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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.199 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
…		…
203	# this is the main coro, too bad, we have to block	302	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	303	# till the operation succeeds, freezing the server :/
205		304
206	# TODO: use suspend/resume instead	305	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	306	# (but this is cancel-safe)
208	local $FREEZE = 1;	307	my $freeze_guard = freeze_mainloop;
209		308
210	my $busy = 1;	309	my $busy = 1;
211	my @res;	310	my @res;
212		311
213	(Coro::async {	312	(async {
214	@res = eval { $job->() };	313	@res = eval { $job->() };
215	warn $@ if $@;	314	warn $@ if $@;
216	undef $busy;	315	undef $busy;
217	})->prio (Coro::PRIO_MAX);	316	})->prio (Coro::PRIO_MAX);
218		317
219	while ($busy) {	318	while ($busy) {
220	Coro::cede_notself;	319	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	320	}
223		321
224	wantarray ? @res : $res[0]	322	wantarray ? @res : $res[0]
225	} else {	323	} else {
226	# we are in another coroutine, how wonderful, everything just works	324	# we are in another coroutine, how wonderful, everything just works
227		325
228	$job->()	326	$job->()
229	}	327	}
230	}	328	}
231		329
232	=item $coro = cf::coro { BLOCK }	330	=item $coro = cf::async_ext { BLOCK }
233		331
234	Creates and returns a new coro. This coro is automcatially being canceled	332	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	333	extension calling this is being unloaded.
236		334
237	=cut	335	=cut
238		336
239	sub coro(&) {	337	sub async_ext(&) {
240	my $cb = shift;	338	my $cb = shift;
241		339
242	my $coro; $coro = async {	340	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		341
249	$coro->on_destroy (sub {	342	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	343	delete $EXT_CORO{$coro+0};
251	});	344	});
252	$EXT_CORO{$coro+0} = $coro;	345	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	351	my $runtime = cf::localdir . "/runtime";
259		352
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	354	or return;
262		355
		356	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	357	# 10 is the runtime save interval, for a monotonic clock
		358	# 60 allows for the watchdog to kill the server.
		359
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	360	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	361	and return;
266		362
267	aio_fsync $fh	363	aio_fsync $fh
268	and return;	364	and return;
…		…
277	}	373	}
278		374
279	=back	375	=back
280		376
281	=cut	377	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		378
393	#############################################################################	379	#############################################################################
394		380
395	=head2 ATTACHABLE OBJECTS	381	=head2 ATTACHABLE OBJECTS
396		382
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	508	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	509	our @CB_MAP = ();
524		510
525	my %attachment;	511	my %attachment;
526		512
		513	sub cf::attachable::thawer_merge {
		514	# simply override everything except _meta
		515	local $_[0]{_meta};
		516	%{$_[0]} = %{$_[1]};
		517	}
		518
527	sub _attach_cb($$$$) {	519	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	520	my ($registry, $event, $prio, $cb) = @_;
529		521
530	use sort 'stable';	522	use sort 'stable';
531		523
…		…
702	# object support	694	# object support
703		695
704	sub reattach {	696	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	697	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	698	my ($obj) = @_;
		699
		700	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		701
708	my $registry = $obj->registry;	702	my $registry = $obj->registry;
709		703
710	@$registry = ();	704	@$registry = ();
711		705
…		…
804	or return;	798	or return;
805		799
806	unless (aio_stat "$filename.pst") {	800	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	801	(aio_load "$filename.pst", $av) >= 0
808	or return;	802	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	803	$av = eval { (Storable::thaw $av)->{objs} };
810	}	804	}
811		805
		806	warn sprintf "loading %s (%d)\n",
		807	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	808	return ($data, $av);
813	}	809	}
814		810
815	#############################################################################	811	#############################################################################
816	# command handling &c	812	# command handling &c
…		…
841	=cut	837	=cut
842		838
843	sub register_extcmd {	839	sub register_extcmd {
844	my ($name, $cb) = @_;	840	my ($name, $cb) = @_;
845		841
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	842	$EXTCMD{$name} = $cb;
850	}	843	}
851		844
852	cf::player->attach (	845	cf::player->attach (
853	on_command => sub {	846	on_command => sub {
854	my ($pl, $name, $params) = @_;	847	my ($pl, $name, $params) = @_;
…		…
867		860
868	my $msg = eval { from_json $buf };	861	my $msg = eval { from_json $buf };
869		862
870	if (ref $msg) {	863	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	865	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	866	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	867	}
875	}	868	}
876	} else {	869	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		872
880	cf::override;	873	cf::override;
881	},	874	},
882	);	875	);
883		876
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	877	sub load_extension {
891	my ($path) = @_;	878	my ($path) = @_;
892		879
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	881	my $base = $1;
895	my $pkg = $1;	882	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	883	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	884	$pkg = "ext::$pkg";
898		885
899	warn "loading '$path' into '$pkg'\n";	886	warn "... loading '$path' into '$pkg'\n";
900		887
901	open my $fh, "<:utf8", $path	888	open my $fh, "<:utf8", $path
902	or die "$path: $!";	889	or die "$path: $!";
903		890
904	my $source =	891	my $source =
905	"package $pkg; use strict; use utf8;\n"	892	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	893	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	894	. (do { local $/; <$fh> })
908	. "\n};\n1";	895	. "\n};\n1";
909		896
910	eval $source	897	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	898	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	899	: "extension disabled.\n";
913		900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	901	warn $@;
915	$ext_pkg{$base} = $pkg;	902	warn "mandatory extension failed to load, exiting.\n";
916		903	exit 1;
917	# no strict 'refs';	904	}
918	# @{"$pkg\::ISA"} = ext::;	905	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	906	}
933		907
934	# remove commands	908	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	909	}
959		910
960	sub load_extensions {	911	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	912	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	913	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	917	} or warn "$ext not loaded: $@";
967	}	918	}
968	}	919	}
969		920
970	#############################################################################	921	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		922
1008	=head2 CORE EXTENSIONS	923	=head2 CORE EXTENSIONS
1009		924
1010	Functions and methods that extend core crossfire objects.	925	Functions and methods that extend core crossfire objects.
1011		926
		927	=cut
		928
		929	package cf::player;
		930
		931	use Coro::AIO;
		932
1012	=head3 cf::player	933	=head3 cf::player
1013		934
1014	=over 4	935	=over 4
1015		936
1016	=item cf::player::exists $login	937	=item cf::player::find $login
1017		938
1018	Returns true when the given account exists.	939	Returns the given player object, loading it if necessary (might block).
1019		940
1020	=cut	941	=cut
1021		942
1022	sub cf::player::exists($) {	943	sub playerdir($) {
1023	cf::player::find $_[0]	944	cf::localdir
1024	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
1025	}	1089	}
1026		1090
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1092
1029	Sends an ext reply to the player.	1093	Sends an ext reply to the player.
1030		1094
1031	=cut	1095	=cut
1032		1096
1033	sub cf::player::ext_reply($$$%) {	1097	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1098	my ($self, $id, %msg) = @_;
1035		1099
1036	$msg{msgid} = $id;	1100	$msg{msgid} = $id;
1037		1101
1038	$self->send ("ext " . to_json \%msg);	1102	$self->send ("ext " . cf::to_json \%msg);
1039	}	1103	}
		1104
		1105	package cf;
1040		1106
1041	=back	1107	=back
1042		1108
1043		1109
1044	=head3 cf::map	1110	=head3 cf::map
…		…
1050	package cf::map;	1116	package cf::map;
1051		1117
1052	use Fcntl;	1118	use Fcntl;
1053	use Coro::AIO;	1119	use Coro::AIO;
1054		1120
		1121	use overload
		1122	'""' => \&as_string,
		1123	fallback => 1;
		1124
1055	our $MAX_RESET = 7200;	1125	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1126	our $DEFAULT_RESET = 3000;
1057		1127
1058	sub generate_random_map {	1128	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1129	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1130	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1131	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1132	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1133	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1134	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1135	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1136	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1137	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1138	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1139	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$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},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1141	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(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, $path
1075	}	1273	}
1076		1274
1077	# and all this just because we cannot iterate over	1275	# and all this just because we cannot iterate over
1078	# all maps in C++...	1276	# all maps in C++...
1079	sub change_all_map_light {	1277	sub change_all_map_light {
1080	my ($change) = @_;	1278	my ($change) = @_;
1081		1279
1082	$_->change_map_light ($change) for values %cf::MAP;	1280	$_->change_map_light ($change)
		1281	for grep $_->outdoor, values %cf::MAP;
1083	}	1282	}
1084		1283
		1284	sub unlink_save {
		1285	my ($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
1085	sub try_load_header($) {	1292	sub load_header_from($) {
1086	my ($path) = @_;	1293	my ($self, $path) = @_;
1087		1294
1088	utf8::encode $path;	1295	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1296	aio_open $path, O_RDONLY, 0
1090	or return;	1297	or return;
1091		1298
1092	my $map = cf::map::new	1299	$self->_load_header ($path)
1093	or return;	1300	or return;
1094		1301
1095	$map->load_header ($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
1096	or return;	1345	or return;
		1346	$self->prepare_orig;
		1347	}
1097		1348
1098	$map->{load_path} = $path;	1349	1
1099
1100	$map
1101	}	1350	}
1102		1351
		1352	sub find;
1103	sub find_map {	1353	sub find {
1104	my ($path, $origin) = @_;	1354	my ($path, $origin) = @_;
1105		1355
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1356	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1357
		1358	cf::lock_wait "map_find:$path";
		1359
1111	$cf::MAP{$key} || do {	1360	$cf::MAP{$path} || do {
1112	# do it the slow way	1361	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1362	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1363	or return;
1127		1364
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1365	$map->{last_save} = $cf::RUNTIME;
1139		1366
1140	if ($map->should_reset) {	1367	$map->load_header
		1368	or return;
		1369
		1370	if ($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;
1141	$map->reset;	1373	$map->reset;
1142	$map = find_map $path;	1374	undef $guard;
		1375	return find $path;
1143	}	1376	}
1144		1377
1145	$cf::MAP{$key} = $map	1378	$cf::MAP{$path} = $map
1146	}	1379	}
1147	}	1380	}
		1381
		1382	sub pre_load { }
		1383	sub post_load { }
1148		1384
1149	sub load {	1385	sub load {
1150	my ($self) = @_;	1386	my ($self) = @_;
1151		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
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1393	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1394
1154	$self->in_memory (cf::MAP_LOADING);	1395	$self->in_memory (cf::MAP_LOADING);
1155		1396
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1397	$self->alloc;
		1398
		1399	$self->pre_load;
		1400
1159	$self->load_objects ($self->{load_path}, 1)	1401	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1402	or return;
1161		1403
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1405	if delete $self->{load_original};
1164		1406
1165	if (my $uniq = $path->uniq_path) {	1407	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1408	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1409	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1410	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1411	$self->_load_objects ($uniq, 0);
1170	}	1412	}
1171	}	1413	}
		1414
		1415	Coro::cede;
1172		1416
1173	# now do the right thing for maps	1417	# now do the right thing for maps
1174	$self->link_multipart_objects;	1418	$self->link_multipart_objects;
1175		1419
1176	if ($self->{path}->is_style_map) {	1420	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1421	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1422	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1423	$self->update_buttons;
		1424	Coro::cede;
1183	$self->set_darkness_map;	1425	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1426	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1427	unless $self->difficulty;
		1428	Coro::cede;
1186	$self->activate;	1429	$self->activate;
1187	}	1430	}
1188		1431
		1432	$self->post_load;
		1433
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1434	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1435	}
1191		1436
1192	sub load_map_sync {	1437	sub customise_for {
		1438	my ($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	$neigh->load;
		1467	}
		1468	}
		1469
		1470	sub find_sync {
1193	my ($path, $origin) = @_;	1471	my ($path, $origin) = @_;
1194		1472
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1473	cf::sync_job { find $path, $origin }
		1474	}
1196		1475
1197	cf::sync_job {	1476	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1477	my ($map) = @_;
1199	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;
1200	$map->load;	1500	$map->load;
1201	$map	1501
		1502	delete $MAP_PREFETCH{$path};
		1503	}
		1504	}
		1505	undef $MAP_PREFETCHER;
1202	}	1506	};
		1507	$MAP_PREFETCHER->prio (6);
		1508
		1509	()
1203	}	1510	}
1204		1511
1205	sub save {	1512	sub save {
1206	my ($self) = @_;	1513	my ($self) = @_;
1207		1514
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1515	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1516
1211	$self->{last_save} = $cf::RUNTIME;	1517	$self->{last_save} = $cf::RUNTIME;
1212		1518
1213	return unless $self->dirty;	1519	return unless $self->dirty;
1214		1520
		1521	my $save = $self->save_path; utf8::encode $save;
		1522	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1523
1215	$self->{load_path} = $save;	1524	$self->{load_path} = $save;
1216		1525
1217	return if $self->{deny_save};	1526	return if $self->{deny_save};
1218		1527
		1528	local $self->{last_access} = $self->last_access;#d#
		1529
		1530	cf::async {
		1531	$_->contr->save for $self->players;
		1532	};
		1533
1219	if ($uniq) {	1534	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1536	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1537	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1538	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1539	}
1225	}	1540	}
1226		1541
1227	sub swap_out {	1542	sub swap_out {
1228	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;
1229		1549
1230	return if $self->players;	1550	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1551	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1552	return if $self->{deny_save};
1233		1553
1234	$self->save;
1235	$self->clear;	1554	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1555	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1556	}
1238		1557
1239	sub reset_at {	1558	sub reset_at {
1240	my ($self) = @_;	1559	my ($self) = @_;
1241		1560
1242	# TODO: safety, remove and allow resettable per-player maps	1561	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1563	return 1e99 if $self->{deny_reset};
1245		1564
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1567
1250	$time + $to	1568	$time + $to
1251	}	1569	}
1252		1570
1253	sub should_reset {	1571	sub should_reset {
1254	my ($self) = @_;	1572	my ($self) = @_;
1255		1573
1256	$self->reset_at <= $cf::RUNTIME	1574	$self->reset_at <= $cf::RUNTIME
1257	}	1575	}
1258		1576
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1577	sub reset {
1268	my ($self) = @_;	1578	my ($self) = @_;
1269		1579
		1580	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1581
1270	return if $self->players;	1582	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1583	return if $self->isa ("ext::map_per_player");#d#
1272		1584
1273	warn "resetting map ", $self->path;#d#	1585	warn "resetting map ", $self->path;#d#
1274		1586
1275	delete $cf::MAP{$self->path};	1587	delete $cf::MAP{$self->path};
		1588
		1589	$self->in_memory (cf::MAP_SWAPPED);
		1590	$self->clear;
1276		1591
1277	$_->clear_links_to ($self) for values %cf::MAP;	1592	$_->clear_links_to ($self) for values %cf::MAP;
1278		1593
1279	$self->unlink_save;	1594	$self->unlink_save;
1280	$self->destroy;	1595	$self->destroy;
1281	}	1596	}
1282		1597
1283	sub customise_for {	1598	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1599
1286	if ($map->per_player) {	1600	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1601	my ($self) = @_;
1288	}
1289		1602
1290	$map	1603	delete $cf::MAP{$self->path};
1291	}
1292		1604
1293	sub emergency_save {	1605	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1606
1296	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++));
1297		1612
1298	cf::sync_job {	1613	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1614
1300	$_->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 $_;
1301	};	1637	}
1302		1638
1303	warn "end emergency map save\n";	1639	\@paths
1304	}	1640	}
1305		1641
1306	package cf;	1642	package cf;
1307		1643
1308	=back	1644	=back
1309		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
1310		1672
1311	=head3 cf::object::player	1673	=head3 cf::object::player
1312		1674
1313	=over 4	1675	=over 4
1314		1676
…		…
1350	(ref $cf::CFG{"may_$access"}	1712	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1713	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1714	: $cf::CFG{"may_$access"})
1353	}	1715	}
1354		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	$LINK_MAP
		1745	}
		1746
1355	sub cf::object::player::enter_link {	1747	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1748	my ($self) = @_;
1357		1749
1358	return if $self->map == $LINK_MAP;	1750	$self->deactivate_recursive;
1359		1751
		1752	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1753
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1755	if $self->map;
1362		1756
1363	$self->enter_map ($LINK_MAP, 20, 20);	1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1758	}
1366		1759
1367	sub cf::object::player::leave_link {	1760	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1761	my ($self, $map, $x, $y) = @_;
1369		1762
1370	my $link_pos = delete $self->{_link_pos};	1763	my $link_pos = delete $self->{_link_pos};
1371		1764
1372	unless ($map) {	1765	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1766	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1767	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1768	$map = cf::map::find $map;
1378		1769
1379	unless ($map) {	1770	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1771	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1772	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1773	or die "FATAL: cannot load emergency map\n";
1383	}	1774	}
1384	}	1775	}
1385		1776
1386	($x, $y) = (-1, -1)	1777	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1780	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1781	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1782	if $x <=0 && $y <= 0;
1392		1783
1393	$map->load;	1784	$map->load;
		1785	$map->load_diag;
1394		1786
		1787	return unless $self->contr->active;
1395	$self->activate_recursive;	1788	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	1789	$self->enter_map ($map, $x, $y);
1397	}	1790	}
1398		1791
		1792	cf::player->attach (
		1793	on_logout => sub {
		1794	my ($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
1399	=item $player_object->goto_map ($map, $x, $y)	1824	=item $player_object->goto ($path, $x, $y)
1400		1825
1401	=cut	1826	=cut
1402		1827
1403	sub cf::object::player::goto_map {	1828	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1829	my ($self, $path, $x, $y) = @_;
1405		1830
1406	$self->enter_link;	1831	$self->enter_link;
1407		1832
1408	(Coro::async {	1833	(async {
1409	$path = new cf::path $path;	1834	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1835	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1836	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1837	$map
		1838	} or
		1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1840
1417	$self->leave_link ($map, $x, $y);	1841	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1842	})->prio (1);
1419	}	1843	}
1420		1844
…		…
1424		1848
1425	sub parse_random_map_params {	1849	sub parse_random_map_params {
1426	my ($spec) = @_;	1850	my ($spec) = @_;
1427		1851
1428	my $rmp = { # defaults	1852	my $rmp = { # defaults
1429	xsize => 10,	1853	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1854	ysize => (cf::rndm 15, 40),
		1855	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1856	#layout => string,
1431	};	1857	};
1432		1858
1433	for (split /\n/, $spec) {	1859	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1860	my ($k, $v) = split /\s+/, $_, 2;
1435		1861
…		…
1439	$rmp	1865	$rmp
1440	}	1866	}
1441		1867
1442	sub prepare_random_map {	1868	sub prepare_random_map {
1443	my ($exit) = @_;	1869	my ($exit) = @_;
		1870
		1871	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1872
1445	# all this does is basically replace the /! path by	1873	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1874	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1875	# that depends on the exit object
1448		1876
1449	my $rmp = parse_random_map_params $exit->msg;	1877	my $rmp = parse_random_map_params $exit->msg;
1450		1878
1451	if ($exit->map) {	1879	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	1880	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	1881	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	1882	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	1883	$rmp->{origin_y} = $exit->y;
1456	}	1884	}
1457		1885
1458	$rmp->{random_seed} ||= $exit->random_seed;	1886	$rmp->{random_seed} ||= $exit->random_seed;
1459		1887
1460	my $data = cf::to_json $rmp;	1888	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1889	my $md5 = Digest::MD5::md5_hex $data;
		1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1891
1463	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) {
1464	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;
1465		1896
1466	$exit->slaying ("?random/$md5");	1897	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1898	$exit->msg (undef);
1468	}	1899	}
1469	}	1900	}
…		…
1471	sub cf::object::player::enter_exit {	1902	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	1903	my ($self, $exit) = @_;
1473		1904
1474	return unless $self->type == cf::PLAYER;	1905	return unless $self->type == cf::PLAYER;
1475		1906
		1907	if ($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
1476	$self->enter_link;	1916	$self->enter_link;
1477		1917
1478	(Coro::async {	1918	(async {
		1919	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1920	unless (eval {
1480		1921	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		1922
1487	1;	1923	1;
1488	}) {	1924	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1925	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "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. "
1491	. "Please report this to the dungeon master",	1927	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1928	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1929
1494	warn "ERROR in enter_exit: $@";	1930	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1931	$self->leave_link;
1496	}	1932	}
…		…
1547	on_reply => sub {	1983	on_reply => sub {
1548	my ($ns, $msg) = @_;	1984	my ($ns, $msg) = @_;
1549		1985
1550	# this weird shuffling is so that direct followup queries	1986	# this weird shuffling is so that direct followup queries
1551	# get handled first	1987	# get handled first
1552	my $queue = delete $ns->{query_queue};	1988	my $queue = delete $ns->{query_queue}
		1989	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		1990
1554	(shift @$queue)->[1]->($msg);	1991	(shift @$queue)->[1]->($msg);
1555		1992
1556	push @{ $ns->{query_queue} }, @$queue;	1993	push @{ $ns->{query_queue} }, @$queue;
1557		1994
…		…
1563	}	2000	}
1564	}	2001	}
1565	},	2002	},
1566	);	2003	);
1567		2004
1568	=item $client->coro (\&cb)	2005	=item $client->async (\&cb)
1569		2006
1570	Create a new coroutine, running the specified callback. The coroutine will	2007	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2008	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2009	or loss of connection).
1573		2010
1574	=cut	2011	=cut
1575		2012
1576	sub cf::client::coro {	2013	sub cf::client::async {
1577	my ($self, $cb) = @_;	2014	my ($self, $cb) = @_;
1578		2015
1579	my $coro; $coro = async {	2016	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2017
1586	$coro->on_destroy (sub {	2018	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2019	delete $self->{_coro}{$coro+0};
1588	});	2020	});
1589		2021
…		…
1761		2193
1762	{	2194	{
1763	my $path = cf::localdir . "/database.pst";	2195	my $path = cf::localdir . "/database.pst";
1764		2196
1765	sub db_load() {	2197	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };	2198	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2199	}
1769		2200
1770	my $pid;	2201	my $pid;
1771		2202
1772	sub db_save() {	2203	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;	2204	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {	2205	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;	2206	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";	2207	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;	2208	rename "$path~", $path;
…		…
1785	sub db_sync() {	2215	sub db_sync() {
1786	db_save if $dirty;	2216	db_save if $dirty;
1787	undef $dirty;	2217	undef $dirty;
1788	}	2218	}
1789		2219
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2220	my $idle = Event->idle (
1791	db_sync;	2221	reentrant => 0,
		2222	min => 10,
		2223	max => 20,
		2224	repeat => 0,
		2225	data => WF_AUTOCANCEL,
		2226	cb => \&db_sync,
1792	});	2227	);
1793		2228
1794	sub db_dirty() {	2229	sub db_dirty() {
1795	$dirty = 1;	2230	$dirty = 1;
1796	$idle->start;	2231	$idle->start;
1797	}	2232	}
…		…
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2261	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2262	or return;
1828		2263
1829	local $/;	2264	local $/;
1830	*CFG = YAML::Syck::Load <$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	}
1831	}	2279	}
1832		2280
1833	sub main {	2281	sub main {
1834	# we must not ever block the main coroutine	2282	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2283	local $Coro::idle = sub {
1836	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#
1837	(Coro::unblock_sub {	2285	(async {
1838	Event::one_event;	2286	Event::one_event;
1839	})->();	2287	})->prio (Coro::PRIO_MAX);
1840	};	2288	};
1841		2289
1842	cfg_load;	2290	cfg_load;
1843	db_load;	2291	db_load;
1844	load_extensions;	2292	load_extensions;
		2293
		2294	$TICK_WATCHER->start;
1845	Event::loop;	2295	Event::loop;
1846	}	2296	}
1847		2297
1848	#############################################################################	2298	#############################################################################
1849	# initialisation	2299	# initialisation and cleanup
		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	$map->save;
		2338	}
		2339	warn "end emergency map save\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
1850		2344
1851	sub reload() {	2345	sub reload() {
1852	# can/must only be called in main	2346	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2347	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2348	warn "can only reload from main coroutine";
1855	return;	2349	return;
1856	}	2350	}
1857		2351
1858	warn "reloading...";	2352	warn "reloading...";
1859		2353
1860	local $FREEZE = 1;	2354	warn "cancelling server ticker";
		2355	$TICK_WATCHER->cancel;
		2356
1861	cf::emergency_save;	2357	cf::emergency_save;
1862		2358
1863	eval {	2359	eval {
1864	# 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
1865		2361
1866	# cancel all watchers	2362	warn "syncing database to disk";
		2363	cf::db_sync;
		2364
		2365	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2366	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2367	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2368	}
1870		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
1871	# cancel all extension coros	2378	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2379	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2380	%EXT_CORO = ();
1874		2381
1875	# unload all extensions	2382	warn "removing commands";
1876	for (@exts) {	2383	%COMMAND = ();
		2384
		2385	warn "removing ext commands";
		2386	%EXTCMD = ();
		2387
		2388	warn "unloading/nuking all extensions";
		2389	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2390	warn "... unloading $pkg";
1878	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: $@";
1879	}	2397	}
1880		2398
		2399	warn "... nuking $pkg";
		2400	Symbol::delete_package $pkg;
		2401	}
		2402
1881	# unload all modules loaded from $LIBDIR	2403	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2404	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2405	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2406
1885	warn "removing <$k>";	2407	warn "... unloading $k";
1886	delete $INC{$k};	2408	delete $INC{$k};
1887		2409
1888	$k =~ s/\.pm$//;	2410	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2411	$k =~ s/\//::/g;
1890		2412
…		…
1893	}	2415	}
1894		2416
1895	Symbol::delete_package $k;	2417	Symbol::delete_package $k;
1896	}	2418	}
1897		2419
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2420	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2421	Symbol::delete_package "safe::$_"
1904	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);
1905		2423
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2424	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2425	delete $INC{"cf.pm"};
1911		2426
1912	# don't, removes xs symbols, too,	2427	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2428	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2429	#Symbol::delete_package __PACKAGE__;
1915		2430
1916	# reload cf.pm	2431	warn "unload completed, starting to reload now";
		2432
1917	warn "reloading cf.pm";	2433	warn "reloading cf.pm";
1918	require cf;	2434	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2436
1921	# load config and database again	2437	warn "loading config and database again";
1922	cf::cfg_load;	2438	cf::cfg_load;
1923	cf::db_load;	2439	cf::db_load;
1924		2440
1925	# load extensions
1926	warn "load extensions";	2441	warn "loading extensions";
1927	cf::load_extensions;	2442	cf::load_extensions;
1928		2443
1929	# reattach attachments to objects	2444	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2445	_global_reattach;
		2446	warn "reattaching attachments to maps";
		2447	reattach $_ for values %MAP;
		2448
		2449	warn "restarting server ticker";
		2450
		2451	$TICK_WATCHER->start;
1932	};	2452	};
1933		2453
1934	if ($@) {	2454	if ($@) {
1935	warn $@;	2455	warn $@;
1936	warn "error while reloading, exiting.";	2456	warn "error while reloading, exiting.";
1937	exit 1;	2457	exit 1;
1938	}	2458	}
1939		2459
1940	warn "reloaded successfully";	2460	warn "reloaded";
1941	};	2461	};
1942		2462
1943	#############################################################################	2463	our $RELOAD_WATCHER; # used only during reload
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2464
1988	register_command "reload" => sub {	2465	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2466	my ($who, $arg) = @_;
1990		2467
1991	if ($who->flag (FLAG_WIZ)) {	2468	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start 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 {
1993	reload;	2479	reload;
1994	$who->message ("end of reload.");	2480	undef $RELOAD_WATCHER;
		2481	},
		2482	);
1995	}	2483	}
1996	};	2484	};
1997		2485
1998	unshift @INC, $LIBDIR;	2486	unshift @INC, $LIBDIR;
		2487
		2488	my $bug_warning = 0;
1999		2489
2000	$TICK_WATCHER = Event->timer (	2490	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2491	reentrant => 0,
		2492	parked => 1,
2002	prio => 0,	2493	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2494	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2495	data => WF_AUTOCANCEL,
2005	cb => sub {	2496	cb => sub {
2006	unless ($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
2007	cf::server_tick; # one server iteration	2505	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2506	$RUNTIME += $TICK;
2009	}
2010
2011	$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#
2012		2517
2013	# 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
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2520
2016	$TICK_WATCHER->at ($NEXT_TICK);	2521	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2522	$TICK_WATCHER->start;
2018	},	2523	},
2019	);	2524	);
2020		2525
2021	IO::AIO::max_poll_time $TICK * 0.2;	2526	IO::AIO::max_poll_time $TICK * 0.1;
2022		2527
2023	Event->io (	2528	undef $Coro::AIO::WATCHER;
		2529	$AIO_POLL_WATCHER = Event->io (
		2530	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2531	fd => IO::AIO::poll_fileno,
2025	poll => 'r',	2532	poll => 'r',
2026	prio => 5,	2533	prio => 6,
2027	data => WF_AUTOCANCEL,	2534	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,	2535	cb => \&IO::AIO::poll_cb,
2029	);	2536	);
2030		2537
2031	Event->timer (	2538	$WRITE_RUNTIME_WATCHER = Event->timer (
		2539	reentrant => 0,
2032	data => WF_AUTOCANCEL,	2540	data => WF_AUTOCANCEL,
2033	after => 0,	2541	after => 1,
2034	interval => 10,	2542	interval => 10,
2035	cb => sub {	2543	prio => 6, # keep it lowest so it acts like a watchdog
2036	(Coro::unblock_sub {	2544	cb => Coro::unblock_sub {
2037	write_runtime	2545	write_runtime
2038	or warn "ERROR: unable to write runtime file: $!";	2546	or warn "ERROR: unable to write runtime file: $!";
2039	})->();
2040	},	2547	},
2041	);	2548	);
2042		2549
		2550	END { cf::emergency_save }
		2551
2043	1	2552	1
2044		2553

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