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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 1.199 by root, Mon Jan 29 14:46:01 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		87
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	88	sub cf::map::normalise;
78		89
79	#############################################################################	90	#############################################################################
80		91
81	=head2 GLOBAL VARIABLES	92	=head2 GLOBAL VARIABLES
82		93
…		…
106		117
107	=item %cf::CFG	118	=item %cf::CFG
108		119
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	120	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	121	from wherever your confdir points to.
		122
		123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		124
		125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		127	processing has been done. Call C<< ->wait >> on them to maximise the
		128	window of cpu time available, or simply to synchronise to the server tick.
111		129
112	=back	130	=back
113		131
114	=cut	132	=cut
115		133
…		…
119	utf8::encode $msg;	137	utf8::encode $msg;
120		138
121	$msg .= "\n"	139	$msg .= "\n"
122	unless $msg =~ /\n$/;	140	unless $msg =~ /\n$/;
123		141
124	LOG llevError, "cfperl: $msg";	142	LOG llevError, $msg;
125	};	143	};
126	}	144	}
127		145
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		165
148	$Event::DIED = sub {	166	$Event::DIED = sub {
149	warn "error in event callback: @_";	167	warn "error in event callback: @_";
150	};	168	};
151		169
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	170	=head2 UTILITY FUNCTIONS
157		171
158	=over 4	172	=over 4
159		173
		174	=item dumpval $ref
		175
160	=cut	176	=cut
		177
		178	sub dumpval {
		179	eval {
		180	local $SIG{__DIE__};
		181	my $d;
		182	if (1) {
		183	$d = new Data::Dumper([$_[0]], ["*var"]);
		184	$d->Terse(1);
		185	$d->Indent(2);
		186	$d->Quotekeys(0);
		187	$d->Useqq(1);
		188	#$d->Bless(...);
		189	$d->Seen($_[1]) if @_ > 1;
		190	$d = $d->Dump();
		191	}
		192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		193	$d
		194	} || "[unable to dump $_[0]: '$@']";
		195	}
161		196
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	197	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		198
164	=item $ref = cf::from_json $json	199	=item $ref = cf::from_json $json
165		200
…		…
180		215
181	sub to_json($) {	216	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	218	JSON::Syck::Dump $_[0]
184	}	219	}
		220
		221	=item cf::lock_wait $string
		222
		223	Wait until the given lock is available. See cf::lock_acquire.
		224
		225	=item my $lock = cf::lock_acquire $string
		226
		227	Wait until the given lock is available and then acquires it and returns
		228	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		229	for example when the coroutine gets canceled), the lock is automatically
		230	returned.
		231
		232	Lock names should begin with a unique identifier (for example, cf::map::find
		233	uses map_find and cf::map::load uses map_load).
		234
		235	=cut
		236
		237	our %LOCK;
		238
		239	sub lock_wait($) {
		240	my ($key) = @_;
		241
		242	# wait for lock, if any
		243	while ($LOCK{$key}) {
		244	push @{ $LOCK{$key} }, $Coro::current;
		245	Coro::schedule;
		246	}
		247	}
		248
		249	sub lock_acquire($) {
		250	my ($key) = @_;
		251
		252	# wait, to be sure we are not locked
		253	lock_wait $key;
		254
		255	$LOCK{$key} = [];
		256
		257	Coro::guard {
		258	# wake up all waiters, to be on the safe side
		259	$_->ready for @{ delete $LOCK{$key} };
		260	}
		261	}
		262
		263	sub freeze_mainloop {
		264	return unless $TICK_WATCHER->is_active;
		265
		266	my $guard = Coro::guard {
		267	$TICK_WATCHER->start;
		268	$WRITE_RUNTIME_WATCHER->start;
		269	};
		270	$WRITE_RUNTIME_WATCHER->stop;
		271	$TICK_WATCHER->stop;
		272	$guard
		273	}
		274
		275	=item cf::async { BLOCK }
		276
		277	Currently the same as Coro::async_pool, meaning you cannot use
		278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		279	thing you are allowed to do is call C<prio> on it.
		280
		281	=cut
		282
		283	BEGIN { *async = \&Coro::async_pool }
185		284
186	=item cf::sync_job { BLOCK }	285	=item cf::sync_job { BLOCK }
187		286
188	The design of crossfire+ requires that the main coro ($Coro::main) is	287	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	288	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	296	=cut
198		297
199	sub sync_job(&) {	298	sub sync_job(&) {
200	my ($job) = @_;	299	my ($job) = @_;
201		300
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 == $Coro::main) {	301	if ($Coro::current == $Coro::main) {
		302	# this is the main coro, too bad, we have to block
		303	# till the operation succeeds, freezing the server :/
		304
212	# TODO: use suspend/resume instead	305	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	306	# (but this is cancel-safe)
		307	my $freeze_guard = freeze_mainloop;
		308
		309	my $busy = 1;
		310	my @res;
		311
		312	(async {
		313	@res = eval { $job->() };
		314	warn $@ if $@;
		315	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
		317
215	while ($busy) {	318	while ($busy) {
216	Coro::cede_notself;	319	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	320	}
		321
		322	wantarray ? @res : $res[0]
219	} else {	323	} else {
220	$coro->join;	324	# we are in another coroutine, how wonderful, everything just works
		325
		326	$job->()
221	}	327	}
222
223	wantarray ? @res : $res[0]
224	}	328	}
225		329
226	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
227		331
228	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
230		334
231	=cut	335	=cut
232		336
233	sub coro(&) {	337	sub async_ext(&) {
234	my $cb = shift;	338	my $cb = shift;
235		339
236	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		341
243	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
245	});	344	});
246	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	351	my $runtime = cf::localdir . "/runtime";
253		352
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	354	or return;
256		355
257	my $value = $cf::RUNTIME;	356	my $value = $cf::RUNTIME + 90 + 10;
		357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	361	and return;
260		362
261	aio_fsync $fh	363	aio_fsync $fh
262	and return;	364	and return;
…		…
271	}	373	}
272		374
273	=back	375	=back
274		376
275	=cut	377	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($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		378
387	#############################################################################	379	#############################################################################
388		380
389	=head2 ATTACHABLE OBJECTS	381	=head2 ATTACHABLE OBJECTS
390		382
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	509	our @CB_MAP = ();
518		510
519	my %attachment;	511	my %attachment;
520		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
521	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
523		521
524	use sort 'stable';	522	use sort 'stable';
525		523
…		…
696	# object support	694	# object support
697		695
698	sub reattach {	696	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		701
702	my $registry = $obj->registry;	702	my $registry = $obj->registry;
703		703
704	@$registry = ();	704	@$registry = ();
705		705
…		…
798	or return;	798	or return;
799		799
800	unless (aio_stat "$filename.pst") {	800	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	801	(aio_load "$filename.pst", $av) >= 0
802	or return;	802	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	803	$av = eval { (Storable::thaw $av)->{objs} };
804	}	804	}
805		805
		806	warn sprintf "loading %s (%d)\n",
		807	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	808	return ($data, $av);
807	}	809	}
808		810
809	#############################################################################	811	#############################################################################
810	# command handling &c	812	# command handling &c
…		…
835	=cut	837	=cut
836		838
837	sub register_extcmd {	839	sub register_extcmd {
838	my ($name, $cb) = @_;	840	my ($name, $cb) = @_;
839		841
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	842	$EXTCMD{$name} = $cb;
844	}	843	}
845		844
846	cf::player->attach (	845	cf::player->attach (
847	on_command => sub {	846	on_command => sub {
848	my ($pl, $name, $params) = @_;	847	my ($pl, $name, $params) = @_;
…		…
861		860
862	my $msg = eval { from_json $buf };	861	my $msg = eval { from_json $buf };
863		862
864	if (ref $msg) {	863	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	865	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	866	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	867	}
869	}	868	}
870	} else {	869	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		872
874	cf::override;	873	cf::override;
875	},	874	},
876	);	875	);
877		876
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	877	sub load_extension {
885	my ($path) = @_;	878	my ($path) = @_;
886		879
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	881	my $base = $1;
889	my $pkg = $1;	882	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	883	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	884	$pkg = "ext::$pkg";
892		885
893	warn "loading '$path' into '$pkg'\n";	886	warn "... loading '$path' into '$pkg'\n";
894		887
895	open my $fh, "<:utf8", $path	888	open my $fh, "<:utf8", $path
896	or die "$path: $!";	889	or die "$path: $!";
897		890
898	my $source =	891	my $source =
899	"package $pkg; use strict; use utf8;\n"	892	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	893	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	894	. (do { local $/; <$fh> })
902	. "\n};\n1";	895	. "\n};\n1";
903		896
904	eval $source	897	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	898	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	899	: "extension disabled.\n";
907		900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	901	warn $@;
909	$ext_pkg{$base} = $pkg;	902	warn "mandatory extension failed to load, exiting.\n";
910		903	exit 1;
911	# no strict 'refs';	904	}
912	# @{"$pkg\::ISA"} = ext::;	905	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	# }	906	}
927		907
928	# remove commands	908	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	}	909	}
953		910
954	sub load_extensions {	911	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	912	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	913	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	917	} or warn "$ext not loaded: $@";
961	}	918	}
962	}	919	}
963		920
964	#############################################################################	921	#############################################################################
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		922
1002	=head2 CORE EXTENSIONS	923	=head2 CORE EXTENSIONS
1003		924
1004	Functions and methods that extend core crossfire objects.	925	Functions and methods that extend core crossfire objects.
1005		926
		927	=cut
		928
		929	package cf::player;
		930
		931	use Coro::AIO;
		932
1006	=head3 cf::player	933	=head3 cf::player
1007		934
1008	=over 4	935	=over 4
1009		936
1010	=item cf::player::exists $login	937	=item cf::player::find $login
1011		938
1012	Returns true when the given account exists.	939	Returns the given player object, loading it if necessary (might block).
1013		940
1014	=cut	941	=cut
1015		942
1016	sub cf::player::exists($) {	943	sub playerdir($) {
1017	cf::player::find $_[0]	944	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	945	. "/"
		946	. cf::playerdir
		947	. "/"
		948	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		949	}
		950
		951	sub path($) {
		952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		953
		954	(playerdir $login) . "/$login.pl"
		955	}
		956
		957	sub find_active($) {
		958	$cf::PLAYER{$_[0]}
		959	and $cf::PLAYER{$_[0]}->active
		960	and $cf::PLAYER{$_[0]}
		961	}
		962
		963	sub exists($) {
		964	my ($login) = @_;
		965
		966	$cf::PLAYER{$login}
		967	or cf::sync_job { !aio_stat path $login }
		968	}
		969
		970	sub find($) {
		971	return $cf::PLAYER{$_[0]} || do {
		972	my $login = $_[0];
		973
		974	my $guard = cf::lock_acquire "user_find:$login";
		975
		976	$cf::PLAYER{$_[0]} || do {
		977	my $pl = load_pl path $login
		978	or return;
		979	$cf::PLAYER{$login} = $pl
		980	}
		981	}
		982	}
		983
		984	sub save($) {
		985	my ($pl) = @_;
		986
		987	return if $pl->{deny_save};
		988
		989	my $path = path $pl;
		990	my $guard = cf::lock_acquire "user_save:$path";
		991
		992	return if $pl->{deny_save};
		993
		994	aio_mkdir playerdir $pl, 0770;
		995	$pl->{last_save} = $cf::RUNTIME;
		996
		997	$pl->save_pl ($path);
		998	Coro::cede;
		999	}
		1000
		1001	sub new($) {
		1002	my ($login) = @_;
		1003
		1004	my $self = create;
		1005
		1006	$self->ob->name ($login);
		1007	$self->{deny_save} = 1;
		1008
		1009	$cf::PLAYER{$login} = $self;
		1010
		1011	$self
		1012	}
		1013
		1014	=item $pl->quit_character
		1015
		1016	Nukes the player without looking back. If logged in, the connection will
		1017	be destroyed. May block for a long time.
		1018
		1019	=cut
		1020
		1021	sub quit_character {
		1022	my ($pl) = @_;
		1023
		1024	$pl->{deny_save} = 1;
		1025	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1026
		1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1028	$pl->deactivate;
		1029	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1030	$pl->ns->destroy if $pl->ns;
		1031
		1032	my $path = playerdir $pl;
		1033	my $temp = "$path~$cf::RUNTIME~deleting~";
		1034	aio_rename $path, $temp;
		1035	delete $cf::PLAYER{$pl->ob->name};
		1036	$pl->destroy;
		1037	IO::AIO::aio_rmtree $temp;
		1038	}
		1039
		1040	=item cf::player::list_logins
		1041
		1042	Returns am arrayref of all valid playernames in the system, can take a
		1043	while and may block, so not sync_job-capable, ever.
		1044
		1045	=cut
		1046
		1047	sub list_logins {
		1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1049	or return [];
		1050
		1051	my @logins;
		1052
		1053	for my $login (@$dirs) {
		1054	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1055	aio_read $fh, 0, 512, my $buf, 0 or next;
		1056	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1057
		1058	utf8::decode $login;
		1059	push @logins, $login;
		1060	}
		1061
		1062	\@logins
		1063	}
		1064
		1065	=item $player->maps
		1066
		1067	Returns an arrayref of map paths that are private for this
		1068	player. May block.
		1069
		1070	=cut
		1071
		1072	sub maps($) {
		1073	my ($pl) = @_;
		1074
		1075	my $files = aio_readdir playerdir $pl
		1076	or return;
		1077
		1078	my @paths;
		1079
		1080	for (@$files) {
		1081	utf8::decode $_;
		1082	next if /\.(?:pl|pst)$/;
		1083	next unless /^$PATH_SEP/o;
		1084
		1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;
		1086	}
		1087
		1088	\@paths
1019	}	1089	}
1020		1090
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1092
1023	Sends an ext reply to the player.	1093	Sends an ext reply to the player.
1024		1094
1025	=cut	1095	=cut
1026		1096
1027	sub cf::player::ext_reply($$$%) {	1097	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1098	my ($self, $id, %msg) = @_;
1029		1099
1030	$msg{msgid} = $id;	1100	$msg{msgid} = $id;
1031		1101
1032	$self->send ("ext " . to_json \%msg);	1102	$self->send ("ext " . cf::to_json \%msg);
1033	}	1103	}
		1104
		1105	package cf;
1034		1106
1035	=back	1107	=back
1036		1108
1037		1109
1038	=head3 cf::map	1110	=head3 cf::map
…		…
1044	package cf::map;	1116	package cf::map;
1045		1117
1046	use Fcntl;	1118	use Fcntl;
1047	use Coro::AIO;	1119	use Coro::AIO;
1048		1120
		1121	use overload
		1122	'""' => \&as_string,
		1123	fallback => 1;
		1124
1049	our $MAX_RESET = 7200;	1125	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1126	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1127
1054	sub generate_random_map {	1128	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1129	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1130	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1131	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1132	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1133	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1134	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1135	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1136	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1137	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1138	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1139	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1140	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1141	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1142	(cf::region::find $rmp->{region}), $rmp->{custom}
		1143	)
		1144	}
		1145
		1146	=item cf::map->register ($regex, $prio)
		1147
		1148	Register a handler for the map path matching the given regex at the
		1149	givne priority (higher is better, built-in handlers have priority 0, the
		1150	default).
		1151
		1152	=cut
		1153
		1154	sub register {
		1155	my (undef, $regex, $prio) = @_;
		1156	my $pkg = caller;
		1157
		1158	no strict;
		1159	push @{"$pkg\::ISA"}, __PACKAGE__;
		1160
		1161	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1162	}
		1163
		1164	# also paths starting with '/'
		1165	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1166
		1167	sub thawer_merge {
		1168	my ($self, $merge) = @_;
		1169
		1170	# we have to keep some variables in memory intact
		1171	local $self->{path};
		1172	local $self->{load_path};
		1173	local $self->{deny_save};
		1174	local $self->{deny_reset};
		1175
		1176	$self->SUPER::thawer_merge ($merge);
		1177	}
		1178
		1179	sub normalise {
		1180	my ($path, $base) = @_;
		1181
		1182	$path = "$path"; # make sure its a string
		1183
		1184	$path =~ s/\.map$//;
		1185
		1186	# map plan:
		1187	#
		1188	# /! non-realised random map exit (special hack!)
		1189	# {... are special paths that are not being touched
		1190	# ?xxx/... are special absolute paths
		1191	# ?random/... random maps
		1192	# /... normal maps
		1193	# ~user/... per-player map of a specific user
		1194
		1195	$path =~ s/$PATH_SEP/\//go;
		1196
		1197	# treat it as relative path if it starts with
		1198	# something that looks reasonable
		1199	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1200	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1201
		1202	$base =~ s{[^/]+/?$}{};
		1203	$path = "$base/$path";
		1204	}
		1205
		1206	for ($path) {
		1207	redo if s{//}{/};
		1208	redo if s{/\.?/}{/};
		1209	redo if s{/[^/]+/\.\./}{/};
		1210	}
		1211
		1212	$path
		1213	}
		1214
		1215	sub new_from_path {
		1216	my (undef, $path, $base) = @_;
		1217
		1218	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1219
		1220	$path = normalise $path, $base;
		1221
		1222	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1223	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1224	my $self = bless cf::map::new, $pkg;
		1225	$self->{path} = $path; $self->path ($path);
		1226	$self->init; # pass $1 etc.
		1227	return $self;
		1228	}
		1229	}
		1230
		1231	Carp::carp "unable to resolve path '$path' (base '$base').";
		1232	()
		1233	}
		1234
		1235	sub init {
		1236	my ($self) = @_;
		1237
		1238	$self
		1239	}
		1240
		1241	sub as_string {
		1242	my ($self) = @_;
		1243
		1244	"$self->{path}"
		1245	}
		1246
		1247	# the displayed name, this is a one way mapping
		1248	sub visible_name {
		1249	&as_string
		1250	}
		1251
		1252	# the original (read-only) location
		1253	sub load_path {
		1254	my ($self) = @_;
		1255
		1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1257	}
		1258
		1259	# the temporary/swap location
		1260	sub save_path {
		1261	my ($self) = @_;
		1262
		1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1265	}
		1266
		1267	# the unique path, undef == no special unique path
		1268	sub uniq_path {
		1269	my ($self) = @_;
		1270
		1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1273	}
1072		1274
1073	# and all this just because we cannot iterate over	1275	# and all this just because we cannot iterate over
1074	# all maps in C++...	1276	# all maps in C++...
1075	sub change_all_map_light {	1277	sub change_all_map_light {
1076	my ($change) = @_;	1278	my ($change) = @_;
1077		1279
1078	$_->change_map_light ($change) for values %cf::MAP;	1280	$_->change_map_light ($change)
		1281	for grep $_->outdoor, values %cf::MAP;
1079	}	1282	}
1080		1283
		1284	sub unlink_save {
		1285	my ($self) = @_;
		1286
		1287	utf8::encode (my $save = $self->save_path);
		1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1289	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1290	}
		1291
1081	sub try_load_header($) {	1292	sub load_header_from($) {
1082	my ($path) = @_;	1293	my ($self, $path) = @_;
1083		1294
1084	utf8::encode $path;	1295	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1296	aio_open $path, O_RDONLY, 0
1086	or return;	1297	or return;
1087		1298
1088	my $map = cf::map::new	1299	$self->_load_header ($path)
1089	or return;	1300	or return;
1090		1301
1091	$map->load_header ($path)	1302	$self->{load_path} = $path;
		1303
		1304	1
		1305	}
		1306
		1307	sub load_header_orig {
		1308	my ($self) = @_;
		1309
		1310	$self->load_header_from ($self->load_path)
		1311	}
		1312
		1313	sub load_header_temp {
		1314	my ($self) = @_;
		1315
		1316	$self->load_header_from ($self->save_path)
		1317	}
		1318
		1319	sub prepare_temp {
		1320	my ($self) = @_;
		1321
		1322	$self->last_access ((delete $self->{last_access})
		1323	|| $cf::RUNTIME); #d#
		1324	# safety
		1325	$self->{instantiate_time} = $cf::RUNTIME
		1326	if $self->{instantiate_time} > $cf::RUNTIME;
		1327	}
		1328
		1329	sub prepare_orig {
		1330	my ($self) = @_;
		1331
		1332	$self->{load_original} = 1;
		1333	$self->{instantiate_time} = $cf::RUNTIME;
		1334	$self->last_access ($cf::RUNTIME);
		1335	$self->instantiate;
		1336	}
		1337
		1338	sub load_header {
		1339	my ($self) = @_;
		1340
		1341	if ($self->load_header_temp) {
		1342	$self->prepare_temp;
		1343	} else {
		1344	$self->load_header_orig
1092	or return;	1345	or return;
		1346	$self->prepare_orig;
		1347	}
1093		1348
1094	$map->{load_path} = $path;	1349	1
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1350	}
1099		1351
		1352	sub find;
1100	sub find_map {	1353	sub find {
1101	my ($path, $origin) = @_;	1354	my ($path, $origin) = @_;
1102		1355
1103	#warn "find_map<$path,$origin>\n";#d#	1356	$path = normalise $path, $origin && $origin->path;
1104		1357
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1358	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1359
1108	$cf::MAP{$key} || do {	1360	$cf::MAP{$path} || do {
1109	# do it the slow way	1361	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1362	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;	1363	or return;
1124		1364
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);	1365	$map->{last_save} = $cf::RUNTIME;
1135		1366
1136	$map->reset if $map->should_reset;	1367	$map->load_header
		1368	or return;
1137		1369
		1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1371	# doing this can freeze the server in a sync job, obviously
		1372	#$cf::WAIT_FOR_TICK->wait;
		1373	$map->reset;
		1374	undef $guard;
		1375	return find $path;
		1376	}
		1377
1138	$cf::MAP{$key} = $map	1378	$cf::MAP{$path} = $map
1139	}	1379	}
1140	}	1380	}
		1381
		1382	sub pre_load { }
		1383	sub post_load { }
1141		1384
1142	sub load {	1385	sub load {
1143	my ($self) = @_;	1386	my ($self) = @_;
1144		1387
		1388	local $self->{deny_reset} = 1; # loading can take a long time
		1389
		1390	my $path = $self->{path};
		1391	my $guard = cf::lock_acquire "map_load:$path";
		1392
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1393	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1394
1147	$self->in_memory (cf::MAP_LOADING);	1395	$self->in_memory (cf::MAP_LOADING);
1148		1396
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1397	$self->alloc;
		1398
		1399	$self->pre_load;
		1400
1152	$self->load_objects ($self->{load_path}, 1)	1401	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1402	or return;
1154		1403
		1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1405	if delete $self->{load_original};
		1406
1155	if (my $uniq = $path->uniq_path) {	1407	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1408	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1409	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1410	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1411	$self->_load_objects ($uniq, 0);
1160	}	1412	}
1161	}	1413	}
		1414
		1415	Coro::cede;
1162		1416
1163	# now do the right thing for maps	1417	# now do the right thing for maps
1164	$self->link_multipart_objects;	1418	$self->link_multipart_objects;
1165		1419
1166	if ($self->{path}->is_style_map) {	1420	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1421	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1422	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1423	$self->update_buttons;
		1424	Coro::cede;
1173	$self->set_darkness_map;	1425	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1426	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1427	unless $self->difficulty;
		1428	Coro::cede;
1176	$self->activate;	1429	$self->activate;
1177	}	1430	}
1178		1431
		1432	$self->post_load;
		1433
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1434	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1435	}
1181		1436
1182	sub load_map_sync {	1437	sub customise_for {
		1438	my ($self, $ob) = @_;
		1439
		1440	return find "~" . $ob->name . "/" . $self->{path}
		1441	if $self->per_player;
		1442
		1443	$self
		1444	}
		1445
		1446	# find and load all maps in the 3x3 area around a map
		1447	sub load_diag {
		1448	my ($map) = @_;
		1449
		1450	my @diag; # diagonal neighbours
		1451
		1452	for (0 .. 3) {
		1453	my $neigh = $map->tile_path ($_)
		1454	or next;
		1455	$neigh = find $neigh, $map
		1456	or next;
		1457	$neigh->load;
		1458
		1459	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1460	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1461	}
		1462
		1463	for (@diag) {
		1464	my $neigh = find @$_
		1465	or next;
		1466	$neigh->load;
		1467	}
		1468	}
		1469
		1470	sub find_sync {
1183	my ($path, $origin) = @_;	1471	my ($path, $origin) = @_;
1184		1472
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1473	cf::sync_job { find $path, $origin }
		1474	}
1186		1475
1187	cf::sync_job {	1476	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1477	my ($map) = @_;
1189	or return;	1478
		1479	cf::sync_job { $map->load };
		1480	}
		1481
		1482	our %MAP_PREFETCH;
		1483	our $MAP_PREFETCHER = undef;
		1484
		1485	sub find_async {
		1486	my ($path, $origin) = @_;
		1487
		1488	$path = normalise $path, $origin && $origin->{path};
		1489
		1490	if (my $map = $cf::MAP{$path}) {
		1491	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1492	}
		1493
		1494	undef $MAP_PREFETCH{$path};
		1495	$MAP_PREFETCHER ||= cf::async {
		1496	while (%MAP_PREFETCH) {
		1497	for my $path (keys %MAP_PREFETCH) {
		1498	my $map = find $path
		1499	or next;
1190	$map->load;	1500	$map->load;
1191	$map	1501
		1502	delete $MAP_PREFETCH{$path};
		1503	}
		1504	}
		1505	undef $MAP_PREFETCHER;
1192	}	1506	};
		1507	$MAP_PREFETCHER->prio (6);
		1508
		1509	()
1193	}	1510	}
1194		1511
1195	sub save {	1512	sub save {
1196	my ($self) = @_;	1513	my ($self) = @_;
1197		1514
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1515	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1516
1201	$self->{last_save} = $cf::RUNTIME;	1517	$self->{last_save} = $cf::RUNTIME;
1202		1518
1203	return unless $self->dirty;	1519	return unless $self->dirty;
1204		1520
		1521	my $save = $self->save_path; utf8::encode $save;
		1522	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1523
1205	$self->{load_path} = $save;	1524	$self->{load_path} = $save;
1206		1525
1207	return if $self->{deny_save};	1526	return if $self->{deny_save};
1208		1527
1209	warn "saving map ", $self->path;	1528	local $self->{last_access} = $self->last_access;#d#
		1529
		1530	cf::async {
		1531	$_->contr->save for $self->players;
		1532	};
1210		1533
1211	if ($uniq) {	1534	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1536	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1537	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1538	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1539	}
1217	}	1540	}
1218		1541
1219	sub swap_out {	1542	sub swap_out {
1220	my ($self) = @_;	1543	my ($self) = @_;
		1544
		1545	# save first because save cedes
		1546	$self->save;
		1547
		1548	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1549
1222	return if $self->players;	1550	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1552	return if $self->{deny_save};
1225		1553
1226	$self->save;
1227	$self->clear;	1554	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1555	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1556	}
1230		1557
		1558	sub reset_at {
		1559	my ($self) = @_;
		1560
		1561	# TODO: safety, remove and allow resettable per-player maps
		1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1563	return 1e99 if $self->{deny_reset};
		1564
		1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1567
		1568	$time + $to
		1569	}
		1570
1231	sub should_reset {	1571	sub should_reset {
1232	my ($map) = @_;	1572	my ($self) = @_;
1233		1573
1234	# TODO: safety, remove and allow resettable per-player maps	1574	$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) < $cf::RUNTIME
1242	}	1575	}
1243		1576
1244	sub reset {	1577	sub reset {
1245	my ($self) = @_;	1578	my ($self) = @_;
1246		1579
		1580	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1581
1247	return if $self->players;	1582	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1583	return if $self->isa ("ext::map_per_player");#d#
1249		1584
1250	warn "resetting map ", $self->path;#d#	1585	warn "resetting map ", $self->path;#d#
1251		1586
1252	utf8::encode (my $save = $self->{path}->save_path);	1587	delete $cf::MAP{$self->path};
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1588
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1589	$self->in_memory (cf::MAP_SWAPPED);
		1590	$self->clear;
1255		1591
1256	$_->clear_links_to ($self) for values %cf::MAP;	1592	$_->clear_links_to ($self) for values %cf::MAP;
1257		1593
		1594	$self->unlink_save;
1258	$self->clear;	1595	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1596	}
1262		1597
1263	sub customise_for {	1598	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1599
1266	if ($map->per_player) {	1600	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1601	my ($self) = @_;
1268	}
1269		1602
1270	$map	1603	delete $cf::MAP{$self->path};
1271	}
1272		1604
1273	sub emergency_save {	1605	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1606
1276	warn "enter emergency map save\n";	1607	bless $self, "cf::map";
		1608	delete $self->{deny_reset};
		1609	$self->{deny_save} = 1;
		1610	$self->reset_timeout (1);
		1611	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1612
1278	cf::sync_job {	1613	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1614
1280	$_->save for values %cf::MAP;	1615	$self->reset; # polite request, might not happen
		1616	}
		1617
		1618	=item cf::map::unique_maps
		1619
		1620	Returns an arrayref of paths of all shared maps that have
		1621	instantiated unique items. May block.
		1622
		1623	=cut
		1624
		1625	sub unique_maps() {
		1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1627	or return;
		1628
		1629	my @paths;
		1630
		1631	for (@$files) {
		1632	utf8::decode $_;
		1633	next if /\.pst$/;
		1634	next unless /^$PATH_SEP/o;
		1635
		1636	push @paths, cf::map::normalise $_;
1281	};	1637	}
1282		1638
1283	warn "end emergency map save\n";	1639	\@paths
1284	}	1640	}
1285		1641
1286	package cf;	1642	package cf;
1287		1643
1288	=back	1644	=back
1289		1645
		1646	=head3 cf::object
		1647
		1648	=cut
		1649
		1650	package cf::object;
		1651
		1652	=over 4
		1653
		1654	=item $ob->inv_recursive
		1655
		1656	Returns the inventory of the object _and_ their inventories, recursively.
		1657
		1658	=cut
		1659
		1660	sub inv_recursive_;
		1661	sub inv_recursive_ {
		1662	map { $_, inv_recursive_ $_->inv } @_
		1663	}
		1664
		1665	sub inv_recursive {
		1666	inv_recursive_ inv $_[0]
		1667	}
		1668
		1669	package cf;
		1670
		1671	=back
1290		1672
1291	=head3 cf::object::player	1673	=head3 cf::object::player
1292		1674
1293	=over 4	1675	=over 4
1294		1676
…		…
1330	(ref $cf::CFG{"may_$access"}	1712	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1713	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1714	: $cf::CFG{"may_$access"})
1333	}	1715	}
1334		1716
		1717	=item $player_object->enter_link
		1718
		1719	Freezes the player and moves him/her to a special map (C<{link}>).
		1720
		1721	The player should be reasonably safe there for short amounts of time. You
		1722	I<MUST> call C<leave_link> as soon as possible, though.
		1723
		1724	Will never block.
		1725
		1726	=item $player_object->leave_link ($map, $x, $y)
		1727
		1728	Moves the player out of the special C<{link}> map onto the specified
		1729	map. If the map is not valid (or omitted), the player will be moved back
		1730	to the location he/she was before the call to C<enter_link>, or, if that
		1731	fails, to the emergency map position.
		1732
		1733	Might block.
		1734
		1735	=cut
		1736
		1737	sub link_map {
		1738	unless ($LINK_MAP) {
		1739	$LINK_MAP = cf::map::find "{link}"
		1740	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1741	$LINK_MAP->load;
		1742	}
		1743
		1744	$LINK_MAP
		1745	}
		1746
1335	sub cf::object::player::enter_link {	1747	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1748	my ($self) = @_;
1337		1749
1338	return if $self->map == $LINK_MAP;	1750	$self->deactivate_recursive;
1339		1751
		1752	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1753
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1755	if $self->map;
1342		1756
1343	$self->enter_map ($LINK_MAP, 20, 20);	1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1758	}
1346		1759
1347	sub cf::object::player::leave_link {	1760	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1761	my ($self, $map, $x, $y) = @_;
1349		1762
1350	my $link_pos = delete $self->{_link_pos};	1763	my $link_pos = delete $self->{_link_pos};
1351		1764
1352	unless ($map) {	1765	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1766	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1767	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1768	$map = cf::map::find $map;
1358		1769
1359	unless ($map) {	1770	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1771	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1772	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1773	or die "FATAL: cannot load emergency map\n";
1363	}	1774	}
1364	}	1775	}
1365		1776
1366	($x, $y) = (-1, -1)	1777	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1780	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1781	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1782	if $x <=0 && $y <= 0;
1372		1783
1373	$map->load;	1784	$map->load;
		1785	$map->load_diag;
1374		1786
		1787	return unless $self->contr->active;
1375	$self->activate_recursive;	1788	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	1789	$self->enter_map ($map, $x, $y);
1377	}	1790	}
1378		1791
		1792	cf::player->attach (
		1793	on_logout => sub {
		1794	my ($pl) = @_;
		1795
		1796	# abort map switching before logout
		1797	if ($pl->ob->{_link_pos}) {
		1798	cf::sync_job {
		1799	$pl->ob->leave_link
		1800	};
		1801	}
		1802	},
		1803	on_login => sub {
		1804	my ($pl) = @_;
		1805
		1806	# try to abort aborted map switching on player login :)
		1807	# should happen only on crashes
		1808	if ($pl->ob->{_link_pos}) {
		1809	$pl->ob->enter_link;
		1810	(async {
		1811	# we need this sleep as the login has a concurrent enter_exit running
		1812	# and this sleep increases chances of the player not ending up in scorn
		1813	$pl->ob->reply (undef,
		1814	"There was an internal problem at your last logout, "
		1815	. "the server will try to bring you to your intended destination in a second.",
		1816	cf::NDI_RED);
		1817	Coro::Timer::sleep 1;
		1818	$pl->ob->leave_link;
		1819	})->prio (2);
		1820	}
		1821	},
		1822	);
		1823
1379	=item $player_object->goto_map ($map, $x, $y)	1824	=item $player_object->goto ($path, $x, $y)
1380		1825
1381	=cut	1826	=cut
1382		1827
1383	sub cf::object::player::goto_map {	1828	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1829	my ($self, $path, $x, $y) = @_;
1385		1830
1386	$self->enter_link;	1831	$self->enter_link;
1387		1832
1388	(Coro::async {	1833	(async {
1389	$path = new cf::path $path;	1834	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1835	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1836	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1837	$map
		1838	} or
		1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1840
1397	$self->leave_link ($map, $x, $y);	1841	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1842	})->prio (1);
1399	}	1843	}
1400		1844
…		…
1404		1848
1405	sub parse_random_map_params {	1849	sub parse_random_map_params {
1406	my ($spec) = @_;	1850	my ($spec) = @_;
1407		1851
1408	my $rmp = { # defaults	1852	my $rmp = { # defaults
1409	xsize => 10,	1853	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1854	ysize => (cf::rndm 15, 40),
		1855	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1856	#layout => string,
1411	};	1857	};
1412		1858
1413	for (split /\n/, $spec) {	1859	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1860	my ($k, $v) = split /\s+/, $_, 2;
1415		1861
…		…
1419	$rmp	1865	$rmp
1420	}	1866	}
1421		1867
1422	sub prepare_random_map {	1868	sub prepare_random_map {
1423	my ($exit) = @_;	1869	my ($exit) = @_;
		1870
		1871	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1872
1425	# all this does is basically replace the /! path by	1873	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1874	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1875	# that depends on the exit object
1428		1876
1429	my $rmp = parse_random_map_params $exit->msg;	1877	my $rmp = parse_random_map_params $exit->msg;
1430		1878
1431	if ($exit->map) {	1879	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	1880	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	1881	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	1882	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	1883	$rmp->{origin_y} = $exit->y;
1436	}	1884	}
1437		1885
1438	$rmp->{random_seed} ||= $exit->random_seed;	1886	$rmp->{random_seed} ||= $exit->random_seed;
1439		1887
1440	my $data = cf::to_json $rmp;	1888	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1889	my $md5 = Digest::MD5::md5_hex $data;
		1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1891
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	1893	aio_write $fh, 0, (length $data), $data, 0;
		1894	undef $fh;
		1895	aio_rename "$meta~", $meta;
1445		1896
1446	$exit->slaying ("?random/$md5");	1897	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1898	$exit->msg (undef);
1448	}	1899	}
1449	}	1900	}
…		…
1451	sub cf::object::player::enter_exit {	1902	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	1903	my ($self, $exit) = @_;
1453		1904
1454	return unless $self->type == cf::PLAYER;	1905	return unless $self->type == cf::PLAYER;
1455		1906
		1907	if ($exit->slaying eq "/!") {
		1908	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1909	cf::sync_job { prepare_random_map $exit };
		1910	}
		1911
		1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1913	my $hp = $exit->stats->hp;
		1914	my $sp = $exit->stats->sp;
		1915
1456	$self->enter_link;	1916	$self->enter_link;
1457		1917
1458	(Coro::async {	1918	(async {
		1919	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1920	unless (eval {
1460		1921	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		1922
1467	1;	1923	1;
1468	}) {	1924	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1925	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	1926	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	1927	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1928	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1929
1474	warn "ERROR in enter_exit: $@";	1930	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1931	$self->leave_link;
1476	}	1932	}
…		…
1527	on_reply => sub {	1983	on_reply => sub {
1528	my ($ns, $msg) = @_;	1984	my ($ns, $msg) = @_;
1529		1985
1530	# this weird shuffling is so that direct followup queries	1986	# this weird shuffling is so that direct followup queries
1531	# get handled first	1987	# get handled first
1532	my $queue = delete $ns->{query_queue};	1988	my $queue = delete $ns->{query_queue}
		1989	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		1990
1534	(shift @$queue)->[1]->($msg);	1991	(shift @$queue)->[1]->($msg);
1535		1992
1536	push @{ $ns->{query_queue} }, @$queue;	1993	push @{ $ns->{query_queue} }, @$queue;
1537		1994
…		…
1543	}	2000	}
1544	}	2001	}
1545	},	2002	},
1546	);	2003	);
1547		2004
1548	=item $client->coro (\&cb)	2005	=item $client->async (\&cb)
1549		2006
1550	Create a new coroutine, running the specified callback. The coroutine will	2007	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2008	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2009	or loss of connection).
1553		2010
1554	=cut	2011	=cut
1555		2012
1556	sub cf::client::coro {	2013	sub cf::client::async {
1557	my ($self, $cb) = @_;	2014	my ($self, $cb) = @_;
1558		2015
1559	my $coro; $coro = async {	2016	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2017
1566	$coro->on_destroy (sub {	2018	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2019	delete $self->{_coro}{$coro+0};
1568	});	2020	});
1569		2021
…		…
1741		2193
1742	{	2194	{
1743	my $path = cf::localdir . "/database.pst";	2195	my $path = cf::localdir . "/database.pst";
1744		2196
1745	sub db_load() {	2197	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };	2198	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	2199	}
1749		2200
1750	my $pid;	2201	my $pid;
1751		2202
1752	sub db_save() {	2203	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;	2204	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {	2205	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;	2206	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";	2207	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;	2208	rename "$path~", $path;
…		…
1765	sub db_sync() {	2215	sub db_sync() {
1766	db_save if $dirty;	2216	db_save if $dirty;
1767	undef $dirty;	2217	undef $dirty;
1768	}	2218	}
1769		2219
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2220	my $idle = Event->idle (
1771	db_sync;	2221	reentrant => 0,
		2222	min => 10,
		2223	max => 20,
		2224	repeat => 0,
		2225	data => WF_AUTOCANCEL,
		2226	cb => \&db_sync,
1772	});	2227	);
1773		2228
1774	sub db_dirty() {	2229	sub db_dirty() {
1775	$dirty = 1;	2230	$dirty = 1;
1776	$idle->start;	2231	$idle->start;
1777	}	2232	}
…		…
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2261	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2262	or return;
1808		2263
1809	local $/;	2264	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2265	*CFG = YAML::Syck::Load <$fh>;
		2266
		2267	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2268
		2269	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2270	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2271
		2272	if (exists $CFG{mlockall}) {
		2273	eval {
		2274	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2275	and die "WARNING: m(un)lockall failed: $!\n";
		2276	};
		2277	warn $@ if $@;
		2278	}
1811	}	2279	}
1812		2280
1813	sub main {	2281	sub main {
1814	# we must not ever block the main coroutine	2282	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2283	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2284	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2285	(async {
1818	Event::one_event;	2286	Event::one_event;
1819	})->();	2287	})->prio (Coro::PRIO_MAX);
1820	};	2288	};
1821		2289
1822	cfg_load;	2290	cfg_load;
1823	db_load;	2291	db_load;
1824	load_extensions;	2292	load_extensions;
		2293
		2294	$TICK_WATCHER->start;
1825	Event::loop;	2295	Event::loop;
1826	}	2296	}
1827		2297
1828	#############################################################################	2298	#############################################################################
1829	# initialisation	2299	# initialisation and cleanup
1830		2300
		2301	# install some emergency cleanup handlers
		2302	BEGIN {
		2303	for my $signal (qw(INT HUP TERM)) {
		2304	Event->signal (
		2305	reentrant => 0,
		2306	data => WF_AUTOCANCEL,
		2307	signal => $signal,
		2308	prio => 0,
		2309	cb => sub {
		2310	cf::cleanup "SIG$signal";
		2311	},
		2312	);
		2313	}
		2314	}
		2315
		2316	sub emergency_save() {
		2317	my $freeze_guard = cf::freeze_mainloop;
		2318
		2319	warn "enter emergency perl save\n";
		2320
		2321	cf::sync_job {
		2322	# use a peculiar iteration method to avoid tripping on perl
		2323	# refcount bugs in for. also avoids problems with players
		2324	# and maps saved/destroyed asynchronously.
		2325	warn "begin emergency player save\n";
		2326	for my $login (keys %cf::PLAYER) {
		2327	my $pl = $cf::PLAYER{$login} or next;
		2328	$pl->valid or next;
		2329	$pl->save;
		2330	}
		2331	warn "end emergency player save\n";
		2332
		2333	warn "begin emergency map save\n";
		2334	for my $path (keys %cf::MAP) {
		2335	my $map = $cf::MAP{$path} or next;
		2336	$map->valid or next;
		2337	$map->save;
		2338	}
		2339	warn "end emergency map save\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
		2344
1831	sub perl_reload() {	2345	sub reload() {
1832	# can/must only be called in main	2346	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2347	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2348	warn "can only reload from main coroutine";
1835	return;	2349	return;
1836	}	2350	}
1837		2351
1838	warn "reloading...";	2352	warn "reloading...";
1839		2353
1840	local $FREEZE = 1;	2354	warn "cancelling server ticker";
		2355	$TICK_WATCHER->cancel;
		2356
1841	cf::emergency_save;	2357	cf::emergency_save;
1842		2358
1843	eval {	2359	eval {
1844	# if anything goes wrong in here, we should simply crash as we already saved	2360	# if anything goes wrong in here, we should simply crash as we already saved
1845		2361
1846	# cancel all watchers	2362	warn "syncing database to disk";
		2363	cf::db_sync;
		2364
		2365	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2366	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2367	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2368	}
1850		2369
		2370	warn "flushing outstanding aio requests";
		2371	for (;;) {
		2372	IO::AIO::flush;
		2373	Coro::cede;
		2374	last unless IO::AIO::nreqs;
		2375	warn "iterate...";
		2376	}
		2377
1851	# cancel all extension coros	2378	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2379	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2380	%EXT_CORO = ();
1854		2381
1855	# unload all extensions	2382	warn "removing commands";
1856	for (@exts) {	2383	%COMMAND = ();
		2384
		2385	warn "removing ext commands";
		2386	%EXTCMD = ();
		2387
		2388	warn "unloading/nuking all extensions";
		2389	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2390	warn "... unloading $pkg";
1858	unload_extension $_;	2391
		2392	if (my $cb = $pkg->can ("unload")) {
		2393	eval {
		2394	$cb->($pkg);
		2395	1
		2396	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2397	}
1860		2398
		2399	warn "... nuking $pkg";
		2400	Symbol::delete_package $pkg;
		2401	}
		2402
1861	# unload all modules loaded from $LIBDIR	2403	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2404	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2405	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2406
1865	warn "removing <$k>";	2407	warn "... unloading $k";
1866	delete $INC{$k};	2408	delete $INC{$k};
1867		2409
1868	$k =~ s/\.pm$//;	2410	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2411	$k =~ s/\//::/g;
1870		2412
…		…
1873	}	2415	}
1874		2416
1875	Symbol::delete_package $k;	2417	Symbol::delete_package $k;
1876	}	2418	}
1877		2419
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2420	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2421	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2423
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2424	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2425	delete $INC{"cf.pm"};
1891		2426
1892	# don't, removes xs symbols, too,	2427	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2428	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2429	#Symbol::delete_package __PACKAGE__;
1895		2430
1896	# reload cf.pm	2431	warn "unload completed, starting to reload now";
		2432
1897	warn "reloading cf.pm";	2433	warn "reloading cf.pm";
1898	require cf;	2434	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2436
1901	# load config and database again	2437	warn "loading config and database again";
1902	cf::cfg_load;	2438	cf::cfg_load;
1903	cf::db_load;	2439	cf::db_load;
1904		2440
1905	# load extensions
1906	warn "load extensions";	2441	warn "loading extensions";
1907	cf::load_extensions;	2442	cf::load_extensions;
1908		2443
1909	# reattach attachments to objects	2444	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2445	_global_reattach;
		2446	warn "reattaching attachments to maps";
		2447	reattach $_ for values %MAP;
		2448
		2449	warn "restarting server ticker";
		2450
		2451	$TICK_WATCHER->start;
1912	};	2452	};
1913		2453
1914	if ($@) {	2454	if ($@) {
1915	warn $@;	2455	warn $@;
1916	warn "error while reloading, exiting.";	2456	warn "error while reloading, exiting.";
1917	exit 1;	2457	exit 1;
1918	}	2458	}
1919		2459
1920	warn "reloaded successfully";	2460	warn "reloaded";
1921	};	2461	};
1922		2462
1923	#############################################################################	2463	our $RELOAD_WATCHER; # used only during reload
1924		2464
1925	unless ($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} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2465	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2466	my ($who, $arg) = @_;
1970		2467
1971	if ($who->flag (FLAG_WIZ)) {	2468	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2469	$who->message ("reloading server.");
		2470
		2471	# doing reload synchronously and two reloads happen back-to-back,
		2472	# coro crashes during coro_state_free->destroy here.
		2473
		2474	$RELOAD_WATCHER ||= Event->timer (
		2475	reentrant => 0,
		2476	after => 0,
		2477	data => WF_AUTOCANCEL,
		2478	cb => sub {
		2479	reload;
		2480	undef $RELOAD_WATCHER;
		2481	},
		2482	);
1975	}	2483	}
1976	};	2484	};
1977		2485
1978	unshift @INC, $LIBDIR;	2486	unshift @INC, $LIBDIR;
		2487
		2488	my $bug_warning = 0;
1979		2489
1980	$TICK_WATCHER = Event->timer (	2490	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2491	reentrant => 0,
		2492	parked => 1,
1982	prio => 0,	2493	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2494	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2495	data => WF_AUTOCANCEL,
1985	cb => sub {	2496	cb => sub {
1986	unless ($FREEZE) {	2497	if ($Coro::current != $Coro::main) {
		2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2499	unless ++$bug_warning > 10;
		2500	return;
		2501	}
		2502
		2503	$NOW = Event::time;
		2504
1987	cf::server_tick; # one server iteration	2505	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2506	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2507	$NEXT_TICK += $TICK;
		2508
		2509	$WAIT_FOR_TICK->broadcast;
		2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2511
		2512	Event::sweep;
		2513	Coro::cede_notself;
		2514
		2515	# my $AFTER = Event::time;
		2516	# warn $AFTER - $NOW;#d#
1992		2517
1993	# if we are delayed by four ticks or more, skip them all	2518	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2520
1996	$TICK_WATCHER->at ($NEXT_TICK);	2521	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2522	$TICK_WATCHER->start;
1998	},	2523	},
1999	);	2524	);
2000		2525
2001	IO::AIO::max_poll_time $TICK * 0.2;	2526	IO::AIO::max_poll_time $TICK * 0.1;
2002		2527
2003	Event->io (	2528	undef $Coro::AIO::WATCHER;
		2529	$AIO_POLL_WATCHER = Event->io (
		2530	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2531	fd => IO::AIO::poll_fileno,
2005	poll => 'r',	2532	poll => 'r',
2006	prio => 5,	2533	prio => 6,
2007	data => WF_AUTOCANCEL,	2534	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,	2535	cb => \&IO::AIO::poll_cb,
2009	);	2536	);
2010		2537
2011	Event->timer (	2538	$WRITE_RUNTIME_WATCHER = Event->timer (
		2539	reentrant => 0,
2012	data => WF_AUTOCANCEL,	2540	data => WF_AUTOCANCEL,
2013	after => 0,	2541	after => 1,
2014	interval => 10,	2542	interval => 10,
2015	cb => sub {	2543	prio => 6, # keep it lowest so it acts like a watchdog
2016	(Coro::unblock_sub {	2544	cb => Coro::unblock_sub {
2017	write_runtime	2545	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";	2546	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},	2547	},
2021	);	2548	);
2022		2549
		2550	END { cf::emergency_save }
		2551
2023	1	2552	1
2024		2553

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