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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 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
…		…
203	# this is the main coro, too bad, we have to block	310	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	311	# till the operation succeeds, freezing the server :/
205		312
206	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	314	# (but this is cancel-safe)
208	local $FREEZE = 1;	315	my $freeze_guard = freeze_mainloop;
209		316
210	my $busy = 1;	317	my $busy = 1;
211	my @res;	318	my @res;
212		319
213	(Coro::async {	320	(async {
214	@res = eval { $job->() };	321	@res = eval { $job->() };
215	warn $@ if $@;	322	warn $@ if $@;
216	undef $busy;	323	undef $busy;
217	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
218		325
219	while ($busy) {	326	while ($busy) {
220	Coro::cede_notself;	327	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	328	}
223		329
224	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
225	} else {	331	} else {
226	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
227		333
228	$job->()	334	$job->()
229	}	335	}
230	}	336	}
231		337
232	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
233		339
234	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
236		342
237	=cut	343	=cut
238		344
239	sub coro(&) {	345	sub async_ext(&) {
240	my $cb = shift;	346	my $cb = shift;
241		347
242	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		349
249	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
251	});	352	});
252	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
253		354
254	$coro	355	$coro
255	}	356	}
256		357
257	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
258	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
259		362
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	364	or return;
262		365
		366	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	371	and return;
266		372
		373	# always fsync - this file is important
267	aio_fsync $fh	374	aio_fsync $fh
268	and return;	375	and return;
269		376
270	close $fh	377	close $fh
271	or return;	378	or return;
…		…
277	}	384	}
278		385
279	=back	386	=back
280		387
281	=cut	388	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		389
393	#############################################################################	390	#############################################################################
394		391
395	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
396		393
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	520	our @CB_MAP = ();
524		521
525	my %attachment;	522	my %attachment;
526		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
527	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
529		532
530	use sort 'stable';	533	use sort 'stable';
531		534
…		…
702	# object support	705	# object support
703		706
704	sub reattach {	707	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		712
708	my $registry = $obj->registry;	713	my $registry = $obj->registry;
709		714
710	@$registry = ();	715	@$registry = ();
711		716
…		…
758	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
759		764
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	769	close $fh;
765		770
766	if (@$objs) {	771	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	777	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
774	}	779	}
775	} else {	780	} else {
776	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
804	or return;	809	or return;
805		810
806	unless (aio_stat "$filename.pst") {	811	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	812	(aio_load "$filename.pst", $av) >= 0
808	or return;	813	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
810	}	815	}
811		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	819	return ($data, $av);
813	}	820	}
814		821
815	#############################################################################	822	#############################################################################
816	# command handling &c	823	# command handling &c
…		…
841	=cut	848	=cut
842		849
843	sub register_extcmd {	850	sub register_extcmd {
844	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
845		852
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
850	}	854	}
851		855
852	cf::player->attach (	856	cf::player->attach (
853	on_command => sub {	857	on_command => sub {
854	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
867		871
868	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
869		873
870	if (ref $msg) {	874	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	878	}
875	}	879	}
876	} else {	880	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		883
880	cf::override;	884	cf::override;
881	},	885	},
882	);	886	);
883		887
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	888	sub load_extension {
891	my ($path) = @_;	889	my ($path) = @_;
892		890
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	892	my $base = $1;
895	my $pkg = $1;	893	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
898		896
899	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
900		898
901	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
902	or die "$path: $!";	900	or die "$path: $!";
903		901
904	my $source =	902	my $source =
905	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
908	. "\n};\n1";	906	. "\n};\n1";
909		907
910	eval $source	908	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	910	: "extension disabled.\n";
913		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	912	warn $@;
915	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
916		914	exit 1;
917	# no strict 'refs';	915	}
918	# @{"$pkg\::ISA"} = ext::;	916	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	917	}
933		918
934	# remove commands	919	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	920	}
959		921
960	sub load_extensions {	922	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	924	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
967	}	929	}
968	}	930	}
969		931
970	#############################################################################	932	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		933
1008	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1009		935
1010	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1011		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1012	=head3 cf::player	944	=head3 cf::player
1013		945
1014	=over 4	946	=over 4
1015		947
1016	=item cf::player::exists $login	948	=item cf::player::find $login
1017		949
1018	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1019		951
1020	=cut	952	=cut
1021		953
1022	sub cf::player::exists($) {	954	sub playerdir($) {
1023	cf::player::find $_[0]	955	cf::localdir
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
1025	}	1102	}
1026		1103
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028		1105
1029	Sends an ext reply to the player.	1106	Sends an ext reply to the player.
1030		1107
1031	=cut	1108	=cut
1032		1109
1033	sub cf::player::ext_reply($$$%) {	1110	sub ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;	1111	my ($self, $id, %msg) = @_;
1035		1112
1036	$msg{msgid} = $id;	1113	$msg{msgid} = $id;
1037		1114
1038	$self->send ("ext " . to_json \%msg);	1115	$self->send ("ext " . cf::to_json \%msg);
1039	}	1116	}
		1117
		1118	package cf;
1040		1119
1041	=back	1120	=back
1042		1121
1043		1122
1044	=head3 cf::map	1123	=head3 cf::map
…		…
1050	package cf::map;	1129	package cf::map;
1051		1130
1052	use Fcntl;	1131	use Fcntl;
1053	use Coro::AIO;	1132	use Coro::AIO;
1054		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
1055	our $MAX_RESET = 7200;	1138	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1139	our $DEFAULT_RESET = 3000;
1057		1140
1058	sub generate_random_map {	1141	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1142	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1143	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1144	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1148	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1149	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1075	}	1286	}
1076		1287
1077	# and all this just because we cannot iterate over	1288	# and all this just because we cannot iterate over
1078	# all maps in C++...	1289	# all maps in C++...
1079	sub change_all_map_light {	1290	sub change_all_map_light {
1080	my ($change) = @_;	1291	my ($change) = @_;
1081		1292
1082	$_->change_map_light ($change) for values %cf::MAP;	1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
1083	}	1295	}
1084		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303	}
		1304
1085	sub try_load_header($) {	1305	sub load_header_from($) {
1086	my ($path) = @_;	1306	my ($self, $path) = @_;
1087		1307
1088	utf8::encode $path;	1308	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
1090	or return;	1313	or return;
1091		1314
1092	my $map = cf::map::new	1315	$self->{load_path} = $path;
		1316
		1317	1
		1318	}
		1319
		1320	sub load_header_orig {
		1321	my ($self) = @_;
		1322
		1323	$self->load_header_from ($self->load_path)
		1324	}
		1325
		1326	sub load_header_temp {
		1327	my ($self) = @_;
		1328
		1329	$self->load_header_from ($self->save_path)
		1330	}
		1331
		1332	sub prepare_temp {
		1333	my ($self) = @_;
		1334
		1335	$self->last_access ((delete $self->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$self->{instantiate_time} = $cf::RUNTIME
		1339	if $self->{instantiate_time} > $cf::RUNTIME;
		1340	}
		1341
		1342	sub prepare_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->{load_original} = 1;
		1346	$self->{instantiate_time} = $cf::RUNTIME;
		1347	$self->last_access ($cf::RUNTIME);
		1348	$self->instantiate;
		1349	}
		1350
		1351	sub load_header {
		1352	my ($self) = @_;
		1353
		1354	if ($self->load_header_temp) {
		1355	$self->prepare_temp;
		1356	} else {
		1357	$self->load_header_orig
1093	or return;	1358	or return;
		1359	$self->prepare_orig;
		1360	}
1094		1361
1095	$map->load_header ($path)	1362	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1363	}
1102		1364
		1365	sub find;
1103	sub find_map {	1366	sub find {
1104	my ($path, $origin) = @_;	1367	my ($path, $origin) = @_;
1105		1368
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1369	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1370
		1371	cf::lock_wait "map_find:$path";
		1372
1111	$cf::MAP{$key} || do {	1373	$cf::MAP{$path} || do {
1112	# do it the slow way	1374	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1375	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1376	or return;
1127		1377
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1378	$map->{last_save} = $cf::RUNTIME;
1139		1379
1140	if ($map->should_reset) {	1380	$map->load_header
		1381	or return;
		1382
		1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1384	# doing this can freeze the server in a sync job, obviously
		1385	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1386	$map->reset;
1142	$map = find_map $path;	1387	undef $guard;
		1388	return find $path;
1143	}	1389	}
1144		1390
1145	$cf::MAP{$key} = $map	1391	$cf::MAP{$path} = $map
1146	}	1392	}
1147	}	1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
1148		1397
1149	sub load {	1398	sub load {
1150	my ($self) = @_;	1399	my ($self) = @_;
1151		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
		1403	my $path = $self->{path};
		1404	my $guard = cf::lock_acquire "map_load:$path";
		1405
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1406	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1407
1154	$self->in_memory (cf::MAP_LOADING);	1408	$self->in_memory (cf::MAP_LOADING);
1155		1409
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
1159	$self->load_objects ($self->{load_path}, 1)	1414	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1415	or return;
1161		1416
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1418	if delete $self->{load_original};
1164		1419
1165	if (my $uniq = $path->uniq_path) {	1420	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1421	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1422	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1423	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1424	$self->_load_objects ($uniq, 0);
1170	}	1425	}
1171	}	1426	}
		1427
		1428	Coro::cede;
1172		1429
1173	# now do the right thing for maps	1430	# now do the right thing for maps
1174	$self->link_multipart_objects;	1431	$self->link_multipart_objects;
1175		1432
1176	if ($self->{path}->is_style_map) {	1433	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1434	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1435	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1436	$self->update_buttons;
		1437	Coro::cede;
1183	$self->set_darkness_map;	1438	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1439	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1440	unless $self->difficulty;
		1441	Coro::cede;
1186	$self->activate;	1442	$self->activate;
1187	}	1443	}
1188		1444
		1445	$self->post_load;
		1446
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1447	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1448	}
1191		1449
1192	sub load_map_sync {	1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
		1461	my ($map) = @_;
		1462
		1463	my @diag; # diagonal neighbours
		1464
		1465	for (0 .. 3) {
		1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
		1471
		1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
		1475
		1476	for (@diag) {
		1477	my $neigh = find @$_
		1478	or next;
		1479	$neigh->load;
		1480	}
		1481	}
		1482
		1483	sub find_sync {
1193	my ($path, $origin) = @_;	1484	my ($path, $origin) = @_;
1194		1485
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1486	cf::sync_job { find $path, $origin }
		1487	}
1196		1488
1197	cf::sync_job {	1489	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1490	my ($map) = @_;
1199	or return;	1491
		1492	cf::sync_job { $map->load };
		1493	}
		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
1200	$map->load;	1513	$map->load;
1201	$map	1514
		1515	delete $MAP_PREFETCH{$path};
		1516	}
		1517	}
		1518	undef $MAP_PREFETCHER;
1202	}	1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
1203	}	1523	}
1204		1524
1205	sub save {	1525	sub save {
1206	my ($self) = @_;	1526	my ($self) = @_;
1207		1527
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1529
1211	$self->{last_save} = $cf::RUNTIME;	1530	$self->{last_save} = $cf::RUNTIME;
1212		1531
1213	return unless $self->dirty;	1532	return unless $self->dirty;
1214		1533
		1534	my $save = $self->save_path; utf8::encode $save;
		1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1536
1215	$self->{load_path} = $save;	1537	$self->{load_path} = $save;
1216		1538
1217	return if $self->{deny_save};	1539	return if $self->{deny_save};
1218		1540
		1541	local $self->{last_access} = $self->last_access;#d#
		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
		1546
1219	if ($uniq) {	1547	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1550	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1552	}
1225	}	1553	}
1226		1554
1227	sub swap_out {	1555	sub swap_out {
1228	my ($self) = @_;	1556	my ($self) = @_;
		1557
		1558	# save first because save cedes
		1559	$self->save;
		1560
		1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1562
1230	return if $self->players;	1563	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1565	return if $self->{deny_save};
1233		1566
1234	$self->save;
1235	$self->clear;	1567	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1568	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1569	}
1238		1570
1239	sub reset_at {	1571	sub reset_at {
1240	my ($self) = @_;	1572	my ($self) = @_;
1241		1573
1242	# TODO: safety, remove and allow resettable per-player maps	1574	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1576	return 1e99 if $self->{deny_reset};
1245		1577
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1580
1250	$time + $to	1581	$time + $to
1251	}	1582	}
1252		1583
1253	sub should_reset {	1584	sub should_reset {
1254	my ($self) = @_;	1585	my ($self) = @_;
1255		1586
1256	$self->reset_at <= $cf::RUNTIME	1587	$self->reset_at <= $cf::RUNTIME
1257	}	1588	}
1258		1589
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1590	sub reset {
1268	my ($self) = @_;	1591	my ($self) = @_;
1269		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
1270	return if $self->players;	1595	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1596	return if $self->isa ("ext::map_per_player");#d#
1272		1597
1273	warn "resetting map ", $self->path;#d#	1598	warn "resetting map ", $self->path;#d#
1274		1599
		1600	$self->in_memory (cf::MAP_SWAPPED);
		1601
		1602	# need to save uniques path
		1603	unless ($self->{deny_save}) {
		1604	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1605
		1606	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1607	if $uniq;
		1608	}
		1609
1275	delete $cf::MAP{$self->path};	1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
1276		1613
1277	$_->clear_links_to ($self) for values %cf::MAP;	1614	$_->clear_links_to ($self) for values %cf::MAP;
1278		1615
1279	$self->unlink_save;	1616	$self->unlink_save;
1280	$self->destroy;	1617	$self->destroy;
1281	}	1618	}
1282		1619
1283	sub customise_for {	1620	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1621
1286	if ($map->per_player) {	1622	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1623	my ($self) = @_;
1288	}
1289		1624
1290	$map	1625	delete $cf::MAP{$self->path};
1291	}
1292		1626
1293	sub emergency_save {	1627	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1628
1296	warn "enter emergency map save\n";	1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
		1631	$self->{deny_save} = 1;
		1632	$self->reset_timeout (1);
		1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1634
1298	cf::sync_job {	1635	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1636
1300	$_->save for values %cf::MAP;	1637	$self->reset; # polite request, might not happen
		1638	}
		1639
		1640	=item cf::map::unique_maps
		1641
		1642	Returns an arrayref of paths of all shared maps that have
		1643	instantiated unique items. May block.
		1644
		1645	=cut
		1646
		1647	sub unique_maps() {
		1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
		1650
		1651	my @paths;
		1652
		1653	for (@$files) {
		1654	utf8::decode $_;
		1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
1301	};	1659	}
1302		1660
1303	warn "end emergency map save\n";	1661	\@paths
1304	}	1662	}
1305		1663
1306	package cf;	1664	package cf;
1307		1665
1308	=back	1666	=back
1309		1667
		1668	=head3 cf::object
		1669
		1670	=cut
		1671
		1672	package cf::object;
		1673
		1674	=over 4
		1675
		1676	=item $ob->inv_recursive
		1677
		1678	Returns the inventory of the object _and_ their inventories, recursively.
		1679
		1680	=cut
		1681
		1682	sub inv_recursive_;
		1683	sub inv_recursive_ {
		1684	map { $_, inv_recursive_ $_->inv } @_
		1685	}
		1686
		1687	sub inv_recursive {
		1688	inv_recursive_ inv $_[0]
		1689	}
		1690
		1691	package cf;
		1692
		1693	=back
1310		1694
1311	=head3 cf::object::player	1695	=head3 cf::object::player
1312		1696
1313	=over 4	1697	=over 4
1314		1698
…		…
1350	(ref $cf::CFG{"may_$access"}	1734	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1735	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1736	: $cf::CFG{"may_$access"})
1353	}	1737	}
1354		1738
		1739	=item $player_object->enter_link
		1740
		1741	Freezes the player and moves him/her to a special map (C<{link}>).
		1742
		1743	The player should be reasonably safe there for short amounts of time. You
		1744	I<MUST> call C<leave_link> as soon as possible, though.
		1745
		1746	Will never block.
		1747
		1748	=item $player_object->leave_link ($map, $x, $y)
		1749
		1750	Moves the player out of the special C<{link}> map onto the specified
		1751	map. If the map is not valid (or omitted), the player will be moved back
		1752	to the location he/she was before the call to C<enter_link>, or, if that
		1753	fails, to the emergency map position.
		1754
		1755	Might block.
		1756
		1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
		1768
1355	sub cf::object::player::enter_link {	1769	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1770	my ($self) = @_;
1357		1771
1358	return if $self->map == $LINK_MAP;	1772	$self->deactivate_recursive;
1359		1773
		1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1775
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1777	if $self->map;
1362		1778
1363	$self->enter_map ($LINK_MAP, 20, 20);	1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1780	}
1366		1781
1367	sub cf::object::player::leave_link {	1782	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1783	my ($self, $map, $x, $y) = @_;
1369		1784
1370	my $link_pos = delete $self->{_link_pos};	1785	my $link_pos = delete $self->{_link_pos};
1371		1786
1372	unless ($map) {	1787	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1788	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1789	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1790	$map = cf::map::find $map;
1378		1791
1379	unless ($map) {	1792	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1793	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1794	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1795	or die "FATAL: cannot load emergency map\n";
1383	}	1796	}
1384	}	1797	}
1385		1798
1386	($x, $y) = (-1, -1)	1799	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1802	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1803	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1804	if $x <=0 && $y <= 0;
1392		1805
1393	$map->load;	1806	$map->load;
		1807	$map->load_diag;
1394		1808
		1809	return unless $self->contr->active;
1395	$self->activate_recursive;	1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1397	}	1814	}
1398		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($pl) = @_;
		1819
		1820	# abort map switching before logout
		1821	if ($pl->ob->{_link_pos}) {
		1822	cf::sync_job {
		1823	$pl->ob->leave_link
		1824	};
		1825	}
		1826	},
		1827	on_login => sub {
		1828	my ($pl) = @_;
		1829
		1830	# try to abort aborted map switching on player login :)
		1831	# should happen only on crashes
		1832	if ($pl->ob->{_link_pos}) {
		1833	$pl->ob->enter_link;
		1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
		1839	# we need this sleep as the login has a concurrent enter_exit running
		1840	# and this sleep increases chances of the player not ending up in scorn
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
1399	=item $player_object->goto_map ($map, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1400		1849
1401	=cut	1850	=cut
1402		1851
1403	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1405		1854
1406	$self->enter_link;	1855	$self->enter_link;
1407		1856
1408	(Coro::async {	1857	(async {
1409	$path = new cf::path $path;	1858	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1859	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1864
1417	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1866	})->prio (1);
1419	}	1867	}
1420		1868
…		…
1424		1872
1425	sub parse_random_map_params {	1873	sub parse_random_map_params {
1426	my ($spec) = @_;	1874	my ($spec) = @_;
1427		1875
1428	my $rmp = { # defaults	1876	my $rmp = { # defaults
1429	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1431	};	1881	};
1432		1882
1433	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1435		1885
…		…
1439	$rmp	1889	$rmp
1440	}	1890	}
1441		1891
1442	sub prepare_random_map {	1892	sub prepare_random_map {
1443	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		1896
1445	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	1899	# that depends on the exit object
1448		1900
1449	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1450		1902
1451	if ($exit->map) {	1903	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1456	}	1908	}
1457		1909
1458	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1459		1911
1460	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1462		1915
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	1917	aio_write $fh, 0, (length $data), $data, 0;
		1918	undef $fh;
		1919	aio_rename "$meta~", $meta;
1465		1920
1466	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	1922	$exit->msg (undef);
1468	}	1923	}
1469	}	1924	}
…		…
1471	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1473		1928
1474	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1475		1930
		1931	if ($exit->slaying eq "/!") {
		1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1933	cf::sync_job { prepare_random_map $exit };
		1934	}
		1935
		1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1937	my $hp = $exit->stats->hp;
		1938	my $sp = $exit->stats->sp;
		1939
1476	$self->enter_link;	1940	$self->enter_link;
1477		1941
1478	(Coro::async {	1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	1944	unless (eval {
1480		1945	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		1946
1487	1;	1947	1;
1488	}) {	1948	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	1950	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1493		1953
1494	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	1955	$self->leave_link;
1496	}	1956	}
…		…
1547	on_reply => sub {	2007	on_reply => sub {
1548	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
1549		2009
1550	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
1551	# get handled first	2011	# get handled first
1552	my $queue = delete $ns->{query_queue};	2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2014
1554	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2017
1556	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1557		2019
1558	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2021	if (@$queue) {
…		…
1563	}	2025	}
1564	}	2026	}
1565	},	2027	},
1566	);	2028	);
1567		2029
1568	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1569		2031
1570	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2034	or loss of connection).
1573		2035
1574	=cut	2036	=cut
1575		2037
1576	sub cf::client::coro {	2038	sub cf::client::async {
1577	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1578		2040
1579	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2042
1586	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1588	});	2045	});
1589		2046
…		…
1725	The parameter C<$family> should best start with the name of the extension	2182	The parameter C<$family> should best start with the name of the extension
1726	using it, it should be unique.	2183	using it, it should be unique.
1727		2184
1728	=over 4	2185	=over 4
1729		2186
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
1737		2188
1738	Returns a single value from the database	2189	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2190
1745	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
1746		2192
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2194
1758	=cut	2195	=cut
1759		2196
1760	our $DB;	2197	our $DB;
1761		2198
1762	{	2199	sub db_init {
		2200	unless ($DB) {
		2201	$DB = BDB::db_create $DB_ENV;
		2202
		2203	cf::sync_job {
		2204	eval {
		2205	$DB->set_flags (BDB::CHKSUM);
		2206
		2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2209	cf::cleanup "db_open(db): $!" if $!;
		2210	};
		2211	cf::cleanup "db_open(db): $@" if $@;
		2212	};
		2213
1763	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
		2215	if (stat $path) {
		2216	cf::sync_job {
		2217	my $pst = Storable::retrieve $path;
1764		2218
1765	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
1766	warn "loading database $path\n";#d# remove later	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1767	$DB = stat $path ? Storable::retrieve $path : { };	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
1768	}	2222	BDB::db_env_txn_checkpoint $DB_ENV;
1769		2223
1770	my $pid;	2224	unlink $path;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2225	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});
1793
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {
1800	@_ >= 2
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804
1805	sub db_put($$;$) {
1806	if (@_ >= 3) {
1807	$DB->{$_[0]}{$_[1]} = $_[2];
1808	} else {
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813
1814	cf::global->attach (
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	2226	}
1819	);	2227	}
		2228	}
		2229
		2230	sub db_get($$) {
		2231	my $key = "$_[0]/$_[1]";
		2232
		2233	cf::sync_job {
		2234	BDB::db_get $DB, undef, $key, my $data;
		2235
		2236	$! ? ()
		2237	: Compress::LZF::sthaw $data
		2238	}
		2239	}
		2240
		2241	sub db_put($$$) {
		2242	BDB::dbreq_pri 4;
		2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1820	}	2244	}
1821		2245
1822	#############################################################################	2246	#############################################################################
1823	# the server's main()	2247	# the server's init and main functions
		2248
		2249	sub init_resources {
		2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2251	or die "unable to load regions file\n";#d#
		2252	}
1824		2253
1825	sub cfg_load {	2254	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1827	or return;	2256	or return;
1828		2257
1829	local $/;	2258	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
		2260
		2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
		2266	if (exists $CFG{mlockall}) {
		2267	eval {
		2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2269	and die "WARNING: m(un)lockall failed: $!\n";
		2270	};
		2271	warn $@ if $@;
		2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
1831	}	2277	}
1832		2278
1833	sub main {	2279	sub main {
1834	# we must not ever block the main coroutine	2280	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2281	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2283	(async {
1838	Event::one_event;	2284	Event::one_event;
1839	})->();	2285	})->prio (Coro::PRIO_MAX);
1840	};	2286	};
1841		2287
1842	cfg_load;	2288	cfg_load;
1843	db_load;	2289	db_init;
1844	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1845	Event::loop;	2293	Event::loop;
1846	}	2294	}
1847		2295
1848	#############################################################################	2296	#############################################################################
1849	# initialisation	2297	# initialisation and cleanup
		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
		2347	sub post_cleanup {
		2348	my ($make_core) = @_;
		2349
		2350	warn Carp::longmess "post_cleanup backtrace"
		2351	if $make_core;
		2352	}
1850		2353
1851	sub reload() {	2354	sub reload() {
1852	# can/must only be called in main	2355	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2356	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2357	warn "can only reload from main coroutine";
1855	return;	2358	return;
1856	}	2359	}
1857		2360
1858	warn "reloading...";	2361	warn "reloading...";
1859		2362
1860	local $FREEZE = 1;	2363	warn "entering sync_job";
		2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
1862		2369
1863	eval {	2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
1864	# if anything goes wrong in here, we should simply crash as we already saved	2373	# if anything goes wrong in here, we should simply crash as we already saved
1865		2374
1866	# cancel all watchers	2375	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2376	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2377	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2378	}
1870		2379
		2380	warn "flushing outstanding aio requests";
		2381	for (;;) {
		2382	BDB::flush;
		2383	IO::AIO::flush;
		2384	Coro::cede;
		2385	last unless IO::AIO::nreqs || BDB::nreqs;
		2386	warn "iterate...";
		2387	}
		2388
1871	# cancel all extension coros	2389	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2390	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2391	%EXT_CORO = ();
1874		2392
1875	# unload all extensions	2393	warn "removing commands";
1876	for (@exts) {	2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2401	warn "... unloading $pkg";
1878	unload_extension $_;	2402
		2403	if (my $cb = $pkg->can ("unload")) {
		2404	eval {
		2405	$cb->($pkg);
		2406	1
		2407	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2408	}
1880		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
1881	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2417
1885	warn "removing <$k>";	2418	warn "... unloading $k";
1886	delete $INC{$k};	2419	delete $INC{$k};
1887		2420
1888	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
1890		2423
…		…
1893	}	2426	}
1894		2427
1895	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
1896	}	2429	}
1897		2430
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		2434
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
1911		2437
1912	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2439	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
1915		2441
1916	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
1917	warn "reloading cf.pm";	2444	warn "reloading cf.pm";
1918	require cf;	2445	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2447
1921	# load config and database again	2448	warn "loading config and database again";
1922	cf::cfg_load;	2449	cf::cfg_load;
1923	cf::db_load;
1924		2450
1925	# load extensions
1926	warn "load extensions";	2451	warn "loading extensions";
1927	cf::load_extensions;	2452	cf::load_extensions;
1928		2453
1929	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
1930	warn "reattach";
1931	_global_reattach;	2455	_global_reattach;
1932	};	2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
1933		2458
1934	if ($@) {	2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
1935	warn $@;	2466	warn $@;
1936	warn "error while reloading, exiting.";	2467	warn "error while reloading, exiting.";
1937	exit 1;	2468	exit 1;
1938	}	2469	};
1939		2470
1940	warn "reloaded successfully";	2471	warn "reloaded";
1941	};	2472	};
1942		2473
1943	#############################################################################	2474	our $RELOAD_WATCHER; # used only during reload
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}
1985
1986	register "<global>", __PACKAGE__;
1987		2475
1988	register_command "reload" => sub {	2476	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
1990		2478
1991	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");	2480	$who->message ("reloading server.");
		2481
		2482	# doing reload synchronously and two reloads happen back-to-back,
		2483	# coro crashes during coro_state_free->destroy here.
		2484
		2485	$RELOAD_WATCHER ||= Event->timer (
		2486	reentrant => 0,
		2487	after => 0,
		2488	data => WF_AUTOCANCEL,
		2489	cb => sub {
1993	reload;	2490	reload;
1994	$who->message ("end of reload.");	2491	undef $RELOAD_WATCHER;
		2492	},
		2493	);
1995	}	2494	}
1996	};	2495	};
1997		2496
1998	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
		2498
		2499	my $bug_warning = 0;
1999		2500
2000	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2502	reentrant => 0,
		2503	parked => 1,
2002	prio => 0,	2504	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2505	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2506	data => WF_AUTOCANCEL,
2005	cb => sub {	2507	cb => sub {
2006	unless ($FREEZE) {	2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
2007	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	2517	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2518	$NEXT_TICK += $TICK;
		2519
		2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2521	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2522	Coro::async_pool {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	};
		2526	}
		2527
		2528	$WAIT_FOR_TICK->broadcast;
		2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2530
		2531	# my $AFTER = Event::time;
		2532	# warn $AFTER - $NOW;#d#
2012		2533
2013	# if we are delayed by four ticks or more, skip them all	2534	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2015		2536
2016	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
2018	},	2539	},
2019	);	2540	);
2020		2541
		2542	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2543	BDB::max_poll_time $TICK * 0.1;
2022		2544	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2545	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2546	fd => BDB::poll_fileno,
2025	poll => 'r',	2547	poll => 'r',
2026	prio => 5,	2548	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2549	data => WF_AUTOCANCEL,
2033	after => 0,	2550	cb => \&BDB::poll_cb,
2034	interval => 10,	2551	);
2035	cb => sub {	2552	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2553
2037	write_runtime	2554	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	2555	my $status;
		2556	my $current = $Coro::current;
		2557	(
		2558	sub {
		2559	$status = $!;
		2560	$current->ready; undef $current;
		2561	},
		2562	sub {
		2563	Coro::schedule while defined $current;
		2564	$! = $status;
		2565	},
		2566	)
		2567	};
		2568
		2569	unless ($DB_ENV) {
		2570	$DB_ENV = BDB::db_env_create;
		2571
		2572	cf::sync_job {
		2573	eval {
		2574	BDB::db_env_open
		2575	$DB_ENV,
		2576	$BDB_ENV_DIR,
		2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2579	0666;
		2580
		2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2582
		2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2584	$DB_ENV->set_lk_detect;
		2585	};
		2586
		2587	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	2588	};
2040	},	2589	}
2041	);	2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
		2596	IO::AIO::max_poll_time $TICK * 0.1;
		2597	$AIO_POLL_WATCHER = Event->io (
		2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
		2601	poll => 'r',
		2602	prio => 6,
		2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
		2606
		2607	END { cf::emergency_save }
2042		2608
2043	1	2609	1
2044		2610

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