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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.115 by root, Mon Jan 1 16:50:10 2007 UTC vs.
Revision 1.206 by root, Sun Feb 11 22:27:05 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
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
…		…
203	# this is the main coro, too bad, we have to block	309	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	310	# till the operation succeeds, freezing the server :/
205		311
206	# TODO: use suspend/resume instead	312	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	313	# (but this is cancel-safe)
208	local $FREEZE = 1;	314	my $freeze_guard = freeze_mainloop;
209		315
210	my $busy = 1;	316	my $busy = 1;
211	my @res;	317	my @res;
212		318
213	(Coro::async {	319	(async {
214	@res = eval { $job->() };	320	@res = eval { $job->() };
215	warn $@ if $@;	321	warn $@ if $@;
216	undef $busy;	322	undef $busy;
217	})->prio (Coro::PRIO_MAX);	323	})->prio (Coro::PRIO_MAX);
218		324
219	while ($busy) {	325	while ($busy) {
220	Coro::cede_notself;	326	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	327	}
223		328
224	wantarray ? @res : $res[0]	329	wantarray ? @res : $res[0]
225	} else {	330	} else {
226	# we are in another coroutine, how wonderful, everything just works	331	# we are in another coroutine, how wonderful, everything just works
227		332
228	$job->()	333	$job->()
229	}	334	}
230	}	335	}
231		336
232	=item $coro = cf::coro { BLOCK }	337	=item $coro = cf::async_ext { BLOCK }
233		338
234	Creates and returns a new coro. This coro is automcatially being canceled	339	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	340	extension calling this is being unloaded.
236		341
237	=cut	342	=cut
238		343
239	sub coro(&) {	344	sub async_ext(&) {
240	my $cb = shift;	345	my $cb = shift;
241		346
242	my $coro; $coro = async {	347	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		348
249	$coro->on_destroy (sub {	349	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	350	delete $EXT_CORO{$coro+0};
251	});	351	});
252	$EXT_CORO{$coro+0} = $coro;	352	$EXT_CORO{$coro+0} = $coro;
…		…
258	my $runtime = cf::localdir . "/runtime";	358	my $runtime = cf::localdir . "/runtime";
259		359
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	361	or return;
262		362
		363	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	364	# 10 is the runtime save interval, for a monotonic clock
		365	# 60 allows for the watchdog to kill the server.
		366
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	368	and return;
266		369
		370	# always fsync - this file is important
267	aio_fsync $fh	371	aio_fsync $fh
268	and return;	372	and return;
269		373
270	close $fh	374	close $fh
271	or return;	375	or return;
…		…
277	}	381	}
278		382
279	=back	383	=back
280		384
281	=cut	385	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		386
403	#############################################################################	387	#############################################################################
404		388
405	=head2 ATTACHABLE OBJECTS	389	=head2 ATTACHABLE OBJECTS
406		390
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	516	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	517	our @CB_MAP = ();
534		518
535	my %attachment;	519	my %attachment;
536		520
		521	sub cf::attachable::thawer_merge {
		522	# simply override everything except _meta
		523	local $_[0]{_meta};
		524	%{$_[0]} = %{$_[1]};
		525	}
		526
537	sub _attach_cb($$$$) {	527	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	528	my ($registry, $event, $prio, $cb) = @_;
539		529
540	use sort 'stable';	530	use sort 'stable';
541		531
…		…
712	# object support	702	# object support
713		703
714	sub reattach {	704	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	705	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	706	my ($obj) = @_;
		707
		708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		709
718	my $registry = $obj->registry;	710	my $registry = $obj->registry;
719		711
720	@$registry = ();	712	@$registry = ();
721		713
…		…
768	$filename, length $$rdata, scalar @$objs;	760	$filename, length $$rdata, scalar @$objs;
769		761
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	763	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	765	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	766	close $fh;
775		767
776	if (@$objs) {	768	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	770	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	771	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	772	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	773	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	774	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	775	aio_rename "$filename.pst~", "$filename.pst";
784	}	776	}
785	} else {	777	} else {
786	aio_unlink "$filename.pst";	778	aio_unlink "$filename.pst";
…		…
792	}	784	}
793	} else {	785	} else {
794	aio_unlink $filename;	786	aio_unlink $filename;
795	aio_unlink "$filename.pst";	787	aio_unlink "$filename.pst";
796	}	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	}
797	}	795	}
798	}	796	}
799		797
800	sub object_freezer_as_string {	798	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	799	my ($rdata, $objs) = @_;
…		…
807		805
808	sub object_thawer_load {	806	sub object_thawer_load {
809	my ($filename) = @_;	807	my ($filename) = @_;
810		808
811	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$//;
812		813
813	(aio_load $filename, $data) >= 0	814	(aio_load $filename, $data) >= 0
814	or return;	815	or return;
815		816
816	unless (aio_stat "$filename.pst") {	817	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	818	(aio_load "$filename.pst", $av) >= 0
818	or return;	819	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	820	$av = eval { (Storable::thaw $av)->{objs} };
820	}	821	}
821		822
		823	warn sprintf "loading %s (%d)\n",
		824	$filename, length $data, scalar @{$av || []};#d#
822	return ($data, $av);	825	return ($data, $av);
823	}	826	}
824		827
825	#############################################################################	828	#############################################################################
826	# command handling &c	829	# command handling &c
…		…
851	=cut	854	=cut
852		855
853	sub register_extcmd {	856	sub register_extcmd {
854	my ($name, $cb) = @_;	857	my ($name, $cb) = @_;
855		858
856	my $caller = caller;
857	#warn "registering extcmd '$name' to '$caller'";
858
859	$EXTCMD{$name} = [$cb, $caller];	859	$EXTCMD{$name} = $cb;
860	}	860	}
861		861
862	cf::player->attach (	862	cf::player->attach (
863	on_command => sub {	863	on_command => sub {
864	my ($pl, $name, $params) = @_;	864	my ($pl, $name, $params) = @_;
…		…
877		877
878	my $msg = eval { from_json $buf };	878	my $msg = eval { from_json $buf };
879		879
880	if (ref $msg) {	880	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->[0]->($pl, $msg)) {	882	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}	884	}
885	}	885	}
886	} else {	886	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
889		889
890	cf::override;	890	cf::override;
891	},	891	},
892	);	892	);
893		893
894	sub register {
895	my ($base, $pkg) = @_;
896
897	#TODO
898	}
899
900	sub load_extension {	894	sub load_extension {
901	my ($path) = @_;	895	my ($path) = @_;
902		896
903	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
904	my $base = $1;	898	my $base = $1;
905	my $pkg = $1;	899	my $pkg = $1;
906	$pkg =~ s/[^[:word:]]/_/g;	900	$pkg =~ s/[^[:word:]]/_/g;
907	$pkg = "ext::$pkg";	901	$pkg = "ext::$pkg";
908		902
909	warn "loading '$path' into '$pkg'\n";	903	warn "... loading '$path' into '$pkg'\n";
910		904
911	open my $fh, "<:utf8", $path	905	open my $fh, "<:utf8", $path
912	or die "$path: $!";	906	or die "$path: $!";
913		907
914	my $source =	908	my $source =
915	"package $pkg; use strict; use utf8;\n"	909	"package $pkg; use strict; use utf8;\n"
916	. "#line 1 \"$path\"\n{\n"	910	. "#line 1 \"$path\"\n{\n"
917	. (do { local $/; <$fh> })	911	. (do { local $/; <$fh> })
918	. "\n};\n1";	912	. "\n};\n1";
919		913
920	eval $source	914	unless (eval $source) {
921	or die $@ ? "$path: $@\n"	915	my $msg = $@ ? "$path: $@\n"
922	: "extension disabled.\n";	916	: "extension disabled.\n";
923		917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
924	push @exts, $pkg;	918	warn $@;
925	$ext_pkg{$base} = $pkg;	919	warn "mandatory extension failed to load, exiting.\n";
926		920	exit 1;
927	# no strict 'refs';	921	}
928	# @{"$pkg\::ISA"} = ext::;	922	die $@;
929
930	register $base, $pkg;
931	}
932
933	sub unload_extension {
934	my ($pkg) = @_;
935
936	warn "removing extension $pkg\n";
937
938	# remove hooks
939	#TODO
940	# for my $idx (0 .. $#PLUGIN_EVENT) {
941	# delete $hook[$idx]{$pkg};
942	# }	923	}
943		924
944	# remove commands	925	push @EXTS, $pkg;
945	for my $name (keys %COMMAND) {
946	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
947
948	if (@cb) {
949	$COMMAND{$name} = \@cb;
950	} else {
951	delete $COMMAND{$name};
952	}
953	}
954
955	# remove extcmds
956	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
957	delete $EXTCMD{$name};
958	}
959
960	if (my $cb = $pkg->can ("unload")) {
961	eval {
962	$cb->($pkg);
963	1
964	} or warn "$pkg unloaded, but with errors: $@";
965	}
966
967	Symbol::delete_package $pkg;
968	}	926	}
969		927
970	sub load_extensions {	928	sub load_extensions {
971	for my $ext (<$LIBDIR/*.ext>) {	929	for my $ext (<$LIBDIR/*.ext>) {
972	next unless -r $ext;	930	next unless -r $ext;
…		…
976	} or warn "$ext not loaded: $@";	934	} or warn "$ext not loaded: $@";
977	}	935	}
978	}	936	}
979		937
980	#############################################################################	938	#############################################################################
981	# load/save/clean perl data associated with a map
982
983	*cf::mapsupport::on_clean = sub {
984	my ($map) = @_;
985
986	my $path = $map->tmpname;
987	defined $path or return;
988
989	unlink "$path.pst";
990	};
991
992	cf::map->attach (prio => -10000, package => cf::mapsupport::);
993
994	#############################################################################
995	# load/save perl data associated with player->ob objects
996
997	sub all_objects(@) {
998	@_, map all_objects ($_->inv), @_
999	}
1000
1001	# TODO: compatibility cruft, remove when no longer needed
1002	cf::player->attach (
1003	on_load => sub {
1004	my ($pl, $path) = @_;
1005
1006	for my $o (all_objects $pl->ob) {
1007	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1008	$o->set_ob_key_value ("_perl_data");
1009
1010	%$o = %{ Storable::thaw pack "H*", $value };
1011	}
1012	}
1013	},
1014	);
1015
1016	#############################################################################
1017		939
1018	=head2 CORE EXTENSIONS	940	=head2 CORE EXTENSIONS
1019		941
1020	Functions and methods that extend core crossfire objects.	942	Functions and methods that extend core crossfire objects.
1021		943
		944	=cut
		945
		946	package cf::player;
		947
		948	use Coro::AIO;
		949
1022	=head3 cf::player	950	=head3 cf::player
1023		951
1024	=over 4	952	=over 4
1025		953
1026	=item cf::player::exists $login	954	=item cf::player::find $login
1027		955
1028	Returns true when the given account exists.	956	Returns the given player object, loading it if necessary (might block).
1029		957
1030	=cut	958	=cut
1031		959
1032	sub cf::player::exists($) {	960	sub playerdir($) {
1033	cf::player::find $_[0]	961	cf::localdir
1034	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
1035	}	1108	}
1036		1109
1037	=item $player->ext_reply ($msgid, $msgtype, %msg)	1110	=item $player->ext_reply ($msgid, $msgtype, %msg)
1038		1111
1039	Sends an ext reply to the player.	1112	Sends an ext reply to the player.
1040		1113
1041	=cut	1114	=cut
1042		1115
1043	sub cf::player::ext_reply($$$%) {	1116	sub ext_reply($$$%) {
1044	my ($self, $id, %msg) = @_;	1117	my ($self, $id, %msg) = @_;
1045		1118
1046	$msg{msgid} = $id;	1119	$msg{msgid} = $id;
1047		1120
1048	$self->send ("ext " . to_json \%msg);	1121	$self->send ("ext " . cf::to_json \%msg);
1049	}	1122	}
		1123
		1124	package cf;
1050		1125
1051	=back	1126	=back
1052		1127
1053		1128
1054	=head3 cf::map	1129	=head3 cf::map
…		…
1060	package cf::map;	1135	package cf::map;
1061		1136
1062	use Fcntl;	1137	use Fcntl;
1063	use Coro::AIO;	1138	use Coro::AIO;
1064		1139
		1140	use overload
		1141	'""' => \&as_string,
		1142	fallback => 1;
		1143
1065	our $MAX_RESET = 7200;	1144	our $MAX_RESET = 3600;
1066	our $DEFAULT_RESET = 3600;	1145	our $DEFAULT_RESET = 3000;
1067		1146
1068	sub generate_random_map {	1147	sub generate_random_map {
1069	my ($path, $rmp) = @_;	1148	my ($self, $rmp) = @_;
1070
1071	# mit "rum" bekleckern, nicht	1149	# mit "rum" bekleckern, nicht
1072	cf::map::_create_random_map	1150	$self->_create_random_map (
1073	$path,
1074	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1075	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1076	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1077	$rmp->{exit_on_final_map},	1154	$rmp->{exit_on_final_map},
1078	$rmp->{xsize}, $rmp->{ysize},	1155	$rmp->{xsize}, $rmp->{ysize},
1079	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1080	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1081	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1082	$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},
1083	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1084	(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, $path
1085	}	1292	}
1086		1293
1087	# and all this just because we cannot iterate over	1294	# and all this just because we cannot iterate over
1088	# all maps in C++...	1295	# all maps in C++...
1089	sub change_all_map_light {	1296	sub change_all_map_light {
1090	my ($change) = @_;	1297	my ($change) = @_;
1091		1298
1092	$_->change_map_light ($change) for values %cf::MAP;	1299	$_->change_map_light ($change)
		1300	for grep $_->outdoor, values %cf::MAP;
1093	}	1301	}
1094		1302
		1303	sub unlink_save {
		1304	my ($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
1095	sub try_load_header($) {	1316	sub load_header_from($) {
1096	my ($path) = @_;	1317	my ($self, $path) = @_;
1097		1318
1098	utf8::encode $path;	1319	utf8::encode $path;
1099	aio_open $path, O_RDONLY, 0	1320	#aio_open $path, O_RDONLY, 0
		1321	# or return;
		1322
		1323	$self->_load_header ($path)
1100	or return;	1324	or return;
1101		1325
1102	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
1103	or return;	1369	or return;
		1370	$self->prepare_orig;
		1371	}
1104		1372
1105	$map->load_header ($path)	1373	1
1106	or return;
1107
1108	$map->{load_path} = $path;
1109
1110	$map
1111	}	1374	}
1112		1375
		1376	sub find;
1113	sub find_map {	1377	sub find {
1114	my ($path, $origin) = @_;	1378	my ($path, $origin) = @_;
1115		1379
1116	#warn "find_map<$path,$origin>\n";#d#
1117
1118	$path = new cf::path $path, $origin && $origin->path;	1380	$path = normalise $path, $origin && $origin->path;
1119	my $key = $path->as_string;
1120		1381
		1382	cf::lock_wait "map_find:$path";
		1383
1121	$cf::MAP{$key} || do {	1384	$cf::MAP{$path} || do {
1122	# do it the slow way	1385	my $guard = cf::lock_acquire "map_find:$path";
1123	my $map = try_load_header $path->save_path;	1386	my $map = new_from_path cf::map $path
1124
1125	if ($map) {
1126	# safety
1127	$map->{instantiate_time} = $cf::RUNTIME
1128	if $map->{instantiate_time} > $cf::RUNTIME;
1129	} else {
1130	if (my $rmp = $path->random_map_params) {
1131	$map = generate_random_map $key, $rmp;
1132	} else {
1133	$map = try_load_header $path->load_path;
1134	}
1135
1136	$map or return;	1387	or return;
1137		1388
1138	$map->{load_original} = 1;
1139	$map->{instantiate_time} = $cf::RUNTIME;
1140	$map->instantiate;
1141
1142	# per-player maps become, after loading, normal maps
1143	$map->per_player (0) if $path->{user_rel};
1144	}
1145
1146	$map->path ($key);
1147	$map->{path} = $path;
1148	$map->last_access ($cf::RUNTIME);	1389	$map->{last_save} = $cf::RUNTIME;
1149		1390
1150	if ($map->should_reset) {	1391	$map->load_header
		1392	or return;
		1393
		1394	if ($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;
1151	$map->reset;	1397	$map->reset;
1152	$map = find_map $path;	1398	undef $guard;
		1399	return find $path;
1153	}	1400	}
1154		1401
1155	$cf::MAP{$key} = $map	1402	$cf::MAP{$path} = $map
1156	}	1403	}
1157	}	1404	}
		1405
		1406	sub pre_load { }
		1407	sub post_load { }
1158		1408
1159	sub load {	1409	sub load {
1160	my ($self) = @_;	1410	my ($self) = @_;
1161		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
1162	return if $self->in_memory != cf::MAP_SWAPPED;	1417	return if $self->in_memory != cf::MAP_SWAPPED;
1163		1418
1164	$self->in_memory (cf::MAP_LOADING);	1419	$self->in_memory (cf::MAP_LOADING);
1165		1420
1166	my $path = $self->{path};
1167
1168	$self->alloc;	1421	$self->alloc;
		1422
		1423	$self->pre_load;
		1424
1169	$self->load_objects ($self->{load_path}, 1)	1425	$self->_load_objects ($self->{load_path}, 1)
1170	or return;	1426	or return;
1171		1427
1172	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1173	if delete $self->{load_original};	1429	if delete $self->{load_original};
1174		1430
1175	if (my $uniq = $path->uniq_path) {	1431	if (my $uniq = $self->uniq_path) {
1176	utf8::encode $uniq;	1432	utf8::encode $uniq;
1177	if (aio_open $uniq, O_RDONLY, 0) {	1433	if (aio_open $uniq, O_RDONLY, 0) {
1178	$self->clear_unique_items;	1434	$self->clear_unique_items;
1179	$self->load_objects ($uniq, 0);	1435	$self->_load_objects ($uniq, 0);
1180	}	1436	}
1181	}	1437	}
		1438
		1439	Coro::cede;
1182		1440
1183	# now do the right thing for maps	1441	# now do the right thing for maps
1184	$self->link_multipart_objects;	1442	$self->link_multipart_objects;
1185		1443
1186	if ($self->{path}->is_style_map) {	1444	unless ($self->{deny_activate}) {
1187	$self->{deny_save} = 1;	1445	$self->decay_objects;
1188	$self->{deny_reset} = 1;
1189	} else {
1190	$self->fix_auto_apply;	1446	$self->fix_auto_apply;
1191	$self->decay_objects;
1192	$self->update_buttons;	1447	$self->update_buttons;
		1448	Coro::cede;
1193	$self->set_darkness_map;	1449	$self->set_darkness_map;
1194	$self->difficulty ($self->estimate_difficulty)	1450	$self->difficulty ($self->estimate_difficulty)
1195	unless $self->difficulty;	1451	unless $self->difficulty;
		1452	Coro::cede;
1196	$self->activate;	1453	$self->activate;
1197	}	1454	}
1198		1455
		1456	$self->post_load;
		1457
1199	$self->in_memory (cf::MAP_IN_MEMORY);	1458	$self->in_memory (cf::MAP_IN_MEMORY);
1200	}	1459	}
1201		1460
1202	sub load_map_sync {	1461	sub customise_for {
		1462	my ($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	$neigh->load;
		1491	}
		1492	}
		1493
		1494	sub find_sync {
1203	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1204		1496
1205	#warn "load_map_sync<$path, $origin>\n";#d#	1497	cf::sync_job { find $path, $origin }
		1498	}
1206		1499
1207	cf::sync_job {	1500	sub do_load_sync {
1208	my $map = cf::map::find_map $path, $origin	1501	my ($map) = @_;
1209	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;
1210	$map->load;	1524	$map->load;
1211	$map	1525
		1526	delete $MAP_PREFETCH{$path};
		1527	}
		1528	}
		1529	undef $MAP_PREFETCHER;
1212	}	1530	};
		1531	$MAP_PREFETCHER->prio (6);
		1532
		1533	()
1213	}	1534	}
1214		1535
1215	sub save {	1536	sub save {
1216	my ($self) = @_;	1537	my ($self) = @_;
1217		1538
1218	my $save = $self->{path}->save_path; utf8::encode $save;	1539	my $lock = cf::lock_acquire "map_data:" . $self->path;
1219	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220		1540
1221	$self->{last_save} = $cf::RUNTIME;	1541	$self->{last_save} = $cf::RUNTIME;
1222		1542
1223	return unless $self->dirty;	1543	return unless $self->dirty;
1224		1544
		1545	my $save = $self->save_path; utf8::encode $save;
		1546	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1547
1225	$self->{load_path} = $save;	1548	$self->{load_path} = $save;
1226		1549
1227	return if $self->{deny_save};	1550	return if $self->{deny_save};
1228		1551
		1552	local $self->{last_access} = $self->last_access;#d#
		1553
		1554	cf::async {
		1555	$_->contr->save for $self->players;
		1556	};
		1557
1229	if ($uniq) {	1558	if ($uniq) {
1230	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1231	$self->save_objects ($uniq, cf::IO_UNIQUES);	1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1232	} else {	1561	} else {
1233	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1234	}	1563	}
1235	}	1564	}
1236		1565
1237	sub swap_out {	1566	sub swap_out {
1238	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;
1239		1573
1240	return if $self->players;	1574	return if $self->players;
1241	return if $self->in_memory != cf::MAP_IN_MEMORY;	1575	return if $self->in_memory != cf::MAP_IN_MEMORY;
1242	return if $self->{deny_save};	1576	return if $self->{deny_save};
1243		1577
1244	$self->save;
1245	$self->clear;	1578	$self->clear;
1246	$self->in_memory (cf::MAP_SWAPPED);	1579	$self->in_memory (cf::MAP_SWAPPED);
1247	}	1580	}
1248		1581
1249	sub reset_at {	1582	sub reset_at {
1250	my ($self) = @_;	1583	my ($self) = @_;
1251		1584
1252	# TODO: safety, remove and allow resettable per-player maps	1585	# TODO: safety, remove and allow resettable per-player maps
1253	return 1e99 if $self->{path}{user_rel};	1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1254	return 1e99 if $self->{deny_reset};	1587	return 1e99 if $self->{deny_reset};
1255		1588
1256	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1257	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1258		1591
…		…
1263	my ($self) = @_;	1596	my ($self) = @_;
1264		1597
1265	$self->reset_at <= $cf::RUNTIME	1598	$self->reset_at <= $cf::RUNTIME
1266	}	1599	}
1267		1600
1268	sub unlink_save {
1269	my ($self) = @_;
1270
1271	utf8::encode (my $save = $self->{path}->save_path);
1272	aioreq_pri 3; IO::AIO::aio_unlink $save;
1273	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1274	}
1275
1276	sub rename {
1277	my ($self, $new_path) = @_;
1278
1279	$self->unlink_save;
1280
1281	delete $cf::MAP{$self->path};
1282	$self->{path} = new cf::path $new_path;
1283	$self->path ($self->{path}->as_string);
1284	$cf::MAP{$self->path} = $self;
1285
1286	$self->save;
1287	}
1288
1289	sub reset {	1601	sub reset {
1290	my ($self) = @_;	1602	my ($self) = @_;
1291		1603
		1604	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1605
1292	return if $self->players;	1606	return if $self->players;
1293	return if $self->{path}{user_rel};#d#	1607	return if $self->isa ("ext::map_per_player");#d#
1294		1608
1295	warn "resetting map ", $self->path;#d#	1609	warn "resetting map ", $self->path;#d#
1296		1610
1297	delete $cf::MAP{$self->path};	1611	delete $cf::MAP{$self->path};
		1612
		1613	$self->in_memory (cf::MAP_SWAPPED);
		1614	$self->clear;
1298		1615
1299	$_->clear_links_to ($self) for values %cf::MAP;	1616	$_->clear_links_to ($self) for values %cf::MAP;
1300		1617
1301	$self->unlink_save;	1618	$self->unlink_save;
1302	$self->destroy;	1619	$self->destroy;
…		…
1305	my $nuke_counter = "aaaa";	1622	my $nuke_counter = "aaaa";
1306		1623
1307	sub nuke {	1624	sub nuke {
1308	my ($self) = @_;	1625	my ($self) = @_;
1309		1626
		1627	delete $cf::MAP{$self->path};
		1628
		1629	$self->unlink_save;
		1630
		1631	bless $self, "cf::map";
		1632	delete $self->{deny_reset};
1310	$self->{deny_save} = 1;	1633	$self->{deny_save} = 1;
1311	$self->reset_timeout (1);	1634	$self->reset_timeout (1);
1312	$self->rename ("{nuke}/" . ($nuke_counter++));	1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1636
		1637	$cf::MAP{$self->path} = $self;
		1638
1313	$self->reset; # polite request, might not happen	1639	$self->reset; # polite request, might not happen
1314	}	1640	}
1315		1641
1316	sub customise_for {	1642	=item cf::map::unique_maps
1317	my ($map, $ob) = @_;
1318		1643
1319	if ($map->per_player) {	1644	Returns an arrayref of paths of all shared maps that have
1320	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1645	instantiated unique items. May block.
1321	}
1322		1646
1323	$map	1647	=cut
1324	}
1325		1648
1326	sub emergency_save {	1649	sub unique_maps() {
1327	local $cf::FREEZE = 1;	1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1651	or return;
1328		1652
1329	warn "enter emergency map save\n";	1653	my @paths;
1330		1654
1331	cf::sync_job {	1655	for (@$files) {
1332	warn "begin emergency map save\n";	1656	utf8::decode $_;
1333	$_->save for values %cf::MAP;	1657	next if /\.pst$/;
		1658	next unless /^$PATH_SEP/o;
		1659
		1660	push @paths, cf::map::normalise $_;
1334	};	1661	}
1335		1662
1336	warn "end emergency map save\n";	1663	\@paths
1337	}	1664	}
1338		1665
1339	package cf;	1666	package cf;
1340		1667
1341	=back	1668	=back
1342		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
1343		1696
1344	=head3 cf::object::player	1697	=head3 cf::object::player
1345		1698
1346	=over 4	1699	=over 4
1347		1700
…		…
1387		1740
1388	=item $player_object->enter_link	1741	=item $player_object->enter_link
1389		1742
1390	Freezes the player and moves him/her to a special map (C<{link}>).	1743	Freezes the player and moves him/her to a special map (C<{link}>).
1391		1744
1392	The player should be reaosnably safe there for short amounts of time. You	1745	The player should be reasonably safe there for short amounts of time. You
1393	I<MUST> call C<leave_link> as soon as possible, though.	1746	I<MUST> call C<leave_link> as soon as possible, though.
1394		1747
		1748	Will never block.
		1749
1395	=item $player_object->leave_link ($map, $x, $y)	1750	=item $player_object->leave_link ($map, $x, $y)
1396		1751
1397	Moves the player out of the specila link map onto the given map. If the	1752	Moves the player out of the special C<{link}> map onto the specified
1398	map is not valid (or omitted), the player will be moved back to the	1753	map. If the map is not valid (or omitted), the player will be moved back
1399	location he/she was before the call to C<enter_link>, or, if that fails,	1754	to the location he/she was before the call to C<enter_link>, or, if that
1400	to the emergency map position.	1755	fails, to the emergency map position.
1401		1756
1402	Might block.	1757	Might block.
1403		1758
1404	=cut	1759	=cut
		1760
		1761	sub link_map {
		1762	unless ($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	$LINK_MAP
		1769	}
1405		1770
1406	sub cf::object::player::enter_link {	1771	sub cf::object::player::enter_link {
1407	my ($self) = @_;	1772	my ($self) = @_;
1408		1773
1409	return if $self->map == $LINK_MAP;	1774	$self->deactivate_recursive;
1410		1775
		1776	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1777
1411	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1412	if $self->map;	1779	if $self->map;
1413		1780
1414	$self->enter_map ($LINK_MAP, 20, 20);	1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1415	$self->deactivate_recursive;
1416	}	1782	}
1417		1783
1418	sub cf::object::player::leave_link {	1784	sub cf::object::player::leave_link {
1419	my ($self, $map, $x, $y) = @_;	1785	my ($self, $map, $x, $y) = @_;
1420		1786
1421	my $link_pos = delete $self->{_link_pos};	1787	my $link_pos = delete $self->{_link_pos};
1422		1788
1423	unless ($map) {	1789	unless ($map) {
1424	# restore original map position	1790	# restore original map position
1425	($map, $x, $y) = @{ $link_pos || [] };	1791	($map, $x, $y) = @{ $link_pos || [] };
1426	$map = cf::map::find_map $map;	1792	$map = cf::map::find $map;
1427		1793
1428	unless ($map) {	1794	unless ($map) {
1429	($map, $x, $y) = @$EMERGENCY_POSITION;	1795	($map, $x, $y) = @$EMERGENCY_POSITION;
1430	$map = cf::map::find_map $map	1796	$map = cf::map::find $map
1431	or die "FATAL: cannot load emergency map\n";	1797	or die "FATAL: cannot load emergency map\n";
1432	}	1798	}
1433	}	1799	}
1434		1800
1435	($x, $y) = (-1, -1)	1801	($x, $y) = (-1, -1)
…		…
1438	# use -1 or undef as default coordinates, not 0, 0	1804	# use -1 or undef as default coordinates, not 0, 0
1439	($x, $y) = ($map->enter_x, $map->enter_y)	1805	($x, $y) = ($map->enter_x, $map->enter_y)
1440	if $x <=0 && $y <= 0;	1806	if $x <=0 && $y <= 0;
1441		1807
1442	$map->load;	1808	$map->load;
		1809	$map->load_diag;
1443		1810
		1811	return unless $self->contr->active;
1444	$self->activate_recursive;	1812	$self->activate_recursive;
1445	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1446	}	1814	}
1447		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($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
1448	=item $player_object->goto_map ($map, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1449		1849
1450	=cut	1850	=cut
1451		1851
1452	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1453	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1454		1854
1455	$self->enter_link;	1855	$self->enter_link;
1456		1856
1457	(Coro::async {	1857	(async {
1458	$path = new cf::path $path;	1858	my $map = eval {
1459
1460	my $map = cf::map::find_map $path->as_string;	1859	my $map = cf::map::find $path;
1461	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1462
1463	warn "entering ", $map->path, " at ($x, $y)\n"
1464	if $map;	1861	$map
1465		1862	} or
1466	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1467		1864
1468	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1469	})->prio (1);	1866	})->prio (1);
1470	}	1867	}
1471		1868
…		…
1475		1872
1476	sub parse_random_map_params {	1873	sub parse_random_map_params {
1477	my ($spec) = @_;	1874	my ($spec) = @_;
1478		1875
1479	my $rmp = { # defaults	1876	my $rmp = { # defaults
1480	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1481	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1482	};	1881	};
1483		1882
1484	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1485	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1486		1885
…		…
1490	$rmp	1889	$rmp
1491	}	1890	}
1492		1891
1493	sub prepare_random_map {	1892	sub prepare_random_map {
1494	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1495		1896
1496	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1497	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1498	# that depends on the exit object	1899	# that depends on the exit object
1499		1900
1500	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1501		1902
1502	if ($exit->map) {	1903	if ($exit->map) {
1503	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1504	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1505	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1506	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1507	}	1908	}
1508		1909
1509	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1510		1911
1511	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1512	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1513		1915
1514	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) {
1515	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;
1516		1920
1517	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1518	$exit->msg (undef);	1922	$exit->msg (undef);
1519	}	1923	}
1520	}	1924	}
…		…
1522	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1523	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1524		1928
1525	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1526		1930
		1931	if ($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
1527	$self->enter_link;	1940	$self->enter_link;
1528		1941
1529	(Coro::async {	1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
1530	unless (eval {	1944	unless (eval {
1531		1945	$self->goto ($slaying, $hp, $sp);
1532	prepare_random_map $exit
1533	if $exit->slaying eq "/!";
1534
1535	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1536	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1537		1946
1538	1;	1947	1;
1539	}) {	1948	}) {
1540	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1541	. "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. "
1542	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1543	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1544		1953
1545	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1546	$self->leave_link;	1955	$self->leave_link;
1547	}	1956	}
…		…
1598	on_reply => sub {	2007	on_reply => sub {
1599	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
1600		2009
1601	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
1602	# get handled first	2011	# get handled first
1603	my $queue = delete $ns->{query_queue};	2012	my $queue = delete $ns->{query_queue}
		2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1604		2014
1605	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1606		2017
1607	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1608		2019
1609	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1610	if (@$queue) {	2021	if (@$queue) {
…		…
1614	}	2025	}
1615	}	2026	}
1616	},	2027	},
1617	);	2028	);
1618		2029
1619	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1620		2031
1621	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1622	be automatically cancelled when the client gets destroyed (e.g. on logout,	2033	be automatically cancelled when the client gets destroyed (e.g. on logout,
1623	or loss of connection).	2034	or loss of connection).
1624		2035
1625	=cut	2036	=cut
1626		2037
1627	sub cf::client::coro {	2038	sub cf::client::async {
1628	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1629		2040
1630	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1631	eval {
1632	$cb->();
1633	};
1634	warn $@ if $@;
1635	};
1636		2042
1637	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1638	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1639	});	2045	});
1640		2046
…		…
1812		2218
1813	{	2219	{
1814	my $path = cf::localdir . "/database.pst";	2220	my $path = cf::localdir . "/database.pst";
1815		2221
1816	sub db_load() {	2222	sub db_load() {
1817	warn "loading database $path\n";#d# remove later
1818	$DB = stat $path ? Storable::retrieve $path : { };	2223	$DB = stat $path ? Storable::retrieve $path : { };
1819	}	2224	}
1820		2225
1821	my $pid;	2226	my $pid;
1822		2227
1823	sub db_save() {	2228	sub db_save() {
1824	warn "saving database $path\n";#d# remove later
1825	waitpid $pid, 0 if $pid;	2229	waitpid $pid, 0 if $pid;
1826	if (0 == ($pid = fork)) {	2230	if (0 == ($pid = fork)) {
1827	$DB->{_meta}{version} = 1;	2231	$DB->{_meta}{version} = 1;
1828	Storable::nstore $DB, "$path~";	2232	Storable::nstore $DB, "$path~";
1829	rename "$path~", $path;	2233	rename "$path~", $path;
…		…
1836	sub db_sync() {	2240	sub db_sync() {
1837	db_save if $dirty;	2241	db_save if $dirty;
1838	undef $dirty;	2242	undef $dirty;
1839	}	2243	}
1840		2244
1841	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2245	my $idle = Event->idle (
1842	db_sync;	2246	reentrant => 0,
		2247	min => 10,
		2248	max => 20,
		2249	repeat => 0,
		2250	data => WF_AUTOCANCEL,
		2251	cb => \&db_sync,
1843	});	2252	);
1844		2253
1845	sub db_dirty() {	2254	sub db_dirty() {
1846	$dirty = 1;	2255	$dirty = 1;
1847	$idle->start;	2256	$idle->start;
1848	}	2257	}
…		…
1869	},	2278	},
1870	);	2279	);
1871	}	2280	}
1872		2281
1873	#############################################################################	2282	#############################################################################
1874	# 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	}
1875		2289
1876	sub cfg_load {	2290	sub cfg_load {
1877	open my $fh, "<:utf8", cf::confdir . "/config"	2291	open my $fh, "<:utf8", cf::confdir . "/config"
1878	or return;	2292	or return;
1879		2293
1880	local $/;	2294	local $/;
1881	*CFG = YAML::Syck::Load <$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;
1882	}	2313	}
1883		2314
1884	sub main {	2315	sub main {
1885	# we must not ever block the main coroutine	2316	# we must not ever block the main coroutine
1886	local $Coro::idle = sub {	2317	local $Coro::idle = sub {
1887	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1888	(Coro::unblock_sub {	2319	(async {
1889	Event::one_event;	2320	Event::one_event;
1890	})->();	2321	})->prio (Coro::PRIO_MAX);
1891	};	2322	};
1892		2323
1893	cfg_load;	2324	cfg_load;
1894	db_load;	2325	db_load;
1895	load_extensions;	2326	load_extensions;
		2327
		2328	$TICK_WATCHER->start;
1896	Event::loop;	2329	Event::loop;
1897	}	2330	}
1898		2331
1899	#############################################################################	2332	#############################################################################
1900	# initialisation	2333	# initialisation and cleanup
		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	$map->save;
		2372	}
		2373	warn "end emergency map save\n";
		2374	};
		2375
		2376	warn "leave emergency perl save\n";
		2377	}
1901		2378
1902	sub reload() {	2379	sub reload() {
1903	# can/must only be called in main	2380	# can/must only be called in main
1904	if ($Coro::current != $Coro::main) {	2381	if ($Coro::current != $Coro::main) {
1905	warn "can only reload from main coroutine\n";	2382	warn "can only reload from main coroutine";
1906	return;	2383	return;
1907	}	2384	}
1908		2385
1909	warn "reloading...";	2386	warn "reloading...";
1910		2387
1911	local $FREEZE = 1;	2388	warn "cancelling server ticker";
		2389	$TICK_WATCHER->cancel;
		2390
1912	cf::emergency_save;	2391	cf::emergency_save;
1913		2392
1914	eval {	2393	eval {
1915	# 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
1916		2395
1917	# cancel all watchers	2396	warn "syncing database to disk";
		2397	cf::db_sync;
		2398
		2399	warn "cancelling all WF_AUTOCANCEL watchers";
1918	for (Event::all_watchers) {	2400	for (Event::all_watchers) {
1919	$_->cancel if $_->data & WF_AUTOCANCEL;	2401	$_->cancel if $_->data & WF_AUTOCANCEL;
1920	}	2402	}
1921		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
1922	# cancel all extension coros	2412	warn "cancelling all extension coros";
1923	$_->cancel for values %EXT_CORO;	2413	$_->cancel for values %EXT_CORO;
1924	%EXT_CORO = ();	2414	%EXT_CORO = ();
1925		2415
1926	# unload all extensions	2416	warn "removing commands";
1927	for (@exts) {	2417	%COMMAND = ();
		2418
		2419	warn "removing ext commands";
		2420	%EXTCMD = ();
		2421
		2422	warn "unloading/nuking all extensions";
		2423	for my $pkg (@EXTS) {
1928	warn "unloading <$_>";	2424	warn "... unloading $pkg";
1929	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: $@";
1930	}	2431	}
1931		2432
		2433	warn "... nuking $pkg";
		2434	Symbol::delete_package $pkg;
		2435	}
		2436
1932	# unload all modules loaded from $LIBDIR	2437	warn "unloading all perl modules loaded from $LIBDIR";
1933	while (my ($k, $v) = each %INC) {	2438	while (my ($k, $v) = each %INC) {
1934	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1935		2440
1936	warn "removing <$k>";	2441	warn "... unloading $k";
1937	delete $INC{$k};	2442	delete $INC{$k};
1938		2443
1939	$k =~ s/\.pm$//;	2444	$k =~ s/\.pm$//;
1940	$k =~ s/\//::/g;	2445	$k =~ s/\//::/g;
1941		2446
…		…
1944	}	2449	}
1945		2450
1946	Symbol::delete_package $k;	2451	Symbol::delete_package $k;
1947	}	2452	}
1948		2453
1949	# sync database to disk
1950	cf::db_sync;
1951	IO::AIO::flush;
1952
1953	# get rid of safe::, as good as possible	2454	warn "getting rid of safe::, as good as possible";
1954	Symbol::delete_package "safe::$_"	2455	Symbol::delete_package "safe::$_"
1955	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);
1956		2457
1957	# remove register_script_function callbacks
1958	# TODO
1959
1960	# unload cf.pm "a bit"	2458	warn "unloading cf.pm \"a bit\"";
1961	delete $INC{"cf.pm"};	2459	delete $INC{"cf.pm"};
1962		2460
1963	# don't, removes xs symbols, too,	2461	# don't, removes xs symbols, too,
1964	# and global variables created in xs	2462	# and global variables created in xs
1965	#Symbol::delete_package __PACKAGE__;	2463	#Symbol::delete_package __PACKAGE__;
1966		2464
1967	# reload cf.pm	2465	warn "unload completed, starting to reload now";
		2466
1968	warn "reloading cf.pm";	2467	warn "reloading cf.pm";
1969	require cf;	2468	require cf;
1970	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1971		2470
1972	# load config and database again	2471	warn "loading config and database again";
1973	cf::cfg_load;	2472	cf::cfg_load;
1974	cf::db_load;	2473	cf::db_load;
1975		2474
1976	# load extensions
1977	warn "load extensions";	2475	warn "loading extensions";
1978	cf::load_extensions;	2476	cf::load_extensions;
1979		2477
1980	# reattach attachments to objects	2478	warn "reattaching attachments to objects/players";
1981	warn "reattach";
1982	_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	$TICK_WATCHER->start;
1983	};	2489	};
1984		2490
1985	if ($@) {	2491	if ($@) {
1986	warn $@;	2492	warn $@;
1987	warn "error while reloading, exiting.";	2493	warn "error while reloading, exiting.";
1988	exit 1;	2494	exit 1;
1989	}	2495	}
1990		2496
1991	warn "reloaded successfully";	2497	warn "reloaded";
1992	};	2498	};
1993		2499
1994	#############################################################################	2500	our $RELOAD_WATCHER; # used only during reload
1995
1996	unless ($LINK_MAP) {
1997	$LINK_MAP = cf::map::new;
1998
1999	$LINK_MAP->width (41);
2000	$LINK_MAP->height (41);
2001	$LINK_MAP->alloc;
2002	$LINK_MAP->path ("{link}");
2003	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2004	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2005
2006	# dirty hack because... archetypes are not yet loaded
2007	Event->timer (
2008	after => 2,
2009	cb => sub {
2010	$_[0]->w->cancel;
2011
2012	# provide some exits "home"
2013	my $exit = cf::object::new "exit";
2014
2015	$exit->slaying ($EMERGENCY_POSITION->[0]);
2016	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2017	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2018
2019	$LINK_MAP->insert ($exit->clone, 19, 19);
2020	$LINK_MAP->insert ($exit->clone, 19, 20);
2021	$LINK_MAP->insert ($exit->clone, 19, 21);
2022	$LINK_MAP->insert ($exit->clone, 20, 19);
2023	$LINK_MAP->insert ($exit->clone, 20, 21);
2024	$LINK_MAP->insert ($exit->clone, 21, 19);
2025	$LINK_MAP->insert ($exit->clone, 21, 20);
2026	$LINK_MAP->insert ($exit->clone, 21, 21);
2027
2028	$exit->destroy;
2029	});
2030
2031	$LINK_MAP->{deny_save} = 1;
2032	$LINK_MAP->{deny_reset} = 1;
2033
2034	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2035	}
2036
2037	register "<global>", __PACKAGE__;
2038		2501
2039	register_command "reload" => sub {	2502	register_command "reload" => sub {
2040	my ($who, $arg) = @_;	2503	my ($who, $arg) = @_;
2041		2504
2042	if ($who->flag (FLAG_WIZ)) {	2505	if ($who->flag (FLAG_WIZ)) {
2043	$who->message ("start 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 {
2044	reload;	2516	reload;
2045	$who->message ("end of reload.");	2517	undef $RELOAD_WATCHER;
		2518	},
		2519	);
2046	}	2520	}
2047	};	2521	};
2048		2522
2049	unshift @INC, $LIBDIR;	2523	unshift @INC, $LIBDIR;
		2524
		2525	my $bug_warning = 0;
2050		2526
2051	$TICK_WATCHER = Event->timer (	2527	$TICK_WATCHER = Event->timer (
2052	reentrant => 0,	2528	reentrant => 0,
		2529	parked => 1,
2053	prio => 0,	2530	prio => 0,
2054	at => $NEXT_TICK || $TICK,	2531	at => $NEXT_TICK || $TICK,
2055	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
2056	cb => sub {	2533	cb => sub {
2057	unless ($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
2058	cf::server_tick; # one server iteration	2542	cf::server_tick; # one server iteration
2059	$RUNTIME += $TICK;	2543	$RUNTIME += $TICK;
2060	}
2061
2062	$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#
2063		2554
2064	# 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
2065	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2066		2557
2067	$TICK_WATCHER->at ($NEXT_TICK);	2558	$TICK_WATCHER->at ($NEXT_TICK);
2068	$TICK_WATCHER->start;	2559	$TICK_WATCHER->start;
2069	},	2560	},
2070	);	2561	);
2071		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	};
		2605	}
		2606	}
		2607
		2608	{
		2609	IO::AIO::min_parallel 8;
		2610
		2611	undef $Coro::AIO::WATCHER;
2072	IO::AIO::max_poll_time $TICK * 0.2;	2612	IO::AIO::max_poll_time $TICK * 0.1;
2073		2613	$AIO_POLL_WATCHER = Event->io (
2074	Event->io (	2614	reentrant => 0,
2075	fd => IO::AIO::poll_fileno,	2615	fd => IO::AIO::poll_fileno,
2076	poll => 'r',	2616	poll => 'r',
2077	prio => 5,	2617	prio => 6,
2078	data => WF_AUTOCANCEL,	2618	data => WF_AUTOCANCEL,
2079	cb => \&IO::AIO::poll_cb,	2619	cb => \&IO::AIO::poll_cb,
2080	);	2620	);
		2621	}
2081		2622
2082	Event->timer (	2623	$WRITE_RUNTIME_WATCHER = Event->timer (
		2624	reentrant => 0,
2083	data => WF_AUTOCANCEL,	2625	data => WF_AUTOCANCEL,
2084	after => 0,	2626	after => 1,
2085	interval => 10,	2627	interval => 10,
2086	cb => sub {	2628	prio => 6, # keep it lowest so it acts like a watchdog
2087	(Coro::unblock_sub {	2629	cb => Coro::unblock_sub {
2088	write_runtime	2630	write_runtime
2089	or warn "ERROR: unable to write runtime file: $!";	2631	or warn "ERROR: unable to write runtime file: $!";
2090	})->();
2091	},	2632	},
2092	);	2633	);
2093		2634
		2635	END { cf::emergency_save }
		2636
2094	1	2637	1
2095		2638

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