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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.271 by root, Fri Jun 1 06:04:08 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;
87		113
88	sub cf::map::normalise;	114	sub cf::map::normalise;
89		115
…		…
100	=item $cf::RUNTIME	126	=item $cf::RUNTIME
101		127
102	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
103	every server tick.	129	every server tick.
104		130
105	=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
106		134
107	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		139
110	=item $cf::NOW	140	=item $cf::NOW
111		141
112	The time of the last (current) server tick.	142	The time of the last (current) server tick.
113		143
114	=item $cf::TICK	144	=item $cf::TICK
115		145
116	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.
117		157
118	=item %cf::CFG	158	=item %cf::CFG
119		159
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	161	from wherever your confdir points to.
122		162
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		164
125	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
126	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
127	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.
128	window of cpu time available, or simply to synchronise to the server tick.
129		168
130	=back	169	=back
131		170
132	=cut	171	=cut
133		172
134	BEGIN {	173	BEGIN {
135	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	175	my $msg = join "", @_;
137	utf8::encode $msg;
138		176
139	$msg .= "\n"	177	$msg .= "\n"
140	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
141		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
142	LOG llevError, $msg;	183	LOG llevError, $msg;
143	};	184	};
144	}	185	}
145		186
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
192	$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;
193	$d	234	$d
194	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
195	}	236	}
196		237
197	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
198		239
199	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
200		241
201	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
202		243
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
211		245
212	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
213
214	=cut
215
216	sub to_json($) {
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
218	JSON::Syck::Dump $_[0]
219	}
220		247
221	=item cf::lock_wait $string	248	=item cf::lock_wait $string
222		249
223	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
224		251
…		…
230	returned.	257	returned.
231		258
232	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
233	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
234		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
235	=cut	266	=cut
236		267
237	our %LOCK;	268	our %LOCK;
238		269
239	sub lock_wait($) {	270	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
260	}	291	}
261	}	292	}
262		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
263	sub freeze_mainloop {	300	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
265		302
266	my $guard = Coro::guard {	303	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	304	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	305	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
272	$guard	307	$guard
273	}	308	}
274		309
275	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
297		332
298	sub sync_job(&) {	333	sub sync_job(&) {
299	my ($job) = @_;	334	my ($job) = @_;
300		335
301	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
302	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
304		341
305	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
317		354
318	while ($busy) {	355	while ($busy) {
319	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
320	}	357	}
321		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
322	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
323	} else {	367	} else {
324	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
325		369
326	$job->()	370	$job->()
…		…
346		390
347	$coro	391	$coro
348	}	392	}
349		393
350	sub write_runtime {	394	sub write_runtime {
351	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	IO::AIO::aio_utime $runtime, undef, undef;
		401
		402	my $guard = cf::lock_acquire "write_runtime";
352		403
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	404	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
354	or return;	405	or return;
355		406
356	my $value = $cf::RUNTIME + 90 + 10;	407	my $value = $cf::RUNTIME + 90 + 10;
…		…
358	# 60 allows for the watchdog to kill the server.	409	# 60 allows for the watchdog to kill the server.
359		410
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	411	(aio_write $fh, 0, (length $value), $value, 0) <= 0
361	and return;	412	and return;
362		413
		414	# always fsync - this file is important
363	aio_fsync $fh	415	aio_fsync $fh
364	and return;	416	and return;
365		417
		418	# touch it again to show we are up-to-date
		419	aio_utime $fh, undef, undef;
		420
366	close $fh	421	close $fh
367	or return;	422	or return;
368		423
369	aio_rename "$runtime~", $runtime	424	aio_rename "$runtime~", $runtime
370	and return;	425	and return;
371		426
		427	warn "runtime file written.\n";#d#
		428
372	1	429	1
		430	}
		431
		432	=item cf::datalog type => key => value, ...
		433
		434	Log a datalog packet of the given type with the given key-value pairs.
		435
		436	=cut
		437
		438	sub datalog($@) {
		439	my ($type, %kv) = @_;
		440	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	441	}
374		442
375	=back	443	=back
376		444
377	=cut	445	=cut
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	625	$registry = $CB_TYPE[$object_type] ||= [];
558		626
559	} elsif ($type eq "subtype") {	627	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	628	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	629	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	630	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		631
564	} elsif ($type eq "package") {	632	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	633	my $pkg = shift @arg;
566		634
567	while (my ($name, $id) = each %cb_id) {	635	while (my ($name, $id) = each %cb_id) {
…		…
608	if (ref $_[0]) {	676	if (ref $_[0]) {
609	_object_attach @_;	677	_object_attach @_;
610	} else {	678	} else {
611	_attach shift->_attach_registry, @_;	679	_attach shift->_attach_registry, @_;
612	}	680	}
		681	_recalc_want;
613	};	682	};
614		683
615	# all those should be optimised	684	# all those should be optimised
616	sub cf::attachable::detach {	685	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	686	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	689	delete $obj->{_attachment}{$name};
621	reattach ($obj);	690	reattach ($obj);
622	} else {	691	} else {
623	Carp::croak "cannot, currently, detach class attachments";	692	Carp::croak "cannot, currently, detach class attachments";
624	}	693	}
		694	_recalc_want;
625	};	695	};
626		696
627	sub cf::attachable::attached {	697	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	698	my ($obj, $name) = @_;
629		699
…		…
752	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
753		823
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	828	close $fh;
759		829
760	if (@$objs) {	830	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	836	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
768	}	838	}
769	} else {	839	} else {
770	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
776	}	846	}
777	} else {	847	} else {
778	aio_unlink $filename;	848	aio_unlink $filename;
779	aio_unlink "$filename.pst";	849	aio_unlink "$filename.pst";
780	}	850	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	851	}
788	}	852	}
789		853
790	sub object_freezer_as_string {	854	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	855	my ($rdata, $objs) = @_;
…		…
797		861
798	sub object_thawer_load {	862	sub object_thawer_load {
799	my ($filename) = @_;	863	my ($filename) = @_;
800		864
801	my ($data, $av);	865	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		866
806	(aio_load $filename, $data) >= 0	867	(aio_load $filename, $data) >= 0
807	or return;	868	or return;
808		869
809	unless (aio_stat "$filename.pst") {	870	unless (aio_stat "$filename.pst") {
…		…
948	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
949		1010
950	=cut	1011	=cut
951		1012
952	sub playerdir($) {	1013	sub playerdir($) {
953	cf::localdir	1014	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1016	}
959		1017
960	sub path($) {	1018	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1020
963	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
964	}	1022	}
965		1023
966	sub find_active($) {	1024	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1039	my $login = $_[0];
982		1040
983	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
984		1042
985	$cf::PLAYER{$_[0]} || do {	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
986	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
987	or return;	1052	or return;
988	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
989	}	1054	}
990	}	1055	}
…		…
1027		1092
1028	=cut	1093	=cut
1029		1094
1030	sub quit_character {	1095	sub quit_character {
1031	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1032		1099
1033	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1102
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1046	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
1047	}	1134	}
1048		1135
1049	=item cf::player::list_logins	1136	=item cf::player::list_logins
1050		1137
1051	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1053		1140
1054	=cut	1141	=cut
1055		1142
1056	sub list_logins {	1143	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1145	or return [];
1059		1146
1060	my @logins;	1147	my @logins;
1061		1148
1062	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1079	=cut	1166	=cut
1080		1167
1081	sub maps($) {	1168	sub maps($) {
1082	my ($pl) = @_;	1169	my ($pl) = @_;
1083		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
		1172
1084	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1085	or return;	1174	or return;
1086		1175
1087	my @paths;	1176	my @paths;
1088		1177
1089	for (@$files) {	1178	for (@$files) {
1090	utf8::decode $_;	1179	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1181	next unless /^$PATH_SEP/o;
1093		1182
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1183	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1184	}
1096		1185
1097	\@paths	1186	\@paths
1098	}	1187	}
1099		1188
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1101		1190
1102	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1103		1192
1104	=cut	1193	=cut
1105		1194
1106	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1107	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1108		1197
1109	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1110		1199
1111	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1112	}	1201	}
1113		1202
1114	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1115		1243
1116	=back	1244	=back
1117
1118		1245
1119	=head3 cf::map	1246	=head3 cf::map
1120		1247
1121	=over 4	1248	=over 4
1122		1249
…		…
1260		1387
1261	# the original (read-only) location	1388	# the original (read-only) location
1262	sub load_path {	1389	sub load_path {
1263	my ($self) = @_;	1390	my ($self) = @_;
1264		1391
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1392	"$MAPDIR/$self->{path}.map"
1266	}	1393	}
1267		1394
1268	# the temporary/swap location	1395	# the temporary/swap location
1269	sub save_path {	1396	sub save_path {
1270	my ($self) = @_;	1397	my ($self) = @_;
1271		1398
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1400	"$TMPDIR/$path.map"
1274	}	1401	}
1275		1402
1276	# the unique path, undef == no special unique path	1403	# the unique path, undef == no special unique path
1277	sub uniq_path {	1404	sub uniq_path {
1278	my ($self) = @_;	1405	my ($self) = @_;
1279		1406
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1408	"$UNIQUEDIR/$path"
1282	}	1409	}
1283		1410
1284	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1285	# all maps in C++...	1412	# all maps in C++...
1286	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1294	my ($self) = @_;	1421	my ($self) = @_;
1295		1422
1296	utf8::encode (my $save = $self->save_path);	1423	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1426	}
1305		1427
1306	sub load_header_from($) {	1428	sub load_header_from($) {
1307	my ($self, $path) = @_;	1429	my ($self, $path) = @_;
1308		1430
…		…
1358	$self->load_header_orig	1480	$self->load_header_orig
1359	or return;	1481	or return;
1360	$self->prepare_orig;	1482	$self->prepare_orig;
1361	}	1483	}
1362		1484
		1485	$self->default_region (cf::region::find_by_path $self->{path})
		1486	unless $self->default_region;
		1487
1363	1	1488	1
1364	}	1489	}
1365		1490
1366	sub find;	1491	sub find;
1367	sub find {	1492	sub find {
…		…
1400	my ($self) = @_;	1525	my ($self) = @_;
1401		1526
1402	local $self->{deny_reset} = 1; # loading can take a long time	1527	local $self->{deny_reset} = 1; # loading can take a long time
1403		1528
1404	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1405	my $guard = cf::lock_acquire "map_load:$path";	1532	my $guard = cf::lock_acquire "map_load:$path";
1406		1533
1407	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1408		1535
1409	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1410		1537
1411	$self->alloc;	1538	$self->alloc;
1412		1539
1413	$self->pre_load;	1540	$self->pre_load;
1414
1415	$self->_load_objects ($self->{load_path}, 1)
1416	or return;
1417
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1419	if delete $self->{load_original};
1420
1421	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {
1424	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);
1426	}
1427	}
1428
1429	Coro::cede;
1430
1431	# now do the right thing for maps
1432	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;	1541	Coro::cede;
1439	$self->set_darkness_map;	1542
		1543	$self->_load_objects ($self->{load_path}, 1)
		1544	or return;
		1545
		1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1547	if delete $self->{load_original};
		1548
		1549	if (my $uniq = $self->uniq_path) {
		1550	utf8::encode $uniq;
		1551	if (aio_open $uniq, O_RDONLY, 0) {
		1552	$self->clear_unique_items;
		1553	$self->_load_objects ($uniq, 0);
		1554	}
		1555	}
		1556
		1557	Coro::cede;
		1558	# now do the right thing for maps
		1559	$self->link_multipart_objects;
1440	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	1561	unless $self->difficulty;
1442	Coro::cede;	1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1443	$self->activate;	1571	$self->activate;
		1572	}
		1573
		1574	$self->in_memory (cf::MAP_IN_MEMORY);
1444	}	1575	}
1445		1576
1446	$self->post_load;	1577	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	1578	}
1450		1579
1451	sub customise_for {	1580	sub customise_for {
1452	my ($self, $ob) = @_;	1581	my ($self, $ob) = @_;
1453		1582
…		…
1596	return if $self->players;	1725	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1598		1727
1599	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1600		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1601	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
1602		1741
1603	$self->in_memory (cf::MAP_SWAPPED);
1604	$self->clear;	1742	$self->clear;
1605		1743
1606	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1607		1745
1608	$self->unlink_save;	1746	$self->unlink_save;
…		…
1635	instantiated unique items. May block.	1773	instantiated unique items. May block.
1636		1774
1637	=cut	1775	=cut
1638		1776
1639	sub unique_maps() {	1777	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1778	my $files = aio_readdir $UNIQUEDIR
1641	or return;	1779	or return;
1642		1780
1643	my @paths;	1781	my @paths;
1644		1782
1645	for (@$files) {	1783	for (@$files) {
…		…
1764	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1765		1903
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		1905
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	1907	if $self->map && $self->map->{path} ne "{link}";
1770		1908
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1772	}	1910	}
1773		1911
1774	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
		1914
		1915	return unless $self->contr->active;
1776		1916
1777	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1778		1918
1779	unless ($map) {	1919	unless ($map) {
1780	# restore original map position	1920	# restore original map position
…		…
1798	$map->load;	1938	$map->load;
1799	$map->load_diag;	1939	$map->load_diag;
1800		1940
1801	return unless $self->contr->active;	1941	return unless $self->contr->active;
1802	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1804	}	1946	}
1805		1947
1806	cf::player->attach (
1807	on_logout => sub {
1808	my ($pl) = @_;
1809
1810	# abort map switching before logout
1811	if ($pl->ob->{_link_pos}) {
1812	cf::sync_job {
1813	$pl->ob->leave_link
1814	};
1815	}
1816	},
1817	on_login => sub {
1818	my ($pl) = @_;
1819
1820	# try to abort aborted map switching on player login :)
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837
1838	=item $player_object->goto ($path, $x, $y)	1948	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1839		1949
		1950	Moves the player to the given map-path and coordinates by first freezing
		1951	her, loading and preparing them map, calling the provided $check callback
		1952	that has to return the map if sucecssful, and then unfreezes the player on
		1953	the new (success) or old (failed) map position.
		1954
1840	=cut	1955	=cut
		1956
		1957	our $GOTOGEN;
1841		1958
1842	sub cf::object::player::goto {	1959	sub cf::object::player::goto {
1843	my ($self, $path, $x, $y) = @_;	1960	my ($self, $path, $x, $y, $check) = @_;
		1961
		1962	# do generation counting so two concurrent goto's will be executed in-order
		1963	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1844		1964
1845	$self->enter_link;	1965	$self->enter_link;
1846		1966
1847	(async {	1967	(async {
1848	my $map = eval {	1968	my $map = eval {
1849	my $map = cf::map::find $path;	1969	my $map = cf::map::find $path;
		1970
		1971	if ($map) {
1850	$map = $map->customise_for ($self) if $map;	1972	$map = $map->customise_for ($self);
		1973	$map = $check->($map) if $check && $map;
		1974	} else {
		1975	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1976	}
		1977
1851	$map	1978	$map
		1979	};
		1980
		1981	if ($@) {
		1982	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1983	LOG llevError | logBacktrace, Carp::longmess $@;
1852	} or	1984	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		1985
		1986	if ($gen == $self->{_goto_generation}) {
		1987	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	1988	$self->leave_link ($map, $x, $y);
		1989	}
1856	})->prio (1);	1990	})->prio (1);
1857	}	1991	}
1858		1992
1859	=item $player_object->enter_exit ($exit_object)	1993	=item $player_object->enter_exit ($exit_object)
1860		1994
…		…
1899		2033
1900	$rmp->{random_seed} ||= $exit->random_seed;	2034	$rmp->{random_seed} ||= $exit->random_seed;
1901		2035
1902	my $data = cf::to_json $rmp;	2036	my $data = cf::to_json $rmp;
1903	my $md5 = Digest::MD5::md5_hex $data;	2037	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2038	my $meta = "$RANDOMDIR/$md5.meta";
1905		2039
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2040	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2041	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2042	undef $fh;
1909	aio_rename "$meta~", $meta;	2043	aio_rename "$meta~", $meta;
…		…
1918		2052
1919	return unless $self->type == cf::PLAYER;	2053	return unless $self->type == cf::PLAYER;
1920		2054
1921	if ($exit->slaying eq "/!") {	2055	if ($exit->slaying eq "/!") {
1922	#TODO: this should de-fi-ni-te-ly not be a sync-job	2056	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2057	# the problem is that $exit might not survive long enough
		2058	# so it needs to be done right now, right here
1923	cf::sync_job { prepare_random_map $exit };	2059	cf::sync_job { prepare_random_map $exit };
1924	}	2060	}
1925		2061
1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2062	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927	my $hp = $exit->stats->hp;	2063	my $hp = $exit->stats->hp;
…		…
1935	$self->goto ($slaying, $hp, $sp);	2071	$self->goto ($slaying, $hp, $sp);
1936		2072
1937	1;	2073	1;
1938	}) {	2074	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2075	$self->message ("Something went wrong deep within the crossfire server. "
1940	. "I'll try to bring you back to the map you were before. "	2076	. "I'll try to bring you back to the map you were before. "
1941	. "Please report this to the dungeon master!",	2077	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2078	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2079
1944	warn "ERROR in enter_exit: $@";	2080	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2081	$self->leave_link;
1946	}	2082	}
1947	})->prio (1);	2083	})->prio (1);
…		…
1960		2096
1961	sub cf::client::send_drawinfo {	2097	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2098	my ($self, $text, $flags) = @_;
1963		2099
1964	utf8::encode $text;	2100	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2101	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2102	}
1967		2103
		2104	=item $client->ext_event ($type, %msg)
		2105
		2106	Sends an exti event to the client.
		2107
		2108	=cut
		2109
		2110	sub cf::client::ext_event($$%) {
		2111	my ($self, $type, %msg) = @_;
		2112
		2113	$msg{msgtype} = "event_$type";
		2114	$self->send_packet ("ext " . cf::to_json \%msg);
		2115	}
1968		2116
1969	=item $success = $client->query ($flags, "text", \&cb)	2117	=item $success = $client->query ($flags, "text", \&cb)
1970		2118
1971	Queues a query to the client, calling the given callback with	2119	Queues a query to the client, calling the given callback with
1972	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2120	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2001	# get handled first	2149	# get handled first
2002	my $queue = delete $ns->{query_queue}	2150	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	2151	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		2152
2005	(shift @$queue)->[1]->($msg);	2153	(shift @$queue)->[1]->($msg);
		2154	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		2155
2007	push @{ $ns->{query_queue} }, @$queue;	2156	push @{ $ns->{query_queue} }, @$queue;
2008		2157
2009	if (@{ $ns->{query_queue} } == @$queue) {	2158	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	2159	if (@$queue) {
…		…
2068		2217
2069	# here we export the classes and methods available to script code	2218	# here we export the classes and methods available to script code
2070		2219
2071	=pod	2220	=pod
2072		2221
2073	The following fucntions and emthods are available within a safe environment:	2222	The following functions and methods are available within a safe environment:
2074		2223
2075	cf::object contr pay_amount pay_player map	2224	cf::object contr pay_amount pay_player map
2076	cf::object::player player	2225	cf::object::player player
2077	cf::player peaceful	2226	cf::player peaceful
2078	cf::map trigger	2227	cf::map trigger
…		…
2163	#############################################################################	2312	#############################################################################
2164		2313
2165	=head2 EXTENSION DATABASE SUPPORT	2314	=head2 EXTENSION DATABASE SUPPORT
2166		2315
2167	Crossfire maintains a very simple database for extension use. It can	2316	Crossfire maintains a very simple database for extension use. It can
2168	currently store anything that can be serialised using Storable, which	2317	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2169	excludes objects.	2318	convert to/from binary).
2170		2319
2171	The parameter C<$family> should best start with the name of the extension	2320	The parameter C<$family> should best start with the name of the extension
2172	using it, it should be unique.	2321	using it, it should be unique.
2173		2322
2174	=over 4	2323	=over 4
2175		2324
2176	=item $hashref = cf::db_get $family
2177
2178	Return a hashref for use by the extension C<$family>, which can be
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181
2182	=item $value = cf::db_get $family => $key	2325	=item $value = cf::db_get $family => $key
2183		2326
2184	Returns a single value from the database	2327	Returns a single value from the database.
2185
2186	=item cf::db_put $family => $hashref
2187
2188	Stores the given family hashref into the database. Updates are delayed, if
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190		2328
2191	=item cf::db_put $family => $key => $value	2329	=item cf::db_put $family => $key => $value
2192		2330
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you	2331	Stores the given C<$value> in the family.
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203		2332
2204	=cut	2333	=cut
2205		2334
2206	our $DB;	2335	our $DB;
2207		2336
2208	{	2337	sub db_init {
2209	my $path = cf::localdir . "/database.pst";	2338	unless ($DB) {
		2339	$DB = BDB::db_create $DB_ENV;
2210		2340
2211	sub db_load() {	2341	cf::sync_job {
2212	$DB = stat $path ? Storable::retrieve $path : { };	2342	eval {
2213	}	2343	$DB->set_flags (BDB::CHKSUM);
2214		2344
2215	my $pid;	2345	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2216		2346	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2217	sub db_save() {	2347	cf::cleanup "db_open(db): $!" if $!;
2218	waitpid $pid, 0 if $pid;	2348	};
2219	if (0 == ($pid = fork)) {	2349	cf::cleanup "db_open(db): $@" if $@;
2220	$DB->{_meta}{version} = 1;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}	2350	};
2225	}	2351	}
		2352	}
2226		2353
2227	my $dirty;
2228
2229	sub db_sync() {
2230	db_save if $dirty;
2231	undef $dirty;
2232	}
2233
2234	my $idle = Event->idle (
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {	2354	sub db_get($$) {
2249	@_ >= 2	2355	my $key = "$_[0]/$_[1]";
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253		2356
		2357	cf::sync_job {
		2358	BDB::db_get $DB, undef, $key, my $data;
		2359
		2360	$! ? ()
		2361	: $data
		2362	}
		2363	}
		2364
2254	sub db_put($$;$) {	2365	sub db_put($$$) {
2255	if (@_ >= 3) {	2366	BDB::dbreq_pri 4;
2256	$DB->{$_[0]}{$_[1]} = $_[2];	2367	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2257	} else {	2368	}
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262		2369
2263	cf::global->attach (	2370	=item cf::cache $id => [$paths...], $processversion => $process
2264	prio => 10000,	2371
2265	on_cleanup => sub {	2372	Generic caching function that returns the value of the resource $id,
2266	db_sync;	2373	caching and regenerating as required.
		2374
		2375	This function can block.
		2376
		2377	=cut
		2378
		2379	sub cache {
		2380	my ($id, $src, $processversion, $process) = @_;
		2381
		2382	my $meta =
		2383	join "\x00",
		2384	$processversion,
		2385	map {
		2386	aio_stat $_
		2387	and Carp::croak "$_: $!";
		2388
		2389	($_, (stat _)[7,9])
		2390	} @$src;
		2391
		2392	my $dbmeta = db_get cache => "$id/meta";
		2393	if ($dbmeta ne $meta) {
		2394	# changed, we may need to process
		2395
		2396	my @data;
		2397	my $md5;
		2398
		2399	for (0 .. $#$src) {
		2400	0 <= aio_load $src->[$_], $data[$_]
		2401	or Carp::croak "$src->[$_]: $!";
2267	},	2402	}
2268	);	2403
		2404	# if processing is expensive, check
		2405	# checksum first
		2406	if (1) {
		2407	$md5 =
		2408	join "\x00",
		2409	$processversion,
		2410	map {
		2411	Coro::cede;
		2412	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2413	} 0.. $#$src;
		2414
		2415
		2416	my $dbmd5 = db_get cache => "$id/md5";
		2417	if ($dbmd5 eq $md5) {
		2418	db_put cache => "$id/meta", $meta;
		2419
		2420	return db_get cache => "$id/data";
		2421	}
		2422	}
		2423
		2424	my $t1 = Time::HiRes::time;
		2425	my $data = $process->(\@data);
		2426	my $t2 = Time::HiRes::time;
		2427
		2428	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2429
		2430	db_put cache => "$id/data", $data;
		2431	db_put cache => "$id/md5" , $md5;
		2432	db_put cache => "$id/meta", $meta;
		2433
		2434	return $data;
		2435	}
		2436
		2437	db_get cache => "$id/data"
		2438	}
		2439
		2440	=item fork_call { }, $args
		2441
		2442	Executes the given code block with the given arguments in a seperate
		2443	process, returning the results. Everything must be serialisable with
		2444	Coro::Storable. May, of course, block. Note that the executed sub may
		2445	never block itself or use any form of Event handling.
		2446
		2447	=cut
		2448
		2449	sub fork_call(&@) {
		2450	my ($cb, @args) = @_;
		2451
		2452	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2453	# or die "socketpair: $!";
		2454	pipe my $fh1, my $fh2
		2455	or die "pipe: $!";
		2456
		2457	if (my $pid = fork) {
		2458	close $fh2;
		2459
		2460	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2461	$res = Coro::Storable::thaw $res;
		2462
		2463	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2464
		2465	die $$res unless "ARRAY" eq ref $res;
		2466
		2467	return wantarray ? @$res : $res->[-1];
		2468	} else {
		2469	reset_signals;
		2470	local $SIG{__WARN__};
		2471	local $SIG{__DIE__};
		2472	eval {
		2473	close $fh1;
		2474
		2475	my @res = eval { $cb->(@args) };
		2476	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2477	};
		2478
		2479	warn $@ if $@;
		2480	_exit 0;
		2481	}
2269	}	2482	}
2270		2483
2271	#############################################################################	2484	#############################################################################
2272	# the server's main()	2485	# the server's init and main functions
		2486
		2487	sub load_facedata($) {
		2488	my ($path) = @_;
		2489
		2490	warn "loading facedata from $path\n";
		2491
		2492	my $facedata;
		2493	0 < aio_load $path, $facedata
		2494	or die "$path: $!";
		2495
		2496	$facedata = Coro::Storable::thaw $facedata;
		2497
		2498	$facedata->{version} == 2
		2499	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2500
		2501	{
		2502	my $faces = $facedata->{faceinfo};
		2503
		2504	while (my ($face, $info) = each %$faces) {
		2505	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2506	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2507	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2508	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2509	Coro::cede;
		2510	}
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	next unless $info->{smooth};
		2514	my $idx = cf::face::find $face
		2515	or next;
		2516	if (my $smooth = cf::face::find $info->{smooth}) {
		2517	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2518	} else {
		2519	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2520	}
		2521	Coro::cede;
		2522	}
		2523	}
		2524
		2525	{
		2526	my $anims = $facedata->{animinfo};
		2527
		2528	while (my ($anim, $info) = each %$anims) {
		2529	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2530	Coro::cede;
		2531	}
		2532
		2533	cf::anim::invalidate_all; # d'oh
		2534	}
		2535
		2536	1
		2537	}
		2538
		2539	sub reload_regions {
		2540	load_resource_file "$MAPDIR/regions"
		2541	or die "unable to load regions file\n";
		2542	}
		2543
		2544	sub reload_facedata {
		2545	load_facedata "$DATADIR/facedata"
		2546	or die "unable to load facedata\n";
		2547	}
		2548
		2549	sub reload_archetypes {
		2550	load_resource_file "$DATADIR/archetypes"
		2551	or die "unable to load archetypes\n";
		2552	}
		2553
		2554	sub reload_treasures {
		2555	load_resource_file "$DATADIR/treasures"
		2556	or die "unable to load treasurelists\n";
		2557	}
		2558
		2559	sub reload_resources {
		2560	warn "reloading resource files...\n";
		2561
		2562	reload_regions;
		2563	reload_facedata;
		2564	reload_archetypes;
		2565	reload_treasures;
		2566
		2567	warn "finished reloading resource files\n";
		2568	}
		2569
		2570	sub init {
		2571	reload_resources;
		2572	}
2273		2573
2274	sub cfg_load {	2574	sub cfg_load {
2275	open my $fh, "<:utf8", cf::confdir . "/config"	2575	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	2576	or return;
2277		2577
2278	local $/;	2578	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	2579	*CFG = YAML::Syck::Load <$fh>;
2280		2580
…		…
2300	Event::one_event;	2600	Event::one_event;
2301	})->prio (Coro::PRIO_MAX);	2601	})->prio (Coro::PRIO_MAX);
2302	};	2602	};
2303		2603
2304	cfg_load;	2604	cfg_load;
2305	db_load;	2605	db_init;
2306	load_extensions;	2606	load_extensions;
2307		2607
2308	$TICK_WATCHER->start;	2608	$TICK_WATCHER->start;
2309	Event::loop;	2609	Event::loop;
2310	}	2610	}
…		…
2349	my $map = $cf::MAP{$path} or next;	2649	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	2650	$map->valid or next;
2351	$map->save;	2651	$map->save;
2352	}	2652	}
2353	warn "end emergency map save\n";	2653	warn "end emergency map save\n";
		2654
		2655	warn "begin emergency database checkpoint\n";
		2656	BDB::db_env_txn_checkpoint $DB_ENV;
		2657	warn "end emergency database checkpoint\n";
2354	};	2658	};
2355		2659
2356	warn "leave emergency perl save\n";	2660	warn "leave emergency perl save\n";
2357	}	2661	}
2358		2662
		2663	sub post_cleanup {
		2664	my ($make_core) = @_;
		2665
		2666	warn Carp::longmess "post_cleanup backtrace"
		2667	if $make_core;
		2668	}
		2669
2359	sub reload() {	2670	sub do_reload_perl() {
2360	# can/must only be called in main	2671	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	2672	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	2673	warn "can only reload from main coroutine";
2363	return;	2674	return;
2364	}	2675	}
2365		2676
2366	warn "reloading...";	2677	warn "reloading...";
2367		2678
2368	warn "cancelling server ticker";	2679	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		2680
		2681	cf::sync_job {
		2682	cf::write_runtime; # external watchdog should not bark
2371	cf::emergency_save;	2683	cf::emergency_save;
		2684	cf::write_runtime; # external watchdog should not bark
2372		2685
2373	eval {	2686	warn "syncing database to disk";
		2687	BDB::db_env_txn_checkpoint $DB_ENV;
		2688
2374	# if anything goes wrong in here, we should simply crash as we already saved	2689	# if anything goes wrong in here, we should simply crash as we already saved
2375
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378		2690
2379	warn "cancelling all WF_AUTOCANCEL watchers";	2691	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {	2692	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;	2693	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}	2694	}
2383		2695
2384	warn "flushing outstanding aio requests";	2696	warn "flushing outstanding aio requests";
2385	for (;;) {	2697	for (;;) {
		2698	BDB::flush;
2386	IO::AIO::flush;	2699	IO::AIO::flush;
2387	Coro::cede;	2700	Coro::cede;
2388	last unless IO::AIO::nreqs;	2701	last unless IO::AIO::nreqs || BDB::nreqs;
2389	warn "iterate...";	2702	warn "iterate...";
2390	}	2703	}
		2704
		2705	++$RELOAD;
2391		2706
2392	warn "cancelling all extension coros";	2707	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;	2708	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();	2709	%EXT_CORO = ();
2395		2710
…		…
2435	Symbol::delete_package "safe::$_"	2750	Symbol::delete_package "safe::$_"
2436	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2751	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2437		2752
2438	warn "unloading cf.pm \"a bit\"";	2753	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	2754	delete $INC{"cf.pm"};
		2755	delete $INC{"cf/pod.pm"};
2440		2756
2441	# don't, removes xs symbols, too,	2757	# don't, removes xs symbols, too,
2442	# and global variables created in xs	2758	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	2759	#Symbol::delete_package __PACKAGE__;
2444		2760
…		…
2448	require cf;	2764	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2765	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450		2766
2451	warn "loading config and database again";	2767	warn "loading config and database again";
2452	cf::cfg_load;	2768	cf::cfg_load;
2453	cf::db_load;
2454		2769
2455	warn "loading extensions";	2770	warn "loading extensions";
2456	cf::load_extensions;	2771	cf::load_extensions;
2457		2772
2458	warn "reattaching attachments to objects/players";	2773	warn "reattaching attachments to objects/players";
2459	_global_reattach;	2774	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	2775	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	2776	reattach $_ for values %MAP;
		2777	warn "reattaching attachments to players";
		2778	reattach $_ for values %PLAYER;
2462		2779
2463	warn "restarting server ticker";	2780	warn "leaving sync_job";
2464		2781
2465	$TICK_WATCHER->start;	2782	1
2466	};	2783	} or do {
2467
2468	if ($@) {
2469	warn $@;	2784	warn $@;
2470	warn "error while reloading, exiting.";	2785	warn "error while reloading, exiting.";
2471	exit 1;	2786	exit 1;
2472	}	2787	};
2473		2788
2474	warn "reloaded";	2789	warn "reloaded";
2475	};	2790	};
2476		2791
2477	our $RELOAD_WATCHER; # used only during reload	2792	our $RELOAD_WATCHER; # used only during reload
2478		2793
		2794	sub reload_perl() {
		2795	# doing reload synchronously and two reloads happen back-to-back,
		2796	# coro crashes during coro_state_free->destroy here.
		2797
		2798	$RELOAD_WATCHER ||= Event->timer (
		2799	reentrant => 0,
		2800	after => 0,
		2801	data => WF_AUTOCANCEL,
		2802	cb => sub {
		2803	do_reload_perl;
		2804	undef $RELOAD_WATCHER;
		2805	},
		2806	);
		2807	}
		2808
2479	register_command "reload" => sub {	2809	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	2810	my ($who, $arg) = @_;
2481		2811
2482	if ($who->flag (FLAG_WIZ)) {	2812	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	2813	$who->message ("reloading server.");
2484		2814	async { reload_perl };
2485	# doing reload synchronously and two reloads happen back-to-back,
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);
2497	}	2815	}
2498	};	2816	};
2499		2817
2500	unshift @INC, $LIBDIR;	2818	unshift @INC, $LIBDIR;
2501		2819
2502	my $bug_warning = 0;	2820	my $bug_warning = 0;
2503		2821
		2822	our @WAIT_FOR_TICK;
		2823	our @WAIT_FOR_TICK_BEGIN;
		2824
		2825	sub wait_for_tick {
		2826	return unless $TICK_WATCHER->is_active;
		2827	return if $Coro::current == $Coro::main;
		2828
		2829	my $signal = new Coro::Signal;
		2830	push @WAIT_FOR_TICK, $signal;
		2831	$signal->wait;
		2832	}
		2833
		2834	sub wait_for_tick_begin {
		2835	return unless $TICK_WATCHER->is_active;
		2836	return if $Coro::current == $Coro::main;
		2837
		2838	my $signal = new Coro::Signal;
		2839	push @WAIT_FOR_TICK_BEGIN, $signal;
		2840	$signal->wait;
		2841	}
		2842
		2843	my $min = 1e6;#d#
		2844	my $avg = 10;
2504	$TICK_WATCHER = Event->timer (	2845	$TICK_WATCHER = Event->timer (
2505	reentrant => 0,	2846	reentrant => 0,
2506	parked => 1,	2847	parked => 1,
2507	prio => 0,	2848	prio => 0,
2508	at => $NEXT_TICK || $TICK,	2849	at => $NEXT_TICK || $TICK,
…		…
2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2853	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2513	unless ++$bug_warning > 10;	2854	unless ++$bug_warning > 10;
2514	return;	2855	return;
2515	}	2856	}
2516		2857
2517	$NOW = Event::time;	2858	$NOW = $tick_start = Event::time;
2518		2859
2519	cf::server_tick; # one server iteration	2860	cf::server_tick; # one server iteration
		2861
		2862	0 && sync_job {#d#
		2863	for(1..10) {
		2864	my $t = Event::time;
		2865	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2866	or die;
		2867
		2868	$map->width (50);
		2869	$map->height (50);
		2870	$map->alloc;
		2871	$map->_load_objects ("/tmp/x.map", 1);
		2872	my $t = Event::time - $t;
		2873
		2874	#next unless $t < 0.0013;#d#
		2875	if ($t < $min) {
		2876	$min = $t;
		2877	}
		2878	$avg = $avg * 0.99 + $t * 0.01;
		2879	}
		2880	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2881	exit 0;
		2882	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2883	};
		2884
2520	$RUNTIME += $TICK;	2885	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;	2886	$NEXT_TICK += $TICK;
2522		2887
2523	$WAIT_FOR_TICK->broadcast;	2888	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2889	$NEXT_RUNTIME_WRITE = $NOW + 10;
2525		2890	Coro::async_pool {
2526	Event::sweep;	2891	write_runtime
2527	Coro::cede_notself;	2892	or warn "ERROR: unable to write runtime file: $!";
		2893	};
2528		2894	}
		2895
2529	# my $AFTER = Event::time;	2896	# my $AFTER = Event::time;
2530	# warn $AFTER - $NOW;#d#	2897	# warn $AFTER - $NOW;#d#
2531		2898
		2899	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2900	$sig->send;
		2901	}
		2902	while (my $sig = shift @WAIT_FOR_TICK) {
		2903	$sig->send;
		2904	}
		2905
		2906	$NOW = Event::time;
		2907
2532	# if we are delayed by four ticks or more, skip them all	2908	# if we are delayed by four ticks or more, skip them all
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2909	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2534		2910
2535	$TICK_WATCHER->at ($NEXT_TICK);	2911	$TICK_WATCHER->at ($NEXT_TICK);
2536	$TICK_WATCHER->start;	2912	$TICK_WATCHER->start;
		2913
		2914	$LOAD = ($NOW - $tick_start) / $TICK;
		2915	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2916
		2917	_post_tick;
		2918
		2919
2537	},	2920	},
2538	);	2921	);
2539		2922
		2923	{
		2924	BDB::max_poll_time $TICK * 0.1;
		2925	$BDB_POLL_WATCHER = Event->io (
		2926	reentrant => 0,
		2927	fd => BDB::poll_fileno,
		2928	poll => 'r',
		2929	prio => 0,
		2930	data => WF_AUTOCANCEL,
		2931	cb => \&BDB::poll_cb,
		2932	);
		2933	BDB::min_parallel 8;
		2934
		2935	BDB::set_sync_prepare {
		2936	my $status;
		2937	my $current = $Coro::current;
		2938	(
		2939	sub {
		2940	$status = $!;
		2941	$current->ready; undef $current;
		2942	},
		2943	sub {
		2944	Coro::schedule while defined $current;
		2945	$! = $status;
		2946	},
		2947	)
		2948	};
		2949
		2950	unless ($DB_ENV) {
		2951	$DB_ENV = BDB::db_env_create;
		2952
		2953	cf::sync_job {
		2954	eval {
		2955	BDB::db_env_open
		2956	$DB_ENV,
		2957	$BDBDIR,
		2958	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2959	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2960	0666;
		2961
		2962	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2963
		2964	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2965	$DB_ENV->set_lk_detect;
		2966	};
		2967
		2968	cf::cleanup "db_env_open(db): $@" if $@;
		2969	};
		2970	}
		2971	}
		2972
		2973	{
		2974	IO::AIO::min_parallel 8;
		2975
		2976	undef $Coro::AIO::WATCHER;
2540	IO::AIO::max_poll_time $TICK * 0.1;	2977	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (	2978	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,	2979	reentrant => 0,
		2980	data => WF_AUTOCANCEL,
2545	fd => IO::AIO::poll_fileno,	2981	fd => IO::AIO::poll_fileno,
2546	poll => 'r',	2982	poll => 'r',
2547	prio => 6,	2983	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,	2984	cb => \&IO::AIO::poll_cb,
2550	);	2985	);
		2986	}
2551		2987
2552	$WRITE_RUNTIME_WATCHER = Event->timer (	2988	my $_log_backtrace;
2553	reentrant => 0,	2989
2554	data => WF_AUTOCANCEL,	2990	sub _log_backtrace {
2555	after => 1,	2991	my ($msg, @addr) = @_;
2556	interval => 10,	2992
2557	prio => 6, # keep it lowest so it acts like a watchdog	2993	$msg =~ s/\n//;
2558	cb => Coro::unblock_sub {	2994
2559	write_runtime	2995	# limit the # of concurrent backtraces
2560	or warn "ERROR: unable to write runtime file: $!";	2996	if ($_log_backtrace < 2) {
		2997	++$_log_backtrace;
		2998	async {
		2999	my @bt = fork_call {
		3000	@addr = map { sprintf "%x", $_ } @addr;
		3001	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3002	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3003	or die "addr2line: $!";
		3004
		3005	my @funcs;
		3006	my @res = <$fh>;
		3007	chomp for @res;
		3008	while (@res) {
		3009	my ($func, $line) = splice @res, 0, 2, ();
		3010	push @funcs, "[$func] $line";
		3011	}
		3012
		3013	@funcs
		3014	};
		3015
		3016	LOG llevInfo, "[ABT] $msg\n";
		3017	LOG llevInfo, "[ABT] $_\n" for @bt;
		3018	--$_log_backtrace;
		3019	};
		3020	} else {
		3021	LOG llevInfo, "[ABT] $msg\n";
		3022	LOG llevInfo, "[ABT] [suppressed]\n";
2561	},	3023	}
2562	);	3024	}
		3025
		3026	# load additional modules
		3027	use cf::pod;
2563		3028
2564	END { cf::emergency_save }	3029	END { cf::emergency_save }
2565		3030
2566	1	3031	1
2567		3032

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