ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/cf.schmorp.de/server/lib/cf.pm

Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.218 by root, Sat Feb 17 01:58:55 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 $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	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
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=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	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	304	=cut
198		305
199	sub sync_job(&) {	306	sub sync_job(&) {
200	my ($job) = @_;	307	my ($job) = @_;
201		308
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
212	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
215	while ($busy) {	326	while ($busy) {
216	Coro::cede_notself;	327	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	328	}
		329
		330	wantarray ? @res : $res[0]
219	} else {	331	} else {
220	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
221	}	335	}
222
223	wantarray ? @res : $res[0]
224	}	336	}
225		337
226	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
227		339
228	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
230		342
231	=cut	343	=cut
232		344
233	sub coro(&) {	345	sub async_ext(&) {
234	my $cb = shift;	346	my $cb = shift;
235		347
236	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		349
243	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
245	});	352	});
246	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
253		360
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	362	or return;
256		363
257	my $value = $cf::RUNTIME;	364	my $value = $cf::RUNTIME + 90 + 10;
		365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	369	and return;
260		370
		371	# always fsync - this file is important
261	aio_fsync $fh	372	aio_fsync $fh
262	and return;	373	and return;
263		374
264	close $fh	375	close $fh
265	or return;	376	or return;
…		…
271	}	382	}
272		383
273	=back	384	=back
274		385
275	=cut	386	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		387
387	#############################################################################	388	#############################################################################
388		389
389	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
390		391
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	518	our @CB_MAP = ();
518		519
519	my %attachment;	520	my %attachment;
520		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
521	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
523		530
524	use sort 'stable';	531	use sort 'stable';
525		532
…		…
696	# object support	703	# object support
697		704
698	sub reattach {	705	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		710
702	my $registry = $obj->registry;	711	my $registry = $obj->registry;
703		712
704	@$registry = ();	713	@$registry = ();
705		714
…		…
752	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
753		762
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	767	close $fh;
759		768
760	if (@$objs) {	769	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	775	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
768	}	777	}
769	} else {	778	} else {
770	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
798	or return;	807	or return;
799		808
800	unless (aio_stat "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
802	or return;	811	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
804	}	813	}
805		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	817	return ($data, $av);
807	}	818	}
808		819
809	#############################################################################	820	#############################################################################
810	# command handling &c	821	# command handling &c
…		…
835	=cut	846	=cut
836		847
837	sub register_extcmd {	848	sub register_extcmd {
838	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
839		850
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
844	}	852	}
845		853
846	cf::player->attach (	854	cf::player->attach (
847	on_command => sub {	855	on_command => sub {
848	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
861		869
862	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
863		871
864	if (ref $msg) {	872	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	876	}
869	}	877	}
870	} else {	878	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		881
874	cf::override;	882	cf::override;
875	},	883	},
876	);	884	);
877		885
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	886	sub load_extension {
885	my ($path) = @_;	887	my ($path) = @_;
886		888
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	890	my $base = $1;
889	my $pkg = $1;	891	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
892		894
893	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
894		896
895	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
896	or die "$path: $!";	898	or die "$path: $!";
897		899
898	my $source =	900	my $source =
899	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
902	. "\n};\n1";	904	. "\n};\n1";
903		905
904	eval $source	906	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	908	: "extension disabled.\n";
907		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	910	warn $@;
909	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
910		912	exit 1;
911	# no strict 'refs';	913	}
912	# @{"$pkg\::ISA"} = ext::;	914	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	915	}
927		916
928	# remove commands	917	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	918	}
953		919
954	sub load_extensions {	920	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	922	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
961	}	927	}
962	}	928	}
963		929
964	#############################################################################	930	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		931
1002	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1003		933
1004	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1005		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1006	=head3 cf::player	942	=head3 cf::player
1007		943
1008	=over 4	944	=over 4
1009		945
1010	=item cf::player::exists $login	946	=item cf::player::find $login
1011		947
1012	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1013		949
1014	=cut	950	=cut
1015		951
1016	sub cf::player::exists($) {	952	sub playerdir($) {
1017	cf::player::find $_[0]	953	cf::localdir
1018	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
1019	}	1100	}
1020		1101
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1103
1023	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1024		1105
1025	=cut	1106	=cut
1026		1107
1027	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1029		1110
1030	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1031		1112
1032	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1033	}	1114	}
		1115
		1116	package cf;
1034		1117
1035	=back	1118	=back
1036		1119
1037		1120
1038	=head3 cf::map	1121	=head3 cf::map
…		…
1044	package cf::map;	1127	package cf::map;
1045		1128
1046	use Fcntl;	1129	use Fcntl;
1047	use Coro::AIO;	1130	use Coro::AIO;
1048		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1049	our $MAX_RESET = 7200;	1136	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1137	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1138
1054	sub generate_random_map {	1139	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1142	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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
1071	}	1284	}
1072		1285
1073	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1074	# all maps in C++...	1287	# all maps in C++...
1075	sub change_all_map_light {	1288	sub change_all_map_light {
1076	my ($change) = @_;	1289	my ($change) = @_;
1077		1290
1078	$_->change_map_light ($change) for values %cf::MAP;	1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
1079	}	1293	}
1080		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
1081	sub try_load_header($) {	1303	sub load_header_from($) {
1082	my ($path) = @_;	1304	my ($self, $path) = @_;
1083		1305
1084	utf8::encode $path;	1306	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
1086	or return;	1311	or return;
1087		1312
1088	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
1089	or return;	1356	or return;
		1357	$self->prepare_orig;
		1358	}
1090		1359
1091	$map->load_header ($path)	1360	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1361	}
1099		1362
		1363	sub find;
1100	sub find_map {	1364	sub find {
1101	my ($path, $origin) = @_;	1365	my ($path, $origin) = @_;
1102		1366
1103	#warn "find_map<$path,$origin>\n";#d#	1367	$path = normalise $path, $origin && $origin->path;
1104		1368
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1369	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1370
1108	$cf::MAP{$key} || do {	1371	$cf::MAP{$path} || do {
1109	# do it the slow way	1372	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1373	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1374	or return;
1124		1375
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1376	$map->{last_save} = $cf::RUNTIME;
1135		1377
1136	$map->reset if $map->should_reset;	1378	$map->load_header
		1379	or return;
1137		1380
		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;
		1384	$map->reset;
		1385	undef $guard;
		1386	return find $path;
		1387	}
		1388
1138	$cf::MAP{$key} = $map	1389	$cf::MAP{$path} = $map
1139	}	1390	}
1140	}	1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
1141		1395
1142	sub load {	1396	sub load {
1143	my ($self) = @_;	1397	my ($self) = @_;
1144		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
		1401	my $path = $self->{path};
		1402	my $guard = cf::lock_acquire "map_load:$path";
		1403
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1404	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1405
1147	$self->in_memory (cf::MAP_LOADING);	1406	$self->in_memory (cf::MAP_LOADING);
1148		1407
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
1152	$self->load_objects ($self->{load_path}, 1)	1412	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1413	or return;
1154		1414
		1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1416	if delete $self->{load_original};
		1417
1155	if (my $uniq = $path->uniq_path) {	1418	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1419	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1420	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1421	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1422	$self->_load_objects ($uniq, 0);
1160	}	1423	}
1161	}	1424	}
		1425
		1426	Coro::cede;
1162		1427
1163	# now do the right thing for maps	1428	# now do the right thing for maps
1164	$self->link_multipart_objects;	1429	$self->link_multipart_objects;
1165		1430
1166	if ($self->{path}->is_style_map) {	1431	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1432	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1433	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1434	$self->update_buttons;
		1435	Coro::cede;
1173	$self->set_darkness_map;	1436	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1437	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1438	unless $self->difficulty;
		1439	Coro::cede;
1176	$self->activate;	1440	$self->activate;
1177	}	1441	}
1178		1442
		1443	$self->post_load;
		1444
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1445	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1446	}
1181		1447
1182	sub load_map_sync {	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	}
		1479	}
		1480
		1481	sub find_sync {
1183	my ($path, $origin) = @_;	1482	my ($path, $origin) = @_;
1184		1483
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1484	cf::sync_job { find $path, $origin }
		1485	}
1186		1486
1187	cf::sync_job {	1487	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1488	my ($map) = @_;
1189	or return;	1489
		1490	cf::sync_job { $map->load };
		1491	}
		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;
1190	$map->load;	1511	$map->load;
1191	$map	1512
		1513	delete $MAP_PREFETCH{$path};
		1514	}
		1515	}
		1516	undef $MAP_PREFETCHER;
1192	}	1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
1193	}	1521	}
1194		1522
1195	sub save {	1523	sub save {
1196	my ($self) = @_;	1524	my ($self) = @_;
1197		1525
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1527
1201	$self->{last_save} = $cf::RUNTIME;	1528	$self->{last_save} = $cf::RUNTIME;
1202		1529
1203	return unless $self->dirty;	1530	return unless $self->dirty;
1204		1531
		1532	my $save = $self->save_path; utf8::encode $save;
		1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1534
1205	$self->{load_path} = $save;	1535	$self->{load_path} = $save;
1206		1536
1207	return if $self->{deny_save};	1537	return if $self->{deny_save};
1208		1538
1209	warn "saving map ", $self->path;	1539	local $self->{last_access} = $self->last_access;#d#
		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
1210		1544
1211	if ($uniq) {	1545	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1548	} else {
1215	$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);
1216	}	1550	}
1217	}	1551	}
1218		1552
1219	sub swap_out {	1553	sub swap_out {
1220	my ($self) = @_;	1554	my ($self) = @_;
		1555
		1556	# save first because save cedes
		1557	$self->save;
		1558
		1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1560
1222	return if $self->players;	1561	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1563	return if $self->{deny_save};
1225		1564
1226	$self->save;
1227	$self->clear;	1565	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1566	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1567	}
1230		1568
		1569	sub reset_at {
		1570	my ($self) = @_;
		1571
		1572	# TODO: safety, remove and allow resettable per-player maps
		1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1574	return 1e99 if $self->{deny_reset};
		1575
		1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1578
		1579	$time + $to
		1580	}
		1581
1231	sub should_reset {	1582	sub should_reset {
1232	my ($map) = @_;	1583	my ($self) = @_;
1233		1584
1234	# TODO: safety, remove and allow resettable per-player maps	1585	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1586	}
1243		1587
1244	sub reset {	1588	sub reset {
1245	my ($self) = @_;	1589	my ($self) = @_;
1246		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
1247	return if $self->players;	1593	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1594	return if $self->isa ("ext::map_per_player");#d#
1249		1595
1250	warn "resetting map ", $self->path;#d#	1596	warn "resetting map ", $self->path;#d#
1251		1597
1252	utf8::encode (my $save = $self->{path}->save_path);	1598	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1599
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	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
		1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
1255		1611
1256	$_->clear_links_to ($self) for values %cf::MAP;	1612	$_->clear_links_to ($self) for values %cf::MAP;
1257		1613
		1614	$self->unlink_save;
1258	$self->clear;	1615	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1616	}
1262		1617
1263	sub customise_for {	1618	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1619
1266	if ($map->per_player) {	1620	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1621	my ($self) = @_;
1268	}
1269		1622
1270	$map	1623	delete $cf::MAP{$self->path};
1271	}
1272		1624
1273	sub emergency_save {	1625	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1626
1276	warn "enter emergency map save\n";	1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
		1629	$self->{deny_save} = 1;
		1630	$self->reset_timeout (1);
		1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1632
1278	cf::sync_job {	1633	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1634
1280	$_->save for values %cf::MAP;	1635	$self->reset; # polite request, might not happen
		1636	}
		1637
		1638	=item cf::map::unique_maps
		1639
		1640	Returns an arrayref of paths of all shared maps that have
		1641	instantiated unique items. May block.
		1642
		1643	=cut
		1644
		1645	sub unique_maps() {
		1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
		1648
		1649	my @paths;
		1650
		1651	for (@$files) {
		1652	utf8::decode $_;
		1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
1281	};	1657	}
1282		1658
1283	warn "end emergency map save\n";	1659	\@paths
1284	}	1660	}
1285		1661
1286	package cf;	1662	package cf;
1287		1663
1288	=back	1664	=back
1289		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
1290		1692
1291	=head3 cf::object::player	1693	=head3 cf::object::player
1292		1694
1293	=over 4	1695	=over 4
1294		1696
…		…
1330	(ref $cf::CFG{"may_$access"}	1732	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1733	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1734	: $cf::CFG{"may_$access"})
1333	}	1735	}
1334		1736
		1737	=item $player_object->enter_link
		1738
		1739	Freezes the player and moves him/her to a special map (C<{link}>).
		1740
		1741	The player should be reasonably safe there for short amounts of time. You
		1742	I<MUST> call C<leave_link> as soon as possible, though.
		1743
		1744	Will never block.
		1745
		1746	=item $player_object->leave_link ($map, $x, $y)
		1747
		1748	Moves the player out of the special C<{link}> map onto the specified
		1749	map. If the map is not valid (or omitted), the player will be moved back
		1750	to the location he/she was before the call to C<enter_link>, or, if that
		1751	fails, to the emergency map position.
		1752
		1753	Might block.
		1754
		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	}
		1766
1335	sub cf::object::player::enter_link {	1767	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1768	my ($self) = @_;
1337		1769
1338	return if $self->map == $LINK_MAP;	1770	$self->deactivate_recursive;
1339		1771
		1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1773
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1775	if $self->map;
1342		1776
1343	$self->enter_map ($LINK_MAP, 20, 20);	1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1778	}
1346		1779
1347	sub cf::object::player::leave_link {	1780	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1781	my ($self, $map, $x, $y) = @_;
1349		1782
1350	my $link_pos = delete $self->{_link_pos};	1783	my $link_pos = delete $self->{_link_pos};
1351		1784
1352	unless ($map) {	1785	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1786	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1787	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1788	$map = cf::map::find $map;
1358		1789
1359	unless ($map) {	1790	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1791	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1792	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1793	or die "FATAL: cannot load emergency map\n";
1363	}	1794	}
1364	}	1795	}
1365		1796
1366	($x, $y) = (-1, -1)	1797	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1800	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1801	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1802	if $x <=0 && $y <= 0;
1372		1803
1373	$map->load;	1804	$map->load;
		1805	$map->load_diag;
1374		1806
		1807	return unless $self->contr->active;
1375	$self->activate_recursive;	1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	1811	$self->enter_map ($map, $x, $y);
1377	}	1812	}
1378		1813
		1814	cf::player->attach (
		1815	on_logout => sub {
		1816	my ($pl) = @_;
		1817
		1818	# abort map switching before logout
		1819	if ($pl->ob->{_link_pos}) {
		1820	cf::sync_job {
		1821	$pl->ob->leave_link
		1822	};
		1823	}
		1824	},
		1825	on_login => sub {
		1826	my ($pl) = @_;
		1827
		1828	# try to abort aborted map switching on player login :)
		1829	# should happen only on crashes
		1830	if ($pl->ob->{_link_pos}) {
		1831	$pl->ob->enter_link;
		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);
		1837	# we need this sleep as the login has a concurrent enter_exit running
		1838	# and this sleep increases chances of the player not ending up in scorn
		1839	Coro::Timer::sleep 1;
		1840	$pl->ob->leave_link;
		1841	})->prio (2);
		1842	}
		1843	},
		1844	);
		1845
1379	=item $player_object->goto_map ($map, $x, $y)	1846	=item $player_object->goto ($path, $x, $y)
1380		1847
1381	=cut	1848	=cut
1382		1849
1383	sub cf::object::player::goto_map {	1850	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1851	my ($self, $path, $x, $y) = @_;
1385		1852
1386	$self->enter_link;	1853	$self->enter_link;
1387		1854
1388	(Coro::async {	1855	(async {
1389	$path = new cf::path $path;	1856	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1857	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1858	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1859	$map
		1860	} or
		1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1862
1397	$self->leave_link ($map, $x, $y);	1863	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1864	})->prio (1);
1399	}	1865	}
1400		1866
…		…
1404		1870
1405	sub parse_random_map_params {	1871	sub parse_random_map_params {
1406	my ($spec) = @_;	1872	my ($spec) = @_;
1407		1873
1408	my $rmp = { # defaults	1874	my $rmp = { # defaults
1409	xsize => 10,	1875	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
1411	};	1879	};
1412		1880
1413	for (split /\n/, $spec) {	1881	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1882	my ($k, $v) = split /\s+/, $_, 2;
1415		1883
…		…
1419	$rmp	1887	$rmp
1420	}	1888	}
1421		1889
1422	sub prepare_random_map {	1890	sub prepare_random_map {
1423	my ($exit) = @_;	1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1894
1425	# all this does is basically replace the /! path by	1895	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1896	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1897	# that depends on the exit object
1428		1898
1429	my $rmp = parse_random_map_params $exit->msg;	1899	my $rmp = parse_random_map_params $exit->msg;
1430		1900
1431	if ($exit->map) {	1901	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	1902	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	1903	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	1904	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	1905	$rmp->{origin_y} = $exit->y;
1436	}	1906	}
1437		1907
1438	$rmp->{random_seed} ||= $exit->random_seed;	1908	$rmp->{random_seed} ||= $exit->random_seed;
1439		1909
1440	my $data = cf::to_json $rmp;	1910	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1913
1443	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) {
1444	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;
1445		1918
1446	$exit->slaying ("?random/$md5");	1919	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1920	$exit->msg (undef);
1448	}	1921	}
1449	}	1922	}
…		…
1451	sub cf::object::player::enter_exit {	1924	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	1925	my ($self, $exit) = @_;
1453		1926
1454	return unless $self->type == cf::PLAYER;	1927	return unless $self->type == cf::PLAYER;
1455		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
1456	$self->enter_link;	1938	$self->enter_link;
1457		1939
1458	(Coro::async {	1940	(async {
		1941	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1942	unless (eval {
1460		1943	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		1944
1467	1;	1945	1;
1468	}) {	1946	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1947	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "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. "
1471	. "Please report this to the dungeon master",	1949	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1950	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1951
1474	warn "ERROR in enter_exit: $@";	1952	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1953	$self->leave_link;
1476	}	1954	}
…		…
1527	on_reply => sub {	2005	on_reply => sub {
1528	my ($ns, $msg) = @_;	2006	my ($ns, $msg) = @_;
1529		2007
1530	# this weird shuffling is so that direct followup queries	2008	# this weird shuffling is so that direct followup queries
1531	# get handled first	2009	# get handled first
1532	my $queue = delete $ns->{query_queue};	2010	my $queue = delete $ns->{query_queue}
		2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2012
1534	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2015
1536	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
1537		2017
1538	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2019	if (@$queue) {
…		…
1543	}	2023	}
1544	}	2024	}
1545	},	2025	},
1546	);	2026	);
1547		2027
1548	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1549		2029
1550	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1551	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,
1552	or loss of connection).	2032	or loss of connection).
1553		2033
1554	=cut	2034	=cut
1555		2035
1556	sub cf::client::coro {	2036	sub cf::client::async {
1557	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1558		2038
1559	my $coro; $coro = async {	2039	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2040
1566	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1568	});	2043	});
1569		2044
…		…
1705	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
1706	using it, it should be unique.	2181	using it, it should be unique.
1707		2182
1708	=over 4	2183	=over 4
1709		2184
1710	=item $hashref = cf::db_get $family
1711
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key	2185	=item $value = cf::db_get $family => $key
1717		2186
1718	Returns a single value from the database	2187	Returns a single value from the database.
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724		2188
1725	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1726		2190
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	Stores the given C<$value> in the family.
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737		2192
1738	=cut	2193	=cut
1739		2194
1740	our $DB;	2195	our $DB;
1741		2196
1742	{	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
1743	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;
1744		2216
1745	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1746	warn "loading database $path\n";#d# remove later	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1747	$DB = stat $path ? Storable::retrieve $path : { };	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
1748	}	2220	BDB::db_env_txn_checkpoint $DB_ENV;
1749		2221
1750	my $pid;	2222	unlink $path;
1751
1752	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}	2223	};
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});
1773
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {
1780	@_ >= 2
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784
1785	sub db_put($$;$) {
1786	if (@_ >= 3) {
1787	$DB->{$_[0]}{$_[1]} = $_[2];
1788	} else {
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793
1794	cf::global->attach (
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	2224	}
1799	);	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 { };
1800	}	2242	}
1801		2243
1802	#############################################################################	2244	#############################################################################
1803	# the server's main()	2245	# the server's init and main functions
		2246
		2247	sub init_resources {
		2248	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2249	or die "unable to load regions file\n";#d#
		2250	}
1804		2251
1805	sub cfg_load {	2252	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2254	or return;
1808		2255
1809	local $/;	2256	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		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
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
		2271	}
		2272
		2273	sub init {
		2274	init_resources;
1811	}	2275	}
1812		2276
1813	sub main {	2277	sub main {
1814	# we must not ever block the main coroutine	2278	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2279	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2281	(async {
1818	Event::one_event;	2282	Event::one_event;
1819	})->();	2283	})->prio (Coro::PRIO_MAX);
1820	};	2284	};
1821		2285
1822	cfg_load;	2286	cfg_load;
1823	db_load;	2287	db_init;
1824	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
1825	Event::loop;	2291	Event::loop;
1826	}	2292	}
1827		2293
1828	#############################################################################	2294	#############################################################################
1829	# initialisation	2295	# initialisation and cleanup
1830		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 $make_core;
		2350	}
		2351
1831	sub perl_reload() {	2352	sub reload() {
1832	# can/must only be called in main	2353	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2354	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2355	warn "can only reload from main coroutine";
1835	return;	2356	return;
1836	}	2357	}
1837		2358
1838	warn "reloading...";	2359	warn "reloading...";
1839		2360
1840	local $FREEZE = 1;	2361	warn "entering sync_job";
		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
1842		2367
1843	eval {	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
1844	# 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
1845		2372
1846	# cancel all watchers	2373	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2376	}
1850		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
1851	# cancel all extension coros	2387	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2389	%EXT_CORO = ();
1854		2390
1855	# unload all extensions	2391	warn "removing commands";
1856	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2399	warn "... unloading $pkg";
1858	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: $@";
1859	}	2406	}
1860		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
1861	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2415
1865	warn "removing <$k>";	2416	warn "... unloading $k";
1866	delete $INC{$k};	2417	delete $INC{$k};
1867		2418
1868	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
1870		2421
…		…
1873	}	2424	}
1874		2425
1875	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
1876	}	2427	}
1877		2428
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
1884	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);
1885		2432
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
1891		2435
1892	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2437	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
1895		2439
1896	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
1897	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
1898	require cf;	2443	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2445
1901	# load config and database again	2446	warn "loading config and database again";
1902	cf::cfg_load;	2447	cf::cfg_load;
1903	cf::db_load;
1904		2448
1905	# load extensions
1906	warn "load extensions";	2449	warn "loading extensions";
1907	cf::load_extensions;	2450	cf::load_extensions;
1908		2451
1909	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2453	_global_reattach;
1912	};	2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
1913		2456
1914	if ($@) {	2457	warn "loading reloadable resources";
		2458	init_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
1915	warn $@;	2464	warn $@;
1916	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
1917	exit 1;	2466	exit 1;
1918	}	2467	};
1919		2468
1920	warn "reloaded successfully";	2469	warn "reloaded";
1921	};	2470	};
1922		2471
1923	#############################################################################	2472	our $RELOAD_WATCHER; # used only during reload
1924		2473
1925	unless ($LINK_MAP) {
1926	$LINK_MAP = cf::map::new;
1927
1928	$LINK_MAP->width (41);
1929	$LINK_MAP->height (41);
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2474	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
1970		2476
1971	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end 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 {
		2488	reload;
		2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
1975	}	2492	}
1976	};	2493	};
1977		2494
1978	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
1979		2498
1980	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
1982	prio => 0,	2502	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
1985	cb => sub {	2505	cb => sub {
1986	unless ($FREEZE) {	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
1987	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
1989	}
1990
1991	$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	$WAIT_FOR_TICK->broadcast;
		2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2528
		2529	# my $AFTER = Event::time;
		2530	# warn $AFTER - $NOW;#d#
1992		2531
1993	# if we are delayed by four ticks or more, skip them all	2532	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2534
1996	$TICK_WATCHER->at ($NEXT_TICK);	2535	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2536	$TICK_WATCHER->start;
1998	},	2537	},
1999	);	2538	);
2000		2539
		2540	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	2541	BDB::max_poll_time $TICK * 0.1;
2002		2542	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	2543	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2544	fd => BDB::poll_fileno,
2005	poll => 'r',	2545	poll => 'r',
2006	prio => 5,	2546	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	2547	data => WF_AUTOCANCEL,
2013	after => 0,	2548	cb => \&BDB::poll_cb,
2014	interval => 10,	2549	);
2015	cb => sub {	2550	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	2551
2017	write_runtime	2552	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	2553	my $status;
		2554	my $current = $Coro::current;
		2555	(
		2556	sub {
		2557	$status = $!;
		2558	$current->ready; undef $current;
		2559	},
		2560	sub {
		2561	Coro::schedule while defined $current;
		2562	$! = $status;
		2563	},
		2564	)
		2565	};
		2566
		2567	unless ($DB_ENV) {
		2568	$DB_ENV = BDB::db_env_create;
		2569
		2570	cf::sync_job {
		2571	eval {
		2572	BDB::db_env_open
		2573	$DB_ENV,
		2574	$BDB_ENV_DIR,
		2575	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2576	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2577	0666;
		2578
		2579	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2580
		2581	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2582	$DB_ENV->set_lk_detect;
		2583	};
		2584
		2585	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	2586	};
2020	},	2587	}
2021	);	2588	}
		2589
		2590	{
		2591	IO::AIO::min_parallel 8;
		2592
		2593	undef $Coro::AIO::WATCHER;
		2594	IO::AIO::max_poll_time $TICK * 0.1;
		2595	$AIO_POLL_WATCHER = Event->io (
		2596	reentrant => 0,
		2597	data => WF_AUTOCANCEL,
		2598	fd => IO::AIO::poll_fileno,
		2599	poll => 'r',
		2600	prio => 6,
		2601	cb => \&IO::AIO::poll_cb,
		2602	);
		2603	}
		2604
		2605	END { cf::emergency_save }
2022		2606
2023	1	2607	1
2024		2608

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines