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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.190 by root, Mon Jan 22 03:44:41 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.4 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use Data::Dumper;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
46		53
47	our %CFG;	54	our %CFG;
48		55
49	our $UPTIME; $UPTIME ||= time;	56	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	57	our $RUNTIME;
51		58
		59	our %PLAYER; # all users
52	our %MAP; # all maps	60	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	61	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	62	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		69
58	binmode STDOUT;	70	binmode STDOUT;
59	binmode STDERR;	71	binmode STDERR;
60		72
61	# read virtual server time, if available	73	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	81	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	82	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	83	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	84	mkdir $RANDOM_MAPS;
73		85
74	# a special map that is always available	86	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];
78		87
79	#############################################################################	88	#############################################################################
80		89
81	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
82		91
…		…
106		115
107	=item %cf::CFG	116	=item %cf::CFG
108		117
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
111		127
112	=back	128	=back
113		129
114	=cut	130	=cut
115		131
…		…
119	utf8::encode $msg;	135	utf8::encode $msg;
120		136
121	$msg .= "\n"	137	$msg .= "\n"
122	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
123		139
124	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
125	};	141	};
126	}	142	}
127		143
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		163
148	$Event::DIED = sub {	164	$Event::DIED = sub {
149	warn "error in event callback: @_";	165	warn "error in event callback: @_";
150	};	166	};
151		167
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
157		169
158	=over 4	170	=over 4
159		171
		172	=item dumpval $ref
		173
160	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
161		194
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		196
164	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
165		198
…		…
180		213
181	sub to_json($) {	214	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
184	}	217	}
		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
185		282
186	=item cf::sync_job { BLOCK }	283	=item cf::sync_job { BLOCK }
187		284
188	The design of crossfire+ requires that the main coro ($Coro::main) is	285	The design of crossfire+ requires that the main coro ($Coro::main) is
189	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
…		…
203	# this is the main coro, too bad, we have to block	300	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	301	# till the operation succeeds, freezing the server :/
205		302
206	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	304	# (but this is cancel-safe)
208	local $FREEZE = 1;	305	my $freeze_guard = freeze_mainloop;
209		306
210	my $busy = 1;	307	my $busy = 1;
211	my @res;	308	my @res;
212		309
213	(Coro::async {	310	(async {
214	@res = eval { $job->() };	311	@res = eval { $job->() };
215	warn $@ if $@;	312	warn $@ if $@;
216	undef $busy;	313	undef $busy;
217	})->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
218		315
219	while ($busy) {	316	while ($busy) {
220	Coro::cede_notself;	317	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	318	}
223		319
224	wantarray ? @res : $res[0]	320	wantarray ? @res : $res[0]
225	} else {	321	} else {
226	# we are in another coroutine, how wonderful, everything just works	322	# we are in another coroutine, how wonderful, everything just works
227		323
228	$job->()	324	$job->()
229	}	325	}
230	}	326	}
231		327
232	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
233		329
234	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
236		332
237	=cut	333	=cut
238		334
239	sub coro(&) {	335	sub async_ext(&) {
240	my $cb = shift;	336	my $cb = shift;
241		337
242	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		339
249	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
251	});	342	});
252	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
259		350
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	352	or return;
262		353
		354	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	359	and return;
266		360
267	aio_fsync $fh	361	aio_fsync $fh
268	and return;	362	and return;
…		…
277	}	371	}
278		372
279	=back	373	=back
280		374
281	=cut	375	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		376
393	#############################################################################	377	#############################################################################
394		378
395	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
396		380
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	507	our @CB_MAP = ();
524		508
525	my %attachment;	509	my %attachment;
526		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
527	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
529		519
530	use sort 'stable';	520	use sort 'stable';
531		521
…		…
702	# object support	692	# object support
703		693
704	sub reattach {	694	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		699
708	my $registry = $obj->registry;	700	my $registry = $obj->registry;
709		701
710	@$registry = ();	702	@$registry = ();
711		703
…		…
804	or return;	796	or return;
805		797
806	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
808	or return;	800	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
810	}	802	}
811		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	806	return ($data, $av);
813	}	807	}
814		808
815	#############################################################################	809	#############################################################################
816	# command handling &c	810	# command handling &c
…		…
841	=cut	835	=cut
842		836
843	sub register_extcmd {	837	sub register_extcmd {
844	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
845		839
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
850	}	841	}
851		842
852	cf::player->attach (	843	cf::player->attach (
853	on_command => sub {	844	on_command => sub {
854	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
867		858
868	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
869		860
870	if (ref $msg) {	861	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	865	}
875	}	866	}
876	} else {	867	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		870
880	cf::override;	871	cf::override;
881	},	872	},
882	);	873	);
883		874
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	875	sub load_extension {
891	my ($path) = @_;	876	my ($path) = @_;
892		877
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	879	my $base = $1;
895	my $pkg = $1;	880	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
898		883
899	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
900		885
901	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
902	or die "$path: $!";	887	or die "$path: $!";
903		888
904	my $source =	889	my $source =
905	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
908	. "\n};\n1";	893	. "\n};\n1";
909		894
910	eval $source	895	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	897	: "extension disabled.\n";
913		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	899	warn $@;
915	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
916		901	exit 1;
917	# no strict 'refs';	902	}
918	# @{"$pkg\::ISA"} = ext::;	903	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	904	}
933		905
934	# remove commands	906	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	907	}
959		908
960	sub load_extensions {	909	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	911	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
967	}	916	}
968	}	917	}
969		918
970	#############################################################################	919	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		920
1008	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1009		922
1010	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1011		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1012	=head3 cf::player	931	=head3 cf::player
1013		932
1014	=over 4	933	=over 4
1015		934
1016	=item cf::player::exists $login	935	=item cf::player::find $login
1017		936
1018	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1019		938
1020	=cut	939	=cut
1021		940
1022	sub cf::player::exists($) {	941	sub playerdir($) {
1023	cf::player::find $_[0]	942	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
1025	}	1088	}
1026		1089
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1091
1029	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1030		1093
1031	=cut	1094	=cut
1032		1095
1033	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1035		1098
1036	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1037		1100
1038	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1039	}	1102	}
		1103
		1104	package cf;
1040		1105
1041	=back	1106	=back
1042		1107
1043		1108
1044	=head3 cf::map	1109	=head3 cf::map
…		…
1050	package cf::map;	1115	package cf::map;
1051		1116
1052	use Fcntl;	1117	use Fcntl;
1053	use Coro::AIO;	1118	use Coro::AIO;
1054		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1055	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1057		1126
1058	sub generate_random_map {	1127	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1130	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1268	}
1076		1269
1077	# and all this just because we cannot iterate over	1270	# and all this just because we cannot iterate over
1078	# all maps in C++...	1271	# all maps in C++...
1079	sub change_all_map_light {	1272	sub change_all_map_light {
1080	my ($change) = @_;	1273	my ($change) = @_;
1081		1274
1082	$_->change_map_light ($change) for values %cf::MAP;	1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
1083	}	1277	}
1084		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
1085	sub try_load_header($) {	1287	sub load_header_from($) {
1086	my ($path) = @_;	1288	my ($self, $path) = @_;
1087		1289
1088	utf8::encode $path;	1290	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1291	aio_open $path, O_RDONLY, 0
1090	or return;	1292	or return;
1091		1293
1092	my $map = cf::map::new	1294	$self->_load_header ($path)
1093	or return;	1295	or return;
1094		1296
1095	$map->load_header ($path)	1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_header_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_header_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub prepare_temp {
		1315	my ($self) = @_;
		1316
		1317	$self->last_access ((delete $self->{last_access})
		1318	|| $cf::RUNTIME); #d#
		1319	# safety
		1320	$self->{instantiate_time} = $cf::RUNTIME
		1321	if $self->{instantiate_time} > $cf::RUNTIME;
		1322	}
		1323
		1324	sub prepare_orig {
		1325	my ($self) = @_;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	sub load_header {
		1334	my ($self) = @_;
		1335
		1336	if ($self->load_header_temp) {
		1337	$self->prepare_temp;
		1338	} else {
		1339	$self->load_header_orig
1096	or return;	1340	or return;
		1341	$self->prepare_orig;
		1342	}
1097		1343
1098	$map->{load_path} = $path;	1344	1
1099
1100	$map
1101	}	1345	}
1102		1346
		1347	sub find;
1103	sub find_map {	1348	sub find {
1104	my ($path, $origin) = @_;	1349	my ($path, $origin) = @_;
1105		1350
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1351	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1352
		1353	cf::lock_wait "map_find:$path";
		1354
1111	$cf::MAP{$key} || do {	1355	$cf::MAP{$path} || do {
1112	# do it the slow way	1356	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1357	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1358	or return;
1127		1359
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1360	$map->{last_save} = $cf::RUNTIME;
		1361
		1362	$map->load_header
		1363	or return;
1139		1364
1140	if ($map->should_reset) {	1365	if ($map->should_reset) {
		1366	# doing this can freeze the server in a sync job, obviously
		1367	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1368	$map->reset;
		1369	undef $guard;
1142	$map = find_map $path;	1370	$map = find $path
		1371	or return;
1143	}	1372	}
1144		1373
1145	$cf::MAP{$key} = $map	1374	$cf::MAP{$path} = $map
1146	}	1375	}
1147	}	1376	}
		1377
		1378	sub pre_load { }
		1379	sub post_load { }
1148		1380
1149	sub load {	1381	sub load {
1150	my ($self) = @_;	1382	my ($self) = @_;
1151		1383
		1384	my $path = $self->{path};
		1385	my $guard = cf::lock_acquire "map_load:$path";
		1386
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1387	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1388
1154	$self->in_memory (cf::MAP_LOADING);	1389	$self->in_memory (cf::MAP_LOADING);
1155		1390
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1391	$self->alloc;
		1392
		1393	$self->pre_load;
		1394
1159	$self->load_objects ($self->{load_path}, 1)	1395	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1396	or return;
1161		1397
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1399	if delete $self->{load_original};
1164		1400
1165	if (my $uniq = $path->uniq_path) {	1401	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1402	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1403	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1404	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1405	$self->_load_objects ($uniq, 0);
1170	}	1406	}
1171	}	1407	}
		1408
		1409	Coro::cede;
1172		1410
1173	# now do the right thing for maps	1411	# now do the right thing for maps
1174	$self->link_multipart_objects;	1412	$self->link_multipart_objects;
1175		1413
1176	if ($self->{path}->is_style_map) {	1414	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1415	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1416	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1417	$self->update_buttons;
		1418	Coro::cede;
1183	$self->set_darkness_map;	1419	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1420	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1421	unless $self->difficulty;
		1422	Coro::cede;
1186	$self->activate;	1423	$self->activate;
1187	}	1424	}
1188		1425
		1426	$self->post_load;
		1427
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1428	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1429	}
1191		1430
1192	sub load_map_sync {	1431	sub customise_for {
		1432	my ($self, $ob) = @_;
		1433
		1434	return find "~" . $ob->name . "/" . $self->{path}
		1435	if $self->per_player;
		1436
		1437	$self
		1438	}
		1439
		1440	# find and load all maps in the 3x3 area around a map
		1441	sub load_diag {
		1442	my ($map) = @_;
		1443
		1444	my @diag; # diagonal neighbours
		1445
		1446	for (0 .. 3) {
		1447	my $neigh = $map->tile_path ($_)
		1448	or next;
		1449	$neigh = find $neigh, $map
		1450	or next;
		1451	$neigh->load;
		1452
		1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1455	}
		1456
		1457	for (@diag) {
		1458	my $neigh = find @$_
		1459	or next;
		1460	$neigh->load;
		1461	}
		1462	}
		1463
		1464	sub find_sync {
1193	my ($path, $origin) = @_;	1465	my ($path, $origin) = @_;
1194		1466
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1467	cf::sync_job { find $path, $origin }
		1468	}
1196		1469
1197	cf::sync_job {	1470	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1471	my ($map) = @_;
1199	or return;	1472
		1473	cf::sync_job { $map->load };
		1474	}
		1475
		1476	our %MAP_PREFETCH;
		1477	our $MAP_PREFETCHER = undef;
		1478
		1479	sub find_async {
		1480	my ($path, $origin) = @_;
		1481
		1482	$path = normalise $path, $origin && $origin->{path};
		1483
		1484	if (my $map = $cf::MAP{$path}) {
		1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1486	}
		1487
		1488	undef $MAP_PREFETCH{$path};
		1489	$MAP_PREFETCHER ||= cf::async {
		1490	while (%MAP_PREFETCH) {
		1491	for my $path (keys %MAP_PREFETCH) {
		1492	my $map = find $path
		1493	or next;
1200	$map->load;	1494	$map->load;
1201	$map	1495
		1496	delete $MAP_PREFETCH{$path};
		1497	}
		1498	}
		1499	undef $MAP_PREFETCHER;
1202	}	1500	};
		1501	$MAP_PREFETCHER->prio (6);
		1502
		1503	()
1203	}	1504	}
1204		1505
1205	sub save {	1506	sub save {
1206	my ($self) = @_;	1507	my ($self) = @_;
1207		1508
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1509	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1510
1211	$self->{last_save} = $cf::RUNTIME;	1511	$self->{last_save} = $cf::RUNTIME;
1212		1512
1213	return unless $self->dirty;	1513	return unless $self->dirty;
1214		1514
		1515	my $save = $self->save_path; utf8::encode $save;
		1516	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1517
1215	$self->{load_path} = $save;	1518	$self->{load_path} = $save;
1216		1519
1217	return if $self->{deny_save};	1520	return if $self->{deny_save};
1218		1521
		1522	local $self->{last_access} = $self->last_access;#d#
		1523
		1524	cf::async {
		1525	$_->contr->save for $self->players;
		1526	};
		1527
1219	if ($uniq) {	1528	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1531	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1533	}
1225	}	1534	}
1226		1535
1227	sub swap_out {	1536	sub swap_out {
1228	my ($self) = @_;	1537	my ($self) = @_;
		1538
		1539	# save first because save cedes
		1540	$self->save;
		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1543
1230	return if $self->players;	1544	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1545	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1546	return if $self->{deny_save};
1233		1547
1234	$self->save;
1235	$self->clear;	1548	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1549	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1550	}
1238		1551
1239	sub reset_at {	1552	sub reset_at {
1240	my ($self) = @_;	1553	my ($self) = @_;
1241		1554
1242	# TODO: safety, remove and allow resettable per-player maps	1555	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1557	return 1e99 if $self->{deny_reset};
1245		1558
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1561
1250	$time + $to	1562	$time + $to
1251	}	1563	}
1252		1564
1253	sub should_reset {	1565	sub should_reset {
1254	my ($self) = @_;	1566	my ($self) = @_;
1255		1567
1256	$self->reset_at <= $cf::RUNTIME	1568	$self->reset_at <= $cf::RUNTIME
1257	}	1569	}
1258		1570
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1571	sub reset {
1268	my ($self) = @_;	1572	my ($self) = @_;
1269		1573
		1574	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1575
1270	return if $self->players;	1576	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1577	return if $self->isa ("ext::map_per_player");#d#
1272		1578
1273	warn "resetting map ", $self->path;#d#	1579	warn "resetting map ", $self->path;#d#
1274		1580
1275	delete $cf::MAP{$self->path};	1581	delete $cf::MAP{$self->path};
		1582
		1583	$self->in_memory (cf::MAP_SWAPPED);
		1584	$self->clear;
1276		1585
1277	$_->clear_links_to ($self) for values %cf::MAP;	1586	$_->clear_links_to ($self) for values %cf::MAP;
1278		1587
1279	$self->unlink_save;	1588	$self->unlink_save;
1280	$self->destroy;	1589	$self->destroy;
1281	}	1590	}
1282		1591
1283	sub customise_for {	1592	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1593
1286	if ($map->per_player) {	1594	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1595	my ($self) = @_;
1288	}
1289		1596
1290	$map	1597	delete $cf::MAP{$self->path};
1291	}
1292		1598
1293	sub emergency_save {	1599	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1600
1296	warn "enter emergency map save\n";	1601	bless $self, "cf::map";
		1602	delete $self->{deny_reset};
		1603	$self->{deny_save} = 1;
		1604	$self->reset_timeout (1);
		1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1606
1298	cf::sync_job {	1607	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1608
1300	$_->save for values %cf::MAP;	1609	$self->reset; # polite request, might not happen
		1610	}
		1611
		1612	=item cf::map::unique_maps
		1613
		1614	Returns an arrayref of paths of all shared maps that have
		1615	instantiated unique items. May block.
		1616
		1617	=cut
		1618
		1619	sub unique_maps() {
		1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1621	or return;
		1622
		1623	my @paths;
		1624
		1625	for (@$files) {
		1626	utf8::decode $_;
		1627	next if /\.pst$/;
		1628	next unless /^$PATH_SEP/o;
		1629
		1630	s/\.map$//;
		1631	push @paths, $_;
1301	};	1632	}
1302		1633
1303	warn "end emergency map save\n";	1634	\@paths
1304	}	1635	}
1305		1636
1306	package cf;	1637	package cf;
1307		1638
1308	=back	1639	=back
1309		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
		1665
		1666	=back
1310		1667
1311	=head3 cf::object::player	1668	=head3 cf::object::player
1312		1669
1313	=over 4	1670	=over 4
1314		1671
…		…
1350	(ref $cf::CFG{"may_$access"}	1707	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1709	: $cf::CFG{"may_$access"})
1353	}	1710	}
1354		1711
		1712	=item $player_object->enter_link
		1713
		1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reasonably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	Will never block.
		1720
		1721	=item $player_object->leave_link ($map, $x, $y)
		1722
		1723	Moves the player out of the special C<{link}> map onto the specified
		1724	map. If the map is not valid (or omitted), the player will be moved back
		1725	to the location he/she was before the call to C<enter_link>, or, if that
		1726	fails, to the emergency map position.
		1727
		1728	Might block.
		1729
		1730	=cut
		1731
		1732	sub link_map {
		1733	unless ($LINK_MAP) {
		1734	$LINK_MAP = cf::map::find "{link}"
		1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1736	$LINK_MAP->load;
		1737	}
		1738
		1739	$LINK_MAP
		1740	}
		1741
1355	sub cf::object::player::enter_link {	1742	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1743	my ($self) = @_;
1357		1744
1358	return if $self->map == $LINK_MAP;	1745	$self->deactivate_recursive;
1359		1746
		1747	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1748
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1750	if $self->map;
1362		1751
1363	$self->enter_map ($LINK_MAP, 20, 20);	1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);
1364	$self->deactivate_recursive;
1365	}	1753	}
1366		1754
1367	sub cf::object::player::leave_link {	1755	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1756	my ($self, $map, $x, $y) = @_;
1369		1757
1370	my $link_pos = delete $self->{_link_pos};	1758	my $link_pos = delete $self->{_link_pos};
1371		1759
1372	unless ($map) {	1760	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1761	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1762	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1763	$map = cf::map::find $map;
1378		1764
1379	unless ($map) {	1765	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1766	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1767	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1768	or die "FATAL: cannot load emergency map\n";
1383	}	1769	}
1384	}	1770	}
1385		1771
1386	($x, $y) = (-1, -1)	1772	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1775	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1776	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1777	if $x <=0 && $y <= 0;
1392		1778
1393	$map->load;	1779	$map->load;
		1780	$map->load_diag;
1394		1781
		1782	return unless $self->contr->active;
1395	$self->activate_recursive;	1783	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	1784	$self->enter_map ($map, $x, $y);
1397	}	1785	}
1398		1786
		1787	cf::player->attach (
		1788	on_logout => sub {
		1789	my ($pl) = @_;
		1790
		1791	# abort map switching before logout
		1792	if ($pl->ob->{_link_pos}) {
		1793	cf::sync_job {
		1794	$pl->ob->leave_link
		1795	};
		1796	}
		1797	},
		1798	on_login => sub {
		1799	my ($pl) = @_;
		1800
		1801	# try to abort aborted map switching on player login :)
		1802	# should happen only on crashes
		1803	if ($pl->ob->{_link_pos}) {
		1804	$pl->ob->enter_link;
		1805	(async {
		1806	# we need this sleep as the login has a concurrent enter_exit running
		1807	# and this sleep increases chances of the player not ending up in scorn
		1808	$pl->ob->reply (undef,
		1809	"There was an internal problem at your last logout, "
		1810	. "the server will try to bring you to your intended destination in a second.",
		1811	cf::NDI_RED);
		1812	Coro::Timer::sleep 1;
		1813	$pl->ob->leave_link;
		1814	})->prio (2);
		1815	}
		1816	},
		1817	);
		1818
1399	=item $player_object->goto_map ($map, $x, $y)	1819	=item $player_object->goto ($path, $x, $y)
1400		1820
1401	=cut	1821	=cut
1402		1822
1403	sub cf::object::player::goto_map {	1823	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1824	my ($self, $path, $x, $y) = @_;
1405		1825
1406	$self->enter_link;	1826	$self->enter_link;
1407		1827
1408	(Coro::async {	1828	(async {
1409	$path = new cf::path $path;
1410
1411	my $map = cf::map::find_map $path->as_string;	1829	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1830	$map = $map->customise_for ($self) if $map;
1413		1831
1414	warn "entering ", $map->path, " at ($x, $y)\n"	1832	# warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1833	# if $map;
		1834
		1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1836
1417	$self->leave_link ($map, $x, $y);	1837	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1838	})->prio (1);
1419	}	1839	}
1420		1840
…		…
1424		1844
1425	sub parse_random_map_params {	1845	sub parse_random_map_params {
1426	my ($spec) = @_;	1846	my ($spec) = @_;
1427		1847
1428	my $rmp = { # defaults	1848	my $rmp = { # defaults
1429	xsize => 10,	1849	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1850	ysize => (cf::rndm 15, 40),
		1851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1852	#layout => string,
1431	};	1853	};
1432		1854
1433	for (split /\n/, $spec) {	1855	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1856	my ($k, $v) = split /\s+/, $_, 2;
1435		1857
…		…
1439	$rmp	1861	$rmp
1440	}	1862	}
1441		1863
1442	sub prepare_random_map {	1864	sub prepare_random_map {
1443	my ($exit) = @_;	1865	my ($exit) = @_;
		1866
		1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1868
1445	# all this does is basically replace the /! path by	1869	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1870	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1871	# that depends on the exit object
1448		1872
…		…
1457		1881
1458	$rmp->{random_seed} ||= $exit->random_seed;	1882	$rmp->{random_seed} ||= $exit->random_seed;
1459		1883
1460	my $data = cf::to_json $rmp;	1884	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1885	my $md5 = Digest::MD5::md5_hex $data;
		1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1887
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1889	aio_write $fh, 0, (length $data), $data, 0;
		1890	undef $fh;
		1891	aio_rename "$meta~", $meta;
1465		1892
1466	$exit->slaying ("?random/$md5");	1893	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1894	$exit->msg (undef);
1468	}	1895	}
1469	}	1896	}
…		…
1473		1900
1474	return unless $self->type == cf::PLAYER;	1901	return unless $self->type == cf::PLAYER;
1475		1902
1476	$self->enter_link;	1903	$self->enter_link;
1477		1904
1478	(Coro::async {	1905	(async {
		1906	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1907	unless (eval {
1480
1481	prepare_random_map $exit	1908	prepare_random_map $exit
1482	if $exit->slaying eq "/!";	1909	if $exit->slaying eq "/!";
1483		1910
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1486		1913
1487	1;	1914	1;
1488	}) {	1915	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1916	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1917	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1918	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1919	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1920
1494	warn "ERROR in enter_exit: $@";	1921	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1922	$self->leave_link;
1496	}	1923	}
…		…
1547	on_reply => sub {	1974	on_reply => sub {
1548	my ($ns, $msg) = @_;	1975	my ($ns, $msg) = @_;
1549		1976
1550	# this weird shuffling is so that direct followup queries	1977	# this weird shuffling is so that direct followup queries
1551	# get handled first	1978	# get handled first
1552	my $queue = delete $ns->{query_queue};	1979	my $queue = delete $ns->{query_queue}
		1980	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		1981
1554	(shift @$queue)->[1]->($msg);	1982	(shift @$queue)->[1]->($msg);
1555		1983
1556	push @{ $ns->{query_queue} }, @$queue;	1984	push @{ $ns->{query_queue} }, @$queue;
1557		1985
…		…
1563	}	1991	}
1564	}	1992	}
1565	},	1993	},
1566	);	1994	);
1567		1995
1568	=item $client->coro (\&cb)	1996	=item $client->async (\&cb)
1569		1997
1570	Create a new coroutine, running the specified callback. The coroutine will	1998	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	1999	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2000	or loss of connection).
1573		2001
1574	=cut	2002	=cut
1575		2003
1576	sub cf::client::coro {	2004	sub cf::client::async {
1577	my ($self, $cb) = @_;	2005	my ($self, $cb) = @_;
1578		2006
1579	my $coro; $coro = async {	2007	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2008
1586	$coro->on_destroy (sub {	2009	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2010	delete $self->{_coro}{$coro+0};
1588	});	2011	});
1589		2012
…		…
1761		2184
1762	{	2185	{
1763	my $path = cf::localdir . "/database.pst";	2186	my $path = cf::localdir . "/database.pst";
1764		2187
1765	sub db_load() {	2188	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };	2189	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2190	}
1769		2191
1770	my $pid;	2192	my $pid;
1771		2193
1772	sub db_save() {	2194	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;	2195	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {	2196	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;	2197	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";	2198	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;	2199	rename "$path~", $path;
…		…
1785	sub db_sync() {	2206	sub db_sync() {
1786	db_save if $dirty;	2207	db_save if $dirty;
1787	undef $dirty;	2208	undef $dirty;
1788	}	2209	}
1789		2210
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2211	my $idle = Event->idle (
1791	db_sync;	2212	reentrant => 0,
		2213	min => 10,
		2214	max => 20,
		2215	repeat => 0,
		2216	data => WF_AUTOCANCEL,
		2217	cb => \&db_sync,
1792	});	2218	);
1793		2219
1794	sub db_dirty() {	2220	sub db_dirty() {
1795	$dirty = 1;	2221	$dirty = 1;
1796	$idle->start;	2222	$idle->start;
1797	}	2223	}
…		…
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2252	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2253	or return;
1828		2254
1829	local $/;	2255	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2256	*CFG = YAML::Syck::Load <$fh>;
		2257
		2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2259
		2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2262
		2263	if (exists $CFG{mlockall}) {
		2264	eval {
		2265	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2266	and die "WARNING: m(un)lockall failed: $!\n";
		2267	};
		2268	warn $@ if $@;
		2269	}
1831	}	2270	}
1832		2271
1833	sub main {	2272	sub main {
1834	# we must not ever block the main coroutine	2273	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2274	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2276	(async {
1838	Event::one_event;	2277	Event::one_event;
1839	})->();	2278	})->prio (Coro::PRIO_MAX);
1840	};	2279	};
1841		2280
1842	cfg_load;	2281	cfg_load;
1843	db_load;	2282	db_load;
1844	load_extensions;	2283	load_extensions;
		2284
		2285	$TICK_WATCHER->start;
1845	Event::loop;	2286	Event::loop;
1846	}	2287	}
1847		2288
1848	#############################################################################	2289	#############################################################################
1849	# initialisation	2290	# initialisation and cleanup
		2291
		2292	# install some emergency cleanup handlers
		2293	BEGIN {
		2294	for my $signal (qw(INT HUP TERM)) {
		2295	Event->signal (
		2296	reentrant => 0,
		2297	data => WF_AUTOCANCEL,
		2298	signal => $signal,
		2299	cb => sub {
		2300	cf::cleanup "SIG$signal";
		2301	},
		2302	);
		2303	}
		2304	}
		2305
		2306	sub emergency_save() {
		2307	my $freeze_guard = cf::freeze_mainloop;
		2308
		2309	warn "enter emergency perl save\n";
		2310
		2311	cf::sync_job {
		2312	# use a peculiar iteration method to avoid tripping on perl
		2313	# refcount bugs in for. also avoids problems with players
		2314	# and maps saved/destroyed asynchronously.
		2315	warn "begin emergency player save\n";
		2316	for my $login (keys %cf::PLAYER) {
		2317	my $pl = $cf::PLAYER{$login} or next;
		2318	$pl->valid or next;
		2319	$pl->save;
		2320	}
		2321	warn "end emergency player save\n";
		2322
		2323	warn "begin emergency map save\n";
		2324	for my $path (keys %cf::MAP) {
		2325	my $map = $cf::MAP{$path} or next;
		2326	$map->valid or next;
		2327	$map->save;
		2328	}
		2329	warn "end emergency map save\n";
		2330	};
		2331
		2332	warn "leave emergency perl save\n";
		2333	}
1850		2334
1851	sub reload() {	2335	sub reload() {
1852	# can/must only be called in main	2336	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2337	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2338	warn "can only reload from main coroutine";
1855	return;	2339	return;
1856	}	2340	}
1857		2341
1858	warn "reloading...";	2342	warn "reloading...";
1859		2343
1860	local $FREEZE = 1;	2344	warn "cancelling server ticker";
		2345	$TICK_WATCHER->cancel;
		2346
1861	cf::emergency_save;	2347	cf::emergency_save;
1862		2348
1863	eval {	2349	eval {
1864	# if anything goes wrong in here, we should simply crash as we already saved	2350	# if anything goes wrong in here, we should simply crash as we already saved
1865		2351
1866	# cancel all watchers	2352	warn "syncing database to disk";
		2353	cf::db_sync;
		2354
		2355	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2356	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2357	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2358	}
1870		2359
		2360	warn "flushing outstanding aio requests";
		2361	for (;;) {
		2362	IO::AIO::flush;
		2363	Coro::cede;
		2364	last unless IO::AIO::nreqs;
		2365	warn "iterate...";
		2366	}
		2367
1871	# cancel all extension coros	2368	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2369	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2370	%EXT_CORO = ();
1874		2371
1875	# unload all extensions	2372	warn "removing commands";
1876	for (@exts) {	2373	%COMMAND = ();
		2374
		2375	warn "removing ext commands";
		2376	%EXTCMD = ();
		2377
		2378	warn "unloading/nuking all extensions";
		2379	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2380	warn "... unloading $pkg";
1878	unload_extension $_;	2381
		2382	if (my $cb = $pkg->can ("unload")) {
		2383	eval {
		2384	$cb->($pkg);
		2385	1
		2386	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2387	}
1880		2388
		2389	warn "... nuking $pkg";
		2390	Symbol::delete_package $pkg;
		2391	}
		2392
1881	# unload all modules loaded from $LIBDIR	2393	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2394	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2395	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2396
1885	warn "removing <$k>";	2397	warn "... unloading $k";
1886	delete $INC{$k};	2398	delete $INC{$k};
1887		2399
1888	$k =~ s/\.pm$//;	2400	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2401	$k =~ s/\//::/g;
1890		2402
…		…
1893	}	2405	}
1894		2406
1895	Symbol::delete_package $k;	2407	Symbol::delete_package $k;
1896	}	2408	}
1897		2409
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2410	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2411	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2413
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2414	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2415	delete $INC{"cf.pm"};
1911		2416
1912	# don't, removes xs symbols, too,	2417	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2418	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2419	#Symbol::delete_package __PACKAGE__;
1915		2420
1916	# reload cf.pm	2421	warn "unload completed, starting to reload now";
		2422
1917	warn "reloading cf.pm";	2423	warn "reloading cf.pm";
1918	require cf;	2424	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2426
1921	# load config and database again	2427	warn "loading config and database again";
1922	cf::cfg_load;	2428	cf::cfg_load;
1923	cf::db_load;	2429	cf::db_load;
1924		2430
1925	# load extensions
1926	warn "load extensions";	2431	warn "loading extensions";
1927	cf::load_extensions;	2432	cf::load_extensions;
1928		2433
1929	# reattach attachments to objects	2434	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2435	_global_reattach;
		2436	warn "reattaching attachments to maps";
		2437	reattach $_ for values %MAP;
		2438
		2439	warn "restarting server ticker";
		2440
		2441	$TICK_WATCHER->start;
1932	};	2442	};
1933		2443
1934	if ($@) {	2444	if ($@) {
1935	warn $@;	2445	warn $@;
1936	warn "error while reloading, exiting.";	2446	warn "error while reloading, exiting.";
1937	exit 1;	2447	exit 1;
1938	}	2448	}
1939		2449
1940	warn "reloaded successfully";	2450	warn "reloaded";
1941	};	2451	};
1942		2452
1943	#############################################################################	2453	our $RELOAD_WATCHER; # used only during reload
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2454
1988	register_command "reload" => sub {	2455	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2456	my ($who, $arg) = @_;
1990		2457
1991	if ($who->flag (FLAG_WIZ)) {	2458	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2459	$who->message ("reloading server.");
		2460
		2461	# doing reload synchronously and two reloads happen back-to-back,
		2462	# coro crashes during coro_state_free->destroy here.
		2463
		2464	$RELOAD_WATCHER ||= Event->timer (
		2465	reentrant => 0,
		2466	after => 0,
		2467	data => WF_AUTOCANCEL,
		2468	cb => sub {
1993	reload;	2469	reload;
1994	$who->message ("end of reload.");	2470	undef $RELOAD_WATCHER;
		2471	},
		2472	);
1995	}	2473	}
1996	};	2474	};
1997		2475
1998	unshift @INC, $LIBDIR;	2476	unshift @INC, $LIBDIR;
		2477
		2478	my $bug_warning = 0;
1999		2479
2000	$TICK_WATCHER = Event->timer (	2480	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2481	reentrant => 0,
		2482	parked => 1,
2002	prio => 0,	2483	prio => -1,
2003	at => $NEXT_TICK || $TICK,	2484	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2485	data => WF_AUTOCANCEL,
2005	cb => sub {	2486	cb => sub {
2006	unless ($FREEZE) {	2487	if ($Coro::current != $Coro::main) {
		2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2489	unless ++$bug_warning > 10;
		2490	return;
		2491	}
		2492
		2493	$NOW = Event::time;
		2494
2007	cf::server_tick; # one server iteration	2495	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2496	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2497	$NEXT_TICK += $TICK;
		2498
		2499	$WAIT_FOR_TICK->broadcast;
		2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2501
		2502	my $AFTER = Event::time;
		2503	warn $AFTER - $NOW;#d#
2012		2504
2013	# if we are delayed by four ticks or more, skip them all	2505	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2506	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2507
2016	$TICK_WATCHER->at ($NEXT_TICK);	2508	$TICK_WATCHER->at ($NEXT_TICK);
…		…
2018	},	2510	},
2019	);	2511	);
2020		2512
2021	IO::AIO::max_poll_time $TICK * 0.2;	2513	IO::AIO::max_poll_time $TICK * 0.2;
2022		2514
2023	Event->io (	2515	undef $Coro::AIO::WATCHER;
		2516	$AIO_POLL_WATCHER = Event->io (
		2517	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2518	fd => IO::AIO::poll_fileno,
2025	poll => 'r',	2519	poll => 'r',
2026	prio => 5,	2520	prio => 6,
2027	data => WF_AUTOCANCEL,	2521	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,	2522	cb => \&IO::AIO::poll_cb,
2029	);	2523	);
2030		2524
2031	Event->timer (	2525	$WRITE_RUNTIME_WATCHER = Event->timer (
		2526	reentrant => 0,
2032	data => WF_AUTOCANCEL,	2527	data => WF_AUTOCANCEL,
2033	after => 0,	2528	after => 1,
2034	interval => 10,	2529	interval => 10,
2035	cb => sub {	2530	prio => 6, # keep it lowest so it acts like a watchdog
2036	(Coro::unblock_sub {	2531	cb => Coro::unblock_sub {
2037	write_runtime	2532	write_runtime
2038	or warn "ERROR: unable to write runtime file: $!";	2533	or warn "ERROR: unable to write runtime file: $!";
2039	})->();
2040	},	2534	},
2041	);	2535	);
2042		2536
		2537	END { cf::emergency_save }
		2538
2043	1	2539	1
2044		2540

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