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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.215 by root, Thu Feb 15 03:19:02 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
221	# wake up all waiters, to be on the safe side	268	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	269	$_->ready for @{ delete $LOCK{$key} };
223	}	270	}
224	}	271	}
225		272
226	=item cf::async { BLOCK }
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {	273	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
244		275
245	my $guard = Coro::guard { $TICK_WATCHER->start };	276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
246	$TICK_WATCHER->stop;	279	$TICK_WATCHER->stop;
247	$guard	280	$guard
248	}	281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
249		292
250	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
251		294
252	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
272	my $freeze_guard = freeze_mainloop;	315	my $freeze_guard = freeze_mainloop;
273		316
274	my $busy = 1;	317	my $busy = 1;
275	my @res;	318	my @res;
276		319
277	(Coro::async {	320	(async {
278	@res = eval { $job->() };	321	@res = eval { $job->() };
279	warn $@ if $@;	322	warn $@ if $@;
280	undef $busy;	323	undef $busy;
281	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
282		325
283	while ($busy) {	326	while ($busy) {
284	Coro::cede_notself;	327	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	328	}
287		329
288	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
289	} else {	331	} else {
290	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
291		333
292	$job->()	334	$job->()
293	}	335	}
294	}	336	}
295		337
296	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
297		339
298	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
300		342
301	=cut	343	=cut
302		344
303	sub coro(&) {	345	sub async_ext(&) {
304	my $cb = shift;	346	my $cb = shift;
305		347
306	my $coro = &cf::async ($cb);	348	my $coro = &Coro::async ($cb);
307		349
308	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
310	});	352	});
311	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
…		…
317	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
318		360
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320	or return;	362	or return;
321		363
		364	my $value = $cf::RUNTIME + 90 + 10;
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;	369	and return;
325		370
		371	# always fsync - this file is important
326	aio_fsync $fh	372	aio_fsync $fh
327	and return;	373	and return;
328		374
329	close $fh	375	close $fh
330	or return;	376	or return;
…		…
336	}	382	}
337		383
338	=back	384	=back
339		385
340	=cut	386	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		387
462	#############################################################################	388	#############################################################################
463		389
464	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
465		391
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	518	our @CB_MAP = ();
593		519
594	my %attachment;	520	my %attachment;
595		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
596	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
598		530
599	use sort 'stable';	531	use sort 'stable';
600		532
…		…
771	# object support	703	# object support
772		704
773	sub reattach {	705	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		710
777	my $registry = $obj->registry;	711	my $registry = $obj->registry;
778		712
779	@$registry = ();	713	@$registry = ();
780		714
…		…
827	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
828		762
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	767	close $fh;
834		768
835	if (@$objs) {	769	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	775	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
843	}	777	}
844	} else {	778	} else {
845	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
851	}	785	}
852	} else {	786	} else {
853	aio_unlink $filename;	787	aio_unlink $filename;
854	aio_unlink "$filename.pst";	788	aio_unlink "$filename.pst";
855	}	789	}
		790
		791	#d##TODO# nuke non .map-files if exist
		792	if ($filename =~ s/\.map$//) {
		793	aio_unlink $filename;
		794	aio_unlink "$filename.pst";
		795	}
856	}	796	}
857	}	797	}
858		798
859	sub object_freezer_as_string {	799	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	800	my ($rdata, $objs) = @_;
…		…
866		806
867	sub object_thawer_load {	807	sub object_thawer_load {
868	my ($filename) = @_;	808	my ($filename) = @_;
869		809
870	my ($data, $av);	810	my ($data, $av);
		811
		812	#d#TODO remove .map if file does not exist
		813	aio_stat $filename and $filename =~ s/\.map$//;
871		814
872	(aio_load $filename, $data) >= 0	815	(aio_load $filename, $data) >= 0
873	or return;	816	or return;
874		817
875	unless (aio_stat "$filename.pst") {	818	unless (aio_stat "$filename.pst") {
…		…
912	=cut	855	=cut
913		856
914	sub register_extcmd {	857	sub register_extcmd {
915	my ($name, $cb) = @_;	858	my ($name, $cb) = @_;
916		859
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	860	$EXTCMD{$name} = $cb;
921	}	861	}
922		862
923	cf::player->attach (	863	cf::player->attach (
924	on_command => sub {	864	on_command => sub {
925	my ($pl, $name, $params) = @_;	865	my ($pl, $name, $params) = @_;
…		…
938		878
939	my $msg = eval { from_json $buf };	879	my $msg = eval { from_json $buf };
940		880
941	if (ref $msg) {	881	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	882	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	883	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	884	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	885	}
946	}	886	}
947	} else {	887	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	888	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		890
951	cf::override;	891	cf::override;
952	},	892	},
953	);	893	);
954		894
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	895	sub load_extension {
962	my ($path) = @_;	896	my ($path) = @_;
963		897
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	898	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	899	my $base = $1;
966	my $pkg = $1;	900	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	901	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	902	$pkg = "ext::$pkg";
969		903
970	warn "loading '$path' into '$pkg'\n";	904	warn "... loading '$path' into '$pkg'\n";
971		905
972	open my $fh, "<:utf8", $path	906	open my $fh, "<:utf8", $path
973	or die "$path: $!";	907	or die "$path: $!";
974		908
975	my $source =	909	my $source =
976	"package $pkg; use strict; use utf8;\n"	910	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	911	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	912	. (do { local $/; <$fh> })
979	. "\n};\n1";	913	. "\n};\n1";
980		914
981	eval $source	915	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	916	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	917	: "extension disabled.\n";
984		918	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	919	warn $@;
986	$ext_pkg{$base} = $pkg;	920	warn "mandatory extension failed to load, exiting.\n";
987		921	exit 1;
988	# no strict 'refs';	922	}
989	# @{"$pkg\::ISA"} = ext::;	923	die $@;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	924	}
1004		925
1005	# remove commands	926	push @EXTS, $pkg;
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}	927	}
1030		928
1031	sub load_extensions {	929	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	930	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	931	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	935	} or warn "$ext not loaded: $@";
1038	}	936	}
1039	}	937	}
1040		938
1041	#############################################################################	939	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078		940
1079	=head2 CORE EXTENSIONS	941	=head2 CORE EXTENSIONS
1080		942
1081	Functions and methods that extend core crossfire objects.	943	Functions and methods that extend core crossfire objects.
1082		944
		945	=cut
		946
		947	package cf::player;
		948
		949	use Coro::AIO;
		950
1083	=head3 cf::player	951	=head3 cf::player
1084		952
1085	=over 4	953	=over 4
1086		954
1087	=item cf::player::exists $login	955	=item cf::player::find $login
1088		956
1089	Returns true when the given account exists.	957	Returns the given player object, loading it if necessary (might block).
1090		958
1091	=cut	959	=cut
1092		960
1093	sub cf::player::exists($) {	961	sub playerdir($) {
1094	cf::player::find $_[0]	962	cf::localdir
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	963	. "/"
		964	. cf::playerdir
		965	. "/"
		966	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		967	}
		968
		969	sub path($) {
		970	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		971
		972	(playerdir $login) . "/$login.pl"
		973	}
		974
		975	sub find_active($) {
		976	$cf::PLAYER{$_[0]}
		977	and $cf::PLAYER{$_[0]}->active
		978	and $cf::PLAYER{$_[0]}
		979	}
		980
		981	sub exists($) {
		982	my ($login) = @_;
		983
		984	$cf::PLAYER{$login}
		985	or cf::sync_job { !aio_stat path $login }
		986	}
		987
		988	sub find($) {
		989	return $cf::PLAYER{$_[0]} || do {
		990	my $login = $_[0];
		991
		992	my $guard = cf::lock_acquire "user_find:$login";
		993
		994	$cf::PLAYER{$_[0]} || do {
		995	my $pl = load_pl path $login
		996	or return;
		997	$cf::PLAYER{$login} = $pl
		998	}
		999	}
		1000	}
		1001
		1002	sub save($) {
		1003	my ($pl) = @_;
		1004
		1005	return if $pl->{deny_save};
		1006
		1007	my $path = path $pl;
		1008	my $guard = cf::lock_acquire "user_save:$path";
		1009
		1010	return if $pl->{deny_save};
		1011
		1012	aio_mkdir playerdir $pl, 0770;
		1013	$pl->{last_save} = $cf::RUNTIME;
		1014
		1015	$pl->save_pl ($path);
		1016	Coro::cede;
		1017	}
		1018
		1019	sub new($) {
		1020	my ($login) = @_;
		1021
		1022	my $self = create;
		1023
		1024	$self->ob->name ($login);
		1025	$self->{deny_save} = 1;
		1026
		1027	$cf::PLAYER{$login} = $self;
		1028
		1029	$self
		1030	}
		1031
		1032	=item $pl->quit_character
		1033
		1034	Nukes the player without looking back. If logged in, the connection will
		1035	be destroyed. May block for a long time.
		1036
		1037	=cut
		1038
		1039	sub quit_character {
		1040	my ($pl) = @_;
		1041
		1042	$pl->{deny_save} = 1;
		1043	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1044
		1045	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1046	$pl->deactivate;
		1047	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1048	$pl->ns->destroy if $pl->ns;
		1049
		1050	my $path = playerdir $pl;
		1051	my $temp = "$path~$cf::RUNTIME~deleting~";
		1052	aio_rename $path, $temp;
		1053	delete $cf::PLAYER{$pl->ob->name};
		1054	$pl->destroy;
		1055	IO::AIO::aio_rmtree $temp;
		1056	}
		1057
		1058	=item cf::player::list_logins
		1059
		1060	Returns am arrayref of all valid playernames in the system, can take a
		1061	while and may block, so not sync_job-capable, ever.
		1062
		1063	=cut
		1064
		1065	sub list_logins {
		1066	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1067	or return [];
		1068
		1069	my @logins;
		1070
		1071	for my $login (@$dirs) {
		1072	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1073	aio_read $fh, 0, 512, my $buf, 0 or next;
		1074	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1075
		1076	utf8::decode $login;
		1077	push @logins, $login;
		1078	}
		1079
		1080	\@logins
		1081	}
		1082
		1083	=item $player->maps
		1084
		1085	Returns an arrayref of map paths that are private for this
		1086	player. May block.
		1087
		1088	=cut
		1089
		1090	sub maps($) {
		1091	my ($pl) = @_;
		1092
		1093	$pl = ref $pl ? $pl->ob->name : $pl;
		1094
		1095	my $files = aio_readdir playerdir $pl
		1096	or return;
		1097
		1098	my @paths;
		1099
		1100	for (@$files) {
		1101	utf8::decode $_;
		1102	next if /\.(?:pl|pst)$/;
		1103	next unless /^$PATH_SEP/o;
		1104
		1105	push @paths, cf::map::normalise "~$pl/$_";
		1106	}
		1107
		1108	\@paths
1096	}	1109	}
1097		1110
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1111	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099		1112
1100	Sends an ext reply to the player.	1113	Sends an ext reply to the player.
1101		1114
1102	=cut	1115	=cut
1103		1116
1104	sub cf::player::ext_reply($$$%) {	1117	sub ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;	1118	my ($self, $id, %msg) = @_;
1106		1119
1107	$msg{msgid} = $id;	1120	$msg{msgid} = $id;
1108		1121
1109	$self->send ("ext " . to_json \%msg);	1122	$self->send ("ext " . cf::to_json \%msg);
1110	}	1123	}
		1124
		1125	package cf;
1111		1126
1112	=back	1127	=back
1113		1128
1114		1129
1115	=head3 cf::map	1130	=head3 cf::map
…		…
1121	package cf::map;	1136	package cf::map;
1122		1137
1123	use Fcntl;	1138	use Fcntl;
1124	use Coro::AIO;	1139	use Coro::AIO;
1125		1140
		1141	use overload
		1142	'""' => \&as_string,
		1143	fallback => 1;
		1144
1126	our $MAX_RESET = 3600;	1145	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1146	our $DEFAULT_RESET = 3000;
1128		1147
1129	sub generate_random_map {	1148	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1149	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1150	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1151	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1152	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1153	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1154	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1155	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1156	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1157	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1158	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1159	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1160	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1161	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1162	(cf::region::find $rmp->{region}), $rmp->{custom}
		1163	)
		1164	}
		1165
		1166	=item cf::map->register ($regex, $prio)
		1167
		1168	Register a handler for the map path matching the given regex at the
		1169	givne priority (higher is better, built-in handlers have priority 0, the
		1170	default).
		1171
		1172	=cut
		1173
		1174	sub register {
		1175	my (undef, $regex, $prio) = @_;
		1176	my $pkg = caller;
		1177
		1178	no strict;
		1179	push @{"$pkg\::ISA"}, __PACKAGE__;
		1180
		1181	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1182	}
		1183
		1184	# also paths starting with '/'
		1185	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1186
		1187	sub thawer_merge {
		1188	my ($self, $merge) = @_;
		1189
		1190	# we have to keep some variables in memory intact
		1191	local $self->{path};
		1192	local $self->{load_path};
		1193	local $self->{deny_save};
		1194	local $self->{deny_reset};
		1195
		1196	$self->SUPER::thawer_merge ($merge);
		1197	}
		1198
		1199	sub normalise {
		1200	my ($path, $base) = @_;
		1201
		1202	$path = "$path"; # make sure its a string
		1203
		1204	$path =~ s/\.map$//;
		1205
		1206	# map plan:
		1207	#
		1208	# /! non-realised random map exit (special hack!)
		1209	# {... are special paths that are not being touched
		1210	# ?xxx/... are special absolute paths
		1211	# ?random/... random maps
		1212	# /... normal maps
		1213	# ~user/... per-player map of a specific user
		1214
		1215	$path =~ s/$PATH_SEP/\//go;
		1216
		1217	# treat it as relative path if it starts with
		1218	# something that looks reasonable
		1219	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1220	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1221
		1222	$base =~ s{[^/]+/?$}{};
		1223	$path = "$base/$path";
		1224	}
		1225
		1226	for ($path) {
		1227	redo if s{//}{/};
		1228	redo if s{/\.?/}{/};
		1229	redo if s{/[^/]+/\.\./}{/};
		1230	}
		1231
		1232	$path
		1233	}
		1234
		1235	sub new_from_path {
		1236	my (undef, $path, $base) = @_;
		1237
		1238	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1239
		1240	$path = normalise $path, $base;
		1241
		1242	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1243	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1244	my $self = bless cf::map::new, $pkg;
		1245	$self->{path} = $path; $self->path ($path);
		1246	$self->init; # pass $1 etc.
		1247	return $self;
		1248	}
		1249	}
		1250
		1251	Carp::carp "unable to resolve path '$path' (base '$base').";
		1252	()
		1253	}
		1254
		1255	sub init {
		1256	my ($self) = @_;
		1257
		1258	$self
		1259	}
		1260
		1261	sub as_string {
		1262	my ($self) = @_;
		1263
		1264	"$self->{path}"
		1265	}
		1266
		1267	# the displayed name, this is a one way mapping
		1268	sub visible_name {
		1269	&as_string
		1270	}
		1271
		1272	# the original (read-only) location
		1273	sub load_path {
		1274	my ($self) = @_;
		1275
		1276	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1277	}
		1278
		1279	# the temporary/swap location
		1280	sub save_path {
		1281	my ($self) = @_;
		1282
		1283	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1284	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1285	}
		1286
		1287	# the unique path, undef == no special unique path
		1288	sub uniq_path {
		1289	my ($self) = @_;
		1290
		1291	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1292	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146	}	1293	}
1147		1294
1148	# and all this just because we cannot iterate over	1295	# and all this just because we cannot iterate over
1149	# all maps in C++...	1296	# all maps in C++...
1150	sub change_all_map_light {	1297	sub change_all_map_light {
…		…
1152		1299
1153	$_->change_map_light ($change)	1300	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1301	for grep $_->outdoor, values %cf::MAP;
1155	}	1302	}
1156		1303
		1304	sub unlink_save {
		1305	my ($self) = @_;
		1306
		1307	utf8::encode (my $save = $self->save_path);
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1309	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1310
		1311	#d#TODO remove .map and also nuke
		1312	$save =~ s/\.map// or return;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1314	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1315	}
		1316
1157	sub try_load_header($) {	1317	sub load_header_from($) {
1158	my ($path) = @_;	1318	my ($self, $path) = @_;
1159		1319
1160	utf8::encode $path;	1320	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1321	#aio_open $path, O_RDONLY, 0
		1322	# or return;
		1323
		1324	$self->_load_header ($path)
1162	or return;	1325	or return;
1163		1326
1164	my $map = cf::map::new	1327	$self->{load_path} = $path;
		1328
		1329	1
		1330	}
		1331
		1332	sub load_header_orig {
		1333	my ($self) = @_;
		1334
		1335	$self->load_header_from ($self->load_path)
		1336	}
		1337
		1338	sub load_header_temp {
		1339	my ($self) = @_;
		1340
		1341	$self->load_header_from ($self->save_path)
		1342	}
		1343
		1344	sub prepare_temp {
		1345	my ($self) = @_;
		1346
		1347	$self->last_access ((delete $self->{last_access})
		1348	|| $cf::RUNTIME); #d#
		1349	# safety
		1350	$self->{instantiate_time} = $cf::RUNTIME
		1351	if $self->{instantiate_time} > $cf::RUNTIME;
		1352	}
		1353
		1354	sub prepare_orig {
		1355	my ($self) = @_;
		1356
		1357	$self->{load_original} = 1;
		1358	$self->{instantiate_time} = $cf::RUNTIME;
		1359	$self->last_access ($cf::RUNTIME);
		1360	$self->instantiate;
		1361	}
		1362
		1363	sub load_header {
		1364	my ($self) = @_;
		1365
		1366	if ($self->load_header_temp) {
		1367	$self->prepare_temp;
		1368	} else {
		1369	$self->load_header_orig
1165	or return;	1370	or return;
		1371	$self->prepare_orig;
		1372	}
1166		1373
1167	# for better error messages only, will be overwritten	1374	1
1168	$map->path ($path);
1169
1170	$map->load_header ($path)
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1375	}
1177		1376
1178	sub find;	1377	sub find;
1179	sub find {	1378	sub find {
1180	my ($path, $origin) = @_;	1379	my ($path, $origin) = @_;
1181		1380
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1381	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1382
1187	cf::lock_wait "map_find:$key";	1383	cf::lock_wait "map_find:$path";
1188		1384
1189	$cf::MAP{$key} || do {	1385	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1386	my $guard = cf::lock_acquire "map_find:$path";
1191		1387	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1388	or return;
1211		1389
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1390	$map->{last_save} = $cf::RUNTIME;
1224		1391
1225	Coro::cede;	1392	$map->load_header
		1393	or return;
1226		1394
1227	if ($map->should_reset) {	1395	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1396	# doing this can freeze the server in a sync job, obviously
		1397	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1398	$map->reset;
1229	undef $guard;	1399	undef $guard;
1230	$map = find $path	1400	return find $path;
1231	or return;
1232	}	1401	}
1233		1402
1234	$cf::MAP{$key} = $map	1403	$cf::MAP{$path} = $map
1235	}	1404	}
1236	}	1405	}
		1406
		1407	sub pre_load { }
		1408	sub post_load { }
1237		1409
1238	sub load {	1410	sub load {
1239	my ($self) = @_;	1411	my ($self) = @_;
1240		1412
		1413	local $self->{deny_reset} = 1; # loading can take a long time
		1414
1241	my $path = $self->{path};	1415	my $path = $self->{path};
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1416	my $guard = cf::lock_acquire "map_load:$path";
1243		1417
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1418	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1419
1246	$self->in_memory (cf::MAP_LOADING);	1420	$self->in_memory (cf::MAP_LOADING);
1247		1421
1248	$self->alloc;	1422	$self->alloc;
		1423
		1424	$self->pre_load;
		1425
1249	$self->load_objects ($self->{load_path}, 1)	1426	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1427	or return;
1251		1428
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1429	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1430	if delete $self->{load_original};
1254		1431
1255	if (my $uniq = $path->uniq_path) {	1432	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1433	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1434	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1435	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1436	$self->_load_objects ($uniq, 0);
1260	}	1437	}
1261	}	1438	}
1262		1439
1263	Coro::cede;	1440	Coro::cede;
1264		1441
1265	# now do the right thing for maps	1442	# now do the right thing for maps
1266	$self->link_multipart_objects;	1443	$self->link_multipart_objects;
1267		1444
1268	if ($self->{path}->is_style_map) {	1445	unless ($self->{deny_activate}) {
1269	$self->{deny_save} = 1;	1446	$self->decay_objects;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;	1447	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;	1448	$self->update_buttons;
		1449	Coro::cede;
1275	$self->set_darkness_map;	1450	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1451	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1452	unless $self->difficulty;
		1453	Coro::cede;
1278	$self->activate;	1454	$self->activate;
1279	}	1455	}
1280		1456
1281	Coro::cede;	1457	$self->post_load;
1282		1458
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1459	$self->in_memory (cf::MAP_IN_MEMORY);
		1460	}
		1461
		1462	sub customise_for {
		1463	my ($self, $ob) = @_;
		1464
		1465	return find "~" . $ob->name . "/" . $self->{path}
		1466	if $self->per_player;
		1467
		1468	$self
		1469	}
		1470
		1471	# find and load all maps in the 3x3 area around a map
		1472	sub load_diag {
		1473	my ($map) = @_;
		1474
		1475	my @diag; # diagonal neighbours
		1476
		1477	for (0 .. 3) {
		1478	my $neigh = $map->tile_path ($_)
		1479	or next;
		1480	$neigh = find $neigh, $map
		1481	or next;
		1482	$neigh->load;
		1483
		1484	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1485	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1486	}
		1487
		1488	for (@diag) {
		1489	my $neigh = find @$_
		1490	or next;
		1491	$neigh->load;
		1492	}
1284	}	1493	}
1285		1494
1286	sub find_sync {	1495	sub find_sync {
1287	my ($path, $origin) = @_;	1496	my ($path, $origin) = @_;
1288		1497
1289	cf::sync_job { cf::map::find $path, $origin }	1498	cf::sync_job { find $path, $origin }
1290	}	1499	}
1291		1500
1292	sub do_load_sync {	1501	sub do_load_sync {
1293	my ($map) = @_;	1502	my ($map) = @_;
1294		1503
1295	cf::sync_job { $map->load };	1504	cf::sync_job { $map->load };
1296	}	1505	}
1297		1506
		1507	our %MAP_PREFETCH;
		1508	our $MAP_PREFETCHER = undef;
		1509
		1510	sub find_async {
		1511	my ($path, $origin) = @_;
		1512
		1513	$path = normalise $path, $origin && $origin->{path};
		1514
		1515	if (my $map = $cf::MAP{$path}) {
		1516	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1517	}
		1518
		1519	undef $MAP_PREFETCH{$path};
		1520	$MAP_PREFETCHER ||= cf::async {
		1521	while (%MAP_PREFETCH) {
		1522	for my $path (keys %MAP_PREFETCH) {
		1523	my $map = find $path
		1524	or next;
		1525	$map->load;
		1526
		1527	delete $MAP_PREFETCH{$path};
		1528	}
		1529	}
		1530	undef $MAP_PREFETCHER;
		1531	};
		1532	$MAP_PREFETCHER->prio (6);
		1533
		1534	()
		1535	}
		1536
1298	sub save {	1537	sub save {
1299	my ($self) = @_;	1538	my ($self) = @_;
1300		1539
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1541
1303	$self->{last_save} = $cf::RUNTIME;	1542	$self->{last_save} = $cf::RUNTIME;
1304		1543
1305	return unless $self->dirty;	1544	return unless $self->dirty;
1306		1545
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1546	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1547	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1548
1310	$self->{load_path} = $save;	1549	$self->{load_path} = $save;
1311		1550
1312	return if $self->{deny_save};	1551	return if $self->{deny_save};
1313		1552
1314	local $self->{last_access} = $self->last_access;#d#	1553	local $self->{last_access} = $self->last_access;#d#
1315		1554
		1555	cf::async {
		1556	$_->contr->save for $self->players;
		1557	};
		1558
1316	if ($uniq) {	1559	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1562	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1563	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1564	}
1322	}	1565	}
1323		1566
1324	sub swap_out {	1567	sub swap_out {
1325	my ($self) = @_;	1568	my ($self) = @_;
…		…
1339		1582
1340	sub reset_at {	1583	sub reset_at {
1341	my ($self) = @_;	1584	my ($self) = @_;
1342		1585
1343	# TODO: safety, remove and allow resettable per-player maps	1586	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};	1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
1345	return 1e99 if $self->{deny_reset};	1588	return 1e99 if $self->{deny_reset};
1346		1589
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1591	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1592
…		…
1354	my ($self) = @_;	1597	my ($self) = @_;
1355		1598
1356	$self->reset_at <= $cf::RUNTIME	1599	$self->reset_at <= $cf::RUNTIME
1357	}	1600	}
1358		1601
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	1602	sub reset {
1381	my ($self) = @_;	1603	my ($self) = @_;
1382		1604
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1605	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1606
1385	return if $self->players;	1607	return if $self->players;
1386	return if $self->{path}{user_rel};#d#	1608	return if $self->isa ("ext::map_per_player");#d#
1387		1609
1388	warn "resetting map ", $self->path;#d#	1610	warn "resetting map ", $self->path;#d#
1389		1611
		1612	$self->in_memory (cf::MAP_SWAPPED);
		1613
		1614	# need to save uniques path
		1615	unless ($self->{deny_save}) {
		1616	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1617
		1618	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1619	if $uniq;
		1620	}
		1621
1390	delete $cf::MAP{$self->path};	1622	delete $cf::MAP{$self->path};
		1623
		1624	$self->clear;
1391		1625
1392	$_->clear_links_to ($self) for values %cf::MAP;	1626	$_->clear_links_to ($self) for values %cf::MAP;
1393		1627
1394	$self->unlink_save;	1628	$self->unlink_save;
1395	$self->destroy;	1629	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	1632	my $nuke_counter = "aaaa";
1399		1633
1400	sub nuke {	1634	sub nuke {
1401	my ($self) = @_;	1635	my ($self) = @_;
1402		1636
		1637	delete $cf::MAP{$self->path};
		1638
		1639	$self->unlink_save;
		1640
		1641	bless $self, "cf::map";
		1642	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	1643	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	1644	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1646
		1647	$cf::MAP{$self->path} = $self;
		1648
1406	$self->reset; # polite request, might not happen	1649	$self->reset; # polite request, might not happen
1407	}	1650	}
1408		1651
1409	sub customise_for {	1652	=item cf::map::unique_maps
1410	my ($map, $ob) = @_;
1411		1653
1412	if ($map->per_player) {	1654	Returns an arrayref of paths of all shared maps that have
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1655	instantiated unique items. May block.
1414	}
1415		1656
1416	$map	1657	=cut
1417	}
1418		1658
1419	sub emergency_save {	1659	sub unique_maps() {
1420	my $freeze_guard = cf::freeze_mainloop;	1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1661	or return;
1421		1662
1422	warn "enter emergency map save\n";	1663	my @paths;
1423		1664
1424	cf::sync_job {	1665	for (@$files) {
1425	warn "begin emergency map save\n";	1666	utf8::decode $_;
1426	$_->save for values %cf::MAP;	1667	next if /\.pst$/;
		1668	next unless /^$PATH_SEP/o;
		1669
		1670	push @paths, cf::map::normalise $_;
1427	};	1671	}
1428		1672
1429	warn "end emergency map save\n";	1673	\@paths
1430	}	1674	}
1431		1675
1432	package cf;	1676	package cf;
1433		1677
1434	=back	1678	=back
1435		1679
		1680	=head3 cf::object
		1681
		1682	=cut
		1683
		1684	package cf::object;
		1685
		1686	=over 4
		1687
		1688	=item $ob->inv_recursive
		1689
		1690	Returns the inventory of the object _and_ their inventories, recursively.
		1691
		1692	=cut
		1693
		1694	sub inv_recursive_;
		1695	sub inv_recursive_ {
		1696	map { $_, inv_recursive_ $_->inv } @_
		1697	}
		1698
		1699	sub inv_recursive {
		1700	inv_recursive_ inv $_[0]
		1701	}
		1702
		1703	package cf;
		1704
		1705	=back
1436		1706
1437	=head3 cf::object::player	1707	=head3 cf::object::player
1438		1708
1439	=over 4	1709	=over 4
1440		1710
…		…
1480		1750
1481	=item $player_object->enter_link	1751	=item $player_object->enter_link
1482		1752
1483	Freezes the player and moves him/her to a special map (C<{link}>).	1753	Freezes the player and moves him/her to a special map (C<{link}>).
1484		1754
1485	The player should be reaosnably safe there for short amounts of time. You	1755	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	1756	I<MUST> call C<leave_link> as soon as possible, though.
1487		1757
		1758	Will never block.
		1759
1488	=item $player_object->leave_link ($map, $x, $y)	1760	=item $player_object->leave_link ($map, $x, $y)
1489		1761
1490	Moves the player out of the specila link map onto the given map. If the	1762	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	1763	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	1764	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	1765	fails, to the emergency map position.
1494		1766
1495	Might block.	1767	Might block.
1496		1768
1497	=cut	1769	=cut
		1770
		1771	sub link_map {
		1772	unless ($LINK_MAP) {
		1773	$LINK_MAP = cf::map::find "{link}"
		1774	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1775	$LINK_MAP->load;
		1776	}
		1777
		1778	$LINK_MAP
		1779	}
1498		1780
1499	sub cf::object::player::enter_link {	1781	sub cf::object::player::enter_link {
1500	my ($self) = @_;	1782	my ($self) = @_;
1501		1783
1502	$self->deactivate_recursive;	1784	$self->deactivate_recursive;
1503		1785
1504	return if $self->map == $LINK_MAP;	1786	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		1787
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	1789	if $self->map;
1508		1790
1509	$self->enter_map ($LINK_MAP, 20, 20);	1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	1792	}
1511		1793
1512	sub cf::object::player::leave_link {	1794	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	1795	my ($self, $map, $x, $y) = @_;
1514		1796
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	1814	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	1815	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	1816	if $x <=0 && $y <= 0;
1535		1817
1536	$map->load;	1818	$map->load;
		1819	$map->load_diag;
1537		1820
		1821	return unless $self->contr->active;
1538	$self->activate_recursive;	1822	$self->activate_recursive;
		1823
		1824	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	1825	$self->enter_map ($map, $x, $y);
1540	}	1826	}
1541		1827
1542	cf::player->attach (	1828	cf::player->attach (
1543	on_logout => sub {	1829	on_logout => sub {
…		…
1555		1841
1556	# try to abort aborted map switching on player login :)	1842	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes	1843	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {	1844	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;	1845	$pl->ob->enter_link;
1560	cf::async {	1846	(async {
		1847	$pl->ob->reply (undef,
		1848	"There was an internal problem at your last logout, "
		1849	. "the server will try to bring you to your intended destination in a second.",
		1850	cf::NDI_RED);
1561	# we need this sleep as the login has a concurrent enter_exit running	1851	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn	1852	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;	1853	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;	1854	$pl->ob->leave_link;
1565	};	1855	})->prio (2);
1566	}	1856	}
1567	},	1857	},
1568	);	1858	);
1569		1859
1570	=item $player_object->goto ($path, $x, $y)	1860	=item $player_object->goto ($path, $x, $y)
…		…
1574	sub cf::object::player::goto {	1864	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	1865	my ($self, $path, $x, $y) = @_;
1576		1866
1577	$self->enter_link;	1867	$self->enter_link;
1578		1868
1579	(cf::async {	1869	(async {
1580	$path = new cf::path $path;	1870	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	1871	my $map = cf::map::find $path;
1583	$map = $map->customise_for ($self) if $map;	1872	$map = $map->customise_for ($self) if $map;
1584		1873	$map
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	1874	} or
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1589		1876
1590	$self->leave_link ($map, $x, $y);	1877	$self->leave_link ($map, $x, $y);
1591	})->prio (1);	1878	})->prio (1);
1592	}	1879	}
1593		1880
…		…
1597		1884
1598	sub parse_random_map_params {	1885	sub parse_random_map_params {
1599	my ($spec) = @_;	1886	my ($spec) = @_;
1600		1887
1601	my $rmp = { # defaults	1888	my $rmp = { # defaults
1602	xsize => 10,	1889	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	1890	ysize => (cf::rndm 15, 40),
		1891	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1892	#layout => string,
1604	};	1893	};
1605		1894
1606	for (split /\n/, $spec) {	1895	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	1896	my ($k, $v) = split /\s+/, $_, 2;
1608		1897
…		…
1612	$rmp	1901	$rmp
1613	}	1902	}
1614		1903
1615	sub prepare_random_map {	1904	sub prepare_random_map {
1616	my ($exit) = @_;	1905	my ($exit) = @_;
		1906
		1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		1908
1618	# all this does is basically replace the /! path by	1909	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	1910	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	1911	# that depends on the exit object
1621		1912
1622	my $rmp = parse_random_map_params $exit->msg;	1913	my $rmp = parse_random_map_params $exit->msg;
1623		1914
1624	if ($exit->map) {	1915	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	1916	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	1917	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	1918	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	1919	$rmp->{origin_y} = $exit->y;
1629	}	1920	}
1630		1921
1631	$rmp->{random_seed} ||= $exit->random_seed;	1922	$rmp->{random_seed} ||= $exit->random_seed;
1632		1923
1633	my $data = cf::to_json $rmp;	1924	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	1925	my $md5 = Digest::MD5::md5_hex $data;
		1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1635		1927
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	1929	aio_write $fh, 0, (length $data), $data, 0;
		1930	undef $fh;
		1931	aio_rename "$meta~", $meta;
1638		1932
1639	$exit->slaying ("?random/$md5");	1933	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	1934	$exit->msg (undef);
1641	}	1935	}
1642	}	1936	}
…		…
1644	sub cf::object::player::enter_exit {	1938	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	1939	my ($self, $exit) = @_;
1646		1940
1647	return unless $self->type == cf::PLAYER;	1941	return unless $self->type == cf::PLAYER;
1648		1942
		1943	if ($exit->slaying eq "/!") {
		1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1945	cf::sync_job { prepare_random_map $exit };
		1946	}
		1947
		1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1949	my $hp = $exit->stats->hp;
		1950	my $sp = $exit->stats->sp;
		1951
1649	$self->enter_link;	1952	$self->enter_link;
1650		1953
1651	(cf::async {	1954	(async {
1652	$self->deactivate_recursive; # just to be sure	1955	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	1956	unless (eval {
1654	prepare_random_map $exit	1957	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		1958
1660	1;	1959	1;
1661	}) {	1960	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	1961	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	1962	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	1963	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	1964	cf::NDI_UNIQUE | cf::NDI_RED);
1666		1965
1667	warn "ERROR in enter_exit: $@";	1966	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	1967	$self->leave_link;
1669	}	1968	}
…		…
1724	# get handled first	2023	# get handled first
1725	my $queue = delete $ns->{query_queue}	2024	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2025	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2026
1728	(shift @$queue)->[1]->($msg);	2027	(shift @$queue)->[1]->($msg);
		2028	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2029
1730	push @{ $ns->{query_queue} }, @$queue;	2030	push @{ $ns->{query_queue} }, @$queue;
1731		2031
1732	if (@{ $ns->{query_queue} } == @$queue) {	2032	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2033	if (@$queue) {
…		…
1737	}	2037	}
1738	}	2038	}
1739	},	2039	},
1740	);	2040	);
1741		2041
1742	=item $client->coro (\&cb)	2042	=item $client->async (\&cb)
1743		2043
1744	Create a new coroutine, running the specified callback. The coroutine will	2044	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2045	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2046	or loss of connection).
1747		2047
1748	=cut	2048	=cut
1749		2049
1750	sub cf::client::coro {	2050	sub cf::client::async {
1751	my ($self, $cb) = @_;	2051	my ($self, $cb) = @_;
1752		2052
1753	my $coro = &cf::async ($cb);	2053	my $coro = &Coro::async ($cb);
1754		2054
1755	$coro->on_destroy (sub {	2055	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2056	delete $self->{_coro}{$coro+0};
1757	});	2057	});
1758		2058
…		…
1894	The parameter C<$family> should best start with the name of the extension	2194	The parameter C<$family> should best start with the name of the extension
1895	using it, it should be unique.	2195	using it, it should be unique.
1896		2196
1897	=over 4	2197	=over 4
1898		2198
1899	=item $hashref = cf::db_get $family
1900
1901	Return a hashref for use by the extension C<$family>, which can be
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904
1905	=item $value = cf::db_get $family => $key	2199	=item $value = cf::db_get $family => $key
1906		2200
1907	Returns a single value from the database	2201	Returns a single value from the database.
1908
1909	=item cf::db_put $family => $hashref
1910
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913		2202
1914	=item cf::db_put $family => $key => $value	2203	=item cf::db_put $family => $key => $value
1915		2204
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you	2205	Stores the given C<$value> in the family.
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926		2206
1927	=cut	2207	=cut
1928		2208
1929	our $DB;	2209	our $DB;
1930		2210
1931	{	2211	sub db_init {
		2212	unless ($DB) {
		2213	$DB = BDB::db_create $DB_ENV;
		2214
		2215	cf::sync_job {
		2216	eval {
		2217	$DB->set_flags (BDB::CHKSUM);
		2218
		2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2221	cf::cleanup "db_open(db): $!" if $!;
		2222	};
		2223	cf::cleanup "db_open(db): $@" if $@;
		2224	};
		2225
1932	my $path = cf::localdir . "/database.pst";	2226	my $path = cf::localdir . "/database.pst";
		2227	if (stat $path) {
		2228	cf::sync_job {
		2229	my $pst = Storable::retrieve $path;
1933		2230
1934	sub db_load() {	2231	cf::db_put (board => data => $pst->{board});
1935	$DB = stat $path ? Storable::retrieve $path : { };	2232	cf::db_put (guildrules => data => $pst->{guildrules});
1936	}	2233	cf::db_put (rent => balance => $pst->{rent}{balance});
		2234	BDB::db_env_txn_checkpoint $DB_ENV;
1937		2235
1938	my $pid;	2236	unlink $path;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}	2237	};
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});
1960
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {
1967	@_ >= 2
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971
1972	sub db_put($$;$) {
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	2238	}
1986	);	2239	}
		2240	}
		2241
		2242	sub db_get($$) {
		2243	my $key = "$_[0]/$_[1]";
		2244
		2245	cf::sync_job {
		2246	BDB::db_get $DB, undef, $key, my $data;
		2247
		2248	$! ? ()
		2249	: Compress::LZF::sthaw $data
		2250	}
		2251	}
		2252
		2253	sub db_put($$$) {
		2254	BDB::dbreq_pri 4;
		2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1987	}	2256	}
1988		2257
1989	#############################################################################	2258	#############################################################################
1990	# the server's main()	2259	# the server's init and main functions
		2260
		2261	sub load_resources {
		2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2263	or die "unable to load regions file\n";#d#
		2264	}
1991		2265
1992	sub cfg_load {	2266	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2267	open my $fh, "<:utf8", cf::confdir . "/config"
1994	or return;	2268	or return;
1995		2269
1996	local $/;	2270	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2271	*CFG = YAML::Syck::Load <$fh>;
1998		2272
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		2274
		2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2277
2001	if (exists $CFG{mlockall}) {	2278	if (exists $CFG{mlockall}) {
2002	eval {	2279	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2280	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2281	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2282	};
2006	warn $@ if $@;	2283	warn $@ if $@;
2007	}	2284	}
		2285	}
		2286
		2287	sub init {
		2288	load_resources;
2008	}	2289	}
2009		2290
2010	sub main {	2291	sub main {
2011	# we must not ever block the main coroutine	2292	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2293	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	2295	(async {
2015	Event::one_event;	2296	Event::one_event;
2016	})->();	2297	})->prio (Coro::PRIO_MAX);
2017	};	2298	};
2018		2299
2019	cfg_load;	2300	cfg_load;
2020	db_load;	2301	db_init;
2021	load_extensions;	2302	load_extensions;
		2303
		2304	$TICK_WATCHER->start;
2022	Event::loop;	2305	Event::loop;
2023	}	2306	}
2024		2307
2025	#############################################################################	2308	#############################################################################
2026	# initialisation	2309	# initialisation and cleanup
		2310
		2311	# install some emergency cleanup handlers
		2312	BEGIN {
		2313	for my $signal (qw(INT HUP TERM)) {
		2314	Event->signal (
		2315	reentrant => 0,
		2316	data => WF_AUTOCANCEL,
		2317	signal => $signal,
		2318	prio => 0,
		2319	cb => sub {
		2320	cf::cleanup "SIG$signal";
		2321	},
		2322	);
		2323	}
		2324	}
		2325
		2326	sub emergency_save() {
		2327	my $freeze_guard = cf::freeze_mainloop;
		2328
		2329	warn "enter emergency perl save\n";
		2330
		2331	cf::sync_job {
		2332	# use a peculiar iteration method to avoid tripping on perl
		2333	# refcount bugs in for. also avoids problems with players
		2334	# and maps saved/destroyed asynchronously.
		2335	warn "begin emergency player save\n";
		2336	for my $login (keys %cf::PLAYER) {
		2337	my $pl = $cf::PLAYER{$login} or next;
		2338	$pl->valid or next;
		2339	$pl->save;
		2340	}
		2341	warn "end emergency player save\n";
		2342
		2343	warn "begin emergency map save\n";
		2344	for my $path (keys %cf::MAP) {
		2345	my $map = $cf::MAP{$path} or next;
		2346	$map->valid or next;
		2347	$map->save;
		2348	}
		2349	warn "end emergency map save\n";
		2350
		2351	warn "begin emergency database checkpoint\n";
		2352	BDB::db_env_txn_checkpoint $DB_ENV;
		2353	warn "end emergency database checkpoint\n";
		2354	};
		2355
		2356	warn "leave emergency perl save\n";
		2357	}
		2358
		2359	sub post_cleanup {
		2360	my ($make_core) = @_;
		2361
		2362	warn Carp::longmess "post_cleanup backtrace"
		2363	if $make_core;
		2364	}
2027		2365
2028	sub reload() {	2366	sub reload() {
2029	# can/must only be called in main	2367	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2368	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2369	warn "can only reload from main coroutine";
2032	return;	2370	return;
2033	}	2371	}
2034		2372
2035	warn "reloading...";	2373	warn "reloading...";
2036		2374
2037	my $guard = freeze_mainloop;	2375	warn "entering sync_job";
		2376
		2377	cf::sync_job {
		2378	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2379	cf::emergency_save;
		2380	cf::write_runtime; # external watchdog should not bark
2039		2381
2040	eval {	2382	warn "syncing database to disk";
		2383	BDB::db_env_txn_checkpoint $DB_ENV;
		2384
2041	# if anything goes wrong in here, we should simply crash as we already saved	2385	# if anything goes wrong in here, we should simply crash as we already saved
2042		2386
2043	# cancel all watchers	2387	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2388	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2389	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2390	}
2047		2391
		2392	warn "flushing outstanding aio requests";
		2393	for (;;) {
		2394	BDB::flush;
		2395	IO::AIO::flush;
		2396	Coro::cede;
		2397	last unless IO::AIO::nreqs || BDB::nreqs;
		2398	warn "iterate...";
		2399	}
		2400
2048	# cancel all extension coros	2401	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2402	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2403	%EXT_CORO = ();
2051		2404
2052	# unload all extensions	2405	warn "removing commands";
2053	for (@exts) {	2406	%COMMAND = ();
		2407
		2408	warn "removing ext commands";
		2409	%EXTCMD = ();
		2410
		2411	warn "unloading/nuking all extensions";
		2412	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2413	warn "... unloading $pkg";
2055	unload_extension $_;	2414
		2415	if (my $cb = $pkg->can ("unload")) {
		2416	eval {
		2417	$cb->($pkg);
		2418	1
		2419	} or warn "$pkg unloaded, but with errors: $@";
2056	}	2420	}
2057		2421
		2422	warn "... nuking $pkg";
		2423	Symbol::delete_package $pkg;
		2424	}
		2425
2058	# unload all modules loaded from $LIBDIR	2426	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2427	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2428	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2429
2062	warn "removing <$k>";	2430	warn "... unloading $k";
2063	delete $INC{$k};	2431	delete $INC{$k};
2064		2432
2065	$k =~ s/\.pm$//;	2433	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2434	$k =~ s/\//::/g;
2067		2435
…		…
2070	}	2438	}
2071		2439
2072	Symbol::delete_package $k;	2440	Symbol::delete_package $k;
2073	}	2441	}
2074		2442
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2443	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2444	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2445	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		2446
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2447	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2448	delete $INC{"cf.pm"};
2088		2449
2089	# don't, removes xs symbols, too,	2450	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2451	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2452	#Symbol::delete_package __PACKAGE__;
2092		2453
2093	# reload cf.pm	2454	warn "unload completed, starting to reload now";
		2455
2094	warn "reloading cf.pm";	2456	warn "reloading cf.pm";
2095	require cf;	2457	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2458	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2459
2098	# load config and database again	2460	warn "loading config and database again";
2099	cf::cfg_load;	2461	cf::cfg_load;
2100	cf::db_load;
2101		2462
2102	# load extensions
2103	warn "load extensions";	2463	warn "loading extensions";
2104	cf::load_extensions;	2464	cf::load_extensions;
2105		2465
2106	# reattach attachments to objects	2466	warn "reattaching attachments to objects/players";
2107	warn "reattach";
2108	_global_reattach;	2467	_global_reattach;
2109	};	2468	warn "reattaching attachments to maps";
		2469	reattach $_ for values %MAP;
2110		2470
2111	if ($@) {	2471	warn "loading reloadable resources";
		2472	load_resources;
		2473
		2474	warn "leaving sync_job";
		2475
		2476	1
		2477	} or do {
2112	warn $@;	2478	warn $@;
2113	warn "error while reloading, exiting.";	2479	warn "error while reloading, exiting.";
2114	exit 1;	2480	exit 1;
2115	}	2481	};
2116		2482
2117	warn "reloaded successfully";	2483	warn "reloaded";
2118	};	2484	};
2119		2485
2120	#############################################################################	2486	our $RELOAD_WATCHER; # used only during reload
2121
2122	unless ($LINK_MAP) {
2123	$LINK_MAP = cf::map::new;
2124
2125	$LINK_MAP->width (41);
2126	$LINK_MAP->height (41);
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}
2162
2163	register "<global>", __PACKAGE__;
2164		2487
2165	register_command "reload" => sub {	2488	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	2489	my ($who, $arg) = @_;
2167		2490
2168	if ($who->flag (FLAG_WIZ)) {	2491	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");	2492	$who->message ("reloading server.");
		2493
		2494	# doing reload synchronously and two reloads happen back-to-back,
		2495	# coro crashes during coro_state_free->destroy here.
		2496
		2497	$RELOAD_WATCHER ||= Event->timer (
		2498	reentrant => 0,
		2499	after => 0,
		2500	data => WF_AUTOCANCEL,
		2501	cb => sub {
2170	reload;	2502	reload;
2171	$who->message ("end of reload.");	2503	undef $RELOAD_WATCHER;
		2504	},
		2505	);
2172	}	2506	}
2173	};	2507	};
2174		2508
2175	unshift @INC, $LIBDIR;	2509	unshift @INC, $LIBDIR;
		2510
		2511	my $bug_warning = 0;
2176		2512
2177	$TICK_WATCHER = Event->timer (	2513	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	2514	reentrant => 0,
		2515	parked => 1,
2179	prio => 0,	2516	prio => 0,
2180	at => $NEXT_TICK || $TICK,	2517	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	2518	data => WF_AUTOCANCEL,
2182	cb => sub {	2519	cb => sub {
		2520	if ($Coro::current != $Coro::main) {
		2521	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2522	unless ++$bug_warning > 10;
		2523	return;
		2524	}
		2525
		2526	$NOW = Event::time;
		2527
2183	cf::server_tick; # one server iteration	2528	cf::server_tick; # one server iteration
2184	$RUNTIME += $TICK;	2529	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	2530	$NEXT_TICK += $TICK;
		2531
		2532	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2533	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2534	Coro::async_pool {
		2535	write_runtime
		2536	or warn "ERROR: unable to write runtime file: $!";
		2537	};
		2538	}
		2539
		2540
		2541	$WAIT_FOR_TICK->broadcast;
		2542	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2543
		2544	# my $AFTER = Event::time;
		2545	# warn $AFTER - $NOW;#d#
2186		2546
2187	# if we are delayed by four ticks or more, skip them all	2547	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2189		2549
2190	$TICK_WATCHER->at ($NEXT_TICK);	2550	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	2551	$TICK_WATCHER->start;
2192	},	2552	},
2193	);	2553	);
2194		2554
		2555	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	2556	BDB::max_poll_time $TICK * 0.1;
2196		2557	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	2558	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	2559	fd => BDB::poll_fileno,
2199	poll => 'r',	2560	poll => 'r',
2200	prio => 5,	2561	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	2562	data => WF_AUTOCANCEL,
2207	after => 0,	2563	cb => \&BDB::poll_cb,
2208	interval => 10,	2564	);
2209	cb => sub {	2565	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	2566
2211	write_runtime	2567	BDB::set_sync_prepare {
2212	or warn "ERROR: unable to write runtime file: $!";	2568	my $status;
		2569	my $current = $Coro::current;
		2570	(
		2571	sub {
		2572	$status = $!;
		2573	$current->ready; undef $current;
		2574	},
		2575	sub {
		2576	Coro::schedule while defined $current;
		2577	$! = $status;
		2578	},
		2579	)
		2580	};
		2581
		2582	unless ($DB_ENV) {
		2583	$DB_ENV = BDB::db_env_create;
		2584
		2585	cf::sync_job {
		2586	eval {
		2587	BDB::db_env_open
		2588	$DB_ENV,
		2589	$BDB_ENV_DIR,
		2590	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2591	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2592	0666;
		2593
		2594	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2595
		2596	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2597	$DB_ENV->set_lk_detect;
		2598	};
		2599
		2600	cf::cleanup "db_env_open(db): $@" if $@;
2213	})->();	2601	};
2214	},	2602	}
2215	);	2603	}
		2604
		2605	{
		2606	IO::AIO::min_parallel 8;
		2607
		2608	undef $Coro::AIO::WATCHER;
		2609	IO::AIO::max_poll_time $TICK * 0.1;
		2610	$AIO_POLL_WATCHER = Event->io (
		2611	reentrant => 0,
		2612	data => WF_AUTOCANCEL,
		2613	fd => IO::AIO::poll_fileno,
		2614	poll => 'r',
		2615	prio => 6,
		2616	cb => \&IO::AIO::poll_cb,
		2617	);
		2618	}
2216		2619
2217	END { cf::emergency_save }	2620	END { cf::emergency_save }
2218		2621
2219	1	2622	1
2220		2623

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