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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.282 by elmex, Tue Jun 19 18:15:34 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		194
133	# 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
134	# within the Safe compartment.	196	# within the Safe compartment.
135	for my $pkg (qw(	197	for my $pkg (qw(
136	cf::global cf::attachable	198	cf::global cf::attachable
…		…
145		207
146	$Event::DIED = sub {	208	$Event::DIED = sub {
147	warn "error in event callback: @_";	209	warn "error in event callback: @_";
148	};	210	};
149		211
150	my %ext_pkg;	212	#############################################################################
151	my @exts;
152	my @hook;
153		213
154	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
155		215
156	=over 4	216	=over 4
157		217
158	=cut	218	=item dumpval $ref
159		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
160	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
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		250
184	=item cf::lock_wait $string	251	=item cf::lock_wait $string
185		252
186	Wait until the given lock is available. See cf::lock_acquire.	253	Wait until the given lock is available. See cf::lock_acquire.
187		254
…		…
193	returned.	260	returned.
194		261
195	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
197		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
198	=cut	269	=cut
199		270
200	our %LOCK;	271	our %LOCK;
201		272
202	sub lock_wait($) {	273	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
223	}	294	}
224	}	295	}
225		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
		301	}
		302
226	sub freeze_mainloop {	303	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
228		305
229	my $guard = Coro::guard { $TICK_WATCHER->start };	306	my $guard = Coro::guard {
		307	$TICK_WATCHER->start;
		308	};
230	$TICK_WATCHER->stop;	309	$TICK_WATCHER->stop;
231	$guard	310	$guard
232	}	311	}
233		312
234	=item cf::async { BLOCK }	313	=item cf::async { BLOCK }
…		…
241		320
242	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
243		322
244	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
245		324
246	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
249		329
250	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
253	fast or be very important.	333	fast or be very important.
…		…
256		336
257	sub sync_job(&) {	337	sub sync_job(&) {
258	my ($job) = @_;	338	my ($job) = @_;
259		339
260	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
261	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
263		345
264	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
273	warn $@ if $@;	355	warn $@ if $@;
274	undef $busy;	356	undef $busy;
275	})->prio (Coro::PRIO_MAX);	357	})->prio (Coro::PRIO_MAX);
276		358
277	while ($busy) {	359	while ($busy) {
278	unless (Coro::cede) {	360	Coro::cede or Event::one_event;
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;
281	}	361	}
282	}	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
283		369
284	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
285	} else {	371	} else {
286	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
287		373
…		…
289	}	375	}
290	}	376	}
291		377
292	=item $coro = cf::async_ext { BLOCK }	378	=item $coro = cf::async_ext { BLOCK }
293		379
294	Like async, but this coro is automcatially being canceled when the	380	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	381	extension calling this is being unloaded.
296		382
297	=cut	383	=cut
298		384
299	sub async_ext(&) {	385	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
308		394
309	$coro	395	$coro
310	}	396	}
311		397
312	sub write_runtime {	398	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		399
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	400	Executes the given code block with the given arguments in a seperate
316	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.
317		404
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	405	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		406
322	aio_fsync $fh	407	sub fork_call(&@) {
323	and return;	408	my ($cb, @args) = @_;
324		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) {
325	close $fh	416	close $fh2;
326	or return;
327		417
328	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
329	and return;	419	$res = Coro::Storable::thaw $res;
330		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
331	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		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 });
332	}	567	}
333		568
334	=back	569	=back
335		570
336	=cut	571	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		572
458	#############################################################################	573	#############################################################################
459		574
460	=head2 ATTACHABLE OBJECTS	575	=head2 ATTACHABLE OBJECTS
461		576
…		…
463	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")
464	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
465		580
466	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>
467	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
468	crossfire+).	583	Crossfire TRT).
469		584
470	=over 4	585	=over 4
471		586
472	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
473		588
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	702	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	703	our @CB_MAP = ();
589		704
590	my %attachment;	705	my %attachment;
591		706
		707	sub cf::attachable::thawer_merge {
		708	# simply override everything except _meta
		709	local $_[0]{_meta};
		710	%{$_[0]} = %{$_[1]};
		711	}
		712
592	sub _attach_cb($$$$) {	713	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	714	my ($registry, $event, $prio, $cb) = @_;
594		715
595	use sort 'stable';	716	use sort 'stable';
596		717
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
631		752
632	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		757
637	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	759	my $pkg = shift @arg;
639		760
640	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
670	}	791	}
671		792
672	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
673	} else {	794	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	796	}
676		797
677	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
678	}	799	}
679		800
…		…
681	if (ref $_[0]) {	802	if (ref $_[0]) {
682	_object_attach @_;	803	_object_attach @_;
683	} else {	804	} else {
684	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
685	}	806	}
		807	_recalc_want;
686	};	808	};
687		809
688	# all those should be optimised	810	# all those should be optimised
689	sub cf::attachable::detach {	811	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
694	reattach ($obj);	816	reattach ($obj);
695	} else {	817	} else {
696	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
697	}	819	}
		820	_recalc_want;
698	};	821	};
699		822
700	sub cf::attachable::attached {	823	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
702		825
…		…
767	# object support	890	# object support
768		891
769	sub reattach {	892	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	893	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	894	my ($obj) = @_;
		895
		896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		897
773	my $registry = $obj->registry;	898	my $registry = $obj->registry;
774		899
775	@$registry = ();	900	@$registry = ();
776		901
…		…
823	$filename, length $$rdata, scalar @$objs;	948	$filename, length $$rdata, scalar @$objs;
824		949
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	951	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	953	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	954	close $fh;
830		955
831	if (@$objs) {	956	if (@$objs) {
832	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) {
833	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	959	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	960	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	962	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	963	aio_rename "$filename.pst~", "$filename.pst";
839	}	964	}
840	} else {	965	} else {
841	aio_unlink "$filename.pst";	966	aio_unlink "$filename.pst";
…		…
873	or return;	998	or return;
874	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1000	}
876		1001
877	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1004	return ($data, $av);
880	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
881		1012
882	#############################################################################	1013	#############################################################################
883	# command handling &c	1014	# command handling &c
884		1015
885	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1030	}
900		1031
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1033
903	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.
904		1035
905	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
906	called.	1037	called.
907		1038
908	=cut	1039	=cut
909		1040
910	sub register_extcmd {	1041	sub register_extcmd {
911	my ($name, $cb) = @_;	1042	my ($name, $cb) = @_;
912		1043
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1044	$EXTCMD{$name} = $cb;
917	}	1045	}
918		1046
919	cf::player->attach (	1047	cf::player->attach (
920	on_command => sub {	1048	on_command => sub {
921	my ($pl, $name, $params) = @_;	1049	my ($pl, $name, $params) = @_;
…		…
934		1062
935	my $msg = eval { from_json $buf };	1063	my $msg = eval { from_json $buf };
936		1064
937	if (ref $msg) {	1065	if (ref $msg) {
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1067	if (my %reply = $cb->($pl, $msg)) {
940	$pl->ext_reply ($msg->{msgid}, %reply);	1068	$pl->ext_reply ($msg->{msgid}, %reply);
941	}	1069	}
942	}	1070	}
943	} else {	1071	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
946		1074
947	cf::override;	1075	cf::override;
948	},	1076	},
949	);	1077	);
950		1078
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	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($) {
958	my ($path) = @_;	1393	my ($path) = @_;
959		1394
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1395	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1396
966	warn "loading '$path' into '$pkg'\n";	1397	for my $region (list) {
967		1398	if ($region->match && $path =~ $region->match) {
968	open my $fh, "<:utf8", $path	1399	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1400	if $region->specificity > $specificity;
970		1401	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1402	}
1000		1403
1001	# remove commands	1404	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1405	}
1107		1406
1108	=back	1407	=back
1109
1110		1408
1111	=head3 cf::map	1409	=head3 cf::map
1112		1410
1113	=over 4	1411	=over 4
1114		1412
…		…
1117	package cf::map;	1415	package cf::map;
1118		1416
1119	use Fcntl;	1417	use Fcntl;
1120	use Coro::AIO;	1418	use Coro::AIO;
1121		1419
		1420	use overload
		1421	'""' => \&as_string,
		1422	fallback => 1;
		1423
1122	our $MAX_RESET = 3600;	1424	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1425	our $DEFAULT_RESET = 3000;
1124		1426
1125	sub generate_random_map {	1427	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1428	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1429	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1430	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1434	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1435	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1438	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$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},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1440	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(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"
1142	}	1570	}
1143		1571
1144	# and all this just because we cannot iterate over	1572	# and all this just because we cannot iterate over
1145	# all maps in C++...	1573	# all maps in C++...
1146	sub change_all_map_light {	1574	sub change_all_map_light {
…		…
1148		1576
1149	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1151	}	1579	}
1152		1580
		1581	sub decay_objects {
		1582	my ($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
1153	sub try_load_header($) {	1597	sub load_header_from($) {
1154	my ($path) = @_;	1598	my ($self, $path) = @_;
1155		1599
1156	utf8::encode $path;	1600	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1601	#aio_open $path, O_RDONLY, 0
		1602	# or return;
		1603
		1604	$self->_load_header ($path)
1158	or return;	1605	or return;
1159		1606
1160	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
1161	or return;	1650	or return;
		1651	$self->prepare_orig;
		1652	}
1162		1653
1163	# for better error messages only, will be overwritten	1654	$self->{deny_reset} = 1
1164	$map->path ($path);	1655	if $self->no_reset;
1165		1656
1166	$map->load_header ($path)	1657	$self->default_region (cf::region::find_by_path $self->{path})
1167	or return;	1658	unless $self->default_region;
1168		1659
1169	$map->{load_path} = $path;	1660	1
1170
1171	$map
1172	}	1661	}
1173		1662
1174	sub find;	1663	sub find;
1175	sub find {	1664	sub find {
1176	my ($path, $origin) = @_;	1665	my ($path, $origin) = @_;
1177		1666
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1667	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1668
1183	cf::lock_wait "map_find:$key";	1669	cf::lock_wait "map_find:$path";
1184		1670
1185	$cf::MAP{$key} || do {	1671	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1672	my $guard = cf::lock_acquire "map_find:$path";
1187		1673	my $map = new_from_path cf::map $path
1188	# do it the slow way
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1674	or return;
1207		1675
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1220		1677
1221	Coro::cede;	1678	$map->load_header
		1679	or return;
1222		1680
1223	if ($map->should_reset) {	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;
1224	$map->reset;	1684	$map->reset;
1225	undef $guard;	1685	undef $guard;
1226	$map = find $path	1686	return find $path;
1227	or return;
1228	}	1687	}
1229		1688
1230	$cf::MAP{$key} = $map	1689	$cf::MAP{$path} = $map
1231	}	1690	}
1232	}	1691	}
		1692
		1693	sub pre_load { }
		1694	sub post_load { }
1233		1695
1234	sub load {	1696	sub load {
1235	my ($self) = @_;	1697	my ($self) = @_;
1236		1698
		1699	local $self->{deny_reset} = 1; # loading can take a long time
		1700
1237	my $path = $self->{path};	1701	my $path = $self->{path};
		1702
		1703	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1704	my $guard = cf::lock_acquire "map_load:$path";
1239		1705
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1706	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1707
1242	$self->in_memory (cf::MAP_LOADING);	1708	$self->in_memory (cf::MAP_LOADING);
1243		1709
1244	$self->alloc;	1710	$self->alloc;
		1711
		1712	$self->pre_load;
		1713	Coro::cede;
		1714
1245	$self->load_objects ($self->{load_path}, 1)	1715	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1716	or return;
1247		1717
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1719	if delete $self->{load_original};
1250		1720
1251	if (my $uniq = $path->uniq_path) {	1721	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1722	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1723	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1724	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1725	$self->_load_objects ($uniq, 0);
1256	}	1726	}
1257	}	1727	}
1258		1728
1259	Coro::cede;	1729	Coro::cede;
1260
1261	# now do the right thing for maps	1730	# now do the right thing for maps
1262	$self->link_multipart_objects;	1731	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	1732	$self->difficulty ($self->estimate_difficulty)
1273	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;
1274	$self->activate;	1743	$self->activate;
1275	}	1744	}
1276		1745
1277	Coro::cede;
1278
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1746	$self->in_memory (cf::MAP_IN_MEMORY);
		1747	}
		1748
		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	$neigh->load;
		1785	}
1280	}	1786	}
1281		1787
1282	sub find_sync {	1788	sub find_sync {
1283	my ($path, $origin) = @_;	1789	my ($path, $origin) = @_;
1284		1790
1285	cf::sync_job { cf::map::find $path, $origin }	1791	cf::sync_job { find $path, $origin }
1286	}	1792	}
1287		1793
1288	sub do_load_sync {	1794	sub do_load_sync {
1289	my ($map) = @_;	1795	my ($map) = @_;
1290		1796
1291	cf::sync_job { $map->load };	1797	cf::sync_job { $map->load };
1292	}	1798	}
1293		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;
		1818	$map->load;
		1819
		1820	delete $MAP_PREFETCH{$path};
		1821	}
		1822	}
		1823	undef $MAP_PREFETCHER;
		1824	};
		1825	$MAP_PREFETCHER->prio (6);
		1826
		1827	()
		1828	}
		1829
1294	sub save {	1830	sub save {
1295	my ($self) = @_;	1831	my ($self) = @_;
1296		1832
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
1298		1834
1299	$self->{last_save} = $cf::RUNTIME;	1835	$self->{last_save} = $cf::RUNTIME;
1300		1836
1301	return unless $self->dirty;	1837	return unless $self->dirty;
1302		1838
1303	my $save = $self->{path}->save_path; utf8::encode $save;	1839	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1840	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		1841
1306	$self->{load_path} = $save;	1842	$self->{load_path} = $save;
1307		1843
1308	return if $self->{deny_save};	1844	return if $self->{deny_save};
1309		1845
1310	local $self->{last_access} = $self->last_access;#d#	1846	local $self->{last_access} = $self->last_access;#d#
1311		1847
		1848	cf::async {
		1849	$_->contr->save for $self->players;
		1850	};
		1851
1312	if ($uniq) {	1852	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	1855	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	1857	}
1318	}	1858	}
1319		1859
1320	sub swap_out {	1860	sub swap_out {
1321	my ($self) = @_;	1861	my ($self) = @_;
…		…
1335		1875
1336	sub reset_at {	1876	sub reset_at {
1337	my ($self) = @_;	1877	my ($self) = @_;
1338		1878
1339	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1342		1881
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1884
…		…
1350	my ($self) = @_;	1889	my ($self) = @_;
1351		1890
1352	$self->reset_at <= $cf::RUNTIME	1891	$self->reset_at <= $cf::RUNTIME
1353	}	1892	}
1354		1893
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1894	sub reset {
1377	my ($self) = @_;	1895	my ($self) = @_;
1378		1896
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		1898
1381	return if $self->players;	1899	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		1900
1384	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	}
1385		1912
1386	delete $cf::MAP{$self->path};	1913	delete $cf::MAP{$self->path};
		1914
		1915	$self->clear;
1387		1916
1388	$_->clear_links_to ($self) for values %cf::MAP;	1917	$_->clear_links_to ($self) for values %cf::MAP;
1389		1918
1390	$self->unlink_save;	1919	$self->unlink_save;
1391	$self->destroy;	1920	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	1923	my $nuke_counter = "aaaa";
1395		1924
1396	sub nuke {	1925	sub nuke {
1397	my ($self) = @_;	1926	my ($self) = @_;
1398		1927
		1928	delete $cf::MAP{$self->path};
		1929
		1930	$self->unlink_save;
		1931
		1932	bless $self, "cf::map";
		1933	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	1934	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	1935	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1937
		1938	$cf::MAP{$self->path} = $self;
		1939
1402	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1403	}	1941	}
1404		1942
1405	sub customise_for {	1943	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		1944
1408	if ($map->per_player) {	1945	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
1410	}	1951	[
1411		1952	map {
1412	$map	1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
1413	}	1959	}
1414		1960
1415	sub emergency_save {	1961	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		1962
1418	warn "enter emergency map save\n";	1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
1419		1965
1420	cf::sync_job {	1966	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		1967
1425	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	]
1426	}	1995	}
1427		1996
1428	package cf;	1997	package cf;
1429		1998
1430	=back	1999	=back
1431		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
1432		2027
1433	=head3 cf::object::player	2028	=head3 cf::object::player
1434		2029
1435	=over 4	2030	=over 4
1436		2031
…		…
1450		2045
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2046	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2047
1453	if ($self->{record_replies}) {	2048	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2049	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2050
1455	} else {	2051	} else {
		2052	my $pl = $self->contr;
		2053
		2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2055	my $diag = $pl->{npc_dialog};
		2056	$diag->{pl}->ext_reply (
		2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
		2058	);
		2059
		2060	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2061	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2062	$self->message ($msg, $flags);
		2063	}
1458	}	2064	}
1459	}	2065	}
1460		2066
1461	=item $player_object->may ("access")	2067	=item $player_object->may ("access")
1462		2068
…		…
1476		2082
1477	=item $player_object->enter_link	2083	=item $player_object->enter_link
1478		2084
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2085	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2086
1481	The player should be reaosnably safe there for short amounts of time. You	2087	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2088	I<MUST> call C<leave_link> as soon as possible, though.
1483		2089
		2090	Will never block.
		2091
1484	=item $player_object->leave_link ($map, $x, $y)	2092	=item $player_object->leave_link ($map, $x, $y)
1485		2093
1486	Moves the player out of the specila link map onto the given map. If the	2094	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2095	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2096	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2097	fails, to the emergency map position.
1490		2098
1491	Might block.	2099	Might block.
1492		2100
1493	=cut	2101	=cut
		2102
		2103	sub link_map {
		2104	unless ($LINK_MAP) {
		2105	$LINK_MAP = cf::map::find "{link}"
		2106	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2107	$LINK_MAP->load;
		2108	}
		2109
		2110	$LINK_MAP
		2111	}
1494		2112
1495	sub cf::object::player::enter_link {	2113	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2114	my ($self) = @_;
1497		2115
1498	$self->deactivate_recursive;	2116	$self->deactivate_recursive;
1499		2117
1500	return if $self->map == $LINK_MAP;	2118	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2119
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2121	if $self->map && $self->map->{path} ne "{link}";
1504		2122
1505	$self->enter_map ($LINK_MAP, 20, 20);	2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2124	}
1507		2125
1508	sub cf::object::player::leave_link {	2126	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2127	my ($self, $map, $x, $y) = @_;
		2128
		2129	return unless $self->contr->active;
1510		2130
1511	my $link_pos = delete $self->{_link_pos};	2131	my $link_pos = delete $self->{_link_pos};
1512		2132
1513	unless ($map) {	2133	unless ($map) {
1514	# restore original map position	2134	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2148	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2149	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2150	if $x <=0 && $y <= 0;
1531		2151
1532	$map->load;	2152	$map->load;
		2153	$map->load_diag;
1533		2154
		2155	return unless $self->contr->active;
1534	$self->activate_recursive;	2156	$self->activate_recursive;
		2157
		2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2159	$self->enter_map ($map, $x, $y);
1536	}	2160	}
1537		2161
1538	cf::player->attach (
1539	on_logout => sub {
1540	my ($pl) = @_;
1541
1542	# abort map switching before logout
1543	if ($pl->ob->{_link_pos}) {
1544	cf::sync_job {
1545	$pl->ob->leave_link
1546	};
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)	2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1572		2163
		2164	Moves the player to the given map-path and coordinates by first freezing
		2165	her, loading and preparing them map, calling the provided $check callback
		2166	that has to return the map if sucecssful, and then unfreezes the player on
		2167	the new (success) or old (failed) map position.
		2168
1573	=cut	2169	=cut
		2170
		2171	our $GOTOGEN;
1574		2172
1575	sub cf::object::player::goto {	2173	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2174	my ($self, $path, $x, $y, $check) = @_;
		2175
		2176	# do generation counting so two concurrent goto's will be executed in-order
		2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2178
1578	$self->enter_link;	2179	$self->enter_link;
1579		2180
1580	(async {	2181	(async {
1581	$path = new cf::path $path;	2182	my $map = eval {
1582
1583	my $map = cf::map::find $path->as_string;	2183	my $map = cf::map::find $path;
		2184
		2185	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2186	$map = $map->customise_for ($self);
1585		2187	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2188	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2190	}
1590		2191
		2192	$map
		2193	};
		2194
		2195	if ($@) {
		2196	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2197	LOG llevError | logBacktrace, Carp::longmess $@;
		2198	}
		2199
		2200	if ($gen == $self->{_goto_generation}) {
		2201	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2202	$self->leave_link ($map, $x, $y);
		2203	}
1592	})->prio (1);	2204	})->prio (1);
1593	}	2205	}
1594		2206
1595	=item $player_object->enter_exit ($exit_object)	2207	=item $player_object->enter_exit ($exit_object)
1596		2208
…		…
1598		2210
1599	sub parse_random_map_params {	2211	sub parse_random_map_params {
1600	my ($spec) = @_;	2212	my ($spec) = @_;
1601		2213
1602	my $rmp = { # defaults	2214	my $rmp = { # defaults
1603	xsize => 10,	2215	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2216	ysize => (cf::rndm 15, 40),
		2217	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2218	#layout => string,
1605	};	2219	};
1606		2220
1607	for (split /\n/, $spec) {	2221	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2222	my ($k, $v) = split /\s+/, $_, 2;
1609		2223
…		…
1613	$rmp	2227	$rmp
1614	}	2228	}
1615		2229
1616	sub prepare_random_map {	2230	sub prepare_random_map {
1617	my ($exit) = @_;	2231	my ($exit) = @_;
		2232
		2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2234
1619	# all this does is basically replace the /! path by	2235	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2236	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2237	# that depends on the exit object
1622		2238
1623	my $rmp = parse_random_map_params $exit->msg;	2239	my $rmp = parse_random_map_params $exit->msg;
1624		2240
1625	if ($exit->map) {	2241	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2242	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2243	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2244	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2245	$rmp->{origin_y} = $exit->y;
1630	}	2246	}
1631		2247
1632	$rmp->{random_seed} ||= $exit->random_seed;	2248	$rmp->{random_seed} ||= $exit->random_seed;
1633		2249
1634	my $data = cf::to_json $rmp;	2250	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2251	my $md5 = Digest::MD5::md5_hex $data;
		2252	my $meta = "$RANDOMDIR/$md5.meta";
1636		2253
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2255	aio_write $fh, 0, (length $data), $data, 0;
		2256	undef $fh;
		2257	aio_rename "$meta~", $meta;
1639		2258
1640	$exit->slaying ("?random/$md5");	2259	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2260	$exit->msg (undef);
1642	}	2261	}
1643	}	2262	}
1644		2263
1645	sub cf::object::player::enter_exit {	2264	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2265	my ($self, $exit) = @_;
1647		2266
1648	return unless $self->type == cf::PLAYER;	2267	return unless $self->type == cf::PLAYER;
		2268
		2269	if ($exit->slaying eq "/!") {
		2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2271	# the problem is that $exit might not survive long enough
		2272	# so it needs to be done right now, right here
		2273	cf::sync_job { prepare_random_map $exit };
		2274	}
		2275
		2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2277	my $hp = $exit->stats->hp;
		2278	my $sp = $exit->stats->sp;
1649		2279
1650	$self->enter_link;	2280	$self->enter_link;
1651		2281
1652	(async {	2282	(async {
1653	$self->deactivate_recursive; # just to be sure	2283	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2284	unless (eval {
1655	prepare_random_map $exit	2285	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2286
1661	1;	2287	1;
1662	}) {	2288	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2289	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2290	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2291	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2292	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2293
1668	warn "ERROR in enter_exit: $@";	2294	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2295	$self->leave_link;
1670	}	2296	}
1671	})->prio (1);	2297	})->prio (1);
…		…
1684		2310
1685	sub cf::client::send_drawinfo {	2311	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2312	my ($self, $text, $flags) = @_;
1687		2313
1688	utf8::encode $text;	2314	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2316	}
1691		2317
		2318	=item $client->ext_event ($type, %msg)
		2319
		2320	Sends an exti event to the client.
		2321
		2322	=cut
		2323
		2324	sub cf::client::ext_event($$%) {
		2325	my ($self, $type, %msg) = @_;
		2326
		2327	$msg{msgtype} = "event_$type";
		2328	$self->send_packet ("ext " . cf::to_json \%msg);
		2329	}
1692		2330
1693	=item $success = $client->query ($flags, "text", \&cb)	2331	=item $success = $client->query ($flags, "text", \&cb)
1694		2332
1695	Queues a query to the client, calling the given callback with	2333	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1725	# get handled first	2363	# get handled first
1726	my $queue = delete $ns->{query_queue}	2364	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2365	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2366
1729	(shift @$queue)->[1]->($msg);	2367	(shift @$queue)->[1]->($msg);
		2368	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2369
1731	push @{ $ns->{query_queue} }, @$queue;	2370	push @{ $ns->{query_queue} }, @$queue;
1732		2371
1733	if (@{ $ns->{query_queue} } == @$queue) {	2372	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2373	if (@$queue) {
…		…
1792		2431
1793	# here we export the classes and methods available to script code	2432	# here we export the classes and methods available to script code
1794		2433
1795	=pod	2434	=pod
1796		2435
1797	The following fucntions and emthods are available within a safe environment:	2436	The following functions and methods are available within a safe environment:
1798		2437
1799	cf::object contr pay_amount pay_player map	2438	cf::object contr pay_amount pay_player map
1800	cf::object::player player	2439	cf::object::player player
1801	cf::player peaceful	2440	cf::player peaceful
1802	cf::map trigger	2441	cf::map trigger
…		…
1883	=back	2522	=back
1884		2523
1885	=cut	2524	=cut
1886		2525
1887	#############################################################################	2526	#############################################################################
		2527	# the server's init and main functions
1888		2528
1889	=head2 EXTENSION DATABASE SUPPORT	2529	sub load_facedata($) {
		2530	my ($path) = @_;
1890		2531
1891	Crossfire maintains a very simple database for extension use. It can	2532	warn "loading facedata from $path\n";
1892	currently store anything that can be serialised using Storable, which
1893	excludes objects.
1894		2533
1895	The parameter C<$family> should best start with the name of the extension	2534	my $facedata;
1896	using it, it should be unique.	2535	0 < aio_load $path, $facedata
		2536	or die "$path: $!";
1897		2537
1898	=over 4	2538	$facedata = Coro::Storable::thaw $facedata;
1899		2539
1900	=item $hashref = cf::db_get $family	2540	$facedata->{version} == 2
		2541	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		2542
1902	Return a hashref for use by the extension C<$family>, which can be
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905
1906	=item $value = cf::db_get $family => $key
1907
1908	Returns a single value from the database
1909
1910	=item cf::db_put $family => $hashref
1911
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}	2543	{
		2544	my $faces = $facedata->{faceinfo};
1938		2545
1939	my $pid;	2546	while (my ($face, $info) = each %$faces) {
1940		2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1941	sub db_save() {	2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1942	waitpid $pid, 0 if $pid;	2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1943	if (0 == ($pid = fork)) {	2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1944	$DB->{_meta}{version} = 1;	2551	Coro::cede;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});
1961
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}
1966
1967	sub db_get($;$) {
1968	@_ >= 2
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972
1973	sub db_put($$;$) {
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	2552	}
1987	);
1988	}
1989		2553
1990	#############################################################################	2554	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	2555	next unless $info->{smooth};
		2556	my $idx = cf::face::find $face
		2557	or next;
		2558	if (my $smooth = cf::face::find $info->{smooth}) {
		2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2560	} else {
		2561	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2562	}
		2563	Coro::cede;
		2564	}
		2565	}
		2566
		2567	{
		2568	my $anims = $facedata->{animinfo};
		2569
		2570	while (my ($anim, $info) = each %$anims) {
		2571	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2572	Coro::cede;
		2573	}
		2574
		2575	cf::anim::invalidate_all; # d'oh
		2576	}
		2577
		2578	1
		2579	}
		2580
		2581	sub reload_regions {
		2582	load_resource_file "$MAPDIR/regions"
		2583	or die "unable to load regions file\n";
		2584	}
		2585
		2586	sub reload_facedata {
		2587	load_facedata "$DATADIR/facedata"
		2588	or die "unable to load facedata\n";
		2589	}
		2590
		2591	sub reload_archetypes {
		2592	load_resource_file "$DATADIR/archetypes"
		2593	or die "unable to load archetypes\n";
		2594	}
		2595
		2596	sub reload_treasures {
		2597	load_resource_file "$DATADIR/treasures"
		2598	or die "unable to load treasurelists\n";
		2599	}
		2600
		2601	sub reload_resources {
		2602	warn "reloading resource files...\n";
		2603
		2604	reload_regions;
		2605	reload_facedata;
		2606	#reload_archetypes;#d#
		2607	reload_archetypes;
		2608	reload_treasures;
		2609
		2610	warn "finished reloading resource files\n";
		2611	}
		2612
		2613	sub init {
		2614	reload_resources;
		2615	}
1992		2616
1993	sub cfg_load {	2617	sub cfg_load {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	2618	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	2619	or return;
1996		2620
1997	local $/;	2621	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	2622	*CFG = YAML::Syck::Load <$fh>;
1999		2623
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2626	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2627	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		2628
2005	if (exists $CFG{mlockall}) {	2629	if (exists $CFG{mlockall}) {
2006	eval {	2630	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	2631	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	2632	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	2633	};
2010	warn $@ if $@;	2634	warn $@ if $@;
2011	}	2635	}
2012	}	2636	}
2013		2637
2014	sub main {	2638	sub main {
2015	# we must not ever block the main coroutine	2639	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	2640	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2642	(async {
2018	async { Event::one_event };	2643	Event::one_event;
		2644	})->prio (Coro::PRIO_MAX);
2019	};	2645	};
2020		2646
2021	cfg_load;	2647	cfg_load;
2022	db_load;	2648	db_init;
2023	load_extensions;	2649	load_extensions;
		2650
		2651	$TICK_WATCHER->start;
2024	Event::loop;	2652	Event::loop;
2025	}	2653	}
2026		2654
2027	#############################################################################	2655	#############################################################################
2028	# initialisation	2656	# initialisation and cleanup
2029		2657
		2658	# install some emergency cleanup handlers
		2659	BEGIN {
		2660	for my $signal (qw(INT HUP TERM)) {
		2661	Event->signal (
		2662	reentrant => 0,
		2663	data => WF_AUTOCANCEL,
		2664	signal => $signal,
		2665	prio => 0,
		2666	cb => sub {
		2667	cf::cleanup "SIG$signal";
		2668	},
		2669	);
		2670	}
		2671	}
		2672
		2673	sub write_runtime {
		2674	my $runtime = "$LOCALDIR/runtime";
		2675
		2676	# first touch the runtime file to show we are still running:
		2677	# the fsync below can take a very very long time.
		2678
		2679	IO::AIO::aio_utime $runtime, undef, undef;
		2680
		2681	my $guard = cf::lock_acquire "write_runtime";
		2682
		2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2684	or return;
		2685
		2686	my $value = $cf::RUNTIME + 90 + 10;
		2687	# 10 is the runtime save interval, for a monotonic clock
		2688	# 60 allows for the watchdog to kill the server.
		2689
		2690	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2691	and return;
		2692
		2693	# always fsync - this file is important
		2694	aio_fsync $fh
		2695	and return;
		2696
		2697	# touch it again to show we are up-to-date
		2698	aio_utime $fh, undef, undef;
		2699
		2700	close $fh
		2701	or return;
		2702
		2703	aio_rename "$runtime~", $runtime
		2704	and return;
		2705
		2706	warn "runtime file written.\n";
		2707
		2708	1
		2709	}
		2710
		2711	sub emergency_save() {
		2712	my $freeze_guard = cf::freeze_mainloop;
		2713
		2714	warn "enter emergency perl save\n";
		2715
		2716	cf::sync_job {
		2717	# use a peculiar iteration method to avoid tripping on perl
		2718	# refcount bugs in for. also avoids problems with players
		2719	# and maps saved/destroyed asynchronously.
		2720	warn "begin emergency player save\n";
		2721	for my $login (keys %cf::PLAYER) {
		2722	my $pl = $cf::PLAYER{$login} or next;
		2723	$pl->valid or next;
		2724	$pl->save;
		2725	}
		2726	warn "end emergency player save\n";
		2727
		2728	warn "begin emergency map save\n";
		2729	for my $path (keys %cf::MAP) {
		2730	my $map = $cf::MAP{$path} or next;
		2731	$map->valid or next;
		2732	$map->save;
		2733	}
		2734	warn "end emergency map save\n";
		2735
		2736	warn "begin emergency database checkpoint\n";
		2737	BDB::db_env_txn_checkpoint $DB_ENV;
		2738	warn "end emergency database checkpoint\n";
		2739	};
		2740
		2741	warn "leave emergency perl save\n";
		2742	}
		2743
		2744	sub post_cleanup {
		2745	my ($make_core) = @_;
		2746
		2747	warn Carp::longmess "post_cleanup backtrace"
		2748	if $make_core;
		2749	}
		2750
2030	sub reload() {	2751	sub do_reload_perl() {
2031	# can/must only be called in main	2752	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	2753	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	2754	warn "can only reload from main coroutine";
2034	return;	2755	return;
2035	}	2756	}
2036		2757
2037	warn "reloading...";	2758	warn "reloading...";
2038		2759
2039	my $guard = freeze_mainloop;	2760	warn "entering sync_job";
		2761
		2762	cf::sync_job {
		2763	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	2764	cf::emergency_save;
		2765	cf::write_runtime; # external watchdog should not bark
2041		2766
2042	eval {	2767	warn "syncing database to disk";
		2768	BDB::db_env_txn_checkpoint $DB_ENV;
		2769
2043	# if anything goes wrong in here, we should simply crash as we already saved	2770	# if anything goes wrong in here, we should simply crash as we already saved
2044		2771
2045	# cancel all watchers	2772	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	2773	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	2775	}
2049		2776
		2777	warn "flushing outstanding aio requests";
		2778	for (;;) {
		2779	BDB::flush;
		2780	IO::AIO::flush;
		2781	Coro::cede;
		2782	last unless IO::AIO::nreqs || BDB::nreqs;
		2783	warn "iterate...";
		2784	}
		2785
		2786	++$RELOAD;
		2787
2050	# cancel all extension coros	2788	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	2789	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	2790	%EXT_CORO = ();
2053		2791
2054	# unload all extensions	2792	warn "removing commands";
2055	for (@exts) {	2793	%COMMAND = ();
		2794
		2795	warn "removing ext commands";
		2796	%EXTCMD = ();
		2797
		2798	warn "unloading/nuking all extensions";
		2799	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	2800	warn "... unloading $pkg";
2057	unload_extension $_;	2801
		2802	if (my $cb = $pkg->can ("unload")) {
		2803	eval {
		2804	$cb->($pkg);
		2805	1
		2806	} or warn "$pkg unloaded, but with errors: $@";
2058	}	2807	}
2059		2808
		2809	warn "... nuking $pkg";
		2810	Symbol::delete_package $pkg;
		2811	}
		2812
2060	# unload all modules loaded from $LIBDIR	2813	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	2814	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		2816
2064	warn "removing <$k>";	2817	warn "... unloading $k";
2065	delete $INC{$k};	2818	delete $INC{$k};
2066		2819
2067	$k =~ s/\.pm$//;	2820	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	2821	$k =~ s/\//::/g;
2069		2822
…		…
2072	}	2825	}
2073		2826
2074	Symbol::delete_package $k;	2827	Symbol::delete_package $k;
2075	}	2828	}
2076		2829
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	2830	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	2831	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		2833
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	2834	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	2835	delete $INC{"cf.pm"};
		2836	delete $INC{"cf/pod.pm"};
2090		2837
2091	# don't, removes xs symbols, too,	2838	# don't, removes xs symbols, too,
2092	# and global variables created in xs	2839	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	2840	#Symbol::delete_package __PACKAGE__;
2094		2841
2095	# reload cf.pm	2842	warn "unload completed, starting to reload now";
		2843
2096	warn "reloading cf.pm";	2844	warn "reloading cf.pm";
2097	require cf;	2845	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		2847
2100	# load config and database again	2848	warn "loading config and database again";
2101	cf::cfg_load;	2849	cf::cfg_load;
2102	cf::db_load;
2103		2850
2104	# load extensions
2105	warn "load extensions";	2851	warn "loading extensions";
2106	cf::load_extensions;	2852	cf::load_extensions;
2107		2853
2108	# reattach attachments to objects	2854	warn "reattaching attachments to objects/players";
2109	warn "reattach";	2855	_global_reattach; # objects, sockets
2110	_global_reattach;	2856	warn "reattaching attachments to maps";
2111	};	2857	reattach $_ for values %MAP;
		2858	warn "reattaching attachments to players";
		2859	reattach $_ for values %PLAYER;
2112		2860
2113	if ($@) {	2861	warn "leaving sync_job";
		2862
		2863	1
		2864	} or do {
2114	warn $@;	2865	warn $@;
2115	warn "error while reloading, exiting.";	2866	warn "error while reloading, exiting.";
2116	exit 1;	2867	exit 1;
2117	}	2868	};
2118		2869
2119	warn "reloaded successfully";	2870	warn "reloaded";
2120	};	2871	};
2121		2872
2122	#############################################################################	2873	our $RELOAD_WATCHER; # used only during reload
2123		2874
2124	unless ($LINK_MAP) {	2875	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	2876	# doing reload synchronously and two reloads happen back-to-back,
		2877	# coro crashes during coro_state_free->destroy here.
2126		2878
2127	$LINK_MAP->width (41);	2879	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	2880	reentrant => 0,
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,	2881	after => 0,
		2882	data => WF_AUTOCANCEL,
2137	cb => sub {	2883	cb => sub {
2138	$_[0]->w->cancel;	2884	do_reload_perl;
2139		2885	undef $RELOAD_WATCHER;
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});	2886	},
2158		2887	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	2888	}
2164
2165	register "<global>", __PACKAGE__;
2166		2889
2167	register_command "reload" => sub {	2890	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	2891	my ($who, $arg) = @_;
2169		2892
2170	if ($who->flag (FLAG_WIZ)) {	2893	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	2894	$who->message ("reloading server.");
		2895	async { reload_perl };
2174	}	2896	}
2175	};	2897	};
2176		2898
2177	unshift @INC, $LIBDIR;	2899	unshift @INC, $LIBDIR;
2178		2900
		2901	my $bug_warning = 0;
		2902
		2903	our @WAIT_FOR_TICK;
		2904	our @WAIT_FOR_TICK_BEGIN;
		2905
		2906	sub wait_for_tick {
		2907	return unless $TICK_WATCHER->is_active;
		2908	return if $Coro::current == $Coro::main;
		2909
		2910	my $signal = new Coro::Signal;
		2911	push @WAIT_FOR_TICK, $signal;
		2912	$signal->wait;
		2913	}
		2914
		2915	sub wait_for_tick_begin {
		2916	return unless $TICK_WATCHER->is_active;
		2917	return if $Coro::current == $Coro::main;
		2918
		2919	my $signal = new Coro::Signal;
		2920	push @WAIT_FOR_TICK_BEGIN, $signal;
		2921	$signal->wait;
		2922	}
		2923
		2924	my $min = 1e6;#d#
		2925	my $avg = 10;
2179	$TICK_WATCHER = Event->timer (	2926	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	2927	reentrant => 0,
		2928	parked => 1,
2181	prio => 0,	2929	prio => 0,
2182	at => $NEXT_TICK || $TICK,	2930	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	2931	data => WF_AUTOCANCEL,
2184	cb => sub {	2932	cb => sub {
		2933	if ($Coro::current != $Coro::main) {
		2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2935	unless ++$bug_warning > 10;
		2936	return;
		2937	}
		2938
		2939	$NOW = $tick_start = Event::time;
		2940
2185	cf::server_tick; # one server iteration	2941	cf::server_tick; # one server iteration
		2942
		2943	0 && sync_job {#d#
		2944	for(1..10) {
		2945	my $t = Event::time;
		2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2947	or die;
		2948
		2949	$map->width (50);
		2950	$map->height (50);
		2951	$map->alloc;
		2952	$map->_load_objects ("/tmp/x.map", 1);
		2953	my $t = Event::time - $t;
		2954
		2955	#next unless $t < 0.0013;#d#
		2956	if ($t < $min) {
		2957	$min = $t;
		2958	}
		2959	$avg = $avg * 0.99 + $t * 0.01;
		2960	}
		2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2962	exit 0;
		2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2964	};
		2965
2186	$RUNTIME += $TICK;	2966	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	2967	$NEXT_TICK += $TICK;
2188		2968
		2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2971	Coro::async_pool {
		2972	write_runtime
		2973	or warn "ERROR: unable to write runtime file: $!";
		2974	};
		2975	}
		2976
		2977	# my $AFTER = Event::time;
		2978	# warn $AFTER - $NOW;#d#
		2979
		2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2981	$sig->send;
		2982	}
		2983	while (my $sig = shift @WAIT_FOR_TICK) {
		2984	$sig->send;
		2985	}
		2986
		2987	$NOW = Event::time;
		2988
2189	# if we are delayed by four ticks or more, skip them all	2989	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		2991
2192	$TICK_WATCHER->at ($NEXT_TICK);	2992	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	2993	$TICK_WATCHER->start;
		2994
		2995	$LOAD = ($NOW - $tick_start) / $TICK;
		2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2997
		2998	_post_tick;
		2999
		3000
2194	},	3001	},
2195	);	3002	);
2196		3003
		3004	{
2197	IO::AIO::max_poll_time $TICK * 0.2;	3005	BDB::max_poll_time $TICK * 0.1;
2198		3006	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3007	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3008	fd => BDB::poll_fileno,
2201	poll => 'r',	3009	poll => 'r',
2202	prio => 5,	3010	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3011	data => WF_AUTOCANCEL,
2209	after => 0,	3012	cb => \&BDB::poll_cb,
2210	interval => 10,	3013	);
2211	cb => sub {	3014	BDB::min_parallel 8;
2212	(Coro::unblock_sub {	3015
2213	write_runtime	3016	BDB::set_sync_prepare {
2214	or warn "ERROR: unable to write runtime file: $!";	3017	my $status;
		3018	my $current = $Coro::current;
		3019	(
		3020	sub {
		3021	$status = $!;
		3022	$current->ready; undef $current;
		3023	},
		3024	sub {
		3025	Coro::schedule while defined $current;
		3026	$! = $status;
		3027	},
		3028	)
		3029	};
		3030
		3031	unless ($DB_ENV) {
		3032	$DB_ENV = BDB::db_env_create;
		3033
		3034	cf::sync_job {
		3035	eval {
		3036	BDB::db_env_open
		3037	$DB_ENV,
		3038	$BDBDIR,
		3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3041	0666;
		3042
		3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3044
		3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3046	$DB_ENV->set_lk_detect;
		3047	};
		3048
		3049	cf::cleanup "db_env_open(db): $@" if $@;
2215	})->();	3050	};
2216	},	3051	}
2217	);	3052	}
		3053
		3054	{
		3055	IO::AIO::min_parallel 8;
		3056
		3057	undef $Coro::AIO::WATCHER;
		3058	IO::AIO::max_poll_time $TICK * 0.1;
		3059	$AIO_POLL_WATCHER = Event->io (
		3060	reentrant => 0,
		3061	data => WF_AUTOCANCEL,
		3062	fd => IO::AIO::poll_fileno,
		3063	poll => 'r',
		3064	prio => 6,
		3065	cb => \&IO::AIO::poll_cb,
		3066	);
		3067	}
		3068
		3069	my $_log_backtrace;
		3070
		3071	sub _log_backtrace {
		3072	my ($msg, @addr) = @_;
		3073
		3074	$msg =~ s/\n//;
		3075
		3076	# limit the # of concurrent backtraces
		3077	if ($_log_backtrace < 2) {
		3078	++$_log_backtrace;
		3079	async {
		3080	my @bt = fork_call {
		3081	@addr = map { sprintf "%x", $_ } @addr;
		3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3084	or die "addr2line: $!";
		3085
		3086	my @funcs;
		3087	my @res = <$fh>;
		3088	chomp for @res;
		3089	while (@res) {
		3090	my ($func, $line) = splice @res, 0, 2, ();
		3091	push @funcs, "[$func] $line";
		3092	}
		3093
		3094	@funcs
		3095	};
		3096
		3097	LOG llevInfo, "[ABT] $msg\n";
		3098	LOG llevInfo, "[ABT] $_\n" for @bt;
		3099	--$_log_backtrace;
		3100	};
		3101	} else {
		3102	LOG llevInfo, "[ABT] $msg\n";
		3103	LOG llevInfo, "[ABT] [suppressed]\n";
		3104	}
		3105	}
		3106
		3107	# load additional modules
		3108	use cf::pod;
2218		3109
2219	END { cf::emergency_save }	3110	END { cf::emergency_save }
2220		3111
2221	1	3112	1
2222		3113

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