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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 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
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	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(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	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;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		91
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
60	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 $tick_start; # for load detecting purposes
61		98
62	binmode STDOUT;	99	binmode STDOUT;
63	binmode STDERR;	100	binmode STDERR;
64		101
65	# read virtual server time, if available	102	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
70	}	107	}
71		108
72	mkdir cf::localdir;	109	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		111
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
81		115
82	#############################################################################	116	#############################################################################
83		117
84	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
85		119
…		…
92	=item $cf::RUNTIME	126	=item $cf::RUNTIME
93		127
94	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
95	every server tick.	129	every server tick.
96		130
97	=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
98		134
99	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		139
102	=item $cf::NOW	140	=item $cf::NOW
103		141
104	The time of the last (current) server tick.	142	The time of the last (current) server tick.
105		143
106	=item $cf::TICK	144	=item $cf::TICK
107		145
108	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.
109		157
110	=item %cf::CFG	158	=item %cf::CFG
111		159
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	161	from wherever your confdir points to.
114		162
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		164
117	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
118	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
119	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.
120	window of cpu time available, or simply to synchronise to the server tick.
121		168
122	=back	169	=back
123		170
124	=cut	171	=cut
125		172
126	BEGIN {	173	BEGIN {
127	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	175	my $msg = join "", @_;
129	utf8::encode $msg;
130		176
131	$msg .= "\n"	177	$msg .= "\n"
132	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
133		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
134	LOG llevError, $msg;	183	LOG llevError, $msg;
135	};	184	};
136	}	185	}
137		186
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		194
145	# 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
146	# within the Safe compartment.	196	# within the Safe compartment.
147	for my $pkg (qw(	197	for my $pkg (qw(
148	cf::global cf::attachable	198	cf::global cf::attachable
…		…
157		207
158	$Event::DIED = sub {	208	$Event::DIED = sub {
159	warn "error in event callback: @_";	209	warn "error in event callback: @_";
160	};	210	};
161		211
162	my %ext_pkg;	212	#############################################################################
163	my @exts;
164	my @hook;
165		213
166	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
167		215
168	=over 4	216	=over 4
169		217
…		…
188	$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;
189	$d	237	$d
190	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
191	}	239	}
192		240
193	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
194		242
195	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
196		244
197	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
198		246
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
207		248
208	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		250
217	=item cf::lock_wait $string	251	=item cf::lock_wait $string
218		252
219	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
220		254
…		…
226	returned.	260	returned.
227		261
228	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
229	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
230		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
231	=cut	269	=cut
232		270
233	our %LOCK;	271	our %LOCK;
234		272
235	sub lock_wait($) {	273	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
256	}	294	}
257	}	295	}
258		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
259	sub freeze_mainloop {	303	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
261		305
262	my $guard = Coro::guard { $TICK_WATCHER->start };	306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
263	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
264	$guard	310	$guard
265	}	311	}
266		312
267	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
274		320
275	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
276		322
277	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
278		324
279	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
282		329
283	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
286	fast or be very important.	333	fast or be very important.
…		…
289		336
290	sub sync_job(&) {	337	sub sync_job(&) {
291	my ($job) = @_;	338	my ($job) = @_;
292		339
293	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
294	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
296		345
297	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
309		358
310	while ($busy) {	359	while ($busy) {
311	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
312	}	361	}
313		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
314	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
315	} else {	371	} else {
316	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
317		373
318	$job->()	374	$job->()
319	}	375	}
320	}	376	}
321		377
322	=item $coro = cf::async_ext { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
323		379
324	Like async, but this coro is automcatially being canceled when the	380	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	381	extension calling this is being unloaded.
326		382
327	=cut	383	=cut
328		384
329	sub async_ext(&) {	385	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
338		394
339	$coro	395	$coro
340	}	396	}
341		397
342	sub write_runtime {	398	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		399
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
346	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.
347		404
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		406
352	aio_fsync $fh	407	sub fork_call(&@) {
353	and return;	408	my ($cb, @args) = @_;
354		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) {
355	close $fh	416	close $fh2;
356	or return;
357		417
358	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
359	and return;	419	$res = Coro::Storable::thaw $res;
360		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
361	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
362	}	567	}
363		568
364	=back	569	=back
365		570
366	=cut	571	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		572
490	#############################################################################	573	#############################################################################
491		574
492	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
493		576
…		…
495	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")
496	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
497		580
498	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>
499	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
500	crossfire+).	583	Crossfire TRT).
501		584
502	=over 4	585	=over 4
503		586
504	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
505		588
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	703	our @CB_MAP = ();
621		704
622	my %attachment;	705	my %attachment;
623		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
624	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
626		715
627	use sort 'stable';	716	use sort 'stable';
628		717
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
663		752
664	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		757
669	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	759	my $pkg = shift @arg;
671		760
672	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
702	}	791	}
703		792
704	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
705	} else {	794	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	796	}
708		797
709	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
710	}	799	}
711		800
…		…
713	if (ref $_[0]) {	802	if (ref $_[0]) {
714	_object_attach @_;	803	_object_attach @_;
715	} else {	804	} else {
716	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
717	}	806	}
		807	_recalc_want;
718	};	808	};
719		809
720	# all those should be optimised	810	# all those should be optimised
721	sub cf::attachable::detach {	811	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
726	reattach ($obj);	816	reattach ($obj);
727	} else {	817	} else {
728	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
729	}	819	}
		820	_recalc_want;
730	};	821	};
731		822
732	sub cf::attachable::attached {	823	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
734		825
…		…
799	# object support	890	# object support
800		891
801	sub reattach {	892	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		897
805	my $registry = $obj->registry;	898	my $registry = $obj->registry;
806		899
807	@$registry = ();	900	@$registry = ();
808		901
…		…
855	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
856		949
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	954	close $fh;
862		955
863	if (@$objs) {	956	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	962	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
871	}	964	}
872	} else {	965	} else {
873	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
905	or return;	998	or return;
906	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
907	}	1000	}
908		1001
909	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
911	return ($data, $av);	1004	return ($data, $av);
912	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
913		1012
914	#############################################################################	1013	#############################################################################
915	# command handling &c	1014	# command handling &c
916		1015
917	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1030	}
932		1031
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1033
935	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.
936		1035
937	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
938	called.	1037	called.
939		1038
940	=cut	1039	=cut
941		1040
942	sub register_extcmd {	1041	sub register_extcmd {
943	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
944		1043
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
949	}	1045	}
950		1046
951	cf::player->attach (	1047	cf::player->attach (
952	on_command => sub {	1048	on_command => sub {
953	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
966		1062
967	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
968		1064
969	if (ref $msg) {	1065	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	1069	}
974	}	1070	}
975	} else {	1071	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		1074
979	cf::override;	1075	cf::override;
980	},	1076	},
981	);	1077	);
982		1078
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
1060	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1084	next unless -r $path;
1062	eval {	1085
1063	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;
1064	1	1143	}
1065	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
1066	}	1149	};
1067	}	1150	}
1068		1151
1069	#############################################################################	1152	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1153
1072	*cf::mapsupport::on_clean = sub {	1154	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1155
1085	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
1086		1157
1087	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
1088		1159
…		…
1101	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
1102		1173
1103	=cut	1174	=cut
1104		1175
1105	sub playerdir($) {	1176	sub playerdir($) {
1106	cf::localdir	1177	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1179	}
1112		1180
1113	sub path($) {	1181	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1183
1116	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
1117	}	1185	}
1118		1186
1119	sub find_active($) {	1187	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
1124		1192
1125	sub exists($) {	1193	sub exists($) {
1126	my ($login) = @_;	1194	my ($login) = @_;
1127		1195
1128	$cf::PLAYER{$login}	1196	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1197	or cf::sync_job { !aio_stat path $login }
1130	}	1198	}
1131		1199
1132	sub find($) {	1200	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1201	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1202	my $login = $_[0];
1135		1203
1136	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
1137		1205
1138	$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
1139	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
1140	or return;	1215	or return;
1141	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
1142	}	1217	}
1143	}	1218	}
…		…
1180		1255
1181	=cut	1256	=cut
1182		1257
1183	sub quit_character {	1258	sub quit_character {
1184	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1185		1262
1186	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1187	$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
1188		1265
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1198	$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
1199	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;
1200	}	1297	}
1201		1298
1202	=item cf::player::list_logins	1299	=item cf::player::list_logins
1203		1300
1204	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
1205	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1206		1303
1207	=cut	1304	=cut
1208		1305
1209	sub list_logins {	1306	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1308	or return [];
1212		1309
1213	my @logins;	1310	my @logins;
1214		1311
1215	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1224	\@logins	1321	\@logins
1225	}	1322	}
1226		1323
1227	=item $player->maps	1324	=item $player->maps
1228		1325
1229	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
1230	player. May block.	1327	player. May block.
1231		1328
1232	=cut	1329	=cut
1233		1330
1234	sub maps($) {	1331	sub maps($) {
1235	my ($pl) = @_;	1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1335
1237	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1238	or return;	1337	or return;
1239		1338
1240	my @paths;	1339	my @paths;
1241		1340
1242	for (@$files) {	1341	for (@$files) {
1243	utf8::decode $_;	1342	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1344	next unless /^$PATH_SEP/o;
1246		1345
1247	s/$PATH_SEP/\//g;	1346	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1347	}
1250		1348
1251	\@paths	1349	\@paths
1252	}	1350	}
1253		1351
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1255		1353
1256	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1257		1355
1258	=cut	1356	=cut
1259		1357
1260	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1262		1360
1263	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1264		1362
1265	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1266	}	1364	}
1267		1365
1268	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
1269		1406
1270	=back	1407	=back
1271
1272		1408
1273	=head3 cf::map	1409	=head3 cf::map
1274		1410
1275	=over 4	1411	=over 4
1276		1412
…		…
1279	package cf::map;	1415	package cf::map;
1280		1416
1281	use Fcntl;	1417	use Fcntl;
1282	use Coro::AIO;	1418	use Coro::AIO;
1283		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
1284	our $MAX_RESET = 3600;	1424	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1425	our $DEFAULT_RESET = 3000;
1286		1426
1287	sub generate_random_map {	1427	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1430	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1434	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1435	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1439	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1441	(cf::region::find $rmp->{region}), $rmp->{custom}
		1442	)
		1443	}
		1444
		1445	=item cf::map->register ($regex, $prio)
		1446
		1447	Register a handler for the map path matching the given regex at the
		1448	givne priority (higher is better, built-in handlers have priority 0, the
		1449	default).
		1450
		1451	=cut
		1452
		1453	sub register {
		1454	my (undef, $regex, $prio) = @_;
		1455	my $pkg = caller;
		1456
		1457	no strict;
		1458	push @{"$pkg\::ISA"}, __PACKAGE__;
		1459
		1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1461	}
		1462
		1463	# also paths starting with '/'
		1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1465
		1466	sub thawer_merge {
		1467	my ($self, $merge) = @_;
		1468
		1469	# we have to keep some variables in memory intact
		1470	local $self->{path};
		1471	local $self->{load_path};
		1472
		1473	$self->SUPER::thawer_merge ($merge);
		1474	}
		1475
		1476	sub normalise {
		1477	my ($path, $base) = @_;
		1478
		1479	$path = "$path"; # make sure its a string
		1480
		1481	$path =~ s/\.map$//;
		1482
		1483	# map plan:
		1484	#
		1485	# /! non-realised random map exit (special hack!)
		1486	# {... are special paths that are not being touched
		1487	# ?xxx/... are special absolute paths
		1488	# ?random/... random maps
		1489	# /... normal maps
		1490	# ~user/... per-player map of a specific user
		1491
		1492	$path =~ s/$PATH_SEP/\//go;
		1493
		1494	# treat it as relative path if it starts with
		1495	# something that looks reasonable
		1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1498
		1499	$base =~ s{[^/]+/?$}{};
		1500	$path = "$base/$path";
		1501	}
		1502
		1503	for ($path) {
		1504	redo if s{//}{/};
		1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
		1508
		1509	$path
		1510	}
		1511
		1512	sub new_from_path {
		1513	my (undef, $path, $base) = @_;
		1514
		1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1516
		1517	$path = normalise $path, $base;
		1518
		1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1521	my $self = bless cf::map::new, $pkg;
		1522	$self->{path} = $path; $self->path ($path);
		1523	$self->init; # pass $1 etc.
		1524	return $self;
		1525	}
		1526	}
		1527
		1528	Carp::carp "unable to resolve path '$path' (base '$base').";
		1529	()
		1530	}
		1531
		1532	sub init {
		1533	my ($self) = @_;
		1534
		1535	$self
		1536	}
		1537
		1538	sub as_string {
		1539	my ($self) = @_;
		1540
		1541	"$self->{path}"
		1542	}
		1543
		1544	# the displayed name, this is a one way mapping
		1545	sub visible_name {
		1546	&as_string
		1547	}
		1548
		1549	# the original (read-only) location
		1550	sub load_path {
		1551	my ($self) = @_;
		1552
		1553	"$MAPDIR/$self->{path}.map"
		1554	}
		1555
		1556	# the temporary/swap location
		1557	sub save_path {
		1558	my ($self) = @_;
		1559
		1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1561	"$TMPDIR/$path.map"
		1562	}
		1563
		1564	# the unique path, undef == no special unique path
		1565	sub uniq_path {
		1566	my ($self) = @_;
		1567
		1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1569	"$UNIQUEDIR/$path"
1304	}	1570	}
1305		1571
1306	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1307	# all maps in C++...	1573	# all maps in C++...
1308	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1310		1576
1311	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1313	}	1579	}
1314		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
		1589	sub unlink_save {
		1590	my ($self) = @_;
		1591
		1592	utf8::encode (my $save = $self->save_path);
		1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1595	}
		1596
1315	sub try_load_header($) {	1597	sub load_header_from($) {
1316	my ($path) = @_;	1598	my ($self, $path) = @_;
1317		1599
1318	utf8::encode $path;	1600	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
1320	or return;	1605	or return;
1321		1606
1322	my $map = cf::map::new	1607	$self->{load_path} = $path;
		1608
		1609	1
		1610	}
		1611
		1612	sub load_header_orig {
		1613	my ($self) = @_;
		1614
		1615	$self->load_header_from ($self->load_path)
		1616	}
		1617
		1618	sub load_header_temp {
		1619	my ($self) = @_;
		1620
		1621	$self->load_header_from ($self->save_path)
		1622	}
		1623
		1624	sub prepare_temp {
		1625	my ($self) = @_;
		1626
		1627	$self->last_access ((delete $self->{last_access})
		1628	|| $cf::RUNTIME); #d#
		1629	# safety
		1630	$self->{instantiate_time} = $cf::RUNTIME
		1631	if $self->{instantiate_time} > $cf::RUNTIME;
		1632	}
		1633
		1634	sub prepare_orig {
		1635	my ($self) = @_;
		1636
		1637	$self->{load_original} = 1;
		1638	$self->{instantiate_time} = $cf::RUNTIME;
		1639	$self->last_access ($cf::RUNTIME);
		1640	$self->instantiate;
		1641	}
		1642
		1643	sub load_header {
		1644	my ($self) = @_;
		1645
		1646	if ($self->load_header_temp) {
		1647	$self->prepare_temp;
		1648	} else {
		1649	$self->load_header_orig
1323	or return;	1650	or return;
		1651	$self->prepare_orig;
		1652	}
1324		1653
1325	# for better error messages only, will be overwritten	1654	$self->{deny_reset} = 1
1326	$map->path ($path);	1655	if $self->no_reset;
1327		1656
1328	$map->load_header ($path)	1657	$self->default_region (cf::region::find_by_path $self->{path})
1329	or return;	1658	unless $self->default_region;
1330		1659
1331	$map->{load_path} = $path;	1660	1
1332
1333	$map
1334	}	1661	}
1335		1662
1336	sub find;	1663	sub find;
1337	sub find {	1664	sub find {
1338	my ($path, $origin) = @_;	1665	my ($path, $origin) = @_;
1339		1666
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1667	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1668
1345	cf::lock_wait "map_find:$key";	1669	cf::lock_wait "map_find:$path";
1346		1670
1347	$cf::MAP{$key} || do {	1671	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1672	my $guard = cf::lock_acquire "map_find:$path";
1349		1673	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1674	or return;
1369		1675
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1382		1677
1383	Coro::cede;	1678	$map->load_header
		1679	or return;
1384		1680
1385	if ($map->should_reset) {	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1682	# doing this can freeze the server in a sync job, obviously
		1683	#$cf::WAIT_FOR_TICK->wait;
1386	$map->reset;	1684	$map->reset;
1387	undef $guard;	1685	undef $guard;
1388	$map = find $path	1686	return find $path;
1389	or return;
1390	}	1687	}
1391		1688
1392	$cf::MAP{$key} = $map	1689	$cf::MAP{$path} = $map
1393	}	1690	}
1394	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1395		1695
1396	sub load {	1696	sub load {
1397	my ($self) = @_;	1697	my ($self) = @_;
1398		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
1399	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1704	my $guard = cf::lock_acquire "map_load:$path";
1401		1705
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1707
1404	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1405		1709
1406	$self->alloc;	1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
1407	$self->load_objects ($self->{load_path}, 1)	1715	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1716	or return;
1409		1717
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1719	if delete $self->{load_original};
1412		1720
1413	if (my $uniq = $path->uniq_path) {	1721	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1722	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1723	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1724	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1725	$self->_load_objects ($uniq, 0);
1418	}	1726	}
1419	}	1727	}
1420		1728
1421	Coro::cede;	1729	Coro::cede;
1422
1423	# now do the right thing for maps	1730	# now do the right thing for maps
1424	$self->link_multipart_objects;	1731	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	1733	unless $self->difficulty;
		1734	Coro::cede;
		1735
		1736	unless ($self->{deny_activate}) {
		1737	$self->decay_objects;
		1738	$self->fix_auto_apply;
		1739	$self->update_buttons;
		1740	Coro::cede;
		1741	$self->set_darkness_map;
		1742	Coro::cede;
1436	$self->activate;	1743	$self->activate;
1437	}	1744	}
1438		1745
1439	Coro::cede;
1440
1441	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
		1747	}
		1748
		1749	$self->post_load;
		1750	}
		1751
		1752	sub customise_for {
		1753	my ($self, $ob) = @_;
		1754
		1755	return find "~" . $ob->name . "/" . $self->{path}
		1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
		1761	$self
		1762	}
		1763
		1764	# find and load all maps in the 3x3 area around a map
		1765	sub load_diag {
		1766	my ($map) = @_;
		1767
		1768	my @diag; # diagonal neighbours
		1769
		1770	for (0 .. 3) {
		1771	my $neigh = $map->tile_path ($_)
		1772	or next;
		1773	$neigh = find $neigh, $map
		1774	or next;
		1775	$neigh->load;
		1776
		1777	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1778	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1779	}
		1780
		1781	for (@diag) {
		1782	my $neigh = find @$_
		1783	or next;
		1784	$neigh->load;
		1785	}
1442	}	1786	}
1443		1787
1444	sub find_sync {	1788	sub find_sync {
1445	my ($path, $origin) = @_;	1789	my ($path, $origin) = @_;
1446		1790
1447	cf::sync_job { cf::map::find $path, $origin }	1791	cf::sync_job { find $path, $origin }
1448	}	1792	}
1449		1793
1450	sub do_load_sync {	1794	sub do_load_sync {
1451	my ($map) = @_;	1795	my ($map) = @_;
1452		1796
1453	cf::sync_job { $map->load };	1797	cf::sync_job { $map->load };
1454	}	1798	}
1455		1799
		1800	our %MAP_PREFETCH;
		1801	our $MAP_PREFETCHER = undef;
		1802
		1803	sub find_async {
		1804	my ($path, $origin) = @_;
		1805
		1806	$path = normalise $path, $origin && $origin->{path};
		1807
		1808	if (my $map = $cf::MAP{$path}) {
		1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1810	}
		1811
		1812	undef $MAP_PREFETCH{$path};
		1813	$MAP_PREFETCHER ||= cf::async {
		1814	while (%MAP_PREFETCH) {
		1815	for my $path (keys %MAP_PREFETCH) {
		1816	my $map = find $path
		1817	or next;
		1818	$map->load;
		1819
		1820	delete $MAP_PREFETCH{$path};
		1821	}
		1822	}
		1823	undef $MAP_PREFETCHER;
		1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
		1828	}
		1829
1456	sub save {	1830	sub save {
1457	my ($self) = @_;	1831	my ($self) = @_;
1458		1832
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
1460		1834
1461	$self->{last_save} = $cf::RUNTIME;	1835	$self->{last_save} = $cf::RUNTIME;
1462		1836
1463	return unless $self->dirty;	1837	return unless $self->dirty;
1464		1838
1465	my $save = $self->{path}->save_path; utf8::encode $save;	1839	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		1841
1468	$self->{load_path} = $save;	1842	$self->{load_path} = $save;
1469		1843
1470	return if $self->{deny_save};	1844	return if $self->{deny_save};
1471		1845
…		…
1474	cf::async {	1848	cf::async {
1475	$_->contr->save for $self->players;	1849	$_->contr->save for $self->players;
1476	};	1850	};
1477		1851
1478	if ($uniq) {	1852	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	1855	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	1857	}
1484	}	1858	}
1485		1859
1486	sub swap_out {	1860	sub swap_out {
1487	my ($self) = @_;	1861	my ($self) = @_;
…		…
1501		1875
1502	sub reset_at {	1876	sub reset_at {
1503	my ($self) = @_;	1877	my ($self) = @_;
1504		1878
1505	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1508		1881
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		1884
…		…
1516	my ($self) = @_;	1889	my ($self) = @_;
1517		1890
1518	$self->reset_at <= $cf::RUNTIME	1891	$self->reset_at <= $cf::RUNTIME
1519	}	1892	}
1520		1893
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	1894	sub reset {
1543	my ($self) = @_;	1895	my ($self) = @_;
1544		1896
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		1898
1547	return if $self->players;	1899	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		1900
1550	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
1551		1912
1552	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
1553		1916
1554	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1555		1918
1556	$self->unlink_save;	1919	$self->unlink_save;
1557	$self->destroy;	1920	$self->destroy;
…		…
1560	my $nuke_counter = "aaaa";	1923	my $nuke_counter = "aaaa";
1561		1924
1562	sub nuke {	1925	sub nuke {
1563	my ($self) = @_;	1926	my ($self) = @_;
1564		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	1934	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	1935	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
1568	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1569	}	1941	}
1570		1942
1571	sub customise_for {	1943	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		1944
1574	if ($map->per_player) {	1945	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
1576	}	1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
1577		1960
1578	$map	1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
		1979	=item cf::map::unique_maps
		1980
		1981	Returns an arrayref of paths of all shared maps that have
		1982	instantiated unique items. May block.
		1983
		1984	=cut
		1985
		1986	sub unique_maps() {
		1987	[
		1988	map {
		1989	utf8::decode $_;
		1990	/\.map$/
		1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
		1994	]
1579	}	1995	}
1580		1996
1581	package cf;	1997	package cf;
1582		1998
1583	=back	1999	=back
…		…
1629		2045
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2047
1632	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1634	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1637	}	2064	}
1638	}	2065	}
1639		2066
1640	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1641		2068
…		…
1655		2082
1656	=item $player_object->enter_link	2083	=item $player_object->enter_link
1657		2084
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2085	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2086
1660	The player should be reaosnably safe there for short amounts of time. You	2087	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	2088	I<MUST> call C<leave_link> as soon as possible, though.
1662		2089
		2090	Will never block.
		2091
1663	=item $player_object->leave_link ($map, $x, $y)	2092	=item $player_object->leave_link ($map, $x, $y)
1664		2093
1665	Moves the player out of the specila link map onto the given map. If the	2094	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2095	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2096	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2097	fails, to the emergency map position.
1669		2098
1670	Might block.	2099	Might block.
1671		2100
1672	=cut	2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
1673		2112
1674	sub cf::object::player::enter_link {	2113	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2114	my ($self) = @_;
1676		2115
1677	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1678		2117
1679	return if $self->map == $LINK_MAP;	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2119
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1683		2122
1684	$self->enter_map ($LINK_MAP, 20, 20);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2124	}
1686		2125
1687	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1689		2130
1690	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1691		2132
1692	unless ($map) {	2133	unless ($map) {
1693	# restore original map position	2134	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2148	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2149	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2150	if $x <=0 && $y <= 0;
1710		2151
1711	$map->load;	2152	$map->load;
		2153	$map->load_diag;
1712		2154
1713	return unless $self->contr->active;	2155	return unless $self->contr->active;
1714	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1716	}	2160	}
1717		2161
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1751		2163
		2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
		2168
1752	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1753		2172
1754	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
1756		2175
1757	$path = new cf::path $path;	2176	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2178
1760	$self->enter_link;	2179	$self->enter_link;
1761		2180
1762	(async {	2181	(async {
		2182	my $map = eval {
1763	my $map = cf::map::find $path->as_string;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
1765		2187	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2188	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
1770		2191
		2192	$map
		2193	};
		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1772	})->prio (1);	2204	})->prio (1);
1773	}	2205	}
1774		2206
1775	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1776		2208
…		…
1778		2210
1779	sub parse_random_map_params {	2211	sub parse_random_map_params {
1780	my ($spec) = @_;	2212	my ($spec) = @_;
1781		2213
1782	my $rmp = { # defaults	2214	my $rmp = { # defaults
1783	xsize => 10,	2215	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
1785	};	2219	};
1786		2220
1787	for (split /\n/, $spec) {	2221	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2222	my ($k, $v) = split /\s+/, $_, 2;
1789		2223
…		…
1793	$rmp	2227	$rmp
1794	}	2228	}
1795		2229
1796	sub prepare_random_map {	2230	sub prepare_random_map {
1797	my ($exit) = @_;	2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2234
1799	# all this does is basically replace the /! path by	2235	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2236	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2237	# that depends on the exit object
1802		2238
1803	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1804		2240
1805	if ($exit->map) {	2241	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1810	}	2246	}
1811		2247
1812	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1813		2249
1814	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
1816		2253
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
1819		2258
1820	$exit->slaying ("?random/$md5");	2259	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2260	$exit->msg (undef);
1822	}	2261	}
1823	}	2262	}
1824		2263
1825	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1827		2266
1828	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
		2268
		2269	if ($exit->slaying eq "/!") {
		2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
1829		2279
1830	$self->enter_link;	2280	$self->enter_link;
1831		2281
1832	(async {	2282	(async {
1833	$self->deactivate_recursive; # just to be sure	2283	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2284	unless (eval {
1835	prepare_random_map $exit	2285	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2286
1841	1;	2287	1;
1842	}) {	2288	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2290	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2291	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2293
1848	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2295	$self->leave_link;
1850	}	2296	}
1851	})->prio (1);	2297	})->prio (1);
…		…
1864		2310
1865	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1867		2313
1868	utf8::encode $text;	2314	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2316	}
1871		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
1872		2330
1873	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1874		2332
1875	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1905	# get handled first	2363	# get handled first
1906	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2366
1909	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2369
1911	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1912		2371
1913	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2373	if (@$queue) {
…		…
1972		2431
1973	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1974		2433
1975	=pod	2434	=pod
1976		2435
1977	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1978		2437
1979	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1980	cf::object::player player	2439	cf::object::player player
1981	cf::player peaceful	2440	cf::player peaceful
1982	cf::map trigger	2441	cf::map trigger
…		…
2063	=back	2522	=back
2064		2523
2065	=cut	2524	=cut
2066		2525
2067	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
2068		2528
2069	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
2070		2531
2071	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
2072	currently store anything that can be serialised using Storable, which
2073	excludes objects.
2074		2533
2075	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
2076	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
2077		2537
2078	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
2079		2539
2080	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
2081		2542
2082	Return a hashref for use by the extension C<$family>, which can be
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085
2086	=item $value = cf::db_get $family => $key
2087
2088	Returns a single value from the database
2089
2090	=item cf::db_put $family => $hashref
2091
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
2118		2545
2119	my $pid;	2546	while (my ($face, $info) = each %$faces) {
2120		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2121	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2122	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2123	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2124	$DB->{_meta}{version} = 1;	2551	Coro::cede;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});
2141
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}
2146
2147	sub db_get($;$) {
2148	@_ >= 2
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152
2153	sub db_put($$;$) {
2154	if (@_ >= 3) {
2155	$DB->{$_[0]}{$_[1]} = $_[2];
2156	} else {
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161
2162	cf::global->attach (
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	2552	}
2167	);
2168	}
2169		2553
2170	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
2172		2616
2173	sub cfg_load {	2617	sub cfg_load {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	2619	or return;
2176		2620
2177	local $/;	2621	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
2179		2623
…		…
2193		2637
2194	sub main {	2638	sub main {
2195	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2642	(async {
2198	async { Event::one_event };	2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
2199	};	2645	};
2200		2646
2201	cfg_load;	2647	cfg_load;
2202	db_load;	2648	db_init;
2203	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
2204	Event::loop;	2652	Event::loop;
2205	}	2653	}
2206		2654
2207	#############################################################################	2655	#############################################################################
2208	# initialisation and cleanup	2656	# initialisation and cleanup
2209		2657
2210	# install some emergency cleanup handlers	2658	# install some emergency cleanup handlers
2211	BEGIN {	2659	BEGIN {
2212	for my $signal (qw(INT HUP TERM)) {	2660	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	2661	Event->signal (
		2662	reentrant => 0,
2214	data => WF_AUTOCANCEL,	2663	data => WF_AUTOCANCEL,
2215	signal => $signal,	2664	signal => $signal,
		2665	prio => 0,
2216	cb => sub {	2666	cb => sub {
2217	cf::cleanup "SIG$signal";	2667	cf::cleanup "SIG$signal";
2218	},	2668	},
2219	);	2669	);
2220	}	2670	}
2221	}	2671	}
2222		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
2223	sub emergency_save() {	2711	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	2712	my $freeze_guard = cf::freeze_mainloop;
2225		2713
2226	warn "enter emergency perl save\n";	2714	warn "enter emergency perl save\n";
2227		2715
2228	cf::sync_job {	2716	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	2717	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	2718	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	2719	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	2720	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	2721	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	2722	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	2723	$pl->valid or next;
2236	$pl->save;	2724	$pl->save;
…		…
2242	my $map = $cf::MAP{$path} or next;	2730	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	2731	$map->valid or next;
2244	$map->save;	2732	$map->save;
2245	}	2733	}
2246	warn "end emergency map save\n";	2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
2247	};	2739	};
2248		2740
2249	warn "leave emergency perl save\n";	2741	warn "leave emergency perl save\n";
2250	}	2742	}
2251		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2252	sub reload() {	2751	sub do_reload_perl() {
2253	# can/must only be called in main	2752	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
2256	return;	2755	return;
2257	}	2756	}
2258		2757
2259	warn "reloading...";	2758	warn "reloading...";
2260		2759
2261	my $guard = freeze_mainloop;	2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2263		2766
2264	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
2265	# if anything goes wrong in here, we should simply crash as we already saved	2770	# if anything goes wrong in here, we should simply crash as we already saved
2266		2771
2267	# cancel all watchers	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2268	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}	2775	}
2271		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
2272	# cancel all extension coros	2788	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	2790	%EXT_CORO = ();
2275		2791
2276	# unload all extensions	2792	warn "removing commands";
2277	for (@exts) {	2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	2800	warn "... unloading $pkg";
2279	unload_extension $_;	2801
		2802	if (my $cb = $pkg->can ("unload")) {
		2803	eval {
		2804	$cb->($pkg);
		2805	1
		2806	} or warn "$pkg unloaded, but with errors: $@";
2280	}	2807	}
2281		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
2282	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		2816
2286	warn "removing <$k>";	2817	warn "... unloading $k";
2287	delete $INC{$k};	2818	delete $INC{$k};
2288		2819
2289	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
2291		2822
…		…
2294	}	2825	}
2295		2826
2296	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
2297	}	2828	}
2298		2829
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		2833
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2312		2837
2313	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2314	# and global variables created in xs	2839	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2316		2841
2317	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
2318	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
2319	require cf;	2845	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		2847
2322	# load config and database again	2848	warn "loading config and database again";
2323	cf::cfg_load;	2849	cf::cfg_load;
2324	cf::db_load;
2325		2850
2326	# load extensions
2327	warn "load extensions";	2851	warn "loading extensions";
2328	cf::load_extensions;	2852	cf::load_extensions;
2329		2853
2330	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
2331	warn "reattach";	2855	_global_reattach; # objects, sockets
2332	_global_reattach;	2856	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	2857	reattach $_ for values %MAP;
2334	};	2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2335		2860
2336	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
2337	warn $@;	2865	warn $@;
2338	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2339	exit 1;	2867	exit 1;
2340	}	2868	};
2341		2869
2342	warn "reloaded successfully";	2870	warn "reloaded";
2343	};	2871	};
2344		2872
2345	#############################################################################	2873	our $RELOAD_WATCHER; # used only during reload
2346		2874
2347	unless ($LINK_MAP) {	2875	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
2349		2878
2350	$LINK_MAP->width (41);	2879	$RELOAD_WATCHER ||= Event->timer (
2351	$LINK_MAP->height (41);	2880	reentrant => 0,
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,	2881	after => 0,
		2882	data => WF_AUTOCANCEL,
2360	cb => sub {	2883	cb => sub {
2361	$_[0]->w->cancel;	2884	do_reload_perl;
2362		2885	undef $RELOAD_WATCHER;
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});	2886	},
2381		2887	);
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	2888	}
2387
2388	register "<global>", __PACKAGE__;
2389		2889
2390	register_command "reload" => sub {	2890	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2392		2892
2393	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
2397	}	2896	}
2398	};	2897	};
2399		2898
2400	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2401		2900
		2901	my $bug_warning = 0;
		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
2402	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2403	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
2404	prio => 0,	2929	prio => 0,
2405	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
2406	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2407	cb => sub {	2932	cb => sub {
		2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
		2939	$NOW = $tick_start = Event::time;
		2940
2408	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
		2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2964	};
		2965
2409	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2411		2968
2412	$WAIT_FOR_TICK->broadcast;	2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
2414		2988
2415	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2417		2991
2418	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
2420	},	3001	},
2421	);	3002	);
2422		3003
		3004	{
2423	IO::AIO::max_poll_time $TICK * 0.2;	3005	BDB::max_poll_time $TICK * 0.1;
2424		3006	$BDB_POLL_WATCHER = Event->io (
2425	Event->io (	3007	reentrant => 0,
2426	fd => IO::AIO::poll_fileno,	3008	fd => BDB::poll_fileno,
2427	poll => 'r',	3009	poll => 'r',
2428	prio => 5,	3010	prio => 0,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,	3011	data => WF_AUTOCANCEL,
2435	after => 0,	3012	cb => \&BDB::poll_cb,
2436	interval => 10,	3013	);
2437	cb => sub {	3014	BDB::min_parallel 8;
2438	(Coro::unblock_sub {	3015
2439	write_runtime	3016	BDB::set_sync_prepare {
2440	or warn "ERROR: unable to write runtime file: $!";	3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
2441	})->();	3050	};
2442	},	3051	}
2443	);	3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
		3058	IO::AIO::max_poll_time $TICK * 0.1;
		3059	$AIO_POLL_WATCHER = Event->io (
		3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
		3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2444		3109
2445	END { cf::emergency_save }	3110	END { cf::emergency_save }
2446		3111
2447	1	3112	1
2448		3113

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