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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.208 by root, Mon Feb 12 00:27:20 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (Coro::PRIO_MAX); # 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		39
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
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	unless (Coro::cede) {	329	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}
272	}	330	}
273		331
274	wantarray ? @res : $res[0]	332	wantarray ? @res : $res[0]
275	} else {	333	} else {
276	# we are in another coroutine, how wonderful, everything just works	334	# we are in another coroutine, how wonderful, everything just works
277		335
278	$job->()	336	$job->()
279	}	337	}
280	}	338	}
281		339
282	=item $coro = cf::coro { BLOCK }	340	=item $coro = cf::async_ext { BLOCK }
283		341
284	Creates (and readies) and returns a new coro. This coro is automcatially	342	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	343	extension calling this is being unloaded.
286		344
287	=cut	345	=cut
288		346
289	sub coro(&) {	347	sub async_ext(&) {
290	my $cb = shift;	348	my $cb = shift;
291		349
292	my $coro = &Coro::async_pool ($cb);	350	my $coro = &Coro::async ($cb);
293		351
294	$coro->on_destroy (sub {	352	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	353	delete $EXT_CORO{$coro+0};
296	});	354	});
297	$EXT_CORO{$coro+0} = $coro;	355	$EXT_CORO{$coro+0} = $coro;
…		…
303	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
304		362
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
306	or return;	364	or return;
307		365
		366	my $value = $cf::RUNTIME + 90 + 10;
308	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
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;	371	and return;
311		372
		373	# always fsync - this file is important
312	aio_fsync $fh	374	aio_fsync $fh
313	and return;	375	and return;
314		376
315	close $fh	377	close $fh
316	or return;	378	or return;
…		…
322	}	384	}
323		385
324	=back	386	=back
325		387
326	=cut	388	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		389
448	#############################################################################	390	#############################################################################
449		391
450	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
451		393
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	520	our @CB_MAP = ();
579		521
580	my %attachment;	522	my %attachment;
581		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
582	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
584		532
585	use sort 'stable';	533	use sort 'stable';
586		534
…		…
757	# object support	705	# object support
758		706
759	sub reattach {	707	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		712
763	my $registry = $obj->registry;	713	my $registry = $obj->registry;
764		714
765	@$registry = ();	715	@$registry = ();
766		716
…		…
813	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
814		764
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	769	close $fh;
820		770
821	if (@$objs) {	771	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	777	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
829	}	779	}
830	} else {	780	} else {
831	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
837	}	787	}
838	} else {	788	} else {
839	aio_unlink $filename;	789	aio_unlink $filename;
840	aio_unlink "$filename.pst";	790	aio_unlink "$filename.pst";
841	}	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	}
842	}	798	}
843	}	799	}
844		800
845	sub object_freezer_as_string {	801	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	802	my ($rdata, $objs) = @_;
…		…
852		808
853	sub object_thawer_load {	809	sub object_thawer_load {
854	my ($filename) = @_;	810	my ($filename) = @_;
855		811
856	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$//;
857		816
858	(aio_load $filename, $data) >= 0	817	(aio_load $filename, $data) >= 0
859	or return;	818	or return;
860		819
861	unless (aio_stat "$filename.pst") {	820	unless (aio_stat "$filename.pst") {
…		…
898	=cut	857	=cut
899		858
900	sub register_extcmd {	859	sub register_extcmd {
901	my ($name, $cb) = @_;	860	my ($name, $cb) = @_;
902		861
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	862	$EXTCMD{$name} = $cb;
907	}	863	}
908		864
909	cf::player->attach (	865	cf::player->attach (
910	on_command => sub {	866	on_command => sub {
911	my ($pl, $name, $params) = @_;	867	my ($pl, $name, $params) = @_;
…		…
924		880
925	my $msg = eval { from_json $buf };	881	my $msg = eval { from_json $buf };
926		882
927	if (ref $msg) {	883	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	885	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	886	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	887	}
932	}	888	}
933	} else {	889	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		892
937	cf::override;	893	cf::override;
938	},	894	},
939	);	895	);
940		896
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	897	sub load_extension {
948	my ($path) = @_;	898	my ($path) = @_;
949		899
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
951	my $base = $1;	901	my $base = $1;
952	my $pkg = $1;	902	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;	903	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";	904	$pkg = "ext::$pkg";
955		905
956	warn "loading '$path' into '$pkg'\n";	906	warn "... loading '$path' into '$pkg'\n";
957		907
958	open my $fh, "<:utf8", $path	908	open my $fh, "<:utf8", $path
959	or die "$path: $!";	909	or die "$path: $!";
960		910
961	my $source =	911	my $source =
962	"package $pkg; use strict; use utf8;\n"	912	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"	913	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })	914	. (do { local $/; <$fh> })
965	. "\n};\n1";	915	. "\n};\n1";
966		916
967	eval $source	917	unless (eval $source) {
968	or die $@ ? "$path: $@\n"	918	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";	919	: "extension disabled.\n";
970		920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	push @exts, $pkg;	921	warn $@;
972	$ext_pkg{$base} = $pkg;	922	warn "mandatory extension failed to load, exiting.\n";
973		923	exit 1;
974	# no strict 'refs';	924	}
975	# @{"$pkg\::ISA"} = ext::;	925	die $@;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	926	}
990		927
991	# remove commands	928	push @EXTS, $pkg;
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}	929	}
1016		930
1017	sub load_extensions {	931	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {	932	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	933	next unless -r $ext;
…		…
1023	} or warn "$ext not loaded: $@";	937	} or warn "$ext not loaded: $@";
1024	}	938	}
1025	}	939	}
1026		940
1027	#############################################################################	941	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064		942
1065	=head2 CORE EXTENSIONS	943	=head2 CORE EXTENSIONS
1066		944
1067	Functions and methods that extend core crossfire objects.	945	Functions and methods that extend core crossfire objects.
1068		946
		947	=cut
		948
		949	package cf::player;
		950
		951	use Coro::AIO;
		952
1069	=head3 cf::player	953	=head3 cf::player
1070		954
1071	=over 4	955	=over 4
1072		956
1073	=item cf::player::exists $login	957	=item cf::player::find $login
1074		958
1075	Returns true when the given account exists.	959	Returns the given player object, loading it if necessary (might block).
1076		960
1077	=cut	961	=cut
1078		962
1079	sub cf::player::exists($) {	963	sub playerdir($) {
1080	cf::player::find $_[0]	964	cf::localdir
1081	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
1082	}	1111	}
1083		1112
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085		1114
1086	Sends an ext reply to the player.	1115	Sends an ext reply to the player.
1087		1116
1088	=cut	1117	=cut
1089		1118
1090	sub cf::player::ext_reply($$$%) {	1119	sub ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;	1120	my ($self, $id, %msg) = @_;
1092		1121
1093	$msg{msgid} = $id;	1122	$msg{msgid} = $id;
1094		1123
1095	$self->send ("ext " . to_json \%msg);	1124	$self->send ("ext " . cf::to_json \%msg);
1096	}	1125	}
		1126
		1127	package cf;
1097		1128
1098	=back	1129	=back
1099		1130
1100		1131
1101	=head3 cf::map	1132	=head3 cf::map
…		…
1107	package cf::map;	1138	package cf::map;
1108		1139
1109	use Fcntl;	1140	use Fcntl;
1110	use Coro::AIO;	1141	use Coro::AIO;
1111		1142
		1143	use overload
		1144	'""' => \&as_string,
		1145	fallback => 1;
		1146
1112	our $MAX_RESET = 3600;	1147	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1148	our $DEFAULT_RESET = 3000;
1114		1149
1115	sub generate_random_map {	1150	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1151	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1152	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1153	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1157	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1158	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1159	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1160	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1161	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$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},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1163	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(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
1132	}	1295	}
1133		1296
1134	# and all this just because we cannot iterate over	1297	# and all this just because we cannot iterate over
1135	# all maps in C++...	1298	# all maps in C++...
1136	sub change_all_map_light {	1299	sub change_all_map_light {
…		…
1138		1301
1139	$_->change_map_light ($change)	1302	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1303	for grep $_->outdoor, values %cf::MAP;
1141	}	1304	}
1142		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
1143	sub try_load_header($) {	1319	sub load_header_from($) {
1144	my ($path) = @_;	1320	my ($self, $path) = @_;
1145		1321
1146	utf8::encode $path;	1322	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1323	#aio_open $path, O_RDONLY, 0
		1324	# or return;
		1325
		1326	$self->_load_header ($path)
1148	or return;	1327	or return;
1149		1328
1150	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
1151	or return;	1372	or return;
		1373	$self->prepare_orig;
		1374	}
1152		1375
1153	# for better error messages only, will be overwritten	1376	1
1154	$map->path ($path);
1155
1156	$map->load_header ($path)
1157	or return;
1158
1159	$map->{load_path} = $path;
1160
1161	$map
1162	}	1377	}
1163		1378
1164	sub find;	1379	sub find;
1165	sub find {	1380	sub find {
1166	my ($path, $origin) = @_;	1381	my ($path, $origin) = @_;
1167		1382
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1383	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1384
1173	cf::lock_wait "map_find:$key";	1385	cf::lock_wait "map_find:$path";
1174		1386
1175	$cf::MAP{$key} || do {	1387	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1388	my $guard = cf::lock_acquire "map_find:$path";
1177		1389	my $map = new_from_path cf::map $path
1178	# do it the slow way
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1390	or return;
1197		1391
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1392	$map->{last_save} = $cf::RUNTIME;
1210		1393
1211	Coro::cede;	1394	$map->load_header
		1395	or return;
1212		1396
1213	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;
1214	$map->reset;	1400	$map->reset;
1215	undef $guard;	1401	undef $guard;
1216	$map = find $path	1402	return find $path;
1217	or return;
1218	}	1403	}
1219		1404
1220	$cf::MAP{$key} = $map	1405	$cf::MAP{$path} = $map
1221	}	1406	}
1222	}	1407	}
		1408
		1409	sub pre_load { }
		1410	sub post_load { }
1223		1411
1224	sub load {	1412	sub load {
1225	my ($self) = @_;	1413	my ($self) = @_;
1226		1414
		1415	local $self->{deny_reset} = 1; # loading can take a long time
		1416
1227	my $path = $self->{path};	1417	my $path = $self->{path};
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1418	my $guard = cf::lock_acquire "map_load:$path";
1229		1419
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1420	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1421
1232	$self->in_memory (cf::MAP_LOADING);	1422	$self->in_memory (cf::MAP_LOADING);
1233		1423
1234	$self->alloc;	1424	$self->alloc;
		1425
		1426	$self->pre_load;
		1427
1235	$self->load_objects ($self->{load_path}, 1)	1428	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1429	or return;
1237		1430
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1432	if delete $self->{load_original};
1240		1433
1241	if (my $uniq = $path->uniq_path) {	1434	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1435	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1436	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1437	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1438	$self->_load_objects ($uniq, 0);
1246	}	1439	}
1247	}	1440	}
1248		1441
1249	Coro::cede;	1442	Coro::cede;
1250		1443
1251	# now do the right thing for maps	1444	# now do the right thing for maps
1252	$self->link_multipart_objects;	1445	$self->link_multipart_objects;
1253		1446
1254	if ($self->{path}->is_style_map) {	1447	unless ($self->{deny_activate}) {
1255	$self->{deny_save} = 1;	1448	$self->decay_objects;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;	1449	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;	1450	$self->update_buttons;
		1451	Coro::cede;
1261	$self->set_darkness_map;	1452	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1453	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1454	unless $self->difficulty;
		1455	Coro::cede;
1264	$self->activate;	1456	$self->activate;
1265	}	1457	}
1266		1458
1267	Coro::cede;	1459	$self->post_load;
1268		1460
1269	$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	}
1270	}	1495	}
1271		1496
1272	sub find_sync {	1497	sub find_sync {
1273	my ($path, $origin) = @_;	1498	my ($path, $origin) = @_;
1274		1499
1275	cf::sync_job {	1500	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1501	}
1280		1502
1281	sub do_load_sync {	1503	sub do_load_sync {
1282	my ($map) = @_;	1504	my ($map) = @_;
1283		1505
1284	cf::sync_job { $map->load };	1506	cf::sync_job { $map->load };
1285	}	1507	}
1286		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
1287	sub save {	1539	sub save {
1288	my ($self) = @_;	1540	my ($self) = @_;
1289		1541
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1543
1292	$self->{last_save} = $cf::RUNTIME;	1544	$self->{last_save} = $cf::RUNTIME;
1293		1545
1294	return unless $self->dirty;	1546	return unless $self->dirty;
1295		1547
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1548	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1549	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1550
1299	$self->{load_path} = $save;	1551	$self->{load_path} = $save;
1300		1552
1301	return if $self->{deny_save};	1553	return if $self->{deny_save};
1302		1554
1303	local $self->{last_access} = $self->last_access;#d#	1555	local $self->{last_access} = $self->last_access;#d#
1304		1556
		1557	cf::async {
		1558	$_->contr->save for $self->players;
		1559	};
		1560
1305	if ($uniq) {	1561	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1564	} else {
1309	$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);
1310	}	1566	}
1311	}	1567	}
1312		1568
1313	sub swap_out {	1569	sub swap_out {
1314	my ($self) = @_;	1570	my ($self) = @_;
…		…
1328		1584
1329	sub reset_at {	1585	sub reset_at {
1330	my ($self) = @_;	1586	my ($self) = @_;
1331		1587
1332	# TODO: safety, remove and allow resettable per-player maps	1588	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};	1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1334	return 1e99 if $self->{deny_reset};	1590	return 1e99 if $self->{deny_reset};
1335		1591
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	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;
1338		1594
…		…
1343	my ($self) = @_;	1599	my ($self) = @_;
1344		1600
1345	$self->reset_at <= $cf::RUNTIME	1601	$self->reset_at <= $cf::RUNTIME
1346	}	1602	}
1347		1603
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	1604	sub reset {
1370	my ($self) = @_;	1605	my ($self) = @_;
1371		1606
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1607	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1608
1374	return if $self->players;	1609	return if $self->players;
1375	return if $self->{path}{user_rel};#d#	1610	return if $self->isa ("ext::map_per_player");#d#
1376		1611
1377	warn "resetting map ", $self->path;#d#	1612	warn "resetting map ", $self->path;#d#
1378		1613
1379	delete $cf::MAP{$self->path};	1614	delete $cf::MAP{$self->path};
		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617	$self->clear;
1380		1618
1381	$_->clear_links_to ($self) for values %cf::MAP;	1619	$_->clear_links_to ($self) for values %cf::MAP;
1382		1620
1383	$self->unlink_save;	1621	$self->unlink_save;
1384	$self->destroy;	1622	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	1625	my $nuke_counter = "aaaa";
1388		1626
1389	sub nuke {	1627	sub nuke {
1390	my ($self) = @_;	1628	my ($self) = @_;
1391		1629
		1630	delete $cf::MAP{$self->path};
		1631
		1632	$self->unlink_save;
		1633
		1634	bless $self, "cf::map";
		1635	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	1636	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	1637	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	1638	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1639
		1640	$cf::MAP{$self->path} = $self;
		1641
1395	$self->reset; # polite request, might not happen	1642	$self->reset; # polite request, might not happen
1396	}	1643	}
1397		1644
1398	sub customise_for {	1645	=item cf::map::unique_maps
1399	my ($map, $ob) = @_;
1400		1646
1401	if ($map->per_player) {	1647	Returns an arrayref of paths of all shared maps that have
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1648	instantiated unique items. May block.
1403	}
1404		1649
1405	$map	1650	=cut
1406	}
1407		1651
1408	sub emergency_save {	1652	sub unique_maps() {
1409	my $freeze_guard = cf::freeze_mainloop;	1653	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1654	or return;
1410		1655
1411	warn "enter emergency map save\n";	1656	my @paths;
1412		1657
1413	cf::sync_job {	1658	for (@$files) {
1414	warn "begin emergency map save\n";	1659	utf8::decode $_;
1415	$_->save for values %cf::MAP;	1660	next if /\.pst$/;
		1661	next unless /^$PATH_SEP/o;
		1662
		1663	push @paths, cf::map::normalise $_;
1416	};	1664	}
1417		1665
1418	warn "end emergency map save\n";	1666	\@paths
1419	}	1667	}
1420		1668
1421	package cf;	1669	package cf;
1422		1670
1423	=back	1671	=back
1424		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
1425		1699
1426	=head3 cf::object::player	1700	=head3 cf::object::player
1427		1701
1428	=over 4	1702	=over 4
1429		1703
…		…
1469		1743
1470	=item $player_object->enter_link	1744	=item $player_object->enter_link
1471		1745
1472	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}>).
1473		1747
1474	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
1475	I<MUST> call C<leave_link> as soon as possible, though.	1749	I<MUST> call C<leave_link> as soon as possible, though.
1476		1750
		1751	Will never block.
		1752
1477	=item $player_object->leave_link ($map, $x, $y)	1753	=item $player_object->leave_link ($map, $x, $y)
1478		1754
1479	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
1480	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
1481	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
1482	to the emergency map position.	1758	fails, to the emergency map position.
1483		1759
1484	Might block.	1760	Might block.
1485		1761
1486	=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	}
1487		1773
1488	sub cf::object::player::enter_link {	1774	sub cf::object::player::enter_link {
1489	my ($self) = @_;	1775	my ($self) = @_;
1490		1776
1491	$self->deactivate_recursive;	1777	$self->deactivate_recursive;
1492		1778
1493	return if $self->map == $LINK_MAP;	1779	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		1780
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1781	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	1782	if $self->map;
1497		1783
1498	$self->enter_map ($LINK_MAP, 20, 20);	1784	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	1785	}
1500		1786
1501	sub cf::object::player::leave_link {	1787	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	1788	my ($self, $map, $x, $y) = @_;
1503		1789
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	1807	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	1808	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	1809	if $x <=0 && $y <= 0;
1524		1810
1525	$map->load;	1811	$map->load;
		1812	$map->load_diag;
1526		1813
		1814	return unless $self->contr->active;
1527	$self->activate_recursive;	1815	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);	1816	$self->enter_map ($map, $x, $y);
1529	}	1817	}
1530		1818
1531	cf::player->attach (	1819	cf::player->attach (
…		…
1543	my ($pl) = @_;	1831	my ($pl) = @_;
1544		1832
1545	# try to abort aborted map switching on player login :)	1833	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes	1834	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {	1835	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;	1836	$pl->ob->enter_link;
1550	(Coro::async_pool {	1837	(async {
1551	# 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
1552	# 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);
1553	Coro::Timer::sleep 1;	1844	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;	1845	$pl->ob->leave_link;
1555	})->prio (2);	1846	})->prio (2);
1556	}	1847	}
1557	},	1848	},
…		…
1564	sub cf::object::player::goto {	1855	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	1856	my ($self, $path, $x, $y) = @_;
1566		1857
1567	$self->enter_link;	1858	$self->enter_link;
1568		1859
1569	(Coro::async_pool {	1860	(async {
1570	$path = new cf::path $path;	1861	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	1862	my $map = cf::map::find $path;
1573	$map = $map->customise_for ($self) if $map;	1863	$map = $map->customise_for ($self) if $map;
1574		1864	$map
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	1865	} or
1576	# if $map;
1577
1578	$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);
1579		1867
1580	$self->leave_link ($map, $x, $y);	1868	$self->leave_link ($map, $x, $y);
1581	})->prio (1);	1869	})->prio (1);
1582	}	1870	}
1583		1871
…		…
1587		1875
1588	sub parse_random_map_params {	1876	sub parse_random_map_params {
1589	my ($spec) = @_;	1877	my ($spec) = @_;
1590		1878
1591	my $rmp = { # defaults	1879	my $rmp = { # defaults
1592	xsize => 10,	1880	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	1881	ysize => (cf::rndm 15, 40),
		1882	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1883	#layout => string,
1594	};	1884	};
1595		1885
1596	for (split /\n/, $spec) {	1886	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	1887	my ($k, $v) = split /\s+/, $_, 2;
1598		1888
…		…
1602	$rmp	1892	$rmp
1603	}	1893	}
1604		1894
1605	sub prepare_random_map {	1895	sub prepare_random_map {
1606	my ($exit) = @_;	1896	my ($exit) = @_;
		1897
		1898	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		1899
1608	# all this does is basically replace the /! path by	1900	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	1901	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	1902	# that depends on the exit object
1611		1903
1612	my $rmp = parse_random_map_params $exit->msg;	1904	my $rmp = parse_random_map_params $exit->msg;
1613		1905
1614	if ($exit->map) {	1906	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	1907	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	1908	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	1909	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	1910	$rmp->{origin_y} = $exit->y;
1619	}	1911	}
1620		1912
1621	$rmp->{random_seed} ||= $exit->random_seed;	1913	$rmp->{random_seed} ||= $exit->random_seed;
1622		1914
1623	my $data = cf::to_json $rmp;	1915	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	1916	my $md5 = Digest::MD5::md5_hex $data;
		1917	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1625		1918
1626	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) {
1627	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;
1628		1923
1629	$exit->slaying ("?random/$md5");	1924	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	1925	$exit->msg (undef);
1631	}	1926	}
1632	}	1927	}
…		…
1634	sub cf::object::player::enter_exit {	1929	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	1930	my ($self, $exit) = @_;
1636		1931
1637	return unless $self->type == cf::PLAYER;	1932	return unless $self->type == cf::PLAYER;
1638		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
1639	$self->enter_link;	1943	$self->enter_link;
1640		1944
1641	(Coro::async_pool {	1945	(async {
1642	$self->deactivate_recursive; # just to be sure	1946	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	1947	unless (eval {
1644	prepare_random_map $exit	1948	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		1949
1650	1;	1950	1;
1651	}) {	1951	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	1952	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "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. "
1654	. "Please report this to the dungeon master",	1954	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	1955	cf::NDI_UNIQUE | cf::NDI_RED);
1656		1956
1657	warn "ERROR in enter_exit: $@";	1957	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	1958	$self->leave_link;
1659	}	1959	}
…		…
1714	# get handled first	2014	# get handled first
1715	my $queue = delete $ns->{query_queue}	2015	my $queue = delete $ns->{query_queue}
1716	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
1717		2017
1718	(shift @$queue)->[1]->($msg);	2018	(shift @$queue)->[1]->($msg);
		2019	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2020
1720	push @{ $ns->{query_queue} }, @$queue;	2021	push @{ $ns->{query_queue} }, @$queue;
1721		2022
1722	if (@{ $ns->{query_queue} } == @$queue) {	2023	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2024	if (@$queue) {
…		…
1727	}	2028	}
1728	}	2029	}
1729	},	2030	},
1730	);	2031	);
1731		2032
1732	=item $client->coro (\&cb)	2033	=item $client->async (\&cb)
1733		2034
1734	Create a new coroutine, running the specified callback. The coroutine will	2035	Create a new coroutine, running the specified callback. The coroutine will
1735	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,
1736	or loss of connection).	2037	or loss of connection).
1737		2038
1738	=cut	2039	=cut
1739		2040
1740	sub cf::client::coro {	2041	sub cf::client::async {
1741	my ($self, $cb) = @_;	2042	my ($self, $cb) = @_;
1742		2043
1743	my $coro = &Coro::async_pool ($cb);	2044	my $coro = &Coro::async ($cb);
1744		2045
1745	$coro->on_destroy (sub {	2046	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2047	delete $self->{_coro}{$coro+0};
1747	});	2048	});
1748		2049
…		…
1884	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
1885	using it, it should be unique.	2186	using it, it should be unique.
1886		2187
1887	=over 4	2188	=over 4
1888		2189
1889	=item $hashref = cf::db_get $family
1890
1891	Return a hashref for use by the extension C<$family>, which can be
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894
1895	=item $value = cf::db_get $family => $key	2190	=item $value = cf::db_get $family => $key
1896		2191
1897	Returns a single value from the database	2192	Returns a single value from the database.
1898
1899	=item cf::db_put $family => $hashref
1900
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903		2193
1904	=item cf::db_put $family => $key => $value	2194	=item cf::db_put $family => $key => $value
1905		2195
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you	2196	Stores the given C<$value> in the family.
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916		2197
1917	=cut	2198	=cut
1918		2199
1919	our $DB;	2200	our $DB;
1920		2201
1921	{	2202	sub db_load() {
		2203	unless ($DB) {
		2204	$DB = BDB::db_create $DB_ENV;
		2205
		2206	cf::sync_job {
		2207	eval {
		2208	$DB->set_flags (BDB::CHKSUM);
		2209
		2210	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2211	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2212	cf::cleanup "db_open(db): $!" if $!;
		2213	};
		2214	cf::cleanup "db_open(db): $@" if $@;
		2215	};
		2216
1922	my $path = cf::localdir . "/database.pst";	2217	my $path = cf::localdir . "/database.pst";
		2218	if (stat $path) {
		2219	cf::sync_job {
		2220	my $pst = Storable::retrieve $path;
1923		2221
1924	sub db_load() {	2222	cf::db_put (board => data => $pst->{board});
1925	$DB = stat $path ? Storable::retrieve $path : { };	2223	cf::db_put (guildrules => data => $pst->{guildrules});
1926	}	2224	cf::db_put (rent => balance => $pst->{rent}{balance});
		2225	BDB::db_env_txn_checkpoint $DB_ENV;
1927		2226
1928	my $pid;	2227	unlink $path;
1929
1930	sub db_save() {
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}	2228	};
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});
1950
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}
1955
1956	sub db_get($;$) {
1957	@_ >= 2
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961
1962	sub db_put($$;$) {
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2229	}
1976	);	2230	}
		2231	}
		2232
		2233	sub db_get($$) {
		2234	my $key = "$_[0]/$_[1]";
		2235
		2236	cf::sync_job {
		2237	BDB::db_get $DB, undef, $key, my $data;
		2238
		2239	$! ? ()
		2240	: Compress::LZF::sthaw $data
		2241	}
		2242	}
		2243
		2244	sub db_put($$$) {
		2245	BDB::dbreq_pri 4;
		2246	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1977	}	2247	}
1978		2248
1979	#############################################################################	2249	#############################################################################
1980	# the server's main()	2250	# the server's init and main functions
		2251
		2252	sub load_resources {
		2253	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2254	or die "unable to load regions file\n";#d#
		2255	}
1981		2256
1982	sub cfg_load {	2257	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2258	open my $fh, "<:utf8", cf::confdir . "/config"
1984	or return;	2259	or return;
1985		2260
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2268
1994	if (exists $CFG{mlockall}) {	2269	if (exists $CFG{mlockall}) {
1995	eval {	2270	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2271	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2272	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2273	};
1999	warn $@ if $@;	2274	warn $@ if $@;
2000	}	2275	}
		2276	}
		2277
		2278	sub init {
		2279	load_resources;
2001	}	2280	}
2002		2281
2003	sub main {	2282	sub main {
2004	# we must not ever block the main coroutine	2283	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2284	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2285	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2286	(async {
		2287	Event::one_event;
		2288	})->prio (Coro::PRIO_MAX);
2008	};	2289	};
2009		2290
2010	cfg_load;	2291	cfg_load;
2011	db_load;	2292	db_load;
2012	load_extensions;	2293	load_extensions;
		2294
		2295	$TICK_WATCHER->start;
2013	Event::loop;	2296	Event::loop;
2014	}	2297	}
2015		2298
2016	#############################################################################	2299	#############################################################################
2017	# initialisation	2300	# initialisation and cleanup
		2301
		2302	# install some emergency cleanup handlers
		2303	BEGIN {
		2304	for my $signal (qw(INT HUP TERM)) {
		2305	Event->signal (
		2306	reentrant => 0,
		2307	data => WF_AUTOCANCEL,
		2308	signal => $signal,
		2309	prio => 0,
		2310	cb => sub {
		2311	cf::cleanup "SIG$signal";
		2312	},
		2313	);
		2314	}
		2315	}
		2316
		2317	sub emergency_save() {
		2318	my $freeze_guard = cf::freeze_mainloop;
		2319
		2320	warn "enter emergency perl save\n";
		2321
		2322	cf::sync_job {
		2323	# use a peculiar iteration method to avoid tripping on perl
		2324	# refcount bugs in for. also avoids problems with players
		2325	# and maps saved/destroyed asynchronously.
		2326	warn "begin emergency player save\n";
		2327	for my $login (keys %cf::PLAYER) {
		2328	my $pl = $cf::PLAYER{$login} or next;
		2329	$pl->valid or next;
		2330	$pl->save;
		2331	}
		2332	warn "end emergency player save\n";
		2333
		2334	warn "begin emergency map save\n";
		2335	for my $path (keys %cf::MAP) {
		2336	my $map = $cf::MAP{$path} or next;
		2337	$map->valid or next;
		2338	$map->save;
		2339	}
		2340	warn "end emergency map save\n";
		2341
		2342	warn "begin emergency database checkpoint\n";
		2343	BDB::db_env_txn_checkpoint $DB_ENV;
		2344	warn "end emergency database checkpoint\n";
		2345	};
		2346
		2347	warn "leave emergency perl save\n";
		2348	}
2018		2349
2019	sub reload() {	2350	sub reload() {
2020	# can/must only be called in main	2351	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2352	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2353	warn "can only reload from main coroutine";
2023	return;	2354	return;
2024	}	2355	}
2025		2356
2026	warn "reloading...";	2357	warn "reloading...";
2027		2358
2028	my $guard = freeze_mainloop;	2359	warn "cancelling server ticker";
		2360	$TICK_WATCHER->cancel;
		2361
2029	cf::emergency_save;	2362	cf::emergency_save;
2030		2363
2031	eval {	2364	eval {
2032	# if anything goes wrong in here, we should simply crash as we already saved	2365	# if anything goes wrong in here, we should simply crash as we already saved
2033		2366
2034	# cancel all watchers	2367	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2368	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2369	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2370	}
2038		2371
		2372	warn "syncing database to disk";
		2373	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2374
		2375	warn "flushing outstanding aio requests";
		2376	for (;;) {
		2377	BDB::flush;
		2378	IO::AIO::flush;
		2379	Coro::cede;
		2380	last unless IO::AIO::nreqs || BDB::nreqs;
		2381	warn "iterate...";
		2382	}
		2383
2039	# cancel all extension coros	2384	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2385	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2386	%EXT_CORO = ();
2042		2387
2043	# unload all extensions	2388	warn "removing commands";
2044	for (@exts) {	2389	%COMMAND = ();
		2390
		2391	warn "removing ext commands";
		2392	%EXTCMD = ();
		2393
		2394	warn "unloading/nuking all extensions";
		2395	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2396	warn "... unloading $pkg";
2046	unload_extension $_;	2397
		2398	if (my $cb = $pkg->can ("unload")) {
		2399	eval {
		2400	$cb->($pkg);
		2401	1
		2402	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2403	}
2048		2404
		2405	warn "... nuking $pkg";
		2406	Symbol::delete_package $pkg;
		2407	}
		2408
2049	# unload all modules loaded from $LIBDIR	2409	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2410	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2411	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2412
2053	warn "removing <$k>";	2413	warn "... unloading $k";
2054	delete $INC{$k};	2414	delete $INC{$k};
2055		2415
2056	$k =~ s/\.pm$//;	2416	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	2417	$k =~ s/\//::/g;
2058		2418
…		…
2061	}	2421	}
2062		2422
2063	Symbol::delete_package $k;	2423	Symbol::delete_package $k;
2064	}	2424	}
2065		2425
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	2426	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	2427	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2428	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		2429
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	2430	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	2431	delete $INC{"cf.pm"};
2079		2432
2080	# don't, removes xs symbols, too,	2433	# don't, removes xs symbols, too,
2081	# and global variables created in xs	2434	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	2435	#Symbol::delete_package __PACKAGE__;
2083		2436
2084	# reload cf.pm	2437	warn "unload completed, starting to reload now";
		2438
2085	warn "reloading cf.pm";	2439	warn "reloading cf.pm";
2086	require cf;	2440	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2441	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		2442
2089	# load config and database again	2443	warn "loading config and database again";
2090	cf::cfg_load;	2444	cf::cfg_load;
2091	cf::db_load;	2445	cf::db_load;
2092		2446
2093	# load extensions
2094	warn "load extensions";	2447	warn "loading extensions";
2095	cf::load_extensions;	2448	cf::load_extensions;
2096		2449
2097	# reattach attachments to objects	2450	warn "reattaching attachments to objects/players";
2098	warn "reattach";
2099	_global_reattach;	2451	_global_reattach;
		2452	warn "reattaching attachments to maps";
		2453	reattach $_ for values %MAP;
		2454
		2455	warn "loading reloadable resources";
		2456	load_resources;
		2457
		2458	warn "restarting server ticker";
		2459
		2460	$TICK_WATCHER->start;
2100	};	2461	};
2101		2462
2102	if ($@) {	2463	if ($@) {
2103	warn $@;	2464	warn $@;
2104	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
2105	exit 1;	2466	exit 1;
2106	}	2467	}
2107		2468
2108	warn "reloaded successfully";	2469	warn "reloaded";
2109	};	2470	};
2110		2471
2111	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
2112
2113	unless ($LINK_MAP) {
2114	$LINK_MAP = cf::map::new;
2115
2116	$LINK_MAP->width (41);
2117	$LINK_MAP->height (41);
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,
2126	cb => sub {
2127	$_[0]->w->cancel;
2128
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});
2147
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}
2153
2154	register "<global>", __PACKAGE__;
2155		2473
2156	register_command "reload" => sub {	2474	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
2158		2476
2159	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");	2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
2161	reload;	2488	reload;
2162	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
2163	}	2492	}
2164	};	2493	};
2165		2494
2166	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
2167		2498
2168	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
2170	prio => 0,	2502	prio => 0,
2171	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
2173	cb => sub {	2505	cb => sub {
		2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
2174	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	$WAIT_FOR_TICK->broadcast;
		2519	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2520
		2521	Event::sweep;
		2522	Coro::cede_notself;
		2523
		2524	# my $AFTER = Event::time;
		2525	# warn $AFTER - $NOW;#d#
2177		2526
2178	# if we are delayed by four ticks or more, skip them all	2527	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2528	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		2529
2181	$TICK_WATCHER->at ($NEXT_TICK);	2530	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	2531	$TICK_WATCHER->start;
2183	},	2532	},
2184	);	2533	);
2185		2534
		2535	{
		2536	BDB::max_poll_time $TICK * 0.1;
		2537	$BDB_POLL_WATCHER = Event->io (
		2538	reentrant => 0,
		2539	fd => BDB::poll_fileno,
		2540	poll => 'r',
		2541	prio => 0,
		2542	data => WF_AUTOCANCEL,
		2543	cb => \&BDB::poll_cb,
		2544	);
		2545	BDB::min_parallel 8;
		2546
		2547	BDB::set_sync_prepare {
		2548	my $status;
		2549	my $current = $Coro::current;
		2550	(
		2551	sub {
		2552	$status = $!;
		2553	$current->ready; undef $current;
		2554	},
		2555	sub {
		2556	Coro::schedule while defined $current;
		2557	$! = $status;
		2558	},
		2559	)
		2560	};
		2561
		2562	unless ($DB_ENV) {
		2563	$DB_ENV = BDB::db_env_create;
		2564
		2565	cf::sync_job {
		2566	eval {
		2567	BDB::db_env_open
		2568	$DB_ENV,
		2569	$BDB_ENV_DIR,
		2570	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2571	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2572	0666;
		2573
		2574	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2575
		2576	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2577	$DB_ENV->set_lk_detect;
		2578	};
		2579
		2580	cf::cleanup "db_env_open(db): $@" if $@;
		2581	};
		2582	}
		2583	}
		2584
		2585	{
		2586	IO::AIO::min_parallel 8;
		2587
		2588	undef $Coro::AIO::WATCHER;
2186	IO::AIO::max_poll_time $TICK * 0.2;	2589	IO::AIO::max_poll_time $TICK * 0.1;
2187		2590	$AIO_POLL_WATCHER = Event->io (
2188	Event->io (	2591	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	2592	fd => IO::AIO::poll_fileno,
2190	poll => 'r',	2593	poll => 'r',
2191	prio => 5,	2594	prio => 6,
2192	data => WF_AUTOCANCEL,	2595	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,	2596	cb => \&IO::AIO::poll_cb,
2194	);	2597	);
		2598	}
2195		2599
2196	Event->timer (	2600	$WRITE_RUNTIME_WATCHER = Event->timer (
		2601	reentrant => 0,
2197	data => WF_AUTOCANCEL,	2602	data => WF_AUTOCANCEL,
2198	after => 0,	2603	after => 1,
2199	interval => 10,	2604	interval => 10,
2200	cb => sub {	2605	prio => 6, # keep it lowest so it acts like a watchdog
2201	(Coro::unblock_sub {	2606	cb => Coro::unblock_sub {
2202	write_runtime	2607	write_runtime
2203	or warn "ERROR: unable to write runtime file: $!";	2608	or warn "ERROR: unable to write runtime file: $!";
2204	})->();
2205	},	2609	},
2206	);	2610	);
2207		2611
2208	END { cf::emergency_save }	2612	END { cf::emergency_save }
2209		2613

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