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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 1.218 by root, Sat Feb 17 01:58:55 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 $NEXT_RUNTIME_WRITE; # when should the runtime file be written
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	};
		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
182	sub sync_job(&) {	306	sub sync_job(&) {
183	my ($job) = @_;	307	my ($job) = @_;
184		308
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 == $Coro::main) {	309	if ($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;
197	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
198	while ($busy) {	326	while ($busy) {
199	Coro::cede_notself;	327	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	328	}
		329
		330	wantarray ? @res : $res[0]
202	} else {	331	} else {
203	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
204	}	335	}
205
206	wantarray ? @res : $res[0]
207	}	336	}
208		337
209	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
210		339
211	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
213		342
214	=cut	343	=cut
215		344
216	sub coro(&) {	345	sub async_ext(&) {
217	my $cb = shift;	346	my $cb = shift;
218		347
219	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		349
226	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
228	});	352	});
229	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
230		354
231	$coro	355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $runtime = cf::localdir . "/runtime";
		360
		361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		362	or return;
		363
		364	my $value = $cf::RUNTIME + 90 + 10;
		365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
		368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		369	and return;
		370
		371	# always fsync - this file is important
		372	aio_fsync $fh
		373	and return;
		374
		375	close $fh
		376	or return;
		377
		378	aio_rename "$runtime~", $runtime
		379	and return;
		380
		381	1
232	}	382	}
233		383
234	=back	384	=back
235		385
236	=cut	386	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	518	our @CB_MAP = ();
369		519
370	my %attachment;	520	my %attachment;
371		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
372	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
374		530
375	use sort 'stable';	531	use sort 'stable';
376		532
…		…
547	# object support	703	# object support
548		704
549	sub reattach {	705	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		710
553	my $registry = $obj->registry;	711	my $registry = $obj->registry;
554		712
555	@$registry = ();	713	@$registry = ();
556		714
…		…
603	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
604		762
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	767	close $fh;
610		768
611	if (@$objs) {	769	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	775	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
619	}	777	}
620	} else {	778	} else {
621	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
649	or return;	807	or return;
650		808
651	unless (aio_stat "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
653	or return;	811	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
655	}	813	}
656		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	817	return ($data, $av);
658	}	818	}
659		819
660	#############################################################################	820	#############################################################################
661	# command handling &c	821	# command handling &c
…		…
686	=cut	846	=cut
687		847
688	sub register_extcmd {	848	sub register_extcmd {
689	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
690		850
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
695	}	852	}
696		853
697	cf::player->attach (	854	cf::player->attach (
698	on_command => sub {	855	on_command => sub {
699	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
712		869
713	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
714		871
715	if (ref $msg) {	872	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	876	}
720	}	877	}
721	} else {	878	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		881
725	cf::override;	882	cf::override;
726	},	883	},
727	);	884	);
728		885
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	886	sub load_extension {
736	my ($path) = @_;	887	my ($path) = @_;
737		888
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	890	my $base = $1;
740	my $pkg = $1;	891	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
743		894
744	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
745		896
746	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
747	or die "$path: $!";	898	or die "$path: $!";
748		899
749	my $source =	900	my $source =
750	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
753	. "\n};\n1";	904	. "\n};\n1";
754		905
755	eval $source	906	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	908	: "extension disabled.\n";
758		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	910	warn $@;
760	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
761		912	exit 1;
762	# no strict 'refs';	913	}
763	# @{"$pkg\::ISA"} = ext::;	914	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	# }	915	}
778		916
779	# remove commands	917	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	}	918	}
804		919
805	sub load_extensions {	920	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	922	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
812	}	927	}
813	}	928	}
814		929
815	#############################################################################	930	#############################################################################
816	# load/save/clean perl data associated with a map
817		931
818	*cf::mapsupport::on_clean = sub {	932	=head2 CORE EXTENSIONS
		933
		934	Functions and methods that extend core crossfire objects.
		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
		942	=head3 cf::player
		943
		944	=over 4
		945
		946	=item cf::player::find $login
		947
		948	Returns the given player object, loading it if necessary (might block).
		949
		950	=cut
		951
		952	sub playerdir($) {
		953	cf::localdir
		954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
		1100	}
		1101
		1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1103
		1104	Sends an ext reply to the player.
		1105
		1106	=cut
		1107
		1108	sub ext_reply($$$%) {
		1109	my ($self, $id, %msg) = @_;
		1110
		1111	$msg{msgid} = $id;
		1112
		1113	$self->send ("ext " . cf::to_json \%msg);
		1114	}
		1115
		1116	package cf;
		1117
		1118	=back
		1119
		1120
		1121	=head3 cf::map
		1122
		1123	=over 4
		1124
		1125	=cut
		1126
		1127	package cf::map;
		1128
		1129	use Fcntl;
		1130	use Coro::AIO;
		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
		1136	our $MAX_RESET = 3600;
		1137	our $DEFAULT_RESET = 3000;
		1138
		1139	sub generate_random_map {
		1140	my ($self, $rmp) = @_;
		1141	# mit "rum" bekleckern, nicht
		1142	$self->_create_random_map (
		1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1146	$rmp->{exit_on_final_map},
		1147	$rmp->{xsize}, $rmp->{ysize},
		1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1284	}
		1285
		1286	# and all this just because we cannot iterate over
		1287	# all maps in C++...
		1288	sub change_all_map_light {
		1289	my ($change) = @_;
		1290
		1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
		1293	}
		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301	}
		1302
		1303	sub load_header_from($) {
		1304	my ($self, $path) = @_;
		1305
		1306	utf8::encode $path;
		1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
		1311	or return;
		1312
		1313	$self->{load_path} = $path;
		1314
		1315	1
		1316	}
		1317
		1318	sub load_header_orig {
		1319	my ($self) = @_;
		1320
		1321	$self->load_header_from ($self->load_path)
		1322	}
		1323
		1324	sub load_header_temp {
		1325	my ($self) = @_;
		1326
		1327	$self->load_header_from ($self->save_path)
		1328	}
		1329
		1330	sub prepare_temp {
		1331	my ($self) = @_;
		1332
		1333	$self->last_access ((delete $self->{last_access})
		1334	|| $cf::RUNTIME); #d#
		1335	# safety
		1336	$self->{instantiate_time} = $cf::RUNTIME
		1337	if $self->{instantiate_time} > $cf::RUNTIME;
		1338	}
		1339
		1340	sub prepare_orig {
		1341	my ($self) = @_;
		1342
		1343	$self->{load_original} = 1;
		1344	$self->{instantiate_time} = $cf::RUNTIME;
		1345	$self->last_access ($cf::RUNTIME);
		1346	$self->instantiate;
		1347	}
		1348
		1349	sub load_header {
		1350	my ($self) = @_;
		1351
		1352	if ($self->load_header_temp) {
		1353	$self->prepare_temp;
		1354	} else {
		1355	$self->load_header_orig
		1356	or return;
		1357	$self->prepare_orig;
		1358	}
		1359
		1360	1
		1361	}
		1362
		1363	sub find;
		1364	sub find {
		1365	my ($path, $origin) = @_;
		1366
		1367	$path = normalise $path, $origin && $origin->path;
		1368
		1369	cf::lock_wait "map_find:$path";
		1370
		1371	$cf::MAP{$path} || do {
		1372	my $guard = cf::lock_acquire "map_find:$path";
		1373	my $map = new_from_path cf::map $path
		1374	or return;
		1375
		1376	$map->{last_save} = $cf::RUNTIME;
		1377
		1378	$map->load_header
		1379	or return;
		1380
		1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1382	# doing this can freeze the server in a sync job, obviously
		1383	#$cf::WAIT_FOR_TICK->wait;
		1384	$map->reset;
		1385	undef $guard;
		1386	return find $path;
		1387	}
		1388
		1389	$cf::MAP{$path} = $map
		1390	}
		1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
		1395
		1396	sub load {
		1397	my ($self) = @_;
		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
		1401	my $path = $self->{path};
		1402	my $guard = cf::lock_acquire "map_load:$path";
		1403
		1404	return if $self->in_memory != cf::MAP_SWAPPED;
		1405
		1406	$self->in_memory (cf::MAP_LOADING);
		1407
		1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
		1412	$self->_load_objects ($self->{load_path}, 1)
		1413	or return;
		1414
		1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1416	if delete $self->{load_original};
		1417
		1418	if (my $uniq = $self->uniq_path) {
		1419	utf8::encode $uniq;
		1420	if (aio_open $uniq, O_RDONLY, 0) {
		1421	$self->clear_unique_items;
		1422	$self->_load_objects ($uniq, 0);
		1423	}
		1424	}
		1425
		1426	Coro::cede;
		1427
		1428	# now do the right thing for maps
		1429	$self->link_multipart_objects;
		1430
		1431	unless ($self->{deny_activate}) {
		1432	$self->decay_objects;
		1433	$self->fix_auto_apply;
		1434	$self->update_buttons;
		1435	Coro::cede;
		1436	$self->set_darkness_map;
		1437	$self->difficulty ($self->estimate_difficulty)
		1438	unless $self->difficulty;
		1439	Coro::cede;
		1440	$self->activate;
		1441	}
		1442
		1443	$self->post_load;
		1444
		1445	$self->in_memory (cf::MAP_IN_MEMORY);
		1446	}
		1447
		1448	sub customise_for {
		1449	my ($self, $ob) = @_;
		1450
		1451	return find "~" . $ob->name . "/" . $self->{path}
		1452	if $self->per_player;
		1453
		1454	$self
		1455	}
		1456
		1457	# find and load all maps in the 3x3 area around a map
		1458	sub load_diag {
819	my ($map) = @_;	1459	my ($map) = @_;
820		1460
821	my $path = $map->tmpname;	1461	my @diag; # diagonal neighbours
822	defined $path or return;
823		1462
824	unlink "$path.pst";	1463	for (0 .. 3) {
825	};	1464	my $neigh = $map->tile_path ($_)
		1465	or next;
		1466	$neigh = find $neigh, $map
		1467	or next;
		1468	$neigh->load;
826		1469
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1472	}
828		1473
829	#############################################################################	1474	for (@diag) {
830	# load/save perl data associated with player->ob objects	1475	my $neigh = find @$_
831		1476	or next;
832	sub all_objects(@) {	1477	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1478	}
834	}	1479	}
835		1480
836	# TODO: compatibility cruft, remove when no longer needed	1481	sub find_sync {
837	cf::player->attach (	1482	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1483
841	for my $o (all_objects $pl->ob) {	1484	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1485	}
843	$o->set_ob_key_value ("_perl_data");
844		1486
845	%$o = %{ Storable::thaw pack "H*", $value };	1487	sub do_load_sync {
		1488	my ($map) = @_;
		1489
		1490	cf::sync_job { $map->load };
		1491	}
		1492
		1493	our %MAP_PREFETCH;
		1494	our $MAP_PREFETCHER = undef;
		1495
		1496	sub find_async {
		1497	my ($path, $origin) = @_;
		1498
		1499	$path = normalise $path, $origin && $origin->{path};
		1500
		1501	if (my $map = $cf::MAP{$path}) {
		1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1503	}
		1504
		1505	undef $MAP_PREFETCH{$path};
		1506	$MAP_PREFETCHER ||= cf::async {
		1507	while (%MAP_PREFETCH) {
		1508	for my $path (keys %MAP_PREFETCH) {
		1509	my $map = find $path
		1510	or next;
		1511	$map->load;
		1512
		1513	delete $MAP_PREFETCH{$path};
846	}	1514	}
847	}	1515	}
		1516	undef $MAP_PREFETCHER;
		1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
		1521	}
		1522
		1523	sub save {
		1524	my ($self) = @_;
		1525
		1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1527
		1528	$self->{last_save} = $cf::RUNTIME;
		1529
		1530	return unless $self->dirty;
		1531
		1532	my $save = $self->save_path; utf8::encode $save;
		1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1534
		1535	$self->{load_path} = $save;
		1536
		1537	return if $self->{deny_save};
		1538
		1539	local $self->{last_access} = $self->last_access;#d#
		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
		1544
		1545	if ($uniq) {
		1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1548	} else {
		1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1550	}
849	);	1551	}
850		1552
851	#############################################################################	1553	sub swap_out {
		1554	my ($self) = @_;
852		1555
853	=head2 CORE EXTENSIONS	1556	# save first because save cedes
		1557	$self->save;
854		1558
855	Functions and methods that extend core crossfire objects.	1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1560
857	=head3 cf::player	1561	return if $self->players;
		1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1563	return if $self->{deny_save};
		1564
		1565	$self->clear;
		1566	$self->in_memory (cf::MAP_SWAPPED);
		1567	}
		1568
		1569	sub reset_at {
		1570	my ($self) = @_;
		1571
		1572	# TODO: safety, remove and allow resettable per-player maps
		1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1574	return 1e99 if $self->{deny_reset};
		1575
		1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1578
		1579	$time + $to
		1580	}
		1581
		1582	sub should_reset {
		1583	my ($self) = @_;
		1584
		1585	$self->reset_at <= $cf::RUNTIME
		1586	}
		1587
		1588	sub reset {
		1589	my ($self) = @_;
		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
		1593	return if $self->players;
		1594	return if $self->isa ("ext::map_per_player");#d#
		1595
		1596	warn "resetting map ", $self->path;#d#
		1597
		1598	$self->in_memory (cf::MAP_SWAPPED);
		1599
		1600	# need to save uniques path
		1601	unless ($self->{deny_save}) {
		1602	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1603
		1604	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1605	if $uniq;
		1606	}
		1607
		1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
		1611
		1612	$_->clear_links_to ($self) for values %cf::MAP;
		1613
		1614	$self->unlink_save;
		1615	$self->destroy;
		1616	}
		1617
		1618	my $nuke_counter = "aaaa";
		1619
		1620	sub nuke {
		1621	my ($self) = @_;
		1622
		1623	delete $cf::MAP{$self->path};
		1624
		1625	$self->unlink_save;
		1626
		1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
		1629	$self->{deny_save} = 1;
		1630	$self->reset_timeout (1);
		1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1632
		1633	$cf::MAP{$self->path} = $self;
		1634
		1635	$self->reset; # polite request, might not happen
		1636	}
		1637
		1638	=item cf::map::unique_maps
		1639
		1640	Returns an arrayref of paths of all shared maps that have
		1641	instantiated unique items. May block.
		1642
		1643	=cut
		1644
		1645	sub unique_maps() {
		1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
		1648
		1649	my @paths;
		1650
		1651	for (@$files) {
		1652	utf8::decode $_;
		1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
		1657	}
		1658
		1659	\@paths
		1660	}
		1661
		1662	package cf;
		1663
		1664	=back
		1665
		1666	=head3 cf::object
		1667
		1668	=cut
		1669
		1670	package cf::object;
858		1671
859	=over 4	1672	=over 4
860		1673
861	=item cf::player::exists $login	1674	=item $ob->inv_recursive
862		1675
863	Returns true when the given account exists.	1676	Returns the inventory of the object _and_ their inventories, recursively.
864		1677
865	=cut	1678	=cut
866		1679
867	sub cf::player::exists($) {	1680	sub inv_recursive_;
868	cf::player::find $_[0]	1681	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1682	map { $_, inv_recursive_ $_->inv } @_
870	}	1683	}
871		1684
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1685	sub inv_recursive {
873		1686	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	}	1687	}
		1688
		1689	package cf;
885		1690
886	=back	1691	=back
887		1692
888	=head3 cf::object::player	1693	=head3 cf::object::player
889		1694
…		…
927	(ref $cf::CFG{"may_$access"}	1732	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1733	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1734	: $cf::CFG{"may_$access"})
930	}	1735	}
931		1736
		1737	=item $player_object->enter_link
		1738
		1739	Freezes the player and moves him/her to a special map (C<{link}>).
		1740
		1741	The player should be reasonably safe there for short amounts of time. You
		1742	I<MUST> call C<leave_link> as soon as possible, though.
		1743
		1744	Will never block.
		1745
		1746	=item $player_object->leave_link ($map, $x, $y)
		1747
		1748	Moves the player out of the special C<{link}> map onto the specified
		1749	map. If the map is not valid (or omitted), the player will be moved back
		1750	to the location he/she was before the call to C<enter_link>, or, if that
		1751	fails, to the emergency map position.
		1752
		1753	Might block.
		1754
		1755	=cut
		1756
		1757	sub link_map {
		1758	unless ($LINK_MAP) {
		1759	$LINK_MAP = cf::map::find "{link}"
		1760	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1761	$LINK_MAP->load;
		1762	}
		1763
		1764	$LINK_MAP
		1765	}
		1766
		1767	sub cf::object::player::enter_link {
		1768	my ($self) = @_;
		1769
		1770	$self->deactivate_recursive;
		1771
		1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1773
		1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1775	if $self->map;
		1776
		1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1778	}
		1779
		1780	sub cf::object::player::leave_link {
		1781	my ($self, $map, $x, $y) = @_;
		1782
		1783	my $link_pos = delete $self->{_link_pos};
		1784
		1785	unless ($map) {
		1786	# restore original map position
		1787	($map, $x, $y) = @{ $link_pos || [] };
		1788	$map = cf::map::find $map;
		1789
		1790	unless ($map) {
		1791	($map, $x, $y) = @$EMERGENCY_POSITION;
		1792	$map = cf::map::find $map
		1793	or die "FATAL: cannot load emergency map\n";
		1794	}
		1795	}
		1796
		1797	($x, $y) = (-1, -1)
		1798	unless (defined $x) && (defined $y);
		1799
		1800	# use -1 or undef as default coordinates, not 0, 0
		1801	($x, $y) = ($map->enter_x, $map->enter_y)
		1802	if $x <=0 && $y <= 0;
		1803
		1804	$map->load;
		1805	$map->load_diag;
		1806
		1807	return unless $self->contr->active;
		1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1811	$self->enter_map ($map, $x, $y);
		1812	}
		1813
		1814	cf::player->attach (
		1815	on_logout => sub {
		1816	my ($pl) = @_;
		1817
		1818	# abort map switching before logout
		1819	if ($pl->ob->{_link_pos}) {
		1820	cf::sync_job {
		1821	$pl->ob->leave_link
		1822	};
		1823	}
		1824	},
		1825	on_login => sub {
		1826	my ($pl) = @_;
		1827
		1828	# try to abort aborted map switching on player login :)
		1829	# should happen only on crashes
		1830	if ($pl->ob->{_link_pos}) {
		1831	$pl->ob->enter_link;
		1832	(async {
		1833	$pl->ob->reply (undef,
		1834	"There was an internal problem at your last logout, "
		1835	. "the server will try to bring you to your intended destination in a second.",
		1836	cf::NDI_RED);
		1837	# we need this sleep as the login has a concurrent enter_exit running
		1838	# and this sleep increases chances of the player not ending up in scorn
		1839	Coro::Timer::sleep 1;
		1840	$pl->ob->leave_link;
		1841	})->prio (2);
		1842	}
		1843	},
		1844	);
		1845
		1846	=item $player_object->goto ($path, $x, $y)
		1847
		1848	=cut
		1849
		1850	sub cf::object::player::goto {
		1851	my ($self, $path, $x, $y) = @_;
		1852
		1853	$self->enter_link;
		1854
		1855	(async {
		1856	my $map = eval {
		1857	my $map = cf::map::find $path;
		1858	$map = $map->customise_for ($self) if $map;
		1859	$map
		1860	} or
		1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1862
		1863	$self->leave_link ($map, $x, $y);
		1864	})->prio (1);
		1865	}
		1866
		1867	=item $player_object->enter_exit ($exit_object)
		1868
		1869	=cut
		1870
		1871	sub parse_random_map_params {
		1872	my ($spec) = @_;
		1873
		1874	my $rmp = { # defaults
		1875	xsize => (cf::rndm 15, 40),
		1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
		1879	};
		1880
		1881	for (split /\n/, $spec) {
		1882	my ($k, $v) = split /\s+/, $_, 2;
		1883
		1884	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1885	}
		1886
		1887	$rmp
		1888	}
		1889
		1890	sub prepare_random_map {
		1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1894
		1895	# all this does is basically replace the /! path by
		1896	# a new random map path (?random/...) with a seed
		1897	# that depends on the exit object
		1898
		1899	my $rmp = parse_random_map_params $exit->msg;
		1900
		1901	if ($exit->map) {
		1902	$rmp->{region} = $exit->region->name;
		1903	$rmp->{origin_map} = $exit->map->path;
		1904	$rmp->{origin_x} = $exit->x;
		1905	$rmp->{origin_y} = $exit->y;
		1906	}
		1907
		1908	$rmp->{random_seed} ||= $exit->random_seed;
		1909
		1910	my $data = cf::to_json $rmp;
		1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1913
		1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1915	aio_write $fh, 0, (length $data), $data, 0;
		1916	undef $fh;
		1917	aio_rename "$meta~", $meta;
		1918
		1919	$exit->slaying ("?random/$md5");
		1920	$exit->msg (undef);
		1921	}
		1922	}
		1923
		1924	sub cf::object::player::enter_exit {
		1925	my ($self, $exit) = @_;
		1926
		1927	return unless $self->type == cf::PLAYER;
		1928
		1929	if ($exit->slaying eq "/!") {
		1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1931	cf::sync_job { prepare_random_map $exit };
		1932	}
		1933
		1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1935	my $hp = $exit->stats->hp;
		1936	my $sp = $exit->stats->sp;
		1937
		1938	$self->enter_link;
		1939
		1940	(async {
		1941	$self->deactivate_recursive; # just to be sure
		1942	unless (eval {
		1943	$self->goto ($slaying, $hp, $sp);
		1944
		1945	1;
		1946	}) {
		1947	$self->message ("Something went wrong deep within the crossfire server. "
		1948	. "I'll try to bring you back to the map you were before. "
		1949	. "Please report this to the dungeon master!",
		1950	cf::NDI_UNIQUE | cf::NDI_RED);
		1951
		1952	warn "ERROR in enter_exit: $@";
		1953	$self->leave_link;
		1954	}
		1955	})->prio (1);
		1956	}
		1957
932	=head3 cf::client	1958	=head3 cf::client
933		1959
934	=over 4	1960	=over 4
935		1961
936	=item $client->send_drawinfo ($text, $flags)	1962	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	2005	on_reply => sub {
980	my ($ns, $msg) = @_;	2006	my ($ns, $msg) = @_;
981		2007
982	# this weird shuffling is so that direct followup queries	2008	# this weird shuffling is so that direct followup queries
983	# get handled first	2009	# get handled first
984	my $queue = delete $ns->{query_queue};	2010	my $queue = delete $ns->{query_queue}
		2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2012
986	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2015
988	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
989		2017
990	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2019	if (@$queue) {
…		…
995	}	2023	}
996	}	2024	}
997	},	2025	},
998	);	2026	);
999		2027
1000	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1001		2029
1002	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2031	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2032	or loss of connection).
1005		2033
1006	=cut	2034	=cut
1007		2035
1008	sub cf::client::coro {	2036	sub cf::client::async {
1009	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1010		2038
1011	my $coro; $coro = async {	2039	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2040
1018	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1020	});	2043	});
1021		2044
…		…
1157	The parameter C<$family> should best start with the name of the extension	2180	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2181	using it, it should be unique.
1159		2182
1160	=over 4	2183	=over 4
1161		2184
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	2185	=item $value = cf::db_get $family => $key
1169		2186
1170	Returns a single value from the database	2187	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		2188
1177	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1178		2190
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	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		2192
1190	=cut	2193	=cut
1191		2194
1192	our $DB;	2195	our $DB;
1193		2196
1194	{	2197	sub db_init {
		2198	unless ($DB) {
		2199	$DB = BDB::db_create $DB_ENV;
		2200
		2201	cf::sync_job {
		2202	eval {
		2203	$DB->set_flags (BDB::CHKSUM);
		2204
		2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2207	cf::cleanup "db_open(db): $!" if $!;
		2208	};
		2209	cf::cleanup "db_open(db): $@" if $@;
		2210	};
		2211
1195	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
		2213	if (stat $path) {
		2214	cf::sync_job {
		2215	my $pst = Storable::retrieve $path;
1196		2216
1197	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2220	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2221
1202	my $pid;	2222	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	}	2223	};
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	},	2224	}
1251	);	2225	}
		2226	}
		2227
		2228	sub db_get($$) {
		2229	my $key = "$_[0]/$_[1]";
		2230
		2231	cf::sync_job {
		2232	BDB::db_get $DB, undef, $key, my $data;
		2233
		2234	$! ? ()
		2235	: Compress::LZF::sthaw $data
		2236	}
		2237	}
		2238
		2239	sub db_put($$$) {
		2240	BDB::dbreq_pri 4;
		2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1252	}	2242	}
1253		2243
1254	#############################################################################	2244	#############################################################################
1255	# the server's main()	2245	# the server's init and main functions
		2246
		2247	sub init_resources {
		2248	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2249	or die "unable to load regions file\n";#d#
		2250	}
1256		2251
1257	sub cfg_load {	2252	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2254	or return;
1260		2255
1261	local $/;	2256	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
		2271	}
		2272
		2273	sub init {
		2274	init_resources;
1263	}	2275	}
1264		2276
1265	sub main {	2277	sub main {
		2278	# we must not ever block the main coroutine
		2279	local $Coro::idle = sub {
		2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2281	(async {
		2282	Event::one_event;
		2283	})->prio (Coro::PRIO_MAX);
		2284	};
		2285
1266	cfg_load;	2286	cfg_load;
1267	db_load;	2287	db_init;
1268	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
1269	Event::loop;	2291	Event::loop;
1270	}	2292	}
1271		2293
1272	#############################################################################	2294	#############################################################################
1273	# initialisation	2295	# initialisation and cleanup
1274		2296
		2297	# install some emergency cleanup handlers
		2298	BEGIN {
		2299	for my $signal (qw(INT HUP TERM)) {
		2300	Event->signal (
		2301	reentrant => 0,
		2302	data => WF_AUTOCANCEL,
		2303	signal => $signal,
		2304	prio => 0,
		2305	cb => sub {
		2306	cf::cleanup "SIG$signal";
		2307	},
		2308	);
		2309	}
		2310	}
		2311
		2312	sub emergency_save() {
		2313	my $freeze_guard = cf::freeze_mainloop;
		2314
		2315	warn "enter emergency perl save\n";
		2316
		2317	cf::sync_job {
		2318	# use a peculiar iteration method to avoid tripping on perl
		2319	# refcount bugs in for. also avoids problems with players
		2320	# and maps saved/destroyed asynchronously.
		2321	warn "begin emergency player save\n";
		2322	for my $login (keys %cf::PLAYER) {
		2323	my $pl = $cf::PLAYER{$login} or next;
		2324	$pl->valid or next;
		2325	$pl->save;
		2326	}
		2327	warn "end emergency player save\n";
		2328
		2329	warn "begin emergency map save\n";
		2330	for my $path (keys %cf::MAP) {
		2331	my $map = $cf::MAP{$path} or next;
		2332	$map->valid or next;
		2333	$map->save;
		2334	}
		2335	warn "end emergency map save\n";
		2336
		2337	warn "begin emergency database checkpoint\n";
		2338	BDB::db_env_txn_checkpoint $DB_ENV;
		2339	warn "end emergency database checkpoint\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
		2344
		2345	sub post_cleanup {
		2346	my ($make_core) = @_;
		2347
		2348	warn Carp::longmess "post_cleanup backtrace"
		2349	if $make_core;
		2350	}
		2351
1275	sub _perl_reload() {	2352	sub reload() {
		2353	# can/must only be called in main
		2354	if ($Coro::current != $Coro::main) {
		2355	warn "can only reload from main coroutine";
		2356	return;
		2357	}
		2358
1276	warn "reloading...";	2359	warn "reloading...";
1277		2360
1278	eval {	2361	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
1282		2367
1283	# cancel all watchers	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
		2371	# if anything goes wrong in here, we should simply crash as we already saved
		2372
		2373	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2376	}
1287		2377
		2378	warn "flushing outstanding aio requests";
		2379	for (;;) {
		2380	BDB::flush;
		2381	IO::AIO::flush;
		2382	Coro::cede;
		2383	last unless IO::AIO::nreqs || BDB::nreqs;
		2384	warn "iterate...";
		2385	}
		2386
1288	# cancel all extension coros	2387	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2389	%EXT_CORO = ();
1291		2390
1292	# unload all extensions	2391	warn "removing commands";
1293	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2399	warn "... unloading $pkg";
1295	unload_extension $_;	2400
		2401	if (my $cb = $pkg->can ("unload")) {
		2402	eval {
		2403	$cb->($pkg);
		2404	1
		2405	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2406	}
1297		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
1298	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2415
1302	warn "removing <$k>";	2416	warn "... unloading $k";
1303	delete $INC{$k};	2417	delete $INC{$k};
1304		2418
1305	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
1307		2421
…		…
1310	}	2424	}
1311		2425
1312	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
1313	}	2427	}
1314		2428
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2432
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
1328		2435
1329	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2437	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
1332		2439
1333	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
1334	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
1335	require cf;	2443	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2445
1338	# load config and database again	2446	warn "loading config and database again";
1339	cf::cfg_load;	2447	cf::cfg_load;
1340	cf::db_load;
1341		2448
1342	# load extensions
1343	warn "load extensions";	2449	warn "loading extensions";
1344	cf::load_extensions;	2450	cf::load_extensions;
1345		2451
1346	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2453	_global_reattach;
		2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
		2456
		2457	warn "loading reloadable resources";
		2458	init_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
		2464	warn $@;
		2465	warn "error while reloading, exiting.";
		2466	exit 1;
1349	};	2467	};
1350	warn $@ if $@;
1351		2468
1352	warn "reloaded";	2469	warn "reloaded";
1353	};	2470	};
1354		2471
1355	sub perl_reload() {	2472	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2473
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2474	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
1363		2476
1364	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2478	$who->message ("reloading server.");
1366	_perl_reload;	2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
		2488	reload;
		2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
1367	}	2492	}
1368	};	2493	};
1369		2494
1370	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
1371		2498
1372	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
1374	prio => 0,	2502	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
1377	cb => sub {	2505	cb => sub {
1378	unless ($FREEZE) {	2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
1379	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2519	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2520	Coro::async_pool {
		2521	write_runtime
		2522	or warn "ERROR: unable to write runtime file: $!";
		2523	};
		2524	}
		2525
		2526	$WAIT_FOR_TICK->broadcast;
		2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2528
		2529	# my $AFTER = Event::time;
		2530	# warn $AFTER - $NOW;#d#
1384		2531
1385	# if we are delayed by four ticks or more, skip them all	2532	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2534
1388	$TICK_WATCHER->at ($NEXT_TICK);	2535	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2536	$TICK_WATCHER->start;
1390	},	2537	},
1391	);	2538	);
1392		2539
		2540	{
		2541	BDB::max_poll_time $TICK * 0.1;
		2542	$BDB_POLL_WATCHER = Event->io (
		2543	reentrant => 0,
		2544	fd => BDB::poll_fileno,
		2545	poll => 'r',
		2546	prio => 0,
		2547	data => WF_AUTOCANCEL,
		2548	cb => \&BDB::poll_cb,
		2549	);
		2550	BDB::min_parallel 8;
		2551
		2552	BDB::set_sync_prepare {
		2553	my $status;
		2554	my $current = $Coro::current;
		2555	(
		2556	sub {
		2557	$status = $!;
		2558	$current->ready; undef $current;
		2559	},
		2560	sub {
		2561	Coro::schedule while defined $current;
		2562	$! = $status;
		2563	},
		2564	)
		2565	};
		2566
		2567	unless ($DB_ENV) {
		2568	$DB_ENV = BDB::db_env_create;
		2569
		2570	cf::sync_job {
		2571	eval {
		2572	BDB::db_env_open
		2573	$DB_ENV,
		2574	$BDB_ENV_DIR,
		2575	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2576	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2577	0666;
		2578
		2579	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2580
		2581	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2582	$DB_ENV->set_lk_detect;
		2583	};
		2584
		2585	cf::cleanup "db_env_open(db): $@" if $@;
		2586	};
		2587	}
		2588	}
		2589
		2590	{
		2591	IO::AIO::min_parallel 8;
		2592
		2593	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2594	IO::AIO::max_poll_time $TICK * 0.1;
1394		2595	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2596	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2597	data => WF_AUTOCANCEL,
		2598	fd => IO::AIO::poll_fileno,
		2599	poll => 'r',
		2600	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2601	cb => \&IO::AIO::poll_cb,
		2602	);
		2603	}
1400		2604
1401	# we must not ever block the main coroutine	2605	END { cf::emergency_save }
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		2606
1410	1	2607	1
1411		2608

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