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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.411 by root, Fri Feb 1 15:54:07 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 ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
		32	use YAML ();
23	use IO::AIO 2.32 ();	33	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	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
		43
		44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		45
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
36	our %COMMAND = ();	48	our %COMMAND = ();
37	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
38		50
39	our @EXTS = (); # list of extension package names	51	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
43		56
		57	our $RELOAD; # number of reloads so far
44	our @EVENT;	58	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		59
47	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(!)
48	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	77	our $NEXT_TICK;
50	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;
51		85
52	our %CFG;	86	our %CFG;
53		87
54	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
56		91
57	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		95
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
64		102
65	binmode STDOUT;	103	binmode STDOUT;
66	binmode STDERR;	104	binmode STDERR;
67		105
68	# read virtual server time, if available	106	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
73	}	111	}
74		112
75	mkdir cf::localdir;	113	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		115
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
84		119
85	#############################################################################	120	#############################################################################
86		121
87	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
88		123
…		…
95	=item $cf::RUNTIME	130	=item $cf::RUNTIME
96		131
97	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
98	every server tick.	133	every server tick.
99		134
100	=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
101		138
102	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		143
105	=item $cf::NOW	144	=item $cf::NOW
106		145
107	The time of the last (current) server tick.	146	The time of the last (current) server tick.
108		147
109	=item $cf::TICK	148	=item $cf::TICK
110		149
111	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
112		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
113	=item %cf::CFG	162	=item %cf::CFG
114		163
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	165	from wherever your confdir points to.
117		166
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		168
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	170	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
124		178
125	=back	179	=back
126		180
127	=cut	181	=cut
128		182
129	BEGIN {	183	BEGIN {
130	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	185	my $msg = join "", @_;
132	utf8::encode $msg;
133		186
134	$msg .= "\n"	187	$msg .= "\n"
135	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
136		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
137	LOG llevError, $msg;	192	LOG llevError, $msg;
138	};	193	};
139	}	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#?
140		210
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	211	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	212	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	213	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	214	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		218
148	# 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
149	# within the Safe compartment.	220	# within the Safe compartment.
150	for my $pkg (qw(	221	for my $pkg (qw(
151	cf::global cf::attachable	222	cf::global cf::attachable
…		…
156	)) {	227	)) {
157	no strict 'refs';	228	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	229	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	230	}
160		231
161	$Event::DIED = sub {	232	$EV::DIED = sub {
162	warn "error in event callback: @_";	233	warn "error in event callback: @_";
163	};	234	};
		235
		236	#############################################################################
164		237
165	=head2 UTILITY FUNCTIONS	238	=head2 UTILITY FUNCTIONS
166		239
167	=over 4	240	=over 4
168		241
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	260	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	261	$d
189	} || "[unable to dump $_[0]: '$@']";	262	} || "[unable to dump $_[0]: '$@']";
190	}	263	}
191		264
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	265	=item $ref = cf::decode_json $json
195		266
196	Converts a JSON string into the corresponding perl data structure.	267	Converts a JSON string into the corresponding perl data structure.
197		268
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	269	=item $json = cf::encode_json $ref
206		270
207	Converts a perl data structure into its JSON representation.	271	Converts a perl data structure into its JSON representation.
208		272
209	=cut	273	=cut
210		274
211	sub to_json($) {	275	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	276
213	JSON::Syck::Dump $_[0]	277	sub encode_json($) { $json_coder->encode ($_[0]) }
214	}	278	sub decode_json($) { $json_coder->decode ($_[0]) }
215		279
216	=item cf::lock_wait $string	280	=item cf::lock_wait $string
217		281
218	Wait until the given lock is available. See cf::lock_acquire.	282	Wait until the given lock is available. See cf::lock_acquire.
219		283
…		…
222	Wait until the given lock is available and then acquires it and returns	286	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	287	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	288	for example when the coroutine gets canceled), the lock is automatically
225	returned.	289	returned.
226		290
		291	Locks are *not* recursive, locking from the same coro twice results in a
		292	deadlocked coro.
		293
227	Lock names should begin with a unique identifier (for example, cf::map::find	294	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	295	uses map_find and cf::map::load uses map_load).
229		296
		297	=item $locked = cf::lock_active $string
		298
		299	Return true if the lock is currently active, i.e. somebody has locked it.
		300
230	=cut	301	=cut
231		302
232	our %LOCK;	303	our %LOCK;
		304	our %LOCKER;#d#
233		305
234	sub lock_wait($) {	306	sub lock_wait($) {
235	my ($key) = @_;	307	my ($key) = @_;
		308
		309	if ($LOCKER{$key} == $Coro::current) {#d#
		310	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		311	return;#d#
		312	}#d#
236		313
237	# wait for lock, if any	314	# wait for lock, if any
238	while ($LOCK{$key}) {	315	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	316	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	317	Coro::schedule;
…		…
246		323
247	# wait, to be sure we are not locked	324	# wait, to be sure we are not locked
248	lock_wait $key;	325	lock_wait $key;
249		326
250	$LOCK{$key} = [];	327	$LOCK{$key} = [];
		328	$LOCKER{$key} = $Coro::current;#d#
251		329
252	Coro::guard {	330	Coro::guard {
		331	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	332	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	333	$_->ready for @{ delete $LOCK{$key} };
255	}	334	}
256	}	335	}
257		336
		337	sub lock_active($) {
		338	my ($key) = @_;
		339
		340	! ! $LOCK{$key}
		341	}
		342
258	sub freeze_mainloop {	343	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	344	return unless $TICK_WATCHER->is_active;
260		345
261	my $guard = Coro::guard { $TICK_WATCHER->start };	346	my $guard = Coro::guard {
		347	$TICK_WATCHER->start;
		348	};
262	$TICK_WATCHER->stop;	349	$TICK_WATCHER->stop;
263	$guard	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	$sig->wait;
264	}	424	}
265		425
266	=item cf::async { BLOCK }	426	=item cf::async { BLOCK }
267		427
268	Currently the same as Coro::async_pool, meaning you cannot use	428	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		433
274	BEGIN { *async = \&Coro::async_pool }	434	BEGIN { *async = \&Coro::async_pool }
275		435
276	=item cf::sync_job { BLOCK }	436	=item cf::sync_job { BLOCK }
277		437
278	The design of crossfire+ requires that the main coro ($Coro::main) is	438	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	439	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	440	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		441	acceptable.
281		442
282	If it must be done, put the blocking parts into C<sync_job>. This will run	443	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	444	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	445	server will be frozen during this time, so the block should either finish
285	fast or be very important.	446	fast or be very important.
…		…
288		449
289	sub sync_job(&) {	450	sub sync_job(&) {
290	my ($job) = @_;	451	my ($job) = @_;
291		452
292	if ($Coro::current == $Coro::main) {	453	if ($Coro::current == $Coro::main) {
		454	my $time = EV::time;
		455
293	# this is the main coro, too bad, we have to block	456	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	457	# till the operation succeeds, freezing the server :/
295		458
		459	LOG llevError, Carp::longmess "sync job";#d#
		460
296	# TODO: use suspend/resume instead	461	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	462	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	463	my $freeze_guard = freeze_mainloop;
299		464
300	my $busy = 1;	465	my $busy = 1;
301	my @res;	466	my @res;
302		467
303	(async {	468	(async {
		469	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	470	@res = eval { $job->() };
305	warn $@ if $@;	471	warn $@ if $@;
306	undef $busy;	472	undef $busy;
307	})->prio (Coro::PRIO_MAX);	473	})->prio (Coro::PRIO_MAX);
308		474
309	while ($busy) {	475	while ($busy) {
310	Coro::cede or Event::one_event;	476	if (Coro::nready) {
		477	Coro::cede_notself;
		478	} else {
		479	EV::loop EV::LOOP_ONESHOT;
311	}	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
312		489
313	wantarray ? @res : $res[0]	490	wantarray ? @res : $res[0]
314	} else {	491	} else {
315	# we are in another coroutine, how wonderful, everything just works	492	# we are in another coroutine, how wonderful, everything just works
316		493
…		…
336	$EXT_CORO{$coro+0} = $coro;	513	$EXT_CORO{$coro+0} = $coro;
337		514
338	$coro	515	$coro
339	}	516	}
340		517
341	sub write_runtime {	518	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		519
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	520	Executes the given code block with the given arguments in a seperate
345	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.
346		524
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	525	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		526
351	aio_fsync $fh	527	sub fork_call(&@) {
352	and return;	528	my ($cb, @args) = @_;
353		529
354	close $fh	530	# we seemingly have to make a local copy of the whole thing,
355	or return;	531	# otherwise perl prematurely frees the stuff :/
		532	# TODO: investigate and fix (likely this will be rather laborious)
356		533
357	aio_rename "$runtime~", $runtime	534	my @res = Coro::Util::fork_eval {
358	and return;	535	reset_signals;
		536	&$cb
		537	}, @args;
359		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($$) {
		584	my $key = "$_[0]/$_[1]";
		585
		586	cf::sync_job {
		587	BDB::db_get $DB, undef, $key, my $data;
		588
		589	$! ? ()
		590	: $data
360	1	591	}
		592	}
		593
		594	sub db_put($$$) {
		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 });
361	}	678	}
362		679
363	=back	680	=back
364		681
365	=cut	682	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		683
543	#############################################################################	684	#############################################################################
544		685
545	=head2 ATTACHABLE OBJECTS	686	=head2 ATTACHABLE OBJECTS
546		687
…		…
548	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")
549	to it. All such attachable objects support the following methods.	690	to it. All such attachable objects support the following methods.
550		691
551	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>
552	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
553	crossfire+).	694	Deliantra).
554		695
555	=over 4	696	=over 4
556		697
557	=item $attachable->attach ($attachment, key => $value...)	698	=item $attachable->attach ($attachment, key => $value...)
558		699
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	813	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	814	our @CB_MAP = ();
674		815
675	my %attachment;	816	my %attachment;
676		817
		818	sub cf::attachable::thawer_merge {
		819	# simply override everything except _meta
		820	local $_[0]{_meta};
		821	%{$_[0]} = %{$_[1]};
		822	}
		823
677	sub _attach_cb($$$$) {	824	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	825	my ($registry, $event, $prio, $cb) = @_;
679		826
680	use sort 'stable';	827	use sort 'stable';
681		828
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	862	$registry = $CB_TYPE[$object_type] ||= [];
716		863
717	} elsif ($type eq "subtype") {	864	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	865	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	866	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	867	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		868
722	} elsif ($type eq "package") {	869	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	870	my $pkg = shift @arg;
724		871
725	while (my ($name, $id) = each %cb_id) {	872	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	901	_attach $registry, $klass, @attach;
755	}	902	}
756		903
757	$obj->{$name} = \%arg;	904	$obj->{$name} = \%arg;
758	} else {	905	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	906	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	907	}
761		908
762	$obj->{_attachment}{$name} = undef;	909	$obj->{_attachment}{$name} = undef;
763	}	910	}
764		911
…		…
766	if (ref $_[0]) {	913	if (ref $_[0]) {
767	_object_attach @_;	914	_object_attach @_;
768	} else {	915	} else {
769	_attach shift->_attach_registry, @_;	916	_attach shift->_attach_registry, @_;
770	}	917	}
		918	_recalc_want;
771	};	919	};
772		920
773	# all those should be optimised	921	# all those should be optimised
774	sub cf::attachable::detach {	922	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	923	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	926	delete $obj->{_attachment}{$name};
779	reattach ($obj);	927	reattach ($obj);
780	} else {	928	} else {
781	Carp::croak "cannot, currently, detach class attachments";	929	Carp::croak "cannot, currently, detach class attachments";
782	}	930	}
		931	_recalc_want;
783	};	932	};
784		933
785	sub cf::attachable::attached {	934	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
787		936
…		…
802	";	951	";
803	die if $@;	952	die if $@;
804	}	953	}
805		954
806	our $override;	955	our $override;
807	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?
808		957
809	sub override {	958	sub override {
810	$override = 1;	959	$override = 1;
811	@invoke_results = ();	960	@INVOKE_RESULTS = (@_);
812	}	961	}
813		962
814	sub do_invoke {	963	sub do_invoke {
815	my $event = shift;	964	my $event = shift;
816	my $callbacks = shift;	965	my $callbacks = shift;
817		966
818	@invoke_results = ();	967	@INVOKE_RESULTS = ();
819		968
820	local $override;	969	local $override;
821		970
822	for (@$callbacks) {	971	for (@$callbacks) {
823	eval { &{$_->[1]} };	972	eval { &{$_->[1]} };
…		…
832	}	981	}
833		982
834	0	983	0
835	}	984	}
836		985
837	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	986	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
838		987
839	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	988	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
840		989
841	Generate an object-specific event with the given arguments.	990	Generate an object-specific event with the given arguments.
842		991
843	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
844	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
845	results (if you must, access C<@cf::invoke_results> directly).	994	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		995
847	=back	996	=back
848		997
849	=cut	998	=cut
850		999
851	#############################################################################	1000	#############################################################################
852	# 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	}
853		1044
854	sub reattach {	1045	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1046	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1047	my ($obj) = @_;
		1048
		1049	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1050
858	my $registry = $obj->registry;	1051	my $registry = $obj->registry;
859		1052
860	@$registry = ();	1053	@$registry = ();
861		1054
…		…
876	cf::attachable->attach (	1069	cf::attachable->attach (
877	prio => -1000000,	1070	prio => -1000000,
878	on_instantiate => sub {	1071	on_instantiate => sub {
879	my ($obj, $data) = @_;	1072	my ($obj, $data) = @_;
880		1073
881	$data = from_json $data;	1074	$data = decode_json $data;
882		1075
883	for (@$data) {	1076	for (@$data) {
884	my ($name, $args) = @$_;	1077	my ($name, $args) = @$_;
885		1078
886	$obj->attach ($name, %{$args || {} });	1079	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1095	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1096	my ($filename, $rdata, $objs) = @_;
904		1097
905	sync_job {	1098	sync_job {
906	if (length $$rdata) {	1099	if (length $$rdata) {
		1100	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1101	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1102	$decname, length $$rdata, scalar @$objs;
909		1103
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1106	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1107	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1108	close $fh;
915		1109
916	if (@$objs) {	1110	if (@$objs) {
917	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) {
918	chmod SAVE_MODE, $fh;	1112	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1113	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1114	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1115	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1116	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1117	aio_rename "$filename.pst~", "$filename.pst";
924	}	1118	}
925	} else {	1119	} else {
926	aio_unlink "$filename.pst";	1120	aio_unlink "$filename.pst";
…		…
932	}	1126	}
933	} else {	1127	} else {
934	aio_unlink $filename;	1128	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1129	aio_unlink "$filename.pst";
936	}	1130	}
937	}	1131	};
938	}	1132	}
939		1133
940	sub object_freezer_as_string {	1134	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1135	my ($rdata, $objs) = @_;
942		1136
…		…
954	or return;	1148	or return;
955		1149
956	unless (aio_stat "$filename.pst") {	1150	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1151	(aio_load "$filename.pst", $av) >= 0
958	or return;	1152	or return;
		1153
959	$av = eval { (Storable::thaw $av)->{objs} };	1154	my $st = eval { Coro::Storable::thaw $av };
		1155	$av = $st->{objs};
960	}	1156	}
961		1157
		1158	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1159	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1160	$decname, length $data, scalar @{$av || []};
		1161
964	return ($data, $av);	1162	($data, $av)
965	}	1163	}
		1164
		1165	=head2 COMMAND CALLBACKS
		1166
		1167	=over 4
		1168
		1169	=cut
966		1170
967	#############################################################################	1171	#############################################################################
968	# command handling &c	1172	# command handling &c
969		1173
970	=item cf::register_command $name => \&callback($ob,$args);	1174	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1187	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1188	}
985		1189
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1190	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1191
988	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.
989		1197
990	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
991	called.	1199	called.
992		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
993	=cut	1212	=cut
994		1213
995	sub register_extcmd {	1214	sub register_extcmd {
996	my ($name, $cb) = @_;	1215	my ($name, $cb) = @_;
997		1216
998	$EXTCMD{$name} = $cb;	1217	$EXTCMD{$name} = $cb;
		1218	}
		1219
		1220	sub register_exticmd {
		1221	my ($name, $cb) = @_;
		1222
		1223	$EXTICMD{$name} = $cb;
999	}	1224	}
1000		1225
1001	cf::player->attach (	1226	cf::player->attach (
1002	on_command => sub {	1227	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1228	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1237	cf::override;
1013	},	1238	},
1014	on_extcmd => sub {	1239	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1240	my ($pl, $buf) = @_;
1016		1241
1017	my $msg = eval { from_json $buf };	1242	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1243
1019	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
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1252	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1253	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1254	}
		1255
		1256	$pl->ext_reply ($reply, @reply)
		1257	if $reply;
		1258
1025	} else {	1259	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1260	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1261	}
1028		1262
1029	cf::override;	1263	cf::override;
1030	},	1264	},
1031	);	1265	);
1032		1266
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1267	sub load_extensions {
		1268	cf::sync_job {
		1269	my %todo;
		1270
1061	for my $ext (<$LIBDIR/*.ext>) {	1271	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1272	next unless -r $path;
1063	eval {	1273
1064	load_extension $ext;	1274	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1275	my $base = $1;
		1276	my $pkg = $1;
		1277	$pkg =~ s/[^[:word:]]/_/g;
		1278	$pkg = "ext::$pkg";
		1279
		1280	open my $fh, "<:utf8", $path
		1281	or die "$path: $!";
		1282
		1283	my $source = do { local $/; <$fh> };
		1284
		1285	my %ext = (
		1286	path => $path,
		1287	base => $base,
		1288	pkg => $pkg,
		1289	);
		1290
		1291	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1292	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1293
		1294	$ext{source} =
		1295	"package $pkg; use strict; use utf8;\n"
		1296	. "#line 1 \"$path\"\n{\n"
		1297	. $source
		1298	. "\n};\n1";
		1299
		1300	$todo{$base} = \%ext;
		1301	}
		1302
		1303	my %done;
		1304	while (%todo) {
		1305	my $progress;
		1306
		1307	while (my ($k, $v) = each %todo) {
		1308	for (split /,\s*/, $v->{meta}{depends}) {
		1309	goto skip
		1310	unless exists $done{$_};
		1311	}
		1312
		1313	warn "... loading '$k' into '$v->{pkg}'\n";
		1314
		1315	unless (eval $v->{source}) {
		1316	my $msg = $@ ? "$v->{path}: $@\n"
		1317	: "$v->{base}: extension inactive.\n";
		1318
		1319	if (exists $v->{meta}{mandatory}) {
		1320	warn $msg;
		1321	cf::cleanup "mandatory extension failed to load, exiting.";
		1322	}
		1323
		1324	warn $msg;
		1325	}
		1326
		1327	$done{$k} = delete $todo{$k};
		1328	push @EXTS, $v->{pkg};
		1329	$progress = 1;
1065	1	1330	}
1066	} or warn "$ext not loaded: $@";	1331
		1332	skip:
		1333	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1334	unless $progress;
		1335	}
1067	}	1336	};
1068	}	1337	}
1069		1338
1070	#############################################################################	1339	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1340
1073	*cf::mapsupport::on_clean = sub {	1341	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1342
1086	=head2 CORE EXTENSIONS	1343	=head2 CORE EXTENSIONS
1087		1344
1088	Functions and methods that extend core crossfire objects.	1345	Functions and methods that extend core crossfire objects.
1089		1346
…		…
1095		1352
1096	=head3 cf::player	1353	=head3 cf::player
1097		1354
1098	=over 4	1355	=over 4
1099		1356
		1357	=item cf::player::num_playing
		1358
		1359	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1360
		1361	=cut
		1362
		1363	sub num_playing {
		1364	scalar grep
		1365	$_->ob->map
		1366	&& !$_->hidden
		1367	&& !$_->ob->flag (cf::FLAG_WIZ),
		1368	cf::player::list
		1369	}
		1370
1100	=item cf::player::find $login	1371	=item cf::player::find $login
1101		1372
1102	Returns the given player object, loading it if necessary (might block).	1373	Returns the given player object, loading it if necessary (might block).
1103		1374
1104	=cut	1375	=cut
1105		1376
1106	sub playerdir($) {	1377	sub playerdir($) {
1107	cf::localdir	1378	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1379	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1380	}
1113		1381
1114	sub path($) {	1382	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1383	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1384
1117	(playerdir $login) . "/$login.pl"	1385	(playerdir $login) . "/playerdata"
1118	}	1386	}
1119		1387
1120	sub find_active($) {	1388	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1389	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1390	and $cf::PLAYER{$_[0]}->active
…		…
1125		1393
1126	sub exists($) {	1394	sub exists($) {
1127	my ($login) = @_;	1395	my ($login) = @_;
1128		1396
1129	$cf::PLAYER{$login}	1397	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1398	or cf::sync_job { !aio_stat path $login }
1131	}	1399	}
1132		1400
1133	sub find($) {	1401	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1402	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1403	my $login = $_[0];
1136		1404
1137	my $guard = cf::lock_acquire "user_find:$login";	1405	my $guard = cf::lock_acquire "user_find:$login";
1138		1406
1139	$cf::PLAYER{$_[0]} || do {	1407	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1408	# rename old playerfiles to new ones
		1409	#TODO: remove when no longer required
		1410	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1411	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1412	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1413	aio_unlink +(playerdir $login) . "/$login.pl";
		1414
		1415	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1416	or return;
		1417
		1418	my $pl = cf::player::load_pl $f
		1419	or return;
		1420	local $cf::PLAYER_LOADING{$login} = $pl;
		1421	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1422	$cf::PLAYER{$login} = $pl
1143	}	1423	}
1144	}	1424	}
1145	}	1425	}
1146		1426
…		…
1156		1436
1157	aio_mkdir playerdir $pl, 0770;	1437	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1438	$pl->{last_save} = $cf::RUNTIME;
1159		1439
1160	$pl->save_pl ($path);	1440	$pl->save_pl ($path);
1161	Coro::cede;	1441	cf::cede_to_tick;
1162	}	1442	}
1163		1443
1164	sub new($) {	1444	sub new($) {
1165	my ($login) = @_;	1445	my ($login) = @_;
1166		1446
…		…
1172	$cf::PLAYER{$login} = $self;	1452	$cf::PLAYER{$login} = $self;
1173		1453
1174	$self	1454	$self
1175	}	1455	}
1176		1456
		1457	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1458
		1459	=cut
		1460
		1461	sub send_msg {
		1462	my $ns = shift->ns
		1463	or return;
		1464	$ns->send_msg (@_);
		1465	}
		1466
1177	=item $pl->quit_character	1467	=item $pl->quit_character
1178		1468
1179	Nukes the player without looking back. If logged in, the connection will	1469	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1470	be destroyed. May block for a long time.
1181		1471
1182	=cut	1472	=cut
1183		1473
1184	sub quit_character {	1474	sub quit_character {
1185	my ($pl) = @_;	1475	my ($pl) = @_;
		1476
		1477	my $name = $pl->ob->name;
1186		1478
1187	$pl->{deny_save} = 1;	1479	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1480	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1481
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1482	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1487	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1488	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1489	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1490	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1491	$pl->destroy;
		1492
		1493	my $prefix = qr<^~\Q$name\E/>;
		1494
		1495	# nuke player maps
		1496	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1497
1200	IO::AIO::aio_rmtree $temp;	1498	IO::AIO::aio_rmtree $temp;
		1499	}
		1500
		1501	=item $pl->kick
		1502
		1503	Kicks a player out of the game. This destroys the connection.
		1504
		1505	=cut
		1506
		1507	sub kick {
		1508	my ($pl, $kicker) = @_;
		1509
		1510	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1511	$pl->killer ("kicked");
		1512	$pl->ns->destroy;
1201	}	1513	}
1202		1514
1203	=item cf::player::list_logins	1515	=item cf::player::list_logins
1204		1516
1205	Returns am arrayref of all valid playernames in the system, can take a	1517	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1518	while and may block, so not sync_job-capable, ever.
1207		1519
1208	=cut	1520	=cut
1209		1521
1210	sub list_logins {	1522	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1523	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1524	or return [];
1213		1525
1214	my @logins;	1526	my @logins;
1215		1527
1216	for my $login (@$dirs) {	1528	for my $login (@$dirs) {
		1529	my $path = path $login;
		1530
		1531	# a .pst is a dead give-away for a valid player
		1532	unless (-e "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1533	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1534	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1535	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1536	}
1220		1537
1221	utf8::decode $login;	1538	utf8::decode $login;
1222	push @logins, $login;	1539	push @logins, $login;
1223	}	1540	}
1224		1541
1225	\@logins	1542	\@logins
1226	}	1543	}
1227		1544
1228	=item $player->maps	1545	=item $player->maps
1229		1546
1230	Returns an arrayref of cf::path's of all maps that are private for this	1547	Returns an arrayref of map paths that are private for this
1231	player. May block.	1548	player. May block.
1232		1549
1233	=cut	1550	=cut
1234		1551
1235	sub maps($) {	1552	sub maps($) {
1236	my ($pl) = @_;	1553	my ($pl) = @_;
		1554
		1555	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1556
1238	my $files = aio_readdir playerdir $pl	1557	my $files = aio_readdir playerdir $pl
1239	or return;	1558	or return;
1240		1559
1241	my @paths;	1560	my @paths;
…		…
1243	for (@$files) {	1562	for (@$files) {
1244	utf8::decode $_;	1563	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1564	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1565	next unless /^$PATH_SEP/o;
1247		1566
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1567	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1568	}
1250		1569
1251	\@paths	1570	\@paths
1252	}	1571	}
1253		1572
		1573	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1574
		1575	Expand crossfire pod fragments into protocol xml.
		1576
		1577	=cut
		1578
		1579	use re 'eval';
		1580
		1581	my $group;
		1582	my $interior; $interior = qr{
		1583	# match a pod interior sequence sans C<< >>
		1584	(?:
		1585	\ (.*?)\ (?{ $group = $^N })
		1586	| < (??{$interior}) >
		1587	)
		1588	}x;
		1589
		1590	sub expand_cfpod {
		1591	my ($self, $pod) = @_;
		1592
		1593	my $xml;
		1594
		1595	while () {
		1596	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1597	$group = $1;
		1598
		1599	$group =~ s/&/&amp;/g;
		1600	$group =~ s/</&lt;/g;
		1601
		1602	$xml .= $group;
		1603	} elsif ($pod =~ m%\G
		1604	([BCGHITU])
		1605	<
		1606	(?:
		1607	([^<>]*) (?{ $group = $^N })
		1608	| < $interior >
		1609	)
		1610	>
		1611	%gcsx
		1612	) {
		1613	my ($code, $data) = ($1, $group);
		1614
		1615	if ($code eq "B") {
		1616	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1617	} elsif ($code eq "I") {
		1618	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1619	} elsif ($code eq "U") {
		1620	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1621	} elsif ($code eq "C") {
		1622	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1623	} elsif ($code eq "T") {
		1624	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1625	} elsif ($code eq "G") {
		1626	my ($male, $female) = split /\|/, $data;
		1627	$data = $self->gender ? $female : $male;
		1628	$xml .= expand_cfpod ($self, $data);
		1629	} elsif ($code eq "H") {
		1630	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1631	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1632	"")
		1633	[$self->{hintmode}];
		1634	} else {
		1635	$xml .= "error processing '$code($data)' directive";
		1636	}
		1637	} else {
		1638	if ($pod =~ /\G(.+)/) {
		1639	warn "parse error while expanding $pod (at $1)";
		1640	}
		1641	last;
		1642	}
		1643	}
		1644
		1645	for ($xml) {
		1646	# create single paragraphs (very hackish)
		1647	s/(?<=\S)\n(?=\w)/ /g;
		1648
		1649	# compress some whitespace
		1650	s/\s+\n/\n/g; # ws line-ends
		1651	s/\n\n+/\n/g; # double lines
		1652	s/^\n+//; # beginning lines
		1653	s/\n+$//; # ending lines
		1654	}
		1655
		1656	$xml
		1657	}
		1658
		1659	no re 'eval';
		1660
		1661	sub hintmode {
		1662	$_[0]{hintmode} = $_[1] if @_ > 1;
		1663	$_[0]{hintmode}
		1664	}
		1665
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1666	=item $player->ext_reply ($msgid, @msg)
1255		1667
1256	Sends an ext reply to the player.	1668	Sends an ext reply to the player.
1257		1669
1258	=cut	1670	=cut
1259		1671
1260	sub ext_reply($$$%) {	1672	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1673	my ($self, $id, @msg) = @_;
1262		1674
1263	$msg{msgid} = $id;	1675	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1676	}
1267		1677
1268	package cf;	1678	=item $player->ext_msg ($type, @msg)
		1679
		1680	Sends an ext event to the client.
		1681
		1682	=cut
		1683
		1684	sub ext_msg($$@) {
		1685	my ($self, $type, @msg) = @_;
		1686
		1687	$self->ns->ext_msg ($type, @msg);
		1688	}
		1689
		1690	=head3 cf::region
		1691
		1692	=over 4
		1693
		1694	=cut
		1695
		1696	package cf::region;
		1697
		1698	=item cf::region::find_by_path $path
		1699
		1700	Tries to decuce the likely region for a map knowing only its path.
		1701
		1702	=cut
		1703
		1704	sub find_by_path($) {
		1705	my ($path) = @_;
		1706
		1707	my ($match, $specificity);
		1708
		1709	for my $region (list) {
		1710	if ($region->{match} && $path =~ $region->{match}) {
		1711	($match, $specificity) = ($region, $region->specificity)
		1712	if $region->specificity > $specificity;
		1713	}
		1714	}
		1715
		1716	$match
		1717	}
1269		1718
1270	=back	1719	=back
1271
1272		1720
1273	=head3 cf::map	1721	=head3 cf::map
1274		1722
1275	=over 4	1723	=over 4
1276		1724
…		…
1279	package cf::map;	1727	package cf::map;
1280		1728
1281	use Fcntl;	1729	use Fcntl;
1282	use Coro::AIO;	1730	use Coro::AIO;
1283		1731
		1732	use overload
		1733	'""' => \&as_string,
		1734	fallback => 1;
		1735
1284	our $MAX_RESET = 3600;	1736	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1737	our $DEFAULT_RESET = 3000;
1286		1738
1287	sub generate_random_map {	1739	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1740	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1741	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1742	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1743	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1744	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1745	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1746	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1747	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1752	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1753	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1754	)
1305	}	1755	}
1306		1756
		1757	=item cf::map->register ($regex, $prio)
		1758
		1759	Register a handler for the map path matching the given regex at the
		1760	givne priority (higher is better, built-in handlers have priority 0, the
		1761	default).
		1762
		1763	=cut
		1764
		1765	sub register {
		1766	my (undef, $regex, $prio) = @_;
		1767	my $pkg = caller;
		1768
		1769	no strict;
		1770	push @{"$pkg\::ISA"}, __PACKAGE__;
		1771
		1772	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1773	}
		1774
		1775	# also paths starting with '/'
		1776	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1777
		1778	sub thawer_merge {
		1779	my ($self, $merge) = @_;
		1780
		1781	# we have to keep some variables in memory intact
		1782	local $self->{path};
		1783	local $self->{load_path};
		1784
		1785	$self->SUPER::thawer_merge ($merge);
		1786	}
		1787
		1788	sub normalise {
		1789	my ($path, $base) = @_;
		1790
		1791	$path = "$path"; # make sure its a string
		1792
		1793	$path =~ s/\.map$//;
		1794
		1795	# map plan:
		1796	#
		1797	# /! non-realised random map exit (special hack!)
		1798	# {... are special paths that are not being touched
		1799	# ?xxx/... are special absolute paths
		1800	# ?random/... random maps
		1801	# /... normal maps
		1802	# ~user/... per-player map of a specific user
		1803
		1804	$path =~ s/$PATH_SEP/\//go;
		1805
		1806	# treat it as relative path if it starts with
		1807	# something that looks reasonable
		1808	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1809	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1810
		1811	$base =~ s{[^/]+/?$}{};
		1812	$path = "$base/$path";
		1813	}
		1814
		1815	for ($path) {
		1816	redo if s{//}{/};
		1817	redo if s{/\.?/}{/};
		1818	redo if s{/[^/]+/\.\./}{/};
		1819	}
		1820
		1821	$path
		1822	}
		1823
		1824	sub new_from_path {
		1825	my (undef, $path, $base) = @_;
		1826
		1827	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1828
		1829	$path = normalise $path, $base;
		1830
		1831	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1832	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1833	my $self = bless cf::map::new, $pkg;
		1834	$self->{path} = $path; $self->path ($path);
		1835	$self->init; # pass $1 etc.
		1836	return $self;
		1837	}
		1838	}
		1839
		1840	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1841	()
		1842	}
		1843
		1844	sub init {
		1845	my ($self) = @_;
		1846
		1847	$self
		1848	}
		1849
		1850	sub as_string {
		1851	my ($self) = @_;
		1852
		1853	"$self->{path}"
		1854	}
		1855
		1856	# the displayed name, this is a one way mapping
		1857	sub visible_name {
		1858	&as_string
		1859	}
		1860
		1861	# the original (read-only) location
		1862	sub load_path {
		1863	my ($self) = @_;
		1864
		1865	"$MAPDIR/$self->{path}.map"
		1866	}
		1867
		1868	# the temporary/swap location
		1869	sub save_path {
		1870	my ($self) = @_;
		1871
		1872	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1873	"$TMPDIR/$path.map"
		1874	}
		1875
		1876	# the unique path, undef == no special unique path
		1877	sub uniq_path {
		1878	my ($self) = @_;
		1879
		1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1881	"$UNIQUEDIR/$path"
		1882	}
		1883
1307	# and all this just because we cannot iterate over	1884	# and all this just because we cannot iterate over
1308	# all maps in C++...	1885	# all maps in C++...
1309	sub change_all_map_light {	1886	sub change_all_map_light {
1310	my ($change) = @_;	1887	my ($change) = @_;
1311		1888
1312	$_->change_map_light ($change)	1889	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1890	for grep $_->outdoor, values %cf::MAP;
1314	}	1891	}
1315		1892
		1893	sub decay_objects {
		1894	my ($self) = @_;
		1895
		1896	return if $self->{deny_reset};
		1897
		1898	$self->do_decay_objects;
		1899	}
		1900
		1901	sub unlink_save {
		1902	my ($self) = @_;
		1903
		1904	utf8::encode (my $save = $self->save_path);
		1905	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1906	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1907	}
		1908
1316	sub load_map_header($) {	1909	sub load_header_from($) {
1317	my ($path) = @_;	1910	my ($self, $path) = @_;
1318		1911
1319	utf8::encode $path;	1912	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1913	my $f = new_from_file cf::object::thawer $path
1321	or return;	1914	or return;
1322		1915
1323	my $map = cf::map::new	1916	$self->_load_header ($f)
1324	or return;	1917	or return;
1325		1918
1326	# for better error messages only, will be overwritten later	1919	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1920	$f->resolve_delayed_derefs;
1328		1921
1329	$map->load_header ($path)	1922	$self->{load_path} = $path;
		1923
		1924	1
		1925	}
		1926
		1927	sub load_header_orig {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->load_path)
		1931	}
		1932
		1933	sub load_header_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->load_header_from ($self->save_path)
		1937	}
		1938
		1939	sub prepare_temp {
		1940	my ($self) = @_;
		1941
		1942	$self->last_access ((delete $self->{last_access})
		1943	|| $cf::RUNTIME); #d#
		1944	# safety
		1945	$self->{instantiate_time} = $cf::RUNTIME
		1946	if $self->{instantiate_time} > $cf::RUNTIME;
		1947	}
		1948
		1949	sub prepare_orig {
		1950	my ($self) = @_;
		1951
		1952	$self->{load_original} = 1;
		1953	$self->{instantiate_time} = $cf::RUNTIME;
		1954	$self->last_access ($cf::RUNTIME);
		1955	$self->instantiate;
		1956	}
		1957
		1958	sub load_header {
		1959	my ($self) = @_;
		1960
		1961	if ($self->load_header_temp) {
		1962	$self->prepare_temp;
		1963	} else {
		1964	$self->load_header_orig
1330	or return;	1965	or return;
		1966	$self->prepare_orig;
		1967	}
1331		1968
1332	$map->{load_path} = $path;	1969	$self->{deny_reset} = 1
		1970	if $self->no_reset;
1333		1971
1334	$map	1972	$self->default_region (cf::region::find_by_path $self->{path})
		1973	unless $self->default_region;
		1974
		1975	1
1335	}	1976	}
1336		1977
1337	sub find;	1978	sub find;
1338	sub find {	1979	sub find {
1339	my ($path, $origin) = @_;	1980	my ($path, $origin) = @_;
1340		1981
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1982	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1983
		1984	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1985	cf::lock_wait "map_find:$path";
1347		1986
1348	$cf::MAP{$key} || do {	1987	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1988	my $guard1 = cf::lock_acquire "map_find:$path";
		1989	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1350		1990
1351	# do it the slow way	1991	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1992	or return;
1365		1993
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1994	$map->{last_save} = $cf::RUNTIME;
1378		1995
1379	Coro::cede;	1996	$map->load_header
		1997	or return;
1380		1998
1381	if ($map->should_reset) {	1999	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2000	# doing this can freeze the server in a sync job, obviously
		2001	#$cf::WAIT_FOR_TICK->wait;
		2002	undef $guard1;
		2003	undef $guard2;
1382	$map->reset;	2004	$map->reset;
1383	undef $guard;
1384	$map = find $path	2005	return find $path;
1385	or return;
1386	}	2006	}
1387		2007
1388	$cf::MAP{$key} = $map	2008	$cf::MAP{$path} = $map
1389	}	2009	}
1390	}	2010	}
		2011
		2012	sub pre_load { }
		2013	sub post_load { }
1391		2014
1392	sub load {	2015	sub load {
1393	my ($self) = @_;	2016	my ($self) = @_;
1394		2017
		2018	local $self->{deny_reset} = 1; # loading can take a long time
		2019
1395	my $path = $self->{path};	2020	my $path = $self->{path};
		2021
		2022	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2023	my $guard = cf::lock_acquire "map_data:$path";
1397		2024
		2025	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2026	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		2027
1400	$self->in_memory (cf::MAP_LOADING);	2028	$self->in_memory (cf::MAP_LOADING);
1401		2029
1402	$self->alloc;	2030	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2031
		2032	$self->pre_load;
		2033	cf::cede_to_tick;
		2034
		2035	my $f = new_from_file cf::object::thawer $self->{load_path};
		2036	$f->skip_block;
		2037	$self->_load_objects ($f)
1404	or return;	2038	or return;
1405		2039
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2040	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	2041	if delete $self->{load_original};
1408		2042
1409	if (my $uniq = $path->uniq_path) {	2043	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2044	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2045	unless (aio_stat $uniq) {
		2046	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2047	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2048	$self->_load_objects ($f);
		2049	$f->resolve_delayed_derefs;
		2050	}
1414	}	2051	}
1415	}	2052	}
1416		2053
1417	Coro::cede;	2054	$f->resolve_delayed_derefs;
1418		2055
		2056	cf::cede_to_tick;
1419	# now do the right thing for maps	2057	# now do the right thing for maps
1420	$self->link_multipart_objects;	2058	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2059	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2060	unless $self->difficulty;
		2061	cf::cede_to_tick;
		2062
		2063	unless ($self->{deny_activate}) {
		2064	$self->decay_objects;
		2065	$self->fix_auto_apply;
		2066	$self->update_buttons;
		2067	cf::cede_to_tick;
		2068	$self->set_darkness_map;
		2069	cf::cede_to_tick;
1432	$self->activate;	2070	$self->activate;
1433	}	2071	}
1434		2072
1435	Coro::cede;	2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
1436		2075
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2076	$self->in_memory (cf::MAP_IN_MEMORY);
		2077	}
		2078
		2079	$self->post_load;
		2080	}
		2081
		2082	sub customise_for {
		2083	my ($self, $ob) = @_;
		2084
		2085	return find "~" . $ob->name . "/" . $self->{path}
		2086	if $self->per_player;
		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
		2091	$self
1438	}	2092	}
1439		2093
1440	# find and load all maps in the 3x3 area around a map	2094	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2095	sub load_neighbours {
1442	my ($map) = @_;	2096	my ($map) = @_;
1443		2097
1444	my @diag; # diagonal neighbours	2098	my @neigh; # diagonal neighbours
1445		2099
1446	for (0 .. 3) {	2100	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2101	my $neigh = $map->tile_path ($_)
1448	or next;	2102	or next;
1449	$neigh = find $neigh, $map	2103	$neigh = find $neigh, $map
1450	or next;	2104	or next;
1451	$neigh->load;	2105	$neigh->load;
1452		2106
		2107	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2110	}
1456		2111
1457	for (@diag) {	2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2114	my $neigh = find $path, $origin
1459	or next;	2115	or next;
1460	$neigh->load;	2116	$neigh->load;
1461	}	2117	}
1462	}	2118	}
1463		2119
…		…
1468	}	2124	}
1469		2125
1470	sub do_load_sync {	2126	sub do_load_sync {
1471	my ($map) = @_;	2127	my ($map) = @_;
1472		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1473	cf::sync_job { $map->load };	2132	cf::sync_job { $map->load };
1474	}	2133	}
1475		2134
1476	our %MAP_PREFETCH;	2135	our %MAP_PREFETCH;
		2136	our $MAP_PREFETCHER = undef;
		2137
		2138	sub find_async {
		2139	my ($path, $origin, $load) = @_;
		2140
		2141	$path = normalise $path, $origin && $origin->{path};
		2142
		2143	if (my $map = $cf::MAP{$path}) {
		2144	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
1477	our $MAP_PREFETCHER = Coro::async {	2149	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2150	$Coro::current->{desc} = "map prefetcher";
		2151
1479	while (%MAP_PREFETCH) {	2152	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2153	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
1482	my $path = delete $MAP_PREFETCH{$key};	2158	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2159	}
1488	Coro::schedule;	2160	}
		2161	undef $MAP_PREFETCHER;
1489	}	2162	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2163	$MAP_PREFETCHER->prio (6);
1504		2164
1505	()	2165	()
1506	}	2166	}
1507		2167
1508	sub save {	2168	sub save {
1509	my ($self) = @_;	2169	my ($self) = @_;
1510		2170
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2172
1513	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1514		2174
1515	return unless $self->dirty;	2175	return unless $self->dirty;
1516		2176
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2177	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2179
1520	$self->{load_path} = $save;	2180	$self->{load_path} = $save;
1521		2181
1522	return if $self->{deny_save};	2182	return if $self->{deny_save};
1523		2183
1524	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1525		2185
1526	cf::async {	2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2188	$_->contr->save for $self->players;
1528	};	2189	};
1529		2190
1530	if ($uniq) {	2191	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2192	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2193	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2194	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2195	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2196	}
1536	}	2197	}
1537		2198
1538	sub swap_out {	2199	sub swap_out {
1539	my ($self) = @_;	2200	my ($self) = @_;
1540		2201
1541	# save first because save cedes	2202	# save first because save cedes
1542	$self->save;	2203	$self->save;
1543		2204
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2205	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2206
1546	return if $self->players;	2207	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2208	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2209	return if $self->{deny_save};
1549		2210
		2211	$self->in_memory (cf::MAP_SWAPPED);
		2212
		2213	$self->deactivate;
		2214	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2215	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2216	}
1553		2217
1554	sub reset_at {	2218	sub reset_at {
1555	my ($self) = @_;	2219	my ($self) = @_;
1556		2220
1557	# TODO: safety, remove and allow resettable per-player maps	2221	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2222	return 1e99 if $self->{deny_reset};
1560		2223
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2224	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2225	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2226
…		…
1568	my ($self) = @_;	2231	my ($self) = @_;
1569		2232
1570	$self->reset_at <= $cf::RUNTIME	2233	$self->reset_at <= $cf::RUNTIME
1571	}	2234	}
1572		2235
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2236	sub reset {
1587	my ($self) = @_;	2237	my ($self) = @_;
1588		2238
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2239	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2240
1591	return if $self->players;	2241	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2242
1594	warn "resetting map ", $self->path;#d#	2243	warn "resetting map ", $self->path;
		2244
		2245	$self->in_memory (cf::MAP_SWAPPED);
		2246
		2247	# need to save uniques path
		2248	unless ($self->{deny_save}) {
		2249	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2250
		2251	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2252	if $uniq;
		2253	}
1595		2254
1596	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1597		2256
		2257	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2258	$_->clear_links_to ($self) for values %cf::MAP;
		2259	$self->clear;
1599		2260
1600	$self->{path}->unlink_save;	2261	$self->unlink_save;
1601	$self->destroy;	2262	$self->destroy;
1602	}	2263	}
1603		2264
1604	my $nuke_counter = "aaaa";	2265	my $nuke_counter = "aaaa";
1605		2266
1606	sub nuke {	2267	sub nuke {
1607	my ($self) = @_;	2268	my ($self) = @_;
1608		2269
		2270	{
		2271	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2272
		2273	delete $cf::MAP{$self->path};
		2274
		2275	$self->unlink_save;
		2276
		2277	bless $self, "cf::map";
		2278	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2279	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2280	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2281	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2282
		2283	$cf::MAP{$self->path} = $self;
		2284	}
		2285
1612	$self->reset; # polite request, might not happen	2286	$self->reset; # polite request, might not happen
1613	}	2287	}
1614		2288
		2289	=item $maps = cf::map::tmp_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	maps. May block.
		2293
		2294	=cut
		2295
		2296	sub tmp_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise $_
		2302	: ()
		2303	} @{ aio_readdir $TMPDIR or [] }
		2304	]
		2305	}
		2306
		2307	=item $maps = cf::map::random_maps
		2308
		2309	Returns an arrayref with all map paths of currently instantiated and saved
		2310	random maps. May block.
		2311
		2312	=cut
		2313
		2314	sub random_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	/\.map$/
		2319	? normalise "?random/$_"
		2320	: ()
		2321	} @{ aio_readdir $RANDOMDIR or [] }
		2322	]
		2323	}
		2324
1615	=item cf::map::unique_maps	2325	=item cf::map::unique_maps
1616		2326
1617	Returns an arrayref of cf::path's of all shared maps that have	2327	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2328	instantiated unique items. May block.
1619		2329
1620	=cut	2330	=cut
1621		2331
1622	sub unique_maps() {	2332	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2333	[
1624	or return;	2334	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2335	utf8::decode $_;
1630	next if /\.pst$/;	2336	/\.map$/
1631	next unless /^$PATH_SEP/o;	2337	? normalise $_
1632		2338	: ()
1633	push @paths, new cf::path $_;	2339	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2340	]
1635
1636	\@paths
1637	}	2341	}
1638		2342
1639	package cf;	2343	package cf;
1640		2344
1641	=back	2345	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2363	map { $_, inv_recursive_ $_->inv } @_
1660	}	2364	}
1661		2365
1662	sub inv_recursive {	2366	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2367	inv_recursive_ inv $_[0]
		2368	}
		2369
		2370	=item $ref = $ob->ref
		2371
		2372	creates and returns a persistent reference to an objetc that can be stored as a string.
		2373
		2374	=item $ob = cf::object::deref ($refstring)
		2375
		2376	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2377	even if the object actually exists. May block.
		2378
		2379	=cut
		2380
		2381	sub deref {
		2382	my ($ref) = @_;
		2383
		2384	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2385	my ($uuid, $name) = ($1, $2);
		2386	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2387	or return;
		2388	$pl->ob->uuid eq $uuid
		2389	or return;
		2390
		2391	$pl->ob
		2392	} else {
		2393	warn "$ref: cannot resolve object reference\n";
		2394	undef
		2395	}
1664	}	2396	}
1665		2397
1666	package cf;	2398	package cf;
1667		2399
1668	=back	2400	=back
…		…
1687		2419
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2420	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2421
1690	if ($self->{record_replies}) {	2422	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2423	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2424
1692	} else {	2425	} else {
		2426	my $pl = $self->contr;
		2427
		2428	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2429	my $dialog = $pl->{npc_dialog};
		2430	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2431
		2432	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2433	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2434	$self->message ($msg, $flags);
		2435	}
1695	}	2436	}
		2437	}
		2438
		2439	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2440
		2441	=cut
		2442
		2443	sub cf::object::send_msg {
		2444	my $pl = shift->contr
		2445	or return;
		2446	$pl->send_msg (@_);
1696	}	2447	}
1697		2448
1698	=item $player_object->may ("access")	2449	=item $player_object->may ("access")
1699		2450
1700	Returns wether the given player is authorized to access resource "access"	2451	Returns wether the given player is authorized to access resource "access"
…		…
1713		2464
1714	=item $player_object->enter_link	2465	=item $player_object->enter_link
1715		2466
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2467	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2468
1718	The player should be reaosnably safe there for short amounts of time. You	2469	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2470	I<MUST> call C<leave_link> as soon as possible, though.
1720		2471
		2472	Will never block.
		2473
1721	=item $player_object->leave_link ($map, $x, $y)	2474	=item $player_object->leave_link ($map, $x, $y)
1722		2475
1723	Moves the player out of the specila link map onto the given map. If the	2476	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2477	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2478	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2479	fails, to the emergency map position.
1727		2480
1728	Might block.	2481	Might block.
1729		2482
1730	=cut	2483	=cut
		2484
		2485	sub link_map {
		2486	unless ($LINK_MAP) {
		2487	$LINK_MAP = cf::map::find "{link}"
		2488	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2489	$LINK_MAP->load;
		2490	}
		2491
		2492	$LINK_MAP
		2493	}
1731		2494
1732	sub cf::object::player::enter_link {	2495	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2496	my ($self) = @_;
1734		2497
1735	$self->deactivate_recursive;	2498	$self->deactivate_recursive;
1736		2499
1737	return if $self->map == $LINK_MAP;	2500	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2501
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2503	if $self->map && $self->map->{path} ne "{link}";
1741		2504
1742	$self->enter_map ($LINK_MAP, 20, 20);	2505	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2506	}
1744		2507
1745	sub cf::object::player::leave_link {	2508	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2509	my ($self, $map, $x, $y) = @_;
		2510
		2511	return unless $self->contr->active;
1747		2512
1748	my $link_pos = delete $self->{_link_pos};	2513	my $link_pos = delete $self->{_link_pos};
1749		2514
1750	unless ($map) {	2515	unless ($map) {
1751	# restore original map position	2516	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2530	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2531	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2532	if $x <=0 && $y <= 0;
1768		2533
1769	$map->load;	2534	$map->load;
1770	$map->load_diag;	2535	$map->load_neighbours;
1771		2536
1772	return unless $self->contr->active;	2537	return unless $self->contr->active;
1773	$self->activate_recursive;	2538	$self->activate_recursive;
		2539
		2540	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2541	$self->enter_map ($map, $x, $y);
1775	}	2542	}
1776		2543
1777	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2545
1781	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1785	};	2550	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2551
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2552	=cut
		2553
		2554	our $GOTOGEN;
1812		2555
1813	sub cf::object::player::goto {	2556	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2557	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2558
1816	$path = new cf::path $path;	2559	# do generation counting so two concurrent goto's will be executed in-order
		2560	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2561
1818	$self->enter_link;	2562	$self->enter_link;
1819		2563
1820	(async {	2564	(async {
1821	my $map = cf::map::find $path->as_string;	2565	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2566
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2567	# *tag paths override both path and x|y
		2568	if ($path =~ /^\*(.*)$/) {
		2569	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2570	my $ob = $obs[rand @obs];
		2571
		2572	# see if we actually can go there
		2573	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2574	$ob = $obs[rand @obs];
		2575	} else {
		2576	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2577	}
		2578	# else put us there anyways for now #d#
		2579
		2580	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2581	} else {
		2582	($path, $x, $y) = (undef, undef, undef);
		2583	}
		2584	}
		2585
		2586	my $map = eval {
		2587	my $map = defined $path ? cf::map::find $path : undef;
		2588
1825	# if $map;	2589	if ($map) {
1826		2590	$map = $map->customise_for ($self);
		2591	$map = $check->($map) if $check && $map;
		2592	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2593	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	}
1828		2595
		2596	$map
		2597	};
		2598
		2599	if ($@) {
		2600	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2601	LOG llevError | logBacktrace, Carp::longmess $@;
		2602	}
		2603
		2604	if ($gen == $self->{_goto_generation}) {
		2605	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2606	$self->leave_link ($map, $x, $y);
		2607	}
		2608
		2609	$done->() if $done;
1830	})->prio (1);	2610	})->prio (1);
1831	}	2611	}
1832		2612
1833	=item $player_object->enter_exit ($exit_object)	2613	=item $player_object->enter_exit ($exit_object)
1834		2614
…		…
1836		2616
1837	sub parse_random_map_params {	2617	sub parse_random_map_params {
1838	my ($spec) = @_;	2618	my ($spec) = @_;
1839		2619
1840	my $rmp = { # defaults	2620	my $rmp = { # defaults
1841	xsize => 10,	2621	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2622	ysize => (cf::rndm 15, 40),
		2623	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2624	#layout => string,
1843	};	2625	};
1844		2626
1845	for (split /\n/, $spec) {	2627	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2628	my ($k, $v) = split /\s+/, $_, 2;
1847		2629
…		…
1851	$rmp	2633	$rmp
1852	}	2634	}
1853		2635
1854	sub prepare_random_map {	2636	sub prepare_random_map {
1855	my ($exit) = @_;	2637	my ($exit) = @_;
		2638
		2639	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2640
1857	# all this does is basically replace the /! path by	2641	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2642	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2643	# that depends on the exit object
1860		2644
1861	my $rmp = parse_random_map_params $exit->msg;	2645	my $rmp = parse_random_map_params $exit->msg;
1862		2646
1863	if ($exit->map) {	2647	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2648	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2649	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2650	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2651	$rmp->{origin_y} = $exit->y;
1868	}	2652	}
1869		2653
1870	$rmp->{random_seed} ||= $exit->random_seed;	2654	$rmp->{random_seed} ||= $exit->random_seed;
1871		2655
1872	my $data = cf::to_json $rmp;	2656	my $data = cf::encode_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2657	my $md5 = Digest::MD5::md5_hex $data;
		2658	my $meta = "$RANDOMDIR/$md5.meta";
1874		2659
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2660	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2661	aio_write $fh, 0, (length $data), $data, 0;
		2662	undef $fh;
		2663	aio_rename "$meta~", $meta;
1877		2664
1878	$exit->slaying ("?random/$md5");	2665	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2666	$exit->msg (undef);
1880	}	2667	}
1881	}	2668	}
…		…
1883	sub cf::object::player::enter_exit {	2670	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2671	my ($self, $exit) = @_;
1885		2672
1886	return unless $self->type == cf::PLAYER;	2673	return unless $self->type == cf::PLAYER;
1887		2674
		2675	if ($exit->slaying eq "/!") {
		2676	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2677	# the problem is that $exit might not survive long enough
		2678	# so it needs to be done right now, right here
		2679	cf::sync_job { prepare_random_map $exit };
		2680	}
		2681
		2682	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2683	my $hp = $exit->stats->hp;
		2684	my $sp = $exit->stats->sp;
		2685
1888	$self->enter_link;	2686	$self->enter_link;
1889		2687
		2688	# if exit is damned, update players death & WoR home-position
		2689	$self->contr->savebed ($slaying, $hp, $sp)
		2690	if $exit->flag (FLAG_DAMNED);
		2691
1890	(async {	2692	(async {
		2693	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2694
1891	$self->deactivate_recursive; # just to be sure	2695	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2696	unless (eval {
1893	prepare_random_map $exit	2697	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2698
1899	1;	2699	1;
1900	}) {	2700	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2701	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2702	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2703	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2704	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2705
1906	warn "ERROR in enter_exit: $@";	2706	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2707	$self->leave_link;
1908	}	2708	}
1909	})->prio (1);	2709	})->prio (1);
…		…
1922		2722
1923	sub cf::client::send_drawinfo {	2723	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2724	my ($self, $text, $flags) = @_;
1925		2725
1926	utf8::encode $text;	2726	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2727	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2728	}
1929		2729
		2730	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2731
		2732	Send a drawinfo or msg packet to the client, formatting the msg for the
		2733	client if neccessary. C<$type> should be a string identifying the type of
		2734	the message, with C<log> being the default. If C<$color> is negative, suppress
		2735	the message unless the client supports the msg packet.
		2736
		2737	=cut
		2738
		2739	# non-persistent channels (usually the info channel)
		2740	our %CHANNEL = (
		2741	"c/identify" => {
		2742	id => "infobox",
		2743	title => "Identify",
		2744	reply => undef,
		2745	tooltip => "Items recently identified",
		2746	},
		2747	"c/examine" => {
		2748	id => "infobox",
		2749	title => "Examine",
		2750	reply => undef,
		2751	tooltip => "Signs and other items you examined",
		2752	},
		2753	"c/book" => {
		2754	id => "infobox",
		2755	title => "Book",
		2756	reply => undef,
		2757	tooltip => "The contents of a note or book",
		2758	},
		2759	"c/lookat" => {
		2760	id => "infobox",
		2761	title => "Look",
		2762	reply => undef,
		2763	tooltip => "What you saw there",
		2764	},
		2765	"c/who" => {
		2766	id => "infobox",
		2767	title => "Players",
		2768	reply => undef,
		2769	tooltip => "Shows players who are currently online",
		2770	},
		2771	"c/body" => {
		2772	id => "infobox",
		2773	title => "Body Parts",
		2774	reply => undef,
		2775	tooltip => "Shows which body parts you posess and are available",
		2776	},
		2777	"c/uptime" => {
		2778	id => "infobox",
		2779	title => "Uptime",
		2780	reply => undef,
		2781	tooltip => "How long the server has been running since last restart",
		2782	},
		2783	"c/mapinfo" => {
		2784	id => "infobox",
		2785	title => "Map Info",
		2786	reply => undef,
		2787	tooltip => "Information related to the maps",
		2788	},
		2789	);
		2790
		2791	sub cf::client::send_msg {
		2792	my ($self, $channel, $msg, $color, @extra) = @_;
		2793
		2794	$msg = $self->pl->expand_cfpod ($msg);
		2795
		2796	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2797
		2798	# check predefined channels, for the benefit of C
		2799	if ($CHANNEL{$channel}) {
		2800	$channel = $CHANNEL{$channel};
		2801
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804
		2805	$channel = $channel->{id};
		2806
		2807	} elsif (ref $channel) {
		2808	# send meta info to client, if not yet sent
		2809	unless (exists $self->{channel}{$channel->{id}}) {
		2810	$self->{channel}{$channel->{id}} = $channel;
		2811	$self->ext_msg (channel_info => $channel)
		2812	if $self->can_msg;
		2813	}
		2814
		2815	$channel = $channel->{id};
		2816	}
		2817
		2818	return unless @extra || length $msg;
		2819
		2820	if ($self->can_msg) {
		2821	# default colour, mask it out
		2822	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2823	if $color & cf::NDI_DEF;
		2824
		2825	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2826	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2827	} else {
		2828	if ($color >= 0) {
		2829	# replace some tags by gcfclient-compatible ones
		2830	for ($msg) {
		2831	1 while
		2832	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2833	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2834	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2835	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2836	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2837	}
		2838
		2839	$color &= cf::NDI_COLOR_MASK;
		2840
		2841	utf8::encode $msg;
		2842
		2843	if (0 && $msg =~ /\[/) {
		2844	# COMMAND/INFO
		2845	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2846	} else {
		2847	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2848	$self->send_packet ("drawinfo $color $msg")
		2849	}
		2850	}
		2851	}
		2852	}
		2853
		2854	=item $client->ext_msg ($type, @msg)
		2855
		2856	Sends an ext event to the client.
		2857
		2858	=cut
		2859
		2860	sub cf::client::ext_msg($$@) {
		2861	my ($self, $type, @msg) = @_;
		2862
		2863	if ($self->extcmd == 2) {
		2864	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2865	} elsif ($self->extcmd == 1) { # TODO: remove
		2866	push @msg, msgtype => "event_$type";
		2867	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2868	}
		2869	}
		2870
		2871	=item $client->ext_reply ($msgid, @msg)
		2872
		2873	Sends an ext reply to the client.
		2874
		2875	=cut
		2876
		2877	sub cf::client::ext_reply($$@) {
		2878	my ($self, $id, @msg) = @_;
		2879
		2880	if ($self->extcmd == 2) {
		2881	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2882	} elsif ($self->extcmd == 1) {
		2883	#TODO: version 1, remove
		2884	unshift @msg, msgtype => "reply", msgid => $id;
		2885	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2886	}
		2887	}
1930		2888
1931	=item $success = $client->query ($flags, "text", \&cb)	2889	=item $success = $client->query ($flags, "text", \&cb)
1932		2890
1933	Queues a query to the client, calling the given callback with	2891	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2892	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2893	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2894
1937	Queries can fail, so check the return code. Or don't, as queries will become	2895	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2896	become reliable at some point in the future.
1939		2897
1940	=cut	2898	=cut
1941		2899
1942	sub cf::client::query {	2900	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2901	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2909	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2910	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2911
1954	$self->send_packet ($self->{query_queue}[0][0])	2912	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2913	if @{ $self->{query_queue} } == 1;
		2914
		2915	1
1956	}	2916	}
1957		2917
1958	cf::client->attach (	2918	cf::client->attach (
		2919	on_connect => sub {
		2920	my ($ns) = @_;
		2921
		2922	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2923	},
1959	on_reply => sub {	2924	on_reply => sub {
1960	my ($ns, $msg) = @_;	2925	my ($ns, $msg) = @_;
1961		2926
1962	# this weird shuffling is so that direct followup queries	2927	# this weird shuffling is so that direct followup queries
1963	# get handled first	2928	# get handled first
1964	my $queue = delete $ns->{query_queue}	2929	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2930	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2931
1967	(shift @$queue)->[1]->($msg);	2932	(shift @$queue)->[1]->($msg);
		2933	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2934
1969	push @{ $ns->{query_queue} }, @$queue;	2935	push @{ $ns->{query_queue} }, @$queue;
1970		2936
1971	if (@{ $ns->{query_queue} } == @$queue) {	2937	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2938	if (@$queue) {
…		…
1974	} else {	2940	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2941	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2942	}
1977	}	2943	}
1978	},	2944	},
		2945	on_exticmd => sub {
		2946	my ($ns, $buf) = @_;
		2947
		2948	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2949
		2950	if (ref $msg) {
		2951	my ($type, $reply, @payload) =
		2952	"ARRAY" eq ref $msg
		2953	? @$msg
		2954	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2955
		2956	my @reply;
		2957
		2958	if (my $cb = $EXTICMD{$type}) {
		2959	@reply = $cb->($ns, @payload);
		2960	}
		2961
		2962	$ns->ext_reply ($reply, @reply)
		2963	if $reply;
		2964
		2965	} else {
		2966	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2967	}
		2968
		2969	cf::override;
		2970	},
1979	);	2971	);
1980		2972
1981	=item $client->async (\&cb)	2973	=item $client->async (\&cb)
1982		2974
1983	Create a new coroutine, running the specified callback. The coroutine will	2975	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	3016	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3017	our $safe_hole = new Safe::Hole;
2026		3018
2027	$SIG{FPE} = 'IGNORE';	3019	$SIG{FPE} = 'IGNORE';
2028		3020
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3021	$safe->permit_only (Opcode::opset qw(
		3022	:base_core :base_mem :base_orig :base_math
		3023	grepstart grepwhile mapstart mapwhile
		3024	sort time
		3025	));
2030		3026
2031	# here we export the classes and methods available to script code	3027	# here we export the classes and methods available to script code
2032		3028
2033	=pod	3029	=pod
2034		3030
2035	The following fucntions and emthods are available within a safe environment:	3031	The following functions and methods are available within a safe environment:
2036		3032
2037	cf::object contr pay_amount pay_player map	3033	cf::object
		3034	contr pay_amount pay_player map x y force_find force_add destroy
		3035	insert remove name archname title slaying race decrease_ob_nr
		3036
2038	cf::object::player player	3037	cf::object::player
2039	cf::player peaceful	3038	player
2040	cf::map trigger	3039
		3040	cf::player
		3041	peaceful
		3042
		3043	cf::map
		3044	trigger
2041		3045
2042	=cut	3046	=cut
2043		3047
2044	for (	3048	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3049	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3050	insert remove inv name archname title slaying race
		3051	decrease_ob_nr destroy)],
2046	["cf::object::player" => qw(player)],	3052	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3053	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	3054	["cf::map" => qw(trigger)],
2049	) {	3055	) {
2050	no strict 'refs';	3056	no strict 'refs';
…		…
2121	=back	3127	=back
2122		3128
2123	=cut	3129	=cut
2124		3130
2125	#############################################################################	3131	#############################################################################
		3132	# the server's init and main functions
2126		3133
2127	=head2 EXTENSION DATABASE SUPPORT	3134	sub load_facedata($) {
		3135	my ($path) = @_;
2128		3136
2129	Crossfire maintains a very simple database for extension use. It can	3137	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3138	# for this (global event?)
2131	excludes objects.	3139	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3140
2133	The parameter C<$family> should best start with the name of the extension	3141	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3142
2136	=over 4	3143	warn "loading facedata from $path\n";
2137		3144
2138	=item $hashref = cf::db_get $family	3145	my $facedata;
		3146	0 < aio_load $path, $facedata
		3147	or die "$path: $!";
2139		3148
2140	Return a hashref for use by the extension C<$family>, which can be	3149	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3150
2144	=item $value = cf::db_get $family => $key	3151	$facedata->{version} == 2
		3152	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3153
2146	Returns a single value from the database	3154	# patch in the exptable
2147		3155	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3156	type => FT_RSRC,
2149		3157	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3158	};
		3159	cf::cede_to_tick;
2199		3160
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3161	{
		3162	my $faces = $facedata->{faceinfo};
2204		3163
2205	sub db_get($;$) {	3164	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3165	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210		3166
2211	sub db_put($$;$) {	3167	cf::face::set_visibility $idx, $info->{visibility};
2212	if (@_ >= 3) {	3168	cf::face::set_magicmap $idx, $info->{magicmap};
2213	$DB->{$_[0]}{$_[1]} = $_[2];	3169	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2214	} else {	3170	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219		3171
2220	cf::global->attach (	3172	cf::cede_to_tick;
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3173	}
2225	);
2226	}
2227		3174
2228	#############################################################################	3175	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3176	next unless $info->{smooth};
2230		3177
2231	sub cfg_load {	3178	my $idx = cf::face::find $face
		3179	or next;
		3180
		3181	if (my $smooth = cf::face::find $info->{smooth}) {
		3182	cf::face::set_smooth $idx, $smooth;
		3183	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3184	} else {
		3185	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3186	}
		3187
		3188	cf::cede_to_tick;
		3189	}
		3190	}
		3191
		3192	{
		3193	my $anims = $facedata->{animinfo};
		3194
		3195	while (my ($anim, $info) = each %$anims) {
		3196	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3197	cf::cede_to_tick;
		3198	}
		3199
		3200	cf::anim::invalidate_all; # d'oh
		3201	}
		3202
		3203	{
		3204	# TODO: for gcfclient pleasure, we should give resources
		3205	# that gcfclient doesn't grok a >10000 face index.
		3206	my $res = $facedata->{resource};
		3207
		3208	while (my ($name, $info) = each %$res) {
		3209	if (defined $info->{type}) {
		3210	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3211	my $data;
		3212
		3213	if ($info->{type} & 1) {
		3214	# prepend meta info
		3215
		3216	my $meta = $enc->encode ({
		3217	name => $name,
		3218	%{ $info->{meta} || {} },
		3219	});
		3220
		3221	$data = pack "(w/a*)*", $meta, $info->{data};
		3222	} else {
		3223	$data = $info->{data};
		3224	}
		3225
		3226	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3227	cf::face::set_type $idx, $info->{type};
		3228	} else {
		3229	$RESOURCE{$name} = $info;
		3230	}
		3231
		3232	cf::cede_to_tick;
		3233	}
		3234	}
		3235
		3236	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3237
		3238	1
		3239	}
		3240
		3241	cf::global->attach (on_resource_update => sub {
		3242	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3243	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3244
		3245	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3246	my $sound = $soundconf->{compat}[$_]
		3247	or next;
		3248
		3249	my $face = cf::face::find "sound/$sound->[1]";
		3250	cf::sound::set $sound->[0] => $face;
		3251	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3252	}
		3253
		3254	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3255	my $face = cf::face::find "sound/$v";
		3256	cf::sound::set $k => $face;
		3257	}
		3258	}
		3259	});
		3260
		3261	register_exticmd fx_want => sub {
		3262	my ($ns, $want) = @_;
		3263
		3264	while (my ($k, $v) = each %$want) {
		3265	$ns->fx_want ($k, $v);
		3266	}
		3267	};
		3268
		3269	sub reload_regions {
		3270	# HACK to clear player env face cache, we need some signal framework
		3271	# for this (global event?)
		3272	%ext::player_env::MUSIC_FACE_CACHE = ();
		3273
		3274	load_resource_file "$MAPDIR/regions"
		3275	or die "unable to load regions file\n";
		3276
		3277	for (cf::region::list) {
		3278	$_->{match} = qr/$_->{match}/
		3279	if exists $_->{match};
		3280	}
		3281	}
		3282
		3283	sub reload_facedata {
		3284	load_facedata "$DATADIR/facedata"
		3285	or die "unable to load facedata\n";
		3286	}
		3287
		3288	sub reload_archetypes {
		3289	load_resource_file "$DATADIR/archetypes"
		3290	or die "unable to load archetypes\n";
		3291	#d# NEED to laod twice to resolve forward references
		3292	# this really needs to be done in an extra post-pass
		3293	# (which needs to be synchronous, so solve it differently)
		3294	load_resource_file "$DATADIR/archetypes"
		3295	or die "unable to load archetypes\n";
		3296	}
		3297
		3298	sub reload_treasures {
		3299	load_resource_file "$DATADIR/treasures"
		3300	or die "unable to load treasurelists\n";
		3301	}
		3302
		3303	sub reload_resources {
		3304	warn "reloading resource files...\n";
		3305
		3306	reload_regions;
		3307	reload_facedata;
		3308	#reload_archetypes;#d#
		3309	reload_archetypes;
		3310	reload_treasures;
		3311
		3312	warn "finished reloading resource files\n";
		3313	}
		3314
		3315	sub init {
		3316	reload_resources;
		3317	}
		3318
		3319	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3320	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3321	or return;
2234		3322
2235	local $/;	3323	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3324	*CFG = YAML::Load <$fh>;
2237		3325
2238	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3326	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2239		3327
2240	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3328	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2241	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3329	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2251		3339
2252	sub main {	3340	sub main {
2253	# we must not ever block the main coroutine	3341	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3342	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3343	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2256	async { Event::one_event };	3344	(async {
		3345	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3346	EV::loop EV::LOOP_ONESHOT;
		3347	})->prio (Coro::PRIO_MAX);
2257	};	3348	};
2258		3349
2259	cfg_load;	3350	reload_config;
2260	db_load;	3351	db_init;
2261	load_extensions;	3352	load_extensions;
		3353
		3354	$TICK_WATCHER->start;
		3355	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2262	Event::loop;	3356	EV::loop;
2263	}	3357	}
2264		3358
2265	#############################################################################	3359	#############################################################################
2266	# initialisation and cleanup	3360	# initialisation and cleanup
2267		3361
2268	# install some emergency cleanup handlers	3362	# install some emergency cleanup handlers
2269	BEGIN {	3363	BEGIN {
		3364	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3365	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3366	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3367	cf::cleanup "SIG$signal";
2276	},
2277	);	3368	};
		3369	}
		3370	}
		3371
		3372	sub write_runtime {
		3373	my $runtime = "$LOCALDIR/runtime";
		3374
		3375	# first touch the runtime file to show we are still running:
		3376	# the fsync below can take a very very long time.
		3377
		3378	IO::AIO::aio_utime $runtime, undef, undef;
		3379
		3380	my $guard = cf::lock_acquire "write_runtime";
		3381
		3382	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3383	or return;
		3384
		3385	my $value = $cf::RUNTIME + 90 + 10;
		3386	# 10 is the runtime save interval, for a monotonic clock
		3387	# 60 allows for the watchdog to kill the server.
		3388
		3389	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3390	and return;
		3391
		3392	# always fsync - this file is important
		3393	aio_fsync $fh
		3394	and return;
		3395
		3396	# touch it again to show we are up-to-date
		3397	aio_utime $fh, undef, undef;
		3398
		3399	close $fh
		3400	or return;
		3401
		3402	aio_rename "$runtime~", $runtime
		3403	and return;
		3404
		3405	warn "runtime file written.\n";
		3406
2278	}	3407	1
2279	}	3408	}
2280		3409
2281	sub emergency_save() {	3410	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3411	my $freeze_guard = cf::freeze_mainloop;
2283		3412
2284	warn "enter emergency perl save\n";	3413	warn "enter emergency perl save\n";
2285		3414
2286	cf::sync_job {	3415	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3416	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3417	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3418	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3419	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3420	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3421	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3422	$pl->valid or next;
		3423	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3424	$pl->save;
2295	}	3425	}
2296	warn "end emergency player save\n";	3426	warn "end emergency player save\n";
2297		3427
2298	warn "begin emergency map save\n";	3428	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3430	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3431	$map->valid or next;
2302	$map->save;	3432	$map->save;
2303	}	3433	}
2304	warn "end emergency map save\n";	3434	warn "end emergency map save\n";
		3435
		3436	warn "begin emergency database checkpoint\n";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438	warn "end emergency database checkpoint\n";
2305	};	3439	};
2306		3440
2307	warn "leave emergency perl save\n";	3441	warn "leave emergency perl save\n";
2308	}	3442	}
2309		3443
		3444	sub post_cleanup {
		3445	my ($make_core) = @_;
		3446
		3447	warn Carp::longmess "post_cleanup backtrace"
		3448	if $make_core;
		3449	}
		3450
2310	sub reload() {	3451	sub do_reload_perl() {
2311	# can/must only be called in main	3452	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3453	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3454	warn "can only reload from main coroutine";
2314	return;	3455	return;
2315	}	3456	}
2316		3457
2317	warn "reloading...";	3458	warn "reloading...";
2318		3459
2319	warn "freezing server";	3460	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3461
		3462	cf::sync_job {
		3463	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3464	cf::emergency_save;
		3465	cf::write_runtime; # external watchdog should not bark
2322		3466
2323	warn "sync database to disk";	3467	warn "syncing database to disk";
2324	cf::db_sync;	3468	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3469
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3470	# if anything goes wrong in here, we should simply crash as we already saved
2329		3471
2330	warn "cancel all watchers";	3472	warn "flushing outstanding aio requests";
2331	for (Event::all_watchers) {	3473	for (;;) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3474	BDB::flush;
		3475	IO::AIO::flush;
		3476	Coro::cede_notself;
		3477	last unless IO::AIO::nreqs || BDB::nreqs;
		3478	warn "iterate...";
2333	}	3479	}
2334		3480
		3481	++$RELOAD;
		3482
2335	warn "cancel all extension coros";	3483	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3484	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3485	%EXT_CORO = ();
2338		3486
2339	warn "remove commands";	3487	warn "removing commands";
2340	%COMMAND = ();	3488	%COMMAND = ();
2341		3489
2342	warn "remove ext commands";	3490	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3491	%EXTCMD = ();
		3492	%EXTICMD = ();
2344		3493
2345	warn "unload/nuke all extensions";	3494	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3495	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3496	warn "... unloading $pkg";
2348		3497
2349	if (my $cb = $pkg->can ("unload")) {	3498	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3499	eval {
…		…
2355		3504
2356	warn "... nuking $pkg";	3505	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3506	Symbol::delete_package $pkg;
2358	}	3507	}
2359		3508
2360	warn "unload all perl modules loaded from $LIBDIR";	3509	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3510	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3511	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3512
2364	warn "removing <$k>";	3513	warn "... unloading $k";
2365	delete $INC{$k};	3514	delete $INC{$k};
2366		3515
2367	$k =~ s/\.pm$//;	3516	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3517	$k =~ s/\//::/g;
2369		3518
…		…
2372	}	3521	}
2373		3522
2374	Symbol::delete_package $k;	3523	Symbol::delete_package $k;
2375	}	3524	}
2376		3525
2377	warn "get rid of safe::, as good as possible";	3526	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3527	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3528	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3529
2381	warn "unload cf.pm \"a bit\"";	3530	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3531	delete $INC{"cf.pm"};
		3532	delete $INC{"cf/pod.pm"};
2383		3533
2384	# don't, removes xs symbols, too,	3534	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3535	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3536	#Symbol::delete_package __PACKAGE__;
2387		3537
		3538	warn "unload completed, starting to reload now";
		3539
2388	warn "reloading cf.pm";	3540	warn "reloading cf.pm";
2389	require cf;	3541	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3542	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3543
2392	warn "load config and database again";	3544	warn "loading config and database again";
2393	cf::cfg_load;	3545	cf::reload_config;
2394	cf::db_load;
2395		3546
2396	warn "load extensions";	3547	warn "loading extensions";
2397	cf::load_extensions;	3548	cf::load_extensions;
2398		3549
2399	warn "reattach attachments to objects/players";	3550	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3551	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3552	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3553	reattach $_ for values %MAP;
		3554	warn "reattaching attachments to players";
		3555	reattach $_ for values %PLAYER;
		3556
		3557	warn "leaving sync_job";
		3558
		3559	1
		3560	} or do {
		3561	warn $@;
		3562	cf::cleanup "error while reloading, exiting.";
2403	};	3563	};
2404
2405	if ($@) {
2406	warn $@;
2407	warn "error while reloading, exiting.";
2408	exit 1;
2409	}
2410		3564
2411	warn "reloaded";	3565	warn "reloaded";
2412	};	3566	};
2413		3567
2414	#############################################################################	3568	our $RELOAD_WATCHER; # used only during reload
2415		3569
2416	unless ($LINK_MAP) {	3570	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3571	# doing reload synchronously and two reloads happen back-to-back,
		3572	# coro crashes during coro_state_free->destroy here.
2418		3573
2419	$LINK_MAP->width (41);	3574	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2420	$LINK_MAP->height (41);	3575	do_reload_perl;
2421	$LINK_MAP->alloc;	3576	undef $RELOAD_WATCHER;
2422	$LINK_MAP->path ("{link}");	3577	};
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3578	}
2456		3579
2457	register_command "reload" => sub {	3580	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3581	my ($who, $arg) = @_;
2459		3582
2460	if ($who->flag (FLAG_WIZ)) {	3583	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3584	$who->message ("reloading server.");
		3585	async {
		3586	$Coro::current->{desc} = "perl_reload";
		3587	reload_perl;
		3588	};
2464	}	3589	}
2465	};	3590	};
2466		3591
2467	unshift @INC, $LIBDIR;	3592	unshift @INC, $LIBDIR;
2468		3593
2469	$TICK_WATCHER = Event->timer (	3594	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		3595
		3596	our @WAIT_FOR_TICK;
		3597	our @WAIT_FOR_TICK_BEGIN;
		3598
		3599	sub wait_for_tick {
		3600	return unless $TICK_WATCHER->is_active;
		3601	return if $Coro::current == $Coro::main;
		3602
		3603	my $signal = new Coro::Signal;
		3604	push @WAIT_FOR_TICK, $signal;
		3605	$signal->wait;
		3606	}
		3607
		3608	sub wait_for_tick_begin {
		3609	return unless $TICK_WATCHER->is_active;
		3610	return if $Coro::current == $Coro::main;
		3611
		3612	my $signal = new Coro::Signal;
		3613	push @WAIT_FOR_TICK_BEGIN, $signal;
		3614	$signal->wait;
		3615	}
		3616
		3617	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3618	if ($Coro::current != $Coro::main) {
		3619	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3620	unless ++$bug_warning > 10;
		3621	return;
		3622	}
		3623
		3624	$NOW = $tick_start = EV::now;
		3625
2477	cf::server_tick; # one server iteration	3626	cf::server_tick; # one server iteration
		3627
2478	$RUNTIME += $TICK;	3628	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3629	$NEXT_TICK = $_[0]->at;
2480		3630
2481	$WAIT_FOR_TICK->broadcast;	3631	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3632	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2483		3633	Coro::async_pool {
2484	# if we are delayed by four ticks or more, skip them all	3634	$Coro::current->{desc} = "runtime saver";
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2486
2487	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;
2489	},
2490	);
2491
2492	IO::AIO::max_poll_time $TICK * 0.2;
2493
2494	Event->io (
2495	fd => IO::AIO::poll_fileno,
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,
2504	after => 0,
2505	interval => 10,
2506	cb => sub {
2507	(Coro::unblock_sub {
2508	write_runtime	3635	write_runtime
2509	or warn "ERROR: unable to write runtime file: $!";	3636	or warn "ERROR: unable to write runtime file: $!";
2510	})->();	3637	};
2511	},	3638	}
2512	);	3639
		3640	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3641	$sig->send;
		3642	}
		3643	while (my $sig = shift @WAIT_FOR_TICK) {
		3644	$sig->send;
		3645	}
		3646
		3647	$LOAD = ($NOW - $tick_start) / $TICK;
		3648	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3649
		3650	_post_tick;
		3651	};
		3652	$TICK_WATCHER->priority (EV::MAXPRI);
		3653
		3654	{
		3655	# configure BDB
		3656
		3657	BDB::min_parallel 8;
		3658	BDB::max_poll_reqs $TICK * 0.1;
		3659	$Coro::BDB::WATCHER->priority (1);
		3660
		3661	unless ($DB_ENV) {
		3662	$DB_ENV = BDB::db_env_create;
		3663	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3664	| BDB::LOG_AUTOREMOVE, 1);
		3665	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3666	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3667
		3668	cf::sync_job {
		3669	eval {
		3670	BDB::db_env_open
		3671	$DB_ENV,
		3672	$BDBDIR,
		3673	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3674	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3675	0666;
		3676
		3677	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3678	};
		3679
		3680	cf::cleanup "db_env_open(db): $@" if $@;
		3681	};
		3682	}
		3683
		3684	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3685	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3686	};
		3687	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3688	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3689	};
		3690	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3691	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3692	};
		3693	}
		3694
		3695	{
		3696	# configure IO::AIO
		3697
		3698	IO::AIO::min_parallel 8;
		3699	IO::AIO::max_poll_time $TICK * 0.1;
		3700	$Coro::AIO::WATCHER->priority (1);
		3701	}
		3702
		3703	my $_log_backtrace;
		3704
		3705	sub _log_backtrace {
		3706	my ($msg, @addr) = @_;
		3707
		3708	$msg =~ s/\n//;
		3709
		3710	# limit the # of concurrent backtraces
		3711	if ($_log_backtrace < 2) {
		3712	++$_log_backtrace;
		3713	async {
		3714	$Coro::current->{desc} = "abt $msg";
		3715
		3716	my @bt = fork_call {
		3717	@addr = map { sprintf "%x", $_ } @addr;
		3718	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3719	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3720	or die "addr2line: $!";
		3721
		3722	my @funcs;
		3723	my @res = <$fh>;
		3724	chomp for @res;
		3725	while (@res) {
		3726	my ($func, $line) = splice @res, 0, 2, ();
		3727	push @funcs, "[$func] $line";
		3728	}
		3729
		3730	@funcs
		3731	};
		3732
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] $_\n" for @bt;
		3735	--$_log_backtrace;
		3736	};
		3737	} else {
		3738	LOG llevInfo, "[ABT] $msg\n";
		3739	LOG llevInfo, "[ABT] [suppressed]\n";
		3740	}
		3741	}
		3742
		3743	# load additional modules
		3744	use cf::pod;
2513		3745
2514	END { cf::emergency_save }	3746	END { cf::emergency_save }
2515		3747
2516	1	3748	1
2517		3749

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