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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.207 by root, Sun Feb 11 22:42:09 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;
25		27
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	28	use Event; $Event::Eval = 1; # no idea why this is required, but it is
27		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	33	$YAML::Syck::ImplicitUnicode = 1;
30		34
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	35	$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		36
35	our %COMMAND = ();	37	our %COMMAND = ();
36	our %COMMAND_TIME = ();	38	our %COMMAND_TIME = ();
		39
		40	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	41	our %EXTCMD = ();
		42	our %EXT_CORO = (); # coroutines bound to extensions
		43	our %EXT_MAP = (); # pluggable maps
38		44
39	our @EVENT;	45	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	46	our $LIBDIR = datadir . "/ext";
41		47
42	our $TICK = MAX_TIME * 1e-6;	48	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	49	our $TICK_WATCHER;
		50	our $AIO_POLL_WATCHER;
		51	our $WRITE_RUNTIME_WATCHER;
44	our $NEXT_TICK;	52	our $NEXT_TICK;
45	our $NOW;	53	our $NOW;
		54	our $USE_FSYNC = 1; # use fsync to write maps - default off
		55
		56	our $BDB_POLL_WATCHER;
		57	our $DB_ENV;
46		58
47	our %CFG;	59	our %CFG;
48		60
49	our $UPTIME; $UPTIME ||= time;	61	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	62	our $RUNTIME;
51		63
		64	our %PLAYER; # all users
52	our %MAP; # all maps	65	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	66	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	67	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	68	our $BDB_ENV_DIR = cf::localdir . "/db";
		69
		70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		72
		73	# used to convert map paths into valid unix filenames by replacing / by ∕
		74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		75
58	binmode STDOUT;	76	binmode STDOUT;
59	binmode STDERR;	77	binmode STDERR;
60		78
61	# read virtual server time, if available	79	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	86	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	87	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	88	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	89	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	90	mkdir $RANDOM_MAPS;
		91	mkdir $BDB_ENV_DIR;
73		92
74	# a special map that is always available	93	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		94
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	95	sub cf::map::normalise;
78		96
79	#############################################################################	97	#############################################################################
80		98
81	=head2 GLOBAL VARIABLES	99	=head2 GLOBAL VARIABLES
82		100
…		…
106		124
107	=item %cf::CFG	125	=item %cf::CFG
108		126
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	127	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	128	from wherever your confdir points to.
		129
		130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		131
		132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		134	processing has been done. Call C<< ->wait >> on them to maximise the
		135	window of cpu time available, or simply to synchronise to the server tick.
111		136
112	=back	137	=back
113		138
114	=cut	139	=cut
115		140
…		…
119	utf8::encode $msg;	144	utf8::encode $msg;
120		145
121	$msg .= "\n"	146	$msg .= "\n"
122	unless $msg =~ /\n$/;	147	unless $msg =~ /\n$/;
123		148
124	LOG llevError, "cfperl: $msg";	149	LOG llevError, $msg;
125	};	150	};
126	}	151	}
127		152
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		172
148	$Event::DIED = sub {	173	$Event::DIED = sub {
149	warn "error in event callback: @_";	174	warn "error in event callback: @_";
150	};	175	};
151		176
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	177	=head2 UTILITY FUNCTIONS
157		178
158	=over 4	179	=over 4
159		180
		181	=item dumpval $ref
		182
160	=cut	183	=cut
		184
		185	sub dumpval {
		186	eval {
		187	local $SIG{__DIE__};
		188	my $d;
		189	if (1) {
		190	$d = new Data::Dumper([$_[0]], ["*var"]);
		191	$d->Terse(1);
		192	$d->Indent(2);
		193	$d->Quotekeys(0);
		194	$d->Useqq(1);
		195	#$d->Bless(...);
		196	$d->Seen($_[1]) if @_ > 1;
		197	$d = $d->Dump();
		198	}
		199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		200	$d
		201	} || "[unable to dump $_[0]: '$@']";
		202	}
161		203
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	204	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		205
164	=item $ref = cf::from_json $json	206	=item $ref = cf::from_json $json
165		207
…		…
180		222
181	sub to_json($) {	223	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	225	JSON::Syck::Dump $_[0]
184	}	226	}
		227
		228	=item cf::lock_wait $string
		229
		230	Wait until the given lock is available. See cf::lock_acquire.
		231
		232	=item my $lock = cf::lock_acquire $string
		233
		234	Wait until the given lock is available and then acquires it and returns
		235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		236	for example when the coroutine gets canceled), the lock is automatically
		237	returned.
		238
		239	Lock names should begin with a unique identifier (for example, cf::map::find
		240	uses map_find and cf::map::load uses map_load).
		241
		242	=cut
		243
		244	our %LOCK;
		245
		246	sub lock_wait($) {
		247	my ($key) = @_;
		248
		249	# wait for lock, if any
		250	while ($LOCK{$key}) {
		251	push @{ $LOCK{$key} }, $Coro::current;
		252	Coro::schedule;
		253	}
		254	}
		255
		256	sub lock_acquire($) {
		257	my ($key) = @_;
		258
		259	# wait, to be sure we are not locked
		260	lock_wait $key;
		261
		262	$LOCK{$key} = [];
		263
		264	Coro::guard {
		265	# wake up all waiters, to be on the safe side
		266	$_->ready for @{ delete $LOCK{$key} };
		267	}
		268	}
		269
		270	sub freeze_mainloop {
		271	return unless $TICK_WATCHER->is_active;
		272
		273	my $guard = Coro::guard {
		274	$TICK_WATCHER->start;
		275	$WRITE_RUNTIME_WATCHER->start;
		276	};
		277	$WRITE_RUNTIME_WATCHER->stop;
		278	$TICK_WATCHER->stop;
		279	$guard
		280	}
		281
		282	=item cf::async { BLOCK }
		283
		284	Currently the same as Coro::async_pool, meaning you cannot use
		285	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		286	thing you are allowed to do is call C<prio> on it.
		287
		288	=cut
		289
		290	BEGIN { *async = \&Coro::async_pool }
185		291
186	=item cf::sync_job { BLOCK }	292	=item cf::sync_job { BLOCK }
187		293
188	The design of crossfire+ requires that the main coro ($Coro::main) is	294	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	295	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	303	=cut
198		304
199	sub sync_job(&) {	305	sub sync_job(&) {
200	my ($job) = @_;	306	my ($job) = @_;
201		307
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	308	if ($Coro::current == $Coro::main) {
		309	# this is the main coro, too bad, we have to block
		310	# till the operation succeeds, freezing the server :/
		311
212	# TODO: use suspend/resume instead	312	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	313	# (but this is cancel-safe)
		314	my $freeze_guard = freeze_mainloop;
		315
		316	my $busy = 1;
		317	my @res;
		318
		319	(async {
		320	@res = eval { $job->() };
		321	warn $@ if $@;
		322	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	323	})->prio (Coro::PRIO_MAX);
		324
215	while ($busy) {	325	while ($busy) {
216	Coro::cede_notself;	326	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	327	}
		328
		329	wantarray ? @res : $res[0]
219	} else {	330	} else {
220	$coro->join;	331	# we are in another coroutine, how wonderful, everything just works
		332
		333	$job->()
221	}	334	}
222
223	wantarray ? @res : $res[0]
224	}	335	}
225		336
226	=item $coro = cf::coro { BLOCK }	337	=item $coro = cf::async_ext { BLOCK }
227		338
228	Creates and returns a new coro. This coro is automcatially being canceled	339	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	340	extension calling this is being unloaded.
230		341
231	=cut	342	=cut
232		343
233	sub coro(&) {	344	sub async_ext(&) {
234	my $cb = shift;	345	my $cb = shift;
235		346
236	my $coro; $coro = async {	347	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		348
243	$coro->on_destroy (sub {	349	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	350	delete $EXT_CORO{$coro+0};
245	});	351	});
246	$EXT_CORO{$coro+0} = $coro;	352	$EXT_CORO{$coro+0} = $coro;
…		…
252	my $runtime = cf::localdir . "/runtime";	358	my $runtime = cf::localdir . "/runtime";
253		359
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	361	or return;
256		362
257	my $value = $cf::RUNTIME;	363	my $value = $cf::RUNTIME + 90 + 10;
		364	# 10 is the runtime save interval, for a monotonic clock
		365	# 60 allows for the watchdog to kill the server.
		366
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	368	and return;
260		369
		370	# always fsync - this file is important
261	aio_fsync $fh	371	aio_fsync $fh
262	and return;	372	and return;
263		373
264	close $fh	374	close $fh
265	or return;	375	or return;
…		…
271	}	381	}
272		382
273	=back	383	=back
274		384
275	=cut	385	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		386
387	#############################################################################	387	#############################################################################
388		388
389	=head2 ATTACHABLE OBJECTS	389	=head2 ATTACHABLE OBJECTS
390		390
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	516	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	517	our @CB_MAP = ();
518		518
519	my %attachment;	519	my %attachment;
520		520
		521	sub cf::attachable::thawer_merge {
		522	# simply override everything except _meta
		523	local $_[0]{_meta};
		524	%{$_[0]} = %{$_[1]};
		525	}
		526
521	sub _attach_cb($$$$) {	527	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	528	my ($registry, $event, $prio, $cb) = @_;
523		529
524	use sort 'stable';	530	use sort 'stable';
525		531
…		…
696	# object support	702	# object support
697		703
698	sub reattach {	704	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	705	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	706	my ($obj) = @_;
		707
		708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		709
702	my $registry = $obj->registry;	710	my $registry = $obj->registry;
703		711
704	@$registry = ();	712	@$registry = ();
705		713
…		…
752	$filename, length $$rdata, scalar @$objs;	760	$filename, length $$rdata, scalar @$objs;
753		761
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	763	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	765	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	766	close $fh;
759		767
760	if (@$objs) {	768	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	770	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	771	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	772	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	773	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	774	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	775	aio_rename "$filename.pst~", "$filename.pst";
768	}	776	}
769	} else {	777	} else {
770	aio_unlink "$filename.pst";	778	aio_unlink "$filename.pst";
…		…
776	}	784	}
777	} else {	785	} else {
778	aio_unlink $filename;	786	aio_unlink $filename;
779	aio_unlink "$filename.pst";	787	aio_unlink "$filename.pst";
780	}	788	}
		789
		790	#d##TODO# nuke non .map-files if exist
		791	if ($filename =~ s/\.map$//) {
		792	aio_unlink $filename;
		793	aio_unlink "$filename.pst";
		794	}
781	}	795	}
782	}	796	}
783		797
784	sub object_freezer_as_string {	798	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
791		805
792	sub object_thawer_load {	806	sub object_thawer_load {
793	my ($filename) = @_;	807	my ($filename) = @_;
794		808
795	my ($data, $av);	809	my ($data, $av);
		810
		811	#d#TODO remove .map if file does not exist
		812	aio_stat $filename and $filename =~ s/\.map$//;
796		813
797	(aio_load $filename, $data) >= 0	814	(aio_load $filename, $data) >= 0
798	or return;	815	or return;
799		816
800	unless (aio_stat "$filename.pst") {	817	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	818	(aio_load "$filename.pst", $av) >= 0
802	or return;	819	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	820	$av = eval { (Storable::thaw $av)->{objs} };
804	}	821	}
805		822
		823	warn sprintf "loading %s (%d)\n",
		824	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	825	return ($data, $av);
807	}	826	}
808		827
809	#############################################################################	828	#############################################################################
810	# command handling &c	829	# command handling &c
…		…
835	=cut	854	=cut
836		855
837	sub register_extcmd {	856	sub register_extcmd {
838	my ($name, $cb) = @_;	857	my ($name, $cb) = @_;
839		858
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	859	$EXTCMD{$name} = $cb;
844	}	860	}
845		861
846	cf::player->attach (	862	cf::player->attach (
847	on_command => sub {	863	on_command => sub {
848	my ($pl, $name, $params) = @_;	864	my ($pl, $name, $params) = @_;
…		…
861		877
862	my $msg = eval { from_json $buf };	878	my $msg = eval { from_json $buf };
863		879
864	if (ref $msg) {	880	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	882	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	883	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	884	}
869	}	885	}
870	} else {	886	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		889
874	cf::override;	890	cf::override;
875	},	891	},
876	);	892	);
877		893
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	894	sub load_extension {
885	my ($path) = @_;	895	my ($path) = @_;
886		896
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	898	my $base = $1;
889	my $pkg = $1;	899	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	900	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	901	$pkg = "ext::$pkg";
892		902
893	warn "loading '$path' into '$pkg'\n";	903	warn "... loading '$path' into '$pkg'\n";
894		904
895	open my $fh, "<:utf8", $path	905	open my $fh, "<:utf8", $path
896	or die "$path: $!";	906	or die "$path: $!";
897		907
898	my $source =	908	my $source =
899	"package $pkg; use strict; use utf8;\n"	909	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	910	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	911	. (do { local $/; <$fh> })
902	. "\n};\n1";	912	. "\n};\n1";
903		913
904	eval $source	914	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	915	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	916	: "extension disabled.\n";
907		917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	918	warn $@;
909	$ext_pkg{$base} = $pkg;	919	warn "mandatory extension failed to load, exiting.\n";
910		920	exit 1;
911	# no strict 'refs';	921	}
912	# @{"$pkg\::ISA"} = ext::;	922	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	923	}
927		924
928	# remove commands	925	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	926	}
953		927
954	sub load_extensions {	928	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	929	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	930	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	934	} or warn "$ext not loaded: $@";
961	}	935	}
962	}	936	}
963		937
964	#############################################################################	938	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		939
1002	=head2 CORE EXTENSIONS	940	=head2 CORE EXTENSIONS
1003		941
1004	Functions and methods that extend core crossfire objects.	942	Functions and methods that extend core crossfire objects.
1005		943
		944	=cut
		945
		946	package cf::player;
		947
		948	use Coro::AIO;
		949
1006	=head3 cf::player	950	=head3 cf::player
1007		951
1008	=over 4	952	=over 4
1009		953
1010	=item cf::player::exists $login	954	=item cf::player::find $login
1011		955
1012	Returns true when the given account exists.	956	Returns the given player object, loading it if necessary (might block).
1013		957
1014	=cut	958	=cut
1015		959
1016	sub cf::player::exists($) {	960	sub playerdir($) {
1017	cf::player::find $_[0]	961	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	962	. "/"
		963	. cf::playerdir
		964	. "/"
		965	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		966	}
		967
		968	sub path($) {
		969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		970
		971	(playerdir $login) . "/$login.pl"
		972	}
		973
		974	sub find_active($) {
		975	$cf::PLAYER{$_[0]}
		976	and $cf::PLAYER{$_[0]}->active
		977	and $cf::PLAYER{$_[0]}
		978	}
		979
		980	sub exists($) {
		981	my ($login) = @_;
		982
		983	$cf::PLAYER{$login}
		984	or cf::sync_job { !aio_stat path $login }
		985	}
		986
		987	sub find($) {
		988	return $cf::PLAYER{$_[0]} || do {
		989	my $login = $_[0];
		990
		991	my $guard = cf::lock_acquire "user_find:$login";
		992
		993	$cf::PLAYER{$_[0]} || do {
		994	my $pl = load_pl path $login
		995	or return;
		996	$cf::PLAYER{$login} = $pl
		997	}
		998	}
		999	}
		1000
		1001	sub save($) {
		1002	my ($pl) = @_;
		1003
		1004	return if $pl->{deny_save};
		1005
		1006	my $path = path $pl;
		1007	my $guard = cf::lock_acquire "user_save:$path";
		1008
		1009	return if $pl->{deny_save};
		1010
		1011	aio_mkdir playerdir $pl, 0770;
		1012	$pl->{last_save} = $cf::RUNTIME;
		1013
		1014	$pl->save_pl ($path);
		1015	Coro::cede;
		1016	}
		1017
		1018	sub new($) {
		1019	my ($login) = @_;
		1020
		1021	my $self = create;
		1022
		1023	$self->ob->name ($login);
		1024	$self->{deny_save} = 1;
		1025
		1026	$cf::PLAYER{$login} = $self;
		1027
		1028	$self
		1029	}
		1030
		1031	=item $pl->quit_character
		1032
		1033	Nukes the player without looking back. If logged in, the connection will
		1034	be destroyed. May block for a long time.
		1035
		1036	=cut
		1037
		1038	sub quit_character {
		1039	my ($pl) = @_;
		1040
		1041	$pl->{deny_save} = 1;
		1042	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1043
		1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1045	$pl->deactivate;
		1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1047	$pl->ns->destroy if $pl->ns;
		1048
		1049	my $path = playerdir $pl;
		1050	my $temp = "$path~$cf::RUNTIME~deleting~";
		1051	aio_rename $path, $temp;
		1052	delete $cf::PLAYER{$pl->ob->name};
		1053	$pl->destroy;
		1054	IO::AIO::aio_rmtree $temp;
		1055	}
		1056
		1057	=item cf::player::list_logins
		1058
		1059	Returns am arrayref of all valid playernames in the system, can take a
		1060	while and may block, so not sync_job-capable, ever.
		1061
		1062	=cut
		1063
		1064	sub list_logins {
		1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1066	or return [];
		1067
		1068	my @logins;
		1069
		1070	for my $login (@$dirs) {
		1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1072	aio_read $fh, 0, 512, my $buf, 0 or next;
		1073	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1074
		1075	utf8::decode $login;
		1076	push @logins, $login;
		1077	}
		1078
		1079	\@logins
		1080	}
		1081
		1082	=item $player->maps
		1083
		1084	Returns an arrayref of map paths that are private for this
		1085	player. May block.
		1086
		1087	=cut
		1088
		1089	sub maps($) {
		1090	my ($pl) = @_;
		1091
		1092	$pl = ref $pl ? $pl->ob->name : $pl;
		1093
		1094	my $files = aio_readdir playerdir $pl
		1095	or return;
		1096
		1097	my @paths;
		1098
		1099	for (@$files) {
		1100	utf8::decode $_;
		1101	next if /\.(?:pl|pst)$/;
		1102	next unless /^$PATH_SEP/o;
		1103
		1104	push @paths, cf::map::normalise "~$pl/$_";
		1105	}
		1106
		1107	\@paths
1019	}	1108	}
1020		1109
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1110	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1111
1023	Sends an ext reply to the player.	1112	Sends an ext reply to the player.
1024		1113
1025	=cut	1114	=cut
1026		1115
1027	sub cf::player::ext_reply($$$%) {	1116	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1117	my ($self, $id, %msg) = @_;
1029		1118
1030	$msg{msgid} = $id;	1119	$msg{msgid} = $id;
1031		1120
1032	$self->send ("ext " . to_json \%msg);	1121	$self->send ("ext " . cf::to_json \%msg);
1033	}	1122	}
		1123
		1124	package cf;
1034		1125
1035	=back	1126	=back
1036		1127
1037		1128
1038	=head3 cf::map	1129	=head3 cf::map
…		…
1044	package cf::map;	1135	package cf::map;
1045		1136
1046	use Fcntl;	1137	use Fcntl;
1047	use Coro::AIO;	1138	use Coro::AIO;
1048		1139
		1140	use overload
		1141	'""' => \&as_string,
		1142	fallback => 1;
		1143
1049	our $MAX_RESET = 7200;	1144	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1145	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1146
1054	sub generate_random_map {	1147	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1148	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1149	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1150	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1154	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1155	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1161	(cf::region::find $rmp->{region}), $rmp->{custom}
		1162	)
		1163	}
		1164
		1165	=item cf::map->register ($regex, $prio)
		1166
		1167	Register a handler for the map path matching the given regex at the
		1168	givne priority (higher is better, built-in handlers have priority 0, the
		1169	default).
		1170
		1171	=cut
		1172
		1173	sub register {
		1174	my (undef, $regex, $prio) = @_;
		1175	my $pkg = caller;
		1176
		1177	no strict;
		1178	push @{"$pkg\::ISA"}, __PACKAGE__;
		1179
		1180	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1181	}
		1182
		1183	# also paths starting with '/'
		1184	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1185
		1186	sub thawer_merge {
		1187	my ($self, $merge) = @_;
		1188
		1189	# we have to keep some variables in memory intact
		1190	local $self->{path};
		1191	local $self->{load_path};
		1192	local $self->{deny_save};
		1193	local $self->{deny_reset};
		1194
		1195	$self->SUPER::thawer_merge ($merge);
		1196	}
		1197
		1198	sub normalise {
		1199	my ($path, $base) = @_;
		1200
		1201	$path = "$path"; # make sure its a string
		1202
		1203	$path =~ s/\.map$//;
		1204
		1205	# map plan:
		1206	#
		1207	# /! non-realised random map exit (special hack!)
		1208	# {... are special paths that are not being touched
		1209	# ?xxx/... are special absolute paths
		1210	# ?random/... random maps
		1211	# /... normal maps
		1212	# ~user/... per-player map of a specific user
		1213
		1214	$path =~ s/$PATH_SEP/\//go;
		1215
		1216	# treat it as relative path if it starts with
		1217	# something that looks reasonable
		1218	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1219	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1220
		1221	$base =~ s{[^/]+/?$}{};
		1222	$path = "$base/$path";
		1223	}
		1224
		1225	for ($path) {
		1226	redo if s{//}{/};
		1227	redo if s{/\.?/}{/};
		1228	redo if s{/[^/]+/\.\./}{/};
		1229	}
		1230
		1231	$path
		1232	}
		1233
		1234	sub new_from_path {
		1235	my (undef, $path, $base) = @_;
		1236
		1237	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1238
		1239	$path = normalise $path, $base;
		1240
		1241	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1242	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1243	my $self = bless cf::map::new, $pkg;
		1244	$self->{path} = $path; $self->path ($path);
		1245	$self->init; # pass $1 etc.
		1246	return $self;
		1247	}
		1248	}
		1249
		1250	Carp::carp "unable to resolve path '$path' (base '$base').";
		1251	()
		1252	}
		1253
		1254	sub init {
		1255	my ($self) = @_;
		1256
		1257	$self
		1258	}
		1259
		1260	sub as_string {
		1261	my ($self) = @_;
		1262
		1263	"$self->{path}"
		1264	}
		1265
		1266	# the displayed name, this is a one way mapping
		1267	sub visible_name {
		1268	&as_string
		1269	}
		1270
		1271	# the original (read-only) location
		1272	sub load_path {
		1273	my ($self) = @_;
		1274
		1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1276	}
		1277
		1278	# the temporary/swap location
		1279	sub save_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1284	}
		1285
		1286	# the unique path, undef == no special unique path
		1287	sub uniq_path {
		1288	my ($self) = @_;
		1289
		1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1292	}
1072		1293
1073	# and all this just because we cannot iterate over	1294	# and all this just because we cannot iterate over
1074	# all maps in C++...	1295	# all maps in C++...
1075	sub change_all_map_light {	1296	sub change_all_map_light {
1076	my ($change) = @_;	1297	my ($change) = @_;
1077		1298
1078	$_->change_map_light ($change) for values %cf::MAP;	1299	$_->change_map_light ($change)
		1300	for grep $_->outdoor, values %cf::MAP;
1079	}	1301	}
1080		1302
		1303	sub unlink_save {
		1304	my ($self) = @_;
		1305
		1306	utf8::encode (my $save = $self->save_path);
		1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1309
		1310	#d#TODO remove .map and also nuke
		1311	$save =~ s/\.map// or return;#d#
		1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
		1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
		1314	}
		1315
1081	sub try_load_header($) {	1316	sub load_header_from($) {
1082	my ($path) = @_;	1317	my ($self, $path) = @_;
1083		1318
1084	utf8::encode $path;	1319	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1320	#aio_open $path, O_RDONLY, 0
		1321	# or return;
		1322
		1323	$self->_load_header ($path)
1086	or return;	1324	or return;
1087		1325
1088	my $map = cf::map::new	1326	$self->{load_path} = $path;
		1327
		1328	1
		1329	}
		1330
		1331	sub load_header_orig {
		1332	my ($self) = @_;
		1333
		1334	$self->load_header_from ($self->load_path)
		1335	}
		1336
		1337	sub load_header_temp {
		1338	my ($self) = @_;
		1339
		1340	$self->load_header_from ($self->save_path)
		1341	}
		1342
		1343	sub prepare_temp {
		1344	my ($self) = @_;
		1345
		1346	$self->last_access ((delete $self->{last_access})
		1347	|| $cf::RUNTIME); #d#
		1348	# safety
		1349	$self->{instantiate_time} = $cf::RUNTIME
		1350	if $self->{instantiate_time} > $cf::RUNTIME;
		1351	}
		1352
		1353	sub prepare_orig {
		1354	my ($self) = @_;
		1355
		1356	$self->{load_original} = 1;
		1357	$self->{instantiate_time} = $cf::RUNTIME;
		1358	$self->last_access ($cf::RUNTIME);
		1359	$self->instantiate;
		1360	}
		1361
		1362	sub load_header {
		1363	my ($self) = @_;
		1364
		1365	if ($self->load_header_temp) {
		1366	$self->prepare_temp;
		1367	} else {
		1368	$self->load_header_orig
1089	or return;	1369	or return;
		1370	$self->prepare_orig;
		1371	}
1090		1372
1091	$map->load_header ($path)	1373	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1374	}
1099		1375
		1376	sub find;
1100	sub find_map {	1377	sub find {
1101	my ($path, $origin) = @_;	1378	my ($path, $origin) = @_;
1102		1379
1103	#warn "find_map<$path,$origin>\n";#d#	1380	$path = normalise $path, $origin && $origin->path;
1104		1381
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1382	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1383
1108	$cf::MAP{$key} || do {	1384	$cf::MAP{$path} || do {
1109	# do it the slow way	1385	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1386	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1387	or return;
1124		1388
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1389	$map->{last_save} = $cf::RUNTIME;
1135		1390
1136	$map->reset if $map->should_reset;	1391	$map->load_header
		1392	or return;
1137		1393
		1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1395	# doing this can freeze the server in a sync job, obviously
		1396	#$cf::WAIT_FOR_TICK->wait;
		1397	$map->reset;
		1398	undef $guard;
		1399	return find $path;
		1400	}
		1401
1138	$cf::MAP{$key} = $map	1402	$cf::MAP{$path} = $map
1139	}	1403	}
1140	}	1404	}
		1405
		1406	sub pre_load { }
		1407	sub post_load { }
1141		1408
1142	sub load {	1409	sub load {
1143	my ($self) = @_;	1410	my ($self) = @_;
1144		1411
		1412	local $self->{deny_reset} = 1; # loading can take a long time
		1413
		1414	my $path = $self->{path};
		1415	my $guard = cf::lock_acquire "map_load:$path";
		1416
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1417	return if $self->in_memory != cf::MAP_SWAPPED;
1146		1418
1147	$self->in_memory (cf::MAP_LOADING);	1419	$self->in_memory (cf::MAP_LOADING);
1148		1420
1149	my $path = $self->{path};
1150
1151	$self->alloc;	1421	$self->alloc;
		1422
		1423	$self->pre_load;
		1424
1152	$self->load_objects ($self->{load_path}, 1)	1425	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1426	or return;
1154		1427
		1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1429	if delete $self->{load_original};
		1430
1155	if (my $uniq = $path->uniq_path) {	1431	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1432	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1433	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1434	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1435	$self->_load_objects ($uniq, 0);
1160	}	1436	}
1161	}	1437	}
		1438
		1439	Coro::cede;
1162		1440
1163	# now do the right thing for maps	1441	# now do the right thing for maps
1164	$self->link_multipart_objects;	1442	$self->link_multipart_objects;
1165		1443
1166	if ($self->{path}->is_style_map) {	1444	unless ($self->{deny_activate}) {
1167	$self->{deny_save} = 1;	1445	$self->decay_objects;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;	1446	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;	1447	$self->update_buttons;
		1448	Coro::cede;
1173	$self->set_darkness_map;	1449	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1450	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1451	unless $self->difficulty;
		1452	Coro::cede;
1176	$self->activate;	1453	$self->activate;
1177	}	1454	}
1178		1455
		1456	$self->post_load;
		1457
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1458	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1459	}
1181		1460
1182	sub load_map_sync {	1461	sub customise_for {
		1462	my ($self, $ob) = @_;
		1463
		1464	return find "~" . $ob->name . "/" . $self->{path}
		1465	if $self->per_player;
		1466
		1467	$self
		1468	}
		1469
		1470	# find and load all maps in the 3x3 area around a map
		1471	sub load_diag {
		1472	my ($map) = @_;
		1473
		1474	my @diag; # diagonal neighbours
		1475
		1476	for (0 .. 3) {
		1477	my $neigh = $map->tile_path ($_)
		1478	or next;
		1479	$neigh = find $neigh, $map
		1480	or next;
		1481	$neigh->load;
		1482
		1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1485	}
		1486
		1487	for (@diag) {
		1488	my $neigh = find @$_
		1489	or next;
		1490	$neigh->load;
		1491	}
		1492	}
		1493
		1494	sub find_sync {
1183	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1184		1496
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1497	cf::sync_job { find $path, $origin }
		1498	}
1186		1499
1187	cf::sync_job {	1500	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1501	my ($map) = @_;
1189	or return;	1502
		1503	cf::sync_job { $map->load };
		1504	}
		1505
		1506	our %MAP_PREFETCH;
		1507	our $MAP_PREFETCHER = undef;
		1508
		1509	sub find_async {
		1510	my ($path, $origin) = @_;
		1511
		1512	$path = normalise $path, $origin && $origin->{path};
		1513
		1514	if (my $map = $cf::MAP{$path}) {
		1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1516	}
		1517
		1518	undef $MAP_PREFETCH{$path};
		1519	$MAP_PREFETCHER ||= cf::async {
		1520	while (%MAP_PREFETCH) {
		1521	for my $path (keys %MAP_PREFETCH) {
		1522	my $map = find $path
		1523	or next;
1190	$map->load;	1524	$map->load;
1191	$map	1525
		1526	delete $MAP_PREFETCH{$path};
		1527	}
		1528	}
		1529	undef $MAP_PREFETCHER;
1192	}	1530	};
		1531	$MAP_PREFETCHER->prio (6);
		1532
		1533	()
1193	}	1534	}
1194		1535
1195	sub save {	1536	sub save {
1196	my ($self) = @_;	1537	my ($self) = @_;
1197		1538
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1540
1201	$self->{last_save} = $cf::RUNTIME;	1541	$self->{last_save} = $cf::RUNTIME;
1202		1542
1203	return unless $self->dirty;	1543	return unless $self->dirty;
1204		1544
		1545	my $save = $self->save_path; utf8::encode $save;
		1546	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1547
1205	$self->{load_path} = $save;	1548	$self->{load_path} = $save;
1206		1549
1207	return if $self->{deny_save};	1550	return if $self->{deny_save};
1208		1551
1209	warn "saving map ", $self->path;	1552	local $self->{last_access} = $self->last_access;#d#
		1553
		1554	cf::async {
		1555	$_->contr->save for $self->players;
		1556	};
1210		1557
1211	if ($uniq) {	1558	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1561	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1563	}
1217	}	1564	}
1218		1565
1219	sub swap_out {	1566	sub swap_out {
1220	my ($self) = @_;	1567	my ($self) = @_;
		1568
		1569	# save first because save cedes
		1570	$self->save;
		1571
		1572	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1573
1222	return if $self->players;	1574	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1576	return if $self->{deny_save};
1225		1577
1226	$self->save;
1227	$self->clear;	1578	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1579	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1580	}
1230		1581
		1582	sub reset_at {
		1583	my ($self) = @_;
		1584
		1585	# TODO: safety, remove and allow resettable per-player maps
		1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1587	return 1e99 if $self->{deny_reset};
		1588
		1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1591
		1592	$time + $to
		1593	}
		1594
1231	sub should_reset {	1595	sub should_reset {
1232	my ($map) = @_;	1596	my ($self) = @_;
1233		1597
1234	# TODO: safety, remove and allow resettable per-player maps	1598	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1599	}
1243		1600
1244	sub reset {	1601	sub reset {
1245	my ($self) = @_;	1602	my ($self) = @_;
1246		1603
		1604	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1605
1247	return if $self->players;	1606	return if $self->players;
1248	return if $self->{path}{user_rel};#d#	1607	return if $self->isa ("ext::map_per_player");#d#
1249		1608
1250	warn "resetting map ", $self->path;#d#	1609	warn "resetting map ", $self->path;#d#
1251		1610
1252	utf8::encode (my $save = $self->{path}->save_path);	1611	delete $cf::MAP{$self->path};
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	1612
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	1613	$self->in_memory (cf::MAP_SWAPPED);
		1614	$self->clear;
1255		1615
1256	$_->clear_links_to ($self) for values %cf::MAP;	1616	$_->clear_links_to ($self) for values %cf::MAP;
1257		1617
		1618	$self->unlink_save;
1258	$self->clear;	1619	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	1620	}
1262		1621
1263	sub customise_for {	1622	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		1623
1266	if ($map->per_player) {	1624	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1625	my ($self) = @_;
1268	}
1269		1626
1270	$map	1627	delete $cf::MAP{$self->path};
1271	}
1272		1628
1273	sub emergency_save {	1629	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		1630
1276	warn "enter emergency map save\n";	1631	bless $self, "cf::map";
		1632	delete $self->{deny_reset};
		1633	$self->{deny_save} = 1;
		1634	$self->reset_timeout (1);
		1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		1636
1278	cf::sync_job {	1637	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";	1638
1280	$_->save for values %cf::MAP;	1639	$self->reset; # polite request, might not happen
		1640	}
		1641
		1642	=item cf::map::unique_maps
		1643
		1644	Returns an arrayref of paths of all shared maps that have
		1645	instantiated unique items. May block.
		1646
		1647	=cut
		1648
		1649	sub unique_maps() {
		1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1651	or return;
		1652
		1653	my @paths;
		1654
		1655	for (@$files) {
		1656	utf8::decode $_;
		1657	next if /\.pst$/;
		1658	next unless /^$PATH_SEP/o;
		1659
		1660	push @paths, cf::map::normalise $_;
1281	};	1661	}
1282		1662
1283	warn "end emergency map save\n";	1663	\@paths
1284	}	1664	}
1285		1665
1286	package cf;	1666	package cf;
1287		1667
1288	=back	1668	=back
1289		1669
		1670	=head3 cf::object
		1671
		1672	=cut
		1673
		1674	package cf::object;
		1675
		1676	=over 4
		1677
		1678	=item $ob->inv_recursive
		1679
		1680	Returns the inventory of the object _and_ their inventories, recursively.
		1681
		1682	=cut
		1683
		1684	sub inv_recursive_;
		1685	sub inv_recursive_ {
		1686	map { $_, inv_recursive_ $_->inv } @_
		1687	}
		1688
		1689	sub inv_recursive {
		1690	inv_recursive_ inv $_[0]
		1691	}
		1692
		1693	package cf;
		1694
		1695	=back
1290		1696
1291	=head3 cf::object::player	1697	=head3 cf::object::player
1292		1698
1293	=over 4	1699	=over 4
1294		1700
…		…
1330	(ref $cf::CFG{"may_$access"}	1736	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1737	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	1738	: $cf::CFG{"may_$access"})
1333	}	1739	}
1334		1740
		1741	=item $player_object->enter_link
		1742
		1743	Freezes the player and moves him/her to a special map (C<{link}>).
		1744
		1745	The player should be reasonably safe there for short amounts of time. You
		1746	I<MUST> call C<leave_link> as soon as possible, though.
		1747
		1748	Will never block.
		1749
		1750	=item $player_object->leave_link ($map, $x, $y)
		1751
		1752	Moves the player out of the special C<{link}> map onto the specified
		1753	map. If the map is not valid (or omitted), the player will be moved back
		1754	to the location he/she was before the call to C<enter_link>, or, if that
		1755	fails, to the emergency map position.
		1756
		1757	Might block.
		1758
		1759	=cut
		1760
		1761	sub link_map {
		1762	unless ($LINK_MAP) {
		1763	$LINK_MAP = cf::map::find "{link}"
		1764	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1765	$LINK_MAP->load;
		1766	}
		1767
		1768	$LINK_MAP
		1769	}
		1770
1335	sub cf::object::player::enter_link {	1771	sub cf::object::player::enter_link {
1336	my ($self) = @_;	1772	my ($self) = @_;
1337		1773
1338	return if $self->map == $LINK_MAP;	1774	$self->deactivate_recursive;
1339		1775
		1776	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1777
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;	1779	if $self->map;
1342		1780
1343	$self->enter_map ($LINK_MAP, 20, 20);	1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1344	$self->deactivate_recursive;
1345	}	1782	}
1346		1783
1347	sub cf::object::player::leave_link {	1784	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	1785	my ($self, $map, $x, $y) = @_;
1349		1786
1350	my $link_pos = delete $self->{_link_pos};	1787	my $link_pos = delete $self->{_link_pos};
1351		1788
1352	unless ($map) {	1789	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	1790	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	1791	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	1792	$map = cf::map::find $map;
1358		1793
1359	unless ($map) {	1794	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	1795	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	1796	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	1797	or die "FATAL: cannot load emergency map\n";
1363	}	1798	}
1364	}	1799	}
1365		1800
1366	($x, $y) = (-1, -1)	1801	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	1804	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	1805	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	1806	if $x <=0 && $y <= 0;
1372		1807
1373	$map->load;	1808	$map->load;
		1809	$map->load_diag;
1374		1810
		1811	return unless $self->contr->active;
1375	$self->activate_recursive;	1812	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1377	}	1814	}
1378		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($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	# we need this sleep as the login has a concurrent enter_exit running
		1836	# and this sleep increases chances of the player not ending up in scorn
		1837	$pl->ob->reply (undef,
		1838	"There was an internal problem at your last logout, "
		1839	. "the server will try to bring you to your intended destination in a second.",
		1840	cf::NDI_RED);
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
1379	=item $player_object->goto_map ($map, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1380		1849
1381	=cut	1850	=cut
1382		1851
1383	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1385		1854
1386	$self->enter_link;	1855	$self->enter_link;
1387		1856
1388	(Coro::async {	1857	(async {
1389	$path = new cf::path $path;	1858	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	1859	my $map = cf::map::find $path;
1392	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1393
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1396		1864
1397	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1398	})->prio (1);	1866	})->prio (1);
1399	}	1867	}
1400		1868
…		…
1404		1872
1405	sub parse_random_map_params {	1873	sub parse_random_map_params {
1406	my ($spec) = @_;	1874	my ($spec) = @_;
1407		1875
1408	my $rmp = { # defaults	1876	my $rmp = { # defaults
1409	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1411	};	1881	};
1412		1882
1413	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1415		1885
…		…
1419	$rmp	1889	$rmp
1420	}	1890	}
1421		1891
1422	sub prepare_random_map {	1892	sub prepare_random_map {
1423	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		1896
1425	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	1899	# that depends on the exit object
1428		1900
1429	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1430		1902
1431	if ($exit->map) {	1903	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1436	}	1908	}
1437		1909
1438	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1439		1911
1440	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1442		1915
1443	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) {
1444	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;
1445		1920
1446	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	1922	$exit->msg (undef);
1448	}	1923	}
1449	}	1924	}
…		…
1451	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1453		1928
1454	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1455		1930
		1931	if ($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
1456	$self->enter_link;	1940	$self->enter_link;
1457		1941
1458	(Coro::async {	1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	1944	unless (eval {
1460		1945	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		1946
1467	1;	1947	1;
1468	}) {	1948	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "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. "
1471	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1473		1953
1474	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	1955	$self->leave_link;
1476	}	1956	}
…		…
1527	on_reply => sub {	2007	on_reply => sub {
1528	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
1529		2009
1530	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
1531	# get handled first	2011	# get handled first
1532	my $queue = delete $ns->{query_queue};	2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2014
1534	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2017
1536	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1537		2019
1538	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2021	if (@$queue) {
…		…
1543	}	2025	}
1544	}	2026	}
1545	},	2027	},
1546	);	2028	);
1547		2029
1548	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1549		2031
1550	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2034	or loss of connection).
1553		2035
1554	=cut	2036	=cut
1555		2037
1556	sub cf::client::coro {	2038	sub cf::client::async {
1557	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1558		2040
1559	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2042
1566	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1568	});	2045	});
1569		2046
…		…
1741		2218
1742	{	2219	{
1743	my $path = cf::localdir . "/database.pst";	2220	my $path = cf::localdir . "/database.pst";
1744		2221
1745	sub db_load() {	2222	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };	2223	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	2224	}
1749		2225
1750	my $pid;	2226	my $pid;
1751		2227
1752	sub db_save() {	2228	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;	2229	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {	2230	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;	2231	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";	2232	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;	2233	rename "$path~", $path;
…		…
1765	sub db_sync() {	2240	sub db_sync() {
1766	db_save if $dirty;	2241	db_save if $dirty;
1767	undef $dirty;	2242	undef $dirty;
1768	}	2243	}
1769		2244
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2245	my $idle = Event->idle (
1771	db_sync;	2246	reentrant => 0,
		2247	min => 10,
		2248	max => 20,
		2249	repeat => 0,
		2250	data => WF_AUTOCANCEL,
		2251	cb => \&db_sync,
1772	});	2252	);
1773		2253
1774	sub db_dirty() {	2254	sub db_dirty() {
1775	$dirty = 1;	2255	$dirty = 1;
1776	$idle->start;	2256	$idle->start;
1777	}	2257	}
…		…
1798	},	2278	},
1799	);	2279	);
1800	}	2280	}
1801		2281
1802	#############################################################################	2282	#############################################################################
1803	# the server's main()	2283	# the server's init and main functions
		2284
		2285	sub load_resources {
		2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2287	or die "unable to load regions file\n";#d#
		2288	}
1804		2289
1805	sub cfg_load {	2290	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2291	open my $fh, "<:utf8", cf::confdir . "/config"
1807	or return;	2292	or return;
1808		2293
1809	local $/;	2294	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2295	*CFG = YAML::Syck::Load <$fh>;
		2296
		2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2298
		2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2301
		2302	if (exists $CFG{mlockall}) {
		2303	eval {
		2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2305	and die "WARNING: m(un)lockall failed: $!\n";
		2306	};
		2307	warn $@ if $@;
		2308	}
		2309	}
		2310
		2311	sub init {
		2312	load_resources;
1811	}	2313	}
1812		2314
1813	sub main {	2315	sub main {
1814	# we must not ever block the main coroutine	2316	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2317	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2319	(async {
1818	Event::one_event;	2320	Event::one_event;
1819	})->();	2321	})->prio (Coro::PRIO_MAX);
1820	};	2322	};
1821		2323
1822	cfg_load;	2324	cfg_load;
1823	db_load;	2325	db_load;
1824	load_extensions;	2326	load_extensions;
		2327
		2328	$TICK_WATCHER->start;
1825	Event::loop;	2329	Event::loop;
1826	}	2330	}
1827		2331
1828	#############################################################################	2332	#############################################################################
1829	# initialisation	2333	# initialisation and cleanup
1830		2334
		2335	# install some emergency cleanup handlers
		2336	BEGIN {
		2337	for my $signal (qw(INT HUP TERM)) {
		2338	Event->signal (
		2339	reentrant => 0,
		2340	data => WF_AUTOCANCEL,
		2341	signal => $signal,
		2342	prio => 0,
		2343	cb => sub {
		2344	cf::cleanup "SIG$signal";
		2345	},
		2346	);
		2347	}
		2348	}
		2349
		2350	sub emergency_save() {
		2351	my $freeze_guard = cf::freeze_mainloop;
		2352
		2353	warn "enter emergency perl save\n";
		2354
		2355	cf::sync_job {
		2356	# use a peculiar iteration method to avoid tripping on perl
		2357	# refcount bugs in for. also avoids problems with players
		2358	# and maps saved/destroyed asynchronously.
		2359	warn "begin emergency player save\n";
		2360	for my $login (keys %cf::PLAYER) {
		2361	my $pl = $cf::PLAYER{$login} or next;
		2362	$pl->valid or next;
		2363	$pl->save;
		2364	}
		2365	warn "end emergency player save\n";
		2366
		2367	warn "begin emergency map save\n";
		2368	for my $path (keys %cf::MAP) {
		2369	my $map = $cf::MAP{$path} or next;
		2370	$map->valid or next;
		2371	$map->save;
		2372	}
		2373	warn "end emergency map save\n";
		2374	};
		2375
		2376	warn "leave emergency perl save\n";
		2377	}
		2378
1831	sub perl_reload() {	2379	sub reload() {
1832	# can/must only be called in main	2380	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2381	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2382	warn "can only reload from main coroutine";
1835	return;	2383	return;
1836	}	2384	}
1837		2385
1838	warn "reloading...";	2386	warn "reloading...";
1839		2387
1840	local $FREEZE = 1;	2388	warn "cancelling server ticker";
		2389	$TICK_WATCHER->cancel;
		2390
1841	cf::emergency_save;	2391	cf::emergency_save;
1842		2392
1843	eval {	2393	eval {
1844	# if anything goes wrong in here, we should simply crash as we already saved	2394	# if anything goes wrong in here, we should simply crash as we already saved
1845		2395
1846	# cancel all watchers	2396	warn "syncing database to disk";
		2397	cf::db_sync;
		2398
		2399	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	2400	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	2401	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	2402	}
1850		2403
		2404	warn "flushing outstanding aio requests";
		2405	for (;;) {
		2406	IO::AIO::flush;
		2407	Coro::cede;
		2408	last unless IO::AIO::nreqs;
		2409	warn "iterate...";
		2410	}
		2411
1851	# cancel all extension coros	2412	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	2413	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	2414	%EXT_CORO = ();
1854		2415
1855	# unload all extensions	2416	warn "removing commands";
1856	for (@exts) {	2417	%COMMAND = ();
		2418
		2419	warn "removing ext commands";
		2420	%EXTCMD = ();
		2421
		2422	warn "unloading/nuking all extensions";
		2423	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	2424	warn "... unloading $pkg";
1858	unload_extension $_;	2425
		2426	if (my $cb = $pkg->can ("unload")) {
		2427	eval {
		2428	$cb->($pkg);
		2429	1
		2430	} or warn "$pkg unloaded, but with errors: $@";
1859	}	2431	}
1860		2432
		2433	warn "... nuking $pkg";
		2434	Symbol::delete_package $pkg;
		2435	}
		2436
1861	# unload all modules loaded from $LIBDIR	2437	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	2438	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		2440
1865	warn "removing <$k>";	2441	warn "... unloading $k";
1866	delete $INC{$k};	2442	delete $INC{$k};
1867		2443
1868	$k =~ s/\.pm$//;	2444	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	2445	$k =~ s/\//::/g;
1870		2446
…		…
1873	}	2449	}
1874		2450
1875	Symbol::delete_package $k;	2451	Symbol::delete_package $k;
1876	}	2452	}
1877		2453
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	2454	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	2455	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		2457
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	2458	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	2459	delete $INC{"cf.pm"};
1891		2460
1892	# don't, removes xs symbols, too,	2461	# don't, removes xs symbols, too,
1893	# and global variables created in xs	2462	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	2463	#Symbol::delete_package __PACKAGE__;
1895		2464
1896	# reload cf.pm	2465	warn "unload completed, starting to reload now";
		2466
1897	warn "reloading cf.pm";	2467	warn "reloading cf.pm";
1898	require cf;	2468	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		2470
1901	# load config and database again	2471	warn "loading config and database again";
1902	cf::cfg_load;	2472	cf::cfg_load;
1903	cf::db_load;	2473	cf::db_load;
1904		2474
1905	# load extensions
1906	warn "load extensions";	2475	warn "loading extensions";
1907	cf::load_extensions;	2476	cf::load_extensions;
1908		2477
1909	# reattach attachments to objects	2478	warn "reattaching attachments to objects/players";
1910	warn "reattach";
1911	_global_reattach;	2479	_global_reattach;
		2480	warn "reattaching attachments to maps";
		2481	reattach $_ for values %MAP;
		2482
		2483	warn "loading reloadable resources";
		2484	load_resources;
		2485
		2486	warn "restarting server ticker";
		2487
		2488	$TICK_WATCHER->start;
1912	};	2489	};
1913		2490
1914	if ($@) {	2491	if ($@) {
1915	warn $@;	2492	warn $@;
1916	warn "error while reloading, exiting.";	2493	warn "error while reloading, exiting.";
1917	exit 1;	2494	exit 1;
1918	}	2495	}
1919		2496
1920	warn "reloaded successfully";	2497	warn "reloaded";
1921	};	2498	};
1922		2499
1923	#############################################################################	2500	our $RELOAD_WATCHER; # used only during reload
1924		2501
1925	unless ($LINK_MAP) {
1926	$LINK_MAP = cf::map::new;
1927
1928	$LINK_MAP->width (41);
1929	$LINK_MAP->height (41);
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});
1959
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	2502	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	2503	my ($who, $arg) = @_;
1970		2504
1971	if ($who->flag (FLAG_WIZ)) {	2505	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	2506	$who->message ("reloading server.");
		2507
		2508	# doing reload synchronously and two reloads happen back-to-back,
		2509	# coro crashes during coro_state_free->destroy here.
		2510
		2511	$RELOAD_WATCHER ||= Event->timer (
		2512	reentrant => 0,
		2513	after => 0,
		2514	data => WF_AUTOCANCEL,
		2515	cb => sub {
		2516	reload;
		2517	undef $RELOAD_WATCHER;
		2518	},
		2519	);
1975	}	2520	}
1976	};	2521	};
1977		2522
1978	unshift @INC, $LIBDIR;	2523	unshift @INC, $LIBDIR;
		2524
		2525	my $bug_warning = 0;
1979		2526
1980	$TICK_WATCHER = Event->timer (	2527	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	2528	reentrant => 0,
		2529	parked => 1,
1982	prio => 0,	2530	prio => 0,
1983	at => $NEXT_TICK || $TICK,	2531	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
1985	cb => sub {	2533	cb => sub {
1986	unless ($FREEZE) {	2534	if ($Coro::current != $Coro::main) {
		2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2536	unless ++$bug_warning > 10;
		2537	return;
		2538	}
		2539
		2540	$NOW = Event::time;
		2541
1987	cf::server_tick; # one server iteration	2542	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	2543	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;	2544	$NEXT_TICK += $TICK;
		2545
		2546	$WAIT_FOR_TICK->broadcast;
		2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2548
		2549	Event::sweep;
		2550	Coro::cede_notself;
		2551
		2552	# my $AFTER = Event::time;
		2553	# warn $AFTER - $NOW;#d#
1992		2554
1993	# if we are delayed by four ticks or more, skip them all	2555	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995		2557
1996	$TICK_WATCHER->at ($NEXT_TICK);	2558	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	2559	$TICK_WATCHER->start;
1998	},	2560	},
1999	);	2561	);
2000		2562
		2563	{
		2564	BDB::max_poll_time $TICK * 0.1;
		2565	$BDB_POLL_WATCHER = Event->io (
		2566	reentrant => 0,
		2567	fd => BDB::poll_fileno,
		2568	poll => 'r',
		2569	prio => 0,
		2570	data => WF_AUTOCANCEL,
		2571	cb => \&BDB::poll_cb,
		2572	);
		2573	BDB::min_parallel 8;
		2574
		2575	BDB::set_sync_prepare {
		2576	my $status;
		2577	my $current = $Coro::current;
		2578	(
		2579	sub {
		2580	$status = $!;
		2581	$current->ready; undef $current;
		2582	},
		2583	sub {
		2584	Coro::schedule while defined $current;
		2585	$! = $status;
		2586	},
		2587	)
		2588	};
		2589
		2590	unless ($DB_ENV) {
		2591	$DB_ENV = BDB::db_env_create;
		2592
		2593	cf::sync_job {
		2594	BDB::db_env_open
		2595	$DB_ENV,
		2596	$BDB_ENV_DIR,
		2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2599	0666;
		2600
		2601	cf::cleanup "$!" if $!;
		2602
		2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2604	$DB_ENV->set_lk_detect;
		2605	};
		2606	}
		2607	}
		2608
		2609	{
		2610	IO::AIO::min_parallel 8;
		2611
		2612	undef $Coro::AIO::WATCHER;
2001	IO::AIO::max_poll_time $TICK * 0.2;	2613	IO::AIO::max_poll_time $TICK * 0.1;
2002		2614	$AIO_POLL_WATCHER = Event->io (
2003	Event->io (	2615	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	2616	fd => IO::AIO::poll_fileno,
2005	poll => 'r',	2617	poll => 'r',
2006	prio => 5,	2618	prio => 6,
2007	data => WF_AUTOCANCEL,	2619	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,	2620	cb => \&IO::AIO::poll_cb,
2009	);	2621	);
		2622	}
2010		2623
2011	Event->timer (	2624	$WRITE_RUNTIME_WATCHER = Event->timer (
		2625	reentrant => 0,
2012	data => WF_AUTOCANCEL,	2626	data => WF_AUTOCANCEL,
2013	after => 0,	2627	after => 1,
2014	interval => 10,	2628	interval => 10,
2015	cb => sub {	2629	prio => 6, # keep it lowest so it acts like a watchdog
2016	(Coro::unblock_sub {	2630	cb => Coro::unblock_sub {
2017	write_runtime	2631	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";	2632	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},	2633	},
2021	);	2634	);
2022		2635
		2636	END { cf::emergency_save }
		2637
2023	1	2638	1
2024		2639

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