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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.206 by root, Sun Feb 11 22:27:05 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;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
20	use BDB ();	25	use BDB ();
21	use Data::Dumper;	26	use Data::Dumper;
22	use Digest::MD5;	27	use Digest::MD5;
23	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
24	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
27		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		41
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
34		44
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
37	our %COMMAND = ();	49	our %COMMAND = ();
38	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
39		51
40	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
44		57
		58	our $RELOAD; # number of reloads so far
45	our @EVENT;	59	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		60
48	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(!)
49	our $TICK_WATCHER;	74	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	77	our $NEXT_TICK;
53	our $NOW;	78	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	79	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		80
56	our $BDB_POLL_WATCHER;	81	our $BDB_POLL_WATCHER;
…		…
62	our $RUNTIME;	87	our $RUNTIME;
63		88
64	our %PLAYER; # all users	89	our %PLAYER; # all users
65	our %MAP; # all maps	90	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		92
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $tick_start; # for load detecting purposes
		99
76	binmode STDOUT;	100	binmode STDOUT;
77	binmode STDERR;	101	binmode STDERR;
78		102
79	# read virtual server time, if available	103	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
84	}	108	}
85		109
86	mkdir cf::localdir;	110	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		112
93	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
94		114
95	sub cf::map::normalise;	115	sub cf::map::normalise;
96		116
…		…
107	=item $cf::RUNTIME	127	=item $cf::RUNTIME
108		128
109	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
110	every server tick.	130	every server tick.
111		131
112	=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
113		135
114	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		140
117	=item $cf::NOW	141	=item $cf::NOW
118		142
119	The time of the last (current) server tick.	143	The time of the last (current) server tick.
120		144
121	=item $cf::TICK	145	=item $cf::TICK
122		146
123	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.
124		158
125	=item %cf::CFG	159	=item %cf::CFG
126		160
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
128	from wherever your confdir points to.	162	from wherever your confdir points to.
129		163
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		165
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.
136		169
137	=back	170	=back
138		171
139	=cut	172	=cut
140		173
141	BEGIN {	174	BEGIN {
142	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	176	my $msg = join "", @_;
144	utf8::encode $msg;
145		177
146	$msg .= "\n"	178	$msg .= "\n"
147	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
148		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
149	LOG llevError, $msg;	184	LOG llevError, $msg;
150	};	185	};
151	}	186	}
152		187
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@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';
158	@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)
159		195
160	# 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
161	# within the Safe compartment.	197	# within the Safe compartment.
162	for my $pkg (qw(	198	for my $pkg (qw(
163	cf::global cf::attachable	199	cf::global cf::attachable
…		…
171	}	207	}
172		208
173	$Event::DIED = sub {	209	$Event::DIED = sub {
174	warn "error in event callback: @_";	210	warn "error in event callback: @_";
175	};	211	};
		212
		213	#############################################################################
176		214
177	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
178		216
179	=over 4	217	=over 4
180		218
…		…
199	$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;
200	$d	238	$d
201	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
202	}	240	}
203		241
204	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
205		243
206	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
207		245
208	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
209		247
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
218		249
219	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
220		251
221	=cut	252	=cut
222		253
223	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
225	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
226	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
227		258
228	=item cf::lock_wait $string	259	=item cf::lock_wait $string
229		260
230	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
231		262
…		…
237	returned.	268	returned.
238		269
239	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
240	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
241		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
242	=cut	277	=cut
243		278
244	our %LOCK;	279	our %LOCK;
245		280
246	sub lock_wait($) {	281	sub lock_wait($) {
…		…
265	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
267	}	302	}
268	}	303	}
269		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
270	sub freeze_mainloop {	311	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
272		313
273	my $guard = Coro::guard {	314	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	316	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
279	$guard	318	$guard
280	}	319	}
281		320
282	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
289		328
290	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
291		330
292	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
293		332
294	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
297		337
298	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
301	fast or be very important.	341	fast or be very important.
…		…
304		344
305	sub sync_job(&) {	345	sub sync_job(&) {
306	my ($job) = @_;	346	my ($job) = @_;
307		347
308	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
309	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
311		353
312	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
324		366
325	while ($busy) {	367	while ($busy) {
326	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
327	}	369	}
328		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
329	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
330	} else {	379	} else {
331	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
332		381
333	$job->()	382	$job->()
…		…
352	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
353		402
354	$coro	403	$coro
355	}	404	}
356		405
357	sub write_runtime {	406	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		407
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
361	or return;	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.
362		412
363	my $value = $cf::RUNTIME + 90 + 10;	413	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		414
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	415	sub fork_call(&@) {
368	and return;	416	my ($cb, @args) = @_;
369		417
370	# always fsync - this file is important	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
371	aio_fsync $fh	419	# or die "socketpair: $!";
372	and return;	420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
373		422
		423	if (my $pid = fork) {
374	close $fh	424	close $fh2;
375	or return;
376		425
377	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
378	and return;	427	$res = Coro::Storable::thaw $res;
379		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
380	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		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"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	575	}
382		576
383	=back	577	=back
384		578
385	=cut	579	=cut
…		…
392	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")
393	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
394		588
395	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>
396	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
397	crossfire+).	591	Crossfire TRT).
398		592
399	=over 4	593	=over 4
400		594
401	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
402		596
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
566		760
567	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		765
572	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	767	my $pkg = shift @arg;
574		768
575	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
605	}	799	}
606		800
607	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
608	} else {	802	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	804	}
611		805
612	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
613	}	807	}
614		808
…		…
616	if (ref $_[0]) {	810	if (ref $_[0]) {
617	_object_attach @_;	811	_object_attach @_;
618	} else {	812	} else {
619	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
620	}	814	}
		815	_recalc_want;
621	};	816	};
622		817
623	# all those should be optimised	818	# all those should be optimised
624	sub cf::attachable::detach {	819	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
629	reattach ($obj);	824	reattach ($obj);
630	} else {	825	} else {
631	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
632	}	827	}
		828	_recalc_want;
633	};	829	};
634		830
635	sub cf::attachable::attached {	831	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
637		833
…		…
784	}	980	}
785	} else {	981	} else {
786	aio_unlink $filename;	982	aio_unlink $filename;
787	aio_unlink "$filename.pst";	983	aio_unlink "$filename.pst";
788	}	984	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	985	}
796	}	986	}
797		987
798	sub object_freezer_as_string {	988	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	989	my ($rdata, $objs) = @_;
…		…
805		995
806	sub object_thawer_load {	996	sub object_thawer_load {
807	my ($filename) = @_;	997	my ($filename) = @_;
808		998
809	my ($data, $av);	999	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1000
814	(aio_load $filename, $data) >= 0	1001	(aio_load $filename, $data) >= 0
815	or return;	1002	or return;
816		1003
817	unless (aio_stat "$filename.pst") {	1004	unless (aio_stat "$filename.pst") {
…		…
819	or return;	1006	or return;
820	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
821	}	1008	}
822		1009
823	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
825	return ($data, $av);	1012	return ($data, $av);
826	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
827		1020
828	#############################################################################	1021	#############################################################################
829	# command handling &c	1022	# command handling &c
830		1023
831	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1038	}
846		1039
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1041
849	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.
850		1047
851	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
852	called.	1049	called.
853		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
854	=cut	1062	=cut
855		1063
856	sub register_extcmd {	1064	sub register_extcmd {
857	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
858		1066
859	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
860	}	1074	}
861		1075
862	cf::player->attach (	1076	cf::player->attach (
863	on_command => sub {	1077	on_command => sub {
864	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
889		1103
890	cf::override;	1104	cf::override;
891	},	1105	},
892	);	1106	);
893		1107
894	sub load_extension {
895	my ($path) = @_;
896
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
898	my $base = $1;
899	my $pkg = $1;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}
922	die $@;
923	}
924
925	push @EXTS, $pkg;
926	}
927
928	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
929	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1113	next unless -r $path;
931	eval {	1114
932	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;
933	1	1172	}
934	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
935	}	1178	};
936	}	1179	}
937		1180
938	#############################################################################	1181	#############################################################################
939		1182
		1183	=back
		1184
940	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
941		1186
942	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
943		1188
944	=cut	1189	=cut
…		…
956	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
957		1202
958	=cut	1203	=cut
959		1204
960	sub playerdir($) {	1205	sub playerdir($) {
961	cf::localdir	1206	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1208	}
967		1209
968	sub path($) {	1210	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1212
971	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
972	}	1214	}
973		1215
974	sub find_active($) {	1216	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1231	my $login = $_[0];
990		1232
991	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
992		1234
993	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
994	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
995	or return;	1244	or return;
996	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
997	}	1246	}
998	}	1247	}
…		…
1035		1284
1036	=cut	1285	=cut
1037		1286
1038	sub quit_character {	1287	sub quit_character {
1039	my ($pl) = @_;	1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
1040		1291
1041	$pl->{deny_save} = 1;	1292	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
1043		1294
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1300	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1301	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1302	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1303	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
1054	IO::AIO::aio_rmtree $temp;	1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
1055	}	1326	}
1056		1327
1057	=item cf::player::list_logins	1328	=item cf::player::list_logins
1058		1329
1059	Returns am arrayref of all valid playernames in the system, can take a	1330	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1061		1332
1062	=cut	1333	=cut
1063		1334
1064	sub list_logins {	1335	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1337	or return [];
1067		1338
1068	my @logins;	1339	my @logins;
1069		1340
1070	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1105	}	1376	}
1106		1377
1107	\@paths	1378	\@paths
1108	}	1379	}
1109		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
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1111		1415
1112	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1113		1417
1114	=cut	1418	=cut
1115		1419
1116	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1117	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1118		1422
1119	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1120
1121	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1122	}	1425	}
1123		1426
1124	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1125		1467
1126	=back	1468	=back
1127
1128		1469
1129	=head3 cf::map	1470	=head3 cf::map
1130		1471
1131	=over 4	1472	=over 4
1132		1473
…		…
1187	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1188		1529
1189	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1190	local $self->{path};	1531	local $self->{path};
1191	local $self->{load_path};	1532	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1533
1195	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1196	}	1535	}
1197		1536
1198	sub normalise {	1537	sub normalise {
…		…
1270		1609
1271	# the original (read-only) location	1610	# the original (read-only) location
1272	sub load_path {	1611	sub load_path {
1273	my ($self) = @_;	1612	my ($self) = @_;
1274		1613
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1276	}	1615	}
1277		1616
1278	# the temporary/swap location	1617	# the temporary/swap location
1279	sub save_path {	1618	sub save_path {
1280	my ($self) = @_;	1619	my ($self) = @_;
1281		1620
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1284	}	1623	}
1285		1624
1286	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1287	sub uniq_path {	1626	sub uniq_path {
1288	my ($self) = @_;	1627	my ($self) = @_;
1289		1628
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1292	}	1631	}
1293		1632
1294	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1295	# all maps in C++...	1634	# all maps in C++...
1296	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1298		1637
1299	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1301	}	1640	}
1302		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1303	sub unlink_save {	1650	sub unlink_save {
1304	my ($self) = @_;	1651	my ($self) = @_;
1305		1652
1306	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1656	}
1315		1657
1316	sub load_header_from($) {	1658	sub load_header_from($) {
1317	my ($self, $path) = @_;	1659	my ($self, $path) = @_;
1318		1660
…		…
1368	$self->load_header_orig	1710	$self->load_header_orig
1369	or return;	1711	or return;
1370	$self->prepare_orig;	1712	$self->prepare_orig;
1371	}	1713	}
1372		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
		1720
1373	1	1721	1
1374	}	1722	}
1375		1723
1376	sub find;	1724	sub find;
1377	sub find {	1725	sub find {
…		…
1389	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1390		1738
1391	$map->load_header	1739	$map->load_header
1392	or return;	1740	or return;
1393		1741
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1397	$map->reset;	1745	$map->reset;
1398	undef $guard;	1746	undef $guard;
1399	return find $path;	1747	return find $path;
…		…
1410	my ($self) = @_;	1758	my ($self) = @_;
1411		1759
1412	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1413		1761
1414	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1415	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1416		1766
1417	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1418		1768
1419	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1420		1770
1421	$self->alloc;	1771	$self->alloc;
1422		1772
1423	$self->pre_load;	1773	$self->pre_load;
1424
1425	$self->_load_objects ($self->{load_path}, 1)
1426	or return;
1427
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1429	if delete $self->{load_original};
1430
1431	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {
1434	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);
1436	}
1437	}
1438
1439	Coro::cede;
1440
1441	# now do the right thing for maps
1442	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;	1774	Coro::cede;
1449	$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;
1450	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	1794	unless $self->difficulty;
1452	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($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;
1453	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1454	}	1808	}
1455		1809
1456	$self->post_load;	1810	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1811	}
1460		1812
1461	sub customise_for {	1813	sub customise_for {
1462	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1463		1815
1464	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1466		1821
1467	$self	1822	$self
1468	}	1823	}
1469		1824
1470	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1581		1936
1582	sub reset_at {	1937	sub reset_at {
1583	my ($self) = @_;	1938	my ($self) = @_;
1584		1939
1585	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1588		1942
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		1945
…		…
1602	my ($self) = @_;	1956	my ($self) = @_;
1603		1957
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		1959
1606	return if $self->players;	1960	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		1961
1609	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1610		1973
1611	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
1612		1975
1613	$self->in_memory (cf::MAP_SWAPPED);
1614	$self->clear;	1976	$self->clear;
1615		1977
1616	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1617		1979
1618	$self->unlink_save;	1980	$self->unlink_save;
…		…
1637	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1638		2000
1639	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1640	}	2002	}
1641		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
1642	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1643		2041
1644	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2043	instantiated unique items. May block.
1646		2044
1647	=cut	2045	=cut
1648		2046
1649	sub unique_maps() {	2047	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1651	or return;	2049	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2050	utf8::decode $_;
1657	next if /\.pst$/;	2051	/\.map$/
1658	next unless /^$PATH_SEP/o;	2052	? normalise $_
1659		2053	: ()
1660	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2055	]
1662
1663	\@paths
1664	}	2056	}
1665		2057
1666	package cf;	2058	package cf;
1667		2059
1668	=back	2060	=back
…		…
1714		2106
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2108
1717	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1719	} 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 {
1720	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1722	}	2128	}
1723	}	2129	}
1724		2130
1725	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1726		2132
…		…
1774	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1775		2181
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2183
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1780		2186
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2188	}
1783		2189
1784	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1786		2194
1787	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1788		2196
1789	unless ($map) {	2197	unless ($map) {
1790	# restore original map position	2198	# restore original map position
…		…
1808	$map->load;	2216	$map->load;
1809	$map->load_diag;	2217	$map->load_diag;
1810		2218
1811	return unless $self->contr->active;	2219	return unless $self->contr->active;
1812	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1814	}	2224	}
1815		2225
1816	cf::player->attach (
1817	on_logout => sub {
1818	my ($pl) = @_;
1819
1820	# abort map switching before logout
1821	if ($pl->ob->{_link_pos}) {
1822	cf::sync_job {
1823	$pl->ob->leave_link
1824	};
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1849		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
1850	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1851		2236
1852	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1853	my ($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;
1854		2242
1855	$self->enter_link;	2243	$self->enter_link;
1856		2244
1857	(async {	2245	(async {
1858	my $map = eval {	2246	my $map = eval {
1859	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1860	$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
1861	$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 $@;
1862	} or	2262	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1866	})->prio (1);	2268	})->prio (1);
1867	}	2269	}
1868		2270
1869	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1870		2272
…		…
1909		2311
1910	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1911		2313
1912	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1915		2317
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2320	undef $fh;
1919	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1928		2330
1929	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1930		2332
1931	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1934	}	2338	}
1935		2339
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1945	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1946		2350
1947	1;	2351	1;
1948	}) {	2352	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2357
1954	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2359	$self->leave_link;
1956	}	2360	}
1957	})->prio (1);	2361	})->prio (1);
…		…
1970		2374
1971	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1973		2377
1974	utf8::encode $text;	2378	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2380	}
1977		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
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1978		2432
1979	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1980		2434
1981	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1982	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>,
1983	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>.
1984		2438
1985	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
1986	reliable at some point in the future.	2440	become reliable at some point in the future.
1987		2441
1988	=cut	2442	=cut
1989		2443
1990	sub cf::client::query {	2444	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2453	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2455
2002	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2004	}	2460	}
2005		2461
2006	cf::client->attach (	2462	cf::client->attach (
2007	on_reply => sub {	2463	on_reply => sub {
2008	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2023	} else {	2479	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2481	}
2026	}	2482	}
2027	},	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;
		2501	},
2028	);	2502	);
2029		2503
2030	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2031		2505
2032	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2079		2553
2080	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2081		2555
2082	=pod	2556	=pod
2083		2557
2084	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2085		2559
2086	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2087	cf::object::player player	2561	cf::object::player player
2088	cf::player peaceful	2562	cf::player peaceful
2089	cf::map trigger	2563	cf::map trigger
…		…
2170	=back	2644	=back
2171		2645
2172	=cut	2646	=cut
2173		2647
2174	#############################################################################	2648	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	2649	# the server's init and main functions
2284		2650
2285	sub load_resources {	2651	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2652	my ($path) = @_;
		2653
		2654	warn "loading facedata from $path\n";
		2655
		2656	my $facedata;
		2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
		2659
		2660	$facedata = Coro::Storable::thaw $facedata;
		2661
		2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2664
		2665	{
		2666	my $faces = $facedata->{faceinfo};
		2667
		2668	while (my ($face, $info) = each %$faces) {
		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2673	Coro::cede;
		2674	}
		2675
		2676	while (my ($face, $info) = each %$faces) {
		2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	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
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
2288	}	2737	}
2289		2738
2290	sub cfg_load {	2739	sub cfg_load {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	2741	or return;
2293		2742
2294	local $/;	2743	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2296		2745
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	2755	};
2307	warn $@ if $@;	2756	warn $@ if $@;
2308	}	2757	}
2309	}
2310
2311	sub init {
2312	load_resources;
2313	}	2758	}
2314		2759
2315	sub main {	2760	sub main {
2316	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
…		…
2320	Event::one_event;	2765	Event::one_event;
2321	})->prio (Coro::PRIO_MAX);	2766	})->prio (Coro::PRIO_MAX);
2322	};	2767	};
2323		2768
2324	cfg_load;	2769	cfg_load;
2325	db_load;	2770	db_init;
2326	load_extensions;	2771	load_extensions;
2327		2772
2328	$TICK_WATCHER->start;	2773	$TICK_WATCHER->start;
2329	Event::loop;	2774	Event::loop;
2330	}	2775	}
…		…
2345	},	2790	},
2346	);	2791	);
2347	}	2792	}
2348	}	2793	}
2349		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
2350	sub emergency_save() {	2833	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2352		2835
2353	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2354		2837
…		…
2369	my $map = $cf::MAP{$path} or next;	2852	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	2853	$map->valid or next;
2371	$map->save;	2854	$map->save;
2372	}	2855	}
2373	warn "end emergency map save\n";	2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
2374	};	2861	};
2375		2862
2376	warn "leave emergency perl save\n";	2863	warn "leave emergency perl save\n";
2377	}	2864	}
2378		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2379	sub reload() {	2873	sub do_reload_perl() {
2380	# can/must only be called in main	2874	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2383	return;	2877	return;
2384	}	2878	}
2385		2879
2386	warn "reloading...";	2880	warn "reloading...";
2387		2881
2388	warn "cancelling server ticker";	2882	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2392		2888
2393	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2394	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398		2893
2399	warn "cancelling all WF_AUTOCANCEL watchers";	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}	2897	}
2403		2898
2404	warn "flushing outstanding aio requests";	2899	warn "flushing outstanding aio requests";
2405	for (;;) {	2900	for (;;) {
		2901	BDB::flush;
2406	IO::AIO::flush;	2902	IO::AIO::flush;
2407	Coro::cede;	2903	Coro::cede;
2408	last unless IO::AIO::nreqs;	2904	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	2905	warn "iterate...";
2410	}	2906	}
		2907
		2908	++$RELOAD;
2411		2909
2412	warn "cancelling all extension coros";	2910	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	2912	%EXT_CORO = ();
2415		2913
2416	warn "removing commands";	2914	warn "removing commands";
2417	%COMMAND = ();	2915	%COMMAND = ();
2418		2916
2419	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2420	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2421		2920
2422	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2425		2924
…		…
2455	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2456	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);
2457		2956
2458	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2460		2960
2461	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2462	# and global variables created in xs	2962	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2464		2964
…		…
2468	require cf;	2968	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		2970
2471	warn "loading config and database again";	2971	warn "loading config and database again";
2472	cf::cfg_load;	2972	cf::cfg_load;
2473	cf::db_load;
2474		2973
2475	warn "loading extensions";	2974	warn "loading extensions";
2476	cf::load_extensions;	2975	cf::load_extensions;
2477		2976
2478	warn "reattaching attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2479	_global_reattach;	2978	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2482		2983
2483	warn "loading reloadable resources";	2984	warn "leaving sync_job";
2484	load_resources;
2485		2985
2486	warn "restarting server ticker";	2986	1
2487		2987	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	2988	warn $@;
2493	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2494	exit 1;	2990	exit 1;
2495	}	2991	};
2496		2992
2497	warn "reloaded";	2993	warn "reloaded";
2498	};	2994	};
2499		2995
2500	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2501		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 $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2502	register_command "reload" => sub {	3013	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2504		3015
2505	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2507		3018	async { reload_perl };
2508	# doing reload synchronously and two reloads happen back-to-back,
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);
2520	}	3019	}
2521	};	3020	};
2522		3021
2523	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2524		3023
2525	my $bug_warning = 0;	3024	my $bug_warning = 0;
2526		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2527	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2528	reentrant => 0,	3050	reentrant => 0,
2529	parked => 1,	3051	parked => 1,
2530	prio => 0,	3052	prio => 0,
2531	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2537	return;	3059	return;
2538	}	3060	}
2539		3061
2540	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2541		3063
2542	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
2543	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2545		3091
2546	$WAIT_FOR_TICK->broadcast;	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
2548		3094	Coro::async_pool {
2549	Event::sweep;	3095	write_runtime
2550	Coro::cede_notself;	3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
2551		3098	}
		3099
2552	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2554		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2555	# 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
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2557		3114
2558	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2559	$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
2560	},	3124	},
2561	);	3125	);
2562		3126
2563	{	3127	{
2564	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;
…		…
2589		3153
2590	unless ($DB_ENV) {	3154	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3155	$DB_ENV = BDB::db_env_create;
2592		3156
2593	cf::sync_job {	3157	cf::sync_job {
		3158	eval {
2594	BDB::db_env_open	3159	BDB::db_env_open
2595	$DB_ENV,	3160	$DB_ENV,
2596	$BDB_ENV_DIR,	3161	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3164	0666;
2600		3165
2601	cf::cleanup "$!" if $!;	3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3167
2603	$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);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
2604	};	3173	};
2605	}	3174	}
2606	}	3175	}
2607		3176
2608	{	3177	{
…		…
2610		3179
2611	undef $Coro::AIO::WATCHER;	3180	undef $Coro::AIO::WATCHER;
2612	IO::AIO::max_poll_time $TICK * 0.1;	3181	IO::AIO::max_poll_time $TICK * 0.1;
2613	$AIO_POLL_WATCHER = Event->io (	3182	$AIO_POLL_WATCHER = Event->io (
2614	reentrant => 0,	3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
2615	fd => IO::AIO::poll_fileno,	3185	fd => IO::AIO::poll_fileno,
2616	poll => 'r',	3186	poll => 'r',
2617	prio => 6,	3187	prio => 6,
2618	data => WF_AUTOCANCEL,
2619	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2620	);	3189	);
2621	}	3190	}
2622		3191
2623	$WRITE_RUNTIME_WATCHER = Event->timer (	3192	my $_log_backtrace;
2624	reentrant => 0,	3193
2625	data => WF_AUTOCANCEL,	3194	sub _log_backtrace {
2626	after => 1,	3195	my ($msg, @addr) = @_;
2627	interval => 10,	3196
2628	prio => 6, # keep it lowest so it acts like a watchdog	3197	$msg =~ s/\n//;
2629	cb => Coro::unblock_sub {	3198
2630	write_runtime	3199	# limit the # of concurrent backtraces
2631	or warn "ERROR: unable to write runtime file: $!";	3200	if ($_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";
2632	},	3227	}
2633	);	3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2634		3232
2635	END { cf::emergency_save }	3233	END { cf::emergency_save }
2636		3234
2637	1	3235	1
2638		3236

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