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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.239 by root, Mon Apr 16 06:23:42 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 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 3.52 ();	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;
…		…
47	our %COMMAND = ();	49	our %COMMAND = ();
48	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
49		51
50	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
54		57
55	our $RELOAD; # number of reloads so far	58	our $RELOAD; # number of reloads so far
56	our @EVENT;	59	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		60
59	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	74	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	77	our $NEXT_TICK;
64	our $NOW;	78	our $NOW;
…		…
73	our $RUNTIME;	87	our $RUNTIME;
74		88
75	our %PLAYER; # all users	89	our %PLAYER; # all users
76	our %MAP; # all maps	90	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	91	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		92
81	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
84	binmode STDOUT;	100	binmode STDOUT;
85	binmode STDERR;	101	binmode STDERR;
86		102
87	# read virtual server time, if available	103	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
92	}	108	}
93		109
94	mkdir cf::localdir;	110	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	111	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		112
101	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
102		114
103	sub cf::map::normalise;	115	sub cf::map::normalise;
104		116
…		…
115	=item $cf::RUNTIME	127	=item $cf::RUNTIME
116		128
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	130	every server tick.
119		131
120	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		135
122	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
124		140
125	=item $cf::NOW	141	=item $cf::NOW
126		142
127	The time of the last (current) server tick.	143	The time of the last (current) server tick.
128		144
129	=item $cf::TICK	145	=item $cf::TICK
130		146
131	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
132		158
133	=item %cf::CFG	159	=item %cf::CFG
134		160
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
136	from wherever your confdir points to.	162	from wherever your confdir points to.
…		…
146	=cut	172	=cut
147		173
148	BEGIN {	174	BEGIN {
149	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	176	my $msg = join "", @_;
151	utf8::encode $msg;
152		177
153	$msg .= "\n"	178	$msg .= "\n"
154	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
155		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
156	LOG llevError, $msg;	184	LOG llevError, $msg;
157	};	185	};
158	}	186	}
159		187
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		195
167	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	197	# within the Safe compartment.
169	for my $pkg (qw(	198	for my $pkg (qw(
170	cf::global cf::attachable	199	cf::global cf::attachable
…		…
178	}	207	}
179		208
180	$Event::DIED = sub {	209	$Event::DIED = sub {
181	warn "error in event callback: @_";	210	warn "error in event callback: @_";
182	};	211	};
		212
		213	#############################################################################
183		214
184	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
185		216
186	=over 4	217	=over 4
187		218
…		…
206	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
207	$d	238	$d
208	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
209	}	240	}
210		241
211	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
212		243
213	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
214		245
215	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
216		247
217	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
218		249
219	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
220		258
221	=item cf::lock_wait $string	259	=item cf::lock_wait $string
222		260
223	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
224		262
…		…
230	returned.	268	returned.
231		269
232	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
234		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
235	=cut	277	=cut
236		278
237	our %LOCK;	279	our %LOCK;
238		280
239	sub lock_wait($) {	281	sub lock_wait($) {
…		…
256		298
257	Coro::guard {	299	Coro::guard {
258	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
260	}	302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
261	}	309	}
262		310
263	sub freeze_mainloop {	311	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
265		313
…		…
280		328
281	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
282		330
283	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
284		332
285	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
288		337
289	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
292	fast or be very important.	341	fast or be very important.
…		…
295		344
296	sub sync_job(&) {	345	sub sync_job(&) {
297	my ($job) = @_;	346	my ($job) = @_;
298		347
299	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
300	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
302		353
303	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
315		366
316	while ($busy) {	367	while ($busy) {
317	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
318	}	369	}
319		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
320	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
321	} else {	379	} else {
322	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
323		381
324	$job->()	382	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
344		402
345	$coro	403	$coro
346	}	404	}
347		405
348	sub write_runtime {	406	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		407
351	my $runtime = cf::localdir . "/runtime";	408	Executes the given code block with the given arguments in a seperate
		409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
352		412
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	413	=cut
354	or return;
355		414
356	my $value = $cf::RUNTIME + 90 + 10;	415	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	416	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		417
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
361	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
362		422
363	# always fsync - this file is important	423	if (my $pid = fork) {
364	aio_fsync $fh
365	and return;
366
367	close $fh	424	close $fh2;
368	or return;
369		425
370	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
371	and return;	427	$res = Coro::Storable::thaw $res;
372		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
373	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
374	}	564	}
375		565
376	=item cf::datalog type => key => value, ...	566	=item cf::datalog type => key => value, ...
377		567
378	Log a datalog packet of the given type with the given key-value pairs.	568	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")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
398		588
399	In the following description, CLASS can be any of C<global>, C<object>	589	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	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	591	Crossfire TRT).
402		592
403	=over 4	593	=over 4
404		594
405	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
406		596
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
570		760
571	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		765
576	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	767	my $pkg = shift @arg;
578		768
579	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
609	}	799	}
610		800
611	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
612	} else {	802	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	804	}
615		805
616	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
617	}	807	}
618		808
…		…
620	if (ref $_[0]) {	810	if (ref $_[0]) {
621	_object_attach @_;	811	_object_attach @_;
622	} else {	812	} else {
623	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
624	}	814	}
		815	_recalc_want;
625	};	816	};
626		817
627	# all those should be optimised	818	# all those should be optimised
628	sub cf::attachable::detach {	819	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
633	reattach ($obj);	824	reattach ($obj);
634	} else {	825	} else {
635	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
636	}	827	}
		828	_recalc_want;
637	};	829	};
638		830
639	sub cf::attachable::attached {	831	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
641		833
…		…
814	or return;	1006	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1008	}
817		1009
818	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1012	return ($data, $av);
821	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
822		1020
823	#############################################################################	1021	#############################################################################
824	# command handling &c	1022	# command handling &c
825		1023
826	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1038	}
841		1039
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1041
844	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
845		1047
846	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
847	called.	1049	called.
848		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
849	=cut	1062	=cut
850		1063
851	sub register_extcmd {	1064	sub register_extcmd {
852	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
853		1066
854	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
855	}	1074	}
856		1075
857	cf::player->attach (	1076	cf::player->attach (
858	on_command => sub {	1077	on_command => sub {
859	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
884		1103
885	cf::override;	1104	cf::override;
886	},	1105	},
887	);	1106	);
888		1107
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 {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
924	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1113	next unless -r $path;
926	eval {	1114
927	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
928	1	1172	}
929	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
930	}	1178	};
931	}	1179	}
932		1180
933	#############################################################################	1181	#############################################################################
934		1182
		1183	=back
		1184
935	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
936		1186
937	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
938		1188
939	=cut	1189	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
952		1202
953	=cut	1203	=cut
954		1204
955	sub playerdir($) {	1205	sub playerdir($) {
956	cf::localdir	1206	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1208	}
962		1209
963	sub path($) {	1210	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1085		1332
1086	=cut	1333	=cut
1087		1334
1088	sub list_logins {	1335	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1337	or return [];
1091		1338
1092	my @logins;	1339	my @logins;
1093		1340
1094	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1129	}	1376	}
1130		1377
1131	\@paths	1378	\@paths
1132	}	1379	}
1133		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1134	=item $player->ext_reply ($msgid, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1135		1415
1136	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1137		1417
1138	=cut	1418	=cut
1139		1419
1140	sub ext_reply($$%) {	1420	sub ext_reply($$%) {
1141	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1142		1422
1143	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1144
1145	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1146	}	1425	}
1147		1426
1148	=item $player->ext_event ($type, %msg)	1427	=item $player->ext_event ($type, %msg)
1149		1428
…		…
1165		1444
1166	package cf::region;	1445	package cf::region;
1167		1446
1168	=item cf::region::find_by_path $path	1447	=item cf::region::find_by_path $path
1169		1448
1170	Tries to decuce the probable region for a map knowing only its path.	1449	Tries to decuce the likely region for a map knowing only its path.
1171		1450
1172	=cut	1451	=cut
1173		1452
1174	sub find_by_path($) {	1453	sub find_by_path($) {
1175	my ($path) = @_;	1454	my ($path) = @_;
…		…
1249	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1250		1529
1251	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1252	local $self->{path};	1531	local $self->{path};
1253	local $self->{load_path};	1532	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1533
1257	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1258	}	1535	}
1259		1536
1260	sub normalise {	1537	sub normalise {
…		…
1332		1609
1333	# the original (read-only) location	1610	# the original (read-only) location
1334	sub load_path {	1611	sub load_path {
1335	my ($self) = @_;	1612	my ($self) = @_;
1336		1613
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1338	}	1615	}
1339		1616
1340	# the temporary/swap location	1617	# the temporary/swap location
1341	sub save_path {	1618	sub save_path {
1342	my ($self) = @_;	1619	my ($self) = @_;
1343		1620
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1346	}	1623	}
1347		1624
1348	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1349	sub uniq_path {	1626	sub uniq_path {
1350	my ($self) = @_;	1627	my ($self) = @_;
1351		1628
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1354	}	1631	}
1355		1632
1356	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1357	# all maps in C++...	1634	# all maps in C++...
1358	sub change_all_map_light {	1635	sub change_all_map_light {
1359	my ($change) = @_;	1636	my ($change) = @_;
1360		1637
1361	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
		1640	}
		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
1363	}	1648	}
1364		1649
1365	sub unlink_save {	1650	sub unlink_save {
1366	my ($self) = @_;	1651	my ($self) = @_;
1367		1652
…		…
1425	$self->load_header_orig	1710	$self->load_header_orig
1426	or return;	1711	or return;
1427	$self->prepare_orig;	1712	$self->prepare_orig;
1428	}	1713	}
1429		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
1430	$self->default_region (cf::region::find_by_path $self->{path})	1718	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1719	unless $self->default_region;
1432		1720
1433	1	1721	1
1434	}	1722	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1450		1738
1451	$map->load_header	1739	$map->load_header
1452	or return;	1740	or return;
1453		1741
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1745	$map->reset;
1458	undef $guard;	1746	undef $guard;
1459	return find $path;	1747	return find $path;
…		…
1470	my ($self) = @_;	1758	my ($self) = @_;
1471		1759
1472	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1473		1761
1474	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1476		1766
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1768
1479	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1480		1770
1481	$self->alloc;	1771	$self->alloc;
1482		1772
1483	$self->pre_load;	1773	$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;	1774	Coro::cede;
1510	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1794	unless $self->difficulty;
1513	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1514	$self->activate;	1804	$self->activate;
1515	Coro::cede;	1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1808	}
1517		1809
1518	$self->post_load;	1810	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1811	}
1523		1812
1524	sub customise_for {	1813	sub customise_for {
1525	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1526		1815
1527	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1529		1821
1530	$self	1822	$self
1531	}	1823	}
1532		1824
1533	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1644		1936
1645	sub reset_at {	1937	sub reset_at {
1646	my ($self) = @_;	1938	my ($self) = @_;
1647		1939
1648	# TODO: safety, remove and allow resettable per-player maps	1940	# 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};	1941	return 1e99 if $self->{deny_reset};
1651		1942
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		1945
…		…
1665	my ($self) = @_;	1956	my ($self) = @_;
1666		1957
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		1959
1669	return if $self->players;	1960	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		1961
1672	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1673		1963
1674	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1675		1965
1676	# need to save uniques path	1966	# need to save uniques path
1677	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1710		2000
1711	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1712	}	2002	}
1713		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1714	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1715		2041
1716	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2043	instantiated unique items. May block.
1718		2044
1719	=cut	2045	=cut
1720		2046
1721	sub unique_maps() {	2047	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1723	or return;	2049	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2050	utf8::decode $_;
1729	next if /\.pst$/;	2051	/\.map$/
1730	next unless /^$PATH_SEP/o;	2052	? normalise $_
1731		2053	: ()
1732	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2055	]
1734
1735	\@paths
1736	}	2056	}
1737		2057
1738	package cf;	2058	package cf;
1739		2059
1740	=back	2060	=back
…		…
1786		2106
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2108
1789	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1791	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1794	}	2128	}
1795	}	2129	}
1796		2130
1797	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1798		2132
…		…
1846	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1847		2181
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2183
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1852		2186
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2188	}
1855		2189
1856	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1858		2194
1859	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1860		2196
1861	unless ($map) {	2197	unless ($map) {
1862	# restore original map position	2198	# restore original map position
…		…
1885		2221
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1888	}	2224	}
1889		2225
1890	cf::player->attach (
1891	on_logout => sub {
1892	my ($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)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1923		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1924	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1925		2236
1926	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2242
1929	$self->enter_link;	2243	$self->enter_link;
1930		2244
1931	(async {	2245	(async {
1932	my $map = eval {	2246	my $map = eval {
1933	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
		2255
1935	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2262	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1940	})->prio (1);	2268	})->prio (1);
1941	}	2269	}
1942		2270
1943	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1944		2272
…		…
1983		2311
1984	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1985		2313
1986	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1989		2317
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2320	undef $fh;
1993	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
2049		2377
2050	utf8::encode $text;	2378	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2052	}	2380	}
2053		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
2054	=item $client->ext_event ($type, %msg)	2420	=item $client->ext_event ($type, %msg)
2055		2421
2056	Sends an exti event to the client.	2422	Sends an ext event to the client.
2057		2423
2058	=cut	2424	=cut
2059		2425
2060	sub cf::client::ext_event($$%) {	2426	sub cf::client::ext_event($$%) {
2061	my ($self, $type, %msg) = @_;	2427	my ($self, $type, %msg) = @_;
…		…
2068		2434
2069	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
2070	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2071	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2072		2438
2073	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
2074	reliable at some point in the future.	2440	become reliable at some point in the future.
2075		2441
2076	=cut	2442	=cut
2077		2443
2078	sub cf::client::query {	2444	sub cf::client::query {
2079	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2087	utf8::encode $text;	2453	utf8::encode $text;
2088	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2089		2455
2090	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2091	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2092	}	2460	}
2093		2461
2094	cf::client->attach (	2462	cf::client->attach (
2095	on_reply => sub {	2463	on_reply => sub {
2096	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2110	$ns->send_packet ($ns->{query_queue}[0][0]);	2478	$ns->send_packet ($ns->{query_queue}[0][0]);
2111	} else {	2479	} else {
2112	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2113	}	2481	}
2114	}	2482	}
		2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
2115	},	2501	},
2116	);	2502	);
2117		2503
2118	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2119		2505
…		…
2258	=back	2644	=back
2259		2645
2260	=cut	2646	=cut
2261		2647
2262	#############################################################################	2648	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$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 $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	2649	# the server's init and main functions
2336		2650
2337	sub load_facedata {	2651	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	2652	my ($path) = @_;
2339		2653
2340	warn "loading facedata from $path\n";	2654	warn "loading facedata from $path\n";
2341		2655
2342	my $facedata;	2656	my $facedata;
2343	0 < aio_load $path, $facedata	2657	0 < aio_load $path, $facedata
…		…
2384	}	2698	}
2385		2699
2386	1	2700	1
2387	}	2701	}
2388		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
2389	sub reload_resources {	2723	sub reload_resources {
2390	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2724	warn "reloading resource files...\n";
2391	or die "unable to load regions file\n";#d#	2725
		2726	reload_regions;
2392	load_facedata	2727	reload_facedata;
2393	or die "unable to load facedata\n";#d#	2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
2394	}	2733	}
2395		2734
2396	sub init {	2735	sub init {
2397	reload_resources;	2736	reload_resources;
2398	}	2737	}
2399		2738
2400	sub cfg_load {	2739	sub cfg_load {
2401	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2402	or return;	2741	or return;
2403		2742
2404	local $/;	2743	local $/;
2405	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2406		2745
…		…
2451	},	2790	},
2452	);	2791	);
2453	}	2792	}
2454	}	2793	}
2455		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2456	sub emergency_save() {	2833	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2458		2835
2459	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2460		2837
…		…
2491		2868
2492	warn Carp::longmess "post_cleanup backtrace"	2869	warn Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	2870	if $make_core;
2494	}	2871	}
2495		2872
2496	sub reload() {	2873	sub do_reload_perl() {
2497	# can/must only be called in main	2874	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2499	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2500	return;	2877	return;
2501	}	2878	}
…		…
2535	%EXT_CORO = ();	2912	%EXT_CORO = ();
2536		2913
2537	warn "removing commands";	2914	warn "removing commands";
2538	%COMMAND = ();	2915	%COMMAND = ();
2539		2916
2540	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2541	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2542		2920
2543	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2544	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2545	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2546		2924
…		…
2576	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2577	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2578		2956
2579	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2581		2960
2582	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2583	# and global variables created in xs	2962	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2585		2964
…		…
2600	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2601	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	2981	warn "reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	2982	reattach $_ for values %PLAYER;
2604		2983
2605	warn "loading reloadable resources";
2606	reload_resources;
2607
2608	warn "leaving sync_job";	2984	warn "leaving sync_job";
2609		2985
2610	1	2986	1
2611	} or do {	2987	} or do {
2612	warn $@;	2988	warn $@;
…		…
2617	warn "reloaded";	2993	warn "reloaded";
2618	};	2994	};
2619		2995
2620	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2621		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2622	register_command "reload" => sub {	3013	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2624		3015
2625	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2627		3018	async { reload_perl };
2628	# doing reload synchronously and two reloads happen back-to-back,
2629	# coro crashes during coro_state_free->destroy here.
2630
2631	$RELOAD_WATCHER ||= Event->timer (
2632	reentrant => 0,
2633	after => 0,
2634	data => WF_AUTOCANCEL,
2635	cb => sub {
2636	reload;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);
2640	}	3019	}
2641	};	3020	};
2642		3021
2643	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2644		3023
…		…
2646		3025
2647	our @WAIT_FOR_TICK;	3026	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;	3027	our @WAIT_FOR_TICK_BEGIN;
2649		3028
2650	sub wait_for_tick {	3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
2651	my $signal = new Coro::Signal;	3033	my $signal = new Coro::Signal;
2652	push @WAIT_FOR_TICK, $signal;	3034	push @WAIT_FOR_TICK, $signal;
2653	$signal->wait;	3035	$signal->wait;
2654	}	3036	}
2655		3037
2656	sub wait_for_tick_begin {	3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
2657	my $signal = new Coro::Signal;	3042	my $signal = new Coro::Signal;
2658	push @WAIT_FOR_TICK_BEGIN, $signal;	3043	push @WAIT_FOR_TICK_BEGIN, $signal;
2659	$signal->wait;	3044	$signal->wait;
2660	}	3045	}
2661		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2662	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2663	reentrant => 0,	3050	reentrant => 0,
2664	parked => 1,	3051	parked => 1,
2665	prio => 0,	3052	prio => 0,
2666	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2670	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2671	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2672	return;	3059	return;
2673	}	3060	}
2674		3061
2675	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2676		3063
2677	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2678	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2679	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2680		3091
2681	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2682	$NEXT_RUNTIME_WRITE = $NOW + 10;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2684	write_runtime	3095	write_runtime
2685	or warn "ERROR: unable to write runtime file: $!";	3096	or warn "ERROR: unable to write runtime file: $!";
2686	};	3097	};
2687	}	3098	}
2688		3099
		3100	# my $AFTER = Event::time;
		3101	# warn $AFTER - $NOW;#d#
		3102
2689	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2690	$sig->send;	3104	$sig->send;
2691	}	3105	}
2692	while (my $sig = shift @WAIT_FOR_TICK) {	3106	while (my $sig = shift @WAIT_FOR_TICK) {
2693	$sig->send;	3107	$sig->send;
2694	}	3108	}
2695		3109
2696	# my $AFTER = Event::time;	3110	$NOW = Event::time;
2697	# warn $AFTER - $NOW;#d#
2698		3111
2699	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2700	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2701		3114
2702	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2703	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2704	},	3124	},
2705	);	3125	);
2706		3126
2707	{	3127	{
2708	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;
…		…
2736		3156
2737	cf::sync_job {	3157	cf::sync_job {
2738	eval {	3158	eval {
2739	BDB::db_env_open	3159	BDB::db_env_open
2740	$DB_ENV,	3160	$DB_ENV,
2741	$BDB_ENV_DIR,	3161	$BDBDIR,
2742	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2743	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2744	0666;	3164	0666;
2745		3165
2746	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2747		3167
2748	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2749	$DB_ENV->set_lk_detect;	3169	$DB_ENV->set_lk_detect;
2750	};	3170	};
2751		3171
…		…
2767	prio => 6,	3187	prio => 6,
2768	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2769	);	3189	);
2770	}	3190	}
2771		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
		3232
2772	END { cf::emergency_save }	3233	END { cf::emergency_save }
2773		3234
2774	1	3235	1
2775		3236

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