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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 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
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	304	=cut
198		305
199	sub sync_job(&) {	306	sub sync_job(&) {
200	my ($job) = @_;	307	my ($job) = @_;
201		308
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($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
212	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	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;
214	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
215	while ($busy) {	326	while ($busy) {
216	Coro::cede_notself;	327	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	328	}
		329
		330	wantarray ? @res : $res[0]
219	} else {	331	} else {
220	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
221	}	335	}
222
223	wantarray ? @res : $res[0]
224	}	336	}
225		337
226	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
227		339
228	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
230		342
231	=cut	343	=cut
232		344
233	sub coro(&) {	345	sub async_ext(&) {
234	my $cb = shift;	346	my $cb = shift;
235		347
236	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		349
243	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
245	});	352	});
246	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
247		354
248	$coro	355	$coro
249	}	356	}
250		357
251	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
252	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
253		362
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	364	or return;
256		365
257	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
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	371	and return;
260		372
		373	# always fsync - this file is important
261	aio_fsync $fh	374	aio_fsync $fh
262	and return;	375	and return;
263		376
264	close $fh	377	close $fh
265	or return;	378	or return;
…		…
271	}	384	}
272		385
273	=back	386	=back
274		387
275	=cut	388	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		389
387	#############################################################################	390	#############################################################################
388		391
389	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
390		393
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	520	our @CB_MAP = ();
518		521
519	my %attachment;	522	my %attachment;
520		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
521	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
523		532
524	use sort 'stable';	533	use sort 'stable';
525		534
…		…
696	# object support	705	# object support
697		706
698	sub reattach {	707	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		712
702	my $registry = $obj->registry;	713	my $registry = $obj->registry;
703		714
704	@$registry = ();	715	@$registry = ();
705		716
…		…
752	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
753		764
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	769	close $fh;
759		770
760	if (@$objs) {	771	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	777	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
768	}	779	}
769	} else {	780	} else {
770	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
798	or return;	809	or return;
799		810
800	unless (aio_stat "$filename.pst") {	811	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	812	(aio_load "$filename.pst", $av) >= 0
802	or return;	813	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
804	}	815	}
805		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	819	return ($data, $av);
807	}	820	}
808		821
809	#############################################################################	822	#############################################################################
810	# command handling &c	823	# command handling &c
…		…
835	=cut	848	=cut
836		849
837	sub register_extcmd {	850	sub register_extcmd {
838	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
839		852
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
844	}	854	}
845		855
846	cf::player->attach (	856	cf::player->attach (
847	on_command => sub {	857	on_command => sub {
848	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
861		871
862	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
863		873
864	if (ref $msg) {	874	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	878	}
869	}	879	}
870	} else {	880	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		883
874	cf::override;	884	cf::override;
875	},	885	},
876	);	886	);
877		887
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	888	sub load_extension {
885	my ($path) = @_;	889	my ($path) = @_;
886		890
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	892	my $base = $1;
889	my $pkg = $1;	893	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
892		896
893	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
894		898
895	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
896	or die "$path: $!";	900	or die "$path: $!";
897		901
898	my $source =	902	my $source =
899	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
902	. "\n};\n1";	906	. "\n};\n1";
903		907
904	eval $source	908	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	910	: "extension disabled.\n";
907		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	912	warn $@;
909	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
910		914	exit 1;
911	# no strict 'refs';	915	}
912	# @{"$pkg\::ISA"} = ext::;	916	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	917	}
927		918
928	# remove commands	919	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	920	}
953		921
954	sub load_extensions {	922	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	924	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
961	}	929	}
962	}	930	}
963		931
964	#############################################################################	932	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		933
1002	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1003		935
1004	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1005		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1006	=head3 cf::player	944	=head3 cf::player
1007		945
1008	=over 4	946	=over 4
1009		947
1010	=item cf::player::exists $login	948	=item cf::player::find $login
1011		949
1012	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1013		951
1014	=cut	952	=cut
1015		953
1016	sub cf::player::exists($) {	954	sub playerdir($) {
1017	cf::player::find $_[0]	955	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
1019	}	1102	}
1020		1103
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1105
1023	Sends an ext reply to the player.	1106	Sends an ext reply to the player.
1024		1107
1025	=cut	1108	=cut
1026		1109
1027	sub cf::player::ext_reply($$$%) {	1110	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1111	my ($self, $id, %msg) = @_;
1029		1112
1030	$msg{msgid} = $id;	1113	$msg{msgid} = $id;
1031		1114
1032	$self->send ("ext " . to_json \%msg);	1115	$self->send ("ext " . cf::to_json \%msg);
1033	}	1116	}
		1117
		1118	package cf;
1034		1119
1035	=back	1120	=back
1036		1121
1037		1122
1038	=head3 cf::map	1123	=head3 cf::map
…		…
1044	package cf::map;	1129	package cf::map;
1045		1130
1046	use Fcntl;	1131	use Fcntl;
1047	use Coro::AIO;	1132	use Coro::AIO;
1048		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
1049	our $MAX_RESET = 7200;	1138	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1139	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1140
1054	sub generate_random_map {	1141	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1142	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1143	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1144	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1148	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1149	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1286	}
1072		1287
1073	# and all this just because we cannot iterate over	1288	# and all this just because we cannot iterate over
1074	# all maps in C++...	1289	# all maps in C++...
1075	sub change_all_map_light {	1290	sub change_all_map_light {
1076	my ($change) = @_;	1291	my ($change) = @_;
1077		1292
1078	$_->change_map_light ($change) for values %cf::MAP;	1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
1079	}	1295	}
1080		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303	}
		1304
1081	sub try_load_header($) {	1305	sub load_header_from($) {
1082	my ($path) = @_;	1306	my ($self, $path) = @_;
1083		1307
1084	utf8::encode $path;	1308	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
1086	or return;	1313	or return;
1087		1314
1088	my $map = cf::map::new	1315	$self->{load_path} = $path;
		1316
		1317	1
		1318	}
		1319
		1320	sub load_header_orig {
		1321	my ($self) = @_;
		1322
		1323	$self->load_header_from ($self->load_path)
		1324	}
		1325
		1326	sub load_header_temp {
		1327	my ($self) = @_;
		1328
		1329	$self->load_header_from ($self->save_path)
		1330	}
		1331
		1332	sub prepare_temp {
		1333	my ($self) = @_;
		1334
		1335	$self->last_access ((delete $self->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$self->{instantiate_time} = $cf::RUNTIME
		1339	if $self->{instantiate_time} > $cf::RUNTIME;
		1340	}
		1341
		1342	sub prepare_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->{load_original} = 1;
		1346	$self->{instantiate_time} = $cf::RUNTIME;
		1347	$self->last_access ($cf::RUNTIME);
		1348	$self->instantiate;
		1349	}
		1350
		1351	sub load_header {
		1352	my ($self) = @_;
		1353
		1354	if ($self->load_header_temp) {
		1355	$self->prepare_temp;
		1356	} else {
		1357	$self->load_header_orig
1089	or return;	1358	or return;
		1359	$self->prepare_orig;
		1360	}
1090		1361
1091	$map->load_header ($path)	1362	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1363	}
1099		1364
		1365	sub find;
1100	sub find_map {	1366	sub find {
1101	my ($path, $origin) = @_;	1367	my ($path, $origin) = @_;
1102		1368
1103	#warn "find_map<$path,$origin>\n";#d#	1369	$path = normalise $path, $origin && $origin->path;
1104		1370
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1371	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1372
1108	$cf::MAP{$key} || do {	1373	$cf::MAP{$path} || do {
1109	# do it the slow way	1374	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1375	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1376	or return;
1124		1377
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1378	$map->{last_save} = $cf::RUNTIME;
1135		1379
1136	$map->reset if $map->should_reset;	1380	$map->load_header
		1381	or return;
1137		1382
		1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1384	# doing this can freeze the server in a sync job, obviously
		1385	#$cf::WAIT_FOR_TICK->wait;
		1386	$map->reset;
		1387	undef $guard;
		1388	return find $path;
		1389	}
		1390
1138	$cf::MAP{$key} = $map	1391	$cf::MAP{$path} = $map
1139	}	1392	}
1140	}	1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
1141		1397
1142	sub load {	1398	sub load {
1143	my ($self) = @_;	1399	my ($self) = @_;
1144		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
		1403	my $path = $self->{path};
		1404	my $guard = cf::lock_acquire "map_load:$path";
		1405
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1406	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1407
1147	$self->in_memory (cf::MAP_LOADING);	1408	$self->in_memory (cf::MAP_LOADING);
1148		1409
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
1152	$self->load_objects ($self->{load_path}, 1)	1414	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1415	or return;
1154		1416
		1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1418	if delete $self->{load_original};
		1419
1155	if (my $uniq = $path->uniq_path) {	1420	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1421	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1422	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1423	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1424	$self->_load_objects ($uniq, 0);
1160	}	1425	}
1161	}	1426	}
		1427
		1428	Coro::cede;
1162		1429
1163	# now do the right thing for maps	1430	# now do the right thing for maps
1164	$self->link_multipart_objects;	1431	$self->link_multipart_objects;
1165		1432
1166	if ($self->{path}->is_style_map) {	1433	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1434	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1435	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1436	$self->update_buttons;
		1437	Coro::cede;
1173	$self->set_darkness_map;	1438	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1439	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1440	unless $self->difficulty;
		1441	Coro::cede;
1176	$self->activate;	1442	$self->activate;
1177	}	1443	}
1178		1444
		1445	$self->post_load;
		1446
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1447	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1448	}
1181		1449
1182	sub load_map_sync {	1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
		1461	my ($map) = @_;
		1462
		1463	my @diag; # diagonal neighbours
		1464
		1465	for (0 .. 3) {
		1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
		1471
		1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
		1475
		1476	for (@diag) {
		1477	my $neigh = find @$_
		1478	or next;
		1479	$neigh->load;
		1480	}
		1481	}
		1482
		1483	sub find_sync {
1183	my ($path, $origin) = @_;	1484	my ($path, $origin) = @_;
1184		1485
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1486	cf::sync_job { find $path, $origin }
		1487	}
1186		1488
1187	cf::sync_job {	1489	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1490	my ($map) = @_;
1189	or return;	1491
		1492	cf::sync_job { $map->load };
		1493	}
		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
1190	$map->load;	1513	$map->load;
1191	$map	1514
		1515	delete $MAP_PREFETCH{$path};
		1516	}
		1517	}
		1518	undef $MAP_PREFETCHER;
1192	}	1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
1193	}	1523	}
1194		1524
1195	sub save {	1525	sub save {
1196	my ($self) = @_;	1526	my ($self) = @_;
1197		1527
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1529
1201	$self->{last_save} = $cf::RUNTIME;	1530	$self->{last_save} = $cf::RUNTIME;
1202		1531
1203	return unless $self->dirty;	1532	return unless $self->dirty;
1204		1533
		1534	my $save = $self->save_path; utf8::encode $save;
		1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1536
1205	$self->{load_path} = $save;	1537	$self->{load_path} = $save;
1206		1538
1207	return if $self->{deny_save};	1539	return if $self->{deny_save};
1208		1540
1209	warn "saving map ", $self->path;	1541	local $self->{last_access} = $self->last_access;#d#
		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
1210		1546
1211	if ($uniq) {	1547	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1550	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1552	}
1217	}	1553	}
1218		1554
1219	sub swap_out {	1555	sub swap_out {
1220	my ($self) = @_;	1556	my ($self) = @_;
		1557
		1558	# save first because save cedes
		1559	$self->save;
		1560
		1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1562
1222	return if $self->players;	1563	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1565	return if $self->{deny_save};
1225		1566
1226	$self->save;
1227	$self->clear;	1567	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1568	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1569	}
1230		1570
		1571	sub reset_at {
		1572	my ($self) = @_;
		1573
		1574	# TODO: safety, remove and allow resettable per-player maps
		1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1576	return 1e99 if $self->{deny_reset};
		1577
		1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1580
		1581	$time + $to
		1582	}
		1583
1231	sub should_reset {	1584	sub should_reset {
1232	my ($map) = @_;	1585	my ($self) = @_;
1233		1586
1234	# TODO: safety, remove and allow resettable per-player maps	1587	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1588	}
1243		1589
1244	sub reset {	1590	sub reset {
1245	my ($self) = @_;	1591	my ($self) = @_;
1246		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
1247	return if $self->players;	1595	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1596	return if $self->isa ("ext::map_per_player");#d#
1249		1597
1250	warn "resetting map ", $self->path;#d#	1598	warn "resetting map ", $self->path;#d#
1251		1599
1252	utf8::encode (my $save = $self->{path}->save_path);	1600	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1601
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1602	# need to save uniques path
		1603	unless ($self->{deny_save}) {
		1604	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1605
		1606	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1607	if $uniq;
		1608	}
		1609
		1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
1255		1613
1256	$_->clear_links_to ($self) for values %cf::MAP;	1614	$_->clear_links_to ($self) for values %cf::MAP;
1257		1615
		1616	$self->unlink_save;
1258	$self->clear;	1617	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1618	}
1262		1619
1263	sub customise_for {	1620	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1621
1266	if ($map->per_player) {	1622	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1623	my ($self) = @_;
1268	}
1269		1624
1270	$map	1625	delete $cf::MAP{$self->path};
1271	}
1272		1626
1273	sub emergency_save {	1627	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1628
1276	warn "enter emergency map save\n";	1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
		1631	$self->{deny_save} = 1;
		1632	$self->reset_timeout (1);
		1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1634
1278	cf::sync_job {	1635	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1636
1280	$_->save for values %cf::MAP;	1637	$self->reset; # polite request, might not happen
		1638	}
		1639
		1640	=item cf::map::unique_maps
		1641
		1642	Returns an arrayref of paths of all shared maps that have
		1643	instantiated unique items. May block.
		1644
		1645	=cut
		1646
		1647	sub unique_maps() {
		1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
		1650
		1651	my @paths;
		1652
		1653	for (@$files) {
		1654	utf8::decode $_;
		1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
1281	};	1659	}
1282		1660
1283	warn "end emergency map save\n";	1661	\@paths
1284	}	1662	}
1285		1663
1286	package cf;	1664	package cf;
1287		1665
1288	=back	1666	=back
1289		1667
		1668	=head3 cf::object
		1669
		1670	=cut
		1671
		1672	package cf::object;
		1673
		1674	=over 4
		1675
		1676	=item $ob->inv_recursive
		1677
		1678	Returns the inventory of the object _and_ their inventories, recursively.
		1679
		1680	=cut
		1681
		1682	sub inv_recursive_;
		1683	sub inv_recursive_ {
		1684	map { $_, inv_recursive_ $_->inv } @_
		1685	}
		1686
		1687	sub inv_recursive {
		1688	inv_recursive_ inv $_[0]
		1689	}
		1690
		1691	package cf;
		1692
		1693	=back
1290		1694
1291	=head3 cf::object::player	1695	=head3 cf::object::player
1292		1696
1293	=over 4	1697	=over 4
1294		1698
…		…
1330	(ref $cf::CFG{"may_$access"}	1734	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1735	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1736	: $cf::CFG{"may_$access"})
1333	}	1737	}
1334		1738
		1739	=item $player_object->enter_link
		1740
		1741	Freezes the player and moves him/her to a special map (C<{link}>).
		1742
		1743	The player should be reasonably safe there for short amounts of time. You
		1744	I<MUST> call C<leave_link> as soon as possible, though.
		1745
		1746	Will never block.
		1747
		1748	=item $player_object->leave_link ($map, $x, $y)
		1749
		1750	Moves the player out of the special C<{link}> map onto the specified
		1751	map. If the map is not valid (or omitted), the player will be moved back
		1752	to the location he/she was before the call to C<enter_link>, or, if that
		1753	fails, to the emergency map position.
		1754
		1755	Might block.
		1756
		1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
		1768
1335	sub cf::object::player::enter_link {	1769	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1770	my ($self) = @_;
1337		1771
1338	return if $self->map == $LINK_MAP;	1772	$self->deactivate_recursive;
1339		1773
		1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1775
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1777	if $self->map;
1342		1778
1343	$self->enter_map ($LINK_MAP, 20, 20);	1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1780	}
1346		1781
1347	sub cf::object::player::leave_link {	1782	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1783	my ($self, $map, $x, $y) = @_;
1349		1784
1350	my $link_pos = delete $self->{_link_pos};	1785	my $link_pos = delete $self->{_link_pos};
1351		1786
1352	unless ($map) {	1787	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1788	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1789	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1790	$map = cf::map::find $map;
1358		1791
1359	unless ($map) {	1792	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1793	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1794	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1795	or die "FATAL: cannot load emergency map\n";
1363	}	1796	}
1364	}	1797	}
1365		1798
1366	($x, $y) = (-1, -1)	1799	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1802	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1803	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1804	if $x <=0 && $y <= 0;
1372		1805
1373	$map->load;	1806	$map->load;
		1807	$map->load_diag;
1374		1808
		1809	return unless $self->contr->active;
1375	$self->activate_recursive;	1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1377	}	1814	}
1378		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($pl) = @_;
		1819
		1820	# abort map switching before logout
		1821	if ($pl->ob->{_link_pos}) {
		1822	cf::sync_job {
		1823	$pl->ob->leave_link
		1824	};
		1825	}
		1826	},
		1827	on_login => sub {
		1828	my ($pl) = @_;
		1829
		1830	# try to abort aborted map switching on player login :)
		1831	# should happen only on crashes
		1832	if ($pl->ob->{_link_pos}) {
		1833	$pl->ob->enter_link;
		1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
		1839	# we need this sleep as the login has a concurrent enter_exit running
		1840	# and this sleep increases chances of the player not ending up in scorn
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
1379	=item $player_object->goto_map ($map, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1380		1849
1381	=cut	1850	=cut
1382		1851
1383	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1385		1854
1386	$self->enter_link;	1855	$self->enter_link;
1387		1856
1388	(Coro::async {	1857	(async {
1389	$path = new cf::path $path;	1858	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1859	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1864
1397	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1866	})->prio (1);
1399	}	1867	}
1400		1868
…		…
1404		1872
1405	sub parse_random_map_params {	1873	sub parse_random_map_params {
1406	my ($spec) = @_;	1874	my ($spec) = @_;
1407		1875
1408	my $rmp = { # defaults	1876	my $rmp = { # defaults
1409	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1411	};	1881	};
1412		1882
1413	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1415		1885
…		…
1419	$rmp	1889	$rmp
1420	}	1890	}
1421		1891
1422	sub prepare_random_map {	1892	sub prepare_random_map {
1423	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1896
1425	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1899	# that depends on the exit object
1428		1900
1429	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1430		1902
1431	if ($exit->map) {	1903	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1436	}	1908	}
1437		1909
1438	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1439		1911
1440	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1915
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
1445		1920
1446	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1922	$exit->msg (undef);
1448	}	1923	}
1449	}	1924	}
…		…
1451	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1453		1928
1454	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1455		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
		1939
1456	$self->enter_link;	1940	$self->enter_link;
1457		1941
1458	(Coro::async {	1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1944	unless (eval {
1460		1945	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		1946
1467	1;	1947	1;
1468	}) {	1948	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	1950	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1953
1474	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1955	$self->leave_link;
1476	}	1956	}
…		…
1527	on_reply => sub {	2007	on_reply => sub {
1528	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
1529		2009
1530	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
1531	# get handled first	2011	# get handled first
1532	my $queue = delete $ns->{query_queue};	2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2014
1534	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2017
1536	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1537		2019
1538	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2021	if (@$queue) {
…		…
1543	}	2025	}
1544	}	2026	}
1545	},	2027	},
1546	);	2028	);
1547		2029
1548	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1549		2031
1550	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2034	or loss of connection).
1553		2035
1554	=cut	2036	=cut
1555		2037
1556	sub cf::client::coro {	2038	sub cf::client::async {
1557	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1558		2040
1559	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2042
1566	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1568	});	2045	});
1569		2046
…		…
1705	The parameter C<$family> should best start with the name of the extension	2182	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2183	using it, it should be unique.
1707		2184
1708	=over 4	2185	=over 4
1709		2186
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
1717		2188
1718	Returns a single value from the database	2189	Returns a single value from the database.
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724		2190
1725	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
1726		2192
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737		2194
1738	=cut	2195	=cut
1739		2196
1740	our $DB;	2197	our $DB;
1741		2198
1742	{	2199	sub db_init {
		2200	unless ($DB) {
		2201	$DB = BDB::db_create $DB_ENV;
		2202
		2203	cf::sync_job {
		2204	eval {
		2205	$DB->set_flags (BDB::CHKSUM);
		2206
		2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2209	cf::cleanup "db_open(db): $!" if $!;
		2210	};
		2211	cf::cleanup "db_open(db): $@" if $@;
		2212	};
		2213
1743	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
		2215	if (stat $path) {
		2216	cf::sync_job {
		2217	my $pst = Storable::retrieve $path;
1744		2218
1745	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
1746	warn "loading database $path\n";#d# remove later	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1747	$DB = stat $path ? Storable::retrieve $path : { };	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
1748	}	2222	BDB::db_env_txn_checkpoint $DB_ENV;
1749		2223
1750	my $pid;	2224	unlink $path;
1751
1752	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}	2225	};
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});
1773
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {
1780	@_ >= 2
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784
1785	sub db_put($$;$) {
1786	if (@_ >= 3) {
1787	$DB->{$_[0]}{$_[1]} = $_[2];
1788	} else {
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793
1794	cf::global->attach (
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	2226	}
1799	);	2227	}
		2228	}
		2229
		2230	sub db_get($$) {
		2231	my $key = "$_[0]/$_[1]";
		2232
		2233	cf::sync_job {
		2234	BDB::db_get $DB, undef, $key, my $data;
		2235
		2236	$! ? ()
		2237	: Compress::LZF::sthaw $data
		2238	}
		2239	}
		2240
		2241	sub db_put($$$) {
		2242	BDB::dbreq_pri 4;
		2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1800	}	2244	}
1801		2245
1802	#############################################################################	2246	#############################################################################
1803	# the server's main()	2247	# the server's init and main functions
		2248
		2249	sub init_resources {
		2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2251	or die "unable to load regions file\n";#d#
		2252	}
1804		2253
1805	sub cfg_load {	2254	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2256	or return;
1808		2257
1809	local $/;	2258	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
		2260
		2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
		2266	if (exists $CFG{mlockall}) {
		2267	eval {
		2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2269	and die "WARNING: m(un)lockall failed: $!\n";
		2270	};
		2271	warn $@ if $@;
		2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
1811	}	2277	}
1812		2278
1813	sub main {	2279	sub main {
1814	# we must not ever block the main coroutine	2280	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2281	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2283	(async {
1818	Event::one_event;	2284	Event::one_event;
1819	})->();	2285	})->prio (Coro::PRIO_MAX);
1820	};	2286	};
1821		2287
1822	cfg_load;	2288	cfg_load;
1823	db_load;	2289	db_init;
1824	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1825	Event::loop;	2293	Event::loop;
1826	}	2294	}
1827		2295
1828	#############################################################################	2296	#############################################################################
1829	# initialisation	2297	# initialisation and cleanup
1830		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
		2347	sub post_cleanup {
		2348	my ($make_core) = @_;
		2349
		2350	warn Carp::longmess "post_cleanup backtrace"
		2351	if $make_core;
		2352	}
		2353
1831	sub perl_reload() {	2354	sub reload() {
1832	# can/must only be called in main	2355	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2356	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2357	warn "can only reload from main coroutine";
1835	return;	2358	return;
1836	}	2359	}
1837		2360
1838	warn "reloading...";	2361	warn "reloading...";
1839		2362
1840	local $FREEZE = 1;	2363	warn "entering sync_job";
		2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
1842		2369
1843	eval {	2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
1844	# if anything goes wrong in here, we should simply crash as we already saved	2373	# if anything goes wrong in here, we should simply crash as we already saved
1845		2374
1846	# cancel all watchers	2375	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2376	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2377	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2378	}
1850		2379
		2380	warn "flushing outstanding aio requests";
		2381	for (;;) {
		2382	BDB::flush;
		2383	IO::AIO::flush;
		2384	Coro::cede;
		2385	last unless IO::AIO::nreqs || BDB::nreqs;
		2386	warn "iterate...";
		2387	}
		2388
1851	# cancel all extension coros	2389	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2390	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2391	%EXT_CORO = ();
1854		2392
1855	# unload all extensions	2393	warn "removing commands";
1856	for (@exts) {	2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2401	warn "... unloading $pkg";
1858	unload_extension $_;	2402
		2403	if (my $cb = $pkg->can ("unload")) {
		2404	eval {
		2405	$cb->($pkg);
		2406	1
		2407	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2408	}
1860		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
1861	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2417
1865	warn "removing <$k>";	2418	warn "... unloading $k";
1866	delete $INC{$k};	2419	delete $INC{$k};
1867		2420
1868	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
1870		2423
…		…
1873	}	2426	}
1874		2427
1875	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
1876	}	2429	}
1877		2430
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2434
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
1891		2437
1892	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2439	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
1895		2441
1896	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
1897	warn "reloading cf.pm";	2444	warn "reloading cf.pm";
1898	require cf;	2445	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2447
1901	# load config and database again	2448	warn "loading config and database again";
1902	cf::cfg_load;	2449	cf::cfg_load;
1903	cf::db_load;
1904		2450
1905	# load extensions
1906	warn "load extensions";	2451	warn "loading extensions";
1907	cf::load_extensions;	2452	cf::load_extensions;
1908		2453
1909	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2455	_global_reattach;
1912	};	2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
1913		2458
1914	if ($@) {	2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
1915	warn $@;	2466	warn $@;
1916	warn "error while reloading, exiting.";	2467	warn "error while reloading, exiting.";
1917	exit 1;	2468	exit 1;
1918	}	2469	};
1919		2470
1920	warn "reloaded successfully";	2471	warn "reloaded";
1921	};	2472	};
1922		2473
1923	#############################################################################	2474	our $RELOAD_WATCHER; # used only during reload
1924		2475
1925	unless ($LINK_MAP) {
1926	$LINK_MAP = cf::map::new;
1927
1928	$LINK_MAP->width (41);
1929	$LINK_MAP->height (41);
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2476	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
1970		2478
1971	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2480	$who->message ("reloading server.");
		2481
		2482	# doing reload synchronously and two reloads happen back-to-back,
		2483	# coro crashes during coro_state_free->destroy here.
		2484
		2485	$RELOAD_WATCHER ||= Event->timer (
		2486	reentrant => 0,
		2487	after => 0,
		2488	data => WF_AUTOCANCEL,
		2489	cb => sub {
		2490	reload;
		2491	undef $RELOAD_WATCHER;
		2492	},
		2493	);
1975	}	2494	}
1976	};	2495	};
1977		2496
1978	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
		2498
		2499	my $bug_warning = 0;
1979		2500
1980	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2502	reentrant => 0,
		2503	parked => 1,
1982	prio => 0,	2504	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2505	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2506	data => WF_AUTOCANCEL,
1985	cb => sub {	2507	cb => sub {
1986	unless ($FREEZE) {	2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
1987	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2517	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2518	$NEXT_TICK += $TICK;
		2519
		2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2521	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2522	Coro::async_pool {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	};
		2526	}
		2527
		2528	$WAIT_FOR_TICK->broadcast;
		2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2530
		2531	# my $AFTER = Event::time;
		2532	# warn $AFTER - $NOW;#d#
1992		2533
1993	# if we are delayed by four ticks or more, skip them all	2534	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2536
1996	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
1998	},	2539	},
1999	);	2540	);
2000		2541
		2542	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2543	BDB::max_poll_time $TICK * 0.1;
2002		2544	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2545	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2546	fd => BDB::poll_fileno,
2005	poll => 'r',	2547	poll => 'r',
2006	prio => 5,	2548	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2549	data => WF_AUTOCANCEL,
2013	after => 0,	2550	cb => \&BDB::poll_cb,
2014	interval => 10,	2551	);
2015	cb => sub {	2552	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2553
2017	write_runtime	2554	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2555	my $status;
		2556	my $current = $Coro::current;
		2557	(
		2558	sub {
		2559	$status = $!;
		2560	$current->ready; undef $current;
		2561	},
		2562	sub {
		2563	Coro::schedule while defined $current;
		2564	$! = $status;
		2565	},
		2566	)
		2567	};
		2568
		2569	unless ($DB_ENV) {
		2570	$DB_ENV = BDB::db_env_create;
		2571
		2572	cf::sync_job {
		2573	eval {
		2574	BDB::db_env_open
		2575	$DB_ENV,
		2576	$BDB_ENV_DIR,
		2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2579	0666;
		2580
		2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2582
		2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2584	$DB_ENV->set_lk_detect;
		2585	};
		2586
		2587	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2588	};
2020	},	2589	}
2021	);	2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
		2596	IO::AIO::max_poll_time $TICK * 0.1;
		2597	$AIO_POLL_WATCHER = Event->io (
		2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
		2601	poll => 'r',
		2602	prio => 6,
		2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
		2606
		2607	END { cf::emergency_save }
2022		2608
2023	1	2609	1
2024		2610

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