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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 1.222 by root, Tue Mar 6 03:06:00 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 $pl->kick
		1060
		1061	Kicks a player out of the game. This destroys the connection.
		1062
		1063	=cut
		1064
		1065	sub kick {
		1066	my ($pl, $kicker) = @_;
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1069	$pl->killer ("kicked");
		1070	$pl->ns->destroy;
		1071	}
		1072
		1073	=item cf::player::list_logins
		1074
		1075	Returns am arrayref of all valid playernames in the system, can take a
		1076	while and may block, so not sync_job-capable, ever.
		1077
		1078	=cut
		1079
		1080	sub list_logins {
		1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1082	or return [];
		1083
		1084	my @logins;
		1085
		1086	for my $login (@$dirs) {
		1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1088	aio_read $fh, 0, 512, my $buf, 0 or next;
		1089	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1090
		1091	utf8::decode $login;
		1092	push @logins, $login;
		1093	}
		1094
		1095	\@logins
		1096	}
		1097
		1098	=item $player->maps
		1099
		1100	Returns an arrayref of map paths that are private for this
		1101	player. May block.
		1102
		1103	=cut
		1104
		1105	sub maps($) {
		1106	my ($pl) = @_;
		1107
		1108	$pl = ref $pl ? $pl->ob->name : $pl;
		1109
		1110	my $files = aio_readdir playerdir $pl
		1111	or return;
		1112
		1113	my @paths;
		1114
		1115	for (@$files) {
		1116	utf8::decode $_;
		1117	next if /\.(?:pl|pst)$/;
		1118	next unless /^$PATH_SEP/o;
		1119
		1120	push @paths, cf::map::normalise "~$pl/$_";
		1121	}
		1122
		1123	\@paths
1025	}	1124	}
1026		1125
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1126	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1127
1029	Sends an ext reply to the player.	1128	Sends an ext reply to the player.
1030		1129
1031	=cut	1130	=cut
1032		1131
1033	sub cf::player::ext_reply($$$%) {	1132	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1133	my ($self, $id, %msg) = @_;
1035		1134
1036	$msg{msgid} = $id;	1135	$msg{msgid} = $id;
1037		1136
1038	$self->send ("ext " . to_json \%msg);	1137	$self->send ("ext " . cf::to_json \%msg);
1039	}	1138	}
		1139
		1140	package cf;
1040		1141
1041	=back	1142	=back
1042		1143
1043		1144
1044	=head3 cf::map	1145	=head3 cf::map
…		…
1050	package cf::map;	1151	package cf::map;
1051		1152
1052	use Fcntl;	1153	use Fcntl;
1053	use Coro::AIO;	1154	use Coro::AIO;
1054		1155
		1156	use overload
		1157	'""' => \&as_string,
		1158	fallback => 1;
		1159
1055	our $MAX_RESET = 7200;	1160	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1161	our $DEFAULT_RESET = 3000;
1057		1162
1058	sub generate_random_map {	1163	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1164	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1165	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1166	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1170	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1171	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1174	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1175	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1176	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1177	(cf::region::find $rmp->{region}), $rmp->{custom}
		1178	)
		1179	}
		1180
		1181	=item cf::map->register ($regex, $prio)
		1182
		1183	Register a handler for the map path matching the given regex at the
		1184	givne priority (higher is better, built-in handlers have priority 0, the
		1185	default).
		1186
		1187	=cut
		1188
		1189	sub register {
		1190	my (undef, $regex, $prio) = @_;
		1191	my $pkg = caller;
		1192
		1193	no strict;
		1194	push @{"$pkg\::ISA"}, __PACKAGE__;
		1195
		1196	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1197	}
		1198
		1199	# also paths starting with '/'
		1200	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1201
		1202	sub thawer_merge {
		1203	my ($self, $merge) = @_;
		1204
		1205	# we have to keep some variables in memory intact
		1206	local $self->{path};
		1207	local $self->{load_path};
		1208	local $self->{deny_save};
		1209	local $self->{deny_reset};
		1210
		1211	$self->SUPER::thawer_merge ($merge);
		1212	}
		1213
		1214	sub normalise {
		1215	my ($path, $base) = @_;
		1216
		1217	$path = "$path"; # make sure its a string
		1218
		1219	$path =~ s/\.map$//;
		1220
		1221	# map plan:
		1222	#
		1223	# /! non-realised random map exit (special hack!)
		1224	# {... are special paths that are not being touched
		1225	# ?xxx/... are special absolute paths
		1226	# ?random/... random maps
		1227	# /... normal maps
		1228	# ~user/... per-player map of a specific user
		1229
		1230	$path =~ s/$PATH_SEP/\//go;
		1231
		1232	# treat it as relative path if it starts with
		1233	# something that looks reasonable
		1234	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1235	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1236
		1237	$base =~ s{[^/]+/?$}{};
		1238	$path = "$base/$path";
		1239	}
		1240
		1241	for ($path) {
		1242	redo if s{//}{/};
		1243	redo if s{/\.?/}{/};
		1244	redo if s{/[^/]+/\.\./}{/};
		1245	}
		1246
		1247	$path
		1248	}
		1249
		1250	sub new_from_path {
		1251	my (undef, $path, $base) = @_;
		1252
		1253	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1254
		1255	$path = normalise $path, $base;
		1256
		1257	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1258	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1259	my $self = bless cf::map::new, $pkg;
		1260	$self->{path} = $path; $self->path ($path);
		1261	$self->init; # pass $1 etc.
		1262	return $self;
		1263	}
		1264	}
		1265
		1266	Carp::carp "unable to resolve path '$path' (base '$base').";
		1267	()
		1268	}
		1269
		1270	sub init {
		1271	my ($self) = @_;
		1272
		1273	$self
		1274	}
		1275
		1276	sub as_string {
		1277	my ($self) = @_;
		1278
		1279	"$self->{path}"
		1280	}
		1281
		1282	# the displayed name, this is a one way mapping
		1283	sub visible_name {
		1284	&as_string
		1285	}
		1286
		1287	# the original (read-only) location
		1288	sub load_path {
		1289	my ($self) = @_;
		1290
		1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1292	}
		1293
		1294	# the temporary/swap location
		1295	sub save_path {
		1296	my ($self) = @_;
		1297
		1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1300	}
		1301
		1302	# the unique path, undef == no special unique path
		1303	sub uniq_path {
		1304	my ($self) = @_;
		1305
		1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1308	}
1076		1309
1077	# and all this just because we cannot iterate over	1310	# and all this just because we cannot iterate over
1078	# all maps in C++...	1311	# all maps in C++...
1079	sub change_all_map_light {	1312	sub change_all_map_light {
1080	my ($change) = @_;	1313	my ($change) = @_;
1081		1314
1082	$_->change_map_light ($change) for values %cf::MAP;	1315	$_->change_map_light ($change)
		1316	for grep $_->outdoor, values %cf::MAP;
1083	}	1317	}
1084		1318
		1319	sub unlink_save {
		1320	my ($self) = @_;
		1321
		1322	utf8::encode (my $save = $self->save_path);
		1323	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1325	}
		1326
1085	sub try_load_header($) {	1327	sub load_header_from($) {
1086	my ($path) = @_;	1328	my ($self, $path) = @_;
1087		1329
1088	utf8::encode $path;	1330	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1331	#aio_open $path, O_RDONLY, 0
		1332	# or return;
		1333
		1334	$self->_load_header ($path)
1090	or return;	1335	or return;
1091		1336
1092	my $map = cf::map::new	1337	$self->{load_path} = $path;
		1338
		1339	1
		1340	}
		1341
		1342	sub load_header_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->load_path)
		1346	}
		1347
		1348	sub load_header_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->load_header_from ($self->save_path)
		1352	}
		1353
		1354	sub prepare_temp {
		1355	my ($self) = @_;
		1356
		1357	$self->last_access ((delete $self->{last_access})
		1358	|| $cf::RUNTIME); #d#
		1359	# safety
		1360	$self->{instantiate_time} = $cf::RUNTIME
		1361	if $self->{instantiate_time} > $cf::RUNTIME;
		1362	}
		1363
		1364	sub prepare_orig {
		1365	my ($self) = @_;
		1366
		1367	$self->{load_original} = 1;
		1368	$self->{instantiate_time} = $cf::RUNTIME;
		1369	$self->last_access ($cf::RUNTIME);
		1370	$self->instantiate;
		1371	}
		1372
		1373	sub load_header {
		1374	my ($self) = @_;
		1375
		1376	if ($self->load_header_temp) {
		1377	$self->prepare_temp;
		1378	} else {
		1379	$self->load_header_orig
1093	or return;	1380	or return;
		1381	$self->prepare_orig;
		1382	}
1094		1383
1095	$map->load_header ($path)	1384	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1385	}
1102		1386
		1387	sub find;
1103	sub find_map {	1388	sub find {
1104	my ($path, $origin) = @_;	1389	my ($path, $origin) = @_;
1105		1390
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1391	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1392
		1393	cf::lock_wait "map_find:$path";
		1394
1111	$cf::MAP{$key} || do {	1395	$cf::MAP{$path} || do {
1112	# do it the slow way	1396	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1397	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;	1398	or return;
1127		1399
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);	1400	$map->{last_save} = $cf::RUNTIME;
1139		1401
1140	if ($map->should_reset) {	1402	$map->load_header
		1403	or return;
		1404
		1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1406	# doing this can freeze the server in a sync job, obviously
		1407	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1408	$map->reset;
1142	$map = find_map $path;	1409	undef $guard;
		1410	return find $path;
1143	}	1411	}
1144		1412
1145	$cf::MAP{$key} = $map	1413	$cf::MAP{$path} = $map
1146	}	1414	}
1147	}	1415	}
		1416
		1417	sub pre_load { }
		1418	sub post_load { }
1148		1419
1149	sub load {	1420	sub load {
1150	my ($self) = @_;	1421	my ($self) = @_;
1151		1422
		1423	local $self->{deny_reset} = 1; # loading can take a long time
		1424
		1425	my $path = $self->{path};
		1426	my $guard = cf::lock_acquire "map_load:$path";
		1427
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1428	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1429
1154	$self->in_memory (cf::MAP_LOADING);	1430	$self->in_memory (cf::MAP_LOADING);
1155		1431
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1432	$self->alloc;
		1433
		1434	$self->pre_load;
		1435
1159	$self->load_objects ($self->{load_path}, 1)	1436	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1437	or return;
1161		1438
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1440	if delete $self->{load_original};
1164		1441
1165	if (my $uniq = $path->uniq_path) {	1442	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1443	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1444	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1445	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1446	$self->_load_objects ($uniq, 0);
1170	}	1447	}
1171	}	1448	}
		1449
		1450	Coro::cede;
1172		1451
1173	# now do the right thing for maps	1452	# now do the right thing for maps
1174	$self->link_multipart_objects;	1453	$self->link_multipart_objects;
1175		1454
1176	if ($self->{path}->is_style_map) {	1455	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1456	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1457	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1458	$self->update_buttons;
		1459	Coro::cede;
1183	$self->set_darkness_map;	1460	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1461	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1462	unless $self->difficulty;
		1463	Coro::cede;
1186	$self->activate;	1464	$self->activate;
1187	}	1465	}
1188		1466
		1467	$self->post_load;
		1468
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1469	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1470	}
1191		1471
1192	sub load_map_sync {	1472	sub customise_for {
		1473	my ($self, $ob) = @_;
		1474
		1475	return find "~" . $ob->name . "/" . $self->{path}
		1476	if $self->per_player;
		1477
		1478	$self
		1479	}
		1480
		1481	# find and load all maps in the 3x3 area around a map
		1482	sub load_diag {
		1483	my ($map) = @_;
		1484
		1485	my @diag; # diagonal neighbours
		1486
		1487	for (0 .. 3) {
		1488	my $neigh = $map->tile_path ($_)
		1489	or next;
		1490	$neigh = find $neigh, $map
		1491	or next;
		1492	$neigh->load;
		1493
		1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1496	}
		1497
		1498	for (@diag) {
		1499	my $neigh = find @$_
		1500	or next;
		1501	$neigh->load;
		1502	}
		1503	}
		1504
		1505	sub find_sync {
1193	my ($path, $origin) = @_;	1506	my ($path, $origin) = @_;
1194		1507
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1508	cf::sync_job { find $path, $origin }
		1509	}
1196		1510
1197	cf::sync_job {	1511	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1512	my ($map) = @_;
1199	or return;	1513
		1514	cf::sync_job { $map->load };
		1515	}
		1516
		1517	our %MAP_PREFETCH;
		1518	our $MAP_PREFETCHER = undef;
		1519
		1520	sub find_async {
		1521	my ($path, $origin) = @_;
		1522
		1523	$path = normalise $path, $origin && $origin->{path};
		1524
		1525	if (my $map = $cf::MAP{$path}) {
		1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1527	}
		1528
		1529	undef $MAP_PREFETCH{$path};
		1530	$MAP_PREFETCHER ||= cf::async {
		1531	while (%MAP_PREFETCH) {
		1532	for my $path (keys %MAP_PREFETCH) {
		1533	my $map = find $path
		1534	or next;
1200	$map->load;	1535	$map->load;
1201	$map	1536
		1537	delete $MAP_PREFETCH{$path};
		1538	}
		1539	}
		1540	undef $MAP_PREFETCHER;
1202	}	1541	};
		1542	$MAP_PREFETCHER->prio (6);
		1543
		1544	()
1203	}	1545	}
1204		1546
1205	sub save {	1547	sub save {
1206	my ($self) = @_;	1548	my ($self) = @_;
1207		1549
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1550	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1551
1211	$self->{last_save} = $cf::RUNTIME;	1552	$self->{last_save} = $cf::RUNTIME;
1212		1553
1213	return unless $self->dirty;	1554	return unless $self->dirty;
1214		1555
		1556	my $save = $self->save_path; utf8::encode $save;
		1557	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1558
1215	$self->{load_path} = $save;	1559	$self->{load_path} = $save;
1216		1560
1217	return if $self->{deny_save};	1561	return if $self->{deny_save};
1218		1562
		1563	local $self->{last_access} = $self->last_access;#d#
		1564
		1565	cf::async {
		1566	$_->contr->save for $self->players;
		1567	};
		1568
1219	if ($uniq) {	1569	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1572	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1574	}
1225	}	1575	}
1226		1576
1227	sub swap_out {	1577	sub swap_out {
1228	my ($self) = @_;	1578	my ($self) = @_;
		1579
		1580	# save first because save cedes
		1581	$self->save;
		1582
		1583	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1584
1230	return if $self->players;	1585	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1586	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1587	return if $self->{deny_save};
1233		1588
1234	$self->save;
1235	$self->clear;	1589	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1590	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1591	}
1238		1592
1239	sub reset_at {	1593	sub reset_at {
1240	my ($self) = @_;	1594	my ($self) = @_;
1241		1595
1242	# TODO: safety, remove and allow resettable per-player maps	1596	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1598	return 1e99 if $self->{deny_reset};
1245		1599
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1602
1250	$time + $to	1603	$time + $to
1251	}	1604	}
1252		1605
1253	sub should_reset {	1606	sub should_reset {
1254	my ($self) = @_;	1607	my ($self) = @_;
1255		1608
1256	$self->reset_at <= $cf::RUNTIME	1609	$self->reset_at <= $cf::RUNTIME
1257	}	1610	}
1258		1611
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 {	1612	sub reset {
1268	my ($self) = @_;	1613	my ($self) = @_;
1269		1614
		1615	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1616
1270	return if $self->players;	1617	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1618	return if $self->isa ("ext::map_per_player");#d#
1272		1619
1273	warn "resetting map ", $self->path;#d#	1620	warn "resetting map ", $self->path;#d#
1274		1621
		1622	$self->in_memory (cf::MAP_SWAPPED);
		1623
		1624	# need to save uniques path
		1625	unless ($self->{deny_save}) {
		1626	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1627
		1628	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1629	if $uniq;
		1630	}
		1631
1275	delete $cf::MAP{$self->path};	1632	delete $cf::MAP{$self->path};
		1633
		1634	$self->clear;
1276		1635
1277	$_->clear_links_to ($self) for values %cf::MAP;	1636	$_->clear_links_to ($self) for values %cf::MAP;
1278		1637
1279	$self->unlink_save;	1638	$self->unlink_save;
1280	$self->destroy;	1639	$self->destroy;
1281	}	1640	}
1282		1641
1283	sub customise_for {	1642	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1643
1286	if ($map->per_player) {	1644	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1645	my ($self) = @_;
1288	}
1289		1646
1290	$map	1647	delete $cf::MAP{$self->path};
1291	}
1292		1648
1293	sub emergency_save {	1649	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1650
1296	warn "enter emergency map save\n";	1651	bless $self, "cf::map";
		1652	delete $self->{deny_reset};
		1653	$self->{deny_save} = 1;
		1654	$self->reset_timeout (1);
		1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1656
1298	cf::sync_job {	1657	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1658
1300	$_->save for values %cf::MAP;	1659	$self->reset; # polite request, might not happen
		1660	}
		1661
		1662	=item cf::map::unique_maps
		1663
		1664	Returns an arrayref of paths of all shared maps that have
		1665	instantiated unique items. May block.
		1666
		1667	=cut
		1668
		1669	sub unique_maps() {
		1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1671	or return;
		1672
		1673	my @paths;
		1674
		1675	for (@$files) {
		1676	utf8::decode $_;
		1677	next if /\.pst$/;
		1678	next unless /^$PATH_SEP/o;
		1679
		1680	push @paths, cf::map::normalise $_;
1301	};	1681	}
1302		1682
1303	warn "end emergency map save\n";	1683	\@paths
1304	}	1684	}
1305		1685
1306	package cf;	1686	package cf;
1307		1687
1308	=back	1688	=back
1309		1689
		1690	=head3 cf::object
		1691
		1692	=cut
		1693
		1694	package cf::object;
		1695
		1696	=over 4
		1697
		1698	=item $ob->inv_recursive
		1699
		1700	Returns the inventory of the object _and_ their inventories, recursively.
		1701
		1702	=cut
		1703
		1704	sub inv_recursive_;
		1705	sub inv_recursive_ {
		1706	map { $_, inv_recursive_ $_->inv } @_
		1707	}
		1708
		1709	sub inv_recursive {
		1710	inv_recursive_ inv $_[0]
		1711	}
		1712
		1713	package cf;
		1714
		1715	=back
1310		1716
1311	=head3 cf::object::player	1717	=head3 cf::object::player
1312		1718
1313	=over 4	1719	=over 4
1314		1720
…		…
1350	(ref $cf::CFG{"may_$access"}	1756	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1757	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1758	: $cf::CFG{"may_$access"})
1353	}	1759	}
1354		1760
		1761	=item $player_object->enter_link
		1762
		1763	Freezes the player and moves him/her to a special map (C<{link}>).
		1764
		1765	The player should be reasonably safe there for short amounts of time. You
		1766	I<MUST> call C<leave_link> as soon as possible, though.
		1767
		1768	Will never block.
		1769
		1770	=item $player_object->leave_link ($map, $x, $y)
		1771
		1772	Moves the player out of the special C<{link}> map onto the specified
		1773	map. If the map is not valid (or omitted), the player will be moved back
		1774	to the location he/she was before the call to C<enter_link>, or, if that
		1775	fails, to the emergency map position.
		1776
		1777	Might block.
		1778
		1779	=cut
		1780
		1781	sub link_map {
		1782	unless ($LINK_MAP) {
		1783	$LINK_MAP = cf::map::find "{link}"
		1784	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1785	$LINK_MAP->load;
		1786	}
		1787
		1788	$LINK_MAP
		1789	}
		1790
1355	sub cf::object::player::enter_link {	1791	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1792	my ($self) = @_;
1357		1793
1358	return if $self->map == $LINK_MAP;	1794	$self->deactivate_recursive;
1359		1795
		1796	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1797
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1799	if $self->map;
1362		1800
1363	$self->enter_map ($LINK_MAP, 20, 20);	1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1802	}
1366		1803
1367	sub cf::object::player::leave_link {	1804	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1805	my ($self, $map, $x, $y) = @_;
1369		1806
1370	my $link_pos = delete $self->{_link_pos};	1807	my $link_pos = delete $self->{_link_pos};
1371		1808
1372	unless ($map) {	1809	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1810	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1811	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1812	$map = cf::map::find $map;
1378		1813
1379	unless ($map) {	1814	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1815	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1816	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1817	or die "FATAL: cannot load emergency map\n";
1383	}	1818	}
1384	}	1819	}
1385		1820
1386	($x, $y) = (-1, -1)	1821	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1824	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1825	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1826	if $x <=0 && $y <= 0;
1392		1827
1393	$map->load;	1828	$map->load;
		1829	$map->load_diag;
1394		1830
		1831	return unless $self->contr->active;
1395	$self->activate_recursive;	1832	$self->activate_recursive;
		1833
		1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1835	$self->enter_map ($map, $x, $y);
1397	}	1836	}
1398		1837
		1838	cf::player->attach (
		1839	on_logout => sub {
		1840	my ($pl) = @_;
		1841
		1842	# abort map switching before logout
		1843	if ($pl->ob->{_link_pos}) {
		1844	cf::sync_job {
		1845	$pl->ob->leave_link
		1846	};
		1847	}
		1848	},
		1849	on_login => sub {
		1850	my ($pl) = @_;
		1851
		1852	# try to abort aborted map switching on player login :)
		1853	# should happen only on crashes
		1854	if ($pl->ob->{_link_pos}) {
		1855	$pl->ob->enter_link;
		1856	(async {
		1857	$pl->ob->reply (undef,
		1858	"There was an internal problem at your last logout, "
		1859	. "the server will try to bring you to your intended destination in a second.",
		1860	cf::NDI_RED);
		1861	# we need this sleep as the login has a concurrent enter_exit running
		1862	# and this sleep increases chances of the player not ending up in scorn
		1863	Coro::Timer::sleep 1;
		1864	$pl->ob->leave_link;
		1865	})->prio (2);
		1866	}
		1867	},
		1868	);
		1869
1399	=item $player_object->goto_map ($map, $x, $y)	1870	=item $player_object->goto ($path, $x, $y)
1400		1871
1401	=cut	1872	=cut
1402		1873
1403	sub cf::object::player::goto_map {	1874	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1875	my ($self, $path, $x, $y) = @_;
1405		1876
1406	$self->enter_link;	1877	$self->enter_link;
1407		1878
1408	(Coro::async {	1879	(async {
1409	$path = new cf::path $path;	1880	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1881	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1882	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1883	$map
		1884	} or
		1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1886
1417	$self->leave_link ($map, $x, $y);	1887	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1888	})->prio (1);
1419	}	1889	}
1420		1890
…		…
1424		1894
1425	sub parse_random_map_params {	1895	sub parse_random_map_params {
1426	my ($spec) = @_;	1896	my ($spec) = @_;
1427		1897
1428	my $rmp = { # defaults	1898	my $rmp = { # defaults
1429	xsize => 10,	1899	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1900	ysize => (cf::rndm 15, 40),
		1901	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1902	#layout => string,
1431	};	1903	};
1432		1904
1433	for (split /\n/, $spec) {	1905	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1906	my ($k, $v) = split /\s+/, $_, 2;
1435		1907
…		…
1439	$rmp	1911	$rmp
1440	}	1912	}
1441		1913
1442	sub prepare_random_map {	1914	sub prepare_random_map {
1443	my ($exit) = @_;	1915	my ($exit) = @_;
		1916
		1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1918
1445	# all this does is basically replace the /! path by	1919	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1920	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1921	# that depends on the exit object
1448		1922
1449	my $rmp = parse_random_map_params $exit->msg;	1923	my $rmp = parse_random_map_params $exit->msg;
1450		1924
1451	if ($exit->map) {	1925	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	1926	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	1927	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	1928	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	1929	$rmp->{origin_y} = $exit->y;
1456	}	1930	}
1457		1931
1458	$rmp->{random_seed} ||= $exit->random_seed;	1932	$rmp->{random_seed} ||= $exit->random_seed;
1459		1933
1460	my $data = cf::to_json $rmp;	1934	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1935	my $md5 = Digest::MD5::md5_hex $data;
		1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1937
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1939	aio_write $fh, 0, (length $data), $data, 0;
		1940	undef $fh;
		1941	aio_rename "$meta~", $meta;
1465		1942
1466	$exit->slaying ("?random/$md5");	1943	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1944	$exit->msg (undef);
1468	}	1945	}
1469	}	1946	}
…		…
1471	sub cf::object::player::enter_exit {	1948	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	1949	my ($self, $exit) = @_;
1473		1950
1474	return unless $self->type == cf::PLAYER;	1951	return unless $self->type == cf::PLAYER;
1475		1952
		1953	if ($exit->slaying eq "/!") {
		1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1955	cf::sync_job { prepare_random_map $exit };
		1956	}
		1957
		1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1959	my $hp = $exit->stats->hp;
		1960	my $sp = $exit->stats->sp;
		1961
1476	$self->enter_link;	1962	$self->enter_link;
1477		1963
1478	(Coro::async {	1964	(async {
		1965	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1966	unless (eval {
1480		1967	$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		1968
1487	1;	1969	1;
1488	}) {	1970	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1971	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1972	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1973	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1974	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1975
1494	warn "ERROR in enter_exit: $@";	1976	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1977	$self->leave_link;
1496	}	1978	}
…		…
1547	on_reply => sub {	2029	on_reply => sub {
1548	my ($ns, $msg) = @_;	2030	my ($ns, $msg) = @_;
1549		2031
1550	# this weird shuffling is so that direct followup queries	2032	# this weird shuffling is so that direct followup queries
1551	# get handled first	2033	# get handled first
1552	my $queue = delete $ns->{query_queue};	2034	my $queue = delete $ns->{query_queue}
		2035	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2036
1554	(shift @$queue)->[1]->($msg);	2037	(shift @$queue)->[1]->($msg);
		2038	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2039
1556	push @{ $ns->{query_queue} }, @$queue;	2040	push @{ $ns->{query_queue} }, @$queue;
1557		2041
1558	if (@{ $ns->{query_queue} } == @$queue) {	2042	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2043	if (@$queue) {
…		…
1563	}	2047	}
1564	}	2048	}
1565	},	2049	},
1566	);	2050	);
1567		2051
1568	=item $client->coro (\&cb)	2052	=item $client->async (\&cb)
1569		2053
1570	Create a new coroutine, running the specified callback. The coroutine will	2054	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2055	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2056	or loss of connection).
1573		2057
1574	=cut	2058	=cut
1575		2059
1576	sub cf::client::coro {	2060	sub cf::client::async {
1577	my ($self, $cb) = @_;	2061	my ($self, $cb) = @_;
1578		2062
1579	my $coro; $coro = async {	2063	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2064
1586	$coro->on_destroy (sub {	2065	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2066	delete $self->{_coro}{$coro+0};
1588	});	2067	});
1589		2068
…		…
1725	The parameter C<$family> should best start with the name of the extension	2204	The parameter C<$family> should best start with the name of the extension
1726	using it, it should be unique.	2205	using it, it should be unique.
1727		2206
1728	=over 4	2207	=over 4
1729		2208
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	2209	=item $value = cf::db_get $family => $key
1737		2210
1738	Returns a single value from the database	2211	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		2212
1745	=item cf::db_put $family => $key => $value	2213	=item cf::db_put $family => $key => $value
1746		2214
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2215	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		2216
1758	=cut	2217	=cut
1759		2218
1760	our $DB;	2219	our $DB;
1761		2220
1762	{	2221	sub db_init {
		2222	unless ($DB) {
		2223	$DB = BDB::db_create $DB_ENV;
		2224
		2225	cf::sync_job {
		2226	eval {
		2227	$DB->set_flags (BDB::CHKSUM);
		2228
		2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2231	cf::cleanup "db_open(db): $!" if $!;
		2232	};
		2233	cf::cleanup "db_open(db): $@" if $@;
		2234	};
		2235
1763	my $path = cf::localdir . "/database.pst";	2236	my $path = cf::localdir . "/database.pst";
		2237	if (stat $path) {
		2238	cf::sync_job {
		2239	my $pst = Storable::retrieve $path;
1764		2240
1765	sub db_load() {	2241	cf::db_put (board => data => $pst->{board});
1766	warn "loading database $path\n";#d# remove later	2242	cf::db_put (guildrules => data => $pst->{guildrules});
1767	$DB = stat $path ? Storable::retrieve $path : { };	2243	cf::db_put (rent => balance => $pst->{rent}{balance});
1768	}	2244	BDB::db_env_txn_checkpoint $DB_ENV;
1769		2245
1770	my $pid;	2246	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	}	2247	};
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	},	2248	}
1819	);	2249	}
		2250	}
		2251
		2252	sub db_get($$) {
		2253	my $key = "$_[0]/$_[1]";
		2254
		2255	cf::sync_job {
		2256	BDB::db_get $DB, undef, $key, my $data;
		2257
		2258	$! ? ()
		2259	: Compress::LZF::sthaw $data
		2260	}
		2261	}
		2262
		2263	sub db_put($$$) {
		2264	BDB::dbreq_pri 4;
		2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1820	}	2266	}
1821		2267
1822	#############################################################################	2268	#############################################################################
1823	# the server's main()	2269	# the server's init and main functions
		2270
		2271	sub init_resources {
		2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2273	or die "unable to load regions file\n";#d#
		2274	}
1824		2275
1825	sub cfg_load {	2276	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2277	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2278	or return;
1828		2279
1829	local $/;	2280	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2281	*CFG = YAML::Syck::Load <$fh>;
		2282
		2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2284
		2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2287
		2288	if (exists $CFG{mlockall}) {
		2289	eval {
		2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2291	and die "WARNING: m(un)lockall failed: $!\n";
		2292	};
		2293	warn $@ if $@;
		2294	}
		2295	}
		2296
		2297	sub init {
		2298	init_resources;
1831	}	2299	}
1832		2300
1833	sub main {	2301	sub main {
1834	# we must not ever block the main coroutine	2302	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2303	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2305	(async {
1838	Event::one_event;	2306	Event::one_event;
1839	})->();	2307	})->prio (Coro::PRIO_MAX);
1840	};	2308	};
1841		2309
1842	cfg_load;	2310	cfg_load;
1843	db_load;	2311	db_init;
1844	load_extensions;	2312	load_extensions;
		2313
		2314	$TICK_WATCHER->start;
1845	Event::loop;	2315	Event::loop;
1846	}	2316	}
1847		2317
1848	#############################################################################	2318	#############################################################################
1849	# initialisation	2319	# initialisation and cleanup
		2320
		2321	# install some emergency cleanup handlers
		2322	BEGIN {
		2323	for my $signal (qw(INT HUP TERM)) {
		2324	Event->signal (
		2325	reentrant => 0,
		2326	data => WF_AUTOCANCEL,
		2327	signal => $signal,
		2328	prio => 0,
		2329	cb => sub {
		2330	cf::cleanup "SIG$signal";
		2331	},
		2332	);
		2333	}
		2334	}
		2335
		2336	sub emergency_save() {
		2337	my $freeze_guard = cf::freeze_mainloop;
		2338
		2339	warn "enter emergency perl save\n";
		2340
		2341	cf::sync_job {
		2342	# use a peculiar iteration method to avoid tripping on perl
		2343	# refcount bugs in for. also avoids problems with players
		2344	# and maps saved/destroyed asynchronously.
		2345	warn "begin emergency player save\n";
		2346	for my $login (keys %cf::PLAYER) {
		2347	my $pl = $cf::PLAYER{$login} or next;
		2348	$pl->valid or next;
		2349	$pl->save;
		2350	}
		2351	warn "end emergency player save\n";
		2352
		2353	warn "begin emergency map save\n";
		2354	for my $path (keys %cf::MAP) {
		2355	my $map = $cf::MAP{$path} or next;
		2356	$map->valid or next;
		2357	$map->save;
		2358	}
		2359	warn "end emergency map save\n";
		2360
		2361	warn "begin emergency database checkpoint\n";
		2362	BDB::db_env_txn_checkpoint $DB_ENV;
		2363	warn "end emergency database checkpoint\n";
		2364	};
		2365
		2366	warn "leave emergency perl save\n";
		2367	}
		2368
		2369	sub post_cleanup {
		2370	my ($make_core) = @_;
		2371
		2372	warn Carp::longmess "post_cleanup backtrace"
		2373	if $make_core;
		2374	}
1850		2375
1851	sub reload() {	2376	sub reload() {
1852	# can/must only be called in main	2377	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2378	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2379	warn "can only reload from main coroutine";
1855	return;	2380	return;
1856	}	2381	}
1857		2382
1858	warn "reloading...";	2383	warn "reloading...";
1859		2384
1860	local $FREEZE = 1;	2385	warn "entering sync_job";
		2386
		2387	cf::sync_job {
		2388	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2389	cf::emergency_save;
		2390	cf::write_runtime; # external watchdog should not bark
1862		2391
1863	eval {	2392	warn "syncing database to disk";
		2393	BDB::db_env_txn_checkpoint $DB_ENV;
		2394
1864	# if anything goes wrong in here, we should simply crash as we already saved	2395	# if anything goes wrong in here, we should simply crash as we already saved
1865		2396
1866	# cancel all watchers	2397	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2398	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2399	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2400	}
1870		2401
		2402	warn "flushing outstanding aio requests";
		2403	for (;;) {
		2404	BDB::flush;
		2405	IO::AIO::flush;
		2406	Coro::cede;
		2407	last unless IO::AIO::nreqs || BDB::nreqs;
		2408	warn "iterate...";
		2409	}
		2410
1871	# cancel all extension coros	2411	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2412	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2413	%EXT_CORO = ();
1874		2414
1875	# unload all extensions	2415	warn "removing commands";
1876	for (@exts) {	2416	%COMMAND = ();
		2417
		2418	warn "removing ext commands";
		2419	%EXTCMD = ();
		2420
		2421	warn "unloading/nuking all extensions";
		2422	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2423	warn "... unloading $pkg";
1878	unload_extension $_;	2424
		2425	if (my $cb = $pkg->can ("unload")) {
		2426	eval {
		2427	$cb->($pkg);
		2428	1
		2429	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2430	}
1880		2431
		2432	warn "... nuking $pkg";
		2433	Symbol::delete_package $pkg;
		2434	}
		2435
1881	# unload all modules loaded from $LIBDIR	2436	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2437	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2439
1885	warn "removing <$k>";	2440	warn "... unloading $k";
1886	delete $INC{$k};	2441	delete $INC{$k};
1887		2442
1888	$k =~ s/\.pm$//;	2443	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2444	$k =~ s/\//::/g;
1890		2445
…		…
1893	}	2448	}
1894		2449
1895	Symbol::delete_package $k;	2450	Symbol::delete_package $k;
1896	}	2451	}
1897		2452
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2453	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2454	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2456
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2457	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2458	delete $INC{"cf.pm"};
1911		2459
1912	# don't, removes xs symbols, too,	2460	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2461	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2462	#Symbol::delete_package __PACKAGE__;
1915		2463
1916	# reload cf.pm	2464	warn "unload completed, starting to reload now";
		2465
1917	warn "reloading cf.pm";	2466	warn "reloading cf.pm";
1918	require cf;	2467	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2469
1921	# load config and database again	2470	warn "loading config and database again";
1922	cf::cfg_load;	2471	cf::cfg_load;
1923	cf::db_load;
1924		2472
1925	# load extensions
1926	warn "load extensions";	2473	warn "loading extensions";
1927	cf::load_extensions;	2474	cf::load_extensions;
1928		2475
1929	# reattach attachments to objects	2476	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2477	_global_reattach; # objects, sockets
1931	_global_reattach;	2478	warn "reattaching attachments to maps";
1932	};	2479	reattach $_ for values %MAP;
		2480	warn "reattaching attachments to players";
		2481	reattach $_ for values %PLAYER;
1933		2482
1934	if ($@) {	2483	warn "loading reloadable resources";
		2484	init_resources;
		2485
		2486	warn "leaving sync_job";
		2487
		2488	1
		2489	} or do {
1935	warn $@;	2490	warn $@;
1936	warn "error while reloading, exiting.";	2491	warn "error while reloading, exiting.";
1937	exit 1;	2492	exit 1;
1938	}	2493	};
1939		2494
1940	warn "reloaded successfully";	2495	warn "reloaded";
1941	};	2496	};
1942		2497
1943	#############################################################################	2498	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} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2499
1988	register_command "reload" => sub {	2500	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2501	my ($who, $arg) = @_;
1990		2502
1991	if ($who->flag (FLAG_WIZ)) {	2503	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2504	$who->message ("reloading server.");
		2505
		2506	# doing reload synchronously and two reloads happen back-to-back,
		2507	# coro crashes during coro_state_free->destroy here.
		2508
		2509	$RELOAD_WATCHER ||= Event->timer (
		2510	reentrant => 0,
		2511	after => 0,
		2512	data => WF_AUTOCANCEL,
		2513	cb => sub {
1993	reload;	2514	reload;
1994	$who->message ("end of reload.");	2515	undef $RELOAD_WATCHER;
		2516	},
		2517	);
1995	}	2518	}
1996	};	2519	};
1997		2520
1998	unshift @INC, $LIBDIR;	2521	unshift @INC, $LIBDIR;
		2522
		2523	my $bug_warning = 0;
1999		2524
2000	$TICK_WATCHER = Event->timer (	2525	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2526	reentrant => 0,
		2527	parked => 1,
2002	prio => 0,	2528	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2529	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2530	data => WF_AUTOCANCEL,
2005	cb => sub {	2531	cb => sub {
2006	unless ($FREEZE) {	2532	if ($Coro::current != $Coro::main) {
		2533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2534	unless ++$bug_warning > 10;
		2535	return;
		2536	}
		2537
		2538	$NOW = Event::time;
		2539
2007	cf::server_tick; # one server iteration	2540	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2541	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2542	$NEXT_TICK += $TICK;
		2543
		2544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2546	Coro::async_pool {
		2547	write_runtime
		2548	or warn "ERROR: unable to write runtime file: $!";
		2549	};
		2550	}
		2551
		2552	$WAIT_FOR_TICK->broadcast;
		2553	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2554
		2555	# my $AFTER = Event::time;
		2556	# warn $AFTER - $NOW;#d#
2012		2557
2013	# if we are delayed by four ticks or more, skip them all	2558	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2559	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2560
2016	$TICK_WATCHER->at ($NEXT_TICK);	2561	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2562	$TICK_WATCHER->start;
2018	},	2563	},
2019	);	2564	);
2020		2565
		2566	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2567	BDB::max_poll_time $TICK * 0.1;
2022		2568	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2569	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2570	fd => BDB::poll_fileno,
2025	poll => 'r',	2571	poll => 'r',
2026	prio => 5,	2572	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2573	data => WF_AUTOCANCEL,
2033	after => 0,	2574	cb => \&BDB::poll_cb,
2034	interval => 10,	2575	);
2035	cb => sub {	2576	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2577
2037	write_runtime	2578	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	2579	my $status;
		2580	my $current = $Coro::current;
		2581	(
		2582	sub {
		2583	$status = $!;
		2584	$current->ready; undef $current;
		2585	},
		2586	sub {
		2587	Coro::schedule while defined $current;
		2588	$! = $status;
		2589	},
		2590	)
		2591	};
		2592
		2593	unless ($DB_ENV) {
		2594	$DB_ENV = BDB::db_env_create;
		2595
		2596	cf::sync_job {
		2597	eval {
		2598	BDB::db_env_open
		2599	$DB_ENV,
		2600	$BDB_ENV_DIR,
		2601	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2602	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2603	0666;
		2604
		2605	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2606
		2607	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2608	$DB_ENV->set_lk_detect;
		2609	};
		2610
		2611	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	2612	};
2040	},	2613	}
2041	);	2614	}
		2615
		2616	{
		2617	IO::AIO::min_parallel 8;
		2618
		2619	undef $Coro::AIO::WATCHER;
		2620	IO::AIO::max_poll_time $TICK * 0.1;
		2621	$AIO_POLL_WATCHER = Event->io (
		2622	reentrant => 0,
		2623	data => WF_AUTOCANCEL,
		2624	fd => IO::AIO::poll_fileno,
		2625	poll => 'r',
		2626	prio => 6,
		2627	cb => \&IO::AIO::poll_cb,
		2628	);
		2629	}
		2630
		2631	END { cf::emergency_save }
2042		2632
2043	1	2633	1
2044		2634

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