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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.225 by root, Wed Mar 14 00:04:58 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
		20	use Coro::AIO;
18		21
		22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
		25	use Fcntl;
19	use IO::AIO 2.3;	26	use IO::AIO 2.32 ();
20	use YAML::Syck ();	27	use YAML::Syck ();
21	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
22		30
		31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	33	$Event::Eval = 1; # no idea why this is required, but it is
		34
		35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
24		36
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	38	$YAML::Syck::ImplicitUnicode = 1;
27		39
28	$Coro::main->prio (Coro::PRIO_MIN);	40	$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		41
32	our %COMMAND = ();	42	our %COMMAND = ();
33	our %COMMAND_TIME = ();	43	our %COMMAND_TIME = ();
		44
		45	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	46	our %EXTCMD = ();
		47	our %EXT_CORO = (); # coroutines bound to extensions
		48	our %EXT_MAP = (); # pluggable maps
35		49
		50	our $RELOAD; # number of reloads so far
36	our @EVENT;	51	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	52	our $LIBDIR = datadir . "/ext";
38		53
39	our $TICK = MAX_TIME * 1e-6;	54	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	55	our $TICK_WATCHER;
		56	our $AIO_POLL_WATCHER;
		57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	58	our $NEXT_TICK;
		59	our $NOW;
		60	our $USE_FSYNC = 1; # use fsync to write maps - default off
		61
		62	our $BDB_POLL_WATCHER;
		63	our $DB_ENV;
42		64
43	our %CFG;	65	our %CFG;
44		66
45	our $UPTIME; $UPTIME ||= time;	67	our $UPTIME; $UPTIME ||= time;
		68	our $RUNTIME;
		69
		70	our %PLAYER; # all users
		71	our %MAP; # all maps
		72	our $LINK_MAP; # the special {link} map, which is always available
		73	our $RANDOM_MAPS = cf::localdir . "/random";
		74	our $BDB_ENV_DIR = cf::localdir . "/db";
		75
		76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		78
		79	# used to convert map paths into valid unix filenames by replacing / by ∕
		80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		81
		82	binmode STDOUT;
		83	binmode STDERR;
		84
		85	# read virtual server time, if available
		86	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		87	open my $fh, "<", cf::localdir . "/runtime"
		88	or die "unable to read runtime file: $!";
		89	$RUNTIME = <$fh> + 0.;
		90	}
		91
		92	mkdir cf::localdir;
		93	mkdir cf::localdir . "/" . cf::playerdir;
		94	mkdir cf::localdir . "/" . cf::tmpdir;
		95	mkdir cf::localdir . "/" . cf::uniquedir;
		96	mkdir $RANDOM_MAPS;
		97	mkdir $BDB_ENV_DIR;
		98
		99	our $EMERGENCY_POSITION;
		100
		101	sub cf::map::normalise;
46		102
47	#############################################################################	103	#############################################################################
48		104
49	=head2 GLOBAL VARIABLES	105	=head2 GLOBAL VARIABLES
50		106
51	=over 4	107	=over 4
52		108
53	=item $cf::UPTIME	109	=item $cf::UPTIME
54		110
55	The timestamp of the server start (so not actually an uptime).	111	The timestamp of the server start (so not actually an uptime).
		112
		113	=item $cf::RUNTIME
		114
		115	The time this server has run, starts at 0 and is increased by $cf::TICK on
		116	every server tick.
56		117
57	=item $cf::LIBDIR	118	=item $cf::LIBDIR
58		119
59	The perl library directory, where extensions and cf-specific modules can	120	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	121	be found. It will be added to C<@INC> automatically.
61		122
		123	=item $cf::NOW
		124
		125	The time of the last (current) server tick.
		126
62	=item $cf::TICK	127	=item $cf::TICK
63		128
64	The interval between server ticks, in seconds.	129	The interval between server ticks, in seconds.
65		130
66	=item %cf::CFG	131	=item %cf::CFG
67		132
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	133	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	134	from wherever your confdir points to.
		135
		136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		137
		138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		140	processing has been done. Call C<< ->wait >> on them to maximise the
		141	window of cpu time available, or simply to synchronise to the server tick.
70		142
71	=back	143	=back
72		144
73	=cut	145	=cut
74		146
75	BEGIN {	147	BEGIN {
76	*CORE::GLOBAL::warn = sub {	148	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	149	my $msg = join "", @_;
		150	utf8::encode $msg;
		151
78	$msg .= "\n"	152	$msg .= "\n"
79	unless $msg =~ /\n$/;	153	unless $msg =~ /\n$/;
80		154
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	155	LOG llevError, $msg;
83	};	156	};
84	}	157	}
85		158
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		178
106	$Event::DIED = sub {	179	$Event::DIED = sub {
107	warn "error in event callback: @_";	180	warn "error in event callback: @_";
108	};	181	};
109		182
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	183	=head2 UTILITY FUNCTIONS
115		184
116	=over 4	185	=over 4
117		186
		187	=item dumpval $ref
		188
118	=cut	189	=cut
		190
		191	sub dumpval {
		192	eval {
		193	local $SIG{__DIE__};
		194	my $d;
		195	if (1) {
		196	$d = new Data::Dumper([$_[0]], ["*var"]);
		197	$d->Terse(1);
		198	$d->Indent(2);
		199	$d->Quotekeys(0);
		200	$d->Useqq(1);
		201	#$d->Bless(...);
		202	$d->Seen($_[1]) if @_ > 1;
		203	$d = $d->Dump();
		204	}
		205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		206	$d
		207	} || "[unable to dump $_[0]: '$@']";
		208	}
119		209
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	210	use JSON::Syck (); # TODO# replace by JSON::PC once working
121		211
122	=item $ref = cf::from_json $json	212	=item $ref = cf::from_json $json
123		213
…		…
137	=cut	227	=cut
138		228
139	sub to_json($) {	229	sub to_json($) {
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	230	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
141	JSON::Syck::Dump $_[0]	231	JSON::Syck::Dump $_[0]
		232	}
		233
		234	=item cf::lock_wait $string
		235
		236	Wait until the given lock is available. See cf::lock_acquire.
		237
		238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=cut
		249
		250	our %LOCK;
		251
		252	sub lock_wait($) {
		253	my ($key) = @_;
		254
		255	# wait for lock, if any
		256	while ($LOCK{$key}) {
		257	push @{ $LOCK{$key} }, $Coro::current;
		258	Coro::schedule;
		259	}
		260	}
		261
		262	sub lock_acquire($) {
		263	my ($key) = @_;
		264
		265	# wait, to be sure we are not locked
		266	lock_wait $key;
		267
		268	$LOCK{$key} = [];
		269
		270	Coro::guard {
		271	# wake up all waiters, to be on the safe side
		272	$_->ready for @{ delete $LOCK{$key} };
		273	}
		274	}
		275
		276	sub freeze_mainloop {
		277	return unless $TICK_WATCHER->is_active;
		278
		279	my $guard = Coro::guard {
		280	$TICK_WATCHER->start;
		281	};
		282	$TICK_WATCHER->stop;
		283	$guard
		284	}
		285
		286	=item cf::async { BLOCK }
		287
		288	Currently the same as Coro::async_pool, meaning you cannot use
		289	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		290	thing you are allowed to do is call C<prio> on it.
		291
		292	=cut
		293
		294	BEGIN { *async = \&Coro::async_pool }
		295
		296	=item cf::sync_job { BLOCK }
		297
		298	The design of crossfire+ requires that the main coro ($Coro::main) is
		299	always able to handle events or runnable, as crossfire+ is only partly
		300	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		301
		302	If it must be done, put the blocking parts into C<sync_job>. This will run
		303	the given BLOCK in another coroutine while waiting for the result. The
		304	server will be frozen during this time, so the block should either finish
		305	fast or be very important.
		306
		307	=cut
		308
		309	sub sync_job(&) {
		310	my ($job) = @_;
		311
		312	if ($Coro::current == $Coro::main) {
		313	# this is the main coro, too bad, we have to block
		314	# till the operation succeeds, freezing the server :/
		315
		316	# TODO: use suspend/resume instead
		317	# (but this is cancel-safe)
		318	my $freeze_guard = freeze_mainloop;
		319
		320	my $busy = 1;
		321	my @res;
		322
		323	(async {
		324	@res = eval { $job->() };
		325	warn $@ if $@;
		326	undef $busy;
		327	})->prio (Coro::PRIO_MAX);
		328
		329	while ($busy) {
		330	Coro::cede or Event::one_event;
		331	}
		332
		333	wantarray ? @res : $res[0]
		334	} else {
		335	# we are in another coroutine, how wonderful, everything just works
		336
		337	$job->()
		338	}
		339	}
		340
		341	=item $coro = cf::async_ext { BLOCK }
		342
		343	Like async, but this coro is automatically being canceled when the
		344	extension calling this is being unloaded.
		345
		346	=cut
		347
		348	sub async_ext(&) {
		349	my $cb = shift;
		350
		351	my $coro = &Coro::async ($cb);
		352
		353	$coro->on_destroy (sub {
		354	delete $EXT_CORO{$coro+0};
		355	});
		356	$EXT_CORO{$coro+0} = $coro;
		357
		358	$coro
		359	}
		360
		361	sub write_runtime {
		362	my $guard = cf::lock_acquire "write_runtime";
		363
		364	my $runtime = cf::localdir . "/runtime";
		365
		366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		367	or return;
		368
		369	my $value = $cf::RUNTIME + 90 + 10;
		370	# 10 is the runtime save interval, for a monotonic clock
		371	# 60 allows for the watchdog to kill the server.
		372
		373	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		374	and return;
		375
		376	# always fsync - this file is important
		377	aio_fsync $fh
		378	and return;
		379
		380	close $fh
		381	or return;
		382
		383	aio_rename "$runtime~", $runtime
		384	and return;
		385
		386	1
142	}	387	}
143		388
144	=back	389	=back
145		390
146	=cut	391	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	523	our @CB_MAP = ();
279		524
280	my %attachment;	525	my %attachment;
281		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
282	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
284		535
285	use sort 'stable';	536	use sort 'stable';
286		537
…		…
457	# object support	708	# object support
458		709
459	sub reattach {	710	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		715
463	my $registry = $obj->registry;	716	my $registry = $obj->registry;
464		717
465	@$registry = ();	718	@$registry = ();
466		719
…		…
505	);	758	);
506		759
507	sub object_freezer_save {	760	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	761	my ($filename, $rdata, $objs) = @_;
509		762
		763	sync_job {
510	if (length $$rdata) {	764	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	765	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
513		767
514	if (open my $fh, ">:raw", "$filename~") {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		771	aio_fsync $fh if $cf::USE_FSYNC;
522	close $fh;	772	close $fh;
		773
		774	if (@$objs) {
		775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		776	chmod SAVE_MODE, $fh;
		777	my $data = Storable::nfreeze { version => 1, objs => $objs };
		778	aio_write $fh, 0, (length $data), $data, 0;
		779	aio_fsync $fh if $cf::USE_FSYNC;
		780	close $fh;
523	rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
		782	}
		783	} else {
		784	aio_unlink "$filename.pst";
		785	}
		786
		787	aio_rename "$filename~", $filename;
524	} else {	788	} else {
525	unlink "$filename.pst";	789	warn "FATAL: $filename~: $!\n";
526	}	790	}
527
528	rename "$filename~", $filename;
529	} else {	791	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	792	aio_unlink $filename;
534	unlink "$filename.pst";	793	aio_unlink "$filename.pst";
		794	}
535	}	795	}
536	}	796	}
537		797
538	sub object_freezer_as_string {	798	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
544	}	804	}
545		805
546	sub object_thawer_load {	806	sub object_thawer_load {
547	my ($filename) = @_;	807	my ($filename) = @_;
548		808
549	local $/;	809	my ($data, $av);
550		810
551	my $av;	811	(aio_load $filename, $data) >= 0
		812	or return;
552		813
553	#TODO: use sysread etc.	814	unless (aio_stat "$filename.pst") {
554	if (open my $data, "<:raw:perlio", $filename) {	815	(aio_load "$filename.pst", $av) >= 0
555	$data = <$data>;	816	or return;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
558	}	818	}
		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
559	return ($data, $av);	822	return ($data, $av);
560	}
561
562	()
563	}	823	}
564		824
565	#############################################################################	825	#############################################################################
566	# command handling &c	826	# command handling &c
567		827
…		…
591	=cut	851	=cut
592		852
593	sub register_extcmd {	853	sub register_extcmd {
594	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
595		855
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
600	}	857	}
601		858
602	cf::player->attach (	859	cf::player->attach (
603	on_command => sub {	860	on_command => sub {
604	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
617		874
618	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
619		876
620	if (ref $msg) {	877	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	881	}
625	}	882	}
626	} else {	883	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		886
630	cf::override;	887	cf::override;
631	},	888	},
632	);	889	);
633		890
634	sub register {
635	my ($base, $pkg) = @_;
636
637	#TODO
638	}
639
640	sub load_extension {	891	sub load_extension {
641	my ($path) = @_;	892	my ($path) = @_;
642		893
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
644	my $base = $1;	895	my $base = $1;
645	my $pkg = $1;	896	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
648		899
649	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
650		901
651	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
652	or die "$path: $!";	903	or die "$path: $!";
653		904
654	my $source =	905	my $source =
655	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
658	. "\n};\n1";	909	. "\n};\n1";
659		910
660	eval $source	911	unless (eval $source) {
661	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
662	: "extension disabled.\n";	913	: "extension disabled.\n";
663		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
664	push @exts, $pkg;	915	warn $@;
665	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
666		917	exit 1;
667	# no strict 'refs';	918	}
668	# @{"$pkg\::ISA"} = ext::;	919	die $@;
669
670	register $base, $pkg;
671	}
672
673	sub unload_extension {
674	my ($pkg) = @_;
675
676	warn "removing extension $pkg\n";
677
678	# remove hooks
679	#TODO
680	# for my $idx (0 .. $#PLUGIN_EVENT) {
681	# delete $hook[$idx]{$pkg};
682	# }	920	}
683		921
684	# remove commands	922	push @EXTS, $pkg;
685	for my $name (keys %COMMAND) {
686	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
687
688	if (@cb) {
689	$COMMAND{$name} = \@cb;
690	} else {
691	delete $COMMAND{$name};
692	}
693	}
694
695	# remove extcmds
696	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
697	delete $EXTCMD{$name};
698	}
699
700	if (my $cb = $pkg->can ("unload")) {
701	eval {
702	$cb->($pkg);
703	1
704	} or warn "$pkg unloaded, but with errors: $@";
705	}
706
707	Symbol::delete_package $pkg;
708	}	923	}
709		924
710	sub load_extensions {	925	sub load_extensions {
711	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
712	next unless -r $ext;	927	next unless -r $ext;
…		…
716	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
717	}	932	}
718	}	933	}
719		934
720	#############################################################################	935	#############################################################################
721	# load/save/clean perl data associated with a map
722		936
723	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
		1127	}
		1128
		1129	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1130
		1131	Sends an ext reply to the player.
		1132
		1133	=cut
		1134
		1135	sub ext_reply($$$%) {
		1136	my ($self, $id, %msg) = @_;
		1137
		1138	$msg{msgid} = $id;
		1139
		1140	$self->send ("ext " . cf::to_json \%msg);
		1141	}
		1142
		1143	package cf;
		1144
		1145	=back
		1146
		1147
		1148	=head3 cf::map
		1149
		1150	=over 4
		1151
		1152	=cut
		1153
		1154	package cf::map;
		1155
		1156	use Fcntl;
		1157	use Coro::AIO;
		1158
		1159	use overload
		1160	'""' => \&as_string,
		1161	fallback => 1;
		1162
		1163	our $MAX_RESET = 3600;
		1164	our $DEFAULT_RESET = 3000;
		1165
		1166	sub generate_random_map {
		1167	my ($self, $rmp) = @_;
		1168	# mit "rum" bekleckern, nicht
		1169	$self->_create_random_map (
		1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1173	$rmp->{exit_on_final_map},
		1174	$rmp->{xsize}, $rmp->{ysize},
		1175	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1176	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1177	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1178	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1179	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1180	(cf::region::find $rmp->{region}), $rmp->{custom}
		1181	)
		1182	}
		1183
		1184	=item cf::map->register ($regex, $prio)
		1185
		1186	Register a handler for the map path matching the given regex at the
		1187	givne priority (higher is better, built-in handlers have priority 0, the
		1188	default).
		1189
		1190	=cut
		1191
		1192	sub register {
		1193	my (undef, $regex, $prio) = @_;
		1194	my $pkg = caller;
		1195
		1196	no strict;
		1197	push @{"$pkg\::ISA"}, __PACKAGE__;
		1198
		1199	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1200	}
		1201
		1202	# also paths starting with '/'
		1203	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1204
		1205	sub thawer_merge {
		1206	my ($self, $merge) = @_;
		1207
		1208	# we have to keep some variables in memory intact
		1209	local $self->{path};
		1210	local $self->{load_path};
		1211	local $self->{deny_save};
		1212	local $self->{deny_reset};
		1213
		1214	$self->SUPER::thawer_merge ($merge);
		1215	}
		1216
		1217	sub normalise {
		1218	my ($path, $base) = @_;
		1219
		1220	$path = "$path"; # make sure its a string
		1221
		1222	$path =~ s/\.map$//;
		1223
		1224	# map plan:
		1225	#
		1226	# /! non-realised random map exit (special hack!)
		1227	# {... are special paths that are not being touched
		1228	# ?xxx/... are special absolute paths
		1229	# ?random/... random maps
		1230	# /... normal maps
		1231	# ~user/... per-player map of a specific user
		1232
		1233	$path =~ s/$PATH_SEP/\//go;
		1234
		1235	# treat it as relative path if it starts with
		1236	# something that looks reasonable
		1237	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1238	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1239
		1240	$base =~ s{[^/]+/?$}{};
		1241	$path = "$base/$path";
		1242	}
		1243
		1244	for ($path) {
		1245	redo if s{//}{/};
		1246	redo if s{/\.?/}{/};
		1247	redo if s{/[^/]+/\.\./}{/};
		1248	}
		1249
		1250	$path
		1251	}
		1252
		1253	sub new_from_path {
		1254	my (undef, $path, $base) = @_;
		1255
		1256	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1257
		1258	$path = normalise $path, $base;
		1259
		1260	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1261	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1262	my $self = bless cf::map::new, $pkg;
		1263	$self->{path} = $path; $self->path ($path);
		1264	$self->init; # pass $1 etc.
		1265	return $self;
		1266	}
		1267	}
		1268
		1269	Carp::carp "unable to resolve path '$path' (base '$base').";
		1270	()
		1271	}
		1272
		1273	sub init {
		1274	my ($self) = @_;
		1275
		1276	$self
		1277	}
		1278
		1279	sub as_string {
		1280	my ($self) = @_;
		1281
		1282	"$self->{path}"
		1283	}
		1284
		1285	# the displayed name, this is a one way mapping
		1286	sub visible_name {
		1287	&as_string
		1288	}
		1289
		1290	# the original (read-only) location
		1291	sub load_path {
		1292	my ($self) = @_;
		1293
		1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1295	}
		1296
		1297	# the temporary/swap location
		1298	sub save_path {
		1299	my ($self) = @_;
		1300
		1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1303	}
		1304
		1305	# the unique path, undef == no special unique path
		1306	sub uniq_path {
		1307	my ($self) = @_;
		1308
		1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1311	}
		1312
		1313	# and all this just because we cannot iterate over
		1314	# all maps in C++...
		1315	sub change_all_map_light {
		1316	my ($change) = @_;
		1317
		1318	$_->change_map_light ($change)
		1319	for grep $_->outdoor, values %cf::MAP;
		1320	}
		1321
		1322	sub unlink_save {
		1323	my ($self) = @_;
		1324
		1325	utf8::encode (my $save = $self->save_path);
		1326	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1327	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1328	}
		1329
		1330	sub load_header_from($) {
		1331	my ($self, $path) = @_;
		1332
		1333	utf8::encode $path;
		1334	#aio_open $path, O_RDONLY, 0
		1335	# or return;
		1336
		1337	$self->_load_header ($path)
		1338	or return;
		1339
		1340	$self->{load_path} = $path;
		1341
		1342	1
		1343	}
		1344
		1345	sub load_header_orig {
		1346	my ($self) = @_;
		1347
		1348	$self->load_header_from ($self->load_path)
		1349	}
		1350
		1351	sub load_header_temp {
		1352	my ($self) = @_;
		1353
		1354	$self->load_header_from ($self->save_path)
		1355	}
		1356
		1357	sub prepare_temp {
		1358	my ($self) = @_;
		1359
		1360	$self->last_access ((delete $self->{last_access})
		1361	|| $cf::RUNTIME); #d#
		1362	# safety
		1363	$self->{instantiate_time} = $cf::RUNTIME
		1364	if $self->{instantiate_time} > $cf::RUNTIME;
		1365	}
		1366
		1367	sub prepare_orig {
		1368	my ($self) = @_;
		1369
		1370	$self->{load_original} = 1;
		1371	$self->{instantiate_time} = $cf::RUNTIME;
		1372	$self->last_access ($cf::RUNTIME);
		1373	$self->instantiate;
		1374	}
		1375
		1376	sub load_header {
		1377	my ($self) = @_;
		1378
		1379	if ($self->load_header_temp) {
		1380	$self->prepare_temp;
		1381	} else {
		1382	$self->load_header_orig
		1383	or return;
		1384	$self->prepare_orig;
		1385	}
		1386
		1387	1
		1388	}
		1389
		1390	sub find;
		1391	sub find {
		1392	my ($path, $origin) = @_;
		1393
		1394	$path = normalise $path, $origin && $origin->path;
		1395
		1396	cf::lock_wait "map_find:$path";
		1397
		1398	$cf::MAP{$path} || do {
		1399	my $guard = cf::lock_acquire "map_find:$path";
		1400	my $map = new_from_path cf::map $path
		1401	or return;
		1402
		1403	$map->{last_save} = $cf::RUNTIME;
		1404
		1405	$map->load_header
		1406	or return;
		1407
		1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1409	# doing this can freeze the server in a sync job, obviously
		1410	#$cf::WAIT_FOR_TICK->wait;
		1411	$map->reset;
		1412	undef $guard;
		1413	return find $path;
		1414	}
		1415
		1416	$cf::MAP{$path} = $map
		1417	}
		1418	}
		1419
		1420	sub pre_load { }
		1421	sub post_load { }
		1422
		1423	sub load {
		1424	my ($self) = @_;
		1425
		1426	local $self->{deny_reset} = 1; # loading can take a long time
		1427
		1428	my $path = $self->{path};
		1429	my $guard = cf::lock_acquire "map_load:$path";
		1430
		1431	return if $self->in_memory != cf::MAP_SWAPPED;
		1432
		1433	$self->in_memory (cf::MAP_LOADING);
		1434
		1435	$self->alloc;
		1436
		1437	$self->pre_load;
		1438
		1439	$self->_load_objects ($self->{load_path}, 1)
		1440	or return;
		1441
		1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1443	if delete $self->{load_original};
		1444
		1445	if (my $uniq = $self->uniq_path) {
		1446	utf8::encode $uniq;
		1447	if (aio_open $uniq, O_RDONLY, 0) {
		1448	$self->clear_unique_items;
		1449	$self->_load_objects ($uniq, 0);
		1450	}
		1451	}
		1452
		1453	Coro::cede;
		1454
		1455	# now do the right thing for maps
		1456	$self->link_multipart_objects;
		1457
		1458	unless ($self->{deny_activate}) {
		1459	$self->decay_objects;
		1460	$self->fix_auto_apply;
		1461	$self->update_buttons;
		1462	Coro::cede;
		1463	$self->set_darkness_map;
		1464	$self->difficulty ($self->estimate_difficulty)
		1465	unless $self->difficulty;
		1466	Coro::cede;
		1467	$self->activate;
		1468	}
		1469
		1470	$self->post_load;
		1471
		1472	$self->in_memory (cf::MAP_IN_MEMORY);
		1473	}
		1474
		1475	sub customise_for {
		1476	my ($self, $ob) = @_;
		1477
		1478	return find "~" . $ob->name . "/" . $self->{path}
		1479	if $self->per_player;
		1480
		1481	$self
		1482	}
		1483
		1484	# find and load all maps in the 3x3 area around a map
		1485	sub load_diag {
724	my ($map) = @_;	1486	my ($map) = @_;
725		1487
726	my $path = $map->tmpname;	1488	my @diag; # diagonal neighbours
727	defined $path or return;
728		1489
729	unlink "$path.pst";	1490	for (0 .. 3) {
730	};	1491	my $neigh = $map->tile_path ($_)
		1492	or next;
		1493	$neigh = find $neigh, $map
		1494	or next;
		1495	$neigh->load;
731		1496
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1499	}
733		1500
734	#############################################################################	1501	for (@diag) {
735	# load/save perl data associated with player->ob objects	1502	my $neigh = find @$_
736		1503	or next;
737	sub all_objects(@) {	1504	$neigh->load;
738	@_, map all_objects ($_->inv), @_	1505	}
739	}	1506	}
740		1507
741	# TODO: compatibility cruft, remove when no longer needed	1508	sub find_sync {
742	cf::player->attach (	1509	my ($path, $origin) = @_;
743	on_load => sub {
744	my ($pl, $path) = @_;
745		1510
746	for my $o (all_objects $pl->ob) {	1511	cf::sync_job { find $path, $origin }
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1512	}
748	$o->set_ob_key_value ("_perl_data");
749		1513
750	%$o = %{ Storable::thaw pack "H*", $value };	1514	sub do_load_sync {
		1515	my ($map) = @_;
		1516
		1517	cf::sync_job { $map->load };
		1518	}
		1519
		1520	our %MAP_PREFETCH;
		1521	our $MAP_PREFETCHER = undef;
		1522
		1523	sub find_async {
		1524	my ($path, $origin) = @_;
		1525
		1526	$path = normalise $path, $origin && $origin->{path};
		1527
		1528	if (my $map = $cf::MAP{$path}) {
		1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1530	}
		1531
		1532	undef $MAP_PREFETCH{$path};
		1533	$MAP_PREFETCHER ||= cf::async {
		1534	while (%MAP_PREFETCH) {
		1535	for my $path (keys %MAP_PREFETCH) {
		1536	my $map = find $path
		1537	or next;
		1538	$map->load;
		1539
		1540	delete $MAP_PREFETCH{$path};
751	}	1541	}
752	}	1542	}
		1543	undef $MAP_PREFETCHER;
		1544	};
		1545	$MAP_PREFETCHER->prio (6);
		1546
		1547	()
		1548	}
		1549
		1550	sub save {
		1551	my ($self) = @_;
		1552
		1553	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1554
		1555	$self->{last_save} = $cf::RUNTIME;
		1556
		1557	return unless $self->dirty;
		1558
		1559	my $save = $self->save_path; utf8::encode $save;
		1560	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1561
		1562	$self->{load_path} = $save;
		1563
		1564	return if $self->{deny_save};
		1565
		1566	local $self->{last_access} = $self->last_access;#d#
		1567
		1568	cf::async {
		1569	$_->contr->save for $self->players;
		1570	};
		1571
		1572	if ($uniq) {
		1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1574	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1575	} else {
		1576	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
753	},	1577	}
754	);	1578	}
755		1579
756	#############################################################################	1580	sub swap_out {
		1581	my ($self) = @_;
757		1582
758	=head2 CORE EXTENSIONS	1583	# save first because save cedes
		1584	$self->save;
759		1585
760	Functions and methods that extend core crossfire objects.	1586	my $lock = cf::lock_acquire "map_data:" . $self->path;
761		1587
762	=head3 cf::player	1588	return if $self->players;
		1589	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1590	return if $self->{deny_save};
		1591
		1592	$self->clear;
		1593	$self->in_memory (cf::MAP_SWAPPED);
		1594	}
		1595
		1596	sub reset_at {
		1597	my ($self) = @_;
		1598
		1599	# TODO: safety, remove and allow resettable per-player maps
		1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1601	return 1e99 if $self->{deny_reset};
		1602
		1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1605
		1606	$time + $to
		1607	}
		1608
		1609	sub should_reset {
		1610	my ($self) = @_;
		1611
		1612	$self->reset_at <= $cf::RUNTIME
		1613	}
		1614
		1615	sub reset {
		1616	my ($self) = @_;
		1617
		1618	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1619
		1620	return if $self->players;
		1621	return if $self->isa ("ext::map_per_player");#d#
		1622
		1623	warn "resetting map ", $self->path;#d#
		1624
		1625	$self->in_memory (cf::MAP_SWAPPED);
		1626
		1627	# need to save uniques path
		1628	unless ($self->{deny_save}) {
		1629	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1630
		1631	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1632	if $uniq;
		1633	}
		1634
		1635	delete $cf::MAP{$self->path};
		1636
		1637	$self->clear;
		1638
		1639	$_->clear_links_to ($self) for values %cf::MAP;
		1640
		1641	$self->unlink_save;
		1642	$self->destroy;
		1643	}
		1644
		1645	my $nuke_counter = "aaaa";
		1646
		1647	sub nuke {
		1648	my ($self) = @_;
		1649
		1650	delete $cf::MAP{$self->path};
		1651
		1652	$self->unlink_save;
		1653
		1654	bless $self, "cf::map";
		1655	delete $self->{deny_reset};
		1656	$self->{deny_save} = 1;
		1657	$self->reset_timeout (1);
		1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1659
		1660	$cf::MAP{$self->path} = $self;
		1661
		1662	$self->reset; # polite request, might not happen
		1663	}
		1664
		1665	=item cf::map::unique_maps
		1666
		1667	Returns an arrayref of paths of all shared maps that have
		1668	instantiated unique items. May block.
		1669
		1670	=cut
		1671
		1672	sub unique_maps() {
		1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1674	or return;
		1675
		1676	my @paths;
		1677
		1678	for (@$files) {
		1679	utf8::decode $_;
		1680	next if /\.pst$/;
		1681	next unless /^$PATH_SEP/o;
		1682
		1683	push @paths, cf::map::normalise $_;
		1684	}
		1685
		1686	\@paths
		1687	}
		1688
		1689	package cf;
		1690
		1691	=back
		1692
		1693	=head3 cf::object
		1694
		1695	=cut
		1696
		1697	package cf::object;
763		1698
764	=over 4	1699	=over 4
765		1700
766	=item cf::player::exists $login	1701	=item $ob->inv_recursive
767		1702
768	Returns true when the given account exists.	1703	Returns the inventory of the object _and_ their inventories, recursively.
769		1704
770	=cut	1705	=cut
771		1706
772	sub cf::player::exists($) {	1707	sub inv_recursive_;
773	cf::player::find $_[0]	1708	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1709	map { $_, inv_recursive_ $_->inv } @_
775	}	1710	}
776		1711
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1712	sub inv_recursive {
778		1713	inv_recursive_ inv $_[0]
779	Sends an ext reply to the player.
780
781	=cut
782
783	sub cf::player::ext_reply($$$%) {
784	my ($self, $id, %msg) = @_;
785
786	$msg{msgid} = $id;
787
788	$self->send ("ext " . to_json \%msg);
789	}	1714	}
		1715
		1716	package cf;
790		1717
791	=back	1718	=back
792		1719
793	=head3 cf::object::player	1720	=head3 cf::object::player
794		1721
…		…
832	(ref $cf::CFG{"may_$access"}	1759	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1760	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1761	: $cf::CFG{"may_$access"})
835	}	1762	}
836		1763
		1764	=item $player_object->enter_link
		1765
		1766	Freezes the player and moves him/her to a special map (C<{link}>).
		1767
		1768	The player should be reasonably safe there for short amounts of time. You
		1769	I<MUST> call C<leave_link> as soon as possible, though.
		1770
		1771	Will never block.
		1772
		1773	=item $player_object->leave_link ($map, $x, $y)
		1774
		1775	Moves the player out of the special C<{link}> map onto the specified
		1776	map. If the map is not valid (or omitted), the player will be moved back
		1777	to the location he/she was before the call to C<enter_link>, or, if that
		1778	fails, to the emergency map position.
		1779
		1780	Might block.
		1781
		1782	=cut
		1783
		1784	sub link_map {
		1785	unless ($LINK_MAP) {
		1786	$LINK_MAP = cf::map::find "{link}"
		1787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1788	$LINK_MAP->load;
		1789	}
		1790
		1791	$LINK_MAP
		1792	}
		1793
		1794	sub cf::object::player::enter_link {
		1795	my ($self) = @_;
		1796
		1797	$self->deactivate_recursive;
		1798
		1799	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1800
		1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1802	if $self->map;
		1803
		1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1805	}
		1806
		1807	sub cf::object::player::leave_link {
		1808	my ($self, $map, $x, $y) = @_;
		1809
		1810	my $link_pos = delete $self->{_link_pos};
		1811
		1812	unless ($map) {
		1813	# restore original map position
		1814	($map, $x, $y) = @{ $link_pos || [] };
		1815	$map = cf::map::find $map;
		1816
		1817	unless ($map) {
		1818	($map, $x, $y) = @$EMERGENCY_POSITION;
		1819	$map = cf::map::find $map
		1820	or die "FATAL: cannot load emergency map\n";
		1821	}
		1822	}
		1823
		1824	($x, $y) = (-1, -1)
		1825	unless (defined $x) && (defined $y);
		1826
		1827	# use -1 or undef as default coordinates, not 0, 0
		1828	($x, $y) = ($map->enter_x, $map->enter_y)
		1829	if $x <=0 && $y <= 0;
		1830
		1831	$map->load;
		1832	$map->load_diag;
		1833
		1834	return unless $self->contr->active;
		1835	$self->activate_recursive;
		1836
		1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1838	$self->enter_map ($map, $x, $y);
		1839	}
		1840
		1841	cf::player->attach (
		1842	on_logout => sub {
		1843	my ($pl) = @_;
		1844
		1845	# abort map switching before logout
		1846	if ($pl->ob->{_link_pos}) {
		1847	cf::sync_job {
		1848	$pl->ob->leave_link
		1849	};
		1850	}
		1851	},
		1852	on_login => sub {
		1853	my ($pl) = @_;
		1854
		1855	# try to abort aborted map switching on player login :)
		1856	# should happen only on crashes
		1857	if ($pl->ob->{_link_pos}) {
		1858	$pl->ob->enter_link;
		1859	(async {
		1860	$pl->ob->reply (undef,
		1861	"There was an internal problem at your last logout, "
		1862	. "the server will try to bring you to your intended destination in a second.",
		1863	cf::NDI_RED);
		1864	# we need this sleep as the login has a concurrent enter_exit running
		1865	# and this sleep increases chances of the player not ending up in scorn
		1866	Coro::Timer::sleep 1;
		1867	$pl->ob->leave_link;
		1868	})->prio (2);
		1869	}
		1870	},
		1871	);
		1872
		1873	=item $player_object->goto ($path, $x, $y)
		1874
		1875	=cut
		1876
		1877	sub cf::object::player::goto {
		1878	my ($self, $path, $x, $y) = @_;
		1879
		1880	$self->enter_link;
		1881
		1882	(async {
		1883	my $map = eval {
		1884	my $map = cf::map::find $path;
		1885	$map = $map->customise_for ($self) if $map;
		1886	$map
		1887	} or
		1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1889
		1890	$self->leave_link ($map, $x, $y);
		1891	})->prio (1);
		1892	}
		1893
		1894	=item $player_object->enter_exit ($exit_object)
		1895
		1896	=cut
		1897
		1898	sub parse_random_map_params {
		1899	my ($spec) = @_;
		1900
		1901	my $rmp = { # defaults
		1902	xsize => (cf::rndm 15, 40),
		1903	ysize => (cf::rndm 15, 40),
		1904	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1905	#layout => string,
		1906	};
		1907
		1908	for (split /\n/, $spec) {
		1909	my ($k, $v) = split /\s+/, $_, 2;
		1910
		1911	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1912	}
		1913
		1914	$rmp
		1915	}
		1916
		1917	sub prepare_random_map {
		1918	my ($exit) = @_;
		1919
		1920	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1921
		1922	# all this does is basically replace the /! path by
		1923	# a new random map path (?random/...) with a seed
		1924	# that depends on the exit object
		1925
		1926	my $rmp = parse_random_map_params $exit->msg;
		1927
		1928	if ($exit->map) {
		1929	$rmp->{region} = $exit->region->name;
		1930	$rmp->{origin_map} = $exit->map->path;
		1931	$rmp->{origin_x} = $exit->x;
		1932	$rmp->{origin_y} = $exit->y;
		1933	}
		1934
		1935	$rmp->{random_seed} ||= $exit->random_seed;
		1936
		1937	my $data = cf::to_json $rmp;
		1938	my $md5 = Digest::MD5::md5_hex $data;
		1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1940
		1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1942	aio_write $fh, 0, (length $data), $data, 0;
		1943	undef $fh;
		1944	aio_rename "$meta~", $meta;
		1945
		1946	$exit->slaying ("?random/$md5");
		1947	$exit->msg (undef);
		1948	}
		1949	}
		1950
		1951	sub cf::object::player::enter_exit {
		1952	my ($self, $exit) = @_;
		1953
		1954	return unless $self->type == cf::PLAYER;
		1955
		1956	if ($exit->slaying eq "/!") {
		1957	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1958	cf::sync_job { prepare_random_map $exit };
		1959	}
		1960
		1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1962	my $hp = $exit->stats->hp;
		1963	my $sp = $exit->stats->sp;
		1964
		1965	$self->enter_link;
		1966
		1967	(async {
		1968	$self->deactivate_recursive; # just to be sure
		1969	unless (eval {
		1970	$self->goto ($slaying, $hp, $sp);
		1971
		1972	1;
		1973	}) {
		1974	$self->message ("Something went wrong deep within the crossfire server. "
		1975	. "I'll try to bring you back to the map you were before. "
		1976	. "Please report this to the dungeon master!",
		1977	cf::NDI_UNIQUE | cf::NDI_RED);
		1978
		1979	warn "ERROR in enter_exit: $@";
		1980	$self->leave_link;
		1981	}
		1982	})->prio (1);
		1983	}
		1984
837	=head3 cf::client	1985	=head3 cf::client
838		1986
839	=over 4	1987	=over 4
840		1988
841	=item $client->send_drawinfo ($text, $flags)	1989	=item $client->send_drawinfo ($text, $flags)
…		…
847		1995
848	sub cf::client::send_drawinfo {	1996	sub cf::client::send_drawinfo {
849	my ($self, $text, $flags) = @_;	1997	my ($self, $text, $flags) = @_;
850		1998
851	utf8::encode $text;	1999	utf8::encode $text;
852	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
853	}	2001	}
854		2002
855		2003
856	=item $success = $client->query ($flags, "text", \&cb)	2004	=item $success = $client->query ($flags, "text", \&cb)
857		2005
…		…
884	on_reply => sub {	2032	on_reply => sub {
885	my ($ns, $msg) = @_;	2033	my ($ns, $msg) = @_;
886		2034
887	# this weird shuffling is so that direct followup queries	2035	# this weird shuffling is so that direct followup queries
888	# get handled first	2036	# get handled first
889	my $queue = delete $ns->{query_queue};	2037	my $queue = delete $ns->{query_queue}
		2038	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		2039
891	(shift @$queue)->[1]->($msg);	2040	(shift @$queue)->[1]->($msg);
		2041	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
892		2042
893	push @{ $ns->{query_queue} }, @$queue;	2043	push @{ $ns->{query_queue} }, @$queue;
894		2044
895	if (@{ $ns->{query_queue} } == @$queue) {	2045	if (@{ $ns->{query_queue} } == @$queue) {
896	if (@$queue) {	2046	if (@$queue) {
…		…
900	}	2050	}
901	}	2051	}
902	},	2052	},
903	);	2053	);
904		2054
905	=item $client->coro (\&cb)	2055	=item $client->async (\&cb)
906		2056
907	Create a new coroutine, running the specified callback. The coroutine will	2057	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	2058	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	2059	or loss of connection).
910		2060
911	=cut	2061	=cut
912		2062
913	sub cf::client::coro {	2063	sub cf::client::async {
914	my ($self, $cb) = @_;	2064	my ($self, $cb) = @_;
915		2065
916	my $coro; $coro = async {	2066	my $coro = &Coro::async ($cb);
917	eval {	2067
918	$cb->();	2068	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	2069	delete $self->{_coro}{$coro+0};
922	};	2070	});
923		2071
924	$self->{_coro}{$coro+0} = $coro;	2072	$self->{_coro}{$coro+0} = $coro;
		2073
		2074	$coro
925	}	2075	}
926		2076
927	cf::client->attach (	2077	cf::client->attach (
928	on_destroy => sub {	2078	on_destroy => sub {
929	my ($ns) = @_;	2079	my ($ns) = @_;
…		…
1057	The parameter C<$family> should best start with the name of the extension	2207	The parameter C<$family> should best start with the name of the extension
1058	using it, it should be unique.	2208	using it, it should be unique.
1059		2209
1060	=over 4	2210	=over 4
1061		2211
1062	=item $hashref = cf::db_get $family
1063
1064	Return a hashref for use by the extension C<$family>, which can be
1065	modified. After modifications, you have to call C<cf::db_dirty> or
1066	C<cf::db_sync>.
1067
1068	=item $value = cf::db_get $family => $key	2212	=item $value = cf::db_get $family => $key
1069		2213
1070	Returns a single value from the database	2214	Returns a single value from the database.
1071
1072	=item cf::db_put $family => $hashref
1073
1074	Stores the given family hashref into the database. Updates are delayed, if
1075	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1076		2215
1077	=item cf::db_put $family => $key => $value	2216	=item cf::db_put $family => $key => $value
1078		2217
1079	Stores the given C<$value> in the family hash. Updates are delayed, if you	2218	Stores the given C<$value> in the family.
1080	want the data to be synced to disk immediately, use C<cf::db_sync>.
1081
1082	=item cf::db_dirty
1083
1084	Marks the database as dirty, to be updated at a later time.
1085
1086	=item cf::db_sync
1087
1088	Immediately write the database to disk I<if it is dirty>.
1089		2219
1090	=cut	2220	=cut
1091		2221
1092	our $DB;	2222	our $DB;
1093		2223
1094	{	2224	sub db_init {
		2225	unless ($DB) {
		2226	$DB = BDB::db_create $DB_ENV;
		2227
		2228	cf::sync_job {
		2229	eval {
		2230	$DB->set_flags (BDB::CHKSUM);
		2231
		2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2234	cf::cleanup "db_open(db): $!" if $!;
		2235	};
		2236	cf::cleanup "db_open(db): $@" if $@;
		2237	};
		2238
1095	my $path = cf::localdir . "/database.pst";	2239	my $path = cf::localdir . "/database.pst";
		2240	if (stat $path) {
		2241	cf::sync_job {
		2242	my $pst = Storable::retrieve $path;
1096		2243
1097	sub db_load() {	2244	cf::db_put (board => data => $pst->{board});
1098	warn "loading database $path\n";#d# remove later	2245	cf::db_put (guildrules => data => $pst->{guildrules});
1099	$DB = stat $path ? Storable::retrieve $path : { };	2246	cf::db_put (rent => balance => $pst->{rent}{balance});
1100	}	2247	BDB::db_env_txn_checkpoint $DB_ENV;
1101		2248
1102	my $pid;	2249	unlink $path;
1103
1104	sub db_save() {
1105	warn "saving database $path\n";#d# remove later
1106	waitpid $pid, 0 if $pid;
1107	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;
1111	cf::_exit 0 if defined $pid;
1112	}	2250	};
1113	}	2251	}
1114
1115	my $dirty;
1116
1117	sub db_sync() {
1118	db_save if $dirty;
1119	undef $dirty;
1120	}
1121
1122	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1123	db_sync;
1124	});	2252	}
		2253	}
1125		2254
1126	sub db_dirty() {
1127	$dirty = 1;
1128	$idle->start;
1129	}
1130
1131	sub db_get($;$) {	2255	sub db_get($$) {
1132	@_ >= 2	2256	my $key = "$_[0]/$_[1]";
1133	? $DB->{$_[0]}{$_[1]}
1134	: ($DB->{$_[0]} ||= { })
1135	}
1136		2257
		2258	cf::sync_job {
		2259	BDB::db_get $DB, undef, $key, my $data;
		2260
		2261	$! ? ()
		2262	: Compress::LZF::sthaw $data
		2263	}
		2264	}
		2265
1137	sub db_put($$;$) {	2266	sub db_put($$$) {
1138	if (@_ >= 3) {	2267	BDB::dbreq_pri 4;
1139	$DB->{$_[0]}{$_[1]} = $_[2];	2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2269	}
		2270
		2271	#############################################################################
		2272	# the server's init and main functions
		2273
		2274	sub load_faces {
		2275	my $path = sprintf "%s/faces", cf::datadir;
		2276
		2277	warn "loading faces from $path\n";
		2278
		2279	my $faces;
		2280	0 < aio_load $path, $faces
		2281	or die "$path: $!";
		2282
		2283	Coro::cede;
		2284	$faces = Storable::thaw $faces;
		2285	Coro::cede;
		2286
		2287	while (my ($face, $info) = each %$faces) {
		2288	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2289	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2290	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2291	Coro::cede;
		2292	}
		2293
		2294	while (my ($face, $info) = each %$faces) {
		2295	next unless $info->{smooth};
		2296	my $idx = cf::face::find $face
		2297	or next;
		2298	if (my $smooth = cf::face::find $info->{smooth}) {
		2299	cf::face::set_smooth $idx, $smooth;
		2300	warn "smooth $idx,$smooth ($face,$info->{smooth})\n";#d#
1140	} else {	2301	} else {
1141	$DB->{$_[0]} = $_[1];	2302	warn "smooth face '$info->{smooth}' not found for face '$face'";
1142	}
1143	db_dirty;
1144	}
1145
1146	cf::global->attach (
1147	prio => 10000,
1148	on_cleanup => sub {
1149	db_sync;
1150	},	2303	}
1151	);	2304	Coro::cede;
1152	}	2305	}
1153		2306
1154	#############################################################################	2307	1
1155	# the server's main()	2308	}
		2309
		2310	sub reload_resources {
		2311	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2312	or die "unable to load regions file\n";#d#
		2313	load_faces
		2314	or die "unable to load faces\n";#d#
		2315	}
		2316
		2317	sub init {
		2318	reload_resources;
		2319	}
1156		2320
1157	sub cfg_load {	2321	sub cfg_load {
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2322	open my $fh, "<:utf8", cf::confdir . "/config"
1159	or return;	2323	or return;
1160		2324
1161	local $/;	2325	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2326	*CFG = YAML::Syck::Load <$fh>;
		2327
		2328	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2329
		2330	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2331	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2332
		2333	if (exists $CFG{mlockall}) {
		2334	eval {
		2335	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2336	and die "WARNING: m(un)lockall failed: $!\n";
		2337	};
		2338	warn $@ if $@;
		2339	}
1163	}	2340	}
1164		2341
1165	sub main {	2342	sub main {
		2343	# we must not ever block the main coroutine
		2344	local $Coro::idle = sub {
		2345	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2346	(async {
		2347	Event::one_event;
		2348	})->prio (Coro::PRIO_MAX);
		2349	};
		2350
1166	cfg_load;	2351	cfg_load;
1167	db_load;	2352	db_init;
1168	load_extensions;	2353	load_extensions;
		2354
		2355	$TICK_WATCHER->start;
1169	Event::loop;	2356	Event::loop;
1170	}	2357	}
1171		2358
1172	#############################################################################	2359	#############################################################################
1173	# initialisation	2360	# initialisation and cleanup
1174		2361
		2362	# install some emergency cleanup handlers
		2363	BEGIN {
		2364	for my $signal (qw(INT HUP TERM)) {
		2365	Event->signal (
		2366	reentrant => 0,
		2367	data => WF_AUTOCANCEL,
		2368	signal => $signal,
		2369	prio => 0,
		2370	cb => sub {
		2371	cf::cleanup "SIG$signal";
		2372	},
		2373	);
		2374	}
		2375	}
		2376
		2377	sub emergency_save() {
		2378	my $freeze_guard = cf::freeze_mainloop;
		2379
		2380	warn "enter emergency perl save\n";
		2381
		2382	cf::sync_job {
		2383	# use a peculiar iteration method to avoid tripping on perl
		2384	# refcount bugs in for. also avoids problems with players
		2385	# and maps saved/destroyed asynchronously.
		2386	warn "begin emergency player save\n";
		2387	for my $login (keys %cf::PLAYER) {
		2388	my $pl = $cf::PLAYER{$login} or next;
		2389	$pl->valid or next;
		2390	$pl->save;
		2391	}
		2392	warn "end emergency player save\n";
		2393
		2394	warn "begin emergency map save\n";
		2395	for my $path (keys %cf::MAP) {
		2396	my $map = $cf::MAP{$path} or next;
		2397	$map->valid or next;
		2398	$map->save;
		2399	}
		2400	warn "end emergency map save\n";
		2401
		2402	warn "begin emergency database checkpoint\n";
		2403	BDB::db_env_txn_checkpoint $DB_ENV;
		2404	warn "end emergency database checkpoint\n";
		2405	};
		2406
		2407	warn "leave emergency perl save\n";
		2408	}
		2409
		2410	sub post_cleanup {
		2411	my ($make_core) = @_;
		2412
		2413	warn Carp::longmess "post_cleanup backtrace"
		2414	if $make_core;
		2415	}
		2416
1175	sub _perl_reload(&) {	2417	sub reload() {
1176	my ($msg) = @_;	2418	# can/must only be called in main
		2419	if ($Coro::current != $Coro::main) {
		2420	warn "can only reload from main coroutine";
		2421	return;
		2422	}
1177		2423
1178	$msg->("reloading...");	2424	warn "reloading...";
1179		2425
1180	eval {	2426	warn "entering sync_job";
1181	# cancel all watchers	2427
		2428	cf::sync_job {
		2429	cf::write_runtime; # external watchdog should not bark
		2430	cf::emergency_save;
		2431	cf::write_runtime; # external watchdog should not bark
		2432
		2433	warn "syncing database to disk";
		2434	BDB::db_env_txn_checkpoint $DB_ENV;
		2435
		2436	# if anything goes wrong in here, we should simply crash as we already saved
		2437
		2438	warn "cancelling all WF_AUTOCANCEL watchers";
1182	for (Event::all_watchers) {	2439	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2440	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2441	}
1185		2442
1186	# unload all extensions	2443	warn "flushing outstanding aio requests";
1187	for (@exts) {	2444	for (;;) {
1188	$msg->("unloading <$_>");	2445	BDB::flush;
1189	unload_extension $_;	2446	IO::AIO::flush;
		2447	Coro::cede;
		2448	last unless IO::AIO::nreqs || BDB::nreqs;
		2449	warn "iterate...";
		2450	}
		2451
		2452	++$RELOAD;
		2453
		2454	warn "cancelling all extension coros";
		2455	$_->cancel for values %EXT_CORO;
		2456	%EXT_CORO = ();
		2457
		2458	warn "removing commands";
		2459	%COMMAND = ();
		2460
		2461	warn "removing ext commands";
		2462	%EXTCMD = ();
		2463
		2464	warn "unloading/nuking all extensions";
		2465	for my $pkg (@EXTS) {
		2466	warn "... unloading $pkg";
		2467
		2468	if (my $cb = $pkg->can ("unload")) {
		2469	eval {
		2470	$cb->($pkg);
		2471	1
		2472	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2473	}
1191		2474
		2475	warn "... nuking $pkg";
		2476	Symbol::delete_package $pkg;
		2477	}
		2478
1192	# unload all modules loaded from $LIBDIR	2479	warn "unloading all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2480	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2481	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2482
1196	$msg->("removing <$k>");	2483	warn "... unloading $k";
1197	delete $INC{$k};	2484	delete $INC{$k};
1198		2485
1199	$k =~ s/\.pm$//;	2486	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2487	$k =~ s/\//::/g;
1201		2488
…		…
1204	}	2491	}
1205		2492
1206	Symbol::delete_package $k;	2493	Symbol::delete_package $k;
1207	}	2494	}
1208		2495
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2496	warn "getting rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2497	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2498	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2499
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2500	warn "unloading cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2501	delete $INC{"cf.pm"};
1221		2502
1222	# don't, removes xs symbols, too,	2503	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2504	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2505	#Symbol::delete_package __PACKAGE__;
1225		2506
1226	# reload cf.pm	2507	warn "unload completed, starting to reload now";
		2508
1227	$msg->("reloading cf.pm");	2509	warn "reloading cf.pm";
1228	require cf;	2510	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2511	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2512
1231	# load config and database again	2513	warn "loading config and database again";
1232	cf::cfg_load;	2514	cf::cfg_load;
1233	cf::db_load;
1234		2515
1235	# load extensions	2516	warn "loading extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2517	cf::load_extensions;
1238		2518
1239	# reattach attachments to objects	2519	warn "reattaching attachments to objects/players";
1240	$msg->("reattach");	2520	_global_reattach; # objects, sockets
1241	_global_reattach;	2521	warn "reattaching attachments to maps";
		2522	reattach $_ for values %MAP;
		2523	warn "reattaching attachments to players";
		2524	reattach $_ for values %PLAYER;
		2525
		2526	warn "loading reloadable resources";
		2527	reload_resources;
		2528
		2529	warn "leaving sync_job";
		2530
		2531	1
		2532	} or do {
		2533	warn $@;
		2534	warn "error while reloading, exiting.";
		2535	exit 1;
1242	};	2536	};
1243	$msg->($@) if $@;
1244		2537
1245	$msg->("reloaded");	2538	warn "reloaded";
1246	};	2539	};
1247		2540
1248	sub perl_reload() {	2541	our $RELOAD_WATCHER; # used only during reload
1249	_perl_reload {
1250	warn $_[0];
1251	print "$_[0]\n";
1252	};
1253	}
1254		2542
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2543	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2544	my ($who, $arg) = @_;
1259		2545
1260	if ($who->flag (FLAG_WIZ)) {	2546	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2547	$who->message ("reloading server.");
1262	warn $_[0];	2548
1263	$who->message ($_[0]);	2549	# doing reload synchronously and two reloads happen back-to-back,
		2550	# coro crashes during coro_state_free->destroy here.
		2551
		2552	$RELOAD_WATCHER ||= Event->timer (
		2553	reentrant => 0,
		2554	after => 0,
		2555	data => WF_AUTOCANCEL,
		2556	cb => sub {
		2557	reload;
		2558	undef $RELOAD_WATCHER;
		2559	},
1264	};	2560	);
1265	}	2561	}
1266	};	2562	};
1267		2563
1268	unshift @INC, $LIBDIR;	2564	unshift @INC, $LIBDIR;
1269		2565
		2566	my $bug_warning = 0;
		2567
1270	$TICK_WATCHER = Event->timer (	2568	$TICK_WATCHER = Event->timer (
		2569	reentrant => 0,
		2570	parked => 1,
1271	prio => 0,	2571	prio => 0,
1272	at => $NEXT_TICK || 1,	2572	at => $NEXT_TICK || $TICK,
1273	data => WF_AUTOCANCEL,	2573	data => WF_AUTOCANCEL,
1274	cb => sub {	2574	cb => sub {
		2575	if ($Coro::current != $Coro::main) {
		2576	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2577	unless ++$bug_warning > 10;
		2578	return;
		2579	}
		2580
		2581	$NOW = Event::time;
		2582
1275	cf::server_tick; # one server iteration	2583	cf::server_tick; # one server iteration
1276		2584	$RUNTIME += $TICK;
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2585	$NEXT_TICK += $TICK;
1279		2586
		2587	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2588	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2589	Coro::async_pool {
		2590	write_runtime
		2591	or warn "ERROR: unable to write runtime file: $!";
		2592	};
		2593	}
		2594
		2595	$WAIT_FOR_TICK->broadcast;
		2596	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2597
		2598	# my $AFTER = Event::time;
		2599	# warn $AFTER - $NOW;#d#
		2600
1280	# if we are delayed by four ticks or more, skip them all	2601	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2602	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1282		2603
1283	$TICK_WATCHER->at ($NEXT_TICK);	2604	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2605	$TICK_WATCHER->start;
1285	},	2606	},
1286	);	2607	);
1287		2608
		2609	{
		2610	BDB::max_poll_time $TICK * 0.1;
		2611	$BDB_POLL_WATCHER = Event->io (
		2612	reentrant => 0,
		2613	fd => BDB::poll_fileno,
		2614	poll => 'r',
		2615	prio => 0,
		2616	data => WF_AUTOCANCEL,
		2617	cb => \&BDB::poll_cb,
		2618	);
		2619	BDB::min_parallel 8;
		2620
		2621	BDB::set_sync_prepare {
		2622	my $status;
		2623	my $current = $Coro::current;
		2624	(
		2625	sub {
		2626	$status = $!;
		2627	$current->ready; undef $current;
		2628	},
		2629	sub {
		2630	Coro::schedule while defined $current;
		2631	$! = $status;
		2632	},
		2633	)
		2634	};
		2635
		2636	unless ($DB_ENV) {
		2637	$DB_ENV = BDB::db_env_create;
		2638
		2639	cf::sync_job {
		2640	eval {
		2641	BDB::db_env_open
		2642	$DB_ENV,
		2643	$BDB_ENV_DIR,
		2644	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2645	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2646	0666;
		2647
		2648	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2649
		2650	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2651	$DB_ENV->set_lk_detect;
		2652	};
		2653
		2654	cf::cleanup "db_env_open(db): $@" if $@;
		2655	};
		2656	}
		2657	}
		2658
		2659	{
		2660	IO::AIO::min_parallel 8;
		2661
		2662	undef $Coro::AIO::WATCHER;
1288	IO::AIO::max_poll_time $TICK * 0.2;	2663	IO::AIO::max_poll_time $TICK * 0.1;
1289		2664	$AIO_POLL_WATCHER = Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	2665	reentrant => 0,
1291	poll => 'r',
1292	prio => 5,
1293	data => WF_AUTOCANCEL,	2666	data => WF_AUTOCANCEL,
		2667	fd => IO::AIO::poll_fileno,
		2668	poll => 'r',
		2669	prio => 6,
1294	cb => \&IO::AIO::poll_cb);	2670	cb => \&IO::AIO::poll_cb,
		2671	);
		2672	}
		2673
		2674	END { cf::emergency_save }
1295		2675
1296	1	2676	1
1297		2677

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