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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 1.214 by root, Wed Feb 14 00:40:05 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
20	use Fcntl;	23	use Fcntl;
21	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
22	use YAML::Syck ();	25	use YAML::Syck ();
23	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
24		30
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
26		34
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
29		37
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		39
34	our %COMMAND = ();	40	our %COMMAND = ();
35	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
37		47
38	our @EVENT;	48	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
40		50
41	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	55	our $NEXT_TICK;
44	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
45		61
46	our %CFG;	62	our %CFG;
47		63
48	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	65	our $RUNTIME;
50		66
		67	our %PLAYER; # all users
51	our %MAP; # all maps	68	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		78
55	binmode STDOUT;	79	binmode STDOUT;
56	binmode STDERR;	80	binmode STDERR;
57		81
58	# read virtual server time, if available	82	# read virtual server time, if available
…		…
64		88
65	mkdir cf::localdir;	89	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
69		95
70	our %EXT_CORO;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
71		99
72	#############################################################################	100	#############################################################################
73		101
74	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
75		103
…		…
99		127
100	=item %cf::CFG	128	=item %cf::CFG
101		129
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
104		139
105	=back	140	=back
106		141
107	=cut	142	=cut
108		143
…		…
112	utf8::encode $msg;	147	utf8::encode $msg;
113		148
114	$msg .= "\n"	149	$msg .= "\n"
115	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
116		151
117	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
118	};	153	};
119	}	154	}
120		155
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		175
141	$Event::DIED = sub {	176	$Event::DIED = sub {
142	warn "error in event callback: @_";	177	warn "error in event callback: @_";
143	};	178	};
144		179
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
150		181
151	=over 4	182	=over 4
152		183
		184	=item dumpval $ref
		185
153	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
154		206
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		208
157	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
158		210
…		…
174	sub to_json($) {	226	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
177	}	229	}
178		230
179	# main coro must never ever "block" except in Event	231	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	232
181	# and waiting in Event while the server is otherwise frozen	233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
		292
		293	=item cf::sync_job { BLOCK }
		294
		295	The design of crossfire+ requires that the main coro ($Coro::main) is
		296	always able to handle events or runnable, as crossfire+ is only partly
		297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		298
		299	If it must be done, put the blocking parts into C<sync_job>. This will run
		300	the given BLOCK in another coroutine while waiting for the result. The
		301	server will be frozen during this time, so the block should either finish
		302	fast or be very important.
		303
		304	=cut
		305
182	sub sync_job(&) {	306	sub sync_job(&) {
183	my ($job) = @_;	307	my ($job) = @_;
184		308
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
198	while ($busy) {	326	while ($busy) {
199	Coro::cede_notself;	327	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	328	}
		329
		330	wantarray ? @res : $res[0]
202	} else {	331	} else {
203	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
204	}	335	}
205
206	wantarray ? @res : $res[0]
207	}	336	}
208		337
209	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
210		339
211	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
213		342
214	=cut	343	=cut
215		344
216	sub coro(&) {	345	sub async_ext(&) {
217	my $cb = shift;	346	my $cb = shift;
218		347
219	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		349
226	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
228	});	352	});
229	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
230		354
231	$coro	355	$coro
		356	}
		357
		358	sub write_runtime {
		359	my $runtime = cf::localdir . "/runtime";
		360
		361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		362	or return;
		363
		364	my $value = $cf::RUNTIME + 90 + 10;
		365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
		368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		369	and return;
		370
		371	# always fsync - this file is important
		372	aio_fsync $fh
		373	and return;
		374
		375	close $fh
		376	or return;
		377
		378	aio_rename "$runtime~", $runtime
		379	and return;
		380
		381	1
232	}	382	}
233		383
234	=back	384	=back
235		385
236	=cut	386	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	518	our @CB_MAP = ();
369		519
370	my %attachment;	520	my %attachment;
371		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
372	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
374		530
375	use sort 'stable';	531	use sort 'stable';
376		532
…		…
547	# object support	703	# object support
548		704
549	sub reattach {	705	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		710
553	my $registry = $obj->registry;	711	my $registry = $obj->registry;
554		712
555	@$registry = ();	713	@$registry = ();
556		714
…		…
603	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
604		762
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	767	close $fh;
610		768
611	if (@$objs) {	769	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	775	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
619	}	777	}
620	} else {	778	} else {
621	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
627	}	785	}
628	} else {	786	} else {
629	aio_unlink $filename;	787	aio_unlink $filename;
630	aio_unlink "$filename.pst";	788	aio_unlink "$filename.pst";
631	}	789	}
		790
		791	#d##TODO# nuke non .map-files if exist
		792	if ($filename =~ s/\.map$//) {
		793	aio_unlink $filename;
		794	aio_unlink "$filename.pst";
		795	}
632	}	796	}
633	}	797	}
634		798
635	sub object_freezer_as_string {	799	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	800	my ($rdata, $objs) = @_;
…		…
642		806
643	sub object_thawer_load {	807	sub object_thawer_load {
644	my ($filename) = @_;	808	my ($filename) = @_;
645		809
646	my ($data, $av);	810	my ($data, $av);
		811
		812	#d#TODO remove .map if file does not exist
		813	aio_stat $filename and $filename =~ s/\.map$//;
647		814
648	(aio_load $filename, $data) >= 0	815	(aio_load $filename, $data) >= 0
649	or return;	816	or return;
650		817
651	unless (aio_stat "$filename.pst") {	818	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	819	(aio_load "$filename.pst", $av) >= 0
653	or return;	820	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	821	$av = eval { (Storable::thaw $av)->{objs} };
655	}	822	}
656		823
		824	warn sprintf "loading %s (%d)\n",
		825	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	826	return ($data, $av);
658	}	827	}
659		828
660	#############################################################################	829	#############################################################################
661	# command handling &c	830	# command handling &c
…		…
686	=cut	855	=cut
687		856
688	sub register_extcmd {	857	sub register_extcmd {
689	my ($name, $cb) = @_;	858	my ($name, $cb) = @_;
690		859
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	860	$EXTCMD{$name} = $cb;
695	}	861	}
696		862
697	cf::player->attach (	863	cf::player->attach (
698	on_command => sub {	864	on_command => sub {
699	my ($pl, $name, $params) = @_;	865	my ($pl, $name, $params) = @_;
…		…
712		878
713	my $msg = eval { from_json $buf };	879	my $msg = eval { from_json $buf };
714		880
715	if (ref $msg) {	881	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	883	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	884	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	885	}
720	}	886	}
721	} else {	887	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		890
725	cf::override;	891	cf::override;
726	},	892	},
727	);	893	);
728		894
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	895	sub load_extension {
736	my ($path) = @_;	896	my ($path) = @_;
737		897
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	899	my $base = $1;
740	my $pkg = $1;	900	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	901	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	902	$pkg = "ext::$pkg";
743		903
744	warn "loading '$path' into '$pkg'\n";	904	warn "... loading '$path' into '$pkg'\n";
745		905
746	open my $fh, "<:utf8", $path	906	open my $fh, "<:utf8", $path
747	or die "$path: $!";	907	or die "$path: $!";
748		908
749	my $source =	909	my $source =
750	"package $pkg; use strict; use utf8;\n"	910	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	911	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	912	. (do { local $/; <$fh> })
753	. "\n};\n1";	913	. "\n};\n1";
754		914
755	eval $source	915	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	916	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	917	: "extension disabled.\n";
758		918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	919	warn $@;
760	$ext_pkg{$base} = $pkg;	920	warn "mandatory extension failed to load, exiting.\n";
761		921	exit 1;
762	# no strict 'refs';	922	}
763	# @{"$pkg\::ISA"} = ext::;	923	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	# }	924	}
778		925
779	# remove commands	926	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	}	927	}
804		928
805	sub load_extensions {	929	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	930	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	931	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	935	} or warn "$ext not loaded: $@";
812	}	936	}
813	}	937	}
814		938
815	#############################################################################	939	#############################################################################
816	# load/save/clean perl data associated with a map
817		940
818	*cf::mapsupport::on_clean = sub {	941	=head2 CORE EXTENSIONS
		942
		943	Functions and methods that extend core crossfire objects.
		944
		945	=cut
		946
		947	package cf::player;
		948
		949	use Coro::AIO;
		950
		951	=head3 cf::player
		952
		953	=over 4
		954
		955	=item cf::player::find $login
		956
		957	Returns the given player object, loading it if necessary (might block).
		958
		959	=cut
		960
		961	sub playerdir($) {
		962	cf::localdir
		963	. "/"
		964	. cf::playerdir
		965	. "/"
		966	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		967	}
		968
		969	sub path($) {
		970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		971
		972	(playerdir $login) . "/$login.pl"
		973	}
		974
		975	sub find_active($) {
		976	$cf::PLAYER{$_[0]}
		977	and $cf::PLAYER{$_[0]}->active
		978	and $cf::PLAYER{$_[0]}
		979	}
		980
		981	sub exists($) {
		982	my ($login) = @_;
		983
		984	$cf::PLAYER{$login}
		985	or cf::sync_job { !aio_stat path $login }
		986	}
		987
		988	sub find($) {
		989	return $cf::PLAYER{$_[0]} || do {
		990	my $login = $_[0];
		991
		992	my $guard = cf::lock_acquire "user_find:$login";
		993
		994	$cf::PLAYER{$_[0]} || do {
		995	my $pl = load_pl path $login
		996	or return;
		997	$cf::PLAYER{$login} = $pl
		998	}
		999	}
		1000	}
		1001
		1002	sub save($) {
		1003	my ($pl) = @_;
		1004
		1005	return if $pl->{deny_save};
		1006
		1007	my $path = path $pl;
		1008	my $guard = cf::lock_acquire "user_save:$path";
		1009
		1010	return if $pl->{deny_save};
		1011
		1012	aio_mkdir playerdir $pl, 0770;
		1013	$pl->{last_save} = $cf::RUNTIME;
		1014
		1015	$pl->save_pl ($path);
		1016	Coro::cede;
		1017	}
		1018
		1019	sub new($) {
		1020	my ($login) = @_;
		1021
		1022	my $self = create;
		1023
		1024	$self->ob->name ($login);
		1025	$self->{deny_save} = 1;
		1026
		1027	$cf::PLAYER{$login} = $self;
		1028
		1029	$self
		1030	}
		1031
		1032	=item $pl->quit_character
		1033
		1034	Nukes the player without looking back. If logged in, the connection will
		1035	be destroyed. May block for a long time.
		1036
		1037	=cut
		1038
		1039	sub quit_character {
		1040	my ($pl) = @_;
		1041
		1042	$pl->{deny_save} = 1;
		1043	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1044
		1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1046	$pl->deactivate;
		1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1048	$pl->ns->destroy if $pl->ns;
		1049
		1050	my $path = playerdir $pl;
		1051	my $temp = "$path~$cf::RUNTIME~deleting~";
		1052	aio_rename $path, $temp;
		1053	delete $cf::PLAYER{$pl->ob->name};
		1054	$pl->destroy;
		1055	IO::AIO::aio_rmtree $temp;
		1056	}
		1057
		1058	=item cf::player::list_logins
		1059
		1060	Returns am arrayref of all valid playernames in the system, can take a
		1061	while and may block, so not sync_job-capable, ever.
		1062
		1063	=cut
		1064
		1065	sub list_logins {
		1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1067	or return [];
		1068
		1069	my @logins;
		1070
		1071	for my $login (@$dirs) {
		1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1073	aio_read $fh, 0, 512, my $buf, 0 or next;
		1074	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1075
		1076	utf8::decode $login;
		1077	push @logins, $login;
		1078	}
		1079
		1080	\@logins
		1081	}
		1082
		1083	=item $player->maps
		1084
		1085	Returns an arrayref of map paths that are private for this
		1086	player. May block.
		1087
		1088	=cut
		1089
		1090	sub maps($) {
		1091	my ($pl) = @_;
		1092
		1093	$pl = ref $pl ? $pl->ob->name : $pl;
		1094
		1095	my $files = aio_readdir playerdir $pl
		1096	or return;
		1097
		1098	my @paths;
		1099
		1100	for (@$files) {
		1101	utf8::decode $_;
		1102	next if /\.(?:pl|pst)$/;
		1103	next unless /^$PATH_SEP/o;
		1104
		1105	push @paths, cf::map::normalise "~$pl/$_";
		1106	}
		1107
		1108	\@paths
		1109	}
		1110
		1111	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1112
		1113	Sends an ext reply to the player.
		1114
		1115	=cut
		1116
		1117	sub ext_reply($$$%) {
		1118	my ($self, $id, %msg) = @_;
		1119
		1120	$msg{msgid} = $id;
		1121
		1122	$self->send ("ext " . cf::to_json \%msg);
		1123	}
		1124
		1125	package cf;
		1126
		1127	=back
		1128
		1129
		1130	=head3 cf::map
		1131
		1132	=over 4
		1133
		1134	=cut
		1135
		1136	package cf::map;
		1137
		1138	use Fcntl;
		1139	use Coro::AIO;
		1140
		1141	use overload
		1142	'""' => \&as_string,
		1143	fallback => 1;
		1144
		1145	our $MAX_RESET = 3600;
		1146	our $DEFAULT_RESET = 3000;
		1147
		1148	sub generate_random_map {
		1149	my ($self, $rmp) = @_;
		1150	# mit "rum" bekleckern, nicht
		1151	$self->_create_random_map (
		1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1155	$rmp->{exit_on_final_map},
		1156	$rmp->{xsize}, $rmp->{ysize},
		1157	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1158	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1159	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1160	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1161	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1162	(cf::region::find $rmp->{region}), $rmp->{custom}
		1163	)
		1164	}
		1165
		1166	=item cf::map->register ($regex, $prio)
		1167
		1168	Register a handler for the map path matching the given regex at the
		1169	givne priority (higher is better, built-in handlers have priority 0, the
		1170	default).
		1171
		1172	=cut
		1173
		1174	sub register {
		1175	my (undef, $regex, $prio) = @_;
		1176	my $pkg = caller;
		1177
		1178	no strict;
		1179	push @{"$pkg\::ISA"}, __PACKAGE__;
		1180
		1181	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1182	}
		1183
		1184	# also paths starting with '/'
		1185	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1186
		1187	sub thawer_merge {
		1188	my ($self, $merge) = @_;
		1189
		1190	# we have to keep some variables in memory intact
		1191	local $self->{path};
		1192	local $self->{load_path};
		1193	local $self->{deny_save};
		1194	local $self->{deny_reset};
		1195
		1196	$self->SUPER::thawer_merge ($merge);
		1197	}
		1198
		1199	sub normalise {
		1200	my ($path, $base) = @_;
		1201
		1202	$path = "$path"; # make sure its a string
		1203
		1204	$path =~ s/\.map$//;
		1205
		1206	# map plan:
		1207	#
		1208	# /! non-realised random map exit (special hack!)
		1209	# {... are special paths that are not being touched
		1210	# ?xxx/... are special absolute paths
		1211	# ?random/... random maps
		1212	# /... normal maps
		1213	# ~user/... per-player map of a specific user
		1214
		1215	$path =~ s/$PATH_SEP/\//go;
		1216
		1217	# treat it as relative path if it starts with
		1218	# something that looks reasonable
		1219	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1220	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1221
		1222	$base =~ s{[^/]+/?$}{};
		1223	$path = "$base/$path";
		1224	}
		1225
		1226	for ($path) {
		1227	redo if s{//}{/};
		1228	redo if s{/\.?/}{/};
		1229	redo if s{/[^/]+/\.\./}{/};
		1230	}
		1231
		1232	$path
		1233	}
		1234
		1235	sub new_from_path {
		1236	my (undef, $path, $base) = @_;
		1237
		1238	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1239
		1240	$path = normalise $path, $base;
		1241
		1242	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1243	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1244	my $self = bless cf::map::new, $pkg;
		1245	$self->{path} = $path; $self->path ($path);
		1246	$self->init; # pass $1 etc.
		1247	return $self;
		1248	}
		1249	}
		1250
		1251	Carp::carp "unable to resolve path '$path' (base '$base').";
		1252	()
		1253	}
		1254
		1255	sub init {
		1256	my ($self) = @_;
		1257
		1258	$self
		1259	}
		1260
		1261	sub as_string {
		1262	my ($self) = @_;
		1263
		1264	"$self->{path}"
		1265	}
		1266
		1267	# the displayed name, this is a one way mapping
		1268	sub visible_name {
		1269	&as_string
		1270	}
		1271
		1272	# the original (read-only) location
		1273	sub load_path {
		1274	my ($self) = @_;
		1275
		1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1277	}
		1278
		1279	# the temporary/swap location
		1280	sub save_path {
		1281	my ($self) = @_;
		1282
		1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1285	}
		1286
		1287	# the unique path, undef == no special unique path
		1288	sub uniq_path {
		1289	my ($self) = @_;
		1290
		1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1293	}
		1294
		1295	# and all this just because we cannot iterate over
		1296	# all maps in C++...
		1297	sub change_all_map_light {
		1298	my ($change) = @_;
		1299
		1300	$_->change_map_light ($change)
		1301	for grep $_->outdoor, values %cf::MAP;
		1302	}
		1303
		1304	sub unlink_save {
		1305	my ($self) = @_;
		1306
		1307	utf8::encode (my $save = $self->save_path);
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1310
		1311	#d#TODO remove .map and also nuke
		1312	$save =~ s/\.map// or return;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1315	}
		1316
		1317	sub load_header_from($) {
		1318	my ($self, $path) = @_;
		1319
		1320	utf8::encode $path;
		1321	#aio_open $path, O_RDONLY, 0
		1322	# or return;
		1323
		1324	$self->_load_header ($path)
		1325	or return;
		1326
		1327	$self->{load_path} = $path;
		1328
		1329	1
		1330	}
		1331
		1332	sub load_header_orig {
		1333	my ($self) = @_;
		1334
		1335	$self->load_header_from ($self->load_path)
		1336	}
		1337
		1338	sub load_header_temp {
		1339	my ($self) = @_;
		1340
		1341	$self->load_header_from ($self->save_path)
		1342	}
		1343
		1344	sub prepare_temp {
		1345	my ($self) = @_;
		1346
		1347	$self->last_access ((delete $self->{last_access})
		1348	|| $cf::RUNTIME); #d#
		1349	# safety
		1350	$self->{instantiate_time} = $cf::RUNTIME
		1351	if $self->{instantiate_time} > $cf::RUNTIME;
		1352	}
		1353
		1354	sub prepare_orig {
		1355	my ($self) = @_;
		1356
		1357	$self->{load_original} = 1;
		1358	$self->{instantiate_time} = $cf::RUNTIME;
		1359	$self->last_access ($cf::RUNTIME);
		1360	$self->instantiate;
		1361	}
		1362
		1363	sub load_header {
		1364	my ($self) = @_;
		1365
		1366	if ($self->load_header_temp) {
		1367	$self->prepare_temp;
		1368	} else {
		1369	$self->load_header_orig
		1370	or return;
		1371	$self->prepare_orig;
		1372	}
		1373
		1374	1
		1375	}
		1376
		1377	sub find;
		1378	sub find {
		1379	my ($path, $origin) = @_;
		1380
		1381	$path = normalise $path, $origin && $origin->path;
		1382
		1383	cf::lock_wait "map_find:$path";
		1384
		1385	$cf::MAP{$path} || do {
		1386	my $guard = cf::lock_acquire "map_find:$path";
		1387	my $map = new_from_path cf::map $path
		1388	or return;
		1389
		1390	$map->{last_save} = $cf::RUNTIME;
		1391
		1392	$map->load_header
		1393	or return;
		1394
		1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1396	# doing this can freeze the server in a sync job, obviously
		1397	#$cf::WAIT_FOR_TICK->wait;
		1398	$map->reset;
		1399	undef $guard;
		1400	return find $path;
		1401	}
		1402
		1403	$cf::MAP{$path} = $map
		1404	}
		1405	}
		1406
		1407	sub pre_load { }
		1408	sub post_load { }
		1409
		1410	sub load {
		1411	my ($self) = @_;
		1412
		1413	local $self->{deny_reset} = 1; # loading can take a long time
		1414
		1415	my $path = $self->{path};
		1416	my $guard = cf::lock_acquire "map_load:$path";
		1417
		1418	return if $self->in_memory != cf::MAP_SWAPPED;
		1419
		1420	$self->in_memory (cf::MAP_LOADING);
		1421
		1422	$self->alloc;
		1423
		1424	$self->pre_load;
		1425
		1426	$self->_load_objects ($self->{load_path}, 1)
		1427	or return;
		1428
		1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1430	if delete $self->{load_original};
		1431
		1432	if (my $uniq = $self->uniq_path) {
		1433	utf8::encode $uniq;
		1434	if (aio_open $uniq, O_RDONLY, 0) {
		1435	$self->clear_unique_items;
		1436	$self->_load_objects ($uniq, 0);
		1437	}
		1438	}
		1439
		1440	Coro::cede;
		1441
		1442	# now do the right thing for maps
		1443	$self->link_multipart_objects;
		1444
		1445	unless ($self->{deny_activate}) {
		1446	$self->decay_objects;
		1447	$self->fix_auto_apply;
		1448	$self->update_buttons;
		1449	Coro::cede;
		1450	$self->set_darkness_map;
		1451	$self->difficulty ($self->estimate_difficulty)
		1452	unless $self->difficulty;
		1453	Coro::cede;
		1454	$self->activate;
		1455	}
		1456
		1457	$self->post_load;
		1458
		1459	$self->in_memory (cf::MAP_IN_MEMORY);
		1460	}
		1461
		1462	sub customise_for {
		1463	my ($self, $ob) = @_;
		1464
		1465	return find "~" . $ob->name . "/" . $self->{path}
		1466	if $self->per_player;
		1467
		1468	$self
		1469	}
		1470
		1471	# find and load all maps in the 3x3 area around a map
		1472	sub load_diag {
819	my ($map) = @_;	1473	my ($map) = @_;
820		1474
821	my $path = $map->tmpname;	1475	my @diag; # diagonal neighbours
822	defined $path or return;
823		1476
824	unlink "$path.pst";	1477	for (0 .. 3) {
825	};	1478	my $neigh = $map->tile_path ($_)
		1479	or next;
		1480	$neigh = find $neigh, $map
		1481	or next;
		1482	$neigh->load;
826		1483
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1486	}
828		1487
829	#############################################################################	1488	for (@diag) {
830	# load/save perl data associated with player->ob objects	1489	my $neigh = find @$_
831		1490	or next;
832	sub all_objects(@) {	1491	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1492	}
834	}	1493	}
835		1494
836	# TODO: compatibility cruft, remove when no longer needed	1495	sub find_sync {
837	cf::player->attach (	1496	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1497
841	for my $o (all_objects $pl->ob) {	1498	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1499	}
843	$o->set_ob_key_value ("_perl_data");
844		1500
845	%$o = %{ Storable::thaw pack "H*", $value };	1501	sub do_load_sync {
		1502	my ($map) = @_;
		1503
		1504	cf::sync_job { $map->load };
		1505	}
		1506
		1507	our %MAP_PREFETCH;
		1508	our $MAP_PREFETCHER = undef;
		1509
		1510	sub find_async {
		1511	my ($path, $origin) = @_;
		1512
		1513	$path = normalise $path, $origin && $origin->{path};
		1514
		1515	if (my $map = $cf::MAP{$path}) {
		1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1517	}
		1518
		1519	undef $MAP_PREFETCH{$path};
		1520	$MAP_PREFETCHER ||= cf::async {
		1521	while (%MAP_PREFETCH) {
		1522	for my $path (keys %MAP_PREFETCH) {
		1523	my $map = find $path
		1524	or next;
		1525	$map->load;
		1526
		1527	delete $MAP_PREFETCH{$path};
846	}	1528	}
847	}	1529	}
		1530	undef $MAP_PREFETCHER;
		1531	};
		1532	$MAP_PREFETCHER->prio (6);
		1533
		1534	()
		1535	}
		1536
		1537	sub save {
		1538	my ($self) = @_;
		1539
		1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1541
		1542	$self->{last_save} = $cf::RUNTIME;
		1543
		1544	return unless $self->dirty;
		1545
		1546	my $save = $self->save_path; utf8::encode $save;
		1547	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1548
		1549	$self->{load_path} = $save;
		1550
		1551	return if $self->{deny_save};
		1552
		1553	local $self->{last_access} = $self->last_access;#d#
		1554
		1555	cf::async {
		1556	$_->contr->save for $self->players;
		1557	};
		1558
		1559	if ($uniq) {
		1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1562	} else {
		1563	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1564	}
849	);	1565	}
850		1566
851	#############################################################################	1567	sub swap_out {
		1568	my ($self) = @_;
852		1569
853	=head2 CORE EXTENSIONS	1570	# save first because save cedes
		1571	$self->save;
854		1572
855	Functions and methods that extend core crossfire objects.	1573	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1574
857	=head3 cf::player	1575	return if $self->players;
		1576	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1577	return if $self->{deny_save};
		1578
		1579	$self->clear;
		1580	$self->in_memory (cf::MAP_SWAPPED);
		1581	}
		1582
		1583	sub reset_at {
		1584	my ($self) = @_;
		1585
		1586	# TODO: safety, remove and allow resettable per-player maps
		1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1588	return 1e99 if $self->{deny_reset};
		1589
		1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1591	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1592
		1593	$time + $to
		1594	}
		1595
		1596	sub should_reset {
		1597	my ($self) = @_;
		1598
		1599	$self->reset_at <= $cf::RUNTIME
		1600	}
		1601
		1602	sub reset {
		1603	my ($self) = @_;
		1604
		1605	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1606
		1607	return if $self->players;
		1608	return if $self->isa ("ext::map_per_player");#d#
		1609
		1610	warn "resetting map ", $self->path;#d#
		1611
		1612	$self->in_memory (cf::MAP_SWAPPED);
		1613
		1614	# need to save uniques path
		1615	unless ($self->{deny_save}) {
		1616	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1617
		1618	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1619	if $uniq;
		1620	}
		1621
		1622	delete $cf::MAP{$self->path};
		1623
		1624	$self->clear;
		1625
		1626	$_->clear_links_to ($self) for values %cf::MAP;
		1627
		1628	$self->unlink_save;
		1629	$self->destroy;
		1630	}
		1631
		1632	my $nuke_counter = "aaaa";
		1633
		1634	sub nuke {
		1635	my ($self) = @_;
		1636
		1637	delete $cf::MAP{$self->path};
		1638
		1639	$self->unlink_save;
		1640
		1641	bless $self, "cf::map";
		1642	delete $self->{deny_reset};
		1643	$self->{deny_save} = 1;
		1644	$self->reset_timeout (1);
		1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1646
		1647	$cf::MAP{$self->path} = $self;
		1648
		1649	$self->reset; # polite request, might not happen
		1650	}
		1651
		1652	=item cf::map::unique_maps
		1653
		1654	Returns an arrayref of paths of all shared maps that have
		1655	instantiated unique items. May block.
		1656
		1657	=cut
		1658
		1659	sub unique_maps() {
		1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1661	or return;
		1662
		1663	my @paths;
		1664
		1665	for (@$files) {
		1666	utf8::decode $_;
		1667	next if /\.pst$/;
		1668	next unless /^$PATH_SEP/o;
		1669
		1670	push @paths, cf::map::normalise $_;
		1671	}
		1672
		1673	\@paths
		1674	}
		1675
		1676	package cf;
		1677
		1678	=back
		1679
		1680	=head3 cf::object
		1681
		1682	=cut
		1683
		1684	package cf::object;
858		1685
859	=over 4	1686	=over 4
860		1687
861	=item cf::player::exists $login	1688	=item $ob->inv_recursive
862		1689
863	Returns true when the given account exists.	1690	Returns the inventory of the object _and_ their inventories, recursively.
864		1691
865	=cut	1692	=cut
866		1693
867	sub cf::player::exists($) {	1694	sub inv_recursive_;
868	cf::player::find $_[0]	1695	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1696	map { $_, inv_recursive_ $_->inv } @_
870	}	1697	}
871		1698
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1699	sub inv_recursive {
873		1700	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	}	1701	}
		1702
		1703	package cf;
885		1704
886	=back	1705	=back
887		1706
888	=head3 cf::object::player	1707	=head3 cf::object::player
889		1708
…		…
927	(ref $cf::CFG{"may_$access"}	1746	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1747	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1748	: $cf::CFG{"may_$access"})
930	}	1749	}
931		1750
		1751	=item $player_object->enter_link
		1752
		1753	Freezes the player and moves him/her to a special map (C<{link}>).
		1754
		1755	The player should be reasonably safe there for short amounts of time. You
		1756	I<MUST> call C<leave_link> as soon as possible, though.
		1757
		1758	Will never block.
		1759
		1760	=item $player_object->leave_link ($map, $x, $y)
		1761
		1762	Moves the player out of the special C<{link}> map onto the specified
		1763	map. If the map is not valid (or omitted), the player will be moved back
		1764	to the location he/she was before the call to C<enter_link>, or, if that
		1765	fails, to the emergency map position.
		1766
		1767	Might block.
		1768
		1769	=cut
		1770
		1771	sub link_map {
		1772	unless ($LINK_MAP) {
		1773	$LINK_MAP = cf::map::find "{link}"
		1774	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1775	$LINK_MAP->load;
		1776	}
		1777
		1778	$LINK_MAP
		1779	}
		1780
		1781	sub cf::object::player::enter_link {
		1782	my ($self) = @_;
		1783
		1784	$self->deactivate_recursive;
		1785
		1786	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1787
		1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1789	if $self->map;
		1790
		1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1792	}
		1793
		1794	sub cf::object::player::leave_link {
		1795	my ($self, $map, $x, $y) = @_;
		1796
		1797	my $link_pos = delete $self->{_link_pos};
		1798
		1799	unless ($map) {
		1800	# restore original map position
		1801	($map, $x, $y) = @{ $link_pos || [] };
		1802	$map = cf::map::find $map;
		1803
		1804	unless ($map) {
		1805	($map, $x, $y) = @$EMERGENCY_POSITION;
		1806	$map = cf::map::find $map
		1807	or die "FATAL: cannot load emergency map\n";
		1808	}
		1809	}
		1810
		1811	($x, $y) = (-1, -1)
		1812	unless (defined $x) && (defined $y);
		1813
		1814	# use -1 or undef as default coordinates, not 0, 0
		1815	($x, $y) = ($map->enter_x, $map->enter_y)
		1816	if $x <=0 && $y <= 0;
		1817
		1818	$map->load;
		1819	$map->load_diag;
		1820
		1821	return unless $self->contr->active;
		1822	$self->activate_recursive;
		1823	$self->enter_map ($map, $x, $y);
		1824	}
		1825
		1826	cf::player->attach (
		1827	on_logout => sub {
		1828	my ($pl) = @_;
		1829
		1830	# abort map switching before logout
		1831	if ($pl->ob->{_link_pos}) {
		1832	cf::sync_job {
		1833	$pl->ob->leave_link
		1834	};
		1835	}
		1836	},
		1837	on_login => sub {
		1838	my ($pl) = @_;
		1839
		1840	# try to abort aborted map switching on player login :)
		1841	# should happen only on crashes
		1842	if ($pl->ob->{_link_pos}) {
		1843	$pl->ob->enter_link;
		1844	(async {
		1845	# we need this sleep as the login has a concurrent enter_exit running
		1846	# and this sleep increases chances of the player not ending up in scorn
		1847	$pl->ob->reply (undef,
		1848	"There was an internal problem at your last logout, "
		1849	. "the server will try to bring you to your intended destination in a second.",
		1850	cf::NDI_RED);
		1851	Coro::Timer::sleep 1;
		1852	$pl->ob->leave_link;
		1853	})->prio (2);
		1854	}
		1855	},
		1856	);
		1857
		1858	=item $player_object->goto ($path, $x, $y)
		1859
		1860	=cut
		1861
		1862	sub cf::object::player::goto {
		1863	my ($self, $path, $x, $y) = @_;
		1864
		1865	$self->enter_link;
		1866
		1867	(async {
		1868	my $map = eval {
		1869	my $map = cf::map::find $path;
		1870	$map = $map->customise_for ($self) if $map;
		1871	$map
		1872	} or
		1873	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1874
		1875	$self->leave_link ($map, $x, $y);
		1876	})->prio (1);
		1877	}
		1878
		1879	=item $player_object->enter_exit ($exit_object)
		1880
		1881	=cut
		1882
		1883	sub parse_random_map_params {
		1884	my ($spec) = @_;
		1885
		1886	my $rmp = { # defaults
		1887	xsize => (cf::rndm 15, 40),
		1888	ysize => (cf::rndm 15, 40),
		1889	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1890	#layout => string,
		1891	};
		1892
		1893	for (split /\n/, $spec) {
		1894	my ($k, $v) = split /\s+/, $_, 2;
		1895
		1896	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1897	}
		1898
		1899	$rmp
		1900	}
		1901
		1902	sub prepare_random_map {
		1903	my ($exit) = @_;
		1904
		1905	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1906
		1907	# all this does is basically replace the /! path by
		1908	# a new random map path (?random/...) with a seed
		1909	# that depends on the exit object
		1910
		1911	my $rmp = parse_random_map_params $exit->msg;
		1912
		1913	if ($exit->map) {
		1914	$rmp->{region} = $exit->region->name;
		1915	$rmp->{origin_map} = $exit->map->path;
		1916	$rmp->{origin_x} = $exit->x;
		1917	$rmp->{origin_y} = $exit->y;
		1918	}
		1919
		1920	$rmp->{random_seed} ||= $exit->random_seed;
		1921
		1922	my $data = cf::to_json $rmp;
		1923	my $md5 = Digest::MD5::md5_hex $data;
		1924	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1925
		1926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1927	aio_write $fh, 0, (length $data), $data, 0;
		1928	undef $fh;
		1929	aio_rename "$meta~", $meta;
		1930
		1931	$exit->slaying ("?random/$md5");
		1932	$exit->msg (undef);
		1933	}
		1934	}
		1935
		1936	sub cf::object::player::enter_exit {
		1937	my ($self, $exit) = @_;
		1938
		1939	return unless $self->type == cf::PLAYER;
		1940
		1941	if ($exit->slaying eq "/!") {
		1942	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1943	cf::sync_job { prepare_random_map $exit };
		1944	}
		1945
		1946	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1947	my $hp = $exit->stats->hp;
		1948	my $sp = $exit->stats->sp;
		1949
		1950	$self->enter_link;
		1951
		1952	(async {
		1953	$self->deactivate_recursive; # just to be sure
		1954	unless (eval {
		1955	$self->goto ($slaying, $hp, $sp);
		1956
		1957	1;
		1958	}) {
		1959	$self->message ("Something went wrong deep within the crossfire server. "
		1960	. "I'll try to bring you back to the map you were before. "
		1961	. "Please report this to the dungeon master!",
		1962	cf::NDI_UNIQUE | cf::NDI_RED);
		1963
		1964	warn "ERROR in enter_exit: $@";
		1965	$self->leave_link;
		1966	}
		1967	})->prio (1);
		1968	}
		1969
932	=head3 cf::client	1970	=head3 cf::client
933		1971
934	=over 4	1972	=over 4
935		1973
936	=item $client->send_drawinfo ($text, $flags)	1974	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	2017	on_reply => sub {
980	my ($ns, $msg) = @_;	2018	my ($ns, $msg) = @_;
981		2019
982	# this weird shuffling is so that direct followup queries	2020	# this weird shuffling is so that direct followup queries
983	# get handled first	2021	# get handled first
984	my $queue = delete $ns->{query_queue};	2022	my $queue = delete $ns->{query_queue}
		2023	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2024
986	(shift @$queue)->[1]->($msg);	2025	(shift @$queue)->[1]->($msg);
		2026	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2027
988	push @{ $ns->{query_queue} }, @$queue;	2028	push @{ $ns->{query_queue} }, @$queue;
989		2029
990	if (@{ $ns->{query_queue} } == @$queue) {	2030	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2031	if (@$queue) {
…		…
995	}	2035	}
996	}	2036	}
997	},	2037	},
998	);	2038	);
999		2039
1000	=item $client->coro (\&cb)	2040	=item $client->async (\&cb)
1001		2041
1002	Create a new coroutine, running the specified callback. The coroutine will	2042	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2043	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2044	or loss of connection).
1005		2045
1006	=cut	2046	=cut
1007		2047
1008	sub cf::client::coro {	2048	sub cf::client::async {
1009	my ($self, $cb) = @_;	2049	my ($self, $cb) = @_;
1010		2050
1011	my $coro; $coro = async {	2051	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2052
1018	$coro->on_destroy (sub {	2053	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2054	delete $self->{_coro}{$coro+0};
1020	});	2055	});
1021		2056
…		…
1157	The parameter C<$family> should best start with the name of the extension	2192	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2193	using it, it should be unique.
1159		2194
1160	=over 4	2195	=over 4
1161		2196
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	2197	=item $value = cf::db_get $family => $key
1169		2198
1170	Returns a single value from the database	2199	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		2200
1177	=item cf::db_put $family => $key => $value	2201	=item cf::db_put $family => $key => $value
1178		2202
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2203	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		2204
1190	=cut	2205	=cut
1191		2206
1192	our $DB;	2207	our $DB;
1193		2208
1194	{	2209	sub db_init {
		2210	unless ($DB) {
		2211	$DB = BDB::db_create $DB_ENV;
		2212
		2213	cf::sync_job {
		2214	eval {
		2215	$DB->set_flags (BDB::CHKSUM);
		2216
		2217	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2218	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2219	cf::cleanup "db_open(db): $!" if $!;
		2220	};
		2221	cf::cleanup "db_open(db): $@" if $@;
		2222	};
		2223
1195	my $path = cf::localdir . "/database.pst";	2224	my $path = cf::localdir . "/database.pst";
		2225	if (stat $path) {
		2226	cf::sync_job {
		2227	my $pst = Storable::retrieve $path;
1196		2228
1197	sub db_load() {	2229	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2230	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2231	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2232	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2233
1202	my $pid;	2234	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	}	2235	};
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {
1241	$DB->{$_[0]} = $_[1];
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	2236	}
1251	);	2237	}
		2238	}
		2239
		2240	sub db_get($$) {
		2241	my $key = "$_[0]/$_[1]";
		2242
		2243	cf::sync_job {
		2244	BDB::db_get $DB, undef, $key, my $data;
		2245
		2246	$! ? ()
		2247	: Compress::LZF::sthaw $data
		2248	}
		2249	}
		2250
		2251	sub db_put($$$) {
		2252	BDB::dbreq_pri 4;
		2253	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1252	}	2254	}
1253		2255
1254	#############################################################################	2256	#############################################################################
1255	# the server's main()	2257	# the server's init and main functions
		2258
		2259	sub load_resources {
		2260	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2261	or die "unable to load regions file\n";#d#
		2262	}
1256		2263
1257	sub cfg_load {	2264	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2265	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2266	or return;
1260		2267
1261	local $/;	2268	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2269	*CFG = YAML::Syck::Load <$fh>;
		2270
		2271	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2272
		2273	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2274	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2275
		2276	if (exists $CFG{mlockall}) {
		2277	eval {
		2278	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2279	and die "WARNING: m(un)lockall failed: $!\n";
		2280	};
		2281	warn $@ if $@;
		2282	}
		2283	}
		2284
		2285	sub init {
		2286	load_resources;
1263	}	2287	}
1264		2288
1265	sub main {	2289	sub main {
		2290	# we must not ever block the main coroutine
		2291	local $Coro::idle = sub {
		2292	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2293	(async {
		2294	Event::one_event;
		2295	})->prio (Coro::PRIO_MAX);
		2296	};
		2297
1266	cfg_load;	2298	cfg_load;
1267	db_load;	2299	db_init;
1268	load_extensions;	2300	load_extensions;
		2301
		2302	$TICK_WATCHER->start;
1269	Event::loop;	2303	Event::loop;
1270	}	2304	}
1271		2305
1272	#############################################################################	2306	#############################################################################
1273	# initialisation	2307	# initialisation and cleanup
1274		2308
		2309	# install some emergency cleanup handlers
		2310	BEGIN {
		2311	for my $signal (qw(INT HUP TERM)) {
		2312	Event->signal (
		2313	reentrant => 0,
		2314	data => WF_AUTOCANCEL,
		2315	signal => $signal,
		2316	prio => 0,
		2317	cb => sub {
		2318	cf::cleanup "SIG$signal";
		2319	},
		2320	);
		2321	}
		2322	}
		2323
		2324	sub emergency_save() {
		2325	my $freeze_guard = cf::freeze_mainloop;
		2326
		2327	warn "enter emergency perl save\n";
		2328
		2329	cf::sync_job {
		2330	# use a peculiar iteration method to avoid tripping on perl
		2331	# refcount bugs in for. also avoids problems with players
		2332	# and maps saved/destroyed asynchronously.
		2333	warn "begin emergency player save\n";
		2334	for my $login (keys %cf::PLAYER) {
		2335	my $pl = $cf::PLAYER{$login} or next;
		2336	$pl->valid or next;
		2337	$pl->save;
		2338	}
		2339	warn "end emergency player save\n";
		2340
		2341	warn "begin emergency map save\n";
		2342	for my $path (keys %cf::MAP) {
		2343	my $map = $cf::MAP{$path} or next;
		2344	$map->valid or next;
		2345	$map->save;
		2346	}
		2347	warn "end emergency map save\n";
		2348
		2349	warn "begin emergency database checkpoint\n";
		2350	BDB::db_env_txn_checkpoint $DB_ENV;
		2351	warn "end emergency database checkpoint\n";
		2352	};
		2353
		2354	warn "leave emergency perl save\n";
		2355	}
		2356
		2357	sub post_cleanup {
		2358	my ($make_core) = @_;
		2359
		2360	warn Carp::longmess "post_cleanup backtrace"
		2361	if $make_core;
		2362	}
		2363
1275	sub _perl_reload() {	2364	sub reload() {
		2365	# can/must only be called in main
		2366	if ($Coro::current != $Coro::main) {
		2367	warn "can only reload from main coroutine";
		2368	return;
		2369	}
		2370
1276	warn "reloading...";	2371	warn "reloading...";
1277		2372
1278	eval {	2373	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2374
		2375	cf::sync_job {
		2376	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2377	cf::emergency_save;
		2378	cf::write_runtime; # external watchdog should not bark
1282		2379
1283	# cancel all watchers	2380	warn "syncing database to disk";
		2381	BDB::db_env_txn_checkpoint $DB_ENV;
		2382
		2383	# if anything goes wrong in here, we should simply crash as we already saved
		2384
		2385	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2386	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2387	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2388	}
1287		2389
		2390	warn "flushing outstanding aio requests";
		2391	for (;;) {
		2392	BDB::flush;
		2393	IO::AIO::flush;
		2394	Coro::cede;
		2395	last unless IO::AIO::nreqs || BDB::nreqs;
		2396	warn "iterate...";
		2397	}
		2398
1288	# cancel all extension coros	2399	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2400	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2401	%EXT_CORO = ();
1291		2402
1292	# unload all extensions	2403	warn "removing commands";
1293	for (@exts) {	2404	%COMMAND = ();
		2405
		2406	warn "removing ext commands";
		2407	%EXTCMD = ();
		2408
		2409	warn "unloading/nuking all extensions";
		2410	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2411	warn "... unloading $pkg";
1295	unload_extension $_;	2412
		2413	if (my $cb = $pkg->can ("unload")) {
		2414	eval {
		2415	$cb->($pkg);
		2416	1
		2417	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2418	}
1297		2419
		2420	warn "... nuking $pkg";
		2421	Symbol::delete_package $pkg;
		2422	}
		2423
1298	# unload all modules loaded from $LIBDIR	2424	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2425	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2426	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2427
1302	warn "removing <$k>";	2428	warn "... unloading $k";
1303	delete $INC{$k};	2429	delete $INC{$k};
1304		2430
1305	$k =~ s/\.pm$//;	2431	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2432	$k =~ s/\//::/g;
1307		2433
…		…
1310	}	2436	}
1311		2437
1312	Symbol::delete_package $k;	2438	Symbol::delete_package $k;
1313	}	2439	}
1314		2440
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2441	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2442	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2443	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2444
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2445	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2446	delete $INC{"cf.pm"};
1328		2447
1329	# don't, removes xs symbols, too,	2448	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2449	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2450	#Symbol::delete_package __PACKAGE__;
1332		2451
1333	# reload cf.pm	2452	warn "unload completed, starting to reload now";
		2453
1334	warn "reloading cf.pm";	2454	warn "reloading cf.pm";
1335	require cf;	2455	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2456	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2457
1338	# load config and database again	2458	warn "loading config and database again";
1339	cf::cfg_load;	2459	cf::cfg_load;
1340	cf::db_load;
1341		2460
1342	# load extensions
1343	warn "load extensions";	2461	warn "loading extensions";
1344	cf::load_extensions;	2462	cf::load_extensions;
1345		2463
1346	# reattach attachments to objects	2464	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2465	_global_reattach;
		2466	warn "reattaching attachments to maps";
		2467	reattach $_ for values %MAP;
		2468
		2469	warn "loading reloadable resources";
		2470	load_resources;
		2471
		2472	warn "leaving sync_job";
		2473
		2474	1
		2475	} or do {
		2476	warn $@;
		2477	warn "error while reloading, exiting.";
		2478	exit 1;
1349	};	2479	};
1350	warn $@ if $@;
1351		2480
1352	warn "reloaded";	2481	warn "reloaded";
1353	};	2482	};
1354		2483
1355	sub perl_reload() {	2484	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2485
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2486	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2487	my ($who, $arg) = @_;
1363		2488
1364	if ($who->flag (FLAG_WIZ)) {	2489	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2490	$who->message ("reloading server.");
1366	_perl_reload;	2491
		2492	# doing reload synchronously and two reloads happen back-to-back,
		2493	# coro crashes during coro_state_free->destroy here.
		2494
		2495	$RELOAD_WATCHER ||= Event->timer (
		2496	reentrant => 0,
		2497	after => 0,
		2498	data => WF_AUTOCANCEL,
		2499	cb => sub {
		2500	reload;
		2501	undef $RELOAD_WATCHER;
		2502	},
		2503	);
1367	}	2504	}
1368	};	2505	};
1369		2506
1370	unshift @INC, $LIBDIR;	2507	unshift @INC, $LIBDIR;
		2508
		2509	my $bug_warning = 0;
1371		2510
1372	$TICK_WATCHER = Event->timer (	2511	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2512	reentrant => 0,
		2513	parked => 1,
1374	prio => 0,	2514	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2515	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2516	data => WF_AUTOCANCEL,
1377	cb => sub {	2517	cb => sub {
1378	unless ($FREEZE) {	2518	if ($Coro::current != $Coro::main) {
		2519	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2520	unless ++$bug_warning > 10;
		2521	return;
		2522	}
		2523
		2524	$NOW = Event::time;
		2525
1379	cf::server_tick; # one server iteration	2526	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2527	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2528	$NEXT_TICK += $TICK;
		2529
		2530	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2531	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2532	Coro::async_pool {
		2533	write_runtime
		2534	or warn "ERROR: unable to write runtime file: $!";
		2535	};
		2536	}
		2537
		2538
		2539	$WAIT_FOR_TICK->broadcast;
		2540	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2541
		2542	# my $AFTER = Event::time;
		2543	# warn $AFTER - $NOW;#d#
1384		2544
1385	# if we are delayed by four ticks or more, skip them all	2545	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2546	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2547
1388	$TICK_WATCHER->at ($NEXT_TICK);	2548	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2549	$TICK_WATCHER->start;
1390	},	2550	},
1391	);	2551	);
1392		2552
		2553	{
		2554	BDB::max_poll_time $TICK * 0.1;
		2555	$BDB_POLL_WATCHER = Event->io (
		2556	reentrant => 0,
		2557	fd => BDB::poll_fileno,
		2558	poll => 'r',
		2559	prio => 0,
		2560	data => WF_AUTOCANCEL,
		2561	cb => \&BDB::poll_cb,
		2562	);
		2563	BDB::min_parallel 8;
		2564
		2565	BDB::set_sync_prepare {
		2566	my $status;
		2567	my $current = $Coro::current;
		2568	(
		2569	sub {
		2570	$status = $!;
		2571	$current->ready; undef $current;
		2572	},
		2573	sub {
		2574	Coro::schedule while defined $current;
		2575	$! = $status;
		2576	},
		2577	)
		2578	};
		2579
		2580	unless ($DB_ENV) {
		2581	$DB_ENV = BDB::db_env_create;
		2582
		2583	cf::sync_job {
		2584	eval {
		2585	BDB::db_env_open
		2586	$DB_ENV,
		2587	$BDB_ENV_DIR,
		2588	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2589	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2590	0666;
		2591
		2592	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2593
		2594	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2595	$DB_ENV->set_lk_detect;
		2596	};
		2597
		2598	cf::cleanup "db_env_open(db): $@" if $@;
		2599	};
		2600	}
		2601	}
		2602
		2603	{
		2604	IO::AIO::min_parallel 8;
		2605
		2606	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2607	IO::AIO::max_poll_time $TICK * 0.1;
1394		2608	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2609	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2610	data => WF_AUTOCANCEL,
		2611	fd => IO::AIO::poll_fileno,
		2612	poll => 'r',
		2613	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2614	cb => \&IO::AIO::poll_cb,
		2615	);
		2616	}
1400		2617
1401	# we must not ever block the main coroutine	2618	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		2619
1410	1	2620	1
1411		2621

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