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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 1.209 by root, Mon Feb 12 01:25:55 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
		22	use Digest::MD5;
20	use Fcntl;	23	use Fcntl;
21	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
22	use YAML::Syck ();	25	use YAML::Syck ();
23	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
24		30
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
26		34
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
29		37
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		39
34	our %COMMAND = ();	40	our %COMMAND = ();
35	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
37		47
38	our @EVENT;	48	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
40		50
41	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
43	our $NEXT_TICK;	55	our $NEXT_TICK;
44	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
45		61
46	our %CFG;	62	our %CFG;
47		63
48	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	65	our $RUNTIME;
50		66
		67	our %PLAYER; # all users
51	our %MAP; # all maps	68	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	70	our $RANDOM_MAPS = cf::localdir . "/random";
		71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		78
55	binmode STDOUT;	79	binmode STDOUT;
56	binmode STDERR;	80	binmode STDERR;
57		81
58	# read virtual server time, if available	82	# read virtual server time, if available
…		…
64		88
65	mkdir cf::localdir;	89	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
		93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
69		95
70	our %EXT_CORO;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
71		99
72	#############################################################################	100	#############################################################################
73		101
74	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
75		103
…		…
99		127
100	=item %cf::CFG	128	=item %cf::CFG
101		129
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
104		139
105	=back	140	=back
106		141
107	=cut	142	=cut
108		143
…		…
112	utf8::encode $msg;	147	utf8::encode $msg;
113		148
114	$msg .= "\n"	149	$msg .= "\n"
115	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
116		151
117	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
118	};	153	};
119	}	154	}
120		155
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		175
141	$Event::DIED = sub {	176	$Event::DIED = sub {
142	warn "error in event callback: @_";	177	warn "error in event callback: @_";
143	};	178	};
144		179
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
150		181
151	=over 4	182	=over 4
152		183
		184	=item dumpval $ref
		185
153	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
154		206
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
156		208
157	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
158		210
…		…
174	sub to_json($) {	226	sub to_json($) {
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
177	}	229	}
178		230
179	# main coro must never ever "block" except in Event	231	=item cf::lock_wait $string
180	# sync_job ensures this by running the job in a coroutine	232
181	# and waiting in Event while the server is otherwise frozen	233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
		281	$TICK_WATCHER->stop;
		282	$guard
		283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
		294
		295	=item cf::sync_job { BLOCK }
		296
		297	The design of crossfire+ requires that the main coro ($Coro::main) is
		298	always able to handle events or runnable, as crossfire+ is only partly
		299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		300
		301	If it must be done, put the blocking parts into C<sync_job>. This will run
		302	the given BLOCK in another coroutine while waiting for the result. The
		303	server will be frozen during this time, so the block should either finish
		304	fast or be very important.
		305
		306	=cut
		307
182	sub sync_job(&) {	308	sub sync_job(&) {
183	my ($job) = @_;	309	my ($job) = @_;
184		310
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	311	if ($Coro::current == $Coro::main) {
		312	# this is the main coro, too bad, we have to block
		313	# till the operation succeeds, freezing the server :/
		314
		315	# TODO: use suspend/resume instead
		316	# (but this is cancel-safe)
		317	my $freeze_guard = freeze_mainloop;
		318
		319	my $busy = 1;
		320	my @res;
		321
		322	(async {
		323	@res = eval { $job->() };
		324	warn $@ if $@;
		325	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
		327
198	while ($busy) {	328	while ($busy) {
199	Coro::cede_notself;	329	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	330	}
		331
		332	wantarray ? @res : $res[0]
202	} else {	333	} else {
203	$coro->join;	334	# we are in another coroutine, how wonderful, everything just works
		335
		336	$job->()
204	}	337	}
205
206	wantarray ? @res : $res[0]
207	}	338	}
208		339
209	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
210		341
211	Creates and returns a new coro. This coro is automcatially being canceled	342	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
213		344
214	=cut	345	=cut
215		346
216	sub coro(&) {	347	sub async_ext(&) {
217	my $cb = shift;	348	my $cb = shift;
218		349
219	my $coro; $coro = async {	350	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		351
226	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
228	});	354	});
229	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
230		356
231	$coro	357	$coro
		358	}
		359
		360	sub write_runtime {
		361	my $runtime = cf::localdir . "/runtime";
		362
		363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		364	or return;
		365
		366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
		370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		371	and return;
		372
		373	# always fsync - this file is important
		374	aio_fsync $fh
		375	and return;
		376
		377	close $fh
		378	or return;
		379
		380	aio_rename "$runtime~", $runtime
		381	and return;
		382
		383	1
232	}	384	}
233		385
234	=back	386	=back
235		387
236	=cut	388	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	520	our @CB_MAP = ();
369		521
370	my %attachment;	522	my %attachment;
371		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
372	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
374		532
375	use sort 'stable';	533	use sort 'stable';
376		534
…		…
547	# object support	705	# object support
548		706
549	sub reattach {	707	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		712
553	my $registry = $obj->registry;	713	my $registry = $obj->registry;
554		714
555	@$registry = ();	715	@$registry = ();
556		716
…		…
603	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
604		764
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	769	close $fh;
610		770
611	if (@$objs) {	771	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	777	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
619	}	779	}
620	} else {	780	} else {
621	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
627	}	787	}
628	} else {	788	} else {
629	aio_unlink $filename;	789	aio_unlink $filename;
630	aio_unlink "$filename.pst";	790	aio_unlink "$filename.pst";
631	}	791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
632	}	798	}
633	}	799	}
634		800
635	sub object_freezer_as_string {	801	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
642		808
643	sub object_thawer_load {	809	sub object_thawer_load {
644	my ($filename) = @_;	810	my ($filename) = @_;
645		811
646	my ($data, $av);	812	my ($data, $av);
		813
		814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
647		816
648	(aio_load $filename, $data) >= 0	817	(aio_load $filename, $data) >= 0
649	or return;	818	or return;
650		819
651	unless (aio_stat "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	821	(aio_load "$filename.pst", $av) >= 0
653	or return;	822	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	823	$av = eval { (Storable::thaw $av)->{objs} };
655	}	824	}
656		825
		826	warn sprintf "loading %s (%d)\n",
		827	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	828	return ($data, $av);
658	}	829	}
659		830
660	#############################################################################	831	#############################################################################
661	# command handling &c	832	# command handling &c
…		…
686	=cut	857	=cut
687		858
688	sub register_extcmd {	859	sub register_extcmd {
689	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
690		861
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
695	}	863	}
696		864
697	cf::player->attach (	865	cf::player->attach (
698	on_command => sub {	866	on_command => sub {
699	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
712		880
713	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
714		882
715	if (ref $msg) {	883	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	887	}
720	}	888	}
721	} else {	889	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		892
725	cf::override;	893	cf::override;
726	},	894	},
727	);	895	);
728		896
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	897	sub load_extension {
736	my ($path) = @_;	898	my ($path) = @_;
737		899
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	901	my $base = $1;
740	my $pkg = $1;	902	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
743		905
744	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
745		907
746	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
747	or die "$path: $!";	909	or die "$path: $!";
748		910
749	my $source =	911	my $source =
750	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
753	. "\n};\n1";	915	. "\n};\n1";
754		916
755	eval $source	917	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	919	: "extension disabled.\n";
758		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	921	warn $@;
760	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
761		923	exit 1;
762	# no strict 'refs';	924	}
763	# @{"$pkg\::ISA"} = ext::;	925	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	926	}
778		927
779	# remove commands	928	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	929	}
804		930
805	sub load_extensions {	931	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	933	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
812	}	938	}
813	}	939	}
814		940
815	#############################################################################	941	#############################################################################
816	# load/save/clean perl data associated with a map
817		942
818	*cf::mapsupport::on_clean = sub {	943	=head2 CORE EXTENSIONS
		944
		945	Functions and methods that extend core crossfire objects.
		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
		953	=head3 cf::player
		954
		955	=over 4
		956
		957	=item cf::player::find $login
		958
		959	Returns the given player object, loading it if necessary (might block).
		960
		961	=cut
		962
		963	sub playerdir($) {
		964	cf::localdir
		965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
		1111	}
		1112
		1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1114
		1115	Sends an ext reply to the player.
		1116
		1117	=cut
		1118
		1119	sub ext_reply($$$%) {
		1120	my ($self, $id, %msg) = @_;
		1121
		1122	$msg{msgid} = $id;
		1123
		1124	$self->send ("ext " . cf::to_json \%msg);
		1125	}
		1126
		1127	package cf;
		1128
		1129	=back
		1130
		1131
		1132	=head3 cf::map
		1133
		1134	=over 4
		1135
		1136	=cut
		1137
		1138	package cf::map;
		1139
		1140	use Fcntl;
		1141	use Coro::AIO;
		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
		1147	our $MAX_RESET = 3600;
		1148	our $DEFAULT_RESET = 3000;
		1149
		1150	sub generate_random_map {
		1151	my ($self, $rmp) = @_;
		1152	# mit "rum" bekleckern, nicht
		1153	$self->_create_random_map (
		1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1157	$rmp->{exit_on_final_map},
		1158	$rmp->{xsize}, $rmp->{ysize},
		1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1295	}
		1296
		1297	# and all this just because we cannot iterate over
		1298	# all maps in C++...
		1299	sub change_all_map_light {
		1300	my ($change) = @_;
		1301
		1302	$_->change_map_light ($change)
		1303	for grep $_->outdoor, values %cf::MAP;
		1304	}
		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
		1319	sub load_header_from($) {
		1320	my ($self, $path) = @_;
		1321
		1322	utf8::encode $path;
		1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
		1327	or return;
		1328
		1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
		1372	or return;
		1373	$self->prepare_orig;
		1374	}
		1375
		1376	1
		1377	}
		1378
		1379	sub find;
		1380	sub find {
		1381	my ($path, $origin) = @_;
		1382
		1383	$path = normalise $path, $origin && $origin->path;
		1384
		1385	cf::lock_wait "map_find:$path";
		1386
		1387	$cf::MAP{$path} || do {
		1388	my $guard = cf::lock_acquire "map_find:$path";
		1389	my $map = new_from_path cf::map $path
		1390	or return;
		1391
		1392	$map->{last_save} = $cf::RUNTIME;
		1393
		1394	$map->load_header
		1395	or return;
		1396
		1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
		1400	$map->reset;
		1401	undef $guard;
		1402	return find $path;
		1403	}
		1404
		1405	$cf::MAP{$path} = $map
		1406	}
		1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
		1411
		1412	sub load {
		1413	my ($self) = @_;
		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
		1417	my $path = $self->{path};
		1418	my $guard = cf::lock_acquire "map_load:$path";
		1419
		1420	return if $self->in_memory != cf::MAP_SWAPPED;
		1421
		1422	$self->in_memory (cf::MAP_LOADING);
		1423
		1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
		1428	$self->_load_objects ($self->{load_path}, 1)
		1429	or return;
		1430
		1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1432	if delete $self->{load_original};
		1433
		1434	if (my $uniq = $self->uniq_path) {
		1435	utf8::encode $uniq;
		1436	if (aio_open $uniq, O_RDONLY, 0) {
		1437	$self->clear_unique_items;
		1438	$self->_load_objects ($uniq, 0);
		1439	}
		1440	}
		1441
		1442	Coro::cede;
		1443
		1444	# now do the right thing for maps
		1445	$self->link_multipart_objects;
		1446
		1447	unless ($self->{deny_activate}) {
		1448	$self->decay_objects;
		1449	$self->fix_auto_apply;
		1450	$self->update_buttons;
		1451	Coro::cede;
		1452	$self->set_darkness_map;
		1453	$self->difficulty ($self->estimate_difficulty)
		1454	unless $self->difficulty;
		1455	Coro::cede;
		1456	$self->activate;
		1457	}
		1458
		1459	$self->post_load;
		1460
		1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
819	my ($map) = @_;	1475	my ($map) = @_;
820		1476
821	my $path = $map->tmpname;	1477	my @diag; # diagonal neighbours
822	defined $path or return;
823		1478
824	unlink "$path.pst";	1479	for (0 .. 3) {
825	};	1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
826		1485
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
828		1489
829	#############################################################################	1490	for (@diag) {
830	# load/save perl data associated with player->ob objects	1491	my $neigh = find @$_
831		1492	or next;
832	sub all_objects(@) {	1493	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1494	}
834	}	1495	}
835		1496
836	# TODO: compatibility cruft, remove when no longer needed	1497	sub find_sync {
837	cf::player->attach (	1498	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1499
841	for my $o (all_objects $pl->ob) {	1500	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1501	}
843	$o->set_ob_key_value ("_perl_data");
844		1502
845	%$o = %{ Storable::thaw pack "H*", $value };	1503	sub do_load_sync {
		1504	my ($map) = @_;
		1505
		1506	cf::sync_job { $map->load };
		1507	}
		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
846	}	1530	}
847	}	1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
		1539	sub save {
		1540	my ($self) = @_;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
		1544	$self->{last_save} = $cf::RUNTIME;
		1545
		1546	return unless $self->dirty;
		1547
		1548	my $save = $self->save_path; utf8::encode $save;
		1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1550
		1551	$self->{load_path} = $save;
		1552
		1553	return if $self->{deny_save};
		1554
		1555	local $self->{last_access} = $self->last_access;#d#
		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
		1561	if ($uniq) {
		1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1564	} else {
		1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1566	}
849	);	1567	}
850		1568
851	#############################################################################	1569	sub swap_out {
		1570	my ($self) = @_;
852		1571
853	=head2 CORE EXTENSIONS	1572	# save first because save cedes
		1573	$self->save;
854		1574
855	Functions and methods that extend core crossfire objects.	1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1576
857	=head3 cf::player	1577	return if $self->players;
		1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1579	return if $self->{deny_save};
		1580
		1581	$self->clear;
		1582	$self->in_memory (cf::MAP_SWAPPED);
		1583	}
		1584
		1585	sub reset_at {
		1586	my ($self) = @_;
		1587
		1588	# TODO: safety, remove and allow resettable per-player maps
		1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1590	return 1e99 if $self->{deny_reset};
		1591
		1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1594
		1595	$time + $to
		1596	}
		1597
		1598	sub should_reset {
		1599	my ($self) = @_;
		1600
		1601	$self->reset_at <= $cf::RUNTIME
		1602	}
		1603
		1604	sub reset {
		1605	my ($self) = @_;
		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
		1609	return if $self->players;
		1610	return if $self->isa ("ext::map_per_player");#d#
		1611
		1612	warn "resetting map ", $self->path;#d#
		1613
		1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
		1618
		1619	$_->clear_links_to ($self) for values %cf::MAP;
		1620
		1621	$self->unlink_save;
		1622	$self->destroy;
		1623	}
		1624
		1625	my $nuke_counter = "aaaa";
		1626
		1627	sub nuke {
		1628	my ($self) = @_;
		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
		1636	$self->{deny_save} = 1;
		1637	$self->reset_timeout (1);
		1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
		1642	$self->reset; # polite request, might not happen
		1643	}
		1644
		1645	=item cf::map::unique_maps
		1646
		1647	Returns an arrayref of paths of all shared maps that have
		1648	instantiated unique items. May block.
		1649
		1650	=cut
		1651
		1652	sub unique_maps() {
		1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
		1655
		1656	my @paths;
		1657
		1658	for (@$files) {
		1659	utf8::decode $_;
		1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
		1664	}
		1665
		1666	\@paths
		1667	}
		1668
		1669	package cf;
		1670
		1671	=back
		1672
		1673	=head3 cf::object
		1674
		1675	=cut
		1676
		1677	package cf::object;
858		1678
859	=over 4	1679	=over 4
860		1680
861	=item cf::player::exists $login	1681	=item $ob->inv_recursive
862		1682
863	Returns true when the given account exists.	1683	Returns the inventory of the object _and_ their inventories, recursively.
864		1684
865	=cut	1685	=cut
866		1686
867	sub cf::player::exists($) {	1687	sub inv_recursive_;
868	cf::player::find $_[0]	1688	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1689	map { $_, inv_recursive_ $_->inv } @_
870	}	1690	}
871		1691
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1692	sub inv_recursive {
873		1693	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	}	1694	}
		1695
		1696	package cf;
885		1697
886	=back	1698	=back
887		1699
888	=head3 cf::object::player	1700	=head3 cf::object::player
889		1701
…		…
927	(ref $cf::CFG{"may_$access"}	1739	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1740	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1741	: $cf::CFG{"may_$access"})
930	}	1742	}
931		1743
		1744	=item $player_object->enter_link
		1745
		1746	Freezes the player and moves him/her to a special map (C<{link}>).
		1747
		1748	The player should be reasonably safe there for short amounts of time. You
		1749	I<MUST> call C<leave_link> as soon as possible, though.
		1750
		1751	Will never block.
		1752
		1753	=item $player_object->leave_link ($map, $x, $y)
		1754
		1755	Moves the player out of the special C<{link}> map onto the specified
		1756	map. If the map is not valid (or omitted), the player will be moved back
		1757	to the location he/she was before the call to C<enter_link>, or, if that
		1758	fails, to the emergency map position.
		1759
		1760	Might block.
		1761
		1762	=cut
		1763
		1764	sub link_map {
		1765	unless ($LINK_MAP) {
		1766	$LINK_MAP = cf::map::find "{link}"
		1767	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1768	$LINK_MAP->load;
		1769	}
		1770
		1771	$LINK_MAP
		1772	}
		1773
		1774	sub cf::object::player::enter_link {
		1775	my ($self) = @_;
		1776
		1777	$self->deactivate_recursive;
		1778
		1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1780
		1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1782	if $self->map;
		1783
		1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1785	}
		1786
		1787	sub cf::object::player::leave_link {
		1788	my ($self, $map, $x, $y) = @_;
		1789
		1790	my $link_pos = delete $self->{_link_pos};
		1791
		1792	unless ($map) {
		1793	# restore original map position
		1794	($map, $x, $y) = @{ $link_pos || [] };
		1795	$map = cf::map::find $map;
		1796
		1797	unless ($map) {
		1798	($map, $x, $y) = @$EMERGENCY_POSITION;
		1799	$map = cf::map::find $map
		1800	or die "FATAL: cannot load emergency map\n";
		1801	}
		1802	}
		1803
		1804	($x, $y) = (-1, -1)
		1805	unless (defined $x) && (defined $y);
		1806
		1807	# use -1 or undef as default coordinates, not 0, 0
		1808	($x, $y) = ($map->enter_x, $map->enter_y)
		1809	if $x <=0 && $y <= 0;
		1810
		1811	$map->load;
		1812	$map->load_diag;
		1813
		1814	return unless $self->contr->active;
		1815	$self->activate_recursive;
		1816	$self->enter_map ($map, $x, $y);
		1817	}
		1818
		1819	cf::player->attach (
		1820	on_logout => sub {
		1821	my ($pl) = @_;
		1822
		1823	# abort map switching before logout
		1824	if ($pl->ob->{_link_pos}) {
		1825	cf::sync_job {
		1826	$pl->ob->leave_link
		1827	};
		1828	}
		1829	},
		1830	on_login => sub {
		1831	my ($pl) = @_;
		1832
		1833	# try to abort aborted map switching on player login :)
		1834	# should happen only on crashes
		1835	if ($pl->ob->{_link_pos}) {
		1836	$pl->ob->enter_link;
		1837	(async {
		1838	# we need this sleep as the login has a concurrent enter_exit running
		1839	# and this sleep increases chances of the player not ending up in scorn
		1840	$pl->ob->reply (undef,
		1841	"There was an internal problem at your last logout, "
		1842	. "the server will try to bring you to your intended destination in a second.",
		1843	cf::NDI_RED);
		1844	Coro::Timer::sleep 1;
		1845	$pl->ob->leave_link;
		1846	})->prio (2);
		1847	}
		1848	},
		1849	);
		1850
		1851	=item $player_object->goto ($path, $x, $y)
		1852
		1853	=cut
		1854
		1855	sub cf::object::player::goto {
		1856	my ($self, $path, $x, $y) = @_;
		1857
		1858	$self->enter_link;
		1859
		1860	(async {
		1861	my $map = eval {
		1862	my $map = cf::map::find $path;
		1863	$map = $map->customise_for ($self) if $map;
		1864	$map
		1865	} or
		1866	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1867
		1868	$self->leave_link ($map, $x, $y);
		1869	})->prio (1);
		1870	}
		1871
		1872	=item $player_object->enter_exit ($exit_object)
		1873
		1874	=cut
		1875
		1876	sub parse_random_map_params {
		1877	my ($spec) = @_;
		1878
		1879	my $rmp = { # defaults
		1880	xsize => (cf::rndm 15, 40),
		1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
		1884	};
		1885
		1886	for (split /\n/, $spec) {
		1887	my ($k, $v) = split /\s+/, $_, 2;
		1888
		1889	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1890	}
		1891
		1892	$rmp
		1893	}
		1894
		1895	sub prepare_random_map {
		1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1899
		1900	# all this does is basically replace the /! path by
		1901	# a new random map path (?random/...) with a seed
		1902	# that depends on the exit object
		1903
		1904	my $rmp = parse_random_map_params $exit->msg;
		1905
		1906	if ($exit->map) {
		1907	$rmp->{region} = $exit->region->name;
		1908	$rmp->{origin_map} = $exit->map->path;
		1909	$rmp->{origin_x} = $exit->x;
		1910	$rmp->{origin_y} = $exit->y;
		1911	}
		1912
		1913	$rmp->{random_seed} ||= $exit->random_seed;
		1914
		1915	my $data = cf::to_json $rmp;
		1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1918
		1919	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1920	aio_write $fh, 0, (length $data), $data, 0;
		1921	undef $fh;
		1922	aio_rename "$meta~", $meta;
		1923
		1924	$exit->slaying ("?random/$md5");
		1925	$exit->msg (undef);
		1926	}
		1927	}
		1928
		1929	sub cf::object::player::enter_exit {
		1930	my ($self, $exit) = @_;
		1931
		1932	return unless $self->type == cf::PLAYER;
		1933
		1934	if ($exit->slaying eq "/!") {
		1935	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1936	cf::sync_job { prepare_random_map $exit };
		1937	}
		1938
		1939	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1940	my $hp = $exit->stats->hp;
		1941	my $sp = $exit->stats->sp;
		1942
		1943	$self->enter_link;
		1944
		1945	(async {
		1946	$self->deactivate_recursive; # just to be sure
		1947	unless (eval {
		1948	$self->goto ($slaying, $hp, $sp);
		1949
		1950	1;
		1951	}) {
		1952	$self->message ("Something went wrong deep within the crossfire server. "
		1953	. "I'll try to bring you back to the map you were before. "
		1954	. "Please report this to the dungeon master!",
		1955	cf::NDI_UNIQUE | cf::NDI_RED);
		1956
		1957	warn "ERROR in enter_exit: $@";
		1958	$self->leave_link;
		1959	}
		1960	})->prio (1);
		1961	}
		1962
932	=head3 cf::client	1963	=head3 cf::client
933		1964
934	=over 4	1965	=over 4
935		1966
936	=item $client->send_drawinfo ($text, $flags)	1967	=item $client->send_drawinfo ($text, $flags)
…		…
979	on_reply => sub {	2010	on_reply => sub {
980	my ($ns, $msg) = @_;	2011	my ($ns, $msg) = @_;
981		2012
982	# this weird shuffling is so that direct followup queries	2013	# this weird shuffling is so that direct followup queries
983	# get handled first	2014	# get handled first
984	my $queue = delete $ns->{query_queue};	2015	my $queue = delete $ns->{query_queue}
		2016	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2017
986	(shift @$queue)->[1]->($msg);	2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2020
988	push @{ $ns->{query_queue} }, @$queue;	2021	push @{ $ns->{query_queue} }, @$queue;
989		2022
990	if (@{ $ns->{query_queue} } == @$queue) {	2023	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2024	if (@$queue) {
…		…
995	}	2028	}
996	}	2029	}
997	},	2030	},
998	);	2031	);
999		2032
1000	=item $client->coro (\&cb)	2033	=item $client->async (\&cb)
1001		2034
1002	Create a new coroutine, running the specified callback. The coroutine will	2035	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2036	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2037	or loss of connection).
1005		2038
1006	=cut	2039	=cut
1007		2040
1008	sub cf::client::coro {	2041	sub cf::client::async {
1009	my ($self, $cb) = @_;	2042	my ($self, $cb) = @_;
1010		2043
1011	my $coro; $coro = async {	2044	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2045
1018	$coro->on_destroy (sub {	2046	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2047	delete $self->{_coro}{$coro+0};
1020	});	2048	});
1021		2049
…		…
1157	The parameter C<$family> should best start with the name of the extension	2185	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2186	using it, it should be unique.
1159		2187
1160	=over 4	2188	=over 4
1161		2189
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	2190	=item $value = cf::db_get $family => $key
1169		2191
1170	Returns a single value from the database	2192	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		2193
1177	=item cf::db_put $family => $key => $value	2194	=item cf::db_put $family => $key => $value
1178		2195
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2196	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		2197
1190	=cut	2198	=cut
1191		2199
1192	our $DB;	2200	our $DB;
1193		2201
1194	{	2202	unless ($DB) {
		2203	$DB = BDB::db_create $DB_ENV;
		2204
		2205	cf::sync_job {
		2206	eval {
		2207	$DB->set_flags (BDB::CHKSUM);
		2208
		2209	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2210	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2211	cf::cleanup "db_open(db): $!" if $!;
		2212	};
		2213	cf::cleanup "db_open(db): $@" if $@;
		2214	};
		2215
1195	my $path = cf::localdir . "/database.pst";	2216	my $path = cf::localdir . "/database.pst";
		2217	if (stat $path) {
		2218	cf::sync_job {
		2219	my $pst = Storable::retrieve $path;
1196		2220
1197	sub db_load() {	2221	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2222	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2223	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2224	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2225
1202	my $pid;	2226	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	}	2227	};
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	});	2228	}
		2229	}
1225		2230
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {	2231	sub db_get($$) {
1232	@_ >= 2	2232	my $key = "$_[0]/$_[1]";
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236		2233
		2234	cf::sync_job {
		2235	BDB::db_get $DB, undef, $key, my $data;
		2236
		2237	$! ? ()
		2238	: Compress::LZF::sthaw $data
		2239	}
		2240	}
		2241
1237	sub db_put($$;$) {	2242	sub db_put($$$) {
1238	if (@_ >= 3) {	2243	BDB::dbreq_pri 4;
1239	$DB->{$_[0]}{$_[1]} = $_[2];	2244	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
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	},
1251	);
1252	}	2245	}
1253		2246
1254	#############################################################################	2247	#############################################################################
1255	# the server's main()	2248	# the server's init and main functions
		2249
		2250	sub load_resources {
		2251	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2252	or die "unable to load regions file\n";#d#
		2253	}
1256		2254
1257	sub cfg_load {	2255	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2256	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2257	or return;
1260		2258
1261	local $/;	2259	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2260	*CFG = YAML::Syck::Load <$fh>;
		2261
		2262	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2263
		2264	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2265	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2266
		2267	if (exists $CFG{mlockall}) {
		2268	eval {
		2269	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2270	and die "WARNING: m(un)lockall failed: $!\n";
		2271	};
		2272	warn $@ if $@;
		2273	}
		2274	}
		2275
		2276	sub init {
		2277	load_resources;
1263	}	2278	}
1264		2279
1265	sub main {	2280	sub main {
		2281	# we must not ever block the main coroutine
		2282	local $Coro::idle = sub {
		2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2284	(async {
		2285	Event::one_event;
		2286	})->prio (Coro::PRIO_MAX);
		2287	};
		2288
1266	cfg_load;	2289	cfg_load;
1267	db_load;
1268	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1269	Event::loop;	2293	Event::loop;
1270	}	2294	}
1271		2295
1272	#############################################################################	2296	#############################################################################
1273	# initialisation	2297	# initialisation and cleanup
1274		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
1275	sub _perl_reload() {	2347	sub reload() {
		2348	# can/must only be called in main
		2349	if ($Coro::current != $Coro::main) {
		2350	warn "can only reload from main coroutine";
		2351	return;
		2352	}
		2353
1276	warn "reloading...";	2354	warn "reloading...";
1277		2355
		2356	warn "cancelling server ticker";
		2357	$TICK_WATCHER->cancel;
		2358
		2359	cf::emergency_save;
		2360
1278	eval {	2361	eval {
1279	local $FREEZE = 1;	2362	# if anything goes wrong in here, we should simply crash as we already saved
1280		2363
1281	cf::emergency_save;	2364	warn "cancelling all WF_AUTOCANCEL watchers";
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {	2365	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2366	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2367	}
1287		2368
		2369	warn "syncing database to disk";
		2370	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2371
		2372	warn "flushing outstanding aio requests";
		2373	for (;;) {
		2374	BDB::flush;
		2375	IO::AIO::flush;
		2376	Coro::cede;
		2377	last unless IO::AIO::nreqs || BDB::nreqs;
		2378	warn "iterate...";
		2379	}
		2380
1288	# cancel all extension coros	2381	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2382	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2383	%EXT_CORO = ();
1291		2384
1292	# unload all extensions	2385	warn "removing commands";
1293	for (@exts) {	2386	%COMMAND = ();
		2387
		2388	warn "removing ext commands";
		2389	%EXTCMD = ();
		2390
		2391	warn "unloading/nuking all extensions";
		2392	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2393	warn "... unloading $pkg";
1295	unload_extension $_;	2394
		2395	if (my $cb = $pkg->can ("unload")) {
		2396	eval {
		2397	$cb->($pkg);
		2398	1
		2399	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2400	}
1297		2401
		2402	warn "... nuking $pkg";
		2403	Symbol::delete_package $pkg;
		2404	}
		2405
1298	# unload all modules loaded from $LIBDIR	2406	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2407	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2408	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2409
1302	warn "removing <$k>";	2410	warn "... unloading $k";
1303	delete $INC{$k};	2411	delete $INC{$k};
1304		2412
1305	$k =~ s/\.pm$//;	2413	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2414	$k =~ s/\//::/g;
1307		2415
…		…
1310	}	2418	}
1311		2419
1312	Symbol::delete_package $k;	2420	Symbol::delete_package $k;
1313	}	2421	}
1314		2422
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2423	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2424	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2425	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2426
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2427	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2428	delete $INC{"cf.pm"};
1328		2429
1329	# don't, removes xs symbols, too,	2430	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2431	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2432	#Symbol::delete_package __PACKAGE__;
1332		2433
1333	# reload cf.pm	2434	warn "unload completed, starting to reload now";
		2435
1334	warn "reloading cf.pm";	2436	warn "reloading cf.pm";
1335	require cf;	2437	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2438	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2439
1338	# load config and database again	2440	warn "loading config and database again";
1339	cf::cfg_load;	2441	cf::cfg_load;
1340	cf::db_load;
1341		2442
1342	# load extensions
1343	warn "load extensions";	2443	warn "loading extensions";
1344	cf::load_extensions;	2444	cf::load_extensions;
1345		2445
1346	# reattach attachments to objects	2446	warn "reattaching attachments to objects/players";
1347	warn "reattach";
1348	_global_reattach;	2447	_global_reattach;
		2448	warn "reattaching attachments to maps";
		2449	reattach $_ for values %MAP;
		2450
		2451	warn "loading reloadable resources";
		2452	load_resources;
		2453
		2454	warn "restarting server ticker";
		2455
		2456	$TICK_WATCHER->start;
1349	};	2457	};
1350	warn $@ if $@;	2458
		2459	if ($@) {
		2460	warn $@;
		2461	warn "error while reloading, exiting.";
		2462	exit 1;
		2463	}
1351		2464
1352	warn "reloaded";	2465	warn "reloaded";
1353	};	2466	};
1354		2467
1355	sub perl_reload() {	2468	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2469
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2470	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2471	my ($who, $arg) = @_;
1363		2472
1364	if ($who->flag (FLAG_WIZ)) {	2473	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2474	$who->message ("reloading server.");
1366	_perl_reload;	2475
		2476	# doing reload synchronously and two reloads happen back-to-back,
		2477	# coro crashes during coro_state_free->destroy here.
		2478
		2479	$RELOAD_WATCHER ||= Event->timer (
		2480	reentrant => 0,
		2481	after => 0,
		2482	data => WF_AUTOCANCEL,
		2483	cb => sub {
		2484	reload;
		2485	undef $RELOAD_WATCHER;
		2486	},
		2487	);
1367	}	2488	}
1368	};	2489	};
1369		2490
1370	unshift @INC, $LIBDIR;	2491	unshift @INC, $LIBDIR;
		2492
		2493	my $bug_warning = 0;
1371		2494
1372	$TICK_WATCHER = Event->timer (	2495	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2496	reentrant => 0,
		2497	parked => 1,
1374	prio => 0,	2498	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2499	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2500	data => WF_AUTOCANCEL,
1377	cb => sub {	2501	cb => sub {
1378	unless ($FREEZE) {	2502	if ($Coro::current != $Coro::main) {
		2503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2504	unless ++$bug_warning > 10;
		2505	return;
		2506	}
		2507
		2508	$NOW = Event::time;
		2509
1379	cf::server_tick; # one server iteration	2510	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2511	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2512	$NEXT_TICK += $TICK;
		2513
		2514	$WAIT_FOR_TICK->broadcast;
		2515	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2516
		2517	Event::sweep;
		2518	Coro::cede_notself;
		2519
		2520	# my $AFTER = Event::time;
		2521	# warn $AFTER - $NOW;#d#
1384		2522
1385	# if we are delayed by four ticks or more, skip them all	2523	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2524	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2525
1388	$TICK_WATCHER->at ($NEXT_TICK);	2526	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2527	$TICK_WATCHER->start;
1390	},	2528	},
1391	);	2529	);
1392		2530
		2531	{
		2532	BDB::max_poll_time $TICK * 0.1;
		2533	$BDB_POLL_WATCHER = Event->io (
		2534	reentrant => 0,
		2535	fd => BDB::poll_fileno,
		2536	poll => 'r',
		2537	prio => 0,
		2538	data => WF_AUTOCANCEL,
		2539	cb => \&BDB::poll_cb,
		2540	);
		2541	BDB::min_parallel 8;
		2542
		2543	BDB::set_sync_prepare {
		2544	my $status;
		2545	my $current = $Coro::current;
		2546	(
		2547	sub {
		2548	$status = $!;
		2549	$current->ready; undef $current;
		2550	},
		2551	sub {
		2552	Coro::schedule while defined $current;
		2553	$! = $status;
		2554	},
		2555	)
		2556	};
		2557
		2558	unless ($DB_ENV) {
		2559	$DB_ENV = BDB::db_env_create;
		2560
		2561	cf::sync_job {
		2562	eval {
		2563	BDB::db_env_open
		2564	$DB_ENV,
		2565	$BDB_ENV_DIR,
		2566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2568	0666;
		2569
		2570	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2571
		2572	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2573	$DB_ENV->set_lk_detect;
		2574	};
		2575
		2576	cf::cleanup "db_env_open(db): $@" if $@;
		2577	};
		2578	}
		2579	}
		2580
		2581	{
		2582	IO::AIO::min_parallel 8;
		2583
		2584	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2585	IO::AIO::max_poll_time $TICK * 0.1;
1394		2586	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2587	reentrant => 0,
		2588	fd => IO::AIO::poll_fileno,
1396	poll => 'r',	2589	poll => 'r',
1397	prio => 5,	2590	prio => 6,
1398	data => WF_AUTOCANCEL,	2591	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);	2592	cb => \&IO::AIO::poll_cb,
		2593	);
		2594	}
1400		2595
1401	# we must not ever block the main coroutine	2596	$WRITE_RUNTIME_WATCHER = Event->timer (
1402	$Coro::idle = sub {	2597	reentrant => 0,
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2598	data => WF_AUTOCANCEL,
1404	warn "FATAL: Coro::idle was called, major BUG\n";	2599	after => 1,
		2600	interval => 10,
		2601	prio => 6, # keep it lowest so it acts like a watchdog
1405	(Coro::unblock_sub {	2602	cb => Coro::unblock_sub {
1406	Event::one_event;	2603	write_runtime
1407	})->();	2604	or warn "ERROR: unable to write runtime file: $!";
1408	};	2605	},
		2606	);
		2607
		2608	END { cf::emergency_save }
1409		2609
1410	1	2610	1
1411		2611

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