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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 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 JSON::XS 1.4 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
27		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$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		42
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
34		45
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
37	our %COMMAND = ();	50	our %COMMAND = ();
38	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
39		52
40	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
44		58
		59	our $RELOAD; # number of reloads so far
45	our @EVENT;	60	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		61
48	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
49	our $TICK_WATCHER;	75	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	78	our $NEXT_TICK;
53	our $NOW;	79	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		81
56	our $BDB_POLL_WATCHER;	82	our $BDB_POLL_WATCHER;
…		…
62	our $RUNTIME;	88	our $RUNTIME;
63		89
64	our %PLAYER; # all users	90	our %PLAYER; # all users
65	our %MAP; # all maps	91	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
73	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
76	binmode STDOUT;	101	binmode STDOUT;
77	binmode STDERR;	102	binmode STDERR;
78		103
79	# read virtual server time, if available	104	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
84	}	109	}
85		110
86	mkdir cf::localdir;	111	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	112	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		113
93	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
94		115
95	sub cf::map::normalise;	116	sub cf::map::normalise;
96		117
…		…
107	=item $cf::RUNTIME	128	=item $cf::RUNTIME
108		129
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	131	every server tick.
111		132
112	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		136
114	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
116		141
117	=item $cf::NOW	142	=item $cf::NOW
118		143
119	The time of the last (current) server tick.	144	The time of the last (current) server tick.
120		145
121	=item $cf::TICK	146	=item $cf::TICK
122		147
123	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
124		159
125	=item %cf::CFG	160	=item %cf::CFG
126		161
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
128	from wherever your confdir points to.	163	from wherever your confdir points to.
129		164
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		166
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	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	168	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	169	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		170
137	=back	171	=back
138		172
139	=cut	173	=cut
140		174
141	BEGIN {	175	BEGIN {
142	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	177	my $msg = join "", @_;
144	utf8::encode $msg;
145		178
146	$msg .= "\n"	179	$msg .= "\n"
147	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
148		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
149	LOG llevError, $msg;	185	LOG llevError, $msg;
150	};	186	};
151	}	187	}
152		188
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		196
160	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	198	# within the Safe compartment.
162	for my $pkg (qw(	199	for my $pkg (qw(
163	cf::global cf::attachable	200	cf::global cf::attachable
…		…
171	}	208	}
172		209
173	$Event::DIED = sub {	210	$Event::DIED = sub {
174	warn "error in event callback: @_";	211	warn "error in event callback: @_";
175	};	212	};
		213
		214	#############################################################################
176		215
177	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
178		217
179	=over 4	218	=over 4
180		219
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	239	$d
201	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
202	}	241	}
203		242
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
207		244
208	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
209		246
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
218		248
219	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
220		250
221	=cut	251	=cut
222		252
223	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
225	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
226	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
227		257
228	=item cf::lock_wait $string	258	=item cf::lock_wait $string
229		259
230	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
231		261
…		…
237	returned.	267	returned.
238		268
239	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
241		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
242	=cut	276	=cut
243		277
244	our %LOCK;	278	our %LOCK;
245		279
246	sub lock_wait($) {	280	sub lock_wait($) {
…		…
265	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
267	}	301	}
268	}	302	}
269		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
270	sub freeze_mainloop {	310	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
272		312
273	my $guard = Coro::guard {	313	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	315	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
279	$guard	317	$guard
280	}	318	}
281		319
282	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
289		327
290	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
291		329
292	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
293		331
294	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
297		336
298	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
301	fast or be very important.	340	fast or be very important.
…		…
304		343
305	sub sync_job(&) {	344	sub sync_job(&) {
306	my ($job) = @_;	345	my ($job) = @_;
307		346
308	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
309	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
311		352
312	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
324		365
325	while ($busy) {	366	while ($busy) {
326	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
327	}	368	}
328		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
329	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
330	} else {	378	} else {
331	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
332		380
333	$job->()	381	$job->()
…		…
352	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
353		401
354	$coro	402	$coro
355	}	403	}
356		404
357	sub write_runtime {	405	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		406
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
361	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
362		411
363	my $value = $cf::RUNTIME + 90 + 10;	412	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		413
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
368	and return;	415	my ($cb, @args) = @_;
369		416
370	# always fsync - this file is important	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
371	aio_fsync $fh	418	# or die "socketpair: $!";
372	and return;	419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
373		421
		422	if (my $pid = fork) {
374	close $fh	423	close $fh2;
375	or return;
376		424
377	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
378	and return;	426	$res = Coro::Storable::thaw $res;
379		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
380	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	574	}
382		575
383	=back	576	=back
384		577
385	=cut	578	=cut
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
394		587
395	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	590	Crossfire TRT).
398		591
399	=over 4	592	=over 4
400		593
401	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
402		595
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
566		759
567	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		764
572	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	766	my $pkg = shift @arg;
574		767
575	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
605	}	798	}
606		799
607	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
608	} else {	801	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	803	}
611		804
612	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
613	}	806	}
614		807
…		…
616	if (ref $_[0]) {	809	if (ref $_[0]) {
617	_object_attach @_;	810	_object_attach @_;
618	} else {	811	} else {
619	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
620	}	813	}
		814	_recalc_want;
621	};	815	};
622		816
623	# all those should be optimised	817	# all those should be optimised
624	sub cf::attachable::detach {	818	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
629	reattach ($obj);	823	reattach ($obj);
630	} else {	824	} else {
631	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
632	}	826	}
		827	_recalc_want;
633	};	828	};
634		829
635	sub cf::attachable::attached {	830	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
637		832
…		…
784	}	979	}
785	} else {	980	} else {
786	aio_unlink $filename;	981	aio_unlink $filename;
787	aio_unlink "$filename.pst";	982	aio_unlink "$filename.pst";
788	}	983	}
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	}	984	}
796	}	985	}
797		986
798	sub object_freezer_as_string {	987	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	988	my ($rdata, $objs) = @_;
…		…
805		994
806	sub object_thawer_load {	995	sub object_thawer_load {
807	my ($filename) = @_;	996	my ($filename) = @_;
808		997
809	my ($data, $av);	998	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		999
814	(aio_load $filename, $data) >= 0	1000	(aio_load $filename, $data) >= 0
815	or return;	1001	or return;
816		1002
817	unless (aio_stat "$filename.pst") {	1003	unless (aio_stat "$filename.pst") {
…		…
819	or return;	1005	or return;
820	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
821	}	1007	}
822		1008
823	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
825	return ($data, $av);	1011	return ($data, $av);
826	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
827		1019
828	#############################################################################	1020	#############################################################################
829	# command handling &c	1021	# command handling &c
830		1022
831	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1037	}
846		1038
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1040
849	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
850		1046
851	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
852	called.	1048	called.
853		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
854	=cut	1061	=cut
855		1062
856	sub register_extcmd {	1063	sub register_extcmd {
857	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
858		1065
859	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
860	}	1073	}
861		1074
862	cf::player->attach (	1075	cf::player->attach (
863	on_command => sub {	1076	on_command => sub {
864	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
889		1102
890	cf::override;	1103	cf::override;
891	},	1104	},
892	);	1105	);
893		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
929	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1112	next unless -r $path;
931	eval {	1113
932	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
933	1	1171	}
934	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
935	}	1177	};
936	}	1178	}
937		1179
938	#############################################################################	1180	#############################################################################
939		1181
		1182	=back
		1183
940	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
941		1185
942	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
943		1187
944	=cut	1188	=cut
…		…
956	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
957		1201
958	=cut	1202	=cut
959		1203
960	sub playerdir($) {	1204	sub playerdir($) {
961	cf::localdir	1205	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1207	}
967		1208
968	sub path($) {	1209	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1211
971	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
972	}	1213	}
973		1214
974	sub find_active($) {	1215	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1230	my $login = $_[0];
990		1231
991	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
992		1233
993	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
994	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
995	or return;	1243	or return;
996	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
997	}	1245	}
998	}	1246	}
…		…
1035		1283
1036	=cut	1284	=cut
1037		1285
1038	sub quit_character {	1286	sub quit_character {
1039	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1040		1290
1041	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1043		1293
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1054	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1055	}	1325	}
1056		1326
1057	=item cf::player::list_logins	1327	=item cf::player::list_logins
1058		1328
1059	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1061		1331
1062	=cut	1332	=cut
1063		1333
1064	sub list_logins {	1334	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1336	or return [];
1067		1337
1068	my @logins;	1338	my @logins;
1069		1339
1070	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1105	}	1375	}
1106		1376
1107	\@paths	1377	\@paths
1108	}	1378	}
1109		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1111		1414
1112	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1113		1416
1114	=cut	1417	=cut
1115		1418
1116	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1117	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1118		1421
1119	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1120
1121	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1122	}	1424	}
1123		1425
1124	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
		1453	my ($path) = @_;
		1454
		1455	my ($match, $specificity);
		1456
		1457	for my $region (list) {
		1458	if ($region->match && $path =~ $region->match) {
		1459	($match, $specificity) = ($region, $region->specificity)
		1460	if $region->specificity > $specificity;
		1461	}
		1462	}
		1463
		1464	$match
		1465	}
1125		1466
1126	=back	1467	=back
1127
1128		1468
1129	=head3 cf::map	1469	=head3 cf::map
1130		1470
1131	=over 4	1471	=over 4
1132		1472
…		…
1187	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1188		1528
1189	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1190	local $self->{path};	1530	local $self->{path};
1191	local $self->{load_path};	1531	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1532
1195	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1196	}	1534	}
1197		1535
1198	sub normalise {	1536	sub normalise {
…		…
1270		1608
1271	# the original (read-only) location	1609	# the original (read-only) location
1272	sub load_path {	1610	sub load_path {
1273	my ($self) = @_;	1611	my ($self) = @_;
1274		1612
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1276	}	1614	}
1277		1615
1278	# the temporary/swap location	1616	# the temporary/swap location
1279	sub save_path {	1617	sub save_path {
1280	my ($self) = @_;	1618	my ($self) = @_;
1281		1619
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1284	}	1622	}
1285		1623
1286	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1287	sub uniq_path {	1625	sub uniq_path {
1288	my ($self) = @_;	1626	my ($self) = @_;
1289		1627
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1292	}	1630	}
1293		1631
1294	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1295	# all maps in C++...	1633	# all maps in C++...
1296	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1298		1636
1299	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1301	}	1639	}
1302		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
1303	sub unlink_save {	1649	sub unlink_save {
1304	my ($self) = @_;	1650	my ($self) = @_;
1305		1651
1306	utf8::encode (my $save = $self->save_path);	1652	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1654	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	}	1655	}
1315		1656
1316	sub load_header_from($) {	1657	sub load_header_from($) {
1317	my ($self, $path) = @_;	1658	my ($self, $path) = @_;
1318		1659
…		…
1368	$self->load_header_orig	1709	$self->load_header_orig
1369	or return;	1710	or return;
1370	$self->prepare_orig;	1711	$self->prepare_orig;
1371	}	1712	}
1372		1713
		1714	$self->{deny_reset} = 1
		1715	if $self->no_reset;
		1716
		1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
		1719
1373	1	1720	1
1374	}	1721	}
1375		1722
1376	sub find;	1723	sub find;
1377	sub find {	1724	sub find {
…		…
1389	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1390		1737
1391	$map->load_header	1738	$map->load_header
1392	or return;	1739	or return;
1393		1740
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1397	$map->reset;	1744	$map->reset;
1398	undef $guard;	1745	undef $guard;
1399	return find $path;	1746	return find $path;
…		…
1410	my ($self) = @_;	1757	my ($self) = @_;
1411		1758
1412	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1413		1760
1414	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1415	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1416		1765
1417	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1418		1767
1419	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1420		1769
1421	$self->alloc;	1770	$self->alloc;
1422		1771
1423	$self->pre_load;	1772	$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;	1773	Coro::cede;
1449	$self->set_darkness_map;	1774
		1775	$self->_load_objects ($self->{load_path}, 1)
		1776	or return;
		1777
		1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
		1780
		1781	if (my $uniq = $self->uniq_path) {
		1782	utf8::encode $uniq;
		1783	if (aio_open $uniq, O_RDONLY, 0) {
		1784	$self->clear_unique_items;
		1785	$self->_load_objects ($uniq, 0);
		1786	}
		1787	}
		1788
		1789	Coro::cede;
		1790	# now do the right thing for maps
		1791	$self->link_multipart_objects;
1450	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	1793	unless $self->difficulty;
1452	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1453	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1454	}	1807	}
1455		1808
1456	$self->post_load;	1809	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1810	}
1460		1811
1461	sub customise_for {	1812	sub customise_for {
1462	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1463		1814
1464	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1466		1820
1467	$self	1821	$self
1468	}	1822	}
1469		1823
1470	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1581		1935
1582	sub reset_at {	1936	sub reset_at {
1583	my ($self) = @_;	1937	my ($self) = @_;
1584		1938
1585	# TODO: safety, remove and allow resettable per-player maps	1939	# 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};	1940	return 1e99 if $self->{deny_reset};
1588		1941
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		1944
…		…
1602	my ($self) = @_;	1955	my ($self) = @_;
1603		1956
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		1958
1606	return if $self->players;	1959	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		1960
1609	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1610		1972
1611	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
1612		1974
1613	$self->in_memory (cf::MAP_SWAPPED);
1614	$self->clear;	1975	$self->clear;
1615		1976
1616	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1617		1978
1618	$self->unlink_save;	1979	$self->unlink_save;
…		…
1637	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1638		1999
1639	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1640	}	2001	}
1641		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1642	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1643		2040
1644	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2042	instantiated unique items. May block.
1646		2043
1647	=cut	2044	=cut
1648		2045
1649	sub unique_maps() {	2046	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1651	or return;	2048	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2049	utf8::decode $_;
1657	next if /\.pst$/;	2050	/\.map$/
1658	next unless /^$PATH_SEP/o;	2051	? normalise $_
1659		2052	: ()
1660	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2054	]
1662
1663	\@paths
1664	}	2055	}
1665		2056
1666	package cf;	2057	package cf;
1667		2058
1668	=back	2059	=back
…		…
1714		2105
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2107
1717	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1719	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1722	}	2127	}
1723	}	2128	}
1724		2129
1725	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1726		2131
…		…
1774	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1775		2180
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2182
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1780		2185
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2187	}
1783		2188
1784	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1786		2193
1787	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1788		2195
1789	unless ($map) {	2196	unless ($map) {
1790	# restore original map position	2197	# restore original map position
…		…
1808	$map->load;	2215	$map->load;
1809	$map->load_diag;	2216	$map->load_diag;
1810		2217
1811	return unless $self->contr->active;	2218	return unless $self->contr->active;
1812	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1814	}	2223	}
1815		2224
1816	cf::player->attach (
1817	on_logout => sub {
1818	my ($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)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1849		2226
		2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
		2231
1850	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1851		2235
1852	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2241
1855	$self->enter_link;	2242	$self->enter_link;
1856		2243
1857	(async {	2244	(async {
1858	my $map = eval {	2245	my $map = eval {
1859	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
		2254
1861	$map	2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2261	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1866	})->prio (1);	2267	})->prio (1);
1867	}	2268	}
1868		2269
1869	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1870		2271
…		…
1909		2310
1910	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1911		2312
1912	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1915		2316
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2319	undef $fh;
1919	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1928		2329
1929	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1930		2331
1931	if ($exit->slaying eq "/!") {	2332	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2336	cf::sync_job { prepare_random_map $exit };
1934	}	2337	}
1935		2338
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2340	my $hp = $exit->stats->hp;
…		…
1945	$self->goto ($slaying, $hp, $sp);	2348	$self->goto ($slaying, $hp, $sp);
1946		2349
1947	1;	2350	1;
1948	}) {	2351	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2356
1954	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2358	$self->leave_link;
1956	}	2359	}
1957	})->prio (1);	2360	})->prio (1);
…		…
1970		2373
1971	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1973		2376
1974	utf8::encode $text;	2377	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2379	}
1977		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1978		2431
1979	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1980		2433
1981	Queues a query to the client, calling the given callback with	2434	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>,	2435	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>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2437
1985	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2439	become reliable at some point in the future.
1987		2440
1988	=cut	2441	=cut
1989		2442
1990	sub cf::client::query {	2443	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2452	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2454
2002	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
2004	}	2459	}
2005		2460
2006	cf::client->attach (	2461	cf::client->attach (
2007	on_reply => sub {	2462	on_reply => sub {
2008	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
2023	} else {	2478	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2480	}
2026	}	2481	}
2027	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
2028	);	2501	);
2029		2502
2030	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2031		2504
2032	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
…		…
2079		2552
2080	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
2081		2554
2082	=pod	2555	=pod
2083		2556
2084	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
2085		2558
2086	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
2087	cf::object::player player	2560	cf::object::player player
2088	cf::player peaceful	2561	cf::player peaceful
2089	cf::map trigger	2562	cf::map trigger
…		…
2170	=back	2643	=back
2171		2644
2172	=cut	2645	=cut
2173		2646
2174	#############################################################################	2647	#############################################################################
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]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	2648	# the server's init and main functions
2284		2649
2285	sub load_resources {	2650	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2651	my ($path) = @_;
		2652
		2653	warn "loading facedata from $path\n";
		2654
		2655	my $facedata;
		2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
		2658
		2659	$facedata = Coro::Storable::thaw $facedata;
		2660
		2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2663
		2664	{
		2665	my $faces = $facedata->{faceinfo};
		2666
		2667	while (my ($face, $info) = each %$faces) {
		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2672	Coro::cede;
		2673	}
		2674
		2675	while (my ($face, $info) = each %$faces) {
		2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
		2727	sub reload_resources {
		2728	warn "reloading resource files...\n";
		2729
		2730	reload_regions;
		2731	reload_facedata;
		2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
		2737	}
		2738
		2739	sub init {
		2740	reload_resources;
2288	}	2741	}
2289		2742
2290	sub cfg_load {	2743	sub cfg_load {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	2745	or return;
2293		2746
2294	local $/;	2747	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
2296		2749
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2757	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	2758	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	2759	};
2307	warn $@ if $@;	2760	warn $@ if $@;
2308	}	2761	}
2309	}
2310
2311	sub init {
2312	load_resources;
2313	}	2762	}
2314		2763
2315	sub main {	2764	sub main {
2316	# we must not ever block the main coroutine	2765	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	2766	local $Coro::idle = sub {
…		…
2320	Event::one_event;	2769	Event::one_event;
2321	})->prio (Coro::PRIO_MAX);	2770	})->prio (Coro::PRIO_MAX);
2322	};	2771	};
2323		2772
2324	cfg_load;	2773	cfg_load;
2325	db_load;	2774	db_init;
2326	load_extensions;	2775	load_extensions;
2327		2776
2328	$TICK_WATCHER->start;	2777	$TICK_WATCHER->start;
2329	Event::loop;	2778	Event::loop;
2330	}	2779	}
…		…
2345	},	2794	},
2346	);	2795	);
2347	}	2796	}
2348	}	2797	}
2349		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
		2835	}
		2836
2350	sub emergency_save() {	2837	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	2838	my $freeze_guard = cf::freeze_mainloop;
2352		2839
2353	warn "enter emergency perl save\n";	2840	warn "enter emergency perl save\n";
2354		2841
…		…
2369	my $map = $cf::MAP{$path} or next;	2856	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	2857	$map->valid or next;
2371	$map->save;	2858	$map->save;
2372	}	2859	}
2373	warn "end emergency map save\n";	2860	warn "end emergency map save\n";
		2861
		2862	warn "begin emergency database checkpoint\n";
		2863	BDB::db_env_txn_checkpoint $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
2374	};	2865	};
2375		2866
2376	warn "leave emergency perl save\n";	2867	warn "leave emergency perl save\n";
2377	}	2868	}
2378		2869
		2870	sub post_cleanup {
		2871	my ($make_core) = @_;
		2872
		2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
		2876
2379	sub reload() {	2877	sub do_reload_perl() {
2380	# can/must only be called in main	2878	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	2880	warn "can only reload from main coroutine";
2383	return;	2881	return;
2384	}	2882	}
2385		2883
2386	warn "reloading...";	2884	warn "reloading...";
2387		2885
2388	warn "cancelling server ticker";	2886	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
2392		2892
2393	eval {	2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
2394	# if anything goes wrong in here, we should simply crash as we already saved	2896	# 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		2897
2399	warn "cancelling all WF_AUTOCANCEL watchers";	2898	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}	2901	}
2403		2902
2404	warn "flushing outstanding aio requests";	2903	warn "flushing outstanding aio requests";
2405	for (;;) {	2904	for (;;) {
		2905	BDB::flush;
2406	IO::AIO::flush;	2906	IO::AIO::flush;
2407	Coro::cede;	2907	Coro::cede;
2408	last unless IO::AIO::nreqs;	2908	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	2909	warn "iterate...";
2410	}	2910	}
		2911
		2912	++$RELOAD;
2411		2913
2412	warn "cancelling all extension coros";	2914	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	2915	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	2916	%EXT_CORO = ();
2415		2917
2416	warn "removing commands";	2918	warn "removing commands";
2417	%COMMAND = ();	2919	%COMMAND = ();
2418		2920
2419	warn "removing ext commands";	2921	warn "removing ext/exti commands";
2420	%EXTCMD = ();	2922	%EXTCMD = ();
		2923	%EXTICMD = ();
2421		2924
2422	warn "unloading/nuking all extensions";	2925	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	2926	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	2927	warn "... unloading $pkg";
2425		2928
…		…
2455	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		2960
2458	warn "unloading cf.pm \"a bit\"";	2961	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2460		2964
2461	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2462	# and global variables created in xs	2966	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2464		2968
…		…
2468	require cf;	2972	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		2974
2471	warn "loading config and database again";	2975	warn "loading config and database again";
2472	cf::cfg_load;	2976	cf::cfg_load;
2473	cf::db_load;
2474		2977
2475	warn "loading extensions";	2978	warn "loading extensions";
2476	cf::load_extensions;	2979	cf::load_extensions;
2477		2980
2478	warn "reattaching attachments to objects/players";	2981	warn "reattaching attachments to objects/players";
2479	_global_reattach;	2982	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	2983	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
2482		2987
2483	warn "loading reloadable resources";	2988	warn "leaving sync_job";
2484	load_resources;
2485		2989
2486	warn "restarting server ticker";	2990	1
2487		2991	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	2992	warn $@;
2493	warn "error while reloading, exiting.";	2993	warn "error while reloading, exiting.";
2494	exit 1;	2994	exit 1;
2495	}	2995	};
2496		2996
2497	warn "reloaded";	2997	warn "reloaded";
2498	};	2998	};
2499		2999
2500	our $RELOAD_WATCHER; # used only during reload	3000	our $RELOAD_WATCHER; # used only during reload
2501		3001
		3002	sub reload_perl() {
		3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
		3005
		3006	$RELOAD_WATCHER ||= Event->timer (
		3007	reentrant => 0,
		3008	after => 0,
		3009	data => WF_AUTOCANCEL,
		3010	cb => sub {
		3011	do_reload_perl;
		3012	undef $RELOAD_WATCHER;
		3013	},
		3014	);
		3015	}
		3016
2502	register_command "reload" => sub {	3017	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2504		3019
2505	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3021	$who->message ("reloading server.");
2507		3022	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	}	3023	}
2521	};	3024	};
2522		3025
2523	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2524		3027
2525	my $bug_warning = 0;	3028	my $bug_warning = 0;
2526		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
2527	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2528	reentrant => 0,	3054	reentrant => 0,
2529	parked => 1,	3055	parked => 1,
2530	prio => 0,	3056	prio => 0,
2531	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
…		…
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3062	unless ++$bug_warning > 10;
2537	return;	3063	return;
2538	}	3064	}
2539		3065
2540	$NOW = Event::time;	3066	$NOW = $tick_start = Event::time;
2541		3067
2542	cf::server_tick; # one server iteration	3068	cf::server_tick; # one server iteration
		3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3091	};
		3092
2543	$RUNTIME += $TICK;	3093	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2545		3095
2546	$WAIT_FOR_TICK->broadcast;	3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
2548		3098	Coro::async_pool {
2549	Event::sweep;	3099	write_runtime
2550	Coro::cede_notself;	3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
2551		3102	}
		3103
2552	# my $AFTER = Event::time;	3104	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#	3105	# warn $AFTER - $NOW;#d#
2554		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
		3115
2555	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2557		3118
2558	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
2560	},	3128	},
2561	);	3129	);
2562		3130
2563	{	3131	{
2564	BDB::max_poll_time $TICK * 0.1;	3132	BDB::max_poll_time $TICK * 0.1;
…		…
2589		3157
2590	unless ($DB_ENV) {	3158	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3159	$DB_ENV = BDB::db_env_create;
2592		3160
2593	cf::sync_job {	3161	cf::sync_job {
		3162	eval {
2594	BDB::db_env_open	3163	BDB::db_env_open
2595	$DB_ENV,	3164	$DB_ENV,
2596	$BDB_ENV_DIR,	3165	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3168	0666;
2600		3169
2601	cf::cleanup "$!" if $!;	3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3171
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2604	$DB_ENV->set_lk_detect;	3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3177	};
2606	}	3178	}
2607	}	3179	}
2608		3180
2609	{	3181	{
…		…
2611		3183
2612	undef $Coro::AIO::WATCHER;	3184	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3185	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3186	$AIO_POLL_WATCHER = Event->io (
2615	reentrant => 0,	3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
2616	fd => IO::AIO::poll_fileno,	3189	fd => IO::AIO::poll_fileno,
2617	poll => 'r',	3190	poll => 'r',
2618	prio => 6,	3191	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,	3192	cb => \&IO::AIO::poll_cb,
2621	);	3193	);
2622	}	3194	}
2623		3195
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3196	my $_log_backtrace;
2625	reentrant => 0,	3197
2626	data => WF_AUTOCANCEL,	3198	sub _log_backtrace {
2627	after => 1,	3199	my ($msg, @addr) = @_;
2628	interval => 10,	3200
2629	prio => 6, # keep it lowest so it acts like a watchdog	3201	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3202
2631	write_runtime	3203	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3231	}
2634	);	3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
2635		3236
2636	END { cf::emergency_save }	3237	END { cf::emergency_save }
2637		3238
2638	1	3239	1
2639		3240

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