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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.204 by root, Fri Feb 2 19:59:22 2007 UTC vs.
Revision 1.274 by root, Tue Jun 5 13:05:02 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;
53	our $USE_FSYNC; # use fsync to write maps - default off	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
54		82
55	our %CFG;	83	our %CFG;
56		84
57	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	86	our $RUNTIME;
59		87
60	our %PLAYER; # all users	88	our %PLAYER; # all users
61	our %MAP; # all maps	89	our %MAP; # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		91
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $tick_start; # for load detecting purposes
		98
71	binmode STDOUT;	99	binmode STDOUT;
72	binmode STDERR;	100	binmode STDERR;
73		101
74	# read virtual server time, if available	102	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
76	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
77	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
78	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
79	}	107	}
80		108
81	mkdir cf::localdir;	109	mkdir $_
82	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
83	mkdir cf::localdir . "/" . cf::tmpdir;
84	mkdir cf::localdir . "/" . cf::uniquedir;
85	mkdir $RANDOM_MAPS;
86		111
87	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
88		113
89	sub cf::map::normalise;	114	sub cf::map::normalise;
90		115
…		…
101	=item $cf::RUNTIME	126	=item $cf::RUNTIME
102		127
103	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
104	every server tick.	129	every server tick.
105		130
106	=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
107		134
108	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		139
111	=item $cf::NOW	140	=item $cf::NOW
112		141
113	The time of the last (current) server tick.	142	The time of the last (current) server tick.
114		143
115	=item $cf::TICK	144	=item $cf::TICK
116		145
117	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.
118		157
119	=item %cf::CFG	158	=item %cf::CFG
120		159
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
122	from wherever your confdir points to.	161	from wherever your confdir points to.
123		162
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		164
126	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
127	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
128	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.
129	window of cpu time available, or simply to synchronise to the server tick.
130		168
131	=back	169	=back
132		170
133	=cut	171	=cut
134		172
135	BEGIN {	173	BEGIN {
136	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	175	my $msg = join "", @_;
138	utf8::encode $msg;
139		176
140	$msg .= "\n"	177	$msg .= "\n"
141	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
142		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
143	LOG llevError, $msg;	183	LOG llevError, $msg;
144	};	184	};
145	}	185	}
146		186
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		194
154	# 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
155	# within the Safe compartment.	196	# within the Safe compartment.
156	for my $pkg (qw(	197	for my $pkg (qw(
157	cf::global cf::attachable	198	cf::global cf::attachable
…		…
193	$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;
194	$d	235	$d
195	} || "[unable to dump $_[0]: '$@']";	236	} || "[unable to dump $_[0]: '$@']";
196	}	237	}
197		238
198	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
199		240
200	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
201		242
202	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
203		244
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
212		246
213	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
214
215	=cut
216
217	sub to_json($) {
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
219	JSON::Syck::Dump $_[0]
220	}
221		248
222	=item cf::lock_wait $string	249	=item cf::lock_wait $string
223		250
224	Wait until the given lock is available. See cf::lock_acquire.	251	Wait until the given lock is available. See cf::lock_acquire.
225		252
…		…
231	returned.	258	returned.
232		259
233	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
234	uses map_find and cf::map::load uses map_load).	261	uses map_find and cf::map::load uses map_load).
235		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
236	=cut	267	=cut
237		268
238	our %LOCK;	269	our %LOCK;
239		270
240	sub lock_wait($) {	271	sub lock_wait($) {
…		…
259	# wake up all waiters, to be on the safe side	290	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };	291	$_->ready for @{ delete $LOCK{$key} };
261	}	292	}
262	}	293	}
263		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
264	sub freeze_mainloop {	301	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	302	return unless $TICK_WATCHER->is_active;
266		303
267	my $guard = Coro::guard {	304	my $guard = Coro::guard {
268	$TICK_WATCHER->start;	305	$TICK_WATCHER->start;
269	$WRITE_RUNTIME_WATCHER->start;
270	};	306	};
271	$WRITE_RUNTIME_WATCHER->stop;
272	$TICK_WATCHER->stop;	307	$TICK_WATCHER->stop;
273	$guard	308	$guard
274	}	309	}
275		310
276	=item cf::async { BLOCK }	311	=item cf::async { BLOCK }
…		…
298		333
299	sub sync_job(&) {	334	sub sync_job(&) {
300	my ($job) = @_;	335	my ($job) = @_;
301		336
302	if ($Coro::current == $Coro::main) {	337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
303	# this is the main coro, too bad, we have to block	340	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	341	# till the operation succeeds, freezing the server :/
305		342
306	# TODO: use suspend/resume instead	343	# TODO: use suspend/resume instead
307	# (but this is cancel-safe)	344	# (but this is cancel-safe)
…		…
318		355
319	while ($busy) {	356	while ($busy) {
320	Coro::cede or Event::one_event;	357	Coro::cede or Event::one_event;
321	}	358	}
322		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
323	wantarray ? @res : $res[0]	367	wantarray ? @res : $res[0]
324	} else {	368	} else {
325	# we are in another coroutine, how wonderful, everything just works	369	# we are in another coroutine, how wonderful, everything just works
326		370
327	$job->()	371	$job->()
…		…
347		391
348	$coro	392	$coro
349	}	393	}
350		394
351	sub write_runtime {	395	sub write_runtime {
352	my $runtime = cf::localdir . "/runtime";	396	my $runtime = "$LOCALDIR/runtime";
		397
		398	# first touch the runtime file to show we are still running:
		399	# the fsync below can take a very very long time.
		400
		401	IO::AIO::aio_utime $runtime, undef, undef;
		402
		403	my $guard = cf::lock_acquire "write_runtime";
353		404
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
355	or return;	406	or return;
356		407
357	my $value = $cf::RUNTIME + 90 + 10;	408	my $value = $cf::RUNTIME + 90 + 10;
…		…
363		414
364	# always fsync - this file is important	415	# always fsync - this file is important
365	aio_fsync $fh	416	aio_fsync $fh
366	and return;	417	and return;
367		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
368	close $fh	422	close $fh
369	or return;	423	or return;
370		424
371	aio_rename "$runtime~", $runtime	425	aio_rename "$runtime~", $runtime
372	and return;	426	and return;
373		427
		428	warn "runtime file written.\n";
		429
374	1	430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
375	}	442	}
376		443
377	=back	444	=back
378		445
379	=cut	446	=cut
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
560		627
561	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		632
566	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	634	my $pkg = shift @arg;
568		635
569	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
610	if (ref $_[0]) {	677	if (ref $_[0]) {
611	_object_attach @_;	678	_object_attach @_;
612	} else {	679	} else {
613	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
614	}	681	}
		682	_recalc_want;
615	};	683	};
616		684
617	# all those should be optimised	685	# all those should be optimised
618	sub cf::attachable::detach {	686	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
623	reattach ($obj);	691	reattach ($obj);
624	} else {	692	} else {
625	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
626	}	694	}
		695	_recalc_want;
627	};	696	};
628		697
629	sub cf::attachable::attached {	698	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
631		700
…		…
778	}	847	}
779	} else {	848	} else {
780	aio_unlink $filename;	849	aio_unlink $filename;
781	aio_unlink "$filename.pst";	850	aio_unlink "$filename.pst";
782	}	851	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	852	}
790	}	853	}
791		854
792	sub object_freezer_as_string {	855	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	856	my ($rdata, $objs) = @_;
…		…
799		862
800	sub object_thawer_load {	863	sub object_thawer_load {
801	my ($filename) = @_;	864	my ($filename) = @_;
802		865
803	my ($data, $av);	866	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		867
808	(aio_load $filename, $data) >= 0	868	(aio_load $filename, $data) >= 0
809	or return;	869	or return;
810		870
811	unless (aio_stat "$filename.pst") {	871	unless (aio_stat "$filename.pst") {
…		…
813	or return;	873	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
815	}	875	}
816		876
817	warn sprintf "loading %s (%d)\n",	877	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	878	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	879	return ($data, $av);
820	}	880	}
821		881
822	#############################################################################	882	#############################################################################
823	# command handling &c	883	# command handling &c
…		…
950	Returns the given player object, loading it if necessary (might block).	1010	Returns the given player object, loading it if necessary (might block).
951		1011
952	=cut	1012	=cut
953		1013
954	sub playerdir($) {	1014	sub playerdir($) {
955	cf::localdir	1015	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1016	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1017	}
961		1018
962	sub path($) {	1019	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1020	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1021
965	(playerdir $login) . "/$login.pl"	1022	(playerdir $login) . "/playerdata"
966	}	1023	}
967		1024
968	sub find_active($) {	1025	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1026	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1027	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1040	my $login = $_[0];
984		1041
985	my $guard = cf::lock_acquire "user_find:$login";	1042	my $guard = cf::lock_acquire "user_find:$login";
986		1043
987	$cf::PLAYER{$_[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
988	my $pl = load_pl path $login	1052	my $pl = load_pl path $login
989	or return;	1053	or return;
990	$cf::PLAYER{$login} = $pl	1054	$cf::PLAYER{$login} = $pl
991	}	1055	}
992	}	1056	}
…		…
1029		1093
1030	=cut	1094	=cut
1031		1095
1032	sub quit_character {	1096	sub quit_character {
1033	my ($pl) = @_;	1097	my ($pl) = @_;
		1098
		1099	my $name = $pl->ob->name;
1034		1100
1035	$pl->{deny_save} = 1;	1101	$pl->{deny_save} = 1;
1036	$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
1037		1103
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1109	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1110	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1111	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1112	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1135	}
1050		1136
1051	=item cf::player::list_logins	1137	=item cf::player::list_logins
1052		1138
1053	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
1054	while and may block, so not sync_job-capable, ever.	1140	while and may block, so not sync_job-capable, ever.
1055		1141
1056	=cut	1142	=cut
1057		1143
1058	sub list_logins {	1144	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1145	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1146	or return [];
1061		1147
1062	my @logins;	1148	my @logins;
1063		1149
1064	for my $login (@$dirs) {	1150	for my $login (@$dirs) {
…		…
1099	}	1185	}
1100		1186
1101	\@paths	1187	\@paths
1102	}	1188	}
1103		1189
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1190	=item $player->ext_reply ($msgid, %msg)
1105		1191
1106	Sends an ext reply to the player.	1192	Sends an ext reply to the player.
1107		1193
1108	=cut	1194	=cut
1109		1195
1110	sub ext_reply($$$%) {	1196	sub ext_reply($$%) {
1111	my ($self, $id, %msg) = @_;	1197	my ($self, $id, %msg) = @_;
1112		1198
1113	$msg{msgid} = $id;	1199	$msg{msgid} = $id;
1114		1200
1115	$self->send ("ext " . cf::to_json \%msg);	1201	$self->send ("ext " . cf::to_json \%msg);
1116	}	1202	}
1117		1203
1118	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	}
1119		1244
1120	=back	1245	=back
1121
1122		1246
1123	=head3 cf::map	1247	=head3 cf::map
1124		1248
1125	=over 4	1249	=over 4
1126		1250
…		…
1264		1388
1265	# the original (read-only) location	1389	# the original (read-only) location
1266	sub load_path {	1390	sub load_path {
1267	my ($self) = @_;	1391	my ($self) = @_;
1268		1392
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1393	"$MAPDIR/$self->{path}.map"
1270	}	1394	}
1271		1395
1272	# the temporary/swap location	1396	# the temporary/swap location
1273	sub save_path {	1397	sub save_path {
1274	my ($self) = @_;	1398	my ($self) = @_;
1275		1399
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1401	"$TMPDIR/$path.map"
1278	}	1402	}
1279		1403
1280	# the unique path, undef == no special unique path	1404	# the unique path, undef == no special unique path
1281	sub uniq_path {	1405	sub uniq_path {
1282	my ($self) = @_;	1406	my ($self) = @_;
1283		1407
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1409	"$UNIQUEDIR/$path"
1286	}	1410	}
1287		1411
1288	# and all this just because we cannot iterate over	1412	# and all this just because we cannot iterate over
1289	# all maps in C++...	1413	# all maps in C++...
1290	sub change_all_map_light {	1414	sub change_all_map_light {
…		…
1298	my ($self) = @_;	1422	my ($self) = @_;
1299		1423
1300	utf8::encode (my $save = $self->save_path);	1424	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1427	}
1309		1428
1310	sub load_header_from($) {	1429	sub load_header_from($) {
1311	my ($self, $path) = @_;	1430	my ($self, $path) = @_;
1312		1431
…		…
1362	$self->load_header_orig	1481	$self->load_header_orig
1363	or return;	1482	or return;
1364	$self->prepare_orig;	1483	$self->prepare_orig;
1365	}	1484	}
1366		1485
		1486	$self->default_region (cf::region::find_by_path $self->{path})
		1487	unless $self->default_region;
		1488
1367	1	1489	1
1368	}	1490	}
1369		1491
1370	sub find;	1492	sub find;
1371	sub find {	1493	sub find {
…		…
1404	my ($self) = @_;	1526	my ($self) = @_;
1405		1527
1406	local $self->{deny_reset} = 1; # loading can take a long time	1528	local $self->{deny_reset} = 1; # loading can take a long time
1407		1529
1408	my $path = $self->{path};	1530	my $path = $self->{path};
		1531
		1532	{
1409	my $guard = cf::lock_acquire "map_load:$path";	1533	my $guard = cf::lock_acquire "map_load:$path";
1410		1534
1411	return if $self->in_memory != cf::MAP_SWAPPED;	1535	return if $self->in_memory != cf::MAP_SWAPPED;
1412		1536
1413	$self->in_memory (cf::MAP_LOADING);	1537	$self->in_memory (cf::MAP_LOADING);
1414		1538
1415	$self->alloc;	1539	$self->alloc;
1416		1540
1417	$self->pre_load;	1541	$self->pre_load;
1418
1419	$self->_load_objects ($self->{load_path}, 1)
1420	or return;
1421
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};
1424
1425	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);
1430	}
1431	}
1432
1433	Coro::cede;
1434
1435	# now do the right thing for maps
1436	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;	1542	Coro::cede;
1443	$self->set_darkness_map;	1543
		1544	$self->_load_objects ($self->{load_path}, 1)
		1545	or return;
		1546
		1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1548	if delete $self->{load_original};
		1549
		1550	if (my $uniq = $self->uniq_path) {
		1551	utf8::encode $uniq;
		1552	if (aio_open $uniq, O_RDONLY, 0) {
		1553	$self->clear_unique_items;
		1554	$self->_load_objects ($uniq, 0);
		1555	}
		1556	}
		1557
		1558	Coro::cede;
		1559	# now do the right thing for maps
		1560	$self->link_multipart_objects;
1444	$self->difficulty ($self->estimate_difficulty)	1561	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	1562	unless $self->difficulty;
1446	Coro::cede;	1563	Coro::cede;
		1564
		1565	unless ($self->{deny_activate}) {
		1566	$self->decay_objects;
		1567	$self->fix_auto_apply;
		1568	$self->update_buttons;
		1569	Coro::cede;
		1570	$self->set_darkness_map;
		1571	Coro::cede;
1447	$self->activate;	1572	$self->activate;
		1573	}
		1574
		1575	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	1576	}
1449		1577
1450	$self->post_load;	1578	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	1579	}
1454		1580
1455	sub customise_for {	1581	sub customise_for {
1456	my ($self, $ob) = @_;	1582	my ($self, $ob) = @_;
1457		1583
…		…
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	1724	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		1725
1600	return if $self->players;	1726	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#	1727	return if $self->isa ("ext::map_per_player");#d#
1602		1728
1603	warn "resetting map ", $self->path;#d#	1729	warn "resetting map ", $self->path;
		1730
		1731	$self->in_memory (cf::MAP_SWAPPED);
		1732
		1733	# need to save uniques path
		1734	unless ($self->{deny_save}) {
		1735	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1736
		1737	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1738	if $uniq;
		1739	}
1604		1740
1605	delete $cf::MAP{$self->path};	1741	delete $cf::MAP{$self->path};
1606		1742
1607	$self->in_memory (cf::MAP_SWAPPED);
1608	$self->clear;	1743	$self->clear;
1609		1744
1610	$_->clear_links_to ($self) for values %cf::MAP;	1745	$_->clear_links_to ($self) for values %cf::MAP;
1611		1746
1612	$self->unlink_save;	1747	$self->unlink_save;
…		…
1639	instantiated unique items. May block.	1774	instantiated unique items. May block.
1640		1775
1641	=cut	1776	=cut
1642		1777
1643	sub unique_maps() {	1778	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1779	my $files = aio_readdir $UNIQUEDIR
1645	or return;	1780	or return;
1646		1781
1647	my @paths;	1782	my @paths;
1648		1783
1649	for (@$files) {	1784	for (@$files) {
…		…
1768	$self->deactivate_recursive;	1903	$self->deactivate_recursive;
1769		1904
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	1905	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		1906
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	1908	if $self->map && $self->map->{path} ne "{link}";
1774		1909
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	1911	}
1777		1912
1778	sub cf::object::player::leave_link {	1913	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	1914	my ($self, $map, $x, $y) = @_;
		1915
		1916	return unless $self->contr->active;
1780		1917
1781	my $link_pos = delete $self->{_link_pos};	1918	my $link_pos = delete $self->{_link_pos};
1782		1919
1783	unless ($map) {	1920	unless ($map) {
1784	# restore original map position	1921	# restore original map position
…		…
1802	$map->load;	1939	$map->load;
1803	$map->load_diag;	1940	$map->load_diag;
1804		1941
1805	return unless $self->contr->active;	1942	return unless $self->contr->active;
1806	$self->activate_recursive;	1943	$self->activate_recursive;
		1944
		1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1807	$self->enter_map ($map, $x, $y);	1946	$self->enter_map ($map, $x, $y);
1808	}	1947	}
1809		1948
1810	cf::player->attach (
1811	on_logout => sub {
1812	my ($pl) = @_;
1813
1814	# abort map switching before logout
1815	if ($pl->ob->{_link_pos}) {
1816	cf::sync_job {
1817	$pl->ob->leave_link
1818	};
1819	}
1820	},
1821	on_login => sub {
1822	my ($pl) = @_;
1823
1824	# try to abort aborted map switching on player login :)
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841
1842	=item $player_object->goto ($path, $x, $y)	1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1843		1950
		1951	Moves the player to the given map-path and coordinates by first freezing
		1952	her, loading and preparing them map, calling the provided $check callback
		1953	that has to return the map if sucecssful, and then unfreezes the player on
		1954	the new (success) or old (failed) map position.
		1955
1844	=cut	1956	=cut
		1957
		1958	our $GOTOGEN;
1845		1959
1846	sub cf::object::player::goto {	1960	sub cf::object::player::goto {
1847	my ($self, $path, $x, $y) = @_;	1961	my ($self, $path, $x, $y, $check) = @_;
		1962
		1963	# do generation counting so two concurrent goto's will be executed in-order
		1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1848		1965
1849	$self->enter_link;	1966	$self->enter_link;
1850		1967
1851	(async {	1968	(async {
1852	my $map = eval {	1969	my $map = eval {
1853	my $map = cf::map::find $path;	1970	my $map = cf::map::find $path;
		1971
		1972	if ($map) {
1854	$map = $map->customise_for ($self) if $map;	1973	$map = $map->customise_for ($self);
		1974	$map = $check->($map) if $check && $map;
		1975	} else {
		1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1977	}
		1978
1855	$map	1979	$map
		1980	};
		1981
		1982	if ($@) {
		1983	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1984	LOG llevError | logBacktrace, Carp::longmess $@;
1856	} or	1985	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		1986
		1987	if ($gen == $self->{_goto_generation}) {
		1988	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	1989	$self->leave_link ($map, $x, $y);
		1990	}
1860	})->prio (1);	1991	})->prio (1);
1861	}	1992	}
1862		1993
1863	=item $player_object->enter_exit ($exit_object)	1994	=item $player_object->enter_exit ($exit_object)
1864		1995
…		…
1903		2034
1904	$rmp->{random_seed} ||= $exit->random_seed;	2035	$rmp->{random_seed} ||= $exit->random_seed;
1905		2036
1906	my $data = cf::to_json $rmp;	2037	my $data = cf::to_json $rmp;
1907	my $md5 = Digest::MD5::md5_hex $data;	2038	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2039	my $meta = "$RANDOMDIR/$md5.meta";
1909		2040
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2042	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2043	undef $fh;
1913	aio_rename "$meta~", $meta;	2044	aio_rename "$meta~", $meta;
…		…
1922		2053
1923	return unless $self->type == cf::PLAYER;	2054	return unless $self->type == cf::PLAYER;
1924		2055
1925	if ($exit->slaying eq "/!") {	2056	if ($exit->slaying eq "/!") {
1926	#TODO: this should de-fi-ni-te-ly not be a sync-job	2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2058	# the problem is that $exit might not survive long enough
		2059	# so it needs to be done right now, right here
1927	cf::sync_job { prepare_random_map $exit };	2060	cf::sync_job { prepare_random_map $exit };
1928	}	2061	}
1929		2062
1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1931	my $hp = $exit->stats->hp;	2064	my $hp = $exit->stats->hp;
…		…
1939	$self->goto ($slaying, $hp, $sp);	2072	$self->goto ($slaying, $hp, $sp);
1940		2073
1941	1;	2074	1;
1942	}) {	2075	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2076	$self->message ("Something went wrong deep within the crossfire server. "
1944	. "I'll try to bring you back to the map you were before. "	2077	. "I'll try to bring you back to the map you were before. "
1945	. "Please report this to the dungeon master!",	2078	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2079	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2080
1948	warn "ERROR in enter_exit: $@";	2081	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2082	$self->leave_link;
1950	}	2083	}
1951	})->prio (1);	2084	})->prio (1);
…		…
1964		2097
1965	sub cf::client::send_drawinfo {	2098	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2099	my ($self, $text, $flags) = @_;
1967		2100
1968	utf8::encode $text;	2101	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2103	}
1971		2104
		2105	=item $client->ext_event ($type, %msg)
		2106
		2107	Sends an exti event to the client.
		2108
		2109	=cut
		2110
		2111	sub cf::client::ext_event($$%) {
		2112	my ($self, $type, %msg) = @_;
		2113
		2114	$msg{msgtype} = "event_$type";
		2115	$self->send_packet ("ext " . cf::to_json \%msg);
		2116	}
1972		2117
1973	=item $success = $client->query ($flags, "text", \&cb)	2118	=item $success = $client->query ($flags, "text", \&cb)
1974		2119
1975	Queues a query to the client, calling the given callback with	2120	Queues a query to the client, calling the given callback with
1976	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2073		2218
2074	# here we export the classes and methods available to script code	2219	# here we export the classes and methods available to script code
2075		2220
2076	=pod	2221	=pod
2077		2222
2078	The following fucntions and emthods are available within a safe environment:	2223	The following functions and methods are available within a safe environment:
2079		2224
2080	cf::object contr pay_amount pay_player map	2225	cf::object contr pay_amount pay_player map
2081	cf::object::player player	2226	cf::object::player player
2082	cf::player peaceful	2227	cf::player peaceful
2083	cf::map trigger	2228	cf::map trigger
…		…
2168	#############################################################################	2313	#############################################################################
2169		2314
2170	=head2 EXTENSION DATABASE SUPPORT	2315	=head2 EXTENSION DATABASE SUPPORT
2171		2316
2172	Crossfire maintains a very simple database for extension use. It can	2317	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which	2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2174	excludes objects.	2319	convert to/from binary).
2175		2320
2176	The parameter C<$family> should best start with the name of the extension	2321	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.	2322	using it, it should be unique.
2178		2323
2179	=over 4	2324	=over 4
2180		2325
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key	2326	=item $value = cf::db_get $family => $key
2188		2327
2189	Returns a single value from the database	2328	Returns a single value from the database.
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195		2329
2196	=item cf::db_put $family => $key => $value	2330	=item cf::db_put $family => $key => $value
2197		2331
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you	2332	Stores the given C<$value> in the family.
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208		2333
2209	=cut	2334	=cut
2210		2335
2211	our $DB;	2336	our $DB;
2212		2337
2213	{	2338	sub db_init {
2214	my $path = cf::localdir . "/database.pst";	2339	unless ($DB) {
		2340	$DB = BDB::db_create $DB_ENV;
2215		2341
2216	sub db_load() {	2342	cf::sync_job {
2217	$DB = stat $path ? Storable::retrieve $path : { };	2343	eval {
2218	}	2344	$DB->set_flags (BDB::CHKSUM);
2219		2345
2220	my $pid;	2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2221		2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2222	sub db_save() {	2348	cf::cleanup "db_open(db): $!" if $!;
2223	waitpid $pid, 0 if $pid;	2349	};
2224	if (0 == ($pid = fork)) {	2350	cf::cleanup "db_open(db): $@" if $@;
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}	2351	};
2230	}	2352	}
		2353	}
2231		2354
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {	2355	sub db_get($$) {
2254	@_ >= 2	2356	my $key = "$_[0]/$_[1]";
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258		2357
		2358	cf::sync_job {
		2359	BDB::db_get $DB, undef, $key, my $data;
		2360
		2361	$! ? ()
		2362	: $data
		2363	}
		2364	}
		2365
2259	sub db_put($$;$) {	2366	sub db_put($$$) {
2260	if (@_ >= 3) {	2367	BDB::dbreq_pri 4;
2261	$DB->{$_[0]}{$_[1]} = $_[2];	2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2262	} else {	2369	}
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267		2370
2268	cf::global->attach (	2371	=item cf::cache $id => [$paths...], $processversion => $process
2269	prio => 10000,	2372
2270	on_cleanup => sub {	2373	Generic caching function that returns the value of the resource $id,
2271	db_sync;	2374	caching and regenerating as required.
		2375
		2376	This function can block.
		2377
		2378	=cut
		2379
		2380	sub cache {
		2381	my ($id, $src, $processversion, $process) = @_;
		2382
		2383	my $meta =
		2384	join "\x00",
		2385	$processversion,
		2386	map {
		2387	aio_stat $_
		2388	and Carp::croak "$_: $!";
		2389
		2390	($_, (stat _)[7,9])
		2391	} @$src;
		2392
		2393	my $dbmeta = db_get cache => "$id/meta";
		2394	if ($dbmeta ne $meta) {
		2395	# changed, we may need to process
		2396
		2397	my @data;
		2398	my $md5;
		2399
		2400	for (0 .. $#$src) {
		2401	0 <= aio_load $src->[$_], $data[$_]
		2402	or Carp::croak "$src->[$_]: $!";
2272	},	2403	}
2273	);	2404
		2405	# if processing is expensive, check
		2406	# checksum first
		2407	if (1) {
		2408	$md5 =
		2409	join "\x00",
		2410	$processversion,
		2411	map {
		2412	Coro::cede;
		2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2414	} 0.. $#$src;
		2415
		2416
		2417	my $dbmd5 = db_get cache => "$id/md5";
		2418	if ($dbmd5 eq $md5) {
		2419	db_put cache => "$id/meta", $meta;
		2420
		2421	return db_get cache => "$id/data";
		2422	}
		2423	}
		2424
		2425	my $t1 = Time::HiRes::time;
		2426	my $data = $process->(\@data);
		2427	my $t2 = Time::HiRes::time;
		2428
		2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2430
		2431	db_put cache => "$id/data", $data;
		2432	db_put cache => "$id/md5" , $md5;
		2433	db_put cache => "$id/meta", $meta;
		2434
		2435	return $data;
		2436	}
		2437
		2438	db_get cache => "$id/data"
		2439	}
		2440
		2441	=item fork_call { }, $args
		2442
		2443	Executes the given code block with the given arguments in a seperate
		2444	process, returning the results. Everything must be serialisable with
		2445	Coro::Storable. May, of course, block. Note that the executed sub may
		2446	never block itself or use any form of Event handling.
		2447
		2448	=cut
		2449
		2450	sub fork_call(&@) {
		2451	my ($cb, @args) = @_;
		2452
		2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2454	# or die "socketpair: $!";
		2455	pipe my $fh1, my $fh2
		2456	or die "pipe: $!";
		2457
		2458	if (my $pid = fork) {
		2459	close $fh2;
		2460
		2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2462	$res = Coro::Storable::thaw $res;
		2463
		2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2465
		2466	die $$res unless "ARRAY" eq ref $res;
		2467
		2468	return wantarray ? @$res : $res->[-1];
		2469	} else {
		2470	reset_signals;
		2471	local $SIG{__WARN__};
		2472	local $SIG{__DIE__};
		2473	eval {
		2474	close $fh1;
		2475
		2476	my @res = eval { $cb->(@args) };
		2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2478	};
		2479
		2480	warn $@ if $@;
		2481	_exit 0;
		2482	}
2274	}	2483	}
2275		2484
2276	#############################################################################	2485	#############################################################################
2277	# the server's init and main functions	2486	# the server's init and main functions
2278		2487
2279	sub load_resources {	2488	sub load_facedata($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2489	my ($path) = @_;
		2490
		2491	warn "loading facedata from $path\n";
		2492
		2493	my $facedata;
		2494	0 < aio_load $path, $facedata
		2495	or die "$path: $!";
		2496
		2497	$facedata = Coro::Storable::thaw $facedata;
		2498
		2499	$facedata->{version} == 2
		2500	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2501
		2502	{
		2503	my $faces = $facedata->{faceinfo};
		2504
		2505	while (my ($face, $info) = each %$faces) {
		2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2510	Coro::cede;
		2511	}
		2512
		2513	while (my ($face, $info) = each %$faces) {
		2514	next unless $info->{smooth};
		2515	my $idx = cf::face::find $face
		2516	or next;
		2517	if (my $smooth = cf::face::find $info->{smooth}) {
		2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2519	} else {
		2520	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2521	}
		2522	Coro::cede;
		2523	}
		2524	}
		2525
		2526	{
		2527	my $anims = $facedata->{animinfo};
		2528
		2529	while (my ($anim, $info) = each %$anims) {
		2530	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2531	Coro::cede;
		2532	}
		2533
		2534	cf::anim::invalidate_all; # d'oh
		2535	}
		2536
		2537	1
		2538	}
		2539
		2540	sub reload_regions {
		2541	load_resource_file "$MAPDIR/regions"
2281	or die "unable to load regions file\n";#d#	2542	or die "unable to load regions file\n";
		2543	}
		2544
		2545	sub reload_facedata {
		2546	load_facedata "$DATADIR/facedata"
		2547	or die "unable to load facedata\n";
		2548	}
		2549
		2550	sub reload_archetypes {
		2551	load_resource_file "$DATADIR/archetypes"
		2552	or die "unable to load archetypes\n";
		2553	}
		2554
		2555	sub reload_treasures {
		2556	load_resource_file "$DATADIR/treasures"
		2557	or die "unable to load treasurelists\n";
		2558	}
		2559
		2560	sub reload_resources {
		2561	warn "reloading resource files...\n";
		2562
		2563	reload_regions;
		2564	reload_facedata;
		2565	#reload_archetypes;#d#
		2566	reload_archetypes;
		2567	reload_treasures;
		2568
		2569	warn "finished reloading resource files\n";
		2570	}
		2571
		2572	sub init {
		2573	reload_resources;
2282	}	2574	}
2283		2575
2284	sub cfg_load {	2576	sub cfg_load {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	2577	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	2578	or return;
2287		2579
2288	local $/;	2580	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	2581	*CFG = YAML::Syck::Load <$fh>;
2290		2582
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2590	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	2591	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	2592	};
2301	warn $@ if $@;	2593	warn $@ if $@;
2302	}	2594	}
2303	}
2304
2305	sub init {
2306	load_resources;
2307	}	2595	}
2308		2596
2309	sub main {	2597	sub main {
2310	# we must not ever block the main coroutine	2598	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	2599	local $Coro::idle = sub {
…		…
2314	Event::one_event;	2602	Event::one_event;
2315	})->prio (Coro::PRIO_MAX);	2603	})->prio (Coro::PRIO_MAX);
2316	};	2604	};
2317		2605
2318	cfg_load;	2606	cfg_load;
2319	db_load;	2607	db_init;
2320	load_extensions;	2608	load_extensions;
2321		2609
2322	$TICK_WATCHER->start;	2610	$TICK_WATCHER->start;
2323	Event::loop;	2611	Event::loop;
2324	}	2612	}
…		…
2363	my $map = $cf::MAP{$path} or next;	2651	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	2652	$map->valid or next;
2365	$map->save;	2653	$map->save;
2366	}	2654	}
2367	warn "end emergency map save\n";	2655	warn "end emergency map save\n";
		2656
		2657	warn "begin emergency database checkpoint\n";
		2658	BDB::db_env_txn_checkpoint $DB_ENV;
		2659	warn "end emergency database checkpoint\n";
2368	};	2660	};
2369		2661
2370	warn "leave emergency perl save\n";	2662	warn "leave emergency perl save\n";
2371	}	2663	}
2372		2664
		2665	sub post_cleanup {
		2666	my ($make_core) = @_;
		2667
		2668	warn Carp::longmess "post_cleanup backtrace"
		2669	if $make_core;
		2670	}
		2671
2373	sub reload() {	2672	sub do_reload_perl() {
2374	# can/must only be called in main	2673	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	2674	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	2675	warn "can only reload from main coroutine";
2377	return;	2676	return;
2378	}	2677	}
2379		2678
2380	warn "reloading...";	2679	warn "reloading...";
2381		2680
2382	warn "cancelling server ticker";	2681	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		2682
		2683	cf::sync_job {
		2684	cf::write_runtime; # external watchdog should not bark
2385	cf::emergency_save;	2685	cf::emergency_save;
		2686	cf::write_runtime; # external watchdog should not bark
2386		2687
2387	eval {	2688	warn "syncing database to disk";
		2689	BDB::db_env_txn_checkpoint $DB_ENV;
		2690
2388	# if anything goes wrong in here, we should simply crash as we already saved	2691	# if anything goes wrong in here, we should simply crash as we already saved
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392		2692
2393	warn "cancelling all WF_AUTOCANCEL watchers";	2693	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {	2694	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;	2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}	2696	}
2397		2697
2398	warn "flushing outstanding aio requests";	2698	warn "flushing outstanding aio requests";
2399	for (;;) {	2699	for (;;) {
		2700	BDB::flush;
2400	IO::AIO::flush;	2701	IO::AIO::flush;
2401	Coro::cede;	2702	Coro::cede;
2402	last unless IO::AIO::nreqs;	2703	last unless IO::AIO::nreqs || BDB::nreqs;
2403	warn "iterate...";	2704	warn "iterate...";
2404	}	2705	}
		2706
		2707	++$RELOAD;
2405		2708
2406	warn "cancelling all extension coros";	2709	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	2710	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	2711	%EXT_CORO = ();
2409		2712
…		…
2449	Symbol::delete_package "safe::$_"	2752	Symbol::delete_package "safe::$_"
2450	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2451		2754
2452	warn "unloading cf.pm \"a bit\"";	2755	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	2756	delete $INC{"cf.pm"};
		2757	delete $INC{"cf/pod.pm"};
2454		2758
2455	# don't, removes xs symbols, too,	2759	# don't, removes xs symbols, too,
2456	# and global variables created in xs	2760	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	2761	#Symbol::delete_package __PACKAGE__;
2458		2762
…		…
2462	require cf;	2766	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2464		2768
2465	warn "loading config and database again";	2769	warn "loading config and database again";
2466	cf::cfg_load;	2770	cf::cfg_load;
2467	cf::db_load;
2468		2771
2469	warn "loading extensions";	2772	warn "loading extensions";
2470	cf::load_extensions;	2773	cf::load_extensions;
2471		2774
2472	warn "reattaching attachments to objects/players";	2775	warn "reattaching attachments to objects/players";
2473	_global_reattach;	2776	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	2777	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	2778	reattach $_ for values %MAP;
		2779	warn "reattaching attachments to players";
		2780	reattach $_ for values %PLAYER;
2476		2781
2477	warn "loading reloadable resources";	2782	warn "leaving sync_job";
2478	load_resources;
2479		2783
2480	warn "restarting server ticker";	2784	1
2481		2785	} or do {
2482	$TICK_WATCHER->start;
2483	};
2484
2485	if ($@) {
2486	warn $@;	2786	warn $@;
2487	warn "error while reloading, exiting.";	2787	warn "error while reloading, exiting.";
2488	exit 1;	2788	exit 1;
2489	}	2789	};
2490		2790
2491	warn "reloaded";	2791	warn "reloaded";
2492	};	2792	};
2493		2793
2494	our $RELOAD_WATCHER; # used only during reload	2794	our $RELOAD_WATCHER; # used only during reload
2495		2795
		2796	sub reload_perl() {
		2797	# doing reload synchronously and two reloads happen back-to-back,
		2798	# coro crashes during coro_state_free->destroy here.
		2799
		2800	$RELOAD_WATCHER ||= Event->timer (
		2801	reentrant => 0,
		2802	after => 0,
		2803	data => WF_AUTOCANCEL,
		2804	cb => sub {
		2805	do_reload_perl;
		2806	undef $RELOAD_WATCHER;
		2807	},
		2808	);
		2809	}
		2810
2496	register_command "reload" => sub {	2811	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	2812	my ($who, $arg) = @_;
2498		2813
2499	if ($who->flag (FLAG_WIZ)) {	2814	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	2815	$who->message ("reloading server.");
2501		2816	async { reload_perl };
2502	# doing reload synchronously and two reloads happen back-to-back,
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);
2514	}	2817	}
2515	};	2818	};
2516		2819
2517	unshift @INC, $LIBDIR;	2820	unshift @INC, $LIBDIR;
2518		2821
2519	my $bug_warning = 0;	2822	my $bug_warning = 0;
2520		2823
		2824	our @WAIT_FOR_TICK;
		2825	our @WAIT_FOR_TICK_BEGIN;
		2826
		2827	sub wait_for_tick {
		2828	return unless $TICK_WATCHER->is_active;
		2829	return if $Coro::current == $Coro::main;
		2830
		2831	my $signal = new Coro::Signal;
		2832	push @WAIT_FOR_TICK, $signal;
		2833	$signal->wait;
		2834	}
		2835
		2836	sub wait_for_tick_begin {
		2837	return unless $TICK_WATCHER->is_active;
		2838	return if $Coro::current == $Coro::main;
		2839
		2840	my $signal = new Coro::Signal;
		2841	push @WAIT_FOR_TICK_BEGIN, $signal;
		2842	$signal->wait;
		2843	}
		2844
		2845	my $min = 1e6;#d#
		2846	my $avg = 10;
2521	$TICK_WATCHER = Event->timer (	2847	$TICK_WATCHER = Event->timer (
2522	reentrant => 0,	2848	reentrant => 0,
2523	parked => 1,	2849	parked => 1,
2524	prio => 0,	2850	prio => 0,
2525	at => $NEXT_TICK || $TICK,	2851	at => $NEXT_TICK || $TICK,
…		…
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	2856	unless ++$bug_warning > 10;
2531	return;	2857	return;
2532	}	2858	}
2533		2859
2534	$NOW = Event::time;	2860	$NOW = $tick_start = Event::time;
2535		2861
2536	cf::server_tick; # one server iteration	2862	cf::server_tick; # one server iteration
		2863
		2864	0 && sync_job {#d#
		2865	for(1..10) {
		2866	my $t = Event::time;
		2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2868	or die;
		2869
		2870	$map->width (50);
		2871	$map->height (50);
		2872	$map->alloc;
		2873	$map->_load_objects ("/tmp/x.map", 1);
		2874	my $t = Event::time - $t;
		2875
		2876	#next unless $t < 0.0013;#d#
		2877	if ($t < $min) {
		2878	$min = $t;
		2879	}
		2880	$avg = $avg * 0.99 + $t * 0.01;
		2881	}
		2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2883	exit 0;
		2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2885	};
		2886
2537	$RUNTIME += $TICK;	2887	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;	2888	$NEXT_TICK += $TICK;
2539		2889
2540	$WAIT_FOR_TICK->broadcast;	2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
2542		2892	Coro::async_pool {
2543	Event::sweep;	2893	write_runtime
2544	Coro::cede_notself;	2894	or warn "ERROR: unable to write runtime file: $!";
		2895	};
2545		2896	}
		2897
2546	# my $AFTER = Event::time;	2898	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#	2899	# warn $AFTER - $NOW;#d#
2548		2900
		2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2902	$sig->send;
		2903	}
		2904	while (my $sig = shift @WAIT_FOR_TICK) {
		2905	$sig->send;
		2906	}
		2907
		2908	$NOW = Event::time;
		2909
2549	# if we are delayed by four ticks or more, skip them all	2910	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2551		2912
2552	$TICK_WATCHER->at ($NEXT_TICK);	2913	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;	2914	$TICK_WATCHER->start;
		2915
		2916	$LOAD = ($NOW - $tick_start) / $TICK;
		2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2918
		2919	_post_tick;
		2920
		2921
2554	},	2922	},
2555	);	2923	);
2556		2924
		2925	{
		2926	BDB::max_poll_time $TICK * 0.1;
		2927	$BDB_POLL_WATCHER = Event->io (
		2928	reentrant => 0,
		2929	fd => BDB::poll_fileno,
		2930	poll => 'r',
		2931	prio => 0,
		2932	data => WF_AUTOCANCEL,
		2933	cb => \&BDB::poll_cb,
		2934	);
		2935	BDB::min_parallel 8;
		2936
		2937	BDB::set_sync_prepare {
		2938	my $status;
		2939	my $current = $Coro::current;
		2940	(
		2941	sub {
		2942	$status = $!;
		2943	$current->ready; undef $current;
		2944	},
		2945	sub {
		2946	Coro::schedule while defined $current;
		2947	$! = $status;
		2948	},
		2949	)
		2950	};
		2951
		2952	unless ($DB_ENV) {
		2953	$DB_ENV = BDB::db_env_create;
		2954
		2955	cf::sync_job {
		2956	eval {
		2957	BDB::db_env_open
		2958	$DB_ENV,
		2959	$BDBDIR,
		2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2962	0666;
		2963
		2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2965
		2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2967	$DB_ENV->set_lk_detect;
		2968	};
		2969
		2970	cf::cleanup "db_env_open(db): $@" if $@;
		2971	};
		2972	}
		2973	}
		2974
		2975	{
		2976	IO::AIO::min_parallel 8;
		2977
		2978	undef $Coro::AIO::WATCHER;
2557	IO::AIO::max_poll_time $TICK * 0.1;	2979	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (	2980	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,	2981	reentrant => 0,
		2982	data => WF_AUTOCANCEL,
2562	fd => IO::AIO::poll_fileno,	2983	fd => IO::AIO::poll_fileno,
2563	poll => 'r',	2984	poll => 'r',
2564	prio => 6,	2985	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,	2986	cb => \&IO::AIO::poll_cb,
2567	);	2987	);
		2988	}
2568		2989
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	2990	my $_log_backtrace;
2570	reentrant => 0,	2991
2571	data => WF_AUTOCANCEL,	2992	sub _log_backtrace {
2572	after => 1,	2993	my ($msg, @addr) = @_;
2573	interval => 10,	2994
2574	prio => 6, # keep it lowest so it acts like a watchdog	2995	$msg =~ s/\n//;
2575	cb => Coro::unblock_sub {	2996
2576	write_runtime	2997	# limit the # of concurrent backtraces
2577	or warn "ERROR: unable to write runtime file: $!";	2998	if ($_log_backtrace < 2) {
		2999	++$_log_backtrace;
		3000	async {
		3001	my @bt = fork_call {
		3002	@addr = map { sprintf "%x", $_ } @addr;
		3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3005	or die "addr2line: $!";
		3006
		3007	my @funcs;
		3008	my @res = <$fh>;
		3009	chomp for @res;
		3010	while (@res) {
		3011	my ($func, $line) = splice @res, 0, 2, ();
		3012	push @funcs, "[$func] $line";
		3013	}
		3014
		3015	@funcs
		3016	};
		3017
		3018	LOG llevInfo, "[ABT] $msg\n";
		3019	LOG llevInfo, "[ABT] $_\n" for @bt;
		3020	--$_log_backtrace;
		3021	};
		3022	} else {
		3023	LOG llevInfo, "[ABT] $msg\n";
		3024	LOG llevInfo, "[ABT] [suppressed]\n";
2578	},	3025	}
2579	);	3026	}
		3027
		3028	# load additional modules
		3029	use cf::pod;
2580		3030
2581	END { cf::emergency_save }	3031	END { cf::emergency_save }
2582		3032
2583	1	3033	1
2584		3034

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