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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 1.289 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 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		42
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$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
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	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(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
53	our $USE_FSYNC; # use fsync to write maps - default off	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
54		84
55	our %CFG;	85	our %CFG;
56		86
57	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	88	our $RUNTIME;
59		89
60	our %PLAYER; # all users	90	our %PLAYER; # all users
61	our %MAP; # all maps	91	our %MAP; # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $tick_start; # for load detecting purposes
		100
71	binmode STDOUT;	101	binmode STDOUT;
72	binmode STDERR;	102	binmode STDERR;
73		103
74	# read virtual server time, if available	104	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
76	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
77	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
78	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
79	}	109	}
80		110
81	mkdir cf::localdir;	111	mkdir $_
82	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
83	mkdir cf::localdir . "/" . cf::tmpdir;
84	mkdir cf::localdir . "/" . cf::uniquedir;
85	mkdir $RANDOM_MAPS;
86		113
87	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
88		115
89	sub cf::map::normalise;	116	sub cf::map::normalise;
90		117
…		…
101	=item $cf::RUNTIME	128	=item $cf::RUNTIME
102		129
103	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
104	every server tick.	131	every server tick.
105		132
106	=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
107		136
108	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		141
111	=item $cf::NOW	142	=item $cf::NOW
112		143
113	The time of the last (current) server tick.	144	The time of the last (current) server tick.
114		145
115	=item $cf::TICK	146	=item $cf::TICK
116		147
117	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.
118		159
119	=item %cf::CFG	160	=item %cf::CFG
120		161
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
122	from wherever your confdir points to.	163	from wherever your confdir points to.
123		164
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		166
126	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
127	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
128	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.
129	window of cpu time available, or simply to synchronise to the server tick.
130		170
131	=back	171	=back
132		172
133	=cut	173	=cut
134		174
135	BEGIN {	175	BEGIN {
136	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	177	my $msg = join "", @_;
138	utf8::encode $msg;
139		178
140	$msg .= "\n"	179	$msg .= "\n"
141	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
142		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
143	LOG llevError, $msg;	185	LOG llevError, $msg;
144	};	186	};
145	}	187	}
146		188
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		196
154	# 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
155	# within the Safe compartment.	198	# within the Safe compartment.
156	for my $pkg (qw(	199	for my $pkg (qw(
157	cf::global cf::attachable	200	cf::global cf::attachable
…		…
165	}	208	}
166		209
167	$Event::DIED = sub {	210	$Event::DIED = sub {
168	warn "error in event callback: @_";	211	warn "error in event callback: @_";
169	};	212	};
		213
		214	#############################################################################
170		215
171	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
172		217
173	=over 4	218	=over 4
174		219
…		…
193	$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;
194	$d	239	$d
195	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
196	}	241	}
197		242
198	use JSON::Syck (); # TODO# replace by JSON::PC once working
199
200	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
201		244
202	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
203		246
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
212		248
213	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
214		250
215	=cut	251	=cut
216		252
217	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
219	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
220	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
221		257
222	=item cf::lock_wait $string	258	=item cf::lock_wait $string
223		259
224	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
225		261
…		…
231	returned.	267	returned.
232		268
233	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
234	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
235		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
236	=cut	276	=cut
237		277
238	our %LOCK;	278	our %LOCK;
239		279
240	sub lock_wait($) {	280	sub lock_wait($) {
…		…
259	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
261	}	301	}
262	}	302	}
263		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
264	sub freeze_mainloop {	310	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
266		312
267	my $guard = Coro::guard {	313	my $guard = Coro::guard {
268	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
269	$WRITE_RUNTIME_WATCHER->start;
270	};	315	};
271	$WRITE_RUNTIME_WATCHER->stop;
272	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
273	$guard	317	$guard
274	}	318	}
275		319
276	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
283		327
284	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
285		329
286	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
287		331
288	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
291		336
292	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
295	fast or be very important.	340	fast or be very important.
…		…
298		343
299	sub sync_job(&) {	344	sub sync_job(&) {
300	my ($job) = @_;	345	my ($job) = @_;
301		346
302	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
303	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
305		352
306	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
307	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
318		365
319	while ($busy) {	366	while ($busy) {
320	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
321	}	368	}
322		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
323	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
324	} else {	378	} else {
325	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
326		380
327	$job->()	381	$job->()
…		…
346	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
347		401
348	$coro	402	$coro
349	}	403	}
350		404
351	sub write_runtime {	405	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		406
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
355	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.
356		411
357	my $value = $cf::RUNTIME + 90 + 10;	412	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		413
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
362	and return;	415	my ($cb, @args) = @_;
363		416
364	# always fsync - this file is important	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
365	aio_fsync $fh	418	# or die "socketpair: $!";
366	and return;	419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
367		421
		422	if (my $pid = fork) {
368	close $fh	423	close $fh2;
369	or return;
370		424
371	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
372	and return;	426	$res = Coro::Storable::thaw $res;
373		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
374	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
375	}	574	}
376		575
377	=back	576	=back
378		577
379	=cut	578	=cut
…		…
386	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")
387	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
388		587
389	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>
390	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
391	crossfire+).	590	Crossfire TRT).
392		591
393	=over 4	592	=over 4
394		593
395	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
396		595
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
560		759
561	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		764
566	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	766	my $pkg = shift @arg;
568		767
569	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
599	}	798	}
600		799
601	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
602	} else {	801	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	803	}
605		804
606	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
607	}	806	}
608		807
…		…
610	if (ref $_[0]) {	809	if (ref $_[0]) {
611	_object_attach @_;	810	_object_attach @_;
612	} else {	811	} else {
613	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
614	}	813	}
		814	_recalc_want;
615	};	815	};
616		816
617	# all those should be optimised	817	# all those should be optimised
618	sub cf::attachable::detach {	818	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
623	reattach ($obj);	823	reattach ($obj);
624	} else {	824	} else {
625	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
626	}	826	}
		827	_recalc_want;
627	};	828	};
628		829
629	sub cf::attachable::attached {	830	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
631		832
…		…
778	}	979	}
779	} else {	980	} else {
780	aio_unlink $filename;	981	aio_unlink $filename;
781	aio_unlink "$filename.pst";	982	aio_unlink "$filename.pst";
782	}	983	}
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	}	984	}
790	}	985	}
791		986
792	sub object_freezer_as_string {	987	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	988	my ($rdata, $objs) = @_;
…		…
799		994
800	sub object_thawer_load {	995	sub object_thawer_load {
801	my ($filename) = @_;	996	my ($filename) = @_;
802		997
803	my ($data, $av);	998	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		999
808	(aio_load $filename, $data) >= 0	1000	(aio_load $filename, $data) >= 0
809	or return;	1001	or return;
810		1002
811	unless (aio_stat "$filename.pst") {	1003	unless (aio_stat "$filename.pst") {
…		…
813	or return;	1005	or return;
814	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
815	}	1007	}
816		1008
817	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
819	return ($data, $av);	1011	return ($data, $av);
820	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
821		1019
822	#############################################################################	1020	#############################################################################
823	# command handling &c	1021	# command handling &c
824		1022
825	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1037	}
840		1038
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1040
843	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.
844		1046
845	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
846	called.	1048	called.
847		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
848	=cut	1061	=cut
849		1062
850	sub register_extcmd {	1063	sub register_extcmd {
851	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
852		1065
853	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
854	}	1073	}
855		1074
856	cf::player->attach (	1075	cf::player->attach (
857	on_command => sub {	1076	on_command => sub {
858	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
883		1102
884	cf::override;	1103	cf::override;
885	},	1104	},
886	);	1105	);
887		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
923	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1112	next unless -r $path;
925	eval {	1113
926	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;
927	1	1171	}
928	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
929	}	1177	};
930	}	1178	}
931		1179
932	#############################################################################	1180	#############################################################################
933		1181
		1182	=back
		1183
934	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
935		1185
936	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
937		1187
938	=cut	1188	=cut
…		…
950	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
951		1201
952	=cut	1202	=cut
953		1203
954	sub playerdir($) {	1204	sub playerdir($) {
955	cf::localdir	1205	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1207	}
961		1208
962	sub path($) {	1209	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1211
965	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
966	}	1213	}
967		1214
968	sub find_active($) {	1215	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1230	my $login = $_[0];
984		1231
985	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
986		1233
987	$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
988	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
989	or return;	1243	or return;
990	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
991	}	1245	}
992	}	1246	}
…		…
1029		1283
1030	=cut	1284	=cut
1031		1285
1032	sub quit_character {	1286	sub quit_character {
1033	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1034		1290
1035	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1036	$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
1037		1293
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1325	}
1050		1326
1051	=item cf::player::list_logins	1327	=item cf::player::list_logins
1052		1328
1053	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
1054	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1055		1331
1056	=cut	1332	=cut
1057		1333
1058	sub list_logins {	1334	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1336	or return [];
1061		1337
1062	my @logins;	1338	my @logins;
1063		1339
1064	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1099	}	1375	}
1100		1376
1101	\@paths	1377	\@paths
1102	}	1378	}
1103		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
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1105		1414
1106	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1107		1416
1108	=cut	1417	=cut
1109		1418
1110	sub ext_reply($$$%) {	1419	sub ext_reply($$%) {
1111	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1112		1421
1113	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1114
1115	$self->send ("ext " . cf::to_json \%msg);	1423	$self->send ("ext " . cf::to_json \%msg);
1116	}	1424	}
1117		1425
1118	package cf;	1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		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	$match
		1465	}
1119		1466
1120	=back	1467	=back
1121
1122		1468
1123	=head3 cf::map	1469	=head3 cf::map
1124		1470
1125	=over 4	1471	=over 4
1126		1472
…		…
1181	my ($self, $merge) = @_;	1527	my ($self, $merge) = @_;
1182		1528
1183	# we have to keep some variables in memory intact	1529	# we have to keep some variables in memory intact
1184	local $self->{path};	1530	local $self->{path};
1185	local $self->{load_path};	1531	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1532
1189	$self->SUPER::thawer_merge ($merge);	1533	$self->SUPER::thawer_merge ($merge);
1190	}	1534	}
1191		1535
1192	sub normalise {	1536	sub normalise {
…		…
1264		1608
1265	# the original (read-only) location	1609	# the original (read-only) location
1266	sub load_path {	1610	sub load_path {
1267	my ($self) = @_;	1611	my ($self) = @_;
1268		1612
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1613	"$MAPDIR/$self->{path}.map"
1270	}	1614	}
1271		1615
1272	# the temporary/swap location	1616	# the temporary/swap location
1273	sub save_path {	1617	sub save_path {
1274	my ($self) = @_;	1618	my ($self) = @_;
1275		1619
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1621	"$TMPDIR/$path.map"
1278	}	1622	}
1279		1623
1280	# the unique path, undef == no special unique path	1624	# the unique path, undef == no special unique path
1281	sub uniq_path {	1625	sub uniq_path {
1282	my ($self) = @_;	1626	my ($self) = @_;
1283		1627
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1629	"$UNIQUEDIR/$path"
1286	}	1630	}
1287		1631
1288	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1289	# all maps in C++...	1633	# all maps in C++...
1290	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1292		1636
1293	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1294	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1295	}	1639	}
1296		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
1297	sub unlink_save {	1649	sub unlink_save {
1298	my ($self) = @_;	1650	my ($self) = @_;
1299		1651
1300	utf8::encode (my $save = $self->save_path);	1652	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1654	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	}	1655	}
1309		1656
1310	sub load_header_from($) {	1657	sub load_header_from($) {
1311	my ($self, $path) = @_;	1658	my ($self, $path) = @_;
1312		1659
…		…
1362	$self->load_header_orig	1709	$self->load_header_orig
1363	or return;	1710	or return;
1364	$self->prepare_orig;	1711	$self->prepare_orig;
1365	}	1712	}
1366		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
1367	1	1720	1
1368	}	1721	}
1369		1722
1370	sub find;	1723	sub find;
1371	sub find {	1724	sub find {
…		…
1383	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1384		1737
1385	$map->load_header	1738	$map->load_header
1386	or return;	1739	or return;
1387		1740
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	1742	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	1743	#$cf::WAIT_FOR_TICK->wait;
1391	$map->reset;	1744	$map->reset;
1392	undef $guard;	1745	undef $guard;
1393	return find $path;	1746	return find $path;
…		…
1404	my ($self) = @_;	1757	my ($self) = @_;
1405		1758
1406	local $self->{deny_reset} = 1; # loading can take a long time	1759	local $self->{deny_reset} = 1; # loading can take a long time
1407		1760
1408	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1409	my $guard = cf::lock_acquire "map_load:$path";	1764	my $guard = cf::lock_acquire "map_load:$path";
1410		1765
1411	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1412		1767
1413	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1414		1769
1415	$self->alloc;	1770	$self->alloc;
1416		1771
1417	$self->pre_load;	1772	$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;	1773	Coro::cede;
1443	$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;
1444	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	1793	unless $self->difficulty;
1446	Coro::cede;	1794	Coro::cede;
		1795
		1796	unless ($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;
1447	$self->activate;	1803	$self->activate;
		1804	}
		1805
		1806	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	1807	}
1449		1808
1450	$self->post_load;	1809	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	1810	}
1454		1811
1455	sub customise_for {	1812	sub customise_for {
1456	my ($self, $ob) = @_;	1813	my ($self, $ob) = @_;
1457		1814
1458	return find "~" . $ob->name . "/" . $self->{path}	1815	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
1460		1820
1461	$self	1821	$self
1462	}	1822	}
1463		1823
1464	# find and load all maps in the 3x3 area around a map	1824	# find and load all maps in the 3x3 area around a map
…		…
1575		1935
1576	sub reset_at {	1936	sub reset_at {
1577	my ($self) = @_;	1937	my ($self) = @_;
1578		1938
1579	# TODO: safety, remove and allow resettable per-player maps	1939	# 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};	1940	return 1e99 if $self->{deny_reset};
1582		1941
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		1944
…		…
1596	my ($self) = @_;	1955	my ($self) = @_;
1597		1956
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		1958
1600	return if $self->players;	1959	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		1960
1603	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	}
1604		1972
1605	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
1606		1974
1607	$self->in_memory (cf::MAP_SWAPPED);
1608	$self->clear;	1975	$self->clear;
1609		1976
1610	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1611		1978
1612	$self->unlink_save;	1979	$self->unlink_save;
…		…
1631	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1632		1999
1633	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1634	}	2001	}
1635		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
1636	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1637		2040
1638	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2042	instantiated unique items. May block.
1640		2043
1641	=cut	2044	=cut
1642		2045
1643	sub unique_maps() {	2046	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2047	[
1645	or return;	2048	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2049	utf8::decode $_;
1651	next if /\.pst$/;	2050	/\.map$/
1652	next unless /^$PATH_SEP/o;	2051	? normalise $_
1653		2052	: ()
1654	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2054	]
1656
1657	\@paths
1658	}	2055	}
1659		2056
1660	package cf;	2057	package cf;
1661		2058
1662	=back	2059	=back
…		…
1708		2105
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2107
1711	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1716	}	2127	}
1717	}	2128	}
1718		2129
1719	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1720		2131
…		…
1768	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1769		2180
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2182
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1774		2185
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	2187	}
1777		2188
1778	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1780		2193
1781	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1782		2195
1783	unless ($map) {	2196	unless ($map) {
1784	# restore original map position	2197	# restore original map position
…		…
1802	$map->load;	2215	$map->load;
1803	$map->load_diag;	2216	$map->load_diag;
1804		2217
1805	return unless $self->contr->active;	2218	return unless $self->contr->active;
1806	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1807	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1808	}	2223	}
1809		2224
1810	cf::player->attach (
1811	on_logout => sub {
1812	my ($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)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1843		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
1844	=cut	2232	=cut
		2233
		2234	our $GOTOGEN;
1845		2235
1846	sub cf::object::player::goto {	2236	sub cf::object::player::goto {
1847	my ($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;
1848		2241
1849	$self->enter_link;	2242	$self->enter_link;
1850		2243
1851	(async {	2244	(async {
1852	my $map = eval {	2245	my $map = eval {
1853	my $map = cf::map::find $path;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1854	$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
1855	$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 $@;
1856	} or	2261	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1860	})->prio (1);	2267	})->prio (1);
1861	}	2268	}
1862		2269
1863	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1864		2271
…		…
1903		2310
1904	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1905		2312
1906	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1907	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2315	my $meta = "$RANDOMDIR/$md5.meta";
1909		2316
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2319	undef $fh;
1913	aio_rename "$meta~", $meta;	2320	aio_rename "$meta~", $meta;
…		…
1922		2329
1923	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1924		2331
1925	if ($exit->slaying eq "/!") {	2332	if ($exit->slaying eq "/!") {
1926	#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
1927	cf::sync_job { prepare_random_map $exit };	2336	cf::sync_job { prepare_random_map $exit };
1928	}	2337	}
1929		2338
1930	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;
1931	my $hp = $exit->stats->hp;	2340	my $hp = $exit->stats->hp;
…		…
1939	$self->goto ($slaying, $hp, $sp);	2348	$self->goto ($slaying, $hp, $sp);
1940		2349
1941	1;	2350	1;
1942	}) {	2351	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	2354	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2356
1948	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2358	$self->leave_link;
1950	}	2359	}
1951	})->prio (1);	2360	})->prio (1);
…		…
1964		2373
1965	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1967		2376
1968	utf8::encode $text;	2377	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2379	}
1971		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	}
1972		2431
1973	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1974		2433
1975	Queues a query to the client, calling the given callback with	2434	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>,	2435	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>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1978		2437
1979	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
1980	reliable at some point in the future.	2439	become reliable at some point in the future.
1981		2440
1982	=cut	2441	=cut
1983		2442
1984	sub cf::client::query {	2443	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	2452	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		2454
1996	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1998	}	2459	}
1999		2460
2000	cf::client->attach (	2461	cf::client->attach (
2001	on_reply => sub {	2462	on_reply => sub {
2002	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
2017	} else {	2478	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	2480	}
2020	}	2481	}
2021	},	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	},
2022	);	2501	);
2023		2502
2024	=item $client->async (\&cb)	2503	=item $client->async (\&cb)
2025		2504
2026	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073		2552
2074	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
2075		2554
2076	=pod	2555	=pod
2077		2556
2078	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
2079		2558
2080	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
2081	cf::object::player player	2560	cf::object::player player
2082	cf::player peaceful	2561	cf::player peaceful
2083	cf::map trigger	2562	cf::map trigger
…		…
2164	=back	2643	=back
2165		2644
2166	=cut	2645	=cut
2167		2646
2168	#############################################################################	2647	#############################################################################
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]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275
2276	#############################################################################
2277	# the server's init and main functions	2648	# the server's init and main functions
2278		2649
2279	sub load_resources {	2650	sub load_facedata($) {
2280	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"
2281	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;
2282	}	2741	}
2283		2742
2284	sub cfg_load {	2743	sub cfg_load {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	2745	or return;
2287		2746
2288	local $/;	2747	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
2290		2749
…		…
2298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2757	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2299	and die "WARNING: m(un)lockall failed: $!\n";	2758	and die "WARNING: m(un)lockall failed: $!\n";
2300	};	2759	};
2301	warn $@ if $@;	2760	warn $@ if $@;
2302	}	2761	}
2303	}
2304
2305	sub init {
2306	load_resources;
2307	}	2762	}
2308		2763
2309	sub main {	2764	sub main {
2310	# we must not ever block the main coroutine	2765	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	2766	local $Coro::idle = sub {
…		…
2314	Event::one_event;	2769	Event::one_event;
2315	})->prio (Coro::PRIO_MAX);	2770	})->prio (Coro::PRIO_MAX);
2316	};	2771	};
2317		2772
2318	cfg_load;	2773	cfg_load;
2319	db_load;	2774	db_init;
2320	load_extensions;	2775	load_extensions;
2321		2776
2322	$TICK_WATCHER->start;	2777	$TICK_WATCHER->start;
2323	Event::loop;	2778	Event::loop;
2324	}	2779	}
…		…
2339	},	2794	},
2340	);	2795	);
2341	}	2796	}
2342	}	2797	}
2343		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
2344	sub emergency_save() {	2837	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	2838	my $freeze_guard = cf::freeze_mainloop;
2346		2839
2347	warn "enter emergency perl save\n";	2840	warn "enter emergency perl save\n";
2348		2841
…		…
2363	my $map = $cf::MAP{$path} or next;	2856	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	2857	$map->valid or next;
2365	$map->save;	2858	$map->save;
2366	}	2859	}
2367	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 $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
2368	};	2865	};
2369		2866
2370	warn "leave emergency perl save\n";	2867	warn "leave emergency perl save\n";
2371	}	2868	}
2372		2869
		2870	sub post_cleanup {
		2871	my ($make_core) = @_;
		2872
		2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
		2876
2373	sub reload() {	2877	sub do_reload_perl() {
2374	# can/must only be called in main	2878	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	2880	warn "can only reload from main coroutine";
2377	return;	2881	return;
2378	}	2882	}
2379		2883
2380	warn "reloading...";	2884	warn "reloading...";
2381		2885
2382	warn "cancelling server ticker";	2886	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
2385	cf::emergency_save;	2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
2386		2892
2387	eval {	2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
2388	# 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
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392		2897
2393	warn "cancelling all WF_AUTOCANCEL watchers";	2898	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}	2901	}
2397		2902
2398	warn "flushing outstanding aio requests";	2903	warn "flushing outstanding aio requests";
2399	for (;;) {	2904	for (;;) {
		2905	BDB::flush;
2400	IO::AIO::flush;	2906	IO::AIO::flush;
2401	Coro::cede;	2907	Coro::cede;
2402	last unless IO::AIO::nreqs;	2908	last unless IO::AIO::nreqs || BDB::nreqs;
2403	warn "iterate...";	2909	warn "iterate...";
2404	}	2910	}
		2911
		2912	++$RELOAD;
2405		2913
2406	warn "cancelling all extension coros";	2914	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	2915	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	2916	%EXT_CORO = ();
2409		2917
2410	warn "removing commands";	2918	warn "removing commands";
2411	%COMMAND = ();	2919	%COMMAND = ();
2412		2920
2413	warn "removing ext commands";	2921	warn "removing ext/exti commands";
2414	%EXTCMD = ();	2922	%EXTCMD = ();
		2923	%EXTICMD = ();
2415		2924
2416	warn "unloading/nuking all extensions";	2925	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {	2926	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";	2927	warn "... unloading $pkg";
2419		2928
…		…
2449	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2450	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);
2451		2960
2452	warn "unloading cf.pm \"a bit\"";	2961	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2454		2964
2455	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2456	# and global variables created in xs	2966	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2458		2968
…		…
2462	require cf;	2972	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2464		2974
2465	warn "loading config and database again";	2975	warn "loading config and database again";
2466	cf::cfg_load;	2976	cf::cfg_load;
2467	cf::db_load;
2468		2977
2469	warn "loading extensions";	2978	warn "loading extensions";
2470	cf::load_extensions;	2979	cf::load_extensions;
2471		2980
2472	warn "reattaching attachments to objects/players";	2981	warn "reattaching attachments to objects/players";
2473	_global_reattach;	2982	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	2983	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
2476		2987
2477	warn "loading reloadable resources";	2988	warn "leaving sync_job";
2478	load_resources;
2479		2989
2480	warn "restarting server ticker";	2990	1
2481		2991	} or do {
2482	$TICK_WATCHER->start;
2483	};
2484
2485	if ($@) {
2486	warn $@;	2992	warn $@;
2487	warn "error while reloading, exiting.";	2993	warn "error while reloading, exiting.";
2488	exit 1;	2994	exit 1;
2489	}	2995	};
2490		2996
2491	warn "reloaded";	2997	warn "reloaded";
2492	};	2998	};
2493		2999
2494	our $RELOAD_WATCHER; # used only during reload	3000	our $RELOAD_WATCHER; # used only during reload
2495		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 $RELOAD_WATCHER;
		3013	},
		3014	);
		3015	}
		3016
2496	register_command "reload" => sub {	3017	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2498		3019
2499	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3021	$who->message ("reloading server.");
2501		3022	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	}	3023	}
2515	};	3024	};
2516		3025
2517	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2518		3027
2519	my $bug_warning = 0;	3028	my $bug_warning = 0;
2520		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;
2521	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2522	reentrant => 0,	3054	reentrant => 0,
2523	parked => 1,	3055	parked => 1,
2524	prio => 0,	3056	prio => 0,
2525	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
…		…
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;	3062	unless ++$bug_warning > 10;
2531	return;	3063	return;
2532	}	3064	}
2533		3065
2534	$NOW = Event::time;	3066	$NOW = $tick_start = Event::time;
2535		3067
2536	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
2537	$RUNTIME += $TICK;	3093	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2539		3095
2540	$WAIT_FOR_TICK->broadcast;	3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
2542		3098	Coro::async_pool {
2543	Event::sweep;	3099	write_runtime
2544	Coro::cede_notself;	3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
2545		3102	}
		3103
2546	# my $AFTER = Event::time;	3104	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#	3105	# warn $AFTER - $NOW;#d#
2548		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
2549	# 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
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2551		3118
2552	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2553	$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
2554	},	3128	},
2555	);	3129	);
2556		3130
		3131	{
		3132	BDB::max_poll_time $TICK * 0.1;
		3133	$BDB_POLL_WATCHER = Event->io (
		3134	reentrant => 0,
		3135	fd => BDB::poll_fileno,
		3136	poll => 'r',
		3137	prio => 0,
		3138	data => WF_AUTOCANCEL,
		3139	cb => \&BDB::poll_cb,
		3140	);
		3141	BDB::min_parallel 8;
		3142
		3143	BDB::set_sync_prepare {
		3144	my $status;
		3145	my $current = $Coro::current;
		3146	(
		3147	sub {
		3148	$status = $!;
		3149	$current->ready; undef $current;
		3150	},
		3151	sub {
		3152	Coro::schedule while defined $current;
		3153	$! = $status;
		3154	},
		3155	)
		3156	};
		3157
		3158	unless ($DB_ENV) {
		3159	$DB_ENV = BDB::db_env_create;
		3160
		3161	cf::sync_job {
		3162	eval {
		3163	BDB::db_env_open
		3164	$DB_ENV,
		3165	$BDBDIR,
		3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3168	0666;
		3169
		3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3171
		3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
		3177	};
		3178	}
		3179	}
		3180
		3181	{
		3182	IO::AIO::min_parallel 8;
		3183
		3184	undef $Coro::AIO::WATCHER;
2557	IO::AIO::max_poll_time $TICK * 0.1;	3185	IO::AIO::max_poll_time $TICK * 0.1;
2558
2559	undef $Coro::AIO::WATCHER;
2560	$AIO_POLL_WATCHER = Event->io (	3186	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,	3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
2562	fd => IO::AIO::poll_fileno,	3189	fd => IO::AIO::poll_fileno,
2563	poll => 'r',	3190	poll => 'r',
2564	prio => 6,	3191	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,	3192	cb => \&IO::AIO::poll_cb,
2567	);	3193	);
		3194	}
2568		3195
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	3196	my $_log_backtrace;
2570	reentrant => 0,	3197
2571	data => WF_AUTOCANCEL,	3198	sub _log_backtrace {
2572	after => 1,	3199	my ($msg, @addr) = @_;
2573	interval => 10,	3200
2574	prio => 6, # keep it lowest so it acts like a watchdog	3201	$msg =~ s/\n//;
2575	cb => Coro::unblock_sub {	3202
2576	write_runtime	3203	# limit the # of concurrent backtraces
2577	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";
2578	},	3231	}
2579	);	3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
2580		3236
2581	END { cf::emergency_save }	3237	END { cf::emergency_save }
2582		3238
2583	1	3239	1
2584		3240

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