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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 1.214 by root, Wed Feb 14 00:40:05 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
		1540	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1541
1301	$self->{last_save} = $cf::RUNTIME;	1542	$self->{last_save} = $cf::RUNTIME;
1302		1543
1303	return unless $self->dirty;	1544	return unless $self->dirty;
1304		1545
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1546	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1547	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1548
1308	$self->{load_path} = $save;	1549	$self->{load_path} = $save;
1309		1550
1310	return if $self->{deny_save};	1551	return if $self->{deny_save};
1311		1552
1312	local $self->{last_access} = $self->last_access;#d#	1553	local $self->{last_access} = $self->last_access;#d#
1313		1554
		1555	cf::async {
		1556	$_->contr->save for $self->players;
		1557	};
		1558
1314	if ($uniq) {	1559	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1560	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1561	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1562	} else {
1318	$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);
1319	}	1564	}
1320	}	1565	}
1321		1566
1322	sub swap_out {	1567	sub swap_out {
1323	my ($self) = @_;	1568	my ($self) = @_;
1324		1569
1325	# save first because save cedes	1570	# save first because save cedes
1326	$self->save;	1571	$self->save;
		1572
		1573	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1574
1328	return if $self->players;	1575	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1576	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1577	return if $self->{deny_save};
1331		1578
…		…
1335		1582
1336	sub reset_at {	1583	sub reset_at {
1337	my ($self) = @_;	1584	my ($self) = @_;
1338		1585
1339	# TODO: safety, remove and allow resettable per-player maps	1586	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};	1587	return 1e99 if $self->isa ("ext::map_per_player");#d#
1341	return 1e99 if $self->{deny_reset};	1588	return 1e99 if $self->{deny_reset};
1342		1589
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1590	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	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;
1345		1592
…		…
1350	my ($self) = @_;	1597	my ($self) = @_;
1351		1598
1352	$self->reset_at <= $cf::RUNTIME	1599	$self->reset_at <= $cf::RUNTIME
1353	}	1600	}
1354		1601
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 {	1602	sub reset {
1377	my ($self) = @_;	1603	my ($self) = @_;
1378		1604
		1605	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1606
1379	return if $self->players;	1607	return if $self->players;
1380	return if $self->{path}{user_rel};#d#	1608	return if $self->isa ("ext::map_per_player");#d#
1381		1609
1382	warn "resetting map ", $self->path;#d#	1610	warn "resetting map ", $self->path;#d#
1383		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
1384	delete $cf::MAP{$self->path};	1622	delete $cf::MAP{$self->path};
		1623
		1624	$self->clear;
1385		1625
1386	$_->clear_links_to ($self) for values %cf::MAP;	1626	$_->clear_links_to ($self) for values %cf::MAP;
1387		1627
1388	$self->unlink_save;	1628	$self->unlink_save;
1389	$self->destroy;	1629	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1632	my $nuke_counter = "aaaa";
1393		1633
1394	sub nuke {	1634	sub nuke {
1395	my ($self) = @_;	1635	my ($self) = @_;
1396		1636
		1637	delete $cf::MAP{$self->path};
		1638
		1639	$self->unlink_save;
		1640
		1641	bless $self, "cf::map";
		1642	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	1643	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	1644	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	1645	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1646
		1647	$cf::MAP{$self->path} = $self;
		1648
1400	$self->reset; # polite request, might not happen	1649	$self->reset; # polite request, might not happen
1401	}	1650	}
1402		1651
1403	sub customise_for {	1652	=item cf::map::unique_maps
1404	my ($map, $ob) = @_;
1405		1653
1406	if ($map->per_player) {	1654	Returns an arrayref of paths of all shared maps that have
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1655	instantiated unique items. May block.
1408	}
1409		1656
1410	$map	1657	=cut
1411	}
1412		1658
1413	sub emergency_save {	1659	sub unique_maps() {
1414	my $freeze_guard = cf::freeze_mainloop;	1660	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1661	or return;
1415		1662
1416	warn "enter emergency map save\n";	1663	my @paths;
1417		1664
1418	cf::sync_job {	1665	for (@$files) {
1419	warn "begin emergency map save\n";	1666	utf8::decode $_;
1420	$_->save for values %cf::MAP;	1667	next if /\.pst$/;
		1668	next unless /^$PATH_SEP/o;
		1669
		1670	push @paths, cf::map::normalise $_;
1421	};	1671	}
1422		1672
1423	warn "end emergency map save\n";	1673	\@paths
1424	}	1674	}
1425		1675
1426	package cf;	1676	package cf;
1427		1677
1428	=back	1678	=back
1429		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
1430		1706
1431	=head3 cf::object::player	1707	=head3 cf::object::player
1432		1708
1433	=over 4	1709	=over 4
1434		1710
…		…
1474		1750
1475	=item $player_object->enter_link	1751	=item $player_object->enter_link
1476		1752
1477	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}>).
1478		1754
1479	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
1480	I<MUST> call C<leave_link> as soon as possible, though.	1756	I<MUST> call C<leave_link> as soon as possible, though.
1481		1757
		1758	Will never block.
		1759
1482	=item $player_object->leave_link ($map, $x, $y)	1760	=item $player_object->leave_link ($map, $x, $y)
1483		1761
1484	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
1485	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
1486	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
1487	to the emergency map position.	1765	fails, to the emergency map position.
1488		1766
1489	Might block.	1767	Might block.
1490		1768
1491	=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	}
1492		1780
1493	sub cf::object::player::enter_link {	1781	sub cf::object::player::enter_link {
1494	my ($self) = @_;	1782	my ($self) = @_;
1495		1783
1496	$self->deactivate_recursive;	1784	$self->deactivate_recursive;
1497		1785
1498	return if $self->map == $LINK_MAP;	1786	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		1787
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1788	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	1789	if $self->map;
1502		1790
1503	$self->enter_map ($LINK_MAP, 20, 20);	1791	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	1792	}
1505		1793
1506	sub cf::object::player::leave_link {	1794	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	1795	my ($self, $map, $x, $y) = @_;
1508		1796
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	1814	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	1815	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	1816	if $x <=0 && $y <= 0;
1529		1817
1530	$map->load;	1818	$map->load;
		1819	$map->load_diag;
1531		1820
		1821	return unless $self->contr->active;
1532	$self->activate_recursive;	1822	$self->activate_recursive;
1533	$self->enter_map ($map, $x, $y);	1823	$self->enter_map ($map, $x, $y);
1534	}	1824	}
1535		1825
1536	cf::player->attach (	1826	cf::player->attach (
…		…
1549		1839
1550	# try to abort aborted map switching on player login :)	1840	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes	1841	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {	1842	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;	1843	$pl->ob->enter_link;
1554	cf::async {	1844	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running	1845	# 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	1846	# and this sleep increases chances of the player not ending up in scorn
		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);
1557	Coro::Timer::sleep 1;	1851	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;	1852	$pl->ob->leave_link;
1559	};	1853	})->prio (2);
1560	}	1854	}
1561	},	1855	},
1562	);	1856	);
1563		1857
1564	=item $player_object->goto ($path, $x, $y)	1858	=item $player_object->goto ($path, $x, $y)
…		…
1568	sub cf::object::player::goto {	1862	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	1863	my ($self, $path, $x, $y) = @_;
1570		1864
1571	$self->enter_link;	1865	$self->enter_link;
1572		1866
1573	(cf::async {	1867	(async {
1574	$path = new cf::path $path;	1868	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	1869	my $map = cf::map::find $path;
1577	$map = $map->customise_for ($self) if $map;	1870	$map = $map->customise_for ($self) if $map;
1578		1871	$map
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	1872	} or
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1873	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583		1874
1584	$self->leave_link ($map, $x, $y);	1875	$self->leave_link ($map, $x, $y);
1585	})->prio (1);	1876	})->prio (1);
1586	}	1877	}
1587		1878
…		…
1591		1882
1592	sub parse_random_map_params {	1883	sub parse_random_map_params {
1593	my ($spec) = @_;	1884	my ($spec) = @_;
1594		1885
1595	my $rmp = { # defaults	1886	my $rmp = { # defaults
1596	xsize => 10,	1887	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	1888	ysize => (cf::rndm 15, 40),
		1889	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1890	#layout => string,
1598	};	1891	};
1599		1892
1600	for (split /\n/, $spec) {	1893	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	1894	my ($k, $v) = split /\s+/, $_, 2;
1602		1895
…		…
1606	$rmp	1899	$rmp
1607	}	1900	}
1608		1901
1609	sub prepare_random_map {	1902	sub prepare_random_map {
1610	my ($exit) = @_;	1903	my ($exit) = @_;
		1904
		1905	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		1906
1612	# all this does is basically replace the /! path by	1907	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	1908	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	1909	# that depends on the exit object
1615		1910
1616	my $rmp = parse_random_map_params $exit->msg;	1911	my $rmp = parse_random_map_params $exit->msg;
1617		1912
1618	if ($exit->map) {	1913	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	1914	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	1915	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	1916	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	1917	$rmp->{origin_y} = $exit->y;
1623	}	1918	}
1624		1919
1625	$rmp->{random_seed} ||= $exit->random_seed;	1920	$rmp->{random_seed} ||= $exit->random_seed;
1626		1921
1627	my $data = cf::to_json $rmp;	1922	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	1923	my $md5 = Digest::MD5::md5_hex $data;
		1924	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629		1925
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1926	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	1927	aio_write $fh, 0, (length $data), $data, 0;
		1928	undef $fh;
		1929	aio_rename "$meta~", $meta;
1632		1930
1633	$exit->slaying ("?random/$md5");	1931	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	1932	$exit->msg (undef);
1635	}	1933	}
1636	}	1934	}
…		…
1638	sub cf::object::player::enter_exit {	1936	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	1937	my ($self, $exit) = @_;
1640		1938
1641	return unless $self->type == cf::PLAYER;	1939	return unless $self->type == cf::PLAYER;
1642		1940
		1941	if ($exit->slaying eq "/!") {
		1942	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1943	cf::sync_job { prepare_random_map $exit };
		1944	}
		1945
		1946	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1947	my $hp = $exit->stats->hp;
		1948	my $sp = $exit->stats->sp;
		1949
1643	$self->enter_link;	1950	$self->enter_link;
1644		1951
1645	(cf::async {	1952	(async {
1646	$self->deactivate_recursive; # just to be sure	1953	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	1954	unless (eval {
1648	prepare_random_map $exit	1955	$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		1956
1654	1;	1957	1;
1655	}) {	1958	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	1959	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	1960	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	1961	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	1962	cf::NDI_UNIQUE | cf::NDI_RED);
1660		1963
1661	warn "ERROR in enter_exit: $@";	1964	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	1965	$self->leave_link;
1663	}	1966	}
…		…
1718	# get handled first	2021	# get handled first
1719	my $queue = delete $ns->{query_queue}	2022	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2023	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2024
1722	(shift @$queue)->[1]->($msg);	2025	(shift @$queue)->[1]->($msg);
		2026	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2027
1724	push @{ $ns->{query_queue} }, @$queue;	2028	push @{ $ns->{query_queue} }, @$queue;
1725		2029
1726	if (@{ $ns->{query_queue} } == @$queue) {	2030	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2031	if (@$queue) {
…		…
1731	}	2035	}
1732	}	2036	}
1733	},	2037	},
1734	);	2038	);
1735		2039
1736	=item $client->coro (\&cb)	2040	=item $client->async (\&cb)
1737		2041
1738	Create a new coroutine, running the specified callback. The coroutine will	2042	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2043	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2044	or loss of connection).
1741		2045
1742	=cut	2046	=cut
1743		2047
1744	sub cf::client::coro {	2048	sub cf::client::async {
1745	my ($self, $cb) = @_;	2049	my ($self, $cb) = @_;
1746		2050
1747	my $coro = &cf::async ($cb);	2051	my $coro = &Coro::async ($cb);
1748		2052
1749	$coro->on_destroy (sub {	2053	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2054	delete $self->{_coro}{$coro+0};
1751	});	2055	});
1752		2056
…		…
1888	The parameter C<$family> should best start with the name of the extension	2192	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2193	using it, it should be unique.
1890		2194
1891	=over 4	2195	=over 4
1892		2196
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	2197	=item $value = cf::db_get $family => $key
1900		2198
1901	Returns a single value from the database	2199	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		2200
1908	=item cf::db_put $family => $key => $value	2201	=item cf::db_put $family => $key => $value
1909		2202
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2203	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		2204
1921	=cut	2205	=cut
1922		2206
1923	our $DB;	2207	our $DB;
1924		2208
1925	{	2209	sub db_init {
		2210	unless ($DB) {
		2211	$DB = BDB::db_create $DB_ENV;
		2212
		2213	cf::sync_job {
		2214	eval {
		2215	$DB->set_flags (BDB::CHKSUM);
		2216
		2217	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2218	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2219	cf::cleanup "db_open(db): $!" if $!;
		2220	};
		2221	cf::cleanup "db_open(db): $@" if $@;
		2222	};
		2223
1926	my $path = cf::localdir . "/database.pst";	2224	my $path = cf::localdir . "/database.pst";
		2225	if (stat $path) {
		2226	cf::sync_job {
		2227	my $pst = Storable::retrieve $path;
1927		2228
1928	sub db_load() {	2229	cf::db_put (board => data => $pst->{board});
1929	$DB = stat $path ? Storable::retrieve $path : { };	2230	cf::db_put (guildrules => data => $pst->{guildrules});
1930	}	2231	cf::db_put (rent => balance => $pst->{rent}{balance});
		2232	BDB::db_env_txn_checkpoint $DB_ENV;
1931		2233
1932	my $pid;	2234	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	}	2235	};
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	},	2236	}
1980	);	2237	}
		2238	}
		2239
		2240	sub db_get($$) {
		2241	my $key = "$_[0]/$_[1]";
		2242
		2243	cf::sync_job {
		2244	BDB::db_get $DB, undef, $key, my $data;
		2245
		2246	$! ? ()
		2247	: Compress::LZF::sthaw $data
		2248	}
		2249	}
		2250
		2251	sub db_put($$$) {
		2252	BDB::dbreq_pri 4;
		2253	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1981	}	2254	}
1982		2255
1983	#############################################################################	2256	#############################################################################
1984	# the server's main()	2257	# the server's init and main functions
		2258
		2259	sub load_resources {
		2260	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2261	or die "unable to load regions file\n";#d#
		2262	}
1985		2263
1986	sub cfg_load {	2264	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2265	open my $fh, "<:utf8", cf::confdir . "/config"
1988	or return;	2266	or return;
1989		2267
1990	local $/;	2268	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2269	*CFG = YAML::Syck::Load <$fh>;
1992		2270
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2271	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2272
		2273	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2274	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2275
1995	if (exists $CFG{mlockall}) {	2276	if (exists $CFG{mlockall}) {
1996	eval {	2277	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2278	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2279	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2280	};
2000	warn $@ if $@;	2281	warn $@ if $@;
2001	}	2282	}
		2283	}
		2284
		2285	sub init {
		2286	load_resources;
2002	}	2287	}
2003		2288
2004	sub main {	2289	sub main {
2005	# we must not ever block the main coroutine	2290	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2291	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2292	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2293	(async {
2009	Event::one_event;	2294	Event::one_event;
2010	})->();	2295	})->prio (Coro::PRIO_MAX);
2011	};	2296	};
2012		2297
2013	cfg_load;	2298	cfg_load;
2014	db_load;	2299	db_init;
2015	load_extensions;	2300	load_extensions;
		2301
		2302	$TICK_WATCHER->start;
2016	Event::loop;	2303	Event::loop;
2017	}	2304	}
2018		2305
2019	#############################################################################	2306	#############################################################################
2020	# initialisation	2307	# initialisation and cleanup
		2308
		2309	# install some emergency cleanup handlers
		2310	BEGIN {
		2311	for my $signal (qw(INT HUP TERM)) {
		2312	Event->signal (
		2313	reentrant => 0,
		2314	data => WF_AUTOCANCEL,
		2315	signal => $signal,
		2316	prio => 0,
		2317	cb => sub {
		2318	cf::cleanup "SIG$signal";
		2319	},
		2320	);
		2321	}
		2322	}
		2323
		2324	sub emergency_save() {
		2325	my $freeze_guard = cf::freeze_mainloop;
		2326
		2327	warn "enter emergency perl save\n";
		2328
		2329	cf::sync_job {
		2330	# use a peculiar iteration method to avoid tripping on perl
		2331	# refcount bugs in for. also avoids problems with players
		2332	# and maps saved/destroyed asynchronously.
		2333	warn "begin emergency player save\n";
		2334	for my $login (keys %cf::PLAYER) {
		2335	my $pl = $cf::PLAYER{$login} or next;
		2336	$pl->valid or next;
		2337	$pl->save;
		2338	}
		2339	warn "end emergency player save\n";
		2340
		2341	warn "begin emergency map save\n";
		2342	for my $path (keys %cf::MAP) {
		2343	my $map = $cf::MAP{$path} or next;
		2344	$map->valid or next;
		2345	$map->save;
		2346	}
		2347	warn "end emergency map save\n";
		2348
		2349	warn "begin emergency database checkpoint\n";
		2350	BDB::db_env_txn_checkpoint $DB_ENV;
		2351	warn "end emergency database checkpoint\n";
		2352	};
		2353
		2354	warn "leave emergency perl save\n";
		2355	}
		2356
		2357	sub post_cleanup {
		2358	my ($make_core) = @_;
		2359
		2360	warn Carp::longmess "post_cleanup backtrace"
		2361	if $make_core;
		2362	}
2021		2363
2022	sub reload() {	2364	sub reload() {
2023	# can/must only be called in main	2365	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2366	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2367	warn "can only reload from main coroutine";
2026	return;	2368	return;
2027	}	2369	}
2028		2370
2029	warn "reloading...";	2371	warn "reloading...";
2030		2372
2031	my $guard = freeze_mainloop;	2373	warn "entering sync_job";
		2374
		2375	cf::sync_job {
		2376	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2377	cf::emergency_save;
		2378	cf::write_runtime; # external watchdog should not bark
2033		2379
2034	eval {	2380	warn "syncing database to disk";
		2381	BDB::db_env_txn_checkpoint $DB_ENV;
		2382
2035	# if anything goes wrong in here, we should simply crash as we already saved	2383	# if anything goes wrong in here, we should simply crash as we already saved
2036		2384
2037	# cancel all watchers	2385	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2386	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2387	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2388	}
2041		2389
		2390	warn "flushing outstanding aio requests";
		2391	for (;;) {
		2392	BDB::flush;
		2393	IO::AIO::flush;
		2394	Coro::cede;
		2395	last unless IO::AIO::nreqs || BDB::nreqs;
		2396	warn "iterate...";
		2397	}
		2398
2042	# cancel all extension coros	2399	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2400	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2401	%EXT_CORO = ();
2045		2402
2046	# unload all extensions	2403	warn "removing commands";
2047	for (@exts) {	2404	%COMMAND = ();
		2405
		2406	warn "removing ext commands";
		2407	%EXTCMD = ();
		2408
		2409	warn "unloading/nuking all extensions";
		2410	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2411	warn "... unloading $pkg";
2049	unload_extension $_;	2412
		2413	if (my $cb = $pkg->can ("unload")) {
		2414	eval {
		2415	$cb->($pkg);
		2416	1
		2417	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2418	}
2051		2419
		2420	warn "... nuking $pkg";
		2421	Symbol::delete_package $pkg;
		2422	}
		2423
2052	# unload all modules loaded from $LIBDIR	2424	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2425	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2426	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2427
2056	warn "removing <$k>";	2428	warn "... unloading $k";
2057	delete $INC{$k};	2429	delete $INC{$k};
2058		2430
2059	$k =~ s/\.pm$//;	2431	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2432	$k =~ s/\//::/g;
2061		2433
…		…
2064	}	2436	}
2065		2437
2066	Symbol::delete_package $k;	2438	Symbol::delete_package $k;
2067	}	2439	}
2068		2440
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2441	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2442	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2443	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2444
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2445	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2446	delete $INC{"cf.pm"};
2082		2447
2083	# don't, removes xs symbols, too,	2448	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2449	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2450	#Symbol::delete_package __PACKAGE__;
2086		2451
2087	# reload cf.pm	2452	warn "unload completed, starting to reload now";
		2453
2088	warn "reloading cf.pm";	2454	warn "reloading cf.pm";
2089	require cf;	2455	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2456	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2457
2092	# load config and database again	2458	warn "loading config and database again";
2093	cf::cfg_load;	2459	cf::cfg_load;
2094	cf::db_load;
2095		2460
2096	# load extensions
2097	warn "load extensions";	2461	warn "loading extensions";
2098	cf::load_extensions;	2462	cf::load_extensions;
2099		2463
2100	# reattach attachments to objects	2464	warn "reattaching attachments to objects/players";
2101	warn "reattach";
2102	_global_reattach;	2465	_global_reattach;
2103	};	2466	warn "reattaching attachments to maps";
		2467	reattach $_ for values %MAP;
2104		2468
2105	if ($@) {	2469	warn "loading reloadable resources";
		2470	load_resources;
		2471
		2472	warn "leaving sync_job";
		2473
		2474	1
		2475	} or do {
2106	warn $@;	2476	warn $@;
2107	warn "error while reloading, exiting.";	2477	warn "error while reloading, exiting.";
2108	exit 1;	2478	exit 1;
2109	}	2479	};
2110		2480
2111	warn "reloaded successfully";	2481	warn "reloaded";
2112	};	2482	};
2113		2483
2114	#############################################################################	2484	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} = $LINK_MAP;
2155	}
2156
2157	register "<global>", __PACKAGE__;
2158		2485
2159	register_command "reload" => sub {	2486	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2487	my ($who, $arg) = @_;
2161		2488
2162	if ($who->flag (FLAG_WIZ)) {	2489	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");	2490	$who->message ("reloading server.");
		2491
		2492	# doing reload synchronously and two reloads happen back-to-back,
		2493	# coro crashes during coro_state_free->destroy here.
		2494
		2495	$RELOAD_WATCHER ||= Event->timer (
		2496	reentrant => 0,
		2497	after => 0,
		2498	data => WF_AUTOCANCEL,
		2499	cb => sub {
2164	reload;	2500	reload;
2165	$who->message ("end of reload.");	2501	undef $RELOAD_WATCHER;
		2502	},
		2503	);
2166	}	2504	}
2167	};	2505	};
2168		2506
2169	unshift @INC, $LIBDIR;	2507	unshift @INC, $LIBDIR;
		2508
		2509	my $bug_warning = 0;
2170		2510
2171	$TICK_WATCHER = Event->timer (	2511	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2512	reentrant => 0,
		2513	parked => 1,
2173	prio => 0,	2514	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2515	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2516	data => WF_AUTOCANCEL,
2176	cb => sub {	2517	cb => sub {
		2518	if ($Coro::current != $Coro::main) {
		2519	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2520	unless ++$bug_warning > 10;
		2521	return;
		2522	}
		2523
		2524	$NOW = Event::time;
		2525
2177	cf::server_tick; # one server iteration	2526	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;	2527	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	2528	$NEXT_TICK += $TICK;
		2529
		2530	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2531	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2532	Coro::async_pool {
		2533	write_runtime
		2534	or warn "ERROR: unable to write runtime file: $!";
		2535	};
		2536	}
		2537
		2538
		2539	$WAIT_FOR_TICK->broadcast;
		2540	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2541
		2542	# my $AFTER = Event::time;
		2543	# warn $AFTER - $NOW;#d#
2180		2544
2181	# if we are delayed by four ticks or more, skip them all	2545	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2546	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183		2547
2184	$TICK_WATCHER->at ($NEXT_TICK);	2548	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	2549	$TICK_WATCHER->start;
2186	},	2550	},
2187	);	2551	);
2188		2552
		2553	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	2554	BDB::max_poll_time $TICK * 0.1;
2190		2555	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	2556	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	2557	fd => BDB::poll_fileno,
2193	poll => 'r',	2558	poll => 'r',
2194	prio => 5,	2559	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	2560	data => WF_AUTOCANCEL,
2201	after => 0,	2561	cb => \&BDB::poll_cb,
2202	interval => 10,	2562	);
2203	cb => sub {	2563	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	2564
2205	write_runtime	2565	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	2566	my $status;
		2567	my $current = $Coro::current;
		2568	(
		2569	sub {
		2570	$status = $!;
		2571	$current->ready; undef $current;
		2572	},
		2573	sub {
		2574	Coro::schedule while defined $current;
		2575	$! = $status;
		2576	},
		2577	)
		2578	};
		2579
		2580	unless ($DB_ENV) {
		2581	$DB_ENV = BDB::db_env_create;
		2582
		2583	cf::sync_job {
		2584	eval {
		2585	BDB::db_env_open
		2586	$DB_ENV,
		2587	$BDB_ENV_DIR,
		2588	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2589	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2590	0666;
		2591
		2592	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2593
		2594	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2595	$DB_ENV->set_lk_detect;
		2596	};
		2597
		2598	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	2599	};
2208	},	2600	}
2209	);	2601	}
		2602
		2603	{
		2604	IO::AIO::min_parallel 8;
		2605
		2606	undef $Coro::AIO::WATCHER;
		2607	IO::AIO::max_poll_time $TICK * 0.1;
		2608	$AIO_POLL_WATCHER = Event->io (
		2609	reentrant => 0,
		2610	data => WF_AUTOCANCEL,
		2611	fd => IO::AIO::poll_fileno,
		2612	poll => 'r',
		2613	prio => 6,
		2614	cb => \&IO::AIO::poll_cb,
		2615	);
		2616	}
2210		2617
2211	END { cf::emergency_save }	2618	END { cf::emergency_save }
2212		2619
2213	1	2620	1
2214		2621

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