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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.211 by root, Tue Feb 13 16:23:32 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;
298		356
299	$coro	357	$coro
300	}	358	}
301		359
302	sub write_runtime {	360	sub write_runtime {
		361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
		362
303	my $runtime = cf::localdir . "/runtime";	363	my $runtime = cf::localdir . "/runtime";
304		364
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
306	or return;	366	or return;
307		367
		368	my $value = $cf::RUNTIME + 90 + 10;
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	369	# 10 is the runtime save interval, for a monotonic clock
		370	# 60 allows for the watchdog to kill the server.
		371
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0	372	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;	373	and return;
311		374
		375	# always fsync - this file is important
312	aio_fsync $fh	376	aio_fsync $fh
313	and return;	377	and return;
314		378
315	close $fh	379	close $fh
316	or return;	380	or return;
…		…
322	}	386	}
323		387
324	=back	388	=back
325		389
326	=cut	390	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($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		391
448	#############################################################################	392	#############################################################################
449		393
450	=head2 ATTACHABLE OBJECTS	394	=head2 ATTACHABLE OBJECTS
451		395
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	521	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	522	our @CB_MAP = ();
579		523
580	my %attachment;	524	my %attachment;
581		525
		526	sub cf::attachable::thawer_merge {
		527	# simply override everything except _meta
		528	local $_[0]{_meta};
		529	%{$_[0]} = %{$_[1]};
		530	}
		531
582	sub _attach_cb($$$$) {	532	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	533	my ($registry, $event, $prio, $cb) = @_;
584		534
585	use sort 'stable';	535	use sort 'stable';
586		536
…		…
757	# object support	707	# object support
758		708
759	sub reattach {	709	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	710	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	711	my ($obj) = @_;
		712
		713	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		714
763	my $registry = $obj->registry;	715	my $registry = $obj->registry;
764		716
765	@$registry = ();	717	@$registry = ();
766		718
…		…
813	$filename, length $$rdata, scalar @$objs;	765	$filename, length $$rdata, scalar @$objs;
814		766
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	767	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	768	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	769	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	770	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	771	close $fh;
820		772
821	if (@$objs) {	773	if (@$objs) {
822	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	774	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	775	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	776	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	777	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	778	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	779	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	780	aio_rename "$filename.pst~", "$filename.pst";
829	}	781	}
830	} else {	782	} else {
831	aio_unlink "$filename.pst";	783	aio_unlink "$filename.pst";
…		…
837	}	789	}
838	} else {	790	} else {
839	aio_unlink $filename;	791	aio_unlink $filename;
840	aio_unlink "$filename.pst";	792	aio_unlink "$filename.pst";
841	}	793	}
		794
		795	#d##TODO# nuke non .map-files if exist
		796	if ($filename =~ s/\.map$//) {
		797	aio_unlink $filename;
		798	aio_unlink "$filename.pst";
		799	}
842	}	800	}
843	}	801	}
844		802
845	sub object_freezer_as_string {	803	sub object_freezer_as_string {
846	my ($rdata, $objs) = @_;	804	my ($rdata, $objs) = @_;
…		…
852		810
853	sub object_thawer_load {	811	sub object_thawer_load {
854	my ($filename) = @_;	812	my ($filename) = @_;
855		813
856	my ($data, $av);	814	my ($data, $av);
		815
		816	#d#TODO remove .map if file does not exist
		817	aio_stat $filename and $filename =~ s/\.map$//;
857		818
858	(aio_load $filename, $data) >= 0	819	(aio_load $filename, $data) >= 0
859	or return;	820	or return;
860		821
861	unless (aio_stat "$filename.pst") {	822	unless (aio_stat "$filename.pst") {
…		…
898	=cut	859	=cut
899		860
900	sub register_extcmd {	861	sub register_extcmd {
901	my ($name, $cb) = @_;	862	my ($name, $cb) = @_;
902		863
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	864	$EXTCMD{$name} = $cb;
907	}	865	}
908		866
909	cf::player->attach (	867	cf::player->attach (
910	on_command => sub {	868	on_command => sub {
911	my ($pl, $name, $params) = @_;	869	my ($pl, $name, $params) = @_;
…		…
924		882
925	my $msg = eval { from_json $buf };	883	my $msg = eval { from_json $buf };
926		884
927	if (ref $msg) {	885	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	886	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	887	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	888	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	889	}
932	}	890	}
933	} else {	891	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	892	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		894
937	cf::override;	895	cf::override;
938	},	896	},
939	);	897	);
940		898
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	sub load_extension {	899	sub load_extension {
948	my ($path) = @_;	900	my ($path) = @_;
949		901
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
951	my $base = $1;	903	my $base = $1;
952	my $pkg = $1;	904	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;	905	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";	906	$pkg = "ext::$pkg";
955		907
956	warn "loading '$path' into '$pkg'\n";	908	warn "... loading '$path' into '$pkg'\n";
957		909
958	open my $fh, "<:utf8", $path	910	open my $fh, "<:utf8", $path
959	or die "$path: $!";	911	or die "$path: $!";
960		912
961	my $source =	913	my $source =
962	"package $pkg; use strict; use utf8;\n"	914	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"	915	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })	916	. (do { local $/; <$fh> })
965	. "\n};\n1";	917	. "\n};\n1";
966		918
967	eval $source	919	unless (eval $source) {
968	or die $@ ? "$path: $@\n"	920	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";	921	: "extension disabled.\n";
970		922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	push @exts, $pkg;	923	warn $@;
972	$ext_pkg{$base} = $pkg;	924	warn "mandatory extension failed to load, exiting.\n";
973		925	exit 1;
974	# no strict 'refs';	926	}
975	# @{"$pkg\::ISA"} = ext::;	927	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	# }	928	}
990		929
991	# remove commands	930	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	}	931	}
1016		932
1017	sub load_extensions {	933	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {	934	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;	935	next unless -r $ext;
…		…
1023	} or warn "$ext not loaded: $@";	939	} or warn "$ext not loaded: $@";
1024	}	940	}
1025	}	941	}
1026		942
1027	#############################################################################	943	#############################################################################
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		944
1065	=head2 CORE EXTENSIONS	945	=head2 CORE EXTENSIONS
1066		946
1067	Functions and methods that extend core crossfire objects.	947	Functions and methods that extend core crossfire objects.
1068		948
		949	=cut
		950
		951	package cf::player;
		952
		953	use Coro::AIO;
		954
1069	=head3 cf::player	955	=head3 cf::player
1070		956
1071	=over 4	957	=over 4
1072		958
1073	=item cf::player::exists $login	959	=item cf::player::find $login
1074		960
1075	Returns true when the given account exists.	961	Returns the given player object, loading it if necessary (might block).
1076		962
1077	=cut	963	=cut
1078		964
1079	sub cf::player::exists($) {	965	sub playerdir($) {
1080	cf::player::find $_[0]	966	cf::localdir
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	967	. "/"
		968	. cf::playerdir
		969	. "/"
		970	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		971	}
		972
		973	sub path($) {
		974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		975
		976	(playerdir $login) . "/$login.pl"
		977	}
		978
		979	sub find_active($) {
		980	$cf::PLAYER{$_[0]}
		981	and $cf::PLAYER{$_[0]}->active
		982	and $cf::PLAYER{$_[0]}
		983	}
		984
		985	sub exists($) {
		986	my ($login) = @_;
		987
		988	$cf::PLAYER{$login}
		989	or cf::sync_job { !aio_stat path $login }
		990	}
		991
		992	sub find($) {
		993	return $cf::PLAYER{$_[0]} || do {
		994	my $login = $_[0];
		995
		996	my $guard = cf::lock_acquire "user_find:$login";
		997
		998	$cf::PLAYER{$_[0]} || do {
		999	my $pl = load_pl path $login
		1000	or return;
		1001	$cf::PLAYER{$login} = $pl
		1002	}
		1003	}
		1004	}
		1005
		1006	sub save($) {
		1007	my ($pl) = @_;
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	my $path = path $pl;
		1012	my $guard = cf::lock_acquire "user_save:$path";
		1013
		1014	return if $pl->{deny_save};
		1015
		1016	aio_mkdir playerdir $pl, 0770;
		1017	$pl->{last_save} = $cf::RUNTIME;
		1018
		1019	$pl->save_pl ($path);
		1020	Coro::cede;
		1021	}
		1022
		1023	sub new($) {
		1024	my ($login) = @_;
		1025
		1026	my $self = create;
		1027
		1028	$self->ob->name ($login);
		1029	$self->{deny_save} = 1;
		1030
		1031	$cf::PLAYER{$login} = $self;
		1032
		1033	$self
		1034	}
		1035
		1036	=item $pl->quit_character
		1037
		1038	Nukes the player without looking back. If logged in, the connection will
		1039	be destroyed. May block for a long time.
		1040
		1041	=cut
		1042
		1043	sub quit_character {
		1044	my ($pl) = @_;
		1045
		1046	$pl->{deny_save} = 1;
		1047	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1048
		1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1050	$pl->deactivate;
		1051	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1052	$pl->ns->destroy if $pl->ns;
		1053
		1054	my $path = playerdir $pl;
		1055	my $temp = "$path~$cf::RUNTIME~deleting~";
		1056	aio_rename $path, $temp;
		1057	delete $cf::PLAYER{$pl->ob->name};
		1058	$pl->destroy;
		1059	IO::AIO::aio_rmtree $temp;
		1060	}
		1061
		1062	=item cf::player::list_logins
		1063
		1064	Returns am arrayref of all valid playernames in the system, can take a
		1065	while and may block, so not sync_job-capable, ever.
		1066
		1067	=cut
		1068
		1069	sub list_logins {
		1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1071	or return [];
		1072
		1073	my @logins;
		1074
		1075	for my $login (@$dirs) {
		1076	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1077	aio_read $fh, 0, 512, my $buf, 0 or next;
		1078	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1079
		1080	utf8::decode $login;
		1081	push @logins, $login;
		1082	}
		1083
		1084	\@logins
		1085	}
		1086
		1087	=item $player->maps
		1088
		1089	Returns an arrayref of map paths that are private for this
		1090	player. May block.
		1091
		1092	=cut
		1093
		1094	sub maps($) {
		1095	my ($pl) = @_;
		1096
		1097	$pl = ref $pl ? $pl->ob->name : $pl;
		1098
		1099	my $files = aio_readdir playerdir $pl
		1100	or return;
		1101
		1102	my @paths;
		1103
		1104	for (@$files) {
		1105	utf8::decode $_;
		1106	next if /\.(?:pl|pst)$/;
		1107	next unless /^$PATH_SEP/o;
		1108
		1109	push @paths, cf::map::normalise "~$pl/$_";
		1110	}
		1111
		1112	\@paths
1082	}	1113	}
1083		1114
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)	1115	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085		1116
1086	Sends an ext reply to the player.	1117	Sends an ext reply to the player.
1087		1118
1088	=cut	1119	=cut
1089		1120
1090	sub cf::player::ext_reply($$$%) {	1121	sub ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;	1122	my ($self, $id, %msg) = @_;
1092		1123
1093	$msg{msgid} = $id;	1124	$msg{msgid} = $id;
1094		1125
1095	$self->send ("ext " . to_json \%msg);	1126	$self->send ("ext " . cf::to_json \%msg);
1096	}	1127	}
		1128
		1129	package cf;
1097		1130
1098	=back	1131	=back
1099		1132
1100		1133
1101	=head3 cf::map	1134	=head3 cf::map
…		…
1107	package cf::map;	1140	package cf::map;
1108		1141
1109	use Fcntl;	1142	use Fcntl;
1110	use Coro::AIO;	1143	use Coro::AIO;
1111		1144
		1145	use overload
		1146	'""' => \&as_string,
		1147	fallback => 1;
		1148
1112	our $MAX_RESET = 3600;	1149	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1150	our $DEFAULT_RESET = 3000;
1114		1151
1115	sub generate_random_map {	1152	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1153	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1154	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1155	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1156	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1157	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1158	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1159	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1160	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1161	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1162	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1163	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1164	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1165	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1166	(cf::region::find $rmp->{region}), $rmp->{custom}
		1167	)
		1168	}
		1169
		1170	=item cf::map->register ($regex, $prio)
		1171
		1172	Register a handler for the map path matching the given regex at the
		1173	givne priority (higher is better, built-in handlers have priority 0, the
		1174	default).
		1175
		1176	=cut
		1177
		1178	sub register {
		1179	my (undef, $regex, $prio) = @_;
		1180	my $pkg = caller;
		1181
		1182	no strict;
		1183	push @{"$pkg\::ISA"}, __PACKAGE__;
		1184
		1185	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1186	}
		1187
		1188	# also paths starting with '/'
		1189	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1190
		1191	sub thawer_merge {
		1192	my ($self, $merge) = @_;
		1193
		1194	# we have to keep some variables in memory intact
		1195	local $self->{path};
		1196	local $self->{load_path};
		1197	local $self->{deny_save};
		1198	local $self->{deny_reset};
		1199
		1200	$self->SUPER::thawer_merge ($merge);
		1201	}
		1202
		1203	sub normalise {
		1204	my ($path, $base) = @_;
		1205
		1206	$path = "$path"; # make sure its a string
		1207
		1208	$path =~ s/\.map$//;
		1209
		1210	# map plan:
		1211	#
		1212	# /! non-realised random map exit (special hack!)
		1213	# {... are special paths that are not being touched
		1214	# ?xxx/... are special absolute paths
		1215	# ?random/... random maps
		1216	# /... normal maps
		1217	# ~user/... per-player map of a specific user
		1218
		1219	$path =~ s/$PATH_SEP/\//go;
		1220
		1221	# treat it as relative path if it starts with
		1222	# something that looks reasonable
		1223	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1224	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1225
		1226	$base =~ s{[^/]+/?$}{};
		1227	$path = "$base/$path";
		1228	}
		1229
		1230	for ($path) {
		1231	redo if s{//}{/};
		1232	redo if s{/\.?/}{/};
		1233	redo if s{/[^/]+/\.\./}{/};
		1234	}
		1235
		1236	$path
		1237	}
		1238
		1239	sub new_from_path {
		1240	my (undef, $path, $base) = @_;
		1241
		1242	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1243
		1244	$path = normalise $path, $base;
		1245
		1246	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1247	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1248	my $self = bless cf::map::new, $pkg;
		1249	$self->{path} = $path; $self->path ($path);
		1250	$self->init; # pass $1 etc.
		1251	return $self;
		1252	}
		1253	}
		1254
		1255	Carp::carp "unable to resolve path '$path' (base '$base').";
		1256	()
		1257	}
		1258
		1259	sub init {
		1260	my ($self) = @_;
		1261
		1262	$self
		1263	}
		1264
		1265	sub as_string {
		1266	my ($self) = @_;
		1267
		1268	"$self->{path}"
		1269	}
		1270
		1271	# the displayed name, this is a one way mapping
		1272	sub visible_name {
		1273	&as_string
		1274	}
		1275
		1276	# the original (read-only) location
		1277	sub load_path {
		1278	my ($self) = @_;
		1279
		1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1281	}
		1282
		1283	# the temporary/swap location
		1284	sub save_path {
		1285	my ($self) = @_;
		1286
		1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1289	}
		1290
		1291	# the unique path, undef == no special unique path
		1292	sub uniq_path {
		1293	my ($self) = @_;
		1294
		1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1132	}	1297	}
1133		1298
1134	# and all this just because we cannot iterate over	1299	# and all this just because we cannot iterate over
1135	# all maps in C++...	1300	# all maps in C++...
1136	sub change_all_map_light {	1301	sub change_all_map_light {
…		…
1138		1303
1139	$_->change_map_light ($change)	1304	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1305	for grep $_->outdoor, values %cf::MAP;
1141	}	1306	}
1142		1307
		1308	sub unlink_save {
		1309	my ($self) = @_;
		1310
		1311	utf8::encode (my $save = $self->save_path);
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1314
		1315	#d#TODO remove .map and also nuke
		1316	$save =~ s/\.map// or return;#d#
		1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1319	}
		1320
1143	sub try_load_header($) {	1321	sub load_header_from($) {
1144	my ($path) = @_;	1322	my ($self, $path) = @_;
1145		1323
1146	utf8::encode $path;	1324	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1325	#aio_open $path, O_RDONLY, 0
		1326	# or return;
		1327
		1328	$self->_load_header ($path)
1148	or return;	1329	or return;
1149		1330
1150	my $map = cf::map::new	1331	$self->{load_path} = $path;
		1332
		1333	1
		1334	}
		1335
		1336	sub load_header_orig {
		1337	my ($self) = @_;
		1338
		1339	$self->load_header_from ($self->load_path)
		1340	}
		1341
		1342	sub load_header_temp {
		1343	my ($self) = @_;
		1344
		1345	$self->load_header_from ($self->save_path)
		1346	}
		1347
		1348	sub prepare_temp {
		1349	my ($self) = @_;
		1350
		1351	$self->last_access ((delete $self->{last_access})
		1352	|| $cf::RUNTIME); #d#
		1353	# safety
		1354	$self->{instantiate_time} = $cf::RUNTIME
		1355	if $self->{instantiate_time} > $cf::RUNTIME;
		1356	}
		1357
		1358	sub prepare_orig {
		1359	my ($self) = @_;
		1360
		1361	$self->{load_original} = 1;
		1362	$self->{instantiate_time} = $cf::RUNTIME;
		1363	$self->last_access ($cf::RUNTIME);
		1364	$self->instantiate;
		1365	}
		1366
		1367	sub load_header {
		1368	my ($self) = @_;
		1369
		1370	if ($self->load_header_temp) {
		1371	$self->prepare_temp;
		1372	} else {
		1373	$self->load_header_orig
1151	or return;	1374	or return;
		1375	$self->prepare_orig;
		1376	}
1152		1377
1153	# for better error messages only, will be overwritten	1378	1
1154	$map->path ($path);
1155
1156	$map->load_header ($path)
1157	or return;
1158
1159	$map->{load_path} = $path;
1160
1161	$map
1162	}	1379	}
1163		1380
1164	sub find;	1381	sub find;
1165	sub find {	1382	sub find {
1166	my ($path, $origin) = @_;	1383	my ($path, $origin) = @_;
1167		1384
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1385	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1386
1173	cf::lock_wait "map_find:$key";	1387	cf::lock_wait "map_find:$path";
1174		1388
1175	$cf::MAP{$key} || do {	1389	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1390	my $guard = cf::lock_acquire "map_find:$path";
1177		1391	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;	1392	or return;
1197		1393
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;	1394	$map->{last_save} = $cf::RUNTIME;
1210		1395
1211	Coro::cede;	1396	$map->load_header
		1397	or return;
1212		1398
1213	if ($map->should_reset) {	1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1400	# doing this can freeze the server in a sync job, obviously
		1401	#$cf::WAIT_FOR_TICK->wait;
1214	$map->reset;	1402	$map->reset;
1215	undef $guard;	1403	undef $guard;
1216	$map = find $path	1404	return find $path;
1217	or return;
1218	}	1405	}
1219		1406
1220	$cf::MAP{$key} = $map	1407	$cf::MAP{$path} = $map
1221	}	1408	}
1222	}	1409	}
		1410
		1411	sub pre_load { }
		1412	sub post_load { }
1223		1413
1224	sub load {	1414	sub load {
1225	my ($self) = @_;	1415	my ($self) = @_;
1226		1416
		1417	local $self->{deny_reset} = 1; # loading can take a long time
		1418
1227	my $path = $self->{path};	1419	my $path = $self->{path};
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1420	my $guard = cf::lock_acquire "map_load:$path";
1229		1421
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1422	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1423
1232	$self->in_memory (cf::MAP_LOADING);	1424	$self->in_memory (cf::MAP_LOADING);
1233		1425
1234	$self->alloc;	1426	$self->alloc;
		1427
		1428	$self->pre_load;
		1429
1235	$self->load_objects ($self->{load_path}, 1)	1430	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1431	or return;
1237		1432
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1434	if delete $self->{load_original};
1240		1435
1241	if (my $uniq = $path->uniq_path) {	1436	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1437	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1438	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1439	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1440	$self->_load_objects ($uniq, 0);
1246	}	1441	}
1247	}	1442	}
1248		1443
1249	Coro::cede;	1444	Coro::cede;
1250		1445
1251	# now do the right thing for maps	1446	# now do the right thing for maps
1252	$self->link_multipart_objects;	1447	$self->link_multipart_objects;
1253		1448
1254	if ($self->{path}->is_style_map) {	1449	unless ($self->{deny_activate}) {
1255	$self->{deny_save} = 1;	1450	$self->decay_objects;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;	1451	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;	1452	$self->update_buttons;
		1453	Coro::cede;
1261	$self->set_darkness_map;	1454	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1455	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1456	unless $self->difficulty;
		1457	Coro::cede;
1264	$self->activate;	1458	$self->activate;
1265	}	1459	}
1266		1460
1267	Coro::cede;	1461	$self->post_load;
1268		1462
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1463	$self->in_memory (cf::MAP_IN_MEMORY);
		1464	}
		1465
		1466	sub customise_for {
		1467	my ($self, $ob) = @_;
		1468
		1469	return find "~" . $ob->name . "/" . $self->{path}
		1470	if $self->per_player;
		1471
		1472	$self
		1473	}
		1474
		1475	# find and load all maps in the 3x3 area around a map
		1476	sub load_diag {
		1477	my ($map) = @_;
		1478
		1479	my @diag; # diagonal neighbours
		1480
		1481	for (0 .. 3) {
		1482	my $neigh = $map->tile_path ($_)
		1483	or next;
		1484	$neigh = find $neigh, $map
		1485	or next;
		1486	$neigh->load;
		1487
		1488	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1489	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1490	}
		1491
		1492	for (@diag) {
		1493	my $neigh = find @$_
		1494	or next;
		1495	$neigh->load;
		1496	}
1270	}	1497	}
1271		1498
1272	sub find_sync {	1499	sub find_sync {
1273	my ($path, $origin) = @_;	1500	my ($path, $origin) = @_;
1274		1501
1275	cf::sync_job {	1502	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1503	}
1280		1504
1281	sub do_load_sync {	1505	sub do_load_sync {
1282	my ($map) = @_;	1506	my ($map) = @_;
1283		1507
1284	cf::sync_job { $map->load };	1508	cf::sync_job { $map->load };
1285	}	1509	}
1286		1510
		1511	our %MAP_PREFETCH;
		1512	our $MAP_PREFETCHER = undef;
		1513
		1514	sub find_async {
		1515	my ($path, $origin) = @_;
		1516
		1517	$path = normalise $path, $origin && $origin->{path};
		1518
		1519	if (my $map = $cf::MAP{$path}) {
		1520	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1521	}
		1522
		1523	undef $MAP_PREFETCH{$path};
		1524	$MAP_PREFETCHER ||= cf::async {
		1525	while (%MAP_PREFETCH) {
		1526	for my $path (keys %MAP_PREFETCH) {
		1527	my $map = find $path
		1528	or next;
		1529	$map->load;
		1530
		1531	delete $MAP_PREFETCH{$path};
		1532	}
		1533	}
		1534	undef $MAP_PREFETCHER;
		1535	};
		1536	$MAP_PREFETCHER->prio (6);
		1537
		1538	()
		1539	}
		1540
1287	sub save {	1541	sub save {
1288	my ($self) = @_;	1542	my ($self) = @_;
1289		1543
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1544	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1545
1292	$self->{last_save} = $cf::RUNTIME;	1546	$self->{last_save} = $cf::RUNTIME;
1293		1547
1294	return unless $self->dirty;	1548	return unless $self->dirty;
1295		1549
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1550	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1551	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1552
1299	$self->{load_path} = $save;	1553	$self->{load_path} = $save;
1300		1554
1301	return if $self->{deny_save};	1555	return if $self->{deny_save};
1302		1556
1303	local $self->{last_access} = $self->last_access;#d#	1557	local $self->{last_access} = $self->last_access;#d#
1304		1558
		1559	cf::async {
		1560	$_->contr->save for $self->players;
		1561	};
		1562
1305	if ($uniq) {	1563	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1564	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1565	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1566	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1567	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1568	}
1311	}	1569	}
1312		1570
1313	sub swap_out {	1571	sub swap_out {
1314	my ($self) = @_;	1572	my ($self) = @_;
…		…
1328		1586
1329	sub reset_at {	1587	sub reset_at {
1330	my ($self) = @_;	1588	my ($self) = @_;
1331		1589
1332	# TODO: safety, remove and allow resettable per-player maps	1590	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};	1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
1334	return 1e99 if $self->{deny_reset};	1592	return 1e99 if $self->{deny_reset};
1335		1593
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1595	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1596
…		…
1343	my ($self) = @_;	1601	my ($self) = @_;
1344		1602
1345	$self->reset_at <= $cf::RUNTIME	1603	$self->reset_at <= $cf::RUNTIME
1346	}	1604	}
1347		1605
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 {	1606	sub reset {
1370	my ($self) = @_;	1607	my ($self) = @_;
1371		1608
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1609	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1610
1374	return if $self->players;	1611	return if $self->players;
1375	return if $self->{path}{user_rel};#d#	1612	return if $self->isa ("ext::map_per_player");#d#
1376		1613
1377	warn "resetting map ", $self->path;#d#	1614	warn "resetting map ", $self->path;#d#
1378		1615
		1616	$self->in_memory (cf::MAP_SWAPPED);
		1617
		1618	# need to save uniques path
		1619	unless ($self->{deny_save}) {
		1620	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1621
		1622	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1623	if $uniq;
		1624	}
		1625
1379	delete $cf::MAP{$self->path};	1626	delete $cf::MAP{$self->path};
		1627
		1628	$self->clear;
1380		1629
1381	$_->clear_links_to ($self) for values %cf::MAP;	1630	$_->clear_links_to ($self) for values %cf::MAP;
1382		1631
1383	$self->unlink_save;	1632	$self->unlink_save;
1384	$self->destroy;	1633	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	1636	my $nuke_counter = "aaaa";
1388		1637
1389	sub nuke {	1638	sub nuke {
1390	my ($self) = @_;	1639	my ($self) = @_;
1391		1640
		1641	delete $cf::MAP{$self->path};
		1642
		1643	$self->unlink_save;
		1644
		1645	bless $self, "cf::map";
		1646	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	1647	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	1648	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	1649	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1650
		1651	$cf::MAP{$self->path} = $self;
		1652
1395	$self->reset; # polite request, might not happen	1653	$self->reset; # polite request, might not happen
1396	}	1654	}
1397		1655
1398	sub customise_for {	1656	=item cf::map::unique_maps
1399	my ($map, $ob) = @_;
1400		1657
1401	if ($map->per_player) {	1658	Returns an arrayref of paths of all shared maps that have
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1659	instantiated unique items. May block.
1403	}
1404		1660
1405	$map	1661	=cut
1406	}
1407		1662
1408	sub emergency_save {	1663	sub unique_maps() {
1409	my $freeze_guard = cf::freeze_mainloop;	1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1665	or return;
1410		1666
1411	warn "enter emergency map save\n";	1667	my @paths;
1412		1668
1413	cf::sync_job {	1669	for (@$files) {
1414	warn "begin emergency map save\n";	1670	utf8::decode $_;
1415	$_->save for values %cf::MAP;	1671	next if /\.pst$/;
		1672	next unless /^$PATH_SEP/o;
		1673
		1674	push @paths, cf::map::normalise $_;
1416	};	1675	}
1417		1676
1418	warn "end emergency map save\n";	1677	\@paths
1419	}	1678	}
1420		1679
1421	package cf;	1680	package cf;
1422		1681
1423	=back	1682	=back
1424		1683
		1684	=head3 cf::object
		1685
		1686	=cut
		1687
		1688	package cf::object;
		1689
		1690	=over 4
		1691
		1692	=item $ob->inv_recursive
		1693
		1694	Returns the inventory of the object _and_ their inventories, recursively.
		1695
		1696	=cut
		1697
		1698	sub inv_recursive_;
		1699	sub inv_recursive_ {
		1700	map { $_, inv_recursive_ $_->inv } @_
		1701	}
		1702
		1703	sub inv_recursive {
		1704	inv_recursive_ inv $_[0]
		1705	}
		1706
		1707	package cf;
		1708
		1709	=back
1425		1710
1426	=head3 cf::object::player	1711	=head3 cf::object::player
1427		1712
1428	=over 4	1713	=over 4
1429		1714
…		…
1469		1754
1470	=item $player_object->enter_link	1755	=item $player_object->enter_link
1471		1756
1472	Freezes the player and moves him/her to a special map (C<{link}>).	1757	Freezes the player and moves him/her to a special map (C<{link}>).
1473		1758
1474	The player should be reaosnably safe there for short amounts of time. You	1759	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.	1760	I<MUST> call C<leave_link> as soon as possible, though.
1476		1761
		1762	Will never block.
		1763
1477	=item $player_object->leave_link ($map, $x, $y)	1764	=item $player_object->leave_link ($map, $x, $y)
1478		1765
1479	Moves the player out of the specila link map onto the given map. If the	1766	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	1767	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,	1768	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	1769	fails, to the emergency map position.
1483		1770
1484	Might block.	1771	Might block.
1485		1772
1486	=cut	1773	=cut
		1774
		1775	sub link_map {
		1776	unless ($LINK_MAP) {
		1777	$LINK_MAP = cf::map::find "{link}"
		1778	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1779	$LINK_MAP->load;
		1780	}
		1781
		1782	$LINK_MAP
		1783	}
1487		1784
1488	sub cf::object::player::enter_link {	1785	sub cf::object::player::enter_link {
1489	my ($self) = @_;	1786	my ($self) = @_;
1490		1787
1491	$self->deactivate_recursive;	1788	$self->deactivate_recursive;
1492		1789
1493	return if $self->map == $LINK_MAP;	1790	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		1791
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	1793	if $self->map;
1497		1794
1498	$self->enter_map ($LINK_MAP, 20, 20);	1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	1796	}
1500		1797
1501	sub cf::object::player::leave_link {	1798	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	1799	my ($self, $map, $x, $y) = @_;
1503		1800
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	1818	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	1819	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	1820	if $x <=0 && $y <= 0;
1524		1821
1525	$map->load;	1822	$map->load;
		1823	$map->load_diag;
1526		1824
		1825	return unless $self->contr->active;
1527	$self->activate_recursive;	1826	$self->activate_recursive;
1528	$self->enter_map ($map, $x, $y);	1827	$self->enter_map ($map, $x, $y);
1529	}	1828	}
1530		1829
1531	cf::player->attach (	1830	cf::player->attach (
…		…
1543	my ($pl) = @_;	1842	my ($pl) = @_;
1544		1843
1545	# try to abort aborted map switching on player login :)	1844	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes	1845	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {	1846	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;	1847	$pl->ob->enter_link;
1550	(Coro::async_pool {	1848	(async {
1551	# we need this sleep as the login has a concurrent enter_exit running	1849	# 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	1850	# and this sleep increases chances of the player not ending up in scorn
		1851	$pl->ob->reply (undef,
		1852	"There was an internal problem at your last logout, "
		1853	. "the server will try to bring you to your intended destination in a second.",
		1854	cf::NDI_RED);
1553	Coro::Timer::sleep 1;	1855	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;	1856	$pl->ob->leave_link;
1555	})->prio (2);	1857	})->prio (2);
1556	}	1858	}
1557	},	1859	},
…		…
1564	sub cf::object::player::goto {	1866	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	1867	my ($self, $path, $x, $y) = @_;
1566		1868
1567	$self->enter_link;	1869	$self->enter_link;
1568		1870
1569	(Coro::async_pool {	1871	(async {
1570	$path = new cf::path $path;	1872	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	1873	my $map = cf::map::find $path;
1573	$map = $map->customise_for ($self) if $map;	1874	$map = $map->customise_for ($self) if $map;
1574		1875	$map
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	1876	} or
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1579		1878
1580	$self->leave_link ($map, $x, $y);	1879	$self->leave_link ($map, $x, $y);
1581	})->prio (1);	1880	})->prio (1);
1582	}	1881	}
1583		1882
…		…
1587		1886
1588	sub parse_random_map_params {	1887	sub parse_random_map_params {
1589	my ($spec) = @_;	1888	my ($spec) = @_;
1590		1889
1591	my $rmp = { # defaults	1890	my $rmp = { # defaults
1592	xsize => 10,	1891	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	1892	ysize => (cf::rndm 15, 40),
		1893	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1894	#layout => string,
1594	};	1895	};
1595		1896
1596	for (split /\n/, $spec) {	1897	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	1898	my ($k, $v) = split /\s+/, $_, 2;
1598		1899
…		…
1602	$rmp	1903	$rmp
1603	}	1904	}
1604		1905
1605	sub prepare_random_map {	1906	sub prepare_random_map {
1606	my ($exit) = @_;	1907	my ($exit) = @_;
		1908
		1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		1910
1608	# all this does is basically replace the /! path by	1911	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	1912	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	1913	# that depends on the exit object
1611		1914
1612	my $rmp = parse_random_map_params $exit->msg;	1915	my $rmp = parse_random_map_params $exit->msg;
1613		1916
1614	if ($exit->map) {	1917	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	1918	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	1919	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	1920	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	1921	$rmp->{origin_y} = $exit->y;
1619	}	1922	}
1620		1923
1621	$rmp->{random_seed} ||= $exit->random_seed;	1924	$rmp->{random_seed} ||= $exit->random_seed;
1622		1925
1623	my $data = cf::to_json $rmp;	1926	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	1927	my $md5 = Digest::MD5::md5_hex $data;
		1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1625		1929
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	1931	aio_write $fh, 0, (length $data), $data, 0;
		1932	undef $fh;
		1933	aio_rename "$meta~", $meta;
1628		1934
1629	$exit->slaying ("?random/$md5");	1935	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	1936	$exit->msg (undef);
1631	}	1937	}
1632	}	1938	}
…		…
1634	sub cf::object::player::enter_exit {	1940	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	1941	my ($self, $exit) = @_;
1636		1942
1637	return unless $self->type == cf::PLAYER;	1943	return unless $self->type == cf::PLAYER;
1638		1944
		1945	if ($exit->slaying eq "/!") {
		1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1947	cf::sync_job { prepare_random_map $exit };
		1948	}
		1949
		1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1951	my $hp = $exit->stats->hp;
		1952	my $sp = $exit->stats->sp;
		1953
1639	$self->enter_link;	1954	$self->enter_link;
1640		1955
1641	(Coro::async_pool {	1956	(async {
1642	$self->deactivate_recursive; # just to be sure	1957	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	1958	unless (eval {
1644	prepare_random_map $exit	1959	$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		1960
1650	1;	1961	1;
1651	}) {	1962	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	1963	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	1964	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	1965	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	1966	cf::NDI_UNIQUE | cf::NDI_RED);
1656		1967
1657	warn "ERROR in enter_exit: $@";	1968	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	1969	$self->leave_link;
1659	}	1970	}
…		…
1714	# get handled first	2025	# get handled first
1715	my $queue = delete $ns->{query_queue}	2026	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2027	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2028
1718	(shift @$queue)->[1]->($msg);	2029	(shift @$queue)->[1]->($msg);
		2030	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2031
1720	push @{ $ns->{query_queue} }, @$queue;	2032	push @{ $ns->{query_queue} }, @$queue;
1721		2033
1722	if (@{ $ns->{query_queue} } == @$queue) {	2034	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2035	if (@$queue) {
…		…
1727	}	2039	}
1728	}	2040	}
1729	},	2041	},
1730	);	2042	);
1731		2043
1732	=item $client->coro (\&cb)	2044	=item $client->async (\&cb)
1733		2045
1734	Create a new coroutine, running the specified callback. The coroutine will	2046	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2047	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2048	or loss of connection).
1737		2049
1738	=cut	2050	=cut
1739		2051
1740	sub cf::client::coro {	2052	sub cf::client::async {
1741	my ($self, $cb) = @_;	2053	my ($self, $cb) = @_;
1742		2054
1743	my $coro = &Coro::async_pool ($cb);	2055	my $coro = &Coro::async ($cb);
1744		2056
1745	$coro->on_destroy (sub {	2057	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2058	delete $self->{_coro}{$coro+0};
1747	});	2059	});
1748		2060
…		…
1884	The parameter C<$family> should best start with the name of the extension	2196	The parameter C<$family> should best start with the name of the extension
1885	using it, it should be unique.	2197	using it, it should be unique.
1886		2198
1887	=over 4	2199	=over 4
1888		2200
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	2201	=item $value = cf::db_get $family => $key
1896		2202
1897	Returns a single value from the database	2203	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		2204
1904	=item cf::db_put $family => $key => $value	2205	=item cf::db_put $family => $key => $value
1905		2206
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you	2207	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		2208
1917	=cut	2209	=cut
1918		2210
1919	our $DB;	2211	our $DB;
1920		2212
1921	{	2213	sub db_init {
		2214	unless ($DB) {
		2215	$DB = BDB::db_create $DB_ENV;
		2216
		2217	cf::sync_job {
		2218	eval {
		2219	$DB->set_flags (BDB::CHKSUM);
		2220
		2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2223	cf::cleanup "db_open(db): $!" if $!;
		2224	};
		2225	cf::cleanup "db_open(db): $@" if $@;
		2226	};
		2227
1922	my $path = cf::localdir . "/database.pst";	2228	my $path = cf::localdir . "/database.pst";
		2229	if (stat $path) {
		2230	cf::sync_job {
		2231	my $pst = Storable::retrieve $path;
1923		2232
1924	sub db_load() {	2233	cf::db_put (board => data => $pst->{board});
1925	$DB = stat $path ? Storable::retrieve $path : { };	2234	cf::db_put (guildrules => data => $pst->{guildrules});
1926	}	2235	cf::db_put (rent => balance => $pst->{rent}{balance});
		2236	BDB::db_env_txn_checkpoint $DB_ENV;
1927		2237
1928	my $pid;	2238	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	}	2239	};
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	},	2240	}
1976	);	2241	}
		2242	}
		2243
		2244	sub db_get($$) {
		2245	my $key = "$_[0]/$_[1]";
		2246
		2247	cf::sync_job {
		2248	BDB::db_get $DB, undef, $key, my $data;
		2249
		2250	$! ? ()
		2251	: Compress::LZF::sthaw $data
		2252	}
		2253	}
		2254
		2255	sub db_put($$$) {
		2256	BDB::dbreq_pri 4;
		2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1977	}	2258	}
1978		2259
1979	#############################################################################	2260	#############################################################################
1980	# the server's main()	2261	# the server's init and main functions
		2262
		2263	sub load_resources {
		2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2265	or die "unable to load regions file\n";#d#
		2266	}
1981		2267
1982	sub cfg_load {	2268	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2269	open my $fh, "<:utf8", cf::confdir . "/config"
1984	or return;	2270	or return;
1985		2271
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2277	$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};	2278	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2279
1994	if (exists $CFG{mlockall}) {	2280	if (exists $CFG{mlockall}) {
1995	eval {	2281	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2282	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2283	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2284	};
1999	warn $@ if $@;	2285	warn $@ if $@;
2000	}	2286	}
		2287	}
		2288
		2289	sub init {
		2290	load_resources;
2001	}	2291	}
2002		2292
2003	sub main {	2293	sub main {
2004	# we must not ever block the main coroutine	2294	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2295	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2296	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2297	(async {
		2298	Event::one_event;
		2299	})->prio (Coro::PRIO_MAX);
2008	};	2300	};
2009		2301
2010	cfg_load;	2302	cfg_load;
2011	db_load;	2303	db_init;
2012	load_extensions;	2304	load_extensions;
		2305
		2306	$TICK_WATCHER->start;
2013	Event::loop;	2307	Event::loop;
2014	}	2308	}
2015		2309
2016	#############################################################################	2310	#############################################################################
2017	# initialisation	2311	# initialisation and cleanup
		2312
		2313	# install some emergency cleanup handlers
		2314	BEGIN {
		2315	for my $signal (qw(INT HUP TERM)) {
		2316	Event->signal (
		2317	reentrant => 0,
		2318	data => WF_AUTOCANCEL,
		2319	signal => $signal,
		2320	prio => 0,
		2321	cb => sub {
		2322	cf::cleanup "SIG$signal";
		2323	},
		2324	);
		2325	}
		2326	}
		2327
		2328	sub emergency_save() {
		2329	my $freeze_guard = cf::freeze_mainloop;
		2330
		2331	warn "enter emergency perl save\n";
		2332
		2333	cf::sync_job {
		2334	# use a peculiar iteration method to avoid tripping on perl
		2335	# refcount bugs in for. also avoids problems with players
		2336	# and maps saved/destroyed asynchronously.
		2337	warn "begin emergency player save\n";
		2338	for my $login (keys %cf::PLAYER) {
		2339	my $pl = $cf::PLAYER{$login} or next;
		2340	$pl->valid or next;
		2341	$pl->save;
		2342	}
		2343	warn "end emergency player save\n";
		2344
		2345	warn "begin emergency map save\n";
		2346	for my $path (keys %cf::MAP) {
		2347	my $map = $cf::MAP{$path} or next;
		2348	$map->valid or next;
		2349	$map->save;
		2350	}
		2351	warn "end emergency map save\n";
		2352
		2353	warn "begin emergency database checkpoint\n";
		2354	BDB::db_env_txn_checkpoint $DB_ENV;
		2355	warn "end emergency database checkpoint\n";
		2356	};
		2357
		2358	warn "leave emergency perl save\n";
		2359	}
		2360
		2361	sub post_cleanup {
		2362	my ($make_core) = @_;
		2363
		2364	warn Carp::longmess "post_cleanup backtrace"
		2365	if $make_core;
		2366	}
2018		2367
2019	sub reload() {	2368	sub reload() {
2020	# can/must only be called in main	2369	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2370	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2371	warn "can only reload from main coroutine";
2023	return;	2372	return;
2024	}	2373	}
2025		2374
2026	warn "reloading...";	2375	warn "reloading...";
2027		2376
2028	my $guard = freeze_mainloop;	2377	warn "cancelling server ticker";
		2378	$TICK_WATCHER->cancel;
		2379
2029	cf::emergency_save;	2380	cf::emergency_save;
2030		2381
2031	eval {	2382	eval {
2032	# if anything goes wrong in here, we should simply crash as we already saved	2383	# if anything goes wrong in here, we should simply crash as we already saved
2033		2384
2034	# cancel all watchers	2385	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2386	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2387	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2388	}
2038		2389
		2390	warn "syncing database to disk";
		2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		2392
		2393	warn "flushing outstanding aio requests";
		2394	for (;;) {
		2395	BDB::flush;
		2396	IO::AIO::flush;
		2397	Coro::cede;
		2398	last unless IO::AIO::nreqs || BDB::nreqs;
		2399	warn "iterate...";
		2400	}
		2401
2039	# cancel all extension coros	2402	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2403	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2404	%EXT_CORO = ();
2042		2405
2043	# unload all extensions	2406	warn "removing commands";
2044	for (@exts) {	2407	%COMMAND = ();
		2408
		2409	warn "removing ext commands";
		2410	%EXTCMD = ();
		2411
		2412	warn "unloading/nuking all extensions";
		2413	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2414	warn "... unloading $pkg";
2046	unload_extension $_;	2415
		2416	if (my $cb = $pkg->can ("unload")) {
		2417	eval {
		2418	$cb->($pkg);
		2419	1
		2420	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2421	}
2048		2422
		2423	warn "... nuking $pkg";
		2424	Symbol::delete_package $pkg;
		2425	}
		2426
2049	# unload all modules loaded from $LIBDIR	2427	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2428	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2430
2053	warn "removing <$k>";	2431	warn "... unloading $k";
2054	delete $INC{$k};	2432	delete $INC{$k};
2055		2433
2056	$k =~ s/\.pm$//;	2434	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	2435	$k =~ s/\//::/g;
2058		2436
…		…
2061	}	2439	}
2062		2440
2063	Symbol::delete_package $k;	2441	Symbol::delete_package $k;
2064	}	2442	}
2065		2443
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	2444	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	2445	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		2447
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	2448	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	2449	delete $INC{"cf.pm"};
2079		2450
2080	# don't, removes xs symbols, too,	2451	# don't, removes xs symbols, too,
2081	# and global variables created in xs	2452	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	2453	#Symbol::delete_package __PACKAGE__;
2083		2454
2084	# reload cf.pm	2455	warn "unload completed, starting to reload now";
		2456
2085	warn "reloading cf.pm";	2457	warn "reloading cf.pm";
2086	require cf;	2458	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		2460
2089	# load config and database again	2461	warn "loading config and database again";
2090	cf::cfg_load;	2462	cf::cfg_load;
2091	cf::db_load;
2092		2463
2093	# load extensions
2094	warn "load extensions";	2464	warn "loading extensions";
2095	cf::load_extensions;	2465	cf::load_extensions;
2096		2466
2097	# reattach attachments to objects	2467	warn "reattaching attachments to objects/players";
2098	warn "reattach";
2099	_global_reattach;	2468	_global_reattach;
		2469	warn "reattaching attachments to maps";
		2470	reattach $_ for values %MAP;
		2471
		2472	warn "loading reloadable resources";
		2473	load_resources;
		2474
		2475	warn "restarting server ticker";
		2476
		2477	$TICK_WATCHER->start;
2100	};	2478	};
2101		2479
2102	if ($@) {	2480	if ($@) {
2103	warn $@;	2481	warn $@;
2104	warn "error while reloading, exiting.";	2482	warn "error while reloading, exiting.";
2105	exit 1;	2483	exit 1;
2106	}	2484	}
2107		2485
2108	warn "reloaded successfully";	2486	warn "reloaded";
2109	};	2487	};
2110		2488
2111	#############################################################################	2489	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} = $LINK_MAP;
2152	}
2153
2154	register "<global>", __PACKAGE__;
2155		2490
2156	register_command "reload" => sub {	2491	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	2492	my ($who, $arg) = @_;
2158		2493
2159	if ($who->flag (FLAG_WIZ)) {	2494	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");	2495	$who->message ("reloading server.");
		2496
		2497	# doing reload synchronously and two reloads happen back-to-back,
		2498	# coro crashes during coro_state_free->destroy here.
		2499
		2500	$RELOAD_WATCHER ||= Event->timer (
		2501	reentrant => 0,
		2502	after => 0,
		2503	data => WF_AUTOCANCEL,
		2504	cb => sub {
2161	reload;	2505	reload;
2162	$who->message ("end of reload.");	2506	undef $RELOAD_WATCHER;
		2507	},
		2508	);
2163	}	2509	}
2164	};	2510	};
2165		2511
2166	unshift @INC, $LIBDIR;	2512	unshift @INC, $LIBDIR;
		2513
		2514	my $bug_warning = 0;
2167		2515
2168	$TICK_WATCHER = Event->timer (	2516	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	2517	reentrant => 0,
		2518	parked => 1,
2170	prio => 0,	2519	prio => 0,
2171	at => $NEXT_TICK || $TICK,	2520	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	2521	data => WF_AUTOCANCEL,
2173	cb => sub {	2522	cb => sub {
		2523	if ($Coro::current != $Coro::main) {
		2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2525	unless ++$bug_warning > 10;
		2526	return;
		2527	}
		2528
		2529	$NOW = Event::time;
		2530
2174	cf::server_tick; # one server iteration	2531	cf::server_tick; # one server iteration
2175	$RUNTIME += $TICK;	2532	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	2533	$NEXT_TICK += $TICK;
		2534
		2535	$WAIT_FOR_TICK->broadcast;
		2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2537
		2538	Event::sweep;
		2539	Coro::cede_notself;
		2540
		2541	# my $AFTER = Event::time;
		2542	# warn $AFTER - $NOW;#d#
2177		2543
2178	# if we are delayed by four ticks or more, skip them all	2544	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2180		2546
2181	$TICK_WATCHER->at ($NEXT_TICK);	2547	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	2548	$TICK_WATCHER->start;
2183	},	2549	},
2184	);	2550	);
2185		2551
		2552	{
		2553	BDB::max_poll_time $TICK * 0.1;
		2554	$BDB_POLL_WATCHER = Event->io (
		2555	reentrant => 0,
		2556	fd => BDB::poll_fileno,
		2557	poll => 'r',
		2558	prio => 0,
		2559	data => WF_AUTOCANCEL,
		2560	cb => \&BDB::poll_cb,
		2561	);
		2562	BDB::min_parallel 8;
		2563
		2564	BDB::set_sync_prepare {
		2565	my $status;
		2566	my $current = $Coro::current;
		2567	(
		2568	sub {
		2569	$status = $!;
		2570	$current->ready; undef $current;
		2571	},
		2572	sub {
		2573	Coro::schedule while defined $current;
		2574	$! = $status;
		2575	},
		2576	)
		2577	};
		2578
		2579	unless ($DB_ENV) {
		2580	$DB_ENV = BDB::db_env_create;
		2581
		2582	cf::sync_job {
		2583	eval {
		2584	BDB::db_env_open
		2585	$DB_ENV,
		2586	$BDB_ENV_DIR,
		2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2589	0666;
		2590
		2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2592
		2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2594	$DB_ENV->set_lk_detect;
		2595	};
		2596
		2597	cf::cleanup "db_env_open(db): $@" if $@;
		2598	};
		2599	}
		2600	}
		2601
		2602	{
		2603	IO::AIO::min_parallel 8;
		2604
		2605	undef $Coro::AIO::WATCHER;
2186	IO::AIO::max_poll_time $TICK * 0.2;	2606	IO::AIO::max_poll_time $TICK * 0.1;
2187		2607	$AIO_POLL_WATCHER = Event->io (
2188	Event->io (	2608	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	2609	fd => IO::AIO::poll_fileno,
2190	poll => 'r',	2610	poll => 'r',
2191	prio => 5,	2611	prio => 6,
2192	data => WF_AUTOCANCEL,	2612	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,	2613	cb => \&IO::AIO::poll_cb,
2194	);	2614	);
		2615	}
2195		2616
2196	Event->timer (	2617	$WRITE_RUNTIME_WATCHER = Event->timer (
		2618	reentrant => 0,
2197	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
2198	after => 0,	2620	after => 1,
2199	interval => 10,	2621	interval => 10,
2200	cb => sub {	2622	prio => 6, # keep it lowest so it acts like a watchdog
2201	(Coro::unblock_sub {	2623	cb => Coro::unblock_sub {
2202	write_runtime	2624	write_runtime
2203	or warn "ERROR: unable to write runtime file: $!";	2625	or warn "ERROR: unable to write runtime file: $!";
2204	})->();
2205	},	2626	},
2206	);	2627	);
2207		2628
2208	END { cf::emergency_save }	2629	END { cf::emergency_save }
2209		2630

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