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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.120 by root, Tue Jan 2 11:08:36 2007 UTC vs.
Revision 1.358 by root, Fri Sep 7 18:10:52 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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	94	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	95
56	our %EXT_CORO;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
106		161
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
147		217
148	$Event::DIED = sub {	218	$Event::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
163		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		262
186	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
187		264	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		265
208	=item cf::lock_wait $string	266	=item cf::lock_wait $string
209		267
210	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
211		269
212	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
213		271
214	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
217	returned.	275	returned.
218		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
219	Lock names should begin with a unique identifier (for example, find_map	280	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
221		286
222	=cut	287	=cut
223		288
224	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
225		291
226	sub lock_wait($) {	292	sub lock_wait($) {
227	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
228		299
229	# wait for lock, if any	300	# wait for lock, if any
230	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	303	Coro::schedule;
…		…
238		309
239	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
240	lock_wait $key;	311	lock_wait $key;
241		312
242	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
243		315
244	cf::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
247	}	320	}
248	}	321	}
249		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
		329	sub freeze_mainloop {
		330	return unless $TICK_WATCHER->is_active;
		331
		332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
		335	$TICK_WATCHER->stop;
		336	$guard
		337	}
		338
		339	=item cf::get_slot $time[, $priority[, $name]]
		340
		341	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		342	This call blocks and returns only when you have at least C<$time> seconds
		343	of cpu time till the next tick. The slot is only valid till the next cede.
		344
		345	The optional C<$name> can be used to identify the job to run. It might be
		346	used for statistical purposes and should identify the same time-class.
		347
		348	Useful for short background jobs.
		349
		350	=cut
		351
		352	our @SLOT_QUEUE;
		353	our $SLOT_QUEUE;
		354
		355	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		356	$SLOT_QUEUE = Coro::async {
		357	my $signal = new Coro::Signal;
		358
		359	while () {
		360	next_job:
		361	my $avail = cf::till_tick;
		362	if ($avail > 0.01) {
		363	for (0 .. $#SLOT_QUEUE) {
		364	if ($SLOT_QUEUE[$_][0] < $avail) {
		365	my $job = splice @SLOT_QUEUE, $_, 1, ();
		366	$job->[2]->send;
		367	Coro::cede;
		368	goto next_job;
		369	}
		370	}
		371	}
		372
		373	if (@SLOT_QUEUE) {
		374	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		375	push @cf::WAIT_FOR_TICK, $signal;
		376	$signal->wait;
		377	} else {
		378	Coro::schedule;
		379	}
		380	}
		381	};
		382
		383	sub get_slot($;$$) {
		384	my ($time, $pri, $name) = @_;
		385
		386	$time = $TICK * .6 if $time > $TICK * .6;
		387	my $sig = new Coro::Signal;
		388
		389	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		390	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		391	$SLOT_QUEUE->ready;
		392	$sig->wait;
		393	}
		394
		395	=item cf::async { BLOCK }
		396
		397	Currently the same as Coro::async_pool, meaning you cannot use
		398	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		399	thing you are allowed to do is call C<prio> on it.
		400
		401	=cut
		402
		403	BEGIN { *async = \&Coro::async_pool }
		404
250	=item cf::sync_job { BLOCK }	405	=item cf::sync_job { BLOCK }
251		406
252	The design of crossfire+ requires that the main coro ($Coro::main) is	407	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	408	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	409	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		410	acceptable.
255		411
256	If it must be done, put the blocking parts into C<sync_job>. This will run	412	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	413	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	414	server will be frozen during this time, so the block should either finish
259	fast or be very important.	415	fast or be very important.
…		…
262		418
263	sub sync_job(&) {	419	sub sync_job(&) {
264	my ($job) = @_;	420	my ($job) = @_;
265		421
266	if ($Coro::current == $Coro::main) {	422	if ($Coro::current == $Coro::main) {
		423	my $time = Event::time;
		424
267	# this is the main coro, too bad, we have to block	425	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	426	# till the operation succeeds, freezing the server :/
269		427
270	# TODO: use suspend/resume instead	428	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	429	# (but this is cancel-safe)
272	local $FREEZE = 1;	430	my $freeze_guard = freeze_mainloop;
273		431
274	my $busy = 1;	432	my $busy = 1;
275	my @res;	433	my @res;
276		434
277	(Coro::async {	435	(async {
278	@res = eval { $job->() };	436	@res = eval { $job->() };
279	warn $@ if $@;	437	warn $@ if $@;
280	undef $busy;	438	undef $busy;
281	})->prio (Coro::PRIO_MAX);	439	})->prio (Coro::PRIO_MAX);
282		440
283	while ($busy) {	441	while ($busy) {
284	Coro::cede_notself;	442	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	443	}
		444
		445	$time = Event::time - $time;
		446
		447	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		448	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		449
		450	$tick_start += $time; # do not account sync jobs to server load
287		451
288	wantarray ? @res : $res[0]	452	wantarray ? @res : $res[0]
289	} else {	453	} else {
290	# we are in another coroutine, how wonderful, everything just works	454	# we are in another coroutine, how wonderful, everything just works
291		455
292	$job->()	456	$job->()
293	}	457	}
294	}	458	}
295		459
296	=item $coro = cf::coro { BLOCK }	460	=item $coro = cf::async_ext { BLOCK }
297		461
298	Creates and returns a new coro. This coro is automcatially being canceled	462	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	463	extension calling this is being unloaded.
300		464
301	=cut	465	=cut
302		466
303	sub coro(&) {	467	sub async_ext(&) {
304	my $cb = shift;	468	my $cb = shift;
305		469
306	my $coro; $coro = async {	470	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		471
313	$coro->on_destroy (sub {	472	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	473	delete $EXT_CORO{$coro+0};
315	});	474	});
316	$EXT_CORO{$coro+0} = $coro;	475	$EXT_CORO{$coro+0} = $coro;
317		476
318	$coro	477	$coro
319	}	478	}
320		479
321	sub write_runtime {	480	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		481
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	482	Executes the given code block with the given arguments in a seperate
325	or return;	483	process, returning the results. Everything must be serialisable with
		484	Coro::Storable. May, of course, block. Note that the executed sub may
		485	never block itself or use any form of Event handling.
326		486
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	487	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		488
331	aio_fsync $fh	489	sub fork_call(&@) {
332	and return;	490	my ($cb, @args) = @_;
333		491
334	close $fh	492	# we seemingly have to make a local copy of the whole thing,
335	or return;	493	# otherwise perl prematurely frees the stuff :/
		494	# TODO: investigate and fix (likely this will be rather laborious)
336		495
337	aio_rename "$runtime~", $runtime	496	my @res = Coro::Util::fork_eval {
338	and return;	497	reset_signals;
		498	&$cb
		499	}, @args;
339		500
		501	wantarray ? @res : $res[-1]
		502	}
		503
		504	=item $value = cf::db_get $family => $key
		505
		506	Returns a single value from the environment database.
		507
		508	=item cf::db_put $family => $key => $value
		509
		510	Stores the given C<$value> in the family. It can currently store binary
		511	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		512
		513	=cut
		514
		515	our $DB;
		516
		517	sub db_init {
		518	unless ($DB) {
		519	$DB = BDB::db_create $DB_ENV;
		520
		521	cf::sync_job {
		522	eval {
		523	$DB->set_flags (BDB::CHKSUM);
		524
		525	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		526	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		527	cf::cleanup "db_open(db): $!" if $!;
		528	};
		529	cf::cleanup "db_open(db): $@" if $@;
		530	};
340	1	531	}
		532	}
		533
		534	sub db_get($$) {
		535	my $key = "$_[0]/$_[1]";
		536
		537	cf::sync_job {
		538	BDB::db_get $DB, undef, $key, my $data;
		539
		540	$! ? ()
		541	: $data
		542	}
		543	}
		544
		545	sub db_put($$$) {
		546	BDB::dbreq_pri 4;
		547	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		548	}
		549
		550	=item cf::cache $id => [$paths...], $processversion => $process
		551
		552	Generic caching function that returns the value of the resource $id,
		553	caching and regenerating as required.
		554
		555	This function can block.
		556
		557	=cut
		558
		559	sub cache {
		560	my ($id, $src, $processversion, $process) = @_;
		561
		562	my $meta =
		563	join "\x00",
		564	$processversion,
		565	map {
		566	aio_stat $_
		567	and Carp::croak "$_: $!";
		568
		569	($_, (stat _)[7,9])
		570	} @$src;
		571
		572	my $dbmeta = db_get cache => "$id/meta";
		573	if ($dbmeta ne $meta) {
		574	# changed, we may need to process
		575
		576	my @data;
		577	my $md5;
		578
		579	for (0 .. $#$src) {
		580	0 <= aio_load $src->[$_], $data[$_]
		581	or Carp::croak "$src->[$_]: $!";
		582	}
		583
		584	# if processing is expensive, check
		585	# checksum first
		586	if (1) {
		587	$md5 =
		588	join "\x00",
		589	$processversion,
		590	map {
		591	cf::cede_to_tick;
		592	($src->[$_], Digest::MD5::md5_hex $data[$_])
		593	} 0.. $#$src;
		594
		595
		596	my $dbmd5 = db_get cache => "$id/md5";
		597	if ($dbmd5 eq $md5) {
		598	db_put cache => "$id/meta", $meta;
		599
		600	return db_get cache => "$id/data";
		601	}
		602	}
		603
		604	my $t1 = Time::HiRes::time;
		605	my $data = $process->(\@data);
		606	my $t2 = Time::HiRes::time;
		607
		608	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		609
		610	db_put cache => "$id/data", $data;
		611	db_put cache => "$id/md5" , $md5;
		612	db_put cache => "$id/meta", $meta;
		613
		614	return $data;
		615	}
		616
		617	db_get cache => "$id/data"
		618	}
		619
		620	=item cf::datalog type => key => value, ...
		621
		622	Log a datalog packet of the given type with the given key-value pairs.
		623
		624	=cut
		625
		626	sub datalog($@) {
		627	my ($type, %kv) = @_;
		628	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	629	}
342		630
343	=back	631	=back
344		632
345	=cut	633	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		634
467	#############################################################################	635	#############################################################################
468		636
469	=head2 ATTACHABLE OBJECTS	637	=head2 ATTACHABLE OBJECTS
470		638
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	640	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	641	to it. All such attachable objects support the following methods.
474		642
475	In the following description, CLASS can be any of C<global>, C<object>	643	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	644	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	645	Crossfire TRT).
478		646
479	=over 4	647	=over 4
480		648
481	=item $attachable->attach ($attachment, key => $value...)	649	=item $attachable->attach ($attachment, key => $value...)
482		650
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	764	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	765	our @CB_MAP = ();
598		766
599	my %attachment;	767	my %attachment;
600		768
		769	sub cf::attachable::thawer_merge {
		770	# simply override everything except _meta
		771	local $_[0]{_meta};
		772	%{$_[0]} = %{$_[1]};
		773	}
		774
601	sub _attach_cb($$$$) {	775	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	776	my ($registry, $event, $prio, $cb) = @_;
603		777
604	use sort 'stable';	778	use sort 'stable';
605		779
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	813	$registry = $CB_TYPE[$object_type] ||= [];
640		814
641	} elsif ($type eq "subtype") {	815	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	816	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	817	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	818	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		819
646	} elsif ($type eq "package") {	820	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	821	my $pkg = shift @arg;
648		822
649	while (my ($name, $id) = each %cb_id) {	823	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	852	_attach $registry, $klass, @attach;
679	}	853	}
680		854
681	$obj->{$name} = \%arg;	855	$obj->{$name} = \%arg;
682	} else {	856	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	857	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	858	}
685		859
686	$obj->{_attachment}{$name} = undef;	860	$obj->{_attachment}{$name} = undef;
687	}	861	}
688		862
…		…
690	if (ref $_[0]) {	864	if (ref $_[0]) {
691	_object_attach @_;	865	_object_attach @_;
692	} else {	866	} else {
693	_attach shift->_attach_registry, @_;	867	_attach shift->_attach_registry, @_;
694	}	868	}
		869	_recalc_want;
695	};	870	};
696		871
697	# all those should be optimised	872	# all those should be optimised
698	sub cf::attachable::detach {	873	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	874	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	877	delete $obj->{_attachment}{$name};
703	reattach ($obj);	878	reattach ($obj);
704	} else {	879	} else {
705	Carp::croak "cannot, currently, detach class attachments";	880	Carp::croak "cannot, currently, detach class attachments";
706	}	881	}
		882	_recalc_want;
707	};	883	};
708		884
709	sub cf::attachable::attached {	885	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
711		887
…		…
726	";	902	";
727	die if $@;	903	die if $@;
728	}	904	}
729		905
730	our $override;	906	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	907	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		908
733	sub override {	909	sub override {
734	$override = 1;	910	$override = 1;
735	@invoke_results = ();	911	@INVOKE_RESULTS = (@_);
736	}	912	}
737		913
738	sub do_invoke {	914	sub do_invoke {
739	my $event = shift;	915	my $event = shift;
740	my $callbacks = shift;	916	my $callbacks = shift;
741		917
742	@invoke_results = ();	918	@INVOKE_RESULTS = ();
743		919
744	local $override;	920	local $override;
745		921
746	for (@$callbacks) {	922	for (@$callbacks) {
747	eval { &{$_->[1]} };	923	eval { &{$_->[1]} };
…		…
764		940
765	Generate an object-specific event with the given arguments.	941	Generate an object-specific event with the given arguments.
766		942
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	943	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	944	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	945	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		946
771	=back	947	=back
772		948
773	=cut	949	=cut
774		950
775	#############################################################################	951	#############################################################################
776	# object support	952	# object support
		953	#
		954
		955	sub _can_merge {
		956	my ($ob1, $ob2) = @_;
		957
		958	local $Storable::canonical = 1;
		959	my $fob1 = Storable::freeze $ob1;
		960	my $fob2 = Storable::freeze $ob2;
		961
		962	$fob1 eq $fob2
		963	}
777		964
778	sub reattach {	965	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	966	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	967	my ($obj) = @_;
		968
		969	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		970
782	my $registry = $obj->registry;	971	my $registry = $obj->registry;
783		972
784	@$registry = ();	973	@$registry = ();
785		974
…		…
824	);	1013	);
825		1014
826	sub object_freezer_save {	1015	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1016	my ($filename, $rdata, $objs) = @_;
828		1017
		1018	my $guard = cf::lock_acquire "io";
		1019
829	sync_job {	1020	sync_job {
830	if (length $$rdata) {	1021	if (length $$rdata) {
831	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1023	$filename, length $$rdata, scalar @$objs;
833		1024
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1026	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1028	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1029	close $fh;
839		1030
840	if (@$objs) {	1031	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1032	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1033	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1034	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1035	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1036	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1037	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1038	aio_rename "$filename.pst~", "$filename.pst";
848	}	1039	}
849	} else {	1040	} else {
850	aio_unlink "$filename.pst";	1041	aio_unlink "$filename.pst";
…		…
856	}	1047	}
857	} else {	1048	} else {
858	aio_unlink $filename;	1049	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
860	}	1051	}
861	}	1052	};
		1053
		1054	undef $guard;
862	}	1055	}
863		1056
864	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
866		1059
…		…
871		1064
872	sub object_thawer_load {	1065	sub object_thawer_load {
873	my ($filename) = @_;	1066	my ($filename) = @_;
874		1067
875	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
876		1071
877	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
878	or return;	1073	or return;
879		1074
880	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
882	or return;	1077	or return;
		1078
		1079	undef $guard;
883	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1081	}
885		1082
886	warn sprintf "loading %s (%d)\n",	1083	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1084	$filename, length $data, scalar @{$av || []};
		1085
888	return ($data, $av);	1086	($data, $av)
889	}	1087	}
		1088
		1089	=head2 COMMAND CALLBACKS
		1090
		1091	=over 4
		1092
		1093	=cut
890		1094
891	#############################################################################	1095	#############################################################################
892	# command handling &c	1096	# command handling &c
893		1097
894	=item cf::register_command $name => \&callback($ob,$args);	1098	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1111	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1112	}
909		1113
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1114	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1115
912	Register a callbackf ro execution when the client sends an extcmd packet.	1116	Register a callback for execution when the client sends an (synchronous)
		1117	extcmd packet. Ext commands will be processed in the order they are
		1118	received by the server, like other user commands. The first argument is
		1119	the logged-in player. Ext commands can only be processed after a player
		1120	has logged in successfully.
913		1121
914	If the callback returns something, it is sent back as if reply was being	1122	If the callback returns something, it is sent back as if reply was being
915	called.	1123	called.
916		1124
		1125	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1126
		1127	Register a callback for execution when the client sends an (asynchronous)
		1128	exticmd packet. Exti commands are processed by the server as soon as they
		1129	are received, i.e. out of order w.r.t. other commands. The first argument
		1130	is a client socket. Exti commands can be received anytime, even before
		1131	log-in.
		1132
		1133	If the callback returns something, it is sent back as if reply was being
		1134	called.
		1135
917	=cut	1136	=cut
918		1137
919	sub register_extcmd {	1138	sub register_extcmd {
920	my ($name, $cb) = @_;	1139	my ($name, $cb) = @_;
921		1140
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1141	$EXTCMD{$name} = $cb;
		1142	}
		1143
		1144	sub register_exticmd {
		1145	my ($name, $cb) = @_;
		1146
		1147	$EXTICMD{$name} = $cb;
926	}	1148	}
927		1149
928	cf::player->attach (	1150	cf::player->attach (
929	on_command => sub {	1151	on_command => sub {
930	my ($pl, $name, $params) = @_;	1152	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1161	cf::override;
940	},	1162	},
941	on_extcmd => sub {	1163	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1164	my ($pl, $buf) = @_;
943		1165
944	my $msg = eval { from_json $buf };	1166	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1167
946	if (ref $msg) {	1168	if (ref $msg) {
		1169	my ($type, $reply, @payload) =
		1170	"ARRAY" eq ref $msg
		1171	? @$msg
		1172	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1173
		1174	my @reply;
		1175
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1176	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1177	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1178	}
		1179
		1180	$pl->ext_reply ($reply, @reply)
		1181	if $reply;
		1182
952	} else {	1183	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1184	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1185	}
955		1186
956	cf::override;	1187	cf::override;
957	},	1188	},
958	);	1189	);
959		1190
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1191	sub load_extensions {
		1192	cf::sync_job {
		1193	my %todo;
		1194
		1195	for my $path (<$LIBDIR/*.ext>) {
		1196	next unless -r $path;
		1197
		1198	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1199	my $base = $1;
		1200	my $pkg = $1;
		1201	$pkg =~ s/[^[:word:]]/_/g;
		1202	$pkg = "ext::$pkg";
		1203
		1204	open my $fh, "<:utf8", $path
		1205	or die "$path: $!";
		1206
		1207	my $source = do { local $/; <$fh> };
		1208
		1209	my %ext = (
		1210	path => $path,
		1211	base => $base,
		1212	pkg => $pkg,
		1213	);
		1214
		1215	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1216	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1217
		1218	$ext{source} =
		1219	"package $pkg; use strict; use utf8;\n"
		1220	. "#line 1 \"$path\"\n{\n"
		1221	. $source
		1222	. "\n};\n1";
		1223
		1224	$todo{$base} = \%ext;
		1225	}
		1226
		1227	my %done;
		1228	while (%todo) {
		1229	my $progress;
		1230
		1231	while (my ($k, $v) = each %todo) {
		1232	for (split /,\s*/, $v->{meta}{depends}) {
		1233	goto skip
		1234	unless exists $done{$_};
		1235	}
		1236
		1237	warn "... loading '$k' into '$v->{pkg}'\n";
		1238
		1239	unless (eval $v->{source}) {
		1240	my $msg = $@ ? "$v->{path}: $@\n"
		1241	: "$v->{base}: extension inactive.\n";
		1242
		1243	if (exists $v->{meta}{mandatory}) {
		1244	warn $msg;
		1245	warn "mandatory extension failed to load, exiting.\n";
		1246	exit 1;
		1247	}
		1248
		1249	warn $msg;
		1250	}
		1251
		1252	$done{$k} = delete $todo{$k};
		1253	push @EXTS, $v->{pkg};
		1254	$progress = 1;
		1255	}
		1256
		1257	skip:
		1258	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1259	unless $progress;
		1260	}
		1261	};
		1262	}
		1263
		1264	#############################################################################
		1265
		1266	=back
		1267
		1268	=head2 CORE EXTENSIONS
		1269
		1270	Functions and methods that extend core crossfire objects.
		1271
		1272	=cut
		1273
		1274	package cf::player;
		1275
		1276	use Coro::AIO;
		1277
		1278	=head3 cf::player
		1279
		1280	=over 4
		1281
		1282	=item cf::player::find $login
		1283
		1284	Returns the given player object, loading it if necessary (might block).
		1285
		1286	=cut
		1287
		1288	sub playerdir($) {
		1289	"$PLAYERDIR/"
		1290	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1291	}
		1292
		1293	sub path($) {
		1294	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1295
		1296	(playerdir $login) . "/playerdata"
		1297	}
		1298
		1299	sub find_active($) {
		1300	$cf::PLAYER{$_[0]}
		1301	and $cf::PLAYER{$_[0]}->active
		1302	and $cf::PLAYER{$_[0]}
		1303	}
		1304
		1305	sub exists($) {
		1306	my ($login) = @_;
		1307
		1308	$cf::PLAYER{$login}
		1309	or cf::sync_job { !aio_stat path $login }
		1310	}
		1311
		1312	sub find($) {
		1313	return $cf::PLAYER{$_[0]} || do {
		1314	my $login = $_[0];
		1315
		1316	my $guard = cf::lock_acquire "user_find:$login";
		1317
		1318	$cf::PLAYER{$_[0]} || do {
		1319	# rename old playerfiles to new ones
		1320	#TODO: remove when no longer required
		1321	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1322	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1323	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1324	aio_unlink +(playerdir $login) . "/$login.pl";
		1325
		1326	my $f = new_from_file cf::object::thawer path $login
		1327	or return;
		1328
		1329	$f->next;
		1330	my $pl = cf::player::load_pl $f
		1331	or return;
		1332	local $cf::PLAYER_LOADING{$login} = $pl;
		1333	$f->resolve_delayed_derefs;
		1334	$cf::PLAYER{$login} = $pl
		1335	}
		1336	}
		1337	}
		1338
		1339	sub save($) {
		1340	my ($pl) = @_;
		1341
		1342	return if $pl->{deny_save};
		1343
		1344	my $path = path $pl;
		1345	my $guard = cf::lock_acquire "user_save:$path";
		1346
		1347	return if $pl->{deny_save};
		1348
		1349	aio_mkdir playerdir $pl, 0770;
		1350	$pl->{last_save} = $cf::RUNTIME;
		1351
		1352	$pl->save_pl ($path);
		1353	cf::cede_to_tick;
		1354	}
		1355
		1356	sub new($) {
		1357	my ($login) = @_;
		1358
		1359	my $self = create;
		1360
		1361	$self->ob->name ($login);
		1362	$self->{deny_save} = 1;
		1363
		1364	$cf::PLAYER{$login} = $self;
		1365
		1366	$self
		1367	}
		1368
		1369	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1370
		1371	=cut
		1372
		1373	sub send_msg {
		1374	my $ns = shift->ns
		1375	or return;
		1376	$ns->send_msg (@_);
		1377	}
		1378
		1379	=item $pl->quit_character
		1380
		1381	Nukes the player without looking back. If logged in, the connection will
		1382	be destroyed. May block for a long time.
		1383
		1384	=cut
		1385
		1386	sub quit_character {
		1387	my ($pl) = @_;
		1388
		1389	my $name = $pl->ob->name;
		1390
		1391	$pl->{deny_save} = 1;
		1392	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1393
		1394	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1395	$pl->deactivate;
		1396	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1397	$pl->ns->destroy if $pl->ns;
		1398
		1399	my $path = playerdir $pl;
		1400	my $temp = "$path~$cf::RUNTIME~deleting~";
		1401	aio_rename $path, $temp;
		1402	delete $cf::PLAYER{$pl->ob->name};
		1403	$pl->destroy;
		1404
		1405	my $prefix = qr<^~\Q$name\E/>;
		1406
		1407	# nuke player maps
		1408	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1409
		1410	IO::AIO::aio_rmtree $temp;
		1411	}
		1412
		1413	=item $pl->kick
		1414
		1415	Kicks a player out of the game. This destroys the connection.
		1416
		1417	=cut
		1418
		1419	sub kick {
		1420	my ($pl, $kicker) = @_;
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1423	$pl->killer ("kicked");
		1424	$pl->ns->destroy;
		1425	}
		1426
		1427	=item cf::player::list_logins
		1428
		1429	Returns am arrayref of all valid playernames in the system, can take a
		1430	while and may block, so not sync_job-capable, ever.
		1431
		1432	=cut
		1433
		1434	sub list_logins {
		1435	my $dirs = aio_readdir $PLAYERDIR
		1436	or return [];
		1437
		1438	my @logins;
		1439
		1440	for my $login (@$dirs) {
		1441	my $path = path $login;
		1442
		1443	# a .pst is a dead give-away for a valid player
		1444	unless (-e "$path.pst") {
		1445	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1446	aio_read $fh, 0, 512, my $buf, 0 or next;
		1447	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1448	}
		1449
		1450	utf8::decode $login;
		1451	push @logins, $login;
		1452	}
		1453
		1454	\@logins
		1455	}
		1456
		1457	=item $player->maps
		1458
		1459	Returns an arrayref of map paths that are private for this
		1460	player. May block.
		1461
		1462	=cut
		1463
		1464	sub maps($) {
		1465	my ($pl) = @_;
		1466
		1467	$pl = ref $pl ? $pl->ob->name : $pl;
		1468
		1469	my $files = aio_readdir playerdir $pl
		1470	or return;
		1471
		1472	my @paths;
		1473
		1474	for (@$files) {
		1475	utf8::decode $_;
		1476	next if /\.(?:pl|pst)$/;
		1477	next unless /^$PATH_SEP/o;
		1478
		1479	push @paths, cf::map::normalise "~$pl/$_";
		1480	}
		1481
		1482	\@paths
		1483	}
		1484
		1485	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1486
		1487	Expand crossfire pod fragments into protocol xml.
		1488
		1489	=cut
		1490
		1491	sub expand_cfpod {
		1492	((my $self), (local $_)) = @_;
		1493
		1494	# escape & and <
		1495	s/&/&amp;/g;
		1496	s/(?<![BIUGHT])</&lt;/g;
		1497
		1498	# this is buggy, it needs to properly take care of nested <'s
		1499
		1500	1 while
		1501	# replace B<>, I<>, U<> etc.
		1502	s/B<([^\>]*)>/<b>$1<\/b>/
		1503	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1504	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1505	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1506	# replace G<male|female> tags
		1507	|| s{G<([^>|]*)\|([^>]*)>}{
		1508	$self->gender ? $2 : $1
		1509	}ge
		1510	# replace H<hint text>
		1511	|| s{H<([^\>]*)>}
		1512	{
		1513	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1514	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1515	"")
		1516	[$self->{hintmode}]
		1517	}ge;
		1518
		1519	# create single paragraphs (very hackish)
		1520	s/(?<=\S)\n(?=\w)/ /g;
		1521
		1522	# compress some whitespace
		1523	s/\s+\n/\n/g; # ws line-ends
		1524	s/\n\n+/\n/g; # double lines
		1525	s/^\n+//; # beginning lines
		1526	s/\n+$//; # ending lines
		1527
		1528	$_
		1529	}
		1530
		1531	sub hintmode {
		1532	$_[0]{hintmode} = $_[1] if @_ > 1;
		1533	$_[0]{hintmode}
		1534	}
		1535
		1536	=item $player->ext_reply ($msgid, @msg)
		1537
		1538	Sends an ext reply to the player.
		1539
		1540	=cut
		1541
		1542	sub ext_reply($$@) {
		1543	my ($self, $id, @msg) = @_;
		1544
		1545	$self->ns->ext_reply ($id, @msg)
		1546	}
		1547
		1548	=item $player->ext_msg ($type, @msg)
		1549
		1550	Sends an ext event to the client.
		1551
		1552	=cut
		1553
		1554	sub ext_msg($$@) {
		1555	my ($self, $type, @msg) = @_;
		1556
		1557	$self->ns->ext_msg ($type, @msg);
		1558	}
		1559
		1560	=head3 cf::region
		1561
		1562	=over 4
		1563
		1564	=cut
		1565
		1566	package cf::region;
		1567
		1568	=item cf::region::find_by_path $path
		1569
		1570	Tries to decuce the likely region for a map knowing only its path.
		1571
		1572	=cut
		1573
		1574	sub find_by_path($) {
967	my ($path) = @_;	1575	my ($path) = @_;
968		1576
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1577	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1578
975	warn "loading '$path' into '$pkg'\n";	1579	for my $region (list) {
976		1580	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1581	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1582	if $region->specificity > $specificity;
979		1583	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1584	}
1009		1585
1010	# remove commands	1586	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1587	}
1116		1588
1117	=back	1589	=back
1118
1119		1590
1120	=head3 cf::map	1591	=head3 cf::map
1121		1592
1122	=over 4	1593	=over 4
1123		1594
…		…
1126	package cf::map;	1597	package cf::map;
1127		1598
1128	use Fcntl;	1599	use Fcntl;
1129	use Coro::AIO;	1600	use Coro::AIO;
1130		1601
		1602	use overload
		1603	'""' => \&as_string,
		1604	fallback => 1;
		1605
1131	our $MAX_RESET = 7200;	1606	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1607	our $DEFAULT_RESET = 3000;
1133		1608
1134	sub generate_random_map {	1609	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1610	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1611	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1612	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1613	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1614	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1615	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1616	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1617	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1618	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1619	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1620	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1621	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1622	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1623	(cf::region::find $rmp->{region}), $rmp->{custom}
		1624	)
		1625	}
		1626
		1627	=item cf::map->register ($regex, $prio)
		1628
		1629	Register a handler for the map path matching the given regex at the
		1630	givne priority (higher is better, built-in handlers have priority 0, the
		1631	default).
		1632
		1633	=cut
		1634
		1635	sub register {
		1636	my (undef, $regex, $prio) = @_;
		1637	my $pkg = caller;
		1638
		1639	no strict;
		1640	push @{"$pkg\::ISA"}, __PACKAGE__;
		1641
		1642	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1643	}
		1644
		1645	# also paths starting with '/'
		1646	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1647
		1648	sub thawer_merge {
		1649	my ($self, $merge) = @_;
		1650
		1651	# we have to keep some variables in memory intact
		1652	local $self->{path};
		1653	local $self->{load_path};
		1654
		1655	$self->SUPER::thawer_merge ($merge);
		1656	}
		1657
		1658	sub normalise {
		1659	my ($path, $base) = @_;
		1660
		1661	$path = "$path"; # make sure its a string
		1662
		1663	$path =~ s/\.map$//;
		1664
		1665	# map plan:
		1666	#
		1667	# /! non-realised random map exit (special hack!)
		1668	# {... are special paths that are not being touched
		1669	# ?xxx/... are special absolute paths
		1670	# ?random/... random maps
		1671	# /... normal maps
		1672	# ~user/... per-player map of a specific user
		1673
		1674	$path =~ s/$PATH_SEP/\//go;
		1675
		1676	# treat it as relative path if it starts with
		1677	# something that looks reasonable
		1678	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1679	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1680
		1681	$base =~ s{[^/]+/?$}{};
		1682	$path = "$base/$path";
		1683	}
		1684
		1685	for ($path) {
		1686	redo if s{//}{/};
		1687	redo if s{/\.?/}{/};
		1688	redo if s{/[^/]+/\.\./}{/};
		1689	}
		1690
		1691	$path
		1692	}
		1693
		1694	sub new_from_path {
		1695	my (undef, $path, $base) = @_;
		1696
		1697	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1698
		1699	$path = normalise $path, $base;
		1700
		1701	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1702	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1703	my $self = bless cf::map::new, $pkg;
		1704	$self->{path} = $path; $self->path ($path);
		1705	$self->init; # pass $1 etc.
		1706	return $self;
		1707	}
		1708	}
		1709
		1710	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1711	()
		1712	}
		1713
		1714	sub init {
		1715	my ($self) = @_;
		1716
		1717	$self
		1718	}
		1719
		1720	sub as_string {
		1721	my ($self) = @_;
		1722
		1723	"$self->{path}"
		1724	}
		1725
		1726	# the displayed name, this is a one way mapping
		1727	sub visible_name {
		1728	&as_string
		1729	}
		1730
		1731	# the original (read-only) location
		1732	sub load_path {
		1733	my ($self) = @_;
		1734
		1735	"$MAPDIR/$self->{path}.map"
		1736	}
		1737
		1738	# the temporary/swap location
		1739	sub save_path {
		1740	my ($self) = @_;
		1741
		1742	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1743	"$TMPDIR/$path.map"
		1744	}
		1745
		1746	# the unique path, undef == no special unique path
		1747	sub uniq_path {
		1748	my ($self) = @_;
		1749
		1750	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1751	"$UNIQUEDIR/$path"
1151	}	1752	}
1152		1753
1153	# and all this just because we cannot iterate over	1754	# and all this just because we cannot iterate over
1154	# all maps in C++...	1755	# all maps in C++...
1155	sub change_all_map_light {	1756	sub change_all_map_light {
1156	my ($change) = @_;	1757	my ($change) = @_;
1157		1758
1158	$_->change_map_light ($change) for values %cf::MAP;	1759	$_->change_map_light ($change)
		1760	for grep $_->outdoor, values %cf::MAP;
1159	}	1761	}
1160		1762
		1763	sub decay_objects {
		1764	my ($self) = @_;
		1765
		1766	return if $self->{deny_reset};
		1767
		1768	$self->do_decay_objects;
		1769	}
		1770
		1771	sub unlink_save {
		1772	my ($self) = @_;
		1773
		1774	utf8::encode (my $save = $self->save_path);
		1775	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1776	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1777	}
		1778
1161	sub try_load_header($) {	1779	sub load_header_from($) {
1162	my ($path) = @_;	1780	my ($self, $path) = @_;
1163		1781
1164	utf8::encode $path;	1782	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1783	my $f = new_from_file cf::object::thawer $path
1166	or return;	1784	or return;
1167		1785
1168	my $map = cf::map::new	1786	$self->_load_header ($f)
1169	or return;	1787	or return;
1170		1788
1171	$map->load_header ($path)	1789	local $MAP_LOADING{$self->{path}} = $self;
		1790	$f->resolve_delayed_derefs;
		1791
		1792	$self->{load_path} = $path;
		1793
		1794	1
		1795	}
		1796
		1797	sub load_header_orig {
		1798	my ($self) = @_;
		1799
		1800	$self->load_header_from ($self->load_path)
		1801	}
		1802
		1803	sub load_header_temp {
		1804	my ($self) = @_;
		1805
		1806	$self->load_header_from ($self->save_path)
		1807	}
		1808
		1809	sub prepare_temp {
		1810	my ($self) = @_;
		1811
		1812	$self->last_access ((delete $self->{last_access})
		1813	|| $cf::RUNTIME); #d#
		1814	# safety
		1815	$self->{instantiate_time} = $cf::RUNTIME
		1816	if $self->{instantiate_time} > $cf::RUNTIME;
		1817	}
		1818
		1819	sub prepare_orig {
		1820	my ($self) = @_;
		1821
		1822	$self->{load_original} = 1;
		1823	$self->{instantiate_time} = $cf::RUNTIME;
		1824	$self->last_access ($cf::RUNTIME);
		1825	$self->instantiate;
		1826	}
		1827
		1828	sub load_header {
		1829	my ($self) = @_;
		1830
		1831	if ($self->load_header_temp) {
		1832	$self->prepare_temp;
		1833	} else {
		1834	$self->load_header_orig
1172	or return;	1835	or return;
		1836	$self->prepare_orig;
		1837	}
1173		1838
1174	$map->{load_path} = $path;	1839	$self->{deny_reset} = 1
		1840	if $self->no_reset;
1175		1841
1176	$map	1842	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	1843	unless $self->default_region;
1178		1844
		1845	1
		1846	}
		1847
		1848	sub find;
1179	sub find_map {	1849	sub find {
1180	my ($path, $origin) = @_;	1850	my ($path, $origin) = @_;
1181		1851
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1852	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1853
		1854	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1855	cf::lock_wait "map_find:$path";
1188		1856
1189	$cf::MAP{$key} || do {	1857	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1858	my $guard1 = cf::lock_acquire "map_find:$path";
		1859	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1860
1192	# do it the slow way	1861	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1862	or return;
1207		1863
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215	#Coro::Timer::sleep 1;#d#
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1864	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1865
1222	if ($map->should_reset) {	1866	$map->load_header
		1867	or return;
		1868
		1869	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1870	# doing this can freeze the server in a sync job, obviously
		1871	#$cf::WAIT_FOR_TICK->wait;
		1872	undef $guard1;
		1873	undef $guard2;
1223	$map->reset;	1874	$map->reset;
1224	$map = find_map $path;	1875	return find $path;
1225	}	1876	}
1226		1877
1227	$cf::MAP{$key} = $map	1878	$cf::MAP{$path} = $map
1228	}	1879	}
1229	}	1880	}
		1881
		1882	sub pre_load { }
		1883	sub post_load { }
1230		1884
1231	sub load {	1885	sub load {
1232	my ($self) = @_;	1886	my ($self) = @_;
1233		1887
		1888	local $self->{deny_reset} = 1; # loading can take a long time
		1889
1234	my $path = $self->{path};	1890	my $path = $self->{path};
		1891
		1892	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1893	my $guard = cf::lock_acquire "map_data:$path";
1236		1894
		1895	return unless $self->valid;
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1896	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1897
1239	$self->in_memory (cf::MAP_LOADING);	1898	$self->in_memory (cf::MAP_LOADING);
1240		1899
1241	$self->alloc;	1900	$self->alloc;
1242	$self->load_objects ($self->{load_path}, 1)	1901
		1902	$self->pre_load;
		1903	cf::cede_to_tick;
		1904
		1905	my $f = new_from_file cf::object::thawer $self->{load_path};
		1906	$f->skip_block;
		1907	$self->_load_objects ($f)
1243	or return;	1908	or return;
1244		1909
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1910	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1911	if delete $self->{load_original};
1247		1912
1248	if (my $uniq = $path->uniq_path) {	1913	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1914	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1915	unless (aio_stat $uniq) {
		1916	if (my $f = new_from_file cf::object::thawer $uniq) {
1251	$self->clear_unique_items;	1917	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1918	$self->_load_objects ($f);
		1919	$f->resolve_delayed_derefs;
		1920	}
1253	}	1921	}
1254	}	1922	}
1255		1923
		1924	$f->resolve_delayed_derefs;
		1925
		1926	cf::cede_to_tick;
1256	# now do the right thing for maps	1927	# now do the right thing for maps
1257	$self->link_multipart_objects;	1928	$self->link_multipart_objects;
1258
1259	if ($self->{path}->is_style_map) {
1260	$self->{deny_save} = 1;
1261	$self->{deny_reset} = 1;
1262	} else {
1263	$self->fix_auto_apply;
1264	$self->decay_objects;
1265	$self->update_buttons;
1266	$self->set_darkness_map;
1267	$self->difficulty ($self->estimate_difficulty)	1929	$self->difficulty ($self->estimate_difficulty)
1268	unless $self->difficulty;	1930	unless $self->difficulty;
		1931	cf::cede_to_tick;
		1932
		1933	unless ($self->{deny_activate}) {
		1934	$self->decay_objects;
		1935	$self->fix_auto_apply;
		1936	$self->update_buttons;
		1937	cf::cede_to_tick;
		1938	$self->set_darkness_map;
		1939	cf::cede_to_tick;
1269	$self->activate;	1940	$self->activate;
1270	}	1941	}
1271		1942
		1943	$self->{last_save} = $cf::RUNTIME;
		1944	$self->last_access ($cf::RUNTIME);
		1945
1272	$self->in_memory (cf::MAP_IN_MEMORY);	1946	$self->in_memory (cf::MAP_IN_MEMORY);
1273	}	1947	}
1274		1948
1275	sub load_map_sync {	1949	$self->post_load;
		1950	}
		1951
		1952	sub customise_for {
		1953	my ($self, $ob) = @_;
		1954
		1955	return find "~" . $ob->name . "/" . $self->{path}
		1956	if $self->per_player;
		1957
		1958	# return find "?party/" . $ob->name . "/" . $self->{path}
		1959	# if $self->per_party;
		1960
		1961	$self
		1962	}
		1963
		1964	# find and load all maps in the 3x3 area around a map
		1965	sub load_neighbours {
		1966	my ($map) = @_;
		1967
		1968	my @neigh; # diagonal neighbours
		1969
		1970	for (0 .. 3) {
		1971	my $neigh = $map->tile_path ($_)
		1972	or next;
		1973	$neigh = find $neigh, $map
		1974	or next;
		1975	$neigh->load;
		1976
		1977	push @neigh,
		1978	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1979	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1980	}
		1981
		1982	for (grep defined $_->[0], @neigh) {
		1983	my ($path, $origin) = @$_;
		1984	my $neigh = find $path, $origin
		1985	or next;
		1986	$neigh->load;
		1987	}
		1988	}
		1989
		1990	sub find_sync {
1276	my ($path, $origin) = @_;	1991	my ($path, $origin) = @_;
1277		1992
1278	#warn "load_map_sync<$path, $origin>\n";#d#	1993	cf::sync_job { find $path, $origin }
		1994	}
1279		1995
1280	cf::sync_job {	1996	sub do_load_sync {
1281	my $map = cf::map::find_map $path, $origin	1997	my ($map) = @_;
1282	or return;	1998
1283	$map->load;	1999	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1284	$map	2000	if $Coro::current == $Coro::main;
		2001
		2002	cf::sync_job { $map->load };
		2003	}
		2004
		2005	our %MAP_PREFETCH;
		2006	our $MAP_PREFETCHER = undef;
		2007
		2008	sub find_async {
		2009	my ($path, $origin, $load) = @_;
		2010
		2011	$path = normalise $path, $origin && $origin->{path};
		2012
		2013	if (my $map = $cf::MAP{$path}) {
		2014	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2015	}
		2016
		2017	$MAP_PREFETCH{$path} |= $load;
		2018
		2019	$MAP_PREFETCHER ||= cf::async {
		2020	while (%MAP_PREFETCH) {
		2021	while (my ($k, $v) = each %MAP_PREFETCH) {
		2022	if (my $map = find $k) {
		2023	$map->load if $v;
		2024	}
		2025
		2026	delete $MAP_PREFETCH{$k};
		2027	}
		2028	}
		2029	undef $MAP_PREFETCHER;
1285	}	2030	};
		2031	$MAP_PREFETCHER->prio (6);
		2032
		2033	()
1286	}	2034	}
1287		2035
1288	sub save {	2036	sub save {
1289	my ($self) = @_;	2037	my ($self) = @_;
1290		2038
		2039	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2040
1291	$self->{last_save} = $cf::RUNTIME;	2041	$self->{last_save} = $cf::RUNTIME;
1292		2042
1293	return unless $self->dirty;	2043	return unless $self->dirty;
1294		2044
1295	my $save = $self->{path}->save_path; utf8::encode $save;	2045	my $save = $self->save_path; utf8::encode $save;
1296	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2046	my $uniq = $self->uniq_path; utf8::encode $uniq;
1297		2047
1298	$self->{load_path} = $save;	2048	$self->{load_path} = $save;
1299		2049
1300	return if $self->{deny_save};	2050	return if $self->{deny_save};
1301		2051
		2052	local $self->{last_access} = $self->last_access;#d#
		2053
		2054	cf::async {
		2055	$_->contr->save for $self->players;
		2056	};
		2057
1302	if ($uniq) {	2058	if ($uniq) {
1303	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2059	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304	$self->save_objects ($uniq, cf::IO_UNIQUES);	2060	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1305	} else {	2061	} else {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2062	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1307	}	2063	}
1308	}	2064	}
1309		2065
1310	sub swap_out {	2066	sub swap_out {
1311	my ($self) = @_;	2067	my ($self) = @_;
		2068
		2069	# save first because save cedes
		2070	$self->save;
		2071
		2072	my $lock = cf::lock_acquire "map_data:$self->{path}";
1312		2073
1313	return if $self->players;	2074	return if $self->players;
1314	return if $self->in_memory != cf::MAP_IN_MEMORY;	2075	return if $self->in_memory != cf::MAP_IN_MEMORY;
1315	return if $self->{deny_save};	2076	return if $self->{deny_save};
1316		2077
1317	$self->save;	2078	$self->deactivate;
1318	$self->clear;	2079	$self->clear;
1319	$self->in_memory (cf::MAP_SWAPPED);	2080	$self->in_memory (cf::MAP_SWAPPED);
1320	}	2081	}
1321		2082
1322	sub reset_at {	2083	sub reset_at {
1323	my ($self) = @_;	2084	my ($self) = @_;
1324		2085
1325	# TODO: safety, remove and allow resettable per-player maps	2086	# TODO: safety, remove and allow resettable per-player maps
1326	return 1e99 if $self->{path}{user_rel};
1327	return 1e99 if $self->{deny_reset};	2087	return 1e99 if $self->{deny_reset};
1328		2088
1329	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2089	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1330	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2090	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1331		2091
…		…
1336	my ($self) = @_;	2096	my ($self) = @_;
1337		2097
1338	$self->reset_at <= $cf::RUNTIME	2098	$self->reset_at <= $cf::RUNTIME
1339	}	2099	}
1340		2100
1341	sub unlink_save {
1342	my ($self) = @_;
1343
1344	utf8::encode (my $save = $self->{path}->save_path);
1345	aioreq_pri 3; IO::AIO::aio_unlink $save;
1346	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1347	}
1348
1349	sub rename {
1350	my ($self, $new_path) = @_;
1351
1352	$self->unlink_save;
1353
1354	delete $cf::MAP{$self->path};
1355	$self->{path} = new cf::path $new_path;
1356	$self->path ($self->{path}->as_string);
1357	$cf::MAP{$self->path} = $self;
1358
1359	$self->save;
1360	}
1361
1362	sub reset {	2101	sub reset {
1363	my ($self) = @_;	2102	my ($self) = @_;
1364		2103
		2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2105
1365	return if $self->players;	2106	return if $self->players;
1366	return if $self->{path}{user_rel};#d#
1367		2107
1368	warn "resetting map ", $self->path;#d#	2108	warn "resetting map ", $self->path;
		2109
		2110	$self->in_memory (cf::MAP_SWAPPED);
		2111
		2112	# need to save uniques path
		2113	unless ($self->{deny_save}) {
		2114	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2115
		2116	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2117	if $uniq;
		2118	}
1369		2119
1370	delete $cf::MAP{$self->path};	2120	delete $cf::MAP{$self->path};
		2121
		2122	$self->deactivate;
		2123	$self->clear;
1371		2124
1372	$_->clear_links_to ($self) for values %cf::MAP;	2125	$_->clear_links_to ($self) for values %cf::MAP;
1373		2126
1374	$self->unlink_save;	2127	$self->unlink_save;
1375	$self->destroy;	2128	$self->destroy;
…		…
1378	my $nuke_counter = "aaaa";	2131	my $nuke_counter = "aaaa";
1379		2132
1380	sub nuke {	2133	sub nuke {
1381	my ($self) = @_;	2134	my ($self) = @_;
1382		2135
		2136	{
		2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2138
		2139	delete $cf::MAP{$self->path};
		2140
		2141	$self->unlink_save;
		2142
		2143	bless $self, "cf::map";
		2144	delete $self->{deny_reset};
1383	$self->{deny_save} = 1;	2145	$self->{deny_save} = 1;
1384	$self->reset_timeout (1);	2146	$self->reset_timeout (1);
1385	$self->rename ("{nuke}/" . ($nuke_counter++));	2147	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2148
		2149	$cf::MAP{$self->path} = $self;
		2150	}
		2151
1386	$self->reset; # polite request, might not happen	2152	$self->reset; # polite request, might not happen
1387	}	2153	}
1388		2154
1389	sub customise_for {	2155	=item $maps = cf::map::tmp_maps
1390	my ($map, $ob) = @_;
1391		2156
1392	if ($map->per_player) {	2157	Returns an arrayref with all map paths of currently instantiated and saved
1393	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2158	maps. May block.
		2159
		2160	=cut
		2161
		2162	sub tmp_maps() {
1394	}	2163	[
1395		2164	map {
1396	$map	2165	utf8::decode $_;
		2166	/\.map$/
		2167	? normalise $_
		2168	: ()
		2169	} @{ aio_readdir $TMPDIR or [] }
		2170	]
1397	}	2171	}
1398		2172
1399	sub emergency_save {	2173	=item $maps = cf::map::random_maps
1400	local $cf::FREEZE = 1;
1401		2174
1402	warn "enter emergency map save\n";	2175	Returns an arrayref with all map paths of currently instantiated and saved
		2176	random maps. May block.
1403		2177
1404	cf::sync_job {	2178	=cut
1405	warn "begin emergency map save\n";
1406	$_->save for values %cf::MAP;
1407	};
1408		2179
1409	warn "end emergency map save\n";	2180	sub random_maps() {
		2181	[
		2182	map {
		2183	utf8::decode $_;
		2184	/\.map$/
		2185	? normalise "?random/$_"
		2186	: ()
		2187	} @{ aio_readdir $RANDOMDIR or [] }
		2188	]
		2189	}
		2190
		2191	=item cf::map::unique_maps
		2192
		2193	Returns an arrayref of paths of all shared maps that have
		2194	instantiated unique items. May block.
		2195
		2196	=cut
		2197
		2198	sub unique_maps() {
		2199	[
		2200	map {
		2201	utf8::decode $_;
		2202	/\.map$/
		2203	? normalise $_
		2204	: ()
		2205	} @{ aio_readdir $UNIQUEDIR or [] }
		2206	]
1410	}	2207	}
1411		2208
1412	package cf;	2209	package cf;
1413		2210
1414	=back	2211	=back
1415		2212
		2213	=head3 cf::object
		2214
		2215	=cut
		2216
		2217	package cf::object;
		2218
		2219	=over 4
		2220
		2221	=item $ob->inv_recursive
		2222
		2223	Returns the inventory of the object _and_ their inventories, recursively.
		2224
		2225	=cut
		2226
		2227	sub inv_recursive_;
		2228	sub inv_recursive_ {
		2229	map { $_, inv_recursive_ $_->inv } @_
		2230	}
		2231
		2232	sub inv_recursive {
		2233	inv_recursive_ inv $_[0]
		2234	}
		2235
		2236	=item $ref = $ob->ref
		2237
		2238	creates and returns a persistent reference to an objetc that can be stored as a string.
		2239
		2240	=item $ob = cf::object::deref ($refstring)
		2241
		2242	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2243	even if the object actually exists. May block.
		2244
		2245	=cut
		2246
		2247	sub deref {
		2248	my ($ref) = @_;
		2249
		2250	# temporary compatibility#TODO#remove
		2251	$ref =~ s{^<}{player/<};
		2252
		2253	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2254	my ($uuid, $name) = ($1, $2);
		2255	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2256	or return;
		2257	$pl->ob->uuid eq $uuid
		2258	or return;
		2259
		2260	$pl->ob
		2261	} else {
		2262	warn "$ref: cannot resolve object reference\n";
		2263	undef
		2264	}
		2265	}
		2266
		2267	package cf;
		2268
		2269	=back
1416		2270
1417	=head3 cf::object::player	2271	=head3 cf::object::player
1418		2272
1419	=over 4	2273	=over 4
1420		2274
…		…
1434		2288
1435	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2289	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1436		2290
1437	if ($self->{record_replies}) {	2291	if ($self->{record_replies}) {
1438	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2292	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2293
1439	} else {	2294	} else {
		2295	my $pl = $self->contr;
		2296
		2297	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2298	my $dialog = $pl->{npc_dialog};
		2299	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2300
		2301	} else {
1440	$msg = $npc->name . " says: $msg" if $npc;	2302	$msg = $npc->name . " says: $msg" if $npc;
1441	$self->message ($msg, $flags);	2303	$self->message ($msg, $flags);
		2304	}
1442	}	2305	}
		2306	}
		2307
		2308	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2309
		2310	=cut
		2311
		2312	sub cf::object::send_msg {
		2313	my $pl = shift->contr
		2314	or return;
		2315	$pl->send_msg (@_);
1443	}	2316	}
1444		2317
1445	=item $player_object->may ("access")	2318	=item $player_object->may ("access")
1446		2319
1447	Returns wether the given player is authorized to access resource "access"	2320	Returns wether the given player is authorized to access resource "access"
…		…
1460		2333
1461	=item $player_object->enter_link	2334	=item $player_object->enter_link
1462		2335
1463	Freezes the player and moves him/her to a special map (C<{link}>).	2336	Freezes the player and moves him/her to a special map (C<{link}>).
1464		2337
1465	The player should be reaosnably safe there for short amounts of time. You	2338	The player should be reasonably safe there for short amounts of time. You
1466	I<MUST> call C<leave_link> as soon as possible, though.	2339	I<MUST> call C<leave_link> as soon as possible, though.
1467		2340
		2341	Will never block.
		2342
1468	=item $player_object->leave_link ($map, $x, $y)	2343	=item $player_object->leave_link ($map, $x, $y)
1469		2344
1470	Moves the player out of the specila link map onto the given map. If the	2345	Moves the player out of the special C<{link}> map onto the specified
1471	map is not valid (or omitted), the player will be moved back to the	2346	map. If the map is not valid (or omitted), the player will be moved back
1472	location he/she was before the call to C<enter_link>, or, if that fails,	2347	to the location he/she was before the call to C<enter_link>, or, if that
1473	to the emergency map position.	2348	fails, to the emergency map position.
1474		2349
1475	Might block.	2350	Might block.
1476		2351
1477	=cut	2352	=cut
		2353
		2354	sub link_map {
		2355	unless ($LINK_MAP) {
		2356	$LINK_MAP = cf::map::find "{link}"
		2357	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2358	$LINK_MAP->load;
		2359	}
		2360
		2361	$LINK_MAP
		2362	}
1478		2363
1479	sub cf::object::player::enter_link {	2364	sub cf::object::player::enter_link {
1480	my ($self) = @_;	2365	my ($self) = @_;
1481		2366
1482	$self->deactivate_recursive;	2367	$self->deactivate_recursive;
1483		2368
1484	return if $self->map == $LINK_MAP;	2369	return if UNIVERSAL::isa $self->map, "ext::map_link";
1485		2370
1486	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2371	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1487	if $self->map;	2372	if $self->map && $self->map->{path} ne "{link}";
1488		2373
1489	$self->enter_map ($LINK_MAP, 20, 20);	2374	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1490	}	2375	}
1491		2376
1492	sub cf::object::player::leave_link {	2377	sub cf::object::player::leave_link {
1493	my ($self, $map, $x, $y) = @_;	2378	my ($self, $map, $x, $y) = @_;
		2379
		2380	return unless $self->contr->active;
1494		2381
1495	my $link_pos = delete $self->{_link_pos};	2382	my $link_pos = delete $self->{_link_pos};
1496		2383
1497	unless ($map) {	2384	unless ($map) {
1498	# restore original map position	2385	# restore original map position
1499	($map, $x, $y) = @{ $link_pos || [] };	2386	($map, $x, $y) = @{ $link_pos || [] };
1500	$map = cf::map::find_map $map;	2387	$map = cf::map::find $map;
1501		2388
1502	unless ($map) {	2389	unless ($map) {
1503	($map, $x, $y) = @$EMERGENCY_POSITION;	2390	($map, $x, $y) = @$EMERGENCY_POSITION;
1504	$map = cf::map::find_map $map	2391	$map = cf::map::find $map
1505	or die "FATAL: cannot load emergency map\n";	2392	or die "FATAL: cannot load emergency map\n";
1506	}	2393	}
1507	}	2394	}
1508		2395
1509	($x, $y) = (-1, -1)	2396	($x, $y) = (-1, -1)
…		…
1512	# use -1 or undef as default coordinates, not 0, 0	2399	# use -1 or undef as default coordinates, not 0, 0
1513	($x, $y) = ($map->enter_x, $map->enter_y)	2400	($x, $y) = ($map->enter_x, $map->enter_y)
1514	if $x <=0 && $y <= 0;	2401	if $x <=0 && $y <= 0;
1515		2402
1516	$map->load;	2403	$map->load;
		2404	$map->load_neighbours;
1517		2405
		2406	return unless $self->contr->active;
1518	$self->activate_recursive;	2407	$self->activate_recursive;
		2408
		2409	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1519	$self->enter_map ($map, $x, $y);	2410	$self->enter_map ($map, $x, $y);
1520	}	2411	}
1521		2412
1522	cf::player->attach (	2413	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1523	on_logout => sub {
1524	my ($pl) = @_;
1525		2414
1526	# abort map switching before logout	2415	Moves the player to the given map-path and coordinates by first freezing
1527	if ($pl->ob->{_link_pos}) {	2416	her, loading and preparing them map, calling the provided $check callback
1528	cf::sync_job {	2417	that has to return the map if sucecssful, and then unfreezes the player on
1529	$pl->ob->leave_link	2418	the new (success) or old (failed) map position. In either case, $done will
1530	};	2419	be called at the end of this process.
1531	}
1532	},
1533	on_login => sub {
1534	my ($pl) = @_;
1535		2420
1536	# try to abort aborted map switching on player login :)
1537	# should happen only on crashes
1538	if ($pl->ob->{_link_pos}) {
1539	$pl->ob->enter_link;
1540	Coro::async {
1541	# we need this sleep as the login has a concurrent enter_exit running
1542	# and this sleep increases chances of the player not ending up in scorn
1543	Coro::Timer::sleep 1;
1544	$pl->ob->leave_link;
1545	};
1546	}
1547	},
1548	);
1549
1550	=item $player_object->goto_map ($path, $x, $y)
1551
1552	=cut	2421	=cut
1553		2422
		2423	our $GOTOGEN;
		2424
1554	sub cf::object::player::goto_map {	2425	sub cf::object::player::goto {
1555	my ($self, $path, $x, $y) = @_;	2426	my ($self, $path, $x, $y, $check, $done) = @_;
		2427
		2428	# do generation counting so two concurrent goto's will be executed in-order
		2429	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1556		2430
1557	$self->enter_link;	2431	$self->enter_link;
1558		2432
1559	(Coro::async {	2433	(async {
1560	$path = new cf::path $path;	2434	my $map = eval {
1561
1562	my $map = cf::map::find_map $path->as_string;	2435	my $map = cf::map::find $path;
		2436
		2437	if ($map) {
1563	$map = $map->customise_for ($self) if $map;	2438	$map = $map->customise_for ($self);
1564		2439	$map = $check->($map) if $check && $map;
1565	# warn "entering ", $map->path, " at ($x, $y)\n"	2440	} else {
1566	# if $map;
1567
1568	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2441	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2442	}
1569		2443
		2444	$map
		2445	};
		2446
		2447	if ($@) {
		2448	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2449	LOG llevError | logBacktrace, Carp::longmess $@;
		2450	}
		2451
		2452	if ($gen == $self->{_goto_generation}) {
		2453	delete $self->{_goto_generation};
1570	$self->leave_link ($map, $x, $y);	2454	$self->leave_link ($map, $x, $y);
		2455	}
		2456
		2457	$done->() if $done;
1571	})->prio (1);	2458	})->prio (1);
1572	}	2459	}
1573		2460
1574	=item $player_object->enter_exit ($exit_object)	2461	=item $player_object->enter_exit ($exit_object)
1575		2462
…		…
1577		2464
1578	sub parse_random_map_params {	2465	sub parse_random_map_params {
1579	my ($spec) = @_;	2466	my ($spec) = @_;
1580		2467
1581	my $rmp = { # defaults	2468	my $rmp = { # defaults
1582	xsize => 10,	2469	xsize => (cf::rndm 15, 40),
1583	ysize => 10,	2470	ysize => (cf::rndm 15, 40),
		2471	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2472	#layout => string,
1584	};	2473	};
1585		2474
1586	for (split /\n/, $spec) {	2475	for (split /\n/, $spec) {
1587	my ($k, $v) = split /\s+/, $_, 2;	2476	my ($k, $v) = split /\s+/, $_, 2;
1588		2477
…		…
1592	$rmp	2481	$rmp
1593	}	2482	}
1594		2483
1595	sub prepare_random_map {	2484	sub prepare_random_map {
1596	my ($exit) = @_;	2485	my ($exit) = @_;
		2486
		2487	my $guard = cf::lock_acquire "exit_prepare:$exit";
1597		2488
1598	# all this does is basically replace the /! path by	2489	# all this does is basically replace the /! path by
1599	# a new random map path (?random/...) with a seed	2490	# a new random map path (?random/...) with a seed
1600	# that depends on the exit object	2491	# that depends on the exit object
1601		2492
1602	my $rmp = parse_random_map_params $exit->msg;	2493	my $rmp = parse_random_map_params $exit->msg;
1603		2494
1604	if ($exit->map) {	2495	if ($exit->map) {
1605	$rmp->{region} = $exit->map->region_name;	2496	$rmp->{region} = $exit->region->name;
1606	$rmp->{origin_map} = $exit->map->path;	2497	$rmp->{origin_map} = $exit->map->path;
1607	$rmp->{origin_x} = $exit->x;	2498	$rmp->{origin_x} = $exit->x;
1608	$rmp->{origin_y} = $exit->y;	2499	$rmp->{origin_y} = $exit->y;
1609	}	2500	}
1610		2501
1611	$rmp->{random_seed} ||= $exit->random_seed;	2502	$rmp->{random_seed} ||= $exit->random_seed;
1612		2503
1613	my $data = cf::to_json $rmp;	2504	my $data = cf::to_json $rmp;
1614	my $md5 = Digest::MD5::md5_hex $data;	2505	my $md5 = Digest::MD5::md5_hex $data;
		2506	my $meta = "$RANDOMDIR/$md5.meta";
1615		2507
1616	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2508	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1617	aio_write $fh, 0, (length $data), $data, 0;	2509	aio_write $fh, 0, (length $data), $data, 0;
		2510	undef $fh;
		2511	aio_rename "$meta~", $meta;
1618		2512
1619	$exit->slaying ("?random/$md5");	2513	$exit->slaying ("?random/$md5");
1620	$exit->msg (undef);	2514	$exit->msg (undef);
1621	}	2515	}
1622	}	2516	}
…		…
1624	sub cf::object::player::enter_exit {	2518	sub cf::object::player::enter_exit {
1625	my ($self, $exit) = @_;	2519	my ($self, $exit) = @_;
1626		2520
1627	return unless $self->type == cf::PLAYER;	2521	return unless $self->type == cf::PLAYER;
1628		2522
		2523	if ($exit->slaying eq "/!") {
		2524	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2525	# the problem is that $exit might not survive long enough
		2526	# so it needs to be done right now, right here
		2527	cf::sync_job { prepare_random_map $exit };
		2528	}
		2529
		2530	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2531	my $hp = $exit->stats->hp;
		2532	my $sp = $exit->stats->sp;
		2533
1629	$self->enter_link;	2534	$self->enter_link;
1630		2535
		2536	# if exit is damned, update players death & WoR home-position
		2537	$self->contr->savebed ($slaying, $hp, $sp)
		2538	if $exit->flag (FLAG_DAMNED);
		2539
1631	(Coro::async {	2540	(async {
		2541	$self->deactivate_recursive; # just to be sure
1632	unless (eval {	2542	unless (eval {
1633		2543	$self->goto ($slaying, $hp, $sp);
1634	prepare_random_map $exit
1635	if $exit->slaying eq "/!";
1636
1637	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1638	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1639		2544
1640	1;	2545	1;
1641	}) {	2546	}) {
1642	$self->message ("Something went wrong deep within the crossfire server. "	2547	$self->message ("Something went wrong deep within the crossfire server. "
1643	. "I'll try to bring you back to the map you were before. "	2548	. "I'll try to bring you back to the map you were before. "
1644	. "Please report this to the dungeon master",	2549	. "Please report this to the dungeon master!",
1645	cf::NDI_UNIQUE | cf::NDI_RED);	2550	cf::NDI_UNIQUE | cf::NDI_RED);
1646		2551
1647	warn "ERROR in enter_exit: $@";	2552	warn "ERROR in enter_exit: $@";
1648	$self->leave_link;	2553	$self->leave_link;
1649	}	2554	}
1650	})->prio (1);	2555	})->prio (1);
…		…
1663		2568
1664	sub cf::client::send_drawinfo {	2569	sub cf::client::send_drawinfo {
1665	my ($self, $text, $flags) = @_;	2570	my ($self, $text, $flags) = @_;
1666		2571
1667	utf8::encode $text;	2572	utf8::encode $text;
1668	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2573	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1669	}	2574	}
1670		2575
		2576	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2577
		2578	Send a drawinfo or msg packet to the client, formatting the msg for the
		2579	client if neccessary. C<$type> should be a string identifying the type of
		2580	the message, with C<log> being the default. If C<$color> is negative, suppress
		2581	the message unless the client supports the msg packet.
		2582
		2583	=cut
		2584
		2585	our %CHANNEL = (
		2586	"c/identify" => {
		2587	id => "identify",
		2588	title => "Identify",
		2589	reply => undef,
		2590	tooltip => "Items recently identified",
		2591	},
		2592	"c/examine" => {
		2593	id => "examine",
		2594	title => "Examine",
		2595	reply => undef,
		2596	tooltip => "Signs and other items you examined",
		2597	},
		2598	);
		2599
		2600	sub cf::client::send_msg {
		2601	my ($self, $channel, $msg, $color, @extra) = @_;
		2602
		2603	$msg = $self->pl->expand_cfpod ($msg);
		2604
		2605	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2606
		2607	# check predefined channels, for the benefit of C
		2608	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2609
		2610	if (ref $channel) {
		2611	# send meta info to client, if not yet sent
		2612	unless (exists $self->{channel}{$channel->{id}}) {
		2613	$self->{channel}{$channel->{id}} = $channel;
		2614	$self->ext_msg (channel_info => $channel)
		2615	if $self->can_msg;
		2616	}
		2617
		2618	$channel = $channel->{id};
		2619	}
		2620
		2621	return unless @extra || length $msg;
		2622
		2623	if ($self->can_msg) {
		2624	# default colour, mask it out
		2625	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2626	if $color & cf::NDI_DEF;
		2627
		2628	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2629	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2630	} else {
		2631	if ($color >= 0) {
		2632	# replace some tags by gcfclient-compatible ones
		2633	for ($msg) {
		2634	1 while
		2635	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2636	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2637	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2638	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2639	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2640	}
		2641
		2642	$color &= cf::NDI_COLOR_MASK;
		2643
		2644	utf8::encode $msg;
		2645
		2646	if (0 && $msg =~ /\[/) {
		2647	# COMMAND/INFO
		2648	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2649	} else {
		2650	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2651	$self->send_packet ("drawinfo $color $msg")
		2652	}
		2653	}
		2654	}
		2655	}
		2656
		2657	=item $client->ext_msg ($type, @msg)
		2658
		2659	Sends an ext event to the client.
		2660
		2661	=cut
		2662
		2663	sub cf::client::ext_msg($$@) {
		2664	my ($self, $type, @msg) = @_;
		2665
		2666	if ($self->extcmd == 2) {
		2667	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2668	} elsif ($self->extcmd == 1) { # TODO: remove
		2669	push @msg, msgtype => "event_$type";
		2670	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2671	}
		2672	}
		2673
		2674	=item $client->ext_reply ($msgid, @msg)
		2675
		2676	Sends an ext reply to the client.
		2677
		2678	=cut
		2679
		2680	sub cf::client::ext_reply($$@) {
		2681	my ($self, $id, @msg) = @_;
		2682
		2683	if ($self->extcmd == 2) {
		2684	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2685	} elsif ($self->extcmd == 1) {
		2686	#TODO: version 1, remove
		2687	unshift @msg, msgtype => "reply", msgid => $id;
		2688	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2689	}
		2690	}
1671		2691
1672	=item $success = $client->query ($flags, "text", \&cb)	2692	=item $success = $client->query ($flags, "text", \&cb)
1673		2693
1674	Queues a query to the client, calling the given callback with	2694	Queues a query to the client, calling the given callback with
1675	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1676	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1677		2697
1678	Queries can fail, so check the return code. Or don't, as queries will become	2698	Queries can fail, so check the return code. Or don't, as queries will
1679	reliable at some point in the future.	2699	become reliable at some point in the future.
1680		2700
1681	=cut	2701	=cut
1682		2702
1683	sub cf::client::query {	2703	sub cf::client::query {
1684	my ($self, $flags, $text, $cb) = @_;	2704	my ($self, $flags, $text, $cb) = @_;
…		…
1692	utf8::encode $text;	2712	utf8::encode $text;
1693	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1694		2714
1695	$self->send_packet ($self->{query_queue}[0][0])	2715	$self->send_packet ($self->{query_queue}[0][0])
1696	if @{ $self->{query_queue} } == 1;	2716	if @{ $self->{query_queue} } == 1;
		2717
		2718	1
1697	}	2719	}
1698		2720
1699	cf::client->attach (	2721	cf::client->attach (
		2722	on_connect => sub {
		2723	my ($ns) = @_;
		2724
		2725	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2726	},
1700	on_reply => sub {	2727	on_reply => sub {
1701	my ($ns, $msg) = @_;	2728	my ($ns, $msg) = @_;
1702		2729
1703	# this weird shuffling is so that direct followup queries	2730	# this weird shuffling is so that direct followup queries
1704	# get handled first	2731	# get handled first
1705	my $queue = delete $ns->{query_queue};	2732	my $queue = delete $ns->{query_queue}
		2733	or return; # be conservative, not sure how that can happen, but we saw a crash here
1706		2734
1707	(shift @$queue)->[1]->($msg);	2735	(shift @$queue)->[1]->($msg);
		2736	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1708		2737
1709	push @{ $ns->{query_queue} }, @$queue;	2738	push @{ $ns->{query_queue} }, @$queue;
1710		2739
1711	if (@{ $ns->{query_queue} } == @$queue) {	2740	if (@{ $ns->{query_queue} } == @$queue) {
1712	if (@$queue) {	2741	if (@$queue) {
…		…
1714	} else {	2743	} else {
1715	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2744	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1716	}	2745	}
1717	}	2746	}
1718	},	2747	},
		2748	on_exticmd => sub {
		2749	my ($ns, $buf) = @_;
		2750
		2751	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2752
		2753	if (ref $msg) {
		2754	my ($type, $reply, @payload) =
		2755	"ARRAY" eq ref $msg
		2756	? @$msg
		2757	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2758
		2759	my @reply;
		2760
		2761	if (my $cb = $EXTICMD{$type}) {
		2762	@reply = $cb->($ns, @payload);
		2763	}
		2764
		2765	$ns->ext_reply ($reply, @reply)
		2766	if $reply;
		2767
		2768	} else {
		2769	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2770	}
		2771
		2772	cf::override;
		2773	},
1719	);	2774	);
1720		2775
1721	=item $client->coro (\&cb)	2776	=item $client->async (\&cb)
1722		2777
1723	Create a new coroutine, running the specified callback. The coroutine will	2778	Create a new coroutine, running the specified callback. The coroutine will
1724	be automatically cancelled when the client gets destroyed (e.g. on logout,	2779	be automatically cancelled when the client gets destroyed (e.g. on logout,
1725	or loss of connection).	2780	or loss of connection).
1726		2781
1727	=cut	2782	=cut
1728		2783
1729	sub cf::client::coro {	2784	sub cf::client::async {
1730	my ($self, $cb) = @_;	2785	my ($self, $cb) = @_;
1731		2786
1732	my $coro; $coro = async {	2787	my $coro = &Coro::async ($cb);
1733	eval {
1734	$cb->();
1735	};
1736	warn $@ if $@;
1737	};
1738		2788
1739	$coro->on_destroy (sub {	2789	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2790	delete $self->{_coro}{$coro+0};
1741	});	2791	});
1742		2792
…		…
1769	our $safe = new Safe "safe";	2819	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	2820	our $safe_hole = new Safe::Hole;
1771		2821
1772	$SIG{FPE} = 'IGNORE';	2822	$SIG{FPE} = 'IGNORE';
1773		2823
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2824	$safe->permit_only (Opcode::opset qw(
		2825	:base_core :base_mem :base_orig :base_math
		2826	grepstart grepwhile mapstart mapwhile
		2827	sort time
		2828	));
1775		2829
1776	# here we export the classes and methods available to script code	2830	# here we export the classes and methods available to script code
1777		2831
1778	=pod	2832	=pod
1779		2833
1780	The following fucntions and emthods are available within a safe environment:	2834	The following functions and methods are available within a safe environment:
1781		2835
1782	cf::object contr pay_amount pay_player map	2836	cf::object
		2837	contr pay_amount pay_player map x y force_find force_add
		2838	insert remove name archname title slaying race decrease_ob_nr
		2839
1783	cf::object::player player	2840	cf::object::player
1784	cf::player peaceful	2841	player
1785	cf::map trigger	2842
		2843	cf::player
		2844	peaceful
		2845
		2846	cf::map
		2847	trigger
1786		2848
1787	=cut	2849	=cut
1788		2850
1789	for (	2851	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	2852	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2853	insert remove inv name archname title slaying race
		2854	decrease_ob_nr)],
1791	["cf::object::player" => qw(player)],	2855	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	2856	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	2857	["cf::map" => qw(trigger)],
1794	) {	2858	) {
1795	no strict 'refs';	2859	no strict 'refs';
…		…
1866	=back	2930	=back
1867		2931
1868	=cut	2932	=cut
1869		2933
1870	#############################################################################	2934	#############################################################################
		2935	# the server's init and main functions
1871		2936
1872	=head2 EXTENSION DATABASE SUPPORT	2937	sub load_facedata($) {
		2938	my ($path) = @_;
1873		2939
1874	Crossfire maintains a very simple database for extension use. It can	2940	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	2941	# for this (global event?)
1876	excludes objects.	2942	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		2943
1878	The parameter C<$family> should best start with the name of the extension	2944	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		2945
1881	=over 4	2946	warn "loading facedata from $path\n";
1882		2947
1883	=item $hashref = cf::db_get $family	2948	my $facedata;
		2949	0 < aio_load $path, $facedata
		2950	or die "$path: $!";
1884		2951
1885	Return a hashref for use by the extension C<$family>, which can be	2952	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		2953
1889	=item $value = cf::db_get $family => $key	2954	$facedata->{version} == 2
		2955	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2956
1891	Returns a single value from the database	2957	# patch in the exptable
1892		2958	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	2959	type => FT_RSRC,
1894		2960	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	warn "loading database $path\n";#d# remove later
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	warn "saving database $path\n";#d# remove later
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	2961	};
		2962	cf::cede_to_tick;
1946		2963
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	2964	{
		2965	my $faces = $facedata->{faceinfo};
1951		2966
1952	sub db_get($;$) {	2967	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	2968	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}	2969	cf::face::set_visibility $idx, $info->{visibility};
1955	: ($DB->{$_[0]} ||= { })	2970	cf::face::set_magicmap $idx, $info->{magicmap};
1956	}	2971	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2972	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1957		2973
1958	sub db_put($$;$) {	2974	cf::cede_to_tick;
1959	if (@_ >= 3) {
1960	$DB->{$_[0]}{$_[1]} = $_[2];
1961	} else {
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966
1967	cf::global->attach (
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	2975	}
1972	);
1973	}
1974		2976
1975	#############################################################################	2977	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	2978	next unless $info->{smooth};
		2979	my $idx = cf::face::find $face
		2980	or next;
		2981	if (my $smooth = cf::face::find $info->{smooth}) {
		2982	cf::face::set_smooth $idx, $smooth;
		2983	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2984	} else {
		2985	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2986	}
1977		2987
1978	sub cfg_load {	2988	cf::cede_to_tick;
		2989	}
		2990	}
		2991
		2992	{
		2993	my $anims = $facedata->{animinfo};
		2994
		2995	while (my ($anim, $info) = each %$anims) {
		2996	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2997	cf::cede_to_tick;
		2998	}
		2999
		3000	cf::anim::invalidate_all; # d'oh
		3001	}
		3002
		3003	{
		3004	# TODO: for gcfclient pleasure, we should give resources
		3005	# that gcfclient doesn't grok a >10000 face index.
		3006	my $res = $facedata->{resource};
		3007
		3008	my $soundconf = delete $res->{"res/sound.conf"};
		3009
		3010	while (my ($name, $info) = each %$res) {
		3011	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3012	my $data;
		3013
		3014	if ($info->{type} & 1) {
		3015	# prepend meta info
		3016
		3017	my $meta = $enc->encode ({
		3018	name => $name,
		3019	%{ $info->{meta} || {} },
		3020	});
		3021
		3022	$data = pack "(w/a*)*", $meta, $info->{data};
		3023	} else {
		3024	$data = $info->{data};
		3025	}
		3026
		3027	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3028	cf::face::set_type $idx, $info->{type};
		3029
		3030	cf::cede_to_tick;
		3031	}
		3032
		3033	if ($soundconf) {
		3034	$soundconf = $enc->decode (delete $soundconf->{data});
		3035
		3036	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3037	my $sound = $soundconf->{compat}[$_]
		3038	or next;
		3039
		3040	my $face = cf::face::find "sound/$sound->[1]";
		3041	cf::sound::set $sound->[0] => $face;
		3042	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3043	}
		3044
		3045	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3046	my $face = cf::face::find "sound/$v";
		3047	cf::sound::set $k => $face;
		3048	}
		3049	}
		3050	}
		3051
		3052	1
		3053	}
		3054
		3055	register_exticmd fx_want => sub {
		3056	my ($ns, $want) = @_;
		3057
		3058	while (my ($k, $v) = each %$want) {
		3059	$ns->fx_want ($k, $v);
		3060	}
		3061	};
		3062
		3063	sub reload_regions {
		3064	# HACK to clear player env face cache, we need some signal framework
		3065	# for this (global event?)
		3066	%ext::player_env::MUSIC_FACE_CACHE = ();
		3067
		3068	load_resource_file "$MAPDIR/regions"
		3069	or die "unable to load regions file\n";
		3070
		3071	for (cf::region::list) {
		3072	$_->{match} = qr/$_->{match}/
		3073	if exists $_->{match};
		3074	}
		3075	}
		3076
		3077	sub reload_facedata {
		3078	load_facedata "$DATADIR/facedata"
		3079	or die "unable to load facedata\n";
		3080	}
		3081
		3082	sub reload_archetypes {
		3083	load_resource_file "$DATADIR/archetypes"
		3084	or die "unable to load archetypes\n";
		3085	#d# NEED to laod twice to resolve forward references
		3086	# this really needs to be done in an extra post-pass
		3087	# (which needs to be synchronous, so solve it differently)
		3088	load_resource_file "$DATADIR/archetypes"
		3089	or die "unable to load archetypes\n";
		3090	}
		3091
		3092	sub reload_treasures {
		3093	load_resource_file "$DATADIR/treasures"
		3094	or die "unable to load treasurelists\n";
		3095	}
		3096
		3097	sub reload_resources {
		3098	warn "reloading resource files...\n";
		3099
		3100	reload_regions;
		3101	reload_facedata;
		3102	#reload_archetypes;#d#
		3103	reload_archetypes;
		3104	reload_treasures;
		3105
		3106	warn "finished reloading resource files\n";
		3107	}
		3108
		3109	sub init {
		3110	reload_resources;
		3111	}
		3112
		3113	sub reload_config {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3114	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3115	or return;
1981		3116
1982	local $/;	3117	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3118	*CFG = YAML::Syck::Load <$fh>;
		3119
		3120	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3121
		3122	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3123	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3124
		3125	if (exists $CFG{mlockall}) {
		3126	eval {
		3127	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3128	and die "WARNING: m(un)lockall failed: $!\n";
		3129	};
		3130	warn $@ if $@;
		3131	}
1984	}	3132	}
1985		3133
1986	sub main {	3134	sub main {
1987	# we must not ever block the main coroutine	3135	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3136	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3137	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3138	(async {
1991	Event::one_event;	3139	Event::one_event;
1992	})->();	3140	})->prio (Coro::PRIO_MAX);
1993	};	3141	};
1994		3142
1995	cfg_load;	3143	reload_config;
1996	db_load;	3144	db_init;
1997	load_extensions;	3145	load_extensions;
		3146
		3147	$TICK_WATCHER->start;
1998	Event::loop;	3148	Event::loop;
1999	}	3149	}
2000		3150
2001	#############################################################################	3151	#############################################################################
2002	# initialisation	3152	# initialisation and cleanup
2003		3153
		3154	# install some emergency cleanup handlers
		3155	BEGIN {
		3156	for my $signal (qw(INT HUP TERM)) {
		3157	Event->signal (
		3158	reentrant => 0,
		3159	data => WF_AUTOCANCEL,
		3160	signal => $signal,
		3161	prio => 0,
		3162	cb => sub {
		3163	cf::cleanup "SIG$signal";
		3164	},
		3165	);
		3166	}
		3167	}
		3168
		3169	sub write_runtime {
		3170	my $runtime = "$LOCALDIR/runtime";
		3171
		3172	# first touch the runtime file to show we are still running:
		3173	# the fsync below can take a very very long time.
		3174
		3175	IO::AIO::aio_utime $runtime, undef, undef;
		3176
		3177	my $guard = cf::lock_acquire "write_runtime";
		3178
		3179	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3180	or return;
		3181
		3182	my $value = $cf::RUNTIME + 90 + 10;
		3183	# 10 is the runtime save interval, for a monotonic clock
		3184	# 60 allows for the watchdog to kill the server.
		3185
		3186	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3187	and return;
		3188
		3189	# always fsync - this file is important
		3190	aio_fsync $fh
		3191	and return;
		3192
		3193	# touch it again to show we are up-to-date
		3194	aio_utime $fh, undef, undef;
		3195
		3196	close $fh
		3197	or return;
		3198
		3199	aio_rename "$runtime~", $runtime
		3200	and return;
		3201
		3202	warn "runtime file written.\n";
		3203
		3204	1
		3205	}
		3206
		3207	sub emergency_save() {
		3208	my $freeze_guard = cf::freeze_mainloop;
		3209
		3210	warn "enter emergency perl save\n";
		3211
		3212	cf::sync_job {
		3213	# use a peculiar iteration method to avoid tripping on perl
		3214	# refcount bugs in for. also avoids problems with players
		3215	# and maps saved/destroyed asynchronously.
		3216	warn "begin emergency player save\n";
		3217	for my $login (keys %cf::PLAYER) {
		3218	my $pl = $cf::PLAYER{$login} or next;
		3219	$pl->valid or next;
		3220	$pl->save;
		3221	}
		3222	warn "end emergency player save\n";
		3223
		3224	warn "begin emergency map save\n";
		3225	for my $path (keys %cf::MAP) {
		3226	my $map = $cf::MAP{$path} or next;
		3227	$map->valid or next;
		3228	$map->save;
		3229	}
		3230	warn "end emergency map save\n";
		3231
		3232	warn "begin emergency database checkpoint\n";
		3233	BDB::db_env_txn_checkpoint $DB_ENV;
		3234	warn "end emergency database checkpoint\n";
		3235	};
		3236
		3237	warn "leave emergency perl save\n";
		3238	}
		3239
		3240	sub post_cleanup {
		3241	my ($make_core) = @_;
		3242
		3243	warn Carp::longmess "post_cleanup backtrace"
		3244	if $make_core;
		3245	}
		3246
2004	sub reload() {	3247	sub do_reload_perl() {
2005	# can/must only be called in main	3248	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3249	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3250	warn "can only reload from main coroutine";
2008	return;	3251	return;
2009	}	3252	}
2010		3253
2011	warn "reloading...";	3254	warn "reloading...";
2012		3255
2013	local $FREEZE = 1;	3256	warn "entering sync_job";
		3257
		3258	cf::sync_job {
		3259	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	3260	cf::emergency_save;
		3261	cf::write_runtime; # external watchdog should not bark
2015		3262
2016	eval {	3263	warn "syncing database to disk";
		3264	BDB::db_env_txn_checkpoint $DB_ENV;
		3265
2017	# if anything goes wrong in here, we should simply crash as we already saved	3266	# if anything goes wrong in here, we should simply crash as we already saved
2018		3267
2019	# cancel all watchers	3268	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	3269	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3270	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	3271	}
2023		3272
		3273	warn "flushing outstanding aio requests";
		3274	for (;;) {
		3275	BDB::flush;
		3276	IO::AIO::flush;
		3277	Coro::cede;
		3278	last unless IO::AIO::nreqs || BDB::nreqs;
		3279	warn "iterate...";
		3280	}
		3281
		3282	++$RELOAD;
		3283
2024	# cancel all extension coros	3284	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3285	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3286	%EXT_CORO = ();
2027		3287
2028	# unload all extensions	3288	warn "removing commands";
2029	for (@exts) {	3289	%COMMAND = ();
		3290
		3291	warn "removing ext/exti commands";
		3292	%EXTCMD = ();
		3293	%EXTICMD = ();
		3294
		3295	warn "unloading/nuking all extensions";
		3296	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	3297	warn "... unloading $pkg";
2031	unload_extension $_;	3298
		3299	if (my $cb = $pkg->can ("unload")) {
		3300	eval {
		3301	$cb->($pkg);
		3302	1
		3303	} or warn "$pkg unloaded, but with errors: $@";
2032	}	3304	}
2033		3305
		3306	warn "... nuking $pkg";
		3307	Symbol::delete_package $pkg;
		3308	}
		3309
2034	# unload all modules loaded from $LIBDIR	3310	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	3311	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3312	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		3313
2038	warn "removing <$k>";	3314	warn "... unloading $k";
2039	delete $INC{$k};	3315	delete $INC{$k};
2040		3316
2041	$k =~ s/\.pm$//;	3317	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	3318	$k =~ s/\//::/g;
2043		3319
…		…
2046	}	3322	}
2047		3323
2048	Symbol::delete_package $k;	3324	Symbol::delete_package $k;
2049	}	3325	}
2050		3326
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3327	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3328	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3329	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3330
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	3331	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	3332	delete $INC{"cf.pm"};
		3333	delete $INC{"cf/pod.pm"};
2064		3334
2065	# don't, removes xs symbols, too,	3335	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3336	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3337	#Symbol::delete_package __PACKAGE__;
2068		3338
2069	# reload cf.pm	3339	warn "unload completed, starting to reload now";
		3340
2070	warn "reloading cf.pm";	3341	warn "reloading cf.pm";
2071	require cf;	3342	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3343	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3344
2074	# load config and database again	3345	warn "loading config and database again";
2075	cf::cfg_load;	3346	cf::reload_config;
2076	cf::db_load;
2077		3347
2078	# load extensions
2079	warn "load extensions";	3348	warn "loading extensions";
2080	cf::load_extensions;	3349	cf::load_extensions;
2081		3350
2082	# reattach attachments to objects	3351	warn "reattaching attachments to objects/players";
2083	warn "reattach";	3352	_global_reattach; # objects, sockets
2084	_global_reattach;	3353	warn "reattaching attachments to maps";
2085	};	3354	reattach $_ for values %MAP;
		3355	warn "reattaching attachments to players";
		3356	reattach $_ for values %PLAYER;
2086		3357
2087	if ($@) {	3358	warn "leaving sync_job";
		3359
		3360	1
		3361	} or do {
2088	warn $@;	3362	warn $@;
2089	warn "error while reloading, exiting.";	3363	warn "error while reloading, exiting.";
2090	exit 1;	3364	exit 1;
2091	}	3365	};
2092		3366
2093	warn "reloaded successfully";	3367	warn "reloaded";
2094	};	3368	};
2095		3369
2096	#############################################################################	3370	our $RELOAD_WATCHER; # used only during reload
2097		3371
2098	unless ($LINK_MAP) {	3372	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	3373	# doing reload synchronously and two reloads happen back-to-back,
		3374	# coro crashes during coro_state_free->destroy here.
2100		3375
2101	$LINK_MAP->width (41);	3376	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	3377	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	3378	after => 0,
		3379	data => WF_AUTOCANCEL,
2111	cb => sub {	3380	cb => sub {
2112	$_[0]->w->cancel;	3381	do_reload_perl;
2113		3382	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	3383	},
2132		3384	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3385	}
2138
2139	register "<global>", __PACKAGE__;
2140		3386
2141	register_command "reload" => sub {	3387	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3388	my ($who, $arg) = @_;
2143		3389
2144	if ($who->flag (FLAG_WIZ)) {	3390	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3391	$who->message ("reloading server.");
		3392	async { reload_perl };
2148	}	3393	}
2149	};	3394	};
2150		3395
2151	unshift @INC, $LIBDIR;	3396	unshift @INC, $LIBDIR;
2152		3397
		3398	my $bug_warning = 0;
		3399
		3400	our @WAIT_FOR_TICK;
		3401	our @WAIT_FOR_TICK_BEGIN;
		3402
		3403	sub wait_for_tick {
		3404	return unless $TICK_WATCHER->is_active;
		3405	return if $Coro::current == $Coro::main;
		3406
		3407	my $signal = new Coro::Signal;
		3408	push @WAIT_FOR_TICK, $signal;
		3409	$signal->wait;
		3410	}
		3411
		3412	sub wait_for_tick_begin {
		3413	return unless $TICK_WATCHER->is_active;
		3414	return if $Coro::current == $Coro::main;
		3415
		3416	my $signal = new Coro::Signal;
		3417	push @WAIT_FOR_TICK_BEGIN, $signal;
		3418	$signal->wait;
		3419	}
		3420
		3421	my $min = 1e6;#d#
		3422	my $avg = 10;
2153	$TICK_WATCHER = Event->timer (	3423	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	3424	reentrant => 0,
		3425	parked => 1,
2155	prio => 0,	3426	prio => 0,
2156	at => $NEXT_TICK || $TICK,	3427	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	3428	data => WF_AUTOCANCEL,
2158	cb => sub {	3429	cb => sub {
2159	unless ($FREEZE) {	3430	if ($Coro::current != $Coro::main) {
		3431	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3432	unless ++$bug_warning > 10;
		3433	return;
		3434	}
		3435
		3436	$NOW = $tick_start = Event::time;
		3437
2160	cf::server_tick; # one server iteration	3438	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;	3439
		3440	0 && sync_job {#d#
		3441	for(1..10) {
		3442	my $t = Event::time;
		3443	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3444	or die;
		3445
		3446	$map->width (50);
		3447	$map->height (50);
		3448	$map->alloc;
		3449	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3450	my $t = Event::time - $t;
		3451
		3452	#next unless $t < 0.0013;#d#
		3453	if ($t < $min) {
		3454	$min = $t;
		3455	}
		3456	$avg = $avg * 0.99 + $t * 0.01;
		3457	}
		3458	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3459	exit 0;
		3460	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2162	}	3461	};
2163		3462
		3463	$RUNTIME += $TICK;
2164	$NEXT_TICK += $TICK;	3464	$NEXT_TICK += $TICK;
2165		3465
		3466	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3467	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3468	Coro::async_pool {
		3469	write_runtime
		3470	or warn "ERROR: unable to write runtime file: $!";
		3471	};
		3472	}
		3473
		3474	# my $AFTER = Event::time;
		3475	# warn $AFTER - $NOW;#d#
		3476
		3477	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3478	$sig->send;
		3479	}
		3480	while (my $sig = shift @WAIT_FOR_TICK) {
		3481	$sig->send;
		3482	}
		3483
		3484	$NOW = Event::time;
		3485
2166	# if we are delayed by four ticks or more, skip them all	3486	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3487	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2168		3488
2169	$TICK_WATCHER->at ($NEXT_TICK);	3489	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	3490	$TICK_WATCHER->start;
		3491
		3492	$LOAD = ($NOW - $tick_start) / $TICK;
		3493	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3494
		3495	_post_tick;
		3496
		3497
2171	},	3498	},
2172	);	3499	);
2173		3500
		3501	{
2174	IO::AIO::max_poll_time $TICK * 0.2;	3502	BDB::max_poll_time $TICK * 0.1;
2175		3503	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	3504	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	3505	fd => BDB::poll_fileno,
2178	poll => 'r',	3506	poll => 'r',
2179	prio => 5,	3507	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	3508	data => WF_AUTOCANCEL,
2186	after => 0,	3509	cb => \&BDB::poll_cb,
2187	interval => 10,	3510	);
2188	cb => sub {	3511	BDB::min_parallel 8;
2189	(Coro::unblock_sub {	3512
2190	write_runtime	3513	BDB::set_sync_prepare {
2191	or warn "ERROR: unable to write runtime file: $!";	3514	my $status;
		3515	my $current = $Coro::current;
		3516	(
		3517	sub {
		3518	$status = $!;
		3519	$current->ready; undef $current;
		3520	},
		3521	sub {
		3522	Coro::schedule while defined $current;
		3523	$! = $status;
		3524	},
		3525	)
		3526	};
		3527
		3528	unless ($DB_ENV) {
		3529	$DB_ENV = BDB::db_env_create;
		3530
		3531	cf::sync_job {
		3532	eval {
		3533	BDB::db_env_open
		3534	$DB_ENV,
		3535	$BDBDIR,
		3536	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3537	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3538	0666;
		3539
		3540	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3541
		3542	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3543	$DB_ENV->set_lk_detect;
		3544	};
		3545
		3546	cf::cleanup "db_env_open(db): $@" if $@;
2192	})->();	3547	};
2193	},	3548	}
2194	);	3549	}
		3550
		3551	{
		3552	IO::AIO::min_parallel 8;
		3553
		3554	undef $Coro::AIO::WATCHER;
		3555	IO::AIO::max_poll_time $TICK * 0.1;
		3556	$AIO_POLL_WATCHER = Event->io (
		3557	reentrant => 0,
		3558	data => WF_AUTOCANCEL,
		3559	fd => IO::AIO::poll_fileno,
		3560	poll => 'r',
		3561	prio => 6,
		3562	cb => \&IO::AIO::poll_cb,
		3563	);
		3564	}
		3565
		3566	my $_log_backtrace;
		3567
		3568	sub _log_backtrace {
		3569	my ($msg, @addr) = @_;
		3570
		3571	$msg =~ s/\n//;
		3572
		3573	# limit the # of concurrent backtraces
		3574	if ($_log_backtrace < 2) {
		3575	++$_log_backtrace;
		3576	async {
		3577	my @bt = fork_call {
		3578	@addr = map { sprintf "%x", $_ } @addr;
		3579	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3580	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3581	or die "addr2line: $!";
		3582
		3583	my @funcs;
		3584	my @res = <$fh>;
		3585	chomp for @res;
		3586	while (@res) {
		3587	my ($func, $line) = splice @res, 0, 2, ();
		3588	push @funcs, "[$func] $line";
		3589	}
		3590
		3591	@funcs
		3592	};
		3593
		3594	LOG llevInfo, "[ABT] $msg\n";
		3595	LOG llevInfo, "[ABT] $_\n" for @bt;
		3596	--$_log_backtrace;
		3597	};
		3598	} else {
		3599	LOG llevInfo, "[ABT] $msg\n";
		3600	LOG llevInfo, "[ABT] [suppressed]\n";
		3601	}
		3602	}
		3603
		3604	# load additional modules
		3605	use cf::pod;
		3606
		3607	END { cf::emergency_save }
2195		3608
2196	1	3609	1
2197		3610

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