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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.107 by root, Sun Dec 31 18:10:40 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;
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	226
176	JSON::Syck::Dump $_[0]	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} }, $Coro::current;
		247	Coro::schedule;
		248	}
177	}	249	}
		250
		251	sub lock_acquire($) {
		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	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
178		284
179	=item cf::sync_job { BLOCK }	285	=item cf::sync_job { BLOCK }
180		286
181	The design of crossfire+ requires that the main coro ($Coro::main) is	287	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	288	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	296	=cut
191		297
192	sub sync_job(&) {	298	sub sync_job(&) {
193	my ($job) = @_;	299	my ($job) = @_;
194		300
195	my $busy = 1;
196	my @res;
197
198	# TODO: use suspend/resume instead
199	local $FREEZE = 1;
200
201	my $coro = Coro::async {
202	@res = eval { $job->() };
203	warn $@ if $@;
204	undef $busy;
205	};
206
207	if ($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;
208	$coro->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
		317
209	while ($busy) {	318	while ($busy) {
210	Coro::cede_notself;	319	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	320	}
		321
		322	wantarray ? @res : $res[0]
213	} else {	323	} else {
214	$coro->join;	324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
215	}	327	}
216
217	wantarray ? @res : $res[0]
218	}	328	}
219		329
220	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
221		331
222	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
224		334
225	=cut	335	=cut
226		336
227	sub coro(&) {	337	sub async_ext(&) {
228	my $cb = shift;	338	my $cb = shift;
229		339
230	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		341
237	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
239	});	344	});
240	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
241		346
242	$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 });
243	}	387	}
244		388
245	=back	389	=back
246		390
247	=cut	391	=cut
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	522	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	523	our @CB_MAP = ();
380		524
381	my %attachment;	525	my %attachment;
382		526
		527	sub cf::attachable::thawer_merge {
		528	# simply override everything except _meta
		529	local $_[0]{_meta};
		530	%{$_[0]} = %{$_[1]};
		531	}
		532
383	sub _attach_cb($$$$) {	533	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	534	my ($registry, $event, $prio, $cb) = @_;
385		535
386	use sort 'stable';	536	use sort 'stable';
387		537
…		…
558	# object support	708	# object support
559		709
560	sub reattach {	710	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	711	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	712	my ($obj) = @_;
		713
		714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		715
564	my $registry = $obj->registry;	716	my $registry = $obj->registry;
565		717
566	@$registry = ();	718	@$registry = ();
567		719
…		…
614	$filename, length $$rdata, scalar @$objs;	766	$filename, length $$rdata, scalar @$objs;
615		767
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	769	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	771	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	772	close $fh;
621		773
622	if (@$objs) {	774	if (@$objs) {
623	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) {
624	chmod SAVE_MODE, $fh;	776	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	777	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	778	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	779	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	780	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	781	aio_rename "$filename.pst~", "$filename.pst";
630	}	782	}
631	} else {	783	} else {
632	aio_unlink "$filename.pst";	784	aio_unlink "$filename.pst";
…		…
660	or return;	812	or return;
661		813
662	unless (aio_stat "$filename.pst") {	814	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	815	(aio_load "$filename.pst", $av) >= 0
664	or return;	816	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	817	$av = eval { (Storable::thaw $av)->{objs} };
666	}	818	}
667		819
		820	warn sprintf "loading %s (%d)\n",
		821	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	822	return ($data, $av);
669	}	823	}
670		824
671	#############################################################################	825	#############################################################################
672	# command handling &c	826	# command handling &c
…		…
697	=cut	851	=cut
698		852
699	sub register_extcmd {	853	sub register_extcmd {
700	my ($name, $cb) = @_;	854	my ($name, $cb) = @_;
701		855
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	856	$EXTCMD{$name} = $cb;
706	}	857	}
707		858
708	cf::player->attach (	859	cf::player->attach (
709	on_command => sub {	860	on_command => sub {
710	my ($pl, $name, $params) = @_;	861	my ($pl, $name, $params) = @_;
…		…
723		874
724	my $msg = eval { from_json $buf };	875	my $msg = eval { from_json $buf };
725		876
726	if (ref $msg) {	877	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	879	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	880	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	881	}
731	}	882	}
732	} else {	883	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		886
736	cf::override;	887	cf::override;
737	},	888	},
738	);	889	);
739		890
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	891	sub load_extension {
747	my ($path) = @_;	892	my ($path) = @_;
748		893
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	895	my $base = $1;
751	my $pkg = $1;	896	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	897	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	898	$pkg = "ext::$pkg";
754		899
755	warn "loading '$path' into '$pkg'\n";	900	warn "... loading '$path' into '$pkg'\n";
756		901
757	open my $fh, "<:utf8", $path	902	open my $fh, "<:utf8", $path
758	or die "$path: $!";	903	or die "$path: $!";
759		904
760	my $source =	905	my $source =
761	"package $pkg; use strict; use utf8;\n"	906	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"	907	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })	908	. (do { local $/; <$fh> })
764	. "\n};\n1";	909	. "\n};\n1";
765		910
766	eval $source	911	unless (eval $source) {
767	or die $@ ? "$path: $@\n"	912	my $msg = $@ ? "$path: $@\n"
768	: "extension disabled.\n";	913	: "extension disabled.\n";
769		914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
770	push @exts, $pkg;	915	warn $@;
771	$ext_pkg{$base} = $pkg;	916	warn "mandatory extension failed to load, exiting.\n";
772		917	exit 1;
773	# no strict 'refs';	918	}
774	# @{"$pkg\::ISA"} = ext::;	919	die $@;
775
776	register $base, $pkg;
777	}
778
779	sub unload_extension {
780	my ($pkg) = @_;
781
782	warn "removing extension $pkg\n";
783
784	# remove hooks
785	#TODO
786	# for my $idx (0 .. $#PLUGIN_EVENT) {
787	# delete $hook[$idx]{$pkg};
788	# }	920	}
789		921
790	# remove commands	922	push @EXTS, $pkg;
791	for my $name (keys %COMMAND) {
792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
793
794	if (@cb) {
795	$COMMAND{$name} = \@cb;
796	} else {
797	delete $COMMAND{$name};
798	}
799	}
800
801	# remove extcmds
802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
803	delete $EXTCMD{$name};
804	}
805
806	if (my $cb = $pkg->can ("unload")) {
807	eval {
808	$cb->($pkg);
809	1
810	} or warn "$pkg unloaded, but with errors: $@";
811	}
812
813	Symbol::delete_package $pkg;
814	}	923	}
815		924
816	sub load_extensions {	925	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	926	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	927	next unless -r $ext;
…		…
822	} or warn "$ext not loaded: $@";	931	} or warn "$ext not loaded: $@";
823	}	932	}
824	}	933	}
825		934
826	#############################################################################	935	#############################################################################
827	# load/save/clean perl data associated with a map
828		936
829	*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 {
830	my ($map) = @_;	1502	my ($map) = @_;
831		1503
832	my $path = $map->tmpname;	1504	my @diag; # diagonal neighbours
833	defined $path or return;
834		1505
835	unlink "$path.pst";	1506	for (0 .. 3) {
836	};	1507	my $neigh = $map->tile_path ($_)
		1508	or next;
		1509	$neigh = find $neigh, $map
		1510	or next;
		1511	$neigh->load;
837		1512
838	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	}
839		1516
840	#############################################################################	1517	for (@diag) {
841	# load/save perl data associated with player->ob objects	1518	my $neigh = find @$_
842		1519	or next;
843	sub all_objects(@) {	1520	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1521	}
845	}	1522	}
846		1523
847	# TODO: compatibility cruft, remove when no longer needed	1524	sub find_sync {
848	cf::player->attach (	1525	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1526
852	for my $o (all_objects $pl->ob) {	1527	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1528	}
854	$o->set_ob_key_value ("_perl_data");
855		1529
856	%$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};
857	}	1557	}
858	}	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);
859	},	1593	}
860	);	1594	}
861		1595
862	#############################################################################	1596	sub swap_out {
		1597	my ($self) = @_;
863		1598
864	=head2 CORE EXTENSIONS	1599	# save first because save cedes
		1600	$self->save;
865		1601
866	Functions and methods that extend core crossfire objects.	1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		1603
868	=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;
869		1714
870	=over 4	1715	=over 4
871		1716
872	=item cf::player::exists $login	1717	=item $ob->inv_recursive
873		1718
874	Returns true when the given account exists.	1719	Returns the inventory of the object _and_ their inventories, recursively.
875		1720
876	=cut	1721	=cut
877		1722
878	sub cf::player::exists($) {	1723	sub inv_recursive_;
879	cf::player::find $_[0]	1724	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1725	map { $_, inv_recursive_ $_->inv } @_
881	}	1726	}
882		1727
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1728	sub inv_recursive {
884		1729	inv_recursive_ inv $_[0]
885	Sends an ext reply to the player.
886
887	=cut
888
889	sub cf::player::ext_reply($$$%) {
890	my ($self, $id, %msg) = @_;
891
892	$msg{msgid} = $id;
893
894	$self->send ("ext " . to_json \%msg);
895	}	1730	}
		1731
		1732	package cf;
896		1733
897	=back	1734	=back
898		1735
899	=head3 cf::object::player	1736	=head3 cf::object::player
900		1737
…		…
938	(ref $cf::CFG{"may_$access"}	1775	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1776	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1777	: $cf::CFG{"may_$access"})
941	}	1778	}
942		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
943	=head3 cf::client	2001	=head3 cf::client
944		2002
945	=over 4	2003	=over 4
946		2004
947	=item $client->send_drawinfo ($text, $flags)	2005	=item $client->send_drawinfo ($text, $flags)
…		…
953		2011
954	sub cf::client::send_drawinfo {	2012	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2013	my ($self, $text, $flags) = @_;
956		2014
957	utf8::encode $text;	2015	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2016	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2017	}
960		2018
961		2019
962	=item $success = $client->query ($flags, "text", \&cb)	2020	=item $success = $client->query ($flags, "text", \&cb)
963		2021
…		…
990	on_reply => sub {	2048	on_reply => sub {
991	my ($ns, $msg) = @_;	2049	my ($ns, $msg) = @_;
992		2050
993	# this weird shuffling is so that direct followup queries	2051	# this weird shuffling is so that direct followup queries
994	# get handled first	2052	# get handled first
995	my $queue = delete $ns->{query_queue};	2053	my $queue = delete $ns->{query_queue}
		2054	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2055
997	(shift @$queue)->[1]->($msg);	2056	(shift @$queue)->[1]->($msg);
		2057	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2058
999	push @{ $ns->{query_queue} }, @$queue;	2059	push @{ $ns->{query_queue} }, @$queue;
1000		2060
1001	if (@{ $ns->{query_queue} } == @$queue) {	2061	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2062	if (@$queue) {
…		…
1006	}	2066	}
1007	}	2067	}
1008	},	2068	},
1009	);	2069	);
1010		2070
1011	=item $client->coro (\&cb)	2071	=item $client->async (\&cb)
1012		2072
1013	Create a new coroutine, running the specified callback. The coroutine will	2073	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2074	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2075	or loss of connection).
1016		2076
1017	=cut	2077	=cut
1018		2078
1019	sub cf::client::coro {	2079	sub cf::client::async {
1020	my ($self, $cb) = @_;	2080	my ($self, $cb) = @_;
1021		2081
1022	my $coro; $coro = async {	2082	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2083
1029	$coro->on_destroy (sub {	2084	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2085	delete $self->{_coro}{$coro+0};
1031	});	2086	});
1032		2087
…		…
1065		2120
1066	# here we export the classes and methods available to script code	2121	# here we export the classes and methods available to script code
1067		2122
1068	=pod	2123	=pod
1069		2124
1070	The following fucntions and emthods are available within a safe environment:	2125	The following functions and methods are available within a safe environment:
1071		2126
1072	cf::object contr pay_amount pay_player map	2127	cf::object contr pay_amount pay_player map
1073	cf::object::player player	2128	cf::object::player player
1074	cf::player peaceful	2129	cf::player peaceful
1075	cf::map trigger	2130	cf::map trigger
…		…
1168	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
1169	using it, it should be unique.	2224	using it, it should be unique.
1170		2225
1171	=over 4	2226	=over 4
1172		2227
1173	=item $hashref = cf::db_get $family
1174
1175	Return a hashref for use by the extension C<$family>, which can be
1176	modified. After modifications, you have to call C<cf::db_dirty> or
1177	C<cf::db_sync>.
1178
1179	=item $value = cf::db_get $family => $key	2228	=item $value = cf::db_get $family => $key
1180		2229
1181	Returns a single value from the database	2230	Returns a single value from the database.
1182
1183	=item cf::db_put $family => $hashref
1184
1185	Stores the given family hashref into the database. Updates are delayed, if
1186	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1187		2231
1188	=item cf::db_put $family => $key => $value	2232	=item cf::db_put $family => $key => $value
1189		2233
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you	2234	Stores the given C<$value> in the family.
1191	want the data to be synced to disk immediately, use C<cf::db_sync>.
1192
1193	=item cf::db_dirty
1194
1195	Marks the database as dirty, to be updated at a later time.
1196
1197	=item cf::db_sync
1198
1199	Immediately write the database to disk I<if it is dirty>.
1200		2235
1201	=cut	2236	=cut
1202		2237
1203	our $DB;	2238	our $DB;
1204		2239
1205	{	2240	sub db_init {
		2241	unless ($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
1206	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;
1207		2259
1208	sub db_load() {	2260	cf::db_put (board => data => $pst->{board});
1209	warn "loading database $path\n";#d# remove later	2261	cf::db_put (guildrules => data => $pst->{guildrules});
1210	$DB = stat $path ? Storable::retrieve $path : { };	2262	cf::db_put (rent => balance => $pst->{rent}{balance});
1211	}	2263	BDB::db_env_txn_checkpoint $DB_ENV;
1212		2264
1213	my $pid;	2265	unlink $path;
1214
1215	sub db_save() {
1216	warn "saving database $path\n";#d# remove later
1217	waitpid $pid, 0 if $pid;
1218	if (0 == ($pid = fork)) {
1219	$DB->{_meta}{version} = 1;
1220	Storable::nstore $DB, "$path~";
1221	rename "$path~", $path;
1222	cf::_exit 0 if defined $pid;
1223	}	2266	};
1224	}	2267	}
1225
1226	my $dirty;
1227
1228	sub db_sync() {
1229	db_save if $dirty;
1230	undef $dirty;
1231	}
1232
1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1234	db_sync;
1235	});	2268	}
		2269	}
1236		2270
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}
1241
1242	sub db_get($;$) {	2271	sub db_get($$) {
1243	@_ >= 2	2272	my $key = "$_[0]/$_[1]";
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247		2273
		2274	cf::sync_job {
		2275	BDB::db_get $DB, undef, $key, my $data;
		2276
		2277	$! ? ()
		2278	: Compress::LZF::sthaw $data
		2279	}
		2280	}
		2281
1248	sub db_put($$;$) {	2282	sub db_put($$$) {
1249	if (@_ >= 3) {	2283	BDB::dbreq_pri 4;
1250	$DB->{$_[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;
1251	} else {	2321	} else {
1252	$DB->{$_[0]} = $_[1];	2322	warn "smooth face '$info->{smooth}' not found for face '$face'";
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2323	}
1262	);	2324	Coro::cede;
1263	}	2325	}
1264		2326
1265	#############################################################################	2327	1
1266	# 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	}
1267		2340
1268	sub cfg_load {	2341	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2342	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2343	or return;
1271		2344
1272	local $/;	2345	local $/;
1273	*CFG = YAML::Syck::Load <$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	}
1274	}	2360	}
1275		2361
1276	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
1277	cfg_load;	2371	cfg_load;
1278	db_load;	2372	db_init;
1279	load_extensions;	2373	load_extensions;
		2374
		2375	$TICK_WATCHER->start;
1280	Event::loop;	2376	Event::loop;
1281	}	2377	}
1282		2378
1283	#############################################################################	2379	#############################################################################
1284	# initialisation	2380	# initialisation and cleanup
1285		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 $make_core;
		2435	}
		2436
1286	sub perl_reload() {	2437	sub reload() {
1287	# can/must only be called in main	2438	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2439	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2440	warn "can only reload from main coroutine";
1290	return;	2441	return;
1291	}	2442	}
1292		2443
1293	warn "reloading...";	2444	warn "reloading...";
1294		2445
1295	local $FREEZE = 1;	2446	warn "entering sync_job";
		2447
		2448	cf::sync_job {
		2449	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	2450	cf::emergency_save;
		2451	cf::write_runtime; # external watchdog should not bark
1297		2452
1298	eval {	2453	warn "syncing database to disk";
		2454	BDB::db_env_txn_checkpoint $DB_ENV;
		2455
1299	# if anything goes wrong in here, we should simply crash as we already saved	2456	# if anything goes wrong in here, we should simply crash as we already saved
1300		2457
1301	# cancel all watchers	2458	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2459	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2460	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2461	}
1305		2462
		2463	warn "flushing outstanding aio requests";
		2464	for (;;) {
		2465	BDB::flush;
		2466	IO::AIO::flush;
		2467	Coro::cede;
		2468	last unless IO::AIO::nreqs || BDB::nreqs;
		2469	warn "iterate...";
		2470	}
		2471
		2472	++$RELOAD;
		2473
1306	# cancel all extension coros	2474	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2475	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2476	%EXT_CORO = ();
1309		2477
1310	# unload all extensions	2478	warn "removing commands";
1311	for (@exts) {	2479	%COMMAND = ();
		2480
		2481	warn "removing ext commands";
		2482	%EXTCMD = ();
		2483
		2484	warn "unloading/nuking all extensions";
		2485	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2486	warn "... unloading $pkg";
1313	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: $@";
1314	}	2493	}
1315		2494
		2495	warn "... nuking $pkg";
		2496	Symbol::delete_package $pkg;
		2497	}
		2498
1316	# unload all modules loaded from $LIBDIR	2499	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2500	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2501	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2502
1320	warn "removing <$k>";	2503	warn "... unloading $k";
1321	delete $INC{$k};	2504	delete $INC{$k};
1322		2505
1323	$k =~ s/\.pm$//;	2506	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2507	$k =~ s/\//::/g;
1325		2508
…		…
1328	}	2511	}
1329		2512
1330	Symbol::delete_package $k;	2513	Symbol::delete_package $k;
1331	}	2514	}
1332		2515
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2516	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2517	Symbol::delete_package "safe::$_"
1339	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);
1340		2519
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2520	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2521	delete $INC{"cf.pm"};
1346		2522
1347	# don't, removes xs symbols, too,	2523	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2524	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2525	#Symbol::delete_package __PACKAGE__;
1350		2526
1351	# reload cf.pm	2527	warn "unload completed, starting to reload now";
		2528
1352	warn "reloading cf.pm";	2529	warn "reloading cf.pm";
1353	require cf;	2530	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2531	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2532
1356	# load config and database again	2533	warn "loading config and database again";
1357	cf::cfg_load;	2534	cf::cfg_load;
1358	cf::db_load;
1359		2535
1360	# load extensions
1361	warn "load extensions";	2536	warn "loading extensions";
1362	cf::load_extensions;	2537	cf::load_extensions;
1363		2538
1364	# reattach attachments to objects	2539	warn "reattaching attachments to objects/players";
1365	warn "reattach";	2540	_global_reattach; # objects, sockets
1366	_global_reattach;	2541	warn "reattaching attachments to maps";
1367	};	2542	reattach $_ for values %MAP;
		2543	warn "reattaching attachments to players";
		2544	reattach $_ for values %PLAYER;
1368		2545
1369	if ($@) {	2546	warn "loading reloadable resources";
		2547	reload_resources;
		2548
		2549	warn "leaving sync_job";
		2550
		2551	1
		2552	} or do {
1370	warn $@;	2553	warn $@;
1371	warn "error while reloading, exiting.";	2554	warn "error while reloading, exiting.";
1372	exit 1;	2555	exit 1;
1373	}	2556	};
1374		2557
1375	warn "reloaded successfully";	2558	warn "reloaded";
1376	};	2559	};
1377		2560
1378	register "<global>", __PACKAGE__;	2561	our $RELOAD_WATCHER; # used only during reload
1379		2562
1380	register_command "perl-reload" => sub {	2563	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	2564	my ($who, $arg) = @_;
1382		2565
1383	if ($who->flag (FLAG_WIZ)) {	2566	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	2567	$who->message ("reloading server.");
		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	);
1387	}	2581	}
1388	};	2582	};
1389		2583
1390	unshift @INC, $LIBDIR;	2584	unshift @INC, $LIBDIR;
		2585
		2586	my $bug_warning = 0;
1391		2587
1392	$TICK_WATCHER = Event->timer (	2588	$TICK_WATCHER = Event->timer (
1393	reentrant => 0,	2589	reentrant => 0,
		2590	parked => 1,
1394	prio => 0,	2591	prio => 0,
1395	at => $NEXT_TICK || $TICK,	2592	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	2593	data => WF_AUTOCANCEL,
1397	cb => sub {	2594	cb => sub {
1398	unless ($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
1399	cf::server_tick; # one server iteration	2603	cf::server_tick; # one server iteration
1400	$RUNTIME += $TICK;	2604	$RUNTIME += $TICK;
1401	}
1402
1403	$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#
1404		2620
1405	# 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
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2622	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407		2623
1408	$TICK_WATCHER->at ($NEXT_TICK);	2624	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;	2625	$TICK_WATCHER->start;
1410	},	2626	},
1411	);	2627	);
1412		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;
1413	IO::AIO::max_poll_time $TICK * 0.2;	2683	IO::AIO::max_poll_time $TICK * 0.1;
1414		2684	$AIO_POLL_WATCHER = Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	2685	reentrant => 0,
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,	2686	data => WF_AUTOCANCEL,
		2687	fd => IO::AIO::poll_fileno,
		2688	poll => 'r',
		2689	prio => 6,
1419	cb => \&IO::AIO::poll_cb);	2690	cb => \&IO::AIO::poll_cb,
		2691	);
		2692	}
1420		2693
1421	# we must not ever block the main coroutine	2694	END { cf::emergency_save }
1422	$Coro::idle = sub {
1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1424	warn "FATAL: Coro::idle was called, major BUG\n";
1425	(Coro::unblock_sub {
1426	Event::one_event;
1427	})->();
1428	};
1429		2695
1430	1	2696	1
1431		2697

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