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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 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 $FREEZE;	94	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	95
56	our %EXT_CORO;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
106		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
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	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#?
127		210
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		218
135	# 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
136	# within the Safe compartment.	220	# within the Safe compartment.
137	for my $pkg (qw(	221	for my $pkg (qw(
138	cf::global cf::attachable	222	cf::global cf::attachable
…		…
143	)) {	227	)) {
144	no strict 'refs';	228	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	230	}
147		231
148	$Event::DIED = sub {	232	$EV::DIED = sub {
149	warn "error in event callback: @_";	233	warn "error in event callback: @_";
150	};	234	};
151		235
152	my %ext_pkg;	236	#############################################################################
153	my @exts;
154	my @hook;
155		237
156	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
157		239
158	=over 4	240	=over 4
159		241
160	=cut	242	=item dumpval $ref
161		243
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	244	=cut
163		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
164	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
165		266
166	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
167		268
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
176		270
177	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
178		272
179	=cut	273	=cut
180		274
181	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
183	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
		278	sub decode_json($) { $json_coder->decode ($_[0]) }
		279
		280	=item cf::lock_wait $string
		281
		282	Wait until the given lock is available. See cf::lock_acquire.
		283
		284	=item my $lock = cf::lock_acquire $string
		285
		286	Wait until the given lock is available and then acquires it and returns
		287	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		288	for example when the coroutine gets canceled), the lock is automatically
		289	returned.
		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
		294	Lock names should begin with a unique identifier (for example, cf::map::find
		295	uses map_find and cf::map::load uses map_load).
		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
		301	=cut
		302
		303	our %LOCK;
		304	our %LOCKER;#d#
		305
		306	sub lock_wait($) {
		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#
		313
		314	# wait for lock, if any
		315	while ($LOCK{$key}) {
		316	push @{ $LOCK{$key} }, $Coro::current;
		317	Coro::schedule;
		318	}
184	}	319	}
		320
		321	sub lock_acquire($) {
		322	my ($key) = @_;
		323
		324	# wait, to be sure we are not locked
		325	lock_wait $key;
		326
		327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
		329
		330	Coro::guard {
		331	delete $LOCKER{$key};#d#
		332	# wake up all waiters, to be on the safe side
		333	$_->ready for @{ delete $LOCK{$key} };
		334	}
		335	}
		336
		337	sub lock_active($) {
		338	my ($key) = @_;
		339
		340	! ! $LOCK{$key}
		341	}
		342
		343	sub freeze_mainloop {
		344	return unless $TICK_WATCHER->is_active;
		345
		346	my $guard = Coro::guard {
		347	$TICK_WATCHER->start;
		348	};
		349	$TICK_WATCHER->stop;
		350	$guard
		351	}
		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	$sig->wait;
		424	}
		425
		426	=item cf::async { BLOCK }
		427
		428	Currently the same as Coro::async_pool, meaning you cannot use
		429	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		430	thing you are allowed to do is call C<prio> on it.
		431
		432	=cut
		433
		434	BEGIN { *async = \&Coro::async_pool }
185		435
186	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
187		437
188	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
191		442
192	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
195	fast or be very important.	446	fast or be very important.
…		…
198		449
199	sub sync_job(&) {	450	sub sync_job(&) {
200	my ($job) = @_;	451	my ($job) = @_;
201		452
202	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
203	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
205		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
206	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	462	# (but this is cancel-safe)
208	local $FREEZE = 1;	463	my $freeze_guard = freeze_mainloop;
209		464
210	my $busy = 1;	465	my $busy = 1;
211	my @res;	466	my @res;
212		467
213	(Coro::async {	468	(async {
		469	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	470	@res = eval { $job->() };
215	warn $@ if $@;	471	warn $@ if $@;
216	undef $busy;	472	undef $busy;
217	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
218		474
219	while ($busy) {	475	while ($busy) {
		476	if (Coro::nready) {
220	Coro::cede_notself;	477	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
222	}	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
223		489
224	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
225	} else {	491	} else {
226	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
227		493
228	$job->()	494	$job->()
229	}	495	}
230	}	496	}
231		497
232	=item $coro = cf::coro { BLOCK }	498	=item $coro = cf::async_ext { BLOCK }
233		499
234	Creates and returns a new coro. This coro is automcatially being canceled	500	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	501	extension calling this is being unloaded.
236		502
237	=cut	503	=cut
238		504
239	sub coro(&) {	505	sub async_ext(&) {
240	my $cb = shift;	506	my $cb = shift;
241		507
242	my $coro; $coro = async {	508	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		509
249	$coro->on_destroy (sub {	510	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	511	delete $EXT_CORO{$coro+0};
251	});	512	});
252	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
253		514
254	$coro	515	$coro
255	}	516	}
256		517
257	sub write_runtime {	518	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		519
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	520	Executes the given code block with the given arguments in a seperate
261	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.
262		524
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	525	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		526
267	aio_fsync $fh	527	sub fork_call(&@) {
268	and return;	528	my ($cb, @args) = @_;
269		529
270	close $fh	530	# we seemingly have to make a local copy of the whole thing,
271	or return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
272		533
273	aio_rename "$runtime~", $runtime	534	my @res = Coro::Util::fork_eval {
274	and return;	535	reset_signals;
		536	&$cb
		537	}, @args;
275		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($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
276	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		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 => $type });
277	}	678	}
278		679
279	=back	680	=back
280		681
281	=cut	682	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		683
403	#############################################################################	684	#############################################################################
404		685
405	=head2 ATTACHABLE OBJECTS	686	=head2 ATTACHABLE OBJECTS
406		687
…		…
408	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")
409	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
410		691
411	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>
412	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
413	crossfire+).	694	Deliantra).
414		695
415	=over 4	696	=over 4
416		697
417	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
418		699
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	813	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	814	our @CB_MAP = ();
534		815
535	my %attachment;	816	my %attachment;
536		817
		818	sub cf::attachable::thawer_merge {
		819	# simply override everything except _meta
		820	local $_[0]{_meta};
		821	%{$_[0]} = %{$_[1]};
		822	}
		823
537	sub _attach_cb($$$$) {	824	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	825	my ($registry, $event, $prio, $cb) = @_;
539		826
540	use sort 'stable';	827	use sort 'stable';
541		828
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
576		863
577	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		868
582	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	870	my $pkg = shift @arg;
584		871
585	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
615	}	902	}
616		903
617	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
618	} else {	905	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	907	}
621		908
622	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
623	}	910	}
624		911
…		…
626	if (ref $_[0]) {	913	if (ref $_[0]) {
627	_object_attach @_;	914	_object_attach @_;
628	} else {	915	} else {
629	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
630	}	917	}
		918	_recalc_want;
631	};	919	};
632		920
633	# all those should be optimised	921	# all those should be optimised
634	sub cf::attachable::detach {	922	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
639	reattach ($obj);	927	reattach ($obj);
640	} else {	928	} else {
641	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
642	}	930	}
		931	_recalc_want;
643	};	932	};
644		933
645	sub cf::attachable::attached {	934	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
647		936
…		…
662	";	951	";
663	die if $@;	952	die if $@;
664	}	953	}
665		954
666	our $override;	955	our $override;
667	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?
668		957
669	sub override {	958	sub override {
670	$override = 1;	959	$override = 1;
671	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
672	}	961	}
673		962
674	sub do_invoke {	963	sub do_invoke {
675	my $event = shift;	964	my $event = shift;
676	my $callbacks = shift;	965	my $callbacks = shift;
677		966
678	@invoke_results = ();	967	@INVOKE_RESULTS = ();
679		968
680	local $override;	969	local $override;
681		970
682	for (@$callbacks) {	971	for (@$callbacks) {
683	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
692	}	981	}
693		982
694	0	983	0
695	}	984	}
696		985
697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
698		987
699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
700		989
701	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
702		991
703	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
704	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
705	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		995
707	=back	996	=back
708		997
709	=cut	998	=cut
710		999
711	#############################################################################	1000	#############################################################################
712	# 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	}
713		1044
714	sub reattach {	1045	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1047	my ($obj) = @_;
		1048
		1049	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1050
718	my $registry = $obj->registry;	1051	my $registry = $obj->registry;
719		1052
720	@$registry = ();	1053	@$registry = ();
721		1054
…		…
736	cf::attachable->attach (	1069	cf::attachable->attach (
737	prio => -1000000,	1070	prio => -1000000,
738	on_instantiate => sub {	1071	on_instantiate => sub {
739	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
740		1073
741	$data = from_json $data;	1074	$data = decode_json $data;
742		1075
743	for (@$data) {	1076	for (@$data) {
744	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
745		1078
746	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1095	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
764		1097
765	sync_job {	1098	sync_job {
766	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
769		1103
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	1107	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1108	close $fh;
775		1109
776	if (@$objs) {	1110	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1115	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1116	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
784	}	1118	}
785	} else {	1119	} else {
786	aio_unlink "$filename.pst";	1120	aio_unlink "$filename.pst";
…		…
792	}	1126	}
793	} else {	1127	} else {
794	aio_unlink $filename;	1128	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
796	}	1130	}
797	}	1131	};
798	}	1132	}
799		1133
800	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
802		1136
…		…
814	or return;	1148	or return;
815		1149
816	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
818	or return;	1152	or return;
		1153
819	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
820	}	1156	}
821		1157
		1158	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
824	return ($data, $av);	1162	($data, $av)
825	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
826		1170
827	#############################################################################	1171	#############################################################################
828	# command handling &c	1172	# command handling &c
829		1173
830	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1188	}
845		1189
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1191
848	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.
849		1197
850	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
851	called.	1199	called.
852		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
853	=cut	1212	=cut
854		1213
855	sub register_extcmd {	1214	sub register_extcmd {
856	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
857		1216
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
862	}	1224	}
863		1225
864	cf::player->attach (	1226	cf::player->attach (
865	on_command => sub {	1227	on_command => sub {
866	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1237	cf::override;
876	},	1238	},
877	on_extcmd => sub {	1239	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
879		1241
880	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1243
882	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
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
885	$pl->ext_reply ($msg->{msgid}, %reply);
886	}
887	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
888	} else {	1259	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
890	}	1261	}
891		1262
892	cf::override;	1263	cf::override;
893	},	1264	},
894	);	1265	);
895		1266
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	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($) {
903	my ($path) = @_;	1706	my ($path) = @_;
904		1707
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1708	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1709
911	warn "loading '$path' into '$pkg'\n";	1710	for my $region (list) {
912		1711	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1712	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1713	if $region->specificity > $specificity;
915		1714	}
916	my $source =
917	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })
920	. "\n};\n1";
921
922	eval $source
923	or die $@ ? "$path: $@\n"
924	: "extension disabled.\n";
925
926	push @exts, $pkg;
927	$ext_pkg{$base} = $pkg;
928
929	# no strict 'refs';
930	# @{"$pkg\::ISA"} = ext::;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	1715	}
945		1716
946	# remove commands	1717	$match
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}
971
972	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;
975	eval {
976	load_extension $ext;
977	1
978	} or warn "$ext not loaded: $@";
979	}
980	}
981
982	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019
1020	=head2 CORE EXTENSIONS
1021
1022	Functions and methods that extend core crossfire objects.
1023
1024	=head3 cf::player
1025
1026	=over 4
1027
1028	=item cf::player::exists $login
1029
1030	Returns true when the given account exists.
1031
1032	=cut
1033
1034	sub cf::player::exists($) {
1035	cf::player::find $_[0]
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1037	}
1038
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)
1040
1041	Sends an ext reply to the player.
1042
1043	=cut
1044
1045	sub cf::player::ext_reply($$$%) {
1046	my ($self, $id, %msg) = @_;
1047
1048	$msg{msgid} = $id;
1049
1050	$self->send ("ext " . to_json \%msg);
1051	}	1718	}
1052		1719
1053	=back	1720	=back
1054
1055		1721
1056	=head3 cf::map	1722	=head3 cf::map
1057		1723
1058	=over 4	1724	=over 4
1059		1725
…		…
1062	package cf::map;	1728	package cf::map;
1063		1729
1064	use Fcntl;	1730	use Fcntl;
1065	use Coro::AIO;	1731	use Coro::AIO;
1066		1732
		1733	use overload
		1734	'""' => \&as_string,
		1735	fallback => 1;
		1736
1067	our $MAX_RESET = 7200;	1737	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1738	our $DEFAULT_RESET = 3000;
1069		1739
1070	sub generate_random_map {	1740	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1741	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1742	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1743	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1744	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1745	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1746	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1747	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1748	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1749	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1750	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1751	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$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},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1753	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(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"
1087	}	1883	}
1088		1884
1089	# and all this just because we cannot iterate over	1885	# and all this just because we cannot iterate over
1090	# all maps in C++...	1886	# all maps in C++...
1091	sub change_all_map_light {	1887	sub change_all_map_light {
1092	my ($change) = @_;	1888	my ($change) = @_;
1093		1889
1094	$_->change_map_light ($change) for values %cf::MAP;	1890	$_->change_map_light ($change)
		1891	for grep $_->outdoor, values %cf::MAP;
1095	}	1892	}
1096		1893
		1894	sub decay_objects {
		1895	my ($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
1097	sub try_load_header($) {	1910	sub load_header_from($) {
1098	my ($path) = @_;	1911	my ($self, $path) = @_;
1099		1912
1100	utf8::encode $path;	1913	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1914	my $f = new_from_file cf::object::thawer $path
1102	or return;	1915	or return;
1103		1916
1104	my $map = cf::map::new	1917	$self->_load_header ($f)
1105	or return;	1918	or return;
1106		1919
1107	$map->load_header ($path)	1920	local $MAP_LOADING{$self->{path}} = $self;
		1921	$f->resolve_delayed_derefs;
		1922
		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
1108	or return;	1966	or return;
		1967	$self->prepare_orig;
		1968	}
1109		1969
1110	$map->{load_path} = $path;	1970	$self->{deny_reset} = 1
		1971	if $self->no_reset;
1111		1972
1112	$map	1973	$self->default_region (cf::region::find_by_path $self->{path})
1113	}	1974	unless $self->default_region;
1114		1975
		1976	1
		1977	}
		1978
		1979	sub find;
1115	sub find_map {	1980	sub find {
1116	my ($path, $origin) = @_;	1981	my ($path, $origin) = @_;
1117		1982
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1983	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1984
		1985	cf::lock_wait "map_data:$path";#d#remove
		1986	cf::lock_wait "map_find:$path";
		1987
1123	$cf::MAP{$key} || do {	1988	$cf::MAP{$path} || do {
1124	# do it the slow way	1989	my $guard1 = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1990	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1126		1991
1127	if ($map) {	1992	my $map = new_from_path cf::map $path
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1993	or return;
1139		1994
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1995	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1996
1154	if ($map->should_reset) {	1997	$map->load_header
		1998	or return;
		1999
		2000	if ($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;
1155	$map->reset;	2005	$map->reset;
1156	$map = find_map $path;	2006	return find $path;
1157	}	2007	}
1158		2008
1159	$cf::MAP{$key} = $map	2009	$cf::MAP{$path} = $map
1160	}	2010	}
1161	}	2011	}
		2012
		2013	sub pre_load { }
		2014	sub post_load { }
1162		2015
1163	sub load {	2016	sub load {
1164	my ($self) = @_;	2017	my ($self) = @_;
1165		2018
1166	return if $self->in_memory != cf::MAP_SWAPPED;	2019	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		2020
1170	my $path = $self->{path};	2021	my $path = $self->{path};
1171		2022
		2023	{
		2024	my $guard = cf::lock_acquire "map_data:$path";
		2025
		2026	return unless $self->valid;
		2027	return unless $self->in_memory == cf::MAP_SWAPPED;
		2028
		2029	$self->in_memory (cf::MAP_LOADING);
		2030
1172	$self->alloc;	2031	$self->alloc;
1173	$self->load_objects ($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)
1174	or return;	2039	or return;
1175		2040
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2041	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	2042	if delete $self->{load_original};
1178		2043
1179	if (my $uniq = $path->uniq_path) {	2044	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	2045	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	2046	unless (aio_stat $uniq) {
		2047	if (my $f = new_from_file cf::object::thawer $uniq) {
1182	$self->clear_unique_items;	2048	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	2049	$self->_load_objects ($f);
		2050	$f->resolve_delayed_derefs;
		2051	}
1184	}	2052	}
1185	}	2053	}
1186		2054
		2055	$f->resolve_delayed_derefs;
		2056
		2057	cf::cede_to_tick;
1187	# now do the right thing for maps	2058	# now do the right thing for maps
1188	$self->link_multipart_objects;	2059	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	2060	$self->difficulty ($self->estimate_difficulty)
1199	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;
1200	$self->activate;	2071	$self->activate;
1201	}	2072	}
1202		2073
		2074	$self->{last_save} = $cf::RUNTIME;
		2075	$self->last_access ($cf::RUNTIME);
		2076
1203	$self->in_memory (cf::MAP_IN_MEMORY);	2077	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	2078	}
1205		2079
1206	sub load_map_sync {	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	$neigh->load;
		2118	}
		2119	}
		2120
		2121	sub find_sync {
1207	my ($path, $origin) = @_;	2122	my ($path, $origin) = @_;
1208		2123
1209	#warn "load_map_sync<$path, $origin>\n";#d#	2124	cf::sync_job { find $path, $origin }
		2125	}
1210		2126
1211	cf::sync_job {	2127	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	2128	my ($map) = @_;
1213	or return;	2129
1214	$map->load;	2130	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1215	$map	2131	if $Coro::current == $Coro::main;
		2132
		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;
1216	}	2163	};
		2164	$MAP_PREFETCHER->prio (6);
		2165
		2166	()
1217	}	2167	}
1218		2168
1219	sub save {	2169	sub save {
1220	my ($self) = @_;	2170	my ($self) = @_;
1221		2171
		2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2173
1222	$self->{last_save} = $cf::RUNTIME;	2174	$self->{last_save} = $cf::RUNTIME;
1223		2175
1224	return unless $self->dirty;	2176	return unless $self->dirty;
1225		2177
1226	my $save = $self->{path}->save_path; utf8::encode $save;	2178	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2179	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		2180
1229	$self->{load_path} = $save;	2181	$self->{load_path} = $save;
1230		2182
1231	return if $self->{deny_save};	2183	return if $self->{deny_save};
1232		2184
		2185	local $self->{last_access} = $self->last_access;#d#
		2186
		2187	cf::async {
		2188	$Coro::current->{desc} = "map player save";
		2189	$_->contr->save for $self->players;
		2190	};
		2191
1233	if ($uniq) {	2192	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2193	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	2194	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	2195	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2196	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	2197	}
1239	}	2198	}
1240		2199
1241	sub swap_out {	2200	sub swap_out {
1242	my ($self) = @_;	2201	my ($self) = @_;
		2202
		2203	# save first because save cedes
		2204	$self->save;
		2205
		2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1243		2207
1244	return if $self->players;	2208	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	2209	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	2210	return if $self->{deny_save};
1247		2211
		2212	$self->in_memory (cf::MAP_SWAPPED);
		2213
1248	$self->save;	2214	$self->deactivate;
		2215	$_->clear_links_to ($self) for values %cf::MAP;
1249	$self->clear;	2216	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);
1251	}	2217	}
1252		2218
1253	sub reset_at {	2219	sub reset_at {
1254	my ($self) = @_;	2220	my ($self) = @_;
1255		2221
1256	# TODO: safety, remove and allow resettable per-player maps	2222	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	2223	return 1e99 if $self->{deny_reset};
1259		2224
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2225	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2226	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		2227
…		…
1267	my ($self) = @_;	2232	my ($self) = @_;
1268		2233
1269	$self->reset_at <= $cf::RUNTIME	2234	$self->reset_at <= $cf::RUNTIME
1270	}	2235	}
1271		2236
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	2237	sub reset {
1294	my ($self) = @_;	2238	my ($self) = @_;
1295		2239
		2240	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2241
1296	return if $self->players;	2242	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2243
1299	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	}
1300		2255
1301	delete $cf::MAP{$self->path};	2256	delete $cf::MAP{$self->path};
1302		2257
		2258	$self->deactivate;
1303	$_->clear_links_to ($self) for values %cf::MAP;	2259	$_->clear_links_to ($self) for values %cf::MAP;
		2260	$self->clear;
1304		2261
1305	$self->unlink_save;	2262	$self->unlink_save;
1306	$self->destroy;	2263	$self->destroy;
1307	}	2264	}
1308		2265
1309	my $nuke_counter = "aaaa";	2266	my $nuke_counter = "aaaa";
1310		2267
1311	sub nuke {	2268	sub nuke {
1312	my ($self) = @_;	2269	my ($self) = @_;
1313		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};
1314	$self->{deny_save} = 1;	2280	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2281	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2282	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2283
		2284	$cf::MAP{$self->path} = $self;
		2285	}
		2286
1317	$self->reset; # polite request, might not happen	2287	$self->reset; # polite request, might not happen
1318	}	2288	}
1319		2289
1320	sub customise_for {	2290	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2291
1323	if ($map->per_player) {	2292	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2293	maps. May block.
		2294
		2295	=cut
		2296
		2297	sub tmp_maps() {
1325	}	2298	[
1326		2299	map {
1327	$map	2300	utf8::decode $_;
		2301	/\.map$/
		2302	? normalise $_
		2303	: ()
		2304	} @{ aio_readdir $TMPDIR or [] }
		2305	]
1328	}	2306	}
1329		2307
1330	sub emergency_save {	2308	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2309
1333	warn "enter emergency map save\n";	2310	Returns an arrayref with all map paths of currently instantiated and saved
		2311	random maps. May block.
1334		2312
1335	cf::sync_job {	2313	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2314
1340	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	]
1341	}	2342	}
1342		2343
1343	package cf;	2344	package cf;
1344		2345
1345	=back	2346	=back
1346		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
1347		2402
1348	=head3 cf::object::player	2403	=head3 cf::object::player
1349		2404
1350	=over 4	2405	=over 4
1351		2406
…		…
1365		2420
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2421	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2422
1368	if ($self->{record_replies}) {	2423	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2424	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2425
1370	} 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 {
1371	$msg = $npc->name . " says: $msg" if $npc;	2434	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2435	$self->message ($msg, $flags);
		2436	}
1373	}	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 (@_);
1374	}	2448	}
1375		2449
1376	=item $player_object->may ("access")	2450	=item $player_object->may ("access")
1377		2451
1378	Returns wether the given player is authorized to access resource "access"	2452	Returns wether the given player is authorized to access resource "access"
…		…
1391		2465
1392	=item $player_object->enter_link	2466	=item $player_object->enter_link
1393		2467
1394	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}>).
1395		2469
1396	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
1397	I<MUST> call C<leave_link> as soon as possible, though.	2471	I<MUST> call C<leave_link> as soon as possible, though.
1398		2472
		2473	Will never block.
		2474
1399	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1400		2476
1401	Moves the player out of the specila link map onto the given map. If the	2477	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2478	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2479	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2480	fails, to the emergency map position.
1405		2481
1406	Might block.	2482	Might block.
1407		2483
1408	=cut	2484	=cut
		2485
		2486	sub link_map {
		2487	unless ($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	$LINK_MAP
		2494	}
1409		2495
1410	sub cf::object::player::enter_link {	2496	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2497	my ($self) = @_;
1412		2498
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
		2500
		2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2502
		2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2504	if $self->map && $self->map->{path} ne "{link}";
		2505
		2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2507	}
1421		2508
1422	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1424		2513
1425	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1426		2515
1427	unless ($map) {	2516	unless ($map) {
1428	# restore original map position	2517	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2518	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2519	$map = cf::map::find $map;
1431		2520
1432	unless ($map) {	2521	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2522	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2523	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2524	or die "FATAL: cannot load emergency map\n";
1436	}	2525	}
1437	}	2526	}
1438		2527
1439	($x, $y) = (-1, -1)	2528	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1445		2534
1446	$map->load;	2535	$map->load;
		2536	$map->load_neighbours;
1447		2537
		2538	return unless $self->contr->active;
1448	$self->activate_recursive;	2539	$self->activate_recursive;
		2540
		2541	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2542	$self->enter_map ($map, $x, $y);
1450	}	2543	}
1451		2544
1452	=item $player_object->goto_map ($path, $x, $y)	2545	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1453		2546
1454	=cut	2547	Moves the player to the given map-path and coordinates by first freezing
		2548	her, loading and preparing them map, calling the provided $check callback
		2549	that has to return the map if sucecssful, and then unfreezes the player on
		2550	the new (success) or old (failed) map position. In either case, $done will
		2551	be called at the end of this process.
1455		2552
		2553	=cut
		2554
		2555	our $GOTOGEN;
		2556
1456	sub cf::object::player::goto_map {	2557	sub cf::object::player::goto {
1457	my ($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;
1458		2562
1459	$self->enter_link;	2563	$self->enter_link;
1460		2564
1461	(Coro::async {	2565	(async {
1462	$path = new cf::path $path;	2566	$Coro::current->{desc} = "player::goto $path $x $y";
1463		2567
1464	my $map = cf::map::find_map $path->as_string;	2568	# *tag paths override both path and x|y
		2569	if ($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) {
1465	$map = $map->customise_for ($self) if $map;	2591	$map = $map->customise_for ($self);
1466		2592	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	2593	} else {
1468	# if $map;
1469
1470	$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	}
1471		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};
1472	$self->leave_link ($map, $x, $y);	2607	$self->leave_link ($map, $x, $y);
		2608	}
		2609
		2610	$done->() if $done;
1473	})->prio (1);	2611	})->prio (1);
1474	}	2612	}
1475		2613
1476	=item $player_object->enter_exit ($exit_object)	2614	=item $player_object->enter_exit ($exit_object)
1477		2615
…		…
1479		2617
1480	sub parse_random_map_params {	2618	sub parse_random_map_params {
1481	my ($spec) = @_;	2619	my ($spec) = @_;
1482		2620
1483	my $rmp = { # defaults	2621	my $rmp = { # defaults
1484	xsize => 10,	2622	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2623	ysize => (cf::rndm 15, 40),
		2624	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2625	#layout => string,
1486	};	2626	};
1487		2627
1488	for (split /\n/, $spec) {	2628	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2629	my ($k, $v) = split /\s+/, $_, 2;
1490		2630
…		…
1494	$rmp	2634	$rmp
1495	}	2635	}
1496		2636
1497	sub prepare_random_map {	2637	sub prepare_random_map {
1498	my ($exit) = @_;	2638	my ($exit) = @_;
		2639
		2640	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2641
1500	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2644	# that depends on the exit object
1503		2645
1504	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
1505		2647
1506	if ($exit->map) {	2648	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2649	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
1511	}	2653	}
1512		2654
1513	$rmp->{random_seed} ||= $exit->random_seed;	2655	$rmp->{random_seed} ||= $exit->random_seed;
1514		2656
1515	my $data = cf::to_json $rmp;	2657	my $data = cf::encode_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2658	my $md5 = Digest::MD5::md5_hex $data;
		2659	my $meta = "$RANDOMDIR/$md5.meta";
1517		2660
1518	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) {
1519	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;
1520		2665
1521	$exit->slaying ("?random/$md5");	2666	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2667	$exit->msg (undef);
1523	}	2668	}
1524	}	2669	}
…		…
1526	sub cf::object::player::enter_exit {	2671	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2672	my ($self, $exit) = @_;
1528		2673
1529	return unless $self->type == cf::PLAYER;	2674	return unless $self->type == cf::PLAYER;
1530		2675
		2676	if ($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
1531	$self->enter_link;	2687	$self->enter_link;
1532		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
1533	(Coro::async {	2693	(async {
		2694	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2695
		2696	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2697	unless (eval {
1535		2698	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2699
1542	1;	2700	1;
1543	}) {	2701	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2702	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "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. "
1546	. "Please report this to the dungeon master",	2704	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2705	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2706
1549	warn "ERROR in enter_exit: $@";	2707	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2708	$self->leave_link;
1551	}	2709	}
1552	})->prio (1);	2710	})->prio (1);
…		…
1565		2723
1566	sub cf::client::send_drawinfo {	2724	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2725	my ($self, $text, $flags) = @_;
1568		2726
1569	utf8::encode $text;	2727	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2728	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2729	}
1572		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	}
1573		2889
1574	=item $success = $client->query ($flags, "text", \&cb)	2890	=item $success = $client->query ($flags, "text", \&cb)
1575		2891
1576	Queues a query to the client, calling the given callback with	2892	Queues a query to the client, calling the given callback with
1577	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>,
1578	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>.
1579		2895
1580	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
1581	reliable at some point in the future.	2897	become reliable at some point in the future.
1582		2898
1583	=cut	2899	=cut
1584		2900
1585	sub cf::client::query {	2901	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2902	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2910	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2911	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2912
1597	$self->send_packet ($self->{query_queue}[0][0])	2913	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2914	if @{ $self->{query_queue} } == 1;
		2915
		2916	1
1599	}	2917	}
1600		2918
1601	cf::client->attach (	2919	cf::client->attach (
		2920	on_connect => sub {
		2921	my ($ns) = @_;
		2922
		2923	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2924	},
1602	on_reply => sub {	2925	on_reply => sub {
1603	my ($ns, $msg) = @_;	2926	my ($ns, $msg) = @_;
1604		2927
1605	# this weird shuffling is so that direct followup queries	2928	# this weird shuffling is so that direct followup queries
1606	# get handled first	2929	# get handled first
1607	my $queue = delete $ns->{query_queue};	2930	my $queue = delete $ns->{query_queue}
		2931	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2932
1609	(shift @$queue)->[1]->($msg);	2933	(shift @$queue)->[1]->($msg);
		2934	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2935
1611	push @{ $ns->{query_queue} }, @$queue;	2936	push @{ $ns->{query_queue} }, @$queue;
1612		2937
1613	if (@{ $ns->{query_queue} } == @$queue) {	2938	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2939	if (@$queue) {
…		…
1616	} else {	2941	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2942	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2943	}
1619	}	2944	}
1620	},	2945	},
		2946	on_exticmd => sub {
		2947	my ($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	},
1621	);	2972	);
1622		2973
1623	=item $client->coro (\&cb)	2974	=item $client->async (\&cb)
1624		2975
1625	Create a new coroutine, running the specified callback. The coroutine will	2976	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2977	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2978	or loss of connection).
1628		2979
1629	=cut	2980	=cut
1630		2981
1631	sub cf::client::coro {	2982	sub cf::client::async {
1632	my ($self, $cb) = @_;	2983	my ($self, $cb) = @_;
1633		2984
1634	my $coro; $coro = async {	2985	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2986
1641	$coro->on_destroy (sub {	2987	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2988	delete $self->{_coro}{$coro+0};
1643	});	2989	});
1644		2990
…		…
1671	our $safe = new Safe "safe";	3017	our $safe = new Safe "safe";
1672	our $safe_hole = new Safe::Hole;	3018	our $safe_hole = new Safe::Hole;
1673		3019
1674	$SIG{FPE} = 'IGNORE';	3020	$SIG{FPE} = 'IGNORE';
1675		3021
1676	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3022	$safe->permit_only (Opcode::opset qw(
		3023	:base_core :base_mem :base_orig :base_math
		3024	grepstart grepwhile mapstart mapwhile
		3025	sort time
		3026	));
1677		3027
1678	# here we export the classes and methods available to script code	3028	# here we export the classes and methods available to script code
1679		3029
1680	=pod	3030	=pod
1681		3031
1682	The following fucntions and emthods are available within a safe environment:	3032	The following functions and methods are available within a safe environment:
1683		3033
1684	cf::object contr pay_amount pay_player map	3034	cf::object
		3035	contr pay_amount pay_player map x y force_find force_add destroy
		3036	insert remove name archname title slaying race decrease_ob_nr
		3037
1685	cf::object::player player	3038	cf::object::player
1686	cf::player peaceful	3039	player
1687	cf::map trigger	3040
		3041	cf::player
		3042	peaceful
		3043
		3044	cf::map
		3045	trigger
1688		3046
1689	=cut	3047	=cut
1690		3048
1691	for (	3049	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	3050	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3051	insert remove inv name archname title slaying race
		3052	decrease_ob_nr destroy)],
1693	["cf::object::player" => qw(player)],	3053	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	3054	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	3055	["cf::map" => qw(trigger)],
1696	) {	3056	) {
1697	no strict 'refs';	3057	no strict 'refs';
…		…
1768	=back	3128	=back
1769		3129
1770	=cut	3130	=cut
1771		3131
1772	#############################################################################	3132	#############################################################################
		3133	# the server's init and main functions
1773		3134
1774	=head2 EXTENSION DATABASE SUPPORT	3135	sub load_facedata($) {
		3136	my ($path) = @_;
1775		3137
1776	Crossfire maintains a very simple database for extension use. It can	3138	# HACK to clear player env face cache, we need some signal framework
1777	currently store anything that can be serialised using Storable, which	3139	# for this (global event?)
1778	excludes objects.	3140	%ext::player_env::MUSIC_FACE_CACHE = ();
1779		3141
1780	The parameter C<$family> should best start with the name of the extension	3142	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1781	using it, it should be unique.
1782		3143
1783	=over 4	3144	warn "loading facedata from $path\n";
1784		3145
1785	=item $hashref = cf::db_get $family	3146	my $facedata;
		3147	0 < aio_load $path, $facedata
		3148	or die "$path: $!";
1786		3149
1787	Return a hashref for use by the extension C<$family>, which can be	3150	$facedata = Coro::Storable::thaw $facedata;
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790		3151
1791	=item $value = cf::db_get $family => $key	3152	$facedata->{version} == 2
		3153	or cf::cleanup "$path: version mismatch, cannot proceed.";
1792		3154
1793	Returns a single value from the database	3155	# patch in the exptable
1794		3156	$facedata->{resource}{"res/exp_table"} = {
1795	=item cf::db_put $family => $hashref	3157	type => FT_RSRC,
1796		3158	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799
1800	=item cf::db_put $family => $key => $value
1801
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812
1813	=cut
1814
1815	our $DB;
1816
1817	{
1818	my $path = cf::localdir . "/database.pst";
1819
1820	sub db_load() {
1821	warn "loading database $path\n";#d# remove later
1822	$DB = stat $path ? Storable::retrieve $path : { };
1823	}
1824
1825	my $pid;
1826
1827	sub db_save() {
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	3159	};
		3160	cf::cede_to_tick;
1848		3161
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}	3162	{
		3163	my $faces = $facedata->{faceinfo};
1853		3164
1854	sub db_get($;$) {	3165	while (my ($face, $info) = each %$faces) {
1855	@_ >= 2	3166	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		3167
1860	sub db_put($$;$) {	3168	cf::face::set_visibility $idx, $info->{visibility};
1861	if (@_ >= 3) {	3169	cf::face::set_magicmap $idx, $info->{magicmap};
1862	$DB->{$_[0]}{$_[1]} = $_[2];	3170	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1863	} else {	3171	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868		3172
1869	cf::global->attach (	3173	cf::cede_to_tick;
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	3174	}
1874	);
1875	}
1876		3175
1877	#############################################################################	3176	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	3177	next unless $info->{smooth};
1879		3178
1880	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 {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	3321	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	3322	or return;
1883		3323
1884	local $/;	3324	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	3325	*CFG = YAML::Load <$fh>;
		3326
		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};
		3331
		3332	if (exists $CFG{mlockall}) {
		3333	eval {
		3334	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3335	and die "WARNING: m(un)lockall failed: $!\n";
		3336	};
		3337	warn $@ if $@;
		3338	}
1886	}	3339	}
1887		3340
1888	sub main {	3341	sub main {
1889	# we must not ever block the main coroutine	3342	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	3343	local $Coro::idle = sub {
1891	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#
1892	(Coro::unblock_sub {	3345	(async {
1893	Event::one_event;	3346	$Coro::current->{desc} = "IDLE BUG HANDLER";
1894	})->();	3347	EV::loop EV::LOOP_ONESHOT;
		3348	})->prio (Coro::PRIO_MAX);
1895	};	3349	};
1896		3350
1897	cfg_load;	3351	reload_config;
1898	db_load;	3352	db_init;
1899	load_extensions;	3353	load_extensions;
		3354
		3355	$TICK_WATCHER->start;
		3356	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1900	Event::loop;	3357	EV::loop;
1901	}	3358	}
1902		3359
1903	#############################################################################	3360	#############################################################################
1904	# initialisation	3361	# initialisation and cleanup
1905		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
1906	sub reload() {	3452	sub do_reload_perl() {
1907	# can/must only be called in main	3453	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	3454	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	3455	warn "can only reload from main coroutine";
1910	return;	3456	return;
1911	}	3457	}
1912		3458
1913	warn "reloading...";	3459	warn "reloading...";
1914		3460
1915	local $FREEZE = 1;	3461	warn "entering sync_job";
		3462
		3463	cf::sync_job {
		3464	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	3465	cf::emergency_save;
		3466	cf::write_runtime; # external watchdog should not bark
1917		3467
1918	eval {	3468	warn "syncing database to disk";
		3469	BDB::db_env_txn_checkpoint $DB_ENV;
		3470
1919	# 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
1920		3472
1921	# cancel all watchers	3473	warn "flushing outstanding aio requests";
1922	for (Event::all_watchers) {	3474	for (;;) {
1923	$_->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...";
1924	}	3480	}
1925		3481
		3482	++$RELOAD;
		3483
1926	# cancel all extension coros	3484	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3485	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3486	%EXT_CORO = ();
1929		3487
1930	# unload all extensions	3488	warn "removing commands";
1931	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) {
1932	warn "unloading <$_>";	3497	warn "... unloading $pkg";
1933	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: $@";
1934	}	3504	}
1935		3505
		3506	warn "... nuking $pkg";
		3507	Symbol::delete_package $pkg;
		3508	}
		3509
1936	# unload all modules loaded from $LIBDIR	3510	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3511	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3512	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3513
1940	warn "removing <$k>";	3514	warn "... unloading $k";
1941	delete $INC{$k};	3515	delete $INC{$k};
1942		3516
1943	$k =~ s/\.pm$//;	3517	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3518	$k =~ s/\//::/g;
1945		3519
…		…
1948	}	3522	}
1949		3523
1950	Symbol::delete_package $k;	3524	Symbol::delete_package $k;
1951	}	3525	}
1952		3526
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3527	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3528	Symbol::delete_package "safe::$_"
1959	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);
1960		3530
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3531	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3532	delete $INC{"cf.pm"};
		3533	delete $INC{"cf/pod.pm"};
1966		3534
1967	# don't, removes xs symbols, too,	3535	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3536	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3537	#Symbol::delete_package __PACKAGE__;
1970		3538
1971	# reload cf.pm	3539	warn "unload completed, starting to reload now";
		3540
1972	warn "reloading cf.pm";	3541	warn "reloading cf.pm";
1973	require cf;	3542	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3543	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3544
1976	# load config and database again	3545	warn "loading config and database again";
1977	cf::cfg_load;	3546	cf::reload_config;
1978	cf::db_load;
1979		3547
1980	# load extensions
1981	warn "load extensions";	3548	warn "loading extensions";
1982	cf::load_extensions;	3549	cf::load_extensions;
1983		3550
1984	# reattach attachments to objects	3551	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3552	_global_reattach; # objects, sockets
1986	_global_reattach;	3553	warn "reattaching attachments to maps";
1987	};	3554	reattach $_ for values %MAP;
		3555	warn "reattaching attachments to players";
		3556	reattach $_ for values %PLAYER;
1988		3557
1989	if ($@) {	3558	warn "leaving sync_job";
		3559
		3560	1
		3561	} or do {
1990	warn $@;	3562	warn $@;
1991	warn "error while reloading, exiting.";	3563	warn "error while reloading, exiting.";
1992	exit 1;	3564	exit 1;
1993	}	3565	};
1994		3566
1995	warn "reloaded successfully";	3567	warn "reloaded";
1996	};	3568	};
1997		3569
1998	#############################################################################	3570	our $RELOAD_WATCHER; # used only during reload
1999		3571
2000	unless ($LINK_MAP) {	3572	sub reload_perl() {
2001	$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.
2002		3575
2003	$LINK_MAP->width (41);	3576	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2004	$LINK_MAP->height (41);	3577	do_reload_perl;
2005	$LINK_MAP->alloc;	3578	undef $RELOAD_WATCHER;
2006	$LINK_MAP->path ("{link}");	3579	};
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,
2013	cb => sub {
2014	$_[0]->w->cancel;
2015
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});
2034
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3580	}
2040
2041	register "<global>", __PACKAGE__;
2042		3581
2043	register_command "reload" => sub {	3582	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3583	my ($who, $arg) = @_;
2045		3584
2046	if ($who->flag (FLAG_WIZ)) {	3585	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3586	$who->message ("reloading server.");
		3587	async {
		3588	$Coro::current->{desc} = "perl_reload";
		3589	reload_perl;
		3590	};
2050	}	3591	}
2051	};	3592	};
2052		3593
2053	unshift @INC, $LIBDIR;	3594	unshift @INC, $LIBDIR;
2054		3595
2055	$TICK_WATCHER = Event->timer (	3596	my $bug_warning = 0;
2056	reentrant => 0,	3597
2057	prio => 0,	3598	our @WAIT_FOR_TICK;
2058	at => $NEXT_TICK || $TICK,	3599	our @WAIT_FOR_TICK_BEGIN;
2059	data => WF_AUTOCANCEL,	3600
2060	cb => sub {	3601	sub wait_for_tick {
2061	unless ($FREEZE) {	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
2062	cf::server_tick; # one server iteration	3628	cf::server_tick; # one server iteration
		3629
2063	$RUNTIME += $TICK;	3630	$RUNTIME += $TICK;
2064	}	3631	$NEXT_TICK = $_[0]->at;
2065		3632
2066	$NEXT_TICK += $TICK;	3633	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2067		3634	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2068	# if we are delayed by four ticks or more, skip them all	3635	Coro::async_pool {
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$Coro::current->{desc} = "runtime saver";
2070
2071	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;
2073	},
2074	);
2075
2076	IO::AIO::max_poll_time $TICK * 0.2;
2077
2078	Event->io (
2079	fd => IO::AIO::poll_fileno,
2080	poll => 'r',
2081	prio => 5,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,
2088	after => 0,
2089	interval => 10,
2090	cb => sub {
2091	(Coro::unblock_sub {
2092	write_runtime	3637	write_runtime
2093	or warn "ERROR: unable to write runtime file: $!";	3638	or warn "ERROR: unable to write runtime file: $!";
2094	})->();	3639	};
2095	},	3640	}
2096	);	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;
		3747
		3748	END { cf::emergency_save }
2097		3749
2098	1	3750	1
2099		3751

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