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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.168 by root, Sun Jan 14 00:37:14 2007 UTC vs.
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
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
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	235	$d
192	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
193	}	237	}
194		238
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196		240
197	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
198		242
199	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
200		244
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
209		246
210	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		248
219	=item cf::lock_wait $string	249	=item cf::lock_wait $string
220		250
221	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
222		252
…		…
228	returned.	258	returned.
229		259
230	Lock names should begin with a unique identifier (for example, cf::map::find	260	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
232		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
233	=cut	267	=cut
234		268
235	our %LOCK;	269	our %LOCK;
236		270
237	sub lock_wait($) {	271	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
258	}	292	}
259	}	293	}
260		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
261	sub freeze_mainloop {	301	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
263		303
264	my $guard = Coro::guard {	304	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	305	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	306	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
270	$guard	308	$guard
271	}	309	}
272		310
273	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
295		333
296	sub sync_job(&) {	334	sub sync_job(&) {
297	my ($job) = @_;	335	my ($job) = @_;
298		336
299	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
300	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
302		342
303	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
315		355
316	while ($busy) {	356	while ($busy) {
317	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
318	}	358	}
319		359
		360	$time = Event::time - $time;
		361
		362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		364
		365	$tick_start += $time; # do not account sync jobs to server load
		366
320	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
321	} else {	368	} else {
322	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
323		370
324	$job->()	371	$job->()
…		…
344		391
345	$coro	392	$coro
346	}	393	}
347		394
348	sub write_runtime {	395	sub write_runtime {
349	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
350		404
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352	or return;	406	or return;
353		407
		408	my $value = $cf::RUNTIME + 90 + 10;
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;	413	and return;
357		414
		415	# always fsync - this file is important
358	aio_fsync $fh	416	aio_fsync $fh
359	and return;	417	and return;
360		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
361	close $fh	422	close $fh
362	or return;	423	or return;
363		424
364	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
365	and return;	426	and return;
366		427
		428	warn "runtime file written.\n";
		429
367	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	442	}
369		443
370	=back	444	=back
371		445
372	=cut	446	=cut
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	578	our @CB_MAP = ();
505		579
506	my %attachment;	580	my %attachment;
507		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
508	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
510		590
511	use sort 'stable';	591	use sort 'stable';
512		592
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
547		627
548	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		632
553	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	634	my $pkg = shift @arg;
555		635
556	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
597	if (ref $_[0]) {	677	if (ref $_[0]) {
598	_object_attach @_;	678	_object_attach @_;
599	} else {	679	} else {
600	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
601	}	681	}
		682	_recalc_want;
602	};	683	};
603		684
604	# all those should be optimised	685	# all those should be optimised
605	sub cf::attachable::detach {	686	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
610	reattach ($obj);	691	reattach ($obj);
611	} else {	692	} else {
612	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
613	}	694	}
		695	_recalc_want;
614	};	696	};
615		697
616	sub cf::attachable::attached {	698	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
618		700
…		…
683	# object support	765	# object support
684		766
685	sub reattach {	767	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
688		772
689	my $registry = $obj->registry;	773	my $registry = $obj->registry;
690		774
691	@$registry = ();	775	@$registry = ();
692		776
…		…
739	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
740		824
741	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
742	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
743	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
744	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
745	close $fh;	829	close $fh;
746		830
747	if (@$objs) {	831	if (@$objs) {
748	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
749	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
750	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
751	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
752	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	837	close $fh;
754	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
755	}	839	}
756	} else {	840	} else {
757	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
789	or return;	873	or return;
790	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
791	}	875	}
792		876
793	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
794	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
795	return ($data, $av);	879	return ($data, $av);
796	}	880	}
797		881
798	#############################################################################	882	#############################################################################
799	# command handling &c	883	# command handling &c
…		…
926	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
927		1011
928	=cut	1012	=cut
929		1013
930	sub playerdir($) {	1014	sub playerdir($) {
931	cf::localdir	1015	"$PLAYERDIR/"
932	. "/"
933	. cf::playerdir
934	. "/"
935	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
936	}	1017	}
937		1018
938	sub path($) {	1019	sub path($) {
939	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
940		1021
941	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
942	}	1023	}
943		1024
944	sub find_active($) {	1025	sub find_active($) {
945	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
946	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
949		1030
950	sub exists($) {	1031	sub exists($) {
951	my ($login) = @_;	1032	my ($login) = @_;
952		1033
953	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
954	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
955	}	1036	}
956		1037
957	sub find($) {	1038	sub find($) {
958	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
959	my $login = $_[0];	1040	my $login = $_[0];
960		1041
961	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
962		1043
963	$cf::PLAYER{$_[0]} || do {	1044	$cf::PLAYER{$_[0]} || do {
		1045	# rename old playerfiles to new ones
		1046	#TODO: remove when no longer required
		1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1050	aio_unlink +(playerdir $login) . "/$login.pl";
		1051
964	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
965	or return;	1053	or return;
966	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
967	}	1055	}
968	}	1056	}
…		…
1005		1093
1006	=cut	1094	=cut
1007		1095
1008	sub quit_character {	1096	sub quit_character {
1009	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1010		1100
1011	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1012	$pl->password ("*"); # this should lock out the player until we nuked the dir	1102	$pl->password ("*"); # this should lock out the player until we nuked the dir
1013		1103
1014	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1019	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1020	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1021	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1022	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1023	$pl->destroy;	1113	$pl->destroy;
		1114
		1115	my $prefix = qr<^~\Q$name\E/>;
		1116
		1117	# nuke player maps
		1118	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1119
1024	IO::AIO::aio_rmtree $temp;	1120	IO::AIO::aio_rmtree $temp;
		1121	}
		1122
		1123	=item $pl->kick
		1124
		1125	Kicks a player out of the game. This destroys the connection.
		1126
		1127	=cut
		1128
		1129	sub kick {
		1130	my ($pl, $kicker) = @_;
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1133	$pl->killer ("kicked");
		1134	$pl->ns->destroy;
1025	}	1135	}
1026		1136
1027	=item cf::player::list_logins	1137	=item cf::player::list_logins
1028		1138
1029	Returns am arrayref of all valid playernames in the system, can take a	1139	Returns am arrayref of all valid playernames in the system, can take a
1030	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1031		1141
1032	=cut	1142	=cut
1033		1143
1034	sub list_logins {	1144	sub list_logins {
1035	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1036	or return [];	1146	or return [];
1037		1147
1038	my @logins;	1148	my @logins;
1039		1149
1040	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1057	=cut	1167	=cut
1058		1168
1059	sub maps($) {	1169	sub maps($) {
1060	my ($pl) = @_;	1170	my ($pl) = @_;
1061		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
1062	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1063	or return;	1175	or return;
1064		1176
1065	my @paths;	1177	my @paths;
1066		1178
1067	for (@$files) {	1179	for (@$files) {
1068	utf8::decode $_;	1180	utf8::decode $_;
1069	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1070	next unless /^$PATH_SEP/o;	1182	next unless /^$PATH_SEP/o;
1071		1183
1072	s/\.map$//;	1184	push @paths, cf::map::normalise "~$pl/$_";
1073	push @paths, "~" . $pl->ob->name . "/" . $_;
1074	}	1185	}
1075		1186
1076	\@paths	1187	\@paths
1077	}	1188	}
1078		1189
1079	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1080		1191
1081	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1082		1193
1083	=cut	1194	=cut
1084		1195
1085	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1086	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1087		1198
1088	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1089		1200
1090	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1091	}	1202	}
1092		1203
1093	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		1211	my ($self, $type, %msg) = @_;
		1212
		1213	$self->ns->ext_event ($type, %msg);
		1214	}
		1215
		1216	=head3 cf::region
		1217
		1218	=over 4
		1219
		1220	=cut
		1221
		1222	package cf::region;
		1223
		1224	=item cf::region::find_by_path $path
		1225
		1226	Tries to decuce the probable region for a map knowing only its path.
		1227
		1228	=cut
		1229
		1230	sub find_by_path($) {
		1231	my ($path) = @_;
		1232
		1233	my ($match, $specificity);
		1234
		1235	for my $region (list) {
		1236	if ($region->match && $path =~ $region->match) {
		1237	($match, $specificity) = ($region, $region->specificity)
		1238	if $region->specificity > $specificity;
		1239	}
		1240	}
		1241
		1242	$match
		1243	}
1094		1244
1095	=back	1245	=back
1096
1097		1246
1098	=head3 cf::map	1247	=head3 cf::map
1099		1248
1100	=over 4	1249	=over 4
1101		1250
…		…
1105		1254
1106	use Fcntl;	1255	use Fcntl;
1107	use Coro::AIO;	1256	use Coro::AIO;
1108		1257
1109	use overload	1258	use overload
1110	'""' => \&as_string;	1259	'""' => \&as_string,
		1260	fallback => 1;
1111		1261
1112	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1114		1264
1115	sub generate_random_map {	1265	sub generate_random_map {
1116	my ($self, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1119	$self->_create_random_map (	1268	$self->_create_random_map (
1120	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1121	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1122	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1129	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1130	(cf::region::find $rmp->{region}), $rmp->{custom}	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
1131	)	1280	)
1132	}	1281	}
1133		1282
		1283	=item cf::map->register ($regex, $prio)
		1284
		1285	Register a handler for the map path matching the given regex at the
		1286	givne priority (higher is better, built-in handlers have priority 0, the
		1287	default).
		1288
		1289	=cut
		1290
1134	sub register {	1291	sub register {
1135	my (undef, $regex) = @_;	1292	my (undef, $regex, $prio) = @_;
1136	my $pkg = caller;	1293	my $pkg = caller;
1137		1294
1138	no strict;	1295	no strict;
1139	push @{"$pkg\::ISA"}, __PACKAGE__;	1296	push @{"$pkg\::ISA"}, __PACKAGE__;
1140		1297
1141	$EXT_MAP{$pkg} = qr<$regex>;	1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1142	}	1299	}
1143		1300
1144	# also paths starting with '/'	1301	# also paths starting with '/'
1145	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1302	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1303
		1304	sub thawer_merge {
		1305	my ($self, $merge) = @_;
		1306
		1307	# we have to keep some variables in memory intact
		1308	local $self->{path};
		1309	local $self->{load_path};
		1310
		1311	$self->SUPER::thawer_merge ($merge);
		1312	}
1146		1313
1147	sub normalise {	1314	sub normalise {
1148	my ($path, $base) = @_;	1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
1149		1320
1150	# map plan:	1321	# map plan:
1151	#	1322	#
1152	# /! non-realised random map exit (special hack!)	1323	# /! non-realised random map exit (special hack!)
1153	# {... are special paths that are not being touched	1324	# {... are special paths that are not being touched
…		…
1181		1352
1182	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1353	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1183		1354
1184	$path = normalise $path, $base;	1355	$path = normalise $path, $base;
1185		1356
1186	for my $pkg (keys %EXT_MAP) {	1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1187	if ($path =~ $EXT_MAP{$pkg}) {	1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
1188	my $self = bless cf::map::new, $pkg;	1359	my $self = bless cf::map::new, $pkg;
1189	$self->{path} = $path; $self->path ($path);	1360	$self->{path} = $path; $self->path ($path);
1190	$self->init; # pass $1 etc.	1361	$self->init; # pass $1 etc.
1191	return $self;	1362	return $self;
1192	}	1363	}
1193	}	1364	}
1194		1365
1195	Carp::carp "unable to resolve path '$path'.";	1366	Carp::carp "unable to resolve path '$path' (base '$base').";
1196	()	1367	()
1197	}	1368	}
1198		1369
1199	sub init {	1370	sub init {
1200	my ($self) = @_;	1371	my ($self) = @_;
…		…
1215		1386
1216	# the original (read-only) location	1387	# the original (read-only) location
1217	sub load_path {	1388	sub load_path {
1218	my ($self) = @_;	1389	my ($self) = @_;
1219		1390
1220	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1391	"$MAPDIR/$self->{path}.map"
1221	}	1392	}
1222		1393
1223	# the temporary/swap location	1394	# the temporary/swap location
1224	sub save_path {	1395	sub save_path {
1225	my ($self) = @_;	1396	my ($self) = @_;
1226		1397
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1399	"$TMPDIR/$path.map"
1229	}	1400	}
1230		1401
1231	# the unique path, undef == no special unique path	1402	# the unique path, undef == no special unique path
1232	sub uniq_path {	1403	sub uniq_path {
1233	my ($self) = @_;	1404	my ($self) = @_;
1234		1405
1235	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1236	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1407	"$UNIQUEDIR/$path"
1237	}	1408	}
1238		1409
1239	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1240	# all maps in C++...	1411	# all maps in C++...
1241	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1243		1414
1244	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1245	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1246	}	1417	}
1247		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
1248	sub unlink_save {	1427	sub unlink_save {
1249	my ($self) = @_;	1428	my ($self) = @_;
1250		1429
1251	utf8::encode (my $save = $self->save_path);	1430	utf8::encode (my $save = $self->save_path);
1252	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1253	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1254	}	1433	}
1255		1434
1256	sub load_header_from($) {	1435	sub load_header_from($) {
1257	my ($self, $path) = @_;	1436	my ($self, $path) = @_;
1258		1437
1259	utf8::encode $path;	1438	utf8::encode $path;
1260	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
1261	or return;	1440	# or return;
1262		1441
1263	$self->_load_header ($path)	1442	$self->_load_header ($path)
1264	or return;	1443	or return;
1265		1444
1266	$self->{load_path} = $path;	1445	$self->{load_path} = $path;
1267		1446
1268	1	1447	1
1269	}	1448	}
1270		1449
1271	sub load_orig {	1450	sub load_header_orig {
1272	my ($self) = @_;	1451	my ($self) = @_;
1273		1452
1274	$self->load_header_from ($self->load_path)	1453	$self->load_header_from ($self->load_path)
1275	}	1454	}
1276		1455
1277	sub load_temp {	1456	sub load_header_temp {
1278	my ($self) = @_;	1457	my ($self) = @_;
1279		1458
1280	$self->load_header_from ($self->save_path)	1459	$self->load_header_from ($self->save_path)
		1460	}
		1461
		1462	sub prepare_temp {
		1463	my ($self) = @_;
		1464
		1465	$self->last_access ((delete $self->{last_access})
		1466	|| $cf::RUNTIME); #d#
		1467	# safety
		1468	$self->{instantiate_time} = $cf::RUNTIME
		1469	if $self->{instantiate_time} > $cf::RUNTIME;
		1470	}
		1471
		1472	sub prepare_orig {
		1473	my ($self) = @_;
		1474
		1475	$self->{load_original} = 1;
		1476	$self->{instantiate_time} = $cf::RUNTIME;
		1477	$self->last_access ($cf::RUNTIME);
		1478	$self->instantiate;
1281	}	1479	}
1282		1480
1283	sub load_header {	1481	sub load_header {
1284	my ($self) = @_;	1482	my ($self) = @_;
1285		1483
1286	if ($self->load_temp) {	1484	if ($self->load_header_temp) {
1287	$self->last_access ((delete $self->{last_access})	1485	$self->prepare_temp;
1288	|| $cf::RUNTIME); #d#
1289	# safety
1290	$self->{instantiate_time} = $cf::RUNTIME
1291	if $self->{instantiate_time} > $cf::RUNTIME;
1292	} else {	1486	} else {
1293	$self->load_orig	1487	$self->load_header_orig
1294	or return;	1488	or return;
1295		1489	$self->prepare_orig;
1296	$self->{load_original} = 1;
1297	$self->{instantiate_time} = $cf::RUNTIME;
1298	$self->last_access ($cf::RUNTIME);
1299	$self->instantiate;
1300	}	1490	}
		1491
		1492	$self->{deny_reset} = 1
		1493	if $self->no_reset;
		1494
		1495	$self->default_region (cf::region::find_by_path $self->{path})
		1496	unless $self->default_region;
1301		1497
1302	1	1498	1
1303	}	1499	}
1304		1500
1305	sub find;	1501	sub find;
…		…
1318	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1319		1515
1320	$map->load_header	1516	$map->load_header
1321	or return;	1517	or return;
1322		1518
1323	if ($map->should_reset) {	1519	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1520	# doing this can freeze the server in a sync job, obviously
		1521	#$cf::WAIT_FOR_TICK->wait;
1324	$map->reset;	1522	$map->reset;
1325	undef $guard;	1523	undef $guard;
1326	$map = find $path	1524	return find $path;
1327	or return;
1328	}	1525	}
1329		1526
1330	$cf::MAP{$path} = $map	1527	$cf::MAP{$path} = $map
1331	}	1528	}
1332	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1333		1533
1334	sub load {	1534	sub load {
1335	my ($self) = @_;	1535	my ($self) = @_;
1336		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1337	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1338	my $guard = cf::lock_acquire "map_load:$path";	1542	my $guard = cf::lock_acquire "map_load:$path";
1339		1543
1340	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1341		1545
1342	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1343		1547
1344	$self->alloc;	1548	$self->alloc;
1345	$self->_load_objects ($self->{load_path}, 1)
1346	or return;
1347		1549
1348	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1550	$self->pre_load;
1349	if delete $self->{load_original};
1350
1351	if (my $uniq = $self->uniq_path) {
1352	utf8::encode $uniq;
1353	if (aio_open $uniq, O_RDONLY, 0) {
1354	$self->clear_unique_items;
1355	$self->_load_objects ($uniq, 0);
1356	}
1357	}
1358
1359	Coro::cede;
1360
1361	# now do the right thing for maps
1362	$self->link_multipart_objects;
1363
1364	unless ($self->{deny_activate}) {
1365	$self->decay_objects;
1366	$self->fix_auto_apply;
1367	$self->update_buttons;
1368	Coro::cede;	1551	Coro::cede;
1369	$self->set_darkness_map;	1552
		1553	$self->_load_objects ($self->{load_path}, 1)
		1554	or return;
		1555
		1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1557	if delete $self->{load_original};
		1558
		1559	if (my $uniq = $self->uniq_path) {
		1560	utf8::encode $uniq;
		1561	if (aio_open $uniq, O_RDONLY, 0) {
		1562	$self->clear_unique_items;
		1563	$self->_load_objects ($uniq, 0);
		1564	}
		1565	}
		1566
		1567	Coro::cede;
		1568	# now do the right thing for maps
		1569	$self->link_multipart_objects;
1370	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1371	unless $self->difficulty;	1571	unless $self->difficulty;
1372	Coro::cede;	1572	Coro::cede;
		1573
		1574	unless ($self->{deny_activate}) {
		1575	$self->decay_objects;
		1576	$self->fix_auto_apply;
		1577	$self->update_buttons;
		1578	Coro::cede;
		1579	$self->set_darkness_map;
		1580	Coro::cede;
1373	$self->activate;	1581	$self->activate;
1374	}	1582	}
1375		1583
1376	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
1377	}	1588	}
1378		1589
1379	sub customise_for {	1590	sub customise_for {
1380	my ($self, $ob) = @_;	1591	my ($self, $ob) = @_;
1381		1592
1382	return find "~" . $ob->name . "/" . $self->{path}	1593	return find "~" . $ob->name . "/" . $self->{path}
1383	if $self->per_player;	1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
1384		1598
1385	$self	1599	$self
1386	}	1600	}
1387		1601
1388	# find and load all maps in the 3x3 area around a map	1602	# find and load all maps in the 3x3 area around a map
…		…
1420		1634
1421	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1422	}	1636	}
1423		1637
1424	our %MAP_PREFETCH;	1638	our %MAP_PREFETCH;
1425	our $MAP_PREFETCHER = Coro::async {	1639	our $MAP_PREFETCHER = undef;
1426	while () {
1427	for my $path (keys %MAP_PREFETCH) {
1428	my $map = find $path
1429	or next;
1430	$map->load;
1431
1432	delete $MAP_PREFETCH{$path};
1433	}
1434	Coro::schedule;
1435	}
1436	};
1437		1640
1438	sub find_async {	1641	sub find_async {
1439	my ($path, $origin) = @_;	1642	my ($path, $origin) = @_;
1440		1643
1441	$path = normalise $path, $origin && $origin->{path};	1644	$path = normalise $path, $origin && $origin->{path};
1442		1645
1443	if (my $map = $cf::MAP{$path}) {	1646	if (my $map = $cf::MAP{$path}) {
1444	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1445	}	1648	}
1446		1649
1447	$MAP_PREFETCH{$path} = 0;	1650	undef $MAP_PREFETCH{$path};
		1651	$MAP_PREFETCHER ||= cf::async {
		1652	while (%MAP_PREFETCH) {
		1653	for my $path (keys %MAP_PREFETCH) {
		1654	my $map = find $path
		1655	or next;
		1656	$map->load;
		1657
		1658	delete $MAP_PREFETCH{$path};
		1659	}
		1660	}
		1661	undef $MAP_PREFETCHER;
		1662	};
1448	$MAP_PREFETCHER->ready;	1663	$MAP_PREFETCHER->prio (6);
1449		1664
1450	()	1665	()
1451	}	1666	}
1452		1667
1453	sub save {	1668	sub save {
…		…
1498		1713
1499	sub reset_at {	1714	sub reset_at {
1500	my ($self) = @_;	1715	my ($self) = @_;
1501		1716
1502	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1503	return 1e99 if $self->isa ("ext::map_per_player");
1504	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1505		1719
1506	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1507	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1508		1722
…		…
1513	my ($self) = @_;	1727	my ($self) = @_;
1514		1728
1515	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1516	}	1730	}
1517		1731
1518	sub rename {
1519	my ($self, $new_path) = @_;
1520
1521	normalise $new_path;
1522
1523	$self->unlink_save;
1524
1525	delete $cf::MAP{$self->path};
1526	$self->{path} = $new_path; $self->path ($self->{path});
1527	$cf::MAP{$self->path} = $self;
1528
1529	$self->save;
1530	}
1531
1532	sub reset {	1732	sub reset {
1533	my ($self) = @_;	1733	my ($self) = @_;
1534		1734
1535	my $lock = cf::lock_acquire "map_data:$self->{path}";	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1536		1736
1537	return if $self->players;	1737	return if $self->players;
1538	return if $self->isa ("ext::map_per_player");#d#
1539		1738
1540	warn "resetting map ", $self->path;#d#	1739	warn "resetting map ", $self->path;
		1740
		1741	$self->in_memory (cf::MAP_SWAPPED);
		1742
		1743	# need to save uniques path
		1744	unless ($self->{deny_save}) {
		1745	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1746
		1747	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1748	if $uniq;
		1749	}
1541		1750
1542	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
1543		1752
1544	$self->in_memory (cf::MAP_SWAPPED);
1545	$self->clear;	1753	$self->clear;
1546		1754
1547	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1548		1756
1549	$self->unlink_save;	1757	$self->unlink_save;
…		…
1553	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1554		1762
1555	sub nuke {	1763	sub nuke {
1556	my ($self) = @_;	1764	my ($self) = @_;
1557		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1558	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1559	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1560	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1561	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
1562	}	1779	}
1563		1780
1564	=item cf::map::unique_maps	1781	=item cf::map::unique_maps
1565		1782
…		…
1567	instantiated unique items. May block.	1784	instantiated unique items. May block.
1568		1785
1569	=cut	1786	=cut
1570		1787
1571	sub unique_maps() {	1788	sub unique_maps() {
1572	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1789	my $files = aio_readdir $UNIQUEDIR
1573	or return;	1790	or return;
1574		1791
1575	my @paths;	1792	my @paths;
1576		1793
1577	for (@$files) {	1794	for (@$files) {
1578	utf8::decode $_;	1795	utf8::decode $_;
1579	next if /\.pst$/;	1796	next if /\.pst$/;
1580	next unless /^$PATH_SEP/o;	1797	next unless /^$PATH_SEP/o;
1581		1798
1582	s/\.map$//;	1799	push @paths, cf::map::normalise $_;
1583	push @paths, $_;
1584	}	1800	}
1585		1801
1586	\@paths	1802	\@paths
1587	}	1803	}
1588		1804
…		…
1682	=cut	1898	=cut
1683		1899
1684	sub link_map {	1900	sub link_map {
1685	unless ($LINK_MAP) {	1901	unless ($LINK_MAP) {
1686	$LINK_MAP = cf::map::find "{link}"	1902	$LINK_MAP = cf::map::find "{link}"
1687	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1903	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1688	$LINK_MAP->load;	1904	$LINK_MAP->load;
1689	}	1905	}
1690		1906
1691	$LINK_MAP	1907	$LINK_MAP
1692	}	1908	}
…		…
1697	$self->deactivate_recursive;	1913	$self->deactivate_recursive;
1698		1914
1699	return if UNIVERSAL::isa $self->map, "ext::map_link";	1915	return if UNIVERSAL::isa $self->map, "ext::map_link";
1700		1916
1701	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1917	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1702	if $self->map;	1918	if $self->map && $self->map->{path} ne "{link}";
1703		1919
1704	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1920	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1705	}	1921	}
1706		1922
1707	sub cf::object::player::leave_link {	1923	sub cf::object::player::leave_link {
1708	my ($self, $map, $x, $y) = @_;	1924	my ($self, $map, $x, $y) = @_;
		1925
		1926	return unless $self->contr->active;
1709		1927
1710	my $link_pos = delete $self->{_link_pos};	1928	my $link_pos = delete $self->{_link_pos};
1711		1929
1712	unless ($map) {	1930	unless ($map) {
1713	# restore original map position	1931	# restore original map position
…		…
1731	$map->load;	1949	$map->load;
1732	$map->load_diag;	1950	$map->load_diag;
1733		1951
1734	return unless $self->contr->active;	1952	return unless $self->contr->active;
1735	$self->activate_recursive;	1953	$self->activate_recursive;
		1954
		1955	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1736	$self->enter_map ($map, $x, $y);	1956	$self->enter_map ($map, $x, $y);
1737	}	1957	}
1738		1958
1739	cf::player->attach (
1740	on_logout => sub {
1741	my ($pl) = @_;
1742
1743	# abort map switching before logout
1744	if ($pl->ob->{_link_pos}) {
1745	cf::sync_job {
1746	$pl->ob->leave_link
1747	};
1748	}
1749	},
1750	on_login => sub {
1751	my ($pl) = @_;
1752
1753	# try to abort aborted map switching on player login :)
1754	# should happen only on crashes
1755	if ($pl->ob->{_link_pos}) {
1756	$pl->ob->enter_link;
1757	(async {
1758	# we need this sleep as the login has a concurrent enter_exit running
1759	# and this sleep increases chances of the player not ending up in scorn
1760	$pl->ob->reply (undef,
1761	"There was an internal problem at your last logout, "
1762	. "the server will try to bring you to your intended destination in a second.",
1763	cf::NDI_RED);
1764	Coro::Timer::sleep 1;
1765	$pl->ob->leave_link;
1766	})->prio (2);
1767	}
1768	},
1769	);
1770
1771	=item $player_object->goto ($path, $x, $y)	1959	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1772		1960
		1961	Moves the player to the given map-path and coordinates by first freezing
		1962	her, loading and preparing them map, calling the provided $check callback
		1963	that has to return the map if sucecssful, and then unfreezes the player on
		1964	the new (success) or old (failed) map position.
		1965
1773	=cut	1966	=cut
		1967
		1968	our $GOTOGEN;
1774		1969
1775	sub cf::object::player::goto {	1970	sub cf::object::player::goto {
1776	my ($self, $path, $x, $y) = @_;	1971	my ($self, $path, $x, $y, $check) = @_;
		1972
		1973	# do generation counting so two concurrent goto's will be executed in-order
		1974	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1777		1975
1778	$self->enter_link;	1976	$self->enter_link;
1779		1977
1780	(async {	1978	(async {
		1979	my $map = eval {
1781	my $map = cf::map::find $path;	1980	my $map = cf::map::find $path;
		1981
		1982	if ($map) {
1782	$map = $map->customise_for ($self) if $map;	1983	$map = $map->customise_for ($self);
1783		1984	$map = $check->($map) if $check && $map;
1784	# warn "entering ", $map->path, " at ($x, $y)\n"	1985	} else {
1785	# if $map;
1786
1787	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1986	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1987	}
1788		1988
		1989	$map
		1990	};
		1991
		1992	if ($@) {
		1993	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1994	LOG llevError | logBacktrace, Carp::longmess $@;
		1995	}
		1996
		1997	if ($gen == $self->{_goto_generation}) {
		1998	delete $self->{_goto_generation};
1789	$self->leave_link ($map, $x, $y);	1999	$self->leave_link ($map, $x, $y);
		2000	}
1790	})->prio (1);	2001	})->prio (1);
1791	}	2002	}
1792		2003
1793	=item $player_object->enter_exit ($exit_object)	2004	=item $player_object->enter_exit ($exit_object)
1794		2005
…		…
1796		2007
1797	sub parse_random_map_params {	2008	sub parse_random_map_params {
1798	my ($spec) = @_;	2009	my ($spec) = @_;
1799		2010
1800	my $rmp = { # defaults	2011	my $rmp = { # defaults
1801	xsize => 10,	2012	xsize => (cf::rndm 15, 40),
1802	ysize => 10,	2013	ysize => (cf::rndm 15, 40),
		2014	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2015	#layout => string,
1803	};	2016	};
1804		2017
1805	for (split /\n/, $spec) {	2018	for (split /\n/, $spec) {
1806	my ($k, $v) = split /\s+/, $_, 2;	2019	my ($k, $v) = split /\s+/, $_, 2;
1807		2020
…		…
1811	$rmp	2024	$rmp
1812	}	2025	}
1813		2026
1814	sub prepare_random_map {	2027	sub prepare_random_map {
1815	my ($exit) = @_;	2028	my ($exit) = @_;
		2029
		2030	my $guard = cf::lock_acquire "exit_prepare:$exit";
1816		2031
1817	# all this does is basically replace the /! path by	2032	# all this does is basically replace the /! path by
1818	# a new random map path (?random/...) with a seed	2033	# a new random map path (?random/...) with a seed
1819	# that depends on the exit object	2034	# that depends on the exit object
1820		2035
1821	my $rmp = parse_random_map_params $exit->msg;	2036	my $rmp = parse_random_map_params $exit->msg;
1822		2037
1823	if ($exit->map) {	2038	if ($exit->map) {
1824	$rmp->{region} = $exit->map->region_name;	2039	$rmp->{region} = $exit->region->name;
1825	$rmp->{origin_map} = $exit->map->path;	2040	$rmp->{origin_map} = $exit->map->path;
1826	$rmp->{origin_x} = $exit->x;	2041	$rmp->{origin_x} = $exit->x;
1827	$rmp->{origin_y} = $exit->y;	2042	$rmp->{origin_y} = $exit->y;
1828	}	2043	}
1829		2044
1830	$rmp->{random_seed} ||= $exit->random_seed;	2045	$rmp->{random_seed} ||= $exit->random_seed;
1831		2046
1832	my $data = cf::to_json $rmp;	2047	my $data = cf::to_json $rmp;
1833	my $md5 = Digest::MD5::md5_hex $data;	2048	my $md5 = Digest::MD5::md5_hex $data;
		2049	my $meta = "$RANDOMDIR/$md5.meta";
1834		2050
1835	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2051	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1836	aio_write $fh, 0, (length $data), $data, 0;	2052	aio_write $fh, 0, (length $data), $data, 0;
		2053	undef $fh;
		2054	aio_rename "$meta~", $meta;
1837		2055
1838	$exit->slaying ("?random/$md5");	2056	$exit->slaying ("?random/$md5");
1839	$exit->msg (undef);	2057	$exit->msg (undef);
1840	}	2058	}
1841	}	2059	}
1842		2060
1843	sub cf::object::player::enter_exit {	2061	sub cf::object::player::enter_exit {
1844	my ($self, $exit) = @_;	2062	my ($self, $exit) = @_;
1845		2063
1846	return unless $self->type == cf::PLAYER;	2064	return unless $self->type == cf::PLAYER;
		2065
		2066	if ($exit->slaying eq "/!") {
		2067	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2068	# the problem is that $exit might not survive long enough
		2069	# so it needs to be done right now, right here
		2070	cf::sync_job { prepare_random_map $exit };
		2071	}
		2072
		2073	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2074	my $hp = $exit->stats->hp;
		2075	my $sp = $exit->stats->sp;
1847		2076
1848	$self->enter_link;	2077	$self->enter_link;
1849		2078
1850	(async {	2079	(async {
1851	$self->deactivate_recursive; # just to be sure	2080	$self->deactivate_recursive; # just to be sure
1852	unless (eval {	2081	unless (eval {
1853	prepare_random_map $exit	2082	$self->goto ($slaying, $hp, $sp);
1854	if $exit->slaying eq "/!";
1855
1856	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1857	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1858		2083
1859	1;	2084	1;
1860	}) {	2085	}) {
1861	$self->message ("Something went wrong deep within the crossfire server. "	2086	$self->message ("Something went wrong deep within the crossfire server. "
1862	. "I'll try to bring you back to the map you were before. "	2087	. "I'll try to bring you back to the map you were before. "
1863	. "Please report this to the dungeon master!",	2088	. "Please report this to the dungeon master!",
1864	cf::NDI_UNIQUE | cf::NDI_RED);	2089	cf::NDI_UNIQUE | cf::NDI_RED);
1865		2090
1866	warn "ERROR in enter_exit: $@";	2091	warn "ERROR in enter_exit: $@";
1867	$self->leave_link;	2092	$self->leave_link;
1868	}	2093	}
1869	})->prio (1);	2094	})->prio (1);
…		…
1882		2107
1883	sub cf::client::send_drawinfo {	2108	sub cf::client::send_drawinfo {
1884	my ($self, $text, $flags) = @_;	2109	my ($self, $text, $flags) = @_;
1885		2110
1886	utf8::encode $text;	2111	utf8::encode $text;
1887	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2112	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1888	}	2113	}
1889		2114
		2115	=item $client->ext_event ($type, %msg)
		2116
		2117	Sends an exti event to the client.
		2118
		2119	=cut
		2120
		2121	sub cf::client::ext_event($$%) {
		2122	my ($self, $type, %msg) = @_;
		2123
		2124	$msg{msgtype} = "event_$type";
		2125	$self->send_packet ("ext " . cf::to_json \%msg);
		2126	}
1890		2127
1891	=item $success = $client->query ($flags, "text", \&cb)	2128	=item $success = $client->query ($flags, "text", \&cb)
1892		2129
1893	Queues a query to the client, calling the given callback with	2130	Queues a query to the client, calling the given callback with
1894	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1923	# get handled first	2160	# get handled first
1924	my $queue = delete $ns->{query_queue}	2161	my $queue = delete $ns->{query_queue}
1925	or return; # be conservative, not sure how that can happen, but we saw a crash here	2162	or return; # be conservative, not sure how that can happen, but we saw a crash here
1926		2163
1927	(shift @$queue)->[1]->($msg);	2164	(shift @$queue)->[1]->($msg);
		2165	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1928		2166
1929	push @{ $ns->{query_queue} }, @$queue;	2167	push @{ $ns->{query_queue} }, @$queue;
1930		2168
1931	if (@{ $ns->{query_queue} } == @$queue) {	2169	if (@{ $ns->{query_queue} } == @$queue) {
1932	if (@$queue) {	2170	if (@$queue) {
…		…
1990		2228
1991	# here we export the classes and methods available to script code	2229	# here we export the classes and methods available to script code
1992		2230
1993	=pod	2231	=pod
1994		2232
1995	The following fucntions and emthods are available within a safe environment:	2233	The following functions and methods are available within a safe environment:
1996		2234
1997	cf::object contr pay_amount pay_player map	2235	cf::object contr pay_amount pay_player map
1998	cf::object::player player	2236	cf::object::player player
1999	cf::player peaceful	2237	cf::player peaceful
2000	cf::map trigger	2238	cf::map trigger
…		…
2085	#############################################################################	2323	#############################################################################
2086		2324
2087	=head2 EXTENSION DATABASE SUPPORT	2325	=head2 EXTENSION DATABASE SUPPORT
2088		2326
2089	Crossfire maintains a very simple database for extension use. It can	2327	Crossfire maintains a very simple database for extension use. It can
2090	currently store anything that can be serialised using Storable, which	2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2091	excludes objects.	2329	convert to/from binary).
2092		2330
2093	The parameter C<$family> should best start with the name of the extension	2331	The parameter C<$family> should best start with the name of the extension
2094	using it, it should be unique.	2332	using it, it should be unique.
2095		2333
2096	=over 4	2334	=over 4
2097		2335
2098	=item $hashref = cf::db_get $family
2099
2100	Return a hashref for use by the extension C<$family>, which can be
2101	modified. After modifications, you have to call C<cf::db_dirty> or
2102	C<cf::db_sync>.
2103
2104	=item $value = cf::db_get $family => $key	2336	=item $value = cf::db_get $family => $key
2105		2337
2106	Returns a single value from the database	2338	Returns a single value from the database.
2107
2108	=item cf::db_put $family => $hashref
2109
2110	Stores the given family hashref into the database. Updates are delayed, if
2111	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2112		2339
2113	=item cf::db_put $family => $key => $value	2340	=item cf::db_put $family => $key => $value
2114		2341
2115	Stores the given C<$value> in the family hash. Updates are delayed, if you	2342	Stores the given C<$value> in the family.
2116	want the data to be synced to disk immediately, use C<cf::db_sync>.
2117
2118	=item cf::db_dirty
2119
2120	Marks the database as dirty, to be updated at a later time.
2121
2122	=item cf::db_sync
2123
2124	Immediately write the database to disk I<if it is dirty>.
2125		2343
2126	=cut	2344	=cut
2127		2345
2128	our $DB;	2346	our $DB;
2129		2347
2130	{	2348	sub db_init {
2131	my $path = cf::localdir . "/database.pst";	2349	unless ($DB) {
		2350	$DB = BDB::db_create $DB_ENV;
2132		2351
2133	sub db_load() {	2352	cf::sync_job {
2134	$DB = stat $path ? Storable::retrieve $path : { };	2353	eval {
2135	}	2354	$DB->set_flags (BDB::CHKSUM);
2136		2355
2137	my $pid;	2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2138		2357	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2139	sub db_save() {	2358	cf::cleanup "db_open(db): $!" if $!;
2140	waitpid $pid, 0 if $pid;	2359	};
2141	if (0 == ($pid = fork)) {	2360	cf::cleanup "db_open(db): $@" if $@;
2142	$DB->{_meta}{version} = 1;
2143	Storable::nstore $DB, "$path~";
2144	rename "$path~", $path;
2145	cf::_exit 0 if defined $pid;
2146	}	2361	};
2147	}
2148
2149	my $dirty;
2150
2151	sub db_sync() {
2152	db_save if $dirty;
2153	undef $dirty;
2154	}
2155
2156	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2157	db_sync;
2158	});	2362	}
		2363	}
2159		2364
2160	sub db_dirty() {
2161	$dirty = 1;
2162	$idle->start;
2163	}
2164
2165	sub db_get($;$) {	2365	sub db_get($$) {
2166	@_ >= 2	2366	my $key = "$_[0]/$_[1]";
2167	? $DB->{$_[0]}{$_[1]}
2168	: ($DB->{$_[0]} ||= { })
2169	}
2170		2367
		2368	cf::sync_job {
		2369	BDB::db_get $DB, undef, $key, my $data;
		2370
		2371	$! ? ()
		2372	: $data
		2373	}
		2374	}
		2375
2171	sub db_put($$;$) {	2376	sub db_put($$$) {
2172	if (@_ >= 3) {	2377	BDB::dbreq_pri 4;
2173	$DB->{$_[0]}{$_[1]} = $_[2];	2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2174	} else {	2379	}
2175	$DB->{$_[0]} = $_[1];
2176	}
2177	db_dirty;
2178	}
2179		2380
2180	cf::global->attach (	2381	=item cf::cache $id => [$paths...], $processversion => $process
2181	prio => 10000,	2382
2182	on_cleanup => sub {	2383	Generic caching function that returns the value of the resource $id,
2183	db_sync;	2384	caching and regenerating as required.
		2385
		2386	This function can block.
		2387
		2388	=cut
		2389
		2390	sub cache {
		2391	my ($id, $src, $processversion, $process) = @_;
		2392
		2393	my $meta =
		2394	join "\x00",
		2395	$processversion,
		2396	map {
		2397	aio_stat $_
		2398	and Carp::croak "$_: $!";
		2399
		2400	($_, (stat _)[7,9])
		2401	} @$src;
		2402
		2403	my $dbmeta = db_get cache => "$id/meta";
		2404	if ($dbmeta ne $meta) {
		2405	# changed, we may need to process
		2406
		2407	my @data;
		2408	my $md5;
		2409
		2410	for (0 .. $#$src) {
		2411	0 <= aio_load $src->[$_], $data[$_]
		2412	or Carp::croak "$src->[$_]: $!";
2184	},	2413	}
2185	);	2414
		2415	# if processing is expensive, check
		2416	# checksum first
		2417	if (1) {
		2418	$md5 =
		2419	join "\x00",
		2420	$processversion,
		2421	map {
		2422	Coro::cede;
		2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2424	} 0.. $#$src;
		2425
		2426
		2427	my $dbmd5 = db_get cache => "$id/md5";
		2428	if ($dbmd5 eq $md5) {
		2429	db_put cache => "$id/meta", $meta;
		2430
		2431	return db_get cache => "$id/data";
		2432	}
		2433	}
		2434
		2435	my $t1 = Time::HiRes::time;
		2436	my $data = $process->(\@data);
		2437	my $t2 = Time::HiRes::time;
		2438
		2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2440
		2441	db_put cache => "$id/data", $data;
		2442	db_put cache => "$id/md5" , $md5;
		2443	db_put cache => "$id/meta", $meta;
		2444
		2445	return $data;
		2446	}
		2447
		2448	db_get cache => "$id/data"
		2449	}
		2450
		2451	=item fork_call { }, $args
		2452
		2453	Executes the given code block with the given arguments in a seperate
		2454	process, returning the results. Everything must be serialisable with
		2455	Coro::Storable. May, of course, block. Note that the executed sub may
		2456	never block itself or use any form of Event handling.
		2457
		2458	=cut
		2459
		2460	sub fork_call(&@) {
		2461	my ($cb, @args) = @_;
		2462
		2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2464	# or die "socketpair: $!";
		2465	pipe my $fh1, my $fh2
		2466	or die "pipe: $!";
		2467
		2468	if (my $pid = fork) {
		2469	close $fh2;
		2470
		2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2472	$res = Coro::Storable::thaw $res;
		2473
		2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2475
		2476	die $$res unless "ARRAY" eq ref $res;
		2477
		2478	return wantarray ? @$res : $res->[-1];
		2479	} else {
		2480	reset_signals;
		2481	local $SIG{__WARN__};
		2482	local $SIG{__DIE__};
		2483	eval {
		2484	close $fh1;
		2485
		2486	my @res = eval { $cb->(@args) };
		2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2488	};
		2489
		2490	warn $@ if $@;
		2491	_exit 0;
		2492	}
2186	}	2493	}
2187		2494
2188	#############################################################################	2495	#############################################################################
2189	# the server's main()	2496	# the server's init and main functions
		2497
		2498	sub load_facedata($) {
		2499	my ($path) = @_;
		2500
		2501	warn "loading facedata from $path\n";
		2502
		2503	my $facedata;
		2504	0 < aio_load $path, $facedata
		2505	or die "$path: $!";
		2506
		2507	$facedata = Coro::Storable::thaw $facedata;
		2508
		2509	$facedata->{version} == 2
		2510	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2511
		2512	{
		2513	my $faces = $facedata->{faceinfo};
		2514
		2515	while (my ($face, $info) = each %$faces) {
		2516	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2517	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2518	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2519	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2520	Coro::cede;
		2521	}
		2522
		2523	while (my ($face, $info) = each %$faces) {
		2524	next unless $info->{smooth};
		2525	my $idx = cf::face::find $face
		2526	or next;
		2527	if (my $smooth = cf::face::find $info->{smooth}) {
		2528	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2529	} else {
		2530	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2531	}
		2532	Coro::cede;
		2533	}
		2534	}
		2535
		2536	{
		2537	my $anims = $facedata->{animinfo};
		2538
		2539	while (my ($anim, $info) = each %$anims) {
		2540	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2541	Coro::cede;
		2542	}
		2543
		2544	cf::anim::invalidate_all; # d'oh
		2545	}
		2546
		2547	1
		2548	}
		2549
		2550	sub reload_regions {
		2551	load_resource_file "$MAPDIR/regions"
		2552	or die "unable to load regions file\n";
		2553	}
		2554
		2555	sub reload_facedata {
		2556	load_facedata "$DATADIR/facedata"
		2557	or die "unable to load facedata\n";
		2558	}
		2559
		2560	sub reload_archetypes {
		2561	load_resource_file "$DATADIR/archetypes"
		2562	or die "unable to load archetypes\n";
		2563	}
		2564
		2565	sub reload_treasures {
		2566	load_resource_file "$DATADIR/treasures"
		2567	or die "unable to load treasurelists\n";
		2568	}
		2569
		2570	sub reload_resources {
		2571	warn "reloading resource files...\n";
		2572
		2573	reload_regions;
		2574	reload_facedata;
		2575	#reload_archetypes;#d#
		2576	reload_archetypes;
		2577	reload_treasures;
		2578
		2579	warn "finished reloading resource files\n";
		2580	}
		2581
		2582	sub init {
		2583	reload_resources;
		2584	}
2190		2585
2191	sub cfg_load {	2586	sub cfg_load {
2192	open my $fh, "<:utf8", cf::confdir . "/config"	2587	open my $fh, "<:utf8", "$CONFDIR/config"
2193	or return;	2588	or return;
2194		2589
2195	local $/;	2590	local $/;
2196	*CFG = YAML::Syck::Load <$fh>;	2591	*CFG = YAML::Syck::Load <$fh>;
2197		2592
…		…
2211		2606
2212	sub main {	2607	sub main {
2213	# we must not ever block the main coroutine	2608	# we must not ever block the main coroutine
2214	local $Coro::idle = sub {	2609	local $Coro::idle = sub {
2215	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2611	(async {
2216	async { Event::one_event };	2612	Event::one_event;
		2613	})->prio (Coro::PRIO_MAX);
2217	};	2614	};
2218		2615
2219	cfg_load;	2616	cfg_load;
2220	db_load;	2617	db_init;
2221	load_extensions;	2618	load_extensions;
		2619
		2620	$TICK_WATCHER->start;
2222	Event::loop;	2621	Event::loop;
2223	}	2622	}
2224		2623
2225	#############################################################################	2624	#############################################################################
2226	# initialisation and cleanup	2625	# initialisation and cleanup
2227		2626
2228	# install some emergency cleanup handlers	2627	# install some emergency cleanup handlers
2229	BEGIN {	2628	BEGIN {
2230	for my $signal (qw(INT HUP TERM)) {	2629	for my $signal (qw(INT HUP TERM)) {
2231	Event->signal (	2630	Event->signal (
		2631	reentrant => 0,
2232	data => WF_AUTOCANCEL,	2632	data => WF_AUTOCANCEL,
2233	signal => $signal,	2633	signal => $signal,
		2634	prio => 0,
2234	cb => sub {	2635	cb => sub {
2235	cf::cleanup "SIG$signal";	2636	cf::cleanup "SIG$signal";
2236	},	2637	},
2237	);	2638	);
2238	}	2639	}
2239	}	2640	}
…		…
2260	my $map = $cf::MAP{$path} or next;	2661	my $map = $cf::MAP{$path} or next;
2261	$map->valid or next;	2662	$map->valid or next;
2262	$map->save;	2663	$map->save;
2263	}	2664	}
2264	warn "end emergency map save\n";	2665	warn "end emergency map save\n";
		2666
		2667	warn "begin emergency database checkpoint\n";
		2668	BDB::db_env_txn_checkpoint $DB_ENV;
		2669	warn "end emergency database checkpoint\n";
2265	};	2670	};
2266		2671
2267	warn "leave emergency perl save\n";	2672	warn "leave emergency perl save\n";
2268	}	2673	}
2269		2674
		2675	sub post_cleanup {
		2676	my ($make_core) = @_;
		2677
		2678	warn Carp::longmess "post_cleanup backtrace"
		2679	if $make_core;
		2680	}
		2681
2270	sub reload() {	2682	sub do_reload_perl() {
2271	# can/must only be called in main	2683	# can/must only be called in main
2272	if ($Coro::current != $Coro::main) {	2684	if ($Coro::current != $Coro::main) {
2273	warn "can only reload from main coroutine\n";	2685	warn "can only reload from main coroutine";
2274	return;	2686	return;
2275	}	2687	}
2276		2688
2277	warn "reloading...";	2689	warn "reloading...";
2278		2690
2279	warn "freezing server";	2691	warn "entering sync_job";
2280	my $guard = freeze_mainloop;	2692
		2693	cf::sync_job {
		2694	cf::write_runtime; # external watchdog should not bark
2281	cf::emergency_save;	2695	cf::emergency_save;
		2696	cf::write_runtime; # external watchdog should not bark
2282		2697
2283	warn "sync database to disk";	2698	warn "syncing database to disk";
2284	cf::db_sync;	2699	BDB::db_env_txn_checkpoint $DB_ENV;
2285	IO::AIO::flush;
2286		2700
2287	eval {
2288	# if anything goes wrong in here, we should simply crash as we already saved	2701	# if anything goes wrong in here, we should simply crash as we already saved
2289		2702
2290	warn "cancel all watchers";	2703	warn "cancelling all WF_AUTOCANCEL watchers";
2291	for (Event::all_watchers) {	2704	for (Event::all_watchers) {
2292	$_->cancel if $_->data & WF_AUTOCANCEL;	2705	$_->cancel if $_->data & WF_AUTOCANCEL;
2293	}	2706	}
2294		2707
		2708	warn "flushing outstanding aio requests";
		2709	for (;;) {
		2710	BDB::flush;
		2711	IO::AIO::flush;
		2712	Coro::cede;
		2713	last unless IO::AIO::nreqs || BDB::nreqs;
		2714	warn "iterate...";
		2715	}
		2716
		2717	++$RELOAD;
		2718
2295	warn "cancel all extension coros";	2719	warn "cancelling all extension coros";
2296	$_->cancel for values %EXT_CORO;	2720	$_->cancel for values %EXT_CORO;
2297	%EXT_CORO = ();	2721	%EXT_CORO = ();
2298		2722
2299	warn "remove commands";	2723	warn "removing commands";
2300	%COMMAND = ();	2724	%COMMAND = ();
2301		2725
2302	warn "remove ext commands";	2726	warn "removing ext commands";
2303	%EXTCMD = ();	2727	%EXTCMD = ();
2304		2728
2305	warn "unload/nuke all extensions";	2729	warn "unloading/nuking all extensions";
2306	for my $pkg (@EXTS) {	2730	for my $pkg (@EXTS) {
2307	warn "... unloading $pkg";	2731	warn "... unloading $pkg";
2308		2732
2309	if (my $cb = $pkg->can ("unload")) {	2733	if (my $cb = $pkg->can ("unload")) {
2310	eval {	2734	eval {
…		…
2315		2739
2316	warn "... nuking $pkg";	2740	warn "... nuking $pkg";
2317	Symbol::delete_package $pkg;	2741	Symbol::delete_package $pkg;
2318	}	2742	}
2319		2743
2320	warn "unload all perl modules loaded from $LIBDIR";	2744	warn "unloading all perl modules loaded from $LIBDIR";
2321	while (my ($k, $v) = each %INC) {	2745	while (my ($k, $v) = each %INC) {
2322	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2746	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2323		2747
2324	warn "removing <$k>";	2748	warn "... unloading $k";
2325	delete $INC{$k};	2749	delete $INC{$k};
2326		2750
2327	$k =~ s/\.pm$//;	2751	$k =~ s/\.pm$//;
2328	$k =~ s/\//::/g;	2752	$k =~ s/\//::/g;
2329		2753
…		…
2332	}	2756	}
2333		2757
2334	Symbol::delete_package $k;	2758	Symbol::delete_package $k;
2335	}	2759	}
2336		2760
2337	warn "get rid of safe::, as good as possible";	2761	warn "getting rid of safe::, as good as possible";
2338	Symbol::delete_package "safe::$_"	2762	Symbol::delete_package "safe::$_"
2339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2763	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2340		2764
2341	warn "unload cf.pm \"a bit\"";	2765	warn "unloading cf.pm \"a bit\"";
2342	delete $INC{"cf.pm"};	2766	delete $INC{"cf.pm"};
		2767	delete $INC{"cf/pod.pm"};
2343		2768
2344	# don't, removes xs symbols, too,	2769	# don't, removes xs symbols, too,
2345	# and global variables created in xs	2770	# and global variables created in xs
2346	#Symbol::delete_package __PACKAGE__;	2771	#Symbol::delete_package __PACKAGE__;
2347		2772
		2773	warn "unload completed, starting to reload now";
		2774
2348	warn "reloading cf.pm";	2775	warn "reloading cf.pm";
2349	require cf;	2776	require cf;
2350	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2777	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2351		2778
2352	warn "load config and database again";	2779	warn "loading config and database again";
2353	cf::cfg_load;	2780	cf::cfg_load;
2354	cf::db_load;
2355		2781
2356	warn "load extensions";	2782	warn "loading extensions";
2357	cf::load_extensions;	2783	cf::load_extensions;
2358		2784
2359	warn "reattach attachments to objects/players";	2785	warn "reattaching attachments to objects/players";
2360	_global_reattach;	2786	_global_reattach; # objects, sockets
2361	warn "reattach attachments to maps";	2787	warn "reattaching attachments to maps";
2362	reattach $_ for values %MAP;	2788	reattach $_ for values %MAP;
2363	};	2789	warn "reattaching attachments to players";
		2790	reattach $_ for values %PLAYER;
2364		2791
2365	if ($@) {	2792	warn "leaving sync_job";
		2793
		2794	1
		2795	} or do {
2366	warn $@;	2796	warn $@;
2367	warn "error while reloading, exiting.";	2797	warn "error while reloading, exiting.";
2368	exit 1;	2798	exit 1;
2369	}	2799	};
2370		2800
2371	warn "reloaded";	2801	warn "reloaded";
2372	};	2802	};
2373		2803
		2804	our $RELOAD_WATCHER; # used only during reload
		2805
		2806	sub reload_perl() {
		2807	# doing reload synchronously and two reloads happen back-to-back,
		2808	# coro crashes during coro_state_free->destroy here.
		2809
		2810	$RELOAD_WATCHER ||= Event->timer (
		2811	reentrant => 0,
		2812	after => 0,
		2813	data => WF_AUTOCANCEL,
		2814	cb => sub {
		2815	do_reload_perl;
		2816	undef $RELOAD_WATCHER;
		2817	},
		2818	);
		2819	}
		2820
2374	register_command "reload" => sub {	2821	register_command "reload" => sub {
2375	my ($who, $arg) = @_;	2822	my ($who, $arg) = @_;
2376		2823
2377	if ($who->flag (FLAG_WIZ)) {	2824	if ($who->flag (FLAG_WIZ)) {
2378	$who->message ("start of reload.");
2379	reload;
2380	$who->message ("end of reload.");	2825	$who->message ("reloading server.");
		2826	async { reload_perl };
2381	}	2827	}
2382	};	2828	};
2383		2829
2384	unshift @INC, $LIBDIR;	2830	unshift @INC, $LIBDIR;
2385		2831
		2832	my $bug_warning = 0;
		2833
		2834	our @WAIT_FOR_TICK;
		2835	our @WAIT_FOR_TICK_BEGIN;
		2836
		2837	sub wait_for_tick {
		2838	return unless $TICK_WATCHER->is_active;
		2839	return if $Coro::current == $Coro::main;
		2840
		2841	my $signal = new Coro::Signal;
		2842	push @WAIT_FOR_TICK, $signal;
		2843	$signal->wait;
		2844	}
		2845
		2846	sub wait_for_tick_begin {
		2847	return unless $TICK_WATCHER->is_active;
		2848	return if $Coro::current == $Coro::main;
		2849
		2850	my $signal = new Coro::Signal;
		2851	push @WAIT_FOR_TICK_BEGIN, $signal;
		2852	$signal->wait;
		2853	}
		2854
		2855	my $min = 1e6;#d#
		2856	my $avg = 10;
2386	$TICK_WATCHER = Event->timer (	2857	$TICK_WATCHER = Event->timer (
2387	reentrant => 0,	2858	reentrant => 0,
		2859	parked => 1,
2388	prio => 0,	2860	prio => 0,
2389	at => $NEXT_TICK || $TICK,	2861	at => $NEXT_TICK || $TICK,
2390	data => WF_AUTOCANCEL,	2862	data => WF_AUTOCANCEL,
2391	cb => sub {	2863	cb => sub {
		2864	if ($Coro::current != $Coro::main) {
		2865	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2866	unless ++$bug_warning > 10;
		2867	return;
		2868	}
		2869
2392	$NOW = Event::time;	2870	$NOW = $tick_start = Event::time;
2393		2871
2394	cf::server_tick; # one server iteration	2872	cf::server_tick; # one server iteration
		2873
		2874	0 && sync_job {#d#
		2875	for(1..10) {
		2876	my $t = Event::time;
		2877	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2878	or die;
		2879
		2880	$map->width (50);
		2881	$map->height (50);
		2882	$map->alloc;
		2883	$map->_load_objects ("/tmp/x.map", 1);
		2884	my $t = Event::time - $t;
		2885
		2886	#next unless $t < 0.0013;#d#
		2887	if ($t < $min) {
		2888	$min = $t;
		2889	}
		2890	$avg = $avg * 0.99 + $t * 0.01;
		2891	}
		2892	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2893	exit 0;
		2894	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2895	};
		2896
2395	$RUNTIME += $TICK;	2897	$RUNTIME += $TICK;
2396	$NEXT_TICK += $TICK;	2898	$NEXT_TICK += $TICK;
2397		2899
2398	$WAIT_FOR_TICK->broadcast;	2900	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2399	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2901	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2902	Coro::async_pool {
		2903	write_runtime
		2904	or warn "ERROR: unable to write runtime file: $!";
		2905	};
		2906	}
		2907
		2908	# my $AFTER = Event::time;
		2909	# warn $AFTER - $NOW;#d#
		2910
		2911	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2912	$sig->send;
		2913	}
		2914	while (my $sig = shift @WAIT_FOR_TICK) {
		2915	$sig->send;
		2916	}
		2917
		2918	$NOW = Event::time;
2400		2919
2401	# if we are delayed by four ticks or more, skip them all	2920	# if we are delayed by four ticks or more, skip them all
2402	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2921	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2403		2922
2404	$TICK_WATCHER->at ($NEXT_TICK);	2923	$TICK_WATCHER->at ($NEXT_TICK);
2405	$TICK_WATCHER->start;	2924	$TICK_WATCHER->start;
		2925
		2926	$LOAD = ($NOW - $tick_start) / $TICK;
		2927	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2928
		2929	_post_tick;
		2930
		2931
2406	},	2932	},
2407	);	2933	);
2408		2934
		2935	{
		2936	BDB::max_poll_time $TICK * 0.1;
		2937	$BDB_POLL_WATCHER = Event->io (
		2938	reentrant => 0,
		2939	fd => BDB::poll_fileno,
		2940	poll => 'r',
		2941	prio => 0,
		2942	data => WF_AUTOCANCEL,
		2943	cb => \&BDB::poll_cb,
		2944	);
		2945	BDB::min_parallel 8;
		2946
		2947	BDB::set_sync_prepare {
		2948	my $status;
		2949	my $current = $Coro::current;
		2950	(
		2951	sub {
		2952	$status = $!;
		2953	$current->ready; undef $current;
		2954	},
		2955	sub {
		2956	Coro::schedule while defined $current;
		2957	$! = $status;
		2958	},
		2959	)
		2960	};
		2961
		2962	unless ($DB_ENV) {
		2963	$DB_ENV = BDB::db_env_create;
		2964
		2965	cf::sync_job {
		2966	eval {
		2967	BDB::db_env_open
		2968	$DB_ENV,
		2969	$BDBDIR,
		2970	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2971	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2972	0666;
		2973
		2974	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2975
		2976	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2977	$DB_ENV->set_lk_detect;
		2978	};
		2979
		2980	cf::cleanup "db_env_open(db): $@" if $@;
		2981	};
		2982	}
		2983	}
		2984
		2985	{
		2986	IO::AIO::min_parallel 8;
		2987
		2988	undef $Coro::AIO::WATCHER;
2409	IO::AIO::max_poll_time $TICK * 0.2;	2989	IO::AIO::max_poll_time $TICK * 0.1;
2410
2411	$AIO_POLL_WATCHER = Event->io (	2990	$AIO_POLL_WATCHER = Event->io (
2412	fd => IO::AIO::poll_fileno,	2991	reentrant => 0,
2413	poll => 'r',
2414	prio => 5,
2415	data => WF_AUTOCANCEL,
2416	cb => \&IO::AIO::poll_cb,
2417	);
2418
2419	$WRITE_RUNTIME_WATCHER = Event->timer (
2420	data => WF_AUTOCANCEL,	2992	data => WF_AUTOCANCEL,
2421	after => 0,	2993	fd => IO::AIO::poll_fileno,
2422	interval => 10,	2994	poll => 'r',
2423	cb => sub {	2995	prio => 6,
2424	(Coro::unblock_sub {	2996	cb => \&IO::AIO::poll_cb,
2425	write_runtime	2997	);
2426	or warn "ERROR: unable to write runtime file: $!";	2998	}
		2999
		3000	my $_log_backtrace;
		3001
		3002	sub _log_backtrace {
		3003	my ($msg, @addr) = @_;
		3004
		3005	$msg =~ s/\n//;
		3006
		3007	# limit the # of concurrent backtraces
		3008	if ($_log_backtrace < 2) {
		3009	++$_log_backtrace;
		3010	async {
		3011	my @bt = fork_call {
		3012	@addr = map { sprintf "%x", $_ } @addr;
		3013	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3014	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3015	or die "addr2line: $!";
		3016
		3017	my @funcs;
		3018	my @res = <$fh>;
		3019	chomp for @res;
		3020	while (@res) {
		3021	my ($func, $line) = splice @res, 0, 2, ();
		3022	push @funcs, "[$func] $line";
		3023	}
		3024
		3025	@funcs
		3026	};
		3027
		3028	LOG llevInfo, "[ABT] $msg\n";
		3029	LOG llevInfo, "[ABT] $_\n" for @bt;
		3030	--$_log_backtrace;
2427	})->();	3031	};
		3032	} else {
		3033	LOG llevInfo, "[ABT] $msg\n";
		3034	LOG llevInfo, "[ABT] [suppressed]\n";
2428	},	3035	}
2429	);	3036	}
		3037
		3038	# load additional modules
		3039	use cf::pod;
2430		3040
2431	END { cf::emergency_save }	3041	END { cf::emergency_save }
2432		3042
2433	1	3043	1
2434		3044

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