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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		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
26	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
27		41
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	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(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	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 $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	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
92	every server tick.	129	every server tick.
93		130
94	=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
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	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.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		194
135	# 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
136	# within the Safe compartment.	196	# within the Safe compartment.
137	for my $pkg (qw(	197	for my $pkg (qw(
138	cf::global cf::attachable	198	cf::global cf::attachable
…		…
147		207
148	$Event::DIED = sub {	208	$Event::DIED = sub {
149	warn "error in event callback: @_";	209	warn "error in event callback: @_";
150	};	210	};
151		211
152	my %ext_pkg;	212	#############################################################################
153	my @exts;
154	my @hook;
155		213
156	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
157		215
158	=over 4	216	=over 4
159		217
160	=cut	218	=item dumpval $ref
161		219
		220	=cut
		221
		222	sub dumpval {
		223	eval {
		224	local $SIG{__DIE__};
		225	my $d;
		226	if (1) {
		227	$d = new Data::Dumper([$_[0]], ["*var"]);
		228	$d->Terse(1);
		229	$d->Indent(2);
		230	$d->Quotekeys(0);
		231	$d->Useqq(1);
		232	#$d->Bless(...);
		233	$d->Seen($_[1]) if @_ > 1;
		234	$d = $d->Dump();
		235	}
		236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		237	$d
		238	} || "[unable to dump $_[0]: '$@']";
		239	}
		240
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=item cf::lock_wait $string
180		252
181	sub to_json($) {	253	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
183	JSON::Syck::Dump $_[0]	255	=item my $lock = cf::lock_acquire $string
		256
		257	Wait until the given lock is available and then acquires it and returns
		258	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		259	for example when the coroutine gets canceled), the lock is automatically
		260	returned.
		261
		262	Lock names should begin with a unique identifier (for example, cf::map::find
		263	uses map_find and cf::map::load uses map_load).
		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
		269	=cut
		270
		271	our %LOCK;
		272
		273	sub lock_wait($) {
		274	my ($key) = @_;
		275
		276	# wait for lock, if any
		277	while ($LOCK{$key}) {
		278	push @{ $LOCK{$key} }, $Coro::current;
		279	Coro::schedule;
		280	}
184	}	281	}
		282
		283	sub lock_acquire($) {
		284	my ($key) = @_;
		285
		286	# wait, to be sure we are not locked
		287	lock_wait $key;
		288
		289	$LOCK{$key} = [];
		290
		291	Coro::guard {
		292	# wake up all waiters, to be on the safe side
		293	$_->ready for @{ delete $LOCK{$key} };
		294	}
		295	}
		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
		303	sub freeze_mainloop {
		304	return unless $TICK_WATCHER->is_active;
		305
		306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
		309	$TICK_WATCHER->stop;
		310	$guard
		311	}
		312
		313	=item cf::async { BLOCK }
		314
		315	Currently the same as Coro::async_pool, meaning you cannot use
		316	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		317	thing you are allowed to do is call C<prio> on it.
		318
		319	=cut
		320
		321	BEGIN { *async = \&Coro::async_pool }
185		322
186	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
187		324
188	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
191		329
192	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
195	fast or be very important.	333	fast or be very important.
…		…
198		336
199	sub sync_job(&) {	337	sub sync_job(&) {
200	my ($job) = @_;	338	my ($job) = @_;
201		339
202	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
203	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
205		345
206	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	347	# (but this is cancel-safe)
208	local $FREEZE = 1;	348	my $freeze_guard = freeze_mainloop;
209		349
210	my $busy = 1;	350	my $busy = 1;
211	my @res;	351	my @res;
212		352
213	(Coro::async {	353	(async {
214	@res = eval { $job->() };	354	@res = eval { $job->() };
215	warn $@ if $@;	355	warn $@ if $@;
216	undef $busy;	356	undef $busy;
217	})->prio (Coro::PRIO_MAX);	357	})->prio (Coro::PRIO_MAX);
218		358
219	while ($busy) {	359	while ($busy) {
220	Coro::cede_notself;	360	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	361	}
		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
223		369
224	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
225	} else {	371	} else {
226	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
227		373
228	$job->()	374	$job->()
229	}	375	}
230	}	376	}
231		377
232	=item $coro = cf::coro { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
233		379
234	Creates and returns a new coro. This coro is automcatially being canceled	380	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	381	extension calling this is being unloaded.
236		382
237	=cut	383	=cut
238		384
239	sub coro(&) {	385	sub async_ext(&) {
240	my $cb = shift;	386	my $cb = shift;
241		387
242	my $coro; $coro = async {	388	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		389
249	$coro->on_destroy (sub {	390	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	391	delete $EXT_CORO{$coro+0};
251	});	392	});
252	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
253		394
254	$coro	395	$coro
255	}	396	}
256		397
257	sub write_runtime {	398	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		399
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
261	or return;	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.
262		404
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		406
267	aio_fsync $fh	407	sub fork_call(&@) {
268	and return;	408	my ($cb, @args) = @_;
269		409
		410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
		414
		415	if (my $pid = fork) {
270	close $fh	416	close $fh2;
271	or return;
272		417
273	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
274	and return;	419	$res = Coro::Storable::thaw $res;
275		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
276	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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"
		556	}
		557
		558	=item cf::datalog type => key => value, ...
		559
		560	Log a datalog packet of the given type with the given key-value pairs.
		561
		562	=cut
		563
		564	sub datalog($@) {
		565	my ($type, %kv) = @_;
		566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	567	}
278		568
279	=back	569	=back
280		570
281	=cut	571	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		572
393	#############################################################################	573	#############################################################################
394		574
395	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
396		576
…		…
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
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	703	our @CB_MAP = ();
524		704
525	my %attachment;	705	my %attachment;
526		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
527	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
529		715
530	use sort 'stable';	716	use sort 'stable';
531		717
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
566		752
567	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		757
572	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	759	my $pkg = shift @arg;
574		760
575	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
605	}	791	}
606		792
607	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
608	} else {	794	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	796	}
611		797
612	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
613	}	799	}
614		800
…		…
616	if (ref $_[0]) {	802	if (ref $_[0]) {
617	_object_attach @_;	803	_object_attach @_;
618	} else {	804	} else {
619	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
620	}	806	}
		807	_recalc_want;
621	};	808	};
622		809
623	# all those should be optimised	810	# all those should be optimised
624	sub cf::attachable::detach {	811	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
629	reattach ($obj);	816	reattach ($obj);
630	} else {	817	} else {
631	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
632	}	819	}
		820	_recalc_want;
633	};	821	};
634		822
635	sub cf::attachable::attached {	823	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
637		825
…		…
702	# object support	890	# object support
703		891
704	sub reattach {	892	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		897
708	my $registry = $obj->registry;	898	my $registry = $obj->registry;
709		899
710	@$registry = ();	900	@$registry = ();
711		901
…		…
758	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
759		949
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	954	close $fh;
765		955
766	if (@$objs) {	956	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	962	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
774	}	964	}
775	} else {	965	} else {
776	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
807	(aio_load "$filename.pst", $av) >= 0	997	(aio_load "$filename.pst", $av) >= 0
808	or return;	998	or return;
809	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
810	}	1000	}
811		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
812	return ($data, $av);	1004	return ($data, $av);
813	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
814		1012
815	#############################################################################	1013	#############################################################################
816	# command handling &c	1014	# command handling &c
817		1015
818	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1030	}
833		1031
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1033
836	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.
837		1035
838	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
839	called.	1037	called.
840		1038
841	=cut	1039	=cut
842		1040
843	sub register_extcmd {	1041	sub register_extcmd {
844	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
845		1043
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
850	}	1045	}
851		1046
852	cf::player->attach (	1047	cf::player->attach (
853	on_command => sub {	1048	on_command => sub {
854	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
867		1062
868	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
869		1064
870	if (ref $msg) {	1065	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	1069	}
875	}	1070	}
876	} else {	1071	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		1074
880	cf::override;	1075	cf::override;
881	},	1076	},
882	);	1077	);
883		1078
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
		1083	for my $path (<$LIBDIR/*.ext>) {
		1084	next unless -r $path;
		1085
		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;
		1143	}
		1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
		1149	};
		1150	}
		1151
		1152	#############################################################################
		1153
		1154	=back
		1155
		1156	=head2 CORE EXTENSIONS
		1157
		1158	Functions and methods that extend core crossfire objects.
		1159
		1160	=cut
		1161
		1162	package cf::player;
		1163
		1164	use Coro::AIO;
		1165
		1166	=head3 cf::player
		1167
		1168	=over 4
		1169
		1170	=item cf::player::find $login
		1171
		1172	Returns the given player object, loading it if necessary (might block).
		1173
		1174	=cut
		1175
		1176	sub playerdir($) {
		1177	"$PLAYERDIR/"
		1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1179	}
		1180
		1181	sub path($) {
		1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1183
		1184	(playerdir $login) . "/playerdata"
		1185	}
		1186
		1187	sub find_active($) {
		1188	$cf::PLAYER{$_[0]}
		1189	and $cf::PLAYER{$_[0]}->active
		1190	and $cf::PLAYER{$_[0]}
		1191	}
		1192
		1193	sub exists($) {
		1194	my ($login) = @_;
		1195
		1196	$cf::PLAYER{$login}
		1197	or cf::sync_job { !aio_stat path $login }
		1198	}
		1199
		1200	sub find($) {
		1201	return $cf::PLAYER{$_[0]} || do {
		1202	my $login = $_[0];
		1203
		1204	my $guard = cf::lock_acquire "user_find:$login";
		1205
		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
		1214	my $pl = load_pl path $login
		1215	or return;
		1216	$cf::PLAYER{$login} = $pl
		1217	}
		1218	}
		1219	}
		1220
		1221	sub save($) {
		1222	my ($pl) = @_;
		1223
		1224	return if $pl->{deny_save};
		1225
		1226	my $path = path $pl;
		1227	my $guard = cf::lock_acquire "user_save:$path";
		1228
		1229	return if $pl->{deny_save};
		1230
		1231	aio_mkdir playerdir $pl, 0770;
		1232	$pl->{last_save} = $cf::RUNTIME;
		1233
		1234	$pl->save_pl ($path);
		1235	Coro::cede;
		1236	}
		1237
		1238	sub new($) {
		1239	my ($login) = @_;
		1240
		1241	my $self = create;
		1242
		1243	$self->ob->name ($login);
		1244	$self->{deny_save} = 1;
		1245
		1246	$cf::PLAYER{$login} = $self;
		1247
		1248	$self
		1249	}
		1250
		1251	=item $pl->quit_character
		1252
		1253	Nukes the player without looking back. If logged in, the connection will
		1254	be destroyed. May block for a long time.
		1255
		1256	=cut
		1257
		1258	sub quit_character {
		1259	my ($pl) = @_;
		1260
		1261	my $name = $pl->ob->name;
		1262
		1263	$pl->{deny_save} = 1;
		1264	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1265
		1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1267	$pl->deactivate;
		1268	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1269	$pl->ns->destroy if $pl->ns;
		1270
		1271	my $path = playerdir $pl;
		1272	my $temp = "$path~$cf::RUNTIME~deleting~";
		1273	aio_rename $path, $temp;
		1274	delete $cf::PLAYER{$pl->ob->name};
		1275	$pl->destroy;
		1276
		1277	my $prefix = qr<^~\Q$name\E/>;
		1278
		1279	# nuke player maps
		1280	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1281
		1282	IO::AIO::aio_rmtree $temp;
		1283	}
		1284
		1285	=item $pl->kick
		1286
		1287	Kicks a player out of the game. This destroys the connection.
		1288
		1289	=cut
		1290
		1291	sub kick {
		1292	my ($pl, $kicker) = @_;
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1295	$pl->killer ("kicked");
		1296	$pl->ns->destroy;
		1297	}
		1298
		1299	=item cf::player::list_logins
		1300
		1301	Returns am arrayref of all valid playernames in the system, can take a
		1302	while and may block, so not sync_job-capable, ever.
		1303
		1304	=cut
		1305
		1306	sub list_logins {
		1307	my $dirs = aio_readdir $PLAYERDIR
		1308	or return [];
		1309
		1310	my @logins;
		1311
		1312	for my $login (@$dirs) {
		1313	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1314	aio_read $fh, 0, 512, my $buf, 0 or next;
		1315	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1316
		1317	utf8::decode $login;
		1318	push @logins, $login;
		1319	}
		1320
		1321	\@logins
		1322	}
		1323
		1324	=item $player->maps
		1325
		1326	Returns an arrayref of map paths that are private for this
		1327	player. May block.
		1328
		1329	=cut
		1330
		1331	sub maps($) {
		1332	my ($pl) = @_;
		1333
		1334	$pl = ref $pl ? $pl->ob->name : $pl;
		1335
		1336	my $files = aio_readdir playerdir $pl
		1337	or return;
		1338
		1339	my @paths;
		1340
		1341	for (@$files) {
		1342	utf8::decode $_;
		1343	next if /\.(?:pl|pst)$/;
		1344	next unless /^$PATH_SEP/o;
		1345
		1346	push @paths, cf::map::normalise "~$pl/$_";
		1347	}
		1348
		1349	\@paths
		1350	}
		1351
		1352	=item $player->ext_reply ($msgid, %msg)
		1353
		1354	Sends an ext reply to the player.
		1355
		1356	=cut
		1357
		1358	sub ext_reply($$%) {
		1359	my ($self, $id, %msg) = @_;
		1360
		1361	$msg{msgid} = $id;
		1362
		1363	$self->send ("ext " . cf::to_json \%msg);
		1364	}
		1365
		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($) {
891	my ($path) = @_;	1393	my ($path) = @_;
892		1394
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1395	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1396
899	warn "loading '$path' into '$pkg'\n";	1397	for my $region (list) {
900		1398	if ($region->match && $path =~ $region->match) {
901	open my $fh, "<:utf8", $path	1399	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1400	if $region->specificity > $specificity;
903		1401	}
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	1402	}
933		1403
934	# remove commands	1404	$match
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}
959
960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;
963	eval {
964	load_extension $ext;
965	1
966	} or warn "$ext not loaded: $@";
967	}
968	}
969
970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007
1008	=head2 CORE EXTENSIONS
1009
1010	Functions and methods that extend core crossfire objects.
1011
1012	=head3 cf::player
1013
1014	=over 4
1015
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut
1021
1022	sub cf::player::exists($) {
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028
1029	Sends an ext reply to the player.
1030
1031	=cut
1032
1033	sub cf::player::ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;
1035
1036	$msg{msgid} = $id;
1037
1038	$self->send ("ext " . to_json \%msg);
1039	}	1405	}
1040		1406
1041	=back	1407	=back
1042
1043		1408
1044	=head3 cf::map	1409	=head3 cf::map
1045		1410
1046	=over 4	1411	=over 4
1047		1412
…		…
1050	package cf::map;	1415	package cf::map;
1051		1416
1052	use Fcntl;	1417	use Fcntl;
1053	use Coro::AIO;	1418	use Coro::AIO;
1054		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
1055	our $MAX_RESET = 7200;	1424	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1425	our $DEFAULT_RESET = 3000;
1057		1426
1058	sub generate_random_map {	1427	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1430	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1434	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1435	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1439	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1441	(cf::region::find $rmp->{region}), $rmp->{custom}
		1442	)
		1443	}
		1444
		1445	=item cf::map->register ($regex, $prio)
		1446
		1447	Register a handler for the map path matching the given regex at the
		1448	givne priority (higher is better, built-in handlers have priority 0, the
		1449	default).
		1450
		1451	=cut
		1452
		1453	sub register {
		1454	my (undef, $regex, $prio) = @_;
		1455	my $pkg = caller;
		1456
		1457	no strict;
		1458	push @{"$pkg\::ISA"}, __PACKAGE__;
		1459
		1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1461	}
		1462
		1463	# also paths starting with '/'
		1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1465
		1466	sub thawer_merge {
		1467	my ($self, $merge) = @_;
		1468
		1469	# we have to keep some variables in memory intact
		1470	local $self->{path};
		1471	local $self->{load_path};
		1472
		1473	$self->SUPER::thawer_merge ($merge);
		1474	}
		1475
		1476	sub normalise {
		1477	my ($path, $base) = @_;
		1478
		1479	$path = "$path"; # make sure its a string
		1480
		1481	$path =~ s/\.map$//;
		1482
		1483	# map plan:
		1484	#
		1485	# /! non-realised random map exit (special hack!)
		1486	# {... are special paths that are not being touched
		1487	# ?xxx/... are special absolute paths
		1488	# ?random/... random maps
		1489	# /... normal maps
		1490	# ~user/... per-player map of a specific user
		1491
		1492	$path =~ s/$PATH_SEP/\//go;
		1493
		1494	# treat it as relative path if it starts with
		1495	# something that looks reasonable
		1496	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1497	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1498
		1499	$base =~ s{[^/]+/?$}{};
		1500	$path = "$base/$path";
		1501	}
		1502
		1503	for ($path) {
		1504	redo if s{//}{/};
		1505	redo if s{/\.?/}{/};
		1506	redo if s{/[^/]+/\.\./}{/};
		1507	}
		1508
		1509	$path
		1510	}
		1511
		1512	sub new_from_path {
		1513	my (undef, $path, $base) = @_;
		1514
		1515	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1516
		1517	$path = normalise $path, $base;
		1518
		1519	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1520	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1521	my $self = bless cf::map::new, $pkg;
		1522	$self->{path} = $path; $self->path ($path);
		1523	$self->init; # pass $1 etc.
		1524	return $self;
		1525	}
		1526	}
		1527
		1528	Carp::carp "unable to resolve path '$path' (base '$base').";
		1529	()
		1530	}
		1531
		1532	sub init {
		1533	my ($self) = @_;
		1534
		1535	$self
		1536	}
		1537
		1538	sub as_string {
		1539	my ($self) = @_;
		1540
		1541	"$self->{path}"
		1542	}
		1543
		1544	# the displayed name, this is a one way mapping
		1545	sub visible_name {
		1546	&as_string
		1547	}
		1548
		1549	# the original (read-only) location
		1550	sub load_path {
		1551	my ($self) = @_;
		1552
		1553	"$MAPDIR/$self->{path}.map"
		1554	}
		1555
		1556	# the temporary/swap location
		1557	sub save_path {
		1558	my ($self) = @_;
		1559
		1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1561	"$TMPDIR/$path.map"
		1562	}
		1563
		1564	# the unique path, undef == no special unique path
		1565	sub uniq_path {
		1566	my ($self) = @_;
		1567
		1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1569	"$UNIQUEDIR/$path"
1075	}	1570	}
1076		1571
1077	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1078	# all maps in C++...	1573	# all maps in C++...
1079	sub change_all_map_light {	1574	sub change_all_map_light {
1080	my ($change) = @_;	1575	my ($change) = @_;
1081		1576
1082	$_->change_map_light ($change) for values %cf::MAP;	1577	$_->change_map_light ($change)
		1578	for grep $_->outdoor, values %cf::MAP;
1083	}	1579	}
1084		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
		1589	sub unlink_save {
		1590	my ($self) = @_;
		1591
		1592	utf8::encode (my $save = $self->save_path);
		1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1594	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1595	}
		1596
1085	sub try_load_header($) {	1597	sub load_header_from($) {
1086	my ($path) = @_;	1598	my ($self, $path) = @_;
1087		1599
1088	utf8::encode $path;	1600	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
1090	or return;	1605	or return;
1091		1606
1092	my $map = cf::map::new	1607	$self->{load_path} = $path;
		1608
		1609	1
		1610	}
		1611
		1612	sub load_header_orig {
		1613	my ($self) = @_;
		1614
		1615	$self->load_header_from ($self->load_path)
		1616	}
		1617
		1618	sub load_header_temp {
		1619	my ($self) = @_;
		1620
		1621	$self->load_header_from ($self->save_path)
		1622	}
		1623
		1624	sub prepare_temp {
		1625	my ($self) = @_;
		1626
		1627	$self->last_access ((delete $self->{last_access})
		1628	|| $cf::RUNTIME); #d#
		1629	# safety
		1630	$self->{instantiate_time} = $cf::RUNTIME
		1631	if $self->{instantiate_time} > $cf::RUNTIME;
		1632	}
		1633
		1634	sub prepare_orig {
		1635	my ($self) = @_;
		1636
		1637	$self->{load_original} = 1;
		1638	$self->{instantiate_time} = $cf::RUNTIME;
		1639	$self->last_access ($cf::RUNTIME);
		1640	$self->instantiate;
		1641	}
		1642
		1643	sub load_header {
		1644	my ($self) = @_;
		1645
		1646	if ($self->load_header_temp) {
		1647	$self->prepare_temp;
		1648	} else {
		1649	$self->load_header_orig
1093	or return;	1650	or return;
		1651	$self->prepare_orig;
		1652	}
1094		1653
1095	$map->load_header ($path)	1654	$self->{deny_reset} = 1
1096	or return;	1655	if $self->no_reset;
1097		1656
1098	$map->{load_path} = $path;	1657	$self->default_region (cf::region::find_by_path $self->{path})
		1658	unless $self->default_region;
1099		1659
1100	$map	1660	1
1101	}	1661	}
1102		1662
		1663	sub find;
1103	sub find_map {	1664	sub find {
1104	my ($path, $origin) = @_;	1665	my ($path, $origin) = @_;
1105		1666
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1667	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1668
		1669	cf::lock_wait "map_find:$path";
		1670
1111	$cf::MAP{$key} || do {	1671	$cf::MAP{$path} || do {
1112	# do it the slow way	1672	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1673	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1674	or return;
1127		1675
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1676	$map->{last_save} = $cf::RUNTIME;
1139		1677
1140	if ($map->should_reset) {	1678	$map->load_header
		1679	or return;
		1680
		1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1682	# doing this can freeze the server in a sync job, obviously
		1683	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1684	$map->reset;
1142	$map = find_map $path;	1685	undef $guard;
		1686	return find $path;
1143	}	1687	}
1144		1688
1145	$cf::MAP{$key} = $map	1689	$cf::MAP{$path} = $map
1146	}	1690	}
1147	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1148		1695
1149	sub load {	1696	sub load {
1150	my ($self) = @_;	1697	my ($self) = @_;
1151		1698
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1699	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1700
1156	my $path = $self->{path};	1701	my $path = $self->{path};
1157		1702
		1703	{
		1704	my $guard = cf::lock_acquire "map_load:$path";
		1705
		1706	return if $self->in_memory != cf::MAP_SWAPPED;
		1707
		1708	$self->in_memory (cf::MAP_LOADING);
		1709
1158	$self->alloc;	1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
1159	$self->load_objects ($self->{load_path}, 1)	1715	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1716	or return;
1161		1717
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1719	if delete $self->{load_original};
1164		1720
1165	if (my $uniq = $path->uniq_path) {	1721	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1722	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1723	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1724	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1725	$self->_load_objects ($uniq, 0);
1170	}	1726	}
1171	}	1727	}
1172		1728
		1729	Coro::cede;
1173	# now do the right thing for maps	1730	# now do the right thing for maps
1174	$self->link_multipart_objects;	1731	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1733	unless $self->difficulty;
		1734	Coro::cede;
		1735
		1736	unless ($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;
1186	$self->activate;	1743	$self->activate;
1187	}	1744	}
1188		1745
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1747	}
1191		1748
1192	sub load_map_sync {	1749	$self->post_load;
		1750	}
		1751
		1752	sub customise_for {
		1753	my ($self, $ob) = @_;
		1754
		1755	return find "~" . $ob->name . "/" . $self->{path}
		1756	if $self->per_player;
		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
		1761	$self
		1762	}
		1763
		1764	# find and load all maps in the 3x3 area around a map
		1765	sub load_diag {
		1766	my ($map) = @_;
		1767
		1768	my @diag; # diagonal neighbours
		1769
		1770	for (0 .. 3) {
		1771	my $neigh = $map->tile_path ($_)
		1772	or next;
		1773	$neigh = find $neigh, $map
		1774	or next;
		1775	$neigh->load;
		1776
		1777	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1778	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1779	}
		1780
		1781	for (@diag) {
		1782	my $neigh = find @$_
		1783	or next;
		1784	$neigh->load;
		1785	}
		1786	}
		1787
		1788	sub find_sync {
1193	my ($path, $origin) = @_;	1789	my ($path, $origin) = @_;
1194		1790
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1791	cf::sync_job { find $path, $origin }
		1792	}
1196		1793
1197	cf::sync_job {	1794	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1795	my ($map) = @_;
1199	or return;	1796
		1797	cf::sync_job { $map->load };
		1798	}
		1799
		1800	our %MAP_PREFETCH;
		1801	our $MAP_PREFETCHER = undef;
		1802
		1803	sub find_async {
		1804	my ($path, $origin) = @_;
		1805
		1806	$path = normalise $path, $origin && $origin->{path};
		1807
		1808	if (my $map = $cf::MAP{$path}) {
		1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1810	}
		1811
		1812	undef $MAP_PREFETCH{$path};
		1813	$MAP_PREFETCHER ||= cf::async {
		1814	while (%MAP_PREFETCH) {
		1815	for my $path (keys %MAP_PREFETCH) {
		1816	my $map = find $path
		1817	or next;
1200	$map->load;	1818	$map->load;
1201	$map	1819
		1820	delete $MAP_PREFETCH{$path};
		1821	}
		1822	}
		1823	undef $MAP_PREFETCHER;
1202	}	1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
1203	}	1828	}
1204		1829
1205	sub save {	1830	sub save {
1206	my ($self) = @_;	1831	my ($self) = @_;
1207		1832
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1834
1211	$self->{last_save} = $cf::RUNTIME;	1835	$self->{last_save} = $cf::RUNTIME;
1212		1836
1213	return unless $self->dirty;	1837	return unless $self->dirty;
1214		1838
		1839	my $save = $self->save_path; utf8::encode $save;
		1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1841
1215	$self->{load_path} = $save;	1842	$self->{load_path} = $save;
1216		1843
1217	return if $self->{deny_save};	1844	return if $self->{deny_save};
1218		1845
		1846	local $self->{last_access} = $self->last_access;#d#
		1847
		1848	cf::async {
		1849	$_->contr->save for $self->players;
		1850	};
		1851
1219	if ($uniq) {	1852	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1855	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1857	}
1225	}	1858	}
1226		1859
1227	sub swap_out {	1860	sub swap_out {
1228	my ($self) = @_;	1861	my ($self) = @_;
		1862
		1863	# save first because save cedes
		1864	$self->save;
		1865
		1866	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1867
1230	return if $self->players;	1868	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1869	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1870	return if $self->{deny_save};
1233		1871
1234	$self->save;
1235	$self->clear;	1872	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1873	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1874	}
1238		1875
1239	sub reset_at {	1876	sub reset_at {
1240	my ($self) = @_;	1877	my ($self) = @_;
1241		1878
1242	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1245		1881
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1884
1250	$time + $to	1885	$time + $to
1251	}	1886	}
1252		1887
1253	sub should_reset {	1888	sub should_reset {
1254	my ($self) = @_;	1889	my ($self) = @_;
1255		1890
1256	$self->reset_at <= $cf::RUNTIME	1891	$self->reset_at <= $cf::RUNTIME
1257	}	1892	}
1258		1893
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	1894	sub reset {
1281	my ($self) = @_;	1895	my ($self) = @_;
1282		1896
		1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1898
1283	return if $self->players;	1899	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		1900
1286	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
		1902
		1903	$self->in_memory (cf::MAP_SWAPPED);
		1904
		1905	# need to save uniques path
		1906	unless ($self->{deny_save}) {
		1907	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1908
		1909	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1910	if $uniq;
		1911	}
1287		1912
1288	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
1289		1916
1290	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1291		1918
1292	$self->unlink_save;	1919	$self->unlink_save;
1293	$self->destroy;	1920	$self->destroy;
1294	}	1921	}
1295		1922
1296	sub customise_for {	1923	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		1924
1299	if ($map->per_player) {	1925	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1926	my ($self) = @_;
		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
		1934	$self->{deny_save} = 1;
		1935	$self->reset_timeout (1);
		1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
		1940	$self->reset; # polite request, might not happen
		1941	}
		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() {
1301	}	1951	[
1302		1952	map {
1303	$map	1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
1304	}	1959	}
1305		1960
1306	sub emergency_save {	1961	=item $maps = cf::map::random_maps
1307	local $cf::FREEZE = 1;
1308		1962
1309	warn "enter emergency map save\n";	1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
1310		1965
1311	cf::sync_job {	1966	=cut
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};
1315		1967
1316	warn "end emergency map save\n";	1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
		1979	=item cf::map::unique_maps
		1980
		1981	Returns an arrayref of paths of all shared maps that have
		1982	instantiated unique items. May block.
		1983
		1984	=cut
		1985
		1986	sub unique_maps() {
		1987	[
		1988	map {
		1989	utf8::decode $_;
		1990	/\.map$/
		1991	? normalise $_
		1992	: ()
		1993	} @{ aio_readdir $UNIQUEDIR or [] }
		1994	]
1317	}	1995	}
1318		1996
1319	package cf;	1997	package cf;
1320		1998
1321	=back	1999	=back
1322		2000
		2001	=head3 cf::object
		2002
		2003	=cut
		2004
		2005	package cf::object;
		2006
		2007	=over 4
		2008
		2009	=item $ob->inv_recursive
		2010
		2011	Returns the inventory of the object _and_ their inventories, recursively.
		2012
		2013	=cut
		2014
		2015	sub inv_recursive_;
		2016	sub inv_recursive_ {
		2017	map { $_, inv_recursive_ $_->inv } @_
		2018	}
		2019
		2020	sub inv_recursive {
		2021	inv_recursive_ inv $_[0]
		2022	}
		2023
		2024	package cf;
		2025
		2026	=back
1323		2027
1324	=head3 cf::object::player	2028	=head3 cf::object::player
1325		2029
1326	=over 4	2030	=over 4
1327		2031
…		…
1341		2045
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2047
1344	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1346	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1349	}	2064	}
1350	}	2065	}
1351		2066
1352	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1353		2068
…		…
1363	(ref $cf::CFG{"may_$access"}	2078	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2079	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2080	: $cf::CFG{"may_$access"})
1366	}	2081	}
1367		2082
		2083	=item $player_object->enter_link
		2084
		2085	Freezes the player and moves him/her to a special map (C<{link}>).
		2086
		2087	The player should be reasonably safe there for short amounts of time. You
		2088	I<MUST> call C<leave_link> as soon as possible, though.
		2089
		2090	Will never block.
		2091
		2092	=item $player_object->leave_link ($map, $x, $y)
		2093
		2094	Moves the player out of the special C<{link}> map onto the specified
		2095	map. If the map is not valid (or omitted), the player will be moved back
		2096	to the location he/she was before the call to C<enter_link>, or, if that
		2097	fails, to the emergency map position.
		2098
		2099	Might block.
		2100
		2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
		2112
1368	sub cf::object::player::enter_link {	2113	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2114	my ($self) = @_;
1370		2115
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
		2117
		2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2119
		2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2121	if $self->map && $self->map->{path} ne "{link}";
		2122
		2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	2124	}
1379		2125
1380	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
1382		2128
		2129	return unless $self->contr->active;
		2130
1383	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1384		2132
1385	unless ($map) {	2133	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2134	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2135	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2136	$map = cf::map::find $map;
1391		2137
1392	unless ($map) {	2138	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2139	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2140	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2141	or die "FATAL: cannot load emergency map\n";
1396	}	2142	}
1397	}	2143	}
1398		2144
1399	($x, $y) = (-1, -1)	2145	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	2148	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2149	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2150	if $x <=0 && $y <= 0;
1405		2151
1406	$map->load;	2152	$map->load;
		2153	$map->load_diag;
1407		2154
		2155	return unless $self->contr->active;
1408	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1410	}	2160	}
1411		2161
1412	=item $player_object->goto_map ($map, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1413		2163
1414	=cut	2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
1415		2168
		2169	=cut
		2170
		2171	our $GOTOGEN;
		2172
1416	sub cf::object::player::goto_map {	2173	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2178
1419	$self->enter_link;	2179	$self->enter_link;
1420		2180
1421	(Coro::async {	2181	(async {
1422	$path = new cf::path $path;	2182	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
		2187	$map = $check->($map) if $check && $map;
		2188	} else {
		2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
1426		2191
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2192	$map
		2193	};
1429		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1431	})->prio (1);	2204	})->prio (1);
1432	}	2205	}
1433		2206
1434	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1435		2208
…		…
1437		2210
1438	sub parse_random_map_params {	2211	sub parse_random_map_params {
1439	my ($spec) = @_;	2212	my ($spec) = @_;
1440		2213
1441	my $rmp = { # defaults	2214	my $rmp = { # defaults
1442	xsize => 10,	2215	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
1444	};	2219	};
1445		2220
1446	for (split /\n/, $spec) {	2221	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2222	my ($k, $v) = split /\s+/, $_, 2;
1448		2223
…		…
1452	$rmp	2227	$rmp
1453	}	2228	}
1454		2229
1455	sub prepare_random_map {	2230	sub prepare_random_map {
1456	my ($exit) = @_;	2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2234
1458	# all this does is basically replace the /! path by	2235	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2236	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2237	# that depends on the exit object
1461		2238
1462	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1463		2240
1464	if ($exit->map) {	2241	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1469	}	2246	}
1470		2247
1471	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1472		2249
1473	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
1475		2253
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
1478		2258
1479	$exit->slaying ("?random/$md5");	2259	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2260	$exit->msg (undef);
1481	}	2261	}
1482	}	2262	}
…		…
1484	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1486		2266
1487	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
1488		2268
		2269	if ($exit->slaying eq "/!") {
		2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
		2279
1489	$self->enter_link;	2280	$self->enter_link;
1490		2281
1491	(Coro::async {	2282	(async {
		2283	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2284	unless (eval {
1493		2285	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2286
1500	1;	2287	1;
1501	}) {	2288	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2290	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2291	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2293
1507	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2295	$self->leave_link;
1509	}	2296	}
1510	})->prio (1);	2297	})->prio (1);
…		…
1523		2310
1524	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1526		2313
1527	utf8::encode $text;	2314	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2316	}
1530		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
1531		2330
1532	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1533		2332
1534	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1560	on_reply => sub {	2359	on_reply => sub {
1561	my ($ns, $msg) = @_;	2360	my ($ns, $msg) = @_;
1562		2361
1563	# this weird shuffling is so that direct followup queries	2362	# this weird shuffling is so that direct followup queries
1564	# get handled first	2363	# get handled first
1565	my $queue = delete $ns->{query_queue};	2364	my $queue = delete $ns->{query_queue}
		2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2366
1567	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2369
1569	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1570		2371
1571	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2373	if (@$queue) {
…		…
1576	}	2377	}
1577	}	2378	}
1578	},	2379	},
1579	);	2380	);
1580		2381
1581	=item $client->coro (\&cb)	2382	=item $client->async (\&cb)
1582		2383
1583	Create a new coroutine, running the specified callback. The coroutine will	2384	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2385	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2386	or loss of connection).
1586		2387
1587	=cut	2388	=cut
1588		2389
1589	sub cf::client::coro {	2390	sub cf::client::async {
1590	my ($self, $cb) = @_;	2391	my ($self, $cb) = @_;
1591		2392
1592	my $coro; $coro = async {	2393	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2394
1599	$coro->on_destroy (sub {	2395	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2396	delete $self->{_coro}{$coro+0};
1601	});	2397	});
1602		2398
…		…
1635		2431
1636	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1637		2433
1638	=pod	2434	=pod
1639		2435
1640	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1641		2437
1642	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1643	cf::object::player player	2439	cf::object::player player
1644	cf::player peaceful	2440	cf::player peaceful
1645	cf::map trigger	2441	cf::map trigger
…		…
1726	=back	2522	=back
1727		2523
1728	=cut	2524	=cut
1729		2525
1730	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
1731		2528
1732	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
1733		2531
1734	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
1735	currently store anything that can be serialised using Storable, which
1736	excludes objects.
1737		2533
1738	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
1739	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
1740		2537
1741	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
1742		2539
1743	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
1744		2542
1745	Return a hashref for use by the extension C<$family>, which can be
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748
1749	=item $value = cf::db_get $family => $key
1750
1751	Returns a single value from the database
1752
1753	=item cf::db_put $family => $hashref
1754
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
1782		2545
1783	my $pid;	2546	while (my ($face, $info) = each %$faces) {
1784		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1785	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1786	warn "saving database $path\n";#d# remove later	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1787	waitpid $pid, 0 if $pid;	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1788	if (0 == ($pid = fork)) {	2551	Coro::cede;
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});
1806
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}
1811
1812	sub db_get($;$) {
1813	@_ >= 2
1814	? $DB->{$_[0]}{$_[1]}
1815	: ($DB->{$_[0]} ||= { })
1816	}
1817
1818	sub db_put($$;$) {
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826
1827	cf::global->attach (
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	2552	}
1832	);
1833	}
1834		2553
1835	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
1837		2616
1838	sub cfg_load {	2617	sub cfg_load {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	2619	or return;
1841		2620
1842	local $/;	2621	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
		2623
		2624	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2625
		2626	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2627	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2628
		2629	if (exists $CFG{mlockall}) {
		2630	eval {
		2631	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2632	and die "WARNING: m(un)lockall failed: $!\n";
		2633	};
		2634	warn $@ if $@;
		2635	}
1844	}	2636	}
1845		2637
1846	sub main {	2638	sub main {
1847	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	2642	(async {
1851	Event::one_event;	2643	Event::one_event;
1852	})->();	2644	})->prio (Coro::PRIO_MAX);
1853	};	2645	};
1854		2646
1855	cfg_load;	2647	cfg_load;
1856	db_load;	2648	db_init;
1857	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
1858	Event::loop;	2652	Event::loop;
1859	}	2653	}
1860		2654
1861	#############################################################################	2655	#############################################################################
1862	# initialisation	2656	# initialisation and cleanup
1863		2657
		2658	# install some emergency cleanup handlers
		2659	BEGIN {
		2660	for my $signal (qw(INT HUP TERM)) {
		2661	Event->signal (
		2662	reentrant => 0,
		2663	data => WF_AUTOCANCEL,
		2664	signal => $signal,
		2665	prio => 0,
		2666	cb => sub {
		2667	cf::cleanup "SIG$signal";
		2668	},
		2669	);
		2670	}
		2671	}
		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
		2711	sub emergency_save() {
		2712	my $freeze_guard = cf::freeze_mainloop;
		2713
		2714	warn "enter emergency perl save\n";
		2715
		2716	cf::sync_job {
		2717	# use a peculiar iteration method to avoid tripping on perl
		2718	# refcount bugs in for. also avoids problems with players
		2719	# and maps saved/destroyed asynchronously.
		2720	warn "begin emergency player save\n";
		2721	for my $login (keys %cf::PLAYER) {
		2722	my $pl = $cf::PLAYER{$login} or next;
		2723	$pl->valid or next;
		2724	$pl->save;
		2725	}
		2726	warn "end emergency player save\n";
		2727
		2728	warn "begin emergency map save\n";
		2729	for my $path (keys %cf::MAP) {
		2730	my $map = $cf::MAP{$path} or next;
		2731	$map->valid or next;
		2732	$map->save;
		2733	}
		2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
		2739	};
		2740
		2741	warn "leave emergency perl save\n";
		2742	}
		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
1864	sub reload() {	2751	sub do_reload_perl() {
1865	# can/must only be called in main	2752	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
1868	return;	2755	return;
1869	}	2756	}
1870		2757
1871	warn "reloading...";	2758	warn "reloading...";
1872		2759
1873	local $FREEZE = 1;	2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
1875		2766
1876	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
1877	# if anything goes wrong in here, we should simply crash as we already saved	2770	# if anything goes wrong in here, we should simply crash as we already saved
1878		2771
1879	# cancel all watchers	2772	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	2775	}
1883		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
1884	# cancel all extension coros	2788	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	2790	%EXT_CORO = ();
1887		2791
1888	# unload all extensions	2792	warn "removing commands";
1889	for (@exts) {	2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	2800	warn "... unloading $pkg";
1891	unload_extension $_;	2801
		2802	if (my $cb = $pkg->can ("unload")) {
		2803	eval {
		2804	$cb->($pkg);
		2805	1
		2806	} or warn "$pkg unloaded, but with errors: $@";
1892	}	2807	}
1893		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
1894	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		2816
1898	warn "removing <$k>";	2817	warn "... unloading $k";
1899	delete $INC{$k};	2818	delete $INC{$k};
1900		2819
1901	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
1903		2822
…		…
1906	}	2825	}
1907		2826
1908	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
1909	}	2828	}
1910		2829
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		2833
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
1924		2837
1925	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
1926	# and global variables created in xs	2839	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
1928		2841
1929	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
1930	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
1931	require cf;	2845	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		2847
1934	# load config and database again	2848	warn "loading config and database again";
1935	cf::cfg_load;	2849	cf::cfg_load;
1936	cf::db_load;
1937		2850
1938	# load extensions
1939	warn "load extensions";	2851	warn "loading extensions";
1940	cf::load_extensions;	2852	cf::load_extensions;
1941		2853
1942	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
1943	warn "reattach";	2855	_global_reattach; # objects, sockets
1944	_global_reattach;	2856	warn "reattaching attachments to maps";
1945	};	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
1946		2860
1947	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
1948	warn $@;	2865	warn $@;
1949	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
1950	exit 1;	2867	exit 1;
1951	}	2868	};
1952		2869
1953	warn "reloaded successfully";	2870	warn "reloaded";
1954	};	2871	};
1955		2872
1956	#############################################################################	2873	our $RELOAD_WATCHER; # used only during reload
1957		2874
1958	unless ($LINK_MAP) {	2875	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
1960		2878
1961	$LINK_MAP->width (41);	2879	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	2880	reentrant => 0,
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,	2881	after => 0,
		2882	data => WF_AUTOCANCEL,
1971	cb => sub {	2883	cb => sub {
1972	$_[0]->w->cancel;	2884	do_reload_perl;
1973		2885	undef $RELOAD_WATCHER;
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});	2886	},
1992		2887	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	2888	}
1998
1999	register "<global>", __PACKAGE__;
2000		2889
2001	register_command "reload" => sub {	2890	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2003		2892
2004	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
2008	}	2896	}
2009	};	2897	};
2010		2898
2011	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2012		2900
		2901	my $bug_warning = 0;
		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
2013	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
2015	prio => 0,	2929	prio => 0,
2016	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2018	cb => sub {	2932	cb => sub {
2019	unless ($FREEZE) {	2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
		2939	$NOW = $tick_start = Event::time;
		2940
2020	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2022	}	2964	};
2023		2965
		2966	$RUNTIME += $TICK;
2024	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2025		2968
		2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
		2988
2026	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		2991
2029	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
2031	},	3001	},
2032	);	3002	);
2033		3003
		3004	{
2034	IO::AIO::max_poll_time $TICK * 0.2;	3005	BDB::max_poll_time $TICK * 0.1;
2035		3006	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	3007	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	3008	fd => BDB::poll_fileno,
2038	poll => 'r',	3009	poll => 'r',
2039	prio => 5,	3010	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	3011	data => WF_AUTOCANCEL,
2046	after => 0,	3012	cb => \&BDB::poll_cb,
2047	interval => 10,	3013	);
2048	cb => sub {	3014	BDB::min_parallel 8;
2049	(Coro::unblock_sub {	3015
2050	write_runtime	3016	BDB::set_sync_prepare {
2051	or warn "ERROR: unable to write runtime file: $!";	3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
2052	})->();	3050	};
2053	},	3051	}
2054	);	3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
		3058	IO::AIO::max_poll_time $TICK * 0.1;
		3059	$AIO_POLL_WATCHER = Event->io (
		3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
		3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
		3109
		3110	END { cf::emergency_save }
2055		3111
2056	1	3112	1
2057		3113

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