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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.223 by root, Sun Mar 11 02:12:44 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
		48	our $RELOAD; # number of reloads so far
39	our @EVENT;	49	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	50	our $LIBDIR = datadir . "/ext";
41		51
42	our $TICK = MAX_TIME * 1e-6;	52	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	53	our $TICK_WATCHER;
		54	our $AIO_POLL_WATCHER;
		55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	56	our $NEXT_TICK;
45	our $NOW;	57	our $NOW;
		58	our $USE_FSYNC = 1; # use fsync to write maps - default off
		59
		60	our $BDB_POLL_WATCHER;
		61	our $DB_ENV;
46		62
47	our %CFG;	63	our %CFG;
48		64
49	our $UPTIME; $UPTIME ||= time;	65	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	66	our $RUNTIME;
51		67
		68	our %PLAYER; # all users
52	our %MAP; # all maps	69	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	70	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	71	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	72	our $BDB_ENV_DIR = cf::localdir . "/db";
		73
		74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		76
		77	# used to convert map paths into valid unix filenames by replacing / by ∕
		78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		79
58	binmode STDOUT;	80	binmode STDOUT;
59	binmode STDERR;	81	binmode STDERR;
60		82
61	# read virtual server time, if available	83	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	90	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	91	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	92	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	93	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	94	mkdir $RANDOM_MAPS;
		95	mkdir $BDB_ENV_DIR;
73		96
74	# a special map that is always available	97	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	98
		99	sub cf::map::normalise;
76		100
77	#############################################################################	101	#############################################################################
78		102
79	=head2 GLOBAL VARIABLES	103	=head2 GLOBAL VARIABLES
80		104
…		…
104		128
105	=item %cf::CFG	129	=item %cf::CFG
106		130
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	131	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	132	from wherever your confdir points to.
		133
		134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		135
		136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		138	processing has been done. Call C<< ->wait >> on them to maximise the
		139	window of cpu time available, or simply to synchronise to the server tick.
109		140
110	=back	141	=back
111		142
112	=cut	143	=cut
113		144
…		…
117	utf8::encode $msg;	148	utf8::encode $msg;
118		149
119	$msg .= "\n"	150	$msg .= "\n"
120	unless $msg =~ /\n$/;	151	unless $msg =~ /\n$/;
121		152
122	LOG llevError, "cfperl: $msg";	153	LOG llevError, $msg;
123	};	154	};
124	}	155	}
125		156
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		176
146	$Event::DIED = sub {	177	$Event::DIED = sub {
147	warn "error in event callback: @_";	178	warn "error in event callback: @_";
148	};	179	};
149		180
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	181	=head2 UTILITY FUNCTIONS
155		182
156	=over 4	183	=over 4
157		184
		185	=item dumpval $ref
		186
158	=cut	187	=cut
		188
		189	sub dumpval {
		190	eval {
		191	local $SIG{__DIE__};
		192	my $d;
		193	if (1) {
		194	$d = new Data::Dumper([$_[0]], ["*var"]);
		195	$d->Terse(1);
		196	$d->Indent(2);
		197	$d->Quotekeys(0);
		198	$d->Useqq(1);
		199	#$d->Bless(...);
		200	$d->Seen($_[1]) if @_ > 1;
		201	$d = $d->Dump();
		202	}
		203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		204	$d
		205	} || "[unable to dump $_[0]: '$@']";
		206	}
159		207
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	208	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		209
162	=item $ref = cf::from_json $json	210	=item $ref = cf::from_json $json
163		211
…		…
178		226
179	sub to_json($) {	227	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	228	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	229	JSON::Syck::Dump $_[0]
182	}	230	}
		231
		232	=item cf::lock_wait $string
		233
		234	Wait until the given lock is available. See cf::lock_acquire.
		235
		236	=item my $lock = cf::lock_acquire $string
		237
		238	Wait until the given lock is available and then acquires it and returns
		239	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		240	for example when the coroutine gets canceled), the lock is automatically
		241	returned.
		242
		243	Lock names should begin with a unique identifier (for example, cf::map::find
		244	uses map_find and cf::map::load uses map_load).
		245
		246	=cut
		247
		248	our %LOCK;
		249
		250	sub lock_wait($) {
		251	my ($key) = @_;
		252
		253	# wait for lock, if any
		254	while ($LOCK{$key}) {
		255	push @{ $LOCK{$key} }, $Coro::current;
		256	Coro::schedule;
		257	}
		258	}
		259
		260	sub lock_acquire($) {
		261	my ($key) = @_;
		262
		263	# wait, to be sure we are not locked
		264	lock_wait $key;
		265
		266	$LOCK{$key} = [];
		267
		268	Coro::guard {
		269	# wake up all waiters, to be on the safe side
		270	$_->ready for @{ delete $LOCK{$key} };
		271	}
		272	}
		273
		274	sub freeze_mainloop {
		275	return unless $TICK_WATCHER->is_active;
		276
		277	my $guard = Coro::guard {
		278	$TICK_WATCHER->start;
		279	};
		280	$TICK_WATCHER->stop;
		281	$guard
		282	}
		283
		284	=item cf::async { BLOCK }
		285
		286	Currently the same as Coro::async_pool, meaning you cannot use
		287	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		288	thing you are allowed to do is call C<prio> on it.
		289
		290	=cut
		291
		292	BEGIN { *async = \&Coro::async_pool }
183		293
184	=item cf::sync_job { BLOCK }	294	=item cf::sync_job { BLOCK }
185		295
186	The design of crossfire+ requires that the main coro ($Coro::main) is	296	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	297	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	305	=cut
196		306
197	sub sync_job(&) {	307	sub sync_job(&) {
198	my ($job) = @_;	308	my ($job) = @_;
199		309
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {	310	if ($Coro::current == $Coro::main) {
		311	# this is the main coro, too bad, we have to block
		312	# till the operation succeeds, freezing the server :/
		313
		314	# TODO: use suspend/resume instead
		315	# (but this is cancel-safe)
		316	my $freeze_guard = freeze_mainloop;
		317
		318	my $busy = 1;
		319	my @res;
		320
		321	(async {
		322	@res = eval { $job->() };
		323	warn $@ if $@;
		324	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	325	})->prio (Coro::PRIO_MAX);
		326
214	while ($busy) {	327	while ($busy) {
215	Coro::cede_notself;	328	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	329	}
		330
		331	wantarray ? @res : $res[0]
218	} else {	332	} else {
219	$coro->join;	333	# we are in another coroutine, how wonderful, everything just works
		334
		335	$job->()
220	}	336	}
221
222	wantarray ? @res : $res[0]
223	}	337	}
224		338
225	=item $coro = cf::coro { BLOCK }	339	=item $coro = cf::async_ext { BLOCK }
226		340
227	Creates and returns a new coro. This coro is automcatially being canceled	341	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	342	extension calling this is being unloaded.
229		343
230	=cut	344	=cut
231		345
232	sub coro(&) {	346	sub async_ext(&) {
233	my $cb = shift;	347	my $cb = shift;
234		348
235	my $coro; $coro = async {	349	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		350
242	$coro->on_destroy (sub {	351	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	352	delete $EXT_CORO{$coro+0};
244	});	353	});
245	$EXT_CORO{$coro+0} = $coro;	354	$EXT_CORO{$coro+0} = $coro;
246		355
247	$coro	356	$coro
248	}	357	}
249		358
250	sub write_runtime {	359	sub write_runtime {
		360	my $guard = cf::lock_acquire "write_runtime";
		361
251	my $runtime = cf::localdir . "/runtime";	362	my $runtime = cf::localdir . "/runtime";
252		363
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	365	or return;
255		366
256	my $value = $cf::RUNTIME;	367	my $value = $cf::RUNTIME + 90 + 10;
		368	# 10 is the runtime save interval, for a monotonic clock
		369	# 60 allows for the watchdog to kill the server.
		370
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	371	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	372	and return;
259		373
		374	# always fsync - this file is important
260	aio_fsync $fh	375	aio_fsync $fh
261	and return;	376	and return;
262		377
263	close $fh	378	close $fh
264	or return;	379	or return;
…		…
270	}	385	}
271		386
272	=back	387	=back
273		388
274	=cut	389	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	$self->{random} = cf::from_json $path;
287	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;
290
291	if (defined $1) {
292	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;
295	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}
298	} elsif ($path =~ /^\//) {
299	# already absolute
300	} else {
301	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");
303	}
304
305	for ($path) {
306	redo if s{/\.?/}{/};
307	redo if s{/[^/]+/\.\./}{/};
308	}
309	}
310
311	$self->{path} = $path;
312
313	$self
314	}
315
316	# the name / primary key / in-game path
317	sub as_string {
318	my ($self) = @_;
319
320	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"
322	: $self->{path}
323	}
324
325	# the displayed name, this is a one way mapping
326	sub visible_name {
327	my ($self) = @_;
328
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
330	: $self->as_string
331	}
332
333	# escape the /'s in the path
334	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;
337	$path
338	}
339
340	# the original (read-only) location
341	sub load_path {
342	my ($self) = @_;
343
344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
345	}
346
347	# the temporary/swap location
348	sub save_path {
349	my ($self) = @_;
350
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}
355
356	# the unique path, might be eq to save_path
357	sub uniq_path {
358	my ($self) = @_;
359
360	$self->{user_rel} || $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
363	}
364
365	# return random map parameters, or undef
366	sub random_map_params {
367	my ($self) = @_;
368
369	$self->{random}
370	}
371
372	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		390
379	#############################################################################	391	#############################################################################
380		392
381	=head2 ATTACHABLE OBJECTS	393	=head2 ATTACHABLE OBJECTS
382		394
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	521	our @CB_MAP = ();
510		522
511	my %attachment;	523	my %attachment;
512		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
513	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
515		533
516	use sort 'stable';	534	use sort 'stable';
517		535
…		…
688	# object support	706	# object support
689		707
690	sub reattach {	708	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	709	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		713
694	my $registry = $obj->registry;	714	my $registry = $obj->registry;
695		715
696	@$registry = ();	716	@$registry = ();
697		717
…		…
744	$filename, length $$rdata, scalar @$objs;	764	$filename, length $$rdata, scalar @$objs;
745		765
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	767	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	769	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	770	close $fh;
751		771
752	if (@$objs) {	772	if (@$objs) {
753	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
754	chmod SAVE_MODE, $fh;	774	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	775	my $data = Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	776	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	777	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	778	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	779	aio_rename "$filename.pst~", "$filename.pst";
760	}	780	}
761	} else {	781	} else {
762	aio_unlink "$filename.pst";	782	aio_unlink "$filename.pst";
…		…
790	or return;	810	or return;
791		811
792	unless (aio_stat "$filename.pst") {	812	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	813	(aio_load "$filename.pst", $av) >= 0
794	or return;	814	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	815	$av = eval { (Storable::thaw $av)->{objs} };
796	}	816	}
797		817
		818	warn sprintf "loading %s (%d)\n",
		819	$filename, length $data, scalar @{$av || []};#d#
798	return ($data, $av);	820	return ($data, $av);
799	}	821	}
800		822
801	#############################################################################	823	#############################################################################
802	# command handling &c	824	# command handling &c
…		…
827	=cut	849	=cut
828		850
829	sub register_extcmd {	851	sub register_extcmd {
830	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
831		853
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
836	}	855	}
837		856
838	cf::player->attach (	857	cf::player->attach (
839	on_command => sub {	858	on_command => sub {
840	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
853		872
854	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
855		874
856	if (ref $msg) {	875	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	879	}
861	}	880	}
862	} else {	881	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		884
866	cf::override;	885	cf::override;
867	},	886	},
868	);	887	);
869		888
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	889	sub load_extension {
877	my ($path) = @_;	890	my ($path) = @_;
878		891
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	893	my $base = $1;
881	my $pkg = $1;	894	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
884		897
885	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
886		899
887	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
888	or die "$path: $!";	901	or die "$path: $!";
889		902
890	my $source =	903	my $source =
891	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
894	. "\n};\n1";	907	. "\n};\n1";
895		908
896	eval $source	909	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	911	: "extension disabled.\n";
899		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	913	warn $@;
901	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
902		915	exit 1;
903	# no strict 'refs';	916	}
904	# @{"$pkg\::ISA"} = ext::;	917	die $@;
905
906	register $base, $pkg;
907	}
908
909	sub unload_extension {
910	my ($pkg) = @_;
911
912	warn "removing extension $pkg\n";
913
914	# remove hooks
915	#TODO
916	# for my $idx (0 .. $#PLUGIN_EVENT) {
917	# delete $hook[$idx]{$pkg};
918	# }	918	}
919		919
920	# remove commands	920	push @EXTS, $pkg;
921	for my $name (keys %COMMAND) {
922	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
923
924	if (@cb) {
925	$COMMAND{$name} = \@cb;
926	} else {
927	delete $COMMAND{$name};
928	}
929	}
930
931	# remove extcmds
932	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
933	delete $EXTCMD{$name};
934	}
935
936	if (my $cb = $pkg->can ("unload")) {
937	eval {
938	$cb->($pkg);
939	1
940	} or warn "$pkg unloaded, but with errors: $@";
941	}
942
943	Symbol::delete_package $pkg;
944	}	921	}
945		922
946	sub load_extensions {	923	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	925	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
953	}	930	}
954	}	931	}
955		932
956	#############################################################################	933	#############################################################################
957	# load/save/clean perl data associated with a map
958		934
959	*cf::mapsupport::on_clean = sub {	935	=head2 CORE EXTENSIONS
		936
		937	Functions and methods that extend core crossfire objects.
		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
		945	=head3 cf::player
		946
		947	=over 4
		948
		949	=item cf::player::find $login
		950
		951	Returns the given player object, loading it if necessary (might block).
		952
		953	=cut
		954
		955	sub playerdir($) {
		956	cf::localdir
		957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/$login.pl"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	my $pl = load_pl path $login
		990	or return;
		991	$cf::PLAYER{$login} = $pl
		992	}
		993	}
		994	}
		995
		996	sub save($) {
		997	my ($pl) = @_;
		998
		999	return if $pl->{deny_save};
		1000
		1001	my $path = path $pl;
		1002	my $guard = cf::lock_acquire "user_save:$path";
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	aio_mkdir playerdir $pl, 0770;
		1007	$pl->{last_save} = $cf::RUNTIME;
		1008
		1009	$pl->save_pl ($path);
		1010	Coro::cede;
		1011	}
		1012
		1013	sub new($) {
		1014	my ($login) = @_;
		1015
		1016	my $self = create;
		1017
		1018	$self->ob->name ($login);
		1019	$self->{deny_save} = 1;
		1020
		1021	$cf::PLAYER{$login} = $self;
		1022
		1023	$self
		1024	}
		1025
		1026	=item $pl->quit_character
		1027
		1028	Nukes the player without looking back. If logged in, the connection will
		1029	be destroyed. May block for a long time.
		1030
		1031	=cut
		1032
		1033	sub quit_character {
		1034	my ($pl) = @_;
		1035
		1036	my $name = $pl->ob->name;
		1037
		1038	$pl->{deny_save} = 1;
		1039	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1040
		1041	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1042	$pl->deactivate;
		1043	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1044	$pl->ns->destroy if $pl->ns;
		1045
		1046	my $path = playerdir $pl;
		1047	my $temp = "$path~$cf::RUNTIME~deleting~";
		1048	aio_rename $path, $temp;
		1049	delete $cf::PLAYER{$pl->ob->name};
		1050	$pl->destroy;
		1051
		1052	my $prefix = qr<^~\Q$name\E/>;
		1053
		1054	# nuke player maps
		1055	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1056
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item $pl->kick
		1061
		1062	Kicks a player out of the game. This destroys the connection.
		1063
		1064	=cut
		1065
		1066	sub kick {
		1067	my ($pl, $kicker) = @_;
		1068
		1069	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1070	$pl->killer ("kicked");
		1071	$pl->ns->destroy;
		1072	}
		1073
		1074	=item cf::player::list_logins
		1075
		1076	Returns am arrayref of all valid playernames in the system, can take a
		1077	while and may block, so not sync_job-capable, ever.
		1078
		1079	=cut
		1080
		1081	sub list_logins {
		1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1083	or return [];
		1084
		1085	my @logins;
		1086
		1087	for my $login (@$dirs) {
		1088	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1089	aio_read $fh, 0, 512, my $buf, 0 or next;
		1090	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1091
		1092	utf8::decode $login;
		1093	push @logins, $login;
		1094	}
		1095
		1096	\@logins
		1097	}
		1098
		1099	=item $player->maps
		1100
		1101	Returns an arrayref of map paths that are private for this
		1102	player. May block.
		1103
		1104	=cut
		1105
		1106	sub maps($) {
		1107	my ($pl) = @_;
		1108
		1109	$pl = ref $pl ? $pl->ob->name : $pl;
		1110
		1111	my $files = aio_readdir playerdir $pl
		1112	or return;
		1113
		1114	my @paths;
		1115
		1116	for (@$files) {
		1117	utf8::decode $_;
		1118	next if /\.(?:pl|pst)$/;
		1119	next unless /^$PATH_SEP/o;
		1120
		1121	push @paths, cf::map::normalise "~$pl/$_";
		1122	}
		1123
		1124	\@paths
		1125	}
		1126
		1127	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1128
		1129	Sends an ext reply to the player.
		1130
		1131	=cut
		1132
		1133	sub ext_reply($$$%) {
		1134	my ($self, $id, %msg) = @_;
		1135
		1136	$msg{msgid} = $id;
		1137
		1138	$self->send ("ext " . cf::to_json \%msg);
		1139	}
		1140
		1141	package cf;
		1142
		1143	=back
		1144
		1145
		1146	=head3 cf::map
		1147
		1148	=over 4
		1149
		1150	=cut
		1151
		1152	package cf::map;
		1153
		1154	use Fcntl;
		1155	use Coro::AIO;
		1156
		1157	use overload
		1158	'""' => \&as_string,
		1159	fallback => 1;
		1160
		1161	our $MAX_RESET = 3600;
		1162	our $DEFAULT_RESET = 3000;
		1163
		1164	sub generate_random_map {
		1165	my ($self, $rmp) = @_;
		1166	# mit "rum" bekleckern, nicht
		1167	$self->_create_random_map (
		1168	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1169	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1170	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1171	$rmp->{exit_on_final_map},
		1172	$rmp->{xsize}, $rmp->{ysize},
		1173	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1174	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1175	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1176	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1177	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1178	(cf::region::find $rmp->{region}), $rmp->{custom}
		1179	)
		1180	}
		1181
		1182	=item cf::map->register ($regex, $prio)
		1183
		1184	Register a handler for the map path matching the given regex at the
		1185	givne priority (higher is better, built-in handlers have priority 0, the
		1186	default).
		1187
		1188	=cut
		1189
		1190	sub register {
		1191	my (undef, $regex, $prio) = @_;
		1192	my $pkg = caller;
		1193
		1194	no strict;
		1195	push @{"$pkg\::ISA"}, __PACKAGE__;
		1196
		1197	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1198	}
		1199
		1200	# also paths starting with '/'
		1201	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1202
		1203	sub thawer_merge {
		1204	my ($self, $merge) = @_;
		1205
		1206	# we have to keep some variables in memory intact
		1207	local $self->{path};
		1208	local $self->{load_path};
		1209	local $self->{deny_save};
		1210	local $self->{deny_reset};
		1211
		1212	$self->SUPER::thawer_merge ($merge);
		1213	}
		1214
		1215	sub normalise {
		1216	my ($path, $base) = @_;
		1217
		1218	$path = "$path"; # make sure its a string
		1219
		1220	$path =~ s/\.map$//;
		1221
		1222	# map plan:
		1223	#
		1224	# /! non-realised random map exit (special hack!)
		1225	# {... are special paths that are not being touched
		1226	# ?xxx/... are special absolute paths
		1227	# ?random/... random maps
		1228	# /... normal maps
		1229	# ~user/... per-player map of a specific user
		1230
		1231	$path =~ s/$PATH_SEP/\//go;
		1232
		1233	# treat it as relative path if it starts with
		1234	# something that looks reasonable
		1235	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1236	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1237
		1238	$base =~ s{[^/]+/?$}{};
		1239	$path = "$base/$path";
		1240	}
		1241
		1242	for ($path) {
		1243	redo if s{//}{/};
		1244	redo if s{/\.?/}{/};
		1245	redo if s{/[^/]+/\.\./}{/};
		1246	}
		1247
		1248	$path
		1249	}
		1250
		1251	sub new_from_path {
		1252	my (undef, $path, $base) = @_;
		1253
		1254	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1255
		1256	$path = normalise $path, $base;
		1257
		1258	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1259	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1260	my $self = bless cf::map::new, $pkg;
		1261	$self->{path} = $path; $self->path ($path);
		1262	$self->init; # pass $1 etc.
		1263	return $self;
		1264	}
		1265	}
		1266
		1267	Carp::carp "unable to resolve path '$path' (base '$base').";
		1268	()
		1269	}
		1270
		1271	sub init {
		1272	my ($self) = @_;
		1273
		1274	$self
		1275	}
		1276
		1277	sub as_string {
		1278	my ($self) = @_;
		1279
		1280	"$self->{path}"
		1281	}
		1282
		1283	# the displayed name, this is a one way mapping
		1284	sub visible_name {
		1285	&as_string
		1286	}
		1287
		1288	# the original (read-only) location
		1289	sub load_path {
		1290	my ($self) = @_;
		1291
		1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1293	}
		1294
		1295	# the temporary/swap location
		1296	sub save_path {
		1297	my ($self) = @_;
		1298
		1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1301	}
		1302
		1303	# the unique path, undef == no special unique path
		1304	sub uniq_path {
		1305	my ($self) = @_;
		1306
		1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1309	}
		1310
		1311	# and all this just because we cannot iterate over
		1312	# all maps in C++...
		1313	sub change_all_map_light {
		1314	my ($change) = @_;
		1315
		1316	$_->change_map_light ($change)
		1317	for grep $_->outdoor, values %cf::MAP;
		1318	}
		1319
		1320	sub unlink_save {
		1321	my ($self) = @_;
		1322
		1323	utf8::encode (my $save = $self->save_path);
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1325	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1326	}
		1327
		1328	sub load_header_from($) {
		1329	my ($self, $path) = @_;
		1330
		1331	utf8::encode $path;
		1332	#aio_open $path, O_RDONLY, 0
		1333	# or return;
		1334
		1335	$self->_load_header ($path)
		1336	or return;
		1337
		1338	$self->{load_path} = $path;
		1339
		1340	1
		1341	}
		1342
		1343	sub load_header_orig {
		1344	my ($self) = @_;
		1345
		1346	$self->load_header_from ($self->load_path)
		1347	}
		1348
		1349	sub load_header_temp {
		1350	my ($self) = @_;
		1351
		1352	$self->load_header_from ($self->save_path)
		1353	}
		1354
		1355	sub prepare_temp {
		1356	my ($self) = @_;
		1357
		1358	$self->last_access ((delete $self->{last_access})
		1359	|| $cf::RUNTIME); #d#
		1360	# safety
		1361	$self->{instantiate_time} = $cf::RUNTIME
		1362	if $self->{instantiate_time} > $cf::RUNTIME;
		1363	}
		1364
		1365	sub prepare_orig {
		1366	my ($self) = @_;
		1367
		1368	$self->{load_original} = 1;
		1369	$self->{instantiate_time} = $cf::RUNTIME;
		1370	$self->last_access ($cf::RUNTIME);
		1371	$self->instantiate;
		1372	}
		1373
		1374	sub load_header {
		1375	my ($self) = @_;
		1376
		1377	if ($self->load_header_temp) {
		1378	$self->prepare_temp;
		1379	} else {
		1380	$self->load_header_orig
		1381	or return;
		1382	$self->prepare_orig;
		1383	}
		1384
		1385	1
		1386	}
		1387
		1388	sub find;
		1389	sub find {
		1390	my ($path, $origin) = @_;
		1391
		1392	$path = normalise $path, $origin && $origin->path;
		1393
		1394	cf::lock_wait "map_find:$path";
		1395
		1396	$cf::MAP{$path} || do {
		1397	my $guard = cf::lock_acquire "map_find:$path";
		1398	my $map = new_from_path cf::map $path
		1399	or return;
		1400
		1401	$map->{last_save} = $cf::RUNTIME;
		1402
		1403	$map->load_header
		1404	or return;
		1405
		1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1407	# doing this can freeze the server in a sync job, obviously
		1408	#$cf::WAIT_FOR_TICK->wait;
		1409	$map->reset;
		1410	undef $guard;
		1411	return find $path;
		1412	}
		1413
		1414	$cf::MAP{$path} = $map
		1415	}
		1416	}
		1417
		1418	sub pre_load { }
		1419	sub post_load { }
		1420
		1421	sub load {
		1422	my ($self) = @_;
		1423
		1424	local $self->{deny_reset} = 1; # loading can take a long time
		1425
		1426	my $path = $self->{path};
		1427	my $guard = cf::lock_acquire "map_load:$path";
		1428
		1429	return if $self->in_memory != cf::MAP_SWAPPED;
		1430
		1431	$self->in_memory (cf::MAP_LOADING);
		1432
		1433	$self->alloc;
		1434
		1435	$self->pre_load;
		1436
		1437	$self->_load_objects ($self->{load_path}, 1)
		1438	or return;
		1439
		1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1441	if delete $self->{load_original};
		1442
		1443	if (my $uniq = $self->uniq_path) {
		1444	utf8::encode $uniq;
		1445	if (aio_open $uniq, O_RDONLY, 0) {
		1446	$self->clear_unique_items;
		1447	$self->_load_objects ($uniq, 0);
		1448	}
		1449	}
		1450
		1451	Coro::cede;
		1452
		1453	# now do the right thing for maps
		1454	$self->link_multipart_objects;
		1455
		1456	unless ($self->{deny_activate}) {
		1457	$self->decay_objects;
		1458	$self->fix_auto_apply;
		1459	$self->update_buttons;
		1460	Coro::cede;
		1461	$self->set_darkness_map;
		1462	$self->difficulty ($self->estimate_difficulty)
		1463	unless $self->difficulty;
		1464	Coro::cede;
		1465	$self->activate;
		1466	}
		1467
		1468	$self->post_load;
		1469
		1470	$self->in_memory (cf::MAP_IN_MEMORY);
		1471	}
		1472
		1473	sub customise_for {
		1474	my ($self, $ob) = @_;
		1475
		1476	return find "~" . $ob->name . "/" . $self->{path}
		1477	if $self->per_player;
		1478
		1479	$self
		1480	}
		1481
		1482	# find and load all maps in the 3x3 area around a map
		1483	sub load_diag {
960	my ($map) = @_;	1484	my ($map) = @_;
961		1485
962	my $path = $map->tmpname;	1486	my @diag; # diagonal neighbours
963	defined $path or return;
964		1487
965	unlink "$path.pst";	1488	for (0 .. 3) {
966	};	1489	my $neigh = $map->tile_path ($_)
		1490	or next;
		1491	$neigh = find $neigh, $map
		1492	or next;
		1493	$neigh->load;
967		1494
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1495	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1496	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1497	}
969		1498
970	#############################################################################	1499	for (@diag) {
971	# load/save perl data associated with player->ob objects	1500	my $neigh = find @$_
972		1501	or next;
973	sub all_objects(@) {	1502	$neigh->load;
974	@_, map all_objects ($_->inv), @_	1503	}
975	}	1504	}
976		1505
977	# TODO: compatibility cruft, remove when no longer needed	1506	sub find_sync {
978	cf::player->attach (	1507	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		1508
982	for my $o (all_objects $pl->ob) {	1509	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1510	}
984	$o->set_ob_key_value ("_perl_data");
985		1511
986	%$o = %{ Storable::thaw pack "H*", $value };	1512	sub do_load_sync {
		1513	my ($map) = @_;
		1514
		1515	cf::sync_job { $map->load };
		1516	}
		1517
		1518	our %MAP_PREFETCH;
		1519	our $MAP_PREFETCHER = undef;
		1520
		1521	sub find_async {
		1522	my ($path, $origin) = @_;
		1523
		1524	$path = normalise $path, $origin && $origin->{path};
		1525
		1526	if (my $map = $cf::MAP{$path}) {
		1527	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1528	}
		1529
		1530	undef $MAP_PREFETCH{$path};
		1531	$MAP_PREFETCHER ||= cf::async {
		1532	while (%MAP_PREFETCH) {
		1533	for my $path (keys %MAP_PREFETCH) {
		1534	my $map = find $path
		1535	or next;
		1536	$map->load;
		1537
		1538	delete $MAP_PREFETCH{$path};
987	}	1539	}
988	}	1540	}
		1541	undef $MAP_PREFETCHER;
		1542	};
		1543	$MAP_PREFETCHER->prio (6);
		1544
		1545	()
		1546	}
		1547
		1548	sub save {
		1549	my ($self) = @_;
		1550
		1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1552
		1553	$self->{last_save} = $cf::RUNTIME;
		1554
		1555	return unless $self->dirty;
		1556
		1557	my $save = $self->save_path; utf8::encode $save;
		1558	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1559
		1560	$self->{load_path} = $save;
		1561
		1562	return if $self->{deny_save};
		1563
		1564	local $self->{last_access} = $self->last_access;#d#
		1565
		1566	cf::async {
		1567	$_->contr->save for $self->players;
		1568	};
		1569
		1570	if ($uniq) {
		1571	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1572	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1573	} else {
		1574	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	1575	}
990	);	1576	}
991		1577
992	#############################################################################	1578	sub swap_out {
		1579	my ($self) = @_;
993		1580
994	=head2 CORE EXTENSIONS	1581	# save first because save cedes
		1582	$self->save;
995		1583
996	Functions and methods that extend core crossfire objects.	1584	my $lock = cf::lock_acquire "map_data:" . $self->path;
997		1585
998	=head3 cf::player	1586	return if $self->players;
		1587	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1588	return if $self->{deny_save};
		1589
		1590	$self->clear;
		1591	$self->in_memory (cf::MAP_SWAPPED);
		1592	}
		1593
		1594	sub reset_at {
		1595	my ($self) = @_;
		1596
		1597	# TODO: safety, remove and allow resettable per-player maps
		1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1599	return 1e99 if $self->{deny_reset};
		1600
		1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1603
		1604	$time + $to
		1605	}
		1606
		1607	sub should_reset {
		1608	my ($self) = @_;
		1609
		1610	$self->reset_at <= $cf::RUNTIME
		1611	}
		1612
		1613	sub reset {
		1614	my ($self) = @_;
		1615
		1616	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1617
		1618	return if $self->players;
		1619	return if $self->isa ("ext::map_per_player");#d#
		1620
		1621	warn "resetting map ", $self->path;#d#
		1622
		1623	$self->in_memory (cf::MAP_SWAPPED);
		1624
		1625	# need to save uniques path
		1626	unless ($self->{deny_save}) {
		1627	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1628
		1629	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1630	if $uniq;
		1631	}
		1632
		1633	delete $cf::MAP{$self->path};
		1634
		1635	$self->clear;
		1636
		1637	$_->clear_links_to ($self) for values %cf::MAP;
		1638
		1639	$self->unlink_save;
		1640	$self->destroy;
		1641	}
		1642
		1643	my $nuke_counter = "aaaa";
		1644
		1645	sub nuke {
		1646	my ($self) = @_;
		1647
		1648	delete $cf::MAP{$self->path};
		1649
		1650	$self->unlink_save;
		1651
		1652	bless $self, "cf::map";
		1653	delete $self->{deny_reset};
		1654	$self->{deny_save} = 1;
		1655	$self->reset_timeout (1);
		1656	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1657
		1658	$cf::MAP{$self->path} = $self;
		1659
		1660	$self->reset; # polite request, might not happen
		1661	}
		1662
		1663	=item cf::map::unique_maps
		1664
		1665	Returns an arrayref of paths of all shared maps that have
		1666	instantiated unique items. May block.
		1667
		1668	=cut
		1669
		1670	sub unique_maps() {
		1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1672	or return;
		1673
		1674	my @paths;
		1675
		1676	for (@$files) {
		1677	utf8::decode $_;
		1678	next if /\.pst$/;
		1679	next unless /^$PATH_SEP/o;
		1680
		1681	push @paths, cf::map::normalise $_;
		1682	}
		1683
		1684	\@paths
		1685	}
		1686
		1687	package cf;
		1688
		1689	=back
		1690
		1691	=head3 cf::object
		1692
		1693	=cut
		1694
		1695	package cf::object;
999		1696
1000	=over 4	1697	=over 4
1001		1698
1002	=item cf::player::exists $login	1699	=item $ob->inv_recursive
1003		1700
1004	Returns true when the given account exists.	1701	Returns the inventory of the object _and_ their inventories, recursively.
1005		1702
1006	=cut	1703	=cut
1007		1704
1008	sub cf::player::exists($) {	1705	sub inv_recursive_;
1009	cf::player::find $_[0]	1706	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1707	map { $_, inv_recursive_ $_->inv } @_
1011	}	1708	}
1012		1709
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1710	sub inv_recursive {
1014		1711	inv_recursive_ inv $_[0]
1015	Sends an ext reply to the player.
1016
1017	=cut
1018
1019	sub cf::player::ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;
1021
1022	$msg{msgid} = $id;
1023
1024	$self->send ("ext " . to_json \%msg);
1025	}	1712	}
		1713
		1714	package cf;
1026		1715
1027	=back	1716	=back
1028		1717
1029	=head3 cf::object::player	1718	=head3 cf::object::player
1030		1719
…		…
1068	(ref $cf::CFG{"may_$access"}	1757	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1758	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1759	: $cf::CFG{"may_$access"})
1071	}	1760	}
1072		1761
		1762	=item $player_object->enter_link
		1763
		1764	Freezes the player and moves him/her to a special map (C<{link}>).
		1765
		1766	The player should be reasonably safe there for short amounts of time. You
		1767	I<MUST> call C<leave_link> as soon as possible, though.
		1768
		1769	Will never block.
		1770
		1771	=item $player_object->leave_link ($map, $x, $y)
		1772
		1773	Moves the player out of the special C<{link}> map onto the specified
		1774	map. If the map is not valid (or omitted), the player will be moved back
		1775	to the location he/she was before the call to C<enter_link>, or, if that
		1776	fails, to the emergency map position.
		1777
		1778	Might block.
		1779
		1780	=cut
		1781
		1782	sub link_map {
		1783	unless ($LINK_MAP) {
		1784	$LINK_MAP = cf::map::find "{link}"
		1785	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1786	$LINK_MAP->load;
		1787	}
		1788
		1789	$LINK_MAP
		1790	}
		1791
		1792	sub cf::object::player::enter_link {
		1793	my ($self) = @_;
		1794
		1795	$self->deactivate_recursive;
		1796
		1797	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1798
		1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1800	if $self->map;
		1801
		1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1803	}
		1804
		1805	sub cf::object::player::leave_link {
		1806	my ($self, $map, $x, $y) = @_;
		1807
		1808	my $link_pos = delete $self->{_link_pos};
		1809
		1810	unless ($map) {
		1811	# restore original map position
		1812	($map, $x, $y) = @{ $link_pos || [] };
		1813	$map = cf::map::find $map;
		1814
		1815	unless ($map) {
		1816	($map, $x, $y) = @$EMERGENCY_POSITION;
		1817	$map = cf::map::find $map
		1818	or die "FATAL: cannot load emergency map\n";
		1819	}
		1820	}
		1821
		1822	($x, $y) = (-1, -1)
		1823	unless (defined $x) && (defined $y);
		1824
		1825	# use -1 or undef as default coordinates, not 0, 0
		1826	($x, $y) = ($map->enter_x, $map->enter_y)
		1827	if $x <=0 && $y <= 0;
		1828
		1829	$map->load;
		1830	$map->load_diag;
		1831
		1832	return unless $self->contr->active;
		1833	$self->activate_recursive;
		1834
		1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1836	$self->enter_map ($map, $x, $y);
		1837	}
		1838
		1839	cf::player->attach (
		1840	on_logout => sub {
		1841	my ($pl) = @_;
		1842
		1843	# abort map switching before logout
		1844	if ($pl->ob->{_link_pos}) {
		1845	cf::sync_job {
		1846	$pl->ob->leave_link
		1847	};
		1848	}
		1849	},
		1850	on_login => sub {
		1851	my ($pl) = @_;
		1852
		1853	# try to abort aborted map switching on player login :)
		1854	# should happen only on crashes
		1855	if ($pl->ob->{_link_pos}) {
		1856	$pl->ob->enter_link;
		1857	(async {
		1858	$pl->ob->reply (undef,
		1859	"There was an internal problem at your last logout, "
		1860	. "the server will try to bring you to your intended destination in a second.",
		1861	cf::NDI_RED);
		1862	# we need this sleep as the login has a concurrent enter_exit running
		1863	# and this sleep increases chances of the player not ending up in scorn
		1864	Coro::Timer::sleep 1;
		1865	$pl->ob->leave_link;
		1866	})->prio (2);
		1867	}
		1868	},
		1869	);
		1870
		1871	=item $player_object->goto ($path, $x, $y)
		1872
		1873	=cut
		1874
		1875	sub cf::object::player::goto {
		1876	my ($self, $path, $x, $y) = @_;
		1877
		1878	$self->enter_link;
		1879
		1880	(async {
		1881	my $map = eval {
		1882	my $map = cf::map::find $path;
		1883	$map = $map->customise_for ($self) if $map;
		1884	$map
		1885	} or
		1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1887
		1888	$self->leave_link ($map, $x, $y);
		1889	})->prio (1);
		1890	}
		1891
		1892	=item $player_object->enter_exit ($exit_object)
		1893
		1894	=cut
		1895
		1896	sub parse_random_map_params {
		1897	my ($spec) = @_;
		1898
		1899	my $rmp = { # defaults
		1900	xsize => (cf::rndm 15, 40),
		1901	ysize => (cf::rndm 15, 40),
		1902	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1903	#layout => string,
		1904	};
		1905
		1906	for (split /\n/, $spec) {
		1907	my ($k, $v) = split /\s+/, $_, 2;
		1908
		1909	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1910	}
		1911
		1912	$rmp
		1913	}
		1914
		1915	sub prepare_random_map {
		1916	my ($exit) = @_;
		1917
		1918	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1919
		1920	# all this does is basically replace the /! path by
		1921	# a new random map path (?random/...) with a seed
		1922	# that depends on the exit object
		1923
		1924	my $rmp = parse_random_map_params $exit->msg;
		1925
		1926	if ($exit->map) {
		1927	$rmp->{region} = $exit->region->name;
		1928	$rmp->{origin_map} = $exit->map->path;
		1929	$rmp->{origin_x} = $exit->x;
		1930	$rmp->{origin_y} = $exit->y;
		1931	}
		1932
		1933	$rmp->{random_seed} ||= $exit->random_seed;
		1934
		1935	my $data = cf::to_json $rmp;
		1936	my $md5 = Digest::MD5::md5_hex $data;
		1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1938
		1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1940	aio_write $fh, 0, (length $data), $data, 0;
		1941	undef $fh;
		1942	aio_rename "$meta~", $meta;
		1943
		1944	$exit->slaying ("?random/$md5");
		1945	$exit->msg (undef);
		1946	}
		1947	}
		1948
		1949	sub cf::object::player::enter_exit {
		1950	my ($self, $exit) = @_;
		1951
		1952	return unless $self->type == cf::PLAYER;
		1953
		1954	if ($exit->slaying eq "/!") {
		1955	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1956	cf::sync_job { prepare_random_map $exit };
		1957	}
		1958
		1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1960	my $hp = $exit->stats->hp;
		1961	my $sp = $exit->stats->sp;
		1962
		1963	$self->enter_link;
		1964
		1965	(async {
		1966	$self->deactivate_recursive; # just to be sure
		1967	unless (eval {
		1968	$self->goto ($slaying, $hp, $sp);
		1969
		1970	1;
		1971	}) {
		1972	$self->message ("Something went wrong deep within the crossfire server. "
		1973	. "I'll try to bring you back to the map you were before. "
		1974	. "Please report this to the dungeon master!",
		1975	cf::NDI_UNIQUE | cf::NDI_RED);
		1976
		1977	warn "ERROR in enter_exit: $@";
		1978	$self->leave_link;
		1979	}
		1980	})->prio (1);
		1981	}
		1982
1073	=head3 cf::client	1983	=head3 cf::client
1074		1984
1075	=over 4	1985	=over 4
1076		1986
1077	=item $client->send_drawinfo ($text, $flags)	1987	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	2030	on_reply => sub {
1121	my ($ns, $msg) = @_;	2031	my ($ns, $msg) = @_;
1122		2032
1123	# this weird shuffling is so that direct followup queries	2033	# this weird shuffling is so that direct followup queries
1124	# get handled first	2034	# get handled first
1125	my $queue = delete $ns->{query_queue};	2035	my $queue = delete $ns->{query_queue}
		2036	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2037
1127	(shift @$queue)->[1]->($msg);	2038	(shift @$queue)->[1]->($msg);
		2039	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2040
1129	push @{ $ns->{query_queue} }, @$queue;	2041	push @{ $ns->{query_queue} }, @$queue;
1130		2042
1131	if (@{ $ns->{query_queue} } == @$queue) {	2043	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2044	if (@$queue) {
…		…
1136	}	2048	}
1137	}	2049	}
1138	},	2050	},
1139	);	2051	);
1140		2052
1141	=item $client->coro (\&cb)	2053	=item $client->async (\&cb)
1142		2054
1143	Create a new coroutine, running the specified callback. The coroutine will	2055	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	2056	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	2057	or loss of connection).
1146		2058
1147	=cut	2059	=cut
1148		2060
1149	sub cf::client::coro {	2061	sub cf::client::async {
1150	my ($self, $cb) = @_;	2062	my ($self, $cb) = @_;
1151		2063
1152	my $coro; $coro = async {	2064	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		2065
1159	$coro->on_destroy (sub {	2066	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	2067	delete $self->{_coro}{$coro+0};
1161	});	2068	});
1162		2069
…		…
1298	The parameter C<$family> should best start with the name of the extension	2205	The parameter C<$family> should best start with the name of the extension
1299	using it, it should be unique.	2206	using it, it should be unique.
1300		2207
1301	=over 4	2208	=over 4
1302		2209
1303	=item $hashref = cf::db_get $family
1304
1305	Return a hashref for use by the extension C<$family>, which can be
1306	modified. After modifications, you have to call C<cf::db_dirty> or
1307	C<cf::db_sync>.
1308
1309	=item $value = cf::db_get $family => $key	2210	=item $value = cf::db_get $family => $key
1310		2211
1311	Returns a single value from the database	2212	Returns a single value from the database.
1312
1313	=item cf::db_put $family => $hashref
1314
1315	Stores the given family hashref into the database. Updates are delayed, if
1316	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1317		2213
1318	=item cf::db_put $family => $key => $value	2214	=item cf::db_put $family => $key => $value
1319		2215
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you	2216	Stores the given C<$value> in the family.
1321	want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_dirty
1324
1325	Marks the database as dirty, to be updated at a later time.
1326
1327	=item cf::db_sync
1328
1329	Immediately write the database to disk I<if it is dirty>.
1330		2217
1331	=cut	2218	=cut
1332		2219
1333	our $DB;	2220	our $DB;
1334		2221
1335	{	2222	sub db_init {
		2223	unless ($DB) {
		2224	$DB = BDB::db_create $DB_ENV;
		2225
		2226	cf::sync_job {
		2227	eval {
		2228	$DB->set_flags (BDB::CHKSUM);
		2229
		2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2232	cf::cleanup "db_open(db): $!" if $!;
		2233	};
		2234	cf::cleanup "db_open(db): $@" if $@;
		2235	};
		2236
1336	my $path = cf::localdir . "/database.pst";	2237	my $path = cf::localdir . "/database.pst";
		2238	if (stat $path) {
		2239	cf::sync_job {
		2240	my $pst = Storable::retrieve $path;
1337		2241
1338	sub db_load() {	2242	cf::db_put (board => data => $pst->{board});
1339	warn "loading database $path\n";#d# remove later	2243	cf::db_put (guildrules => data => $pst->{guildrules});
1340	$DB = stat $path ? Storable::retrieve $path : { };	2244	cf::db_put (rent => balance => $pst->{rent}{balance});
1341	}	2245	BDB::db_env_txn_checkpoint $DB_ENV;
1342		2246
1343	my $pid;	2247	unlink $path;
1344
1345	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;
1352	cf::_exit 0 if defined $pid;
1353	}	2248	};
1354	}
1355
1356	my $dirty;
1357
1358	sub db_sync() {
1359	db_save if $dirty;
1360	undef $dirty;
1361	}
1362
1363	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1364	db_sync;
1365	});
1366
1367	sub db_dirty() {
1368	$dirty = 1;
1369	$idle->start;
1370	}
1371
1372	sub db_get($;$) {
1373	@_ >= 2
1374	? $DB->{$_[0]}{$_[1]}
1375	: ($DB->{$_[0]} ||= { })
1376	}
1377
1378	sub db_put($$;$) {
1379	if (@_ >= 3) {
1380	$DB->{$_[0]}{$_[1]} = $_[2];
1381	} else {
1382	$DB->{$_[0]} = $_[1];
1383	}
1384	db_dirty;
1385	}
1386
1387	cf::global->attach (
1388	prio => 10000,
1389	on_cleanup => sub {
1390	db_sync;
1391	},	2249	}
1392	);	2250	}
		2251	}
		2252
		2253	sub db_get($$) {
		2254	my $key = "$_[0]/$_[1]";
		2255
		2256	cf::sync_job {
		2257	BDB::db_get $DB, undef, $key, my $data;
		2258
		2259	$! ? ()
		2260	: Compress::LZF::sthaw $data
		2261	}
		2262	}
		2263
		2264	sub db_put($$$) {
		2265	BDB::dbreq_pri 4;
		2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1393	}	2267	}
1394		2268
1395	#############################################################################	2269	#############################################################################
1396	# the server's main()	2270	# the server's init and main functions
		2271
		2272	sub load_faces {
		2273	my $path = sprintf "%s/faces", cf::datadir;
		2274
		2275	warn "loading faces from $path\n";
		2276
		2277	my $faces;
		2278	0 < aio_load $path, $faces
		2279	or die "$path: $!";
		2280
		2281	Coro::cede;
		2282	$faces = Storable::thaw $faces;
		2283	Coro::cede;
		2284
		2285	while (my ($face, $info) = each %$faces) {
		2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2289	Coro::cede;
		2290	}
		2291
		2292	1
		2293	}
		2294
		2295	sub reload_resources {
		2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2297	or die "unable to load regions file\n";#d#
		2298	load_faces
		2299	or die "unable to load faces\n";#d#
		2300	}
		2301
		2302	sub init {
		2303	reload_resources;
		2304	}
1397		2305
1398	sub cfg_load {	2306	sub cfg_load {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2307	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2308	or return;
1401		2309
1402	local $/;	2310	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2311	*CFG = YAML::Syck::Load <$fh>;
		2312
		2313	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2314
		2315	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2316	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2317
		2318	if (exists $CFG{mlockall}) {
		2319	eval {
		2320	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2321	and die "WARNING: m(un)lockall failed: $!\n";
		2322	};
		2323	warn $@ if $@;
		2324	}
1404	}	2325	}
1405		2326
1406	sub main {	2327	sub main {
1407	# we must not ever block the main coroutine	2328	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2329	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2330	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	2331	(async {
1411	Event::one_event;	2332	Event::one_event;
1412	})->();	2333	})->prio (Coro::PRIO_MAX);
1413	};	2334	};
1414		2335
1415	cfg_load;	2336	cfg_load;
1416	db_load;	2337	db_init;
1417	load_extensions;	2338	load_extensions;
		2339
		2340	$TICK_WATCHER->start;
1418	Event::loop;	2341	Event::loop;
1419	}	2342	}
1420		2343
1421	#############################################################################	2344	#############################################################################
1422	# initialisation	2345	# initialisation and cleanup
1423		2346
		2347	# install some emergency cleanup handlers
		2348	BEGIN {
		2349	for my $signal (qw(INT HUP TERM)) {
		2350	Event->signal (
		2351	reentrant => 0,
		2352	data => WF_AUTOCANCEL,
		2353	signal => $signal,
		2354	prio => 0,
		2355	cb => sub {
		2356	cf::cleanup "SIG$signal";
		2357	},
		2358	);
		2359	}
		2360	}
		2361
		2362	sub emergency_save() {
		2363	my $freeze_guard = cf::freeze_mainloop;
		2364
		2365	warn "enter emergency perl save\n";
		2366
		2367	cf::sync_job {
		2368	# use a peculiar iteration method to avoid tripping on perl
		2369	# refcount bugs in for. also avoids problems with players
		2370	# and maps saved/destroyed asynchronously.
		2371	warn "begin emergency player save\n";
		2372	for my $login (keys %cf::PLAYER) {
		2373	my $pl = $cf::PLAYER{$login} or next;
		2374	$pl->valid or next;
		2375	$pl->save;
		2376	}
		2377	warn "end emergency player save\n";
		2378
		2379	warn "begin emergency map save\n";
		2380	for my $path (keys %cf::MAP) {
		2381	my $map = $cf::MAP{$path} or next;
		2382	$map->valid or next;
		2383	$map->save;
		2384	}
		2385	warn "end emergency map save\n";
		2386
		2387	warn "begin emergency database checkpoint\n";
		2388	BDB::db_env_txn_checkpoint $DB_ENV;
		2389	warn "end emergency database checkpoint\n";
		2390	};
		2391
		2392	warn "leave emergency perl save\n";
		2393	}
		2394
		2395	sub post_cleanup {
		2396	my ($make_core) = @_;
		2397
		2398	warn Carp::longmess "post_cleanup backtrace"
		2399	if $make_core;
		2400	}
		2401
1424	sub perl_reload() {	2402	sub reload() {
1425	# can/must only be called in main	2403	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2404	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2405	warn "can only reload from main coroutine";
1428	return;	2406	return;
1429	}	2407	}
1430		2408
1431	warn "reloading...";	2409	warn "reloading...";
1432		2410
1433	local $FREEZE = 1;	2411	warn "entering sync_job";
		2412
		2413	cf::sync_job {
		2414	cf::write_runtime; # external watchdog should not bark
1434	cf::emergency_save;	2415	cf::emergency_save;
		2416	cf::write_runtime; # external watchdog should not bark
1435		2417
1436	eval {	2418	warn "syncing database to disk";
		2419	BDB::db_env_txn_checkpoint $DB_ENV;
		2420
1437	# if anything goes wrong in here, we should simply crash as we already saved	2421	# if anything goes wrong in here, we should simply crash as we already saved
1438		2422
1439	# cancel all watchers	2423	warn "cancelling all WF_AUTOCANCEL watchers";
1440	for (Event::all_watchers) {	2424	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2425	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2426	}
1443		2427
		2428	warn "flushing outstanding aio requests";
		2429	for (;;) {
		2430	BDB::flush;
		2431	IO::AIO::flush;
		2432	Coro::cede;
		2433	last unless IO::AIO::nreqs || BDB::nreqs;
		2434	warn "iterate...";
		2435	}
		2436
		2437	++$RELOAD;
		2438
1444	# cancel all extension coros	2439	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	2440	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2441	%EXT_CORO = ();
1447		2442
1448	# unload all extensions	2443	warn "removing commands";
1449	for (@exts) {	2444	%COMMAND = ();
		2445
		2446	warn "removing ext commands";
		2447	%EXTCMD = ();
		2448
		2449	warn "unloading/nuking all extensions";
		2450	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2451	warn "... unloading $pkg";
1451	unload_extension $_;	2452
		2453	if (my $cb = $pkg->can ("unload")) {
		2454	eval {
		2455	$cb->($pkg);
		2456	1
		2457	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2458	}
1453		2459
		2460	warn "... nuking $pkg";
		2461	Symbol::delete_package $pkg;
		2462	}
		2463
1454	# unload all modules loaded from $LIBDIR	2464	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2465	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2466	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2467
1458	warn "removing <$k>";	2468	warn "... unloading $k";
1459	delete $INC{$k};	2469	delete $INC{$k};
1460		2470
1461	$k =~ s/\.pm$//;	2471	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	2472	$k =~ s/\//::/g;
1463		2473
…		…
1466	}	2476	}
1467		2477
1468	Symbol::delete_package $k;	2478	Symbol::delete_package $k;
1469	}	2479	}
1470		2480
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2481	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2482	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2484
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2485	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2486	delete $INC{"cf.pm"};
1484		2487
1485	# don't, removes xs symbols, too,	2488	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2489	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2490	#Symbol::delete_package __PACKAGE__;
1488		2491
1489	# reload cf.pm	2492	warn "unload completed, starting to reload now";
		2493
1490	warn "reloading cf.pm";	2494	warn "reloading cf.pm";
1491	require cf;	2495	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2496	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2497
1494	# load config and database again	2498	warn "loading config and database again";
1495	cf::cfg_load;	2499	cf::cfg_load;
1496	cf::db_load;
1497		2500
1498	# load extensions
1499	warn "load extensions";	2501	warn "loading extensions";
1500	cf::load_extensions;	2502	cf::load_extensions;
1501		2503
1502	# reattach attachments to objects	2504	warn "reattaching attachments to objects/players";
1503	warn "reattach";	2505	_global_reattach; # objects, sockets
1504	_global_reattach;	2506	warn "reattaching attachments to maps";
1505	};	2507	reattach $_ for values %MAP;
		2508	warn "reattaching attachments to players";
		2509	reattach $_ for values %PLAYER;
1506		2510
1507	if ($@) {	2511	warn "loading reloadable resources";
		2512	reload_resources;
		2513
		2514	warn "leaving sync_job";
		2515
		2516	1
		2517	} or do {
1508	warn $@;	2518	warn $@;
1509	warn "error while reloading, exiting.";	2519	warn "error while reloading, exiting.";
1510	exit 1;	2520	exit 1;
1511	}	2521	};
1512		2522
1513	warn "reloaded successfully";	2523	warn "reloaded";
1514	};	2524	};
1515		2525
1516	#############################################################################	2526	our $RELOAD_WATCHER; # used only during reload
1517		2527
1518	unless ($LINK_MAP) {
1519	$LINK_MAP = cf::map::new;
1520
1521	$LINK_MAP->width (41);
1522	$LINK_MAP->height (41);
1523	$LINK_MAP->alloc;
1524	$LINK_MAP->path ("{link}");
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2528	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2529	my ($who, $arg) = @_;
1533		2530
1534	if ($who->flag (FLAG_WIZ)) {	2531	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	2532	$who->message ("reloading server.");
		2533
		2534	# doing reload synchronously and two reloads happen back-to-back,
		2535	# coro crashes during coro_state_free->destroy here.
		2536
		2537	$RELOAD_WATCHER ||= Event->timer (
		2538	reentrant => 0,
		2539	after => 0,
		2540	data => WF_AUTOCANCEL,
		2541	cb => sub {
		2542	reload;
		2543	undef $RELOAD_WATCHER;
		2544	},
		2545	);
1538	}	2546	}
1539	};	2547	};
1540		2548
1541	unshift @INC, $LIBDIR;	2549	unshift @INC, $LIBDIR;
		2550
		2551	my $bug_warning = 0;
1542		2552
1543	$TICK_WATCHER = Event->timer (	2553	$TICK_WATCHER = Event->timer (
1544	reentrant => 0,	2554	reentrant => 0,
		2555	parked => 1,
1545	prio => 0,	2556	prio => 0,
1546	at => $NEXT_TICK || $TICK,	2557	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	2558	data => WF_AUTOCANCEL,
1548	cb => sub {	2559	cb => sub {
1549	unless ($FREEZE) {	2560	if ($Coro::current != $Coro::main) {
		2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2562	unless ++$bug_warning > 10;
		2563	return;
		2564	}
		2565
		2566	$NOW = Event::time;
		2567
1550	cf::server_tick; # one server iteration	2568	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2569	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2570	$NEXT_TICK += $TICK;
		2571
		2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2573	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2574	Coro::async_pool {
		2575	write_runtime
		2576	or warn "ERROR: unable to write runtime file: $!";
		2577	};
		2578	}
		2579
		2580	$WAIT_FOR_TICK->broadcast;
		2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2582
		2583	# my $AFTER = Event::time;
		2584	# warn $AFTER - $NOW;#d#
1555		2585
1556	# if we are delayed by four ticks or more, skip them all	2586	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2588
1559	$TICK_WATCHER->at ($NEXT_TICK);	2589	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;	2590	$TICK_WATCHER->start;
1561	},	2591	},
1562	);	2592	);
1563		2593
		2594	{
1564	IO::AIO::max_poll_time $TICK * 0.2;	2595	BDB::max_poll_time $TICK * 0.1;
1565		2596	$BDB_POLL_WATCHER = Event->io (
1566	Event->io (	2597	reentrant => 0,
1567	fd => IO::AIO::poll_fileno,	2598	fd => BDB::poll_fileno,
1568	poll => 'r',	2599	poll => 'r',
1569	prio => 5,	2600	prio => 0,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,	2601	data => WF_AUTOCANCEL,
1576	after => 0,	2602	cb => \&BDB::poll_cb,
1577	interval => 10,	2603	);
1578	cb => sub {	2604	BDB::min_parallel 8;
1579	(Coro::unblock_sub {	2605
1580	write_runtime	2606	BDB::set_sync_prepare {
1581	or warn "ERROR: unable to write runtime file: $!";	2607	my $status;
		2608	my $current = $Coro::current;
		2609	(
		2610	sub {
		2611	$status = $!;
		2612	$current->ready; undef $current;
		2613	},
		2614	sub {
		2615	Coro::schedule while defined $current;
		2616	$! = $status;
		2617	},
		2618	)
		2619	};
		2620
		2621	unless ($DB_ENV) {
		2622	$DB_ENV = BDB::db_env_create;
		2623
		2624	cf::sync_job {
		2625	eval {
		2626	BDB::db_env_open
		2627	$DB_ENV,
		2628	$BDB_ENV_DIR,
		2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2631	0666;
		2632
		2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2634
		2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2636	$DB_ENV->set_lk_detect;
		2637	};
		2638
		2639	cf::cleanup "db_env_open(db): $@" if $@;
1582	})->();	2640	};
1583	},	2641	}
1584	);	2642	}
		2643
		2644	{
		2645	IO::AIO::min_parallel 8;
		2646
		2647	undef $Coro::AIO::WATCHER;
		2648	IO::AIO::max_poll_time $TICK * 0.1;
		2649	$AIO_POLL_WATCHER = Event->io (
		2650	reentrant => 0,
		2651	data => WF_AUTOCANCEL,
		2652	fd => IO::AIO::poll_fileno,
		2653	poll => 'r',
		2654	prio => 6,
		2655	cb => \&IO::AIO::poll_cb,
		2656	);
		2657	}
		2658
		2659	END { cf::emergency_save }
1585		2660
1586	1	2661	1
1587		2662

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