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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.162 by root, Thu Jan 11 00:41:08 2007 UTC vs.
Revision 1.286 by root, Sun Jun 24 04:27:20 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	76	our $NEXT_TICK;
50	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
51		82
52	our %CFG;	83	our %CFG;
53		84
54	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	86	our $RUNTIME;
56		87
57	our %PLAYER; # all users	88	our %PLAYER; # all users
58	our %MAP; # all maps	89	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		91
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
64		98
65	binmode STDOUT;	99	binmode STDOUT;
66	binmode STDERR;	100	binmode STDERR;
67		101
68	# read virtual server time, if available	102	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
73	}	107	}
74		108
75	mkdir cf::localdir;	109	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		111
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
84		115
85	#############################################################################	116	#############################################################################
86		117
87	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
88		119
…		…
95	=item $cf::RUNTIME	126	=item $cf::RUNTIME
96		127
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	129	every server tick.
99		130
100	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		134
102	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
104		139
105	=item $cf::NOW	140	=item $cf::NOW
106		141
107	The time of the last (current) server tick.	142	The time of the last (current) server tick.
108		143
109	=item $cf::TICK	144	=item $cf::TICK
110		145
111	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
112		157
113	=item %cf::CFG	158	=item %cf::CFG
114		159
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	161	from wherever your confdir points to.
117		162
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		164
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.
124		168
125	=back	169	=back
126		170
127	=cut	171	=cut
128		172
129	BEGIN {	173	BEGIN {
130	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	175	my $msg = join "", @_;
132	utf8::encode $msg;
133		176
134	$msg .= "\n"	177	$msg .= "\n"
135	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
136		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
137	LOG llevError, $msg;	183	LOG llevError, $msg;
138	};	184	};
139	}	185	}
140		186
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		194
148	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	196	# within the Safe compartment.
150	for my $pkg (qw(	197	for my $pkg (qw(
151	cf::global cf::attachable	198	cf::global cf::attachable
…		…
159	}	206	}
160		207
161	$Event::DIED = sub {	208	$Event::DIED = sub {
162	warn "error in event callback: @_";	209	warn "error in event callback: @_";
163	};	210	};
		211
		212	#############################################################################
164		213
165	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
166		215
167	=over 4	216	=over 4
168		217
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	237	$d
189	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
190	}	239	}
191		240
192	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
193		242
194	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
195		244
196	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
197		246
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
206		248
207	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
208
209	=cut
210
211	sub to_json($) {
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
213	JSON::Syck::Dump $_[0]
214	}
215		250
216	=item cf::lock_wait $string	251	=item cf::lock_wait $string
217		252
218	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
219		254
…		…
225	returned.	260	returned.
226		261
227	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
229		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
230	=cut	269	=cut
231		270
232	our %LOCK;	271	our %LOCK;
233		272
234	sub lock_wait($) {	273	sub lock_wait($) {
…		…
253	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
255	}	294	}
256	}	295	}
257		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
258	sub freeze_mainloop {	303	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
260		305
261	my $guard = Coro::guard { $TICK_WATCHER->start };	306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
262	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
263	$guard	310	$guard
264	}	311	}
265		312
266	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
273		320
274	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
275		322
276	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
277		324
278	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
281		329
282	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
285	fast or be very important.	333	fast or be very important.
…		…
288		336
289	sub sync_job(&) {	337	sub sync_job(&) {
290	my ($job) = @_;	338	my ($job) = @_;
291		339
292	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
293	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
295		345
296	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
308		358
309	while ($busy) {	359	while ($busy) {
310	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
311	}	361	}
312		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
313	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
314	} else {	371	} else {
315	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
316		373
317	$job->()	374	$job->()
…		…
336	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
337		394
338	$coro	395	$coro
339	}	396	}
340		397
341	sub write_runtime {	398	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		399
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
345	or return;	401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
346		404
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		406
351	aio_fsync $fh	407	sub fork_call(&@) {
352	and return;	408	my ($cb, @args) = @_;
353		409
		410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
		414
		415	if (my $pid = fork) {
354	close $fh	416	close $fh2;
355	or return;
356		417
357	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
358	and return;	419	$res = Coro::Storable::thaw $res;
359		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
360	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	567	}
362		568
363	=back	569	=back
364		570
365	=cut	571	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522		572
523	#############################################################################	573	#############################################################################
524		574
525	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
526		576
…		…
528	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
530		580
531	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	583	Crossfire TRT).
534		584
535	=over 4	585	=over 4
536		586
537	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
538		588
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	703	our @CB_MAP = ();
654		704
655	my %attachment;	705	my %attachment;
656		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
657	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
659		715
660	use sort 'stable';	716	use sort 'stable';
661		717
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
696		752
697	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		757
702	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	759	my $pkg = shift @arg;
704		760
705	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
735	}	791	}
736		792
737	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
738	} else {	794	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	796	}
741		797
742	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
743	}	799	}
744		800
…		…
746	if (ref $_[0]) {	802	if (ref $_[0]) {
747	_object_attach @_;	803	_object_attach @_;
748	} else {	804	} else {
749	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
750	}	806	}
		807	_recalc_want;
751	};	808	};
752		809
753	# all those should be optimised	810	# all those should be optimised
754	sub cf::attachable::detach {	811	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
759	reattach ($obj);	816	reattach ($obj);
760	} else {	817	} else {
761	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
762	}	819	}
		820	_recalc_want;
763	};	821	};
764		822
765	sub cf::attachable::attached {	823	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
767		825
…		…
832	# object support	890	# object support
833		891
834	sub reattach {	892	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		897
838	my $registry = $obj->registry;	898	my $registry = $obj->registry;
839		899
840	@$registry = ();	900	@$registry = ();
841		901
…		…
888	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
889		949
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	954	close $fh;
895		955
896	if (@$objs) {	956	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	962	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
904	}	964	}
905	} else {	965	} else {
906	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
938	or return;	998	or return;
939	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
940	}	1000	}
941		1001
942	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
944	return ($data, $av);	1004	return ($data, $av);
945	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
946		1012
947	#############################################################################	1013	#############################################################################
948	# command handling &c	1014	# command handling &c
949		1015
950	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1030	}
965		1031
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1033
968	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
969		1035
970	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
971	called.	1037	called.
972		1038
973	=cut	1039	=cut
…		…
1008		1074
1009	cf::override;	1075	cf::override;
1010	},	1076	},
1011	);	1077	);
1012		1078
1013	sub load_extension {
1014	my ($path) = @_;
1015
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1017	my $base = $1;
1018	my $pkg = $1;
1019	$pkg =~ s/[^[:word:]]/_/g;
1020	$pkg = "ext::$pkg";
1021
1022	warn "... loading '$path' into '$pkg'\n";
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}
1039
1040	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
1041	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1084	next unless -r $path;
1043	eval {	1085
1044	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
1045	1	1143	}
1046	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
1047	}	1149	};
1048	}	1150	}
1049		1151
1050	#############################################################################	1152	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1153
1053	*cf::mapsupport::on_clean = sub {	1154	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1155
1066	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
1067		1157
1068	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
1069		1159
…		…
1082	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
1083		1173
1084	=cut	1174	=cut
1085		1175
1086	sub playerdir($) {	1176	sub playerdir($) {
1087	cf::localdir	1177	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1179	}
1093		1180
1094	sub path($) {	1181	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1183
1097	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
1098	}	1185	}
1099		1186
1100	sub find_active($) {	1187	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
1105		1192
1106	sub exists($) {	1193	sub exists($) {
1107	my ($login) = @_;	1194	my ($login) = @_;
1108		1195
1109	$cf::PLAYER{$login}	1196	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1197	or cf::sync_job { !aio_stat path $login }
1111	}	1198	}
1112		1199
1113	sub find($) {	1200	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1201	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1202	my $login = $_[0];
1116		1203
1117	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
1118		1205
1119	$cf::PLAYER{$_[0]} || do {	1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
1120	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
1121	or return;	1215	or return;
1122	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
1123	}	1217	}
1124	}	1218	}
…		…
1161		1255
1162	=cut	1256	=cut
1163		1257
1164	sub quit_character {	1258	sub quit_character {
1165	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1166		1262
1167	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1265
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
1180	IO::AIO::aio_rmtree $temp;	1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
1181	}	1297	}
1182		1298
1183	=item cf::player::list_logins	1299	=item cf::player::list_logins
1184		1300
1185	Returns am arrayref of all valid playernames in the system, can take a	1301	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1187		1303
1188	=cut	1304	=cut
1189		1305
1190	sub list_logins {	1306	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1308	or return [];
1193		1309
1194	my @logins;	1310	my @logins;
1195		1311
1196	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1205	\@logins	1321	\@logins
1206	}	1322	}
1207		1323
1208	=item $player->maps	1324	=item $player->maps
1209		1325
1210	Returns an arrayref of cf::path's of all maps that are private for this	1326	Returns an arrayref of map paths that are private for this
1211	player. May block.	1327	player. May block.
1212		1328
1213	=cut	1329	=cut
1214		1330
1215	sub maps($) {	1331	sub maps($) {
1216	my ($pl) = @_;	1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1335
1218	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1219	or return;	1337	or return;
1220		1338
1221	my @paths;	1339	my @paths;
…		…
1223	for (@$files) {	1341	for (@$files) {
1224	utf8::decode $_;	1342	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1227		1345
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1346	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1347	}
1230		1348
1231	\@paths	1349	\@paths
1232	}	1350	}
1233		1351
		1352	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1353
		1354	Expand crossfire pod fragments into protocol xml.
		1355
		1356	=cut
		1357
		1358	sub expand_cfpod {
		1359	((my $self), (local $_)) = @_;
		1360
		1361	# escape & and <
		1362	s/&/&amp;/g;
		1363	s/(?<![BIUGH])</&lt;/g;
		1364
		1365	# this is buggy, it needs to properly take care of nested <'s
		1366
		1367	1 while
		1368	# replace B<>, I<>, U<> etc.
		1369	s/B<([^\>]*)>/<b>$1<\/b>/
		1370	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1371	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1372	# replace G<male|female> tags
		1373	|| s{G<([^>|]*)\|([^>]*)>}{
		1374	$self->gender ? $2 : $1
		1375	}ge
		1376	# replace H<hint text>
		1377	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1378
		1379	# create single paragraphs (very hackish)
		1380	s/(?<=\S)\n(?=\w)/ /g;
		1381
		1382	$_
		1383	}
		1384
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1385	=item $player->ext_reply ($msgid, %msg)
1235		1386
1236	Sends an ext reply to the player.	1387	Sends an ext reply to the player.
1237		1388
1238	=cut	1389	=cut
1239		1390
1240	sub ext_reply($$$%) {	1391	sub ext_reply($$%) {
1241	my ($self, $id, %msg) = @_;	1392	my ($self, $id, %msg) = @_;
1242		1393
1243	$msg{msgid} = $id;	1394	$msg{msgid} = $id;
1244		1395
1245	$self->send ("ext " . cf::to_json \%msg);	1396	$self->send ("ext " . cf::to_json \%msg);
1246	}	1397	}
1247		1398
1248	package cf;	1399	=item $player->ext_event ($type, %msg)
		1400
		1401	Sends an ext event to the client.
		1402
		1403	=cut
		1404
		1405	sub ext_event($$%) {
		1406	my ($self, $type, %msg) = @_;
		1407
		1408	$self->ns->ext_event ($type, %msg);
		1409	}
		1410
		1411	=head3 cf::region
		1412
		1413	=over 4
		1414
		1415	=cut
		1416
		1417	package cf::region;
		1418
		1419	=item cf::region::find_by_path $path
		1420
		1421	Tries to decuce the likely region for a map knowing only its path.
		1422
		1423	=cut
		1424
		1425	sub find_by_path($) {
		1426	my ($path) = @_;
		1427
		1428	my ($match, $specificity);
		1429
		1430	for my $region (list) {
		1431	if ($region->match && $path =~ $region->match) {
		1432	($match, $specificity) = ($region, $region->specificity)
		1433	if $region->specificity > $specificity;
		1434	}
		1435	}
		1436
		1437	$match
		1438	}
1249		1439
1250	=back	1440	=back
1251
1252		1441
1253	=head3 cf::map	1442	=head3 cf::map
1254		1443
1255	=over 4	1444	=over 4
1256		1445
…		…
1259	package cf::map;	1448	package cf::map;
1260		1449
1261	use Fcntl;	1450	use Fcntl;
1262	use Coro::AIO;	1451	use Coro::AIO;
1263		1452
		1453	use overload
		1454	'""' => \&as_string,
		1455	fallback => 1;
		1456
1264	our $MAX_RESET = 3600;	1457	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1458	our $DEFAULT_RESET = 3000;
1266		1459
1267	sub generate_random_map {	1460	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1461	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1462	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1463	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1464	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1465	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1466	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1467	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1468	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1473	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1474	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1475	)
1285	}	1476	}
1286		1477
		1478	=item cf::map->register ($regex, $prio)
		1479
		1480	Register a handler for the map path matching the given regex at the
		1481	givne priority (higher is better, built-in handlers have priority 0, the
		1482	default).
		1483
		1484	=cut
		1485
		1486	sub register {
		1487	my (undef, $regex, $prio) = @_;
		1488	my $pkg = caller;
		1489
		1490	no strict;
		1491	push @{"$pkg\::ISA"}, __PACKAGE__;
		1492
		1493	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1494	}
		1495
		1496	# also paths starting with '/'
		1497	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1498
		1499	sub thawer_merge {
		1500	my ($self, $merge) = @_;
		1501
		1502	# we have to keep some variables in memory intact
		1503	local $self->{path};
		1504	local $self->{load_path};
		1505
		1506	$self->SUPER::thawer_merge ($merge);
		1507	}
		1508
		1509	sub normalise {
		1510	my ($path, $base) = @_;
		1511
		1512	$path = "$path"; # make sure its a string
		1513
		1514	$path =~ s/\.map$//;
		1515
		1516	# map plan:
		1517	#
		1518	# /! non-realised random map exit (special hack!)
		1519	# {... are special paths that are not being touched
		1520	# ?xxx/... are special absolute paths
		1521	# ?random/... random maps
		1522	# /... normal maps
		1523	# ~user/... per-player map of a specific user
		1524
		1525	$path =~ s/$PATH_SEP/\//go;
		1526
		1527	# treat it as relative path if it starts with
		1528	# something that looks reasonable
		1529	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1530	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1531
		1532	$base =~ s{[^/]+/?$}{};
		1533	$path = "$base/$path";
		1534	}
		1535
		1536	for ($path) {
		1537	redo if s{//}{/};
		1538	redo if s{/\.?/}{/};
		1539	redo if s{/[^/]+/\.\./}{/};
		1540	}
		1541
		1542	$path
		1543	}
		1544
		1545	sub new_from_path {
		1546	my (undef, $path, $base) = @_;
		1547
		1548	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1549
		1550	$path = normalise $path, $base;
		1551
		1552	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1553	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1554	my $self = bless cf::map::new, $pkg;
		1555	$self->{path} = $path; $self->path ($path);
		1556	$self->init; # pass $1 etc.
		1557	return $self;
		1558	}
		1559	}
		1560
		1561	Carp::carp "unable to resolve path '$path' (base '$base').";
		1562	()
		1563	}
		1564
		1565	sub init {
		1566	my ($self) = @_;
		1567
		1568	$self
		1569	}
		1570
		1571	sub as_string {
		1572	my ($self) = @_;
		1573
		1574	"$self->{path}"
		1575	}
		1576
		1577	# the displayed name, this is a one way mapping
		1578	sub visible_name {
		1579	&as_string
		1580	}
		1581
		1582	# the original (read-only) location
		1583	sub load_path {
		1584	my ($self) = @_;
		1585
		1586	"$MAPDIR/$self->{path}.map"
		1587	}
		1588
		1589	# the temporary/swap location
		1590	sub save_path {
		1591	my ($self) = @_;
		1592
		1593	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1594	"$TMPDIR/$path.map"
		1595	}
		1596
		1597	# the unique path, undef == no special unique path
		1598	sub uniq_path {
		1599	my ($self) = @_;
		1600
		1601	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1602	"$UNIQUEDIR/$path"
		1603	}
		1604
1287	# and all this just because we cannot iterate over	1605	# and all this just because we cannot iterate over
1288	# all maps in C++...	1606	# all maps in C++...
1289	sub change_all_map_light {	1607	sub change_all_map_light {
1290	my ($change) = @_;	1608	my ($change) = @_;
1291		1609
1292	$_->change_map_light ($change)	1610	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1611	for grep $_->outdoor, values %cf::MAP;
1294	}	1612	}
1295		1613
		1614	sub decay_objects {
		1615	my ($self) = @_;
		1616
		1617	return if $self->{deny_reset};
		1618
		1619	$self->do_decay_objects;
		1620	}
		1621
		1622	sub unlink_save {
		1623	my ($self) = @_;
		1624
		1625	utf8::encode (my $save = $self->save_path);
		1626	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1627	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1628	}
		1629
1296	sub load_map_header($) {	1630	sub load_header_from($) {
1297	my ($path) = @_;	1631	my ($self, $path) = @_;
1298		1632
1299	utf8::encode $path;	1633	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1634	#aio_open $path, O_RDONLY, 0
		1635	# or return;
		1636
		1637	$self->_load_header ($path)
1301	or return;	1638	or return;
1302		1639
1303	my $map = cf::map::new	1640	$self->{load_path} = $path;
		1641
		1642	1
		1643	}
		1644
		1645	sub load_header_orig {
		1646	my ($self) = @_;
		1647
		1648	$self->load_header_from ($self->load_path)
		1649	}
		1650
		1651	sub load_header_temp {
		1652	my ($self) = @_;
		1653
		1654	$self->load_header_from ($self->save_path)
		1655	}
		1656
		1657	sub prepare_temp {
		1658	my ($self) = @_;
		1659
		1660	$self->last_access ((delete $self->{last_access})
		1661	|| $cf::RUNTIME); #d#
		1662	# safety
		1663	$self->{instantiate_time} = $cf::RUNTIME
		1664	if $self->{instantiate_time} > $cf::RUNTIME;
		1665	}
		1666
		1667	sub prepare_orig {
		1668	my ($self) = @_;
		1669
		1670	$self->{load_original} = 1;
		1671	$self->{instantiate_time} = $cf::RUNTIME;
		1672	$self->last_access ($cf::RUNTIME);
		1673	$self->instantiate;
		1674	}
		1675
		1676	sub load_header {
		1677	my ($self) = @_;
		1678
		1679	if ($self->load_header_temp) {
		1680	$self->prepare_temp;
		1681	} else {
		1682	$self->load_header_orig
1304	or return;	1683	or return;
		1684	$self->prepare_orig;
		1685	}
1305		1686
1306	# for better error messages only, will be overwritten later	1687	$self->{deny_reset} = 1
1307	$map->path ($path);	1688	if $self->no_reset;
1308		1689
1309	$map->load_header ($path)	1690	$self->default_region (cf::region::find_by_path $self->{path})
1310	or return;	1691	unless $self->default_region;
1311		1692
1312	$map->{load_path} = $path;	1693	1
1313
1314	$map
1315	}	1694	}
1316		1695
1317	sub find;	1696	sub find;
1318	sub find {	1697	sub find {
1319	my ($path, $origin) = @_;	1698	my ($path, $origin) = @_;
1320		1699
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1700	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1701
1326	cf::lock_wait "map_find:$key";	1702	cf::lock_wait "map_find:$path";
1327		1703
1328	$cf::MAP{$key} || do {	1704	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1705	my $guard = cf::lock_acquire "map_find:$path";
1330		1706	my $map = new_from_path cf::map $path
1331	# do it the slow way
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	1707	or return;
1345		1708
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	1709	$map->{last_save} = $cf::RUNTIME;
1358		1710
1359	Coro::cede;	1711	$map->load_header
		1712	or return;
1360		1713
1361	if ($map->should_reset) {	1714	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1715	# doing this can freeze the server in a sync job, obviously
		1716	#$cf::WAIT_FOR_TICK->wait;
1362	$map->reset;	1717	$map->reset;
1363	undef $guard;	1718	undef $guard;
1364	$map = find $path	1719	return find $path;
1365	or return;
1366	}	1720	}
1367		1721
1368	$cf::MAP{$key} = $map	1722	$cf::MAP{$path} = $map
1369	}	1723	}
1370	}	1724	}
		1725
		1726	sub pre_load { }
		1727	sub post_load { }
1371		1728
1372	sub load {	1729	sub load {
1373	my ($self) = @_;	1730	my ($self) = @_;
1374		1731
		1732	local $self->{deny_reset} = 1; # loading can take a long time
		1733
1375	my $path = $self->{path};	1734	my $path = $self->{path};
		1735
		1736	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1737	my $guard = cf::lock_acquire "map_load:$path";
1377		1738
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1739	return if $self->in_memory != cf::MAP_SWAPPED;
1379		1740
1380	$self->in_memory (cf::MAP_LOADING);	1741	$self->in_memory (cf::MAP_LOADING);
1381		1742
1382	$self->alloc;	1743	$self->alloc;
		1744
		1745	$self->pre_load;
		1746	Coro::cede;
		1747
1383	$self->load_objects ($self->{load_path}, 1)	1748	$self->_load_objects ($self->{load_path}, 1)
1384	or return;	1749	or return;
1385		1750
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1751	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1752	if delete $self->{load_original};
1388		1753
1389	if (my $uniq = $path->uniq_path) {	1754	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1755	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1756	if (aio_open $uniq, O_RDONLY, 0) {
1392	$self->clear_unique_items;	1757	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1758	$self->_load_objects ($uniq, 0);
1394	}	1759	}
1395	}	1760	}
1396		1761
1397	Coro::cede;	1762	Coro::cede;
1398
1399	# now do the right thing for maps	1763	# now do the right thing for maps
1400	$self->link_multipart_objects;	1764	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	1765	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	1766	unless $self->difficulty;
		1767	Coro::cede;
		1768
		1769	unless ($self->{deny_activate}) {
		1770	$self->decay_objects;
		1771	$self->fix_auto_apply;
		1772	$self->update_buttons;
		1773	Coro::cede;
		1774	$self->set_darkness_map;
		1775	Coro::cede;
1412	$self->activate;	1776	$self->activate;
1413	}	1777	}
1414		1778
1415	Coro::cede;
1416
1417	$self->in_memory (cf::MAP_IN_MEMORY);	1779	$self->in_memory (cf::MAP_IN_MEMORY);
		1780	}
		1781
		1782	$self->post_load;
		1783	}
		1784
		1785	sub customise_for {
		1786	my ($self, $ob) = @_;
		1787
		1788	return find "~" . $ob->name . "/" . $self->{path}
		1789	if $self->per_player;
		1790
		1791	# return find "?party/" . $ob->name . "/" . $self->{path}
		1792	# if $self->per_party;
		1793
		1794	$self
1418	}	1795	}
1419		1796
1420	# find and load all maps in the 3x3 area around a map	1797	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1798	sub load_diag {
1422	my ($map) = @_;	1799	my ($map) = @_;
…		…
1452		1829
1453	cf::sync_job { $map->load };	1830	cf::sync_job { $map->load };
1454	}	1831	}
1455		1832
1456	our %MAP_PREFETCH;	1833	our %MAP_PREFETCH;
1457	our $MAP_PREFETCHER = Coro::async {	1834	our $MAP_PREFETCHER = undef;
1458	while () {
1459	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH
1461	or next;
1462	my $path = delete $MAP_PREFETCH{$key};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}
1468	Coro::schedule;
1469	}
1470	};
1471		1835
1472	sub find_async {	1836	sub find_async {
1473	my ($path, $origin) = @_;	1837	my ($path, $origin) = @_;
1474		1838
1475	$path = new cf::path $path, $origin && $origin->path;	1839	$path = normalise $path, $origin && $origin->{path};
1476	my $key = $path->as_string;
1477		1840
1478	if (my $map = $cf::MAP{$key}) {	1841	if (my $map = $cf::MAP{$path}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1842	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}	1843	}
1481		1844
1482	$MAP_PREFETCH{$key} = $path;	1845	undef $MAP_PREFETCH{$path};
		1846	$MAP_PREFETCHER ||= cf::async {
		1847	while (%MAP_PREFETCH) {
		1848	for my $path (keys %MAP_PREFETCH) {
		1849	my $map = find $path
		1850	or next;
		1851	$map->load;
		1852
		1853	delete $MAP_PREFETCH{$path};
		1854	}
		1855	}
		1856	undef $MAP_PREFETCHER;
		1857	};
1483	$MAP_PREFETCHER->ready;	1858	$MAP_PREFETCHER->prio (6);
1484		1859
1485	()	1860	()
1486	}	1861	}
1487		1862
1488	sub save {	1863	sub save {
…		…
1492		1867
1493	$self->{last_save} = $cf::RUNTIME;	1868	$self->{last_save} = $cf::RUNTIME;
1494		1869
1495	return unless $self->dirty;	1870	return unless $self->dirty;
1496		1871
1497	my $save = $self->{path}->save_path; utf8::encode $save;	1872	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1873	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		1874
1500	$self->{load_path} = $save;	1875	$self->{load_path} = $save;
1501		1876
1502	return if $self->{deny_save};	1877	return if $self->{deny_save};
1503		1878
…		…
1506	cf::async {	1881	cf::async {
1507	$_->contr->save for $self->players;	1882	$_->contr->save for $self->players;
1508	};	1883	};
1509		1884
1510	if ($uniq) {	1885	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1886	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	1887	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	1888	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1889	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	1890	}
1516	}	1891	}
1517		1892
1518	sub swap_out {	1893	sub swap_out {
1519	my ($self) = @_;	1894	my ($self) = @_;
…		…
1533		1908
1534	sub reset_at {	1909	sub reset_at {
1535	my ($self) = @_;	1910	my ($self) = @_;
1536		1911
1537	# TODO: safety, remove and allow resettable per-player maps	1912	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	1913	return 1e99 if $self->{deny_reset};
1540		1914
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1915	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1916	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		1917
…		…
1548	my ($self) = @_;	1922	my ($self) = @_;
1549		1923
1550	$self->reset_at <= $cf::RUNTIME	1924	$self->reset_at <= $cf::RUNTIME
1551	}	1925	}
1552		1926
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	1927	sub reset {
1575	my ($self) = @_;	1928	my ($self) = @_;
1576		1929
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	1930	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		1931
1579	return if $self->players;	1932	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		1933
1582	warn "resetting map ", $self->path;#d#	1934	warn "resetting map ", $self->path;
		1935
		1936	$self->in_memory (cf::MAP_SWAPPED);
		1937
		1938	# need to save uniques path
		1939	unless ($self->{deny_save}) {
		1940	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1941
		1942	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1943	if $uniq;
		1944	}
1583		1945
1584	delete $cf::MAP{$self->path};	1946	delete $cf::MAP{$self->path};
		1947
		1948	$self->clear;
1585		1949
1586	$_->clear_links_to ($self) for values %cf::MAP;	1950	$_->clear_links_to ($self) for values %cf::MAP;
1587		1951
1588	$self->unlink_save;	1952	$self->unlink_save;
1589	$self->destroy;	1953	$self->destroy;
…		…
1592	my $nuke_counter = "aaaa";	1956	my $nuke_counter = "aaaa";
1593		1957
1594	sub nuke {	1958	sub nuke {
1595	my ($self) = @_;	1959	my ($self) = @_;
1596		1960
		1961	delete $cf::MAP{$self->path};
		1962
		1963	$self->unlink_save;
		1964
		1965	bless $self, "cf::map";
		1966	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	1967	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	1968	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	1969	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1970
		1971	$cf::MAP{$self->path} = $self;
		1972
1600	$self->reset; # polite request, might not happen	1973	$self->reset; # polite request, might not happen
1601	}	1974	}
1602		1975
1603	sub customise_for {	1976	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		1977
1606	if ($map->per_player) {	1978	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1979	maps. May block.
		1980
		1981	=cut
		1982
		1983	sub tmp_maps() {
1608	}	1984	[
		1985	map {
		1986	utf8::decode $_;
		1987	/\.map$/
		1988	? normalise $_
		1989	: ()
		1990	} @{ aio_readdir $TMPDIR or [] }
		1991	]
		1992	}
1609		1993
1610	$map	1994	=item $maps = cf::map::random_maps
		1995
		1996	Returns an arrayref with all map paths of currently instantiated and saved
		1997	random maps. May block.
		1998
		1999	=cut
		2000
		2001	sub random_maps() {
		2002	[
		2003	map {
		2004	utf8::decode $_;
		2005	/\.map$/
		2006	? normalise "?random/$_"
		2007	: ()
		2008	} @{ aio_readdir $RANDOMDIR or [] }
		2009	]
1611	}	2010	}
1612		2011
1613	=item cf::map::unique_maps	2012	=item cf::map::unique_maps
1614		2013
1615	Returns an arrayref of cf::path's of all shared maps that have	2014	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2015	instantiated unique items. May block.
1617		2016
1618	=cut	2017	=cut
1619		2018
1620	sub unique_maps() {	2019	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2020	[
1622	or return;	2021	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2022	utf8::decode $_;
1628	next if /\.pst$/;	2023	/\.map$/
1629	next unless /^$PATH_SEP/o;	2024	? normalise $_
1630		2025	: ()
1631	push @paths, new cf::path $_;	2026	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2027	]
1633
1634	\@paths
1635	}	2028	}
1636		2029
1637	package cf;	2030	package cf;
1638		2031
1639	=back	2032	=back
…		…
1685		2078
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2079	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2080
1688	if ($self->{record_replies}) {	2081	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2082	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2083
1690	} else {	2084	} else {
		2085	my $pl = $self->contr;
		2086
		2087	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2088	my $diag = $pl->{npc_dialog};
		2089	$diag->{pl}->ext_reply (
		2090	$diag->{id},
		2091	msgtype => "reply",
		2092	msg => $diag->{pl}->expand_cfpod ($msg),
		2093	add_topics => []
		2094	);
		2095
		2096	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2097	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2098	$self->message ($msg, $flags);
		2099	}
1693	}	2100	}
1694	}	2101	}
1695		2102
1696	=item $player_object->may ("access")	2103	=item $player_object->may ("access")
1697		2104
…		…
1711		2118
1712	=item $player_object->enter_link	2119	=item $player_object->enter_link
1713		2120
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2121	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2122
1716	The player should be reaosnably safe there for short amounts of time. You	2123	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2124	I<MUST> call C<leave_link> as soon as possible, though.
1718		2125
		2126	Will never block.
		2127
1719	=item $player_object->leave_link ($map, $x, $y)	2128	=item $player_object->leave_link ($map, $x, $y)
1720		2129
1721	Moves the player out of the specila link map onto the given map. If the	2130	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2131	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2132	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2133	fails, to the emergency map position.
1725		2134
1726	Might block.	2135	Might block.
1727		2136
1728	=cut	2137	=cut
		2138
		2139	sub link_map {
		2140	unless ($LINK_MAP) {
		2141	$LINK_MAP = cf::map::find "{link}"
		2142	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2143	$LINK_MAP->load;
		2144	}
		2145
		2146	$LINK_MAP
		2147	}
1729		2148
1730	sub cf::object::player::enter_link {	2149	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2150	my ($self) = @_;
1732		2151
1733	$self->deactivate_recursive;	2152	$self->deactivate_recursive;
1734		2153
1735	return if $self->map == $LINK_MAP;	2154	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2155
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2156	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2157	if $self->map && $self->map->{path} ne "{link}";
1739		2158
1740	$self->enter_map ($LINK_MAP, 20, 20);	2159	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2160	}
1742		2161
1743	sub cf::object::player::leave_link {	2162	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2163	my ($self, $map, $x, $y) = @_;
		2164
		2165	return unless $self->contr->active;
1745		2166
1746	my $link_pos = delete $self->{_link_pos};	2167	my $link_pos = delete $self->{_link_pos};
1747		2168
1748	unless ($map) {	2169	unless ($map) {
1749	# restore original map position	2170	# restore original map position
…		…
1767	$map->load;	2188	$map->load;
1768	$map->load_diag;	2189	$map->load_diag;
1769		2190
1770	return unless $self->contr->active;	2191	return unless $self->contr->active;
1771	$self->activate_recursive;	2192	$self->activate_recursive;
		2193
		2194	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2195	$self->enter_map ($map, $x, $y);
1773	}	2196	}
1774		2197
1775	cf::player->attach (
1776	on_logout => sub {
1777	my ($pl) = @_;
1778
1779	# abort map switching before logout
1780	if ($pl->ob->{_link_pos}) {
1781	cf::sync_job {
1782	$pl->ob->leave_link
1783	};
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)	2198	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1808		2199
		2200	Moves the player to the given map-path and coordinates by first freezing
		2201	her, loading and preparing them map, calling the provided $check callback
		2202	that has to return the map if sucecssful, and then unfreezes the player on
		2203	the new (success) or old (failed) map position.
		2204
1809	=cut	2205	=cut
		2206
		2207	our $GOTOGEN;
1810		2208
1811	sub cf::object::player::goto {	2209	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2210	my ($self, $path, $x, $y, $check) = @_;
1813		2211
1814	$path = new cf::path $path;	2212	# do generation counting so two concurrent goto's will be executed in-order
		2213	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2214
1816	$self->enter_link;	2215	$self->enter_link;
1817		2216
1818	(async {	2217	(async {
		2218	my $map = eval {
1819	my $map = cf::map::find $path->as_string;	2219	my $map = cf::map::find $path;
		2220
		2221	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2222	$map = $map->customise_for ($self);
1821		2223	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2224	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2225	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2226	}
1826		2227
		2228	$map
		2229	};
		2230
		2231	if ($@) {
		2232	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2233	LOG llevError | logBacktrace, Carp::longmess $@;
		2234	}
		2235
		2236	if ($gen == $self->{_goto_generation}) {
		2237	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2238	$self->leave_link ($map, $x, $y);
		2239	}
1828	})->prio (1);	2240	})->prio (1);
1829	}	2241	}
1830		2242
1831	=item $player_object->enter_exit ($exit_object)	2243	=item $player_object->enter_exit ($exit_object)
1832		2244
…		…
1834		2246
1835	sub parse_random_map_params {	2247	sub parse_random_map_params {
1836	my ($spec) = @_;	2248	my ($spec) = @_;
1837		2249
1838	my $rmp = { # defaults	2250	my $rmp = { # defaults
1839	xsize => 10,	2251	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2252	ysize => (cf::rndm 15, 40),
		2253	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2254	#layout => string,
1841	};	2255	};
1842		2256
1843	for (split /\n/, $spec) {	2257	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2258	my ($k, $v) = split /\s+/, $_, 2;
1845		2259
…		…
1849	$rmp	2263	$rmp
1850	}	2264	}
1851		2265
1852	sub prepare_random_map {	2266	sub prepare_random_map {
1853	my ($exit) = @_;	2267	my ($exit) = @_;
		2268
		2269	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2270
1855	# all this does is basically replace the /! path by	2271	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2272	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2273	# that depends on the exit object
1858		2274
1859	my $rmp = parse_random_map_params $exit->msg;	2275	my $rmp = parse_random_map_params $exit->msg;
1860		2276
1861	if ($exit->map) {	2277	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2278	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2279	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2280	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2281	$rmp->{origin_y} = $exit->y;
1866	}	2282	}
1867		2283
1868	$rmp->{random_seed} ||= $exit->random_seed;	2284	$rmp->{random_seed} ||= $exit->random_seed;
1869		2285
1870	my $data = cf::to_json $rmp;	2286	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2287	my $md5 = Digest::MD5::md5_hex $data;
		2288	my $meta = "$RANDOMDIR/$md5.meta";
1872		2289
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2290	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2291	aio_write $fh, 0, (length $data), $data, 0;
		2292	undef $fh;
		2293	aio_rename "$meta~", $meta;
1875		2294
1876	$exit->slaying ("?random/$md5");	2295	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2296	$exit->msg (undef);
1878	}	2297	}
1879	}	2298	}
1880		2299
1881	sub cf::object::player::enter_exit {	2300	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2301	my ($self, $exit) = @_;
1883		2302
1884	return unless $self->type == cf::PLAYER;	2303	return unless $self->type == cf::PLAYER;
		2304
		2305	if ($exit->slaying eq "/!") {
		2306	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2307	# the problem is that $exit might not survive long enough
		2308	# so it needs to be done right now, right here
		2309	cf::sync_job { prepare_random_map $exit };
		2310	}
		2311
		2312	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2313	my $hp = $exit->stats->hp;
		2314	my $sp = $exit->stats->sp;
1885		2315
1886	$self->enter_link;	2316	$self->enter_link;
1887		2317
1888	(async {	2318	(async {
1889	$self->deactivate_recursive; # just to be sure	2319	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2320	unless (eval {
1891	prepare_random_map $exit	2321	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2322
1897	1;	2323	1;
1898	}) {	2324	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2325	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2326	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2327	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2328	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2329
1904	warn "ERROR in enter_exit: $@";	2330	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2331	$self->leave_link;
1906	}	2332	}
1907	})->prio (1);	2333	})->prio (1);
…		…
1920		2346
1921	sub cf::client::send_drawinfo {	2347	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2348	my ($self, $text, $flags) = @_;
1923		2349
1924	utf8::encode $text;	2350	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2351	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2352	}
1927		2353
		2354	=item $client->send_msg ($color, $type, $msg, [extra...])
		2355
		2356	Send a drawinfo or msg packet to the client, formatting the msg for the
		2357	client if neccessary. C<$type> should be a string identifying the type of
		2358	the message, with C<log> being the default. If C<$color> is negative, suppress
		2359	the message unless the client supports the msg packet.
		2360
		2361	=cut
		2362
		2363	sub cf::client::send_msg {
		2364	my ($self, $color, $type, $msg, @extra) = @_;
		2365
		2366	$msg = $self->pl->expand_cfpod ($msg);
		2367
		2368	if ($self->can_msg) {
		2369	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2370	} else {
		2371	# replace some tags by gcfclient-compatible ones
		2372	for ($msg) {
		2373	1 while
		2374	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2375	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2376	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2377	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2378	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2379	}
		2380
		2381	if ($color >= 0) {
		2382	if (0 && $msg =~ /\[/) {
		2383	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2384	} else {
		2385	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2386	$self->send_packet ("drawinfo $color $msg")
		2387	}
		2388	}
		2389	}
		2390	}
		2391
		2392	=item $client->ext_event ($type, %msg)
		2393
		2394	Sends an exti event to the client.
		2395
		2396	=cut
		2397
		2398	sub cf::client::ext_event($$%) {
		2399	my ($self, $type, %msg) = @_;
		2400
		2401	$msg{msgtype} = "event_$type";
		2402	$self->send_packet ("ext " . cf::to_json \%msg);
		2403	}
1928		2404
1929	=item $success = $client->query ($flags, "text", \&cb)	2405	=item $success = $client->query ($flags, "text", \&cb)
1930		2406
1931	Queues a query to the client, calling the given callback with	2407	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2408	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1961	# get handled first	2437	# get handled first
1962	my $queue = delete $ns->{query_queue}	2438	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2439	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2440
1965	(shift @$queue)->[1]->($msg);	2441	(shift @$queue)->[1]->($msg);
		2442	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2443
1967	push @{ $ns->{query_queue} }, @$queue;	2444	push @{ $ns->{query_queue} }, @$queue;
1968		2445
1969	if (@{ $ns->{query_queue} } == @$queue) {	2446	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2447	if (@$queue) {
…		…
2028		2505
2029	# here we export the classes and methods available to script code	2506	# here we export the classes and methods available to script code
2030		2507
2031	=pod	2508	=pod
2032		2509
2033	The following fucntions and emthods are available within a safe environment:	2510	The following functions and methods are available within a safe environment:
2034		2511
2035	cf::object contr pay_amount pay_player map	2512	cf::object contr pay_amount pay_player map
2036	cf::object::player player	2513	cf::object::player player
2037	cf::player peaceful	2514	cf::player peaceful
2038	cf::map trigger	2515	cf::map trigger
…		…
2119	=back	2596	=back
2120		2597
2121	=cut	2598	=cut
2122		2599
2123	#############################################################################	2600	#############################################################################
		2601	# the server's init and main functions
2124		2602
2125	=head2 EXTENSION DATABASE SUPPORT	2603	sub load_facedata($) {
		2604	my ($path) = @_;
2126		2605
2127	Crossfire maintains a very simple database for extension use. It can	2606	warn "loading facedata from $path\n";
2128	currently store anything that can be serialised using Storable, which
2129	excludes objects.
2130		2607
2131	The parameter C<$family> should best start with the name of the extension	2608	my $facedata;
2132	using it, it should be unique.	2609	0 < aio_load $path, $facedata
		2610	or die "$path: $!";
2133		2611
2134	=over 4	2612	$facedata = Coro::Storable::thaw $facedata;
2135		2613
2136	=item $hashref = cf::db_get $family	2614	$facedata->{version} == 2
		2615	or cf::cleanup "$path: version mismatch, cannot proceed.";
2137		2616
2138	Return a hashref for use by the extension C<$family>, which can be
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141
2142	=item $value = cf::db_get $family => $key
2143
2144	Returns a single value from the database
2145
2146	=item cf::db_put $family => $hashref
2147
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}	2617	{
		2618	my $faces = $facedata->{faceinfo};
2174		2619
2175	my $pid;	2620	while (my ($face, $info) = each %$faces) {
2176		2621	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2177	sub db_save() {	2622	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2178	waitpid $pid, 0 if $pid;	2623	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2179	if (0 == ($pid = fork)) {	2624	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2180	$DB->{_meta}{version} = 1;	2625	Coro::cede;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});
2197
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}
2202
2203	sub db_get($;$) {
2204	@_ >= 2
2205	? $DB->{$_[0]}{$_[1]}
2206	: ($DB->{$_[0]} ||= { })
2207	}
2208
2209	sub db_put($$;$) {
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217
2218	cf::global->attach (
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	2626	}
2223	);
2224	}
2225		2627
2226	#############################################################################	2628	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	2629	next unless $info->{smooth};
		2630	my $idx = cf::face::find $face
		2631	or next;
		2632	if (my $smooth = cf::face::find $info->{smooth}) {
		2633	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2634	} else {
		2635	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2636	}
		2637	Coro::cede;
		2638	}
		2639	}
		2640
		2641	{
		2642	my $anims = $facedata->{animinfo};
		2643
		2644	while (my ($anim, $info) = each %$anims) {
		2645	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2646	Coro::cede;
		2647	}
		2648
		2649	cf::anim::invalidate_all; # d'oh
		2650	}
		2651
		2652	1
		2653	}
		2654
		2655	sub reload_regions {
		2656	load_resource_file "$MAPDIR/regions"
		2657	or die "unable to load regions file\n";
		2658	}
		2659
		2660	sub reload_facedata {
		2661	load_facedata "$DATADIR/facedata"
		2662	or die "unable to load facedata\n";
		2663	}
		2664
		2665	sub reload_archetypes {
		2666	load_resource_file "$DATADIR/archetypes"
		2667	or die "unable to load archetypes\n";
		2668	}
		2669
		2670	sub reload_treasures {
		2671	load_resource_file "$DATADIR/treasures"
		2672	or die "unable to load treasurelists\n";
		2673	}
		2674
		2675	sub reload_resources {
		2676	warn "reloading resource files...\n";
		2677
		2678	reload_regions;
		2679	reload_facedata;
		2680	#reload_archetypes;#d#
		2681	reload_archetypes;
		2682	reload_treasures;
		2683
		2684	warn "finished reloading resource files\n";
		2685	}
		2686
		2687	sub init {
		2688	reload_resources;
		2689	}
2228		2690
2229	sub cfg_load {	2691	sub cfg_load {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	2692	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	2693	or return;
2232		2694
2233	local $/;	2695	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	2696	*CFG = YAML::Syck::Load <$fh>;
2235		2697
…		…
2249		2711
2250	sub main {	2712	sub main {
2251	# we must not ever block the main coroutine	2713	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	2714	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2715	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2716	(async {
2254	async { Event::one_event };	2717	Event::one_event;
		2718	})->prio (Coro::PRIO_MAX);
2255	};	2719	};
2256		2720
2257	cfg_load;	2721	cfg_load;
2258	db_load;	2722	db_init;
2259	load_extensions;	2723	load_extensions;
		2724
		2725	$TICK_WATCHER->start;
2260	Event::loop;	2726	Event::loop;
2261	}	2727	}
2262		2728
2263	#############################################################################	2729	#############################################################################
2264	# initialisation and cleanup	2730	# initialisation and cleanup
2265		2731
2266	# install some emergency cleanup handlers	2732	# install some emergency cleanup handlers
2267	BEGIN {	2733	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	2734	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	2735	Event->signal (
		2736	reentrant => 0,
2270	data => WF_AUTOCANCEL,	2737	data => WF_AUTOCANCEL,
2271	signal => $signal,	2738	signal => $signal,
		2739	prio => 0,
2272	cb => sub {	2740	cb => sub {
2273	cf::cleanup "SIG$signal";	2741	cf::cleanup "SIG$signal";
2274	},	2742	},
2275	);	2743	);
2276	}	2744	}
2277	}	2745	}
2278		2746
		2747	sub write_runtime {
		2748	my $runtime = "$LOCALDIR/runtime";
		2749
		2750	# first touch the runtime file to show we are still running:
		2751	# the fsync below can take a very very long time.
		2752
		2753	IO::AIO::aio_utime $runtime, undef, undef;
		2754
		2755	my $guard = cf::lock_acquire "write_runtime";
		2756
		2757	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2758	or return;
		2759
		2760	my $value = $cf::RUNTIME + 90 + 10;
		2761	# 10 is the runtime save interval, for a monotonic clock
		2762	# 60 allows for the watchdog to kill the server.
		2763
		2764	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2765	and return;
		2766
		2767	# always fsync - this file is important
		2768	aio_fsync $fh
		2769	and return;
		2770
		2771	# touch it again to show we are up-to-date
		2772	aio_utime $fh, undef, undef;
		2773
		2774	close $fh
		2775	or return;
		2776
		2777	aio_rename "$runtime~", $runtime
		2778	and return;
		2779
		2780	warn "runtime file written.\n";
		2781
		2782	1
		2783	}
		2784
2279	sub emergency_save() {	2785	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	2786	my $freeze_guard = cf::freeze_mainloop;
2281		2787
2282	warn "enter emergency perl save\n";	2788	warn "enter emergency perl save\n";
2283		2789
2284	cf::sync_job {	2790	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	2791	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	2792	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	2793	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	2794	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	2795	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	2796	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	2797	$pl->valid or next;
2292	$pl->save;	2798	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	2804	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	2805	$map->valid or next;
2300	$map->save;	2806	$map->save;
2301	}	2807	}
2302	warn "end emergency map save\n";	2808	warn "end emergency map save\n";
		2809
		2810	warn "begin emergency database checkpoint\n";
		2811	BDB::db_env_txn_checkpoint $DB_ENV;
		2812	warn "end emergency database checkpoint\n";
2303	};	2813	};
2304		2814
2305	warn "leave emergency perl save\n";	2815	warn "leave emergency perl save\n";
2306	}	2816	}
2307		2817
		2818	sub post_cleanup {
		2819	my ($make_core) = @_;
		2820
		2821	warn Carp::longmess "post_cleanup backtrace"
		2822	if $make_core;
		2823	}
		2824
2308	sub reload() {	2825	sub do_reload_perl() {
2309	# can/must only be called in main	2826	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	2827	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	2828	warn "can only reload from main coroutine";
2312	return;	2829	return;
2313	}	2830	}
2314		2831
2315	warn "reloading...";	2832	warn "reloading...";
2316		2833
2317	warn "freezing server";	2834	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	2835
		2836	cf::sync_job {
		2837	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	2838	cf::emergency_save;
		2839	cf::write_runtime; # external watchdog should not bark
2320		2840
2321	warn "sync database to disk";	2841	warn "syncing database to disk";
2322	cf::db_sync;	2842	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		2843
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	2844	# if anything goes wrong in here, we should simply crash as we already saved
2327		2845
2328	warn "cancel all watchers";	2846	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	2847	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	2848	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	2849	}
2332		2850
		2851	warn "flushing outstanding aio requests";
		2852	for (;;) {
		2853	BDB::flush;
		2854	IO::AIO::flush;
		2855	Coro::cede;
		2856	last unless IO::AIO::nreqs || BDB::nreqs;
		2857	warn "iterate...";
		2858	}
		2859
		2860	++$RELOAD;
		2861
2333	warn "cancel all extension coros";	2862	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	2863	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	2864	%EXT_CORO = ();
2336		2865
2337	warn "remove commands";	2866	warn "removing commands";
2338	%COMMAND = ();	2867	%COMMAND = ();
2339		2868
2340	warn "remove ext commands";	2869	warn "removing ext commands";
2341	%EXTCMD = ();	2870	%EXTCMD = ();
2342		2871
2343	warn "unload/nuke all extensions";	2872	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	2873	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	2874	warn "... unloading $pkg";
2346		2875
2347	if (my $cb = $pkg->can ("unload")) {	2876	if (my $cb = $pkg->can ("unload")) {
2348	eval {	2877	eval {
…		…
2353		2882
2354	warn "... nuking $pkg";	2883	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	2884	Symbol::delete_package $pkg;
2356	}	2885	}
2357		2886
2358	warn "unload all perl modules loaded from $LIBDIR";	2887	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	2888	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2889	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		2890
2362	warn "removing <$k>";	2891	warn "... unloading $k";
2363	delete $INC{$k};	2892	delete $INC{$k};
2364		2893
2365	$k =~ s/\.pm$//;	2894	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	2895	$k =~ s/\//::/g;
2367		2896
…		…
2370	}	2899	}
2371		2900
2372	Symbol::delete_package $k;	2901	Symbol::delete_package $k;
2373	}	2902	}
2374		2903
2375	warn "get rid of safe::, as good as possible";	2904	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	2905	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2906	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		2907
2379	warn "unload cf.pm \"a bit\"";	2908	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	2909	delete $INC{"cf.pm"};
		2910	delete $INC{"cf/pod.pm"};
2381		2911
2382	# don't, removes xs symbols, too,	2912	# don't, removes xs symbols, too,
2383	# and global variables created in xs	2913	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	2914	#Symbol::delete_package __PACKAGE__;
2385		2915
		2916	warn "unload completed, starting to reload now";
		2917
2386	warn "reloading cf.pm";	2918	warn "reloading cf.pm";
2387	require cf;	2919	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2920	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2921
2390	warn "load config and database again";	2922	warn "loading config and database again";
2391	cf::cfg_load;	2923	cf::cfg_load;
2392	cf::db_load;
2393		2924
2394	warn "load extensions";	2925	warn "loading extensions";
2395	cf::load_extensions;	2926	cf::load_extensions;
2396		2927
2397	warn "reattach attachments to objects/players";	2928	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2929	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	2930	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2931	reattach $_ for values %MAP;
2401	};	2932	warn "reattaching attachments to players";
		2933	reattach $_ for values %PLAYER;
2402		2934
2403	if ($@) {	2935	warn "leaving sync_job";
		2936
		2937	1
		2938	} or do {
2404	warn $@;	2939	warn $@;
2405	warn "error while reloading, exiting.";	2940	warn "error while reloading, exiting.";
2406	exit 1;	2941	exit 1;
2407	}	2942	};
2408		2943
2409	warn "reloaded";	2944	warn "reloaded";
2410	};	2945	};
2411		2946
2412	#############################################################################	2947	our $RELOAD_WATCHER; # used only during reload
2413		2948
2414	unless ($LINK_MAP) {	2949	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	2950	# doing reload synchronously and two reloads happen back-to-back,
		2951	# coro crashes during coro_state_free->destroy here.
2416		2952
2417	$LINK_MAP->width (41);	2953	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	2954	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	2955	after => 0,
		2956	data => WF_AUTOCANCEL,
2427	cb => sub {	2957	cb => sub {
2428	$_[0]->w->cancel;	2958	do_reload_perl;
2429		2959	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	2960	},
2448		2961	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	2962	}
2454		2963
2455	register_command "reload" => sub {	2964	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	2965	my ($who, $arg) = @_;
2457		2966
2458	if ($who->flag (FLAG_WIZ)) {	2967	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	2968	$who->message ("reloading server.");
		2969	async { reload_perl };
2462	}	2970	}
2463	};	2971	};
2464		2972
2465	unshift @INC, $LIBDIR;	2973	unshift @INC, $LIBDIR;
2466		2974
		2975	my $bug_warning = 0;
		2976
		2977	our @WAIT_FOR_TICK;
		2978	our @WAIT_FOR_TICK_BEGIN;
		2979
		2980	sub wait_for_tick {
		2981	return unless $TICK_WATCHER->is_active;
		2982	return if $Coro::current == $Coro::main;
		2983
		2984	my $signal = new Coro::Signal;
		2985	push @WAIT_FOR_TICK, $signal;
		2986	$signal->wait;
		2987	}
		2988
		2989	sub wait_for_tick_begin {
		2990	return unless $TICK_WATCHER->is_active;
		2991	return if $Coro::current == $Coro::main;
		2992
		2993	my $signal = new Coro::Signal;
		2994	push @WAIT_FOR_TICK_BEGIN, $signal;
		2995	$signal->wait;
		2996	}
		2997
		2998	my $min = 1e6;#d#
		2999	my $avg = 10;
2467	$TICK_WATCHER = Event->timer (	3000	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	3001	reentrant => 0,
		3002	parked => 1,
2469	prio => 0,	3003	prio => 0,
2470	at => $NEXT_TICK || $TICK,	3004	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	3005	data => WF_AUTOCANCEL,
2472	cb => sub {	3006	cb => sub {
		3007	if ($Coro::current != $Coro::main) {
		3008	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3009	unless ++$bug_warning > 10;
		3010	return;
		3011	}
		3012
		3013	$NOW = $tick_start = Event::time;
		3014
2473	cf::server_tick; # one server iteration	3015	cf::server_tick; # one server iteration
		3016
		3017	0 && sync_job {#d#
		3018	for(1..10) {
		3019	my $t = Event::time;
		3020	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3021	or die;
		3022
		3023	$map->width (50);
		3024	$map->height (50);
		3025	$map->alloc;
		3026	$map->_load_objects ("/tmp/x.map", 1);
		3027	my $t = Event::time - $t;
		3028
		3029	#next unless $t < 0.0013;#d#
		3030	if ($t < $min) {
		3031	$min = $t;
		3032	}
		3033	$avg = $avg * 0.99 + $t * 0.01;
		3034	}
		3035	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3036	exit 0;
		3037	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3038	};
		3039
2474	$RUNTIME += $TICK;	3040	$RUNTIME += $TICK;
2475	$NEXT_TICK += $TICK;	3041	$NEXT_TICK += $TICK;
2476		3042
2477	$WAIT_FOR_TICK->broadcast;	3043	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3044	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3045	Coro::async_pool {
		3046	write_runtime
		3047	or warn "ERROR: unable to write runtime file: $!";
		3048	};
		3049	}
		3050
		3051	# my $AFTER = Event::time;
		3052	# warn $AFTER - $NOW;#d#
		3053
		3054	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3055	$sig->send;
		3056	}
		3057	while (my $sig = shift @WAIT_FOR_TICK) {
		3058	$sig->send;
		3059	}
		3060
		3061	$NOW = Event::time;
2479		3062
2480	# if we are delayed by four ticks or more, skip them all	3063	# if we are delayed by four ticks or more, skip them all
2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3064	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2482		3065
2483	$TICK_WATCHER->at ($NEXT_TICK);	3066	$TICK_WATCHER->at ($NEXT_TICK);
2484	$TICK_WATCHER->start;	3067	$TICK_WATCHER->start;
		3068
		3069	$LOAD = ($NOW - $tick_start) / $TICK;
		3070	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3071
		3072	_post_tick;
		3073
		3074
2485	},	3075	},
2486	);	3076	);
2487		3077
		3078	{
2488	IO::AIO::max_poll_time $TICK * 0.2;	3079	BDB::max_poll_time $TICK * 0.1;
2489		3080	$BDB_POLL_WATCHER = Event->io (
2490	Event->io (	3081	reentrant => 0,
2491	fd => IO::AIO::poll_fileno,	3082	fd => BDB::poll_fileno,
2492	poll => 'r',	3083	poll => 'r',
2493	prio => 5,	3084	prio => 0,
2494	data => WF_AUTOCANCEL,
2495	cb => \&IO::AIO::poll_cb,
2496	);
2497
2498	Event->timer (
2499	data => WF_AUTOCANCEL,	3085	data => WF_AUTOCANCEL,
2500	after => 0,	3086	cb => \&BDB::poll_cb,
2501	interval => 10,	3087	);
2502	cb => sub {	3088	BDB::min_parallel 8;
2503	(Coro::unblock_sub {	3089
2504	write_runtime	3090	BDB::set_sync_prepare {
2505	or warn "ERROR: unable to write runtime file: $!";	3091	my $status;
		3092	my $current = $Coro::current;
		3093	(
		3094	sub {
		3095	$status = $!;
		3096	$current->ready; undef $current;
		3097	},
		3098	sub {
		3099	Coro::schedule while defined $current;
		3100	$! = $status;
		3101	},
		3102	)
		3103	};
		3104
		3105	unless ($DB_ENV) {
		3106	$DB_ENV = BDB::db_env_create;
		3107
		3108	cf::sync_job {
		3109	eval {
		3110	BDB::db_env_open
		3111	$DB_ENV,
		3112	$BDBDIR,
		3113	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3114	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3115	0666;
		3116
		3117	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3118
		3119	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3120	$DB_ENV->set_lk_detect;
		3121	};
		3122
		3123	cf::cleanup "db_env_open(db): $@" if $@;
2506	})->();	3124	};
2507	},	3125	}
2508	);	3126	}
		3127
		3128	{
		3129	IO::AIO::min_parallel 8;
		3130
		3131	undef $Coro::AIO::WATCHER;
		3132	IO::AIO::max_poll_time $TICK * 0.1;
		3133	$AIO_POLL_WATCHER = Event->io (
		3134	reentrant => 0,
		3135	data => WF_AUTOCANCEL,
		3136	fd => IO::AIO::poll_fileno,
		3137	poll => 'r',
		3138	prio => 6,
		3139	cb => \&IO::AIO::poll_cb,
		3140	);
		3141	}
		3142
		3143	my $_log_backtrace;
		3144
		3145	sub _log_backtrace {
		3146	my ($msg, @addr) = @_;
		3147
		3148	$msg =~ s/\n//;
		3149
		3150	# limit the # of concurrent backtraces
		3151	if ($_log_backtrace < 2) {
		3152	++$_log_backtrace;
		3153	async {
		3154	my @bt = fork_call {
		3155	@addr = map { sprintf "%x", $_ } @addr;
		3156	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3157	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3158	or die "addr2line: $!";
		3159
		3160	my @funcs;
		3161	my @res = <$fh>;
		3162	chomp for @res;
		3163	while (@res) {
		3164	my ($func, $line) = splice @res, 0, 2, ();
		3165	push @funcs, "[$func] $line";
		3166	}
		3167
		3168	@funcs
		3169	};
		3170
		3171	LOG llevInfo, "[ABT] $msg\n";
		3172	LOG llevInfo, "[ABT] $_\n" for @bt;
		3173	--$_log_backtrace;
		3174	};
		3175	} else {
		3176	LOG llevInfo, "[ABT] $msg\n";
		3177	LOG llevInfo, "[ABT] [suppressed]\n";
		3178	}
		3179	}
		3180
		3181	# load additional modules
		3182	use cf::pod;
2509		3183
2510	END { cf::emergency_save }	3184	END { cf::emergency_save }
2511		3185
2512	1	3186	1
2513		3187

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