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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	76	our $NEXT_TICK;
50	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
51		82
52	our %CFG;	83	our %CFG;
53		84
54	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	86	our $RUNTIME;
56		87
57	our %PLAYER; # all users	88	our %PLAYER; # all users
58	our %MAP; # all maps	89	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		91
65	# 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 ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		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 $tick_start; # for load detecting purposes
		98
68	binmode STDOUT;	99	binmode STDOUT;
69	binmode STDERR;	100	binmode STDERR;
70		101
71	# read virtual server time, if available	102	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
74	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
75	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
76	}	107	}
77		108
78	mkdir cf::localdir;	109	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		111
84	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
85		115
86	#############################################################################	116	#############################################################################
87		117
88	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
89		119
…		…
96	=item $cf::RUNTIME	126	=item $cf::RUNTIME
97		127
98	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
99	every server tick.	129	every server tick.
100		130
101	=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
102		134
103	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
104	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.
105		139
106	=item $cf::NOW	140	=item $cf::NOW
107		141
108	The time of the last (current) server tick.	142	The time of the last (current) server tick.
109		143
110	=item $cf::TICK	144	=item $cf::TICK
111		145
112	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.
113		157
114	=item %cf::CFG	158	=item %cf::CFG
115		159
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
117	from wherever your confdir points to.	161	from wherever your confdir points to.
118		162
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		164
121	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
122	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
123	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.
124	window of cpu time available, or simply to synchronise to the server tick.
125		168
126	=back	169	=back
127		170
128	=cut	171	=cut
129		172
130	BEGIN {	173	BEGIN {
131	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	175	my $msg = join "", @_;
133	utf8::encode $msg;
134		176
135	$msg .= "\n"	177	$msg .= "\n"
136	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
137		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
138	LOG llevError, $msg;	183	LOG llevError, $msg;
139	};	184	};
140	}	185	}
141		186
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@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';
147	@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)
148		194
149	# 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
150	# within the Safe compartment.	196	# within the Safe compartment.
151	for my $pkg (qw(	197	for my $pkg (qw(
152	cf::global cf::attachable	198	cf::global cf::attachable
…		…
188	$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;
189	$d	235	$d
190	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
191	}	237	}
192		238
193	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
194		240
195	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
196		242
197	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
198		244
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
207		246
208	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		248
217	=item cf::lock_wait $string	249	=item cf::lock_wait $string
218		250
219	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
220		252
…		…
226	returned.	258	returned.
227		259
228	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
229	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
230		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
231	=cut	267	=cut
232		268
233	our %LOCK;	269	our %LOCK;
234		270
235	sub lock_wait($) {	271	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
256	}	292	}
257	}	293	}
258		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
259	sub freeze_mainloop {	301	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
261		303
262	my $guard = Coro::guard { $TICK_WATCHER->start };	304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
263	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
264	$guard	308	$guard
265	}	309	}
266		310
267	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
289		333
290	sub sync_job(&) {	334	sub sync_job(&) {
291	my ($job) = @_;	335	my ($job) = @_;
292		336
293	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
294	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
296		342
297	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
309		355
310	while ($busy) {	356	while ($busy) {
311	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
312	}	358	}
313		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
314	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
315	} else {	368	} else {
316	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
317		370
318	$job->()	371	$job->()
…		…
338		391
339	$coro	392	$coro
340	}	393	}
341		394
342	sub write_runtime {	395	sub write_runtime {
343	return unless $TICK_WATCHER->is_active;	396	my $runtime = "$LOCALDIR/runtime";
344		397
345	my $runtime = cf::localdir . "/runtime";	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";
346		404
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348	or return;	406	or return;
349		407
		408	my $value = $cf::RUNTIME + 90 + 10;
350	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
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
352	and return;	413	and return;
353		414
		415	# always fsync - this file is important
354	aio_fsync $fh	416	aio_fsync $fh
355	and return;	417	and return;
356		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
357	close $fh	422	close $fh
358	or return;	423	or return;
359		424
360	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
361	and return;	426	and return;
362		427
		428	warn "runtime file written.\n";
		429
363	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	442	}
365		443
366	=back	444	=back
367		445
368	=cut	446	=cut
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	578	our @CB_MAP = ();
501		579
502	my %attachment;	580	my %attachment;
503		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
504	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
506		590
507	use sort 'stable';	591	use sort 'stable';
508		592
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
543		627
544	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		632
549	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	634	my $pkg = shift @arg;
551		635
552	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
593	if (ref $_[0]) {	677	if (ref $_[0]) {
594	_object_attach @_;	678	_object_attach @_;
595	} else {	679	} else {
596	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
597	}	681	}
		682	_recalc_want;
598	};	683	};
599		684
600	# all those should be optimised	685	# all those should be optimised
601	sub cf::attachable::detach {	686	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
606	reattach ($obj);	691	reattach ($obj);
607	} else {	692	} else {
608	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
609	}	694	}
		695	_recalc_want;
610	};	696	};
611		697
612	sub cf::attachable::attached {	698	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
614		700
…		…
679	# object support	765	# object support
680		766
681	sub reattach {	767	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		772
685	my $registry = $obj->registry;	773	my $registry = $obj->registry;
686		774
687	@$registry = ();	775	@$registry = ();
688		776
…		…
735	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
736		824
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	828	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	829	close $fh;
742		830
743	if (@$objs) {	831	if (@$objs) {
744	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) {
745	chmod SAVE_MODE, $fh;	833	chmod SAVE_MODE, $fh;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	834	my $data = Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	835	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	836	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	837	close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
751	}	839	}
752	} else {	840	} else {
753	aio_unlink "$filename.pst";	841	aio_unlink "$filename.pst";
…		…
785	or return;	873	or return;
786	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
787	}	875	}
788		876
789	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
791	return ($data, $av);	879	return ($data, $av);
792	}	880	}
793		881
794	#############################################################################	882	#############################################################################
795	# command handling &c	883	# command handling &c
…		…
922	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
923		1011
924	=cut	1012	=cut
925		1013
926	sub playerdir($) {	1014	sub playerdir($) {
927	cf::localdir	1015	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1017	}
933		1018
934	sub path($) {	1019	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1021
937	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
938	}	1023	}
939		1024
940	sub find_active($) {	1025	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
945		1030
946	sub exists($) {	1031	sub exists($) {
947	my ($login) = @_;	1032	my ($login) = @_;
948		1033
949	$cf::PLAYER{$login}	1034	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1035	or cf::sync_job { !aio_stat path $login }
951	}	1036	}
952		1037
953	sub find($) {	1038	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1039	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1040	my $login = $_[0];
956		1041
957	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
958		1043
959	$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
960	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
961	or return;	1053	or return;
962	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
963	}	1055	}
964	}	1056	}
…		…
1001		1093
1002	=cut	1094	=cut
1003		1095
1004	sub quit_character {	1096	sub quit_character {
1005	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1006		1100
1007	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1008	$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
1009		1103
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1015	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1019	$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
1020	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;
1021	}	1135	}
1022		1136
1023	=item cf::player::list_logins	1137	=item cf::player::list_logins
1024		1138
1025	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
1026	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1027		1141
1028	=cut	1142	=cut
1029		1143
1030	sub list_logins {	1144	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1146	or return [];
1033		1147
1034	my @logins;	1148	my @logins;
1035		1149
1036	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1053	=cut	1167	=cut
1054		1168
1055	sub maps($) {	1169	sub maps($) {
1056	my ($pl) = @_;	1170	my ($pl) = @_;
1057		1171
		1172	$pl = ref $pl ? $pl->ob->name : $pl;
		1173
1058	my $files = aio_readdir playerdir $pl	1174	my $files = aio_readdir playerdir $pl
1059	or return;	1175	or return;
1060		1176
1061	my @paths;	1177	my @paths;
1062		1178
1063	for (@$files) {	1179	for (@$files) {
1064	utf8::decode $_;	1180	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1181	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1182	next unless /^$PATH_SEP/o;
1067		1183
1068	s/\.map$//;	1184	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1185	}
1071		1186
1072	\@paths	1187	\@paths
1073	}	1188	}
1074		1189
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1076		1191
1077	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1078		1193
1079	=cut	1194	=cut
1080		1195
1081	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1082	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1083		1198
1084	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1085		1200
1086	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1087	}	1202	}
1088		1203
1089	package cf;	1204	=item $player->ext_event ($type, %msg)
		1205
		1206	Sends an ext event to the client.
		1207
		1208	=cut
		1209
		1210	sub ext_event($$%) {
		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	}
1090		1244
1091	=back	1245	=back
1092
1093		1246
1094	=head3 cf::map	1247	=head3 cf::map
1095		1248
1096	=over 4	1249	=over 4
1097		1250
…		…
1101		1254
1102	use Fcntl;	1255	use Fcntl;
1103	use Coro::AIO;	1256	use Coro::AIO;
1104		1257
1105	use overload	1258	use overload
1106	'""' => \&as_string;	1259	'""' => \&as_string,
		1260	fallback => 1;
1107		1261
1108	our $MAX_RESET = 3600;	1262	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1263	our $DEFAULT_RESET = 3000;
1110		1264
1111	sub generate_random_map {	1265	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1266	my ($self, $rmp) = @_;
1113
1114	# mit "rum" bekleckern, nicht	1267	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1268	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1278	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1279	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1280	)
1128	}	1281	}
1129		1282
		1283	=item cf::map->register ($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
1130	sub register {	1291	sub register {
1131	my (undef, $regex) = @_;	1292	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1293	my $pkg = caller;
1133		1294
1134	no strict;	1295	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1296	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1297
1137	$EXT_MAP{$pkg} = qr<$regex>;	1298	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1299	}
1139		1300
1140	# also paths starting with '/'	1301	# also paths starting with '/'
1141	$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	}
1142		1313
1143	sub normalise {	1314	sub normalise {
1144	my ($path, $base) = @_;	1315	my ($path, $base) = @_;
		1316
		1317	$path = "$path"; # make sure its a string
		1318
		1319	$path =~ s/\.map$//;
1145		1320
1146	# map plan:	1321	# map plan:
1147	#	1322	#
1148	# /! non-realised random map exit (special hack!)	1323	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1324	# {... are special paths that are not being touched
…		…
1177		1352
1178	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
1179		1354
1180	$path = normalise $path, $base;	1355	$path = normalise $path, $base;
1181		1356
1182	for my $pkg (keys %EXT_MAP) {	1357	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1358	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1359	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1360	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1361	$self->init; # pass $1 etc.
1187	return $self;	1362	return $self;
1188	}	1363	}
1189	}	1364	}
1190		1365
1191	Carp::carp "unable to resolve path '$path'.";	1366	Carp::carp "unable to resolve path '$path' (base '$base').";
1192	()	1367	()
1193	}	1368	}
1194		1369
1195	sub init {	1370	sub init {
1196	my ($self) = @_;	1371	my ($self) = @_;
…		…
1211		1386
1212	# the original (read-only) location	1387	# the original (read-only) location
1213	sub load_path {	1388	sub load_path {
1214	my ($self) = @_;	1389	my ($self) = @_;
1215		1390
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1391	"$MAPDIR/$self->{path}.map"
1217	}	1392	}
1218		1393
1219	# the temporary/swap location	1394	# the temporary/swap location
1220	sub save_path {	1395	sub save_path {
1221	my ($self) = @_;	1396	my ($self) = @_;
1222		1397
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1398	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1399	"$TMPDIR/$path.map"
1225	}	1400	}
1226		1401
1227	# the unique path, undef == no special unique path	1402	# the unique path, undef == no special unique path
1228	sub uniq_path {	1403	sub uniq_path {
1229	my ($self) = @_;	1404	my ($self) = @_;
1230		1405
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1406	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1407	"$UNIQUEDIR/$path"
1233	}	1408	}
1234		1409
1235	# and all this just because we cannot iterate over	1410	# and all this just because we cannot iterate over
1236	# all maps in C++...	1411	# all maps in C++...
1237	sub change_all_map_light {	1412	sub change_all_map_light {
…		…
1239		1414
1240	$_->change_map_light ($change)	1415	$_->change_map_light ($change)
1241	for grep $_->outdoor, values %cf::MAP;	1416	for grep $_->outdoor, values %cf::MAP;
1242	}	1417	}
1243		1418
		1419	sub decay_objects {
		1420	my ($self) = @_;
		1421
		1422	return if $self->{deny_reset};
		1423
		1424	$self->do_decay_objects;
		1425	}
		1426
1244	sub unlink_save {	1427	sub unlink_save {
1245	my ($self) = @_;	1428	my ($self) = @_;
1246		1429
1247	utf8::encode (my $save = $self->save_path);	1430	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1431	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1432	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1433	}
1251		1434
1252	sub load_header_from($) {	1435	sub load_header_from($) {
1253	my ($self, $path) = @_;	1436	my ($self, $path) = @_;
1254		1437
1255	utf8::encode $path;	1438	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1439	#aio_open $path, O_RDONLY, 0
1257	or return;	1440	# or return;
1258		1441
1259	$self->_load_header ($path)	1442	$self->_load_header ($path)
1260	or return;	1443	or return;
1261		1444
1262	$self->{load_path} = $path;	1445	$self->{load_path} = $path;
1263		1446
1264	1	1447	1
1265	}	1448	}
1266		1449
1267	sub load_orig {	1450	sub load_header_orig {
1268	my ($self) = @_;	1451	my ($self) = @_;
1269		1452
1270	$self->load_header_from ($self->load_path)	1453	$self->load_header_from ($self->load_path)
1271	}	1454	}
1272		1455
1273	sub load_temp {	1456	sub load_header_temp {
1274	my ($self) = @_;	1457	my ($self) = @_;
1275		1458
1276	$self->load_header_from ($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	$self->instantiate;
1277	}	1479	}
1278		1480
1279	sub load_header {	1481	sub load_header {
1280	my ($self) = @_;	1482	my ($self) = @_;
1281		1483
1282	if ($self->load_temp) {	1484	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1485	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1486	} else {
1289	$self->load_orig	1487	$self->load_header_orig
1290	or return;	1488	or return;
1291		1489	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	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;
1297		1497
1298	1	1498	1
1299	}	1499	}
1300		1500
1301	sub find;	1501	sub find;
…		…
1314	$map->{last_save} = $cf::RUNTIME;	1514	$map->{last_save} = $cf::RUNTIME;
1315		1515
1316	$map->load_header	1516	$map->load_header
1317	or return;	1517	or return;
1318		1518
1319	if ($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;
1320	$map->reset;	1522	$map->reset;
1321	undef $guard;	1523	undef $guard;
1322	$map = find $path	1524	return find $path;
1323	or return;
1324	}	1525	}
1325		1526
1326	$cf::MAP{$path} = $map	1527	$cf::MAP{$path} = $map
1327	}	1528	}
1328	}	1529	}
		1530
		1531	sub pre_load { }
		1532	sub post_load { }
1329		1533
1330	sub load {	1534	sub load {
1331	my ($self) = @_;	1535	my ($self) = @_;
1332		1536
		1537	local $self->{deny_reset} = 1; # loading can take a long time
		1538
1333	my $path = $self->{path};	1539	my $path = $self->{path};
		1540
		1541	{
1334	my $guard = cf::lock_acquire "map_load:$path";	1542	my $guard = cf::lock_acquire "map_load:$path";
1335		1543
1336	return if $self->in_memory != cf::MAP_SWAPPED;	1544	return if $self->in_memory != cf::MAP_SWAPPED;
1337		1545
1338	$self->in_memory (cf::MAP_LOADING);	1546	$self->in_memory (cf::MAP_LOADING);
1339		1547
1340	$self->alloc;	1548	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)
1342	or return;
1343		1549
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1550	$self->pre_load;
1345	if delete $self->{load_original};
1346
1347	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {
1350	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);
1352	}
1353	}
1354
1355	Coro::cede;
1356
1357	# now do the right thing for maps
1358	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;	1551	Coro::cede;
1365	$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;
1366	$self->difficulty ($self->estimate_difficulty)	1570	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	1571	unless $self->difficulty;
1368	Coro::cede;	1572	Coro::cede;
		1573
		1574	unless ($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;
1369	$self->activate;	1581	$self->activate;
1370	}	1582	}
1371		1583
1372	$self->in_memory (cf::MAP_IN_MEMORY);	1584	$self->in_memory (cf::MAP_IN_MEMORY);
		1585	}
		1586
		1587	$self->post_load;
1373	}	1588	}
1374		1589
1375	sub customise_for {	1590	sub customise_for {
1376	my ($self, $ob) = @_;	1591	my ($self, $ob) = @_;
1377		1592
1378	return find "~" . $ob->name . "/" . $self->{path}	1593	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	1594	if $self->per_player;
		1595
		1596	# return find "?party/" . $ob->name . "/" . $self->{path}
		1597	# if $self->per_party;
1380		1598
1381	$self	1599	$self
1382	}	1600	}
1383		1601
1384	# 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
…		…
1416		1634
1417	cf::sync_job { $map->load };	1635	cf::sync_job { $map->load };
1418	}	1636	}
1419		1637
1420	our %MAP_PREFETCH;	1638	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	1639	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		1640
1434	sub find_async {	1641	sub find_async {
1435	my ($path, $origin) = @_;	1642	my ($path, $origin) = @_;
1436		1643
1437	$path = normalise $path, $origin && $origin->{path};	1644	$path = normalise $path, $origin && $origin->{path};
1438		1645
1439	if (my $map = $cf::MAP{$path}) {	1646	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1441	}	1648	}
1442		1649
1443	$MAP_PREFETCH{$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	};
1444	$MAP_PREFETCHER->ready;	1663	$MAP_PREFETCHER->prio (6);
1445		1664
1446	()	1665	()
1447	}	1666	}
1448		1667
1449	sub save {	1668	sub save {
…		…
1494		1713
1495	sub reset_at {	1714	sub reset_at {
1496	my ($self) = @_;	1715	my ($self) = @_;
1497		1716
1498	# TODO: safety, remove and allow resettable per-player maps	1717	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	1718	return 1e99 if $self->{deny_reset};
1501		1719
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1720	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1721	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		1722
…		…
1509	my ($self) = @_;	1727	my ($self) = @_;
1510		1728
1511	$self->reset_at <= $cf::RUNTIME	1729	$self->reset_at <= $cf::RUNTIME
1512	}	1730	}
1513		1731
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	1732	sub reset {
1529	my ($self) = @_;	1733	my ($self) = @_;
1530		1734
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	1735	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		1736
1533	return if $self->players;	1737	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		1738
1536	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	}
1537		1750
1538	delete $cf::MAP{$self->path};	1751	delete $cf::MAP{$self->path};
1539		1752
1540	$self->in_memory (cf::MAP_SWAPPED);
1541	$self->clear;	1753	$self->clear;
1542		1754
1543	$_->clear_links_to ($self) for values %cf::MAP;	1755	$_->clear_links_to ($self) for values %cf::MAP;
1544		1756
1545	$self->unlink_save;	1757	$self->unlink_save;
…		…
1549	my $nuke_counter = "aaaa";	1761	my $nuke_counter = "aaaa";
1550		1762
1551	sub nuke {	1763	sub nuke {
1552	my ($self) = @_;	1764	my ($self) = @_;
1553		1765
		1766	delete $cf::MAP{$self->path};
		1767
		1768	$self->unlink_save;
		1769
		1770	bless $self, "cf::map";
		1771	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	1772	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	1773	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1775
		1776	$cf::MAP{$self->path} = $self;
		1777
1557	$self->reset; # polite request, might not happen	1778	$self->reset; # polite request, might not happen
		1779	}
		1780
		1781	=item $maps = cf::map::tmp_maps
		1782
		1783	Returns an arrayref with all map paths of currently instantiated and saved
		1784	maps.
		1785
		1786	=cut
		1787
		1788	sub tmp_maps() {
		1789	[
		1790	map {
		1791	utf8::decode $_;
		1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
		1793	? normalise $_
		1794	: ()
		1795	} @{ aio_readdir $TMPDIR or [] }
		1796	]
1558	}	1797	}
1559		1798
1560	=item cf::map::unique_maps	1799	=item cf::map::unique_maps
1561		1800
1562	Returns an arrayref of paths of all shared maps that have	1801	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	1802	instantiated unique items. May block.
1564		1803
1565	=cut	1804	=cut
1566		1805
1567	sub unique_maps() {	1806	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1807	[
1569	or return;	1808	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	1809	utf8::decode $_;
1575	next if /\.pst$/;	1810	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o
1576	next unless /^$PATH_SEP/o;	1811	? normalise $_
1577		1812	: ()
1578	s/\.map$//;	1813	} @{ aio_readdir $UNIQUEDIR or [] }
1579	push @paths, $_;
1580	}	1814	]
1581
1582	\@paths
1583	}	1815	}
1584		1816
1585	package cf;	1817	package cf;
1586		1818
1587	=back	1819	=back
…		…
1678	=cut	1910	=cut
1679		1911
1680	sub link_map {	1912	sub link_map {
1681	unless ($LINK_MAP) {	1913	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	1914	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	1915	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	1916	$LINK_MAP->load;
1685	}	1917	}
1686		1918
1687	$LINK_MAP	1919	$LINK_MAP
1688	}	1920	}
…		…
1693	$self->deactivate_recursive;	1925	$self->deactivate_recursive;
1694		1926
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	1927	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		1928
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1929	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	1930	if $self->map && $self->map->{path} ne "{link}";
1699		1931
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	1932	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	1933	}
1702		1934
1703	sub cf::object::player::leave_link {	1935	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	1936	my ($self, $map, $x, $y) = @_;
		1937
		1938	return unless $self->contr->active;
1705		1939
1706	my $link_pos = delete $self->{_link_pos};	1940	my $link_pos = delete $self->{_link_pos};
1707		1941
1708	unless ($map) {	1942	unless ($map) {
1709	# restore original map position	1943	# restore original map position
…		…
1727	$map->load;	1961	$map->load;
1728	$map->load_diag;	1962	$map->load_diag;
1729		1963
1730	return unless $self->contr->active;	1964	return unless $self->contr->active;
1731	$self->activate_recursive;	1965	$self->activate_recursive;
		1966
		1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732	$self->enter_map ($map, $x, $y);	1968	$self->enter_map ($map, $x, $y);
1733	}	1969	}
1734		1970
1735	cf::player->attach (
1736	on_logout => sub {
1737	my ($pl) = @_;
1738
1739	# abort map switching before logout
1740	if ($pl->ob->{_link_pos}) {
1741	cf::sync_job {
1742	$pl->ob->leave_link
1743	};
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748
1749	# try to abort aborted map switching on player login :)
1750	# should happen only on crashes
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766
1767	=item $player_object->goto ($path, $x, $y)	1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1768		1972
		1973	Moves the player to the given map-path and coordinates by first freezing
		1974	her, loading and preparing them map, calling the provided $check callback
		1975	that has to return the map if sucecssful, and then unfreezes the player on
		1976	the new (success) or old (failed) map position.
		1977
1769	=cut	1978	=cut
		1979
		1980	our $GOTOGEN;
1770		1981
1771	sub cf::object::player::goto {	1982	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y, $check) = @_;
		1984
		1985	# do generation counting so two concurrent goto's will be executed in-order
		1986	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		1987
1774	$self->enter_link;	1988	$self->enter_link;
1775		1989
1776	(async {	1990	(async {
		1991	my $map = eval {
1777	my $map = cf::map::find $path;	1992	my $map = cf::map::find $path;
		1993
		1994	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	1995	$map = $map->customise_for ($self);
1779		1996	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	1997	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1998	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1999	}
1784		2000
		2001	$map
		2002	};
		2003
		2004	if ($@) {
		2005	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2006	LOG llevError | logBacktrace, Carp::longmess $@;
		2007	}
		2008
		2009	if ($gen == $self->{_goto_generation}) {
		2010	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2011	$self->leave_link ($map, $x, $y);
		2012	}
1786	})->prio (1);	2013	})->prio (1);
1787	}	2014	}
1788		2015
1789	=item $player_object->enter_exit ($exit_object)	2016	=item $player_object->enter_exit ($exit_object)
1790		2017
…		…
1792		2019
1793	sub parse_random_map_params {	2020	sub parse_random_map_params {
1794	my ($spec) = @_;	2021	my ($spec) = @_;
1795		2022
1796	my $rmp = { # defaults	2023	my $rmp = { # defaults
1797	xsize => 10,	2024	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2025	ysize => (cf::rndm 15, 40),
		2026	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2027	#layout => string,
1799	};	2028	};
1800		2029
1801	for (split /\n/, $spec) {	2030	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2031	my ($k, $v) = split /\s+/, $_, 2;
1803		2032
…		…
1807	$rmp	2036	$rmp
1808	}	2037	}
1809		2038
1810	sub prepare_random_map {	2039	sub prepare_random_map {
1811	my ($exit) = @_;	2040	my ($exit) = @_;
		2041
		2042	my $guard = cf::lock_acquire "exit_prepare:$exit";
1812		2043
1813	# all this does is basically replace the /! path by	2044	# all this does is basically replace the /! path by
1814	# a new random map path (?random/...) with a seed	2045	# a new random map path (?random/...) with a seed
1815	# that depends on the exit object	2046	# that depends on the exit object
1816		2047
1817	my $rmp = parse_random_map_params $exit->msg;	2048	my $rmp = parse_random_map_params $exit->msg;
1818		2049
1819	if ($exit->map) {	2050	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2051	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2052	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2053	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2054	$rmp->{origin_y} = $exit->y;
1824	}	2055	}
1825		2056
1826	$rmp->{random_seed} ||= $exit->random_seed;	2057	$rmp->{random_seed} ||= $exit->random_seed;
1827		2058
1828	my $data = cf::to_json $rmp;	2059	my $data = cf::to_json $rmp;
1829	my $md5 = Digest::MD5::md5_hex $data;	2060	my $md5 = Digest::MD5::md5_hex $data;
		2061	my $meta = "$RANDOMDIR/$md5.meta";
1830		2062
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2063	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2064	aio_write $fh, 0, (length $data), $data, 0;
		2065	undef $fh;
		2066	aio_rename "$meta~", $meta;
1833		2067
1834	$exit->slaying ("?random/$md5");	2068	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2069	$exit->msg (undef);
1836	}	2070	}
1837	}	2071	}
1838		2072
1839	sub cf::object::player::enter_exit {	2073	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2074	my ($self, $exit) = @_;
1841		2075
1842	return unless $self->type == cf::PLAYER;	2076	return unless $self->type == cf::PLAYER;
		2077
		2078	if ($exit->slaying eq "/!") {
		2079	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2080	# the problem is that $exit might not survive long enough
		2081	# so it needs to be done right now, right here
		2082	cf::sync_job { prepare_random_map $exit };
		2083	}
		2084
		2085	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2086	my $hp = $exit->stats->hp;
		2087	my $sp = $exit->stats->sp;
1843		2088
1844	$self->enter_link;	2089	$self->enter_link;
1845		2090
1846	(async {	2091	(async {
1847	$self->deactivate_recursive; # just to be sure	2092	$self->deactivate_recursive; # just to be sure
1848	unless (eval {	2093	unless (eval {
1849	prepare_random_map $exit	2094	$self->goto ($slaying, $hp, $sp);
1850	if $exit->slaying eq "/!";
1851
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1854		2095
1855	1;	2096	1;
1856	}) {	2097	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2098	$self->message ("Something went wrong deep within the crossfire server. "
1858	. "I'll try to bring you back to the map you were before. "	2099	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2100	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2101	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2102
1862	warn "ERROR in enter_exit: $@";	2103	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2104	$self->leave_link;
1864	}	2105	}
1865	})->prio (1);	2106	})->prio (1);
…		…
1878		2119
1879	sub cf::client::send_drawinfo {	2120	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2121	my ($self, $text, $flags) = @_;
1881		2122
1882	utf8::encode $text;	2123	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2125	}
1885		2126
		2127	=item $client->ext_event ($type, %msg)
		2128
		2129	Sends an exti event to the client.
		2130
		2131	=cut
		2132
		2133	sub cf::client::ext_event($$%) {
		2134	my ($self, $type, %msg) = @_;
		2135
		2136	$msg{msgtype} = "event_$type";
		2137	$self->send_packet ("ext " . cf::to_json \%msg);
		2138	}
1886		2139
1887	=item $success = $client->query ($flags, "text", \&cb)	2140	=item $success = $client->query ($flags, "text", \&cb)
1888		2141
1889	Queues a query to the client, calling the given callback with	2142	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1919	# get handled first	2172	# get handled first
1920	my $queue = delete $ns->{query_queue}	2173	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2174	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2175
1923	(shift @$queue)->[1]->($msg);	2176	(shift @$queue)->[1]->($msg);
		2177	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2178
1925	push @{ $ns->{query_queue} }, @$queue;	2179	push @{ $ns->{query_queue} }, @$queue;
1926		2180
1927	if (@{ $ns->{query_queue} } == @$queue) {	2181	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	2182	if (@$queue) {
…		…
1986		2240
1987	# here we export the classes and methods available to script code	2241	# here we export the classes and methods available to script code
1988		2242
1989	=pod	2243	=pod
1990		2244
1991	The following fucntions and emthods are available within a safe environment:	2245	The following functions and methods are available within a safe environment:
1992		2246
1993	cf::object contr pay_amount pay_player map	2247	cf::object contr pay_amount pay_player map
1994	cf::object::player player	2248	cf::object::player player
1995	cf::player peaceful	2249	cf::player peaceful
1996	cf::map trigger	2250	cf::map trigger
…		…
2081	#############################################################################	2335	#############################################################################
2082		2336
2083	=head2 EXTENSION DATABASE SUPPORT	2337	=head2 EXTENSION DATABASE SUPPORT
2084		2338
2085	Crossfire maintains a very simple database for extension use. It can	2339	Crossfire maintains a very simple database for extension use. It can
2086	currently store anything that can be serialised using Storable, which	2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2087	excludes objects.	2341	convert to/from binary).
2088		2342
2089	The parameter C<$family> should best start with the name of the extension	2343	The parameter C<$family> should best start with the name of the extension
2090	using it, it should be unique.	2344	using it, it should be unique.
2091		2345
2092	=over 4	2346	=over 4
2093		2347
2094	=item $hashref = cf::db_get $family
2095
2096	Return a hashref for use by the extension C<$family>, which can be
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099
2100	=item $value = cf::db_get $family => $key	2348	=item $value = cf::db_get $family => $key
2101		2349
2102	Returns a single value from the database	2350	Returns a single value from the database.
2103
2104	=item cf::db_put $family => $hashref
2105
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108		2351
2109	=item cf::db_put $family => $key => $value	2352	=item cf::db_put $family => $key => $value
2110		2353
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you	2354	Stores the given C<$value> in the family.
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121		2355
2122	=cut	2356	=cut
2123		2357
2124	our $DB;	2358	our $DB;
2125		2359
2126	{	2360	sub db_init {
2127	my $path = cf::localdir . "/database.pst";	2361	unless ($DB) {
		2362	$DB = BDB::db_create $DB_ENV;
2128		2363
2129	sub db_load() {	2364	cf::sync_job {
2130	$DB = stat $path ? Storable::retrieve $path : { };	2365	eval {
2131	}	2366	$DB->set_flags (BDB::CHKSUM);
2132		2367
2133	my $pid;	2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2134		2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2135	sub db_save() {	2370	cf::cleanup "db_open(db): $!" if $!;
2136	waitpid $pid, 0 if $pid;	2371	};
2137	if (0 == ($pid = fork)) {	2372	cf::cleanup "db_open(db): $@" if $@;
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}	2373	};
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	2374	}
		2375	}
2155		2376
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}
2160
2161	sub db_get($;$) {	2377	sub db_get($$) {
2162	@_ >= 2	2378	my $key = "$_[0]/$_[1]";
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		2379
		2380	cf::sync_job {
		2381	BDB::db_get $DB, undef, $key, my $data;
		2382
		2383	$! ? ()
		2384	: $data
		2385	}
		2386	}
		2387
2167	sub db_put($$;$) {	2388	sub db_put($$$) {
2168	if (@_ >= 3) {	2389	BDB::dbreq_pri 4;
2169	$DB->{$_[0]}{$_[1]} = $_[2];	2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2170	} else {	2391	}
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		2392
2176	cf::global->attach (	2393	=item cf::cache $id => [$paths...], $processversion => $process
2177	prio => 10000,	2394
2178	on_cleanup => sub {	2395	Generic caching function that returns the value of the resource $id,
2179	db_sync;	2396	caching and regenerating as required.
		2397
		2398	This function can block.
		2399
		2400	=cut
		2401
		2402	sub cache {
		2403	my ($id, $src, $processversion, $process) = @_;
		2404
		2405	my $meta =
		2406	join "\x00",
		2407	$processversion,
		2408	map {
		2409	aio_stat $_
		2410	and Carp::croak "$_: $!";
		2411
		2412	($_, (stat _)[7,9])
		2413	} @$src;
		2414
		2415	my $dbmeta = db_get cache => "$id/meta";
		2416	if ($dbmeta ne $meta) {
		2417	# changed, we may need to process
		2418
		2419	my @data;
		2420	my $md5;
		2421
		2422	for (0 .. $#$src) {
		2423	0 <= aio_load $src->[$_], $data[$_]
		2424	or Carp::croak "$src->[$_]: $!";
2180	},	2425	}
2181	);	2426
		2427	# if processing is expensive, check
		2428	# checksum first
		2429	if (1) {
		2430	$md5 =
		2431	join "\x00",
		2432	$processversion,
		2433	map {
		2434	Coro::cede;
		2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2436	} 0.. $#$src;
		2437
		2438
		2439	my $dbmd5 = db_get cache => "$id/md5";
		2440	if ($dbmd5 eq $md5) {
		2441	db_put cache => "$id/meta", $meta;
		2442
		2443	return db_get cache => "$id/data";
		2444	}
		2445	}
		2446
		2447	my $t1 = Time::HiRes::time;
		2448	my $data = $process->(\@data);
		2449	my $t2 = Time::HiRes::time;
		2450
		2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2452
		2453	db_put cache => "$id/data", $data;
		2454	db_put cache => "$id/md5" , $md5;
		2455	db_put cache => "$id/meta", $meta;
		2456
		2457	return $data;
		2458	}
		2459
		2460	db_get cache => "$id/data"
		2461	}
		2462
		2463	=item fork_call { }, $args
		2464
		2465	Executes the given code block with the given arguments in a seperate
		2466	process, returning the results. Everything must be serialisable with
		2467	Coro::Storable. May, of course, block. Note that the executed sub may
		2468	never block itself or use any form of Event handling.
		2469
		2470	=cut
		2471
		2472	sub fork_call(&@) {
		2473	my ($cb, @args) = @_;
		2474
		2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2476	# or die "socketpair: $!";
		2477	pipe my $fh1, my $fh2
		2478	or die "pipe: $!";
		2479
		2480	if (my $pid = fork) {
		2481	close $fh2;
		2482
		2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2484	$res = Coro::Storable::thaw $res;
		2485
		2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2487
		2488	die $$res unless "ARRAY" eq ref $res;
		2489
		2490	return wantarray ? @$res : $res->[-1];
		2491	} else {
		2492	reset_signals;
		2493	local $SIG{__WARN__};
		2494	local $SIG{__DIE__};
		2495	eval {
		2496	close $fh1;
		2497
		2498	my @res = eval { $cb->(@args) };
		2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2500	};
		2501
		2502	warn $@ if $@;
		2503	_exit 0;
		2504	}
2182	}	2505	}
2183		2506
2184	#############################################################################	2507	#############################################################################
2185	# the server's main()	2508	# the server's init and main functions
		2509
		2510	sub load_facedata($) {
		2511	my ($path) = @_;
		2512
		2513	warn "loading facedata from $path\n";
		2514
		2515	my $facedata;
		2516	0 < aio_load $path, $facedata
		2517	or die "$path: $!";
		2518
		2519	$facedata = Coro::Storable::thaw $facedata;
		2520
		2521	$facedata->{version} == 2
		2522	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2523
		2524	{
		2525	my $faces = $facedata->{faceinfo};
		2526
		2527	while (my ($face, $info) = each %$faces) {
		2528	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2532	Coro::cede;
		2533	}
		2534
		2535	while (my ($face, $info) = each %$faces) {
		2536	next unless $info->{smooth};
		2537	my $idx = cf::face::find $face
		2538	or next;
		2539	if (my $smooth = cf::face::find $info->{smooth}) {
		2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2541	} else {
		2542	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2543	}
		2544	Coro::cede;
		2545	}
		2546	}
		2547
		2548	{
		2549	my $anims = $facedata->{animinfo};
		2550
		2551	while (my ($anim, $info) = each %$anims) {
		2552	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2553	Coro::cede;
		2554	}
		2555
		2556	cf::anim::invalidate_all; # d'oh
		2557	}
		2558
		2559	1
		2560	}
		2561
		2562	sub reload_regions {
		2563	load_resource_file "$MAPDIR/regions"
		2564	or die "unable to load regions file\n";
		2565	}
		2566
		2567	sub reload_facedata {
		2568	load_facedata "$DATADIR/facedata"
		2569	or die "unable to load facedata\n";
		2570	}
		2571
		2572	sub reload_archetypes {
		2573	load_resource_file "$DATADIR/archetypes"
		2574	or die "unable to load archetypes\n";
		2575	}
		2576
		2577	sub reload_treasures {
		2578	load_resource_file "$DATADIR/treasures"
		2579	or die "unable to load treasurelists\n";
		2580	}
		2581
		2582	sub reload_resources {
		2583	warn "reloading resource files...\n";
		2584
		2585	reload_regions;
		2586	reload_facedata;
		2587	#reload_archetypes;#d#
		2588	reload_archetypes;
		2589	reload_treasures;
		2590
		2591	warn "finished reloading resource files\n";
		2592	}
		2593
		2594	sub init {
		2595	reload_resources;
		2596	}
2186		2597
2187	sub cfg_load {	2598	sub cfg_load {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	2599	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	2600	or return;
2190		2601
2191	local $/;	2602	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	2603	*CFG = YAML::Syck::Load <$fh>;
2193		2604
…		…
2207		2618
2208	sub main {	2619	sub main {
2209	# we must not ever block the main coroutine	2620	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	2621	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2622	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2623	(async {
2212	async { Event::one_event };	2624	Event::one_event;
		2625	})->prio (Coro::PRIO_MAX);
2213	};	2626	};
2214		2627
2215	cfg_load;	2628	cfg_load;
2216	db_load;	2629	db_init;
2217	load_extensions;	2630	load_extensions;
		2631
		2632	$TICK_WATCHER->start;
2218	Event::loop;	2633	Event::loop;
2219	}	2634	}
2220		2635
2221	#############################################################################	2636	#############################################################################
2222	# initialisation and cleanup	2637	# initialisation and cleanup
2223		2638
2224	# install some emergency cleanup handlers	2639	# install some emergency cleanup handlers
2225	BEGIN {	2640	BEGIN {
2226	for my $signal (qw(INT HUP TERM)) {	2641	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	2642	Event->signal (
		2643	reentrant => 0,
2228	data => WF_AUTOCANCEL,	2644	data => WF_AUTOCANCEL,
2229	signal => $signal,	2645	signal => $signal,
		2646	prio => 0,
2230	cb => sub {	2647	cb => sub {
2231	cf::cleanup "SIG$signal";	2648	cf::cleanup "SIG$signal";
2232	},	2649	},
2233	);	2650	);
2234	}	2651	}
2235	}	2652	}
…		…
2256	my $map = $cf::MAP{$path} or next;	2673	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	2674	$map->valid or next;
2258	$map->save;	2675	$map->save;
2259	}	2676	}
2260	warn "end emergency map save\n";	2677	warn "end emergency map save\n";
		2678
		2679	warn "begin emergency database checkpoint\n";
		2680	BDB::db_env_txn_checkpoint $DB_ENV;
		2681	warn "end emergency database checkpoint\n";
2261	};	2682	};
2262		2683
2263	warn "leave emergency perl save\n";	2684	warn "leave emergency perl save\n";
2264	}	2685	}
2265		2686
		2687	sub post_cleanup {
		2688	my ($make_core) = @_;
		2689
		2690	warn Carp::longmess "post_cleanup backtrace"
		2691	if $make_core;
		2692	}
		2693
2266	sub reload() {	2694	sub do_reload_perl() {
2267	# can/must only be called in main	2695	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	2696	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	2697	warn "can only reload from main coroutine";
2270	return;	2698	return;
2271	}	2699	}
2272		2700
2273	warn "reloading...";	2701	warn "reloading...";
2274		2702
2275	warn "freezing server";	2703	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	2704
		2705	cf::sync_job {
		2706	cf::write_runtime; # external watchdog should not bark
2277	cf::emergency_save;	2707	cf::emergency_save;
		2708	cf::write_runtime; # external watchdog should not bark
2278		2709
2279	warn "sync database to disk";	2710	warn "syncing database to disk";
2280	cf::db_sync;	2711	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		2712
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	2713	# if anything goes wrong in here, we should simply crash as we already saved
2285		2714
2286	warn "cancel all watchers";	2715	warn "cancelling all WF_AUTOCANCEL watchers";
2287	for (Event::all_watchers) {	2716	for (Event::all_watchers) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	2717	$_->cancel if $_->data & WF_AUTOCANCEL;
2289	}	2718	}
2290		2719
		2720	warn "flushing outstanding aio requests";
		2721	for (;;) {
		2722	BDB::flush;
		2723	IO::AIO::flush;
		2724	Coro::cede;
		2725	last unless IO::AIO::nreqs || BDB::nreqs;
		2726	warn "iterate...";
		2727	}
		2728
		2729	++$RELOAD;
		2730
2291	warn "cancel all extension coros";	2731	warn "cancelling all extension coros";
2292	$_->cancel for values %EXT_CORO;	2732	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();	2733	%EXT_CORO = ();
2294		2734
2295	warn "remove commands";	2735	warn "removing commands";
2296	%COMMAND = ();	2736	%COMMAND = ();
2297		2737
2298	warn "remove ext commands";	2738	warn "removing ext commands";
2299	%EXTCMD = ();	2739	%EXTCMD = ();
2300		2740
2301	warn "unload/nuke all extensions";	2741	warn "unloading/nuking all extensions";
2302	for my $pkg (@EXTS) {	2742	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";	2743	warn "... unloading $pkg";
2304		2744
2305	if (my $cb = $pkg->can ("unload")) {	2745	if (my $cb = $pkg->can ("unload")) {
2306	eval {	2746	eval {
…		…
2311		2751
2312	warn "... nuking $pkg";	2752	warn "... nuking $pkg";
2313	Symbol::delete_package $pkg;	2753	Symbol::delete_package $pkg;
2314	}	2754	}
2315		2755
2316	warn "unload all perl modules loaded from $LIBDIR";	2756	warn "unloading all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {	2757	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2758	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319		2759
2320	warn "removing <$k>";	2760	warn "... unloading $k";
2321	delete $INC{$k};	2761	delete $INC{$k};
2322		2762
2323	$k =~ s/\.pm$//;	2763	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;	2764	$k =~ s/\//::/g;
2325		2765
…		…
2328	}	2768	}
2329		2769
2330	Symbol::delete_package $k;	2770	Symbol::delete_package $k;
2331	}	2771	}
2332		2772
2333	warn "get rid of safe::, as good as possible";	2773	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	2774	Symbol::delete_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2775	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		2776
2337	warn "unload cf.pm \"a bit\"";	2777	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	2778	delete $INC{"cf.pm"};
		2779	delete $INC{"cf/pod.pm"};
2339		2780
2340	# don't, removes xs symbols, too,	2781	# don't, removes xs symbols, too,
2341	# and global variables created in xs	2782	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	2783	#Symbol::delete_package __PACKAGE__;
2343		2784
		2785	warn "unload completed, starting to reload now";
		2786
2344	warn "reloading cf.pm";	2787	warn "reloading cf.pm";
2345	require cf;	2788	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2789	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		2790
2348	warn "load config and database again";	2791	warn "loading config and database again";
2349	cf::cfg_load;	2792	cf::cfg_load;
2350	cf::db_load;
2351		2793
2352	warn "load extensions";	2794	warn "loading extensions";
2353	cf::load_extensions;	2795	cf::load_extensions;
2354		2796
2355	warn "reattach attachments to objects/players";	2797	warn "reattaching attachments to objects/players";
2356	_global_reattach;	2798	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	2799	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	2800	reattach $_ for values %MAP;
2359	};	2801	warn "reattaching attachments to players";
		2802	reattach $_ for values %PLAYER;
2360		2803
2361	if ($@) {	2804	warn "leaving sync_job";
		2805
		2806	1
		2807	} or do {
2362	warn $@;	2808	warn $@;
2363	warn "error while reloading, exiting.";	2809	warn "error while reloading, exiting.";
2364	exit 1;	2810	exit 1;
2365	}	2811	};
2366		2812
2367	warn "reloaded";	2813	warn "reloaded";
2368	};	2814	};
2369		2815
		2816	our $RELOAD_WATCHER; # used only during reload
		2817
		2818	sub reload_perl() {
		2819	# doing reload synchronously and two reloads happen back-to-back,
		2820	# coro crashes during coro_state_free->destroy here.
		2821
		2822	$RELOAD_WATCHER ||= Event->timer (
		2823	reentrant => 0,
		2824	after => 0,
		2825	data => WF_AUTOCANCEL,
		2826	cb => sub {
		2827	do_reload_perl;
		2828	undef $RELOAD_WATCHER;
		2829	},
		2830	);
		2831	}
		2832
2370	register_command "reload" => sub {	2833	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	2834	my ($who, $arg) = @_;
2372		2835
2373	if ($who->flag (FLAG_WIZ)) {	2836	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	2837	$who->message ("reloading server.");
		2838	async { reload_perl };
2377	}	2839	}
2378	};	2840	};
2379		2841
2380	unshift @INC, $LIBDIR;	2842	unshift @INC, $LIBDIR;
2381		2843
		2844	my $bug_warning = 0;
		2845
		2846	our @WAIT_FOR_TICK;
		2847	our @WAIT_FOR_TICK_BEGIN;
		2848
		2849	sub wait_for_tick {
		2850	return unless $TICK_WATCHER->is_active;
		2851	return if $Coro::current == $Coro::main;
		2852
		2853	my $signal = new Coro::Signal;
		2854	push @WAIT_FOR_TICK, $signal;
		2855	$signal->wait;
		2856	}
		2857
		2858	sub wait_for_tick_begin {
		2859	return unless $TICK_WATCHER->is_active;
		2860	return if $Coro::current == $Coro::main;
		2861
		2862	my $signal = new Coro::Signal;
		2863	push @WAIT_FOR_TICK_BEGIN, $signal;
		2864	$signal->wait;
		2865	}
		2866
		2867	my $min = 1e6;#d#
		2868	my $avg = 10;
2382	$TICK_WATCHER = Event->timer (	2869	$TICK_WATCHER = Event->timer (
2383	reentrant => 0,	2870	reentrant => 0,
		2871	parked => 1,
2384	prio => 0,	2872	prio => 0,
2385	at => $NEXT_TICK || $TICK,	2873	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2387	cb => sub {	2875	cb => sub {
		2876	if ($Coro::current != $Coro::main) {
		2877	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2878	unless ++$bug_warning > 10;
		2879	return;
		2880	}
		2881
2388	$NOW = Event::time;	2882	$NOW = $tick_start = Event::time;
2389		2883
2390	cf::server_tick; # one server iteration	2884	cf::server_tick; # one server iteration
		2885
		2886	0 && sync_job {#d#
		2887	for(1..10) {
		2888	my $t = Event::time;
		2889	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2890	or die;
		2891
		2892	$map->width (50);
		2893	$map->height (50);
		2894	$map->alloc;
		2895	$map->_load_objects ("/tmp/x.map", 1);
		2896	my $t = Event::time - $t;
		2897
		2898	#next unless $t < 0.0013;#d#
		2899	if ($t < $min) {
		2900	$min = $t;
		2901	}
		2902	$avg = $avg * 0.99 + $t * 0.01;
		2903	}
		2904	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2905	exit 0;
		2906	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2907	};
		2908
2391	$RUNTIME += $TICK;	2909	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;	2910	$NEXT_TICK += $TICK;
2393		2911
2394	$WAIT_FOR_TICK->broadcast;	2912	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2913	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2914	Coro::async_pool {
		2915	write_runtime
		2916	or warn "ERROR: unable to write runtime file: $!";
		2917	};
		2918	}
		2919
		2920	# my $AFTER = Event::time;
		2921	# warn $AFTER - $NOW;#d#
		2922
		2923	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2924	$sig->send;
		2925	}
		2926	while (my $sig = shift @WAIT_FOR_TICK) {
		2927	$sig->send;
		2928	}
		2929
		2930	$NOW = Event::time;
2396		2931
2397	# if we are delayed by four ticks or more, skip them all	2932	# if we are delayed by four ticks or more, skip them all
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2933	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2399		2934
2400	$TICK_WATCHER->at ($NEXT_TICK);	2935	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;	2936	$TICK_WATCHER->start;
		2937
		2938	$LOAD = ($NOW - $tick_start) / $TICK;
		2939	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2940
		2941	_post_tick;
		2942
		2943
2402	},	2944	},
2403	);	2945	);
2404		2946
		2947	{
2405	IO::AIO::max_poll_time $TICK * 0.2;	2948	BDB::max_poll_time $TICK * 0.1;
2406		2949	$BDB_POLL_WATCHER = Event->io (
2407	Event->io (	2950	reentrant => 0,
2408	fd => IO::AIO::poll_fileno,	2951	fd => BDB::poll_fileno,
2409	poll => 'r',	2952	poll => 'r',
2410	prio => 5,	2953	prio => 0,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,	2954	data => WF_AUTOCANCEL,
2417	after => 0,	2955	cb => \&BDB::poll_cb,
2418	interval => 10,	2956	);
2419	cb => sub {	2957	BDB::min_parallel 8;
2420	(Coro::unblock_sub {	2958
2421	write_runtime	2959	BDB::set_sync_prepare {
2422	or warn "ERROR: unable to write runtime file: $!";	2960	my $status;
		2961	my $current = $Coro::current;
		2962	(
		2963	sub {
		2964	$status = $!;
		2965	$current->ready; undef $current;
		2966	},
		2967	sub {
		2968	Coro::schedule while defined $current;
		2969	$! = $status;
		2970	},
		2971	)
		2972	};
		2973
		2974	unless ($DB_ENV) {
		2975	$DB_ENV = BDB::db_env_create;
		2976
		2977	cf::sync_job {
		2978	eval {
		2979	BDB::db_env_open
		2980	$DB_ENV,
		2981	$BDBDIR,
		2982	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2983	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2984	0666;
		2985
		2986	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2987
		2988	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2989	$DB_ENV->set_lk_detect;
		2990	};
		2991
		2992	cf::cleanup "db_env_open(db): $@" if $@;
2423	})->();	2993	};
2424	},	2994	}
2425	);	2995	}
		2996
		2997	{
		2998	IO::AIO::min_parallel 8;
		2999
		3000	undef $Coro::AIO::WATCHER;
		3001	IO::AIO::max_poll_time $TICK * 0.1;
		3002	$AIO_POLL_WATCHER = Event->io (
		3003	reentrant => 0,
		3004	data => WF_AUTOCANCEL,
		3005	fd => IO::AIO::poll_fileno,
		3006	poll => 'r',
		3007	prio => 6,
		3008	cb => \&IO::AIO::poll_cb,
		3009	);
		3010	}
		3011
		3012	my $_log_backtrace;
		3013
		3014	sub _log_backtrace {
		3015	my ($msg, @addr) = @_;
		3016
		3017	$msg =~ s/\n//;
		3018
		3019	# limit the # of concurrent backtraces
		3020	if ($_log_backtrace < 2) {
		3021	++$_log_backtrace;
		3022	async {
		3023	my @bt = fork_call {
		3024	@addr = map { sprintf "%x", $_ } @addr;
		3025	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3026	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3027	or die "addr2line: $!";
		3028
		3029	my @funcs;
		3030	my @res = <$fh>;
		3031	chomp for @res;
		3032	while (@res) {
		3033	my ($func, $line) = splice @res, 0, 2, ();
		3034	push @funcs, "[$func] $line";
		3035	}
		3036
		3037	@funcs
		3038	};
		3039
		3040	LOG llevInfo, "[ABT] $msg\n";
		3041	LOG llevInfo, "[ABT] $_\n" for @bt;
		3042	--$_log_backtrace;
		3043	};
		3044	} else {
		3045	LOG llevInfo, "[ABT] $msg\n";
		3046	LOG llevInfo, "[ABT] [suppressed]\n";
		3047	}
		3048	}
		3049
		3050	# load additional modules
		3051	use cf::pod;
2426		3052
2427	END { cf::emergency_save }	3053	END { cf::emergency_save }
2428		3054
2429	1	3055	1
2430		3056

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