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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.248 by root, Tue Apr 17 18:40:32 2007 UTC vs.
Revision 1.292 by root, Tue Jul 3 00:54:57 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.61 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
21	use Coro::Storable;	23	use Coro::Storable;
22		24
		25	use JSON::XS 1.4 ();
23	use BDB ();	26	use BDB ();
24	use Data::Dumper;	27	use Data::Dumper;
25	use Digest::MD5;	28	use Digest::MD5;
26	use Fcntl;	29	use Fcntl;
27	use YAML::Syck ();	30	use YAML::Syck ();
…		…
47	our %COMMAND = ();	50	our %COMMAND = ();
48	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
49		52
50	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
54		58
55	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
56	our @EVENT;	60	our @EVENT;
57	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";
58		73
59	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	75	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
…		…
73	our $RUNTIME;	88	our $RUNTIME;
74		89
75	our %PLAYER; # all users	90	our %PLAYER; # all users
76	our %MAP; # all maps	91	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		93
81	# 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 ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		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 $tick_start; # for load detecting purposes
		100
84	binmode STDOUT;	101	binmode STDOUT;
85	binmode STDERR;	102	binmode STDERR;
86		103
87	# read virtual server time, if available	104	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
92	}	109	}
93		110
94	mkdir cf::localdir;	111	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir cf::localdir . "/" . cf::tmpdir;
97	mkdir cf::localdir . "/" . cf::uniquedir;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		113
101	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
102		115
103	sub cf::map::normalise;	116	sub cf::map::normalise;
104		117
…		…
115	=item $cf::RUNTIME	128	=item $cf::RUNTIME
116		129
117	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
118	every server tick.	131	every server tick.
119		132
120	=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
121		136
122	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
123	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.
124		141
125	=item $cf::NOW	142	=item $cf::NOW
126		143
127	The time of the last (current) server tick.	144	The time of the last (current) server tick.
128		145
129	=item $cf::TICK	146	=item $cf::TICK
130		147
131	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.
132		159
133	=item %cf::CFG	160	=item %cf::CFG
134		161
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
136	from wherever your confdir points to.	163	from wherever your confdir points to.
…		…
146	=cut	173	=cut
147		174
148	BEGIN {	175	BEGIN {
149	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	177	my $msg = join "", @_;
151	utf8::encode $msg;
152		178
153	$msg .= "\n"	179	$msg .= "\n"
154	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
155		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
156	LOG llevError, $msg;	185	LOG llevError, $msg;
157	};	186	};
158	}	187	}
159		188
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@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';
165	@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)
166		196
167	# 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
168	# within the Safe compartment.	198	# within the Safe compartment.
169	for my $pkg (qw(	199	for my $pkg (qw(
170	cf::global cf::attachable	200	cf::global cf::attachable
…		…
178	}	208	}
179		209
180	$Event::DIED = sub {	210	$Event::DIED = sub {
181	warn "error in event callback: @_";	211	warn "error in event callback: @_";
182	};	212	};
		213
		214	#############################################################################
183		215
184	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
185		217
186	=over 4	218	=over 4
187		219
…		…
206	$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;
207	$d	239	$d
208	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
209	}	241	}
210		242
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
212
213	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
214		244
215	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
216		246
217	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
218		248
219	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]) }
220		257
221	=item cf::lock_wait $string	258	=item cf::lock_wait $string
222		259
223	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
224		261
…		…
230	returned.	267	returned.
231		268
232	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
233	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
234		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
235	=cut	276	=cut
236		277
237	our %LOCK;	278	our %LOCK;
238		279
239	sub lock_wait($) {	280	sub lock_wait($) {
…		…
256		297
257	Coro::guard {	298	Coro::guard {
258	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
260	}	301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
261	}	308	}
262		309
263	sub freeze_mainloop {	310	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
265		312
…		…
280		327
281	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
282		329
283	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
284		331
285	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
288		336
289	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
292	fast or be very important.	340	fast or be very important.
…		…
295		343
296	sub sync_job(&) {	344	sub sync_job(&) {
297	my ($job) = @_;	345	my ($job) = @_;
298		346
299	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
300	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
302		352
303	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
315		365
316	while ($busy) {	366	while ($busy) {
317	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
318	}	368	}
319		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
320	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
321	} else {	378	} else {
322	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
323		380
324	$job->()	381	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
344		401
345	$coro	402	$coro
346	}	403	}
347		404
348	sub write_runtime {	405	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		406
351	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.
352		411
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	412	=cut
354	or return;
355		413
356	my $value = $cf::RUNTIME + 90 + 10;	414	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	415	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		416
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
361	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
362		421
363	# always fsync - this file is important	422	if (my $pid = fork) {
364	aio_fsync $fh
365	and return;
366
367	close $fh	423	close $fh2;
368	or return;
369		424
370	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
371	and return;	426	$res = Coro::Storable::thaw $res;
372		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
373	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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"
374	}	563	}
375		564
376	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
377		566
378	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.
…		…
396	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")
397	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
398		587
399	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>
400	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
401	crossfire+).	590	Crossfire TRT).
402		591
403	=over 4	592	=over 4
404		593
405	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
406		595
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
570		759
571	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		764
576	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	766	my $pkg = shift @arg;
578		767
579	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
609	}	798	}
610		799
611	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
612	} else {	801	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	803	}
615		804
616	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
617	}	806	}
618		807
…		…
620	if (ref $_[0]) {	809	if (ref $_[0]) {
621	_object_attach @_;	810	_object_attach @_;
622	} else {	811	} else {
623	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
624	}	813	}
		814	_recalc_want;
625	};	815	};
626		816
627	# all those should be optimised	817	# all those should be optimised
628	sub cf::attachable::detach {	818	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
633	reattach ($obj);	823	reattach ($obj);
634	} else {	824	} else {
635	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
636	}	826	}
		827	_recalc_want;
637	};	828	};
638		829
639	sub cf::attachable::attached {	830	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
641		832
…		…
814	or return;	1005	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1007	}
817		1008
818	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1011	return ($data, $av);
821	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
822		1019
823	#############################################################################	1020	#############################################################################
824	# command handling &c	1021	# command handling &c
825		1022
826	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1037	}
841		1038
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1040
844	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.
845		1046
846	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
847	called.	1048	called.
848		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
849	=cut	1061	=cut
850		1062
851	sub register_extcmd {	1063	sub register_extcmd {
852	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
853		1065
854	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
855	}	1073	}
856		1074
857	cf::player->attach (	1075	cf::player->attach (
858	on_command => sub {	1076	on_command => sub {
859	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
868	cf::override;	1086	cf::override;
869	},	1087	},
870	on_extcmd => sub {	1088	on_extcmd => sub {
871	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
872		1090
873	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
874		1092
875	if (ref $msg) {	1093	if (ref $msg) {
876	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
877	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
878	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
884		1102
885	cf::override;	1103	cf::override;
886	},	1104	},
887	);	1105	);
888		1106
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
924	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1112	next unless -r $path;
926	eval {	1113
927	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;
928	1	1171	}
929	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
930	}	1177	};
931	}	1178	}
932		1179
933	#############################################################################	1180	#############################################################################
934		1181
		1182	=back
		1183
935	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
936		1185
937	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
938		1187
939	=cut	1188	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
952		1201
953	=cut	1202	=cut
954		1203
955	sub playerdir($) {	1204	sub playerdir($) {
956	cf::localdir	1205	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1207	}
962		1208
963	sub path($) {	1209	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1085		1331
1086	=cut	1332	=cut
1087		1333
1088	sub list_logins {	1334	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1336	or return [];
1091		1337
1092	my @logins;	1338	my @logins;
1093		1339
1094	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1129	}	1375	}
1130		1376
1131	\@paths	1377	\@paths
1132	}	1378	}
1133		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	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
1134	=item $player->ext_reply ($msgid, %msg)	1427	=item $player->ext_reply ($msgid, %msg)
1135		1428
1136	Sends an ext reply to the player.	1429	Sends an ext reply to the player.
1137		1430
1138	=cut	1431	=cut
1139		1432
1140	sub ext_reply($$%) {	1433	sub ext_reply($$%) {
1141	my ($self, $id, %msg) = @_;	1434	my ($self, $id, %msg) = @_;
1142		1435
1143	$msg{msgid} = $id;	1436	$msg{msgid} = $id;
1144		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1145	$self->send ("ext " . cf::to_json \%msg);
1146	}	1438	}
1147		1439
1148	=item $player->ext_event ($type, %msg)	1440	=item $player->ext_event ($type, %msg)
1149		1441
1150	Sends an ext event to the client.	1442	Sends an ext event to the client.
…		…
1165		1457
1166	package cf::region;	1458	package cf::region;
1167		1459
1168	=item cf::region::find_by_path $path	1460	=item cf::region::find_by_path $path
1169		1461
1170	Tries to decuce the probable region for a map knowing only its path.	1462	Tries to decuce the likely region for a map knowing only its path.
1171		1463
1172	=cut	1464	=cut
1173		1465
1174	sub find_by_path($) {	1466	sub find_by_path($) {
1175	my ($path) = @_;	1467	my ($path) = @_;
…		…
1249	my ($self, $merge) = @_;	1541	my ($self, $merge) = @_;
1250		1542
1251	# we have to keep some variables in memory intact	1543	# we have to keep some variables in memory intact
1252	local $self->{path};	1544	local $self->{path};
1253	local $self->{load_path};	1545	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1546
1257	$self->SUPER::thawer_merge ($merge);	1547	$self->SUPER::thawer_merge ($merge);
1258	}	1548	}
1259		1549
1260	sub normalise {	1550	sub normalise {
…		…
1332		1622
1333	# the original (read-only) location	1623	# the original (read-only) location
1334	sub load_path {	1624	sub load_path {
1335	my ($self) = @_;	1625	my ($self) = @_;
1336		1626
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1627	"$MAPDIR/$self->{path}.map"
1338	}	1628	}
1339		1629
1340	# the temporary/swap location	1630	# the temporary/swap location
1341	sub save_path {	1631	sub save_path {
1342	my ($self) = @_;	1632	my ($self) = @_;
1343		1633
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1635	"$TMPDIR/$path.map"
1346	}	1636	}
1347		1637
1348	# the unique path, undef == no special unique path	1638	# the unique path, undef == no special unique path
1349	sub uniq_path {	1639	sub uniq_path {
1350	my ($self) = @_;	1640	my ($self) = @_;
1351		1641
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1643	"$UNIQUEDIR/$path"
1354	}	1644	}
1355		1645
1356	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1357	# all maps in C++...	1647	# all maps in C++...
1358	sub change_all_map_light {	1648	sub change_all_map_light {
1359	my ($change) = @_;	1649	my ($change) = @_;
1360		1650
1361	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
		1653	}
		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
1363	}	1661	}
1364		1662
1365	sub unlink_save {	1663	sub unlink_save {
1366	my ($self) = @_;	1664	my ($self) = @_;
1367		1665
…		…
1425	$self->load_header_orig	1723	$self->load_header_orig
1426	or return;	1724	or return;
1427	$self->prepare_orig;	1725	$self->prepare_orig;
1428	}	1726	}
1429		1727
		1728	$self->{deny_reset} = 1
		1729	if $self->no_reset;
		1730
1430	$self->default_region (cf::region::find_by_path $self->{path})	1731	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1732	unless $self->default_region;
1432		1733
1433	1	1734	1
1434	}	1735	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1450		1751
1451	$map->load_header	1752	$map->load_header
1452	or return;	1753	or return;
1453		1754
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1756	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1757	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1758	$map->reset;
1458	undef $guard;	1759	undef $guard;
1459	return find $path;	1760	return find $path;
…		…
1470	my ($self) = @_;	1771	my ($self) = @_;
1471		1772
1472	local $self->{deny_reset} = 1; # loading can take a long time	1773	local $self->{deny_reset} = 1; # loading can take a long time
1473		1774
1474	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1778	my $guard = cf::lock_acquire "map_load:$path";
1476		1779
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1781
1479	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1480		1783
1481	$self->alloc;	1784	$self->alloc;
1482		1785
1483	$self->pre_load;	1786	$self->pre_load;
1484	Coro::cede;
1485
1486	$self->_load_objects ($self->{load_path}, 1)
1487	or return;
1488
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1490	if delete $self->{load_original};
1491
1492	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {
1495	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);
1497	}
1498	}
1499
1500	Coro::cede;
1501	# now do the right thing for maps
1502	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;	1787	Coro::cede;
1510	$self->set_darkness_map;	1788
		1789	$self->_load_objects ($self->{load_path}, 1)
		1790	or return;
		1791
		1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1793	if delete $self->{load_original};
		1794
		1795	if (my $uniq = $self->uniq_path) {
		1796	utf8::encode $uniq;
		1797	if (aio_open $uniq, O_RDONLY, 0) {
		1798	$self->clear_unique_items;
		1799	$self->_load_objects ($uniq, 0);
		1800	}
		1801	}
		1802
		1803	Coro::cede;
		1804	# now do the right thing for maps
		1805	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1807	unless $self->difficulty;
1513	Coro::cede;	1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1514	$self->activate;	1817	$self->activate;
1515	Coro::cede;	1818	}
		1819
		1820	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1821	}
1517		1822
1518	$self->post_load;	1823	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1824	}
1523		1825
1524	sub customise_for {	1826	sub customise_for {
1525	my ($self, $ob) = @_;	1827	my ($self, $ob) = @_;
1526		1828
1527	return find "~" . $ob->name . "/" . $self->{path}	1829	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
1529		1834
1530	$self	1835	$self
1531	}	1836	}
1532		1837
1533	# find and load all maps in the 3x3 area around a map	1838	# find and load all maps in the 3x3 area around a map
…		…
1644		1949
1645	sub reset_at {	1950	sub reset_at {
1646	my ($self) = @_;	1951	my ($self) = @_;
1647		1952
1648	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1651		1955
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		1958
…		…
1665	my ($self) = @_;	1969	my ($self) = @_;
1666		1970
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		1972
1669	return if $self->players;	1973	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		1974
1672	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
1673		1976
1674	$self->in_memory (cf::MAP_SWAPPED);	1977	$self->in_memory (cf::MAP_SWAPPED);
1675		1978
1676	# need to save uniques path	1979	# need to save uniques path
1677	unless ($self->{deny_save}) {	1980	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	2012	$cf::MAP{$self->path} = $self;
1710		2013
1711	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
1712	}	2015	}
1713		2016
		2017	=item $maps = cf::map::tmp_maps
		2018
		2019	Returns an arrayref with all map paths of currently instantiated and saved
		2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
		2025	[
		2026	map {
		2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
		2033	}
		2034
		2035	=item $maps = cf::map::random_maps
		2036
		2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
		2039
		2040	=cut
		2041
		2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
		2051	}
		2052
1714	=item cf::map::unique_maps	2053	=item cf::map::unique_maps
1715		2054
1716	Returns an arrayref of paths of all shared maps that have	2055	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2056	instantiated unique items. May block.
1718		2057
1719	=cut	2058	=cut
1720		2059
1721	sub unique_maps() {	2060	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2061	[
1723	or return;	2062	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2063	utf8::decode $_;
1729	next if /\.pst$/;	2064	/\.map$/
1730	next unless /^$PATH_SEP/o;	2065	? normalise $_
1731		2066	: ()
1732	push @paths, cf::map::normalise $_;	2067	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2068	]
1734
1735	\@paths
1736	}	2069	}
1737		2070
1738	package cf;	2071	package cf;
1739		2072
1740	=back	2073	=back
…		…
1786		2119
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2121
1789	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1791	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1794	}	2141	}
1795	}	2142	}
1796		2143
1797	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1798		2145
…		…
1846	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1847		2194
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2196
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1852		2199
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2201	}
1855		2202
1856	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1858		2207
1859	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1860		2209
1861	unless ($map) {	2210	unless ($map) {
1862	# restore original map position	2211	# restore original map position
…		…
1885		2234
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1888	}	2237	}
1889		2238
1890	cf::player->attach (
1891	on_logout => sub {
1892	my ($pl) = @_;
1893
1894	# abort map switching before logout
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903
1904	# try to abort aborted map switching on player login :)
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921
1922	=item $player_object->goto ($path, $x, $y)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1923		2240
		2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
		2245
1924	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1925		2249
1926	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2255
1929	$self->enter_link;	2256	$self->enter_link;
1930		2257
1931	(async {	2258	(async {
1932	my $map = eval {	2259	my $map = eval {
1933	my $map = cf::map::find $path;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
		2264	$map = $check->($map) if $check && $map;
		2265	} else {
		2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
		2268
1935	$map	2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2275	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1940	})->prio (1);	2281	})->prio (1);
1941	}	2282	}
1942		2283
1943	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1944		2285
…		…
1983		2324
1984	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1985		2326
1986	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2329	my $meta = "$RANDOMDIR/$md5.meta";
1989		2330
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2333	undef $fh;
1993	aio_rename "$meta~", $meta;	2334	aio_rename "$meta~", $meta;
…		…
2049		2390
2050	utf8::encode $text;	2391	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2393	}
2053		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
2054	=item $client->ext_event ($type, %msg)	2433	=item $client->ext_event ($type, %msg)
2055		2434
2056	Sends an exti event to the client.	2435	Sends an ext event to the client.
2057		2436
2058	=cut	2437	=cut
2059		2438
2060	sub cf::client::ext_event($$%) {	2439	sub cf::client::ext_event($$%) {
2061	my ($self, $type, %msg) = @_;	2440	my ($self, $type, %msg) = @_;
2062		2441
2063	$msg{msgtype} = "event_$type";	2442	$msg{msgtype} = "event_$type";
2064	$self->send_packet ("ext " . cf::to_json \%msg);	2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2065	}	2444	}
2066		2445
2067	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
2068		2447
2069	Queues a query to the client, calling the given callback with	2448	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2449	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2451
2073	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2453	become reliable at some point in the future.
2075		2454
2076	=cut	2455	=cut
2077		2456
2078	sub cf::client::query {	2457	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2466	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2468
2090	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
2092	}	2473	}
2093		2474
2094	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
2095	on_reply => sub {	2481	on_reply => sub {
2096	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
2097		2483
2098	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
2099	# get handled first	2485	# get handled first
…		…
2110	$ns->send_packet ($ns->{query_queue}[0][0]);	2496	$ns->send_packet ($ns->{query_queue}[0][0]);
2111	} else {	2497	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2499	}
2114	}	2500	}
		2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
2115	},	2519	},
2116	);	2520	);
2117		2521
2118	=item $client->async (\&cb)	2522	=item $client->async (\&cb)
2119		2523
…		…
2258	=back	2662	=back
2259		2663
2260	=cut	2664	=cut
2261		2665
2262	#############################################################################	2666	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	2667	# the server's init and main functions
2336		2668
2337	sub load_facedata($) {	2669	sub load_facedata($) {
2338	my ($path) = @_;	2670	my ($path) = @_;
2339		2671
…		…
2384	}	2716	}
2385		2717
2386	1	2718	1
2387	}	2719	}
2388		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
2389	sub reload_facedata {	2726	sub reload_facedata {
2390	load_facedata sprintf "%s/facedata", cf::datadir	2727	load_facedata "$DATADIR/facedata"
2391	or die "unable to load facedata\n";	2728	or die "unable to load facedata\n";
2392	}	2729	}
2393		2730
2394	sub reload_regions {
2395	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2396	or die "unable to load regions file\n";
2397	}
2398
2399	sub reload_archetypes {	2731	sub reload_archetypes {
2400	load_resource_file sprintf "%s/archetypes", cf::datadir	2732	load_resource_file "$DATADIR/archetypes"
2401	or die "unable to load archetypes\n";	2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
2402	}	2739	}
2403		2740
2404	sub reload_treasures {	2741	sub reload_treasures {
2405	load_resource_file sprintf "%s/treasures", cf::datadir	2742	load_resource_file "$DATADIR/treasures"
2406	or die "unable to load treasurelists\n";	2743	or die "unable to load treasurelists\n";
2407	}	2744	}
2408		2745
2409	sub reload_resources {	2746	sub reload_resources {
2410	warn "reloading resource files...\n";	2747	warn "reloading resource files...\n";
2411		2748
2412	reload_regions;	2749	reload_regions;
2413	reload_facedata;	2750	reload_facedata;
		2751	#reload_archetypes;#d#
2414	reload_archetypes;	2752	reload_archetypes;
2415	reload_treasures;	2753	reload_treasures;
2416		2754
2417	warn "finished reloading resource files\n";	2755	warn "finished reloading resource files\n";
2418	}	2756	}
…		…
2420	sub init {	2758	sub init {
2421	reload_resources;	2759	reload_resources;
2422	}	2760	}
2423		2761
2424	sub cfg_load {	2762	sub cfg_load {
2425	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2426	or return;	2764	or return;
2427		2765
2428	local $/;	2766	local $/;
2429	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2430		2768
…		…
2475	},	2813	},
2476	);	2814	);
2477	}	2815	}
2478	}	2816	}
2479		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
		2854	}
		2855
2480	sub emergency_save() {	2856	sub emergency_save() {
2481	my $freeze_guard = cf::freeze_mainloop;	2857	my $freeze_guard = cf::freeze_mainloop;
2482		2858
2483	warn "enter emergency perl save\n";	2859	warn "enter emergency perl save\n";
2484		2860
…		…
2559	%EXT_CORO = ();	2935	%EXT_CORO = ();
2560		2936
2561	warn "removing commands";	2937	warn "removing commands";
2562	%COMMAND = ();	2938	%COMMAND = ();
2563		2939
2564	warn "removing ext commands";	2940	warn "removing ext/exti commands";
2565	%EXTCMD = ();	2941	%EXTCMD = ();
		2942	%EXTICMD = ();
2566		2943
2567	warn "unloading/nuking all extensions";	2944	warn "unloading/nuking all extensions";
2568	for my $pkg (@EXTS) {	2945	for my $pkg (@EXTS) {
2569	warn "... unloading $pkg";	2946	warn "... unloading $pkg";
2570		2947
…		…
2600	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2601	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2602		2979
2603	warn "unloading cf.pm \"a bit\"";	2980	warn "unloading cf.pm \"a bit\"";
2604	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2605		2983
2606	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2607	# and global variables created in xs	2985	# and global variables created in xs
2608	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2609		2987
…		…
2687	my $signal = new Coro::Signal;	3065	my $signal = new Coro::Signal;
2688	push @WAIT_FOR_TICK_BEGIN, $signal;	3066	push @WAIT_FOR_TICK_BEGIN, $signal;
2689	$signal->wait;	3067	$signal->wait;
2690	}	3068	}
2691		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2692	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2693	reentrant => 0,	3073	reentrant => 0,
2694	parked => 1,	3074	parked => 1,
2695	prio => 0,	3075	prio => 0,
2696	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
…		…
2700	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2701	unless ++$bug_warning > 10;	3081	unless ++$bug_warning > 10;
2702	return;	3082	return;
2703	}	3083	}
2704		3084
2705	$NOW = Event::time;	3085	$NOW = $tick_start = Event::time;
2706		3086
2707	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
2708		3111
2709	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2710	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2711		3114
2712	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2718	}	3121	}
2719		3122
2720	# my $AFTER = Event::time;	3123	# my $AFTER = Event::time;
2721	# warn $AFTER - $NOW;#d#	3124	# warn $AFTER - $NOW;#d#
2722		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
		3134
2723	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2724	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2725		3137
2726	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2727	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
2728		3140
2729	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3141	$LOAD = ($NOW - $tick_start) / $TICK;
2730	$sig->send;	3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2731	}
2732	while (my $sig = shift @WAIT_FOR_TICK) {
2733	$sig->send;
2734	}
2735		3143
2736	_post_tick;	3144	_post_tick;
		3145
		3146
2737	},	3147	},
2738	);	3148	);
2739		3149
2740	{	3150	{
2741	BDB::max_poll_time $TICK * 0.1;	3151	BDB::max_poll_time $TICK * 0.1;
…		…
2769		3179
2770	cf::sync_job {	3180	cf::sync_job {
2771	eval {	3181	eval {
2772	BDB::db_env_open	3182	BDB::db_env_open
2773	$DB_ENV,	3183	$DB_ENV,
2774	$BDB_ENV_DIR,	3184	$BDBDIR,
2775	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2776	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2777	0666;	3187	0666;
2778		3188
2779	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2780		3190
2781	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2782	$DB_ENV->set_lk_detect;	3192	$DB_ENV->set_lk_detect;
2783	};	3193	};
2784		3194
…		…
2800	prio => 6,	3210	prio => 6,
2801	cb => \&IO::AIO::poll_cb,	3211	cb => \&IO::AIO::poll_cb,
2802	);	3212	);
2803	}	3213	}
2804		3214
		3215	my $_log_backtrace;
		3216
		3217	sub _log_backtrace {
		3218	my ($msg, @addr) = @_;
		3219
		3220	$msg =~ s/\n//;
		3221
		3222	# limit the # of concurrent backtraces
		3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
		3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
		3250	}
		3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
		3255
2805	END { cf::emergency_save }	3256	END { cf::emergency_save }
2806		3257
2807	1	3258	1
2808		3259

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