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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.198 by root, Sun Jan 28 01:58:37 2007 UTC vs.
Revision 1.269 by root, Tue May 22 21:35:26 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 3.5 ();	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';
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	234	$d
192	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
193	}	236	}
194		237
195	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196		239
197	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
198		241
199	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
200		243
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
209		245
210	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
211
212	=cut
213
214	sub to_json($) {
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216	JSON::Syck::Dump $_[0]
217	}
218		247
219	=item cf::lock_wait $string	248	=item cf::lock_wait $string
220		249
221	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
222		251
…		…
228	returned.	257	returned.
229		258
230	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
232		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
233	=cut	266	=cut
234		267
235	our %LOCK;	268	our %LOCK;
236		269
237	sub lock_wait($) {	270	sub lock_wait($) {
…		…
256	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
258	}	291	}
259	}	292	}
260		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
261	sub freeze_mainloop {	300	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
263		302
264	my $guard = Coro::guard {	303	my $guard = Coro::guard {
265	$TICK_WATCHER->start;	304	$TICK_WATCHER->start;
266	$WRITE_RUNTIME_WATCHER->start;
267	};	305	};
268	$WRITE_RUNTIME_WATCHER->stop;
269	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
270	$guard	307	$guard
271	}	308	}
272		309
273	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
295		332
296	sub sync_job(&) {	333	sub sync_job(&) {
297	my ($job) = @_;	334	my ($job) = @_;
298		335
299	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
300	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
302		341
303	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
315		354
316	while ($busy) {	355	while ($busy) {
317	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
318	}	357	}
319		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
320	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
321	} else {	367	} else {
322	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
323		369
324	$job->()	370	$job->()
…		…
344		390
345	$coro	391	$coro
346	}	392	}
347		393
348	sub write_runtime {	394	sub write_runtime {
349	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
350		405
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352	or return;	407	or return;
353		408
354	my $value = $cf::RUNTIME + 90 + 10;	409	my $value = $cf::RUNTIME + 90 + 10;
…		…
356	# 60 allows for the watchdog to kill the server.	411	# 60 allows for the watchdog to kill the server.
357		412
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
359	and return;	414	and return;
360		415
		416	# always fsync - this file is important
361	aio_fsync $fh	417	aio_fsync $fh
362	and return;	418	and return;
363		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
364	close $fh	423	close $fh
365	or return;	424	or return;
366		425
367	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
368	and return;	427	and return;
369		428
		429	warn "runtime file written.\n";#d#
		430
370	1	431	1
		432	}
		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	443	}
372		444
373	=back	445	=back
374		446
375	=cut	447	=cut
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
556		628
557	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		633
562	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	635	my $pkg = shift @arg;
564		636
565	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
606	if (ref $_[0]) {	678	if (ref $_[0]) {
607	_object_attach @_;	679	_object_attach @_;
608	} else {	680	} else {
609	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
610	}	682	}
		683	_recalc_want;
611	};	684	};
612		685
613	# all those should be optimised	686	# all those should be optimised
614	sub cf::attachable::detach {	687	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
619	reattach ($obj);	692	reattach ($obj);
620	} else {	693	} else {
621	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
622	}	695	}
		696	_recalc_want;
623	};	697	};
624		698
625	sub cf::attachable::attached {	699	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
627		701
…		…
750	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
751		825
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	830	close $fh;
757		831
758	if (@$objs) {	832	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	838	close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
766	}	840	}
767	} else {	841	} else {
768	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
937	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
938		1012
939	=cut	1013	=cut
940		1014
941	sub playerdir($) {	1015	sub playerdir($) {
942	cf::localdir	1016	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1018	}
948		1019
949	sub path($) {	1020	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1022
952	(playerdir $login) . "/$login.pl"	1023	(playerdir $login) . "/playerdata"
953	}	1024	}
954		1025
955	sub find_active($) {	1026	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1027	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1028	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1041	my $login = $_[0];
971		1042
972	my $guard = cf::lock_acquire "user_find:$login";	1043	my $guard = cf::lock_acquire "user_find:$login";
973		1044
974	$cf::PLAYER{$_[0]} || do {	1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
975	my $pl = load_pl path $login	1053	my $pl = load_pl path $login
976	or return;	1054	or return;
977	$cf::PLAYER{$login} = $pl	1055	$cf::PLAYER{$login} = $pl
978	}	1056	}
979	}	1057	}
…		…
1016		1094
1017	=cut	1095	=cut
1018		1096
1019	sub quit_character {	1097	sub quit_character {
1020	my ($pl) = @_;	1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
1021		1101
1022	$pl->{deny_save} = 1;	1102	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
1024		1104
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1030	my $path = playerdir $pl;	1110	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1111	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1112	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1113	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
1035	IO::AIO::aio_rmtree $temp;	1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
1036	}	1136	}
1037		1137
1038	=item cf::player::list_logins	1138	=item cf::player::list_logins
1039		1139
1040	Returns am arrayref of all valid playernames in the system, can take a	1140	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1141	while and may block, so not sync_job-capable, ever.
1042		1142
1043	=cut	1143	=cut
1044		1144
1045	sub list_logins {	1145	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1146	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1147	or return [];
1048		1148
1049	my @logins;	1149	my @logins;
1050		1150
1051	for my $login (@$dirs) {	1151	for my $login (@$dirs) {
…		…
1068	=cut	1168	=cut
1069		1169
1070	sub maps($) {	1170	sub maps($) {
1071	my ($pl) = @_;	1171	my ($pl) = @_;
1072		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
1073	my $files = aio_readdir playerdir $pl	1175	my $files = aio_readdir playerdir $pl
1074	or return;	1176	or return;
1075		1177
1076	my @paths;	1178	my @paths;
1077		1179
1078	for (@$files) {	1180	for (@$files) {
1079	utf8::decode $_;	1181	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1182	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1183	next unless /^$PATH_SEP/o;
1082		1184
1083	s/\.map$//;	1185	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1186	}
1086		1187
1087	\@paths	1188	\@paths
1088	}	1189	}
1089		1190
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1091		1192
1092	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1093		1194
1094	=cut	1195	=cut
1095		1196
1096	sub ext_reply($$$%) {	1197	sub ext_reply($$%) {
1097	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1098		1199
1099	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1100		1201
1101	$self->send ("ext " . cf::to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
1102	}	1203	}
1103		1204
1104	package cf;	1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
		1244	}
1105		1245
1106	=back	1246	=back
1107
1108		1247
1109	=head3 cf::map	1248	=head3 cf::map
1110		1249
1111	=over 4	1250	=over 4
1112		1251
…		…
1178	sub normalise {	1317	sub normalise {
1179	my ($path, $base) = @_;	1318	my ($path, $base) = @_;
1180		1319
1181	$path = "$path"; # make sure its a string	1320	$path = "$path"; # make sure its a string
1182		1321
		1322	$path =~ s/\.map$//;
		1323
1183	# map plan:	1324	# map plan:
1184	#	1325	#
1185	# /! non-realised random map exit (special hack!)	1326	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1327	# {... are special paths that are not being touched
1187	# ?xxx/... are special absolute paths	1328	# ?xxx/... are special absolute paths
…		…
1248		1389
1249	# the original (read-only) location	1390	# the original (read-only) location
1250	sub load_path {	1391	sub load_path {
1251	my ($self) = @_;	1392	my ($self) = @_;
1252		1393
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1394	"$MAPDIR/$self->{path}.map"
1254	}	1395	}
1255		1396
1256	# the temporary/swap location	1397	# the temporary/swap location
1257	sub save_path {	1398	sub save_path {
1258	my ($self) = @_;	1399	my ($self) = @_;
1259		1400
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1402	"$TMPDIR/$path.map"
1262	}	1403	}
1263		1404
1264	# the unique path, undef == no special unique path	1405	# the unique path, undef == no special unique path
1265	sub uniq_path {	1406	sub uniq_path {
1266	my ($self) = @_;	1407	my ($self) = @_;
1267		1408
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1410	"$UNIQUEDIR/$path"
1270	}	1411	}
1271		1412
1272	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1273	# all maps in C++...	1414	# all maps in C++...
1274	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1288		1429
1289	sub load_header_from($) {	1430	sub load_header_from($) {
1290	my ($self, $path) = @_;	1431	my ($self, $path) = @_;
1291		1432
1292	utf8::encode $path;	1433	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
1294	or return;	1435	# or return;
1295		1436
1296	$self->_load_header ($path)	1437	$self->_load_header ($path)
1297	or return;	1438	or return;
1298		1439
1299	$self->{load_path} = $path;	1440	$self->{load_path} = $path;
…		…
1341	$self->load_header_orig	1482	$self->load_header_orig
1342	or return;	1483	or return;
1343	$self->prepare_orig;	1484	$self->prepare_orig;
1344	}	1485	}
1345		1486
		1487	$self->default_region (cf::region::find_by_path $self->{path})
		1488	unless $self->default_region;
		1489
1346	1	1490	1
1347	}	1491	}
1348		1492
1349	sub find;	1493	sub find;
1350	sub find {	1494	sub find {
…		…
1383	my ($self) = @_;	1527	my ($self) = @_;
1384		1528
1385	local $self->{deny_reset} = 1; # loading can take a long time	1529	local $self->{deny_reset} = 1; # loading can take a long time
1386		1530
1387	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1388	my $guard = cf::lock_acquire "map_load:$path";	1534	my $guard = cf::lock_acquire "map_load:$path";
1389		1535
1390	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1391		1537
1392	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1393		1539
1394	$self->alloc;	1540	$self->alloc;
1395		1541
1396	$self->pre_load;	1542	$self->pre_load;
1397
1398	$self->_load_objects ($self->{load_path}, 1)
1399	or return;
1400
1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1402	if delete $self->{load_original};
1403
1404	if (my $uniq = $self->uniq_path) {
1405	utf8::encode $uniq;
1406	if (aio_open $uniq, O_RDONLY, 0) {
1407	$self->clear_unique_items;
1408	$self->_load_objects ($uniq, 0);
1409	}
1410	}
1411
1412	Coro::cede;
1413
1414	# now do the right thing for maps
1415	$self->link_multipart_objects;
1416
1417	unless ($self->{deny_activate}) {
1418	$self->decay_objects;
1419	$self->fix_auto_apply;
1420	$self->update_buttons;
1421	Coro::cede;	1543	Coro::cede;
1422	$self->set_darkness_map;	1544
		1545	$self->_load_objects ($self->{load_path}, 1)
		1546	or return;
		1547
		1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1549	if delete $self->{load_original};
		1550
		1551	if (my $uniq = $self->uniq_path) {
		1552	utf8::encode $uniq;
		1553	if (aio_open $uniq, O_RDONLY, 0) {
		1554	$self->clear_unique_items;
		1555	$self->_load_objects ($uniq, 0);
		1556	}
		1557	}
		1558
		1559	Coro::cede;
		1560	# now do the right thing for maps
		1561	$self->link_multipart_objects;
1423	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1424	unless $self->difficulty;	1563	unless $self->difficulty;
1425	Coro::cede;	1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1426	$self->activate;	1573	$self->activate;
		1574	}
		1575
		1576	$self->in_memory (cf::MAP_IN_MEMORY);
1427	}	1577	}
1428		1578
1429	$self->post_load;	1579	$self->post_load;
1430
1431	$self->in_memory (cf::MAP_IN_MEMORY);
1432	}	1580	}
1433		1581
1434	sub customise_for {	1582	sub customise_for {
1435	my ($self, $ob) = @_;	1583	my ($self, $ob) = @_;
1436		1584
…		…
1579	return if $self->players;	1727	return if $self->players;
1580	return if $self->isa ("ext::map_per_player");#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1581		1729
1582	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1583		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1584	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
1585		1743
1586	$self->in_memory (cf::MAP_SWAPPED);
1587	$self->clear;	1744	$self->clear;
1588		1745
1589	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1590		1747
1591	$self->unlink_save;	1748	$self->unlink_save;
…		…
1618	instantiated unique items. May block.	1775	instantiated unique items. May block.
1619		1776
1620	=cut	1777	=cut
1621		1778
1622	sub unique_maps() {	1779	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1780	my $files = aio_readdir $UNIQUEDIR
1624	or return;	1781	or return;
1625		1782
1626	my @paths;	1783	my @paths;
1627		1784
1628	for (@$files) {	1785	for (@$files) {
1629	utf8::decode $_;	1786	utf8::decode $_;
1630	next if /\.pst$/;	1787	next if /\.pst$/;
1631	next unless /^$PATH_SEP/o;	1788	next unless /^$PATH_SEP/o;
1632		1789
1633	s/\.map$//;	1790	push @paths, cf::map::normalise $_;
1634	push @paths, $_;
1635	}	1791	}
1636		1792
1637	\@paths	1793	\@paths
1638	}	1794	}
1639		1795
…		…
1782	$map->load;	1938	$map->load;
1783	$map->load_diag;	1939	$map->load_diag;
1784		1940
1785	return unless $self->contr->active;	1941	return unless $self->contr->active;
1786	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1787	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1788	}	1946	}
1789		1947
1790	cf::player->attach (	1948	cf::player->attach (
1791	on_logout => sub {	1949	on_logout => sub {
…		…
1804	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1805	# should happen only on crashes	1963	# should happen only on crashes
1806	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1807	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1808	(async {	1966	(async {
1809	# we need this sleep as the login has a concurrent enter_exit running
1810	# and this sleep increases chances of the player not ending up in scorn
1811	$pl->ob->reply (undef,	1967	$pl->ob->reply (undef,
1812	"There was an internal problem at your last logout, "	1968	"There was an internal problem at your last logout, "
1813	. "the server will try to bring you to your intended destination in a second.",	1969	. "the server will try to bring you to your intended destination in a second.",
1814	cf::NDI_RED);	1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
1815	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1816	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1817	})->prio (2);	1975	})->prio (2);
1818	}	1976	}
1819	},	1977	},
1820	);	1978	);
1821		1979
1822	=item $player_object->goto ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1981
		1982	Moves the player to the given map-path and coordinates by first freezing
		1983	her, loading and preparing them map, calling the provided $check callback
		1984	that has to return the map if sucecssful, and then unfreezes the player on
		1985	the new (success) or old (failed) map position.
1823		1986
1824	=cut	1987	=cut
1825		1988
1826	sub cf::object::player::goto {	1989	sub cf::object::player::goto {
1827	my ($self, $path, $x, $y) = @_;	1990	my ($self, $path, $x, $y, $check) = @_;
1828		1991
1829	$self->enter_link;	1992	$self->enter_link;
1830		1993
1831	(async {	1994	(async {
1832	my $map = eval {	1995	my $map = eval {
1833	my $map = cf::map::find $path;	1996	my $map = cf::map::find $path;
		1997
		1998	if ($map) {
1834	$map = $map->customise_for ($self) if $map;	1999	$map = $map->customise_for ($self);
		2000	$map = $check->($map) if $check && $map;
		2001	} else {
		2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2003	}
		2004
1835	$map	2005	$map
		2006	};
		2007
		2008	if ($@) {
		2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2010	LOG llevError | logBacktrace, Carp::longmess $@;
1836	} or	2011	}
1837	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1838		2012
1839	$self->leave_link ($map, $x, $y);	2013	$self->leave_link ($map, $x, $y);
1840	})->prio (1);	2014	})->prio (1);
1841	}	2015	}
1842		2016
…		…
1883		2057
1884	$rmp->{random_seed} ||= $exit->random_seed;	2058	$rmp->{random_seed} ||= $exit->random_seed;
1885		2059
1886	my $data = cf::to_json $rmp;	2060	my $data = cf::to_json $rmp;
1887	my $md5 = Digest::MD5::md5_hex $data;	2061	my $md5 = Digest::MD5::md5_hex $data;
1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2062	my $meta = "$RANDOMDIR/$md5.meta";
1889		2063
1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1891	aio_write $fh, 0, (length $data), $data, 0;	2065	aio_write $fh, 0, (length $data), $data, 0;
1892	undef $fh;	2066	undef $fh;
1893	aio_rename "$meta~", $meta;	2067	aio_rename "$meta~", $meta;
…		…
1902		2076
1903	return unless $self->type == cf::PLAYER;	2077	return unless $self->type == cf::PLAYER;
1904		2078
1905	if ($exit->slaying eq "/!") {	2079	if ($exit->slaying eq "/!") {
1906	#TODO: this should de-fi-ni-te-ly not be a sync-job	2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2081	# the problem is that $exit might not survive long enough
		2082	# so it needs to be done right now, right here
1907	cf::sync_job { prepare_random_map $exit };	2083	cf::sync_job { prepare_random_map $exit };
1908	}	2084	}
1909		2085
1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1911	my $hp = $exit->stats->hp;	2087	my $hp = $exit->stats->hp;
…		…
1919	$self->goto ($slaying, $hp, $sp);	2095	$self->goto ($slaying, $hp, $sp);
1920		2096
1921	1;	2097	1;
1922	}) {	2098	}) {
1923	$self->message ("Something went wrong deep within the crossfire server. "	2099	$self->message ("Something went wrong deep within the crossfire server. "
1924	. "I'll try to bring you back to the map you were before. "	2100	. "I'll try to bring you back to the map you were before. "
1925	. "Please report this to the dungeon master!",	2101	. "Please report this to the dungeon master!",
1926	cf::NDI_UNIQUE | cf::NDI_RED);	2102	cf::NDI_UNIQUE | cf::NDI_RED);
1927		2103
1928	warn "ERROR in enter_exit: $@";	2104	warn "ERROR in enter_exit: $@";
1929	$self->leave_link;	2105	$self->leave_link;
1930	}	2106	}
1931	})->prio (1);	2107	})->prio (1);
…		…
1944		2120
1945	sub cf::client::send_drawinfo {	2121	sub cf::client::send_drawinfo {
1946	my ($self, $text, $flags) = @_;	2122	my ($self, $text, $flags) = @_;
1947		2123
1948	utf8::encode $text;	2124	utf8::encode $text;
1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1950	}	2126	}
1951		2127
		2128	=item $client->ext_event ($type, %msg)
		2129
		2130	Sends an exti event to the client.
		2131
		2132	=cut
		2133
		2134	sub cf::client::ext_event($$%) {
		2135	my ($self, $type, %msg) = @_;
		2136
		2137	$msg{msgtype} = "event_$type";
		2138	$self->send_packet ("ext " . cf::to_json \%msg);
		2139	}
1952		2140
1953	=item $success = $client->query ($flags, "text", \&cb)	2141	=item $success = $client->query ($flags, "text", \&cb)
1954		2142
1955	Queues a query to the client, calling the given callback with	2143	Queues a query to the client, calling the given callback with
1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1985	# get handled first	2173	# get handled first
1986	my $queue = delete $ns->{query_queue}	2174	my $queue = delete $ns->{query_queue}
1987	or return; # be conservative, not sure how that can happen, but we saw a crash here	2175	or return; # be conservative, not sure how that can happen, but we saw a crash here
1988		2176
1989	(shift @$queue)->[1]->($msg);	2177	(shift @$queue)->[1]->($msg);
		2178	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1990		2179
1991	push @{ $ns->{query_queue} }, @$queue;	2180	push @{ $ns->{query_queue} }, @$queue;
1992		2181
1993	if (@{ $ns->{query_queue} } == @$queue) {	2182	if (@{ $ns->{query_queue} } == @$queue) {
1994	if (@$queue) {	2183	if (@$queue) {
…		…
2052		2241
2053	# here we export the classes and methods available to script code	2242	# here we export the classes and methods available to script code
2054		2243
2055	=pod	2244	=pod
2056		2245
2057	The following fucntions and emthods are available within a safe environment:	2246	The following functions and methods are available within a safe environment:
2058		2247
2059	cf::object contr pay_amount pay_player map	2248	cf::object contr pay_amount pay_player map
2060	cf::object::player player	2249	cf::object::player player
2061	cf::player peaceful	2250	cf::player peaceful
2062	cf::map trigger	2251	cf::map trigger
…		…
2147	#############################################################################	2336	#############################################################################
2148		2337
2149	=head2 EXTENSION DATABASE SUPPORT	2338	=head2 EXTENSION DATABASE SUPPORT
2150		2339
2151	Crossfire maintains a very simple database for extension use. It can	2340	Crossfire maintains a very simple database for extension use. It can
2152	currently store anything that can be serialised using Storable, which	2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2153	excludes objects.	2342	convert to/from binary).
2154		2343
2155	The parameter C<$family> should best start with the name of the extension	2344	The parameter C<$family> should best start with the name of the extension
2156	using it, it should be unique.	2345	using it, it should be unique.
2157		2346
2158	=over 4	2347	=over 4
2159		2348
2160	=item $hashref = cf::db_get $family
2161
2162	Return a hashref for use by the extension C<$family>, which can be
2163	modified. After modifications, you have to call C<cf::db_dirty> or
2164	C<cf::db_sync>.
2165
2166	=item $value = cf::db_get $family => $key	2349	=item $value = cf::db_get $family => $key
2167		2350
2168	Returns a single value from the database	2351	Returns a single value from the database.
2169
2170	=item cf::db_put $family => $hashref
2171
2172	Stores the given family hashref into the database. Updates are delayed, if
2173	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2174		2352
2175	=item cf::db_put $family => $key => $value	2353	=item cf::db_put $family => $key => $value
2176		2354
2177	Stores the given C<$value> in the family hash. Updates are delayed, if you	2355	Stores the given C<$value> in the family.
2178	want the data to be synced to disk immediately, use C<cf::db_sync>.
2179
2180	=item cf::db_dirty
2181
2182	Marks the database as dirty, to be updated at a later time.
2183
2184	=item cf::db_sync
2185
2186	Immediately write the database to disk I<if it is dirty>.
2187		2356
2188	=cut	2357	=cut
2189		2358
2190	our $DB;	2359	our $DB;
2191		2360
2192	{	2361	sub db_init {
2193	my $path = cf::localdir . "/database.pst";	2362	unless ($DB) {
		2363	$DB = BDB::db_create $DB_ENV;
2194		2364
2195	sub db_load() {	2365	cf::sync_job {
2196	$DB = stat $path ? Storable::retrieve $path : { };	2366	eval {
2197	}	2367	$DB->set_flags (BDB::CHKSUM);
2198		2368
2199	my $pid;	2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2200		2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2201	sub db_save() {	2371	cf::cleanup "db_open(db): $!" if $!;
2202	waitpid $pid, 0 if $pid;	2372	};
2203	if (0 == ($pid = fork)) {	2373	cf::cleanup "db_open(db): $@" if $@;
2204	$DB->{_meta}{version} = 1;
2205	Storable::nstore $DB, "$path~";
2206	rename "$path~", $path;
2207	cf::_exit 0 if defined $pid;
2208	}	2374	};
2209	}	2375	}
		2376	}
2210		2377
2211	my $dirty;
2212
2213	sub db_sync() {
2214	db_save if $dirty;
2215	undef $dirty;
2216	}
2217
2218	my $idle = Event->idle (
2219	reentrant => 0,
2220	min => 10,
2221	max => 20,
2222	repeat => 0,
2223	data => WF_AUTOCANCEL,
2224	cb => \&db_sync,
2225	);
2226
2227	sub db_dirty() {
2228	$dirty = 1;
2229	$idle->start;
2230	}
2231
2232	sub db_get($;$) {	2378	sub db_get($$) {
2233	@_ >= 2	2379	my $key = "$_[0]/$_[1]";
2234	? $DB->{$_[0]}{$_[1]}
2235	: ($DB->{$_[0]} ||= { })
2236	}
2237		2380
		2381	cf::sync_job {
		2382	BDB::db_get $DB, undef, $key, my $data;
		2383
		2384	$! ? ()
		2385	: $data
		2386	}
		2387	}
		2388
2238	sub db_put($$;$) {	2389	sub db_put($$$) {
2239	if (@_ >= 3) {	2390	BDB::dbreq_pri 4;
2240	$DB->{$_[0]}{$_[1]} = $_[2];	2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2241	} else {	2392	}
2242	$DB->{$_[0]} = $_[1];
2243	}
2244	db_dirty;
2245	}
2246		2393
2247	cf::global->attach (	2394	=item cf::cache $id => [$paths...], $processversion => $process
2248	prio => 10000,	2395
2249	on_cleanup => sub {	2396	Generic caching function that returns the value of the resource $id,
2250	db_sync;	2397	caching and regenerating as required.
		2398
		2399	This function can block.
		2400
		2401	=cut
		2402
		2403	sub cache {
		2404	my ($id, $src, $processversion, $process) = @_;
		2405
		2406	my $meta =
		2407	join "\x00",
		2408	$processversion,
		2409	map {
		2410	aio_stat $_
		2411	and Carp::croak "$_: $!";
		2412
		2413	($_, (stat _)[7,9])
		2414	} @$src;
		2415
		2416	my $dbmeta = db_get cache => "$id/meta";
		2417	if ($dbmeta ne $meta) {
		2418	# changed, we may need to process
		2419
		2420	my @data;
		2421	my $md5;
		2422
		2423	for (0 .. $#$src) {
		2424	0 <= aio_load $src->[$_], $data[$_]
		2425	or Carp::croak "$src->[$_]: $!";
2251	},	2426	}
2252	);	2427
		2428	# if processing is expensive, check
		2429	# checksum first
		2430	if (1) {
		2431	$md5 =
		2432	join "\x00",
		2433	$processversion,
		2434	map {
		2435	Coro::cede;
		2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2437	} 0.. $#$src;
		2438
		2439
		2440	my $dbmd5 = db_get cache => "$id/md5";
		2441	if ($dbmd5 eq $md5) {
		2442	db_put cache => "$id/meta", $meta;
		2443
		2444	return db_get cache => "$id/data";
		2445	}
		2446	}
		2447
		2448	my $t1 = Time::HiRes::time;
		2449	my $data = $process->(\@data);
		2450	my $t2 = Time::HiRes::time;
		2451
		2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2453
		2454	db_put cache => "$id/data", $data;
		2455	db_put cache => "$id/md5" , $md5;
		2456	db_put cache => "$id/meta", $meta;
		2457
		2458	return $data;
		2459	}
		2460
		2461	db_get cache => "$id/data"
2253	}	2462	}
		2463
		2464	=item fork_call { }, $args
		2465
		2466	Executes the given code block with the given arguments in a seperate
		2467	process, returning the results. Everything must be serialisable with
		2468	Coro::Storable. May, of course, block. Note that the executed sub may
		2469	never block itself or use any form of Event handling.
		2470
		2471	=cut
		2472
		2473	sub fork_call(&@) {
		2474	my ($cb, @args) = @_;
		2475
		2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2477	# or die "socketpair: $!";
		2478	pipe my $fh1, my $fh2
		2479	or die "pipe: $!";
		2480
		2481	if (my $pid = fork) {
		2482	close $fh2;
		2483
		2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2485	$res = Coro::Storable::thaw $res;
		2486
		2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2488
		2489	die $$res unless "ARRAY" eq ref $res;
		2490
		2491	return wantarray ? @$res : $res->[-1];
		2492	} else {
		2493	reset_signals;
		2494	local $SIG{__WARN__};
		2495	local $SIG{__DIE__};
		2496	eval {
		2497	close $fh1;
		2498
		2499	my @res = eval { $cb->(@args) };
		2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2501	};
		2502
		2503	warn $@ if $@;
		2504	_exit 0;
		2505	}
		2506	}
		2507
		2508
2254		2509
2255	#############################################################################	2510	#############################################################################
2256	# the server's main()	2511	# the server's init and main functions
		2512
		2513	sub load_facedata($) {
		2514	my ($path) = @_;
		2515
		2516	warn "loading facedata from $path\n";
		2517
		2518	my $facedata;
		2519	0 < aio_load $path, $facedata
		2520	or die "$path: $!";
		2521
		2522	$facedata = Coro::Storable::thaw $facedata;
		2523
		2524	$facedata->{version} == 2
		2525	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2526
		2527	{
		2528	my $faces = $facedata->{faceinfo};
		2529
		2530	while (my ($face, $info) = each %$faces) {
		2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2535	Coro::cede;
		2536	}
		2537
		2538	while (my ($face, $info) = each %$faces) {
		2539	next unless $info->{smooth};
		2540	my $idx = cf::face::find $face
		2541	or next;
		2542	if (my $smooth = cf::face::find $info->{smooth}) {
		2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2544	} else {
		2545	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2546	}
		2547	Coro::cede;
		2548	}
		2549	}
		2550
		2551	{
		2552	my $anims = $facedata->{animinfo};
		2553
		2554	while (my ($anim, $info) = each %$anims) {
		2555	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2556	Coro::cede;
		2557	}
		2558
		2559	cf::anim::invalidate_all; # d'oh
		2560	}
		2561
		2562	1
		2563	}
		2564
		2565	sub reload_regions {
		2566	load_resource_file "$MAPDIR/regions"
		2567	or die "unable to load regions file\n";
		2568	}
		2569
		2570	sub reload_facedata {
		2571	load_facedata "$DATADIR/facedata"
		2572	or die "unable to load facedata\n";
		2573	}
		2574
		2575	sub reload_archetypes {
		2576	load_resource_file "$DATADIR/archetypes"
		2577	or die "unable to load archetypes\n";
		2578	}
		2579
		2580	sub reload_treasures {
		2581	load_resource_file "$DATADIR/treasures"
		2582	or die "unable to load treasurelists\n";
		2583	}
		2584
		2585	sub reload_resources {
		2586	warn "reloading resource files...\n";
		2587
		2588	reload_regions;
		2589	reload_facedata;
		2590	reload_archetypes;
		2591	reload_treasures;
		2592
		2593	warn "finished reloading resource files\n";
		2594	}
		2595
		2596	sub init {
		2597	reload_resources;
		2598	}
2257		2599
2258	sub cfg_load {	2600	sub cfg_load {
2259	open my $fh, "<:utf8", cf::confdir . "/config"	2601	open my $fh, "<:utf8", "$CONFDIR/config"
2260	or return;	2602	or return;
2261		2603
2262	local $/;	2604	local $/;
2263	*CFG = YAML::Syck::Load <$fh>;	2605	*CFG = YAML::Syck::Load <$fh>;
2264		2606
…		…
2284	Event::one_event;	2626	Event::one_event;
2285	})->prio (Coro::PRIO_MAX);	2627	})->prio (Coro::PRIO_MAX);
2286	};	2628	};
2287		2629
2288	cfg_load;	2630	cfg_load;
2289	db_load;	2631	db_init;
2290	load_extensions;	2632	load_extensions;
2291		2633
2292	$TICK_WATCHER->start;	2634	$TICK_WATCHER->start;
2293	Event::loop;	2635	Event::loop;
2294	}	2636	}
…		…
2333	my $map = $cf::MAP{$path} or next;	2675	my $map = $cf::MAP{$path} or next;
2334	$map->valid or next;	2676	$map->valid or next;
2335	$map->save;	2677	$map->save;
2336	}	2678	}
2337	warn "end emergency map save\n";	2679	warn "end emergency map save\n";
		2680
		2681	warn "begin emergency database checkpoint\n";
		2682	BDB::db_env_txn_checkpoint $DB_ENV;
		2683	warn "end emergency database checkpoint\n";
2338	};	2684	};
2339		2685
2340	warn "leave emergency perl save\n";	2686	warn "leave emergency perl save\n";
2341	}	2687	}
2342		2688
		2689	sub post_cleanup {
		2690	my ($make_core) = @_;
		2691
		2692	warn Carp::longmess "post_cleanup backtrace"
		2693	if $make_core;
		2694	}
		2695
2343	sub reload() {	2696	sub do_reload_perl() {
2344	# can/must only be called in main	2697	# can/must only be called in main
2345	if ($Coro::current != $Coro::main) {	2698	if ($Coro::current != $Coro::main) {
2346	warn "can only reload from main coroutine";	2699	warn "can only reload from main coroutine";
2347	return;	2700	return;
2348	}	2701	}
2349		2702
2350	warn "reloading...";	2703	warn "reloading...";
2351		2704
2352	warn "cancelling server ticker";	2705	warn "entering sync_job";
2353	$TICK_WATCHER->cancel;
2354		2706
		2707	cf::sync_job {
		2708	cf::write_runtime; # external watchdog should not bark
2355	cf::emergency_save;	2709	cf::emergency_save;
		2710	cf::write_runtime; # external watchdog should not bark
2356		2711
2357	eval {	2712	warn "syncing database to disk";
		2713	BDB::db_env_txn_checkpoint $DB_ENV;
		2714
2358	# if anything goes wrong in here, we should simply crash as we already saved	2715	# if anything goes wrong in here, we should simply crash as we already saved
2359
2360	warn "syncing database to disk";
2361	cf::db_sync;
2362		2716
2363	warn "cancelling all WF_AUTOCANCEL watchers";	2717	warn "cancelling all WF_AUTOCANCEL watchers";
2364	for (Event::all_watchers) {	2718	for (Event::all_watchers) {
2365	$_->cancel if $_->data & WF_AUTOCANCEL;	2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2366	}	2720	}
2367		2721
2368	warn "flushing outstanding aio requests";	2722	warn "flushing outstanding aio requests";
2369	for (;;) {	2723	for (;;) {
		2724	BDB::flush;
2370	IO::AIO::flush;	2725	IO::AIO::flush;
2371	Coro::cede;	2726	Coro::cede;
2372	last unless IO::AIO::nreqs;	2727	last unless IO::AIO::nreqs || BDB::nreqs;
2373	warn "iterate...";	2728	warn "iterate...";
2374	}	2729	}
		2730
		2731	++$RELOAD;
2375		2732
2376	warn "cancelling all extension coros";	2733	warn "cancelling all extension coros";
2377	$_->cancel for values %EXT_CORO;	2734	$_->cancel for values %EXT_CORO;
2378	%EXT_CORO = ();	2735	%EXT_CORO = ();
2379		2736
…		…
2419	Symbol::delete_package "safe::$_"	2776	Symbol::delete_package "safe::$_"
2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2421		2778
2422	warn "unloading cf.pm \"a bit\"";	2779	warn "unloading cf.pm \"a bit\"";
2423	delete $INC{"cf.pm"};	2780	delete $INC{"cf.pm"};
		2781	delete $INC{"cf/pod.pm"};
2424		2782
2425	# don't, removes xs symbols, too,	2783	# don't, removes xs symbols, too,
2426	# and global variables created in xs	2784	# and global variables created in xs
2427	#Symbol::delete_package __PACKAGE__;	2785	#Symbol::delete_package __PACKAGE__;
2428		2786
…		…
2432	require cf;	2790	require cf;
2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2434		2792
2435	warn "loading config and database again";	2793	warn "loading config and database again";
2436	cf::cfg_load;	2794	cf::cfg_load;
2437	cf::db_load;
2438		2795
2439	warn "loading extensions";	2796	warn "loading extensions";
2440	cf::load_extensions;	2797	cf::load_extensions;
2441		2798
2442	warn "reattaching attachments to objects/players";	2799	warn "reattaching attachments to objects/players";
2443	_global_reattach;	2800	_global_reattach; # objects, sockets
2444	warn "reattaching attachments to maps";	2801	warn "reattaching attachments to maps";
2445	reattach $_ for values %MAP;	2802	reattach $_ for values %MAP;
		2803	warn "reattaching attachments to players";
		2804	reattach $_ for values %PLAYER;
2446		2805
2447	warn "restarting server ticker";	2806	warn "leaving sync_job";
2448		2807
2449	$TICK_WATCHER->start;	2808	1
2450	};	2809	} or do {
2451
2452	if ($@) {
2453	warn $@;	2810	warn $@;
2454	warn "error while reloading, exiting.";	2811	warn "error while reloading, exiting.";
2455	exit 1;	2812	exit 1;
2456	}	2813	};
2457		2814
2458	warn "reloaded";	2815	warn "reloaded";
2459	};	2816	};
2460		2817
2461	our $RELOAD_WATCHER; # used only during reload	2818	our $RELOAD_WATCHER; # used only during reload
2462		2819
		2820	sub reload_perl() {
		2821	# doing reload synchronously and two reloads happen back-to-back,
		2822	# coro crashes during coro_state_free->destroy here.
		2823
		2824	$RELOAD_WATCHER ||= Event->timer (
		2825	reentrant => 0,
		2826	after => 0,
		2827	data => WF_AUTOCANCEL,
		2828	cb => sub {
		2829	do_reload_perl;
		2830	undef $RELOAD_WATCHER;
		2831	},
		2832	);
		2833	}
		2834
2463	register_command "reload" => sub {	2835	register_command "reload" => sub {
2464	my ($who, $arg) = @_;	2836	my ($who, $arg) = @_;
2465		2837
2466	if ($who->flag (FLAG_WIZ)) {	2838	if ($who->flag (FLAG_WIZ)) {
2467	$who->message ("reloading server.");	2839	$who->message ("reloading server.");
2468		2840	async { reload_perl };
2469	# doing reload synchronously and two reloads happen back-to-back,
2470	# coro crashes during coro_state_free->destroy here.
2471
2472	$RELOAD_WATCHER ||= Event->timer (
2473	reentrant => 0,
2474	after => 0,
2475	data => WF_AUTOCANCEL,
2476	cb => sub {
2477	reload;
2478	undef $RELOAD_WATCHER;
2479	},
2480	);
2481	}	2841	}
2482	};	2842	};
2483		2843
2484	unshift @INC, $LIBDIR;	2844	unshift @INC, $LIBDIR;
2485		2845
2486	my $bug_warning = 0;	2846	my $bug_warning = 0;
2487		2847
		2848	our @WAIT_FOR_TICK;
		2849	our @WAIT_FOR_TICK_BEGIN;
		2850
		2851	sub wait_for_tick {
		2852	return unless $TICK_WATCHER->is_active;
		2853	return if $Coro::current == $Coro::main;
		2854
		2855	my $signal = new Coro::Signal;
		2856	push @WAIT_FOR_TICK, $signal;
		2857	$signal->wait;
		2858	}
		2859
		2860	sub wait_for_tick_begin {
		2861	return unless $TICK_WATCHER->is_active;
		2862	return if $Coro::current == $Coro::main;
		2863
		2864	my $signal = new Coro::Signal;
		2865	push @WAIT_FOR_TICK_BEGIN, $signal;
		2866	$signal->wait;
		2867	}
		2868
		2869	my $min = 1e6;#d#
		2870	my $avg = 10;
2488	$TICK_WATCHER = Event->timer (	2871	$TICK_WATCHER = Event->timer (
2489	reentrant => 0,	2872	reentrant => 0,
2490	parked => 1,	2873	parked => 1,
2491	prio => 0,	2874	prio => 0,
2492	at => $NEXT_TICK || $TICK,	2875	at => $NEXT_TICK || $TICK,
…		…
2496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2497	unless ++$bug_warning > 10;	2880	unless ++$bug_warning > 10;
2498	return;	2881	return;
2499	}	2882	}
2500		2883
2501	$NOW = Event::time;	2884	$NOW = $tick_start = Event::time;
2502		2885
2503	cf::server_tick; # one server iteration	2886	cf::server_tick; # one server iteration
		2887
		2888	0 && sync_job {#d#
		2889	for(1..10) {
		2890	my $t = Event::time;
		2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2892	or die;
		2893
		2894	$map->width (50);
		2895	$map->height (50);
		2896	$map->alloc;
		2897	$map->_load_objects ("/tmp/x.map", 1);
		2898	my $t = Event::time - $t;
		2899
		2900	#next unless $t < 0.0013;#d#
		2901	if ($t < $min) {
		2902	$min = $t;
		2903	}
		2904	$avg = $avg * 0.99 + $t * 0.01;
		2905	}
		2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2907	exit 0;
		2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2909	};
		2910
2504	$RUNTIME += $TICK;	2911	$RUNTIME += $TICK;
2505	$NEXT_TICK += $TICK;	2912	$NEXT_TICK += $TICK;
2506		2913
2507	$WAIT_FOR_TICK->broadcast;	2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
2509		2916	Coro::async_pool {
2510	Event::sweep;	2917	write_runtime
2511	Coro::cede_notself;	2918	or warn "ERROR: unable to write runtime file: $!";
		2919	};
2512		2920	}
		2921
2513	# my $AFTER = Event::time;	2922	# my $AFTER = Event::time;
2514	# warn $AFTER - $NOW;#d#	2923	# warn $AFTER - $NOW;#d#
2515		2924
		2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2926	$sig->send;
		2927	}
		2928	while (my $sig = shift @WAIT_FOR_TICK) {
		2929	$sig->send;
		2930	}
		2931
		2932	$NOW = Event::time;
		2933
2516	# if we are delayed by four ticks or more, skip them all	2934	# if we are delayed by four ticks or more, skip them all
2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2518		2936
2519	$TICK_WATCHER->at ($NEXT_TICK);	2937	$TICK_WATCHER->at ($NEXT_TICK);
2520	$TICK_WATCHER->start;	2938	$TICK_WATCHER->start;
		2939
		2940	$LOAD = ($NOW - $tick_start) / $TICK;
		2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2942
		2943	_post_tick;
		2944
		2945
2521	},	2946	},
2522	);	2947	);
2523		2948
		2949	{
		2950	BDB::max_poll_time $TICK * 0.1;
		2951	$BDB_POLL_WATCHER = Event->io (
		2952	reentrant => 0,
		2953	fd => BDB::poll_fileno,
		2954	poll => 'r',
		2955	prio => 0,
		2956	data => WF_AUTOCANCEL,
		2957	cb => \&BDB::poll_cb,
		2958	);
		2959	BDB::min_parallel 8;
		2960
		2961	BDB::set_sync_prepare {
		2962	my $status;
		2963	my $current = $Coro::current;
		2964	(
		2965	sub {
		2966	$status = $!;
		2967	$current->ready; undef $current;
		2968	},
		2969	sub {
		2970	Coro::schedule while defined $current;
		2971	$! = $status;
		2972	},
		2973	)
		2974	};
		2975
		2976	unless ($DB_ENV) {
		2977	$DB_ENV = BDB::db_env_create;
		2978
		2979	cf::sync_job {
		2980	eval {
		2981	BDB::db_env_open
		2982	$DB_ENV,
		2983	$BDBDIR,
		2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2986	0666;
		2987
		2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2989
		2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2991	$DB_ENV->set_lk_detect;
		2992	};
		2993
		2994	cf::cleanup "db_env_open(db): $@" if $@;
		2995	};
		2996	}
		2997	}
		2998
		2999	{
		3000	IO::AIO::min_parallel 8;
		3001
		3002	undef $Coro::AIO::WATCHER;
2524	IO::AIO::max_poll_time $TICK * 0.1;	3003	IO::AIO::max_poll_time $TICK * 0.1;
2525
2526	undef $Coro::AIO::WATCHER;
2527	$AIO_POLL_WATCHER = Event->io (	3004	$AIO_POLL_WATCHER = Event->io (
2528	reentrant => 0,	3005	reentrant => 0,
		3006	data => WF_AUTOCANCEL,
2529	fd => IO::AIO::poll_fileno,	3007	fd => IO::AIO::poll_fileno,
2530	poll => 'r',	3008	poll => 'r',
2531	prio => 6,	3009	prio => 6,
2532	data => WF_AUTOCANCEL,
2533	cb => \&IO::AIO::poll_cb,	3010	cb => \&IO::AIO::poll_cb,
2534	);	3011	);
		3012	}
2535		3013
2536	$WRITE_RUNTIME_WATCHER = Event->timer (	3014	my $_log_backtrace;
2537	reentrant => 0,	3015
2538	data => WF_AUTOCANCEL,	3016	sub _log_backtrace {
2539	after => 1,	3017	my ($msg, @addr) = @_;
2540	interval => 10,	3018
2541	prio => 6, # keep it lowest so it acts like a watchdog	3019	$msg =~ s/\n//;
2542	cb => Coro::unblock_sub {	3020
2543	write_runtime	3021	# limit the # of concurrent backtraces
2544	or warn "ERROR: unable to write runtime file: $!";	3022	if ($_log_backtrace < 2) {
		3023	++$_log_backtrace;
		3024	async {
		3025	my @bt = fork_call {
		3026	@addr = map { sprintf "%x", $_ } @addr;
		3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3029	or die "addr2line: $!";
		3030
		3031	my @funcs;
		3032	my @res = <$fh>;
		3033	chomp for @res;
		3034	while (@res) {
		3035	my ($func, $line) = splice @res, 0, 2, ();
		3036	push @funcs, "[$func] $line";
		3037	}
		3038
		3039	@funcs
		3040	};
		3041
		3042	LOG llevInfo, "[ABT] $msg\n";
		3043	LOG llevInfo, "[ABT] $_\n" for @bt;
		3044	--$_log_backtrace;
		3045	};
		3046	} else {
		3047	LOG llevInfo, "[ABT] $msg\n";
		3048	LOG llevInfo, "[ABT] [suppressed]\n";
2545	},	3049	}
2546	);	3050	}
		3051
		3052	# load additional modules
		3053	use cf::pod;
2547		3054
2548	END { cf::emergency_save }	3055	END { cf::emergency_save }
2549		3056
2550	1	3057	1
2551		3058

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