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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
38		51
39	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
43		57
		58	our $RELOAD; # number of reloads so far
44	our @EVENT;	59	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		60
47	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	77	our $NEXT_TICK;
52	our $NOW;	78	our $NOW;
		79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
53		83
54	our %CFG;	84	our %CFG;
55		85
56	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	87	our $RUNTIME;
58		88
59	our %PLAYER; # all users	89	our %PLAYER; # all users
60	our %MAP; # all maps	90	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		92
67	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
70	binmode STDOUT;	100	binmode STDOUT;
71	binmode STDERR;	101	binmode STDERR;
72		102
73	# read virtual server time, if available	103	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
78	}	108	}
79		109
80	mkdir cf::localdir;	110	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		112
86	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
87		114
88	sub cf::map::normalise;	115	sub cf::map::normalise;
89		116
…		…
100	=item $cf::RUNTIME	127	=item $cf::RUNTIME
101		128
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	130	every server tick.
104		131
105	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		135
107	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
109		140
110	=item $cf::NOW	141	=item $cf::NOW
111		142
112	The time of the last (current) server tick.	143	The time of the last (current) server tick.
113		144
114	=item $cf::TICK	145	=item $cf::TICK
115		146
116	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
117		158
118	=item %cf::CFG	159	=item %cf::CFG
119		160
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	162	from wherever your confdir points to.
122		163
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	164	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		165
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	167	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.
129		169
130	=back	170	=back
131		171
132	=cut	172	=cut
133		173
134	BEGIN {	174	BEGIN {
135	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	176	my $msg = join "", @_;
137	utf8::encode $msg;
138		177
139	$msg .= "\n"	178	$msg .= "\n"
140	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
141		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
142	LOG llevError, $msg;	184	LOG llevError, $msg;
143	};	185	};
144	}	186	}
145		187
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		195
153	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	197	# within the Safe compartment.
155	for my $pkg (qw(	198	for my $pkg (qw(
156	cf::global cf::attachable	199	cf::global cf::attachable
…		…
164	}	207	}
165		208
166	$Event::DIED = sub {	209	$Event::DIED = sub {
167	warn "error in event callback: @_";	210	warn "error in event callback: @_";
168	};	211	};
		212
		213	#############################################################################
169		214
170	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
171		216
172	=over 4	217	=over 4
173		218
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	238	$d
194	} || "[unable to dump $_[0]: '$@']";	239	} || "[unable to dump $_[0]: '$@']";
195	}	240	}
196		241
197	use JSON::Syck (); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
198		243
199	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
200		245
201	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
202		247
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
211		249
212	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
213		251
214	=cut	252	=cut
215		253
216	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
218	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
219	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
220		258
221	=item cf::lock_wait $string	259	=item cf::lock_wait $string
222		260
223	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
224		262
…		…
230	returned.	268	returned.
231		269
232	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
234		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
235	=cut	277	=cut
236		278
237	our %LOCK;	279	our %LOCK;
238		280
239	sub lock_wait($) {	281	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
260	}	302	}
261	}	303	}
262		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
263	sub freeze_mainloop {	311	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
265		313
266	my $guard = Coro::guard {	314	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	315	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	316	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
272	$guard	318	$guard
273	}	319	}
274		320
275	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
282		328
283	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
284		330
285	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
286		332
287	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
290		337
291	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
294	fast or be very important.	341	fast or be very important.
…		…
297		344
298	sub sync_job(&) {	345	sub sync_job(&) {
299	my ($job) = @_;	346	my ($job) = @_;
300		347
301	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
302	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
304		353
305	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
317		366
318	while ($busy) {	367	while ($busy) {
319	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
320	}	369	}
321		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
322	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
323	} else {	379	} else {
324	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
325		381
326	$job->()	382	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
346		402
347	$coro	403	$coro
348	}	404	}
349		405
350	sub write_runtime {	406	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		407
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
354	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
355		412
356	my $value = $cf::RUNTIME + 90 + 10;	413	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		414
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	415	sub fork_call(&@) {
361	and return;	416	my ($cb, @args) = @_;
362		417
363	aio_fsync $fh	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
364	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
365		422
		423	if (my $pid = fork) {
366	close $fh	424	close $fh2;
367	or return;
368		425
369	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
370	and return;	427	$res = Coro::Storable::thaw $res;
371		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
372	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	575	}
374		576
375	=back	577	=back
376		578
377	=cut	579	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
386		588
387	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	591	Crossfire TRT).
390		592
391	=over 4	593	=over 4
392		594
393	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
394		596
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
558		760
559	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		765
564	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	767	my $pkg = shift @arg;
566		768
567	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
597	}	799	}
598		800
599	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
600	} else {	802	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	804	}
603		805
604	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
605	}	807	}
606		808
…		…
608	if (ref $_[0]) {	810	if (ref $_[0]) {
609	_object_attach @_;	811	_object_attach @_;
610	} else {	812	} else {
611	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
612	}	814	}
		815	_recalc_want;
613	};	816	};
614		817
615	# all those should be optimised	818	# all those should be optimised
616	sub cf::attachable::detach {	819	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
621	reattach ($obj);	824	reattach ($obj);
622	} else {	825	} else {
623	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
624	}	827	}
		828	_recalc_want;
625	};	829	};
626		830
627	sub cf::attachable::attached {	831	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
629		833
…		…
752	$filename, length $$rdata, scalar @$objs;	956	$filename, length $$rdata, scalar @$objs;
753		957
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	958	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	959	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	960	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	962	close $fh;
759		963
760	if (@$objs) {	964	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	965	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	966	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	967	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	968	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	969	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	970	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	971	aio_rename "$filename.pst~", "$filename.pst";
768	}	972	}
769	} else {	973	} else {
770	aio_unlink "$filename.pst";	974	aio_unlink "$filename.pst";
…		…
802	or return;	1006	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1008	}
805		1009
806	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	1012	return ($data, $av);
809	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
810		1020
811	#############################################################################	1021	#############################################################################
812	# command handling &c	1022	# command handling &c
813		1023
814	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1038	}
829		1039
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1041
832	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
833		1047
834	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
835	called.	1049	called.
836		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
837	=cut	1062	=cut
838		1063
839	sub register_extcmd {	1064	sub register_extcmd {
840	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
841		1066
842	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
843	}	1074	}
844		1075
845	cf::player->attach (	1076	cf::player->attach (
846	on_command => sub {	1077	on_command => sub {
847	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
872		1103
873	cf::override;	1104	cf::override;
874	},	1105	},
875	);	1106	);
876		1107
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
912	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1113	next unless -r $path;
914	eval {	1114
915	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
916	1	1172	}
917	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
918	}	1178	};
919	}	1179	}
920		1180
921	#############################################################################	1181	#############################################################################
922		1182
		1183	=back
		1184
923	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
924		1186
925	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
926		1188
927	=cut	1189	=cut
…		…
939	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
940		1202
941	=cut	1203	=cut
942		1204
943	sub playerdir($) {	1205	sub playerdir($) {
944	cf::localdir	1206	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1208	}
950		1209
951	sub path($) {	1210	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1212
954	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
955	}	1214	}
956		1215
957	sub find_active($) {	1216	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1231	my $login = $_[0];
973		1232
974	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
975		1234
976	$cf::PLAYER{$_[0]} || do {	1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
977	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
978	or return;	1244	or return;
979	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
980	}	1246	}
981	}	1247	}
…		…
1018		1284
1019	=cut	1285	=cut
1020		1286
1021	sub quit_character {	1287	sub quit_character {
1022	my ($pl) = @_;	1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
1023		1291
1024	$pl->{deny_save} = 1;	1292	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1294
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1300	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1301	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1302	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1303	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
1037	IO::AIO::aio_rmtree $temp;	1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
1038	}	1326	}
1039		1327
1040	=item cf::player::list_logins	1328	=item cf::player::list_logins
1041		1329
1042	Returns am arrayref of all valid playernames in the system, can take a	1330	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1044		1332
1045	=cut	1333	=cut
1046		1334
1047	sub list_logins {	1335	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1337	or return [];
1050		1338
1051	my @logins;	1339	my @logins;
1052		1340
1053	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1070	=cut	1358	=cut
1071		1359
1072	sub maps($) {	1360	sub maps($) {
1073	my ($pl) = @_;	1361	my ($pl) = @_;
1074		1362
		1363	$pl = ref $pl ? $pl->ob->name : $pl;
		1364
1075	my $files = aio_readdir playerdir $pl	1365	my $files = aio_readdir playerdir $pl
1076	or return;	1366	or return;
1077		1367
1078	my @paths;	1368	my @paths;
1079		1369
1080	for (@$files) {	1370	for (@$files) {
1081	utf8::decode $_;	1371	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1372	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1373	next unless /^$PATH_SEP/o;
1084		1374
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1375	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1376	}
1087		1377
1088	\@paths	1378	\@paths
1089	}	1379	}
1090		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1092		1415
1093	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1094		1417
1095	=cut	1418	=cut
1096		1419
1097	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1099		1422
1100	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1103	}	1425	}
1104		1426
1105	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
		1454	my ($path) = @_;
		1455
		1456	my ($match, $specificity);
		1457
		1458	for my $region (list) {
		1459	if ($region->match && $path =~ $region->match) {
		1460	($match, $specificity) = ($region, $region->specificity)
		1461	if $region->specificity > $specificity;
		1462	}
		1463	}
		1464
		1465	$match
		1466	}
1106		1467
1107	=back	1468	=back
1108
1109		1469
1110	=head3 cf::map	1470	=head3 cf::map
1111		1471
1112	=over 4	1472	=over 4
1113		1473
…		…
1168	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1169		1529
1170	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1171	local $self->{path};	1531	local $self->{path};
1172	local $self->{load_path};	1532	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1533
1176	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1177	}	1535	}
1178		1536
1179	sub normalise {	1537	sub normalise {
…		…
1251		1609
1252	# the original (read-only) location	1610	# the original (read-only) location
1253	sub load_path {	1611	sub load_path {
1254	my ($self) = @_;	1612	my ($self) = @_;
1255		1613
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1257	}	1615	}
1258		1616
1259	# the temporary/swap location	1617	# the temporary/swap location
1260	sub save_path {	1618	sub save_path {
1261	my ($self) = @_;	1619	my ($self) = @_;
1262		1620
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1265	}	1623	}
1266		1624
1267	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1268	sub uniq_path {	1626	sub uniq_path {
1269	my ($self) = @_;	1627	my ($self) = @_;
1270		1628
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1273	}	1631	}
1274		1632
1275	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1276	# all maps in C++...	1634	# all maps in C++...
1277	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1279		1637
1280	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1282	}	1640	}
1283		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1284	sub unlink_save {	1650	sub unlink_save {
1285	my ($self) = @_;	1651	my ($self) = @_;
1286		1652
1287	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1657
1292	sub load_header_from($) {	1658	sub load_header_from($) {
1293	my ($self, $path) = @_;	1659	my ($self, $path) = @_;
1294		1660
1295	utf8::encode $path;	1661	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1662	#aio_open $path, O_RDONLY, 0
1297	or return;	1663	# or return;
1298		1664
1299	$self->_load_header ($path)	1665	$self->_load_header ($path)
1300	or return;	1666	or return;
1301		1667
1302	$self->{load_path} = $path;	1668	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1710	$self->load_header_orig
1345	or return;	1711	or return;
1346	$self->prepare_orig;	1712	$self->prepare_orig;
1347	}	1713	}
1348		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
		1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
		1720
1349	1	1721	1
1350	}	1722	}
1351		1723
1352	sub find;	1724	sub find;
1353	sub find {	1725	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1366		1738
1367	$map->load_header	1739	$map->load_header
1368	or return;	1740	or return;
1369		1741
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1745	$map->reset;
1374	undef $guard;	1746	undef $guard;
1375	return find $path;	1747	return find $path;
…		…
1386	my ($self) = @_;	1758	my ($self) = @_;
1387		1759
1388	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1389		1761
1390	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1392		1766
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1768
1395	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1396		1770
1397	$self->alloc;	1771	$self->alloc;
1398		1772
1399	$self->pre_load;	1773	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1774	Coro::cede;
1425	$self->set_darkness_map;	1775
		1776	$self->_load_objects ($self->{load_path}, 1)
		1777	or return;
		1778
		1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1780	if delete $self->{load_original};
		1781
		1782	if (my $uniq = $self->uniq_path) {
		1783	utf8::encode $uniq;
		1784	if (aio_open $uniq, O_RDONLY, 0) {
		1785	$self->clear_unique_items;
		1786	$self->_load_objects ($uniq, 0);
		1787	}
		1788	}
		1789
		1790	Coro::cede;
		1791	# now do the right thing for maps
		1792	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1794	unless $self->difficulty;
1428	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1429	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1808	}
1431		1809
1432	$self->post_load;	1810	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1811	}
1436		1812
1437	sub customise_for {	1813	sub customise_for {
1438	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1439		1815
1440	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1442		1821
1443	$self	1822	$self
1444	}	1823	}
1445		1824
1446	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1557		1936
1558	sub reset_at {	1937	sub reset_at {
1559	my ($self) = @_;	1938	my ($self) = @_;
1560		1939
1561	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1564		1942
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1945
…		…
1578	my ($self) = @_;	1956	my ($self) = @_;
1579		1957
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		1959
1582	return if $self->players;	1960	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		1961
1585	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1586		1973
1587	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
1588		1975
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	1976	$self->clear;
1591		1977
1592	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1593		1979
1594	$self->unlink_save;	1980	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1614		2000
1615	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1616	}	2002	}
1617		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1618	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1619		2041
1620	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2043	instantiated unique items. May block.
1622		2044
1623	=cut	2045	=cut
1624		2046
1625	sub unique_maps() {	2047	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1627	or return;	2049	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2050	utf8::decode $_;
1633	next if /\.pst$/;	2051	/\.map$/
1634	next unless /^$PATH_SEP/o;	2052	? normalise $_
1635		2053	: ()
1636	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2055	]
1638
1639	\@paths
1640	}	2056	}
1641		2057
1642	package cf;	2058	package cf;
1643		2059
1644	=back	2060	=back
…		…
1690		2106
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2108
1693	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1695	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1698	}	2128	}
1699	}	2129	}
1700		2130
1701	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1702		2132
…		…
1750	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1751		2181
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2183
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1756		2186
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2188	}
1759		2189
1760	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1762		2194
1763	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1764		2196
1765	unless ($map) {	2197	unless ($map) {
1766	# restore original map position	2198	# restore original map position
…		…
1784	$map->load;	2216	$map->load;
1785	$map->load_diag;	2217	$map->load_diag;
1786		2218
1787	return unless $self->contr->active;	2219	return unless $self->contr->active;
1788	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1790	}	2224	}
1791		2225
1792	cf::player->attach (
1793	on_logout => sub {
1794	my ($pl) = @_;
1795
1796	# abort map switching before logout
1797	if ($pl->ob->{_link_pos}) {
1798	cf::sync_job {
1799	$pl->ob->leave_link
1800	};
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1825		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1826	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1827		2236
1828	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2242
1831	$self->enter_link;	2243	$self->enter_link;
1832		2244
1833	(async {	2245	(async {
1834	my $map = eval {	2246	my $map = eval {
1835	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
		2255
1837	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2262	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1842	})->prio (1);	2268	})->prio (1);
1843	}	2269	}
1844		2270
1845	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1846		2272
…		…
1885		2311
1886	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1887		2313
1888	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1891		2317
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2320	undef $fh;
1895	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1904		2330
1905	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1906		2332
1907	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1910	}	2338	}
1911		2339
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1921	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1922		2350
1923	1;	2351	1;
1924	}) {	2352	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2357
1930	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2359	$self->leave_link;
1932	}	2360	}
1933	})->prio (1);	2361	})->prio (1);
…		…
1946		2374
1947	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1949		2377
1950	utf8::encode $text;	2378	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2380	}
1953		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1954		2432
1955	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1956		2434
1957	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2438
1961	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2440	become reliable at some point in the future.
1963		2441
1964	=cut	2442	=cut
1965		2443
1966	sub cf::client::query {	2444	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2453	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2455
1978	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1980	}	2460	}
1981		2461
1982	cf::client->attach (	2462	cf::client->attach (
1983	on_reply => sub {	2463	on_reply => sub {
1984	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
1987	# get handled first	2467	# get handled first
1988	my $queue = delete $ns->{query_queue}	2468	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2469	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2470
1991	(shift @$queue)->[1]->($msg);	2471	(shift @$queue)->[1]->($msg);
		2472	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2473
1993	push @{ $ns->{query_queue} }, @$queue;	2474	push @{ $ns->{query_queue} }, @$queue;
1994		2475
1995	if (@{ $ns->{query_queue} } == @$queue) {	2476	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2477	if (@$queue) {
…		…
1998	} else {	2479	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2481	}
2001	}	2482	}
2002	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
2003	);	2502	);
2004		2503
2005	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2006		2505
2007	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2054		2553
2055	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2056		2555
2057	=pod	2556	=pod
2058		2557
2059	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2060		2559
2061	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2062	cf::object::player player	2561	cf::object::player player
2063	cf::player peaceful	2562	cf::player peaceful
2064	cf::map trigger	2563	cf::map trigger
…		…
2145	=back	2644	=back
2146		2645
2147	=cut	2646	=cut
2148		2647
2149	#############################################################################	2648	#############################################################################
		2649	# the server's init and main functions
2150		2650
2151	=head2 EXTENSION DATABASE SUPPORT	2651	sub load_facedata($) {
		2652	my ($path) = @_;
2152		2653
2153	Crossfire maintains a very simple database for extension use. It can	2654	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2655
2157	The parameter C<$family> should best start with the name of the extension	2656	my $facedata;
2158	using it, it should be unique.	2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
2159		2659
2160	=over 4	2660	$facedata = Coro::Storable::thaw $facedata;
2161		2661
2162	=item $hashref = cf::db_get $family	2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2664
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key
2169
2170	Returns a single value from the database
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	2665	{
		2666	my $faces = $facedata->{faceinfo};
2200		2667
2201	my $pid;	2668	while (my ($face, $info) = each %$faces) {
2202		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	sub db_save() {	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2204	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2205	if (0 == ($pid = fork)) {	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2206	$DB->{_meta}{version} = 1;	2673	Coro::cede;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}
2212
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2674	}
2254	);
2255	}
2256		2675
2257	#############################################################################	2676	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
		2737	}
2259		2738
2260	sub cfg_load {	2739	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2741	or return;
2263		2742
2264	local $/;	2743	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2266		2745
…		…
2286	Event::one_event;	2765	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	2766	})->prio (Coro::PRIO_MAX);
2288	};	2767	};
2289		2768
2290	cfg_load;	2769	cfg_load;
2291	db_load;	2770	db_init;
2292	load_extensions;	2771	load_extensions;
2293		2772
2294	$TICK_WATCHER->start;	2773	$TICK_WATCHER->start;
2295	Event::loop;	2774	Event::loop;
2296	}	2775	}
…		…
2311	},	2790	},
2312	);	2791	);
2313	}	2792	}
2314	}	2793	}
2315		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2316	sub emergency_save() {	2833	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2318		2835
2319	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2320		2837
…		…
2335	my $map = $cf::MAP{$path} or next;	2852	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	2853	$map->valid or next;
2337	$map->save;	2854	$map->save;
2338	}	2855	}
2339	warn "end emergency map save\n";	2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
2340	};	2861	};
2341		2862
2342	warn "leave emergency perl save\n";	2863	warn "leave emergency perl save\n";
2343	}	2864	}
2344		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2345	sub reload() {	2873	sub do_reload_perl() {
2346	# can/must only be called in main	2874	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2349	return;	2877	return;
2350	}	2878	}
2351		2879
2352	warn "reloading...";	2880	warn "reloading...";
2353		2881
2354	warn "cancelling server ticker";	2882	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2358		2888
2359	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2360	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		2893
2365	warn "cancelling all WF_AUTOCANCEL watchers";	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	2897	}
2369		2898
2370	warn "flushing outstanding aio requests";	2899	warn "flushing outstanding aio requests";
2371	for (;;) {	2900	for (;;) {
		2901	BDB::flush;
2372	IO::AIO::flush;	2902	IO::AIO::flush;
2373	Coro::cede;	2903	Coro::cede;
2374	last unless IO::AIO::nreqs;	2904	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	2905	warn "iterate...";
2376	}	2906	}
		2907
		2908	++$RELOAD;
2377		2909
2378	warn "cancelling all extension coros";	2910	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	2912	%EXT_CORO = ();
2381		2913
2382	warn "removing commands";	2914	warn "removing commands";
2383	%COMMAND = ();	2915	%COMMAND = ();
2384		2916
2385	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2386	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2387		2920
2388	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2391		2924
…		…
2421	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		2956
2424	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2426		2960
2427	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2428	# and global variables created in xs	2962	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2430		2964
…		…
2434	require cf;	2968	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		2970
2437	warn "loading config and database again";	2971	warn "loading config and database again";
2438	cf::cfg_load;	2972	cf::cfg_load;
2439	cf::db_load;
2440		2973
2441	warn "loading extensions";	2974	warn "loading extensions";
2442	cf::load_extensions;	2975	cf::load_extensions;
2443		2976
2444	warn "reattaching attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2445	_global_reattach;	2978	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2448		2983
2449	warn "restarting server ticker";	2984	warn "leaving sync_job";
2450		2985
2451	$TICK_WATCHER->start;	2986	1
2452	};	2987	} or do {
2453
2454	if ($@) {
2455	warn $@;	2988	warn $@;
2456	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2457	exit 1;	2990	exit 1;
2458	}	2991	};
2459		2992
2460	warn "reloaded";	2993	warn "reloaded";
2461	};	2994	};
2462		2995
2463	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2464		2997
		2998	sub reload_perl() {
		2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
		3001
		3002	$RELOAD_WATCHER ||= Event->timer (
		3003	reentrant => 0,
		3004	after => 0,
		3005	data => WF_AUTOCANCEL,
		3006	cb => sub {
		3007	do_reload_perl;
		3008	undef $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2465	register_command "reload" => sub {	3013	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2467		3015
2468	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2470		3018	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	3019	}
2484	};	3020	};
2485		3021
2486	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2487		3023
2488	my $bug_warning = 0;	3024	my $bug_warning = 0;
2489		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	3050	reentrant => 0,
2492	parked => 1,	3051	parked => 1,
2493	prio => 0,	3052	prio => 0,
2494	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2500	return;	3059	return;
2501	}	3060	}
2502		3061
2503	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2504		3063
2505	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
		3088
2506	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2508		3091
2509	$WAIT_FOR_TICK->broadcast;	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3094	Coro::async_pool {
2512	Event::sweep;	3095	write_runtime
2513	Coro::cede_notself;	3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
2514		3098	}
		3099
2515	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2517		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2518	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		3114
2521	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2523	},	3124	},
2524	);	3125	);
2525		3126
		3127	{
		3128	BDB::max_poll_time $TICK * 0.1;
		3129	$BDB_POLL_WATCHER = Event->io (
		3130	reentrant => 0,
		3131	fd => BDB::poll_fileno,
		3132	poll => 'r',
		3133	prio => 0,
		3134	data => WF_AUTOCANCEL,
		3135	cb => \&BDB::poll_cb,
		3136	);
		3137	BDB::min_parallel 8;
		3138
		3139	BDB::set_sync_prepare {
		3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
		3173	};
		3174	}
		3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3181	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3182	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3185	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3186	poll => 'r',
2533	prio => 6,	3187	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2536	);	3189	);
		3190	}
2537		3191
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3192	my $_log_backtrace;
2539	reentrant => 0,	3193
2540	data => WF_AUTOCANCEL,	3194	sub _log_backtrace {
2541	after => 1,	3195	my ($msg, @addr) = @_;
2542	interval => 10,	3196
2543	prio => 6, # keep it lowest so it acts like a watchdog	3197	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3198
2545	write_runtime	3199	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3227	}
2548	);	3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2549		3232
2550	END { cf::emergency_save }	3233	END { cf::emergency_save }
2551		3234
2552	1	3235	1
2553		3236

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