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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.292 by root, Tue Jul 3 00:54:57 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
26		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
53		84
54	our %CFG;	85	our %CFG;
55		86
56	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	88	our $RUNTIME;
58		89
59	our %PLAYER; # all users	90	our %PLAYER; # all users
60	our %MAP; # all maps	91	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	92	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		93
67	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
70	binmode STDOUT;	101	binmode STDOUT;
71	binmode STDERR;	102	binmode STDERR;
72		103
73	# read virtual server time, if available	104	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
78	}	109	}
79		110
80	mkdir cf::localdir;	111	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		113
86	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
87		115
88	sub cf::map::normalise;	116	sub cf::map::normalise;
89		117
…		…
100	=item $cf::RUNTIME	128	=item $cf::RUNTIME
101		129
102	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
103	every server tick.	131	every server tick.
104		132
105	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
106		136
107	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
108	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
109		141
110	=item $cf::NOW	142	=item $cf::NOW
111		143
112	The time of the last (current) server tick.	144	The time of the last (current) server tick.
113		145
114	=item $cf::TICK	146	=item $cf::TICK
115		147
116	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
117		159
118	=item %cf::CFG	160	=item %cf::CFG
119		161
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	163	from wherever your confdir points to.
122		164
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	165	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		166
125	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
126	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	168	returns directly I<after> the tick processing (and consequently, can only wake one process
127	processing has been done. Call C<< ->wait >> on them to maximise the	169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
128	window of cpu time available, or simply to synchronise to the server tick.
129		170
130	=back	171	=back
131		172
132	=cut	173	=cut
133		174
134	BEGIN {	175	BEGIN {
135	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	177	my $msg = join "", @_;
137	utf8::encode $msg;
138		178
139	$msg .= "\n"	179	$msg .= "\n"
140	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
141		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
142	LOG llevError, $msg;	185	LOG llevError, $msg;
143	};	186	};
144	}	187	}
145		188
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
151	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
152		196
153	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
154	# within the Safe compartment.	198	# within the Safe compartment.
155	for my $pkg (qw(	199	for my $pkg (qw(
156	cf::global cf::attachable	200	cf::global cf::attachable
…		…
164	}	208	}
165		209
166	$Event::DIED = sub {	210	$Event::DIED = sub {
167	warn "error in event callback: @_";	211	warn "error in event callback: @_";
168	};	212	};
		213
		214	#############################################################################
169		215
170	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
171		217
172	=over 4	218	=over 4
173		219
…		…
192	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
193	$d	239	$d
194	} || "[unable to dump $_[0]: '$@']";	240	} || "[unable to dump $_[0]: '$@']";
195	}	241	}
196		242
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
200		244
201	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
202		246
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
211		248
212	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
213		250
214	=cut	251	=cut
215		252
216	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
218	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
219	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
220		257
221	=item cf::lock_wait $string	258	=item cf::lock_wait $string
222		259
223	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
224		261
…		…
230	returned.	267	returned.
231		268
232	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
234		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
235	=cut	276	=cut
236		277
237	our %LOCK;	278	our %LOCK;
238		279
239	sub lock_wait($) {	280	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
260	}	301	}
261	}	302	}
262		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
263	sub freeze_mainloop {	310	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
265		312
266	my $guard = Coro::guard {	313	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	314	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	315	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
272	$guard	317	$guard
273	}	318	}
274		319
275	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
…		…
282		327
283	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
284		329
285	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
286		331
287	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
290		336
291	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
294	fast or be very important.	340	fast or be very important.
…		…
297		343
298	sub sync_job(&) {	344	sub sync_job(&) {
299	my ($job) = @_;	345	my ($job) = @_;
300		346
301	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
302	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
304		352
305	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
317		365
318	while ($busy) {	366	while ($busy) {
319	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
320	}	368	}
321		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
322	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
323	} else {	378	} else {
324	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
325		380
326	$job->()	381	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
346		401
347	$coro	402	$coro
348	}	403	}
349		404
350	sub write_runtime {	405	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		406
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
354	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
355		411
356	my $value = $cf::RUNTIME + 90 + 10;	412	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		413
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	414	sub fork_call(&@) {
361	and return;	415	my ($cb, @args) = @_;
362		416
363	aio_fsync $fh	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
364	and return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
365		421
		422	if (my $pid = fork) {
366	close $fh	423	close $fh2;
367	or return;
368		424
369	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
370	and return;	426	$res = Coro::Storable::thaw $res;
371		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
372	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
373	}	574	}
374		575
375	=back	576	=back
376		577
377	=cut	578	=cut
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
386		587
387	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	590	Crossfire TRT).
390		591
391	=over 4	592	=over 4
392		593
393	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
394		595
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
558		759
559	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		764
564	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	766	my $pkg = shift @arg;
566		767
567	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
597	}	798	}
598		799
599	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
600	} else {	801	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	803	}
603		804
604	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
605	}	806	}
606		807
…		…
608	if (ref $_[0]) {	809	if (ref $_[0]) {
609	_object_attach @_;	810	_object_attach @_;
610	} else {	811	} else {
611	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
612	}	813	}
		814	_recalc_want;
613	};	815	};
614		816
615	# all those should be optimised	817	# all those should be optimised
616	sub cf::attachable::detach {	818	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
621	reattach ($obj);	823	reattach ($obj);
622	} else {	824	} else {
623	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
624	}	826	}
		827	_recalc_want;
625	};	828	};
626		829
627	sub cf::attachable::attached {	830	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
629		832
…		…
752	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
753		956
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	961	close $fh;
759		962
760	if (@$objs) {	963	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	969	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
768	}	971	}
769	} else {	972	} else {
770	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
776	}	979	}
777	} else {	980	} else {
778	aio_unlink $filename;	981	aio_unlink $filename;
779	aio_unlink "$filename.pst";	982	aio_unlink "$filename.pst";
780	}	983	}
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	}	984	}
788	}	985	}
789		986
790	sub object_freezer_as_string {	987	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	988	my ($rdata, $objs) = @_;
…		…
797		994
798	sub object_thawer_load {	995	sub object_thawer_load {
799	my ($filename) = @_;	996	my ($filename) = @_;
800		997
801	my ($data, $av);	998	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		999
806	(aio_load $filename, $data) >= 0	1000	(aio_load $filename, $data) >= 0
807	or return;	1001	or return;
808		1002
809	unless (aio_stat "$filename.pst") {	1003	unless (aio_stat "$filename.pst") {
…		…
811	or return;	1005	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
813	}	1007	}
814		1008
815	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	1011	return ($data, $av);
818	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
819		1019
820	#############################################################################	1020	#############################################################################
821	# command handling &c	1021	# command handling &c
822		1022
823	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1037	}
838		1038
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1040
841	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
842		1046
843	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
844	called.	1048	called.
845		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
846	=cut	1061	=cut
847		1062
848	sub register_extcmd {	1063	sub register_extcmd {
849	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
850		1065
851	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
852	}	1073	}
853		1074
854	cf::player->attach (	1075	cf::player->attach (
855	on_command => sub {	1076	on_command => sub {
856	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
865	cf::override;	1086	cf::override;
866	},	1087	},
867	on_extcmd => sub {	1088	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
869		1090
870	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1092
872	if (ref $msg) {	1093	if (ref $msg) {
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
874	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
875	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
881		1102
882	cf::override;	1103	cf::override;
883	},	1104	},
884	);	1105	);
885		1106
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 {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
921	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1112	next unless -r $path;
923	eval {	1113
924	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
925	1	1171	}
926	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
927	}	1177	};
928	}	1178	}
929		1179
930	#############################################################################	1180	#############################################################################
931		1181
		1182	=back
		1183
932	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
933		1185
934	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
935		1187
936	=cut	1188	=cut
…		…
948	Returns the given player object, loading it if necessary (might block).	1200	Returns the given player object, loading it if necessary (might block).
949		1201
950	=cut	1202	=cut
951		1203
952	sub playerdir($) {	1204	sub playerdir($) {
953	cf::localdir	1205	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1207	}
959		1208
960	sub path($) {	1209	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1211
963	(playerdir $login) . "/$login.pl"	1212	(playerdir $login) . "/playerdata"
964	}	1213	}
965		1214
966	sub find_active($) {	1215	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1216	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1217	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1230	my $login = $_[0];
982		1231
983	my $guard = cf::lock_acquire "user_find:$login";	1232	my $guard = cf::lock_acquire "user_find:$login";
984		1233
985	$cf::PLAYER{$_[0]} || do {	1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
986	my $pl = load_pl path $login	1242	my $pl = load_pl path $login
987	or return;	1243	or return;
988	$cf::PLAYER{$login} = $pl	1244	$cf::PLAYER{$login} = $pl
989	}	1245	}
990	}	1246	}
…		…
1027		1283
1028	=cut	1284	=cut
1029		1285
1030	sub quit_character {	1286	sub quit_character {
1031	my ($pl) = @_;	1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
1032		1290
1033	$pl->{deny_save} = 1;	1291	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1293
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1299	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1300	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1301	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1302	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
1046	IO::AIO::aio_rmtree $temp;	1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
1047	}	1325	}
1048		1326
1049	=item cf::player::list_logins	1327	=item cf::player::list_logins
1050		1328
1051	Returns am arrayref of all valid playernames in the system, can take a	1329	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1330	while and may block, so not sync_job-capable, ever.
1053		1331
1054	=cut	1332	=cut
1055		1333
1056	sub list_logins {	1334	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1335	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1336	or return [];
1059		1337
1060	my @logins;	1338	my @logins;
1061		1339
1062	for my $login (@$dirs) {	1340	for my $login (@$dirs) {
…		…
1079	=cut	1357	=cut
1080		1358
1081	sub maps($) {	1359	sub maps($) {
1082	my ($pl) = @_;	1360	my ($pl) = @_;
1083		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
1084	my $files = aio_readdir playerdir $pl	1364	my $files = aio_readdir playerdir $pl
1085	or return;	1365	or return;
1086		1366
1087	my @paths;	1367	my @paths;
1088		1368
1089	for (@$files) {	1369	for (@$files) {
1090	utf8::decode $_;	1370	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1371	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1372	next unless /^$PATH_SEP/o;
1093		1373
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1374	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1375	}
1096		1376
1097	\@paths	1377	\@paths
1098	}	1378	}
1099		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1427	=item $player->ext_reply ($msgid, %msg)
1101		1428
1102	Sends an ext reply to the player.	1429	Sends an ext reply to the player.
1103		1430
1104	=cut	1431	=cut
1105		1432
1106	sub ext_reply($$$%) {	1433	sub ext_reply($$%) {
1107	my ($self, $id, %msg) = @_;	1434	my ($self, $id, %msg) = @_;
1108		1435
1109	$msg{msgid} = $id;	1436	$msg{msgid} = $id;
1110		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1111	$self->send ("ext " . cf::to_json \%msg);
1112	}	1438	}
1113		1439
1114	package cf;	1440	=item $player->ext_event ($type, %msg)
		1441
		1442	Sends an ext event to the client.
		1443
		1444	=cut
		1445
		1446	sub ext_event($$%) {
		1447	my ($self, $type, %msg) = @_;
		1448
		1449	$self->ns->ext_event ($type, %msg);
		1450	}
		1451
		1452	=head3 cf::region
		1453
		1454	=over 4
		1455
		1456	=cut
		1457
		1458	package cf::region;
		1459
		1460	=item cf::region::find_by_path $path
		1461
		1462	Tries to decuce the likely region for a map knowing only its path.
		1463
		1464	=cut
		1465
		1466	sub find_by_path($) {
		1467	my ($path) = @_;
		1468
		1469	my ($match, $specificity);
		1470
		1471	for my $region (list) {
		1472	if ($region->match && $path =~ $region->match) {
		1473	($match, $specificity) = ($region, $region->specificity)
		1474	if $region->specificity > $specificity;
		1475	}
		1476	}
		1477
		1478	$match
		1479	}
1115		1480
1116	=back	1481	=back
1117
1118		1482
1119	=head3 cf::map	1483	=head3 cf::map
1120		1484
1121	=over 4	1485	=over 4
1122		1486
…		…
1177	my ($self, $merge) = @_;	1541	my ($self, $merge) = @_;
1178		1542
1179	# we have to keep some variables in memory intact	1543	# we have to keep some variables in memory intact
1180	local $self->{path};	1544	local $self->{path};
1181	local $self->{load_path};	1545	local $self->{load_path};
1182	local $self->{deny_save};
1183	local $self->{deny_reset};
1184		1546
1185	$self->SUPER::thawer_merge ($merge);	1547	$self->SUPER::thawer_merge ($merge);
1186	}	1548	}
1187		1549
1188	sub normalise {	1550	sub normalise {
…		…
1260		1622
1261	# the original (read-only) location	1623	# the original (read-only) location
1262	sub load_path {	1624	sub load_path {
1263	my ($self) = @_;	1625	my ($self) = @_;
1264		1626
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1627	"$MAPDIR/$self->{path}.map"
1266	}	1628	}
1267		1629
1268	# the temporary/swap location	1630	# the temporary/swap location
1269	sub save_path {	1631	sub save_path {
1270	my ($self) = @_;	1632	my ($self) = @_;
1271		1633
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1635	"$TMPDIR/$path.map"
1274	}	1636	}
1275		1637
1276	# the unique path, undef == no special unique path	1638	# the unique path, undef == no special unique path
1277	sub uniq_path {	1639	sub uniq_path {
1278	my ($self) = @_;	1640	my ($self) = @_;
1279		1641
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1643	"$UNIQUEDIR/$path"
1282	}	1644	}
1283		1645
1284	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1285	# all maps in C++...	1647	# all maps in C++...
1286	sub change_all_map_light {	1648	sub change_all_map_light {
…		…
1288		1650
1289	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1290	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
1291	}	1653	}
1292		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
		1661	}
		1662
1293	sub unlink_save {	1663	sub unlink_save {
1294	my ($self) = @_;	1664	my ($self) = @_;
1295		1665
1296	utf8::encode (my $save = $self->save_path);	1666	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1667	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1669	}
1305		1670
1306	sub load_header_from($) {	1671	sub load_header_from($) {
1307	my ($self, $path) = @_;	1672	my ($self, $path) = @_;
1308		1673
…		…
1358	$self->load_header_orig	1723	$self->load_header_orig
1359	or return;	1724	or return;
1360	$self->prepare_orig;	1725	$self->prepare_orig;
1361	}	1726	}
1362		1727
		1728	$self->{deny_reset} = 1
		1729	if $self->no_reset;
		1730
		1731	$self->default_region (cf::region::find_by_path $self->{path})
		1732	unless $self->default_region;
		1733
1363	1	1734	1
1364	}	1735	}
1365		1736
1366	sub find;	1737	sub find;
1367	sub find {	1738	sub find {
…		…
1379	$map->{last_save} = $cf::RUNTIME;	1750	$map->{last_save} = $cf::RUNTIME;
1380		1751
1381	$map->load_header	1752	$map->load_header
1382	or return;	1753	or return;
1383		1754
1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1385	# doing this can freeze the server in a sync job, obviously	1756	# doing this can freeze the server in a sync job, obviously
1386	#$cf::WAIT_FOR_TICK->wait;	1757	#$cf::WAIT_FOR_TICK->wait;
1387	$map->reset;	1758	$map->reset;
1388	undef $guard;	1759	undef $guard;
1389	return find $path;	1760	return find $path;
…		…
1400	my ($self) = @_;	1771	my ($self) = @_;
1401		1772
1402	local $self->{deny_reset} = 1; # loading can take a long time	1773	local $self->{deny_reset} = 1; # loading can take a long time
1403		1774
1404	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1405	my $guard = cf::lock_acquire "map_load:$path";	1778	my $guard = cf::lock_acquire "map_load:$path";
1406		1779
1407	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1408		1781
1409	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1410		1783
1411	$self->alloc;	1784	$self->alloc;
1412		1785
1413	$self->pre_load;	1786	$self->pre_load;
1414
1415	$self->_load_objects ($self->{load_path}, 1)
1416	or return;
1417
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1419	if delete $self->{load_original};
1420
1421	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {
1424	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);
1426	}
1427	}
1428
1429	Coro::cede;
1430
1431	# now do the right thing for maps
1432	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;	1787	Coro::cede;
1439	$self->set_darkness_map;	1788
		1789	$self->_load_objects ($self->{load_path}, 1)
		1790	or return;
		1791
		1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1793	if delete $self->{load_original};
		1794
		1795	if (my $uniq = $self->uniq_path) {
		1796	utf8::encode $uniq;
		1797	if (aio_open $uniq, O_RDONLY, 0) {
		1798	$self->clear_unique_items;
		1799	$self->_load_objects ($uniq, 0);
		1800	}
		1801	}
		1802
		1803	Coro::cede;
		1804	# now do the right thing for maps
		1805	$self->link_multipart_objects;
1440	$self->difficulty ($self->estimate_difficulty)	1806	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	1807	unless $self->difficulty;
1442	Coro::cede;	1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1443	$self->activate;	1817	$self->activate;
		1818	}
		1819
		1820	$self->in_memory (cf::MAP_IN_MEMORY);
1444	}	1821	}
1445		1822
1446	$self->post_load;	1823	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	1824	}
1450		1825
1451	sub customise_for {	1826	sub customise_for {
1452	my ($self, $ob) = @_;	1827	my ($self, $ob) = @_;
1453		1828
1454	return find "~" . $ob->name . "/" . $self->{path}	1829	return find "~" . $ob->name . "/" . $self->{path}
1455	if $self->per_player;	1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
1456		1834
1457	$self	1835	$self
1458	}	1836	}
1459		1837
1460	# find and load all maps in the 3x3 area around a map	1838	# find and load all maps in the 3x3 area around a map
…		…
1571		1949
1572	sub reset_at {	1950	sub reset_at {
1573	my ($self) = @_;	1951	my ($self) = @_;
1574		1952
1575	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1577	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1578		1955
1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1580	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1581		1958
…		…
1592	my ($self) = @_;	1969	my ($self) = @_;
1593		1970
1594	my $lock = cf::lock_acquire "map_data:$self->{path}";	1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
1595		1972
1596	return if $self->players;	1973	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#
1598		1974
1599	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
		1976
		1977	$self->in_memory (cf::MAP_SWAPPED);
		1978
		1979	# need to save uniques path
		1980	unless ($self->{deny_save}) {
		1981	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1982
		1983	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1984	if $uniq;
		1985	}
1600		1986
1601	delete $cf::MAP{$self->path};	1987	delete $cf::MAP{$self->path};
1602		1988
1603	$self->in_memory (cf::MAP_SWAPPED);
1604	$self->clear;	1989	$self->clear;
1605		1990
1606	$_->clear_links_to ($self) for values %cf::MAP;	1991	$_->clear_links_to ($self) for values %cf::MAP;
1607		1992
1608	$self->unlink_save;	1993	$self->unlink_save;
…		…
1627	$cf::MAP{$self->path} = $self;	2012	$cf::MAP{$self->path} = $self;
1628		2013
1629	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
1630	}	2015	}
1631		2016
		2017	=item $maps = cf::map::tmp_maps
		2018
		2019	Returns an arrayref with all map paths of currently instantiated and saved
		2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
		2025	[
		2026	map {
		2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
		2033	}
		2034
		2035	=item $maps = cf::map::random_maps
		2036
		2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
		2039
		2040	=cut
		2041
		2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
		2051	}
		2052
1632	=item cf::map::unique_maps	2053	=item cf::map::unique_maps
1633		2054
1634	Returns an arrayref of paths of all shared maps that have	2055	Returns an arrayref of paths of all shared maps that have
1635	instantiated unique items. May block.	2056	instantiated unique items. May block.
1636		2057
1637	=cut	2058	=cut
1638		2059
1639	sub unique_maps() {	2060	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2061	[
1641	or return;	2062	map {
1642
1643	my @paths;
1644
1645	for (@$files) {
1646	utf8::decode $_;	2063	utf8::decode $_;
1647	next if /\.pst$/;	2064	/\.map$/
1648	next unless /^$PATH_SEP/o;	2065	? normalise $_
1649		2066	: ()
1650	push @paths, cf::map::normalise $_;	2067	} @{ aio_readdir $UNIQUEDIR or [] }
1651	}	2068	]
1652
1653	\@paths
1654	}	2069	}
1655		2070
1656	package cf;	2071	package cf;
1657		2072
1658	=back	2073	=back
…		…
1704		2119
1705	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1706		2121
1707	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1708	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1709	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1710	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1711	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1712	}	2141	}
1713	}	2142	}
1714		2143
1715	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1716		2145
…		…
1764	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1765		2194
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		2196
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1770		2199
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1772	}	2201	}
1773		2202
1774	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1776		2207
1777	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1778		2209
1779	unless ($map) {	2210	unless ($map) {
1780	# restore original map position	2211	# restore original map position
…		…
1798	$map->load;	2229	$map->load;
1799	$map->load_diag;	2230	$map->load_diag;
1800		2231
1801	return unless $self->contr->active;	2232	return unless $self->contr->active;
1802	$self->activate_recursive;	2233	$self->activate_recursive;
		2234
		2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1804	}	2237	}
1805		2238
1806	cf::player->attach (
1807	on_logout => sub {
1808	my ($pl) = @_;
1809
1810	# abort map switching before logout
1811	if ($pl->ob->{_link_pos}) {
1812	cf::sync_job {
1813	$pl->ob->leave_link
1814	};
1815	}
1816	},
1817	on_login => sub {
1818	my ($pl) = @_;
1819
1820	# try to abort aborted map switching on player login :)
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837
1838	=item $player_object->goto ($path, $x, $y)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1839		2240
		2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
		2245
1840	=cut	2246	=cut
		2247
		2248	our $GOTOGEN;
1841		2249
1842	sub cf::object::player::goto {	2250	sub cf::object::player::goto {
1843	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1844		2255
1845	$self->enter_link;	2256	$self->enter_link;
1846		2257
1847	(async {	2258	(async {
1848	my $map = eval {	2259	my $map = eval {
1849	my $map = cf::map::find $path;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1850	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
		2264	$map = $check->($map) if $check && $map;
		2265	} else {
		2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
		2268
1851	$map	2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
1852	} or	2275	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1856	})->prio (1);	2281	})->prio (1);
1857	}	2282	}
1858		2283
1859	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1860		2285
…		…
1899		2324
1900	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1901		2326
1902	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1903	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2329	my $meta = "$RANDOMDIR/$md5.meta";
1905		2330
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2333	undef $fh;
1909	aio_rename "$meta~", $meta;	2334	aio_rename "$meta~", $meta;
…		…
1918		2343
1919	return unless $self->type == cf::PLAYER;	2344	return unless $self->type == cf::PLAYER;
1920		2345
1921	if ($exit->slaying eq "/!") {	2346	if ($exit->slaying eq "/!") {
1922	#TODO: this should de-fi-ni-te-ly not be a sync-job	2347	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2348	# the problem is that $exit might not survive long enough
		2349	# so it needs to be done right now, right here
1923	cf::sync_job { prepare_random_map $exit };	2350	cf::sync_job { prepare_random_map $exit };
1924	}	2351	}
1925		2352
1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2353	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927	my $hp = $exit->stats->hp;	2354	my $hp = $exit->stats->hp;
…		…
1935	$self->goto ($slaying, $hp, $sp);	2362	$self->goto ($slaying, $hp, $sp);
1936		2363
1937	1;	2364	1;
1938	}) {	2365	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2366	$self->message ("Something went wrong deep within the crossfire server. "
1940	. "I'll try to bring you back to the map you were before. "	2367	. "I'll try to bring you back to the map you were before. "
1941	. "Please report this to the dungeon master!",	2368	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2369	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2370
1944	warn "ERROR in enter_exit: $@";	2371	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2372	$self->leave_link;
1946	}	2373	}
1947	})->prio (1);	2374	})->prio (1);
…		…
1960		2387
1961	sub cf::client::send_drawinfo {	2388	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2389	my ($self, $text, $flags) = @_;
1963		2390
1964	utf8::encode $text;	2391	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2393	}
1967		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
		2433	=item $client->ext_event ($type, %msg)
		2434
		2435	Sends an ext event to the client.
		2436
		2437	=cut
		2438
		2439	sub cf::client::ext_event($$%) {
		2440	my ($self, $type, %msg) = @_;
		2441
		2442	$msg{msgtype} = "event_$type";
		2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2444	}
1968		2445
1969	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
1970		2447
1971	Queues a query to the client, calling the given callback with	2448	Queues a query to the client, calling the given callback with
1972	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2449	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1973	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1974		2451
1975	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
1976	reliable at some point in the future.	2453	become reliable at some point in the future.
1977		2454
1978	=cut	2455	=cut
1979		2456
1980	sub cf::client::query {	2457	sub cf::client::query {
1981	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
1989	utf8::encode $text;	2466	utf8::encode $text;
1990	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1991		2468
1992	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
1993	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
1994	}	2473	}
1995		2474
1996	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
1997	on_reply => sub {	2481	on_reply => sub {
1998	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
1999		2483
2000	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
2001	# get handled first	2485	# get handled first
2002	my $queue = delete $ns->{query_queue}	2486	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	2487	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		2488
2005	(shift @$queue)->[1]->($msg);	2489	(shift @$queue)->[1]->($msg);
		2490	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		2491
2007	push @{ $ns->{query_queue} }, @$queue;	2492	push @{ $ns->{query_queue} }, @$queue;
2008		2493
2009	if (@{ $ns->{query_queue} } == @$queue) {	2494	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	2495	if (@$queue) {
…		…
2012	} else {	2497	} else {
2013	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2014	}	2499	}
2015	}	2500	}
2016	},	2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
		2519	},
2017	);	2520	);
2018		2521
2019	=item $client->async (\&cb)	2522	=item $client->async (\&cb)
2020		2523
2021	Create a new coroutine, running the specified callback. The coroutine will	2524	Create a new coroutine, running the specified callback. The coroutine will
…		…
2068		2571
2069	# here we export the classes and methods available to script code	2572	# here we export the classes and methods available to script code
2070		2573
2071	=pod	2574	=pod
2072		2575
2073	The following fucntions and emthods are available within a safe environment:	2576	The following functions and methods are available within a safe environment:
2074		2577
2075	cf::object contr pay_amount pay_player map	2578	cf::object contr pay_amount pay_player map
2076	cf::object::player player	2579	cf::object::player player
2077	cf::player peaceful	2580	cf::player peaceful
2078	cf::map trigger	2581	cf::map trigger
…		…
2159	=back	2662	=back
2160		2663
2161	=cut	2664	=cut
2162		2665
2163	#############################################################################	2666	#############################################################################
		2667	# the server's init and main functions
2164		2668
2165	=head2 EXTENSION DATABASE SUPPORT	2669	sub load_facedata($) {
		2670	my ($path) = @_;
2166		2671
2167	Crossfire maintains a very simple database for extension use. It can	2672	warn "loading facedata from $path\n";
2168	currently store anything that can be serialised using Storable, which
2169	excludes objects.
2170		2673
2171	The parameter C<$family> should best start with the name of the extension	2674	my $facedata;
2172	using it, it should be unique.	2675	0 < aio_load $path, $facedata
		2676	or die "$path: $!";
2173		2677
2174	=over 4	2678	$facedata = Coro::Storable::thaw $facedata;
2175		2679
2176	=item $hashref = cf::db_get $family	2680	$facedata->{version} == 2
		2681	or cf::cleanup "$path: version mismatch, cannot proceed.";
2177		2682
2178	Return a hashref for use by the extension C<$family>, which can be
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181
2182	=item $value = cf::db_get $family => $key
2183
2184	Returns a single value from the database
2185
2186	=item cf::db_put $family => $hashref
2187
2188	Stores the given family hashref into the database. Updates are delayed, if
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203
2204	=cut
2205
2206	our $DB;
2207
2208	{
2209	my $path = cf::localdir . "/database.pst";
2210
2211	sub db_load() {
2212	$DB = stat $path ? Storable::retrieve $path : { };
2213	}	2683	{
		2684	my $faces = $facedata->{faceinfo};
2214		2685
2215	my $pid;	2686	while (my ($face, $info) = each %$faces) {
2216		2687	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2217	sub db_save() {	2688	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2218	waitpid $pid, 0 if $pid;	2689	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2219	if (0 == ($pid = fork)) {	2690	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2220	$DB->{_meta}{version} = 1;	2691	Coro::cede;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}
2225	}
2226
2227	my $dirty;
2228
2229	sub db_sync() {
2230	db_save if $dirty;
2231	undef $dirty;
2232	}
2233
2234	my $idle = Event->idle (
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {
2249	@_ >= 2
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253
2254	sub db_put($$;$) {
2255	if (@_ >= 3) {
2256	$DB->{$_[0]}{$_[1]} = $_[2];
2257	} else {
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262
2263	cf::global->attach (
2264	prio => 10000,
2265	on_cleanup => sub {
2266	db_sync;
2267	},	2692	}
2268	);
2269	}
2270		2693
2271	#############################################################################	2694	while (my ($face, $info) = each %$faces) {
2272	# the server's main()	2695	next unless $info->{smooth};
		2696	my $idx = cf::face::find $face
		2697	or next;
		2698	if (my $smooth = cf::face::find $info->{smooth}) {
		2699	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2700	} else {
		2701	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2702	}
		2703	Coro::cede;
		2704	}
		2705	}
		2706
		2707	{
		2708	my $anims = $facedata->{animinfo};
		2709
		2710	while (my ($anim, $info) = each %$anims) {
		2711	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2712	Coro::cede;
		2713	}
		2714
		2715	cf::anim::invalidate_all; # d'oh
		2716	}
		2717
		2718	1
		2719	}
		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
		2726	sub reload_facedata {
		2727	load_facedata "$DATADIR/facedata"
		2728	or die "unable to load facedata\n";
		2729	}
		2730
		2731	sub reload_archetypes {
		2732	load_resource_file "$DATADIR/archetypes"
		2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	}
		2740
		2741	sub reload_treasures {
		2742	load_resource_file "$DATADIR/treasures"
		2743	or die "unable to load treasurelists\n";
		2744	}
		2745
		2746	sub reload_resources {
		2747	warn "reloading resource files...\n";
		2748
		2749	reload_regions;
		2750	reload_facedata;
		2751	#reload_archetypes;#d#
		2752	reload_archetypes;
		2753	reload_treasures;
		2754
		2755	warn "finished reloading resource files\n";
		2756	}
		2757
		2758	sub init {
		2759	reload_resources;
		2760	}
2273		2761
2274	sub cfg_load {	2762	sub cfg_load {
2275	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	2764	or return;
2277		2765
2278	local $/;	2766	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2280		2768
…		…
2300	Event::one_event;	2788	Event::one_event;
2301	})->prio (Coro::PRIO_MAX);	2789	})->prio (Coro::PRIO_MAX);
2302	};	2790	};
2303		2791
2304	cfg_load;	2792	cfg_load;
2305	db_load;	2793	db_init;
2306	load_extensions;	2794	load_extensions;
2307		2795
2308	$TICK_WATCHER->start;	2796	$TICK_WATCHER->start;
2309	Event::loop;	2797	Event::loop;
2310	}	2798	}
…		…
2325	},	2813	},
2326	);	2814	);
2327	}	2815	}
2328	}	2816	}
2329		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
		2854	}
		2855
2330	sub emergency_save() {	2856	sub emergency_save() {
2331	my $freeze_guard = cf::freeze_mainloop;	2857	my $freeze_guard = cf::freeze_mainloop;
2332		2858
2333	warn "enter emergency perl save\n";	2859	warn "enter emergency perl save\n";
2334		2860
…		…
2349	my $map = $cf::MAP{$path} or next;	2875	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	2876	$map->valid or next;
2351	$map->save;	2877	$map->save;
2352	}	2878	}
2353	warn "end emergency map save\n";	2879	warn "end emergency map save\n";
		2880
		2881	warn "begin emergency database checkpoint\n";
		2882	BDB::db_env_txn_checkpoint $DB_ENV;
		2883	warn "end emergency database checkpoint\n";
2354	};	2884	};
2355		2885
2356	warn "leave emergency perl save\n";	2886	warn "leave emergency perl save\n";
2357	}	2887	}
2358		2888
		2889	sub post_cleanup {
		2890	my ($make_core) = @_;
		2891
		2892	warn Carp::longmess "post_cleanup backtrace"
		2893	if $make_core;
		2894	}
		2895
2359	sub reload() {	2896	sub do_reload_perl() {
2360	# can/must only be called in main	2897	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	2899	warn "can only reload from main coroutine";
2363	return;	2900	return;
2364	}	2901	}
2365		2902
2366	warn "reloading...";	2903	warn "reloading...";
2367		2904
2368	warn "cancelling server ticker";	2905	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		2906
		2907	cf::sync_job {
		2908	cf::write_runtime; # external watchdog should not bark
2371	cf::emergency_save;	2909	cf::emergency_save;
		2910	cf::write_runtime; # external watchdog should not bark
2372		2911
2373	eval {	2912	warn "syncing database to disk";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914
2374	# if anything goes wrong in here, we should simply crash as we already saved	2915	# if anything goes wrong in here, we should simply crash as we already saved
2375
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378		2916
2379	warn "cancelling all WF_AUTOCANCEL watchers";	2917	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {	2918	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;	2919	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}	2920	}
2383		2921
2384	warn "flushing outstanding aio requests";	2922	warn "flushing outstanding aio requests";
2385	for (;;) {	2923	for (;;) {
		2924	BDB::flush;
2386	IO::AIO::flush;	2925	IO::AIO::flush;
2387	Coro::cede;	2926	Coro::cede;
2388	last unless IO::AIO::nreqs;	2927	last unless IO::AIO::nreqs || BDB::nreqs;
2389	warn "iterate...";	2928	warn "iterate...";
2390	}	2929	}
		2930
		2931	++$RELOAD;
2391		2932
2392	warn "cancelling all extension coros";	2933	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;	2934	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();	2935	%EXT_CORO = ();
2395		2936
2396	warn "removing commands";	2937	warn "removing commands";
2397	%COMMAND = ();	2938	%COMMAND = ();
2398		2939
2399	warn "removing ext commands";	2940	warn "removing ext/exti commands";
2400	%EXTCMD = ();	2941	%EXTCMD = ();
		2942	%EXTICMD = ();
2401		2943
2402	warn "unloading/nuking all extensions";	2944	warn "unloading/nuking all extensions";
2403	for my $pkg (@EXTS) {	2945	for my $pkg (@EXTS) {
2404	warn "... unloading $pkg";	2946	warn "... unloading $pkg";
2405		2947
…		…
2435	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2436	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2437		2979
2438	warn "unloading cf.pm \"a bit\"";	2980	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2440		2983
2441	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2442	# and global variables created in xs	2985	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2444		2987
…		…
2448	require cf;	2991	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2992	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450		2993
2451	warn "loading config and database again";	2994	warn "loading config and database again";
2452	cf::cfg_load;	2995	cf::cfg_load;
2453	cf::db_load;
2454		2996
2455	warn "loading extensions";	2997	warn "loading extensions";
2456	cf::load_extensions;	2998	cf::load_extensions;
2457		2999
2458	warn "reattaching attachments to objects/players";	3000	warn "reattaching attachments to objects/players";
2459	_global_reattach;	3001	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	3002	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	3003	reattach $_ for values %MAP;
		3004	warn "reattaching attachments to players";
		3005	reattach $_ for values %PLAYER;
2462		3006
2463	warn "restarting server ticker";	3007	warn "leaving sync_job";
2464		3008
2465	$TICK_WATCHER->start;	3009	1
2466	};	3010	} or do {
2467
2468	if ($@) {
2469	warn $@;	3011	warn $@;
2470	warn "error while reloading, exiting.";	3012	warn "error while reloading, exiting.";
2471	exit 1;	3013	exit 1;
2472	}	3014	};
2473		3015
2474	warn "reloaded";	3016	warn "reloaded";
2475	};	3017	};
2476		3018
2477	our $RELOAD_WATCHER; # used only during reload	3019	our $RELOAD_WATCHER; # used only during reload
2478		3020
		3021	sub reload_perl() {
		3022	# doing reload synchronously and two reloads happen back-to-back,
		3023	# coro crashes during coro_state_free->destroy here.
		3024
		3025	$RELOAD_WATCHER ||= Event->timer (
		3026	reentrant => 0,
		3027	after => 0,
		3028	data => WF_AUTOCANCEL,
		3029	cb => sub {
		3030	do_reload_perl;
		3031	undef $RELOAD_WATCHER;
		3032	},
		3033	);
		3034	}
		3035
2479	register_command "reload" => sub {	3036	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2481		3038
2482	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	3040	$who->message ("reloading server.");
2484		3041	async { reload_perl };
2485	# doing reload synchronously and two reloads happen back-to-back,
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);
2497	}	3042	}
2498	};	3043	};
2499		3044
2500	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2501		3046
2502	my $bug_warning = 0;	3047	my $bug_warning = 0;
2503		3048
		3049	our @WAIT_FOR_TICK;
		3050	our @WAIT_FOR_TICK_BEGIN;
		3051
		3052	sub wait_for_tick {
		3053	return unless $TICK_WATCHER->is_active;
		3054	return if $Coro::current == $Coro::main;
		3055
		3056	my $signal = new Coro::Signal;
		3057	push @WAIT_FOR_TICK, $signal;
		3058	$signal->wait;
		3059	}
		3060
		3061	sub wait_for_tick_begin {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK_BEGIN, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2504	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2505	reentrant => 0,	3073	reentrant => 0,
2506	parked => 1,	3074	parked => 1,
2507	prio => 0,	3075	prio => 0,
2508	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
…		…
2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2513	unless ++$bug_warning > 10;	3081	unless ++$bug_warning > 10;
2514	return;	3082	return;
2515	}	3083	}
2516		3084
2517	$NOW = Event::time;	3085	$NOW = $tick_start = Event::time;
2518		3086
2519	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
		3111
2520	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2522		3114
2523	$WAIT_FOR_TICK->broadcast;	3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3116	$NEXT_RUNTIME_WRITE = $NOW + 10;
2525		3117	Coro::async_pool {
2526	Event::sweep;	3118	write_runtime
2527	Coro::cede_notself;	3119	or warn "ERROR: unable to write runtime file: $!";
		3120	};
2528		3121	}
		3122
2529	# my $AFTER = Event::time;	3123	# my $AFTER = Event::time;
2530	# warn $AFTER - $NOW;#d#	3124	# warn $AFTER - $NOW;#d#
2531		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
		3134
2532	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2534		3137
2535	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2536	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
		3140
		3141	$LOAD = ($NOW - $tick_start) / $TICK;
		3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3143
		3144	_post_tick;
		3145
		3146
2537	},	3147	},
2538	);	3148	);
2539		3149
		3150	{
		3151	BDB::max_poll_time $TICK * 0.1;
		3152	$BDB_POLL_WATCHER = Event->io (
		3153	reentrant => 0,
		3154	fd => BDB::poll_fileno,
		3155	poll => 'r',
		3156	prio => 0,
		3157	data => WF_AUTOCANCEL,
		3158	cb => \&BDB::poll_cb,
		3159	);
		3160	BDB::min_parallel 8;
		3161
		3162	BDB::set_sync_prepare {
		3163	my $status;
		3164	my $current = $Coro::current;
		3165	(
		3166	sub {
		3167	$status = $!;
		3168	$current->ready; undef $current;
		3169	},
		3170	sub {
		3171	Coro::schedule while defined $current;
		3172	$! = $status;
		3173	},
		3174	)
		3175	};
		3176
		3177	unless ($DB_ENV) {
		3178	$DB_ENV = BDB::db_env_create;
		3179
		3180	cf::sync_job {
		3181	eval {
		3182	BDB::db_env_open
		3183	$DB_ENV,
		3184	$BDBDIR,
		3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3187	0666;
		3188
		3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3190
		3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3192	$DB_ENV->set_lk_detect;
		3193	};
		3194
		3195	cf::cleanup "db_env_open(db): $@" if $@;
		3196	};
		3197	}
		3198	}
		3199
		3200	{
		3201	IO::AIO::min_parallel 8;
		3202
		3203	undef $Coro::AIO::WATCHER;
2540	IO::AIO::max_poll_time $TICK * 0.1;	3204	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (	3205	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,	3206	reentrant => 0,
		3207	data => WF_AUTOCANCEL,
2545	fd => IO::AIO::poll_fileno,	3208	fd => IO::AIO::poll_fileno,
2546	poll => 'r',	3209	poll => 'r',
2547	prio => 6,	3210	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,	3211	cb => \&IO::AIO::poll_cb,
2550	);	3212	);
		3213	}
2551		3214
2552	$WRITE_RUNTIME_WATCHER = Event->timer (	3215	my $_log_backtrace;
2553	reentrant => 0,	3216
2554	data => WF_AUTOCANCEL,	3217	sub _log_backtrace {
2555	after => 1,	3218	my ($msg, @addr) = @_;
2556	interval => 10,	3219
2557	prio => 6, # keep it lowest so it acts like a watchdog	3220	$msg =~ s/\n//;
2558	cb => Coro::unblock_sub {	3221
2559	write_runtime	3222	# limit the # of concurrent backtraces
2560	or warn "ERROR: unable to write runtime file: $!";	3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
		3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
2561	},	3250	}
2562	);	3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
2563		3255
2564	END { cf::emergency_save }	3256	END { cf::emergency_save }
2565		3257
2566	1	3258	1
2567		3259

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