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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.209 by root, Mon Feb 12 01:25:55 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
224	}	271	}
225		272
226	sub freeze_mainloop {	273	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
228		275
229	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;
230	$TICK_WATCHER->stop;	281	$TICK_WATCHER->stop;
231	$guard	282	$guard
232	}	283	}
		284
		285	=item cf::async { BLOCK }
		286
		287	Currently the same as Coro::async_pool, meaning you cannot use
		288	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		289	thing you are allowed to do is call C<prio> on it.
		290
		291	=cut
		292
		293	BEGIN { *async = \&Coro::async_pool }
233		294
234	=item cf::sync_job { BLOCK }	295	=item cf::sync_job { BLOCK }
235		296
236	The design of crossfire+ requires that the main coro ($Coro::main) is	297	The design of crossfire+ requires that the main coro ($Coro::main) is
237	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
…		…
256	my $freeze_guard = freeze_mainloop;	317	my $freeze_guard = freeze_mainloop;
257		318
258	my $busy = 1;	319	my $busy = 1;
259	my @res;	320	my @res;
260		321
261	(Coro::async_pool {	322	(async {
262	@res = eval { $job->() };	323	@res = eval { $job->() };
263	warn $@ if $@;	324	warn $@ if $@;
264	undef $busy;	325	undef $busy;
265	})->prio (Coro::PRIO_MAX);	326	})->prio (Coro::PRIO_MAX);
266		327
267	while ($busy) {	328	while ($busy) {
268	Coro::cede_notself;	329	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	330	}
271		331
272	wantarray ? @res : $res[0]	332	wantarray ? @res : $res[0]
273	} else {	333	} else {
274	# we are in another coroutine, how wonderful, everything just works	334	# we are in another coroutine, how wonderful, everything just works
275		335
276	$job->()	336	$job->()
277	}	337	}
278	}	338	}
279		339
280	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
281		341
282	Creates (and readies) and returns a new coro. This coro is automcatially	342	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
284		344
285	=cut	345	=cut
286		346
287	sub coro(&) {	347	sub async_ext(&) {
288	my $cb = shift;	348	my $cb = shift;
289		349
290	my $coro = &Coro::async_pool ($cb);	350	my $coro = &Coro::async ($cb);
291		351
292	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
294	});	354	});
295	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
…		…
301	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
302		362
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
304	or return;	364	or return;
305		365
		366	my $value = $cf::RUNTIME + 90 + 10;
306	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
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;	371	and return;
309		372
		373	# always fsync - this file is important
310	aio_fsync $fh	374	aio_fsync $fh
311	and return;	375	and return;
312		376
313	close $fh	377	close $fh
314	or return;	378	or return;
…		…
320	}	384	}
321		385
322	=back	386	=back
323		387
324	=cut	388	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		389
446	#############################################################################	390	#############################################################################
447		391
448	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
449		393
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	520	our @CB_MAP = ();
577		521
578	my %attachment;	522	my %attachment;
579		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
580	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
582		532
583	use sort 'stable';	533	use sort 'stable';
584		534
…		…
755	# object support	705	# object support
756		706
757	sub reattach {	707	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		712
761	my $registry = $obj->registry;	713	my $registry = $obj->registry;
762		714
763	@$registry = ();	715	@$registry = ();
764		716
…		…
811	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
812		764
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	769	close $fh;
818		770
819	if (@$objs) {	771	if (@$objs) {
820	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) {
821	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	777	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
827	}	779	}
828	} else {	780	} else {
829	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
835	}	787	}
836	} else {	788	} else {
837	aio_unlink $filename;	789	aio_unlink $filename;
838	aio_unlink "$filename.pst";	790	aio_unlink "$filename.pst";
839	}	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	}
840	}	798	}
841	}	799	}
842		800
843	sub object_freezer_as_string {	801	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
850		808
851	sub object_thawer_load {	809	sub object_thawer_load {
852	my ($filename) = @_;	810	my ($filename) = @_;
853		811
854	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$//;
855		816
856	(aio_load $filename, $data) >= 0	817	(aio_load $filename, $data) >= 0
857	or return;	818	or return;
858		819
859	unless (aio_stat "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
…		…
896	=cut	857	=cut
897		858
898	sub register_extcmd {	859	sub register_extcmd {
899	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
900		861
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
905	}	863	}
906		864
907	cf::player->attach (	865	cf::player->attach (
908	on_command => sub {	866	on_command => sub {
909	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
922		880
923	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
924		882
925	if (ref $msg) {	883	if (ref $msg) {
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
928	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
929	}	887	}
930	}	888	}
931	} else {	889	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
934		892
935	cf::override;	893	cf::override;
936	},	894	},
937	);	895	);
938		896
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	897	sub load_extension {
946	my ($path) = @_;	898	my ($path) = @_;
947		899
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
949	my $base = $1;	901	my $base = $1;
950	my $pkg = $1;	902	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
953		905
954	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
955		907
956	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
957	or die "$path: $!";	909	or die "$path: $!";
958		910
959	my $source =	911	my $source =
960	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
963	. "\n};\n1";	915	. "\n};\n1";
964		916
965	eval $source	917	unless (eval $source) {
966	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
967	: "extension disabled.\n";	919	: "extension disabled.\n";
968		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
969	push @exts, $pkg;	921	warn $@;
970	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
971		923	exit 1;
972	# no strict 'refs';	924	}
973	# @{"$pkg\::ISA"} = ext::;	925	die $@;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	926	}
988		927
989	# remove commands	928	push @EXTS, $pkg;
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}	929	}
1014		930
1015	sub load_extensions {	931	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;	933	next unless -r $ext;
…		…
1021	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
1022	}	938	}
1023	}	939	}
1024		940
1025	#############################################################################	941	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062		942
1063	=head2 CORE EXTENSIONS	943	=head2 CORE EXTENSIONS
1064		944
1065	Functions and methods that extend core crossfire objects.	945	Functions and methods that extend core crossfire objects.
1066		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
1067	=head3 cf::player	953	=head3 cf::player
1068		954
1069	=over 4	955	=over 4
1070		956
1071	=item cf::player::exists $login	957	=item cf::player::find $login
1072		958
1073	Returns true when the given account exists.	959	Returns the given player object, loading it if necessary (might block).
1074		960
1075	=cut	961	=cut
1076		962
1077	sub cf::player::exists($) {	963	sub playerdir($) {
1078	cf::player::find $_[0]	964	cf::localdir
1079	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
1080	}	1111	}
1081		1112
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)	1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083		1114
1084	Sends an ext reply to the player.	1115	Sends an ext reply to the player.
1085		1116
1086	=cut	1117	=cut
1087		1118
1088	sub cf::player::ext_reply($$$%) {	1119	sub ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;	1120	my ($self, $id, %msg) = @_;
1090		1121
1091	$msg{msgid} = $id;	1122	$msg{msgid} = $id;
1092		1123
1093	$self->send ("ext " . to_json \%msg);	1124	$self->send ("ext " . cf::to_json \%msg);
1094	}	1125	}
		1126
		1127	package cf;
1095		1128
1096	=back	1129	=back
1097		1130
1098		1131
1099	=head3 cf::map	1132	=head3 cf::map
…		…
1105	package cf::map;	1138	package cf::map;
1106		1139
1107	use Fcntl;	1140	use Fcntl;
1108	use Coro::AIO;	1141	use Coro::AIO;
1109		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
1110	our $MAX_RESET = 3600;	1147	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1148	our $DEFAULT_RESET = 3000;
1112		1149
1113	sub generate_random_map {	1150	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1151	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1152	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1153	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1157	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1158	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$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},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(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
1130	}	1295	}
1131		1296
1132	# and all this just because we cannot iterate over	1297	# and all this just because we cannot iterate over
1133	# all maps in C++...	1298	# all maps in C++...
1134	sub change_all_map_light {	1299	sub change_all_map_light {
…		…
1136		1301
1137	$_->change_map_light ($change)	1302	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1303	for grep $_->outdoor, values %cf::MAP;
1139	}	1304	}
1140		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
1141	sub try_load_header($) {	1319	sub load_header_from($) {
1142	my ($path) = @_;	1320	my ($self, $path) = @_;
1143		1321
1144	utf8::encode $path;	1322	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
1146	or return;	1327	or return;
1147		1328
1148	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
1149	or return;	1372	or return;
		1373	$self->prepare_orig;
		1374	}
1150		1375
1151	# for better error messages only, will be overwritten	1376	1
1152	$map->path ($path);
1153
1154	$map->load_header ($path)
1155	or return;
1156
1157	$map->{load_path} = $path;
1158
1159	$map
1160	}	1377	}
1161		1378
1162	sub find;	1379	sub find;
1163	sub find {	1380	sub find {
1164	my ($path, $origin) = @_;	1381	my ($path, $origin) = @_;
1165		1382
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1383	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1384
1171	cf::lock_wait "map_find:$key";	1385	cf::lock_wait "map_find:$path";
1172		1386
1173	$cf::MAP{$key} || do {	1387	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1388	my $guard = cf::lock_acquire "map_find:$path";
1175		1389	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1390	or return;
1195		1391
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1392	$map->{last_save} = $cf::RUNTIME;
1208		1393
1209	Coro::cede;	1394	$map->load_header
		1395	or return;
1210		1396
1211	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;
1212	$map->reset;	1400	$map->reset;
1213	undef $guard;	1401	undef $guard;
1214	$map = find $path	1402	return find $path;
1215	or return;
1216	}	1403	}
1217		1404
1218	$cf::MAP{$key} = $map	1405	$cf::MAP{$path} = $map
1219	}	1406	}
1220	}	1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
1221		1411
1222	sub load {	1412	sub load {
1223	my ($self) = @_;	1413	my ($self) = @_;
1224		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
1225	my $path = $self->{path};	1417	my $path = $self->{path};
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1418	my $guard = cf::lock_acquire "map_load:$path";
1227		1419
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1420	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1421
1230	$self->in_memory (cf::MAP_LOADING);	1422	$self->in_memory (cf::MAP_LOADING);
1231		1423
1232	$self->alloc;	1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
1233	$self->load_objects ($self->{load_path}, 1)	1428	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1429	or return;
1235		1430
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1432	if delete $self->{load_original};
1238		1433
1239	if (my $uniq = $path->uniq_path) {	1434	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1435	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1436	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1437	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1438	$self->_load_objects ($uniq, 0);
1244	}	1439	}
1245	}	1440	}
1246		1441
1247	Coro::cede;	1442	Coro::cede;
1248		1443
1249	# now do the right thing for maps	1444	# now do the right thing for maps
1250	$self->link_multipart_objects;	1445	$self->link_multipart_objects;
1251		1446
1252	if ($self->{path}->is_style_map) {	1447	unless ($self->{deny_activate}) {
1253	$self->{deny_save} = 1;	1448	$self->decay_objects;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;	1449	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;	1450	$self->update_buttons;
		1451	Coro::cede;
1259	$self->set_darkness_map;	1452	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1453	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1454	unless $self->difficulty;
		1455	Coro::cede;
1262	$self->activate;	1456	$self->activate;
1263	}	1457	}
1264		1458
1265	Coro::cede;	1459	$self->post_load;
1266		1460
1267	$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	}
1268	}	1495	}
1269		1496
1270	sub find_sync {	1497	sub find_sync {
1271	my ($path, $origin) = @_;	1498	my ($path, $origin) = @_;
1272		1499
1273	cf::sync_job { cf::map::find $path, $origin }	1500	cf::sync_job { find $path, $origin }
1274	}	1501	}
1275		1502
1276	sub do_load_sync {	1503	sub do_load_sync {
1277	my ($map) = @_;	1504	my ($map) = @_;
1278		1505
1279	cf::sync_job { $map->load };	1506	cf::sync_job { $map->load };
1280	}	1507	}
1281		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
1282	sub save {	1539	sub save {
1283	my ($self) = @_;	1540	my ($self) = @_;
1284		1541
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		1543
1287	$self->{last_save} = $cf::RUNTIME;	1544	$self->{last_save} = $cf::RUNTIME;
1288		1545
1289	return unless $self->dirty;	1546	return unless $self->dirty;
1290		1547
1291	my $save = $self->{path}->save_path; utf8::encode $save;	1548	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		1550
1294	$self->{load_path} = $save;	1551	$self->{load_path} = $save;
1295		1552
1296	return if $self->{deny_save};	1553	return if $self->{deny_save};
1297		1554
1298	local $self->{last_access} = $self->last_access;#d#	1555	local $self->{last_access} = $self->last_access;#d#
1299		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
1300	if ($uniq) {	1561	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	1564	} else {
1304	$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);
1305	}	1566	}
1306	}	1567	}
1307		1568
1308	sub swap_out {	1569	sub swap_out {
1309	my ($self) = @_;	1570	my ($self) = @_;
…		…
1323		1584
1324	sub reset_at {	1585	sub reset_at {
1325	my ($self) = @_;	1586	my ($self) = @_;
1326		1587
1327	# TODO: safety, remove and allow resettable per-player maps	1588	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};	1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1329	return 1e99 if $self->{deny_reset};	1590	return 1e99 if $self->{deny_reset};
1330		1591
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	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;
1333		1594
…		…
1338	my ($self) = @_;	1599	my ($self) = @_;
1339		1600
1340	$self->reset_at <= $cf::RUNTIME	1601	$self->reset_at <= $cf::RUNTIME
1341	}	1602	}
1342		1603
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1604	sub reset {
1365	my ($self) = @_;	1605	my ($self) = @_;
1366		1606
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		1608
1369	return if $self->players;	1609	return if $self->players;
1370	return if $self->{path}{user_rel};#d#	1610	return if $self->isa ("ext::map_per_player");#d#
1371		1611
1372	warn "resetting map ", $self->path;#d#	1612	warn "resetting map ", $self->path;#d#
1373		1613
1374	delete $cf::MAP{$self->path};	1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
1375		1618
1376	$_->clear_links_to ($self) for values %cf::MAP;	1619	$_->clear_links_to ($self) for values %cf::MAP;
1377		1620
1378	$self->unlink_save;	1621	$self->unlink_save;
1379	$self->destroy;	1622	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	1625	my $nuke_counter = "aaaa";
1383		1626
1384	sub nuke {	1627	sub nuke {
1385	my ($self) = @_;	1628	my ($self) = @_;
1386		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	1636	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	1637	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
1390	$self->reset; # polite request, might not happen	1642	$self->reset; # polite request, might not happen
1391	}	1643	}
1392		1644
1393	sub customise_for {	1645	=item cf::map::unique_maps
1394	my ($map, $ob) = @_;
1395		1646
1396	if ($map->per_player) {	1647	Returns an arrayref of paths of all shared maps that have
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1648	instantiated unique items. May block.
1398	}
1399		1649
1400	$map	1650	=cut
1401	}
1402		1651
1403	sub emergency_save {	1652	sub unique_maps() {
1404	my $freeze_guard = cf::freeze_mainloop;	1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
1405		1655
1406	warn "enter emergency map save\n";	1656	my @paths;
1407		1657
1408	cf::sync_job {	1658	for (@$files) {
1409	warn "begin emergency map save\n";	1659	utf8::decode $_;
1410	$_->save for values %cf::MAP;	1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
1411	};	1664	}
1412		1665
1413	warn "end emergency map save\n";	1666	\@paths
1414	}	1667	}
1415		1668
1416	package cf;	1669	package cf;
1417		1670
1418	=back	1671	=back
1419		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
1420		1699
1421	=head3 cf::object::player	1700	=head3 cf::object::player
1422		1701
1423	=over 4	1702	=over 4
1424		1703
…		…
1464		1743
1465	=item $player_object->enter_link	1744	=item $player_object->enter_link
1466		1745
1467	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}>).
1468		1747
1469	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
1470	I<MUST> call C<leave_link> as soon as possible, though.	1749	I<MUST> call C<leave_link> as soon as possible, though.
1471		1750
		1751	Will never block.
		1752
1472	=item $player_object->leave_link ($map, $x, $y)	1753	=item $player_object->leave_link ($map, $x, $y)
1473		1754
1474	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
1475	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
1476	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
1477	to the emergency map position.	1758	fails, to the emergency map position.
1478		1759
1479	Might block.	1760	Might block.
1480		1761
1481	=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	}
1482		1773
1483	sub cf::object::player::enter_link {	1774	sub cf::object::player::enter_link {
1484	my ($self) = @_;	1775	my ($self) = @_;
1485		1776
1486	$self->deactivate_recursive;	1777	$self->deactivate_recursive;
1487		1778
1488	return if $self->map == $LINK_MAP;	1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		1780
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	1782	if $self->map;
1492		1783
1493	$self->enter_map ($LINK_MAP, 20, 20);	1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	1785	}
1495		1786
1496	sub cf::object::player::leave_link {	1787	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	1788	my ($self, $map, $x, $y) = @_;
1498		1789
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	1807	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	1808	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	1809	if $x <=0 && $y <= 0;
1519		1810
1520	$map->load;	1811	$map->load;
		1812	$map->load_diag;
1521		1813
		1814	return unless $self->contr->active;
1522	$self->activate_recursive;	1815	$self->activate_recursive;
1523	$self->enter_map ($map, $x, $y);	1816	$self->enter_map ($map, $x, $y);
1524	}	1817	}
1525		1818
1526	cf::player->attach (	1819	cf::player->attach (
…		…
1539		1832
1540	# try to abort aborted map switching on player login :)	1833	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes	1834	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {	1835	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;	1836	$pl->ob->enter_link;
1544	Coro::async_pool {	1837	(async {
1545	# 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
1546	# 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);
1547	Coro::Timer::sleep 1;	1844	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;	1845	$pl->ob->leave_link;
1549	};	1846	})->prio (2);
1550	}	1847	}
1551	},	1848	},
1552	);	1849	);
1553		1850
1554	=item $player_object->goto ($path, $x, $y)	1851	=item $player_object->goto ($path, $x, $y)
…		…
1558	sub cf::object::player::goto {	1855	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	1856	my ($self, $path, $x, $y) = @_;
1560		1857
1561	$self->enter_link;	1858	$self->enter_link;
1562		1859
1563	(Coro::async_pool {	1860	(async {
1564	$path = new cf::path $path;	1861	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	1862	my $map = cf::map::find $path;
1567	$map = $map->customise_for ($self) if $map;	1863	$map = $map->customise_for ($self) if $map;
1568		1864	$map
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	1865	} or
1570	# if $map;
1571
1572	$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);
1573		1867
1574	$self->leave_link ($map, $x, $y);	1868	$self->leave_link ($map, $x, $y);
1575	})->prio (1);	1869	})->prio (1);
1576	}	1870	}
1577		1871
…		…
1581		1875
1582	sub parse_random_map_params {	1876	sub parse_random_map_params {
1583	my ($spec) = @_;	1877	my ($spec) = @_;
1584		1878
1585	my $rmp = { # defaults	1879	my $rmp = { # defaults
1586	xsize => 10,	1880	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
1588	};	1884	};
1589		1885
1590	for (split /\n/, $spec) {	1886	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	1887	my ($k, $v) = split /\s+/, $_, 2;
1592		1888
…		…
1596	$rmp	1892	$rmp
1597	}	1893	}
1598		1894
1599	sub prepare_random_map {	1895	sub prepare_random_map {
1600	my ($exit) = @_;	1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		1899
1602	# all this does is basically replace the /! path by	1900	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	1901	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	1902	# that depends on the exit object
1605		1903
1606	my $rmp = parse_random_map_params $exit->msg;	1904	my $rmp = parse_random_map_params $exit->msg;
1607		1905
1608	if ($exit->map) {	1906	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	1907	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	1908	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	1909	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	1910	$rmp->{origin_y} = $exit->y;
1613	}	1911	}
1614		1912
1615	$rmp->{random_seed} ||= $exit->random_seed;	1913	$rmp->{random_seed} ||= $exit->random_seed;
1616		1914
1617	my $data = cf::to_json $rmp;	1915	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1619		1918
1620	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) {
1621	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;
1622		1923
1623	$exit->slaying ("?random/$md5");	1924	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	1925	$exit->msg (undef);
1625	}	1926	}
1626	}	1927	}
…		…
1628	sub cf::object::player::enter_exit {	1929	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	1930	my ($self, $exit) = @_;
1630		1931
1631	return unless $self->type == cf::PLAYER;	1932	return unless $self->type == cf::PLAYER;
1632		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
1633	$self->enter_link;	1943	$self->enter_link;
1634		1944
1635	(Coro::async_pool {	1945	(async {
1636	$self->deactivate_recursive; # just to be sure	1946	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	1947	unless (eval {
1638	prepare_random_map $exit	1948	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		1949
1644	1;	1950	1;
1645	}) {	1951	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	1952	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "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. "
1648	. "Please report this to the dungeon master",	1954	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	1955	cf::NDI_UNIQUE | cf::NDI_RED);
1650		1956
1651	warn "ERROR in enter_exit: $@";	1957	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	1958	$self->leave_link;
1653	}	1959	}
…		…
1708	# get handled first	2014	# get handled first
1709	my $queue = delete $ns->{query_queue}	2015	my $queue = delete $ns->{query_queue}
1710	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
1711		2017
1712	(shift @$queue)->[1]->($msg);	2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2020
1714	push @{ $ns->{query_queue} }, @$queue;	2021	push @{ $ns->{query_queue} }, @$queue;
1715		2022
1716	if (@{ $ns->{query_queue} } == @$queue) {	2023	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2024	if (@$queue) {
…		…
1721	}	2028	}
1722	}	2029	}
1723	},	2030	},
1724	);	2031	);
1725		2032
1726	=item $client->coro (\&cb)	2033	=item $client->async (\&cb)
1727		2034
1728	Create a new coroutine, running the specified callback. The coroutine will	2035	Create a new coroutine, running the specified callback. The coroutine will
1729	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,
1730	or loss of connection).	2037	or loss of connection).
1731		2038
1732	=cut	2039	=cut
1733		2040
1734	sub cf::client::coro {	2041	sub cf::client::async {
1735	my ($self, $cb) = @_;	2042	my ($self, $cb) = @_;
1736		2043
1737	my $coro = &Coro::async_pool ($cb);	2044	my $coro = &Coro::async ($cb);
1738		2045
1739	$coro->on_destroy (sub {	2046	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2047	delete $self->{_coro}{$coro+0};
1741	});	2048	});
1742		2049
…		…
1878	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
1879	using it, it should be unique.	2186	using it, it should be unique.
1880		2187
1881	=over 4	2188	=over 4
1882		2189
1883	=item $hashref = cf::db_get $family
1884
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key	2190	=item $value = cf::db_get $family => $key
1890		2191
1891	Returns a single value from the database	2192	Returns a single value from the database.
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897		2193
1898	=item cf::db_put $family => $key => $value	2194	=item cf::db_put $family => $key => $value
1899		2195
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you	2196	Stores the given C<$value> in the family.
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910		2197
1911	=cut	2198	=cut
1912		2199
1913	our $DB;	2200	our $DB;
1914		2201
1915	{	2202	unless ($DB) {
		2203	$DB = BDB::db_create $DB_ENV;
		2204
		2205	cf::sync_job {
		2206	eval {
		2207	$DB->set_flags (BDB::CHKSUM);
		2208
		2209	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2210	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2211	cf::cleanup "db_open(db): $!" if $!;
		2212	};
		2213	cf::cleanup "db_open(db): $@" if $@;
		2214	};
		2215
1916	my $path = cf::localdir . "/database.pst";	2216	my $path = cf::localdir . "/database.pst";
		2217	if (stat $path) {
		2218	cf::sync_job {
		2219	my $pst = Storable::retrieve $path;
1917		2220
1918	sub db_load() {	2221	cf::db_put (board => data => $pst->{board});
1919	$DB = stat $path ? Storable::retrieve $path : { };	2222	cf::db_put (guildrules => data => $pst->{guildrules});
1920	}	2223	cf::db_put (rent => balance => $pst->{rent}{balance});
		2224	BDB::db_env_txn_checkpoint $DB_ENV;
1921		2225
1922	my $pid;	2226	unlink $path;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}	2227	};
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	2228	}
		2229	}
1944		2230
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {	2231	sub db_get($$) {
1951	@_ >= 2	2232	my $key = "$_[0]/$_[1]";
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		2233
		2234	cf::sync_job {
		2235	BDB::db_get $DB, undef, $key, my $data;
		2236
		2237	$! ? ()
		2238	: Compress::LZF::sthaw $data
		2239	}
		2240	}
		2241
1956	sub db_put($$;$) {	2242	sub db_put($$$) {
1957	if (@_ >= 3) {	2243	BDB::dbreq_pri 4;
1958	$DB->{$_[0]}{$_[1]} = $_[2];	2244	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},
1970	);
1971	}	2245	}
1972		2246
1973	#############################################################################	2247	#############################################################################
1974	# the server's main()	2248	# the server's init and main functions
		2249
		2250	sub load_resources {
		2251	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2252	or die "unable to load regions file\n";#d#
		2253	}
1975		2254
1976	sub cfg_load {	2255	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	2256	open my $fh, "<:utf8", cf::confdir . "/config"
1978	or return;	2257	or return;
1979		2258
1980	local $/;	2259	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	2260	*CFG = YAML::Syck::Load <$fh>;
1982		2261
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2262	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		2263
		2264	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2265	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2266
1985	if (exists $CFG{mlockall}) {	2267	if (exists $CFG{mlockall}) {
1986	eval {	2268	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	2269	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	2270	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	2271	};
1990	warn $@ if $@;	2272	warn $@ if $@;
1991	}	2273	}
		2274	}
		2275
		2276	sub init {
		2277	load_resources;
1992	}	2278	}
1993		2279
1994	sub main {	2280	sub main {
1995	# we must not ever block the main coroutine	2281	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	2282	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2283	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	2284	(async {
1999	Event::one_event;	2285	Event::one_event;
2000	})->();	2286	})->prio (Coro::PRIO_MAX);
2001	};	2287	};
2002		2288
2003	cfg_load;	2289	cfg_load;
2004	db_load;
2005	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
2006	Event::loop;	2293	Event::loop;
2007	}	2294	}
2008		2295
2009	#############################################################################	2296	#############################################################################
2010	# initialisation	2297	# initialisation and cleanup
		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
2011		2346
2012	sub reload() {	2347	sub reload() {
2013	# can/must only be called in main	2348	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	2349	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	2350	warn "can only reload from main coroutine";
2016	return;	2351	return;
2017	}	2352	}
2018		2353
2019	warn "reloading...";	2354	warn "reloading...";
2020		2355
2021	my $guard = freeze_mainloop;	2356	warn "cancelling server ticker";
		2357	$TICK_WATCHER->cancel;
		2358
2022	cf::emergency_save;	2359	cf::emergency_save;
2023		2360
2024	eval {	2361	eval {
2025	# if anything goes wrong in here, we should simply crash as we already saved	2362	# if anything goes wrong in here, we should simply crash as we already saved
2026		2363
2027	# cancel all watchers	2364	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	2365	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	2366	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	2367	}
2031		2368
		2369	warn "syncing database to disk";
		2370	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2371
		2372	warn "flushing outstanding aio requests";
		2373	for (;;) {
		2374	BDB::flush;
		2375	IO::AIO::flush;
		2376	Coro::cede;
		2377	last unless IO::AIO::nreqs || BDB::nreqs;
		2378	warn "iterate...";
		2379	}
		2380
2032	# cancel all extension coros	2381	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	2382	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	2383	%EXT_CORO = ();
2035		2384
2036	# unload all extensions	2385	warn "removing commands";
2037	for (@exts) {	2386	%COMMAND = ();
		2387
		2388	warn "removing ext commands";
		2389	%EXTCMD = ();
		2390
		2391	warn "unloading/nuking all extensions";
		2392	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	2393	warn "... unloading $pkg";
2039	unload_extension $_;	2394
		2395	if (my $cb = $pkg->can ("unload")) {
		2396	eval {
		2397	$cb->($pkg);
		2398	1
		2399	} or warn "$pkg unloaded, but with errors: $@";
2040	}	2400	}
2041		2401
		2402	warn "... nuking $pkg";
		2403	Symbol::delete_package $pkg;
		2404	}
		2405
2042	# unload all modules loaded from $LIBDIR	2406	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	2407	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2408	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		2409
2046	warn "removing <$k>";	2410	warn "... unloading $k";
2047	delete $INC{$k};	2411	delete $INC{$k};
2048		2412
2049	$k =~ s/\.pm$//;	2413	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	2414	$k =~ s/\//::/g;
2051		2415
…		…
2054	}	2418	}
2055		2419
2056	Symbol::delete_package $k;	2420	Symbol::delete_package $k;
2057	}	2421	}
2058		2422
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	2423	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	2424	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2425	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		2426
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	2427	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	2428	delete $INC{"cf.pm"};
2072		2429
2073	# don't, removes xs symbols, too,	2430	# don't, removes xs symbols, too,
2074	# and global variables created in xs	2431	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	2432	#Symbol::delete_package __PACKAGE__;
2076		2433
2077	# reload cf.pm	2434	warn "unload completed, starting to reload now";
		2435
2078	warn "reloading cf.pm";	2436	warn "reloading cf.pm";
2079	require cf;	2437	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2438	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		2439
2082	# load config and database again	2440	warn "loading config and database again";
2083	cf::cfg_load;	2441	cf::cfg_load;
2084	cf::db_load;
2085		2442
2086	# load extensions
2087	warn "load extensions";	2443	warn "loading extensions";
2088	cf::load_extensions;	2444	cf::load_extensions;
2089		2445
2090	# reattach attachments to objects	2446	warn "reattaching attachments to objects/players";
2091	warn "reattach";
2092	_global_reattach;	2447	_global_reattach;
		2448	warn "reattaching attachments to maps";
		2449	reattach $_ for values %MAP;
		2450
		2451	warn "loading reloadable resources";
		2452	load_resources;
		2453
		2454	warn "restarting server ticker";
		2455
		2456	$TICK_WATCHER->start;
2093	};	2457	};
2094		2458
2095	if ($@) {	2459	if ($@) {
2096	warn $@;	2460	warn $@;
2097	warn "error while reloading, exiting.";	2461	warn "error while reloading, exiting.";
2098	exit 1;	2462	exit 1;
2099	}	2463	}
2100		2464
2101	warn "reloaded successfully";	2465	warn "reloaded";
2102	};	2466	};
2103		2467
2104	#############################################################################	2468	our $RELOAD_WATCHER; # used only during reload
2105
2106	unless ($LINK_MAP) {
2107	$LINK_MAP = cf::map::new;
2108
2109	$LINK_MAP->width (41);
2110	$LINK_MAP->height (41);
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,
2119	cb => sub {
2120	$_[0]->w->cancel;
2121
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});
2140
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}
2146
2147	register "<global>", __PACKAGE__;
2148		2469
2149	register_command "reload" => sub {	2470	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	2471	my ($who, $arg) = @_;
2151		2472
2152	if ($who->flag (FLAG_WIZ)) {	2473	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");	2474	$who->message ("reloading server.");
		2475
		2476	# doing reload synchronously and two reloads happen back-to-back,
		2477	# coro crashes during coro_state_free->destroy here.
		2478
		2479	$RELOAD_WATCHER ||= Event->timer (
		2480	reentrant => 0,
		2481	after => 0,
		2482	data => WF_AUTOCANCEL,
		2483	cb => sub {
2154	reload;	2484	reload;
2155	$who->message ("end of reload.");	2485	undef $RELOAD_WATCHER;
		2486	},
		2487	);
2156	}	2488	}
2157	};	2489	};
2158		2490
2159	unshift @INC, $LIBDIR;	2491	unshift @INC, $LIBDIR;
		2492
		2493	my $bug_warning = 0;
2160		2494
2161	$TICK_WATCHER = Event->timer (	2495	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	2496	reentrant => 0,
		2497	parked => 1,
2163	prio => 0,	2498	prio => 0,
2164	at => $NEXT_TICK || $TICK,	2499	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	2500	data => WF_AUTOCANCEL,
2166	cb => sub {	2501	cb => sub {
		2502	if ($Coro::current != $Coro::main) {
		2503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2504	unless ++$bug_warning > 10;
		2505	return;
		2506	}
		2507
		2508	$NOW = Event::time;
		2509
2167	cf::server_tick; # one server iteration	2510	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;	2511	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	2512	$NEXT_TICK += $TICK;
		2513
		2514	$WAIT_FOR_TICK->broadcast;
		2515	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2516
		2517	Event::sweep;
		2518	Coro::cede_notself;
		2519
		2520	# my $AFTER = Event::time;
		2521	# warn $AFTER - $NOW;#d#
2170		2522
2171	# if we are delayed by four ticks or more, skip them all	2523	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2524	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2173		2525
2174	$TICK_WATCHER->at ($NEXT_TICK);	2526	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	2527	$TICK_WATCHER->start;
2176	},	2528	},
2177	);	2529	);
2178		2530
		2531	{
		2532	BDB::max_poll_time $TICK * 0.1;
		2533	$BDB_POLL_WATCHER = Event->io (
		2534	reentrant => 0,
		2535	fd => BDB::poll_fileno,
		2536	poll => 'r',
		2537	prio => 0,
		2538	data => WF_AUTOCANCEL,
		2539	cb => \&BDB::poll_cb,
		2540	);
		2541	BDB::min_parallel 8;
		2542
		2543	BDB::set_sync_prepare {
		2544	my $status;
		2545	my $current = $Coro::current;
		2546	(
		2547	sub {
		2548	$status = $!;
		2549	$current->ready; undef $current;
		2550	},
		2551	sub {
		2552	Coro::schedule while defined $current;
		2553	$! = $status;
		2554	},
		2555	)
		2556	};
		2557
		2558	unless ($DB_ENV) {
		2559	$DB_ENV = BDB::db_env_create;
		2560
		2561	cf::sync_job {
		2562	eval {
		2563	BDB::db_env_open
		2564	$DB_ENV,
		2565	$BDB_ENV_DIR,
		2566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2568	0666;
		2569
		2570	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2571
		2572	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2573	$DB_ENV->set_lk_detect;
		2574	};
		2575
		2576	cf::cleanup "db_env_open(db): $@" if $@;
		2577	};
		2578	}
		2579	}
		2580
		2581	{
		2582	IO::AIO::min_parallel 8;
		2583
		2584	undef $Coro::AIO::WATCHER;
2179	IO::AIO::max_poll_time $TICK * 0.2;	2585	IO::AIO::max_poll_time $TICK * 0.1;
2180		2586	$AIO_POLL_WATCHER = Event->io (
2181	Event->io (	2587	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	2588	fd => IO::AIO::poll_fileno,
2183	poll => 'r',	2589	poll => 'r',
2184	prio => 5,	2590	prio => 6,
2185	data => WF_AUTOCANCEL,	2591	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,	2592	cb => \&IO::AIO::poll_cb,
2187	);	2593	);
		2594	}
2188		2595
2189	Event->timer (	2596	$WRITE_RUNTIME_WATCHER = Event->timer (
		2597	reentrant => 0,
2190	data => WF_AUTOCANCEL,	2598	data => WF_AUTOCANCEL,
2191	after => 0,	2599	after => 1,
2192	interval => 10,	2600	interval => 10,
2193	cb => sub {	2601	prio => 6, # keep it lowest so it acts like a watchdog
2194	(Coro::unblock_sub {	2602	cb => Coro::unblock_sub {
2195	write_runtime	2603	write_runtime
2196	or warn "ERROR: unable to write runtime file: $!";	2604	or warn "ERROR: unable to write runtime file: $!";
2197	})->();
2198	},	2605	},
2199	);	2606	);
2200		2607
2201	END { cf::emergency_save }	2608	END { cf::emergency_save }
2202		2609

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