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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 1.229 by root, Sun Apr 1 00:36:34 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
232	}	376	}
233		377
234	=back	378	=back
235		379
236	=cut	380	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	511	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	512	our @CB_MAP = ();
369		513
370	my %attachment;	514	my %attachment;
371		515
		516	sub cf::attachable::thawer_merge {
		517	# simply override everything except _meta
		518	local $_[0]{_meta};
		519	%{$_[0]} = %{$_[1]};
		520	}
		521
372	sub _attach_cb($$$$) {	522	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	523	my ($registry, $event, $prio, $cb) = @_;
374		524
375	use sort 'stable';	525	use sort 'stable';
376		526
…		…
547	# object support	697	# object support
548		698
549	sub reattach {	699	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	700	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	701	my ($obj) = @_;
		702
		703	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		704
553	my $registry = $obj->registry;	705	my $registry = $obj->registry;
554		706
555	@$registry = ();	707	@$registry = ();
556		708
…		…
603	$filename, length $$rdata, scalar @$objs;	755	$filename, length $$rdata, scalar @$objs;
604		756
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	757	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	758	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	759	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	760	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	761	close $fh;
610		762
611	if (@$objs) {	763	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	764	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	765	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	766	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	767	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	769	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	770	aio_rename "$filename.pst~", "$filename.pst";
619	}	771	}
620	} else {	772	} else {
621	aio_unlink "$filename.pst";	773	aio_unlink "$filename.pst";
…		…
649	or return;	801	or return;
650		802
651	unless (aio_stat "$filename.pst") {	803	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	804	(aio_load "$filename.pst", $av) >= 0
653	or return;	805	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	806	$av = eval { (Storable::thaw $av)->{objs} };
655	}	807	}
656		808
		809	warn sprintf "loading %s (%d)\n",
		810	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	811	return ($data, $av);
658	}	812	}
659		813
660	#############################################################################	814	#############################################################################
661	# command handling &c	815	# command handling &c
…		…
686	=cut	840	=cut
687		841
688	sub register_extcmd {	842	sub register_extcmd {
689	my ($name, $cb) = @_;	843	my ($name, $cb) = @_;
690		844
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	845	$EXTCMD{$name} = $cb;
695	}	846	}
696		847
697	cf::player->attach (	848	cf::player->attach (
698	on_command => sub {	849	on_command => sub {
699	my ($pl, $name, $params) = @_;	850	my ($pl, $name, $params) = @_;
…		…
712		863
713	my $msg = eval { from_json $buf };	864	my $msg = eval { from_json $buf };
714		865
715	if (ref $msg) {	866	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	867	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	868	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	869	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	870	}
720	}	871	}
721	} else {	872	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	873	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		875
725	cf::override;	876	cf::override;
726	},	877	},
727	);	878	);
728		879
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	880	sub load_extension {
736	my ($path) = @_;	881	my ($path) = @_;
737		882
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	883	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	884	my $base = $1;
740	my $pkg = $1;	885	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	886	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	887	$pkg = "ext::$pkg";
743		888
744	warn "loading '$path' into '$pkg'\n";	889	warn "... loading '$path' into '$pkg'\n";
745		890
746	open my $fh, "<:utf8", $path	891	open my $fh, "<:utf8", $path
747	or die "$path: $!";	892	or die "$path: $!";
748		893
749	my $source =	894	my $source =
750	"package $pkg; use strict; use utf8;\n"	895	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	896	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	897	. (do { local $/; <$fh> })
753	. "\n};\n1";	898	. "\n};\n1";
754		899
755	eval $source	900	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	901	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	902	: "extension disabled.\n";
758		903	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	904	warn $@;
760	$ext_pkg{$base} = $pkg;	905	warn "mandatory extension failed to load, exiting.\n";
761		906	exit 1;
762	# no strict 'refs';	907	}
763	# @{"$pkg\::ISA"} = ext::;	908	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	# }	909	}
778		910
779	# remove commands	911	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	}	912	}
804		913
805	sub load_extensions {	914	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	915	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	916	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	920	} or warn "$ext not loaded: $@";
812	}	921	}
813	}	922	}
814		923
815	#############################################################################	924	#############################################################################
816	# load/save/clean perl data associated with a map
817		925
818	*cf::mapsupport::on_clean = sub {	926	=head2 CORE EXTENSIONS
		927
		928	Functions and methods that extend core crossfire objects.
		929
		930	=cut
		931
		932	package cf::player;
		933
		934	use Coro::AIO;
		935
		936	=head3 cf::player
		937
		938	=over 4
		939
		940	=item cf::player::find $login
		941
		942	Returns the given player object, loading it if necessary (might block).
		943
		944	=cut
		945
		946	sub playerdir($) {
		947	cf::localdir
		948	. "/"
		949	. cf::playerdir
		950	. "/"
		951	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		952	}
		953
		954	sub path($) {
		955	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		956
		957	(playerdir $login) . "/$login.pl"
		958	}
		959
		960	sub find_active($) {
		961	$cf::PLAYER{$_[0]}
		962	and $cf::PLAYER{$_[0]}->active
		963	and $cf::PLAYER{$_[0]}
		964	}
		965
		966	sub exists($) {
		967	my ($login) = @_;
		968
		969	$cf::PLAYER{$login}
		970	or cf::sync_job { !aio_stat path $login }
		971	}
		972
		973	sub find($) {
		974	return $cf::PLAYER{$_[0]} || do {
		975	my $login = $_[0];
		976
		977	my $guard = cf::lock_acquire "user_find:$login";
		978
		979	$cf::PLAYER{$_[0]} || do {
		980	my $pl = load_pl path $login
		981	or return;
		982	$cf::PLAYER{$login} = $pl
		983	}
		984	}
		985	}
		986
		987	sub save($) {
		988	my ($pl) = @_;
		989
		990	return if $pl->{deny_save};
		991
		992	my $path = path $pl;
		993	my $guard = cf::lock_acquire "user_save:$path";
		994
		995	return if $pl->{deny_save};
		996
		997	aio_mkdir playerdir $pl, 0770;
		998	$pl->{last_save} = $cf::RUNTIME;
		999
		1000	$pl->save_pl ($path);
		1001	Coro::cede;
		1002	}
		1003
		1004	sub new($) {
		1005	my ($login) = @_;
		1006
		1007	my $self = create;
		1008
		1009	$self->ob->name ($login);
		1010	$self->{deny_save} = 1;
		1011
		1012	$cf::PLAYER{$login} = $self;
		1013
		1014	$self
		1015	}
		1016
		1017	=item $pl->quit_character
		1018
		1019	Nukes the player without looking back. If logged in, the connection will
		1020	be destroyed. May block for a long time.
		1021
		1022	=cut
		1023
		1024	sub quit_character {
		1025	my ($pl) = @_;
		1026
		1027	my $name = $pl->ob->name;
		1028
		1029	$pl->{deny_save} = 1;
		1030	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1031
		1032	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1033	$pl->deactivate;
		1034	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1035	$pl->ns->destroy if $pl->ns;
		1036
		1037	my $path = playerdir $pl;
		1038	my $temp = "$path~$cf::RUNTIME~deleting~";
		1039	aio_rename $path, $temp;
		1040	delete $cf::PLAYER{$pl->ob->name};
		1041	$pl->destroy;
		1042
		1043	my $prefix = qr<^~\Q$name\E/>;
		1044
		1045	# nuke player maps
		1046	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1047
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item $pl->kick
		1052
		1053	Kicks a player out of the game. This destroys the connection.
		1054
		1055	=cut
		1056
		1057	sub kick {
		1058	my ($pl, $kicker) = @_;
		1059
		1060	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1061	$pl->killer ("kicked");
		1062	$pl->ns->destroy;
		1063	}
		1064
		1065	=item cf::player::list_logins
		1066
		1067	Returns am arrayref of all valid playernames in the system, can take a
		1068	while and may block, so not sync_job-capable, ever.
		1069
		1070	=cut
		1071
		1072	sub list_logins {
		1073	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1074	or return [];
		1075
		1076	my @logins;
		1077
		1078	for my $login (@$dirs) {
		1079	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1080	aio_read $fh, 0, 512, my $buf, 0 or next;
		1081	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1082
		1083	utf8::decode $login;
		1084	push @logins, $login;
		1085	}
		1086
		1087	\@logins
		1088	}
		1089
		1090	=item $player->maps
		1091
		1092	Returns an arrayref of map paths that are private for this
		1093	player. May block.
		1094
		1095	=cut
		1096
		1097	sub maps($) {
		1098	my ($pl) = @_;
		1099
		1100	$pl = ref $pl ? $pl->ob->name : $pl;
		1101
		1102	my $files = aio_readdir playerdir $pl
		1103	or return;
		1104
		1105	my @paths;
		1106
		1107	for (@$files) {
		1108	utf8::decode $_;
		1109	next if /\.(?:pl|pst)$/;
		1110	next unless /^$PATH_SEP/o;
		1111
		1112	push @paths, cf::map::normalise "~$pl/$_";
		1113	}
		1114
		1115	\@paths
		1116	}
		1117
		1118	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1119
		1120	Sends an ext reply to the player.
		1121
		1122	=cut
		1123
		1124	sub ext_reply($$$%) {
		1125	my ($self, $id, %msg) = @_;
		1126
		1127	$msg{msgid} = $id;
		1128
		1129	$self->send ("ext " . cf::to_json \%msg);
		1130	}
		1131
		1132	package cf;
		1133
		1134	=back
		1135
		1136
		1137	=head3 cf::map
		1138
		1139	=over 4
		1140
		1141	=cut
		1142
		1143	package cf::map;
		1144
		1145	use Fcntl;
		1146	use Coro::AIO;
		1147
		1148	use overload
		1149	'""' => \&as_string,
		1150	fallback => 1;
		1151
		1152	our $MAX_RESET = 3600;
		1153	our $DEFAULT_RESET = 3000;
		1154
		1155	sub generate_random_map {
		1156	my ($self, $rmp) = @_;
		1157	# mit "rum" bekleckern, nicht
		1158	$self->_create_random_map (
		1159	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1160	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1161	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1162	$rmp->{exit_on_final_map},
		1163	$rmp->{xsize}, $rmp->{ysize},
		1164	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1165	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1166	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1167	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1168	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1169	(cf::region::find $rmp->{region}), $rmp->{custom}
		1170	)
		1171	}
		1172
		1173	=item cf::map->register ($regex, $prio)
		1174
		1175	Register a handler for the map path matching the given regex at the
		1176	givne priority (higher is better, built-in handlers have priority 0, the
		1177	default).
		1178
		1179	=cut
		1180
		1181	sub register {
		1182	my (undef, $regex, $prio) = @_;
		1183	my $pkg = caller;
		1184
		1185	no strict;
		1186	push @{"$pkg\::ISA"}, __PACKAGE__;
		1187
		1188	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1189	}
		1190
		1191	# also paths starting with '/'
		1192	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1193
		1194	sub thawer_merge {
		1195	my ($self, $merge) = @_;
		1196
		1197	# we have to keep some variables in memory intact
		1198	local $self->{path};
		1199	local $self->{load_path};
		1200	local $self->{deny_save};
		1201	local $self->{deny_reset};
		1202
		1203	$self->SUPER::thawer_merge ($merge);
		1204	}
		1205
		1206	sub normalise {
		1207	my ($path, $base) = @_;
		1208
		1209	$path = "$path"; # make sure its a string
		1210
		1211	$path =~ s/\.map$//;
		1212
		1213	# map plan:
		1214	#
		1215	# /! non-realised random map exit (special hack!)
		1216	# {... are special paths that are not being touched
		1217	# ?xxx/... are special absolute paths
		1218	# ?random/... random maps
		1219	# /... normal maps
		1220	# ~user/... per-player map of a specific user
		1221
		1222	$path =~ s/$PATH_SEP/\//go;
		1223
		1224	# treat it as relative path if it starts with
		1225	# something that looks reasonable
		1226	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1227	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1228
		1229	$base =~ s{[^/]+/?$}{};
		1230	$path = "$base/$path";
		1231	}
		1232
		1233	for ($path) {
		1234	redo if s{//}{/};
		1235	redo if s{/\.?/}{/};
		1236	redo if s{/[^/]+/\.\./}{/};
		1237	}
		1238
		1239	$path
		1240	}
		1241
		1242	sub new_from_path {
		1243	my (undef, $path, $base) = @_;
		1244
		1245	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1246
		1247	$path = normalise $path, $base;
		1248
		1249	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1250	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1251	my $self = bless cf::map::new, $pkg;
		1252	$self->{path} = $path; $self->path ($path);
		1253	$self->init; # pass $1 etc.
		1254	return $self;
		1255	}
		1256	}
		1257
		1258	Carp::carp "unable to resolve path '$path' (base '$base').";
		1259	()
		1260	}
		1261
		1262	sub init {
		1263	my ($self) = @_;
		1264
		1265	$self
		1266	}
		1267
		1268	sub as_string {
		1269	my ($self) = @_;
		1270
		1271	"$self->{path}"
		1272	}
		1273
		1274	# the displayed name, this is a one way mapping
		1275	sub visible_name {
		1276	&as_string
		1277	}
		1278
		1279	# the original (read-only) location
		1280	sub load_path {
		1281	my ($self) = @_;
		1282
		1283	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1284	}
		1285
		1286	# the temporary/swap location
		1287	sub save_path {
		1288	my ($self) = @_;
		1289
		1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1291	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1292	}
		1293
		1294	# the unique path, undef == no special unique path
		1295	sub uniq_path {
		1296	my ($self) = @_;
		1297
		1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1299	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1300	}
		1301
		1302	# and all this just because we cannot iterate over
		1303	# all maps in C++...
		1304	sub change_all_map_light {
		1305	my ($change) = @_;
		1306
		1307	$_->change_map_light ($change)
		1308	for grep $_->outdoor, values %cf::MAP;
		1309	}
		1310
		1311	sub unlink_save {
		1312	my ($self) = @_;
		1313
		1314	utf8::encode (my $save = $self->save_path);
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
819	my ($map) = @_;	1475	my ($map) = @_;
820		1476
821	my $path = $map->tmpname;	1477	my @diag; # diagonal neighbours
822	defined $path or return;
823		1478
824	unlink "$path.pst";	1479	for (0 .. 3) {
825	};	1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
826		1485
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
828		1489
829	#############################################################################	1490	for (@diag) {
830	# load/save perl data associated with player->ob objects	1491	my $neigh = find @$_
831		1492	or next;
832	sub all_objects(@) {	1493	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1494	}
834	}	1495	}
835		1496
836	# TODO: compatibility cruft, remove when no longer needed	1497	sub find_sync {
837	cf::player->attach (	1498	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1499
841	for my $o (all_objects $pl->ob) {	1500	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1501	}
843	$o->set_ob_key_value ("_perl_data");
844		1502
845	%$o = %{ Storable::thaw pack "H*", $value };	1503	sub do_load_sync {
		1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
846	}	1530	}
847	}	1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
		1539	sub save {
		1540	my ($self) = @_;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
		1561	if ($uniq) {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1564	} else {
		1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1566	}
849	);	1567	}
850		1568
851	#############################################################################	1569	sub swap_out {
		1570	my ($self) = @_;
852		1571
853	=head2 CORE EXTENSIONS	1572	# save first because save cedes
		1573	$self->save;
854		1574
855	Functions and methods that extend core crossfire objects.	1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1576
857	=head3 cf::player	1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	$self->in_memory (cf::MAP_SWAPPED);
		1615
		1616	# need to save uniques path
		1617	unless ($self->{deny_save}) {
		1618	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1619
		1620	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1621	if $uniq;
		1622	}
		1623
		1624	delete $cf::MAP{$self->path};
		1625
		1626	$self->clear;
		1627
		1628	$_->clear_links_to ($self) for values %cf::MAP;
		1629
		1630	$self->unlink_save;
		1631	$self->destroy;
		1632	}
		1633
		1634	my $nuke_counter = "aaaa";
		1635
		1636	sub nuke {
		1637	my ($self) = @_;
		1638
		1639	delete $cf::MAP{$self->path};
		1640
		1641	$self->unlink_save;
		1642
		1643	bless $self, "cf::map";
		1644	delete $self->{deny_reset};
		1645	$self->{deny_save} = 1;
		1646	$self->reset_timeout (1);
		1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1648
		1649	$cf::MAP{$self->path} = $self;
		1650
		1651	$self->reset; # polite request, might not happen
		1652	}
		1653
		1654	=item cf::map::unique_maps
		1655
		1656	Returns an arrayref of paths of all shared maps that have
		1657	instantiated unique items. May block.
		1658
		1659	=cut
		1660
		1661	sub unique_maps() {
		1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1663	or return;
		1664
		1665	my @paths;
		1666
		1667	for (@$files) {
		1668	utf8::decode $_;
		1669	next if /\.pst$/;
		1670	next unless /^$PATH_SEP/o;
		1671
		1672	push @paths, cf::map::normalise $_;
		1673	}
		1674
		1675	\@paths
		1676	}
		1677
		1678	package cf;
		1679
		1680	=back
		1681
		1682	=head3 cf::object
		1683
		1684	=cut
		1685
		1686	package cf::object;
858		1687
859	=over 4	1688	=over 4
860		1689
861	=item cf::player::exists $login	1690	=item $ob->inv_recursive
862		1691
863	Returns true when the given account exists.	1692	Returns the inventory of the object _and_ their inventories, recursively.
864		1693
865	=cut	1694	=cut
866		1695
867	sub cf::player::exists($) {	1696	sub inv_recursive_;
868	cf::player::find $_[0]	1697	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1698	map { $_, inv_recursive_ $_->inv } @_
870	}	1699	}
871		1700
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1701	sub inv_recursive {
873		1702	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	1703	}
		1704
		1705	package cf;
885		1706
886	=back	1707	=back
887		1708
888	=head3 cf::object::player	1709	=head3 cf::object::player
889		1710
…		…
927	(ref $cf::CFG{"may_$access"}	1748	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1749	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1750	: $cf::CFG{"may_$access"})
930	}	1751	}
931		1752
		1753	=item $player_object->enter_link
		1754
		1755	Freezes the player and moves him/her to a special map (C<{link}>).
		1756
		1757	The player should be reasonably safe there for short amounts of time. You
		1758	I<MUST> call C<leave_link> as soon as possible, though.
		1759
		1760	Will never block.
		1761
		1762	=item $player_object->leave_link ($map, $x, $y)
		1763
		1764	Moves the player out of the special C<{link}> map onto the specified
		1765	map. If the map is not valid (or omitted), the player will be moved back
		1766	to the location he/she was before the call to C<enter_link>, or, if that
		1767	fails, to the emergency map position.
		1768
		1769	Might block.
		1770
		1771	=cut
		1772
		1773	sub link_map {
		1774	unless ($LINK_MAP) {
		1775	$LINK_MAP = cf::map::find "{link}"
		1776	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1777	$LINK_MAP->load;
		1778	}
		1779
		1780	$LINK_MAP
		1781	}
		1782
		1783	sub cf::object::player::enter_link {
		1784	my ($self) = @_;
		1785
		1786	$self->deactivate_recursive;
		1787
		1788	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1789
		1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1791	if $self->map;
		1792
		1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1794	}
		1795
		1796	sub cf::object::player::leave_link {
		1797	my ($self, $map, $x, $y) = @_;
		1798
		1799	my $link_pos = delete $self->{_link_pos};
		1800
		1801	unless ($map) {
		1802	# restore original map position
		1803	($map, $x, $y) = @{ $link_pos || [] };
		1804	$map = cf::map::find $map;
		1805
		1806	unless ($map) {
		1807	($map, $x, $y) = @$EMERGENCY_POSITION;
		1808	$map = cf::map::find $map
		1809	or die "FATAL: cannot load emergency map\n";
		1810	}
		1811	}
		1812
		1813	($x, $y) = (-1, -1)
		1814	unless (defined $x) && (defined $y);
		1815
		1816	# use -1 or undef as default coordinates, not 0, 0
		1817	($x, $y) = ($map->enter_x, $map->enter_y)
		1818	if $x <=0 && $y <= 0;
		1819
		1820	$map->load;
		1821	$map->load_diag;
		1822
		1823	return unless $self->contr->active;
		1824	$self->activate_recursive;
		1825
		1826	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1827	$self->enter_map ($map, $x, $y);
		1828	}
		1829
		1830	cf::player->attach (
		1831	on_logout => sub {
		1832	my ($pl) = @_;
		1833
		1834	# abort map switching before logout
		1835	if ($pl->ob->{_link_pos}) {
		1836	cf::sync_job {
		1837	$pl->ob->leave_link
		1838	};
		1839	}
		1840	},
		1841	on_login => sub {
		1842	my ($pl) = @_;
		1843
		1844	# try to abort aborted map switching on player login :)
		1845	# should happen only on crashes
		1846	if ($pl->ob->{_link_pos}) {
		1847	$pl->ob->enter_link;
		1848	(async {
		1849	$pl->ob->reply (undef,
		1850	"There was an internal problem at your last logout, "
		1851	. "the server will try to bring you to your intended destination in a second.",
		1852	cf::NDI_RED);
		1853	# we need this sleep as the login has a concurrent enter_exit running
		1854	# and this sleep increases chances of the player not ending up in scorn
		1855	Coro::Timer::sleep 1;
		1856	$pl->ob->leave_link;
		1857	})->prio (2);
		1858	}
		1859	},
		1860	);
		1861
		1862	=item $player_object->goto ($path, $x, $y)
		1863
		1864	=cut
		1865
		1866	sub cf::object::player::goto {
		1867	my ($self, $path, $x, $y) = @_;
		1868
		1869	$self->enter_link;
		1870
		1871	(async {
		1872	my $map = eval {
		1873	my $map = cf::map::find $path;
		1874	$map = $map->customise_for ($self) if $map;
		1875	$map
		1876	} or
		1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1878
		1879	$self->leave_link ($map, $x, $y);
		1880	})->prio (1);
		1881	}
		1882
		1883	=item $player_object->enter_exit ($exit_object)
		1884
		1885	=cut
		1886
		1887	sub parse_random_map_params {
		1888	my ($spec) = @_;
		1889
		1890	my $rmp = { # defaults
		1891	xsize => (cf::rndm 15, 40),
		1892	ysize => (cf::rndm 15, 40),
		1893	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1894	#layout => string,
		1895	};
		1896
		1897	for (split /\n/, $spec) {
		1898	my ($k, $v) = split /\s+/, $_, 2;
		1899
		1900	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1901	}
		1902
		1903	$rmp
		1904	}
		1905
		1906	sub prepare_random_map {
		1907	my ($exit) = @_;
		1908
		1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1910
		1911	# all this does is basically replace the /! path by
		1912	# a new random map path (?random/...) with a seed
		1913	# that depends on the exit object
		1914
		1915	my $rmp = parse_random_map_params $exit->msg;
		1916
		1917	if ($exit->map) {
		1918	$rmp->{region} = $exit->region->name;
		1919	$rmp->{origin_map} = $exit->map->path;
		1920	$rmp->{origin_x} = $exit->x;
		1921	$rmp->{origin_y} = $exit->y;
		1922	}
		1923
		1924	$rmp->{random_seed} ||= $exit->random_seed;
		1925
		1926	my $data = cf::to_json $rmp;
		1927	my $md5 = Digest::MD5::md5_hex $data;
		1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1929
		1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1931	aio_write $fh, 0, (length $data), $data, 0;
		1932	undef $fh;
		1933	aio_rename "$meta~", $meta;
		1934
		1935	$exit->slaying ("?random/$md5");
		1936	$exit->msg (undef);
		1937	}
		1938	}
		1939
		1940	sub cf::object::player::enter_exit {
		1941	my ($self, $exit) = @_;
		1942
		1943	return unless $self->type == cf::PLAYER;
		1944
		1945	if ($exit->slaying eq "/!") {
		1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1947	cf::sync_job { prepare_random_map $exit };
		1948	}
		1949
		1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1951	my $hp = $exit->stats->hp;
		1952	my $sp = $exit->stats->sp;
		1953
		1954	$self->enter_link;
		1955
		1956	(async {
		1957	$self->deactivate_recursive; # just to be sure
		1958	unless (eval {
		1959	$self->goto ($slaying, $hp, $sp);
		1960
		1961	1;
		1962	}) {
		1963	$self->message ("Something went wrong deep within the crossfire server. "
		1964	. "I'll try to bring you back to the map you were before. "
		1965	. "Please report this to the dungeon master!",
		1966	cf::NDI_UNIQUE | cf::NDI_RED);
		1967
		1968	warn "ERROR in enter_exit: $@";
		1969	$self->leave_link;
		1970	}
		1971	})->prio (1);
		1972	}
		1973
932	=head3 cf::client	1974	=head3 cf::client
933		1975
934	=over 4	1976	=over 4
935		1977
936	=item $client->send_drawinfo ($text, $flags)	1978	=item $client->send_drawinfo ($text, $flags)
…		…
942		1984
943	sub cf::client::send_drawinfo {	1985	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	1986	my ($self, $text, $flags) = @_;
945		1987
946	utf8::encode $text;	1988	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	1989	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	1990	}
949		1991
950		1992
951	=item $success = $client->query ($flags, "text", \&cb)	1993	=item $success = $client->query ($flags, "text", \&cb)
952		1994
…		…
979	on_reply => sub {	2021	on_reply => sub {
980	my ($ns, $msg) = @_;	2022	my ($ns, $msg) = @_;
981		2023
982	# this weird shuffling is so that direct followup queries	2024	# this weird shuffling is so that direct followup queries
983	# get handled first	2025	# get handled first
984	my $queue = delete $ns->{query_queue};	2026	my $queue = delete $ns->{query_queue}
		2027	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2028
986	(shift @$queue)->[1]->($msg);	2029	(shift @$queue)->[1]->($msg);
		2030	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2031
988	push @{ $ns->{query_queue} }, @$queue;	2032	push @{ $ns->{query_queue} }, @$queue;
989		2033
990	if (@{ $ns->{query_queue} } == @$queue) {	2034	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2035	if (@$queue) {
…		…
995	}	2039	}
996	}	2040	}
997	},	2041	},
998	);	2042	);
999		2043
1000	=item $client->coro (\&cb)	2044	=item $client->async (\&cb)
1001		2045
1002	Create a new coroutine, running the specified callback. The coroutine will	2046	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2047	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2048	or loss of connection).
1005		2049
1006	=cut	2050	=cut
1007		2051
1008	sub cf::client::coro {	2052	sub cf::client::async {
1009	my ($self, $cb) = @_;	2053	my ($self, $cb) = @_;
1010		2054
1011	my $coro; $coro = async {	2055	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2056
1018	$coro->on_destroy (sub {	2057	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2058	delete $self->{_coro}{$coro+0};
1020	});	2059	});
1021		2060
…		…
1054		2093
1055	# here we export the classes and methods available to script code	2094	# here we export the classes and methods available to script code
1056		2095
1057	=pod	2096	=pod
1058		2097
1059	The following fucntions and emthods are available within a safe environment:	2098	The following functions and methods are available within a safe environment:
1060		2099
1061	cf::object contr pay_amount pay_player map	2100	cf::object contr pay_amount pay_player map
1062	cf::object::player player	2101	cf::object::player player
1063	cf::player peaceful	2102	cf::player peaceful
1064	cf::map trigger	2103	cf::map trigger
…		…
1157	The parameter C<$family> should best start with the name of the extension	2196	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2197	using it, it should be unique.
1159		2198
1160	=over 4	2199	=over 4
1161		2200
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	2201	=item $value = cf::db_get $family => $key
1169		2202
1170	Returns a single value from the database	2203	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		2204
1177	=item cf::db_put $family => $key => $value	2205	=item cf::db_put $family => $key => $value
1178		2206
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2207	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		2208
1190	=cut	2209	=cut
1191		2210
1192	our $DB;	2211	our $DB;
1193		2212
1194	{	2213	sub db_init {
		2214	unless ($DB) {
		2215	$DB = BDB::db_create $DB_ENV;
		2216
		2217	cf::sync_job {
		2218	eval {
		2219	$DB->set_flags (BDB::CHKSUM);
		2220
		2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2223	cf::cleanup "db_open(db): $!" if $!;
		2224	};
		2225	cf::cleanup "db_open(db): $@" if $@;
		2226	};
		2227
1195	my $path = cf::localdir . "/database.pst";	2228	my $path = cf::localdir . "/database.pst";
		2229	if (stat $path) {
		2230	cf::sync_job {
		2231	my $pst = Storable::retrieve $path;
1196		2232
1197	sub db_load() {	2233	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2234	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2235	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2236	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2237
1202	my $pid;	2238	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	}	2239	};
1213	}	2240	}
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	});	2241	}
		2242	}
1225		2243
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {	2244	sub db_get($$) {
1232	@_ >= 2	2245	my $key = "$_[0]/$_[1]";
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236		2246
		2247	cf::sync_job {
		2248	BDB::db_get $DB, undef, $key, my $data;
		2249
		2250	$! ? ()
		2251	: Compress::LZF::sthaw $data
		2252	}
		2253	}
		2254
1237	sub db_put($$;$) {	2255	sub db_put($$$) {
1238	if (@_ >= 3) {	2256	BDB::dbreq_pri 4;
1239	$DB->{$_[0]}{$_[1]} = $_[2];	2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2258	}
		2259
		2260	#############################################################################
		2261	# the server's init and main functions
		2262
		2263	sub load_facedata {
		2264	my $path = sprintf "%s/facedata", cf::datadir;
		2265
		2266	warn "loading facedata from $path\n";
		2267
		2268	my $faces;
		2269	0 < aio_load $path, $faces
		2270	or die "$path: $!";
		2271
		2272	Coro::cede;
		2273	$faces = Storable::thaw $faces;
		2274	Coro::cede;
		2275
		2276	my $meta = delete $faces->{""};
		2277	$meta->{version} == 1
		2278	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2279
		2280	while (my ($face, $info) = each %$faces) {
		2281	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2282	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2283	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2284	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2285	Coro::cede;
		2286	}
		2287
		2288	while (my ($face, $info) = each %$faces) {
		2289	next unless $info->{smooth};
		2290	my $idx = cf::face::find $face
		2291	or next;
		2292	if (my $smooth = cf::face::find $info->{smooth}) {
		2293	cf::face::set_smooth $idx, $smooth;
1240	} else {	2294	} else {
1241	$DB->{$_[0]} = $_[1];	2295	warn "smooth face '$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	},	2296	}
1251	);	2297	Coro::cede;
1252	}	2298	}
1253		2299
1254	#############################################################################	2300	1
1255	# the server's main()	2301	}
		2302
		2303	sub reload_resources {
		2304	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2305	or die "unable to load regions file\n";#d#
		2306	load_facedata
		2307	or die "unable to load facedata\n";#d#
		2308	}
		2309
		2310	sub init {
		2311	reload_resources;
		2312	}
1256		2313
1257	sub cfg_load {	2314	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2315	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2316	or return;
1260		2317
1261	local $/;	2318	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2319	*CFG = YAML::Syck::Load <$fh>;
		2320
		2321	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2322
		2323	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2324	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2325
		2326	if (exists $CFG{mlockall}) {
		2327	eval {
		2328	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2329	and die "WARNING: m(un)lockall failed: $!\n";
		2330	};
		2331	warn $@ if $@;
		2332	}
1263	}	2333	}
1264		2334
1265	sub main {	2335	sub main {
		2336	# we must not ever block the main coroutine
		2337	local $Coro::idle = sub {
		2338	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2339	(async {
		2340	Event::one_event;
		2341	})->prio (Coro::PRIO_MAX);
		2342	};
		2343
1266	cfg_load;	2344	cfg_load;
1267	db_load;	2345	db_init;
1268	load_extensions;	2346	load_extensions;
		2347
		2348	$TICK_WATCHER->start;
1269	Event::loop;	2349	Event::loop;
1270	}	2350	}
1271		2351
1272	#############################################################################	2352	#############################################################################
1273	# initialisation	2353	# initialisation and cleanup
1274		2354
		2355	# install some emergency cleanup handlers
		2356	BEGIN {
		2357	for my $signal (qw(INT HUP TERM)) {
		2358	Event->signal (
		2359	reentrant => 0,
		2360	data => WF_AUTOCANCEL,
		2361	signal => $signal,
		2362	prio => 0,
		2363	cb => sub {
		2364	cf::cleanup "SIG$signal";
		2365	},
		2366	);
		2367	}
		2368	}
		2369
		2370	sub emergency_save() {
		2371	my $freeze_guard = cf::freeze_mainloop;
		2372
		2373	warn "enter emergency perl save\n";
		2374
		2375	cf::sync_job {
		2376	# use a peculiar iteration method to avoid tripping on perl
		2377	# refcount bugs in for. also avoids problems with players
		2378	# and maps saved/destroyed asynchronously.
		2379	warn "begin emergency player save\n";
		2380	for my $login (keys %cf::PLAYER) {
		2381	my $pl = $cf::PLAYER{$login} or next;
		2382	$pl->valid or next;
		2383	$pl->save;
		2384	}
		2385	warn "end emergency player save\n";
		2386
		2387	warn "begin emergency map save\n";
		2388	for my $path (keys %cf::MAP) {
		2389	my $map = $cf::MAP{$path} or next;
		2390	$map->valid or next;
		2391	$map->save;
		2392	}
		2393	warn "end emergency map save\n";
		2394
		2395	warn "begin emergency database checkpoint\n";
		2396	BDB::db_env_txn_checkpoint $DB_ENV;
		2397	warn "end emergency database checkpoint\n";
		2398	};
		2399
		2400	warn "leave emergency perl save\n";
		2401	}
		2402
		2403	sub post_cleanup {
		2404	my ($make_core) = @_;
		2405
		2406	warn Carp::longmess "post_cleanup backtrace"
		2407	if $make_core;
		2408	}
		2409
1275	sub _perl_reload() {	2410	sub reload() {
		2411	# can/must only be called in main
		2412	if ($Coro::current != $Coro::main) {
		2413	warn "can only reload from main coroutine";
		2414	return;
		2415	}
		2416
1276	warn "reloading...";	2417	warn "reloading...";
1277		2418
1278	eval {	2419	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2420
		2421	cf::sync_job {
		2422	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2423	cf::emergency_save;
		2424	cf::write_runtime; # external watchdog should not bark
1282		2425
1283	# cancel all watchers	2426	warn "syncing database to disk";
		2427	BDB::db_env_txn_checkpoint $DB_ENV;
		2428
		2429	# if anything goes wrong in here, we should simply crash as we already saved
		2430
		2431	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2432	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2433	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2434	}
1287		2435
		2436	warn "flushing outstanding aio requests";
		2437	for (;;) {
		2438	BDB::flush;
		2439	IO::AIO::flush;
		2440	Coro::cede;
		2441	last unless IO::AIO::nreqs || BDB::nreqs;
		2442	warn "iterate...";
		2443	}
		2444
		2445	++$RELOAD;
		2446
1288	# cancel all extension coros	2447	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2448	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2449	%EXT_CORO = ();
1291		2450
1292	# unload all extensions	2451	warn "removing commands";
1293	for (@exts) {	2452	%COMMAND = ();
		2453
		2454	warn "removing ext commands";
		2455	%EXTCMD = ();
		2456
		2457	warn "unloading/nuking all extensions";
		2458	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2459	warn "... unloading $pkg";
1295	unload_extension $_;	2460
		2461	if (my $cb = $pkg->can ("unload")) {
		2462	eval {
		2463	$cb->($pkg);
		2464	1
		2465	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2466	}
1297		2467
		2468	warn "... nuking $pkg";
		2469	Symbol::delete_package $pkg;
		2470	}
		2471
1298	# unload all modules loaded from $LIBDIR	2472	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2473	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2474	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2475
1302	warn "removing <$k>";	2476	warn "... unloading $k";
1303	delete $INC{$k};	2477	delete $INC{$k};
1304		2478
1305	$k =~ s/\.pm$//;	2479	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2480	$k =~ s/\//::/g;
1307		2481
…		…
1310	}	2484	}
1311		2485
1312	Symbol::delete_package $k;	2486	Symbol::delete_package $k;
1313	}	2487	}
1314		2488
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2489	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2490	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2491	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2492
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2493	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2494	delete $INC{"cf.pm"};
1328		2495
1329	# don't, removes xs symbols, too,	2496	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2497	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2498	#Symbol::delete_package __PACKAGE__;
1332		2499
1333	# reload cf.pm	2500	warn "unload completed, starting to reload now";
		2501
1334	warn "reloading cf.pm";	2502	warn "reloading cf.pm";
1335	require cf;	2503	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2504	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2505
1338	# load config and database again	2506	warn "loading config and database again";
1339	cf::cfg_load;	2507	cf::cfg_load;
1340	cf::db_load;
1341		2508
1342	# load extensions
1343	warn "load extensions";	2509	warn "loading extensions";
1344	cf::load_extensions;	2510	cf::load_extensions;
1345		2511
1346	# reattach attachments to objects	2512	warn "reattaching attachments to objects/players";
1347	warn "reattach";	2513	_global_reattach; # objects, sockets
1348	_global_reattach;	2514	warn "reattaching attachments to maps";
		2515	reattach $_ for values %MAP;
		2516	warn "reattaching attachments to players";
		2517	reattach $_ for values %PLAYER;
		2518
		2519	warn "loading reloadable resources";
		2520	reload_resources;
		2521
		2522	warn "leaving sync_job";
		2523
		2524	1
		2525	} or do {
		2526	warn $@;
		2527	warn "error while reloading, exiting.";
		2528	exit 1;
1349	};	2529	};
1350	warn $@ if $@;
1351		2530
1352	warn "reloaded";	2531	warn "reloaded";
1353	};	2532	};
1354		2533
1355	sub perl_reload() {	2534	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2535
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2536	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2537	my ($who, $arg) = @_;
1363		2538
1364	if ($who->flag (FLAG_WIZ)) {	2539	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2540	$who->message ("reloading server.");
1366	_perl_reload;	2541
		2542	# doing reload synchronously and two reloads happen back-to-back,
		2543	# coro crashes during coro_state_free->destroy here.
		2544
		2545	$RELOAD_WATCHER ||= Event->timer (
		2546	reentrant => 0,
		2547	after => 0,
		2548	data => WF_AUTOCANCEL,
		2549	cb => sub {
		2550	reload;
		2551	undef $RELOAD_WATCHER;
		2552	},
		2553	);
1367	}	2554	}
1368	};	2555	};
1369		2556
1370	unshift @INC, $LIBDIR;	2557	unshift @INC, $LIBDIR;
		2558
		2559	my $bug_warning = 0;
1371		2560
1372	$TICK_WATCHER = Event->timer (	2561	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2562	reentrant => 0,
		2563	parked => 1,
1374	prio => 0,	2564	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2565	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2566	data => WF_AUTOCANCEL,
1377	cb => sub {	2567	cb => sub {
1378	unless ($FREEZE) {	2568	if ($Coro::current != $Coro::main) {
		2569	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2570	unless ++$bug_warning > 10;
		2571	return;
		2572	}
		2573
		2574	$NOW = Event::time;
		2575
1379	cf::server_tick; # one server iteration	2576	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2577	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2578	$NEXT_TICK += $TICK;
		2579
		2580	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2581	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2582	Coro::async_pool {
		2583	write_runtime
		2584	or warn "ERROR: unable to write runtime file: $!";
		2585	};
		2586	}
		2587
		2588	$WAIT_FOR_TICK->broadcast;
		2589	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2590
		2591	# my $AFTER = Event::time;
		2592	# warn $AFTER - $NOW;#d#
1384		2593
1385	# if we are delayed by four ticks or more, skip them all	2594	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2595	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2596
1388	$TICK_WATCHER->at ($NEXT_TICK);	2597	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2598	$TICK_WATCHER->start;
1390	},	2599	},
1391	);	2600	);
1392		2601
		2602	{
		2603	BDB::max_poll_time $TICK * 0.1;
		2604	$BDB_POLL_WATCHER = Event->io (
		2605	reentrant => 0,
		2606	fd => BDB::poll_fileno,
		2607	poll => 'r',
		2608	prio => 0,
		2609	data => WF_AUTOCANCEL,
		2610	cb => \&BDB::poll_cb,
		2611	);
		2612	BDB::min_parallel 8;
		2613
		2614	BDB::set_sync_prepare {
		2615	my $status;
		2616	my $current = $Coro::current;
		2617	(
		2618	sub {
		2619	$status = $!;
		2620	$current->ready; undef $current;
		2621	},
		2622	sub {
		2623	Coro::schedule while defined $current;
		2624	$! = $status;
		2625	},
		2626	)
		2627	};
		2628
		2629	unless ($DB_ENV) {
		2630	$DB_ENV = BDB::db_env_create;
		2631
		2632	cf::sync_job {
		2633	eval {
		2634	BDB::db_env_open
		2635	$DB_ENV,
		2636	$BDB_ENV_DIR,
		2637	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2638	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2639	0666;
		2640
		2641	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2642
		2643	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2644	$DB_ENV->set_lk_detect;
		2645	};
		2646
		2647	cf::cleanup "db_env_open(db): $@" if $@;
		2648	};
		2649	}
		2650	}
		2651
		2652	{
		2653	IO::AIO::min_parallel 8;
		2654
		2655	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2656	IO::AIO::max_poll_time $TICK * 0.1;
1394		2657	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2658	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2659	data => WF_AUTOCANCEL,
		2660	fd => IO::AIO::poll_fileno,
		2661	poll => 'r',
		2662	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2663	cb => \&IO::AIO::poll_cb,
		2664	);
		2665	}
1400		2666
1401	# we must not ever block the main coroutine	2667	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		2668
1410	1	2669	1
1411		2670

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