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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.104 by root, Sat Dec 30 16:56:16 2006 UTC vs.
Revision 1.352 by root, Sun Sep 2 04:57:14 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 3.3;	15	use Coro 3.64 ();
		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;
		22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
18		25
19	use IO::AIO 2.3;	26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
20	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
21	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
22		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
24		44
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
27		47
28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		49
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		51
32	our %COMMAND = ();	52	our %COMMAND = ();
33	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
35		60
		61	our $RELOAD; # number of reloads so far
36	our @EVENT;	62	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		63
39	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	80	our $NEXT_TICK;
42	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
43		86
44	our %CFG;	87	our %CFG;
45		88
46	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
47	our $RUNTIME;	90	our $RUNTIME;
48		91
		92	our %PLAYER; # all users
49	our %MAP; # all maps	93	our %MAP; # all maps
50	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
51	our $FREEZE;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
52		102
53	binmode STDOUT;	103	binmode STDOUT;
54	binmode STDERR;	104	binmode STDERR;
55		105
56	# read virtual server time, if available	106	# read virtual server time, if available
57	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
58	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
59	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
60	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
61	}	111	}
62		112
63	mkdir cf::localdir;	113	mkdir $_
64	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
65	mkdir cf::localdir . "/" . cf::tmpdir;
66	mkdir cf::localdir . "/" . cf::uniquedir;
67		115
68	our %EXT_CORO;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
69		119
70	#############################################################################	120	#############################################################################
71		121
72	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
73		123
…		…
80	=item $cf::RUNTIME	130	=item $cf::RUNTIME
81		131
82	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
83	every server tick.	133	every server tick.
84		134
85	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
86		138
87	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
88	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
89		143
90	=item $cf::NOW	144	=item $cf::NOW
91		145
92	The time of the last (current) server tick.	146	The time of the last (current) server tick.
93		147
94	=item $cf::TICK	148	=item $cf::TICK
95		149
96	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
97		161
98	=item %cf::CFG	162	=item %cf::CFG
99		163
100	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
101	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
102		178
103	=back	179	=back
104		180
105	=cut	181	=cut
106		182
107	BEGIN {	183	BEGIN {
108	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
109	my $msg = join "", @_;	185	my $msg = join "", @_;
110	utf8::encode $msg;
111		186
112	$msg .= "\n"	187	$msg .= "\n"
113	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
114		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
115	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
116	};	194	};
117	}	195	}
118		196
119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
121	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
122	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
123	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
124	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
125		204
126	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
127	# within the Safe compartment.	206	# within the Safe compartment.
128	for my $pkg (qw(	207	for my $pkg (qw(
129	cf::global cf::attachable	208	cf::global cf::attachable
…		…
138		217
139	$Event::DIED = sub {	218	$Event::DIED = sub {
140	warn "error in event callback: @_";	219	warn "error in event callback: @_";
141	};	220	};
142		221
143	my %ext_pkg;	222	#############################################################################
144	my @exts;
145	my @hook;
146		223
147	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
148		225
149	=over 4	226	=over 4
150		227
151	=cut	228	=item dumpval $ref
152		229
153	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
154		250
155	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
156		252
157	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
158		254
159	=cut
160
161	sub from_json($) {
162	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
163	JSON::Syck::Load $_[0]
164	}
165
166	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
167		256
168	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
169		258
170	=cut	259	=cut
171		260
172	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
174	JSON::Syck::Dump $_[0]
175	}
176		262
		263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
		280	Lock names should begin with a unique identifier (for example, cf::map::find
		281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
		287	=cut
		288
		289	our %LOCK;
		290
		291	sub lock_wait($) {
		292	my ($key) = @_;
		293
		294	# wait for lock, if any
		295	while ($LOCK{$key}) {
		296	push @{ $LOCK{$key} }, $Coro::current;
		297	Coro::schedule;
		298	}
		299	}
		300
		301	sub lock_acquire($) {
		302	my ($key) = @_;
		303
		304	# wait, to be sure we are not locked
		305	lock_wait $key;
		306
		307	$LOCK{$key} = [];
		308
		309	Coro::guard {
		310	# wake up all waiters, to be on the safe side
		311	$_->ready for @{ delete $LOCK{$key} };
		312	}
		313	}
		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
		387	=item cf::async { BLOCK }
		388
		389	Currently the same as Coro::async_pool, meaning you cannot use
		390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		391	thing you are allowed to do is call C<prio> on it.
		392
		393	=cut
		394
		395	BEGIN { *async = \&Coro::async_pool }
		396
		397	=item cf::sync_job { BLOCK }
		398
		399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		400	is always able to handle events or runnable, as Crossfire TRT is only
		401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
		403
		404	If it must be done, put the blocking parts into C<sync_job>. This will run
		405	the given BLOCK in another coroutine while waiting for the result. The
		406	server will be frozen during this time, so the block should either finish
		407	fast or be very important.
		408
		409	=cut
		410
		411	sub sync_job(&) {
		412	my ($job) = @_;
		413
		414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
		417	# this is the main coro, too bad, we have to block
		418	# till the operation succeeds, freezing the server :/
		419
		420	# TODO: use suspend/resume instead
		421	# (but this is cancel-safe)
		422	my $freeze_guard = freeze_mainloop;
		423
		424	my $busy = 1;
		425	my @res;
		426
		427	(async {
		428	@res = eval { $job->() };
		429	warn $@ if $@;
		430	undef $busy;
		431	})->prio (Coro::PRIO_MAX);
		432
		433	while ($busy) {
		434	Coro::cede or Event::one_event;
		435	}
		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
		443
		444	wantarray ? @res : $res[0]
		445	} else {
		446	# we are in another coroutine, how wonderful, everything just works
		447
		448	$job->()
		449	}
		450	}
		451
177	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
178		453
179	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
180	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
181		456
182	=cut	457	=cut
183		458
184	sub coro(&) {	459	sub async_ext(&) {
185	my $cb = shift;	460	my $cb = shift;
186		461
187	my $coro; $coro = async {	462	my $coro = &Coro::async ($cb);
188	eval {
189	$cb->();
190	};
191	warn $@ if $@;
192	};
193		463
194	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
195	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
196	});	466	});
197	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
198		468
199	$coro	469	$coro
200	}	470	}
201		471
		472	=item fork_call { }, $args
		473
		474	Executes the given code block with the given arguments in a seperate
		475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
		478
		479	=cut
		480
		481	sub fork_call(&@) {
		482	my ($cb, @args) = @_;
		483
		484	# we seemingly have to make a local copy of the whole thing,
		485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
		487
		488	my @res = Coro::Util::fork_eval {
		489	reset_signals;
		490	&$cb
		491	}, @args;
		492
		493	wantarray ? @res : $res[-1]
		494	}
		495
		496	=item $value = cf::db_get $family => $key
		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
		523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
		610	}
		611
		612	=item cf::datalog type => key => value, ...
		613
		614	Log a datalog packet of the given type with the given key-value pairs.
		615
		616	=cut
		617
		618	sub datalog($@) {
		619	my ($type, %kv) = @_;
		620	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		621	}
		622
202	=back	623	=back
203		624
204	=cut	625	=cut
205		626
206	#############################################################################	627	#############################################################################
…		…
211	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
212	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
213		634
214	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
215	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
216	crossfire+).	637	Crossfire TRT).
217		638
218	=over 4	639	=over 4
219		640
220	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
221		642
…		…
335	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
336	our @CB_MAP = ();	757	our @CB_MAP = ();
337		758
338	my %attachment;	759	my %attachment;
339		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
340	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
341	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
342		769
343	use sort 'stable';	770	use sort 'stable';
344		771
…		…
378	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
379		806
380	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
381	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
382	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
383	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
384		811
385	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
386	my $pkg = shift @arg;	813	my $pkg = shift @arg;
387		814
388	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
417	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
418	}	845	}
419		846
420	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
421	} else {	848	} else {
422	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
423	}	850	}
424		851
425	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
426	}	853	}
427		854
…		…
429	if (ref $_[0]) {	856	if (ref $_[0]) {
430	_object_attach @_;	857	_object_attach @_;
431	} else {	858	} else {
432	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
433	}	860	}
		861	_recalc_want;
434	};	862	};
435		863
436	# all those should be optimised	864	# all those should be optimised
437	sub cf::attachable::detach {	865	sub cf::attachable::detach {
438	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
441	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
442	reattach ($obj);	870	reattach ($obj);
443	} else {	871	} else {
444	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
445	}	873	}
		874	_recalc_want;
446	};	875	};
447		876
448	sub cf::attachable::attached {	877	sub cf::attachable::attached {
449	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
450		879
…		…
465	";	894	";
466	die if $@;	895	die if $@;
467	}	896	}
468		897
469	our $override;	898	our $override;
470	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
471		900
472	sub override {	901	sub override {
473	$override = 1;	902	$override = 1;
474	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
475	}	904	}
476		905
477	sub do_invoke {	906	sub do_invoke {
478	my $event = shift;	907	my $event = shift;
479	my $callbacks = shift;	908	my $callbacks = shift;
480		909
481	@invoke_results = ();	910	@INVOKE_RESULTS = ();
482		911
483	local $override;	912	local $override;
484		913
485	for (@$callbacks) {	914	for (@$callbacks) {
486	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
503		932
504	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
505		934
506	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
507	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
508	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
509		938
510	=back	939	=back
511		940
512	=cut	941	=cut
513		942
514	#############################################################################	943	#############################################################################
515	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
516		956
517	sub reattach {	957	sub reattach {
518	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
519	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
520		962
521	my $registry = $obj->registry;	963	my $registry = $obj->registry;
522		964
523	@$registry = ();	965	@$registry = ();
524		966
…		…
563	);	1005	);
564		1006
565	sub object_freezer_save {	1007	sub object_freezer_save {
566	my ($filename, $rdata, $objs) = @_;	1008	my ($filename, $rdata, $objs) = @_;
567		1009
		1010	sync_job {
568	if (length $$rdata) {	1011	if (length $$rdata) {
569	warn sprintf "saving %s (%d,%d)\n",	1012	warn sprintf "saving %s (%d,%d)\n",
570	$filename, length $$rdata, scalar @$objs;	1013	$filename, length $$rdata, scalar @$objs;
571		1014
572	if (open my $fh, ">:raw", "$filename~") {	1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
573	chmod SAVE_MODE, $fh;
574	syswrite $fh, $$rdata;
575	close $fh;
576
577	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
578	chmod SAVE_MODE, $fh;	1016	chmod SAVE_MODE, $fh;
579	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1018	aio_fsync $fh if $cf::USE_FSYNC;
580	close $fh;	1019	close $fh;
		1020
		1021	if (@$objs) {
		1022	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1023	chmod SAVE_MODE, $fh;
		1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1025	aio_write $fh, 0, (length $data), $data, 0;
		1026	aio_fsync $fh if $cf::USE_FSYNC;
		1027	close $fh;
581	rename "$filename.pst~", "$filename.pst";	1028	aio_rename "$filename.pst~", "$filename.pst";
		1029	}
		1030	} else {
		1031	aio_unlink "$filename.pst";
		1032	}
		1033
		1034	aio_rename "$filename~", $filename;
582	} else {	1035	} else {
583	unlink "$filename.pst";	1036	warn "FATAL: $filename~: $!\n";
584	}	1037	}
585
586	rename "$filename~", $filename;
587	} else {	1038	} else {
588	warn "FATAL: $filename~: $!\n";
589	}
590	} else {
591	unlink $filename;	1039	aio_unlink $filename;
592	unlink "$filename.pst";	1040	aio_unlink "$filename.pst";
		1041	}
593	}	1042	}
594	}	1043	}
595		1044
596	sub object_freezer_as_string {	1045	sub object_freezer_as_string {
597	my ($rdata, $objs) = @_;	1046	my ($rdata, $objs) = @_;
…		…
602	}	1051	}
603		1052
604	sub object_thawer_load {	1053	sub object_thawer_load {
605	my ($filename) = @_;	1054	my ($filename) = @_;
606		1055
607	local $/;	1056	my ($data, $av);
608		1057
609	my $av;	1058	(aio_load $filename, $data) >= 0
		1059	or return;
610		1060
611	#TODO: use sysread etc.	1061	unless (aio_stat "$filename.pst") {
612	if (open my $data, "<:raw:perlio", $filename) {	1062	(aio_load "$filename.pst", $av) >= 0
613	$data = <$data>;	1063	or return;
614	if (open my $pst, "<:raw:perlio", "$filename.pst") {
615	$av = eval { (Storable::thaw <$pst>)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
616	}	1065	}
		1066
		1067	warn sprintf "loading %s (%d)\n",
		1068	$filename, length $data, scalar @{$av || []};
617	return ($data, $av);	1069	return ($data, $av);
618	}
619
620	()
621	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
622		1077
623	#############################################################################	1078	#############################################################################
624	# command handling &c	1079	# command handling &c
625		1080
626	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
639	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
640	}	1095	}
641		1096
642	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
643		1098
644	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
645		1104
646	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
647	called.	1106	called.
648		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
649	=cut	1119	=cut
650		1120
651	sub register_extcmd {	1121	sub register_extcmd {
652	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
653		1123
654	my $caller = caller;
655	#warn "registering extcmd '$name' to '$caller'";
656
657	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
658	}	1131	}
659		1132
660	cf::player->attach (	1133	cf::player->attach (
661	on_command => sub {	1134	on_command => sub {
662	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
671	cf::override;	1144	cf::override;
672	},	1145	},
673	on_extcmd => sub {	1146	on_extcmd => sub {
674	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
675		1148
676	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
677		1150
678	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
680	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
681	$pl->ext_reply ($msg->{msgid}, %reply);
682	}
683	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
684	} else {	1166	} else {
685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
686	}	1168	}
687		1169
688	cf::override;	1170	cf::override;
689	},	1171	},
690	);	1172	);
691		1173
		1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
		1178	for my $path (<$LIBDIR/*.ext>) {
		1179	next unless -r $path;
		1180
		1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
		1238	}
		1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
		1244	};
		1245	}
		1246
		1247	#############################################################################
		1248
		1249	=back
		1250
		1251	=head2 CORE EXTENSIONS
		1252
		1253	Functions and methods that extend core crossfire objects.
		1254
		1255	=cut
		1256
		1257	package cf::player;
		1258
		1259	use Coro::AIO;
		1260
		1261	=head3 cf::player
		1262
		1263	=over 4
		1264
		1265	=item cf::player::find $login
		1266
		1267	Returns the given player object, loading it if necessary (might block).
		1268
		1269	=cut
		1270
		1271	sub playerdir($) {
		1272	"$PLAYERDIR/"
		1273	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1274	}
		1275
		1276	sub path($) {
		1277	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1278
		1279	(playerdir $login) . "/playerdata"
		1280	}
		1281
		1282	sub find_active($) {
		1283	$cf::PLAYER{$_[0]}
		1284	and $cf::PLAYER{$_[0]}->active
		1285	and $cf::PLAYER{$_[0]}
		1286	}
		1287
		1288	sub exists($) {
		1289	my ($login) = @_;
		1290
		1291	$cf::PLAYER{$login}
		1292	or cf::sync_job { !aio_stat path $login }
		1293	}
		1294
		1295	sub find($) {
		1296	return $cf::PLAYER{$_[0]} || do {
		1297	my $login = $_[0];
		1298
		1299	my $guard = cf::lock_acquire "user_find:$login";
		1300
		1301	$cf::PLAYER{$_[0]} || do {
		1302	# rename old playerfiles to new ones
		1303	#TODO: remove when no longer required
		1304	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1305	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1306	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1307	aio_unlink +(playerdir $login) . "/$login.pl";
		1308
		1309	my $pl = load_pl path $login
		1310	or return;
		1311	$cf::PLAYER{$login} = $pl
		1312	}
		1313	}
		1314	}
		1315
		1316	sub save($) {
		1317	my ($pl) = @_;
		1318
		1319	return if $pl->{deny_save};
		1320
		1321	my $path = path $pl;
		1322	my $guard = cf::lock_acquire "user_save:$path";
		1323
		1324	return if $pl->{deny_save};
		1325
		1326	aio_mkdir playerdir $pl, 0770;
		1327	$pl->{last_save} = $cf::RUNTIME;
		1328
		1329	$pl->save_pl ($path);
		1330	cf::cede_to_tick;
		1331	}
		1332
		1333	sub new($) {
		1334	my ($login) = @_;
		1335
		1336	my $self = create;
		1337
		1338	$self->ob->name ($login);
		1339	$self->{deny_save} = 1;
		1340
		1341	$cf::PLAYER{$login} = $self;
		1342
		1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
		1354	}
		1355
		1356	=item $pl->quit_character
		1357
		1358	Nukes the player without looking back. If logged in, the connection will
		1359	be destroyed. May block for a long time.
		1360
		1361	=cut
		1362
		1363	sub quit_character {
		1364	my ($pl) = @_;
		1365
		1366	my $name = $pl->ob->name;
		1367
		1368	$pl->{deny_save} = 1;
		1369	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1370
		1371	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1372	$pl->deactivate;
		1373	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1374	$pl->ns->destroy if $pl->ns;
		1375
		1376	my $path = playerdir $pl;
		1377	my $temp = "$path~$cf::RUNTIME~deleting~";
		1378	aio_rename $path, $temp;
		1379	delete $cf::PLAYER{$pl->ob->name};
		1380	$pl->destroy;
		1381
		1382	my $prefix = qr<^~\Q$name\E/>;
		1383
		1384	# nuke player maps
		1385	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1386
		1387	IO::AIO::aio_rmtree $temp;
		1388	}
		1389
		1390	=item $pl->kick
		1391
		1392	Kicks a player out of the game. This destroys the connection.
		1393
		1394	=cut
		1395
		1396	sub kick {
		1397	my ($pl, $kicker) = @_;
		1398
		1399	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1400	$pl->killer ("kicked");
		1401	$pl->ns->destroy;
		1402	}
		1403
		1404	=item cf::player::list_logins
		1405
		1406	Returns am arrayref of all valid playernames in the system, can take a
		1407	while and may block, so not sync_job-capable, ever.
		1408
		1409	=cut
		1410
		1411	sub list_logins {
		1412	my $dirs = aio_readdir $PLAYERDIR
		1413	or return [];
		1414
		1415	my @logins;
		1416
		1417	for my $login (@$dirs) {
		1418	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1419	aio_read $fh, 0, 512, my $buf, 0 or next;
		1420	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1421
		1422	utf8::decode $login;
		1423	push @logins, $login;
		1424	}
		1425
		1426	\@logins
		1427	}
		1428
		1429	=item $player->maps
		1430
		1431	Returns an arrayref of map paths that are private for this
		1432	player. May block.
		1433
		1434	=cut
		1435
		1436	sub maps($) {
		1437	my ($pl) = @_;
		1438
		1439	$pl = ref $pl ? $pl->ob->name : $pl;
		1440
		1441	my $files = aio_readdir playerdir $pl
		1442	or return;
		1443
		1444	my @paths;
		1445
		1446	for (@$files) {
		1447	utf8::decode $_;
		1448	next if /\.(?:pl|pst)$/;
		1449	next unless /^$PATH_SEP/o;
		1450
		1451	push @paths, cf::map::normalise "~$pl/$_";
		1452	}
		1453
		1454	\@paths
		1455	}
		1456
		1457	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1458
		1459	Expand crossfire pod fragments into protocol xml.
		1460
		1461	=cut
		1462
		1463	sub expand_cfpod {
		1464	((my $self), (local $_)) = @_;
		1465
		1466	# escape & and <
		1467	s/&/&amp;/g;
		1468	s/(?<![BIUGHT])</&lt;/g;
		1469
		1470	# this is buggy, it needs to properly take care of nested <'s
		1471
		1472	1 while
		1473	# replace B<>, I<>, U<> etc.
		1474	s/B<([^\>]*)>/<b>$1<\/b>/
		1475	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1476	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1477	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1478	# replace G<male|female> tags
		1479	|| s{G<([^>|]*)\|([^>]*)>}{
		1480	$self->gender ? $2 : $1
		1481	}ge
		1482	# replace H<hint text>
		1483	|| s{H<([^\>]*)>}
		1484	{
		1485	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1486	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1487	"")
		1488	[$self->{hintmode}]
		1489	}ge;
		1490
		1491	# create single paragraphs (very hackish)
		1492	s/(?<=\S)\n(?=\w)/ /g;
		1493
		1494	# compress some whitespace
		1495	s/\s+\n/\n/g; # ws line-ends
		1496	s/\n\n+/\n/g; # double lines
		1497	s/^\n+//; # beginning lines
		1498	s/\n+$//; # ending lines
		1499
		1500	$_
		1501	}
		1502
		1503	sub hintmode {
		1504	$_[0]{hintmode} = $_[1] if @_ > 1;
		1505	$_[0]{hintmode}
		1506	}
		1507
		1508	=item $player->ext_reply ($msgid, @msg)
		1509
		1510	Sends an ext reply to the player.
		1511
		1512	=cut
		1513
		1514	sub ext_reply($$@) {
		1515	my ($self, $id, @msg) = @_;
		1516
		1517	$self->ns->ext_reply ($id, @msg)
		1518	}
		1519
		1520	=item $player->ext_msg ($type, @msg)
		1521
		1522	Sends an ext event to the client.
		1523
		1524	=cut
		1525
		1526	sub ext_msg($$@) {
		1527	my ($self, $type, @msg) = @_;
		1528
		1529	$self->ns->ext_msg ($type, @msg);
		1530	}
		1531
		1532	=head3 cf::region
		1533
		1534	=over 4
		1535
		1536	=cut
		1537
		1538	package cf::region;
		1539
		1540	=item cf::region::find_by_path $path
		1541
		1542	Tries to decuce the likely region for a map knowing only its path.
		1543
		1544	=cut
		1545
		1546	sub find_by_path($) {
		1547	my ($path) = @_;
		1548
		1549	my ($match, $specificity);
		1550
		1551	for my $region (list) {
		1552	if ($region->{match} && $path =~ $region->{match}) {
		1553	($match, $specificity) = ($region, $region->specificity)
		1554	if $region->specificity > $specificity;
		1555	}
		1556	}
		1557
		1558	$match
		1559	}
		1560
		1561	=back
		1562
		1563	=head3 cf::map
		1564
		1565	=over 4
		1566
		1567	=cut
		1568
		1569	package cf::map;
		1570
		1571	use Fcntl;
		1572	use Coro::AIO;
		1573
		1574	use overload
		1575	'""' => \&as_string,
		1576	fallback => 1;
		1577
		1578	our $MAX_RESET = 3600;
		1579	our $DEFAULT_RESET = 3000;
		1580
		1581	sub generate_random_map {
		1582	my ($self, $rmp) = @_;
		1583	# mit "rum" bekleckern, nicht
		1584	$self->_create_random_map (
		1585	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1586	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1587	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1588	$rmp->{exit_on_final_map},
		1589	$rmp->{xsize}, $rmp->{ysize},
		1590	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1591	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1592	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1593	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1594	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1595	(cf::region::find $rmp->{region}), $rmp->{custom}
		1596	)
		1597	}
		1598
		1599	=item cf::map->register ($regex, $prio)
		1600
		1601	Register a handler for the map path matching the given regex at the
		1602	givne priority (higher is better, built-in handlers have priority 0, the
		1603	default).
		1604
		1605	=cut
		1606
692	sub register {	1607	sub register {
		1608	my (undef, $regex, $prio) = @_;
		1609	my $pkg = caller;
		1610
		1611	no strict;
		1612	push @{"$pkg\::ISA"}, __PACKAGE__;
		1613
		1614	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1615	}
		1616
		1617	# also paths starting with '/'
		1618	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1619
		1620	sub thawer_merge {
693	my ($base, $pkg) = @_;	1621	my ($self, $merge) = @_;
694		1622
695	#TODO	1623	# we have to keep some variables in memory intact
696	}	1624	local $self->{path};
		1625	local $self->{load_path};
697		1626
698	sub load_extension {	1627	$self->SUPER::thawer_merge ($merge);
		1628	}
		1629
		1630	sub normalise {
699	my ($path) = @_;	1631	my ($path, $base) = @_;
700		1632
701	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1633	$path = "$path"; # make sure its a string
702	my $base = $1;
703	my $pkg = $1;
704	$pkg =~ s/[^[:word:]]/_/g;
705	$pkg = "ext::$pkg";
706		1634
707	warn "loading '$path' into '$pkg'\n";	1635	$path =~ s/\.map$//;
708		1636
709	open my $fh, "<:utf8", $path	1637	# map plan:
710	or die "$path: $!";	1638	#
		1639	# /! non-realised random map exit (special hack!)
		1640	# {... are special paths that are not being touched
		1641	# ?xxx/... are special absolute paths
		1642	# ?random/... random maps
		1643	# /... normal maps
		1644	# ~user/... per-player map of a specific user
711		1645
712	my $source =	1646	$path =~ s/$PATH_SEP/\//go;
713	"package $pkg; use strict; use utf8;\n"
714	. "#line 1 \"$path\"\n{\n"
715	. (do { local $/; <$fh> })
716	. "\n};\n1";
717		1647
718	eval $source	1648	# treat it as relative path if it starts with
719	or die $@ ? "$path: $@\n"	1649	# something that looks reasonable
720	: "extension disabled.\n";	1650	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1651	$base or Carp::carp "normalise called with relative path and no base: '$path'";
721		1652
722	push @exts, $pkg;	1653	$base =~ s{[^/]+/?$}{};
723	$ext_pkg{$base} = $pkg;	1654	$path = "$base/$path";
724
725	# no strict 'refs';
726	# @{"$pkg\::ISA"} = ext::;
727
728	register $base, $pkg;
729	}
730
731	sub unload_extension {
732	my ($pkg) = @_;
733
734	warn "removing extension $pkg\n";
735
736	# remove hooks
737	#TODO
738	# for my $idx (0 .. $#PLUGIN_EVENT) {
739	# delete $hook[$idx]{$pkg};
740	# }	1655	}
741		1656
742	# remove commands	1657	for ($path) {
743	for my $name (keys %COMMAND) {	1658	redo if s{//}{/};
744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1659	redo if s{/\.?/}{/};
		1660	redo if s{/[^/]+/\.\./}{/};
		1661	}
745		1662
746	if (@cb) {	1663	$path
747	$COMMAND{$name} = \@cb;	1664	}
		1665
		1666	sub new_from_path {
		1667	my (undef, $path, $base) = @_;
		1668
		1669	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1670
		1671	$path = normalise $path, $base;
		1672
		1673	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1674	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1675	my $self = bless cf::map::new, $pkg;
		1676	$self->{path} = $path; $self->path ($path);
		1677	$self->init; # pass $1 etc.
		1678	return $self;
		1679	}
		1680	}
		1681
		1682	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1683	()
		1684	}
		1685
		1686	sub init {
		1687	my ($self) = @_;
		1688
		1689	$self
		1690	}
		1691
		1692	sub as_string {
		1693	my ($self) = @_;
		1694
		1695	"$self->{path}"
		1696	}
		1697
		1698	# the displayed name, this is a one way mapping
		1699	sub visible_name {
		1700	&as_string
		1701	}
		1702
		1703	# the original (read-only) location
		1704	sub load_path {
		1705	my ($self) = @_;
		1706
		1707	"$MAPDIR/$self->{path}.map"
		1708	}
		1709
		1710	# the temporary/swap location
		1711	sub save_path {
		1712	my ($self) = @_;
		1713
		1714	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1715	"$TMPDIR/$path.map"
		1716	}
		1717
		1718	# the unique path, undef == no special unique path
		1719	sub uniq_path {
		1720	my ($self) = @_;
		1721
		1722	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1723	"$UNIQUEDIR/$path"
		1724	}
		1725
		1726	# and all this just because we cannot iterate over
		1727	# all maps in C++...
		1728	sub change_all_map_light {
		1729	my ($change) = @_;
		1730
		1731	$_->change_map_light ($change)
		1732	for grep $_->outdoor, values %cf::MAP;
		1733	}
		1734
		1735	sub decay_objects {
		1736	my ($self) = @_;
		1737
		1738	return if $self->{deny_reset};
		1739
		1740	$self->do_decay_objects;
		1741	}
		1742
		1743	sub unlink_save {
		1744	my ($self) = @_;
		1745
		1746	utf8::encode (my $save = $self->save_path);
		1747	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1748	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1749	}
		1750
		1751	sub load_header_from($) {
		1752	my ($self, $path) = @_;
		1753
		1754	utf8::encode $path;
		1755	#aio_open $path, O_RDONLY, 0
		1756	# or return;
		1757
		1758	$self->_load_header ($path)
		1759	or return;
		1760
		1761	$self->{load_path} = $path;
		1762
		1763	1
		1764	}
		1765
		1766	sub load_header_orig {
		1767	my ($self) = @_;
		1768
		1769	$self->load_header_from ($self->load_path)
		1770	}
		1771
		1772	sub load_header_temp {
		1773	my ($self) = @_;
		1774
		1775	$self->load_header_from ($self->save_path)
		1776	}
		1777
		1778	sub prepare_temp {
		1779	my ($self) = @_;
		1780
		1781	$self->last_access ((delete $self->{last_access})
		1782	|| $cf::RUNTIME); #d#
		1783	# safety
		1784	$self->{instantiate_time} = $cf::RUNTIME
		1785	if $self->{instantiate_time} > $cf::RUNTIME;
		1786	}
		1787
		1788	sub prepare_orig {
		1789	my ($self) = @_;
		1790
		1791	$self->{load_original} = 1;
		1792	$self->{instantiate_time} = $cf::RUNTIME;
		1793	$self->last_access ($cf::RUNTIME);
		1794	$self->instantiate;
		1795	}
		1796
		1797	sub load_header {
		1798	my ($self) = @_;
		1799
		1800	if ($self->load_header_temp) {
		1801	$self->prepare_temp;
748	} else {	1802	} else {
749	delete $COMMAND{$name};	1803	$self->load_header_orig
750	}	1804	or return;
		1805	$self->prepare_orig;
		1806	}
		1807
		1808	$self->{deny_reset} = 1
		1809	if $self->no_reset;
		1810
		1811	$self->default_region (cf::region::find_by_path $self->{path})
		1812	unless $self->default_region;
		1813
751	}	1814	1
		1815	}
752		1816
753	# remove extcmds	1817	sub find;
754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1818	sub find {
755	delete $EXTCMD{$name};	1819	my ($path, $origin) = @_;
		1820
		1821	$path = normalise $path, $origin && $origin->path;
		1822
		1823	cf::lock_wait "map_find:$path";
		1824
		1825	$cf::MAP{$path} || do {
		1826	my $guard = cf::lock_acquire "map_find:$path";
		1827	my $map = new_from_path cf::map $path
		1828	or return;
		1829
		1830	$map->{last_save} = $cf::RUNTIME;
		1831
		1832	$map->load_header
		1833	or return;
		1834
		1835	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1836	# doing this can freeze the server in a sync job, obviously
		1837	#$cf::WAIT_FOR_TICK->wait;
		1838	$map->reset;
		1839	undef $guard;
		1840	return find $path;
		1841	}
		1842
		1843	$cf::MAP{$path} = $map
		1844	}
		1845	}
		1846
		1847	sub pre_load { }
		1848	sub post_load { }
		1849
		1850	sub load {
		1851	my ($self) = @_;
		1852
		1853	local $self->{deny_reset} = 1; # loading can take a long time
		1854
		1855	my $path = $self->{path};
		1856
756	}	1857	{
		1858	my $guard1 = cf::lock_acquire "map_data:$path";
		1859	my $guard2 = cf::lock_acquire "map_load:$path";
757		1860
758	if (my $cb = $pkg->can ("unload")) {	1861	return if $self->in_memory != cf::MAP_SWAPPED;
759	eval {	1862
760	$cb->($pkg);	1863	$self->in_memory (cf::MAP_LOADING);
		1864
		1865	$self->alloc;
		1866
		1867	$self->pre_load;
		1868	cf::cede_to_tick;
		1869
		1870	$self->_load_objects ($self->{load_path}, 1)
		1871	or return;
		1872
		1873	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1874	if delete $self->{load_original};
		1875
		1876	if (my $uniq = $self->uniq_path) {
		1877	utf8::encode $uniq;
		1878	if (aio_open $uniq, O_RDONLY, 0) {
		1879	$self->clear_unique_items;
		1880	$self->_load_objects ($uniq, 0);
761	1	1881	}
762	} or warn "$pkg unloaded, but with errors: $@";	1882	}
763	}
764		1883
765	Symbol::delete_package $pkg;	1884	cf::cede_to_tick;
766	}	1885	# now do the right thing for maps
		1886	$self->link_multipart_objects;
		1887	$self->difficulty ($self->estimate_difficulty)
		1888	unless $self->difficulty;
		1889	cf::cede_to_tick;
767		1890
768	sub load_extensions {	1891	unless ($self->{deny_activate}) {
769	for my $ext (<$LIBDIR/*.ext>) {	1892	$self->decay_objects;
770	next unless -r $ext;	1893	$self->fix_auto_apply;
771	eval {	1894	$self->update_buttons;
772	load_extension $ext;	1895	cf::cede_to_tick;
773	1	1896	$self->set_darkness_map;
774	} or warn "$ext not loaded: $@";	1897	cf::cede_to_tick;
775	}	1898	$self->activate;
776	}	1899	}
777		1900
778	#############################################################################	1901	$self->{last_save} = $cf::RUNTIME;
779	# load/save/clean perl data associated with a map	1902	$self->last_access ($cf::RUNTIME);
780		1903
781	*cf::mapsupport::on_clean = sub {	1904	$self->in_memory (cf::MAP_IN_MEMORY);
		1905	}
		1906
		1907	$self->post_load;
		1908	}
		1909
		1910	sub customise_for {
		1911	my ($self, $ob) = @_;
		1912
		1913	return find "~" . $ob->name . "/" . $self->{path}
		1914	if $self->per_player;
		1915
		1916	# return find "?party/" . $ob->name . "/" . $self->{path}
		1917	# if $self->per_party;
		1918
		1919	$self
		1920	}
		1921
		1922	# find and load all maps in the 3x3 area around a map
		1923	sub load_neighbours {
782	my ($map) = @_;	1924	my ($map) = @_;
783		1925
784	my $path = $map->tmpname;	1926	my @neigh; # diagonal neighbours
785	defined $path or return;
786		1927
787	unlink "$path.pst";	1928	for (0 .. 3) {
788	};	1929	my $neigh = $map->tile_path ($_)
		1930	or next;
		1931	$neigh = find $neigh, $map
		1932	or next;
		1933	$neigh->load;
789		1934
790	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1935	push @neigh,
		1936	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1937	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1938	}
791		1939
792	#############################################################################	1940	for (grep defined $_->[0], @neigh) {
793	# load/save perl data associated with player->ob objects	1941	my ($path, $origin) = @$_;
794		1942	my $neigh = find $path, $origin
795	sub all_objects(@) {	1943	or next;
796	@_, map all_objects ($_->inv), @_	1944	$neigh->load;
		1945	}
797	}	1946	}
798		1947
799	# TODO: compatibility cruft, remove when no longer needed	1948	sub find_sync {
800	cf::player->attach (	1949	my ($path, $origin) = @_;
801	on_load => sub {
802	my ($pl, $path) = @_;
803		1950
804	for my $o (all_objects $pl->ob) {	1951	cf::sync_job { find $path, $origin }
805	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1952	}
806	$o->set_ob_key_value ("_perl_data");
807		1953
808	%$o = %{ Storable::thaw pack "H*", $value };	1954	sub do_load_sync {
		1955	my ($map) = @_;
		1956
		1957	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1958	if $Coro::current == $Coro::main;
		1959
		1960	cf::sync_job { $map->load };
		1961	}
		1962
		1963	our %MAP_PREFETCH;
		1964	our $MAP_PREFETCHER = undef;
		1965
		1966	sub find_async {
		1967	my ($path, $origin, $load) = @_;
		1968
		1969	$path = normalise $path, $origin && $origin->{path};
		1970
		1971	if (my $map = $cf::MAP{$path}) {
		1972	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1973	}
		1974
		1975	$MAP_PREFETCH{$path} |= $load;
		1976
		1977	$MAP_PREFETCHER ||= cf::async {
		1978	while (%MAP_PREFETCH) {
		1979	while (my ($k, $v) = each %MAP_PREFETCH) {
		1980	if (my $map = find $k) {
		1981	$map->load if $v;
		1982	}
		1983
		1984	delete $MAP_PREFETCH{$k};
809	}	1985	}
810	}	1986	}
		1987	undef $MAP_PREFETCHER;
		1988	};
		1989	$MAP_PREFETCHER->prio (6);
		1990
		1991	()
		1992	}
		1993
		1994	sub save {
		1995	my ($self) = @_;
		1996
		1997	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1998
		1999	$self->{last_save} = $cf::RUNTIME;
		2000
		2001	return unless $self->dirty;
		2002
		2003	my $save = $self->save_path; utf8::encode $save;
		2004	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2005
		2006	$self->{load_path} = $save;
		2007
		2008	return if $self->{deny_save};
		2009
		2010	local $self->{last_access} = $self->last_access;#d#
		2011
		2012	cf::async {
		2013	$_->contr->save for $self->players;
		2014	};
		2015
		2016	if ($uniq) {
		2017	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2018	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2019	} else {
		2020	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
811	},	2021	}
812	);	2022	}
813		2023
814	#############################################################################	2024	sub swap_out {
		2025	my ($self) = @_;
815		2026
816	=head2 CORE EXTENSIONS	2027	# save first because save cedes
		2028	$self->save;
817		2029
818	Functions and methods that extend core crossfire objects.	2030	my $lock = cf::lock_acquire "map_data:$self->{path}";
819		2031
820	=head3 cf::player	2032	return if $self->players;
		2033	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2034	return if $self->{deny_save};
		2035
		2036	$self->clear;
		2037	$self->in_memory (cf::MAP_SWAPPED);
		2038	}
		2039
		2040	sub reset_at {
		2041	my ($self) = @_;
		2042
		2043	# TODO: safety, remove and allow resettable per-player maps
		2044	return 1e99 if $self->{deny_reset};
		2045
		2046	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2047	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2048
		2049	$time + $to
		2050	}
		2051
		2052	sub should_reset {
		2053	my ($self) = @_;
		2054
		2055	$self->reset_at <= $cf::RUNTIME
		2056	}
		2057
		2058	sub reset {
		2059	my ($self) = @_;
		2060
		2061	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2062
		2063	return if $self->players;
		2064
		2065	warn "resetting map ", $self->path;
		2066
		2067	$self->in_memory (cf::MAP_SWAPPED);
		2068
		2069	# need to save uniques path
		2070	unless ($self->{deny_save}) {
		2071	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2072
		2073	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2074	if $uniq;
		2075	}
		2076
		2077	delete $cf::MAP{$self->path};
		2078
		2079	$self->clear;
		2080
		2081	$_->clear_links_to ($self) for values %cf::MAP;
		2082
		2083	$self->unlink_save;
		2084	$self->destroy;
		2085	}
		2086
		2087	my $nuke_counter = "aaaa";
		2088
		2089	sub nuke {
		2090	my ($self) = @_;
		2091
		2092	{
		2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2094
		2095	delete $cf::MAP{$self->path};
		2096
		2097	$self->unlink_save;
		2098
		2099	bless $self, "cf::map";
		2100	delete $self->{deny_reset};
		2101	$self->{deny_save} = 1;
		2102	$self->reset_timeout (1);
		2103	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2104
		2105	$cf::MAP{$self->path} = $self;
		2106	}
		2107
		2108	$self->reset; # polite request, might not happen
		2109	}
		2110
		2111	=item $maps = cf::map::tmp_maps
		2112
		2113	Returns an arrayref with all map paths of currently instantiated and saved
		2114	maps. May block.
		2115
		2116	=cut
		2117
		2118	sub tmp_maps() {
		2119	[
		2120	map {
		2121	utf8::decode $_;
		2122	/\.map$/
		2123	? normalise $_
		2124	: ()
		2125	} @{ aio_readdir $TMPDIR or [] }
		2126	]
		2127	}
		2128
		2129	=item $maps = cf::map::random_maps
		2130
		2131	Returns an arrayref with all map paths of currently instantiated and saved
		2132	random maps. May block.
		2133
		2134	=cut
		2135
		2136	sub random_maps() {
		2137	[
		2138	map {
		2139	utf8::decode $_;
		2140	/\.map$/
		2141	? normalise "?random/$_"
		2142	: ()
		2143	} @{ aio_readdir $RANDOMDIR or [] }
		2144	]
		2145	}
		2146
		2147	=item cf::map::unique_maps
		2148
		2149	Returns an arrayref of paths of all shared maps that have
		2150	instantiated unique items. May block.
		2151
		2152	=cut
		2153
		2154	sub unique_maps() {
		2155	[
		2156	map {
		2157	utf8::decode $_;
		2158	/\.map$/
		2159	? normalise $_
		2160	: ()
		2161	} @{ aio_readdir $UNIQUEDIR or [] }
		2162	]
		2163	}
		2164
		2165	package cf;
		2166
		2167	=back
		2168
		2169	=head3 cf::object
		2170
		2171	=cut
		2172
		2173	package cf::object;
821		2174
822	=over 4	2175	=over 4
823		2176
824	=item cf::player::exists $login	2177	=item $ob->inv_recursive
825		2178
826	Returns true when the given account exists.	2179	Returns the inventory of the object _and_ their inventories, recursively.
827		2180
828	=cut	2181	=cut
829		2182
830	sub cf::player::exists($) {	2183	sub inv_recursive_;
831	cf::player::find $_[0]	2184	sub inv_recursive_ {
832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2185	map { $_, inv_recursive_ $_->inv } @_
833	}	2186	}
834		2187
835	=item $player->ext_reply ($msgid, $msgtype, %msg)	2188	sub inv_recursive {
836		2189	inv_recursive_ inv $_[0]
837	Sends an ext reply to the player.
838
839	=cut
840
841	sub cf::player::ext_reply($$$%) {
842	my ($self, $id, %msg) = @_;
843
844	$msg{msgid} = $id;
845
846	$self->send ("ext " . to_json \%msg);
847	}	2190	}
		2191
		2192	package cf;
848		2193
849	=back	2194	=back
850		2195
851	=head3 cf::object::player	2196	=head3 cf::object::player
852		2197
…		…
868		2213
869	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2214	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
870		2215
871	if ($self->{record_replies}) {	2216	if ($self->{record_replies}) {
872	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2217	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2218
873	} else {	2219	} else {
		2220	my $pl = $self->contr;
		2221
		2222	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2223	my $dialog = $pl->{npc_dialog};
		2224	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2225
		2226	} else {
874	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
875	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
876	}	2230	}
		2231	}
		2232
		2233	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2234
		2235	=cut
		2236
		2237	sub cf::object::send_msg {
		2238	my $pl = shift->contr
		2239	or return;
		2240	$pl->send_msg (@_);
877	}	2241	}
878		2242
879	=item $player_object->may ("access")	2243	=item $player_object->may ("access")
880		2244
881	Returns wether the given player is authorized to access resource "access"	2245	Returns wether the given player is authorized to access resource "access"
…		…
890	(ref $cf::CFG{"may_$access"}	2254	(ref $cf::CFG{"may_$access"}
891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2255	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
892	: $cf::CFG{"may_$access"})	2256	: $cf::CFG{"may_$access"})
893	}	2257	}
894		2258
		2259	=item $player_object->enter_link
		2260
		2261	Freezes the player and moves him/her to a special map (C<{link}>).
		2262
		2263	The player should be reasonably safe there for short amounts of time. You
		2264	I<MUST> call C<leave_link> as soon as possible, though.
		2265
		2266	Will never block.
		2267
		2268	=item $player_object->leave_link ($map, $x, $y)
		2269
		2270	Moves the player out of the special C<{link}> map onto the specified
		2271	map. If the map is not valid (or omitted), the player will be moved back
		2272	to the location he/she was before the call to C<enter_link>, or, if that
		2273	fails, to the emergency map position.
		2274
		2275	Might block.
		2276
		2277	=cut
		2278
		2279	sub link_map {
		2280	unless ($LINK_MAP) {
		2281	$LINK_MAP = cf::map::find "{link}"
		2282	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2283	$LINK_MAP->load;
		2284	}
		2285
		2286	$LINK_MAP
		2287	}
		2288
		2289	sub cf::object::player::enter_link {
		2290	my ($self) = @_;
		2291
		2292	$self->deactivate_recursive;
		2293
		2294	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2295
		2296	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2297	if $self->map && $self->map->{path} ne "{link}";
		2298
		2299	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2300	}
		2301
		2302	sub cf::object::player::leave_link {
		2303	my ($self, $map, $x, $y) = @_;
		2304
		2305	return unless $self->contr->active;
		2306
		2307	my $link_pos = delete $self->{_link_pos};
		2308
		2309	unless ($map) {
		2310	# restore original map position
		2311	($map, $x, $y) = @{ $link_pos || [] };
		2312	$map = cf::map::find $map;
		2313
		2314	unless ($map) {
		2315	($map, $x, $y) = @$EMERGENCY_POSITION;
		2316	$map = cf::map::find $map
		2317	or die "FATAL: cannot load emergency map\n";
		2318	}
		2319	}
		2320
		2321	($x, $y) = (-1, -1)
		2322	unless (defined $x) && (defined $y);
		2323
		2324	# use -1 or undef as default coordinates, not 0, 0
		2325	($x, $y) = ($map->enter_x, $map->enter_y)
		2326	if $x <=0 && $y <= 0;
		2327
		2328	$map->load;
		2329	$map->load_neighbours;
		2330
		2331	return unless $self->contr->active;
		2332	$self->activate_recursive;
		2333
		2334	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2335	$self->enter_map ($map, $x, $y);
		2336	}
		2337
		2338	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2339
		2340	Moves the player to the given map-path and coordinates by first freezing
		2341	her, loading and preparing them map, calling the provided $check callback
		2342	that has to return the map if sucecssful, and then unfreezes the player on
		2343	the new (success) or old (failed) map position. In either case, $done will
		2344	be called at the end of this process.
		2345
		2346	=cut
		2347
		2348	our $GOTOGEN;
		2349
		2350	sub cf::object::player::goto {
		2351	my ($self, $path, $x, $y, $check, $done) = @_;
		2352
		2353	# do generation counting so two concurrent goto's will be executed in-order
		2354	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2355
		2356	$self->enter_link;
		2357
		2358	(async {
		2359	my $map = eval {
		2360	my $map = cf::map::find $path;
		2361
		2362	if ($map) {
		2363	$map = $map->customise_for ($self);
		2364	$map = $check->($map) if $check && $map;
		2365	} else {
		2366	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2367	}
		2368
		2369	$map
		2370	};
		2371
		2372	if ($@) {
		2373	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2374	LOG llevError | logBacktrace, Carp::longmess $@;
		2375	}
		2376
		2377	if ($gen == $self->{_goto_generation}) {
		2378	delete $self->{_goto_generation};
		2379	$self->leave_link ($map, $x, $y);
		2380	}
		2381
		2382	$done->() if $done;
		2383	})->prio (1);
		2384	}
		2385
		2386	=item $player_object->enter_exit ($exit_object)
		2387
		2388	=cut
		2389
		2390	sub parse_random_map_params {
		2391	my ($spec) = @_;
		2392
		2393	my $rmp = { # defaults
		2394	xsize => (cf::rndm 15, 40),
		2395	ysize => (cf::rndm 15, 40),
		2396	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2397	#layout => string,
		2398	};
		2399
		2400	for (split /\n/, $spec) {
		2401	my ($k, $v) = split /\s+/, $_, 2;
		2402
		2403	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2404	}
		2405
		2406	$rmp
		2407	}
		2408
		2409	sub prepare_random_map {
		2410	my ($exit) = @_;
		2411
		2412	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2413
		2414	# all this does is basically replace the /! path by
		2415	# a new random map path (?random/...) with a seed
		2416	# that depends on the exit object
		2417
		2418	my $rmp = parse_random_map_params $exit->msg;
		2419
		2420	if ($exit->map) {
		2421	$rmp->{region} = $exit->region->name;
		2422	$rmp->{origin_map} = $exit->map->path;
		2423	$rmp->{origin_x} = $exit->x;
		2424	$rmp->{origin_y} = $exit->y;
		2425	}
		2426
		2427	$rmp->{random_seed} ||= $exit->random_seed;
		2428
		2429	my $data = cf::to_json $rmp;
		2430	my $md5 = Digest::MD5::md5_hex $data;
		2431	my $meta = "$RANDOMDIR/$md5.meta";
		2432
		2433	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2434	aio_write $fh, 0, (length $data), $data, 0;
		2435	undef $fh;
		2436	aio_rename "$meta~", $meta;
		2437
		2438	$exit->slaying ("?random/$md5");
		2439	$exit->msg (undef);
		2440	}
		2441	}
		2442
		2443	sub cf::object::player::enter_exit {
		2444	my ($self, $exit) = @_;
		2445
		2446	return unless $self->type == cf::PLAYER;
		2447
		2448	if ($exit->slaying eq "/!") {
		2449	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2450	# the problem is that $exit might not survive long enough
		2451	# so it needs to be done right now, right here
		2452	cf::sync_job { prepare_random_map $exit };
		2453	}
		2454
		2455	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2456	my $hp = $exit->stats->hp;
		2457	my $sp = $exit->stats->sp;
		2458
		2459	$self->enter_link;
		2460
		2461	# if exit is damned, update players death & WoR home-position
		2462	$self->contr->savebed ($slaying, $hp, $sp)
		2463	if $exit->flag (FLAG_DAMNED);
		2464
		2465	(async {
		2466	$self->deactivate_recursive; # just to be sure
		2467	unless (eval {
		2468	$self->goto ($slaying, $hp, $sp);
		2469
		2470	1;
		2471	}) {
		2472	$self->message ("Something went wrong deep within the crossfire server. "
		2473	. "I'll try to bring you back to the map you were before. "
		2474	. "Please report this to the dungeon master!",
		2475	cf::NDI_UNIQUE | cf::NDI_RED);
		2476
		2477	warn "ERROR in enter_exit: $@";
		2478	$self->leave_link;
		2479	}
		2480	})->prio (1);
		2481	}
		2482
895	=head3 cf::client	2483	=head3 cf::client
896		2484
897	=over 4	2485	=over 4
898		2486
899	=item $client->send_drawinfo ($text, $flags)	2487	=item $client->send_drawinfo ($text, $flags)
…		…
905		2493
906	sub cf::client::send_drawinfo {	2494	sub cf::client::send_drawinfo {
907	my ($self, $text, $flags) = @_;	2495	my ($self, $text, $flags) = @_;
908		2496
909	utf8::encode $text;	2497	utf8::encode $text;
910	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2498	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
911	}	2499	}
912		2500
		2501	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2502
		2503	Send a drawinfo or msg packet to the client, formatting the msg for the
		2504	client if neccessary. C<$type> should be a string identifying the type of
		2505	the message, with C<log> being the default. If C<$color> is negative, suppress
		2506	the message unless the client supports the msg packet.
		2507
		2508	=cut
		2509
		2510	our %CHANNEL = (
		2511	"c/identify" => {
		2512	id => "identify",
		2513	title => "Identify",
		2514	reply => undef,
		2515	tooltip => "Items recently identified",
		2516	},
		2517	"c/examine" => {
		2518	id => "examine",
		2519	title => "Examine",
		2520	reply => undef,
		2521	tooltip => "Signs and other items you examined",
		2522	},
		2523	);
		2524
		2525	sub cf::client::send_msg {
		2526	my ($self, $channel, $msg, $color, @extra) = @_;
		2527
		2528	$msg = $self->pl->expand_cfpod ($msg);
		2529
		2530	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2531
		2532	# check predefined channels, for the benefit of C
		2533	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2534
		2535	if (ref $channel) {
		2536	# send meta info to client, if not yet sent
		2537	unless (exists $self->{channel}{$channel->{id}}) {
		2538	$self->{channel}{$channel->{id}} = $channel;
		2539	$self->ext_msg (channel_info => $channel);
		2540	}
		2541
		2542	$channel = $channel->{id};
		2543	}
		2544
		2545	return unless @extra || length $msg;
		2546
		2547	if ($self->can_msg) {
		2548	# default colour, mask it out
		2549	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2550	if $color & cf::NDI_DEF;
		2551
		2552	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2553	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2554	} else {
		2555	if ($color >= 0) {
		2556	# replace some tags by gcfclient-compatible ones
		2557	for ($msg) {
		2558	1 while
		2559	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2560	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2561	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2562	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2563	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2564	}
		2565
		2566	$color &= cf::NDI_COLOR_MASK;
		2567
		2568	utf8::encode $msg;
		2569
		2570	if (0 && $msg =~ /\[/) {
		2571	# COMMAND/INFO
		2572	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2573	} else {
		2574	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2575	$self->send_packet ("drawinfo $color $msg")
		2576	}
		2577	}
		2578	}
		2579	}
		2580
		2581	=item $client->ext_msg ($type, @msg)
		2582
		2583	Sends an ext event to the client.
		2584
		2585	=cut
		2586
		2587	sub cf::client::ext_msg($$@) {
		2588	my ($self, $type, @msg) = @_;
		2589
		2590	if ($self->extcmd == 2) {
		2591	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2592	} elsif ($self->extcmd == 1) { # TODO: remove
		2593	push @msg, msgtype => "event_$type";
		2594	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2595	}
		2596	}
		2597
		2598	=item $client->ext_reply ($msgid, @msg)
		2599
		2600	Sends an ext reply to the client.
		2601
		2602	=cut
		2603
		2604	sub cf::client::ext_reply($$@) {
		2605	my ($self, $id, @msg) = @_;
		2606
		2607	if ($self->extcmd == 2) {
		2608	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2609	} elsif ($self->extcmd == 1) {
		2610	#TODO: version 1, remove
		2611	unshift @msg, msgtype => "reply", msgid => $id;
		2612	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2613	}
		2614	}
913		2615
914	=item $success = $client->query ($flags, "text", \&cb)	2616	=item $success = $client->query ($flags, "text", \&cb)
915		2617
916	Queues a query to the client, calling the given callback with	2618	Queues a query to the client, calling the given callback with
917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2619	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2620	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
919		2621
920	Queries can fail, so check the return code. Or don't, as queries will become	2622	Queries can fail, so check the return code. Or don't, as queries will
921	reliable at some point in the future.	2623	become reliable at some point in the future.
922		2624
923	=cut	2625	=cut
924		2626
925	sub cf::client::query {	2627	sub cf::client::query {
926	my ($self, $flags, $text, $cb) = @_;	2628	my ($self, $flags, $text, $cb) = @_;
…		…
934	utf8::encode $text;	2636	utf8::encode $text;
935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2637	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
936		2638
937	$self->send_packet ($self->{query_queue}[0][0])	2639	$self->send_packet ($self->{query_queue}[0][0])
938	if @{ $self->{query_queue} } == 1;	2640	if @{ $self->{query_queue} } == 1;
		2641
		2642	1
939	}	2643	}
940		2644
941	cf::client->attach (	2645	cf::client->attach (
		2646	on_connect => sub {
		2647	my ($ns) = @_;
		2648
		2649	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2650	},
942	on_reply => sub {	2651	on_reply => sub {
943	my ($ns, $msg) = @_;	2652	my ($ns, $msg) = @_;
944		2653
945	# this weird shuffling is so that direct followup queries	2654	# this weird shuffling is so that direct followup queries
946	# get handled first	2655	# get handled first
947	my $queue = delete $ns->{query_queue};	2656	my $queue = delete $ns->{query_queue}
		2657	or return; # be conservative, not sure how that can happen, but we saw a crash here
948		2658
949	(shift @$queue)->[1]->($msg);	2659	(shift @$queue)->[1]->($msg);
		2660	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
950		2661
951	push @{ $ns->{query_queue} }, @$queue;	2662	push @{ $ns->{query_queue} }, @$queue;
952		2663
953	if (@{ $ns->{query_queue} } == @$queue) {	2664	if (@{ $ns->{query_queue} } == @$queue) {
954	if (@$queue) {	2665	if (@$queue) {
…		…
956	} else {	2667	} else {
957	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2668	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
958	}	2669	}
959	}	2670	}
960	},	2671	},
		2672	on_exticmd => sub {
		2673	my ($ns, $buf) = @_;
		2674
		2675	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2676
		2677	if (ref $msg) {
		2678	my ($type, $reply, @payload) =
		2679	"ARRAY" eq ref $msg
		2680	? @$msg
		2681	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2682
		2683	my @reply;
		2684
		2685	if (my $cb = $EXTICMD{$type}) {
		2686	@reply = $cb->($ns, @payload);
		2687	}
		2688
		2689	$ns->ext_reply ($reply, @reply)
		2690	if $reply;
		2691
		2692	} else {
		2693	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2694	}
		2695
		2696	cf::override;
		2697	},
961	);	2698	);
962		2699
963	=item $client->coro (\&cb)	2700	=item $client->async (\&cb)
964		2701
965	Create a new coroutine, running the specified callback. The coroutine will	2702	Create a new coroutine, running the specified callback. The coroutine will
966	be automatically cancelled when the client gets destroyed (e.g. on logout,	2703	be automatically cancelled when the client gets destroyed (e.g. on logout,
967	or loss of connection).	2704	or loss of connection).
968		2705
969	=cut	2706	=cut
970		2707
971	sub cf::client::coro {	2708	sub cf::client::async {
972	my ($self, $cb) = @_;	2709	my ($self, $cb) = @_;
973		2710
974	my $coro; $coro = async {	2711	my $coro = &Coro::async ($cb);
975	eval {
976	$cb->();
977	};
978	warn $@ if $@;
979	};
980		2712
981	$coro->on_destroy (sub {	2713	$coro->on_destroy (sub {
982	delete $self->{_coro}{$coro+0};	2714	delete $self->{_coro}{$coro+0};
983	});	2715	});
984		2716
…		…
1011	our $safe = new Safe "safe";	2743	our $safe = new Safe "safe";
1012	our $safe_hole = new Safe::Hole;	2744	our $safe_hole = new Safe::Hole;
1013		2745
1014	$SIG{FPE} = 'IGNORE';	2746	$SIG{FPE} = 'IGNORE';
1015		2747
1016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2748	$safe->permit_only (Opcode::opset qw(
		2749	:base_core :base_mem :base_orig :base_math
		2750	grepstart grepwhile mapstart mapwhile
		2751	sort time
		2752	));
1017		2753
1018	# here we export the classes and methods available to script code	2754	# here we export the classes and methods available to script code
1019		2755
1020	=pod	2756	=pod
1021		2757
1022	The following fucntions and emthods are available within a safe environment:	2758	The following functions and methods are available within a safe environment:
1023		2759
1024	cf::object contr pay_amount pay_player map	2760	cf::object
		2761	contr pay_amount pay_player map x y force_find force_add
		2762	insert remove name archname title slaying race decrease_ob_nr
		2763
1025	cf::object::player player	2764	cf::object::player
1026	cf::player peaceful	2765	player
1027	cf::map trigger	2766
		2767	cf::player
		2768	peaceful
		2769
		2770	cf::map
		2771	trigger
1028		2772
1029	=cut	2773	=cut
1030		2774
1031	for (	2775	for (
1032	["cf::object" => qw(contr pay_amount pay_player map)],	2776	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2777	insert remove inv name archname title slaying race
		2778	decrease_ob_nr)],
1033	["cf::object::player" => qw(player)],	2779	["cf::object::player" => qw(player)],
1034	["cf::player" => qw(peaceful)],	2780	["cf::player" => qw(peaceful)],
1035	["cf::map" => qw(trigger)],	2781	["cf::map" => qw(trigger)],
1036	) {	2782	) {
1037	no strict 'refs';	2783	no strict 'refs';
…		…
1108	=back	2854	=back
1109		2855
1110	=cut	2856	=cut
1111		2857
1112	#############################################################################	2858	#############################################################################
		2859	# the server's init and main functions
1113		2860
1114	=head2 EXTENSION DATABASE SUPPORT	2861	sub load_facedata($) {
		2862	my ($path) = @_;
1115		2863
1116	Crossfire maintains a very simple database for extension use. It can	2864	# HACK to clear player env face cache, we need some signal framework
1117	currently store anything that can be serialised using Storable, which	2865	# for this (global event?)
1118	excludes objects.	2866	%ext::player_env::MUSIC_FACE_CACHE = ();
1119		2867
1120	The parameter C<$family> should best start with the name of the extension	2868	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1121	using it, it should be unique.
1122		2869
1123	=over 4	2870	warn "loading facedata from $path\n";
1124		2871
1125	=item $hashref = cf::db_get $family	2872	my $facedata;
		2873	0 < aio_load $path, $facedata
		2874	or die "$path: $!";
1126		2875
1127	Return a hashref for use by the extension C<$family>, which can be	2876	$facedata = Coro::Storable::thaw $facedata;
1128	modified. After modifications, you have to call C<cf::db_dirty> or
1129	C<cf::db_sync>.
1130		2877
1131	=item $value = cf::db_get $family => $key	2878	$facedata->{version} == 2
		2879	or cf::cleanup "$path: version mismatch, cannot proceed.";
1132		2880
1133	Returns a single value from the database	2881	# patch in the exptable
1134		2882	$facedata->{resource}{"res/exp_table"} = {
1135	=item cf::db_put $family => $hashref	2883	type => FT_RSRC,
1136		2884	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1137	Stores the given family hashref into the database. Updates are delayed, if
1138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1139
1140	=item cf::db_put $family => $key => $value
1141
1142	Stores the given C<$value> in the family hash. Updates are delayed, if you
1143	want the data to be synced to disk immediately, use C<cf::db_sync>.
1144
1145	=item cf::db_dirty
1146
1147	Marks the database as dirty, to be updated at a later time.
1148
1149	=item cf::db_sync
1150
1151	Immediately write the database to disk I<if it is dirty>.
1152
1153	=cut
1154
1155	our $DB;
1156
1157	{
1158	my $path = cf::localdir . "/database.pst";
1159
1160	sub db_load() {
1161	warn "loading database $path\n";#d# remove later
1162	$DB = stat $path ? Storable::retrieve $path : { };
1163	}
1164
1165	my $pid;
1166
1167	sub db_save() {
1168	warn "saving database $path\n";#d# remove later
1169	waitpid $pid, 0 if $pid;
1170	if (0 == ($pid = fork)) {
1171	$DB->{_meta}{version} = 1;
1172	Storable::nstore $DB, "$path~";
1173	rename "$path~", $path;
1174	cf::_exit 0 if defined $pid;
1175	}
1176	}
1177
1178	my $dirty;
1179
1180	sub db_sync() {
1181	db_save if $dirty;
1182	undef $dirty;
1183	}
1184
1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1186	db_sync;
1187	});	2885	};
		2886	cf::cede_to_tick;
1188		2887
1189	sub db_dirty() {
1190	$dirty = 1;
1191	$idle->start;
1192	}	2888	{
		2889	my $faces = $facedata->{faceinfo};
1193		2890
1194	sub db_get($;$) {	2891	while (my ($face, $info) = each %$faces) {
1195	@_ >= 2	2892	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1196	? $DB->{$_[0]}{$_[1]}	2893	cf::face::set_visibility $idx, $info->{visibility};
1197	: ($DB->{$_[0]} ||= { })	2894	cf::face::set_magicmap $idx, $info->{magicmap};
1198	}	2895	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2896	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1199		2897
1200	sub db_put($$;$) {	2898	cf::cede_to_tick;
1201	if (@_ >= 3) {
1202	$DB->{$_[0]}{$_[1]} = $_[2];
1203	} else {
1204	$DB->{$_[0]} = $_[1];
1205	}
1206	db_dirty;
1207	}
1208
1209	cf::global->attach (
1210	prio => 10000,
1211	on_cleanup => sub {
1212	db_sync;
1213	},	2899	}
1214	);
1215	}
1216		2900
1217	#############################################################################	2901	while (my ($face, $info) = each %$faces) {
1218	# the server's main()	2902	next unless $info->{smooth};
		2903	my $idx = cf::face::find $face
		2904	or next;
		2905	if (my $smooth = cf::face::find $info->{smooth}) {
		2906	cf::face::set_smooth $idx, $smooth;
		2907	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2908	} else {
		2909	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2910	}
1219		2911
1220	sub cfg_load {	2912	cf::cede_to_tick;
		2913	}
		2914	}
		2915
		2916	{
		2917	my $anims = $facedata->{animinfo};
		2918
		2919	while (my ($anim, $info) = each %$anims) {
		2920	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2921	cf::cede_to_tick;
		2922	}
		2923
		2924	cf::anim::invalidate_all; # d'oh
		2925	}
		2926
		2927	{
		2928	# TODO: for gcfclient pleasure, we should give resources
		2929	# that gcfclient doesn't grok a >10000 face index.
		2930	my $res = $facedata->{resource};
		2931
		2932	my $soundconf = delete $res->{"res/sound.conf"};
		2933
		2934	while (my ($name, $info) = each %$res) {
		2935	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2936	my $data;
		2937
		2938	if ($info->{type} & 1) {
		2939	# prepend meta info
		2940
		2941	my $meta = $enc->encode ({
		2942	name => $name,
		2943	%{ $info->{meta} || {} },
		2944	});
		2945
		2946	$data = pack "(w/a*)*", $meta, $info->{data};
		2947	} else {
		2948	$data = $info->{data};
		2949	}
		2950
		2951	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2952	cf::face::set_type $idx, $info->{type};
		2953
		2954	cf::cede_to_tick;
		2955	}
		2956
		2957	if ($soundconf) {
		2958	$soundconf = $enc->decode (delete $soundconf->{data});
		2959
		2960	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2961	my $sound = $soundconf->{compat}[$_]
		2962	or next;
		2963
		2964	my $face = cf::face::find "sound/$sound->[1]";
		2965	cf::sound::set $sound->[0] => $face;
		2966	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2967	}
		2968
		2969	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2970	my $face = cf::face::find "sound/$v";
		2971	cf::sound::set $k => $face;
		2972	}
		2973	}
		2974	}
		2975
		2976	1
		2977	}
		2978
		2979	register_exticmd fx_want => sub {
		2980	my ($ns, $want) = @_;
		2981
		2982	while (my ($k, $v) = each %$want) {
		2983	$ns->fx_want ($k, $v);
		2984	}
		2985	};
		2986
		2987	sub reload_regions {
		2988	# HACK to clear player env face cache, we need some signal framework
		2989	# for this (global event?)
		2990	%ext::player_env::MUSIC_FACE_CACHE = ();
		2991
		2992	load_resource_file "$MAPDIR/regions"
		2993	or die "unable to load regions file\n";
		2994
		2995	for (cf::region::list) {
		2996	$_->{match} = qr/$_->{match}/
		2997	if exists $_->{match};
		2998	}
		2999	}
		3000
		3001	sub reload_facedata {
		3002	load_facedata "$DATADIR/facedata"
		3003	or die "unable to load facedata\n";
		3004	}
		3005
		3006	sub reload_archetypes {
		3007	load_resource_file "$DATADIR/archetypes"
		3008	or die "unable to load archetypes\n";
		3009	#d# NEED to laod twice to resolve forward references
		3010	# this really needs to be done in an extra post-pass
		3011	# (which needs to be synchronous, so solve it differently)
		3012	load_resource_file "$DATADIR/archetypes"
		3013	or die "unable to load archetypes\n";
		3014	}
		3015
		3016	sub reload_treasures {
		3017	load_resource_file "$DATADIR/treasures"
		3018	or die "unable to load treasurelists\n";
		3019	}
		3020
		3021	sub reload_resources {
		3022	warn "reloading resource files...\n";
		3023
		3024	reload_regions;
		3025	reload_facedata;
		3026	#reload_archetypes;#d#
		3027	reload_archetypes;
		3028	reload_treasures;
		3029
		3030	warn "finished reloading resource files\n";
		3031	}
		3032
		3033	sub init {
		3034	reload_resources;
		3035	}
		3036
		3037	sub reload_config {
1221	open my $fh, "<:utf8", cf::confdir . "/config"	3038	open my $fh, "<:utf8", "$CONFDIR/config"
1222	or return;	3039	or return;
1223		3040
1224	local $/;	3041	local $/;
1225	*CFG = YAML::Syck::Load <$fh>;	3042	*CFG = YAML::Syck::Load <$fh>;
		3043
		3044	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3045
		3046	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3047	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3048
		3049	if (exists $CFG{mlockall}) {
		3050	eval {
		3051	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3052	and die "WARNING: m(un)lockall failed: $!\n";
		3053	};
		3054	warn $@ if $@;
		3055	}
1226	}	3056	}
1227		3057
1228	sub main {	3058	sub main {
1229	cfg_load;	3059	# we must not ever block the main coroutine
1230	db_load;	3060	local $Coro::idle = sub {
		3061	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3062	(async {
		3063	Event::one_event;
		3064	})->prio (Coro::PRIO_MAX);
		3065	};
		3066
		3067	reload_config;
		3068	db_init;
1231	load_extensions;	3069	load_extensions;
		3070
		3071	$TICK_WATCHER->start;
1232	Event::loop;	3072	Event::loop;
1233	}	3073	}
1234		3074
1235	#############################################################################	3075	#############################################################################
1236	# initialisation	3076	# initialisation and cleanup
1237		3077
1238	sub _perl_reload() {	3078	# install some emergency cleanup handlers
		3079	BEGIN {
		3080	for my $signal (qw(INT HUP TERM)) {
		3081	Event->signal (
		3082	reentrant => 0,
		3083	data => WF_AUTOCANCEL,
		3084	signal => $signal,
		3085	prio => 0,
		3086	cb => sub {
		3087	cf::cleanup "SIG$signal";
		3088	},
		3089	);
		3090	}
		3091	}
		3092
		3093	sub write_runtime {
		3094	my $runtime = "$LOCALDIR/runtime";
		3095
		3096	# first touch the runtime file to show we are still running:
		3097	# the fsync below can take a very very long time.
		3098
		3099	IO::AIO::aio_utime $runtime, undef, undef;
		3100
		3101	my $guard = cf::lock_acquire "write_runtime";
		3102
		3103	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3104	or return;
		3105
		3106	my $value = $cf::RUNTIME + 90 + 10;
		3107	# 10 is the runtime save interval, for a monotonic clock
		3108	# 60 allows for the watchdog to kill the server.
		3109
		3110	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3111	and return;
		3112
		3113	# always fsync - this file is important
		3114	aio_fsync $fh
		3115	and return;
		3116
		3117	# touch it again to show we are up-to-date
		3118	aio_utime $fh, undef, undef;
		3119
		3120	close $fh
		3121	or return;
		3122
		3123	aio_rename "$runtime~", $runtime
		3124	and return;
		3125
		3126	warn "runtime file written.\n";
		3127
		3128	1
		3129	}
		3130
		3131	sub emergency_save() {
		3132	my $freeze_guard = cf::freeze_mainloop;
		3133
		3134	warn "enter emergency perl save\n";
		3135
		3136	cf::sync_job {
		3137	# use a peculiar iteration method to avoid tripping on perl
		3138	# refcount bugs in for. also avoids problems with players
		3139	# and maps saved/destroyed asynchronously.
		3140	warn "begin emergency player save\n";
		3141	for my $login (keys %cf::PLAYER) {
		3142	my $pl = $cf::PLAYER{$login} or next;
		3143	$pl->valid or next;
		3144	$pl->save;
		3145	}
		3146	warn "end emergency player save\n";
		3147
		3148	warn "begin emergency map save\n";
		3149	for my $path (keys %cf::MAP) {
		3150	my $map = $cf::MAP{$path} or next;
		3151	$map->valid or next;
		3152	$map->save;
		3153	}
		3154	warn "end emergency map save\n";
		3155
		3156	warn "begin emergency database checkpoint\n";
		3157	BDB::db_env_txn_checkpoint $DB_ENV;
		3158	warn "end emergency database checkpoint\n";
		3159	};
		3160
		3161	warn "leave emergency perl save\n";
		3162	}
		3163
		3164	sub post_cleanup {
		3165	my ($make_core) = @_;
		3166
		3167	warn Carp::longmess "post_cleanup backtrace"
		3168	if $make_core;
		3169	}
		3170
		3171	sub do_reload_perl() {
		3172	# can/must only be called in main
		3173	if ($Coro::current != $Coro::main) {
		3174	warn "can only reload from main coroutine";
		3175	return;
		3176	}
		3177
1239	warn "reloading...";	3178	warn "reloading...";
1240		3179
1241	eval {	3180	warn "entering sync_job";
1242	local $FREEZE = 1;
1243		3181
		3182	cf::sync_job {
		3183	cf::write_runtime; # external watchdog should not bark
1244	cf::emergency_save;	3184	cf::emergency_save;
		3185	cf::write_runtime; # external watchdog should not bark
1245		3186
1246	# cancel all watchers	3187	warn "syncing database to disk";
		3188	BDB::db_env_txn_checkpoint $DB_ENV;
		3189
		3190	# if anything goes wrong in here, we should simply crash as we already saved
		3191
		3192	warn "cancelling all WF_AUTOCANCEL watchers";
1247	for (Event::all_watchers) {	3193	for (Event::all_watchers) {
1248	$_->cancel if $_->data & WF_AUTOCANCEL;	3194	$_->cancel if $_->data & WF_AUTOCANCEL;
1249	}	3195	}
1250		3196
		3197	warn "flushing outstanding aio requests";
		3198	for (;;) {
		3199	BDB::flush;
		3200	IO::AIO::flush;
		3201	Coro::cede;
		3202	last unless IO::AIO::nreqs || BDB::nreqs;
		3203	warn "iterate...";
		3204	}
		3205
		3206	++$RELOAD;
		3207
1251	# cancel all extension coros	3208	warn "cancelling all extension coros";
1252	$_->cancel for values %EXT_CORO;	3209	$_->cancel for values %EXT_CORO;
1253	%EXT_CORO = ();	3210	%EXT_CORO = ();
1254		3211
1255	# unload all extensions	3212	warn "removing commands";
1256	for (@exts) {	3213	%COMMAND = ();
		3214
		3215	warn "removing ext/exti commands";
		3216	%EXTCMD = ();
		3217	%EXTICMD = ();
		3218
		3219	warn "unloading/nuking all extensions";
		3220	for my $pkg (@EXTS) {
1257	warn "unloading <$_>";	3221	warn "... unloading $pkg";
1258	unload_extension $_;	3222
		3223	if (my $cb = $pkg->can ("unload")) {
		3224	eval {
		3225	$cb->($pkg);
		3226	1
		3227	} or warn "$pkg unloaded, but with errors: $@";
1259	}	3228	}
1260		3229
		3230	warn "... nuking $pkg";
		3231	Symbol::delete_package $pkg;
		3232	}
		3233
1261	# unload all modules loaded from $LIBDIR	3234	warn "unloading all perl modules loaded from $LIBDIR";
1262	while (my ($k, $v) = each %INC) {	3235	while (my ($k, $v) = each %INC) {
1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3236	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1264		3237
1265	warn "removing <$k>";	3238	warn "... unloading $k";
1266	delete $INC{$k};	3239	delete $INC{$k};
1267		3240
1268	$k =~ s/\.pm$//;	3241	$k =~ s/\.pm$//;
1269	$k =~ s/\//::/g;	3242	$k =~ s/\//::/g;
1270		3243
…		…
1273	}	3246	}
1274		3247
1275	Symbol::delete_package $k;	3248	Symbol::delete_package $k;
1276	}	3249	}
1277		3250
1278	# sync database to disk
1279	cf::db_sync;
1280	IO::AIO::flush;
1281
1282	# get rid of safe::, as good as possible	3251	warn "getting rid of safe::, as good as possible";
1283	Symbol::delete_package "safe::$_"	3252	Symbol::delete_package "safe::$_"
1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3253	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1285		3254
1286	# remove register_script_function callbacks
1287	# TODO
1288
1289	# unload cf.pm "a bit"	3255	warn "unloading cf.pm \"a bit\"";
1290	delete $INC{"cf.pm"};	3256	delete $INC{"cf.pm"};
		3257	delete $INC{"cf/pod.pm"};
1291		3258
1292	# don't, removes xs symbols, too,	3259	# don't, removes xs symbols, too,
1293	# and global variables created in xs	3260	# and global variables created in xs
1294	#Symbol::delete_package __PACKAGE__;	3261	#Symbol::delete_package __PACKAGE__;
1295		3262
1296	# reload cf.pm	3263	warn "unload completed, starting to reload now";
		3264
1297	warn "reloading cf.pm";	3265	warn "reloading cf.pm";
1298	require cf;	3266	require cf;
1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3267	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1300		3268
1301	# load config and database again	3269	warn "loading config and database again";
1302	cf::cfg_load;	3270	cf::reload_config;
1303	cf::db_load;
1304		3271
1305	# load extensions
1306	warn "load extensions";	3272	warn "loading extensions";
1307	cf::load_extensions;	3273	cf::load_extensions;
1308		3274
1309	# reattach attachments to objects	3275	warn "reattaching attachments to objects/players";
1310	warn "reattach";	3276	_global_reattach; # objects, sockets
1311	_global_reattach;	3277	warn "reattaching attachments to maps";
		3278	reattach $_ for values %MAP;
		3279	warn "reattaching attachments to players";
		3280	reattach $_ for values %PLAYER;
		3281
		3282	warn "leaving sync_job";
		3283
		3284	1
		3285	} or do {
		3286	warn $@;
		3287	warn "error while reloading, exiting.";
		3288	exit 1;
1312	};	3289	};
1313	warn $@ if $@;
1314		3290
1315	warn "reloaded";	3291	warn "reloaded";
1316	};	3292	};
1317		3293
1318	sub perl_reload() {	3294	our $RELOAD_WATCHER; # used only during reload
1319	_perl_reload;
1320	}
1321		3295
1322	register "<global>", __PACKAGE__;	3296	sub reload_perl() {
		3297	# doing reload synchronously and two reloads happen back-to-back,
		3298	# coro crashes during coro_state_free->destroy here.
1323		3299
		3300	$RELOAD_WATCHER ||= Event->timer (
		3301	reentrant => 0,
		3302	after => 0,
		3303	data => WF_AUTOCANCEL,
		3304	cb => sub {
		3305	do_reload_perl;
		3306	undef $RELOAD_WATCHER;
		3307	},
		3308	);
		3309	}
		3310
1324	register_command "perl-reload" => sub {	3311	register_command "reload" => sub {
1325	my ($who, $arg) = @_;	3312	my ($who, $arg) = @_;
1326		3313
1327	if ($who->flag (FLAG_WIZ)) {	3314	if ($who->flag (FLAG_WIZ)) {
1328	$who->message ("reloading...");	3315	$who->message ("reloading server.");
1329	_perl_reload;	3316	async { reload_perl };
1330	}	3317	}
1331	};	3318	};
1332		3319
1333	unshift @INC, $LIBDIR;	3320	unshift @INC, $LIBDIR;
1334		3321
		3322	my $bug_warning = 0;
		3323
		3324	our @WAIT_FOR_TICK;
		3325	our @WAIT_FOR_TICK_BEGIN;
		3326
		3327	sub wait_for_tick {
		3328	return unless $TICK_WATCHER->is_active;
		3329	return if $Coro::current == $Coro::main;
		3330
		3331	my $signal = new Coro::Signal;
		3332	push @WAIT_FOR_TICK, $signal;
		3333	$signal->wait;
		3334	}
		3335
		3336	sub wait_for_tick_begin {
		3337	return unless $TICK_WATCHER->is_active;
		3338	return if $Coro::current == $Coro::main;
		3339
		3340	my $signal = new Coro::Signal;
		3341	push @WAIT_FOR_TICK_BEGIN, $signal;
		3342	$signal->wait;
		3343	}
		3344
		3345	my $min = 1e6;#d#
		3346	my $avg = 10;
1335	$TICK_WATCHER = Event->timer (	3347	$TICK_WATCHER = Event->timer (
1336	reentrant => 0,	3348	reentrant => 0,
		3349	parked => 1,
1337	prio => 0,	3350	prio => 0,
1338	at => $NEXT_TICK || $TICK,	3351	at => $NEXT_TICK || $TICK,
1339	data => WF_AUTOCANCEL,	3352	data => WF_AUTOCANCEL,
1340	cb => sub {	3353	cb => sub {
1341	unless ($FREEZE) {	3354	if ($Coro::current != $Coro::main) {
		3355	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3356	unless ++$bug_warning > 10;
		3357	return;
		3358	}
		3359
		3360	$NOW = $tick_start = Event::time;
		3361
1342	cf::server_tick; # one server iteration	3362	cf::server_tick; # one server iteration
1343	$RUNTIME += $TICK;	3363
		3364	0 && sync_job {#d#
		3365	for(1..10) {
		3366	my $t = Event::time;
		3367	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3368	or die;
		3369
		3370	$map->width (50);
		3371	$map->height (50);
		3372	$map->alloc;
		3373	$map->_load_objects ("/tmp/x.map", 1);
		3374	my $t = Event::time - $t;
		3375
		3376	#next unless $t < 0.0013;#d#
		3377	if ($t < $min) {
		3378	$min = $t;
		3379	}
		3380	$avg = $avg * 0.99 + $t * 0.01;
		3381	}
		3382	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3383	exit 0;
		3384	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1344	}	3385	};
1345		3386
		3387	$RUNTIME += $TICK;
1346	$NEXT_TICK += $TICK;	3388	$NEXT_TICK += $TICK;
1347		3389
		3390	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3391	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3392	Coro::async_pool {
		3393	write_runtime
		3394	or warn "ERROR: unable to write runtime file: $!";
		3395	};
		3396	}
		3397
		3398	# my $AFTER = Event::time;
		3399	# warn $AFTER - $NOW;#d#
		3400
		3401	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3402	$sig->send;
		3403	}
		3404	while (my $sig = shift @WAIT_FOR_TICK) {
		3405	$sig->send;
		3406	}
		3407
		3408	$NOW = Event::time;
		3409
1348	# if we are delayed by four ticks or more, skip them all	3410	# if we are delayed by four ticks or more, skip them all
1349	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3411	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1350		3412
1351	$TICK_WATCHER->at ($NEXT_TICK);	3413	$TICK_WATCHER->at ($NEXT_TICK);
1352	$TICK_WATCHER->start;	3414	$TICK_WATCHER->start;
		3415
		3416	$LOAD = ($NOW - $tick_start) / $TICK;
		3417	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3418
		3419	_post_tick;
		3420
		3421
1353	},	3422	},
1354	);	3423	);
1355		3424
		3425	{
		3426	BDB::max_poll_time $TICK * 0.1;
		3427	$BDB_POLL_WATCHER = Event->io (
		3428	reentrant => 0,
		3429	fd => BDB::poll_fileno,
		3430	poll => 'r',
		3431	prio => 0,
		3432	data => WF_AUTOCANCEL,
		3433	cb => \&BDB::poll_cb,
		3434	);
		3435	BDB::min_parallel 8;
		3436
		3437	BDB::set_sync_prepare {
		3438	my $status;
		3439	my $current = $Coro::current;
		3440	(
		3441	sub {
		3442	$status = $!;
		3443	$current->ready; undef $current;
		3444	},
		3445	sub {
		3446	Coro::schedule while defined $current;
		3447	$! = $status;
		3448	},
		3449	)
		3450	};
		3451
		3452	unless ($DB_ENV) {
		3453	$DB_ENV = BDB::db_env_create;
		3454
		3455	cf::sync_job {
		3456	eval {
		3457	BDB::db_env_open
		3458	$DB_ENV,
		3459	$BDBDIR,
		3460	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3461	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3462	0666;
		3463
		3464	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3465
		3466	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3467	$DB_ENV->set_lk_detect;
		3468	};
		3469
		3470	cf::cleanup "db_env_open(db): $@" if $@;
		3471	};
		3472	}
		3473	}
		3474
		3475	{
		3476	IO::AIO::min_parallel 8;
		3477
		3478	undef $Coro::AIO::WATCHER;
1356	IO::AIO::max_poll_time $TICK * 0.2;	3479	IO::AIO::max_poll_time $TICK * 0.1;
1357		3480	$AIO_POLL_WATCHER = Event->io (
1358	Event->io (fd => IO::AIO::poll_fileno,	3481	reentrant => 0,
1359	poll => 'r',
1360	prio => 5,
1361	data => WF_AUTOCANCEL,	3482	data => WF_AUTOCANCEL,
		3483	fd => IO::AIO::poll_fileno,
		3484	poll => 'r',
		3485	prio => 6,
1362	cb => \&IO::AIO::poll_cb);	3486	cb => \&IO::AIO::poll_cb,
		3487	);
		3488	}
1363		3489
1364	# we must not ever block the main coroutine	3490	my $_log_backtrace;
1365	$Coro::idle = sub {	3491
1366	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3492	sub _log_backtrace {
1367	warn "FATAL: Coro::idle was called, major BUG\n";	3493	my ($msg, @addr) = @_;
1368	(Coro::unblock_sub {	3494
1369	Event::one_event;	3495	$msg =~ s/\n//;
1370	})->();	3496
1371	};	3497	# limit the # of concurrent backtraces
		3498	if ($_log_backtrace < 2) {
		3499	++$_log_backtrace;
		3500	async {
		3501	my @bt = fork_call {
		3502	@addr = map { sprintf "%x", $_ } @addr;
		3503	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3504	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3505	or die "addr2line: $!";
		3506
		3507	my @funcs;
		3508	my @res = <$fh>;
		3509	chomp for @res;
		3510	while (@res) {
		3511	my ($func, $line) = splice @res, 0, 2, ();
		3512	push @funcs, "[$func] $line";
		3513	}
		3514
		3515	@funcs
		3516	};
		3517
		3518	LOG llevInfo, "[ABT] $msg\n";
		3519	LOG llevInfo, "[ABT] $_\n" for @bt;
		3520	--$_log_backtrace;
		3521	};
		3522	} else {
		3523	LOG llevInfo, "[ABT] $msg\n";
		3524	LOG llevInfo, "[ABT] [suppressed]\n";
		3525	}
		3526	}
		3527
		3528	# load additional modules
		3529	use cf::pod;
		3530
		3531	END { cf::emergency_save }
1372		3532
1373	1	3533	1
1374		3534

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