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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 1.245 by root, Tue Apr 17 10:06:33 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 3.61 ();
		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;
		21	use Coro::Storable;
19		22
		23	use BDB ();
		24	use Data::Dumper;
		25	use Digest::MD5;
20	use Fcntl;	26	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	27	use YAML::Syck ();
		28	use IO::AIO 2.32 ();
23	use Time::HiRes;	29	use Time::HiRes;
		30	use Compress::LZF;
24		31
		32	# configure various modules to our taste
		33	#
		34	$Storable::canonical = 1; # reduce rsync transfers
		35	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		36	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		37
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	$Event::Eval = 1; # no idea why this is required, but it is
26		39
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	40	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
28	$YAML::Syck::ImplicitUnicode = 1;	41	$YAML::Syck::ImplicitUnicode = 1;
29		42
30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	43	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
31		44
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	45	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		46
34	our %COMMAND = ();	47	our %COMMAND = ();
35	our %COMMAND_TIME = ();	48	our %COMMAND_TIME = ();
		49
		50	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	51	our %EXTCMD = ();
		52	our %EXT_CORO = (); # coroutines bound to extensions
		53	our %EXT_MAP = (); # pluggable maps
37		54
		55	our $RELOAD; # number of reloads so far
38	our @EVENT;	56	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	57	our $LIBDIR = datadir . "/ext";
40		58
41	our $TICK = MAX_TIME * 1e-6;	59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
42	our $TICK_WATCHER;	60	our $TICK_WATCHER;
		61	our $AIO_POLL_WATCHER;
		62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	63	our $NEXT_TICK;
44	our $NOW;	64	our $NOW;
		65	our $USE_FSYNC = 1; # use fsync to write maps - default off
		66
		67	our $BDB_POLL_WATCHER;
		68	our $DB_ENV;
45		69
46	our %CFG;	70	our %CFG;
47		71
48	our $UPTIME; $UPTIME ||= time;	72	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	73	our $RUNTIME;
50		74
		75	our %PLAYER; # all users
51	our %MAP; # all maps	76	our %MAP; # all maps
52	our $LINK_MAP; # the special {link} map	77	our $LINK_MAP; # the special {link} map, which is always available
53	our $FREEZE;	78	our $RANDOM_MAPS = cf::localdir . "/random";
		79	our $BDB_ENV_DIR = cf::localdir . "/db";
		80
		81	# used to convert map paths into valid unix filenames by replacing / by ∕
		82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
54		83
55	binmode STDOUT;	84	binmode STDOUT;
56	binmode STDERR;	85	binmode STDERR;
57		86
58	# read virtual server time, if available	87	# read virtual server time, if available
…		…
64		93
65	mkdir cf::localdir;	94	mkdir cf::localdir;
66	mkdir cf::localdir . "/" . cf::playerdir;	95	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;	96	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;	97	mkdir cf::localdir . "/" . cf::uniquedir;
		98	mkdir $RANDOM_MAPS;
		99	mkdir $BDB_ENV_DIR;
69		100
70	our %EXT_CORO;	101	our $EMERGENCY_POSITION;
		102
		103	sub cf::map::normalise;
71		104
72	#############################################################################	105	#############################################################################
73		106
74	=head2 GLOBAL VARIABLES	107	=head2 GLOBAL VARIABLES
75		108
…		…
99		132
100	=item %cf::CFG	133	=item %cf::CFG
101		134
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	135	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	136	from wherever your confdir points to.
		137
		138	=item cf::wait_for_tick, cf::wait_for_tick_begin
		139
		140	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		141	returns directly I<after> the tick processing (and consequently, can only wake one process
		142	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
104		143
105	=back	144	=back
106		145
107	=cut	146	=cut
108		147
…		…
112	utf8::encode $msg;	151	utf8::encode $msg;
113		152
114	$msg .= "\n"	153	$msg .= "\n"
115	unless $msg =~ /\n$/;	154	unless $msg =~ /\n$/;
116		155
117	LOG llevError, "cfperl: $msg";	156	LOG llevError, $msg;
118	};	157	};
119	}	158	}
120		159
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
140		179
141	$Event::DIED = sub {	180	$Event::DIED = sub {
142	warn "error in event callback: @_";	181	warn "error in event callback: @_";
143	};	182	};
144		183
145	my %ext_pkg;
146	my @exts;
147	my @hook;
148
149	=head2 UTILITY FUNCTIONS	184	=head2 UTILITY FUNCTIONS
150		185
151	=over 4	186	=over 4
152		187
153	=cut	188	=item dumpval $ref
154		189
		190	=cut
		191
		192	sub dumpval {
		193	eval {
		194	local $SIG{__DIE__};
		195	my $d;
		196	if (1) {
		197	$d = new Data::Dumper([$_[0]], ["*var"]);
		198	$d->Terse(1);
		199	$d->Indent(2);
		200	$d->Quotekeys(0);
		201	$d->Useqq(1);
		202	#$d->Bless(...);
		203	$d->Seen($_[1]) if @_ > 1;
		204	$d = $d->Dump();
		205	}
		206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		207	$d
		208	} || "[unable to dump $_[0]: '$@']";
		209	}
		210
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
156		212
157	=item $ref = cf::from_json $json	213	=item $ref = cf::from_json $json
158		214
159	Converts a JSON string into the corresponding perl data structure.	215	Converts a JSON string into the corresponding perl data structure.
160		216
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	217	=item $json = cf::to_json $ref
169		218
170	Converts a perl data structure into its JSON representation.	219	Converts a perl data structure into its JSON representation.
171		220
172	=cut	221	=item cf::lock_wait $string
173		222
174	sub to_json($) {	223	Wait until the given lock is available. See cf::lock_acquire.
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224
176	JSON::Syck::Dump $_[0]	225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
177	}	247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	};
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
178		282
179	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
180		284
181	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
182	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
190	=cut	294	=cut
191		295
192	sub sync_job(&) {	296	sub sync_job(&) {
193	my ($job) = @_;	297	my ($job) = @_;
194		298
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 == $Coro::main) {	299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
208	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
209	while ($busy) {	316	while ($busy) {
210	Coro::cede_notself;	317	Coro::cede or Event::one_event;
211	Event::one_event unless Coro::nready;
212	}	318	}
		319
		320	wantarray ? @res : $res[0]
213	} else {	321	} else {
214	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
215	}	325	}
216
217	wantarray ? @res : $res[0]
218	}	326	}
219		327
220	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
221		329
222	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
223	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
224		332
225	=cut	333	=cut
226		334
227	sub coro(&) {	335	sub async_ext(&) {
228	my $cb = shift;	336	my $cb = shift;
229		337
230	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
231	eval {
232	$cb->();
233	};
234	warn $@ if $@;
235	};
236		339
237	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
238	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
239	});	342	});
240	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
241		344
242	$coro	345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $guard = cf::lock_acquire "write_runtime";
		350
		351	my $runtime = cf::localdir . "/runtime";
		352
		353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		354	or return;
		355
		356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
		360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		361	and return;
		362
		363	# always fsync - this file is important
		364	aio_fsync $fh
		365	and return;
		366
		367	close $fh
		368	or return;
		369
		370	aio_rename "$runtime~", $runtime
		371	and return;
		372
		373	1
		374	}
		375
		376	=item cf::datalog type => key => value, ...
		377
		378	Log a datalog packet of the given type with the given key-value pairs.
		379
		380	=cut
		381
		382	sub datalog($@) {
		383	my ($type, %kv) = @_;
		384	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
243	}	385	}
244		386
245	=back	387	=back
246		388
247	=cut	389	=cut
…		…
378	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
379	our @CB_MAP = ();	521	our @CB_MAP = ();
380		522
381	my %attachment;	523	my %attachment;
382		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
383	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
384	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
385		533
386	use sort 'stable';	534	use sort 'stable';
387		535
…		…
558	# object support	706	# object support
559		707
560	sub reattach {	708	sub reattach {
561	# basically do the same as instantiate, without calling instantiate	709	# basically do the same as instantiate, without calling instantiate
562	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
563		713
564	my $registry = $obj->registry;	714	my $registry = $obj->registry;
565		715
566	@$registry = ();	716	@$registry = ();
567		717
…		…
614	$filename, length $$rdata, scalar @$objs;	764	$filename, length $$rdata, scalar @$objs;
615		765
616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
617	chmod SAVE_MODE, $fh;	767	chmod SAVE_MODE, $fh;
618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
619	aio_fsync $fh;	769	aio_fsync $fh if $cf::USE_FSYNC;
620	close $fh;	770	close $fh;
621		771
622	if (@$objs) {	772	if (@$objs) {
623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
624	chmod SAVE_MODE, $fh;	774	chmod SAVE_MODE, $fh;
625	my $data = Storable::nfreeze { version => 1, objs => $objs };	775	my $data = Storable::nfreeze { version => 1, objs => $objs };
626	aio_write $fh, 0, (length $data), $data, 0;	776	aio_write $fh, 0, (length $data), $data, 0;
627	aio_fsync $fh;	777	aio_fsync $fh if $cf::USE_FSYNC;
628	close $fh;	778	close $fh;
629	aio_rename "$filename.pst~", "$filename.pst";	779	aio_rename "$filename.pst~", "$filename.pst";
630	}	780	}
631	} else {	781	} else {
632	aio_unlink "$filename.pst";	782	aio_unlink "$filename.pst";
…		…
660	or return;	810	or return;
661		811
662	unless (aio_stat "$filename.pst") {	812	unless (aio_stat "$filename.pst") {
663	(aio_load "$filename.pst", $av) >= 0	813	(aio_load "$filename.pst", $av) >= 0
664	or return;	814	or return;
665	$av = eval { (Storable::thaw <$av>)->{objs} };	815	$av = eval { (Storable::thaw $av)->{objs} };
666	}	816	}
667		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
668	return ($data, $av);	820	return ($data, $av);
669	}	821	}
670		822
671	#############################################################################	823	#############################################################################
672	# command handling &c	824	# command handling &c
…		…
697	=cut	849	=cut
698		850
699	sub register_extcmd {	851	sub register_extcmd {
700	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
701		853
702	my $caller = caller;
703	#warn "registering extcmd '$name' to '$caller'";
704
705	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
706	}	855	}
707		856
708	cf::player->attach (	857	cf::player->attach (
709	on_command => sub {	858	on_command => sub {
710	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
723		872
724	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
725		874
726	if (ref $msg) {	875	if (ref $msg) {
727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
728	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
729	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
730	}	879	}
731	}	880	}
732	} else {	881	} else {
733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
735		884
736	cf::override;	885	cf::override;
737	},	886	},
738	);	887	);
739		888
740	sub register {
741	my ($base, $pkg) = @_;
742
743	#TODO
744	}
745
746	sub load_extension {	889	sub load_extension {
747	my ($path) = @_;	890	my ($path) = @_;
748		891
749	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
750	my $base = $1;	893	my $base = $1;
751	my $pkg = $1;	894	my $pkg = $1;
752	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
753	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
754		897
755	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
756		899
757	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
758	or die "$path: $!";	901	or die "$path: $!";
759		902
760	my $source =	903	my $source =
761	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
762	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
763	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
764	. "\n};\n1";	907	. "\n};\n1";
765		908
766	eval $source	909	unless (eval $source) {
767	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
768	: "extension disabled.\n";	911	: "extension disabled.\n";
769		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
770	push @exts, $pkg;	913	warn $@;
771	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
772		915	exit 1;
773	# no strict 'refs';	916	}
774	# @{"$pkg\::ISA"} = ext::;	917	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	# }	918	}
789		919
790	# remove commands	920	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	}	921	}
815		922
816	sub load_extensions {	923	sub load_extensions {
817	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
818	next unless -r $ext;	925	next unless -r $ext;
…		…
822	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
823	}	930	}
824	}	931	}
825		932
826	#############################################################################	933	#############################################################################
827	# load/save/clean perl data associated with a map
828		934
829	*cf::mapsupport::on_clean = sub {	935	=head2 CORE EXTENSIONS
		936
		937	Functions and methods that extend core crossfire objects.
		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
		945	=head3 cf::player
		946
		947	=over 4
		948
		949	=item cf::player::find $login
		950
		951	Returns the given player object, loading it if necessary (might block).
		952
		953	=cut
		954
		955	sub playerdir($) {
		956	cf::localdir
		957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/playerdata"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	# rename old playerfiles to new ones
		990	#TODO: remove when no longer required
		991	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		992	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		993	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		994	aio_unlink +(playerdir $login) . "/$login.pl";
		995
		996	my $pl = load_pl path $login
		997	or return;
		998	$cf::PLAYER{$login} = $pl
		999	}
		1000	}
		1001	}
		1002
		1003	sub save($) {
		1004	my ($pl) = @_;
		1005
		1006	return if $pl->{deny_save};
		1007
		1008	my $path = path $pl;
		1009	my $guard = cf::lock_acquire "user_save:$path";
		1010
		1011	return if $pl->{deny_save};
		1012
		1013	aio_mkdir playerdir $pl, 0770;
		1014	$pl->{last_save} = $cf::RUNTIME;
		1015
		1016	$pl->save_pl ($path);
		1017	Coro::cede;
		1018	}
		1019
		1020	sub new($) {
		1021	my ($login) = @_;
		1022
		1023	my $self = create;
		1024
		1025	$self->ob->name ($login);
		1026	$self->{deny_save} = 1;
		1027
		1028	$cf::PLAYER{$login} = $self;
		1029
		1030	$self
		1031	}
		1032
		1033	=item $pl->quit_character
		1034
		1035	Nukes the player without looking back. If logged in, the connection will
		1036	be destroyed. May block for a long time.
		1037
		1038	=cut
		1039
		1040	sub quit_character {
		1041	my ($pl) = @_;
		1042
		1043	my $name = $pl->ob->name;
		1044
		1045	$pl->{deny_save} = 1;
		1046	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1047
		1048	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1049	$pl->deactivate;
		1050	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1051	$pl->ns->destroy if $pl->ns;
		1052
		1053	my $path = playerdir $pl;
		1054	my $temp = "$path~$cf::RUNTIME~deleting~";
		1055	aio_rename $path, $temp;
		1056	delete $cf::PLAYER{$pl->ob->name};
		1057	$pl->destroy;
		1058
		1059	my $prefix = qr<^~\Q$name\E/>;
		1060
		1061	# nuke player maps
		1062	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1063
		1064	IO::AIO::aio_rmtree $temp;
		1065	}
		1066
		1067	=item $pl->kick
		1068
		1069	Kicks a player out of the game. This destroys the connection.
		1070
		1071	=cut
		1072
		1073	sub kick {
		1074	my ($pl, $kicker) = @_;
		1075
		1076	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1077	$pl->killer ("kicked");
		1078	$pl->ns->destroy;
		1079	}
		1080
		1081	=item cf::player::list_logins
		1082
		1083	Returns am arrayref of all valid playernames in the system, can take a
		1084	while and may block, so not sync_job-capable, ever.
		1085
		1086	=cut
		1087
		1088	sub list_logins {
		1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1090	or return [];
		1091
		1092	my @logins;
		1093
		1094	for my $login (@$dirs) {
		1095	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1096	aio_read $fh, 0, 512, my $buf, 0 or next;
		1097	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1098
		1099	utf8::decode $login;
		1100	push @logins, $login;
		1101	}
		1102
		1103	\@logins
		1104	}
		1105
		1106	=item $player->maps
		1107
		1108	Returns an arrayref of map paths that are private for this
		1109	player. May block.
		1110
		1111	=cut
		1112
		1113	sub maps($) {
		1114	my ($pl) = @_;
		1115
		1116	$pl = ref $pl ? $pl->ob->name : $pl;
		1117
		1118	my $files = aio_readdir playerdir $pl
		1119	or return;
		1120
		1121	my @paths;
		1122
		1123	for (@$files) {
		1124	utf8::decode $_;
		1125	next if /\.(?:pl|pst)$/;
		1126	next unless /^$PATH_SEP/o;
		1127
		1128	push @paths, cf::map::normalise "~$pl/$_";
		1129	}
		1130
		1131	\@paths
		1132	}
		1133
		1134	=item $player->ext_reply ($msgid, %msg)
		1135
		1136	Sends an ext reply to the player.
		1137
		1138	=cut
		1139
		1140	sub ext_reply($$%) {
		1141	my ($self, $id, %msg) = @_;
		1142
		1143	$msg{msgid} = $id;
		1144
		1145	$self->send ("ext " . cf::to_json \%msg);
		1146	}
		1147
		1148	=item $player->ext_event ($type, %msg)
		1149
		1150	Sends an ext event to the client.
		1151
		1152	=cut
		1153
		1154	sub ext_event($$%) {
		1155	my ($self, $type, %msg) = @_;
		1156
		1157	$self->ns->ext_event ($type, %msg);
		1158	}
		1159
		1160	=head3 cf::region
		1161
		1162	=over 4
		1163
		1164	=cut
		1165
		1166	package cf::region;
		1167
		1168	=item cf::region::find_by_path $path
		1169
		1170	Tries to decuce the probable region for a map knowing only its path.
		1171
		1172	=cut
		1173
		1174	sub find_by_path($) {
		1175	my ($path) = @_;
		1176
		1177	my ($match, $specificity);
		1178
		1179	for my $region (list) {
		1180	if ($region->match && $path =~ $region->match) {
		1181	($match, $specificity) = ($region, $region->specificity)
		1182	if $region->specificity > $specificity;
		1183	}
		1184	}
		1185
		1186	$match
		1187	}
		1188
		1189	=back
		1190
		1191	=head3 cf::map
		1192
		1193	=over 4
		1194
		1195	=cut
		1196
		1197	package cf::map;
		1198
		1199	use Fcntl;
		1200	use Coro::AIO;
		1201
		1202	use overload
		1203	'""' => \&as_string,
		1204	fallback => 1;
		1205
		1206	our $MAX_RESET = 3600;
		1207	our $DEFAULT_RESET = 3000;
		1208
		1209	sub generate_random_map {
		1210	my ($self, $rmp) = @_;
		1211	# mit "rum" bekleckern, nicht
		1212	$self->_create_random_map (
		1213	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1214	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1215	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1216	$rmp->{exit_on_final_map},
		1217	$rmp->{xsize}, $rmp->{ysize},
		1218	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1219	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1220	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1221	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1222	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1223	(cf::region::find $rmp->{region}), $rmp->{custom}
		1224	)
		1225	}
		1226
		1227	=item cf::map->register ($regex, $prio)
		1228
		1229	Register a handler for the map path matching the given regex at the
		1230	givne priority (higher is better, built-in handlers have priority 0, the
		1231	default).
		1232
		1233	=cut
		1234
		1235	sub register {
		1236	my (undef, $regex, $prio) = @_;
		1237	my $pkg = caller;
		1238
		1239	no strict;
		1240	push @{"$pkg\::ISA"}, __PACKAGE__;
		1241
		1242	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1243	}
		1244
		1245	# also paths starting with '/'
		1246	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1247
		1248	sub thawer_merge {
		1249	my ($self, $merge) = @_;
		1250
		1251	# we have to keep some variables in memory intact
		1252	local $self->{path};
		1253	local $self->{load_path};
		1254	local $self->{deny_save};
		1255	local $self->{deny_reset};
		1256
		1257	$self->SUPER::thawer_merge ($merge);
		1258	}
		1259
		1260	sub normalise {
		1261	my ($path, $base) = @_;
		1262
		1263	$path = "$path"; # make sure its a string
		1264
		1265	$path =~ s/\.map$//;
		1266
		1267	# map plan:
		1268	#
		1269	# /! non-realised random map exit (special hack!)
		1270	# {... are special paths that are not being touched
		1271	# ?xxx/... are special absolute paths
		1272	# ?random/... random maps
		1273	# /... normal maps
		1274	# ~user/... per-player map of a specific user
		1275
		1276	$path =~ s/$PATH_SEP/\//go;
		1277
		1278	# treat it as relative path if it starts with
		1279	# something that looks reasonable
		1280	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1281	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1282
		1283	$base =~ s{[^/]+/?$}{};
		1284	$path = "$base/$path";
		1285	}
		1286
		1287	for ($path) {
		1288	redo if s{//}{/};
		1289	redo if s{/\.?/}{/};
		1290	redo if s{/[^/]+/\.\./}{/};
		1291	}
		1292
		1293	$path
		1294	}
		1295
		1296	sub new_from_path {
		1297	my (undef, $path, $base) = @_;
		1298
		1299	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1300
		1301	$path = normalise $path, $base;
		1302
		1303	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1304	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1305	my $self = bless cf::map::new, $pkg;
		1306	$self->{path} = $path; $self->path ($path);
		1307	$self->init; # pass $1 etc.
		1308	return $self;
		1309	}
		1310	}
		1311
		1312	Carp::carp "unable to resolve path '$path' (base '$base').";
		1313	()
		1314	}
		1315
		1316	sub init {
		1317	my ($self) = @_;
		1318
		1319	$self
		1320	}
		1321
		1322	sub as_string {
		1323	my ($self) = @_;
		1324
		1325	"$self->{path}"
		1326	}
		1327
		1328	# the displayed name, this is a one way mapping
		1329	sub visible_name {
		1330	&as_string
		1331	}
		1332
		1333	# the original (read-only) location
		1334	sub load_path {
		1335	my ($self) = @_;
		1336
		1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1338	}
		1339
		1340	# the temporary/swap location
		1341	sub save_path {
		1342	my ($self) = @_;
		1343
		1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1346	}
		1347
		1348	# the unique path, undef == no special unique path
		1349	sub uniq_path {
		1350	my ($self) = @_;
		1351
		1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1354	}
		1355
		1356	# and all this just because we cannot iterate over
		1357	# all maps in C++...
		1358	sub change_all_map_light {
		1359	my ($change) = @_;
		1360
		1361	$_->change_map_light ($change)
		1362	for grep $_->outdoor, values %cf::MAP;
		1363	}
		1364
		1365	sub unlink_save {
		1366	my ($self) = @_;
		1367
		1368	utf8::encode (my $save = $self->save_path);
		1369	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1370	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1371	}
		1372
		1373	sub load_header_from($) {
		1374	my ($self, $path) = @_;
		1375
		1376	utf8::encode $path;
		1377	#aio_open $path, O_RDONLY, 0
		1378	# or return;
		1379
		1380	$self->_load_header ($path)
		1381	or return;
		1382
		1383	$self->{load_path} = $path;
		1384
		1385	1
		1386	}
		1387
		1388	sub load_header_orig {
		1389	my ($self) = @_;
		1390
		1391	$self->load_header_from ($self->load_path)
		1392	}
		1393
		1394	sub load_header_temp {
		1395	my ($self) = @_;
		1396
		1397	$self->load_header_from ($self->save_path)
		1398	}
		1399
		1400	sub prepare_temp {
		1401	my ($self) = @_;
		1402
		1403	$self->last_access ((delete $self->{last_access})
		1404	|| $cf::RUNTIME); #d#
		1405	# safety
		1406	$self->{instantiate_time} = $cf::RUNTIME
		1407	if $self->{instantiate_time} > $cf::RUNTIME;
		1408	}
		1409
		1410	sub prepare_orig {
		1411	my ($self) = @_;
		1412
		1413	$self->{load_original} = 1;
		1414	$self->{instantiate_time} = $cf::RUNTIME;
		1415	$self->last_access ($cf::RUNTIME);
		1416	$self->instantiate;
		1417	}
		1418
		1419	sub load_header {
		1420	my ($self) = @_;
		1421
		1422	if ($self->load_header_temp) {
		1423	$self->prepare_temp;
		1424	} else {
		1425	$self->load_header_orig
		1426	or return;
		1427	$self->prepare_orig;
		1428	}
		1429
		1430	$self->default_region (cf::region::find_by_path $self->{path})
		1431	unless $self->default_region;
		1432
		1433	1
		1434	}
		1435
		1436	sub find;
		1437	sub find {
		1438	my ($path, $origin) = @_;
		1439
		1440	$path = normalise $path, $origin && $origin->path;
		1441
		1442	cf::lock_wait "map_find:$path";
		1443
		1444	$cf::MAP{$path} || do {
		1445	my $guard = cf::lock_acquire "map_find:$path";
		1446	my $map = new_from_path cf::map $path
		1447	or return;
		1448
		1449	$map->{last_save} = $cf::RUNTIME;
		1450
		1451	$map->load_header
		1452	or return;
		1453
		1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1455	# doing this can freeze the server in a sync job, obviously
		1456	#$cf::WAIT_FOR_TICK->wait;
		1457	$map->reset;
		1458	undef $guard;
		1459	return find $path;
		1460	}
		1461
		1462	$cf::MAP{$path} = $map
		1463	}
		1464	}
		1465
		1466	sub pre_load { }
		1467	sub post_load { }
		1468
		1469	sub load {
		1470	my ($self) = @_;
		1471
		1472	local $self->{deny_reset} = 1; # loading can take a long time
		1473
		1474	my $path = $self->{path};
		1475	my $guard = cf::lock_acquire "map_load:$path";
		1476
		1477	return if $self->in_memory != cf::MAP_SWAPPED;
		1478
		1479	$self->in_memory (cf::MAP_LOADING);
		1480
		1481	$self->alloc;
		1482
		1483	$self->pre_load;
		1484	Coro::cede;
		1485
		1486	$self->_load_objects ($self->{load_path}, 1)
		1487	or return;
		1488
		1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1490	if delete $self->{load_original};
		1491
		1492	if (my $uniq = $self->uniq_path) {
		1493	utf8::encode $uniq;
		1494	if (aio_open $uniq, O_RDONLY, 0) {
		1495	$self->clear_unique_items;
		1496	$self->_load_objects ($uniq, 0);
		1497	}
		1498	}
		1499
		1500	Coro::cede;
		1501	# now do the right thing for maps
		1502	$self->link_multipart_objects;
		1503	Coro::cede;
		1504
		1505	unless ($self->{deny_activate}) {
		1506	$self->decay_objects;
		1507	$self->fix_auto_apply;
		1508	$self->update_buttons;
		1509	Coro::cede;
		1510	$self->set_darkness_map;
		1511	$self->difficulty ($self->estimate_difficulty)
		1512	unless $self->difficulty;
		1513	Coro::cede;
		1514	$self->activate;
		1515	Coro::cede;
		1516	}
		1517
		1518	$self->post_load;
		1519	Coro::cede;
		1520
		1521	$self->in_memory (cf::MAP_IN_MEMORY);
		1522	}
		1523
		1524	sub customise_for {
		1525	my ($self, $ob) = @_;
		1526
		1527	return find "~" . $ob->name . "/" . $self->{path}
		1528	if $self->per_player;
		1529
		1530	$self
		1531	}
		1532
		1533	# find and load all maps in the 3x3 area around a map
		1534	sub load_diag {
830	my ($map) = @_;	1535	my ($map) = @_;
831		1536
832	my $path = $map->tmpname;	1537	my @diag; # diagonal neighbours
833	defined $path or return;
834		1538
835	unlink "$path.pst";	1539	for (0 .. 3) {
836	};	1540	my $neigh = $map->tile_path ($_)
		1541	or next;
		1542	$neigh = find $neigh, $map
		1543	or next;
		1544	$neigh->load;
837		1545
838	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1546	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1547	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1548	}
839		1549
840	#############################################################################	1550	for (@diag) {
841	# load/save perl data associated with player->ob objects	1551	my $neigh = find @$_
842		1552	or next;
843	sub all_objects(@) {	1553	$neigh->load;
844	@_, map all_objects ($_->inv), @_	1554	}
845	}	1555	}
846		1556
847	# TODO: compatibility cruft, remove when no longer needed	1557	sub find_sync {
848	cf::player->attach (	1558	my ($path, $origin) = @_;
849	on_load => sub {
850	my ($pl, $path) = @_;
851		1559
852	for my $o (all_objects $pl->ob) {	1560	cf::sync_job { find $path, $origin }
853	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1561	}
854	$o->set_ob_key_value ("_perl_data");
855		1562
856	%$o = %{ Storable::thaw pack "H*", $value };	1563	sub do_load_sync {
		1564	my ($map) = @_;
		1565
		1566	cf::sync_job { $map->load };
		1567	}
		1568
		1569	our %MAP_PREFETCH;
		1570	our $MAP_PREFETCHER = undef;
		1571
		1572	sub find_async {
		1573	my ($path, $origin) = @_;
		1574
		1575	$path = normalise $path, $origin && $origin->{path};
		1576
		1577	if (my $map = $cf::MAP{$path}) {
		1578	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1579	}
		1580
		1581	undef $MAP_PREFETCH{$path};
		1582	$MAP_PREFETCHER ||= cf::async {
		1583	while (%MAP_PREFETCH) {
		1584	for my $path (keys %MAP_PREFETCH) {
		1585	my $map = find $path
		1586	or next;
		1587	$map->load;
		1588
		1589	delete $MAP_PREFETCH{$path};
857	}	1590	}
858	}	1591	}
		1592	undef $MAP_PREFETCHER;
		1593	};
		1594	$MAP_PREFETCHER->prio (6);
		1595
		1596	()
		1597	}
		1598
		1599	sub save {
		1600	my ($self) = @_;
		1601
		1602	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1603
		1604	$self->{last_save} = $cf::RUNTIME;
		1605
		1606	return unless $self->dirty;
		1607
		1608	my $save = $self->save_path; utf8::encode $save;
		1609	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1610
		1611	$self->{load_path} = $save;
		1612
		1613	return if $self->{deny_save};
		1614
		1615	local $self->{last_access} = $self->last_access;#d#
		1616
		1617	cf::async {
		1618	$_->contr->save for $self->players;
		1619	};
		1620
		1621	if ($uniq) {
		1622	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1623	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1624	} else {
		1625	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
859	},	1626	}
860	);	1627	}
861		1628
862	#############################################################################	1629	sub swap_out {
		1630	my ($self) = @_;
863		1631
864	=head2 CORE EXTENSIONS	1632	# save first because save cedes
		1633	$self->save;
865		1634
866	Functions and methods that extend core crossfire objects.	1635	my $lock = cf::lock_acquire "map_data:" . $self->path;
867		1636
868	=head3 cf::player	1637	return if $self->players;
		1638	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1639	return if $self->{deny_save};
		1640
		1641	$self->clear;
		1642	$self->in_memory (cf::MAP_SWAPPED);
		1643	}
		1644
		1645	sub reset_at {
		1646	my ($self) = @_;
		1647
		1648	# TODO: safety, remove and allow resettable per-player maps
		1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1650	return 1e99 if $self->{deny_reset};
		1651
		1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1654
		1655	$time + $to
		1656	}
		1657
		1658	sub should_reset {
		1659	my ($self) = @_;
		1660
		1661	$self->reset_at <= $cf::RUNTIME
		1662	}
		1663
		1664	sub reset {
		1665	my ($self) = @_;
		1666
		1667	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1668
		1669	return if $self->players;
		1670	return if $self->isa ("ext::map_per_player");#d#
		1671
		1672	warn "resetting map ", $self->path;#d#
		1673
		1674	$self->in_memory (cf::MAP_SWAPPED);
		1675
		1676	# need to save uniques path
		1677	unless ($self->{deny_save}) {
		1678	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1679
		1680	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1681	if $uniq;
		1682	}
		1683
		1684	delete $cf::MAP{$self->path};
		1685
		1686	$self->clear;
		1687
		1688	$_->clear_links_to ($self) for values %cf::MAP;
		1689
		1690	$self->unlink_save;
		1691	$self->destroy;
		1692	}
		1693
		1694	my $nuke_counter = "aaaa";
		1695
		1696	sub nuke {
		1697	my ($self) = @_;
		1698
		1699	delete $cf::MAP{$self->path};
		1700
		1701	$self->unlink_save;
		1702
		1703	bless $self, "cf::map";
		1704	delete $self->{deny_reset};
		1705	$self->{deny_save} = 1;
		1706	$self->reset_timeout (1);
		1707	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1708
		1709	$cf::MAP{$self->path} = $self;
		1710
		1711	$self->reset; # polite request, might not happen
		1712	}
		1713
		1714	=item cf::map::unique_maps
		1715
		1716	Returns an arrayref of paths of all shared maps that have
		1717	instantiated unique items. May block.
		1718
		1719	=cut
		1720
		1721	sub unique_maps() {
		1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1723	or return;
		1724
		1725	my @paths;
		1726
		1727	for (@$files) {
		1728	utf8::decode $_;
		1729	next if /\.pst$/;
		1730	next unless /^$PATH_SEP/o;
		1731
		1732	push @paths, cf::map::normalise $_;
		1733	}
		1734
		1735	\@paths
		1736	}
		1737
		1738	package cf;
		1739
		1740	=back
		1741
		1742	=head3 cf::object
		1743
		1744	=cut
		1745
		1746	package cf::object;
869		1747
870	=over 4	1748	=over 4
871		1749
872	=item cf::player::exists $login	1750	=item $ob->inv_recursive
873		1751
874	Returns true when the given account exists.	1752	Returns the inventory of the object _and_ their inventories, recursively.
875		1753
876	=cut	1754	=cut
877		1755
878	sub cf::player::exists($) {	1756	sub inv_recursive_;
879	cf::player::find $_[0]	1757	sub inv_recursive_ {
880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1758	map { $_, inv_recursive_ $_->inv } @_
881	}	1759	}
882		1760
883	=item $player->ext_reply ($msgid, $msgtype, %msg)	1761	sub inv_recursive {
884		1762	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	}	1763	}
		1764
		1765	package cf;
896		1766
897	=back	1767	=back
898		1768
899	=head3 cf::object::player	1769	=head3 cf::object::player
900		1770
…		…
938	(ref $cf::CFG{"may_$access"}	1808	(ref $cf::CFG{"may_$access"}
939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1809	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
940	: $cf::CFG{"may_$access"})	1810	: $cf::CFG{"may_$access"})
941	}	1811	}
942		1812
		1813	=item $player_object->enter_link
		1814
		1815	Freezes the player and moves him/her to a special map (C<{link}>).
		1816
		1817	The player should be reasonably safe there for short amounts of time. You
		1818	I<MUST> call C<leave_link> as soon as possible, though.
		1819
		1820	Will never block.
		1821
		1822	=item $player_object->leave_link ($map, $x, $y)
		1823
		1824	Moves the player out of the special C<{link}> map onto the specified
		1825	map. If the map is not valid (or omitted), the player will be moved back
		1826	to the location he/she was before the call to C<enter_link>, or, if that
		1827	fails, to the emergency map position.
		1828
		1829	Might block.
		1830
		1831	=cut
		1832
		1833	sub link_map {
		1834	unless ($LINK_MAP) {
		1835	$LINK_MAP = cf::map::find "{link}"
		1836	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1837	$LINK_MAP->load;
		1838	}
		1839
		1840	$LINK_MAP
		1841	}
		1842
		1843	sub cf::object::player::enter_link {
		1844	my ($self) = @_;
		1845
		1846	$self->deactivate_recursive;
		1847
		1848	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1849
		1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1851	if $self->map;
		1852
		1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1854	}
		1855
		1856	sub cf::object::player::leave_link {
		1857	my ($self, $map, $x, $y) = @_;
		1858
		1859	my $link_pos = delete $self->{_link_pos};
		1860
		1861	unless ($map) {
		1862	# restore original map position
		1863	($map, $x, $y) = @{ $link_pos || [] };
		1864	$map = cf::map::find $map;
		1865
		1866	unless ($map) {
		1867	($map, $x, $y) = @$EMERGENCY_POSITION;
		1868	$map = cf::map::find $map
		1869	or die "FATAL: cannot load emergency map\n";
		1870	}
		1871	}
		1872
		1873	($x, $y) = (-1, -1)
		1874	unless (defined $x) && (defined $y);
		1875
		1876	# use -1 or undef as default coordinates, not 0, 0
		1877	($x, $y) = ($map->enter_x, $map->enter_y)
		1878	if $x <=0 && $y <= 0;
		1879
		1880	$map->load;
		1881	$map->load_diag;
		1882
		1883	return unless $self->contr->active;
		1884	$self->activate_recursive;
		1885
		1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1887	$self->enter_map ($map, $x, $y);
		1888	}
		1889
		1890	cf::player->attach (
		1891	on_logout => sub {
		1892	my ($pl) = @_;
		1893
		1894	# abort map switching before logout
		1895	if ($pl->ob->{_link_pos}) {
		1896	cf::sync_job {
		1897	$pl->ob->leave_link
		1898	};
		1899	}
		1900	},
		1901	on_login => sub {
		1902	my ($pl) = @_;
		1903
		1904	# try to abort aborted map switching on player login :)
		1905	# should happen only on crashes
		1906	if ($pl->ob->{_link_pos}) {
		1907	$pl->ob->enter_link;
		1908	(async {
		1909	$pl->ob->reply (undef,
		1910	"There was an internal problem at your last logout, "
		1911	. "the server will try to bring you to your intended destination in a second.",
		1912	cf::NDI_RED);
		1913	# we need this sleep as the login has a concurrent enter_exit running
		1914	# and this sleep increases chances of the player not ending up in scorn
		1915	Coro::Timer::sleep 1;
		1916	$pl->ob->leave_link;
		1917	})->prio (2);
		1918	}
		1919	},
		1920	);
		1921
		1922	=item $player_object->goto ($path, $x, $y)
		1923
		1924	=cut
		1925
		1926	sub cf::object::player::goto {
		1927	my ($self, $path, $x, $y) = @_;
		1928
		1929	$self->enter_link;
		1930
		1931	(async {
		1932	my $map = eval {
		1933	my $map = cf::map::find $path;
		1934	$map = $map->customise_for ($self) if $map;
		1935	$map
		1936	} or
		1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1938
		1939	$self->leave_link ($map, $x, $y);
		1940	})->prio (1);
		1941	}
		1942
		1943	=item $player_object->enter_exit ($exit_object)
		1944
		1945	=cut
		1946
		1947	sub parse_random_map_params {
		1948	my ($spec) = @_;
		1949
		1950	my $rmp = { # defaults
		1951	xsize => (cf::rndm 15, 40),
		1952	ysize => (cf::rndm 15, 40),
		1953	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1954	#layout => string,
		1955	};
		1956
		1957	for (split /\n/, $spec) {
		1958	my ($k, $v) = split /\s+/, $_, 2;
		1959
		1960	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1961	}
		1962
		1963	$rmp
		1964	}
		1965
		1966	sub prepare_random_map {
		1967	my ($exit) = @_;
		1968
		1969	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1970
		1971	# all this does is basically replace the /! path by
		1972	# a new random map path (?random/...) with a seed
		1973	# that depends on the exit object
		1974
		1975	my $rmp = parse_random_map_params $exit->msg;
		1976
		1977	if ($exit->map) {
		1978	$rmp->{region} = $exit->region->name;
		1979	$rmp->{origin_map} = $exit->map->path;
		1980	$rmp->{origin_x} = $exit->x;
		1981	$rmp->{origin_y} = $exit->y;
		1982	}
		1983
		1984	$rmp->{random_seed} ||= $exit->random_seed;
		1985
		1986	my $data = cf::to_json $rmp;
		1987	my $md5 = Digest::MD5::md5_hex $data;
		1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1989
		1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1991	aio_write $fh, 0, (length $data), $data, 0;
		1992	undef $fh;
		1993	aio_rename "$meta~", $meta;
		1994
		1995	$exit->slaying ("?random/$md5");
		1996	$exit->msg (undef);
		1997	}
		1998	}
		1999
		2000	sub cf::object::player::enter_exit {
		2001	my ($self, $exit) = @_;
		2002
		2003	return unless $self->type == cf::PLAYER;
		2004
		2005	if ($exit->slaying eq "/!") {
		2006	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2007	# the problem is that $exit might not survive long enough
		2008	# so it needs to be done right now, right here
		2009	cf::sync_job { prepare_random_map $exit };
		2010	}
		2011
		2012	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2013	my $hp = $exit->stats->hp;
		2014	my $sp = $exit->stats->sp;
		2015
		2016	$self->enter_link;
		2017
		2018	(async {
		2019	$self->deactivate_recursive; # just to be sure
		2020	unless (eval {
		2021	$self->goto ($slaying, $hp, $sp);
		2022
		2023	1;
		2024	}) {
		2025	$self->message ("Something went wrong deep within the crossfire server. "
		2026	. "I'll try to bring you back to the map you were before. "
		2027	. "Please report this to the dungeon master!",
		2028	cf::NDI_UNIQUE | cf::NDI_RED);
		2029
		2030	warn "ERROR in enter_exit: $@";
		2031	$self->leave_link;
		2032	}
		2033	})->prio (1);
		2034	}
		2035
943	=head3 cf::client	2036	=head3 cf::client
944		2037
945	=over 4	2038	=over 4
946		2039
947	=item $client->send_drawinfo ($text, $flags)	2040	=item $client->send_drawinfo ($text, $flags)
…		…
953		2046
954	sub cf::client::send_drawinfo {	2047	sub cf::client::send_drawinfo {
955	my ($self, $text, $flags) = @_;	2048	my ($self, $text, $flags) = @_;
956		2049
957	utf8::encode $text;	2050	utf8::encode $text;
958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
959	}	2052	}
960		2053
		2054	=item $client->ext_event ($type, %msg)
		2055
		2056	Sends an exti event to the client.
		2057
		2058	=cut
		2059
		2060	sub cf::client::ext_event($$%) {
		2061	my ($self, $type, %msg) = @_;
		2062
		2063	$msg{msgtype} = "event_$type";
		2064	$self->send_packet ("ext " . cf::to_json \%msg);
		2065	}
961		2066
962	=item $success = $client->query ($flags, "text", \&cb)	2067	=item $success = $client->query ($flags, "text", \&cb)
963		2068
964	Queues a query to the client, calling the given callback with	2069	Queues a query to the client, calling the given callback with
965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
990	on_reply => sub {	2095	on_reply => sub {
991	my ($ns, $msg) = @_;	2096	my ($ns, $msg) = @_;
992		2097
993	# this weird shuffling is so that direct followup queries	2098	# this weird shuffling is so that direct followup queries
994	# get handled first	2099	# get handled first
995	my $queue = delete $ns->{query_queue};	2100	my $queue = delete $ns->{query_queue}
		2101	or return; # be conservative, not sure how that can happen, but we saw a crash here
996		2102
997	(shift @$queue)->[1]->($msg);	2103	(shift @$queue)->[1]->($msg);
		2104	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
998		2105
999	push @{ $ns->{query_queue} }, @$queue;	2106	push @{ $ns->{query_queue} }, @$queue;
1000		2107
1001	if (@{ $ns->{query_queue} } == @$queue) {	2108	if (@{ $ns->{query_queue} } == @$queue) {
1002	if (@$queue) {	2109	if (@$queue) {
…		…
1006	}	2113	}
1007	}	2114	}
1008	},	2115	},
1009	);	2116	);
1010		2117
1011	=item $client->coro (\&cb)	2118	=item $client->async (\&cb)
1012		2119
1013	Create a new coroutine, running the specified callback. The coroutine will	2120	Create a new coroutine, running the specified callback. The coroutine will
1014	be automatically cancelled when the client gets destroyed (e.g. on logout,	2121	be automatically cancelled when the client gets destroyed (e.g. on logout,
1015	or loss of connection).	2122	or loss of connection).
1016		2123
1017	=cut	2124	=cut
1018		2125
1019	sub cf::client::coro {	2126	sub cf::client::async {
1020	my ($self, $cb) = @_;	2127	my ($self, $cb) = @_;
1021		2128
1022	my $coro; $coro = async {	2129	my $coro = &Coro::async ($cb);
1023	eval {
1024	$cb->();
1025	};
1026	warn $@ if $@;
1027	};
1028		2130
1029	$coro->on_destroy (sub {	2131	$coro->on_destroy (sub {
1030	delete $self->{_coro}{$coro+0};	2132	delete $self->{_coro}{$coro+0};
1031	});	2133	});
1032		2134
…		…
1065		2167
1066	# here we export the classes and methods available to script code	2168	# here we export the classes and methods available to script code
1067		2169
1068	=pod	2170	=pod
1069		2171
1070	The following fucntions and emthods are available within a safe environment:	2172	The following functions and methods are available within a safe environment:
1071		2173
1072	cf::object contr pay_amount pay_player map	2174	cf::object contr pay_amount pay_player map
1073	cf::object::player player	2175	cf::object::player player
1074	cf::player peaceful	2176	cf::player peaceful
1075	cf::map trigger	2177	cf::map trigger
…		…
1168	The parameter C<$family> should best start with the name of the extension	2270	The parameter C<$family> should best start with the name of the extension
1169	using it, it should be unique.	2271	using it, it should be unique.
1170		2272
1171	=over 4	2273	=over 4
1172		2274
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	2275	=item $value = cf::db_get $family => $key
1180		2276
1181	Returns a single value from the database	2277	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		2278
1188	=item cf::db_put $family => $key => $value	2279	=item cf::db_put $family => $key => $value
1189		2280
1190	Stores the given C<$value> in the family hash. Updates are delayed, if you	2281	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		2282
1201	=cut	2283	=cut
1202		2284
1203	our $DB;	2285	our $DB;
1204		2286
1205	{	2287	sub db_init {
		2288	unless ($DB) {
		2289	$DB = BDB::db_create $DB_ENV;
		2290
		2291	cf::sync_job {
		2292	eval {
		2293	$DB->set_flags (BDB::CHKSUM);
		2294
		2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2297	cf::cleanup "db_open(db): $!" if $!;
		2298	};
		2299	cf::cleanup "db_open(db): $@" if $@;
		2300	};
		2301
1206	my $path = cf::localdir . "/database.pst";	2302	my $path = cf::localdir . "/database.pst";
		2303	if (stat $path) {
		2304	cf::sync_job {
		2305	my $pst = Storable::retrieve $path;
1207		2306
1208	sub db_load() {	2307	cf::db_put (board => data => $pst->{board});
1209	warn "loading database $path\n";#d# remove later	2308	cf::db_put (guildrules => data => $pst->{guildrules});
1210	$DB = stat $path ? Storable::retrieve $path : { };	2309	cf::db_put (rent => balance => $pst->{rent}{balance});
1211	}	2310	BDB::db_env_txn_checkpoint $DB_ENV;
1212		2311
1213	my $pid;	2312	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	}	2313	};
1224	}
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	});
1236
1237	sub db_dirty() {
1238	$dirty = 1;
1239	$idle->start;
1240	}
1241
1242	sub db_get($;$) {
1243	@_ >= 2
1244	? $DB->{$_[0]}{$_[1]}
1245	: ($DB->{$_[0]} ||= { })
1246	}
1247
1248	sub db_put($$;$) {
1249	if (@_ >= 3) {
1250	$DB->{$_[0]}{$_[1]} = $_[2];
1251	} else {
1252	$DB->{$_[0]} = $_[1];
1253	}
1254	db_dirty;
1255	}
1256
1257	cf::global->attach (
1258	prio => 10000,
1259	on_cleanup => sub {
1260	db_sync;
1261	},	2314	}
1262	);	2315	}
		2316	}
		2317
		2318	sub db_get($$) {
		2319	my $key = "$_[0]/$_[1]";
		2320
		2321	cf::sync_job {
		2322	BDB::db_get $DB, undef, $key, my $data;
		2323
		2324	$! ? ()
		2325	: Compress::LZF::sthaw $data
		2326	}
		2327	}
		2328
		2329	sub db_put($$$) {
		2330	BDB::dbreq_pri 4;
		2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1263	}	2332	}
1264		2333
1265	#############################################################################	2334	#############################################################################
1266	# the server's main()	2335	# the server's init and main functions
		2336
		2337	sub load_facedata {
		2338	my $path = sprintf "%s/facedata", cf::datadir;
		2339
		2340	warn "loading facedata from $path\n";
		2341
		2342	my $facedata;
		2343	0 < aio_load $path, $facedata
		2344	or die "$path: $!";
		2345
		2346	$facedata = Coro::Storable::thaw $facedata;
		2347
		2348	$facedata->{version} == 2
		2349	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2350
		2351	{
		2352	my $faces = $facedata->{faceinfo};
		2353
		2354	while (my ($face, $info) = each %$faces) {
		2355	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2356	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2357	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2358	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2359	Coro::cede;
		2360	}
		2361
		2362	while (my ($face, $info) = each %$faces) {
		2363	next unless $info->{smooth};
		2364	my $idx = cf::face::find $face
		2365	or next;
		2366	if (my $smooth = cf::face::find $info->{smooth}) {
		2367	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2368	} else {
		2369	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2370	}
		2371	Coro::cede;
		2372	}
		2373	}
		2374
		2375	{
		2376	my $anims = $facedata->{animinfo};
		2377
		2378	while (my ($anim, $info) = each %$anims) {
		2379	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2380	Coro::cede;
		2381	}
		2382
		2383	cf::anim::invalidate_all; # d'oh
		2384	}
		2385
		2386	1
		2387	}
		2388
		2389	sub load_archetypes {
		2390	load_archetype_file sprintf "%s/archetypes", cf::datadir; # remove when stable
		2391	load_archetype_file sprintf "%s/archetypes", cf::datadir
		2392	}
		2393
		2394	sub load_treasures {
		2395	load_treasure_file sprintf "%s/treasures", cf::datadir
		2396	}
		2397
		2398	sub reload_resources {
		2399	warn "reloading resource files...\n";
		2400
		2401	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2402	or die "unable to load regions file\n";
		2403	load_facedata
		2404	or die "unable to load facedata\n";
		2405	load_archetypes
		2406	or die "unable to load archetypes\n";
		2407	load_treasures
		2408	or die "unable to load treasurelists\n";
		2409
		2410	warn "finished reloading resource files\n";
		2411	}
		2412
		2413	sub init {
		2414	reload_resources;
		2415	}
1267		2416
1268	sub cfg_load {	2417	sub cfg_load {
1269	open my $fh, "<:utf8", cf::confdir . "/config"	2418	open my $fh, "<:utf8", cf::confdir . "/config"
1270	or return;	2419	or return;
1271		2420
1272	local $/;	2421	local $/;
1273	*CFG = YAML::Syck::Load <$fh>;	2422	*CFG = YAML::Syck::Load <$fh>;
		2423
		2424	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2425
		2426	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2427	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2428
		2429	if (exists $CFG{mlockall}) {
		2430	eval {
		2431	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2432	and die "WARNING: m(un)lockall failed: $!\n";
		2433	};
		2434	warn $@ if $@;
		2435	}
1274	}	2436	}
1275		2437
1276	sub main {	2438	sub main {
		2439	# we must not ever block the main coroutine
		2440	local $Coro::idle = sub {
		2441	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2442	(async {
		2443	Event::one_event;
		2444	})->prio (Coro::PRIO_MAX);
		2445	};
		2446
1277	cfg_load;	2447	cfg_load;
1278	db_load;	2448	db_init;
1279	load_extensions;	2449	load_extensions;
		2450
		2451	$TICK_WATCHER->start;
1280	Event::loop;	2452	Event::loop;
1281	}	2453	}
1282		2454
1283	#############################################################################	2455	#############################################################################
1284	# initialisation	2456	# initialisation and cleanup
1285		2457
		2458	# install some emergency cleanup handlers
		2459	BEGIN {
		2460	for my $signal (qw(INT HUP TERM)) {
		2461	Event->signal (
		2462	reentrant => 0,
		2463	data => WF_AUTOCANCEL,
		2464	signal => $signal,
		2465	prio => 0,
		2466	cb => sub {
		2467	cf::cleanup "SIG$signal";
		2468	},
		2469	);
		2470	}
		2471	}
		2472
		2473	sub emergency_save() {
		2474	my $freeze_guard = cf::freeze_mainloop;
		2475
		2476	warn "enter emergency perl save\n";
		2477
		2478	cf::sync_job {
		2479	# use a peculiar iteration method to avoid tripping on perl
		2480	# refcount bugs in for. also avoids problems with players
		2481	# and maps saved/destroyed asynchronously.
		2482	warn "begin emergency player save\n";
		2483	for my $login (keys %cf::PLAYER) {
		2484	my $pl = $cf::PLAYER{$login} or next;
		2485	$pl->valid or next;
		2486	$pl->save;
		2487	}
		2488	warn "end emergency player save\n";
		2489
		2490	warn "begin emergency map save\n";
		2491	for my $path (keys %cf::MAP) {
		2492	my $map = $cf::MAP{$path} or next;
		2493	$map->valid or next;
		2494	$map->save;
		2495	}
		2496	warn "end emergency map save\n";
		2497
		2498	warn "begin emergency database checkpoint\n";
		2499	BDB::db_env_txn_checkpoint $DB_ENV;
		2500	warn "end emergency database checkpoint\n";
		2501	};
		2502
		2503	warn "leave emergency perl save\n";
		2504	}
		2505
		2506	sub post_cleanup {
		2507	my ($make_core) = @_;
		2508
		2509	warn Carp::longmess "post_cleanup backtrace"
		2510	if $make_core;
		2511	}
		2512
1286	sub perl_reload() {	2513	sub reload() {
1287	# can/must only be called in main	2514	# can/must only be called in main
1288	if ($Coro::current != $Coro::main) {	2515	if ($Coro::current != $Coro::main) {
1289	warn "can only reload from main coroutine\n";	2516	warn "can only reload from main coroutine";
1290	return;	2517	return;
1291	}	2518	}
1292		2519
1293	warn "reloading...";	2520	warn "reloading...";
1294		2521
1295	local $FREEZE = 1;	2522	warn "entering sync_job";
		2523
		2524	cf::sync_job {
		2525	cf::write_runtime; # external watchdog should not bark
1296	cf::emergency_save;	2526	cf::emergency_save;
		2527	cf::write_runtime; # external watchdog should not bark
1297		2528
1298	eval {	2529	warn "syncing database to disk";
		2530	BDB::db_env_txn_checkpoint $DB_ENV;
		2531
1299	# if anything goes wrong in here, we should simply crash as we already saved	2532	# if anything goes wrong in here, we should simply crash as we already saved
1300		2533
1301	# cancel all watchers	2534	warn "cancelling all WF_AUTOCANCEL watchers";
1302	for (Event::all_watchers) {	2535	for (Event::all_watchers) {
1303	$_->cancel if $_->data & WF_AUTOCANCEL;	2536	$_->cancel if $_->data & WF_AUTOCANCEL;
1304	}	2537	}
1305		2538
		2539	warn "flushing outstanding aio requests";
		2540	for (;;) {
		2541	BDB::flush;
		2542	IO::AIO::flush;
		2543	Coro::cede;
		2544	last unless IO::AIO::nreqs || BDB::nreqs;
		2545	warn "iterate...";
		2546	}
		2547
		2548	++$RELOAD;
		2549
1306	# cancel all extension coros	2550	warn "cancelling all extension coros";
1307	$_->cancel for values %EXT_CORO;	2551	$_->cancel for values %EXT_CORO;
1308	%EXT_CORO = ();	2552	%EXT_CORO = ();
1309		2553
1310	# unload all extensions	2554	warn "removing commands";
1311	for (@exts) {	2555	%COMMAND = ();
		2556
		2557	warn "removing ext commands";
		2558	%EXTCMD = ();
		2559
		2560	warn "unloading/nuking all extensions";
		2561	for my $pkg (@EXTS) {
1312	warn "unloading <$_>";	2562	warn "... unloading $pkg";
1313	unload_extension $_;	2563
		2564	if (my $cb = $pkg->can ("unload")) {
		2565	eval {
		2566	$cb->($pkg);
		2567	1
		2568	} or warn "$pkg unloaded, but with errors: $@";
1314	}	2569	}
1315		2570
		2571	warn "... nuking $pkg";
		2572	Symbol::delete_package $pkg;
		2573	}
		2574
1316	# unload all modules loaded from $LIBDIR	2575	warn "unloading all perl modules loaded from $LIBDIR";
1317	while (my ($k, $v) = each %INC) {	2576	while (my ($k, $v) = each %INC) {
1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2577	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1319		2578
1320	warn "removing <$k>";	2579	warn "... unloading $k";
1321	delete $INC{$k};	2580	delete $INC{$k};
1322		2581
1323	$k =~ s/\.pm$//;	2582	$k =~ s/\.pm$//;
1324	$k =~ s/\//::/g;	2583	$k =~ s/\//::/g;
1325		2584
…		…
1328	}	2587	}
1329		2588
1330	Symbol::delete_package $k;	2589	Symbol::delete_package $k;
1331	}	2590	}
1332		2591
1333	# sync database to disk
1334	cf::db_sync;
1335	IO::AIO::flush;
1336
1337	# get rid of safe::, as good as possible	2592	warn "getting rid of safe::, as good as possible";
1338	Symbol::delete_package "safe::$_"	2593	Symbol::delete_package "safe::$_"
1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2594	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1340		2595
1341	# remove register_script_function callbacks
1342	# TODO
1343
1344	# unload cf.pm "a bit"	2596	warn "unloading cf.pm \"a bit\"";
1345	delete $INC{"cf.pm"};	2597	delete $INC{"cf.pm"};
1346		2598
1347	# don't, removes xs symbols, too,	2599	# don't, removes xs symbols, too,
1348	# and global variables created in xs	2600	# and global variables created in xs
1349	#Symbol::delete_package __PACKAGE__;	2601	#Symbol::delete_package __PACKAGE__;
1350		2602
1351	# reload cf.pm	2603	warn "unload completed, starting to reload now";
		2604
1352	warn "reloading cf.pm";	2605	warn "reloading cf.pm";
1353	require cf;	2606	require cf;
1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2607	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1355		2608
1356	# load config and database again	2609	warn "loading config and database again";
1357	cf::cfg_load;	2610	cf::cfg_load;
1358	cf::db_load;
1359		2611
1360	# load extensions
1361	warn "load extensions";	2612	warn "loading extensions";
1362	cf::load_extensions;	2613	cf::load_extensions;
1363		2614
1364	# reattach attachments to objects	2615	warn "reattaching attachments to objects/players";
1365	warn "reattach";	2616	_global_reattach; # objects, sockets
1366	_global_reattach;	2617	warn "reattaching attachments to maps";
1367	};	2618	reattach $_ for values %MAP;
		2619	warn "reattaching attachments to players";
		2620	reattach $_ for values %PLAYER;
1368		2621
1369	if ($@) {	2622	warn "loading reloadable resources";
		2623	reload_resources;
		2624
		2625	warn "leaving sync_job";
		2626
		2627	1
		2628	} or do {
1370	warn $@;	2629	warn $@;
1371	warn "error while reloading, exiting.";	2630	warn "error while reloading, exiting.";
1372	exit 1;	2631	exit 1;
1373	}	2632	};
1374		2633
1375	warn "reloaded successfully";	2634	warn "reloaded";
1376	};	2635	};
1377		2636
1378	register "<global>", __PACKAGE__;	2637	our $RELOAD_WATCHER; # used only during reload
1379		2638
1380	register_command "perl-reload" => sub {	2639	register_command "reload" => sub {
1381	my ($who, $arg) = @_;	2640	my ($who, $arg) = @_;
1382		2641
1383	if ($who->flag (FLAG_WIZ)) {	2642	if ($who->flag (FLAG_WIZ)) {
1384	$who->message ("start of reload.");
1385	perl_reload;
1386	$who->message ("end of reload.");	2643	$who->message ("reloading server.");
		2644
		2645	# doing reload synchronously and two reloads happen back-to-back,
		2646	# coro crashes during coro_state_free->destroy here.
		2647
		2648	$RELOAD_WATCHER ||= Event->timer (
		2649	reentrant => 0,
		2650	after => 0,
		2651	data => WF_AUTOCANCEL,
		2652	cb => sub {
		2653	reload;
		2654	undef $RELOAD_WATCHER;
		2655	},
		2656	);
1387	}	2657	}
1388	};	2658	};
1389		2659
1390	unshift @INC, $LIBDIR;	2660	unshift @INC, $LIBDIR;
		2661
		2662	my $bug_warning = 0;
		2663
		2664	our @WAIT_FOR_TICK;
		2665	our @WAIT_FOR_TICK_BEGIN;
		2666
		2667	sub wait_for_tick {
		2668	return unless $TICK_WATCHER->is_active;
		2669	return if $Coro::current == $Coro::main;
		2670
		2671	my $signal = new Coro::Signal;
		2672	push @WAIT_FOR_TICK, $signal;
		2673	$signal->wait;
		2674	}
		2675
		2676	sub wait_for_tick_begin {
		2677	return unless $TICK_WATCHER->is_active;
		2678	return if $Coro::current == $Coro::main;
		2679
		2680	my $signal = new Coro::Signal;
		2681	push @WAIT_FOR_TICK_BEGIN, $signal;
		2682	$signal->wait;
		2683	}
1391		2684
1392	$TICK_WATCHER = Event->timer (	2685	$TICK_WATCHER = Event->timer (
1393	reentrant => 0,	2686	reentrant => 0,
		2687	parked => 1,
1394	prio => 0,	2688	prio => 0,
1395	at => $NEXT_TICK || $TICK,	2689	at => $NEXT_TICK || $TICK,
1396	data => WF_AUTOCANCEL,	2690	data => WF_AUTOCANCEL,
1397	cb => sub {	2691	cb => sub {
1398	unless ($FREEZE) {	2692	if ($Coro::current != $Coro::main) {
		2693	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2694	unless ++$bug_warning > 10;
		2695	return;
		2696	}
		2697
		2698	$NOW = Event::time;
		2699
1399	cf::server_tick; # one server iteration	2700	cf::server_tick; # one server iteration
		2701
1400	$RUNTIME += $TICK;	2702	$RUNTIME += $TICK;
1401	}
1402
1403	$NEXT_TICK += $TICK;	2703	$NEXT_TICK += $TICK;
		2704
		2705	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2706	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2707	Coro::async_pool {
		2708	write_runtime
		2709	or warn "ERROR: unable to write runtime file: $!";
		2710	};
		2711	}
		2712
		2713	# my $AFTER = Event::time;
		2714	# warn $AFTER - $NOW;#d#
1404		2715
1405	# if we are delayed by four ticks or more, skip them all	2716	# if we are delayed by four ticks or more, skip them all
1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2717	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1407		2718
1408	$TICK_WATCHER->at ($NEXT_TICK);	2719	$TICK_WATCHER->at ($NEXT_TICK);
1409	$TICK_WATCHER->start;	2720	$TICK_WATCHER->start;
		2721
		2722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2723	$sig->send;
		2724	}
		2725	while (my $sig = shift @WAIT_FOR_TICK) {
		2726	$sig->send;
		2727	}
		2728
		2729	_post_tick;
1410	},	2730	},
1411	);	2731	);
1412		2732
		2733	{
		2734	BDB::max_poll_time $TICK * 0.1;
		2735	$BDB_POLL_WATCHER = Event->io (
		2736	reentrant => 0,
		2737	fd => BDB::poll_fileno,
		2738	poll => 'r',
		2739	prio => 0,
		2740	data => WF_AUTOCANCEL,
		2741	cb => \&BDB::poll_cb,
		2742	);
		2743	BDB::min_parallel 8;
		2744
		2745	BDB::set_sync_prepare {
		2746	my $status;
		2747	my $current = $Coro::current;
		2748	(
		2749	sub {
		2750	$status = $!;
		2751	$current->ready; undef $current;
		2752	},
		2753	sub {
		2754	Coro::schedule while defined $current;
		2755	$! = $status;
		2756	},
		2757	)
		2758	};
		2759
		2760	unless ($DB_ENV) {
		2761	$DB_ENV = BDB::db_env_create;
		2762
		2763	cf::sync_job {
		2764	eval {
		2765	BDB::db_env_open
		2766	$DB_ENV,
		2767	$BDB_ENV_DIR,
		2768	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2769	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2770	0666;
		2771
		2772	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2773
		2774	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2775	$DB_ENV->set_lk_detect;
		2776	};
		2777
		2778	cf::cleanup "db_env_open(db): $@" if $@;
		2779	};
		2780	}
		2781	}
		2782
		2783	{
		2784	IO::AIO::min_parallel 8;
		2785
		2786	undef $Coro::AIO::WATCHER;
1413	IO::AIO::max_poll_time $TICK * 0.2;	2787	IO::AIO::max_poll_time $TICK * 0.1;
1414		2788	$AIO_POLL_WATCHER = Event->io (
1415	Event->io (fd => IO::AIO::poll_fileno,	2789	reentrant => 0,
1416	poll => 'r',
1417	prio => 5,
1418	data => WF_AUTOCANCEL,	2790	data => WF_AUTOCANCEL,
		2791	fd => IO::AIO::poll_fileno,
		2792	poll => 'r',
		2793	prio => 6,
1419	cb => \&IO::AIO::poll_cb);	2794	cb => \&IO::AIO::poll_cb,
		2795	);
		2796	}
1420		2797
1421	# we must not ever block the main coroutine	2798	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		2799
1430	1	2800	1
1431		2801

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