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

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
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 cf::player::list_logins
		1060
		1061	Returns am arrayref of all valid playernames in the system, can take a
		1062	while and may block, so not sync_job-capable, ever.
		1063
		1064	=cut
		1065
		1066	sub list_logins {
		1067	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1068	or return [];
		1069
		1070	my @logins;
		1071
		1072	for my $login (@$dirs) {
		1073	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1074	aio_read $fh, 0, 512, my $buf, 0 or next;
		1075	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1076
		1077	utf8::decode $login;
		1078	push @logins, $login;
		1079	}
		1080
		1081	\@logins
		1082	}
		1083
		1084	=item $player->maps
		1085
		1086	Returns an arrayref of map paths that are private for this
		1087	player. May block.
		1088
		1089	=cut
		1090
		1091	sub maps($) {
		1092	my ($pl) = @_;
		1093
		1094	$pl = ref $pl ? $pl->ob->name : $pl;
		1095
		1096	my $files = aio_readdir playerdir $pl
		1097	or return;
		1098
		1099	my @paths;
		1100
		1101	for (@$files) {
		1102	utf8::decode $_;
		1103	next if /\.(?:pl|pst)$/;
		1104	next unless /^$PATH_SEP/o;
		1105
		1106	push @paths, cf::map::normalise "~$pl/$_";
		1107	}
		1108
		1109	\@paths
1019	}	1110	}
1020		1111
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1112	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1113
1023	Sends an ext reply to the player.	1114	Sends an ext reply to the player.
1024		1115
1025	=cut	1116	=cut
1026		1117
1027	sub cf::player::ext_reply($$$%) {	1118	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1119	my ($self, $id, %msg) = @_;
1029		1120
1030	$msg{msgid} = $id;	1121	$msg{msgid} = $id;
1031		1122
1032	$self->send ("ext " . to_json \%msg);	1123	$self->send ("ext " . cf::to_json \%msg);
1033	}	1124	}
		1125
		1126	package cf;
1034		1127
1035	=back	1128	=back
1036		1129
1037		1130
1038	=head3 cf::map	1131	=head3 cf::map
…		…
1044	package cf::map;	1137	package cf::map;
1045		1138
1046	use Fcntl;	1139	use Fcntl;
1047	use Coro::AIO;	1140	use Coro::AIO;
1048		1141
		1142	use overload
		1143	'""' => \&as_string,
		1144	fallback => 1;
		1145
1049	our $MAX_RESET = 7200;	1146	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1147	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1148
1054	sub generate_random_map {	1149	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1150	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1151	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1152	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1153	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1154	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1155	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1156	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1157	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1158	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1159	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1160	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1161	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1162	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1163	(cf::region::find $rmp->{region}), $rmp->{custom}
		1164	)
		1165	}
		1166
		1167	=item cf::map->register ($regex, $prio)
		1168
		1169	Register a handler for the map path matching the given regex at the
		1170	givne priority (higher is better, built-in handlers have priority 0, the
		1171	default).
		1172
		1173	=cut
		1174
		1175	sub register {
		1176	my (undef, $regex, $prio) = @_;
		1177	my $pkg = caller;
		1178
		1179	no strict;
		1180	push @{"$pkg\::ISA"}, __PACKAGE__;
		1181
		1182	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1183	}
		1184
		1185	# also paths starting with '/'
		1186	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1187
		1188	sub thawer_merge {
		1189	my ($self, $merge) = @_;
		1190
		1191	# we have to keep some variables in memory intact
		1192	local $self->{path};
		1193	local $self->{load_path};
		1194	local $self->{deny_save};
		1195	local $self->{deny_reset};
		1196
		1197	$self->SUPER::thawer_merge ($merge);
		1198	}
		1199
		1200	sub normalise {
		1201	my ($path, $base) = @_;
		1202
		1203	$path = "$path"; # make sure its a string
		1204
		1205	$path =~ s/\.map$//;
		1206
		1207	# map plan:
		1208	#
		1209	# /! non-realised random map exit (special hack!)
		1210	# {... are special paths that are not being touched
		1211	# ?xxx/... are special absolute paths
		1212	# ?random/... random maps
		1213	# /... normal maps
		1214	# ~user/... per-player map of a specific user
		1215
		1216	$path =~ s/$PATH_SEP/\//go;
		1217
		1218	# treat it as relative path if it starts with
		1219	# something that looks reasonable
		1220	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1221	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1222
		1223	$base =~ s{[^/]+/?$}{};
		1224	$path = "$base/$path";
		1225	}
		1226
		1227	for ($path) {
		1228	redo if s{//}{/};
		1229	redo if s{/\.?/}{/};
		1230	redo if s{/[^/]+/\.\./}{/};
		1231	}
		1232
		1233	$path
		1234	}
		1235
		1236	sub new_from_path {
		1237	my (undef, $path, $base) = @_;
		1238
		1239	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1240
		1241	$path = normalise $path, $base;
		1242
		1243	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1244	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1245	my $self = bless cf::map::new, $pkg;
		1246	$self->{path} = $path; $self->path ($path);
		1247	$self->init; # pass $1 etc.
		1248	return $self;
		1249	}
		1250	}
		1251
		1252	Carp::carp "unable to resolve path '$path' (base '$base').";
		1253	()
		1254	}
		1255
		1256	sub init {
		1257	my ($self) = @_;
		1258
		1259	$self
		1260	}
		1261
		1262	sub as_string {
		1263	my ($self) = @_;
		1264
		1265	"$self->{path}"
		1266	}
		1267
		1268	# the displayed name, this is a one way mapping
		1269	sub visible_name {
		1270	&as_string
		1271	}
		1272
		1273	# the original (read-only) location
		1274	sub load_path {
		1275	my ($self) = @_;
		1276
		1277	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1278	}
		1279
		1280	# the temporary/swap location
		1281	sub save_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1286	}
		1287
		1288	# the unique path, undef == no special unique path
		1289	sub uniq_path {
		1290	my ($self) = @_;
		1291
		1292	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1293	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1294	}
1072		1295
1073	# and all this just because we cannot iterate over	1296	# and all this just because we cannot iterate over
1074	# all maps in C++...	1297	# all maps in C++...
1075	sub change_all_map_light {	1298	sub change_all_map_light {
1076	my ($change) = @_;	1299	my ($change) = @_;
1077		1300
1078	$_->change_map_light ($change) for values %cf::MAP;	1301	$_->change_map_light ($change)
		1302	for grep $_->outdoor, values %cf::MAP;
1079	}	1303	}
1080		1304
		1305	sub unlink_save {
		1306	my ($self) = @_;
		1307
		1308	utf8::encode (my $save = $self->save_path);
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1311	}
		1312
1081	sub try_load_header($) {	1313	sub load_header_from($) {
1082	my ($path) = @_;	1314	my ($self, $path) = @_;
1083		1315
1084	utf8::encode $path;	1316	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1317	#aio_open $path, O_RDONLY, 0
		1318	# or return;
		1319
		1320	$self->_load_header ($path)
1086	or return;	1321	or return;
1087		1322
1088	my $map = cf::map::new	1323	$self->{load_path} = $path;
		1324
		1325	1
		1326	}
		1327
		1328	sub load_header_orig {
		1329	my ($self) = @_;
		1330
		1331	$self->load_header_from ($self->load_path)
		1332	}
		1333
		1334	sub load_header_temp {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->save_path)
		1338	}
		1339
		1340	sub prepare_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->last_access ((delete $self->{last_access})
		1344	|| $cf::RUNTIME); #d#
		1345	# safety
		1346	$self->{instantiate_time} = $cf::RUNTIME
		1347	if $self->{instantiate_time} > $cf::RUNTIME;
		1348	}
		1349
		1350	sub prepare_orig {
		1351	my ($self) = @_;
		1352
		1353	$self->{load_original} = 1;
		1354	$self->{instantiate_time} = $cf::RUNTIME;
		1355	$self->last_access ($cf::RUNTIME);
		1356	$self->instantiate;
		1357	}
		1358
		1359	sub load_header {
		1360	my ($self) = @_;
		1361
		1362	if ($self->load_header_temp) {
		1363	$self->prepare_temp;
		1364	} else {
		1365	$self->load_header_orig
1089	or return;	1366	or return;
		1367	$self->prepare_orig;
		1368	}
1090		1369
1091	$map->load_header ($path)	1370	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1371	}
1099		1372
		1373	sub find;
1100	sub find_map {	1374	sub find {
1101	my ($path, $origin) = @_;	1375	my ($path, $origin) = @_;
1102		1376
1103	#warn "find_map<$path,$origin>\n";#d#	1377	$path = normalise $path, $origin && $origin->path;
1104		1378
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1379	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1380
1108	$cf::MAP{$key} || do {	1381	$cf::MAP{$path} || do {
1109	# do it the slow way	1382	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1383	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;	1384	or return;
1124		1385
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);	1386	$map->{last_save} = $cf::RUNTIME;
1135		1387
1136	$map->reset if $map->should_reset;	1388	$map->load_header
		1389	or return;
1137		1390
		1391	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1392	# doing this can freeze the server in a sync job, obviously
		1393	#$cf::WAIT_FOR_TICK->wait;
		1394	$map->reset;
		1395	undef $guard;
		1396	return find $path;
		1397	}
		1398
1138	$cf::MAP{$key} = $map	1399	$cf::MAP{$path} = $map
1139	}	1400	}
1140	}	1401	}
		1402
		1403	sub pre_load { }
		1404	sub post_load { }
1141		1405
1142	sub load {	1406	sub load {
1143	my ($self) = @_;	1407	my ($self) = @_;
1144		1408
		1409	local $self->{deny_reset} = 1; # loading can take a long time
		1410
		1411	my $path = $self->{path};
		1412	my $guard = cf::lock_acquire "map_load:$path";
		1413
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1414	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1415
1147	$self->in_memory (cf::MAP_LOADING);	1416	$self->in_memory (cf::MAP_LOADING);
1148		1417
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1418	$self->alloc;
		1419
		1420	$self->pre_load;
		1421
1152	$self->load_objects ($self->{load_path}, 1)	1422	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1423	or return;
1154		1424
		1425	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1426	if delete $self->{load_original};
		1427
1155	if (my $uniq = $path->uniq_path) {	1428	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1429	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1430	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1431	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1432	$self->_load_objects ($uniq, 0);
1160	}	1433	}
1161	}	1434	}
		1435
		1436	Coro::cede;
1162		1437
1163	# now do the right thing for maps	1438	# now do the right thing for maps
1164	$self->link_multipart_objects;	1439	$self->link_multipart_objects;
1165		1440
1166	if ($self->{path}->is_style_map) {	1441	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1442	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1443	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1444	$self->update_buttons;
		1445	Coro::cede;
1173	$self->set_darkness_map;	1446	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1447	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1448	unless $self->difficulty;
		1449	Coro::cede;
1176	$self->activate;	1450	$self->activate;
1177	}	1451	}
1178		1452
		1453	$self->post_load;
		1454
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1455	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1456	}
1181		1457
1182	sub load_map_sync {	1458	sub customise_for {
		1459	my ($self, $ob) = @_;
		1460
		1461	return find "~" . $ob->name . "/" . $self->{path}
		1462	if $self->per_player;
		1463
		1464	$self
		1465	}
		1466
		1467	# find and load all maps in the 3x3 area around a map
		1468	sub load_diag {
		1469	my ($map) = @_;
		1470
		1471	my @diag; # diagonal neighbours
		1472
		1473	for (0 .. 3) {
		1474	my $neigh = $map->tile_path ($_)
		1475	or next;
		1476	$neigh = find $neigh, $map
		1477	or next;
		1478	$neigh->load;
		1479
		1480	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1481	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1482	}
		1483
		1484	for (@diag) {
		1485	my $neigh = find @$_
		1486	or next;
		1487	$neigh->load;
		1488	}
		1489	}
		1490
		1491	sub find_sync {
1183	my ($path, $origin) = @_;	1492	my ($path, $origin) = @_;
1184		1493
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1494	cf::sync_job { find $path, $origin }
		1495	}
1186		1496
1187	cf::sync_job {	1497	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1498	my ($map) = @_;
1189	or return;	1499
		1500	cf::sync_job { $map->load };
		1501	}
		1502
		1503	our %MAP_PREFETCH;
		1504	our $MAP_PREFETCHER = undef;
		1505
		1506	sub find_async {
		1507	my ($path, $origin) = @_;
		1508
		1509	$path = normalise $path, $origin && $origin->{path};
		1510
		1511	if (my $map = $cf::MAP{$path}) {
		1512	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1513	}
		1514
		1515	undef $MAP_PREFETCH{$path};
		1516	$MAP_PREFETCHER ||= cf::async {
		1517	while (%MAP_PREFETCH) {
		1518	for my $path (keys %MAP_PREFETCH) {
		1519	my $map = find $path
		1520	or next;
1190	$map->load;	1521	$map->load;
1191	$map	1522
		1523	delete $MAP_PREFETCH{$path};
		1524	}
		1525	}
		1526	undef $MAP_PREFETCHER;
1192	}	1527	};
		1528	$MAP_PREFETCHER->prio (6);
		1529
		1530	()
1193	}	1531	}
1194		1532
1195	sub save {	1533	sub save {
1196	my ($self) = @_;	1534	my ($self) = @_;
1197		1535
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1536	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1537
1201	$self->{last_save} = $cf::RUNTIME;	1538	$self->{last_save} = $cf::RUNTIME;
1202		1539
1203	return unless $self->dirty;	1540	return unless $self->dirty;
1204		1541
		1542	my $save = $self->save_path; utf8::encode $save;
		1543	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1544
1205	$self->{load_path} = $save;	1545	$self->{load_path} = $save;
1206		1546
1207	return if $self->{deny_save};	1547	return if $self->{deny_save};
1208		1548
1209	warn "saving map ", $self->path;	1549	local $self->{last_access} = $self->last_access;#d#
		1550
		1551	cf::async {
		1552	$_->contr->save for $self->players;
		1553	};
1210		1554
1211	if ($uniq) {	1555	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1557	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1558	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1560	}
1217	}	1561	}
1218		1562
1219	sub swap_out {	1563	sub swap_out {
1220	my ($self) = @_;	1564	my ($self) = @_;
		1565
		1566	# save first because save cedes
		1567	$self->save;
		1568
		1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1570
1222	return if $self->players;	1571	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1572	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1573	return if $self->{deny_save};
1225		1574
1226	$self->save;
1227	$self->clear;	1575	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1576	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1577	}
1230		1578
		1579	sub reset_at {
		1580	my ($self) = @_;
		1581
		1582	# TODO: safety, remove and allow resettable per-player maps
		1583	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1584	return 1e99 if $self->{deny_reset};
		1585
		1586	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1587	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1588
		1589	$time + $to
		1590	}
		1591
1231	sub should_reset {	1592	sub should_reset {
1232	my ($map) = @_;	1593	my ($self) = @_;
1233		1594
1234	# TODO: safety, remove and allow resettable per-player maps	1595	$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	}	1596	}
1243		1597
1244	sub reset {	1598	sub reset {
1245	my ($self) = @_;	1599	my ($self) = @_;
1246		1600
		1601	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1602
1247	return if $self->players;	1603	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1604	return if $self->isa ("ext::map_per_player");#d#
1249		1605
1250	warn "resetting map ", $self->path;#d#	1606	warn "resetting map ", $self->path;#d#
1251		1607
1252	utf8::encode (my $save = $self->{path}->save_path);	1608	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1609
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1610	# need to save uniques path
		1611	unless ($self->{deny_save}) {
		1612	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1613
		1614	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1615	if $uniq;
		1616	}
		1617
		1618	delete $cf::MAP{$self->path};
		1619
		1620	$self->clear;
1255		1621
1256	$_->clear_links_to ($self) for values %cf::MAP;	1622	$_->clear_links_to ($self) for values %cf::MAP;
1257		1623
		1624	$self->unlink_save;
1258	$self->clear;	1625	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1626	}
1262		1627
1263	sub customise_for {	1628	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1629
1266	if ($map->per_player) {	1630	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1631	my ($self) = @_;
1268	}
1269		1632
1270	$map	1633	delete $cf::MAP{$self->path};
1271	}
1272		1634
1273	sub emergency_save {	1635	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1636
1276	warn "enter emergency map save\n";	1637	bless $self, "cf::map";
		1638	delete $self->{deny_reset};
		1639	$self->{deny_save} = 1;
		1640	$self->reset_timeout (1);
		1641	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1642
1278	cf::sync_job {	1643	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1644
1280	$_->save for values %cf::MAP;	1645	$self->reset; # polite request, might not happen
		1646	}
		1647
		1648	=item cf::map::unique_maps
		1649
		1650	Returns an arrayref of paths of all shared maps that have
		1651	instantiated unique items. May block.
		1652
		1653	=cut
		1654
		1655	sub unique_maps() {
		1656	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1657	or return;
		1658
		1659	my @paths;
		1660
		1661	for (@$files) {
		1662	utf8::decode $_;
		1663	next if /\.pst$/;
		1664	next unless /^$PATH_SEP/o;
		1665
		1666	push @paths, cf::map::normalise $_;
1281	};	1667	}
1282		1668
1283	warn "end emergency map save\n";	1669	\@paths
1284	}	1670	}
1285		1671
1286	package cf;	1672	package cf;
1287		1673
1288	=back	1674	=back
1289		1675
		1676	=head3 cf::object
		1677
		1678	=cut
		1679
		1680	package cf::object;
		1681
		1682	=over 4
		1683
		1684	=item $ob->inv_recursive
		1685
		1686	Returns the inventory of the object _and_ their inventories, recursively.
		1687
		1688	=cut
		1689
		1690	sub inv_recursive_;
		1691	sub inv_recursive_ {
		1692	map { $_, inv_recursive_ $_->inv } @_
		1693	}
		1694
		1695	sub inv_recursive {
		1696	inv_recursive_ inv $_[0]
		1697	}
		1698
		1699	package cf;
		1700
		1701	=back
1290		1702
1291	=head3 cf::object::player	1703	=head3 cf::object::player
1292		1704
1293	=over 4	1705	=over 4
1294		1706
…		…
1330	(ref $cf::CFG{"may_$access"}	1742	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1743	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1744	: $cf::CFG{"may_$access"})
1333	}	1745	}
1334		1746
		1747	=item $player_object->enter_link
		1748
		1749	Freezes the player and moves him/her to a special map (C<{link}>).
		1750
		1751	The player should be reasonably safe there for short amounts of time. You
		1752	I<MUST> call C<leave_link> as soon as possible, though.
		1753
		1754	Will never block.
		1755
		1756	=item $player_object->leave_link ($map, $x, $y)
		1757
		1758	Moves the player out of the special C<{link}> map onto the specified
		1759	map. If the map is not valid (or omitted), the player will be moved back
		1760	to the location he/she was before the call to C<enter_link>, or, if that
		1761	fails, to the emergency map position.
		1762
		1763	Might block.
		1764
		1765	=cut
		1766
		1767	sub link_map {
		1768	unless ($LINK_MAP) {
		1769	$LINK_MAP = cf::map::find "{link}"
		1770	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1771	$LINK_MAP->load;
		1772	}
		1773
		1774	$LINK_MAP
		1775	}
		1776
1335	sub cf::object::player::enter_link {	1777	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1778	my ($self) = @_;
1337		1779
1338	return if $self->map == $LINK_MAP;	1780	$self->deactivate_recursive;
1339		1781
		1782	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1783
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1784	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1785	if $self->map;
1342		1786
1343	$self->enter_map ($LINK_MAP, 20, 20);	1787	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1788	}
1346		1789
1347	sub cf::object::player::leave_link {	1790	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1791	my ($self, $map, $x, $y) = @_;
1349		1792
1350	my $link_pos = delete $self->{_link_pos};	1793	my $link_pos = delete $self->{_link_pos};
1351		1794
1352	unless ($map) {	1795	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1796	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1797	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1798	$map = cf::map::find $map;
1358		1799
1359	unless ($map) {	1800	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1801	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1802	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1803	or die "FATAL: cannot load emergency map\n";
1363	}	1804	}
1364	}	1805	}
1365		1806
1366	($x, $y) = (-1, -1)	1807	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1810	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1811	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1812	if $x <=0 && $y <= 0;
1372		1813
1373	$map->load;	1814	$map->load;
		1815	$map->load_diag;
1374		1816
		1817	return unless $self->contr->active;
1375	$self->activate_recursive;	1818	$self->activate_recursive;
		1819
		1820	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1821	$self->enter_map ($map, $x, $y);
1377	}	1822	}
1378		1823
		1824	cf::player->attach (
		1825	on_logout => sub {
		1826	my ($pl) = @_;
		1827
		1828	# abort map switching before logout
		1829	if ($pl->ob->{_link_pos}) {
		1830	cf::sync_job {
		1831	$pl->ob->leave_link
		1832	};
		1833	}
		1834	},
		1835	on_login => sub {
		1836	my ($pl) = @_;
		1837
		1838	# try to abort aborted map switching on player login :)
		1839	# should happen only on crashes
		1840	if ($pl->ob->{_link_pos}) {
		1841	$pl->ob->enter_link;
		1842	(async {
		1843	$pl->ob->reply (undef,
		1844	"There was an internal problem at your last logout, "
		1845	. "the server will try to bring you to your intended destination in a second.",
		1846	cf::NDI_RED);
		1847	# we need this sleep as the login has a concurrent enter_exit running
		1848	# and this sleep increases chances of the player not ending up in scorn
		1849	Coro::Timer::sleep 1;
		1850	$pl->ob->leave_link;
		1851	})->prio (2);
		1852	}
		1853	},
		1854	);
		1855
1379	=item $player_object->goto_map ($map, $x, $y)	1856	=item $player_object->goto ($path, $x, $y)
1380		1857
1381	=cut	1858	=cut
1382		1859
1383	sub cf::object::player::goto_map {	1860	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1861	my ($self, $path, $x, $y) = @_;
1385		1862
1386	$self->enter_link;	1863	$self->enter_link;
1387		1864
1388	(Coro::async {	1865	(async {
1389	$path = new cf::path $path;	1866	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1867	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1868	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1869	$map
		1870	} or
		1871	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1872
1397	$self->leave_link ($map, $x, $y);	1873	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1874	})->prio (1);
1399	}	1875	}
1400		1876
…		…
1404		1880
1405	sub parse_random_map_params {	1881	sub parse_random_map_params {
1406	my ($spec) = @_;	1882	my ($spec) = @_;
1407		1883
1408	my $rmp = { # defaults	1884	my $rmp = { # defaults
1409	xsize => 10,	1885	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1886	ysize => (cf::rndm 15, 40),
		1887	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1888	#layout => string,
1411	};	1889	};
1412		1890
1413	for (split /\n/, $spec) {	1891	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1892	my ($k, $v) = split /\s+/, $_, 2;
1415		1893
…		…
1419	$rmp	1897	$rmp
1420	}	1898	}
1421		1899
1422	sub prepare_random_map {	1900	sub prepare_random_map {
1423	my ($exit) = @_;	1901	my ($exit) = @_;
		1902
		1903	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1904
1425	# all this does is basically replace the /! path by	1905	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1906	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1907	# that depends on the exit object
1428		1908
1429	my $rmp = parse_random_map_params $exit->msg;	1909	my $rmp = parse_random_map_params $exit->msg;
1430		1910
1431	if ($exit->map) {	1911	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	1912	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	1913	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	1914	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	1915	$rmp->{origin_y} = $exit->y;
1436	}	1916	}
1437		1917
1438	$rmp->{random_seed} ||= $exit->random_seed;	1918	$rmp->{random_seed} ||= $exit->random_seed;
1439		1919
1440	my $data = cf::to_json $rmp;	1920	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1921	my $md5 = Digest::MD5::md5_hex $data;
		1922	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1923
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1924	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	1925	aio_write $fh, 0, (length $data), $data, 0;
		1926	undef $fh;
		1927	aio_rename "$meta~", $meta;
1445		1928
1446	$exit->slaying ("?random/$md5");	1929	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1930	$exit->msg (undef);
1448	}	1931	}
1449	}	1932	}
…		…
1451	sub cf::object::player::enter_exit {	1934	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	1935	my ($self, $exit) = @_;
1453		1936
1454	return unless $self->type == cf::PLAYER;	1937	return unless $self->type == cf::PLAYER;
1455		1938
		1939	if ($exit->slaying eq "/!") {
		1940	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1941	cf::sync_job { prepare_random_map $exit };
		1942	}
		1943
		1944	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1945	my $hp = $exit->stats->hp;
		1946	my $sp = $exit->stats->sp;
		1947
1456	$self->enter_link;	1948	$self->enter_link;
1457		1949
1458	(Coro::async {	1950	(async {
		1951	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1952	unless (eval {
1460		1953	$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		1954
1467	1;	1955	1;
1468	}) {	1956	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1957	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	1958	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	1959	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1960	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1961
1474	warn "ERROR in enter_exit: $@";	1962	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1963	$self->leave_link;
1476	}	1964	}
…		…
1527	on_reply => sub {	2015	on_reply => sub {
1528	my ($ns, $msg) = @_;	2016	my ($ns, $msg) = @_;
1529		2017
1530	# this weird shuffling is so that direct followup queries	2018	# this weird shuffling is so that direct followup queries
1531	# get handled first	2019	# get handled first
1532	my $queue = delete $ns->{query_queue};	2020	my $queue = delete $ns->{query_queue}
		2021	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2022
1534	(shift @$queue)->[1]->($msg);	2023	(shift @$queue)->[1]->($msg);
		2024	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2025
1536	push @{ $ns->{query_queue} }, @$queue;	2026	push @{ $ns->{query_queue} }, @$queue;
1537		2027
1538	if (@{ $ns->{query_queue} } == @$queue) {	2028	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2029	if (@$queue) {
…		…
1543	}	2033	}
1544	}	2034	}
1545	},	2035	},
1546	);	2036	);
1547		2037
1548	=item $client->coro (\&cb)	2038	=item $client->async (\&cb)
1549		2039
1550	Create a new coroutine, running the specified callback. The coroutine will	2040	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2041	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2042	or loss of connection).
1553		2043
1554	=cut	2044	=cut
1555		2045
1556	sub cf::client::coro {	2046	sub cf::client::async {
1557	my ($self, $cb) = @_;	2047	my ($self, $cb) = @_;
1558		2048
1559	my $coro; $coro = async {	2049	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2050
1566	$coro->on_destroy (sub {	2051	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2052	delete $self->{_coro}{$coro+0};
1568	});	2053	});
1569		2054
…		…
1705	The parameter C<$family> should best start with the name of the extension	2190	The parameter C<$family> should best start with the name of the extension
1706	using it, it should be unique.	2191	using it, it should be unique.
1707		2192
1708	=over 4	2193	=over 4
1709		2194
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	2195	=item $value = cf::db_get $family => $key
1717		2196
1718	Returns a single value from the database	2197	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		2198
1725	=item cf::db_put $family => $key => $value	2199	=item cf::db_put $family => $key => $value
1726		2200
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2201	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		2202
1738	=cut	2203	=cut
1739		2204
1740	our $DB;	2205	our $DB;
1741		2206
1742	{	2207	sub db_init {
		2208	unless ($DB) {
		2209	$DB = BDB::db_create $DB_ENV;
		2210
		2211	cf::sync_job {
		2212	eval {
		2213	$DB->set_flags (BDB::CHKSUM);
		2214
		2215	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2216	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2217	cf::cleanup "db_open(db): $!" if $!;
		2218	};
		2219	cf::cleanup "db_open(db): $@" if $@;
		2220	};
		2221
1743	my $path = cf::localdir . "/database.pst";	2222	my $path = cf::localdir . "/database.pst";
		2223	if (stat $path) {
		2224	cf::sync_job {
		2225	my $pst = Storable::retrieve $path;
1744		2226
1745	sub db_load() {	2227	cf::db_put (board => data => $pst->{board});
1746	warn "loading database $path\n";#d# remove later	2228	cf::db_put (guildrules => data => $pst->{guildrules});
1747	$DB = stat $path ? Storable::retrieve $path : { };	2229	cf::db_put (rent => balance => $pst->{rent}{balance});
1748	}	2230	BDB::db_env_txn_checkpoint $DB_ENV;
1749		2231
1750	my $pid;	2232	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	}	2233	};
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	},	2234	}
1799	);	2235	}
		2236	}
		2237
		2238	sub db_get($$) {
		2239	my $key = "$_[0]/$_[1]";
		2240
		2241	cf::sync_job {
		2242	BDB::db_get $DB, undef, $key, my $data;
		2243
		2244	$! ? ()
		2245	: Compress::LZF::sthaw $data
		2246	}
		2247	}
		2248
		2249	sub db_put($$$) {
		2250	BDB::dbreq_pri 4;
		2251	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1800	}	2252	}
1801		2253
1802	#############################################################################	2254	#############################################################################
1803	# the server's main()	2255	# the server's init and main functions
		2256
		2257	sub init_resources {
		2258	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2259	or die "unable to load regions file\n";#d#
		2260	}
1804		2261
1805	sub cfg_load {	2262	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2263	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2264	or return;
1808		2265
1809	local $/;	2266	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2267	*CFG = YAML::Syck::Load <$fh>;
		2268
		2269	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2270
		2271	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2272	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2273
		2274	if (exists $CFG{mlockall}) {
		2275	eval {
		2276	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2277	and die "WARNING: m(un)lockall failed: $!\n";
		2278	};
		2279	warn $@ if $@;
		2280	}
		2281	}
		2282
		2283	sub init {
		2284	init_resources;
1811	}	2285	}
1812		2286
1813	sub main {	2287	sub main {
1814	# we must not ever block the main coroutine	2288	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2289	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2290	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2291	(async {
1818	Event::one_event;	2292	Event::one_event;
1819	})->();	2293	})->prio (Coro::PRIO_MAX);
1820	};	2294	};
1821		2295
1822	cfg_load;	2296	cfg_load;
1823	db_load;	2297	db_init;
1824	load_extensions;	2298	load_extensions;
		2299
		2300	$TICK_WATCHER->start;
1825	Event::loop;	2301	Event::loop;
1826	}	2302	}
1827		2303
1828	#############################################################################	2304	#############################################################################
1829	# initialisation	2305	# initialisation and cleanup
1830		2306
		2307	# install some emergency cleanup handlers
		2308	BEGIN {
		2309	for my $signal (qw(INT HUP TERM)) {
		2310	Event->signal (
		2311	reentrant => 0,
		2312	data => WF_AUTOCANCEL,
		2313	signal => $signal,
		2314	prio => 0,
		2315	cb => sub {
		2316	cf::cleanup "SIG$signal";
		2317	},
		2318	);
		2319	}
		2320	}
		2321
		2322	sub emergency_save() {
		2323	my $freeze_guard = cf::freeze_mainloop;
		2324
		2325	warn "enter emergency perl save\n";
		2326
		2327	cf::sync_job {
		2328	# use a peculiar iteration method to avoid tripping on perl
		2329	# refcount bugs in for. also avoids problems with players
		2330	# and maps saved/destroyed asynchronously.
		2331	warn "begin emergency player save\n";
		2332	for my $login (keys %cf::PLAYER) {
		2333	my $pl = $cf::PLAYER{$login} or next;
		2334	$pl->valid or next;
		2335	$pl->save;
		2336	}
		2337	warn "end emergency player save\n";
		2338
		2339	warn "begin emergency map save\n";
		2340	for my $path (keys %cf::MAP) {
		2341	my $map = $cf::MAP{$path} or next;
		2342	$map->valid or next;
		2343	$map->save;
		2344	}
		2345	warn "end emergency map save\n";
		2346
		2347	warn "begin emergency database checkpoint\n";
		2348	BDB::db_env_txn_checkpoint $DB_ENV;
		2349	warn "end emergency database checkpoint\n";
		2350	};
		2351
		2352	warn "leave emergency perl save\n";
		2353	}
		2354
		2355	sub post_cleanup {
		2356	my ($make_core) = @_;
		2357
		2358	warn Carp::longmess "post_cleanup backtrace"
		2359	if $make_core;
		2360	}
		2361
1831	sub perl_reload() {	2362	sub reload() {
1832	# can/must only be called in main	2363	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2364	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2365	warn "can only reload from main coroutine";
1835	return;	2366	return;
1836	}	2367	}
1837		2368
1838	warn "reloading...";	2369	warn "reloading...";
1839		2370
1840	local $FREEZE = 1;	2371	warn "entering sync_job";
		2372
		2373	cf::sync_job {
		2374	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2375	cf::emergency_save;
		2376	cf::write_runtime; # external watchdog should not bark
1842		2377
1843	eval {	2378	warn "syncing database to disk";
		2379	BDB::db_env_txn_checkpoint $DB_ENV;
		2380
1844	# if anything goes wrong in here, we should simply crash as we already saved	2381	# if anything goes wrong in here, we should simply crash as we already saved
1845		2382
1846	# cancel all watchers	2383	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2384	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2385	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2386	}
1850		2387
		2388	warn "flushing outstanding aio requests";
		2389	for (;;) {
		2390	BDB::flush;
		2391	IO::AIO::flush;
		2392	Coro::cede;
		2393	last unless IO::AIO::nreqs || BDB::nreqs;
		2394	warn "iterate...";
		2395	}
		2396
1851	# cancel all extension coros	2397	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2398	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2399	%EXT_CORO = ();
1854		2400
1855	# unload all extensions	2401	warn "removing commands";
1856	for (@exts) {	2402	%COMMAND = ();
		2403
		2404	warn "removing ext commands";
		2405	%EXTCMD = ();
		2406
		2407	warn "unloading/nuking all extensions";
		2408	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2409	warn "... unloading $pkg";
1858	unload_extension $_;	2410
		2411	if (my $cb = $pkg->can ("unload")) {
		2412	eval {
		2413	$cb->($pkg);
		2414	1
		2415	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2416	}
1860		2417
		2418	warn "... nuking $pkg";
		2419	Symbol::delete_package $pkg;
		2420	}
		2421
1861	# unload all modules loaded from $LIBDIR	2422	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2423	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2424	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2425
1865	warn "removing <$k>";	2426	warn "... unloading $k";
1866	delete $INC{$k};	2427	delete $INC{$k};
1867		2428
1868	$k =~ s/\.pm$//;	2429	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2430	$k =~ s/\//::/g;
1870		2431
…		…
1873	}	2434	}
1874		2435
1875	Symbol::delete_package $k;	2436	Symbol::delete_package $k;
1876	}	2437	}
1877		2438
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2439	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2440	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2441	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2442
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2443	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2444	delete $INC{"cf.pm"};
1891		2445
1892	# don't, removes xs symbols, too,	2446	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2447	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2448	#Symbol::delete_package __PACKAGE__;
1895		2449
1896	# reload cf.pm	2450	warn "unload completed, starting to reload now";
		2451
1897	warn "reloading cf.pm";	2452	warn "reloading cf.pm";
1898	require cf;	2453	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2454	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2455
1901	# load config and database again	2456	warn "loading config and database again";
1902	cf::cfg_load;	2457	cf::cfg_load;
1903	cf::db_load;
1904		2458
1905	# load extensions
1906	warn "load extensions";	2459	warn "loading extensions";
1907	cf::load_extensions;	2460	cf::load_extensions;
1908		2461
1909	# reattach attachments to objects	2462	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2463	_global_reattach;
1912	};	2464	warn "reattaching attachments to maps";
		2465	reattach $_ for values %MAP;
1913		2466
1914	if ($@) {	2467	warn "loading reloadable resources";
		2468	init_resources;
		2469
		2470	warn "leaving sync_job";
		2471
		2472	1
		2473	} or do {
1915	warn $@;	2474	warn $@;
1916	warn "error while reloading, exiting.";	2475	warn "error while reloading, exiting.";
1917	exit 1;	2476	exit 1;
1918	}	2477	};
1919		2478
1920	warn "reloaded successfully";	2479	warn "reloaded";
1921	};	2480	};
1922		2481
1923	#############################################################################	2482	our $RELOAD_WATCHER; # used only during reload
1924		2483
1925	unless ($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} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2484	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2485	my ($who, $arg) = @_;
1970		2486
1971	if ($who->flag (FLAG_WIZ)) {	2487	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2488	$who->message ("reloading server.");
		2489
		2490	# doing reload synchronously and two reloads happen back-to-back,
		2491	# coro crashes during coro_state_free->destroy here.
		2492
		2493	$RELOAD_WATCHER ||= Event->timer (
		2494	reentrant => 0,
		2495	after => 0,
		2496	data => WF_AUTOCANCEL,
		2497	cb => sub {
		2498	reload;
		2499	undef $RELOAD_WATCHER;
		2500	},
		2501	);
1975	}	2502	}
1976	};	2503	};
1977		2504
1978	unshift @INC, $LIBDIR;	2505	unshift @INC, $LIBDIR;
		2506
		2507	my $bug_warning = 0;
1979		2508
1980	$TICK_WATCHER = Event->timer (	2509	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2510	reentrant => 0,
		2511	parked => 1,
1982	prio => 0,	2512	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2513	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2514	data => WF_AUTOCANCEL,
1985	cb => sub {	2515	cb => sub {
1986	unless ($FREEZE) {	2516	if ($Coro::current != $Coro::main) {
		2517	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2518	unless ++$bug_warning > 10;
		2519	return;
		2520	}
		2521
		2522	$NOW = Event::time;
		2523
1987	cf::server_tick; # one server iteration	2524	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2525	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2526	$NEXT_TICK += $TICK;
		2527
		2528	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2529	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2530	Coro::async_pool {
		2531	write_runtime
		2532	or warn "ERROR: unable to write runtime file: $!";
		2533	};
		2534	}
		2535
		2536	$WAIT_FOR_TICK->broadcast;
		2537	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2538
		2539	# my $AFTER = Event::time;
		2540	# warn $AFTER - $NOW;#d#
1992		2541
1993	# if we are delayed by four ticks or more, skip them all	2542	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2543	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2544
1996	$TICK_WATCHER->at ($NEXT_TICK);	2545	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2546	$TICK_WATCHER->start;
1998	},	2547	},
1999	);	2548	);
2000		2549
		2550	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2551	BDB::max_poll_time $TICK * 0.1;
2002		2552	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2553	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2554	fd => BDB::poll_fileno,
2005	poll => 'r',	2555	poll => 'r',
2006	prio => 5,	2556	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2557	data => WF_AUTOCANCEL,
2013	after => 0,	2558	cb => \&BDB::poll_cb,
2014	interval => 10,	2559	);
2015	cb => sub {	2560	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2561
2017	write_runtime	2562	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2563	my $status;
		2564	my $current = $Coro::current;
		2565	(
		2566	sub {
		2567	$status = $!;
		2568	$current->ready; undef $current;
		2569	},
		2570	sub {
		2571	Coro::schedule while defined $current;
		2572	$! = $status;
		2573	},
		2574	)
		2575	};
		2576
		2577	unless ($DB_ENV) {
		2578	$DB_ENV = BDB::db_env_create;
		2579
		2580	cf::sync_job {
		2581	eval {
		2582	BDB::db_env_open
		2583	$DB_ENV,
		2584	$BDB_ENV_DIR,
		2585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2587	0666;
		2588
		2589	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2590
		2591	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2592	$DB_ENV->set_lk_detect;
		2593	};
		2594
		2595	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2596	};
2020	},	2597	}
2021	);	2598	}
		2599
		2600	{
		2601	IO::AIO::min_parallel 8;
		2602
		2603	undef $Coro::AIO::WATCHER;
		2604	IO::AIO::max_poll_time $TICK * 0.1;
		2605	$AIO_POLL_WATCHER = Event->io (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	fd => IO::AIO::poll_fileno,
		2609	poll => 'r',
		2610	prio => 6,
		2611	cb => \&IO::AIO::poll_cb,
		2612	);
		2613	}
		2614
		2615	END { cf::emergency_save }
2022		2616
2023	1	2617	1
2024		2618

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