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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.222 by root, Tue Mar 6 03:06:00 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	304	=cut
198		305
199	sub sync_job(&) {	306	sub sync_job(&) {
200	my ($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	my $name = $pl->ob->name;
		1036
		1037	$pl->{deny_save} = 1;
		1038	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1039
		1040	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1041	$pl->deactivate;
		1042	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1043	$pl->ns->destroy if $pl->ns;
		1044
		1045	my $path = playerdir $pl;
		1046	my $temp = "$path~$cf::RUNTIME~deleting~";
		1047	aio_rename $path, $temp;
		1048	delete $cf::PLAYER{$pl->ob->name};
		1049	$pl->destroy;
		1050
		1051	my $prefix = qr<^~\Q$name\E/>;
		1052
		1053	# nuke player maps
		1054	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1055
		1056	IO::AIO::aio_rmtree $temp;
		1057	}
		1058
		1059	=item $pl->kick
		1060
		1061	Kicks a player out of the game. This destroys the connection.
		1062
		1063	=cut
		1064
		1065	sub kick {
		1066	my ($pl, $kicker) = @_;
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1069	$pl->killer ("kicked");
		1070	$pl->ns->destroy;
		1071	}
		1072
		1073	=item cf::player::list_logins
		1074
		1075	Returns am arrayref of all valid playernames in the system, can take a
		1076	while and may block, so not sync_job-capable, ever.
		1077
		1078	=cut
		1079
		1080	sub list_logins {
		1081	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1082	or return [];
		1083
		1084	my @logins;
		1085
		1086	for my $login (@$dirs) {
		1087	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1088	aio_read $fh, 0, 512, my $buf, 0 or next;
		1089	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1090
		1091	utf8::decode $login;
		1092	push @logins, $login;
		1093	}
		1094
		1095	\@logins
		1096	}
		1097
		1098	=item $player->maps
		1099
		1100	Returns an arrayref of map paths that are private for this
		1101	player. May block.
		1102
		1103	=cut
		1104
		1105	sub maps($) {
		1106	my ($pl) = @_;
		1107
		1108	$pl = ref $pl ? $pl->ob->name : $pl;
		1109
		1110	my $files = aio_readdir playerdir $pl
		1111	or return;
		1112
		1113	my @paths;
		1114
		1115	for (@$files) {
		1116	utf8::decode $_;
		1117	next if /\.(?:pl|pst)$/;
		1118	next unless /^$PATH_SEP/o;
		1119
		1120	push @paths, cf::map::normalise "~$pl/$_";
		1121	}
		1122
		1123	\@paths
1019	}	1124	}
1020		1125
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1126	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1127
1023	Sends an ext reply to the player.	1128	Sends an ext reply to the player.
1024		1129
1025	=cut	1130	=cut
1026		1131
1027	sub cf::player::ext_reply($$$%) {	1132	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1133	my ($self, $id, %msg) = @_;
1029		1134
1030	$msg{msgid} = $id;	1135	$msg{msgid} = $id;
1031		1136
1032	$self->send ("ext " . to_json \%msg);	1137	$self->send ("ext " . cf::to_json \%msg);
1033	}	1138	}
		1139
		1140	package cf;
1034		1141
1035	=back	1142	=back
1036		1143
1037		1144
1038	=head3 cf::map	1145	=head3 cf::map
…		…
1044	package cf::map;	1151	package cf::map;
1045		1152
1046	use Fcntl;	1153	use Fcntl;
1047	use Coro::AIO;	1154	use Coro::AIO;
1048		1155
		1156	use overload
		1157	'""' => \&as_string,
		1158	fallback => 1;
		1159
1049	our $MAX_RESET = 7200;	1160	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1161	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1162
1054	sub generate_random_map {	1163	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1164	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1165	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1166	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1167	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1168	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1169	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1170	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1171	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1172	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1173	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1174	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1175	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1176	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1177	(cf::region::find $rmp->{region}), $rmp->{custom}
		1178	)
		1179	}
		1180
		1181	=item cf::map->register ($regex, $prio)
		1182
		1183	Register a handler for the map path matching the given regex at the
		1184	givne priority (higher is better, built-in handlers have priority 0, the
		1185	default).
		1186
		1187	=cut
		1188
		1189	sub register {
		1190	my (undef, $regex, $prio) = @_;
		1191	my $pkg = caller;
		1192
		1193	no strict;
		1194	push @{"$pkg\::ISA"}, __PACKAGE__;
		1195
		1196	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1197	}
		1198
		1199	# also paths starting with '/'
		1200	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1201
		1202	sub thawer_merge {
		1203	my ($self, $merge) = @_;
		1204
		1205	# we have to keep some variables in memory intact
		1206	local $self->{path};
		1207	local $self->{load_path};
		1208	local $self->{deny_save};
		1209	local $self->{deny_reset};
		1210
		1211	$self->SUPER::thawer_merge ($merge);
		1212	}
		1213
		1214	sub normalise {
		1215	my ($path, $base) = @_;
		1216
		1217	$path = "$path"; # make sure its a string
		1218
		1219	$path =~ s/\.map$//;
		1220
		1221	# map plan:
		1222	#
		1223	# /! non-realised random map exit (special hack!)
		1224	# {... are special paths that are not being touched
		1225	# ?xxx/... are special absolute paths
		1226	# ?random/... random maps
		1227	# /... normal maps
		1228	# ~user/... per-player map of a specific user
		1229
		1230	$path =~ s/$PATH_SEP/\//go;
		1231
		1232	# treat it as relative path if it starts with
		1233	# something that looks reasonable
		1234	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1235	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1236
		1237	$base =~ s{[^/]+/?$}{};
		1238	$path = "$base/$path";
		1239	}
		1240
		1241	for ($path) {
		1242	redo if s{//}{/};
		1243	redo if s{/\.?/}{/};
		1244	redo if s{/[^/]+/\.\./}{/};
		1245	}
		1246
		1247	$path
		1248	}
		1249
		1250	sub new_from_path {
		1251	my (undef, $path, $base) = @_;
		1252
		1253	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1254
		1255	$path = normalise $path, $base;
		1256
		1257	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1258	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1259	my $self = bless cf::map::new, $pkg;
		1260	$self->{path} = $path; $self->path ($path);
		1261	$self->init; # pass $1 etc.
		1262	return $self;
		1263	}
		1264	}
		1265
		1266	Carp::carp "unable to resolve path '$path' (base '$base').";
		1267	()
		1268	}
		1269
		1270	sub init {
		1271	my ($self) = @_;
		1272
		1273	$self
		1274	}
		1275
		1276	sub as_string {
		1277	my ($self) = @_;
		1278
		1279	"$self->{path}"
		1280	}
		1281
		1282	# the displayed name, this is a one way mapping
		1283	sub visible_name {
		1284	&as_string
		1285	}
		1286
		1287	# the original (read-only) location
		1288	sub load_path {
		1289	my ($self) = @_;
		1290
		1291	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1292	}
		1293
		1294	# the temporary/swap location
		1295	sub save_path {
		1296	my ($self) = @_;
		1297
		1298	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1299	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1300	}
		1301
		1302	# the unique path, undef == no special unique path
		1303	sub uniq_path {
		1304	my ($self) = @_;
		1305
		1306	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1307	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1308	}
1072		1309
1073	# and all this just because we cannot iterate over	1310	# and all this just because we cannot iterate over
1074	# all maps in C++...	1311	# all maps in C++...
1075	sub change_all_map_light {	1312	sub change_all_map_light {
1076	my ($change) = @_;	1313	my ($change) = @_;
1077		1314
1078	$_->change_map_light ($change) for values %cf::MAP;	1315	$_->change_map_light ($change)
		1316	for grep $_->outdoor, values %cf::MAP;
1079	}	1317	}
1080		1318
		1319	sub unlink_save {
		1320	my ($self) = @_;
		1321
		1322	utf8::encode (my $save = $self->save_path);
		1323	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1325	}
		1326
1081	sub try_load_header($) {	1327	sub load_header_from($) {
1082	my ($path) = @_;	1328	my ($self, $path) = @_;
1083		1329
1084	utf8::encode $path;	1330	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1331	#aio_open $path, O_RDONLY, 0
		1332	# or return;
		1333
		1334	$self->_load_header ($path)
1086	or return;	1335	or return;
1087		1336
1088	my $map = cf::map::new	1337	$self->{load_path} = $path;
		1338
		1339	1
		1340	}
		1341
		1342	sub load_header_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->load_path)
		1346	}
		1347
		1348	sub load_header_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->load_header_from ($self->save_path)
		1352	}
		1353
		1354	sub prepare_temp {
		1355	my ($self) = @_;
		1356
		1357	$self->last_access ((delete $self->{last_access})
		1358	|| $cf::RUNTIME); #d#
		1359	# safety
		1360	$self->{instantiate_time} = $cf::RUNTIME
		1361	if $self->{instantiate_time} > $cf::RUNTIME;
		1362	}
		1363
		1364	sub prepare_orig {
		1365	my ($self) = @_;
		1366
		1367	$self->{load_original} = 1;
		1368	$self->{instantiate_time} = $cf::RUNTIME;
		1369	$self->last_access ($cf::RUNTIME);
		1370	$self->instantiate;
		1371	}
		1372
		1373	sub load_header {
		1374	my ($self) = @_;
		1375
		1376	if ($self->load_header_temp) {
		1377	$self->prepare_temp;
		1378	} else {
		1379	$self->load_header_orig
1089	or return;	1380	or return;
		1381	$self->prepare_orig;
		1382	}
1090		1383
1091	$map->load_header ($path)	1384	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1385	}
1099		1386
		1387	sub find;
1100	sub find_map {	1388	sub find {
1101	my ($path, $origin) = @_;	1389	my ($path, $origin) = @_;
1102		1390
1103	#warn "find_map<$path,$origin>\n";#d#	1391	$path = normalise $path, $origin && $origin->path;
1104		1392
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1393	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1394
1108	$cf::MAP{$key} || do {	1395	$cf::MAP{$path} || do {
1109	# do it the slow way	1396	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1397	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;	1398	or return;
1124		1399
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1400	$map->{last_save} = $cf::RUNTIME;
1136		1401
1137	$map->reset if $map->should_reset;	1402	$map->load_header
		1403	or return;
1138		1404
		1405	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1406	# doing this can freeze the server in a sync job, obviously
		1407	#$cf::WAIT_FOR_TICK->wait;
		1408	$map->reset;
		1409	undef $guard;
		1410	return find $path;
		1411	}
		1412
1139	$cf::MAP{$key} = $map	1413	$cf::MAP{$path} = $map
1140	}	1414	}
1141	}	1415	}
		1416
		1417	sub pre_load { }
		1418	sub post_load { }
1142		1419
1143	sub load {	1420	sub load {
1144	my ($self) = @_;	1421	my ($self) = @_;
1145		1422
		1423	local $self->{deny_reset} = 1; # loading can take a long time
		1424
		1425	my $path = $self->{path};
		1426	my $guard = cf::lock_acquire "map_load:$path";
		1427
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1428	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1429
1148	$self->in_memory (cf::MAP_LOADING);	1430	$self->in_memory (cf::MAP_LOADING);
1149		1431
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1432	$self->alloc;
		1433
		1434	$self->pre_load;
		1435
1153	$self->load_objects ($self->{load_path}, 1)	1436	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1437	or return;
1155		1438
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1439	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1440	if delete $self->{load_original};
1157		1441
1158	if (my $uniq = $path->uniq_path) {	1442	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1443	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1444	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1445	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1446	$self->_load_objects ($uniq, 0);
1163	}	1447	}
1164	}	1448	}
		1449
		1450	Coro::cede;
1165		1451
1166	# now do the right thing for maps	1452	# now do the right thing for maps
1167	$self->link_multipart_objects;	1453	$self->link_multipart_objects;
1168		1454
1169	if ($self->{path}->is_style_map) {	1455	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1456	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1457	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1458	$self->update_buttons;
		1459	Coro::cede;
1176	$self->set_darkness_map;	1460	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1461	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1462	unless $self->difficulty;
		1463	Coro::cede;
1179	$self->activate;	1464	$self->activate;
1180	}	1465	}
1181		1466
		1467	$self->post_load;
		1468
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1469	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1470	}
1184		1471
1185	sub load_map_sync {	1472	sub customise_for {
		1473	my ($self, $ob) = @_;
		1474
		1475	return find "~" . $ob->name . "/" . $self->{path}
		1476	if $self->per_player;
		1477
		1478	$self
		1479	}
		1480
		1481	# find and load all maps in the 3x3 area around a map
		1482	sub load_diag {
		1483	my ($map) = @_;
		1484
		1485	my @diag; # diagonal neighbours
		1486
		1487	for (0 .. 3) {
		1488	my $neigh = $map->tile_path ($_)
		1489	or next;
		1490	$neigh = find $neigh, $map
		1491	or next;
		1492	$neigh->load;
		1493
		1494	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1495	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1496	}
		1497
		1498	for (@diag) {
		1499	my $neigh = find @$_
		1500	or next;
		1501	$neigh->load;
		1502	}
		1503	}
		1504
		1505	sub find_sync {
1186	my ($path, $origin) = @_;	1506	my ($path, $origin) = @_;
1187		1507
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1508	cf::sync_job { find $path, $origin }
		1509	}
1189		1510
1190	cf::sync_job {	1511	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1512	my ($map) = @_;
1192	or return;	1513
		1514	cf::sync_job { $map->load };
		1515	}
		1516
		1517	our %MAP_PREFETCH;
		1518	our $MAP_PREFETCHER = undef;
		1519
		1520	sub find_async {
		1521	my ($path, $origin) = @_;
		1522
		1523	$path = normalise $path, $origin && $origin->{path};
		1524
		1525	if (my $map = $cf::MAP{$path}) {
		1526	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1527	}
		1528
		1529	undef $MAP_PREFETCH{$path};
		1530	$MAP_PREFETCHER ||= cf::async {
		1531	while (%MAP_PREFETCH) {
		1532	for my $path (keys %MAP_PREFETCH) {
		1533	my $map = find $path
		1534	or next;
1193	$map->load;	1535	$map->load;
1194	$map	1536
		1537	delete $MAP_PREFETCH{$path};
		1538	}
		1539	}
		1540	undef $MAP_PREFETCHER;
1195	}	1541	};
		1542	$MAP_PREFETCHER->prio (6);
		1543
		1544	()
1196	}	1545	}
1197		1546
1198	sub save {	1547	sub save {
1199	my ($self) = @_;	1548	my ($self) = @_;
1200		1549
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1550	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1551
1204	$self->{last_save} = $cf::RUNTIME;	1552	$self->{last_save} = $cf::RUNTIME;
1205		1553
1206	return unless $self->dirty;	1554	return unless $self->dirty;
1207		1555
		1556	my $save = $self->save_path; utf8::encode $save;
		1557	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1558
1208	$self->{load_path} = $save;	1559	$self->{load_path} = $save;
1209		1560
1210	return if $self->{deny_save};	1561	return if $self->{deny_save};
1211		1562
1212	warn "saving map ", $self->path;	1563	local $self->{last_access} = $self->last_access;#d#
		1564
		1565	cf::async {
		1566	$_->contr->save for $self->players;
		1567	};
1213		1568
1214	if ($uniq) {	1569	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1570	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1571	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1572	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1574	}
1220	}	1575	}
1221		1576
1222	sub swap_out {	1577	sub swap_out {
1223	my ($self) = @_;	1578	my ($self) = @_;
		1579
		1580	# save first because save cedes
		1581	$self->save;
		1582
		1583	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1584
1225	return if $self->players;	1585	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1586	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1587	return if $self->{deny_save};
1228		1588
1229	$self->save;
1230	$self->clear;	1589	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1590	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1591	}
1233		1592
		1593	sub reset_at {
		1594	my ($self) = @_;
		1595
		1596	# TODO: safety, remove and allow resettable per-player maps
		1597	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1598	return 1e99 if $self->{deny_reset};
		1599
		1600	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1601	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1602
		1603	$time + $to
		1604	}
		1605
1234	sub should_reset {	1606	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1607	my ($self) = @_;
1251		1608
1252	utf8::encode (my $save = $self->{path}->save_path);	1609	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1610	}
1256		1611
1257	sub reset {	1612	sub reset {
1258	my ($self) = @_;	1613	my ($self) = @_;
1259		1614
		1615	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1616
1260	return if $self->players;	1617	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1618	return if $self->isa ("ext::map_per_player");#d#
1262		1619
1263	warn "resetting map ", $self->path;#d#	1620	warn "resetting map ", $self->path;#d#
1264		1621
		1622	$self->in_memory (cf::MAP_SWAPPED);
		1623
		1624	# need to save uniques path
		1625	unless ($self->{deny_save}) {
		1626	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1627
		1628	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1629	if $uniq;
		1630	}
		1631
1265	delete $cf::MAP{$self->path};	1632	delete $cf::MAP{$self->path};
		1633
		1634	$self->clear;
1266		1635
1267	$_->clear_links_to ($self) for values %cf::MAP;	1636	$_->clear_links_to ($self) for values %cf::MAP;
1268		1637
1269	$self->unlink_save;	1638	$self->unlink_save;
1270	$self->destroy;	1639	$self->destroy;
1271	}	1640	}
1272		1641
1273	sub customise_for {	1642	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1643
1276	if ($map->per_player) {	1644	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1645	my ($self) = @_;
1278	}
1279		1646
1280	$map	1647	delete $cf::MAP{$self->path};
1281	}
1282		1648
1283	sub emergency_save {	1649	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1650
1286	warn "enter emergency map save\n";	1651	bless $self, "cf::map";
		1652	delete $self->{deny_reset};
		1653	$self->{deny_save} = 1;
		1654	$self->reset_timeout (1);
		1655	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1656
1288	cf::sync_job {	1657	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1658
1290	$_->save for values %cf::MAP;	1659	$self->reset; # polite request, might not happen
		1660	}
		1661
		1662	=item cf::map::unique_maps
		1663
		1664	Returns an arrayref of paths of all shared maps that have
		1665	instantiated unique items. May block.
		1666
		1667	=cut
		1668
		1669	sub unique_maps() {
		1670	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1671	or return;
		1672
		1673	my @paths;
		1674
		1675	for (@$files) {
		1676	utf8::decode $_;
		1677	next if /\.pst$/;
		1678	next unless /^$PATH_SEP/o;
		1679
		1680	push @paths, cf::map::normalise $_;
1291	};	1681	}
1292		1682
1293	warn "end emergency map save\n";	1683	\@paths
1294	}	1684	}
1295		1685
1296	package cf;	1686	package cf;
1297		1687
1298	=back	1688	=back
1299		1689
		1690	=head3 cf::object
		1691
		1692	=cut
		1693
		1694	package cf::object;
		1695
		1696	=over 4
		1697
		1698	=item $ob->inv_recursive
		1699
		1700	Returns the inventory of the object _and_ their inventories, recursively.
		1701
		1702	=cut
		1703
		1704	sub inv_recursive_;
		1705	sub inv_recursive_ {
		1706	map { $_, inv_recursive_ $_->inv } @_
		1707	}
		1708
		1709	sub inv_recursive {
		1710	inv_recursive_ inv $_[0]
		1711	}
		1712
		1713	package cf;
		1714
		1715	=back
1300		1716
1301	=head3 cf::object::player	1717	=head3 cf::object::player
1302		1718
1303	=over 4	1719	=over 4
1304		1720
…		…
1340	(ref $cf::CFG{"may_$access"}	1756	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1757	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1758	: $cf::CFG{"may_$access"})
1343	}	1759	}
1344		1760
		1761	=item $player_object->enter_link
		1762
		1763	Freezes the player and moves him/her to a special map (C<{link}>).
		1764
		1765	The player should be reasonably safe there for short amounts of time. You
		1766	I<MUST> call C<leave_link> as soon as possible, though.
		1767
		1768	Will never block.
		1769
		1770	=item $player_object->leave_link ($map, $x, $y)
		1771
		1772	Moves the player out of the special C<{link}> map onto the specified
		1773	map. If the map is not valid (or omitted), the player will be moved back
		1774	to the location he/she was before the call to C<enter_link>, or, if that
		1775	fails, to the emergency map position.
		1776
		1777	Might block.
		1778
		1779	=cut
		1780
		1781	sub link_map {
		1782	unless ($LINK_MAP) {
		1783	$LINK_MAP = cf::map::find "{link}"
		1784	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1785	$LINK_MAP->load;
		1786	}
		1787
		1788	$LINK_MAP
		1789	}
		1790
1345	sub cf::object::player::enter_link {	1791	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1792	my ($self) = @_;
1347		1793
1348	return if $self->map == $LINK_MAP;	1794	$self->deactivate_recursive;
1349		1795
		1796	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1797
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1798	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1799	if $self->map;
1352		1800
1353	$self->enter_map ($LINK_MAP, 20, 20);	1801	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1802	}
1356		1803
1357	sub cf::object::player::leave_link {	1804	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1805	my ($self, $map, $x, $y) = @_;
1359		1806
1360	my $link_pos = delete $self->{_link_pos};	1807	my $link_pos = delete $self->{_link_pos};
1361		1808
1362	unless ($map) {	1809	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1810	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1811	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1812	$map = cf::map::find $map;
1368		1813
1369	unless ($map) {	1814	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1815	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1816	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1817	or die "FATAL: cannot load emergency map\n";
1373	}	1818	}
1374	}	1819	}
1375		1820
1376	($x, $y) = (-1, -1)	1821	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1824	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1825	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1826	if $x <=0 && $y <= 0;
1382		1827
1383	$map->load;	1828	$map->load;
		1829	$map->load_diag;
1384		1830
		1831	return unless $self->contr->active;
1385	$self->activate_recursive;	1832	$self->activate_recursive;
		1833
		1834	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	1835	$self->enter_map ($map, $x, $y);
1387	}	1836	}
1388		1837
		1838	cf::player->attach (
		1839	on_logout => sub {
		1840	my ($pl) = @_;
		1841
		1842	# abort map switching before logout
		1843	if ($pl->ob->{_link_pos}) {
		1844	cf::sync_job {
		1845	$pl->ob->leave_link
		1846	};
		1847	}
		1848	},
		1849	on_login => sub {
		1850	my ($pl) = @_;
		1851
		1852	# try to abort aborted map switching on player login :)
		1853	# should happen only on crashes
		1854	if ($pl->ob->{_link_pos}) {
		1855	$pl->ob->enter_link;
		1856	(async {
		1857	$pl->ob->reply (undef,
		1858	"There was an internal problem at your last logout, "
		1859	. "the server will try to bring you to your intended destination in a second.",
		1860	cf::NDI_RED);
		1861	# we need this sleep as the login has a concurrent enter_exit running
		1862	# and this sleep increases chances of the player not ending up in scorn
		1863	Coro::Timer::sleep 1;
		1864	$pl->ob->leave_link;
		1865	})->prio (2);
		1866	}
		1867	},
		1868	);
		1869
1389	=item $player_object->goto_map ($map, $x, $y)	1870	=item $player_object->goto ($path, $x, $y)
1390		1871
1391	=cut	1872	=cut
1392		1873
1393	sub cf::object::player::goto_map {	1874	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1875	my ($self, $path, $x, $y) = @_;
1395		1876
1396	$self->enter_link;	1877	$self->enter_link;
1397		1878
1398	(Coro::async {	1879	(async {
1399	$path = new cf::path $path;	1880	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1881	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1882	$map = $map->customise_for ($self) if $map;
1403
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1883	$map
		1884	} or
		1885	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1886
1407	$self->leave_link ($map, $x, $y);	1887	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1888	})->prio (1);
1409	}	1889	}
1410		1890
…		…
1414		1894
1415	sub parse_random_map_params {	1895	sub parse_random_map_params {
1416	my ($spec) = @_;	1896	my ($spec) = @_;
1417		1897
1418	my $rmp = { # defaults	1898	my $rmp = { # defaults
1419	xsize => 10,	1899	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1900	ysize => (cf::rndm 15, 40),
		1901	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1902	#layout => string,
1421	};	1903	};
1422		1904
1423	for (split /\n/, $spec) {	1905	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1906	my ($k, $v) = split /\s+/, $_, 2;
1425		1907
…		…
1429	$rmp	1911	$rmp
1430	}	1912	}
1431		1913
1432	sub prepare_random_map {	1914	sub prepare_random_map {
1433	my ($exit) = @_;	1915	my ($exit) = @_;
		1916
		1917	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1918
1435	# all this does is basically replace the /! path by	1919	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1920	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1921	# that depends on the exit object
1438		1922
1439	my $rmp = parse_random_map_params $exit->msg;	1923	my $rmp = parse_random_map_params $exit->msg;
1440		1924
1441	if ($exit->map) {	1925	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	1926	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	1927	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	1928	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	1929	$rmp->{origin_y} = $exit->y;
1446	}	1930	}
1447		1931
1448	$rmp->{random_seed} ||= $exit->random_seed;	1932	$rmp->{random_seed} ||= $exit->random_seed;
1449		1933
1450	my $data = cf::to_json $rmp;	1934	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1935	my $md5 = Digest::MD5::md5_hex $data;
		1936	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1937
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1938	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	1939	aio_write $fh, 0, (length $data), $data, 0;
		1940	undef $fh;
		1941	aio_rename "$meta~", $meta;
1455		1942
1456	$exit->slaying ("?random/$md5");	1943	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1944	$exit->msg (undef);
1458	}	1945	}
1459	}	1946	}
…		…
1461	sub cf::object::player::enter_exit {	1948	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1949	my ($self, $exit) = @_;
1463		1950
1464	return unless $self->type == cf::PLAYER;	1951	return unless $self->type == cf::PLAYER;
1465		1952
		1953	if ($exit->slaying eq "/!") {
		1954	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1955	cf::sync_job { prepare_random_map $exit };
		1956	}
		1957
		1958	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1959	my $hp = $exit->stats->hp;
		1960	my $sp = $exit->stats->sp;
		1961
1466	$self->enter_link;	1962	$self->enter_link;
1467		1963
1468	(Coro::async {	1964	(async {
		1965	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1966	unless (eval {
1470		1967	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		1968
1477	1;	1969	1;
1478	}) {	1970	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1971	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	1972	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	1973	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1974	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1975
1484	warn "ERROR in enter_exit: $@";	1976	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1977	$self->leave_link;
1486	}	1978	}
…		…
1537	on_reply => sub {	2029	on_reply => sub {
1538	my ($ns, $msg) = @_;	2030	my ($ns, $msg) = @_;
1539		2031
1540	# this weird shuffling is so that direct followup queries	2032	# this weird shuffling is so that direct followup queries
1541	# get handled first	2033	# get handled first
1542	my $queue = delete $ns->{query_queue};	2034	my $queue = delete $ns->{query_queue}
		2035	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2036
1544	(shift @$queue)->[1]->($msg);	2037	(shift @$queue)->[1]->($msg);
		2038	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2039
1546	push @{ $ns->{query_queue} }, @$queue;	2040	push @{ $ns->{query_queue} }, @$queue;
1547		2041
1548	if (@{ $ns->{query_queue} } == @$queue) {	2042	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2043	if (@$queue) {
…		…
1553	}	2047	}
1554	}	2048	}
1555	},	2049	},
1556	);	2050	);
1557		2051
1558	=item $client->coro (\&cb)	2052	=item $client->async (\&cb)
1559		2053
1560	Create a new coroutine, running the specified callback. The coroutine will	2054	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2055	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2056	or loss of connection).
1563		2057
1564	=cut	2058	=cut
1565		2059
1566	sub cf::client::coro {	2060	sub cf::client::async {
1567	my ($self, $cb) = @_;	2061	my ($self, $cb) = @_;
1568		2062
1569	my $coro; $coro = async {	2063	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2064
1576	$coro->on_destroy (sub {	2065	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2066	delete $self->{_coro}{$coro+0};
1578	});	2067	});
1579		2068
…		…
1715	The parameter C<$family> should best start with the name of the extension	2204	The parameter C<$family> should best start with the name of the extension
1716	using it, it should be unique.	2205	using it, it should be unique.
1717		2206
1718	=over 4	2207	=over 4
1719		2208
1720	=item $hashref = cf::db_get $family
1721
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key	2209	=item $value = cf::db_get $family => $key
1727		2210
1728	Returns a single value from the database	2211	Returns a single value from the database.
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734		2212
1735	=item cf::db_put $family => $key => $value	2213	=item cf::db_put $family => $key => $value
1736		2214
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2215	Stores the given C<$value> in the family.
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747		2216
1748	=cut	2217	=cut
1749		2218
1750	our $DB;	2219	our $DB;
1751		2220
1752	{	2221	sub db_init {
		2222	unless ($DB) {
		2223	$DB = BDB::db_create $DB_ENV;
		2224
		2225	cf::sync_job {
		2226	eval {
		2227	$DB->set_flags (BDB::CHKSUM);
		2228
		2229	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2230	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2231	cf::cleanup "db_open(db): $!" if $!;
		2232	};
		2233	cf::cleanup "db_open(db): $@" if $@;
		2234	};
		2235
1753	my $path = cf::localdir . "/database.pst";	2236	my $path = cf::localdir . "/database.pst";
		2237	if (stat $path) {
		2238	cf::sync_job {
		2239	my $pst = Storable::retrieve $path;
1754		2240
1755	sub db_load() {	2241	cf::db_put (board => data => $pst->{board});
1756	warn "loading database $path\n";#d# remove later	2242	cf::db_put (guildrules => data => $pst->{guildrules});
1757	$DB = stat $path ? Storable::retrieve $path : { };	2243	cf::db_put (rent => balance => $pst->{rent}{balance});
1758	}	2244	BDB::db_env_txn_checkpoint $DB_ENV;
1759		2245
1760	my $pid;	2246	unlink $path;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}	2247	};
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2248	}
1809	);	2249	}
		2250	}
		2251
		2252	sub db_get($$) {
		2253	my $key = "$_[0]/$_[1]";
		2254
		2255	cf::sync_job {
		2256	BDB::db_get $DB, undef, $key, my $data;
		2257
		2258	$! ? ()
		2259	: Compress::LZF::sthaw $data
		2260	}
		2261	}
		2262
		2263	sub db_put($$$) {
		2264	BDB::dbreq_pri 4;
		2265	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1810	}	2266	}
1811		2267
1812	#############################################################################	2268	#############################################################################
1813	# the server's main()	2269	# the server's init and main functions
		2270
		2271	sub init_resources {
		2272	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2273	or die "unable to load regions file\n";#d#
		2274	}
1814		2275
1815	sub cfg_load {	2276	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2277	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2278	or return;
1818		2279
1819	local $/;	2280	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2281	*CFG = YAML::Syck::Load <$fh>;
		2282
		2283	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2284
		2285	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2286	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2287
		2288	if (exists $CFG{mlockall}) {
		2289	eval {
		2290	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2291	and die "WARNING: m(un)lockall failed: $!\n";
		2292	};
		2293	warn $@ if $@;
		2294	}
		2295	}
		2296
		2297	sub init {
		2298	init_resources;
1821	}	2299	}
1822		2300
1823	sub main {	2301	sub main {
1824	# we must not ever block the main coroutine	2302	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2303	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2304	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2305	(async {
1828	Event::one_event;	2306	Event::one_event;
1829	})->();	2307	})->prio (Coro::PRIO_MAX);
1830	};	2308	};
1831		2309
1832	cfg_load;	2310	cfg_load;
1833	db_load;	2311	db_init;
1834	load_extensions;	2312	load_extensions;
		2313
		2314	$TICK_WATCHER->start;
1835	Event::loop;	2315	Event::loop;
1836	}	2316	}
1837		2317
1838	#############################################################################	2318	#############################################################################
1839	# initialisation	2319	# initialisation and cleanup
		2320
		2321	# install some emergency cleanup handlers
		2322	BEGIN {
		2323	for my $signal (qw(INT HUP TERM)) {
		2324	Event->signal (
		2325	reentrant => 0,
		2326	data => WF_AUTOCANCEL,
		2327	signal => $signal,
		2328	prio => 0,
		2329	cb => sub {
		2330	cf::cleanup "SIG$signal";
		2331	},
		2332	);
		2333	}
		2334	}
		2335
		2336	sub emergency_save() {
		2337	my $freeze_guard = cf::freeze_mainloop;
		2338
		2339	warn "enter emergency perl save\n";
		2340
		2341	cf::sync_job {
		2342	# use a peculiar iteration method to avoid tripping on perl
		2343	# refcount bugs in for. also avoids problems with players
		2344	# and maps saved/destroyed asynchronously.
		2345	warn "begin emergency player save\n";
		2346	for my $login (keys %cf::PLAYER) {
		2347	my $pl = $cf::PLAYER{$login} or next;
		2348	$pl->valid or next;
		2349	$pl->save;
		2350	}
		2351	warn "end emergency player save\n";
		2352
		2353	warn "begin emergency map save\n";
		2354	for my $path (keys %cf::MAP) {
		2355	my $map = $cf::MAP{$path} or next;
		2356	$map->valid or next;
		2357	$map->save;
		2358	}
		2359	warn "end emergency map save\n";
		2360
		2361	warn "begin emergency database checkpoint\n";
		2362	BDB::db_env_txn_checkpoint $DB_ENV;
		2363	warn "end emergency database checkpoint\n";
		2364	};
		2365
		2366	warn "leave emergency perl save\n";
		2367	}
		2368
		2369	sub post_cleanup {
		2370	my ($make_core) = @_;
		2371
		2372	warn Carp::longmess "post_cleanup backtrace"
		2373	if $make_core;
		2374	}
1840		2375
1841	sub reload() {	2376	sub reload() {
1842	# can/must only be called in main	2377	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2378	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2379	warn "can only reload from main coroutine";
1845	return;	2380	return;
1846	}	2381	}
1847		2382
1848	warn "reloading...";	2383	warn "reloading...";
1849		2384
1850	local $FREEZE = 1;	2385	warn "entering sync_job";
		2386
		2387	cf::sync_job {
		2388	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2389	cf::emergency_save;
		2390	cf::write_runtime; # external watchdog should not bark
1852		2391
1853	eval {	2392	warn "syncing database to disk";
		2393	BDB::db_env_txn_checkpoint $DB_ENV;
		2394
1854	# if anything goes wrong in here, we should simply crash as we already saved	2395	# if anything goes wrong in here, we should simply crash as we already saved
1855		2396
1856	# cancel all watchers	2397	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2398	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2399	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2400	}
1860		2401
		2402	warn "flushing outstanding aio requests";
		2403	for (;;) {
		2404	BDB::flush;
		2405	IO::AIO::flush;
		2406	Coro::cede;
		2407	last unless IO::AIO::nreqs || BDB::nreqs;
		2408	warn "iterate...";
		2409	}
		2410
1861	# cancel all extension coros	2411	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2412	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2413	%EXT_CORO = ();
1864		2414
1865	# unload all extensions	2415	warn "removing commands";
1866	for (@exts) {	2416	%COMMAND = ();
		2417
		2418	warn "removing ext commands";
		2419	%EXTCMD = ();
		2420
		2421	warn "unloading/nuking all extensions";
		2422	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2423	warn "... unloading $pkg";
1868	unload_extension $_;	2424
		2425	if (my $cb = $pkg->can ("unload")) {
		2426	eval {
		2427	$cb->($pkg);
		2428	1
		2429	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2430	}
1870		2431
		2432	warn "... nuking $pkg";
		2433	Symbol::delete_package $pkg;
		2434	}
		2435
1871	# unload all modules loaded from $LIBDIR	2436	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2437	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2438	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2439
1875	warn "removing <$k>";	2440	warn "... unloading $k";
1876	delete $INC{$k};	2441	delete $INC{$k};
1877		2442
1878	$k =~ s/\.pm$//;	2443	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2444	$k =~ s/\//::/g;
1880		2445
…		…
1883	}	2448	}
1884		2449
1885	Symbol::delete_package $k;	2450	Symbol::delete_package $k;
1886	}	2451	}
1887		2452
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2453	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2454	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2455	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2456
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2457	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2458	delete $INC{"cf.pm"};
1901		2459
1902	# don't, removes xs symbols, too,	2460	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2461	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2462	#Symbol::delete_package __PACKAGE__;
1905		2463
1906	# reload cf.pm	2464	warn "unload completed, starting to reload now";
		2465
1907	warn "reloading cf.pm";	2466	warn "reloading cf.pm";
1908	require cf;	2467	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2468	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2469
1911	# load config and database again	2470	warn "loading config and database again";
1912	cf::cfg_load;	2471	cf::cfg_load;
1913	cf::db_load;
1914		2472
1915	# load extensions
1916	warn "load extensions";	2473	warn "loading extensions";
1917	cf::load_extensions;	2474	cf::load_extensions;
1918		2475
1919	# reattach attachments to objects	2476	warn "reattaching attachments to objects/players";
1920	warn "reattach";	2477	_global_reattach; # objects, sockets
1921	_global_reattach;	2478	warn "reattaching attachments to maps";
1922	};	2479	reattach $_ for values %MAP;
		2480	warn "reattaching attachments to players";
		2481	reattach $_ for values %PLAYER;
1923		2482
1924	if ($@) {	2483	warn "loading reloadable resources";
		2484	init_resources;
		2485
		2486	warn "leaving sync_job";
		2487
		2488	1
		2489	} or do {
1925	warn $@;	2490	warn $@;
1926	warn "error while reloading, exiting.";	2491	warn "error while reloading, exiting.";
1927	exit 1;	2492	exit 1;
1928	}	2493	};
1929		2494
1930	warn "reloaded successfully";	2495	warn "reloaded";
1931	};	2496	};
1932		2497
1933	#############################################################################	2498	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2499
1978	register_command "reload" => sub {	2500	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2501	my ($who, $arg) = @_;
1980		2502
1981	if ($who->flag (FLAG_WIZ)) {	2503	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");	2504	$who->message ("reloading server.");
		2505
		2506	# doing reload synchronously and two reloads happen back-to-back,
		2507	# coro crashes during coro_state_free->destroy here.
		2508
		2509	$RELOAD_WATCHER ||= Event->timer (
		2510	reentrant => 0,
		2511	after => 0,
		2512	data => WF_AUTOCANCEL,
		2513	cb => sub {
1983	reload;	2514	reload;
1984	$who->message ("end of reload.");	2515	undef $RELOAD_WATCHER;
		2516	},
		2517	);
1985	}	2518	}
1986	};	2519	};
1987		2520
1988	unshift @INC, $LIBDIR;	2521	unshift @INC, $LIBDIR;
		2522
		2523	my $bug_warning = 0;
1989		2524
1990	$TICK_WATCHER = Event->timer (	2525	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2526	reentrant => 0,
		2527	parked => 1,
1992	prio => 0,	2528	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2529	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2530	data => WF_AUTOCANCEL,
1995	cb => sub {	2531	cb => sub {
1996	unless ($FREEZE) {	2532	if ($Coro::current != $Coro::main) {
		2533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2534	unless ++$bug_warning > 10;
		2535	return;
		2536	}
		2537
		2538	$NOW = Event::time;
		2539
1997	cf::server_tick; # one server iteration	2540	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2541	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	2542	$NEXT_TICK += $TICK;
		2543
		2544	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2545	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2546	Coro::async_pool {
		2547	write_runtime
		2548	or warn "ERROR: unable to write runtime file: $!";
		2549	};
		2550	}
		2551
		2552	$WAIT_FOR_TICK->broadcast;
		2553	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2554
		2555	# my $AFTER = Event::time;
		2556	# warn $AFTER - $NOW;#d#
2002		2557
2003	# if we are delayed by four ticks or more, skip them all	2558	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2559	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2560
2006	$TICK_WATCHER->at ($NEXT_TICK);	2561	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2562	$TICK_WATCHER->start;
2008	},	2563	},
2009	);	2564	);
2010		2565
		2566	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2567	BDB::max_poll_time $TICK * 0.1;
2012		2568	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2569	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2570	fd => BDB::poll_fileno,
2015	poll => 'r',	2571	poll => 'r',
2016	prio => 5,	2572	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	2573	data => WF_AUTOCANCEL,
2023	after => 0,	2574	cb => \&BDB::poll_cb,
2024	interval => 10,	2575	);
2025	cb => sub {	2576	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	2577
2027	write_runtime	2578	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	2579	my $status;
		2580	my $current = $Coro::current;
		2581	(
		2582	sub {
		2583	$status = $!;
		2584	$current->ready; undef $current;
		2585	},
		2586	sub {
		2587	Coro::schedule while defined $current;
		2588	$! = $status;
		2589	},
		2590	)
		2591	};
		2592
		2593	unless ($DB_ENV) {
		2594	$DB_ENV = BDB::db_env_create;
		2595
		2596	cf::sync_job {
		2597	eval {
		2598	BDB::db_env_open
		2599	$DB_ENV,
		2600	$BDB_ENV_DIR,
		2601	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2602	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2603	0666;
		2604
		2605	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2606
		2607	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2608	$DB_ENV->set_lk_detect;
		2609	};
		2610
		2611	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	2612	};
2030	},	2613	}
2031	);	2614	}
		2615
		2616	{
		2617	IO::AIO::min_parallel 8;
		2618
		2619	undef $Coro::AIO::WATCHER;
		2620	IO::AIO::max_poll_time $TICK * 0.1;
		2621	$AIO_POLL_WATCHER = Event->io (
		2622	reentrant => 0,
		2623	data => WF_AUTOCANCEL,
		2624	fd => IO::AIO::poll_fileno,
		2625	poll => 'r',
		2626	prio => 6,
		2627	cb => \&IO::AIO::poll_cb,
		2628	);
		2629	}
		2630
		2631	END { cf::emergency_save }
2032		2632
2033	1	2633	1
2034		2634

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