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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.216 by root, Thu Feb 15 14:30:21 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";
…		…
912	=cut	846	=cut
913		847
914	sub register_extcmd {	848	sub register_extcmd {
915	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
916		850
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
921	}	852	}
922		853
923	cf::player->attach (	854	cf::player->attach (
924	on_command => sub {	855	on_command => sub {
925	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
938		869
939	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
940		871
941	if (ref $msg) {	872	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	876	}
946	}	877	}
947	} else {	878	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		881
951	cf::override;	882	cf::override;
952	},	883	},
953	);	884	);
954		885
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	886	sub load_extension {
962	my ($path) = @_;	887	my ($path) = @_;
963		888
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
965	my $base = $1;	890	my $base = $1;
966	my $pkg = $1;	891	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
969		894
970	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
971		896
972	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
973	or die "$path: $!";	898	or die "$path: $!";
974		899
975	my $source =	900	my $source =
976	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
979	. "\n};\n1";	904	. "\n};\n1";
980		905
981	eval $source	906	unless (eval $source) {
982	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
983	: "extension disabled.\n";	908	: "extension disabled.\n";
984		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985	push @exts, $pkg;	910	warn $@;
986	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
987		912	exit 1;
988	# no strict 'refs';	913	}
989	# @{"$pkg\::ISA"} = ext::;	914	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	# }	915	}
1004		916
1005	# remove commands	917	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	}	918	}
1030		919
1031	sub load_extensions {	920	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;	922	next unless -r $ext;
…		…
1037	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
1038	}	927	}
1039	}	928	}
1040		929
1041	#############################################################################	930	#############################################################################
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		931
1079	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1080		933
1081	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1082		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1083	=head3 cf::player	942	=head3 cf::player
1084		943
1085	=over 4	944	=over 4
1086		945
1087	=item cf::player::exists $login	946	=item cf::player::find $login
1088		947
1089	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1090		949
1091	=cut	950	=cut
1092		951
1093	sub cf::player::exists($) {	952	sub playerdir($) {
1094	cf::player::find $_[0]	953	cf::localdir
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
1096	}	1100	}
1097		1101
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099		1103
1100	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1101		1105
1102	=cut	1106	=cut
1103		1107
1104	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1106		1110
1107	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1108		1112
1109	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1110	}	1114	}
		1115
		1116	package cf;
1111		1117
1112	=back	1118	=back
1113		1119
1114		1120
1115	=head3 cf::map	1121	=head3 cf::map
…		…
1121	package cf::map;	1127	package cf::map;
1122		1128
1123	use Fcntl;	1129	use Fcntl;
1124	use Coro::AIO;	1130	use Coro::AIO;
1125		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1126	our $MAX_RESET = 3600;	1136	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1137	our $DEFAULT_RESET = 3000;
1128		1138
1129	sub generate_random_map {	1139	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1142	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146	}	1284	}
1147		1285
1148	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1149	# all maps in C++...	1287	# all maps in C++...
1150	sub change_all_map_light {	1288	sub change_all_map_light {
…		…
1152		1290
1153	$_->change_map_light ($change)	1291	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1292	for grep $_->outdoor, values %cf::MAP;
1155	}	1293	}
1156		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301	}
		1302
1157	sub try_load_header($) {	1303	sub load_header_from($) {
1158	my ($path) = @_;	1304	my ($self, $path) = @_;
1159		1305
1160	utf8::encode $path;	1306	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
1162	or return;	1311	or return;
1163		1312
1164	my $map = cf::map::new	1313	$self->{load_path} = $path;
		1314
		1315	1
		1316	}
		1317
		1318	sub load_header_orig {
		1319	my ($self) = @_;
		1320
		1321	$self->load_header_from ($self->load_path)
		1322	}
		1323
		1324	sub load_header_temp {
		1325	my ($self) = @_;
		1326
		1327	$self->load_header_from ($self->save_path)
		1328	}
		1329
		1330	sub prepare_temp {
		1331	my ($self) = @_;
		1332
		1333	$self->last_access ((delete $self->{last_access})
		1334	|| $cf::RUNTIME); #d#
		1335	# safety
		1336	$self->{instantiate_time} = $cf::RUNTIME
		1337	if $self->{instantiate_time} > $cf::RUNTIME;
		1338	}
		1339
		1340	sub prepare_orig {
		1341	my ($self) = @_;
		1342
		1343	$self->{load_original} = 1;
		1344	$self->{instantiate_time} = $cf::RUNTIME;
		1345	$self->last_access ($cf::RUNTIME);
		1346	$self->instantiate;
		1347	}
		1348
		1349	sub load_header {
		1350	my ($self) = @_;
		1351
		1352	if ($self->load_header_temp) {
		1353	$self->prepare_temp;
		1354	} else {
		1355	$self->load_header_orig
1165	or return;	1356	or return;
		1357	$self->prepare_orig;
		1358	}
1166		1359
1167	# for better error messages only, will be overwritten	1360	1
1168	$map->path ($path);
1169
1170	$map->load_header ($path)
1171	or return;
1172
1173	$map->{load_path} = $path;
1174
1175	$map
1176	}	1361	}
1177		1362
1178	sub find;	1363	sub find;
1179	sub find {	1364	sub find {
1180	my ($path, $origin) = @_;	1365	my ($path, $origin) = @_;
1181		1366
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1367	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1368
1187	cf::lock_wait "map_find:$key";	1369	cf::lock_wait "map_find:$path";
1188		1370
1189	$cf::MAP{$key} || do {	1371	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1372	my $guard = cf::lock_acquire "map_find:$path";
1191		1373	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;	1374	or return;
1211		1375
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;	1376	$map->{last_save} = $cf::RUNTIME;
1224		1377
1225	Coro::cede;	1378	$map->load_header
		1379	or return;
1226		1380
1227	if ($map->should_reset) {	1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1382	# doing this can freeze the server in a sync job, obviously
		1383	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1384	$map->reset;
1229	undef $guard;	1385	undef $guard;
1230	$map = find $path	1386	return find $path;
1231	or return;
1232	}	1387	}
1233		1388
1234	$cf::MAP{$key} = $map	1389	$cf::MAP{$path} = $map
1235	}	1390	}
1236	}	1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
1237		1395
1238	sub load {	1396	sub load {
1239	my ($self) = @_;	1397	my ($self) = @_;
1240		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
1241	my $path = $self->{path};	1401	my $path = $self->{path};
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1402	my $guard = cf::lock_acquire "map_load:$path";
1243		1403
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1404	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1405
1246	$self->in_memory (cf::MAP_LOADING);	1406	$self->in_memory (cf::MAP_LOADING);
1247		1407
1248	$self->alloc;	1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
1249	$self->load_objects ($self->{load_path}, 1)	1412	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1413	or return;
1251		1414
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1416	if delete $self->{load_original};
1254		1417
1255	if (my $uniq = $path->uniq_path) {	1418	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1419	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1420	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1421	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1422	$self->_load_objects ($uniq, 0);
1260	}	1423	}
1261	}	1424	}
1262		1425
1263	Coro::cede;	1426	Coro::cede;
1264		1427
1265	# now do the right thing for maps	1428	# now do the right thing for maps
1266	$self->link_multipart_objects;	1429	$self->link_multipart_objects;
1267		1430
1268	if ($self->{path}->is_style_map) {	1431	unless ($self->{deny_activate}) {
1269	$self->{deny_save} = 1;	1432	$self->decay_objects;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;	1433	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;	1434	$self->update_buttons;
		1435	Coro::cede;
1275	$self->set_darkness_map;	1436	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1437	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1438	unless $self->difficulty;
		1439	Coro::cede;
1278	$self->activate;	1440	$self->activate;
1279	}	1441	}
1280		1442
1281	Coro::cede;	1443	$self->post_load;
1282		1444
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1445	$self->in_memory (cf::MAP_IN_MEMORY);
		1446	}
		1447
		1448	sub customise_for {
		1449	my ($self, $ob) = @_;
		1450
		1451	return find "~" . $ob->name . "/" . $self->{path}
		1452	if $self->per_player;
		1453
		1454	$self
		1455	}
		1456
		1457	# find and load all maps in the 3x3 area around a map
		1458	sub load_diag {
		1459	my ($map) = @_;
		1460
		1461	my @diag; # diagonal neighbours
		1462
		1463	for (0 .. 3) {
		1464	my $neigh = $map->tile_path ($_)
		1465	or next;
		1466	$neigh = find $neigh, $map
		1467	or next;
		1468	$neigh->load;
		1469
		1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1472	}
		1473
		1474	for (@diag) {
		1475	my $neigh = find @$_
		1476	or next;
		1477	$neigh->load;
		1478	}
1284	}	1479	}
1285		1480
1286	sub find_sync {	1481	sub find_sync {
1287	my ($path, $origin) = @_;	1482	my ($path, $origin) = @_;
1288		1483
1289	cf::sync_job { cf::map::find $path, $origin }	1484	cf::sync_job { find $path, $origin }
1290	}	1485	}
1291		1486
1292	sub do_load_sync {	1487	sub do_load_sync {
1293	my ($map) = @_;	1488	my ($map) = @_;
1294		1489
1295	cf::sync_job { $map->load };	1490	cf::sync_job { $map->load };
1296	}	1491	}
1297		1492
		1493	our %MAP_PREFETCH;
		1494	our $MAP_PREFETCHER = undef;
		1495
		1496	sub find_async {
		1497	my ($path, $origin) = @_;
		1498
		1499	$path = normalise $path, $origin && $origin->{path};
		1500
		1501	if (my $map = $cf::MAP{$path}) {
		1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1503	}
		1504
		1505	undef $MAP_PREFETCH{$path};
		1506	$MAP_PREFETCHER ||= cf::async {
		1507	while (%MAP_PREFETCH) {
		1508	for my $path (keys %MAP_PREFETCH) {
		1509	my $map = find $path
		1510	or next;
		1511	$map->load;
		1512
		1513	delete $MAP_PREFETCH{$path};
		1514	}
		1515	}
		1516	undef $MAP_PREFETCHER;
		1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
		1521	}
		1522
1298	sub save {	1523	sub save {
1299	my ($self) = @_;	1524	my ($self) = @_;
1300		1525
		1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1527
1301	$self->{last_save} = $cf::RUNTIME;	1528	$self->{last_save} = $cf::RUNTIME;
1302		1529
1303	return unless $self->dirty;	1530	return unless $self->dirty;
1304		1531
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1532	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1534
1308	$self->{load_path} = $save;	1535	$self->{load_path} = $save;
1309		1536
1310	return if $self->{deny_save};	1537	return if $self->{deny_save};
1311		1538
1312	local $self->{last_access} = $self->last_access;#d#	1539	local $self->{last_access} = $self->last_access;#d#
1313		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
		1544
1314	if ($uniq) {	1545	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1548	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1550	}
1320	}	1551	}
1321		1552
1322	sub swap_out {	1553	sub swap_out {
1323	my ($self) = @_;	1554	my ($self) = @_;
1324		1555
1325	# save first because save cedes	1556	# save first because save cedes
1326	$self->save;	1557	$self->save;
		1558
		1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1560
1328	return if $self->players;	1561	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1563	return if $self->{deny_save};
1331		1564
…		…
1335		1568
1336	sub reset_at {	1569	sub reset_at {
1337	my ($self) = @_;	1570	my ($self) = @_;
1338		1571
1339	# TODO: safety, remove and allow resettable per-player maps	1572	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1574	return 1e99 if $self->{deny_reset};
1342		1575
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1578
…		…
1350	my ($self) = @_;	1583	my ($self) = @_;
1351		1584
1352	$self->reset_at <= $cf::RUNTIME	1585	$self->reset_at <= $cf::RUNTIME
1353	}	1586	}
1354		1587
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1588	sub reset {
1377	my ($self) = @_;	1589	my ($self) = @_;
1378		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
1379	return if $self->players;	1593	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1594	return if $self->isa ("ext::map_per_player");#d#
1381		1595
1382	warn "resetting map ", $self->path;#d#	1596	warn "resetting map ", $self->path;#d#
1383		1597
		1598	$self->in_memory (cf::MAP_SWAPPED);
		1599
		1600	# need to save uniques path
		1601	unless ($self->{deny_save}) {
		1602	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1603
		1604	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1605	if $uniq;
		1606	}
		1607
1384	delete $cf::MAP{$self->path};	1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
1385		1611
1386	$_->clear_links_to ($self) for values %cf::MAP;	1612	$_->clear_links_to ($self) for values %cf::MAP;
1387		1613
1388	$self->unlink_save;	1614	$self->unlink_save;
1389	$self->destroy;	1615	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1618	my $nuke_counter = "aaaa";
1393		1619
1394	sub nuke {	1620	sub nuke {
1395	my ($self) = @_;	1621	my ($self) = @_;
1396		1622
		1623	delete $cf::MAP{$self->path};
		1624
		1625	$self->unlink_save;
		1626
		1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1629	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1630	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1632
		1633	$cf::MAP{$self->path} = $self;
		1634
1400	$self->reset; # polite request, might not happen	1635	$self->reset; # polite request, might not happen
1401	}	1636	}
1402		1637
1403	sub customise_for {	1638	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1639
1406	if ($map->per_player) {	1640	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1641	instantiated unique items. May block.
1408	}
1409		1642
1410	$map	1643	=cut
1411	}
1412		1644
1413	sub emergency_save {	1645	sub unique_maps() {
1414	my $freeze_guard = cf::freeze_mainloop;	1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
1415		1648
1416	warn "enter emergency map save\n";	1649	my @paths;
1417		1650
1418	cf::sync_job {	1651	for (@$files) {
1419	warn "begin emergency map save\n";	1652	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
1421	};	1657	}
1422		1658
1423	warn "end emergency map save\n";	1659	\@paths
1424	}	1660	}
1425		1661
1426	package cf;	1662	package cf;
1427		1663
1428	=back	1664	=back
1429		1665
		1666	=head3 cf::object
		1667
		1668	=cut
		1669
		1670	package cf::object;
		1671
		1672	=over 4
		1673
		1674	=item $ob->inv_recursive
		1675
		1676	Returns the inventory of the object _and_ their inventories, recursively.
		1677
		1678	=cut
		1679
		1680	sub inv_recursive_;
		1681	sub inv_recursive_ {
		1682	map { $_, inv_recursive_ $_->inv } @_
		1683	}
		1684
		1685	sub inv_recursive {
		1686	inv_recursive_ inv $_[0]
		1687	}
		1688
		1689	package cf;
		1690
		1691	=back
1430		1692
1431	=head3 cf::object::player	1693	=head3 cf::object::player
1432		1694
1433	=over 4	1695	=over 4
1434		1696
…		…
1474		1736
1475	=item $player_object->enter_link	1737	=item $player_object->enter_link
1476		1738
1477	Freezes the player and moves him/her to a special map (C<{link}>).	1739	Freezes the player and moves him/her to a special map (C<{link}>).
1478		1740
1479	The player should be reaosnably safe there for short amounts of time. You	1741	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	1742	I<MUST> call C<leave_link> as soon as possible, though.
1481		1743
		1744	Will never block.
		1745
1482	=item $player_object->leave_link ($map, $x, $y)	1746	=item $player_object->leave_link ($map, $x, $y)
1483		1747
1484	Moves the player out of the specila link map onto the given map. If the	1748	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	1749	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	1750	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	1751	fails, to the emergency map position.
1488		1752
1489	Might block.	1753	Might block.
1490		1754
1491	=cut	1755	=cut
		1756
		1757	sub link_map {
		1758	unless ($LINK_MAP) {
		1759	$LINK_MAP = cf::map::find "{link}"
		1760	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1761	$LINK_MAP->load;
		1762	}
		1763
		1764	$LINK_MAP
		1765	}
1492		1766
1493	sub cf::object::player::enter_link {	1767	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1768	my ($self) = @_;
1495		1769
1496	$self->deactivate_recursive;	1770	$self->deactivate_recursive;
1497		1771
1498	return if $self->map == $LINK_MAP;	1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1773
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1775	if $self->map;
1502		1776
1503	$self->enter_map ($LINK_MAP, 20, 20);	1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1778	}
1505		1779
1506	sub cf::object::player::leave_link {	1780	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1781	my ($self, $map, $x, $y) = @_;
1508		1782
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1800	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1801	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1802	if $x <=0 && $y <= 0;
1529		1803
1530	$map->load;	1804	$map->load;
		1805	$map->load_diag;
1531		1806
		1807	return unless $self->contr->active;
1532	$self->activate_recursive;	1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	1811	$self->enter_map ($map, $x, $y);
1534	}	1812	}
1535		1813
1536	cf::player->attach (	1814	cf::player->attach (
1537	on_logout => sub {	1815	on_logout => sub {
…		…
1549		1827
1550	# try to abort aborted map switching on player login :)	1828	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1829	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1830	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1831	$pl->ob->enter_link;
1554	cf::async {	1832	(async {
		1833	$pl->ob->reply (undef,
		1834	"There was an internal problem at your last logout, "
		1835	. "the server will try to bring you to your intended destination in a second.",
		1836	cf::NDI_RED);
1555	# we need this sleep as the login has a concurrent enter_exit running	1837	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn	1838	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;	1839	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1840	$pl->ob->leave_link;
1559	};	1841	})->prio (2);
1560	}	1842	}
1561	},	1843	},
1562	);	1844	);
1563		1845
1564	=item $player_object->goto ($path, $x, $y)	1846	=item $player_object->goto ($path, $x, $y)
…		…
1568	sub cf::object::player::goto {	1850	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1851	my ($self, $path, $x, $y) = @_;
1570		1852
1571	$self->enter_link;	1853	$self->enter_link;
1572		1854
1573	(cf::async {	1855	(async {
1574	$path = new cf::path $path;	1856	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	1857	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1858	$map = $map->customise_for ($self) if $map;
1578		1859	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1860	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1862
1584	$self->leave_link ($map, $x, $y);	1863	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1864	})->prio (1);
1586	}	1865	}
1587		1866
…		…
1591		1870
1592	sub parse_random_map_params {	1871	sub parse_random_map_params {
1593	my ($spec) = @_;	1872	my ($spec) = @_;
1594		1873
1595	my $rmp = { # defaults	1874	my $rmp = { # defaults
1596	xsize => 10,	1875	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
1598	};	1879	};
1599		1880
1600	for (split /\n/, $spec) {	1881	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1882	my ($k, $v) = split /\s+/, $_, 2;
1602		1883
…		…
1606	$rmp	1887	$rmp
1607	}	1888	}
1608		1889
1609	sub prepare_random_map {	1890	sub prepare_random_map {
1610	my ($exit) = @_;	1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1894
1612	# all this does is basically replace the /! path by	1895	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1896	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1897	# that depends on the exit object
1615		1898
1616	my $rmp = parse_random_map_params $exit->msg;	1899	my $rmp = parse_random_map_params $exit->msg;
1617		1900
1618	if ($exit->map) {	1901	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1902	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	1903	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	1904	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	1905	$rmp->{origin_y} = $exit->y;
1623	}	1906	}
1624		1907
1625	$rmp->{random_seed} ||= $exit->random_seed;	1908	$rmp->{random_seed} ||= $exit->random_seed;
1626		1909
1627	my $data = cf::to_json $rmp;	1910	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1913
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1915	aio_write $fh, 0, (length $data), $data, 0;
		1916	undef $fh;
		1917	aio_rename "$meta~", $meta;
1632		1918
1633	$exit->slaying ("?random/$md5");	1919	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1920	$exit->msg (undef);
1635	}	1921	}
1636	}	1922	}
…		…
1638	sub cf::object::player::enter_exit {	1924	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	1925	my ($self, $exit) = @_;
1640		1926
1641	return unless $self->type == cf::PLAYER;	1927	return unless $self->type == cf::PLAYER;
1642		1928
		1929	if ($exit->slaying eq "/!") {
		1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1931	cf::sync_job { prepare_random_map $exit };
		1932	}
		1933
		1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1935	my $hp = $exit->stats->hp;
		1936	my $sp = $exit->stats->sp;
		1937
1643	$self->enter_link;	1938	$self->enter_link;
1644		1939
1645	(cf::async {	1940	(async {
1646	$self->deactivate_recursive; # just to be sure	1941	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1942	unless (eval {
1648	prepare_random_map $exit	1943	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		1944
1654	1;	1945	1;
1655	}) {	1946	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1947	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1948	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1949	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1950	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1951
1661	warn "ERROR in enter_exit: $@";	1952	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1953	$self->leave_link;
1663	}	1954	}
…		…
1718	# get handled first	2009	# get handled first
1719	my $queue = delete $ns->{query_queue}	2010	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2012
1722	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2015
1724	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
1725		2017
1726	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2019	if (@$queue) {
…		…
1731	}	2023	}
1732	}	2024	}
1733	},	2025	},
1734	);	2026	);
1735		2027
1736	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1737		2029
1738	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2031	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2032	or loss of connection).
1741		2033
1742	=cut	2034	=cut
1743		2035
1744	sub cf::client::coro {	2036	sub cf::client::async {
1745	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1746		2038
1747	my $coro = &cf::async ($cb);	2039	my $coro = &Coro::async ($cb);
1748		2040
1749	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1751	});	2043	});
1752		2044
…		…
1888	The parameter C<$family> should best start with the name of the extension	2180	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2181	using it, it should be unique.
1890		2182
1891	=over 4	2183	=over 4
1892		2184
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2185	=item $value = cf::db_get $family => $key
1900		2186
1901	Returns a single value from the database	2187	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2188
1908	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1909		2190
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2192
1921	=cut	2193	=cut
1922		2194
1923	our $DB;	2195	our $DB;
1924		2196
1925	{	2197	sub db_init {
		2198	unless ($DB) {
		2199	$DB = BDB::db_create $DB_ENV;
		2200
		2201	cf::sync_job {
		2202	eval {
		2203	$DB->set_flags (BDB::CHKSUM);
		2204
		2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2207	cf::cleanup "db_open(db): $!" if $!;
		2208	};
		2209	cf::cleanup "db_open(db): $@" if $@;
		2210	};
		2211
1926	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
		2213	if (stat $path) {
		2214	cf::sync_job {
		2215	my $pst = Storable::retrieve $path;
1927		2216
1928	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1929	$DB = stat $path ? Storable::retrieve $path : { };	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1930	}	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
		2220	BDB::db_env_txn_checkpoint $DB_ENV;
1931		2221
1932	my $pid;	2222	unlink $path;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2223	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2224	}
1980	);	2225	}
		2226	}
		2227
		2228	sub db_get($$) {
		2229	my $key = "$_[0]/$_[1]";
		2230
		2231	cf::sync_job {
		2232	BDB::db_get $DB, undef, $key, my $data;
		2233
		2234	$! ? ()
		2235	: Compress::LZF::sthaw $data
		2236	}
		2237	}
		2238
		2239	sub db_put($$$) {
		2240	BDB::dbreq_pri 4;
		2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1981	}	2242	}
1982		2243
1983	#############################################################################	2244	#############################################################################
1984	# the server's main()	2245	# the server's init and main functions
		2246
		2247	sub load_resources {
		2248	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2249	or die "unable to load regions file\n";#d#
		2250	}
1985		2251
1986	sub cfg_load {	2252	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1988	or return;	2254	or return;
1989		2255
1990	local $/;	2256	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
1992		2258
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
1995	if (exists $CFG{mlockall}) {	2264	if (exists $CFG{mlockall}) {
1996	eval {	2265	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2267	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2268	};
2000	warn $@ if $@;	2269	warn $@ if $@;
2001	}	2270	}
		2271	}
		2272
		2273	sub init {
		2274	load_resources;
2002	}	2275	}
2003		2276
2004	sub main {	2277	sub main {
2005	# we must not ever block the main coroutine	2278	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2279	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2281	(async {
2009	Event::one_event;	2282	Event::one_event;
2010	})->();	2283	})->prio (Coro::PRIO_MAX);
2011	};	2284	};
2012		2285
2013	cfg_load;	2286	cfg_load;
2014	db_load;	2287	db_init;
2015	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
2016	Event::loop;	2291	Event::loop;
2017	}	2292	}
2018		2293
2019	#############################################################################	2294	#############################################################################
2020	# initialisation	2295	# initialisation and cleanup
		2296
		2297	# install some emergency cleanup handlers
		2298	BEGIN {
		2299	for my $signal (qw(INT HUP TERM)) {
		2300	Event->signal (
		2301	reentrant => 0,
		2302	data => WF_AUTOCANCEL,
		2303	signal => $signal,
		2304	prio => 0,
		2305	cb => sub {
		2306	cf::cleanup "SIG$signal";
		2307	},
		2308	);
		2309	}
		2310	}
		2311
		2312	sub emergency_save() {
		2313	my $freeze_guard = cf::freeze_mainloop;
		2314
		2315	warn "enter emergency perl save\n";
		2316
		2317	cf::sync_job {
		2318	# use a peculiar iteration method to avoid tripping on perl
		2319	# refcount bugs in for. also avoids problems with players
		2320	# and maps saved/destroyed asynchronously.
		2321	warn "begin emergency player save\n";
		2322	for my $login (keys %cf::PLAYER) {
		2323	my $pl = $cf::PLAYER{$login} or next;
		2324	$pl->valid or next;
		2325	$pl->save;
		2326	}
		2327	warn "end emergency player save\n";
		2328
		2329	warn "begin emergency map save\n";
		2330	for my $path (keys %cf::MAP) {
		2331	my $map = $cf::MAP{$path} or next;
		2332	$map->valid or next;
		2333	$map->save;
		2334	}
		2335	warn "end emergency map save\n";
		2336
		2337	warn "begin emergency database checkpoint\n";
		2338	BDB::db_env_txn_checkpoint $DB_ENV;
		2339	warn "end emergency database checkpoint\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
		2344
		2345	sub post_cleanup {
		2346	my ($make_core) = @_;
		2347
		2348	warn Carp::longmess "post_cleanup backtrace"
		2349	if $make_core;
		2350	}
2021		2351
2022	sub reload() {	2352	sub reload() {
2023	# can/must only be called in main	2353	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2354	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2355	warn "can only reload from main coroutine";
2026	return;	2356	return;
2027	}	2357	}
2028		2358
2029	warn "reloading...";	2359	warn "reloading...";
2030		2360
2031	my $guard = freeze_mainloop;	2361	warn "entering sync_job";
		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
2033		2367
2034	eval {	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
2035	# if anything goes wrong in here, we should simply crash as we already saved	2371	# if anything goes wrong in here, we should simply crash as we already saved
2036		2372
2037	# cancel all watchers	2373	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2376	}
2041		2377
		2378	warn "flushing outstanding aio requests";
		2379	for (;;) {
		2380	BDB::flush;
		2381	IO::AIO::flush;
		2382	Coro::cede;
		2383	last unless IO::AIO::nreqs || BDB::nreqs;
		2384	warn "iterate...";
		2385	}
		2386
2042	# cancel all extension coros	2387	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2389	%EXT_CORO = ();
2045		2390
2046	# unload all extensions	2391	warn "removing commands";
2047	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2399	warn "... unloading $pkg";
2049	unload_extension $_;	2400
		2401	if (my $cb = $pkg->can ("unload")) {
		2402	eval {
		2403	$cb->($pkg);
		2404	1
		2405	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2406	}
2051		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
2052	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2415
2056	warn "removing <$k>";	2416	warn "... unloading $k";
2057	delete $INC{$k};	2417	delete $INC{$k};
2058		2418
2059	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
2061		2421
…		…
2064	}	2424	}
2065		2425
2066	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
2067	}	2427	}
2068		2428
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2432
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
2082		2435
2083	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2437	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
2086		2439
2087	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
2088	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
2089	require cf;	2443	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2445
2092	# load config and database again	2446	warn "loading config and database again";
2093	cf::cfg_load;	2447	cf::cfg_load;
2094	cf::db_load;
2095		2448
2096	# load extensions
2097	warn "load extensions";	2449	warn "loading extensions";
2098	cf::load_extensions;	2450	cf::load_extensions;
2099		2451
2100	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
2101	warn "reattach";
2102	_global_reattach;	2453	_global_reattach;
2103	};	2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
2104		2456
2105	if ($@) {	2457	warn "loading reloadable resources";
		2458	load_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
2106	warn $@;	2464	warn $@;
2107	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
2108	exit 1;	2466	exit 1;
2109	}	2467	};
2110		2468
2111	warn "reloaded successfully";	2469	warn "reloaded";
2112	};	2470	};
2113		2471
2114	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2473
2159	register_command "reload" => sub {	2474	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
2161		2476
2162	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
2164	reload;	2488	reload;
2165	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
2166	}	2492	}
2167	};	2493	};
2168		2494
2169	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
2170		2498
2171	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
2173	prio => 0,	2502	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
2176	cb => sub {	2505	cb => sub {
		2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
2177	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2519	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2520	Coro::async_pool {
		2521	write_runtime
		2522	or warn "ERROR: unable to write runtime file: $!";
		2523	};
		2524	}
		2525
		2526
		2527	$WAIT_FOR_TICK->broadcast;
		2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2529
		2530	# my $AFTER = Event::time;
		2531	# warn $AFTER - $NOW;#d#
2180		2532
2181	# if we are delayed by four ticks or more, skip them all	2533	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183		2535
2184	$TICK_WATCHER->at ($NEXT_TICK);	2536	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	2537	$TICK_WATCHER->start;
2186	},	2538	},
2187	);	2539	);
2188		2540
		2541	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	2542	BDB::max_poll_time $TICK * 0.1;
2190		2543	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	2544	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	2545	fd => BDB::poll_fileno,
2193	poll => 'r',	2546	poll => 'r',
2194	prio => 5,	2547	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	2548	data => WF_AUTOCANCEL,
2201	after => 0,	2549	cb => \&BDB::poll_cb,
2202	interval => 10,	2550	);
2203	cb => sub {	2551	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	2552
2205	write_runtime	2553	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	2554	my $status;
		2555	my $current = $Coro::current;
		2556	(
		2557	sub {
		2558	$status = $!;
		2559	$current->ready; undef $current;
		2560	},
		2561	sub {
		2562	Coro::schedule while defined $current;
		2563	$! = $status;
		2564	},
		2565	)
		2566	};
		2567
		2568	unless ($DB_ENV) {
		2569	$DB_ENV = BDB::db_env_create;
		2570
		2571	cf::sync_job {
		2572	eval {
		2573	BDB::db_env_open
		2574	$DB_ENV,
		2575	$BDB_ENV_DIR,
		2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2578	0666;
		2579
		2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2581
		2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2583	$DB_ENV->set_lk_detect;
		2584	};
		2585
		2586	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	2587	};
2208	},	2588	}
2209	);	2589	}
		2590
		2591	{
		2592	IO::AIO::min_parallel 8;
		2593
		2594	undef $Coro::AIO::WATCHER;
		2595	IO::AIO::max_poll_time $TICK * 0.1;
		2596	$AIO_POLL_WATCHER = Event->io (
		2597	reentrant => 0,
		2598	data => WF_AUTOCANCEL,
		2599	fd => IO::AIO::poll_fileno,
		2600	poll => 'r',
		2601	prio => 6,
		2602	cb => \&IO::AIO::poll_cb,
		2603	);
		2604	}
2210		2605
2211	END { cf::emergency_save }	2606	END { cf::emergency_save }
2212		2607
2213	1	2608	1
2214		2609

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