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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.203 by root, Thu Feb 1 19:40:42 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";
…		…
776	}	980	}
777	} else {	981	} else {
778	aio_unlink $filename;	982	aio_unlink $filename;
779	aio_unlink "$filename.pst";	983	aio_unlink "$filename.pst";
780	}	984	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	985	}
788	}	986	}
789		987
790	sub object_freezer_as_string {	988	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	989	my ($rdata, $objs) = @_;
…		…
797		995
798	sub object_thawer_load {	996	sub object_thawer_load {
799	my ($filename) = @_;	997	my ($filename) = @_;
800		998
801	my ($data, $av);	999	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1000
806	(aio_load $filename, $data) >= 0	1001	(aio_load $filename, $data) >= 0
807	or return;	1002	or return;
808		1003
809	unless (aio_stat "$filename.pst") {	1004	unless (aio_stat "$filename.pst") {
…		…
811	or return;	1006	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
813	}	1008	}
814		1009
815	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	1012	return ($data, $av);
818	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
819		1020
820	#############################################################################	1021	#############################################################################
821	# command handling &c	1022	# command handling &c
822		1023
823	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1038	}
838		1039
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1041
841	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.
842		1047
843	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
844	called.	1049	called.
845		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
846	=cut	1062	=cut
847		1063
848	sub register_extcmd {	1064	sub register_extcmd {
849	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
850		1066
851	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
852	}	1074	}
853		1075
854	cf::player->attach (	1076	cf::player->attach (
855	on_command => sub {	1077	on_command => sub {
856	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
881		1103
882	cf::override;	1104	cf::override;
883	},	1105	},
884	);	1106	);
885		1107
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
921	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1113	next unless -r $path;
923	eval {	1114
924	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;
925	1	1172	}
926	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
927	}	1178	};
928	}	1179	}
929		1180
930	#############################################################################	1181	#############################################################################
931		1182
		1183	=back
		1184
932	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
933		1186
934	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
935		1188
936	=cut	1189	=cut
…		…
948	Returns the given player object, loading it if necessary (might block).	1201	Returns the given player object, loading it if necessary (might block).
949		1202
950	=cut	1203	=cut
951		1204
952	sub playerdir($) {	1205	sub playerdir($) {
953	cf::localdir	1206	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1208	}
959		1209
960	sub path($) {	1210	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1212
963	(playerdir $login) . "/$login.pl"	1213	(playerdir $login) . "/playerdata"
964	}	1214	}
965		1215
966	sub find_active($) {	1216	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1217	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1218	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1231	my $login = $_[0];
982		1232
983	my $guard = cf::lock_acquire "user_find:$login";	1233	my $guard = cf::lock_acquire "user_find:$login";
984		1234
985	$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
986	my $pl = load_pl path $login	1243	my $pl = load_pl path $login
987	or return;	1244	or return;
988	$cf::PLAYER{$login} = $pl	1245	$cf::PLAYER{$login} = $pl
989	}	1246	}
990	}	1247	}
…		…
1027		1284
1028	=cut	1285	=cut
1029		1286
1030	sub quit_character {	1287	sub quit_character {
1031	my ($pl) = @_;	1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
1032		1291
1033	$pl->{deny_save} = 1;	1292	$pl->{deny_save} = 1;
1034	$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
1035		1294
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1300	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1301	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1302	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1303	delete $cf::PLAYER{$pl->ob->name};
1045	$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
1046	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;
1047	}	1326	}
1048		1327
1049	=item cf::player::list_logins	1328	=item cf::player::list_logins
1050		1329
1051	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
1052	while and may block, so not sync_job-capable, ever.	1331	while and may block, so not sync_job-capable, ever.
1053		1332
1054	=cut	1333	=cut
1055		1334
1056	sub list_logins {	1335	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1336	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1337	or return [];
1059		1338
1060	my @logins;	1339	my @logins;
1061		1340
1062	for my $login (@$dirs) {	1341	for my $login (@$dirs) {
…		…
1097	}	1376	}
1098		1377
1099	\@paths	1378	\@paths
1100	}	1379	}
1101		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
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1103		1415
1104	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1105		1417
1106	=cut	1418	=cut
1107		1419
1108	sub ext_reply($$$%) {	1420	sub ext_reply($$%) {
1109	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1110		1422
1111	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1112
1113	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1114	}	1425	}
1115		1426
1116	package cf;	1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		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	$match
		1466	}
1117		1467
1118	=back	1468	=back
1119
1120		1469
1121	=head3 cf::map	1470	=head3 cf::map
1122		1471
1123	=over 4	1472	=over 4
1124		1473
…		…
1179	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1180		1529
1181	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1182	local $self->{path};	1531	local $self->{path};
1183	local $self->{load_path};	1532	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1533
1187	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1188	}	1535	}
1189		1536
1190	sub normalise {	1537	sub normalise {
…		…
1262		1609
1263	# the original (read-only) location	1610	# the original (read-only) location
1264	sub load_path {	1611	sub load_path {
1265	my ($self) = @_;	1612	my ($self) = @_;
1266		1613
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1614	"$MAPDIR/$self->{path}.map"
1268	}	1615	}
1269		1616
1270	# the temporary/swap location	1617	# the temporary/swap location
1271	sub save_path {	1618	sub save_path {
1272	my ($self) = @_;	1619	my ($self) = @_;
1273		1620
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1622	"$TMPDIR/$path.map"
1276	}	1623	}
1277		1624
1278	# the unique path, undef == no special unique path	1625	# the unique path, undef == no special unique path
1279	sub uniq_path {	1626	sub uniq_path {
1280	my ($self) = @_;	1627	my ($self) = @_;
1281		1628
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1630	"$UNIQUEDIR/$path"
1284	}	1631	}
1285		1632
1286	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1287	# all maps in C++...	1634	# all maps in C++...
1288	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1290		1637
1291	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1292	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1293	}	1640	}
1294		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1295	sub unlink_save {	1650	sub unlink_save {
1296	my ($self) = @_;	1651	my ($self) = @_;
1297		1652
1298	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1300	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1301
1302	#d#TODO remove .map and also nuke
1303	$save =~ s/\.map// or return;#d#
1304	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1305	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1306	}	1656	}
1307		1657
1308	sub load_header_from($) {	1658	sub load_header_from($) {
1309	my ($self, $path) = @_;	1659	my ($self, $path) = @_;
1310		1660
…		…
1360	$self->load_header_orig	1710	$self->load_header_orig
1361	or return;	1711	or return;
1362	$self->prepare_orig;	1712	$self->prepare_orig;
1363	}	1713	}
1364		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
1365	1	1721	1
1366	}	1722	}
1367		1723
1368	sub find;	1724	sub find;
1369	sub find {	1725	sub find {
…		…
1381	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1382		1738
1383	$map->load_header	1739	$map->load_header
1384	or return;	1740	or return;
1385		1741
1386	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1387	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1388	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1389	$map->reset;	1745	$map->reset;
1390	undef $guard;	1746	undef $guard;
1391	return find $path;	1747	return find $path;
…		…
1402	my ($self) = @_;	1758	my ($self) = @_;
1403		1759
1404	local $self->{deny_reset} = 1; # loading can take a long time	1760	local $self->{deny_reset} = 1; # loading can take a long time
1405		1761
1406	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1407	my $guard = cf::lock_acquire "map_load:$path";	1765	my $guard = cf::lock_acquire "map_load:$path";
1408		1766
1409	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1410		1768
1411	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1412		1770
1413	$self->alloc;	1771	$self->alloc;
1414		1772
1415	$self->pre_load;	1773	$self->pre_load;
1416
1417	$self->_load_objects ($self->{load_path}, 1)
1418	or return;
1419
1420	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1421	if delete $self->{load_original};
1422
1423	if (my $uniq = $self->uniq_path) {
1424	utf8::encode $uniq;
1425	if (aio_open $uniq, O_RDONLY, 0) {
1426	$self->clear_unique_items;
1427	$self->_load_objects ($uniq, 0);
1428	}
1429	}
1430
1431	Coro::cede;
1432
1433	# now do the right thing for maps
1434	$self->link_multipart_objects;
1435
1436	unless ($self->{deny_activate}) {
1437	$self->decay_objects;
1438	$self->fix_auto_apply;
1439	$self->update_buttons;
1440	Coro::cede;	1774	Coro::cede;
1441	$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;
1442	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1443	unless $self->difficulty;	1794	unless $self->difficulty;
1444	Coro::cede;	1795	Coro::cede;
		1796
		1797	unless ($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;
1445	$self->activate;	1804	$self->activate;
		1805	}
		1806
		1807	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	1808	}
1447		1809
1448	$self->post_load;	1810	$self->post_load;
1449
1450	$self->in_memory (cf::MAP_IN_MEMORY);
1451	}	1811	}
1452		1812
1453	sub customise_for {	1813	sub customise_for {
1454	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1455		1815
1456	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1457	if $self->per_player;	1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
1458		1821
1459	$self	1822	$self
1460	}	1823	}
1461		1824
1462	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
…		…
1573		1936
1574	sub reset_at {	1937	sub reset_at {
1575	my ($self) = @_;	1938	my ($self) = @_;
1576		1939
1577	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1578	return 1e99 if $self->isa ("ext::map_per_player");#d#
1579	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1580		1942
1581	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1582	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1583		1945
…		…
1594	my ($self) = @_;	1956	my ($self) = @_;
1595		1957
1596	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1597		1959
1598	return if $self->players;	1960	return if $self->players;
1599	return if $self->isa ("ext::map_per_player");#d#
1600		1961
1601	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	}
1602		1973
1603	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
1604		1975
1605	$self->in_memory (cf::MAP_SWAPPED);
1606	$self->clear;	1976	$self->clear;
1607		1977
1608	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1609		1979
1610	$self->unlink_save;	1980	$self->unlink_save;
…		…
1629	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1630		2000
1631	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1632	}	2002	}
1633		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
1634	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1635		2041
1636	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1637	instantiated unique items. May block.	2043	instantiated unique items. May block.
1638		2044
1639	=cut	2045	=cut
1640		2046
1641	sub unique_maps() {	2047	sub unique_maps() {
1642	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2048	[
1643	or return;	2049	map {
1644
1645	my @paths;
1646
1647	for (@$files) {
1648	utf8::decode $_;	2050	utf8::decode $_;
1649	next if /\.pst$/;	2051	/\.map$/
1650	next unless /^$PATH_SEP/o;	2052	? normalise $_
1651		2053	: ()
1652	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1653	}	2055	]
1654
1655	\@paths
1656	}	2056	}
1657		2057
1658	package cf;	2058	package cf;
1659		2059
1660	=back	2060	=back
…		…
1706		2106
1707	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1708		2108
1709	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1710	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1711	} 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 {
1712	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1713	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1714	}	2128	}
1715	}	2129	}
1716		2130
1717	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1718		2132
…		…
1766	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1767		2181
1768	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1769		2183
1770	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1771	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1772		2186
1773	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1774	}	2188	}
1775		2189
1776	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1777	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1778		2194
1779	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1780		2196
1781	unless ($map) {	2197	unless ($map) {
1782	# restore original map position	2198	# restore original map position
…		…
1800	$map->load;	2216	$map->load;
1801	$map->load_diag;	2217	$map->load_diag;
1802		2218
1803	return unless $self->contr->active;	2219	return unless $self->contr->active;
1804	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1805	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1806	}	2224	}
1807		2225
1808	cf::player->attach (
1809	on_logout => sub {
1810	my ($pl) = @_;
1811
1812	# abort map switching before logout
1813	if ($pl->ob->{_link_pos}) {
1814	cf::sync_job {
1815	$pl->ob->leave_link
1816	};
1817	}
1818	},
1819	on_login => sub {
1820	my ($pl) = @_;
1821
1822	# try to abort aborted map switching on player login :)
1823	# should happen only on crashes
1824	if ($pl->ob->{_link_pos}) {
1825	$pl->ob->enter_link;
1826	(async {
1827	# we need this sleep as the login has a concurrent enter_exit running
1828	# and this sleep increases chances of the player not ending up in scorn
1829	$pl->ob->reply (undef,
1830	"There was an internal problem at your last logout, "
1831	. "the server will try to bring you to your intended destination in a second.",
1832	cf::NDI_RED);
1833	Coro::Timer::sleep 1;
1834	$pl->ob->leave_link;
1835	})->prio (2);
1836	}
1837	},
1838	);
1839
1840	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1841		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
1842	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1843		2236
1844	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1845	my ($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;
1846		2242
1847	$self->enter_link;	2243	$self->enter_link;
1848		2244
1849	(async {	2245	(async {
1850	my $map = eval {	2246	my $map = eval {
1851	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1852	$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
1853	$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 $@;
1854	} or	2262	}
1855	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1856		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1857	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1858	})->prio (1);	2268	})->prio (1);
1859	}	2269	}
1860		2270
1861	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1862		2272
…		…
1901		2311
1902	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1903		2313
1904	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1905	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
1906	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2316	my $meta = "$RANDOMDIR/$md5.meta";
1907		2317
1908	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1909	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
1910	undef $fh;	2320	undef $fh;
1911	aio_rename "$meta~", $meta;	2321	aio_rename "$meta~", $meta;
…		…
1920		2330
1921	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1922		2332
1923	if ($exit->slaying eq "/!") {	2333	if ($exit->slaying eq "/!") {
1924	#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
1925	cf::sync_job { prepare_random_map $exit };	2337	cf::sync_job { prepare_random_map $exit };
1926	}	2338	}
1927		2339
1928	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;
1929	my $hp = $exit->stats->hp;	2341	my $hp = $exit->stats->hp;
…		…
1937	$self->goto ($slaying, $hp, $sp);	2349	$self->goto ($slaying, $hp, $sp);
1938		2350
1939	1;	2351	1;
1940	}) {	2352	}) {
1941	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1942	. "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. "
1943	. "Please report this to the dungeon master!",	2355	. "Please report this to the dungeon master!",
1944	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1945		2357
1946	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1947	$self->leave_link;	2359	$self->leave_link;
1948	}	2360	}
1949	})->prio (1);	2361	})->prio (1);
…		…
1962		2374
1963	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1964	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1965		2377
1966	utf8::encode $text;	2378	utf8::encode $text;
1967	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1968	}	2380	}
1969		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	}
1970		2432
1971	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1972		2434
1973	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1974	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>,
1975	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>.
1976		2438
1977	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
1978	reliable at some point in the future.	2440	become reliable at some point in the future.
1979		2441
1980	=cut	2442	=cut
1981		2443
1982	sub cf::client::query {	2444	sub cf::client::query {
1983	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1991	utf8::encode $text;	2453	utf8::encode $text;
1992	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1993		2455
1994	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1995	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1996	}	2460	}
1997		2461
1998	cf::client->attach (	2462	cf::client->attach (
1999	on_reply => sub {	2463	on_reply => sub {
2000	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2015	} else {	2479	} else {
2016	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2017	}	2481	}
2018	}	2482	}
2019	},	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	},
2020	);	2502	);
2021		2503
2022	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2023		2505
2024	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
…		…
2071		2553
2072	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
2073		2555
2074	=pod	2556	=pod
2075		2557
2076	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
2077		2559
2078	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
2079	cf::object::player player	2561	cf::object::player player
2080	cf::player peaceful	2562	cf::player peaceful
2081	cf::map trigger	2563	cf::map trigger
…		…
2162	=back	2644	=back
2163		2645
2164	=cut	2646	=cut
2165		2647
2166	#############################################################################	2648	#############################################################################
2167
2168	=head2 EXTENSION DATABASE SUPPORT
2169
2170	Crossfire maintains a very simple database for extension use. It can
2171	currently store anything that can be serialised using Storable, which
2172	excludes objects.
2173
2174	The parameter C<$family> should best start with the name of the extension
2175	using it, it should be unique.
2176
2177	=over 4
2178
2179	=item $hashref = cf::db_get $family
2180
2181	Return a hashref for use by the extension C<$family>, which can be
2182	modified. After modifications, you have to call C<cf::db_dirty> or
2183	C<cf::db_sync>.
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database
2188
2189	=item cf::db_put $family => $hashref
2190
2191	Stores the given family hashref into the database. Updates are delayed, if
2192	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2193
2194	=item cf::db_put $family => $key => $value
2195
2196	Stores the given C<$value> in the family hash. Updates are delayed, if you
2197	want the data to be synced to disk immediately, use C<cf::db_sync>.
2198
2199	=item cf::db_dirty
2200
2201	Marks the database as dirty, to be updated at a later time.
2202
2203	=item cf::db_sync
2204
2205	Immediately write the database to disk I<if it is dirty>.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	{
2212	my $path = cf::localdir . "/database.pst";
2213
2214	sub db_load() {
2215	$DB = stat $path ? Storable::retrieve $path : { };
2216	}
2217
2218	my $pid;
2219
2220	sub db_save() {
2221	waitpid $pid, 0 if $pid;
2222	if (0 == ($pid = fork)) {
2223	$DB->{_meta}{version} = 1;
2224	Storable::nstore $DB, "$path~";
2225	rename "$path~", $path;
2226	cf::_exit 0 if defined $pid;
2227	}
2228	}
2229
2230	my $dirty;
2231
2232	sub db_sync() {
2233	db_save if $dirty;
2234	undef $dirty;
2235	}
2236
2237	my $idle = Event->idle (
2238	reentrant => 0,
2239	min => 10,
2240	max => 20,
2241	repeat => 0,
2242	data => WF_AUTOCANCEL,
2243	cb => \&db_sync,
2244	);
2245
2246	sub db_dirty() {
2247	$dirty = 1;
2248	$idle->start;
2249	}
2250
2251	sub db_get($;$) {
2252	@_ >= 2
2253	? $DB->{$_[0]}{$_[1]}
2254	: ($DB->{$_[0]} ||= { })
2255	}
2256
2257	sub db_put($$;$) {
2258	if (@_ >= 3) {
2259	$DB->{$_[0]}{$_[1]} = $_[2];
2260	} else {
2261	$DB->{$_[0]} = $_[1];
2262	}
2263	db_dirty;
2264	}
2265
2266	cf::global->attach (
2267	prio => 10000,
2268	on_cleanup => sub {
2269	db_sync;
2270	},
2271	);
2272	}
2273
2274	#############################################################################
2275	# the server's init and main functions	2649	# the server's init and main functions
2276		2650
2277	sub load_resources {	2651	sub load_facedata($) {
2278	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2652	my ($path) = @_;
		2653
		2654	warn "loading facedata from $path\n";
		2655
		2656	my $facedata;
		2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
		2659
		2660	$facedata = Coro::Storable::thaw $facedata;
		2661
		2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2664
		2665	{
		2666	my $faces = $facedata->{faceinfo};
		2667
		2668	while (my ($face, $info) = each %$faces) {
		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2673	Coro::cede;
		2674	}
		2675
		2676	while (my ($face, $info) = each %$faces) {
		2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
2279	or die "unable to load regions file\n";#d#	2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
2280	}	2737	}
2281		2738
2282	sub cfg_load {	2739	sub cfg_load {
2283	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
2284	or return;	2741	or return;
2285		2742
2286	local $/;	2743	local $/;
2287	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
2288		2745
…		…
2296	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2297	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
2298	};	2755	};
2299	warn $@ if $@;	2756	warn $@ if $@;
2300	}	2757	}
2301	}
2302
2303	sub init {
2304	load_resources;
2305	}	2758	}
2306		2759
2307	sub main {	2760	sub main {
2308	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2309	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
…		…
2312	Event::one_event;	2765	Event::one_event;
2313	})->prio (Coro::PRIO_MAX);	2766	})->prio (Coro::PRIO_MAX);
2314	};	2767	};
2315		2768
2316	cfg_load;	2769	cfg_load;
2317	db_load;	2770	db_init;
2318	load_extensions;	2771	load_extensions;
2319		2772
2320	$TICK_WATCHER->start;	2773	$TICK_WATCHER->start;
2321	Event::loop;	2774	Event::loop;
2322	}	2775	}
…		…
2337	},	2790	},
2338	);	2791	);
2339	}	2792	}
2340	}	2793	}
2341		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
2342	sub emergency_save() {	2833	sub emergency_save() {
2343	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2344		2835
2345	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2346		2837
…		…
2361	my $map = $cf::MAP{$path} or next;	2852	my $map = $cf::MAP{$path} or next;
2362	$map->valid or next;	2853	$map->valid or next;
2363	$map->save;	2854	$map->save;
2364	}	2855	}
2365	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 $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
2366	};	2861	};
2367		2862
2368	warn "leave emergency perl save\n";	2863	warn "leave emergency perl save\n";
2369	}	2864	}
2370		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2371	sub reload() {	2873	sub do_reload_perl() {
2372	# can/must only be called in main	2874	# can/must only be called in main
2373	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2374	warn "can only reload from main coroutine";	2876	warn "can only reload from main coroutine";
2375	return;	2877	return;
2376	}	2878	}
2377		2879
2378	warn "reloading...";	2880	warn "reloading...";
2379		2881
2380	warn "cancelling server ticker";	2882	warn "entering sync_job";
2381	$TICK_WATCHER->cancel;
2382		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2383	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2384		2888
2385	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2386	# 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
2387
2388	warn "syncing database to disk";
2389	cf::db_sync;
2390		2893
2391	warn "cancelling all WF_AUTOCANCEL watchers";	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2392	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2393	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2394	}	2897	}
2395		2898
2396	warn "flushing outstanding aio requests";	2899	warn "flushing outstanding aio requests";
2397	for (;;) {	2900	for (;;) {
		2901	BDB::flush;
2398	IO::AIO::flush;	2902	IO::AIO::flush;
2399	Coro::cede;	2903	Coro::cede;
2400	last unless IO::AIO::nreqs;	2904	last unless IO::AIO::nreqs || BDB::nreqs;
2401	warn "iterate...";	2905	warn "iterate...";
2402	}	2906	}
		2907
		2908	++$RELOAD;
2403		2909
2404	warn "cancelling all extension coros";	2910	warn "cancelling all extension coros";
2405	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2406	%EXT_CORO = ();	2912	%EXT_CORO = ();
2407		2913
2408	warn "removing commands";	2914	warn "removing commands";
2409	%COMMAND = ();	2915	%COMMAND = ();
2410		2916
2411	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2412	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2413		2920
2414	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2415	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2416	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2417		2924
…		…
2447	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2448	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);
2449		2956
2450	warn "unloading cf.pm \"a bit\"";	2957	warn "unloading cf.pm \"a bit\"";
2451	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2452		2960
2453	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2454	# and global variables created in xs	2962	# and global variables created in xs
2455	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2456		2964
…		…
2460	require cf;	2968	require cf;
2461	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2462		2970
2463	warn "loading config and database again";	2971	warn "loading config and database again";
2464	cf::cfg_load;	2972	cf::cfg_load;
2465	cf::db_load;
2466		2973
2467	warn "loading extensions";	2974	warn "loading extensions";
2468	cf::load_extensions;	2975	cf::load_extensions;
2469		2976
2470	warn "reattaching attachments to objects/players";	2977	warn "reattaching attachments to objects/players";
2471	_global_reattach;	2978	_global_reattach; # objects, sockets
2472	warn "reattaching attachments to maps";	2979	warn "reattaching attachments to maps";
2473	reattach $_ for values %MAP;	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2474		2983
2475	warn "loading reloadable resources";	2984	warn "leaving sync_job";
2476	load_resources;
2477		2985
2478	warn "restarting server ticker";	2986	1
2479		2987	} or do {
2480	$TICK_WATCHER->start;
2481	};
2482
2483	if ($@) {
2484	warn $@;	2988	warn $@;
2485	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2486	exit 1;	2990	exit 1;
2487	}	2991	};
2488		2992
2489	warn "reloaded";	2993	warn "reloaded";
2490	};	2994	};
2491		2995
2492	our $RELOAD_WATCHER; # used only during reload	2996	our $RELOAD_WATCHER; # used only during reload
2493		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 $RELOAD_WATCHER;
		3009	},
		3010	);
		3011	}
		3012
2494	register_command "reload" => sub {	3013	register_command "reload" => sub {
2495	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2496		3015
2497	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2498	$who->message ("reloading server.");	3017	$who->message ("reloading server.");
2499		3018	async { reload_perl };
2500	# doing reload synchronously and two reloads happen back-to-back,
2501	# coro crashes during coro_state_free->destroy here.
2502
2503	$RELOAD_WATCHER ||= Event->timer (
2504	reentrant => 0,
2505	after => 0,
2506	data => WF_AUTOCANCEL,
2507	cb => sub {
2508	reload;
2509	undef $RELOAD_WATCHER;
2510	},
2511	);
2512	}	3019	}
2513	};	3020	};
2514		3021
2515	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2516		3023
2517	my $bug_warning = 0;	3024	my $bug_warning = 0;
2518		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;
2519	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2520	reentrant => 0,	3050	reentrant => 0,
2521	parked => 1,	3051	parked => 1,
2522	prio => 0,	3052	prio => 0,
2523	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
…		…
2527	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2528	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2529	return;	3059	return;
2530	}	3060	}
2531		3061
2532	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2533		3063
2534	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
2535	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2536	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2537		3091
2538	$WAIT_FOR_TICK->broadcast;	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2539	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
2540		3094	Coro::async_pool {
2541	Event::sweep;	3095	write_runtime
2542	Coro::cede_notself;	3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
2543		3098	}
		3099
2544	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2545	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2546		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
2547	# 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
2548	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2549		3114
2550	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2551	$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
2552	},	3124	},
2553	);	3125	);
2554		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;
2555	IO::AIO::max_poll_time $TICK * 0.1;	3181	IO::AIO::max_poll_time $TICK * 0.1;
2556
2557	undef $Coro::AIO::WATCHER;
2558	$AIO_POLL_WATCHER = Event->io (	3182	$AIO_POLL_WATCHER = Event->io (
2559	reentrant => 0,	3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
2560	fd => IO::AIO::poll_fileno,	3185	fd => IO::AIO::poll_fileno,
2561	poll => 'r',	3186	poll => 'r',
2562	prio => 6,	3187	prio => 6,
2563	data => WF_AUTOCANCEL,
2564	cb => \&IO::AIO::poll_cb,	3188	cb => \&IO::AIO::poll_cb,
2565	);	3189	);
		3190	}
2566		3191
2567	$WRITE_RUNTIME_WATCHER = Event->timer (	3192	my $_log_backtrace;
2568	reentrant => 0,	3193
2569	data => WF_AUTOCANCEL,	3194	sub _log_backtrace {
2570	after => 1,	3195	my ($msg, @addr) = @_;
2571	interval => 10,	3196
2572	prio => 6, # keep it lowest so it acts like a watchdog	3197	$msg =~ s/\n//;
2573	cb => Coro::unblock_sub {	3198
2574	write_runtime	3199	# limit the # of concurrent backtraces
2575	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";
2576	},	3227	}
2577	);	3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2578		3232
2579	END { cf::emergency_save }	3233	END { cf::emergency_save }
2580		3234
2581	1	3235	1
2582		3236

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