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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.194 by root, Wed Jan 24 22:42:49 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 3.5 ();
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 ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	286	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	294	=cut
198		295
199	sub sync_job(&) {	296	sub sync_job(&) {
200	my ($job) = @_;	297	my ($job) = @_;
201		298
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($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
212	# TODO: use suspend/resume instead	303	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	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;
214	$coro->prio (Coro::PRIO_MAX);	314	})->prio (Coro::PRIO_MAX);
		315
215	while ($busy) {	316	while ($busy) {
216	Coro::cede_notself;	317	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	318	}
		319
		320	wantarray ? @res : $res[0]
219	} else {	321	} else {
220	$coro->join;	322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
221	}	325	}
222
223	wantarray ? @res : $res[0]
224	}	326	}
225		327
226	=item $coro = cf::coro { BLOCK }	328	=item $coro = cf::async_ext { BLOCK }
227		329
228	Creates and returns a new coro. This coro is automcatially being canceled	330	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	331	extension calling this is being unloaded.
230		332
231	=cut	333	=cut
232		334
233	sub coro(&) {	335	sub async_ext(&) {
234	my $cb = shift;	336	my $cb = shift;
235		337
236	my $coro; $coro = async {	338	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		339
243	$coro->on_destroy (sub {	340	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	341	delete $EXT_CORO{$coro+0};
245	});	342	});
246	$EXT_CORO{$coro+0} = $coro;	343	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	349	my $runtime = cf::localdir . "/runtime";
253		350
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	352	or return;
256		353
257	my $value = $cf::RUNTIME;	354	my $value = $cf::RUNTIME + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	359	and return;
260		360
261	aio_fsync $fh	361	aio_fsync $fh
262	and return;	362	and return;
…		…
271	}	371	}
272		372
273	=back	373	=back
274		374
275	=cut	375	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		376
387	#############################################################################	377	#############################################################################
388		378
389	=head2 ATTACHABLE OBJECTS	379	=head2 ATTACHABLE OBJECTS
390		380
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	507	our @CB_MAP = ();
518		508
519	my %attachment;	509	my %attachment;
520		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
521	sub _attach_cb($$$$) {	517	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
523		519
524	use sort 'stable';	520	use sort 'stable';
525		521
…		…
696	# object support	692	# object support
697		693
698	sub reattach {	694	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	695	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		699
702	my $registry = $obj->registry;	700	my $registry = $obj->registry;
703		701
704	@$registry = ();	702	@$registry = ();
705		703
…		…
798	or return;	796	or return;
799		797
800	unless (aio_stat "$filename.pst") {	798	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	799	(aio_load "$filename.pst", $av) >= 0
802	or return;	800	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	801	$av = eval { (Storable::thaw $av)->{objs} };
804	}	802	}
805		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	806	return ($data, $av);
807	}	807	}
808		808
809	#############################################################################	809	#############################################################################
810	# command handling &c	810	# command handling &c
…		…
835	=cut	835	=cut
836		836
837	sub register_extcmd {	837	sub register_extcmd {
838	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
839		839
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
844	}	841	}
845		842
846	cf::player->attach (	843	cf::player->attach (
847	on_command => sub {	844	on_command => sub {
848	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
…		…
861		858
862	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
863		860
864	if (ref $msg) {	861	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	865	}
869	}	866	}
870	} else {	867	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		870
874	cf::override;	871	cf::override;
875	},	872	},
876	);	873	);
877		874
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	875	sub load_extension {
885	my ($path) = @_;	876	my ($path) = @_;
886		877
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	879	my $base = $1;
889	my $pkg = $1;	880	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
892		883
893	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
894		885
895	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
896	or die "$path: $!";	887	or die "$path: $!";
897		888
898	my $source =	889	my $source =
899	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
902	. "\n};\n1";	893	. "\n};\n1";
903		894
904	eval $source	895	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	897	: "extension disabled.\n";
907		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	899	warn $@;
909	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
910		901	exit 1;
911	# no strict 'refs';	902	}
912	# @{"$pkg\::ISA"} = ext::;	903	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	904	}
927		905
928	# remove commands	906	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	907	}
953		908
954	sub load_extensions {	909	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	911	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
961	}	916	}
962	}	917	}
963		918
964	#############################################################################	919	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		920
1002	=head2 CORE EXTENSIONS	921	=head2 CORE EXTENSIONS
1003		922
1004	Functions and methods that extend core crossfire objects.	923	Functions and methods that extend core crossfire objects.
1005		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
1006	=head3 cf::player	931	=head3 cf::player
1007		932
1008	=over 4	933	=over 4
1009		934
1010	=item cf::player::exists $login	935	=item cf::player::find $login
1011		936
1012	Returns true when the given account exists.	937	Returns the given player object, loading it if necessary (might block).
1013		938
1014	=cut	939	=cut
1015		940
1016	sub cf::player::exists($) {	941	sub playerdir($) {
1017	cf::player::find $_[0]	942	cf::localdir
1018	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
1019	}	1088	}
1020		1089
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1091
1023	Sends an ext reply to the player.	1092	Sends an ext reply to the player.
1024		1093
1025	=cut	1094	=cut
1026		1095
1027	sub cf::player::ext_reply($$$%) {	1096	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1097	my ($self, $id, %msg) = @_;
1029		1098
1030	$msg{msgid} = $id;	1099	$msg{msgid} = $id;
1031		1100
1032	$self->send ("ext " . to_json \%msg);	1101	$self->send ("ext " . cf::to_json \%msg);
1033	}	1102	}
		1103
		1104	package cf;
1034		1105
1035	=back	1106	=back
1036		1107
1037		1108
1038	=head3 cf::map	1109	=head3 cf::map
…		…
1044	package cf::map;	1115	package cf::map;
1045		1116
1046	use Fcntl;	1117	use Fcntl;
1047	use Coro::AIO;	1118	use Coro::AIO;
1048		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
1049	our $MAX_RESET = 7200;	1124	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1125	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1126
1054	sub generate_random_map {	1127	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1128	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1129	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1130	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1134	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1135	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1270	}
1072		1271
1073	# and all this just because we cannot iterate over	1272	# and all this just because we cannot iterate over
1074	# all maps in C++...	1273	# all maps in C++...
1075	sub change_all_map_light {	1274	sub change_all_map_light {
1076	my ($change) = @_;	1275	my ($change) = @_;
1077		1276
1078	$_->change_map_light ($change) for values %cf::MAP;	1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
1079	}	1279	}
1080		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
1081	sub try_load_header($) {	1289	sub load_header_from($) {
1082	my ($path) = @_;	1290	my ($self, $path) = @_;
1083		1291
1084	utf8::encode $path;	1292	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1293	aio_open $path, O_RDONLY, 0
1086	or return;	1294	or return;
1087		1295
1088	my $map = cf::map::new	1296	$self->_load_header ($path)
1089	or return;	1297	or return;
1090		1298
1091	$map->load_header ($path)	1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
1092	or return;	1342	or return;
		1343	$self->prepare_orig;
		1344	}
1093		1345
1094	$map->{load_path} = $path;	1346	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1347	}
1099		1348
		1349	sub find;
1100	sub find_map {	1350	sub find {
1101	my ($path, $origin) = @_;	1351	my ($path, $origin) = @_;
1102		1352
1103	#warn "find_map<$path,$origin>\n";#d#	1353	$path = normalise $path, $origin && $origin->path;
1104		1354
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1355	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1356
1108	$cf::MAP{$key} || do {	1357	$cf::MAP{$path} || do {
1109	# do it the slow way	1358	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1359	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1360	or return;
1124		1361
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1362	$map->{last_save} = $cf::RUNTIME;
1135		1363
		1364	$map->load_header
		1365	or return;
		1366
1136	$map->reset if $map->should_reset;	1367	if ($map->should_reset) {
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
		1370	$map->reset;
		1371	undef $guard;
		1372	return find $path;
		1373	}
1137		1374
1138	$cf::MAP{$key} = $map	1375	$cf::MAP{$path} = $map
1139	}	1376	}
1140	}	1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
1141		1381
1142	sub load {	1382	sub load {
1143	my ($self) = @_;	1383	my ($self) = @_;
1144		1384
		1385	my $path = $self->{path};
		1386	my $guard = cf::lock_acquire "map_load:$path";
		1387
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1388	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1389
1147	$self->in_memory (cf::MAP_LOADING);	1390	$self->in_memory (cf::MAP_LOADING);
1148		1391
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1392	$self->alloc;
		1393
		1394	$self->pre_load;
		1395
1152	$self->load_objects ($self->{load_path}, 1)	1396	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1397	or return;
1154		1398
		1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1400	if delete $self->{load_original};
		1401
1155	if (my $uniq = $path->uniq_path) {	1402	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1403	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1404	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1405	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1406	$self->_load_objects ($uniq, 0);
1160	}	1407	}
1161	}	1408	}
		1409
		1410	Coro::cede;
1162		1411
1163	# now do the right thing for maps	1412	# now do the right thing for maps
1164	$self->link_multipart_objects;	1413	$self->link_multipart_objects;
1165		1414
1166	if ($self->{path}->is_style_map) {	1415	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1416	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1417	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1418	$self->update_buttons;
		1419	Coro::cede;
1173	$self->set_darkness_map;	1420	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1421	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1422	unless $self->difficulty;
		1423	Coro::cede;
1176	$self->activate;	1424	$self->activate;
1177	}	1425	}
1178		1426
		1427	$self->post_load;
		1428
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1429	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1430	}
1181		1431
1182	sub load_map_sync {	1432	sub customise_for {
		1433	my ($self, $ob) = @_;
		1434
		1435	return find "~" . $ob->name . "/" . $self->{path}
		1436	if $self->per_player;
		1437
		1438	$self
		1439	}
		1440
		1441	# find and load all maps in the 3x3 area around a map
		1442	sub load_diag {
		1443	my ($map) = @_;
		1444
		1445	my @diag; # diagonal neighbours
		1446
		1447	for (0 .. 3) {
		1448	my $neigh = $map->tile_path ($_)
		1449	or next;
		1450	$neigh = find $neigh, $map
		1451	or next;
		1452	$neigh->load;
		1453
		1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1456	}
		1457
		1458	for (@diag) {
		1459	my $neigh = find @$_
		1460	or next;
		1461	$neigh->load;
		1462	}
		1463	}
		1464
		1465	sub find_sync {
1183	my ($path, $origin) = @_;	1466	my ($path, $origin) = @_;
1184		1467
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1468	cf::sync_job { find $path, $origin }
		1469	}
1186		1470
1187	cf::sync_job {	1471	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1472	my ($map) = @_;
1189	or return;	1473
		1474	cf::sync_job { $map->load };
		1475	}
		1476
		1477	our %MAP_PREFETCH;
		1478	our $MAP_PREFETCHER = undef;
		1479
		1480	sub find_async {
		1481	my ($path, $origin) = @_;
		1482
		1483	$path = normalise $path, $origin && $origin->{path};
		1484
		1485	if (my $map = $cf::MAP{$path}) {
		1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1487	}
		1488
		1489	undef $MAP_PREFETCH{$path};
		1490	$MAP_PREFETCHER ||= cf::async {
		1491	while (%MAP_PREFETCH) {
		1492	for my $path (keys %MAP_PREFETCH) {
		1493	my $map = find $path
		1494	or next;
1190	$map->load;	1495	$map->load;
1191	$map	1496
		1497	delete $MAP_PREFETCH{$path};
		1498	}
		1499	}
		1500	undef $MAP_PREFETCHER;
1192	}	1501	};
		1502	$MAP_PREFETCHER->prio (6);
		1503
		1504	()
1193	}	1505	}
1194		1506
1195	sub save {	1507	sub save {
1196	my ($self) = @_;	1508	my ($self) = @_;
1197		1509
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1510	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1511
1201	$self->{last_save} = $cf::RUNTIME;	1512	$self->{last_save} = $cf::RUNTIME;
1202		1513
1203	return unless $self->dirty;	1514	return unless $self->dirty;
1204		1515
		1516	my $save = $self->save_path; utf8::encode $save;
		1517	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1518
1205	$self->{load_path} = $save;	1519	$self->{load_path} = $save;
1206		1520
1207	return if $self->{deny_save};	1521	return if $self->{deny_save};
1208		1522
1209	warn "saving map ", $self->path;	1523	local $self->{last_access} = $self->last_access;#d#
		1524
		1525	cf::async {
		1526	$_->contr->save for $self->players;
		1527	};
1210		1528
1211	if ($uniq) {	1529	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1532	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1533	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1534	}
1217	}	1535	}
1218		1536
1219	sub swap_out {	1537	sub swap_out {
1220	my ($self) = @_;	1538	my ($self) = @_;
		1539
		1540	# save first because save cedes
		1541	$self->save;
		1542
		1543	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1544
1222	return if $self->players;	1545	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1546	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1547	return if $self->{deny_save};
1225		1548
1226	$self->save;
1227	$self->clear;	1549	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1550	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1551	}
1230		1552
		1553	sub reset_at {
		1554	my ($self) = @_;
		1555
		1556	# TODO: safety, remove and allow resettable per-player maps
		1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1558	return 1e99 if $self->{deny_reset};
		1559
		1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1562
		1563	$time + $to
		1564	}
		1565
1231	sub should_reset {	1566	sub should_reset {
1232	my ($map) = @_;	1567	my ($self) = @_;
1233		1568
1234	# TODO: safety, remove and allow resettable per-player maps	1569	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1570	}
1243		1571
1244	sub reset {	1572	sub reset {
1245	my ($self) = @_;	1573	my ($self) = @_;
1246		1574
		1575	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1576
1247	return if $self->players;	1577	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1578	return if $self->isa ("ext::map_per_player");#d#
1249		1579
1250	warn "resetting map ", $self->path;#d#	1580	warn "resetting map ", $self->path;#d#
1251		1581
1252	utf8::encode (my $save = $self->{path}->save_path);	1582	delete $cf::MAP{$self->path};
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1583
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1584	$self->in_memory (cf::MAP_SWAPPED);
		1585	$self->clear;
1255		1586
1256	$_->clear_links_to ($self) for values %cf::MAP;	1587	$_->clear_links_to ($self) for values %cf::MAP;
1257		1588
		1589	$self->unlink_save;
1258	$self->clear;	1590	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1591	}
1262		1592
1263	sub customise_for {	1593	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1594
1266	if ($map->per_player) {	1595	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1596	my ($self) = @_;
1268	}
1269		1597
1270	$map	1598	delete $cf::MAP{$self->path};
1271	}
1272		1599
1273	sub emergency_save {	1600	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1601
1276	warn "enter emergency map save\n";	1602	bless $self, "cf::map";
		1603	delete $self->{deny_reset};
		1604	$self->{deny_save} = 1;
		1605	$self->reset_timeout (1);
		1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1607
1278	cf::sync_job {	1608	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1609
1280	$_->save for values %cf::MAP;	1610	$self->reset; # polite request, might not happen
		1611	}
		1612
		1613	=item cf::map::unique_maps
		1614
		1615	Returns an arrayref of paths of all shared maps that have
		1616	instantiated unique items. May block.
		1617
		1618	=cut
		1619
		1620	sub unique_maps() {
		1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1622	or return;
		1623
		1624	my @paths;
		1625
		1626	for (@$files) {
		1627	utf8::decode $_;
		1628	next if /\.pst$/;
		1629	next unless /^$PATH_SEP/o;
		1630
		1631	s/\.map$//;
		1632	push @paths, $_;
1281	};	1633	}
1282		1634
1283	warn "end emergency map save\n";	1635	\@paths
1284	}	1636	}
1285		1637
1286	package cf;	1638	package cf;
1287		1639
1288	=back	1640	=back
1289		1641
		1642	=head3 cf::object
		1643
		1644	=cut
		1645
		1646	package cf::object;
		1647
		1648	=over 4
		1649
		1650	=item $ob->inv_recursive
		1651
		1652	Returns the inventory of the object _and_ their inventories, recursively.
		1653
		1654	=cut
		1655
		1656	sub inv_recursive_;
		1657	sub inv_recursive_ {
		1658	map { $_, inv_recursive_ $_->inv } @_
		1659	}
		1660
		1661	sub inv_recursive {
		1662	inv_recursive_ inv $_[0]
		1663	}
		1664
		1665	package cf;
		1666
		1667	=back
1290		1668
1291	=head3 cf::object::player	1669	=head3 cf::object::player
1292		1670
1293	=over 4	1671	=over 4
1294		1672
…		…
1330	(ref $cf::CFG{"may_$access"}	1708	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1709	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1710	: $cf::CFG{"may_$access"})
1333	}	1711	}
1334		1712
		1713	=item $player_object->enter_link
		1714
		1715	Freezes the player and moves him/her to a special map (C<{link}>).
		1716
		1717	The player should be reasonably safe there for short amounts of time. You
		1718	I<MUST> call C<leave_link> as soon as possible, though.
		1719
		1720	Will never block.
		1721
		1722	=item $player_object->leave_link ($map, $x, $y)
		1723
		1724	Moves the player out of the special C<{link}> map onto the specified
		1725	map. If the map is not valid (or omitted), the player will be moved back
		1726	to the location he/she was before the call to C<enter_link>, or, if that
		1727	fails, to the emergency map position.
		1728
		1729	Might block.
		1730
		1731	=cut
		1732
		1733	sub link_map {
		1734	unless ($LINK_MAP) {
		1735	$LINK_MAP = cf::map::find "{link}"
		1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1737	$LINK_MAP->load;
		1738	}
		1739
		1740	$LINK_MAP
		1741	}
		1742
1335	sub cf::object::player::enter_link {	1743	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1744	my ($self) = @_;
1337		1745
1338	return if $self->map == $LINK_MAP;	1746	$self->deactivate_recursive;
1339		1747
		1748	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1749
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1751	if $self->map;
1342		1752
1343	$self->enter_map ($LINK_MAP, 20, 20);	1753	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1754	}
1346		1755
1347	sub cf::object::player::leave_link {	1756	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1757	my ($self, $map, $x, $y) = @_;
1349		1758
1350	my $link_pos = delete $self->{_link_pos};	1759	my $link_pos = delete $self->{_link_pos};
1351		1760
1352	unless ($map) {	1761	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1762	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1763	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1764	$map = cf::map::find $map;
1358		1765
1359	unless ($map) {	1766	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1767	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1768	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1769	or die "FATAL: cannot load emergency map\n";
1363	}	1770	}
1364	}	1771	}
1365		1772
1366	($x, $y) = (-1, -1)	1773	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1776	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1777	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1778	if $x <=0 && $y <= 0;
1372		1779
1373	$map->load;	1780	$map->load;
		1781	$map->load_diag;
1374		1782
		1783	return unless $self->contr->active;
1375	$self->activate_recursive;	1784	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	1785	$self->enter_map ($map, $x, $y);
1377	}	1786	}
1378		1787
		1788	cf::player->attach (
		1789	on_logout => sub {
		1790	my ($pl) = @_;
		1791
		1792	# abort map switching before logout
		1793	if ($pl->ob->{_link_pos}) {
		1794	cf::sync_job {
		1795	$pl->ob->leave_link
		1796	};
		1797	}
		1798	},
		1799	on_login => sub {
		1800	my ($pl) = @_;
		1801
		1802	# try to abort aborted map switching on player login :)
		1803	# should happen only on crashes
		1804	if ($pl->ob->{_link_pos}) {
		1805	$pl->ob->enter_link;
		1806	(async {
		1807	# we need this sleep as the login has a concurrent enter_exit running
		1808	# and this sleep increases chances of the player not ending up in scorn
		1809	$pl->ob->reply (undef,
		1810	"There was an internal problem at your last logout, "
		1811	. "the server will try to bring you to your intended destination in a second.",
		1812	cf::NDI_RED);
		1813	Coro::Timer::sleep 1;
		1814	$pl->ob->leave_link;
		1815	})->prio (2);
		1816	}
		1817	},
		1818	);
		1819
1379	=item $player_object->goto_map ($map, $x, $y)	1820	=item $player_object->goto ($path, $x, $y)
1380		1821
1381	=cut	1822	=cut
1382		1823
1383	sub cf::object::player::goto_map {	1824	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1825	my ($self, $path, $x, $y) = @_;
1385		1826
1386	$self->enter_link;	1827	$self->enter_link;
1387		1828
1388	(Coro::async {	1829	(async {
1389	$path = new cf::path $path;
1390
1391	my $map = cf::map::find_map $path->as_string;	1830	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1831	$map = $map->customise_for ($self) if $map;
1393		1832
1394	warn "entering ", $map->path, " at ($x, $y)\n"	1833	# warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1834	# if $map;
		1835
		1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1837
1397	$self->leave_link ($map, $x, $y);	1838	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1839	})->prio (1);
1399	}	1840	}
1400		1841
…		…
1404		1845
1405	sub parse_random_map_params {	1846	sub parse_random_map_params {
1406	my ($spec) = @_;	1847	my ($spec) = @_;
1407		1848
1408	my $rmp = { # defaults	1849	my $rmp = { # defaults
1409	xsize => 10,	1850	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1851	ysize => (cf::rndm 15, 40),
		1852	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1853	#layout => string,
1411	};	1854	};
1412		1855
1413	for (split /\n/, $spec) {	1856	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1857	my ($k, $v) = split /\s+/, $_, 2;
1415		1858
…		…
1419	$rmp	1862	$rmp
1420	}	1863	}
1421		1864
1422	sub prepare_random_map {	1865	sub prepare_random_map {
1423	my ($exit) = @_;	1866	my ($exit) = @_;
		1867
		1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1869
1425	# all this does is basically replace the /! path by	1870	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1871	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1872	# that depends on the exit object
1428		1873
…		…
1437		1882
1438	$rmp->{random_seed} ||= $exit->random_seed;	1883	$rmp->{random_seed} ||= $exit->random_seed;
1439		1884
1440	my $data = cf::to_json $rmp;	1885	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1886	my $md5 = Digest::MD5::md5_hex $data;
		1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1888
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	1890	aio_write $fh, 0, (length $data), $data, 0;
		1891	undef $fh;
		1892	aio_rename "$meta~", $meta;
1445		1893
1446	$exit->slaying ("?random/$md5");	1894	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1895	$exit->msg (undef);
1448	}	1896	}
1449	}	1897	}
…		…
1453		1901
1454	return unless $self->type == cf::PLAYER;	1902	return unless $self->type == cf::PLAYER;
1455		1903
1456	$self->enter_link;	1904	$self->enter_link;
1457		1905
1458	(Coro::async {	1906	(async {
		1907	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1908	unless (eval {
1460
1461	prepare_random_map $exit	1909	prepare_random_map $exit
1462	if $exit->slaying eq "/!";	1910	if $exit->slaying eq "/!";
1463		1911
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	1912	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1466		1914
1467	1;	1915	1;
1468	}) {	1916	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1917	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	1918	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	1919	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1920	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1921
1474	warn "ERROR in enter_exit: $@";	1922	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1923	$self->leave_link;
1476	}	1924	}
…		…
1527	on_reply => sub {	1975	on_reply => sub {
1528	my ($ns, $msg) = @_;	1976	my ($ns, $msg) = @_;
1529		1977
1530	# this weird shuffling is so that direct followup queries	1978	# this weird shuffling is so that direct followup queries
1531	# get handled first	1979	# get handled first
1532	my $queue = delete $ns->{query_queue};	1980	my $queue = delete $ns->{query_queue}
		1981	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		1982
1534	(shift @$queue)->[1]->($msg);	1983	(shift @$queue)->[1]->($msg);
1535		1984
1536	push @{ $ns->{query_queue} }, @$queue;	1985	push @{ $ns->{query_queue} }, @$queue;
1537		1986
…		…
1543	}	1992	}
1544	}	1993	}
1545	},	1994	},
1546	);	1995	);
1547		1996
1548	=item $client->coro (\&cb)	1997	=item $client->async (\&cb)
1549		1998
1550	Create a new coroutine, running the specified callback. The coroutine will	1999	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2000	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2001	or loss of connection).
1553		2002
1554	=cut	2003	=cut
1555		2004
1556	sub cf::client::coro {	2005	sub cf::client::async {
1557	my ($self, $cb) = @_;	2006	my ($self, $cb) = @_;
1558		2007
1559	my $coro; $coro = async {	2008	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2009
1566	$coro->on_destroy (sub {	2010	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2011	delete $self->{_coro}{$coro+0};
1568	});	2012	});
1569		2013
…		…
1741		2185
1742	{	2186	{
1743	my $path = cf::localdir . "/database.pst";	2187	my $path = cf::localdir . "/database.pst";
1744		2188
1745	sub db_load() {	2189	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };	2190	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	2191	}
1749		2192
1750	my $pid;	2193	my $pid;
1751		2194
1752	sub db_save() {	2195	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;	2196	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {	2197	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;	2198	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";	2199	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;	2200	rename "$path~", $path;
…		…
1765	sub db_sync() {	2207	sub db_sync() {
1766	db_save if $dirty;	2208	db_save if $dirty;
1767	undef $dirty;	2209	undef $dirty;
1768	}	2210	}
1769		2211
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2212	my $idle = Event->idle (
1771	db_sync;	2213	reentrant => 0,
		2214	min => 10,
		2215	max => 20,
		2216	repeat => 0,
		2217	data => WF_AUTOCANCEL,
		2218	cb => \&db_sync,
1772	});	2219	);
1773		2220
1774	sub db_dirty() {	2221	sub db_dirty() {
1775	$dirty = 1;	2222	$dirty = 1;
1776	$idle->start;	2223	$idle->start;
1777	}	2224	}
…		…
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2254	or return;
1808		2255
1809	local $/;	2256	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
1811	}	2271	}
1812		2272
1813	sub main {	2273	sub main {
1814	# we must not ever block the main coroutine	2274	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2275	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2276	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2277	(async {
1818	Event::one_event;	2278	Event::one_event;
1819	})->();	2279	})->prio (Coro::PRIO_MAX);
1820	};	2280	};
1821		2281
1822	cfg_load;	2282	cfg_load;
1823	db_load;	2283	db_load;
1824	load_extensions;	2284	load_extensions;
		2285
		2286	$TICK_WATCHER->start;
1825	Event::loop;	2287	Event::loop;
1826	}	2288	}
1827		2289
1828	#############################################################################	2290	#############################################################################
1829	# initialisation	2291	# initialisation and cleanup
1830		2292
		2293	# install some emergency cleanup handlers
		2294	BEGIN {
		2295	for my $signal (qw(INT HUP TERM)) {
		2296	Event->signal (
		2297	reentrant => 0,
		2298	data => WF_AUTOCANCEL,
		2299	signal => $signal,
		2300	prio => 0,
		2301	cb => sub {
		2302	cf::cleanup "SIG$signal";
		2303	},
		2304	);
		2305	}
		2306	}
		2307
		2308	sub emergency_save() {
		2309	my $freeze_guard = cf::freeze_mainloop;
		2310
		2311	warn "enter emergency perl save\n";
		2312
		2313	cf::sync_job {
		2314	# use a peculiar iteration method to avoid tripping on perl
		2315	# refcount bugs in for. also avoids problems with players
		2316	# and maps saved/destroyed asynchronously.
		2317	warn "begin emergency player save\n";
		2318	for my $login (keys %cf::PLAYER) {
		2319	my $pl = $cf::PLAYER{$login} or next;
		2320	$pl->valid or next;
		2321	$pl->save;
		2322	}
		2323	warn "end emergency player save\n";
		2324
		2325	warn "begin emergency map save\n";
		2326	for my $path (keys %cf::MAP) {
		2327	my $map = $cf::MAP{$path} or next;
		2328	$map->valid or next;
		2329	$map->save;
		2330	}
		2331	warn "end emergency map save\n";
		2332	};
		2333
		2334	warn "leave emergency perl save\n";
		2335	}
		2336
1831	sub perl_reload() {	2337	sub reload() {
1832	# can/must only be called in main	2338	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2339	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2340	warn "can only reload from main coroutine";
1835	return;	2341	return;
1836	}	2342	}
1837		2343
1838	warn "reloading...";	2344	warn "reloading...";
1839		2345
1840	local $FREEZE = 1;	2346	warn "cancelling server ticker";
		2347	$TICK_WATCHER->cancel;
		2348
1841	cf::emergency_save;	2349	cf::emergency_save;
1842		2350
1843	eval {	2351	eval {
1844	# if anything goes wrong in here, we should simply crash as we already saved	2352	# if anything goes wrong in here, we should simply crash as we already saved
1845		2353
1846	# cancel all watchers	2354	warn "syncing database to disk";
		2355	cf::db_sync;
		2356
		2357	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2358	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2359	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2360	}
1850		2361
		2362	warn "flushing outstanding aio requests";
		2363	for (;;) {
		2364	IO::AIO::flush;
		2365	Coro::cede;
		2366	last unless IO::AIO::nreqs;
		2367	warn "iterate...";
		2368	}
		2369
1851	# cancel all extension coros	2370	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2371	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2372	%EXT_CORO = ();
1854		2373
1855	# unload all extensions	2374	warn "removing commands";
1856	for (@exts) {	2375	%COMMAND = ();
		2376
		2377	warn "removing ext commands";
		2378	%EXTCMD = ();
		2379
		2380	warn "unloading/nuking all extensions";
		2381	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2382	warn "... unloading $pkg";
1858	unload_extension $_;	2383
		2384	if (my $cb = $pkg->can ("unload")) {
		2385	eval {
		2386	$cb->($pkg);
		2387	1
		2388	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2389	}
1860		2390
		2391	warn "... nuking $pkg";
		2392	Symbol::delete_package $pkg;
		2393	}
		2394
1861	# unload all modules loaded from $LIBDIR	2395	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2396	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2397	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2398
1865	warn "removing <$k>";	2399	warn "... unloading $k";
1866	delete $INC{$k};	2400	delete $INC{$k};
1867		2401
1868	$k =~ s/\.pm$//;	2402	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2403	$k =~ s/\//::/g;
1870		2404
…		…
1873	}	2407	}
1874		2408
1875	Symbol::delete_package $k;	2409	Symbol::delete_package $k;
1876	}	2410	}
1877		2411
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2412	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2413	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2415
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2416	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2417	delete $INC{"cf.pm"};
1891		2418
1892	# don't, removes xs symbols, too,	2419	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2420	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2421	#Symbol::delete_package __PACKAGE__;
1895		2422
1896	# reload cf.pm	2423	warn "unload completed, starting to reload now";
		2424
1897	warn "reloading cf.pm";	2425	warn "reloading cf.pm";
1898	require cf;	2426	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2428
1901	# load config and database again	2429	warn "loading config and database again";
1902	cf::cfg_load;	2430	cf::cfg_load;
1903	cf::db_load;	2431	cf::db_load;
1904		2432
1905	# load extensions
1906	warn "load extensions";	2433	warn "loading extensions";
1907	cf::load_extensions;	2434	cf::load_extensions;
1908		2435
1909	# reattach attachments to objects	2436	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2437	_global_reattach;
		2438	warn "reattaching attachments to maps";
		2439	reattach $_ for values %MAP;
		2440
		2441	warn "restarting server ticker";
		2442
		2443	$TICK_WATCHER->start;
1912	};	2444	};
1913		2445
1914	if ($@) {	2446	if ($@) {
1915	warn $@;	2447	warn $@;
1916	warn "error while reloading, exiting.";	2448	warn "error while reloading, exiting.";
1917	exit 1;	2449	exit 1;
1918	}	2450	}
1919		2451
1920	warn "reloaded successfully";	2452	warn "reloaded";
1921	};	2453	};
1922		2454
1923	#############################################################################	2455	our $RELOAD_WATCHER; # used only during reload
1924		2456
1925	unless ($LINK_MAP) {
1926	$LINK_MAP = cf::map::new;
1927
1928	$LINK_MAP->width (41);
1929	$LINK_MAP->height (41);
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2457	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2458	my ($who, $arg) = @_;
1970		2459
1971	if ($who->flag (FLAG_WIZ)) {	2460	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2461	$who->message ("reloading server.");
		2462
		2463	# doing reload synchronously and two reloads happen back-to-back,
		2464	# coro crashes during coro_state_free->destroy here.
		2465
		2466	$RELOAD_WATCHER ||= Event->timer (
		2467	reentrant => 0,
		2468	after => 0,
		2469	data => WF_AUTOCANCEL,
		2470	cb => sub {
		2471	reload;
		2472	undef $RELOAD_WATCHER;
		2473	},
		2474	);
1975	}	2475	}
1976	};	2476	};
1977		2477
1978	unshift @INC, $LIBDIR;	2478	unshift @INC, $LIBDIR;
		2479
		2480	my $bug_warning = 0;
1979		2481
1980	$TICK_WATCHER = Event->timer (	2482	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2483	reentrant => 0,
		2484	parked => 1,
1982	prio => 0,	2485	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2486	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2487	data => WF_AUTOCANCEL,
1985	cb => sub {	2488	cb => sub {
1986	unless ($FREEZE) {	2489	if ($Coro::current != $Coro::main) {
		2490	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2491	unless ++$bug_warning > 10;
		2492	return;
		2493	}
		2494
		2495	$NOW = Event::time;
		2496
1987	cf::server_tick; # one server iteration	2497	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2498	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2499	$NEXT_TICK += $TICK;
		2500
		2501	$WAIT_FOR_TICK->broadcast;
		2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2503
		2504	Event::sweep;
		2505	Coro::cede_notself;
		2506
		2507	# my $AFTER = Event::time;
		2508	# warn $AFTER - $NOW;#d#
1992		2509
1993	# if we are delayed by four ticks or more, skip them all	2510	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2512
1996	$TICK_WATCHER->at ($NEXT_TICK);	2513	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2514	$TICK_WATCHER->start;
1998	},	2515	},
1999	);	2516	);
2000		2517
2001	IO::AIO::max_poll_time $TICK * 0.2;	2518	IO::AIO::max_poll_time $TICK * 0.1;
2002		2519
2003	Event->io (	2520	undef $Coro::AIO::WATCHER;
		2521	$AIO_POLL_WATCHER = Event->io (
		2522	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2523	fd => IO::AIO::poll_fileno,
2005	poll => 'r',	2524	poll => 'r',
2006	prio => 5,	2525	prio => 6,
2007	data => WF_AUTOCANCEL,	2526	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,	2527	cb => \&IO::AIO::poll_cb,
2009	);	2528	);
2010		2529
2011	Event->timer (	2530	$WRITE_RUNTIME_WATCHER = Event->timer (
		2531	reentrant => 0,
2012	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
2013	after => 0,	2533	after => 1,
2014	interval => 10,	2534	interval => 10,
2015	cb => sub {	2535	prio => 6, # keep it lowest so it acts like a watchdog
2016	(Coro::unblock_sub {	2536	cb => Coro::unblock_sub {
2017	write_runtime	2537	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";	2538	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},	2539	},
2021	);	2540	);
2022		2541
		2542	END { cf::emergency_save }
		2543
2023	1	2544	1
2024		2545

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