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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 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 3.3 ();	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 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
		32	use YAML ();
22	use IO::AIO 2.31 ();	33	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	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
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	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		47
35	our %COMMAND = ();	48	our %COMMAND = ();
36	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
		50
		51	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	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(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	94	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
56		102
57	binmode STDOUT;	103	binmode STDOUT;
58	binmode STDERR;	104	binmode STDERR;
59		105
60	# read virtual server time, if available	106	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
65	}	111	}
66		112
67	mkdir cf::localdir;	113	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		115
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	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
90	every server tick.	133	every server tick.
91		134
92	=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
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	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#?
125		210
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		218
133	# 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
134	# within the Safe compartment.	220	# within the Safe compartment.
135	for my $pkg (qw(	221	for my $pkg (qw(
136	cf::global cf::attachable	222	cf::global cf::attachable
…		…
141	)) {	227	)) {
142	no strict 'refs';	228	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	230	}
145		231
146	$Event::DIED = sub {	232	$EV::DIED = sub {
147	warn "error in event callback: @_";	233	warn "error in event callback: @_";
148	};	234	};
149		235
150	my %ext_pkg;	236	#############################################################################
151	my @exts;
152	my @hook;
153		237
154	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
155		239
156	=over 4	240	=over 4
157		241
158	=cut	242	=item dumpval $ref
159		243
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	244	=cut
161		245
		246	sub dumpval {
		247	eval {
		248	local $SIG{__DIE__};
		249	my $d;
		250	if (1) {
		251	$d = new Data::Dumper([$_[0]], ["*var"]);
		252	$d->Terse(1);
		253	$d->Indent(2);
		254	$d->Quotekeys(0);
		255	$d->Useqq(1);
		256	#$d->Bless(...);
		257	$d->Seen($_[1]) if @_ > 1;
		258	$d = $d->Dump();
		259	}
		260	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		261	$d
		262	} || "[unable to dump $_[0]: '$@']";
		263	}
		264
162	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
163		266
164	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
165		268
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
174		270
175	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
176		272
177	=cut	273	=cut
178		274
179	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
181	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	278	sub decode_json($) { $json_coder->decode ($_[0]) }
183		279
184	=item cf::lock_wait $string	280	=item cf::lock_wait $string
185		281
186	Wait until the given lock is available. See cf::lock_acquire.	282	Wait until the given lock is available. See cf::lock_acquire.
187		283
…		…
190	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
191	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,
192	for example when the coroutine gets canceled), the lock is automatically	288	for example when the coroutine gets canceled), the lock is automatically
193	returned.	289	returned.
194		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
195	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
196	uses map_find and cf::map::load uses map_load).	295	uses map_find and cf::map::load uses map_load).
197		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
198	=cut	301	=cut
199		302
200	our %LOCK;	303	our %LOCK;
		304	our %LOCKER;#d#
201		305
202	sub lock_wait($) {	306	sub lock_wait($) {
203	my ($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#
204		313
205	# wait for lock, if any	314	# wait for lock, if any
206	while ($LOCK{$key}) {	315	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	316	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	317	Coro::schedule;
…		…
214		323
215	# wait, to be sure we are not locked	324	# wait, to be sure we are not locked
216	lock_wait $key;	325	lock_wait $key;
217		326
218	$LOCK{$key} = [];	327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
219		329
220	Coro::guard {	330	Coro::guard {
		331	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	332	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	333	$_->ready for @{ delete $LOCK{$key} };
223	}	334	}
224	}	335	}
225		336
226	=item cf::async { BLOCK }	337	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	338	my ($key) = @_;
235		339
236	Coro::async {	340	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	341	}
241		342
242	sub freeze_mainloop {	343	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	344	return unless $TICK_WATCHER->is_active;
244		345
245	my $guard = Coro::guard { $TICK_WATCHER->start };	346	my $guard = Coro::guard {
		347	$TICK_WATCHER->start;
		348	};
246	$TICK_WATCHER->stop;	349	$TICK_WATCHER->stop;
247	$guard	350	$guard
248	}	351	}
249		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	$sig->wait;
		424	}
		425
		426	=item cf::async { BLOCK }
		427
		428	Currently the same as Coro::async_pool, meaning you cannot use
		429	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		430	thing you are allowed to do is call C<prio> on it.
		431
		432	=cut
		433
		434	BEGIN { *async = \&Coro::async_pool }
		435
250	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
251		437
252	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
255		442
256	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
259	fast or be very important.	446	fast or be very important.
…		…
262		449
263	sub sync_job(&) {	450	sub sync_job(&) {
264	my ($job) = @_;	451	my ($job) = @_;
265		452
266	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
267	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
269		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
270	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	462	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	463	my $freeze_guard = freeze_mainloop;
273		464
274	my $busy = 1;	465	my $busy = 1;
275	my @res;	466	my @res;
276		467
277	(Coro::async {	468	(async {
		469	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	470	@res = eval { $job->() };
279	warn $@ if $@;	471	warn $@ if $@;
280	undef $busy;	472	undef $busy;
281	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
282		474
283	while ($busy) {	475	while ($busy) {
		476	if (Coro::nready) {
284	Coro::cede_notself;	477	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
286	}	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
287		489
288	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
289	} else {	491	} else {
290	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
291		493
292	$job->()	494	$job->()
293	}	495	}
294	}	496	}
295		497
296	=item $coro = cf::coro { BLOCK }	498	=item $coro = cf::async_ext { BLOCK }
297		499
298	Creates and returns a new coro. This coro is automcatially being canceled	500	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	501	extension calling this is being unloaded.
300		502
301	=cut	503	=cut
302		504
303	sub coro(&) {	505	sub async_ext(&) {
304	my $cb = shift;	506	my $cb = shift;
305		507
306	my $coro = &cf::async ($cb);	508	my $coro = &Coro::async ($cb);
307		509
308	$coro->on_destroy (sub {	510	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	511	delete $EXT_CORO{$coro+0};
310	});	512	});
311	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
312		514
313	$coro	515	$coro
314	}	516	}
315		517
316	sub write_runtime {	518	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		519
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	520	Executes the given code block with the given arguments in a seperate
320	or return;	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.
321		524
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	525	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		526
326	aio_fsync $fh	527	sub fork_call(&@) {
327	and return;	528	my ($cb, @args) = @_;
328		529
329	close $fh	530	# we seemingly have to make a local copy of the whole thing,
330	or return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
331		533
332	aio_rename "$runtime~", $runtime	534	my @res = Coro::Util::fork_eval {
333	and return;	535	reset_signals;
		536	&$cb
		537	}, @args;
334		538
		539	wantarray ? @res : $res[-1]
		540	}
		541
		542	=item $value = cf::db_get $family => $key
		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($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
335	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		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 => $type });
336	}	678	}
337		679
338	=back	680	=back
339		681
340	=cut	682	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		683
462	#############################################################################	684	#############################################################################
463		685
464	=head2 ATTACHABLE OBJECTS	686	=head2 ATTACHABLE OBJECTS
465		687
…		…
467	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")
468	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
469		691
470	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>
471	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
472	crossfire+).	694	Deliantra).
473		695
474	=over 4	696	=over 4
475		697
476	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
477		699
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	813	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	814	our @CB_MAP = ();
593		815
594	my %attachment;	816	my %attachment;
595		817
		818	sub cf::attachable::thawer_merge {
		819	# simply override everything except _meta
		820	local $_[0]{_meta};
		821	%{$_[0]} = %{$_[1]};
		822	}
		823
596	sub _attach_cb($$$$) {	824	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	825	my ($registry, $event, $prio, $cb) = @_;
598		826
599	use sort 'stable';	827	use sort 'stable';
600		828
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
635		863
636	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		868
641	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	870	my $pkg = shift @arg;
643		871
644	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
674	}	902	}
675		903
676	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
677	} else {	905	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	907	}
680		908
681	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
682	}	910	}
683		911
…		…
685	if (ref $_[0]) {	913	if (ref $_[0]) {
686	_object_attach @_;	914	_object_attach @_;
687	} else {	915	} else {
688	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
689	}	917	}
		918	_recalc_want;
690	};	919	};
691		920
692	# all those should be optimised	921	# all those should be optimised
693	sub cf::attachable::detach {	922	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
698	reattach ($obj);	927	reattach ($obj);
699	} else {	928	} else {
700	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
701	}	930	}
		931	_recalc_want;
702	};	932	};
703		933
704	sub cf::attachable::attached {	934	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
706		936
…		…
721	";	951	";
722	die if $@;	952	die if $@;
723	}	953	}
724		954
725	our $override;	955	our $override;
726	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?
727		957
728	sub override {	958	sub override {
729	$override = 1;	959	$override = 1;
730	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
731	}	961	}
732		962
733	sub do_invoke {	963	sub do_invoke {
734	my $event = shift;	964	my $event = shift;
735	my $callbacks = shift;	965	my $callbacks = shift;
736		966
737	@invoke_results = ();	967	@INVOKE_RESULTS = ();
738		968
739	local $override;	969	local $override;
740		970
741	for (@$callbacks) {	971	for (@$callbacks) {
742	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
751	}	981	}
752		982
753	0	983	0
754	}	984	}
755		985
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		987
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		989
760	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
761		991
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		995
766	=back	996	=back
767		997
768	=cut	998	=cut
769		999
770	#############################################################################	1000	#############################################################################
771	# 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	}
772		1044
773	sub reattach {	1045	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1047	my ($obj) = @_;
		1048
		1049	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1050
777	my $registry = $obj->registry;	1051	my $registry = $obj->registry;
778		1052
779	@$registry = ();	1053	@$registry = ();
780		1054
…		…
795	cf::attachable->attach (	1069	cf::attachable->attach (
796	prio => -1000000,	1070	prio => -1000000,
797	on_instantiate => sub {	1071	on_instantiate => sub {
798	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
799		1073
800	$data = from_json $data;	1074	$data = decode_json $data;
801		1075
802	for (@$data) {	1076	for (@$data) {
803	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
804		1078
805	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1095	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
823		1097
824	sync_job {	1098	sync_job {
825	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
828		1103
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1107	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1108	close $fh;
834		1109
835	if (@$objs) {	1110	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1115	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1116	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
843	}	1118	}
844	} else {	1119	} else {
845	aio_unlink "$filename.pst";	1120	aio_unlink "$filename.pst";
…		…
851	}	1126	}
852	} else {	1127	} else {
853	aio_unlink $filename;	1128	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
855	}	1130	}
856	}	1131	};
857	}	1132	}
858		1133
859	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
861		1136
…		…
873	or return;	1148	or return;
874		1149
875	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
877	or return;	1152	or return;
		1153
878	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
879	}	1156	}
880		1157
		1158	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
883	return ($data, $av);	1162	($data, $av)
884	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
885		1170
886	#############################################################################	1171	#############################################################################
887	# command handling &c	1172	# command handling &c
888		1173
889	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1188	}
904		1189
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1191
907	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.
908		1197
909	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
910	called.	1199	called.
911		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
912	=cut	1212	=cut
913		1213
914	sub register_extcmd {	1214	sub register_extcmd {
915	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
916		1216
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
921	}	1224	}
922		1225
923	cf::player->attach (	1226	cf::player->attach (
924	on_command => sub {	1227	on_command => sub {
925	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1237	cf::override;
935	},	1238	},
936	on_extcmd => sub {	1239	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
938		1241
939	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1243
941	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
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
947	} else {	1259	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1261	}
950		1262
951	cf::override;	1263	cf::override;
952	},	1264	},
953	);	1265	);
954		1266
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1267	sub load_extensions {
		1268	cf::sync_job {
		1269	my %todo;
		1270
		1271	for my $path (<$LIBDIR/*.ext>) {
		1272	next unless -r $path;
		1273
		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;
		1331	}
		1332
		1333	skip:
		1334	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1335	unless $progress;
		1336	}
		1337	};
		1338	}
		1339
		1340	#############################################################################
		1341
		1342	=back
		1343
		1344	=head2 CORE EXTENSIONS
		1345
		1346	Functions and methods that extend core crossfire objects.
		1347
		1348	=cut
		1349
		1350	package cf::player;
		1351
		1352	use Coro::AIO;
		1353
		1354	=head3 cf::player
		1355
		1356	=over 4
		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
		1372	=item cf::player::find $login
		1373
		1374	Returns the given player object, loading it if necessary (might block).
		1375
		1376	=cut
		1377
		1378	sub playerdir($) {
		1379	"$PLAYERDIR/"
		1380	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1381	}
		1382
		1383	sub path($) {
		1384	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1385
		1386	(playerdir $login) . "/playerdata"
		1387	}
		1388
		1389	sub find_active($) {
		1390	$cf::PLAYER{$_[0]}
		1391	and $cf::PLAYER{$_[0]}->active
		1392	and $cf::PLAYER{$_[0]}
		1393	}
		1394
		1395	sub exists($) {
		1396	my ($login) = @_;
		1397
		1398	$cf::PLAYER{$login}
		1399	or cf::sync_job { !aio_stat path $login }
		1400	}
		1401
		1402	sub find($) {
		1403	return $cf::PLAYER{$_[0]} || do {
		1404	my $login = $_[0];
		1405
		1406	my $guard = cf::lock_acquire "user_find:$login";
		1407
		1408	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1423	$cf::PLAYER{$login} = $pl
		1424	}
		1425	}
		1426	}
		1427
		1428	sub save($) {
		1429	my ($pl) = @_;
		1430
		1431	return if $pl->{deny_save};
		1432
		1433	my $path = path $pl;
		1434	my $guard = cf::lock_acquire "user_save:$path";
		1435
		1436	return if $pl->{deny_save};
		1437
		1438	aio_mkdir playerdir $pl, 0770;
		1439	$pl->{last_save} = $cf::RUNTIME;
		1440
		1441	$pl->save_pl ($path);
		1442	cf::cede_to_tick;
		1443	}
		1444
		1445	sub new($) {
		1446	my ($login) = @_;
		1447
		1448	my $self = create;
		1449
		1450	$self->ob->name ($login);
		1451	$self->{deny_save} = 1;
		1452
		1453	$cf::PLAYER{$login} = $self;
		1454
		1455	$self
		1456	}
		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
		1468	=item $pl->quit_character
		1469
		1470	Nukes the player without looking back. If logged in, the connection will
		1471	be destroyed. May block for a long time.
		1472
		1473	=cut
		1474
		1475	sub quit_character {
		1476	my ($pl) = @_;
		1477
		1478	my $name = $pl->ob->name;
		1479
		1480	$pl->{deny_save} = 1;
		1481	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1482
		1483	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1484	$pl->deactivate;
		1485	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1486	$pl->ns->destroy if $pl->ns;
		1487
		1488	my $path = playerdir $pl;
		1489	my $temp = "$path~$cf::RUNTIME~deleting~";
		1490	aio_rename $path, $temp;
		1491	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1514	}
		1515
		1516	=item cf::player::list_logins
		1517
		1518	Returns am arrayref of all valid playernames in the system, can take a
		1519	while and may block, so not sync_job-capable, ever.
		1520
		1521	=cut
		1522
		1523	sub list_logins {
		1524	my $dirs = aio_readdir $PLAYERDIR
		1525	or return [];
		1526
		1527	my @logins;
		1528
		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") {
		1534	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1535	aio_read $fh, 0, 512, my $buf, 0 or next;
		1536	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1537	}
		1538
		1539	utf8::decode $login;
		1540	push @logins, $login;
		1541	}
		1542
		1543	\@logins
		1544	}
		1545
		1546	=item $player->maps
		1547
		1548	Returns an arrayref of map paths that are private for this
		1549	player. May block.
		1550
		1551	=cut
		1552
		1553	sub maps($) {
		1554	my ($pl) = @_;
		1555
		1556	$pl = ref $pl ? $pl->ob->name : $pl;
		1557
		1558	my $files = aio_readdir playerdir $pl
		1559	or return;
		1560
		1561	my @paths;
		1562
		1563	for (@$files) {
		1564	utf8::decode $_;
		1565	next if /\.(?:pl|pst)$/;
		1566	next unless /^$PATH_SEP/o;
		1567
		1568	push @paths, cf::map::normalise "~$pl/$_";
		1569	}
		1570
		1571	\@paths
		1572	}
		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
		1667	=item $player->ext_reply ($msgid, @msg)
		1668
		1669	Sends an ext reply to the player.
		1670
		1671	=cut
		1672
		1673	sub ext_reply($$@) {
		1674	my ($self, $id, @msg) = @_;
		1675
		1676	$self->ns->ext_reply ($id, @msg)
		1677	}
		1678
		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($) {
962	my ($path) = @_;	1706	my ($path) = @_;
963		1707
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1708	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1709
970	warn "loading '$path' into '$pkg'\n";	1710	for my $region (list) {
971		1711	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1712	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1713	if $region->specificity > $specificity;
974		1714	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1715	}
1004		1716
1005	# remove commands	1717	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1718	}
1111		1719
1112	=back	1720	=back
1113
1114		1721
1115	=head3 cf::map	1722	=head3 cf::map
1116		1723
1117	=over 4	1724	=over 4
1118		1725
…		…
1121	package cf::map;	1728	package cf::map;
1122		1729
1123	use Fcntl;	1730	use Fcntl;
1124	use Coro::AIO;	1731	use Coro::AIO;
1125		1732
		1733	use overload
		1734	'""' => \&as_string,
		1735	fallback => 1;
		1736
1126	our $MAX_RESET = 3600;	1737	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1738	our $DEFAULT_RESET = 3000;
1128		1739
1129	sub generate_random_map {	1740	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1741	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1742	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1743	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1744	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1745	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1746	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1747	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1748	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1749	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1750	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1751	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1752	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1753	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1754	(cf::region::find $rmp->{region}), $rmp->{custom}
		1755	)
		1756	}
		1757
		1758	=item cf::map->register ($regex, $prio)
		1759
		1760	Register a handler for the map path matching the given regex at the
		1761	givne priority (higher is better, built-in handlers have priority 0, the
		1762	default).
		1763
		1764	=cut
		1765
		1766	sub register {
		1767	my (undef, $regex, $prio) = @_;
		1768	my $pkg = caller;
		1769
		1770	no strict;
		1771	push @{"$pkg\::ISA"}, __PACKAGE__;
		1772
		1773	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1774	}
		1775
		1776	# also paths starting with '/'
		1777	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1778
		1779	sub thawer_merge {
		1780	my ($self, $merge) = @_;
		1781
		1782	# we have to keep some variables in memory intact
		1783	local $self->{path};
		1784	local $self->{load_path};
		1785
		1786	$self->SUPER::thawer_merge ($merge);
		1787	}
		1788
		1789	sub normalise {
		1790	my ($path, $base) = @_;
		1791
		1792	$path = "$path"; # make sure its a string
		1793
		1794	$path =~ s/\.map$//;
		1795
		1796	# map plan:
		1797	#
		1798	# /! non-realised random map exit (special hack!)
		1799	# {... are special paths that are not being touched
		1800	# ?xxx/... are special absolute paths
		1801	# ?random/... random maps
		1802	# /... normal maps
		1803	# ~user/... per-player map of a specific user
		1804
		1805	$path =~ s/$PATH_SEP/\//go;
		1806
		1807	# treat it as relative path if it starts with
		1808	# something that looks reasonable
		1809	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1810	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1811
		1812	$base =~ s{[^/]+/?$}{};
		1813	$path = "$base/$path";
		1814	}
		1815
		1816	for ($path) {
		1817	redo if s{//}{/};
		1818	redo if s{/\.?/}{/};
		1819	redo if s{/[^/]+/\.\./}{/};
		1820	}
		1821
		1822	$path
		1823	}
		1824
		1825	sub new_from_path {
		1826	my (undef, $path, $base) = @_;
		1827
		1828	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1829
		1830	$path = normalise $path, $base;
		1831
		1832	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1833	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1834	my $self = bless cf::map::new, $pkg;
		1835	$self->{path} = $path; $self->path ($path);
		1836	$self->init; # pass $1 etc.
		1837	return $self;
		1838	}
		1839	}
		1840
		1841	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1842	()
		1843	}
		1844
		1845	sub init {
		1846	my ($self) = @_;
		1847
		1848	$self
		1849	}
		1850
		1851	sub as_string {
		1852	my ($self) = @_;
		1853
		1854	"$self->{path}"
		1855	}
		1856
		1857	# the displayed name, this is a one way mapping
		1858	sub visible_name {
		1859	&as_string
		1860	}
		1861
		1862	# the original (read-only) location
		1863	sub load_path {
		1864	my ($self) = @_;
		1865
		1866	"$MAPDIR/$self->{path}.map"
		1867	}
		1868
		1869	# the temporary/swap location
		1870	sub save_path {
		1871	my ($self) = @_;
		1872
		1873	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1874	"$TMPDIR/$path.map"
		1875	}
		1876
		1877	# the unique path, undef == no special unique path
		1878	sub uniq_path {
		1879	my ($self) = @_;
		1880
		1881	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1882	"$UNIQUEDIR/$path"
1146	}	1883	}
1147		1884
1148	# and all this just because we cannot iterate over	1885	# and all this just because we cannot iterate over
1149	# all maps in C++...	1886	# all maps in C++...
1150	sub change_all_map_light {	1887	sub change_all_map_light {
…		…
1152		1889
1153	$_->change_map_light ($change)	1890	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1891	for grep $_->outdoor, values %cf::MAP;
1155	}	1892	}
1156		1893
		1894	sub decay_objects {
		1895	my ($self) = @_;
		1896
		1897	return if $self->{deny_reset};
		1898
		1899	$self->do_decay_objects;
		1900	}
		1901
		1902	sub unlink_save {
		1903	my ($self) = @_;
		1904
		1905	utf8::encode (my $save = $self->save_path);
		1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1907	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1908	}
		1909
1157	sub try_load_header($) {	1910	sub load_header_from($) {
1158	my ($path) = @_;	1911	my ($self, $path) = @_;
1159		1912
1160	utf8::encode $path;	1913	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1162	or return;	1915	or return;
1163		1916
1164	my $map = cf::map::new	1917	$self->_load_header ($f)
1165	or return;	1918	or return;
1166		1919
1167	# for better error messages only, will be overwritten	1920	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1921	$f->resolve_delayed_derefs;
1169		1922
1170	$map->load_header ($path)	1923	$self->{load_path} = $path;
		1924
		1925	1
		1926	}
		1927
		1928	sub load_header_orig {
		1929	my ($self) = @_;
		1930
		1931	$self->load_header_from ($self->load_path)
		1932	}
		1933
		1934	sub load_header_temp {
		1935	my ($self) = @_;
		1936
		1937	$self->load_header_from ($self->save_path)
		1938	}
		1939
		1940	sub prepare_temp {
		1941	my ($self) = @_;
		1942
		1943	$self->last_access ((delete $self->{last_access})
		1944	|| $cf::RUNTIME); #d#
		1945	# safety
		1946	$self->{instantiate_time} = $cf::RUNTIME
		1947	if $self->{instantiate_time} > $cf::RUNTIME;
		1948	}
		1949
		1950	sub prepare_orig {
		1951	my ($self) = @_;
		1952
		1953	$self->{load_original} = 1;
		1954	$self->{instantiate_time} = $cf::RUNTIME;
		1955	$self->last_access ($cf::RUNTIME);
		1956	$self->instantiate;
		1957	}
		1958
		1959	sub load_header {
		1960	my ($self) = @_;
		1961
		1962	if ($self->load_header_temp) {
		1963	$self->prepare_temp;
		1964	} else {
		1965	$self->load_header_orig
1171	or return;	1966	or return;
		1967	$self->prepare_orig;
		1968	}
1172		1969
1173	$map->{load_path} = $path;	1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
1174		1972
1175	$map	1973	$self->default_region (cf::region::find_by_path $self->{path})
		1974	unless $self->default_region;
		1975
		1976	1
1176	}	1977	}
1177		1978
1178	sub find;	1979	sub find;
1179	sub find {	1980	sub find {
1180	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1181		1982
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1984
		1985	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1986	cf::lock_wait "map_find:$path";
1188		1987
1189	$cf::MAP{$key} || do {	1988	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1989	my $guard1 = cf::lock_acquire "map_find:$path";
		1990	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1991
1192	# do it the slow way	1992	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1993	or return;
1211		1994
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1224		1996
1225	Coro::cede;	1997	$map->load_header
		1998	or return;
1226		1999
1227	if ($map->should_reset) {	2000	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2001	# doing this can freeze the server in a sync job, obviously
		2002	#$cf::WAIT_FOR_TICK->wait;
		2003	undef $guard1;
		2004	undef $guard2;
1228	$map->reset;	2005	$map->reset;
1229	undef $guard;
1230	$map = find $path	2006	return find $path;
1231	or return;
1232	}	2007	}
1233		2008
1234	$cf::MAP{$key} = $map	2009	$cf::MAP{$path} = $map
1235	}	2010	}
1236	}	2011	}
		2012
		2013	sub pre_load { }
		2014	sub post_load { }
1237		2015
1238	sub load {	2016	sub load {
1239	my ($self) = @_;	2017	my ($self) = @_;
1240		2018
		2019	local $self->{deny_reset} = 1; # loading can take a long time
		2020
1241	my $path = $self->{path};	2021	my $path = $self->{path};
		2022
		2023	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2024	my $guard = cf::lock_acquire "map_data:$path";
1243		2025
		2026	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2027	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2028
1246	$self->in_memory (cf::MAP_LOADING);	2029	$self->in_memory (cf::MAP_LOADING);
1247		2030
1248	$self->alloc;	2031	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2032
		2033	$self->pre_load;
		2034	cf::cede_to_tick;
		2035
		2036	my $f = new_from_file cf::object::thawer $self->{load_path};
		2037	$f->skip_block;
		2038	$self->_load_objects ($f)
1250	or return;	2039	or return;
1251		2040
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	2042	if delete $self->{load_original};
1254		2043
1255	if (my $uniq = $path->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2045	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2048	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1260	}	2052	}
1261	}	2053	}
1262		2054
1263	Coro::cede;	2055	$f->resolve_delayed_derefs;
1264		2056
		2057	cf::cede_to_tick;
1265	# now do the right thing for maps	2058	# now do the right thing for maps
1266	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2061	unless $self->difficulty;
		2062	cf::cede_to_tick;
		2063
		2064	unless ($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;
1278	$self->activate;	2071	$self->activate;
1279	}	2072	}
1280		2073
1281	Coro::cede;	2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
1282		2076
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_IN_MEMORY);
		2078	}
		2079
		2080	$self->post_load;
		2081	}
		2082
		2083	sub customise_for {
		2084	my ($self, $ob) = @_;
		2085
		2086	return find "~" . $ob->name . "/" . $self->{path}
		2087	if $self->per_player;
		2088
		2089	# return find "?party/" . $ob->name . "/" . $self->{path}
		2090	# if $self->per_party;
		2091
		2092	$self
		2093	}
		2094
		2095	# find and load all maps in the 3x3 area around a map
		2096	sub load_neighbours {
		2097	my ($map) = @_;
		2098
		2099	my @neigh; # diagonal neighbours
		2100
		2101	for (0 .. 3) {
		2102	my $neigh = $map->tile_path ($_)
		2103	or next;
		2104	$neigh = find $neigh, $map
		2105	or next;
		2106	$neigh->load;
		2107
		2108	push @neigh,
		2109	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2110	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2111	}
		2112
		2113	for (grep defined $_->[0], @neigh) {
		2114	my ($path, $origin) = @$_;
		2115	my $neigh = find $path, $origin
		2116	or next;
		2117	$neigh->load;
		2118	}
1284	}	2119	}
1285		2120
1286	sub find_sync {	2121	sub find_sync {
1287	my ($path, $origin) = @_;	2122	my ($path, $origin) = @_;
1288		2123
1289	cf::sync_job { cf::map::find $path, $origin }	2124	cf::sync_job { find $path, $origin }
1290	}	2125	}
1291		2126
1292	sub do_load_sync {	2127	sub do_load_sync {
1293	my ($map) = @_;	2128	my ($map) = @_;
1294		2129
		2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2131	if $Coro::current == $Coro::main;
		2132
1295	cf::sync_job { $map->load };	2133	cf::sync_job { $map->load };
		2134	}
		2135
		2136	our %MAP_PREFETCH;
		2137	our $MAP_PREFETCHER = undef;
		2138
		2139	sub find_async {
		2140	my ($path, $origin, $load) = @_;
		2141
		2142	$path = normalise $path, $origin && $origin->{path};
		2143
		2144	if (my $map = $cf::MAP{$path}) {
		2145	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2146	}
		2147
		2148	$MAP_PREFETCH{$path} |= $load;
		2149
		2150	$MAP_PREFETCHER ||= cf::async {
		2151	$Coro::current->{desc} = "map prefetcher";
		2152
		2153	while (%MAP_PREFETCH) {
		2154	while (my ($k, $v) = each %MAP_PREFETCH) {
		2155	if (my $map = find $k) {
		2156	$map->load if $v;
		2157	}
		2158
		2159	delete $MAP_PREFETCH{$k};
		2160	}
		2161	}
		2162	undef $MAP_PREFETCHER;
		2163	};
		2164	$MAP_PREFETCHER->prio (6);
		2165
		2166	()
1296	}	2167	}
1297		2168
1298	sub save {	2169	sub save {
1299	my ($self) = @_;	2170	my ($self) = @_;
1300		2171
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2173
1303	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1304		2175
1305	return unless $self->dirty;	2176	return unless $self->dirty;
1306		2177
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2178	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2179	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2180
1310	$self->{load_path} = $save;	2181	$self->{load_path} = $save;
1311		2182
1312	return if $self->{deny_save};	2183	return if $self->{deny_save};
1313		2184
1314	local $self->{last_access} = $self->last_access;#d#	2185	local $self->{last_access} = $self->last_access;#d#
1315		2186
		2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
		2189	$_->contr->save for $self->players;
		2190	};
		2191
1316	if ($uniq) {	2192	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2195	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2196	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2197	}
1322	}	2198	}
1323		2199
1324	sub swap_out {	2200	sub swap_out {
1325	my ($self) = @_;	2201	my ($self) = @_;
1326		2202
1327	# save first because save cedes	2203	# save first because save cedes
1328	$self->save;	2204	$self->save;
1329		2205
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2207
1332	return if $self->players;	2208	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2210	return if $self->{deny_save};
1335		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
		2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2216	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2217	}
1339		2218
1340	sub reset_at {	2219	sub reset_at {
1341	my ($self) = @_;	2220	my ($self) = @_;
1342		2221
1343	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1346		2224
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2227
…		…
1354	my ($self) = @_;	2232	my ($self) = @_;
1355		2233
1356	$self->reset_at <= $cf::RUNTIME	2234	$self->reset_at <= $cf::RUNTIME
1357	}	2235	}
1358		2236
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2237	sub reset {
1381	my ($self) = @_;	2238	my ($self) = @_;
1382		2239
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2241
1385	return if $self->players;	2242	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2243
1388	warn "resetting map ", $self->path;#d#	2244	warn "resetting map ", $self->path;
		2245
		2246	$self->in_memory (cf::MAP_SWAPPED);
		2247
		2248	# need to save uniques path
		2249	unless ($self->{deny_save}) {
		2250	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2251
		2252	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2253	if $uniq;
		2254	}
1389		2255
1390	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1391		2257
		2258	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2259	$_->clear_links_to ($self) for values %cf::MAP;
		2260	$self->clear;
1393		2261
1394	$self->unlink_save;	2262	$self->unlink_save;
1395	$self->destroy;	2263	$self->destroy;
1396	}	2264	}
1397		2265
1398	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1399		2267
1400	sub nuke {	2268	sub nuke {
1401	my ($self) = @_;	2269	my ($self) = @_;
1402		2270
		2271	{
		2272	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2273
		2274	delete $cf::MAP{$self->path};
		2275
		2276	$self->unlink_save;
		2277
		2278	bless $self, "cf::map";
		2279	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2283
		2284	$cf::MAP{$self->path} = $self;
		2285	}
		2286
1406	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
1407	}	2288	}
1408		2289
1409	sub customise_for {	2290	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2291
1412	if ($map->per_player) {	2292	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
1414	}	2298	[
1415		2299	map {
1416	$map	2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
1417	}	2306	}
1418		2307
1419	sub emergency_save {	2308	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2309
1422	warn "enter emergency map save\n";	2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
1423		2312
1424	cf::sync_job {	2313	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2314
1429	warn "end emergency map save\n";	2315	sub random_maps() {
		2316	[
		2317	map {
		2318	utf8::decode $_;
		2319	/\.map$/
		2320	? normalise "?random/$_"
		2321	: ()
		2322	} @{ aio_readdir $RANDOMDIR or [] }
		2323	]
		2324	}
		2325
		2326	=item cf::map::unique_maps
		2327
		2328	Returns an arrayref of paths of all shared maps that have
		2329	instantiated unique items. May block.
		2330
		2331	=cut
		2332
		2333	sub unique_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $UNIQUEDIR or [] }
		2341	]
1430	}	2342	}
1431		2343
1432	package cf;	2344	package cf;
1433		2345
1434	=back	2346	=back
1435		2347
		2348	=head3 cf::object
		2349
		2350	=cut
		2351
		2352	package cf::object;
		2353
		2354	=over 4
		2355
		2356	=item $ob->inv_recursive
		2357
		2358	Returns the inventory of the object _and_ their inventories, recursively.
		2359
		2360	=cut
		2361
		2362	sub inv_recursive_;
		2363	sub inv_recursive_ {
		2364	map { $_, inv_recursive_ $_->inv } @_
		2365	}
		2366
		2367	sub inv_recursive {
		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	}
		2397	}
		2398
		2399	package cf;
		2400
		2401	=back
1436		2402
1437	=head3 cf::object::player	2403	=head3 cf::object::player
1438		2404
1439	=over 4	2405	=over 4
1440		2406
…		…
1454		2420
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2421	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2422
1457	if ($self->{record_replies}) {	2423	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2424	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2425
1459	} 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 {
1460	$msg = $npc->name . " says: $msg" if $npc;	2434	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2435	$self->message ($msg, $flags);
		2436	}
1462	}	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 (@_);
1463	}	2448	}
1464		2449
1465	=item $player_object->may ("access")	2450	=item $player_object->may ("access")
1466		2451
1467	Returns wether the given player is authorized to access resource "access"	2452	Returns wether the given player is authorized to access resource "access"
…		…
1480		2465
1481	=item $player_object->enter_link	2466	=item $player_object->enter_link
1482		2467
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2468	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2469
1485	The player should be reaosnably safe there for short amounts of time. You	2470	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2471	I<MUST> call C<leave_link> as soon as possible, though.
1487		2472
		2473	Will never block.
		2474
1488	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1489		2476
1490	Moves the player out of the specila link map onto the given map. If the	2477	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2478	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2479	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2480	fails, to the emergency map position.
1494		2481
1495	Might block.	2482	Might block.
1496		2483
1497	=cut	2484	=cut
		2485
		2486	sub link_map {
		2487	unless ($LINK_MAP) {
		2488	$LINK_MAP = cf::map::find "{link}"
		2489	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2490	$LINK_MAP->load;
		2491	}
		2492
		2493	$LINK_MAP
		2494	}
1498		2495
1499	sub cf::object::player::enter_link {	2496	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2497	my ($self) = @_;
1501		2498
1502	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1503		2500
1504	return if $self->map == $LINK_MAP;	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2502
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1508		2505
1509	$self->enter_map ($LINK_MAP, 20, 20);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2507	}
1511		2508
1512	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1514		2513
1515	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1516		2515
1517	unless ($map) {	2516	unless ($map) {
1518	# restore original map position	2517	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1535		2534
1536	$map->load;	2535	$map->load;
		2536	$map->load_neighbours;
1537		2537
		2538	return unless $self->contr->active;
1538	$self->activate_recursive;	2539	$self->activate_recursive;
		2540
		2541	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2542	$self->enter_map ($map, $x, $y);
1540	}	2543	}
1541		2544
1542	cf::player->attach (	2545	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2546
1546	# abort map switching before logout	2547	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2548	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2549	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2550	the new (success) or old (failed) map position. In either case, $done will
1550	};	2551	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2552
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2553	=cut
		2554
		2555	our $GOTOGEN;
1573		2556
1574	sub cf::object::player::goto {	2557	sub cf::object::player::goto {
1575	my ($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;
1576		2562
1577	$self->enter_link;	2563	$self->enter_link;
1578		2564
1579	(cf::async {	2565	(async {
1580	$path = new cf::path $path;	2566	$Coro::current->{desc} = "player::goto $path $x $y";
1581		2567
1582	my $map = cf::map::find $path->as_string;	2568	# *tag paths override both path and x|y
		2569	if ($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
		2587	my $map = eval {
		2588	my $map = defined $path ? cf::map::find $path : undef;
		2589
		2590	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2591	$map = $map->customise_for ($self);
1584		2592	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2593	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2594	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	}
1589		2596
		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 $@;
		2603	}
		2604
		2605	if ($gen == $self->{_goto_generation}) {
		2606	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2607	$self->leave_link ($map, $x, $y);
		2608	}
		2609
		2610	$done->() if $done;
1591	})->prio (1);	2611	})->prio (1);
1592	}	2612	}
1593		2613
1594	=item $player_object->enter_exit ($exit_object)	2614	=item $player_object->enter_exit ($exit_object)
1595		2615
…		…
1597		2617
1598	sub parse_random_map_params {	2618	sub parse_random_map_params {
1599	my ($spec) = @_;	2619	my ($spec) = @_;
1600		2620
1601	my $rmp = { # defaults	2621	my $rmp = { # defaults
1602	xsize => 10,	2622	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2623	ysize => (cf::rndm 15, 40),
		2624	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2625	#layout => string,
1604	};	2626	};
1605		2627
1606	for (split /\n/, $spec) {	2628	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2629	my ($k, $v) = split /\s+/, $_, 2;
1608		2630
…		…
1612	$rmp	2634	$rmp
1613	}	2635	}
1614		2636
1615	sub prepare_random_map {	2637	sub prepare_random_map {
1616	my ($exit) = @_;	2638	my ($exit) = @_;
		2639
		2640	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2641
1618	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2644	# that depends on the exit object
1621		2645
1622	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
1623		2647
1624	if ($exit->map) {	2648	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2649	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
1629	}	2653	}
1630		2654
1631	$rmp->{random_seed} ||= $exit->random_seed;	2655	$rmp->{random_seed} ||= $exit->random_seed;
1632		2656
1633	my $data = cf::to_json $rmp;	2657	my $data = cf::encode_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2658	my $md5 = Digest::MD5::md5_hex $data;
		2659	my $meta = "$RANDOMDIR/$md5.meta";
1635		2660
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2661	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2662	aio_write $fh, 0, (length $data), $data, 0;
		2663	undef $fh;
		2664	aio_rename "$meta~", $meta;
1638		2665
1639	$exit->slaying ("?random/$md5");	2666	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2667	$exit->msg (undef);
1641	}	2668	}
1642	}	2669	}
…		…
1644	sub cf::object::player::enter_exit {	2671	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2672	my ($self, $exit) = @_;
1646		2673
1647	return unless $self->type == cf::PLAYER;	2674	return unless $self->type == cf::PLAYER;
1648		2675
		2676	if ($exit->slaying eq "/!") {
		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
		2680	cf::sync_job { prepare_random_map $exit };
		2681	}
		2682
		2683	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2684	my $hp = $exit->stats->hp;
		2685	my $sp = $exit->stats->sp;
		2686
1649	$self->enter_link;	2687	$self->enter_link;
1650		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
1651	(cf::async {	2693	(async {
		2694	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2695
1652	$self->deactivate_recursive; # just to be sure	2696	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2697	unless (eval {
1654	prepare_random_map $exit	2698	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2699
1660	1;	2700	1;
1661	}) {	2701	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "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. "
1664	. "Please report this to the dungeon master",	2704	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2706
1667	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2708	$self->leave_link;
1669	}	2709	}
1670	})->prio (1);	2710	})->prio (1);
…		…
1683		2723
1684	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1686		2726
1687	utf8::encode $text;	2727	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2729	}
1690		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	}
1691		2889
1692	=item $success = $client->query ($flags, "text", \&cb)	2890	=item $success = $client->query ($flags, "text", \&cb)
1693		2891
1694	Queues a query to the client, calling the given callback with	2892	Queues a query to the client, calling the given callback with
1695	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>,
1696	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>.
1697		2895
1698	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
1699	reliable at some point in the future.	2897	become reliable at some point in the future.
1700		2898
1701	=cut	2899	=cut
1702		2900
1703	sub cf::client::query {	2901	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2902	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2910	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2911	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2912
1715	$self->send_packet ($self->{query_queue}[0][0])	2913	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2914	if @{ $self->{query_queue} } == 1;
		2915
		2916	1
1717	}	2917	}
1718		2918
1719	cf::client->attach (	2919	cf::client->attach (
		2920	on_connect => sub {
		2921	my ($ns) = @_;
		2922
		2923	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2924	},
1720	on_reply => sub {	2925	on_reply => sub {
1721	my ($ns, $msg) = @_;	2926	my ($ns, $msg) = @_;
1722		2927
1723	# this weird shuffling is so that direct followup queries	2928	# this weird shuffling is so that direct followup queries
1724	# get handled first	2929	# get handled first
1725	my $queue = delete $ns->{query_queue}	2930	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2931	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2932
1728	(shift @$queue)->[1]->($msg);	2933	(shift @$queue)->[1]->($msg);
		2934	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2935
1730	push @{ $ns->{query_queue} }, @$queue;	2936	push @{ $ns->{query_queue} }, @$queue;
1731		2937
1732	if (@{ $ns->{query_queue} } == @$queue) {	2938	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2939	if (@$queue) {
…		…
1735	} else {	2941	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2942	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2943	}
1738	}	2944	}
1739	},	2945	},
		2946	on_exticmd => sub {
		2947	my ($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	},
1740	);	2972	);
1741		2973
1742	=item $client->coro (\&cb)	2974	=item $client->async (\&cb)
1743		2975
1744	Create a new coroutine, running the specified callback. The coroutine will	2976	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2977	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2978	or loss of connection).
1747		2979
1748	=cut	2980	=cut
1749		2981
1750	sub cf::client::coro {	2982	sub cf::client::async {
1751	my ($self, $cb) = @_;	2983	my ($self, $cb) = @_;
1752		2984
1753	my $coro = &cf::async ($cb);	2985	my $coro = &Coro::async ($cb);
1754		2986
1755	$coro->on_destroy (sub {	2987	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2988	delete $self->{_coro}{$coro+0};
1757	});	2989	});
1758		2990
…		…
1785	our $safe = new Safe "safe";	3017	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	3018	our $safe_hole = new Safe::Hole;
1787		3019
1788	$SIG{FPE} = 'IGNORE';	3020	$SIG{FPE} = 'IGNORE';
1789		3021
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3022	$safe->permit_only (Opcode::opset qw(
		3023	:base_core :base_mem :base_orig :base_math
		3024	grepstart grepwhile mapstart mapwhile
		3025	sort time
		3026	));
1791		3027
1792	# here we export the classes and methods available to script code	3028	# here we export the classes and methods available to script code
1793		3029
1794	=pod	3030	=pod
1795		3031
1796	The following fucntions and emthods are available within a safe environment:	3032	The following functions and methods are available within a safe environment:
1797		3033
1798	cf::object contr pay_amount pay_player map	3034	cf::object
		3035	contr pay_amount pay_player map x y force_find force_add destroy
		3036	insert remove name archname title slaying race decrease_ob_nr
		3037
1799	cf::object::player player	3038	cf::object::player
1800	cf::player peaceful	3039	player
1801	cf::map trigger	3040
		3041	cf::player
		3042	peaceful
		3043
		3044	cf::map
		3045	trigger
1802		3046
1803	=cut	3047	=cut
1804		3048
1805	for (	3049	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	3050	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3051	insert remove inv name archname title slaying race
		3052	decrease_ob_nr destroy)],
1807	["cf::object::player" => qw(player)],	3053	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	3054	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	3055	["cf::map" => qw(trigger)],
1810	) {	3056	) {
1811	no strict 'refs';	3057	no strict 'refs';
…		…
1882	=back	3128	=back
1883		3129
1884	=cut	3130	=cut
1885		3131
1886	#############################################################################	3132	#############################################################################
		3133	# the server's init and main functions
1887		3134
1888	=head2 EXTENSION DATABASE SUPPORT	3135	sub load_facedata($) {
		3136	my ($path) = @_;
1889		3137
1890	Crossfire maintains a very simple database for extension use. It can	3138	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	3139	# for this (global event?)
1892	excludes objects.	3140	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		3141
1894	The parameter C<$family> should best start with the name of the extension	3142	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		3143
1897	=over 4	3144	warn "loading facedata from $path\n";
1898		3145
1899	=item $hashref = cf::db_get $family	3146	my $facedata;
		3147	0 < aio_load $path, $facedata
		3148	or die "$path: $!";
1900		3149
1901	Return a hashref for use by the extension C<$family>, which can be	3150	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		3151
1905	=item $value = cf::db_get $family => $key	3152	$facedata->{version} == 2
		3153	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		3154
1907	Returns a single value from the database	3155	# patch in the exptable
1908		3156	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	3157	type => FT_RSRC,
1910		3158	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	3159	};
		3160	cf::cede_to_tick;
1960		3161
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3162	{
		3163	my $faces = $facedata->{faceinfo};
1965		3164
1966	sub db_get($;$) {	3165	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3166	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971		3167
1972	sub db_put($$;$) {	3168	cf::face::set_visibility $idx, $info->{visibility};
1973	if (@_ >= 3) {	3169	cf::face::set_magicmap $idx, $info->{magicmap};
1974	$DB->{$_[0]}{$_[1]} = $_[2];	3170	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1975	} else {	3171	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980		3172
1981	cf::global->attach (	3173	cf::cede_to_tick;
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3174	}
1986	);
1987	}
1988		3175
1989	#############################################################################	3176	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3177	next unless $info->{smooth};
1991		3178
1992	sub cfg_load {	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"
		3276	or die "unable to load regions file\n";
		3277
		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 {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3321	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3322	or return;
1995		3323
1996	local $/;	3324	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3325	*CFG = YAML::Load <$fh>;
1998		3326
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3327	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3328
		3329	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3330	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2000		3331
2001	if (exists $CFG{mlockall}) {	3332	if (exists $CFG{mlockall}) {
2002	eval {	3333	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3334	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3335	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3336	};
2006	warn $@ if $@;	3337	warn $@ if $@;
2007	}	3338	}
2008	}	3339	}
2009		3340
2010	sub main {	3341	sub main {
2011	# we must not ever block the main coroutine	3342	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3343	local $Coro::idle = sub {
2013	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#
2014	(Coro::unblock_sub {	3345	(async {
2015	Event::one_event;	3346	$Coro::current->{desc} = "IDLE BUG HANDLER";
2016	})->();	3347	EV::loop EV::LOOP_ONESHOT;
		3348	})->prio (Coro::PRIO_MAX);
2017	};	3349	};
2018		3350
2019	cfg_load;	3351	reload_config;
2020	db_load;	3352	db_init;
2021	load_extensions;	3353	load_extensions;
		3354
		3355	$TICK_WATCHER->start;
		3356	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2022	Event::loop;	3357	EV::loop;
2023	}	3358	}
2024		3359
2025	#############################################################################	3360	#############################################################################
2026	# initialisation	3361	# initialisation and cleanup
2027		3362
		3363	# install some emergency cleanup handlers
		3364	BEGIN {
		3365	our %SIGWATCHER = ();
		3366	for my $signal (qw(INT HUP TERM)) {
		3367	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3368	cf::cleanup "SIG$signal";
		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
		3408	1
		3409	}
		3410
		3411	sub emergency_save() {
		3412	my $freeze_guard = cf::freeze_mainloop;
		3413
		3414	warn "enter emergency perl save\n";
		3415
		3416	cf::sync_job {
		3417	# use a peculiar iteration method to avoid tripping on perl
		3418	# refcount bugs in for. also avoids problems with players
		3419	# and maps saved/destroyed asynchronously.
		3420	warn "begin emergency player save\n";
		3421	for my $login (keys %cf::PLAYER) {
		3422	my $pl = $cf::PLAYER{$login} or next;
		3423	$pl->valid or next;
		3424	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3425	$pl->save;
		3426	}
		3427	warn "end emergency player save\n";
		3428
		3429	warn "begin emergency map save\n";
		3430	for my $path (keys %cf::MAP) {
		3431	my $map = $cf::MAP{$path} or next;
		3432	$map->valid or next;
		3433	$map->save;
		3434	}
		3435	warn "end emergency map save\n";
		3436
		3437	warn "begin emergency database checkpoint\n";
		3438	BDB::db_env_txn_checkpoint $DB_ENV;
		3439	warn "end emergency database checkpoint\n";
		3440	};
		3441
		3442	warn "leave emergency perl save\n";
		3443	}
		3444
		3445	sub post_cleanup {
		3446	my ($make_core) = @_;
		3447
		3448	warn Carp::longmess "post_cleanup backtrace"
		3449	if $make_core;
		3450	}
		3451
2028	sub reload() {	3452	sub do_reload_perl() {
2029	# can/must only be called in main	3453	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3454	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3455	warn "can only reload from main coroutine";
2032	return;	3456	return;
2033	}	3457	}
2034		3458
2035	warn "reloading...";	3459	warn "reloading...";
2036		3460
2037	my $guard = freeze_mainloop;	3461	warn "entering sync_job";
		3462
		3463	cf::sync_job {
		3464	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	3465	cf::emergency_save;
		3466	cf::write_runtime; # external watchdog should not bark
2039		3467
2040	eval {	3468	warn "syncing database to disk";
		3469	BDB::db_env_txn_checkpoint $DB_ENV;
		3470
2041	# 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
2042		3472
2043	# cancel all watchers	3473	warn "flushing outstanding aio requests";
2044	for (Event::all_watchers) {	3474	for (;;) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3475	BDB::flush;
		3476	IO::AIO::flush;
		3477	Coro::cede_notself;
		3478	last unless IO::AIO::nreqs || BDB::nreqs;
		3479	warn "iterate...";
2046	}	3480	}
2047		3481
		3482	++$RELOAD;
		3483
2048	# cancel all extension coros	3484	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3485	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3486	%EXT_CORO = ();
2051		3487
2052	# unload all extensions	3488	warn "removing commands";
2053	for (@exts) {	3489	%COMMAND = ();
		3490
		3491	warn "removing ext/exti commands";
		3492	%EXTCMD = ();
		3493	%EXTICMD = ();
		3494
		3495	warn "unloading/nuking all extensions";
		3496	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3497	warn "... unloading $pkg";
2055	unload_extension $_;	3498
		3499	if (my $cb = $pkg->can ("unload")) {
		3500	eval {
		3501	$cb->($pkg);
		3502	1
		3503	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3504	}
2057		3505
		3506	warn "... nuking $pkg";
		3507	Symbol::delete_package $pkg;
		3508	}
		3509
2058	# unload all modules loaded from $LIBDIR	3510	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3511	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3512	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3513
2062	warn "removing <$k>";	3514	warn "... unloading $k";
2063	delete $INC{$k};	3515	delete $INC{$k};
2064		3516
2065	$k =~ s/\.pm$//;	3517	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3518	$k =~ s/\//::/g;
2067		3519
…		…
2070	}	3522	}
2071		3523
2072	Symbol::delete_package $k;	3524	Symbol::delete_package $k;
2073	}	3525	}
2074		3526
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3527	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3528	Symbol::delete_package "safe::$_"
2081	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);
2082		3530
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3531	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3532	delete $INC{"cf.pm"};
		3533	delete $INC{"cf/pod.pm"};
2088		3534
2089	# don't, removes xs symbols, too,	3535	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3536	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3537	#Symbol::delete_package __PACKAGE__;
2092		3538
2093	# reload cf.pm	3539	warn "unload completed, starting to reload now";
		3540
2094	warn "reloading cf.pm";	3541	warn "reloading cf.pm";
2095	require cf;	3542	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3543	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3544
2098	# load config and database again	3545	warn "loading config and database again";
2099	cf::cfg_load;	3546	cf::reload_config;
2100	cf::db_load;
2101		3547
2102	# load extensions
2103	warn "load extensions";	3548	warn "loading extensions";
2104	cf::load_extensions;	3549	cf::load_extensions;
2105		3550
2106	# reattach attachments to objects	3551	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3552	_global_reattach; # objects, sockets
2108	_global_reattach;	3553	warn "reattaching attachments to maps";
2109	};	3554	reattach $_ for values %MAP;
		3555	warn "reattaching attachments to players";
		3556	reattach $_ for values %PLAYER;
2110		3557
2111	if ($@) {	3558	warn "leaving sync_job";
		3559
		3560	1
		3561	} or do {
2112	warn $@;	3562	warn $@;
2113	warn "error while reloading, exiting.";	3563	warn "error while reloading, exiting.";
2114	exit 1;	3564	exit 1;
2115	}	3565	};
2116		3566
2117	warn "reloaded successfully";	3567	warn "reloaded";
2118	};	3568	};
2119		3569
2120	#############################################################################	3570	our $RELOAD_WATCHER; # used only during reload
2121		3571
2122	unless ($LINK_MAP) {	3572	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3573	# doing reload synchronously and two reloads happen back-to-back,
		3574	# coro crashes during coro_state_free->destroy here.
2124		3575
2125	$LINK_MAP->width (41);	3576	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2126	$LINK_MAP->height (41);	3577	do_reload_perl;
2127	$LINK_MAP->alloc;	3578	undef $RELOAD_WATCHER;
2128	$LINK_MAP->path ("{link}");	3579	};
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,
2135	cb => sub {
2136	$_[0]->w->cancel;
2137
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});
2156
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3580	}
2162
2163	register "<global>", __PACKAGE__;
2164		3581
2165	register_command "reload" => sub {	3582	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3583	my ($who, $arg) = @_;
2167		3584
2168	if ($who->flag (FLAG_WIZ)) {	3585	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3586	$who->message ("reloading server.");
		3587	async {
		3588	$Coro::current->{desc} = "perl_reload";
		3589	reload_perl;
		3590	};
2172	}	3591	}
2173	};	3592	};
2174		3593
2175	unshift @INC, $LIBDIR;	3594	unshift @INC, $LIBDIR;
2176		3595
2177	$TICK_WATCHER = Event->timer (	3596	my $bug_warning = 0;
2178	reentrant => 0,	3597
2179	prio => 0,	3598	our @WAIT_FOR_TICK;
2180	at => $NEXT_TICK || $TICK,	3599	our @WAIT_FOR_TICK_BEGIN;
2181	data => WF_AUTOCANCEL,	3600
2182	cb => sub {	3601	sub wait_for_tick {
		3602	return unless $TICK_WATCHER->is_active;
		3603	return if $Coro::current == $Coro::main;
		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 {
		3620	if ($Coro::current != $Coro::main) {
		3621	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3622	unless ++$bug_warning > 10;
		3623	return;
		3624	}
		3625
		3626	$NOW = $tick_start = EV::now;
		3627
2183	cf::server_tick; # one server iteration	3628	cf::server_tick; # one server iteration
		3629
2184	$RUNTIME += $TICK;	3630	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3631	$NEXT_TICK = $_[0]->at;
2186		3632
2187	# if we are delayed by four ticks or more, skip them all	3633	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3634	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2189		3635	Coro::async_pool {
2190	$TICK_WATCHER->at ($NEXT_TICK);	3636	$Coro::current->{desc} = "runtime saver";
2191	$TICK_WATCHER->start;
2192	},
2193	);
2194
2195	IO::AIO::max_poll_time $TICK * 0.2;
2196
2197	Event->io (
2198	fd => IO::AIO::poll_fileno,
2199	poll => 'r',
2200	prio => 5,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,
2207	after => 0,
2208	interval => 10,
2209	cb => sub {
2210	(Coro::unblock_sub {
2211	write_runtime	3637	write_runtime
2212	or warn "ERROR: unable to write runtime file: $!";	3638	or warn "ERROR: unable to write runtime file: $!";
2213	})->();	3639	};
2214	},	3640	}
2215	);	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);
		3655
		3656	{
		3657	# configure BDB
		3658
		3659	BDB::min_parallel 8;
		3660	BDB::max_poll_reqs $TICK * 0.1;
		3661	$Coro::BDB::WATCHER->priority (1);
		3662
		3663	unless ($DB_ENV) {
		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);
		3669
		3670	cf::sync_job {
		3671	eval {
		3672	BDB::db_env_open
		3673	$DB_ENV,
		3674	$BDBDIR,
		3675	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3676	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3677	0666;
		3678
		3679	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3680	};
		3681
		3682	cf::cleanup "db_env_open(db): $@" if $@;
		3683	};
		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	};
		3695	}
		3696
		3697	{
		3698	# configure IO::AIO
		3699
		3700	IO::AIO::min_parallel 8;
		3701	IO::AIO::max_poll_time $TICK * 0.1;
		3702	$Coro::AIO::WATCHER->priority (1);
		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;
2216		3747
2217	END { cf::emergency_save }	3748	END { cf::emergency_save }
2218		3749
2219	1	3750	1
2220		3751

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