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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.113 by root, Mon Jan 1 15:32:40 2007 UTC vs.
Revision 1.363 by root, Mon Sep 10 17:24:36 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;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		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
26	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
27		44
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$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
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	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(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	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 $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available	118	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		119
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
106		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
123		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
124	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
147		218
148	$Event::DIED = sub {	219	$Event::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
160	=cut	229	=item dumpval $ref
161		230
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
163		251
164	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
165		253
166	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
167		255
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
176		257
177	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
178		259
179	=cut	260	=cut
180		261
181	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
183	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
		265	sub from_json ($) { $json_coder->decode ($_[0]) }
		266
		267	=item cf::lock_wait $string
		268
		269	Wait until the given lock is available. See cf::lock_acquire.
		270
		271	=item my $lock = cf::lock_acquire $string
		272
		273	Wait until the given lock is available and then acquires it and returns
		274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		275	for example when the coroutine gets canceled), the lock is automatically
		276	returned.
		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
		281	Lock names should begin with a unique identifier (for example, cf::map::find
		282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
		288	=cut
		289
		290	our %LOCK;
		291	our %LOCKER;#d#
		292
		293	sub lock_wait($) {
		294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
		300
		301	# wait for lock, if any
		302	while ($LOCK{$key}) {
		303	push @{ $LOCK{$key} }, $Coro::current;
		304	Coro::schedule;
		305	}
184	}	306	}
		307
		308	sub lock_acquire($) {
		309	my ($key) = @_;
		310
		311	# wait, to be sure we are not locked
		312	lock_wait $key;
		313
		314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
		316
		317	Coro::guard {
		318	delete $LOCKER{$key};#d#
		319	# wake up all waiters, to be on the safe side
		320	$_->ready for @{ delete $LOCK{$key} };
		321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
185		405
186	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
187		407
188	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
191		412
192	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
195	fast or be very important.	416	fast or be very important.
…		…
198		419
199	sub sync_job(&) {	420	sub sync_job(&) {
200	my ($job) = @_;	421	my ($job) = @_;
201		422
202	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
203	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
205		428
206	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	430	# (but this is cancel-safe)
208	local $FREEZE = 1;	431	my $freeze_guard = freeze_mainloop;
209		432
210	my $busy = 1;	433	my $busy = 1;
211	my @res;	434	my @res;
212		435
213	(Coro::async {	436	(async {
214	@res = eval { $job->() };	437	@res = eval { $job->() };
215	warn $@ if $@;	438	warn $@ if $@;
216	undef $busy;	439	undef $busy;
217	})->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
218		441
219	while ($busy) {	442	while ($busy) {
220	Coro::cede_notself;	443	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
223		452
224	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
225	} else {	454	} else {
226	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
227		456
228	$job->()	457	$job->()
229	}	458	}
230	}	459	}
231		460
232	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
233		462
234	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
236		465
237	=cut	466	=cut
238		467
239	sub coro(&) {	468	sub async_ext(&) {
240	my $cb = shift;	469	my $cb = shift;
241		470
242	my $coro; $coro = async {	471	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		472
249	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
251	});	475	});
252	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
253		477
254	$coro	478	$coro
255	}	479	}
256		480
257	sub write_runtime {	481	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		482
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
261	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
262		487
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		489
267	aio_fsync $fh	490	sub fork_call(&@) {
268	and return;	491	my ($cb, @args) = @_;
269		492
270	close $fh	493	# we seemingly have to make a local copy of the whole thing,
271	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
272		496
273	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
274	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
275		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
276	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	641	}
278		642
279	=back	643	=back
280		644
281	=cut	645	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		646
393	#############################################################################	647	#############################################################################
394		648
395	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
396		650
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
400		654
401	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	657	Crossfire TRT).
404		658
405	=over 4	659	=over 4
406		660
407	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
408		662
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	777	our @CB_MAP = ();
524		778
525	my %attachment;	779	my %attachment;
526		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
527	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
529		789
530	use sort 'stable';	790	use sort 'stable';
531		791
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
566		826
567	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		831
572	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	833	my $pkg = shift @arg;
574		834
575	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
605	}	865	}
606		866
607	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
608	} else {	868	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	870	}
611		871
612	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
613	}	873	}
614		874
…		…
616	if (ref $_[0]) {	876	if (ref $_[0]) {
617	_object_attach @_;	877	_object_attach @_;
618	} else {	878	} else {
619	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
620	}	880	}
		881	_recalc_want;
621	};	882	};
622		883
623	# all those should be optimised	884	# all those should be optimised
624	sub cf::attachable::detach {	885	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
629	reattach ($obj);	890	reattach ($obj);
630	} else {	891	} else {
631	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
632	}	893	}
		894	_recalc_want;
633	};	895	};
634		896
635	sub cf::attachable::attached {	897	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
637		899
…		…
652	";	914	";
653	die if $@;	915	die if $@;
654	}	916	}
655		917
656	our $override;	918	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		920
659	sub override {	921	sub override {
660	$override = 1;	922	$override = 1;
661	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
662	}	924	}
663		925
664	sub do_invoke {	926	sub do_invoke {
665	my $event = shift;	927	my $event = shift;
666	my $callbacks = shift;	928	my $callbacks = shift;
667		929
668	@invoke_results = ();	930	@INVOKE_RESULTS = ();
669		931
670	local $override;	932	local $override;
671		933
672	for (@$callbacks) {	934	for (@$callbacks) {
673	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
690		952
691	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
692		954
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		958
697	=back	959	=back
698		960
699	=cut	961	=cut
700		962
701	#############################################################################	963	#############################################################################
702	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
703		976
704	sub reattach {	977	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		982
708	my $registry = $obj->registry;	983	my $registry = $obj->registry;
709		984
710	@$registry = ();	985	@$registry = ();
711		986
…		…
750	);	1025	);
751		1026
752	sub object_freezer_save {	1027	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
754		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
755	sync_job {	1032	sync_job {
756	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
759		1037
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1042	close $fh;
765		1043
766	if (@$objs) {	1044	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	1050	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
774	}	1052	}
775	} else {	1053	} else {
776	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
782	}	1060	}
783	} else {	1061	} else {
784	aio_unlink $filename;	1062	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
786	}	1064	}
787	}	1065	};
		1066
		1067	undef $guard;
788	}	1068	}
789		1069
790	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
792		1072
…		…
797		1077
798	sub object_thawer_load {	1078	sub object_thawer_load {
799	my ($filename) = @_;	1079	my ($filename) = @_;
800		1080
801	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
802		1084
803	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
804	or return;	1086	or return;
805		1087
806	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
808	or return;	1090	or return;
		1091
		1092	undef $guard;
809	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
810	}	1094	}
811		1095
		1096	utf8::decode (my $decname = $filename);
		1097	warn sprintf "loading %s (%d,%d)\n",
		1098	$decname, length $data, scalar @{$av || []};
		1099
812	return ($data, $av);	1100	($data, $av)
813	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
814		1108
815	#############################################################################	1109	#############################################################################
816	# command handling &c	1110	# command handling &c
817		1111
818	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1126	}
833		1127
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1129
836	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
837		1135
838	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
839	called.	1137	called.
840		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
841	=cut	1150	=cut
842		1151
843	sub register_extcmd {	1152	sub register_extcmd {
844	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
845		1154
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
850	}	1162	}
851		1163
852	cf::player->attach (	1164	cf::player->attach (
853	on_command => sub {	1165	on_command => sub {
854	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
863	cf::override;	1175	cf::override;
864	},	1176	},
865	on_extcmd => sub {	1177	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
867		1179
868	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1181
870	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
876	} else {	1197	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1199	}
879		1200
880	cf::override;	1201	cf::override;
881	},	1202	},
882	);	1203	);
883		1204
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
891	my ($path) = @_;	1603	my ($path) = @_;
892		1604
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1606
899	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
900		1608	if ($region->{match} && $path =~ $region->{match}) {
901	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1610	if $region->specificity > $specificity;
903		1611	}
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	1612	}
933		1613
934	# remove commands	1614	$match
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}
959
960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;
963	eval {
964	load_extension $ext;
965	1
966	} or warn "$ext not loaded: $@";
967	}
968	}
969
970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007
1008	=head2 CORE EXTENSIONS
1009
1010	Functions and methods that extend core crossfire objects.
1011
1012	=head3 cf::player
1013
1014	=over 4
1015
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut
1021
1022	sub cf::player::exists($) {
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028
1029	Sends an ext reply to the player.
1030
1031	=cut
1032
1033	sub cf::player::ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;
1035
1036	$msg{msgid} = $id;
1037
1038	$self->send ("ext " . to_json \%msg);
1039	}	1615	}
1040		1616
1041	=back	1617	=back
1042
1043		1618
1044	=head3 cf::map	1619	=head3 cf::map
1045		1620
1046	=over 4	1621	=over 4
1047		1622
…		…
1050	package cf::map;	1625	package cf::map;
1051		1626
1052	use Fcntl;	1627	use Fcntl;
1053	use Coro::AIO;	1628	use Coro::AIO;
1054		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1055	our $MAX_RESET = 7200;	1634	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1635	our $DEFAULT_RESET = 3000;
1057		1636
1058	sub generate_random_map {	1637	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1640	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1075	}	1780	}
1076		1781
1077	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1078	# all maps in C++...	1783	# all maps in C++...
1079	sub change_all_map_light {	1784	sub change_all_map_light {
1080	my ($change) = @_;	1785	my ($change) = @_;
1081		1786
1082	$_->change_map_light ($change) for values %cf::MAP;	1787	$_->change_map_light ($change)
		1788	for grep $_->outdoor, values %cf::MAP;
1083	}	1789	}
1084		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1085	sub try_load_header($) {	1807	sub load_header_from($) {
1086	my ($path) = @_;	1808	my ($self, $path) = @_;
1087		1809
1088	utf8::encode $path;	1810	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1090	or return;	1812	or return;
1091		1813
1092	my $map = cf::map::new	1814	$self->_load_header ($f)
1093	or return;	1815	or return;
1094		1816
1095	$map->load_header ($path)	1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1096	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1097		1866
1098	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1099		1869
1100	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	1871	unless $self->default_region;
1102		1872
		1873	1
		1874	}
		1875
		1876	sub find;
1103	sub find_map {	1877	sub find {
1104	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1105		1879
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
		1883	cf::lock_wait "map_find:$path";
		1884
1111	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1112	# do it the slow way	1886	my $guard1 = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1114		1888
1115	if ($map) {	1889	my $map = new_from_path cf::map $path
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1890	or return;
1127		1891
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1892	$map->{last_save} = $cf::RUNTIME;
1139		1893
1140	if ($map->should_reset) {	1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1141	$map->reset;	1902	$map->reset;
1142	$map = find_map $path;	1903	return find $path;
1143	}	1904	}
1144		1905
1145	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1146	}	1907	}
1147	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1148		1912
1149	sub load {	1913	sub load {
1150	my ($self) = @_;	1914	my ($self) = @_;
1151		1915
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1916	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1917
1156	my $path = $self->{path};	1918	my $path = $self->{path};
1157		1919
		1920	{
		1921	my $guard = cf::lock_acquire "map_data:$path";
		1922
		1923	return unless $self->valid;
		1924	return unless $self->in_memory == cf::MAP_SWAPPED;
		1925
		1926	$self->in_memory (cf::MAP_LOADING);
		1927
1158	$self->alloc;	1928	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1160	or return;	1936	or return;
1161		1937
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1939	if delete $self->{load_original};
1164		1940
1165	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1942	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	1945	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1170	}	1949	}
1171	}	1950	}
1172		1951
		1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1173	# now do the right thing for maps	1955	# now do the right thing for maps
1174	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1186	$self->activate;	1968	$self->activate;
1187	}	1969	}
1188		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1975	}
1191		1976
1192	sub load_map_sync {	1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
		2016	}
		2017
		2018	sub find_sync {
1193	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1194		2020
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2021	cf::sync_job { find $path, $origin }
		2022	}
1196		2023
1197	cf::sync_job {	2024	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	2025	my ($map) = @_;
1199	or return;	2026
1200	$map->load;	2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1201	$map	2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
1202	}	2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1203	}	2062	}
1204		2063
1205	sub save {	2064	sub save {
1206	my ($self) = @_;	2065	my ($self) = @_;
1207		2066
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2068
1211	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1212		2070
1213	return unless $self->dirty;	2071	return unless $self->dirty;
1214		2072
		2073	my $save = $self->save_path; utf8::encode $save;
		2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2075
1215	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1216		2077
1217	return if $self->{deny_save};	2078	return if $self->{deny_save};
1218		2079
		2080	local $self->{last_access} = $self->last_access;#d#
		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
		2085
1219	if ($uniq) {	2086	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	2089	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	2091	}
1225	}	2092	}
1226		2093
1227	sub swap_out {	2094	sub swap_out {
1228	my ($self) = @_;	2095	my ($self) = @_;
		2096
		2097	# save first because save cedes
		2098	$self->save;
		2099
		2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1229		2101
1230	return if $self->players;	2102	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	2104	return if $self->{deny_save};
1233		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
1234	$self->save;	2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1235	$self->clear;	2110	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2111	}
1238		2112
1239	sub reset_at {	2113	sub reset_at {
1240	my ($self) = @_;	2114	my ($self) = @_;
1241		2115
1242	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1245		2118
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2121
1250	$time + $to	2122	$time + $to
1251	}	2123	}
1252		2124
1253	sub should_reset {	2125	sub should_reset {
1254	my ($self) = @_;	2126	my ($self) = @_;
1255		2127
1256	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1257	}	2129	}
1258		2130
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub rename {
1268	my ($self, $new_path) = @_;
1269
1270	$self->unlink_save;
1271
1272	delete $cf::MAP{$self->path};
1273	$self->{path} = new cf::path $new_path;
1274	$self->path ($self->{path}->path);
1275	$cf::MAP{$self->path} = $self;
1276
1277	$self->save;
1278	}
1279
1280	sub reset {	2131	sub reset {
1281	my ($self) = @_;	2132	my ($self) = @_;
1282		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2135
1283	return if $self->players;	2136	return if $self->players;
1284	return if $self->{path}{user_rel};#d#
1285		2137
1286	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1287		2149
1288	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1289		2151
		2152	$self->deactivate;
1290	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1291		2155
1292	$self->unlink_save;	2156	$self->unlink_save;
1293	$self->destroy;	2157	$self->destroy;
1294	}	2158	}
1295		2159
1296	sub customise_for {	2160	my $nuke_counter = "aaaa";
1297	my ($map, $ob) = @_;
1298		2161
1299	if ($map->per_player) {	2162	sub nuke {
1300	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2163	my ($self) = @_;
		2164
1301	}	2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2167
1303	$map	2168	delete $cf::MAP{$self->path};
1304	}
1305		2169
1306	sub emergency_save {	2170	$self->unlink_save;
1307	local $cf::FREEZE = 1;
1308		2171
1309	warn "enter emergency map save\n";	2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
		2174	$self->{deny_save} = 1;
		2175	$self->reset_timeout (1);
		2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1310		2177
1311	cf::sync_job {	2178	$cf::MAP{$self->path} = $self;
1312	warn "begin emergency map save\n";
1313	$_->save for values %cf::MAP;
1314	};	2179	}
1315		2180
1316	warn "end emergency map save\n";	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1317	}	2236	}
1318		2237
1319	package cf;	2238	package cf;
1320		2239
1321	=back	2240	=back
1322		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1323		2299
1324	=head3 cf::object::player	2300	=head3 cf::object::player
1325		2301
1326	=over 4	2302	=over 4
1327		2303
…		…
1341		2317
1342	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1343		2319
1344	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1345	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1346	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1347	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1348	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1349	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1350	}	2345	}
1351		2346
1352	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1353		2348
1354	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1363	(ref $cf::CFG{"may_$access"}	2358	(ref $cf::CFG{"may_$access"}
1364	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2359	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1365	: $cf::CFG{"may_$access"})	2360	: $cf::CFG{"may_$access"})
1366	}	2361	}
1367		2362
		2363	=item $player_object->enter_link
		2364
		2365	Freezes the player and moves him/her to a special map (C<{link}>).
		2366
		2367	The player should be reasonably safe there for short amounts of time. You
		2368	I<MUST> call C<leave_link> as soon as possible, though.
		2369
		2370	Will never block.
		2371
		2372	=item $player_object->leave_link ($map, $x, $y)
		2373
		2374	Moves the player out of the special C<{link}> map onto the specified
		2375	map. If the map is not valid (or omitted), the player will be moved back
		2376	to the location he/she was before the call to C<enter_link>, or, if that
		2377	fails, to the emergency map position.
		2378
		2379	Might block.
		2380
		2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
		2392
1368	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1369	my ($self) = @_;	2394	my ($self) = @_;
1370		2395
1371	return if $self->map == $LINK_MAP;
1372
1373	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1374	if $self->map;
1375
1376	$self->enter_map ($LINK_MAP, 20, 20);
1377	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
		2397
		2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2399
		2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2401	if $self->map && $self->map->{path} ne "{link}";
		2402
		2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1378	}	2404	}
1379		2405
1380	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1381	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
1382		2408
		2409	return unless $self->contr->active;
		2410
1383	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1384		2412
1385	unless ($map) {	2413	unless ($map) {
1386	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1387
1388	# restore original map position	2414	# restore original map position
1389	($map, $x, $y) = @{ $link_pos || [] };	2415	($map, $x, $y) = @{ $link_pos || [] };
1390	$map = cf::map::find_map $map;	2416	$map = cf::map::find $map;
1391		2417
1392	unless ($map) {	2418	unless ($map) {
1393	($map, $x, $y) = @$EMERGENCY_POSITION;	2419	($map, $x, $y) = @$EMERGENCY_POSITION;
1394	$map = cf::map::find_map $map	2420	$map = cf::map::find $map
1395	or die "FATAL: cannot load emergency map\n";	2421	or die "FATAL: cannot load emergency map\n";
1396	}	2422	}
1397	}	2423	}
1398		2424
1399	($x, $y) = (-1, -1)	2425	($x, $y) = (-1, -1)
…		…
1402	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1403	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1404	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1405		2431
1406	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1407		2434
		2435	return unless $self->contr->active;
1408	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1409	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1410	}	2440	}
1411		2441
1412	=item $player_object->goto_map ($map, $x, $y)	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1413		2443
1414	=cut	2444	Moves the player to the given map-path and coordinates by first freezing
		2445	her, loading and preparing them map, calling the provided $check callback
		2446	that has to return the map if sucecssful, and then unfreezes the player on
		2447	the new (success) or old (failed) map position. In either case, $done will
		2448	be called at the end of this process.
1415		2449
		2450	=cut
		2451
		2452	our $GOTOGEN;
		2453
1416	sub cf::object::player::goto_map {	2454	sub cf::object::player::goto {
1417	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1418		2459
1419	$self->enter_link;	2460	$self->enter_link;
1420		2461
1421	(Coro::async {	2462	(async {
1422	$path = new cf::path $path;	2463	my $map = eval {
1423
1424	my $map = cf::map::find_map $path->as_string;	2464	my $map = cf::map::find $path;
		2465
		2466	if ($map) {
1425	$map = $map->customise_for ($self) if $map;	2467	$map = $map->customise_for ($self);
		2468	$map = $check->($map) if $check && $map;
		2469	} else {
		2470	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
1426		2472
1427	warn "entering ", $map->path, " at ($x, $y)\n"
1428	if $map;	2473	$map
		2474	};
1429		2475
		2476	if ($@) {
		2477	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2478	LOG llevError | logBacktrace, Carp::longmess $@;
		2479	}
		2480
		2481	if ($gen == $self->{_goto_generation}) {
		2482	delete $self->{_goto_generation};
1430	$self->leave_link ($map, $x, $y);	2483	$self->leave_link ($map, $x, $y);
		2484	}
		2485
		2486	$done->() if $done;
1431	})->prio (1);	2487	})->prio (1);
1432	}	2488	}
1433		2489
1434	=item $player_object->enter_exit ($exit_object)	2490	=item $player_object->enter_exit ($exit_object)
1435		2491
…		…
1437		2493
1438	sub parse_random_map_params {	2494	sub parse_random_map_params {
1439	my ($spec) = @_;	2495	my ($spec) = @_;
1440		2496
1441	my $rmp = { # defaults	2497	my $rmp = { # defaults
1442	xsize => 10,	2498	xsize => (cf::rndm 15, 40),
1443	ysize => 10,	2499	ysize => (cf::rndm 15, 40),
		2500	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2501	#layout => string,
1444	};	2502	};
1445		2503
1446	for (split /\n/, $spec) {	2504	for (split /\n/, $spec) {
1447	my ($k, $v) = split /\s+/, $_, 2;	2505	my ($k, $v) = split /\s+/, $_, 2;
1448		2506
…		…
1452	$rmp	2510	$rmp
1453	}	2511	}
1454		2512
1455	sub prepare_random_map {	2513	sub prepare_random_map {
1456	my ($exit) = @_;	2514	my ($exit) = @_;
		2515
		2516	my $guard = cf::lock_acquire "exit_prepare:$exit";
1457		2517
1458	# all this does is basically replace the /! path by	2518	# all this does is basically replace the /! path by
1459	# a new random map path (?random/...) with a seed	2519	# a new random map path (?random/...) with a seed
1460	# that depends on the exit object	2520	# that depends on the exit object
1461		2521
1462	my $rmp = parse_random_map_params $exit->msg;	2522	my $rmp = parse_random_map_params $exit->msg;
1463		2523
1464	if ($exit->map) {	2524	if ($exit->map) {
1465	$rmp->{region} = $exit->map->region_name;	2525	$rmp->{region} = $exit->region->name;
1466	$rmp->{origin_map} = $exit->map->path;	2526	$rmp->{origin_map} = $exit->map->path;
1467	$rmp->{origin_x} = $exit->x;	2527	$rmp->{origin_x} = $exit->x;
1468	$rmp->{origin_y} = $exit->y;	2528	$rmp->{origin_y} = $exit->y;
1469	}	2529	}
1470		2530
1471	$rmp->{random_seed} ||= $exit->random_seed;	2531	$rmp->{random_seed} ||= $exit->random_seed;
1472		2532
1473	my $data = cf::to_json $rmp;	2533	my $data = cf::to_json $rmp;
1474	my $md5 = Digest::MD5::md5_hex $data;	2534	my $md5 = Digest::MD5::md5_hex $data;
		2535	my $meta = "$RANDOMDIR/$md5.meta";
1475		2536
1476	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2537	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1477	aio_write $fh, 0, (length $data), $data, 0;	2538	aio_write $fh, 0, (length $data), $data, 0;
		2539	undef $fh;
		2540	aio_rename "$meta~", $meta;
1478		2541
1479	$exit->slaying ("?random/$md5");	2542	$exit->slaying ("?random/$md5");
1480	$exit->msg (undef);	2543	$exit->msg (undef);
1481	}	2544	}
1482	}	2545	}
…		…
1484	sub cf::object::player::enter_exit {	2547	sub cf::object::player::enter_exit {
1485	my ($self, $exit) = @_;	2548	my ($self, $exit) = @_;
1486		2549
1487	return unless $self->type == cf::PLAYER;	2550	return unless $self->type == cf::PLAYER;
1488		2551
		2552	if ($exit->slaying eq "/!") {
		2553	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2554	# the problem is that $exit might not survive long enough
		2555	# so it needs to be done right now, right here
		2556	cf::sync_job { prepare_random_map $exit };
		2557	}
		2558
		2559	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2560	my $hp = $exit->stats->hp;
		2561	my $sp = $exit->stats->sp;
		2562
1489	$self->enter_link;	2563	$self->enter_link;
1490		2564
		2565	# if exit is damned, update players death & WoR home-position
		2566	$self->contr->savebed ($slaying, $hp, $sp)
		2567	if $exit->flag (FLAG_DAMNED);
		2568
1491	(Coro::async {	2569	(async {
		2570	$self->deactivate_recursive; # just to be sure
1492	unless (eval {	2571	unless (eval {
1493		2572	$self->goto ($slaying, $hp, $sp);
1494	prepare_random_map $exit
1495	if $exit->slaying eq "/!";
1496
1497	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1498	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1499		2573
1500	1;	2574	1;
1501	}) {	2575	}) {
1502	$self->message ("Something went wrong deep within the crossfire server. "	2576	$self->message ("Something went wrong deep within the crossfire server. "
1503	. "I'll try to bring you back to the map you were before. "	2577	. "I'll try to bring you back to the map you were before. "
1504	. "Please report this to the dungeon master",	2578	. "Please report this to the dungeon master!",
1505	cf::NDI_UNIQUE | cf::NDI_RED);	2579	cf::NDI_UNIQUE | cf::NDI_RED);
1506		2580
1507	warn "ERROR in enter_exit: $@";	2581	warn "ERROR in enter_exit: $@";
1508	$self->leave_link;	2582	$self->leave_link;
1509	}	2583	}
1510	})->prio (1);	2584	})->prio (1);
…		…
1523		2597
1524	sub cf::client::send_drawinfo {	2598	sub cf::client::send_drawinfo {
1525	my ($self, $text, $flags) = @_;	2599	my ($self, $text, $flags) = @_;
1526		2600
1527	utf8::encode $text;	2601	utf8::encode $text;
1528	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2602	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1529	}	2603	}
1530		2604
		2605	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2606
		2607	Send a drawinfo or msg packet to the client, formatting the msg for the
		2608	client if neccessary. C<$type> should be a string identifying the type of
		2609	the message, with C<log> being the default. If C<$color> is negative, suppress
		2610	the message unless the client supports the msg packet.
		2611
		2612	=cut
		2613
		2614	our %CHANNEL = (
		2615	"c/identify" => {
		2616	id => "identify",
		2617	title => "Identify",
		2618	reply => undef,
		2619	tooltip => "Items recently identified",
		2620	},
		2621	"c/examine" => {
		2622	id => "examine",
		2623	title => "Examine",
		2624	reply => undef,
		2625	tooltip => "Signs and other items you examined",
		2626	},
		2627	);
		2628
		2629	sub cf::client::send_msg {
		2630	my ($self, $channel, $msg, $color, @extra) = @_;
		2631
		2632	$msg = $self->pl->expand_cfpod ($msg);
		2633
		2634	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2635
		2636	# check predefined channels, for the benefit of C
		2637	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2638
		2639	if (ref $channel) {
		2640	# send meta info to client, if not yet sent
		2641	unless (exists $self->{channel}{$channel->{id}}) {
		2642	$self->{channel}{$channel->{id}} = $channel;
		2643	$self->ext_msg (channel_info => $channel)
		2644	if $self->can_msg;
		2645	}
		2646
		2647	$channel = $channel->{id};
		2648	}
		2649
		2650	return unless @extra || length $msg;
		2651
		2652	if ($self->can_msg) {
		2653	# default colour, mask it out
		2654	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2655	if $color & cf::NDI_DEF;
		2656
		2657	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2658	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2659	} else {
		2660	if ($color >= 0) {
		2661	# replace some tags by gcfclient-compatible ones
		2662	for ($msg) {
		2663	1 while
		2664	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2665	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2666	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2667	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2668	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2669	}
		2670
		2671	$color &= cf::NDI_COLOR_MASK;
		2672
		2673	utf8::encode $msg;
		2674
		2675	if (0 && $msg =~ /\[/) {
		2676	# COMMAND/INFO
		2677	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2678	} else {
		2679	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2680	$self->send_packet ("drawinfo $color $msg")
		2681	}
		2682	}
		2683	}
		2684	}
		2685
		2686	=item $client->ext_msg ($type, @msg)
		2687
		2688	Sends an ext event to the client.
		2689
		2690	=cut
		2691
		2692	sub cf::client::ext_msg($$@) {
		2693	my ($self, $type, @msg) = @_;
		2694
		2695	if ($self->extcmd == 2) {
		2696	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2697	} elsif ($self->extcmd == 1) { # TODO: remove
		2698	push @msg, msgtype => "event_$type";
		2699	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2700	}
		2701	}
		2702
		2703	=item $client->ext_reply ($msgid, @msg)
		2704
		2705	Sends an ext reply to the client.
		2706
		2707	=cut
		2708
		2709	sub cf::client::ext_reply($$@) {
		2710	my ($self, $id, @msg) = @_;
		2711
		2712	if ($self->extcmd == 2) {
		2713	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2714	} elsif ($self->extcmd == 1) {
		2715	#TODO: version 1, remove
		2716	unshift @msg, msgtype => "reply", msgid => $id;
		2717	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2718	}
		2719	}
1531		2720
1532	=item $success = $client->query ($flags, "text", \&cb)	2721	=item $success = $client->query ($flags, "text", \&cb)
1533		2722
1534	Queues a query to the client, calling the given callback with	2723	Queues a query to the client, calling the given callback with
1535	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2724	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1536	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2725	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1537		2726
1538	Queries can fail, so check the return code. Or don't, as queries will become	2727	Queries can fail, so check the return code. Or don't, as queries will
1539	reliable at some point in the future.	2728	become reliable at some point in the future.
1540		2729
1541	=cut	2730	=cut
1542		2731
1543	sub cf::client::query {	2732	sub cf::client::query {
1544	my ($self, $flags, $text, $cb) = @_;	2733	my ($self, $flags, $text, $cb) = @_;
…		…
1552	utf8::encode $text;	2741	utf8::encode $text;
1553	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2742	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1554		2743
1555	$self->send_packet ($self->{query_queue}[0][0])	2744	$self->send_packet ($self->{query_queue}[0][0])
1556	if @{ $self->{query_queue} } == 1;	2745	if @{ $self->{query_queue} } == 1;
		2746
		2747	1
1557	}	2748	}
1558		2749
1559	cf::client->attach (	2750	cf::client->attach (
		2751	on_connect => sub {
		2752	my ($ns) = @_;
		2753
		2754	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2755	},
1560	on_reply => sub {	2756	on_reply => sub {
1561	my ($ns, $msg) = @_;	2757	my ($ns, $msg) = @_;
1562		2758
1563	# this weird shuffling is so that direct followup queries	2759	# this weird shuffling is so that direct followup queries
1564	# get handled first	2760	# get handled first
1565	my $queue = delete $ns->{query_queue};	2761	my $queue = delete $ns->{query_queue}
		2762	or return; # be conservative, not sure how that can happen, but we saw a crash here
1566		2763
1567	(shift @$queue)->[1]->($msg);	2764	(shift @$queue)->[1]->($msg);
		2765	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1568		2766
1569	push @{ $ns->{query_queue} }, @$queue;	2767	push @{ $ns->{query_queue} }, @$queue;
1570		2768
1571	if (@{ $ns->{query_queue} } == @$queue) {	2769	if (@{ $ns->{query_queue} } == @$queue) {
1572	if (@$queue) {	2770	if (@$queue) {
…		…
1574	} else {	2772	} else {
1575	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2773	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1576	}	2774	}
1577	}	2775	}
1578	},	2776	},
		2777	on_exticmd => sub {
		2778	my ($ns, $buf) = @_;
		2779
		2780	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2781
		2782	if (ref $msg) {
		2783	my ($type, $reply, @payload) =
		2784	"ARRAY" eq ref $msg
		2785	? @$msg
		2786	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2787
		2788	my @reply;
		2789
		2790	if (my $cb = $EXTICMD{$type}) {
		2791	@reply = $cb->($ns, @payload);
		2792	}
		2793
		2794	$ns->ext_reply ($reply, @reply)
		2795	if $reply;
		2796
		2797	} else {
		2798	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2799	}
		2800
		2801	cf::override;
		2802	},
1579	);	2803	);
1580		2804
1581	=item $client->coro (\&cb)	2805	=item $client->async (\&cb)
1582		2806
1583	Create a new coroutine, running the specified callback. The coroutine will	2807	Create a new coroutine, running the specified callback. The coroutine will
1584	be automatically cancelled when the client gets destroyed (e.g. on logout,	2808	be automatically cancelled when the client gets destroyed (e.g. on logout,
1585	or loss of connection).	2809	or loss of connection).
1586		2810
1587	=cut	2811	=cut
1588		2812
1589	sub cf::client::coro {	2813	sub cf::client::async {
1590	my ($self, $cb) = @_;	2814	my ($self, $cb) = @_;
1591		2815
1592	my $coro; $coro = async {	2816	my $coro = &Coro::async ($cb);
1593	eval {
1594	$cb->();
1595	};
1596	warn $@ if $@;
1597	};
1598		2817
1599	$coro->on_destroy (sub {	2818	$coro->on_destroy (sub {
1600	delete $self->{_coro}{$coro+0};	2819	delete $self->{_coro}{$coro+0};
1601	});	2820	});
1602		2821
…		…
1629	our $safe = new Safe "safe";	2848	our $safe = new Safe "safe";
1630	our $safe_hole = new Safe::Hole;	2849	our $safe_hole = new Safe::Hole;
1631		2850
1632	$SIG{FPE} = 'IGNORE';	2851	$SIG{FPE} = 'IGNORE';
1633		2852
1634	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2853	$safe->permit_only (Opcode::opset qw(
		2854	:base_core :base_mem :base_orig :base_math
		2855	grepstart grepwhile mapstart mapwhile
		2856	sort time
		2857	));
1635		2858
1636	# here we export the classes and methods available to script code	2859	# here we export the classes and methods available to script code
1637		2860
1638	=pod	2861	=pod
1639		2862
1640	The following fucntions and emthods are available within a safe environment:	2863	The following functions and methods are available within a safe environment:
1641		2864
1642	cf::object contr pay_amount pay_player map	2865	cf::object
		2866	contr pay_amount pay_player map x y force_find force_add
		2867	insert remove name archname title slaying race decrease_ob_nr
		2868
1643	cf::object::player player	2869	cf::object::player
1644	cf::player peaceful	2870	player
1645	cf::map trigger	2871
		2872	cf::player
		2873	peaceful
		2874
		2875	cf::map
		2876	trigger
1646		2877
1647	=cut	2878	=cut
1648		2879
1649	for (	2880	for (
1650	["cf::object" => qw(contr pay_amount pay_player map)],	2881	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2882	insert remove inv name archname title slaying race
		2883	decrease_ob_nr)],
1651	["cf::object::player" => qw(player)],	2884	["cf::object::player" => qw(player)],
1652	["cf::player" => qw(peaceful)],	2885	["cf::player" => qw(peaceful)],
1653	["cf::map" => qw(trigger)],	2886	["cf::map" => qw(trigger)],
1654	) {	2887	) {
1655	no strict 'refs';	2888	no strict 'refs';
…		…
1726	=back	2959	=back
1727		2960
1728	=cut	2961	=cut
1729		2962
1730	#############################################################################	2963	#############################################################################
		2964	# the server's init and main functions
1731		2965
1732	=head2 EXTENSION DATABASE SUPPORT	2966	sub load_facedata($) {
		2967	my ($path) = @_;
1733		2968
1734	Crossfire maintains a very simple database for extension use. It can	2969	# HACK to clear player env face cache, we need some signal framework
1735	currently store anything that can be serialised using Storable, which	2970	# for this (global event?)
1736	excludes objects.	2971	%ext::player_env::MUSIC_FACE_CACHE = ();
1737		2972
1738	The parameter C<$family> should best start with the name of the extension	2973	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1739	using it, it should be unique.
1740		2974
1741	=over 4	2975	warn "loading facedata from $path\n";
1742		2976
1743	=item $hashref = cf::db_get $family	2977	my $facedata;
		2978	0 < aio_load $path, $facedata
		2979	or die "$path: $!";
1744		2980
1745	Return a hashref for use by the extension C<$family>, which can be	2981	$facedata = Coro::Storable::thaw $facedata;
1746	modified. After modifications, you have to call C<cf::db_dirty> or
1747	C<cf::db_sync>.
1748		2982
1749	=item $value = cf::db_get $family => $key	2983	$facedata->{version} == 2
		2984	or cf::cleanup "$path: version mismatch, cannot proceed.";
1750		2985
1751	Returns a single value from the database	2986	# patch in the exptable
1752		2987	$facedata->{resource}{"res/exp_table"} = {
1753	=item cf::db_put $family => $hashref	2988	type => FT_RSRC,
1754		2989	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1755	Stores the given family hashref into the database. Updates are delayed, if
1756	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1757
1758	=item cf::db_put $family => $key => $value
1759
1760	Stores the given C<$value> in the family hash. Updates are delayed, if you
1761	want the data to be synced to disk immediately, use C<cf::db_sync>.
1762
1763	=item cf::db_dirty
1764
1765	Marks the database as dirty, to be updated at a later time.
1766
1767	=item cf::db_sync
1768
1769	Immediately write the database to disk I<if it is dirty>.
1770
1771	=cut
1772
1773	our $DB;
1774
1775	{
1776	my $path = cf::localdir . "/database.pst";
1777
1778	sub db_load() {
1779	warn "loading database $path\n";#d# remove later
1780	$DB = stat $path ? Storable::retrieve $path : { };
1781	}
1782
1783	my $pid;
1784
1785	sub db_save() {
1786	warn "saving database $path\n";#d# remove later
1787	waitpid $pid, 0 if $pid;
1788	if (0 == ($pid = fork)) {
1789	$DB->{_meta}{version} = 1;
1790	Storable::nstore $DB, "$path~";
1791	rename "$path~", $path;
1792	cf::_exit 0 if defined $pid;
1793	}
1794	}
1795
1796	my $dirty;
1797
1798	sub db_sync() {
1799	db_save if $dirty;
1800	undef $dirty;
1801	}
1802
1803	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1804	db_sync;
1805	});	2990	};
		2991	cf::cede_to_tick;
1806		2992
1807	sub db_dirty() {
1808	$dirty = 1;
1809	$idle->start;
1810	}	2993	{
		2994	my $faces = $facedata->{faceinfo};
1811		2995
1812	sub db_get($;$) {	2996	while (my ($face, $info) = each %$faces) {
1813	@_ >= 2	2997	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1814	? $DB->{$_[0]}{$_[1]}	2998	cf::face::set_visibility $idx, $info->{visibility};
1815	: ($DB->{$_[0]} ||= { })	2999	cf::face::set_magicmap $idx, $info->{magicmap};
1816	}	3000	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3001	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1817		3002
1818	sub db_put($$;$) {	3003	cf::cede_to_tick;
1819	if (@_ >= 3) {
1820	$DB->{$_[0]}{$_[1]} = $_[2];
1821	} else {
1822	$DB->{$_[0]} = $_[1];
1823	}
1824	db_dirty;
1825	}
1826
1827	cf::global->attach (
1828	prio => 10000,
1829	on_cleanup => sub {
1830	db_sync;
1831	},	3004	}
1832	);
1833	}
1834		3005
1835	#############################################################################	3006	while (my ($face, $info) = each %$faces) {
1836	# the server's main()	3007	next unless $info->{smooth};
		3008	my $idx = cf::face::find $face
		3009	or next;
		3010	if (my $smooth = cf::face::find $info->{smooth}) {
		3011	cf::face::set_smooth $idx, $smooth;
		3012	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3013	} else {
		3014	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3015	}
1837		3016
1838	sub cfg_load {	3017	cf::cede_to_tick;
		3018	}
		3019	}
		3020
		3021	{
		3022	my $anims = $facedata->{animinfo};
		3023
		3024	while (my ($anim, $info) = each %$anims) {
		3025	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3026	cf::cede_to_tick;
		3027	}
		3028
		3029	cf::anim::invalidate_all; # d'oh
		3030	}
		3031
		3032	{
		3033	# TODO: for gcfclient pleasure, we should give resources
		3034	# that gcfclient doesn't grok a >10000 face index.
		3035	my $res = $facedata->{resource};
		3036
		3037	my $soundconf = delete $res->{"res/sound.conf"};
		3038
		3039	while (my ($name, $info) = each %$res) {
		3040	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3041	my $data;
		3042
		3043	if ($info->{type} & 1) {
		3044	# prepend meta info
		3045
		3046	my $meta = $enc->encode ({
		3047	name => $name,
		3048	%{ $info->{meta} || {} },
		3049	});
		3050
		3051	$data = pack "(w/a*)*", $meta, $info->{data};
		3052	} else {
		3053	$data = $info->{data};
		3054	}
		3055
		3056	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3057	cf::face::set_type $idx, $info->{type};
		3058
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	if ($soundconf) {
		3063	$soundconf = $enc->decode (delete $soundconf->{data});
		3064
		3065	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3066	my $sound = $soundconf->{compat}[$_]
		3067	or next;
		3068
		3069	my $face = cf::face::find "sound/$sound->[1]";
		3070	cf::sound::set $sound->[0] => $face;
		3071	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3072	}
		3073
		3074	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3075	my $face = cf::face::find "sound/$v";
		3076	cf::sound::set $k => $face;
		3077	}
		3078	}
		3079	}
		3080
		3081	1
		3082	}
		3083
		3084	register_exticmd fx_want => sub {
		3085	my ($ns, $want) = @_;
		3086
		3087	while (my ($k, $v) = each %$want) {
		3088	$ns->fx_want ($k, $v);
		3089	}
		3090	};
		3091
		3092	sub reload_regions {
		3093	# HACK to clear player env face cache, we need some signal framework
		3094	# for this (global event?)
		3095	%ext::player_env::MUSIC_FACE_CACHE = ();
		3096
		3097	load_resource_file "$MAPDIR/regions"
		3098	or die "unable to load regions file\n";
		3099
		3100	for (cf::region::list) {
		3101	$_->{match} = qr/$_->{match}/
		3102	if exists $_->{match};
		3103	}
		3104	}
		3105
		3106	sub reload_facedata {
		3107	load_facedata "$DATADIR/facedata"
		3108	or die "unable to load facedata\n";
		3109	}
		3110
		3111	sub reload_archetypes {
		3112	load_resource_file "$DATADIR/archetypes"
		3113	or die "unable to load archetypes\n";
		3114	#d# NEED to laod twice to resolve forward references
		3115	# this really needs to be done in an extra post-pass
		3116	# (which needs to be synchronous, so solve it differently)
		3117	load_resource_file "$DATADIR/archetypes"
		3118	or die "unable to load archetypes\n";
		3119	}
		3120
		3121	sub reload_treasures {
		3122	load_resource_file "$DATADIR/treasures"
		3123	or die "unable to load treasurelists\n";
		3124	}
		3125
		3126	sub reload_resources {
		3127	warn "reloading resource files...\n";
		3128
		3129	reload_regions;
		3130	reload_facedata;
		3131	#reload_archetypes;#d#
		3132	reload_archetypes;
		3133	reload_treasures;
		3134
		3135	warn "finished reloading resource files\n";
		3136	}
		3137
		3138	sub init {
		3139	reload_resources;
		3140	}
		3141
		3142	sub reload_config {
1839	open my $fh, "<:utf8", cf::confdir . "/config"	3143	open my $fh, "<:utf8", "$CONFDIR/config"
1840	or return;	3144	or return;
1841		3145
1842	local $/;	3146	local $/;
1843	*CFG = YAML::Syck::Load <$fh>;	3147	*CFG = YAML::Syck::Load <$fh>;
		3148
		3149	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3150
		3151	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3152	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3153
		3154	if (exists $CFG{mlockall}) {
		3155	eval {
		3156	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3157	and die "WARNING: m(un)lockall failed: $!\n";
		3158	};
		3159	warn $@ if $@;
		3160	}
1844	}	3161	}
1845		3162
1846	sub main {	3163	sub main {
1847	# we must not ever block the main coroutine	3164	# we must not ever block the main coroutine
1848	local $Coro::idle = sub {	3165	local $Coro::idle = sub {
1849	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3166	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1850	(Coro::unblock_sub {	3167	(async {
1851	Event::one_event;	3168	Event::one_event;
1852	})->();	3169	})->prio (Coro::PRIO_MAX);
1853	};	3170	};
1854		3171
1855	cfg_load;	3172	reload_config;
1856	db_load;	3173	db_init;
1857	load_extensions;	3174	load_extensions;
		3175
		3176	$TICK_WATCHER->start;
1858	Event::loop;	3177	Event::loop;
1859	}	3178	}
1860		3179
1861	#############################################################################	3180	#############################################################################
1862	# initialisation	3181	# initialisation and cleanup
1863		3182
		3183	# install some emergency cleanup handlers
		3184	BEGIN {
		3185	for my $signal (qw(INT HUP TERM)) {
		3186	Event->signal (
		3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
		3189	signal => $signal,
		3190	prio => 0,
		3191	cb => sub {
		3192	cf::cleanup "SIG$signal";
		3193	},
		3194	);
		3195	}
		3196	}
		3197
		3198	sub write_runtime {
		3199	my $runtime = "$LOCALDIR/runtime";
		3200
		3201	# first touch the runtime file to show we are still running:
		3202	# the fsync below can take a very very long time.
		3203
		3204	IO::AIO::aio_utime $runtime, undef, undef;
		3205
		3206	my $guard = cf::lock_acquire "write_runtime";
		3207
		3208	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3209	or return;
		3210
		3211	my $value = $cf::RUNTIME + 90 + 10;
		3212	# 10 is the runtime save interval, for a monotonic clock
		3213	# 60 allows for the watchdog to kill the server.
		3214
		3215	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3216	and return;
		3217
		3218	# always fsync - this file is important
		3219	aio_fsync $fh
		3220	and return;
		3221
		3222	# touch it again to show we are up-to-date
		3223	aio_utime $fh, undef, undef;
		3224
		3225	close $fh
		3226	or return;
		3227
		3228	aio_rename "$runtime~", $runtime
		3229	and return;
		3230
		3231	warn "runtime file written.\n";
		3232
		3233	1
		3234	}
		3235
		3236	sub emergency_save() {
		3237	my $freeze_guard = cf::freeze_mainloop;
		3238
		3239	warn "enter emergency perl save\n";
		3240
		3241	cf::sync_job {
		3242	# use a peculiar iteration method to avoid tripping on perl
		3243	# refcount bugs in for. also avoids problems with players
		3244	# and maps saved/destroyed asynchronously.
		3245	warn "begin emergency player save\n";
		3246	for my $login (keys %cf::PLAYER) {
		3247	my $pl = $cf::PLAYER{$login} or next;
		3248	$pl->valid or next;
		3249	$pl->save;
		3250	}
		3251	warn "end emergency player save\n";
		3252
		3253	warn "begin emergency map save\n";
		3254	for my $path (keys %cf::MAP) {
		3255	my $map = $cf::MAP{$path} or next;
		3256	$map->valid or next;
		3257	$map->save;
		3258	}
		3259	warn "end emergency map save\n";
		3260
		3261	warn "begin emergency database checkpoint\n";
		3262	BDB::db_env_txn_checkpoint $DB_ENV;
		3263	warn "end emergency database checkpoint\n";
		3264	};
		3265
		3266	warn "leave emergency perl save\n";
		3267	}
		3268
		3269	sub post_cleanup {
		3270	my ($make_core) = @_;
		3271
		3272	warn Carp::longmess "post_cleanup backtrace"
		3273	if $make_core;
		3274	}
		3275
1864	sub reload() {	3276	sub do_reload_perl() {
1865	# can/must only be called in main	3277	# can/must only be called in main
1866	if ($Coro::current != $Coro::main) {	3278	if ($Coro::current != $Coro::main) {
1867	warn "can only reload from main coroutine\n";	3279	warn "can only reload from main coroutine";
1868	return;	3280	return;
1869	}	3281	}
1870		3282
1871	warn "reloading...";	3283	warn "reloading...";
1872		3284
1873	local $FREEZE = 1;	3285	warn "entering sync_job";
		3286
		3287	cf::sync_job {
		3288	cf::write_runtime; # external watchdog should not bark
1874	cf::emergency_save;	3289	cf::emergency_save;
		3290	cf::write_runtime; # external watchdog should not bark
1875		3291
1876	eval {	3292	warn "syncing database to disk";
		3293	BDB::db_env_txn_checkpoint $DB_ENV;
		3294
1877	# if anything goes wrong in here, we should simply crash as we already saved	3295	# if anything goes wrong in here, we should simply crash as we already saved
1878		3296
1879	# cancel all watchers	3297	warn "cancelling all WF_AUTOCANCEL watchers";
1880	for (Event::all_watchers) {	3298	for (Event::all_watchers) {
1881	$_->cancel if $_->data & WF_AUTOCANCEL;	3299	$_->cancel if $_->data & WF_AUTOCANCEL;
1882	}	3300	}
1883		3301
		3302	warn "flushing outstanding aio requests";
		3303	for (;;) {
		3304	BDB::flush;
		3305	IO::AIO::flush;
		3306	Coro::cede;
		3307	last unless IO::AIO::nreqs || BDB::nreqs;
		3308	warn "iterate...";
		3309	}
		3310
		3311	++$RELOAD;
		3312
1884	# cancel all extension coros	3313	warn "cancelling all extension coros";
1885	$_->cancel for values %EXT_CORO;	3314	$_->cancel for values %EXT_CORO;
1886	%EXT_CORO = ();	3315	%EXT_CORO = ();
1887		3316
1888	# unload all extensions	3317	warn "removing commands";
1889	for (@exts) {	3318	%COMMAND = ();
		3319
		3320	warn "removing ext/exti commands";
		3321	%EXTCMD = ();
		3322	%EXTICMD = ();
		3323
		3324	warn "unloading/nuking all extensions";
		3325	for my $pkg (@EXTS) {
1890	warn "unloading <$_>";	3326	warn "... unloading $pkg";
1891	unload_extension $_;	3327
		3328	if (my $cb = $pkg->can ("unload")) {
		3329	eval {
		3330	$cb->($pkg);
		3331	1
		3332	} or warn "$pkg unloaded, but with errors: $@";
1892	}	3333	}
1893		3334
		3335	warn "... nuking $pkg";
		3336	Symbol::delete_package $pkg;
		3337	}
		3338
1894	# unload all modules loaded from $LIBDIR	3339	warn "unloading all perl modules loaded from $LIBDIR";
1895	while (my ($k, $v) = each %INC) {	3340	while (my ($k, $v) = each %INC) {
1896	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1897		3342
1898	warn "removing <$k>";	3343	warn "... unloading $k";
1899	delete $INC{$k};	3344	delete $INC{$k};
1900		3345
1901	$k =~ s/\.pm$//;	3346	$k =~ s/\.pm$//;
1902	$k =~ s/\//::/g;	3347	$k =~ s/\//::/g;
1903		3348
…		…
1906	}	3351	}
1907		3352
1908	Symbol::delete_package $k;	3353	Symbol::delete_package $k;
1909	}	3354	}
1910		3355
1911	# sync database to disk
1912	cf::db_sync;
1913	IO::AIO::flush;
1914
1915	# get rid of safe::, as good as possible	3356	warn "getting rid of safe::, as good as possible";
1916	Symbol::delete_package "safe::$_"	3357	Symbol::delete_package "safe::$_"
1917	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3358	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1918		3359
1919	# remove register_script_function callbacks
1920	# TODO
1921
1922	# unload cf.pm "a bit"	3360	warn "unloading cf.pm \"a bit\"";
1923	delete $INC{"cf.pm"};	3361	delete $INC{"cf.pm"};
		3362	delete $INC{"cf/pod.pm"};
1924		3363
1925	# don't, removes xs symbols, too,	3364	# don't, removes xs symbols, too,
1926	# and global variables created in xs	3365	# and global variables created in xs
1927	#Symbol::delete_package __PACKAGE__;	3366	#Symbol::delete_package __PACKAGE__;
1928		3367
1929	# reload cf.pm	3368	warn "unload completed, starting to reload now";
		3369
1930	warn "reloading cf.pm";	3370	warn "reloading cf.pm";
1931	require cf;	3371	require cf;
1932	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3372	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1933		3373
1934	# load config and database again	3374	warn "loading config and database again";
1935	cf::cfg_load;	3375	cf::reload_config;
1936	cf::db_load;
1937		3376
1938	# load extensions
1939	warn "load extensions";	3377	warn "loading extensions";
1940	cf::load_extensions;	3378	cf::load_extensions;
1941		3379
1942	# reattach attachments to objects	3380	warn "reattaching attachments to objects/players";
1943	warn "reattach";	3381	_global_reattach; # objects, sockets
1944	_global_reattach;	3382	warn "reattaching attachments to maps";
1945	};	3383	reattach $_ for values %MAP;
		3384	warn "reattaching attachments to players";
		3385	reattach $_ for values %PLAYER;
1946		3386
1947	if ($@) {	3387	warn "leaving sync_job";
		3388
		3389	1
		3390	} or do {
1948	warn $@;	3391	warn $@;
1949	warn "error while reloading, exiting.";	3392	warn "error while reloading, exiting.";
1950	exit 1;	3393	exit 1;
1951	}	3394	};
1952		3395
1953	warn "reloaded successfully";	3396	warn "reloaded";
1954	};	3397	};
1955		3398
1956	#############################################################################	3399	our $RELOAD_WATCHER; # used only during reload
1957		3400
1958	unless ($LINK_MAP) {	3401	sub reload_perl() {
1959	$LINK_MAP = cf::map::new;	3402	# doing reload synchronously and two reloads happen back-to-back,
		3403	# coro crashes during coro_state_free->destroy here.
1960		3404
1961	$LINK_MAP->width (41);	3405	$RELOAD_WATCHER ||= Event->timer (
1962	$LINK_MAP->height (41);	3406	reentrant => 0,
1963	$LINK_MAP->alloc;
1964	$LINK_MAP->path ("{link}");
1965	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1966	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1967
1968	# dirty hack because... archetypes are not yet loaded
1969	Event->timer (
1970	after => 2,	3407	after => 0,
		3408	data => WF_AUTOCANCEL,
1971	cb => sub {	3409	cb => sub {
1972	$_[0]->w->cancel;	3410	do_reload_perl;
1973		3411	undef $RELOAD_WATCHER;
1974	# provide some exits "home"
1975	my $exit = cf::object::new "exit";
1976
1977	$exit->slaying ($EMERGENCY_POSITION->[0]);
1978	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1979	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1980
1981	$LINK_MAP->insert ($exit->clone, 19, 19);
1982	$LINK_MAP->insert ($exit->clone, 19, 20);
1983	$LINK_MAP->insert ($exit->clone, 19, 21);
1984	$LINK_MAP->insert ($exit->clone, 20, 19);
1985	$LINK_MAP->insert ($exit->clone, 20, 21);
1986	$LINK_MAP->insert ($exit->clone, 21, 19);
1987	$LINK_MAP->insert ($exit->clone, 21, 20);
1988	$LINK_MAP->insert ($exit->clone, 21, 21);
1989
1990	$exit->destroy;
1991	});	3412	},
1992		3413	);
1993	$LINK_MAP->{deny_save} = 1;
1994	$LINK_MAP->{deny_reset} = 1;
1995
1996	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1997	}	3414	}
1998
1999	register "<global>", __PACKAGE__;
2000		3415
2001	register_command "reload" => sub {	3416	register_command "reload" => sub {
2002	my ($who, $arg) = @_;	3417	my ($who, $arg) = @_;
2003		3418
2004	if ($who->flag (FLAG_WIZ)) {	3419	if ($who->flag (FLAG_WIZ)) {
2005	$who->message ("start of reload.");
2006	reload;
2007	$who->message ("end of reload.");	3420	$who->message ("reloading server.");
		3421	async { reload_perl };
2008	}	3422	}
2009	};	3423	};
2010		3424
2011	unshift @INC, $LIBDIR;	3425	unshift @INC, $LIBDIR;
2012		3426
		3427	my $bug_warning = 0;
		3428
		3429	our @WAIT_FOR_TICK;
		3430	our @WAIT_FOR_TICK_BEGIN;
		3431
		3432	sub wait_for_tick {
		3433	return unless $TICK_WATCHER->is_active;
		3434	return if $Coro::current == $Coro::main;
		3435
		3436	my $signal = new Coro::Signal;
		3437	push @WAIT_FOR_TICK, $signal;
		3438	$signal->wait;
		3439	}
		3440
		3441	sub wait_for_tick_begin {
		3442	return unless $TICK_WATCHER->is_active;
		3443	return if $Coro::current == $Coro::main;
		3444
		3445	my $signal = new Coro::Signal;
		3446	push @WAIT_FOR_TICK_BEGIN, $signal;
		3447	$signal->wait;
		3448	}
		3449
		3450	my $min = 1e6;#d#
		3451	my $avg = 10;
2013	$TICK_WATCHER = Event->timer (	3452	$TICK_WATCHER = Event->timer (
2014	reentrant => 0,	3453	reentrant => 0,
		3454	parked => 1,
2015	prio => 0,	3455	prio => 0,
2016	at => $NEXT_TICK || $TICK,	3456	at => $NEXT_TICK || $TICK,
2017	data => WF_AUTOCANCEL,	3457	data => WF_AUTOCANCEL,
2018	cb => sub {	3458	cb => sub {
2019	unless ($FREEZE) {	3459	if ($Coro::current != $Coro::main) {
		3460	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3461	unless ++$bug_warning > 10;
		3462	return;
		3463	}
		3464
		3465	$NOW = $tick_start = Event::time;
		3466
2020	cf::server_tick; # one server iteration	3467	cf::server_tick; # one server iteration
2021	$RUNTIME += $TICK;	3468
		3469	0 && sync_job {#d#
		3470	for(1..10) {
		3471	my $t = Event::time;
		3472	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3473	or die;
		3474
		3475	$map->width (50);
		3476	$map->height (50);
		3477	$map->alloc;
		3478	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3479	my $t = Event::time - $t;
		3480
		3481	#next unless $t < 0.0013;#d#
		3482	if ($t < $min) {
		3483	$min = $t;
		3484	}
		3485	$avg = $avg * 0.99 + $t * 0.01;
		3486	}
		3487	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3488	exit 0;
		3489	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2022	}	3490	};
2023		3491
		3492	$RUNTIME += $TICK;
2024	$NEXT_TICK += $TICK;	3493	$NEXT_TICK += $TICK;
2025		3494
		3495	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3496	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3497	Coro::async_pool {
		3498	write_runtime
		3499	or warn "ERROR: unable to write runtime file: $!";
		3500	};
		3501	}
		3502
		3503	# my $AFTER = Event::time;
		3504	# warn $AFTER - $NOW;#d#
		3505
		3506	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3507	$sig->send;
		3508	}
		3509	while (my $sig = shift @WAIT_FOR_TICK) {
		3510	$sig->send;
		3511	}
		3512
		3513	$NOW = Event::time;
		3514
2026	# if we are delayed by four ticks or more, skip them all	3515	# if we are delayed by four ticks or more, skip them all
2027	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3516	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2028		3517
2029	$TICK_WATCHER->at ($NEXT_TICK);	3518	$TICK_WATCHER->at ($NEXT_TICK);
2030	$TICK_WATCHER->start;	3519	$TICK_WATCHER->start;
		3520
		3521	$LOAD = ($NOW - $tick_start) / $TICK;
		3522	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3523
		3524	_post_tick;
		3525
		3526
2031	},	3527	},
2032	);	3528	);
2033		3529
		3530	{
		3531	BDB::min_parallel 8;
2034	IO::AIO::max_poll_time $TICK * 0.2;	3532	BDB::max_poll_time $TICK * 0.1;
2035		3533	$BDB_POLL_WATCHER = Event->io (
2036	Event->io (	3534	reentrant => 0,
2037	fd => IO::AIO::poll_fileno,	3535	fd => BDB::poll_fileno,
2038	poll => 'r',	3536	poll => 'r',
2039	prio => 5,	3537	prio => 0,
2040	data => WF_AUTOCANCEL,
2041	cb => \&IO::AIO::poll_cb,
2042	);
2043
2044	Event->timer (
2045	data => WF_AUTOCANCEL,	3538	data => WF_AUTOCANCEL,
		3539	cb => \&BDB::poll_cb,
		3540	);
		3541
		3542	BDB::set_sync_prepare {
		3543	my $status;
		3544	my $current = $Coro::current;
		3545	(
		3546	sub {
		3547	$status = $!;
		3548	$current->ready; undef $current;
		3549	},
		3550	sub {
		3551	Coro::schedule while defined $current;
		3552	$! = $status;
		3553	},
		3554	)
		3555	};
		3556
		3557	unless ($DB_ENV) {
		3558	$DB_ENV = BDB::db_env_create;
		3559
		3560	cf::sync_job {
		3561	eval {
		3562	BDB::db_env_open
		3563	$DB_ENV,
		3564	$BDBDIR,
		3565	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3566	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3567	0666;
		3568
		3569	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3570
		3571	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3572	| BDB::LOG_AUTOREMOVE, 1);
		3573	$DB_ENV->set_lk_detect;
		3574	};
		3575
		3576	cf::cleanup "db_env_open(db): $@" if $@;
		3577	};
		3578	}
		3579
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
2046	after => 0,	3581	after => 11,
2047	interval => 10,	3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
2048	cb => sub {	3586	cb => sub {
2049	(Coro::unblock_sub {	3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2050	write_runtime	3588	},
2051	or warn "ERROR: unable to write runtime file: $!";	3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
		3600	}
		3601
		3602	{
		3603	IO::AIO::min_parallel 8;
		3604
		3605	undef $Coro::AIO::WATCHER;
		3606	IO::AIO::max_poll_time $TICK * 0.1;
		3607	$AIO_POLL_WATCHER = Event->io (
		3608	reentrant => 0,
		3609	data => WF_AUTOCANCEL,
		3610	fd => IO::AIO::poll_fileno,
		3611	poll => 'r',
		3612	prio => 6,
		3613	cb => \&IO::AIO::poll_cb,
		3614	);
		3615	}
		3616
		3617	my $_log_backtrace;
		3618
		3619	sub _log_backtrace {
		3620	my ($msg, @addr) = @_;
		3621
		3622	$msg =~ s/\n//;
		3623
		3624	# limit the # of concurrent backtraces
		3625	if ($_log_backtrace < 2) {
		3626	++$_log_backtrace;
		3627	async {
		3628	my @bt = fork_call {
		3629	@addr = map { sprintf "%x", $_ } @addr;
		3630	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3631	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3632	or die "addr2line: $!";
		3633
		3634	my @funcs;
		3635	my @res = <$fh>;
		3636	chomp for @res;
		3637	while (@res) {
		3638	my ($func, $line) = splice @res, 0, 2, ();
		3639	push @funcs, "[$func] $line";
		3640	}
		3641
		3642	@funcs
		3643	};
		3644
		3645	LOG llevInfo, "[ABT] $msg\n";
		3646	LOG llevInfo, "[ABT] $_\n" for @bt;
		3647	--$_log_backtrace;
2052	})->();	3648	};
		3649	} else {
		3650	LOG llevInfo, "[ABT] $msg\n";
		3651	LOG llevInfo, "[ABT] [suppressed]\n";
2053	},	3652	}
2054	);	3653	}
		3654
		3655	# load additional modules
		3656	use cf::pod;
		3657
		3658	END { cf::emergency_save }
2055		3659
2056	1	3660	1
2057		3661

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