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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3 ();	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
55	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		78
57	binmode STDOUT;	79	binmode STDOUT;
58	binmode STDERR;	80	binmode STDERR;
59		81
60	# read virtual server time, if available	82	# read virtual server time, if available
…		…
67	mkdir cf::localdir;	89	mkdir cf::localdir;
68	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
72		95
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	96	our $EMERGENCY_POSITION;
		97
		98	sub cf::map::normalise;
76		99
77	#############################################################################	100	#############################################################################
78		101
79	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
80		103
…		…
104		127
105	=item %cf::CFG	128	=item %cf::CFG
106		129
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
109		139
110	=back	140	=back
111		141
112	=cut	142	=cut
113		143
…		…
117	utf8::encode $msg;	147	utf8::encode $msg;
118		148
119	$msg .= "\n"	149	$msg .= "\n"
120	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
121		151
122	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
123	};	153	};
124	}	154	}
125		155
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		175
146	$Event::DIED = sub {	176	$Event::DIED = sub {
147	warn "error in event callback: @_";	177	warn "error in event callback: @_";
148	};	178	};
149		179
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
155		181
156	=over 4	182	=over 4
157		183
		184	=item dumpval $ref
		185
158	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
159		206
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
161		208
162	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
163		210
…		…
179	sub to_json($) {	226	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
182	}	229	}
183		230
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	231	=item cf::lock_wait $string
207		232
208	Wait until the given lock is available. See cf::lock_acquire.	233	Wait until the given lock is available. See cf::lock_acquire.
209		234
210	=item my $lock = cf::lock_acquire $string	235	=item my $lock = cf::lock_acquire $string
211		236
212	Wait until the given lock is available and then acquires it and returns	237	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	239	for example when the coroutine gets canceled), the lock is automatically
215	returned.	240	returned.
216		241
217	Lock names should begin with a unique identifier (for example, cf::map::find	242	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	243	uses map_find and cf::map::load uses map_load).
…		…
237	# wait, to be sure we are not locked	262	# wait, to be sure we are not locked
238	lock_wait $key;	263	lock_wait $key;
239		264
240	$LOCK{$key} = [];	265	$LOCK{$key} = [];
241		266
242	cf::guard {	267	Coro::guard {
243	# wake up all waiters, to be on the safe side	268	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	269	$_->ready for @{ delete $LOCK{$key} };
245	}	270	}
246	}	271	}
247		272
248	=item cf::async { BLOCK }
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {	273	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	274	return unless $TICK_WATCHER->is_active;
266		275
267	my $guard = guard { $TICK_WATCHER->start };	276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
268	$TICK_WATCHER->stop;	279	$TICK_WATCHER->stop;
269	$guard	280	$guard
270	}	281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
271		292
272	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
273		294
274	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
275	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
294	my $freeze_guard = freeze_mainloop;	315	my $freeze_guard = freeze_mainloop;
295		316
296	my $busy = 1;	317	my $busy = 1;
297	my @res;	318	my @res;
298		319
299	(Coro::async {	320	(async {
300	@res = eval { $job->() };	321	@res = eval { $job->() };
301	warn $@ if $@;	322	warn $@ if $@;
302	undef $busy;	323	undef $busy;
303	})->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
304		325
305	while ($busy) {	326	while ($busy) {
306	Coro::cede_notself;	327	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	328	}
309		329
310	wantarray ? @res : $res[0]	330	wantarray ? @res : $res[0]
311	} else {	331	} else {
312	# we are in another coroutine, how wonderful, everything just works	332	# we are in another coroutine, how wonderful, everything just works
313		333
314	$job->()	334	$job->()
315	}	335	}
316	}	336	}
317		337
318	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
319		339
320	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
322		342
323	=cut	343	=cut
324		344
325	sub coro(&) {	345	sub async_ext(&) {
326	my $cb = shift;	346	my $cb = shift;
327		347
328	my $coro = &cf::async ($cb);	348	my $coro = &Coro::async ($cb);
329		349
330	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
332	});	352	});
333	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
334		354
335	$coro	355	$coro
336	}	356	}
337		357
338	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
339	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
340		362
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	364	or return;
343		365
		366	my $value = $cf::RUNTIME + 90 + 10;
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	371	and return;
347		372
		373	# always fsync - this file is important
348	aio_fsync $fh	374	aio_fsync $fh
349	and return;	375	and return;
350		376
351	close $fh	377	close $fh
352	or return;	378	or return;
…		…
358	}	384	}
359		385
360	=back	386	=back
361		387
362	=cut	388	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		389
484	#############################################################################	390	#############################################################################
485		391
486	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
487		393
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	520	our @CB_MAP = ();
615		521
616	my %attachment;	522	my %attachment;
617		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
618	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
620		532
621	use sort 'stable';	533	use sort 'stable';
622		534
…		…
793	# object support	705	# object support
794		706
795	sub reattach {	707	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		712
799	my $registry = $obj->registry;	713	my $registry = $obj->registry;
800		714
801	@$registry = ();	715	@$registry = ();
802		716
…		…
849	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
850		764
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	769	close $fh;
856		770
857	if (@$objs) {	771	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	777	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
865	}	779	}
866	} else {	780	} else {
867	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
934	=cut	848	=cut
935		849
936	sub register_extcmd {	850	sub register_extcmd {
937	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
938		852
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
943	}	854	}
944		855
945	cf::player->attach (	856	cf::player->attach (
946	on_command => sub {	857	on_command => sub {
947	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
960		871
961	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
962		873
963	if (ref $msg) {	874	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	878	}
968	}	879	}
969	} else {	880	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		883
973	cf::override;	884	cf::override;
974	},	885	},
975	);	886	);
976		887
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	888	sub load_extension {
984	my ($path) = @_;	889	my ($path) = @_;
985		890
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	892	my $base = $1;
988	my $pkg = $1;	893	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
991		896
992	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
993		898
994	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
995	or die "$path: $!";	900	or die "$path: $!";
996		901
997	my $source =	902	my $source =
998	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
1001	. "\n};\n1";	906	. "\n};\n1";
1002		907
1003	eval $source	908	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	910	: "extension disabled.\n";
1006		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	912	warn $@;
1008	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
1009		914	exit 1;
1010	# no strict 'refs';	915	}
1011	# @{"$pkg\::ISA"} = ext::;	916	die $@;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	917	}
1026		918
1027	# remove commands	919	push @EXTS, $pkg;
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	920	}
1052		921
1053	sub load_extensions {	922	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	924	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
1060	}	929	}
1061	}	930	}
1062		931
1063	#############################################################################	932	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100		933
1101	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1102		935
1103	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1104		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1105	=head3 cf::player	944	=head3 cf::player
1106		945
1107	=over 4	946	=over 4
1108		947
1109	=item cf::player::exists $login	948	=item cf::player::find $login
1110		949
1111	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1112		951
1113	=cut	952	=cut
1114		953
1115	sub cf::player::exists($) {	954	sub playerdir($) {
1116	cf::player::find $_[0]	955	cf::localdir
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	956	. "/"
		957	. cf::playerdir
		958	. "/"
		959	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		960	}
		961
		962	sub path($) {
		963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		964
		965	(playerdir $login) . "/$login.pl"
		966	}
		967
		968	sub find_active($) {
		969	$cf::PLAYER{$_[0]}
		970	and $cf::PLAYER{$_[0]}->active
		971	and $cf::PLAYER{$_[0]}
		972	}
		973
		974	sub exists($) {
		975	my ($login) = @_;
		976
		977	$cf::PLAYER{$login}
		978	or cf::sync_job { !aio_stat path $login }
		979	}
		980
		981	sub find($) {
		982	return $cf::PLAYER{$_[0]} || do {
		983	my $login = $_[0];
		984
		985	my $guard = cf::lock_acquire "user_find:$login";
		986
		987	$cf::PLAYER{$_[0]} || do {
		988	my $pl = load_pl path $login
		989	or return;
		990	$cf::PLAYER{$login} = $pl
		991	}
		992	}
		993	}
		994
		995	sub save($) {
		996	my ($pl) = @_;
		997
		998	return if $pl->{deny_save};
		999
		1000	my $path = path $pl;
		1001	my $guard = cf::lock_acquire "user_save:$path";
		1002
		1003	return if $pl->{deny_save};
		1004
		1005	aio_mkdir playerdir $pl, 0770;
		1006	$pl->{last_save} = $cf::RUNTIME;
		1007
		1008	$pl->save_pl ($path);
		1009	Coro::cede;
		1010	}
		1011
		1012	sub new($) {
		1013	my ($login) = @_;
		1014
		1015	my $self = create;
		1016
		1017	$self->ob->name ($login);
		1018	$self->{deny_save} = 1;
		1019
		1020	$cf::PLAYER{$login} = $self;
		1021
		1022	$self
		1023	}
		1024
		1025	=item $pl->quit_character
		1026
		1027	Nukes the player without looking back. If logged in, the connection will
		1028	be destroyed. May block for a long time.
		1029
		1030	=cut
		1031
		1032	sub quit_character {
		1033	my ($pl) = @_;
		1034
		1035	$pl->{deny_save} = 1;
		1036	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1037
		1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1039	$pl->deactivate;
		1040	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1041	$pl->ns->destroy if $pl->ns;
		1042
		1043	my $path = playerdir $pl;
		1044	my $temp = "$path~$cf::RUNTIME~deleting~";
		1045	aio_rename $path, $temp;
		1046	delete $cf::PLAYER{$pl->ob->name};
		1047	$pl->destroy;
		1048	IO::AIO::aio_rmtree $temp;
		1049	}
		1050
		1051	=item cf::player::list_logins
		1052
		1053	Returns am arrayref of all valid playernames in the system, can take a
		1054	while and may block, so not sync_job-capable, ever.
		1055
		1056	=cut
		1057
		1058	sub list_logins {
		1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1060	or return [];
		1061
		1062	my @logins;
		1063
		1064	for my $login (@$dirs) {
		1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1066	aio_read $fh, 0, 512, my $buf, 0 or next;
		1067	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1068
		1069	utf8::decode $login;
		1070	push @logins, $login;
		1071	}
		1072
		1073	\@logins
		1074	}
		1075
		1076	=item $player->maps
		1077
		1078	Returns an arrayref of map paths that are private for this
		1079	player. May block.
		1080
		1081	=cut
		1082
		1083	sub maps($) {
		1084	my ($pl) = @_;
		1085
		1086	$pl = ref $pl ? $pl->ob->name : $pl;
		1087
		1088	my $files = aio_readdir playerdir $pl
		1089	or return;
		1090
		1091	my @paths;
		1092
		1093	for (@$files) {
		1094	utf8::decode $_;
		1095	next if /\.(?:pl|pst)$/;
		1096	next unless /^$PATH_SEP/o;
		1097
		1098	push @paths, cf::map::normalise "~$pl/$_";
		1099	}
		1100
		1101	\@paths
1118	}	1102	}
1119		1103
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121		1105
1122	Sends an ext reply to the player.	1106	Sends an ext reply to the player.
1123		1107
1124	=cut	1108	=cut
1125		1109
1126	sub cf::player::ext_reply($$$%) {	1110	sub ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;	1111	my ($self, $id, %msg) = @_;
1128		1112
1129	$msg{msgid} = $id;	1113	$msg{msgid} = $id;
1130		1114
1131	$self->send ("ext " . to_json \%msg);	1115	$self->send ("ext " . cf::to_json \%msg);
1132	}	1116	}
		1117
		1118	package cf;
1133		1119
1134	=back	1120	=back
1135		1121
1136		1122
1137	=head3 cf::map	1123	=head3 cf::map
…		…
1143	package cf::map;	1129	package cf::map;
1144		1130
1145	use Fcntl;	1131	use Fcntl;
1146	use Coro::AIO;	1132	use Coro::AIO;
1147		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
1148	our $MAX_RESET = 3600;	1138	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1139	our $DEFAULT_RESET = 3000;
1150		1140
1151	sub generate_random_map {	1141	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1142	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1143	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1144	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1148	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1149	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1153	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1155	(cf::region::find $rmp->{region}), $rmp->{custom}
		1156	)
		1157	}
		1158
		1159	=item cf::map->register ($regex, $prio)
		1160
		1161	Register a handler for the map path matching the given regex at the
		1162	givne priority (higher is better, built-in handlers have priority 0, the
		1163	default).
		1164
		1165	=cut
		1166
		1167	sub register {
		1168	my (undef, $regex, $prio) = @_;
		1169	my $pkg = caller;
		1170
		1171	no strict;
		1172	push @{"$pkg\::ISA"}, __PACKAGE__;
		1173
		1174	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1175	}
		1176
		1177	# also paths starting with '/'
		1178	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1179
		1180	sub thawer_merge {
		1181	my ($self, $merge) = @_;
		1182
		1183	# we have to keep some variables in memory intact
		1184	local $self->{path};
		1185	local $self->{load_path};
		1186	local $self->{deny_save};
		1187	local $self->{deny_reset};
		1188
		1189	$self->SUPER::thawer_merge ($merge);
		1190	}
		1191
		1192	sub normalise {
		1193	my ($path, $base) = @_;
		1194
		1195	$path = "$path"; # make sure its a string
		1196
		1197	$path =~ s/\.map$//;
		1198
		1199	# map plan:
		1200	#
		1201	# /! non-realised random map exit (special hack!)
		1202	# {... are special paths that are not being touched
		1203	# ?xxx/... are special absolute paths
		1204	# ?random/... random maps
		1205	# /... normal maps
		1206	# ~user/... per-player map of a specific user
		1207
		1208	$path =~ s/$PATH_SEP/\//go;
		1209
		1210	# treat it as relative path if it starts with
		1211	# something that looks reasonable
		1212	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1213	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1214
		1215	$base =~ s{[^/]+/?$}{};
		1216	$path = "$base/$path";
		1217	}
		1218
		1219	for ($path) {
		1220	redo if s{//}{/};
		1221	redo if s{/\.?/}{/};
		1222	redo if s{/[^/]+/\.\./}{/};
		1223	}
		1224
		1225	$path
		1226	}
		1227
		1228	sub new_from_path {
		1229	my (undef, $path, $base) = @_;
		1230
		1231	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1232
		1233	$path = normalise $path, $base;
		1234
		1235	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1236	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1237	my $self = bless cf::map::new, $pkg;
		1238	$self->{path} = $path; $self->path ($path);
		1239	$self->init; # pass $1 etc.
		1240	return $self;
		1241	}
		1242	}
		1243
		1244	Carp::carp "unable to resolve path '$path' (base '$base').";
		1245	()
		1246	}
		1247
		1248	sub init {
		1249	my ($self) = @_;
		1250
		1251	$self
		1252	}
		1253
		1254	sub as_string {
		1255	my ($self) = @_;
		1256
		1257	"$self->{path}"
		1258	}
		1259
		1260	# the displayed name, this is a one way mapping
		1261	sub visible_name {
		1262	&as_string
		1263	}
		1264
		1265	# the original (read-only) location
		1266	sub load_path {
		1267	my ($self) = @_;
		1268
		1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1270	}
		1271
		1272	# the temporary/swap location
		1273	sub save_path {
		1274	my ($self) = @_;
		1275
		1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1278	}
		1279
		1280	# the unique path, undef == no special unique path
		1281	sub uniq_path {
		1282	my ($self) = @_;
		1283
		1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1168	}	1286	}
1169		1287
1170	# and all this just because we cannot iterate over	1288	# and all this just because we cannot iterate over
1171	# all maps in C++...	1289	# all maps in C++...
1172	sub change_all_map_light {	1290	sub change_all_map_light {
…		…
1174		1292
1175	$_->change_map_light ($change)	1293	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1294	for grep $_->outdoor, values %cf::MAP;
1177	}	1295	}
1178		1296
		1297	sub unlink_save {
		1298	my ($self) = @_;
		1299
		1300	utf8::encode (my $save = $self->save_path);
		1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1303	}
		1304
1179	sub try_load_header($) {	1305	sub load_header_from($) {
1180	my ($path) = @_;	1306	my ($self, $path) = @_;
1181		1307
1182	utf8::encode $path;	1308	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
1184	or return;	1313	or return;
1185		1314
1186	my $map = cf::map::new	1315	$self->{load_path} = $path;
		1316
		1317	1
		1318	}
		1319
		1320	sub load_header_orig {
		1321	my ($self) = @_;
		1322
		1323	$self->load_header_from ($self->load_path)
		1324	}
		1325
		1326	sub load_header_temp {
		1327	my ($self) = @_;
		1328
		1329	$self->load_header_from ($self->save_path)
		1330	}
		1331
		1332	sub prepare_temp {
		1333	my ($self) = @_;
		1334
		1335	$self->last_access ((delete $self->{last_access})
		1336	|| $cf::RUNTIME); #d#
		1337	# safety
		1338	$self->{instantiate_time} = $cf::RUNTIME
		1339	if $self->{instantiate_time} > $cf::RUNTIME;
		1340	}
		1341
		1342	sub prepare_orig {
		1343	my ($self) = @_;
		1344
		1345	$self->{load_original} = 1;
		1346	$self->{instantiate_time} = $cf::RUNTIME;
		1347	$self->last_access ($cf::RUNTIME);
		1348	$self->instantiate;
		1349	}
		1350
		1351	sub load_header {
		1352	my ($self) = @_;
		1353
		1354	if ($self->load_header_temp) {
		1355	$self->prepare_temp;
		1356	} else {
		1357	$self->load_header_orig
1187	or return;	1358	or return;
		1359	$self->prepare_orig;
		1360	}
1188		1361
1189	$map->load_header ($path)	1362	1
1190	or return;
1191
1192	$map->{load_path} = $path;
1193
1194	$map
1195	}	1363	}
1196		1364
1197	sub find;	1365	sub find;
1198	sub find {	1366	sub find {
1199	my ($path, $origin) = @_;	1367	my ($path, $origin) = @_;
1200		1368
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1369	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1370
1206	cf::lock_wait "map_find:$key";	1371	cf::lock_wait "map_find:$path";
1207		1372
1208	$cf::MAP{$key} || do {	1373	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1374	my $guard = cf::lock_acquire "map_find:$path";
1210		1375	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1376	or return;
1228		1377
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1378	$map->{last_save} = $cf::RUNTIME;
1241		1379
1242	if ($map->should_reset) {	1380	$map->load_header
		1381	or return;
		1382
		1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1384	# doing this can freeze the server in a sync job, obviously
		1385	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1386	$map->reset;
1244	undef $guard;	1387	undef $guard;
1245	$map = find $path	1388	return find $path;
1246	or return;
1247	}	1389	}
1248		1390
1249	$cf::MAP{$key} = $map	1391	$cf::MAP{$path} = $map
1250	}	1392	}
1251	}	1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
1252		1397
1253	sub load {	1398	sub load {
1254	my ($self) = @_;	1399	my ($self) = @_;
1255		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
1256	my $path = $self->{path};	1403	my $path = $self->{path};
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1404	my $guard = cf::lock_acquire "map_load:$path";
1258		1405
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1406	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1407
1261	$self->in_memory (cf::MAP_LOADING);	1408	$self->in_memory (cf::MAP_LOADING);
1262		1409
1263	$self->alloc;	1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
1264	$self->load_objects ($self->{load_path}, 1)	1414	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1415	or return;
1266		1416
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1418	if delete $self->{load_original};
1269		1419
1270	if (my $uniq = $path->uniq_path) {	1420	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1421	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1422	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1423	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1424	$self->_load_objects ($uniq, 0);
1275	}	1425	}
1276	}	1426	}
		1427
		1428	Coro::cede;
1277		1429
1278	# now do the right thing for maps	1430	# now do the right thing for maps
1279	$self->link_multipart_objects;	1431	$self->link_multipart_objects;
1280		1432
1281	if ($self->{path}->is_style_map) {	1433	unless ($self->{deny_activate}) {
1282	$self->{deny_save} = 1;	1434	$self->decay_objects;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;	1435	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;	1436	$self->update_buttons;
		1437	Coro::cede;
1288	$self->set_darkness_map;	1438	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1439	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1440	unless $self->difficulty;
		1441	Coro::cede;
1291	$self->activate;	1442	$self->activate;
1292	}	1443	}
1293		1444
		1445	$self->post_load;
		1446
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1447	$self->in_memory (cf::MAP_IN_MEMORY);
		1448	}
		1449
		1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
		1461	my ($map) = @_;
		1462
		1463	my @diag; # diagonal neighbours
		1464
		1465	for (0 .. 3) {
		1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
		1471
		1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
		1475
		1476	for (@diag) {
		1477	my $neigh = find @$_
		1478	or next;
		1479	$neigh->load;
		1480	}
1295	}	1481	}
1296		1482
1297	sub find_sync {	1483	sub find_sync {
1298	my ($path, $origin) = @_;	1484	my ($path, $origin) = @_;
1299		1485
1300	cf::sync_job { cf::map::find $path, $origin }	1486	cf::sync_job { find $path, $origin }
1301	}	1487	}
1302		1488
1303	sub do_load_sync {	1489	sub do_load_sync {
1304	my ($map) = @_;	1490	my ($map) = @_;
1305		1491
1306	cf::sync_job { $map->load };	1492	cf::sync_job { $map->load };
1307	}	1493	}
1308		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
		1513	$map->load;
		1514
		1515	delete $MAP_PREFETCH{$path};
		1516	}
		1517	}
		1518	undef $MAP_PREFETCHER;
		1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
		1523	}
		1524
1309	sub save {	1525	sub save {
1310	my ($self) = @_;	1526	my ($self) = @_;
1311		1527
		1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1529
1312	$self->{last_save} = $cf::RUNTIME;	1530	$self->{last_save} = $cf::RUNTIME;
1313		1531
1314	return unless $self->dirty;	1532	return unless $self->dirty;
1315		1533
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1534	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1536
1319	$self->{load_path} = $save;	1537	$self->{load_path} = $save;
1320		1538
1321	return if $self->{deny_save};	1539	return if $self->{deny_save};
1322		1540
1323	local $self->{last_access} = $self->last_access;#d#	1541	local $self->{last_access} = $self->last_access;#d#
1324		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
		1546
1325	if ($uniq) {	1547	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1550	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1551	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1552	}
1331	}	1553	}
1332		1554
1333	sub swap_out {	1555	sub swap_out {
1334	my ($self) = @_;	1556	my ($self) = @_;
1335		1557
1336	# save first because save cedes	1558	# save first because save cedes
1337	$self->save;	1559	$self->save;
		1560
		1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1562
1339	return if $self->players;	1563	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1565	return if $self->{deny_save};
1342		1566
…		…
1346		1570
1347	sub reset_at {	1571	sub reset_at {
1348	my ($self) = @_;	1572	my ($self) = @_;
1349		1573
1350	# TODO: safety, remove and allow resettable per-player maps	1574	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};	1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1352	return 1e99 if $self->{deny_reset};	1576	return 1e99 if $self->{deny_reset};
1353		1577
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1580
…		…
1361	my ($self) = @_;	1585	my ($self) = @_;
1362		1586
1363	$self->reset_at <= $cf::RUNTIME	1587	$self->reset_at <= $cf::RUNTIME
1364	}	1588	}
1365		1589
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1590	sub reset {
1388	my ($self) = @_;	1591	my ($self) = @_;
1389		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
1390	return if $self->players;	1595	return if $self->players;
1391	return if $self->{path}{user_rel};#d#	1596	return if $self->isa ("ext::map_per_player");#d#
1392		1597
1393	warn "resetting map ", $self->path;#d#	1598	warn "resetting map ", $self->path;#d#
1394		1599
		1600	$self->in_memory (cf::MAP_SWAPPED);
		1601
		1602	# need to save uniques path
		1603	unless ($self->{deny_save}) {
		1604	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1605
		1606	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1607	if $uniq;
		1608	}
		1609
1395	delete $cf::MAP{$self->path};	1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
1396		1613
1397	$_->clear_links_to ($self) for values %cf::MAP;	1614	$_->clear_links_to ($self) for values %cf::MAP;
1398		1615
1399	$self->unlink_save;	1616	$self->unlink_save;
1400	$self->destroy;	1617	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1620	my $nuke_counter = "aaaa";
1404		1621
1405	sub nuke {	1622	sub nuke {
1406	my ($self) = @_;	1623	my ($self) = @_;
1407		1624
		1625	delete $cf::MAP{$self->path};
		1626
		1627	$self->unlink_save;
		1628
		1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1631	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1632	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1634
		1635	$cf::MAP{$self->path} = $self;
		1636
1411	$self->reset; # polite request, might not happen	1637	$self->reset; # polite request, might not happen
1412	}	1638	}
1413		1639
1414	sub customise_for {	1640	=item cf::map::unique_maps
1415	my ($map, $ob) = @_;
1416		1641
1417	if ($map->per_player) {	1642	Returns an arrayref of paths of all shared maps that have
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1643	instantiated unique items. May block.
1419	}
1420		1644
1421	$map	1645	=cut
1422	}
1423		1646
1424	sub emergency_save {	1647	sub unique_maps() {
1425	my $freeze_guard = cf::freeze_mainloop;	1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
1426		1650
1427	warn "enter emergency map save\n";	1651	my @paths;
1428		1652
1429	cf::sync_job {	1653	for (@$files) {
1430	warn "begin emergency map save\n";	1654	utf8::decode $_;
1431	$_->save for values %cf::MAP;	1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
1432	};	1659	}
1433		1660
1434	warn "end emergency map save\n";	1661	\@paths
1435	}	1662	}
1436		1663
1437	package cf;	1664	package cf;
1438		1665
1439	=back	1666	=back
1440		1667
		1668	=head3 cf::object
		1669
		1670	=cut
		1671
		1672	package cf::object;
		1673
		1674	=over 4
		1675
		1676	=item $ob->inv_recursive
		1677
		1678	Returns the inventory of the object _and_ their inventories, recursively.
		1679
		1680	=cut
		1681
		1682	sub inv_recursive_;
		1683	sub inv_recursive_ {
		1684	map { $_, inv_recursive_ $_->inv } @_
		1685	}
		1686
		1687	sub inv_recursive {
		1688	inv_recursive_ inv $_[0]
		1689	}
		1690
		1691	package cf;
		1692
		1693	=back
1441		1694
1442	=head3 cf::object::player	1695	=head3 cf::object::player
1443		1696
1444	=over 4	1697	=over 4
1445		1698
…		…
1485		1738
1486	=item $player_object->enter_link	1739	=item $player_object->enter_link
1487		1740
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1741	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1742
1490	The player should be reaosnably safe there for short amounts of time. You	1743	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	1744	I<MUST> call C<leave_link> as soon as possible, though.
1492		1745
		1746	Will never block.
		1747
1493	=item $player_object->leave_link ($map, $x, $y)	1748	=item $player_object->leave_link ($map, $x, $y)
1494		1749
1495	Moves the player out of the specila link map onto the given map. If the	1750	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1751	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1752	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1753	fails, to the emergency map position.
1499		1754
1500	Might block.	1755	Might block.
1501		1756
1502	=cut	1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
1503		1768
1504	sub cf::object::player::enter_link {	1769	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1770	my ($self) = @_;
1506		1771
1507	$self->deactivate_recursive;	1772	$self->deactivate_recursive;
1508		1773
1509	return if $self->map == $LINK_MAP;	1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		1775
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1777	if $self->map;
1513		1778
1514	$self->enter_map ($LINK_MAP, 20, 20);	1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1780	}
1516		1781
1517	sub cf::object::player::leave_link {	1782	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1783	my ($self, $map, $x, $y) = @_;
1519		1784
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	1802	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	1803	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	1804	if $x <=0 && $y <= 0;
1540		1805
1541	$map->load;	1806	$map->load;
		1807	$map->load_diag;
1542		1808
		1809	return unless $self->contr->active;
1543	$self->activate_recursive;	1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1545	}	1814	}
1546		1815
1547	cf::player->attach (	1816	cf::player->attach (
1548	on_logout => sub {	1817	on_logout => sub {
…		…
1560		1829
1561	# try to abort aborted map switching on player login :)	1830	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes	1831	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {	1832	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;	1833	$pl->ob->enter_link;
1565	cf::async {	1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
1566	# we need this sleep as the login has a concurrent enter_exit running	1839	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn	1840	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;	1841	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;	1842	$pl->ob->leave_link;
1570	};	1843	})->prio (2);
1571	}	1844	}
1572	},	1845	},
1573	);	1846	);
1574		1847
1575	=item $player_object->goto_map ($path, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1576		1849
1577	=cut	1850	=cut
1578		1851
1579	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1581		1854
1582	$self->enter_link;	1855	$self->enter_link;
1583		1856
1584	(cf::async {	1857	(async {
1585	$path = new cf::path $path;	1858	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	1859	my $map = cf::map::find $path;
1588	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1589		1861	$map
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	1862	} or
1591	# if $map;
1592
1593	$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);
1594		1864
1595	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1596	})->prio (1);	1866	})->prio (1);
1597	}	1867	}
1598		1868
…		…
1602		1872
1603	sub parse_random_map_params {	1873	sub parse_random_map_params {
1604	my ($spec) = @_;	1874	my ($spec) = @_;
1605		1875
1606	my $rmp = { # defaults	1876	my $rmp = { # defaults
1607	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1609	};	1881	};
1610		1882
1611	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1613		1885
…		…
1617	$rmp	1889	$rmp
1618	}	1890	}
1619		1891
1620	sub prepare_random_map {	1892	sub prepare_random_map {
1621	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		1896
1623	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	1899	# that depends on the exit object
1626		1900
1627	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1628		1902
1629	if ($exit->map) {	1903	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1634	}	1908	}
1635		1909
1636	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1637		1911
1638	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1640		1915
1641	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) {
1642	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;
1643		1920
1644	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	1922	$exit->msg (undef);
1646	}	1923	}
1647	}	1924	}
…		…
1649	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1651		1928
1652	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1653		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
1654	$self->enter_link;	1940	$self->enter_link;
1655		1941
1656	(cf::async {	1942	(async {
1657	$self->deactivate_recursive; # just to be sure	1943	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	1944	unless (eval {
1659	prepare_random_map $exit	1945	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		1946
1665	1;	1947	1;
1666	}) {	1948	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "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. "
1669	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1671		1953
1672	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	1955	$self->leave_link;
1674	}	1956	}
…		…
1729	# get handled first	2011	# get handled first
1730	my $queue = delete $ns->{query_queue}	2012	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2013	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2014
1733	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2017
1735	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1736		2019
1737	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2021	if (@$queue) {
…		…
1742	}	2025	}
1743	}	2026	}
1744	},	2027	},
1745	);	2028	);
1746		2029
1747	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1748		2031
1749	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1750	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,
1751	or loss of connection).	2034	or loss of connection).
1752		2035
1753	=cut	2036	=cut
1754		2037
1755	sub cf::client::coro {	2038	sub cf::client::async {
1756	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1757		2040
1758	my $coro = &cf::async ($cb);	2041	my $coro = &Coro::async ($cb);
1759		2042
1760	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1762	});	2045	});
1763		2046
…		…
1899	The parameter C<$family> should best start with the name of the extension	2182	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2183	using it, it should be unique.
1901		2184
1902	=over 4	2185	=over 4
1903		2186
1904	=item $hashref = cf::db_get $family
1905
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
1911		2188
1912	Returns a single value from the database	2189	Returns a single value from the database.
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918		2190
1919	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
1920		2192
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931		2194
1932	=cut	2195	=cut
1933		2196
1934	our $DB;	2197	our $DB;
1935		2198
1936	{	2199	sub db_init {
		2200	unless ($DB) {
		2201	$DB = BDB::db_create $DB_ENV;
		2202
		2203	cf::sync_job {
		2204	eval {
		2205	$DB->set_flags (BDB::CHKSUM);
		2206
		2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2209	cf::cleanup "db_open(db): $!" if $!;
		2210	};
		2211	cf::cleanup "db_open(db): $@" if $@;
		2212	};
		2213
1937	my $path = cf::localdir . "/database.pst";	2214	my $path = cf::localdir . "/database.pst";
		2215	if (stat $path) {
		2216	cf::sync_job {
		2217	my $pst = Storable::retrieve $path;
1938		2218
1939	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
1940	$DB = stat $path ? Storable::retrieve $path : { };	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1941	}	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
		2222	BDB::db_env_txn_checkpoint $DB_ENV;
1942		2223
1943	my $pid;	2224	unlink $path;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}	2225	};
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});
1965
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {
1972	@_ >= 2
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976
1977	sub db_put($$;$) {
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2226	}
1991	);	2227	}
		2228	}
		2229
		2230	sub db_get($$) {
		2231	my $key = "$_[0]/$_[1]";
		2232
		2233	cf::sync_job {
		2234	BDB::db_get $DB, undef, $key, my $data;
		2235
		2236	$! ? ()
		2237	: Compress::LZF::sthaw $data
		2238	}
		2239	}
		2240
		2241	sub db_put($$$) {
		2242	BDB::dbreq_pri 4;
		2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1992	}	2244	}
1993		2245
1994	#############################################################################	2246	#############################################################################
1995	# the server's main()	2247	# the server's init and main functions
		2248
		2249	sub init_resources {
		2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2251	or die "unable to load regions file\n";#d#
		2252	}
1996		2253
1997	sub cfg_load {	2254	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1999	or return;	2256	or return;
2000		2257
2001	local $/;	2258	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
2003		2260
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
2006	if (exists $CFG{mlockall}) {	2266	if (exists $CFG{mlockall}) {
2007	eval {	2267	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2269	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2270	};
2011	warn $@ if $@;	2271	warn $@ if $@;
2012	}	2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
2013	}	2277	}
2014		2278
2015	sub main {	2279	sub main {
2016	# we must not ever block the main coroutine	2280	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2281	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2283	(async {
2020	Event::one_event;	2284	Event::one_event;
2021	})->();	2285	})->prio (Coro::PRIO_MAX);
2022	};	2286	};
2023		2287
2024	cfg_load;	2288	cfg_load;
2025	db_load;	2289	db_init;
2026	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
2027	Event::loop;	2293	Event::loop;
2028	}	2294	}
2029		2295
2030	#############################################################################	2296	#############################################################################
2031	# initialisation	2297	# initialisation and cleanup
		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338
		2339	warn "begin emergency database checkpoint\n";
		2340	BDB::db_env_txn_checkpoint $DB_ENV;
		2341	warn "end emergency database checkpoint\n";
		2342	};
		2343
		2344	warn "leave emergency perl save\n";
		2345	}
		2346
		2347	sub post_cleanup {
		2348	my ($make_core) = @_;
		2349
		2350	warn Carp::longmess "post_cleanup backtrace"
		2351	if $make_core;
		2352	}
2032		2353
2033	sub reload() {	2354	sub reload() {
2034	# can/must only be called in main	2355	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2356	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2357	warn "can only reload from main coroutine";
2037	return;	2358	return;
2038	}	2359	}
2039		2360
2040	warn "reloading...";	2361	warn "reloading...";
2041		2362
2042	my $guard = freeze_mainloop;	2363	warn "entering sync_job";
		2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
2044		2369
2045	eval {	2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
2046	# if anything goes wrong in here, we should simply crash as we already saved	2373	# if anything goes wrong in here, we should simply crash as we already saved
2047		2374
2048	# cancel all watchers	2375	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2376	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2377	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2378	}
2052		2379
		2380	warn "flushing outstanding aio requests";
		2381	for (;;) {
		2382	BDB::flush;
		2383	IO::AIO::flush;
		2384	Coro::cede;
		2385	last unless IO::AIO::nreqs || BDB::nreqs;
		2386	warn "iterate...";
		2387	}
		2388
2053	# cancel all extension coros	2389	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2390	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2391	%EXT_CORO = ();
2056		2392
2057	# unload all extensions	2393	warn "removing commands";
2058	for (@exts) {	2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2401	warn "... unloading $pkg";
2060	unload_extension $_;	2402
		2403	if (my $cb = $pkg->can ("unload")) {
		2404	eval {
		2405	$cb->($pkg);
		2406	1
		2407	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2408	}
2062		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
2063	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2417
2067	warn "removing <$k>";	2418	warn "... unloading $k";
2068	delete $INC{$k};	2419	delete $INC{$k};
2069		2420
2070	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
2072		2423
…		…
2075	}	2426	}
2076		2427
2077	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
2078	}	2429	}
2079		2430
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2434
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
2093		2437
2094	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2439	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
2097		2441
2098	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
2099	warn "reloading cf.pm";	2444	warn "reloading cf.pm";
2100	require cf;	2445	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2447
2103	# load config and database again	2448	warn "loading config and database again";
2104	cf::cfg_load;	2449	cf::cfg_load;
2105	cf::db_load;
2106		2450
2107	# load extensions
2108	warn "load extensions";	2451	warn "loading extensions";
2109	cf::load_extensions;	2452	cf::load_extensions;
2110		2453
2111	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
2112	warn "reattach";
2113	_global_reattach;	2455	_global_reattach;
2114	};	2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
2115		2458
2116	if ($@) {	2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
2117	warn $@;	2466	warn $@;
2118	warn "error while reloading, exiting.";	2467	warn "error while reloading, exiting.";
2119	exit 1;	2468	exit 1;
2120	}	2469	};
2121		2470
2122	warn "reloaded successfully";	2471	warn "reloaded";
2123	};	2472	};
2124		2473
2125	#############################################################################	2474	our $RELOAD_WATCHER; # used only during reload
2126
2127	unless ($LINK_MAP) {
2128	$LINK_MAP = cf::map::new;
2129
2130	$LINK_MAP->width (41);
2131	$LINK_MAP->height (41);
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,
2140	cb => sub {
2141	$_[0]->w->cancel;
2142
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});
2161
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}
2167
2168	register "<global>", __PACKAGE__;
2169		2475
2170	register_command "reload" => sub {	2476	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
2172		2478
2173	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");	2480	$who->message ("reloading server.");
		2481
		2482	# doing reload synchronously and two reloads happen back-to-back,
		2483	# coro crashes during coro_state_free->destroy here.
		2484
		2485	$RELOAD_WATCHER ||= Event->timer (
		2486	reentrant => 0,
		2487	after => 0,
		2488	data => WF_AUTOCANCEL,
		2489	cb => sub {
2175	reload;	2490	reload;
2176	$who->message ("end of reload.");	2491	undef $RELOAD_WATCHER;
		2492	},
		2493	);
2177	}	2494	}
2178	};	2495	};
2179		2496
2180	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
		2498
		2499	my $bug_warning = 0;
2181		2500
2182	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2502	reentrant => 0,
		2503	parked => 1,
2184	prio => 0,	2504	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2505	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2506	data => WF_AUTOCANCEL,
2187	cb => sub {	2507	cb => sub {
		2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
2188	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
2189	$RUNTIME += $TICK;	2517	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2518	$NEXT_TICK += $TICK;
		2519
		2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2521	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2522	Coro::async_pool {
		2523	write_runtime
		2524	or warn "ERROR: unable to write runtime file: $!";
		2525	};
		2526	}
		2527
		2528	$WAIT_FOR_TICK->broadcast;
		2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2530
		2531	# my $AFTER = Event::time;
		2532	# warn $AFTER - $NOW;#d#
2191		2533
2192	# if we are delayed by four ticks or more, skip them all	2534	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2194		2536
2195	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
2197	},	2539	},
2198	);	2540	);
2199		2541
		2542	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2543	BDB::max_poll_time $TICK * 0.1;
2201		2544	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2545	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2546	fd => BDB::poll_fileno,
2204	poll => 'r',	2547	poll => 'r',
2205	prio => 5,	2548	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	2549	data => WF_AUTOCANCEL,
2212	after => 0,	2550	cb => \&BDB::poll_cb,
2213	interval => 10,	2551	);
2214	cb => sub {	2552	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	2553
2216	write_runtime	2554	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	2555	my $status;
		2556	my $current = $Coro::current;
		2557	(
		2558	sub {
		2559	$status = $!;
		2560	$current->ready; undef $current;
		2561	},
		2562	sub {
		2563	Coro::schedule while defined $current;
		2564	$! = $status;
		2565	},
		2566	)
		2567	};
		2568
		2569	unless ($DB_ENV) {
		2570	$DB_ENV = BDB::db_env_create;
		2571
		2572	cf::sync_job {
		2573	eval {
		2574	BDB::db_env_open
		2575	$DB_ENV,
		2576	$BDB_ENV_DIR,
		2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2579	0666;
		2580
		2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2582
		2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2584	$DB_ENV->set_lk_detect;
		2585	};
		2586
		2587	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	2588	};
2219	},	2589	}
2220	);	2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
		2596	IO::AIO::max_poll_time $TICK * 0.1;
		2597	$AIO_POLL_WATCHER = Event->io (
		2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
		2601	poll => 'r',
		2602	prio => 6,
		2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
2221		2606
2222	END { cf::emergency_save }	2607	END { cf::emergency_save }
2223		2608
2224	1	2609	1
2225		2610

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