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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.365 by root, Tue Sep 11 13:27:56 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
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 ();
		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 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		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
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	96	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	97
		98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
56		104
57	binmode STDOUT;	105	binmode STDOUT;
58	binmode STDERR;	106	binmode STDERR;
59		107
60	# read virtual server time, if available	108	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
65	}	113	}
66		114
67	mkdir cf::localdir;	115	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		117
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
76		121
77	#############################################################################	122	#############################################################################
78		123
79	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
80		125
…		…
87	=item $cf::RUNTIME	132	=item $cf::RUNTIME
88		133
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	135	every server tick.
91		136
92	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		140
94	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
96		145
97	=item $cf::NOW	146	=item $cf::NOW
98		147
99	The time of the last (current) server tick.	148	The time of the last (current) server tick.
100		149
101	=item $cf::TICK	150	=item $cf::TICK
102		151
103	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
104		163
105	=item %cf::CFG	164	=item %cf::CFG
106		165
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
109		180
110	=back	181	=back
111		182
112	=cut	183	=cut
113		184
114	BEGIN {	185	BEGIN {
115	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	187	my $msg = join "", @_;
117	utf8::encode $msg;
118		188
119	$msg .= "\n"	189	$msg .= "\n"
120	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
121		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
122	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
123	};	195	};
124	}	196	}
125		197
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		205
133	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	207	# within the Safe compartment.
135	for my $pkg (qw(	208	for my $pkg (qw(
136	cf::global cf::attachable	209	cf::global cf::attachable
…		…
145		218
146	$Event::DIED = sub {	219	$Event::DIED = sub {
147	warn "error in event callback: @_";	220	warn "error in event callback: @_";
148	};	221	};
149		222
150	my %ext_pkg;	223	#############################################################################
151	my @exts;
152	my @hook;
153		224
154	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
155		226
156	=over 4	227	=over 4
157		228
158	=cut	229	=item dumpval $ref
159		230
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
161		251
162	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
163		253
164	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
165		255
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
174		257
175	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
176		259
177	=cut	260	=cut
178		261
179	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
181	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
183		266
184	=item cf::lock_wait $string	267	=item cf::lock_wait $string
185		268
186	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
187		270
…		…
190	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
193	returned.	276	returned.
194		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
195	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
197		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
198	=cut	288	=cut
199		289
200	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
201		292
202	sub lock_wait($) {	293	sub lock_wait($) {
203	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
204		300
205	# wait for lock, if any	301	# wait for lock, if any
206	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	304	Coro::schedule;
…		…
214		310
215	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
216	lock_wait $key;	312	lock_wait $key;
217		313
218	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
219		316
220	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
223	}	321	}
224	}	322	}
225		323
226	=item cf::async { BLOCK }	324	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	325	my ($key) = @_;
235		326
236	Coro::async {	327	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	328	}
241		329
242	sub freeze_mainloop {	330	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
244		332
245	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
246	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
247	$guard	337	$guard
248	}	338	}
249		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
		405
250	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
251		407
252	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
255		412
256	If it must be done, put the blocking parts into C<sync_job>. This will run	413	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	414	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	415	server will be frozen during this time, so the block should either finish
259	fast or be very important.	416	fast or be very important.
…		…
262		419
263	sub sync_job(&) {	420	sub sync_job(&) {
264	my ($job) = @_;	421	my ($job) = @_;
265		422
266	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
267	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
269		428
270	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	430	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	431	my $freeze_guard = freeze_mainloop;
273		432
274	my $busy = 1;	433	my $busy = 1;
275	my @res;	434	my @res;
276		435
277	(Coro::async {	436	(async {
278	@res = eval { $job->() };	437	@res = eval { $job->() };
279	warn $@ if $@;	438	warn $@ if $@;
280	undef $busy;	439	undef $busy;
281	})->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
282		441
283	while ($busy) {	442	while ($busy) {
284	Coro::cede_notself;	443	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
287		452
288	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
289	} else {	454	} else {
290	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
291		456
292	$job->()	457	$job->()
293	}	458	}
294	}	459	}
295		460
296	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
297		462
298	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
300		465
301	=cut	466	=cut
302		467
303	sub coro(&) {	468	sub async_ext(&) {
304	my $cb = shift;	469	my $cb = shift;
305		470
306	my $coro = &cf::async ($cb);	471	my $coro = &Coro::async ($cb);
307		472
308	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
310	});	475	});
311	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
312		477
313	$coro	478	$coro
314	}	479	}
315		480
316	sub write_runtime {	481	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		482
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
320	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
321		487
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		489
326	aio_fsync $fh	490	sub fork_call(&@) {
327	and return;	491	my ($cb, @args) = @_;
328		492
329	close $fh	493	# we seemingly have to make a local copy of the whole thing,
330	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
331		496
332	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
333	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
334		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
335	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	641	}
337		642
338	=back	643	=back
339		644
340	=cut	645	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		646
462	#############################################################################	647	#############################################################################
463		648
464	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
465		650
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
469		654
470	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	657	Crossfire TRT).
473		658
474	=over 4	659	=over 4
475		660
476	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
477		662
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	777	our @CB_MAP = ();
593		778
594	my %attachment;	779	my %attachment;
595		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
596	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
598		789
599	use sort 'stable';	790	use sort 'stable';
600		791
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
635		826
636	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		831
641	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	833	my $pkg = shift @arg;
643		834
644	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
674	}	865	}
675		866
676	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
677	} else {	868	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	870	}
680		871
681	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
682	}	873	}
683		874
…		…
685	if (ref $_[0]) {	876	if (ref $_[0]) {
686	_object_attach @_;	877	_object_attach @_;
687	} else {	878	} else {
688	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
689	}	880	}
		881	_recalc_want;
690	};	882	};
691		883
692	# all those should be optimised	884	# all those should be optimised
693	sub cf::attachable::detach {	885	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
698	reattach ($obj);	890	reattach ($obj);
699	} else {	891	} else {
700	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
701	}	893	}
		894	_recalc_want;
702	};	895	};
703		896
704	sub cf::attachable::attached {	897	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
706		899
…		…
721	";	914	";
722	die if $@;	915	die if $@;
723	}	916	}
724		917
725	our $override;	918	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		920
728	sub override {	921	sub override {
729	$override = 1;	922	$override = 1;
730	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
731	}	924	}
732		925
733	sub do_invoke {	926	sub do_invoke {
734	my $event = shift;	927	my $event = shift;
735	my $callbacks = shift;	928	my $callbacks = shift;
736		929
737	@invoke_results = ();	930	@INVOKE_RESULTS = ();
738		931
739	local $override;	932	local $override;
740		933
741	for (@$callbacks) {	934	for (@$callbacks) {
742	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
759		952
760	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
761		954
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		958
766	=back	959	=back
767		960
768	=cut	961	=cut
769		962
770	#############################################################################	963	#############################################################################
771	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
772		976
773	sub reattach {	977	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		982
777	my $registry = $obj->registry;	983	my $registry = $obj->registry;
778		984
779	@$registry = ();	985	@$registry = ();
780		986
…		…
819	);	1025	);
820		1026
821	sub object_freezer_save {	1027	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
823		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
824	sync_job {	1032	sync_job {
825	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
828		1037
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1042	close $fh;
834		1043
835	if (@$objs) {	1044	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1050	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
843	}	1052	}
844	} else {	1053	} else {
845	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
851	}	1060	}
852	} else {	1061	} else {
853	aio_unlink $filename;	1062	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
855	}	1064	}
856	}	1065	};
		1066
		1067	undef $guard;
857	}	1068	}
858		1069
859	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
861		1072
…		…
866		1077
867	sub object_thawer_load {	1078	sub object_thawer_load {
868	my ($filename) = @_;	1079	my ($filename) = @_;
869		1080
870	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
871		1084
872	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
873	or return;	1086	or return;
874		1087
875	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
877	or return;	1090	or return;
		1091
		1092	undef $guard;
878	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1094	}
880		1095
		1096	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
883	return ($data, $av);	1100	($data, $av)
884	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
885		1108
886	#############################################################################	1109	#############################################################################
887	# command handling &c	1110	# command handling &c
888		1111
889	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1126	}
904		1127
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1129
907	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
908		1135
909	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
910	called.	1137	called.
911		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
912	=cut	1150	=cut
913		1151
914	sub register_extcmd {	1152	sub register_extcmd {
915	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
916		1154
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
921	}	1162	}
922		1163
923	cf::player->attach (	1164	cf::player->attach (
924	on_command => sub {	1165	on_command => sub {
925	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1175	cf::override;
935	},	1176	},
936	on_extcmd => sub {	1177	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
938		1179
939	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1181
941	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
947	} else {	1197	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1199	}
950		1200
951	cf::override;	1201	cf::override;
952	},	1202	},
953	);	1203	);
954		1204
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
962	my ($path) = @_;	1603	my ($path) = @_;
963		1604
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1606
970	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
971		1608	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1610	if $region->specificity > $specificity;
974		1611	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1612	}
1004		1613
1005	# remove commands	1614	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1615	}
1111		1616
1112	=back	1617	=back
1113
1114		1618
1115	=head3 cf::map	1619	=head3 cf::map
1116		1620
1117	=over 4	1621	=over 4
1118		1622
…		…
1121	package cf::map;	1625	package cf::map;
1122		1626
1123	use Fcntl;	1627	use Fcntl;
1124	use Coro::AIO;	1628	use Coro::AIO;
1125		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1126	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1128		1636
1129	sub generate_random_map {	1637	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1640	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1146	}	1780	}
1147		1781
1148	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1149	# all maps in C++...	1783	# all maps in C++...
1150	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1152		1786
1153	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1155	}	1789	}
1156		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1157	sub try_load_header($) {	1807	sub load_header_from($) {
1158	my ($path) = @_;	1808	my ($self, $path) = @_;
1159		1809
1160	utf8::encode $path;	1810	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1162	or return;	1812	or return;
1163		1813
1164	my $map = cf::map::new	1814	$self->_load_header ($f)
1165	or return;	1815	or return;
1166		1816
1167	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1169		1819
1170	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1171	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1172		1866
1173	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1174		1869
1175	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1176	}	1874	}
1177		1875
1178	sub find;	1876	sub find;
1179	sub find {	1877	sub find {
1180	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1181		1879
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1188		1884
1189	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1888
1192	# do it the slow way	1889	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1890	or return;
1211		1891
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1224		1893
1225	Coro::cede;	1894	$map->load_header
		1895	or return;
1226		1896
1227	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1228	$map->reset;	1902	$map->reset;
1229	undef $guard;
1230	$map = find $path	1903	return find $path;
1231	or return;
1232	}	1904	}
1233		1905
1234	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1235	}	1907	}
1236	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1237		1912
1238	sub load {	1913	sub load {
1239	my ($self) = @_;	1914	my ($self) = @_;
1240		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1241	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1243		1922
		1923	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		1925
1246	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1247		1927
1248	$self->alloc;	1928	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1250	or return;	1936	or return;
1251		1937
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1939	if delete $self->{load_original};
1254		1940
1255	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1942	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	1945	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1260	}	1949	}
1261	}	1950	}
1262		1951
1263	Coro::cede;	1952	$f->resolve_delayed_derefs;
1264		1953
		1954	cf::cede_to_tick;
1265	# now do the right thing for maps	1955	# now do the right thing for maps
1266	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1278	$self->activate;	1968	$self->activate;
1279	}	1969	}
1280		1970
1281	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1282		1973
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
1284	}	2016	}
1285		2017
1286	sub find_sync {	2018	sub find_sync {
1287	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1288		2020
1289	cf::sync_job { cf::map::find $path, $origin }	2021	cf::sync_job { find $path, $origin }
1290	}	2022	}
1291		2023
1292	sub do_load_sync {	2024	sub do_load_sync {
1293	my ($map) = @_;	2025	my ($map) = @_;
1294		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1295	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
		2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1296	}	2062	}
1297		2063
1298	sub save {	2064	sub save {
1299	my ($self) = @_;	2065	my ($self) = @_;
1300		2066
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1302		2068
1303	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1304		2070
1305	return unless $self->dirty;	2071	return unless $self->dirty;
1306		2072
1307	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		2075
1310	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1311		2077
1312	return if $self->{deny_save};	2078	return if $self->{deny_save};
1313		2079
1314	local $self->{last_access} = $self->last_access;#d#	2080	local $self->{last_access} = $self->last_access;#d#
1315		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
		2085
1316	if ($uniq) {	2086	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2089	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2091	}
1322	}	2092	}
1323		2093
1324	sub swap_out {	2094	sub swap_out {
1325	my ($self) = @_;	2095	my ($self) = @_;
1326		2096
1327	# save first because save cedes	2097	# save first because save cedes
1328	$self->save;	2098	$self->save;
1329		2099
1330	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1331		2101
1332	return if $self->players;	2102	return if $self->players;
1333	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1334	return if $self->{deny_save};	2104	return if $self->{deny_save};
1335		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1336	$self->clear;	2110	$self->clear;
1337	$self->in_memory (cf::MAP_SWAPPED);
1338	}	2111	}
1339		2112
1340	sub reset_at {	2113	sub reset_at {
1341	my ($self) = @_;	2114	my ($self) = @_;
1342		2115
1343	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1346		2118
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		2121
…		…
1354	my ($self) = @_;	2126	my ($self) = @_;
1355		2127
1356	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1357	}	2129	}
1358		2130
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	2131	sub reset {
1381	my ($self) = @_;	2132	my ($self) = @_;
1382		2133
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		2135
1385	return if $self->players;	2136	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		2137
1388	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1389		2149
1390	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1391		2151
		2152	$self->deactivate;
1392	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1393		2155
1394	$self->unlink_save;	2156	$self->unlink_save;
1395	$self->destroy;	2157	$self->destroy;
1396	}	2158	}
1397		2159
1398	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1399		2161
1400	sub nuke {	2162	sub nuke {
1401	my ($self) = @_;	2163	my ($self) = @_;
1402		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1406	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1407	}	2182	}
1408		2183
1409	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2185
1412	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1414	}	2192	[
1415		2193	map {
1416	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1417	}	2200	}
1418		2201
1419	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2203
1422	warn "enter emergency map save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1423		2206
1424	cf::sync_job {	2207	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2208
1429	warn "end emergency map save\n";	2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1430	}	2236	}
1431		2237
1432	package cf;	2238	package cf;
1433		2239
1434	=back	2240	=back
1435		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1436		2299
1437	=head3 cf::object::player	2300	=head3 cf::object::player
1438		2301
1439	=over 4	2302	=over 4
1440		2303
…		…
1454		2317
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2319
1457	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1459	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1462	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1463	}	2345	}
1464		2346
1465	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1466		2348
1467	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1480		2362
1481	=item $player_object->enter_link	2363	=item $player_object->enter_link
1482		2364
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2366
1485	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1487		2369
		2370	Will never block.
		2371
1488	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1489		2373
1490	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2377	fails, to the emergency map position.
1494		2378
1495	Might block.	2379	Might block.
1496		2380
1497	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1498		2392
1499	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2394	my ($self) = @_;
1501		2395
1502	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1503		2397
1504	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2399
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1508		2402
1509	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2404	}
1511		2405
1512	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1514		2410
1515	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1516		2412
1517	unless ($map) {	2413	unless ($map) {
1518	# restore original map position	2414	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1535		2431
1536	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1537		2434
		2435	return unless $self->contr->active;
1538	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1540	}	2440	}
1541		2441
1542	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1543	on_logout => sub {
1544	my ($pl) = @_;
1545		2443
1546	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1547	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1548	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1549	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1550	};	2448	be called at the end of this process.
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555		2449
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)
1571
1572	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1573		2453
1574	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2459
1577	$self->enter_link;	2460	$self->enter_link;
1578		2461
1579	(cf::async {	2462	(async {
1580	$path = new cf::path $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2468	}
		2469	}
1581		2470
		2471	my $map = eval {
1582	my $map = cf::map::find $path->as_string;	2472	my $map = cf::map::find $path;
		2473
		2474	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2475	$map = $map->customise_for ($self);
1584		2476	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2477	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2478	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2479	}
1589		2480
		2481	$map
		2482	};
		2483
		2484	if ($@) {
		2485	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	LOG llevError | logBacktrace, Carp::longmess $@;
		2487	}
		2488
		2489	if ($gen == $self->{_goto_generation}) {
		2490	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2491	$self->leave_link ($map, $x, $y);
		2492	}
		2493
		2494	$done->() if $done;
1591	})->prio (1);	2495	})->prio (1);
1592	}	2496	}
1593		2497
1594	=item $player_object->enter_exit ($exit_object)	2498	=item $player_object->enter_exit ($exit_object)
1595		2499
…		…
1597		2501
1598	sub parse_random_map_params {	2502	sub parse_random_map_params {
1599	my ($spec) = @_;	2503	my ($spec) = @_;
1600		2504
1601	my $rmp = { # defaults	2505	my $rmp = { # defaults
1602	xsize => 10,	2506	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2507	ysize => (cf::rndm 15, 40),
		2508	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2509	#layout => string,
1604	};	2510	};
1605		2511
1606	for (split /\n/, $spec) {	2512	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2513	my ($k, $v) = split /\s+/, $_, 2;
1608		2514
…		…
1612	$rmp	2518	$rmp
1613	}	2519	}
1614		2520
1615	sub prepare_random_map {	2521	sub prepare_random_map {
1616	my ($exit) = @_;	2522	my ($exit) = @_;
		2523
		2524	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2525
1618	# all this does is basically replace the /! path by	2526	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2527	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2528	# that depends on the exit object
1621		2529
1622	my $rmp = parse_random_map_params $exit->msg;	2530	my $rmp = parse_random_map_params $exit->msg;
1623		2531
1624	if ($exit->map) {	2532	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2533	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2534	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2535	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2536	$rmp->{origin_y} = $exit->y;
1629	}	2537	}
1630		2538
1631	$rmp->{random_seed} ||= $exit->random_seed;	2539	$rmp->{random_seed} ||= $exit->random_seed;
1632		2540
1633	my $data = cf::to_json $rmp;	2541	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2542	my $md5 = Digest::MD5::md5_hex $data;
		2543	my $meta = "$RANDOMDIR/$md5.meta";
1635		2544
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2545	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2546	aio_write $fh, 0, (length $data), $data, 0;
		2547	undef $fh;
		2548	aio_rename "$meta~", $meta;
1638		2549
1639	$exit->slaying ("?random/$md5");	2550	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2551	$exit->msg (undef);
1641	}	2552	}
1642	}	2553	}
…		…
1644	sub cf::object::player::enter_exit {	2555	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2556	my ($self, $exit) = @_;
1646		2557
1647	return unless $self->type == cf::PLAYER;	2558	return unless $self->type == cf::PLAYER;
1648		2559
		2560	if ($exit->slaying eq "/!") {
		2561	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2562	# the problem is that $exit might not survive long enough
		2563	# so it needs to be done right now, right here
		2564	cf::sync_job { prepare_random_map $exit };
		2565	}
		2566
		2567	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2568	my $hp = $exit->stats->hp;
		2569	my $sp = $exit->stats->sp;
		2570
1649	$self->enter_link;	2571	$self->enter_link;
1650		2572
		2573	# if exit is damned, update players death & WoR home-position
		2574	$self->contr->savebed ($slaying, $hp, $sp)
		2575	if $exit->flag (FLAG_DAMNED);
		2576
1651	(cf::async {	2577	(async {
1652	$self->deactivate_recursive; # just to be sure	2578	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2579	unless (eval {
1654	prepare_random_map $exit	2580	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2581
1660	1;	2582	1;
1661	}) {	2583	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2584	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2585	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2586	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2587	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2588
1667	warn "ERROR in enter_exit: $@";	2589	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2590	$self->leave_link;
1669	}	2591	}
1670	})->prio (1);	2592	})->prio (1);
…		…
1683		2605
1684	sub cf::client::send_drawinfo {	2606	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2607	my ($self, $text, $flags) = @_;
1686		2608
1687	utf8::encode $text;	2609	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2610	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2611	}
1690		2612
		2613	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2614
		2615	Send a drawinfo or msg packet to the client, formatting the msg for the
		2616	client if neccessary. C<$type> should be a string identifying the type of
		2617	the message, with C<log> being the default. If C<$color> is negative, suppress
		2618	the message unless the client supports the msg packet.
		2619
		2620	=cut
		2621
		2622	our %CHANNEL = (
		2623	"c/identify" => {
		2624	id => "identify",
		2625	title => "Identify",
		2626	reply => undef,
		2627	tooltip => "Items recently identified",
		2628	},
		2629	"c/examine" => {
		2630	id => "examine",
		2631	title => "Examine",
		2632	reply => undef,
		2633	tooltip => "Signs and other items you examined",
		2634	},
		2635	);
		2636
		2637	sub cf::client::send_msg {
		2638	my ($self, $channel, $msg, $color, @extra) = @_;
		2639
		2640	$msg = $self->pl->expand_cfpod ($msg);
		2641
		2642	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2643
		2644	# check predefined channels, for the benefit of C
		2645	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2646
		2647	if (ref $channel) {
		2648	# send meta info to client, if not yet sent
		2649	unless (exists $self->{channel}{$channel->{id}}) {
		2650	$self->{channel}{$channel->{id}} = $channel;
		2651	$self->ext_msg (channel_info => $channel)
		2652	if $self->can_msg;
		2653	}
		2654
		2655	$channel = $channel->{id};
		2656	}
		2657
		2658	return unless @extra || length $msg;
		2659
		2660	if ($self->can_msg) {
		2661	# default colour, mask it out
		2662	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2663	if $color & cf::NDI_DEF;
		2664
		2665	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2666	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2667	} else {
		2668	if ($color >= 0) {
		2669	# replace some tags by gcfclient-compatible ones
		2670	for ($msg) {
		2671	1 while
		2672	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2673	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2674	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2675	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2676	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2677	}
		2678
		2679	$color &= cf::NDI_COLOR_MASK;
		2680
		2681	utf8::encode $msg;
		2682
		2683	if (0 && $msg =~ /\[/) {
		2684	# COMMAND/INFO
		2685	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2686	} else {
		2687	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2688	$self->send_packet ("drawinfo $color $msg")
		2689	}
		2690	}
		2691	}
		2692	}
		2693
		2694	=item $client->ext_msg ($type, @msg)
		2695
		2696	Sends an ext event to the client.
		2697
		2698	=cut
		2699
		2700	sub cf::client::ext_msg($$@) {
		2701	my ($self, $type, @msg) = @_;
		2702
		2703	if ($self->extcmd == 2) {
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2705	} elsif ($self->extcmd == 1) { # TODO: remove
		2706	push @msg, msgtype => "event_$type";
		2707	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2708	}
		2709	}
		2710
		2711	=item $client->ext_reply ($msgid, @msg)
		2712
		2713	Sends an ext reply to the client.
		2714
		2715	=cut
		2716
		2717	sub cf::client::ext_reply($$@) {
		2718	my ($self, $id, @msg) = @_;
		2719
		2720	if ($self->extcmd == 2) {
		2721	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2722	} elsif ($self->extcmd == 1) {
		2723	#TODO: version 1, remove
		2724	unshift @msg, msgtype => "reply", msgid => $id;
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2726	}
		2727	}
1691		2728
1692	=item $success = $client->query ($flags, "text", \&cb)	2729	=item $success = $client->query ($flags, "text", \&cb)
1693		2730
1694	Queues a query to the client, calling the given callback with	2731	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2732	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2733	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2734
1698	Queries can fail, so check the return code. Or don't, as queries will become	2735	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2736	become reliable at some point in the future.
1700		2737
1701	=cut	2738	=cut
1702		2739
1703	sub cf::client::query {	2740	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2741	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2749	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2750	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2751
1715	$self->send_packet ($self->{query_queue}[0][0])	2752	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2753	if @{ $self->{query_queue} } == 1;
		2754
		2755	1
1717	}	2756	}
1718		2757
1719	cf::client->attach (	2758	cf::client->attach (
		2759	on_connect => sub {
		2760	my ($ns) = @_;
		2761
		2762	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2763	},
1720	on_reply => sub {	2764	on_reply => sub {
1721	my ($ns, $msg) = @_;	2765	my ($ns, $msg) = @_;
1722		2766
1723	# this weird shuffling is so that direct followup queries	2767	# this weird shuffling is so that direct followup queries
1724	# get handled first	2768	# get handled first
1725	my $queue = delete $ns->{query_queue}	2769	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2770	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2771
1728	(shift @$queue)->[1]->($msg);	2772	(shift @$queue)->[1]->($msg);
		2773	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2774
1730	push @{ $ns->{query_queue} }, @$queue;	2775	push @{ $ns->{query_queue} }, @$queue;
1731		2776
1732	if (@{ $ns->{query_queue} } == @$queue) {	2777	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2778	if (@$queue) {
…		…
1735	} else {	2780	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2781	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2782	}
1738	}	2783	}
1739	},	2784	},
		2785	on_exticmd => sub {
		2786	my ($ns, $buf) = @_;
		2787
		2788	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2789
		2790	if (ref $msg) {
		2791	my ($type, $reply, @payload) =
		2792	"ARRAY" eq ref $msg
		2793	? @$msg
		2794	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2795
		2796	my @reply;
		2797
		2798	if (my $cb = $EXTICMD{$type}) {
		2799	@reply = $cb->($ns, @payload);
		2800	}
		2801
		2802	$ns->ext_reply ($reply, @reply)
		2803	if $reply;
		2804
		2805	} else {
		2806	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2807	}
		2808
		2809	cf::override;
		2810	},
1740	);	2811	);
1741		2812
1742	=item $client->coro (\&cb)	2813	=item $client->async (\&cb)
1743		2814
1744	Create a new coroutine, running the specified callback. The coroutine will	2815	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2816	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2817	or loss of connection).
1747		2818
1748	=cut	2819	=cut
1749		2820
1750	sub cf::client::coro {	2821	sub cf::client::async {
1751	my ($self, $cb) = @_;	2822	my ($self, $cb) = @_;
1752		2823
1753	my $coro = &cf::async ($cb);	2824	my $coro = &Coro::async ($cb);
1754		2825
1755	$coro->on_destroy (sub {	2826	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2827	delete $self->{_coro}{$coro+0};
1757	});	2828	});
1758		2829
…		…
1785	our $safe = new Safe "safe";	2856	our $safe = new Safe "safe";
1786	our $safe_hole = new Safe::Hole;	2857	our $safe_hole = new Safe::Hole;
1787		2858
1788	$SIG{FPE} = 'IGNORE';	2859	$SIG{FPE} = 'IGNORE';
1789		2860
1790	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2861	$safe->permit_only (Opcode::opset qw(
		2862	:base_core :base_mem :base_orig :base_math
		2863	grepstart grepwhile mapstart mapwhile
		2864	sort time
		2865	));
1791		2866
1792	# here we export the classes and methods available to script code	2867	# here we export the classes and methods available to script code
1793		2868
1794	=pod	2869	=pod
1795		2870
1796	The following fucntions and emthods are available within a safe environment:	2871	The following functions and methods are available within a safe environment:
1797		2872
1798	cf::object contr pay_amount pay_player map	2873	cf::object
		2874	contr pay_amount pay_player map x y force_find force_add
		2875	insert remove name archname title slaying race decrease_ob_nr
		2876
1799	cf::object::player player	2877	cf::object::player
1800	cf::player peaceful	2878	player
1801	cf::map trigger	2879
		2880	cf::player
		2881	peaceful
		2882
		2883	cf::map
		2884	trigger
1802		2885
1803	=cut	2886	=cut
1804		2887
1805	for (	2888	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	2889	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2890	insert remove inv name archname title slaying race
		2891	decrease_ob_nr)],
1807	["cf::object::player" => qw(player)],	2892	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	2893	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	2894	["cf::map" => qw(trigger)],
1810	) {	2895	) {
1811	no strict 'refs';	2896	no strict 'refs';
…		…
1882	=back	2967	=back
1883		2968
1884	=cut	2969	=cut
1885		2970
1886	#############################################################################	2971	#############################################################################
		2972	# the server's init and main functions
1887		2973
1888	=head2 EXTENSION DATABASE SUPPORT	2974	sub load_facedata($) {
		2975	my ($path) = @_;
1889		2976
1890	Crossfire maintains a very simple database for extension use. It can	2977	# HACK to clear player env face cache, we need some signal framework
1891	currently store anything that can be serialised using Storable, which	2978	# for this (global event?)
1892	excludes objects.	2979	%ext::player_env::MUSIC_FACE_CACHE = ();
1893		2980
1894	The parameter C<$family> should best start with the name of the extension	2981	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1895	using it, it should be unique.
1896		2982
1897	=over 4	2983	warn "loading facedata from $path\n";
1898		2984
1899	=item $hashref = cf::db_get $family	2985	my $facedata;
		2986	0 < aio_load $path, $facedata
		2987	or die "$path: $!";
1900		2988
1901	Return a hashref for use by the extension C<$family>, which can be	2989	$facedata = Coro::Storable::thaw $facedata;
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904		2990
1905	=item $value = cf::db_get $family => $key	2991	$facedata->{version} == 2
		2992	or cf::cleanup "$path: version mismatch, cannot proceed.";
1906		2993
1907	Returns a single value from the database	2994	# patch in the exptable
1908		2995	$facedata->{resource}{"res/exp_table"} = {
1909	=item cf::db_put $family => $hashref	2996	type => FT_RSRC,
1910		2997	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}
1937
1938	my $pid;
1939
1940	sub db_save() {
1941	waitpid $pid, 0 if $pid;
1942	if (0 == ($pid = fork)) {
1943	$DB->{_meta}{version} = 1;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});	2998	};
		2999	cf::cede_to_tick;
1960		3000
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}	3001	{
		3002	my $faces = $facedata->{faceinfo};
1965		3003
1966	sub db_get($;$) {	3004	while (my ($face, $info) = each %$faces) {
1967	@_ >= 2	3005	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1968	? $DB->{$_[0]}{$_[1]}	3006	cf::face::set_visibility $idx, $info->{visibility};
1969	: ($DB->{$_[0]} ||= { })	3007	cf::face::set_magicmap $idx, $info->{magicmap};
1970	}	3008	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3009	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1971		3010
1972	sub db_put($$;$) {	3011	cf::cede_to_tick;
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	3012	}
1986	);
1987	}
1988		3013
1989	#############################################################################	3014	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	3015	next unless $info->{smooth};
		3016	my $idx = cf::face::find $face
		3017	or next;
		3018	if (my $smooth = cf::face::find $info->{smooth}) {
		3019	cf::face::set_smooth $idx, $smooth;
		3020	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3021	} else {
		3022	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3023	}
1991		3024
1992	sub cfg_load {	3025	cf::cede_to_tick;
		3026	}
		3027	}
		3028
		3029	{
		3030	my $anims = $facedata->{animinfo};
		3031
		3032	while (my ($anim, $info) = each %$anims) {
		3033	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3034	cf::cede_to_tick;
		3035	}
		3036
		3037	cf::anim::invalidate_all; # d'oh
		3038	}
		3039
		3040	{
		3041	# TODO: for gcfclient pleasure, we should give resources
		3042	# that gcfclient doesn't grok a >10000 face index.
		3043	my $res = $facedata->{resource};
		3044
		3045	my $soundconf = delete $res->{"res/sound.conf"};
		3046
		3047	while (my ($name, $info) = each %$res) {
		3048	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3049	my $data;
		3050
		3051	if ($info->{type} & 1) {
		3052	# prepend meta info
		3053
		3054	my $meta = $enc->encode ({
		3055	name => $name,
		3056	%{ $info->{meta} || {} },
		3057	});
		3058
		3059	$data = pack "(w/a*)*", $meta, $info->{data};
		3060	} else {
		3061	$data = $info->{data};
		3062	}
		3063
		3064	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3065	cf::face::set_type $idx, $info->{type};
		3066
		3067	cf::cede_to_tick;
		3068	}
		3069
		3070	if ($soundconf) {
		3071	$soundconf = $enc->decode (delete $soundconf->{data});
		3072
		3073	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3074	my $sound = $soundconf->{compat}[$_]
		3075	or next;
		3076
		3077	my $face = cf::face::find "sound/$sound->[1]";
		3078	cf::sound::set $sound->[0] => $face;
		3079	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3080	}
		3081
		3082	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3083	my $face = cf::face::find "sound/$v";
		3084	cf::sound::set $k => $face;
		3085	}
		3086	}
		3087	}
		3088
		3089	1
		3090	}
		3091
		3092	register_exticmd fx_want => sub {
		3093	my ($ns, $want) = @_;
		3094
		3095	while (my ($k, $v) = each %$want) {
		3096	$ns->fx_want ($k, $v);
		3097	}
		3098	};
		3099
		3100	sub reload_regions {
		3101	# HACK to clear player env face cache, we need some signal framework
		3102	# for this (global event?)
		3103	%ext::player_env::MUSIC_FACE_CACHE = ();
		3104
		3105	load_resource_file "$MAPDIR/regions"
		3106	or die "unable to load regions file\n";
		3107
		3108	for (cf::region::list) {
		3109	$_->{match} = qr/$_->{match}/
		3110	if exists $_->{match};
		3111	}
		3112	}
		3113
		3114	sub reload_facedata {
		3115	load_facedata "$DATADIR/facedata"
		3116	or die "unable to load facedata\n";
		3117	}
		3118
		3119	sub reload_archetypes {
		3120	load_resource_file "$DATADIR/archetypes"
		3121	or die "unable to load archetypes\n";
		3122	#d# NEED to laod twice to resolve forward references
		3123	# this really needs to be done in an extra post-pass
		3124	# (which needs to be synchronous, so solve it differently)
		3125	load_resource_file "$DATADIR/archetypes"
		3126	or die "unable to load archetypes\n";
		3127	}
		3128
		3129	sub reload_treasures {
		3130	load_resource_file "$DATADIR/treasures"
		3131	or die "unable to load treasurelists\n";
		3132	}
		3133
		3134	sub reload_resources {
		3135	warn "reloading resource files...\n";
		3136
		3137	reload_regions;
		3138	reload_facedata;
		3139	#reload_archetypes;#d#
		3140	reload_archetypes;
		3141	reload_treasures;
		3142
		3143	warn "finished reloading resource files\n";
		3144	}
		3145
		3146	sub init {
		3147	reload_resources;
		3148	}
		3149
		3150	sub reload_config {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	3151	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	3152	or return;
1995		3153
1996	local $/;	3154	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	3155	*CFG = YAML::Syck::Load <$fh>;
1998		3156
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3157	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		3158
		3159	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3160	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3161
2001	if (exists $CFG{mlockall}) {	3162	if (exists $CFG{mlockall}) {
2002	eval {	3163	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	3164	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	3165	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	3166	};
2006	warn $@ if $@;	3167	warn $@ if $@;
2007	}	3168	}
2008	}	3169	}
2009		3170
2010	sub main {	3171	sub main {
2011	# we must not ever block the main coroutine	3172	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	3173	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3174	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	3175	(async {
2015	Event::one_event;	3176	Event::one_event;
2016	})->();	3177	})->prio (Coro::PRIO_MAX);
2017	};	3178	};
2018		3179
2019	cfg_load;	3180	reload_config;
2020	db_load;	3181	db_init;
2021	load_extensions;	3182	load_extensions;
		3183
		3184	$TICK_WATCHER->start;
2022	Event::loop;	3185	Event::loop;
2023	}	3186	}
2024		3187
2025	#############################################################################	3188	#############################################################################
2026	# initialisation	3189	# initialisation and cleanup
2027		3190
		3191	# install some emergency cleanup handlers
		3192	BEGIN {
		3193	for my $signal (qw(INT HUP TERM)) {
		3194	Event->signal (
		3195	reentrant => 0,
		3196	data => WF_AUTOCANCEL,
		3197	signal => $signal,
		3198	prio => 0,
		3199	cb => sub {
		3200	cf::cleanup "SIG$signal";
		3201	},
		3202	);
		3203	}
		3204	}
		3205
		3206	sub write_runtime {
		3207	my $runtime = "$LOCALDIR/runtime";
		3208
		3209	# first touch the runtime file to show we are still running:
		3210	# the fsync below can take a very very long time.
		3211
		3212	IO::AIO::aio_utime $runtime, undef, undef;
		3213
		3214	my $guard = cf::lock_acquire "write_runtime";
		3215
		3216	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3217	or return;
		3218
		3219	my $value = $cf::RUNTIME + 90 + 10;
		3220	# 10 is the runtime save interval, for a monotonic clock
		3221	# 60 allows for the watchdog to kill the server.
		3222
		3223	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3224	and return;
		3225
		3226	# always fsync - this file is important
		3227	aio_fsync $fh
		3228	and return;
		3229
		3230	# touch it again to show we are up-to-date
		3231	aio_utime $fh, undef, undef;
		3232
		3233	close $fh
		3234	or return;
		3235
		3236	aio_rename "$runtime~", $runtime
		3237	and return;
		3238
		3239	warn "runtime file written.\n";
		3240
		3241	1
		3242	}
		3243
		3244	sub emergency_save() {
		3245	my $freeze_guard = cf::freeze_mainloop;
		3246
		3247	warn "enter emergency perl save\n";
		3248
		3249	cf::sync_job {
		3250	# use a peculiar iteration method to avoid tripping on perl
		3251	# refcount bugs in for. also avoids problems with players
		3252	# and maps saved/destroyed asynchronously.
		3253	warn "begin emergency player save\n";
		3254	for my $login (keys %cf::PLAYER) {
		3255	my $pl = $cf::PLAYER{$login} or next;
		3256	$pl->valid or next;
		3257	$pl->save;
		3258	}
		3259	warn "end emergency player save\n";
		3260
		3261	warn "begin emergency map save\n";
		3262	for my $path (keys %cf::MAP) {
		3263	my $map = $cf::MAP{$path} or next;
		3264	$map->valid or next;
		3265	$map->save;
		3266	}
		3267	warn "end emergency map save\n";
		3268
		3269	warn "begin emergency database checkpoint\n";
		3270	BDB::db_env_txn_checkpoint $DB_ENV;
		3271	warn "end emergency database checkpoint\n";
		3272	};
		3273
		3274	warn "leave emergency perl save\n";
		3275	}
		3276
		3277	sub post_cleanup {
		3278	my ($make_core) = @_;
		3279
		3280	warn Carp::longmess "post_cleanup backtrace"
		3281	if $make_core;
		3282	}
		3283
2028	sub reload() {	3284	sub do_reload_perl() {
2029	# can/must only be called in main	3285	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	3286	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	3287	warn "can only reload from main coroutine";
2032	return;	3288	return;
2033	}	3289	}
2034		3290
2035	warn "reloading...";	3291	warn "reloading...";
2036		3292
2037	my $guard = freeze_mainloop;	3293	warn "entering sync_job";
		3294
		3295	cf::sync_job {
		3296	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	3297	cf::emergency_save;
		3298	cf::write_runtime; # external watchdog should not bark
2039		3299
2040	eval {	3300	warn "syncing database to disk";
		3301	BDB::db_env_txn_checkpoint $DB_ENV;
		3302
2041	# if anything goes wrong in here, we should simply crash as we already saved	3303	# if anything goes wrong in here, we should simply crash as we already saved
2042		3304
2043	# cancel all watchers	3305	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	3306	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	3307	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	3308	}
2047		3309
		3310	warn "flushing outstanding aio requests";
		3311	for (;;) {
		3312	BDB::flush;
		3313	IO::AIO::flush;
		3314	Coro::cede;
		3315	last unless IO::AIO::nreqs || BDB::nreqs;
		3316	warn "iterate...";
		3317	}
		3318
		3319	++$RELOAD;
		3320
2048	# cancel all extension coros	3321	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	3322	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	3323	%EXT_CORO = ();
2051		3324
2052	# unload all extensions	3325	warn "removing commands";
2053	for (@exts) {	3326	%COMMAND = ();
		3327
		3328	warn "removing ext/exti commands";
		3329	%EXTCMD = ();
		3330	%EXTICMD = ();
		3331
		3332	warn "unloading/nuking all extensions";
		3333	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	3334	warn "... unloading $pkg";
2055	unload_extension $_;	3335
		3336	if (my $cb = $pkg->can ("unload")) {
		3337	eval {
		3338	$cb->($pkg);
		3339	1
		3340	} or warn "$pkg unloaded, but with errors: $@";
2056	}	3341	}
2057		3342
		3343	warn "... nuking $pkg";
		3344	Symbol::delete_package $pkg;
		3345	}
		3346
2058	# unload all modules loaded from $LIBDIR	3347	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	3348	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3349	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		3350
2062	warn "removing <$k>";	3351	warn "... unloading $k";
2063	delete $INC{$k};	3352	delete $INC{$k};
2064		3353
2065	$k =~ s/\.pm$//;	3354	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3355	$k =~ s/\//::/g;
2067		3356
…		…
2070	}	3359	}
2071		3360
2072	Symbol::delete_package $k;	3361	Symbol::delete_package $k;
2073	}	3362	}
2074		3363
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3364	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3365	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3366	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3367
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3368	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3369	delete $INC{"cf.pm"};
		3370	delete $INC{"cf/pod.pm"};
2088		3371
2089	# don't, removes xs symbols, too,	3372	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3373	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3374	#Symbol::delete_package __PACKAGE__;
2092		3375
2093	# reload cf.pm	3376	warn "unload completed, starting to reload now";
		3377
2094	warn "reloading cf.pm";	3378	warn "reloading cf.pm";
2095	require cf;	3379	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3380	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3381
2098	# load config and database again	3382	warn "loading config and database again";
2099	cf::cfg_load;	3383	cf::reload_config;
2100	cf::db_load;
2101		3384
2102	# load extensions
2103	warn "load extensions";	3385	warn "loading extensions";
2104	cf::load_extensions;	3386	cf::load_extensions;
2105		3387
2106	# reattach attachments to objects	3388	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3389	_global_reattach; # objects, sockets
2108	_global_reattach;	3390	warn "reattaching attachments to maps";
2109	};	3391	reattach $_ for values %MAP;
		3392	warn "reattaching attachments to players";
		3393	reattach $_ for values %PLAYER;
2110		3394
2111	if ($@) {	3395	warn "leaving sync_job";
		3396
		3397	1
		3398	} or do {
2112	warn $@;	3399	warn $@;
2113	warn "error while reloading, exiting.";	3400	warn "error while reloading, exiting.";
2114	exit 1;	3401	exit 1;
2115	}	3402	};
2116		3403
2117	warn "reloaded successfully";	3404	warn "reloaded";
2118	};	3405	};
2119		3406
2120	#############################################################################	3407	our $RELOAD_WATCHER; # used only during reload
2121		3408
2122	unless ($LINK_MAP) {	3409	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3410	# doing reload synchronously and two reloads happen back-to-back,
		3411	# coro crashes during coro_state_free->destroy here.
2124		3412
2125	$LINK_MAP->width (41);	3413	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	3414	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	3415	after => 0,
		3416	data => WF_AUTOCANCEL,
2135	cb => sub {	3417	cb => sub {
2136	$_[0]->w->cancel;	3418	do_reload_perl;
2137		3419	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	3420	},
2156		3421	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3422	}
2162
2163	register "<global>", __PACKAGE__;
2164		3423
2165	register_command "reload" => sub {	3424	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3425	my ($who, $arg) = @_;
2167		3426
2168	if ($who->flag (FLAG_WIZ)) {	3427	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3428	$who->message ("reloading server.");
		3429	async { reload_perl };
2172	}	3430	}
2173	};	3431	};
2174		3432
2175	unshift @INC, $LIBDIR;	3433	unshift @INC, $LIBDIR;
		3434
		3435	my $bug_warning = 0;
		3436
		3437	our @WAIT_FOR_TICK;
		3438	our @WAIT_FOR_TICK_BEGIN;
		3439
		3440	sub wait_for_tick {
		3441	return unless $TICK_WATCHER->is_active;
		3442	return if $Coro::current == $Coro::main;
		3443
		3444	my $signal = new Coro::Signal;
		3445	push @WAIT_FOR_TICK, $signal;
		3446	$signal->wait;
		3447	}
		3448
		3449	sub wait_for_tick_begin {
		3450	return unless $TICK_WATCHER->is_active;
		3451	return if $Coro::current == $Coro::main;
		3452
		3453	my $signal = new Coro::Signal;
		3454	push @WAIT_FOR_TICK_BEGIN, $signal;
		3455	$signal->wait;
		3456	}
		3457
		3458	our $stat_fh;
		3459	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2176		3460
2177	$TICK_WATCHER = Event->timer (	3461	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	3462	reentrant => 0,
		3463	parked => 1,
2179	prio => 0,	3464	prio => 0,
2180	at => $NEXT_TICK || $TICK,	3465	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	3466	data => WF_AUTOCANCEL,
2182	cb => sub {	3467	cb => sub {
		3468	if ($Coro::current != $Coro::main) {
		3469	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3470	unless ++$bug_warning > 10;
		3471	return;
		3472	}
		3473
		3474	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3475
		3476	$NOW = $tick_start = Event::time;
		3477
2183	cf::server_tick; # one server iteration	3478	cf::server_tick; # one server iteration
		3479
2184	$RUNTIME += $TICK;	3480	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3481	$NEXT_TICK += $TICK;
2186		3482
		3483	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3484	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3485	Coro::async_pool {
		3486	write_runtime
		3487	or warn "ERROR: unable to write runtime file: $!";
		3488	};
		3489	}
		3490
		3491	# my $AFTER = Event::time;
		3492	# warn $AFTER - $NOW;#d#
		3493
		3494	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3495	$sig->send;
		3496	}
		3497	while (my $sig = shift @WAIT_FOR_TICK) {
		3498	$sig->send;
		3499	}
		3500
		3501	$NOW = Event::time;
		3502
2187	# if we are delayed by four ticks or more, skip them all	3503	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3504	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		3505
2190	$TICK_WATCHER->at ($NEXT_TICK);	3506	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	3507	$TICK_WATCHER->start;
		3508
		3509	$LOAD = ($NOW - $tick_start) / $TICK;
		3510	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3511
		3512	_post_tick;
		3513
		3514	# gather some statistics#d#
		3515	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3516	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2192	},	3517	},
2193	);	3518	);
2194		3519
		3520	{
		3521	BDB::min_parallel 8;
2195	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2196		3523	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	3524	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2199	poll => 'r',	3526	poll => 'r',
2200	prio => 5,	3527	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549
		3550	cf::sync_job {
		3551	eval {
		3552	BDB::db_env_open
		3553	$DB_ENV,
		3554	$BDBDIR,
		3555	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3556	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3557	0666;
		3558
		3559	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3560
		3561	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3562	| BDB::LOG_AUTOREMOVE, 1);
		3563	$DB_ENV->set_lk_detect;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_CHECKPOINT_WATCHER = Event->timer (
2207	after => 0,	3571	after => 11,
2208	interval => 10,	3572	interval => 60,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2209	cb => sub {	3576	cb => sub {
2210	(Coro::unblock_sub {	3577	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2211	write_runtime	3578	},
2212	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_TRICKLE_WATCHER = Event->timer (
		3581	after => 5,
		3582	interval => 10,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3588	},
		3589	);
		3590	}
		3591
		3592	{
		3593	IO::AIO::min_parallel 8;
		3594
		3595	undef $Coro::AIO::WATCHER;
		3596	IO::AIO::max_poll_time $TICK * 0.1;
		3597	$AIO_POLL_WATCHER = Event->io (
		3598	reentrant => 0,
		3599	data => WF_AUTOCANCEL,
		3600	fd => IO::AIO::poll_fileno,
		3601	poll => 'r',
		3602	prio => 6,
		3603	cb => \&IO::AIO::poll_cb,
		3604	);
		3605	}
		3606
		3607	my $_log_backtrace;
		3608
		3609	sub _log_backtrace {
		3610	my ($msg, @addr) = @_;
		3611
		3612	$msg =~ s/\n//;
		3613
		3614	# limit the # of concurrent backtraces
		3615	if ($_log_backtrace < 2) {
		3616	++$_log_backtrace;
		3617	async {
		3618	my @bt = fork_call {
		3619	@addr = map { sprintf "%x", $_ } @addr;
		3620	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3621	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3622	or die "addr2line: $!";
		3623
		3624	my @funcs;
		3625	my @res = <$fh>;
		3626	chomp for @res;
		3627	while (@res) {
		3628	my ($func, $line) = splice @res, 0, 2, ();
		3629	push @funcs, "[$func] $line";
		3630	}
		3631
		3632	@funcs
		3633	};
		3634
		3635	LOG llevInfo, "[ABT] $msg\n";
		3636	LOG llevInfo, "[ABT] $_\n" for @bt;
		3637	--$_log_backtrace;
2213	})->();	3638	};
		3639	} else {
		3640	LOG llevInfo, "[ABT] $msg\n";
		3641	LOG llevInfo, "[ABT] [suppressed]\n";
2214	},	3642	}
2215	);	3643	}
		3644
		3645	# load additional modules
		3646	use cf::pod;
2216		3647
2217	END { cf::emergency_save }	3648	END { cf::emergency_save }
2218		3649
2219	1	3650	1
2220		3651

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