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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 1.233 by root, Wed Apr 4 02:20:27 2007 UTC

…		…
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Storable;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
12		13
13	use Coro 3.3;	14	use Coro 3.52 ();
		15	use Coro::State;
14	use Coro::Event;	16	use Coro::Event;
15	use Coro::Timer;	17	use Coro::Timer;
16	use Coro::Signal;	18	use Coro::Signal;
17	use Coro::Semaphore;	19	use Coro::Semaphore;
18	use Coro::AIO;	20	use Coro::AIO;
19		21
		22	use BDB ();
		23	use Data::Dumper;
		24	use Digest::MD5;
20	use Fcntl;	25	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	26	use YAML::Syck ();
		27	use IO::AIO 2.32 ();
23	use Time::HiRes;	28	use Time::HiRes;
		29	use Compress::LZF;
24		30
		31	# configure various modules to our taste
		32	#
		33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		35
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	36	$Event::Eval = 1; # no idea why this is required, but it is
26		37
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	39	$YAML::Syck::ImplicitUnicode = 1;
29		40
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		42
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		44
34	our %COMMAND = ();	45	our %COMMAND = ();
35	our %COMMAND_TIME = ();	46	our %COMMAND_TIME = ();
		47
		48	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	49	our %EXTCMD = ();
		50	our %EXT_CORO = (); # coroutines bound to extensions
		51	our %EXT_MAP = (); # pluggable maps
37		52
		53	our $RELOAD; # number of reloads so far
38	our @EVENT;	54	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	55	our $LIBDIR = datadir . "/ext";
40		56
41	our $TICK = MAX_TIME * 1e-6;	57	our $TICK = MAX_TIME * 1e-6;
42	our $TICK_WATCHER;	58	our $TICK_WATCHER;
		59	our $AIO_POLL_WATCHER;
		60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	61	our $NEXT_TICK;
44	our $NOW;	62	our $NOW;
		63	our $USE_FSYNC = 1; # use fsync to write maps - default off
		64
		65	our $BDB_POLL_WATCHER;
		66	our $DB_ENV;
45		67
46	our %CFG;	68	our %CFG;
47		69
48	our $UPTIME; $UPTIME ||= time;	70	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	71	our $RUNTIME;
50		72
		73	our %PLAYER; # all users
51	our %MAP; # all maps	74	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	75	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	76	our $RANDOM_MAPS = cf::localdir . "/random";
		77	our $BDB_ENV_DIR = cf::localdir . "/db";
		78
		79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		81
		82	# used to convert map paths into valid unix filenames by replacing / by ∕
		83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		84
55	binmode STDOUT;	85	binmode STDOUT;
56	binmode STDERR;	86	binmode STDERR;
57		87
58	# read virtual server time, if available	88	# read virtual server time, if available
…		…
64		94
65	mkdir cf::localdir;	95	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	96	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	97	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	98	mkdir cf::localdir . "/" . cf::uniquedir;
		99	mkdir $RANDOM_MAPS;
		100	mkdir $BDB_ENV_DIR;
69		101
70	our %EXT_CORO;	102	our $EMERGENCY_POSITION;
		103
		104	sub cf::map::normalise;
71		105
72	#############################################################################	106	#############################################################################
73		107
74	=head2 GLOBAL VARIABLES	108	=head2 GLOBAL VARIABLES
75		109
…		…
99		133
100	=item %cf::CFG	134	=item %cf::CFG
101		135
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	136	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	137	from wherever your confdir points to.
		138
		139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		140
		141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		143	processing has been done. Call C<< ->wait >> on them to maximise the
		144	window of cpu time available, or simply to synchronise to the server tick.
104		145
105	=back	146	=back
106		147
107	=cut	148	=cut
108		149
…		…
112	utf8::encode $msg;	153	utf8::encode $msg;
113		154
114	$msg .= "\n"	155	$msg .= "\n"
115	unless $msg =~ /\n$/;	156	unless $msg =~ /\n$/;
116		157
117	LOG llevError, "cfperl: $msg";	158	LOG llevError, $msg;
118	};	159	};
119	}	160	}
120		161
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		181
141	$Event::DIED = sub {	182	$Event::DIED = sub {
142	warn "error in event callback: @_";	183	warn "error in event callback: @_";
143	};	184	};
144		185
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	186	=head2 UTILITY FUNCTIONS
150		187
151	=over 4	188	=over 4
152		189
153	=cut	190	=item dumpval $ref
154		191
		192	=cut
		193
		194	sub dumpval {
		195	eval {
		196	local $SIG{__DIE__};
		197	my $d;
		198	if (1) {
		199	$d = new Data::Dumper([$_[0]], ["*var"]);
		200	$d->Terse(1);
		201	$d->Indent(2);
		202	$d->Quotekeys(0);
		203	$d->Useqq(1);
		204	#$d->Bless(...);
		205	$d->Seen($_[1]) if @_ > 1;
		206	$d = $d->Dump();
		207	}
		208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		209	$d
		210	} || "[unable to dump $_[0]: '$@']";
		211	}
		212
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
156		214
157	=item $ref = cf::from_json $json	215	=item $ref = cf::from_json $json
158		216
159	Converts a JSON string into the corresponding perl data structure.	217	Converts a JSON string into the corresponding perl data structure.
160		218
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	219	=item $json = cf::to_json $ref
169		220
170	Converts a perl data structure into its JSON representation.	221	Converts a perl data structure into its JSON representation.
171		222
172	=cut	223	=item cf::lock_wait $string
173		224
174	sub to_json($) {	225	Wait until the given lock is available. See cf::lock_acquire.
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		226
179	# main coro must never ever "block" except in Event	227	=item my $lock = cf::lock_acquire $string
180	# sync_job ensures this by running the job in a coroutine	228
181	# and waiting in Event while the server is otherwise frozen	229	Wait until the given lock is available and then acquires it and returns
		230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		231	for example when the coroutine gets canceled), the lock is automatically
		232	returned.
		233
		234	Lock names should begin with a unique identifier (for example, cf::map::find
		235	uses map_find and cf::map::load uses map_load).
		236
		237	=cut
		238
		239	our %LOCK;
		240
		241	sub lock_wait($) {
		242	my ($key) = @_;
		243
		244	# wait for lock, if any
		245	while ($LOCK{$key}) {
		246	push @{ $LOCK{$key} }, $Coro::current;
		247	Coro::schedule;
		248	}
		249	}
		250
		251	sub lock_acquire($) {
		252	my ($key) = @_;
		253
		254	# wait, to be sure we are not locked
		255	lock_wait $key;
		256
		257	$LOCK{$key} = [];
		258
		259	Coro::guard {
		260	# wake up all waiters, to be on the safe side
		261	$_->ready for @{ delete $LOCK{$key} };
		262	}
		263	}
		264
		265	sub freeze_mainloop {
		266	return unless $TICK_WATCHER->is_active;
		267
		268	my $guard = Coro::guard {
		269	$TICK_WATCHER->start;
		270	};
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
		284
		285	=item cf::sync_job { BLOCK }
		286
		287	The design of crossfire+ requires that the main coro ($Coro::main) is
		288	always able to handle events or runnable, as crossfire+ is only partly
		289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		290
		291	If it must be done, put the blocking parts into C<sync_job>. This will run
		292	the given BLOCK in another coroutine while waiting for the result. The
		293	server will be frozen during this time, so the block should either finish
		294	fast or be very important.
		295
		296	=cut
		297
182	sub sync_job(&) {	298	sub sync_job(&) {
183	my ($job) = @_;	299	my ($job) = @_;
184		300
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
		305	# TODO: use suspend/resume instead
		306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
		317
198	while ($busy) {	318	while ($busy) {
199	Coro::cede_notself;	319	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	320	}
		321
		322	wantarray ? @res : $res[0]
202	} else {	323	} else {
203	$coro->join;	324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
204	}	327	}
205
206	wantarray ? @res : $res[0]
207	}	328	}
208		329
209	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
210		331
211	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
213		334
214	=cut	335	=cut
215		336
216	sub coro(&) {	337	sub async_ext(&) {
217	my $cb = shift;	338	my $cb = shift;
218		339
219	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		341
226	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
228	});	344	});
229	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
230		346
231	$coro	347	$coro
		348	}
		349
		350	sub write_runtime {
		351	my $guard = cf::lock_acquire "write_runtime";
		352
		353	my $runtime = cf::localdir . "/runtime";
		354
		355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		356	or return;
		357
		358	my $value = $cf::RUNTIME + 90 + 10;
		359	# 10 is the runtime save interval, for a monotonic clock
		360	# 60 allows for the watchdog to kill the server.
		361
		362	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		363	and return;
		364
		365	# always fsync - this file is important
		366	aio_fsync $fh
		367	and return;
		368
		369	close $fh
		370	or return;
		371
		372	aio_rename "$runtime~", $runtime
		373	and return;
		374
		375	1
		376	}
		377
		378	=item cf::datalog type => key => value, ...
		379
		380	Log a datalog packet of the given type with the given key-value pairs.
		381
		382	=cut
		383
		384	sub datalog($@) {
		385	my ($type, %kv) = @_;
		386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
232	}	387	}
233		388
234	=back	389	=back
235		390
236	=cut	391	=cut
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	523	our @CB_MAP = ();
369		524
370	my %attachment;	525	my %attachment;
371		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
372	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
374		535
375	use sort 'stable';	536	use sort 'stable';
376		537
…		…
547	# object support	708	# object support
548		709
549	sub reattach {	710	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		715
553	my $registry = $obj->registry;	716	my $registry = $obj->registry;
554		717
555	@$registry = ();	718	@$registry = ();
556		719
…		…
603	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
604		767
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	771	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	772	close $fh;
610		773
611	if (@$objs) {	774	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	776	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	778	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	779	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	780	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
619	}	782	}
620	} else {	783	} else {
621	aio_unlink "$filename.pst";	784	aio_unlink "$filename.pst";
…		…
649	or return;	812	or return;
650		813
651	unless (aio_stat "$filename.pst") {	814	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	815	(aio_load "$filename.pst", $av) >= 0
653	or return;	816	or return;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
655	}	818	}
656		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
657	return ($data, $av);	822	return ($data, $av);
658	}	823	}
659		824
660	#############################################################################	825	#############################################################################
661	# command handling &c	826	# command handling &c
…		…
686	=cut	851	=cut
687		852
688	sub register_extcmd {	853	sub register_extcmd {
689	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
690		855
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
695	}	857	}
696		858
697	cf::player->attach (	859	cf::player->attach (
698	on_command => sub {	860	on_command => sub {
699	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
712		874
713	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
714		876
715	if (ref $msg) {	877	if (ref $msg) {
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
718	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
719	}	881	}
720	}	882	}
721	} else {	883	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
724		886
725	cf::override;	887	cf::override;
726	},	888	},
727	);	889	);
728		890
729	sub register {
730	my ($base, $pkg) = @_;
731
732	#TODO
733	}
734
735	sub load_extension {	891	sub load_extension {
736	my ($path) = @_;	892	my ($path) = @_;
737		893
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
739	my $base = $1;	895	my $base = $1;
740	my $pkg = $1;	896	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
743		899
744	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
745		901
746	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
747	or die "$path: $!";	903	or die "$path: $!";
748		904
749	my $source =	905	my $source =
750	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
753	. "\n};\n1";	909	. "\n};\n1";
754		910
755	eval $source	911	unless (eval $source) {
756	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
757	: "extension disabled.\n";	913	: "extension disabled.\n";
758		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
759	push @exts, $pkg;	915	warn $@;
760	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
761		917	exit 1;
762	# no strict 'refs';	918	}
763	# @{"$pkg\::ISA"} = ext::;	919	die $@;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	920	}
778		921
779	# remove commands	922	push @EXTS, $pkg;
780	for my $name (keys %COMMAND) {
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
782
783	if (@cb) {
784	$COMMAND{$name} = \@cb;
785	} else {
786	delete $COMMAND{$name};
787	}
788	}
789
790	# remove extcmds
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
792	delete $EXTCMD{$name};
793	}
794
795	if (my $cb = $pkg->can ("unload")) {
796	eval {
797	$cb->($pkg);
798	1
799	} or warn "$pkg unloaded, but with errors: $@";
800	}
801
802	Symbol::delete_package $pkg;
803	}	923	}
804		924
805	sub load_extensions {	925	sub load_extensions {
806	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
807	next unless -r $ext;	927	next unless -r $ext;
…		…
811	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
812	}	932	}
813	}	933	}
814		934
815	#############################################################################	935	#############################################################################
816	# load/save/clean perl data associated with a map
817		936
818	*cf::mapsupport::on_clean = sub {	937	=head2 CORE EXTENSIONS
		938
		939	Functions and methods that extend core crossfire objects.
		940
		941	=cut
		942
		943	package cf::player;
		944
		945	use Coro::AIO;
		946
		947	=head3 cf::player
		948
		949	=over 4
		950
		951	=item cf::player::find $login
		952
		953	Returns the given player object, loading it if necessary (might block).
		954
		955	=cut
		956
		957	sub playerdir($) {
		958	cf::localdir
		959	. "/"
		960	. cf::playerdir
		961	. "/"
		962	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		963	}
		964
		965	sub path($) {
		966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		967
		968	(playerdir $login) . "/$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	$self->ns->ext_event ($type, %msg);
		1153	}
		1154
		1155	package cf;
		1156
		1157	=back
		1158
		1159
		1160	=head3 cf::map
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::map;
		1167
		1168	use Fcntl;
		1169	use Coro::AIO;
		1170
		1171	use overload
		1172	'""' => \&as_string,
		1173	fallback => 1;
		1174
		1175	our $MAX_RESET = 3600;
		1176	our $DEFAULT_RESET = 3000;
		1177
		1178	sub generate_random_map {
		1179	my ($self, $rmp) = @_;
		1180	# mit "rum" bekleckern, nicht
		1181	$self->_create_random_map (
		1182	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1183	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1184	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1185	$rmp->{exit_on_final_map},
		1186	$rmp->{xsize}, $rmp->{ysize},
		1187	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1188	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1189	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1190	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1191	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1192	(cf::region::find $rmp->{region}), $rmp->{custom}
		1193	)
		1194	}
		1195
		1196	=item cf::map->register ($regex, $prio)
		1197
		1198	Register a handler for the map path matching the given regex at the
		1199	givne priority (higher is better, built-in handlers have priority 0, the
		1200	default).
		1201
		1202	=cut
		1203
		1204	sub register {
		1205	my (undef, $regex, $prio) = @_;
		1206	my $pkg = caller;
		1207
		1208	no strict;
		1209	push @{"$pkg\::ISA"}, __PACKAGE__;
		1210
		1211	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1212	}
		1213
		1214	# also paths starting with '/'
		1215	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1216
		1217	sub thawer_merge {
		1218	my ($self, $merge) = @_;
		1219
		1220	# we have to keep some variables in memory intact
		1221	local $self->{path};
		1222	local $self->{load_path};
		1223	local $self->{deny_save};
		1224	local $self->{deny_reset};
		1225
		1226	$self->SUPER::thawer_merge ($merge);
		1227	}
		1228
		1229	sub normalise {
		1230	my ($path, $base) = @_;
		1231
		1232	$path = "$path"; # make sure its a string
		1233
		1234	$path =~ s/\.map$//;
		1235
		1236	# map plan:
		1237	#
		1238	# /! non-realised random map exit (special hack!)
		1239	# {... are special paths that are not being touched
		1240	# ?xxx/... are special absolute paths
		1241	# ?random/... random maps
		1242	# /... normal maps
		1243	# ~user/... per-player map of a specific user
		1244
		1245	$path =~ s/$PATH_SEP/\//go;
		1246
		1247	# treat it as relative path if it starts with
		1248	# something that looks reasonable
		1249	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1250	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1251
		1252	$base =~ s{[^/]+/?$}{};
		1253	$path = "$base/$path";
		1254	}
		1255
		1256	for ($path) {
		1257	redo if s{//}{/};
		1258	redo if s{/\.?/}{/};
		1259	redo if s{/[^/]+/\.\./}{/};
		1260	}
		1261
		1262	$path
		1263	}
		1264
		1265	sub new_from_path {
		1266	my (undef, $path, $base) = @_;
		1267
		1268	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1269
		1270	$path = normalise $path, $base;
		1271
		1272	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1273	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1274	my $self = bless cf::map::new, $pkg;
		1275	$self->{path} = $path; $self->path ($path);
		1276	$self->init; # pass $1 etc.
		1277	return $self;
		1278	}
		1279	}
		1280
		1281	Carp::carp "unable to resolve path '$path' (base '$base').";
		1282	()
		1283	}
		1284
		1285	sub init {
		1286	my ($self) = @_;
		1287
		1288	$self
		1289	}
		1290
		1291	sub as_string {
		1292	my ($self) = @_;
		1293
		1294	"$self->{path}"
		1295	}
		1296
		1297	# the displayed name, this is a one way mapping
		1298	sub visible_name {
		1299	&as_string
		1300	}
		1301
		1302	# the original (read-only) location
		1303	sub load_path {
		1304	my ($self) = @_;
		1305
		1306	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1307	}
		1308
		1309	# the temporary/swap location
		1310	sub save_path {
		1311	my ($self) = @_;
		1312
		1313	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1314	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1315	}
		1316
		1317	# the unique path, undef == no special unique path
		1318	sub uniq_path {
		1319	my ($self) = @_;
		1320
		1321	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1322	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1323	}
		1324
		1325	# and all this just because we cannot iterate over
		1326	# all maps in C++...
		1327	sub change_all_map_light {
		1328	my ($change) = @_;
		1329
		1330	$_->change_map_light ($change)
		1331	for grep $_->outdoor, values %cf::MAP;
		1332	}
		1333
		1334	sub unlink_save {
		1335	my ($self) = @_;
		1336
		1337	utf8::encode (my $save = $self->save_path);
		1338	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1339	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1340	}
		1341
		1342	sub load_header_from($) {
		1343	my ($self, $path) = @_;
		1344
		1345	utf8::encode $path;
		1346	#aio_open $path, O_RDONLY, 0
		1347	# or return;
		1348
		1349	$self->_load_header ($path)
		1350	or return;
		1351
		1352	$self->{load_path} = $path;
		1353
		1354	1
		1355	}
		1356
		1357	sub load_header_orig {
		1358	my ($self) = @_;
		1359
		1360	$self->load_header_from ($self->load_path)
		1361	}
		1362
		1363	sub load_header_temp {
		1364	my ($self) = @_;
		1365
		1366	$self->load_header_from ($self->save_path)
		1367	}
		1368
		1369	sub prepare_temp {
		1370	my ($self) = @_;
		1371
		1372	$self->last_access ((delete $self->{last_access})
		1373	|| $cf::RUNTIME); #d#
		1374	# safety
		1375	$self->{instantiate_time} = $cf::RUNTIME
		1376	if $self->{instantiate_time} > $cf::RUNTIME;
		1377	}
		1378
		1379	sub prepare_orig {
		1380	my ($self) = @_;
		1381
		1382	$self->{load_original} = 1;
		1383	$self->{instantiate_time} = $cf::RUNTIME;
		1384	$self->last_access ($cf::RUNTIME);
		1385	$self->instantiate;
		1386	}
		1387
		1388	sub load_header {
		1389	my ($self) = @_;
		1390
		1391	if ($self->load_header_temp) {
		1392	$self->prepare_temp;
		1393	} else {
		1394	$self->load_header_orig
		1395	or return;
		1396	$self->prepare_orig;
		1397	}
		1398
		1399	1
		1400	}
		1401
		1402	sub find;
		1403	sub find {
		1404	my ($path, $origin) = @_;
		1405
		1406	$path = normalise $path, $origin && $origin->path;
		1407
		1408	cf::lock_wait "map_find:$path";
		1409
		1410	$cf::MAP{$path} || do {
		1411	my $guard = cf::lock_acquire "map_find:$path";
		1412	my $map = new_from_path cf::map $path
		1413	or return;
		1414
		1415	$map->{last_save} = $cf::RUNTIME;
		1416
		1417	$map->load_header
		1418	or return;
		1419
		1420	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1421	# doing this can freeze the server in a sync job, obviously
		1422	#$cf::WAIT_FOR_TICK->wait;
		1423	$map->reset;
		1424	undef $guard;
		1425	return find $path;
		1426	}
		1427
		1428	$cf::MAP{$path} = $map
		1429	}
		1430	}
		1431
		1432	sub pre_load { }
		1433	sub post_load { }
		1434
		1435	sub load {
		1436	my ($self) = @_;
		1437
		1438	local $self->{deny_reset} = 1; # loading can take a long time
		1439
		1440	my $path = $self->{path};
		1441	my $guard = cf::lock_acquire "map_load:$path";
		1442
		1443	return if $self->in_memory != cf::MAP_SWAPPED;
		1444
		1445	$self->in_memory (cf::MAP_LOADING);
		1446
		1447	$self->alloc;
		1448
		1449	$self->pre_load;
		1450
		1451	$self->_load_objects ($self->{load_path}, 1)
		1452	or return;
		1453
		1454	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1455	if delete $self->{load_original};
		1456
		1457	if (my $uniq = $self->uniq_path) {
		1458	utf8::encode $uniq;
		1459	if (aio_open $uniq, O_RDONLY, 0) {
		1460	$self->clear_unique_items;
		1461	$self->_load_objects ($uniq, 0);
		1462	}
		1463	}
		1464
		1465	Coro::cede;
		1466
		1467	# now do the right thing for maps
		1468	$self->link_multipart_objects;
		1469
		1470	unless ($self->{deny_activate}) {
		1471	$self->decay_objects;
		1472	$self->fix_auto_apply;
		1473	$self->update_buttons;
		1474	Coro::cede;
		1475	$self->set_darkness_map;
		1476	$self->difficulty ($self->estimate_difficulty)
		1477	unless $self->difficulty;
		1478	Coro::cede;
		1479	$self->activate;
		1480	}
		1481
		1482	$self->post_load;
		1483
		1484	$self->in_memory (cf::MAP_IN_MEMORY);
		1485	}
		1486
		1487	sub customise_for {
		1488	my ($self, $ob) = @_;
		1489
		1490	return find "~" . $ob->name . "/" . $self->{path}
		1491	if $self->per_player;
		1492
		1493	$self
		1494	}
		1495
		1496	# find and load all maps in the 3x3 area around a map
		1497	sub load_diag {
819	my ($map) = @_;	1498	my ($map) = @_;
820		1499
821	my $path = $map->tmpname;	1500	my @diag; # diagonal neighbours
822	defined $path or return;
823		1501
824	unlink "$path.pst";	1502	for (0 .. 3) {
825	};	1503	my $neigh = $map->tile_path ($_)
		1504	or next;
		1505	$neigh = find $neigh, $map
		1506	or next;
		1507	$neigh->load;
826		1508
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1509	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1510	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1511	}
828		1512
829	#############################################################################	1513	for (@diag) {
830	# load/save perl data associated with player->ob objects	1514	my $neigh = find @$_
831		1515	or next;
832	sub all_objects(@) {	1516	$neigh->load;
833	@_, map all_objects ($_->inv), @_	1517	}
834	}	1518	}
835		1519
836	# TODO: compatibility cruft, remove when no longer needed	1520	sub find_sync {
837	cf::player->attach (	1521	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		1522
841	for my $o (all_objects $pl->ob) {	1523	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1524	}
843	$o->set_ob_key_value ("_perl_data");
844		1525
845	%$o = %{ Storable::thaw pack "H*", $value };	1526	sub do_load_sync {
		1527	my ($map) = @_;
		1528
		1529	cf::sync_job { $map->load };
		1530	}
		1531
		1532	our %MAP_PREFETCH;
		1533	our $MAP_PREFETCHER = undef;
		1534
		1535	sub find_async {
		1536	my ($path, $origin) = @_;
		1537
		1538	$path = normalise $path, $origin && $origin->{path};
		1539
		1540	if (my $map = $cf::MAP{$path}) {
		1541	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1542	}
		1543
		1544	undef $MAP_PREFETCH{$path};
		1545	$MAP_PREFETCHER ||= cf::async {
		1546	while (%MAP_PREFETCH) {
		1547	for my $path (keys %MAP_PREFETCH) {
		1548	my $map = find $path
		1549	or next;
		1550	$map->load;
		1551
		1552	delete $MAP_PREFETCH{$path};
846	}	1553	}
847	}	1554	}
		1555	undef $MAP_PREFETCHER;
		1556	};
		1557	$MAP_PREFETCHER->prio (6);
		1558
		1559	()
		1560	}
		1561
		1562	sub save {
		1563	my ($self) = @_;
		1564
		1565	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1566
		1567	$self->{last_save} = $cf::RUNTIME;
		1568
		1569	return unless $self->dirty;
		1570
		1571	my $save = $self->save_path; utf8::encode $save;
		1572	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1573
		1574	$self->{load_path} = $save;
		1575
		1576	return if $self->{deny_save};
		1577
		1578	local $self->{last_access} = $self->last_access;#d#
		1579
		1580	cf::async {
		1581	$_->contr->save for $self->players;
		1582	};
		1583
		1584	if ($uniq) {
		1585	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1586	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1587	} else {
		1588	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	1589	}
849	);	1590	}
850		1591
851	#############################################################################	1592	sub swap_out {
		1593	my ($self) = @_;
852		1594
853	=head2 CORE EXTENSIONS	1595	# save first because save cedes
		1596	$self->save;
854		1597
855	Functions and methods that extend core crossfire objects.	1598	my $lock = cf::lock_acquire "map_data:" . $self->path;
856		1599
857	=head3 cf::player	1600	return if $self->players;
		1601	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1602	return if $self->{deny_save};
		1603
		1604	$self->clear;
		1605	$self->in_memory (cf::MAP_SWAPPED);
		1606	}
		1607
		1608	sub reset_at {
		1609	my ($self) = @_;
		1610
		1611	# TODO: safety, remove and allow resettable per-player maps
		1612	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1613	return 1e99 if $self->{deny_reset};
		1614
		1615	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1616	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1617
		1618	$time + $to
		1619	}
		1620
		1621	sub should_reset {
		1622	my ($self) = @_;
		1623
		1624	$self->reset_at <= $cf::RUNTIME
		1625	}
		1626
		1627	sub reset {
		1628	my ($self) = @_;
		1629
		1630	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1631
		1632	return if $self->players;
		1633	return if $self->isa ("ext::map_per_player");#d#
		1634
		1635	warn "resetting map ", $self->path;#d#
		1636
		1637	$self->in_memory (cf::MAP_SWAPPED);
		1638
		1639	# need to save uniques path
		1640	unless ($self->{deny_save}) {
		1641	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1642
		1643	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1644	if $uniq;
		1645	}
		1646
		1647	delete $cf::MAP{$self->path};
		1648
		1649	$self->clear;
		1650
		1651	$_->clear_links_to ($self) for values %cf::MAP;
		1652
		1653	$self->unlink_save;
		1654	$self->destroy;
		1655	}
		1656
		1657	my $nuke_counter = "aaaa";
		1658
		1659	sub nuke {
		1660	my ($self) = @_;
		1661
		1662	delete $cf::MAP{$self->path};
		1663
		1664	$self->unlink_save;
		1665
		1666	bless $self, "cf::map";
		1667	delete $self->{deny_reset};
		1668	$self->{deny_save} = 1;
		1669	$self->reset_timeout (1);
		1670	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1671
		1672	$cf::MAP{$self->path} = $self;
		1673
		1674	$self->reset; # polite request, might not happen
		1675	}
		1676
		1677	=item cf::map::unique_maps
		1678
		1679	Returns an arrayref of paths of all shared maps that have
		1680	instantiated unique items. May block.
		1681
		1682	=cut
		1683
		1684	sub unique_maps() {
		1685	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1686	or return;
		1687
		1688	my @paths;
		1689
		1690	for (@$files) {
		1691	utf8::decode $_;
		1692	next if /\.pst$/;
		1693	next unless /^$PATH_SEP/o;
		1694
		1695	push @paths, cf::map::normalise $_;
		1696	}
		1697
		1698	\@paths
		1699	}
		1700
		1701	package cf;
		1702
		1703	=back
		1704
		1705	=head3 cf::object
		1706
		1707	=cut
		1708
		1709	package cf::object;
858		1710
859	=over 4	1711	=over 4
860		1712
861	=item cf::player::exists $login	1713	=item $ob->inv_recursive
862		1714
863	Returns true when the given account exists.	1715	Returns the inventory of the object _and_ their inventories, recursively.
864		1716
865	=cut	1717	=cut
866		1718
867	sub cf::player::exists($) {	1719	sub inv_recursive_;
868	cf::player::find $_[0]	1720	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1721	map { $_, inv_recursive_ $_->inv } @_
870	}	1722	}
871		1723
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	1724	sub inv_recursive {
873		1725	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	}	1726	}
		1727
		1728	package cf;
885		1729
886	=back	1730	=back
887		1731
888	=head3 cf::object::player	1732	=head3 cf::object::player
889		1733
…		…
927	(ref $cf::CFG{"may_$access"}	1771	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1772	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	1773	: $cf::CFG{"may_$access"})
930	}	1774	}
931		1775
		1776	=item $player_object->enter_link
		1777
		1778	Freezes the player and moves him/her to a special map (C<{link}>).
		1779
		1780	The player should be reasonably safe there for short amounts of time. You
		1781	I<MUST> call C<leave_link> as soon as possible, though.
		1782
		1783	Will never block.
		1784
		1785	=item $player_object->leave_link ($map, $x, $y)
		1786
		1787	Moves the player out of the special C<{link}> map onto the specified
		1788	map. If the map is not valid (or omitted), the player will be moved back
		1789	to the location he/she was before the call to C<enter_link>, or, if that
		1790	fails, to the emergency map position.
		1791
		1792	Might block.
		1793
		1794	=cut
		1795
		1796	sub link_map {
		1797	unless ($LINK_MAP) {
		1798	$LINK_MAP = cf::map::find "{link}"
		1799	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1800	$LINK_MAP->load;
		1801	}
		1802
		1803	$LINK_MAP
		1804	}
		1805
		1806	sub cf::object::player::enter_link {
		1807	my ($self) = @_;
		1808
		1809	$self->deactivate_recursive;
		1810
		1811	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1812
		1813	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1814	if $self->map;
		1815
		1816	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1817	}
		1818
		1819	sub cf::object::player::leave_link {
		1820	my ($self, $map, $x, $y) = @_;
		1821
		1822	my $link_pos = delete $self->{_link_pos};
		1823
		1824	unless ($map) {
		1825	# restore original map position
		1826	($map, $x, $y) = @{ $link_pos || [] };
		1827	$map = cf::map::find $map;
		1828
		1829	unless ($map) {
		1830	($map, $x, $y) = @$EMERGENCY_POSITION;
		1831	$map = cf::map::find $map
		1832	or die "FATAL: cannot load emergency map\n";
		1833	}
		1834	}
		1835
		1836	($x, $y) = (-1, -1)
		1837	unless (defined $x) && (defined $y);
		1838
		1839	# use -1 or undef as default coordinates, not 0, 0
		1840	($x, $y) = ($map->enter_x, $map->enter_y)
		1841	if $x <=0 && $y <= 0;
		1842
		1843	$map->load;
		1844	$map->load_diag;
		1845
		1846	return unless $self->contr->active;
		1847	$self->activate_recursive;
		1848
		1849	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1850	$self->enter_map ($map, $x, $y);
		1851	}
		1852
		1853	cf::player->attach (
		1854	on_logout => sub {
		1855	my ($pl) = @_;
		1856
		1857	# abort map switching before logout
		1858	if ($pl->ob->{_link_pos}) {
		1859	cf::sync_job {
		1860	$pl->ob->leave_link
		1861	};
		1862	}
		1863	},
		1864	on_login => sub {
		1865	my ($pl) = @_;
		1866
		1867	# try to abort aborted map switching on player login :)
		1868	# should happen only on crashes
		1869	if ($pl->ob->{_link_pos}) {
		1870	$pl->ob->enter_link;
		1871	(async {
		1872	$pl->ob->reply (undef,
		1873	"There was an internal problem at your last logout, "
		1874	. "the server will try to bring you to your intended destination in a second.",
		1875	cf::NDI_RED);
		1876	# we need this sleep as the login has a concurrent enter_exit running
		1877	# and this sleep increases chances of the player not ending up in scorn
		1878	Coro::Timer::sleep 1;
		1879	$pl->ob->leave_link;
		1880	})->prio (2);
		1881	}
		1882	},
		1883	);
		1884
		1885	=item $player_object->goto ($path, $x, $y)
		1886
		1887	=cut
		1888
		1889	sub cf::object::player::goto {
		1890	my ($self, $path, $x, $y) = @_;
		1891
		1892	$self->enter_link;
		1893
		1894	(async {
		1895	my $map = eval {
		1896	my $map = cf::map::find $path;
		1897	$map = $map->customise_for ($self) if $map;
		1898	$map
		1899	} or
		1900	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1901
		1902	$self->leave_link ($map, $x, $y);
		1903	})->prio (1);
		1904	}
		1905
		1906	=item $player_object->enter_exit ($exit_object)
		1907
		1908	=cut
		1909
		1910	sub parse_random_map_params {
		1911	my ($spec) = @_;
		1912
		1913	my $rmp = { # defaults
		1914	xsize => (cf::rndm 15, 40),
		1915	ysize => (cf::rndm 15, 40),
		1916	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1917	#layout => string,
		1918	};
		1919
		1920	for (split /\n/, $spec) {
		1921	my ($k, $v) = split /\s+/, $_, 2;
		1922
		1923	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1924	}
		1925
		1926	$rmp
		1927	}
		1928
		1929	sub prepare_random_map {
		1930	my ($exit) = @_;
		1931
		1932	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1933
		1934	# all this does is basically replace the /! path by
		1935	# a new random map path (?random/...) with a seed
		1936	# that depends on the exit object
		1937
		1938	my $rmp = parse_random_map_params $exit->msg;
		1939
		1940	if ($exit->map) {
		1941	$rmp->{region} = $exit->region->name;
		1942	$rmp->{origin_map} = $exit->map->path;
		1943	$rmp->{origin_x} = $exit->x;
		1944	$rmp->{origin_y} = $exit->y;
		1945	}
		1946
		1947	$rmp->{random_seed} ||= $exit->random_seed;
		1948
		1949	my $data = cf::to_json $rmp;
		1950	my $md5 = Digest::MD5::md5_hex $data;
		1951	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1952
		1953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1954	aio_write $fh, 0, (length $data), $data, 0;
		1955	undef $fh;
		1956	aio_rename "$meta~", $meta;
		1957
		1958	$exit->slaying ("?random/$md5");
		1959	$exit->msg (undef);
		1960	}
		1961	}
		1962
		1963	sub cf::object::player::enter_exit {
		1964	my ($self, $exit) = @_;
		1965
		1966	return unless $self->type == cf::PLAYER;
		1967
		1968	if ($exit->slaying eq "/!") {
		1969	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1970	# the problem is that $exit might not survive long enough
		1971	# so it needs to be done right now, right here
		1972	cf::sync_job { prepare_random_map $exit };
		1973	}
		1974
		1975	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1976	my $hp = $exit->stats->hp;
		1977	my $sp = $exit->stats->sp;
		1978
		1979	$self->enter_link;
		1980
		1981	(async {
		1982	$self->deactivate_recursive; # just to be sure
		1983	unless (eval {
		1984	$self->goto ($slaying, $hp, $sp);
		1985
		1986	1;
		1987	}) {
		1988	$self->message ("Something went wrong deep within the crossfire server. "
		1989	. "I'll try to bring you back to the map you were before. "
		1990	. "Please report this to the dungeon master!",
		1991	cf::NDI_UNIQUE | cf::NDI_RED);
		1992
		1993	warn "ERROR in enter_exit: $@";
		1994	$self->leave_link;
		1995	}
		1996	})->prio (1);
		1997	}
		1998
932	=head3 cf::client	1999	=head3 cf::client
933		2000
934	=over 4	2001	=over 4
935		2002
936	=item $client->send_drawinfo ($text, $flags)	2003	=item $client->send_drawinfo ($text, $flags)
…		…
942		2009
943	sub cf::client::send_drawinfo {	2010	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2011	my ($self, $text, $flags) = @_;
945		2012
946	utf8::encode $text;	2013	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2014	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2015	}
949		2016
		2017	=item $client->ext_event ($type, %msg)
		2018
		2019	Sends an exti event to the client.
		2020
		2021	=cut
		2022
		2023	sub cf::client::ext_event($$%) {
		2024	my ($self, $type, %msg) = @_;
		2025
		2026	$msg{msgtype} = "event_$type";
		2027	$self->send_packet ("ext " . cf::to_json \%msg);
		2028	}
950		2029
951	=item $success = $client->query ($flags, "text", \&cb)	2030	=item $success = $client->query ($flags, "text", \&cb)
952		2031
953	Queues a query to the client, calling the given callback with	2032	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2033	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
979	on_reply => sub {	2058	on_reply => sub {
980	my ($ns, $msg) = @_;	2059	my ($ns, $msg) = @_;
981		2060
982	# this weird shuffling is so that direct followup queries	2061	# this weird shuffling is so that direct followup queries
983	# get handled first	2062	# get handled first
984	my $queue = delete $ns->{query_queue};	2063	my $queue = delete $ns->{query_queue}
		2064	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2065
986	(shift @$queue)->[1]->($msg);	2066	(shift @$queue)->[1]->($msg);
		2067	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2068
988	push @{ $ns->{query_queue} }, @$queue;	2069	push @{ $ns->{query_queue} }, @$queue;
989		2070
990	if (@{ $ns->{query_queue} } == @$queue) {	2071	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2072	if (@$queue) {
…		…
995	}	2076	}
996	}	2077	}
997	},	2078	},
998	);	2079	);
999		2080
1000	=item $client->coro (\&cb)	2081	=item $client->async (\&cb)
1001		2082
1002	Create a new coroutine, running the specified callback. The coroutine will	2083	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2084	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2085	or loss of connection).
1005		2086
1006	=cut	2087	=cut
1007		2088
1008	sub cf::client::coro {	2089	sub cf::client::async {
1009	my ($self, $cb) = @_;	2090	my ($self, $cb) = @_;
1010		2091
1011	my $coro; $coro = async {	2092	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2093
1018	$coro->on_destroy (sub {	2094	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2095	delete $self->{_coro}{$coro+0};
1020	});	2096	});
1021		2097
…		…
1054		2130
1055	# here we export the classes and methods available to script code	2131	# here we export the classes and methods available to script code
1056		2132
1057	=pod	2133	=pod
1058		2134
1059	The following fucntions and emthods are available within a safe environment:	2135	The following functions and methods are available within a safe environment:
1060		2136
1061	cf::object contr pay_amount pay_player map	2137	cf::object contr pay_amount pay_player map
1062	cf::object::player player	2138	cf::object::player player
1063	cf::player peaceful	2139	cf::player peaceful
1064	cf::map trigger	2140	cf::map trigger
…		…
1157	The parameter C<$family> should best start with the name of the extension	2233	The parameter C<$family> should best start with the name of the extension
1158	using it, it should be unique.	2234	using it, it should be unique.
1159		2235
1160	=over 4	2236	=over 4
1161		2237
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	2238	=item $value = cf::db_get $family => $key
1169		2239
1170	Returns a single value from the database	2240	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		2241
1177	=item cf::db_put $family => $key => $value	2242	=item cf::db_put $family => $key => $value
1178		2243
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	2244	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		2245
1190	=cut	2246	=cut
1191		2247
1192	our $DB;	2248	our $DB;
1193		2249
1194	{	2250	sub db_init {
		2251	unless ($DB) {
		2252	$DB = BDB::db_create $DB_ENV;
		2253
		2254	cf::sync_job {
		2255	eval {
		2256	$DB->set_flags (BDB::CHKSUM);
		2257
		2258	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2259	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2260	cf::cleanup "db_open(db): $!" if $!;
		2261	};
		2262	cf::cleanup "db_open(db): $@" if $@;
		2263	};
		2264
1195	my $path = cf::localdir . "/database.pst";	2265	my $path = cf::localdir . "/database.pst";
		2266	if (stat $path) {
		2267	cf::sync_job {
		2268	my $pst = Storable::retrieve $path;
1196		2269
1197	sub db_load() {	2270	cf::db_put (board => data => $pst->{board});
1198	warn "loading database $path\n";#d# remove later	2271	cf::db_put (guildrules => data => $pst->{guildrules});
1199	$DB = stat $path ? Storable::retrieve $path : { };	2272	cf::db_put (rent => balance => $pst->{rent}{balance});
1200	}	2273	BDB::db_env_txn_checkpoint $DB_ENV;
1201		2274
1202	my $pid;	2275	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	}	2276	};
1213	}	2277	}
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	});	2278	}
		2279	}
1225		2280
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {	2281	sub db_get($$) {
1232	@_ >= 2	2282	my $key = "$_[0]/$_[1]";
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236		2283
		2284	cf::sync_job {
		2285	BDB::db_get $DB, undef, $key, my $data;
		2286
		2287	$! ? ()
		2288	: Compress::LZF::sthaw $data
		2289	}
		2290	}
		2291
1237	sub db_put($$;$) {	2292	sub db_put($$$) {
1238	if (@_ >= 3) {	2293	BDB::dbreq_pri 4;
1239	$DB->{$_[0]}{$_[1]} = $_[2];	2294	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
		2295	}
		2296
		2297	#############################################################################
		2298	# the server's init and main functions
		2299
		2300	sub load_facedata {
		2301	my $path = sprintf "%s/facedata", cf::datadir;
		2302
		2303	warn "loading facedata from $path\n";
		2304
		2305	my $faces;
		2306	0 < aio_load $path, $faces
		2307	or die "$path: $!";
		2308
		2309	Coro::cede;
		2310	$faces = Storable::thaw $faces;
		2311	Coro::cede;
		2312
		2313	my $meta = delete $faces->{""};
		2314	$meta->{version} == 1
		2315	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2316
		2317	while (my ($face, $info) = each %$faces) {
		2318	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2319	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2320	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2321	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2322	Coro::cede;
		2323	}
		2324
		2325	while (my ($face, $info) = each %$faces) {
		2326	next unless $info->{smooth};
		2327	my $idx = cf::face::find $face
		2328	or next;
		2329	if (my $smooth = cf::face::find $info->{smooth}) {
		2330	cf::face::set_smooth $idx, $smooth;
1240	} else {	2331	} else {
1241	$DB->{$_[0]} = $_[1];	2332	warn "smooth face '$info->{smooth}' not found for face '$face'";
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	2333	}
1251	);	2334	Coro::cede;
1252	}	2335	}
1253		2336
1254	#############################################################################	2337	1
1255	# the server's main()	2338	}
		2339
		2340	sub reload_resources {
		2341	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2342	or die "unable to load regions file\n";#d#
		2343	load_facedata
		2344	or die "unable to load facedata\n";#d#
		2345	}
		2346
		2347	sub init {
		2348	reload_resources;
		2349	}
1256		2350
1257	sub cfg_load {	2351	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	2352	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;	2353	or return;
1260		2354
1261	local $/;	2355	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	2356	*CFG = YAML::Syck::Load <$fh>;
		2357
		2358	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2359
		2360	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2361	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2362
		2363	if (exists $CFG{mlockall}) {
		2364	eval {
		2365	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2366	and die "WARNING: m(un)lockall failed: $!\n";
		2367	};
		2368	warn $@ if $@;
		2369	}
1263	}	2370	}
1264		2371
1265	sub main {	2372	sub main {
		2373	# we must not ever block the main coroutine
		2374	local $Coro::idle = sub {
		2375	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2376	(async {
		2377	Event::one_event;
		2378	})->prio (Coro::PRIO_MAX);
		2379	};
		2380
1266	cfg_load;	2381	cfg_load;
1267	db_load;	2382	db_init;
1268	load_extensions;	2383	load_extensions;
		2384
		2385	$TICK_WATCHER->start;
1269	Event::loop;	2386	Event::loop;
1270	}	2387	}
1271		2388
1272	#############################################################################	2389	#############################################################################
1273	# initialisation	2390	# initialisation and cleanup
1274		2391
		2392	# install some emergency cleanup handlers
		2393	BEGIN {
		2394	for my $signal (qw(INT HUP TERM)) {
		2395	Event->signal (
		2396	reentrant => 0,
		2397	data => WF_AUTOCANCEL,
		2398	signal => $signal,
		2399	prio => 0,
		2400	cb => sub {
		2401	cf::cleanup "SIG$signal";
		2402	},
		2403	);
		2404	}
		2405	}
		2406
		2407	sub emergency_save() {
		2408	my $freeze_guard = cf::freeze_mainloop;
		2409
		2410	warn "enter emergency perl save\n";
		2411
		2412	cf::sync_job {
		2413	# use a peculiar iteration method to avoid tripping on perl
		2414	# refcount bugs in for. also avoids problems with players
		2415	# and maps saved/destroyed asynchronously.
		2416	warn "begin emergency player save\n";
		2417	for my $login (keys %cf::PLAYER) {
		2418	my $pl = $cf::PLAYER{$login} or next;
		2419	$pl->valid or next;
		2420	$pl->save;
		2421	}
		2422	warn "end emergency player save\n";
		2423
		2424	warn "begin emergency map save\n";
		2425	for my $path (keys %cf::MAP) {
		2426	my $map = $cf::MAP{$path} or next;
		2427	$map->valid or next;
		2428	$map->save;
		2429	}
		2430	warn "end emergency map save\n";
		2431
		2432	warn "begin emergency database checkpoint\n";
		2433	BDB::db_env_txn_checkpoint $DB_ENV;
		2434	warn "end emergency database checkpoint\n";
		2435	};
		2436
		2437	warn "leave emergency perl save\n";
		2438	}
		2439
		2440	sub post_cleanup {
		2441	my ($make_core) = @_;
		2442
		2443	warn Carp::longmess "post_cleanup backtrace"
		2444	if $make_core;
		2445	}
		2446
1275	sub _perl_reload() {	2447	sub reload() {
		2448	# can/must only be called in main
		2449	if ($Coro::current != $Coro::main) {
		2450	warn "can only reload from main coroutine";
		2451	return;
		2452	}
		2453
1276	warn "reloading...";	2454	warn "reloading...";
1277		2455
1278	eval {	2456	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		2457
		2458	cf::sync_job {
		2459	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	2460	cf::emergency_save;
		2461	cf::write_runtime; # external watchdog should not bark
1282		2462
1283	# cancel all watchers	2463	warn "syncing database to disk";
		2464	BDB::db_env_txn_checkpoint $DB_ENV;
		2465
		2466	# if anything goes wrong in here, we should simply crash as we already saved
		2467
		2468	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	2469	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	2470	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	2471	}
1287		2472
		2473	warn "flushing outstanding aio requests";
		2474	for (;;) {
		2475	BDB::flush;
		2476	IO::AIO::flush;
		2477	Coro::cede;
		2478	last unless IO::AIO::nreqs || BDB::nreqs;
		2479	warn "iterate...";
		2480	}
		2481
		2482	++$RELOAD;
		2483
1288	# cancel all extension coros	2484	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	2485	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	2486	%EXT_CORO = ();
1291		2487
1292	# unload all extensions	2488	warn "removing commands";
1293	for (@exts) {	2489	%COMMAND = ();
		2490
		2491	warn "removing ext commands";
		2492	%EXTCMD = ();
		2493
		2494	warn "unloading/nuking all extensions";
		2495	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	2496	warn "... unloading $pkg";
1295	unload_extension $_;	2497
		2498	if (my $cb = $pkg->can ("unload")) {
		2499	eval {
		2500	$cb->($pkg);
		2501	1
		2502	} or warn "$pkg unloaded, but with errors: $@";
1296	}	2503	}
1297		2504
		2505	warn "... nuking $pkg";
		2506	Symbol::delete_package $pkg;
		2507	}
		2508
1298	# unload all modules loaded from $LIBDIR	2509	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	2510	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2511	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		2512
1302	warn "removing <$k>";	2513	warn "... unloading $k";
1303	delete $INC{$k};	2514	delete $INC{$k};
1304		2515
1305	$k =~ s/\.pm$//;	2516	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	2517	$k =~ s/\//::/g;
1307		2518
…		…
1310	}	2521	}
1311		2522
1312	Symbol::delete_package $k;	2523	Symbol::delete_package $k;
1313	}	2524	}
1314		2525
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	2526	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	2527	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2528	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		2529
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	2530	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	2531	delete $INC{"cf.pm"};
1328		2532
1329	# don't, removes xs symbols, too,	2533	# don't, removes xs symbols, too,
1330	# and global variables created in xs	2534	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	2535	#Symbol::delete_package __PACKAGE__;
1332		2536
1333	# reload cf.pm	2537	warn "unload completed, starting to reload now";
		2538
1334	warn "reloading cf.pm";	2539	warn "reloading cf.pm";
1335	require cf;	2540	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2541	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		2542
1338	# load config and database again	2543	warn "loading config and database again";
1339	cf::cfg_load;	2544	cf::cfg_load;
1340	cf::db_load;
1341		2545
1342	# load extensions
1343	warn "load extensions";	2546	warn "loading extensions";
1344	cf::load_extensions;	2547	cf::load_extensions;
1345		2548
1346	# reattach attachments to objects	2549	warn "reattaching attachments to objects/players";
1347	warn "reattach";	2550	_global_reattach; # objects, sockets
1348	_global_reattach;	2551	warn "reattaching attachments to maps";
		2552	reattach $_ for values %MAP;
		2553	warn "reattaching attachments to players";
		2554	reattach $_ for values %PLAYER;
		2555
		2556	warn "loading reloadable resources";
		2557	reload_resources;
		2558
		2559	warn "leaving sync_job";
		2560
		2561	1
		2562	} or do {
		2563	warn $@;
		2564	warn "error while reloading, exiting.";
		2565	exit 1;
1349	};	2566	};
1350	warn $@ if $@;
1351		2567
1352	warn "reloaded";	2568	warn "reloaded";
1353	};	2569	};
1354		2570
1355	sub perl_reload() {	2571	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		2572
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {	2573	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	2574	my ($who, $arg) = @_;
1363		2575
1364	if ($who->flag (FLAG_WIZ)) {	2576	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	2577	$who->message ("reloading server.");
1366	_perl_reload;	2578
		2579	# doing reload synchronously and two reloads happen back-to-back,
		2580	# coro crashes during coro_state_free->destroy here.
		2581
		2582	$RELOAD_WATCHER ||= Event->timer (
		2583	reentrant => 0,
		2584	after => 0,
		2585	data => WF_AUTOCANCEL,
		2586	cb => sub {
		2587	reload;
		2588	undef $RELOAD_WATCHER;
		2589	},
		2590	);
1367	}	2591	}
1368	};	2592	};
1369		2593
1370	unshift @INC, $LIBDIR;	2594	unshift @INC, $LIBDIR;
		2595
		2596	my $bug_warning = 0;
1371		2597
1372	$TICK_WATCHER = Event->timer (	2598	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	2599	reentrant => 0,
		2600	parked => 1,
1374	prio => 0,	2601	prio => 0,
1375	at => $NEXT_TICK || $TICK,	2602	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	2603	data => WF_AUTOCANCEL,
1377	cb => sub {	2604	cb => sub {
1378	unless ($FREEZE) {	2605	if ($Coro::current != $Coro::main) {
		2606	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2607	unless ++$bug_warning > 10;
		2608	return;
		2609	}
		2610
		2611	$NOW = Event::time;
		2612
1379	cf::server_tick; # one server iteration	2613	cf::server_tick; # one server iteration
1380	$RUNTIME += $TICK;	2614	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	2615	$NEXT_TICK += $TICK;
		2616
		2617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2619	Coro::async_pool {
		2620	write_runtime
		2621	or warn "ERROR: unable to write runtime file: $!";
		2622	};
		2623	}
		2624
		2625	$WAIT_FOR_TICK->broadcast;
		2626	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2627
		2628	# my $AFTER = Event::time;
		2629	# warn $AFTER - $NOW;#d#
1384		2630
1385	# if we are delayed by four ticks or more, skip them all	2631	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2632	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387		2633
1388	$TICK_WATCHER->at ($NEXT_TICK);	2634	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	2635	$TICK_WATCHER->start;
1390	},	2636	},
1391	);	2637	);
1392		2638
		2639	{
		2640	BDB::max_poll_time $TICK * 0.1;
		2641	$BDB_POLL_WATCHER = Event->io (
		2642	reentrant => 0,
		2643	fd => BDB::poll_fileno,
		2644	poll => 'r',
		2645	prio => 0,
		2646	data => WF_AUTOCANCEL,
		2647	cb => \&BDB::poll_cb,
		2648	);
		2649	BDB::min_parallel 8;
		2650
		2651	BDB::set_sync_prepare {
		2652	my $status;
		2653	my $current = $Coro::current;
		2654	(
		2655	sub {
		2656	$status = $!;
		2657	$current->ready; undef $current;
		2658	},
		2659	sub {
		2660	Coro::schedule while defined $current;
		2661	$! = $status;
		2662	},
		2663	)
		2664	};
		2665
		2666	unless ($DB_ENV) {
		2667	$DB_ENV = BDB::db_env_create;
		2668
		2669	cf::sync_job {
		2670	eval {
		2671	BDB::db_env_open
		2672	$DB_ENV,
		2673	$BDB_ENV_DIR,
		2674	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2675	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2676	0666;
		2677
		2678	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2679
		2680	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2681	$DB_ENV->set_lk_detect;
		2682	};
		2683
		2684	cf::cleanup "db_env_open(db): $@" if $@;
		2685	};
		2686	}
		2687	}
		2688
		2689	{
		2690	IO::AIO::min_parallel 8;
		2691
		2692	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	2693	IO::AIO::max_poll_time $TICK * 0.1;
1394		2694	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	2695	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	2696	data => WF_AUTOCANCEL,
		2697	fd => IO::AIO::poll_fileno,
		2698	poll => 'r',
		2699	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	2700	cb => \&IO::AIO::poll_cb,
		2701	);
		2702	}
1400		2703
1401	# we must not ever block the main coroutine	2704	END { cf::emergency_save }
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		2705
1410	1	2706	1
1411		2707

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