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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC

…		…
8	use Storable;	8	use Storable;
9	use Opcode;	9	use Opcode;
10	use Safe;	10	use Safe;
11	use Safe::Hole;	11	use Safe::Hole;
12		12
13	use Coro 3.3;	13	use Coro 3.5 ();
14	use Coro::Event;	14	use Coro::Event;
15	use Coro::Timer;	15	use Coro::Timer;
16	use Coro::Signal;	16	use Coro::Signal;
17	use Coro::Semaphore;	17	use Coro::Semaphore;
18	use Coro::AIO;	18	use Coro::AIO;
19		19
		20	use BDB ();
		21	use Data::Dumper;
20	use Digest::MD5;	22	use Digest::MD5;
21	use Fcntl;	23	use Fcntl;
22	use IO::AIO 2.31 ();	24	use IO::AIO 2.32 ();
23	use YAML::Syck ();	25	use YAML::Syck ();
24	use Time::HiRes;	26	use Time::HiRes;
		27	use Compress::LZF;
		28
		29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
25		30
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
27		34
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	36	$YAML::Syck::ImplicitUnicode = 1;
30		37
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		39
35	our %COMMAND = ();	40	our %COMMAND = ();
36	our %COMMAND_TIME = ();	41	our %COMMAND_TIME = ();
		42
		43	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	44	our %EXTCMD = ();
		45	our %EXT_CORO = (); # coroutines bound to extensions
		46	our %EXT_MAP = (); # pluggable maps
38		47
39	our @EVENT;	48	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	49	our $LIBDIR = datadir . "/ext";
41		50
42	our $TICK = MAX_TIME * 1e-6;	51	our $TICK = MAX_TIME * 1e-6;
43	our $TICK_WATCHER;	52	our $TICK_WATCHER;
		53	our $AIO_POLL_WATCHER;
		54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	55	our $NEXT_TICK;
45	our $NOW;	56	our $NOW;
		57	our $USE_FSYNC = 1; # use fsync to write maps - default off
		58
		59	our $BDB_POLL_WATCHER;
		60	our $DB_ENV;
46		61
47	our %CFG;	62	our %CFG;
48		63
49	our $UPTIME; $UPTIME ||= time;	64	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	65	our $RUNTIME;
51		66
		67	our %PLAYER; # all users
52	our %MAP; # all maps	68	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	69	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;
55	our $RANDOM_MAPS = cf::localdir . "/random";	70	our $RANDOM_MAPS = cf::localdir . "/random";
56	our %EXT_CORO;	71	our $BDB_ENV_DIR = cf::localdir . "/db";
		72
		73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		75
		76	# used to convert map paths into valid unix filenames by replacing / by ∕
		77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		78
58	binmode STDOUT;	79	binmode STDOUT;
59	binmode STDERR;	80	binmode STDERR;
60		81
61	# read virtual server time, if available	82	# read virtual server time, if available
…		…
68	mkdir cf::localdir;	89	mkdir cf::localdir;
69	mkdir cf::localdir . "/" . cf::playerdir;	90	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;	91	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;	92	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;	93	mkdir $RANDOM_MAPS;
		94	mkdir $BDB_ENV_DIR;
73		95
74	# a special map that is always available	96	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		97
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	98	sub cf::map::normalise;
78		99
79	#############################################################################	100	#############################################################################
80		101
81	=head2 GLOBAL VARIABLES	102	=head2 GLOBAL VARIABLES
82		103
…		…
106		127
107	=item %cf::CFG	128	=item %cf::CFG
108		129
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	130	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	131	from wherever your confdir points to.
		132
		133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		134
		135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		137	processing has been done. Call C<< ->wait >> on them to maximise the
		138	window of cpu time available, or simply to synchronise to the server tick.
111		139
112	=back	140	=back
113		141
114	=cut	142	=cut
115		143
…		…
119	utf8::encode $msg;	147	utf8::encode $msg;
120		148
121	$msg .= "\n"	149	$msg .= "\n"
122	unless $msg =~ /\n$/;	150	unless $msg =~ /\n$/;
123		151
124	LOG llevError, "cfperl: $msg";	152	LOG llevError, $msg;
125	};	153	};
126	}	154	}
127		155
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		175
148	$Event::DIED = sub {	176	$Event::DIED = sub {
149	warn "error in event callback: @_";	177	warn "error in event callback: @_";
150	};	178	};
151		179
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	180	=head2 UTILITY FUNCTIONS
157		181
158	=over 4	182	=over 4
159		183
		184	=item dumpval $ref
		185
160	=cut	186	=cut
		187
		188	sub dumpval {
		189	eval {
		190	local $SIG{__DIE__};
		191	my $d;
		192	if (1) {
		193	$d = new Data::Dumper([$_[0]], ["*var"]);
		194	$d->Terse(1);
		195	$d->Indent(2);
		196	$d->Quotekeys(0);
		197	$d->Useqq(1);
		198	#$d->Bless(...);
		199	$d->Seen($_[1]) if @_ > 1;
		200	$d = $d->Dump();
		201	}
		202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		203	$d
		204	} || "[unable to dump $_[0]: '$@']";
		205	}
161		206
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	207	use JSON::Syck (); # TODO# replace by JSON::PC once working
163		208
164	=item $ref = cf::from_json $json	209	=item $ref = cf::from_json $json
165		210
…		…
180		225
181	sub to_json($) {	226	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]	228	JSON::Syck::Dump $_[0]
184	}	229	}
		230
		231	=item cf::lock_wait $string
		232
		233	Wait until the given lock is available. See cf::lock_acquire.
		234
		235	=item my $lock = cf::lock_acquire $string
		236
		237	Wait until the given lock is available and then acquires it and returns
		238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		239	for example when the coroutine gets canceled), the lock is automatically
		240	returned.
		241
		242	Lock names should begin with a unique identifier (for example, cf::map::find
		243	uses map_find and cf::map::load uses map_load).
		244
		245	=cut
		246
		247	our %LOCK;
		248
		249	sub lock_wait($) {
		250	my ($key) = @_;
		251
		252	# wait for lock, if any
		253	while ($LOCK{$key}) {
		254	push @{ $LOCK{$key} }, $Coro::current;
		255	Coro::schedule;
		256	}
		257	}
		258
		259	sub lock_acquire($) {
		260	my ($key) = @_;
		261
		262	# wait, to be sure we are not locked
		263	lock_wait $key;
		264
		265	$LOCK{$key} = [];
		266
		267	Coro::guard {
		268	# wake up all waiters, to be on the safe side
		269	$_->ready for @{ delete $LOCK{$key} };
		270	}
		271	}
		272
		273	sub freeze_mainloop {
		274	return unless $TICK_WATCHER->is_active;
		275
		276	my $guard = Coro::guard {
		277	$TICK_WATCHER->start;
		278	};
		279	$TICK_WATCHER->stop;
		280	$guard
		281	}
		282
		283	=item cf::async { BLOCK }
		284
		285	Currently the same as Coro::async_pool, meaning you cannot use
		286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		287	thing you are allowed to do is call C<prio> on it.
		288
		289	=cut
		290
		291	BEGIN { *async = \&Coro::async_pool }
185		292
186	=item cf::sync_job { BLOCK }	293	=item cf::sync_job { BLOCK }
187		294
188	The design of crossfire+ requires that the main coro ($Coro::main) is	295	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	296	always able to handle events or runnable, as crossfire+ is only partly
…		…
197	=cut	304	=cut
198		305
199	sub sync_job(&) {	306	sub sync_job(&) {
200	my ($job) = @_;	307	my ($job) = @_;
201		308
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	309	if ($Coro::current == $Coro::main) {
		310	# this is the main coro, too bad, we have to block
		311	# till the operation succeeds, freezing the server :/
		312
212	# TODO: use suspend/resume instead	313	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	314	# (but this is cancel-safe)
		315	my $freeze_guard = freeze_mainloop;
		316
		317	my $busy = 1;
		318	my @res;
		319
		320	(async {
		321	@res = eval { $job->() };
		322	warn $@ if $@;
		323	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	324	})->prio (Coro::PRIO_MAX);
		325
215	while ($busy) {	326	while ($busy) {
216	Coro::cede_notself;	327	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	328	}
		329
		330	wantarray ? @res : $res[0]
219	} else {	331	} else {
220	$coro->join;	332	# we are in another coroutine, how wonderful, everything just works
		333
		334	$job->()
221	}	335	}
222
223	wantarray ? @res : $res[0]
224	}	336	}
225		337
226	=item $coro = cf::coro { BLOCK }	338	=item $coro = cf::async_ext { BLOCK }
227		339
228	Creates and returns a new coro. This coro is automcatially being canceled	340	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	341	extension calling this is being unloaded.
230		342
231	=cut	343	=cut
232		344
233	sub coro(&) {	345	sub async_ext(&) {
234	my $cb = shift;	346	my $cb = shift;
235		347
236	my $coro; $coro = async {	348	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		349
243	$coro->on_destroy (sub {	350	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	351	delete $EXT_CORO{$coro+0};
245	});	352	});
246	$EXT_CORO{$coro+0} = $coro;	353	$EXT_CORO{$coro+0} = $coro;
247		354
248	$coro	355	$coro
249	}	356	}
250		357
251	sub write_runtime {	358	sub write_runtime {
		359	my $guard = cf::lock_acquire "write_runtime";
		360
252	my $runtime = cf::localdir . "/runtime";	361	my $runtime = cf::localdir . "/runtime";
253		362
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	364	or return;
256		365
257	my $value = $cf::RUNTIME;	366	my $value = $cf::RUNTIME + 90 + 10;
		367	# 10 is the runtime save interval, for a monotonic clock
		368	# 60 allows for the watchdog to kill the server.
		369
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	370	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	371	and return;
260		372
		373	# always fsync - this file is important
261	aio_fsync $fh	374	aio_fsync $fh
262	and return;	375	and return;
263		376
264	close $fh	377	close $fh
265	or return;	378	or return;
…		…
271	}	384	}
272		385
273	=back	386	=back
274		387
275	=cut	388	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		389
387	#############################################################################	390	#############################################################################
388		391
389	=head2 ATTACHABLE OBJECTS	392	=head2 ATTACHABLE OBJECTS
390		393
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	519	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	520	our @CB_MAP = ();
518		521
519	my %attachment;	522	my %attachment;
520		523
		524	sub cf::attachable::thawer_merge {
		525	# simply override everything except _meta
		526	local $_[0]{_meta};
		527	%{$_[0]} = %{$_[1]};
		528	}
		529
521	sub _attach_cb($$$$) {	530	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	531	my ($registry, $event, $prio, $cb) = @_;
523		532
524	use sort 'stable';	533	use sort 'stable';
525		534
…		…
696	# object support	705	# object support
697		706
698	sub reattach {	707	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	708	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	709	my ($obj) = @_;
		710
		711	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		712
702	my $registry = $obj->registry;	713	my $registry = $obj->registry;
703		714
704	@$registry = ();	715	@$registry = ();
705		716
…		…
752	$filename, length $$rdata, scalar @$objs;	763	$filename, length $$rdata, scalar @$objs;
753		764
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	766	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	768	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	769	close $fh;
759		770
760	if (@$objs) {	771	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	773	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	774	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	775	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	776	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	777	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	778	aio_rename "$filename.pst~", "$filename.pst";
768	}	779	}
769	} else {	780	} else {
770	aio_unlink "$filename.pst";	781	aio_unlink "$filename.pst";
…		…
798	or return;	809	or return;
799		810
800	unless (aio_stat "$filename.pst") {	811	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	812	(aio_load "$filename.pst", $av) >= 0
802	or return;	813	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	814	$av = eval { (Storable::thaw $av)->{objs} };
804	}	815	}
805		816
		817	warn sprintf "loading %s (%d)\n",
		818	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	819	return ($data, $av);
807	}	820	}
808		821
809	#############################################################################	822	#############################################################################
810	# command handling &c	823	# command handling &c
…		…
835	=cut	848	=cut
836		849
837	sub register_extcmd {	850	sub register_extcmd {
838	my ($name, $cb) = @_;	851	my ($name, $cb) = @_;
839		852
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	853	$EXTCMD{$name} = $cb;
844	}	854	}
845		855
846	cf::player->attach (	856	cf::player->attach (
847	on_command => sub {	857	on_command => sub {
848	my ($pl, $name, $params) = @_;	858	my ($pl, $name, $params) = @_;
…		…
861		871
862	my $msg = eval { from_json $buf };	872	my $msg = eval { from_json $buf };
863		873
864	if (ref $msg) {	874	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	876	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	877	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	878	}
869	}	879	}
870	} else {	880	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		883
874	cf::override;	884	cf::override;
875	},	885	},
876	);	886	);
877		887
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	888	sub load_extension {
885	my ($path) = @_;	889	my ($path) = @_;
886		890
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	892	my $base = $1;
889	my $pkg = $1;	893	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	894	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	895	$pkg = "ext::$pkg";
892		896
893	warn "loading '$path' into '$pkg'\n";	897	warn "... loading '$path' into '$pkg'\n";
894		898
895	open my $fh, "<:utf8", $path	899	open my $fh, "<:utf8", $path
896	or die "$path: $!";	900	or die "$path: $!";
897		901
898	my $source =	902	my $source =
899	"package $pkg; use strict; use utf8;\n"	903	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	904	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	905	. (do { local $/; <$fh> })
902	. "\n};\n1";	906	. "\n};\n1";
903		907
904	eval $source	908	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	909	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	910	: "extension disabled.\n";
907		911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	912	warn $@;
909	$ext_pkg{$base} = $pkg;	913	warn "mandatory extension failed to load, exiting.\n";
910		914	exit 1;
911	# no strict 'refs';	915	}
912	# @{"$pkg\::ISA"} = ext::;	916	die $@;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	917	}
927		918
928	# remove commands	919	push @EXTS, $pkg;
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	920	}
953		921
954	sub load_extensions {	922	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	923	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	924	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	928	} or warn "$ext not loaded: $@";
961	}	929	}
962	}	930	}
963		931
964	#############################################################################	932	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001		933
1002	=head2 CORE EXTENSIONS	934	=head2 CORE EXTENSIONS
1003		935
1004	Functions and methods that extend core crossfire objects.	936	Functions and methods that extend core crossfire objects.
1005		937
		938	=cut
		939
		940	package cf::player;
		941
		942	use Coro::AIO;
		943
1006	=head3 cf::player	944	=head3 cf::player
1007		945
1008	=over 4	946	=over 4
1009		947
1010	=item cf::player::exists $login	948	=item cf::player::find $login
1011		949
1012	Returns true when the given account exists.	950	Returns the given player object, loading it if necessary (might block).
1013		951
1014	=cut	952	=cut
1015		953
1016	sub cf::player::exists($) {	954	sub playerdir($) {
1017	cf::player::find $_[0]	955	cf::localdir
1018	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
1019	}	1102	}
1020		1103
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1104	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1105
1023	Sends an ext reply to the player.	1106	Sends an ext reply to the player.
1024		1107
1025	=cut	1108	=cut
1026		1109
1027	sub cf::player::ext_reply($$$%) {	1110	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1111	my ($self, $id, %msg) = @_;
1029		1112
1030	$msg{msgid} = $id;	1113	$msg{msgid} = $id;
1031		1114
1032	$self->send ("ext " . to_json \%msg);	1115	$self->send ("ext " . cf::to_json \%msg);
1033	}	1116	}
		1117
		1118	package cf;
1034		1119
1035	=back	1120	=back
1036		1121
1037		1122
1038	=head3 cf::map	1123	=head3 cf::map
…		…
1044	package cf::map;	1129	package cf::map;
1045		1130
1046	use Fcntl;	1131	use Fcntl;
1047	use Coro::AIO;	1132	use Coro::AIO;
1048		1133
		1134	use overload
		1135	'""' => \&as_string,
		1136	fallback => 1;
		1137
1049	our $MAX_RESET = 7200;	1138	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1139	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1140
1054	sub generate_random_map {	1141	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1142	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1143	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1144	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1145	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1146	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1147	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1148	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1149	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1150	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1151	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1152	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1154	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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
1071	}	1286	}
1072		1287
1073	# and all this just because we cannot iterate over	1288	# and all this just because we cannot iterate over
1074	# all maps in C++...	1289	# all maps in C++...
1075	sub change_all_map_light {	1290	sub change_all_map_light {
1076	my ($change) = @_;	1291	my ($change) = @_;
1077		1292
1078	$_->change_map_light ($change) for values %cf::MAP;	1293	$_->change_map_light ($change)
		1294	for grep $_->outdoor, values %cf::MAP;
1079	}	1295	}
1080		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
1081	sub try_load_header($) {	1305	sub load_header_from($) {
1082	my ($path) = @_;	1306	my ($self, $path) = @_;
1083		1307
1084	utf8::encode $path;	1308	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1309	#aio_open $path, O_RDONLY, 0
		1310	# or return;
		1311
		1312	$self->_load_header ($path)
1086	or return;	1313	or return;
1087		1314
1088	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
1089	or return;	1358	or return;
		1359	$self->prepare_orig;
		1360	}
1090		1361
1091	$map->load_header ($path)	1362	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1363	}
1099		1364
		1365	sub find;
1100	sub find_map {	1366	sub find {
1101	my ($path, $origin) = @_;	1367	my ($path, $origin) = @_;
1102		1368
1103	#warn "find_map<$path,$origin>\n";#d#	1369	$path = normalise $path, $origin && $origin->path;
1104		1370
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1371	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1372
1108	$cf::MAP{$key} || do {	1373	$cf::MAP{$path} || do {
1109	# do it the slow way	1374	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1375	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1376	or return;
1124		1377
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1378	$map->{last_save} = $cf::RUNTIME;
1136		1379
1137	$map->reset if $map->should_reset;	1380	$map->load_header
		1381	or return;
1138		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;
		1386	$map->reset;
		1387	undef $guard;
		1388	return find $path;
		1389	}
		1390
1139	$cf::MAP{$key} = $map	1391	$cf::MAP{$path} = $map
1140	}	1392	}
1141	}	1393	}
		1394
		1395	sub pre_load { }
		1396	sub post_load { }
1142		1397
1143	sub load {	1398	sub load {
1144	my ($self) = @_;	1399	my ($self) = @_;
1145		1400
		1401	local $self->{deny_reset} = 1; # loading can take a long time
		1402
		1403	my $path = $self->{path};
		1404	my $guard = cf::lock_acquire "map_load:$path";
		1405
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1406	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1407
1148	$self->in_memory (cf::MAP_LOADING);	1408	$self->in_memory (cf::MAP_LOADING);
1149		1409
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1410	$self->alloc;
		1411
		1412	$self->pre_load;
		1413
1153	$self->load_objects ($self->{load_path}, 1)	1414	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1415	or return;
1155		1416
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1418	if delete $self->{load_original};
1157		1419
1158	if (my $uniq = $path->uniq_path) {	1420	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1421	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1422	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1423	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1424	$self->_load_objects ($uniq, 0);
1163	}	1425	}
1164	}	1426	}
		1427
		1428	Coro::cede;
1165		1429
1166	# now do the right thing for maps	1430	# now do the right thing for maps
1167	$self->link_multipart_objects;	1431	$self->link_multipart_objects;
1168		1432
1169	if ($self->{path}->is_style_map) {	1433	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1434	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1435	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1436	$self->update_buttons;
		1437	Coro::cede;
1176	$self->set_darkness_map;	1438	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1439	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1440	unless $self->difficulty;
		1441	Coro::cede;
1179	$self->activate;	1442	$self->activate;
1180	}	1443	}
1181		1444
		1445	$self->post_load;
		1446
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1447	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1448	}
1184		1449
1185	sub load_map_sync {	1450	sub customise_for {
		1451	my ($self, $ob) = @_;
		1452
		1453	return find "~" . $ob->name . "/" . $self->{path}
		1454	if $self->per_player;
		1455
		1456	$self
		1457	}
		1458
		1459	# find and load all maps in the 3x3 area around a map
		1460	sub load_diag {
		1461	my ($map) = @_;
		1462
		1463	my @diag; # diagonal neighbours
		1464
		1465	for (0 .. 3) {
		1466	my $neigh = $map->tile_path ($_)
		1467	or next;
		1468	$neigh = find $neigh, $map
		1469	or next;
		1470	$neigh->load;
		1471
		1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1474	}
		1475
		1476	for (@diag) {
		1477	my $neigh = find @$_
		1478	or next;
		1479	$neigh->load;
		1480	}
		1481	}
		1482
		1483	sub find_sync {
1186	my ($path, $origin) = @_;	1484	my ($path, $origin) = @_;
1187		1485
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1486	cf::sync_job { find $path, $origin }
		1487	}
1189		1488
1190	cf::sync_job {	1489	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1490	my ($map) = @_;
1192	or return;	1491
		1492	cf::sync_job { $map->load };
		1493	}
		1494
		1495	our %MAP_PREFETCH;
		1496	our $MAP_PREFETCHER = undef;
		1497
		1498	sub find_async {
		1499	my ($path, $origin) = @_;
		1500
		1501	$path = normalise $path, $origin && $origin->{path};
		1502
		1503	if (my $map = $cf::MAP{$path}) {
		1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1505	}
		1506
		1507	undef $MAP_PREFETCH{$path};
		1508	$MAP_PREFETCHER ||= cf::async {
		1509	while (%MAP_PREFETCH) {
		1510	for my $path (keys %MAP_PREFETCH) {
		1511	my $map = find $path
		1512	or next;
1193	$map->load;	1513	$map->load;
1194	$map	1514
		1515	delete $MAP_PREFETCH{$path};
		1516	}
		1517	}
		1518	undef $MAP_PREFETCHER;
1195	}	1519	};
		1520	$MAP_PREFETCHER->prio (6);
		1521
		1522	()
1196	}	1523	}
1197		1524
1198	sub save {	1525	sub save {
1199	my ($self) = @_;	1526	my ($self) = @_;
1200		1527
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1528	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1529
1204	$self->{last_save} = $cf::RUNTIME;	1530	$self->{last_save} = $cf::RUNTIME;
1205		1531
1206	return unless $self->dirty;	1532	return unless $self->dirty;
1207		1533
		1534	my $save = $self->save_path; utf8::encode $save;
		1535	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1536
1208	$self->{load_path} = $save;	1537	$self->{load_path} = $save;
1209		1538
1210	return if $self->{deny_save};	1539	return if $self->{deny_save};
1211		1540
1212	warn "saving map ", $self->path;	1541	local $self->{last_access} = $self->last_access;#d#
		1542
		1543	cf::async {
		1544	$_->contr->save for $self->players;
		1545	};
1213		1546
1214	if ($uniq) {	1547	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1549	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1550	} else {
1218	$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);
1219	}	1552	}
1220	}	1553	}
1221		1554
1222	sub swap_out {	1555	sub swap_out {
1223	my ($self) = @_;	1556	my ($self) = @_;
		1557
		1558	# save first because save cedes
		1559	$self->save;
		1560
		1561	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1562
1225	return if $self->players;	1563	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1564	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1565	return if $self->{deny_save};
1228		1566
1229	$self->save;
1230	$self->clear;	1567	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1568	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1569	}
1233		1570
		1571	sub reset_at {
		1572	my ($self) = @_;
		1573
		1574	# TODO: safety, remove and allow resettable per-player maps
		1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1576	return 1e99 if $self->{deny_reset};
		1577
		1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1580
		1581	$time + $to
		1582	}
		1583
1234	sub should_reset {	1584	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1585	my ($self) = @_;
1251		1586
1252	utf8::encode (my $save = $self->{path}->save_path);	1587	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1588	}
1256		1589
1257	sub reset {	1590	sub reset {
1258	my ($self) = @_;	1591	my ($self) = @_;
1259		1592
		1593	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1594
1260	return if $self->players;	1595	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1596	return if $self->isa ("ext::map_per_player");#d#
1262		1597
1263	warn "resetting map ", $self->path;#d#	1598	warn "resetting map ", $self->path;#d#
1264		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
1265	delete $cf::MAP{$self->path};	1610	delete $cf::MAP{$self->path};
		1611
		1612	$self->clear;
1266		1613
1267	$_->clear_links_to ($self) for values %cf::MAP;	1614	$_->clear_links_to ($self) for values %cf::MAP;
1268		1615
1269	$self->unlink_save;	1616	$self->unlink_save;
1270	$self->destroy;	1617	$self->destroy;
1271	}	1618	}
1272		1619
1273	sub customise_for {	1620	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1621
1276	if ($map->per_player) {	1622	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1623	my ($self) = @_;
1278	}
1279		1624
1280	$map	1625	delete $cf::MAP{$self->path};
1281	}
1282		1626
1283	sub emergency_save {	1627	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1628
1286	warn "enter emergency map save\n";	1629	bless $self, "cf::map";
		1630	delete $self->{deny_reset};
		1631	$self->{deny_save} = 1;
		1632	$self->reset_timeout (1);
		1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1634
1288	cf::sync_job {	1635	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1636
1290	$_->save for values %cf::MAP;	1637	$self->reset; # polite request, might not happen
		1638	}
		1639
		1640	=item cf::map::unique_maps
		1641
		1642	Returns an arrayref of paths of all shared maps that have
		1643	instantiated unique items. May block.
		1644
		1645	=cut
		1646
		1647	sub unique_maps() {
		1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1649	or return;
		1650
		1651	my @paths;
		1652
		1653	for (@$files) {
		1654	utf8::decode $_;
		1655	next if /\.pst$/;
		1656	next unless /^$PATH_SEP/o;
		1657
		1658	push @paths, cf::map::normalise $_;
1291	};	1659	}
1292		1660
1293	warn "end emergency map save\n";	1661	\@paths
1294	}	1662	}
1295		1663
1296	package cf;	1664	package cf;
1297		1665
1298	=back	1666	=back
1299		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
1300		1694
1301	=head3 cf::object::player	1695	=head3 cf::object::player
1302		1696
1303	=over 4	1697	=over 4
1304		1698
…		…
1340	(ref $cf::CFG{"may_$access"}	1734	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1735	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1736	: $cf::CFG{"may_$access"})
1343	}	1737	}
1344		1738
		1739	=item $player_object->enter_link
		1740
		1741	Freezes the player and moves him/her to a special map (C<{link}>).
		1742
		1743	The player should be reasonably safe there for short amounts of time. You
		1744	I<MUST> call C<leave_link> as soon as possible, though.
		1745
		1746	Will never block.
		1747
		1748	=item $player_object->leave_link ($map, $x, $y)
		1749
		1750	Moves the player out of the special C<{link}> map onto the specified
		1751	map. If the map is not valid (or omitted), the player will be moved back
		1752	to the location he/she was before the call to C<enter_link>, or, if that
		1753	fails, to the emergency map position.
		1754
		1755	Might block.
		1756
		1757	=cut
		1758
		1759	sub link_map {
		1760	unless ($LINK_MAP) {
		1761	$LINK_MAP = cf::map::find "{link}"
		1762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1763	$LINK_MAP->load;
		1764	}
		1765
		1766	$LINK_MAP
		1767	}
		1768
1345	sub cf::object::player::enter_link {	1769	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1770	my ($self) = @_;
1347		1771
1348	return if $self->map == $LINK_MAP;	1772	$self->deactivate_recursive;
1349		1773
		1774	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1775
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1777	if $self->map;
1352		1778
1353	$self->enter_map ($LINK_MAP, 20, 20);	1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1780	}
1356		1781
1357	sub cf::object::player::leave_link {	1782	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1783	my ($self, $map, $x, $y) = @_;
1359		1784
1360	my $link_pos = delete $self->{_link_pos};	1785	my $link_pos = delete $self->{_link_pos};
1361		1786
1362	unless ($map) {	1787	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1788	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1789	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1790	$map = cf::map::find $map;
1368		1791
1369	unless ($map) {	1792	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1793	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1794	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1795	or die "FATAL: cannot load emergency map\n";
1373	}	1796	}
1374	}	1797	}
1375		1798
1376	($x, $y) = (-1, -1)	1799	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1802	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1803	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1804	if $x <=0 && $y <= 0;
1382		1805
1383	$map->load;	1806	$map->load;
		1807	$map->load_diag;
1384		1808
		1809	return unless $self->contr->active;
1385	$self->activate_recursive;	1810	$self->activate_recursive;
		1811
		1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	1813	$self->enter_map ($map, $x, $y);
1387	}	1814	}
1388		1815
		1816	cf::player->attach (
		1817	on_logout => sub {
		1818	my ($pl) = @_;
		1819
		1820	# abort map switching before logout
		1821	if ($pl->ob->{_link_pos}) {
		1822	cf::sync_job {
		1823	$pl->ob->leave_link
		1824	};
		1825	}
		1826	},
		1827	on_login => sub {
		1828	my ($pl) = @_;
		1829
		1830	# try to abort aborted map switching on player login :)
		1831	# should happen only on crashes
		1832	if ($pl->ob->{_link_pos}) {
		1833	$pl->ob->enter_link;
		1834	(async {
		1835	$pl->ob->reply (undef,
		1836	"There was an internal problem at your last logout, "
		1837	. "the server will try to bring you to your intended destination in a second.",
		1838	cf::NDI_RED);
		1839	# we need this sleep as the login has a concurrent enter_exit running
		1840	# and this sleep increases chances of the player not ending up in scorn
		1841	Coro::Timer::sleep 1;
		1842	$pl->ob->leave_link;
		1843	})->prio (2);
		1844	}
		1845	},
		1846	);
		1847
1389	=item $player_object->goto_map ($map, $x, $y)	1848	=item $player_object->goto ($path, $x, $y)
1390		1849
1391	=cut	1850	=cut
1392		1851
1393	sub cf::object::player::goto_map {	1852	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1853	my ($self, $path, $x, $y) = @_;
1395		1854
1396	$self->enter_link;	1855	$self->enter_link;
1397		1856
1398	(Coro::async {	1857	(async {
1399	$path = new cf::path $path;	1858	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1859	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1860	$map = $map->customise_for ($self) if $map;
1403
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1861	$map
		1862	} or
		1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1864
1407	$self->leave_link ($map, $x, $y);	1865	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1866	})->prio (1);
1409	}	1867	}
1410		1868
…		…
1414		1872
1415	sub parse_random_map_params {	1873	sub parse_random_map_params {
1416	my ($spec) = @_;	1874	my ($spec) = @_;
1417		1875
1418	my $rmp = { # defaults	1876	my $rmp = { # defaults
1419	xsize => 10,	1877	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1878	ysize => (cf::rndm 15, 40),
		1879	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1880	#layout => string,
1421	};	1881	};
1422		1882
1423	for (split /\n/, $spec) {	1883	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1884	my ($k, $v) = split /\s+/, $_, 2;
1425		1885
…		…
1429	$rmp	1889	$rmp
1430	}	1890	}
1431		1891
1432	sub prepare_random_map {	1892	sub prepare_random_map {
1433	my ($exit) = @_;	1893	my ($exit) = @_;
		1894
		1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1896
1435	# all this does is basically replace the /! path by	1897	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1898	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1899	# that depends on the exit object
1438		1900
1439	my $rmp = parse_random_map_params $exit->msg;	1901	my $rmp = parse_random_map_params $exit->msg;
1440		1902
1441	if ($exit->map) {	1903	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	1904	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	1905	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	1906	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	1907	$rmp->{origin_y} = $exit->y;
1446	}	1908	}
1447		1909
1448	$rmp->{random_seed} ||= $exit->random_seed;	1910	$rmp->{random_seed} ||= $exit->random_seed;
1449		1911
1450	my $data = cf::to_json $rmp;	1912	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1913	my $md5 = Digest::MD5::md5_hex $data;
		1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1915
1453	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) {
1454	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;
1455		1920
1456	$exit->slaying ("?random/$md5");	1921	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1922	$exit->msg (undef);
1458	}	1923	}
1459	}	1924	}
…		…
1461	sub cf::object::player::enter_exit {	1926	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1927	my ($self, $exit) = @_;
1463		1928
1464	return unless $self->type == cf::PLAYER;	1929	return unless $self->type == cf::PLAYER;
1465		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
1466	$self->enter_link;	1940	$self->enter_link;
1467		1941
1468	(Coro::async {	1942	(async {
		1943	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1944	unless (eval {
1470		1945	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		1946
1477	1;	1947	1;
1478	}) {	1948	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1949	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "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. "
1481	. "Please report this to the dungeon master",	1951	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1952	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1953
1484	warn "ERROR in enter_exit: $@";	1954	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1955	$self->leave_link;
1486	}	1956	}
…		…
1537	on_reply => sub {	2007	on_reply => sub {
1538	my ($ns, $msg) = @_;	2008	my ($ns, $msg) = @_;
1539		2009
1540	# this weird shuffling is so that direct followup queries	2010	# this weird shuffling is so that direct followup queries
1541	# get handled first	2011	# get handled first
1542	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
1543		2014
1544	(shift @$queue)->[1]->($msg);	2015	(shift @$queue)->[1]->($msg);
		2016	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2017
1546	push @{ $ns->{query_queue} }, @$queue;	2018	push @{ $ns->{query_queue} }, @$queue;
1547		2019
1548	if (@{ $ns->{query_queue} } == @$queue) {	2020	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2021	if (@$queue) {
…		…
1553	}	2025	}
1554	}	2026	}
1555	},	2027	},
1556	);	2028	);
1557		2029
1558	=item $client->coro (\&cb)	2030	=item $client->async (\&cb)
1559		2031
1560	Create a new coroutine, running the specified callback. The coroutine will	2032	Create a new coroutine, running the specified callback. The coroutine will
1561	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,
1562	or loss of connection).	2034	or loss of connection).
1563		2035
1564	=cut	2036	=cut
1565		2037
1566	sub cf::client::coro {	2038	sub cf::client::async {
1567	my ($self, $cb) = @_;	2039	my ($self, $cb) = @_;
1568		2040
1569	my $coro; $coro = async {	2041	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2042
1576	$coro->on_destroy (sub {	2043	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2044	delete $self->{_coro}{$coro+0};
1578	});	2045	});
1579		2046
…		…
1715	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
1716	using it, it should be unique.	2183	using it, it should be unique.
1717		2184
1718	=over 4	2185	=over 4
1719		2186
1720	=item $hashref = cf::db_get $family
1721
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key	2187	=item $value = cf::db_get $family => $key
1727		2188
1728	Returns a single value from the database	2189	Returns a single value from the database.
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734		2190
1735	=item cf::db_put $family => $key => $value	2191	=item cf::db_put $family => $key => $value
1736		2192
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2193	Stores the given C<$value> in the family.
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747		2194
1748	=cut	2195	=cut
1749		2196
1750	our $DB;	2197	our $DB;
1751		2198
1752	{	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
1753	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;
1754		2218
1755	sub db_load() {	2219	cf::db_put (board => data => $pst->{board});
1756	warn "loading database $path\n";#d# remove later	2220	cf::db_put (guildrules => data => $pst->{guildrules});
1757	$DB = stat $path ? Storable::retrieve $path : { };	2221	cf::db_put (rent => balance => $pst->{rent}{balance});
1758	}	2222	BDB::db_env_txn_checkpoint $DB_ENV;
1759		2223
1760	my $pid;	2224	unlink $path;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}	2225	};
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2226	}
1809	);	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 { };
1810	}	2244	}
1811		2245
1812	#############################################################################	2246	#############################################################################
1813	# 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	}
1814		2253
1815	sub cfg_load {	2254	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2255	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2256	or return;
1818		2257
1819	local $/;	2258	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2259	*CFG = YAML::Syck::Load <$fh>;
		2260
		2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2262
		2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2265
		2266	if (exists $CFG{mlockall}) {
		2267	eval {
		2268	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2269	and die "WARNING: m(un)lockall failed: $!\n";
		2270	};
		2271	warn $@ if $@;
		2272	}
		2273	}
		2274
		2275	sub init {
		2276	init_resources;
1821	}	2277	}
1822		2278
1823	sub main {	2279	sub main {
1824	# we must not ever block the main coroutine	2280	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2281	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2283	(async {
1828	Event::one_event;	2284	Event::one_event;
1829	})->();	2285	})->prio (Coro::PRIO_MAX);
1830	};	2286	};
1831		2287
1832	cfg_load;	2288	cfg_load;
1833	db_load;	2289	db_init;
1834	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1835	Event::loop;	2293	Event::loop;
1836	}	2294	}
1837		2295
1838	#############################################################################	2296	#############################################################################
1839	# 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 $make_core;
		2352	}
1840		2353
1841	sub reload() {	2354	sub reload() {
1842	# can/must only be called in main	2355	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2356	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2357	warn "can only reload from main coroutine";
1845	return;	2358	return;
1846	}	2359	}
1847		2360
1848	warn "reloading...";	2361	warn "reloading...";
1849		2362
1850	local $FREEZE = 1;	2363	warn "entering sync_job";
		2364
		2365	cf::sync_job {
		2366	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2367	cf::emergency_save;
		2368	cf::write_runtime; # external watchdog should not bark
1852		2369
1853	eval {	2370	warn "syncing database to disk";
		2371	BDB::db_env_txn_checkpoint $DB_ENV;
		2372
1854	# 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
1855		2374
1856	# cancel all watchers	2375	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2376	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2377	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2378	}
1860		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
1861	# cancel all extension coros	2389	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2390	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2391	%EXT_CORO = ();
1864		2392
1865	# unload all extensions	2393	warn "removing commands";
1866	for (@exts) {	2394	%COMMAND = ();
		2395
		2396	warn "removing ext commands";
		2397	%EXTCMD = ();
		2398
		2399	warn "unloading/nuking all extensions";
		2400	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2401	warn "... unloading $pkg";
1868	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: $@";
1869	}	2408	}
1870		2409
		2410	warn "... nuking $pkg";
		2411	Symbol::delete_package $pkg;
		2412	}
		2413
1871	# unload all modules loaded from $LIBDIR	2414	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2415	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2416	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2417
1875	warn "removing <$k>";	2418	warn "... unloading $k";
1876	delete $INC{$k};	2419	delete $INC{$k};
1877		2420
1878	$k =~ s/\.pm$//;	2421	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2422	$k =~ s/\//::/g;
1880		2423
…		…
1883	}	2426	}
1884		2427
1885	Symbol::delete_package $k;	2428	Symbol::delete_package $k;
1886	}	2429	}
1887		2430
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2431	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2432	Symbol::delete_package "safe::$_"
1894	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);
1895		2434
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2435	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2436	delete $INC{"cf.pm"};
1901		2437
1902	# don't, removes xs symbols, too,	2438	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2439	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2440	#Symbol::delete_package __PACKAGE__;
1905		2441
1906	# reload cf.pm	2442	warn "unload completed, starting to reload now";
		2443
1907	warn "reloading cf.pm";	2444	warn "reloading cf.pm";
1908	require cf;	2445	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2447
1911	# load config and database again	2448	warn "loading config and database again";
1912	cf::cfg_load;	2449	cf::cfg_load;
1913	cf::db_load;
1914		2450
1915	# load extensions
1916	warn "load extensions";	2451	warn "loading extensions";
1917	cf::load_extensions;	2452	cf::load_extensions;
1918		2453
1919	# reattach attachments to objects	2454	warn "reattaching attachments to objects/players";
1920	warn "reattach";
1921	_global_reattach;	2455	_global_reattach;
1922	};	2456	warn "reattaching attachments to maps";
		2457	reattach $_ for values %MAP;
1923		2458
1924	if ($@) {	2459	warn "loading reloadable resources";
		2460	init_resources;
		2461
		2462	warn "leaving sync_job";
		2463
		2464	1
		2465	} or do {
1925	warn $@;	2466	warn $@;
1926	warn "error while reloading, exiting.";	2467	warn "error while reloading, exiting.";
1927	exit 1;	2468	exit 1;
1928	}	2469	};
1929		2470
1930	warn "reloaded successfully";	2471	warn "reloaded";
1931	};	2472	};
1932		2473
1933	#############################################################################	2474	our $RELOAD_WATCHER; # used only during reload
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2475
1978	register_command "reload" => sub {	2476	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2477	my ($who, $arg) = @_;
1980		2478
1981	if ($who->flag (FLAG_WIZ)) {	2479	if ($who->flag (FLAG_WIZ)) {
1982	$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 {
1983	reload;	2490	reload;
1984	$who->message ("end of reload.");	2491	undef $RELOAD_WATCHER;
		2492	},
		2493	);
1985	}	2494	}
1986	};	2495	};
1987		2496
1988	unshift @INC, $LIBDIR;	2497	unshift @INC, $LIBDIR;
		2498
		2499	my $bug_warning = 0;
1989		2500
1990	$TICK_WATCHER = Event->timer (	2501	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2502	reentrant => 0,
		2503	parked => 1,
1992	prio => 0,	2504	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2505	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2506	data => WF_AUTOCANCEL,
1995	cb => sub {	2507	cb => sub {
1996	unless ($FREEZE) {	2508	if ($Coro::current != $Coro::main) {
		2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2510	unless ++$bug_warning > 10;
		2511	return;
		2512	}
		2513
		2514	$NOW = Event::time;
		2515
1997	cf::server_tick; # one server iteration	2516	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2517	$RUNTIME += $TICK;
1999	}
2000
2001	$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#
2002		2533
2003	# 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
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2536
2006	$TICK_WATCHER->at ($NEXT_TICK);	2537	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2538	$TICK_WATCHER->start;
2008	},	2539	},
2009	);	2540	);
2010		2541
		2542	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2543	BDB::max_poll_time $TICK * 0.1;
2012		2544	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2545	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2546	fd => BDB::poll_fileno,
2015	poll => 'r',	2547	poll => 'r',
2016	prio => 5,	2548	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	2549	data => WF_AUTOCANCEL,
2023	after => 0,	2550	cb => \&BDB::poll_cb,
2024	interval => 10,	2551	);
2025	cb => sub {	2552	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	2553
2027	write_runtime	2554	BDB::set_sync_prepare {
2028	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 $@;
2029	})->();	2588	};
2030	},	2589	}
2031	);	2590	}
		2591
		2592	{
		2593	IO::AIO::min_parallel 8;
		2594
		2595	undef $Coro::AIO::WATCHER;
		2596	IO::AIO::max_poll_time $TICK * 0.1;
		2597	$AIO_POLL_WATCHER = Event->io (
		2598	reentrant => 0,
		2599	data => WF_AUTOCANCEL,
		2600	fd => IO::AIO::poll_fileno,
		2601	poll => 'r',
		2602	prio => 6,
		2603	cb => \&IO::AIO::poll_cb,
		2604	);
		2605	}
		2606
		2607	END { cf::emergency_save }
2032		2608
2033	1	2609	1
2034		2610

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