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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.102 by root, Wed Dec 27 15:20:54 2006 UTC vs.
Revision 1.278 by root, Mon Jun 11 21:38:14 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;	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;
		22	use Coro::AIO;
		23	use Coro::Storable;
18		24
19	use IO::AIO 2.3;	25	use BDB ();
		26	use Data::Dumper;
		27	use Digest::MD5;
		28	use Fcntl;
20	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
21	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
22		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
23	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
24		41
25	# 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?
26	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
27		44
28	$Coro::main->prio (Coro::PRIO_MIN);	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		46
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		48
32	our %COMMAND = ();	49	our %COMMAND = ();
33	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
35		56
		57	our $RELOAD; # number of reloads so far
36	our @EVENT;	58	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		59
39	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(!)
40	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	76	our $NEXT_TICK;
		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;
42		82
43	our %CFG;	83	our %CFG;
44		84
45	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
		86	our $RUNTIME;
		87
		88	our %PLAYER; # all users
		89	our %MAP; # all maps
		90	our $LINK_MAP; # the special {link} map, which is always available
		91
		92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		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 $tick_start; # for load detecting purposes
		98
		99	binmode STDOUT;
		100	binmode STDERR;
		101
		102	# read virtual server time, if available
		103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		104	open my $fh, "<", "$LOCALDIR/runtime"
		105	or die "unable to read runtime file: $!";
		106	$RUNTIME = <$fh> + 0.;
		107	}
		108
		109	mkdir $_
		110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		111
		112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
46		115
47	#############################################################################	116	#############################################################################
48		117
49	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
50		119
…		…
52		121
53	=item $cf::UPTIME	122	=item $cf::UPTIME
54		123
55	The timestamp of the server start (so not actually an uptime).	124	The timestamp of the server start (so not actually an uptime).
56		125
57	=item $cf::LIBDIR	126	=item $cf::RUNTIME
58		127
59	The perl library directory, where extensions and cf-specific modules can	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	129	every server tick.
		130
		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
		134
		135	Various directories - "/etc", read-only install directory, perl-library
		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.
		139
		140	=item $cf::NOW
		141
		142	The time of the last (current) server tick.
61		143
62	=item $cf::TICK	144	=item $cf::TICK
63		145
64	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.
65		157
66	=item %cf::CFG	158	=item %cf::CFG
67		159
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
70		168
71	=back	169	=back
72		170
73	=cut	171	=cut
74		172
75	BEGIN {	173	BEGIN {
76	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	175	my $msg = join "", @_;
		176
78	$msg .= "\n"	177	$msg .= "\n"
79	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
80		179
81	print STDERR "cfperl: $msg";	180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
82	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
83	};	184	};
84	}	185	}
85		186
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@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';
91	@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)
92		194
93	# 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
94	# within the Safe compartment.	196	# within the Safe compartment.
95	for my $pkg (qw(	197	for my $pkg (qw(
96	cf::global cf::attachable	198	cf::global cf::attachable
…		…
105		207
106	$Event::DIED = sub {	208	$Event::DIED = sub {
107	warn "error in event callback: @_";	209	warn "error in event callback: @_";
108	};	210	};
109		211
110	my %ext_pkg;
111	my @exts;
112	my @hook;
113
114	=head2 UTILITY FUNCTIONS	212	=head2 UTILITY FUNCTIONS
115		213
116	=over 4	214	=over 4
117		215
118	=cut	216	=item dumpval $ref
119		217
		218	=cut
		219
		220	sub dumpval {
		221	eval {
		222	local $SIG{__DIE__};
		223	my $d;
		224	if (1) {
		225	$d = new Data::Dumper([$_[0]], ["*var"]);
		226	$d->Terse(1);
		227	$d->Indent(2);
		228	$d->Quotekeys(0);
		229	$d->Useqq(1);
		230	#$d->Bless(...);
		231	$d->Seen($_[1]) if @_ > 1;
		232	$d = $d->Dump();
		233	}
		234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		235	$d
		236	} || "[unable to dump $_[0]: '$@']";
		237	}
		238
120	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
121		240
122	=item $ref = cf::from_json $json	241	=item $ref = cf::from_json $json
123		242
124	Converts a JSON string into the corresponding perl data structure.	243	Converts a JSON string into the corresponding perl data structure.
125		244
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	245	=item $json = cf::to_json $ref
134		246
135	Converts a perl data structure into its JSON representation.	247	Converts a perl data structure into its JSON representation.
136		248
137	=cut	249	=item cf::lock_wait $string
138		250
139	sub to_json($) {	251	Wait until the given lock is available. See cf::lock_acquire.
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	252
141	JSON::Syck::Dump $_[0]	253	=item my $lock = cf::lock_acquire $string
		254
		255	Wait until the given lock is available and then acquires it and returns
		256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		257	for example when the coroutine gets canceled), the lock is automatically
		258	returned.
		259
		260	Lock names should begin with a unique identifier (for example, cf::map::find
		261	uses map_find and cf::map::load uses map_load).
		262
		263	=item $locked = cf::lock_active $string
		264
		265	Return true if the lock is currently active, i.e. somebody has locked it.
		266
		267	=cut
		268
		269	our %LOCK;
		270
		271	sub lock_wait($) {
		272	my ($key) = @_;
		273
		274	# wait for lock, if any
		275	while ($LOCK{$key}) {
		276	push @{ $LOCK{$key} }, $Coro::current;
		277	Coro::schedule;
		278	}
		279	}
		280
		281	sub lock_acquire($) {
		282	my ($key) = @_;
		283
		284	# wait, to be sure we are not locked
		285	lock_wait $key;
		286
		287	$LOCK{$key} = [];
		288
		289	Coro::guard {
		290	# wake up all waiters, to be on the safe side
		291	$_->ready for @{ delete $LOCK{$key} };
		292	}
		293	}
		294
		295	sub lock_active($) {
		296	my ($key) = @_;
		297
		298	! ! $LOCK{$key}
		299	}
		300
		301	sub freeze_mainloop {
		302	return unless $TICK_WATCHER->is_active;
		303
		304	my $guard = Coro::guard {
		305	$TICK_WATCHER->start;
		306	};
		307	$TICK_WATCHER->stop;
		308	$guard
		309	}
		310
		311	=item cf::async { BLOCK }
		312
		313	Currently the same as Coro::async_pool, meaning you cannot use
		314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		315	thing you are allowed to do is call C<prio> on it.
		316
		317	=cut
		318
		319	BEGIN { *async = \&Coro::async_pool }
		320
		321	=item cf::sync_job { BLOCK }
		322
		323	The design of crossfire+ requires that the main coro ($Coro::main) is
		324	always able to handle events or runnable, as crossfire+ is only partly
		325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		326
		327	If it must be done, put the blocking parts into C<sync_job>. This will run
		328	the given BLOCK in another coroutine while waiting for the result. The
		329	server will be frozen during this time, so the block should either finish
		330	fast or be very important.
		331
		332	=cut
		333
		334	sub sync_job(&) {
		335	my ($job) = @_;
		336
		337	if ($Coro::current == $Coro::main) {
		338	my $time = Event::time;
		339
		340	# this is the main coro, too bad, we have to block
		341	# till the operation succeeds, freezing the server :/
		342
		343	# TODO: use suspend/resume instead
		344	# (but this is cancel-safe)
		345	my $freeze_guard = freeze_mainloop;
		346
		347	my $busy = 1;
		348	my @res;
		349
		350	(async {
		351	@res = eval { $job->() };
		352	warn $@ if $@;
		353	undef $busy;
		354	})->prio (Coro::PRIO_MAX);
		355
		356	while ($busy) {
		357	Coro::cede or Event::one_event;
		358	}
		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
		367	wantarray ? @res : $res[0]
		368	} else {
		369	# we are in another coroutine, how wonderful, everything just works
		370
		371	$job->()
		372	}
		373	}
		374
		375	=item $coro = cf::async_ext { BLOCK }
		376
		377	Like async, but this coro is automatically being canceled when the
		378	extension calling this is being unloaded.
		379
		380	=cut
		381
		382	sub async_ext(&) {
		383	my $cb = shift;
		384
		385	my $coro = &Coro::async ($cb);
		386
		387	$coro->on_destroy (sub {
		388	delete $EXT_CORO{$coro+0};
		389	});
		390	$EXT_CORO{$coro+0} = $coro;
		391
		392	$coro
		393	}
		394
		395	sub write_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";
		404
		405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		406	or return;
		407
		408	my $value = $cf::RUNTIME + 90 + 10;
		409	# 10 is the runtime save interval, for a monotonic clock
		410	# 60 allows for the watchdog to kill the server.
		411
		412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		413	and return;
		414
		415	# always fsync - this file is important
		416	aio_fsync $fh
		417	and return;
		418
		419	# touch it again to show we are up-to-date
		420	aio_utime $fh, undef, undef;
		421
		422	close $fh
		423	or return;
		424
		425	aio_rename "$runtime~", $runtime
		426	and return;
		427
		428	warn "runtime file written.\n";
		429
		430	1
		431	}
		432
		433	=item cf::datalog type => key => value, ...
		434
		435	Log a datalog packet of the given type with the given key-value pairs.
		436
		437	=cut
		438
		439	sub datalog($@) {
		440	my ($type, %kv) = @_;
		441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	442	}
143		443
144	=back	444	=back
145		445
146	=cut	446	=cut
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	577	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	578	our @CB_MAP = ();
279		579
280	my %attachment;	580	my %attachment;
281		581
		582	sub cf::attachable::thawer_merge {
		583	# simply override everything except _meta
		584	local $_[0]{_meta};
		585	%{$_[0]} = %{$_[1]};
		586	}
		587
282	sub _attach_cb($$$$) {	588	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	589	my ($registry, $event, $prio, $cb) = @_;
284		590
285	use sort 'stable';	591	use sort 'stable';
286		592
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	626	$registry = $CB_TYPE[$object_type] ||= [];
321		627
322	} elsif ($type eq "subtype") {	628	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	629	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	630	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	631	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		632
327	} elsif ($type eq "package") {	633	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	634	my $pkg = shift @arg;
329		635
330	while (my ($name, $id) = each %cb_id) {	636	while (my ($name, $id) = each %cb_id) {
…		…
371	if (ref $_[0]) {	677	if (ref $_[0]) {
372	_object_attach @_;	678	_object_attach @_;
373	} else {	679	} else {
374	_attach shift->_attach_registry, @_;	680	_attach shift->_attach_registry, @_;
375	}	681	}
		682	_recalc_want;
376	};	683	};
377		684
378	# all those should be optimised	685	# all those should be optimised
379	sub cf::attachable::detach {	686	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	687	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	690	delete $obj->{_attachment}{$name};
384	reattach ($obj);	691	reattach ($obj);
385	} else {	692	} else {
386	Carp::croak "cannot, currently, detach class attachments";	693	Carp::croak "cannot, currently, detach class attachments";
387	}	694	}
		695	_recalc_want;
388	};	696	};
389		697
390	sub cf::attachable::attached {	698	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	699	my ($obj, $name) = @_;
392		700
…		…
457	# object support	765	# object support
458		766
459	sub reattach {	767	sub reattach {
460	# basically do the same as instantiate, without calling instantiate	768	# basically do the same as instantiate, without calling instantiate
461	my ($obj) = @_;	769	my ($obj) = @_;
		770
		771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
462		772
463	my $registry = $obj->registry;	773	my $registry = $obj->registry;
464		774
465	@$registry = ();	775	@$registry = ();
466		776
…		…
505	);	815	);
506		816
507	sub object_freezer_save {	817	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;	818	my ($filename, $rdata, $objs) = @_;
509		819
		820	sync_job {
510	if (length $$rdata) {	821	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",	822	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;	823	$filename, length $$rdata, scalar @$objs;
513		824
514	if (open my $fh, ">:raw", "$filename~") {	825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;	826	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		828	aio_fsync $fh if $cf::USE_FSYNC;
522	close $fh;	829	close $fh;
		830
		831	if (@$objs) {
		832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		833	chmod SAVE_MODE, $fh;
		834	my $data = Storable::nfreeze { version => 1, objs => $objs };
		835	aio_write $fh, 0, (length $data), $data, 0;
		836	aio_fsync $fh if $cf::USE_FSYNC;
		837	close $fh;
523	rename "$filename.pst~", "$filename.pst";	838	aio_rename "$filename.pst~", "$filename.pst";
		839	}
		840	} else {
		841	aio_unlink "$filename.pst";
		842	}
		843
		844	aio_rename "$filename~", $filename;
524	} else {	845	} else {
525	unlink "$filename.pst";	846	warn "FATAL: $filename~: $!\n";
526	}	847	}
527
528	rename "$filename~", $filename;
529	} else {	848	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;	849	aio_unlink $filename;
534	unlink "$filename.pst";	850	aio_unlink "$filename.pst";
		851	}
535	}	852	}
536	}	853	}
537		854
538	sub object_freezer_as_string {	855	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;	856	my ($rdata, $objs) = @_;
…		…
544	}	861	}
545		862
546	sub object_thawer_load {	863	sub object_thawer_load {
547	my ($filename) = @_;	864	my ($filename) = @_;
548		865
549	local $/;	866	my ($data, $av);
550		867
551	my $av;	868	(aio_load $filename, $data) >= 0
		869	or return;
552		870
553	#TODO: use sysread etc.	871	unless (aio_stat "$filename.pst") {
554	if (open my $data, "<:raw:perlio", $filename) {	872	(aio_load "$filename.pst", $av) >= 0
555	$data = <$data>;	873	or return;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };	874	$av = eval { (Storable::thaw $av)->{objs} };
558	}	875	}
		876
		877	warn sprintf "loading %s (%d)\n",
		878	$filename, length $data, scalar @{$av || []};
559	return ($data, $av);	879	return ($data, $av);
560	}
561
562	()
563	}	880	}
564		881
565	#############################################################################	882	#############################################################################
566	# command handling &c	883	# command handling &c
567		884
…		…
591	=cut	908	=cut
592		909
593	sub register_extcmd {	910	sub register_extcmd {
594	my ($name, $cb) = @_;	911	my ($name, $cb) = @_;
595		912
596	my $caller = caller;
597	#warn "registering extcmd '$name' to '$caller'";
598
599	$EXTCMD{$name} = [$cb, $caller];	913	$EXTCMD{$name} = $cb;
600	}	914	}
601		915
602	cf::player->attach (	916	cf::player->attach (
603	on_command => sub {	917	on_command => sub {
604	my ($pl, $name, $params) = @_;	918	my ($pl, $name, $params) = @_;
…		…
617		931
618	my $msg = eval { from_json $buf };	932	my $msg = eval { from_json $buf };
619		933
620	if (ref $msg) {	934	if (ref $msg) {
621	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
622	if (my %reply = $cb->[0]->($pl, $msg)) {	936	if (my %reply = $cb->($pl, $msg)) {
623	$pl->ext_reply ($msg->{msgid}, %reply);	937	$pl->ext_reply ($msg->{msgid}, %reply);
624	}	938	}
625	}	939	}
626	} else {	940	} else {
627	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
629		943
630	cf::override;	944	cf::override;
631	},	945	},
632	);	946	);
633		947
		948	sub load_extensions {
		949	cf::sync_job {
		950	my %todo;
		951
		952	for my $path (<$LIBDIR/*.ext>) {
		953	next unless -r $path;
		954
		955	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		956	my $base = $1;
		957	my $pkg = $1;
		958	$pkg =~ s/[^[:word:]]/_/g;
		959	$pkg = "ext::$pkg";
		960
		961	open my $fh, "<:utf8", $path
		962	or die "$path: $!";
		963
		964	my $source = do { local $/; <$fh> };
		965
		966	my %ext = (
		967	path => $path,
		968	base => $base,
		969	pkg => $pkg,
		970	);
		971
		972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }
		973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;
		974
		975	$ext{source} =
		976	"package $pkg; use strict; use utf8;\n"
		977	. "#line 1 \"$path\"\n{\n"
		978	. $source
		979	. "\n};\n1";
		980
		981	$todo{$base} = \%ext;
		982	}
		983
		984	my %done;
		985	while (%todo) {
		986	my $progress;
		987
		988	while (my ($k, $v) = each %todo) {
		989	for (split /,\s*/, $ext{meta}{depends}) {
		990	goto skip
		991	unless exists $done{$_};
		992	}
		993
		994	warn "... loading '$k' into '$v->{pkg}'\n";
		995
		996	unless (eval $v->{source}) {
		997	my $msg = $@ ? "$v->{path}: $@\n"
		998	: "extension disabled.\n";
		999
		1000	if (exists $v->{meta}{mandatory}) {
		1001	warn $msg;
		1002	warn "mandatory extension failed to load, exiting.\n";
		1003	exit 1;
		1004	}
		1005
		1006	die $msg;
		1007	}
		1008
		1009	$done{$k} = delete $todo{$k};
		1010	push @EXTS, $v->{pkg};
		1011	}
		1012
		1013	skip:
		1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1015	unless $progress;
		1016	}
		1017	};
		1018	}
		1019
		1020	#############################################################################
		1021
		1022	=head2 CORE EXTENSIONS
		1023
		1024	Functions and methods that extend core crossfire objects.
		1025
		1026	=cut
		1027
		1028	package cf::player;
		1029
		1030	use Coro::AIO;
		1031
		1032	=head3 cf::player
		1033
		1034	=over 4
		1035
		1036	=item cf::player::find $login
		1037
		1038	Returns the given player object, loading it if necessary (might block).
		1039
		1040	=cut
		1041
		1042	sub playerdir($) {
		1043	"$PLAYERDIR/"
		1044	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1045	}
		1046
		1047	sub path($) {
		1048	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1049
		1050	(playerdir $login) . "/playerdata"
		1051	}
		1052
		1053	sub find_active($) {
		1054	$cf::PLAYER{$_[0]}
		1055	and $cf::PLAYER{$_[0]}->active
		1056	and $cf::PLAYER{$_[0]}
		1057	}
		1058
		1059	sub exists($) {
		1060	my ($login) = @_;
		1061
		1062	$cf::PLAYER{$login}
		1063	or cf::sync_job { !aio_stat path $login }
		1064	}
		1065
		1066	sub find($) {
		1067	return $cf::PLAYER{$_[0]} || do {
		1068	my $login = $_[0];
		1069
		1070	my $guard = cf::lock_acquire "user_find:$login";
		1071
		1072	$cf::PLAYER{$_[0]} || do {
		1073	# rename old playerfiles to new ones
		1074	#TODO: remove when no longer required
		1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1078	aio_unlink +(playerdir $login) . "/$login.pl";
		1079
		1080	my $pl = load_pl path $login
		1081	or return;
		1082	$cf::PLAYER{$login} = $pl
		1083	}
		1084	}
		1085	}
		1086
		1087	sub save($) {
		1088	my ($pl) = @_;
		1089
		1090	return if $pl->{deny_save};
		1091
		1092	my $path = path $pl;
		1093	my $guard = cf::lock_acquire "user_save:$path";
		1094
		1095	return if $pl->{deny_save};
		1096
		1097	aio_mkdir playerdir $pl, 0770;
		1098	$pl->{last_save} = $cf::RUNTIME;
		1099
		1100	$pl->save_pl ($path);
		1101	Coro::cede;
		1102	}
		1103
		1104	sub new($) {
		1105	my ($login) = @_;
		1106
		1107	my $self = create;
		1108
		1109	$self->ob->name ($login);
		1110	$self->{deny_save} = 1;
		1111
		1112	$cf::PLAYER{$login} = $self;
		1113
		1114	$self
		1115	}
		1116
		1117	=item $pl->quit_character
		1118
		1119	Nukes the player without looking back. If logged in, the connection will
		1120	be destroyed. May block for a long time.
		1121
		1122	=cut
		1123
		1124	sub quit_character {
		1125	my ($pl) = @_;
		1126
		1127	my $name = $pl->ob->name;
		1128
		1129	$pl->{deny_save} = 1;
		1130	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1131
		1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1133	$pl->deactivate;
		1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1135	$pl->ns->destroy if $pl->ns;
		1136
		1137	my $path = playerdir $pl;
		1138	my $temp = "$path~$cf::RUNTIME~deleting~";
		1139	aio_rename $path, $temp;
		1140	delete $cf::PLAYER{$pl->ob->name};
		1141	$pl->destroy;
		1142
		1143	my $prefix = qr<^~\Q$name\E/>;
		1144
		1145	# nuke player maps
		1146	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1147
		1148	IO::AIO::aio_rmtree $temp;
		1149	}
		1150
		1151	=item $pl->kick
		1152
		1153	Kicks a player out of the game. This destroys the connection.
		1154
		1155	=cut
		1156
		1157	sub kick {
		1158	my ($pl, $kicker) = @_;
		1159
		1160	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1161	$pl->killer ("kicked");
		1162	$pl->ns->destroy;
		1163	}
		1164
		1165	=item cf::player::list_logins
		1166
		1167	Returns am arrayref of all valid playernames in the system, can take a
		1168	while and may block, so not sync_job-capable, ever.
		1169
		1170	=cut
		1171
		1172	sub list_logins {
		1173	my $dirs = aio_readdir $PLAYERDIR
		1174	or return [];
		1175
		1176	my @logins;
		1177
		1178	for my $login (@$dirs) {
		1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1180	aio_read $fh, 0, 512, my $buf, 0 or next;
		1181	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1182
		1183	utf8::decode $login;
		1184	push @logins, $login;
		1185	}
		1186
		1187	\@logins
		1188	}
		1189
		1190	=item $player->maps
		1191
		1192	Returns an arrayref of map paths that are private for this
		1193	player. May block.
		1194
		1195	=cut
		1196
		1197	sub maps($) {
		1198	my ($pl) = @_;
		1199
		1200	$pl = ref $pl ? $pl->ob->name : $pl;
		1201
		1202	my $files = aio_readdir playerdir $pl
		1203	or return;
		1204
		1205	my @paths;
		1206
		1207	for (@$files) {
		1208	utf8::decode $_;
		1209	next if /\.(?:pl|pst)$/;
		1210	next unless /^$PATH_SEP/o;
		1211
		1212	push @paths, cf::map::normalise "~$pl/$_";
		1213	}
		1214
		1215	\@paths
		1216	}
		1217
		1218	=item $player->ext_reply ($msgid, %msg)
		1219
		1220	Sends an ext reply to the player.
		1221
		1222	=cut
		1223
		1224	sub ext_reply($$%) {
		1225	my ($self, $id, %msg) = @_;
		1226
		1227	$msg{msgid} = $id;
		1228
		1229	$self->send ("ext " . cf::to_json \%msg);
		1230	}
		1231
		1232	=item $player->ext_event ($type, %msg)
		1233
		1234	Sends an ext event to the client.
		1235
		1236	=cut
		1237
		1238	sub ext_event($$%) {
		1239	my ($self, $type, %msg) = @_;
		1240
		1241	$self->ns->ext_event ($type, %msg);
		1242	}
		1243
		1244	=head3 cf::region
		1245
		1246	=over 4
		1247
		1248	=cut
		1249
		1250	package cf::region;
		1251
		1252	=item cf::region::find_by_path $path
		1253
		1254	Tries to decuce the probable region for a map knowing only its path.
		1255
		1256	=cut
		1257
		1258	sub find_by_path($) {
		1259	my ($path) = @_;
		1260
		1261	my ($match, $specificity);
		1262
		1263	for my $region (list) {
		1264	if ($region->match && $path =~ $region->match) {
		1265	($match, $specificity) = ($region, $region->specificity)
		1266	if $region->specificity > $specificity;
		1267	}
		1268	}
		1269
		1270	$match
		1271	}
		1272
		1273	=back
		1274
		1275	=head3 cf::map
		1276
		1277	=over 4
		1278
		1279	=cut
		1280
		1281	package cf::map;
		1282
		1283	use Fcntl;
		1284	use Coro::AIO;
		1285
		1286	use overload
		1287	'""' => \&as_string,
		1288	fallback => 1;
		1289
		1290	our $MAX_RESET = 3600;
		1291	our $DEFAULT_RESET = 3000;
		1292
		1293	sub generate_random_map {
		1294	my ($self, $rmp) = @_;
		1295	# mit "rum" bekleckern, nicht
		1296	$self->_create_random_map (
		1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1300	$rmp->{exit_on_final_map},
		1301	$rmp->{xsize}, $rmp->{ysize},
		1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1307	(cf::region::find $rmp->{region}), $rmp->{custom}
		1308	)
		1309	}
		1310
		1311	=item cf::map->register ($regex, $prio)
		1312
		1313	Register a handler for the map path matching the given regex at the
		1314	givne priority (higher is better, built-in handlers have priority 0, the
		1315	default).
		1316
		1317	=cut
		1318
634	sub register {	1319	sub register {
		1320	my (undef, $regex, $prio) = @_;
		1321	my $pkg = caller;
		1322
		1323	no strict;
		1324	push @{"$pkg\::ISA"}, __PACKAGE__;
		1325
		1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1327	}
		1328
		1329	# also paths starting with '/'
		1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1331
		1332	sub thawer_merge {
635	my ($base, $pkg) = @_;	1333	my ($self, $merge) = @_;
636		1334
637	#TODO	1335	# we have to keep some variables in memory intact
638	}	1336	local $self->{path};
		1337	local $self->{load_path};
639		1338
640	sub load_extension {	1339	$self->SUPER::thawer_merge ($merge);
		1340	}
		1341
		1342	sub normalise {
641	my ($path) = @_;	1343	my ($path, $base) = @_;
642		1344
643	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1345	$path = "$path"; # make sure its a string
644	my $base = $1;
645	my $pkg = $1;
646	$pkg =~ s/[^[:word:]]/_/g;
647	$pkg = "ext::$pkg";
648		1346
649	warn "loading '$path' into '$pkg'\n";	1347	$path =~ s/\.map$//;
650		1348
651	open my $fh, "<:utf8", $path	1349	# map plan:
652	or die "$path: $!";	1350	#
		1351	# /! non-realised random map exit (special hack!)
		1352	# {... are special paths that are not being touched
		1353	# ?xxx/... are special absolute paths
		1354	# ?random/... random maps
		1355	# /... normal maps
		1356	# ~user/... per-player map of a specific user
653		1357
654	my $source =	1358	$path =~ s/$PATH_SEP/\//go;
655	"package $pkg; use strict; use utf8;\n"
656	. "#line 1 \"$path\"\n{\n"
657	. (do { local $/; <$fh> })
658	. "\n};\n1";
659		1359
660	eval $source	1360	# treat it as relative path if it starts with
661	or die $@ ? "$path: $@\n"	1361	# something that looks reasonable
662	: "extension disabled.\n";	1362	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1363	$base or Carp::carp "normalise called with relative path and no base: '$path'";
663		1364
664	push @exts, $pkg;	1365	$base =~ s{[^/]+/?$}{};
665	$ext_pkg{$base} = $pkg;	1366	$path = "$base/$path";
666
667	# no strict 'refs';
668	# @{"$pkg\::ISA"} = ext::;
669
670	register $base, $pkg;
671	}
672
673	sub unload_extension {
674	my ($pkg) = @_;
675
676	warn "removing extension $pkg\n";
677
678	# remove hooks
679	#TODO
680	# for my $idx (0 .. $#PLUGIN_EVENT) {
681	# delete $hook[$idx]{$pkg};
682	# }	1367	}
683		1368
684	# remove commands	1369	for ($path) {
685	for my $name (keys %COMMAND) {	1370	redo if s{//}{/};
686	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1371	redo if s{/\.?/}{/};
		1372	redo if s{/[^/]+/\.\./}{/};
		1373	}
687		1374
688	if (@cb) {	1375	$path
689	$COMMAND{$name} = \@cb;	1376	}
		1377
		1378	sub new_from_path {
		1379	my (undef, $path, $base) = @_;
		1380
		1381	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1382
		1383	$path = normalise $path, $base;
		1384
		1385	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1386	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1387	my $self = bless cf::map::new, $pkg;
		1388	$self->{path} = $path; $self->path ($path);
		1389	$self->init; # pass $1 etc.
		1390	return $self;
		1391	}
		1392	}
		1393
		1394	Carp::carp "unable to resolve path '$path' (base '$base').";
		1395	()
		1396	}
		1397
		1398	sub init {
		1399	my ($self) = @_;
		1400
		1401	$self
		1402	}
		1403
		1404	sub as_string {
		1405	my ($self) = @_;
		1406
		1407	"$self->{path}"
		1408	}
		1409
		1410	# the displayed name, this is a one way mapping
		1411	sub visible_name {
		1412	&as_string
		1413	}
		1414
		1415	# the original (read-only) location
		1416	sub load_path {
		1417	my ($self) = @_;
		1418
		1419	"$MAPDIR/$self->{path}.map"
		1420	}
		1421
		1422	# the temporary/swap location
		1423	sub save_path {
		1424	my ($self) = @_;
		1425
		1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1427	"$TMPDIR/$path.map"
		1428	}
		1429
		1430	# the unique path, undef == no special unique path
		1431	sub uniq_path {
		1432	my ($self) = @_;
		1433
		1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1435	"$UNIQUEDIR/$path"
		1436	}
		1437
		1438	# and all this just because we cannot iterate over
		1439	# all maps in C++...
		1440	sub change_all_map_light {
		1441	my ($change) = @_;
		1442
		1443	$_->change_map_light ($change)
		1444	for grep $_->outdoor, values %cf::MAP;
		1445	}
		1446
		1447	sub decay_objects {
		1448	my ($self) = @_;
		1449
		1450	return if $self->{deny_reset};
		1451
		1452	$self->do_decay_objects;
		1453	}
		1454
		1455	sub unlink_save {
		1456	my ($self) = @_;
		1457
		1458	utf8::encode (my $save = $self->save_path);
		1459	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1460	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1461	}
		1462
		1463	sub load_header_from($) {
		1464	my ($self, $path) = @_;
		1465
		1466	utf8::encode $path;
		1467	#aio_open $path, O_RDONLY, 0
		1468	# or return;
		1469
		1470	$self->_load_header ($path)
		1471	or return;
		1472
		1473	$self->{load_path} = $path;
		1474
		1475	1
		1476	}
		1477
		1478	sub load_header_orig {
		1479	my ($self) = @_;
		1480
		1481	$self->load_header_from ($self->load_path)
		1482	}
		1483
		1484	sub load_header_temp {
		1485	my ($self) = @_;
		1486
		1487	$self->load_header_from ($self->save_path)
		1488	}
		1489
		1490	sub prepare_temp {
		1491	my ($self) = @_;
		1492
		1493	$self->last_access ((delete $self->{last_access})
		1494	|| $cf::RUNTIME); #d#
		1495	# safety
		1496	$self->{instantiate_time} = $cf::RUNTIME
		1497	if $self->{instantiate_time} > $cf::RUNTIME;
		1498	}
		1499
		1500	sub prepare_orig {
		1501	my ($self) = @_;
		1502
		1503	$self->{load_original} = 1;
		1504	$self->{instantiate_time} = $cf::RUNTIME;
		1505	$self->last_access ($cf::RUNTIME);
		1506	$self->instantiate;
		1507	}
		1508
		1509	sub load_header {
		1510	my ($self) = @_;
		1511
		1512	if ($self->load_header_temp) {
		1513	$self->prepare_temp;
690	} else {	1514	} else {
691	delete $COMMAND{$name};	1515	$self->load_header_orig
692	}	1516	or return;
		1517	$self->prepare_orig;
		1518	}
		1519
		1520	$self->{deny_reset} = 1
		1521	if $self->no_reset;
		1522
		1523	$self->default_region (cf::region::find_by_path $self->{path})
		1524	unless $self->default_region;
		1525
693	}	1526	1
		1527	}
694		1528
695	# remove extcmds	1529	sub find;
696	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1530	sub find {
697	delete $EXTCMD{$name};	1531	my ($path, $origin) = @_;
		1532
		1533	$path = normalise $path, $origin && $origin->path;
		1534
		1535	cf::lock_wait "map_find:$path";
		1536
		1537	$cf::MAP{$path} || do {
		1538	my $guard = cf::lock_acquire "map_find:$path";
		1539	my $map = new_from_path cf::map $path
		1540	or return;
		1541
		1542	$map->{last_save} = $cf::RUNTIME;
		1543
		1544	$map->load_header
		1545	or return;
		1546
		1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1548	# doing this can freeze the server in a sync job, obviously
		1549	#$cf::WAIT_FOR_TICK->wait;
		1550	$map->reset;
		1551	undef $guard;
		1552	return find $path;
		1553	}
		1554
		1555	$cf::MAP{$path} = $map
		1556	}
		1557	}
		1558
		1559	sub pre_load { }
		1560	sub post_load { }
		1561
		1562	sub load {
		1563	my ($self) = @_;
		1564
		1565	local $self->{deny_reset} = 1; # loading can take a long time
		1566
		1567	my $path = $self->{path};
		1568
698	}	1569	{
		1570	my $guard = cf::lock_acquire "map_load:$path";
699		1571
700	if (my $cb = $pkg->can ("unload")) {	1572	return if $self->in_memory != cf::MAP_SWAPPED;
701	eval {	1573
702	$cb->($pkg);	1574	$self->in_memory (cf::MAP_LOADING);
		1575
		1576	$self->alloc;
		1577
		1578	$self->pre_load;
		1579	Coro::cede;
		1580
		1581	$self->_load_objects ($self->{load_path}, 1)
		1582	or return;
		1583
		1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1585	if delete $self->{load_original};
		1586
		1587	if (my $uniq = $self->uniq_path) {
		1588	utf8::encode $uniq;
		1589	if (aio_open $uniq, O_RDONLY, 0) {
		1590	$self->clear_unique_items;
		1591	$self->_load_objects ($uniq, 0);
703	1	1592	}
704	} or warn "$pkg unloaded, but with errors: $@";	1593	}
705	}
706		1594
707	Symbol::delete_package $pkg;	1595	Coro::cede;
708	}	1596	# now do the right thing for maps
		1597	$self->link_multipart_objects;
		1598	$self->difficulty ($self->estimate_difficulty)
		1599	unless $self->difficulty;
		1600	Coro::cede;
709		1601
710	sub load_extensions {	1602	unless ($self->{deny_activate}) {
711	for my $ext (<$LIBDIR/*.ext>) {	1603	$self->decay_objects;
712	next unless -r $ext;	1604	$self->fix_auto_apply;
713	eval {	1605	$self->update_buttons;
714	load_extension $ext;	1606	Coro::cede;
715	1	1607	$self->set_darkness_map;
716	} or warn "$ext not loaded: $@";	1608	Coro::cede;
717	}	1609	$self->activate;
718	}	1610	}
719		1611
720	#############################################################################	1612	$self->in_memory (cf::MAP_IN_MEMORY);
721	# load/save/clean perl data associated with a map	1613	}
722		1614
723	*cf::mapsupport::on_clean = sub {	1615	$self->post_load;
		1616	}
		1617
		1618	sub customise_for {
		1619	my ($self, $ob) = @_;
		1620
		1621	return find "~" . $ob->name . "/" . $self->{path}
		1622	if $self->per_player;
		1623
		1624	# return find "?party/" . $ob->name . "/" . $self->{path}
		1625	# if $self->per_party;
		1626
		1627	$self
		1628	}
		1629
		1630	# find and load all maps in the 3x3 area around a map
		1631	sub load_diag {
724	my ($map) = @_;	1632	my ($map) = @_;
725		1633
726	my $path = $map->tmpname;	1634	my @diag; # diagonal neighbours
727	defined $path or return;
728		1635
729	unlink "$path.pst";	1636	for (0 .. 3) {
730	};	1637	my $neigh = $map->tile_path ($_)
		1638	or next;
		1639	$neigh = find $neigh, $map
		1640	or next;
		1641	$neigh->load;
731		1642
732	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1645	}
733		1646
734	#############################################################################	1647	for (@diag) {
735	# load/save perl data associated with player->ob objects	1648	my $neigh = find @$_
736		1649	or next;
737	sub all_objects(@) {	1650	$neigh->load;
738	@_, map all_objects ($_->inv), @_	1651	}
739	}	1652	}
740		1653
741	# TODO: compatibility cruft, remove when no longer needed	1654	sub find_sync {
742	cf::player->attach (	1655	my ($path, $origin) = @_;
743	on_load => sub {
744	my ($pl, $path) = @_;
745		1656
746	for my $o (all_objects $pl->ob) {	1657	cf::sync_job { find $path, $origin }
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1658	}
748	$o->set_ob_key_value ("_perl_data");
749		1659
750	%$o = %{ Storable::thaw pack "H*", $value };	1660	sub do_load_sync {
		1661	my ($map) = @_;
		1662
		1663	cf::sync_job { $map->load };
		1664	}
		1665
		1666	our %MAP_PREFETCH;
		1667	our $MAP_PREFETCHER = undef;
		1668
		1669	sub find_async {
		1670	my ($path, $origin) = @_;
		1671
		1672	$path = normalise $path, $origin && $origin->{path};
		1673
		1674	if (my $map = $cf::MAP{$path}) {
		1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1676	}
		1677
		1678	undef $MAP_PREFETCH{$path};
		1679	$MAP_PREFETCHER ||= cf::async {
		1680	while (%MAP_PREFETCH) {
		1681	for my $path (keys %MAP_PREFETCH) {
		1682	my $map = find $path
		1683	or next;
		1684	$map->load;
		1685
		1686	delete $MAP_PREFETCH{$path};
751	}	1687	}
752	}	1688	}
		1689	undef $MAP_PREFETCHER;
		1690	};
		1691	$MAP_PREFETCHER->prio (6);
		1692
		1693	()
		1694	}
		1695
		1696	sub save {
		1697	my ($self) = @_;
		1698
		1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1700
		1701	$self->{last_save} = $cf::RUNTIME;
		1702
		1703	return unless $self->dirty;
		1704
		1705	my $save = $self->save_path; utf8::encode $save;
		1706	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1707
		1708	$self->{load_path} = $save;
		1709
		1710	return if $self->{deny_save};
		1711
		1712	local $self->{last_access} = $self->last_access;#d#
		1713
		1714	cf::async {
		1715	$_->contr->save for $self->players;
		1716	};
		1717
		1718	if ($uniq) {
		1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1721	} else {
		1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
753	},	1723	}
754	);	1724	}
755		1725
756	#############################################################################	1726	sub swap_out {
		1727	my ($self) = @_;
757		1728
758	=head2 CORE EXTENSIONS	1729	# save first because save cedes
		1730	$self->save;
759		1731
760	Functions and methods that extend core crossfire objects.	1732	my $lock = cf::lock_acquire "map_data:" . $self->path;
761		1733
762	=head3 cf::player	1734	return if $self->players;
		1735	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1736	return if $self->{deny_save};
		1737
		1738	$self->clear;
		1739	$self->in_memory (cf::MAP_SWAPPED);
		1740	}
		1741
		1742	sub reset_at {
		1743	my ($self) = @_;
		1744
		1745	# TODO: safety, remove and allow resettable per-player maps
		1746	return 1e99 if $self->{deny_reset};
		1747
		1748	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1749	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1750
		1751	$time + $to
		1752	}
		1753
		1754	sub should_reset {
		1755	my ($self) = @_;
		1756
		1757	$self->reset_at <= $cf::RUNTIME
		1758	}
		1759
		1760	sub reset {
		1761	my ($self) = @_;
		1762
		1763	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1764
		1765	return if $self->players;
		1766
		1767	warn "resetting map ", $self->path;
		1768
		1769	$self->in_memory (cf::MAP_SWAPPED);
		1770
		1771	# need to save uniques path
		1772	unless ($self->{deny_save}) {
		1773	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1774
		1775	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1776	if $uniq;
		1777	}
		1778
		1779	delete $cf::MAP{$self->path};
		1780
		1781	$self->clear;
		1782
		1783	$_->clear_links_to ($self) for values %cf::MAP;
		1784
		1785	$self->unlink_save;
		1786	$self->destroy;
		1787	}
		1788
		1789	my $nuke_counter = "aaaa";
		1790
		1791	sub nuke {
		1792	my ($self) = @_;
		1793
		1794	delete $cf::MAP{$self->path};
		1795
		1796	$self->unlink_save;
		1797
		1798	bless $self, "cf::map";
		1799	delete $self->{deny_reset};
		1800	$self->{deny_save} = 1;
		1801	$self->reset_timeout (1);
		1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1803
		1804	$cf::MAP{$self->path} = $self;
		1805
		1806	$self->reset; # polite request, might not happen
		1807	}
		1808
		1809	=item $maps = cf::map::tmp_maps
		1810
		1811	Returns an arrayref with all map paths of currently instantiated and saved
		1812	maps. May block.
		1813
		1814	=cut
		1815
		1816	sub tmp_maps() {
		1817	[
		1818	map {
		1819	utf8::decode $_;
		1820	/\.map$/
		1821	? normalise $_
		1822	: ()
		1823	} @{ aio_readdir $TMPDIR or [] }
		1824	]
		1825	}
		1826
		1827	=item $maps = cf::map::random_maps
		1828
		1829	Returns an arrayref with all map paths of currently instantiated and saved
		1830	random maps. May block.
		1831
		1832	=cut
		1833
		1834	sub random_maps() {
		1835	[
		1836	map {
		1837	utf8::decode $_;
		1838	/\.map$/
		1839	? normalise "?random/$_"
		1840	: ()
		1841	} @{ aio_readdir $RANDOMDIR or [] }
		1842	]
		1843	}
		1844
		1845	=item cf::map::unique_maps
		1846
		1847	Returns an arrayref of paths of all shared maps that have
		1848	instantiated unique items. May block.
		1849
		1850	=cut
		1851
		1852	sub unique_maps() {
		1853	[
		1854	map {
		1855	utf8::decode $_;
		1856	/\.map$/
		1857	? normalise $_
		1858	: ()
		1859	} @{ aio_readdir $UNIQUEDIR or [] }
		1860	]
		1861	}
		1862
		1863	package cf;
		1864
		1865	=back
		1866
		1867	=head3 cf::object
		1868
		1869	=cut
		1870
		1871	package cf::object;
763		1872
764	=over 4	1873	=over 4
765		1874
766	=item cf::player::exists $login	1875	=item $ob->inv_recursive
767		1876
768	Returns true when the given account exists.	1877	Returns the inventory of the object _and_ their inventories, recursively.
769		1878
770	=cut	1879	=cut
771		1880
772	sub cf::player::exists($) {	1881	sub inv_recursive_;
773	cf::player::find $_[0]	1882	sub inv_recursive_ {
774	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1883	map { $_, inv_recursive_ $_->inv } @_
775	}	1884	}
776		1885
777	=item $player->ext_reply ($msgid, $msgtype, %msg)	1886	sub inv_recursive {
778		1887	inv_recursive_ inv $_[0]
779	Sends an ext reply to the player.
780
781	=cut
782
783	sub cf::player::ext_reply($$$%) {
784	my ($self, $id, %msg) = @_;
785
786	$msg{msgid} = $id;
787
788	$self->send ("ext " . to_json \%msg);
789	}	1888	}
		1889
		1890	package cf;
790		1891
791	=back	1892	=back
792		1893
793	=head3 cf::object::player	1894	=head3 cf::object::player
794		1895
…		…
832	(ref $cf::CFG{"may_$access"}	1933	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1934	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	1935	: $cf::CFG{"may_$access"})
835	}	1936	}
836		1937
		1938	=item $player_object->enter_link
		1939
		1940	Freezes the player and moves him/her to a special map (C<{link}>).
		1941
		1942	The player should be reasonably safe there for short amounts of time. You
		1943	I<MUST> call C<leave_link> as soon as possible, though.
		1944
		1945	Will never block.
		1946
		1947	=item $player_object->leave_link ($map, $x, $y)
		1948
		1949	Moves the player out of the special C<{link}> map onto the specified
		1950	map. If the map is not valid (or omitted), the player will be moved back
		1951	to the location he/she was before the call to C<enter_link>, or, if that
		1952	fails, to the emergency map position.
		1953
		1954	Might block.
		1955
		1956	=cut
		1957
		1958	sub link_map {
		1959	unless ($LINK_MAP) {
		1960	$LINK_MAP = cf::map::find "{link}"
		1961	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1962	$LINK_MAP->load;
		1963	}
		1964
		1965	$LINK_MAP
		1966	}
		1967
		1968	sub cf::object::player::enter_link {
		1969	my ($self) = @_;
		1970
		1971	$self->deactivate_recursive;
		1972
		1973	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1974
		1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1976	if $self->map && $self->map->{path} ne "{link}";
		1977
		1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1979	}
		1980
		1981	sub cf::object::player::leave_link {
		1982	my ($self, $map, $x, $y) = @_;
		1983
		1984	return unless $self->contr->active;
		1985
		1986	my $link_pos = delete $self->{_link_pos};
		1987
		1988	unless ($map) {
		1989	# restore original map position
		1990	($map, $x, $y) = @{ $link_pos || [] };
		1991	$map = cf::map::find $map;
		1992
		1993	unless ($map) {
		1994	($map, $x, $y) = @$EMERGENCY_POSITION;
		1995	$map = cf::map::find $map
		1996	or die "FATAL: cannot load emergency map\n";
		1997	}
		1998	}
		1999
		2000	($x, $y) = (-1, -1)
		2001	unless (defined $x) && (defined $y);
		2002
		2003	# use -1 or undef as default coordinates, not 0, 0
		2004	($x, $y) = ($map->enter_x, $map->enter_y)
		2005	if $x <=0 && $y <= 0;
		2006
		2007	$map->load;
		2008	$map->load_diag;
		2009
		2010	return unless $self->contr->active;
		2011	$self->activate_recursive;
		2012
		2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2014	$self->enter_map ($map, $x, $y);
		2015	}
		2016
		2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		2018
		2019	Moves the player to the given map-path and coordinates by first freezing
		2020	her, loading and preparing them map, calling the provided $check callback
		2021	that has to return the map if sucecssful, and then unfreezes the player on
		2022	the new (success) or old (failed) map position.
		2023
		2024	=cut
		2025
		2026	our $GOTOGEN;
		2027
		2028	sub cf::object::player::goto {
		2029	my ($self, $path, $x, $y, $check) = @_;
		2030
		2031	# do generation counting so two concurrent goto's will be executed in-order
		2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2033
		2034	$self->enter_link;
		2035
		2036	(async {
		2037	my $map = eval {
		2038	my $map = cf::map::find $path;
		2039
		2040	if ($map) {
		2041	$map = $map->customise_for ($self);
		2042	$map = $check->($map) if $check && $map;
		2043	} else {
		2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2045	}
		2046
		2047	$map
		2048	};
		2049
		2050	if ($@) {
		2051	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2052	LOG llevError | logBacktrace, Carp::longmess $@;
		2053	}
		2054
		2055	if ($gen == $self->{_goto_generation}) {
		2056	delete $self->{_goto_generation};
		2057	$self->leave_link ($map, $x, $y);
		2058	}
		2059	})->prio (1);
		2060	}
		2061
		2062	=item $player_object->enter_exit ($exit_object)
		2063
		2064	=cut
		2065
		2066	sub parse_random_map_params {
		2067	my ($spec) = @_;
		2068
		2069	my $rmp = { # defaults
		2070	xsize => (cf::rndm 15, 40),
		2071	ysize => (cf::rndm 15, 40),
		2072	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2073	#layout => string,
		2074	};
		2075
		2076	for (split /\n/, $spec) {
		2077	my ($k, $v) = split /\s+/, $_, 2;
		2078
		2079	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2080	}
		2081
		2082	$rmp
		2083	}
		2084
		2085	sub prepare_random_map {
		2086	my ($exit) = @_;
		2087
		2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2089
		2090	# all this does is basically replace the /! path by
		2091	# a new random map path (?random/...) with a seed
		2092	# that depends on the exit object
		2093
		2094	my $rmp = parse_random_map_params $exit->msg;
		2095
		2096	if ($exit->map) {
		2097	$rmp->{region} = $exit->region->name;
		2098	$rmp->{origin_map} = $exit->map->path;
		2099	$rmp->{origin_x} = $exit->x;
		2100	$rmp->{origin_y} = $exit->y;
		2101	}
		2102
		2103	$rmp->{random_seed} ||= $exit->random_seed;
		2104
		2105	my $data = cf::to_json $rmp;
		2106	my $md5 = Digest::MD5::md5_hex $data;
		2107	my $meta = "$RANDOMDIR/$md5.meta";
		2108
		2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2110	aio_write $fh, 0, (length $data), $data, 0;
		2111	undef $fh;
		2112	aio_rename "$meta~", $meta;
		2113
		2114	$exit->slaying ("?random/$md5");
		2115	$exit->msg (undef);
		2116	}
		2117	}
		2118
		2119	sub cf::object::player::enter_exit {
		2120	my ($self, $exit) = @_;
		2121
		2122	return unless $self->type == cf::PLAYER;
		2123
		2124	if ($exit->slaying eq "/!") {
		2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2126	# the problem is that $exit might not survive long enough
		2127	# so it needs to be done right now, right here
		2128	cf::sync_job { prepare_random_map $exit };
		2129	}
		2130
		2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2132	my $hp = $exit->stats->hp;
		2133	my $sp = $exit->stats->sp;
		2134
		2135	$self->enter_link;
		2136
		2137	(async {
		2138	$self->deactivate_recursive; # just to be sure
		2139	unless (eval {
		2140	$self->goto ($slaying, $hp, $sp);
		2141
		2142	1;
		2143	}) {
		2144	$self->message ("Something went wrong deep within the crossfire server. "
		2145	. "I'll try to bring you back to the map you were before. "
		2146	. "Please report this to the dungeon master!",
		2147	cf::NDI_UNIQUE | cf::NDI_RED);
		2148
		2149	warn "ERROR in enter_exit: $@";
		2150	$self->leave_link;
		2151	}
		2152	})->prio (1);
		2153	}
		2154
837	=head3 cf::client	2155	=head3 cf::client
838		2156
839	=over 4	2157	=over 4
840		2158
841	=item $client->send_drawinfo ($text, $flags)	2159	=item $client->send_drawinfo ($text, $flags)
…		…
847		2165
848	sub cf::client::send_drawinfo {	2166	sub cf::client::send_drawinfo {
849	my ($self, $text, $flags) = @_;	2167	my ($self, $text, $flags) = @_;
850		2168
851	utf8::encode $text;	2169	utf8::encode $text;
852	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
853	}	2171	}
854		2172
		2173	=item $client->ext_event ($type, %msg)
		2174
		2175	Sends an exti event to the client.
		2176
		2177	=cut
		2178
		2179	sub cf::client::ext_event($$%) {
		2180	my ($self, $type, %msg) = @_;
		2181
		2182	$msg{msgtype} = "event_$type";
		2183	$self->send_packet ("ext " . cf::to_json \%msg);
		2184	}
855		2185
856	=item $success = $client->query ($flags, "text", \&cb)	2186	=item $success = $client->query ($flags, "text", \&cb)
857		2187
858	Queues a query to the client, calling the given callback with	2188	Queues a query to the client, calling the given callback with
859	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
884	on_reply => sub {	2214	on_reply => sub {
885	my ($ns, $msg) = @_;	2215	my ($ns, $msg) = @_;
886		2216
887	# this weird shuffling is so that direct followup queries	2217	# this weird shuffling is so that direct followup queries
888	# get handled first	2218	# get handled first
889	my $queue = delete $ns->{query_queue};	2219	my $queue = delete $ns->{query_queue}
		2220	or return; # be conservative, not sure how that can happen, but we saw a crash here
890		2221
891	(shift @$queue)->[1]->($msg);	2222	(shift @$queue)->[1]->($msg);
		2223	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
892		2224
893	push @{ $ns->{query_queue} }, @$queue;	2225	push @{ $ns->{query_queue} }, @$queue;
894		2226
895	if (@{ $ns->{query_queue} } == @$queue) {	2227	if (@{ $ns->{query_queue} } == @$queue) {
896	if (@$queue) {	2228	if (@$queue) {
…		…
900	}	2232	}
901	}	2233	}
902	},	2234	},
903	);	2235	);
904		2236
905	=item $client->coro (\&cb)	2237	=item $client->async (\&cb)
906		2238
907	Create a new coroutine, running the specified callback. The coroutine will	2239	Create a new coroutine, running the specified callback. The coroutine will
908	be automatically cancelled when the client gets destroyed (e.g. on logout,	2240	be automatically cancelled when the client gets destroyed (e.g. on logout,
909	or loss of connection).	2241	or loss of connection).
910		2242
911	=cut	2243	=cut
912		2244
913	sub cf::client::coro {	2245	sub cf::client::async {
914	my ($self, $cb) = @_;	2246	my ($self, $cb) = @_;
915		2247
916	my $coro; $coro = async {	2248	my $coro = &Coro::async ($cb);
917	eval {	2249
918	$cb->();	2250	$coro->on_destroy (sub {
919	};
920	warn $@ if $@;
921	delete $self->{_coro}{$coro+0};	2251	delete $self->{_coro}{$coro+0};
922	};	2252	});
923		2253
924	$self->{_coro}{$coro+0} = $coro;	2254	$self->{_coro}{$coro+0} = $coro;
		2255
		2256	$coro
925	}	2257	}
926		2258
927	cf::client->attach (	2259	cf::client->attach (
928	on_destroy => sub {	2260	on_destroy => sub {
929	my ($ns) = @_;	2261	my ($ns) = @_;
…		…
954		2286
955	# here we export the classes and methods available to script code	2287	# here we export the classes and methods available to script code
956		2288
957	=pod	2289	=pod
958		2290
959	The following fucntions and emthods are available within a safe environment:	2291	The following functions and methods are available within a safe environment:
960		2292
961	cf::object contr pay_amount pay_player map	2293	cf::object contr pay_amount pay_player map
962	cf::object::player player	2294	cf::object::player player
963	cf::player peaceful	2295	cf::player peaceful
964	cf::map trigger	2296	cf::map trigger
…		…
1049	#############################################################################	2381	#############################################################################
1050		2382
1051	=head2 EXTENSION DATABASE SUPPORT	2383	=head2 EXTENSION DATABASE SUPPORT
1052		2384
1053	Crossfire maintains a very simple database for extension use. It can	2385	Crossfire maintains a very simple database for extension use. It can
1054	currently store anything that can be serialised using Storable, which	2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1055	excludes objects.	2387	convert to/from binary).
1056		2388
1057	The parameter C<$family> should best start with the name of the extension	2389	The parameter C<$family> should best start with the name of the extension
1058	using it, it should be unique.	2390	using it, it should be unique.
1059		2391
1060	=over 4	2392	=over 4
1061		2393
1062	=item $hashref = cf::db_get $family
1063
1064	Return a hashref for use by the extension C<$family>, which can be
1065	modified. After modifications, you have to call C<cf::db_dirty> or
1066	C<cf::db_sync>.
1067
1068	=item $value = cf::db_get $family => $key	2394	=item $value = cf::db_get $family => $key
1069		2395
1070	Returns a single value from the database	2396	Returns a single value from the database.
1071
1072	=item cf::db_put $family => $hashref
1073
1074	Stores the given family hashref into the database. Updates are delayed, if
1075	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1076		2397
1077	=item cf::db_put $family => $key => $value	2398	=item cf::db_put $family => $key => $value
1078		2399
1079	Stores the given C<$value> in the family hash. Updates are delayed, if you	2400	Stores the given C<$value> in the family.
1080	want the data to be synced to disk immediately, use C<cf::db_sync>.
1081
1082	=item cf::db_dirty
1083
1084	Marks the database as dirty, to be updated at a later time.
1085
1086	=item cf::db_sync
1087
1088	Immediately write the database to disk I<if it is dirty>.
1089		2401
1090	=cut	2402	=cut
1091		2403
1092	our $DB;	2404	our $DB;
1093		2405
1094	{	2406	sub db_init {
1095	my $path = cf::localdir . "/database.pst";	2407	unless ($DB) {
		2408	$DB = BDB::db_create $DB_ENV;
1096		2409
1097	sub db_load() {	2410	cf::sync_job {
1098	warn "loading database $path\n";#d# remove later	2411	eval {
1099	$DB = stat $path ? Storable::retrieve $path : { };	2412	$DB->set_flags (BDB::CHKSUM);
1100	}
1101		2413
1102	my $pid;	2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1103		2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1104	sub db_save() {	2416	cf::cleanup "db_open(db): $!" if $!;
1105	warn "saving database $path\n";#d# remove later	2417	};
1106	waitpid $pid, 0 if $pid;	2418	cf::cleanup "db_open(db): $@" if $@;
1107	if (0 == ($pid = fork)) {
1108	$DB->{_meta}{version} = 1;
1109	Storable::nstore $DB, "$path~";
1110	rename "$path~", $path;
1111	cf::_exit 0 if defined $pid;
1112	}	2419	};
1113	}
1114
1115	my $dirty;
1116
1117	sub db_sync() {
1118	db_save if $dirty;
1119	undef $dirty;
1120	}
1121
1122	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1123	db_sync;
1124	});	2420	}
		2421	}
1125		2422
1126	sub db_dirty() {
1127	$dirty = 1;
1128	$idle->start;
1129	}
1130
1131	sub db_get($;$) {	2423	sub db_get($$) {
1132	@_ >= 2	2424	my $key = "$_[0]/$_[1]";
1133	? $DB->{$_[0]}{$_[1]}
1134	: ($DB->{$_[0]} ||= { })
1135	}
1136		2425
		2426	cf::sync_job {
		2427	BDB::db_get $DB, undef, $key, my $data;
		2428
		2429	$! ? ()
		2430	: $data
		2431	}
		2432	}
		2433
1137	sub db_put($$;$) {	2434	sub db_put($$$) {
1138	if (@_ >= 3) {	2435	BDB::dbreq_pri 4;
1139	$DB->{$_[0]}{$_[1]} = $_[2];	2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1140	} else {	2437	}
1141	$DB->{$_[0]} = $_[1];
1142	}
1143	db_dirty;
1144	}
1145		2438
1146	cf::global->attach (	2439	=item cf::cache $id => [$paths...], $processversion => $process
1147	prio => 10000,	2440
1148	on_cleanup => sub {	2441	Generic caching function that returns the value of the resource $id,
1149	db_sync;	2442	caching and regenerating as required.
		2443
		2444	This function can block.
		2445
		2446	=cut
		2447
		2448	sub cache {
		2449	my ($id, $src, $processversion, $process) = @_;
		2450
		2451	my $meta =
		2452	join "\x00",
		2453	$processversion,
		2454	map {
		2455	aio_stat $_
		2456	and Carp::croak "$_: $!";
		2457
		2458	($_, (stat _)[7,9])
		2459	} @$src;
		2460
		2461	my $dbmeta = db_get cache => "$id/meta";
		2462	if ($dbmeta ne $meta) {
		2463	# changed, we may need to process
		2464
		2465	my @data;
		2466	my $md5;
		2467
		2468	for (0 .. $#$src) {
		2469	0 <= aio_load $src->[$_], $data[$_]
		2470	or Carp::croak "$src->[$_]: $!";
1150	},	2471	}
1151	);	2472
		2473	# if processing is expensive, check
		2474	# checksum first
		2475	if (1) {
		2476	$md5 =
		2477	join "\x00",
		2478	$processversion,
		2479	map {
		2480	Coro::cede;
		2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2482	} 0.. $#$src;
		2483
		2484
		2485	my $dbmd5 = db_get cache => "$id/md5";
		2486	if ($dbmd5 eq $md5) {
		2487	db_put cache => "$id/meta", $meta;
		2488
		2489	return db_get cache => "$id/data";
		2490	}
		2491	}
		2492
		2493	my $t1 = Time::HiRes::time;
		2494	my $data = $process->(\@data);
		2495	my $t2 = Time::HiRes::time;
		2496
		2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2498
		2499	db_put cache => "$id/data", $data;
		2500	db_put cache => "$id/md5" , $md5;
		2501	db_put cache => "$id/meta", $meta;
		2502
		2503	return $data;
		2504	}
		2505
		2506	db_get cache => "$id/data"
		2507	}
		2508
		2509	=item fork_call { }, $args
		2510
		2511	Executes the given code block with the given arguments in a seperate
		2512	process, returning the results. Everything must be serialisable with
		2513	Coro::Storable. May, of course, block. Note that the executed sub may
		2514	never block itself or use any form of Event handling.
		2515
		2516	=cut
		2517
		2518	sub fork_call(&@) {
		2519	my ($cb, @args) = @_;
		2520
		2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2522	# or die "socketpair: $!";
		2523	pipe my $fh1, my $fh2
		2524	or die "pipe: $!";
		2525
		2526	if (my $pid = fork) {
		2527	close $fh2;
		2528
		2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2530	$res = Coro::Storable::thaw $res;
		2531
		2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2533
		2534	die $$res unless "ARRAY" eq ref $res;
		2535
		2536	return wantarray ? @$res : $res->[-1];
		2537	} else {
		2538	reset_signals;
		2539	local $SIG{__WARN__};
		2540	local $SIG{__DIE__};
		2541	eval {
		2542	close $fh1;
		2543
		2544	my @res = eval { $cb->(@args) };
		2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2546	};
		2547
		2548	warn $@ if $@;
		2549	_exit 0;
		2550	}
1152	}	2551	}
1153		2552
1154	#############################################################################	2553	#############################################################################
1155	# the server's main()	2554	# the server's init and main functions
		2555
		2556	sub load_facedata($) {
		2557	my ($path) = @_;
		2558
		2559	warn "loading facedata from $path\n";
		2560
		2561	my $facedata;
		2562	0 < aio_load $path, $facedata
		2563	or die "$path: $!";
		2564
		2565	$facedata = Coro::Storable::thaw $facedata;
		2566
		2567	$facedata->{version} == 2
		2568	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2569
		2570	{
		2571	my $faces = $facedata->{faceinfo};
		2572
		2573	while (my ($face, $info) = each %$faces) {
		2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2578	Coro::cede;
		2579	}
		2580
		2581	while (my ($face, $info) = each %$faces) {
		2582	next unless $info->{smooth};
		2583	my $idx = cf::face::find $face
		2584	or next;
		2585	if (my $smooth = cf::face::find $info->{smooth}) {
		2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2587	} else {
		2588	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2589	}
		2590	Coro::cede;
		2591	}
		2592	}
		2593
		2594	{
		2595	my $anims = $facedata->{animinfo};
		2596
		2597	while (my ($anim, $info) = each %$anims) {
		2598	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2599	Coro::cede;
		2600	}
		2601
		2602	cf::anim::invalidate_all; # d'oh
		2603	}
		2604
		2605	1
		2606	}
		2607
		2608	sub reload_regions {
		2609	load_resource_file "$MAPDIR/regions"
		2610	or die "unable to load regions file\n";
		2611	}
		2612
		2613	sub reload_facedata {
		2614	load_facedata "$DATADIR/facedata"
		2615	or die "unable to load facedata\n";
		2616	}
		2617
		2618	sub reload_archetypes {
		2619	load_resource_file "$DATADIR/archetypes"
		2620	or die "unable to load archetypes\n";
		2621	}
		2622
		2623	sub reload_treasures {
		2624	load_resource_file "$DATADIR/treasures"
		2625	or die "unable to load treasurelists\n";
		2626	}
		2627
		2628	sub reload_resources {
		2629	warn "reloading resource files...\n";
		2630
		2631	reload_regions;
		2632	reload_facedata;
		2633	#reload_archetypes;#d#
		2634	reload_archetypes;
		2635	reload_treasures;
		2636
		2637	warn "finished reloading resource files\n";
		2638	}
		2639
		2640	sub init {
		2641	reload_resources;
		2642	}
1156		2643
1157	sub cfg_load {	2644	sub cfg_load {
1158	open my $fh, "<:utf8", cf::confdir . "/config"	2645	open my $fh, "<:utf8", "$CONFDIR/config"
1159	or return;	2646	or return;
1160		2647
1161	local $/;	2648	local $/;
1162	*CFG = YAML::Syck::Load <$fh>;	2649	*CFG = YAML::Syck::Load <$fh>;
		2650
		2651	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2652
		2653	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2654	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2655
		2656	if (exists $CFG{mlockall}) {
		2657	eval {
		2658	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2659	and die "WARNING: m(un)lockall failed: $!\n";
		2660	};
		2661	warn $@ if $@;
		2662	}
1163	}	2663	}
1164		2664
1165	sub main {	2665	sub main {
		2666	# we must not ever block the main coroutine
		2667	local $Coro::idle = sub {
		2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2669	(async {
		2670	Event::one_event;
		2671	})->prio (Coro::PRIO_MAX);
		2672	};
		2673
1166	cfg_load;	2674	cfg_load;
1167	db_load;	2675	db_init;
1168	load_extensions;	2676	load_extensions;
		2677
		2678	$TICK_WATCHER->start;
1169	Event::loop;	2679	Event::loop;
1170	}	2680	}
1171		2681
1172	#############################################################################	2682	#############################################################################
1173	# initialisation	2683	# initialisation and cleanup
1174		2684
1175	sub _perl_reload(&) {	2685	# install some emergency cleanup handlers
		2686	BEGIN {
		2687	for my $signal (qw(INT HUP TERM)) {
		2688	Event->signal (
		2689	reentrant => 0,
		2690	data => WF_AUTOCANCEL,
		2691	signal => $signal,
		2692	prio => 0,
		2693	cb => sub {
		2694	cf::cleanup "SIG$signal";
		2695	},
		2696	);
		2697	}
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
1176	my ($msg) = @_;	2734	my ($make_core) = @_;
1177		2735
1178	$msg->("reloading...");	2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
1179		2739
1180	eval {	2740	sub do_reload_perl() {
1181	# cancel all watchers	2741	# can/must only be called in main
		2742	if ($Coro::current != $Coro::main) {
		2743	warn "can only reload from main coroutine";
		2744	return;
		2745	}
		2746
		2747	warn "reloading...";
		2748
		2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
		2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
		2755
		2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
		2759	# if anything goes wrong in here, we should simply crash as we already saved
		2760
		2761	warn "cancelling all WF_AUTOCANCEL watchers";
1182	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
1183	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
1184	}	2764	}
1185		2765
1186	# unload all extensions	2766	warn "flushing outstanding aio requests";
1187	for (@exts) {	2767	for (;;) {
1188	$msg->("unloading <$_>");	2768	BDB::flush;
1189	unload_extension $_;	2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
		2777	warn "cancelling all extension coros";
		2778	$_->cancel for values %EXT_CORO;
		2779	%EXT_CORO = ();
		2780
		2781	warn "removing commands";
		2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
		2789	warn "... unloading $pkg";
		2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
1190	}	2796	}
1191		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
1192	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
1193	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
1194	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1195		2805
1196	$msg->("removing <$k>");	2806	warn "... unloading $k";
1197	delete $INC{$k};	2807	delete $INC{$k};
1198		2808
1199	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
1200	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
1201		2811
…		…
1204	}	2814	}
1205		2815
1206	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
1207	}	2817	}
1208		2818
1209	# sync database to disk
1210	cf::db_sync;
1211
1212	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
1213	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
1214	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1215		2822
1216	# remove register_script_function callbacks
1217	# TODO
1218
1219	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
1220	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
1221		2826
1222	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
1223	# and global variables created in xs	2828	# and global variables created in xs
1224	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
1225		2830
1226	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
1227	$msg->("reloading cf.pm");	2833	warn "reloading cf.pm";
1228	require cf;	2834	require cf;
1229	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1230		2836
1231	# load config and database again	2837	warn "loading config and database again";
1232	cf::cfg_load;	2838	cf::cfg_load;
1233	cf::db_load;
1234		2839
1235	# load extensions	2840	warn "loading extensions";
1236	$msg->("load extensions");
1237	cf::load_extensions;	2841	cf::load_extensions;
1238		2842
1239	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
1240	$msg->("reattach");	2844	_global_reattach; # objects, sockets
1241	_global_reattach;	2845	warn "reattaching attachments to maps";
		2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
		2849
		2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
		2854	warn $@;
		2855	warn "error while reloading, exiting.";
		2856	exit 1;
1242	};	2857	};
1243	$msg->($@) if $@;
1244		2858
1245	$msg->("reloaded");	2859	warn "reloaded";
1246	};	2860	};
1247		2861
1248	sub perl_reload() {	2862	our $RELOAD_WATCHER; # used only during reload
1249	_perl_reload {	2863
1250	warn $_[0];	2864	sub reload_perl() {
1251	print "$_[0]\n";	2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
		2867
		2868	$RELOAD_WATCHER ||= Event->timer (
		2869	reentrant => 0,
		2870	after => 0,
		2871	data => WF_AUTOCANCEL,
		2872	cb => sub {
		2873	do_reload_perl;
		2874	undef $RELOAD_WATCHER;
		2875	},
1252	};	2876	);
1253	}	2877	}
1254		2878
1255	register "<global>", __PACKAGE__;
1256
1257	register_command "perl-reload" => sub {	2879	register_command "reload" => sub {
1258	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
1259		2881
1260	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
1261	_perl_reload {	2883	$who->message ("reloading server.");
1262	warn $_[0];	2884	async { reload_perl };
1263	$who->message ($_[0]);	2885	}
		2886	};
		2887
		2888	unshift @INC, $LIBDIR;
		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
		2915	$TICK_WATCHER = Event->timer (
		2916	reentrant => 0,
		2917	parked => 1,
		2918	prio => 0,
		2919	at => $NEXT_TICK || $TICK,
		2920	data => WF_AUTOCANCEL,
		2921	cb => sub {
		2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
		2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1264	};	2953	};
1265	}
1266	};
1267		2954
1268	unshift @INC, $LIBDIR;	2955	$RUNTIME += $TICK;
1269
1270	$TICK_WATCHER = Event->timer (
1271	prio => 0,
1272	at => $NEXT_TICK || 1,
1273	data => WF_AUTOCANCEL,
1274	cb => sub {
1275	cf::server_tick; # one server iteration
1276
1277	my $NOW = Event::time;
1278	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
1279		2977
1280	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
1281	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1282		2980
1283	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
1284	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
1285	},	2990	},
1286	);	2991	);
1287		2992
		2993	{
		2994	BDB::max_poll_time $TICK * 0.1;
		2995	$BDB_POLL_WATCHER = Event->io (
		2996	reentrant => 0,
		2997	fd => BDB::poll_fileno,
		2998	poll => 'r',
		2999	prio => 0,
		3000	data => WF_AUTOCANCEL,
		3001	cb => \&BDB::poll_cb,
		3002	);
		3003	BDB::min_parallel 8;
		3004
		3005	BDB::set_sync_prepare {
		3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
		3039	};
		3040	}
		3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
1288	IO::AIO::max_poll_time $TICK * 0.2;	3047	IO::AIO::max_poll_time $TICK * 0.1;
1289		3048	$AIO_POLL_WATCHER = Event->io (
1290	Event->io (fd => IO::AIO::poll_fileno,	3049	reentrant => 0,
1291	poll => 'r',
1292	prio => 5,
1293	data => WF_AUTOCANCEL,	3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
1294	cb => \&IO::AIO::poll_cb);	3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
		3098
		3099	END { cf::emergency_save }
1295		3100
1296	1	3101	1
1297		3102

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