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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.408 by root, Mon Jan 14 10:12:12 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
		32	use YAML ();
22	use IO::AIO 2.31 ();	33	use IO::AIO 2.51 ();
23	use YAML::Syck ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;
30
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	44	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		45
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	46	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		47
35	our %COMMAND = ();	48	our %COMMAND = ();
36	our %COMMAND_TIME = ();	49	our %COMMAND_TIME = ();
		50
		51	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	52	our %EXTCMD = ();
		53	our %EXTICMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71	our %RESOURCE;
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $BDB_DEADLOCK_WATCHER;
		82	our $BDB_CHECKPOINT_WATCHER;
		83	our $BDB_TRICKLE_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
		90	our $NOW;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	94	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	95
56	our %EXT_CORO;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
77		119
78	#############################################################################	120	#############################################################################
79		121
80	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
81		123
…		…
88	=item $cf::RUNTIME	130	=item $cf::RUNTIME
89		131
90	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
91	every server tick.	133	every server tick.
92		134
93	=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
94		138
95	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		143
98	=item $cf::NOW	144	=item $cf::NOW
99		145
100	The time of the last (current) server tick.	146	The time of the last (current) server tick.
101		147
102	=item $cf::TICK	148	=item $cf::TICK
103		149
104	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
105		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
106	=item %cf::CFG	162	=item %cf::CFG
107		163
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
110		178
111	=back	179	=back
112		180
113	=cut	181	=cut
114		182
115	BEGIN {	183	BEGIN {
116	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	185	my $msg = join "", @_;
118	utf8::encode $msg;
119		186
120	$msg .= "\n"	187	$msg .= "\n"
121	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
122		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
123	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
124	};	193	};
125	}	194	}
		195
		196	$Coro::State::DIEHOOK = sub {
		197	warn Carp::longmess $_[0];
		198	Coro::terminate;
		199	};
126		200
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	201	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	202	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	203	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	204	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	205	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		206	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	207	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		208
134	# we bless all objects into (empty) derived classes to force a method lookup	209	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	210	# within the Safe compartment.
136	for my $pkg (qw(	211	for my $pkg (qw(
137	cf::global cf::attachable	212	cf::global cf::attachable
…		…
142	)) {	217	)) {
143	no strict 'refs';	218	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	219	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	220	}
146		221
147	$Event::DIED = sub {	222	$EV::DIED = sub {
148	warn "error in event callback: @_";	223	warn "error in event callback: @_";
149	};	224	};
150		225
151	my %ext_pkg;	226	#############################################################################
152	my @exts;
153	my @hook;
154		227
155	=head2 UTILITY FUNCTIONS	228	=head2 UTILITY FUNCTIONS
156		229
157	=over 4	230	=over 4
158		231
159	=cut	232	=item dumpval $ref
160		233
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	234	=cut
162		235
		236	sub dumpval {
		237	eval {
		238	local $SIG{__DIE__};
		239	my $d;
		240	if (1) {
		241	$d = new Data::Dumper([$_[0]], ["*var"]);
		242	$d->Terse(1);
		243	$d->Indent(2);
		244	$d->Quotekeys(0);
		245	$d->Useqq(1);
		246	#$d->Bless(...);
		247	$d->Seen($_[1]) if @_ > 1;
		248	$d = $d->Dump();
		249	}
		250	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		251	$d
		252	} || "[unable to dump $_[0]: '$@']";
		253	}
		254
163	=item $ref = cf::from_json $json	255	=item $ref = cf::decode_json $json
164		256
165	Converts a JSON string into the corresponding perl data structure.	257	Converts a JSON string into the corresponding perl data structure.
166		258
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	259	=item $json = cf::encode_json $ref
175		260
176	Converts a perl data structure into its JSON representation.	261	Converts a perl data structure into its JSON representation.
177		262
178	=cut	263	=cut
179		264
180	sub to_json($) {	265	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		266
185	=item my $guard = cf::guard { BLOCK }	267	sub encode_json($) { $json_coder->encode ($_[0]) }
186		268	sub decode_json($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		269
207	=item cf::lock_wait $string	270	=item cf::lock_wait $string
208		271
209	Wait until the given lock is available. See cf::lock_acquire.	272	Wait until the given lock is available. See cf::lock_acquire.
210		273
211	=item my $lock = cf::lock_acquire $string	274	=item my $lock = cf::lock_acquire $string
212		275
213	Wait until the given lock is available and then acquires it and returns	276	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	277	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	278	for example when the coroutine gets canceled), the lock is automatically
216	returned.	279	returned.
217		280
		281	Locks are *not* recursive, locking from the same coro twice results in a
		282	deadlocked coro.
		283
218	Lock names should begin with a unique identifier (for example, find_map	284	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	285	uses map_find and cf::map::load uses map_load).
		286
		287	=item $locked = cf::lock_active $string
		288
		289	Return true if the lock is currently active, i.e. somebody has locked it.
220		290
221	=cut	291	=cut
222		292
223	our %LOCK;	293	our %LOCK;
		294	our %LOCKER;#d#
224		295
225	sub lock_wait($) {	296	sub lock_wait($) {
226	my ($key) = @_;	297	my ($key) = @_;
		298
		299	if ($LOCKER{$key} == $Coro::current) {#d#
		300	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		301	return;#d#
		302	}#d#
227		303
228	# wait for lock, if any	304	# wait for lock, if any
229	while ($LOCK{$key}) {	305	while ($LOCK{$key}) {
230	push @{ $LOCK{$key} }, $Coro::current;	306	push @{ $LOCK{$key} }, $Coro::current;
231	Coro::schedule;	307	Coro::schedule;
…		…
237		313
238	# wait, to be sure we are not locked	314	# wait, to be sure we are not locked
239	lock_wait $key;	315	lock_wait $key;
240		316
241	$LOCK{$key} = [];	317	$LOCK{$key} = [];
		318	$LOCKER{$key} = $Coro::current;#d#
242		319
243	cf::guard {	320	Coro::guard {
		321	delete $LOCKER{$key};#d#
244	# wake up all waiters, to be on the safe side	322	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	323	$_->ready for @{ delete $LOCK{$key} };
246	}	324	}
247	}	325	}
248		326
		327	sub lock_active($) {
		328	my ($key) = @_;
		329
		330	! ! $LOCK{$key}
		331	}
		332
		333	sub freeze_mainloop {
		334	return unless $TICK_WATCHER->is_active;
		335
		336	my $guard = Coro::guard {
		337	$TICK_WATCHER->start;
		338	};
		339	$TICK_WATCHER->stop;
		340	$guard
		341	}
		342
		343	=item cf::periodic $interval, $cb
		344
		345	Like EV::periodic, but randomly selects a starting point so that the actions
		346	get spread over timer.
		347
		348	=cut
		349
		350	sub periodic($$) {
		351	my ($interval, $cb) = @_;
		352
		353	my $start = rand List::Util::min 180, $interval;
		354
		355	EV::periodic $start, $interval, 0, $cb
		356	}
		357
		358	=item cf::get_slot $time[, $priority[, $name]]
		359
		360	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		361	This call blocks and returns only when you have at least C<$time> seconds
		362	of cpu time till the next tick. The slot is only valid till the next cede.
		363
		364	The optional C<$name> can be used to identify the job to run. It might be
		365	used for statistical purposes and should identify the same time-class.
		366
		367	Useful for short background jobs.
		368
		369	=cut
		370
		371	our @SLOT_QUEUE;
		372	our $SLOT_QUEUE;
		373
		374	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		375	$SLOT_QUEUE = Coro::async {
		376	$Coro::current->desc ("timeslot manager");
		377
		378	my $signal = new Coro::Signal;
		379
		380	while () {
		381	next_job:
		382	my $avail = cf::till_tick;
		383	if ($avail > 0.01) {
		384	for (0 .. $#SLOT_QUEUE) {
		385	if ($SLOT_QUEUE[$_][0] < $avail) {
		386	my $job = splice @SLOT_QUEUE, $_, 1, ();
		387	$job->[2]->send;
		388	Coro::cede;
		389	goto next_job;
		390	}
		391	}
		392	}
		393
		394	if (@SLOT_QUEUE) {
		395	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		396	push @cf::WAIT_FOR_TICK, $signal;
		397	$signal->wait;
		398	} else {
		399	Coro::schedule;
		400	}
		401	}
		402	};
		403
		404	sub get_slot($;$$) {
		405	my ($time, $pri, $name) = @_;
		406
		407	$time = $TICK * .6 if $time > $TICK * .6;
		408	my $sig = new Coro::Signal;
		409
		410	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		411	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		412	$SLOT_QUEUE->ready;
		413	$sig->wait;
		414	}
		415
249	=item cf::async { BLOCK }	416	=item cf::async { BLOCK }
250		417
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	418	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	419	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		420	thing you are allowed to do is call C<prio> on it.
253		421
254	=cut	422	=cut
255		423
256	sub async(&) {	424	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		425
265	=item cf::sync_job { BLOCK }	426	=item cf::sync_job { BLOCK }
266		427
267	The design of crossfire+ requires that the main coro ($Coro::main) is	428	The design of Deliantra requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	429	is always able to handle events or runnable, as Deliantra is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	430	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		431	acceptable.
270		432
271	If it must be done, put the blocking parts into C<sync_job>. This will run	433	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	434	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	435	server will be frozen during this time, so the block should either finish
274	fast or be very important.	436	fast or be very important.
…		…
277		439
278	sub sync_job(&) {	440	sub sync_job(&) {
279	my ($job) = @_;	441	my ($job) = @_;
280		442
281	if ($Coro::current == $Coro::main) {	443	if ($Coro::current == $Coro::main) {
		444	my $time = EV::time;
		445
282	# this is the main coro, too bad, we have to block	446	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	447	# till the operation succeeds, freezing the server :/
284		448
		449	LOG llevError, Carp::longmess "sync job";#d#
		450
285	# TODO: use suspend/resume instead	451	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	452	# (but this is cancel-safe)
287	local $FREEZE = 1;	453	my $freeze_guard = freeze_mainloop;
288		454
289	my $busy = 1;	455	my $busy = 1;
290	my @res;	456	my @res;
291		457
292	(Coro::async {	458	(async {
		459	$Coro::current->desc ("sync job coro");
293	@res = eval { $job->() };	460	@res = eval { $job->() };
294	warn $@ if $@;	461	warn $@ if $@;
295	undef $busy;	462	undef $busy;
296	})->prio (Coro::PRIO_MAX);	463	})->prio (Coro::PRIO_MAX);
297		464
298	while ($busy) {	465	while ($busy) {
		466	if (Coro::nready) {
299	Coro::cede_notself;	467	Coro::cede_notself;
300	Event::one_event unless Coro::nready;	468	} else {
		469	EV::loop EV::LOOP_ONESHOT;
301	}	470	}
		471	}
		472
		473	$time = EV::time - $time;
		474
		475	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		476	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		477
		478	$tick_start += $time; # do not account sync jobs to server load
302		479
303	wantarray ? @res : $res[0]	480	wantarray ? @res : $res[0]
304	} else {	481	} else {
305	# we are in another coroutine, how wonderful, everything just works	482	# we are in another coroutine, how wonderful, everything just works
306		483
307	$job->()	484	$job->()
308	}	485	}
309	}	486	}
310		487
311	=item $coro = cf::coro { BLOCK }	488	=item $coro = cf::async_ext { BLOCK }
312		489
313	Creates and returns a new coro. This coro is automcatially being canceled	490	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	491	extension calling this is being unloaded.
315		492
316	=cut	493	=cut
317		494
318	sub coro(&) {	495	sub async_ext(&) {
319	my $cb = shift;	496	my $cb = shift;
320		497
321	my $coro = &cf::async ($cb);	498	my $coro = &Coro::async ($cb);
322		499
323	$coro->on_destroy (sub {	500	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	501	delete $EXT_CORO{$coro+0};
325	});	502	});
326	$EXT_CORO{$coro+0} = $coro;	503	$EXT_CORO{$coro+0} = $coro;
327		504
328	$coro	505	$coro
329	}	506	}
330		507
331	sub write_runtime {	508	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		509
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	510	Executes the given code block with the given arguments in a seperate
335	or return;	511	process, returning the results. Everything must be serialisable with
		512	Coro::Storable. May, of course, block. Note that the executed sub may
		513	never block itself or use any form of event handling.
336		514
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	515	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		516
341	aio_fsync $fh	517	sub fork_call(&@) {
342	and return;	518	my ($cb, @args) = @_;
343		519
344	close $fh	520	# we seemingly have to make a local copy of the whole thing,
345	or return;	521	# otherwise perl prematurely frees the stuff :/
		522	# TODO: investigate and fix (likely this will be rather laborious)
346		523
347	aio_rename "$runtime~", $runtime	524	my @res = Coro::Util::fork_eval {
348	and return;	525	reset_signals;
		526	&$cb
		527	}, @args;
349		528
		529	wantarray ? @res : $res[-1]
		530	}
		531
		532	=item $value = cf::db_get $family => $key
		533
		534	Returns a single value from the environment database.
		535
		536	=item cf::db_put $family => $key => $value
		537
		538	Stores the given C<$value> in the family. It can currently store binary
		539	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		540
		541	=item $db = cf::db_table "name"
		542
		543	Create and/or open a new database table. The string must not be "db" and must be unique
		544	within each server.
		545
		546	=cut
		547
		548	sub db_table($) {
		549	my ($name) = @_;
		550	my $db = BDB::db_create $DB_ENV;
		551
		552	eval {
		553	$db->set_flags (BDB::CHKSUM);
		554
		555	utf8::encode $name;
		556	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		557	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		558	cf::cleanup "db_open(db): $!" if $!;
		559	};
		560	cf::cleanup "db_open(db): $@" if $@;
		561
		562	$db
		563	}
		564
		565	our $DB;
		566
		567	sub db_init {
		568	cf::sync_job {
		569	$DB ||= db_table "db";
		570	};
		571	}
		572
		573	sub db_get($$) {
		574	my $key = "$_[0]/$_[1]";
		575
		576	cf::sync_job {
		577	BDB::db_get $DB, undef, $key, my $data;
		578
		579	$! ? ()
		580	: $data
350	1	581	}
		582	}
		583
		584	sub db_put($$$) {
		585	BDB::dbreq_pri 4;
		586	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		587	}
		588
		589	=item cf::cache $id => [$paths...], $processversion => $process
		590
		591	Generic caching function that returns the value of the resource $id,
		592	caching and regenerating as required.
		593
		594	This function can block.
		595
		596	=cut
		597
		598	sub cache {
		599	my ($id, $src, $processversion, $process) = @_;
		600
		601	my $meta =
		602	join "\x00",
		603	$processversion,
		604	map {
		605	aio_stat $_
		606	and Carp::croak "$_: $!";
		607
		608	($_, (stat _)[7,9])
		609	} @$src;
		610
		611	my $dbmeta = db_get cache => "$id/meta";
		612	if ($dbmeta ne $meta) {
		613	# changed, we may need to process
		614
		615	my @data;
		616	my $md5;
		617
		618	for (0 .. $#$src) {
		619	0 <= aio_load $src->[$_], $data[$_]
		620	or Carp::croak "$src->[$_]: $!";
		621	}
		622
		623	# if processing is expensive, check
		624	# checksum first
		625	if (1) {
		626	$md5 =
		627	join "\x00",
		628	$processversion,
		629	map {
		630	cf::cede_to_tick;
		631	($src->[$_], Digest::MD5::md5_hex $data[$_])
		632	} 0.. $#$src;
		633
		634
		635	my $dbmd5 = db_get cache => "$id/md5";
		636	if ($dbmd5 eq $md5) {
		637	db_put cache => "$id/meta", $meta;
		638
		639	return db_get cache => "$id/data";
		640	}
		641	}
		642
		643	my $t1 = Time::HiRes::time;
		644	my $data = $process->(\@data);
		645	my $t2 = Time::HiRes::time;
		646
		647	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		648
		649	db_put cache => "$id/data", $data;
		650	db_put cache => "$id/md5" , $md5;
		651	db_put cache => "$id/meta", $meta;
		652
		653	return $data;
		654	}
		655
		656	db_get cache => "$id/data"
		657	}
		658
		659	=item cf::datalog type => key => value, ...
		660
		661	Log a datalog packet of the given type with the given key-value pairs.
		662
		663	=cut
		664
		665	sub datalog($@) {
		666	my ($type, %kv) = @_;
		667	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	668	}
352		669
353	=back	670	=back
354		671
355	=cut	672	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		673
477	#############################################################################	674	#############################################################################
478		675
479	=head2 ATTACHABLE OBJECTS	676	=head2 ATTACHABLE OBJECTS
480		677
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	679	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	680	to it. All such attachable objects support the following methods.
484		681
485	In the following description, CLASS can be any of C<global>, C<object>	682	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	683	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	684	Deliantra).
488		685
489	=over 4	686	=over 4
490		687
491	=item $attachable->attach ($attachment, key => $value...)	688	=item $attachable->attach ($attachment, key => $value...)
492		689
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	803	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	804	our @CB_MAP = ();
608		805
609	my %attachment;	806	my %attachment;
610		807
		808	sub cf::attachable::thawer_merge {
		809	# simply override everything except _meta
		810	local $_[0]{_meta};
		811	%{$_[0]} = %{$_[1]};
		812	}
		813
611	sub _attach_cb($$$$) {	814	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	815	my ($registry, $event, $prio, $cb) = @_;
613		816
614	use sort 'stable';	817	use sort 'stable';
615		818
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	852	$registry = $CB_TYPE[$object_type] ||= [];
650		853
651	} elsif ($type eq "subtype") {	854	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	855	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	856	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	857	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		858
656	} elsif ($type eq "package") {	859	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	860	my $pkg = shift @arg;
658		861
659	while (my ($name, $id) = each %cb_id) {	862	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	891	_attach $registry, $klass, @attach;
689	}	892	}
690		893
691	$obj->{$name} = \%arg;	894	$obj->{$name} = \%arg;
692	} else {	895	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	896	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	897	}
695		898
696	$obj->{_attachment}{$name} = undef;	899	$obj->{_attachment}{$name} = undef;
697	}	900	}
698		901
…		…
700	if (ref $_[0]) {	903	if (ref $_[0]) {
701	_object_attach @_;	904	_object_attach @_;
702	} else {	905	} else {
703	_attach shift->_attach_registry, @_;	906	_attach shift->_attach_registry, @_;
704	}	907	}
		908	_recalc_want;
705	};	909	};
706		910
707	# all those should be optimised	911	# all those should be optimised
708	sub cf::attachable::detach {	912	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	913	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	916	delete $obj->{_attachment}{$name};
713	reattach ($obj);	917	reattach ($obj);
714	} else {	918	} else {
715	Carp::croak "cannot, currently, detach class attachments";	919	Carp::croak "cannot, currently, detach class attachments";
716	}	920	}
		921	_recalc_want;
717	};	922	};
718		923
719	sub cf::attachable::attached {	924	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	925	my ($obj, $name) = @_;
721		926
…		…
736	";	941	";
737	die if $@;	942	die if $@;
738	}	943	}
739		944
740	our $override;	945	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	946	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		947
743	sub override {	948	sub override {
744	$override = 1;	949	$override = 1;
745	@invoke_results = ();	950	@INVOKE_RESULTS = (@_);
746	}	951	}
747		952
748	sub do_invoke {	953	sub do_invoke {
749	my $event = shift;	954	my $event = shift;
750	my $callbacks = shift;	955	my $callbacks = shift;
751		956
752	@invoke_results = ();	957	@INVOKE_RESULTS = ();
753		958
754	local $override;	959	local $override;
755		960
756	for (@$callbacks) {	961	for (@$callbacks) {
757	eval { &{$_->[1]} };	962	eval { &{$_->[1]} };
…		…
766	}	971	}
767		972
768	0	973	0
769	}	974	}
770		975
771	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	976	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772		977
773	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	978	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774		979
775	Generate an object-specific event with the given arguments.	980	Generate an object-specific event with the given arguments.
776		981
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	982	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	983	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	984	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		985
781	=back	986	=back
782		987
783	=cut	988	=cut
784		989
785	#############################################################################	990	#############################################################################
786	# object support	991	# object support
		992
		993	sub _object_equal($$);
		994	sub _object_equal($$) {
		995	my ($a, $b) = @_;
		996
		997	return 0 unless (ref $a) eq (ref $b);
		998
		999	if ("HASH" eq ref $a) {
		1000	my @ka = keys %$a;
		1001	my @kb = keys %$b;
		1002
		1003	return 0 if @ka != @kb;
		1004
		1005	for (0 .. $#ka) {
		1006	return 0 unless $ka[$_] eq $kb[$_];
		1007	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1008	}
		1009
		1010	} elsif ("ARRAY" eq ref $a) {
		1011
		1012	return 0 if @$a != @$b;
		1013
		1014	for (0 .. $#$a) {
		1015	return 0 unless _object_equal $a->[$_], $b->[$_];
		1016	}
		1017
		1018	} elsif ($a ne $b) {
		1019	return 0;
		1020	}
		1021
		1022	1
		1023	}
		1024
		1025	our $SLOW_MERGES;#d#
		1026	sub _can_merge {
		1027	my ($ob1, $ob2) = @_;
		1028
		1029	++$SLOW_MERGES;#d#
		1030
		1031	# we do the slow way here
		1032	return _object_equal $ob1, $ob2
		1033	}
787		1034
788	sub reattach {	1035	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	1036	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	1037	my ($obj) = @_;
		1038
		1039	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		1040
792	my $registry = $obj->registry;	1041	my $registry = $obj->registry;
793		1042
794	@$registry = ();	1043	@$registry = ();
795		1044
…		…
810	cf::attachable->attach (	1059	cf::attachable->attach (
811	prio => -1000000,	1060	prio => -1000000,
812	on_instantiate => sub {	1061	on_instantiate => sub {
813	my ($obj, $data) = @_;	1062	my ($obj, $data) = @_;
814		1063
815	$data = from_json $data;	1064	$data = decode_json $data;
816		1065
817	for (@$data) {	1066	for (@$data) {
818	my ($name, $args) = @$_;	1067	my ($name, $args) = @$_;
819		1068
820	$obj->attach ($name, %{$args || {} });	1069	$obj->attach ($name, %{$args || {} });
…		…
836	sub object_freezer_save {	1085	sub object_freezer_save {
837	my ($filename, $rdata, $objs) = @_;	1086	my ($filename, $rdata, $objs) = @_;
838		1087
839	sync_job {	1088	sync_job {
840	if (length $$rdata) {	1089	if (length $$rdata) {
		1090	utf8::decode (my $decname = $filename);
841	warn sprintf "saving %s (%d,%d)\n",	1091	warn sprintf "saving %s (%d,%d)\n",
842	$filename, length $$rdata, scalar @$objs;	1092	$decname, length $$rdata, scalar @$objs;
843		1093
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1094	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1095	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1096	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1097	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1098	close $fh;
849		1099
850	if (@$objs) {	1100	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1101	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1102	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1103	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1104	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1105	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1106	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1107	aio_rename "$filename.pst~", "$filename.pst";
858	}	1108	}
859	} else {	1109	} else {
860	aio_unlink "$filename.pst";	1110	aio_unlink "$filename.pst";
…		…
866	}	1116	}
867	} else {	1117	} else {
868	aio_unlink $filename;	1118	aio_unlink $filename;
869	aio_unlink "$filename.pst";	1119	aio_unlink "$filename.pst";
870	}	1120	}
871	}	1121	};
872	}	1122	}
873		1123
874	sub object_freezer_as_string {	1124	sub object_freezer_as_string {
875	my ($rdata, $objs) = @_;	1125	my ($rdata, $objs) = @_;
876		1126
…		…
888	or return;	1138	or return;
889		1139
890	unless (aio_stat "$filename.pst") {	1140	unless (aio_stat "$filename.pst") {
891	(aio_load "$filename.pst", $av) >= 0	1141	(aio_load "$filename.pst", $av) >= 0
892	or return;	1142	or return;
		1143
893	$av = eval { (Storable::thaw $av)->{objs} };	1144	my $st = eval { Coro::Storable::thaw $av };
		1145	$av = $st->{objs};
894	}	1146	}
895		1147
		1148	utf8::decode (my $decname = $filename);
896	warn sprintf "loading %s (%d)\n",	1149	warn sprintf "loading %s (%d,%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1150	$decname, length $data, scalar @{$av || []};
		1151
898	return ($data, $av);	1152	($data, $av)
899	}	1153	}
		1154
		1155	=head2 COMMAND CALLBACKS
		1156
		1157	=over 4
		1158
		1159	=cut
900		1160
901	#############################################################################	1161	#############################################################################
902	# command handling &c	1162	# command handling &c
903		1163
904	=item cf::register_command $name => \&callback($ob,$args);	1164	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1177	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1178	}
919		1179
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1180	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1181
922	Register a callbackf ro execution when the client sends an extcmd packet.	1182	Register a callback for execution when the client sends an (synchronous)
		1183	extcmd packet. Ext commands will be processed in the order they are
		1184	received by the server, like other user commands. The first argument is
		1185	the logged-in player. Ext commands can only be processed after a player
		1186	has logged in successfully.
923		1187
924	If the callback returns something, it is sent back as if reply was being	1188	If the callback returns something, it is sent back as if reply was being
925	called.	1189	called.
926		1190
		1191	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1192
		1193	Register a callback for execution when the client sends an (asynchronous)
		1194	exticmd packet. Exti commands are processed by the server as soon as they
		1195	are received, i.e. out of order w.r.t. other commands. The first argument
		1196	is a client socket. Exti commands can be received anytime, even before
		1197	log-in.
		1198
		1199	If the callback returns something, it is sent back as if reply was being
		1200	called.
		1201
927	=cut	1202	=cut
928		1203
929	sub register_extcmd {	1204	sub register_extcmd {
930	my ($name, $cb) = @_;	1205	my ($name, $cb) = @_;
931		1206
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1207	$EXTCMD{$name} = $cb;
		1208	}
		1209
		1210	sub register_exticmd {
		1211	my ($name, $cb) = @_;
		1212
		1213	$EXTICMD{$name} = $cb;
936	}	1214	}
937		1215
938	cf::player->attach (	1216	cf::player->attach (
939	on_command => sub {	1217	on_command => sub {
940	my ($pl, $name, $params) = @_;	1218	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1227	cf::override;
950	},	1228	},
951	on_extcmd => sub {	1229	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1230	my ($pl, $buf) = @_;
953		1231
954	my $msg = eval { from_json $buf };	1232	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1233
956	if (ref $msg) {	1234	if (ref $msg) {
		1235	my ($type, $reply, @payload) =
		1236	"ARRAY" eq ref $msg
		1237	? @$msg
		1238	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1239
		1240	my @reply;
		1241
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1242	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1243	@reply = $cb->($pl, @payload);
959	$pl->ext_reply ($msg->{msgid}, %reply);
960	}
961	}	1244	}
		1245
		1246	$pl->ext_reply ($reply, @reply)
		1247	if $reply;
		1248
962	} else {	1249	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1250	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1251	}
965		1252
966	cf::override;	1253	cf::override;
967	},	1254	},
968	);	1255	);
969		1256
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1257	sub load_extensions {
		1258	cf::sync_job {
		1259	my %todo;
		1260
		1261	for my $path (<$LIBDIR/*.ext>) {
		1262	next unless -r $path;
		1263
		1264	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1265	my $base = $1;
		1266	my $pkg = $1;
		1267	$pkg =~ s/[^[:word:]]/_/g;
		1268	$pkg = "ext::$pkg";
		1269
		1270	open my $fh, "<:utf8", $path
		1271	or die "$path: $!";
		1272
		1273	my $source = do { local $/; <$fh> };
		1274
		1275	my %ext = (
		1276	path => $path,
		1277	base => $base,
		1278	pkg => $pkg,
		1279	);
		1280
		1281	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1282	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1283
		1284	$ext{source} =
		1285	"package $pkg; use strict; use utf8;\n"
		1286	. "#line 1 \"$path\"\n{\n"
		1287	. $source
		1288	. "\n};\n1";
		1289
		1290	$todo{$base} = \%ext;
		1291	}
		1292
		1293	my %done;
		1294	while (%todo) {
		1295	my $progress;
		1296
		1297	while (my ($k, $v) = each %todo) {
		1298	for (split /,\s*/, $v->{meta}{depends}) {
		1299	goto skip
		1300	unless exists $done{$_};
		1301	}
		1302
		1303	warn "... loading '$k' into '$v->{pkg}'\n";
		1304
		1305	unless (eval $v->{source}) {
		1306	my $msg = $@ ? "$v->{path}: $@\n"
		1307	: "$v->{base}: extension inactive.\n";
		1308
		1309	if (exists $v->{meta}{mandatory}) {
		1310	warn $msg;
		1311	warn "mandatory extension failed to load, exiting.\n";
		1312	exit 1;
		1313	}
		1314
		1315	warn $msg;
		1316	}
		1317
		1318	$done{$k} = delete $todo{$k};
		1319	push @EXTS, $v->{pkg};
		1320	$progress = 1;
		1321	}
		1322
		1323	skip:
		1324	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1325	unless $progress;
		1326	}
		1327	};
		1328	}
		1329
		1330	#############################################################################
		1331
		1332	=back
		1333
		1334	=head2 CORE EXTENSIONS
		1335
		1336	Functions and methods that extend core crossfire objects.
		1337
		1338	=cut
		1339
		1340	package cf::player;
		1341
		1342	use Coro::AIO;
		1343
		1344	=head3 cf::player
		1345
		1346	=over 4
		1347
		1348	=item cf::player::num_playing
		1349
		1350	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1351
		1352	=cut
		1353
		1354	sub num_playing {
		1355	scalar grep
		1356	$_->ob->map
		1357	&& !$_->hidden
		1358	&& !$_->ob->flag (cf::FLAG_WIZ),
		1359	cf::player::list
		1360	}
		1361
		1362	=item cf::player::find $login
		1363
		1364	Returns the given player object, loading it if necessary (might block).
		1365
		1366	=cut
		1367
		1368	sub playerdir($) {
		1369	"$PLAYERDIR/"
		1370	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1371	}
		1372
		1373	sub path($) {
		1374	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1375
		1376	(playerdir $login) . "/playerdata"
		1377	}
		1378
		1379	sub find_active($) {
		1380	$cf::PLAYER{$_[0]}
		1381	and $cf::PLAYER{$_[0]}->active
		1382	and $cf::PLAYER{$_[0]}
		1383	}
		1384
		1385	sub exists($) {
		1386	my ($login) = @_;
		1387
		1388	$cf::PLAYER{$login}
		1389	or cf::sync_job { !aio_stat path $login }
		1390	}
		1391
		1392	sub find($) {
		1393	return $cf::PLAYER{$_[0]} || do {
		1394	my $login = $_[0];
		1395
		1396	my $guard = cf::lock_acquire "user_find:$login";
		1397
		1398	$cf::PLAYER{$_[0]} || do {
		1399	# rename old playerfiles to new ones
		1400	#TODO: remove when no longer required
		1401	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1402	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1403	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1404	aio_unlink +(playerdir $login) . "/$login.pl";
		1405
		1406	my $f = new_from_file cf::object::thawer path $login
		1407	or return;
		1408
		1409	my $pl = cf::player::load_pl $f
		1410	or return;
		1411	local $cf::PLAYER_LOADING{$login} = $pl;
		1412	$f->resolve_delayed_derefs;
		1413	$cf::PLAYER{$login} = $pl
		1414	}
		1415	}
		1416	}
		1417
		1418	sub save($) {
		1419	my ($pl) = @_;
		1420
		1421	return if $pl->{deny_save};
		1422
		1423	my $path = path $pl;
		1424	my $guard = cf::lock_acquire "user_save:$path";
		1425
		1426	return if $pl->{deny_save};
		1427
		1428	aio_mkdir playerdir $pl, 0770;
		1429	$pl->{last_save} = $cf::RUNTIME;
		1430
		1431	$pl->save_pl ($path);
		1432	cf::cede_to_tick;
		1433	}
		1434
		1435	sub new($) {
		1436	my ($login) = @_;
		1437
		1438	my $self = create;
		1439
		1440	$self->ob->name ($login);
		1441	$self->{deny_save} = 1;
		1442
		1443	$cf::PLAYER{$login} = $self;
		1444
		1445	$self
		1446	}
		1447
		1448	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1449
		1450	=cut
		1451
		1452	sub send_msg {
		1453	my $ns = shift->ns
		1454	or return;
		1455	$ns->send_msg (@_);
		1456	}
		1457
		1458	=item $pl->quit_character
		1459
		1460	Nukes the player without looking back. If logged in, the connection will
		1461	be destroyed. May block for a long time.
		1462
		1463	=cut
		1464
		1465	sub quit_character {
		1466	my ($pl) = @_;
		1467
		1468	my $name = $pl->ob->name;
		1469
		1470	$pl->{deny_save} = 1;
		1471	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1472
		1473	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1474	$pl->deactivate;
		1475	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1476	$pl->ns->destroy if $pl->ns;
		1477
		1478	my $path = playerdir $pl;
		1479	my $temp = "$path~$cf::RUNTIME~deleting~";
		1480	aio_rename $path, $temp;
		1481	delete $cf::PLAYER{$pl->ob->name};
		1482	$pl->destroy;
		1483
		1484	my $prefix = qr<^~\Q$name\E/>;
		1485
		1486	# nuke player maps
		1487	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1488
		1489	IO::AIO::aio_rmtree $temp;
		1490	}
		1491
		1492	=item $pl->kick
		1493
		1494	Kicks a player out of the game. This destroys the connection.
		1495
		1496	=cut
		1497
		1498	sub kick {
		1499	my ($pl, $kicker) = @_;
		1500
		1501	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1502	$pl->killer ("kicked");
		1503	$pl->ns->destroy;
		1504	}
		1505
		1506	=item cf::player::list_logins
		1507
		1508	Returns am arrayref of all valid playernames in the system, can take a
		1509	while and may block, so not sync_job-capable, ever.
		1510
		1511	=cut
		1512
		1513	sub list_logins {
		1514	my $dirs = aio_readdir $PLAYERDIR
		1515	or return [];
		1516
		1517	my @logins;
		1518
		1519	for my $login (@$dirs) {
		1520	my $path = path $login;
		1521
		1522	# a .pst is a dead give-away for a valid player
		1523	unless (-e "$path.pst") {
		1524	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1525	aio_read $fh, 0, 512, my $buf, 0 or next;
		1526	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1527	}
		1528
		1529	utf8::decode $login;
		1530	push @logins, $login;
		1531	}
		1532
		1533	\@logins
		1534	}
		1535
		1536	=item $player->maps
		1537
		1538	Returns an arrayref of map paths that are private for this
		1539	player. May block.
		1540
		1541	=cut
		1542
		1543	sub maps($) {
		1544	my ($pl) = @_;
		1545
		1546	$pl = ref $pl ? $pl->ob->name : $pl;
		1547
		1548	my $files = aio_readdir playerdir $pl
		1549	or return;
		1550
		1551	my @paths;
		1552
		1553	for (@$files) {
		1554	utf8::decode $_;
		1555	next if /\.(?:pl|pst)$/;
		1556	next unless /^$PATH_SEP/o;
		1557
		1558	push @paths, cf::map::normalise "~$pl/$_";
		1559	}
		1560
		1561	\@paths
		1562	}
		1563
		1564	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1565
		1566	Expand crossfire pod fragments into protocol xml.
		1567
		1568	=cut
		1569
		1570	use re 'eval';
		1571
		1572	my $group;
		1573	my $interior; $interior = qr{
		1574	# match a pod interior sequence sans C<< >>
		1575	(?:
		1576	\ (.*?)\ (?{ $group = $^N })
		1577	| < (??{$interior}) >
		1578	)
		1579	}x;
		1580
		1581	sub expand_cfpod {
		1582	my ($self, $pod) = @_;
		1583
		1584	my $xml;
		1585
		1586	while () {
		1587	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1588	$group = $1;
		1589
		1590	$group =~ s/&/&amp;/g;
		1591	$group =~ s/</&lt;/g;
		1592
		1593	$xml .= $group;
		1594	} elsif ($pod =~ m%\G
		1595	([BCGHITU])
		1596	<
		1597	(?:
		1598	([^<>]*) (?{ $group = $^N })
		1599	| < $interior >
		1600	)
		1601	>
		1602	%gcsx
		1603	) {
		1604	my ($code, $data) = ($1, $group);
		1605
		1606	if ($code eq "B") {
		1607	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1608	} elsif ($code eq "I") {
		1609	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1610	} elsif ($code eq "U") {
		1611	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1612	} elsif ($code eq "C") {
		1613	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1614	} elsif ($code eq "T") {
		1615	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1616	} elsif ($code eq "G") {
		1617	my ($male, $female) = split /\|/, $data;
		1618	$data = $self->gender ? $female : $male;
		1619	$xml .= expand_cfpod ($self, $data);
		1620	} elsif ($code eq "H") {
		1621	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1622	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1623	"")
		1624	[$self->{hintmode}];
		1625	} else {
		1626	$xml .= "error processing '$code($data)' directive";
		1627	}
		1628	} else {
		1629	if ($pod =~ /\G(.+)/) {
		1630	warn "parse error while expanding $pod (at $1)";
		1631	}
		1632	last;
		1633	}
		1634	}
		1635
		1636	for ($xml) {
		1637	# create single paragraphs (very hackish)
		1638	s/(?<=\S)\n(?=\w)/ /g;
		1639
		1640	# compress some whitespace
		1641	s/\s+\n/\n/g; # ws line-ends
		1642	s/\n\n+/\n/g; # double lines
		1643	s/^\n+//; # beginning lines
		1644	s/\n+$//; # ending lines
		1645	}
		1646
		1647	$xml
		1648	}
		1649
		1650	no re 'eval';
		1651
		1652	sub hintmode {
		1653	$_[0]{hintmode} = $_[1] if @_ > 1;
		1654	$_[0]{hintmode}
		1655	}
		1656
		1657	=item $player->ext_reply ($msgid, @msg)
		1658
		1659	Sends an ext reply to the player.
		1660
		1661	=cut
		1662
		1663	sub ext_reply($$@) {
		1664	my ($self, $id, @msg) = @_;
		1665
		1666	$self->ns->ext_reply ($id, @msg)
		1667	}
		1668
		1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
977	my ($path) = @_;	1696	my ($path) = @_;
978		1697
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1698	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1699
985	warn "loading '$path' into '$pkg'\n";	1700	for my $region (list) {
986		1701	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1702	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1703	if $region->specificity > $specificity;
989		1704	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1705	}
1019		1706
1020	# remove commands	1707	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1708	}
1126		1709
1127	=back	1710	=back
1128
1129		1711
1130	=head3 cf::map	1712	=head3 cf::map
1131		1713
1132	=over 4	1714	=over 4
1133		1715
…		…
1136	package cf::map;	1718	package cf::map;
1137		1719
1138	use Fcntl;	1720	use Fcntl;
1139	use Coro::AIO;	1721	use Coro::AIO;
1140		1722
		1723	use overload
		1724	'""' => \&as_string,
		1725	fallback => 1;
		1726
1141	our $MAX_RESET = 7200;	1727	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1728	our $DEFAULT_RESET = 3000;
1143		1729
1144	sub generate_random_map {	1730	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1731	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1732	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1733	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1734	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1735	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1736	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1737	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1738	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1739	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1740	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1741	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1742	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1743	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1744	(cf::region::find $rmp->{region}), $rmp->{custom}
		1745	)
		1746	}
		1747
		1748	=item cf::map->register ($regex, $prio)
		1749
		1750	Register a handler for the map path matching the given regex at the
		1751	givne priority (higher is better, built-in handlers have priority 0, the
		1752	default).
		1753
		1754	=cut
		1755
		1756	sub register {
		1757	my (undef, $regex, $prio) = @_;
		1758	my $pkg = caller;
		1759
		1760	no strict;
		1761	push @{"$pkg\::ISA"}, __PACKAGE__;
		1762
		1763	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1764	}
		1765
		1766	# also paths starting with '/'
		1767	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1768
		1769	sub thawer_merge {
		1770	my ($self, $merge) = @_;
		1771
		1772	# we have to keep some variables in memory intact
		1773	local $self->{path};
		1774	local $self->{load_path};
		1775
		1776	$self->SUPER::thawer_merge ($merge);
		1777	}
		1778
		1779	sub normalise {
		1780	my ($path, $base) = @_;
		1781
		1782	$path = "$path"; # make sure its a string
		1783
		1784	$path =~ s/\.map$//;
		1785
		1786	# map plan:
		1787	#
		1788	# /! non-realised random map exit (special hack!)
		1789	# {... are special paths that are not being touched
		1790	# ?xxx/... are special absolute paths
		1791	# ?random/... random maps
		1792	# /... normal maps
		1793	# ~user/... per-player map of a specific user
		1794
		1795	$path =~ s/$PATH_SEP/\//go;
		1796
		1797	# treat it as relative path if it starts with
		1798	# something that looks reasonable
		1799	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1800	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1801
		1802	$base =~ s{[^/]+/?$}{};
		1803	$path = "$base/$path";
		1804	}
		1805
		1806	for ($path) {
		1807	redo if s{//}{/};
		1808	redo if s{/\.?/}{/};
		1809	redo if s{/[^/]+/\.\./}{/};
		1810	}
		1811
		1812	$path
		1813	}
		1814
		1815	sub new_from_path {
		1816	my (undef, $path, $base) = @_;
		1817
		1818	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1819
		1820	$path = normalise $path, $base;
		1821
		1822	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1823	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1824	my $self = bless cf::map::new, $pkg;
		1825	$self->{path} = $path; $self->path ($path);
		1826	$self->init; # pass $1 etc.
		1827	return $self;
		1828	}
		1829	}
		1830
		1831	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1832	()
		1833	}
		1834
		1835	sub init {
		1836	my ($self) = @_;
		1837
		1838	$self
		1839	}
		1840
		1841	sub as_string {
		1842	my ($self) = @_;
		1843
		1844	"$self->{path}"
		1845	}
		1846
		1847	# the displayed name, this is a one way mapping
		1848	sub visible_name {
		1849	&as_string
		1850	}
		1851
		1852	# the original (read-only) location
		1853	sub load_path {
		1854	my ($self) = @_;
		1855
		1856	"$MAPDIR/$self->{path}.map"
		1857	}
		1858
		1859	# the temporary/swap location
		1860	sub save_path {
		1861	my ($self) = @_;
		1862
		1863	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1864	"$TMPDIR/$path.map"
		1865	}
		1866
		1867	# the unique path, undef == no special unique path
		1868	sub uniq_path {
		1869	my ($self) = @_;
		1870
		1871	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1872	"$UNIQUEDIR/$path"
1161	}	1873	}
1162		1874
1163	# and all this just because we cannot iterate over	1875	# and all this just because we cannot iterate over
1164	# all maps in C++...	1876	# all maps in C++...
1165	sub change_all_map_light {	1877	sub change_all_map_light {
…		…
1167		1879
1168	$_->change_map_light ($change)	1880	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1881	for grep $_->outdoor, values %cf::MAP;
1170	}	1882	}
1171		1883
		1884	sub decay_objects {
		1885	my ($self) = @_;
		1886
		1887	return if $self->{deny_reset};
		1888
		1889	$self->do_decay_objects;
		1890	}
		1891
		1892	sub unlink_save {
		1893	my ($self) = @_;
		1894
		1895	utf8::encode (my $save = $self->save_path);
		1896	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1897	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1898	}
		1899
1172	sub try_load_header($) {	1900	sub load_header_from($) {
1173	my ($path) = @_;	1901	my ($self, $path) = @_;
1174		1902
1175	utf8::encode $path;	1903	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1904	my $f = new_from_file cf::object::thawer $path
1177	or return;	1905	or return;
1178		1906
1179	my $map = cf::map::new	1907	$self->_load_header ($f)
1180	or return;	1908	or return;
1181		1909
1182	$map->load_header ($path)	1910	local $MAP_LOADING{$self->{path}} = $self;
		1911	$f->resolve_delayed_derefs;
		1912
		1913	$self->{load_path} = $path;
		1914
		1915	1
		1916	}
		1917
		1918	sub load_header_orig {
		1919	my ($self) = @_;
		1920
		1921	$self->load_header_from ($self->load_path)
		1922	}
		1923
		1924	sub load_header_temp {
		1925	my ($self) = @_;
		1926
		1927	$self->load_header_from ($self->save_path)
		1928	}
		1929
		1930	sub prepare_temp {
		1931	my ($self) = @_;
		1932
		1933	$self->last_access ((delete $self->{last_access})
		1934	|| $cf::RUNTIME); #d#
		1935	# safety
		1936	$self->{instantiate_time} = $cf::RUNTIME
		1937	if $self->{instantiate_time} > $cf::RUNTIME;
		1938	}
		1939
		1940	sub prepare_orig {
		1941	my ($self) = @_;
		1942
		1943	$self->{load_original} = 1;
		1944	$self->{instantiate_time} = $cf::RUNTIME;
		1945	$self->last_access ($cf::RUNTIME);
		1946	$self->instantiate;
		1947	}
		1948
		1949	sub load_header {
		1950	my ($self) = @_;
		1951
		1952	if ($self->load_header_temp) {
		1953	$self->prepare_temp;
		1954	} else {
		1955	$self->load_header_orig
1183	or return;	1956	or return;
		1957	$self->prepare_orig;
		1958	}
1184		1959
1185	$map->{load_path} = $path;	1960	$self->{deny_reset} = 1
		1961	if $self->no_reset;
1186		1962
1187	$map	1963	$self->default_region (cf::region::find_by_path $self->{path})
1188	}	1964	unless $self->default_region;
1189		1965
		1966	1
		1967	}
		1968
1190	sub find_map;	1969	sub find;
1191	sub find_map {	1970	sub find {
1192	my ($path, $origin) = @_;	1971	my ($path, $origin) = @_;
1193		1972
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1973	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1974
		1975	cf::lock_wait "map_data:$path";#d#remove
1199	cf::lock_wait "map_find:$key";	1976	cf::lock_wait "map_find:$path";
1200		1977
1201	$cf::MAP{$key} || do {	1978	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1979	my $guard1 = cf::lock_acquire "map_find:$path";
		1980	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1203		1981
1204	# do it the slow way	1982	my $map = new_from_path cf::map $path
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1983	or return;
1221		1984
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1985	$map->{last_save} = $cf::RUNTIME;
1234		1986
1235	if ($map->should_reset) {	1987	$map->load_header
		1988	or return;
		1989
		1990	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1991	# doing this can freeze the server in a sync job, obviously
		1992	#$cf::WAIT_FOR_TICK->wait;
		1993	undef $guard1;
		1994	undef $guard2;
1236	$map->reset;	1995	$map->reset;
1237	undef $guard;	1996	return find $path;
1238	$map = find_map $path
1239	or return;
1240	}	1997	}
1241		1998
1242	$cf::MAP{$key} = $map	1999	$cf::MAP{$path} = $map
1243	}	2000	}
1244	}	2001	}
		2002
		2003	sub pre_load { }
		2004	sub post_load { }
1245		2005
1246	sub load {	2006	sub load {
1247	my ($self) = @_;	2007	my ($self) = @_;
1248		2008
		2009	local $self->{deny_reset} = 1; # loading can take a long time
		2010
1249	my $path = $self->{path};	2011	my $path = $self->{path};
		2012
		2013	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2014	my $guard = cf::lock_acquire "map_data:$path";
1251		2015
		2016	return unless $self->valid;
1252	return if $self->in_memory != cf::MAP_SWAPPED;	2017	return unless $self->in_memory == cf::MAP_SWAPPED;
1253		2018
1254	$self->in_memory (cf::MAP_LOADING);	2019	$self->in_memory (cf::MAP_LOADING);
1255		2020
1256	$self->alloc;	2021	$self->alloc;
1257	$self->load_objects ($self->{load_path}, 1)	2022
		2023	$self->pre_load;
		2024	cf::cede_to_tick;
		2025
		2026	my $f = new_from_file cf::object::thawer $self->{load_path};
		2027	$f->skip_block;
		2028	$self->_load_objects ($f)
1258	or return;	2029	or return;
1259		2030
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2031	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	2032	if delete $self->{load_original};
1262		2033
1263	if (my $uniq = $path->uniq_path) {	2034	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	2035	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	2036	unless (aio_stat $uniq) {
		2037	if (my $f = new_from_file cf::object::thawer $uniq) {
1266	$self->clear_unique_items;	2038	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	2039	$self->_load_objects ($f);
		2040	$f->resolve_delayed_derefs;
		2041	}
1268	}	2042	}
1269	}	2043	}
1270		2044
		2045	$f->resolve_delayed_derefs;
		2046
		2047	cf::cede_to_tick;
1271	# now do the right thing for maps	2048	# now do the right thing for maps
1272	$self->link_multipart_objects;	2049	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	2050	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	2051	unless $self->difficulty;
		2052	cf::cede_to_tick;
		2053
		2054	unless ($self->{deny_activate}) {
		2055	$self->decay_objects;
		2056	$self->fix_auto_apply;
		2057	$self->update_buttons;
		2058	cf::cede_to_tick;
		2059	$self->set_darkness_map;
		2060	cf::cede_to_tick;
1284	$self->activate;	2061	$self->activate;
1285	}	2062	}
1286		2063
		2064	$self->{last_save} = $cf::RUNTIME;
		2065	$self->last_access ($cf::RUNTIME);
		2066
1287	$self->in_memory (cf::MAP_IN_MEMORY);	2067	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	2068	}
1289		2069
1290	sub load_map_sync {	2070	$self->post_load;
		2071	}
		2072
		2073	sub customise_for {
		2074	my ($self, $ob) = @_;
		2075
		2076	return find "~" . $ob->name . "/" . $self->{path}
		2077	if $self->per_player;
		2078
		2079	# return find "?party/" . $ob->name . "/" . $self->{path}
		2080	# if $self->per_party;
		2081
		2082	$self
		2083	}
		2084
		2085	# find and load all maps in the 3x3 area around a map
		2086	sub load_neighbours {
		2087	my ($map) = @_;
		2088
		2089	my @neigh; # diagonal neighbours
		2090
		2091	for (0 .. 3) {
		2092	my $neigh = $map->tile_path ($_)
		2093	or next;
		2094	$neigh = find $neigh, $map
		2095	or next;
		2096	$neigh->load;
		2097
		2098	push @neigh,
		2099	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2100	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2101	}
		2102
		2103	for (grep defined $_->[0], @neigh) {
		2104	my ($path, $origin) = @$_;
		2105	my $neigh = find $path, $origin
		2106	or next;
		2107	$neigh->load;
		2108	}
		2109	}
		2110
		2111	sub find_sync {
1291	my ($path, $origin) = @_;	2112	my ($path, $origin) = @_;
1292		2113
1293	#warn "load_map_sync<$path, $origin>\n";#d#	2114	cf::sync_job { find $path, $origin }
		2115	}
1294		2116
1295	cf::sync_job {	2117	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	2118	my ($map) = @_;
1297	or return;	2119
1298	$map->load;	2120	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1299	$map	2121	if $Coro::current == $Coro::main;
		2122
		2123	cf::sync_job { $map->load };
		2124	}
		2125
		2126	our %MAP_PREFETCH;
		2127	our $MAP_PREFETCHER = undef;
		2128
		2129	sub find_async {
		2130	my ($path, $origin, $load) = @_;
		2131
		2132	$path = normalise $path, $origin && $origin->{path};
		2133
		2134	if (my $map = $cf::MAP{$path}) {
		2135	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2136	}
		2137
		2138	$MAP_PREFETCH{$path} |= $load;
		2139
		2140	$MAP_PREFETCHER ||= cf::async {
		2141	$Coro::current->{desc} = "map prefetcher";
		2142
		2143	while (%MAP_PREFETCH) {
		2144	while (my ($k, $v) = each %MAP_PREFETCH) {
		2145	if (my $map = find $k) {
		2146	$map->load if $v;
		2147	}
		2148
		2149	delete $MAP_PREFETCH{$k};
		2150	}
		2151	}
		2152	undef $MAP_PREFETCHER;
1300	}	2153	};
		2154	$MAP_PREFETCHER->prio (6);
		2155
		2156	()
1301	}	2157	}
1302		2158
1303	sub save {	2159	sub save {
1304	my ($self) = @_;	2160	my ($self) = @_;
1305		2161
		2162	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2163
1306	$self->{last_save} = $cf::RUNTIME;	2164	$self->{last_save} = $cf::RUNTIME;
1307		2165
1308	return unless $self->dirty;	2166	return unless $self->dirty;
1309		2167
1310	my $save = $self->{path}->save_path; utf8::encode $save;	2168	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2169	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		2170
1313	$self->{load_path} = $save;	2171	$self->{load_path} = $save;
1314		2172
1315	return if $self->{deny_save};	2173	return if $self->{deny_save};
1316		2174
1317	local $self->{last_access} = $self->last_access;#d#	2175	local $self->{last_access} = $self->last_access;#d#
1318		2176
		2177	cf::async {
		2178	$Coro::current->{desc} = "map player save";
		2179	$_->contr->save for $self->players;
		2180	};
		2181
1319	if ($uniq) {	2182	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	2184	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	2185	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	2187	}
1325	}	2188	}
1326		2189
1327	sub swap_out {	2190	sub swap_out {
1328	my ($self) = @_;	2191	my ($self) = @_;
1329		2192
1330	# save first because save cedes	2193	# save first because save cedes
1331	$self->save;	2194	$self->save;
		2195
		2196	my $lock = cf::lock_acquire "map_data:$self->{path}";
1332		2197
1333	return if $self->players;	2198	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	2199	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	2200	return if $self->{deny_save};
1336		2201
		2202	$self->in_memory (cf::MAP_SWAPPED);
		2203
		2204	$self->deactivate;
		2205	$_->clear_links_to ($self) for values %cf::MAP;
1337	$self->clear;	2206	$self->clear;
1338	$self->in_memory (cf::MAP_SWAPPED);
1339	}	2207	}
1340		2208
1341	sub reset_at {	2209	sub reset_at {
1342	my ($self) = @_;	2210	my ($self) = @_;
1343		2211
1344	# TODO: safety, remove and allow resettable per-player maps	2212	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	2213	return 1e99 if $self->{deny_reset};
1347		2214
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2215	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2216	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		2217
…		…
1355	my ($self) = @_;	2222	my ($self) = @_;
1356		2223
1357	$self->reset_at <= $cf::RUNTIME	2224	$self->reset_at <= $cf::RUNTIME
1358	}	2225	}
1359		2226
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	2227	sub reset {
1382	my ($self) = @_;	2228	my ($self) = @_;
1383		2229
		2230	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2231
1384	return if $self->players;	2232	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		2233
1387	warn "resetting map ", $self->path;#d#	2234	warn "resetting map ", $self->path;
		2235
		2236	$self->in_memory (cf::MAP_SWAPPED);
		2237
		2238	# need to save uniques path
		2239	unless ($self->{deny_save}) {
		2240	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2241
		2242	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2243	if $uniq;
		2244	}
1388		2245
1389	delete $cf::MAP{$self->path};	2246	delete $cf::MAP{$self->path};
1390		2247
		2248	$self->deactivate;
1391	$_->clear_links_to ($self) for values %cf::MAP;	2249	$_->clear_links_to ($self) for values %cf::MAP;
		2250	$self->clear;
1392		2251
1393	$self->unlink_save;	2252	$self->unlink_save;
1394	$self->destroy;	2253	$self->destroy;
1395	}	2254	}
1396		2255
1397	my $nuke_counter = "aaaa";	2256	my $nuke_counter = "aaaa";
1398		2257
1399	sub nuke {	2258	sub nuke {
1400	my ($self) = @_;	2259	my ($self) = @_;
1401		2260
		2261	{
		2262	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2263
		2264	delete $cf::MAP{$self->path};
		2265
		2266	$self->unlink_save;
		2267
		2268	bless $self, "cf::map";
		2269	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	2270	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	2271	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	2272	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2273
		2274	$cf::MAP{$self->path} = $self;
		2275	}
		2276
1405	$self->reset; # polite request, might not happen	2277	$self->reset; # polite request, might not happen
1406	}	2278	}
1407		2279
1408	sub customise_for {	2280	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2281
1411	if ($map->per_player) {	2282	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2283	maps. May block.
		2284
		2285	=cut
		2286
		2287	sub tmp_maps() {
1413	}	2288	[
1414		2289	map {
1415	$map	2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise $_
		2293	: ()
		2294	} @{ aio_readdir $TMPDIR or [] }
		2295	]
1416	}	2296	}
1417		2297
1418	sub emergency_save {	2298	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2299
1421	warn "enter emergency map save\n";	2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	random maps. May block.
1422		2302
1423	cf::sync_job {	2303	=cut
1424	warn "begin emergency map save\n";
1425	$_->save for values %cf::MAP;
1426	};
1427		2304
1428	warn "end emergency map save\n";	2305	sub random_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise "?random/$_"
		2311	: ()
		2312	} @{ aio_readdir $RANDOMDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item cf::map::unique_maps
		2317
		2318	Returns an arrayref of paths of all shared maps that have
		2319	instantiated unique items. May block.
		2320
		2321	=cut
		2322
		2323	sub unique_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise $_
		2329	: ()
		2330	} @{ aio_readdir $UNIQUEDIR or [] }
		2331	]
1429	}	2332	}
1430		2333
1431	package cf;	2334	package cf;
1432		2335
1433	=back	2336	=back
1434		2337
		2338	=head3 cf::object
		2339
		2340	=cut
		2341
		2342	package cf::object;
		2343
		2344	=over 4
		2345
		2346	=item $ob->inv_recursive
		2347
		2348	Returns the inventory of the object _and_ their inventories, recursively.
		2349
		2350	=cut
		2351
		2352	sub inv_recursive_;
		2353	sub inv_recursive_ {
		2354	map { $_, inv_recursive_ $_->inv } @_
		2355	}
		2356
		2357	sub inv_recursive {
		2358	inv_recursive_ inv $_[0]
		2359	}
		2360
		2361	=item $ref = $ob->ref
		2362
		2363	creates and returns a persistent reference to an objetc that can be stored as a string.
		2364
		2365	=item $ob = cf::object::deref ($refstring)
		2366
		2367	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2368	even if the object actually exists. May block.
		2369
		2370	=cut
		2371
		2372	sub deref {
		2373	my ($ref) = @_;
		2374
		2375	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2376	my ($uuid, $name) = ($1, $2);
		2377	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2378	or return;
		2379	$pl->ob->uuid eq $uuid
		2380	or return;
		2381
		2382	$pl->ob
		2383	} else {
		2384	warn "$ref: cannot resolve object reference\n";
		2385	undef
		2386	}
		2387	}
		2388
		2389	package cf;
		2390
		2391	=back
1435		2392
1436	=head3 cf::object::player	2393	=head3 cf::object::player
1437		2394
1438	=over 4	2395	=over 4
1439		2396
…		…
1453		2410
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2411	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2412
1456	if ($self->{record_replies}) {	2413	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2414	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2415
1458	} else {	2416	} else {
		2417	my $pl = $self->contr;
		2418
		2419	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2420	my $dialog = $pl->{npc_dialog};
		2421	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2422
		2423	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2424	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2425	$self->message ($msg, $flags);
		2426	}
1461	}	2427	}
		2428	}
		2429
		2430	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	=cut
		2433
		2434	sub cf::object::send_msg {
		2435	my $pl = shift->contr
		2436	or return;
		2437	$pl->send_msg (@_);
1462	}	2438	}
1463		2439
1464	=item $player_object->may ("access")	2440	=item $player_object->may ("access")
1465		2441
1466	Returns wether the given player is authorized to access resource "access"	2442	Returns wether the given player is authorized to access resource "access"
…		…
1479		2455
1480	=item $player_object->enter_link	2456	=item $player_object->enter_link
1481		2457
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2458	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2459
1484	The player should be reaosnably safe there for short amounts of time. You	2460	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	2461	I<MUST> call C<leave_link> as soon as possible, though.
1486		2462
		2463	Will never block.
		2464
1487	=item $player_object->leave_link ($map, $x, $y)	2465	=item $player_object->leave_link ($map, $x, $y)
1488		2466
1489	Moves the player out of the specila link map onto the given map. If the	2467	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2468	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2469	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2470	fails, to the emergency map position.
1493		2471
1494	Might block.	2472	Might block.
1495		2473
1496	=cut	2474	=cut
		2475
		2476	sub link_map {
		2477	unless ($LINK_MAP) {
		2478	$LINK_MAP = cf::map::find "{link}"
		2479	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2480	$LINK_MAP->load;
		2481	}
		2482
		2483	$LINK_MAP
		2484	}
1497		2485
1498	sub cf::object::player::enter_link {	2486	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2487	my ($self) = @_;
1500		2488
1501	$self->deactivate_recursive;	2489	$self->deactivate_recursive;
1502		2490
1503	return if $self->map == $LINK_MAP;	2491	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2492
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2493	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2494	if $self->map && $self->map->{path} ne "{link}";
1507		2495
1508	$self->enter_map ($LINK_MAP, 20, 20);	2496	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	2497	}
1510		2498
1511	sub cf::object::player::leave_link {	2499	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2500	my ($self, $map, $x, $y) = @_;
		2501
		2502	return unless $self->contr->active;
1513		2503
1514	my $link_pos = delete $self->{_link_pos};	2504	my $link_pos = delete $self->{_link_pos};
1515		2505
1516	unless ($map) {	2506	unless ($map) {
1517	# restore original map position	2507	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2508	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2509	$map = cf::map::find $map;
1520		2510
1521	unless ($map) {	2511	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2512	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2513	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2514	or die "FATAL: cannot load emergency map\n";
1525	}	2515	}
1526	}	2516	}
1527		2517
1528	($x, $y) = (-1, -1)	2518	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	2521	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2522	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2523	if $x <=0 && $y <= 0;
1534		2524
1535	$map->load;	2525	$map->load;
		2526	$map->load_neighbours;
1536		2527
		2528	return unless $self->contr->active;
1537	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1539	}	2533	}
1540		2534
1541	cf::player->attach (	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1542	on_logout => sub {
1543	my ($pl) = @_;
1544		2536
1545	# abort map switching before logout	2537	Moves the player to the given map-path and coordinates by first freezing
1546	if ($pl->ob->{_link_pos}) {	2538	her, loading and preparing them map, calling the provided $check callback
1547	cf::sync_job {	2539	that has to return the map if sucecssful, and then unfreezes the player on
1548	$pl->ob->leave_link	2540	the new (success) or old (failed) map position. In either case, $done will
1549	};	2541	be called at the end of this process.
1550	}
1551	},
1552	on_login => sub {
1553	my ($pl) = @_;
1554		2542
1555	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568
1569	=item $player_object->goto_map ($path, $x, $y)
1570
1571	=cut	2543	=cut
1572		2544
		2545	our $GOTOGEN;
		2546
1573	sub cf::object::player::goto_map {	2547	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2548	my ($self, $path, $x, $y, $check, $done) = @_;
		2549
		2550	# do generation counting so two concurrent goto's will be executed in-order
		2551	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2552
1576	$self->enter_link;	2553	$self->enter_link;
1577		2554
1578	(cf::async {	2555	(async {
1579	$path = new cf::path $path;	2556	$Coro::current->{desc} = "player::goto $path $x $y";
1580		2557
1581	my $map = cf::map::find_map $path->as_string;	2558	# *tag paths override both path and x|y
		2559	if ($path =~ /^\*(.*)$/) {
		2560	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2561	my $ob = $obs[rand @obs];
		2562
		2563	# see if we actually can go there
		2564	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2565	$ob = $obs[rand @obs];
		2566	} else {
		2567	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
		2569	# else put us there anyways for now #d#
		2570
		2571	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2572	} else {
		2573	($path, $x, $y) = (undef, undef, undef);
		2574	}
		2575	}
		2576
		2577	my $map = eval {
		2578	my $map = defined $path ? cf::map::find $path : undef;
		2579
		2580	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2581	$map = $map->customise_for ($self);
1583		2582	$map = $check->($map) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2583	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2584	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2585	}
1588		2586
		2587	$map
		2588	};
		2589
		2590	if ($@) {
		2591	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2592	LOG llevError | logBacktrace, Carp::longmess $@;
		2593	}
		2594
		2595	if ($gen == $self->{_goto_generation}) {
		2596	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2597	$self->leave_link ($map, $x, $y);
		2598	}
		2599
		2600	$done->() if $done;
1590	})->prio (1);	2601	})->prio (1);
1591	}	2602	}
1592		2603
1593	=item $player_object->enter_exit ($exit_object)	2604	=item $player_object->enter_exit ($exit_object)
1594		2605
…		…
1596		2607
1597	sub parse_random_map_params {	2608	sub parse_random_map_params {
1598	my ($spec) = @_;	2609	my ($spec) = @_;
1599		2610
1600	my $rmp = { # defaults	2611	my $rmp = { # defaults
1601	xsize => 10,	2612	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2613	ysize => (cf::rndm 15, 40),
		2614	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2615	#layout => string,
1603	};	2616	};
1604		2617
1605	for (split /\n/, $spec) {	2618	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2619	my ($k, $v) = split /\s+/, $_, 2;
1607		2620
…		…
1611	$rmp	2624	$rmp
1612	}	2625	}
1613		2626
1614	sub prepare_random_map {	2627	sub prepare_random_map {
1615	my ($exit) = @_;	2628	my ($exit) = @_;
		2629
		2630	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		2631
1617	# all this does is basically replace the /! path by	2632	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	2633	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	2634	# that depends on the exit object
1620		2635
1621	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1622		2637
1623	if ($exit->map) {	2638	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
1628	}	2643	}
1629		2644
1630	$rmp->{random_seed} ||= $exit->random_seed;	2645	$rmp->{random_seed} ||= $exit->random_seed;
1631		2646
1632	my $data = cf::to_json $rmp;	2647	my $data = cf::encode_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2648	my $md5 = Digest::MD5::md5_hex $data;
		2649	my $meta = "$RANDOMDIR/$md5.meta";
1634		2650
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2651	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2652	aio_write $fh, 0, (length $data), $data, 0;
		2653	undef $fh;
		2654	aio_rename "$meta~", $meta;
1637		2655
1638	$exit->slaying ("?random/$md5");	2656	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2657	$exit->msg (undef);
1640	}	2658	}
1641	}	2659	}
…		…
1643	sub cf::object::player::enter_exit {	2661	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2662	my ($self, $exit) = @_;
1645		2663
1646	return unless $self->type == cf::PLAYER;	2664	return unless $self->type == cf::PLAYER;
1647		2665
		2666	if ($exit->slaying eq "/!") {
		2667	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2668	# the problem is that $exit might not survive long enough
		2669	# so it needs to be done right now, right here
		2670	cf::sync_job { prepare_random_map $exit };
		2671	}
		2672
		2673	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2674	my $hp = $exit->stats->hp;
		2675	my $sp = $exit->stats->sp;
		2676
1648	$self->enter_link;	2677	$self->enter_link;
1649		2678
		2679	# if exit is damned, update players death & WoR home-position
		2680	$self->contr->savebed ($slaying, $hp, $sp)
		2681	if $exit->flag (FLAG_DAMNED);
		2682
1650	(cf::async {	2683	(async {
		2684	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2685
		2686	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2687	unless (eval {
1652	prepare_random_map $exit	2688	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2689
1658	1;	2690	1;
1659	}) {	2691	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2692	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2693	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2694	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2695	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2696
1665	warn "ERROR in enter_exit: $@";	2697	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2698	$self->leave_link;
1667	}	2699	}
1668	})->prio (1);	2700	})->prio (1);
…		…
1681		2713
1682	sub cf::client::send_drawinfo {	2714	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2715	my ($self, $text, $flags) = @_;
1684		2716
1685	utf8::encode $text;	2717	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2718	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2719	}
1688		2720
		2721	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2722
		2723	Send a drawinfo or msg packet to the client, formatting the msg for the
		2724	client if neccessary. C<$type> should be a string identifying the type of
		2725	the message, with C<log> being the default. If C<$color> is negative, suppress
		2726	the message unless the client supports the msg packet.
		2727
		2728	=cut
		2729
		2730	# non-persistent channels (usually the info channel)
		2731	our %CHANNEL = (
		2732	"c/identify" => {
		2733	id => "infobox",
		2734	title => "Identify",
		2735	reply => undef,
		2736	tooltip => "Items recently identified",
		2737	},
		2738	"c/examine" => {
		2739	id => "infobox",
		2740	title => "Examine",
		2741	reply => undef,
		2742	tooltip => "Signs and other items you examined",
		2743	},
		2744	"c/book" => {
		2745	id => "infobox",
		2746	title => "Book",
		2747	reply => undef,
		2748	tooltip => "The contents of a note or book",
		2749	},
		2750	"c/lookat" => {
		2751	id => "infobox",
		2752	title => "Look",
		2753	reply => undef,
		2754	tooltip => "What you saw there",
		2755	},
		2756	"c/who" => {
		2757	id => "infobox",
		2758	title => "Players",
		2759	reply => undef,
		2760	tooltip => "Shows players who are currently online",
		2761	},
		2762	"c/body" => {
		2763	id => "infobox",
		2764	title => "Body Parts",
		2765	reply => undef,
		2766	tooltip => "Shows which body parts you posess and are available",
		2767	},
		2768	"c/uptime" => {
		2769	id => "infobox",
		2770	title => "Uptime",
		2771	reply => undef,
		2772	tooltip => "How long the server has been running since last restart",
		2773	},
		2774	"c/mapinfo" => {
		2775	id => "infobox",
		2776	title => "Map Info",
		2777	reply => undef,
		2778	tooltip => "Information related to the maps",
		2779	},
		2780	);
		2781
		2782	sub cf::client::send_msg {
		2783	my ($self, $channel, $msg, $color, @extra) = @_;
		2784
		2785	$msg = $self->pl->expand_cfpod ($msg);
		2786
		2787	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2788
		2789	# check predefined channels, for the benefit of C
		2790	if ($CHANNEL{$channel}) {
		2791	$channel = $CHANNEL{$channel};
		2792
		2793	$self->ext_msg (channel_info => $channel)
		2794	if $self->can_msg;
		2795
		2796	$channel = $channel->{id};
		2797
		2798	} elsif (ref $channel) {
		2799	# send meta info to client, if not yet sent
		2800	unless (exists $self->{channel}{$channel->{id}}) {
		2801	$self->{channel}{$channel->{id}} = $channel;
		2802	$self->ext_msg (channel_info => $channel)
		2803	if $self->can_msg;
		2804	}
		2805
		2806	$channel = $channel->{id};
		2807	}
		2808
		2809	return unless @extra || length $msg;
		2810
		2811	if ($self->can_msg) {
		2812	# default colour, mask it out
		2813	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2814	if $color & cf::NDI_DEF;
		2815
		2816	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2817	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2818	} else {
		2819	if ($color >= 0) {
		2820	# replace some tags by gcfclient-compatible ones
		2821	for ($msg) {
		2822	1 while
		2823	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2824	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2825	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2826	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2827	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2828	}
		2829
		2830	$color &= cf::NDI_COLOR_MASK;
		2831
		2832	utf8::encode $msg;
		2833
		2834	if (0 && $msg =~ /\[/) {
		2835	# COMMAND/INFO
		2836	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2837	} else {
		2838	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2839	$self->send_packet ("drawinfo $color $msg")
		2840	}
		2841	}
		2842	}
		2843	}
		2844
		2845	=item $client->ext_msg ($type, @msg)
		2846
		2847	Sends an ext event to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_msg($$@) {
		2852	my ($self, $type, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2856	} elsif ($self->extcmd == 1) { # TODO: remove
		2857	push @msg, msgtype => "event_$type";
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2859	}
		2860	}
		2861
		2862	=item $client->ext_reply ($msgid, @msg)
		2863
		2864	Sends an ext reply to the client.
		2865
		2866	=cut
		2867
		2868	sub cf::client::ext_reply($$@) {
		2869	my ($self, $id, @msg) = @_;
		2870
		2871	if ($self->extcmd == 2) {
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2873	} elsif ($self->extcmd == 1) {
		2874	#TODO: version 1, remove
		2875	unshift @msg, msgtype => "reply", msgid => $id;
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2877	}
		2878	}
1689		2879
1690	=item $success = $client->query ($flags, "text", \&cb)	2880	=item $success = $client->query ($flags, "text", \&cb)
1691		2881
1692	Queues a query to the client, calling the given callback with	2882	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2883	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2884	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2885
1696	Queries can fail, so check the return code. Or don't, as queries will become	2886	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2887	become reliable at some point in the future.
1698		2888
1699	=cut	2889	=cut
1700		2890
1701	sub cf::client::query {	2891	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2892	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2900	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2901	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2902
1713	$self->send_packet ($self->{query_queue}[0][0])	2903	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2904	if @{ $self->{query_queue} } == 1;
		2905
		2906	1
1715	}	2907	}
1716		2908
1717	cf::client->attach (	2909	cf::client->attach (
		2910	on_connect => sub {
		2911	my ($ns) = @_;
		2912
		2913	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2914	},
1718	on_reply => sub {	2915	on_reply => sub {
1719	my ($ns, $msg) = @_;	2916	my ($ns, $msg) = @_;
1720		2917
1721	# this weird shuffling is so that direct followup queries	2918	# this weird shuffling is so that direct followup queries
1722	# get handled first	2919	# get handled first
1723	my $queue = delete $ns->{query_queue}	2920	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2921	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2922
1726	(shift @$queue)->[1]->($msg);	2923	(shift @$queue)->[1]->($msg);
		2924	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2925
1728	push @{ $ns->{query_queue} }, @$queue;	2926	push @{ $ns->{query_queue} }, @$queue;
1729		2927
1730	if (@{ $ns->{query_queue} } == @$queue) {	2928	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2929	if (@$queue) {
…		…
1733	} else {	2931	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2932	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2933	}
1736	}	2934	}
1737	},	2935	},
		2936	on_exticmd => sub {
		2937	my ($ns, $buf) = @_;
		2938
		2939	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2940
		2941	if (ref $msg) {
		2942	my ($type, $reply, @payload) =
		2943	"ARRAY" eq ref $msg
		2944	? @$msg
		2945	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2946
		2947	my @reply;
		2948
		2949	if (my $cb = $EXTICMD{$type}) {
		2950	@reply = $cb->($ns, @payload);
		2951	}
		2952
		2953	$ns->ext_reply ($reply, @reply)
		2954	if $reply;
		2955
		2956	} else {
		2957	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2958	}
		2959
		2960	cf::override;
		2961	},
1738	);	2962	);
1739		2963
1740	=item $client->coro (\&cb)	2964	=item $client->async (\&cb)
1741		2965
1742	Create a new coroutine, running the specified callback. The coroutine will	2966	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2967	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2968	or loss of connection).
1745		2969
1746	=cut	2970	=cut
1747		2971
1748	sub cf::client::coro {	2972	sub cf::client::async {
1749	my ($self, $cb) = @_;	2973	my ($self, $cb) = @_;
1750		2974
1751	my $coro = &cf::async ($cb);	2975	my $coro = &Coro::async ($cb);
1752		2976
1753	$coro->on_destroy (sub {	2977	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2978	delete $self->{_coro}{$coro+0};
1755	});	2979	});
1756		2980
…		…
1783	our $safe = new Safe "safe";	3007	our $safe = new Safe "safe";
1784	our $safe_hole = new Safe::Hole;	3008	our $safe_hole = new Safe::Hole;
1785		3009
1786	$SIG{FPE} = 'IGNORE';	3010	$SIG{FPE} = 'IGNORE';
1787		3011
1788	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3012	$safe->permit_only (Opcode::opset qw(
		3013	:base_core :base_mem :base_orig :base_math
		3014	grepstart grepwhile mapstart mapwhile
		3015	sort time
		3016	));
1789		3017
1790	# here we export the classes and methods available to script code	3018	# here we export the classes and methods available to script code
1791		3019
1792	=pod	3020	=pod
1793		3021
1794	The following fucntions and emthods are available within a safe environment:	3022	The following functions and methods are available within a safe environment:
1795		3023
1796	cf::object contr pay_amount pay_player map	3024	cf::object
		3025	contr pay_amount pay_player map x y force_find force_add destroy
		3026	insert remove name archname title slaying race decrease_ob_nr
		3027
1797	cf::object::player player	3028	cf::object::player
1798	cf::player peaceful	3029	player
1799	cf::map trigger	3030
		3031	cf::player
		3032	peaceful
		3033
		3034	cf::map
		3035	trigger
1800		3036
1801	=cut	3037	=cut
1802		3038
1803	for (	3039	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	3040	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3041	insert remove inv name archname title slaying race
		3042	decrease_ob_nr destroy)],
1805	["cf::object::player" => qw(player)],	3043	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	3044	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	3045	["cf::map" => qw(trigger)],
1808	) {	3046	) {
1809	no strict 'refs';	3047	no strict 'refs';
…		…
1880	=back	3118	=back
1881		3119
1882	=cut	3120	=cut
1883		3121
1884	#############################################################################	3122	#############################################################################
		3123	# the server's init and main functions
1885		3124
1886	=head2 EXTENSION DATABASE SUPPORT	3125	sub load_facedata($) {
		3126	my ($path) = @_;
1887		3127
1888	Crossfire maintains a very simple database for extension use. It can	3128	# HACK to clear player env face cache, we need some signal framework
1889	currently store anything that can be serialised using Storable, which	3129	# for this (global event?)
1890	excludes objects.	3130	%ext::player_env::MUSIC_FACE_CACHE = ();
1891		3131
1892	The parameter C<$family> should best start with the name of the extension	3132	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893	using it, it should be unique.
1894		3133
1895	=over 4	3134	warn "loading facedata from $path\n";
1896		3135
1897	=item $hashref = cf::db_get $family	3136	my $facedata;
		3137	0 < aio_load $path, $facedata
		3138	or die "$path: $!";
1898		3139
1899	Return a hashref for use by the extension C<$family>, which can be	3140	$facedata = Coro::Storable::thaw $facedata;
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902		3141
1903	=item $value = cf::db_get $family => $key	3142	$facedata->{version} == 2
		3143	or cf::cleanup "$path: version mismatch, cannot proceed.";
1904		3144
1905	Returns a single value from the database	3145	# patch in the exptable
1906		3146	$facedata->{resource}{"res/exp_table"} = {
1907	=item cf::db_put $family => $hashref	3147	type => FT_RSRC,
1908		3148	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}
1935
1936	my $pid;
1937
1938	sub db_save() {
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	3149	};
		3150	cf::cede_to_tick;
1958		3151
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}	3152	{
		3153	my $faces = $facedata->{faceinfo};
1963		3154
1964	sub db_get($;$) {	3155	while (my ($face, $info) = each %$faces) {
1965	@_ >= 2	3156	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		3157
1970	sub db_put($$;$) {	3158	cf::face::set_visibility $idx, $info->{visibility};
1971	if (@_ >= 3) {	3159	cf::face::set_magicmap $idx, $info->{magicmap};
1972	$DB->{$_[0]}{$_[1]} = $_[2];	3160	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1973	} else {	3161	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		3162
1979	cf::global->attach (	3163	cf::cede_to_tick;
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	3164	}
1984	);
1985	}
1986		3165
1987	#############################################################################	3166	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	3167	next unless $info->{smooth};
1989		3168
1990	sub cfg_load {	3169	my $idx = cf::face::find $face
		3170	or next;
		3171
		3172	if (my $smooth = cf::face::find $info->{smooth}) {
		3173	cf::face::set_smooth $idx, $smooth;
		3174	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3175	} else {
		3176	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3177	}
		3178
		3179	cf::cede_to_tick;
		3180	}
		3181	}
		3182
		3183	{
		3184	my $anims = $facedata->{animinfo};
		3185
		3186	while (my ($anim, $info) = each %$anims) {
		3187	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3188	cf::cede_to_tick;
		3189	}
		3190
		3191	cf::anim::invalidate_all; # d'oh
		3192	}
		3193
		3194	{
		3195	# TODO: for gcfclient pleasure, we should give resources
		3196	# that gcfclient doesn't grok a >10000 face index.
		3197	my $res = $facedata->{resource};
		3198
		3199	while (my ($name, $info) = each %$res) {
		3200	if (defined $info->{type}) {
		3201	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3202	my $data;
		3203
		3204	if ($info->{type} & 1) {
		3205	# prepend meta info
		3206
		3207	my $meta = $enc->encode ({
		3208	name => $name,
		3209	%{ $info->{meta} || {} },
		3210	});
		3211
		3212	$data = pack "(w/a*)*", $meta, $info->{data};
		3213	} else {
		3214	$data = $info->{data};
		3215	}
		3216
		3217	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3218	cf::face::set_type $idx, $info->{type};
		3219	} else {
		3220	$RESOURCE{$name} = $info;
		3221	}
		3222
		3223	cf::cede_to_tick;
		3224	}
		3225	}
		3226
		3227	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3228
		3229	1
		3230	}
		3231
		3232	cf::global->attach (on_resource_update => sub {
		3233	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3234	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3235
		3236	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3237	my $sound = $soundconf->{compat}[$_]
		3238	or next;
		3239
		3240	my $face = cf::face::find "sound/$sound->[1]";
		3241	cf::sound::set $sound->[0] => $face;
		3242	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3243	}
		3244
		3245	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3246	my $face = cf::face::find "sound/$v";
		3247	cf::sound::set $k => $face;
		3248	}
		3249	}
		3250	});
		3251
		3252	register_exticmd fx_want => sub {
		3253	my ($ns, $want) = @_;
		3254
		3255	while (my ($k, $v) = each %$want) {
		3256	$ns->fx_want ($k, $v);
		3257	}
		3258	};
		3259
		3260	sub reload_regions {
		3261	# HACK to clear player env face cache, we need some signal framework
		3262	# for this (global event?)
		3263	%ext::player_env::MUSIC_FACE_CACHE = ();
		3264
		3265	load_resource_file "$MAPDIR/regions"
		3266	or die "unable to load regions file\n";
		3267
		3268	for (cf::region::list) {
		3269	$_->{match} = qr/$_->{match}/
		3270	if exists $_->{match};
		3271	}
		3272	}
		3273
		3274	sub reload_facedata {
		3275	load_facedata "$DATADIR/facedata"
		3276	or die "unable to load facedata\n";
		3277	}
		3278
		3279	sub reload_archetypes {
		3280	load_resource_file "$DATADIR/archetypes"
		3281	or die "unable to load archetypes\n";
		3282	#d# NEED to laod twice to resolve forward references
		3283	# this really needs to be done in an extra post-pass
		3284	# (which needs to be synchronous, so solve it differently)
		3285	load_resource_file "$DATADIR/archetypes"
		3286	or die "unable to load archetypes\n";
		3287	}
		3288
		3289	sub reload_treasures {
		3290	load_resource_file "$DATADIR/treasures"
		3291	or die "unable to load treasurelists\n";
		3292	}
		3293
		3294	sub reload_resources {
		3295	warn "reloading resource files...\n";
		3296
		3297	reload_regions;
		3298	reload_facedata;
		3299	#reload_archetypes;#d#
		3300	reload_archetypes;
		3301	reload_treasures;
		3302
		3303	warn "finished reloading resource files\n";
		3304	}
		3305
		3306	sub init {
		3307	reload_resources;
		3308	}
		3309
		3310	sub reload_config {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	3311	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	3312	or return;
1993		3313
1994	local $/;	3314	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	3315	*CFG = YAML::Load <$fh>;
1996		3316
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3317	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3318
		3319	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3320	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1998		3321
1999	if (exists $CFG{mlockall}) {	3322	if (exists $CFG{mlockall}) {
2000	eval {	3323	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	3324	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	3325	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	3326	};
2004	warn $@ if $@;	3327	warn $@ if $@;
2005	}	3328	}
2006	}	3329	}
2007		3330
2008	sub main {	3331	sub main {
2009	# we must not ever block the main coroutine	3332	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	3333	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3334	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	3335	(async {
2013	Event::one_event;	3336	$Coro::current->{desc} = "IDLE BUG HANDLER";
2014	})->();	3337	EV::loop EV::LOOP_ONESHOT;
		3338	})->prio (Coro::PRIO_MAX);
2015	};	3339	};
2016		3340
2017	cfg_load;	3341	reload_config;
2018	db_load;	3342	db_init;
2019	load_extensions;	3343	load_extensions;
		3344
		3345	$TICK_WATCHER->start;
		3346	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2020	Event::loop;	3347	EV::loop;
2021	}	3348	}
2022		3349
2023	#############################################################################	3350	#############################################################################
2024	# initialisation	3351	# initialisation and cleanup
2025		3352
		3353	# install some emergency cleanup handlers
		3354	BEGIN {
		3355	our %SIGWATCHER = ();
		3356	for my $signal (qw(INT HUP TERM)) {
		3357	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3358	cf::cleanup "SIG$signal";
		3359	};
		3360	}
		3361	}
		3362
		3363	sub write_runtime {
		3364	my $runtime = "$LOCALDIR/runtime";
		3365
		3366	# first touch the runtime file to show we are still running:
		3367	# the fsync below can take a very very long time.
		3368
		3369	IO::AIO::aio_utime $runtime, undef, undef;
		3370
		3371	my $guard = cf::lock_acquire "write_runtime";
		3372
		3373	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3374	or return;
		3375
		3376	my $value = $cf::RUNTIME + 90 + 10;
		3377	# 10 is the runtime save interval, for a monotonic clock
		3378	# 60 allows for the watchdog to kill the server.
		3379
		3380	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3381	and return;
		3382
		3383	# always fsync - this file is important
		3384	aio_fsync $fh
		3385	and return;
		3386
		3387	# touch it again to show we are up-to-date
		3388	aio_utime $fh, undef, undef;
		3389
		3390	close $fh
		3391	or return;
		3392
		3393	aio_rename "$runtime~", $runtime
		3394	and return;
		3395
		3396	warn "runtime file written.\n";
		3397
		3398	1
		3399	}
		3400
		3401	sub emergency_save() {
		3402	my $freeze_guard = cf::freeze_mainloop;
		3403
		3404	warn "enter emergency perl save\n";
		3405
		3406	cf::sync_job {
		3407	# use a peculiar iteration method to avoid tripping on perl
		3408	# refcount bugs in for. also avoids problems with players
		3409	# and maps saved/destroyed asynchronously.
		3410	warn "begin emergency player save\n";
		3411	for my $login (keys %cf::PLAYER) {
		3412	my $pl = $cf::PLAYER{$login} or next;
		3413	$pl->valid or next;
		3414	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3415	$pl->save;
		3416	}
		3417	warn "end emergency player save\n";
		3418
		3419	warn "begin emergency map save\n";
		3420	for my $path (keys %cf::MAP) {
		3421	my $map = $cf::MAP{$path} or next;
		3422	$map->valid or next;
		3423	$map->save;
		3424	}
		3425	warn "end emergency map save\n";
		3426
		3427	warn "begin emergency database checkpoint\n";
		3428	BDB::db_env_txn_checkpoint $DB_ENV;
		3429	warn "end emergency database checkpoint\n";
		3430	};
		3431
		3432	warn "leave emergency perl save\n";
		3433	}
		3434
		3435	sub post_cleanup {
		3436	my ($make_core) = @_;
		3437
		3438	warn Carp::longmess "post_cleanup backtrace"
		3439	if $make_core;
		3440	}
		3441
2026	sub reload() {	3442	sub do_reload_perl() {
2027	# can/must only be called in main	3443	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	3444	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	3445	warn "can only reload from main coroutine";
2030	return;	3446	return;
2031	}	3447	}
2032		3448
2033	warn "reloading...";	3449	warn "reloading...";
2034		3450
2035	local $FREEZE = 1;	3451	warn "entering sync_job";
		3452
		3453	cf::sync_job {
		3454	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	3455	cf::emergency_save;
		3456	cf::write_runtime; # external watchdog should not bark
2037		3457
2038	eval {	3458	warn "syncing database to disk";
		3459	BDB::db_env_txn_checkpoint $DB_ENV;
		3460
2039	# if anything goes wrong in here, we should simply crash as we already saved	3461	# if anything goes wrong in here, we should simply crash as we already saved
2040		3462
2041	# cancel all watchers	3463	warn "flushing outstanding aio requests";
2042	for (Event::all_watchers) {	3464	for (;;) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	3465	BDB::flush;
		3466	IO::AIO::flush;
		3467	Coro::cede_notself;
		3468	last unless IO::AIO::nreqs || BDB::nreqs;
		3469	warn "iterate...";
2044	}	3470	}
2045		3471
		3472	++$RELOAD;
		3473
2046	# cancel all extension coros	3474	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	3475	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	3476	%EXT_CORO = ();
2049		3477
2050	# unload all extensions	3478	warn "removing commands";
2051	for (@exts) {	3479	%COMMAND = ();
		3480
		3481	warn "removing ext/exti commands";
		3482	%EXTCMD = ();
		3483	%EXTICMD = ();
		3484
		3485	warn "unloading/nuking all extensions";
		3486	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	3487	warn "... unloading $pkg";
2053	unload_extension $_;	3488
		3489	if (my $cb = $pkg->can ("unload")) {
		3490	eval {
		3491	$cb->($pkg);
		3492	1
		3493	} or warn "$pkg unloaded, but with errors: $@";
2054	}	3494	}
2055		3495
		3496	warn "... nuking $pkg";
		3497	Symbol::delete_package $pkg;
		3498	}
		3499
2056	# unload all modules loaded from $LIBDIR	3500	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	3501	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3502	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		3503
2060	warn "removing <$k>";	3504	warn "... unloading $k";
2061	delete $INC{$k};	3505	delete $INC{$k};
2062		3506
2063	$k =~ s/\.pm$//;	3507	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	3508	$k =~ s/\//::/g;
2065		3509
…		…
2068	}	3512	}
2069		3513
2070	Symbol::delete_package $k;	3514	Symbol::delete_package $k;
2071	}	3515	}
2072		3516
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	3517	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	3518	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3519	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		3520
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	3521	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	3522	delete $INC{"cf.pm"};
		3523	delete $INC{"cf/pod.pm"};
2086		3524
2087	# don't, removes xs symbols, too,	3525	# don't, removes xs symbols, too,
2088	# and global variables created in xs	3526	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	3527	#Symbol::delete_package __PACKAGE__;
2090		3528
2091	# reload cf.pm	3529	warn "unload completed, starting to reload now";
		3530
2092	warn "reloading cf.pm";	3531	warn "reloading cf.pm";
2093	require cf;	3532	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3533	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		3534
2096	# load config and database again	3535	warn "loading config and database again";
2097	cf::cfg_load;	3536	cf::reload_config;
2098	cf::db_load;
2099		3537
2100	# load extensions
2101	warn "load extensions";	3538	warn "loading extensions";
2102	cf::load_extensions;	3539	cf::load_extensions;
2103		3540
2104	# reattach attachments to objects	3541	warn "reattaching attachments to objects/players";
2105	warn "reattach";	3542	_global_reattach; # objects, sockets
2106	_global_reattach;	3543	warn "reattaching attachments to maps";
2107	};	3544	reattach $_ for values %MAP;
		3545	warn "reattaching attachments to players";
		3546	reattach $_ for values %PLAYER;
2108		3547
2109	if ($@) {	3548	warn "leaving sync_job";
		3549
		3550	1
		3551	} or do {
2110	warn $@;	3552	warn $@;
2111	warn "error while reloading, exiting.";	3553	warn "error while reloading, exiting.";
2112	exit 1;	3554	exit 1;
2113	}	3555	};
2114		3556
2115	warn "reloaded successfully";	3557	warn "reloaded";
2116	};	3558	};
2117		3559
2118	#############################################################################	3560	our $RELOAD_WATCHER; # used only during reload
2119		3561
2120	unless ($LINK_MAP) {	3562	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	3563	# doing reload synchronously and two reloads happen back-to-back,
		3564	# coro crashes during coro_state_free->destroy here.
2122		3565
2123	$LINK_MAP->width (41);	3566	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2124	$LINK_MAP->height (41);	3567	undef $RELOAD_WATCHER;
2125	$LINK_MAP->alloc;	3568	do_reload_perl;
2126	$LINK_MAP->path ("{link}");	3569	};
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,
2133	cb => sub {
2134	$_[0]->w->cancel;
2135
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});
2154
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	3570	}
2160
2161	register "<global>", __PACKAGE__;
2162		3571
2163	register_command "reload" => sub {	3572	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	3573	my ($who, $arg) = @_;
2165		3574
2166	if ($who->flag (FLAG_WIZ)) {	3575	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	3576	$who->message ("reloading server.");
		3577	async {
		3578	$Coro::current->{desc} = "perl_reload";
		3579	reload_perl;
		3580	};
2170	}	3581	}
2171	};	3582	};
2172		3583
2173	unshift @INC, $LIBDIR;	3584	unshift @INC, $LIBDIR;
2174		3585
2175	$TICK_WATCHER = Event->timer (	3586	my $bug_warning = 0;
2176	reentrant => 0,	3587
2177	prio => 0,	3588	our @WAIT_FOR_TICK;
2178	at => $NEXT_TICK || $TICK,	3589	our @WAIT_FOR_TICK_BEGIN;
2179	data => WF_AUTOCANCEL,	3590
2180	cb => sub {	3591	sub wait_for_tick {
2181	unless ($FREEZE) {	3592	return unless $TICK_WATCHER->is_active;
		3593	return if $Coro::current == $Coro::main;
		3594
		3595	my $signal = new Coro::Signal;
		3596	push @WAIT_FOR_TICK, $signal;
		3597	$signal->wait;
		3598	}
		3599
		3600	sub wait_for_tick_begin {
		3601	return unless $TICK_WATCHER->is_active;
		3602	return if $Coro::current == $Coro::main;
		3603
		3604	my $signal = new Coro::Signal;
		3605	push @WAIT_FOR_TICK_BEGIN, $signal;
		3606	$signal->wait;
		3607	}
		3608
		3609	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3610	if ($Coro::current != $Coro::main) {
		3611	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3612	unless ++$bug_warning > 10;
		3613	return;
		3614	}
		3615
		3616	$NOW = $tick_start = EV::now;
		3617
2182	cf::server_tick; # one server iteration	3618	cf::server_tick; # one server iteration
		3619
2183	$RUNTIME += $TICK;	3620	$RUNTIME += $TICK;
2184	}	3621	$NEXT_TICK = $_[0]->at;
2185		3622
2186	$NEXT_TICK += $TICK;	3623	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187		3624	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188	# if we are delayed by four ticks or more, skip them all	3625	Coro::async_pool {
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3626	$Coro::current->{desc} = "runtime saver";
2190
2191	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;
2193	},
2194	);
2195
2196	IO::AIO::max_poll_time $TICK * 0.2;
2197
2198	Event->io (
2199	fd => IO::AIO::poll_fileno,
2200	poll => 'r',
2201	prio => 5,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,
2208	after => 0,
2209	interval => 10,
2210	cb => sub {
2211	(Coro::unblock_sub {
2212	write_runtime	3627	write_runtime
2213	or warn "ERROR: unable to write runtime file: $!";	3628	or warn "ERROR: unable to write runtime file: $!";
2214	})->();	3629	};
2215	},	3630	}
2216	);	3631
		3632	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3633	$sig->send;
		3634	}
		3635	while (my $sig = shift @WAIT_FOR_TICK) {
		3636	$sig->send;
		3637	}
		3638
		3639	$LOAD = ($NOW - $tick_start) / $TICK;
		3640	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3641
		3642	_post_tick;
		3643	};
		3644	$TICK_WATCHER->priority (EV::MAXPRI);
		3645
		3646	{
		3647	# configure BDB
		3648
		3649	BDB::min_parallel 8;
		3650	BDB::max_poll_reqs $TICK * 0.1;
		3651	$Coro::BDB::WATCHER->priority (1);
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	# configure IO::AIO
		3689
		3690	IO::AIO::min_parallel 8;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$Coro::AIO::WATCHER->priority (1);
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2217		3737
2218	END { cf::emergency_save }	3738	END { cf::emergency_save }
2219		3739
2220	1	3740	1
2221		3741

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