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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.103 by root, Sat Dec 30 10:16:11 2006 UTC vs.
Revision 1.221 by pippijn, Fri Mar 2 13:32:52 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
		18	use Coro::AIO;
18		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
		23	use Fcntl;
19	use IO::AIO 2.3;	24	use IO::AIO 2.32 ();
20	use YAML::Syck ();	25	use YAML::Syck ();
21	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
22		30
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
24		34
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
27		37
28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		39
32	our %COMMAND = ();	40	our %COMMAND = ();
33	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
35		47
36	our @EVENT;	48	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
38		50
39	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	55	our $NEXT_TICK;
42	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
43		61
44	our %CFG;	62	our %CFG;
45		63
46	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	65	our $RUNTIME;
48		66
		67	our %PLAYER; # all users
49	our %MAP; # all maps	68	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
51	our $FREEZE;	70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		78
53	binmode STDOUT;	79	binmode STDOUT;
54	binmode STDERR;	80	binmode STDERR;
55		81
56	# read virtual server time, if available	82	# read virtual server time, if available
…		…
62		88
63	mkdir cf::localdir;	89	mkdir cf::localdir;
64	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
65	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
67		95
68	our %EXT_CORO;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
69		99
70	#############################################################################	100	#############################################################################
71		101
72	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
73		103
…		…
97		127
98	=item %cf::CFG	128	=item %cf::CFG
99		129
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
102		139
103	=back	140	=back
104		141
105	=cut	142	=cut
106		143
…		…
110	utf8::encode $msg;	147	utf8::encode $msg;
111		148
112	$msg .= "\n"	149	$msg .= "\n"
113	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
114		151
115	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
116	};	153	};
117	}	154	}
118		155
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
138		175
139	$Event::DIED = sub {	176	$Event::DIED = sub {
140	warn "error in event callback: @_";	177	warn "error in event callback: @_";
141	};	178	};
142		179
143	my %ext_pkg;
144	my @exts;
145	my @hook;
146
147	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
148		181
149	=over 4	182	=over 4
150		183
		184	=item dumpval $ref
		185
151	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
152		206
153	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
154		208
155	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
156		210
…		…
172	sub to_json($) {	226	sub to_json($) {
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
175	}	229	}
176		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
		292
		293	=item cf::sync_job { BLOCK }
		294
		295	The design of crossfire+ requires that the main coro ($Coro::main) is
		296	always able to handle events or runnable, as crossfire+ is only partly
		297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		298
		299	If it must be done, put the blocking parts into C<sync_job>. This will run
		300	the given BLOCK in another coroutine while waiting for the result. The
		301	server will be frozen during this time, so the block should either finish
		302	fast or be very important.
		303
		304	=cut
		305
		306	sub sync_job(&) {
		307	my ($job) = @_;
		308
		309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
		324	})->prio (Coro::PRIO_MAX);
		325
		326	while ($busy) {
		327	Coro::cede or Event::one_event;
		328	}
		329
		330	wantarray ? @res : $res[0]
		331	} else {
		332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
		335	}
		336	}
		337
177	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
178		339
179	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
181		342
182	=cut	343	=cut
183		344
184	sub coro(&) {	345	sub async_ext(&) {
185	my $cb = shift;	346	my $cb = shift;
186		347
187	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		349
194	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
196	});	352	});
197	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
198		354
199	$coro	355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
200	}	384	}
201		385
202	=back	386	=back
203		387
204	=cut	388	=cut
…		…
335	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
336	our @CB_MAP = ();	520	our @CB_MAP = ();
337		521
338	my %attachment;	522	my %attachment;
339		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
340	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
341	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
342		532
343	use sort 'stable';	533	use sort 'stable';
344		534
…		…
515	# object support	705	# object support
516		706
517	sub reattach {	707	sub reattach {
518	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
519	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
520		712
521	my $registry = $obj->registry;	713	my $registry = $obj->registry;
522		714
523	@$registry = ();	715	@$registry = ();
524		716
…		…
563	);	755	);
564		756
565	sub object_freezer_save {	757	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	758	my ($filename, $rdata, $objs) = @_;
567		759
		760	sync_job {
568	if (length $$rdata) {	761	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	762	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
571		764
572	if (open my $fh, ">:raw", "$filename~") {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		768	aio_fsync $fh if $cf::USE_FSYNC;
580	close $fh;	769	close $fh;
		770
		771	if (@$objs) {
		772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		773	chmod SAVE_MODE, $fh;
		774	my $data = Storable::nfreeze { version => 1, objs => $objs };
		775	aio_write $fh, 0, (length $data), $data, 0;
		776	aio_fsync $fh if $cf::USE_FSYNC;
		777	close $fh;
581	rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
		779	}
		780	} else {
		781	aio_unlink "$filename.pst";
		782	}
		783
		784	aio_rename "$filename~", $filename;
582	} else {	785	} else {
583	unlink "$filename.pst";	786	warn "FATAL: $filename~: $!\n";
584	}	787	}
585
586	rename "$filename~", $filename;
587	} else {	788	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	789	aio_unlink $filename;
592	unlink "$filename.pst";	790	aio_unlink "$filename.pst";
		791	}
593	}	792	}
594	}	793	}
595		794
596	sub object_freezer_as_string {	795	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	796	my ($rdata, $objs) = @_;
…		…
602	}	801	}
603		802
604	sub object_thawer_load {	803	sub object_thawer_load {
605	my ($filename) = @_;	804	my ($filename) = @_;
606		805
607	local $/;	806	my ($data, $av);
608		807
609	my $av;	808	(aio_load $filename, $data) >= 0
		809	or return;
610		810
611	#TODO: use sysread etc.	811	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	812	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	813	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
616	}	815	}
		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
617	return ($data, $av);	819	return ($data, $av);
618	}
619
620	()
621	}	820	}
622		821
623	#############################################################################	822	#############################################################################
624	# command handling &c	823	# command handling &c
625		824
…		…
649	=cut	848	=cut
650		849
651	sub register_extcmd {	850	sub register_extcmd {
652	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
653		852
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
658	}	854	}
659		855
660	cf::player->attach (	856	cf::player->attach (
661	on_command => sub {	857	on_command => sub {
662	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
675		871
676	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
677		873
678	if (ref $msg) {	874	if (ref $msg) {
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
681	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
682	}	878	}
683	}	879	}
684	} else {	880	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
687		883
688	cf::override;	884	cf::override;
689	},	885	},
690	);	886	);
691		887
692	sub register {
693	my ($base, $pkg) = @_;
694
695	#TODO
696	}
697
698	sub load_extension {	888	sub load_extension {
699	my ($path) = @_;	889	my ($path) = @_;
700		890
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
702	my $base = $1;	892	my $base = $1;
703	my $pkg = $1;	893	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
706		896
707	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
708		898
709	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
710	or die "$path: $!";	900	or die "$path: $!";
711		901
712	my $source =	902	my $source =
713	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
714	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
715	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
716	. "\n};\n1";	906	. "\n};\n1";
717		907
718	eval $source	908	unless (eval $source) {
719	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
720	: "extension disabled.\n";	910	: "extension disabled.\n";
721		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
722	push @exts, $pkg;	912	warn $@;
723	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
724		914	exit 1;
725	# no strict 'refs';	915	}
726	# @{"$pkg\::ISA"} = ext::;	916	die $@;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }	917	}
741		918
742	# remove commands	919	push @EXTS, $pkg;
743	for my $name (keys %COMMAND) {
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
745
746	if (@cb) {
747	$COMMAND{$name} = \@cb;
748	} else {
749	delete $COMMAND{$name};
750	}
751	}
752
753	# remove extcmds
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
755	delete $EXTCMD{$name};
756	}
757
758	if (my $cb = $pkg->can ("unload")) {
759	eval {
760	$cb->($pkg);
761	1
762	} or warn "$pkg unloaded, but with errors: $@";
763	}
764
765	Symbol::delete_package $pkg;
766	}	920	}
767		921
768	sub load_extensions {	922	sub load_extensions {
769	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
770	next unless -r $ext;	924	next unless -r $ext;
…		…
774	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
775	}	929	}
776	}	930	}
777		931
778	#############################################################################	932	#############################################################################
779	# load/save/clean perl data associated with a map
780		933
781	*cf::mapsupport::on_clean = sub {	934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item $pl->kick
		1060
		1061	Kicks a player out of the game. This destroys the connection.
		1062
		1063	=cut
		1064
		1065	sub kick {
		1066	my ($pl, $kicker) = @_;
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1069	$pl->killer ("kicked");
		1070	$pl->ns->destroy;
		1071	}
		1072
		1073	=item cf::player::list_logins
		1074
		1075	Returns am arrayref of all valid playernames in the system, can take a
		1076	while and may block, so not sync_job-capable, ever.
		1077
		1078	=cut
		1079
		1080	sub list_logins {
		1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1082	or return [];
		1083
		1084	my @logins;
		1085
		1086	for my $login (@$dirs) {
		1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1088	aio_read $fh, 0, 512, my $buf, 0 or next;
		1089	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1090
		1091	utf8::decode $login;
		1092	push @logins, $login;
		1093	}
		1094
		1095	\@logins
		1096	}
		1097
		1098	=item $player->maps
		1099
		1100	Returns an arrayref of map paths that are private for this
		1101	player. May block.
		1102
		1103	=cut
		1104
		1105	sub maps($) {
		1106	my ($pl) = @_;
		1107
		1108	$pl = ref $pl ? $pl->ob->name : $pl;
		1109
		1110	my $files = aio_readdir playerdir $pl
		1111	or return;
		1112
		1113	my @paths;
		1114
		1115	for (@$files) {
		1116	utf8::decode $_;
		1117	next if /\.(?:pl|pst)$/;
		1118	next unless /^$PATH_SEP/o;
		1119
		1120	push @paths, cf::map::normalise "~$pl/$_";
		1121	}
		1122
		1123	\@paths
		1124	}
		1125
		1126	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1127
		1128	Sends an ext reply to the player.
		1129
		1130	=cut
		1131
		1132	sub ext_reply($$$%) {
		1133	my ($self, $id, %msg) = @_;
		1134
		1135	$msg{msgid} = $id;
		1136
		1137	$self->send ("ext " . cf::to_json \%msg);
		1138	}
		1139
		1140	package cf;
		1141
		1142	=back
		1143
		1144
		1145	=head3 cf::map
		1146
		1147	=over 4
		1148
		1149	=cut
		1150
		1151	package cf::map;
		1152
		1153	use Fcntl;
		1154	use Coro::AIO;
		1155
		1156	use overload
		1157	'""' => \&as_string,
		1158	fallback => 1;
		1159
		1160	our $MAX_RESET = 3600;
		1161	our $DEFAULT_RESET = 3000;
		1162
		1163	sub generate_random_map {
		1164	my ($self, $rmp) = @_;
		1165	# mit "rum" bekleckern, nicht
		1166	$self->_create_random_map (
		1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1170	$rmp->{exit_on_final_map},
		1171	$rmp->{xsize}, $rmp->{ysize},
		1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1174	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1175	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1176	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1177	(cf::region::find $rmp->{region}), $rmp->{custom}
		1178	)
		1179	}
		1180
		1181	=item cf::map->register ($regex, $prio)
		1182
		1183	Register a handler for the map path matching the given regex at the
		1184	givne priority (higher is better, built-in handlers have priority 0, the
		1185	default).
		1186
		1187	=cut
		1188
		1189	sub register {
		1190	my (undef, $regex, $prio) = @_;
		1191	my $pkg = caller;
		1192
		1193	no strict;
		1194	push @{"$pkg\::ISA"}, __PACKAGE__;
		1195
		1196	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1197	}
		1198
		1199	# also paths starting with '/'
		1200	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1201
		1202	sub thawer_merge {
		1203	my ($self, $merge) = @_;
		1204
		1205	# we have to keep some variables in memory intact
		1206	local $self->{path};
		1207	local $self->{load_path};
		1208	local $self->{deny_save};
		1209	local $self->{deny_reset};
		1210
		1211	$self->SUPER::thawer_merge ($merge);
		1212	}
		1213
		1214	sub normalise {
		1215	my ($path, $base) = @_;
		1216
		1217	$path = "$path"; # make sure its a string
		1218
		1219	$path =~ s/\.map$//;
		1220
		1221	# map plan:
		1222	#
		1223	# /! non-realised random map exit (special hack!)
		1224	# {... are special paths that are not being touched
		1225	# ?xxx/... are special absolute paths
		1226	# ?random/... random maps
		1227	# /... normal maps
		1228	# ~user/... per-player map of a specific user
		1229
		1230	$path =~ s/$PATH_SEP/\//go;
		1231
		1232	# treat it as relative path if it starts with
		1233	# something that looks reasonable
		1234	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1235	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1236
		1237	$base =~ s{[^/]+/?$}{};
		1238	$path = "$base/$path";
		1239	}
		1240
		1241	for ($path) {
		1242	redo if s{//}{/};
		1243	redo if s{/\.?/}{/};
		1244	redo if s{/[^/]+/\.\./}{/};
		1245	}
		1246
		1247	$path
		1248	}
		1249
		1250	sub new_from_path {
		1251	my (undef, $path, $base) = @_;
		1252
		1253	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1254
		1255	$path = normalise $path, $base;
		1256
		1257	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1258	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1259	my $self = bless cf::map::new, $pkg;
		1260	$self->{path} = $path; $self->path ($path);
		1261	$self->init; # pass $1 etc.
		1262	return $self;
		1263	}
		1264	}
		1265
		1266	Carp::carp "unable to resolve path '$path' (base '$base').";
		1267	()
		1268	}
		1269
		1270	sub init {
		1271	my ($self) = @_;
		1272
		1273	$self
		1274	}
		1275
		1276	sub as_string {
		1277	my ($self) = @_;
		1278
		1279	"$self->{path}"
		1280	}
		1281
		1282	# the displayed name, this is a one way mapping
		1283	sub visible_name {
		1284	&as_string
		1285	}
		1286
		1287	# the original (read-only) location
		1288	sub load_path {
		1289	my ($self) = @_;
		1290
		1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1292	}
		1293
		1294	# the temporary/swap location
		1295	sub save_path {
		1296	my ($self) = @_;
		1297
		1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1300	}
		1301
		1302	# the unique path, undef == no special unique path
		1303	sub uniq_path {
		1304	my ($self) = @_;
		1305
		1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1308	}
		1309
		1310	# and all this just because we cannot iterate over
		1311	# all maps in C++...
		1312	sub change_all_map_light {
		1313	my ($change) = @_;
		1314
		1315	$_->change_map_light ($change)
		1316	for grep $_->outdoor, values %cf::MAP;
		1317	}
		1318
		1319	sub unlink_save {
		1320	my ($self) = @_;
		1321
		1322	utf8::encode (my $save = $self->save_path);
		1323	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1325	}
		1326
		1327	sub load_header_from($) {
		1328	my ($self, $path) = @_;
		1329
		1330	utf8::encode $path;
		1331	#aio_open $path, O_RDONLY, 0
		1332	# or return;
		1333
		1334	$self->_load_header ($path)
		1335	or return;
		1336
		1337	$self->{load_path} = $path;
		1338
		1339	1
		1340	}
		1341
		1342	sub load_header_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->load_path)
		1346	}
		1347
		1348	sub load_header_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->load_header_from ($self->save_path)
		1352	}
		1353
		1354	sub prepare_temp {
		1355	my ($self) = @_;
		1356
		1357	$self->last_access ((delete $self->{last_access})
		1358	|| $cf::RUNTIME); #d#
		1359	# safety
		1360	$self->{instantiate_time} = $cf::RUNTIME
		1361	if $self->{instantiate_time} > $cf::RUNTIME;
		1362	}
		1363
		1364	sub prepare_orig {
		1365	my ($self) = @_;
		1366
		1367	$self->{load_original} = 1;
		1368	$self->{instantiate_time} = $cf::RUNTIME;
		1369	$self->last_access ($cf::RUNTIME);
		1370	$self->instantiate;
		1371	}
		1372
		1373	sub load_header {
		1374	my ($self) = @_;
		1375
		1376	if ($self->load_header_temp) {
		1377	$self->prepare_temp;
		1378	} else {
		1379	$self->load_header_orig
		1380	or return;
		1381	$self->prepare_orig;
		1382	}
		1383
		1384	1
		1385	}
		1386
		1387	sub find;
		1388	sub find {
		1389	my ($path, $origin) = @_;
		1390
		1391	$path = normalise $path, $origin && $origin->path;
		1392
		1393	cf::lock_wait "map_find:$path";
		1394
		1395	$cf::MAP{$path} || do {
		1396	my $guard = cf::lock_acquire "map_find:$path";
		1397	my $map = new_from_path cf::map $path
		1398	or return;
		1399
		1400	$map->{last_save} = $cf::RUNTIME;
		1401
		1402	$map->load_header
		1403	or return;
		1404
		1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1406	# doing this can freeze the server in a sync job, obviously
		1407	#$cf::WAIT_FOR_TICK->wait;
		1408	$map->reset;
		1409	undef $guard;
		1410	return find $path;
		1411	}
		1412
		1413	$cf::MAP{$path} = $map
		1414	}
		1415	}
		1416
		1417	sub pre_load { }
		1418	sub post_load { }
		1419
		1420	sub load {
		1421	my ($self) = @_;
		1422
		1423	local $self->{deny_reset} = 1; # loading can take a long time
		1424
		1425	my $path = $self->{path};
		1426	my $guard = cf::lock_acquire "map_load:$path";
		1427
		1428	return if $self->in_memory != cf::MAP_SWAPPED;
		1429
		1430	$self->in_memory (cf::MAP_LOADING);
		1431
		1432	$self->alloc;
		1433
		1434	$self->pre_load;
		1435
		1436	$self->_load_objects ($self->{load_path}, 1)
		1437	or return;
		1438
		1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1440	if delete $self->{load_original};
		1441
		1442	if (my $uniq = $self->uniq_path) {
		1443	utf8::encode $uniq;
		1444	if (aio_open $uniq, O_RDONLY, 0) {
		1445	$self->clear_unique_items;
		1446	$self->_load_objects ($uniq, 0);
		1447	}
		1448	}
		1449
		1450	Coro::cede;
		1451
		1452	# now do the right thing for maps
		1453	$self->link_multipart_objects;
		1454
		1455	unless ($self->{deny_activate}) {
		1456	$self->decay_objects;
		1457	$self->fix_auto_apply;
		1458	$self->update_buttons;
		1459	Coro::cede;
		1460	$self->set_darkness_map;
		1461	$self->difficulty ($self->estimate_difficulty)
		1462	unless $self->difficulty;
		1463	Coro::cede;
		1464	$self->activate;
		1465	}
		1466
		1467	$self->post_load;
		1468
		1469	$self->in_memory (cf::MAP_IN_MEMORY);
		1470	}
		1471
		1472	sub customise_for {
		1473	my ($self, $ob) = @_;
		1474
		1475	return find "~" . $ob->name . "/" . $self->{path}
		1476	if $self->per_player;
		1477
		1478	$self
		1479	}
		1480
		1481	# find and load all maps in the 3x3 area around a map
		1482	sub load_diag {
782	my ($map) = @_;	1483	my ($map) = @_;
783		1484
784	my $path = $map->tmpname;	1485	my @diag; # diagonal neighbours
785	defined $path or return;
786		1486
787	unlink "$path.pst";	1487	for (0 .. 3) {
788	};	1488	my $neigh = $map->tile_path ($_)
		1489	or next;
		1490	$neigh = find $neigh, $map
		1491	or next;
		1492	$neigh->load;
789		1493
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1496	}
791		1497
792	#############################################################################	1498	for (@diag) {
793	# load/save perl data associated with player->ob objects	1499	my $neigh = find @$_
794		1500	or next;
795	sub all_objects(@) {	1501	$neigh->load;
796	@_, map all_objects ($_->inv), @_	1502	}
797	}	1503	}
798		1504
799	# TODO: compatibility cruft, remove when no longer needed	1505	sub find_sync {
800	cf::player->attach (	1506	my ($path, $origin) = @_;
801	on_load => sub {
802	my ($pl, $path) = @_;
803		1507
804	for my $o (all_objects $pl->ob) {	1508	cf::sync_job { find $path, $origin }
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1509	}
806	$o->set_ob_key_value ("_perl_data");
807		1510
808	%$o = %{ Storable::thaw pack "H*", $value };	1511	sub do_load_sync {
		1512	my ($map) = @_;
		1513
		1514	cf::sync_job { $map->load };
		1515	}
		1516
		1517	our %MAP_PREFETCH;
		1518	our $MAP_PREFETCHER = undef;
		1519
		1520	sub find_async {
		1521	my ($path, $origin) = @_;
		1522
		1523	$path = normalise $path, $origin && $origin->{path};
		1524
		1525	if (my $map = $cf::MAP{$path}) {
		1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1527	}
		1528
		1529	undef $MAP_PREFETCH{$path};
		1530	$MAP_PREFETCHER ||= cf::async {
		1531	while (%MAP_PREFETCH) {
		1532	for my $path (keys %MAP_PREFETCH) {
		1533	my $map = find $path
		1534	or next;
		1535	$map->load;
		1536
		1537	delete $MAP_PREFETCH{$path};
809	}	1538	}
810	}	1539	}
		1540	undef $MAP_PREFETCHER;
		1541	};
		1542	$MAP_PREFETCHER->prio (6);
		1543
		1544	()
		1545	}
		1546
		1547	sub save {
		1548	my ($self) = @_;
		1549
		1550	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1551
		1552	$self->{last_save} = $cf::RUNTIME;
		1553
		1554	return unless $self->dirty;
		1555
		1556	my $save = $self->save_path; utf8::encode $save;
		1557	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1558
		1559	$self->{load_path} = $save;
		1560
		1561	return if $self->{deny_save};
		1562
		1563	local $self->{last_access} = $self->last_access;#d#
		1564
		1565	cf::async {
		1566	$_->contr->save for $self->players;
		1567	};
		1568
		1569	if ($uniq) {
		1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1572	} else {
		1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
811	},	1574	}
812	);	1575	}
813		1576
814	#############################################################################	1577	sub swap_out {
		1578	my ($self) = @_;
815		1579
816	=head2 CORE EXTENSIONS	1580	# save first because save cedes
		1581	$self->save;
817		1582
818	Functions and methods that extend core crossfire objects.	1583	my $lock = cf::lock_acquire "map_data:" . $self->path;
819		1584
820	=head3 cf::player	1585	return if $self->players;
		1586	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1587	return if $self->{deny_save};
		1588
		1589	$self->clear;
		1590	$self->in_memory (cf::MAP_SWAPPED);
		1591	}
		1592
		1593	sub reset_at {
		1594	my ($self) = @_;
		1595
		1596	# TODO: safety, remove and allow resettable per-player maps
		1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1598	return 1e99 if $self->{deny_reset};
		1599
		1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1602
		1603	$time + $to
		1604	}
		1605
		1606	sub should_reset {
		1607	my ($self) = @_;
		1608
		1609	$self->reset_at <= $cf::RUNTIME
		1610	}
		1611
		1612	sub reset {
		1613	my ($self) = @_;
		1614
		1615	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1616
		1617	return if $self->players;
		1618	return if $self->isa ("ext::map_per_player");#d#
		1619
		1620	warn "resetting map ", $self->path;#d#
		1621
		1622	$self->in_memory (cf::MAP_SWAPPED);
		1623
		1624	# need to save uniques path
		1625	unless ($self->{deny_save}) {
		1626	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1627
		1628	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1629	if $uniq;
		1630	}
		1631
		1632	delete $cf::MAP{$self->path};
		1633
		1634	$self->clear;
		1635
		1636	$_->clear_links_to ($self) for values %cf::MAP;
		1637
		1638	$self->unlink_save;
		1639	$self->destroy;
		1640	}
		1641
		1642	my $nuke_counter = "aaaa";
		1643
		1644	sub nuke {
		1645	my ($self) = @_;
		1646
		1647	delete $cf::MAP{$self->path};
		1648
		1649	$self->unlink_save;
		1650
		1651	bless $self, "cf::map";
		1652	delete $self->{deny_reset};
		1653	$self->{deny_save} = 1;
		1654	$self->reset_timeout (1);
		1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1656
		1657	$cf::MAP{$self->path} = $self;
		1658
		1659	$self->reset; # polite request, might not happen
		1660	}
		1661
		1662	=item cf::map::unique_maps
		1663
		1664	Returns an arrayref of paths of all shared maps that have
		1665	instantiated unique items. May block.
		1666
		1667	=cut
		1668
		1669	sub unique_maps() {
		1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1671	or return;
		1672
		1673	my @paths;
		1674
		1675	for (@$files) {
		1676	utf8::decode $_;
		1677	next if /\.pst$/;
		1678	next unless /^$PATH_SEP/o;
		1679
		1680	push @paths, cf::map::normalise $_;
		1681	}
		1682
		1683	\@paths
		1684	}
		1685
		1686	package cf;
		1687
		1688	=back
		1689
		1690	=head3 cf::object
		1691
		1692	=cut
		1693
		1694	package cf::object;
821		1695
822	=over 4	1696	=over 4
823		1697
824	=item cf::player::exists $login	1698	=item $ob->inv_recursive
825		1699
826	Returns true when the given account exists.	1700	Returns the inventory of the object _and_ their inventories, recursively.
827		1701
828	=cut	1702	=cut
829		1703
830	sub cf::player::exists($) {	1704	sub inv_recursive_;
831	cf::player::find $_[0]	1705	sub inv_recursive_ {
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1706	map { $_, inv_recursive_ $_->inv } @_
833	}	1707	}
834		1708
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	1709	sub inv_recursive {
836		1710	inv_recursive_ inv $_[0]
837	Sends an ext reply to the player.
838
839	=cut
840
841	sub cf::player::ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;
843
844	$msg{msgid} = $id;
845
846	$self->send ("ext " . to_json \%msg);
847	}	1711	}
		1712
		1713	package cf;
848		1714
849	=back	1715	=back
850		1716
851	=head3 cf::object::player	1717	=head3 cf::object::player
852		1718
…		…
890	(ref $cf::CFG{"may_$access"}	1756	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1757	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	1758	: $cf::CFG{"may_$access"})
893	}	1759	}
894		1760
		1761	=item $player_object->enter_link
		1762
		1763	Freezes the player and moves him/her to a special map (C<{link}>).
		1764
		1765	The player should be reasonably safe there for short amounts of time. You
		1766	I<MUST> call C<leave_link> as soon as possible, though.
		1767
		1768	Will never block.
		1769
		1770	=item $player_object->leave_link ($map, $x, $y)
		1771
		1772	Moves the player out of the special C<{link}> map onto the specified
		1773	map. If the map is not valid (or omitted), the player will be moved back
		1774	to the location he/she was before the call to C<enter_link>, or, if that
		1775	fails, to the emergency map position.
		1776
		1777	Might block.
		1778
		1779	=cut
		1780
		1781	sub link_map {
		1782	unless ($LINK_MAP) {
		1783	$LINK_MAP = cf::map::find "{link}"
		1784	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1785	$LINK_MAP->load;
		1786	}
		1787
		1788	$LINK_MAP
		1789	}
		1790
		1791	sub cf::object::player::enter_link {
		1792	my ($self) = @_;
		1793
		1794	$self->deactivate_recursive;
		1795
		1796	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1797
		1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1799	if $self->map;
		1800
		1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1802	}
		1803
		1804	sub cf::object::player::leave_link {
		1805	my ($self, $map, $x, $y) = @_;
		1806
		1807	my $link_pos = delete $self->{_link_pos};
		1808
		1809	unless ($map) {
		1810	# restore original map position
		1811	($map, $x, $y) = @{ $link_pos || [] };
		1812	$map = cf::map::find $map;
		1813
		1814	unless ($map) {
		1815	($map, $x, $y) = @$EMERGENCY_POSITION;
		1816	$map = cf::map::find $map
		1817	or die "FATAL: cannot load emergency map\n";
		1818	}
		1819	}
		1820
		1821	($x, $y) = (-1, -1)
		1822	unless (defined $x) && (defined $y);
		1823
		1824	# use -1 or undef as default coordinates, not 0, 0
		1825	($x, $y) = ($map->enter_x, $map->enter_y)
		1826	if $x <=0 && $y <= 0;
		1827
		1828	$map->load;
		1829	$map->load_diag;
		1830
		1831	return unless $self->contr->active;
		1832	$self->activate_recursive;
		1833
		1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1835	$self->enter_map ($map, $x, $y);
		1836	}
		1837
		1838	cf::player->attach (
		1839	on_logout => sub {
		1840	my ($pl) = @_;
		1841
		1842	# abort map switching before logout
		1843	if ($pl->ob->{_link_pos}) {
		1844	cf::sync_job {
		1845	$pl->ob->leave_link
		1846	};
		1847	}
		1848	},
		1849	on_login => sub {
		1850	my ($pl) = @_;
		1851
		1852	# try to abort aborted map switching on player login :)
		1853	# should happen only on crashes
		1854	if ($pl->ob->{_link_pos}) {
		1855	$pl->ob->enter_link;
		1856	(async {
		1857	$pl->ob->reply (undef,
		1858	"There was an internal problem at your last logout, "
		1859	. "the server will try to bring you to your intended destination in a second.",
		1860	cf::NDI_RED);
		1861	# we need this sleep as the login has a concurrent enter_exit running
		1862	# and this sleep increases chances of the player not ending up in scorn
		1863	Coro::Timer::sleep 1;
		1864	$pl->ob->leave_link;
		1865	})->prio (2);
		1866	}
		1867	},
		1868	);
		1869
		1870	=item $player_object->goto ($path, $x, $y)
		1871
		1872	=cut
		1873
		1874	sub cf::object::player::goto {
		1875	my ($self, $path, $x, $y) = @_;
		1876
		1877	$self->enter_link;
		1878
		1879	(async {
		1880	my $map = eval {
		1881	my $map = cf::map::find $path;
		1882	$map = $map->customise_for ($self) if $map;
		1883	$map
		1884	} or
		1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1886
		1887	$self->leave_link ($map, $x, $y);
		1888	})->prio (1);
		1889	}
		1890
		1891	=item $player_object->enter_exit ($exit_object)
		1892
		1893	=cut
		1894
		1895	sub parse_random_map_params {
		1896	my ($spec) = @_;
		1897
		1898	my $rmp = { # defaults
		1899	xsize => (cf::rndm 15, 40),
		1900	ysize => (cf::rndm 15, 40),
		1901	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1902	#layout => string,
		1903	};
		1904
		1905	for (split /\n/, $spec) {
		1906	my ($k, $v) = split /\s+/, $_, 2;
		1907
		1908	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1909	}
		1910
		1911	$rmp
		1912	}
		1913
		1914	sub prepare_random_map {
		1915	my ($exit) = @_;
		1916
		1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1918
		1919	# all this does is basically replace the /! path by
		1920	# a new random map path (?random/...) with a seed
		1921	# that depends on the exit object
		1922
		1923	my $rmp = parse_random_map_params $exit->msg;
		1924
		1925	if ($exit->map) {
		1926	$rmp->{region} = $exit->region->name;
		1927	$rmp->{origin_map} = $exit->map->path;
		1928	$rmp->{origin_x} = $exit->x;
		1929	$rmp->{origin_y} = $exit->y;
		1930	}
		1931
		1932	$rmp->{random_seed} ||= $exit->random_seed;
		1933
		1934	my $data = cf::to_json $rmp;
		1935	my $md5 = Digest::MD5::md5_hex $data;
		1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1937
		1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1939	aio_write $fh, 0, (length $data), $data, 0;
		1940	undef $fh;
		1941	aio_rename "$meta~", $meta;
		1942
		1943	$exit->slaying ("?random/$md5");
		1944	$exit->msg (undef);
		1945	}
		1946	}
		1947
		1948	sub cf::object::player::enter_exit {
		1949	my ($self, $exit) = @_;
		1950
		1951	return unless $self->type == cf::PLAYER;
		1952
		1953	if ($exit->slaying eq "/!") {
		1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1955	cf::sync_job { prepare_random_map $exit };
		1956	}
		1957
		1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1959	my $hp = $exit->stats->hp;
		1960	my $sp = $exit->stats->sp;
		1961
		1962	$self->enter_link;
		1963
		1964	(async {
		1965	$self->deactivate_recursive; # just to be sure
		1966	unless (eval {
		1967	$self->goto ($slaying, $hp, $sp);
		1968
		1969	1;
		1970	}) {
		1971	$self->message ("Something went wrong deep within the crossfire server. "
		1972	. "I'll try to bring you back to the map you were before. "
		1973	. "Please report this to the dungeon master!",
		1974	cf::NDI_UNIQUE | cf::NDI_RED);
		1975
		1976	warn "ERROR in enter_exit: $@";
		1977	$self->leave_link;
		1978	}
		1979	})->prio (1);
		1980	}
		1981
895	=head3 cf::client	1982	=head3 cf::client
896		1983
897	=over 4	1984	=over 4
898		1985
899	=item $client->send_drawinfo ($text, $flags)	1986	=item $client->send_drawinfo ($text, $flags)
…		…
942	on_reply => sub {	2029	on_reply => sub {
943	my ($ns, $msg) = @_;	2030	my ($ns, $msg) = @_;
944		2031
945	# this weird shuffling is so that direct followup queries	2032	# this weird shuffling is so that direct followup queries
946	# get handled first	2033	# get handled first
947	my $queue = delete $ns->{query_queue};	2034	my $queue = delete $ns->{query_queue}
		2035	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		2036
949	(shift @$queue)->[1]->($msg);	2037	(shift @$queue)->[1]->($msg);
		2038	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
950		2039
951	push @{ $ns->{query_queue} }, @$queue;	2040	push @{ $ns->{query_queue} }, @$queue;
952		2041
953	if (@{ $ns->{query_queue} } == @$queue) {	2042	if (@{ $ns->{query_queue} } == @$queue) {
954	if (@$queue) {	2043	if (@$queue) {
…		…
958	}	2047	}
959	}	2048	}
960	},	2049	},
961	);	2050	);
962		2051
963	=item $client->coro (\&cb)	2052	=item $client->async (\&cb)
964		2053
965	Create a new coroutine, running the specified callback. The coroutine will	2054	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	2055	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	2056	or loss of connection).
968		2057
969	=cut	2058	=cut
970		2059
971	sub cf::client::coro {	2060	sub cf::client::async {
972	my ($self, $cb) = @_;	2061	my ($self, $cb) = @_;
973		2062
974	my $coro; $coro = async {	2063	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		2064
981	$coro->on_destroy (sub {	2065	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	2066	delete $self->{_coro}{$coro+0};
983	});	2067	});
984		2068
…		…
1120	The parameter C<$family> should best start with the name of the extension	2204	The parameter C<$family> should best start with the name of the extension
1121	using it, it should be unique.	2205	using it, it should be unique.
1122		2206
1123	=over 4	2207	=over 4
1124		2208
1125	=item $hashref = cf::db_get $family
1126
1127	Return a hashref for use by the extension C<$family>, which can be
1128	modified. After modifications, you have to call C<cf::db_dirty> or
1129	C<cf::db_sync>.
1130
1131	=item $value = cf::db_get $family => $key	2209	=item $value = cf::db_get $family => $key
1132		2210
1133	Returns a single value from the database	2211	Returns a single value from the database.
1134
1135	=item cf::db_put $family => $hashref
1136
1137	Stores the given family hashref into the database. Updates are delayed, if
1138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1139		2212
1140	=item cf::db_put $family => $key => $value	2213	=item cf::db_put $family => $key => $value
1141		2214
1142	Stores the given C<$value> in the family hash. Updates are delayed, if you	2215	Stores the given C<$value> in the family.
1143	want the data to be synced to disk immediately, use C<cf::db_sync>.
1144
1145	=item cf::db_dirty
1146
1147	Marks the database as dirty, to be updated at a later time.
1148
1149	=item cf::db_sync
1150
1151	Immediately write the database to disk I<if it is dirty>.
1152		2216
1153	=cut	2217	=cut
1154		2218
1155	our $DB;	2219	our $DB;
1156		2220
1157	{	2221	sub db_init {
		2222	unless ($DB) {
		2223	$DB = BDB::db_create $DB_ENV;
		2224
		2225	cf::sync_job {
		2226	eval {
		2227	$DB->set_flags (BDB::CHKSUM);
		2228
		2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2231	cf::cleanup "db_open(db): $!" if $!;
		2232	};
		2233	cf::cleanup "db_open(db): $@" if $@;
		2234	};
		2235
1158	my $path = cf::localdir . "/database.pst";	2236	my $path = cf::localdir . "/database.pst";
		2237	if (stat $path) {
		2238	cf::sync_job {
		2239	my $pst = Storable::retrieve $path;
1159		2240
1160	sub db_load() {	2241	cf::db_put (board => data => $pst->{board});
1161	warn "loading database $path\n";#d# remove later	2242	cf::db_put (guildrules => data => $pst->{guildrules});
1162	$DB = stat $path ? Storable::retrieve $path : { };	2243	cf::db_put (rent => balance => $pst->{rent}{balance});
1163	}	2244	BDB::db_env_txn_checkpoint $DB_ENV;
1164		2245
1165	my $pid;	2246	unlink $path;
1166
1167	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;
1174	cf::_exit 0 if defined $pid;
1175	}	2247	};
1176	}
1177
1178	my $dirty;
1179
1180	sub db_sync() {
1181	db_save if $dirty;
1182	undef $dirty;
1183	}
1184
1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1186	db_sync;
1187	});
1188
1189	sub db_dirty() {
1190	$dirty = 1;
1191	$idle->start;
1192	}
1193
1194	sub db_get($;$) {
1195	@_ >= 2
1196	? $DB->{$_[0]}{$_[1]}
1197	: ($DB->{$_[0]} ||= { })
1198	}
1199
1200	sub db_put($$;$) {
1201	if (@_ >= 3) {
1202	$DB->{$_[0]}{$_[1]} = $_[2];
1203	} else {
1204	$DB->{$_[0]} = $_[1];
1205	}
1206	db_dirty;
1207	}
1208
1209	cf::global->attach (
1210	prio => 10000,
1211	on_cleanup => sub {
1212	db_sync;
1213	},	2248	}
1214	);	2249	}
		2250	}
		2251
		2252	sub db_get($$) {
		2253	my $key = "$_[0]/$_[1]";
		2254
		2255	cf::sync_job {
		2256	BDB::db_get $DB, undef, $key, my $data;
		2257
		2258	$! ? ()
		2259	: Compress::LZF::sthaw $data
		2260	}
		2261	}
		2262
		2263	sub db_put($$$) {
		2264	BDB::dbreq_pri 4;
		2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1215	}	2266	}
1216		2267
1217	#############################################################################	2268	#############################################################################
1218	# the server's main()	2269	# the server's init and main functions
		2270
		2271	sub init_resources {
		2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2273	or die "unable to load regions file\n";#d#
		2274	}
1219		2275
1220	sub cfg_load {	2276	sub cfg_load {
1221	open my $fh, "<:utf8", cf::confdir . "/config"	2277	open my $fh, "<:utf8", cf::confdir . "/config"
1222	or return;	2278	or return;
1223		2279
1224	local $/;	2280	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	2281	*CFG = YAML::Syck::Load <$fh>;
		2282
		2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2284
		2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2287
		2288	if (exists $CFG{mlockall}) {
		2289	eval {
		2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2291	and die "WARNING: m(un)lockall failed: $!\n";
		2292	};
		2293	warn $@ if $@;
		2294	}
		2295	}
		2296
		2297	sub init {
		2298	init_resources;
1226	}	2299	}
1227		2300
1228	sub main {	2301	sub main {
		2302	# we must not ever block the main coroutine
		2303	local $Coro::idle = sub {
		2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2305	(async {
		2306	Event::one_event;
		2307	})->prio (Coro::PRIO_MAX);
		2308	};
		2309
1229	cfg_load;	2310	cfg_load;
1230	db_load;	2311	db_init;
1231	load_extensions;	2312	load_extensions;
		2313
		2314	$TICK_WATCHER->start;
1232	Event::loop;	2315	Event::loop;
1233	}	2316	}
1234		2317
1235	#############################################################################	2318	#############################################################################
1236	# initialisation	2319	# initialisation and cleanup
1237		2320
		2321	# install some emergency cleanup handlers
		2322	BEGIN {
		2323	for my $signal (qw(INT HUP TERM)) {
		2324	Event->signal (
		2325	reentrant => 0,
		2326	data => WF_AUTOCANCEL,
		2327	signal => $signal,
		2328	prio => 0,
		2329	cb => sub {
		2330	cf::cleanup "SIG$signal";
		2331	},
		2332	);
		2333	}
		2334	}
		2335
		2336	sub emergency_save() {
		2337	my $freeze_guard = cf::freeze_mainloop;
		2338
		2339	warn "enter emergency perl save\n";
		2340
		2341	cf::sync_job {
		2342	# use a peculiar iteration method to avoid tripping on perl
		2343	# refcount bugs in for. also avoids problems with players
		2344	# and maps saved/destroyed asynchronously.
		2345	warn "begin emergency player save\n";
		2346	for my $login (keys %cf::PLAYER) {
		2347	my $pl = $cf::PLAYER{$login} or next;
		2348	$pl->valid or next;
		2349	$pl->save;
		2350	}
		2351	warn "end emergency player save\n";
		2352
		2353	warn "begin emergency map save\n";
		2354	for my $path (keys %cf::MAP) {
		2355	my $map = $cf::MAP{$path} or next;
		2356	$map->valid or next;
		2357	$map->save;
		2358	}
		2359	warn "end emergency map save\n";
		2360
		2361	warn "begin emergency database checkpoint\n";
		2362	BDB::db_env_txn_checkpoint $DB_ENV;
		2363	warn "end emergency database checkpoint\n";
		2364	};
		2365
		2366	warn "leave emergency perl save\n";
		2367	}
		2368
		2369	sub post_cleanup {
		2370	my ($make_core) = @_;
		2371
		2372	warn Carp::longmess "post_cleanup backtrace"
		2373	if $make_core;
		2374	}
		2375
1238	sub _perl_reload() {	2376	sub reload() {
		2377	# can/must only be called in main
		2378	if ($Coro::current != $Coro::main) {
		2379	warn "can only reload from main coroutine";
		2380	return;
		2381	}
		2382
1239	warn "reloading...";	2383	warn "reloading...";
1240		2384
1241	eval {	2385	warn "entering sync_job";
1242	local $FREEZE = 1;
1243		2386
		2387	cf::sync_job {
		2388	cf::write_runtime; # external watchdog should not bark
1244	cf::emergency_save;	2389	cf::emergency_save;
		2390	cf::write_runtime; # external watchdog should not bark
1245		2391
1246	# cancel all watchers	2392	warn "syncing database to disk";
		2393	BDB::db_env_txn_checkpoint $DB_ENV;
		2394
		2395	# if anything goes wrong in here, we should simply crash as we already saved
		2396
		2397	warn "cancelling all WF_AUTOCANCEL watchers";
1247	for (Event::all_watchers) {	2398	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	2399	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	2400	}
1250		2401
		2402	warn "flushing outstanding aio requests";
		2403	for (;;) {
		2404	BDB::flush;
		2405	IO::AIO::flush;
		2406	Coro::cede;
		2407	last unless IO::AIO::nreqs || BDB::nreqs;
		2408	warn "iterate...";
		2409	}
		2410
1251	# cancel all extension coros	2411	warn "cancelling all extension coros";
1252	$_->cancel for values %EXT_CORO;	2412	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	2413	%EXT_CORO = ();
1254		2414
1255	# unload all extensions	2415	warn "removing commands";
1256	for (@exts) {	2416	%COMMAND = ();
		2417
		2418	warn "removing ext commands";
		2419	%EXTCMD = ();
		2420
		2421	warn "unloading/nuking all extensions";
		2422	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	2423	warn "... unloading $pkg";
1258	unload_extension $_;	2424
		2425	if (my $cb = $pkg->can ("unload")) {
		2426	eval {
		2427	$cb->($pkg);
		2428	1
		2429	} or warn "$pkg unloaded, but with errors: $@";
1259	}	2430	}
1260		2431
		2432	warn "... nuking $pkg";
		2433	Symbol::delete_package $pkg;
		2434	}
		2435
1261	# unload all modules loaded from $LIBDIR	2436	warn "unloading all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	2437	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		2439
1265	warn "removing <$k>";	2440	warn "... unloading $k";
1266	delete $INC{$k};	2441	delete $INC{$k};
1267		2442
1268	$k =~ s/\.pm$//;	2443	$k =~ s/\.pm$//;
1269	$k =~ s/\//::/g;	2444	$k =~ s/\//::/g;
1270		2445
…		…
1273	}	2448	}
1274		2449
1275	Symbol::delete_package $k;	2450	Symbol::delete_package $k;
1276	}	2451	}
1277		2452
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	2453	warn "getting rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	2454	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		2456
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	2457	warn "unloading cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	2458	delete $INC{"cf.pm"};
1291		2459
1292	# don't, removes xs symbols, too,	2460	# don't, removes xs symbols, too,
1293	# and global variables created in xs	2461	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	2462	#Symbol::delete_package __PACKAGE__;
1295		2463
1296	# reload cf.pm	2464	warn "unload completed, starting to reload now";
		2465
1297	warn "reloading cf.pm";	2466	warn "reloading cf.pm";
1298	require cf;	2467	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		2469
1301	# load config and database again	2470	warn "loading config and database again";
1302	cf::cfg_load;	2471	cf::cfg_load;
1303	cf::db_load;
1304		2472
1305	# load extensions
1306	warn "load extensions";	2473	warn "loading extensions";
1307	cf::load_extensions;	2474	cf::load_extensions;
1308		2475
1309	# reattach attachments to objects	2476	warn "reattaching attachments to objects/players";
1310	warn "reattach";
1311	_global_reattach;	2477	_global_reattach;
		2478	warn "reattaching attachments to maps";
		2479	reattach $_ for values %MAP;
		2480
		2481	warn "loading reloadable resources";
		2482	init_resources;
		2483
		2484	warn "leaving sync_job";
		2485
		2486	1
		2487	} or do {
		2488	warn $@;
		2489	warn "error while reloading, exiting.";
		2490	exit 1;
1312	};	2491	};
1313	warn $@ if $@;
1314		2492
1315	warn "reloaded";	2493	warn "reloaded";
1316	};	2494	};
1317		2495
1318	sub perl_reload() {	2496	our $RELOAD_WATCHER; # used only during reload
1319	_perl_reload;
1320	}
1321		2497
1322	register "<global>", __PACKAGE__;
1323
1324	register_command "perl-reload" => sub {	2498	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	2499	my ($who, $arg) = @_;
1326		2500
1327	if ($who->flag (FLAG_WIZ)) {	2501	if ($who->flag (FLAG_WIZ)) {
1328	$who->message ("reloading...");	2502	$who->message ("reloading server.");
1329	_perl_reload;	2503
		2504	# doing reload synchronously and two reloads happen back-to-back,
		2505	# coro crashes during coro_state_free->destroy here.
		2506
		2507	$RELOAD_WATCHER ||= Event->timer (
		2508	reentrant => 0,
		2509	after => 0,
		2510	data => WF_AUTOCANCEL,
		2511	cb => sub {
		2512	reload;
		2513	undef $RELOAD_WATCHER;
		2514	},
		2515	);
1330	}	2516	}
1331	};	2517	};
1332		2518
1333	unshift @INC, $LIBDIR;	2519	unshift @INC, $LIBDIR;
1334		2520
		2521	my $bug_warning = 0;
		2522
1335	$TICK_WATCHER = Event->timer (	2523	$TICK_WATCHER = Event->timer (
		2524	reentrant => 0,
		2525	parked => 1,
1336	prio => 0,	2526	prio => 0,
1337	at => $NEXT_TICK || $TICK,	2527	at => $NEXT_TICK || $TICK,
1338	data => WF_AUTOCANCEL,	2528	data => WF_AUTOCANCEL,
1339	cb => sub {	2529	cb => sub {
1340	unless ($FREEZE) {	2530	if ($Coro::current != $Coro::main) {
		2531	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2532	unless ++$bug_warning > 10;
		2533	return;
		2534	}
		2535
		2536	$NOW = Event::time;
		2537
1341	cf::server_tick; # one server iteration	2538	cf::server_tick; # one server iteration
1342	$RUNTIME += $TICK;	2539	$RUNTIME += $TICK;
1343	}
1344
1345	$NEXT_TICK += $TICK;	2540	$NEXT_TICK += $TICK;
		2541
		2542	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2543	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2544	Coro::async_pool {
		2545	write_runtime
		2546	or warn "ERROR: unable to write runtime file: $!";
		2547	};
		2548	}
		2549
		2550	$WAIT_FOR_TICK->broadcast;
		2551	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2552
		2553	# my $AFTER = Event::time;
		2554	# warn $AFTER - $NOW;#d#
1346		2555
1347	# if we are delayed by four ticks or more, skip them all	2556	# if we are delayed by four ticks or more, skip them all
1348	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1349		2558
1350	$TICK_WATCHER->at ($NEXT_TICK);	2559	$TICK_WATCHER->at ($NEXT_TICK);
1351	$TICK_WATCHER->start;	2560	$TICK_WATCHER->start;
1352	},	2561	},
1353	);	2562	);
1354		2563
		2564	{
		2565	BDB::max_poll_time $TICK * 0.1;
		2566	$BDB_POLL_WATCHER = Event->io (
		2567	reentrant => 0,
		2568	fd => BDB::poll_fileno,
		2569	poll => 'r',
		2570	prio => 0,
		2571	data => WF_AUTOCANCEL,
		2572	cb => \&BDB::poll_cb,
		2573	);
		2574	BDB::min_parallel 8;
		2575
		2576	BDB::set_sync_prepare {
		2577	my $status;
		2578	my $current = $Coro::current;
		2579	(
		2580	sub {
		2581	$status = $!;
		2582	$current->ready; undef $current;
		2583	},
		2584	sub {
		2585	Coro::schedule while defined $current;
		2586	$! = $status;
		2587	},
		2588	)
		2589	};
		2590
		2591	unless ($DB_ENV) {
		2592	$DB_ENV = BDB::db_env_create;
		2593
		2594	cf::sync_job {
		2595	eval {
		2596	BDB::db_env_open
		2597	$DB_ENV,
		2598	$BDB_ENV_DIR,
		2599	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2600	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2601	0666;
		2602
		2603	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2604
		2605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2606	$DB_ENV->set_lk_detect;
		2607	};
		2608
		2609	cf::cleanup "db_env_open(db): $@" if $@;
		2610	};
		2611	}
		2612	}
		2613
		2614	{
		2615	IO::AIO::min_parallel 8;
		2616
		2617	undef $Coro::AIO::WATCHER;
1355	IO::AIO::max_poll_time $TICK * 0.2;	2618	IO::AIO::max_poll_time $TICK * 0.1;
1356		2619	$AIO_POLL_WATCHER = Event->io (
1357	Event->io (fd => IO::AIO::poll_fileno,	2620	reentrant => 0,
1358	poll => 'r',
1359	prio => 5,
1360	data => WF_AUTOCANCEL,	2621	data => WF_AUTOCANCEL,
		2622	fd => IO::AIO::poll_fileno,
		2623	poll => 'r',
		2624	prio => 6,
1361	cb => \&IO::AIO::poll_cb);	2625	cb => \&IO::AIO::poll_cb,
		2626	);
		2627	}
1362		2628
1363	# we must not ever block the main coroutine	2629	END { cf::emergency_save }
1364	$Coro::idle = sub {
1365	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1366	warn "FATAL: Coro::idle was called, major BUG\n";
1367	(Coro::unblock_sub {
1368	Event::one_event;
1369	})->();
1370	};
1371		2630
1372	1	2631	1
1373		2632

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