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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 1.282 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 3.4 ();	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
…		…
1654		2045
1655	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1656		2047
1657	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1658	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1659	} 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 {
1660	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1661	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1662	}	2064	}
1663	}	2065	}
1664		2066
1665	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1666		2068
…		…
1699	=cut	2101	=cut
1700		2102
1701	sub link_map {	2103	sub link_map {
1702	unless ($LINK_MAP) {	2104	unless ($LINK_MAP) {
1703	$LINK_MAP = cf::map::find "{link}"	2105	$LINK_MAP = cf::map::find "{link}"
1704	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1705	$LINK_MAP->load;	2107	$LINK_MAP->load;
1706	}	2108	}
1707		2109
1708	$LINK_MAP	2110	$LINK_MAP
1709	}	2111	}
…		…
1714	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1715		2117
1716	return if UNIVERSAL::isa $self->map, "ext::map_link";	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1717		2119
1718	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1719	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1720		2122
1721	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1722	}	2124	}
1723		2125
1724	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1725	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1726		2130
1727	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1728		2132
1729	unless ($map) {	2133	unless ($map) {
1730	# restore original map position	2134	# restore original map position
…		…
1748	$map->load;	2152	$map->load;
1749	$map->load_diag;	2153	$map->load_diag;
1750		2154
1751	return unless $self->contr->active;	2155	return unless $self->contr->active;
1752	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1753	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1754	}	2160	}
1755		2161
1756	cf::player->attach (
1757	on_logout => sub {
1758	my ($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)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1789		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
1790	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1791		2172
1792	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1793	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1794		2178
1795	$self->enter_link;	2179	$self->enter_link;
1796		2180
1797	(async {	2181	(async {
		2182	my $map = eval {
1798	my $map = cf::map::find $path;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1799	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
1800		2187	$map = $check->($map) if $check && $map;
1801	# warn "entering ", $map->path, " at ($x, $y)\n"	2188	} else {
1802	# if $map;
1803
1804	$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	}
1805		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};
1806	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1807	})->prio (1);	2204	})->prio (1);
1808	}	2205	}
1809		2206
1810	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1811		2208
…		…
1840	# that depends on the exit object	2237	# that depends on the exit object
1841		2238
1842	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1843		2240
1844	if ($exit->map) {	2241	if ($exit->map) {
1845	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1846	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1847	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1848	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1849	}	2246	}
1850		2247
1851	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1852		2249
1853	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1854	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
1855	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2252	my $meta = "$RANDOMDIR/$md5.meta";
1856		2253
1857	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1858	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
1859	undef $fh;	2256	undef $fh;
1860	aio_rename "$meta~", $meta;	2257	aio_rename "$meta~", $meta;
…		…
1867	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1868	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1869		2266
1870	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
1871		2268
		2269	if ($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;
		2279
1872	$self->enter_link;	2280	$self->enter_link;
1873		2281
1874	(async {	2282	(async {
1875	$self->deactivate_recursive; # just to be sure	2283	$self->deactivate_recursive; # just to be sure
1876	unless (eval {	2284	unless (eval {
1877	prepare_random_map $exit	2285	$self->goto ($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		2286
1883	1;	2287	1;
1884	}) {	2288	}) {
1885	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1886	. "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. "
1887	. "Please report this to the dungeon master!",	2291	. "Please report this to the dungeon master!",
1888	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1889		2293
1890	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1891	$self->leave_link;	2295	$self->leave_link;
1892	}	2296	}
1893	})->prio (1);	2297	})->prio (1);
…		…
1906		2310
1907	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1908	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1909		2313
1910	utf8::encode $text;	2314	utf8::encode $text;
1911	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1912	}	2316	}
1913		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	}
1914		2330
1915	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1916		2332
1917	Queues a query to the client, calling the given callback with	2333	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>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1947	# get handled first	2363	# get handled first
1948	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
1949	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
1950		2366
1951	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1952		2369
1953	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1954		2371
1955	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1956	if (@$queue) {	2373	if (@$queue) {
…		…
2014		2431
2015	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
2016		2433
2017	=pod	2434	=pod
2018		2435
2019	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
2020		2437
2021	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
2022	cf::object::player player	2439	cf::object::player player
2023	cf::player peaceful	2440	cf::player peaceful
2024	cf::map trigger	2441	cf::map trigger
…		…
2105	=back	2522	=back
2106		2523
2107	=cut	2524	=cut
2108		2525
2109	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
2110		2528
2111	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
2112		2531
2113	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
2114	currently store anything that can be serialised using Storable, which
2115	excludes objects.
2116		2533
2117	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
2118	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
2119		2537
2120	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
2121		2539
2122	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
2123		2542
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	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
2160		2545
2161	my $pid;	2546	while (my ($face, $info) = each %$faces) {
2162		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2164	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2165	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2166	$DB->{_meta}{version} = 1;	2551	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]} = $_[1];
2200	}
2201	db_dirty;
2202	}
2203
2204	cf::global->attach (
2205	prio => 10000,
2206	on_cleanup => sub {
2207	db_sync;
2208	},	2552	}
2209	);
2210	}
2211		2553
2212	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
2213	# 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	}
2214		2616
2215	sub cfg_load {	2617	sub cfg_load {
2216	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
2217	or return;	2619	or return;
2218		2620
2219	local $/;	2621	local $/;
2220	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
2221		2623
…		…
2241	Event::one_event;	2643	Event::one_event;
2242	})->prio (Coro::PRIO_MAX);	2644	})->prio (Coro::PRIO_MAX);
2243	};	2645	};
2244		2646
2245	cfg_load;	2647	cfg_load;
2246	db_load;	2648	db_init;
2247	load_extensions;	2649	load_extensions;
2248		2650
2249	$TICK_WATCHER->start;	2651	$TICK_WATCHER->start;
2250	Event::loop;	2652	Event::loop;
2251	}	2653	}
…		…
2255		2657
2256	# install some emergency cleanup handlers	2658	# install some emergency cleanup handlers
2257	BEGIN {	2659	BEGIN {
2258	for my $signal (qw(INT HUP TERM)) {	2660	for my $signal (qw(INT HUP TERM)) {
2259	Event->signal (	2661	Event->signal (
		2662	reentrant => 0,
2260	data => WF_AUTOCANCEL,	2663	data => WF_AUTOCANCEL,
2261	signal => $signal,	2664	signal => $signal,
		2665	prio => 0,
2262	cb => sub {	2666	cb => sub {
2263	cf::cleanup "SIG$signal";	2667	cf::cleanup "SIG$signal";
2264	},	2668	},
2265	);	2669	);
2266	}	2670	}
		2671	}
		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
2267	}	2709	}
2268		2710
2269	sub emergency_save() {	2711	sub emergency_save() {
2270	my $freeze_guard = cf::freeze_mainloop;	2712	my $freeze_guard = cf::freeze_mainloop;
2271		2713
…		…
2288	my $map = $cf::MAP{$path} or next;	2730	my $map = $cf::MAP{$path} or next;
2289	$map->valid or next;	2731	$map->valid or next;
2290	$map->save;	2732	$map->save;
2291	}	2733	}
2292	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 $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
2293	};	2739	};
2294		2740
2295	warn "leave emergency perl save\n";	2741	warn "leave emergency perl save\n";
2296	}	2742	}
2297		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2298	sub reload() {	2751	sub do_reload_perl() {
2299	# can/must only be called in main	2752	# can/must only be called in main
2300	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2301	warn "can only reload from main coroutine";	2754	warn "can only reload from main coroutine";
2302	return;	2755	return;
2303	}	2756	}
2304		2757
2305	warn "reloading...";	2758	warn "reloading...";
2306		2759
2307	warn "cancelling server ticker";	2760	warn "entering sync_job";
2308	$TICK_WATCHER->cancel;
2309		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2310	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2311		2766
2312	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
2313	# 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
2314
2315	warn "syncing database to disk";
2316	cf::db_sync;
2317		2771
2318	warn "cancelling all WF_AUTOCANCEL watchers";	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2319	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2320	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2321	}	2775	}
2322		2776
2323	warn "flushing outstanding aio requests";	2777	warn "flushing outstanding aio requests";
2324	for (;;) {	2778	for (;;) {
		2779	BDB::flush;
2325	IO::AIO::flush;	2780	IO::AIO::flush;
2326	Coro::cede;	2781	Coro::cede;
2327	last unless IO::AIO::nreqs;	2782	last unless IO::AIO::nreqs || BDB::nreqs;
2328	warn "iterate...";	2783	warn "iterate...";
2329	}	2784	}
		2785
		2786	++$RELOAD;
2330		2787
2331	warn "cancelling all extension coros";	2788	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	2790	%EXT_CORO = ();
2334		2791
…		…
2374	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2375	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);
2376		2833
2377	warn "unloading cf.pm \"a bit\"";	2834	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2379		2837
2380	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2381	# and global variables created in xs	2839	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2383		2841
…		…
2387	require cf;	2845	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		2847
2390	warn "loading config and database again";	2848	warn "loading config and database again";
2391	cf::cfg_load;	2849	cf::cfg_load;
2392	cf::db_load;
2393		2850
2394	warn "loading extensions";	2851	warn "loading extensions";
2395	cf::load_extensions;	2852	cf::load_extensions;
2396		2853
2397	warn "reattaching attachments to objects/players";	2854	warn "reattaching attachments to objects/players";
2398	_global_reattach;	2855	_global_reattach; # objects, sockets
2399	warn "reattaching attachments to maps";	2856	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2401		2860
2402	warn "restarting server ticker";	2861	warn "leaving sync_job";
2403		2862
2404	$TICK_WATCHER->start;	2863	1
2405	};	2864	} or do {
2406
2407	if ($@) {
2408	warn $@;	2865	warn $@;
2409	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2410	exit 1;	2867	exit 1;
2411	}	2868	};
2412		2869
2413	warn "reloaded";	2870	warn "reloaded";
2414	};	2871	};
2415		2872
2416	our $RELOAD_WATCHER; # used only during reload	2873	our $RELOAD_WATCHER; # used only during reload
2417		2874
		2875	sub reload_perl() {
		2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
		2878
		2879	$RELOAD_WATCHER ||= Event->timer (
		2880	reentrant => 0,
		2881	after => 0,
		2882	data => WF_AUTOCANCEL,
		2883	cb => sub {
		2884	do_reload_perl;
		2885	undef $RELOAD_WATCHER;
		2886	},
		2887	);
		2888	}
		2889
2418	register_command "reload" => sub {	2890	register_command "reload" => sub {
2419	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2420		2892
2421	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2422	$who->message ("reloading server.");	2894	$who->message ("reloading server.");
2423		2895	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	}	2896	}
2432	};	2897	};
2433		2898
2434	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2435		2900
2436	my $bug_warning = 0;	2901	my $bug_warning = 0;
2437		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;
2438	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2439	reentrant => 0,	2927	reentrant => 0,
2440	parked => 1,	2928	parked => 1,
2441	prio => 0,	2929	prio => 0,
2442	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
…		…
2446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2447	unless ++$bug_warning > 10;	2935	unless ++$bug_warning > 10;
2448	return;	2936	return;
2449	}	2937	}
2450		2938
2451	$NOW = Event::time;	2939	$NOW = $tick_start = Event::time;
2452		2940
2453	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
2454	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2455	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2456		2968
2457	$WAIT_FOR_TICK->broadcast;	2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2458	$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;
2459		2988
2460	# 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
2461	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2462		2991
2463	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2464	$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
2465	},	3001	},
2466	);	3002	);
2467		3003
		3004	{
		3005	BDB::max_poll_time $TICK * 0.1;
		3006	$BDB_POLL_WATCHER = Event->io (
		3007	reentrant => 0,
		3008	fd => BDB::poll_fileno,
		3009	poll => 'r',
		3010	prio => 0,
		3011	data => WF_AUTOCANCEL,
		3012	cb => \&BDB::poll_cb,
		3013	);
		3014	BDB::min_parallel 8;
		3015
		3016	BDB::set_sync_prepare {
		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 $@;
		3050	};
		3051	}
		3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
2468	IO::AIO::max_poll_time $TICK * 0.2;	3058	IO::AIO::max_poll_time $TICK * 0.1;
2469
2470	$AIO_POLL_WATCHER = Event->io (	3059	$AIO_POLL_WATCHER = Event->io (
2471	fd => IO::AIO::poll_fileno,	3060	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,	3061	data => WF_AUTOCANCEL,
2480	after => 1,	3062	fd => IO::AIO::poll_fileno,
2481	interval => 10,	3063	poll => 'r',
2482	cb => Coro::unblock_sub {	3064	prio => 6,
2483	write_runtime	3065	cb => \&IO::AIO::poll_cb,
2484	or warn "ERROR: unable to write runtime file: $!";	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";
2485	},	3104	}
2486	);	3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2487		3109
2488	END { cf::emergency_save }	3110	END { cf::emergency_save }
2489		3111
2490	1	3112	1
2491		3113

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