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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.104 by root, Sat Dec 30 16:56:16 2006 UTC vs.
Revision 1.231 by root, Wed Apr 4 00:02:06 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
		20	use Coro::AIO;
18		21
19	use IO::AIO 2.3;	22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
		25	use Fcntl;
20	use YAML::Syck ();	26	use YAML::Syck ();
		27	use IO::AIO 2.32 ();
21	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
22		30
		31	# configure various modules to our taste
		32	#
		33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		35
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	36	$Event::Eval = 1; # no idea why this is required, but it is
24		37
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	39	$YAML::Syck::ImplicitUnicode = 1;
27		40
28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		42
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		44
32	our %COMMAND = ();	45	our %COMMAND = ();
33	our %COMMAND_TIME = ();	46	our %COMMAND_TIME = ();
		47
		48	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	49	our %EXTCMD = ();
		50	our %EXT_CORO = (); # coroutines bound to extensions
		51	our %EXT_MAP = (); # pluggable maps
35		52
		53	our $RELOAD; # number of reloads so far
36	our @EVENT;	54	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	55	our $LIBDIR = datadir . "/ext";
38		56
39	our $TICK = MAX_TIME * 1e-6;	57	our $TICK = MAX_TIME * 1e-6;
40	our $TICK_WATCHER;	58	our $TICK_WATCHER;
		59	our $AIO_POLL_WATCHER;
		60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	61	our $NEXT_TICK;
42	our $NOW;	62	our $NOW;
		63	our $USE_FSYNC = 1; # use fsync to write maps - default off
		64
		65	our $BDB_POLL_WATCHER;
		66	our $DB_ENV;
43		67
44	our %CFG;	68	our %CFG;
45		69
46	our $UPTIME; $UPTIME ||= time;	70	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	71	our $RUNTIME;
48		72
		73	our %PLAYER; # all users
49	our %MAP; # all maps	74	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	75	our $LINK_MAP; # the special {link} map, which is always available
51	our $FREEZE;	76	our $RANDOM_MAPS = cf::localdir . "/random";
		77	our $BDB_ENV_DIR = cf::localdir . "/db";
		78
		79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		81
		82	# used to convert map paths into valid unix filenames by replacing / by ∕
		83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		84
53	binmode STDOUT;	85	binmode STDOUT;
54	binmode STDERR;	86	binmode STDERR;
55		87
56	# read virtual server time, if available	88	# read virtual server time, if available
…		…
62		94
63	mkdir cf::localdir;	95	mkdir cf::localdir;
64	mkdir cf::localdir . "/" . cf::playerdir;	96	mkdir cf::localdir . "/" . cf::playerdir;
65	mkdir cf::localdir . "/" . cf::tmpdir;	97	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;	98	mkdir cf::localdir . "/" . cf::uniquedir;
		99	mkdir $RANDOM_MAPS;
		100	mkdir $BDB_ENV_DIR;
67		101
68	our %EXT_CORO;	102	our $EMERGENCY_POSITION;
		103
		104	sub cf::map::normalise;
69		105
70	#############################################################################	106	#############################################################################
71		107
72	=head2 GLOBAL VARIABLES	108	=head2 GLOBAL VARIABLES
73		109
…		…
97		133
98	=item %cf::CFG	134	=item %cf::CFG
99		135
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	136	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	from wherever your confdir points to.	137	from wherever your confdir points to.
		138
		139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		140
		141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		143	processing has been done. Call C<< ->wait >> on them to maximise the
		144	window of cpu time available, or simply to synchronise to the server tick.
102		145
103	=back	146	=back
104		147
105	=cut	148	=cut
106		149
…		…
110	utf8::encode $msg;	153	utf8::encode $msg;
111		154
112	$msg .= "\n"	155	$msg .= "\n"
113	unless $msg =~ /\n$/;	156	unless $msg =~ /\n$/;
114		157
115	LOG llevError, "cfperl: $msg";	158	LOG llevError, $msg;
116	};	159	};
117	}	160	}
118		161
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
138		181
139	$Event::DIED = sub {	182	$Event::DIED = sub {
140	warn "error in event callback: @_";	183	warn "error in event callback: @_";
141	};	184	};
142		185
143	my %ext_pkg;
144	my @exts;
145	my @hook;
146
147	=head2 UTILITY FUNCTIONS	186	=head2 UTILITY FUNCTIONS
148		187
149	=over 4	188	=over 4
150		189
151	=cut	190	=item dumpval $ref
152		191
		192	=cut
		193
		194	sub dumpval {
		195	eval {
		196	local $SIG{__DIE__};
		197	my $d;
		198	if (1) {
		199	$d = new Data::Dumper([$_[0]], ["*var"]);
		200	$d->Terse(1);
		201	$d->Indent(2);
		202	$d->Quotekeys(0);
		203	$d->Useqq(1);
		204	#$d->Bless(...);
		205	$d->Seen($_[1]) if @_ > 1;
		206	$d = $d->Dump();
		207	}
		208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		209	$d
		210	} || "[unable to dump $_[0]: '$@']";
		211	}
		212
153	use JSON::Syck (); # TODO# replace by JSON::PC once working	213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
154		214
155	=item $ref = cf::from_json $json	215	=item $ref = cf::from_json $json
156		216
157	Converts a JSON string into the corresponding perl data structure.	217	Converts a JSON string into the corresponding perl data structure.
158		218
159	=cut
160
161	sub from_json($) {
162	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
163	JSON::Syck::Load $_[0]
164	}
165
166	=item $json = cf::to_json $ref	219	=item $json = cf::to_json $ref
167		220
168	Converts a perl data structure into its JSON representation.	221	Converts a perl data structure into its JSON representation.
169		222
170	=cut	223	=item cf::lock_wait $string
171		224
172	sub to_json($) {	225	Wait until the given lock is available. See cf::lock_acquire.
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]
175	}
176		226
		227	=item my $lock = cf::lock_acquire $string
		228
		229	Wait until the given lock is available and then acquires it and returns
		230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		231	for example when the coroutine gets canceled), the lock is automatically
		232	returned.
		233
		234	Lock names should begin with a unique identifier (for example, cf::map::find
		235	uses map_find and cf::map::load uses map_load).
		236
		237	=cut
		238
		239	our %LOCK;
		240
		241	sub lock_wait($) {
		242	my ($key) = @_;
		243
		244	# wait for lock, if any
		245	while ($LOCK{$key}) {
		246	push @{ $LOCK{$key} }, $Coro::current;
		247	Coro::schedule;
		248	}
		249	}
		250
		251	sub lock_acquire($) {
		252	my ($key) = @_;
		253
		254	# wait, to be sure we are not locked
		255	lock_wait $key;
		256
		257	$LOCK{$key} = [];
		258
		259	Coro::guard {
		260	# wake up all waiters, to be on the safe side
		261	$_->ready for @{ delete $LOCK{$key} };
		262	}
		263	}
		264
		265	sub freeze_mainloop {
		266	return unless $TICK_WATCHER->is_active;
		267
		268	my $guard = Coro::guard {
		269	$TICK_WATCHER->start;
		270	};
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
		298	sub sync_job(&) {
		299	my ($job) = @_;
		300
		301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
		316	})->prio (Coro::PRIO_MAX);
		317
		318	while ($busy) {
		319	Coro::cede or Event::one_event;
		320	}
		321
		322	wantarray ? @res : $res[0]
		323	} else {
		324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
		327	}
		328	}
		329
177	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
178		331
179	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
181		334
182	=cut	335	=cut
183		336
184	sub coro(&) {	337	sub async_ext(&) {
185	my $cb = shift;	338	my $cb = shift;
186		339
187	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		341
194	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
196	});	344	});
197	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
198		346
199	$coro	347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $guard = cf::lock_acquire "write_runtime";
		352
		353	my $runtime = cf::localdir . "/runtime";
		354
		355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		356	or return;
		357
		358	my $value = $cf::RUNTIME + 90 + 10;
		359	# 10 is the runtime save interval, for a monotonic clock
		360	# 60 allows for the watchdog to kill the server.
		361
		362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		363	and return;
		364
		365	# always fsync - this file is important
		366	aio_fsync $fh
		367	and return;
		368
		369	close $fh
		370	or return;
		371
		372	aio_rename "$runtime~", $runtime
		373	and return;
		374
		375	1
		376	}
		377
		378	=item cf::datalog type => key => value, ...
		379
		380	Log a datalog packet of the given type with the given key-value pairs.
		381
		382	=cut
		383
		384	sub datalog($@) {
		385	my ($type, %kv) = @_;
		386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
200	}	387	}
201		388
202	=back	389	=back
203		390
204	=cut	391	=cut
…		…
335	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
336	our @CB_MAP = ();	523	our @CB_MAP = ();
337		524
338	my %attachment;	525	my %attachment;
339		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
340	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
341	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
342		535
343	use sort 'stable';	536	use sort 'stable';
344		537
…		…
515	# object support	708	# object support
516		709
517	sub reattach {	710	sub reattach {
518	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
519	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
520		715
521	my $registry = $obj->registry;	716	my $registry = $obj->registry;
522		717
523	@$registry = ();	718	@$registry = ();
524		719
…		…
563	);	758	);
564		759
565	sub object_freezer_save {	760	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	761	my ($filename, $rdata, $objs) = @_;
567		762
		763	sync_job {
568	if (length $$rdata) {	764	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	765	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
571		767
572	if (open my $fh, ">:raw", "$filename~") {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		771	aio_fsync $fh if $cf::USE_FSYNC;
580	close $fh;	772	close $fh;
		773
		774	if (@$objs) {
		775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		776	chmod SAVE_MODE, $fh;
		777	my $data = Storable::nfreeze { version => 1, objs => $objs };
		778	aio_write $fh, 0, (length $data), $data, 0;
		779	aio_fsync $fh if $cf::USE_FSYNC;
		780	close $fh;
581	rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
		782	}
		783	} else {
		784	aio_unlink "$filename.pst";
		785	}
		786
		787	aio_rename "$filename~", $filename;
582	} else {	788	} else {
583	unlink "$filename.pst";	789	warn "FATAL: $filename~: $!\n";
584	}	790	}
585
586	rename "$filename~", $filename;
587	} else {	791	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	792	aio_unlink $filename;
592	unlink "$filename.pst";	793	aio_unlink "$filename.pst";
		794	}
593	}	795	}
594	}	796	}
595		797
596	sub object_freezer_as_string {	798	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
602	}	804	}
603		805
604	sub object_thawer_load {	806	sub object_thawer_load {
605	my ($filename) = @_;	807	my ($filename) = @_;
606		808
607	local $/;	809	my ($data, $av);
608		810
609	my $av;	811	(aio_load $filename, $data) >= 0
		812	or return;
610		813
611	#TODO: use sysread etc.	814	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	815	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	816	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
616	}	818	}
		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
617	return ($data, $av);	822	return ($data, $av);
618	}
619
620	()
621	}	823	}
622		824
623	#############################################################################	825	#############################################################################
624	# command handling &c	826	# command handling &c
625		827
…		…
649	=cut	851	=cut
650		852
651	sub register_extcmd {	853	sub register_extcmd {
652	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
653		855
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
658	}	857	}
659		858
660	cf::player->attach (	859	cf::player->attach (
661	on_command => sub {	860	on_command => sub {
662	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
675		874
676	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
677		876
678	if (ref $msg) {	877	if (ref $msg) {
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
681	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
682	}	881	}
683	}	882	}
684	} else {	883	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
687		886
688	cf::override;	887	cf::override;
689	},	888	},
690	);	889	);
691		890
692	sub register {
693	my ($base, $pkg) = @_;
694
695	#TODO
696	}
697
698	sub load_extension {	891	sub load_extension {
699	my ($path) = @_;	892	my ($path) = @_;
700		893
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
702	my $base = $1;	895	my $base = $1;
703	my $pkg = $1;	896	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
706		899
707	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
708		901
709	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
710	or die "$path: $!";	903	or die "$path: $!";
711		904
712	my $source =	905	my $source =
713	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
714	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
715	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
716	. "\n};\n1";	909	. "\n};\n1";
717		910
718	eval $source	911	unless (eval $source) {
719	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
720	: "extension disabled.\n";	913	: "extension disabled.\n";
721		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
722	push @exts, $pkg;	915	warn $@;
723	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
724		917	exit 1;
725	# no strict 'refs';	918	}
726	# @{"$pkg\::ISA"} = ext::;	919	die $@;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }	920	}
741		921
742	# remove commands	922	push @EXTS, $pkg;
743	for my $name (keys %COMMAND) {
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
745
746	if (@cb) {
747	$COMMAND{$name} = \@cb;
748	} else {
749	delete $COMMAND{$name};
750	}
751	}
752
753	# remove extcmds
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
755	delete $EXTCMD{$name};
756	}
757
758	if (my $cb = $pkg->can ("unload")) {
759	eval {
760	$cb->($pkg);
761	1
762	} or warn "$pkg unloaded, but with errors: $@";
763	}
764
765	Symbol::delete_package $pkg;
766	}	923	}
767		924
768	sub load_extensions {	925	sub load_extensions {
769	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
770	next unless -r $ext;	927	next unless -r $ext;
…		…
774	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
775	}	932	}
776	}	933	}
777		934
778	#############################################################################	935	#############################################################################
779	# load/save/clean perl data associated with a map
780		936
781	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$login.pl"
		969	}
		970
		971	sub find_active($) {
		972	$cf::PLAYER{$_[0]}
		973	and $cf::PLAYER{$_[0]}->active
		974	and $cf::PLAYER{$_[0]}
		975	}
		976
		977	sub exists($) {
		978	my ($login) = @_;
		979
		980	$cf::PLAYER{$login}
		981	or cf::sync_job { !aio_stat path $login }
		982	}
		983
		984	sub find($) {
		985	return $cf::PLAYER{$_[0]} || do {
		986	my $login = $_[0];
		987
		988	my $guard = cf::lock_acquire "user_find:$login";
		989
		990	$cf::PLAYER{$_[0]} || do {
		991	my $pl = load_pl path $login
		992	or return;
		993	$cf::PLAYER{$login} = $pl
		994	}
		995	}
		996	}
		997
		998	sub save($) {
		999	my ($pl) = @_;
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	my $path = path $pl;
		1004	my $guard = cf::lock_acquire "user_save:$path";
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	aio_mkdir playerdir $pl, 0770;
		1009	$pl->{last_save} = $cf::RUNTIME;
		1010
		1011	$pl->save_pl ($path);
		1012	Coro::cede;
		1013	}
		1014
		1015	sub new($) {
		1016	my ($login) = @_;
		1017
		1018	my $self = create;
		1019
		1020	$self->ob->name ($login);
		1021	$self->{deny_save} = 1;
		1022
		1023	$cf::PLAYER{$login} = $self;
		1024
		1025	$self
		1026	}
		1027
		1028	=item $pl->quit_character
		1029
		1030	Nukes the player without looking back. If logged in, the connection will
		1031	be destroyed. May block for a long time.
		1032
		1033	=cut
		1034
		1035	sub quit_character {
		1036	my ($pl) = @_;
		1037
		1038	my $name = $pl->ob->name;
		1039
		1040	$pl->{deny_save} = 1;
		1041	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1042
		1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1044	$pl->deactivate;
		1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1046	$pl->ns->destroy if $pl->ns;
		1047
		1048	my $path = playerdir $pl;
		1049	my $temp = "$path~$cf::RUNTIME~deleting~";
		1050	aio_rename $path, $temp;
		1051	delete $cf::PLAYER{$pl->ob->name};
		1052	$pl->destroy;
		1053
		1054	my $prefix = qr<^~\Q$name\E/>;
		1055
		1056	# nuke player maps
		1057	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1058
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item $pl->kick
		1063
		1064	Kicks a player out of the game. This destroys the connection.
		1065
		1066	=cut
		1067
		1068	sub kick {
		1069	my ($pl, $kicker) = @_;
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1072	$pl->killer ("kicked");
		1073	$pl->ns->destroy;
		1074	}
		1075
		1076	=item cf::player::list_logins
		1077
		1078	Returns am arrayref of all valid playernames in the system, can take a
		1079	while and may block, so not sync_job-capable, ever.
		1080
		1081	=cut
		1082
		1083	sub list_logins {
		1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1085	or return [];
		1086
		1087	my @logins;
		1088
		1089	for my $login (@$dirs) {
		1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1091	aio_read $fh, 0, 512, my $buf, 0 or next;
		1092	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1093
		1094	utf8::decode $login;
		1095	push @logins, $login;
		1096	}
		1097
		1098	\@logins
		1099	}
		1100
		1101	=item $player->maps
		1102
		1103	Returns an arrayref of map paths that are private for this
		1104	player. May block.
		1105
		1106	=cut
		1107
		1108	sub maps($) {
		1109	my ($pl) = @_;
		1110
		1111	$pl = ref $pl ? $pl->ob->name : $pl;
		1112
		1113	my $files = aio_readdir playerdir $pl
		1114	or return;
		1115
		1116	my @paths;
		1117
		1118	for (@$files) {
		1119	utf8::decode $_;
		1120	next if /\.(?:pl|pst)$/;
		1121	next unless /^$PATH_SEP/o;
		1122
		1123	push @paths, cf::map::normalise "~$pl/$_";
		1124	}
		1125
		1126	\@paths
		1127	}
		1128
		1129	=item $player->ext_reply ($msgid, %msg)
		1130
		1131	Sends an ext reply to the player.
		1132
		1133	=cut
		1134
		1135	sub ext_reply($$%) {
		1136	my ($self, $id, %msg) = @_;
		1137
		1138	$msg{msgid} = $id;
		1139
		1140	$self->send ("ext " . cf::to_json \%msg);
		1141	}
		1142
		1143	=item $player->ext_event ($type, %msg)
		1144
		1145	Sends an ext event to the client.
		1146
		1147	=cut
		1148
		1149	sub ext_event($$%) {
		1150	my ($self, $type, %msg) = @_;
		1151
		1152	delete $msg{msgid};
		1153	$msg{msgtype} = "event";
		1154	$msg{eventtype} = $type;
		1155
		1156	$self->send ("ext " . cf::to_json \%msg);
		1157	}
		1158
		1159	package cf;
		1160
		1161	=back
		1162
		1163
		1164	=head3 cf::map
		1165
		1166	=over 4
		1167
		1168	=cut
		1169
		1170	package cf::map;
		1171
		1172	use Fcntl;
		1173	use Coro::AIO;
		1174
		1175	use overload
		1176	'""' => \&as_string,
		1177	fallback => 1;
		1178
		1179	our $MAX_RESET = 3600;
		1180	our $DEFAULT_RESET = 3000;
		1181
		1182	sub generate_random_map {
		1183	my ($self, $rmp) = @_;
		1184	# mit "rum" bekleckern, nicht
		1185	$self->_create_random_map (
		1186	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1187	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1188	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1189	$rmp->{exit_on_final_map},
		1190	$rmp->{xsize}, $rmp->{ysize},
		1191	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1192	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1193	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1194	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1195	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1196	(cf::region::find $rmp->{region}), $rmp->{custom}
		1197	)
		1198	}
		1199
		1200	=item cf::map->register ($regex, $prio)
		1201
		1202	Register a handler for the map path matching the given regex at the
		1203	givne priority (higher is better, built-in handlers have priority 0, the
		1204	default).
		1205
		1206	=cut
		1207
		1208	sub register {
		1209	my (undef, $regex, $prio) = @_;
		1210	my $pkg = caller;
		1211
		1212	no strict;
		1213	push @{"$pkg\::ISA"}, __PACKAGE__;
		1214
		1215	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1216	}
		1217
		1218	# also paths starting with '/'
		1219	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1220
		1221	sub thawer_merge {
		1222	my ($self, $merge) = @_;
		1223
		1224	# we have to keep some variables in memory intact
		1225	local $self->{path};
		1226	local $self->{load_path};
		1227	local $self->{deny_save};
		1228	local $self->{deny_reset};
		1229
		1230	$self->SUPER::thawer_merge ($merge);
		1231	}
		1232
		1233	sub normalise {
		1234	my ($path, $base) = @_;
		1235
		1236	$path = "$path"; # make sure its a string
		1237
		1238	$path =~ s/\.map$//;
		1239
		1240	# map plan:
		1241	#
		1242	# /! non-realised random map exit (special hack!)
		1243	# {... are special paths that are not being touched
		1244	# ?xxx/... are special absolute paths
		1245	# ?random/... random maps
		1246	# /... normal maps
		1247	# ~user/... per-player map of a specific user
		1248
		1249	$path =~ s/$PATH_SEP/\//go;
		1250
		1251	# treat it as relative path if it starts with
		1252	# something that looks reasonable
		1253	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1254	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1255
		1256	$base =~ s{[^/]+/?$}{};
		1257	$path = "$base/$path";
		1258	}
		1259
		1260	for ($path) {
		1261	redo if s{//}{/};
		1262	redo if s{/\.?/}{/};
		1263	redo if s{/[^/]+/\.\./}{/};
		1264	}
		1265
		1266	$path
		1267	}
		1268
		1269	sub new_from_path {
		1270	my (undef, $path, $base) = @_;
		1271
		1272	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1273
		1274	$path = normalise $path, $base;
		1275
		1276	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1277	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1278	my $self = bless cf::map::new, $pkg;
		1279	$self->{path} = $path; $self->path ($path);
		1280	$self->init; # pass $1 etc.
		1281	return $self;
		1282	}
		1283	}
		1284
		1285	Carp::carp "unable to resolve path '$path' (base '$base').";
		1286	()
		1287	}
		1288
		1289	sub init {
		1290	my ($self) = @_;
		1291
		1292	$self
		1293	}
		1294
		1295	sub as_string {
		1296	my ($self) = @_;
		1297
		1298	"$self->{path}"
		1299	}
		1300
		1301	# the displayed name, this is a one way mapping
		1302	sub visible_name {
		1303	&as_string
		1304	}
		1305
		1306	# the original (read-only) location
		1307	sub load_path {
		1308	my ($self) = @_;
		1309
		1310	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1311	}
		1312
		1313	# the temporary/swap location
		1314	sub save_path {
		1315	my ($self) = @_;
		1316
		1317	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1318	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1319	}
		1320
		1321	# the unique path, undef == no special unique path
		1322	sub uniq_path {
		1323	my ($self) = @_;
		1324
		1325	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1326	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1327	}
		1328
		1329	# and all this just because we cannot iterate over
		1330	# all maps in C++...
		1331	sub change_all_map_light {
		1332	my ($change) = @_;
		1333
		1334	$_->change_map_light ($change)
		1335	for grep $_->outdoor, values %cf::MAP;
		1336	}
		1337
		1338	sub unlink_save {
		1339	my ($self) = @_;
		1340
		1341	utf8::encode (my $save = $self->save_path);
		1342	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1343	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1344	}
		1345
		1346	sub load_header_from($) {
		1347	my ($self, $path) = @_;
		1348
		1349	utf8::encode $path;
		1350	#aio_open $path, O_RDONLY, 0
		1351	# or return;
		1352
		1353	$self->_load_header ($path)
		1354	or return;
		1355
		1356	$self->{load_path} = $path;
		1357
		1358	1
		1359	}
		1360
		1361	sub load_header_orig {
		1362	my ($self) = @_;
		1363
		1364	$self->load_header_from ($self->load_path)
		1365	}
		1366
		1367	sub load_header_temp {
		1368	my ($self) = @_;
		1369
		1370	$self->load_header_from ($self->save_path)
		1371	}
		1372
		1373	sub prepare_temp {
		1374	my ($self) = @_;
		1375
		1376	$self->last_access ((delete $self->{last_access})
		1377	|| $cf::RUNTIME); #d#
		1378	# safety
		1379	$self->{instantiate_time} = $cf::RUNTIME
		1380	if $self->{instantiate_time} > $cf::RUNTIME;
		1381	}
		1382
		1383	sub prepare_orig {
		1384	my ($self) = @_;
		1385
		1386	$self->{load_original} = 1;
		1387	$self->{instantiate_time} = $cf::RUNTIME;
		1388	$self->last_access ($cf::RUNTIME);
		1389	$self->instantiate;
		1390	}
		1391
		1392	sub load_header {
		1393	my ($self) = @_;
		1394
		1395	if ($self->load_header_temp) {
		1396	$self->prepare_temp;
		1397	} else {
		1398	$self->load_header_orig
		1399	or return;
		1400	$self->prepare_orig;
		1401	}
		1402
		1403	1
		1404	}
		1405
		1406	sub find;
		1407	sub find {
		1408	my ($path, $origin) = @_;
		1409
		1410	$path = normalise $path, $origin && $origin->path;
		1411
		1412	cf::lock_wait "map_find:$path";
		1413
		1414	$cf::MAP{$path} || do {
		1415	my $guard = cf::lock_acquire "map_find:$path";
		1416	my $map = new_from_path cf::map $path
		1417	or return;
		1418
		1419	$map->{last_save} = $cf::RUNTIME;
		1420
		1421	$map->load_header
		1422	or return;
		1423
		1424	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1425	# doing this can freeze the server in a sync job, obviously
		1426	#$cf::WAIT_FOR_TICK->wait;
		1427	$map->reset;
		1428	undef $guard;
		1429	return find $path;
		1430	}
		1431
		1432	$cf::MAP{$path} = $map
		1433	}
		1434	}
		1435
		1436	sub pre_load { }
		1437	sub post_load { }
		1438
		1439	sub load {
		1440	my ($self) = @_;
		1441
		1442	local $self->{deny_reset} = 1; # loading can take a long time
		1443
		1444	my $path = $self->{path};
		1445	my $guard = cf::lock_acquire "map_load:$path";
		1446
		1447	return if $self->in_memory != cf::MAP_SWAPPED;
		1448
		1449	$self->in_memory (cf::MAP_LOADING);
		1450
		1451	$self->alloc;
		1452
		1453	$self->pre_load;
		1454
		1455	$self->_load_objects ($self->{load_path}, 1)
		1456	or return;
		1457
		1458	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1459	if delete $self->{load_original};
		1460
		1461	if (my $uniq = $self->uniq_path) {
		1462	utf8::encode $uniq;
		1463	if (aio_open $uniq, O_RDONLY, 0) {
		1464	$self->clear_unique_items;
		1465	$self->_load_objects ($uniq, 0);
		1466	}
		1467	}
		1468
		1469	Coro::cede;
		1470
		1471	# now do the right thing for maps
		1472	$self->link_multipart_objects;
		1473
		1474	unless ($self->{deny_activate}) {
		1475	$self->decay_objects;
		1476	$self->fix_auto_apply;
		1477	$self->update_buttons;
		1478	Coro::cede;
		1479	$self->set_darkness_map;
		1480	$self->difficulty ($self->estimate_difficulty)
		1481	unless $self->difficulty;
		1482	Coro::cede;
		1483	$self->activate;
		1484	}
		1485
		1486	$self->post_load;
		1487
		1488	$self->in_memory (cf::MAP_IN_MEMORY);
		1489	}
		1490
		1491	sub customise_for {
		1492	my ($self, $ob) = @_;
		1493
		1494	return find "~" . $ob->name . "/" . $self->{path}
		1495	if $self->per_player;
		1496
		1497	$self
		1498	}
		1499
		1500	# find and load all maps in the 3x3 area around a map
		1501	sub load_diag {
782	my ($map) = @_;	1502	my ($map) = @_;
783		1503
784	my $path = $map->tmpname;	1504	my @diag; # diagonal neighbours
785	defined $path or return;
786		1505
787	unlink "$path.pst";	1506	for (0 .. 3) {
788	};	1507	my $neigh = $map->tile_path ($_)
		1508	or next;
		1509	$neigh = find $neigh, $map
		1510	or next;
		1511	$neigh->load;
789		1512
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1513	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1514	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1515	}
791		1516
792	#############################################################################	1517	for (@diag) {
793	# load/save perl data associated with player->ob objects	1518	my $neigh = find @$_
794		1519	or next;
795	sub all_objects(@) {	1520	$neigh->load;
796	@_, map all_objects ($_->inv), @_	1521	}
797	}	1522	}
798		1523
799	# TODO: compatibility cruft, remove when no longer needed	1524	sub find_sync {
800	cf::player->attach (	1525	my ($path, $origin) = @_;
801	on_load => sub {
802	my ($pl, $path) = @_;
803		1526
804	for my $o (all_objects $pl->ob) {	1527	cf::sync_job { find $path, $origin }
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1528	}
806	$o->set_ob_key_value ("_perl_data");
807		1529
808	%$o = %{ Storable::thaw pack "H*", $value };	1530	sub do_load_sync {
		1531	my ($map) = @_;
		1532
		1533	cf::sync_job { $map->load };
		1534	}
		1535
		1536	our %MAP_PREFETCH;
		1537	our $MAP_PREFETCHER = undef;
		1538
		1539	sub find_async {
		1540	my ($path, $origin) = @_;
		1541
		1542	$path = normalise $path, $origin && $origin->{path};
		1543
		1544	if (my $map = $cf::MAP{$path}) {
		1545	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1546	}
		1547
		1548	undef $MAP_PREFETCH{$path};
		1549	$MAP_PREFETCHER ||= cf::async {
		1550	while (%MAP_PREFETCH) {
		1551	for my $path (keys %MAP_PREFETCH) {
		1552	my $map = find $path
		1553	or next;
		1554	$map->load;
		1555
		1556	delete $MAP_PREFETCH{$path};
809	}	1557	}
810	}	1558	}
		1559	undef $MAP_PREFETCHER;
		1560	};
		1561	$MAP_PREFETCHER->prio (6);
		1562
		1563	()
		1564	}
		1565
		1566	sub save {
		1567	my ($self) = @_;
		1568
		1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1570
		1571	$self->{last_save} = $cf::RUNTIME;
		1572
		1573	return unless $self->dirty;
		1574
		1575	my $save = $self->save_path; utf8::encode $save;
		1576	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1577
		1578	$self->{load_path} = $save;
		1579
		1580	return if $self->{deny_save};
		1581
		1582	local $self->{last_access} = $self->last_access;#d#
		1583
		1584	cf::async {
		1585	$_->contr->save for $self->players;
		1586	};
		1587
		1588	if ($uniq) {
		1589	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1590	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1591	} else {
		1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
811	},	1593	}
812	);	1594	}
813		1595
814	#############################################################################	1596	sub swap_out {
		1597	my ($self) = @_;
815		1598
816	=head2 CORE EXTENSIONS	1599	# save first because save cedes
		1600	$self->save;
817		1601
818	Functions and methods that extend core crossfire objects.	1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
819		1603
820	=head3 cf::player	1604	return if $self->players;
		1605	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1606	return if $self->{deny_save};
		1607
		1608	$self->clear;
		1609	$self->in_memory (cf::MAP_SWAPPED);
		1610	}
		1611
		1612	sub reset_at {
		1613	my ($self) = @_;
		1614
		1615	# TODO: safety, remove and allow resettable per-player maps
		1616	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1617	return 1e99 if $self->{deny_reset};
		1618
		1619	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1620	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1621
		1622	$time + $to
		1623	}
		1624
		1625	sub should_reset {
		1626	my ($self) = @_;
		1627
		1628	$self->reset_at <= $cf::RUNTIME
		1629	}
		1630
		1631	sub reset {
		1632	my ($self) = @_;
		1633
		1634	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1635
		1636	return if $self->players;
		1637	return if $self->isa ("ext::map_per_player");#d#
		1638
		1639	warn "resetting map ", $self->path;#d#
		1640
		1641	$self->in_memory (cf::MAP_SWAPPED);
		1642
		1643	# need to save uniques path
		1644	unless ($self->{deny_save}) {
		1645	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1646
		1647	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1648	if $uniq;
		1649	}
		1650
		1651	delete $cf::MAP{$self->path};
		1652
		1653	$self->clear;
		1654
		1655	$_->clear_links_to ($self) for values %cf::MAP;
		1656
		1657	$self->unlink_save;
		1658	$self->destroy;
		1659	}
		1660
		1661	my $nuke_counter = "aaaa";
		1662
		1663	sub nuke {
		1664	my ($self) = @_;
		1665
		1666	delete $cf::MAP{$self->path};
		1667
		1668	$self->unlink_save;
		1669
		1670	bless $self, "cf::map";
		1671	delete $self->{deny_reset};
		1672	$self->{deny_save} = 1;
		1673	$self->reset_timeout (1);
		1674	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1675
		1676	$cf::MAP{$self->path} = $self;
		1677
		1678	$self->reset; # polite request, might not happen
		1679	}
		1680
		1681	=item cf::map::unique_maps
		1682
		1683	Returns an arrayref of paths of all shared maps that have
		1684	instantiated unique items. May block.
		1685
		1686	=cut
		1687
		1688	sub unique_maps() {
		1689	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1690	or return;
		1691
		1692	my @paths;
		1693
		1694	for (@$files) {
		1695	utf8::decode $_;
		1696	next if /\.pst$/;
		1697	next unless /^$PATH_SEP/o;
		1698
		1699	push @paths, cf::map::normalise $_;
		1700	}
		1701
		1702	\@paths
		1703	}
		1704
		1705	package cf;
		1706
		1707	=back
		1708
		1709	=head3 cf::object
		1710
		1711	=cut
		1712
		1713	package cf::object;
821		1714
822	=over 4	1715	=over 4
823		1716
824	=item cf::player::exists $login	1717	=item $ob->inv_recursive
825		1718
826	Returns true when the given account exists.	1719	Returns the inventory of the object _and_ their inventories, recursively.
827		1720
828	=cut	1721	=cut
829		1722
830	sub cf::player::exists($) {	1723	sub inv_recursive_;
831	cf::player::find $_[0]	1724	sub inv_recursive_ {
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1725	map { $_, inv_recursive_ $_->inv } @_
833	}	1726	}
834		1727
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	1728	sub inv_recursive {
836		1729	inv_recursive_ inv $_[0]
837	Sends an ext reply to the player.
838
839	=cut
840
841	sub cf::player::ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;
843
844	$msg{msgid} = $id;
845
846	$self->send ("ext " . to_json \%msg);
847	}	1730	}
		1731
		1732	package cf;
848		1733
849	=back	1734	=back
850		1735
851	=head3 cf::object::player	1736	=head3 cf::object::player
852		1737
…		…
890	(ref $cf::CFG{"may_$access"}	1775	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1776	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	1777	: $cf::CFG{"may_$access"})
893	}	1778	}
894		1779
		1780	=item $player_object->enter_link
		1781
		1782	Freezes the player and moves him/her to a special map (C<{link}>).
		1783
		1784	The player should be reasonably safe there for short amounts of time. You
		1785	I<MUST> call C<leave_link> as soon as possible, though.
		1786
		1787	Will never block.
		1788
		1789	=item $player_object->leave_link ($map, $x, $y)
		1790
		1791	Moves the player out of the special C<{link}> map onto the specified
		1792	map. If the map is not valid (or omitted), the player will be moved back
		1793	to the location he/she was before the call to C<enter_link>, or, if that
		1794	fails, to the emergency map position.
		1795
		1796	Might block.
		1797
		1798	=cut
		1799
		1800	sub link_map {
		1801	unless ($LINK_MAP) {
		1802	$LINK_MAP = cf::map::find "{link}"
		1803	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1804	$LINK_MAP->load;
		1805	}
		1806
		1807	$LINK_MAP
		1808	}
		1809
		1810	sub cf::object::player::enter_link {
		1811	my ($self) = @_;
		1812
		1813	$self->deactivate_recursive;
		1814
		1815	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1816
		1817	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1818	if $self->map;
		1819
		1820	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1821	}
		1822
		1823	sub cf::object::player::leave_link {
		1824	my ($self, $map, $x, $y) = @_;
		1825
		1826	my $link_pos = delete $self->{_link_pos};
		1827
		1828	unless ($map) {
		1829	# restore original map position
		1830	($map, $x, $y) = @{ $link_pos || [] };
		1831	$map = cf::map::find $map;
		1832
		1833	unless ($map) {
		1834	($map, $x, $y) = @$EMERGENCY_POSITION;
		1835	$map = cf::map::find $map
		1836	or die "FATAL: cannot load emergency map\n";
		1837	}
		1838	}
		1839
		1840	($x, $y) = (-1, -1)
		1841	unless (defined $x) && (defined $y);
		1842
		1843	# use -1 or undef as default coordinates, not 0, 0
		1844	($x, $y) = ($map->enter_x, $map->enter_y)
		1845	if $x <=0 && $y <= 0;
		1846
		1847	$map->load;
		1848	$map->load_diag;
		1849
		1850	return unless $self->contr->active;
		1851	$self->activate_recursive;
		1852
		1853	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1854	$self->enter_map ($map, $x, $y);
		1855	}
		1856
		1857	cf::player->attach (
		1858	on_logout => sub {
		1859	my ($pl) = @_;
		1860
		1861	# abort map switching before logout
		1862	if ($pl->ob->{_link_pos}) {
		1863	cf::sync_job {
		1864	$pl->ob->leave_link
		1865	};
		1866	}
		1867	},
		1868	on_login => sub {
		1869	my ($pl) = @_;
		1870
		1871	# try to abort aborted map switching on player login :)
		1872	# should happen only on crashes
		1873	if ($pl->ob->{_link_pos}) {
		1874	$pl->ob->enter_link;
		1875	(async {
		1876	$pl->ob->reply (undef,
		1877	"There was an internal problem at your last logout, "
		1878	. "the server will try to bring you to your intended destination in a second.",
		1879	cf::NDI_RED);
		1880	# we need this sleep as the login has a concurrent enter_exit running
		1881	# and this sleep increases chances of the player not ending up in scorn
		1882	Coro::Timer::sleep 1;
		1883	$pl->ob->leave_link;
		1884	})->prio (2);
		1885	}
		1886	},
		1887	);
		1888
		1889	=item $player_object->goto ($path, $x, $y)
		1890
		1891	=cut
		1892
		1893	sub cf::object::player::goto {
		1894	my ($self, $path, $x, $y) = @_;
		1895
		1896	$self->enter_link;
		1897
		1898	(async {
		1899	my $map = eval {
		1900	my $map = cf::map::find $path;
		1901	$map = $map->customise_for ($self) if $map;
		1902	$map
		1903	} or
		1904	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1905
		1906	$self->leave_link ($map, $x, $y);
		1907	})->prio (1);
		1908	}
		1909
		1910	=item $player_object->enter_exit ($exit_object)
		1911
		1912	=cut
		1913
		1914	sub parse_random_map_params {
		1915	my ($spec) = @_;
		1916
		1917	my $rmp = { # defaults
		1918	xsize => (cf::rndm 15, 40),
		1919	ysize => (cf::rndm 15, 40),
		1920	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1921	#layout => string,
		1922	};
		1923
		1924	for (split /\n/, $spec) {
		1925	my ($k, $v) = split /\s+/, $_, 2;
		1926
		1927	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1928	}
		1929
		1930	$rmp
		1931	}
		1932
		1933	sub prepare_random_map {
		1934	my ($exit) = @_;
		1935
		1936	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1937
		1938	# all this does is basically replace the /! path by
		1939	# a new random map path (?random/...) with a seed
		1940	# that depends on the exit object
		1941
		1942	my $rmp = parse_random_map_params $exit->msg;
		1943
		1944	if ($exit->map) {
		1945	$rmp->{region} = $exit->region->name;
		1946	$rmp->{origin_map} = $exit->map->path;
		1947	$rmp->{origin_x} = $exit->x;
		1948	$rmp->{origin_y} = $exit->y;
		1949	}
		1950
		1951	$rmp->{random_seed} ||= $exit->random_seed;
		1952
		1953	my $data = cf::to_json $rmp;
		1954	my $md5 = Digest::MD5::md5_hex $data;
		1955	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1956
		1957	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1958	aio_write $fh, 0, (length $data), $data, 0;
		1959	undef $fh;
		1960	aio_rename "$meta~", $meta;
		1961
		1962	$exit->slaying ("?random/$md5");
		1963	$exit->msg (undef);
		1964	}
		1965	}
		1966
		1967	sub cf::object::player::enter_exit {
		1968	my ($self, $exit) = @_;
		1969
		1970	return unless $self->type == cf::PLAYER;
		1971
		1972	if ($exit->slaying eq "/!") {
		1973	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1974	cf::sync_job { prepare_random_map $exit };
		1975	}
		1976
		1977	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1978	my $hp = $exit->stats->hp;
		1979	my $sp = $exit->stats->sp;
		1980
		1981	$self->enter_link;
		1982
		1983	(async {
		1984	$self->deactivate_recursive; # just to be sure
		1985	unless (eval {
		1986	$self->goto ($slaying, $hp, $sp);
		1987
		1988	1;
		1989	}) {
		1990	$self->message ("Something went wrong deep within the crossfire server. "
		1991	. "I'll try to bring you back to the map you were before. "
		1992	. "Please report this to the dungeon master!",
		1993	cf::NDI_UNIQUE | cf::NDI_RED);
		1994
		1995	warn "ERROR in enter_exit: $@";
		1996	$self->leave_link;
		1997	}
		1998	})->prio (1);
		1999	}
		2000
895	=head3 cf::client	2001	=head3 cf::client
896		2002
897	=over 4	2003	=over 4
898		2004
899	=item $client->send_drawinfo ($text, $flags)	2005	=item $client->send_drawinfo ($text, $flags)
…		…
905		2011
906	sub cf::client::send_drawinfo {	2012	sub cf::client::send_drawinfo {
907	my ($self, $text, $flags) = @_;	2013	my ($self, $text, $flags) = @_;
908		2014
909	utf8::encode $text;	2015	utf8::encode $text;
910	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2016	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
911	}	2017	}
912		2018
913		2019
914	=item $success = $client->query ($flags, "text", \&cb)	2020	=item $success = $client->query ($flags, "text", \&cb)
915		2021
…		…
942	on_reply => sub {	2048	on_reply => sub {
943	my ($ns, $msg) = @_;	2049	my ($ns, $msg) = @_;
944		2050
945	# this weird shuffling is so that direct followup queries	2051	# this weird shuffling is so that direct followup queries
946	# get handled first	2052	# get handled first
947	my $queue = delete $ns->{query_queue};	2053	my $queue = delete $ns->{query_queue}
		2054	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		2055
949	(shift @$queue)->[1]->($msg);	2056	(shift @$queue)->[1]->($msg);
		2057	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
950		2058
951	push @{ $ns->{query_queue} }, @$queue;	2059	push @{ $ns->{query_queue} }, @$queue;
952		2060
953	if (@{ $ns->{query_queue} } == @$queue) {	2061	if (@{ $ns->{query_queue} } == @$queue) {
954	if (@$queue) {	2062	if (@$queue) {
…		…
958	}	2066	}
959	}	2067	}
960	},	2068	},
961	);	2069	);
962		2070
963	=item $client->coro (\&cb)	2071	=item $client->async (\&cb)
964		2072
965	Create a new coroutine, running the specified callback. The coroutine will	2073	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	2074	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	2075	or loss of connection).
968		2076
969	=cut	2077	=cut
970		2078
971	sub cf::client::coro {	2079	sub cf::client::async {
972	my ($self, $cb) = @_;	2080	my ($self, $cb) = @_;
973		2081
974	my $coro; $coro = async {	2082	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		2083
981	$coro->on_destroy (sub {	2084	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	2085	delete $self->{_coro}{$coro+0};
983	});	2086	});
984		2087
…		…
1017		2120
1018	# here we export the classes and methods available to script code	2121	# here we export the classes and methods available to script code
1019		2122
1020	=pod	2123	=pod
1021		2124
1022	The following fucntions and emthods are available within a safe environment:	2125	The following functions and methods are available within a safe environment:
1023		2126
1024	cf::object contr pay_amount pay_player map	2127	cf::object contr pay_amount pay_player map
1025	cf::object::player player	2128	cf::object::player player
1026	cf::player peaceful	2129	cf::player peaceful
1027	cf::map trigger	2130	cf::map trigger
…		…
1120	The parameter C<$family> should best start with the name of the extension	2223	The parameter C<$family> should best start with the name of the extension
1121	using it, it should be unique.	2224	using it, it should be unique.
1122		2225
1123	=over 4	2226	=over 4
1124		2227
1125	=item $hashref = cf::db_get $family
1126
1127	Return a hashref for use by the extension C<$family>, which can be
1128	modified. After modifications, you have to call C<cf::db_dirty> or
1129	C<cf::db_sync>.
1130
1131	=item $value = cf::db_get $family => $key	2228	=item $value = cf::db_get $family => $key
1132		2229
1133	Returns a single value from the database	2230	Returns a single value from the database.
1134
1135	=item cf::db_put $family => $hashref
1136
1137	Stores the given family hashref into the database. Updates are delayed, if
1138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1139		2231
1140	=item cf::db_put $family => $key => $value	2232	=item cf::db_put $family => $key => $value
1141		2233
1142	Stores the given C<$value> in the family hash. Updates are delayed, if you	2234	Stores the given C<$value> in the family.
1143	want the data to be synced to disk immediately, use C<cf::db_sync>.
1144
1145	=item cf::db_dirty
1146
1147	Marks the database as dirty, to be updated at a later time.
1148
1149	=item cf::db_sync
1150
1151	Immediately write the database to disk I<if it is dirty>.
1152		2235
1153	=cut	2236	=cut
1154		2237
1155	our $DB;	2238	our $DB;
1156		2239
1157	{	2240	sub db_init {
		2241	unless ($DB) {
		2242	$DB = BDB::db_create $DB_ENV;
		2243
		2244	cf::sync_job {
		2245	eval {
		2246	$DB->set_flags (BDB::CHKSUM);
		2247
		2248	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2249	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2250	cf::cleanup "db_open(db): $!" if $!;
		2251	};
		2252	cf::cleanup "db_open(db): $@" if $@;
		2253	};
		2254
1158	my $path = cf::localdir . "/database.pst";	2255	my $path = cf::localdir . "/database.pst";
		2256	if (stat $path) {
		2257	cf::sync_job {
		2258	my $pst = Storable::retrieve $path;
1159		2259
1160	sub db_load() {	2260	cf::db_put (board => data => $pst->{board});
1161	warn "loading database $path\n";#d# remove later	2261	cf::db_put (guildrules => data => $pst->{guildrules});
1162	$DB = stat $path ? Storable::retrieve $path : { };	2262	cf::db_put (rent => balance => $pst->{rent}{balance});
1163	}	2263	BDB::db_env_txn_checkpoint $DB_ENV;
1164		2264
1165	my $pid;	2265	unlink $path;
1166
1167	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;
1174	cf::_exit 0 if defined $pid;
1175	}	2266	};
1176	}	2267	}
1177
1178	my $dirty;
1179
1180	sub db_sync() {
1181	db_save if $dirty;
1182	undef $dirty;
1183	}
1184
1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1186	db_sync;
1187	});	2268	}
		2269	}
1188		2270
1189	sub db_dirty() {
1190	$dirty = 1;
1191	$idle->start;
1192	}
1193
1194	sub db_get($;$) {	2271	sub db_get($$) {
1195	@_ >= 2	2272	my $key = "$_[0]/$_[1]";
1196	? $DB->{$_[0]}{$_[1]}
1197	: ($DB->{$_[0]} ||= { })
1198	}
1199		2273
		2274	cf::sync_job {
		2275	BDB::db_get $DB, undef, $key, my $data;
		2276
		2277	$! ? ()
		2278	: Compress::LZF::sthaw $data
		2279	}
		2280	}
		2281
1200	sub db_put($$;$) {	2282	sub db_put($$$) {
1201	if (@_ >= 3) {	2283	BDB::dbreq_pri 4;
1202	$DB->{$_[0]}{$_[1]} = $_[2];	2284	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2285	}
		2286
		2287	#############################################################################
		2288	# the server's init and main functions
		2289
		2290	sub load_facedata {
		2291	my $path = sprintf "%s/facedata", cf::datadir;
		2292
		2293	warn "loading facedata from $path\n";
		2294
		2295	my $faces;
		2296	0 < aio_load $path, $faces
		2297	or die "$path: $!";
		2298
		2299	Coro::cede;
		2300	$faces = Storable::thaw $faces;
		2301	Coro::cede;
		2302
		2303	my $meta = delete $faces->{""};
		2304	$meta->{version} == 1
		2305	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2306
		2307	while (my ($face, $info) = each %$faces) {
		2308	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2309	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2310	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2311	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2312	Coro::cede;
		2313	}
		2314
		2315	while (my ($face, $info) = each %$faces) {
		2316	next unless $info->{smooth};
		2317	my $idx = cf::face::find $face
		2318	or next;
		2319	if (my $smooth = cf::face::find $info->{smooth}) {
		2320	cf::face::set_smooth $idx, $smooth;
1203	} else {	2321	} else {
1204	$DB->{$_[0]} = $_[1];	2322	warn "smooth face '$info->{smooth}' not found for face '$face'";
1205	}
1206	db_dirty;
1207	}
1208
1209	cf::global->attach (
1210	prio => 10000,
1211	on_cleanup => sub {
1212	db_sync;
1213	},	2323	}
1214	);	2324	Coro::cede;
1215	}	2325	}
1216		2326
1217	#############################################################################	2327	1
1218	# the server's main()	2328	}
		2329
		2330	sub reload_resources {
		2331	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2332	or die "unable to load regions file\n";#d#
		2333	load_facedata
		2334	or die "unable to load facedata\n";#d#
		2335	}
		2336
		2337	sub init {
		2338	reload_resources;
		2339	}
1219		2340
1220	sub cfg_load {	2341	sub cfg_load {
1221	open my $fh, "<:utf8", cf::confdir . "/config"	2342	open my $fh, "<:utf8", cf::confdir . "/config"
1222	or return;	2343	or return;
1223		2344
1224	local $/;	2345	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	2346	*CFG = YAML::Syck::Load <$fh>;
		2347
		2348	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2349
		2350	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2351	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2352
		2353	if (exists $CFG{mlockall}) {
		2354	eval {
		2355	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2356	and die "WARNING: m(un)lockall failed: $!\n";
		2357	};
		2358	warn $@ if $@;
		2359	}
1226	}	2360	}
1227		2361
1228	sub main {	2362	sub main {
		2363	# we must not ever block the main coroutine
		2364	local $Coro::idle = sub {
		2365	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2366	(async {
		2367	Event::one_event;
		2368	})->prio (Coro::PRIO_MAX);
		2369	};
		2370
1229	cfg_load;	2371	cfg_load;
1230	db_load;	2372	db_init;
1231	load_extensions;	2373	load_extensions;
		2374
		2375	$TICK_WATCHER->start;
1232	Event::loop;	2376	Event::loop;
1233	}	2377	}
1234		2378
1235	#############################################################################	2379	#############################################################################
1236	# initialisation	2380	# initialisation and cleanup
1237		2381
		2382	# install some emergency cleanup handlers
		2383	BEGIN {
		2384	for my $signal (qw(INT HUP TERM)) {
		2385	Event->signal (
		2386	reentrant => 0,
		2387	data => WF_AUTOCANCEL,
		2388	signal => $signal,
		2389	prio => 0,
		2390	cb => sub {
		2391	cf::cleanup "SIG$signal";
		2392	},
		2393	);
		2394	}
		2395	}
		2396
		2397	sub emergency_save() {
		2398	my $freeze_guard = cf::freeze_mainloop;
		2399
		2400	warn "enter emergency perl save\n";
		2401
		2402	cf::sync_job {
		2403	# use a peculiar iteration method to avoid tripping on perl
		2404	# refcount bugs in for. also avoids problems with players
		2405	# and maps saved/destroyed asynchronously.
		2406	warn "begin emergency player save\n";
		2407	for my $login (keys %cf::PLAYER) {
		2408	my $pl = $cf::PLAYER{$login} or next;
		2409	$pl->valid or next;
		2410	$pl->save;
		2411	}
		2412	warn "end emergency player save\n";
		2413
		2414	warn "begin emergency map save\n";
		2415	for my $path (keys %cf::MAP) {
		2416	my $map = $cf::MAP{$path} or next;
		2417	$map->valid or next;
		2418	$map->save;
		2419	}
		2420	warn "end emergency map save\n";
		2421
		2422	warn "begin emergency database checkpoint\n";
		2423	BDB::db_env_txn_checkpoint $DB_ENV;
		2424	warn "end emergency database checkpoint\n";
		2425	};
		2426
		2427	warn "leave emergency perl save\n";
		2428	}
		2429
		2430	sub post_cleanup {
		2431	my ($make_core) = @_;
		2432
		2433	warn Carp::longmess "post_cleanup backtrace"
		2434	if $make_core;
		2435	}
		2436
1238	sub _perl_reload() {	2437	sub reload() {
		2438	# can/must only be called in main
		2439	if ($Coro::current != $Coro::main) {
		2440	warn "can only reload from main coroutine";
		2441	return;
		2442	}
		2443
1239	warn "reloading...";	2444	warn "reloading...";
1240		2445
1241	eval {	2446	warn "entering sync_job";
1242	local $FREEZE = 1;
1243		2447
		2448	cf::sync_job {
		2449	cf::write_runtime; # external watchdog should not bark
1244	cf::emergency_save;	2450	cf::emergency_save;
		2451	cf::write_runtime; # external watchdog should not bark
1245		2452
1246	# cancel all watchers	2453	warn "syncing database to disk";
		2454	BDB::db_env_txn_checkpoint $DB_ENV;
		2455
		2456	# if anything goes wrong in here, we should simply crash as we already saved
		2457
		2458	warn "cancelling all WF_AUTOCANCEL watchers";
1247	for (Event::all_watchers) {	2459	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	2460	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	2461	}
1250		2462
		2463	warn "flushing outstanding aio requests";
		2464	for (;;) {
		2465	BDB::flush;
		2466	IO::AIO::flush;
		2467	Coro::cede;
		2468	last unless IO::AIO::nreqs || BDB::nreqs;
		2469	warn "iterate...";
		2470	}
		2471
		2472	++$RELOAD;
		2473
1251	# cancel all extension coros	2474	warn "cancelling all extension coros";
1252	$_->cancel for values %EXT_CORO;	2475	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	2476	%EXT_CORO = ();
1254		2477
1255	# unload all extensions	2478	warn "removing commands";
1256	for (@exts) {	2479	%COMMAND = ();
		2480
		2481	warn "removing ext commands";
		2482	%EXTCMD = ();
		2483
		2484	warn "unloading/nuking all extensions";
		2485	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	2486	warn "... unloading $pkg";
1258	unload_extension $_;	2487
		2488	if (my $cb = $pkg->can ("unload")) {
		2489	eval {
		2490	$cb->($pkg);
		2491	1
		2492	} or warn "$pkg unloaded, but with errors: $@";
1259	}	2493	}
1260		2494
		2495	warn "... nuking $pkg";
		2496	Symbol::delete_package $pkg;
		2497	}
		2498
1261	# unload all modules loaded from $LIBDIR	2499	warn "unloading all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	2500	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2501	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		2502
1265	warn "removing <$k>";	2503	warn "... unloading $k";
1266	delete $INC{$k};	2504	delete $INC{$k};
1267		2505
1268	$k =~ s/\.pm$//;	2506	$k =~ s/\.pm$//;
1269	$k =~ s/\//::/g;	2507	$k =~ s/\//::/g;
1270		2508
…		…
1273	}	2511	}
1274		2512
1275	Symbol::delete_package $k;	2513	Symbol::delete_package $k;
1276	}	2514	}
1277		2515
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	2516	warn "getting rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	2517	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2518	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		2519
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	2520	warn "unloading cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	2521	delete $INC{"cf.pm"};
1291		2522
1292	# don't, removes xs symbols, too,	2523	# don't, removes xs symbols, too,
1293	# and global variables created in xs	2524	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	2525	#Symbol::delete_package __PACKAGE__;
1295		2526
1296	# reload cf.pm	2527	warn "unload completed, starting to reload now";
		2528
1297	warn "reloading cf.pm";	2529	warn "reloading cf.pm";
1298	require cf;	2530	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2531	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		2532
1301	# load config and database again	2533	warn "loading config and database again";
1302	cf::cfg_load;	2534	cf::cfg_load;
1303	cf::db_load;
1304		2535
1305	# load extensions
1306	warn "load extensions";	2536	warn "loading extensions";
1307	cf::load_extensions;	2537	cf::load_extensions;
1308		2538
1309	# reattach attachments to objects	2539	warn "reattaching attachments to objects/players";
1310	warn "reattach";	2540	_global_reattach; # objects, sockets
1311	_global_reattach;	2541	warn "reattaching attachments to maps";
		2542	reattach $_ for values %MAP;
		2543	warn "reattaching attachments to players";
		2544	reattach $_ for values %PLAYER;
		2545
		2546	warn "loading reloadable resources";
		2547	reload_resources;
		2548
		2549	warn "leaving sync_job";
		2550
		2551	1
		2552	} or do {
		2553	warn $@;
		2554	warn "error while reloading, exiting.";
		2555	exit 1;
1312	};	2556	};
1313	warn $@ if $@;
1314		2557
1315	warn "reloaded";	2558	warn "reloaded";
1316	};	2559	};
1317		2560
1318	sub perl_reload() {	2561	our $RELOAD_WATCHER; # used only during reload
1319	_perl_reload;
1320	}
1321		2562
1322	register "<global>", __PACKAGE__;
1323
1324	register_command "perl-reload" => sub {	2563	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	2564	my ($who, $arg) = @_;
1326		2565
1327	if ($who->flag (FLAG_WIZ)) {	2566	if ($who->flag (FLAG_WIZ)) {
1328	$who->message ("reloading...");	2567	$who->message ("reloading server.");
1329	_perl_reload;	2568
		2569	# doing reload synchronously and two reloads happen back-to-back,
		2570	# coro crashes during coro_state_free->destroy here.
		2571
		2572	$RELOAD_WATCHER ||= Event->timer (
		2573	reentrant => 0,
		2574	after => 0,
		2575	data => WF_AUTOCANCEL,
		2576	cb => sub {
		2577	reload;
		2578	undef $RELOAD_WATCHER;
		2579	},
		2580	);
1330	}	2581	}
1331	};	2582	};
1332		2583
1333	unshift @INC, $LIBDIR;	2584	unshift @INC, $LIBDIR;
		2585
		2586	my $bug_warning = 0;
1334		2587
1335	$TICK_WATCHER = Event->timer (	2588	$TICK_WATCHER = Event->timer (
1336	reentrant => 0,	2589	reentrant => 0,
		2590	parked => 1,
1337	prio => 0,	2591	prio => 0,
1338	at => $NEXT_TICK || $TICK,	2592	at => $NEXT_TICK || $TICK,
1339	data => WF_AUTOCANCEL,	2593	data => WF_AUTOCANCEL,
1340	cb => sub {	2594	cb => sub {
1341	unless ($FREEZE) {	2595	if ($Coro::current != $Coro::main) {
		2596	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2597	unless ++$bug_warning > 10;
		2598	return;
		2599	}
		2600
		2601	$NOW = Event::time;
		2602
1342	cf::server_tick; # one server iteration	2603	cf::server_tick; # one server iteration
1343	$RUNTIME += $TICK;	2604	$RUNTIME += $TICK;
1344	}
1345
1346	$NEXT_TICK += $TICK;	2605	$NEXT_TICK += $TICK;
		2606
		2607	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2608	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2609	Coro::async_pool {
		2610	write_runtime
		2611	or warn "ERROR: unable to write runtime file: $!";
		2612	};
		2613	}
		2614
		2615	$WAIT_FOR_TICK->broadcast;
		2616	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2617
		2618	# my $AFTER = Event::time;
		2619	# warn $AFTER - $NOW;#d#
1347		2620
1348	# if we are delayed by four ticks or more, skip them all	2621	# if we are delayed by four ticks or more, skip them all
1349	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2622	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1350		2623
1351	$TICK_WATCHER->at ($NEXT_TICK);	2624	$TICK_WATCHER->at ($NEXT_TICK);
1352	$TICK_WATCHER->start;	2625	$TICK_WATCHER->start;
1353	},	2626	},
1354	);	2627	);
1355		2628
		2629	{
		2630	BDB::max_poll_time $TICK * 0.1;
		2631	$BDB_POLL_WATCHER = Event->io (
		2632	reentrant => 0,
		2633	fd => BDB::poll_fileno,
		2634	poll => 'r',
		2635	prio => 0,
		2636	data => WF_AUTOCANCEL,
		2637	cb => \&BDB::poll_cb,
		2638	);
		2639	BDB::min_parallel 8;
		2640
		2641	BDB::set_sync_prepare {
		2642	my $status;
		2643	my $current = $Coro::current;
		2644	(
		2645	sub {
		2646	$status = $!;
		2647	$current->ready; undef $current;
		2648	},
		2649	sub {
		2650	Coro::schedule while defined $current;
		2651	$! = $status;
		2652	},
		2653	)
		2654	};
		2655
		2656	unless ($DB_ENV) {
		2657	$DB_ENV = BDB::db_env_create;
		2658
		2659	cf::sync_job {
		2660	eval {
		2661	BDB::db_env_open
		2662	$DB_ENV,
		2663	$BDB_ENV_DIR,
		2664	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2665	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2666	0666;
		2667
		2668	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2669
		2670	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2671	$DB_ENV->set_lk_detect;
		2672	};
		2673
		2674	cf::cleanup "db_env_open(db): $@" if $@;
		2675	};
		2676	}
		2677	}
		2678
		2679	{
		2680	IO::AIO::min_parallel 8;
		2681
		2682	undef $Coro::AIO::WATCHER;
1356	IO::AIO::max_poll_time $TICK * 0.2;	2683	IO::AIO::max_poll_time $TICK * 0.1;
1357		2684	$AIO_POLL_WATCHER = Event->io (
1358	Event->io (fd => IO::AIO::poll_fileno,	2685	reentrant => 0,
1359	poll => 'r',
1360	prio => 5,
1361	data => WF_AUTOCANCEL,	2686	data => WF_AUTOCANCEL,
		2687	fd => IO::AIO::poll_fileno,
		2688	poll => 'r',
		2689	prio => 6,
1362	cb => \&IO::AIO::poll_cb);	2690	cb => \&IO::AIO::poll_cb,
		2691	);
		2692	}
1363		2693
1364	# we must not ever block the main coroutine	2694	END { cf::emergency_save }
1365	$Coro::idle = sub {
1366	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1367	warn "FATAL: Coro::idle was called, major BUG\n";
1368	(Coro::unblock_sub {
1369	Event::one_event;
1370	})->();
1371	};
1372		2695
1373	1	2696	1
1374		2697

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