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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 1.234 by root, Thu Apr 5 13:44:31 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18	use Coro::AIO;	20	use Coro::AIO;
19		21
		22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
20	use Fcntl;	25	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	26	use YAML::Syck ();
		27	use IO::AIO 2.32 ();
23	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
24		30
		31	# configure various modules to our taste
		32	#
		33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		35
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	36	$Event::Eval = 1; # no idea why this is required, but it is
26		37
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	39	$YAML::Syck::ImplicitUnicode = 1;
29		40
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		42
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		44
34	our %COMMAND = ();	45	our %COMMAND = ();
35	our %COMMAND_TIME = ();	46	our %COMMAND_TIME = ();
		47
		48	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	49	our %EXTCMD = ();
		50	our %EXT_CORO = (); # coroutines bound to extensions
		51	our %EXT_MAP = (); # pluggable maps
37		52
		53	our $RELOAD; # number of reloads so far
38	our @EVENT;	54	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	55	our $LIBDIR = datadir . "/ext";
40		56
41	our $TICK = MAX_TIME * 1e-6;	57	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	58	our $TICK_WATCHER;
		59	our $AIO_POLL_WATCHER;
		60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	61	our $NEXT_TICK;
44	our $NOW;	62	our $NOW;
		63	our $USE_FSYNC = 1; # use fsync to write maps - default off
		64
		65	our $BDB_POLL_WATCHER;
		66	our $DB_ENV;
45		67
46	our %CFG;	68	our %CFG;
47		69
48	our $UPTIME; $UPTIME ||= time;	70	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	71	our $RUNTIME;
50		72
		73	our %PLAYER; # all users
51	our %MAP; # all maps	74	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	75	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	76	our $RANDOM_MAPS = cf::localdir . "/random";
		77	our $BDB_ENV_DIR = cf::localdir . "/db";
		78
		79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		81
		82	# used to convert map paths into valid unix filenames by replacing / by ∕
		83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		84
55	binmode STDOUT;	85	binmode STDOUT;
56	binmode STDERR;	86	binmode STDERR;
57		87
58	# read virtual server time, if available	88	# read virtual server time, if available
…		…
64		94
65	mkdir cf::localdir;	95	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	96	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	97	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	98	mkdir cf::localdir . "/" . cf::uniquedir;
		99	mkdir $RANDOM_MAPS;
		100	mkdir $BDB_ENV_DIR;
69		101
70	our %EXT_CORO;	102	our $EMERGENCY_POSITION;
		103
		104	sub cf::map::normalise;
71		105
72	#############################################################################	106	#############################################################################
73		107
74	=head2 GLOBAL VARIABLES	108	=head2 GLOBAL VARIABLES
75		109
…		…
99		133
100	=item %cf::CFG	134	=item %cf::CFG
101		135
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	136	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	137	from wherever your confdir points to.
		138
		139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		140
		141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		143	processing has been done. Call C<< ->wait >> on them to maximise the
		144	window of cpu time available, or simply to synchronise to the server tick.
104		145
105	=back	146	=back
106		147
107	=cut	148	=cut
108		149
…		…
112	utf8::encode $msg;	153	utf8::encode $msg;
113		154
114	$msg .= "\n"	155	$msg .= "\n"
115	unless $msg =~ /\n$/;	156	unless $msg =~ /\n$/;
116		157
117	LOG llevError, "cfperl: $msg";	158	LOG llevError, $msg;
118	};	159	};
119	}	160	}
120		161
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		181
141	$Event::DIED = sub {	182	$Event::DIED = sub {
142	warn "error in event callback: @_";	183	warn "error in event callback: @_";
143	};	184	};
144		185
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	186	=head2 UTILITY FUNCTIONS
150		187
151	=over 4	188	=over 4
152		189
153	=cut	190	=item dumpval $ref
154		191
		192	=cut
		193
		194	sub dumpval {
		195	eval {
		196	local $SIG{__DIE__};
		197	my $d;
		198	if (1) {
		199	$d = new Data::Dumper([$_[0]], ["*var"]);
		200	$d->Terse(1);
		201	$d->Indent(2);
		202	$d->Quotekeys(0);
		203	$d->Useqq(1);
		204	#$d->Bless(...);
		205	$d->Seen($_[1]) if @_ > 1;
		206	$d = $d->Dump();
		207	}
		208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		209	$d
		210	} || "[unable to dump $_[0]: '$@']";
		211	}
		212
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
156		214
157	=item $ref = cf::from_json $json	215	=item $ref = cf::from_json $json
158		216
159	Converts a JSON string into the corresponding perl data structure.	217	Converts a JSON string into the corresponding perl data structure.
160		218
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	219	=item $json = cf::to_json $ref
169		220
170	Converts a perl data structure into its JSON representation.	221	Converts a perl data structure into its JSON representation.
171		222
172	=cut	223	=item cf::lock_wait $string
173		224
174	sub to_json($) {	225	Wait until the given lock is available. See cf::lock_acquire.
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		226
179	# main coro must never ever "block" except in Event	227	=item my $lock = cf::lock_acquire $string
180	# sync_job ensures this by running the job in a coroutine	228
181	# and waiting in Event while the server is otherwise frozen	229	Wait until the given lock is available and then acquires it and returns
		230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		231	for example when the coroutine gets canceled), the lock is automatically
		232	returned.
		233
		234	Lock names should begin with a unique identifier (for example, cf::map::find
		235	uses map_find and cf::map::load uses map_load).
		236
		237	=cut
		238
		239	our %LOCK;
		240
		241	sub lock_wait($) {
		242	my ($key) = @_;
		243
		244	# wait for lock, if any
		245	while ($LOCK{$key}) {
		246	push @{ $LOCK{$key} }, $Coro::current;
		247	Coro::schedule;
		248	}
		249	}
		250
		251	sub lock_acquire($) {
		252	my ($key) = @_;
		253
		254	# wait, to be sure we are not locked
		255	lock_wait $key;
		256
		257	$LOCK{$key} = [];
		258
		259	Coro::guard {
		260	# wake up all waiters, to be on the safe side
		261	$_->ready for @{ delete $LOCK{$key} };
		262	}
		263	}
		264
		265	sub freeze_mainloop {
		266	return unless $TICK_WATCHER->is_active;
		267
		268	my $guard = Coro::guard {
		269	$TICK_WATCHER->start;
		270	};
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
182	sub sync_job(&) {	298	sub sync_job(&) {
183	my ($job) = @_;	299	my ($job) = @_;
184		300
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 == $Coro::main) {	301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
		317
198	while ($busy) {	318	while ($busy) {
199	Coro::cede_notself;	319	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	320	}
		321
		322	wantarray ? @res : $res[0]
202	} else {	323	} else {
203	$coro->join;	324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
204	}	327	}
205
206	wantarray ? @res : $res[0]
207	}	328	}
208		329
209	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
210		331
211	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
213		334
214	=cut	335	=cut
215		336
216	sub coro(&) {	337	sub async_ext(&) {
217	my $cb = shift;	338	my $cb = shift;
218		339
219	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		341
226	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
228	});	344	});
229	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
230		346
231	$coro	347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $guard = cf::lock_acquire "write_runtime";
		352
		353	my $runtime = cf::localdir . "/runtime";
		354
		355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		356	or return;
		357
		358	my $value = $cf::RUNTIME + 90 + 10;
		359	# 10 is the runtime save interval, for a monotonic clock
		360	# 60 allows for the watchdog to kill the server.
		361
		362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		363	and return;
		364
		365	# always fsync - this file is important
		366	aio_fsync $fh
		367	and return;
		368
		369	close $fh
		370	or return;
		371
		372	aio_rename "$runtime~", $runtime
		373	and return;
		374
		375	1
		376	}
		377
		378	=item cf::datalog type => key => value, ...
		379
		380	Log a datalog packet of the given type with the given key-value pairs.
		381
		382	=cut
		383
		384	sub datalog($@) {
		385	my ($type, %kv) = @_;
		386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
232	}	387	}
233		388
234	=back	389	=back
235		390
236	=cut	391	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	523	our @CB_MAP = ();
369		524
370	my %attachment;	525	my %attachment;
371		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
372	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
374		535
375	use sort 'stable';	536	use sort 'stable';
376		537
…		…
547	# object support	708	# object support
548		709
549	sub reattach {	710	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		715
553	my $registry = $obj->registry;	716	my $registry = $obj->registry;
554		717
555	@$registry = ();	718	@$registry = ();
556		719
…		…
603	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
604		767
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	771	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	772	close $fh;
610		773
611	if (@$objs) {	774	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	776	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	778	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	779	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	780	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
619	}	782	}
620	} else {	783	} else {
621	aio_unlink "$filename.pst";	784	aio_unlink "$filename.pst";
…		…
649	or return;	812	or return;
650		813
651	unless (aio_stat "$filename.pst") {	814	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	815	(aio_load "$filename.pst", $av) >= 0
653	or return;	816	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
655	}	818	}
656		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	822	return ($data, $av);
658	}	823	}
659		824
660	#############################################################################	825	#############################################################################
661	# command handling &c	826	# command handling &c
…		…
686	=cut	851	=cut
687		852
688	sub register_extcmd {	853	sub register_extcmd {
689	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
690		855
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
695	}	857	}
696		858
697	cf::player->attach (	859	cf::player->attach (
698	on_command => sub {	860	on_command => sub {
699	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
712		874
713	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
714		876
715	if (ref $msg) {	877	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	881	}
720	}	882	}
721	} else {	883	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		886
725	cf::override;	887	cf::override;
726	},	888	},
727	);	889	);
728		890
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	891	sub load_extension {
736	my ($path) = @_;	892	my ($path) = @_;
737		893
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	895	my $base = $1;
740	my $pkg = $1;	896	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
743		899
744	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
745		901
746	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
747	or die "$path: $!";	903	or die "$path: $!";
748		904
749	my $source =	905	my $source =
750	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
753	. "\n};\n1";	909	. "\n};\n1";
754		910
755	eval $source	911	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	913	: "extension disabled.\n";
758		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	915	warn $@;
760	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
761		917	exit 1;
762	# no strict 'refs';	918	}
763	# @{"$pkg\::ISA"} = ext::;	919	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	# }	920	}
778		921
779	# remove commands	922	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	}	923	}
804		924
805	sub load_extensions {	925	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	927	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
812	}	932	}
813	}	933	}
814		934
815	#############################################################################	935	#############################################################################
816	# load/save/clean perl data associated with a map
817		936
818	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/playerdata"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	# rename old playerfiles to new ones
		992	#TODO: remove when no longer required
		993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		995	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		996	aio_unlink +(playerdir $login) . "/$login.pl";
		997
		998	my $pl = load_pl path $login
		999	or return;
		1000	$cf::PLAYER{$login} = $pl
		1001	}
		1002	}
		1003	}
		1004
		1005	sub save($) {
		1006	my ($pl) = @_;
		1007
		1008	return if $pl->{deny_save};
		1009
		1010	my $path = path $pl;
		1011	my $guard = cf::lock_acquire "user_save:$path";
		1012
		1013	return if $pl->{deny_save};
		1014
		1015	aio_mkdir playerdir $pl, 0770;
		1016	$pl->{last_save} = $cf::RUNTIME;
		1017
		1018	$pl->save_pl ($path);
		1019	Coro::cede;
		1020	}
		1021
		1022	sub new($) {
		1023	my ($login) = @_;
		1024
		1025	my $self = create;
		1026
		1027	$self->ob->name ($login);
		1028	$self->{deny_save} = 1;
		1029
		1030	$cf::PLAYER{$login} = $self;
		1031
		1032	$self
		1033	}
		1034
		1035	=item $pl->quit_character
		1036
		1037	Nukes the player without looking back. If logged in, the connection will
		1038	be destroyed. May block for a long time.
		1039
		1040	=cut
		1041
		1042	sub quit_character {
		1043	my ($pl) = @_;
		1044
		1045	my $name = $pl->ob->name;
		1046
		1047	$pl->{deny_save} = 1;
		1048	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1049
		1050	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1051	$pl->deactivate;
		1052	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1053	$pl->ns->destroy if $pl->ns;
		1054
		1055	my $path = playerdir $pl;
		1056	my $temp = "$path~$cf::RUNTIME~deleting~";
		1057	aio_rename $path, $temp;
		1058	delete $cf::PLAYER{$pl->ob->name};
		1059	$pl->destroy;
		1060
		1061	my $prefix = qr<^~\Q$name\E/>;
		1062
		1063	# nuke player maps
		1064	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1065
		1066	IO::AIO::aio_rmtree $temp;
		1067	}
		1068
		1069	=item $pl->kick
		1070
		1071	Kicks a player out of the game. This destroys the connection.
		1072
		1073	=cut
		1074
		1075	sub kick {
		1076	my ($pl, $kicker) = @_;
		1077
		1078	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1079	$pl->killer ("kicked");
		1080	$pl->ns->destroy;
		1081	}
		1082
		1083	=item cf::player::list_logins
		1084
		1085	Returns am arrayref of all valid playernames in the system, can take a
		1086	while and may block, so not sync_job-capable, ever.
		1087
		1088	=cut
		1089
		1090	sub list_logins {
		1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1092	or return [];
		1093
		1094	my @logins;
		1095
		1096	for my $login (@$dirs) {
		1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1098	aio_read $fh, 0, 512, my $buf, 0 or next;
		1099	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1100
		1101	utf8::decode $login;
		1102	push @logins, $login;
		1103	}
		1104
		1105	\@logins
		1106	}
		1107
		1108	=item $player->maps
		1109
		1110	Returns an arrayref of map paths that are private for this
		1111	player. May block.
		1112
		1113	=cut
		1114
		1115	sub maps($) {
		1116	my ($pl) = @_;
		1117
		1118	$pl = ref $pl ? $pl->ob->name : $pl;
		1119
		1120	my $files = aio_readdir playerdir $pl
		1121	or return;
		1122
		1123	my @paths;
		1124
		1125	for (@$files) {
		1126	utf8::decode $_;
		1127	next if /\.(?:pl|pst)$/;
		1128	next unless /^$PATH_SEP/o;
		1129
		1130	push @paths, cf::map::normalise "~$pl/$_";
		1131	}
		1132
		1133	\@paths
		1134	}
		1135
		1136	=item $player->ext_reply ($msgid, %msg)
		1137
		1138	Sends an ext reply to the player.
		1139
		1140	=cut
		1141
		1142	sub ext_reply($$%) {
		1143	my ($self, $id, %msg) = @_;
		1144
		1145	$msg{msgid} = $id;
		1146
		1147	$self->send ("ext " . cf::to_json \%msg);
		1148	}
		1149
		1150	=item $player->ext_event ($type, %msg)
		1151
		1152	Sends an ext event to the client.
		1153
		1154	=cut
		1155
		1156	sub ext_event($$%) {
		1157	my ($self, $type, %msg) = @_;
		1158
		1159	$self->ns->ext_event ($type, %msg);
		1160	}
		1161
		1162	package cf;
		1163
		1164	=back
		1165
		1166
		1167	=head3 cf::map
		1168
		1169	=over 4
		1170
		1171	=cut
		1172
		1173	package cf::map;
		1174
		1175	use Fcntl;
		1176	use Coro::AIO;
		1177
		1178	use overload
		1179	'""' => \&as_string,
		1180	fallback => 1;
		1181
		1182	our $MAX_RESET = 3600;
		1183	our $DEFAULT_RESET = 3000;
		1184
		1185	sub generate_random_map {
		1186	my ($self, $rmp) = @_;
		1187	# mit "rum" bekleckern, nicht
		1188	$self->_create_random_map (
		1189	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1190	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1191	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1192	$rmp->{exit_on_final_map},
		1193	$rmp->{xsize}, $rmp->{ysize},
		1194	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1195	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1196	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1197	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1198	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1199	(cf::region::find $rmp->{region}), $rmp->{custom}
		1200	)
		1201	}
		1202
		1203	=item cf::map->register ($regex, $prio)
		1204
		1205	Register a handler for the map path matching the given regex at the
		1206	givne priority (higher is better, built-in handlers have priority 0, the
		1207	default).
		1208
		1209	=cut
		1210
		1211	sub register {
		1212	my (undef, $regex, $prio) = @_;
		1213	my $pkg = caller;
		1214
		1215	no strict;
		1216	push @{"$pkg\::ISA"}, __PACKAGE__;
		1217
		1218	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1219	}
		1220
		1221	# also paths starting with '/'
		1222	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1223
		1224	sub thawer_merge {
		1225	my ($self, $merge) = @_;
		1226
		1227	# we have to keep some variables in memory intact
		1228	local $self->{path};
		1229	local $self->{load_path};
		1230	local $self->{deny_save};
		1231	local $self->{deny_reset};
		1232
		1233	$self->SUPER::thawer_merge ($merge);
		1234	}
		1235
		1236	sub normalise {
		1237	my ($path, $base) = @_;
		1238
		1239	$path = "$path"; # make sure its a string
		1240
		1241	$path =~ s/\.map$//;
		1242
		1243	# map plan:
		1244	#
		1245	# /! non-realised random map exit (special hack!)
		1246	# {... are special paths that are not being touched
		1247	# ?xxx/... are special absolute paths
		1248	# ?random/... random maps
		1249	# /... normal maps
		1250	# ~user/... per-player map of a specific user
		1251
		1252	$path =~ s/$PATH_SEP/\//go;
		1253
		1254	# treat it as relative path if it starts with
		1255	# something that looks reasonable
		1256	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1257	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1258
		1259	$base =~ s{[^/]+/?$}{};
		1260	$path = "$base/$path";
		1261	}
		1262
		1263	for ($path) {
		1264	redo if s{//}{/};
		1265	redo if s{/\.?/}{/};
		1266	redo if s{/[^/]+/\.\./}{/};
		1267	}
		1268
		1269	$path
		1270	}
		1271
		1272	sub new_from_path {
		1273	my (undef, $path, $base) = @_;
		1274
		1275	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1276
		1277	$path = normalise $path, $base;
		1278
		1279	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1280	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1281	my $self = bless cf::map::new, $pkg;
		1282	$self->{path} = $path; $self->path ($path);
		1283	$self->init; # pass $1 etc.
		1284	return $self;
		1285	}
		1286	}
		1287
		1288	Carp::carp "unable to resolve path '$path' (base '$base').";
		1289	()
		1290	}
		1291
		1292	sub init {
		1293	my ($self) = @_;
		1294
		1295	$self
		1296	}
		1297
		1298	sub as_string {
		1299	my ($self) = @_;
		1300
		1301	"$self->{path}"
		1302	}
		1303
		1304	# the displayed name, this is a one way mapping
		1305	sub visible_name {
		1306	&as_string
		1307	}
		1308
		1309	# the original (read-only) location
		1310	sub load_path {
		1311	my ($self) = @_;
		1312
		1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1314	}
		1315
		1316	# the temporary/swap location
		1317	sub save_path {
		1318	my ($self) = @_;
		1319
		1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1322	}
		1323
		1324	# the unique path, undef == no special unique path
		1325	sub uniq_path {
		1326	my ($self) = @_;
		1327
		1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1330	}
		1331
		1332	# and all this just because we cannot iterate over
		1333	# all maps in C++...
		1334	sub change_all_map_light {
		1335	my ($change) = @_;
		1336
		1337	$_->change_map_light ($change)
		1338	for grep $_->outdoor, values %cf::MAP;
		1339	}
		1340
		1341	sub unlink_save {
		1342	my ($self) = @_;
		1343
		1344	utf8::encode (my $save = $self->save_path);
		1345	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1346	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1347	}
		1348
		1349	sub load_header_from($) {
		1350	my ($self, $path) = @_;
		1351
		1352	utf8::encode $path;
		1353	#aio_open $path, O_RDONLY, 0
		1354	# or return;
		1355
		1356	$self->_load_header ($path)
		1357	or return;
		1358
		1359	$self->{load_path} = $path;
		1360
		1361	1
		1362	}
		1363
		1364	sub load_header_orig {
		1365	my ($self) = @_;
		1366
		1367	$self->load_header_from ($self->load_path)
		1368	}
		1369
		1370	sub load_header_temp {
		1371	my ($self) = @_;
		1372
		1373	$self->load_header_from ($self->save_path)
		1374	}
		1375
		1376	sub prepare_temp {
		1377	my ($self) = @_;
		1378
		1379	$self->last_access ((delete $self->{last_access})
		1380	|| $cf::RUNTIME); #d#
		1381	# safety
		1382	$self->{instantiate_time} = $cf::RUNTIME
		1383	if $self->{instantiate_time} > $cf::RUNTIME;
		1384	}
		1385
		1386	sub prepare_orig {
		1387	my ($self) = @_;
		1388
		1389	$self->{load_original} = 1;
		1390	$self->{instantiate_time} = $cf::RUNTIME;
		1391	$self->last_access ($cf::RUNTIME);
		1392	$self->instantiate;
		1393	}
		1394
		1395	sub load_header {
		1396	my ($self) = @_;
		1397
		1398	if ($self->load_header_temp) {
		1399	$self->prepare_temp;
		1400	} else {
		1401	$self->load_header_orig
		1402	or return;
		1403	$self->prepare_orig;
		1404	}
		1405
		1406	1
		1407	}
		1408
		1409	sub find;
		1410	sub find {
		1411	my ($path, $origin) = @_;
		1412
		1413	$path = normalise $path, $origin && $origin->path;
		1414
		1415	cf::lock_wait "map_find:$path";
		1416
		1417	$cf::MAP{$path} || do {
		1418	my $guard = cf::lock_acquire "map_find:$path";
		1419	my $map = new_from_path cf::map $path
		1420	or return;
		1421
		1422	$map->{last_save} = $cf::RUNTIME;
		1423
		1424	$map->load_header
		1425	or return;
		1426
		1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1428	# doing this can freeze the server in a sync job, obviously
		1429	#$cf::WAIT_FOR_TICK->wait;
		1430	$map->reset;
		1431	undef $guard;
		1432	return find $path;
		1433	}
		1434
		1435	$cf::MAP{$path} = $map
		1436	}
		1437	}
		1438
		1439	sub pre_load { }
		1440	sub post_load { }
		1441
		1442	sub load {
		1443	my ($self) = @_;
		1444
		1445	local $self->{deny_reset} = 1; # loading can take a long time
		1446
		1447	my $path = $self->{path};
		1448	my $guard = cf::lock_acquire "map_load:$path";
		1449
		1450	return if $self->in_memory != cf::MAP_SWAPPED;
		1451
		1452	$self->in_memory (cf::MAP_LOADING);
		1453
		1454	$self->alloc;
		1455
		1456	$self->pre_load;
		1457
		1458	$self->_load_objects ($self->{load_path}, 1)
		1459	or return;
		1460
		1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1462	if delete $self->{load_original};
		1463
		1464	if (my $uniq = $self->uniq_path) {
		1465	utf8::encode $uniq;
		1466	if (aio_open $uniq, O_RDONLY, 0) {
		1467	$self->clear_unique_items;
		1468	$self->_load_objects ($uniq, 0);
		1469	}
		1470	}
		1471
		1472	Coro::cede;
		1473
		1474	# now do the right thing for maps
		1475	$self->link_multipart_objects;
		1476
		1477	unless ($self->{deny_activate}) {
		1478	$self->decay_objects;
		1479	$self->fix_auto_apply;
		1480	$self->update_buttons;
		1481	Coro::cede;
		1482	$self->set_darkness_map;
		1483	$self->difficulty ($self->estimate_difficulty)
		1484	unless $self->difficulty;
		1485	Coro::cede;
		1486	$self->activate;
		1487	}
		1488
		1489	$self->post_load;
		1490
		1491	$self->in_memory (cf::MAP_IN_MEMORY);
		1492	}
		1493
		1494	sub customise_for {
		1495	my ($self, $ob) = @_;
		1496
		1497	return find "~" . $ob->name . "/" . $self->{path}
		1498	if $self->per_player;
		1499
		1500	$self
		1501	}
		1502
		1503	# find and load all maps in the 3x3 area around a map
		1504	sub load_diag {
819	my ($map) = @_;	1505	my ($map) = @_;
820		1506
821	my $path = $map->tmpname;	1507	my @diag; # diagonal neighbours
822	defined $path or return;
823		1508
824	unlink "$path.pst";	1509	for (0 .. 3) {
825	};	1510	my $neigh = $map->tile_path ($_)
		1511	or next;
		1512	$neigh = find $neigh, $map
		1513	or next;
		1514	$neigh->load;
826		1515
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1518	}
828		1519
829	#############################################################################	1520	for (@diag) {
830	# load/save perl data associated with player->ob objects	1521	my $neigh = find @$_
831		1522	or next;
832	sub all_objects(@) {	1523	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1524	}
834	}	1525	}
835		1526
836	# TODO: compatibility cruft, remove when no longer needed	1527	sub find_sync {
837	cf::player->attach (	1528	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1529
841	for my $o (all_objects $pl->ob) {	1530	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1531	}
843	$o->set_ob_key_value ("_perl_data");
844		1532
845	%$o = %{ Storable::thaw pack "H*", $value };	1533	sub do_load_sync {
		1534	my ($map) = @_;
		1535
		1536	cf::sync_job { $map->load };
		1537	}
		1538
		1539	our %MAP_PREFETCH;
		1540	our $MAP_PREFETCHER = undef;
		1541
		1542	sub find_async {
		1543	my ($path, $origin) = @_;
		1544
		1545	$path = normalise $path, $origin && $origin->{path};
		1546
		1547	if (my $map = $cf::MAP{$path}) {
		1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1549	}
		1550
		1551	undef $MAP_PREFETCH{$path};
		1552	$MAP_PREFETCHER ||= cf::async {
		1553	while (%MAP_PREFETCH) {
		1554	for my $path (keys %MAP_PREFETCH) {
		1555	my $map = find $path
		1556	or next;
		1557	$map->load;
		1558
		1559	delete $MAP_PREFETCH{$path};
846	}	1560	}
847	}	1561	}
		1562	undef $MAP_PREFETCHER;
		1563	};
		1564	$MAP_PREFETCHER->prio (6);
		1565
		1566	()
		1567	}
		1568
		1569	sub save {
		1570	my ($self) = @_;
		1571
		1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1573
		1574	$self->{last_save} = $cf::RUNTIME;
		1575
		1576	return unless $self->dirty;
		1577
		1578	my $save = $self->save_path; utf8::encode $save;
		1579	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1580
		1581	$self->{load_path} = $save;
		1582
		1583	return if $self->{deny_save};
		1584
		1585	local $self->{last_access} = $self->last_access;#d#
		1586
		1587	cf::async {
		1588	$_->contr->save for $self->players;
		1589	};
		1590
		1591	if ($uniq) {
		1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1593	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1594	} else {
		1595	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1596	}
849	);	1597	}
850		1598
851	#############################################################################	1599	sub swap_out {
		1600	my ($self) = @_;
852		1601
853	=head2 CORE EXTENSIONS	1602	# save first because save cedes
		1603	$self->save;
854		1604
855	Functions and methods that extend core crossfire objects.	1605	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1606
857	=head3 cf::player	1607	return if $self->players;
		1608	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1609	return if $self->{deny_save};
		1610
		1611	$self->clear;
		1612	$self->in_memory (cf::MAP_SWAPPED);
		1613	}
		1614
		1615	sub reset_at {
		1616	my ($self) = @_;
		1617
		1618	# TODO: safety, remove and allow resettable per-player maps
		1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1620	return 1e99 if $self->{deny_reset};
		1621
		1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1624
		1625	$time + $to
		1626	}
		1627
		1628	sub should_reset {
		1629	my ($self) = @_;
		1630
		1631	$self->reset_at <= $cf::RUNTIME
		1632	}
		1633
		1634	sub reset {
		1635	my ($self) = @_;
		1636
		1637	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1638
		1639	return if $self->players;
		1640	return if $self->isa ("ext::map_per_player");#d#
		1641
		1642	warn "resetting map ", $self->path;#d#
		1643
		1644	$self->in_memory (cf::MAP_SWAPPED);
		1645
		1646	# need to save uniques path
		1647	unless ($self->{deny_save}) {
		1648	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1649
		1650	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1651	if $uniq;
		1652	}
		1653
		1654	delete $cf::MAP{$self->path};
		1655
		1656	$self->clear;
		1657
		1658	$_->clear_links_to ($self) for values %cf::MAP;
		1659
		1660	$self->unlink_save;
		1661	$self->destroy;
		1662	}
		1663
		1664	my $nuke_counter = "aaaa";
		1665
		1666	sub nuke {
		1667	my ($self) = @_;
		1668
		1669	delete $cf::MAP{$self->path};
		1670
		1671	$self->unlink_save;
		1672
		1673	bless $self, "cf::map";
		1674	delete $self->{deny_reset};
		1675	$self->{deny_save} = 1;
		1676	$self->reset_timeout (1);
		1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1678
		1679	$cf::MAP{$self->path} = $self;
		1680
		1681	$self->reset; # polite request, might not happen
		1682	}
		1683
		1684	=item cf::map::unique_maps
		1685
		1686	Returns an arrayref of paths of all shared maps that have
		1687	instantiated unique items. May block.
		1688
		1689	=cut
		1690
		1691	sub unique_maps() {
		1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1693	or return;
		1694
		1695	my @paths;
		1696
		1697	for (@$files) {
		1698	utf8::decode $_;
		1699	next if /\.pst$/;
		1700	next unless /^$PATH_SEP/o;
		1701
		1702	push @paths, cf::map::normalise $_;
		1703	}
		1704
		1705	\@paths
		1706	}
		1707
		1708	package cf;
		1709
		1710	=back
		1711
		1712	=head3 cf::object
		1713
		1714	=cut
		1715
		1716	package cf::object;
858		1717
859	=over 4	1718	=over 4
860		1719
861	=item cf::player::exists $login	1720	=item $ob->inv_recursive
862		1721
863	Returns true when the given account exists.	1722	Returns the inventory of the object _and_ their inventories, recursively.
864		1723
865	=cut	1724	=cut
866		1725
867	sub cf::player::exists($) {	1726	sub inv_recursive_;
868	cf::player::find $_[0]	1727	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1728	map { $_, inv_recursive_ $_->inv } @_
870	}	1729	}
871		1730
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1731	sub inv_recursive {
873		1732	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	}	1733	}
		1734
		1735	package cf;
885		1736
886	=back	1737	=back
887		1738
888	=head3 cf::object::player	1739	=head3 cf::object::player
889		1740
…		…
927	(ref $cf::CFG{"may_$access"}	1778	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1780	: $cf::CFG{"may_$access"})
930	}	1781	}
931		1782
		1783	=item $player_object->enter_link
		1784
		1785	Freezes the player and moves him/her to a special map (C<{link}>).
		1786
		1787	The player should be reasonably safe there for short amounts of time. You
		1788	I<MUST> call C<leave_link> as soon as possible, though.
		1789
		1790	Will never block.
		1791
		1792	=item $player_object->leave_link ($map, $x, $y)
		1793
		1794	Moves the player out of the special C<{link}> map onto the specified
		1795	map. If the map is not valid (or omitted), the player will be moved back
		1796	to the location he/she was before the call to C<enter_link>, or, if that
		1797	fails, to the emergency map position.
		1798
		1799	Might block.
		1800
		1801	=cut
		1802
		1803	sub link_map {
		1804	unless ($LINK_MAP) {
		1805	$LINK_MAP = cf::map::find "{link}"
		1806	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1807	$LINK_MAP->load;
		1808	}
		1809
		1810	$LINK_MAP
		1811	}
		1812
		1813	sub cf::object::player::enter_link {
		1814	my ($self) = @_;
		1815
		1816	$self->deactivate_recursive;
		1817
		1818	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1819
		1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1821	if $self->map;
		1822
		1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1824	}
		1825
		1826	sub cf::object::player::leave_link {
		1827	my ($self, $map, $x, $y) = @_;
		1828
		1829	my $link_pos = delete $self->{_link_pos};
		1830
		1831	unless ($map) {
		1832	# restore original map position
		1833	($map, $x, $y) = @{ $link_pos || [] };
		1834	$map = cf::map::find $map;
		1835
		1836	unless ($map) {
		1837	($map, $x, $y) = @$EMERGENCY_POSITION;
		1838	$map = cf::map::find $map
		1839	or die "FATAL: cannot load emergency map\n";
		1840	}
		1841	}
		1842
		1843	($x, $y) = (-1, -1)
		1844	unless (defined $x) && (defined $y);
		1845
		1846	# use -1 or undef as default coordinates, not 0, 0
		1847	($x, $y) = ($map->enter_x, $map->enter_y)
		1848	if $x <=0 && $y <= 0;
		1849
		1850	$map->load;
		1851	$map->load_diag;
		1852
		1853	return unless $self->contr->active;
		1854	$self->activate_recursive;
		1855
		1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1857	$self->enter_map ($map, $x, $y);
		1858	}
		1859
		1860	cf::player->attach (
		1861	on_logout => sub {
		1862	my ($pl) = @_;
		1863
		1864	# abort map switching before logout
		1865	if ($pl->ob->{_link_pos}) {
		1866	cf::sync_job {
		1867	$pl->ob->leave_link
		1868	};
		1869	}
		1870	},
		1871	on_login => sub {
		1872	my ($pl) = @_;
		1873
		1874	# try to abort aborted map switching on player login :)
		1875	# should happen only on crashes
		1876	if ($pl->ob->{_link_pos}) {
		1877	$pl->ob->enter_link;
		1878	(async {
		1879	$pl->ob->reply (undef,
		1880	"There was an internal problem at your last logout, "
		1881	. "the server will try to bring you to your intended destination in a second.",
		1882	cf::NDI_RED);
		1883	# we need this sleep as the login has a concurrent enter_exit running
		1884	# and this sleep increases chances of the player not ending up in scorn
		1885	Coro::Timer::sleep 1;
		1886	$pl->ob->leave_link;
		1887	})->prio (2);
		1888	}
		1889	},
		1890	);
		1891
		1892	=item $player_object->goto ($path, $x, $y)
		1893
		1894	=cut
		1895
		1896	sub cf::object::player::goto {
		1897	my ($self, $path, $x, $y) = @_;
		1898
		1899	$self->enter_link;
		1900
		1901	(async {
		1902	my $map = eval {
		1903	my $map = cf::map::find $path;
		1904	$map = $map->customise_for ($self) if $map;
		1905	$map
		1906	} or
		1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1908
		1909	$self->leave_link ($map, $x, $y);
		1910	})->prio (1);
		1911	}
		1912
		1913	=item $player_object->enter_exit ($exit_object)
		1914
		1915	=cut
		1916
		1917	sub parse_random_map_params {
		1918	my ($spec) = @_;
		1919
		1920	my $rmp = { # defaults
		1921	xsize => (cf::rndm 15, 40),
		1922	ysize => (cf::rndm 15, 40),
		1923	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1924	#layout => string,
		1925	};
		1926
		1927	for (split /\n/, $spec) {
		1928	my ($k, $v) = split /\s+/, $_, 2;
		1929
		1930	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1931	}
		1932
		1933	$rmp
		1934	}
		1935
		1936	sub prepare_random_map {
		1937	my ($exit) = @_;
		1938
		1939	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1940
		1941	# all this does is basically replace the /! path by
		1942	# a new random map path (?random/...) with a seed
		1943	# that depends on the exit object
		1944
		1945	my $rmp = parse_random_map_params $exit->msg;
		1946
		1947	if ($exit->map) {
		1948	$rmp->{region} = $exit->region->name;
		1949	$rmp->{origin_map} = $exit->map->path;
		1950	$rmp->{origin_x} = $exit->x;
		1951	$rmp->{origin_y} = $exit->y;
		1952	}
		1953
		1954	$rmp->{random_seed} ||= $exit->random_seed;
		1955
		1956	my $data = cf::to_json $rmp;
		1957	my $md5 = Digest::MD5::md5_hex $data;
		1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1959
		1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1961	aio_write $fh, 0, (length $data), $data, 0;
		1962	undef $fh;
		1963	aio_rename "$meta~", $meta;
		1964
		1965	$exit->slaying ("?random/$md5");
		1966	$exit->msg (undef);
		1967	}
		1968	}
		1969
		1970	sub cf::object::player::enter_exit {
		1971	my ($self, $exit) = @_;
		1972
		1973	return unless $self->type == cf::PLAYER;
		1974
		1975	if ($exit->slaying eq "/!") {
		1976	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1977	# the problem is that $exit might not survive long enough
		1978	# so it needs to be done right now, right here
		1979	cf::sync_job { prepare_random_map $exit };
		1980	}
		1981
		1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1983	my $hp = $exit->stats->hp;
		1984	my $sp = $exit->stats->sp;
		1985
		1986	$self->enter_link;
		1987
		1988	(async {
		1989	$self->deactivate_recursive; # just to be sure
		1990	unless (eval {
		1991	$self->goto ($slaying, $hp, $sp);
		1992
		1993	1;
		1994	}) {
		1995	$self->message ("Something went wrong deep within the crossfire server. "
		1996	. "I'll try to bring you back to the map you were before. "
		1997	. "Please report this to the dungeon master!",
		1998	cf::NDI_UNIQUE | cf::NDI_RED);
		1999
		2000	warn "ERROR in enter_exit: $@";
		2001	$self->leave_link;
		2002	}
		2003	})->prio (1);
		2004	}
		2005
932	=head3 cf::client	2006	=head3 cf::client
933		2007
934	=over 4	2008	=over 4
935		2009
936	=item $client->send_drawinfo ($text, $flags)	2010	=item $client->send_drawinfo ($text, $flags)
…		…
942		2016
943	sub cf::client::send_drawinfo {	2017	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2018	my ($self, $text, $flags) = @_;
945		2019
946	utf8::encode $text;	2020	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2022	}
949		2023
		2024	=item $client->ext_event ($type, %msg)
		2025
		2026	Sends an exti event to the client.
		2027
		2028	=cut
		2029
		2030	sub cf::client::ext_event($$%) {
		2031	my ($self, $type, %msg) = @_;
		2032
		2033	$msg{msgtype} = "event_$type";
		2034	$self->send_packet ("ext " . cf::to_json \%msg);
		2035	}
950		2036
951	=item $success = $client->query ($flags, "text", \&cb)	2037	=item $success = $client->query ($flags, "text", \&cb)
952		2038
953	Queues a query to the client, calling the given callback with	2039	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
979	on_reply => sub {	2065	on_reply => sub {
980	my ($ns, $msg) = @_;	2066	my ($ns, $msg) = @_;
981		2067
982	# this weird shuffling is so that direct followup queries	2068	# this weird shuffling is so that direct followup queries
983	# get handled first	2069	# get handled first
984	my $queue = delete $ns->{query_queue};	2070	my $queue = delete $ns->{query_queue}
		2071	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2072
986	(shift @$queue)->[1]->($msg);	2073	(shift @$queue)->[1]->($msg);
		2074	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2075
988	push @{ $ns->{query_queue} }, @$queue;	2076	push @{ $ns->{query_queue} }, @$queue;
989		2077
990	if (@{ $ns->{query_queue} } == @$queue) {	2078	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2079	if (@$queue) {
…		…
995	}	2083	}
996	}	2084	}
997	},	2085	},
998	);	2086	);
999		2087
1000	=item $client->coro (\&cb)	2088	=item $client->async (\&cb)
1001		2089
1002	Create a new coroutine, running the specified callback. The coroutine will	2090	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2091	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2092	or loss of connection).
1005		2093
1006	=cut	2094	=cut
1007		2095
1008	sub cf::client::coro {	2096	sub cf::client::async {
1009	my ($self, $cb) = @_;	2097	my ($self, $cb) = @_;
1010		2098
1011	my $coro; $coro = async {	2099	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2100
1018	$coro->on_destroy (sub {	2101	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2102	delete $self->{_coro}{$coro+0};
1020	});	2103	});
1021		2104
…		…
1054		2137
1055	# here we export the classes and methods available to script code	2138	# here we export the classes and methods available to script code
1056		2139
1057	=pod	2140	=pod
1058		2141
1059	The following fucntions and emthods are available within a safe environment:	2142	The following functions and methods are available within a safe environment:
1060		2143
1061	cf::object contr pay_amount pay_player map	2144	cf::object contr pay_amount pay_player map
1062	cf::object::player player	2145	cf::object::player player
1063	cf::player peaceful	2146	cf::player peaceful
1064	cf::map trigger	2147	cf::map trigger
…		…
1157	The parameter C<$family> should best start with the name of the extension	2240	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2241	using it, it should be unique.
1159		2242
1160	=over 4	2243	=over 4
1161		2244
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	2245	=item $value = cf::db_get $family => $key
1169		2246
1170	Returns a single value from the database	2247	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		2248
1177	=item cf::db_put $family => $key => $value	2249	=item cf::db_put $family => $key => $value
1178		2250
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2251	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		2252
1190	=cut	2253	=cut
1191		2254
1192	our $DB;	2255	our $DB;
1193		2256
1194	{	2257	sub db_init {
		2258	unless ($DB) {
		2259	$DB = BDB::db_create $DB_ENV;
		2260
		2261	cf::sync_job {
		2262	eval {
		2263	$DB->set_flags (BDB::CHKSUM);
		2264
		2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2267	cf::cleanup "db_open(db): $!" if $!;
		2268	};
		2269	cf::cleanup "db_open(db): $@" if $@;
		2270	};
		2271
1195	my $path = cf::localdir . "/database.pst";	2272	my $path = cf::localdir . "/database.pst";
		2273	if (stat $path) {
		2274	cf::sync_job {
		2275	my $pst = Storable::retrieve $path;
1196		2276
1197	sub db_load() {	2277	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2278	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2279	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2280	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2281
1202	my $pid;	2282	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	}	2283	};
1213	}	2284	}
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	});	2285	}
		2286	}
1225		2287
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {	2288	sub db_get($$) {
1232	@_ >= 2	2289	my $key = "$_[0]/$_[1]";
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236		2290
		2291	cf::sync_job {
		2292	BDB::db_get $DB, undef, $key, my $data;
		2293
		2294	$! ? ()
		2295	: Compress::LZF::sthaw $data
		2296	}
		2297	}
		2298
1237	sub db_put($$;$) {	2299	sub db_put($$$) {
1238	if (@_ >= 3) {	2300	BDB::dbreq_pri 4;
1239	$DB->{$_[0]}{$_[1]} = $_[2];	2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2302	}
		2303
		2304	#############################################################################
		2305	# the server's init and main functions
		2306
		2307	sub load_facedata {
		2308	my $path = sprintf "%s/facedata", cf::datadir;
		2309
		2310	warn "loading facedata from $path\n";
		2311
		2312	my $faces;
		2313	0 < aio_load $path, $faces
		2314	or die "$path: $!";
		2315
		2316	Coro::cede;
		2317	$faces = Storable::thaw $faces;
		2318	Coro::cede;
		2319
		2320	my $meta = delete $faces->{""};
		2321	$meta->{version} == 1
		2322	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2323
		2324	while (my ($face, $info) = each %$faces) {
		2325	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2326	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2327	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2328	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2329	Coro::cede;
		2330	}
		2331
		2332	while (my ($face, $info) = each %$faces) {
		2333	next unless $info->{smooth};
		2334	my $idx = cf::face::find $face
		2335	or next;
		2336	if (my $smooth = cf::face::find $info->{smooth}) {
		2337	cf::face::set_smooth $idx, $smooth;
1240	} else {	2338	} else {
1241	$DB->{$_[0]} = $_[1];	2339	warn "smooth face '$info->{smooth}' not found for face '$face'";
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	2340	}
1251	);	2341	Coro::cede;
1252	}	2342	}
1253		2343
1254	#############################################################################	2344	1
1255	# the server's main()	2345	}
		2346
		2347	sub reload_resources {
		2348	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2349	or die "unable to load regions file\n";#d#
		2350	load_facedata
		2351	or die "unable to load facedata\n";#d#
		2352	}
		2353
		2354	sub init {
		2355	reload_resources;
		2356	}
1256		2357
1257	sub cfg_load {	2358	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2359	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2360	or return;
1260		2361
1261	local $/;	2362	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2363	*CFG = YAML::Syck::Load <$fh>;
		2364
		2365	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2366
		2367	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2368	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2369
		2370	if (exists $CFG{mlockall}) {
		2371	eval {
		2372	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2373	and die "WARNING: m(un)lockall failed: $!\n";
		2374	};
		2375	warn $@ if $@;
		2376	}
1263	}	2377	}
1264		2378
1265	sub main {	2379	sub main {
		2380	# we must not ever block the main coroutine
		2381	local $Coro::idle = sub {
		2382	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2383	(async {
		2384	Event::one_event;
		2385	})->prio (Coro::PRIO_MAX);
		2386	};
		2387
1266	cfg_load;	2388	cfg_load;
1267	db_load;	2389	db_init;
1268	load_extensions;	2390	load_extensions;
		2391
		2392	$TICK_WATCHER->start;
1269	Event::loop;	2393	Event::loop;
1270	}	2394	}
1271		2395
1272	#############################################################################	2396	#############################################################################
1273	# initialisation	2397	# initialisation and cleanup
1274		2398
		2399	# install some emergency cleanup handlers
		2400	BEGIN {
		2401	for my $signal (qw(INT HUP TERM)) {
		2402	Event->signal (
		2403	reentrant => 0,
		2404	data => WF_AUTOCANCEL,
		2405	signal => $signal,
		2406	prio => 0,
		2407	cb => sub {
		2408	cf::cleanup "SIG$signal";
		2409	},
		2410	);
		2411	}
		2412	}
		2413
		2414	sub emergency_save() {
		2415	my $freeze_guard = cf::freeze_mainloop;
		2416
		2417	warn "enter emergency perl save\n";
		2418
		2419	cf::sync_job {
		2420	# use a peculiar iteration method to avoid tripping on perl
		2421	# refcount bugs in for. also avoids problems with players
		2422	# and maps saved/destroyed asynchronously.
		2423	warn "begin emergency player save\n";
		2424	for my $login (keys %cf::PLAYER) {
		2425	my $pl = $cf::PLAYER{$login} or next;
		2426	$pl->valid or next;
		2427	$pl->save;
		2428	}
		2429	warn "end emergency player save\n";
		2430
		2431	warn "begin emergency map save\n";
		2432	for my $path (keys %cf::MAP) {
		2433	my $map = $cf::MAP{$path} or next;
		2434	$map->valid or next;
		2435	$map->save;
		2436	}
		2437	warn "end emergency map save\n";
		2438
		2439	warn "begin emergency database checkpoint\n";
		2440	BDB::db_env_txn_checkpoint $DB_ENV;
		2441	warn "end emergency database checkpoint\n";
		2442	};
		2443
		2444	warn "leave emergency perl save\n";
		2445	}
		2446
		2447	sub post_cleanup {
		2448	my ($make_core) = @_;
		2449
		2450	warn Carp::longmess "post_cleanup backtrace"
		2451	if $make_core;
		2452	}
		2453
1275	sub _perl_reload() {	2454	sub reload() {
		2455	# can/must only be called in main
		2456	if ($Coro::current != $Coro::main) {
		2457	warn "can only reload from main coroutine";
		2458	return;
		2459	}
		2460
1276	warn "reloading...";	2461	warn "reloading...";
1277		2462
1278	eval {	2463	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2464
		2465	cf::sync_job {
		2466	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2467	cf::emergency_save;
		2468	cf::write_runtime; # external watchdog should not bark
1282		2469
1283	# cancel all watchers	2470	warn "syncing database to disk";
		2471	BDB::db_env_txn_checkpoint $DB_ENV;
		2472
		2473	# if anything goes wrong in here, we should simply crash as we already saved
		2474
		2475	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2476	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2477	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2478	}
1287		2479
		2480	warn "flushing outstanding aio requests";
		2481	for (;;) {
		2482	BDB::flush;
		2483	IO::AIO::flush;
		2484	Coro::cede;
		2485	last unless IO::AIO::nreqs || BDB::nreqs;
		2486	warn "iterate...";
		2487	}
		2488
		2489	++$RELOAD;
		2490
1288	# cancel all extension coros	2491	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2492	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2493	%EXT_CORO = ();
1291		2494
1292	# unload all extensions	2495	warn "removing commands";
1293	for (@exts) {	2496	%COMMAND = ();
		2497
		2498	warn "removing ext commands";
		2499	%EXTCMD = ();
		2500
		2501	warn "unloading/nuking all extensions";
		2502	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2503	warn "... unloading $pkg";
1295	unload_extension $_;	2504
		2505	if (my $cb = $pkg->can ("unload")) {
		2506	eval {
		2507	$cb->($pkg);
		2508	1
		2509	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2510	}
1297		2511
		2512	warn "... nuking $pkg";
		2513	Symbol::delete_package $pkg;
		2514	}
		2515
1298	# unload all modules loaded from $LIBDIR	2516	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2517	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2518	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2519
1302	warn "removing <$k>";	2520	warn "... unloading $k";
1303	delete $INC{$k};	2521	delete $INC{$k};
1304		2522
1305	$k =~ s/\.pm$//;	2523	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2524	$k =~ s/\//::/g;
1307		2525
…		…
1310	}	2528	}
1311		2529
1312	Symbol::delete_package $k;	2530	Symbol::delete_package $k;
1313	}	2531	}
1314		2532
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2533	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2534	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2535	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2536
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2537	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2538	delete $INC{"cf.pm"};
1328		2539
1329	# don't, removes xs symbols, too,	2540	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2541	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2542	#Symbol::delete_package __PACKAGE__;
1332		2543
1333	# reload cf.pm	2544	warn "unload completed, starting to reload now";
		2545
1334	warn "reloading cf.pm";	2546	warn "reloading cf.pm";
1335	require cf;	2547	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2548	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2549
1338	# load config and database again	2550	warn "loading config and database again";
1339	cf::cfg_load;	2551	cf::cfg_load;
1340	cf::db_load;
1341		2552
1342	# load extensions
1343	warn "load extensions";	2553	warn "loading extensions";
1344	cf::load_extensions;	2554	cf::load_extensions;
1345		2555
1346	# reattach attachments to objects	2556	warn "reattaching attachments to objects/players";
1347	warn "reattach";	2557	_global_reattach; # objects, sockets
1348	_global_reattach;	2558	warn "reattaching attachments to maps";
		2559	reattach $_ for values %MAP;
		2560	warn "reattaching attachments to players";
		2561	reattach $_ for values %PLAYER;
		2562
		2563	warn "loading reloadable resources";
		2564	reload_resources;
		2565
		2566	warn "leaving sync_job";
		2567
		2568	1
		2569	} or do {
		2570	warn $@;
		2571	warn "error while reloading, exiting.";
		2572	exit 1;
1349	};	2573	};
1350	warn $@ if $@;
1351		2574
1352	warn "reloaded";	2575	warn "reloaded";
1353	};	2576	};
1354		2577
1355	sub perl_reload() {	2578	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2579
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2580	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2581	my ($who, $arg) = @_;
1363		2582
1364	if ($who->flag (FLAG_WIZ)) {	2583	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2584	$who->message ("reloading server.");
1366	_perl_reload;	2585
		2586	# doing reload synchronously and two reloads happen back-to-back,
		2587	# coro crashes during coro_state_free->destroy here.
		2588
		2589	$RELOAD_WATCHER ||= Event->timer (
		2590	reentrant => 0,
		2591	after => 0,
		2592	data => WF_AUTOCANCEL,
		2593	cb => sub {
		2594	reload;
		2595	undef $RELOAD_WATCHER;
		2596	},
		2597	);
1367	}	2598	}
1368	};	2599	};
1369		2600
1370	unshift @INC, $LIBDIR;	2601	unshift @INC, $LIBDIR;
		2602
		2603	my $bug_warning = 0;
1371		2604
1372	$TICK_WATCHER = Event->timer (	2605	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2606	reentrant => 0,
		2607	parked => 1,
1374	prio => 0,	2608	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2609	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2610	data => WF_AUTOCANCEL,
1377	cb => sub {	2611	cb => sub {
1378	unless ($FREEZE) {	2612	if ($Coro::current != $Coro::main) {
		2613	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2614	unless ++$bug_warning > 10;
		2615	return;
		2616	}
		2617
		2618	$NOW = Event::time;
		2619
1379	cf::server_tick; # one server iteration	2620	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2621	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2622	$NEXT_TICK += $TICK;
		2623
		2624	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2625	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2626	Coro::async_pool {
		2627	write_runtime
		2628	or warn "ERROR: unable to write runtime file: $!";
		2629	};
		2630	}
		2631
		2632	$WAIT_FOR_TICK->broadcast;
		2633	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2634
		2635	# my $AFTER = Event::time;
		2636	# warn $AFTER - $NOW;#d#
1384		2637
1385	# if we are delayed by four ticks or more, skip them all	2638	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2639	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2640
1388	$TICK_WATCHER->at ($NEXT_TICK);	2641	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2642	$TICK_WATCHER->start;
1390	},	2643	},
1391	);	2644	);
1392		2645
		2646	{
		2647	BDB::max_poll_time $TICK * 0.1;
		2648	$BDB_POLL_WATCHER = Event->io (
		2649	reentrant => 0,
		2650	fd => BDB::poll_fileno,
		2651	poll => 'r',
		2652	prio => 0,
		2653	data => WF_AUTOCANCEL,
		2654	cb => \&BDB::poll_cb,
		2655	);
		2656	BDB::min_parallel 8;
		2657
		2658	BDB::set_sync_prepare {
		2659	my $status;
		2660	my $current = $Coro::current;
		2661	(
		2662	sub {
		2663	$status = $!;
		2664	$current->ready; undef $current;
		2665	},
		2666	sub {
		2667	Coro::schedule while defined $current;
		2668	$! = $status;
		2669	},
		2670	)
		2671	};
		2672
		2673	unless ($DB_ENV) {
		2674	$DB_ENV = BDB::db_env_create;
		2675
		2676	cf::sync_job {
		2677	eval {
		2678	BDB::db_env_open
		2679	$DB_ENV,
		2680	$BDB_ENV_DIR,
		2681	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2682	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2683	0666;
		2684
		2685	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2686
		2687	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2688	$DB_ENV->set_lk_detect;
		2689	};
		2690
		2691	cf::cleanup "db_env_open(db): $@" if $@;
		2692	};
		2693	}
		2694	}
		2695
		2696	{
		2697	IO::AIO::min_parallel 8;
		2698
		2699	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2700	IO::AIO::max_poll_time $TICK * 0.1;
1394		2701	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2702	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2703	data => WF_AUTOCANCEL,
		2704	fd => IO::AIO::poll_fileno,
		2705	poll => 'r',
		2706	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2707	cb => \&IO::AIO::poll_cb,
		2708	);
		2709	}
1400		2710
1401	# we must not ever block the main coroutine	2711	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		2712
1410	1	2713	1
1411		2714

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