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/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.135 by root, Thu Jan 4 20:29:46 2007 UTC vs.
Revision 1.209 by root, Mon Feb 12 01:25:55 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 $WRITE_RUNTIME_WATCHER;
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 $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	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
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
221	# wake up all waiters, to be on the safe side	268	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	269	$_->ready for @{ delete $LOCK{$key} };
223	}	270	}
224	}	271	}
225		272
226	=item cf::async { BLOCK }
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {	273	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
244		275
245	my $guard = Coro::guard { $TICK_WATCHER->start };	276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	$WRITE_RUNTIME_WATCHER->start;
		279	};
		280	$WRITE_RUNTIME_WATCHER->stop;
246	$TICK_WATCHER->stop;	281	$TICK_WATCHER->stop;
247	$guard	282	$guard
248	}	283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
249		294
250	=item cf::sync_job { BLOCK }	295	=item cf::sync_job { BLOCK }
251		296
252	The design of crossfire+ requires that the main coro ($Coro::main) is	297	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	298	always able to handle events or runnable, as crossfire+ is only partly
…		…
272	my $freeze_guard = freeze_mainloop;	317	my $freeze_guard = freeze_mainloop;
273		318
274	my $busy = 1;	319	my $busy = 1;
275	my @res;	320	my @res;
276		321
277	(Coro::async {	322	(async {
278	@res = eval { $job->() };	323	@res = eval { $job->() };
279	warn $@ if $@;	324	warn $@ if $@;
280	undef $busy;	325	undef $busy;
281	})->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
282		327
283	while ($busy) {	328	while ($busy) {
284	Coro::cede_notself;	329	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	330	}
287		331
288	wantarray ? @res : $res[0]	332	wantarray ? @res : $res[0]
289	} else {	333	} else {
290	# we are in another coroutine, how wonderful, everything just works	334	# we are in another coroutine, how wonderful, everything just works
291		335
292	$job->()	336	$job->()
293	}	337	}
294	}	338	}
295		339
296	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
297		341
298	Creates and returns a new coro. This coro is automcatially being canceled	342	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
300		344
301	=cut	345	=cut
302		346
303	sub coro(&) {	347	sub async_ext(&) {
304	my $cb = shift;	348	my $cb = shift;
305		349
306	my $coro = &cf::async ($cb);	350	my $coro = &Coro::async ($cb);
307		351
308	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
310	});	354	});
311	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
…		…
317	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
318		362
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	364	or return;
321		365
		366	my $value = $cf::RUNTIME + 90 + 10;
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	371	and return;
325		372
		373	# always fsync - this file is important
326	aio_fsync $fh	374	aio_fsync $fh
327	and return;	375	and return;
328		376
329	close $fh	377	close $fh
330	or return;	378	or return;
…		…
336	}	384	}
337		385
338	=back	386	=back
339		387
340	=cut	388	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		389
462	#############################################################################	390	#############################################################################
463		391
464	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
465		393
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	520	our @CB_MAP = ();
593		521
594	my %attachment;	522	my %attachment;
595		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
596	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
598		532
599	use sort 'stable';	533	use sort 'stable';
600		534
…		…
771	# object support	705	# object support
772		706
773	sub reattach {	707	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		712
777	my $registry = $obj->registry;	713	my $registry = $obj->registry;
778		714
779	@$registry = ();	715	@$registry = ();
780		716
…		…
827	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
828		764
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	769	close $fh;
834		770
835	if (@$objs) {	771	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	777	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
843	}	779	}
844	} else {	780	} else {
845	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
851	}	787	}
852	} else {	788	} else {
853	aio_unlink $filename;	789	aio_unlink $filename;
854	aio_unlink "$filename.pst";	790	aio_unlink "$filename.pst";
855	}	791	}
		792
		793	#d##TODO# nuke non .map-files if exist
		794	if ($filename =~ s/\.map$//) {
		795	aio_unlink $filename;
		796	aio_unlink "$filename.pst";
		797	}
856	}	798	}
857	}	799	}
858		800
859	sub object_freezer_as_string {	801	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
866		808
867	sub object_thawer_load {	809	sub object_thawer_load {
868	my ($filename) = @_;	810	my ($filename) = @_;
869		811
870	my ($data, $av);	812	my ($data, $av);
		813
		814	#d#TODO remove .map if file does not exist
		815	aio_stat $filename and $filename =~ s/\.map$//;
871		816
872	(aio_load $filename, $data) >= 0	817	(aio_load $filename, $data) >= 0
873	or return;	818	or return;
874		819
875	unless (aio_stat "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
…		…
912	=cut	857	=cut
913		858
914	sub register_extcmd {	859	sub register_extcmd {
915	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
916		861
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
921	}	863	}
922		864
923	cf::player->attach (	865	cf::player->attach (
924	on_command => sub {	866	on_command => sub {
925	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
938		880
939	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
940		882
941	if (ref $msg) {	883	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	887	}
946	}	888	}
947	} else {	889	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		892
951	cf::override;	893	cf::override;
952	},	894	},
953	);	895	);
954		896
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	897	sub load_extension {
962	my ($path) = @_;	898	my ($path) = @_;
963		899
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	901	my $base = $1;
966	my $pkg = $1;	902	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
969		905
970	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
971		907
972	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
973	or die "$path: $!";	909	or die "$path: $!";
974		910
975	my $source =	911	my $source =
976	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
979	. "\n};\n1";	915	. "\n};\n1";
980		916
981	eval $source	917	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	919	: "extension disabled.\n";
984		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	921	warn $@;
986	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
987		923	exit 1;
988	# no strict 'refs';	924	}
989	# @{"$pkg\::ISA"} = ext::;	925	die $@;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	926	}
1004		927
1005	# remove commands	928	push @EXTS, $pkg;
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	929	}
1030		930
1031	sub load_extensions {	931	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	933	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
1038	}	938	}
1039	}	939	}
1040		940
1041	#############################################################################	941	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078		942
1079	=head2 CORE EXTENSIONS	943	=head2 CORE EXTENSIONS
1080		944
1081	Functions and methods that extend core crossfire objects.	945	Functions and methods that extend core crossfire objects.
1082		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
1083	=head3 cf::player	953	=head3 cf::player
1084		954
1085	=over 4	955	=over 4
1086		956
1087	=item cf::player::exists $login	957	=item cf::player::find $login
1088		958
1089	Returns true when the given account exists.	959	Returns the given player object, loading it if necessary (might block).
1090		960
1091	=cut	961	=cut
1092		962
1093	sub cf::player::exists($) {	963	sub playerdir($) {
1094	cf::player::find $_[0]	964	cf::localdir
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	965	. "/"
		966	. cf::playerdir
		967	. "/"
		968	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		969	}
		970
		971	sub path($) {
		972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		973
		974	(playerdir $login) . "/$login.pl"
		975	}
		976
		977	sub find_active($) {
		978	$cf::PLAYER{$_[0]}
		979	and $cf::PLAYER{$_[0]}->active
		980	and $cf::PLAYER{$_[0]}
		981	}
		982
		983	sub exists($) {
		984	my ($login) = @_;
		985
		986	$cf::PLAYER{$login}
		987	or cf::sync_job { !aio_stat path $login }
		988	}
		989
		990	sub find($) {
		991	return $cf::PLAYER{$_[0]} || do {
		992	my $login = $_[0];
		993
		994	my $guard = cf::lock_acquire "user_find:$login";
		995
		996	$cf::PLAYER{$_[0]} || do {
		997	my $pl = load_pl path $login
		998	or return;
		999	$cf::PLAYER{$login} = $pl
		1000	}
		1001	}
		1002	}
		1003
		1004	sub save($) {
		1005	my ($pl) = @_;
		1006
		1007	return if $pl->{deny_save};
		1008
		1009	my $path = path $pl;
		1010	my $guard = cf::lock_acquire "user_save:$path";
		1011
		1012	return if $pl->{deny_save};
		1013
		1014	aio_mkdir playerdir $pl, 0770;
		1015	$pl->{last_save} = $cf::RUNTIME;
		1016
		1017	$pl->save_pl ($path);
		1018	Coro::cede;
		1019	}
		1020
		1021	sub new($) {
		1022	my ($login) = @_;
		1023
		1024	my $self = create;
		1025
		1026	$self->ob->name ($login);
		1027	$self->{deny_save} = 1;
		1028
		1029	$cf::PLAYER{$login} = $self;
		1030
		1031	$self
		1032	}
		1033
		1034	=item $pl->quit_character
		1035
		1036	Nukes the player without looking back. If logged in, the connection will
		1037	be destroyed. May block for a long time.
		1038
		1039	=cut
		1040
		1041	sub quit_character {
		1042	my ($pl) = @_;
		1043
		1044	$pl->{deny_save} = 1;
		1045	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1046
		1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1048	$pl->deactivate;
		1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1050	$pl->ns->destroy if $pl->ns;
		1051
		1052	my $path = playerdir $pl;
		1053	my $temp = "$path~$cf::RUNTIME~deleting~";
		1054	aio_rename $path, $temp;
		1055	delete $cf::PLAYER{$pl->ob->name};
		1056	$pl->destroy;
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item cf::player::list_logins
		1061
		1062	Returns am arrayref of all valid playernames in the system, can take a
		1063	while and may block, so not sync_job-capable, ever.
		1064
		1065	=cut
		1066
		1067	sub list_logins {
		1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1069	or return [];
		1070
		1071	my @logins;
		1072
		1073	for my $login (@$dirs) {
		1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1075	aio_read $fh, 0, 512, my $buf, 0 or next;
		1076	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1077
		1078	utf8::decode $login;
		1079	push @logins, $login;
		1080	}
		1081
		1082	\@logins
		1083	}
		1084
		1085	=item $player->maps
		1086
		1087	Returns an arrayref of map paths that are private for this
		1088	player. May block.
		1089
		1090	=cut
		1091
		1092	sub maps($) {
		1093	my ($pl) = @_;
		1094
		1095	$pl = ref $pl ? $pl->ob->name : $pl;
		1096
		1097	my $files = aio_readdir playerdir $pl
		1098	or return;
		1099
		1100	my @paths;
		1101
		1102	for (@$files) {
		1103	utf8::decode $_;
		1104	next if /\.(?:pl|pst)$/;
		1105	next unless /^$PATH_SEP/o;
		1106
		1107	push @paths, cf::map::normalise "~$pl/$_";
		1108	}
		1109
		1110	\@paths
1096	}	1111	}
1097		1112
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099		1114
1100	Sends an ext reply to the player.	1115	Sends an ext reply to the player.
1101		1116
1102	=cut	1117	=cut
1103		1118
1104	sub cf::player::ext_reply($$$%) {	1119	sub ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;	1120	my ($self, $id, %msg) = @_;
1106		1121
1107	$msg{msgid} = $id;	1122	$msg{msgid} = $id;
1108		1123
1109	$self->send ("ext " . to_json \%msg);	1124	$self->send ("ext " . cf::to_json \%msg);
1110	}	1125	}
		1126
		1127	package cf;
1111		1128
1112	=back	1129	=back
1113		1130
1114		1131
1115	=head3 cf::map	1132	=head3 cf::map
…		…
1121	package cf::map;	1138	package cf::map;
1122		1139
1123	use Fcntl;	1140	use Fcntl;
1124	use Coro::AIO;	1141	use Coro::AIO;
1125		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
1126	our $MAX_RESET = 3600;	1147	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1148	our $DEFAULT_RESET = 3000;
1128		1149
1129	sub generate_random_map {	1150	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1151	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1152	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1153	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1157	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1158	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1162	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1164	(cf::region::find $rmp->{region}), $rmp->{custom}
		1165	)
		1166	}
		1167
		1168	=item cf::map->register ($regex, $prio)
		1169
		1170	Register a handler for the map path matching the given regex at the
		1171	givne priority (higher is better, built-in handlers have priority 0, the
		1172	default).
		1173
		1174	=cut
		1175
		1176	sub register {
		1177	my (undef, $regex, $prio) = @_;
		1178	my $pkg = caller;
		1179
		1180	no strict;
		1181	push @{"$pkg\::ISA"}, __PACKAGE__;
		1182
		1183	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1184	}
		1185
		1186	# also paths starting with '/'
		1187	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1188
		1189	sub thawer_merge {
		1190	my ($self, $merge) = @_;
		1191
		1192	# we have to keep some variables in memory intact
		1193	local $self->{path};
		1194	local $self->{load_path};
		1195	local $self->{deny_save};
		1196	local $self->{deny_reset};
		1197
		1198	$self->SUPER::thawer_merge ($merge);
		1199	}
		1200
		1201	sub normalise {
		1202	my ($path, $base) = @_;
		1203
		1204	$path = "$path"; # make sure its a string
		1205
		1206	$path =~ s/\.map$//;
		1207
		1208	# map plan:
		1209	#
		1210	# /! non-realised random map exit (special hack!)
		1211	# {... are special paths that are not being touched
		1212	# ?xxx/... are special absolute paths
		1213	# ?random/... random maps
		1214	# /... normal maps
		1215	# ~user/... per-player map of a specific user
		1216
		1217	$path =~ s/$PATH_SEP/\//go;
		1218
		1219	# treat it as relative path if it starts with
		1220	# something that looks reasonable
		1221	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1222	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1223
		1224	$base =~ s{[^/]+/?$}{};
		1225	$path = "$base/$path";
		1226	}
		1227
		1228	for ($path) {
		1229	redo if s{//}{/};
		1230	redo if s{/\.?/}{/};
		1231	redo if s{/[^/]+/\.\./}{/};
		1232	}
		1233
		1234	$path
		1235	}
		1236
		1237	sub new_from_path {
		1238	my (undef, $path, $base) = @_;
		1239
		1240	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1241
		1242	$path = normalise $path, $base;
		1243
		1244	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1245	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1246	my $self = bless cf::map::new, $pkg;
		1247	$self->{path} = $path; $self->path ($path);
		1248	$self->init; # pass $1 etc.
		1249	return $self;
		1250	}
		1251	}
		1252
		1253	Carp::carp "unable to resolve path '$path' (base '$base').";
		1254	()
		1255	}
		1256
		1257	sub init {
		1258	my ($self) = @_;
		1259
		1260	$self
		1261	}
		1262
		1263	sub as_string {
		1264	my ($self) = @_;
		1265
		1266	"$self->{path}"
		1267	}
		1268
		1269	# the displayed name, this is a one way mapping
		1270	sub visible_name {
		1271	&as_string
		1272	}
		1273
		1274	# the original (read-only) location
		1275	sub load_path {
		1276	my ($self) = @_;
		1277
		1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1279	}
		1280
		1281	# the temporary/swap location
		1282	sub save_path {
		1283	my ($self) = @_;
		1284
		1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1287	}
		1288
		1289	# the unique path, undef == no special unique path
		1290	sub uniq_path {
		1291	my ($self) = @_;
		1292
		1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146	}	1295	}
1147		1296
1148	# and all this just because we cannot iterate over	1297	# and all this just because we cannot iterate over
1149	# all maps in C++...	1298	# all maps in C++...
1150	sub change_all_map_light {	1299	sub change_all_map_light {
…		…
1152		1301
1153	$_->change_map_light ($change)	1302	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1303	for grep $_->outdoor, values %cf::MAP;
1155	}	1304	}
1156		1305
		1306	sub unlink_save {
		1307	my ($self) = @_;
		1308
		1309	utf8::encode (my $save = $self->save_path);
		1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1312
		1313	#d#TODO remove .map and also nuke
		1314	$save =~ s/\.map// or return;#d#
		1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1317	}
		1318
1157	sub try_load_header($) {	1319	sub load_header_from($) {
1158	my ($path) = @_;	1320	my ($self, $path) = @_;
1159		1321
1160	utf8::encode $path;	1322	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
1162	or return;	1327	or return;
1163		1328
1164	my $map = cf::map::new	1329	$self->{load_path} = $path;
		1330
		1331	1
		1332	}
		1333
		1334	sub load_header_orig {
		1335	my ($self) = @_;
		1336
		1337	$self->load_header_from ($self->load_path)
		1338	}
		1339
		1340	sub load_header_temp {
		1341	my ($self) = @_;
		1342
		1343	$self->load_header_from ($self->save_path)
		1344	}
		1345
		1346	sub prepare_temp {
		1347	my ($self) = @_;
		1348
		1349	$self->last_access ((delete $self->{last_access})
		1350	|| $cf::RUNTIME); #d#
		1351	# safety
		1352	$self->{instantiate_time} = $cf::RUNTIME
		1353	if $self->{instantiate_time} > $cf::RUNTIME;
		1354	}
		1355
		1356	sub prepare_orig {
		1357	my ($self) = @_;
		1358
		1359	$self->{load_original} = 1;
		1360	$self->{instantiate_time} = $cf::RUNTIME;
		1361	$self->last_access ($cf::RUNTIME);
		1362	$self->instantiate;
		1363	}
		1364
		1365	sub load_header {
		1366	my ($self) = @_;
		1367
		1368	if ($self->load_header_temp) {
		1369	$self->prepare_temp;
		1370	} else {
		1371	$self->load_header_orig
1165	or return;	1372	or return;
		1373	$self->prepare_orig;
		1374	}
1166		1375
1167	# for better error messages only, will be overwritten	1376	1
1168	$map->path ($path);
1169
1170	$map->load_header ($path)
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1377	}
1177		1378
1178	sub find;	1379	sub find;
1179	sub find {	1380	sub find {
1180	my ($path, $origin) = @_;	1381	my ($path, $origin) = @_;
1181		1382
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1383	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1384
1187	cf::lock_wait "map_find:$key";	1385	cf::lock_wait "map_find:$path";
1188		1386
1189	$cf::MAP{$key} || do {	1387	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1388	my $guard = cf::lock_acquire "map_find:$path";
1191		1389	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1390	or return;
1211		1391
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1392	$map->{last_save} = $cf::RUNTIME;
1224		1393
1225	Coro::cede;	1394	$map->load_header
		1395	or return;
1226		1396
1227	if ($map->should_reset) {	1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1398	# doing this can freeze the server in a sync job, obviously
		1399	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1400	$map->reset;
1229	undef $guard;	1401	undef $guard;
1230	$map = find $path	1402	return find $path;
1231	or return;
1232	}	1403	}
1233		1404
1234	$cf::MAP{$key} = $map	1405	$cf::MAP{$path} = $map
1235	}	1406	}
1236	}	1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
1237		1411
1238	sub load {	1412	sub load {
1239	my ($self) = @_;	1413	my ($self) = @_;
1240		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
1241	my $path = $self->{path};	1417	my $path = $self->{path};
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1418	my $guard = cf::lock_acquire "map_load:$path";
1243		1419
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1420	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1421
1246	$self->in_memory (cf::MAP_LOADING);	1422	$self->in_memory (cf::MAP_LOADING);
1247		1423
1248	$self->alloc;	1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
1249	$self->load_objects ($self->{load_path}, 1)	1428	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1429	or return;
1251		1430
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1432	if delete $self->{load_original};
1254		1433
1255	if (my $uniq = $path->uniq_path) {	1434	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1435	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1436	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1437	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1438	$self->_load_objects ($uniq, 0);
1260	}	1439	}
1261	}	1440	}
1262		1441
1263	Coro::cede;	1442	Coro::cede;
1264		1443
1265	# now do the right thing for maps	1444	# now do the right thing for maps
1266	$self->link_multipart_objects;	1445	$self->link_multipart_objects;
1267		1446
1268	if ($self->{path}->is_style_map) {	1447	unless ($self->{deny_activate}) {
1269	$self->{deny_save} = 1;	1448	$self->decay_objects;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;	1449	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;	1450	$self->update_buttons;
		1451	Coro::cede;
1275	$self->set_darkness_map;	1452	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1453	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1454	unless $self->difficulty;
		1455	Coro::cede;
1278	$self->activate;	1456	$self->activate;
1279	}	1457	}
1280		1458
1281	Coro::cede;	1459	$self->post_load;
1282		1460
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1461	$self->in_memory (cf::MAP_IN_MEMORY);
		1462	}
		1463
		1464	sub customise_for {
		1465	my ($self, $ob) = @_;
		1466
		1467	return find "~" . $ob->name . "/" . $self->{path}
		1468	if $self->per_player;
		1469
		1470	$self
		1471	}
		1472
		1473	# find and load all maps in the 3x3 area around a map
		1474	sub load_diag {
		1475	my ($map) = @_;
		1476
		1477	my @diag; # diagonal neighbours
		1478
		1479	for (0 .. 3) {
		1480	my $neigh = $map->tile_path ($_)
		1481	or next;
		1482	$neigh = find $neigh, $map
		1483	or next;
		1484	$neigh->load;
		1485
		1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1488	}
		1489
		1490	for (@diag) {
		1491	my $neigh = find @$_
		1492	or next;
		1493	$neigh->load;
		1494	}
1284	}	1495	}
1285		1496
1286	sub find_sync {	1497	sub find_sync {
1287	my ($path, $origin) = @_;	1498	my ($path, $origin) = @_;
1288		1499
1289	cf::sync_job { cf::map::find $path, $origin }	1500	cf::sync_job { find $path, $origin }
1290	}	1501	}
1291		1502
1292	sub do_load_sync {	1503	sub do_load_sync {
1293	my ($map) = @_;	1504	my ($map) = @_;
1294		1505
1295	cf::sync_job { $map->load };	1506	cf::sync_job { $map->load };
1296	}	1507	}
1297		1508
		1509	our %MAP_PREFETCH;
		1510	our $MAP_PREFETCHER = undef;
		1511
		1512	sub find_async {
		1513	my ($path, $origin) = @_;
		1514
		1515	$path = normalise $path, $origin && $origin->{path};
		1516
		1517	if (my $map = $cf::MAP{$path}) {
		1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1519	}
		1520
		1521	undef $MAP_PREFETCH{$path};
		1522	$MAP_PREFETCHER ||= cf::async {
		1523	while (%MAP_PREFETCH) {
		1524	for my $path (keys %MAP_PREFETCH) {
		1525	my $map = find $path
		1526	or next;
		1527	$map->load;
		1528
		1529	delete $MAP_PREFETCH{$path};
		1530	}
		1531	}
		1532	undef $MAP_PREFETCHER;
		1533	};
		1534	$MAP_PREFETCHER->prio (6);
		1535
		1536	()
		1537	}
		1538
1298	sub save {	1539	sub save {
1299	my ($self) = @_;	1540	my ($self) = @_;
1300		1541
		1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1543
1301	$self->{last_save} = $cf::RUNTIME;	1544	$self->{last_save} = $cf::RUNTIME;
1302		1545
1303	return unless $self->dirty;	1546	return unless $self->dirty;
1304		1547
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1548	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1550
1308	$self->{load_path} = $save;	1551	$self->{load_path} = $save;
1309		1552
1310	return if $self->{deny_save};	1553	return if $self->{deny_save};
1311		1554
1312	local $self->{last_access} = $self->last_access;#d#	1555	local $self->{last_access} = $self->last_access;#d#
1313		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
1314	if ($uniq) {	1561	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1564	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1565	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1566	}
1320	}	1567	}
1321		1568
1322	sub swap_out {	1569	sub swap_out {
1323	my ($self) = @_;	1570	my ($self) = @_;
1324		1571
1325	# save first because save cedes	1572	# save first because save cedes
1326	$self->save;	1573	$self->save;
		1574
		1575	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1576
1328	return if $self->players;	1577	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1578	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1579	return if $self->{deny_save};
1331		1580
…		…
1335		1584
1336	sub reset_at {	1585	sub reset_at {
1337	my ($self) = @_;	1586	my ($self) = @_;
1338		1587
1339	# TODO: safety, remove and allow resettable per-player maps	1588	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1590	return 1e99 if $self->{deny_reset};
1342		1591
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1594
…		…
1350	my ($self) = @_;	1599	my ($self) = @_;
1351		1600
1352	$self->reset_at <= $cf::RUNTIME	1601	$self->reset_at <= $cf::RUNTIME
1353	}	1602	}
1354		1603
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1604	sub reset {
1377	my ($self) = @_;	1605	my ($self) = @_;
1378		1606
		1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1608
1379	return if $self->players;	1609	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1610	return if $self->isa ("ext::map_per_player");#d#
1381		1611
1382	warn "resetting map ", $self->path;#d#	1612	warn "resetting map ", $self->path;#d#
1383		1613
1384	delete $cf::MAP{$self->path};	1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
1385		1618
1386	$_->clear_links_to ($self) for values %cf::MAP;	1619	$_->clear_links_to ($self) for values %cf::MAP;
1387		1620
1388	$self->unlink_save;	1621	$self->unlink_save;
1389	$self->destroy;	1622	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1625	my $nuke_counter = "aaaa";
1393		1626
1394	sub nuke {	1627	sub nuke {
1395	my ($self) = @_;	1628	my ($self) = @_;
1396		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1636	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1637	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
1400	$self->reset; # polite request, might not happen	1642	$self->reset; # polite request, might not happen
1401	}	1643	}
1402		1644
1403	sub customise_for {	1645	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1646
1406	if ($map->per_player) {	1647	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1648	instantiated unique items. May block.
1408	}
1409		1649
1410	$map	1650	=cut
1411	}
1412		1651
1413	sub emergency_save {	1652	sub unique_maps() {
1414	my $freeze_guard = cf::freeze_mainloop;	1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
1415		1655
1416	warn "enter emergency map save\n";	1656	my @paths;
1417		1657
1418	cf::sync_job {	1658	for (@$files) {
1419	warn "begin emergency map save\n";	1659	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
1421	};	1664	}
1422		1665
1423	warn "end emergency map save\n";	1666	\@paths
1424	}	1667	}
1425		1668
1426	package cf;	1669	package cf;
1427		1670
1428	=back	1671	=back
1429		1672
		1673	=head3 cf::object
		1674
		1675	=cut
		1676
		1677	package cf::object;
		1678
		1679	=over 4
		1680
		1681	=item $ob->inv_recursive
		1682
		1683	Returns the inventory of the object _and_ their inventories, recursively.
		1684
		1685	=cut
		1686
		1687	sub inv_recursive_;
		1688	sub inv_recursive_ {
		1689	map { $_, inv_recursive_ $_->inv } @_
		1690	}
		1691
		1692	sub inv_recursive {
		1693	inv_recursive_ inv $_[0]
		1694	}
		1695
		1696	package cf;
		1697
		1698	=back
1430		1699
1431	=head3 cf::object::player	1700	=head3 cf::object::player
1432		1701
1433	=over 4	1702	=over 4
1434		1703
…		…
1474		1743
1475	=item $player_object->enter_link	1744	=item $player_object->enter_link
1476		1745
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1746	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1747
1479	The player should be reaosnably safe there for short amounts of time. You	1748	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1749	I<MUST> call C<leave_link> as soon as possible, though.
1481		1750
		1751	Will never block.
		1752
1482	=item $player_object->leave_link ($map, $x, $y)	1753	=item $player_object->leave_link ($map, $x, $y)
1483		1754
1484	Moves the player out of the specila link map onto the given map. If the	1755	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1756	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1757	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1758	fails, to the emergency map position.
1488		1759
1489	Might block.	1760	Might block.
1490		1761
1491	=cut	1762	=cut
		1763
		1764	sub link_map {
		1765	unless ($LINK_MAP) {
		1766	$LINK_MAP = cf::map::find "{link}"
		1767	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1768	$LINK_MAP->load;
		1769	}
		1770
		1771	$LINK_MAP
		1772	}
1492		1773
1493	sub cf::object::player::enter_link {	1774	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1775	my ($self) = @_;
1495		1776
1496	$self->deactivate_recursive;	1777	$self->deactivate_recursive;
1497		1778
1498	return if $self->map == $LINK_MAP;	1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1780
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1782	if $self->map;
1502		1783
1503	$self->enter_map ($LINK_MAP, 20, 20);	1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1785	}
1505		1786
1506	sub cf::object::player::leave_link {	1787	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1788	my ($self, $map, $x, $y) = @_;
1508		1789
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1807	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1808	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1809	if $x <=0 && $y <= 0;
1529		1810
1530	$map->load;	1811	$map->load;
		1812	$map->load_diag;
1531		1813
		1814	return unless $self->contr->active;
1532	$self->activate_recursive;	1815	$self->activate_recursive;
1533	$self->enter_map ($map, $x, $y);	1816	$self->enter_map ($map, $x, $y);
1534	}	1817	}
1535		1818
1536	cf::player->attach (	1819	cf::player->attach (
…		…
1549		1832
1550	# try to abort aborted map switching on player login :)	1833	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1834	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1835	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1836	$pl->ob->enter_link;
1554	cf::async {	1837	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running	1838	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1839	# and this sleep increases chances of the player not ending up in scorn
		1840	$pl->ob->reply (undef,
		1841	"There was an internal problem at your last logout, "
		1842	. "the server will try to bring you to your intended destination in a second.",
		1843	cf::NDI_RED);
1557	Coro::Timer::sleep 1;	1844	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1845	$pl->ob->leave_link;
1559	};	1846	})->prio (2);
1560	}	1847	}
1561	},	1848	},
1562	);	1849	);
1563		1850
1564	=item $player_object->goto_map ($path, $x, $y)	1851	=item $player_object->goto ($path, $x, $y)
1565		1852
1566	=cut	1853	=cut
1567		1854
1568	sub cf::object::player::goto_map {	1855	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1856	my ($self, $path, $x, $y) = @_;
1570		1857
1571	$self->enter_link;	1858	$self->enter_link;
1572		1859
1573	(cf::async {	1860	(async {
1574	$path = new cf::path $path;	1861	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	1862	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1863	$map = $map->customise_for ($self) if $map;
1578		1864	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1865	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1866	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1867
1584	$self->leave_link ($map, $x, $y);	1868	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1869	})->prio (1);
1586	}	1870	}
1587		1871
…		…
1591		1875
1592	sub parse_random_map_params {	1876	sub parse_random_map_params {
1593	my ($spec) = @_;	1877	my ($spec) = @_;
1594		1878
1595	my $rmp = { # defaults	1879	my $rmp = { # defaults
1596	xsize => 10,	1880	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
1598	};	1884	};
1599		1885
1600	for (split /\n/, $spec) {	1886	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1887	my ($k, $v) = split /\s+/, $_, 2;
1602		1888
…		…
1606	$rmp	1892	$rmp
1607	}	1893	}
1608		1894
1609	sub prepare_random_map {	1895	sub prepare_random_map {
1610	my ($exit) = @_;	1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1899
1612	# all this does is basically replace the /! path by	1900	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1901	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1902	# that depends on the exit object
1615		1903
1616	my $rmp = parse_random_map_params $exit->msg;	1904	my $rmp = parse_random_map_params $exit->msg;
1617		1905
1618	if ($exit->map) {	1906	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1907	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	1908	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	1909	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	1910	$rmp->{origin_y} = $exit->y;
1623	}	1911	}
1624		1912
1625	$rmp->{random_seed} ||= $exit->random_seed;	1913	$rmp->{random_seed} ||= $exit->random_seed;
1626		1914
1627	my $data = cf::to_json $rmp;	1915	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1918
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1919	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1920	aio_write $fh, 0, (length $data), $data, 0;
		1921	undef $fh;
		1922	aio_rename "$meta~", $meta;
1632		1923
1633	$exit->slaying ("?random/$md5");	1924	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1925	$exit->msg (undef);
1635	}	1926	}
1636	}	1927	}
…		…
1638	sub cf::object::player::enter_exit {	1929	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	1930	my ($self, $exit) = @_;
1640		1931
1641	return unless $self->type == cf::PLAYER;	1932	return unless $self->type == cf::PLAYER;
1642		1933
		1934	if ($exit->slaying eq "/!") {
		1935	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1936	cf::sync_job { prepare_random_map $exit };
		1937	}
		1938
		1939	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1940	my $hp = $exit->stats->hp;
		1941	my $sp = $exit->stats->sp;
		1942
1643	$self->enter_link;	1943	$self->enter_link;
1644		1944
1645	(cf::async {	1945	(async {
1646	$self->deactivate_recursive; # just to be sure	1946	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1947	unless (eval {
1648	prepare_random_map $exit	1948	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		1949
1654	1;	1950	1;
1655	}) {	1951	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1952	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1953	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1954	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1955	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1956
1661	warn "ERROR in enter_exit: $@";	1957	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1958	$self->leave_link;
1663	}	1959	}
…		…
1718	# get handled first	2014	# get handled first
1719	my $queue = delete $ns->{query_queue}	2015	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2016	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2017
1722	(shift @$queue)->[1]->($msg);	2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2020
1724	push @{ $ns->{query_queue} }, @$queue;	2021	push @{ $ns->{query_queue} }, @$queue;
1725		2022
1726	if (@{ $ns->{query_queue} } == @$queue) {	2023	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2024	if (@$queue) {
…		…
1731	}	2028	}
1732	}	2029	}
1733	},	2030	},
1734	);	2031	);
1735		2032
1736	=item $client->coro (\&cb)	2033	=item $client->async (\&cb)
1737		2034
1738	Create a new coroutine, running the specified callback. The coroutine will	2035	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2036	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2037	or loss of connection).
1741		2038
1742	=cut	2039	=cut
1743		2040
1744	sub cf::client::coro {	2041	sub cf::client::async {
1745	my ($self, $cb) = @_;	2042	my ($self, $cb) = @_;
1746		2043
1747	my $coro = &cf::async ($cb);	2044	my $coro = &Coro::async ($cb);
1748		2045
1749	$coro->on_destroy (sub {	2046	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2047	delete $self->{_coro}{$coro+0};
1751	});	2048	});
1752		2049
…		…
1888	The parameter C<$family> should best start with the name of the extension	2185	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2186	using it, it should be unique.
1890		2187
1891	=over 4	2188	=over 4
1892		2189
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2190	=item $value = cf::db_get $family => $key
1900		2191
1901	Returns a single value from the database	2192	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2193
1908	=item cf::db_put $family => $key => $value	2194	=item cf::db_put $family => $key => $value
1909		2195
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2196	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2197
1921	=cut	2198	=cut
1922		2199
1923	our $DB;	2200	our $DB;
1924		2201
1925	{	2202	unless ($DB) {
		2203	$DB = BDB::db_create $DB_ENV;
		2204
		2205	cf::sync_job {
		2206	eval {
		2207	$DB->set_flags (BDB::CHKSUM);
		2208
		2209	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2210	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2211	cf::cleanup "db_open(db): $!" if $!;
		2212	};
		2213	cf::cleanup "db_open(db): $@" if $@;
		2214	};
		2215
1926	my $path = cf::localdir . "/database.pst";	2216	my $path = cf::localdir . "/database.pst";
		2217	if (stat $path) {
		2218	cf::sync_job {
		2219	my $pst = Storable::retrieve $path;
1927		2220
1928	sub db_load() {	2221	cf::db_put (board => data => $pst->{board});
1929	$DB = stat $path ? Storable::retrieve $path : { };	2222	cf::db_put (guildrules => data => $pst->{guildrules});
1930	}	2223	cf::db_put (rent => balance => $pst->{rent}{balance});
		2224	BDB::db_env_txn_checkpoint $DB_ENV;
1931		2225
1932	my $pid;	2226	unlink $path;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2227	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	2228	}
		2229	}
1954		2230
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {	2231	sub db_get($$) {
1961	@_ >= 2	2232	my $key = "$_[0]/$_[1]";
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		2233
		2234	cf::sync_job {
		2235	BDB::db_get $DB, undef, $key, my $data;
		2236
		2237	$! ? ()
		2238	: Compress::LZF::sthaw $data
		2239	}
		2240	}
		2241
1966	sub db_put($$;$) {	2242	sub db_put($$$) {
1967	if (@_ >= 3) {	2243	BDB::dbreq_pri 4;
1968	$DB->{$_[0]}{$_[1]} = $_[2];	2244	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},
1980	);
1981	}	2245	}
1982		2246
1983	#############################################################################	2247	#############################################################################
1984	# the server's main()	2248	# the server's init and main functions
		2249
		2250	sub load_resources {
		2251	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2252	or die "unable to load regions file\n";#d#
		2253	}
1985		2254
1986	sub cfg_load {	2255	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2256	open my $fh, "<:utf8", cf::confdir . "/config"
1988	or return;	2257	or return;
1989		2258
1990	local $/;	2259	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2260	*CFG = YAML::Syck::Load <$fh>;
1992		2261
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2262	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2263
		2264	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2265	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2266
1995	if (exists $CFG{mlockall}) {	2267	if (exists $CFG{mlockall}) {
1996	eval {	2268	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2269	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2270	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2271	};
2000	warn $@ if $@;	2272	warn $@ if $@;
2001	}	2273	}
		2274	}
		2275
		2276	sub init {
		2277	load_resources;
2002	}	2278	}
2003		2279
2004	sub main {	2280	sub main {
2005	# we must not ever block the main coroutine	2281	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2282	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2284	(async {
2009	Event::one_event;	2285	Event::one_event;
2010	})->();	2286	})->prio (Coro::PRIO_MAX);
2011	};	2287	};
2012		2288
2013	cfg_load;	2289	cfg_load;
2014	db_load;
2015	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
2016	Event::loop;	2293	Event::loop;
2017	}	2294	}
2018		2295
2019	#############################################################################	2296	#############################################################################
2020	# initialisation	2297	# initialisation and cleanup
		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
2021		2346
2022	sub reload() {	2347	sub reload() {
2023	# can/must only be called in main	2348	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2349	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2350	warn "can only reload from main coroutine";
2026	return;	2351	return;
2027	}	2352	}
2028		2353
2029	warn "reloading...";	2354	warn "reloading...";
2030		2355
2031	my $guard = freeze_mainloop;	2356	warn "cancelling server ticker";
		2357	$TICK_WATCHER->cancel;
		2358
2032	cf::emergency_save;	2359	cf::emergency_save;
2033		2360
2034	eval {	2361	eval {
2035	# if anything goes wrong in here, we should simply crash as we already saved	2362	# if anything goes wrong in here, we should simply crash as we already saved
2036		2363
2037	# cancel all watchers	2364	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2365	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2366	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2367	}
2041		2368
		2369	warn "syncing database to disk";
		2370	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2371
		2372	warn "flushing outstanding aio requests";
		2373	for (;;) {
		2374	BDB::flush;
		2375	IO::AIO::flush;
		2376	Coro::cede;
		2377	last unless IO::AIO::nreqs || BDB::nreqs;
		2378	warn "iterate...";
		2379	}
		2380
2042	# cancel all extension coros	2381	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2382	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2383	%EXT_CORO = ();
2045		2384
2046	# unload all extensions	2385	warn "removing commands";
2047	for (@exts) {	2386	%COMMAND = ();
		2387
		2388	warn "removing ext commands";
		2389	%EXTCMD = ();
		2390
		2391	warn "unloading/nuking all extensions";
		2392	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2393	warn "... unloading $pkg";
2049	unload_extension $_;	2394
		2395	if (my $cb = $pkg->can ("unload")) {
		2396	eval {
		2397	$cb->($pkg);
		2398	1
		2399	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2400	}
2051		2401
		2402	warn "... nuking $pkg";
		2403	Symbol::delete_package $pkg;
		2404	}
		2405
2052	# unload all modules loaded from $LIBDIR	2406	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2407	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2408	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2409
2056	warn "removing <$k>";	2410	warn "... unloading $k";
2057	delete $INC{$k};	2411	delete $INC{$k};
2058		2412
2059	$k =~ s/\.pm$//;	2413	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2414	$k =~ s/\//::/g;
2061		2415
…		…
2064	}	2418	}
2065		2419
2066	Symbol::delete_package $k;	2420	Symbol::delete_package $k;
2067	}	2421	}
2068		2422
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2423	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2424	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2425	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2426
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2427	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2428	delete $INC{"cf.pm"};
2082		2429
2083	# don't, removes xs symbols, too,	2430	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2431	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2432	#Symbol::delete_package __PACKAGE__;
2086		2433
2087	# reload cf.pm	2434	warn "unload completed, starting to reload now";
		2435
2088	warn "reloading cf.pm";	2436	warn "reloading cf.pm";
2089	require cf;	2437	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2438	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2439
2092	# load config and database again	2440	warn "loading config and database again";
2093	cf::cfg_load;	2441	cf::cfg_load;
2094	cf::db_load;
2095		2442
2096	# load extensions
2097	warn "load extensions";	2443	warn "loading extensions";
2098	cf::load_extensions;	2444	cf::load_extensions;
2099		2445
2100	# reattach attachments to objects	2446	warn "reattaching attachments to objects/players";
2101	warn "reattach";
2102	_global_reattach;	2447	_global_reattach;
		2448	warn "reattaching attachments to maps";
		2449	reattach $_ for values %MAP;
		2450
		2451	warn "loading reloadable resources";
		2452	load_resources;
		2453
		2454	warn "restarting server ticker";
		2455
		2456	$TICK_WATCHER->start;
2103	};	2457	};
2104		2458
2105	if ($@) {	2459	if ($@) {
2106	warn $@;	2460	warn $@;
2107	warn "error while reloading, exiting.";	2461	warn "error while reloading, exiting.";
2108	exit 1;	2462	exit 1;
2109	}	2463	}
2110		2464
2111	warn "reloaded successfully";	2465	warn "reloaded";
2112	};	2466	};
2113		2467
2114	#############################################################################	2468	our $RELOAD_WATCHER; # used only during reload
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2469
2159	register_command "reload" => sub {	2470	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2471	my ($who, $arg) = @_;
2161		2472
2162	if ($who->flag (FLAG_WIZ)) {	2473	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2474	$who->message ("reloading server.");
		2475
		2476	# doing reload synchronously and two reloads happen back-to-back,
		2477	# coro crashes during coro_state_free->destroy here.
		2478
		2479	$RELOAD_WATCHER ||= Event->timer (
		2480	reentrant => 0,
		2481	after => 0,
		2482	data => WF_AUTOCANCEL,
		2483	cb => sub {
2164	reload;	2484	reload;
2165	$who->message ("end of reload.");	2485	undef $RELOAD_WATCHER;
		2486	},
		2487	);
2166	}	2488	}
2167	};	2489	};
2168		2490
2169	unshift @INC, $LIBDIR;	2491	unshift @INC, $LIBDIR;
		2492
		2493	my $bug_warning = 0;
2170		2494
2171	$TICK_WATCHER = Event->timer (	2495	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2496	reentrant => 0,
		2497	parked => 1,
2173	prio => 0,	2498	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2499	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2500	data => WF_AUTOCANCEL,
2176	cb => sub {	2501	cb => sub {
		2502	if ($Coro::current != $Coro::main) {
		2503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2504	unless ++$bug_warning > 10;
		2505	return;
		2506	}
		2507
		2508	$NOW = Event::time;
		2509
2177	cf::server_tick; # one server iteration	2510	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;	2511	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	2512	$NEXT_TICK += $TICK;
		2513
		2514	$WAIT_FOR_TICK->broadcast;
		2515	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2516
		2517	Event::sweep;
		2518	Coro::cede_notself;
		2519
		2520	# my $AFTER = Event::time;
		2521	# warn $AFTER - $NOW;#d#
2180		2522
2181	# if we are delayed by four ticks or more, skip them all	2523	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2524	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183		2525
2184	$TICK_WATCHER->at ($NEXT_TICK);	2526	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	2527	$TICK_WATCHER->start;
2186	},	2528	},
2187	);	2529	);
2188		2530
		2531	{
		2532	BDB::max_poll_time $TICK * 0.1;
		2533	$BDB_POLL_WATCHER = Event->io (
		2534	reentrant => 0,
		2535	fd => BDB::poll_fileno,
		2536	poll => 'r',
		2537	prio => 0,
		2538	data => WF_AUTOCANCEL,
		2539	cb => \&BDB::poll_cb,
		2540	);
		2541	BDB::min_parallel 8;
		2542
		2543	BDB::set_sync_prepare {
		2544	my $status;
		2545	my $current = $Coro::current;
		2546	(
		2547	sub {
		2548	$status = $!;
		2549	$current->ready; undef $current;
		2550	},
		2551	sub {
		2552	Coro::schedule while defined $current;
		2553	$! = $status;
		2554	},
		2555	)
		2556	};
		2557
		2558	unless ($DB_ENV) {
		2559	$DB_ENV = BDB::db_env_create;
		2560
		2561	cf::sync_job {
		2562	eval {
		2563	BDB::db_env_open
		2564	$DB_ENV,
		2565	$BDB_ENV_DIR,
		2566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2568	0666;
		2569
		2570	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2571
		2572	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2573	$DB_ENV->set_lk_detect;
		2574	};
		2575
		2576	cf::cleanup "db_env_open(db): $@" if $@;
		2577	};
		2578	}
		2579	}
		2580
		2581	{
		2582	IO::AIO::min_parallel 8;
		2583
		2584	undef $Coro::AIO::WATCHER;
2189	IO::AIO::max_poll_time $TICK * 0.2;	2585	IO::AIO::max_poll_time $TICK * 0.1;
2190		2586	$AIO_POLL_WATCHER = Event->io (
2191	Event->io (	2587	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	2588	fd => IO::AIO::poll_fileno,
2193	poll => 'r',	2589	poll => 'r',
2194	prio => 5,	2590	prio => 6,
2195	data => WF_AUTOCANCEL,	2591	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,	2592	cb => \&IO::AIO::poll_cb,
2197	);	2593	);
		2594	}
2198		2595
2199	Event->timer (	2596	$WRITE_RUNTIME_WATCHER = Event->timer (
		2597	reentrant => 0,
2200	data => WF_AUTOCANCEL,	2598	data => WF_AUTOCANCEL,
2201	after => 0,	2599	after => 1,
2202	interval => 10,	2600	interval => 10,
2203	cb => sub {	2601	prio => 6, # keep it lowest so it acts like a watchdog
2204	(Coro::unblock_sub {	2602	cb => Coro::unblock_sub {
2205	write_runtime	2603	write_runtime
2206	or warn "ERROR: unable to write runtime file: $!";	2604	or warn "ERROR: unable to write runtime file: $!";
2207	})->();
2208	},	2605	},
2209	);	2606	);
2210		2607
2211	END { cf::emergency_save }	2608	END { cf::emergency_save }
2212		2609

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