ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.217 by root, Thu Feb 15 21:07:49 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;
…		…
252	my $runtime = cf::localdir . "/runtime";	359	my $runtime = cf::localdir . "/runtime";
253		360
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
255	or return;	362	or return;
256		363
257	my $value = $cf::RUNTIME;	364	my $value = $cf::RUNTIME + 90 + 10;
		365	# 10 is the runtime save interval, for a monotonic clock
		366	# 60 allows for the watchdog to kill the server.
		367
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0	368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;	369	and return;
260		370
		371	# always fsync - this file is important
261	aio_fsync $fh	372	aio_fsync $fh
262	and return;	373	and return;
263		374
264	close $fh	375	close $fh
265	or return;	376	or return;
…		…
271	}	382	}
272		383
273	=back	384	=back
274		385
275	=cut	386	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($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		387
387	#############################################################################	388	#############################################################################
388		389
389	=head2 ATTACHABLE OBJECTS	390	=head2 ATTACHABLE OBJECTS
390		391
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	517	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	518	our @CB_MAP = ();
518		519
519	my %attachment;	520	my %attachment;
520		521
		522	sub cf::attachable::thawer_merge {
		523	# simply override everything except _meta
		524	local $_[0]{_meta};
		525	%{$_[0]} = %{$_[1]};
		526	}
		527
521	sub _attach_cb($$$$) {	528	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	529	my ($registry, $event, $prio, $cb) = @_;
523		530
524	use sort 'stable';	531	use sort 'stable';
525		532
…		…
696	# object support	703	# object support
697		704
698	sub reattach {	705	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	706	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	707	my ($obj) = @_;
		708
		709	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		710
702	my $registry = $obj->registry;	711	my $registry = $obj->registry;
703		712
704	@$registry = ();	713	@$registry = ();
705		714
…		…
752	$filename, length $$rdata, scalar @$objs;	761	$filename, length $$rdata, scalar @$objs;
753		762
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	764	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	766	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	767	close $fh;
759		768
760	if (@$objs) {	769	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	771	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	772	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	773	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	774	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	775	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	776	aio_rename "$filename.pst~", "$filename.pst";
768	}	777	}
769	} else {	778	} else {
770	aio_unlink "$filename.pst";	779	aio_unlink "$filename.pst";
…		…
798	or return;	807	or return;
799		808
800	unless (aio_stat "$filename.pst") {	809	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	810	(aio_load "$filename.pst", $av) >= 0
802	or return;	811	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	812	$av = eval { (Storable::thaw $av)->{objs} };
804	}	813	}
805		814
		815	warn sprintf "loading %s (%d)\n",
		816	$filename, length $data, scalar @{$av || []};#d#
806	return ($data, $av);	817	return ($data, $av);
807	}	818	}
808		819
809	#############################################################################	820	#############################################################################
810	# command handling &c	821	# command handling &c
…		…
835	=cut	846	=cut
836		847
837	sub register_extcmd {	848	sub register_extcmd {
838	my ($name, $cb) = @_;	849	my ($name, $cb) = @_;
839		850
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	851	$EXTCMD{$name} = $cb;
844	}	852	}
845		853
846	cf::player->attach (	854	cf::player->attach (
847	on_command => sub {	855	on_command => sub {
848	my ($pl, $name, $params) = @_;	856	my ($pl, $name, $params) = @_;
…		…
861		869
862	my $msg = eval { from_json $buf };	870	my $msg = eval { from_json $buf };
863		871
864	if (ref $msg) {	872	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	874	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	875	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	876	}
869	}	877	}
870	} else {	878	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		881
874	cf::override;	882	cf::override;
875	},	883	},
876	);	884	);
877		885
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	886	sub load_extension {
885	my ($path) = @_;	887	my ($path) = @_;
886		888
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
888	my $base = $1;	890	my $base = $1;
889	my $pkg = $1;	891	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;	892	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";	893	$pkg = "ext::$pkg";
892		894
893	warn "loading '$path' into '$pkg'\n";	895	warn "... loading '$path' into '$pkg'\n";
894		896
895	open my $fh, "<:utf8", $path	897	open my $fh, "<:utf8", $path
896	or die "$path: $!";	898	or die "$path: $!";
897		899
898	my $source =	900	my $source =
899	"package $pkg; use strict; use utf8;\n"	901	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"	902	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })	903	. (do { local $/; <$fh> })
902	. "\n};\n1";	904	. "\n};\n1";
903		905
904	eval $source	906	unless (eval $source) {
905	or die $@ ? "$path: $@\n"	907	my $msg = $@ ? "$path: $@\n"
906	: "extension disabled.\n";	908	: "extension disabled.\n";
907		909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
908	push @exts, $pkg;	910	warn $@;
909	$ext_pkg{$base} = $pkg;	911	warn "mandatory extension failed to load, exiting.\n";
910		912	exit 1;
911	# no strict 'refs';	913	}
912	# @{"$pkg\::ISA"} = ext::;	914	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	# }	915	}
927		916
928	# remove commands	917	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	}	918	}
953		919
954	sub load_extensions {	920	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {	921	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	922	next unless -r $ext;
…		…
960	} or warn "$ext not loaded: $@";	926	} or warn "$ext not loaded: $@";
961	}	927	}
962	}	928	}
963		929
964	#############################################################################	930	#############################################################################
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		931
1002	=head2 CORE EXTENSIONS	932	=head2 CORE EXTENSIONS
1003		933
1004	Functions and methods that extend core crossfire objects.	934	Functions and methods that extend core crossfire objects.
1005		935
		936	=cut
		937
		938	package cf::player;
		939
		940	use Coro::AIO;
		941
1006	=head3 cf::player	942	=head3 cf::player
1007		943
1008	=over 4	944	=over 4
1009		945
1010	=item cf::player::exists $login	946	=item cf::player::find $login
1011		947
1012	Returns true when the given account exists.	948	Returns the given player object, loading it if necessary (might block).
1013		949
1014	=cut	950	=cut
1015		951
1016	sub cf::player::exists($) {	952	sub playerdir($) {
1017	cf::player::find $_[0]	953	cf::localdir
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	954	. "/"
		955	. cf::playerdir
		956	. "/"
		957	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		958	}
		959
		960	sub path($) {
		961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		962
		963	(playerdir $login) . "/$login.pl"
		964	}
		965
		966	sub find_active($) {
		967	$cf::PLAYER{$_[0]}
		968	and $cf::PLAYER{$_[0]}->active
		969	and $cf::PLAYER{$_[0]}
		970	}
		971
		972	sub exists($) {
		973	my ($login) = @_;
		974
		975	$cf::PLAYER{$login}
		976	or cf::sync_job { !aio_stat path $login }
		977	}
		978
		979	sub find($) {
		980	return $cf::PLAYER{$_[0]} || do {
		981	my $login = $_[0];
		982
		983	my $guard = cf::lock_acquire "user_find:$login";
		984
		985	$cf::PLAYER{$_[0]} || do {
		986	my $pl = load_pl path $login
		987	or return;
		988	$cf::PLAYER{$login} = $pl
		989	}
		990	}
		991	}
		992
		993	sub save($) {
		994	my ($pl) = @_;
		995
		996	return if $pl->{deny_save};
		997
		998	my $path = path $pl;
		999	my $guard = cf::lock_acquire "user_save:$path";
		1000
		1001	return if $pl->{deny_save};
		1002
		1003	aio_mkdir playerdir $pl, 0770;
		1004	$pl->{last_save} = $cf::RUNTIME;
		1005
		1006	$pl->save_pl ($path);
		1007	Coro::cede;
		1008	}
		1009
		1010	sub new($) {
		1011	my ($login) = @_;
		1012
		1013	my $self = create;
		1014
		1015	$self->ob->name ($login);
		1016	$self->{deny_save} = 1;
		1017
		1018	$cf::PLAYER{$login} = $self;
		1019
		1020	$self
		1021	}
		1022
		1023	=item $pl->quit_character
		1024
		1025	Nukes the player without looking back. If logged in, the connection will
		1026	be destroyed. May block for a long time.
		1027
		1028	=cut
		1029
		1030	sub quit_character {
		1031	my ($pl) = @_;
		1032
		1033	$pl->{deny_save} = 1;
		1034	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1035
		1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1037	$pl->deactivate;
		1038	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1039	$pl->ns->destroy if $pl->ns;
		1040
		1041	my $path = playerdir $pl;
		1042	my $temp = "$path~$cf::RUNTIME~deleting~";
		1043	aio_rename $path, $temp;
		1044	delete $cf::PLAYER{$pl->ob->name};
		1045	$pl->destroy;
		1046	IO::AIO::aio_rmtree $temp;
		1047	}
		1048
		1049	=item cf::player::list_logins
		1050
		1051	Returns am arrayref of all valid playernames in the system, can take a
		1052	while and may block, so not sync_job-capable, ever.
		1053
		1054	=cut
		1055
		1056	sub list_logins {
		1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1058	or return [];
		1059
		1060	my @logins;
		1061
		1062	for my $login (@$dirs) {
		1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1064	aio_read $fh, 0, 512, my $buf, 0 or next;
		1065	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1066
		1067	utf8::decode $login;
		1068	push @logins, $login;
		1069	}
		1070
		1071	\@logins
		1072	}
		1073
		1074	=item $player->maps
		1075
		1076	Returns an arrayref of map paths that are private for this
		1077	player. May block.
		1078
		1079	=cut
		1080
		1081	sub maps($) {
		1082	my ($pl) = @_;
		1083
		1084	$pl = ref $pl ? $pl->ob->name : $pl;
		1085
		1086	my $files = aio_readdir playerdir $pl
		1087	or return;
		1088
		1089	my @paths;
		1090
		1091	for (@$files) {
		1092	utf8::decode $_;
		1093	next if /\.(?:pl|pst)$/;
		1094	next unless /^$PATH_SEP/o;
		1095
		1096	push @paths, cf::map::normalise "~$pl/$_";
		1097	}
		1098
		1099	\@paths
1019	}	1100	}
1020		1101
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1102	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022		1103
1023	Sends an ext reply to the player.	1104	Sends an ext reply to the player.
1024		1105
1025	=cut	1106	=cut
1026		1107
1027	sub cf::player::ext_reply($$$%) {	1108	sub ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;	1109	my ($self, $id, %msg) = @_;
1029		1110
1030	$msg{msgid} = $id;	1111	$msg{msgid} = $id;
1031		1112
1032	$self->send ("ext " . to_json \%msg);	1113	$self->send ("ext " . cf::to_json \%msg);
1033	}	1114	}
		1115
		1116	package cf;
1034		1117
1035	=back	1118	=back
1036		1119
1037		1120
1038	=head3 cf::map	1121	=head3 cf::map
…		…
1044	package cf::map;	1127	package cf::map;
1045		1128
1046	use Fcntl;	1129	use Fcntl;
1047	use Coro::AIO;	1130	use Coro::AIO;
1048		1131
		1132	use overload
		1133	'""' => \&as_string,
		1134	fallback => 1;
		1135
1049	our $MAX_RESET = 7200;	1136	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1137	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1138
1054	sub generate_random_map {	1139	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1140	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1141	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1142	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1143	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1144	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1145	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1146	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1147	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1148	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1149	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1150	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1151	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1152	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1153	(cf::region::find $rmp->{region}), $rmp->{custom}
		1154	)
		1155	}
		1156
		1157	=item cf::map->register ($regex, $prio)
		1158
		1159	Register a handler for the map path matching the given regex at the
		1160	givne priority (higher is better, built-in handlers have priority 0, the
		1161	default).
		1162
		1163	=cut
		1164
		1165	sub register {
		1166	my (undef, $regex, $prio) = @_;
		1167	my $pkg = caller;
		1168
		1169	no strict;
		1170	push @{"$pkg\::ISA"}, __PACKAGE__;
		1171
		1172	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1173	}
		1174
		1175	# also paths starting with '/'
		1176	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1177
		1178	sub thawer_merge {
		1179	my ($self, $merge) = @_;
		1180
		1181	# we have to keep some variables in memory intact
		1182	local $self->{path};
		1183	local $self->{load_path};
		1184	local $self->{deny_save};
		1185	local $self->{deny_reset};
		1186
		1187	$self->SUPER::thawer_merge ($merge);
		1188	}
		1189
		1190	sub normalise {
		1191	my ($path, $base) = @_;
		1192
		1193	$path = "$path"; # make sure its a string
		1194
		1195	$path =~ s/\.map$//;
		1196
		1197	# map plan:
		1198	#
		1199	# /! non-realised random map exit (special hack!)
		1200	# {... are special paths that are not being touched
		1201	# ?xxx/... are special absolute paths
		1202	# ?random/... random maps
		1203	# /... normal maps
		1204	# ~user/... per-player map of a specific user
		1205
		1206	$path =~ s/$PATH_SEP/\//go;
		1207
		1208	# treat it as relative path if it starts with
		1209	# something that looks reasonable
		1210	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1211	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1212
		1213	$base =~ s{[^/]+/?$}{};
		1214	$path = "$base/$path";
		1215	}
		1216
		1217	for ($path) {
		1218	redo if s{//}{/};
		1219	redo if s{/\.?/}{/};
		1220	redo if s{/[^/]+/\.\./}{/};
		1221	}
		1222
		1223	$path
		1224	}
		1225
		1226	sub new_from_path {
		1227	my (undef, $path, $base) = @_;
		1228
		1229	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1230
		1231	$path = normalise $path, $base;
		1232
		1233	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1234	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1235	my $self = bless cf::map::new, $pkg;
		1236	$self->{path} = $path; $self->path ($path);
		1237	$self->init; # pass $1 etc.
		1238	return $self;
		1239	}
		1240	}
		1241
		1242	Carp::carp "unable to resolve path '$path' (base '$base').";
		1243	()
		1244	}
		1245
		1246	sub init {
		1247	my ($self) = @_;
		1248
		1249	$self
		1250	}
		1251
		1252	sub as_string {
		1253	my ($self) = @_;
		1254
		1255	"$self->{path}"
		1256	}
		1257
		1258	# the displayed name, this is a one way mapping
		1259	sub visible_name {
		1260	&as_string
		1261	}
		1262
		1263	# the original (read-only) location
		1264	sub load_path {
		1265	my ($self) = @_;
		1266
		1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
		1268	}
		1269
		1270	# the temporary/swap location
		1271	sub save_path {
		1272	my ($self) = @_;
		1273
		1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
		1276	}
		1277
		1278	# the unique path, undef == no special unique path
		1279	sub uniq_path {
		1280	my ($self) = @_;
		1281
		1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1071	}	1284	}
1072		1285
1073	# and all this just because we cannot iterate over	1286	# and all this just because we cannot iterate over
1074	# all maps in C++...	1287	# all maps in C++...
1075	sub change_all_map_light {	1288	sub change_all_map_light {
1076	my ($change) = @_;	1289	my ($change) = @_;
1077		1290
1078	$_->change_map_light ($change) for values %cf::MAP;	1291	$_->change_map_light ($change)
		1292	for grep $_->outdoor, values %cf::MAP;
1079	}	1293	}
1080		1294
		1295	sub unlink_save {
		1296	my ($self) = @_;
		1297
		1298	utf8::encode (my $save = $self->save_path);
		1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1301	}
		1302
1081	sub try_load_header($) {	1303	sub load_header_from($) {
1082	my ($path) = @_;	1304	my ($self, $path) = @_;
1083		1305
1084	utf8::encode $path;	1306	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1307	#aio_open $path, O_RDONLY, 0
		1308	# or return;
		1309
		1310	$self->_load_header ($path)
1086	or return;	1311	or return;
1087		1312
1088	my $map = cf::map::new	1313	$self->{load_path} = $path;
		1314
		1315	1
		1316	}
		1317
		1318	sub load_header_orig {
		1319	my ($self) = @_;
		1320
		1321	$self->load_header_from ($self->load_path)
		1322	}
		1323
		1324	sub load_header_temp {
		1325	my ($self) = @_;
		1326
		1327	$self->load_header_from ($self->save_path)
		1328	}
		1329
		1330	sub prepare_temp {
		1331	my ($self) = @_;
		1332
		1333	$self->last_access ((delete $self->{last_access})
		1334	|| $cf::RUNTIME); #d#
		1335	# safety
		1336	$self->{instantiate_time} = $cf::RUNTIME
		1337	if $self->{instantiate_time} > $cf::RUNTIME;
		1338	}
		1339
		1340	sub prepare_orig {
		1341	my ($self) = @_;
		1342
		1343	$self->{load_original} = 1;
		1344	$self->{instantiate_time} = $cf::RUNTIME;
		1345	$self->last_access ($cf::RUNTIME);
		1346	$self->instantiate;
		1347	}
		1348
		1349	sub load_header {
		1350	my ($self) = @_;
		1351
		1352	if ($self->load_header_temp) {
		1353	$self->prepare_temp;
		1354	} else {
		1355	$self->load_header_orig
1089	or return;	1356	or return;
		1357	$self->prepare_orig;
		1358	}
1090		1359
1091	$map->load_header ($path)	1360	1
1092	or return;
1093
1094	$map->{load_path} = $path;
1095	use Data::Dumper; warn Dumper $map;#d#
1096
1097	$map
1098	}	1361	}
1099		1362
		1363	sub find;
1100	sub find_map {	1364	sub find {
1101	my ($path, $origin) = @_;	1365	my ($path, $origin) = @_;
1102		1366
1103	#warn "find_map<$path,$origin>\n";#d#	1367	$path = normalise $path, $origin && $origin->path;
1104		1368
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1369	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1370
1108	$cf::MAP{$key} || do {	1371	$cf::MAP{$path} || do {
1109	# do it the slow way	1372	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1373	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;	1374	or return;
1124		1375
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);	1376	$map->{last_save} = $cf::RUNTIME;
1136		1377
1137	$map->reset if $map->should_reset;	1378	$map->load_header
		1379	or return;
1138		1380
		1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1382	# doing this can freeze the server in a sync job, obviously
		1383	#$cf::WAIT_FOR_TICK->wait;
		1384	$map->reset;
		1385	undef $guard;
		1386	return find $path;
		1387	}
		1388
1139	$cf::MAP{$key} = $map	1389	$cf::MAP{$path} = $map
1140	}	1390	}
1141	}	1391	}
		1392
		1393	sub pre_load { }
		1394	sub post_load { }
1142		1395
1143	sub load {	1396	sub load {
1144	my ($self) = @_;	1397	my ($self) = @_;
1145		1398
		1399	local $self->{deny_reset} = 1; # loading can take a long time
		1400
		1401	my $path = $self->{path};
		1402	my $guard = cf::lock_acquire "map_load:$path";
		1403
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1404	return if $self->in_memory != cf::MAP_SWAPPED;
1147		1405
1148	$self->in_memory (cf::MAP_LOADING);	1406	$self->in_memory (cf::MAP_LOADING);
1149		1407
1150	my $path = $self->{path};
1151
1152	$self->alloc;	1408	$self->alloc;
		1409
		1410	$self->pre_load;
		1411
1153	$self->load_objects ($self->{load_path}, 1)	1412	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1413	or return;
1155		1414
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1416	if delete $self->{load_original};
1157		1417
1158	if (my $uniq = $path->uniq_path) {	1418	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1419	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1420	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1421	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1422	$self->_load_objects ($uniq, 0);
1163	}	1423	}
1164	}	1424	}
		1425
		1426	Coro::cede;
1165		1427
1166	# now do the right thing for maps	1428	# now do the right thing for maps
1167	$self->link_multipart_objects;	1429	$self->link_multipart_objects;
1168		1430
1169	if ($self->{path}->is_style_map) {	1431	unless ($self->{deny_activate}) {
1170	$self->{deny_save} = 1;	1432	$self->decay_objects;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;	1433	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;	1434	$self->update_buttons;
		1435	Coro::cede;
1176	$self->set_darkness_map;	1436	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1437	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1438	unless $self->difficulty;
		1439	Coro::cede;
1179	$self->activate;	1440	$self->activate;
1180	}	1441	}
1181		1442
		1443	$self->post_load;
		1444
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1445	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1446	}
1184		1447
1185	sub load_map_sync {	1448	sub customise_for {
		1449	my ($self, $ob) = @_;
		1450
		1451	return find "~" . $ob->name . "/" . $self->{path}
		1452	if $self->per_player;
		1453
		1454	$self
		1455	}
		1456
		1457	# find and load all maps in the 3x3 area around a map
		1458	sub load_diag {
		1459	my ($map) = @_;
		1460
		1461	my @diag; # diagonal neighbours
		1462
		1463	for (0 .. 3) {
		1464	my $neigh = $map->tile_path ($_)
		1465	or next;
		1466	$neigh = find $neigh, $map
		1467	or next;
		1468	$neigh->load;
		1469
		1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1472	}
		1473
		1474	for (@diag) {
		1475	my $neigh = find @$_
		1476	or next;
		1477	$neigh->load;
		1478	}
		1479	}
		1480
		1481	sub find_sync {
1186	my ($path, $origin) = @_;	1482	my ($path, $origin) = @_;
1187		1483
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1484	cf::sync_job { find $path, $origin }
		1485	}
1189		1486
1190	cf::sync_job {	1487	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1488	my ($map) = @_;
1192	or return;	1489
		1490	cf::sync_job { $map->load };
		1491	}
		1492
		1493	our %MAP_PREFETCH;
		1494	our $MAP_PREFETCHER = undef;
		1495
		1496	sub find_async {
		1497	my ($path, $origin) = @_;
		1498
		1499	$path = normalise $path, $origin && $origin->{path};
		1500
		1501	if (my $map = $cf::MAP{$path}) {
		1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1503	}
		1504
		1505	undef $MAP_PREFETCH{$path};
		1506	$MAP_PREFETCHER ||= cf::async {
		1507	while (%MAP_PREFETCH) {
		1508	for my $path (keys %MAP_PREFETCH) {
		1509	my $map = find $path
		1510	or next;
1193	$map->load;	1511	$map->load;
1194	$map	1512
		1513	delete $MAP_PREFETCH{$path};
		1514	}
		1515	}
		1516	undef $MAP_PREFETCHER;
1195	}	1517	};
		1518	$MAP_PREFETCHER->prio (6);
		1519
		1520	()
1196	}	1521	}
1197		1522
1198	sub save {	1523	sub save {
1199	my ($self) = @_;	1524	my ($self) = @_;
1200		1525
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1526	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1527
1204	$self->{last_save} = $cf::RUNTIME;	1528	$self->{last_save} = $cf::RUNTIME;
1205		1529
1206	return unless $self->dirty;	1530	return unless $self->dirty;
1207		1531
		1532	my $save = $self->save_path; utf8::encode $save;
		1533	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1534
1208	$self->{load_path} = $save;	1535	$self->{load_path} = $save;
1209		1536
1210	return if $self->{deny_save};	1537	return if $self->{deny_save};
1211		1538
1212	warn "saving map ", $self->path;	1539	local $self->{last_access} = $self->last_access;#d#
		1540
		1541	cf::async {
		1542	$_->contr->save for $self->players;
		1543	};
1213		1544
1214	if ($uniq) {	1545	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1547	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1548	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1549	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1550	}
1220	}	1551	}
1221		1552
1222	sub swap_out {	1553	sub swap_out {
1223	my ($self) = @_;	1554	my ($self) = @_;
		1555
		1556	# save first because save cedes
		1557	$self->save;
		1558
		1559	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1560
1225	return if $self->players;	1561	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1562	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1563	return if $self->{deny_save};
1228		1564
1229	$self->save;
1230	$self->clear;	1565	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1566	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1567	}
1233		1568
		1569	sub reset_at {
		1570	my ($self) = @_;
		1571
		1572	# TODO: safety, remove and allow resettable per-player maps
		1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1574	return 1e99 if $self->{deny_reset};
		1575
		1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1578
		1579	$time + $to
		1580	}
		1581
1234	sub should_reset {	1582	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) = @_;	1583	my ($self) = @_;
1251		1584
1252	utf8::encode (my $save = $self->{path}->save_path);	1585	$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	}	1586	}
1256		1587
1257	sub reset {	1588	sub reset {
1258	my ($self) = @_;	1589	my ($self) = @_;
1259		1590
		1591	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1592
1260	return if $self->players;	1593	return if $self->players;
1261	return if $self->{path}{user_rel};#d#	1594	return if $self->isa ("ext::map_per_player");#d#
1262		1595
1263	warn "resetting map ", $self->path;#d#	1596	warn "resetting map ", $self->path;#d#
1264		1597
		1598	$self->in_memory (cf::MAP_SWAPPED);
		1599
		1600	# need to save uniques path
		1601	unless ($self->{deny_save}) {
		1602	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1603
		1604	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1605	if $uniq;
		1606	}
		1607
1265	delete $cf::MAP{$self->path};	1608	delete $cf::MAP{$self->path};
		1609
		1610	$self->clear;
1266		1611
1267	$_->clear_links_to ($self) for values %cf::MAP;	1612	$_->clear_links_to ($self) for values %cf::MAP;
1268		1613
1269	$self->unlink_save;	1614	$self->unlink_save;
1270	$self->destroy;	1615	$self->destroy;
1271	}	1616	}
1272		1617
1273	sub customise_for {	1618	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1619
1276	if ($map->per_player) {	1620	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1621	my ($self) = @_;
1278	}
1279		1622
1280	$map	1623	delete $cf::MAP{$self->path};
1281	}
1282		1624
1283	sub emergency_save {	1625	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		1626
1286	warn "enter emergency map save\n";	1627	bless $self, "cf::map";
		1628	delete $self->{deny_reset};
		1629	$self->{deny_save} = 1;
		1630	$self->reset_timeout (1);
		1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		1632
1288	cf::sync_job {	1633	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";	1634
1290	$_->save for values %cf::MAP;	1635	$self->reset; # polite request, might not happen
		1636	}
		1637
		1638	=item cf::map::unique_maps
		1639
		1640	Returns an arrayref of paths of all shared maps that have
		1641	instantiated unique items. May block.
		1642
		1643	=cut
		1644
		1645	sub unique_maps() {
		1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1647	or return;
		1648
		1649	my @paths;
		1650
		1651	for (@$files) {
		1652	utf8::decode $_;
		1653	next if /\.pst$/;
		1654	next unless /^$PATH_SEP/o;
		1655
		1656	push @paths, cf::map::normalise $_;
1291	};	1657	}
1292		1658
1293	warn "end emergency map save\n";	1659	\@paths
1294	}	1660	}
1295		1661
1296	package cf;	1662	package cf;
1297		1663
1298	=back	1664	=back
1299		1665
		1666	=head3 cf::object
		1667
		1668	=cut
		1669
		1670	package cf::object;
		1671
		1672	=over 4
		1673
		1674	=item $ob->inv_recursive
		1675
		1676	Returns the inventory of the object _and_ their inventories, recursively.
		1677
		1678	=cut
		1679
		1680	sub inv_recursive_;
		1681	sub inv_recursive_ {
		1682	map { $_, inv_recursive_ $_->inv } @_
		1683	}
		1684
		1685	sub inv_recursive {
		1686	inv_recursive_ inv $_[0]
		1687	}
		1688
		1689	package cf;
		1690
		1691	=back
1300		1692
1301	=head3 cf::object::player	1693	=head3 cf::object::player
1302		1694
1303	=over 4	1695	=over 4
1304		1696
…		…
1340	(ref $cf::CFG{"may_$access"}	1732	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1733	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	1734	: $cf::CFG{"may_$access"})
1343	}	1735	}
1344		1736
		1737	=item $player_object->enter_link
		1738
		1739	Freezes the player and moves him/her to a special map (C<{link}>).
		1740
		1741	The player should be reasonably safe there for short amounts of time. You
		1742	I<MUST> call C<leave_link> as soon as possible, though.
		1743
		1744	Will never block.
		1745
		1746	=item $player_object->leave_link ($map, $x, $y)
		1747
		1748	Moves the player out of the special C<{link}> map onto the specified
		1749	map. If the map is not valid (or omitted), the player will be moved back
		1750	to the location he/she was before the call to C<enter_link>, or, if that
		1751	fails, to the emergency map position.
		1752
		1753	Might block.
		1754
		1755	=cut
		1756
		1757	sub link_map {
		1758	unless ($LINK_MAP) {
		1759	$LINK_MAP = cf::map::find "{link}"
		1760	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1761	$LINK_MAP->load;
		1762	}
		1763
		1764	$LINK_MAP
		1765	}
		1766
1345	sub cf::object::player::enter_link {	1767	sub cf::object::player::enter_link {
1346	my ($self) = @_;	1768	my ($self) = @_;
1347		1769
1348	return if $self->map == $LINK_MAP;	1770	$self->deactivate_recursive;
1349		1771
		1772	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1773
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;	1775	if $self->map;
1352		1776
1353	$self->enter_map ($LINK_MAP, 20, 20);	1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1354	$self->deactivate_recursive;
1355	}	1778	}
1356		1779
1357	sub cf::object::player::leave_link {	1780	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	1781	my ($self, $map, $x, $y) = @_;
1359		1782
1360	my $link_pos = delete $self->{_link_pos};	1783	my $link_pos = delete $self->{_link_pos};
1361		1784
1362	unless ($map) {	1785	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	1786	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	1787	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	1788	$map = cf::map::find $map;
1368		1789
1369	unless ($map) {	1790	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	1791	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	1792	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	1793	or die "FATAL: cannot load emergency map\n";
1373	}	1794	}
1374	}	1795	}
1375		1796
1376	($x, $y) = (-1, -1)	1797	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	1800	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	1801	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	1802	if $x <=0 && $y <= 0;
1382		1803
1383	$map->load;	1804	$map->load;
		1805	$map->load_diag;
1384		1806
		1807	return unless $self->contr->active;
1385	$self->activate_recursive;	1808	$self->activate_recursive;
		1809
		1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	1811	$self->enter_map ($map, $x, $y);
1387	}	1812	}
1388		1813
		1814	cf::player->attach (
		1815	on_logout => sub {
		1816	my ($pl) = @_;
		1817
		1818	# abort map switching before logout
		1819	if ($pl->ob->{_link_pos}) {
		1820	cf::sync_job {
		1821	$pl->ob->leave_link
		1822	};
		1823	}
		1824	},
		1825	on_login => sub {
		1826	my ($pl) = @_;
		1827
		1828	# try to abort aborted map switching on player login :)
		1829	# should happen only on crashes
		1830	if ($pl->ob->{_link_pos}) {
		1831	$pl->ob->enter_link;
		1832	(async {
		1833	$pl->ob->reply (undef,
		1834	"There was an internal problem at your last logout, "
		1835	. "the server will try to bring you to your intended destination in a second.",
		1836	cf::NDI_RED);
		1837	# we need this sleep as the login has a concurrent enter_exit running
		1838	# and this sleep increases chances of the player not ending up in scorn
		1839	Coro::Timer::sleep 1;
		1840	$pl->ob->leave_link;
		1841	})->prio (2);
		1842	}
		1843	},
		1844	);
		1845
1389	=item $player_object->goto_map ($map, $x, $y)	1846	=item $player_object->goto ($path, $x, $y)
1390		1847
1391	=cut	1848	=cut
1392		1849
1393	sub cf::object::player::goto_map {	1850	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	1851	my ($self, $path, $x, $y) = @_;
1395		1852
1396	$self->enter_link;	1853	$self->enter_link;
1397		1854
1398	(Coro::async {	1855	(async {
1399	$path = new cf::path $path;	1856	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	1857	my $map = cf::map::find $path;
1402	$map = $map->customise_for ($self) if $map;	1858	$map = $map->customise_for ($self) if $map;
1403
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	1859	$map
		1860	} or
		1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1406		1862
1407	$self->leave_link ($map, $x, $y);	1863	$self->leave_link ($map, $x, $y);
1408	})->prio (1);	1864	})->prio (1);
1409	}	1865	}
1410		1866
…		…
1414		1870
1415	sub parse_random_map_params {	1871	sub parse_random_map_params {
1416	my ($spec) = @_;	1872	my ($spec) = @_;
1417		1873
1418	my $rmp = { # defaults	1874	my $rmp = { # defaults
1419	xsize => 10,	1875	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	1876	ysize => (cf::rndm 15, 40),
		1877	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1878	#layout => string,
1421	};	1879	};
1422		1880
1423	for (split /\n/, $spec) {	1881	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	1882	my ($k, $v) = split /\s+/, $_, 2;
1425		1883
…		…
1429	$rmp	1887	$rmp
1430	}	1888	}
1431		1889
1432	sub prepare_random_map {	1890	sub prepare_random_map {
1433	my ($exit) = @_;	1891	my ($exit) = @_;
		1892
		1893	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		1894
1435	# all this does is basically replace the /! path by	1895	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	1896	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	1897	# that depends on the exit object
1438		1898
1439	my $rmp = parse_random_map_params $exit->msg;	1899	my $rmp = parse_random_map_params $exit->msg;
1440		1900
1441	if ($exit->map) {	1901	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	1902	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	1903	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	1904	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	1905	$rmp->{origin_y} = $exit->y;
1446	}	1906	}
1447		1907
1448	$rmp->{random_seed} ||= $exit->random_seed;	1908	$rmp->{random_seed} ||= $exit->random_seed;
1449		1909
1450	my $data = cf::to_json $rmp;	1910	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	1911	my $md5 = Digest::MD5::md5_hex $data;
		1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1452		1913
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	1915	aio_write $fh, 0, (length $data), $data, 0;
		1916	undef $fh;
		1917	aio_rename "$meta~", $meta;
1455		1918
1456	$exit->slaying ("?random/$md5");	1919	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	1920	$exit->msg (undef);
1458	}	1921	}
1459	}	1922	}
…		…
1461	sub cf::object::player::enter_exit {	1924	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	1925	my ($self, $exit) = @_;
1463		1926
1464	return unless $self->type == cf::PLAYER;	1927	return unless $self->type == cf::PLAYER;
1465		1928
		1929	if ($exit->slaying eq "/!") {
		1930	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1931	cf::sync_job { prepare_random_map $exit };
		1932	}
		1933
		1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1935	my $hp = $exit->stats->hp;
		1936	my $sp = $exit->stats->sp;
		1937
1466	$self->enter_link;	1938	$self->enter_link;
1467		1939
1468	(Coro::async {	1940	(async {
		1941	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	1942	unless (eval {
1470		1943	$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		1944
1477	1;	1945	1;
1478	}) {	1946	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	1947	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	1948	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	1949	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	1950	cf::NDI_UNIQUE | cf::NDI_RED);
1483		1951
1484	warn "ERROR in enter_exit: $@";	1952	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	1953	$self->leave_link;
1486	}	1954	}
…		…
1537	on_reply => sub {	2005	on_reply => sub {
1538	my ($ns, $msg) = @_;	2006	my ($ns, $msg) = @_;
1539		2007
1540	# this weird shuffling is so that direct followup queries	2008	# this weird shuffling is so that direct followup queries
1541	# get handled first	2009	# get handled first
1542	my $queue = delete $ns->{query_queue};	2010	my $queue = delete $ns->{query_queue}
		2011	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2012
1544	(shift @$queue)->[1]->($msg);	2013	(shift @$queue)->[1]->($msg);
		2014	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2015
1546	push @{ $ns->{query_queue} }, @$queue;	2016	push @{ $ns->{query_queue} }, @$queue;
1547		2017
1548	if (@{ $ns->{query_queue} } == @$queue) {	2018	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2019	if (@$queue) {
…		…
1553	}	2023	}
1554	}	2024	}
1555	},	2025	},
1556	);	2026	);
1557		2027
1558	=item $client->coro (\&cb)	2028	=item $client->async (\&cb)
1559		2029
1560	Create a new coroutine, running the specified callback. The coroutine will	2030	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2031	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2032	or loss of connection).
1563		2033
1564	=cut	2034	=cut
1565		2035
1566	sub cf::client::coro {	2036	sub cf::client::async {
1567	my ($self, $cb) = @_;	2037	my ($self, $cb) = @_;
1568		2038
1569	my $coro; $coro = async {	2039	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2040
1576	$coro->on_destroy (sub {	2041	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2042	delete $self->{_coro}{$coro+0};
1578	});	2043	});
1579		2044
…		…
1715	The parameter C<$family> should best start with the name of the extension	2180	The parameter C<$family> should best start with the name of the extension
1716	using it, it should be unique.	2181	using it, it should be unique.
1717		2182
1718	=over 4	2183	=over 4
1719		2184
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	2185	=item $value = cf::db_get $family => $key
1727		2186
1728	Returns a single value from the database	2187	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		2188
1735	=item cf::db_put $family => $key => $value	2189	=item cf::db_put $family => $key => $value
1736		2190
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you	2191	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		2192
1748	=cut	2193	=cut
1749		2194
1750	our $DB;	2195	our $DB;
1751		2196
1752	{	2197	sub db_init {
		2198	unless ($DB) {
		2199	$DB = BDB::db_create $DB_ENV;
		2200
		2201	cf::sync_job {
		2202	eval {
		2203	$DB->set_flags (BDB::CHKSUM);
		2204
		2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		2207	cf::cleanup "db_open(db): $!" if $!;
		2208	};
		2209	cf::cleanup "db_open(db): $@" if $@;
		2210	};
		2211
1753	my $path = cf::localdir . "/database.pst";	2212	my $path = cf::localdir . "/database.pst";
		2213	if (stat $path) {
		2214	cf::sync_job {
		2215	my $pst = Storable::retrieve $path;
1754		2216
1755	sub db_load() {	2217	cf::db_put (board => data => $pst->{board});
1756	warn "loading database $path\n";#d# remove later	2218	cf::db_put (guildrules => data => $pst->{guildrules});
1757	$DB = stat $path ? Storable::retrieve $path : { };	2219	cf::db_put (rent => balance => $pst->{rent}{balance});
1758	}	2220	BDB::db_env_txn_checkpoint $DB_ENV;
1759		2221
1760	my $pid;	2222	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	}	2223	};
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	},	2224	}
1809	);	2225	}
		2226	}
		2227
		2228	sub db_get($$) {
		2229	my $key = "$_[0]/$_[1]";
		2230
		2231	cf::sync_job {
		2232	BDB::db_get $DB, undef, $key, my $data;
		2233
		2234	$! ? ()
		2235	: Compress::LZF::sthaw $data
		2236	}
		2237	}
		2238
		2239	sub db_put($$$) {
		2240	BDB::dbreq_pri 4;
		2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
1810	}	2242	}
1811		2243
1812	#############################################################################	2244	#############################################################################
1813	# the server's main()	2245	# the server's init and main functions
		2246
		2247	sub init_resources {
		2248	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
		2249	or die "unable to load regions file\n";#d#
		2250	}
1814		2251
1815	sub cfg_load {	2252	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2253	open my $fh, "<:utf8", cf::confdir . "/config"
1817	or return;	2254	or return;
1818		2255
1819	local $/;	2256	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2257	*CFG = YAML::Syck::Load <$fh>;
		2258
		2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2260
		2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2263
		2264	if (exists $CFG{mlockall}) {
		2265	eval {
		2266	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2267	and die "WARNING: m(un)lockall failed: $!\n";
		2268	};
		2269	warn $@ if $@;
		2270	}
		2271	}
		2272
		2273	sub init {
		2274	init_resources;
1821	}	2275	}
1822		2276
1823	sub main {	2277	sub main {
1824	# we must not ever block the main coroutine	2278	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2279	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2281	(async {
1828	Event::one_event;	2282	Event::one_event;
1829	})->();	2283	})->prio (Coro::PRIO_MAX);
1830	};	2284	};
1831		2285
1832	cfg_load;	2286	cfg_load;
1833	db_load;	2287	db_init;
1834	load_extensions;	2288	load_extensions;
		2289
		2290	$TICK_WATCHER->start;
1835	Event::loop;	2291	Event::loop;
1836	}	2292	}
1837		2293
1838	#############################################################################	2294	#############################################################################
1839	# initialisation	2295	# initialisation and cleanup
		2296
		2297	# install some emergency cleanup handlers
		2298	BEGIN {
		2299	for my $signal (qw(INT HUP TERM)) {
		2300	Event->signal (
		2301	reentrant => 0,
		2302	data => WF_AUTOCANCEL,
		2303	signal => $signal,
		2304	prio => 0,
		2305	cb => sub {
		2306	cf::cleanup "SIG$signal";
		2307	},
		2308	);
		2309	}
		2310	}
		2311
		2312	sub emergency_save() {
		2313	my $freeze_guard = cf::freeze_mainloop;
		2314
		2315	warn "enter emergency perl save\n";
		2316
		2317	cf::sync_job {
		2318	# use a peculiar iteration method to avoid tripping on perl
		2319	# refcount bugs in for. also avoids problems with players
		2320	# and maps saved/destroyed asynchronously.
		2321	warn "begin emergency player save\n";
		2322	for my $login (keys %cf::PLAYER) {
		2323	my $pl = $cf::PLAYER{$login} or next;
		2324	$pl->valid or next;
		2325	$pl->save;
		2326	}
		2327	warn "end emergency player save\n";
		2328
		2329	warn "begin emergency map save\n";
		2330	for my $path (keys %cf::MAP) {
		2331	my $map = $cf::MAP{$path} or next;
		2332	$map->valid or next;
		2333	$map->save;
		2334	}
		2335	warn "end emergency map save\n";
		2336
		2337	warn "begin emergency database checkpoint\n";
		2338	BDB::db_env_txn_checkpoint $DB_ENV;
		2339	warn "end emergency database checkpoint\n";
		2340	};
		2341
		2342	warn "leave emergency perl save\n";
		2343	}
		2344
		2345	sub post_cleanup {
		2346	my ($make_core) = @_;
		2347
		2348	warn Carp::longmess "post_cleanup backtrace"
		2349	if $make_core;
		2350	}
1840		2351
1841	sub reload() {	2352	sub reload() {
1842	# can/must only be called in main	2353	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2354	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2355	warn "can only reload from main coroutine";
1845	return;	2356	return;
1846	}	2357	}
1847		2358
1848	warn "reloading...";	2359	warn "reloading...";
1849		2360
1850	local $FREEZE = 1;	2361	warn "entering sync_job";
		2362
		2363	cf::sync_job {
		2364	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2365	cf::emergency_save;
		2366	cf::write_runtime; # external watchdog should not bark
1852		2367
1853	eval {	2368	warn "syncing database to disk";
		2369	BDB::db_env_txn_checkpoint $DB_ENV;
		2370
1854	# if anything goes wrong in here, we should simply crash as we already saved	2371	# if anything goes wrong in here, we should simply crash as we already saved
1855		2372
1856	# cancel all watchers	2373	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2374	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2375	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2376	}
1860		2377
		2378	warn "flushing outstanding aio requests";
		2379	for (;;) {
		2380	BDB::flush;
		2381	IO::AIO::flush;
		2382	Coro::cede;
		2383	last unless IO::AIO::nreqs || BDB::nreqs;
		2384	warn "iterate...";
		2385	}
		2386
1861	# cancel all extension coros	2387	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2388	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2389	%EXT_CORO = ();
1864		2390
1865	# unload all extensions	2391	warn "removing commands";
1866	for (@exts) {	2392	%COMMAND = ();
		2393
		2394	warn "removing ext commands";
		2395	%EXTCMD = ();
		2396
		2397	warn "unloading/nuking all extensions";
		2398	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2399	warn "... unloading $pkg";
1868	unload_extension $_;	2400
		2401	if (my $cb = $pkg->can ("unload")) {
		2402	eval {
		2403	$cb->($pkg);
		2404	1
		2405	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2406	}
1870		2407
		2408	warn "... nuking $pkg";
		2409	Symbol::delete_package $pkg;
		2410	}
		2411
1871	# unload all modules loaded from $LIBDIR	2412	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2413	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2414	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2415
1875	warn "removing <$k>";	2416	warn "... unloading $k";
1876	delete $INC{$k};	2417	delete $INC{$k};
1877		2418
1878	$k =~ s/\.pm$//;	2419	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2420	$k =~ s/\//::/g;
1880		2421
…		…
1883	}	2424	}
1884		2425
1885	Symbol::delete_package $k;	2426	Symbol::delete_package $k;
1886	}	2427	}
1887		2428
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2429	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2430	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2432
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2433	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2434	delete $INC{"cf.pm"};
1901		2435
1902	# don't, removes xs symbols, too,	2436	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2437	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2438	#Symbol::delete_package __PACKAGE__;
1905		2439
1906	# reload cf.pm	2440	warn "unload completed, starting to reload now";
		2441
1907	warn "reloading cf.pm";	2442	warn "reloading cf.pm";
1908	require cf;	2443	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2445
1911	# load config and database again	2446	warn "loading config and database again";
1912	cf::cfg_load;	2447	cf::cfg_load;
1913	cf::db_load;
1914		2448
1915	# load extensions
1916	warn "load extensions";	2449	warn "loading extensions";
1917	cf::load_extensions;	2450	cf::load_extensions;
1918		2451
1919	# reattach attachments to objects	2452	warn "reattaching attachments to objects/players";
1920	warn "reattach";
1921	_global_reattach;	2453	_global_reattach;
1922	};	2454	warn "reattaching attachments to maps";
		2455	reattach $_ for values %MAP;
1923		2456
1924	if ($@) {	2457	warn "loading reloadable resources";
		2458	init_resources;
		2459
		2460	warn "leaving sync_job";
		2461
		2462	1
		2463	} or do {
1925	warn $@;	2464	warn $@;
1926	warn "error while reloading, exiting.";	2465	warn "error while reloading, exiting.";
1927	exit 1;	2466	exit 1;
1928	}	2467	};
1929		2468
1930	warn "reloaded successfully";	2469	warn "reloaded";
1931	};	2470	};
1932		2471
1933	#############################################################################	2472	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} = $LINK_MAP;
1974	}
1975
1976	register "<global>", __PACKAGE__;
1977		2473
1978	register_command "reload" => sub {	2474	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2475	my ($who, $arg) = @_;
1980		2476
1981	if ($who->flag (FLAG_WIZ)) {	2477	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");	2478	$who->message ("reloading server.");
		2479
		2480	# doing reload synchronously and two reloads happen back-to-back,
		2481	# coro crashes during coro_state_free->destroy here.
		2482
		2483	$RELOAD_WATCHER ||= Event->timer (
		2484	reentrant => 0,
		2485	after => 0,
		2486	data => WF_AUTOCANCEL,
		2487	cb => sub {
1983	reload;	2488	reload;
1984	$who->message ("end of reload.");	2489	undef $RELOAD_WATCHER;
		2490	},
		2491	);
1985	}	2492	}
1986	};	2493	};
1987		2494
1988	unshift @INC, $LIBDIR;	2495	unshift @INC, $LIBDIR;
		2496
		2497	my $bug_warning = 0;
1989		2498
1990	$TICK_WATCHER = Event->timer (	2499	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2500	reentrant => 0,
		2501	parked => 1,
1992	prio => 0,	2502	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2503	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2504	data => WF_AUTOCANCEL,
1995	cb => sub {	2505	cb => sub {
1996	unless ($FREEZE) {	2506	if ($Coro::current != $Coro::main) {
		2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2508	unless ++$bug_warning > 10;
		2509	return;
		2510	}
		2511
		2512	$NOW = Event::time;
		2513
1997	cf::server_tick; # one server iteration	2514	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2515	$RUNTIME += $TICK;
1999	}
2000
2001	$NEXT_TICK += $TICK;	2516	$NEXT_TICK += $TICK;
		2517
		2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2519	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2520	Coro::async_pool {
		2521	write_runtime
		2522	or warn "ERROR: unable to write runtime file: $!";
		2523	};
		2524	}
		2525
		2526
		2527	$WAIT_FOR_TICK->broadcast;
		2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2529
		2530	# my $AFTER = Event::time;
		2531	# warn $AFTER - $NOW;#d#
2002		2532
2003	# if we are delayed by four ticks or more, skip them all	2533	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2005		2535
2006	$TICK_WATCHER->at ($NEXT_TICK);	2536	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2537	$TICK_WATCHER->start;
2008	},	2538	},
2009	);	2539	);
2010		2540
		2541	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2542	BDB::max_poll_time $TICK * 0.1;
2012		2543	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2544	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2545	fd => BDB::poll_fileno,
2015	poll => 'r',	2546	poll => 'r',
2016	prio => 5,	2547	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	2548	data => WF_AUTOCANCEL,
2023	after => 0,	2549	cb => \&BDB::poll_cb,
2024	interval => 10,	2550	);
2025	cb => sub {	2551	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	2552
2027	write_runtime	2553	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	2554	my $status;
		2555	my $current = $Coro::current;
		2556	(
		2557	sub {
		2558	$status = $!;
		2559	$current->ready; undef $current;
		2560	},
		2561	sub {
		2562	Coro::schedule while defined $current;
		2563	$! = $status;
		2564	},
		2565	)
		2566	};
		2567
		2568	unless ($DB_ENV) {
		2569	$DB_ENV = BDB::db_env_create;
		2570
		2571	cf::sync_job {
		2572	eval {
		2573	BDB::db_env_open
		2574	$DB_ENV,
		2575	$BDB_ENV_DIR,
		2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2578	0666;
		2579
		2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
		2581
		2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2583	$DB_ENV->set_lk_detect;
		2584	};
		2585
		2586	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	2587	};
2030	},	2588	}
2031	);	2589	}
		2590
		2591	{
		2592	IO::AIO::min_parallel 8;
		2593
		2594	undef $Coro::AIO::WATCHER;
		2595	IO::AIO::max_poll_time $TICK * 0.1;
		2596	$AIO_POLL_WATCHER = Event->io (
		2597	reentrant => 0,
		2598	data => WF_AUTOCANCEL,
		2599	fd => IO::AIO::poll_fileno,
		2600	poll => 'r',
		2601	prio => 6,
		2602	cb => \&IO::AIO::poll_cb,
		2603	);
		2604	}
		2605
		2606	END { cf::emergency_save }
2032		2607
2033	1	2608	1
2034		2609

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines