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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		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 ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
191		329
192	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
195	fast or be very important.	333	fast or be very important.
…		…
197	=cut	335	=cut
198		336
199	sub sync_job(&) {	337	sub sync_job(&) {
200	my ($job) = @_;	338	my ($job) = @_;
201		339
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
		343	# this is the main coro, too bad, we have to block
		344	# till the operation succeeds, freezing the server :/
		345
212	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	347	# (but this is cancel-safe)
		348	my $freeze_guard = freeze_mainloop;
		349
		350	my $busy = 1;
		351	my @res;
		352
		353	(async {
		354	@res = eval { $job->() };
		355	warn $@ if $@;
		356	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	357	})->prio (Coro::PRIO_MAX);
		358
215	while ($busy) {	359	while ($busy) {
216	Coro::cede_notself;	360	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	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
		369
		370	wantarray ? @res : $res[0]
219	} else {	371	} else {
220	$coro->join;	372	# we are in another coroutine, how wonderful, everything just works
		373
		374	$job->()
221	}	375	}
222
223	wantarray ? @res : $res[0]
224	}	376	}
225		377
226	=item $coro = cf::coro { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
227		379
228	Creates and returns a new coro. This coro is automcatially being canceled	380	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	381	extension calling this is being unloaded.
230		382
231	=cut	383	=cut
232		384
233	sub coro(&) {	385	sub async_ext(&) {
234	my $cb = shift;	386	my $cb = shift;
235		387
236	my $coro; $coro = async {	388	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		389
243	$coro->on_destroy (sub {	390	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	391	delete $EXT_CORO{$coro+0};
245	});	392	});
246	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
247		394
248	$coro	395	$coro
249	}	396	}
250		397
251	sub write_runtime {	398	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		399
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
255	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.
256		404
257	my $value = $cf::RUNTIME;	405	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		406
261	aio_fsync $fh	407	sub fork_call(&@) {
262	and return;	408	my ($cb, @args) = @_;
263		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) {
264	close $fh	416	close $fh2;
265	or return;
266		417
267	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
268	and return;	419	$res = Coro::Storable::thaw $res;
269		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
270	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
271	}	567	}
272		568
273	=back	569	=back
274		570
275	=cut	571	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		572
387	#############################################################################	573	#############################################################################
388		574
389	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
390		576
…		…
392	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")
393	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
394		580
395	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>
396	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
397	crossfire+).	583	Crossfire TRT).
398		584
399	=over 4	585	=over 4
400		586
401	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
402		588
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	703	our @CB_MAP = ();
518		704
519	my %attachment;	705	my %attachment;
520		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
521	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
523		715
524	use sort 'stable';	716	use sort 'stable';
525		717
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
560		752
561	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		757
566	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	759	my $pkg = shift @arg;
568		760
569	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
599	}	791	}
600		792
601	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
602	} else {	794	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	796	}
605		797
606	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
607	}	799	}
608		800
…		…
610	if (ref $_[0]) {	802	if (ref $_[0]) {
611	_object_attach @_;	803	_object_attach @_;
612	} else {	804	} else {
613	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
614	}	806	}
		807	_recalc_want;
615	};	808	};
616		809
617	# all those should be optimised	810	# all those should be optimised
618	sub cf::attachable::detach {	811	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
623	reattach ($obj);	816	reattach ($obj);
624	} else {	817	} else {
625	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
626	}	819	}
		820	_recalc_want;
627	};	821	};
628		822
629	sub cf::attachable::attached {	823	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
631		825
…		…
696	# object support	890	# object support
697		891
698	sub reattach {	892	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		897
702	my $registry = $obj->registry;	898	my $registry = $obj->registry;
703		899
704	@$registry = ();	900	@$registry = ();
705		901
…		…
752	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
753		949
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	954	close $fh;
759		955
760	if (@$objs) {	956	if (@$objs) {
761	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) {
762	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	962	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
768	}	964	}
769	} else {	965	} else {
770	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
798	or return;	994	or return;
799		995
800	unless (aio_stat "$filename.pst") {	996	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	997	(aio_load "$filename.pst", $av) >= 0
802	or return;	998	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1000	}
805		1001
		1002	warn sprintf "loading %s (%d)\n",
		1003	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1004	return ($data, $av);
807	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
808		1012
809	#############################################################################	1013	#############################################################################
810	# command handling &c	1014	# command handling &c
811		1015
812	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1030	}
827		1031
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1033
830	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.
831		1035
832	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
833	called.	1037	called.
834		1038
835	=cut	1039	=cut
836		1040
837	sub register_extcmd {	1041	sub register_extcmd {
838	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
839		1043
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
844	}	1045	}
845		1046
846	cf::player->attach (	1047	cf::player->attach (
847	on_command => sub {	1048	on_command => sub {
848	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
861		1062
862	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
863		1064
864	if (ref $msg) {	1065	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	1069	}
869	}	1070	}
870	} else {	1071	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		1074
874	cf::override;	1075	cf::override;
875	},	1076	},
876	);	1077	);
877		1078
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	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($) {
885	my ($path) = @_;	1393	my ($path) = @_;
886		1394
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1395	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1396
893	warn "loading '$path' into '$pkg'\n";	1397	for my $region (list) {
894		1398	if ($region->match && $path =~ $region->match) {
895	open my $fh, "<:utf8", $path	1399	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1400	if $region->specificity > $specificity;
897		1401	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1402	}
927		1403
928	# remove commands	1404	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1405	}
1034		1406
1035	=back	1407	=back
1036
1037		1408
1038	=head3 cf::map	1409	=head3 cf::map
1039		1410
1040	=over 4	1411	=over 4
1041		1412
…		…
1044	package cf::map;	1415	package cf::map;
1045		1416
1046	use Fcntl;	1417	use Fcntl;
1047	use Coro::AIO;	1418	use Coro::AIO;
1048		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
1049	our $MAX_RESET = 7200;	1424	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1425	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1426
1054	sub generate_random_map {	1427	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1430	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1434	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1435	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$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},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(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"
1071	}	1570	}
1072		1571
1073	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1074	# all maps in C++...	1573	# all maps in C++...
1075	sub change_all_map_light {	1574	sub change_all_map_light {
1076	my ($change) = @_;	1575	my ($change) = @_;
1077		1576
1078	$_->change_map_light ($change) for values %cf::MAP;	1577	$_->change_map_light ($change)
		1578	for grep $_->outdoor, values %cf::MAP;
1079	}	1579	}
1080		1580
		1581	sub decay_objects {
		1582	my ($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
1081	sub try_load_header($) {	1597	sub load_header_from($) {
1082	my ($path) = @_;	1598	my ($self, $path) = @_;
1083		1599
1084	utf8::encode $path;	1600	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
1086	or return;	1605	or return;
1087		1606
1088	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
1089	or return;	1650	or return;
		1651	$self->prepare_orig;
		1652	}
1090		1653
1091	$map->load_header ($path)	1654	$self->{deny_reset} = 1
1092	or return;	1655	if $self->no_reset;
1093		1656
1094	$map->{load_path} = $path;	1657	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1658	unless $self->default_region;
1096		1659
1097	$map	1660	1
1098	}	1661	}
1099		1662
		1663	sub find;
1100	sub find_map {	1664	sub find {
1101	my ($path, $origin) = @_;	1665	my ($path, $origin) = @_;
1102		1666
1103	#warn "find_map<$path,$origin>\n";#d#	1667	$path = normalise $path, $origin && $origin->path;
1104		1668
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1669	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1670
1108	$cf::MAP{$key} || do {	1671	$cf::MAP{$path} || do {
1109	# do it the slow way	1672	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1673	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1674	or return;
1124		1675
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1676	$map->{last_save} = $cf::RUNTIME;
1136		1677
1137	$map->reset if $map->should_reset;	1678	$map->load_header
		1679	or return;
1138		1680
		1681	if ($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;
		1684	$map->reset;
		1685	undef $guard;
		1686	return find $path;
		1687	}
		1688
1139	$cf::MAP{$key} = $map	1689	$cf::MAP{$path} = $map
1140	}	1690	}
1141	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1142		1695
1143	sub load {	1696	sub load {
1144	my ($self) = @_;	1697	my ($self) = @_;
1145		1698
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1699	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		1700
1150	my $path = $self->{path};	1701	my $path = $self->{path};
1151		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
1152	$self->alloc;	1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
1153	$self->load_objects ($self->{load_path}, 1)	1715	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1716	or return;
1155		1717
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1719	if delete $self->{load_original};
1157		1720
1158	if (my $uniq = $path->uniq_path) {	1721	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1722	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1723	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1724	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1725	$self->_load_objects ($uniq, 0);
1163	}	1726	}
1164	}	1727	}
1165		1728
		1729	Coro::cede;
1166	# now do the right thing for maps	1730	# now do the right thing for maps
1167	$self->link_multipart_objects;	1731	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1178	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;
1179	$self->activate;	1743	$self->activate;
1180	}	1744	}
1181		1745
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1747	}
1184		1748
1185	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	$neigh->load;
		1785	}
		1786	}
		1787
		1788	sub find_sync {
1186	my ($path, $origin) = @_;	1789	my ($path, $origin) = @_;
1187		1790
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1791	cf::sync_job { find $path, $origin }
		1792	}
1189		1793
1190	cf::sync_job {	1794	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1795	my ($map) = @_;
1192	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;
1193	$map->load;	1818	$map->load;
1194	$map	1819
		1820	delete $MAP_PREFETCH{$path};
		1821	}
		1822	}
		1823	undef $MAP_PREFETCHER;
1195	}	1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
1196	}	1828	}
1197		1829
1198	sub save {	1830	sub save {
1199	my ($self) = @_;	1831	my ($self) = @_;
1200		1832
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1834
1204	$self->{last_save} = $cf::RUNTIME;	1835	$self->{last_save} = $cf::RUNTIME;
1205		1836
1206	return unless $self->dirty;	1837	return unless $self->dirty;
1207		1838
		1839	my $save = $self->save_path; utf8::encode $save;
		1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1841
1208	$self->{load_path} = $save;	1842	$self->{load_path} = $save;
1209		1843
1210	return if $self->{deny_save};	1844	return if $self->{deny_save};
1211		1845
1212	warn "saving map ", $self->path;	1846	local $self->{last_access} = $self->last_access;#d#
		1847
		1848	cf::async {
		1849	$_->contr->save for $self->players;
		1850	};
1213		1851
1214	if ($uniq) {	1852	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1855	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1857	}
1220	}	1858	}
1221		1859
1222	sub swap_out {	1860	sub swap_out {
1223	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;
1224		1867
1225	return if $self->players;	1868	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1869	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1870	return if $self->{deny_save};
1228		1871
1229	$self->save;
1230	$self->clear;	1872	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1873	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1874	}
1233		1875
		1876	sub reset_at {
		1877	my ($self) = @_;
		1878
		1879	# TODO: safety, remove and allow resettable per-player maps
		1880	return 1e99 if $self->{deny_reset};
		1881
		1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1884
		1885	$time + $to
		1886	}
		1887
1234	sub should_reset {	1888	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1889	my ($self) = @_;
1251		1890
1252	utf8::encode (my $save = $self->{path}->save_path);	1891	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1892	}
1256		1893
1257	sub reset {	1894	sub reset {
1258	my ($self) = @_;	1895	my ($self) = @_;
1259		1896
		1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1898
1260	return if $self->players;	1899	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		1900
1263	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	}
1264		1912
1265	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
1266		1916
1267	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1268		1918
1269	$self->unlink_save;	1919	$self->unlink_save;
1270	$self->destroy;	1920	$self->destroy;
1271	}	1921	}
1272		1922
1273	sub customise_for {	1923	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1924
1276	if ($map->per_player) {	1925	sub nuke {
1277	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() {
1278	}	1951	[
1279		1952	map {
1280	$map	1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
1281	}	1959	}
1282		1960
1283	sub emergency_save {	1961	=item $maps = cf::map::random_maps
1284	local $cf::FREEZE = 1;
1285		1962
1286	warn "enter emergency map save\n";	1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
1287		1965
1288	cf::sync_job {	1966	=cut
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};
1292		1967
1293	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	]
1294	}	1995	}
1295		1996
1296	package cf;	1997	package cf;
1297		1998
1298	=back	1999	=back
1299		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
1300		2027
1301	=head3 cf::object::player	2028	=head3 cf::object::player
1302		2029
1303	=over 4	2030	=over 4
1304		2031
…		…
1340	(ref $cf::CFG{"may_$access"}	2067	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2068	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2069	: $cf::CFG{"may_$access"})
1343	}	2070	}
1344		2071
		2072	=item $player_object->enter_link
		2073
		2074	Freezes the player and moves him/her to a special map (C<{link}>).
		2075
		2076	The player should be reasonably safe there for short amounts of time. You
		2077	I<MUST> call C<leave_link> as soon as possible, though.
		2078
		2079	Will never block.
		2080
		2081	=item $player_object->leave_link ($map, $x, $y)
		2082
		2083	Moves the player out of the special C<{link}> map onto the specified
		2084	map. If the map is not valid (or omitted), the player will be moved back
		2085	to the location he/she was before the call to C<enter_link>, or, if that
		2086	fails, to the emergency map position.
		2087
		2088	Might block.
		2089
		2090	=cut
		2091
		2092	sub link_map {
		2093	unless ($LINK_MAP) {
		2094	$LINK_MAP = cf::map::find "{link}"
		2095	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2096	$LINK_MAP->load;
		2097	}
		2098
		2099	$LINK_MAP
		2100	}
		2101
1345	sub cf::object::player::enter_link {	2102	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2103	my ($self) = @_;
1347		2104
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
		2106
		2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2108
		2109	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2110	if $self->map && $self->map->{path} ne "{link}";
		2111
		2112	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	2113	}
1356		2114
1357	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
1359		2117
		2118	return unless $self->contr->active;
		2119
1360	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1361		2121
1362	unless ($map) {	2122	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2123	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2124	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2125	$map = cf::map::find $map;
1368		2126
1369	unless ($map) {	2127	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2128	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2129	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2130	or die "FATAL: cannot load emergency map\n";
1373	}	2131	}
1374	}	2132	}
1375		2133
1376	($x, $y) = (-1, -1)	2134	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	2137	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2138	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2139	if $x <=0 && $y <= 0;
1382		2140
1383	$map->load;	2141	$map->load;
		2142	$map->load_diag;
1384		2143
		2144	return unless $self->contr->active;
1385	$self->activate_recursive;	2145	$self->activate_recursive;
		2146
		2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1387	}	2149	}
1388		2150
1389	=item $player_object->goto_map ($map, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1390		2152
1391	=cut	2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
1392		2157
		2158	=cut
		2159
		2160	our $GOTOGEN;
		2161
1393	sub cf::object::player::goto_map {	2162	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2167
1396	$self->enter_link;	2168	$self->enter_link;
1397		2169
1398	(Coro::async {	2170	(async {
1399	$path = new cf::path $path;	2171	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2179	}
1403		2180
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2181	$map
		2182	};
1406		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2186	LOG llevError | logBacktrace, Carp::longmess $@;
		2187	}
		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1408	})->prio (1);	2193	})->prio (1);
1409	}	2194	}
1410		2195
1411	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
1412		2197
…		…
1414		2199
1415	sub parse_random_map_params {	2200	sub parse_random_map_params {
1416	my ($spec) = @_;	2201	my ($spec) = @_;
1417		2202
1418	my $rmp = { # defaults	2203	my $rmp = { # defaults
1419	xsize => 10,	2204	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2205	ysize => (cf::rndm 15, 40),
		2206	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2207	#layout => string,
1421	};	2208	};
1422		2209
1423	for (split /\n/, $spec) {	2210	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2211	my ($k, $v) = split /\s+/, $_, 2;
1425		2212
…		…
1429	$rmp	2216	$rmp
1430	}	2217	}
1431		2218
1432	sub prepare_random_map {	2219	sub prepare_random_map {
1433	my ($exit) = @_;	2220	my ($exit) = @_;
		2221
		2222	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2223
1435	# all this does is basically replace the /! path by	2224	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2225	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2226	# that depends on the exit object
1438		2227
1439	my $rmp = parse_random_map_params $exit->msg;	2228	my $rmp = parse_random_map_params $exit->msg;
1440		2229
1441	if ($exit->map) {	2230	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2231	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2232	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2233	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2234	$rmp->{origin_y} = $exit->y;
1446	}	2235	}
1447		2236
1448	$rmp->{random_seed} ||= $exit->random_seed;	2237	$rmp->{random_seed} ||= $exit->random_seed;
1449		2238
1450	my $data = cf::to_json $rmp;	2239	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2240	my $md5 = Digest::MD5::md5_hex $data;
		2241	my $meta = "$RANDOMDIR/$md5.meta";
1452		2242
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2243	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2244	aio_write $fh, 0, (length $data), $data, 0;
		2245	undef $fh;
		2246	aio_rename "$meta~", $meta;
1455		2247
1456	$exit->slaying ("?random/$md5");	2248	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2249	$exit->msg (undef);
1458	}	2250	}
1459	}	2251	}
…		…
1461	sub cf::object::player::enter_exit {	2253	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2254	my ($self, $exit) = @_;
1463		2255
1464	return unless $self->type == cf::PLAYER;	2256	return unless $self->type == cf::PLAYER;
1465		2257
		2258	if ($exit->slaying eq "/!") {
		2259	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2260	# the problem is that $exit might not survive long enough
		2261	# so it needs to be done right now, right here
		2262	cf::sync_job { prepare_random_map $exit };
		2263	}
		2264
		2265	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2266	my $hp = $exit->stats->hp;
		2267	my $sp = $exit->stats->sp;
		2268
1466	$self->enter_link;	2269	$self->enter_link;
1467		2270
1468	(Coro::async {	2271	(async {
		2272	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2273	unless (eval {
1470		2274	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2275
1477	1;	2276	1;
1478	}) {	2277	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2278	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2279	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2280	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2281	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2282
1484	warn "ERROR in enter_exit: $@";	2283	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2284	$self->leave_link;
1486	}	2285	}
1487	})->prio (1);	2286	})->prio (1);
…		…
1500		2299
1501	sub cf::client::send_drawinfo {	2300	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2301	my ($self, $text, $flags) = @_;
1503		2302
1504	utf8::encode $text;	2303	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2304	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2305	}
1507		2306
		2307	=item $client->ext_event ($type, %msg)
		2308
		2309	Sends an exti event to the client.
		2310
		2311	=cut
		2312
		2313	sub cf::client::ext_event($$%) {
		2314	my ($self, $type, %msg) = @_;
		2315
		2316	$msg{msgtype} = "event_$type";
		2317	$self->send_packet ("ext " . cf::to_json \%msg);
		2318	}
1508		2319
1509	=item $success = $client->query ($flags, "text", \&cb)	2320	=item $success = $client->query ($flags, "text", \&cb)
1510		2321
1511	Queues a query to the client, calling the given callback with	2322	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2323	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1537	on_reply => sub {	2348	on_reply => sub {
1538	my ($ns, $msg) = @_;	2349	my ($ns, $msg) = @_;
1539		2350
1540	# this weird shuffling is so that direct followup queries	2351	# this weird shuffling is so that direct followup queries
1541	# get handled first	2352	# get handled first
1542	my $queue = delete $ns->{query_queue};	2353	my $queue = delete $ns->{query_queue}
		2354	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2355
1544	(shift @$queue)->[1]->($msg);	2356	(shift @$queue)->[1]->($msg);
		2357	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2358
1546	push @{ $ns->{query_queue} }, @$queue;	2359	push @{ $ns->{query_queue} }, @$queue;
1547		2360
1548	if (@{ $ns->{query_queue} } == @$queue) {	2361	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2362	if (@$queue) {
…		…
1553	}	2366	}
1554	}	2367	}
1555	},	2368	},
1556	);	2369	);
1557		2370
1558	=item $client->coro (\&cb)	2371	=item $client->async (\&cb)
1559		2372
1560	Create a new coroutine, running the specified callback. The coroutine will	2373	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2374	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2375	or loss of connection).
1563		2376
1564	=cut	2377	=cut
1565		2378
1566	sub cf::client::coro {	2379	sub cf::client::async {
1567	my ($self, $cb) = @_;	2380	my ($self, $cb) = @_;
1568		2381
1569	my $coro; $coro = async {	2382	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2383
1576	$coro->on_destroy (sub {	2384	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2385	delete $self->{_coro}{$coro+0};
1578	});	2386	});
1579		2387
…		…
1612		2420
1613	# here we export the classes and methods available to script code	2421	# here we export the classes and methods available to script code
1614		2422
1615	=pod	2423	=pod
1616		2424
1617	The following fucntions and emthods are available within a safe environment:	2425	The following functions and methods are available within a safe environment:
1618		2426
1619	cf::object contr pay_amount pay_player map	2427	cf::object contr pay_amount pay_player map
1620	cf::object::player player	2428	cf::object::player player
1621	cf::player peaceful	2429	cf::player peaceful
1622	cf::map trigger	2430	cf::map trigger
…		…
1703	=back	2511	=back
1704		2512
1705	=cut	2513	=cut
1706		2514
1707	#############################################################################	2515	#############################################################################
		2516	# the server's init and main functions
1708		2517
1709	=head2 EXTENSION DATABASE SUPPORT	2518	sub load_facedata($) {
		2519	my ($path) = @_;
1710		2520
1711	Crossfire maintains a very simple database for extension use. It can	2521	warn "loading facedata from $path\n";
1712	currently store anything that can be serialised using Storable, which
1713	excludes objects.
1714		2522
1715	The parameter C<$family> should best start with the name of the extension	2523	my $facedata;
1716	using it, it should be unique.	2524	0 < aio_load $path, $facedata
		2525	or die "$path: $!";
1717		2526
1718	=over 4	2527	$facedata = Coro::Storable::thaw $facedata;
1719		2528
1720	=item $hashref = cf::db_get $family	2529	$facedata->{version} == 2
		2530	or cf::cleanup "$path: version mismatch, cannot proceed.";
1721		2531
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key
1727
1728	Returns a single value from the database
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}	2532	{
		2533	my $faces = $facedata->{faceinfo};
1759		2534
1760	my $pid;	2535	while (my ($face, $info) = each %$faces) {
1761		2536	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1762	sub db_save() {	2537	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1763	warn "saving database $path\n";#d# remove later	2538	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1764	waitpid $pid, 0 if $pid;	2539	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1765	if (0 == ($pid = fork)) {	2540	Coro::cede;
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2541	}
1809	);
1810	}
1811		2542
1812	#############################################################################	2543	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	2544	next unless $info->{smooth};
		2545	my $idx = cf::face::find $face
		2546	or next;
		2547	if (my $smooth = cf::face::find $info->{smooth}) {
		2548	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2549	} else {
		2550	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2551	}
		2552	Coro::cede;
		2553	}
		2554	}
		2555
		2556	{
		2557	my $anims = $facedata->{animinfo};
		2558
		2559	while (my ($anim, $info) = each %$anims) {
		2560	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2561	Coro::cede;
		2562	}
		2563
		2564	cf::anim::invalidate_all; # d'oh
		2565	}
		2566
		2567	1
		2568	}
		2569
		2570	sub reload_regions {
		2571	load_resource_file "$MAPDIR/regions"
		2572	or die "unable to load regions file\n";
		2573	}
		2574
		2575	sub reload_facedata {
		2576	load_facedata "$DATADIR/facedata"
		2577	or die "unable to load facedata\n";
		2578	}
		2579
		2580	sub reload_archetypes {
		2581	load_resource_file "$DATADIR/archetypes"
		2582	or die "unable to load archetypes\n";
		2583	}
		2584
		2585	sub reload_treasures {
		2586	load_resource_file "$DATADIR/treasures"
		2587	or die "unable to load treasurelists\n";
		2588	}
		2589
		2590	sub reload_resources {
		2591	warn "reloading resource files...\n";
		2592
		2593	reload_regions;
		2594	reload_facedata;
		2595	#reload_archetypes;#d#
		2596	reload_archetypes;
		2597	reload_treasures;
		2598
		2599	warn "finished reloading resource files\n";
		2600	}
		2601
		2602	sub init {
		2603	reload_resources;
		2604	}
1814		2605
1815	sub cfg_load {	2606	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2607	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	2608	or return;
1818		2609
1819	local $/;	2610	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2611	*CFG = YAML::Syck::Load <$fh>;
		2612
		2613	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2614
		2615	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2616	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2617
		2618	if (exists $CFG{mlockall}) {
		2619	eval {
		2620	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2621	and die "WARNING: m(un)lockall failed: $!\n";
		2622	};
		2623	warn $@ if $@;
		2624	}
1821	}	2625	}
1822		2626
1823	sub main {	2627	sub main {
1824	# we must not ever block the main coroutine	2628	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2629	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2630	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2631	(async {
1828	Event::one_event;	2632	Event::one_event;
1829	})->();	2633	})->prio (Coro::PRIO_MAX);
1830	};	2634	};
1831		2635
1832	cfg_load;	2636	cfg_load;
1833	db_load;	2637	db_init;
1834	load_extensions;	2638	load_extensions;
		2639
		2640	$TICK_WATCHER->start;
1835	Event::loop;	2641	Event::loop;
1836	}	2642	}
1837		2643
1838	#############################################################################	2644	#############################################################################
1839	# initialisation	2645	# initialisation and cleanup
1840		2646
		2647	# install some emergency cleanup handlers
		2648	BEGIN {
		2649	for my $signal (qw(INT HUP TERM)) {
		2650	Event->signal (
		2651	reentrant => 0,
		2652	data => WF_AUTOCANCEL,
		2653	signal => $signal,
		2654	prio => 0,
		2655	cb => sub {
		2656	cf::cleanup "SIG$signal";
		2657	},
		2658	);
		2659	}
		2660	}
		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
		2700	sub emergency_save() {
		2701	my $freeze_guard = cf::freeze_mainloop;
		2702
		2703	warn "enter emergency perl save\n";
		2704
		2705	cf::sync_job {
		2706	# use a peculiar iteration method to avoid tripping on perl
		2707	# refcount bugs in for. also avoids problems with players
		2708	# and maps saved/destroyed asynchronously.
		2709	warn "begin emergency player save\n";
		2710	for my $login (keys %cf::PLAYER) {
		2711	my $pl = $cf::PLAYER{$login} or next;
		2712	$pl->valid or next;
		2713	$pl->save;
		2714	}
		2715	warn "end emergency player save\n";
		2716
		2717	warn "begin emergency map save\n";
		2718	for my $path (keys %cf::MAP) {
		2719	my $map = $cf::MAP{$path} or next;
		2720	$map->valid or next;
		2721	$map->save;
		2722	}
		2723	warn "end emergency map save\n";
		2724
		2725	warn "begin emergency database checkpoint\n";
		2726	BDB::db_env_txn_checkpoint $DB_ENV;
		2727	warn "end emergency database checkpoint\n";
		2728	};
		2729
		2730	warn "leave emergency perl save\n";
		2731	}
		2732
		2733	sub post_cleanup {
		2734	my ($make_core) = @_;
		2735
		2736	warn Carp::longmess "post_cleanup backtrace"
		2737	if $make_core;
		2738	}
		2739
1841	sub reload() {	2740	sub do_reload_perl() {
1842	# can/must only be called in main	2741	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2742	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2743	warn "can only reload from main coroutine";
1845	return;	2744	return;
1846	}	2745	}
1847		2746
1848	warn "reloading...";	2747	warn "reloading...";
1849		2748
1850	local $FREEZE = 1;	2749	warn "entering sync_job";
		2750
		2751	cf::sync_job {
		2752	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2753	cf::emergency_save;
		2754	cf::write_runtime; # external watchdog should not bark
1852		2755
1853	eval {	2756	warn "syncing database to disk";
		2757	BDB::db_env_txn_checkpoint $DB_ENV;
		2758
1854	# if anything goes wrong in here, we should simply crash as we already saved	2759	# if anything goes wrong in here, we should simply crash as we already saved
1855		2760
1856	# cancel all watchers	2761	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2762	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2763	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2764	}
1860		2765
		2766	warn "flushing outstanding aio requests";
		2767	for (;;) {
		2768	BDB::flush;
		2769	IO::AIO::flush;
		2770	Coro::cede;
		2771	last unless IO::AIO::nreqs || BDB::nreqs;
		2772	warn "iterate...";
		2773	}
		2774
		2775	++$RELOAD;
		2776
1861	# cancel all extension coros	2777	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2778	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2779	%EXT_CORO = ();
1864		2780
1865	# unload all extensions	2781	warn "removing commands";
1866	for (@exts) {	2782	%COMMAND = ();
		2783
		2784	warn "removing ext commands";
		2785	%EXTCMD = ();
		2786
		2787	warn "unloading/nuking all extensions";
		2788	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2789	warn "... unloading $pkg";
1868	unload_extension $_;	2790
		2791	if (my $cb = $pkg->can ("unload")) {
		2792	eval {
		2793	$cb->($pkg);
		2794	1
		2795	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2796	}
1870		2797
		2798	warn "... nuking $pkg";
		2799	Symbol::delete_package $pkg;
		2800	}
		2801
1871	# unload all modules loaded from $LIBDIR	2802	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2803	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2805
1875	warn "removing <$k>";	2806	warn "... unloading $k";
1876	delete $INC{$k};	2807	delete $INC{$k};
1877		2808
1878	$k =~ s/\.pm$//;	2809	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2810	$k =~ s/\//::/g;
1880		2811
…		…
1883	}	2814	}
1884		2815
1885	Symbol::delete_package $k;	2816	Symbol::delete_package $k;
1886	}	2817	}
1887		2818
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2819	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2820	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2822
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2823	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2824	delete $INC{"cf.pm"};
		2825	delete $INC{"cf/pod.pm"};
1901		2826
1902	# don't, removes xs symbols, too,	2827	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2828	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2829	#Symbol::delete_package __PACKAGE__;
1905		2830
1906	# reload cf.pm	2831	warn "unload completed, starting to reload now";
		2832
1907	warn "reloading cf.pm";	2833	warn "reloading cf.pm";
1908	require cf;	2834	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2836
1911	# load config and database again	2837	warn "loading config and database again";
1912	cf::cfg_load;	2838	cf::cfg_load;
1913	cf::db_load;
1914		2839
1915	# load extensions
1916	warn "load extensions";	2840	warn "loading extensions";
1917	cf::load_extensions;	2841	cf::load_extensions;
1918		2842
1919	# reattach attachments to objects	2843	warn "reattaching attachments to objects/players";
1920	warn "reattach";	2844	_global_reattach; # objects, sockets
1921	_global_reattach;	2845	warn "reattaching attachments to maps";
1922	};	2846	reattach $_ for values %MAP;
		2847	warn "reattaching attachments to players";
		2848	reattach $_ for values %PLAYER;
1923		2849
1924	if ($@) {	2850	warn "leaving sync_job";
		2851
		2852	1
		2853	} or do {
1925	warn $@;	2854	warn $@;
1926	warn "error while reloading, exiting.";	2855	warn "error while reloading, exiting.";
1927	exit 1;	2856	exit 1;
1928	}	2857	};
1929		2858
1930	warn "reloaded successfully";	2859	warn "reloaded";
1931	};	2860	};
1932		2861
1933	#############################################################################	2862	our $RELOAD_WATCHER; # used only during reload
1934		2863
1935	unless ($LINK_MAP) {	2864	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	2865	# doing reload synchronously and two reloads happen back-to-back,
		2866	# coro crashes during coro_state_free->destroy here.
1937		2867
1938	$LINK_MAP->width (41);	2868	$RELOAD_WATCHER ||= Event->timer (
1939	$LINK_MAP->height (41);	2869	reentrant => 0,
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,	2870	after => 0,
		2871	data => WF_AUTOCANCEL,
1948	cb => sub {	2872	cb => sub {
1949	$_[0]->w->cancel;	2873	do_reload_perl;
1950		2874	undef $RELOAD_WATCHER;
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});	2875	},
1969		2876	);
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	2877	}
1975
1976	register "<global>", __PACKAGE__;
1977		2878
1978	register_command "reload" => sub {	2879	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	2880	my ($who, $arg) = @_;
1980		2881
1981	if ($who->flag (FLAG_WIZ)) {	2882	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	2883	$who->message ("reloading server.");
		2884	async { reload_perl };
1985	}	2885	}
1986	};	2886	};
1987		2887
1988	unshift @INC, $LIBDIR;	2888	unshift @INC, $LIBDIR;
1989		2889
		2890	my $bug_warning = 0;
		2891
		2892	our @WAIT_FOR_TICK;
		2893	our @WAIT_FOR_TICK_BEGIN;
		2894
		2895	sub wait_for_tick {
		2896	return unless $TICK_WATCHER->is_active;
		2897	return if $Coro::current == $Coro::main;
		2898
		2899	my $signal = new Coro::Signal;
		2900	push @WAIT_FOR_TICK, $signal;
		2901	$signal->wait;
		2902	}
		2903
		2904	sub wait_for_tick_begin {
		2905	return unless $TICK_WATCHER->is_active;
		2906	return if $Coro::current == $Coro::main;
		2907
		2908	my $signal = new Coro::Signal;
		2909	push @WAIT_FOR_TICK_BEGIN, $signal;
		2910	$signal->wait;
		2911	}
		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
1990	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	2916	reentrant => 0,
		2917	parked => 1,
1992	prio => 0,	2918	prio => 0,
1993	at => $NEXT_TICK || $TICK,	2919	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	2920	data => WF_AUTOCANCEL,
1995	cb => sub {	2921	cb => sub {
1996	unless ($FREEZE) {	2922	if ($Coro::current != $Coro::main) {
		2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2924	unless ++$bug_warning > 10;
		2925	return;
		2926	}
		2927
		2928	$NOW = $tick_start = Event::time;
		2929
1997	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1999	}	2953	};
2000		2954
		2955	$RUNTIME += $TICK;
2001	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2002		2957
		2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2960	Coro::async_pool {
		2961	write_runtime
		2962	or warn "ERROR: unable to write runtime file: $!";
		2963	};
		2964	}
		2965
		2966	# my $AFTER = Event::time;
		2967	# warn $AFTER - $NOW;#d#
		2968
		2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2970	$sig->send;
		2971	}
		2972	while (my $sig = shift @WAIT_FOR_TICK) {
		2973	$sig->send;
		2974	}
		2975
		2976	$NOW = Event::time;
		2977
2003	# if we are delayed by four ticks or more, skip them all	2978	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2005		2980
2006	$TICK_WATCHER->at ($NEXT_TICK);	2981	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	2982	$TICK_WATCHER->start;
		2983
		2984	$LOAD = ($NOW - $tick_start) / $TICK;
		2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2986
		2987	_post_tick;
		2988
		2989
2008	},	2990	},
2009	);	2991	);
2010		2992
		2993	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	2994	BDB::max_poll_time $TICK * 0.1;
2012		2995	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	2996	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	2997	fd => BDB::poll_fileno,
2015	poll => 'r',	2998	poll => 'r',
2016	prio => 5,	2999	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	3000	data => WF_AUTOCANCEL,
2023	after => 0,	3001	cb => \&BDB::poll_cb,
2024	interval => 10,	3002	);
2025	cb => sub {	3003	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	3004
2027	write_runtime	3005	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	3006	my $status;
		3007	my $current = $Coro::current;
		3008	(
		3009	sub {
		3010	$status = $!;
		3011	$current->ready; undef $current;
		3012	},
		3013	sub {
		3014	Coro::schedule while defined $current;
		3015	$! = $status;
		3016	},
		3017	)
		3018	};
		3019
		3020	unless ($DB_ENV) {
		3021	$DB_ENV = BDB::db_env_create;
		3022
		3023	cf::sync_job {
		3024	eval {
		3025	BDB::db_env_open
		3026	$DB_ENV,
		3027	$BDBDIR,
		3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3030	0666;
		3031
		3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3033
		3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3035	$DB_ENV->set_lk_detect;
		3036	};
		3037
		3038	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	3039	};
2030	},	3040	}
2031	);	3041	}
		3042
		3043	{
		3044	IO::AIO::min_parallel 8;
		3045
		3046	undef $Coro::AIO::WATCHER;
		3047	IO::AIO::max_poll_time $TICK * 0.1;
		3048	$AIO_POLL_WATCHER = Event->io (
		3049	reentrant => 0,
		3050	data => WF_AUTOCANCEL,
		3051	fd => IO::AIO::poll_fileno,
		3052	poll => 'r',
		3053	prio => 6,
		3054	cb => \&IO::AIO::poll_cb,
		3055	);
		3056	}
		3057
		3058	my $_log_backtrace;
		3059
		3060	sub _log_backtrace {
		3061	my ($msg, @addr) = @_;
		3062
		3063	$msg =~ s/\n//;
		3064
		3065	# limit the # of concurrent backtraces
		3066	if ($_log_backtrace < 2) {
		3067	++$_log_backtrace;
		3068	async {
		3069	my @bt = fork_call {
		3070	@addr = map { sprintf "%x", $_ } @addr;
		3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3073	or die "addr2line: $!";
		3074
		3075	my @funcs;
		3076	my @res = <$fh>;
		3077	chomp for @res;
		3078	while (@res) {
		3079	my ($func, $line) = splice @res, 0, 2, ();
		3080	push @funcs, "[$func] $line";
		3081	}
		3082
		3083	@funcs
		3084	};
		3085
		3086	LOG llevInfo, "[ABT] $msg\n";
		3087	LOG llevInfo, "[ABT] $_\n" for @bt;
		3088	--$_log_backtrace;
		3089	};
		3090	} else {
		3091	LOG llevInfo, "[ABT] $msg\n";
		3092	LOG llevInfo, "[ABT] [suppressed]\n";
		3093	}
		3094	}
		3095
		3096	# load additional modules
		3097	use cf::pod;
		3098
		3099	END { cf::emergency_save }
2032		3100
2033	1	3101	1
2034		3102

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