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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.205 by root, Mon Feb 5 18:29:20 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 Data::Dumper;
20	use Digest::MD5;	21	use Digest::MD5;
21	use Fcntl;	22	use Fcntl;
22	use IO::AIO 2.31 ();	23	use IO::AIO 2.32 ();
23	use YAML::Syck ();	24	use YAML::Syck ();
24	use Time::HiRes;	25	use Time::HiRes;
25		26
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		30
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
30		33
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	34	$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		35
35	our %COMMAND = ();	36	our %COMMAND = ();
36	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
38		43
39	our @EVENT;	44	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
41		46
42	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	51	our $NEXT_TICK;
45	our $NOW;	52	our $NOW;
		53	our $USE_FSYNC = 1; # use fsync to write maps - default off
46		54
47	our %CFG;	55	our %CFG;
48		56
49	our $UPTIME; $UPTIME ||= time;	57	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	58	our $RUNTIME;
51		59
		60	our %PLAYER; # all users
52	our %MAP; # all maps	61	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	62	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	63	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	64
		65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		67
		68	# used to convert map paths into valid unix filenames by replacing / by ∕
		69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		70
58	binmode STDOUT;	71	binmode STDOUT;
59	binmode STDERR;	72	binmode STDERR;
60		73
61	# read virtual server time, if available	74	# read virtual server time, if available
…		…
69	mkdir cf::localdir . "/" . cf::playerdir;	82	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	83	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	84	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	85	mkdir $RANDOM_MAPS;
73		86
74	# a special map that is always available	87	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		88
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	89	sub cf::map::normalise;
78		90
79	#############################################################################	91	#############################################################################
80		92
81	=head2 GLOBAL VARIABLES	93	=head2 GLOBAL VARIABLES
82		94
…		…
106		118
107	=item %cf::CFG	119	=item %cf::CFG
108		120
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	121	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	122	from wherever your confdir points to.
		123
		124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		125
		126	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		127	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		128	processing has been done. Call C<< ->wait >> on them to maximise the
		129	window of cpu time available, or simply to synchronise to the server tick.
111		130
112	=back	131	=back
113		132
114	=cut	133	=cut
115		134
…		…
119	utf8::encode $msg;	138	utf8::encode $msg;
120		139
121	$msg .= "\n"	140	$msg .= "\n"
122	unless $msg =~ /\n$/;	141	unless $msg =~ /\n$/;
123		142
124	LOG llevError, "cfperl: $msg";	143	LOG llevError, $msg;
125	};	144	};
126	}	145	}
127		146
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		166
148	$Event::DIED = sub {	167	$Event::DIED = sub {
149	warn "error in event callback: @_";	168	warn "error in event callback: @_";
150	};	169	};
151		170
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	171	=head2 UTILITY FUNCTIONS
157		172
158	=over 4	173	=over 4
159		174
		175	=item dumpval $ref
		176
160	=cut	177	=cut
		178
		179	sub dumpval {
		180	eval {
		181	local $SIG{__DIE__};
		182	my $d;
		183	if (1) {
		184	$d = new Data::Dumper([$_[0]], ["*var"]);
		185	$d->Terse(1);
		186	$d->Indent(2);
		187	$d->Quotekeys(0);
		188	$d->Useqq(1);
		189	#$d->Bless(...);
		190	$d->Seen($_[1]) if @_ > 1;
		191	$d = $d->Dump();
		192	}
		193	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		194	$d
		195	} || "[unable to dump $_[0]: '$@']";
		196	}
161		197
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	198	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		199
164	=item $ref = cf::from_json $json	200	=item $ref = cf::from_json $json
165		201
…		…
180		216
181	sub to_json($) {	217	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	219	JSON::Syck::Dump $_[0]
184	}	220	}
		221
		222	=item cf::lock_wait $string
		223
		224	Wait until the given lock is available. See cf::lock_acquire.
		225
		226	=item my $lock = cf::lock_acquire $string
		227
		228	Wait until the given lock is available and then acquires it and returns
		229	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		230	for example when the coroutine gets canceled), the lock is automatically
		231	returned.
		232
		233	Lock names should begin with a unique identifier (for example, cf::map::find
		234	uses map_find and cf::map::load uses map_load).
		235
		236	=cut
		237
		238	our %LOCK;
		239
		240	sub lock_wait($) {
		241	my ($key) = @_;
		242
		243	# wait for lock, if any
		244	while ($LOCK{$key}) {
		245	push @{ $LOCK{$key} }, $Coro::current;
		246	Coro::schedule;
		247	}
		248	}
		249
		250	sub lock_acquire($) {
		251	my ($key) = @_;
		252
		253	# wait, to be sure we are not locked
		254	lock_wait $key;
		255
		256	$LOCK{$key} = [];
		257
		258	Coro::guard {
		259	# wake up all waiters, to be on the safe side
		260	$_->ready for @{ delete $LOCK{$key} };
		261	}
		262	}
		263
		264	sub freeze_mainloop {
		265	return unless $TICK_WATCHER->is_active;
		266
		267	my $guard = Coro::guard {
		268	$TICK_WATCHER->start;
		269	$WRITE_RUNTIME_WATCHER->start;
		270	};
		271	$WRITE_RUNTIME_WATCHER->stop;
		272	$TICK_WATCHER->stop;
		273	$guard
		274	}
		275
		276	=item cf::async { BLOCK }
		277
		278	Currently the same as Coro::async_pool, meaning you cannot use
		279	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		280	thing you are allowed to do is call C<prio> on it.
		281
		282	=cut
		283
		284	BEGIN { *async = \&Coro::async_pool }
185		285
186	=item cf::sync_job { BLOCK }	286	=item cf::sync_job { BLOCK }
187		287
188	The design of crossfire+ requires that the main coro ($Coro::main) is	288	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	289	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	303	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	304	# till the operation succeeds, freezing the server :/
205		305
206	# TODO: use suspend/resume instead	306	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	307	# (but this is cancel-safe)
208	local $FREEZE = 1;	308	my $freeze_guard = freeze_mainloop;
209		309
210	my $busy = 1;	310	my $busy = 1;
211	my @res;	311	my @res;
212		312
213	(Coro::async {	313	(async {
214	@res = eval { $job->() };	314	@res = eval { $job->() };
215	warn $@ if $@;	315	warn $@ if $@;
216	undef $busy;	316	undef $busy;
217	})->prio (Coro::PRIO_MAX);	317	})->prio (Coro::PRIO_MAX);
218		318
219	while ($busy) {	319	while ($busy) {
220	Coro::cede_notself;	320	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	321	}
223		322
224	wantarray ? @res : $res[0]	323	wantarray ? @res : $res[0]
225	} else {	324	} else {
226	# we are in another coroutine, how wonderful, everything just works	325	# we are in another coroutine, how wonderful, everything just works
227		326
228	$job->()	327	$job->()
229	}	328	}
230	}	329	}
231		330
232	=item $coro = cf::coro { BLOCK }	331	=item $coro = cf::async_ext { BLOCK }
233		332
234	Creates and returns a new coro. This coro is automcatially being canceled	333	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	334	extension calling this is being unloaded.
236		335
237	=cut	336	=cut
238		337
239	sub coro(&) {	338	sub async_ext(&) {
240	my $cb = shift;	339	my $cb = shift;
241		340
242	my $coro; $coro = async {	341	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		342
249	$coro->on_destroy (sub {	343	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	344	delete $EXT_CORO{$coro+0};
251	});	345	});
252	$EXT_CORO{$coro+0} = $coro;	346	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	352	my $runtime = cf::localdir . "/runtime";
259		353
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	355	or return;
262		356
		357	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	358	# 10 is the runtime save interval, for a monotonic clock
		359	# 60 allows for the watchdog to kill the server.
		360
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	361	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	362	and return;
266		363
		364	# always fsync - this file is important
267	aio_fsync $fh	365	aio_fsync $fh
268	and return;	366	and return;
269		367
270	close $fh	368	close $fh
271	or return;	369	or return;
…		…
277	}	375	}
278		376
279	=back	377	=back
280		378
281	=cut	379	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		380
393	#############################################################################	381	#############################################################################
394		382
395	=head2 ATTACHABLE OBJECTS	383	=head2 ATTACHABLE OBJECTS
396		384
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	510	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	511	our @CB_MAP = ();
524		512
525	my %attachment;	513	my %attachment;
526		514
		515	sub cf::attachable::thawer_merge {
		516	# simply override everything except _meta
		517	local $_[0]{_meta};
		518	%{$_[0]} = %{$_[1]};
		519	}
		520
527	sub _attach_cb($$$$) {	521	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	522	my ($registry, $event, $prio, $cb) = @_;
529		523
530	use sort 'stable';	524	use sort 'stable';
531		525
…		…
702	# object support	696	# object support
703		697
704	sub reattach {	698	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	699	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	700	my ($obj) = @_;
		701
		702	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		703
708	my $registry = $obj->registry;	704	my $registry = $obj->registry;
709		705
710	@$registry = ();	706	@$registry = ();
711		707
…		…
758	$filename, length $$rdata, scalar @$objs;	754	$filename, length $$rdata, scalar @$objs;
759		755
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	757	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	759	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	760	close $fh;
765		761
766	if (@$objs) {	762	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	765	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	766	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	767	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	768	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	769	aio_rename "$filename.pst~", "$filename.pst";
774	}	770	}
775	} else {	771	} else {
776	aio_unlink "$filename.pst";	772	aio_unlink "$filename.pst";
…		…
782	}	778	}
783	} else {	779	} else {
784	aio_unlink $filename;	780	aio_unlink $filename;
785	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
786	}	782	}
		783
		784	#d##TODO# nuke non .map-files if exist
		785	if ($filename =~ s/\.map$//) {
		786	aio_unlink $filename;
		787	aio_unlink "$filename.pst";
		788	}
787	}	789	}
788	}	790	}
789		791
790	sub object_freezer_as_string {	792	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	793	my ($rdata, $objs) = @_;
…		…
797		799
798	sub object_thawer_load {	800	sub object_thawer_load {
799	my ($filename) = @_;	801	my ($filename) = @_;
800		802
801	my ($data, $av);	803	my ($data, $av);
		804
		805	#d#TODO remove .map if file does not exist
		806	aio_stat $filename and $filename =~ s/\.map$//;
802		807
803	(aio_load $filename, $data) >= 0	808	(aio_load $filename, $data) >= 0
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	#d#TODO remove .map and also nuke
		1305	$save =~ s/\.map// or return;#d#
		1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1308	}
		1309
1085	sub try_load_header($) {	1310	sub load_header_from($) {
1086	my ($path) = @_;	1311	my ($self, $path) = @_;
1087		1312
1088	utf8::encode $path;	1313	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1314	#aio_open $path, O_RDONLY, 0
		1315	# or return;
		1316
		1317	$self->_load_header ($path)
1090	or return;	1318	or return;
1091		1319
1092	my $map = cf::map::new	1320	$self->{load_path} = $path;
		1321
		1322	1
		1323	}
		1324
		1325	sub load_header_orig {
		1326	my ($self) = @_;
		1327
		1328	$self->load_header_from ($self->load_path)
		1329	}
		1330
		1331	sub load_header_temp {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->save_path)
		1335	}
		1336
		1337	sub prepare_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->last_access ((delete $self->{last_access})
		1341	|| $cf::RUNTIME); #d#
		1342	# safety
		1343	$self->{instantiate_time} = $cf::RUNTIME
		1344	if $self->{instantiate_time} > $cf::RUNTIME;
		1345	}
		1346
		1347	sub prepare_orig {
		1348	my ($self) = @_;
		1349
		1350	$self->{load_original} = 1;
		1351	$self->{instantiate_time} = $cf::RUNTIME;
		1352	$self->last_access ($cf::RUNTIME);
		1353	$self->instantiate;
		1354	}
		1355
		1356	sub load_header {
		1357	my ($self) = @_;
		1358
		1359	if ($self->load_header_temp) {
		1360	$self->prepare_temp;
		1361	} else {
		1362	$self->load_header_orig
1093	or return;	1363	or return;
		1364	$self->prepare_orig;
		1365	}
1094		1366
1095	$map->load_header ($path)	1367	1
1096	or return;
1097
1098	$map->{load_path} = $path;
1099
1100	$map
1101	}	1368	}
1102		1369
		1370	sub find;
1103	sub find_map {	1371	sub find {
1104	my ($path, $origin) = @_;	1372	my ($path, $origin) = @_;
1105		1373
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1374	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1375
		1376	cf::lock_wait "map_find:$path";
		1377
1111	$cf::MAP{$key} || do {	1378	$cf::MAP{$path} || do {
1112	# do it the slow way	1379	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1380	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;	1381	or return;
1127		1382
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);	1383	$map->{last_save} = $cf::RUNTIME;
1139		1384
1140	if ($map->should_reset) {	1385	$map->load_header
		1386	or return;
		1387
		1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1389	# doing this can freeze the server in a sync job, obviously
		1390	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1391	$map->reset;
1142	$map = find_map $path;	1392	undef $guard;
		1393	return find $path;
1143	}	1394	}
1144		1395
1145	$cf::MAP{$key} = $map	1396	$cf::MAP{$path} = $map
1146	}	1397	}
1147	}	1398	}
		1399
		1400	sub pre_load { }
		1401	sub post_load { }
1148		1402
1149	sub load {	1403	sub load {
1150	my ($self) = @_;	1404	my ($self) = @_;
1151		1405
		1406	local $self->{deny_reset} = 1; # loading can take a long time
		1407
		1408	my $path = $self->{path};
		1409	my $guard = cf::lock_acquire "map_load:$path";
		1410
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1411	return if $self->in_memory != cf::MAP_SWAPPED;
1153		1412
1154	$self->in_memory (cf::MAP_LOADING);	1413	$self->in_memory (cf::MAP_LOADING);
1155		1414
1156	my $path = $self->{path};
1157
1158	$self->alloc;	1415	$self->alloc;
		1416
		1417	$self->pre_load;
		1418
1159	$self->load_objects ($self->{load_path}, 1)	1419	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1420	or return;
1161		1421
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1423	if delete $self->{load_original};
1164		1424
1165	if (my $uniq = $path->uniq_path) {	1425	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1426	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1427	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1428	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1429	$self->_load_objects ($uniq, 0);
1170	}	1430	}
1171	}	1431	}
		1432
		1433	Coro::cede;
1172		1434
1173	# now do the right thing for maps	1435	# now do the right thing for maps
1174	$self->link_multipart_objects;	1436	$self->link_multipart_objects;
1175		1437
1176	if ($self->{path}->is_style_map) {	1438	unless ($self->{deny_activate}) {
1177	$self->{deny_save} = 1;	1439	$self->decay_objects;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;	1440	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;	1441	$self->update_buttons;
		1442	Coro::cede;
1183	$self->set_darkness_map;	1443	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1444	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1445	unless $self->difficulty;
		1446	Coro::cede;
1186	$self->activate;	1447	$self->activate;
1187	}	1448	}
1188		1449
		1450	$self->post_load;
		1451
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1452	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1453	}
1191		1454
1192	sub load_map_sync {	1455	sub customise_for {
		1456	my ($self, $ob) = @_;
		1457
		1458	return find "~" . $ob->name . "/" . $self->{path}
		1459	if $self->per_player;
		1460
		1461	$self
		1462	}
		1463
		1464	# find and load all maps in the 3x3 area around a map
		1465	sub load_diag {
		1466	my ($map) = @_;
		1467
		1468	my @diag; # diagonal neighbours
		1469
		1470	for (0 .. 3) {
		1471	my $neigh = $map->tile_path ($_)
		1472	or next;
		1473	$neigh = find $neigh, $map
		1474	or next;
		1475	$neigh->load;
		1476
		1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1479	}
		1480
		1481	for (@diag) {
		1482	my $neigh = find @$_
		1483	or next;
		1484	$neigh->load;
		1485	}
		1486	}
		1487
		1488	sub find_sync {
1193	my ($path, $origin) = @_;	1489	my ($path, $origin) = @_;
1194		1490
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1491	cf::sync_job { find $path, $origin }
		1492	}
1196		1493
1197	cf::sync_job {	1494	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1495	my ($map) = @_;
1199	or return;	1496
		1497	cf::sync_job { $map->load };
		1498	}
		1499
		1500	our %MAP_PREFETCH;
		1501	our $MAP_PREFETCHER = undef;
		1502
		1503	sub find_async {
		1504	my ($path, $origin) = @_;
		1505
		1506	$path = normalise $path, $origin && $origin->{path};
		1507
		1508	if (my $map = $cf::MAP{$path}) {
		1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1510	}
		1511
		1512	undef $MAP_PREFETCH{$path};
		1513	$MAP_PREFETCHER ||= cf::async {
		1514	while (%MAP_PREFETCH) {
		1515	for my $path (keys %MAP_PREFETCH) {
		1516	my $map = find $path
		1517	or next;
1200	$map->load;	1518	$map->load;
1201	$map	1519
		1520	delete $MAP_PREFETCH{$path};
		1521	}
		1522	}
		1523	undef $MAP_PREFETCHER;
1202	}	1524	};
		1525	$MAP_PREFETCHER->prio (6);
		1526
		1527	()
1203	}	1528	}
1204		1529
1205	sub save {	1530	sub save {
1206	my ($self) = @_;	1531	my ($self) = @_;
1207		1532
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1533	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1534
1211	$self->{last_save} = $cf::RUNTIME;	1535	$self->{last_save} = $cf::RUNTIME;
1212		1536
1213	return unless $self->dirty;	1537	return unless $self->dirty;
1214		1538
		1539	my $save = $self->save_path; utf8::encode $save;
		1540	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1541
1215	$self->{load_path} = $save;	1542	$self->{load_path} = $save;
1216		1543
1217	return if $self->{deny_save};	1544	return if $self->{deny_save};
1218		1545
		1546	local $self->{last_access} = $self->last_access;#d#
		1547
		1548	cf::async {
		1549	$_->contr->save for $self->players;
		1550	};
		1551
1219	if ($uniq) {	1552	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1554	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1555	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1556	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1557	}
1225	}	1558	}
1226		1559
1227	sub swap_out {	1560	sub swap_out {
1228	my ($self) = @_;	1561	my ($self) = @_;
		1562
		1563	# save first because save cedes
		1564	$self->save;
		1565
		1566	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1567
1230	return if $self->players;	1568	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1569	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1570	return if $self->{deny_save};
1233		1571
1234	$self->save;
1235	$self->clear;	1572	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1573	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1574	}
1238		1575
1239	sub reset_at {	1576	sub reset_at {
1240	my ($self) = @_;	1577	my ($self) = @_;
1241		1578
1242	# TODO: safety, remove and allow resettable per-player maps	1579	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1581	return 1e99 if $self->{deny_reset};
1245		1582
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1585
1250	$time + $to	1586	$time + $to
1251	}	1587	}
1252		1588
1253	sub should_reset {	1589	sub should_reset {
1254	my ($self) = @_;	1590	my ($self) = @_;
1255		1591
1256	$self->reset_at <= $cf::RUNTIME	1592	$self->reset_at <= $cf::RUNTIME
1257	}	1593	}
1258		1594
1259	sub unlink_save {
1260	my ($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 rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	1595	sub reset {
1281	my ($self) = @_;	1596	my ($self) = @_;
1282		1597
		1598	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1599
1283	return if $self->players;	1600	return if $self->players;
1284	return if $self->{path}{user_rel};#d#	1601	return if $self->isa ("ext::map_per_player");#d#
1285		1602
1286	warn "resetting map ", $self->path;#d#	1603	warn "resetting map ", $self->path;#d#
1287		1604
1288	delete $cf::MAP{$self->path};	1605	delete $cf::MAP{$self->path};
		1606
		1607	$self->in_memory (cf::MAP_SWAPPED);
		1608	$self->clear;
1289		1609
1290	$_->clear_links_to ($self) for values %cf::MAP;	1610	$_->clear_links_to ($self) for values %cf::MAP;
1291		1611
1292	$self->unlink_save;	1612	$self->unlink_save;
1293	$self->destroy;	1613	$self->destroy;
1294	}	1614	}
1295		1615
1296	sub customise_for {	1616	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1617
1299	if ($map->per_player) {	1618	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1619	my ($self) = @_;
1301	}
1302		1620
1303	$map	1621	delete $cf::MAP{$self->path};
1304	}
1305		1622
1306	sub emergency_save {	1623	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		1624
1309	warn "enter emergency map save\n";	1625	bless $self, "cf::map";
		1626	delete $self->{deny_reset};
		1627	$self->{deny_save} = 1;
		1628	$self->reset_timeout (1);
		1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		1630
1311	cf::sync_job {	1631	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";	1632
1313	$_->save for values %cf::MAP;	1633	$self->reset; # polite request, might not happen
		1634	}
		1635
		1636	=item cf::map::unique_maps
		1637
		1638	Returns an arrayref of paths of all shared maps that have
		1639	instantiated unique items. May block.
		1640
		1641	=cut
		1642
		1643	sub unique_maps() {
		1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1645	or return;
		1646
		1647	my @paths;
		1648
		1649	for (@$files) {
		1650	utf8::decode $_;
		1651	next if /\.pst$/;
		1652	next unless /^$PATH_SEP/o;
		1653
		1654	push @paths, cf::map::normalise $_;
1314	};	1655	}
1315		1656
1316	warn "end emergency map save\n";	1657	\@paths
1317	}	1658	}
1318		1659
1319	package cf;	1660	package cf;
1320		1661
1321	=back	1662	=back
1322		1663
		1664	=head3 cf::object
		1665
		1666	=cut
		1667
		1668	package cf::object;
		1669
		1670	=over 4
		1671
		1672	=item $ob->inv_recursive
		1673
		1674	Returns the inventory of the object _and_ their inventories, recursively.
		1675
		1676	=cut
		1677
		1678	sub inv_recursive_;
		1679	sub inv_recursive_ {
		1680	map { $_, inv_recursive_ $_->inv } @_
		1681	}
		1682
		1683	sub inv_recursive {
		1684	inv_recursive_ inv $_[0]
		1685	}
		1686
		1687	package cf;
		1688
		1689	=back
1323		1690
1324	=head3 cf::object::player	1691	=head3 cf::object::player
1325		1692
1326	=over 4	1693	=over 4
1327		1694
…		…
1363	(ref $cf::CFG{"may_$access"}	1730	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1731	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	1732	: $cf::CFG{"may_$access"})
1366	}	1733	}
1367		1734
		1735	=item $player_object->enter_link
		1736
		1737	Freezes the player and moves him/her to a special map (C<{link}>).
		1738
		1739	The player should be reasonably safe there for short amounts of time. You
		1740	I<MUST> call C<leave_link> as soon as possible, though.
		1741
		1742	Will never block.
		1743
		1744	=item $player_object->leave_link ($map, $x, $y)
		1745
		1746	Moves the player out of the special C<{link}> map onto the specified
		1747	map. If the map is not valid (or omitted), the player will be moved back
		1748	to the location he/she was before the call to C<enter_link>, or, if that
		1749	fails, to the emergency map position.
		1750
		1751	Might block.
		1752
		1753	=cut
		1754
		1755	sub link_map {
		1756	unless ($LINK_MAP) {
		1757	$LINK_MAP = cf::map::find "{link}"
		1758	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1759	$LINK_MAP->load;
		1760	}
		1761
		1762	$LINK_MAP
		1763	}
		1764
1368	sub cf::object::player::enter_link {	1765	sub cf::object::player::enter_link {
1369	my ($self) = @_;	1766	my ($self) = @_;
1370		1767
1371	return if $self->map == $LINK_MAP;	1768	$self->deactivate_recursive;
1372		1769
		1770	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1771
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;	1773	if $self->map;
1375		1774
1376	$self->enter_map ($LINK_MAP, 20, 20);	1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1377	$self->deactivate_recursive;
1378	}	1776	}
1379		1777
1380	sub cf::object::player::leave_link {	1778	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	1779	my ($self, $map, $x, $y) = @_;
1382		1780
1383	my $link_pos = delete $self->{_link_pos};	1781	my $link_pos = delete $self->{_link_pos};
1384		1782
1385	unless ($map) {	1783	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	1784	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	1785	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	1786	$map = cf::map::find $map;
1391		1787
1392	unless ($map) {	1788	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	1789	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	1790	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	1791	or die "FATAL: cannot load emergency map\n";
1396	}	1792	}
1397	}	1793	}
1398		1794
1399	($x, $y) = (-1, -1)	1795	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	1798	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	1799	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	1800	if $x <=0 && $y <= 0;
1405		1801
1406	$map->load;	1802	$map->load;
		1803	$map->load_diag;
1407		1804
		1805	return unless $self->contr->active;
1408	$self->activate_recursive;	1806	$self->activate_recursive;
1409	$self->enter_map ($map, $x, $y);	1807	$self->enter_map ($map, $x, $y);
1410	}	1808	}
1411		1809
		1810	cf::player->attach (
		1811	on_logout => sub {
		1812	my ($pl) = @_;
		1813
		1814	# abort map switching before logout
		1815	if ($pl->ob->{_link_pos}) {
		1816	cf::sync_job {
		1817	$pl->ob->leave_link
		1818	};
		1819	}
		1820	},
		1821	on_login => sub {
		1822	my ($pl) = @_;
		1823
		1824	# try to abort aborted map switching on player login :)
		1825	# should happen only on crashes
		1826	if ($pl->ob->{_link_pos}) {
		1827	$pl->ob->enter_link;
		1828	(async {
		1829	# we need this sleep as the login has a concurrent enter_exit running
		1830	# and this sleep increases chances of the player not ending up in scorn
		1831	$pl->ob->reply (undef,
		1832	"There was an internal problem at your last logout, "
		1833	. "the server will try to bring you to your intended destination in a second.",
		1834	cf::NDI_RED);
		1835	Coro::Timer::sleep 1;
		1836	$pl->ob->leave_link;
		1837	})->prio (2);
		1838	}
		1839	},
		1840	);
		1841
1412	=item $player_object->goto_map ($map, $x, $y)	1842	=item $player_object->goto ($path, $x, $y)
1413		1843
1414	=cut	1844	=cut
1415		1845
1416	sub cf::object::player::goto_map {	1846	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	1847	my ($self, $path, $x, $y) = @_;
1418		1848
1419	$self->enter_link;	1849	$self->enter_link;
1420		1850
1421	(Coro::async {	1851	(async {
1422	$path = new cf::path $path;	1852	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	1853	my $map = cf::map::find $path;
1425	$map = $map->customise_for ($self) if $map;	1854	$map = $map->customise_for ($self) if $map;
1426
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	1855	$map
		1856	} or
		1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1429		1858
1430	$self->leave_link ($map, $x, $y);	1859	$self->leave_link ($map, $x, $y);
1431	})->prio (1);	1860	})->prio (1);
1432	}	1861	}
1433		1862
…		…
1437		1866
1438	sub parse_random_map_params {	1867	sub parse_random_map_params {
1439	my ($spec) = @_;	1868	my ($spec) = @_;
1440		1869
1441	my $rmp = { # defaults	1870	my $rmp = { # defaults
1442	xsize => 10,	1871	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	1872	ysize => (cf::rndm 15, 40),
		1873	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1874	#layout => string,
1444	};	1875	};
1445		1876
1446	for (split /\n/, $spec) {	1877	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	1878	my ($k, $v) = split /\s+/, $_, 2;
1448		1879
…		…
1452	$rmp	1883	$rmp
1453	}	1884	}
1454		1885
1455	sub prepare_random_map {	1886	sub prepare_random_map {
1456	my ($exit) = @_;	1887	my ($exit) = @_;
		1888
		1889	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		1890
1458	# all this does is basically replace the /! path by	1891	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	1892	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	1893	# that depends on the exit object
1461		1894
1462	my $rmp = parse_random_map_params $exit->msg;	1895	my $rmp = parse_random_map_params $exit->msg;
1463		1896
1464	if ($exit->map) {	1897	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	1898	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	1899	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	1900	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	1901	$rmp->{origin_y} = $exit->y;
1469	}	1902	}
1470		1903
1471	$rmp->{random_seed} ||= $exit->random_seed;	1904	$rmp->{random_seed} ||= $exit->random_seed;
1472		1905
1473	my $data = cf::to_json $rmp;	1906	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	1907	my $md5 = Digest::MD5::md5_hex $data;
		1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1475		1909
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	1911	aio_write $fh, 0, (length $data), $data, 0;
		1912	undef $fh;
		1913	aio_rename "$meta~", $meta;
1478		1914
1479	$exit->slaying ("?random/$md5");	1915	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	1916	$exit->msg (undef);
1481	}	1917	}
1482	}	1918	}
…		…
1484	sub cf::object::player::enter_exit {	1920	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	1921	my ($self, $exit) = @_;
1486		1922
1487	return unless $self->type == cf::PLAYER;	1923	return unless $self->type == cf::PLAYER;
1488		1924
		1925	if ($exit->slaying eq "/!") {
		1926	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1927	cf::sync_job { prepare_random_map $exit };
		1928	}
		1929
		1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1931	my $hp = $exit->stats->hp;
		1932	my $sp = $exit->stats->sp;
		1933
1489	$self->enter_link;	1934	$self->enter_link;
1490		1935
1491	(Coro::async {	1936	(async {
		1937	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	1938	unless (eval {
1493		1939	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		1940
1500	1;	1941	1;
1501	}) {	1942	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	1943	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	1944	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	1945	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	1946	cf::NDI_UNIQUE | cf::NDI_RED);
1506		1947
1507	warn "ERROR in enter_exit: $@";	1948	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	1949	$self->leave_link;
1509	}	1950	}
…		…
1560	on_reply => sub {	2001	on_reply => sub {
1561	my ($ns, $msg) = @_;	2002	my ($ns, $msg) = @_;
1562		2003
1563	# this weird shuffling is so that direct followup queries	2004	# this weird shuffling is so that direct followup queries
1564	# get handled first	2005	# get handled first
1565	my $queue = delete $ns->{query_queue};	2006	my $queue = delete $ns->{query_queue}
		2007	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2008
1567	(shift @$queue)->[1]->($msg);	2009	(shift @$queue)->[1]->($msg);
		2010	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2011
1569	push @{ $ns->{query_queue} }, @$queue;	2012	push @{ $ns->{query_queue} }, @$queue;
1570		2013
1571	if (@{ $ns->{query_queue} } == @$queue) {	2014	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2015	if (@$queue) {
…		…
1576	}	2019	}
1577	}	2020	}
1578	},	2021	},
1579	);	2022	);
1580		2023
1581	=item $client->coro (\&cb)	2024	=item $client->async (\&cb)
1582		2025
1583	Create a new coroutine, running the specified callback. The coroutine will	2026	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2027	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2028	or loss of connection).
1586		2029
1587	=cut	2030	=cut
1588		2031
1589	sub cf::client::coro {	2032	sub cf::client::async {
1590	my ($self, $cb) = @_;	2033	my ($self, $cb) = @_;
1591		2034
1592	my $coro; $coro = async {	2035	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2036
1599	$coro->on_destroy (sub {	2037	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2038	delete $self->{_coro}{$coro+0};
1601	});	2039	});
1602		2040
…		…
1774		2212
1775	{	2213	{
1776	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
1777		2215
1778	sub db_load() {	2216	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };	2217	$DB = stat $path ? Storable::retrieve $path : { };
1781	}	2218	}
1782		2219
1783	my $pid;	2220	my $pid;
1784		2221
1785	sub db_save() {	2222	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;	2223	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {	2224	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;	2225	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";	2226	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;	2227	rename "$path~", $path;
…		…
1798	sub db_sync() {	2234	sub db_sync() {
1799	db_save if $dirty;	2235	db_save if $dirty;
1800	undef $dirty;	2236	undef $dirty;
1801	}	2237	}
1802		2238
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2239	my $idle = Event->idle (
1804	db_sync;	2240	reentrant => 0,
		2241	min => 10,
		2242	max => 20,
		2243	repeat => 0,
		2244	data => WF_AUTOCANCEL,
		2245	cb => \&db_sync,
1805	});	2246	);
1806		2247
1807	sub db_dirty() {	2248	sub db_dirty() {
1808	$dirty = 1;	2249	$dirty = 1;
1809	$idle->start;	2250	$idle->start;
1810	}	2251	}
…		…
1831	},	2272	},
1832	);	2273	);
1833	}	2274	}
1834		2275
1835	#############################################################################	2276	#############################################################################
1836	# the server's main()	2277	# the server's init and main functions
		2278
		2279	sub load_resources {
		2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2281	or die "unable to load regions file\n";#d#
		2282	}
1837		2283
1838	sub cfg_load {	2284	sub cfg_load {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2285	open my $fh, "<:utf8", cf::confdir . "/config"
1840	or return;	2286	or return;
1841		2287
1842	local $/;	2288	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2289	*CFG = YAML::Syck::Load <$fh>;
		2290
		2291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2292
		2293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2295
		2296	if (exists $CFG{mlockall}) {
		2297	eval {
		2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2299	and die "WARNING: m(un)lockall failed: $!\n";
		2300	};
		2301	warn $@ if $@;
		2302	}
		2303	}
		2304
		2305	sub init {
		2306	load_resources;
1844	}	2307	}
1845		2308
1846	sub main {	2309	sub main {
1847	# we must not ever block the main coroutine	2310	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2311	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2312	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2313	(async {
1851	Event::one_event;	2314	Event::one_event;
1852	})->();	2315	})->prio (Coro::PRIO_MAX);
1853	};	2316	};
1854		2317
1855	cfg_load;	2318	cfg_load;
1856	db_load;	2319	db_load;
1857	load_extensions;	2320	load_extensions;
		2321
		2322	$TICK_WATCHER->start;
1858	Event::loop;	2323	Event::loop;
1859	}	2324	}
1860		2325
1861	#############################################################################	2326	#############################################################################
1862	# initialisation	2327	# initialisation and cleanup
		2328
		2329	# install some emergency cleanup handlers
		2330	BEGIN {
		2331	for my $signal (qw(INT HUP TERM)) {
		2332	Event->signal (
		2333	reentrant => 0,
		2334	data => WF_AUTOCANCEL,
		2335	signal => $signal,
		2336	prio => 0,
		2337	cb => sub {
		2338	cf::cleanup "SIG$signal";
		2339	},
		2340	);
		2341	}
		2342	}
		2343
		2344	sub emergency_save() {
		2345	my $freeze_guard = cf::freeze_mainloop;
		2346
		2347	warn "enter emergency perl save\n";
		2348
		2349	cf::sync_job {
		2350	# use a peculiar iteration method to avoid tripping on perl
		2351	# refcount bugs in for. also avoids problems with players
		2352	# and maps saved/destroyed asynchronously.
		2353	warn "begin emergency player save\n";
		2354	for my $login (keys %cf::PLAYER) {
		2355	my $pl = $cf::PLAYER{$login} or next;
		2356	$pl->valid or next;
		2357	$pl->save;
		2358	}
		2359	warn "end emergency player save\n";
		2360
		2361	warn "begin emergency map save\n";
		2362	for my $path (keys %cf::MAP) {
		2363	my $map = $cf::MAP{$path} or next;
		2364	$map->valid or next;
		2365	$map->save;
		2366	}
		2367	warn "end emergency map save\n";
		2368	};
		2369
		2370	warn "leave emergency perl save\n";
		2371	}
1863		2372
1864	sub reload() {	2373	sub reload() {
1865	# can/must only be called in main	2374	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2375	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2376	warn "can only reload from main coroutine";
1868	return;	2377	return;
1869	}	2378	}
1870		2379
1871	warn "reloading...";	2380	warn "reloading...";
1872		2381
1873	local $FREEZE = 1;	2382	warn "cancelling server ticker";
		2383	$TICK_WATCHER->cancel;
		2384
1874	cf::emergency_save;	2385	cf::emergency_save;
1875		2386
1876	eval {	2387	eval {
1877	# if anything goes wrong in here, we should simply crash as we already saved	2388	# if anything goes wrong in here, we should simply crash as we already saved
1878		2389
1879	# cancel all watchers	2390	warn "syncing database to disk";
		2391	cf::db_sync;
		2392
		2393	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2394	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2395	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2396	}
1883		2397
		2398	warn "flushing outstanding aio requests";
		2399	for (;;) {
		2400	IO::AIO::flush;
		2401	Coro::cede;
		2402	last unless IO::AIO::nreqs;
		2403	warn "iterate...";
		2404	}
		2405
1884	# cancel all extension coros	2406	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2407	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2408	%EXT_CORO = ();
1887		2409
1888	# unload all extensions	2410	warn "removing commands";
1889	for (@exts) {	2411	%COMMAND = ();
		2412
		2413	warn "removing ext commands";
		2414	%EXTCMD = ();
		2415
		2416	warn "unloading/nuking all extensions";
		2417	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2418	warn "... unloading $pkg";
1891	unload_extension $_;	2419
		2420	if (my $cb = $pkg->can ("unload")) {
		2421	eval {
		2422	$cb->($pkg);
		2423	1
		2424	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2425	}
1893		2426
		2427	warn "... nuking $pkg";
		2428	Symbol::delete_package $pkg;
		2429	}
		2430
1894	# unload all modules loaded from $LIBDIR	2431	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2432	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2433	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2434
1898	warn "removing <$k>";	2435	warn "... unloading $k";
1899	delete $INC{$k};	2436	delete $INC{$k};
1900		2437
1901	$k =~ s/\.pm$//;	2438	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2439	$k =~ s/\//::/g;
1903		2440
…		…
1906	}	2443	}
1907		2444
1908	Symbol::delete_package $k;	2445	Symbol::delete_package $k;
1909	}	2446	}
1910		2447
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2448	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2449	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2451
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2452	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2453	delete $INC{"cf.pm"};
1924		2454
1925	# don't, removes xs symbols, too,	2455	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2456	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2457	#Symbol::delete_package __PACKAGE__;
1928		2458
1929	# reload cf.pm	2459	warn "unload completed, starting to reload now";
		2460
1930	warn "reloading cf.pm";	2461	warn "reloading cf.pm";
1931	require cf;	2462	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2464
1934	# load config and database again	2465	warn "loading config and database again";
1935	cf::cfg_load;	2466	cf::cfg_load;
1936	cf::db_load;	2467	cf::db_load;
1937		2468
1938	# load extensions
1939	warn "load extensions";	2469	warn "loading extensions";
1940	cf::load_extensions;	2470	cf::load_extensions;
1941		2471
1942	# reattach attachments to objects	2472	warn "reattaching attachments to objects/players";
1943	warn "reattach";
1944	_global_reattach;	2473	_global_reattach;
		2474	warn "reattaching attachments to maps";
		2475	reattach $_ for values %MAP;
		2476
		2477	warn "loading reloadable resources";
		2478	load_resources;
		2479
		2480	warn "restarting server ticker";
		2481
		2482	$TICK_WATCHER->start;
1945	};	2483	};
1946		2484
1947	if ($@) {	2485	if ($@) {
1948	warn $@;	2486	warn $@;
1949	warn "error while reloading, exiting.";	2487	warn "error while reloading, exiting.";
1950	exit 1;	2488	exit 1;
1951	}	2489	}
1952		2490
1953	warn "reloaded successfully";	2491	warn "reloaded";
1954	};	2492	};
1955		2493
1956	#############################################################################	2494	our $RELOAD_WATCHER; # used only during reload
1957
1958	unless ($LINK_MAP) {
1959	$LINK_MAP = cf::map::new;
1960
1961	$LINK_MAP->width (41);
1962	$LINK_MAP->height (41);
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,
1971	cb => sub {
1972	$_[0]->w->cancel;
1973
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});
1992
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}
1998
1999	register "<global>", __PACKAGE__;
2000		2495
2001	register_command "reload" => sub {	2496	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2497	my ($who, $arg) = @_;
2003		2498
2004	if ($who->flag (FLAG_WIZ)) {	2499	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");	2500	$who->message ("reloading server.");
		2501
		2502	# doing reload synchronously and two reloads happen back-to-back,
		2503	# coro crashes during coro_state_free->destroy here.
		2504
		2505	$RELOAD_WATCHER ||= Event->timer (
		2506	reentrant => 0,
		2507	after => 0,
		2508	data => WF_AUTOCANCEL,
		2509	cb => sub {
2006	reload;	2510	reload;
2007	$who->message ("end of reload.");	2511	undef $RELOAD_WATCHER;
		2512	},
		2513	);
2008	}	2514	}
2009	};	2515	};
2010		2516
2011	unshift @INC, $LIBDIR;	2517	unshift @INC, $LIBDIR;
		2518
		2519	my $bug_warning = 0;
2012		2520
2013	$TICK_WATCHER = Event->timer (	2521	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2522	reentrant => 0,
		2523	parked => 1,
2015	prio => 0,	2524	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2525	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2526	data => WF_AUTOCANCEL,
2018	cb => sub {	2527	cb => sub {
2019	unless ($FREEZE) {	2528	if ($Coro::current != $Coro::main) {
		2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2530	unless ++$bug_warning > 10;
		2531	return;
		2532	}
		2533
		2534	$NOW = Event::time;
		2535
2020	cf::server_tick; # one server iteration	2536	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2537	$RUNTIME += $TICK;
2022	}
2023
2024	$NEXT_TICK += $TICK;	2538	$NEXT_TICK += $TICK;
		2539
		2540	$WAIT_FOR_TICK->broadcast;
		2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2542
		2543	Event::sweep;
		2544	Coro::cede_notself;
		2545
		2546	# my $AFTER = Event::time;
		2547	# warn $AFTER - $NOW;#d#
2025		2548
2026	# if we are delayed by four ticks or more, skip them all	2549	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2028		2551
2029	$TICK_WATCHER->at ($NEXT_TICK);	2552	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2553	$TICK_WATCHER->start;
2031	},	2554	},
2032	);	2555	);
2033		2556
2034	IO::AIO::max_poll_time $TICK * 0.2;	2557	IO::AIO::max_poll_time $TICK * 0.1;
2035		2558
2036	Event->io (	2559	undef $Coro::AIO::WATCHER;
		2560	$AIO_POLL_WATCHER = Event->io (
		2561	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	2562	fd => IO::AIO::poll_fileno,
2038	poll => 'r',	2563	poll => 'r',
2039	prio => 5,	2564	prio => 6,
2040	data => WF_AUTOCANCEL,	2565	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,	2566	cb => \&IO::AIO::poll_cb,
2042	);	2567	);
2043		2568
2044	Event->timer (	2569	$WRITE_RUNTIME_WATCHER = Event->timer (
		2570	reentrant => 0,
2045	data => WF_AUTOCANCEL,	2571	data => WF_AUTOCANCEL,
2046	after => 0,	2572	after => 1,
2047	interval => 10,	2573	interval => 10,
2048	cb => sub {	2574	prio => 6, # keep it lowest so it acts like a watchdog
2049	(Coro::unblock_sub {	2575	cb => Coro::unblock_sub {
2050	write_runtime	2576	write_runtime
2051	or warn "ERROR: unable to write runtime file: $!";	2577	or warn "ERROR: unable to write runtime file: $!";
2052	})->();
2053	},	2578	},
2054	);	2579	);
2055		2580
		2581	END { cf::emergency_save }
		2582
2056	1	2583	1
2057		2584

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