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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.100 by root, Mon Dec 25 11:25:49 2006 UTC vs.
Revision 1.248 by root, Tue Apr 17 18:40:32 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 3.61 ();
		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;
		21	use Coro::Storable;
18		22
19	use IO::AIO 2.3;	23	use BDB ();
		24	use Data::Dumper;
		25	use Digest::MD5;
		26	use Fcntl;
20	use YAML::Syck ();	27	use YAML::Syck ();
		28	use IO::AIO 2.32 ();
21	use Time::HiRes;	29	use Time::HiRes;
		30	use Compress::LZF;
22		31
		32	# configure various modules to our taste
		33	#
		34	$Storable::canonical = 1; # reduce rsync transfers
		35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		37
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	$Event::Eval = 1; # no idea why this is required, but it is
24		39
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	41	$YAML::Syck::ImplicitUnicode = 1;
27		42
28	$Coro::main->prio (Coro::PRIO_MIN);	43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		44
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		46
32	our %COMMAND = ();	47	our %COMMAND = ();
33	our %COMMAND_TIME = ();	48	our %COMMAND_TIME = ();
		49
		50	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	51	our %EXTCMD = ();
		52	our %EXT_CORO = (); # coroutines bound to extensions
		53	our %EXT_MAP = (); # pluggable maps
35		54
		55	our $RELOAD; # number of reloads so far
36	our @EVENT;	56	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	57	our $LIBDIR = datadir . "/ext";
38		58
39	our $TICK = MAX_TIME * 1e-6;	59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	60	our $TICK_WATCHER;
		61	our $AIO_POLL_WATCHER;
		62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	63	our $NEXT_TICK;
		64	our $NOW;
		65	our $USE_FSYNC = 1; # use fsync to write maps - default off
		66
		67	our $BDB_POLL_WATCHER;
		68	our $DB_ENV;
42		69
43	our %CFG;	70	our %CFG;
44		71
45	our $UPTIME; $UPTIME ||= time;	72	our $UPTIME; $UPTIME ||= time;
		73	our $RUNTIME;
		74
		75	our %PLAYER; # all users
		76	our %MAP; # all maps
		77	our $LINK_MAP; # the special {link} map, which is always available
		78	our $RANDOM_MAPS = cf::localdir . "/random";
		79	our $BDB_ENV_DIR = cf::localdir . "/db";
		80
		81	# used to convert map paths into valid unix filenames by replacing / by ∕
		82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		83
		84	binmode STDOUT;
		85	binmode STDERR;
		86
		87	# read virtual server time, if available
		88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		89	open my $fh, "<", cf::localdir . "/runtime"
		90	or die "unable to read runtime file: $!";
		91	$RUNTIME = <$fh> + 0.;
		92	}
		93
		94	mkdir cf::localdir;
		95	mkdir cf::localdir . "/" . cf::playerdir;
		96	mkdir cf::localdir . "/" . cf::tmpdir;
		97	mkdir cf::localdir . "/" . cf::uniquedir;
		98	mkdir $RANDOM_MAPS;
		99	mkdir $BDB_ENV_DIR;
		100
		101	our $EMERGENCY_POSITION;
		102
		103	sub cf::map::normalise;
46		104
47	#############################################################################	105	#############################################################################
48		106
49	=head2 GLOBAL VARIABLES	107	=head2 GLOBAL VARIABLES
50		108
51	=over 4	109	=over 4
52		110
53	=item $cf::UPTIME	111	=item $cf::UPTIME
54		112
55	The timestamp of the server start (so not actually an uptime).	113	The timestamp of the server start (so not actually an uptime).
		114
		115	=item $cf::RUNTIME
		116
		117	The time this server has run, starts at 0 and is increased by $cf::TICK on
		118	every server tick.
56		119
57	=item $cf::LIBDIR	120	=item $cf::LIBDIR
58		121
59	The perl library directory, where extensions and cf-specific modules can	122	The perl library directory, where extensions and cf-specific modules can
60	be found. It will be added to C<@INC> automatically.	123	be found. It will be added to C<@INC> automatically.
61		124
		125	=item $cf::NOW
		126
		127	The time of the last (current) server tick.
		128
62	=item $cf::TICK	129	=item $cf::TICK
63		130
64	The interval between server ticks, in seconds.	131	The interval between server ticks, in seconds.
65		132
66	=item %cf::CFG	133	=item %cf::CFG
67		134
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	135	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	136	from wherever your confdir points to.
		137
		138	=item cf::wait_for_tick, cf::wait_for_tick_begin
		139
		140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		141	returns directly I<after> the tick processing (and consequently, can only wake one process
		142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
70		143
71	=back	144	=back
72		145
73	=cut	146	=cut
74		147
75	BEGIN {	148	BEGIN {
76	*CORE::GLOBAL::warn = sub {	149	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	150	my $msg = join "", @_;
		151	utf8::encode $msg;
		152
78	$msg .= "\n"	153	$msg .= "\n"
79	unless $msg =~ /\n$/;	154	unless $msg =~ /\n$/;
80		155
81	print STDERR "cfperl: $msg";
82	LOG llevError, "cfperl: $msg";	156	LOG llevError, $msg;
83	};	157	};
84	}	158	}
85		159
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
105		179
106	$Event::DIED = sub {	180	$Event::DIED = sub {
107	warn "error in event callback: @_";	181	warn "error in event callback: @_";
108	};	182	};
109		183
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	184	=head2 UTILITY FUNCTIONS
115		185
116	=over 4	186	=over 4
117		187
118	=cut	188	=item dumpval $ref
119		189
		190	=cut
		191
		192	sub dumpval {
		193	eval {
		194	local $SIG{__DIE__};
		195	my $d;
		196	if (1) {
		197	$d = new Data::Dumper([$_[0]], ["*var"]);
		198	$d->Terse(1);
		199	$d->Indent(2);
		200	$d->Quotekeys(0);
		201	$d->Useqq(1);
		202	#$d->Bless(...);
		203	$d->Seen($_[1]) if @_ > 1;
		204	$d = $d->Dump();
		205	}
		206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		207	$d
		208	} || "[unable to dump $_[0]: '$@']";
		209	}
		210
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
121		212
122	=item $ref = cf::from_json $json	213	=item $ref = cf::from_json $json
123		214
124	Converts a JSON string into the corresponding perl data structure.	215	Converts a JSON string into the corresponding perl data structure.
125		216
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	217	=item $json = cf::to_json $ref
134		218
135	Converts a perl data structure into its JSON representation.	219	Converts a perl data structure into its JSON representation.
136		220
137	=cut	221	=item cf::lock_wait $string
138		222
139	sub to_json($) {	223	Wait until the given lock is available. See cf::lock_acquire.
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224
141	JSON::Syck::Dump $_[0]	225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	};
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $guard = cf::lock_acquire "write_runtime";
		350
		351	my $runtime = cf::localdir . "/runtime";
		352
		353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		354	or return;
		355
		356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
		360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		361	and return;
		362
		363	# always fsync - this file is important
		364	aio_fsync $fh
		365	and return;
		366
		367	close $fh
		368	or return;
		369
		370	aio_rename "$runtime~", $runtime
		371	and return;
		372
		373	1
		374	}
		375
		376	=item cf::datalog type => key => value, ...
		377
		378	Log a datalog packet of the given type with the given key-value pairs.
		379
		380	=cut
		381
		382	sub datalog($@) {
		383	my ($type, %kv) = @_;
		384	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	385	}
143		386
144	=back	387	=back
145		388
146	=cut	389	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	521	our @CB_MAP = ();
279		522
280	my %attachment;	523	my %attachment;
281		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
282	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
284		533
285	use sort 'stable';	534	use sort 'stable';
286		535
…		…
454	=cut	703	=cut
455		704
456	#############################################################################	705	#############################################################################
457	# object support	706	# object support
458		707
		708	sub reattach {
		709	# basically do the same as instantiate, without calling instantiate
		710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		713
		714	my $registry = $obj->registry;
		715
		716	@$registry = ();
		717
		718	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		719
		720	for my $name (keys %{ $obj->{_attachment} || {} }) {
		721	if (my $attach = $attachment{$name}) {
		722	for (@$attach) {
		723	my ($klass, @attach) = @$_;
		724	_attach $registry, $klass, @attach;
		725	}
		726	} else {
		727	warn "object uses attachment '$name' that is not available, postponing.\n";
		728	}
		729	}
		730	}
		731
459	cf::attachable->attach (	732	cf::attachable->attach (
460	prio => -1000000,	733	prio => -1000000,
461	on_instantiate => sub {	734	on_instantiate => sub {
462	my ($obj, $data) = @_;	735	my ($obj, $data) = @_;
463		736
…		…
467	my ($name, $args) = @$_;	740	my ($name, $args) = @$_;
468		741
469	$obj->attach ($name, %{$args || {} });	742	$obj->attach ($name, %{$args || {} });
470	}	743	}
471	},	744	},
472	on_reattach => sub {	745	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 {	746	on_clone => sub {
493	my ($src, $dst) = @_;	747	my ($src, $dst) = @_;
494		748
495	@{$dst->registry} = @{$src->registry};	749	@{$dst->registry} = @{$src->registry};
496		750
…		…
502	);	756	);
503		757
504	sub object_freezer_save {	758	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	759	my ($filename, $rdata, $objs) = @_;
506		760
		761	sync_job {
507	if (length $$rdata) {	762	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	763	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	764	$filename, length $$rdata, scalar @$objs;
510		765
511	if (open my $fh, ">:raw", "$filename~") {	766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	767	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		769	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	770	close $fh;
		771
		772	if (@$objs) {
		773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		774	chmod SAVE_MODE, $fh;
		775	my $data = Storable::nfreeze { version => 1, objs => $objs };
		776	aio_write $fh, 0, (length $data), $data, 0;
		777	aio_fsync $fh if $cf::USE_FSYNC;
		778	close $fh;
520	rename "$filename.pst~", "$filename.pst";	779	aio_rename "$filename.pst~", "$filename.pst";
		780	}
		781	} else {
		782	aio_unlink "$filename.pst";
		783	}
		784
		785	aio_rename "$filename~", $filename;
521	} else {	786	} else {
522	unlink "$filename.pst";	787	warn "FATAL: $filename~: $!\n";
523	}	788	}
524
525	rename "$filename~", $filename;
526	} else {	789	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	790	aio_unlink $filename;
531	unlink "$filename.pst";	791	aio_unlink "$filename.pst";
		792	}
532	}	793	}
533	}	794	}
534		795
535	sub object_freezer_as_string {	796	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	797	my ($rdata, $objs) = @_;
…		…
541	}	802	}
542		803
543	sub object_thawer_load {	804	sub object_thawer_load {
544	my ($filename) = @_;	805	my ($filename) = @_;
545		806
546	local $/;	807	my ($data, $av);
547		808
548	my $av;	809	(aio_load $filename, $data) >= 0
		810	or return;
549		811
550	#TODO: use sysread etc.	812	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	813	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	814	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	815	$av = eval { (Storable::thaw $av)->{objs} };
555	}	816	}
		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
556	return ($data, $av);	820	return ($data, $av);
557	}
558
559	()
560	}	821	}
561		822
562	#############################################################################	823	#############################################################################
563	# command handling &c	824	# command handling &c
564		825
…		…
588	=cut	849	=cut
589		850
590	sub register_extcmd {	851	sub register_extcmd {
591	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
592		853
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
597	}	855	}
598		856
599	cf::player->attach (	857	cf::player->attach (
600	on_command => sub {	858	on_command => sub {
601	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
614		872
615	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
616		874
617	if (ref $msg) {	875	if (ref $msg) {
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
620	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
621	}	879	}
622	}	880	}
623	} else {	881	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
626		884
627	cf::override;	885	cf::override;
628	},	886	},
629	);	887	);
630		888
631	sub register {
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	889	sub load_extension {
638	my ($path) = @_;	890	my ($path) = @_;
639		891
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
641	my $base = $1;	893	my $base = $1;
642	my $pkg = $1;	894	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
645		897
646	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
647		899
648	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
649	or die "$path: $!";	901	or die "$path: $!";
650		902
651	my $source =	903	my $source =
652	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
655	. "\n};\n1";	907	. "\n};\n1";
656		908
657	eval $source	909	unless (eval $source) {
658	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
659	: "extension disabled.\n";	911	: "extension disabled.\n";
660		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
661	push @exts, $pkg;	913	warn $@;
662	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
663		915	exit 1;
664	# no strict 'refs';	916	}
665	# @{"$pkg\::ISA"} = ext::;	917	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	# }	918	}
680		919
681	# remove commands	920	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	}	921	}
706		922
707	sub load_extensions {	923	sub load_extensions {
708	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	925	next unless -r $ext;
…		…
713	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
714	}	930	}
715	}	931	}
716		932
717	#############################################################################	933	#############################################################################
718	# load/save/clean perl data associated with a map
719		934
720	*cf::mapsupport::on_clean = sub {	935	=head2 CORE EXTENSIONS
		936
		937	Functions and methods that extend core crossfire objects.
		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
		945	=head3 cf::player
		946
		947	=over 4
		948
		949	=item cf::player::find $login
		950
		951	Returns the given player object, loading it if necessary (might block).
		952
		953	=cut
		954
		955	sub playerdir($) {
		956	cf::localdir
		957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/playerdata"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	# rename old playerfiles to new ones
		990	#TODO: remove when no longer required
		991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		993	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		994	aio_unlink +(playerdir $login) . "/$login.pl";
		995
		996	my $pl = load_pl path $login
		997	or return;
		998	$cf::PLAYER{$login} = $pl
		999	}
		1000	}
		1001	}
		1002
		1003	sub save($) {
		1004	my ($pl) = @_;
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	my $path = path $pl;
		1009	my $guard = cf::lock_acquire "user_save:$path";
		1010
		1011	return if $pl->{deny_save};
		1012
		1013	aio_mkdir playerdir $pl, 0770;
		1014	$pl->{last_save} = $cf::RUNTIME;
		1015
		1016	$pl->save_pl ($path);
		1017	Coro::cede;
		1018	}
		1019
		1020	sub new($) {
		1021	my ($login) = @_;
		1022
		1023	my $self = create;
		1024
		1025	$self->ob->name ($login);
		1026	$self->{deny_save} = 1;
		1027
		1028	$cf::PLAYER{$login} = $self;
		1029
		1030	$self
		1031	}
		1032
		1033	=item $pl->quit_character
		1034
		1035	Nukes the player without looking back. If logged in, the connection will
		1036	be destroyed. May block for a long time.
		1037
		1038	=cut
		1039
		1040	sub quit_character {
		1041	my ($pl) = @_;
		1042
		1043	my $name = $pl->ob->name;
		1044
		1045	$pl->{deny_save} = 1;
		1046	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1047
		1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1049	$pl->deactivate;
		1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1051	$pl->ns->destroy if $pl->ns;
		1052
		1053	my $path = playerdir $pl;
		1054	my $temp = "$path~$cf::RUNTIME~deleting~";
		1055	aio_rename $path, $temp;
		1056	delete $cf::PLAYER{$pl->ob->name};
		1057	$pl->destroy;
		1058
		1059	my $prefix = qr<^~\Q$name\E/>;
		1060
		1061	# nuke player maps
		1062	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1063
		1064	IO::AIO::aio_rmtree $temp;
		1065	}
		1066
		1067	=item $pl->kick
		1068
		1069	Kicks a player out of the game. This destroys the connection.
		1070
		1071	=cut
		1072
		1073	sub kick {
		1074	my ($pl, $kicker) = @_;
		1075
		1076	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1077	$pl->killer ("kicked");
		1078	$pl->ns->destroy;
		1079	}
		1080
		1081	=item cf::player::list_logins
		1082
		1083	Returns am arrayref of all valid playernames in the system, can take a
		1084	while and may block, so not sync_job-capable, ever.
		1085
		1086	=cut
		1087
		1088	sub list_logins {
		1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1090	or return [];
		1091
		1092	my @logins;
		1093
		1094	for my $login (@$dirs) {
		1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1096	aio_read $fh, 0, 512, my $buf, 0 or next;
		1097	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1098
		1099	utf8::decode $login;
		1100	push @logins, $login;
		1101	}
		1102
		1103	\@logins
		1104	}
		1105
		1106	=item $player->maps
		1107
		1108	Returns an arrayref of map paths that are private for this
		1109	player. May block.
		1110
		1111	=cut
		1112
		1113	sub maps($) {
		1114	my ($pl) = @_;
		1115
		1116	$pl = ref $pl ? $pl->ob->name : $pl;
		1117
		1118	my $files = aio_readdir playerdir $pl
		1119	or return;
		1120
		1121	my @paths;
		1122
		1123	for (@$files) {
		1124	utf8::decode $_;
		1125	next if /\.(?:pl|pst)$/;
		1126	next unless /^$PATH_SEP/o;
		1127
		1128	push @paths, cf::map::normalise "~$pl/$_";
		1129	}
		1130
		1131	\@paths
		1132	}
		1133
		1134	=item $player->ext_reply ($msgid, %msg)
		1135
		1136	Sends an ext reply to the player.
		1137
		1138	=cut
		1139
		1140	sub ext_reply($$%) {
		1141	my ($self, $id, %msg) = @_;
		1142
		1143	$msg{msgid} = $id;
		1144
		1145	$self->send ("ext " . cf::to_json \%msg);
		1146	}
		1147
		1148	=item $player->ext_event ($type, %msg)
		1149
		1150	Sends an ext event to the client.
		1151
		1152	=cut
		1153
		1154	sub ext_event($$%) {
		1155	my ($self, $type, %msg) = @_;
		1156
		1157	$self->ns->ext_event ($type, %msg);
		1158	}
		1159
		1160	=head3 cf::region
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::region;
		1167
		1168	=item cf::region::find_by_path $path
		1169
		1170	Tries to decuce the probable region for a map knowing only its path.
		1171
		1172	=cut
		1173
		1174	sub find_by_path($) {
		1175	my ($path) = @_;
		1176
		1177	my ($match, $specificity);
		1178
		1179	for my $region (list) {
		1180	if ($region->match && $path =~ $region->match) {
		1181	($match, $specificity) = ($region, $region->specificity)
		1182	if $region->specificity > $specificity;
		1183	}
		1184	}
		1185
		1186	$match
		1187	}
		1188
		1189	=back
		1190
		1191	=head3 cf::map
		1192
		1193	=over 4
		1194
		1195	=cut
		1196
		1197	package cf::map;
		1198
		1199	use Fcntl;
		1200	use Coro::AIO;
		1201
		1202	use overload
		1203	'""' => \&as_string,
		1204	fallback => 1;
		1205
		1206	our $MAX_RESET = 3600;
		1207	our $DEFAULT_RESET = 3000;
		1208
		1209	sub generate_random_map {
		1210	my ($self, $rmp) = @_;
		1211	# mit "rum" bekleckern, nicht
		1212	$self->_create_random_map (
		1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1216	$rmp->{exit_on_final_map},
		1217	$rmp->{xsize}, $rmp->{ysize},
		1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1220	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1221	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1222	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1223	(cf::region::find $rmp->{region}), $rmp->{custom}
		1224	)
		1225	}
		1226
		1227	=item cf::map->register ($regex, $prio)
		1228
		1229	Register a handler for the map path matching the given regex at the
		1230	givne priority (higher is better, built-in handlers have priority 0, the
		1231	default).
		1232
		1233	=cut
		1234
		1235	sub register {
		1236	my (undef, $regex, $prio) = @_;
		1237	my $pkg = caller;
		1238
		1239	no strict;
		1240	push @{"$pkg\::ISA"}, __PACKAGE__;
		1241
		1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1243	}
		1244
		1245	# also paths starting with '/'
		1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1247
		1248	sub thawer_merge {
		1249	my ($self, $merge) = @_;
		1250
		1251	# we have to keep some variables in memory intact
		1252	local $self->{path};
		1253	local $self->{load_path};
		1254	local $self->{deny_save};
		1255	local $self->{deny_reset};
		1256
		1257	$self->SUPER::thawer_merge ($merge);
		1258	}
		1259
		1260	sub normalise {
		1261	my ($path, $base) = @_;
		1262
		1263	$path = "$path"; # make sure its a string
		1264
		1265	$path =~ s/\.map$//;
		1266
		1267	# map plan:
		1268	#
		1269	# /! non-realised random map exit (special hack!)
		1270	# {... are special paths that are not being touched
		1271	# ?xxx/... are special absolute paths
		1272	# ?random/... random maps
		1273	# /... normal maps
		1274	# ~user/... per-player map of a specific user
		1275
		1276	$path =~ s/$PATH_SEP/\//go;
		1277
		1278	# treat it as relative path if it starts with
		1279	# something that looks reasonable
		1280	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1281	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1282
		1283	$base =~ s{[^/]+/?$}{};
		1284	$path = "$base/$path";
		1285	}
		1286
		1287	for ($path) {
		1288	redo if s{//}{/};
		1289	redo if s{/\.?/}{/};
		1290	redo if s{/[^/]+/\.\./}{/};
		1291	}
		1292
		1293	$path
		1294	}
		1295
		1296	sub new_from_path {
		1297	my (undef, $path, $base) = @_;
		1298
		1299	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1300
		1301	$path = normalise $path, $base;
		1302
		1303	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1304	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1305	my $self = bless cf::map::new, $pkg;
		1306	$self->{path} = $path; $self->path ($path);
		1307	$self->init; # pass $1 etc.
		1308	return $self;
		1309	}
		1310	}
		1311
		1312	Carp::carp "unable to resolve path '$path' (base '$base').";
		1313	()
		1314	}
		1315
		1316	sub init {
		1317	my ($self) = @_;
		1318
		1319	$self
		1320	}
		1321
		1322	sub as_string {
		1323	my ($self) = @_;
		1324
		1325	"$self->{path}"
		1326	}
		1327
		1328	# the displayed name, this is a one way mapping
		1329	sub visible_name {
		1330	&as_string
		1331	}
		1332
		1333	# the original (read-only) location
		1334	sub load_path {
		1335	my ($self) = @_;
		1336
		1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1338	}
		1339
		1340	# the temporary/swap location
		1341	sub save_path {
		1342	my ($self) = @_;
		1343
		1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1346	}
		1347
		1348	# the unique path, undef == no special unique path
		1349	sub uniq_path {
		1350	my ($self) = @_;
		1351
		1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1354	}
		1355
		1356	# and all this just because we cannot iterate over
		1357	# all maps in C++...
		1358	sub change_all_map_light {
		1359	my ($change) = @_;
		1360
		1361	$_->change_map_light ($change)
		1362	for grep $_->outdoor, values %cf::MAP;
		1363	}
		1364
		1365	sub unlink_save {
		1366	my ($self) = @_;
		1367
		1368	utf8::encode (my $save = $self->save_path);
		1369	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1370	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1371	}
		1372
		1373	sub load_header_from($) {
		1374	my ($self, $path) = @_;
		1375
		1376	utf8::encode $path;
		1377	#aio_open $path, O_RDONLY, 0
		1378	# or return;
		1379
		1380	$self->_load_header ($path)
		1381	or return;
		1382
		1383	$self->{load_path} = $path;
		1384
		1385	1
		1386	}
		1387
		1388	sub load_header_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->load_header_from ($self->load_path)
		1392	}
		1393
		1394	sub load_header_temp {
		1395	my ($self) = @_;
		1396
		1397	$self->load_header_from ($self->save_path)
		1398	}
		1399
		1400	sub prepare_temp {
		1401	my ($self) = @_;
		1402
		1403	$self->last_access ((delete $self->{last_access})
		1404	|| $cf::RUNTIME); #d#
		1405	# safety
		1406	$self->{instantiate_time} = $cf::RUNTIME
		1407	if $self->{instantiate_time} > $cf::RUNTIME;
		1408	}
		1409
		1410	sub prepare_orig {
		1411	my ($self) = @_;
		1412
		1413	$self->{load_original} = 1;
		1414	$self->{instantiate_time} = $cf::RUNTIME;
		1415	$self->last_access ($cf::RUNTIME);
		1416	$self->instantiate;
		1417	}
		1418
		1419	sub load_header {
		1420	my ($self) = @_;
		1421
		1422	if ($self->load_header_temp) {
		1423	$self->prepare_temp;
		1424	} else {
		1425	$self->load_header_orig
		1426	or return;
		1427	$self->prepare_orig;
		1428	}
		1429
		1430	$self->default_region (cf::region::find_by_path $self->{path})
		1431	unless $self->default_region;
		1432
		1433	1
		1434	}
		1435
		1436	sub find;
		1437	sub find {
		1438	my ($path, $origin) = @_;
		1439
		1440	$path = normalise $path, $origin && $origin->path;
		1441
		1442	cf::lock_wait "map_find:$path";
		1443
		1444	$cf::MAP{$path} || do {
		1445	my $guard = cf::lock_acquire "map_find:$path";
		1446	my $map = new_from_path cf::map $path
		1447	or return;
		1448
		1449	$map->{last_save} = $cf::RUNTIME;
		1450
		1451	$map->load_header
		1452	or return;
		1453
		1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1455	# doing this can freeze the server in a sync job, obviously
		1456	#$cf::WAIT_FOR_TICK->wait;
		1457	$map->reset;
		1458	undef $guard;
		1459	return find $path;
		1460	}
		1461
		1462	$cf::MAP{$path} = $map
		1463	}
		1464	}
		1465
		1466	sub pre_load { }
		1467	sub post_load { }
		1468
		1469	sub load {
		1470	my ($self) = @_;
		1471
		1472	local $self->{deny_reset} = 1; # loading can take a long time
		1473
		1474	my $path = $self->{path};
		1475	my $guard = cf::lock_acquire "map_load:$path";
		1476
		1477	return if $self->in_memory != cf::MAP_SWAPPED;
		1478
		1479	$self->in_memory (cf::MAP_LOADING);
		1480
		1481	$self->alloc;
		1482
		1483	$self->pre_load;
		1484	Coro::cede;
		1485
		1486	$self->_load_objects ($self->{load_path}, 1)
		1487	or return;
		1488
		1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1490	if delete $self->{load_original};
		1491
		1492	if (my $uniq = $self->uniq_path) {
		1493	utf8::encode $uniq;
		1494	if (aio_open $uniq, O_RDONLY, 0) {
		1495	$self->clear_unique_items;
		1496	$self->_load_objects ($uniq, 0);
		1497	}
		1498	}
		1499
		1500	Coro::cede;
		1501	# now do the right thing for maps
		1502	$self->link_multipart_objects;
		1503	Coro::cede;
		1504
		1505	unless ($self->{deny_activate}) {
		1506	$self->decay_objects;
		1507	$self->fix_auto_apply;
		1508	$self->update_buttons;
		1509	Coro::cede;
		1510	$self->set_darkness_map;
		1511	$self->difficulty ($self->estimate_difficulty)
		1512	unless $self->difficulty;
		1513	Coro::cede;
		1514	$self->activate;
		1515	Coro::cede;
		1516	}
		1517
		1518	$self->post_load;
		1519	Coro::cede;
		1520
		1521	$self->in_memory (cf::MAP_IN_MEMORY);
		1522	}
		1523
		1524	sub customise_for {
		1525	my ($self, $ob) = @_;
		1526
		1527	return find "~" . $ob->name . "/" . $self->{path}
		1528	if $self->per_player;
		1529
		1530	$self
		1531	}
		1532
		1533	# find and load all maps in the 3x3 area around a map
		1534	sub load_diag {
721	my ($map) = @_;	1535	my ($map) = @_;
722		1536
723	my $path = $map->tmpname;	1537	my @diag; # diagonal neighbours
724	defined $path or return;
725		1538
726	unlink "$path.pst";	1539	for (0 .. 3) {
727	};	1540	my $neigh = $map->tile_path ($_)
		1541	or next;
		1542	$neigh = find $neigh, $map
		1543	or next;
		1544	$neigh->load;
728		1545
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1548	}
730		1549
731	#############################################################################	1550	for (@diag) {
732	# load/save perl data associated with player->ob objects	1551	my $neigh = find @$_
733		1552	or next;
734	sub all_objects(@) {	1553	$neigh->load;
735	@_, map all_objects ($_->inv), @_	1554	}
736	}	1555	}
737		1556
738	# TODO: compatibility cruft, remove when no longer needed	1557	sub find_sync {
739	cf::player->attach (	1558	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1559
743	for my $o (all_objects $pl->ob) {	1560	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1561	}
745	$o->set_ob_key_value ("_perl_data");
746		1562
747	%$o = %{ Storable::thaw pack "H*", $value };	1563	sub do_load_sync {
		1564	my ($map) = @_;
		1565
		1566	cf::sync_job { $map->load };
		1567	}
		1568
		1569	our %MAP_PREFETCH;
		1570	our $MAP_PREFETCHER = undef;
		1571
		1572	sub find_async {
		1573	my ($path, $origin) = @_;
		1574
		1575	$path = normalise $path, $origin && $origin->{path};
		1576
		1577	if (my $map = $cf::MAP{$path}) {
		1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1579	}
		1580
		1581	undef $MAP_PREFETCH{$path};
		1582	$MAP_PREFETCHER ||= cf::async {
		1583	while (%MAP_PREFETCH) {
		1584	for my $path (keys %MAP_PREFETCH) {
		1585	my $map = find $path
		1586	or next;
		1587	$map->load;
		1588
		1589	delete $MAP_PREFETCH{$path};
748	}	1590	}
749	}	1591	}
		1592	undef $MAP_PREFETCHER;
		1593	};
		1594	$MAP_PREFETCHER->prio (6);
		1595
		1596	()
		1597	}
		1598
		1599	sub save {
		1600	my ($self) = @_;
		1601
		1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1603
		1604	$self->{last_save} = $cf::RUNTIME;
		1605
		1606	return unless $self->dirty;
		1607
		1608	my $save = $self->save_path; utf8::encode $save;
		1609	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1610
		1611	$self->{load_path} = $save;
		1612
		1613	return if $self->{deny_save};
		1614
		1615	local $self->{last_access} = $self->last_access;#d#
		1616
		1617	cf::async {
		1618	$_->contr->save for $self->players;
		1619	};
		1620
		1621	if ($uniq) {
		1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1624	} else {
		1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	1626	}
751	);	1627	}
752		1628
753	#############################################################################	1629	sub swap_out {
		1630	my ($self) = @_;
754		1631
755	=head2 CORE EXTENSIONS	1632	# save first because save cedes
		1633	$self->save;
756		1634
757	Functions and methods that extend core crossfire objects.	1635	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		1636
759	=head3 cf::player	1637	return if $self->players;
		1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1639	return if $self->{deny_save};
		1640
		1641	$self->clear;
		1642	$self->in_memory (cf::MAP_SWAPPED);
		1643	}
		1644
		1645	sub reset_at {
		1646	my ($self) = @_;
		1647
		1648	# TODO: safety, remove and allow resettable per-player maps
		1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1650	return 1e99 if $self->{deny_reset};
		1651
		1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1654
		1655	$time + $to
		1656	}
		1657
		1658	sub should_reset {
		1659	my ($self) = @_;
		1660
		1661	$self->reset_at <= $cf::RUNTIME
		1662	}
		1663
		1664	sub reset {
		1665	my ($self) = @_;
		1666
		1667	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1668
		1669	return if $self->players;
		1670	return if $self->isa ("ext::map_per_player");#d#
		1671
		1672	warn "resetting map ", $self->path;#d#
		1673
		1674	$self->in_memory (cf::MAP_SWAPPED);
		1675
		1676	# need to save uniques path
		1677	unless ($self->{deny_save}) {
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
		1680	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1681	if $uniq;
		1682	}
		1683
		1684	delete $cf::MAP{$self->path};
		1685
		1686	$self->clear;
		1687
		1688	$_->clear_links_to ($self) for values %cf::MAP;
		1689
		1690	$self->unlink_save;
		1691	$self->destroy;
		1692	}
		1693
		1694	my $nuke_counter = "aaaa";
		1695
		1696	sub nuke {
		1697	my ($self) = @_;
		1698
		1699	delete $cf::MAP{$self->path};
		1700
		1701	$self->unlink_save;
		1702
		1703	bless $self, "cf::map";
		1704	delete $self->{deny_reset};
		1705	$self->{deny_save} = 1;
		1706	$self->reset_timeout (1);
		1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1708
		1709	$cf::MAP{$self->path} = $self;
		1710
		1711	$self->reset; # polite request, might not happen
		1712	}
		1713
		1714	=item cf::map::unique_maps
		1715
		1716	Returns an arrayref of paths of all shared maps that have
		1717	instantiated unique items. May block.
		1718
		1719	=cut
		1720
		1721	sub unique_maps() {
		1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1723	or return;
		1724
		1725	my @paths;
		1726
		1727	for (@$files) {
		1728	utf8::decode $_;
		1729	next if /\.pst$/;
		1730	next unless /^$PATH_SEP/o;
		1731
		1732	push @paths, cf::map::normalise $_;
		1733	}
		1734
		1735	\@paths
		1736	}
		1737
		1738	package cf;
		1739
		1740	=back
		1741
		1742	=head3 cf::object
		1743
		1744	=cut
		1745
		1746	package cf::object;
760		1747
761	=over 4	1748	=over 4
762		1749
763	=item cf::player::exists $login	1750	=item $ob->inv_recursive
764		1751
765	Returns true when the given account exists.	1752	Returns the inventory of the object _and_ their inventories, recursively.
766		1753
767	=cut	1754	=cut
768		1755
769	sub cf::player::exists($) {	1756	sub inv_recursive_;
770	cf::player::find $_[0]	1757	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1758	map { $_, inv_recursive_ $_->inv } @_
772	}	1759	}
773		1760
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1761	sub inv_recursive {
775		1762	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	}	1763	}
		1764
		1765	package cf;
787		1766
788	=back	1767	=back
789		1768
790	=head3 cf::object::player	1769	=head3 cf::object::player
791		1770
…		…
829	(ref $cf::CFG{"may_$access"}	1808	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1809	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	1810	: $cf::CFG{"may_$access"})
832	}	1811	}
833		1812
		1813	=item $player_object->enter_link
		1814
		1815	Freezes the player and moves him/her to a special map (C<{link}>).
		1816
		1817	The player should be reasonably safe there for short amounts of time. You
		1818	I<MUST> call C<leave_link> as soon as possible, though.
		1819
		1820	Will never block.
		1821
		1822	=item $player_object->leave_link ($map, $x, $y)
		1823
		1824	Moves the player out of the special C<{link}> map onto the specified
		1825	map. If the map is not valid (or omitted), the player will be moved back
		1826	to the location he/she was before the call to C<enter_link>, or, if that
		1827	fails, to the emergency map position.
		1828
		1829	Might block.
		1830
		1831	=cut
		1832
		1833	sub link_map {
		1834	unless ($LINK_MAP) {
		1835	$LINK_MAP = cf::map::find "{link}"
		1836	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1837	$LINK_MAP->load;
		1838	}
		1839
		1840	$LINK_MAP
		1841	}
		1842
		1843	sub cf::object::player::enter_link {
		1844	my ($self) = @_;
		1845
		1846	$self->deactivate_recursive;
		1847
		1848	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1849
		1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1851	if $self->map;
		1852
		1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1854	}
		1855
		1856	sub cf::object::player::leave_link {
		1857	my ($self, $map, $x, $y) = @_;
		1858
		1859	my $link_pos = delete $self->{_link_pos};
		1860
		1861	unless ($map) {
		1862	# restore original map position
		1863	($map, $x, $y) = @{ $link_pos || [] };
		1864	$map = cf::map::find $map;
		1865
		1866	unless ($map) {
		1867	($map, $x, $y) = @$EMERGENCY_POSITION;
		1868	$map = cf::map::find $map
		1869	or die "FATAL: cannot load emergency map\n";
		1870	}
		1871	}
		1872
		1873	($x, $y) = (-1, -1)
		1874	unless (defined $x) && (defined $y);
		1875
		1876	# use -1 or undef as default coordinates, not 0, 0
		1877	($x, $y) = ($map->enter_x, $map->enter_y)
		1878	if $x <=0 && $y <= 0;
		1879
		1880	$map->load;
		1881	$map->load_diag;
		1882
		1883	return unless $self->contr->active;
		1884	$self->activate_recursive;
		1885
		1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1887	$self->enter_map ($map, $x, $y);
		1888	}
		1889
		1890	cf::player->attach (
		1891	on_logout => sub {
		1892	my ($pl) = @_;
		1893
		1894	# abort map switching before logout
		1895	if ($pl->ob->{_link_pos}) {
		1896	cf::sync_job {
		1897	$pl->ob->leave_link
		1898	};
		1899	}
		1900	},
		1901	on_login => sub {
		1902	my ($pl) = @_;
		1903
		1904	# try to abort aborted map switching on player login :)
		1905	# should happen only on crashes
		1906	if ($pl->ob->{_link_pos}) {
		1907	$pl->ob->enter_link;
		1908	(async {
		1909	$pl->ob->reply (undef,
		1910	"There was an internal problem at your last logout, "
		1911	. "the server will try to bring you to your intended destination in a second.",
		1912	cf::NDI_RED);
		1913	# we need this sleep as the login has a concurrent enter_exit running
		1914	# and this sleep increases chances of the player not ending up in scorn
		1915	Coro::Timer::sleep 1;
		1916	$pl->ob->leave_link;
		1917	})->prio (2);
		1918	}
		1919	},
		1920	);
		1921
		1922	=item $player_object->goto ($path, $x, $y)
		1923
		1924	=cut
		1925
		1926	sub cf::object::player::goto {
		1927	my ($self, $path, $x, $y) = @_;
		1928
		1929	$self->enter_link;
		1930
		1931	(async {
		1932	my $map = eval {
		1933	my $map = cf::map::find $path;
		1934	$map = $map->customise_for ($self) if $map;
		1935	$map
		1936	} or
		1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1938
		1939	$self->leave_link ($map, $x, $y);
		1940	})->prio (1);
		1941	}
		1942
		1943	=item $player_object->enter_exit ($exit_object)
		1944
		1945	=cut
		1946
		1947	sub parse_random_map_params {
		1948	my ($spec) = @_;
		1949
		1950	my $rmp = { # defaults
		1951	xsize => (cf::rndm 15, 40),
		1952	ysize => (cf::rndm 15, 40),
		1953	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1954	#layout => string,
		1955	};
		1956
		1957	for (split /\n/, $spec) {
		1958	my ($k, $v) = split /\s+/, $_, 2;
		1959
		1960	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1961	}
		1962
		1963	$rmp
		1964	}
		1965
		1966	sub prepare_random_map {
		1967	my ($exit) = @_;
		1968
		1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1970
		1971	# all this does is basically replace the /! path by
		1972	# a new random map path (?random/...) with a seed
		1973	# that depends on the exit object
		1974
		1975	my $rmp = parse_random_map_params $exit->msg;
		1976
		1977	if ($exit->map) {
		1978	$rmp->{region} = $exit->region->name;
		1979	$rmp->{origin_map} = $exit->map->path;
		1980	$rmp->{origin_x} = $exit->x;
		1981	$rmp->{origin_y} = $exit->y;
		1982	}
		1983
		1984	$rmp->{random_seed} ||= $exit->random_seed;
		1985
		1986	my $data = cf::to_json $rmp;
		1987	my $md5 = Digest::MD5::md5_hex $data;
		1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1989
		1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1991	aio_write $fh, 0, (length $data), $data, 0;
		1992	undef $fh;
		1993	aio_rename "$meta~", $meta;
		1994
		1995	$exit->slaying ("?random/$md5");
		1996	$exit->msg (undef);
		1997	}
		1998	}
		1999
		2000	sub cf::object::player::enter_exit {
		2001	my ($self, $exit) = @_;
		2002
		2003	return unless $self->type == cf::PLAYER;
		2004
		2005	if ($exit->slaying eq "/!") {
		2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2007	# the problem is that $exit might not survive long enough
		2008	# so it needs to be done right now, right here
		2009	cf::sync_job { prepare_random_map $exit };
		2010	}
		2011
		2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2013	my $hp = $exit->stats->hp;
		2014	my $sp = $exit->stats->sp;
		2015
		2016	$self->enter_link;
		2017
		2018	(async {
		2019	$self->deactivate_recursive; # just to be sure
		2020	unless (eval {
		2021	$self->goto ($slaying, $hp, $sp);
		2022
		2023	1;
		2024	}) {
		2025	$self->message ("Something went wrong deep within the crossfire server. "
		2026	. "I'll try to bring you back to the map you were before. "
		2027	. "Please report this to the dungeon master!",
		2028	cf::NDI_UNIQUE | cf::NDI_RED);
		2029
		2030	warn "ERROR in enter_exit: $@";
		2031	$self->leave_link;
		2032	}
		2033	})->prio (1);
		2034	}
		2035
834	=head3 cf::client	2036	=head3 cf::client
835		2037
836	=over 4	2038	=over 4
837		2039
838	=item $client->send_drawinfo ($text, $flags)	2040	=item $client->send_drawinfo ($text, $flags)
…		…
844		2046
845	sub cf::client::send_drawinfo {	2047	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2048	my ($self, $text, $flags) = @_;
847		2049
848	utf8::encode $text;	2050	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2052	}
851		2053
		2054	=item $client->ext_event ($type, %msg)
		2055
		2056	Sends an exti event to the client.
		2057
		2058	=cut
		2059
		2060	sub cf::client::ext_event($$%) {
		2061	my ($self, $type, %msg) = @_;
		2062
		2063	$msg{msgtype} = "event_$type";
		2064	$self->send_packet ("ext " . cf::to_json \%msg);
		2065	}
852		2066
853	=item $success = $client->query ($flags, "text", \&cb)	2067	=item $success = $client->query ($flags, "text", \&cb)
854		2068
855	Queues a query to the client, calling the given callback with	2069	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
881	on_reply => sub {	2095	on_reply => sub {
882	my ($ns, $msg) = @_;	2096	my ($ns, $msg) = @_;
883		2097
884	# this weird shuffling is so that direct followup queries	2098	# this weird shuffling is so that direct followup queries
885	# get handled first	2099	# get handled first
886	my $queue = delete $ns->{query_queue};	2100	my $queue = delete $ns->{query_queue}
		2101	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2102
888	(shift @$queue)->[1]->($msg);	2103	(shift @$queue)->[1]->($msg);
		2104	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2105
890	push @{ $ns->{query_queue} }, @$queue;	2106	push @{ $ns->{query_queue} }, @$queue;
891		2107
892	if (@{ $ns->{query_queue} } == @$queue) {	2108	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2109	if (@$queue) {
…		…
897	}	2113	}
898	}	2114	}
899	},	2115	},
900	);	2116	);
901		2117
902	=item $client->coro (\&cb)	2118	=item $client->async (\&cb)
903		2119
904	Create a new coroutine, running the specified callback. The coroutine will	2120	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2121	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2122	or loss of connection).
907		2123
908	=cut	2124	=cut
909		2125
910	sub cf::client::coro {	2126	sub cf::client::async {
911	my ($self, $cb) = @_;	2127	my ($self, $cb) = @_;
912		2128
913	my $coro; $coro = async {	2129	my $coro = &Coro::async ($cb);
914	eval {	2130
915	$cb->();	2131	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2132	delete $self->{_coro}{$coro+0};
919	};	2133	});
920		2134
921	$self->{_coro}{$coro+0} = $coro;	2135	$self->{_coro}{$coro+0} = $coro;
		2136
		2137	$coro
922	}	2138	}
923		2139
924	cf::client->attach (	2140	cf::client->attach (
925	on_destroy => sub {	2141	on_destroy => sub {
926	my ($ns) = @_;	2142	my ($ns) = @_;
…		…
951		2167
952	# here we export the classes and methods available to script code	2168	# here we export the classes and methods available to script code
953		2169
954	=pod	2170	=pod
955		2171
956	The following fucntions and emthods are available within a safe environment:	2172	The following functions and methods are available within a safe environment:
957		2173
958	cf::object contr pay_amount pay_player map	2174	cf::object contr pay_amount pay_player map
959	cf::object::player player	2175	cf::object::player player
960	cf::player peaceful	2176	cf::player peaceful
961	cf::map trigger	2177	cf::map trigger
…		…
1054	The parameter C<$family> should best start with the name of the extension	2270	The parameter C<$family> should best start with the name of the extension
1055	using it, it should be unique.	2271	using it, it should be unique.
1056		2272
1057	=over 4	2273	=over 4
1058		2274
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	2275	=item $value = cf::db_get $family => $key
1066		2276
1067	Returns a single value from the database	2277	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		2278
1074	=item cf::db_put $family => $key => $value	2279	=item cf::db_put $family => $key => $value
1075		2280
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you	2281	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		2282
1087	=cut	2283	=cut
1088		2284
1089	our $DB;	2285	our $DB;
1090		2286
1091	{	2287	sub db_init {
		2288	unless ($DB) {
		2289	$DB = BDB::db_create $DB_ENV;
		2290
		2291	cf::sync_job {
		2292	eval {
		2293	$DB->set_flags (BDB::CHKSUM);
		2294
		2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2297	cf::cleanup "db_open(db): $!" if $!;
		2298	};
		2299	cf::cleanup "db_open(db): $@" if $@;
		2300	};
		2301
1092	my $path = cf::localdir . "/database.pst";	2302	my $path = cf::localdir . "/database.pst";
		2303	if (stat $path) {
		2304	cf::sync_job {
		2305	my $pst = Storable::retrieve $path;
1093		2306
1094	sub db_load() {	2307	cf::db_put (board => data => $pst->{board});
1095	warn "loading database $path\n";#d# remove later	2308	cf::db_put (guildrules => data => $pst->{guildrules});
1096	$DB = stat $path ? Storable::retrieve $path : { };	2309	cf::db_put (rent => balance => $pst->{rent}{balance});
1097	}	2310	BDB::db_env_txn_checkpoint $DB_ENV;
1098		2311
1099	my $pid;	2312	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	}	2313	};
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($$;$) {
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	2314	}
1148	);	2315	}
		2316	}
		2317
		2318	sub db_get($$) {
		2319	my $key = "$_[0]/$_[1]";
		2320
		2321	cf::sync_job {
		2322	BDB::db_get $DB, undef, $key, my $data;
		2323
		2324	$! ? ()
		2325	: Compress::LZF::sthaw $data
		2326	}
		2327	}
		2328
		2329	sub db_put($$$) {
		2330	BDB::dbreq_pri 4;
		2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1149	}	2332	}
1150		2333
1151	#############################################################################	2334	#############################################################################
1152	# the server's main()	2335	# the server's init and main functions
		2336
		2337	sub load_facedata($) {
		2338	my ($path) = @_;
		2339
		2340	warn "loading facedata from $path\n";
		2341
		2342	my $facedata;
		2343	0 < aio_load $path, $facedata
		2344	or die "$path: $!";
		2345
		2346	$facedata = Coro::Storable::thaw $facedata;
		2347
		2348	$facedata->{version} == 2
		2349	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2350
		2351	{
		2352	my $faces = $facedata->{faceinfo};
		2353
		2354	while (my ($face, $info) = each %$faces) {
		2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2359	Coro::cede;
		2360	}
		2361
		2362	while (my ($face, $info) = each %$faces) {
		2363	next unless $info->{smooth};
		2364	my $idx = cf::face::find $face
		2365	or next;
		2366	if (my $smooth = cf::face::find $info->{smooth}) {
		2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2368	} else {
		2369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2370	}
		2371	Coro::cede;
		2372	}
		2373	}
		2374
		2375	{
		2376	my $anims = $facedata->{animinfo};
		2377
		2378	while (my ($anim, $info) = each %$anims) {
		2379	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2380	Coro::cede;
		2381	}
		2382
		2383	cf::anim::invalidate_all; # d'oh
		2384	}
		2385
		2386	1
		2387	}
		2388
		2389	sub reload_facedata {
		2390	load_facedata sprintf "%s/facedata", cf::datadir
		2391	or die "unable to load facedata\n";
		2392	}
		2393
		2394	sub reload_regions {
		2395	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2396	or die "unable to load regions file\n";
		2397	}
		2398
		2399	sub reload_archetypes {
		2400	load_resource_file sprintf "%s/archetypes", cf::datadir
		2401	or die "unable to load archetypes\n";
		2402	}
		2403
		2404	sub reload_treasures {
		2405	load_resource_file sprintf "%s/treasures", cf::datadir
		2406	or die "unable to load treasurelists\n";
		2407	}
		2408
		2409	sub reload_resources {
		2410	warn "reloading resource files...\n";
		2411
		2412	reload_regions;
		2413	reload_facedata;
		2414	reload_archetypes;
		2415	reload_treasures;
		2416
		2417	warn "finished reloading resource files\n";
		2418	}
		2419
		2420	sub init {
		2421	reload_resources;
		2422	}
1153		2423
1154	sub cfg_load {	2424	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2425	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;	2426	or return;
1157		2427
1158	local $/;	2428	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2429	*CFG = YAML::Syck::Load <$fh>;
		2430
		2431	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2432
		2433	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2434	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2435
		2436	if (exists $CFG{mlockall}) {
		2437	eval {
		2438	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2439	and die "WARNING: m(un)lockall failed: $!\n";
		2440	};
		2441	warn $@ if $@;
		2442	}
1160	}	2443	}
1161		2444
1162	sub main {	2445	sub main {
		2446	# we must not ever block the main coroutine
		2447	local $Coro::idle = sub {
		2448	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2449	(async {
		2450	Event::one_event;
		2451	})->prio (Coro::PRIO_MAX);
		2452	};
		2453
1163	cfg_load;	2454	cfg_load;
1164	db_load;	2455	db_init;
1165	load_extensions;	2456	load_extensions;
		2457
		2458	$TICK_WATCHER->start;
1166	Event::loop;	2459	Event::loop;
1167	}	2460	}
1168		2461
1169	#############################################################################	2462	#############################################################################
1170	# initialisation	2463	# initialisation and cleanup
1171		2464
1172	sub _perl_reload(&) {	2465	# install some emergency cleanup handlers
		2466	BEGIN {
		2467	for my $signal (qw(INT HUP TERM)) {
		2468	Event->signal (
		2469	reentrant => 0,
		2470	data => WF_AUTOCANCEL,
		2471	signal => $signal,
		2472	prio => 0,
		2473	cb => sub {
		2474	cf::cleanup "SIG$signal";
		2475	},
		2476	);
		2477	}
		2478	}
		2479
		2480	sub emergency_save() {
		2481	my $freeze_guard = cf::freeze_mainloop;
		2482
		2483	warn "enter emergency perl save\n";
		2484
		2485	cf::sync_job {
		2486	# use a peculiar iteration method to avoid tripping on perl
		2487	# refcount bugs in for. also avoids problems with players
		2488	# and maps saved/destroyed asynchronously.
		2489	warn "begin emergency player save\n";
		2490	for my $login (keys %cf::PLAYER) {
		2491	my $pl = $cf::PLAYER{$login} or next;
		2492	$pl->valid or next;
		2493	$pl->save;
		2494	}
		2495	warn "end emergency player save\n";
		2496
		2497	warn "begin emergency map save\n";
		2498	for my $path (keys %cf::MAP) {
		2499	my $map = $cf::MAP{$path} or next;
		2500	$map->valid or next;
		2501	$map->save;
		2502	}
		2503	warn "end emergency map save\n";
		2504
		2505	warn "begin emergency database checkpoint\n";
		2506	BDB::db_env_txn_checkpoint $DB_ENV;
		2507	warn "end emergency database checkpoint\n";
		2508	};
		2509
		2510	warn "leave emergency perl save\n";
		2511	}
		2512
		2513	sub post_cleanup {
1173	my ($msg) = @_;	2514	my ($make_core) = @_;
1174		2515
1175	$msg->("reloading...");	2516	warn Carp::longmess "post_cleanup backtrace"
		2517	if $make_core;
		2518	}
1176		2519
1177	eval {	2520	sub do_reload_perl() {
1178	# cancel all watchers	2521	# can/must only be called in main
		2522	if ($Coro::current != $Coro::main) {
		2523	warn "can only reload from main coroutine";
		2524	return;
		2525	}
		2526
		2527	warn "reloading...";
		2528
		2529	warn "entering sync_job";
		2530
		2531	cf::sync_job {
		2532	cf::write_runtime; # external watchdog should not bark
		2533	cf::emergency_save;
		2534	cf::write_runtime; # external watchdog should not bark
		2535
		2536	warn "syncing database to disk";
		2537	BDB::db_env_txn_checkpoint $DB_ENV;
		2538
		2539	# if anything goes wrong in here, we should simply crash as we already saved
		2540
		2541	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	2542	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	2543	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	2544	}
1182		2545
1183	# unload all extensions	2546	warn "flushing outstanding aio requests";
1184	for (@exts) {	2547	for (;;) {
1185	$msg->("unloading <$_>");	2548	BDB::flush;
1186	unload_extension $_;	2549	IO::AIO::flush;
		2550	Coro::cede;
		2551	last unless IO::AIO::nreqs || BDB::nreqs;
		2552	warn "iterate...";
		2553	}
		2554
		2555	++$RELOAD;
		2556
		2557	warn "cancelling all extension coros";
		2558	$_->cancel for values %EXT_CORO;
		2559	%EXT_CORO = ();
		2560
		2561	warn "removing commands";
		2562	%COMMAND = ();
		2563
		2564	warn "removing ext commands";
		2565	%EXTCMD = ();
		2566
		2567	warn "unloading/nuking all extensions";
		2568	for my $pkg (@EXTS) {
		2569	warn "... unloading $pkg";
		2570
		2571	if (my $cb = $pkg->can ("unload")) {
		2572	eval {
		2573	$cb->($pkg);
		2574	1
		2575	} or warn "$pkg unloaded, but with errors: $@";
1187	}	2576	}
1188		2577
		2578	warn "... nuking $pkg";
		2579	Symbol::delete_package $pkg;
		2580	}
		2581
1189	# unload all modules loaded from $LIBDIR	2582	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	2583	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2584	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		2585
1193	$msg->("removing <$k>");	2586	warn "... unloading $k";
1194	delete $INC{$k};	2587	delete $INC{$k};
1195		2588
1196	$k =~ s/\.pm$//;	2589	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	2590	$k =~ s/\//::/g;
1198		2591
…		…
1201	}	2594	}
1202		2595
1203	Symbol::delete_package $k;	2596	Symbol::delete_package $k;
1204	}	2597	}
1205		2598
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	2599	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	2600	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2601	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		2602
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	2603	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	2604	delete $INC{"cf.pm"};
1218		2605
1219	# don't, removes xs symbols, too,	2606	# don't, removes xs symbols, too,
1220	# and global variables created in xs	2607	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	2608	#Symbol::delete_package __PACKAGE__;
1222		2609
1223	# reload cf.pm	2610	warn "unload completed, starting to reload now";
		2611
1224	$msg->("reloading cf.pm");	2612	warn "reloading cf.pm";
1225	require cf;	2613	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2614	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		2615
1228
1229	# load config and database again	2616	warn "loading config and database again";
1230	cf::cfg_load;	2617	cf::cfg_load;
1231	cf::db_load;
1232		2618
1233	# load extensions	2619	warn "loading extensions";
1234	$msg->("load extensions");
1235	cf::load_extensions;	2620	cf::load_extensions;
1236		2621
1237	# reattach attachments to objects	2622	warn "reattaching attachments to objects/players";
1238	$msg->("reattach");	2623	_global_reattach; # objects, sockets
1239	_global_reattach;	2624	warn "reattaching attachments to maps";
		2625	reattach $_ for values %MAP;
		2626	warn "reattaching attachments to players";
		2627	reattach $_ for values %PLAYER;
		2628
		2629	warn "leaving sync_job";
		2630
		2631	1
		2632	} or do {
		2633	warn $@;
		2634	warn "error while reloading, exiting.";
		2635	exit 1;
1240	};	2636	};
1241	$msg->($@) if $@;
1242		2637
1243	$msg->("reloaded");	2638	warn "reloaded";
1244	};	2639	};
1245		2640
1246	sub perl_reload() {	2641	our $RELOAD_WATCHER; # used only during reload
1247	_perl_reload {	2642
1248	warn $_[0];	2643	sub reload_perl() {
1249	print "$_[0]\n";	2644	# doing reload synchronously and two reloads happen back-to-back,
		2645	# coro crashes during coro_state_free->destroy here.
		2646
		2647	$RELOAD_WATCHER ||= Event->timer (
		2648	reentrant => 0,
		2649	after => 0,
		2650	data => WF_AUTOCANCEL,
		2651	cb => sub {
		2652	do_reload_perl;
		2653	undef $RELOAD_WATCHER;
		2654	},
1250	};	2655	);
1251	}	2656	}
1252		2657
1253	register "<global>", __PACKAGE__;
1254
1255	register_command "perl-reload" => sub {	2658	register_command "reload" => sub {
1256	my ($who, $arg) = @_;	2659	my ($who, $arg) = @_;
1257		2660
1258	if ($who->flag (FLAG_WIZ)) {	2661	if ($who->flag (FLAG_WIZ)) {
1259	_perl_reload {	2662	$who->message ("reloading server.");
1260	warn $_[0];	2663	async { reload_perl };
1261	$who->message ($_[0]);
1262	};
1263	}	2664	}
1264	};	2665	};
1265		2666
1266	unshift @INC, $LIBDIR;	2667	unshift @INC, $LIBDIR;
1267		2668
		2669	my $bug_warning = 0;
		2670
		2671	our @WAIT_FOR_TICK;
		2672	our @WAIT_FOR_TICK_BEGIN;
		2673
		2674	sub wait_for_tick {
		2675	return unless $TICK_WATCHER->is_active;
		2676	return if $Coro::current == $Coro::main;
		2677
		2678	my $signal = new Coro::Signal;
		2679	push @WAIT_FOR_TICK, $signal;
		2680	$signal->wait;
		2681	}
		2682
		2683	sub wait_for_tick_begin {
		2684	return unless $TICK_WATCHER->is_active;
		2685	return if $Coro::current == $Coro::main;
		2686
		2687	my $signal = new Coro::Signal;
		2688	push @WAIT_FOR_TICK_BEGIN, $signal;
		2689	$signal->wait;
		2690	}
		2691
1268	$TICK_WATCHER = Event->timer (	2692	$TICK_WATCHER = Event->timer (
		2693	reentrant => 0,
		2694	parked => 1,
1269	prio => 0,	2695	prio => 0,
1270	at => $NEXT_TICK || 1,	2696	at => $NEXT_TICK || $TICK,
1271	data => WF_AUTOCANCEL,	2697	data => WF_AUTOCANCEL,
1272	cb => sub {	2698	cb => sub {
		2699	if ($Coro::current != $Coro::main) {
		2700	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2701	unless ++$bug_warning > 10;
		2702	return;
		2703	}
		2704
		2705	$NOW = Event::time;
		2706
1273	cf::server_tick; # one server iteration	2707	cf::server_tick; # one server iteration
1274		2708
1275	my $NOW = Event::time;	2709	$RUNTIME += $TICK;
1276	$NEXT_TICK += $TICK;	2710	$NEXT_TICK += $TICK;
1277		2711
		2712	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2713	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2714	Coro::async_pool {
		2715	write_runtime
		2716	or warn "ERROR: unable to write runtime file: $!";
		2717	};
		2718	}
		2719
		2720	# my $AFTER = Event::time;
		2721	# warn $AFTER - $NOW;#d#
		2722
1278	# if we are delayed by four ticks or more, skip them all	2723	# if we are delayed by four ticks or more, skip them all
1279	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2724	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1280		2725
1281	$TICK_WATCHER->at ($NEXT_TICK);	2726	$TICK_WATCHER->at ($NEXT_TICK);
1282	$TICK_WATCHER->start;	2727	$TICK_WATCHER->start;
		2728
		2729	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2730	$sig->send;
		2731	}
		2732	while (my $sig = shift @WAIT_FOR_TICK) {
		2733	$sig->send;
		2734	}
		2735
		2736	_post_tick;
1283	},	2737	},
1284	);	2738	);
1285		2739
		2740	{
		2741	BDB::max_poll_time $TICK * 0.1;
		2742	$BDB_POLL_WATCHER = Event->io (
		2743	reentrant => 0,
		2744	fd => BDB::poll_fileno,
		2745	poll => 'r',
		2746	prio => 0,
		2747	data => WF_AUTOCANCEL,
		2748	cb => \&BDB::poll_cb,
		2749	);
		2750	BDB::min_parallel 8;
		2751
		2752	BDB::set_sync_prepare {
		2753	my $status;
		2754	my $current = $Coro::current;
		2755	(
		2756	sub {
		2757	$status = $!;
		2758	$current->ready; undef $current;
		2759	},
		2760	sub {
		2761	Coro::schedule while defined $current;
		2762	$! = $status;
		2763	},
		2764	)
		2765	};
		2766
		2767	unless ($DB_ENV) {
		2768	$DB_ENV = BDB::db_env_create;
		2769
		2770	cf::sync_job {
		2771	eval {
		2772	BDB::db_env_open
		2773	$DB_ENV,
		2774	$BDB_ENV_DIR,
		2775	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2776	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2777	0666;
		2778
		2779	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2780
		2781	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2782	$DB_ENV->set_lk_detect;
		2783	};
		2784
		2785	cf::cleanup "db_env_open(db): $@" if $@;
		2786	};
		2787	}
		2788	}
		2789
		2790	{
		2791	IO::AIO::min_parallel 8;
		2792
		2793	undef $Coro::AIO::WATCHER;
1286	IO::AIO::max_poll_time $TICK * 0.2;	2794	IO::AIO::max_poll_time $TICK * 0.1;
1287		2795	$AIO_POLL_WATCHER = Event->io (
1288	Event->io (fd => IO::AIO::poll_fileno,	2796	reentrant => 0,
1289	poll => 'r',
1290	prio => 5,
1291	data => WF_AUTOCANCEL,	2797	data => WF_AUTOCANCEL,
		2798	fd => IO::AIO::poll_fileno,
		2799	poll => 'r',
		2800	prio => 6,
1292	cb => \&IO::AIO::poll_cb);	2801	cb => \&IO::AIO::poll_cb,
		2802	);
		2803	}
		2804
		2805	END { cf::emergency_save }
1293		2806
1294	1	2807	1
1295		2808

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