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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.210 by root, Mon Feb 12 01:32:49 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
20	use Fcntl;	23	use Fcntl;
21	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
22	use YAML::Syck ();	25	use YAML::Syck ();
23	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
24		30
25	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
26		34
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
29		37
30	$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
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		39
34	our %COMMAND = ();	40	our %COMMAND = ();
35	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
37		47
38	our @EVENT;	48	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
40		50
41	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	55	our $NEXT_TICK;
44	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;
45		61
46	our %CFG;	62	our %CFG;
47		63
48	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	65	our $RUNTIME;
50		66
		67	our %PLAYER; # all users
51	our %MAP; # all maps	68	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
53	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
54		78
55	binmode STDOUT;	79	binmode STDOUT;
56	binmode STDERR;	80	binmode STDERR;
57		81
58	# read virtual server time, if available	82	# read virtual server time, if available
…		…
64		88
65	mkdir cf::localdir;	89	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
69		95
70	our %EXT_CORO;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
71		99
72	#############################################################################	100	#############################################################################
73		101
74	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
75		103
…		…
99		127
100	=item %cf::CFG	128	=item %cf::CFG
101		129
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	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.
104		139
105	=back	140	=back
106		141
107	=cut	142	=cut
108		143
…		…
112	utf8::encode $msg;	147	utf8::encode $msg;
113		148
114	$msg .= "\n"	149	$msg .= "\n"
115	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
116		151
117	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
118	};	153	};
119	}	154	}
120		155
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		175
141	$Event::DIED = sub {	176	$Event::DIED = sub {
142	warn "error in event callback: @_";	177	warn "error in event callback: @_";
143	};	178	};
144		179
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
150		181
151	=over 4	182	=over 4
152		183
		184	=item dumpval $ref
		185
153	=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	}
154		206
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		208
157	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
158		210
…		…
174	sub to_json($) {	226	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
177	}	229	}
178		230
179	# main coro must never ever "block" except in Event	231	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	232
181	# and waiting in Event while the server is otherwise frozen	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	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
		294
		295	=item cf::sync_job { BLOCK }
		296
		297	The design of crossfire+ requires that the main coro ($Coro::main) is
		298	always able to handle events or runnable, as crossfire+ is only partly
		299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		300
		301	If it must be done, put the blocking parts into C<sync_job>. This will run
		302	the given BLOCK in another coroutine while waiting for the result. The
		303	server will be frozen during this time, so the block should either finish
		304	fast or be very important.
		305
		306	=cut
		307
182	sub sync_job(&) {	308	sub sync_job(&) {
183	my ($job) = @_;	309	my ($job) = @_;
184		310
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
		315	# TODO: use suspend/resume instead
		316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
		327
198	while ($busy) {	328	while ($busy) {
199	Coro::cede_notself;	329	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	330	}
		331
		332	wantarray ? @res : $res[0]
202	} else {	333	} else {
203	$coro->join;	334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
204	}	337	}
205
206	wantarray ? @res : $res[0]
207	}	338	}
208		339
209	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
210		341
211	Creates and returns a new coro. This coro is automcatially being canceled	342	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
213		344
214	=cut	345	=cut
215		346
216	sub coro(&) {	347	sub async_ext(&) {
217	my $cb = shift;	348	my $cb = shift;
218		349
219	my $coro; $coro = async {	350	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		351
226	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
228	});	354	});
229	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
230		356
231	$coro	357	$coro
		358	}
		359
		360	sub write_runtime {
		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
232	}	384	}
233		385
234	=back	386	=back
235		387
236	=cut	388	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	520	our @CB_MAP = ();
369		521
370	my %attachment;	522	my %attachment;
371		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
372	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
374		532
375	use sort 'stable';	533	use sort 'stable';
376		534
…		…
547	# object support	705	# object support
548		706
549	sub reattach {	707	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		712
553	my $registry = $obj->registry;	713	my $registry = $obj->registry;
554		714
555	@$registry = ();	715	@$registry = ();
556		716
…		…
603	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
604		764
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	769	close $fh;
610		770
611	if (@$objs) {	771	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	777	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
619	}	779	}
620	} else {	780	} else {
621	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
627	}	787	}
628	} else {	788	} else {
629	aio_unlink $filename;	789	aio_unlink $filename;
630	aio_unlink "$filename.pst";	790	aio_unlink "$filename.pst";
631	}	791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
632	}	798	}
633	}	799	}
634		800
635	sub object_freezer_as_string {	801	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
642		808
643	sub object_thawer_load {	809	sub object_thawer_load {
644	my ($filename) = @_;	810	my ($filename) = @_;
645		811
646	my ($data, $av);	812	my ($data, $av);
		813
		814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
647		816
648	(aio_load $filename, $data) >= 0	817	(aio_load $filename, $data) >= 0
649	or return;	818	or return;
650		819
651	unless (aio_stat "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	821	(aio_load "$filename.pst", $av) >= 0
653	or return;	822	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	823	$av = eval { (Storable::thaw $av)->{objs} };
655	}	824	}
656		825
		826	warn sprintf "loading %s (%d)\n",
		827	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	828	return ($data, $av);
658	}	829	}
659		830
660	#############################################################################	831	#############################################################################
661	# command handling &c	832	# command handling &c
…		…
686	=cut	857	=cut
687		858
688	sub register_extcmd {	859	sub register_extcmd {
689	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
690		861
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
695	}	863	}
696		864
697	cf::player->attach (	865	cf::player->attach (
698	on_command => sub {	866	on_command => sub {
699	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
712		880
713	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
714		882
715	if (ref $msg) {	883	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	887	}
720	}	888	}
721	} else {	889	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		892
725	cf::override;	893	cf::override;
726	},	894	},
727	);	895	);
728		896
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	897	sub load_extension {
736	my ($path) = @_;	898	my ($path) = @_;
737		899
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	901	my $base = $1;
740	my $pkg = $1;	902	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
743		905
744	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
745		907
746	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
747	or die "$path: $!";	909	or die "$path: $!";
748		910
749	my $source =	911	my $source =
750	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
753	. "\n};\n1";	915	. "\n};\n1";
754		916
755	eval $source	917	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	919	: "extension disabled.\n";
758		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	921	warn $@;
760	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
761		923	exit 1;
762	# no strict 'refs';	924	}
763	# @{"$pkg\::ISA"} = ext::;	925	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	926	}
778		927
779	# remove commands	928	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	929	}
804		930
805	sub load_extensions {	931	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	933	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
812	}	938	}
813	}	939	}
814		940
815	#############################################################################	941	#############################################################################
816	# load/save/clean perl data associated with a map
817		942
818	*cf::mapsupport::on_clean = sub {	943	=head2 CORE EXTENSIONS
		944
		945	Functions and methods that extend core crossfire objects.
		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
		953	=head3 cf::player
		954
		955	=over 4
		956
		957	=item cf::player::find $login
		958
		959	Returns the given player object, loading it if necessary (might block).
		960
		961	=cut
		962
		963	sub playerdir($) {
		964	cf::localdir
		965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
		1111	}
		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . cf::to_json \%msg);
		1125	}
		1126
		1127	package cf;
		1128
		1129	=back
		1130
		1131
		1132	=head3 cf::map
		1133
		1134	=over 4
		1135
		1136	=cut
		1137
		1138	package cf::map;
		1139
		1140	use Fcntl;
		1141	use Coro::AIO;
		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
		1147	our $MAX_RESET = 3600;
		1148	our $DEFAULT_RESET = 3000;
		1149
		1150	sub generate_random_map {
		1151	my ($self, $rmp) = @_;
		1152	# mit "rum" bekleckern, nicht
		1153	$self->_create_random_map (
		1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1157	$rmp->{exit_on_final_map},
		1158	$rmp->{xsize}, $rmp->{ysize},
		1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1295	}
		1296
		1297	# and all this just because we cannot iterate over
		1298	# all maps in C++...
		1299	sub change_all_map_light {
		1300	my ($change) = @_;
		1301
		1302	$_->change_map_light ($change)
		1303	for grep $_->outdoor, values %cf::MAP;
		1304	}
		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
819	my ($map) = @_;	1475	my ($map) = @_;
820		1476
821	my $path = $map->tmpname;	1477	my @diag; # diagonal neighbours
822	defined $path or return;
823		1478
824	unlink "$path.pst";	1479	for (0 .. 3) {
825	};	1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
826		1485
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
828		1489
829	#############################################################################	1490	for (@diag) {
830	# load/save perl data associated with player->ob objects	1491	my $neigh = find @$_
831		1492	or next;
832	sub all_objects(@) {	1493	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1494	}
834	}	1495	}
835		1496
836	# TODO: compatibility cruft, remove when no longer needed	1497	sub find_sync {
837	cf::player->attach (	1498	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1499
841	for my $o (all_objects $pl->ob) {	1500	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1501	}
843	$o->set_ob_key_value ("_perl_data");
844		1502
845	%$o = %{ Storable::thaw pack "H*", $value };	1503	sub do_load_sync {
		1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
846	}	1530	}
847	}	1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
		1539	sub save {
		1540	my ($self) = @_;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
		1561	if ($uniq) {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1564	} else {
		1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1566	}
849	);	1567	}
850		1568
851	#############################################################################	1569	sub swap_out {
		1570	my ($self) = @_;
852		1571
853	=head2 CORE EXTENSIONS	1572	# save first because save cedes
		1573	$self->save;
854		1574
855	Functions and methods that extend core crossfire objects.	1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1576
857	=head3 cf::player	1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	$self->in_memory (cf::MAP_SWAPPED);
		1615
		1616	# need to save uniques path
		1617	unless ($self->{deny_save}) {
		1618	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1619
		1620	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1621	if $uniq;
		1622	}
		1623
		1624	delete $cf::MAP{$self->path};
		1625
		1626	$self->clear;
		1627
		1628	$_->clear_links_to ($self) for values %cf::MAP;
		1629
		1630	$self->unlink_save;
		1631	$self->destroy;
		1632	}
		1633
		1634	my $nuke_counter = "aaaa";
		1635
		1636	sub nuke {
		1637	my ($self) = @_;
		1638
		1639	delete $cf::MAP{$self->path};
		1640
		1641	$self->unlink_save;
		1642
		1643	bless $self, "cf::map";
		1644	delete $self->{deny_reset};
		1645	$self->{deny_save} = 1;
		1646	$self->reset_timeout (1);
		1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1648
		1649	$cf::MAP{$self->path} = $self;
		1650
		1651	$self->reset; # polite request, might not happen
		1652	}
		1653
		1654	=item cf::map::unique_maps
		1655
		1656	Returns an arrayref of paths of all shared maps that have
		1657	instantiated unique items. May block.
		1658
		1659	=cut
		1660
		1661	sub unique_maps() {
		1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1663	or return;
		1664
		1665	my @paths;
		1666
		1667	for (@$files) {
		1668	utf8::decode $_;
		1669	next if /\.pst$/;
		1670	next unless /^$PATH_SEP/o;
		1671
		1672	push @paths, cf::map::normalise $_;
		1673	}
		1674
		1675	\@paths
		1676	}
		1677
		1678	package cf;
		1679
		1680	=back
		1681
		1682	=head3 cf::object
		1683
		1684	=cut
		1685
		1686	package cf::object;
858		1687
859	=over 4	1688	=over 4
860		1689
861	=item cf::player::exists $login	1690	=item $ob->inv_recursive
862		1691
863	Returns true when the given account exists.	1692	Returns the inventory of the object _and_ their inventories, recursively.
864		1693
865	=cut	1694	=cut
866		1695
867	sub cf::player::exists($) {	1696	sub inv_recursive_;
868	cf::player::find $_[0]	1697	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1698	map { $_, inv_recursive_ $_->inv } @_
870	}	1699	}
871		1700
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1701	sub inv_recursive {
873		1702	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1703	}
		1704
		1705	package cf;
885		1706
886	=back	1707	=back
887		1708
888	=head3 cf::object::player	1709	=head3 cf::object::player
889		1710
…		…
927	(ref $cf::CFG{"may_$access"}	1748	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1749	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1750	: $cf::CFG{"may_$access"})
930	}	1751	}
931		1752
		1753	=item $player_object->enter_link
		1754
		1755	Freezes the player and moves him/her to a special map (C<{link}>).
		1756
		1757	The player should be reasonably safe there for short amounts of time. You
		1758	I<MUST> call C<leave_link> as soon as possible, though.
		1759
		1760	Will never block.
		1761
		1762	=item $player_object->leave_link ($map, $x, $y)
		1763
		1764	Moves the player out of the special C<{link}> map onto the specified
		1765	map. If the map is not valid (or omitted), the player will be moved back
		1766	to the location he/she was before the call to C<enter_link>, or, if that
		1767	fails, to the emergency map position.
		1768
		1769	Might block.
		1770
		1771	=cut
		1772
		1773	sub link_map {
		1774	unless ($LINK_MAP) {
		1775	$LINK_MAP = cf::map::find "{link}"
		1776	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1777	$LINK_MAP->load;
		1778	}
		1779
		1780	$LINK_MAP
		1781	}
		1782
		1783	sub cf::object::player::enter_link {
		1784	my ($self) = @_;
		1785
		1786	$self->deactivate_recursive;
		1787
		1788	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1789
		1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1791	if $self->map;
		1792
		1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1794	}
		1795
		1796	sub cf::object::player::leave_link {
		1797	my ($self, $map, $x, $y) = @_;
		1798
		1799	my $link_pos = delete $self->{_link_pos};
		1800
		1801	unless ($map) {
		1802	# restore original map position
		1803	($map, $x, $y) = @{ $link_pos || [] };
		1804	$map = cf::map::find $map;
		1805
		1806	unless ($map) {
		1807	($map, $x, $y) = @$EMERGENCY_POSITION;
		1808	$map = cf::map::find $map
		1809	or die "FATAL: cannot load emergency map\n";
		1810	}
		1811	}
		1812
		1813	($x, $y) = (-1, -1)
		1814	unless (defined $x) && (defined $y);
		1815
		1816	# use -1 or undef as default coordinates, not 0, 0
		1817	($x, $y) = ($map->enter_x, $map->enter_y)
		1818	if $x <=0 && $y <= 0;
		1819
		1820	$map->load;
		1821	$map->load_diag;
		1822
		1823	return unless $self->contr->active;
		1824	$self->activate_recursive;
		1825	$self->enter_map ($map, $x, $y);
		1826	}
		1827
		1828	cf::player->attach (
		1829	on_logout => sub {
		1830	my ($pl) = @_;
		1831
		1832	# abort map switching before logout
		1833	if ($pl->ob->{_link_pos}) {
		1834	cf::sync_job {
		1835	$pl->ob->leave_link
		1836	};
		1837	}
		1838	},
		1839	on_login => sub {
		1840	my ($pl) = @_;
		1841
		1842	# try to abort aborted map switching on player login :)
		1843	# should happen only on crashes
		1844	if ($pl->ob->{_link_pos}) {
		1845	$pl->ob->enter_link;
		1846	(async {
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	$pl->ob->reply (undef,
		1850	"There was an internal problem at your last logout, "
		1851	. "the server will try to bring you to your intended destination in a second.",
		1852	cf::NDI_RED);
		1853	Coro::Timer::sleep 1;
		1854	$pl->ob->leave_link;
		1855	})->prio (2);
		1856	}
		1857	},
		1858	);
		1859
		1860	=item $player_object->goto ($path, $x, $y)
		1861
		1862	=cut
		1863
		1864	sub cf::object::player::goto {
		1865	my ($self, $path, $x, $y) = @_;
		1866
		1867	$self->enter_link;
		1868
		1869	(async {
		1870	my $map = eval {
		1871	my $map = cf::map::find $path;
		1872	$map = $map->customise_for ($self) if $map;
		1873	$map
		1874	} or
		1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1876
		1877	$self->leave_link ($map, $x, $y);
		1878	})->prio (1);
		1879	}
		1880
		1881	=item $player_object->enter_exit ($exit_object)
		1882
		1883	=cut
		1884
		1885	sub parse_random_map_params {
		1886	my ($spec) = @_;
		1887
		1888	my $rmp = { # defaults
		1889	xsize => (cf::rndm 15, 40),
		1890	ysize => (cf::rndm 15, 40),
		1891	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1892	#layout => string,
		1893	};
		1894
		1895	for (split /\n/, $spec) {
		1896	my ($k, $v) = split /\s+/, $_, 2;
		1897
		1898	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1899	}
		1900
		1901	$rmp
		1902	}
		1903
		1904	sub prepare_random_map {
		1905	my ($exit) = @_;
		1906
		1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1908
		1909	# all this does is basically replace the /! path by
		1910	# a new random map path (?random/...) with a seed
		1911	# that depends on the exit object
		1912
		1913	my $rmp = parse_random_map_params $exit->msg;
		1914
		1915	if ($exit->map) {
		1916	$rmp->{region} = $exit->region->name;
		1917	$rmp->{origin_map} = $exit->map->path;
		1918	$rmp->{origin_x} = $exit->x;
		1919	$rmp->{origin_y} = $exit->y;
		1920	}
		1921
		1922	$rmp->{random_seed} ||= $exit->random_seed;
		1923
		1924	my $data = cf::to_json $rmp;
		1925	my $md5 = Digest::MD5::md5_hex $data;
		1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1927
		1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1929	aio_write $fh, 0, (length $data), $data, 0;
		1930	undef $fh;
		1931	aio_rename "$meta~", $meta;
		1932
		1933	$exit->slaying ("?random/$md5");
		1934	$exit->msg (undef);
		1935	}
		1936	}
		1937
		1938	sub cf::object::player::enter_exit {
		1939	my ($self, $exit) = @_;
		1940
		1941	return unless $self->type == cf::PLAYER;
		1942
		1943	if ($exit->slaying eq "/!") {
		1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1945	cf::sync_job { prepare_random_map $exit };
		1946	}
		1947
		1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1949	my $hp = $exit->stats->hp;
		1950	my $sp = $exit->stats->sp;
		1951
		1952	$self->enter_link;
		1953
		1954	(async {
		1955	$self->deactivate_recursive; # just to be sure
		1956	unless (eval {
		1957	$self->goto ($slaying, $hp, $sp);
		1958
		1959	1;
		1960	}) {
		1961	$self->message ("Something went wrong deep within the crossfire server. "
		1962	. "I'll try to bring you back to the map you were before. "
		1963	. "Please report this to the dungeon master!",
		1964	cf::NDI_UNIQUE | cf::NDI_RED);
		1965
		1966	warn "ERROR in enter_exit: $@";
		1967	$self->leave_link;
		1968	}
		1969	})->prio (1);
		1970	}
		1971
932	=head3 cf::client	1972	=head3 cf::client
933		1973
934	=over 4	1974	=over 4
935		1975
936	=item $client->send_drawinfo ($text, $flags)	1976	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	2019	on_reply => sub {
980	my ($ns, $msg) = @_;	2020	my ($ns, $msg) = @_;
981		2021
982	# this weird shuffling is so that direct followup queries	2022	# this weird shuffling is so that direct followup queries
983	# get handled first	2023	# get handled first
984	my $queue = delete $ns->{query_queue};	2024	my $queue = delete $ns->{query_queue}
		2025	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2026
986	(shift @$queue)->[1]->($msg);	2027	(shift @$queue)->[1]->($msg);
		2028	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2029
988	push @{ $ns->{query_queue} }, @$queue;	2030	push @{ $ns->{query_queue} }, @$queue;
989		2031
990	if (@{ $ns->{query_queue} } == @$queue) {	2032	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2033	if (@$queue) {
…		…
995	}	2037	}
996	}	2038	}
997	},	2039	},
998	);	2040	);
999		2041
1000	=item $client->coro (\&cb)	2042	=item $client->async (\&cb)
1001		2043
1002	Create a new coroutine, running the specified callback. The coroutine will	2044	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2045	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2046	or loss of connection).
1005		2047
1006	=cut	2048	=cut
1007		2049
1008	sub cf::client::coro {	2050	sub cf::client::async {
1009	my ($self, $cb) = @_;	2051	my ($self, $cb) = @_;
1010		2052
1011	my $coro; $coro = async {	2053	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2054
1018	$coro->on_destroy (sub {	2055	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2056	delete $self->{_coro}{$coro+0};
1020	});	2057	});
1021		2058
…		…
1157	The parameter C<$family> should best start with the name of the extension	2194	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2195	using it, it should be unique.
1159		2196
1160	=over 4	2197	=over 4
1161		2198
1162	=item $hashref = cf::db_get $family
1163
1164	Return a hashref for use by the extension C<$family>, which can be
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167
1168	=item $value = cf::db_get $family => $key	2199	=item $value = cf::db_get $family => $key
1169		2200
1170	Returns a single value from the database	2201	Returns a single value from the database.
1171
1172	=item cf::db_put $family => $hashref
1173
1174	Stores the given family hashref into the database. Updates are delayed, if
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1176		2202
1177	=item cf::db_put $family => $key => $value	2203	=item cf::db_put $family => $key => $value
1178		2204
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2205	Stores the given C<$value> in the family.
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.
1181
1182	=item cf::db_dirty
1183
1184	Marks the database as dirty, to be updated at a later time.
1185
1186	=item cf::db_sync
1187
1188	Immediately write the database to disk I<if it is dirty>.
1189		2206
1190	=cut	2207	=cut
1191		2208
1192	our $DB;	2209	our $DB;
1193		2210
1194	{	2211	sub db_init {
		2212	unless ($DB) {
		2213	$DB = BDB::db_create $DB_ENV;
		2214
		2215	cf::sync_job {
		2216	eval {
		2217	$DB->set_flags (BDB::CHKSUM);
		2218
		2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2221	cf::cleanup "db_open(db): $!" if $!;
		2222	};
		2223	cf::cleanup "db_open(db): $@" if $@;
		2224	};
		2225
1195	my $path = cf::localdir . "/database.pst";	2226	my $path = cf::localdir . "/database.pst";
		2227	if (stat $path) {
		2228	cf::sync_job {
		2229	my $pst = Storable::retrieve $path;
1196		2230
1197	sub db_load() {	2231	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2232	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2233	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2234	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2235
1202	my $pid;	2236	unlink $path;
1203
1204	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}	2237	};
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {
1241	$DB->{$_[0]} = $_[1];
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	2238	}
1251	);	2239	}
		2240	}
		2241
		2242	sub db_get($$) {
		2243	my $key = "$_[0]/$_[1]";
		2244
		2245	cf::sync_job {
		2246	BDB::db_get $DB, undef, $key, my $data;
		2247
		2248	$! ? ()
		2249	: Compress::LZF::sthaw $data
		2250	}
		2251	}
		2252
		2253	sub db_put($$$) {
		2254	BDB::dbreq_pri 4;
		2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1252	}	2256	}
1253		2257
1254	#############################################################################	2258	#############################################################################
1255	# the server's main()	2259	# the server's init and main functions
		2260
		2261	sub load_resources {
		2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2263	or die "unable to load regions file\n";#d#
		2264	}
1256		2265
1257	sub cfg_load {	2266	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2267	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2268	or return;
1260		2269
1261	local $/;	2270	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2271	*CFG = YAML::Syck::Load <$fh>;
		2272
		2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2274
		2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2277
		2278	if (exists $CFG{mlockall}) {
		2279	eval {
		2280	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2281	and die "WARNING: m(un)lockall failed: $!\n";
		2282	};
		2283	warn $@ if $@;
		2284	}
		2285	}
		2286
		2287	sub init {
		2288	load_resources;
1263	}	2289	}
1264		2290
1265	sub main {	2291	sub main {
		2292	# we must not ever block the main coroutine
		2293	local $Coro::idle = sub {
		2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2295	(async {
		2296	Event::one_event;
		2297	})->prio (Coro::PRIO_MAX);
		2298	};
		2299
1266	cfg_load;	2300	cfg_load;
1267	db_load;	2301	db_init;
1268	load_extensions;	2302	load_extensions;
		2303
		2304	$TICK_WATCHER->start;
1269	Event::loop;	2305	Event::loop;
1270	}	2306	}
1271		2307
1272	#############################################################################	2308	#############################################################################
1273	# initialisation	2309	# initialisation and cleanup
1274		2310
		2311	# install some emergency cleanup handlers
		2312	BEGIN {
		2313	for my $signal (qw(INT HUP TERM)) {
		2314	Event->signal (
		2315	reentrant => 0,
		2316	data => WF_AUTOCANCEL,
		2317	signal => $signal,
		2318	prio => 0,
		2319	cb => sub {
		2320	cf::cleanup "SIG$signal";
		2321	},
		2322	);
		2323	}
		2324	}
		2325
		2326	sub emergency_save() {
		2327	my $freeze_guard = cf::freeze_mainloop;
		2328
		2329	warn "enter emergency perl save\n";
		2330
		2331	cf::sync_job {
		2332	# use a peculiar iteration method to avoid tripping on perl
		2333	# refcount bugs in for. also avoids problems with players
		2334	# and maps saved/destroyed asynchronously.
		2335	warn "begin emergency player save\n";
		2336	for my $login (keys %cf::PLAYER) {
		2337	my $pl = $cf::PLAYER{$login} or next;
		2338	$pl->valid or next;
		2339	$pl->save;
		2340	}
		2341	warn "end emergency player save\n";
		2342
		2343	warn "begin emergency map save\n";
		2344	for my $path (keys %cf::MAP) {
		2345	my $map = $cf::MAP{$path} or next;
		2346	$map->valid or next;
		2347	$map->save;
		2348	}
		2349	warn "end emergency map save\n";
		2350
		2351	warn "begin emergency database checkpoint\n";
		2352	BDB::db_env_txn_checkpoint $DB_ENV;
		2353	warn "end emergency database checkpoint\n";
		2354	};
		2355
		2356	warn "leave emergency perl save\n";
		2357	}
		2358
1275	sub _perl_reload() {	2359	sub reload() {
		2360	# can/must only be called in main
		2361	if ($Coro::current != $Coro::main) {
		2362	warn "can only reload from main coroutine";
		2363	return;
		2364	}
		2365
1276	warn "reloading...";	2366	warn "reloading...";
1277		2367
		2368	warn "cancelling server ticker";
		2369	$TICK_WATCHER->cancel;
		2370
		2371	cf::emergency_save;
		2372
1278	eval {	2373	eval {
1279	local $FREEZE = 1;	2374	# if anything goes wrong in here, we should simply crash as we already saved
1280		2375
1281	cf::emergency_save;	2376	warn "cancelling all WF_AUTOCANCEL watchers";
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {	2377	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2378	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2379	}
1287		2380
		2381	warn "syncing database to disk";
		2382	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2383
		2384	warn "flushing outstanding aio requests";
		2385	for (;;) {
		2386	BDB::flush;
		2387	IO::AIO::flush;
		2388	Coro::cede;
		2389	last unless IO::AIO::nreqs || BDB::nreqs;
		2390	warn "iterate...";
		2391	}
		2392
1288	# cancel all extension coros	2393	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2394	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2395	%EXT_CORO = ();
1291		2396
1292	# unload all extensions	2397	warn "removing commands";
1293	for (@exts) {	2398	%COMMAND = ();
		2399
		2400	warn "removing ext commands";
		2401	%EXTCMD = ();
		2402
		2403	warn "unloading/nuking all extensions";
		2404	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2405	warn "... unloading $pkg";
1295	unload_extension $_;	2406
		2407	if (my $cb = $pkg->can ("unload")) {
		2408	eval {
		2409	$cb->($pkg);
		2410	1
		2411	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2412	}
1297		2413
		2414	warn "... nuking $pkg";
		2415	Symbol::delete_package $pkg;
		2416	}
		2417
1298	# unload all modules loaded from $LIBDIR	2418	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2419	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2420	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2421
1302	warn "removing <$k>";	2422	warn "... unloading $k";
1303	delete $INC{$k};	2423	delete $INC{$k};
1304		2424
1305	$k =~ s/\.pm$//;	2425	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2426	$k =~ s/\//::/g;
1307		2427
…		…
1310	}	2430	}
1311		2431
1312	Symbol::delete_package $k;	2432	Symbol::delete_package $k;
1313	}	2433	}
1314		2434
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2435	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2436	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2437	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2438
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2439	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2440	delete $INC{"cf.pm"};
1328		2441
1329	# don't, removes xs symbols, too,	2442	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2443	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2444	#Symbol::delete_package __PACKAGE__;
1332		2445
1333	# reload cf.pm	2446	warn "unload completed, starting to reload now";
		2447
1334	warn "reloading cf.pm";	2448	warn "reloading cf.pm";
1335	require cf;	2449	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2450	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2451
1338	# load config and database again	2452	warn "loading config and database again";
1339	cf::cfg_load;	2453	cf::cfg_load;
1340	cf::db_load;
1341		2454
1342	# load extensions
1343	warn "load extensions";	2455	warn "loading extensions";
1344	cf::load_extensions;	2456	cf::load_extensions;
1345		2457
1346	# reattach attachments to objects	2458	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2459	_global_reattach;
		2460	warn "reattaching attachments to maps";
		2461	reattach $_ for values %MAP;
		2462
		2463	warn "loading reloadable resources";
		2464	load_resources;
		2465
		2466	warn "restarting server ticker";
		2467
		2468	$TICK_WATCHER->start;
1349	};	2469	};
1350	warn $@ if $@;	2470
		2471	if ($@) {
		2472	warn $@;
		2473	warn "error while reloading, exiting.";
		2474	exit 1;
		2475	}
1351		2476
1352	warn "reloaded";	2477	warn "reloaded";
1353	};	2478	};
1354		2479
1355	sub perl_reload() {	2480	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2481
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2482	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2483	my ($who, $arg) = @_;
1363		2484
1364	if ($who->flag (FLAG_WIZ)) {	2485	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2486	$who->message ("reloading server.");
1366	_perl_reload;	2487
		2488	# doing reload synchronously and two reloads happen back-to-back,
		2489	# coro crashes during coro_state_free->destroy here.
		2490
		2491	$RELOAD_WATCHER ||= Event->timer (
		2492	reentrant => 0,
		2493	after => 0,
		2494	data => WF_AUTOCANCEL,
		2495	cb => sub {
		2496	reload;
		2497	undef $RELOAD_WATCHER;
		2498	},
		2499	);
1367	}	2500	}
1368	};	2501	};
1369		2502
1370	unshift @INC, $LIBDIR;	2503	unshift @INC, $LIBDIR;
		2504
		2505	my $bug_warning = 0;
1371		2506
1372	$TICK_WATCHER = Event->timer (	2507	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2508	reentrant => 0,
		2509	parked => 1,
1374	prio => 0,	2510	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2511	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2512	data => WF_AUTOCANCEL,
1377	cb => sub {	2513	cb => sub {
1378	unless ($FREEZE) {	2514	if ($Coro::current != $Coro::main) {
		2515	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2516	unless ++$bug_warning > 10;
		2517	return;
		2518	}
		2519
		2520	$NOW = Event::time;
		2521
1379	cf::server_tick; # one server iteration	2522	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2523	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2524	$NEXT_TICK += $TICK;
		2525
		2526	$WAIT_FOR_TICK->broadcast;
		2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2528
		2529	Event::sweep;
		2530	Coro::cede_notself;
		2531
		2532	# my $AFTER = Event::time;
		2533	# warn $AFTER - $NOW;#d#
1384		2534
1385	# if we are delayed by four ticks or more, skip them all	2535	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2536	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2537
1388	$TICK_WATCHER->at ($NEXT_TICK);	2538	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2539	$TICK_WATCHER->start;
1390	},	2540	},
1391	);	2541	);
1392		2542
		2543	{
		2544	BDB::max_poll_time $TICK * 0.1;
		2545	$BDB_POLL_WATCHER = Event->io (
		2546	reentrant => 0,
		2547	fd => BDB::poll_fileno,
		2548	poll => 'r',
		2549	prio => 0,
		2550	data => WF_AUTOCANCEL,
		2551	cb => \&BDB::poll_cb,
		2552	);
		2553	BDB::min_parallel 8;
		2554
		2555	BDB::set_sync_prepare {
		2556	my $status;
		2557	my $current = $Coro::current;
		2558	(
		2559	sub {
		2560	$status = $!;
		2561	$current->ready; undef $current;
		2562	},
		2563	sub {
		2564	Coro::schedule while defined $current;
		2565	$! = $status;
		2566	},
		2567	)
		2568	};
		2569
		2570	unless ($DB_ENV) {
		2571	$DB_ENV = BDB::db_env_create;
		2572
		2573	cf::sync_job {
		2574	eval {
		2575	BDB::db_env_open
		2576	$DB_ENV,
		2577	$BDB_ENV_DIR,
		2578	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2579	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2580	0666;
		2581
		2582	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2583
		2584	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2585	$DB_ENV->set_lk_detect;
		2586	};
		2587
		2588	cf::cleanup "db_env_open(db): $@" if $@;
		2589	};
		2590	}
		2591	}
		2592
		2593	{
		2594	IO::AIO::min_parallel 8;
		2595
		2596	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2597	IO::AIO::max_poll_time $TICK * 0.1;
1394		2598	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2599	reentrant => 0,
		2600	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2601	poll => 'r',
1397	prio => 5,	2602	prio => 6,
1398	data => WF_AUTOCANCEL,	2603	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2604	cb => \&IO::AIO::poll_cb,
		2605	);
		2606	}
1400		2607
1401	# we must not ever block the main coroutine	2608	$WRITE_RUNTIME_WATCHER = Event->timer (
1402	$Coro::idle = sub {	2609	reentrant => 0,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2610	data => WF_AUTOCANCEL,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2611	after => 1,
		2612	interval => 10,
		2613	prio => 6, # keep it lowest so it acts like a watchdog
1405	(Coro::unblock_sub {	2614	cb => Coro::unblock_sub {
1406	Event::one_event;	2615	write_runtime
1407	})->();	2616	or warn "ERROR: unable to write runtime file: $!";
1408	};	2617	},
		2618	);
		2619
		2620	END { cf::emergency_save }
1409		2621
1410	1	2622	1
1411		2623

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