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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.252 by root, Wed Apr 18 15:28:18 2007 UTC vs.
Revision 1.295 by root, Wed Jul 4 05:08:15 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 $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[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) = @_;
…		…
872	cf::override;	1086	cf::override;
873	},	1087	},
874	on_extcmd => sub {	1088	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
876		1090
877	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1092
879	if (ref $msg) {	1093	if (ref $msg) {
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
881	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
882	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
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<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1138	=item $player->ext_reply ($msgid, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1139		1431
1140	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1141		1433
1142	=cut	1434	=cut
1143		1435
1144	sub ext_reply($$%) {	1436	sub ext_reply($$%) {
1145	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1146		1438
1147	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1148		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1441	}
1151		1442
1152	=item $player->ext_event ($type, %msg)	1443	=item $player->ext_event ($type, %msg)
1153		1444
1154	Sends an ext event to the client.	1445	Sends an ext event to the client.
…		…
1169		1460
1170	package cf::region;	1461	package cf::region;
1171		1462
1172	=item cf::region::find_by_path $path	1463	=item cf::region::find_by_path $path
1173		1464
1174	Tries to decuce the probable region for a map knowing only its path.	1465	Tries to decuce the likely region for a map knowing only its path.
1175		1466
1176	=cut	1467	=cut
1177		1468
1178	sub find_by_path($) {	1469	sub find_by_path($) {
1179	my ($path) = @_;	1470	my ($path) = @_;
…		…
1253	my ($self, $merge) = @_;	1544	my ($self, $merge) = @_;
1254		1545
1255	# we have to keep some variables in memory intact	1546	# we have to keep some variables in memory intact
1256	local $self->{path};	1547	local $self->{path};
1257	local $self->{load_path};	1548	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1549
1261	$self->SUPER::thawer_merge ($merge);	1550	$self->SUPER::thawer_merge ($merge);
1262	}	1551	}
1263		1552
1264	sub normalise {	1553	sub normalise {
…		…
1336		1625
1337	# the original (read-only) location	1626	# the original (read-only) location
1338	sub load_path {	1627	sub load_path {
1339	my ($self) = @_;	1628	my ($self) = @_;
1340		1629
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1630	"$MAPDIR/$self->{path}.map"
1342	}	1631	}
1343		1632
1344	# the temporary/swap location	1633	# the temporary/swap location
1345	sub save_path {	1634	sub save_path {
1346	my ($self) = @_;	1635	my ($self) = @_;
1347		1636
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1638	"$TMPDIR/$path.map"
1350	}	1639	}
1351		1640
1352	# the unique path, undef == no special unique path	1641	# the unique path, undef == no special unique path
1353	sub uniq_path {	1642	sub uniq_path {
1354	my ($self) = @_;	1643	my ($self) = @_;
1355		1644
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1646	"$UNIQUEDIR/$path"
1358	}	1647	}
1359		1648
1360	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1361	# all maps in C++...	1650	# all maps in C++...
1362	sub change_all_map_light {	1651	sub change_all_map_light {
1363	my ($change) = @_;	1652	my ($change) = @_;
1364		1653
1365	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
		1656	}
		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
1367	}	1664	}
1368		1665
1369	sub unlink_save {	1666	sub unlink_save {
1370	my ($self) = @_;	1667	my ($self) = @_;
1371		1668
…		…
1429	$self->load_header_orig	1726	$self->load_header_orig
1430	or return;	1727	or return;
1431	$self->prepare_orig;	1728	$self->prepare_orig;
1432	}	1729	}
1433		1730
		1731	$self->{deny_reset} = 1
		1732	if $self->no_reset;
		1733
1434	$self->default_region (cf::region::find_by_path $self->{path})	1734	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1735	unless $self->default_region;
1436		1736
1437	1	1737	1
1438	}	1738	}
…		…
1453	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1454		1754
1455	$map->load_header	1755	$map->load_header
1456	or return;	1756	or return;
1457		1757
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1759	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1760	#$cf::WAIT_FOR_TICK->wait;
1461	$map->reset;	1761	$map->reset;
1462	undef $guard;	1762	undef $guard;
1463	return find $path;	1763	return find $path;
…		…
1474	my ($self) = @_;	1774	my ($self) = @_;
1475		1775
1476	local $self->{deny_reset} = 1; # loading can take a long time	1776	local $self->{deny_reset} = 1; # loading can take a long time
1477		1777
1478	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1781	my $guard = cf::lock_acquire "map_load:$path";
1480		1782
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1482		1784
1483	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1484		1786
1485	$self->alloc;	1787	$self->alloc;
1486		1788
1487	$self->pre_load;	1789	$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;	1790	Coro::cede;
1514	$self->set_darkness_map;	1791
		1792	$self->_load_objects ($self->{load_path}, 1)
		1793	or return;
		1794
		1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1796	if delete $self->{load_original};
		1797
		1798	if (my $uniq = $self->uniq_path) {
		1799	utf8::encode $uniq;
		1800	if (aio_open $uniq, O_RDONLY, 0) {
		1801	$self->clear_unique_items;
		1802	$self->_load_objects ($uniq, 0);
		1803	}
		1804	}
		1805
		1806	Coro::cede;
		1807	# now do the right thing for maps
		1808	$self->link_multipart_objects;
1515	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1810	unless $self->difficulty;
1517	Coro::cede;	1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1518	$self->activate;	1820	$self->activate;
1519	Coro::cede;	1821	}
		1822
		1823	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1824	}
1521		1825
1522	$self->post_load;	1826	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1827	}
1527		1828
1528	sub customise_for {	1829	sub customise_for {
1529	my ($self, $ob) = @_;	1830	my ($self, $ob) = @_;
1530		1831
1531	return find "~" . $ob->name . "/" . $self->{path}	1832	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
1533		1837
1534	$self	1838	$self
1535	}	1839	}
1536		1840
1537	# find and load all maps in the 3x3 area around a map	1841	# find and load all maps in the 3x3 area around a map
…		…
1648		1952
1649	sub reset_at {	1953	sub reset_at {
1650	my ($self) = @_;	1954	my ($self) = @_;
1651		1955
1652	# TODO: safety, remove and allow resettable per-player maps	1956	# 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};	1957	return 1e99 if $self->{deny_reset};
1655		1958
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		1961
…		…
1669	my ($self) = @_;	1972	my ($self) = @_;
1670		1973
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		1975
1673	return if $self->players;	1976	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		1977
1676	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
1677		1979
1678	$self->in_memory (cf::MAP_SWAPPED);	1980	$self->in_memory (cf::MAP_SWAPPED);
1679		1981
1680	# need to save uniques path	1982	# need to save uniques path
1681	unless ($self->{deny_save}) {	1983	unless ($self->{deny_save}) {
…		…
1713	$cf::MAP{$self->path} = $self;	2015	$cf::MAP{$self->path} = $self;
1714		2016
1715	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1716	}	2018	}
1717		2019
		2020	=item $maps = cf::map::tmp_maps
		2021
		2022	Returns an arrayref with all map paths of currently instantiated and saved
		2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
		2028	[
		2029	map {
		2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
		2036	}
		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
1718	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1719		2057
1720	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2059	instantiated unique items. May block.
1722		2060
1723	=cut	2061	=cut
1724		2062
1725	sub unique_maps() {	2063	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2064	[
1727	or return;	2065	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2066	utf8::decode $_;
1733	next if /\.pst$/;	2067	/\.map$/
1734	next unless /^$PATH_SEP/o;	2068	? normalise $_
1735		2069	: ()
1736	push @paths, cf::map::normalise $_;	2070	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2071	]
1738
1739	\@paths
1740	}	2072	}
1741		2073
1742	package cf;	2074	package cf;
1743		2075
1744	=back	2076	=back
…		…
1790		2122
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2124
1793	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1795	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1798	}	2144	}
1799	}	2145	}
1800		2146
1801	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1802		2148
…		…
1850	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1851		2197
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2199
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1856		2202
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2204	}
1859		2205
1860	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1862		2210
1863	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1864		2212
1865	unless ($map) {	2213	unless ($map) {
1866	# restore original map position	2214	# restore original map position
…		…
1889		2237
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1892	}	2240	}
1893		2241
1894	cf::player->attach (
1895	on_logout => sub {
1896	my ($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)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1927		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1928	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1929		2252
1930	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2258
1933	$self->enter_link;	2259	$self->enter_link;
1934		2260
1935	(async {	2261	(async {
1936	my $map = eval {	2262	my $map = eval {
1937	my $map = cf::map::find $path;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
		2267	$map = $check->($map) if $check && $map;
		2268	} else {
		2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
		2271
1939	$map	2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2278	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1944	})->prio (1);	2284	})->prio (1);
1945	}	2285	}
1946		2286
1947	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1948		2288
…		…
1987		2327
1988	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1989		2329
1990	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2332	my $meta = "$RANDOMDIR/$md5.meta";
1993		2333
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2336	undef $fh;
1997	aio_rename "$meta~", $meta;	2337	aio_rename "$meta~", $meta;
…		…
2053		2393
2054	utf8::encode $text;	2394	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2396	}
2057		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	return unless @extra || length $msg;
		2413
		2414	if ($self->can_msg) {
		2415	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2416	} else {
		2417	# replace some tags by gcfclient-compatible ones
		2418	for ($msg) {
		2419	1 while
		2420	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2421	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2422	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2423	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2424	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2425	}
		2426
		2427	if ($color >= 0) {
		2428	if (0 && $msg =~ /\[/) {
		2429	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2430	} else {
		2431	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2432	$self->send_packet ("drawinfo $color $msg")
		2433	}
		2434	}
		2435	}
		2436	}
		2437
2058	=item $client->ext_event ($type, %msg)	2438	=item $client->ext_event ($type, %msg)
2059		2439
2060	Sends an exti event to the client.	2440	Sends an ext event to the client.
2061		2441
2062	=cut	2442	=cut
2063		2443
2064	sub cf::client::ext_event($$%) {	2444	sub cf::client::ext_event($$%) {
2065	my ($self, $type, %msg) = @_;	2445	my ($self, $type, %msg) = @_;
2066		2446
2067	$msg{msgtype} = "event_$type";	2447	$msg{msgtype} = "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2448	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2069	}	2449	}
2070		2450
2071	=item $success = $client->query ($flags, "text", \&cb)	2451	=item $success = $client->query ($flags, "text", \&cb)
2072		2452
2073	Queues a query to the client, calling the given callback with	2453	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>,	2454	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>.	2455	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2456
2077	Queries can fail, so check the return code. Or don't, as queries will become	2457	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2458	become reliable at some point in the future.
2079		2459
2080	=cut	2460	=cut
2081		2461
2082	sub cf::client::query {	2462	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2463	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2471	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2472	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2473
2094	$self->send_packet ($self->{query_queue}[0][0])	2474	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2475	if @{ $self->{query_queue} } == 1;
		2476
		2477	1
2096	}	2478	}
2097		2479
2098	cf::client->attach (	2480	cf::client->attach (
		2481	on_connect => sub {
		2482	my ($ns) = @_;
		2483
		2484	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2485	},
2099	on_reply => sub {	2486	on_reply => sub {
2100	my ($ns, $msg) = @_;	2487	my ($ns, $msg) = @_;
2101		2488
2102	# this weird shuffling is so that direct followup queries	2489	# this weird shuffling is so that direct followup queries
2103	# get handled first	2490	# get handled first
…		…
2114	$ns->send_packet ($ns->{query_queue}[0][0]);	2501	$ns->send_packet ($ns->{query_queue}[0][0]);
2115	} else {	2502	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2503	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2504	}
2118	}	2505	}
		2506	},
		2507	on_exticmd => sub {
		2508	my ($ns, $buf) = @_;
		2509
		2510	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2511
		2512	if (ref $msg) {
		2513	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2514	if (my %reply = $cb->($ns, $msg)) {
		2515	$reply{msgid} = $msg->{msgid};
		2516	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2517	}
		2518	}
		2519	} else {
		2520	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2521	}
		2522
		2523	cf::override;
2119	},	2524	},
2120	);	2525	);
2121		2526
2122	=item $client->async (\&cb)	2527	=item $client->async (\&cb)
2123		2528
…		…
2262	=back	2667	=back
2263		2668
2264	=cut	2669	=cut
2265		2670
2266	#############################################################################	2671	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$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	2672	# the server's init and main functions
2437		2673
2438	sub load_facedata($) {	2674	sub load_facedata($) {
2439	my ($path) = @_;	2675	my ($path) = @_;
2440		2676
…		…
2485	}	2721	}
2486		2722
2487	1	2723	1
2488	}	2724	}
2489		2725
		2726	sub reload_regions {
		2727	load_resource_file "$MAPDIR/regions"
		2728	or die "unable to load regions file\n";
		2729	}
		2730
2490	sub reload_facedata {	2731	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	2732	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	2733	or die "unable to load facedata\n";
2493	}	2734	}
2494		2735
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 {	2736	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	2737	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	2738	or die "unable to load archetypes\n";
		2739	#d# NEED to laod twice to resolve forward references
		2740	# this really needs to be done in an extra post-pass
		2741	# (which needs to be synchronous, so solve it differently)
		2742	load_resource_file "$DATADIR/archetypes"
		2743	or die "unable to load archetypes\n";
2503	}	2744	}
2504		2745
2505	sub reload_treasures {	2746	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	2747	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	2748	or die "unable to load treasurelists\n";
2508	}	2749	}
2509		2750
2510	sub reload_resources {	2751	sub reload_resources {
2511	warn "reloading resource files...\n";	2752	warn "reloading resource files...\n";
2512		2753
2513	reload_regions;	2754	reload_regions;
2514	reload_facedata;	2755	reload_facedata;
		2756	#reload_archetypes;#d#
2515	reload_archetypes;	2757	reload_archetypes;
2516	reload_treasures;	2758	reload_treasures;
2517		2759
2518	warn "finished reloading resource files\n";	2760	warn "finished reloading resource files\n";
2519	}	2761	}
…		…
2521	sub init {	2763	sub init {
2522	reload_resources;	2764	reload_resources;
2523	}	2765	}
2524		2766
2525	sub cfg_load {	2767	sub cfg_load {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	2768	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	2769	or return;
2528		2770
2529	local $/;	2771	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	2772	*CFG = YAML::Syck::Load <$fh>;
2531		2773
…		…
2576	},	2818	},
2577	);	2819	);
2578	}	2820	}
2579	}	2821	}
2580		2822
		2823	sub write_runtime {
		2824	my $runtime = "$LOCALDIR/runtime";
		2825
		2826	# first touch the runtime file to show we are still running:
		2827	# the fsync below can take a very very long time.
		2828
		2829	IO::AIO::aio_utime $runtime, undef, undef;
		2830
		2831	my $guard = cf::lock_acquire "write_runtime";
		2832
		2833	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2834	or return;
		2835
		2836	my $value = $cf::RUNTIME + 90 + 10;
		2837	# 10 is the runtime save interval, for a monotonic clock
		2838	# 60 allows for the watchdog to kill the server.
		2839
		2840	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2841	and return;
		2842
		2843	# always fsync - this file is important
		2844	aio_fsync $fh
		2845	and return;
		2846
		2847	# touch it again to show we are up-to-date
		2848	aio_utime $fh, undef, undef;
		2849
		2850	close $fh
		2851	or return;
		2852
		2853	aio_rename "$runtime~", $runtime
		2854	and return;
		2855
		2856	warn "runtime file written.\n";
		2857
		2858	1
		2859	}
		2860
2581	sub emergency_save() {	2861	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	2862	my $freeze_guard = cf::freeze_mainloop;
2583		2863
2584	warn "enter emergency perl save\n";	2864	warn "enter emergency perl save\n";
2585		2865
…		…
2660	%EXT_CORO = ();	2940	%EXT_CORO = ();
2661		2941
2662	warn "removing commands";	2942	warn "removing commands";
2663	%COMMAND = ();	2943	%COMMAND = ();
2664		2944
2665	warn "removing ext commands";	2945	warn "removing ext/exti commands";
2666	%EXTCMD = ();	2946	%EXTCMD = ();
		2947	%EXTICMD = ();
2667		2948
2668	warn "unloading/nuking all extensions";	2949	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	2950	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	2951	warn "... unloading $pkg";
2671		2952
…		…
2789	my $signal = new Coro::Signal;	3070	my $signal = new Coro::Signal;
2790	push @WAIT_FOR_TICK_BEGIN, $signal;	3071	push @WAIT_FOR_TICK_BEGIN, $signal;
2791	$signal->wait;	3072	$signal->wait;
2792	}	3073	}
2793		3074
		3075	my $min = 1e6;#d#
		3076	my $avg = 10;
2794	$TICK_WATCHER = Event->timer (	3077	$TICK_WATCHER = Event->timer (
2795	reentrant => 0,	3078	reentrant => 0,
2796	parked => 1,	3079	parked => 1,
2797	prio => 0,	3080	prio => 0,
2798	at => $NEXT_TICK || $TICK,	3081	at => $NEXT_TICK || $TICK,
…		…
2802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3085	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2803	unless ++$bug_warning > 10;	3086	unless ++$bug_warning > 10;
2804	return;	3087	return;
2805	}	3088	}
2806		3089
2807	$NOW = Event::time;	3090	$NOW = $tick_start = Event::time;
2808		3091
2809	cf::server_tick; # one server iteration	3092	cf::server_tick; # one server iteration
		3093
		3094	0 && sync_job {#d#
		3095	for(1..10) {
		3096	my $t = Event::time;
		3097	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3098	or die;
		3099
		3100	$map->width (50);
		3101	$map->height (50);
		3102	$map->alloc;
		3103	$map->_load_objects ("/tmp/x.map", 1);
		3104	my $t = Event::time - $t;
		3105
		3106	#next unless $t < 0.0013;#d#
		3107	if ($t < $min) {
		3108	$min = $t;
		3109	}
		3110	$avg = $avg * 0.99 + $t * 0.01;
		3111	}
		3112	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3113	exit 0;
		3114	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3115	};
2810		3116
2811	$RUNTIME += $TICK;	3117	$RUNTIME += $TICK;
2812	$NEXT_TICK += $TICK;	3118	$NEXT_TICK += $TICK;
2813		3119
2814	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3120	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2820	}	3126	}
2821		3127
2822	# my $AFTER = Event::time;	3128	# my $AFTER = Event::time;
2823	# warn $AFTER - $NOW;#d#	3129	# warn $AFTER - $NOW;#d#
2824		3130
		3131	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3132	$sig->send;
		3133	}
		3134	while (my $sig = shift @WAIT_FOR_TICK) {
		3135	$sig->send;
		3136	}
		3137
		3138	$NOW = Event::time;
		3139
2825	# if we are delayed by four ticks or more, skip them all	3140	# if we are delayed by four ticks or more, skip them all
2826	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3141	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2827		3142
2828	$TICK_WATCHER->at ($NEXT_TICK);	3143	$TICK_WATCHER->at ($NEXT_TICK);
2829	$TICK_WATCHER->start;	3144	$TICK_WATCHER->start;
2830		3145
2831	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3146	$LOAD = ($NOW - $tick_start) / $TICK;
2832	$sig->send;	3147	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2833	}
2834	while (my $sig = shift @WAIT_FOR_TICK) {
2835	$sig->send;
2836	}
2837		3148
2838	_post_tick;	3149	_post_tick;
		3150
		3151
2839	},	3152	},
2840	);	3153	);
2841		3154
2842	{	3155	{
2843	BDB::max_poll_time $TICK * 0.1;	3156	BDB::max_poll_time $TICK * 0.1;
…		…
2871		3184
2872	cf::sync_job {	3185	cf::sync_job {
2873	eval {	3186	eval {
2874	BDB::db_env_open	3187	BDB::db_env_open
2875	$DB_ENV,	3188	$DB_ENV,
2876	$BDB_ENV_DIR,	3189	$BDBDIR,
2877	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3190	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2878	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3191	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2879	0666;	3192	0666;
2880		3193
2881	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3194	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2882		3195
2883	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3196	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2884	$DB_ENV->set_lk_detect;	3197	$DB_ENV->set_lk_detect;
2885	};	3198	};
2886		3199
…		…
2902	prio => 6,	3215	prio => 6,
2903	cb => \&IO::AIO::poll_cb,	3216	cb => \&IO::AIO::poll_cb,
2904	);	3217	);
2905	}	3218	}
2906		3219
		3220	my $_log_backtrace;
		3221
		3222	sub _log_backtrace {
		3223	my ($msg, @addr) = @_;
		3224
		3225	$msg =~ s/\n//;
		3226
		3227	# limit the # of concurrent backtraces
		3228	if ($_log_backtrace < 2) {
		3229	++$_log_backtrace;
		3230	async {
		3231	my @bt = fork_call {
		3232	@addr = map { sprintf "%x", $_ } @addr;
		3233	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3234	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3235	or die "addr2line: $!";
		3236
		3237	my @funcs;
		3238	my @res = <$fh>;
		3239	chomp for @res;
		3240	while (@res) {
		3241	my ($func, $line) = splice @res, 0, 2, ();
		3242	push @funcs, "[$func] $line";
		3243	}
		3244
		3245	@funcs
		3246	};
		3247
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] $_\n" for @bt;
		3250	--$_log_backtrace;
		3251	};
		3252	} else {
		3253	LOG llevInfo, "[ABT] $msg\n";
		3254	LOG llevInfo, "[ABT] [suppressed]\n";
		3255	}
		3256	}
		3257
2907	# load additional modules	3258	# load additional modules
2908	use cf::pod;	3259	use cf::pod;
2909		3260
2910	END { cf::emergency_save }	3261	END { cf::emergency_save }
2911		3262

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