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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.219 by root, Sat Feb 17 03:19:44 2007 UTC vs.
Revision 1.410 by root, Tue Jan 15 12:02:24 2008 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 Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.5 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
20	use BDB ();	28	use BDB ();
21	use Data::Dumper;	29	use Data::Dumper;
22	use Digest::MD5;	30	use Digest::MD5;
23	use Fcntl;	31	use Fcntl;
		32	use YAML ();
24	use IO::AIO 2.32 ();	33	use IO::AIO 2.51 ();
25	use YAML::Syck ();
26	use Time::HiRes;	34	use Time::HiRes;
27	use Compress::LZF;	35	use Compress::LZF;
		36	use Digest::MD5 ();
28		37
		38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		45
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		47
40	our %COMMAND = ();	48	our %COMMAND = ();
41	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
42		50
43	our @EXTS = (); # list of extension package names	51	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
47		56
		57	our $RELOAD; # number of reloads so far
48	our @EVENT;	58	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		59
51	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
52	our $TICK_WATCHER;	74	our $TICK_WATCHER;
53	our $AIO_POLL_WATCHER;	75	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	77	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		79
59	our $BDB_POLL_WATCHER;	80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	84	our $DB_ENV;
61		85
62	our %CFG;	86	our %CFG;
63		87
64	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
66		91
67	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	94	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		95
76	# used to convert map paths into valid unix filenames by replacing / by ∕	96	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $tick_start; # for load detecting purposes
		102
79	binmode STDOUT;	103	binmode STDOUT;
80	binmode STDERR;	104	binmode STDERR;
81		105
82	# read virtual server time, if available	106	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
87	}	111	}
88		112
89	mkdir cf::localdir;	113	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		115
96	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
97		117
98	sub cf::map::normalise;	118	sub cf::map::normalise;
99		119
…		…
110	=item $cf::RUNTIME	130	=item $cf::RUNTIME
111		131
112	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
113	every server tick.	133	every server tick.
114		134
115	=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
116		138
117	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		143
120	=item $cf::NOW	144	=item $cf::NOW
121		145
122	The time of the last (current) server tick.	146	The time of the last (current) server tick.
123		147
124	=item $cf::TICK	148	=item $cf::TICK
125		149
126	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
127		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.
		161
128	=item %cf::CFG	162	=item %cf::CFG
129		163
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	165	from wherever your confdir points to.
132		166
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		168
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	170	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	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.
139		178
140	=back	179	=back
141		180
142	=cut	181	=cut
143		182
144	BEGIN {	183	BEGIN {
145	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	185	my $msg = join "", @_;
147	utf8::encode $msg;
148		186
149	$msg .= "\n"	187	$msg .= "\n"
150	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
151		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
152	LOG llevError, $msg;	192	LOG llevError, $msg;
153	};	193	};
154	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	return unless $^S eq 0; # "eq", not "=="
		198
		199	if ($Coro::current == $Coro::main) {#d#
		200	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		201	return;#d#
		202	}#d#
		203
		204	# kill coroutine otherwise
		205	warn Carp::longmess $_[0];
		206	Coro::terminate
		207	};
		208
		209	$SIG{__DIE__} = sub { }; #d#?
155		210
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	215	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		216	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	217	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		218
163	# we bless all objects into (empty) derived classes to force a method lookup	219	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	220	# within the Safe compartment.
165	for my $pkg (qw(	221	for my $pkg (qw(
166	cf::global cf::attachable	222	cf::global cf::attachable
…		…
171	)) {	227	)) {
172	no strict 'refs';	228	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	230	}
175		231
176	$Event::DIED = sub {	232	$EV::DIED = sub {
177	warn "error in event callback: @_";	233	warn "error in event callback: @_";
178	};	234	};
		235
		236	#############################################################################
179		237
180	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
181		239
182	=over 4	240	=over 4
183		241
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	260	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	261	$d
204	} || "[unable to dump $_[0]: '$@']";	262	} || "[unable to dump $_[0]: '$@']";
205	}	263	}
206		264
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
210		266
211	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
212		268
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
221		270
222	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
223		272
224	=cut	273	=cut
225		274
226	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
228	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
229	}	278	sub decode_json($) { $json_coder->decode ($_[0]) }
230		279
231	=item cf::lock_wait $string	280	=item cf::lock_wait $string
232		281
233	Wait until the given lock is available. See cf::lock_acquire.	282	Wait until the given lock is available. See cf::lock_acquire.
234		283
…		…
237	Wait until the given lock is available and then acquires it and returns	286	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	287	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	288	for example when the coroutine gets canceled), the lock is automatically
240	returned.	289	returned.
241		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
242	Lock names should begin with a unique identifier (for example, cf::map::find	294	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	295	uses map_find and cf::map::load uses map_load).
244		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
245	=cut	301	=cut
246		302
247	our %LOCK;	303	our %LOCK;
		304	our %LOCKER;#d#
248		305
249	sub lock_wait($) {	306	sub lock_wait($) {
250	my ($key) = @_;	307	my ($key) = @_;
		308
		309	if ($LOCKER{$key} == $Coro::current) {#d#
		310	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		311	return;#d#
		312	}#d#
251		313
252	# wait for lock, if any	314	# wait for lock, if any
253	while ($LOCK{$key}) {	315	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;	316	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	317	Coro::schedule;
…		…
261		323
262	# wait, to be sure we are not locked	324	# wait, to be sure we are not locked
263	lock_wait $key;	325	lock_wait $key;
264		326
265	$LOCK{$key} = [];	327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
266		329
267	Coro::guard {	330	Coro::guard {
		331	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	332	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	333	$_->ready for @{ delete $LOCK{$key} };
270	}	334	}
		335	}
		336
		337	sub lock_active($) {
		338	my ($key) = @_;
		339
		340	! ! $LOCK{$key}
271	}	341	}
272		342
273	sub freeze_mainloop {	343	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	344	return unless $TICK_WATCHER->is_active;
275		345
…		…
278	};	348	};
279	$TICK_WATCHER->stop;	349	$TICK_WATCHER->stop;
280	$guard	350	$guard
281	}	351	}
282		352
		353	=item cf::periodic $interval, $cb
		354
		355	Like EV::periodic, but randomly selects a starting point so that the actions
		356	get spread over timer.
		357
		358	=cut
		359
		360	sub periodic($$) {
		361	my ($interval, $cb) = @_;
		362
		363	my $start = rand List::Util::min 180, $interval;
		364
		365	EV::periodic $start, $interval, 0, $cb
		366	}
		367
		368	=item cf::get_slot $time[, $priority[, $name]]
		369
		370	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		371	This call blocks and returns only when you have at least C<$time> seconds
		372	of cpu time till the next tick. The slot is only valid till the next cede.
		373
		374	The optional C<$name> can be used to identify the job to run. It might be
		375	used for statistical purposes and should identify the same time-class.
		376
		377	Useful for short background jobs.
		378
		379	=cut
		380
		381	our @SLOT_QUEUE;
		382	our $SLOT_QUEUE;
		383
		384	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		385	$SLOT_QUEUE = Coro::async {
		386	$Coro::current->desc ("timeslot manager");
		387
		388	my $signal = new Coro::Signal;
		389
		390	while () {
		391	next_job:
		392	my $avail = cf::till_tick;
		393	if ($avail > 0.01) {
		394	for (0 .. $#SLOT_QUEUE) {
		395	if ($SLOT_QUEUE[$_][0] < $avail) {
		396	my $job = splice @SLOT_QUEUE, $_, 1, ();
		397	$job->[2]->send;
		398	Coro::cede;
		399	goto next_job;
		400	}
		401	}
		402	}
		403
		404	if (@SLOT_QUEUE) {
		405	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		406	push @cf::WAIT_FOR_TICK, $signal;
		407	$signal->wait;
		408	} else {
		409	Coro::schedule;
		410	}
		411	}
		412	};
		413
		414	sub get_slot($;$$) {
		415	my ($time, $pri, $name) = @_;
		416
		417	$time = $TICK * .6 if $time > $TICK * .6;
		418	my $sig = new Coro::Signal;
		419
		420	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		421	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		422	$SLOT_QUEUE->ready;
		423	$sig->wait;
		424	}
		425
283	=item cf::async { BLOCK }	426	=item cf::async { BLOCK }
284		427
285	Currently the same as Coro::async_pool, meaning you cannot use	428	Currently the same as Coro::async_pool, meaning you cannot use
286	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	429	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
287	thing you are allowed to do is call C<prio> on it.	430	thing you are allowed to do is call C<prio> on it.
…		…
290		433
291	BEGIN { *async = \&Coro::async_pool }	434	BEGIN { *async = \&Coro::async_pool }
292		435
293	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
294		437
295	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
298		442
299	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
302	fast or be very important.	446	fast or be very important.
…		…
305		449
306	sub sync_job(&) {	450	sub sync_job(&) {
307	my ($job) = @_;	451	my ($job) = @_;
308		452
309	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
310	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
312		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
313	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
314	# (but this is cancel-safe)	462	# (but this is cancel-safe)
315	my $freeze_guard = freeze_mainloop;	463	my $freeze_guard = freeze_mainloop;
316		464
317	my $busy = 1;	465	my $busy = 1;
318	my @res;	466	my @res;
319		467
320	(async {	468	(async {
		469	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	470	@res = eval { $job->() };
322	warn $@ if $@;	471	warn $@ if $@;
323	undef $busy;	472	undef $busy;
324	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
325		474
326	while ($busy) {	475	while ($busy) {
327	Coro::cede or Event::one_event;	476	if (Coro::nready) {
		477	Coro::cede_notself;
		478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
328	}	480	}
		481	}
		482
		483	$time = EV::time - $time;
		484
		485	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		486	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		487
		488	$tick_start += $time; # do not account sync jobs to server load
329		489
330	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
331	} else {	491	} else {
332	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
333		493
…		…
353	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
354		514
355	$coro	515	$coro
356	}	516	}
357		517
358	sub write_runtime {	518	=item fork_call { }, $args
359	my $guard = cf::lock_acquire "write_runtime";
360		519
361	my $runtime = cf::localdir . "/runtime";	520	Executes the given code block with the given arguments in a seperate
		521	process, returning the results. Everything must be serialisable with
		522	Coro::Storable. May, of course, block. Note that the executed sub may
		523	never block itself or use any form of event handling.
362		524
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	525	=cut
364	or return;
365		526
366	my $value = $cf::RUNTIME + 90 + 10;	527	sub fork_call(&@) {
367	# 10 is the runtime save interval, for a monotonic clock	528	my ($cb, @args) = @_;
368	# 60 allows for the watchdog to kill the server.
369		529
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	530	# we seemingly have to make a local copy of the whole thing,
371	and return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
372		533
373	# always fsync - this file is important	534	my @res = Coro::Util::fork_eval {
374	aio_fsync $fh	535	reset_signals;
375	and return;	536	&$cb
		537	}, @args;
376		538
377	close $fh	539	wantarray ? @res : $res[-1]
378	or return;	540	}
379		541
380	aio_rename "$runtime~", $runtime	542	=item $value = cf::db_get $family => $key
381	and return;
382		543
		544	Returns a single value from the environment database.
		545
		546	=item cf::db_put $family => $key => $value
		547
		548	Stores the given C<$value> in the family. It can currently store binary
		549	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		550
		551	=item $db = cf::db_table "name"
		552
		553	Create and/or open a new database table. The string must not be "db" and must be unique
		554	within each server.
		555
		556	=cut
		557
		558	sub db_table($) {
		559	my ($name) = @_;
		560	my $db = BDB::db_create $DB_ENV;
		561
		562	eval {
		563	$db->set_flags (BDB::CHKSUM);
		564
		565	utf8::encode $name;
		566	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		567	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		568	cf::cleanup "db_open(db): $!" if $!;
		569	};
		570	cf::cleanup "db_open(db): $@" if $@;
		571
		572	$db
		573	}
		574
		575	our $DB;
		576
		577	sub db_init {
		578	cf::sync_job {
		579	$DB ||= db_table "db";
		580	};
		581	}
		582
		583	sub db_get($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
383	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		595	BDB::dbreq_pri 4;
		596	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		597	}
		598
		599	=item cf::cache $id => [$paths...], $processversion => $process
		600
		601	Generic caching function that returns the value of the resource $id,
		602	caching and regenerating as required.
		603
		604	This function can block.
		605
		606	=cut
		607
		608	sub cache {
		609	my ($id, $src, $processversion, $process) = @_;
		610
		611	my $meta =
		612	join "\x00",
		613	$processversion,
		614	map {
		615	aio_stat $_
		616	and Carp::croak "$_: $!";
		617
		618	($_, (stat _)[7,9])
		619	} @$src;
		620
		621	my $dbmeta = db_get cache => "$id/meta";
		622	if ($dbmeta ne $meta) {
		623	# changed, we may need to process
		624
		625	my @data;
		626	my $md5;
		627
		628	for (0 .. $#$src) {
		629	0 <= aio_load $src->[$_], $data[$_]
		630	or Carp::croak "$src->[$_]: $!";
		631	}
		632
		633	# if processing is expensive, check
		634	# checksum first
		635	if (1) {
		636	$md5 =
		637	join "\x00",
		638	$processversion,
		639	map {
		640	cf::cede_to_tick;
		641	($src->[$_], Digest::MD5::md5_hex $data[$_])
		642	} 0.. $#$src;
		643
		644
		645	my $dbmd5 = db_get cache => "$id/md5";
		646	if ($dbmd5 eq $md5) {
		647	db_put cache => "$id/meta", $meta;
		648
		649	return db_get cache => "$id/data";
		650	}
		651	}
		652
		653	my $t1 = Time::HiRes::time;
		654	my $data = $process->(\@data);
		655	my $t2 = Time::HiRes::time;
		656
		657	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		658
		659	db_put cache => "$id/data", $data;
		660	db_put cache => "$id/md5" , $md5;
		661	db_put cache => "$id/meta", $meta;
		662
		663	return $data;
		664	}
		665
		666	db_get cache => "$id/data"
		667	}
		668
		669	=item cf::datalog type => key => value, ...
		670
		671	Log a datalog packet of the given type with the given key-value pairs.
		672
		673	=cut
		674
		675	sub datalog($@) {
		676	my ($type, %kv) = @_;
		677	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384	}	678	}
385		679
386	=back	680	=back
387		681
388	=cut	682	=cut
…		…
395	attach callbacks/event handlers (a collection of which is called an "attachment")	689	attach callbacks/event handlers (a collection of which is called an "attachment")
396	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
397		691
398	In the following description, CLASS can be any of C<global>, C<object>	692	In the following description, CLASS can be any of C<global>, C<object>
399	C<player>, C<client> or C<map> (i.e. the attachable objects in	693	C<player>, C<client> or C<map> (i.e. the attachable objects in
400	crossfire+).	694	Deliantra).
401		695
402	=over 4	696	=over 4
403		697
404	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
405		699
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
569		863
570	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		868
575	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	870	my $pkg = shift @arg;
577		871
578	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
608	}	902	}
609		903
610	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
611	} else {	905	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	907	}
614		908
615	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
616	}	910	}
617		911
…		…
619	if (ref $_[0]) {	913	if (ref $_[0]) {
620	_object_attach @_;	914	_object_attach @_;
621	} else {	915	} else {
622	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
623	}	917	}
		918	_recalc_want;
624	};	919	};
625		920
626	# all those should be optimised	921	# all those should be optimised
627	sub cf::attachable::detach {	922	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
632	reattach ($obj);	927	reattach ($obj);
633	} else {	928	} else {
634	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
635	}	930	}
		931	_recalc_want;
636	};	932	};
637		933
638	sub cf::attachable::attached {	934	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
640		936
…		…
655	";	951	";
656	die if $@;	952	die if $@;
657	}	953	}
658		954
659	our $override;	955	our $override;
660	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	956	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661		957
662	sub override {	958	sub override {
663	$override = 1;	959	$override = 1;
664	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
665	}	961	}
666		962
667	sub do_invoke {	963	sub do_invoke {
668	my $event = shift;	964	my $event = shift;
669	my $callbacks = shift;	965	my $callbacks = shift;
670		966
671	@invoke_results = ();	967	@INVOKE_RESULTS = ();
672		968
673	local $override;	969	local $override;
674		970
675	for (@$callbacks) {	971	for (@$callbacks) {
676	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
685	}	981	}
686		982
687	0	983	0
688	}	984	}
689		985
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		987
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		989
694	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
695		991
696	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	992	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697	removed in future versions), and there is no public API to access override	993	removed in future versions), and there is no public API to access override
698	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		995
700	=back	996	=back
701		997
702	=cut	998	=cut
703		999
704	#############################################################################	1000	#############################################################################
705	# object support	1001	# object support
		1002
		1003	sub _object_equal($$);
		1004	sub _object_equal($$) {
		1005	my ($a, $b) = @_;
		1006
		1007	return 0 unless (ref $a) eq (ref $b);
		1008
		1009	if ("HASH" eq ref $a) {
		1010	my @ka = keys %$a;
		1011	my @kb = keys %$b;
		1012
		1013	return 0 if @ka != @kb;
		1014
		1015	for (0 .. $#ka) {
		1016	return 0 unless $ka[$_] eq $kb[$_];
		1017	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1018	}
		1019
		1020	} elsif ("ARRAY" eq ref $a) {
		1021
		1022	return 0 if @$a != @$b;
		1023
		1024	for (0 .. $#$a) {
		1025	return 0 unless _object_equal $a->[$_], $b->[$_];
		1026	}
		1027
		1028	} elsif ($a ne $b) {
		1029	return 0;
		1030	}
		1031
		1032	1
		1033	}
		1034
		1035	our $SLOW_MERGES;#d#
		1036	sub _can_merge {
		1037	my ($ob1, $ob2) = @_;
		1038
		1039	++$SLOW_MERGES;#d#
		1040
		1041	# we do the slow way here
		1042	return _object_equal $ob1, $ob2
		1043	}
706		1044
707	sub reattach {	1045	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1047	my ($obj) = @_;
710		1048
…		…
731	cf::attachable->attach (	1069	cf::attachable->attach (
732	prio => -1000000,	1070	prio => -1000000,
733	on_instantiate => sub {	1071	on_instantiate => sub {
734	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
735		1073
736	$data = from_json $data;	1074	$data = decode_json $data;
737		1075
738	for (@$data) {	1076	for (@$data) {
739	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
740		1078
741	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1095	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
759		1097
760	sync_job {	1098	sync_job {
761	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
764		1103
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1107	aio_fsync $fh if $cf::USE_FSYNC;
769	close $fh;	1108	close $fh;
770		1109
771	if (@$objs) {	1110	if (@$objs) {
772	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1111	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1115	aio_fsync $fh if $cf::USE_FSYNC;
777	close $fh;	1116	close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
779	}	1118	}
…		…
787	}	1126	}
788	} else {	1127	} else {
789	aio_unlink $filename;	1128	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
791	}	1130	}
792	}	1131	};
793	}	1132	}
794		1133
795	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
796	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
797		1136
…		…
809	or return;	1148	or return;
810		1149
811	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
813	or return;	1152	or return;
		1153
814	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
815	}	1156	}
816		1157
		1158	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
819	return ($data, $av);	1162	($data, $av)
820	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
821		1170
822	#############################################################################	1171	#############################################################################
823	# command handling &c	1172	# command handling &c
824		1173
825	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1188	}
840		1189
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1191
843	Register a callbackf ro execution when the client sends an extcmd packet.	1192	Register a callback for execution when the client sends an (synchronous)
		1193	extcmd packet. Ext commands will be processed in the order they are
		1194	received by the server, like other user commands. The first argument is
		1195	the logged-in player. Ext commands can only be processed after a player
		1196	has logged in successfully.
844		1197
845	If the callback returns something, it is sent back as if reply was being	1198	If the callback returns something, it is sent back as if reply was being
846	called.	1199	called.
847		1200
		1201	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1202
		1203	Register a callback for execution when the client sends an (asynchronous)
		1204	exticmd packet. Exti commands are processed by the server as soon as they
		1205	are received, i.e. out of order w.r.t. other commands. The first argument
		1206	is a client socket. Exti commands can be received anytime, even before
		1207	log-in.
		1208
		1209	If the callback returns something, it is sent back as if reply was being
		1210	called.
		1211
848	=cut	1212	=cut
849		1213
850	sub register_extcmd {	1214	sub register_extcmd {
851	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
852		1216
853	$EXTCMD{$name} = $cb;	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
854	}	1224	}
855		1225
856	cf::player->attach (	1226	cf::player->attach (
857	on_command => sub {	1227	on_command => sub {
858	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1237	cf::override;
868	},	1238	},
869	on_extcmd => sub {	1239	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
871		1241
872	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1243
874	if (ref $msg) {	1244	if (ref $msg) {
		1245	my ($type, $reply, @payload) =
		1246	"ARRAY" eq ref $msg
		1247	? @$msg
		1248	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1249
		1250	my @reply;
		1251
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
880	} else {	1259	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1261	}
883		1262
884	cf::override;	1263	cf::override;
885	},	1264	},
886	);	1265	);
887		1266
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1267	sub load_extensions {
		1268	cf::sync_job {
		1269	my %todo;
		1270
923	for my $ext (<$LIBDIR/*.ext>) {	1271	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1272	next unless -r $path;
925	eval {	1273
926	load_extension $ext;	1274	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1275	my $base = $1;
		1276	my $pkg = $1;
		1277	$pkg =~ s/[^[:word:]]/_/g;
		1278	$pkg = "ext::$pkg";
		1279
		1280	open my $fh, "<:utf8", $path
		1281	or die "$path: $!";
		1282
		1283	my $source = do { local $/; <$fh> };
		1284
		1285	my %ext = (
		1286	path => $path,
		1287	base => $base,
		1288	pkg => $pkg,
		1289	);
		1290
		1291	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1292	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1293
		1294	$ext{source} =
		1295	"package $pkg; use strict; use utf8;\n"
		1296	. "#line 1 \"$path\"\n{\n"
		1297	. $source
		1298	. "\n};\n1";
		1299
		1300	$todo{$base} = \%ext;
		1301	}
		1302
		1303	my %done;
		1304	while (%todo) {
		1305	my $progress;
		1306
		1307	while (my ($k, $v) = each %todo) {
		1308	for (split /,\s*/, $v->{meta}{depends}) {
		1309	goto skip
		1310	unless exists $done{$_};
		1311	}
		1312
		1313	warn "... loading '$k' into '$v->{pkg}'\n";
		1314
		1315	unless (eval $v->{source}) {
		1316	my $msg = $@ ? "$v->{path}: $@\n"
		1317	: "$v->{base}: extension inactive.\n";
		1318
		1319	if (exists $v->{meta}{mandatory}) {
		1320	warn $msg;
		1321	warn "mandatory extension failed to load, exiting.\n";
		1322	exit 1;
		1323	}
		1324
		1325	warn $msg;
		1326	}
		1327
		1328	$done{$k} = delete $todo{$k};
		1329	push @EXTS, $v->{pkg};
		1330	$progress = 1;
927	1	1331	}
928	} or warn "$ext not loaded: $@";	1332
		1333	skip:
		1334	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1335	unless $progress;
		1336	}
929	}	1337	};
930	}	1338	}
931		1339
932	#############################################################################	1340	#############################################################################
933		1341
		1342	=back
		1343
934	=head2 CORE EXTENSIONS	1344	=head2 CORE EXTENSIONS
935		1345
936	Functions and methods that extend core crossfire objects.	1346	Functions and methods that extend core crossfire objects.
937		1347
938	=cut	1348	=cut
…		…
943		1353
944	=head3 cf::player	1354	=head3 cf::player
945		1355
946	=over 4	1356	=over 4
947		1357
		1358	=item cf::player::num_playing
		1359
		1360	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1361
		1362	=cut
		1363
		1364	sub num_playing {
		1365	scalar grep
		1366	$_->ob->map
		1367	&& !$_->hidden
		1368	&& !$_->ob->flag (cf::FLAG_WIZ),
		1369	cf::player::list
		1370	}
		1371
948	=item cf::player::find $login	1372	=item cf::player::find $login
949		1373
950	Returns the given player object, loading it if necessary (might block).	1374	Returns the given player object, loading it if necessary (might block).
951		1375
952	=cut	1376	=cut
953		1377
954	sub playerdir($) {	1378	sub playerdir($) {
955	cf::localdir	1379	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1380	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1381	}
961		1382
962	sub path($) {	1383	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1384	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1385
965	(playerdir $login) . "/$login.pl"	1386	(playerdir $login) . "/playerdata"
966	}	1387	}
967		1388
968	sub find_active($) {	1389	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1390	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1391	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1404	my $login = $_[0];
984		1405
985	my $guard = cf::lock_acquire "user_find:$login";	1406	my $guard = cf::lock_acquire "user_find:$login";
986		1407
987	$cf::PLAYER{$_[0]} || do {	1408	$cf::PLAYER{$_[0]} || do {
988	my $pl = load_pl path $login	1409	# rename old playerfiles to new ones
		1410	#TODO: remove when no longer required
		1411	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1412	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1413	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1414	aio_unlink +(playerdir $login) . "/$login.pl";
		1415
		1416	my $f = new_from_file cf::object::thawer path $login
989	or return;	1417	or return;
		1418
		1419	my $pl = cf::player::load_pl $f
		1420	or return;
		1421	local $cf::PLAYER_LOADING{$login} = $pl;
		1422	$f->resolve_delayed_derefs;
990	$cf::PLAYER{$login} = $pl	1423	$cf::PLAYER{$login} = $pl
991	}	1424	}
992	}	1425	}
993	}	1426	}
994		1427
…		…
1004		1437
1005	aio_mkdir playerdir $pl, 0770;	1438	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1439	$pl->{last_save} = $cf::RUNTIME;
1007		1440
1008	$pl->save_pl ($path);	1441	$pl->save_pl ($path);
1009	Coro::cede;	1442	cf::cede_to_tick;
1010	}	1443	}
1011		1444
1012	sub new($) {	1445	sub new($) {
1013	my ($login) = @_;	1446	my ($login) = @_;
1014		1447
…		…
1020	$cf::PLAYER{$login} = $self;	1453	$cf::PLAYER{$login} = $self;
1021		1454
1022	$self	1455	$self
1023	}	1456	}
1024		1457
		1458	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1459
		1460	=cut
		1461
		1462	sub send_msg {
		1463	my $ns = shift->ns
		1464	or return;
		1465	$ns->send_msg (@_);
		1466	}
		1467
1025	=item $pl->quit_character	1468	=item $pl->quit_character
1026		1469
1027	Nukes the player without looking back. If logged in, the connection will	1470	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1471	be destroyed. May block for a long time.
1029		1472
1030	=cut	1473	=cut
1031		1474
1032	sub quit_character {	1475	sub quit_character {
1033	my ($pl) = @_;	1476	my ($pl) = @_;
		1477
		1478	my $name = $pl->ob->name;
1034		1479
1035	$pl->{deny_save} = 1;	1480	$pl->{deny_save} = 1;
1036	$pl->password ("*"); # this should lock out the player until we nuked the dir	1481	$pl->password ("*"); # this should lock out the player until we nuked the dir
1037		1482
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1483	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1488	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1489	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1490	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1491	delete $cf::PLAYER{$pl->ob->name};
1047	$pl->destroy;	1492	$pl->destroy;
		1493
		1494	my $prefix = qr<^~\Q$name\E/>;
		1495
		1496	# nuke player maps
		1497	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1498
1048	IO::AIO::aio_rmtree $temp;	1499	IO::AIO::aio_rmtree $temp;
		1500	}
		1501
		1502	=item $pl->kick
		1503
		1504	Kicks a player out of the game. This destroys the connection.
		1505
		1506	=cut
		1507
		1508	sub kick {
		1509	my ($pl, $kicker) = @_;
		1510
		1511	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1512	$pl->killer ("kicked");
		1513	$pl->ns->destroy;
1049	}	1514	}
1050		1515
1051	=item cf::player::list_logins	1516	=item cf::player::list_logins
1052		1517
1053	Returns am arrayref of all valid playernames in the system, can take a	1518	Returns am arrayref of all valid playernames in the system, can take a
1054	while and may block, so not sync_job-capable, ever.	1519	while and may block, so not sync_job-capable, ever.
1055		1520
1056	=cut	1521	=cut
1057		1522
1058	sub list_logins {	1523	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1524	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1525	or return [];
1061		1526
1062	my @logins;	1527	my @logins;
1063		1528
1064	for my $login (@$dirs) {	1529	for my $login (@$dirs) {
		1530	my $path = path $login;
		1531
		1532	# a .pst is a dead give-away for a valid player
		1533	unless (-e "$path.pst") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1534	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1535	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1536	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1537	}
1068		1538
1069	utf8::decode $login;	1539	utf8::decode $login;
1070	push @logins, $login;	1540	push @logins, $login;
1071	}	1541	}
1072		1542
…		…
1099	}	1569	}
1100		1570
1101	\@paths	1571	\@paths
1102	}	1572	}
1103		1573
		1574	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1575
		1576	Expand crossfire pod fragments into protocol xml.
		1577
		1578	=cut
		1579
		1580	use re 'eval';
		1581
		1582	my $group;
		1583	my $interior; $interior = qr{
		1584	# match a pod interior sequence sans C<< >>
		1585	(?:
		1586	\ (.*?)\ (?{ $group = $^N })
		1587	| < (??{$interior}) >
		1588	)
		1589	}x;
		1590
		1591	sub expand_cfpod {
		1592	my ($self, $pod) = @_;
		1593
		1594	my $xml;
		1595
		1596	while () {
		1597	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1598	$group = $1;
		1599
		1600	$group =~ s/&/&amp;/g;
		1601	$group =~ s/</&lt;/g;
		1602
		1603	$xml .= $group;
		1604	} elsif ($pod =~ m%\G
		1605	([BCGHITU])
		1606	<
		1607	(?:
		1608	([^<>]*) (?{ $group = $^N })
		1609	| < $interior >
		1610	)
		1611	>
		1612	%gcsx
		1613	) {
		1614	my ($code, $data) = ($1, $group);
		1615
		1616	if ($code eq "B") {
		1617	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1618	} elsif ($code eq "I") {
		1619	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1620	} elsif ($code eq "U") {
		1621	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1622	} elsif ($code eq "C") {
		1623	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1624	} elsif ($code eq "T") {
		1625	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1626	} elsif ($code eq "G") {
		1627	my ($male, $female) = split /\|/, $data;
		1628	$data = $self->gender ? $female : $male;
		1629	$xml .= expand_cfpod ($self, $data);
		1630	} elsif ($code eq "H") {
		1631	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1632	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1633	"")
		1634	[$self->{hintmode}];
		1635	} else {
		1636	$xml .= "error processing '$code($data)' directive";
		1637	}
		1638	} else {
		1639	if ($pod =~ /\G(.+)/) {
		1640	warn "parse error while expanding $pod (at $1)";
		1641	}
		1642	last;
		1643	}
		1644	}
		1645
		1646	for ($xml) {
		1647	# create single paragraphs (very hackish)
		1648	s/(?<=\S)\n(?=\w)/ /g;
		1649
		1650	# compress some whitespace
		1651	s/\s+\n/\n/g; # ws line-ends
		1652	s/\n\n+/\n/g; # double lines
		1653	s/^\n+//; # beginning lines
		1654	s/\n+$//; # ending lines
		1655	}
		1656
		1657	$xml
		1658	}
		1659
		1660	no re 'eval';
		1661
		1662	sub hintmode {
		1663	$_[0]{hintmode} = $_[1] if @_ > 1;
		1664	$_[0]{hintmode}
		1665	}
		1666
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1667	=item $player->ext_reply ($msgid, @msg)
1105		1668
1106	Sends an ext reply to the player.	1669	Sends an ext reply to the player.
1107		1670
1108	=cut	1671	=cut
1109		1672
1110	sub ext_reply($$$%) {	1673	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1674	my ($self, $id, @msg) = @_;
1112		1675
1113	$msg{msgid} = $id;	1676	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1677	}
1117		1678
1118	package cf;	1679	=item $player->ext_msg ($type, @msg)
		1680
		1681	Sends an ext event to the client.
		1682
		1683	=cut
		1684
		1685	sub ext_msg($$@) {
		1686	my ($self, $type, @msg) = @_;
		1687
		1688	$self->ns->ext_msg ($type, @msg);
		1689	}
		1690
		1691	=head3 cf::region
		1692
		1693	=over 4
		1694
		1695	=cut
		1696
		1697	package cf::region;
		1698
		1699	=item cf::region::find_by_path $path
		1700
		1701	Tries to decuce the likely region for a map knowing only its path.
		1702
		1703	=cut
		1704
		1705	sub find_by_path($) {
		1706	my ($path) = @_;
		1707
		1708	my ($match, $specificity);
		1709
		1710	for my $region (list) {
		1711	if ($region->{match} && $path =~ $region->{match}) {
		1712	($match, $specificity) = ($region, $region->specificity)
		1713	if $region->specificity > $specificity;
		1714	}
		1715	}
		1716
		1717	$match
		1718	}
1119		1719
1120	=back	1720	=back
1121
1122		1721
1123	=head3 cf::map	1722	=head3 cf::map
1124		1723
1125	=over 4	1724	=over 4
1126		1725
…		…
1181	my ($self, $merge) = @_;	1780	my ($self, $merge) = @_;
1182		1781
1183	# we have to keep some variables in memory intact	1782	# we have to keep some variables in memory intact
1184	local $self->{path};	1783	local $self->{path};
1185	local $self->{load_path};	1784	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1785
1189	$self->SUPER::thawer_merge ($merge);	1786	$self->SUPER::thawer_merge ($merge);
1190	}	1787	}
1191		1788
1192	sub normalise {	1789	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1836	$self->init; # pass $1 etc.
1240	return $self;	1837	return $self;
1241	}	1838	}
1242	}	1839	}
1243		1840
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1841	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1842	()
1246	}	1843	}
1247		1844
1248	sub init {	1845	sub init {
1249	my ($self) = @_;	1846	my ($self) = @_;
…		…
1264		1861
1265	# the original (read-only) location	1862	# the original (read-only) location
1266	sub load_path {	1863	sub load_path {
1267	my ($self) = @_;	1864	my ($self) = @_;
1268		1865
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1866	"$MAPDIR/$self->{path}.map"
1270	}	1867	}
1271		1868
1272	# the temporary/swap location	1869	# the temporary/swap location
1273	sub save_path {	1870	sub save_path {
1274	my ($self) = @_;	1871	my ($self) = @_;
1275		1872
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1873	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1874	"$TMPDIR/$path.map"
1278	}	1875	}
1279		1876
1280	# the unique path, undef == no special unique path	1877	# the unique path, undef == no special unique path
1281	sub uniq_path {	1878	sub uniq_path {
1282	my ($self) = @_;	1879	my ($self) = @_;
1283		1880
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1881	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1882	"$UNIQUEDIR/$path"
1286	}	1883	}
1287		1884
1288	# and all this just because we cannot iterate over	1885	# and all this just because we cannot iterate over
1289	# all maps in C++...	1886	# all maps in C++...
1290	sub change_all_map_light {	1887	sub change_all_map_light {
…		…
1292		1889
1293	$_->change_map_light ($change)	1890	$_->change_map_light ($change)
1294	for grep $_->outdoor, values %cf::MAP;	1891	for grep $_->outdoor, values %cf::MAP;
1295	}	1892	}
1296		1893
		1894	sub decay_objects {
		1895	my ($self) = @_;
		1896
		1897	return if $self->{deny_reset};
		1898
		1899	$self->do_decay_objects;
		1900	}
		1901
1297	sub unlink_save {	1902	sub unlink_save {
1298	my ($self) = @_;	1903	my ($self) = @_;
1299		1904
1300	utf8::encode (my $save = $self->save_path);	1905	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1304		1909
1305	sub load_header_from($) {	1910	sub load_header_from($) {
1306	my ($self, $path) = @_;	1911	my ($self, $path) = @_;
1307		1912
1308	utf8::encode $path;	1913	utf8::encode $path;
1309	#aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1310	# or return;
1311
1312	$self->_load_header ($path)
1313	or return;	1915	or return;
		1916
		1917	$self->_load_header ($f)
		1918	or return;
		1919
		1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
1314		1922
1315	$self->{load_path} = $path;	1923	$self->{load_path} = $path;
1316		1924
1317	1	1925	1
1318	}	1926	}
…		…
1357	$self->load_header_orig	1965	$self->load_header_orig
1358	or return;	1966	or return;
1359	$self->prepare_orig;	1967	$self->prepare_orig;
1360	}	1968	}
1361		1969
		1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
		1972
		1973	$self->default_region (cf::region::find_by_path $self->{path})
		1974	unless $self->default_region;
		1975
1362	1	1976	1
1363	}	1977	}
1364		1978
1365	sub find;	1979	sub find;
1366	sub find {	1980	sub find {
1367	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1368		1982
1369	$path = normalise $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1370		1984
		1985	cf::lock_wait "map_data:$path";#d#remove
1371	cf::lock_wait "map_find:$path";	1986	cf::lock_wait "map_find:$path";
1372		1987
1373	$cf::MAP{$path} || do {	1988	$cf::MAP{$path} || do {
1374	my $guard = cf::lock_acquire "map_find:$path";	1989	my $guard1 = cf::lock_acquire "map_find:$path";
		1990	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1991
1375	my $map = new_from_path cf::map $path	1992	my $map = new_from_path cf::map $path
1376	or return;	1993	or return;
1377		1994
1378	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1379		1996
1380	$map->load_header	1997	$map->load_header
1381	or return;	1998	or return;
1382		1999
1383	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1384	# doing this can freeze the server in a sync job, obviously	2001	# doing this can freeze the server in a sync job, obviously
1385	#$cf::WAIT_FOR_TICK->wait;	2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard1;
		2004	undef $guard2;
1386	$map->reset;	2005	$map->reset;
1387	undef $guard;
1388	return find $path;	2006	return find $path;
1389	}	2007	}
1390		2008
1391	$cf::MAP{$path} = $map	2009	$cf::MAP{$path} = $map
1392	}	2010	}
…		…
1399	my ($self) = @_;	2017	my ($self) = @_;
1400		2018
1401	local $self->{deny_reset} = 1; # loading can take a long time	2019	local $self->{deny_reset} = 1; # loading can take a long time
1402		2020
1403	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1404	my $guard = cf::lock_acquire "map_load:$path";	2024	my $guard = cf::lock_acquire "map_data:$path";
1405		2025
		2026	return unless $self->valid;
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1407		2028
1408	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1409		2030
1410	$self->alloc;	2031	$self->alloc;
1411		2032
1412	$self->pre_load;	2033	$self->pre_load;
		2034	cf::cede_to_tick;
1413		2035
1414	$self->_load_objects ($self->{load_path}, 1)	2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1415	or return;	2039	or return;
1416		2040
1417	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1418	if delete $self->{load_original};	2042	if delete $self->{load_original};
1419		2043
1420	if (my $uniq = $self->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1421	utf8::encode $uniq;	2045	utf8::encode $uniq;
1422	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1423	$self->clear_unique_items;	2048	$self->clear_unique_items;
1424	$self->_load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1425	}	2052	}
1426	}	2053	}
1427		2054
1428	Coro::cede;	2055	$f->resolve_delayed_derefs;
1429		2056
		2057	cf::cede_to_tick;
1430	# now do the right thing for maps	2058	# now do the right thing for maps
1431	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1432
1433	unless ($self->{deny_activate}) {
1434	$self->decay_objects;
1435	$self->fix_auto_apply;
1436	$self->update_buttons;
1437	Coro::cede;
1438	$self->set_darkness_map;
1439	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1440	unless $self->difficulty;	2061	unless $self->difficulty;
1441	Coro::cede;	2062	cf::cede_to_tick;
		2063
		2064	unless ($self->{deny_activate}) {
		2065	$self->decay_objects;
		2066	$self->fix_auto_apply;
		2067	$self->update_buttons;
		2068	cf::cede_to_tick;
		2069	$self->set_darkness_map;
		2070	cf::cede_to_tick;
1442	$self->activate;	2071	$self->activate;
		2072	}
		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
		2077	$self->in_memory (cf::MAP_IN_MEMORY);
1443	}	2078	}
1444		2079
1445	$self->post_load;	2080	$self->post_load;
1446
1447	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	2081	}
1449		2082
1450	sub customise_for {	2083	sub customise_for {
1451	my ($self, $ob) = @_;	2084	my ($self, $ob) = @_;
1452		2085
1453	return find "~" . $ob->name . "/" . $self->{path}	2086	return find "~" . $ob->name . "/" . $self->{path}
1454	if $self->per_player;	2087	if $self->per_player;
1455		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
1456	$self	2092	$self
1457	}	2093	}
1458		2094
1459	# find and load all maps in the 3x3 area around a map	2095	# find and load all maps in the 3x3 area around a map
1460	sub load_diag {	2096	sub load_neighbours {
1461	my ($map) = @_;	2097	my ($map) = @_;
1462		2098
1463	my @diag; # diagonal neighbours	2099	my @neigh; # diagonal neighbours
1464		2100
1465	for (0 .. 3) {	2101	for (0 .. 3) {
1466	my $neigh = $map->tile_path ($_)	2102	my $neigh = $map->tile_path ($_)
1467	or next;	2103	or next;
1468	$neigh = find $neigh, $map	2104	$neigh = find $neigh, $map
1469	or next;	2105	or next;
1470	$neigh->load;	2106	$neigh->load;
1471		2107
		2108	push @neigh,
1472	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1473	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1474	}	2111	}
1475		2112
1476	for (@diag) {	2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
1477	my $neigh = find @$_	2115	my $neigh = find $path, $origin
1478	or next;	2116	or next;
1479	$neigh->load;	2117	$neigh->load;
1480	}	2118	}
1481	}	2119	}
1482		2120
…		…
1487	}	2125	}
1488		2126
1489	sub do_load_sync {	2127	sub do_load_sync {
1490	my ($map) = @_;	2128	my ($map) = @_;
1491		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1492	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
1493	}	2134	}
1494		2135
1495	our %MAP_PREFETCH;	2136	our %MAP_PREFETCH;
1496	our $MAP_PREFETCHER = undef;	2137	our $MAP_PREFETCHER = undef;
1497		2138
1498	sub find_async {	2139	sub find_async {
1499	my ($path, $origin) = @_;	2140	my ($path, $origin, $load) = @_;
1500		2141
1501	$path = normalise $path, $origin && $origin->{path};	2142	$path = normalise $path, $origin && $origin->{path};
1502		2143
1503	if (my $map = $cf::MAP{$path}) {	2144	if (my $map = $cf::MAP{$path}) {
1504	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2145	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1505	}	2146	}
1506		2147
1507	undef $MAP_PREFETCH{$path};	2148	$MAP_PREFETCH{$path} |= $load;
		2149
1508	$MAP_PREFETCHER ||= cf::async {	2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
1509	while (%MAP_PREFETCH) {	2153	while (%MAP_PREFETCH) {
1510	for my $path (keys %MAP_PREFETCH) {	2154	while (my ($k, $v) = each %MAP_PREFETCH) {
1511	my $map = find $path	2155	if (my $map = find $k) {
1512	or next;
1513	$map->load;	2156	$map->load if $v;
		2157	}
1514		2158
1515	delete $MAP_PREFETCH{$path};	2159	delete $MAP_PREFETCH{$k};
1516	}	2160	}
1517	}	2161	}
1518	undef $MAP_PREFETCHER;	2162	undef $MAP_PREFETCHER;
1519	};	2163	};
1520	$MAP_PREFETCHER->prio (6);	2164	$MAP_PREFETCHER->prio (6);
…		…
1523	}	2167	}
1524		2168
1525	sub save {	2169	sub save {
1526	my ($self) = @_;	2170	my ($self) = @_;
1527		2171
1528	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1529		2173
1530	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1531		2175
1532	return unless $self->dirty;	2176	return unless $self->dirty;
1533		2177
…		…
1539	return if $self->{deny_save};	2183	return if $self->{deny_save};
1540		2184
1541	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1542		2186
1543	cf::async {	2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
1544	$_->contr->save for $self->players;	2189	$_->contr->save for $self->players;
1545	};	2190	};
1546		2191
1547	if ($uniq) {	2192	if ($uniq) {
1548	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1556	my ($self) = @_;	2201	my ($self) = @_;
1557		2202
1558	# save first because save cedes	2203	# save first because save cedes
1559	$self->save;	2204	$self->save;
1560		2205
1561	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1562		2207
1563	return if $self->players;	2208	return if $self->players;
1564	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_IN_MEMORY;
1565	return if $self->{deny_save};	2210	return if $self->{deny_save};
1566		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1567	$self->clear;	2216	$self->clear;
1568	$self->in_memory (cf::MAP_SWAPPED);
1569	}	2217	}
1570		2218
1571	sub reset_at {	2219	sub reset_at {
1572	my ($self) = @_;	2220	my ($self) = @_;
1573		2221
1574	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1575	return 1e99 if $self->isa ("ext::map_per_player");#d#
1576	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1577		2224
1578	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1579	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1580		2227
…		…
1591	my ($self) = @_;	2238	my ($self) = @_;
1592		2239
1593	my $lock = cf::lock_acquire "map_data:$self->{path}";	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1594		2241
1595	return if $self->players;	2242	return if $self->players;
1596	return if $self->isa ("ext::map_per_player");#d#
1597		2243
1598	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path;
1599		2245
1600	$self->in_memory (cf::MAP_SWAPPED);	2246	$self->in_memory (cf::MAP_SWAPPED);
1601		2247
1602	# need to save uniques path	2248	# need to save uniques path
1603	unless ($self->{deny_save}) {	2249	unless ($self->{deny_save}) {
…		…
1607	if $uniq;	2253	if $uniq;
1608	}	2254	}
1609		2255
1610	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1611		2257
		2258	$self->deactivate;
		2259	$_->clear_links_to ($self) for values %cf::MAP;
1612	$self->clear;	2260	$self->clear;
1613
1614	$_->clear_links_to ($self) for values %cf::MAP;
1615		2261
1616	$self->unlink_save;	2262	$self->unlink_save;
1617	$self->destroy;	2263	$self->destroy;
1618	}	2264	}
1619		2265
1620	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1621		2267
1622	sub nuke {	2268	sub nuke {
1623	my ($self) = @_;	2269	my ($self) = @_;
1624		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
1625	delete $cf::MAP{$self->path};	2274	delete $cf::MAP{$self->path};
1626		2275
1627	$self->unlink_save;	2276	$self->unlink_save;
1628		2277
1629	bless $self, "cf::map";	2278	bless $self, "cf::map";
1630	delete $self->{deny_reset};	2279	delete $self->{deny_reset};
1631	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1632	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1633	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1634		2283
1635	$cf::MAP{$self->path} = $self;	2284	$cf::MAP{$self->path} = $self;
		2285	}
1636		2286
1637	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
		2288	}
		2289
		2290	=item $maps = cf::map::tmp_maps
		2291
		2292	Returns an arrayref with all map paths of currently instantiated and saved
		2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
		2298	[
		2299	map {
		2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
		2306	}
		2307
		2308	=item $maps = cf::map::random_maps
		2309
		2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
		2312
		2313	=cut
		2314
		2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
1638	}	2324	}
1639		2325
1640	=item cf::map::unique_maps	2326	=item cf::map::unique_maps
1641		2327
1642	Returns an arrayref of paths of all shared maps that have	2328	Returns an arrayref of paths of all shared maps that have
1643	instantiated unique items. May block.	2329	instantiated unique items. May block.
1644		2330
1645	=cut	2331	=cut
1646		2332
1647	sub unique_maps() {	2333	sub unique_maps() {
1648	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2334	[
1649	or return;	2335	map {
1650
1651	my @paths;
1652
1653	for (@$files) {
1654	utf8::decode $_;	2336	utf8::decode $_;
1655	next if /\.pst$/;	2337	/\.map$/
1656	next unless /^$PATH_SEP/o;	2338	? normalise $_
1657		2339	: ()
1658	push @paths, cf::map::normalise $_;	2340	} @{ aio_readdir $UNIQUEDIR or [] }
1659	}	2341	]
1660
1661	\@paths
1662	}	2342	}
1663		2343
1664	package cf;	2344	package cf;
1665		2345
1666	=back	2346	=back
…		…
1684	map { $_, inv_recursive_ $_->inv } @_	2364	map { $_, inv_recursive_ $_->inv } @_
1685	}	2365	}
1686		2366
1687	sub inv_recursive {	2367	sub inv_recursive {
1688	inv_recursive_ inv $_[0]	2368	inv_recursive_ inv $_[0]
		2369	}
		2370
		2371	=item $ref = $ob->ref
		2372
		2373	creates and returns a persistent reference to an objetc that can be stored as a string.
		2374
		2375	=item $ob = cf::object::deref ($refstring)
		2376
		2377	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2378	even if the object actually exists. May block.
		2379
		2380	=cut
		2381
		2382	sub deref {
		2383	my ($ref) = @_;
		2384
		2385	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2386	my ($uuid, $name) = ($1, $2);
		2387	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2388	or return;
		2389	$pl->ob->uuid eq $uuid
		2390	or return;
		2391
		2392	$pl->ob
		2393	} else {
		2394	warn "$ref: cannot resolve object reference\n";
		2395	undef
		2396	}
1689	}	2397	}
1690		2398
1691	package cf;	2399	package cf;
1692		2400
1693	=back	2401	=back
…		…
1712		2420
1713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2421	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1714		2422
1715	if ($self->{record_replies}) {	2423	if ($self->{record_replies}) {
1716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2424	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2425
1717	} else {	2426	} else {
		2427	my $pl = $self->contr;
		2428
		2429	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2430	my $dialog = $pl->{npc_dialog};
		2431	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2432
		2433	} else {
1718	$msg = $npc->name . " says: $msg" if $npc;	2434	$msg = $npc->name . " says: $msg" if $npc;
1719	$self->message ($msg, $flags);	2435	$self->message ($msg, $flags);
		2436	}
1720	}	2437	}
		2438	}
		2439
		2440	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2441
		2442	=cut
		2443
		2444	sub cf::object::send_msg {
		2445	my $pl = shift->contr
		2446	or return;
		2447	$pl->send_msg (@_);
1721	}	2448	}
1722		2449
1723	=item $player_object->may ("access")	2450	=item $player_object->may ("access")
1724		2451
1725	Returns wether the given player is authorized to access resource "access"	2452	Returns wether the given player is authorized to access resource "access"
…		…
1772	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1773		2500
1774	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1775		2502
1776	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1777	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1778		2505
1779	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1780	}	2507	}
1781		2508
1782	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1783	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1784		2513
1785	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1786		2515
1787	unless ($map) {	2516	unless ($map) {
1788	# restore original map position	2517	# restore original map position
…		…
1802	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1803	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1804	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1805		2534
1806	$map->load;	2535	$map->load;
1807	$map->load_diag;	2536	$map->load_neighbours;
1808		2537
1809	return unless $self->contr->active;	2538	return unless $self->contr->active;
1810	$self->activate_recursive;	2539	$self->activate_recursive;
1811		2540
1812	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2541	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2542	$self->enter_map ($map, $x, $y);
1814	}	2543	}
1815		2544
1816	cf::player->attach (	2545	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2546
1820	# abort map switching before logout	2547	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2548	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2549	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2550	the new (success) or old (failed) map position. In either case, $done will
1824	};	2551	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2552
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	$pl->ob->reply (undef,
1836	"There was an internal problem at your last logout, "
1837	. "the server will try to bring you to your intended destination in a second.",
1838	cf::NDI_RED);
1839	# we need this sleep as the login has a concurrent enter_exit running
1840	# and this sleep increases chances of the player not ending up in scorn
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2553	=cut
		2554
		2555	our $GOTOGEN;
1851		2556
1852	sub cf::object::player::goto {	2557	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2558	my ($self, $path, $x, $y, $check, $done) = @_;
		2559
		2560	# do generation counting so two concurrent goto's will be executed in-order
		2561	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2562
1855	$self->enter_link;	2563	$self->enter_link;
1856		2564
1857	(async {	2565	(async {
		2566	$Coro::current->{desc} = "player::goto $path $x $y";
		2567
		2568	# *tag paths override both path and x|y
		2569	if ($path =~ /^\*(.*)$/) {
		2570	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2571	my $ob = $obs[rand @obs];
		2572
		2573	# see if we actually can go there
		2574	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2575	$ob = $obs[rand @obs];
		2576	} else {
		2577	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2578	}
		2579	# else put us there anyways for now #d#
		2580
		2581	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2582	} else {
		2583	($path, $x, $y) = (undef, undef, undef);
		2584	}
		2585	}
		2586
1858	my $map = eval {	2587	my $map = eval {
1859	my $map = cf::map::find $path;	2588	my $map = defined $path ? cf::map::find $path : undef;
		2589
		2590	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2591	$map = $map->customise_for ($self);
		2592	$map = $check->($map) if $check && $map;
		2593	} else {
		2594	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	}
		2596
1861	$map	2597	$map
		2598	};
		2599
		2600	if ($@) {
		2601	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2602	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2603	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2604
		2605	if ($gen == $self->{_goto_generation}) {
		2606	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2607	$self->leave_link ($map, $x, $y);
		2608	}
		2609
		2610	$done->() if $done;
1866	})->prio (1);	2611	})->prio (1);
1867	}	2612	}
1868		2613
1869	=item $player_object->enter_exit ($exit_object)	2614	=item $player_object->enter_exit ($exit_object)
1870		2615
…		…
1907	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
1908	}	2653	}
1909		2654
1910	$rmp->{random_seed} ||= $exit->random_seed;	2655	$rmp->{random_seed} ||= $exit->random_seed;
1911		2656
1912	my $data = cf::to_json $rmp;	2657	my $data = cf::encode_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2658	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2659	my $meta = "$RANDOMDIR/$md5.meta";
1915		2660
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2661	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2662	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2663	undef $fh;
1919	aio_rename "$meta~", $meta;	2664	aio_rename "$meta~", $meta;
…		…
1928		2673
1929	return unless $self->type == cf::PLAYER;	2674	return unless $self->type == cf::PLAYER;
1930		2675
1931	if ($exit->slaying eq "/!") {	2676	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2677	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2678	# the problem is that $exit might not survive long enough
		2679	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2680	cf::sync_job { prepare_random_map $exit };
1934	}	2681	}
1935		2682
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2683	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2684	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;	2685	my $sp = $exit->stats->sp;
1939		2686
1940	$self->enter_link;	2687	$self->enter_link;
1941		2688
		2689	# if exit is damned, update players death & WoR home-position
		2690	$self->contr->savebed ($slaying, $hp, $sp)
		2691	if $exit->flag (FLAG_DAMNED);
		2692
1942	(async {	2693	(async {
		2694	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2695
1943	$self->deactivate_recursive; # just to be sure	2696	$self->deactivate_recursive; # just to be sure
1944	unless (eval {	2697	unless (eval {
1945	$self->goto ($slaying, $hp, $sp);	2698	$self->goto ($slaying, $hp, $sp);
1946		2699
1947	1;	2700	1;
1948	}) {	2701	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2703	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2704	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2706
1954	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2708	$self->leave_link;
1956	}	2709	}
1957	})->prio (1);	2710	})->prio (1);
…		…
1970		2723
1971	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1973		2726
1974	utf8::encode $text;	2727	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2729	}
1977		2730
		2731	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2732
		2733	Send a drawinfo or msg packet to the client, formatting the msg for the
		2734	client if neccessary. C<$type> should be a string identifying the type of
		2735	the message, with C<log> being the default. If C<$color> is negative, suppress
		2736	the message unless the client supports the msg packet.
		2737
		2738	=cut
		2739
		2740	# non-persistent channels (usually the info channel)
		2741	our %CHANNEL = (
		2742	"c/identify" => {
		2743	id => "infobox",
		2744	title => "Identify",
		2745	reply => undef,
		2746	tooltip => "Items recently identified",
		2747	},
		2748	"c/examine" => {
		2749	id => "infobox",
		2750	title => "Examine",
		2751	reply => undef,
		2752	tooltip => "Signs and other items you examined",
		2753	},
		2754	"c/book" => {
		2755	id => "infobox",
		2756	title => "Book",
		2757	reply => undef,
		2758	tooltip => "The contents of a note or book",
		2759	},
		2760	"c/lookat" => {
		2761	id => "infobox",
		2762	title => "Look",
		2763	reply => undef,
		2764	tooltip => "What you saw there",
		2765	},
		2766	"c/who" => {
		2767	id => "infobox",
		2768	title => "Players",
		2769	reply => undef,
		2770	tooltip => "Shows players who are currently online",
		2771	},
		2772	"c/body" => {
		2773	id => "infobox",
		2774	title => "Body Parts",
		2775	reply => undef,
		2776	tooltip => "Shows which body parts you posess and are available",
		2777	},
		2778	"c/uptime" => {
		2779	id => "infobox",
		2780	title => "Uptime",
		2781	reply => undef,
		2782	tooltip => "How long the server has been running since last restart",
		2783	},
		2784	"c/mapinfo" => {
		2785	id => "infobox",
		2786	title => "Map Info",
		2787	reply => undef,
		2788	tooltip => "Information related to the maps",
		2789	},
		2790	);
		2791
		2792	sub cf::client::send_msg {
		2793	my ($self, $channel, $msg, $color, @extra) = @_;
		2794
		2795	$msg = $self->pl->expand_cfpod ($msg);
		2796
		2797	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2798
		2799	# check predefined channels, for the benefit of C
		2800	if ($CHANNEL{$channel}) {
		2801	$channel = $CHANNEL{$channel};
		2802
		2803	$self->ext_msg (channel_info => $channel)
		2804	if $self->can_msg;
		2805
		2806	$channel = $channel->{id};
		2807
		2808	} elsif (ref $channel) {
		2809	# send meta info to client, if not yet sent
		2810	unless (exists $self->{channel}{$channel->{id}}) {
		2811	$self->{channel}{$channel->{id}} = $channel;
		2812	$self->ext_msg (channel_info => $channel)
		2813	if $self->can_msg;
		2814	}
		2815
		2816	$channel = $channel->{id};
		2817	}
		2818
		2819	return unless @extra || length $msg;
		2820
		2821	if ($self->can_msg) {
		2822	# default colour, mask it out
		2823	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2824	if $color & cf::NDI_DEF;
		2825
		2826	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2827	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2828	} else {
		2829	if ($color >= 0) {
		2830	# replace some tags by gcfclient-compatible ones
		2831	for ($msg) {
		2832	1 while
		2833	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2834	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2835	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2836	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2837	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2838	}
		2839
		2840	$color &= cf::NDI_COLOR_MASK;
		2841
		2842	utf8::encode $msg;
		2843
		2844	if (0 && $msg =~ /\[/) {
		2845	# COMMAND/INFO
		2846	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2847	} else {
		2848	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2849	$self->send_packet ("drawinfo $color $msg")
		2850	}
		2851	}
		2852	}
		2853	}
		2854
		2855	=item $client->ext_msg ($type, @msg)
		2856
		2857	Sends an ext event to the client.
		2858
		2859	=cut
		2860
		2861	sub cf::client::ext_msg($$@) {
		2862	my ($self, $type, @msg) = @_;
		2863
		2864	if ($self->extcmd == 2) {
		2865	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2866	} elsif ($self->extcmd == 1) { # TODO: remove
		2867	push @msg, msgtype => "event_$type";
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2869	}
		2870	}
		2871
		2872	=item $client->ext_reply ($msgid, @msg)
		2873
		2874	Sends an ext reply to the client.
		2875
		2876	=cut
		2877
		2878	sub cf::client::ext_reply($$@) {
		2879	my ($self, $id, @msg) = @_;
		2880
		2881	if ($self->extcmd == 2) {
		2882	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2883	} elsif ($self->extcmd == 1) {
		2884	#TODO: version 1, remove
		2885	unshift @msg, msgtype => "reply", msgid => $id;
		2886	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2887	}
		2888	}
1978		2889
1979	=item $success = $client->query ($flags, "text", \&cb)	2890	=item $success = $client->query ($flags, "text", \&cb)
1980		2891
1981	Queues a query to the client, calling the given callback with	2892	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2893	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2894	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2895
1985	Queries can fail, so check the return code. Or don't, as queries will become	2896	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2897	become reliable at some point in the future.
1987		2898
1988	=cut	2899	=cut
1989		2900
1990	sub cf::client::query {	2901	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2902	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2910	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2911	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2912
2002	$self->send_packet ($self->{query_queue}[0][0])	2913	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2914	if @{ $self->{query_queue} } == 1;
		2915
		2916	1
2004	}	2917	}
2005		2918
2006	cf::client->attach (	2919	cf::client->attach (
		2920	on_connect => sub {
		2921	my ($ns) = @_;
		2922
		2923	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2924	},
2007	on_reply => sub {	2925	on_reply => sub {
2008	my ($ns, $msg) = @_;	2926	my ($ns, $msg) = @_;
2009		2927
2010	# this weird shuffling is so that direct followup queries	2928	# this weird shuffling is so that direct followup queries
2011	# get handled first	2929	# get handled first
…		…
2023	} else {	2941	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2942	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2943	}
2026	}	2944	}
2027	},	2945	},
		2946	on_exticmd => sub {
		2947	my ($ns, $buf) = @_;
		2948
		2949	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2950
		2951	if (ref $msg) {
		2952	my ($type, $reply, @payload) =
		2953	"ARRAY" eq ref $msg
		2954	? @$msg
		2955	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2956
		2957	my @reply;
		2958
		2959	if (my $cb = $EXTICMD{$type}) {
		2960	@reply = $cb->($ns, @payload);
		2961	}
		2962
		2963	$ns->ext_reply ($reply, @reply)
		2964	if $reply;
		2965
		2966	} else {
		2967	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2968	}
		2969
		2970	cf::override;
		2971	},
2028	);	2972	);
2029		2973
2030	=item $client->async (\&cb)	2974	=item $client->async (\&cb)
2031		2975
2032	Create a new coroutine, running the specified callback. The coroutine will	2976	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3017	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3018	our $safe_hole = new Safe::Hole;
2075		3019
2076	$SIG{FPE} = 'IGNORE';	3020	$SIG{FPE} = 'IGNORE';
2077		3021
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3022	$safe->permit_only (Opcode::opset qw(
		3023	:base_core :base_mem :base_orig :base_math
		3024	grepstart grepwhile mapstart mapwhile
		3025	sort time
		3026	));
2079		3027
2080	# here we export the classes and methods available to script code	3028	# here we export the classes and methods available to script code
2081		3029
2082	=pod	3030	=pod
2083		3031
2084	The following fucntions and emthods are available within a safe environment:	3032	The following functions and methods are available within a safe environment:
2085		3033
2086	cf::object contr pay_amount pay_player map	3034	cf::object
		3035	contr pay_amount pay_player map x y force_find force_add destroy
		3036	insert remove name archname title slaying race decrease_ob_nr
		3037
2087	cf::object::player player	3038	cf::object::player
2088	cf::player peaceful	3039	player
2089	cf::map trigger	3040
		3041	cf::player
		3042	peaceful
		3043
		3044	cf::map
		3045	trigger
2090		3046
2091	=cut	3047	=cut
2092		3048
2093	for (	3049	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3050	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3051	insert remove inv name archname title slaying race
		3052	decrease_ob_nr destroy)],
2095	["cf::object::player" => qw(player)],	3053	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3054	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	3055	["cf::map" => qw(trigger)],
2098	) {	3056	) {
2099	no strict 'refs';	3057	no strict 'refs';
…		…
2170	=back	3128	=back
2171		3129
2172	=cut	3130	=cut
2173		3131
2174	#############################################################################	3132	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family.
2194
2195	=cut
2196
2197	our $DB;
2198
2199	sub db_init {
2200	unless ($DB) {
2201	$DB = BDB::db_create $DB_ENV;
2202
2203	cf::sync_job {
2204	eval {
2205	$DB->set_flags (BDB::CHKSUM);
2206
2207	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2208	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2209	cf::cleanup "db_open(db): $!" if $!;
2210	};
2211	cf::cleanup "db_open(db): $@" if $@;
2212	};
2213
2214	my $path = cf::localdir . "/database.pst";
2215	if (stat $path) {
2216	cf::sync_job {
2217	my $pst = Storable::retrieve $path;
2218
2219	cf::db_put (board => data => $pst->{board});
2220	cf::db_put (guildrules => data => $pst->{guildrules});
2221	cf::db_put (rent => balance => $pst->{rent}{balance});
2222	BDB::db_env_txn_checkpoint $DB_ENV;
2223
2224	unlink $path;
2225	};
2226	}
2227	}
2228	}
2229
2230	sub db_get($$) {
2231	my $key = "$_[0]/$_[1]";
2232
2233	cf::sync_job {
2234	BDB::db_get $DB, undef, $key, my $data;
2235
2236	$! ? ()
2237	: Compress::LZF::sthaw $data
2238	}
2239	}
2240
2241	sub db_put($$$) {
2242	BDB::dbreq_pri 4;
2243	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2244	}
2245
2246	#############################################################################
2247	# the server's init and main functions	3133	# the server's init and main functions
2248		3134
2249	sub init_resources {	3135	sub load_facedata($) {
2250	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3136	my ($path) = @_;
		3137
		3138	# HACK to clear player env face cache, we need some signal framework
		3139	# for this (global event?)
		3140	%ext::player_env::MUSIC_FACE_CACHE = ();
		3141
		3142	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3143
		3144	warn "loading facedata from $path\n";
		3145
		3146	my $facedata;
		3147	0 < aio_load $path, $facedata
		3148	or die "$path: $!";
		3149
		3150	$facedata = Coro::Storable::thaw $facedata;
		3151
		3152	$facedata->{version} == 2
		3153	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3154
		3155	# patch in the exptable
		3156	$facedata->{resource}{"res/exp_table"} = {
		3157	type => FT_RSRC,
		3158	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3159	};
		3160	cf::cede_to_tick;
		3161
		3162	{
		3163	my $faces = $facedata->{faceinfo};
		3164
		3165	while (my ($face, $info) = each %$faces) {
		3166	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3167
		3168	cf::face::set_visibility $idx, $info->{visibility};
		3169	cf::face::set_magicmap $idx, $info->{magicmap};
		3170	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3171	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3172
		3173	cf::cede_to_tick;
		3174	}
		3175
		3176	while (my ($face, $info) = each %$faces) {
		3177	next unless $info->{smooth};
		3178
		3179	my $idx = cf::face::find $face
		3180	or next;
		3181
		3182	if (my $smooth = cf::face::find $info->{smooth}) {
		3183	cf::face::set_smooth $idx, $smooth;
		3184	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3185	} else {
		3186	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3187	}
		3188
		3189	cf::cede_to_tick;
		3190	}
		3191	}
		3192
		3193	{
		3194	my $anims = $facedata->{animinfo};
		3195
		3196	while (my ($anim, $info) = each %$anims) {
		3197	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3198	cf::cede_to_tick;
		3199	}
		3200
		3201	cf::anim::invalidate_all; # d'oh
		3202	}
		3203
		3204	{
		3205	# TODO: for gcfclient pleasure, we should give resources
		3206	# that gcfclient doesn't grok a >10000 face index.
		3207	my $res = $facedata->{resource};
		3208
		3209	while (my ($name, $info) = each %$res) {
		3210	if (defined $info->{type}) {
		3211	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3212	my $data;
		3213
		3214	if ($info->{type} & 1) {
		3215	# prepend meta info
		3216
		3217	my $meta = $enc->encode ({
		3218	name => $name,
		3219	%{ $info->{meta} || {} },
		3220	});
		3221
		3222	$data = pack "(w/a*)*", $meta, $info->{data};
		3223	} else {
		3224	$data = $info->{data};
		3225	}
		3226
		3227	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3228	cf::face::set_type $idx, $info->{type};
		3229	} else {
		3230	$RESOURCE{$name} = $info;
		3231	}
		3232
		3233	cf::cede_to_tick;
		3234	}
		3235	}
		3236
		3237	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3238
		3239	1
		3240	}
		3241
		3242	cf::global->attach (on_resource_update => sub {
		3243	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3244	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3245
		3246	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3247	my $sound = $soundconf->{compat}[$_]
		3248	or next;
		3249
		3250	my $face = cf::face::find "sound/$sound->[1]";
		3251	cf::sound::set $sound->[0] => $face;
		3252	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3253	}
		3254
		3255	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3256	my $face = cf::face::find "sound/$v";
		3257	cf::sound::set $k => $face;
		3258	}
		3259	}
		3260	});
		3261
		3262	register_exticmd fx_want => sub {
		3263	my ($ns, $want) = @_;
		3264
		3265	while (my ($k, $v) = each %$want) {
		3266	$ns->fx_want ($k, $v);
		3267	}
		3268	};
		3269
		3270	sub reload_regions {
		3271	# HACK to clear player env face cache, we need some signal framework
		3272	# for this (global event?)
		3273	%ext::player_env::MUSIC_FACE_CACHE = ();
		3274
		3275	load_resource_file "$MAPDIR/regions"
2251	or die "unable to load regions file\n";#d#	3276	or die "unable to load regions file\n";
2252	}
2253		3277
2254	sub cfg_load {	3278	for (cf::region::list) {
		3279	$_->{match} = qr/$_->{match}/
		3280	if exists $_->{match};
		3281	}
		3282	}
		3283
		3284	sub reload_facedata {
		3285	load_facedata "$DATADIR/facedata"
		3286	or die "unable to load facedata\n";
		3287	}
		3288
		3289	sub reload_archetypes {
		3290	load_resource_file "$DATADIR/archetypes"
		3291	or die "unable to load archetypes\n";
		3292	#d# NEED to laod twice to resolve forward references
		3293	# this really needs to be done in an extra post-pass
		3294	# (which needs to be synchronous, so solve it differently)
		3295	load_resource_file "$DATADIR/archetypes"
		3296	or die "unable to load archetypes\n";
		3297	}
		3298
		3299	sub reload_treasures {
		3300	load_resource_file "$DATADIR/treasures"
		3301	or die "unable to load treasurelists\n";
		3302	}
		3303
		3304	sub reload_resources {
		3305	warn "reloading resource files...\n";
		3306
		3307	reload_regions;
		3308	reload_facedata;
		3309	#reload_archetypes;#d#
		3310	reload_archetypes;
		3311	reload_treasures;
		3312
		3313	warn "finished reloading resource files\n";
		3314	}
		3315
		3316	sub init {
		3317	reload_resources;
		3318	}
		3319
		3320	sub reload_config {
2255	open my $fh, "<:utf8", cf::confdir . "/config"	3321	open my $fh, "<:utf8", "$CONFDIR/config"
2256	or return;	3322	or return;
2257		3323
2258	local $/;	3324	local $/;
2259	*CFG = YAML::Syck::Load <$fh>;	3325	*CFG = YAML::Load <$fh>;
2260		3326
2261	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3327	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2262		3328
2263	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3329	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2264	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3330	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2270	};	3336	};
2271	warn $@ if $@;	3337	warn $@ if $@;
2272	}	3338	}
2273	}	3339	}
2274		3340
2275	sub init {
2276	init_resources;
2277	}
2278
2279	sub main {	3341	sub main {
2280	# we must not ever block the main coroutine	3342	# we must not ever block the main coroutine
2281	local $Coro::idle = sub {	3343	local $Coro::idle = sub {
2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3344	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2283	(async {	3345	(async {
2284	Event::one_event;	3346	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3347	EV::loop EV::LOOP_ONESHOT;
2285	})->prio (Coro::PRIO_MAX);	3348	})->prio (Coro::PRIO_MAX);
2286	};	3349	};
2287		3350
2288	cfg_load;	3351	reload_config;
2289	db_init;	3352	db_init;
2290	load_extensions;	3353	load_extensions;
2291		3354
2292	$TICK_WATCHER->start;	3355	$TICK_WATCHER->start;
		3356	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2293	Event::loop;	3357	EV::loop;
2294	}	3358	}
2295		3359
2296	#############################################################################	3360	#############################################################################
2297	# initialisation and cleanup	3361	# initialisation and cleanup
2298		3362
2299	# install some emergency cleanup handlers	3363	# install some emergency cleanup handlers
2300	BEGIN {	3364	BEGIN {
		3365	our %SIGWATCHER = ();
2301	for my $signal (qw(INT HUP TERM)) {	3366	for my $signal (qw(INT HUP TERM)) {
2302	Event->signal (	3367	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2303	reentrant => 0,
2304	data => WF_AUTOCANCEL,
2305	signal => $signal,
2306	prio => 0,
2307	cb => sub {
2308	cf::cleanup "SIG$signal";	3368	cf::cleanup "SIG$signal";
2309	},
2310	);	3369	};
		3370	}
		3371	}
		3372
		3373	sub write_runtime {
		3374	my $runtime = "$LOCALDIR/runtime";
		3375
		3376	# first touch the runtime file to show we are still running:
		3377	# the fsync below can take a very very long time.
		3378
		3379	IO::AIO::aio_utime $runtime, undef, undef;
		3380
		3381	my $guard = cf::lock_acquire "write_runtime";
		3382
		3383	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3384	or return;
		3385
		3386	my $value = $cf::RUNTIME + 90 + 10;
		3387	# 10 is the runtime save interval, for a monotonic clock
		3388	# 60 allows for the watchdog to kill the server.
		3389
		3390	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3391	and return;
		3392
		3393	# always fsync - this file is important
		3394	aio_fsync $fh
		3395	and return;
		3396
		3397	# touch it again to show we are up-to-date
		3398	aio_utime $fh, undef, undef;
		3399
		3400	close $fh
		3401	or return;
		3402
		3403	aio_rename "$runtime~", $runtime
		3404	and return;
		3405
		3406	warn "runtime file written.\n";
		3407
2311	}	3408	1
2312	}	3409	}
2313		3410
2314	sub emergency_save() {	3411	sub emergency_save() {
2315	my $freeze_guard = cf::freeze_mainloop;	3412	my $freeze_guard = cf::freeze_mainloop;
2316		3413
…		…
2322	# and maps saved/destroyed asynchronously.	3419	# and maps saved/destroyed asynchronously.
2323	warn "begin emergency player save\n";	3420	warn "begin emergency player save\n";
2324	for my $login (keys %cf::PLAYER) {	3421	for my $login (keys %cf::PLAYER) {
2325	my $pl = $cf::PLAYER{$login} or next;	3422	my $pl = $cf::PLAYER{$login} or next;
2326	$pl->valid or next;	3423	$pl->valid or next;
		3424	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2327	$pl->save;	3425	$pl->save;
2328	}	3426	}
2329	warn "end emergency player save\n";	3427	warn "end emergency player save\n";
2330		3428
2331	warn "begin emergency map save\n";	3429	warn "begin emergency map save\n";
…		…
2349		3447
2350	warn Carp::longmess "post_cleanup backtrace"	3448	warn Carp::longmess "post_cleanup backtrace"
2351	if $make_core;	3449	if $make_core;
2352	}	3450	}
2353		3451
2354	sub reload() {	3452	sub do_reload_perl() {
2355	# can/must only be called in main	3453	# can/must only be called in main
2356	if ($Coro::current != $Coro::main) {	3454	if ($Coro::current != $Coro::main) {
2357	warn "can only reload from main coroutine";	3455	warn "can only reload from main coroutine";
2358	return;	3456	return;
2359	}	3457	}
…		…
2370	warn "syncing database to disk";	3468	warn "syncing database to disk";
2371	BDB::db_env_txn_checkpoint $DB_ENV;	3469	BDB::db_env_txn_checkpoint $DB_ENV;
2372		3470
2373	# if anything goes wrong in here, we should simply crash as we already saved	3471	# if anything goes wrong in here, we should simply crash as we already saved
2374		3472
2375	warn "cancelling all WF_AUTOCANCEL watchers";
2376	for (Event::all_watchers) {
2377	$_->cancel if $_->data & WF_AUTOCANCEL;
2378	}
2379
2380	warn "flushing outstanding aio requests";	3473	warn "flushing outstanding aio requests";
2381	for (;;) {	3474	for (;;) {
2382	BDB::flush;	3475	BDB::flush;
2383	IO::AIO::flush;	3476	IO::AIO::flush;
2384	Coro::cede;	3477	Coro::cede_notself;
2385	last unless IO::AIO::nreqs || BDB::nreqs;	3478	last unless IO::AIO::nreqs || BDB::nreqs;
2386	warn "iterate...";	3479	warn "iterate...";
2387	}	3480	}
		3481
		3482	++$RELOAD;
2388		3483
2389	warn "cancelling all extension coros";	3484	warn "cancelling all extension coros";
2390	$_->cancel for values %EXT_CORO;	3485	$_->cancel for values %EXT_CORO;
2391	%EXT_CORO = ();	3486	%EXT_CORO = ();
2392		3487
2393	warn "removing commands";	3488	warn "removing commands";
2394	%COMMAND = ();	3489	%COMMAND = ();
2395		3490
2396	warn "removing ext commands";	3491	warn "removing ext/exti commands";
2397	%EXTCMD = ();	3492	%EXTCMD = ();
		3493	%EXTICMD = ();
2398		3494
2399	warn "unloading/nuking all extensions";	3495	warn "unloading/nuking all extensions";
2400	for my $pkg (@EXTS) {	3496	for my $pkg (@EXTS) {
2401	warn "... unloading $pkg";	3497	warn "... unloading $pkg";
2402		3498
…		…
2432	Symbol::delete_package "safe::$_"	3528	Symbol::delete_package "safe::$_"
2433	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3529	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2434		3530
2435	warn "unloading cf.pm \"a bit\"";	3531	warn "unloading cf.pm \"a bit\"";
2436	delete $INC{"cf.pm"};	3532	delete $INC{"cf.pm"};
		3533	delete $INC{"cf/pod.pm"};
2437		3534
2438	# don't, removes xs symbols, too,	3535	# don't, removes xs symbols, too,
2439	# and global variables created in xs	3536	# and global variables created in xs
2440	#Symbol::delete_package __PACKAGE__;	3537	#Symbol::delete_package __PACKAGE__;
2441		3538
…		…
2444	warn "reloading cf.pm";	3541	warn "reloading cf.pm";
2445	require cf;	3542	require cf;
2446	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3543	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2447		3544
2448	warn "loading config and database again";	3545	warn "loading config and database again";
2449	cf::cfg_load;	3546	cf::reload_config;
2450		3547
2451	warn "loading extensions";	3548	warn "loading extensions";
2452	cf::load_extensions;	3549	cf::load_extensions;
2453		3550
2454	warn "reattaching attachments to objects/players";	3551	warn "reattaching attachments to objects/players";
2455	_global_reattach;	3552	_global_reattach; # objects, sockets
2456	warn "reattaching attachments to maps";	3553	warn "reattaching attachments to maps";
2457	reattach $_ for values %MAP;	3554	reattach $_ for values %MAP;
2458		3555	warn "reattaching attachments to players";
2459	warn "loading reloadable resources";	3556	reattach $_ for values %PLAYER;
2460	init_resources;
2461		3557
2462	warn "leaving sync_job";	3558	warn "leaving sync_job";
2463		3559
2464	1	3560	1
2465	} or do {	3561	} or do {
…		…
2471	warn "reloaded";	3567	warn "reloaded";
2472	};	3568	};
2473		3569
2474	our $RELOAD_WATCHER; # used only during reload	3570	our $RELOAD_WATCHER; # used only during reload
2475		3571
		3572	sub reload_perl() {
		3573	# doing reload synchronously and two reloads happen back-to-back,
		3574	# coro crashes during coro_state_free->destroy here.
		3575
		3576	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3577	do_reload_perl;
		3578	undef $RELOAD_WATCHER;
		3579	};
		3580	}
		3581
2476	register_command "reload" => sub {	3582	register_command "reload" => sub {
2477	my ($who, $arg) = @_;	3583	my ($who, $arg) = @_;
2478		3584
2479	if ($who->flag (FLAG_WIZ)) {	3585	if ($who->flag (FLAG_WIZ)) {
2480	$who->message ("reloading server.");	3586	$who->message ("reloading server.");
2481		3587	async {
2482	# doing reload synchronously and two reloads happen back-to-back,	3588	$Coro::current->{desc} = "perl_reload";
2483	# coro crashes during coro_state_free->destroy here.
2484
2485	$RELOAD_WATCHER ||= Event->timer (
2486	reentrant => 0,
2487	after => 0,
2488	data => WF_AUTOCANCEL,
2489	cb => sub {
2490	reload;	3589	reload_perl;
2491	undef $RELOAD_WATCHER;
2492	},
2493	);	3590	};
2494	}	3591	}
2495	};	3592	};
2496		3593
2497	unshift @INC, $LIBDIR;	3594	unshift @INC, $LIBDIR;
2498		3595
2499	my $bug_warning = 0;	3596	my $bug_warning = 0;
2500		3597
2501	$TICK_WATCHER = Event->timer (	3598	our @WAIT_FOR_TICK;
2502	reentrant => 0,	3599	our @WAIT_FOR_TICK_BEGIN;
2503	parked => 1,	3600
2504	prio => 0,	3601	sub wait_for_tick {
2505	at => $NEXT_TICK || $TICK,	3602	return unless $TICK_WATCHER->is_active;
2506	data => WF_AUTOCANCEL,	3603	return if $Coro::current == $Coro::main;
2507	cb => sub {	3604
		3605	my $signal = new Coro::Signal;
		3606	push @WAIT_FOR_TICK, $signal;
		3607	$signal->wait;
		3608	}
		3609
		3610	sub wait_for_tick_begin {
		3611	return unless $TICK_WATCHER->is_active;
		3612	return if $Coro::current == $Coro::main;
		3613
		3614	my $signal = new Coro::Signal;
		3615	push @WAIT_FOR_TICK_BEGIN, $signal;
		3616	$signal->wait;
		3617	}
		3618
		3619	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
2508	if ($Coro::current != $Coro::main) {	3620	if ($Coro::current != $Coro::main) {
2509	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3621	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2510	unless ++$bug_warning > 10;	3622	unless ++$bug_warning > 10;
2511	return;	3623	return;
2512	}	3624	}
2513		3625
2514	$NOW = Event::time;	3626	$NOW = $tick_start = EV::now;
2515		3627
2516	cf::server_tick; # one server iteration	3628	cf::server_tick; # one server iteration
		3629
2517	$RUNTIME += $TICK;	3630	$RUNTIME += $TICK;
2518	$NEXT_TICK += $TICK;	3631	$NEXT_TICK = $_[0]->at;
2519		3632
2520	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3633	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2521	$NEXT_RUNTIME_WRITE = $NOW + 10;	3634	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2522	Coro::async_pool {	3635	Coro::async_pool {
		3636	$Coro::current->{desc} = "runtime saver";
2523	write_runtime	3637	write_runtime
2524	or warn "ERROR: unable to write runtime file: $!";	3638	or warn "ERROR: unable to write runtime file: $!";
2525	};
2526	}	3639	};
2527
2528	$WAIT_FOR_TICK->broadcast;
2529	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2530
2531	# my $AFTER = Event::time;
2532	# warn $AFTER - $NOW;#d#
2533
2534	# if we are delayed by four ticks or more, skip them all
2535	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2536
2537	$TICK_WATCHER->at ($NEXT_TICK);
2538	$TICK_WATCHER->start;
2539	},	3640	}
2540	);	3641
		3642	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3643	$sig->send;
		3644	}
		3645	while (my $sig = shift @WAIT_FOR_TICK) {
		3646	$sig->send;
		3647	}
		3648
		3649	$LOAD = ($NOW - $tick_start) / $TICK;
		3650	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3651
		3652	_post_tick;
		3653	};
		3654	$TICK_WATCHER->priority (EV::MAXPRI);
2541		3655
2542	{	3656	{
2543	BDB::max_poll_time $TICK * 0.1;	3657	# configure BDB
2544	$BDB_POLL_WATCHER = Event->io (	3658
2545	reentrant => 0,
2546	fd => BDB::poll_fileno,
2547	poll => 'r',
2548	prio => 0,
2549	data => WF_AUTOCANCEL,
2550	cb => \&BDB::poll_cb,
2551	);
2552	BDB::min_parallel 8;	3659	BDB::min_parallel 8;
2553		3660	BDB::max_poll_reqs $TICK * 0.1;
2554	BDB::set_sync_prepare {	3661	$Coro::BDB::WATCHER->priority (1);
2555	my $status;
2556	my $current = $Coro::current;
2557	(
2558	sub {
2559	$status = $!;
2560	$current->ready; undef $current;
2561	},
2562	sub {
2563	Coro::schedule while defined $current;
2564	$! = $status;
2565	},
2566	)
2567	};
2568		3662
2569	unless ($DB_ENV) {	3663	unless ($DB_ENV) {
2570	$DB_ENV = BDB::db_env_create;	3664	$DB_ENV = BDB::db_env_create;
		3665	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3666	| BDB::LOG_AUTOREMOVE, 1);
		3667	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3668	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2571		3669
2572	cf::sync_job {	3670	cf::sync_job {
2573	eval {	3671	eval {
2574	BDB::db_env_open	3672	BDB::db_env_open
2575	$DB_ENV,	3673	$DB_ENV,
2576	$BDB_ENV_DIR,	3674	$BDBDIR,
2577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3675	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3676	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2579	0666;	3677	0666;
2580		3678
2581	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3679	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2582
2583	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2584	$DB_ENV->set_lk_detect;
2585	};	3680	};
2586		3681
2587	cf::cleanup "db_env_open(db): $@" if $@;	3682	cf::cleanup "db_env_open(db): $@" if $@;
2588	};	3683	};
2589	}	3684	}
		3685
		3686	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3687	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3688	};
		3689	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3690	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3691	};
		3692	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3693	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3694	};
2590	}	3695	}
2591		3696
2592	{	3697	{
		3698	# configure IO::AIO
		3699
2593	IO::AIO::min_parallel 8;	3700	IO::AIO::min_parallel 8;
2594
2595	undef $Coro::AIO::WATCHER;
2596	IO::AIO::max_poll_time $TICK * 0.1;	3701	IO::AIO::max_poll_time $TICK * 0.1;
2597	$AIO_POLL_WATCHER = Event->io (	3702	$Coro::AIO::WATCHER->priority (1);
2598	reentrant => 0,
2599	data => WF_AUTOCANCEL,
2600	fd => IO::AIO::poll_fileno,
2601	poll => 'r',
2602	prio => 6,
2603	cb => \&IO::AIO::poll_cb,
2604	);
2605	}	3703	}
		3704
		3705	my $_log_backtrace;
		3706
		3707	sub _log_backtrace {
		3708	my ($msg, @addr) = @_;
		3709
		3710	$msg =~ s/\n//;
		3711
		3712	# limit the # of concurrent backtraces
		3713	if ($_log_backtrace < 2) {
		3714	++$_log_backtrace;
		3715	async {
		3716	$Coro::current->{desc} = "abt $msg";
		3717
		3718	my @bt = fork_call {
		3719	@addr = map { sprintf "%x", $_ } @addr;
		3720	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3721	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3722	or die "addr2line: $!";
		3723
		3724	my @funcs;
		3725	my @res = <$fh>;
		3726	chomp for @res;
		3727	while (@res) {
		3728	my ($func, $line) = splice @res, 0, 2, ();
		3729	push @funcs, "[$func] $line";
		3730	}
		3731
		3732	@funcs
		3733	};
		3734
		3735	LOG llevInfo, "[ABT] $msg\n";
		3736	LOG llevInfo, "[ABT] $_\n" for @bt;
		3737	--$_log_backtrace;
		3738	};
		3739	} else {
		3740	LOG llevInfo, "[ABT] $msg\n";
		3741	LOG llevInfo, "[ABT] [suppressed]\n";
		3742	}
		3743	}
		3744
		3745	# load additional modules
		3746	use cf::pod;
2606		3747
2607	END { cf::emergency_save }	3748	END { cf::emergency_save }
2608		3749
2609	1	3750	1
2610		3751

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