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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.204 by root, Fri Feb 2 19:59:22 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
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$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
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
43		57
		58	our $RELOAD; # number of reloads so far
44	our @EVENT;	59	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		60
47	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(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	77	our $NEXT_TICK;
52	our $NOW;	78	our $NOW;
53	our $USE_FSYNC; # use fsync to write maps - default off	79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
54		83
55	our %CFG;	84	our %CFG;
56		85
57	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	87	our $RUNTIME;
59		88
60	our %PLAYER; # all users	89	our %PLAYER; # all users
61	our %MAP; # all maps	90	our %MAP; # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		92
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $tick_start; # for load detecting purposes
		99
71	binmode STDOUT;	100	binmode STDOUT;
72	binmode STDERR;	101	binmode STDERR;
73		102
74	# read virtual server time, if available	103	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
76	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
77	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
78	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
79	}	108	}
80		109
81	mkdir cf::localdir;	110	mkdir $_
82	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
83	mkdir cf::localdir . "/" . cf::tmpdir;
84	mkdir cf::localdir . "/" . cf::uniquedir;
85	mkdir $RANDOM_MAPS;
86		112
87	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
88		114
89	sub cf::map::normalise;	115	sub cf::map::normalise;
90		116
…		…
101	=item $cf::RUNTIME	127	=item $cf::RUNTIME
102		128
103	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
104	every server tick.	130	every server tick.
105		131
106	=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
107		135
108	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		140
111	=item $cf::NOW	141	=item $cf::NOW
112		142
113	The time of the last (current) server tick.	143	The time of the last (current) server tick.
114		144
115	=item $cf::TICK	145	=item $cf::TICK
116		146
117	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.
118		158
119	=item %cf::CFG	159	=item %cf::CFG
120		160
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
122	from wherever your confdir points to.	162	from wherever your confdir points to.
123		163
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		165
126	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
127	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
128	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.
129	window of cpu time available, or simply to synchronise to the server tick.
130		169
131	=back	170	=back
132		171
133	=cut	172	=cut
134		173
135	BEGIN {	174	BEGIN {
136	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	176	my $msg = join "", @_;
138	utf8::encode $msg;
139		177
140	$msg .= "\n"	178	$msg .= "\n"
141	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
142		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
143	LOG llevError, $msg;	184	LOG llevError, $msg;
144	};	185	};
145	}	186	}
146		187
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		195
154	# 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
155	# within the Safe compartment.	197	# within the Safe compartment.
156	for my $pkg (qw(	198	for my $pkg (qw(
157	cf::global cf::attachable	199	cf::global cf::attachable
…		…
165	}	207	}
166		208
167	$Event::DIED = sub {	209	$Event::DIED = sub {
168	warn "error in event callback: @_";	210	warn "error in event callback: @_";
169	};	211	};
		212
		213	#############################################################################
170		214
171	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
172		216
173	=over 4	217	=over 4
174		218
…		…
193	$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;
194	$d	238	$d
195	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
196	}	240	}
197		241
198	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
199		243
200	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
201		245
202	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
203		247
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
212		249
213	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
214		251
215	=cut	252	=cut
216		253
217	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
219	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
220	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
221		258
222	=item cf::lock_wait $string	259	=item cf::lock_wait $string
223		260
224	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
225		262
…		…
231	returned.	268	returned.
232		269
233	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
234	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
235		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
236	=cut	277	=cut
237		278
238	our %LOCK;	279	our %LOCK;
239		280
240	sub lock_wait($) {	281	sub lock_wait($) {
…		…
259	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
261	}	302	}
262	}	303	}
263		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
264	sub freeze_mainloop {	311	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
266		313
267	my $guard = Coro::guard {	314	my $guard = Coro::guard {
268	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
269	$WRITE_RUNTIME_WATCHER->start;
270	};	316	};
271	$WRITE_RUNTIME_WATCHER->stop;
272	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
273	$guard	318	$guard
274	}	319	}
275		320
276	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
283		328
284	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
285		330
286	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
287		332
288	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
291		337
292	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
295	fast or be very important.	341	fast or be very important.
…		…
298		344
299	sub sync_job(&) {	345	sub sync_job(&) {
300	my ($job) = @_;	346	my ($job) = @_;
301		347
302	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
303	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
305		353
306	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
307	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
318		366
319	while ($busy) {	367	while ($busy) {
320	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
321	}	369	}
322		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
323	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
324	} else {	379	} else {
325	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
326		381
327	$job->()	382	$job->()
…		…
346	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
347		402
348	$coro	403	$coro
349	}	404	}
350		405
351	sub write_runtime {	406	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		407
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
355	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.
356		412
357	my $value = $cf::RUNTIME + 90 + 10;	413	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		414
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	415	sub fork_call(&@) {
362	and return;	416	my ($cb, @args) = @_;
363		417
364	# always fsync - this file is important	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
365	aio_fsync $fh	419	# or die "socketpair: $!";
366	and return;	420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
367		422
		423	if (my $pid = fork) {
368	close $fh	424	close $fh2;
369	or return;
370		425
371	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
372	and return;	427	$res = Coro::Storable::thaw $res;
373		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
374	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		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 });
375	}	575	}
376		576
377	=back	577	=back
378		578
379	=cut	579	=cut
…		…
386	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")
387	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
388		588
389	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>
390	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
391	crossfire+).	591	Crossfire TRT).
392		592
393	=over 4	593	=over 4
394		594
395	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
396		596
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
560		760
561	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		765
566	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	767	my $pkg = shift @arg;
568		768
569	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
599	}	799	}
600		800
601	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
602	} else {	802	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	804	}
605		805
606	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
607	}	807	}
608		808
…		…
610	if (ref $_[0]) {	810	if (ref $_[0]) {
611	_object_attach @_;	811	_object_attach @_;
612	} else {	812	} else {
613	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
614	}	814	}
		815	_recalc_want;
615	};	816	};
616		817
617	# all those should be optimised	818	# all those should be optimised
618	sub cf::attachable::detach {	819	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
623	reattach ($obj);	824	reattach ($obj);
624	} else {	825	} else {
625	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
626	}	827	}
		828	_recalc_want;
627	};	829	};
628		830
629	sub cf::attachable::attached {	831	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
631		833
…		…
778	}	980	}
779	} else {	981	} else {
780	aio_unlink $filename;	982	aio_unlink $filename;
781	aio_unlink "$filename.pst";	983	aio_unlink "$filename.pst";
782	}	984	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	985	}
790	}	986	}
791		987
792	sub object_freezer_as_string {	988	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	989	my ($rdata, $objs) = @_;
…		…
799		995
800	sub object_thawer_load {	996	sub object_thawer_load {
801	my ($filename) = @_;	997	my ($filename) = @_;
802		998
803	my ($data, $av);	999	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1000
808	(aio_load $filename, $data) >= 0	1001	(aio_load $filename, $data) >= 0
809	or return;	1002	or return;
810		1003
811	unless (aio_stat "$filename.pst") {	1004	unless (aio_stat "$filename.pst") {
…		…
813	or return;	1006	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1008	}
816		1009
817	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1012	return ($data, $av);
820	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
821		1020
822	#############################################################################	1021	#############################################################################
823	# command handling &c	1022	# command handling &c
824		1023
825	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1038	}
840		1039
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1041
843	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.
844		1047
845	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
846	called.	1049	called.
847		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
848	=cut	1062	=cut
849		1063
850	sub register_extcmd {	1064	sub register_extcmd {
851	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
852		1066
853	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
854	}	1074	}
855		1075
856	cf::player->attach (	1076	cf::player->attach (
857	on_command => sub {	1077	on_command => sub {
858	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
883		1103
884	cf::override;	1104	cf::override;
885	},	1105	},
886	);	1106	);
887		1107
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
923	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1113	next unless -r $path;
925	eval {	1114
926	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;
927	1	1172	}
928	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
929	}	1178	};
930	}	1179	}
931		1180
932	#############################################################################	1181	#############################################################################
933		1182
		1183	=back
		1184
934	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
935		1186
936	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
937		1188
938	=cut	1189	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
951		1202
952	=cut	1203	=cut
953		1204
954	sub playerdir($) {	1205	sub playerdir($) {
955	cf::localdir	1206	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1208	}
961		1209
962	sub path($) {	1210	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1212
965	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
966	}	1214	}
967		1215
968	sub find_active($) {	1216	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1231	my $login = $_[0];
984		1232
985	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
986		1234
987	$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
988	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
989	or return;	1244	or return;
990	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
991	}	1246	}
992	}	1247	}
…		…
1029		1284
1030	=cut	1285	=cut
1031		1286
1032	sub quit_character {	1287	sub quit_character {
1033	my ($pl) = @_;	1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
1034		1291
1035	$pl->{deny_save} = 1;	1292	$pl->{deny_save} = 1;
1036	$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
1037		1294
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1300	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1301	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1302	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1303	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1326	}
1050		1327
1051	=item cf::player::list_logins	1328	=item cf::player::list_logins
1052		1329
1053	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
1054	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1055		1332
1056	=cut	1333	=cut
1057		1334
1058	sub list_logins {	1335	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1337	or return [];
1061		1338
1062	my @logins;	1339	my @logins;
1063		1340
1064	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1099	}	1376	}
1100		1377
1101	\@paths	1378	\@paths
1102	}	1379	}
1103		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
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1105		1415
1106	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1107		1417
1108	=cut	1418	=cut
1109		1419
1110	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1111	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1112		1422
1113	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1114
1115	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1116	}	1425	}
1117		1426
1118	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		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	$match
		1466	}
1119		1467
1120	=back	1468	=back
1121
1122		1469
1123	=head3 cf::map	1470	=head3 cf::map
1124		1471
1125	=over 4	1472	=over 4
1126		1473
…		…
1181	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1182		1529
1183	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1184	local $self->{path};	1531	local $self->{path};
1185	local $self->{load_path};	1532	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1533
1189	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1190	}	1535	}
1191		1536
1192	sub normalise {	1537	sub normalise {
…		…
1264		1609
1265	# the original (read-only) location	1610	# the original (read-only) location
1266	sub load_path {	1611	sub load_path {
1267	my ($self) = @_;	1612	my ($self) = @_;
1268		1613
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1270	}	1615	}
1271		1616
1272	# the temporary/swap location	1617	# the temporary/swap location
1273	sub save_path {	1618	sub save_path {
1274	my ($self) = @_;	1619	my ($self) = @_;
1275		1620
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1278	}	1623	}
1279		1624
1280	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1281	sub uniq_path {	1626	sub uniq_path {
1282	my ($self) = @_;	1627	my ($self) = @_;
1283		1628
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1286	}	1631	}
1287		1632
1288	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1289	# all maps in C++...	1634	# all maps in C++...
1290	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1292		1637
1293	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1294	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1295	}	1640	}
1296		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1297	sub unlink_save {	1650	sub unlink_save {
1298	my ($self) = @_;	1651	my ($self) = @_;
1299		1652
1300	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1656	}
1309		1657
1310	sub load_header_from($) {	1658	sub load_header_from($) {
1311	my ($self, $path) = @_;	1659	my ($self, $path) = @_;
1312		1660
…		…
1362	$self->load_header_orig	1710	$self->load_header_orig
1363	or return;	1711	or return;
1364	$self->prepare_orig;	1712	$self->prepare_orig;
1365	}	1713	}
1366		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
1367	1	1721	1
1368	}	1722	}
1369		1723
1370	sub find;	1724	sub find;
1371	sub find {	1725	sub find {
…		…
1383	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1384		1738
1385	$map->load_header	1739	$map->load_header
1386	or return;	1740	or return;
1387		1741
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1391	$map->reset;	1745	$map->reset;
1392	undef $guard;	1746	undef $guard;
1393	return find $path;	1747	return find $path;
…		…
1404	my ($self) = @_;	1758	my ($self) = @_;
1405		1759
1406	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1407		1761
1408	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1409	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1410		1766
1411	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1412		1768
1413	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1414		1770
1415	$self->alloc;	1771	$self->alloc;
1416		1772
1417	$self->pre_load;	1773	$self->pre_load;
1418
1419	$self->_load_objects ($self->{load_path}, 1)
1420	or return;
1421
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};
1424
1425	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);
1430	}
1431	}
1432
1433	Coro::cede;
1434
1435	# now do the right thing for maps
1436	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;	1774	Coro::cede;
1443	$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;
1444	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	1794	unless $self->difficulty;
1446	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($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;
1447	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	1808	}
1449		1809
1450	$self->post_load;	1810	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	1811	}
1454		1812
1455	sub customise_for {	1813	sub customise_for {
1456	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1457		1815
1458	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1460		1821
1461	$self	1822	$self
1462	}	1823	}
1463		1824
1464	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1575		1936
1576	sub reset_at {	1937	sub reset_at {
1577	my ($self) = @_;	1938	my ($self) = @_;
1578		1939
1579	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1582		1942
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		1945
…		…
1596	my ($self) = @_;	1956	my ($self) = @_;
1597		1957
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		1959
1600	return if $self->players;	1960	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		1961
1603	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	}
1604		1973
1605	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
1606		1975
1607	$self->in_memory (cf::MAP_SWAPPED);
1608	$self->clear;	1976	$self->clear;
1609		1977
1610	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1611		1979
1612	$self->unlink_save;	1980	$self->unlink_save;
…		…
1631	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1632		2000
1633	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1634	}	2002	}
1635		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
1636	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1637		2041
1638	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2043	instantiated unique items. May block.
1640		2044
1641	=cut	2045	=cut
1642		2046
1643	sub unique_maps() {	2047	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1645	or return;	2049	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2050	utf8::decode $_;
1651	next if /\.pst$/;	2051	/\.map$/
1652	next unless /^$PATH_SEP/o;	2052	? normalise $_
1653		2053	: ()
1654	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2055	]
1656
1657	\@paths
1658	}	2056	}
1659		2057
1660	package cf;	2058	package cf;
1661		2059
1662	=back	2060	=back
…		…
1708		2106
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2108
1711	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1716	}	2128	}
1717	}	2129	}
1718		2130
1719	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1720		2132
…		…
1768	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1769		2181
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2183
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1774		2186
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	2188	}
1777		2189
1778	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1780		2194
1781	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1782		2196
1783	unless ($map) {	2197	unless ($map) {
1784	# restore original map position	2198	# restore original map position
…		…
1802	$map->load;	2216	$map->load;
1803	$map->load_diag;	2217	$map->load_diag;
1804		2218
1805	return unless $self->contr->active;	2219	return unless $self->contr->active;
1806	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1807	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1808	}	2224	}
1809		2225
1810	cf::player->attach (
1811	on_logout => sub {
1812	my ($pl) = @_;
1813
1814	# abort map switching before logout
1815	if ($pl->ob->{_link_pos}) {
1816	cf::sync_job {
1817	$pl->ob->leave_link
1818	};
1819	}
1820	},
1821	on_login => sub {
1822	my ($pl) = @_;
1823
1824	# try to abort aborted map switching on player login :)
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841
1842	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1843		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
1844	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1845		2236
1846	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1847	my ($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;
1848		2242
1849	$self->enter_link;	2243	$self->enter_link;
1850		2244
1851	(async {	2245	(async {
1852	my $map = eval {	2246	my $map = eval {
1853	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1854	$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
1855	$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 $@;
1856	} or	2262	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1860	})->prio (1);	2268	})->prio (1);
1861	}	2269	}
1862		2270
1863	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1864		2272
…		…
1903		2311
1904	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1905		2313
1906	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1907	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1909		2317
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2320	undef $fh;
1913	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1922		2330
1923	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1924		2332
1925	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1926	#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
1927	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1928	}	2338	}
1929		2339
1930	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;
1931	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1939	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1940		2350
1941	1;	2351	1;
1942	}) {	2352	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2357
1948	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2359	$self->leave_link;
1950	}	2360	}
1951	})->prio (1);	2361	})->prio (1);
…		…
1964		2374
1965	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1967		2377
1968	utf8::encode $text;	2378	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2380	}
1971		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	}
1972		2432
1973	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1974		2434
1975	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1976	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>,
1977	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>.
1978		2438
1979	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
1980	reliable at some point in the future.	2440	become reliable at some point in the future.
1981		2441
1982	=cut	2442	=cut
1983		2443
1984	sub cf::client::query {	2444	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	2453	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		2455
1996	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1998	}	2460	}
1999		2461
2000	cf::client->attach (	2462	cf::client->attach (
2001	on_reply => sub {	2463	on_reply => sub {
2002	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2017	} else {	2479	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	2481	}
2020	}	2482	}
2021	},	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	},
2022	);	2502	);
2023		2503
2024	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2025		2505
2026	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073		2553
2074	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2075		2555
2076	=pod	2556	=pod
2077		2557
2078	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2079		2559
2080	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2081	cf::object::player player	2561	cf::object::player player
2082	cf::player peaceful	2562	cf::player peaceful
2083	cf::map trigger	2563	cf::map trigger
…		…
2164	=back	2644	=back
2165		2645
2166	=cut	2646	=cut
2167		2647
2168	#############################################################################	2648	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275
2276	#############################################################################
2277	# the server's init and main functions	2649	# the server's init and main functions
2278		2650
2279	sub load_resources {	2651	sub load_facedata($) {
2280	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"
2281	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;
2282	}	2737	}
2283		2738
2284	sub cfg_load {	2739	sub cfg_load {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	2741	or return;
2287		2742
2288	local $/;	2743	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2290		2745
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	2755	};
2301	warn $@ if $@;	2756	warn $@ if $@;
2302	}	2757	}
2303	}
2304
2305	sub init {
2306	load_resources;
2307	}	2758	}
2308		2759
2309	sub main {	2760	sub main {
2310	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
…		…
2314	Event::one_event;	2765	Event::one_event;
2315	})->prio (Coro::PRIO_MAX);	2766	})->prio (Coro::PRIO_MAX);
2316	};	2767	};
2317		2768
2318	cfg_load;	2769	cfg_load;
2319	db_load;	2770	db_init;
2320	load_extensions;	2771	load_extensions;
2321		2772
2322	$TICK_WATCHER->start;	2773	$TICK_WATCHER->start;
2323	Event::loop;	2774	Event::loop;
2324	}	2775	}
…		…
2339	},	2790	},
2340	);	2791	);
2341	}	2792	}
2342	}	2793	}
2343		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
2344	sub emergency_save() {	2833	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2346		2835
2347	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2348		2837
…		…
2363	my $map = $cf::MAP{$path} or next;	2852	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	2853	$map->valid or next;
2365	$map->save;	2854	$map->save;
2366	}	2855	}
2367	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 $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
2368	};	2861	};
2369		2862
2370	warn "leave emergency perl save\n";	2863	warn "leave emergency perl save\n";
2371	}	2864	}
2372		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2373	sub reload() {	2873	sub do_reload_perl() {
2374	# can/must only be called in main	2874	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2377	return;	2877	return;
2378	}	2878	}
2379		2879
2380	warn "reloading...";	2880	warn "reloading...";
2381		2881
2382	warn "cancelling server ticker";	2882	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2385	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2386		2888
2387	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2388	# 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
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392		2893
2393	warn "cancelling all WF_AUTOCANCEL watchers";	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}	2897	}
2397		2898
2398	warn "flushing outstanding aio requests";	2899	warn "flushing outstanding aio requests";
2399	for (;;) {	2900	for (;;) {
		2901	BDB::flush;
2400	IO::AIO::flush;	2902	IO::AIO::flush;
2401	Coro::cede;	2903	Coro::cede;
2402	last unless IO::AIO::nreqs;	2904	last unless IO::AIO::nreqs || BDB::nreqs;
2403	warn "iterate...";	2905	warn "iterate...";
2404	}	2906	}
		2907
		2908	++$RELOAD;
2405		2909
2406	warn "cancelling all extension coros";	2910	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	2912	%EXT_CORO = ();
2409		2913
2410	warn "removing commands";	2914	warn "removing commands";
2411	%COMMAND = ();	2915	%COMMAND = ();
2412		2916
2413	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2414	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2415		2920
2416	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2419		2924
…		…
2449	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2450	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);
2451		2956
2452	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2454		2960
2455	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2456	# and global variables created in xs	2962	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2458		2964
…		…
2462	require cf;	2968	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2464		2970
2465	warn "loading config and database again";	2971	warn "loading config and database again";
2466	cf::cfg_load;	2972	cf::cfg_load;
2467	cf::db_load;
2468		2973
2469	warn "loading extensions";	2974	warn "loading extensions";
2470	cf::load_extensions;	2975	cf::load_extensions;
2471		2976
2472	warn "reattaching attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2473	_global_reattach;	2978	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2476		2983
2477	warn "loading reloadable resources";	2984	warn "leaving sync_job";
2478	load_resources;
2479		2985
2480	warn "restarting server ticker";	2986	1
2481		2987	} or do {
2482	$TICK_WATCHER->start;
2483	};
2484
2485	if ($@) {
2486	warn $@;	2988	warn $@;
2487	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2488	exit 1;	2990	exit 1;
2489	}	2991	};
2490		2992
2491	warn "reloaded";	2993	warn "reloaded";
2492	};	2994	};
2493		2995
2494	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2495		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 $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2496	register_command "reload" => sub {	3013	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2498		3015
2499	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2501		3018	async { reload_perl };
2502	# doing reload synchronously and two reloads happen back-to-back,
2503	# coro crashes during coro_state_free->destroy here.
2504
2505	$RELOAD_WATCHER ||= Event->timer (
2506	reentrant => 0,
2507	after => 0,
2508	data => WF_AUTOCANCEL,
2509	cb => sub {
2510	reload;
2511	undef $RELOAD_WATCHER;
2512	},
2513	);
2514	}	3019	}
2515	};	3020	};
2516		3021
2517	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2518		3023
2519	my $bug_warning = 0;	3024	my $bug_warning = 0;
2520		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;
2521	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2522	reentrant => 0,	3050	reentrant => 0,
2523	parked => 1,	3051	parked => 1,
2524	prio => 0,	3052	prio => 0,
2525	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2531	return;	3059	return;
2532	}	3060	}
2533		3061
2534	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2535		3063
2536	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
2537	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2539		3091
2540	$WAIT_FOR_TICK->broadcast;	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
2542		3094	Coro::async_pool {
2543	Event::sweep;	3095	write_runtime
2544	Coro::cede_notself;	3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
2545		3098	}
		3099
2546	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2548		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
2549	# 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
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2551		3114
2552	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2553	$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
2554	},	3124	},
2555	);	3125	);
2556		3126
		3127	{
		3128	BDB::max_poll_time $TICK * 0.1;
		3129	$BDB_POLL_WATCHER = Event->io (
		3130	reentrant => 0,
		3131	fd => BDB::poll_fileno,
		3132	poll => 'r',
		3133	prio => 0,
		3134	data => WF_AUTOCANCEL,
		3135	cb => \&BDB::poll_cb,
		3136	);
		3137	BDB::min_parallel 8;
		3138
		3139	BDB::set_sync_prepare {
		3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		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 $@;
		3173	};
		3174	}
		3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
2557	IO::AIO::max_poll_time $TICK * 0.1;	3181	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (	3182	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,	3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
2562	fd => IO::AIO::poll_fileno,	3185	fd => IO::AIO::poll_fileno,
2563	poll => 'r',	3186	poll => 'r',
2564	prio => 6,	3187	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2567	);	3189	);
		3190	}
2568		3191
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	3192	my $_log_backtrace;
2570	reentrant => 0,	3193
2571	data => WF_AUTOCANCEL,	3194	sub _log_backtrace {
2572	after => 1,	3195	my ($msg, @addr) = @_;
2573	interval => 10,	3196
2574	prio => 6, # keep it lowest so it acts like a watchdog	3197	$msg =~ s/\n//;
2575	cb => Coro::unblock_sub {	3198
2576	write_runtime	3199	# limit the # of concurrent backtraces
2577	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";
2578	},	3227	}
2579	);	3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2580		3232
2581	END { cf::emergency_save }	3233	END { cf::emergency_save }
2582		3234
2583	1	3235	1
2584		3236

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