
143		385
144	=back	386	=back
145		387
146	=cut	388	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	520	our @CB_MAP = ();
279		521
280	my %attachment;	522	my %attachment;
281		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
282	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
284		532
285	use sort 'stable';	533	use sort 'stable';
286		534
…		…
454	=cut	702	=cut
455		703
456	#############################################################################	704	#############################################################################
457	# object support	705	# object support
458		706
		707	sub reattach {
		708	# basically do the same as instantiate, without calling instantiate
		709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		712
		713	my $registry = $obj->registry;
		714
		715	@$registry = ();
		716
		717	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		718
		719	for my $name (keys %{ $obj->{_attachment} || {} }) {
		720	if (my $attach = $attachment{$name}) {
		721	for (@$attach) {
		722	my ($klass, @attach) = @$_;
		723	_attach $registry, $klass, @attach;
		724	}
		725	} else {
		726	warn "object uses attachment '$name' that is not available, postponing.\n";
		727	}
		728	}
		729	}
		730
459	cf::attachable->attach (	731	cf::attachable->attach (
460	prio => -1000000,	732	prio => -1000000,
461	on_instantiate => sub {	733	on_instantiate => sub {
462	my ($obj, $data) = @_;	734	my ($obj, $data) = @_;
463		735
…		…
467	my ($name, $args) = @$_;	739	my ($name, $args) = @$_;
468		740
469	$obj->attach ($name, %{$args || {} });	741	$obj->attach ($name, %{$args || {} });
470	}	742	}
471	},	743	},
472	on_reattach => sub {	744	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	745	on_clone => sub {
493	my ($src, $dst) = @_;	746	my ($src, $dst) = @_;
494		747
495	@{$dst->registry} = @{$src->registry};	748	@{$dst->registry} = @{$src->registry};
496		749
…		…
502	);	755	);
503		756
504	sub object_freezer_save {	757	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	758	my ($filename, $rdata, $objs) = @_;
506		759
		760	sync_job {
507	if (length $$rdata) {	761	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	762	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
510		764
511	if (open my $fh, ">:raw", "$filename~") {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	769	close $fh;
		770
		771	if (@$objs) {
		772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		773	chmod SAVE_MODE, $fh;
		774	my $data = Storable::nfreeze { version => 1, objs => $objs };
		775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
520	rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
		779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
521	} else {	785	} else {
522	unlink "$filename.pst";	786	warn "FATAL: $filename~: $!\n";
523	}	787	}
524
525	rename "$filename~", $filename;
526	} else {	788	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	789	aio_unlink $filename;
531	unlink "$filename.pst";	790	aio_unlink "$filename.pst";
		791	}
532	}	792	}
533	}	793	}
534		794
535	sub object_freezer_as_string {	795	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	796	my ($rdata, $objs) = @_;
…		…
541	}	801	}
542		802
543	sub object_thawer_load {	803	sub object_thawer_load {
544	my ($filename) = @_;	804	my ($filename) = @_;
545		805
546	local $/;	806	my ($data, $av);
547		807
548	my $av;	808	(aio_load $filename, $data) >= 0
		809	or return;
549		810
550	#TODO: use sysread etc.	811	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	812	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	813	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
555	}	815	}
		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	819	return ($data, $av);
557	}
558
559	()
560	}	820	}
561		821
562	#############################################################################	822	#############################################################################
563	# command handling &c	823	# command handling &c
564		824
…		…
588	=cut	848	=cut
589		849
590	sub register_extcmd {	850	sub register_extcmd {
591	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
592		852
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
597	}	854	}
598		855
599	cf::player->attach (	856	cf::player->attach (
600	on_command => sub {	857	on_command => sub {
601	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
614		871
615	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
616		873
617	if (ref $msg) {	874	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	878	}
622	}	879	}
623	} else {	880	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		883
627	cf::override;	884	cf::override;
628	},	885	},
629	);	886	);
630		887
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	888	sub load_extension {
638	my ($path) = @_;	889	my ($path) = @_;
639		890
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	892	my $base = $1;
642	my $pkg = $1;	893	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
645		896
646	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
647		898
648	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
649	or die "$path: $!";	900	or die "$path: $!";
650		901
651	my $source =	902	my $source =
652	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
655	. "\n};\n1";	906	. "\n};\n1";
656		907
657	eval $source	908	unless (eval $source) {
658	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
659	: "extension disabled.\n";	910	: "extension disabled.\n";
660		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
661	push @exts, $pkg;	912	warn $@;
662	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
663		914	exit 1;
664	# no strict 'refs';	915	}
665	# @{"$pkg\::ISA"} = ext::;	916	die $@;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	917	}
680		918
681	# remove commands	919	push @EXTS, $pkg;
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}
690	}
691
692	# remove extcmds
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	920	}
706		921
707	sub load_extensions {	922	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	924	next unless -r $ext;
…		…
713	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
714	}	929	}
715	}	930	}
716		931
717	#############################################################################	932	#############################################################################
718	# load/save/clean perl data associated with a map
719		933
720	*cf::mapsupport::on_clean = sub {	934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		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	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item $pl->kick
		1060
		1061	Kicks a player out of the game. This destroys the connection.
		1062
		1063	=cut
		1064
		1065	sub kick {
		1066	my ($pl, $kicker) = @_;
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1069	$pl->killer ("kicked");
		1070	$pl->ns->destroy;
		1071	}
		1072
		1073	=item cf::player::list_logins
		1074
		1075	Returns am arrayref of all valid playernames in the system, can take a
		1076	while and may block, so not sync_job-capable, ever.
		1077
		1078	=cut
		1079
		1080	sub list_logins {
		1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1082	or return [];
		1083
		1084	my @logins;
		1085
		1086	for my $login (@$dirs) {
		1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1088	aio_read $fh, 0, 512, my $buf, 0 or next;
		1089	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1090
		1091	utf8::decode $login;
		1092	push @logins, $login;
		1093	}
		1094
		1095	\@logins
		1096	}
		1097
		1098	=item $player->maps
		1099
		1100	Returns an arrayref of map paths that are private for this
		1101	player. May block.
		1102
		1103	=cut
		1104
		1105	sub maps($) {
		1106	my ($pl) = @_;
		1107
		1108	$pl = ref $pl ? $pl->ob->name : $pl;
		1109
		1110	my $files = aio_readdir playerdir $pl
		1111	or return;
		1112
		1113	my @paths;
		1114
		1115	for (@$files) {
		1116	utf8::decode $_;
		1117	next if /\.(?:pl|pst)$/;
		1118	next unless /^$PATH_SEP/o;
		1119
		1120	push @paths, cf::map::normalise "~$pl/$_";
		1121	}
		1122
		1123	\@paths
		1124	}
		1125
		1126	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1127
		1128	Sends an ext reply to the player.
		1129
		1130	=cut
		1131
		1132	sub ext_reply($$$%) {
		1133	my ($self, $id, %msg) = @_;
		1134
		1135	$msg{msgid} = $id;
		1136
		1137	$self->send ("ext " . cf::to_json \%msg);
		1138	}
		1139
		1140	package cf;
		1141
		1142	=back
		1143
		1144
		1145	=head3 cf::map
		1146
		1147	=over 4
		1148
		1149	=cut
		1150
		1151	package cf::map;
		1152
		1153	use Fcntl;
		1154	use Coro::AIO;
		1155
		1156	use overload
		1157	'""' => \&as_string,
		1158	fallback => 1;
		1159
		1160	our $MAX_RESET = 3600;
		1161	our $DEFAULT_RESET = 3000;
		1162
		1163	sub generate_random_map {
		1164	my ($self, $rmp) = @_;
		1165	# mit "rum" bekleckern, nicht
		1166	$self->_create_random_map (
		1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1170	$rmp->{exit_on_final_map},
		1171	$rmp->{xsize}, $rmp->{ysize},
		1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1174	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1175	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1176	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1177	(cf::region::find $rmp->{region}), $rmp->{custom}
		1178	)
		1179	}
		1180
		1181	=item cf::map->register ($regex, $prio)
		1182
		1183	Register a handler for the map path matching the given regex at the
		1184	givne priority (higher is better, built-in handlers have priority 0, the
		1185	default).
		1186
		1187	=cut
		1188
		1189	sub register {
		1190	my (undef, $regex, $prio) = @_;
		1191	my $pkg = caller;
		1192
		1193	no strict;
		1194	push @{"$pkg\::ISA"}, __PACKAGE__;
		1195
		1196	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1197	}
		1198
		1199	# also paths starting with '/'
		1200	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1201
		1202	sub thawer_merge {
		1203	my ($self, $merge) = @_;
		1204
		1205	# we have to keep some variables in memory intact
		1206	local $self->{path};
		1207	local $self->{load_path};
		1208	local $self->{deny_save};
		1209	local $self->{deny_reset};
		1210
		1211	$self->SUPER::thawer_merge ($merge);
		1212	}
		1213
		1214	sub normalise {
		1215	my ($path, $base) = @_;
		1216
		1217	$path = "$path"; # make sure its a string
		1218
		1219	$path =~ s/\.map$//;
		1220
		1221	# map plan:
		1222	#
		1223	# /! non-realised random map exit (special hack!)
		1224	# {... are special paths that are not being touched
		1225	# ?xxx/... are special absolute paths
		1226	# ?random/... random maps
		1227	# /... normal maps
		1228	# ~user/... per-player map of a specific user
		1229
		1230	$path =~ s/$PATH_SEP/\//go;
		1231
		1232	# treat it as relative path if it starts with
		1233	# something that looks reasonable
		1234	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1235	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1236
		1237	$base =~ s{[^/]+/?$}{};
		1238	$path = "$base/$path";
		1239	}
		1240
		1241	for ($path) {
		1242	redo if s{//}{/};
		1243	redo if s{/\.?/}{/};
		1244	redo if s{/[^/]+/\.\./}{/};
		1245	}
		1246
		1247	$path
		1248	}
		1249
		1250	sub new_from_path {
		1251	my (undef, $path, $base) = @_;
		1252
		1253	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1254
		1255	$path = normalise $path, $base;
		1256
		1257	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1258	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1259	my $self = bless cf::map::new, $pkg;
		1260	$self->{path} = $path; $self->path ($path);
		1261	$self->init; # pass $1 etc.
		1262	return $self;
		1263	}
		1264	}
		1265
		1266	Carp::carp "unable to resolve path '$path' (base '$base').";
		1267	()
		1268	}
		1269
		1270	sub init {
		1271	my ($self) = @_;
		1272
		1273	$self
		1274	}
		1275
		1276	sub as_string {
		1277	my ($self) = @_;
		1278
		1279	"$self->{path}"
		1280	}
		1281
		1282	# the displayed name, this is a one way mapping
		1283	sub visible_name {
		1284	&as_string
		1285	}
		1286
		1287	# the original (read-only) location
		1288	sub load_path {
		1289	my ($self) = @_;
		1290
		1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1292	}
		1293
		1294	# the temporary/swap location
		1295	sub save_path {
		1296	my ($self) = @_;
		1297
		1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1300	}
		1301
		1302	# the unique path, undef == no special unique path
		1303	sub uniq_path {
		1304	my ($self) = @_;
		1305
		1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1308	}
		1309
		1310	# and all this just because we cannot iterate over
		1311	# all maps in C++...
		1312	sub change_all_map_light {
		1313	my ($change) = @_;
		1314
		1315	$_->change_map_light ($change)
		1316	for grep $_->outdoor, values %cf::MAP;
		1317	}
		1318
		1319	sub unlink_save {
		1320	my ($self) = @_;
		1321
		1322	utf8::encode (my $save = $self->save_path);
		1323	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1325	}
		1326
		1327	sub load_header_from($) {
		1328	my ($self, $path) = @_;
		1329
		1330	utf8::encode $path;
		1331	#aio_open $path, O_RDONLY, 0
		1332	# or return;
		1333
		1334	$self->_load_header ($path)
		1335	or return;
		1336
		1337	$self->{load_path} = $path;
		1338
		1339	1
		1340	}
		1341
		1342	sub load_header_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->load_path)
		1346	}
		1347
		1348	sub load_header_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->load_header_from ($self->save_path)
		1352	}
		1353
		1354	sub prepare_temp {
		1355	my ($self) = @_;
		1356
		1357	$self->last_access ((delete $self->{last_access})
		1358	|| $cf::RUNTIME); #d#
		1359	# safety
		1360	$self->{instantiate_time} = $cf::RUNTIME
		1361	if $self->{instantiate_time} > $cf::RUNTIME;
		1362	}
		1363
		1364	sub prepare_orig {
		1365	my ($self) = @_;
		1366
		1367	$self->{load_original} = 1;
		1368	$self->{instantiate_time} = $cf::RUNTIME;
		1369	$self->last_access ($cf::RUNTIME);
		1370	$self->instantiate;
		1371	}
		1372
		1373	sub load_header {
		1374	my ($self) = @_;
		1375
		1376	if ($self->load_header_temp) {
		1377	$self->prepare_temp;
		1378	} else {
		1379	$self->load_header_orig
		1380	or return;
		1381	$self->prepare_orig;
		1382	}
		1383
		1384	1
		1385	}
		1386
		1387	sub find;
		1388	sub find {
		1389	my ($path, $origin) = @_;
		1390
		1391	$path = normalise $path, $origin && $origin->path;
		1392
		1393	cf::lock_wait "map_find:$path";
		1394
		1395	$cf::MAP{$path} || do {
		1396	my $guard = cf::lock_acquire "map_find:$path";
		1397	my $map = new_from_path cf::map $path
		1398	or return;
		1399
		1400	$map->{last_save} = $cf::RUNTIME;
		1401
		1402	$map->load_header
		1403	or return;
		1404
		1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1406	# doing this can freeze the server in a sync job, obviously
		1407	#$cf::WAIT_FOR_TICK->wait;
		1408	$map->reset;
		1409	undef $guard;
		1410	return find $path;
		1411	}
		1412
		1413	$cf::MAP{$path} = $map
		1414	}
		1415	}
		1416
		1417	sub pre_load { }
		1418	sub post_load { }
		1419
		1420	sub load {
		1421	my ($self) = @_;
		1422
		1423	local $self->{deny_reset} = 1; # loading can take a long time
		1424
		1425	my $path = $self->{path};
		1426	my $guard = cf::lock_acquire "map_load:$path";
		1427
		1428	return if $self->in_memory != cf::MAP_SWAPPED;
		1429
		1430	$self->in_memory (cf::MAP_LOADING);
		1431
		1432	$self->alloc;
		1433
		1434	$self->pre_load;
		1435
		1436	$self->_load_objects ($self->{load_path}, 1)
		1437	or return;
		1438
		1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1440	if delete $self->{load_original};
		1441
		1442	if (my $uniq = $self->uniq_path) {
		1443	utf8::encode $uniq;
		1444	if (aio_open $uniq, O_RDONLY, 0) {
		1445	$self->clear_unique_items;
		1446	$self->_load_objects ($uniq, 0);
		1447	}
		1448	}
		1449
		1450	Coro::cede;
		1451
		1452	# now do the right thing for maps
		1453	$self->link_multipart_objects;
		1454
		1455	unless ($self->{deny_activate}) {
		1456	$self->decay_objects;
		1457	$self->fix_auto_apply;
		1458	$self->update_buttons;
		1459	Coro::cede;
		1460	$self->set_darkness_map;
		1461	$self->difficulty ($self->estimate_difficulty)
		1462	unless $self->difficulty;
		1463	Coro::cede;
		1464	$self->activate;
		1465	}
		1466
		1467	$self->post_load;
		1468
		1469	$self->in_memory (cf::MAP_IN_MEMORY);
		1470	}
		1471
		1472	sub customise_for {
		1473	my ($self, $ob) = @_;
		1474
		1475	return find "~" . $ob->name . "/" . $self->{path}
		1476	if $self->per_player;
		1477
		1478	$self
		1479	}
		1480
		1481	# find and load all maps in the 3x3 area around a map
		1482	sub load_diag {
721	my ($map) = @_;	1483	my ($map) = @_;
722		1484
723	my $path = $map->tmpname;	1485	my @diag; # diagonal neighbours
724	defined $path or return;
725		1486
726	unlink "$path.pst";	1487	for (0 .. 3) {
727	};	1488	my $neigh = $map->tile_path ($_)
		1489	or next;
		1490	$neigh = find $neigh, $map
		1491	or next;
		1492	$neigh->load;
728		1493
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1496	}
730		1497
731	#############################################################################	1498	for (@diag) {
732	# load/save perl data associated with player->ob objects	1499	my $neigh = find @$_
733		1500	or next;
734	sub all_objects(@) {	1501	$neigh->load;
735	@_, map all_objects ($_->inv), @_	1502	}
736	}	1503	}
737		1504
738	# TODO: compatibility cruft, remove when no longer needed	1505	sub find_sync {
739	cf::player->attach (	1506	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1507
743	for my $o (all_objects $pl->ob) {	1508	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1509	}
745	$o->set_ob_key_value ("_perl_data");
746		1510
747	%$o = %{ Storable::thaw pack "H*", $value };	1511	sub do_load_sync {
		1512	my ($map) = @_;
		1513
		1514	cf::sync_job { $map->load };
		1515	}
		1516
		1517	our %MAP_PREFETCH;
		1518	our $MAP_PREFETCHER = undef;
		1519
		1520	sub find_async {
		1521	my ($path, $origin) = @_;
		1522
		1523	$path = normalise $path, $origin && $origin->{path};
		1524
		1525	if (my $map = $cf::MAP{$path}) {
		1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1527	}
		1528
		1529	undef $MAP_PREFETCH{$path};
		1530	$MAP_PREFETCHER ||= cf::async {
		1531	while (%MAP_PREFETCH) {
		1532	for my $path (keys %MAP_PREFETCH) {
		1533	my $map = find $path
		1534	or next;
		1535	$map->load;
		1536
		1537	delete $MAP_PREFETCH{$path};
748	}	1538	}
749	}	1539	}
		1540	undef $MAP_PREFETCHER;
		1541	};
		1542	$MAP_PREFETCHER->prio (6);
		1543
		1544	()
		1545	}
		1546
		1547	sub save {
		1548	my ($self) = @_;
		1549
		1550	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1551
		1552	$self->{last_save} = $cf::RUNTIME;
		1553
		1554	return unless $self->dirty;
		1555
		1556	my $save = $self->save_path; utf8::encode $save;
		1557	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1558
		1559	$self->{load_path} = $save;
		1560
		1561	return if $self->{deny_save};
		1562
		1563	local $self->{last_access} = $self->last_access;#d#
		1564
		1565	cf::async {
		1566	$_->contr->save for $self->players;
		1567	};
		1568
		1569	if ($uniq) {
		1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1572	} else {
		1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	1574	}
751	);	1575	}
752		1576
753	#############################################################################	1577	sub swap_out {
		1578	my ($self) = @_;
754		1579
755	=head2 CORE EXTENSIONS	1580	# save first because save cedes
		1581	$self->save;
756		1582
757	Functions and methods that extend core crossfire objects.	1583	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		1584
759	=head3 cf::player	1585	return if $self->players;
		1586	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1587	return if $self->{deny_save};
		1588
		1589	$self->clear;
		1590	$self->in_memory (cf::MAP_SWAPPED);
		1591	}
		1592
		1593	sub reset_at {
		1594	my ($self) = @_;
		1595
		1596	# TODO: safety, remove and allow resettable per-player maps
		1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1598	return 1e99 if $self->{deny_reset};
		1599
		1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1602
		1603	$time + $to
		1604	}
		1605
		1606	sub should_reset {
		1607	my ($self) = @_;
		1608
		1609	$self->reset_at <= $cf::RUNTIME
		1610	}
		1611
		1612	sub reset {
		1613	my ($self) = @_;
		1614
		1615	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1616
		1617	return if $self->players;
		1618	return if $self->isa ("ext::map_per_player");#d#
		1619
		1620	warn "resetting map ", $self->path;#d#
		1621
		1622	$self->in_memory (cf::MAP_SWAPPED);
		1623
		1624	# need to save uniques path
		1625	unless ($self->{deny_save}) {
		1626	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1627
		1628	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1629	if $uniq;
		1630	}
		1631
		1632	delete $cf::MAP{$self->path};
		1633
		1634	$self->clear;
		1635
		1636	$_->clear_links_to ($self) for values %cf::MAP;
		1637
		1638	$self->unlink_save;
		1639	$self->destroy;
		1640	}
		1641
		1642	my $nuke_counter = "aaaa";
		1643
		1644	sub nuke {
		1645	my ($self) = @_;
		1646
		1647	delete $cf::MAP{$self->path};
		1648
		1649	$self->unlink_save;
		1650
		1651	bless $self, "cf::map";
		1652	delete $self->{deny_reset};
		1653	$self->{deny_save} = 1;
		1654	$self->reset_timeout (1);
		1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1656
		1657	$cf::MAP{$self->path} = $self;
		1658
		1659	$self->reset; # polite request, might not happen
		1660	}
		1661
		1662	=item cf::map::unique_maps
		1663
		1664	Returns an arrayref of paths of all shared maps that have
		1665	instantiated unique items. May block.
		1666
		1667	=cut
		1668
		1669	sub unique_maps() {
		1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1671	or return;
		1672
		1673	my @paths;
		1674
		1675	for (@$files) {
		1676	utf8::decode $_;
		1677	next if /\.pst$/;
		1678	next unless /^$PATH_SEP/o;
		1679
		1680	push @paths, cf::map::normalise $_;
		1681	}
		1682
		1683	\@paths
		1684	}
		1685
		1686	package cf;
		1687
		1688	=back
		1689
		1690	=head3 cf::object
		1691
		1692	=cut
		1693
		1694	package cf::object;
760		1695
761	=over 4	1696	=over 4
762		1697
763	=item cf::player::exists $login	1698	=item $ob->inv_recursive
764		1699
765	Returns true when the given account exists.	1700	Returns the inventory of the object _and_ their inventories, recursively.
766		1701
767	=cut	1702	=cut
768		1703
769	sub cf::player::exists($) {	1704	sub inv_recursive_;
770	cf::player::find $_[0]	1705	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1706	map { $_, inv_recursive_ $_->inv } @_
772	}	1707	}
773		1708
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	sub inv_recursive {
775		1710	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	1711	}
		1712
		1713	package cf;
787		1714
788	=back	1715	=back
789		1716
790	=head3 cf::object::player	1717	=head3 cf::object::player
791		1718
…		…
829	(ref $cf::CFG{"may_$access"}	1756	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1757	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1758	: $cf::CFG{"may_$access"})
832	}	1759	}
833		1760
		1761	=item $player_object->enter_link
		1762
		1763	Freezes the player and moves him/her to a special map (C<{link}>).
		1764
		1765	The player should be reasonably safe there for short amounts of time. You
		1766	I<MUST> call C<leave_link> as soon as possible, though.
		1767
		1768	Will never block.
		1769
		1770	=item $player_object->leave_link ($map, $x, $y)
		1771
		1772	Moves the player out of the special C<{link}> map onto the specified
		1773	map. If the map is not valid (or omitted), the player will be moved back
		1774	to the location he/she was before the call to C<enter_link>, or, if that
		1775	fails, to the emergency map position.
		1776
		1777	Might block.
		1778
		1779	=cut
		1780
		1781	sub link_map {
		1782	unless ($LINK_MAP) {
		1783	$LINK_MAP = cf::map::find "{link}"
		1784	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1785	$LINK_MAP->load;
		1786	}
		1787
		1788	$LINK_MAP
		1789	}
		1790
		1791	sub cf::object::player::enter_link {
		1792	my ($self) = @_;
		1793
		1794	$self->deactivate_recursive;
		1795
		1796	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1797
		1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1799	if $self->map;
		1800
		1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1802	}
		1803
		1804	sub cf::object::player::leave_link {
		1805	my ($self, $map, $x, $y) = @_;
		1806
		1807	my $link_pos = delete $self->{_link_pos};
		1808
		1809	unless ($map) {
		1810	# restore original map position
		1811	($map, $x, $y) = @{ $link_pos || [] };
		1812	$map = cf::map::find $map;
		1813
		1814	unless ($map) {
		1815	($map, $x, $y) = @$EMERGENCY_POSITION;
		1816	$map = cf::map::find $map
		1817	or die "FATAL: cannot load emergency map\n";
		1818	}
		1819	}
		1820
		1821	($x, $y) = (-1, -1)
		1822	unless (defined $x) && (defined $y);
		1823
		1824	# use -1 or undef as default coordinates, not 0, 0
		1825	($x, $y) = ($map->enter_x, $map->enter_y)
		1826	if $x <=0 && $y <= 0;
		1827
		1828	$map->load;
		1829	$map->load_diag;
		1830
		1831	return unless $self->contr->active;
		1832	$self->activate_recursive;
		1833
		1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1835	$self->enter_map ($map, $x, $y);
		1836	}
		1837
		1838	cf::player->attach (
		1839	on_logout => sub {
		1840	my ($pl) = @_;
		1841
		1842	# abort map switching before logout
		1843	if ($pl->ob->{_link_pos}) {
		1844	cf::sync_job {
		1845	$pl->ob->leave_link
		1846	};
		1847	}
		1848	},
		1849	on_login => sub {
		1850	my ($pl) = @_;
		1851
		1852	# try to abort aborted map switching on player login :)
		1853	# should happen only on crashes
		1854	if ($pl->ob->{_link_pos}) {
		1855	$pl->ob->enter_link;
		1856	(async {
		1857	$pl->ob->reply (undef,
		1858	"There was an internal problem at your last logout, "
		1859	. "the server will try to bring you to your intended destination in a second.",
		1860	cf::NDI_RED);
		1861	# we need this sleep as the login has a concurrent enter_exit running
		1862	# and this sleep increases chances of the player not ending up in scorn
		1863	Coro::Timer::sleep 1;
		1864	$pl->ob->leave_link;
		1865	})->prio (2);
		1866	}
		1867	},
		1868	);
		1869
		1870	=item $player_object->goto ($path, $x, $y)
		1871
		1872	=cut
		1873
		1874	sub cf::object::player::goto {
		1875	my ($self, $path, $x, $y) = @_;
		1876
		1877	$self->enter_link;
		1878
		1879	(async {
		1880	my $map = eval {
		1881	my $map = cf::map::find $path;
		1882	$map = $map->customise_for ($self) if $map;
		1883	$map
		1884	} or
		1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1886
		1887	$self->leave_link ($map, $x, $y);
		1888	})->prio (1);
		1889	}
		1890
		1891	=item $player_object->enter_exit ($exit_object)
		1892
		1893	=cut
		1894
		1895	sub parse_random_map_params {
		1896	my ($spec) = @_;
		1897
		1898	my $rmp = { # defaults
		1899	xsize => (cf::rndm 15, 40),
		1900	ysize => (cf::rndm 15, 40),
		1901	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1902	#layout => string,
		1903	};
		1904
		1905	for (split /\n/, $spec) {
		1906	my ($k, $v) = split /\s+/, $_, 2;
		1907
		1908	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1909	}
		1910
		1911	$rmp
		1912	}
		1913
		1914	sub prepare_random_map {
		1915	my ($exit) = @_;
		1916
		1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1918
		1919	# all this does is basically replace the /! path by
		1920	# a new random map path (?random/...) with a seed
		1921	# that depends on the exit object
		1922
		1923	my $rmp = parse_random_map_params $exit->msg;
		1924
		1925	if ($exit->map) {
		1926	$rmp->{region} = $exit->region->name;
		1927	$rmp->{origin_map} = $exit->map->path;
		1928	$rmp->{origin_x} = $exit->x;
		1929	$rmp->{origin_y} = $exit->y;
		1930	}
		1931
		1932	$rmp->{random_seed} ||= $exit->random_seed;
		1933
		1934	my $data = cf::to_json $rmp;
		1935	my $md5 = Digest::MD5::md5_hex $data;
		1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1937
		1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1939	aio_write $fh, 0, (length $data), $data, 0;
		1940	undef $fh;
		1941	aio_rename "$meta~", $meta;
		1942
		1943	$exit->slaying ("?random/$md5");
		1944	$exit->msg (undef);
		1945	}
		1946	}
		1947
		1948	sub cf::object::player::enter_exit {
		1949	my ($self, $exit) = @_;
		1950
		1951	return unless $self->type == cf::PLAYER;
		1952
		1953	if ($exit->slaying eq "/!") {
		1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1955	cf::sync_job { prepare_random_map $exit };
		1956	}
		1957
		1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1959	my $hp = $exit->stats->hp;
		1960	my $sp = $exit->stats->sp;
		1961
		1962	$self->enter_link;
		1963
		1964	(async {
		1965	$self->deactivate_recursive; # just to be sure
		1966	unless (eval {
		1967	$self->goto ($slaying, $hp, $sp);
		1968
		1969	1;
		1970	}) {
		1971	$self->message ("Something went wrong deep within the crossfire server. "
		1972	. "I'll try to bring you back to the map you were before. "
		1973	. "Please report this to the dungeon master!",
		1974	cf::NDI_UNIQUE | cf::NDI_RED);
		1975
		1976	warn "ERROR in enter_exit: $@";
		1977	$self->leave_link;
		1978	}
		1979	})->prio (1);
		1980	}
		1981
834	=head3 cf::client	1982	=head3 cf::client
835		1983
836	=over 4	1984	=over 4
837		1985
838	=item $client->send_drawinfo ($text, $flags)	1986	=item $client->send_drawinfo ($text, $flags)
…		…
881	on_reply => sub {	2029	on_reply => sub {
882	my ($ns, $msg) = @_;	2030	my ($ns, $msg) = @_;
883		2031
884	# this weird shuffling is so that direct followup queries	2032	# this weird shuffling is so that direct followup queries
885	# get handled first	2033	# get handled first
886	my $queue = delete $ns->{query_queue};	2034	my $queue = delete $ns->{query_queue}
		2035	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2036
888	(shift @$queue)->[1]->($msg);	2037	(shift @$queue)->[1]->($msg);
		2038	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2039
890	push @{ $ns->{query_queue} }, @$queue;	2040	push @{ $ns->{query_queue} }, @$queue;
891		2041
892	if (@{ $ns->{query_queue} } == @$queue) {	2042	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2043	if (@$queue) {
…		…
897	}	2047	}
898	}	2048	}
899	},	2049	},
900	);	2050	);
901		2051
902	=item $client->coro (\&cb)	2052	=item $client->async (\&cb)
903		2053
904	Create a new coroutine, running the specified callback. The coroutine will	2054	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2055	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2056	or loss of connection).
907		2057
908	=cut	2058	=cut
909		2059
910	sub cf::client::coro {	2060	sub cf::client::async {
911	my ($self, $cb) = @_;	2061	my ($self, $cb) = @_;
912		2062
913	my $coro; $coro = async {	2063	my $coro = &Coro::async ($cb);
914	eval {	2064
915	$cb->();	2065	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2066	delete $self->{_coro}{$coro+0};
919	};	2067	});
920		2068
921	$self->{_coro}{$coro+0} = $coro;	2069	$self->{_coro}{$coro+0} = $coro;
		2070
		2071	$coro
922	}	2072	}
923		2073
924	cf::client->attach (	2074	cf::client->attach (
925	on_destroy => sub {	2075	on_destroy => sub {
926	my ($ns) = @_;	2076	my ($ns) = @_;
…		…
1054	The parameter C<$family> should best start with the name of the extension	2204	The parameter C<$family> should best start with the name of the extension
1055	using it, it should be unique.	2205	using it, it should be unique.
1056		2206
1057	=over 4	2207	=over 4
1058		2208
1059	=item $hashref = cf::db_get $family
1060
1061	Return a hashref for use by the extension C<$family>, which can be
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064
1065	=item $value = cf::db_get $family => $key	2209	=item $value = cf::db_get $family => $key
1066		2210
1067	Returns a single value from the database	2211	Returns a single value from the database.
1068
1069	=item cf::db_put $family => $hashref
1070
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073		2212
1074	=item cf::db_put $family => $key => $value	2213	=item cf::db_put $family => $key => $value
1075		2214
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you	2215	Stores the given C<$value> in the family.
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086		2216
1087	=cut	2217	=cut
1088		2218
1089	our $DB;	2219	our $DB;
1090		2220
1091	{	2221	sub db_init {
		2222	unless ($DB) {
		2223	$DB = BDB::db_create $DB_ENV;
		2224
		2225	cf::sync_job {
		2226	eval {
		2227	$DB->set_flags (BDB::CHKSUM);
		2228
		2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2231	cf::cleanup "db_open(db): $!" if $!;
		2232	};
		2233	cf::cleanup "db_open(db): $@" if $@;
		2234	};
		2235
1092	my $path = cf::localdir . "/database.pst";	2236	my $path = cf::localdir . "/database.pst";
		2237	if (stat $path) {
		2238	cf::sync_job {
		2239	my $pst = Storable::retrieve $path;
1093		2240
1094	sub db_load() {	2241	cf::db_put (board => data => $pst->{board});
1095	warn "loading database $path\n";#d# remove later	2242	cf::db_put (guildrules => data => $pst->{guildrules});
1096	$DB = stat $path ? Storable::retrieve $path : { };	2243	cf::db_put (rent => balance => $pst->{rent}{balance});
1097	}	2244	BDB::db_env_txn_checkpoint $DB_ENV;
1098		2245
1099	my $pid;	2246	unlink $path;
1100
1101	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}	2247	};
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});
1122
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}
1127
1128	sub db_get($;$) {
1129	@_ >= 2
1130	? $DB->{$_[0]}{$_[1]}
1131	: ($DB->{$_[0]} ||= { })
1132	}
1133
1134	sub db_put($$;$) {
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	2248	}
1148	);	2249	}
		2250	}
		2251
		2252	sub db_get($$) {
		2253	my $key = "$_[0]/$_[1]";
		2254
		2255	cf::sync_job {
		2256	BDB::db_get $DB, undef, $key, my $data;
		2257
		2258	$! ? ()
		2259	: Compress::LZF::sthaw $data
		2260	}
		2261	}
		2262
		2263	sub db_put($$$) {
		2264	BDB::dbreq_pri 4;
		2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1149	}	2266	}
1150		2267
1151	#############################################################################	2268	#############################################################################
1152	# the server's main()	2269	# the server's init and main functions
		2270
		2271	sub init_resources {
		2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2273	or die "unable to load regions file\n";#d#
		2274	}
1153		2275
1154	sub cfg_load {	2276	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2277	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2278	or return;
1157		2279
1158	local $/;	2280	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2281	*CFG = YAML::Syck::Load <$fh>;
		2282
		2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2284
		2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2287
		2288	if (exists $CFG{mlockall}) {
		2289	eval {
		2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2291	and die "WARNING: m(un)lockall failed: $!\n";
		2292	};
		2293	warn $@ if $@;
		2294	}
		2295	}
		2296
		2297	sub init {
		2298	init_resources;
1160	}	2299	}
1161		2300
1162	sub main {	2301	sub main {
		2302	# we must not ever block the main coroutine
		2303	local $Coro::idle = sub {
		2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2305	(async {
		2306	Event::one_event;
		2307	})->prio (Coro::PRIO_MAX);
		2308	};
		2309
1163	cfg_load;	2310	cfg_load;
1164	db_load;	2311	db_init;
1165	load_extensions;	2312	load_extensions;
		2313
		2314	$TICK_WATCHER->start;
1166	Event::loop;	2315	Event::loop;
1167	}	2316	}
1168		2317
1169	#############################################################################	2318	#############################################################################
1170	# initialisation	2319	# initialisation and cleanup
1171		2320
		2321	# install some emergency cleanup handlers
		2322	BEGIN {
		2323	for my $signal (qw(INT HUP TERM)) {
		2324	Event->signal (
		2325	reentrant => 0,
		2326	data => WF_AUTOCANCEL,
		2327	signal => $signal,
		2328	prio => 0,
		2329	cb => sub {
		2330	cf::cleanup "SIG$signal";
		2331	},
		2332	);
		2333	}
		2334	}
		2335
		2336	sub emergency_save() {
		2337	my $freeze_guard = cf::freeze_mainloop;
		2338
		2339	warn "enter emergency perl save\n";
		2340
		2341	cf::sync_job {
		2342	# use a peculiar iteration method to avoid tripping on perl
		2343	# refcount bugs in for. also avoids problems with players
		2344	# and maps saved/destroyed asynchronously.
		2345	warn "begin emergency player save\n";
		2346	for my $login (keys %cf::PLAYER) {
		2347	my $pl = $cf::PLAYER{$login} or next;
		2348	$pl->valid or next;
		2349	$pl->save;
		2350	}
		2351	warn "end emergency player save\n";
		2352
		2353	warn "begin emergency map save\n";
		2354	for my $path (keys %cf::MAP) {
		2355	my $map = $cf::MAP{$path} or next;
		2356	$map->valid or next;
		2357	$map->save;
		2358	}
		2359	warn "end emergency map save\n";
		2360
		2361	warn "begin emergency database checkpoint\n";
		2362	BDB::db_env_txn_checkpoint $DB_ENV;
		2363	warn "end emergency database checkpoint\n";
		2364	};
		2365
		2366	warn "leave emergency perl save\n";
		2367	}
		2368
		2369	sub post_cleanup {
		2370	my ($make_core) = @_;
		2371
		2372	warn Carp::longmess "post_cleanup backtrace"
		2373	if $make_core;
		2374	}
		2375
1172	sub _perl_reload(&) {	2376	sub reload() {
1173	my ($msg) = @_;	2377	# can/must only be called in main
		2378	if ($Coro::current != $Coro::main) {
		2379	warn "can only reload from main coroutine";
		2380	return;
		2381	}
1174		2382
1175	$msg->("reloading...");	2383	warn "reloading...";
1176		2384
1177	eval {	2385	warn "entering sync_job";
1178	# cancel all watchers	2386
		2387	cf::sync_job {
		2388	cf::write_runtime; # external watchdog should not bark
		2389	cf::emergency_save;
		2390	cf::write_runtime; # external watchdog should not bark
		2391
		2392	warn "syncing database to disk";
		2393	BDB::db_env_txn_checkpoint $DB_ENV;
		2394
		2395	# if anything goes wrong in here, we should simply crash as we already saved
		2396
		2397	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	2398	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2399	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2400	}
1182		2401
1183	# unload all extensions	2402	warn "flushing outstanding aio requests";
1184	for (@exts) {	2403	for (;;) {
1185	$msg->("unloading <$_>");	2404	BDB::flush;
1186	unload_extension $_;	2405	IO::AIO::flush;
		2406	Coro::cede;
		2407	last unless IO::AIO::nreqs || BDB::nreqs;
		2408	warn "iterate...";
		2409	}
		2410
		2411	warn "cancelling all extension coros";
		2412	$_->cancel for values %EXT_CORO;
		2413	%EXT_CORO = ();
		2414
		2415	warn "removing commands";
		2416	%COMMAND = ();
		2417
		2418	warn "removing ext commands";
		2419	%EXTCMD = ();
		2420
		2421	warn "unloading/nuking all extensions";
		2422	for my $pkg (@EXTS) {
		2423	warn "... unloading $pkg";
		2424
		2425	if (my $cb = $pkg->can ("unload")) {
		2426	eval {
		2427	$cb->($pkg);
		2428	1
		2429	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2430	}
1188		2431
		2432	warn "... nuking $pkg";
		2433	Symbol::delete_package $pkg;
		2434	}
		2435
1189	# unload all modules loaded from $LIBDIR	2436	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2437	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2439
1193	$msg->("removing <$k>");	2440	warn "... unloading $k";
1194	delete $INC{$k};	2441	delete $INC{$k};
1195		2442
1196	$k =~ s/\.pm$//;	2443	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2444	$k =~ s/\//::/g;
1198		2445
…		…
1201	}	2448	}
1202		2449
1203	Symbol::delete_package $k;	2450	Symbol::delete_package $k;
1204	}	2451	}
1205		2452
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2453	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2454	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2456
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2457	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2458	delete $INC{"cf.pm"};
1218		2459
1219	# don't, removes xs symbols, too,	2460	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2461	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2462	#Symbol::delete_package __PACKAGE__;
1222		2463
1223	# reload cf.pm	2464	warn "unload completed, starting to reload now";
		2465
1224	$msg->("reloading cf.pm");	2466	warn "reloading cf.pm";
1225	require cf;	2467	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2469
1228	# load config and database again	2470	warn "loading config and database again";
1229	cf::cfg_load;	2471	cf::cfg_load;
1230	cf::db_load;
1231		2472
1232	# load extensions	2473	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	2474	cf::load_extensions;
1235		2475
1236	# reattach attachments to objects	2476	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");	2477	_global_reattach; # objects, sockets
1238	_global_reattach;	2478	warn "reattaching attachments to maps";
		2479	reattach $_ for values %MAP;
		2480	warn "reattaching attachments to players";
		2481	reattach $_ for values %PLAYER;
		2482
		2483	warn "loading reloadable resources";
		2484	init_resources;
		2485
		2486	warn "leaving sync_job";
		2487
		2488	1
		2489	} or do {
		2490	warn $@;
		2491	warn "error while reloading, exiting.";
		2492	exit 1;
1239	};	2493	};
1240	$msg->($@) if $@;
1241		2494
1242	$msg->("reloaded");	2495	warn "reloaded";
1243	};	2496	};
1244		2497
1245	sub perl_reload() {	2498	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {
1247	warn $_[0];
1248	print "$_[0]\n";
1249	};
1250	}
1251		2499
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	2500	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	2501	my ($who, $arg) = @_;
1256		2502
1257	if ($who->flag (FLAG_WIZ)) {	2503	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	2504	$who->message ("reloading server.");
1259	warn $_[0];	2505
1260	$who->message ($_[0]);	2506	# doing reload synchronously and two reloads happen back-to-back,
		2507	# coro crashes during coro_state_free->destroy here.
		2508
		2509	$RELOAD_WATCHER ||= Event->timer (
		2510	reentrant => 0,
		2511	after => 0,
		2512	data => WF_AUTOCANCEL,
		2513	cb => sub {
		2514	reload;
		2515	undef $RELOAD_WATCHER;
		2516	},
1261	};	2517	);
1262	}	2518	}
1263	};	2519	};
1264		2520
1265	unshift @INC, $LIBDIR;	2521	unshift @INC, $LIBDIR;
1266		2522
		2523	my $bug_warning = 0;
		2524
1267	$TICK_WATCHER = Event->timer (	2525	$TICK_WATCHER = Event->timer (
		2526	reentrant => 0,
		2527	parked => 1,
1268	prio => 0,	2528	prio => 0,
1269	at => $NEXT_TICK || 1,	2529	at => $NEXT_TICK || $TICK,
1270	data => WF_AUTOCANCEL,	2530	data => WF_AUTOCANCEL,
1271	cb => sub {	2531	cb => sub {
		2532	if ($Coro::current != $Coro::main) {
		2533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2534	unless ++$bug_warning > 10;
		2535	return;
		2536	}
		2537
		2538	$NOW = Event::time;
		2539
1272	cf::server_tick; # one server iteration	2540	cf::server_tick; # one server iteration
1273		2541	$RUNTIME += $TICK;
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;	2542	$NEXT_TICK += $TICK;
1276		2543
		2544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2546	Coro::async_pool {
		2547	write_runtime
		2548	or warn "ERROR: unable to write runtime file: $!";
		2549	};
		2550	}
		2551
		2552	$WAIT_FOR_TICK->broadcast;
		2553	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2554
		2555	# my $AFTER = Event::time;
		2556	# warn $AFTER - $NOW;#d#
		2557
1277	# if we are delayed by four ticks or more, skip them all	2558	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2559	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1279		2560
1280	$TICK_WATCHER->at ($NEXT_TICK);	2561	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	2562	$TICK_WATCHER->start;
1282	},	2563	},
1283	);	2564	);
1284		2565
		2566	{
		2567	BDB::max_poll_time $TICK * 0.1;
		2568	$BDB_POLL_WATCHER = Event->io (
		2569	reentrant => 0,
		2570	fd => BDB::poll_fileno,
		2571	poll => 'r',
		2572	prio => 0,
		2573	data => WF_AUTOCANCEL,
		2574	cb => \&BDB::poll_cb,
		2575	);
		2576	BDB::min_parallel 8;
		2577
		2578	BDB::set_sync_prepare {
		2579	my $status;
		2580	my $current = $Coro::current;
		2581	(
		2582	sub {
		2583	$status = $!;
		2584	$current->ready; undef $current;
		2585	},
		2586	sub {
		2587	Coro::schedule while defined $current;
		2588	$! = $status;
		2589	},
		2590	)
		2591	};
		2592
		2593	unless ($DB_ENV) {
		2594	$DB_ENV = BDB::db_env_create;
		2595
		2596	cf::sync_job {
		2597	eval {
		2598	BDB::db_env_open
		2599	$DB_ENV,
		2600	$BDB_ENV_DIR,
		2601	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2602	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2603	0666;
		2604
		2605	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2606
		2607	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2608	$DB_ENV->set_lk_detect;
		2609	};
		2610
		2611	cf::cleanup "db_env_open(db): $@" if $@;
		2612	};
		2613	}
		2614	}
		2615
		2616	{
		2617	IO::AIO::min_parallel 8;
		2618
		2619	undef $Coro::AIO::WATCHER;
1285	IO::AIO::max_poll_time $TICK * 0.2;	2620	IO::AIO::max_poll_time $TICK * 0.1;
1286		2621	$AIO_POLL_WATCHER = Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	2622	reentrant => 0,
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,	2623	data => WF_AUTOCANCEL,
		2624	fd => IO::AIO::poll_fileno,
		2625	poll => 'r',
		2626	prio => 6,
1291	cb => \&IO::AIO::poll_cb);	2627	cb => \&IO::AIO::poll_cb,
		2628	);
		2629	}
		2630
		2631	END { cf::emergency_save }
1292		2632
1293	1	2633	1
1294		2634

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