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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 1.220 by root, Sat Feb 17 23:54:35 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 BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$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		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	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	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	310	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	311	# till the operation succeeds, freezing the server :/
205		312
206	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	314	# (but this is cancel-safe)
208	local $FREEZE = 1;	315	my $freeze_guard = freeze_mainloop;
209		316
210	my $busy = 1;	317	my $busy = 1;
211	my @res;	318	my @res;
212		319
213	(Coro::async {	320	(async {
214	@res = eval { $job->() };	321	@res = eval { $job->() };
215	warn $@ if $@;	322	warn $@ if $@;
216	undef $busy;	323	undef $busy;
217	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
218		325
219	while ($busy) {	326	while ($busy) {
220	Coro::cede_notself;	327	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	328	}
223		329
224	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
225	} else {	331	} else {
226	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
227		333
228	$job->()	334	$job->()
229	}	335	}
230	}	336	}
231		337
232	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
233		339
234	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
236		342
237	=cut	343	=cut
238		344
239	sub coro(&) {	345	sub async_ext(&) {
240	my $cb = shift;	346	my $cb = shift;
241		347
242	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		349
249	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
251	});	352	});
252	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
253		354
254	$coro	355	$coro
255	}	356	}
256		357
257	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
258	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
259		362
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	364	or return;
262		365
		366	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	371	and return;
266		372
		373	# always fsync - this file is important
267	aio_fsync $fh	374	aio_fsync $fh
268	and return;	375	and return;
269		376
270	close $fh	377	close $fh
271	or return;	378	or return;
…		…
277	}	384	}
278		385
279	=back	386	=back
280		387
281	=cut	388	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		389
393	#############################################################################	390	#############################################################################
394		391
395	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
396		393
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	520	our @CB_MAP = ();
524		521
525	my %attachment;	522	my %attachment;
526		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
527	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
529		532
530	use sort 'stable';	533	use sort 'stable';
531		534
…		…
702	# object support	705	# object support
703		706
704	sub reattach {	707	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		712
708	my $registry = $obj->registry;	713	my $registry = $obj->registry;
709		714
710	@$registry = ();	715	@$registry = ();
711		716
…		…
758	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
759		764
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	769	close $fh;
765		770
766	if (@$objs) {	771	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	777	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
774	}	779	}
775	} else {	780	} else {
776	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
804	or return;	809	or return;
805		810
806	unless (aio_stat "$filename.pst") {	811	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	812	(aio_load "$filename.pst", $av) >= 0
808	or return;	813	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
810	}	815	}
811		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	819	return ($data, $av);
813	}	820	}
814		821
815	#############################################################################	822	#############################################################################
816	# command handling &c	823	# command handling &c
…		…
841	=cut	848	=cut
842		849
843	sub register_extcmd {	850	sub register_extcmd {
844	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
845		852
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
850	}	854	}
851		855
852	cf::player->attach (	856	cf::player->attach (
853	on_command => sub {	857	on_command => sub {
854	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
867		871
868	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
869		873
870	if (ref $msg) {	874	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	878	}
875	}	879	}
876	} else {	880	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		883
880	cf::override;	884	cf::override;
881	},	885	},
882	);	886	);
883		887
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	888	sub load_extension {
891	my ($path) = @_;	889	my ($path) = @_;
892		890
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	892	my $base = $1;
895	my $pkg = $1;	893	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
898		896
899	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
900		898
901	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
902	or die "$path: $!";	900	or die "$path: $!";
903		901
904	my $source =	902	my $source =
905	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
908	. "\n};\n1";	906	. "\n};\n1";
909		907
910	eval $source	908	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	910	: "extension disabled.\n";
913		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	912	warn $@;
915	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
916		914	exit 1;
917	# no strict 'refs';	915	}
918	# @{"$pkg\::ISA"} = ext::;	916	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	# }	917	}
933		918
934	# remove commands	919	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	}	920	}
959		921
960	sub load_extensions {	922	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	924	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
967	}	929	}
968	}	930	}
969		931
970	#############################################################################	932	#############################################################################
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		933
1008	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1009		935
1010	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1011		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1012	=head3 cf::player	944	=head3 cf::player
1013		945
1014	=over 4	946	=over 4
1015		947
1016	=item cf::player::exists $login	948	=item cf::player::find $login
1017		949
1018	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1019		951
1020	=cut	952	=cut
1021		953
1022	sub cf::player::exists($) {	954	sub playerdir($) {
1023	cf::player::find $_[0]	955	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item cf::player::list_logins
		1060
		1061	Returns am arrayref of all valid playernames in the system, can take a
		1062	while and may block, so not sync_job-capable, ever.
		1063
		1064	=cut
		1065
		1066	sub list_logins {
		1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1068	or return [];
		1069
		1070	my @logins;
		1071
		1072	for my $login (@$dirs) {
		1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1074	aio_read $fh, 0, 512, my $buf, 0 or next;
		1075	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1076
		1077	utf8::decode $login;
		1078	push @logins, $login;
		1079	}
		1080
		1081	\@logins
		1082	}
		1083
		1084	=item $player->maps
		1085
		1086	Returns an arrayref of map paths that are private for this
		1087	player. May block.
		1088
		1089	=cut
		1090
		1091	sub maps($) {
		1092	my ($pl) = @_;
		1093
		1094	$pl = ref $pl ? $pl->ob->name : $pl;
		1095
		1096	my $files = aio_readdir playerdir $pl
		1097	or return;
		1098
		1099	my @paths;
		1100
		1101	for (@$files) {
		1102	utf8::decode $_;
		1103	next if /\.(?:pl|pst)$/;
		1104	next unless /^$PATH_SEP/o;
		1105
		1106	push @paths, cf::map::normalise "~$pl/$_";
		1107	}
		1108
		1109	\@paths
1025	}	1110	}
1026		1111
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1112	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1113
1029	Sends an ext reply to the player.	1114	Sends an ext reply to the player.
1030		1115
1031	=cut	1116	=cut
1032		1117
1033	sub cf::player::ext_reply($$$%) {	1118	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1119	my ($self, $id, %msg) = @_;
1035		1120
1036	$msg{msgid} = $id;	1121	$msg{msgid} = $id;
1037		1122
1038	$self->send ("ext " . to_json \%msg);	1123	$self->send ("ext " . cf::to_json \%msg);
1039	}	1124	}
		1125
		1126	package cf;
1040		1127
1041	=back	1128	=back
1042		1129
1043		1130
1044	=head3 cf::map	1131	=head3 cf::map
…		…
1050	package cf::map;	1137	package cf::map;
1051		1138
1052	use Fcntl;	1139	use Fcntl;
1053	use Coro::AIO;	1140	use Coro::AIO;
1054		1141
		1142	use overload
		1143	'""' => \&as_string,
		1144	fallback => 1;
		1145
1055	our $MAX_RESET = 7200;	1146	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1147	our $DEFAULT_RESET = 3000;
1057		1148
1058	sub generate_random_map {	1149	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1150	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1151	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1152	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1156	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1157	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1160	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1161	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1162	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1163	(cf::region::find $rmp->{region}), $rmp->{custom}
		1164	)
		1165	}
		1166
		1167	=item cf::map->register ($regex, $prio)
		1168
		1169	Register a handler for the map path matching the given regex at the
		1170	givne priority (higher is better, built-in handlers have priority 0, the
		1171	default).
		1172
		1173	=cut
		1174
		1175	sub register {
		1176	my (undef, $regex, $prio) = @_;
		1177	my $pkg = caller;
		1178
		1179	no strict;
		1180	push @{"$pkg\::ISA"}, __PACKAGE__;
		1181
		1182	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1183	}
		1184
		1185	# also paths starting with '/'
		1186	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1187
		1188	sub thawer_merge {
		1189	my ($self, $merge) = @_;
		1190
		1191	# we have to keep some variables in memory intact
		1192	local $self->{path};
		1193	local $self->{load_path};
		1194	local $self->{deny_save};
		1195	local $self->{deny_reset};
		1196
		1197	$self->SUPER::thawer_merge ($merge);
		1198	}
		1199
		1200	sub normalise {
		1201	my ($path, $base) = @_;
		1202
		1203	$path = "$path"; # make sure its a string
		1204
		1205	$path =~ s/\.map$//;
		1206
		1207	# map plan:
		1208	#
		1209	# /! non-realised random map exit (special hack!)
		1210	# {... are special paths that are not being touched
		1211	# ?xxx/... are special absolute paths
		1212	# ?random/... random maps
		1213	# /... normal maps
		1214	# ~user/... per-player map of a specific user
		1215
		1216	$path =~ s/$PATH_SEP/\//go;
		1217
		1218	# treat it as relative path if it starts with
		1219	# something that looks reasonable
		1220	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1221	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1222
		1223	$base =~ s{[^/]+/?$}{};
		1224	$path = "$base/$path";
		1225	}
		1226
		1227	for ($path) {
		1228	redo if s{//}{/};
		1229	redo if s{/\.?/}{/};
		1230	redo if s{/[^/]+/\.\./}{/};
		1231	}
		1232
		1233	$path
		1234	}
		1235
		1236	sub new_from_path {
		1237	my (undef, $path, $base) = @_;
		1238
		1239	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1240
		1241	$path = normalise $path, $base;
		1242
		1243	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1244	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1245	my $self = bless cf::map::new, $pkg;
		1246	$self->{path} = $path; $self->path ($path);
		1247	$self->init; # pass $1 etc.
		1248	return $self;
		1249	}
		1250	}
		1251
		1252	Carp::carp "unable to resolve path '$path' (base '$base').";
		1253	()
		1254	}
		1255
		1256	sub init {
		1257	my ($self) = @_;
		1258
		1259	$self
		1260	}
		1261
		1262	sub as_string {
		1263	my ($self) = @_;
		1264
		1265	"$self->{path}"
		1266	}
		1267
		1268	# the displayed name, this is a one way mapping
		1269	sub visible_name {
		1270	&as_string
		1271	}
		1272
		1273	# the original (read-only) location
		1274	sub load_path {
		1275	my ($self) = @_;
		1276
		1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1278	}
		1279
		1280	# the temporary/swap location
		1281	sub save_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1286	}
		1287
		1288	# the unique path, undef == no special unique path
		1289	sub uniq_path {
		1290	my ($self) = @_;
		1291
		1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1294	}
1076		1295
1077	# and all this just because we cannot iterate over	1296	# and all this just because we cannot iterate over
1078	# all maps in C++...	1297	# all maps in C++...
1079	sub change_all_map_light {	1298	sub change_all_map_light {
1080	my ($change) = @_;	1299	my ($change) = @_;
1081		1300
1082	$_->change_map_light ($change) for values %cf::MAP;	1301	$_->change_map_light ($change)
		1302	for grep $_->outdoor, values %cf::MAP;
1083	}	1303	}
1084		1304
		1305	sub unlink_save {
		1306	my ($self) = @_;
		1307
		1308	utf8::encode (my $save = $self->save_path);
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1311	}
		1312
1085	sub try_load_header($) {	1313	sub load_header_from($) {
1086	my ($path) = @_;	1314	my ($self, $path) = @_;
1087		1315
1088	utf8::encode $path;	1316	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1317	#aio_open $path, O_RDONLY, 0
		1318	# or return;
		1319
		1320	$self->_load_header ($path)
1090	or return;	1321	or return;
1091		1322
1092	my $map = cf::map::new	1323	$self->{load_path} = $path;
		1324
		1325	1
		1326	}
		1327
		1328	sub load_header_orig {
		1329	my ($self) = @_;
		1330
		1331	$self->load_header_from ($self->load_path)
		1332	}
		1333
		1334	sub load_header_temp {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->save_path)
		1338	}
		1339
		1340	sub prepare_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->last_access ((delete $self->{last_access})
		1344	|| $cf::RUNTIME); #d#
		1345	# safety
		1346	$self->{instantiate_time} = $cf::RUNTIME
		1347	if $self->{instantiate_time} > $cf::RUNTIME;
		1348	}
		1349
		1350	sub prepare_orig {
		1351	my ($self) = @_;
		1352
		1353	$self->{load_original} = 1;
		1354	$self->{instantiate_time} = $cf::RUNTIME;
		1355	$self->last_access ($cf::RUNTIME);
		1356	$self->instantiate;
		1357	}
		1358
		1359	sub load_header {
		1360	my ($self) = @_;
		1361
		1362	if ($self->load_header_temp) {
		1363	$self->prepare_temp;
		1364	} else {
		1365	$self->load_header_orig
1093	or return;	1366	or return;
		1367	$self->prepare_orig;
		1368	}
1094		1369
1095	$map->load_header ($path)	1370	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1371	}
1102		1372
		1373	sub find;
1103	sub find_map {	1374	sub find {
1104	my ($path, $origin) = @_;	1375	my ($path, $origin) = @_;
1105		1376
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1377	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1378
		1379	cf::lock_wait "map_find:$path";
		1380
1111	$cf::MAP{$key} || do {	1381	$cf::MAP{$path} || do {
1112	# do it the slow way	1382	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1383	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;	1384	or return;
1127		1385
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);	1386	$map->{last_save} = $cf::RUNTIME;
1139		1387
1140	if ($map->should_reset) {	1388	$map->load_header
		1389	or return;
		1390
		1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1392	# doing this can freeze the server in a sync job, obviously
		1393	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1394	$map->reset;
1142	$map = find_map $path;	1395	undef $guard;
		1396	return find $path;
1143	}	1397	}
1144		1398
1145	$cf::MAP{$key} = $map	1399	$cf::MAP{$path} = $map
1146	}	1400	}
1147	}	1401	}
		1402
		1403	sub pre_load { }
		1404	sub post_load { }
1148		1405
1149	sub load {	1406	sub load {
1150	my ($self) = @_;	1407	my ($self) = @_;
1151		1408
		1409	local $self->{deny_reset} = 1; # loading can take a long time
		1410
		1411	my $path = $self->{path};
		1412	my $guard = cf::lock_acquire "map_load:$path";
		1413
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1414	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1415
1154	$self->in_memory (cf::MAP_LOADING);	1416	$self->in_memory (cf::MAP_LOADING);
1155		1417
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1418	$self->alloc;
		1419
		1420	$self->pre_load;
		1421
1159	$self->load_objects ($self->{load_path}, 1)	1422	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1423	or return;
1161		1424
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1426	if delete $self->{load_original};
1164		1427
1165	if (my $uniq = $path->uniq_path) {	1428	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1429	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1430	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1431	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1432	$self->_load_objects ($uniq, 0);
1170	}	1433	}
1171	}	1434	}
		1435
		1436	Coro::cede;
1172		1437
1173	# now do the right thing for maps	1438	# now do the right thing for maps
1174	$self->link_multipart_objects;	1439	$self->link_multipart_objects;
1175		1440
1176	if ($self->{path}->is_style_map) {	1441	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1442	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1443	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1444	$self->update_buttons;
		1445	Coro::cede;
1183	$self->set_darkness_map;	1446	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1447	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1448	unless $self->difficulty;
		1449	Coro::cede;
1186	$self->activate;	1450	$self->activate;
1187	}	1451	}
1188		1452
		1453	$self->post_load;
		1454
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1455	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1456	}
1191		1457
1192	sub load_map_sync {	1458	sub customise_for {
		1459	my ($self, $ob) = @_;
		1460
		1461	return find "~" . $ob->name . "/" . $self->{path}
		1462	if $self->per_player;
		1463
		1464	$self
		1465	}
		1466
		1467	# find and load all maps in the 3x3 area around a map
		1468	sub load_diag {
		1469	my ($map) = @_;
		1470
		1471	my @diag; # diagonal neighbours
		1472
		1473	for (0 .. 3) {
		1474	my $neigh = $map->tile_path ($_)
		1475	or next;
		1476	$neigh = find $neigh, $map
		1477	or next;
		1478	$neigh->load;
		1479
		1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1482	}
		1483
		1484	for (@diag) {
		1485	my $neigh = find @$_
		1486	or next;
		1487	$neigh->load;
		1488	}
		1489	}
		1490
		1491	sub find_sync {
1193	my ($path, $origin) = @_;	1492	my ($path, $origin) = @_;
1194		1493
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1494	cf::sync_job { find $path, $origin }
		1495	}
1196		1496
1197	cf::sync_job {	1497	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1498	my ($map) = @_;
1199	or return;	1499
		1500	cf::sync_job { $map->load };
		1501	}
		1502
		1503	our %MAP_PREFETCH;
		1504	our $MAP_PREFETCHER = undef;
		1505
		1506	sub find_async {
		1507	my ($path, $origin) = @_;
		1508
		1509	$path = normalise $path, $origin && $origin->{path};
		1510
		1511	if (my $map = $cf::MAP{$path}) {
		1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1513	}
		1514
		1515	undef $MAP_PREFETCH{$path};
		1516	$MAP_PREFETCHER ||= cf::async {
		1517	while (%MAP_PREFETCH) {
		1518	for my $path (keys %MAP_PREFETCH) {
		1519	my $map = find $path
		1520	or next;
1200	$map->load;	1521	$map->load;
1201	$map	1522
		1523	delete $MAP_PREFETCH{$path};
		1524	}
		1525	}
		1526	undef $MAP_PREFETCHER;
1202	}	1527	};
		1528	$MAP_PREFETCHER->prio (6);
		1529
		1530	()
1203	}	1531	}
1204		1532
1205	sub save {	1533	sub save {
1206	my ($self) = @_;	1534	my ($self) = @_;
1207		1535
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1537
1211	$self->{last_save} = $cf::RUNTIME;	1538	$self->{last_save} = $cf::RUNTIME;
1212		1539
1213	return unless $self->dirty;	1540	return unless $self->dirty;
1214		1541
		1542	my $save = $self->save_path; utf8::encode $save;
		1543	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1544
1215	$self->{load_path} = $save;	1545	$self->{load_path} = $save;
1216		1546
1217	return if $self->{deny_save};	1547	return if $self->{deny_save};
1218		1548
		1549	local $self->{last_access} = $self->last_access;#d#
		1550
		1551	cf::async {
		1552	$_->contr->save for $self->players;
		1553	};
		1554
1219	if ($uniq) {	1555	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1558	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1560	}
1225	}	1561	}
1226		1562
1227	sub swap_out {	1563	sub swap_out {
1228	my ($self) = @_;	1564	my ($self) = @_;
		1565
		1566	# save first because save cedes
		1567	$self->save;
		1568
		1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1570
1230	return if $self->players;	1571	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1573	return if $self->{deny_save};
1233		1574
1234	$self->save;
1235	$self->clear;	1575	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1576	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1577	}
1238		1578
1239	sub reset_at {	1579	sub reset_at {
1240	my ($self) = @_;	1580	my ($self) = @_;
1241		1581
1242	# TODO: safety, remove and allow resettable per-player maps	1582	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1584	return 1e99 if $self->{deny_reset};
1245		1585
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1588
1250	$time + $to	1589	$time + $to
1251	}	1590	}
1252		1591
1253	sub should_reset {	1592	sub should_reset {
1254	my ($self) = @_;	1593	my ($self) = @_;
1255		1594
1256	$self->reset_at <= $cf::RUNTIME	1595	$self->reset_at <= $cf::RUNTIME
1257	}	1596	}
1258		1597
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 {	1598	sub reset {
1268	my ($self) = @_;	1599	my ($self) = @_;
1269		1600
		1601	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1602
1270	return if $self->players;	1603	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1604	return if $self->isa ("ext::map_per_player");#d#
1272		1605
1273	warn "resetting map ", $self->path;#d#	1606	warn "resetting map ", $self->path;#d#
1274		1607
		1608	$self->in_memory (cf::MAP_SWAPPED);
		1609
		1610	# need to save uniques path
		1611	unless ($self->{deny_save}) {
		1612	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1613
		1614	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1615	if $uniq;
		1616	}
		1617
1275	delete $cf::MAP{$self->path};	1618	delete $cf::MAP{$self->path};
		1619
		1620	$self->clear;
1276		1621
1277	$_->clear_links_to ($self) for values %cf::MAP;	1622	$_->clear_links_to ($self) for values %cf::MAP;
1278		1623
1279	$self->unlink_save;	1624	$self->unlink_save;
1280	$self->destroy;	1625	$self->destroy;
1281	}	1626	}
1282		1627
1283	sub customise_for {	1628	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1629
1286	if ($map->per_player) {	1630	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1631	my ($self) = @_;
1288	}
1289		1632
1290	$map	1633	delete $cf::MAP{$self->path};
1291	}
1292		1634
1293	sub emergency_save {	1635	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1636
1296	warn "enter emergency map save\n";	1637	bless $self, "cf::map";
		1638	delete $self->{deny_reset};
		1639	$self->{deny_save} = 1;
		1640	$self->reset_timeout (1);
		1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1642
1298	cf::sync_job {	1643	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1644
1300	$_->save for values %cf::MAP;	1645	$self->reset; # polite request, might not happen
		1646	}
		1647
		1648	=item cf::map::unique_maps
		1649
		1650	Returns an arrayref of paths of all shared maps that have
		1651	instantiated unique items. May block.
		1652
		1653	=cut
		1654
		1655	sub unique_maps() {
		1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1657	or return;
		1658
		1659	my @paths;
		1660
		1661	for (@$files) {
		1662	utf8::decode $_;
		1663	next if /\.pst$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise $_;
1301	};	1667	}
1302		1668
1303	warn "end emergency map save\n";	1669	\@paths
1304	}	1670	}
1305		1671
1306	package cf;	1672	package cf;
1307		1673
1308	=back	1674	=back
1309		1675
		1676	=head3 cf::object
		1677
		1678	=cut
		1679
		1680	package cf::object;
		1681
		1682	=over 4
		1683
		1684	=item $ob->inv_recursive
		1685
		1686	Returns the inventory of the object _and_ their inventories, recursively.
		1687
		1688	=cut
		1689
		1690	sub inv_recursive_;
		1691	sub inv_recursive_ {
		1692	map { $_, inv_recursive_ $_->inv } @_
		1693	}
		1694
		1695	sub inv_recursive {
		1696	inv_recursive_ inv $_[0]
		1697	}
		1698
		1699	package cf;
		1700
		1701	=back
1310		1702
1311	=head3 cf::object::player	1703	=head3 cf::object::player
1312		1704
1313	=over 4	1705	=over 4
1314		1706
…		…
1350	(ref $cf::CFG{"may_$access"}	1742	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1743	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1744	: $cf::CFG{"may_$access"})
1353	}	1745	}
1354		1746
		1747	=item $player_object->enter_link
		1748
		1749	Freezes the player and moves him/her to a special map (C<{link}>).
		1750
		1751	The player should be reasonably safe there for short amounts of time. You
		1752	I<MUST> call C<leave_link> as soon as possible, though.
		1753
		1754	Will never block.
		1755
		1756	=item $player_object->leave_link ($map, $x, $y)
		1757
		1758	Moves the player out of the special C<{link}> map onto the specified
		1759	map. If the map is not valid (or omitted), the player will be moved back
		1760	to the location he/she was before the call to C<enter_link>, or, if that
		1761	fails, to the emergency map position.
		1762
		1763	Might block.
		1764
		1765	=cut
		1766
		1767	sub link_map {
		1768	unless ($LINK_MAP) {
		1769	$LINK_MAP = cf::map::find "{link}"
		1770	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1771	$LINK_MAP->load;
		1772	}
		1773
		1774	$LINK_MAP
		1775	}
		1776
1355	sub cf::object::player::enter_link {	1777	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1778	my ($self) = @_;
1357		1779
1358	return if $self->map == $LINK_MAP;	1780	$self->deactivate_recursive;
1359		1781
		1782	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1783
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1785	if $self->map;
1362		1786
1363	$self->enter_map ($LINK_MAP, 20, 20);	1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1788	}
1366		1789
1367	sub cf::object::player::leave_link {	1790	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1791	my ($self, $map, $x, $y) = @_;
1369		1792
1370	my $link_pos = delete $self->{_link_pos};	1793	my $link_pos = delete $self->{_link_pos};
1371		1794
1372	unless ($map) {	1795	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1796	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1797	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1798	$map = cf::map::find $map;
1378		1799
1379	unless ($map) {	1800	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1801	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1802	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1803	or die "FATAL: cannot load emergency map\n";
1383	}	1804	}
1384	}	1805	}
1385		1806
1386	($x, $y) = (-1, -1)	1807	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1810	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1811	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1812	if $x <=0 && $y <= 0;
1392		1813
1393	$map->load;	1814	$map->load;
		1815	$map->load_diag;
1394		1816
		1817	return unless $self->contr->active;
1395	$self->activate_recursive;	1818	$self->activate_recursive;
		1819
		1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1821	$self->enter_map ($map, $x, $y);
1397	}	1822	}
1398		1823
		1824	cf::player->attach (
		1825	on_logout => sub {
		1826	my ($pl) = @_;
		1827
		1828	# abort map switching before logout
		1829	if ($pl->ob->{_link_pos}) {
		1830	cf::sync_job {
		1831	$pl->ob->leave_link
		1832	};
		1833	}
		1834	},
		1835	on_login => sub {
		1836	my ($pl) = @_;
		1837
		1838	# try to abort aborted map switching on player login :)
		1839	# should happen only on crashes
		1840	if ($pl->ob->{_link_pos}) {
		1841	$pl->ob->enter_link;
		1842	(async {
		1843	$pl->ob->reply (undef,
		1844	"There was an internal problem at your last logout, "
		1845	. "the server will try to bring you to your intended destination in a second.",
		1846	cf::NDI_RED);
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	Coro::Timer::sleep 1;
		1850	$pl->ob->leave_link;
		1851	})->prio (2);
		1852	}
		1853	},
		1854	);
		1855
1399	=item $player_object->goto_map ($map, $x, $y)	1856	=item $player_object->goto ($path, $x, $y)
1400		1857
1401	=cut	1858	=cut
1402		1859
1403	sub cf::object::player::goto_map {	1860	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1861	my ($self, $path, $x, $y) = @_;
1405		1862
1406	$self->enter_link;	1863	$self->enter_link;
1407		1864
1408	(Coro::async {	1865	(async {
1409	$path = new cf::path $path;	1866	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1867	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1868	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1869	$map
		1870	} or
		1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1872
1417	$self->leave_link ($map, $x, $y);	1873	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1874	})->prio (1);
1419	}	1875	}
1420		1876
…		…
1424		1880
1425	sub parse_random_map_params {	1881	sub parse_random_map_params {
1426	my ($spec) = @_;	1882	my ($spec) = @_;
1427		1883
1428	my $rmp = { # defaults	1884	my $rmp = { # defaults
1429	xsize => 10,	1885	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1886	ysize => (cf::rndm 15, 40),
		1887	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1888	#layout => string,
1431	};	1889	};
1432		1890
1433	for (split /\n/, $spec) {	1891	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1892	my ($k, $v) = split /\s+/, $_, 2;
1435		1893
…		…
1439	$rmp	1897	$rmp
1440	}	1898	}
1441		1899
1442	sub prepare_random_map {	1900	sub prepare_random_map {
1443	my ($exit) = @_;	1901	my ($exit) = @_;
		1902
		1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1904
1445	# all this does is basically replace the /! path by	1905	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1906	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1907	# that depends on the exit object
1448		1908
1449	my $rmp = parse_random_map_params $exit->msg;	1909	my $rmp = parse_random_map_params $exit->msg;
1450		1910
1451	if ($exit->map) {	1911	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	1912	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	1913	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	1914	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	1915	$rmp->{origin_y} = $exit->y;
1456	}	1916	}
1457		1917
1458	$rmp->{random_seed} ||= $exit->random_seed;	1918	$rmp->{random_seed} ||= $exit->random_seed;
1459		1919
1460	my $data = cf::to_json $rmp;	1920	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1921	my $md5 = Digest::MD5::md5_hex $data;
		1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1923
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1925	aio_write $fh, 0, (length $data), $data, 0;
		1926	undef $fh;
		1927	aio_rename "$meta~", $meta;
1465		1928
1466	$exit->slaying ("?random/$md5");	1929	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1930	$exit->msg (undef);
1468	}	1931	}
1469	}	1932	}
…		…
1471	sub cf::object::player::enter_exit {	1934	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	1935	my ($self, $exit) = @_;
1473		1936
1474	return unless $self->type == cf::PLAYER;	1937	return unless $self->type == cf::PLAYER;
1475		1938
		1939	if ($exit->slaying eq "/!") {
		1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1941	cf::sync_job { prepare_random_map $exit };
		1942	}
		1943
		1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1945	my $hp = $exit->stats->hp;
		1946	my $sp = $exit->stats->sp;
		1947
1476	$self->enter_link;	1948	$self->enter_link;
1477		1949
1478	(Coro::async {	1950	(async {
		1951	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1952	unless (eval {
1480		1953	$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		1954
1487	1;	1955	1;
1488	}) {	1956	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1957	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1958	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1959	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1960	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1961
1494	warn "ERROR in enter_exit: $@";	1962	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1963	$self->leave_link;
1496	}	1964	}
…		…
1547	on_reply => sub {	2015	on_reply => sub {
1548	my ($ns, $msg) = @_;	2016	my ($ns, $msg) = @_;
1549		2017
1550	# this weird shuffling is so that direct followup queries	2018	# this weird shuffling is so that direct followup queries
1551	# get handled first	2019	# get handled first
1552	my $queue = delete $ns->{query_queue};	2020	my $queue = delete $ns->{query_queue}
		2021	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2022
1554	(shift @$queue)->[1]->($msg);	2023	(shift @$queue)->[1]->($msg);
		2024	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2025
1556	push @{ $ns->{query_queue} }, @$queue;	2026	push @{ $ns->{query_queue} }, @$queue;
1557		2027
1558	if (@{ $ns->{query_queue} } == @$queue) {	2028	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2029	if (@$queue) {
…		…
1563	}	2033	}
1564	}	2034	}
1565	},	2035	},
1566	);	2036	);
1567		2037
1568	=item $client->coro (\&cb)	2038	=item $client->async (\&cb)
1569		2039
1570	Create a new coroutine, running the specified callback. The coroutine will	2040	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2041	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2042	or loss of connection).
1573		2043
1574	=cut	2044	=cut
1575		2045
1576	sub cf::client::coro {	2046	sub cf::client::async {
1577	my ($self, $cb) = @_;	2047	my ($self, $cb) = @_;
1578		2048
1579	my $coro; $coro = async {	2049	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2050
1586	$coro->on_destroy (sub {	2051	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2052	delete $self->{_coro}{$coro+0};
1588	});	2053	});
1589		2054
…		…
1725	The parameter C<$family> should best start with the name of the extension	2190	The parameter C<$family> should best start with the name of the extension
1726	using it, it should be unique.	2191	using it, it should be unique.
1727		2192
1728	=over 4	2193	=over 4
1729		2194
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2195	=item $value = cf::db_get $family => $key
1737		2196
1738	Returns a single value from the database	2197	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2198
1745	=item cf::db_put $family => $key => $value	2199	=item cf::db_put $family => $key => $value
1746		2200
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2201	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2202
1758	=cut	2203	=cut
1759		2204
1760	our $DB;	2205	our $DB;
1761		2206
1762	{	2207	sub db_init {
		2208	unless ($DB) {
		2209	$DB = BDB::db_create $DB_ENV;
		2210
		2211	cf::sync_job {
		2212	eval {
		2213	$DB->set_flags (BDB::CHKSUM);
		2214
		2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2217	cf::cleanup "db_open(db): $!" if $!;
		2218	};
		2219	cf::cleanup "db_open(db): $@" if $@;
		2220	};
		2221
1763	my $path = cf::localdir . "/database.pst";	2222	my $path = cf::localdir . "/database.pst";
		2223	if (stat $path) {
		2224	cf::sync_job {
		2225	my $pst = Storable::retrieve $path;
1764		2226
1765	sub db_load() {	2227	cf::db_put (board => data => $pst->{board});
1766	warn "loading database $path\n";#d# remove later	2228	cf::db_put (guildrules => data => $pst->{guildrules});
1767	$DB = stat $path ? Storable::retrieve $path : { };	2229	cf::db_put (rent => balance => $pst->{rent}{balance});
1768	}	2230	BDB::db_env_txn_checkpoint $DB_ENV;
1769		2231
1770	my $pid;	2232	unlink $path;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2233	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});
1793
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {
1800	@_ >= 2
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804
1805	sub db_put($$;$) {
1806	if (@_ >= 3) {
1807	$DB->{$_[0]}{$_[1]} = $_[2];
1808	} else {
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813
1814	cf::global->attach (
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	2234	}
1819	);	2235	}
		2236	}
		2237
		2238	sub db_get($$) {
		2239	my $key = "$_[0]/$_[1]";
		2240
		2241	cf::sync_job {
		2242	BDB::db_get $DB, undef, $key, my $data;
		2243
		2244	$! ? ()
		2245	: Compress::LZF::sthaw $data
		2246	}
		2247	}
		2248
		2249	sub db_put($$$) {
		2250	BDB::dbreq_pri 4;
		2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1820	}	2252	}
1821		2253
1822	#############################################################################	2254	#############################################################################
1823	# the server's main()	2255	# the server's init and main functions
		2256
		2257	sub init_resources {
		2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2259	or die "unable to load regions file\n";#d#
		2260	}
1824		2261
1825	sub cfg_load {	2262	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2263	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2264	or return;
1828		2265
1829	local $/;	2266	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2267	*CFG = YAML::Syck::Load <$fh>;
		2268
		2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2270
		2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2273
		2274	if (exists $CFG{mlockall}) {
		2275	eval {
		2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2277	and die "WARNING: m(un)lockall failed: $!\n";
		2278	};
		2279	warn $@ if $@;
		2280	}
		2281	}
		2282
		2283	sub init {
		2284	init_resources;
1831	}	2285	}
1832		2286
1833	sub main {	2287	sub main {
1834	# we must not ever block the main coroutine	2288	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2289	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2291	(async {
1838	Event::one_event;	2292	Event::one_event;
1839	})->();	2293	})->prio (Coro::PRIO_MAX);
1840	};	2294	};
1841		2295
1842	cfg_load;	2296	cfg_load;
1843	db_load;	2297	db_init;
1844	load_extensions;	2298	load_extensions;
		2299
		2300	$TICK_WATCHER->start;
1845	Event::loop;	2301	Event::loop;
1846	}	2302	}
1847		2303
1848	#############################################################################	2304	#############################################################################
1849	# initialisation	2305	# initialisation and cleanup
		2306
		2307	# install some emergency cleanup handlers
		2308	BEGIN {
		2309	for my $signal (qw(INT HUP TERM)) {
		2310	Event->signal (
		2311	reentrant => 0,
		2312	data => WF_AUTOCANCEL,
		2313	signal => $signal,
		2314	prio => 0,
		2315	cb => sub {
		2316	cf::cleanup "SIG$signal";
		2317	},
		2318	);
		2319	}
		2320	}
		2321
		2322	sub emergency_save() {
		2323	my $freeze_guard = cf::freeze_mainloop;
		2324
		2325	warn "enter emergency perl save\n";
		2326
		2327	cf::sync_job {
		2328	# use a peculiar iteration method to avoid tripping on perl
		2329	# refcount bugs in for. also avoids problems with players
		2330	# and maps saved/destroyed asynchronously.
		2331	warn "begin emergency player save\n";
		2332	for my $login (keys %cf::PLAYER) {
		2333	my $pl = $cf::PLAYER{$login} or next;
		2334	$pl->valid or next;
		2335	$pl->save;
		2336	}
		2337	warn "end emergency player save\n";
		2338
		2339	warn "begin emergency map save\n";
		2340	for my $path (keys %cf::MAP) {
		2341	my $map = $cf::MAP{$path} or next;
		2342	$map->valid or next;
		2343	$map->save;
		2344	}
		2345	warn "end emergency map save\n";
		2346
		2347	warn "begin emergency database checkpoint\n";
		2348	BDB::db_env_txn_checkpoint $DB_ENV;
		2349	warn "end emergency database checkpoint\n";
		2350	};
		2351
		2352	warn "leave emergency perl save\n";
		2353	}
		2354
		2355	sub post_cleanup {
		2356	my ($make_core) = @_;
		2357
		2358	warn Carp::longmess "post_cleanup backtrace"
		2359	if $make_core;
		2360	}
1850		2361
1851	sub reload() {	2362	sub reload() {
1852	# can/must only be called in main	2363	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2364	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2365	warn "can only reload from main coroutine";
1855	return;	2366	return;
1856	}	2367	}
1857		2368
1858	warn "reloading...";	2369	warn "reloading...";
1859		2370
1860	local $FREEZE = 1;	2371	warn "entering sync_job";
		2372
		2373	cf::sync_job {
		2374	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2375	cf::emergency_save;
		2376	cf::write_runtime; # external watchdog should not bark
1862		2377
1863	eval {	2378	warn "syncing database to disk";
		2379	BDB::db_env_txn_checkpoint $DB_ENV;
		2380
1864	# if anything goes wrong in here, we should simply crash as we already saved	2381	# if anything goes wrong in here, we should simply crash as we already saved
1865		2382
1866	# cancel all watchers	2383	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2384	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2385	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2386	}
1870		2387
		2388	warn "flushing outstanding aio requests";
		2389	for (;;) {
		2390	BDB::flush;
		2391	IO::AIO::flush;
		2392	Coro::cede;
		2393	last unless IO::AIO::nreqs || BDB::nreqs;
		2394	warn "iterate...";
		2395	}
		2396
1871	# cancel all extension coros	2397	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2398	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2399	%EXT_CORO = ();
1874		2400
1875	# unload all extensions	2401	warn "removing commands";
1876	for (@exts) {	2402	%COMMAND = ();
		2403
		2404	warn "removing ext commands";
		2405	%EXTCMD = ();
		2406
		2407	warn "unloading/nuking all extensions";
		2408	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2409	warn "... unloading $pkg";
1878	unload_extension $_;	2410
		2411	if (my $cb = $pkg->can ("unload")) {
		2412	eval {
		2413	$cb->($pkg);
		2414	1
		2415	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2416	}
1880		2417
		2418	warn "... nuking $pkg";
		2419	Symbol::delete_package $pkg;
		2420	}
		2421
1881	# unload all modules loaded from $LIBDIR	2422	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2423	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2425
1885	warn "removing <$k>";	2426	warn "... unloading $k";
1886	delete $INC{$k};	2427	delete $INC{$k};
1887		2428
1888	$k =~ s/\.pm$//;	2429	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2430	$k =~ s/\//::/g;
1890		2431
…		…
1893	}	2434	}
1894		2435
1895	Symbol::delete_package $k;	2436	Symbol::delete_package $k;
1896	}	2437	}
1897		2438
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2439	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2440	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2442
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2443	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2444	delete $INC{"cf.pm"};
1911		2445
1912	# don't, removes xs symbols, too,	2446	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2447	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2448	#Symbol::delete_package __PACKAGE__;
1915		2449
1916	# reload cf.pm	2450	warn "unload completed, starting to reload now";
		2451
1917	warn "reloading cf.pm";	2452	warn "reloading cf.pm";
1918	require cf;	2453	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2455
1921	# load config and database again	2456	warn "loading config and database again";
1922	cf::cfg_load;	2457	cf::cfg_load;
1923	cf::db_load;
1924		2458
1925	# load extensions
1926	warn "load extensions";	2459	warn "loading extensions";
1927	cf::load_extensions;	2460	cf::load_extensions;
1928		2461
1929	# reattach attachments to objects	2462	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2463	_global_reattach;
1932	};	2464	warn "reattaching attachments to maps";
		2465	reattach $_ for values %MAP;
1933		2466
1934	if ($@) {	2467	warn "loading reloadable resources";
		2468	init_resources;
		2469
		2470	warn "leaving sync_job";
		2471
		2472	1
		2473	} or do {
1935	warn $@;	2474	warn $@;
1936	warn "error while reloading, exiting.";	2475	warn "error while reloading, exiting.";
1937	exit 1;	2476	exit 1;
1938	}	2477	};
1939		2478
1940	warn "reloaded successfully";	2479	warn "reloaded";
1941	};	2480	};
1942		2481
1943	#############################################################################	2482	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} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2483
1988	register_command "reload" => sub {	2484	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2485	my ($who, $arg) = @_;
1990		2486
1991	if ($who->flag (FLAG_WIZ)) {	2487	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2488	$who->message ("reloading server.");
		2489
		2490	# doing reload synchronously and two reloads happen back-to-back,
		2491	# coro crashes during coro_state_free->destroy here.
		2492
		2493	$RELOAD_WATCHER ||= Event->timer (
		2494	reentrant => 0,
		2495	after => 0,
		2496	data => WF_AUTOCANCEL,
		2497	cb => sub {
1993	reload;	2498	reload;
1994	$who->message ("end of reload.");	2499	undef $RELOAD_WATCHER;
		2500	},
		2501	);
1995	}	2502	}
1996	};	2503	};
1997		2504
1998	unshift @INC, $LIBDIR;	2505	unshift @INC, $LIBDIR;
		2506
		2507	my $bug_warning = 0;
1999		2508
2000	$TICK_WATCHER = Event->timer (	2509	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2510	reentrant => 0,
		2511	parked => 1,
2002	prio => 0,	2512	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2513	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2514	data => WF_AUTOCANCEL,
2005	cb => sub {	2515	cb => sub {
2006	unless ($FREEZE) {	2516	if ($Coro::current != $Coro::main) {
		2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2518	unless ++$bug_warning > 10;
		2519	return;
		2520	}
		2521
		2522	$NOW = Event::time;
		2523
2007	cf::server_tick; # one server iteration	2524	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2525	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2526	$NEXT_TICK += $TICK;
		2527
		2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2529	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2530	Coro::async_pool {
		2531	write_runtime
		2532	or warn "ERROR: unable to write runtime file: $!";
		2533	};
		2534	}
		2535
		2536	$WAIT_FOR_TICK->broadcast;
		2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2538
		2539	# my $AFTER = Event::time;
		2540	# warn $AFTER - $NOW;#d#
2012		2541
2013	# if we are delayed by four ticks or more, skip them all	2542	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2544
2016	$TICK_WATCHER->at ($NEXT_TICK);	2545	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2546	$TICK_WATCHER->start;
2018	},	2547	},
2019	);	2548	);
2020		2549
		2550	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2551	BDB::max_poll_time $TICK * 0.1;
2022		2552	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2553	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2554	fd => BDB::poll_fileno,
2025	poll => 'r',	2555	poll => 'r',
2026	prio => 5,	2556	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2557	data => WF_AUTOCANCEL,
2033	after => 0,	2558	cb => \&BDB::poll_cb,
2034	interval => 10,	2559	);
2035	cb => sub {	2560	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2561
2037	write_runtime	2562	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	2563	my $status;
		2564	my $current = $Coro::current;
		2565	(
		2566	sub {
		2567	$status = $!;
		2568	$current->ready; undef $current;
		2569	},
		2570	sub {
		2571	Coro::schedule while defined $current;
		2572	$! = $status;
		2573	},
		2574	)
		2575	};
		2576
		2577	unless ($DB_ENV) {
		2578	$DB_ENV = BDB::db_env_create;
		2579
		2580	cf::sync_job {
		2581	eval {
		2582	BDB::db_env_open
		2583	$DB_ENV,
		2584	$BDB_ENV_DIR,
		2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2587	0666;
		2588
		2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2590
		2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2592	$DB_ENV->set_lk_detect;
		2593	};
		2594
		2595	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	2596	};
2040	},	2597	}
2041	);	2598	}
		2599
		2600	{
		2601	IO::AIO::min_parallel 8;
		2602
		2603	undef $Coro::AIO::WATCHER;
		2604	IO::AIO::max_poll_time $TICK * 0.1;
		2605	$AIO_POLL_WATCHER = Event->io (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	fd => IO::AIO::poll_fileno,
		2609	poll => 'r',
		2610	prio => 6,
		2611	cb => \&IO::AIO::poll_cb,
		2612	);
		2613	}
		2614
		2615	END { cf::emergency_save }
2042		2616
2043	1	2617	1
2044		2618

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