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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
…		…
49	our %COMMAND = ();	50	our %COMMAND = ();
50	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
51		52
52	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
56		58
57	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
58	our @EVENT;	60	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	61
		62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
60		73
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	75	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
75	our $RUNTIME;	88	our $RUNTIME;
76		89
77	our %PLAYER; # all users	90	our %PLAYER; # all users
78	our %MAP; # all maps	91	our %MAP; # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		93
83	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
86	binmode STDOUT;	101	binmode STDOUT;
87	binmode STDERR;	102	binmode STDERR;
88		103
89	# read virtual server time, if available	104	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
94	}	109	}
95		110
96	mkdir cf::localdir;	111	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		113
103	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
104		115
105	sub cf::map::normalise;	116	sub cf::map::normalise;
106		117
…		…
117	=item $cf::RUNTIME	128	=item $cf::RUNTIME
118		129
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	131	every server tick.
121		132
122	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		136
124	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
126		141
127	=item $cf::NOW	142	=item $cf::NOW
128		143
129	The time of the last (current) server tick.	144	The time of the last (current) server tick.
130		145
131	=item $cf::TICK	146	=item $cf::TICK
132		147
133	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
134		159
135	=item %cf::CFG	160	=item %cf::CFG
136		161
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	163	from wherever your confdir points to.
…		…
152	my $msg = join "", @_;	177	my $msg = join "", @_;
153		178
154	$msg .= "\n"	179	$msg .= "\n"
155	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
156		181
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		183
159	utf8::encode $msg;	184	utf8::encode $msg;
160	LOG llevError, $msg;	185	LOG llevError, $msg;
161	};	186	};
162	}	187	}
…		…
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		196
171	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	198	# within the Safe compartment.
173	for my $pkg (qw(	199	for my $pkg (qw(
174	cf::global cf::attachable	200	cf::global cf::attachable
…		…
182	}	208	}
183		209
184	$Event::DIED = sub {	210	$Event::DIED = sub {
185	warn "error in event callback: @_";	211	warn "error in event callback: @_";
186	};	212	};
		213
		214	#############################################################################
187		215
188	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
189		217
190	=over 4	218	=over 4
191		219
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	239	$d
212	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
213	}	241	}
214		242
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
218		244
219	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
220		246
221	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
222		248
223	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
224		257
225	=item cf::lock_wait $string	258	=item cf::lock_wait $string
226		259
227	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
228		261
…		…
234	returned.	267	returned.
235		268
236	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
238		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
239	=cut	276	=cut
240		277
241	our %LOCK;	278	our %LOCK;
242		279
243	sub lock_wait($) {	280	sub lock_wait($) {
…		…
260		297
261	Coro::guard {	298	Coro::guard {
262	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
264	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
265	}	308	}
266		309
267	sub freeze_mainloop {	310	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
269		312
…		…
284		327
285	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
286		329
287	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
288		331
289	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
292		336
293	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
296	fast or be very important.	340	fast or be very important.
…		…
299		343
300	sub sync_job(&) {	344	sub sync_job(&) {
301	my ($job) = @_;	345	my ($job) = @_;
302		346
303	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
304	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
306		352
307	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
319		365
320	while ($busy) {	366	while ($busy) {
321	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
322	}	368	}
323		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
324	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
325	} else {	378	} else {
326	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
327		380
328	$job->()	381	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
348		401
349	$coro	402	$coro
350	}	403	}
351		404
352	sub write_runtime {	405	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		406
355	my $runtime = cf::localdir . "/runtime";	407	Executes the given code block with the given arguments in a seperate
		408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
356		411
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
358	or return;
359		413
360	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		416
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
365	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
366		421
367	# always fsync - this file is important	422	if (my $pid = fork) {
368	aio_fsync $fh
369	and return;
370
371	close $fh	423	close $fh2;
372	or return;
373		424
374	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
375	and return;	426	$res = Coro::Storable::thaw $res;
376		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
377	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
378	}	563	}
379		564
380	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
381		566
382	Log a datalog packet of the given type with the given key-value pairs.	567	Log a datalog packet of the given type with the given key-value pairs.
…		…
400	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
402		587
403	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	590	Crossfire TRT).
406		591
407	=over 4	592	=over 4
408		593
409	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
410		595
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
574		759
575	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		764
580	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	766	my $pkg = shift @arg;
582		767
583	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
613	}	798	}
614		799
615	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
616	} else {	801	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	803	}
619		804
620	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
621	}	806	}
622		807
…		…
624	if (ref $_[0]) {	809	if (ref $_[0]) {
625	_object_attach @_;	810	_object_attach @_;
626	} else {	811	} else {
627	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
628	}	813	}
		814	_recalc_want;
629	};	815	};
630		816
631	# all those should be optimised	817	# all those should be optimised
632	sub cf::attachable::detach {	818	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
637	reattach ($obj);	823	reattach ($obj);
638	} else {	824	} else {
639	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
640	}	826	}
		827	_recalc_want;
641	};	828	};
642		829
643	sub cf::attachable::attached {	830	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
645		832
…		…
818	or return;	1005	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1007	}
821		1008
822	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1011	return ($data, $av);
825	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
826		1019
827	#############################################################################	1020	#############################################################################
828	# command handling &c	1021	# command handling &c
829		1022
830	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1037	}
845		1038
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1040
848	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
849		1046
850	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
851	called.	1048	called.
852		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
853	=cut	1061	=cut
854		1062
855	sub register_extcmd {	1063	sub register_extcmd {
856	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
857		1065
858	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
859	}	1073	}
860		1074
861	cf::player->attach (	1075	cf::player->attach (
862	on_command => sub {	1076	on_command => sub {
863	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
888		1102
889	cf::override;	1103	cf::override;
890	},	1104	},
891	);	1105	);
892		1106
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
928	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1112	next unless -r $path;
930	eval {	1113
931	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
932	1	1171	}
933	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
934	}	1177	};
935	}	1178	}
936		1179
937	#############################################################################	1180	#############################################################################
938		1181
		1182	=back
		1183
939	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
940		1185
941	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
942		1187
943	=cut	1188	=cut
…		…
955	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
956		1201
957	=cut	1202	=cut
958		1203
959	sub playerdir($) {	1204	sub playerdir($) {
960	cf::localdir	1205	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1207	}
966		1208
967	sub path($) {	1209	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1088	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1089		1331
1090	=cut	1332	=cut
1091		1333
1092	sub list_logins {	1334	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1336	or return [];
1095		1337
1096	my @logins;	1338	my @logins;
1097		1339
1098	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1133	}	1375	}
1134		1376
1135	\@paths	1377	\@paths
1136	}	1378	}
1137		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1138	=item $player->ext_reply ($msgid, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1139		1414
1140	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1141		1416
1142	=cut	1417	=cut
1143		1418
1144	sub ext_reply($$%) {	1419	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1146		1421
1147	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1148
1149	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1150	}	1424	}
1151		1425
1152	=item $player->ext_event ($type, %msg)	1426	=item $player->ext_event ($type, %msg)
1153		1427
…		…
1169		1443
1170	package cf::region;	1444	package cf::region;
1171		1445
1172	=item cf::region::find_by_path $path	1446	=item cf::region::find_by_path $path
1173		1447
1174	Tries to decuce the probable region for a map knowing only its path.	1448	Tries to decuce the likely region for a map knowing only its path.
1175		1449
1176	=cut	1450	=cut
1177		1451
1178	sub find_by_path($) {	1452	sub find_by_path($) {
1179	my ($path) = @_;	1453	my ($path) = @_;
…		…
1253	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1254		1528
1255	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1256	local $self->{path};	1530	local $self->{path};
1257	local $self->{load_path};	1531	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1532
1261	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1262	}	1534	}
1263		1535
1264	sub normalise {	1536	sub normalise {
…		…
1336		1608
1337	# the original (read-only) location	1609	# the original (read-only) location
1338	sub load_path {	1610	sub load_path {
1339	my ($self) = @_;	1611	my ($self) = @_;
1340		1612
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1342	}	1614	}
1343		1615
1344	# the temporary/swap location	1616	# the temporary/swap location
1345	sub save_path {	1617	sub save_path {
1346	my ($self) = @_;	1618	my ($self) = @_;
1347		1619
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1350	}	1622	}
1351		1623
1352	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1353	sub uniq_path {	1625	sub uniq_path {
1354	my ($self) = @_;	1626	my ($self) = @_;
1355		1627
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1358	}	1630	}
1359		1631
1360	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1361	# all maps in C++...	1633	# all maps in C++...
1362	sub change_all_map_light {	1634	sub change_all_map_light {
1363	my ($change) = @_;	1635	my ($change) = @_;
1364		1636
1365	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
		1639	}
		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
1367	}	1647	}
1368		1648
1369	sub unlink_save {	1649	sub unlink_save {
1370	my ($self) = @_;	1650	my ($self) = @_;
1371		1651
…		…
1429	$self->load_header_orig	1709	$self->load_header_orig
1430	or return;	1710	or return;
1431	$self->prepare_orig;	1711	$self->prepare_orig;
1432	}	1712	}
1433		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
1434	$self->default_region (cf::region::find_by_path $self->{path})	1717	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1718	unless $self->default_region;
1436		1719
1437	1	1720	1
1438	}	1721	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1454		1737
1455	$map->load_header	1738	$map->load_header
1456	or return;	1739	or return;
1457		1740
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1744	$map->reset;
1462	undef $guard;	1745	undef $guard;
1463	return find $path;	1746	return find $path;
…		…
1474	my ($self) = @_;	1757	my ($self) = @_;
1475		1758
1476	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1477		1760
1478	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1480		1765
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1767
1483	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1484		1769
1485	$self->alloc;	1770	$self->alloc;
1486		1771
1487	$self->pre_load;	1772	$self->pre_load;
1488	Coro::cede;
1489
1490	$self->_load_objects ($self->{load_path}, 1)
1491	or return;
1492
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1494	if delete $self->{load_original};
1495
1496	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {
1499	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);
1501	}
1502	}
1503
1504	Coro::cede;
1505	# now do the right thing for maps
1506	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;	1773	Coro::cede;
1514	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1793	unless $self->difficulty;
1517	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1518	$self->activate;	1803	$self->activate;
1519	Coro::cede;	1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1807	}
1521		1808
1522	$self->post_load;	1809	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1810	}
1527		1811
1528	sub customise_for {	1812	sub customise_for {
1529	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1530		1814
1531	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1533		1820
1534	$self	1821	$self
1535	}	1822	}
1536		1823
1537	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1648		1935
1649	sub reset_at {	1936	sub reset_at {
1650	my ($self) = @_;	1937	my ($self) = @_;
1651		1938
1652	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1655		1941
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		1944
…		…
1669	my ($self) = @_;	1955	my ($self) = @_;
1670		1956
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		1958
1673	return if $self->players;	1959	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		1960
1676	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
1677		1962
1678	$self->in_memory (cf::MAP_SWAPPED);	1963	$self->in_memory (cf::MAP_SWAPPED);
1679		1964
1680	# need to save uniques path	1965	# need to save uniques path
1681	unless ($self->{deny_save}) {	1966	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1714		1999
1715	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1716	}	2001	}
1717		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1718	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1719		2040
1720	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2042	instantiated unique items. May block.
1722		2043
1723	=cut	2044	=cut
1724		2045
1725	sub unique_maps() {	2046	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1727	or return;	2048	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2049	utf8::decode $_;
1733	next if /\.pst$/;	2050	/\.map$/
1734	next unless /^$PATH_SEP/o;	2051	? normalise $_
1735		2052	: ()
1736	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2054	]
1738
1739	\@paths
1740	}	2055	}
1741		2056
1742	package cf;	2057	package cf;
1743		2058
1744	=back	2059	=back
…		…
1790		2105
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2107
1793	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1795	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1798	}	2127	}
1799	}	2128	}
1800		2129
1801	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1802		2131
…		…
1850	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1851		2180
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2182
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1856		2185
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2187	}
1859		2188
1860	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1862		2193
1863	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1864		2195
1865	unless ($map) {	2196	unless ($map) {
1866	# restore original map position	2197	# restore original map position
…		…
1889		2220
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1892	}	2223	}
1893		2224
1894	cf::player->attach (
1895	on_logout => sub {
1896	my ($pl) = @_;
1897
1898	# abort map switching before logout
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907
1908	# try to abort aborted map switching on player login :)
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925
1926	=item $player_object->goto ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1927		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1928	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1929		2235
1930	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2241
1933	$self->enter_link;	2242	$self->enter_link;
1934		2243
1935	(async {	2244	(async {
1936	my $map = eval {	2245	my $map = eval {
1937	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
		2254
1939	$map	2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2261	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1944	})->prio (1);	2267	})->prio (1);
1945	}	2268	}
1946		2269
1947	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1948		2271
…		…
1987		2310
1988	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1989		2312
1990	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1993		2316
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2319	undef $fh;
1997	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
2053		2376
2054	utf8::encode $text;	2377	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2379	}
2057		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
2058	=item $client->ext_event ($type, %msg)	2419	=item $client->ext_event ($type, %msg)
2059		2420
2060	Sends an exti event to the client.	2421	Sends an ext event to the client.
2061		2422
2062	=cut	2423	=cut
2063		2424
2064	sub cf::client::ext_event($$%) {	2425	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2426	my ($self, $type, %msg) = @_;
…		…
2072		2433
2073	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2437
2077	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2439	become reliable at some point in the future.
2079		2440
2080	=cut	2441	=cut
2081		2442
2082	sub cf::client::query {	2443	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2452	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2454
2094	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
2096	}	2459	}
2097		2460
2098	cf::client->attach (	2461	cf::client->attach (
2099	on_reply => sub {	2462	on_reply => sub {
2100	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
2114	$ns->send_packet ($ns->{query_queue}[0][0]);	2477	$ns->send_packet ($ns->{query_queue}[0][0]);
2115	} else {	2478	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2480	}
2118	}	2481	}
		2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
2119	},	2500	},
2120	);	2501	);
2121		2502
2122	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2123		2504
…		…
2262	=back	2643	=back
2263		2644
2264	=cut	2645	=cut
2265		2646
2266	#############################################################################	2647	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	2648	# the server's init and main functions
2437		2649
2438	sub load_facedata($) {	2650	sub load_facedata($) {
2439	my ($path) = @_;	2651	my ($path) = @_;
2440		2652
…		…
2485	}	2697	}
2486		2698
2487	1	2699	1
2488	}	2700	}
2489		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
2490	sub reload_facedata {	2707	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	2708	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	2709	or die "unable to load facedata\n";
2493	}	2710	}
2494		2711
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	2712	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	2713	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	2714	or die "unable to load archetypes\n";
2503	}	2715	}
2504		2716
2505	sub reload_treasures {	2717	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	2718	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	2719	or die "unable to load treasurelists\n";
2508	}	2720	}
2509		2721
2510	sub reload_resources {	2722	sub reload_resources {
2511	warn "reloading resource files...\n";	2723	warn "reloading resource files...\n";
2512		2724
2513	reload_regions;	2725	reload_regions;
2514	reload_facedata;	2726	reload_facedata;
		2727	#reload_archetypes;#d#
2515	reload_archetypes;	2728	reload_archetypes;
2516	reload_treasures;	2729	reload_treasures;
2517		2730
2518	warn "finished reloading resource files\n";	2731	warn "finished reloading resource files\n";
2519	}	2732	}
…		…
2521	sub init {	2734	sub init {
2522	reload_resources;	2735	reload_resources;
2523	}	2736	}
2524		2737
2525	sub cfg_load {	2738	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	2740	or return;
2528		2741
2529	local $/;	2742	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
2531		2744
…		…
2576	},	2789	},
2577	);	2790	);
2578	}	2791	}
2579	}	2792	}
2580		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
2581	sub emergency_save() {	2832	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	2833	my $freeze_guard = cf::freeze_mainloop;
2583		2834
2584	warn "enter emergency perl save\n";	2835	warn "enter emergency perl save\n";
2585		2836
…		…
2660	%EXT_CORO = ();	2911	%EXT_CORO = ();
2661		2912
2662	warn "removing commands";	2913	warn "removing commands";
2663	%COMMAND = ();	2914	%COMMAND = ();
2664		2915
2665	warn "removing ext commands";	2916	warn "removing ext/exti commands";
2666	%EXTCMD = ();	2917	%EXTCMD = ();
		2918	%EXTICMD = ();
2667		2919
2668	warn "unloading/nuking all extensions";	2920	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	2921	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	2922	warn "... unloading $pkg";
2671		2923
…		…
2701	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		2955
2704	warn "unloading cf.pm \"a bit\"";	2956	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
2706		2959
2707	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
2708	# and global variables created in xs	2961	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
2710		2963
…		…
2788	my $signal = new Coro::Signal;	3041	my $signal = new Coro::Signal;
2789	push @WAIT_FOR_TICK_BEGIN, $signal;	3042	push @WAIT_FOR_TICK_BEGIN, $signal;
2790	$signal->wait;	3043	$signal->wait;
2791	}	3044	}
2792		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
2793	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
2794	reentrant => 0,	3049	reentrant => 0,
2795	parked => 1,	3050	parked => 1,
2796	prio => 0,	3051	prio => 0,
2797	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
…		…
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	3057	unless ++$bug_warning > 10;
2803	return;	3058	return;
2804	}	3059	}
2805		3060
2806	$NOW = Event::time;	3061	$NOW = $tick_start = Event::time;
2807		3062
2808	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
		3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3086	};
2809		3087
2810	$RUNTIME += $TICK;	3088	$RUNTIME += $TICK;
2811	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2812		3090
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2819	}	3097	}
2820		3098
2821	# my $AFTER = Event::time;	3099	# my $AFTER = Event::time;
2822	# warn $AFTER - $NOW;#d#	3100	# warn $AFTER - $NOW;#d#
2823		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2824	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2826		3113
2827	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
2829		3116
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3117	$LOAD = ($NOW - $tick_start) / $TICK;
2831	$sig->send;	3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2832	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;
2835	}
2836		3119
2837	_post_tick;	3120	_post_tick;
		3121
		3122
2838	},	3123	},
2839	);	3124	);
2840		3125
2841	{	3126	{
2842	BDB::max_poll_time $TICK * 0.1;	3127	BDB::max_poll_time $TICK * 0.1;
…		…
2870		3155
2871	cf::sync_job {	3156	cf::sync_job {
2872	eval {	3157	eval {
2873	BDB::db_env_open	3158	BDB::db_env_open
2874	$DB_ENV,	3159	$DB_ENV,
2875	$BDB_ENV_DIR,	3160	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	3163	0666;
2879		3164
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881		3166
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;	3168	$DB_ENV->set_lk_detect;
2884	};	3169	};
2885		3170
…		…
2901	prio => 6,	3186	prio => 6,
2902	cb => \&IO::AIO::poll_cb,	3187	cb => \&IO::AIO::poll_cb,
2903	);	3188	);
2904	}	3189	}
2905		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
		3226	}
		3227	}
		3228
2906	# load additional modules	3229	# load additional modules
2907	use cf::pod;	3230	use cf::pod;
2908		3231
2909	END { cf::emergency_save }	3232	END { cf::emergency_save }
2910		3233

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