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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 1.220 by root, Sat Feb 17 23:54:35 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=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	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
178		225
179	sub to_json($) {	226	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
182	}	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	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
183		292
184	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
185		294
186	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
187	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
195	=cut	304	=cut
196		305
197	sub sync_job(&) {	306	sub sync_job(&) {
198	my ($job) = @_;	307	my ($job) = @_;
199		308
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 == $Coro::main) {	309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
		313	# TODO: use suspend/resume instead
		314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
214	while ($busy) {	326	while ($busy) {
215	Coro::cede_notself;	327	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	328	}
		329
		330	wantarray ? @res : $res[0]
218	} else {	331	} else {
219	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
220	}	335	}
221
222	wantarray ? @res : $res[0]
223	}	336	}
224		337
225	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
226		339
227	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
229		342
230	=cut	343	=cut
231		344
232	sub coro(&) {	345	sub async_ext(&) {
233	my $cb = shift;	346	my $cb = shift;
234		347
235	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		349
242	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
244	});	352	});
245	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
246		354
247	$coro	355	$coro
248	}	356	}
249		357
250	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
251	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
252		362
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
254	or return;	364	or return;
255		365
256	my $value = $cf::RUNTIME;	366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;	371	and return;
259		372
		373	# always fsync - this file is important
260	aio_fsync $fh	374	aio_fsync $fh
261	and return;	375	and return;
262		376
263	close $fh	377	close $fh
264	or return;	378	or return;
…		…
270	}	384	}
271		385
272	=back	386	=back
273		387
274	=cut	388	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($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		389
379	#############################################################################	390	#############################################################################
380		391
381	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
382		393
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	520	our @CB_MAP = ();
510		521
511	my %attachment;	522	my %attachment;
512		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
513	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
515		532
516	use sort 'stable';	533	use sort 'stable';
517		534
…		…
688	# object support	705	# object support
689		706
690	sub reattach {	707	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		712
694	my $registry = $obj->registry;	713	my $registry = $obj->registry;
695		714
696	@$registry = ();	715	@$registry = ();
697		716
…		…
744	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
745		764
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	769	close $fh;
751		770
752	if (@$objs) {	771	if (@$objs) {
753	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) {
754	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	777	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
760	}	779	}
761	} else {	780	} else {
762	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
790	or return;	809	or return;
791		810
792	unless (aio_stat "$filename.pst") {	811	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	812	(aio_load "$filename.pst", $av) >= 0
794	or return;	813	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
796	}	815	}
797		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
798	return ($data, $av);	819	return ($data, $av);
799	}	820	}
800		821
801	#############################################################################	822	#############################################################################
802	# command handling &c	823	# command handling &c
…		…
827	=cut	848	=cut
828		849
829	sub register_extcmd {	850	sub register_extcmd {
830	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
831		852
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
836	}	854	}
837		855
838	cf::player->attach (	856	cf::player->attach (
839	on_command => sub {	857	on_command => sub {
840	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
853		871
854	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
855		873
856	if (ref $msg) {	874	if (ref $msg) {
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
859	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
860	}	878	}
861	}	879	}
862	} else {	880	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
865		883
866	cf::override;	884	cf::override;
867	},	885	},
868	);	886	);
869		887
870	sub register {
871	my ($base, $pkg) = @_;
872
873	#TODO
874	}
875
876	sub load_extension {	888	sub load_extension {
877	my ($path) = @_;	889	my ($path) = @_;
878		890
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
880	my $base = $1;	892	my $base = $1;
881	my $pkg = $1;	893	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
884		896
885	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
886		898
887	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
888	or die "$path: $!";	900	or die "$path: $!";
889		901
890	my $source =	902	my $source =
891	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
894	. "\n};\n1";	906	. "\n};\n1";
895		907
896	eval $source	908	unless (eval $source) {
897	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
898	: "extension disabled.\n";	910	: "extension disabled.\n";
899		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
900	push @exts, $pkg;	912	warn $@;
901	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
902		914	exit 1;
903	# no strict 'refs';	915	}
904	# @{"$pkg\::ISA"} = ext::;	916	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	# }	917	}
919		918
920	# remove commands	919	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	}	920	}
945		921
946	sub load_extensions {	922	sub load_extensions {
947	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	924	next unless -r $ext;
…		…
952	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
953	}	929	}
954	}	930	}
955		931
956	#############################################################################	932	#############################################################################
957	# load/save/clean perl data associated with a map
958		933
959	*cf::mapsupport::on_clean = sub {	934	=head2 CORE EXTENSIONS
		935
		936	Functions and methods that extend core crossfire objects.
		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
		944	=head3 cf::player
		945
		946	=over 4
		947
		948	=item cf::player::find $login
		949
		950	Returns the given player object, loading it if necessary (might block).
		951
		952	=cut
		953
		954	sub playerdir($) {
		955	cf::localdir
		956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item cf::player::list_logins
		1060
		1061	Returns am arrayref of all valid playernames in the system, can take a
		1062	while and may block, so not sync_job-capable, ever.
		1063
		1064	=cut
		1065
		1066	sub list_logins {
		1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1068	or return [];
		1069
		1070	my @logins;
		1071
		1072	for my $login (@$dirs) {
		1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1074	aio_read $fh, 0, 512, my $buf, 0 or next;
		1075	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1076
		1077	utf8::decode $login;
		1078	push @logins, $login;
		1079	}
		1080
		1081	\@logins
		1082	}
		1083
		1084	=item $player->maps
		1085
		1086	Returns an arrayref of map paths that are private for this
		1087	player. May block.
		1088
		1089	=cut
		1090
		1091	sub maps($) {
		1092	my ($pl) = @_;
		1093
		1094	$pl = ref $pl ? $pl->ob->name : $pl;
		1095
		1096	my $files = aio_readdir playerdir $pl
		1097	or return;
		1098
		1099	my @paths;
		1100
		1101	for (@$files) {
		1102	utf8::decode $_;
		1103	next if /\.(?:pl|pst)$/;
		1104	next unless /^$PATH_SEP/o;
		1105
		1106	push @paths, cf::map::normalise "~$pl/$_";
		1107	}
		1108
		1109	\@paths
		1110	}
		1111
		1112	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1113
		1114	Sends an ext reply to the player.
		1115
		1116	=cut
		1117
		1118	sub ext_reply($$$%) {
		1119	my ($self, $id, %msg) = @_;
		1120
		1121	$msg{msgid} = $id;
		1122
		1123	$self->send ("ext " . cf::to_json \%msg);
		1124	}
		1125
		1126	package cf;
		1127
		1128	=back
		1129
		1130
		1131	=head3 cf::map
		1132
		1133	=over 4
		1134
		1135	=cut
		1136
		1137	package cf::map;
		1138
		1139	use Fcntl;
		1140	use Coro::AIO;
		1141
		1142	use overload
		1143	'""' => \&as_string,
		1144	fallback => 1;
		1145
		1146	our $MAX_RESET = 3600;
		1147	our $DEFAULT_RESET = 3000;
		1148
		1149	sub generate_random_map {
		1150	my ($self, $rmp) = @_;
		1151	# mit "rum" bekleckern, nicht
		1152	$self->_create_random_map (
		1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1156	$rmp->{exit_on_final_map},
		1157	$rmp->{xsize}, $rmp->{ysize},
		1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1160	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1161	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1162	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1163	(cf::region::find $rmp->{region}), $rmp->{custom}
		1164	)
		1165	}
		1166
		1167	=item cf::map->register ($regex, $prio)
		1168
		1169	Register a handler for the map path matching the given regex at the
		1170	givne priority (higher is better, built-in handlers have priority 0, the
		1171	default).
		1172
		1173	=cut
		1174
		1175	sub register {
		1176	my (undef, $regex, $prio) = @_;
		1177	my $pkg = caller;
		1178
		1179	no strict;
		1180	push @{"$pkg\::ISA"}, __PACKAGE__;
		1181
		1182	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1183	}
		1184
		1185	# also paths starting with '/'
		1186	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1187
		1188	sub thawer_merge {
		1189	my ($self, $merge) = @_;
		1190
		1191	# we have to keep some variables in memory intact
		1192	local $self->{path};
		1193	local $self->{load_path};
		1194	local $self->{deny_save};
		1195	local $self->{deny_reset};
		1196
		1197	$self->SUPER::thawer_merge ($merge);
		1198	}
		1199
		1200	sub normalise {
		1201	my ($path, $base) = @_;
		1202
		1203	$path = "$path"; # make sure its a string
		1204
		1205	$path =~ s/\.map$//;
		1206
		1207	# map plan:
		1208	#
		1209	# /! non-realised random map exit (special hack!)
		1210	# {... are special paths that are not being touched
		1211	# ?xxx/... are special absolute paths
		1212	# ?random/... random maps
		1213	# /... normal maps
		1214	# ~user/... per-player map of a specific user
		1215
		1216	$path =~ s/$PATH_SEP/\//go;
		1217
		1218	# treat it as relative path if it starts with
		1219	# something that looks reasonable
		1220	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1221	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1222
		1223	$base =~ s{[^/]+/?$}{};
		1224	$path = "$base/$path";
		1225	}
		1226
		1227	for ($path) {
		1228	redo if s{//}{/};
		1229	redo if s{/\.?/}{/};
		1230	redo if s{/[^/]+/\.\./}{/};
		1231	}
		1232
		1233	$path
		1234	}
		1235
		1236	sub new_from_path {
		1237	my (undef, $path, $base) = @_;
		1238
		1239	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1240
		1241	$path = normalise $path, $base;
		1242
		1243	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1244	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1245	my $self = bless cf::map::new, $pkg;
		1246	$self->{path} = $path; $self->path ($path);
		1247	$self->init; # pass $1 etc.
		1248	return $self;
		1249	}
		1250	}
		1251
		1252	Carp::carp "unable to resolve path '$path' (base '$base').";
		1253	()
		1254	}
		1255
		1256	sub init {
		1257	my ($self) = @_;
		1258
		1259	$self
		1260	}
		1261
		1262	sub as_string {
		1263	my ($self) = @_;
		1264
		1265	"$self->{path}"
		1266	}
		1267
		1268	# the displayed name, this is a one way mapping
		1269	sub visible_name {
		1270	&as_string
		1271	}
		1272
		1273	# the original (read-only) location
		1274	sub load_path {
		1275	my ($self) = @_;
		1276
		1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1278	}
		1279
		1280	# the temporary/swap location
		1281	sub save_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1286	}
		1287
		1288	# the unique path, undef == no special unique path
		1289	sub uniq_path {
		1290	my ($self) = @_;
		1291
		1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1294	}
		1295
		1296	# and all this just because we cannot iterate over
		1297	# all maps in C++...
		1298	sub change_all_map_light {
		1299	my ($change) = @_;
		1300
		1301	$_->change_map_light ($change)
		1302	for grep $_->outdoor, values %cf::MAP;
		1303	}
		1304
		1305	sub unlink_save {
		1306	my ($self) = @_;
		1307
		1308	utf8::encode (my $save = $self->save_path);
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1311	}
		1312
		1313	sub load_header_from($) {
		1314	my ($self, $path) = @_;
		1315
		1316	utf8::encode $path;
		1317	#aio_open $path, O_RDONLY, 0
		1318	# or return;
		1319
		1320	$self->_load_header ($path)
		1321	or return;
		1322
		1323	$self->{load_path} = $path;
		1324
		1325	1
		1326	}
		1327
		1328	sub load_header_orig {
		1329	my ($self) = @_;
		1330
		1331	$self->load_header_from ($self->load_path)
		1332	}
		1333
		1334	sub load_header_temp {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->save_path)
		1338	}
		1339
		1340	sub prepare_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->last_access ((delete $self->{last_access})
		1344	|| $cf::RUNTIME); #d#
		1345	# safety
		1346	$self->{instantiate_time} = $cf::RUNTIME
		1347	if $self->{instantiate_time} > $cf::RUNTIME;
		1348	}
		1349
		1350	sub prepare_orig {
		1351	my ($self) = @_;
		1352
		1353	$self->{load_original} = 1;
		1354	$self->{instantiate_time} = $cf::RUNTIME;
		1355	$self->last_access ($cf::RUNTIME);
		1356	$self->instantiate;
		1357	}
		1358
		1359	sub load_header {
		1360	my ($self) = @_;
		1361
		1362	if ($self->load_header_temp) {
		1363	$self->prepare_temp;
		1364	} else {
		1365	$self->load_header_orig
		1366	or return;
		1367	$self->prepare_orig;
		1368	}
		1369
		1370	1
		1371	}
		1372
		1373	sub find;
		1374	sub find {
		1375	my ($path, $origin) = @_;
		1376
		1377	$path = normalise $path, $origin && $origin->path;
		1378
		1379	cf::lock_wait "map_find:$path";
		1380
		1381	$cf::MAP{$path} || do {
		1382	my $guard = cf::lock_acquire "map_find:$path";
		1383	my $map = new_from_path cf::map $path
		1384	or return;
		1385
		1386	$map->{last_save} = $cf::RUNTIME;
		1387
		1388	$map->load_header
		1389	or return;
		1390
		1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1392	# doing this can freeze the server in a sync job, obviously
		1393	#$cf::WAIT_FOR_TICK->wait;
		1394	$map->reset;
		1395	undef $guard;
		1396	return find $path;
		1397	}
		1398
		1399	$cf::MAP{$path} = $map
		1400	}
		1401	}
		1402
		1403	sub pre_load { }
		1404	sub post_load { }
		1405
		1406	sub load {
		1407	my ($self) = @_;
		1408
		1409	local $self->{deny_reset} = 1; # loading can take a long time
		1410
		1411	my $path = $self->{path};
		1412	my $guard = cf::lock_acquire "map_load:$path";
		1413
		1414	return if $self->in_memory != cf::MAP_SWAPPED;
		1415
		1416	$self->in_memory (cf::MAP_LOADING);
		1417
		1418	$self->alloc;
		1419
		1420	$self->pre_load;
		1421
		1422	$self->_load_objects ($self->{load_path}, 1)
		1423	or return;
		1424
		1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1426	if delete $self->{load_original};
		1427
		1428	if (my $uniq = $self->uniq_path) {
		1429	utf8::encode $uniq;
		1430	if (aio_open $uniq, O_RDONLY, 0) {
		1431	$self->clear_unique_items;
		1432	$self->_load_objects ($uniq, 0);
		1433	}
		1434	}
		1435
		1436	Coro::cede;
		1437
		1438	# now do the right thing for maps
		1439	$self->link_multipart_objects;
		1440
		1441	unless ($self->{deny_activate}) {
		1442	$self->decay_objects;
		1443	$self->fix_auto_apply;
		1444	$self->update_buttons;
		1445	Coro::cede;
		1446	$self->set_darkness_map;
		1447	$self->difficulty ($self->estimate_difficulty)
		1448	unless $self->difficulty;
		1449	Coro::cede;
		1450	$self->activate;
		1451	}
		1452
		1453	$self->post_load;
		1454
		1455	$self->in_memory (cf::MAP_IN_MEMORY);
		1456	}
		1457
		1458	sub customise_for {
		1459	my ($self, $ob) = @_;
		1460
		1461	return find "~" . $ob->name . "/" . $self->{path}
		1462	if $self->per_player;
		1463
		1464	$self
		1465	}
		1466
		1467	# find and load all maps in the 3x3 area around a map
		1468	sub load_diag {
960	my ($map) = @_;	1469	my ($map) = @_;
961		1470
962	my $path = $map->tmpname;	1471	my @diag; # diagonal neighbours
963	defined $path or return;
964		1472
965	unlink "$path.pst";	1473	for (0 .. 3) {
966	};	1474	my $neigh = $map->tile_path ($_)
		1475	or next;
		1476	$neigh = find $neigh, $map
		1477	or next;
		1478	$neigh->load;
967		1479
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1482	}
969		1483
970	#############################################################################	1484	for (@diag) {
971	# load/save perl data associated with player->ob objects	1485	my $neigh = find @$_
972		1486	or next;
973	sub all_objects(@) {	1487	$neigh->load;
974	@_, map all_objects ($_->inv), @_	1488	}
975	}	1489	}
976		1490
977	# TODO: compatibility cruft, remove when no longer needed	1491	sub find_sync {
978	cf::player->attach (	1492	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		1493
982	for my $o (all_objects $pl->ob) {	1494	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1495	}
984	$o->set_ob_key_value ("_perl_data");
985		1496
986	%$o = %{ Storable::thaw pack "H*", $value };	1497	sub do_load_sync {
		1498	my ($map) = @_;
		1499
		1500	cf::sync_job { $map->load };
		1501	}
		1502
		1503	our %MAP_PREFETCH;
		1504	our $MAP_PREFETCHER = undef;
		1505
		1506	sub find_async {
		1507	my ($path, $origin) = @_;
		1508
		1509	$path = normalise $path, $origin && $origin->{path};
		1510
		1511	if (my $map = $cf::MAP{$path}) {
		1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1513	}
		1514
		1515	undef $MAP_PREFETCH{$path};
		1516	$MAP_PREFETCHER ||= cf::async {
		1517	while (%MAP_PREFETCH) {
		1518	for my $path (keys %MAP_PREFETCH) {
		1519	my $map = find $path
		1520	or next;
		1521	$map->load;
		1522
		1523	delete $MAP_PREFETCH{$path};
987	}	1524	}
988	}	1525	}
		1526	undef $MAP_PREFETCHER;
		1527	};
		1528	$MAP_PREFETCHER->prio (6);
		1529
		1530	()
		1531	}
		1532
		1533	sub save {
		1534	my ($self) = @_;
		1535
		1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1537
		1538	$self->{last_save} = $cf::RUNTIME;
		1539
		1540	return unless $self->dirty;
		1541
		1542	my $save = $self->save_path; utf8::encode $save;
		1543	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1544
		1545	$self->{load_path} = $save;
		1546
		1547	return if $self->{deny_save};
		1548
		1549	local $self->{last_access} = $self->last_access;#d#
		1550
		1551	cf::async {
		1552	$_->contr->save for $self->players;
		1553	};
		1554
		1555	if ($uniq) {
		1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1558	} else {
		1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	1560	}
990	);	1561	}
991		1562
992	#############################################################################	1563	sub swap_out {
		1564	my ($self) = @_;
993		1565
994	=head2 CORE EXTENSIONS	1566	# save first because save cedes
		1567	$self->save;
995		1568
996	Functions and methods that extend core crossfire objects.	1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
997		1570
998	=head3 cf::player	1571	return if $self->players;
		1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1573	return if $self->{deny_save};
		1574
		1575	$self->clear;
		1576	$self->in_memory (cf::MAP_SWAPPED);
		1577	}
		1578
		1579	sub reset_at {
		1580	my ($self) = @_;
		1581
		1582	# TODO: safety, remove and allow resettable per-player maps
		1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1584	return 1e99 if $self->{deny_reset};
		1585
		1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1588
		1589	$time + $to
		1590	}
		1591
		1592	sub should_reset {
		1593	my ($self) = @_;
		1594
		1595	$self->reset_at <= $cf::RUNTIME
		1596	}
		1597
		1598	sub reset {
		1599	my ($self) = @_;
		1600
		1601	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1602
		1603	return if $self->players;
		1604	return if $self->isa ("ext::map_per_player");#d#
		1605
		1606	warn "resetting map ", $self->path;#d#
		1607
		1608	$self->in_memory (cf::MAP_SWAPPED);
		1609
		1610	# need to save uniques path
		1611	unless ($self->{deny_save}) {
		1612	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1613
		1614	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1615	if $uniq;
		1616	}
		1617
		1618	delete $cf::MAP{$self->path};
		1619
		1620	$self->clear;
		1621
		1622	$_->clear_links_to ($self) for values %cf::MAP;
		1623
		1624	$self->unlink_save;
		1625	$self->destroy;
		1626	}
		1627
		1628	my $nuke_counter = "aaaa";
		1629
		1630	sub nuke {
		1631	my ($self) = @_;
		1632
		1633	delete $cf::MAP{$self->path};
		1634
		1635	$self->unlink_save;
		1636
		1637	bless $self, "cf::map";
		1638	delete $self->{deny_reset};
		1639	$self->{deny_save} = 1;
		1640	$self->reset_timeout (1);
		1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1642
		1643	$cf::MAP{$self->path} = $self;
		1644
		1645	$self->reset; # polite request, might not happen
		1646	}
		1647
		1648	=item cf::map::unique_maps
		1649
		1650	Returns an arrayref of paths of all shared maps that have
		1651	instantiated unique items. May block.
		1652
		1653	=cut
		1654
		1655	sub unique_maps() {
		1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1657	or return;
		1658
		1659	my @paths;
		1660
		1661	for (@$files) {
		1662	utf8::decode $_;
		1663	next if /\.pst$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise $_;
		1667	}
		1668
		1669	\@paths
		1670	}
		1671
		1672	package cf;
		1673
		1674	=back
		1675
		1676	=head3 cf::object
		1677
		1678	=cut
		1679
		1680	package cf::object;
999		1681
1000	=over 4	1682	=over 4
1001		1683
1002	=item cf::player::exists $login	1684	=item $ob->inv_recursive
1003		1685
1004	Returns true when the given account exists.	1686	Returns the inventory of the object _and_ their inventories, recursively.
1005		1687
1006	=cut	1688	=cut
1007		1689
1008	sub cf::player::exists($) {	1690	sub inv_recursive_;
1009	cf::player::find $_[0]	1691	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1692	map { $_, inv_recursive_ $_->inv } @_
1011	}	1693	}
1012		1694
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	1695	sub inv_recursive {
1014		1696	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	}	1697	}
		1698
		1699	package cf;
1026		1700
1027	=back	1701	=back
1028		1702
1029	=head3 cf::object::player	1703	=head3 cf::object::player
1030		1704
…		…
1068	(ref $cf::CFG{"may_$access"}	1742	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1743	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	1744	: $cf::CFG{"may_$access"})
1071	}	1745	}
1072		1746
		1747	=item $player_object->enter_link
		1748
		1749	Freezes the player and moves him/her to a special map (C<{link}>).
		1750
		1751	The player should be reasonably safe there for short amounts of time. You
		1752	I<MUST> call C<leave_link> as soon as possible, though.
		1753
		1754	Will never block.
		1755
		1756	=item $player_object->leave_link ($map, $x, $y)
		1757
		1758	Moves the player out of the special C<{link}> map onto the specified
		1759	map. If the map is not valid (or omitted), the player will be moved back
		1760	to the location he/she was before the call to C<enter_link>, or, if that
		1761	fails, to the emergency map position.
		1762
		1763	Might block.
		1764
		1765	=cut
		1766
		1767	sub link_map {
		1768	unless ($LINK_MAP) {
		1769	$LINK_MAP = cf::map::find "{link}"
		1770	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1771	$LINK_MAP->load;
		1772	}
		1773
		1774	$LINK_MAP
		1775	}
		1776
		1777	sub cf::object::player::enter_link {
		1778	my ($self) = @_;
		1779
		1780	$self->deactivate_recursive;
		1781
		1782	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1783
		1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1785	if $self->map;
		1786
		1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1788	}
		1789
		1790	sub cf::object::player::leave_link {
		1791	my ($self, $map, $x, $y) = @_;
		1792
		1793	my $link_pos = delete $self->{_link_pos};
		1794
		1795	unless ($map) {
		1796	# restore original map position
		1797	($map, $x, $y) = @{ $link_pos || [] };
		1798	$map = cf::map::find $map;
		1799
		1800	unless ($map) {
		1801	($map, $x, $y) = @$EMERGENCY_POSITION;
		1802	$map = cf::map::find $map
		1803	or die "FATAL: cannot load emergency map\n";
		1804	}
		1805	}
		1806
		1807	($x, $y) = (-1, -1)
		1808	unless (defined $x) && (defined $y);
		1809
		1810	# use -1 or undef as default coordinates, not 0, 0
		1811	($x, $y) = ($map->enter_x, $map->enter_y)
		1812	if $x <=0 && $y <= 0;
		1813
		1814	$map->load;
		1815	$map->load_diag;
		1816
		1817	return unless $self->contr->active;
		1818	$self->activate_recursive;
		1819
		1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		1821	$self->enter_map ($map, $x, $y);
		1822	}
		1823
		1824	cf::player->attach (
		1825	on_logout => sub {
		1826	my ($pl) = @_;
		1827
		1828	# abort map switching before logout
		1829	if ($pl->ob->{_link_pos}) {
		1830	cf::sync_job {
		1831	$pl->ob->leave_link
		1832	};
		1833	}
		1834	},
		1835	on_login => sub {
		1836	my ($pl) = @_;
		1837
		1838	# try to abort aborted map switching on player login :)
		1839	# should happen only on crashes
		1840	if ($pl->ob->{_link_pos}) {
		1841	$pl->ob->enter_link;
		1842	(async {
		1843	$pl->ob->reply (undef,
		1844	"There was an internal problem at your last logout, "
		1845	. "the server will try to bring you to your intended destination in a second.",
		1846	cf::NDI_RED);
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	Coro::Timer::sleep 1;
		1850	$pl->ob->leave_link;
		1851	})->prio (2);
		1852	}
		1853	},
		1854	);
		1855
		1856	=item $player_object->goto ($path, $x, $y)
		1857
		1858	=cut
		1859
		1860	sub cf::object::player::goto {
		1861	my ($self, $path, $x, $y) = @_;
		1862
		1863	$self->enter_link;
		1864
		1865	(async {
		1866	my $map = eval {
		1867	my $map = cf::map::find $path;
		1868	$map = $map->customise_for ($self) if $map;
		1869	$map
		1870	} or
		1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1872
		1873	$self->leave_link ($map, $x, $y);
		1874	})->prio (1);
		1875	}
		1876
		1877	=item $player_object->enter_exit ($exit_object)
		1878
		1879	=cut
		1880
		1881	sub parse_random_map_params {
		1882	my ($spec) = @_;
		1883
		1884	my $rmp = { # defaults
		1885	xsize => (cf::rndm 15, 40),
		1886	ysize => (cf::rndm 15, 40),
		1887	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1888	#layout => string,
		1889	};
		1890
		1891	for (split /\n/, $spec) {
		1892	my ($k, $v) = split /\s+/, $_, 2;
		1893
		1894	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1895	}
		1896
		1897	$rmp
		1898	}
		1899
		1900	sub prepare_random_map {
		1901	my ($exit) = @_;
		1902
		1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1904
		1905	# all this does is basically replace the /! path by
		1906	# a new random map path (?random/...) with a seed
		1907	# that depends on the exit object
		1908
		1909	my $rmp = parse_random_map_params $exit->msg;
		1910
		1911	if ($exit->map) {
		1912	$rmp->{region} = $exit->region->name;
		1913	$rmp->{origin_map} = $exit->map->path;
		1914	$rmp->{origin_x} = $exit->x;
		1915	$rmp->{origin_y} = $exit->y;
		1916	}
		1917
		1918	$rmp->{random_seed} ||= $exit->random_seed;
		1919
		1920	my $data = cf::to_json $rmp;
		1921	my $md5 = Digest::MD5::md5_hex $data;
		1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1923
		1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1925	aio_write $fh, 0, (length $data), $data, 0;
		1926	undef $fh;
		1927	aio_rename "$meta~", $meta;
		1928
		1929	$exit->slaying ("?random/$md5");
		1930	$exit->msg (undef);
		1931	}
		1932	}
		1933
		1934	sub cf::object::player::enter_exit {
		1935	my ($self, $exit) = @_;
		1936
		1937	return unless $self->type == cf::PLAYER;
		1938
		1939	if ($exit->slaying eq "/!") {
		1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1941	cf::sync_job { prepare_random_map $exit };
		1942	}
		1943
		1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1945	my $hp = $exit->stats->hp;
		1946	my $sp = $exit->stats->sp;
		1947
		1948	$self->enter_link;
		1949
		1950	(async {
		1951	$self->deactivate_recursive; # just to be sure
		1952	unless (eval {
		1953	$self->goto ($slaying, $hp, $sp);
		1954
		1955	1;
		1956	}) {
		1957	$self->message ("Something went wrong deep within the crossfire server. "
		1958	. "I'll try to bring you back to the map you were before. "
		1959	. "Please report this to the dungeon master!",
		1960	cf::NDI_UNIQUE | cf::NDI_RED);
		1961
		1962	warn "ERROR in enter_exit: $@";
		1963	$self->leave_link;
		1964	}
		1965	})->prio (1);
		1966	}
		1967
1073	=head3 cf::client	1968	=head3 cf::client
1074		1969
1075	=over 4	1970	=over 4
1076		1971
1077	=item $client->send_drawinfo ($text, $flags)	1972	=item $client->send_drawinfo ($text, $flags)
…		…
1120	on_reply => sub {	2015	on_reply => sub {
1121	my ($ns, $msg) = @_;	2016	my ($ns, $msg) = @_;
1122		2017
1123	# this weird shuffling is so that direct followup queries	2018	# this weird shuffling is so that direct followup queries
1124	# get handled first	2019	# get handled first
1125	my $queue = delete $ns->{query_queue};	2020	my $queue = delete $ns->{query_queue}
		2021	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2022
1127	(shift @$queue)->[1]->($msg);	2023	(shift @$queue)->[1]->($msg);
		2024	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2025
1129	push @{ $ns->{query_queue} }, @$queue;	2026	push @{ $ns->{query_queue} }, @$queue;
1130		2027
1131	if (@{ $ns->{query_queue} } == @$queue) {	2028	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2029	if (@$queue) {
…		…
1136	}	2033	}
1137	}	2034	}
1138	},	2035	},
1139	);	2036	);
1140		2037
1141	=item $client->coro (\&cb)	2038	=item $client->async (\&cb)
1142		2039
1143	Create a new coroutine, running the specified callback. The coroutine will	2040	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	2041	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	2042	or loss of connection).
1146		2043
1147	=cut	2044	=cut
1148		2045
1149	sub cf::client::coro {	2046	sub cf::client::async {
1150	my ($self, $cb) = @_;	2047	my ($self, $cb) = @_;
1151		2048
1152	my $coro; $coro = async {	2049	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		2050
1159	$coro->on_destroy (sub {	2051	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	2052	delete $self->{_coro}{$coro+0};
1161	});	2053	});
1162		2054
…		…
1298	The parameter C<$family> should best start with the name of the extension	2190	The parameter C<$family> should best start with the name of the extension
1299	using it, it should be unique.	2191	using it, it should be unique.
1300		2192
1301	=over 4	2193	=over 4
1302		2194
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	2195	=item $value = cf::db_get $family => $key
1310		2196
1311	Returns a single value from the database	2197	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		2198
1318	=item cf::db_put $family => $key => $value	2199	=item cf::db_put $family => $key => $value
1319		2200
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you	2201	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		2202
1331	=cut	2203	=cut
1332		2204
1333	our $DB;	2205	our $DB;
1334		2206
1335	{	2207	sub db_init {
		2208	unless ($DB) {
		2209	$DB = BDB::db_create $DB_ENV;
		2210
		2211	cf::sync_job {
		2212	eval {
		2213	$DB->set_flags (BDB::CHKSUM);
		2214
		2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2217	cf::cleanup "db_open(db): $!" if $!;
		2218	};
		2219	cf::cleanup "db_open(db): $@" if $@;
		2220	};
		2221
1336	my $path = cf::localdir . "/database.pst";	2222	my $path = cf::localdir . "/database.pst";
		2223	if (stat $path) {
		2224	cf::sync_job {
		2225	my $pst = Storable::retrieve $path;
1337		2226
1338	sub db_load() {	2227	cf::db_put (board => data => $pst->{board});
1339	warn "loading database $path\n";#d# remove later	2228	cf::db_put (guildrules => data => $pst->{guildrules});
1340	$DB = stat $path ? Storable::retrieve $path : { };	2229	cf::db_put (rent => balance => $pst->{rent}{balance});
1341	}	2230	BDB::db_env_txn_checkpoint $DB_ENV;
1342		2231
1343	my $pid;	2232	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	}	2233	};
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	},	2234	}
1392	);	2235	}
		2236	}
		2237
		2238	sub db_get($$) {
		2239	my $key = "$_[0]/$_[1]";
		2240
		2241	cf::sync_job {
		2242	BDB::db_get $DB, undef, $key, my $data;
		2243
		2244	$! ? ()
		2245	: Compress::LZF::sthaw $data
		2246	}
		2247	}
		2248
		2249	sub db_put($$$) {
		2250	BDB::dbreq_pri 4;
		2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1393	}	2252	}
1394		2253
1395	#############################################################################	2254	#############################################################################
1396	# the server's main()	2255	# the server's init and main functions
		2256
		2257	sub init_resources {
		2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2259	or die "unable to load regions file\n";#d#
		2260	}
1397		2261
1398	sub cfg_load {	2262	sub cfg_load {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	2263	open my $fh, "<:utf8", cf::confdir . "/config"
1400	or return;	2264	or return;
1401		2265
1402	local $/;	2266	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	2267	*CFG = YAML::Syck::Load <$fh>;
		2268
		2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2270
		2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2273
		2274	if (exists $CFG{mlockall}) {
		2275	eval {
		2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2277	and die "WARNING: m(un)lockall failed: $!\n";
		2278	};
		2279	warn $@ if $@;
		2280	}
		2281	}
		2282
		2283	sub init {
		2284	init_resources;
1404	}	2285	}
1405		2286
1406	sub main {	2287	sub main {
1407	# we must not ever block the main coroutine	2288	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	2289	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	2291	(async {
1411	Event::one_event;	2292	Event::one_event;
1412	})->();	2293	})->prio (Coro::PRIO_MAX);
1413	};	2294	};
1414		2295
1415	cfg_load;	2296	cfg_load;
1416	db_load;	2297	db_init;
1417	load_extensions;	2298	load_extensions;
		2299
		2300	$TICK_WATCHER->start;
1418	Event::loop;	2301	Event::loop;
1419	}	2302	}
1420		2303
1421	#############################################################################	2304	#############################################################################
1422	# initialisation	2305	# initialisation and cleanup
1423		2306
		2307	# install some emergency cleanup handlers
		2308	BEGIN {
		2309	for my $signal (qw(INT HUP TERM)) {
		2310	Event->signal (
		2311	reentrant => 0,
		2312	data => WF_AUTOCANCEL,
		2313	signal => $signal,
		2314	prio => 0,
		2315	cb => sub {
		2316	cf::cleanup "SIG$signal";
		2317	},
		2318	);
		2319	}
		2320	}
		2321
		2322	sub emergency_save() {
		2323	my $freeze_guard = cf::freeze_mainloop;
		2324
		2325	warn "enter emergency perl save\n";
		2326
		2327	cf::sync_job {
		2328	# use a peculiar iteration method to avoid tripping on perl
		2329	# refcount bugs in for. also avoids problems with players
		2330	# and maps saved/destroyed asynchronously.
		2331	warn "begin emergency player save\n";
		2332	for my $login (keys %cf::PLAYER) {
		2333	my $pl = $cf::PLAYER{$login} or next;
		2334	$pl->valid or next;
		2335	$pl->save;
		2336	}
		2337	warn "end emergency player save\n";
		2338
		2339	warn "begin emergency map save\n";
		2340	for my $path (keys %cf::MAP) {
		2341	my $map = $cf::MAP{$path} or next;
		2342	$map->valid or next;
		2343	$map->save;
		2344	}
		2345	warn "end emergency map save\n";
		2346
		2347	warn "begin emergency database checkpoint\n";
		2348	BDB::db_env_txn_checkpoint $DB_ENV;
		2349	warn "end emergency database checkpoint\n";
		2350	};
		2351
		2352	warn "leave emergency perl save\n";
		2353	}
		2354
		2355	sub post_cleanup {
		2356	my ($make_core) = @_;
		2357
		2358	warn Carp::longmess "post_cleanup backtrace"
		2359	if $make_core;
		2360	}
		2361
1424	sub perl_reload() {	2362	sub reload() {
1425	# can/must only be called in main	2363	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	2364	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	2365	warn "can only reload from main coroutine";
1428	return;	2366	return;
1429	}	2367	}
1430		2368
1431	warn "reloading...";	2369	warn "reloading...";
1432		2370
1433	local $FREEZE = 1;	2371	warn "entering sync_job";
		2372
		2373	cf::sync_job {
		2374	cf::write_runtime; # external watchdog should not bark
1434	cf::emergency_save;	2375	cf::emergency_save;
		2376	cf::write_runtime; # external watchdog should not bark
1435		2377
1436	eval {	2378	warn "syncing database to disk";
		2379	BDB::db_env_txn_checkpoint $DB_ENV;
		2380
1437	# if anything goes wrong in here, we should simply crash as we already saved	2381	# if anything goes wrong in here, we should simply crash as we already saved
1438		2382
1439	# cancel all watchers	2383	warn "cancelling all WF_AUTOCANCEL watchers";
1440	for (Event::all_watchers) {	2384	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	2385	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	2386	}
1443		2387
		2388	warn "flushing outstanding aio requests";
		2389	for (;;) {
		2390	BDB::flush;
		2391	IO::AIO::flush;
		2392	Coro::cede;
		2393	last unless IO::AIO::nreqs || BDB::nreqs;
		2394	warn "iterate...";
		2395	}
		2396
1444	# cancel all extension coros	2397	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	2398	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	2399	%EXT_CORO = ();
1447		2400
1448	# unload all extensions	2401	warn "removing commands";
1449	for (@exts) {	2402	%COMMAND = ();
		2403
		2404	warn "removing ext commands";
		2405	%EXTCMD = ();
		2406
		2407	warn "unloading/nuking all extensions";
		2408	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	2409	warn "... unloading $pkg";
1451	unload_extension $_;	2410
		2411	if (my $cb = $pkg->can ("unload")) {
		2412	eval {
		2413	$cb->($pkg);
		2414	1
		2415	} or warn "$pkg unloaded, but with errors: $@";
1452	}	2416	}
1453		2417
		2418	warn "... nuking $pkg";
		2419	Symbol::delete_package $pkg;
		2420	}
		2421
1454	# unload all modules loaded from $LIBDIR	2422	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	2423	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		2425
1458	warn "removing <$k>";	2426	warn "... unloading $k";
1459	delete $INC{$k};	2427	delete $INC{$k};
1460		2428
1461	$k =~ s/\.pm$//;	2429	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	2430	$k =~ s/\//::/g;
1463		2431
…		…
1466	}	2434	}
1467		2435
1468	Symbol::delete_package $k;	2436	Symbol::delete_package $k;
1469	}	2437	}
1470		2438
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	2439	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	2440	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		2442
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	2443	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	2444	delete $INC{"cf.pm"};
1484		2445
1485	# don't, removes xs symbols, too,	2446	# don't, removes xs symbols, too,
1486	# and global variables created in xs	2447	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	2448	#Symbol::delete_package __PACKAGE__;
1488		2449
1489	# reload cf.pm	2450	warn "unload completed, starting to reload now";
		2451
1490	warn "reloading cf.pm";	2452	warn "reloading cf.pm";
1491	require cf;	2453	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		2455
1494	# load config and database again	2456	warn "loading config and database again";
1495	cf::cfg_load;	2457	cf::cfg_load;
1496	cf::db_load;
1497		2458
1498	# load extensions
1499	warn "load extensions";	2459	warn "loading extensions";
1500	cf::load_extensions;	2460	cf::load_extensions;
1501		2461
1502	# reattach attachments to objects	2462	warn "reattaching attachments to objects/players";
1503	warn "reattach";
1504	_global_reattach;	2463	_global_reattach;
1505	};	2464	warn "reattaching attachments to maps";
		2465	reattach $_ for values %MAP;
1506		2466
1507	if ($@) {	2467	warn "loading reloadable resources";
		2468	init_resources;
		2469
		2470	warn "leaving sync_job";
		2471
		2472	1
		2473	} or do {
1508	warn $@;	2474	warn $@;
1509	warn "error while reloading, exiting.";	2475	warn "error while reloading, exiting.";
1510	exit 1;	2476	exit 1;
1511	}	2477	};
1512		2478
1513	warn "reloaded successfully";	2479	warn "reloaded";
1514	};	2480	};
1515		2481
1516	#############################################################################	2482	our $RELOAD_WATCHER; # used only during reload
1517		2483
1518	unless ($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	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1527	}
1528
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	2484	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	2485	my ($who, $arg) = @_;
1533		2486
1534	if ($who->flag (FLAG_WIZ)) {	2487	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	2488	$who->message ("reloading server.");
		2489
		2490	# doing reload synchronously and two reloads happen back-to-back,
		2491	# coro crashes during coro_state_free->destroy here.
		2492
		2493	$RELOAD_WATCHER ||= Event->timer (
		2494	reentrant => 0,
		2495	after => 0,
		2496	data => WF_AUTOCANCEL,
		2497	cb => sub {
		2498	reload;
		2499	undef $RELOAD_WATCHER;
		2500	},
		2501	);
1538	}	2502	}
1539	};	2503	};
1540		2504
1541	unshift @INC, $LIBDIR;	2505	unshift @INC, $LIBDIR;
		2506
		2507	my $bug_warning = 0;
1542		2508
1543	$TICK_WATCHER = Event->timer (	2509	$TICK_WATCHER = Event->timer (
1544	reentrant => 0,	2510	reentrant => 0,
		2511	parked => 1,
1545	prio => 0,	2512	prio => 0,
1546	at => $NEXT_TICK || $TICK,	2513	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	2514	data => WF_AUTOCANCEL,
1548	cb => sub {	2515	cb => sub {
1549	unless ($FREEZE) {	2516	if ($Coro::current != $Coro::main) {
		2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2518	unless ++$bug_warning > 10;
		2519	return;
		2520	}
		2521
		2522	$NOW = Event::time;
		2523
1550	cf::server_tick; # one server iteration	2524	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	2525	$RUNTIME += $TICK;
1552	}
1553
1554	$NEXT_TICK += $TICK;	2526	$NEXT_TICK += $TICK;
		2527
		2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2529	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2530	Coro::async_pool {
		2531	write_runtime
		2532	or warn "ERROR: unable to write runtime file: $!";
		2533	};
		2534	}
		2535
		2536	$WAIT_FOR_TICK->broadcast;
		2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2538
		2539	# my $AFTER = Event::time;
		2540	# warn $AFTER - $NOW;#d#
1555		2541
1556	# if we are delayed by four ticks or more, skip them all	2542	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1558		2544
1559	$TICK_WATCHER->at ($NEXT_TICK);	2545	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;	2546	$TICK_WATCHER->start;
1561	},	2547	},
1562	);	2548	);
1563		2549
		2550	{
1564	IO::AIO::max_poll_time $TICK * 0.2;	2551	BDB::max_poll_time $TICK * 0.1;
1565		2552	$BDB_POLL_WATCHER = Event->io (
1566	Event->io (	2553	reentrant => 0,
1567	fd => IO::AIO::poll_fileno,	2554	fd => BDB::poll_fileno,
1568	poll => 'r',	2555	poll => 'r',
1569	prio => 5,	2556	prio => 0,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,	2557	data => WF_AUTOCANCEL,
1576	after => 0,	2558	cb => \&BDB::poll_cb,
1577	interval => 10,	2559	);
1578	cb => sub {	2560	BDB::min_parallel 8;
1579	(Coro::unblock_sub {	2561
1580	write_runtime	2562	BDB::set_sync_prepare {
1581	or warn "ERROR: unable to write runtime file: $!";	2563	my $status;
		2564	my $current = $Coro::current;
		2565	(
		2566	sub {
		2567	$status = $!;
		2568	$current->ready; undef $current;
		2569	},
		2570	sub {
		2571	Coro::schedule while defined $current;
		2572	$! = $status;
		2573	},
		2574	)
		2575	};
		2576
		2577	unless ($DB_ENV) {
		2578	$DB_ENV = BDB::db_env_create;
		2579
		2580	cf::sync_job {
		2581	eval {
		2582	BDB::db_env_open
		2583	$DB_ENV,
		2584	$BDB_ENV_DIR,
		2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2587	0666;
		2588
		2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2590
		2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2592	$DB_ENV->set_lk_detect;
		2593	};
		2594
		2595	cf::cleanup "db_env_open(db): $@" if $@;
1582	})->();	2596	};
1583	},	2597	}
1584	);	2598	}
		2599
		2600	{
		2601	IO::AIO::min_parallel 8;
		2602
		2603	undef $Coro::AIO::WATCHER;
		2604	IO::AIO::max_poll_time $TICK * 0.1;
		2605	$AIO_POLL_WATCHER = Event->io (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	fd => IO::AIO::poll_fileno,
		2609	poll => 'r',
		2610	prio => 6,
		2611	cb => \&IO::AIO::poll_cb,
		2612	);
		2613	}
		2614
		2615	END { cf::emergency_save }
1585		2616
1586	1	2617	1
1587		2618

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