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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.208 by root, Mon Feb 12 00:27:20 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
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1543
1303	$self->{last_save} = $cf::RUNTIME;	1544	$self->{last_save} = $cf::RUNTIME;
1304		1545
1305	return unless $self->dirty;	1546	return unless $self->dirty;
1306		1547
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1548	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1550
1310	$self->{load_path} = $save;	1551	$self->{load_path} = $save;
1311		1552
1312	return if $self->{deny_save};	1553	return if $self->{deny_save};
1313		1554
1314	local $self->{last_access} = $self->last_access;#d#	1555	local $self->{last_access} = $self->last_access;#d#
1315		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
1316	if ($uniq) {	1561	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1564	} else {
1320	$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);
1321	}	1566	}
1322	}	1567	}
1323		1568
1324	sub swap_out {	1569	sub swap_out {
1325	my ($self) = @_;	1570	my ($self) = @_;
…		…
1339		1584
1340	sub reset_at {	1585	sub reset_at {
1341	my ($self) = @_;	1586	my ($self) = @_;
1342		1587
1343	# TODO: safety, remove and allow resettable per-player maps	1588	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};	1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1345	return 1e99 if $self->{deny_reset};	1590	return 1e99 if $self->{deny_reset};
1346		1591
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	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;
1349		1594
…		…
1354	my ($self) = @_;	1599	my ($self) = @_;
1355		1600
1356	$self->reset_at <= $cf::RUNTIME	1601	$self->reset_at <= $cf::RUNTIME
1357	}	1602	}
1358		1603
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	1604	sub reset {
1381	my ($self) = @_;	1605	my ($self) = @_;
1382		1606
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1608
1385	return if $self->players;	1609	return if $self->players;
1386	return if $self->{path}{user_rel};#d#	1610	return if $self->isa ("ext::map_per_player");#d#
1387		1611
1388	warn "resetting map ", $self->path;#d#	1612	warn "resetting map ", $self->path;#d#
1389		1613
1390	delete $cf::MAP{$self->path};	1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
1391		1618
1392	$_->clear_links_to ($self) for values %cf::MAP;	1619	$_->clear_links_to ($self) for values %cf::MAP;
1393		1620
1394	$self->unlink_save;	1621	$self->unlink_save;
1395	$self->destroy;	1622	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	1625	my $nuke_counter = "aaaa";
1399		1626
1400	sub nuke {	1627	sub nuke {
1401	my ($self) = @_;	1628	my ($self) = @_;
1402		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	1636	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	1637	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
1406	$self->reset; # polite request, might not happen	1642	$self->reset; # polite request, might not happen
1407	}	1643	}
1408		1644
1409	sub customise_for {	1645	=item cf::map::unique_maps
1410	my ($map, $ob) = @_;
1411		1646
1412	if ($map->per_player) {	1647	Returns an arrayref of paths of all shared maps that have
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1648	instantiated unique items. May block.
1414	}
1415		1649
1416	$map	1650	=cut
1417	}
1418		1651
1419	sub emergency_save {	1652	sub unique_maps() {
1420	my $freeze_guard = cf::freeze_mainloop;	1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
1421		1655
1422	warn "enter emergency map save\n";	1656	my @paths;
1423		1657
1424	cf::sync_job {	1658	for (@$files) {
1425	warn "begin emergency map save\n";	1659	utf8::decode $_;
1426	$_->save for values %cf::MAP;	1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
1427	};	1664	}
1428		1665
1429	warn "end emergency map save\n";	1666	\@paths
1430	}	1667	}
1431		1668
1432	package cf;	1669	package cf;
1433		1670
1434	=back	1671	=back
1435		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
1436		1699
1437	=head3 cf::object::player	1700	=head3 cf::object::player
1438		1701
1439	=over 4	1702	=over 4
1440		1703
…		…
1480		1743
1481	=item $player_object->enter_link	1744	=item $player_object->enter_link
1482		1745
1483	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}>).
1484		1747
1485	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
1486	I<MUST> call C<leave_link> as soon as possible, though.	1749	I<MUST> call C<leave_link> as soon as possible, though.
1487		1750
		1751	Will never block.
		1752
1488	=item $player_object->leave_link ($map, $x, $y)	1753	=item $player_object->leave_link ($map, $x, $y)
1489		1754
1490	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
1491	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
1492	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
1493	to the emergency map position.	1758	fails, to the emergency map position.
1494		1759
1495	Might block.	1760	Might block.
1496		1761
1497	=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	}
1498		1773
1499	sub cf::object::player::enter_link {	1774	sub cf::object::player::enter_link {
1500	my ($self) = @_;	1775	my ($self) = @_;
1501		1776
1502	$self->deactivate_recursive;	1777	$self->deactivate_recursive;
1503		1778
1504	return if $self->map == $LINK_MAP;	1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		1780
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	1782	if $self->map;
1508		1783
1509	$self->enter_map ($LINK_MAP, 20, 20);	1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	1785	}
1511		1786
1512	sub cf::object::player::leave_link {	1787	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	1788	my ($self, $map, $x, $y) = @_;
1514		1789
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	1807	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	1808	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	1809	if $x <=0 && $y <= 0;
1535		1810
1536	$map->load;	1811	$map->load;
		1812	$map->load_diag;
1537		1813
		1814	return unless $self->contr->active;
1538	$self->activate_recursive;	1815	$self->activate_recursive;
1539	$self->enter_map ($map, $x, $y);	1816	$self->enter_map ($map, $x, $y);
1540	}	1817	}
1541		1818
1542	cf::player->attach (	1819	cf::player->attach (
…		…
1555		1832
1556	# try to abort aborted map switching on player login :)	1833	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes	1834	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {	1835	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;	1836	$pl->ob->enter_link;
1560	cf::async {	1837	(async {
1561	# 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
1562	# 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);
1563	Coro::Timer::sleep 1;	1844	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;	1845	$pl->ob->leave_link;
1565	};	1846	})->prio (2);
1566	}	1847	}
1567	},	1848	},
1568	);	1849	);
1569		1850
1570	=item $player_object->goto ($path, $x, $y)	1851	=item $player_object->goto ($path, $x, $y)
…		…
1574	sub cf::object::player::goto {	1855	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	1856	my ($self, $path, $x, $y) = @_;
1576		1857
1577	$self->enter_link;	1858	$self->enter_link;
1578		1859
1579	(cf::async {	1860	(async {
1580	$path = new cf::path $path;	1861	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	1862	my $map = cf::map::find $path;
1583	$map = $map->customise_for ($self) if $map;	1863	$map = $map->customise_for ($self) if $map;
1584		1864	$map
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	1865	} or
1586	# if $map;
1587
1588	$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);
1589		1867
1590	$self->leave_link ($map, $x, $y);	1868	$self->leave_link ($map, $x, $y);
1591	})->prio (1);	1869	})->prio (1);
1592	}	1870	}
1593		1871
…		…
1597		1875
1598	sub parse_random_map_params {	1876	sub parse_random_map_params {
1599	my ($spec) = @_;	1877	my ($spec) = @_;
1600		1878
1601	my $rmp = { # defaults	1879	my $rmp = { # defaults
1602	xsize => 10,	1880	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
1604	};	1884	};
1605		1885
1606	for (split /\n/, $spec) {	1886	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	1887	my ($k, $v) = split /\s+/, $_, 2;
1608		1888
…		…
1612	$rmp	1892	$rmp
1613	}	1893	}
1614		1894
1615	sub prepare_random_map {	1895	sub prepare_random_map {
1616	my ($exit) = @_;	1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		1899
1618	# all this does is basically replace the /! path by	1900	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	1901	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	1902	# that depends on the exit object
1621		1903
1622	my $rmp = parse_random_map_params $exit->msg;	1904	my $rmp = parse_random_map_params $exit->msg;
1623		1905
1624	if ($exit->map) {	1906	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	1907	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	1908	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	1909	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	1910	$rmp->{origin_y} = $exit->y;
1629	}	1911	}
1630		1912
1631	$rmp->{random_seed} ||= $exit->random_seed;	1913	$rmp->{random_seed} ||= $exit->random_seed;
1632		1914
1633	my $data = cf::to_json $rmp;	1915	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1635		1918
1636	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) {
1637	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;
1638		1923
1639	$exit->slaying ("?random/$md5");	1924	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	1925	$exit->msg (undef);
1641	}	1926	}
1642	}	1927	}
…		…
1644	sub cf::object::player::enter_exit {	1929	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	1930	my ($self, $exit) = @_;
1646		1931
1647	return unless $self->type == cf::PLAYER;	1932	return unless $self->type == cf::PLAYER;
1648		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
1649	$self->enter_link;	1943	$self->enter_link;
1650		1944
1651	(cf::async {	1945	(async {
1652	$self->deactivate_recursive; # just to be sure	1946	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	1947	unless (eval {
1654	prepare_random_map $exit	1948	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		1949
1660	1;	1950	1;
1661	}) {	1951	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	1952	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "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. "
1664	. "Please report this to the dungeon master",	1954	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	1955	cf::NDI_UNIQUE | cf::NDI_RED);
1666		1956
1667	warn "ERROR in enter_exit: $@";	1957	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	1958	$self->leave_link;
1669	}	1959	}
…		…
1724	# get handled first	2014	# get handled first
1725	my $queue = delete $ns->{query_queue}	2015	my $queue = delete $ns->{query_queue}
1726	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
1727		2017
1728	(shift @$queue)->[1]->($msg);	2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2020
1730	push @{ $ns->{query_queue} }, @$queue;	2021	push @{ $ns->{query_queue} }, @$queue;
1731		2022
1732	if (@{ $ns->{query_queue} } == @$queue) {	2023	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2024	if (@$queue) {
…		…
1737	}	2028	}
1738	}	2029	}
1739	},	2030	},
1740	);	2031	);
1741		2032
1742	=item $client->coro (\&cb)	2033	=item $client->async (\&cb)
1743		2034
1744	Create a new coroutine, running the specified callback. The coroutine will	2035	Create a new coroutine, running the specified callback. The coroutine will
1745	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,
1746	or loss of connection).	2037	or loss of connection).
1747		2038
1748	=cut	2039	=cut
1749		2040
1750	sub cf::client::coro {	2041	sub cf::client::async {
1751	my ($self, $cb) = @_;	2042	my ($self, $cb) = @_;
1752		2043
1753	my $coro = &cf::async ($cb);	2044	my $coro = &Coro::async ($cb);
1754		2045
1755	$coro->on_destroy (sub {	2046	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2047	delete $self->{_coro}{$coro+0};
1757	});	2048	});
1758		2049
…		…
1894	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
1895	using it, it should be unique.	2186	using it, it should be unique.
1896		2187
1897	=over 4	2188	=over 4
1898		2189
1899	=item $hashref = cf::db_get $family
1900
1901	Return a hashref for use by the extension C<$family>, which can be
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904
1905	=item $value = cf::db_get $family => $key	2190	=item $value = cf::db_get $family => $key
1906		2191
1907	Returns a single value from the database	2192	Returns a single value from the database.
1908
1909	=item cf::db_put $family => $hashref
1910
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913		2193
1914	=item cf::db_put $family => $key => $value	2194	=item cf::db_put $family => $key => $value
1915		2195
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you	2196	Stores the given C<$value> in the family.
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926		2197
1927	=cut	2198	=cut
1928		2199
1929	our $DB;	2200	our $DB;
1930		2201
1931	{	2202	sub db_load() {
		2203	unless ($DB) {
		2204	$DB = BDB::db_create $DB_ENV;
		2205
		2206	cf::sync_job {
		2207	eval {
		2208	$DB->set_flags (BDB::CHKSUM);
		2209
		2210	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2211	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2212	cf::cleanup "db_open(db): $!" if $!;
		2213	};
		2214	cf::cleanup "db_open(db): $@" if $@;
		2215	};
		2216
1932	my $path = cf::localdir . "/database.pst";	2217	my $path = cf::localdir . "/database.pst";
		2218	if (stat $path) {
		2219	cf::sync_job {
		2220	my $pst = Storable::retrieve $path;
1933		2221
1934	sub db_load() {	2222	cf::db_put (board => data => $pst->{board});
1935	$DB = stat $path ? Storable::retrieve $path : { };	2223	cf::db_put (guildrules => data => $pst->{guildrules});
1936	}	2224	cf::db_put (rent => balance => $pst->{rent}{balance});
		2225	BDB::db_env_txn_checkpoint $DB_ENV;
1937		2226
1938	my $pid;	2227	unlink $path;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}	2228	};
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});
1960
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {
1967	@_ >= 2
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971
1972	sub db_put($$;$) {
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	2229	}
1986	);	2230	}
		2231	}
		2232
		2233	sub db_get($$) {
		2234	my $key = "$_[0]/$_[1]";
		2235
		2236	cf::sync_job {
		2237	BDB::db_get $DB, undef, $key, my $data;
		2238
		2239	$! ? ()
		2240	: Compress::LZF::sthaw $data
		2241	}
		2242	}
		2243
		2244	sub db_put($$$) {
		2245	BDB::dbreq_pri 4;
		2246	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1987	}	2247	}
1988		2248
1989	#############################################################################	2249	#############################################################################
1990	# the server's main()	2250	# the server's init and main functions
		2251
		2252	sub load_resources {
		2253	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2254	or die "unable to load regions file\n";#d#
		2255	}
1991		2256
1992	sub cfg_load {	2257	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2258	open my $fh, "<:utf8", cf::confdir . "/config"
1994	or return;	2259	or return;
1995		2260
1996	local $/;	2261	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2262	*CFG = YAML::Syck::Load <$fh>;
1998		2263
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		2265
		2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2268
2001	if (exists $CFG{mlockall}) {	2269	if (exists $CFG{mlockall}) {
2002	eval {	2270	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2271	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2272	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2273	};
2006	warn $@ if $@;	2274	warn $@ if $@;
2007	}	2275	}
		2276	}
		2277
		2278	sub init {
		2279	load_resources;
2008	}	2280	}
2009		2281
2010	sub main {	2282	sub main {
2011	# we must not ever block the main coroutine	2283	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2284	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2285	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	2286	(async {
2015	Event::one_event;	2287	Event::one_event;
2016	})->();	2288	})->prio (Coro::PRIO_MAX);
2017	};	2289	};
2018		2290
2019	cfg_load;	2291	cfg_load;
2020	db_load;	2292	db_load;
2021	load_extensions;	2293	load_extensions;
		2294
		2295	$TICK_WATCHER->start;
2022	Event::loop;	2296	Event::loop;
2023	}	2297	}
2024		2298
2025	#############################################################################	2299	#############################################################################
2026	# initialisation	2300	# initialisation and cleanup
		2301
		2302	# install some emergency cleanup handlers
		2303	BEGIN {
		2304	for my $signal (qw(INT HUP TERM)) {
		2305	Event->signal (
		2306	reentrant => 0,
		2307	data => WF_AUTOCANCEL,
		2308	signal => $signal,
		2309	prio => 0,
		2310	cb => sub {
		2311	cf::cleanup "SIG$signal";
		2312	},
		2313	);
		2314	}
		2315	}
		2316
		2317	sub emergency_save() {
		2318	my $freeze_guard = cf::freeze_mainloop;
		2319
		2320	warn "enter emergency perl save\n";
		2321
		2322	cf::sync_job {
		2323	# use a peculiar iteration method to avoid tripping on perl
		2324	# refcount bugs in for. also avoids problems with players
		2325	# and maps saved/destroyed asynchronously.
		2326	warn "begin emergency player save\n";
		2327	for my $login (keys %cf::PLAYER) {
		2328	my $pl = $cf::PLAYER{$login} or next;
		2329	$pl->valid or next;
		2330	$pl->save;
		2331	}
		2332	warn "end emergency player save\n";
		2333
		2334	warn "begin emergency map save\n";
		2335	for my $path (keys %cf::MAP) {
		2336	my $map = $cf::MAP{$path} or next;
		2337	$map->valid or next;
		2338	$map->save;
		2339	}
		2340	warn "end emergency map save\n";
		2341
		2342	warn "begin emergency database checkpoint\n";
		2343	BDB::db_env_txn_checkpoint $DB_ENV;
		2344	warn "end emergency database checkpoint\n";
		2345	};
		2346
		2347	warn "leave emergency perl save\n";
		2348	}
2027		2349
2028	sub reload() {	2350	sub reload() {
2029	# can/must only be called in main	2351	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2352	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2353	warn "can only reload from main coroutine";
2032	return;	2354	return;
2033	}	2355	}
2034		2356
2035	warn "reloading...";	2357	warn "reloading...";
2036		2358
2037	my $guard = freeze_mainloop;	2359	warn "cancelling server ticker";
		2360	$TICK_WATCHER->cancel;
		2361
2038	cf::emergency_save;	2362	cf::emergency_save;
2039		2363
2040	eval {	2364	eval {
2041	# if anything goes wrong in here, we should simply crash as we already saved	2365	# if anything goes wrong in here, we should simply crash as we already saved
2042		2366
2043	# cancel all watchers	2367	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2368	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2369	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2370	}
2047		2371
		2372	warn "syncing database to disk";
		2373	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2374
		2375	warn "flushing outstanding aio requests";
		2376	for (;;) {
		2377	BDB::flush;
		2378	IO::AIO::flush;
		2379	Coro::cede;
		2380	last unless IO::AIO::nreqs || BDB::nreqs;
		2381	warn "iterate...";
		2382	}
		2383
2048	# cancel all extension coros	2384	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2385	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2386	%EXT_CORO = ();
2051		2387
2052	# unload all extensions	2388	warn "removing commands";
2053	for (@exts) {	2389	%COMMAND = ();
		2390
		2391	warn "removing ext commands";
		2392	%EXTCMD = ();
		2393
		2394	warn "unloading/nuking all extensions";
		2395	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2396	warn "... unloading $pkg";
2055	unload_extension $_;	2397
		2398	if (my $cb = $pkg->can ("unload")) {
		2399	eval {
		2400	$cb->($pkg);
		2401	1
		2402	} or warn "$pkg unloaded, but with errors: $@";
2056	}	2403	}
2057		2404
		2405	warn "... nuking $pkg";
		2406	Symbol::delete_package $pkg;
		2407	}
		2408
2058	# unload all modules loaded from $LIBDIR	2409	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2410	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2411	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2412
2062	warn "removing <$k>";	2413	warn "... unloading $k";
2063	delete $INC{$k};	2414	delete $INC{$k};
2064		2415
2065	$k =~ s/\.pm$//;	2416	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2417	$k =~ s/\//::/g;
2067		2418
…		…
2070	}	2421	}
2071		2422
2072	Symbol::delete_package $k;	2423	Symbol::delete_package $k;
2073	}	2424	}
2074		2425
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2426	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2427	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2428	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		2429
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2430	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2431	delete $INC{"cf.pm"};
2088		2432
2089	# don't, removes xs symbols, too,	2433	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2434	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2435	#Symbol::delete_package __PACKAGE__;
2092		2436
2093	# reload cf.pm	2437	warn "unload completed, starting to reload now";
		2438
2094	warn "reloading cf.pm";	2439	warn "reloading cf.pm";
2095	require cf;	2440	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2441	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2442
2098	# load config and database again	2443	warn "loading config and database again";
2099	cf::cfg_load;	2444	cf::cfg_load;
2100	cf::db_load;	2445	cf::db_load;
2101		2446
2102	# load extensions
2103	warn "load extensions";	2447	warn "loading extensions";
2104	cf::load_extensions;	2448	cf::load_extensions;
2105		2449
2106	# reattach attachments to objects	2450	warn "reattaching attachments to objects/players";
2107	warn "reattach";
2108	_global_reattach;	2451	_global_reattach;
		2452	warn "reattaching attachments to maps";
		2453	reattach $_ for values %MAP;
		2454
		2455	warn "loading reloadable resources";
		2456	load_resources;
		2457
		2458	warn "restarting server ticker";
		2459
		2460	$TICK_WATCHER->start;
2109	};	2461	};
2110		2462
2111	if ($@) {	2463	if ($@) {
2112	warn $@;	2464	warn $@;
2113	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
2114	exit 1;	2466	exit 1;
2115	}	2467	}
2116		2468
2117	warn "reloaded successfully";	2469	warn "reloaded";
2118	};	2470	};
2119		2471
2120	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}
2162
2163	register "<global>", __PACKAGE__;
2164		2473
2165	register_command "reload" => sub {	2474	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
2167		2476
2168	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");	2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
2170	reload;	2488	reload;
2171	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
2172	}	2492	}
2173	};	2493	};
2174		2494
2175	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
2176		2498
2177	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
2179	prio => 0,	2502	prio => 0,
2180	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
2182	cb => sub {	2505	cb => sub {
		2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
2183	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	$WAIT_FOR_TICK->broadcast;
		2519	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2520
		2521	Event::sweep;
		2522	Coro::cede_notself;
		2523
		2524	# my $AFTER = Event::time;
		2525	# warn $AFTER - $NOW;#d#
2186		2526
2187	# if we are delayed by four ticks or more, skip them all	2527	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2528	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		2529
2190	$TICK_WATCHER->at ($NEXT_TICK);	2530	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	2531	$TICK_WATCHER->start;
2192	},	2532	},
2193	);	2533	);
2194		2534
		2535	{
		2536	BDB::max_poll_time $TICK * 0.1;
		2537	$BDB_POLL_WATCHER = Event->io (
		2538	reentrant => 0,
		2539	fd => BDB::poll_fileno,
		2540	poll => 'r',
		2541	prio => 0,
		2542	data => WF_AUTOCANCEL,
		2543	cb => \&BDB::poll_cb,
		2544	);
		2545	BDB::min_parallel 8;
		2546
		2547	BDB::set_sync_prepare {
		2548	my $status;
		2549	my $current = $Coro::current;
		2550	(
		2551	sub {
		2552	$status = $!;
		2553	$current->ready; undef $current;
		2554	},
		2555	sub {
		2556	Coro::schedule while defined $current;
		2557	$! = $status;
		2558	},
		2559	)
		2560	};
		2561
		2562	unless ($DB_ENV) {
		2563	$DB_ENV = BDB::db_env_create;
		2564
		2565	cf::sync_job {
		2566	eval {
		2567	BDB::db_env_open
		2568	$DB_ENV,
		2569	$BDB_ENV_DIR,
		2570	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2571	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2572	0666;
		2573
		2574	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2575
		2576	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2577	$DB_ENV->set_lk_detect;
		2578	};
		2579
		2580	cf::cleanup "db_env_open(db): $@" if $@;
		2581	};
		2582	}
		2583	}
		2584
		2585	{
		2586	IO::AIO::min_parallel 8;
		2587
		2588	undef $Coro::AIO::WATCHER;
2195	IO::AIO::max_poll_time $TICK * 0.2;	2589	IO::AIO::max_poll_time $TICK * 0.1;
2196		2590	$AIO_POLL_WATCHER = Event->io (
2197	Event->io (	2591	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	2592	fd => IO::AIO::poll_fileno,
2199	poll => 'r',	2593	poll => 'r',
2200	prio => 5,	2594	prio => 6,
2201	data => WF_AUTOCANCEL,	2595	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,	2596	cb => \&IO::AIO::poll_cb,
2203	);	2597	);
		2598	}
2204		2599
2205	Event->timer (	2600	$WRITE_RUNTIME_WATCHER = Event->timer (
		2601	reentrant => 0,
2206	data => WF_AUTOCANCEL,	2602	data => WF_AUTOCANCEL,
2207	after => 0,	2603	after => 1,
2208	interval => 10,	2604	interval => 10,
2209	cb => sub {	2605	prio => 6, # keep it lowest so it acts like a watchdog
2210	(Coro::unblock_sub {	2606	cb => Coro::unblock_sub {
2211	write_runtime	2607	write_runtime
2212	or warn "ERROR: unable to write runtime file: $!";	2608	or warn "ERROR: unable to write runtime file: $!";
2213	})->();
2214	},	2609	},
2215	);	2610	);
2216		2611
2217	END { cf::emergency_save }	2612	END { cf::emergency_save }
2218		2613

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