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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.230 by root, Mon Apr 2 18:04:46 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
21		24
22	use BDB ();	25	use BDB ();
23	use Data::Dumper;	26	use Data::Dumper;
24	use Digest::MD5;	27	use Digest::MD5;
25	use Fcntl;	28	use Fcntl;
…		…
28	use Time::HiRes;	31	use Time::HiRes;
29	use Compress::LZF;	32	use Compress::LZF;
30		33
31	# configure various modules to our taste	34	# configure various modules to our taste
32	#	35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		39
36	$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
37		41
…		…
50	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
52		56
53	our $RELOAD; # number of reloads so far	57	our $RELOAD; # number of reloads so far
54	our @EVENT;	58	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		59
57	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(!)
58	our $TICK_WATCHER;	73	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	76	our $NEXT_TICK;
62	our $NOW;	77	our $NOW;
…		…
71	our $RUNTIME;	86	our $RUNTIME;
72		87
73	our %PLAYER; # all users	88	our %PLAYER; # all users
74	our %MAP; # all maps	89	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		91
82	# 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 ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		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 $tick_start; # for load detecting purposes
		98
85	binmode STDOUT;	99	binmode STDOUT;
86	binmode STDERR;	100	binmode STDERR;
87		101
88	# read virtual server time, if available	102	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
93	}	107	}
94		108
95	mkdir cf::localdir;	109	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		111
102	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
103		113
104	sub cf::map::normalise;	114	sub cf::map::normalise;
105		115
…		…
116	=item $cf::RUNTIME	126	=item $cf::RUNTIME
117		127
118	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
119	every server tick.	129	every server tick.
120		130
121	=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
122		134
123	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
124	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.
125		139
126	=item $cf::NOW	140	=item $cf::NOW
127		141
128	The time of the last (current) server tick.	142	The time of the last (current) server tick.
129		143
130	=item $cf::TICK	144	=item $cf::TICK
131		145
132	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.
133		157
134	=item %cf::CFG	158	=item %cf::CFG
135		159
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	161	from wherever your confdir points to.
138		162
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		164
141	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
142	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
143	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.
144	window of cpu time available, or simply to synchronise to the server tick.
145		168
146	=back	169	=back
147		170
148	=cut	171	=cut
149		172
150	BEGIN {	173	BEGIN {
151	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	175	my $msg = join "", @_;
153	utf8::encode $msg;
154		176
155	$msg .= "\n"	177	$msg .= "\n"
156	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
157		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
158	LOG llevError, $msg;	183	LOG llevError, $msg;
159	};	184	};
160	}	185	}
161		186
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@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';
167	@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)
168		194
169	# 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
170	# within the Safe compartment.	196	# within the Safe compartment.
171	for my $pkg (qw(	197	for my $pkg (qw(
172	cf::global cf::attachable	198	cf::global cf::attachable
…		…
180	}	206	}
181		207
182	$Event::DIED = sub {	208	$Event::DIED = sub {
183	warn "error in event callback: @_";	209	warn "error in event callback: @_";
184	};	210	};
		211
		212	#############################################################################
185		213
186	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
187		215
188	=over 4	216	=over 4
189		217
…		…
232	returned.	260	returned.
233		261
234	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
236		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
237	=cut	269	=cut
238		270
239	our %LOCK;	271	our %LOCK;
240		272
241	sub lock_wait($) {	273	sub lock_wait($) {
…		…
258		290
259	Coro::guard {	291	Coro::guard {
260	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
262	}	294	}
		295	}
		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
263	}	301	}
264		302
265	sub freeze_mainloop {	303	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
267		305
…		…
282		320
283	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
284		322
285	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
286		324
287	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
290		329
291	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
294	fast or be very important.	333	fast or be very important.
…		…
297		336
298	sub sync_job(&) {	337	sub sync_job(&) {
299	my ($job) = @_;	338	my ($job) = @_;
300		339
301	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
302	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
304		345
305	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
317		358
318	while ($busy) {	359	while ($busy) {
319	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
320	}	361	}
321		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
322	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
323	} else {	371	} else {
324	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
325		373
326	$job->()	374	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
346		394
347	$coro	395	$coro
348	}	396	}
349		397
350	sub write_runtime {	398	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		399
353	my $runtime = cf::localdir . "/runtime";	400	Executes the given code block with the given arguments in a seperate
		401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
354		404
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	=cut
356	or return;
357		406
358	my $value = $cf::RUNTIME + 90 + 10;	407	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	408	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		409
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
363	and return;	411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
364		414
365	# always fsync - this file is important	415	if (my $pid = fork) {
366	aio_fsync $fh
367	and return;
368
369	close $fh	416	close $fh2;
370	or return;
371		417
372	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
373	and return;	419	$res = Coro::Storable::thaw $res;
374		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
375	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
376	}	556	}
377		557
378	=item cf::datalog type => key => value, ...	558	=item cf::datalog type => key => value, ...
379		559
380	Log a datalog packet of the given type with the given key-value pairs.	560	Log a datalog packet of the given type with the given key-value pairs.
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
400		580
401	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	583	Crossfire TRT).
404		584
405	=over 4	585	=over 4
406		586
407	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
408		588
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
572		752
573	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		757
578	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	759	my $pkg = shift @arg;
580		760
581	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
611	}	791	}
612		792
613	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
614	} else {	794	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	796	}
617		797
618	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
619	}	799	}
620		800
…		…
622	if (ref $_[0]) {	802	if (ref $_[0]) {
623	_object_attach @_;	803	_object_attach @_;
624	} else {	804	} else {
625	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
626	}	806	}
		807	_recalc_want;
627	};	808	};
628		809
629	# all those should be optimised	810	# all those should be optimised
630	sub cf::attachable::detach {	811	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
635	reattach ($obj);	816	reattach ($obj);
636	} else {	817	} else {
637	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
638	}	819	}
		820	_recalc_want;
639	};	821	};
640		822
641	sub cf::attachable::attached {	823	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
643		825
…		…
816	or return;	998	or return;
817	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1000	}
819		1001
820	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
822	return ($data, $av);	1004	return ($data, $av);
823	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
824		1012
825	#############################################################################	1013	#############################################################################
826	# command handling &c	1014	# command handling &c
827		1015
828	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1030	}
843		1031
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1033
846	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
847		1035
848	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
849	called.	1037	called.
850		1038
851	=cut	1039	=cut
…		…
886		1074
887	cf::override;	1075	cf::override;
888	},	1076	},
889	);	1077	);
890		1078
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
926	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1084	next unless -r $path;
928	eval {	1085
929	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
930	1	1143	}
931	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
932	}	1149	};
933	}	1150	}
934		1151
935	#############################################################################	1152	#############################################################################
936		1153
		1154	=back
		1155
937	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
938		1157
939	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
940		1159
941	=cut	1160	=cut
…		…
953	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
954		1173
955	=cut	1174	=cut
956		1175
957	sub playerdir($) {	1176	sub playerdir($) {
958	cf::localdir	1177	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1179	}
964		1180
965	sub path($) {	1181	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1183
968	(playerdir $login) . "/$login.pl"	1184	(playerdir $login) . "/playerdata"
969	}	1185	}
970		1186
971	sub find_active($) {	1187	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1188	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1189	and $cf::PLAYER{$_[0]}->active
…		…
986	my $login = $_[0];	1202	my $login = $_[0];
987		1203
988	my $guard = cf::lock_acquire "user_find:$login";	1204	my $guard = cf::lock_acquire "user_find:$login";
989		1205
990	$cf::PLAYER{$_[0]} || do {	1206	$cf::PLAYER{$_[0]} || do {
		1207	# rename old playerfiles to new ones
		1208	#TODO: remove when no longer required
		1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1212	aio_unlink +(playerdir $login) . "/$login.pl";
		1213
991	my $pl = load_pl path $login	1214	my $pl = load_pl path $login
992	or return;	1215	or return;
993	$cf::PLAYER{$login} = $pl	1216	$cf::PLAYER{$login} = $pl
994	}	1217	}
995	}	1218	}
…		…
1079	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1080		1303
1081	=cut	1304	=cut
1082		1305
1083	sub list_logins {	1306	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1308	or return [];
1086		1309
1087	my @logins;	1310	my @logins;
1088		1311
1089	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1124	}	1347	}
1125		1348
1126	\@paths	1349	\@paths
1127	}	1350	}
1128		1351
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1352	=item $player->ext_reply ($msgid, %msg)
1130		1353
1131	Sends an ext reply to the player.	1354	Sends an ext reply to the player.
1132		1355
1133	=cut	1356	=cut
1134		1357
1135	sub ext_reply($$$%) {	1358	sub ext_reply($$%) {
1136	my ($self, $id, %msg) = @_;	1359	my ($self, $id, %msg) = @_;
1137		1360
1138	$msg{msgid} = $id;	1361	$msg{msgid} = $id;
1139		1362
1140	$self->send ("ext " . cf::to_json \%msg);	1363	$self->send ("ext " . cf::to_json \%msg);
1141	}	1364	}
1142		1365
1143	package cf;	1366	=item $player->ext_event ($type, %msg)
		1367
		1368	Sends an ext event to the client.
		1369
		1370	=cut
		1371
		1372	sub ext_event($$%) {
		1373	my ($self, $type, %msg) = @_;
		1374
		1375	$self->ns->ext_event ($type, %msg);
		1376	}
		1377
		1378	=head3 cf::region
		1379
		1380	=over 4
		1381
		1382	=cut
		1383
		1384	package cf::region;
		1385
		1386	=item cf::region::find_by_path $path
		1387
		1388	Tries to decuce the likely region for a map knowing only its path.
		1389
		1390	=cut
		1391
		1392	sub find_by_path($) {
		1393	my ($path) = @_;
		1394
		1395	my ($match, $specificity);
		1396
		1397	for my $region (list) {
		1398	if ($region->match && $path =~ $region->match) {
		1399	($match, $specificity) = ($region, $region->specificity)
		1400	if $region->specificity > $specificity;
		1401	}
		1402	}
		1403
		1404	$match
		1405	}
1144		1406
1145	=back	1407	=back
1146
1147		1408
1148	=head3 cf::map	1409	=head3 cf::map
1149		1410
1150	=over 4	1411	=over 4
1151		1412
…		…
1206	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1207		1468
1208	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1209	local $self->{path};	1470	local $self->{path};
1210	local $self->{load_path};	1471	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1472
1214	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1215	}	1474	}
1216		1475
1217	sub normalise {	1476	sub normalise {
…		…
1289		1548
1290	# the original (read-only) location	1549	# the original (read-only) location
1291	sub load_path {	1550	sub load_path {
1292	my ($self) = @_;	1551	my ($self) = @_;
1293		1552
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1553	"$MAPDIR/$self->{path}.map"
1295	}	1554	}
1296		1555
1297	# the temporary/swap location	1556	# the temporary/swap location
1298	sub save_path {	1557	sub save_path {
1299	my ($self) = @_;	1558	my ($self) = @_;
1300		1559
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1561	"$TMPDIR/$path.map"
1303	}	1562	}
1304		1563
1305	# the unique path, undef == no special unique path	1564	# the unique path, undef == no special unique path
1306	sub uniq_path {	1565	sub uniq_path {
1307	my ($self) = @_;	1566	my ($self) = @_;
1308		1567
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1569	"$UNIQUEDIR/$path"
1311	}	1570	}
1312		1571
1313	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1314	# all maps in C++...	1573	# all maps in C++...
1315	sub change_all_map_light {	1574	sub change_all_map_light {
1316	my ($change) = @_;	1575	my ($change) = @_;
1317		1576
1318	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1319	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
		1579	}
		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
1320	}	1587	}
1321		1588
1322	sub unlink_save {	1589	sub unlink_save {
1323	my ($self) = @_;	1590	my ($self) = @_;
1324		1591
…		…
1382	$self->load_header_orig	1649	$self->load_header_orig
1383	or return;	1650	or return;
1384	$self->prepare_orig;	1651	$self->prepare_orig;
1385	}	1652	}
1386		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
		1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
		1659
1387	1	1660	1
1388	}	1661	}
1389		1662
1390	sub find;	1663	sub find;
1391	sub find {	1664	sub find {
…		…
1403	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1404		1677
1405	$map->load_header	1678	$map->load_header
1406	or return;	1679	or return;
1407		1680
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1411	$map->reset;	1684	$map->reset;
1412	undef $guard;	1685	undef $guard;
1413	return find $path;	1686	return find $path;
…		…
1424	my ($self) = @_;	1697	my ($self) = @_;
1425		1698
1426	local $self->{deny_reset} = 1; # loading can take a long time	1699	local $self->{deny_reset} = 1; # loading can take a long time
1427		1700
1428	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1429	my $guard = cf::lock_acquire "map_load:$path";	1704	my $guard = cf::lock_acquire "map_load:$path";
1430		1705
1431	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1432		1707
1433	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1434		1709
1435	$self->alloc;	1710	$self->alloc;
1436		1711
1437	$self->pre_load;	1712	$self->pre_load;
1438
1439	$self->_load_objects ($self->{load_path}, 1)
1440	or return;
1441
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1443	if delete $self->{load_original};
1444
1445	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {
1448	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);
1450	}
1451	}
1452
1453	Coro::cede;
1454
1455	# now do the right thing for maps
1456	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;	1713	Coro::cede;
1463	$self->set_darkness_map;	1714
		1715	$self->_load_objects ($self->{load_path}, 1)
		1716	or return;
		1717
		1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
		1720
		1721	if (my $uniq = $self->uniq_path) {
		1722	utf8::encode $uniq;
		1723	if (aio_open $uniq, O_RDONLY, 0) {
		1724	$self->clear_unique_items;
		1725	$self->_load_objects ($uniq, 0);
		1726	}
		1727	}
		1728
		1729	Coro::cede;
		1730	# now do the right thing for maps
		1731	$self->link_multipart_objects;
1464	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	1733	unless $self->difficulty;
1466	Coro::cede;	1734	Coro::cede;
		1735
		1736	unless ($self->{deny_activate}) {
		1737	$self->decay_objects;
		1738	$self->fix_auto_apply;
		1739	$self->update_buttons;
		1740	Coro::cede;
		1741	$self->set_darkness_map;
		1742	Coro::cede;
1467	$self->activate;	1743	$self->activate;
		1744	}
		1745
		1746	$self->in_memory (cf::MAP_IN_MEMORY);
1468	}	1747	}
1469		1748
1470	$self->post_load;	1749	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	1750	}
1474		1751
1475	sub customise_for {	1752	sub customise_for {
1476	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1477		1754
1478	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
1480		1760
1481	$self	1761	$self
1482	}	1762	}
1483		1763
1484	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
…		…
1595		1875
1596	sub reset_at {	1876	sub reset_at {
1597	my ($self) = @_;	1877	my ($self) = @_;
1598		1878
1599	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1602		1881
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		1884
…		…
1616	my ($self) = @_;	1895	my ($self) = @_;
1617		1896
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		1898
1620	return if $self->players;	1899	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		1900
1623	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
1624		1902
1625	$self->in_memory (cf::MAP_SWAPPED);	1903	$self->in_memory (cf::MAP_SWAPPED);
1626		1904
1627	# need to save uniques path	1905	# need to save uniques path
1628	unless ($self->{deny_save}) {	1906	unless ($self->{deny_save}) {
…		…
1660	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1661		1939
1662	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1663	}	1941	}
1664		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
1665	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1666		1980
1667	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	1982	instantiated unique items. May block.
1669		1983
1670	=cut	1984	=cut
1671		1985
1672	sub unique_maps() {	1986	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	1987	[
1674	or return;	1988	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	1989	utf8::decode $_;
1680	next if /\.pst$/;	1990	/\.map$/
1681	next unless /^$PATH_SEP/o;	1991	? normalise $_
1682		1992	: ()
1683	push @paths, cf::map::normalise $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	1994	]
1685
1686	\@paths
1687	}	1995	}
1688		1996
1689	package cf;	1997	package cf;
1690		1998
1691	=back	1999	=back
…		…
1797	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
1798		2106
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2108
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2110	if $self->map && $self->map->{path} ne "{link}";
1803		2111
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2113	}
1806		2114
1807	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
1809		2119
1810	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1811		2121
1812	unless ($map) {	2122	unless ($map) {
1813	# restore original map position	2123	# restore original map position
…		…
1836		2146
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1839	}	2149	}
1840		2150
1841	cf::player->attach (
1842	on_logout => sub {
1843	my ($pl) = @_;
1844
1845	# abort map switching before logout
1846	if ($pl->ob->{_link_pos}) {
1847	cf::sync_job {
1848	$pl->ob->leave_link
1849	};
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854
1855	# try to abort aborted map switching on player login :)
1856	# should happen only on crashes
1857	if ($pl->ob->{_link_pos}) {
1858	$pl->ob->enter_link;
1859	(async {
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872
1873	=item $player_object->goto ($path, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1874		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
1875	=cut	2158	=cut
		2159
		2160	our $GOTOGEN;
1876		2161
1877	sub cf::object::player::goto {	2162	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2167
1880	$self->enter_link;	2168	$self->enter_link;
1881		2169
1882	(async {	2170	(async {
1883	my $map = eval {	2171	my $map = eval {
1884	my $map = cf::map::find $path;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
		2180
1886	$map	2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2187	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1891	})->prio (1);	2193	})->prio (1);
1892	}	2194	}
1893		2195
1894	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
1895		2197
…		…
1934		2236
1935	$rmp->{random_seed} ||= $exit->random_seed;	2237	$rmp->{random_seed} ||= $exit->random_seed;
1936		2238
1937	my $data = cf::to_json $rmp;	2239	my $data = cf::to_json $rmp;
1938	my $md5 = Digest::MD5::md5_hex $data;	2240	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2241	my $meta = "$RANDOMDIR/$md5.meta";
1940		2242
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2244	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2245	undef $fh;
1944	aio_rename "$meta~", $meta;	2246	aio_rename "$meta~", $meta;
…		…
1953		2255
1954	return unless $self->type == cf::PLAYER;	2256	return unless $self->type == cf::PLAYER;
1955		2257
1956	if ($exit->slaying eq "/!") {	2258	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job	2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
1958	cf::sync_job { prepare_random_map $exit };	2262	cf::sync_job { prepare_random_map $exit };
1959	}	2263	}
1960		2264
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;	2266	my $hp = $exit->stats->hp;
…		…
1970	$self->goto ($slaying, $hp, $sp);	2274	$self->goto ($slaying, $hp, $sp);
1971		2275
1972	1;	2276	1;
1973	}) {	2277	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2278	$self->message ("Something went wrong deep within the crossfire server. "
1975	. "I'll try to bring you back to the map you were before. "	2279	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2280	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2281	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2282
1979	warn "ERROR in enter_exit: $@";	2283	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2284	$self->leave_link;
1981	}	2285	}
1982	})->prio (1);	2286	})->prio (1);
…		…
1998		2302
1999	utf8::encode $text;	2303	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2305	}
2002		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
2003		2319
2004	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
2005		2321
2006	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
2195	=back	2511	=back
2196		2512
2197	=cut	2513	=cut
2198		2514
2199	#############################################################################	2515	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270
2271	#############################################################################
2272	# the server's init and main functions	2516	# the server's init and main functions
2273		2517
2274	sub load_facedata {	2518	sub load_facedata($) {
2275	my $path = sprintf "%s/facedata", cf::datadir;	2519	my ($path) = @_;
2276		2520
2277	warn "loading facedata from $path\n";	2521	warn "loading facedata from $path\n";
2278		2522
2279	my $faces;	2523	my $facedata;
2280	0 < aio_load $path, $faces	2524	0 < aio_load $path, $facedata
2281	or die "$path: $!";	2525	or die "$path: $!";
2282		2526
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	2527	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		2528
2287	my $meta = delete $faces->{""};
2288	$meta->{version} == 1	2529	$facedata->{version} == 2
2289	or cf::cleanup "$path: version mismatch, cannot proceed.";	2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
2290		2531
		2532	{
		2533	my $faces = $facedata->{faceinfo};
		2534
2291	while (my ($face, $info) = each %$faces) {	2535	while (my ($face, $info) = each %$faces) {
2292	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2294	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2295	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2296	Coro::cede;	2540	Coro::cede;
2297	}	2541	}
2298		2542
2299	while (my ($face, $info) = each %$faces) {	2543	while (my ($face, $info) = each %$faces) {
2300	next unless $info->{smooth};	2544	next unless $info->{smooth};
2301	my $idx = cf::face::find $face	2545	my $idx = cf::face::find $face
2302	or next;	2546	or next;
2303	if (my $smooth = cf::face::find $info->{smooth}) {	2547	if (my $smooth = cf::face::find $info->{smooth}) {
2304	cf::face::set_smooth $idx, $smooth;	2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2305	} else {	2549	} else {
2306	warn "smooth face '$info->{smooth}' not found for face '$face'";	2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
2307	}	2551	}
2308	Coro::cede;	2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
2309	}	2565	}
2310		2566
2311	1	2567	1
2312	}	2568	}
2313		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
		2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
2314	sub reload_resources {	2590	sub reload_resources {
2315	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2591	warn "reloading resource files...\n";
2316	or die "unable to load regions file\n";#d#	2592
		2593	reload_regions;
2317	load_facedata	2594	reload_facedata;
2318	or die "unable to load facedata\n";#d#	2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
2319	}	2600	}
2320		2601
2321	sub init {	2602	sub init {
2322	reload_resources;	2603	reload_resources;
2323	}	2604	}
2324		2605
2325	sub cfg_load {	2606	sub cfg_load {
2326	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
2327	or return;	2608	or return;
2328		2609
2329	local $/;	2610	local $/;
2330	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
2331		2612
…		…
2376	},	2657	},
2377	);	2658	);
2378	}	2659	}
2379	}	2660	}
2380		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
2381	sub emergency_save() {	2700	sub emergency_save() {
2382	my $freeze_guard = cf::freeze_mainloop;	2701	my $freeze_guard = cf::freeze_mainloop;
2383		2702
2384	warn "enter emergency perl save\n";	2703	warn "enter emergency perl save\n";
2385		2704
…		…
2416		2735
2417	warn Carp::longmess "post_cleanup backtrace"	2736	warn Carp::longmess "post_cleanup backtrace"
2418	if $make_core;	2737	if $make_core;
2419	}	2738	}
2420		2739
2421	sub reload() {	2740	sub do_reload_perl() {
2422	# can/must only be called in main	2741	# can/must only be called in main
2423	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
2424	warn "can only reload from main coroutine";	2743	warn "can only reload from main coroutine";
2425	return;	2744	return;
2426	}	2745	}
…		…
2501	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
2502	for qw(cf::attachable cf::object cf::object::player cf::client 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);
2503		2822
2504	warn "unloading cf.pm \"a bit\"";	2823	warn "unloading cf.pm \"a bit\"";
2505	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
2506		2826
2507	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
2508	# and global variables created in xs	2828	# and global variables created in xs
2509	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
2510		2830
…		…
2525	warn "reattaching attachments to maps";	2845	warn "reattaching attachments to maps";
2526	reattach $_ for values %MAP;	2846	reattach $_ for values %MAP;
2527	warn "reattaching attachments to players";	2847	warn "reattaching attachments to players";
2528	reattach $_ for values %PLAYER;	2848	reattach $_ for values %PLAYER;
2529		2849
2530	warn "loading reloadable resources";
2531	reload_resources;
2532
2533	warn "leaving sync_job";	2850	warn "leaving sync_job";
2534		2851
2535	1	2852	1
2536	} or do {	2853	} or do {
2537	warn $@;	2854	warn $@;
…		…
2542	warn "reloaded";	2859	warn "reloaded";
2543	};	2860	};
2544		2861
2545	our $RELOAD_WATCHER; # used only during reload	2862	our $RELOAD_WATCHER; # used only during reload
2546		2863
		2864	sub reload_perl() {
		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	},
		2876	);
		2877	}
		2878
2547	register_command "reload" => sub {	2879	register_command "reload" => sub {
2548	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
2549		2881
2550	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
2551	$who->message ("reloading server.");	2883	$who->message ("reloading server.");
2552		2884	async { reload_perl };
2553	# doing reload synchronously and two reloads happen back-to-back,
2554	# coro crashes during coro_state_free->destroy here.
2555
2556	$RELOAD_WATCHER ||= Event->timer (
2557	reentrant => 0,
2558	after => 0,
2559	data => WF_AUTOCANCEL,
2560	cb => sub {
2561	reload;
2562	undef $RELOAD_WATCHER;
2563	},
2564	);
2565	}	2885	}
2566	};	2886	};
2567		2887
2568	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
2569		2889
2570	my $bug_warning = 0;	2890	my $bug_warning = 0;
2571		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;
2572	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2573	reentrant => 0,	2916	reentrant => 0,
2574	parked => 1,	2917	parked => 1,
2575	prio => 0,	2918	prio => 0,
2576	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
…		…
2580	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2581	unless ++$bug_warning > 10;	2924	unless ++$bug_warning > 10;
2582	return;	2925	return;
2583	}	2926	}
2584		2927
2585	$NOW = Event::time;	2928	$NOW = $tick_start = Event::time;
2586		2929
2587	cf::server_tick; # one server iteration	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
		2953	};
		2954
2588	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2589	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2590		2957
2591	if ($NOW >= $NEXT_RUNTIME_WRITE) {	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2592	$NEXT_RUNTIME_WRITE = $NOW + 10;	2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2594	write_runtime	2961	write_runtime
2595	or warn "ERROR: unable to write runtime file: $!";	2962	or warn "ERROR: unable to write runtime file: $!";
2596	};	2963	};
2597	}	2964	}
2598		2965
2599	$WAIT_FOR_TICK->broadcast;
2600	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2601
2602	# my $AFTER = Event::time;	2966	# my $AFTER = Event::time;
2603	# warn $AFTER - $NOW;#d#	2967	# warn $AFTER - $NOW;#d#
2604		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;
		2977
2605	# 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
2606	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2607		2980
2608	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2609	$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
2610	},	2990	},
2611	);	2991	);
2612		2992
2613	{	2993	{
2614	BDB::max_poll_time $TICK * 0.1;	2994	BDB::max_poll_time $TICK * 0.1;
…		…
2642		3022
2643	cf::sync_job {	3023	cf::sync_job {
2644	eval {	3024	eval {
2645	BDB::db_env_open	3025	BDB::db_env_open
2646	$DB_ENV,	3026	$DB_ENV,
2647	$BDB_ENV_DIR,	3027	$BDBDIR,
2648	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2649	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2650	0666;	3030	0666;
2651		3031
2652	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2653		3033
2654	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2655	$DB_ENV->set_lk_detect;	3035	$DB_ENV->set_lk_detect;
2656	};	3036	};
2657		3037
…		…
2673	prio => 6,	3053	prio => 6,
2674	cb => \&IO::AIO::poll_cb,	3054	cb => \&IO::AIO::poll_cb,
2675	);	3055	);
2676	}	3056	}
2677		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
2678	END { cf::emergency_save }	3099	END { cf::emergency_save }
2679		3100
2680	1	3101	1
2681		3102

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