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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
		48	our $RELOAD; # number of reloads so far
39	our @EVENT;	49	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	50	our $LIBDIR = datadir . "/ext";
41		51
42	our $TICK = MAX_TIME * 1e-6;	52	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	53	our $TICK_WATCHER;
		54	our $AIO_POLL_WATCHER;
		55	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	56	our $NEXT_TICK;
45	our $NOW;	57	our $NOW;
		58	our $USE_FSYNC = 1; # use fsync to write maps - default off
		59
		60	our $BDB_POLL_WATCHER;
		61	our $DB_ENV;
46		62
47	our %CFG;	63	our %CFG;
48		64
49	our $UPTIME; $UPTIME ||= time;	65	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	66	our $RUNTIME;
51		67
		68	our %PLAYER; # all users
52	our %MAP; # all maps	69	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	70	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	71	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	72	our $BDB_ENV_DIR = cf::localdir . "/db";
		73
		74	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		75	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		76
		77	# used to convert map paths into valid unix filenames by replacing / by ∕
		78	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		79
57	binmode STDOUT;	80	binmode STDOUT;
58	binmode STDERR;	81	binmode STDERR;
59		82
60	# read virtual server time, if available	83	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	90	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	91	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	92	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	93	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	94	mkdir $RANDOM_MAPS;
		95	mkdir $BDB_ENV_DIR;
72		96
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	97	our $EMERGENCY_POSITION;
		98
		99	sub cf::map::normalise;
76		100
77	#############################################################################	101	#############################################################################
78		102
79	=head2 GLOBAL VARIABLES	103	=head2 GLOBAL VARIABLES
80		104
…		…
104		128
105	=item %cf::CFG	129	=item %cf::CFG
106		130
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	131	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	132	from wherever your confdir points to.
		133
		134	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		135
		136	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		137	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		138	processing has been done. Call C<< ->wait >> on them to maximise the
		139	window of cpu time available, or simply to synchronise to the server tick.
109		140
110	=back	141	=back
111		142
112	=cut	143	=cut
113		144
…		…
117	utf8::encode $msg;	148	utf8::encode $msg;
118		149
119	$msg .= "\n"	150	$msg .= "\n"
120	unless $msg =~ /\n$/;	151	unless $msg =~ /\n$/;
121		152
122	LOG llevError, "cfperl: $msg";	153	LOG llevError, $msg;
123	};	154	};
124	}	155	}
125		156
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	157	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	158	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		176
146	$Event::DIED = sub {	177	$Event::DIED = sub {
147	warn "error in event callback: @_";	178	warn "error in event callback: @_";
148	};	179	};
149		180
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	181	=head2 UTILITY FUNCTIONS
155		182
156	=over 4	183	=over 4
157		184
		185	=item dumpval $ref
		186
158	=cut	187	=cut
		188
		189	sub dumpval {
		190	eval {
		191	local $SIG{__DIE__};
		192	my $d;
		193	if (1) {
		194	$d = new Data::Dumper([$_[0]], ["*var"]);
		195	$d->Terse(1);
		196	$d->Indent(2);
		197	$d->Quotekeys(0);
		198	$d->Useqq(1);
		199	#$d->Bless(...);
		200	$d->Seen($_[1]) if @_ > 1;
		201	$d = $d->Dump();
		202	}
		203	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		204	$d
		205	} || "[unable to dump $_[0]: '$@']";
		206	}
159		207
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	208	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		209
162	=item $ref = cf::from_json $json	210	=item $ref = cf::from_json $json
163		211
…		…
221	# wake up all waiters, to be on the safe side	269	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	270	$_->ready for @{ delete $LOCK{$key} };
223	}	271	}
224	}	272	}
225		273
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 {	274	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	275	return unless $TICK_WATCHER->is_active;
244		276
245	my $guard = Coro::guard { $TICK_WATCHER->start };	277	my $guard = Coro::guard {
		278	$TICK_WATCHER->start;
		279	};
246	$TICK_WATCHER->stop;	280	$TICK_WATCHER->stop;
247	$guard	281	$guard
248	}	282	}
		283
		284	=item cf::async { BLOCK }
		285
		286	Currently the same as Coro::async_pool, meaning you cannot use
		287	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		288	thing you are allowed to do is call C<prio> on it.
		289
		290	=cut
		291
		292	BEGIN { *async = \&Coro::async_pool }
249		293
250	=item cf::sync_job { BLOCK }	294	=item cf::sync_job { BLOCK }
251		295
252	The design of crossfire+ requires that the main coro ($Coro::main) is	296	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	297	always able to handle events or runnable, as crossfire+ is only partly
…		…
272	my $freeze_guard = freeze_mainloop;	316	my $freeze_guard = freeze_mainloop;
273		317
274	my $busy = 1;	318	my $busy = 1;
275	my @res;	319	my @res;
276		320
277	(Coro::async {	321	(async {
278	@res = eval { $job->() };	322	@res = eval { $job->() };
279	warn $@ if $@;	323	warn $@ if $@;
280	undef $busy;	324	undef $busy;
281	})->prio (Coro::PRIO_MAX);	325	})->prio (Coro::PRIO_MAX);
282		326
283	while ($busy) {	327	while ($busy) {
284	Coro::cede_notself;	328	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	329	}
287		330
288	wantarray ? @res : $res[0]	331	wantarray ? @res : $res[0]
289	} else {	332	} else {
290	# we are in another coroutine, how wonderful, everything just works	333	# we are in another coroutine, how wonderful, everything just works
291		334
292	$job->()	335	$job->()
293	}	336	}
294	}	337	}
295		338
296	=item $coro = cf::coro { BLOCK }	339	=item $coro = cf::async_ext { BLOCK }
297		340
298	Creates and returns a new coro. This coro is automcatially being canceled	341	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	342	extension calling this is being unloaded.
300		343
301	=cut	344	=cut
302		345
303	sub coro(&) {	346	sub async_ext(&) {
304	my $cb = shift;	347	my $cb = shift;
305		348
306	my $coro = &cf::async ($cb);	349	my $coro = &Coro::async ($cb);
307		350
308	$coro->on_destroy (sub {	351	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	352	delete $EXT_CORO{$coro+0};
310	});	353	});
311	$EXT_CORO{$coro+0} = $coro;	354	$EXT_CORO{$coro+0} = $coro;
312		355
313	$coro	356	$coro
314	}	357	}
315		358
316	sub write_runtime {	359	sub write_runtime {
		360	my $guard = cf::lock_acquire "write_runtime";
		361
317	my $runtime = cf::localdir . "/runtime";	362	my $runtime = cf::localdir . "/runtime";
318		363
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	364	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	365	or return;
321		366
		367	my $value = $cf::RUNTIME + 90 + 10;
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	368	# 10 is the runtime save interval, for a monotonic clock
		369	# 60 allows for the watchdog to kill the server.
		370
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	371	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	372	and return;
325		373
		374	# always fsync - this file is important
326	aio_fsync $fh	375	aio_fsync $fh
327	and return;	376	and return;
328		377
329	close $fh	378	close $fh
330	or return;	379	or return;
…		…
336	}	385	}
337		386
338	=back	387	=back
339		388
340	=cut	389	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($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		390
462	#############################################################################	391	#############################################################################
463		392
464	=head2 ATTACHABLE OBJECTS	393	=head2 ATTACHABLE OBJECTS
465		394
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	520	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	521	our @CB_MAP = ();
593		522
594	my %attachment;	523	my %attachment;
595		524
		525	sub cf::attachable::thawer_merge {
		526	# simply override everything except _meta
		527	local $_[0]{_meta};
		528	%{$_[0]} = %{$_[1]};
		529	}
		530
596	sub _attach_cb($$$$) {	531	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	532	my ($registry, $event, $prio, $cb) = @_;
598		533
599	use sort 'stable';	534	use sort 'stable';
600		535
…		…
771	# object support	706	# object support
772		707
773	sub reattach {	708	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	709	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	710	my ($obj) = @_;
		711
		712	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		713
777	my $registry = $obj->registry;	714	my $registry = $obj->registry;
778		715
779	@$registry = ();	716	@$registry = ();
780		717
…		…
827	$filename, length $$rdata, scalar @$objs;	764	$filename, length $$rdata, scalar @$objs;
828		765
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	766	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	767	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	768	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	769	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	770	close $fh;
834		771
835	if (@$objs) {	772	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	773	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	774	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	775	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	776	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	777	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	778	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	779	aio_rename "$filename.pst~", "$filename.pst";
843	}	780	}
844	} else {	781	} else {
845	aio_unlink "$filename.pst";	782	aio_unlink "$filename.pst";
…		…
912	=cut	849	=cut
913		850
914	sub register_extcmd {	851	sub register_extcmd {
915	my ($name, $cb) = @_;	852	my ($name, $cb) = @_;
916		853
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	854	$EXTCMD{$name} = $cb;
921	}	855	}
922		856
923	cf::player->attach (	857	cf::player->attach (
924	on_command => sub {	858	on_command => sub {
925	my ($pl, $name, $params) = @_;	859	my ($pl, $name, $params) = @_;
…		…
938		872
939	my $msg = eval { from_json $buf };	873	my $msg = eval { from_json $buf };
940		874
941	if (ref $msg) {	875	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	877	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	878	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	879	}
946	}	880	}
947	} else {	881	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	882	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		884
951	cf::override;	885	cf::override;
952	},	886	},
953	);	887	);
954		888
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	889	sub load_extension {
962	my ($path) = @_;	890	my ($path) = @_;
963		891
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	893	my $base = $1;
966	my $pkg = $1;	894	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	895	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	896	$pkg = "ext::$pkg";
969		897
970	warn "loading '$path' into '$pkg'\n";	898	warn "... loading '$path' into '$pkg'\n";
971		899
972	open my $fh, "<:utf8", $path	900	open my $fh, "<:utf8", $path
973	or die "$path: $!";	901	or die "$path: $!";
974		902
975	my $source =	903	my $source =
976	"package $pkg; use strict; use utf8;\n"	904	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	905	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	906	. (do { local $/; <$fh> })
979	. "\n};\n1";	907	. "\n};\n1";
980		908
981	eval $source	909	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	910	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	911	: "extension disabled.\n";
984		912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	913	warn $@;
986	$ext_pkg{$base} = $pkg;	914	warn "mandatory extension failed to load, exiting.\n";
987		915	exit 1;
988	# no strict 'refs';	916	}
989	# @{"$pkg\::ISA"} = ext::;	917	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	# }	918	}
1004		919
1005	# remove commands	920	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	}	921	}
1030		922
1031	sub load_extensions {	923	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	924	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	925	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	929	} or warn "$ext not loaded: $@";
1038	}	930	}
1039	}	931	}
1040		932
1041	#############################################################################	933	#############################################################################
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		934
1079	=head2 CORE EXTENSIONS	935	=head2 CORE EXTENSIONS
1080		936
1081	Functions and methods that extend core crossfire objects.	937	Functions and methods that extend core crossfire objects.
1082		938
		939	=cut
		940
		941	package cf::player;
		942
		943	use Coro::AIO;
		944
1083	=head3 cf::player	945	=head3 cf::player
1084		946
1085	=over 4	947	=over 4
1086		948
1087	=item cf::player::exists $login	949	=item cf::player::find $login
1088		950
1089	Returns true when the given account exists.	951	Returns the given player object, loading it if necessary (might block).
1090		952
1091	=cut	953	=cut
1092		954
1093	sub cf::player::exists($) {	955	sub playerdir($) {
1094	cf::player::find $_[0]	956	cf::localdir
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	957	. "/"
		958	. cf::playerdir
		959	. "/"
		960	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		961	}
		962
		963	sub path($) {
		964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		965
		966	(playerdir $login) . "/$login.pl"
		967	}
		968
		969	sub find_active($) {
		970	$cf::PLAYER{$_[0]}
		971	and $cf::PLAYER{$_[0]}->active
		972	and $cf::PLAYER{$_[0]}
		973	}
		974
		975	sub exists($) {
		976	my ($login) = @_;
		977
		978	$cf::PLAYER{$login}
		979	or cf::sync_job { !aio_stat path $login }
		980	}
		981
		982	sub find($) {
		983	return $cf::PLAYER{$_[0]} || do {
		984	my $login = $_[0];
		985
		986	my $guard = cf::lock_acquire "user_find:$login";
		987
		988	$cf::PLAYER{$_[0]} || do {
		989	my $pl = load_pl path $login
		990	or return;
		991	$cf::PLAYER{$login} = $pl
		992	}
		993	}
		994	}
		995
		996	sub save($) {
		997	my ($pl) = @_;
		998
		999	return if $pl->{deny_save};
		1000
		1001	my $path = path $pl;
		1002	my $guard = cf::lock_acquire "user_save:$path";
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	aio_mkdir playerdir $pl, 0770;
		1007	$pl->{last_save} = $cf::RUNTIME;
		1008
		1009	$pl->save_pl ($path);
		1010	Coro::cede;
		1011	}
		1012
		1013	sub new($) {
		1014	my ($login) = @_;
		1015
		1016	my $self = create;
		1017
		1018	$self->ob->name ($login);
		1019	$self->{deny_save} = 1;
		1020
		1021	$cf::PLAYER{$login} = $self;
		1022
		1023	$self
		1024	}
		1025
		1026	=item $pl->quit_character
		1027
		1028	Nukes the player without looking back. If logged in, the connection will
		1029	be destroyed. May block for a long time.
		1030
		1031	=cut
		1032
		1033	sub quit_character {
		1034	my ($pl) = @_;
		1035
		1036	my $name = $pl->ob->name;
		1037
		1038	$pl->{deny_save} = 1;
		1039	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1040
		1041	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1042	$pl->deactivate;
		1043	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1044	$pl->ns->destroy if $pl->ns;
		1045
		1046	my $path = playerdir $pl;
		1047	my $temp = "$path~$cf::RUNTIME~deleting~";
		1048	aio_rename $path, $temp;
		1049	delete $cf::PLAYER{$pl->ob->name};
		1050	$pl->destroy;
		1051
		1052	my $prefix = qr<^~\Q$name\E/>;
		1053
		1054	# nuke player maps
		1055	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1056
		1057	IO::AIO::aio_rmtree $temp;
		1058	}
		1059
		1060	=item $pl->kick
		1061
		1062	Kicks a player out of the game. This destroys the connection.
		1063
		1064	=cut
		1065
		1066	sub kick {
		1067	my ($pl, $kicker) = @_;
		1068
		1069	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1070	$pl->killer ("kicked");
		1071	$pl->ns->destroy;
		1072	}
		1073
		1074	=item cf::player::list_logins
		1075
		1076	Returns am arrayref of all valid playernames in the system, can take a
		1077	while and may block, so not sync_job-capable, ever.
		1078
		1079	=cut
		1080
		1081	sub list_logins {
		1082	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1083	or return [];
		1084
		1085	my @logins;
		1086
		1087	for my $login (@$dirs) {
		1088	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1089	aio_read $fh, 0, 512, my $buf, 0 or next;
		1090	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1091
		1092	utf8::decode $login;
		1093	push @logins, $login;
		1094	}
		1095
		1096	\@logins
		1097	}
		1098
		1099	=item $player->maps
		1100
		1101	Returns an arrayref of map paths that are private for this
		1102	player. May block.
		1103
		1104	=cut
		1105
		1106	sub maps($) {
		1107	my ($pl) = @_;
		1108
		1109	$pl = ref $pl ? $pl->ob->name : $pl;
		1110
		1111	my $files = aio_readdir playerdir $pl
		1112	or return;
		1113
		1114	my @paths;
		1115
		1116	for (@$files) {
		1117	utf8::decode $_;
		1118	next if /\.(?:pl|pst)$/;
		1119	next unless /^$PATH_SEP/o;
		1120
		1121	push @paths, cf::map::normalise "~$pl/$_";
		1122	}
		1123
		1124	\@paths
1096	}	1125	}
1097		1126
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1127	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099		1128
1100	Sends an ext reply to the player.	1129	Sends an ext reply to the player.
1101		1130
1102	=cut	1131	=cut
1103		1132
1104	sub cf::player::ext_reply($$$%) {	1133	sub ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;	1134	my ($self, $id, %msg) = @_;
1106		1135
1107	$msg{msgid} = $id;	1136	$msg{msgid} = $id;
1108		1137
1109	$self->send ("ext " . to_json \%msg);	1138	$self->send ("ext " . cf::to_json \%msg);
1110	}	1139	}
		1140
		1141	package cf;
1111		1142
1112	=back	1143	=back
1113		1144
1114		1145
1115	=head3 cf::map	1146	=head3 cf::map
…		…
1121	package cf::map;	1152	package cf::map;
1122		1153
1123	use Fcntl;	1154	use Fcntl;
1124	use Coro::AIO;	1155	use Coro::AIO;
1125		1156
		1157	use overload
		1158	'""' => \&as_string,
		1159	fallback => 1;
		1160
1126	our $MAX_RESET = 3600;	1161	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1162	our $DEFAULT_RESET = 3000;
1128		1163
1129	sub generate_random_map {	1164	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1165	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1166	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1167	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1168	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1169	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1170	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1171	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1172	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1173	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1174	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1175	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1176	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1177	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1178	(cf::region::find $rmp->{region}), $rmp->{custom}
		1179	)
		1180	}
		1181
		1182	=item cf::map->register ($regex, $prio)
		1183
		1184	Register a handler for the map path matching the given regex at the
		1185	givne priority (higher is better, built-in handlers have priority 0, the
		1186	default).
		1187
		1188	=cut
		1189
		1190	sub register {
		1191	my (undef, $regex, $prio) = @_;
		1192	my $pkg = caller;
		1193
		1194	no strict;
		1195	push @{"$pkg\::ISA"}, __PACKAGE__;
		1196
		1197	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1198	}
		1199
		1200	# also paths starting with '/'
		1201	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1202
		1203	sub thawer_merge {
		1204	my ($self, $merge) = @_;
		1205
		1206	# we have to keep some variables in memory intact
		1207	local $self->{path};
		1208	local $self->{load_path};
		1209	local $self->{deny_save};
		1210	local $self->{deny_reset};
		1211
		1212	$self->SUPER::thawer_merge ($merge);
		1213	}
		1214
		1215	sub normalise {
		1216	my ($path, $base) = @_;
		1217
		1218	$path = "$path"; # make sure its a string
		1219
		1220	$path =~ s/\.map$//;
		1221
		1222	# map plan:
		1223	#
		1224	# /! non-realised random map exit (special hack!)
		1225	# {... are special paths that are not being touched
		1226	# ?xxx/... are special absolute paths
		1227	# ?random/... random maps
		1228	# /... normal maps
		1229	# ~user/... per-player map of a specific user
		1230
		1231	$path =~ s/$PATH_SEP/\//go;
		1232
		1233	# treat it as relative path if it starts with
		1234	# something that looks reasonable
		1235	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1236	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1237
		1238	$base =~ s{[^/]+/?$}{};
		1239	$path = "$base/$path";
		1240	}
		1241
		1242	for ($path) {
		1243	redo if s{//}{/};
		1244	redo if s{/\.?/}{/};
		1245	redo if s{/[^/]+/\.\./}{/};
		1246	}
		1247
		1248	$path
		1249	}
		1250
		1251	sub new_from_path {
		1252	my (undef, $path, $base) = @_;
		1253
		1254	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1255
		1256	$path = normalise $path, $base;
		1257
		1258	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1259	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1260	my $self = bless cf::map::new, $pkg;
		1261	$self->{path} = $path; $self->path ($path);
		1262	$self->init; # pass $1 etc.
		1263	return $self;
		1264	}
		1265	}
		1266
		1267	Carp::carp "unable to resolve path '$path' (base '$base').";
		1268	()
		1269	}
		1270
		1271	sub init {
		1272	my ($self) = @_;
		1273
		1274	$self
		1275	}
		1276
		1277	sub as_string {
		1278	my ($self) = @_;
		1279
		1280	"$self->{path}"
		1281	}
		1282
		1283	# the displayed name, this is a one way mapping
		1284	sub visible_name {
		1285	&as_string
		1286	}
		1287
		1288	# the original (read-only) location
		1289	sub load_path {
		1290	my ($self) = @_;
		1291
		1292	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1293	}
		1294
		1295	# the temporary/swap location
		1296	sub save_path {
		1297	my ($self) = @_;
		1298
		1299	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1300	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1301	}
		1302
		1303	# the unique path, undef == no special unique path
		1304	sub uniq_path {
		1305	my ($self) = @_;
		1306
		1307	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1308	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146	}	1309	}
1147		1310
1148	# and all this just because we cannot iterate over	1311	# and all this just because we cannot iterate over
1149	# all maps in C++...	1312	# all maps in C++...
1150	sub change_all_map_light {	1313	sub change_all_map_light {
…		…
1152		1315
1153	$_->change_map_light ($change)	1316	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1317	for grep $_->outdoor, values %cf::MAP;
1155	}	1318	}
1156		1319
		1320	sub unlink_save {
		1321	my ($self) = @_;
		1322
		1323	utf8::encode (my $save = $self->save_path);
		1324	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1325	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1326	}
		1327
1157	sub try_load_header($) {	1328	sub load_header_from($) {
1158	my ($path) = @_;	1329	my ($self, $path) = @_;
1159		1330
1160	utf8::encode $path;	1331	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1332	#aio_open $path, O_RDONLY, 0
		1333	# or return;
		1334
		1335	$self->_load_header ($path)
1162	or return;	1336	or return;
1163		1337
1164	my $map = cf::map::new	1338	$self->{load_path} = $path;
		1339
		1340	1
		1341	}
		1342
		1343	sub load_header_orig {
		1344	my ($self) = @_;
		1345
		1346	$self->load_header_from ($self->load_path)
		1347	}
		1348
		1349	sub load_header_temp {
		1350	my ($self) = @_;
		1351
		1352	$self->load_header_from ($self->save_path)
		1353	}
		1354
		1355	sub prepare_temp {
		1356	my ($self) = @_;
		1357
		1358	$self->last_access ((delete $self->{last_access})
		1359	|| $cf::RUNTIME); #d#
		1360	# safety
		1361	$self->{instantiate_time} = $cf::RUNTIME
		1362	if $self->{instantiate_time} > $cf::RUNTIME;
		1363	}
		1364
		1365	sub prepare_orig {
		1366	my ($self) = @_;
		1367
		1368	$self->{load_original} = 1;
		1369	$self->{instantiate_time} = $cf::RUNTIME;
		1370	$self->last_access ($cf::RUNTIME);
		1371	$self->instantiate;
		1372	}
		1373
		1374	sub load_header {
		1375	my ($self) = @_;
		1376
		1377	if ($self->load_header_temp) {
		1378	$self->prepare_temp;
		1379	} else {
		1380	$self->load_header_orig
1165	or return;	1381	or return;
		1382	$self->prepare_orig;
		1383	}
1166		1384
1167	# for better error messages only, will be overwritten	1385	1
1168	$map->path ($path);
1169
1170	$map->load_header ($path)
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1386	}
1177		1387
1178	sub find;	1388	sub find;
1179	sub find {	1389	sub find {
1180	my ($path, $origin) = @_;	1390	my ($path, $origin) = @_;
1181		1391
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1392	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1393
1187	cf::lock_wait "map_find:$key";	1394	cf::lock_wait "map_find:$path";
1188		1395
1189	$cf::MAP{$key} || do {	1396	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1397	my $guard = cf::lock_acquire "map_find:$path";
1191		1398	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;	1399	or return;
1211		1400
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;	1401	$map->{last_save} = $cf::RUNTIME;
1224		1402
1225	Coro::cede;	1403	$map->load_header
		1404	or return;
1226		1405
1227	if ($map->should_reset) {	1406	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1407	# doing this can freeze the server in a sync job, obviously
		1408	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1409	$map->reset;
1229	undef $guard;	1410	undef $guard;
1230	$map = find $path	1411	return find $path;
1231	or return;
1232	}	1412	}
1233		1413
1234	$cf::MAP{$key} = $map	1414	$cf::MAP{$path} = $map
1235	}	1415	}
1236	}	1416	}
		1417
		1418	sub pre_load { }
		1419	sub post_load { }
1237		1420
1238	sub load {	1421	sub load {
1239	my ($self) = @_;	1422	my ($self) = @_;
1240		1423
		1424	local $self->{deny_reset} = 1; # loading can take a long time
		1425
1241	my $path = $self->{path};	1426	my $path = $self->{path};
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1427	my $guard = cf::lock_acquire "map_load:$path";
1243		1428
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1429	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1430
1246	$self->in_memory (cf::MAP_LOADING);	1431	$self->in_memory (cf::MAP_LOADING);
1247		1432
1248	$self->alloc;	1433	$self->alloc;
		1434
		1435	$self->pre_load;
		1436
1249	$self->load_objects ($self->{load_path}, 1)	1437	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1438	or return;
1251		1439
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1440	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1441	if delete $self->{load_original};
1254		1442
1255	if (my $uniq = $path->uniq_path) {	1443	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1444	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1445	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1446	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1447	$self->_load_objects ($uniq, 0);
1260	}	1448	}
1261	}	1449	}
1262		1450
1263	Coro::cede;	1451	Coro::cede;
1264		1452
1265	# now do the right thing for maps	1453	# now do the right thing for maps
1266	$self->link_multipart_objects;	1454	$self->link_multipart_objects;
1267		1455
1268	if ($self->{path}->is_style_map) {	1456	unless ($self->{deny_activate}) {
1269	$self->{deny_save} = 1;	1457	$self->decay_objects;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;	1458	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;	1459	$self->update_buttons;
		1460	Coro::cede;
1275	$self->set_darkness_map;	1461	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1462	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1463	unless $self->difficulty;
		1464	Coro::cede;
1278	$self->activate;	1465	$self->activate;
1279	}	1466	}
1280		1467
1281	Coro::cede;	1468	$self->post_load;
1282		1469
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1470	$self->in_memory (cf::MAP_IN_MEMORY);
		1471	}
		1472
		1473	sub customise_for {
		1474	my ($self, $ob) = @_;
		1475
		1476	return find "~" . $ob->name . "/" . $self->{path}
		1477	if $self->per_player;
		1478
		1479	$self
		1480	}
		1481
		1482	# find and load all maps in the 3x3 area around a map
		1483	sub load_diag {
		1484	my ($map) = @_;
		1485
		1486	my @diag; # diagonal neighbours
		1487
		1488	for (0 .. 3) {
		1489	my $neigh = $map->tile_path ($_)
		1490	or next;
		1491	$neigh = find $neigh, $map
		1492	or next;
		1493	$neigh->load;
		1494
		1495	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1496	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1497	}
		1498
		1499	for (@diag) {
		1500	my $neigh = find @$_
		1501	or next;
		1502	$neigh->load;
		1503	}
1284	}	1504	}
1285		1505
1286	sub find_sync {	1506	sub find_sync {
1287	my ($path, $origin) = @_;	1507	my ($path, $origin) = @_;
1288		1508
1289	cf::sync_job { cf::map::find $path, $origin }	1509	cf::sync_job { find $path, $origin }
1290	}	1510	}
1291		1511
1292	sub do_load_sync {	1512	sub do_load_sync {
1293	my ($map) = @_;	1513	my ($map) = @_;
1294		1514
1295	cf::sync_job { $map->load };	1515	cf::sync_job { $map->load };
1296	}	1516	}
1297		1517
		1518	our %MAP_PREFETCH;
		1519	our $MAP_PREFETCHER = undef;
		1520
		1521	sub find_async {
		1522	my ($path, $origin) = @_;
		1523
		1524	$path = normalise $path, $origin && $origin->{path};
		1525
		1526	if (my $map = $cf::MAP{$path}) {
		1527	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1528	}
		1529
		1530	undef $MAP_PREFETCH{$path};
		1531	$MAP_PREFETCHER ||= cf::async {
		1532	while (%MAP_PREFETCH) {
		1533	for my $path (keys %MAP_PREFETCH) {
		1534	my $map = find $path
		1535	or next;
		1536	$map->load;
		1537
		1538	delete $MAP_PREFETCH{$path};
		1539	}
		1540	}
		1541	undef $MAP_PREFETCHER;
		1542	};
		1543	$MAP_PREFETCHER->prio (6);
		1544
		1545	()
		1546	}
		1547
1298	sub save {	1548	sub save {
1299	my ($self) = @_;	1549	my ($self) = @_;
1300		1550
		1551	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1552
1301	$self->{last_save} = $cf::RUNTIME;	1553	$self->{last_save} = $cf::RUNTIME;
1302		1554
1303	return unless $self->dirty;	1555	return unless $self->dirty;
1304		1556
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1557	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1558	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1559
1308	$self->{load_path} = $save;	1560	$self->{load_path} = $save;
1309		1561
1310	return if $self->{deny_save};	1562	return if $self->{deny_save};
1311		1563
1312	local $self->{last_access} = $self->last_access;#d#	1564	local $self->{last_access} = $self->last_access;#d#
1313		1565
		1566	cf::async {
		1567	$_->contr->save for $self->players;
		1568	};
		1569
1314	if ($uniq) {	1570	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1571	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1572	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1573	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1574	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1575	}
1320	}	1576	}
1321		1577
1322	sub swap_out {	1578	sub swap_out {
1323	my ($self) = @_;	1579	my ($self) = @_;
1324		1580
1325	# save first because save cedes	1581	# save first because save cedes
1326	$self->save;	1582	$self->save;
		1583
		1584	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1585
1328	return if $self->players;	1586	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1587	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1588	return if $self->{deny_save};
1331		1589
…		…
1335		1593
1336	sub reset_at {	1594	sub reset_at {
1337	my ($self) = @_;	1595	my ($self) = @_;
1338		1596
1339	# TODO: safety, remove and allow resettable per-player maps	1597	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1598	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1599	return 1e99 if $self->{deny_reset};
1342		1600
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1601	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1602	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1603
…		…
1350	my ($self) = @_;	1608	my ($self) = @_;
1351		1609
1352	$self->reset_at <= $cf::RUNTIME	1610	$self->reset_at <= $cf::RUNTIME
1353	}	1611	}
1354		1612
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 {	1613	sub reset {
1377	my ($self) = @_;	1614	my ($self) = @_;
1378		1615
		1616	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1617
1379	return if $self->players;	1618	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1619	return if $self->isa ("ext::map_per_player");#d#
1381		1620
1382	warn "resetting map ", $self->path;#d#	1621	warn "resetting map ", $self->path;#d#
1383		1622
		1623	$self->in_memory (cf::MAP_SWAPPED);
		1624
		1625	# need to save uniques path
		1626	unless ($self->{deny_save}) {
		1627	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1628
		1629	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1630	if $uniq;
		1631	}
		1632
1384	delete $cf::MAP{$self->path};	1633	delete $cf::MAP{$self->path};
		1634
		1635	$self->clear;
1385		1636
1386	$_->clear_links_to ($self) for values %cf::MAP;	1637	$_->clear_links_to ($self) for values %cf::MAP;
1387		1638
1388	$self->unlink_save;	1639	$self->unlink_save;
1389	$self->destroy;	1640	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1643	my $nuke_counter = "aaaa";
1393		1644
1394	sub nuke {	1645	sub nuke {
1395	my ($self) = @_;	1646	my ($self) = @_;
1396		1647
		1648	delete $cf::MAP{$self->path};
		1649
		1650	$self->unlink_save;
		1651
		1652	bless $self, "cf::map";
		1653	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1654	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1655	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1656	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1657
		1658	$cf::MAP{$self->path} = $self;
		1659
1400	$self->reset; # polite request, might not happen	1660	$self->reset; # polite request, might not happen
1401	}	1661	}
1402		1662
1403	sub customise_for {	1663	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1664
1406	if ($map->per_player) {	1665	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1666	instantiated unique items. May block.
1408	}
1409		1667
1410	$map	1668	=cut
1411	}
1412		1669
1413	sub emergency_save {	1670	sub unique_maps() {
1414	my $freeze_guard = cf::freeze_mainloop;	1671	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1672	or return;
1415		1673
1416	warn "enter emergency map save\n";	1674	my @paths;
1417		1675
1418	cf::sync_job {	1676	for (@$files) {
1419	warn "begin emergency map save\n";	1677	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1678	next if /\.pst$/;
		1679	next unless /^$PATH_SEP/o;
		1680
		1681	push @paths, cf::map::normalise $_;
1421	};	1682	}
1422		1683
1423	warn "end emergency map save\n";	1684	\@paths
1424	}	1685	}
1425		1686
1426	package cf;	1687	package cf;
1427		1688
1428	=back	1689	=back
1429		1690
		1691	=head3 cf::object
		1692
		1693	=cut
		1694
		1695	package cf::object;
		1696
		1697	=over 4
		1698
		1699	=item $ob->inv_recursive
		1700
		1701	Returns the inventory of the object _and_ their inventories, recursively.
		1702
		1703	=cut
		1704
		1705	sub inv_recursive_;
		1706	sub inv_recursive_ {
		1707	map { $_, inv_recursive_ $_->inv } @_
		1708	}
		1709
		1710	sub inv_recursive {
		1711	inv_recursive_ inv $_[0]
		1712	}
		1713
		1714	package cf;
		1715
		1716	=back
1430		1717
1431	=head3 cf::object::player	1718	=head3 cf::object::player
1432		1719
1433	=over 4	1720	=over 4
1434		1721
…		…
1474		1761
1475	=item $player_object->enter_link	1762	=item $player_object->enter_link
1476		1763
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1764	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1765
1479	The player should be reaosnably safe there for short amounts of time. You	1766	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.	1767	I<MUST> call C<leave_link> as soon as possible, though.
1481		1768
		1769	Will never block.
		1770
1482	=item $player_object->leave_link ($map, $x, $y)	1771	=item $player_object->leave_link ($map, $x, $y)
1483		1772
1484	Moves the player out of the specila link map onto the given map. If the	1773	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	1774	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,	1775	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1776	fails, to the emergency map position.
1488		1777
1489	Might block.	1778	Might block.
1490		1779
1491	=cut	1780	=cut
		1781
		1782	sub link_map {
		1783	unless ($LINK_MAP) {
		1784	$LINK_MAP = cf::map::find "{link}"
		1785	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1786	$LINK_MAP->load;
		1787	}
		1788
		1789	$LINK_MAP
		1790	}
1492		1791
1493	sub cf::object::player::enter_link {	1792	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1793	my ($self) = @_;
1495		1794
1496	$self->deactivate_recursive;	1795	$self->deactivate_recursive;
1497		1796
1498	return if $self->map == $LINK_MAP;	1797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1798
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1800	if $self->map;
1502		1801
1503	$self->enter_map ($LINK_MAP, 20, 20);	1802	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1803	}
1505		1804
1506	sub cf::object::player::leave_link {	1805	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1806	my ($self, $map, $x, $y) = @_;
1508		1807
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1825	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1826	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1827	if $x <=0 && $y <= 0;
1529		1828
1530	$map->load;	1829	$map->load;
		1830	$map->load_diag;
1531		1831
		1832	return unless $self->contr->active;
1532	$self->activate_recursive;	1833	$self->activate_recursive;
		1834
		1835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	1836	$self->enter_map ($map, $x, $y);
1534	}	1837	}
1535		1838
1536	cf::player->attach (	1839	cf::player->attach (
1537	on_logout => sub {	1840	on_logout => sub {
…		…
1549		1852
1550	# try to abort aborted map switching on player login :)	1853	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1854	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1855	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1856	$pl->ob->enter_link;
1554	cf::async {	1857	(async {
		1858	$pl->ob->reply (undef,
		1859	"There was an internal problem at your last logout, "
		1860	. "the server will try to bring you to your intended destination in a second.",
		1861	cf::NDI_RED);
1555	# we need this sleep as the login has a concurrent enter_exit running	1862	# 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	1863	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;	1864	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1865	$pl->ob->leave_link;
1559	};	1866	})->prio (2);
1560	}	1867	}
1561	},	1868	},
1562	);	1869	);
1563		1870
1564	=item $player_object->goto ($path, $x, $y)	1871	=item $player_object->goto ($path, $x, $y)
…		…
1568	sub cf::object::player::goto {	1875	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1876	my ($self, $path, $x, $y) = @_;
1570		1877
1571	$self->enter_link;	1878	$self->enter_link;
1572		1879
1573	(cf::async {	1880	(async {
1574	$path = new cf::path $path;	1881	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	1882	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1883	$map = $map->customise_for ($self) if $map;
1578		1884	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1885	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1886	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1887
1584	$self->leave_link ($map, $x, $y);	1888	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1889	})->prio (1);
1586	}	1890	}
1587		1891
…		…
1591		1895
1592	sub parse_random_map_params {	1896	sub parse_random_map_params {
1593	my ($spec) = @_;	1897	my ($spec) = @_;
1594		1898
1595	my $rmp = { # defaults	1899	my $rmp = { # defaults
1596	xsize => 10,	1900	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1901	ysize => (cf::rndm 15, 40),
		1902	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1903	#layout => string,
1598	};	1904	};
1599		1905
1600	for (split /\n/, $spec) {	1906	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1907	my ($k, $v) = split /\s+/, $_, 2;
1602		1908
…		…
1606	$rmp	1912	$rmp
1607	}	1913	}
1608		1914
1609	sub prepare_random_map {	1915	sub prepare_random_map {
1610	my ($exit) = @_;	1916	my ($exit) = @_;
		1917
		1918	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1919
1612	# all this does is basically replace the /! path by	1920	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1921	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1922	# that depends on the exit object
1615		1923
1616	my $rmp = parse_random_map_params $exit->msg;	1924	my $rmp = parse_random_map_params $exit->msg;
1617		1925
1618	if ($exit->map) {	1926	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1927	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	1928	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	1929	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	1930	$rmp->{origin_y} = $exit->y;
1623	}	1931	}
1624		1932
1625	$rmp->{random_seed} ||= $exit->random_seed;	1933	$rmp->{random_seed} ||= $exit->random_seed;
1626		1934
1627	my $data = cf::to_json $rmp;	1935	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1936	my $md5 = Digest::MD5::md5_hex $data;
		1937	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1938
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1939	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1940	aio_write $fh, 0, (length $data), $data, 0;
		1941	undef $fh;
		1942	aio_rename "$meta~", $meta;
1632		1943
1633	$exit->slaying ("?random/$md5");	1944	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1945	$exit->msg (undef);
1635	}	1946	}
1636	}	1947	}
…		…
1638	sub cf::object::player::enter_exit {	1949	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	1950	my ($self, $exit) = @_;
1640		1951
1641	return unless $self->type == cf::PLAYER;	1952	return unless $self->type == cf::PLAYER;
1642		1953
		1954	if ($exit->slaying eq "/!") {
		1955	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1956	cf::sync_job { prepare_random_map $exit };
		1957	}
		1958
		1959	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1960	my $hp = $exit->stats->hp;
		1961	my $sp = $exit->stats->sp;
		1962
1643	$self->enter_link;	1963	$self->enter_link;
1644		1964
1645	(cf::async {	1965	(async {
1646	$self->deactivate_recursive; # just to be sure	1966	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1967	unless (eval {
1648	prepare_random_map $exit	1968	$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 ($path, $exit->stats->hp, $exit->stats->sp);
1653		1969
1654	1;	1970	1;
1655	}) {	1971	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1972	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1973	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1974	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1975	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1976
1661	warn "ERROR in enter_exit: $@";	1977	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1978	$self->leave_link;
1663	}	1979	}
…		…
1718	# get handled first	2034	# get handled first
1719	my $queue = delete $ns->{query_queue}	2035	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2036	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2037
1722	(shift @$queue)->[1]->($msg);	2038	(shift @$queue)->[1]->($msg);
		2039	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2040
1724	push @{ $ns->{query_queue} }, @$queue;	2041	push @{ $ns->{query_queue} }, @$queue;
1725		2042
1726	if (@{ $ns->{query_queue} } == @$queue) {	2043	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2044	if (@$queue) {
…		…
1731	}	2048	}
1732	}	2049	}
1733	},	2050	},
1734	);	2051	);
1735		2052
1736	=item $client->coro (\&cb)	2053	=item $client->async (\&cb)
1737		2054
1738	Create a new coroutine, running the specified callback. The coroutine will	2055	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2056	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2057	or loss of connection).
1741		2058
1742	=cut	2059	=cut
1743		2060
1744	sub cf::client::coro {	2061	sub cf::client::async {
1745	my ($self, $cb) = @_;	2062	my ($self, $cb) = @_;
1746		2063
1747	my $coro = &cf::async ($cb);	2064	my $coro = &Coro::async ($cb);
1748		2065
1749	$coro->on_destroy (sub {	2066	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2067	delete $self->{_coro}{$coro+0};
1751	});	2068	});
1752		2069
…		…
1888	The parameter C<$family> should best start with the name of the extension	2205	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2206	using it, it should be unique.
1890		2207
1891	=over 4	2208	=over 4
1892		2209
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	2210	=item $value = cf::db_get $family => $key
1900		2211
1901	Returns a single value from the database	2212	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		2213
1908	=item cf::db_put $family => $key => $value	2214	=item cf::db_put $family => $key => $value
1909		2215
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2216	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		2217
1921	=cut	2218	=cut
1922		2219
1923	our $DB;	2220	our $DB;
1924		2221
1925	{	2222	sub db_init {
		2223	unless ($DB) {
		2224	$DB = BDB::db_create $DB_ENV;
		2225
		2226	cf::sync_job {
		2227	eval {
		2228	$DB->set_flags (BDB::CHKSUM);
		2229
		2230	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2231	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2232	cf::cleanup "db_open(db): $!" if $!;
		2233	};
		2234	cf::cleanup "db_open(db): $@" if $@;
		2235	};
		2236
1926	my $path = cf::localdir . "/database.pst";	2237	my $path = cf::localdir . "/database.pst";
		2238	if (stat $path) {
		2239	cf::sync_job {
		2240	my $pst = Storable::retrieve $path;
1927		2241
1928	sub db_load() {	2242	cf::db_put (board => data => $pst->{board});
1929	$DB = stat $path ? Storable::retrieve $path : { };	2243	cf::db_put (guildrules => data => $pst->{guildrules});
1930	}	2244	cf::db_put (rent => balance => $pst->{rent}{balance});
		2245	BDB::db_env_txn_checkpoint $DB_ENV;
1931		2246
1932	my $pid;	2247	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	}	2248	};
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	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
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	},	2249	}
1980	);	2250	}
		2251	}
		2252
		2253	sub db_get($$) {
		2254	my $key = "$_[0]/$_[1]";
		2255
		2256	cf::sync_job {
		2257	BDB::db_get $DB, undef, $key, my $data;
		2258
		2259	$! ? ()
		2260	: Compress::LZF::sthaw $data
		2261	}
		2262	}
		2263
		2264	sub db_put($$$) {
		2265	BDB::dbreq_pri 4;
		2266	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1981	}	2267	}
1982		2268
1983	#############################################################################	2269	#############################################################################
1984	# the server's main()	2270	# the server's init and main functions
		2271
		2272	sub load_faces {
		2273	my $path = sprintf "%s/faces", cf::datadir;
		2274
		2275	warn "loading faces from $path\n";
		2276
		2277	my $faces;
		2278	0 < aio_load $path, $faces
		2279	or die "$path: $!";
		2280
		2281	Coro::cede;
		2282	$faces = Storable::thaw $faces;
		2283	Coro::cede;
		2284
		2285	while (my ($face, $info) = each %$faces) {
		2286	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2287	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2288	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2289	Coro::cede;
		2290	}
		2291
		2292	1
		2293	}
		2294
		2295	sub reload_resources {
		2296	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2297	or die "unable to load regions file\n";#d#
		2298	load_faces
		2299	or die "unable to load faces\n";#d#
		2300	}
		2301
		2302	sub init {
		2303	reload_resources;
		2304	}
1985		2305
1986	sub cfg_load {	2306	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2307	open my $fh, "<:utf8", cf::confdir . "/config"
1988	or return;	2308	or return;
1989		2309
1990	local $/;	2310	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2311	*CFG = YAML::Syck::Load <$fh>;
1992		2312
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2313	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2314
		2315	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2316	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2317
1995	if (exists $CFG{mlockall}) {	2318	if (exists $CFG{mlockall}) {
1996	eval {	2319	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2320	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2321	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2322	};
2000	warn $@ if $@;	2323	warn $@ if $@;
2001	}	2324	}
2002	}	2325	}
2003		2326
2004	sub main {	2327	sub main {
2005	# we must not ever block the main coroutine	2328	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2329	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2330	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2331	(async {
2009	Event::one_event;	2332	Event::one_event;
2010	})->();	2333	})->prio (Coro::PRIO_MAX);
2011	};	2334	};
2012		2335
2013	cfg_load;	2336	cfg_load;
2014	db_load;	2337	db_init;
2015	load_extensions;	2338	load_extensions;
		2339
		2340	$TICK_WATCHER->start;
2016	Event::loop;	2341	Event::loop;
2017	}	2342	}
2018		2343
2019	#############################################################################	2344	#############################################################################
2020	# initialisation	2345	# initialisation and cleanup
		2346
		2347	# install some emergency cleanup handlers
		2348	BEGIN {
		2349	for my $signal (qw(INT HUP TERM)) {
		2350	Event->signal (
		2351	reentrant => 0,
		2352	data => WF_AUTOCANCEL,
		2353	signal => $signal,
		2354	prio => 0,
		2355	cb => sub {
		2356	cf::cleanup "SIG$signal";
		2357	},
		2358	);
		2359	}
		2360	}
		2361
		2362	sub emergency_save() {
		2363	my $freeze_guard = cf::freeze_mainloop;
		2364
		2365	warn "enter emergency perl save\n";
		2366
		2367	cf::sync_job {
		2368	# use a peculiar iteration method to avoid tripping on perl
		2369	# refcount bugs in for. also avoids problems with players
		2370	# and maps saved/destroyed asynchronously.
		2371	warn "begin emergency player save\n";
		2372	for my $login (keys %cf::PLAYER) {
		2373	my $pl = $cf::PLAYER{$login} or next;
		2374	$pl->valid or next;
		2375	$pl->save;
		2376	}
		2377	warn "end emergency player save\n";
		2378
		2379	warn "begin emergency map save\n";
		2380	for my $path (keys %cf::MAP) {
		2381	my $map = $cf::MAP{$path} or next;
		2382	$map->valid or next;
		2383	$map->save;
		2384	}
		2385	warn "end emergency map save\n";
		2386
		2387	warn "begin emergency database checkpoint\n";
		2388	BDB::db_env_txn_checkpoint $DB_ENV;
		2389	warn "end emergency database checkpoint\n";
		2390	};
		2391
		2392	warn "leave emergency perl save\n";
		2393	}
		2394
		2395	sub post_cleanup {
		2396	my ($make_core) = @_;
		2397
		2398	warn Carp::longmess "post_cleanup backtrace"
		2399	if $make_core;
		2400	}
2021		2401
2022	sub reload() {	2402	sub reload() {
2023	# can/must only be called in main	2403	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2404	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2405	warn "can only reload from main coroutine";
2026	return;	2406	return;
2027	}	2407	}
2028		2408
2029	warn "reloading...";	2409	warn "reloading...";
2030		2410
2031	my $guard = freeze_mainloop;	2411	warn "entering sync_job";
		2412
		2413	cf::sync_job {
		2414	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2415	cf::emergency_save;
		2416	cf::write_runtime; # external watchdog should not bark
2033		2417
2034	eval {	2418	warn "syncing database to disk";
		2419	BDB::db_env_txn_checkpoint $DB_ENV;
		2420
2035	# if anything goes wrong in here, we should simply crash as we already saved	2421	# if anything goes wrong in here, we should simply crash as we already saved
2036		2422
2037	# cancel all watchers	2423	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2424	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2425	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2426	}
2041		2427
		2428	warn "flushing outstanding aio requests";
		2429	for (;;) {
		2430	BDB::flush;
		2431	IO::AIO::flush;
		2432	Coro::cede;
		2433	last unless IO::AIO::nreqs || BDB::nreqs;
		2434	warn "iterate...";
		2435	}
		2436
		2437	++$RELOAD;
		2438
2042	# cancel all extension coros	2439	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2440	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2441	%EXT_CORO = ();
2045		2442
2046	# unload all extensions	2443	warn "removing commands";
2047	for (@exts) {	2444	%COMMAND = ();
		2445
		2446	warn "removing ext commands";
		2447	%EXTCMD = ();
		2448
		2449	warn "unloading/nuking all extensions";
		2450	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2451	warn "... unloading $pkg";
2049	unload_extension $_;	2452
		2453	if (my $cb = $pkg->can ("unload")) {
		2454	eval {
		2455	$cb->($pkg);
		2456	1
		2457	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2458	}
2051		2459
		2460	warn "... nuking $pkg";
		2461	Symbol::delete_package $pkg;
		2462	}
		2463
2052	# unload all modules loaded from $LIBDIR	2464	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2465	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2466	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2467
2056	warn "removing <$k>";	2468	warn "... unloading $k";
2057	delete $INC{$k};	2469	delete $INC{$k};
2058		2470
2059	$k =~ s/\.pm$//;	2471	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2472	$k =~ s/\//::/g;
2061		2473
…		…
2064	}	2476	}
2065		2477
2066	Symbol::delete_package $k;	2478	Symbol::delete_package $k;
2067	}	2479	}
2068		2480
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2481	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2482	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2483	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2484
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2485	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2486	delete $INC{"cf.pm"};
2082		2487
2083	# don't, removes xs symbols, too,	2488	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2489	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2490	#Symbol::delete_package __PACKAGE__;
2086		2491
2087	# reload cf.pm	2492	warn "unload completed, starting to reload now";
		2493
2088	warn "reloading cf.pm";	2494	warn "reloading cf.pm";
2089	require cf;	2495	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2496	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2497
2092	# load config and database again	2498	warn "loading config and database again";
2093	cf::cfg_load;	2499	cf::cfg_load;
2094	cf::db_load;
2095		2500
2096	# load extensions
2097	warn "load extensions";	2501	warn "loading extensions";
2098	cf::load_extensions;	2502	cf::load_extensions;
2099		2503
2100	# reattach attachments to objects	2504	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2505	_global_reattach; # objects, sockets
2102	_global_reattach;	2506	warn "reattaching attachments to maps";
2103	};	2507	reattach $_ for values %MAP;
		2508	warn "reattaching attachments to players";
		2509	reattach $_ for values %PLAYER;
2104		2510
2105	if ($@) {	2511	warn "loading reloadable resources";
		2512	reload_resources;
		2513
		2514	warn "leaving sync_job";
		2515
		2516	1
		2517	} or do {
2106	warn $@;	2518	warn $@;
2107	warn "error while reloading, exiting.";	2519	warn "error while reloading, exiting.";
2108	exit 1;	2520	exit 1;
2109	}	2521	};
2110		2522
2111	warn "reloaded successfully";	2523	warn "reloaded";
2112	};	2524	};
2113		2525
2114	#############################################################################	2526	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} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2527
2159	register_command "reload" => sub {	2528	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2529	my ($who, $arg) = @_;
2161		2530
2162	if ($who->flag (FLAG_WIZ)) {	2531	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2532	$who->message ("reloading server.");
		2533
		2534	# doing reload synchronously and two reloads happen back-to-back,
		2535	# coro crashes during coro_state_free->destroy here.
		2536
		2537	$RELOAD_WATCHER ||= Event->timer (
		2538	reentrant => 0,
		2539	after => 0,
		2540	data => WF_AUTOCANCEL,
		2541	cb => sub {
2164	reload;	2542	reload;
2165	$who->message ("end of reload.");	2543	undef $RELOAD_WATCHER;
		2544	},
		2545	);
2166	}	2546	}
2167	};	2547	};
2168		2548
2169	unshift @INC, $LIBDIR;	2549	unshift @INC, $LIBDIR;
		2550
		2551	my $bug_warning = 0;
2170		2552
2171	$TICK_WATCHER = Event->timer (	2553	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2554	reentrant => 0,
		2555	parked => 1,
2173	prio => 0,	2556	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2557	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2558	data => WF_AUTOCANCEL,
2176	cb => sub {	2559	cb => sub {
		2560	if ($Coro::current != $Coro::main) {
		2561	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2562	unless ++$bug_warning > 10;
		2563	return;
		2564	}
		2565
		2566	$NOW = Event::time;
		2567
2177	cf::server_tick; # one server iteration	2568	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;	2569	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	2570	$NEXT_TICK += $TICK;
		2571
		2572	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2573	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2574	Coro::async_pool {
		2575	write_runtime
		2576	or warn "ERROR: unable to write runtime file: $!";
		2577	};
		2578	}
		2579
		2580	$WAIT_FOR_TICK->broadcast;
		2581	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2582
		2583	# my $AFTER = Event::time;
		2584	# warn $AFTER - $NOW;#d#
2180		2585
2181	# if we are delayed by four ticks or more, skip them all	2586	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2587	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183		2588
2184	$TICK_WATCHER->at ($NEXT_TICK);	2589	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	2590	$TICK_WATCHER->start;
2186	},	2591	},
2187	);	2592	);
2188		2593
		2594	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	2595	BDB::max_poll_time $TICK * 0.1;
2190		2596	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	2597	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	2598	fd => BDB::poll_fileno,
2193	poll => 'r',	2599	poll => 'r',
2194	prio => 5,	2600	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	2601	data => WF_AUTOCANCEL,
2201	after => 0,	2602	cb => \&BDB::poll_cb,
2202	interval => 10,	2603	);
2203	cb => sub {	2604	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	2605
2205	write_runtime	2606	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	2607	my $status;
		2608	my $current = $Coro::current;
		2609	(
		2610	sub {
		2611	$status = $!;
		2612	$current->ready; undef $current;
		2613	},
		2614	sub {
		2615	Coro::schedule while defined $current;
		2616	$! = $status;
		2617	},
		2618	)
		2619	};
		2620
		2621	unless ($DB_ENV) {
		2622	$DB_ENV = BDB::db_env_create;
		2623
		2624	cf::sync_job {
		2625	eval {
		2626	BDB::db_env_open
		2627	$DB_ENV,
		2628	$BDB_ENV_DIR,
		2629	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2630	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2631	0666;
		2632
		2633	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2634
		2635	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2636	$DB_ENV->set_lk_detect;
		2637	};
		2638
		2639	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	2640	};
2208	},	2641	}
2209	);	2642	}
		2643
		2644	{
		2645	IO::AIO::min_parallel 8;
		2646
		2647	undef $Coro::AIO::WATCHER;
		2648	IO::AIO::max_poll_time $TICK * 0.1;
		2649	$AIO_POLL_WATCHER = Event->io (
		2650	reentrant => 0,
		2651	data => WF_AUTOCANCEL,
		2652	fd => IO::AIO::poll_fileno,
		2653	poll => 'r',
		2654	prio => 6,
		2655	cb => \&IO::AIO::poll_cb,
		2656	);
		2657	}
2210		2658
2211	END { cf::emergency_save }	2659	END { cf::emergency_save }
2212		2660
2213	1	2661	1
2214		2662

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