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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.398 by root, Wed Dec 5 11:08:34 2007 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;
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 4.1 ();
		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::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS 2.01 ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
46		87
47	our %CFG;	88	our %CFG;
48		89
49	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	91	our $RUNTIME;
51		92
52	our %MAP; # all maps	93	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	94	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	95	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	96
56	our %EXT_CORO;	97	# used to convert map paths into valid unix filenames by replacing / by ∕
		98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
57		103
58	binmode STDOUT;	104	binmode STDOUT;
59	binmode STDERR;	105	binmode STDERR;
60		106
61	# read virtual server time, if available	107	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
66	}	112	}
67		113
68	mkdir cf::localdir;	114	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		116
74	# a special map that is always available	117	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		118
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	119	sub cf::map::normalise;
78		120
79	#############################################################################	121	#############################################################################
80		122
81	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
82		124
…		…
89	=item $cf::RUNTIME	131	=item $cf::RUNTIME
90		132
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	134	every server tick.
93		135
94	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		139
96	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
98		144
99	=item $cf::NOW	145	=item $cf::NOW
100		146
101	The time of the last (current) server tick.	147	The time of the last (current) server tick.
102		148
103	=item $cf::TICK	149	=item $cf::TICK
104		150
105	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
106		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
107	=item %cf::CFG	163	=item %cf::CFG
108		164
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	166	from wherever your confdir points to.
		167
		168	=item cf::wait_for_tick, cf::wait_for_tick_begin
		169
		170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		171	returns directly I<after> the tick processing (and consequently, can only wake one process
		172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
111		179
112	=back	180	=back
113		181
114	=cut	182	=cut
115		183
116	BEGIN {	184	BEGIN {
117	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	186	my $msg = join "", @_;
119	utf8::encode $msg;
120		187
121	$msg .= "\n"	188	$msg .= "\n"
122	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
123		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		192
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
143	)) {	213	)) {
144	no strict 'refs';	214	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	216	}
147		217
148	$Event::DIED = sub {	218	$EV::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
163		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::decode_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::encode_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		262
186	=item my $guard = cf::guard { BLOCK }	263	sub encode_json($) { $json_coder->encode ($_[0]) }
187		264	sub decode_json($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		265
208	=item cf::lock_wait $string	266	=item cf::lock_wait $string
209		267
210	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
211		269
212	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
213		271
214	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
217	returned.	275	returned.
218		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
219	Lock names should begin with a unique identifier (for example, find_map	280	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
221		286
222	=cut	287	=cut
223		288
224	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
225		291
226	sub lock_wait($) {	292	sub lock_wait($) {
227	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
228		299
229	# wait for lock, if any	300	# wait for lock, if any
230	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	303	Coro::schedule;
…		…
238		309
239	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
240	lock_wait $key;	311	lock_wait $key;
241		312
242	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
243		315
244	cf::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
247	}	320	}
248	}	321	}
249		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
		329	sub freeze_mainloop {
		330	return unless $TICK_WATCHER->is_active;
		331
		332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
		335	$TICK_WATCHER->stop;
		336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
		410	}
		411
		412	=item cf::async { BLOCK }
		413
		414	Currently the same as Coro::async_pool, meaning you cannot use
		415	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		416	thing you are allowed to do is call C<prio> on it.
		417
		418	=cut
		419
		420	BEGIN { *async = \&Coro::async_pool }
		421
250	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
251		423
252	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
255		428
256	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
259	fast or be very important.	432	fast or be very important.
…		…
262		435
263	sub sync_job(&) {	436	sub sync_job(&) {
264	my ($job) = @_;	437	my ($job) = @_;
265		438
266	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
267	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
269		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
270	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	448	# (but this is cancel-safe)
272	local $FREEZE = 1;	449	my $freeze_guard = freeze_mainloop;
273		450
274	my $busy = 1;	451	my $busy = 1;
275	my @res;	452	my @res;
276		453
277	(Coro::async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	456	@res = eval { $job->() };
279	warn $@ if $@;	457	warn $@ if $@;
280	undef $busy;	458	undef $busy;
281	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
282		460
283	while ($busy) {	461	while ($busy) {
		462	if (Coro::nready) {
284	Coro::cede_notself;	463	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
286	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
287		475
288	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
289	} else {	477	} else {
290	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
291		479
292	$job->()	480	$job->()
293	}	481	}
294	}	482	}
295		483
296	=item $coro = cf::coro { BLOCK }	484	=item $coro = cf::async_ext { BLOCK }
297		485
298	Creates and returns a new coro. This coro is automcatially being canceled	486	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	487	extension calling this is being unloaded.
300		488
301	=cut	489	=cut
302		490
303	sub coro(&) {	491	sub async_ext(&) {
304	my $cb = shift;	492	my $cb = shift;
305		493
306	my $coro; $coro = async {	494	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		495
313	$coro->on_destroy (sub {	496	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	497	delete $EXT_CORO{$coro+0};
315	});	498	});
316	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
317		500
318	$coro	501	$coro
319	}	502	}
320		503
321	sub write_runtime {	504	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		505
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
325	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
326		510
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	511	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		512
331	aio_fsync $fh	513	sub fork_call(&@) {
332	and return;	514	my ($cb, @args) = @_;
333		515
334	close $fh	516	# we seemingly have to make a local copy of the whole thing,
335	or return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
336		519
337	aio_rename "$runtime~", $runtime	520	my @res = Coro::Util::fork_eval {
338	and return;	521	reset_signals;
		522	&$cb
		523	}, @args;
339		524
		525	wantarray ? @res : $res[-1]
		526	}
		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
340	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	664	}
342		665
343	=back	666	=back
344		667
345	=cut	668	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		669
467	#############################################################################	670	#############################################################################
468		671
469	=head2 ATTACHABLE OBJECTS	672	=head2 ATTACHABLE OBJECTS
470		673
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
474		677
475	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	680	Deliantra).
478		681
479	=over 4	682	=over 4
480		683
481	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
482		685
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	799	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	800	our @CB_MAP = ();
598		801
599	my %attachment;	802	my %attachment;
600		803
		804	sub cf::attachable::thawer_merge {
		805	# simply override everything except _meta
		806	local $_[0]{_meta};
		807	%{$_[0]} = %{$_[1]};
		808	}
		809
601	sub _attach_cb($$$$) {	810	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	811	my ($registry, $event, $prio, $cb) = @_;
603		812
604	use sort 'stable';	813	use sort 'stable';
605		814
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
640		849
641	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		854
646	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	856	my $pkg = shift @arg;
648		857
649	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
679	}	888	}
680		889
681	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
682	} else {	891	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	893	}
685		894
686	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
687	}	896	}
688		897
…		…
690	if (ref $_[0]) {	899	if (ref $_[0]) {
691	_object_attach @_;	900	_object_attach @_;
692	} else {	901	} else {
693	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
694	}	903	}
		904	_recalc_want;
695	};	905	};
696		906
697	# all those should be optimised	907	# all those should be optimised
698	sub cf::attachable::detach {	908	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
703	reattach ($obj);	913	reattach ($obj);
704	} else {	914	} else {
705	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
706	}	916	}
		917	_recalc_want;
707	};	918	};
708		919
709	sub cf::attachable::attached {	920	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
711		922
…		…
726	";	937	";
727	die if $@;	938	die if $@;
728	}	939	}
729		940
730	our $override;	941	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		943
733	sub override {	944	sub override {
734	$override = 1;	945	$override = 1;
735	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
736	}	947	}
737		948
738	sub do_invoke {	949	sub do_invoke {
739	my $event = shift;	950	my $event = shift;
740	my $callbacks = shift;	951	my $callbacks = shift;
741		952
742	@invoke_results = ();	953	@INVOKE_RESULTS = ();
743		954
744	local $override;	955	local $override;
745		956
746	for (@$callbacks) {	957	for (@$callbacks) {
747	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
764		975
765	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
766		977
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		981
771	=back	982	=back
772		983
773	=cut	984	=cut
774		985
775	#############################################################################	986	#############################################################################
776	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
777		1030
778	sub reattach {	1031	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	1033	my ($obj) = @_;
		1034
		1035	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		1036
782	my $registry = $obj->registry;	1037	my $registry = $obj->registry;
783		1038
784	@$registry = ();	1039	@$registry = ();
785		1040
…		…
800	cf::attachable->attach (	1055	cf::attachable->attach (
801	prio => -1000000,	1056	prio => -1000000,
802	on_instantiate => sub {	1057	on_instantiate => sub {
803	my ($obj, $data) = @_;	1058	my ($obj, $data) = @_;
804		1059
805	$data = from_json $data;	1060	$data = decode_json $data;
806		1061
807	for (@$data) {	1062	for (@$data) {
808	my ($name, $args) = @$_;	1063	my ($name, $args) = @$_;
809		1064
810	$obj->attach ($name, %{$args || {} });	1065	$obj->attach ($name, %{$args || {} });
…		…
826	sub object_freezer_save {	1081	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
828		1083
829	sync_job {	1084	sync_job {
830	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
833		1089
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1094	close $fh;
839		1095
840	if (@$objs) {	1096	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1102	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
848	}	1104	}
849	} else {	1105	} else {
850	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
856	}	1112	}
857	} else {	1113	} else {
858	aio_unlink $filename;	1114	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
860	}	1116	}
861	}	1117	};
862	}	1118	}
863		1119
864	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
866		1122
…		…
878	or return;	1134	or return;
879		1135
880	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
882	or return;	1138	or return;
		1139
883	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
884	}	1142	}
885		1143
		1144	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
888	return ($data, $av);	1148	($data, $av)
889	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
890		1156
891	#############################################################################	1157	#############################################################################
892	# command handling &c	1158	# command handling &c
893		1159
894	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1174	}
909		1175
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1177
912	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
913		1183
914	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
915	called.	1185	called.
916		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
917	=cut	1198	=cut
918		1199
919	sub register_extcmd {	1200	sub register_extcmd {
920	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
921		1202
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
926	}	1210	}
927		1211
928	cf::player->attach (	1212	cf::player->attach (
929	on_command => sub {	1213	on_command => sub {
930	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1223	cf::override;
940	},	1224	},
941	on_extcmd => sub {	1225	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
943		1227
944	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1229
946	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
952	} else {	1245	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1247	}
955		1248
956	cf::override;	1249	cf::override;
957	},	1250	},
958	);	1251	);
959		1252
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
		1257	for my $path (<$LIBDIR/*.ext>) {
		1258	next unless -r $path;
		1259
		1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
		1317	}
		1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
		1323	};
		1324	}
		1325
		1326	#############################################################################
		1327
		1328	=back
		1329
		1330	=head2 CORE EXTENSIONS
		1331
		1332	Functions and methods that extend core crossfire objects.
		1333
		1334	=cut
		1335
		1336	package cf::player;
		1337
		1338	use Coro::AIO;
		1339
		1340	=head3 cf::player
		1341
		1342	=over 4
		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
		1358	=item cf::player::find $login
		1359
		1360	Returns the given player object, loading it if necessary (might block).
		1361
		1362	=cut
		1363
		1364	sub playerdir($) {
		1365	"$PLAYERDIR/"
		1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1367	}
		1368
		1369	sub path($) {
		1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1371
		1372	(playerdir $login) . "/playerdata"
		1373	}
		1374
		1375	sub find_active($) {
		1376	$cf::PLAYER{$_[0]}
		1377	and $cf::PLAYER{$_[0]}->active
		1378	and $cf::PLAYER{$_[0]}
		1379	}
		1380
		1381	sub exists($) {
		1382	my ($login) = @_;
		1383
		1384	$cf::PLAYER{$login}
		1385	or cf::sync_job { !aio_stat path $login }
		1386	}
		1387
		1388	sub find($) {
		1389	return $cf::PLAYER{$_[0]} || do {
		1390	my $login = $_[0];
		1391
		1392	my $guard = cf::lock_acquire "user_find:$login";
		1393
		1394	$cf::PLAYER{$_[0]} || do {
		1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
		1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
		1409	$cf::PLAYER{$login} = $pl
		1410	}
		1411	}
		1412	}
		1413
		1414	sub save($) {
		1415	my ($pl) = @_;
		1416
		1417	return if $pl->{deny_save};
		1418
		1419	my $path = path $pl;
		1420	my $guard = cf::lock_acquire "user_save:$path";
		1421
		1422	return if $pl->{deny_save};
		1423
		1424	aio_mkdir playerdir $pl, 0770;
		1425	$pl->{last_save} = $cf::RUNTIME;
		1426
		1427	$pl->save_pl ($path);
		1428	cf::cede_to_tick;
		1429	}
		1430
		1431	sub new($) {
		1432	my ($login) = @_;
		1433
		1434	my $self = create;
		1435
		1436	$self->ob->name ($login);
		1437	$self->{deny_save} = 1;
		1438
		1439	$cf::PLAYER{$login} = $self;
		1440
		1441	$self
		1442	}
		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
		1454	=item $pl->quit_character
		1455
		1456	Nukes the player without looking back. If logged in, the connection will
		1457	be destroyed. May block for a long time.
		1458
		1459	=cut
		1460
		1461	sub quit_character {
		1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
		1465
		1466	$pl->{deny_save} = 1;
		1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1468
		1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1470	$pl->deactivate;
		1471	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1472	$pl->ns->destroy if $pl->ns;
		1473
		1474	my $path = playerdir $pl;
		1475	my $temp = "$path~$cf::RUNTIME~deleting~";
		1476	aio_rename $path, $temp;
		1477	delete $cf::PLAYER{$pl->ob->name};
		1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
		1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
		1500	}
		1501
		1502	=item cf::player::list_logins
		1503
		1504	Returns am arrayref of all valid playernames in the system, can take a
		1505	while and may block, so not sync_job-capable, ever.
		1506
		1507	=cut
		1508
		1509	sub list_logins {
		1510	my $dirs = aio_readdir $PLAYERDIR
		1511	or return [];
		1512
		1513	my @logins;
		1514
		1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
		1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1521	aio_read $fh, 0, 512, my $buf, 0 or next;
		1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
		1524
		1525	utf8::decode $login;
		1526	push @logins, $login;
		1527	}
		1528
		1529	\@logins
		1530	}
		1531
		1532	=item $player->maps
		1533
		1534	Returns an arrayref of map paths that are private for this
		1535	player. May block.
		1536
		1537	=cut
		1538
		1539	sub maps($) {
		1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
		1543
		1544	my $files = aio_readdir playerdir $pl
		1545	or return;
		1546
		1547	my @paths;
		1548
		1549	for (@$files) {
		1550	utf8::decode $_;
		1551	next if /\.(?:pl|pst)$/;
		1552	next unless /^$PATH_SEP/o;
		1553
		1554	push @paths, cf::map::normalise "~$pl/$_";
		1555	}
		1556
		1557	\@paths
		1558	}
		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
		1653	=item $player->ext_reply ($msgid, @msg)
		1654
		1655	Sends an ext reply to the player.
		1656
		1657	=cut
		1658
		1659	sub ext_reply($$@) {
		1660	my ($self, $id, @msg) = @_;
		1661
		1662	$self->ns->ext_reply ($id, @msg)
		1663	}
		1664
		1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
967	my ($path) = @_;	1692	my ($path) = @_;
968		1693
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1694	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1695
975	warn "loading '$path' into '$pkg'\n";	1696	for my $region (list) {
976		1697	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1698	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1699	if $region->specificity > $specificity;
979		1700	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1701	}
1009		1702
1010	# remove commands	1703	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1704	}
1116		1705
1117	=back	1706	=back
1118
1119		1707
1120	=head3 cf::map	1708	=head3 cf::map
1121		1709
1122	=over 4	1710	=over 4
1123		1711
…		…
1126	package cf::map;	1714	package cf::map;
1127		1715
1128	use Fcntl;	1716	use Fcntl;
1129	use Coro::AIO;	1717	use Coro::AIO;
1130		1718
		1719	use overload
		1720	'""' => \&as_string,
		1721	fallback => 1;
		1722
1131	our $MAX_RESET = 7200;	1723	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1724	our $DEFAULT_RESET = 3000;
1133		1725
1134	sub generate_random_map {	1726	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1727	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1729	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
		1742	}
		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
		1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1868	"$UNIQUEDIR/$path"
1151	}	1869	}
1152		1870
1153	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1154	# all maps in C++...	1872	# all maps in C++...
1155	sub change_all_map_light {	1873	sub change_all_map_light {
1156	my ($change) = @_;	1874	my ($change) = @_;
1157		1875
1158	$_->change_map_light ($change) for values %cf::MAP;	1876	$_->change_map_light ($change)
		1877	for grep $_->outdoor, values %cf::MAP;
1159	}	1878	}
1160		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
		1888	sub unlink_save {
		1889	my ($self) = @_;
		1890
		1891	utf8::encode (my $save = $self->save_path);
		1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1894	}
		1895
1161	sub try_load_header($) {	1896	sub load_header_from($) {
1162	my ($path) = @_;	1897	my ($self, $path) = @_;
1163		1898
1164	utf8::encode $path;	1899	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1166	or return;	1901	or return;
1167		1902
1168	my $map = cf::map::new	1903	$self->_load_header ($f)
1169	or return;	1904	or return;
1170		1905
1171	$map->load_header ($path)	1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
		1908
		1909	$self->{load_path} = $path;
		1910
		1911	1
		1912	}
		1913
		1914	sub load_header_orig {
		1915	my ($self) = @_;
		1916
		1917	$self->load_header_from ($self->load_path)
		1918	}
		1919
		1920	sub load_header_temp {
		1921	my ($self) = @_;
		1922
		1923	$self->load_header_from ($self->save_path)
		1924	}
		1925
		1926	sub prepare_temp {
		1927	my ($self) = @_;
		1928
		1929	$self->last_access ((delete $self->{last_access})
		1930	|| $cf::RUNTIME); #d#
		1931	# safety
		1932	$self->{instantiate_time} = $cf::RUNTIME
		1933	if $self->{instantiate_time} > $cf::RUNTIME;
		1934	}
		1935
		1936	sub prepare_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->{load_original} = 1;
		1940	$self->{instantiate_time} = $cf::RUNTIME;
		1941	$self->last_access ($cf::RUNTIME);
		1942	$self->instantiate;
		1943	}
		1944
		1945	sub load_header {
		1946	my ($self) = @_;
		1947
		1948	if ($self->load_header_temp) {
		1949	$self->prepare_temp;
		1950	} else {
		1951	$self->load_header_orig
1172	or return;	1952	or return;
		1953	$self->prepare_orig;
		1954	}
1173		1955
1174	$map->{load_path} = $path;	1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
1175		1958
1176	$map	1959	$self->default_region (cf::region::find_by_path $self->{path})
1177	}	1960	unless $self->default_region;
1178		1961
		1962	1
		1963	}
		1964
		1965	sub find;
1179	sub find_map {	1966	sub find {
1180	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1181		1968
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1972	cf::lock_wait "map_find:$path";
1188		1973
1189	$cf::MAP{$key} || do {	1974	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1977
1192	# do it the slow way	1978	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1979	or return;
1207		1980
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1982
1221	if ($map->should_reset) {	1983	$map->load_header
		1984	or return;
		1985
		1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1987	# doing this can freeze the server in a sync job, obviously
		1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1222	$map->reset;	1991	$map->reset;
1223	$map = find_map $path;	1992	return find $path;
1224	}	1993	}
1225		1994
1226	$cf::MAP{$key} = $map	1995	$cf::MAP{$path} = $map
1227	}	1996	}
1228	}	1997	}
		1998
		1999	sub pre_load { }
		2000	sub post_load { }
1229		2001
1230	sub load {	2002	sub load {
1231	my ($self) = @_;	2003	my ($self) = @_;
1232		2004
		2005	local $self->{deny_reset} = 1; # loading can take a long time
		2006
1233	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2010	my $guard = cf::lock_acquire "map_data:$path";
1235		2011
		2012	return unless $self->valid;
1236	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1237		2014
1238	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1239		2016
1240	$self->alloc;	2017	$self->alloc;
1241	$self->load_objects ($self->{load_path}, 1)	2018
		2019	$self->pre_load;
		2020	cf::cede_to_tick;
		2021
		2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1242	or return;	2025	or return;
1243		2026
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	2028	if delete $self->{load_original};
1246		2029
1247	if (my $uniq = $path->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	2031	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1250	$self->clear_unique_items;	2034	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1252	}	2038	}
1253	}	2039	}
1254		2040
		2041	$f->resolve_delayed_derefs;
		2042
		2043	cf::cede_to_tick;
1255	# now do the right thing for maps	2044	# now do the right thing for maps
1256	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	2047	unless $self->difficulty;
		2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1268	$self->activate;	2057	$self->activate;
1269	}	2058	}
1270		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
1271	$self->in_memory (cf::MAP_IN_MEMORY);	2063	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	2064	}
1273		2065
1274	sub load_map_sync {	2066	$self->post_load;
		2067	}
		2068
		2069	sub customise_for {
		2070	my ($self, $ob) = @_;
		2071
		2072	return find "~" . $ob->name . "/" . $self->{path}
		2073	if $self->per_player;
		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
		2078	$self
		2079	}
		2080
		2081	# find and load all maps in the 3x3 area around a map
		2082	sub load_neighbours {
		2083	my ($map) = @_;
		2084
		2085	my @neigh; # diagonal neighbours
		2086
		2087	for (0 .. 3) {
		2088	my $neigh = $map->tile_path ($_)
		2089	or next;
		2090	$neigh = find $neigh, $map
		2091	or next;
		2092	$neigh->load;
		2093
		2094	push @neigh,
		2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2097	}
		2098
		2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
		2101	my $neigh = find $path, $origin
		2102	or next;
		2103	$neigh->load;
		2104	}
		2105	}
		2106
		2107	sub find_sync {
1275	my ($path, $origin) = @_;	2108	my ($path, $origin) = @_;
1276		2109
1277	#warn "load_map_sync<$path, $origin>\n";#d#	2110	cf::sync_job { find $path, $origin }
		2111	}
1278		2112
1279	cf::sync_job {	2113	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	2114	my ($map) = @_;
1281	or return;	2115
1282	$map->load;	2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1283	$map	2117	if $Coro::current == $Coro::main;
		2118
		2119	cf::sync_job { $map->load };
		2120	}
		2121
		2122	our %MAP_PREFETCH;
		2123	our $MAP_PREFETCHER = undef;
		2124
		2125	sub find_async {
		2126	my ($path, $origin, $load) = @_;
		2127
		2128	$path = normalise $path, $origin && $origin->{path};
		2129
		2130	if (my $map = $cf::MAP{$path}) {
		2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2132	}
		2133
		2134	$MAP_PREFETCH{$path} |= $load;
		2135
		2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
		2139	while (%MAP_PREFETCH) {
		2140	while (my ($k, $v) = each %MAP_PREFETCH) {
		2141	if (my $map = find $k) {
		2142	$map->load if $v;
		2143	}
		2144
		2145	delete $MAP_PREFETCH{$k};
		2146	}
		2147	}
		2148	undef $MAP_PREFETCHER;
1284	}	2149	};
		2150	$MAP_PREFETCHER->prio (6);
		2151
		2152	()
1285	}	2153	}
1286		2154
1287	sub save {	2155	sub save {
1288	my ($self) = @_;	2156	my ($self) = @_;
1289		2157
		2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2159
1290	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1291		2161
1292	return unless $self->dirty;	2162	return unless $self->dirty;
1293		2163
1294	my $save = $self->{path}->save_path; utf8::encode $save;	2164	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2165	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		2166
1297	$self->{load_path} = $save;	2167	$self->{load_path} = $save;
1298		2168
1299	return if $self->{deny_save};	2169	return if $self->{deny_save};
1300		2170
		2171	local $self->{last_access} = $self->last_access;#d#
		2172
		2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
		2175	$_->contr->save for $self->players;
		2176	};
		2177
1301	if ($uniq) {	2178	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	2180	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	2181	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	2183	}
1307	}	2184	}
1308		2185
1309	sub swap_out {	2186	sub swap_out {
1310	my ($self) = @_;	2187	my ($self) = @_;
		2188
		2189	# save first because save cedes
		2190	$self->save;
		2191
		2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1311		2193
1312	return if $self->players;	2194	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	2196	return if $self->{deny_save};
1315		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
1316	$self->save;	2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1317	$self->clear;	2202	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2203	}
1320		2204
1321	sub reset_at {	2205	sub reset_at {
1322	my ($self) = @_;	2206	my ($self) = @_;
1323		2207
1324	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1327		2210
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2213
…		…
1335	my ($self) = @_;	2218	my ($self) = @_;
1336		2219
1337	$self->reset_at <= $cf::RUNTIME	2220	$self->reset_at <= $cf::RUNTIME
1338	}	2221	}
1339		2222
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2223	sub reset {
1362	my ($self) = @_;	2224	my ($self) = @_;
1363		2225
		2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2227
1364	return if $self->players;	2228	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2229
1367	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1368		2241
1369	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1370		2243
		2244	$self->deactivate;
1371	$_->clear_links_to ($self) for values %cf::MAP;	2245	$_->clear_links_to ($self) for values %cf::MAP;
		2246	$self->clear;
1372		2247
1373	$self->unlink_save;	2248	$self->unlink_save;
1374	$self->destroy;	2249	$self->destroy;
1375	}	2250	}
1376		2251
1377	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1378		2253
1379	sub nuke {	2254	sub nuke {
1380	my ($self) = @_;	2255	my ($self) = @_;
1381		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
		2260	delete $cf::MAP{$self->path};
		2261
		2262	$self->unlink_save;
		2263
		2264	bless $self, "cf::map";
		2265	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2269
		2270	$cf::MAP{$self->path} = $self;
		2271	}
		2272
1385	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
1386	}	2274	}
1387		2275
1388	sub customise_for {	2276	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2277
1391	if ($map->per_player) {	2278	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
1393	}	2284	[
1394		2285	map {
1395	$map	2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
1396	}	2292	}
1397		2293
1398	sub emergency_save {	2294	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2295
1401	warn "enter emergency map save\n";	2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
1402		2298
1403	cf::sync_job {	2299	=cut
1404	warn "begin emergency map save\n";
1405	$_->save for values %cf::MAP;
1406	};
1407		2300
1408	warn "end emergency map save\n";	2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
		2310	}
		2311
		2312	=item cf::map::unique_maps
		2313
		2314	Returns an arrayref of paths of all shared maps that have
		2315	instantiated unique items. May block.
		2316
		2317	=cut
		2318
		2319	sub unique_maps() {
		2320	[
		2321	map {
		2322	utf8::decode $_;
		2323	/\.map$/
		2324	? normalise $_
		2325	: ()
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
		2327	]
1409	}	2328	}
1410		2329
1411	package cf;	2330	package cf;
1412		2331
1413	=back	2332	=back
1414		2333
		2334	=head3 cf::object
		2335
		2336	=cut
		2337
		2338	package cf::object;
		2339
		2340	=over 4
		2341
		2342	=item $ob->inv_recursive
		2343
		2344	Returns the inventory of the object _and_ their inventories, recursively.
		2345
		2346	=cut
		2347
		2348	sub inv_recursive_;
		2349	sub inv_recursive_ {
		2350	map { $_, inv_recursive_ $_->inv } @_
		2351	}
		2352
		2353	sub inv_recursive {
		2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
		2383	}
		2384
		2385	package cf;
		2386
		2387	=back
1415		2388
1416	=head3 cf::object::player	2389	=head3 cf::object::player
1417		2390
1418	=over 4	2391	=over 4
1419		2392
…		…
1433		2406
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2408
1436	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1438	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1441	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1442	}	2434	}
1443		2435
1444	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1445		2437
1446	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1459		2451
1460	=item $player_object->enter_link	2452	=item $player_object->enter_link
1461		2453
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2455
1464	The player should be reaosnably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	2457	I<MUST> call C<leave_link> as soon as possible, though.
1466		2458
		2459	Will never block.
		2460
1467	=item $player_object->leave_link ($map, $x, $y)	2461	=item $player_object->leave_link ($map, $x, $y)
1468		2462
1469	Moves the player out of the specila link map onto the given map. If the	2463	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2464	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2465	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2466	fails, to the emergency map position.
1473		2467
1474	Might block.	2468	Might block.
1475		2469
1476	=cut	2470	=cut
		2471
		2472	sub link_map {
		2473	unless ($LINK_MAP) {
		2474	$LINK_MAP = cf::map::find "{link}"
		2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2476	$LINK_MAP->load;
		2477	}
		2478
		2479	$LINK_MAP
		2480	}
1477		2481
1478	sub cf::object::player::enter_link {	2482	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2483	my ($self) = @_;
1480		2484
1481	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1482		2486
1483	return if $self->map == $LINK_MAP;	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2488
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1487		2491
1488	$self->enter_map ($LINK_MAP, 20, 20);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2493	}
1490		2494
1491	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1493		2499
1494	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1495		2501
1496	unless ($map) {	2502	unless ($map) {
1497	# restore original map position	2503	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2504	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2505	$map = cf::map::find $map;
1500		2506
1501	unless ($map) {	2507	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2508	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2509	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2510	or die "FATAL: cannot load emergency map\n";
1505	}	2511	}
1506	}	2512	}
1507		2513
1508	($x, $y) = (-1, -1)	2514	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1514		2520
1515	$map->load;	2521	$map->load;
		2522	$map->load_neighbours;
1516		2523
		2524	return unless $self->contr->active;
1517	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1519	}	2529	}
1520		2530
1521	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2532
1525	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1529	};	2537	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2538
1535	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2539	=cut
1552		2540
		2541	our $GOTOGEN;
		2542
1553	sub cf::object::player::goto_map {	2543	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2548
1556	$self->enter_link;	2549	$self->enter_link;
1557		2550
1558	(Coro::async {	2551	(async {
1559	$path = new cf::path $path;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
1560		2553
1561	my $map = cf::map::find_map $path->as_string;	2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
1563		2578	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2579	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1568		2582
		2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1570	})->prio (1);	2597	})->prio (1);
1571	}	2598	}
1572		2599
1573	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1574		2601
…		…
1576		2603
1577	sub parse_random_map_params {	2604	sub parse_random_map_params {
1578	my ($spec) = @_;	2605	my ($spec) = @_;
1579		2606
1580	my $rmp = { # defaults	2607	my $rmp = { # defaults
1581	xsize => 10,	2608	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2609	ysize => (cf::rndm 15, 40),
		2610	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2611	#layout => string,
1583	};	2612	};
1584		2613
1585	for (split /\n/, $spec) {	2614	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2615	my ($k, $v) = split /\s+/, $_, 2;
1587		2616
…		…
1591	$rmp	2620	$rmp
1592	}	2621	}
1593		2622
1594	sub prepare_random_map {	2623	sub prepare_random_map {
1595	my ($exit) = @_;	2624	my ($exit) = @_;
		2625
		2626	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2627
1597	# all this does is basically replace the /! path by	2628	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2629	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2630	# that depends on the exit object
1600		2631
1601	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1602		2633
1603	if ($exit->map) {	2634	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1608	}	2639	}
1609		2640
1610	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1611		2642
1612	my $data = cf::to_json $rmp;	2643	my $data = cf::encode_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
		2645	my $meta = "$RANDOMDIR/$md5.meta";
1614		2646
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
		2649	undef $fh;
		2650	aio_rename "$meta~", $meta;
1617		2651
1618	$exit->slaying ("?random/$md5");	2652	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2653	$exit->msg (undef);
1620	}	2654	}
1621	}	2655	}
…		…
1623	sub cf::object::player::enter_exit {	2657	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2658	my ($self, $exit) = @_;
1625		2659
1626	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1627		2661
		2662	if ($exit->slaying eq "/!") {
		2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
		2666	cf::sync_job { prepare_random_map $exit };
		2667	}
		2668
		2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2670	my $hp = $exit->stats->hp;
		2671	my $sp = $exit->stats->sp;
		2672
1628	$self->enter_link;	2673	$self->enter_link;
1629		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1630	(Coro::async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
		2682	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2683	unless (eval {
1632		2684	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2685
1639	1;	2686	1;
1640	}) {	2687	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2690	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2692
1646	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2694	$self->leave_link;
1648	}	2695	}
1649	})->prio (1);	2696	})->prio (1);
…		…
1662		2709
1663	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1665		2712
1666	utf8::encode $text;	2713	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2715	}
1669		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1670		2875
1671	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1672		2877
1673	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		2881
1677	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	2883	become reliable at some point in the future.
1679		2884
1680	=cut	2885	=cut
1681		2886
1682	sub cf::client::query {	2887	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	2896	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		2898
1694	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1696	}	2903	}
1697		2904
1698	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1699	on_reply => sub {	2911	on_reply => sub {
1700	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1701		2913
1702	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1703	# get handled first	2915	# get handled first
1704	my $queue = delete $ns->{query_queue};	2916	my $queue = delete $ns->{query_queue}
		2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2918
1706	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2921
1708	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1709		2923
1710	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2925	if (@$queue) {
…		…
1713	} else {	2927	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	2929	}
1716	}	2930	}
1717	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
1718	);	2958	);
1719		2959
1720	=item $client->coro (\&cb)	2960	=item $client->async (\&cb)
1721		2961
1722	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2963	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2964	or loss of connection).
1725		2965
1726	=cut	2966	=cut
1727		2967
1728	sub cf::client::coro {	2968	sub cf::client::async {
1729	my ($self, $cb) = @_;	2969	my ($self, $cb) = @_;
1730		2970
1731	my $coro; $coro = async {	2971	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2972
1738	$coro->on_destroy (sub {	2973	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2974	delete $self->{_coro}{$coro+0};
1740	});	2975	});
1741		2976
…		…
1768	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
1770		3005
1771	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
1772		3007
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
1774		3013
1775	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
1776		3015
1777	=pod	3016	=pod
1778		3017
1779	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
1780		3019
1781	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
1782	cf::object::player player	3024	cf::object::player
1783	cf::player peaceful	3025	player
1784	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
1785		3032
1786	=cut	3033	=cut
1787		3034
1788	for (	3035	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
1790	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
1792	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
1793	) {	3042	) {
1794	no strict 'refs';	3043	no strict 'refs';
…		…
1865	=back	3114	=back
1866		3115
1867	=cut	3116	=cut
1868		3117
1869	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
1870		3120
1871	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
1872		3123
1873	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
1875	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		3127
1877	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		3129
1880	=over 4	3130	warn "loading facedata from $path\n";
1881		3131
1882	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
1883		3135
1884	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887		3137
1888	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889		3140
1890	Returns a single value from the database	3141	# patch in the exptable
1891		3142	$facedata->{resource}{"res/exp_table"} = {
1892	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
1893		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	3145	};
		3146	cf::cede_to_tick;
1943		3147
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
1948		3150
1949	sub db_get($;$) {	3151	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}	3153	cf::face::set_visibility $idx, $info->{visibility};
1952	: ($DB->{$_[0]} ||= { })	3154	cf::face::set_magicmap $idx, $info->{magicmap};
1953	}	3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1954		3157
1955	sub db_put($$;$) {	3158	cf::cede_to_tick;
1956	if (@_ >= 3) {
1957	$DB->{$_[0]}{$_[1]} = $_[2];
1958	} else {
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963
1964	cf::global->attach (
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	3159	}
1969	);
1970	}
1971		3160
1972	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
1974		3171
1975	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	3299	or return;
1978		3300
1979	local $/;	3301	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
		3303
		3304	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3305
		3306	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3307	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3308
		3309	if (exists $CFG{mlockall}) {
		3310	eval {
		3311	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3312	and die "WARNING: m(un)lockall failed: $!\n";
		3313	};
		3314	warn $@ if $@;
		3315	}
1981	}	3316	}
1982		3317
1983	sub main {	3318	sub main {
1984	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	3322	(async {
1988	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
1989	})->();	3324	EV::loop EV::LOOP_ONESHOT;
		3325	})->prio (Coro::PRIO_MAX);
1990	};	3326	};
1991		3327
1992	cfg_load;	3328	reload_config;
1993	db_load;	3329	db_init;
1994	load_extensions;	3330	load_extensions;
		3331
		3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1995	Event::loop;	3334	EV::loop;
1996	}	3335	}
1997		3336
1998	#############################################################################	3337	#############################################################################
1999	# initialisation	3338	# initialisation and cleanup
2000		3339
		3340	# install some emergency cleanup handlers
		3341	BEGIN {
		3342	our %SIGWATCHER = ();
		3343	for my $signal (qw(INT HUP TERM)) {
		3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3345	cf::cleanup "SIG$signal";
		3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
		3385	1
		3386	}
		3387
		3388	sub emergency_save() {
		3389	my $freeze_guard = cf::freeze_mainloop;
		3390
		3391	warn "enter emergency perl save\n";
		3392
		3393	cf::sync_job {
		3394	# use a peculiar iteration method to avoid tripping on perl
		3395	# refcount bugs in for. also avoids problems with players
		3396	# and maps saved/destroyed asynchronously.
		3397	warn "begin emergency player save\n";
		3398	for my $login (keys %cf::PLAYER) {
		3399	my $pl = $cf::PLAYER{$login} or next;
		3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3402	$pl->save;
		3403	}
		3404	warn "end emergency player save\n";
		3405
		3406	warn "begin emergency map save\n";
		3407	for my $path (keys %cf::MAP) {
		3408	my $map = $cf::MAP{$path} or next;
		3409	$map->valid or next;
		3410	$map->save;
		3411	}
		3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
		3417	};
		3418
		3419	warn "leave emergency perl save\n";
		3420	}
		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2001	sub reload() {	3429	sub do_reload_perl() {
2002	# can/must only be called in main	3430	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3432	warn "can only reload from main coroutine";
2005	return;	3433	return;
2006	}	3434	}
2007		3435
2008	warn "reloading...";	3436	warn "reloading...";
2009		3437
2010	local $FREEZE = 1;	3438	warn "entering sync_job";
		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2012		3444
2013	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
2014	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
2015		3449
2016	# cancel all watchers	3450	warn "flushing outstanding aio requests";
2017	for (Event::all_watchers) {	3451	for (;;) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3452	BDB::flush;
		3453	IO::AIO::flush;
		3454	Coro::cede_notself;
		3455	last unless IO::AIO::nreqs || BDB::nreqs;
		3456	warn "iterate...";
2019	}	3457	}
2020		3458
		3459	++$RELOAD;
		3460
2021	# cancel all extension coros	3461	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	3463	%EXT_CORO = ();
2024		3464
2025	# unload all extensions	3465	warn "removing commands";
2026	for (@exts) {	3466	%COMMAND = ();
		3467
		3468	warn "removing ext/exti commands";
		3469	%EXTCMD = ();
		3470	%EXTICMD = ();
		3471
		3472	warn "unloading/nuking all extensions";
		3473	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	3474	warn "... unloading $pkg";
2028	unload_extension $_;	3475
		3476	if (my $cb = $pkg->can ("unload")) {
		3477	eval {
		3478	$cb->($pkg);
		3479	1
		3480	} or warn "$pkg unloaded, but with errors: $@";
2029	}	3481	}
2030		3482
		3483	warn "... nuking $pkg";
		3484	Symbol::delete_package $pkg;
		3485	}
		3486
2031	# unload all modules loaded from $LIBDIR	3487	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	3488	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3489	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		3490
2035	warn "removing <$k>";	3491	warn "... unloading $k";
2036	delete $INC{$k};	3492	delete $INC{$k};
2037		3493
2038	$k =~ s/\.pm$//;	3494	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	3495	$k =~ s/\//::/g;
2040		3496
…		…
2043	}	3499	}
2044		3500
2045	Symbol::delete_package $k;	3501	Symbol::delete_package $k;
2046	}	3502	}
2047		3503
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	3504	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3507
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	3508	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2061		3511
2062	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3513	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2065		3515
2066	# reload cf.pm	3516	warn "unload completed, starting to reload now";
		3517
2067	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2068	require cf;	3519	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		3521
2071	# load config and database again	3522	warn "loading config and database again";
2072	cf::cfg_load;	3523	cf::reload_config;
2073	cf::db_load;
2074		3524
2075	# load extensions
2076	warn "load extensions";	3525	warn "loading extensions";
2077	cf::load_extensions;	3526	cf::load_extensions;
2078		3527
2079	# reattach attachments to objects	3528	warn "reattaching attachments to objects/players";
2080	warn "reattach";	3529	_global_reattach; # objects, sockets
2081	_global_reattach;	3530	warn "reattaching attachments to maps";
2082	};	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2083		3534
2084	if ($@) {	3535	warn "leaving sync_job";
		3536
		3537	1
		3538	} or do {
2085	warn $@;	3539	warn $@;
2086	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2087	exit 1;	3541	exit 1;
2088	}	3542	};
2089		3543
2090	warn "reloaded successfully";	3544	warn "reloaded";
2091	};	3545	};
2092		3546
2093	#############################################################################	3547	our $RELOAD_WATCHER; # used only during reload
2094		3548
2095	unless ($LINK_MAP) {	3549	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
2097		3552
2098	$LINK_MAP->width (41);	3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2099	$LINK_MAP->height (41);	3554	undef $RELOAD_WATCHER;
2100	$LINK_MAP->alloc;	3555	do_reload_perl;
2101	$LINK_MAP->path ("{link}");	3556	};
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,
2108	cb => sub {
2109	$_[0]->w->cancel;
2110
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});
2129
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3557	}
2135
2136	register "<global>", __PACKAGE__;
2137		3558
2138	register_command "reload" => sub {	3559	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2140		3561
2141	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
2145	}	3568	}
2146	};	3569	};
2147		3570
2148	unshift @INC, $LIBDIR;	3571	unshift @INC, $LIBDIR;
2149		3572
2150	$TICK_WATCHER = Event->timer (	3573	my $bug_warning = 0;
2151	reentrant => 0,	3574
2152	prio => 0,	3575	our @WAIT_FOR_TICK;
2153	at => $NEXT_TICK || $TICK,	3576	our @WAIT_FOR_TICK_BEGIN;
2154	data => WF_AUTOCANCEL,	3577
2155	cb => sub {	3578	sub wait_for_tick {
2156	unless ($FREEZE) {	3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
2157	cf::server_tick; # one server iteration	3605	cf::server_tick; # one server iteration
		3606
2158	$RUNTIME += $TICK;	3607	$RUNTIME += $TICK;
2159	}
2160
2161	$NEXT_TICK += $TICK;	3608	$NEXT_TICK += $TICK;
2162		3609
2163	# if we are delayed by four ticks or more, skip them all	3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
2165		3612	Coro::async_pool {
2166	$TICK_WATCHER->at ($NEXT_TICK);	3613	$Coro::current->{desc} = "runtime saver";
2167	$TICK_WATCHER->start;
2168	},
2169	);
2170
2171	IO::AIO::max_poll_time $TICK * 0.2;
2172
2173	Event->io (
2174	fd => IO::AIO::poll_fileno,
2175	poll => 'r',
2176	prio => 5,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,
2183	after => 0,
2184	interval => 10,
2185	cb => sub {
2186	(Coro::unblock_sub {
2187	write_runtime	3614	write_runtime
2188	or warn "ERROR: unable to write runtime file: $!";	3615	or warn "ERROR: unable to write runtime file: $!";
2189	})->();	3616	};
2190	},	3617	}
2191	);	3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
		3642	sub {
		3643	$status = $!;
		3644	$current->ready; undef $current;
		3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
		3650	)
		3651	};
		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	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		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;
		3737
		3738	END { cf::emergency_save }
2192		3739
2193	1	3740	1
2194		3741

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