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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.185 by root, Fri Jan 19 23:32:52 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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 3.4 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	76	our $NEXT_TICK;
52	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;
53		82
54	our %CFG;	83	our %CFG;
55		84
56	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	86	our $RUNTIME;
58		87
59	our %PLAYER; # all users	88	our %PLAYER; # all users
60	our %MAP; # all maps	89	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		91
67	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		98
70	binmode STDOUT;	99	binmode STDOUT;
71	binmode STDERR;	100	binmode STDERR;
72		101
73	# read virtual server time, if available	102	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
78	}	107	}
79		108
80	mkdir cf::localdir;	109	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		111
86	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
87		115
88	#############################################################################	116	#############################################################################
89		117
90	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
91		119
…		…
98	=item $cf::RUNTIME	126	=item $cf::RUNTIME
99		127
100	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
101	every server tick.	129	every server tick.
102		130
103	=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
104		134
105	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		139
108	=item $cf::NOW	140	=item $cf::NOW
109		141
110	The time of the last (current) server tick.	142	The time of the last (current) server tick.
111		143
112	=item $cf::TICK	144	=item $cf::TICK
113		145
114	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.
115		157
116	=item %cf::CFG	158	=item %cf::CFG
117		159
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
119	from wherever your confdir points to.	161	from wherever your confdir points to.
120		162
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		164
123	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
124	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
125	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.
126	window of cpu time available, or simply to synchronise to the server tick.
127		168
128	=back	169	=back
129		170
130	=cut	171	=cut
131		172
132	BEGIN {	173	BEGIN {
133	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	175	my $msg = join "", @_;
135	utf8::encode $msg;
136		176
137	$msg .= "\n"	177	$msg .= "\n"
138	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
139		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
140	LOG llevError, $msg;	183	LOG llevError, $msg;
141	};	184	};
142	}	185	}
143		186
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		194
151	# 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
152	# within the Safe compartment.	196	# within the Safe compartment.
153	for my $pkg (qw(	197	for my $pkg (qw(
154	cf::global cf::attachable	198	cf::global cf::attachable
…		…
162	}	206	}
163		207
164	$Event::DIED = sub {	208	$Event::DIED = sub {
165	warn "error in event callback: @_";	209	warn "error in event callback: @_";
166	};	210	};
		211
		212	#############################################################################
167		213
168	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
169		215
170	=over 4	216	=over 4
171		217
…		…
190	$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;
191	$d	237	$d
192	} || "[unable to dump $_[0]: '$@']";	238	} || "[unable to dump $_[0]: '$@']";
193	}	239	}
194		240
195	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
196		242
197	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
198		244
199	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
200		246
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
209		248
210	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		250
219	=item cf::lock_wait $string	251	=item cf::lock_wait $string
220		252
221	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
222		254
…		…
228	returned.	260	returned.
229		261
230	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
231	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
232		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
233	=cut	269	=cut
234		270
235	our %LOCK;	271	our %LOCK;
236		272
237	sub lock_wait($) {	273	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
258	}	294	}
259	}	295	}
260		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
261	sub freeze_mainloop {	303	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
263		305
264	my $guard = Coro::guard {	306	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	307	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	308	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
270	$guard	310	$guard
271	}	311	}
272		312
273	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
280		320
281	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
282		322
283	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
284		324
285	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
288		329
289	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
292	fast or be very important.	333	fast or be very important.
…		…
295		336
296	sub sync_job(&) {	337	sub sync_job(&) {
297	my ($job) = @_;	338	my ($job) = @_;
298		339
299	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
300	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
302		345
303	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
315		358
316	while ($busy) {	359	while ($busy) {
317	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
318	}	361	}
319		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
320	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
321	} else {	371	} else {
322	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
323		373
324	$job->()	374	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
344		394
345	$coro	395	$coro
346	}	396	}
347		397
348	sub write_runtime {	398	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		399
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
352	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.
353		404
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		406
358	aio_fsync $fh	407	sub fork_call(&@) {
359	and return;	408	my ($cb, @args) = @_;
360		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) {
361	close $fh	416	close $fh2;
362	or return;
363		417
364	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
365	and return;	419	$res = Coro::Storable::thaw $res;
366		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
367	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
368	}	567	}
369		568
370	=back	569	=back
371		570
372	=cut	571	=cut
…		…
379	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")
380	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
381		580
382	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>
383	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
384	crossfire+).	583	Crossfire TRT).
385		584
386	=over 4	585	=over 4
387		586
388	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
389		588
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
553		752
554	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		757
559	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	759	my $pkg = shift @arg;
561		760
562	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
592	}	791	}
593		792
594	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
595	} else {	794	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	796	}
598		797
599	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
600	}	799	}
601		800
…		…
603	if (ref $_[0]) {	802	if (ref $_[0]) {
604	_object_attach @_;	803	_object_attach @_;
605	} else {	804	} else {
606	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
607	}	806	}
		807	_recalc_want;
608	};	808	};
609		809
610	# all those should be optimised	810	# all those should be optimised
611	sub cf::attachable::detach {	811	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
616	reattach ($obj);	816	reattach ($obj);
617	} else {	817	} else {
618	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
619	}	819	}
		820	_recalc_want;
620	};	821	};
621		822
622	sub cf::attachable::attached {	823	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
624		825
…		…
747	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
748		949
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	954	close $fh;
754		955
755	if (@$objs) {	956	if (@$objs) {
756	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) {
757	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	962	close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
763	}	964	}
764	} else {	965	} else {
765	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
797	or return;	998	or return;
798	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
799	}	1000	}
800		1001
801	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
803	return ($data, $av);	1004	return ($data, $av);
804	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
805		1012
806	#############################################################################	1013	#############################################################################
807	# command handling &c	1014	# command handling &c
808		1015
809	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1030	}
824		1031
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1033
827	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.
828		1035
829	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
830	called.	1037	called.
831		1038
832	=cut	1039	=cut
…		…
867		1074
868	cf::override;	1075	cf::override;
869	},	1076	},
870	);	1077	);
871		1078
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
907	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1084	next unless -r $path;
909	eval {	1085
910	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;
911	1	1143	}
912	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
913	}	1149	};
914	}	1150	}
915		1151
916	#############################################################################	1152	#############################################################################
917		1153
		1154	=back
		1155
918	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
919		1157
920	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
921		1159
922	=cut	1160	=cut
…		…
934	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
935		1173
936	=cut	1174	=cut
937		1175
938	sub playerdir($) {	1176	sub playerdir($) {
939	cf::localdir	1177	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1179	}
945		1180
946	sub path($) {	1181	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1183
949	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
950	}	1185	}
951		1186
952	sub find_active($) {	1187	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
967	my $login = $_[0];	1202	my $login = $_[0];
968		1203
969	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
970		1205
971	$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
972	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
973	or return;	1215	or return;
974	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
975	}	1217	}
976	}	1218	}
…		…
1013		1255
1014	=cut	1256	=cut
1015		1257
1016	sub quit_character {	1258	sub quit_character {
1017	my ($pl) = @_;	1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
1018		1262
1019	$pl->{deny_save} = 1;	1263	$pl->{deny_save} = 1;
1020	$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
1021		1265
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1027	my $path = playerdir $pl;	1271	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1272	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1273	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1274	delete $cf::PLAYER{$pl->ob->name};
1031	$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
1032	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;
1033	}	1297	}
1034		1298
1035	=item cf::player::list_logins	1299	=item cf::player::list_logins
1036		1300
1037	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
1038	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1039		1303
1040	=cut	1304	=cut
1041		1305
1042	sub list_logins {	1306	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1308	or return [];
1045		1309
1046	my @logins;	1310	my @logins;
1047		1311
1048	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1065	=cut	1329	=cut
1066		1330
1067	sub maps($) {	1331	sub maps($) {
1068	my ($pl) = @_;	1332	my ($pl) = @_;
1069		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
1070	my $files = aio_readdir playerdir $pl	1336	my $files = aio_readdir playerdir $pl
1071	or return;	1337	or return;
1072		1338
1073	my @paths;	1339	my @paths;
1074		1340
1075	for (@$files) {	1341	for (@$files) {
1076	utf8::decode $_;	1342	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1343	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1344	next unless /^$PATH_SEP/o;
1079		1345
1080	s/\.map$//;	1346	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1347	}
1083		1348
1084	\@paths	1349	\@paths
1085	}	1350	}
1086		1351
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1088		1353
1089	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1090		1355
1091	=cut	1356	=cut
1092		1357
1093	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1094	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1095		1360
1096	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1097		1362
1098	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1099	}	1364	}
1100		1365
1101	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		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	}
1102		1406
1103	=back	1407	=back
1104
1105		1408
1106	=head3 cf::map	1409	=head3 cf::map
1107		1410
1108	=over 4	1411	=over 4
1109		1412
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1441	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1442	)
1140	}	1443	}
1141		1444
		1445	=item cf::map->register ($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
1142	sub register {	1453	sub register {
1143	my (undef, $regex) = @_;	1454	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1455	my $pkg = caller;
1145		1456
1146	no strict;	1457	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1458	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1459
1149	$EXT_MAP{$pkg} = qr<$regex>;	1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1461	}
1151		1462
1152	# also paths starting with '/'	1463	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1465
1155	sub thawer_merge {	1466	sub thawer_merge {
1156	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1157		1468
1158	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1159	local $self->{path};	1470	local $self->{path};
1160	local $self->{load_path};	1471	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1472
1164	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1165	}	1474	}
1166		1475
1167	sub normalise {	1476	sub normalise {
1168	my ($path, $base) = @_;	1477	my ($path, $base) = @_;
		1478
		1479	$path = "$path"; # make sure its a string
		1480
		1481	$path =~ s/\.map$//;
1169		1482
1170	# map plan:	1483	# map plan:
1171	#	1484	#
1172	# /! non-realised random map exit (special hack!)	1485	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1486	# {... are special paths that are not being touched
…		…
1201		1514
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1516
1204	$path = normalise $path, $base;	1517	$path = normalise $path, $base;
1205		1518
1206	for my $pkg (keys %EXT_MAP) {	1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1521	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1522	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1523	$self->init; # pass $1 etc.
1211	return $self;	1524	return $self;
1212	}	1525	}
1213	}	1526	}
1214		1527
1215	Carp::carp "unable to resolve path '$path'.";	1528	Carp::carp "unable to resolve path '$path' (base '$base').";
1216	()	1529	()
1217	}	1530	}
1218		1531
1219	sub init {	1532	sub init {
1220	my ($self) = @_;	1533	my ($self) = @_;
…		…
1235		1548
1236	# the original (read-only) location	1549	# the original (read-only) location
1237	sub load_path {	1550	sub load_path {
1238	my ($self) = @_;	1551	my ($self) = @_;
1239		1552
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1241	}	1554	}
1242		1555
1243	# the temporary/swap location	1556	# the temporary/swap location
1244	sub save_path {	1557	sub save_path {
1245	my ($self) = @_;	1558	my ($self) = @_;
1246		1559
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1249	}	1562	}
1250		1563
1251	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1252	sub uniq_path {	1565	sub uniq_path {
1253	my ($self) = @_;	1566	my ($self) = @_;
1254		1567
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1257	}	1570	}
1258		1571
1259	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1260	# all maps in C++...	1573	# all maps in C++...
1261	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1263		1576
1264	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1266	}	1579	}
1267		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1268	sub unlink_save {	1589	sub unlink_save {
1269	my ($self) = @_;	1590	my ($self) = @_;
1270		1591
1271	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1596
1276	sub load_header_from($) {	1597	sub load_header_from($) {
1277	my ($self, $path) = @_;	1598	my ($self, $path) = @_;
1278		1599
1279	utf8::encode $path;	1600	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
1281	or return;	1602	# or return;
1282		1603
1283	$self->_load_header ($path)	1604	$self->_load_header ($path)
1284	or return;	1605	or return;
1285		1606
1286	$self->{load_path} = $path;	1607	$self->{load_path} = $path;
1287		1608
1288	1	1609	1
1289	}	1610	}
1290		1611
1291	sub load_orig {	1612	sub load_header_orig {
1292	my ($self) = @_;	1613	my ($self) = @_;
1293		1614
1294	$self->load_header_from ($self->load_path)	1615	$self->load_header_from ($self->load_path)
1295	}	1616	}
1296		1617
1297	sub load_temp {	1618	sub load_header_temp {
1298	my ($self) = @_;	1619	my ($self) = @_;
1299		1620
1300	$self->load_header_from ($self->save_path)	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	$self->instantiate;
1301	}	1641	}
1302		1642
1303	sub load_header {	1643	sub load_header {
1304	my ($self) = @_;	1644	my ($self) = @_;
1305		1645
1306	if ($self->load_temp) {	1646	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1647	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1648	} else {
1313	$self->load_orig	1649	$self->load_header_orig
1314	or return;	1650	or return;
1315		1651	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1652	}
		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
1321		1659
1322	1	1660	1
1323	}	1661	}
1324		1662
1325	sub find;	1663	sub find;
…		…
1338	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1339		1677
1340	$map->load_header	1678	$map->load_header
1341	or return;	1679	or return;
1342		1680
1343	if ($map->should_reset) {	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1344	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1345	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1346	$map->reset;	1684	$map->reset;
1347	undef $guard;	1685	undef $guard;
1348	$map = find $path	1686	return find $path;
1349	or return;
1350	}	1687	}
1351		1688
1352	$cf::MAP{$path} = $map	1689	$cf::MAP{$path} = $map
1353	}	1690	}
1354	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1355		1695
1356	sub load {	1696	sub load {
1357	my ($self) = @_;	1697	my ($self) = @_;
1358		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
1359	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1360	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1361		1705
1362	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1363		1707
1364	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1365		1709
1366	$self->alloc;	1710	$self->alloc;
1367	$self->_load_objects ($self->{load_path}, 1)
1368	or return;
1369		1711
1370	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1712	$self->pre_load;
1371	if delete $self->{load_original};
1372
1373	if (my $uniq = $self->uniq_path) {
1374	utf8::encode $uniq;
1375	if (aio_open $uniq, O_RDONLY, 0) {
1376	$self->clear_unique_items;
1377	$self->_load_objects ($uniq, 0);
1378	}
1379	}
1380
1381	Coro::cede;
1382
1383	# now do the right thing for maps
1384	$self->link_multipart_objects;
1385
1386	unless ($self->{deny_activate}) {
1387	$self->decay_objects;
1388	$self->fix_auto_apply;
1389	$self->update_buttons;
1390	Coro::cede;	1713	Coro::cede;
1391	$self->set_darkness_map;	1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
		1726	}
		1727	}
		1728
		1729	Coro::cede;
		1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
1392	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1393	unless $self->difficulty;	1733	unless $self->difficulty;
1394	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($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;
1395	$self->activate;	1743	$self->activate;
1396	}	1744	}
1397		1745
1398	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
		1747	}
		1748
		1749	$self->post_load;
1399	}	1750	}
1400		1751
1401	sub customise_for {	1752	sub customise_for {
1402	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1403		1754
1404	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1405	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1406		1760
1407	$self	1761	$self
1408	}	1762	}
1409		1763
1410	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
…		…
1466	delete $MAP_PREFETCH{$path};	1820	delete $MAP_PREFETCH{$path};
1467	}	1821	}
1468	}	1822	}
1469	undef $MAP_PREFETCHER;	1823	undef $MAP_PREFETCHER;
1470	};	1824	};
		1825	$MAP_PREFETCHER->prio (6);
1471		1826
1472	()	1827	()
1473	}	1828	}
1474		1829
1475	sub save {	1830	sub save {
…		…
1520		1875
1521	sub reset_at {	1876	sub reset_at {
1522	my ($self) = @_;	1877	my ($self) = @_;
1523		1878
1524	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1525	return 1e99 if $self->isa ("ext::map_per_player");#d#
1526	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1527		1881
1528	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1529	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1530		1884
…		…
1541	my ($self) = @_;	1895	my ($self) = @_;
1542		1896
1543	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		1898
1545	return if $self->players;	1899	return if $self->players;
1546	return if $self->isa ("ext::map_per_player");#d#
1547		1900
1548	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	}
1549		1912
1550	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
1551		1914
1552	$self->in_memory (cf::MAP_SWAPPED);
1553	$self->clear;	1915	$self->clear;
1554		1916
1555	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1556		1918
1557	$self->unlink_save;	1919	$self->unlink_save;
…		…
1576	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1577		1939
1578	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1579	}	1941	}
1580		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		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
1581	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1582		1980
1583	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1584	instantiated unique items. May block.	1982	instantiated unique items. May block.
1585		1983
1586	=cut	1984	=cut
1587		1985
1588	sub unique_maps() {	1986	sub unique_maps() {
1589	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1590	or return;	1988	map {
1591
1592	my @paths;
1593
1594	for (@$files) {
1595	utf8::decode $_;	1989	utf8::decode $_;
1596	next if /\.pst$/;
1597	next unless /^$PATH_SEP/o;
1598
1599	s/\.map$//;	1990	/\.map$/
1600	push @paths, $_;	1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
1601	}	1994	]
1602
1603	\@paths
1604	}	1995	}
1605		1996
1606	package cf;	1997	package cf;
1607		1998
1608	=back	1999	=back
…		…
1699	=cut	2090	=cut
1700		2091
1701	sub link_map {	2092	sub link_map {
1702	unless ($LINK_MAP) {	2093	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2094	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2095	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2096	$LINK_MAP->load;
1706	}	2097	}
1707		2098
1708	$LINK_MAP	2099	$LINK_MAP
1709	}	2100	}
…		…
1714	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
1715		2106
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2108
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2110	if $self->map && $self->map->{path} ne "{link}";
1720		2111
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2113	}
1723		2114
1724	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
1726		2119
1727	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1728		2121
1729	unless ($map) {	2122	unless ($map) {
1730	# restore original map position	2123	# restore original map position
…		…
1748	$map->load;	2141	$map->load;
1749	$map->load_diag;	2142	$map->load_diag;
1750		2143
1751	return unless $self->contr->active;	2144	return unless $self->contr->active;
1752	$self->activate_recursive;	2145	$self->activate_recursive;
		2146
		2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1754	}	2149	}
1755		2150
1756	cf::player->attach (
1757	on_logout => sub {
1758	my ($pl) = @_;
1759
1760	# abort map switching before logout
1761	if ($pl->ob->{_link_pos}) {
1762	cf::sync_job {
1763	$pl->ob->leave_link
1764	};
1765	}
1766	},
1767	on_login => sub {
1768	my ($pl) = @_;
1769
1770	# try to abort aborted map switching on player login :)
1771	# should happen only on crashes
1772	if ($pl->ob->{_link_pos}) {
1773	$pl->ob->enter_link;
1774	(async {
1775	# we need this sleep as the login has a concurrent enter_exit running
1776	# and this sleep increases chances of the player not ending up in scorn
1777	$pl->ob->reply (undef,
1778	"There was an internal problem at your last logout, "
1779	. "the server will try to bring you to your intended destination in a second.",
1780	cf::NDI_RED);
1781	Coro::Timer::sleep 1;
1782	$pl->ob->leave_link;
1783	})->prio (2);
1784	}
1785	},
1786	);
1787
1788	=item $player_object->goto ($path, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1789		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
1790	=cut	2158	=cut
		2159
		2160	our $GOTOGEN;
1791		2161
1792	sub cf::object::player::goto {	2162	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2167
1795	$self->enter_link;	2168	$self->enter_link;
1796		2169
1797	(async {	2170	(async {
		2171	my $map = eval {
1798	my $map = cf::map::find $path;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
1800		2176	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2177	} else {
1802	# if $map;
1803
1804	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
1805		2180
		2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
		2187	}
		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1806	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1807	})->prio (1);	2193	})->prio (1);
1808	}	2194	}
1809		2195
1810	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
1811		2197
…		…
1840	# that depends on the exit object	2226	# that depends on the exit object
1841		2227
1842	my $rmp = parse_random_map_params $exit->msg;	2228	my $rmp = parse_random_map_params $exit->msg;
1843		2229
1844	if ($exit->map) {	2230	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2231	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2232	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2233	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2234	$rmp->{origin_y} = $exit->y;
1849	}	2235	}
1850		2236
1851	$rmp->{random_seed} ||= $exit->random_seed;	2237	$rmp->{random_seed} ||= $exit->random_seed;
1852		2238
1853	my $data = cf::to_json $rmp;	2239	my $data = cf::to_json $rmp;
1854	my $md5 = Digest::MD5::md5_hex $data;	2240	my $md5 = Digest::MD5::md5_hex $data;
1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2241	my $meta = "$RANDOMDIR/$md5.meta";
1856		2242
1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1858	aio_write $fh, 0, (length $data), $data, 0;	2244	aio_write $fh, 0, (length $data), $data, 0;
1859	undef $fh;	2245	undef $fh;
1860	aio_rename "$meta~", $meta;	2246	aio_rename "$meta~", $meta;
…		…
1867	sub cf::object::player::enter_exit {	2253	sub cf::object::player::enter_exit {
1868	my ($self, $exit) = @_;	2254	my ($self, $exit) = @_;
1869		2255
1870	return unless $self->type == cf::PLAYER;	2256	return unless $self->type == cf::PLAYER;
1871		2257
		2258	if ($exit->slaying eq "/!") {
		2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
		2262	cf::sync_job { prepare_random_map $exit };
		2263	}
		2264
		2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2266	my $hp = $exit->stats->hp;
		2267	my $sp = $exit->stats->sp;
		2268
1872	$self->enter_link;	2269	$self->enter_link;
1873		2270
1874	(async {	2271	(async {
1875	$self->deactivate_recursive; # just to be sure	2272	$self->deactivate_recursive; # just to be sure
1876	unless (eval {	2273	unless (eval {
1877	prepare_random_map $exit	2274	$self->goto ($slaying, $hp, $sp);
1878	if $exit->slaying eq "/!";
1879
1880	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1881	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1882		2275
1883	1;	2276	1;
1884	}) {	2277	}) {
1885	$self->message ("Something went wrong deep within the crossfire server. "	2278	$self->message ("Something went wrong deep within the crossfire server. "
1886	. "I'll try to bring you back to the map you were before. "	2279	. "I'll try to bring you back to the map you were before. "
1887	. "Please report this to the dungeon master!",	2280	. "Please report this to the dungeon master!",
1888	cf::NDI_UNIQUE | cf::NDI_RED);	2281	cf::NDI_UNIQUE | cf::NDI_RED);
1889		2282
1890	warn "ERROR in enter_exit: $@";	2283	warn "ERROR in enter_exit: $@";
1891	$self->leave_link;	2284	$self->leave_link;
1892	}	2285	}
1893	})->prio (1);	2286	})->prio (1);
…		…
1906		2299
1907	sub cf::client::send_drawinfo {	2300	sub cf::client::send_drawinfo {
1908	my ($self, $text, $flags) = @_;	2301	my ($self, $text, $flags) = @_;
1909		2302
1910	utf8::encode $text;	2303	utf8::encode $text;
1911	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1912	}	2305	}
1913		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
1914		2319
1915	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
1916		2321
1917	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
1918	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1947	# get handled first	2352	# get handled first
1948	my $queue = delete $ns->{query_queue}	2353	my $queue = delete $ns->{query_queue}
1949	or return; # be conservative, not sure how that can happen, but we saw a crash here	2354	or return; # be conservative, not sure how that can happen, but we saw a crash here
1950		2355
1951	(shift @$queue)->[1]->($msg);	2356	(shift @$queue)->[1]->($msg);
		2357	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1952		2358
1953	push @{ $ns->{query_queue} }, @$queue;	2359	push @{ $ns->{query_queue} }, @$queue;
1954		2360
1955	if (@{ $ns->{query_queue} } == @$queue) {	2361	if (@{ $ns->{query_queue} } == @$queue) {
1956	if (@$queue) {	2362	if (@$queue) {
…		…
2014		2420
2015	# here we export the classes and methods available to script code	2421	# here we export the classes and methods available to script code
2016		2422
2017	=pod	2423	=pod
2018		2424
2019	The following fucntions and emthods are available within a safe environment:	2425	The following functions and methods are available within a safe environment:
2020		2426
2021	cf::object contr pay_amount pay_player map	2427	cf::object contr pay_amount pay_player map
2022	cf::object::player player	2428	cf::object::player player
2023	cf::player peaceful	2429	cf::player peaceful
2024	cf::map trigger	2430	cf::map trigger
…		…
2105	=back	2511	=back
2106		2512
2107	=cut	2513	=cut
2108		2514
2109	#############################################################################	2515	#############################################################################
		2516	# the server's init and main functions
2110		2517
2111	=head2 EXTENSION DATABASE SUPPORT	2518	sub load_facedata($) {
		2519	my ($path) = @_;
2112		2520
2113	Crossfire maintains a very simple database for extension use. It can	2521	warn "loading facedata from $path\n";
2114	currently store anything that can be serialised using Storable, which
2115	excludes objects.
2116		2522
2117	The parameter C<$family> should best start with the name of the extension	2523	my $facedata;
2118	using it, it should be unique.	2524	0 < aio_load $path, $facedata
		2525	or die "$path: $!";
2119		2526
2120	=over 4	2527	$facedata = Coro::Storable::thaw $facedata;
2121		2528
2122	=item $hashref = cf::db_get $family	2529	$facedata->{version} == 2
		2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
2123		2531
2124	Return a hashref for use by the extension C<$family>, which can be
2125	modified. After modifications, you have to call C<cf::db_dirty> or
2126	C<cf::db_sync>.
2127
2128	=item $value = cf::db_get $family => $key
2129
2130	Returns a single value from the database
2131
2132	=item cf::db_put $family => $hashref
2133
2134	Stores the given family hashref into the database. Updates are delayed, if
2135	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2136
2137	=item cf::db_put $family => $key => $value
2138
2139	Stores the given C<$value> in the family hash. Updates are delayed, if you
2140	want the data to be synced to disk immediately, use C<cf::db_sync>.
2141
2142	=item cf::db_dirty
2143
2144	Marks the database as dirty, to be updated at a later time.
2145
2146	=item cf::db_sync
2147
2148	Immediately write the database to disk I<if it is dirty>.
2149
2150	=cut
2151
2152	our $DB;
2153
2154	{
2155	my $path = cf::localdir . "/database.pst";
2156
2157	sub db_load() {
2158	$DB = stat $path ? Storable::retrieve $path : { };
2159	}	2532	{
		2533	my $faces = $facedata->{faceinfo};
2160		2534
2161	my $pid;	2535	while (my ($face, $info) = each %$faces) {
2162		2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	sub db_save() {	2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2164	waitpid $pid, 0 if $pid;	2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2165	if (0 == ($pid = fork)) {	2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2166	$DB->{_meta}{version} = 1;	2540	Coro::cede;
2167	Storable::nstore $DB, "$path~";
2168	rename "$path~", $path;
2169	cf::_exit 0 if defined $pid;
2170	}
2171	}
2172
2173	my $dirty;
2174
2175	sub db_sync() {
2176	db_save if $dirty;
2177	undef $dirty;
2178	}
2179
2180	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2181	db_sync;
2182	});
2183
2184	sub db_dirty() {
2185	$dirty = 1;
2186	$idle->start;
2187	}
2188
2189	sub db_get($;$) {
2190	@_ >= 2
2191	? $DB->{$_[0]}{$_[1]}
2192	: ($DB->{$_[0]} ||= { })
2193	}
2194
2195	sub db_put($$;$) {
2196	if (@_ >= 3) {
2197	$DB->{$_[0]}{$_[1]} = $_[2];
2198	} else {
2199	$DB->{$_[0]} = $_[1];
2200	}
2201	db_dirty;
2202	}
2203
2204	cf::global->attach (
2205	prio => 10000,
2206	on_cleanup => sub {
2207	db_sync;
2208	},	2541	}
2209	);
2210	}
2211		2542
2212	#############################################################################	2543	while (my ($face, $info) = each %$faces) {
2213	# the server's main()	2544	next unless $info->{smooth};
		2545	my $idx = cf::face::find $face
		2546	or next;
		2547	if (my $smooth = cf::face::find $info->{smooth}) {
		2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2549	} else {
		2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2551	}
		2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
		2565	}
		2566
		2567	1
		2568	}
		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
		2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
		2590	sub reload_resources {
		2591	warn "reloading resource files...\n";
		2592
		2593	reload_regions;
		2594	reload_facedata;
		2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
		2600	}
		2601
		2602	sub init {
		2603	reload_resources;
		2604	}
2214		2605
2215	sub cfg_load {	2606	sub cfg_load {
2216	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
2217	or return;	2608	or return;
2218		2609
2219	local $/;	2610	local $/;
2220	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
2221		2612
…		…
2241	Event::one_event;	2632	Event::one_event;
2242	})->prio (Coro::PRIO_MAX);	2633	})->prio (Coro::PRIO_MAX);
2243	};	2634	};
2244		2635
2245	cfg_load;	2636	cfg_load;
2246	db_load;	2637	db_init;
2247	load_extensions;	2638	load_extensions;
2248		2639
2249	$TICK_WATCHER->start;	2640	$TICK_WATCHER->start;
2250	Event::loop;	2641	Event::loop;
2251	}	2642	}
…		…
2255		2646
2256	# install some emergency cleanup handlers	2647	# install some emergency cleanup handlers
2257	BEGIN {	2648	BEGIN {
2258	for my $signal (qw(INT HUP TERM)) {	2649	for my $signal (qw(INT HUP TERM)) {
2259	Event->signal (	2650	Event->signal (
		2651	reentrant => 0,
2260	data => WF_AUTOCANCEL,	2652	data => WF_AUTOCANCEL,
2261	signal => $signal,	2653	signal => $signal,
		2654	prio => 0,
2262	cb => sub {	2655	cb => sub {
2263	cf::cleanup "SIG$signal";	2656	cf::cleanup "SIG$signal";
2264	},	2657	},
2265	);	2658	);
2266	}	2659	}
		2660	}
		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
2267	}	2698	}
2268		2699
2269	sub emergency_save() {	2700	sub emergency_save() {
2270	my $freeze_guard = cf::freeze_mainloop;	2701	my $freeze_guard = cf::freeze_mainloop;
2271		2702
…		…
2288	my $map = $cf::MAP{$path} or next;	2719	my $map = $cf::MAP{$path} or next;
2289	$map->valid or next;	2720	$map->valid or next;
2290	$map->save;	2721	$map->save;
2291	}	2722	}
2292	warn "end emergency map save\n";	2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
2293	};	2728	};
2294		2729
2295	warn "leave emergency perl save\n";	2730	warn "leave emergency perl save\n";
2296	}	2731	}
2297		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
2298	sub reload() {	2740	sub do_reload_perl() {
2299	# can/must only be called in main	2741	# can/must only be called in main
2300	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2301	warn "can only reload from main coroutine";	2743	warn "can only reload from main coroutine";
2302	return;	2744	return;
2303	}	2745	}
2304		2746
2305	warn "reloading...";	2747	warn "reloading...";
2306		2748
2307	warn "cancelling server ticker";	2749	warn "entering sync_job";
2308	$TICK_WATCHER->cancel;
2309		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
2310	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
2311		2755
2312	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
2313	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
2314
2315	warn "syncing database to disk";
2316	cf::db_sync;
2317		2760
2318	warn "cancelling all WF_AUTOCANCEL watchers";	2761	warn "cancelling all WF_AUTOCANCEL watchers";
2319	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
2320	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2321	}	2764	}
2322		2765
2323	warn "flushing outstanding aio requests";	2766	warn "flushing outstanding aio requests";
2324	for (;;) {	2767	for (;;) {
		2768	BDB::flush;
2325	IO::AIO::flush;	2769	IO::AIO::flush;
2326	Coro::cede;	2770	Coro::cede;
2327	last unless IO::AIO::nreqs;	2771	last unless IO::AIO::nreqs || BDB::nreqs;
2328	warn "iterate...";	2772	warn "iterate...";
2329	}	2773	}
		2774
		2775	++$RELOAD;
2330		2776
2331	warn "cancelling all extension coros";	2777	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	2779	%EXT_CORO = ();
2334		2780
…		…
2374	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		2822
2377	warn "unloading cf.pm \"a bit\"";	2823	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2379		2826
2380	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2381	# and global variables created in xs	2828	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2383		2830
…		…
2387	require cf;	2834	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2836
2390	warn "loading config and database again";	2837	warn "loading config and database again";
2391	cf::cfg_load;	2838	cf::cfg_load;
2392	cf::db_load;
2393		2839
2394	warn "loading extensions";	2840	warn "loading extensions";
2395	cf::load_extensions;	2841	cf::load_extensions;
2396		2842
2397	warn "reattaching attachments to objects/players";	2843	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2844	_global_reattach; # objects, sockets
2399	warn "reattaching attachments to maps";	2845	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
2401		2849
2402	warn "restarting server ticker";	2850	warn "leaving sync_job";
2403		2851
2404	$TICK_WATCHER->start;	2852	1
2405	};	2853	} or do {
2406
2407	if ($@) {
2408	warn $@;	2854	warn $@;
2409	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
2410	exit 1;	2856	exit 1;
2411	}	2857	};
2412		2858
2413	warn "reloaded";	2859	warn "reloaded";
2414	};	2860	};
2415		2861
2416	our $RELOAD_WATCHER; # used only during reload	2862	our $RELOAD_WATCHER; # used only during reload
2417		2863
		2864	sub reload_perl() {
		2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
		2876	);
		2877	}
		2878
2418	register_command "reload" => sub {	2879	register_command "reload" => sub {
2419	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2420		2881
2421	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2422	$who->message ("reloading server.");	2883	$who->message ("reloading server.");
2423		2884	async { reload_perl };
2424	# doing reload synchronously and two reloads happen back-to-back,
2425	# coro crashes during coro_state_free->destroy here.
2426
2427	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2428	reload;
2429	undef $RELOAD_WATCHER;
2430	});
2431	}	2885	}
2432	};	2886	};
2433		2887
2434	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2435		2889
2436	my $bug_warning = 0;	2890	my $bug_warning = 0;
2437		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2438	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2439	reentrant => 0,	2916	reentrant => 0,
2440	parked => 1,	2917	parked => 1,
2441	prio => 0,	2918	prio => 0,
2442	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
…		…
2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2447	unless ++$bug_warning > 10;	2924	unless ++$bug_warning > 10;
2448	return;	2925	return;
2449	}	2926	}
2450		2927
2451	$NOW = Event::time;	2928	$NOW = $tick_start = Event::time;
2452		2929
2453	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
		2954
2454	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2455	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2456		2957
2457	$WAIT_FOR_TICK->broadcast;	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2458	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
2459		2977
2460	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2462		2980
2463	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2464	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2465	},	2990	},
2466	);	2991	);
2467		2992
		2993	{
		2994	BDB::max_poll_time $TICK * 0.1;
		2995	$BDB_POLL_WATCHER = Event->io (
		2996	reentrant => 0,
		2997	fd => BDB::poll_fileno,
		2998	poll => 'r',
		2999	prio => 0,
		3000	data => WF_AUTOCANCEL,
		3001	cb => \&BDB::poll_cb,
		3002	);
		3003	BDB::min_parallel 8;
		3004
		3005	BDB::set_sync_prepare {
		3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
		3039	};
		3040	}
		3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
2468	IO::AIO::max_poll_time $TICK * 0.2;	3047	IO::AIO::max_poll_time $TICK * 0.1;
2469
2470	$AIO_POLL_WATCHER = Event->io (	3048	$AIO_POLL_WATCHER = Event->io (
2471	fd => IO::AIO::poll_fileno,	3049	reentrant => 0,
2472	poll => 'r',
2473	prio => 5,
2474	data => WF_AUTOCANCEL,
2475	cb => \&IO::AIO::poll_cb,
2476	);
2477
2478	$WRITE_RUNTIME_WATCHER = Event->timer (
2479	data => WF_AUTOCANCEL,	3050	data => WF_AUTOCANCEL,
2480	after => 1,	3051	fd => IO::AIO::poll_fileno,
2481	interval => 10,	3052	poll => 'r',
2482	cb => Coro::unblock_sub {	3053	prio => 6,
2483	write_runtime	3054	cb => \&IO::AIO::poll_cb,
2484	or warn "ERROR: unable to write runtime file: $!";	3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
2485	},	3093	}
2486	);	3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
2487		3098
2488	END { cf::emergency_save }	3099	END { cf::emergency_save }
2489		3100
2490	1	3101	1
2491		3102

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