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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.125 by root, Tue Jan 2 23:06:39 2007 UTC vs.
Revision 1.385 by root, Fri Oct 12 19:13:26 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::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 2.51 ();
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_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
106		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
127		198
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		206
135	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	208	# within the Safe compartment.
137	for my $pkg (qw(	209	for my $pkg (qw(
138	cf::global cf::attachable	210	cf::global cf::attachable
…		…
147		219
148	$Event::DIED = sub {	220	$Event::DIED = sub {
149	warn "error in event callback: @_";	221	warn "error in event callback: @_";
150	};	222	};
151		223
152	my %ext_pkg;	224	#############################################################################
153	my @exts;
154	my @hook;
155		225
156	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
157		227
158	=over 4	228	=over 4
159		229
160	=cut	230	=item dumpval $ref
161		231
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
163		252
164	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
165		254
166	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
167		256
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
176		258
177	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
178		260
179	=cut	261	=cut
180		262
181	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		264
186	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
187		266	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		267
208	=item cf::lock_wait $string	268	=item cf::lock_wait $string
209		269
210	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
211		271
212	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
213		273
214	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
217	returned.	277	returned.
218		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
219	Lock names should begin with a unique identifier (for example, find_map	282	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	283	uses map_find and cf::map::load uses map_load).
		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
221		288
222	=cut	289	=cut
223		290
224	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
225		293
226	sub lock_wait($) {	294	sub lock_wait($) {
227	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
228		301
229	# wait for lock, if any	302	# wait for lock, if any
230	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	305	Coro::schedule;
…		…
238		311
239	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
240	lock_wait $key;	313	lock_wait $key;
241		314
242	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
243		317
244	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
247	}	322	}
248	}	323	}
249		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
		331	sub freeze_mainloop {
		332	return unless $TICK_WATCHER->is_active;
		333
		334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
		337	$TICK_WATCHER->stop;
		338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	The design of crossfire+ requires that the main coro ($Coro::main) is	411	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	412	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.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
255		415
256	If it must be done, put the blocking parts into C<sync_job>. This will run	416	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	417	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	418	server will be frozen during this time, so the block should either finish
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	local $FREEZE = 1;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
284	Coro::cede_notself;	449	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
287		458
288	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
289	} else {	460	} else {
290	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
291		462
292	$job->()	463	$job->()
293	}	464	}
294	}	465	}
295		466
296	=item $coro = cf::coro { BLOCK }	467	=item $coro = cf::async_ext { BLOCK }
297		468
298	Creates and returns a new coro. This coro is automcatially being canceled	469	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	470	extension calling this is being unloaded.
300		471
301	=cut	472	=cut
302		473
303	sub coro(&) {	474	sub async_ext(&) {
304	my $cb = shift;	475	my $cb = shift;
305		476
306	my $coro; $coro = async {	477	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		478
313	$coro->on_destroy (sub {	479	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	480	delete $EXT_CORO{$coro+0};
315	});	481	});
316	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
317		483
318	$coro	484	$coro
319	}	485	}
320		486
321	sub write_runtime {	487	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		488
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
325	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
326		493
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		495
331	aio_fsync $fh	496	sub fork_call(&@) {
332	and return;	497	my ($cb, @args) = @_;
333		498
334	close $fh	499	# we seemingly have to make a local copy of the whole thing,
335	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
336		502
337	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
338	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
339		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
340	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	647	}
342		648
343	=back	649	=back
344		650
345	=cut	651	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		652
467	#############################################################################	653	#############################################################################
468		654
469	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
470		656
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
474		660
475	In the following description, CLASS can be any of C<global>, C<object>	661	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	663	Crossfire TRT).
478		664
479	=over 4	665	=over 4
480		666
481	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
482		668
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	783	our @CB_MAP = ();
598		784
599	my %attachment;	785	my %attachment;
600		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
601	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
603		795
604	use sort 'stable';	796	use sort 'stable';
605		797
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
640		832
641	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		837
646	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	839	my $pkg = shift @arg;
648		840
649	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
679	}	871	}
680		872
681	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
682	} else {	874	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	876	}
685		877
686	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
687	}	879	}
688		880
…		…
690	if (ref $_[0]) {	882	if (ref $_[0]) {
691	_object_attach @_;	883	_object_attach @_;
692	} else {	884	} else {
693	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
694	}	886	}
		887	_recalc_want;
695	};	888	};
696		889
697	# all those should be optimised	890	# all those should be optimised
698	sub cf::attachable::detach {	891	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
703	reattach ($obj);	896	reattach ($obj);
704	} else {	897	} else {
705	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
706	}	899	}
		900	_recalc_want;
707	};	901	};
708		902
709	sub cf::attachable::attached {	903	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
711		905
…		…
726	";	920	";
727	die if $@;	921	die if $@;
728	}	922	}
729		923
730	our $override;	924	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		926
733	sub override {	927	sub override {
734	$override = 1;	928	$override = 1;
735	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
736	}	930	}
737		931
738	sub do_invoke {	932	sub do_invoke {
739	my $event = shift;	933	my $event = shift;
740	my $callbacks = shift;	934	my $callbacks = shift;
741		935
742	@invoke_results = ();	936	@INVOKE_RESULTS = ();
743		937
744	local $override;	938	local $override;
745		939
746	for (@$callbacks) {	940	for (@$callbacks) {
747	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
764		958
765	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
766		960
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	962	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		964
771	=back	965	=back
772		966
773	=cut	967	=cut
774		968
775	#############################################################################	969	#############################################################################
776	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	return 1;#d#
		977
		978	#todo#d# kill yourself and do some recursive checking manually without storable
		979	sync_job {
		980	my $guard = Coro::Storable::guard;
		981	local $Storable::canonical = 1;
		982	my $fob1 = Storable::freeze $ob1;
		983	my $fob2 = Storable::freeze $ob2;
		984	$fob1 eq $fob2
		985	}
		986	}
777		987
778	sub reattach {	988	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	989	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	990	my ($obj) = @_;
		991
		992	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		993
782	my $registry = $obj->registry;	994	my $registry = $obj->registry;
783		995
784	@$registry = ();	996	@$registry = ();
785		997
…		…
826	sub object_freezer_save {	1038	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1039	my ($filename, $rdata, $objs) = @_;
828		1040
829	sync_job {	1041	sync_job {
830	if (length $$rdata) {	1042	if (length $$rdata) {
		1043	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1044	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1045	$decname, length $$rdata, scalar @$objs;
833		1046
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1049	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1051	close $fh;
839		1052
840	if (@$objs) {	1053	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1054	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1055	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1056	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1057	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1058	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1059	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1060	aio_rename "$filename.pst~", "$filename.pst";
848	}	1061	}
849	} else {	1062	} else {
850	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
…		…
856	}	1069	}
857	} else {	1070	} else {
858	aio_unlink $filename;	1071	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1072	aio_unlink "$filename.pst";
860	}	1073	}
861	}	1074	};
862	}	1075	}
863		1076
864	sub object_freezer_as_string {	1077	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1078	my ($rdata, $objs) = @_;
866		1079
…		…
878	or return;	1091	or return;
879		1092
880	unless (aio_stat "$filename.pst") {	1093	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1094	(aio_load "$filename.pst", $av) >= 0
882	or return;	1095	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };
884	}
885		1096
		1097	my $st = eval { Coro::Storable::thaw $av }
		1098	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1099	$av = $st->{objs};
		1100	}
		1101
		1102	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1103	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1104	$decname, length $data, scalar @{$av || []};
		1105
888	return ($data, $av);	1106	($data, $av)
889	}	1107	}
		1108
		1109	=head2 COMMAND CALLBACKS
		1110
		1111	=over 4
		1112
		1113	=cut
890		1114
891	#############################################################################	1115	#############################################################################
892	# command handling &c	1116	# command handling &c
893		1117
894	=item cf::register_command $name => \&callback($ob,$args);	1118	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1131	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1132	}
909		1133
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1134	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1135
912	Register a callbackf ro execution when the client sends an extcmd packet.	1136	Register a callback for execution when the client sends an (synchronous)
		1137	extcmd packet. Ext commands will be processed in the order they are
		1138	received by the server, like other user commands. The first argument is
		1139	the logged-in player. Ext commands can only be processed after a player
		1140	has logged in successfully.
913		1141
914	If the callback returns something, it is sent back as if reply was being	1142	If the callback returns something, it is sent back as if reply was being
915	called.	1143	called.
916		1144
		1145	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1146
		1147	Register a callback for execution when the client sends an (asynchronous)
		1148	exticmd packet. Exti commands are processed by the server as soon as they
		1149	are received, i.e. out of order w.r.t. other commands. The first argument
		1150	is a client socket. Exti commands can be received anytime, even before
		1151	log-in.
		1152
		1153	If the callback returns something, it is sent back as if reply was being
		1154	called.
		1155
917	=cut	1156	=cut
918		1157
919	sub register_extcmd {	1158	sub register_extcmd {
920	my ($name, $cb) = @_;	1159	my ($name, $cb) = @_;
921		1160
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1161	$EXTCMD{$name} = $cb;
		1162	}
		1163
		1164	sub register_exticmd {
		1165	my ($name, $cb) = @_;
		1166
		1167	$EXTICMD{$name} = $cb;
926	}	1168	}
927		1169
928	cf::player->attach (	1170	cf::player->attach (
929	on_command => sub {	1171	on_command => sub {
930	my ($pl, $name, $params) = @_;	1172	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1181	cf::override;
940	},	1182	},
941	on_extcmd => sub {	1183	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1184	my ($pl, $buf) = @_;
943		1185
944	my $msg = eval { from_json $buf };	1186	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1187
946	if (ref $msg) {	1188	if (ref $msg) {
		1189	my ($type, $reply, @payload) =
		1190	"ARRAY" eq ref $msg
		1191	? @$msg
		1192	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1193
		1194	my @reply;
		1195
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1196	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1197	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1198	}
		1199
		1200	$pl->ext_reply ($reply, @reply)
		1201	if $reply;
		1202
952	} else {	1203	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1204	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1205	}
955		1206
956	cf::override;	1207	cf::override;
957	},	1208	},
958	);	1209	);
959		1210
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1211	sub load_extensions {
		1212	cf::sync_job {
		1213	my %todo;
		1214
		1215	for my $path (<$LIBDIR/*.ext>) {
		1216	next unless -r $path;
		1217
		1218	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1219	my $base = $1;
		1220	my $pkg = $1;
		1221	$pkg =~ s/[^[:word:]]/_/g;
		1222	$pkg = "ext::$pkg";
		1223
		1224	open my $fh, "<:utf8", $path
		1225	or die "$path: $!";
		1226
		1227	my $source = do { local $/; <$fh> };
		1228
		1229	my %ext = (
		1230	path => $path,
		1231	base => $base,
		1232	pkg => $pkg,
		1233	);
		1234
		1235	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1236	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1237
		1238	$ext{source} =
		1239	"package $pkg; use strict; use utf8;\n"
		1240	. "#line 1 \"$path\"\n{\n"
		1241	. $source
		1242	. "\n};\n1";
		1243
		1244	$todo{$base} = \%ext;
		1245	}
		1246
		1247	my %done;
		1248	while (%todo) {
		1249	my $progress;
		1250
		1251	while (my ($k, $v) = each %todo) {
		1252	for (split /,\s*/, $v->{meta}{depends}) {
		1253	goto skip
		1254	unless exists $done{$_};
		1255	}
		1256
		1257	warn "... loading '$k' into '$v->{pkg}'\n";
		1258
		1259	unless (eval $v->{source}) {
		1260	my $msg = $@ ? "$v->{path}: $@\n"
		1261	: "$v->{base}: extension inactive.\n";
		1262
		1263	if (exists $v->{meta}{mandatory}) {
		1264	warn $msg;
		1265	warn "mandatory extension failed to load, exiting.\n";
		1266	exit 1;
		1267	}
		1268
		1269	warn $msg;
		1270	}
		1271
		1272	$done{$k} = delete $todo{$k};
		1273	push @EXTS, $v->{pkg};
		1274	$progress = 1;
		1275	}
		1276
		1277	skip:
		1278	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1279	unless $progress;
		1280	}
		1281	};
		1282	}
		1283
		1284	#############################################################################
		1285
		1286	=back
		1287
		1288	=head2 CORE EXTENSIONS
		1289
		1290	Functions and methods that extend core crossfire objects.
		1291
		1292	=cut
		1293
		1294	package cf::player;
		1295
		1296	use Coro::AIO;
		1297
		1298	=head3 cf::player
		1299
		1300	=over 4
		1301
		1302	=item cf::player::num_playing
		1303
		1304	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1305
		1306	=cut
		1307
		1308	sub num_playing {
		1309	scalar grep
		1310	$_->ob->map
		1311	&& !$_->hidden
		1312	&& !$_->ob->flag (cf::FLAG_WIZ),
		1313	cf::player::list
		1314	}
		1315
		1316	=item cf::player::find $login
		1317
		1318	Returns the given player object, loading it if necessary (might block).
		1319
		1320	=cut
		1321
		1322	sub playerdir($) {
		1323	"$PLAYERDIR/"
		1324	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1325	}
		1326
		1327	sub path($) {
		1328	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1329
		1330	(playerdir $login) . "/playerdata"
		1331	}
		1332
		1333	sub find_active($) {
		1334	$cf::PLAYER{$_[0]}
		1335	and $cf::PLAYER{$_[0]}->active
		1336	and $cf::PLAYER{$_[0]}
		1337	}
		1338
		1339	sub exists($) {
		1340	my ($login) = @_;
		1341
		1342	$cf::PLAYER{$login}
		1343	or cf::sync_job { !aio_stat path $login }
		1344	}
		1345
		1346	sub find($) {
		1347	return $cf::PLAYER{$_[0]} || do {
		1348	my $login = $_[0];
		1349
		1350	my $guard = cf::lock_acquire "user_find:$login";
		1351
		1352	$cf::PLAYER{$_[0]} || do {
		1353	# rename old playerfiles to new ones
		1354	#TODO: remove when no longer required
		1355	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1356	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1357	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1358	aio_unlink +(playerdir $login) . "/$login.pl";
		1359
		1360	my $f = new_from_file cf::object::thawer path $login
		1361	or return;
		1362
		1363	my $pl = cf::player::load_pl $f
		1364	or return;
		1365	local $cf::PLAYER_LOADING{$login} = $pl;
		1366	$f->resolve_delayed_derefs;
		1367	$cf::PLAYER{$login} = $pl
		1368	}
		1369	}
		1370	}
		1371
		1372	sub save($) {
		1373	my ($pl) = @_;
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	my $path = path $pl;
		1378	my $guard = cf::lock_acquire "user_save:$path";
		1379
		1380	return if $pl->{deny_save};
		1381
		1382	aio_mkdir playerdir $pl, 0770;
		1383	$pl->{last_save} = $cf::RUNTIME;
		1384
		1385	$pl->save_pl ($path);
		1386	cf::cede_to_tick;
		1387	}
		1388
		1389	sub new($) {
		1390	my ($login) = @_;
		1391
		1392	my $self = create;
		1393
		1394	$self->ob->name ($login);
		1395	$self->{deny_save} = 1;
		1396
		1397	$cf::PLAYER{$login} = $self;
		1398
		1399	$self
		1400	}
		1401
		1402	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1403
		1404	=cut
		1405
		1406	sub send_msg {
		1407	my $ns = shift->ns
		1408	or return;
		1409	$ns->send_msg (@_);
		1410	}
		1411
		1412	=item $pl->quit_character
		1413
		1414	Nukes the player without looking back. If logged in, the connection will
		1415	be destroyed. May block for a long time.
		1416
		1417	=cut
		1418
		1419	sub quit_character {
		1420	my ($pl) = @_;
		1421
		1422	my $name = $pl->ob->name;
		1423
		1424	$pl->{deny_save} = 1;
		1425	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1426
		1427	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1428	$pl->deactivate;
		1429	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1430	$pl->ns->destroy if $pl->ns;
		1431
		1432	my $path = playerdir $pl;
		1433	my $temp = "$path~$cf::RUNTIME~deleting~";
		1434	aio_rename $path, $temp;
		1435	delete $cf::PLAYER{$pl->ob->name};
		1436	$pl->destroy;
		1437
		1438	my $prefix = qr<^~\Q$name\E/>;
		1439
		1440	# nuke player maps
		1441	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1442
		1443	IO::AIO::aio_rmtree $temp;
		1444	}
		1445
		1446	=item $pl->kick
		1447
		1448	Kicks a player out of the game. This destroys the connection.
		1449
		1450	=cut
		1451
		1452	sub kick {
		1453	my ($pl, $kicker) = @_;
		1454
		1455	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1456	$pl->killer ("kicked");
		1457	$pl->ns->destroy;
		1458	}
		1459
		1460	=item cf::player::list_logins
		1461
		1462	Returns am arrayref of all valid playernames in the system, can take a
		1463	while and may block, so not sync_job-capable, ever.
		1464
		1465	=cut
		1466
		1467	sub list_logins {
		1468	my $dirs = aio_readdir $PLAYERDIR
		1469	or return [];
		1470
		1471	my @logins;
		1472
		1473	for my $login (@$dirs) {
		1474	my $path = path $login;
		1475
		1476	# a .pst is a dead give-away for a valid player
		1477	unless (-e "$path.pst") {
		1478	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1479	aio_read $fh, 0, 512, my $buf, 0 or next;
		1480	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1481	}
		1482
		1483	utf8::decode $login;
		1484	push @logins, $login;
		1485	}
		1486
		1487	\@logins
		1488	}
		1489
		1490	=item $player->maps
		1491
		1492	Returns an arrayref of map paths that are private for this
		1493	player. May block.
		1494
		1495	=cut
		1496
		1497	sub maps($) {
		1498	my ($pl) = @_;
		1499
		1500	$pl = ref $pl ? $pl->ob->name : $pl;
		1501
		1502	my $files = aio_readdir playerdir $pl
		1503	or return;
		1504
		1505	my @paths;
		1506
		1507	for (@$files) {
		1508	utf8::decode $_;
		1509	next if /\.(?:pl|pst)$/;
		1510	next unless /^$PATH_SEP/o;
		1511
		1512	push @paths, cf::map::normalise "~$pl/$_";
		1513	}
		1514
		1515	\@paths
		1516	}
		1517
		1518	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1519
		1520	Expand crossfire pod fragments into protocol xml.
		1521
		1522	=cut
		1523
		1524	sub expand_cfpod {
		1525	((my $self), (local $_)) = @_;
		1526
		1527	# escape & and <
		1528	s/&/&amp;/g;
		1529	s/(?<![BIUGHT])</&lt;/g;
		1530
		1531	# this is buggy, it needs to properly take care of nested <'s
		1532
		1533	1 while
		1534	# replace B<>, I<>, U<> etc.
		1535	s/B<([^\>]*)>/<b>$1<\/b>/
		1536	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1537	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1538	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1539	# replace G<male|female> tags
		1540	|| s{G<([^>|]*)\|([^>]*)>}{
		1541	$self->gender ? $2 : $1
		1542	}ge
		1543	# replace H<hint text>
		1544	|| s{H<([^\>]*)>}
		1545	{
		1546	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1547	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1548	"")
		1549	[$self->{hintmode}]
		1550	}ge;
		1551
		1552	# create single paragraphs (very hackish)
		1553	s/(?<=\S)\n(?=\w)/ /g;
		1554
		1555	# compress some whitespace
		1556	s/\s+\n/\n/g; # ws line-ends
		1557	s/\n\n+/\n/g; # double lines
		1558	s/^\n+//; # beginning lines
		1559	s/\n+$//; # ending lines
		1560
		1561	$_
		1562	}
		1563
		1564	sub hintmode {
		1565	$_[0]{hintmode} = $_[1] if @_ > 1;
		1566	$_[0]{hintmode}
		1567	}
		1568
		1569	=item $player->ext_reply ($msgid, @msg)
		1570
		1571	Sends an ext reply to the player.
		1572
		1573	=cut
		1574
		1575	sub ext_reply($$@) {
		1576	my ($self, $id, @msg) = @_;
		1577
		1578	$self->ns->ext_reply ($id, @msg)
		1579	}
		1580
		1581	=item $player->ext_msg ($type, @msg)
		1582
		1583	Sends an ext event to the client.
		1584
		1585	=cut
		1586
		1587	sub ext_msg($$@) {
		1588	my ($self, $type, @msg) = @_;
		1589
		1590	$self->ns->ext_msg ($type, @msg);
		1591	}
		1592
		1593	=head3 cf::region
		1594
		1595	=over 4
		1596
		1597	=cut
		1598
		1599	package cf::region;
		1600
		1601	=item cf::region::find_by_path $path
		1602
		1603	Tries to decuce the likely region for a map knowing only its path.
		1604
		1605	=cut
		1606
		1607	sub find_by_path($) {
967	my ($path) = @_;	1608	my ($path) = @_;
968		1609
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1610	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1611
975	warn "loading '$path' into '$pkg'\n";	1612	for my $region (list) {
976		1613	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1614	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1615	if $region->specificity > $specificity;
979		1616	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1617	}
1009		1618
1010	# remove commands	1619	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1620	}
1116		1621
1117	=back	1622	=back
1118
1119		1623
1120	=head3 cf::map	1624	=head3 cf::map
1121		1625
1122	=over 4	1626	=over 4
1123		1627
…		…
1126	package cf::map;	1630	package cf::map;
1127		1631
1128	use Fcntl;	1632	use Fcntl;
1129	use Coro::AIO;	1633	use Coro::AIO;
1130		1634
		1635	use overload
		1636	'""' => \&as_string,
		1637	fallback => 1;
		1638
1131	our $MAX_RESET = 7200;	1639	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1640	our $DEFAULT_RESET = 3000;
1133		1641
1134	sub generate_random_map {	1642	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1643	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1644	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1645	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1646	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1647	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1648	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1649	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1650	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1651	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1652	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1653	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1654	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1655	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1656	(cf::region::find $rmp->{region}), $rmp->{custom}
		1657	)
		1658	}
		1659
		1660	=item cf::map->register ($regex, $prio)
		1661
		1662	Register a handler for the map path matching the given regex at the
		1663	givne priority (higher is better, built-in handlers have priority 0, the
		1664	default).
		1665
		1666	=cut
		1667
		1668	sub register {
		1669	my (undef, $regex, $prio) = @_;
		1670	my $pkg = caller;
		1671
		1672	no strict;
		1673	push @{"$pkg\::ISA"}, __PACKAGE__;
		1674
		1675	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1676	}
		1677
		1678	# also paths starting with '/'
		1679	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1680
		1681	sub thawer_merge {
		1682	my ($self, $merge) = @_;
		1683
		1684	# we have to keep some variables in memory intact
		1685	local $self->{path};
		1686	local $self->{load_path};
		1687
		1688	$self->SUPER::thawer_merge ($merge);
		1689	}
		1690
		1691	sub normalise {
		1692	my ($path, $base) = @_;
		1693
		1694	$path = "$path"; # make sure its a string
		1695
		1696	$path =~ s/\.map$//;
		1697
		1698	# map plan:
		1699	#
		1700	# /! non-realised random map exit (special hack!)
		1701	# {... are special paths that are not being touched
		1702	# ?xxx/... are special absolute paths
		1703	# ?random/... random maps
		1704	# /... normal maps
		1705	# ~user/... per-player map of a specific user
		1706
		1707	$path =~ s/$PATH_SEP/\//go;
		1708
		1709	# treat it as relative path if it starts with
		1710	# something that looks reasonable
		1711	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1712	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1713
		1714	$base =~ s{[^/]+/?$}{};
		1715	$path = "$base/$path";
		1716	}
		1717
		1718	for ($path) {
		1719	redo if s{//}{/};
		1720	redo if s{/\.?/}{/};
		1721	redo if s{/[^/]+/\.\./}{/};
		1722	}
		1723
		1724	$path
		1725	}
		1726
		1727	sub new_from_path {
		1728	my (undef, $path, $base) = @_;
		1729
		1730	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1731
		1732	$path = normalise $path, $base;
		1733
		1734	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1735	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1736	my $self = bless cf::map::new, $pkg;
		1737	$self->{path} = $path; $self->path ($path);
		1738	$self->init; # pass $1 etc.
		1739	return $self;
		1740	}
		1741	}
		1742
		1743	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1744	()
		1745	}
		1746
		1747	sub init {
		1748	my ($self) = @_;
		1749
		1750	$self
		1751	}
		1752
		1753	sub as_string {
		1754	my ($self) = @_;
		1755
		1756	"$self->{path}"
		1757	}
		1758
		1759	# the displayed name, this is a one way mapping
		1760	sub visible_name {
		1761	&as_string
		1762	}
		1763
		1764	# the original (read-only) location
		1765	sub load_path {
		1766	my ($self) = @_;
		1767
		1768	"$MAPDIR/$self->{path}.map"
		1769	}
		1770
		1771	# the temporary/swap location
		1772	sub save_path {
		1773	my ($self) = @_;
		1774
		1775	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1776	"$TMPDIR/$path.map"
		1777	}
		1778
		1779	# the unique path, undef == no special unique path
		1780	sub uniq_path {
		1781	my ($self) = @_;
		1782
		1783	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1784	"$UNIQUEDIR/$path"
1151	}	1785	}
1152		1786
1153	# and all this just because we cannot iterate over	1787	# and all this just because we cannot iterate over
1154	# all maps in C++...	1788	# all maps in C++...
1155	sub change_all_map_light {	1789	sub change_all_map_light {
…		…
1157		1791
1158	$_->change_map_light ($change)	1792	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1793	for grep $_->outdoor, values %cf::MAP;
1160	}	1794	}
1161		1795
		1796	sub decay_objects {
		1797	my ($self) = @_;
		1798
		1799	return if $self->{deny_reset};
		1800
		1801	$self->do_decay_objects;
		1802	}
		1803
		1804	sub unlink_save {
		1805	my ($self) = @_;
		1806
		1807	utf8::encode (my $save = $self->save_path);
		1808	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1809	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1810	}
		1811
1162	sub try_load_header($) {	1812	sub load_header_from($) {
1163	my ($path) = @_;	1813	my ($self, $path) = @_;
1164		1814
1165	utf8::encode $path;	1815	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1816	my $f = new_from_file cf::object::thawer $path
1167	or return;	1817	or return;
1168		1818
1169	my $map = cf::map::new	1819	$self->_load_header ($f)
1170	or return;	1820	or return;
1171		1821
1172	$map->load_header ($path)	1822	local $MAP_LOADING{$self->{path}} = $self;
		1823	$f->resolve_delayed_derefs;
		1824
		1825	$self->{load_path} = $path;
		1826
		1827	1
		1828	}
		1829
		1830	sub load_header_orig {
		1831	my ($self) = @_;
		1832
		1833	$self->load_header_from ($self->load_path)
		1834	}
		1835
		1836	sub load_header_temp {
		1837	my ($self) = @_;
		1838
		1839	$self->load_header_from ($self->save_path)
		1840	}
		1841
		1842	sub prepare_temp {
		1843	my ($self) = @_;
		1844
		1845	$self->last_access ((delete $self->{last_access})
		1846	|| $cf::RUNTIME); #d#
		1847	# safety
		1848	$self->{instantiate_time} = $cf::RUNTIME
		1849	if $self->{instantiate_time} > $cf::RUNTIME;
		1850	}
		1851
		1852	sub prepare_orig {
		1853	my ($self) = @_;
		1854
		1855	$self->{load_original} = 1;
		1856	$self->{instantiate_time} = $cf::RUNTIME;
		1857	$self->last_access ($cf::RUNTIME);
		1858	$self->instantiate;
		1859	}
		1860
		1861	sub load_header {
		1862	my ($self) = @_;
		1863
		1864	if ($self->load_header_temp) {
		1865	$self->prepare_temp;
		1866	} else {
		1867	$self->load_header_orig
1173	or return;	1868	or return;
		1869	$self->prepare_orig;
		1870	}
1174		1871
1175	$map->{load_path} = $path;	1872	$self->{deny_reset} = 1
		1873	if $self->no_reset;
1176		1874
1177	$map	1875	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1876	unless $self->default_region;
1179		1877
		1878	1
		1879	}
		1880
		1881	sub find;
1180	sub find_map {	1882	sub find {
1181	my ($path, $origin) = @_;	1883	my ($path, $origin) = @_;
1182		1884
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1885	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1886
		1887	cf::lock_wait "map_data:$path";#d#remove
1188	cf::lock_wait "map_find:$key";	1888	cf::lock_wait "map_find:$path";
1189		1889
1190	$cf::MAP{$key} || do {	1890	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1891	my $guard1 = cf::lock_acquire "map_find:$path";
		1892	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1192		1893
1193	# do it the slow way	1894	my $map = new_from_path cf::map $path
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1895	or return;
1208		1896
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1897	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1898
1222	if ($map->should_reset) {	1899	$map->load_header
		1900	or return;
		1901
		1902	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1903	# doing this can freeze the server in a sync job, obviously
		1904	#$cf::WAIT_FOR_TICK->wait;
		1905	undef $guard1;
		1906	undef $guard2;
1223	$map->reset;	1907	$map->reset;
1224	undef $guard;	1908	return find $path;
1225	$map = cf::map::find_map ($path)
1226	or return;
1227	}	1909	}
1228		1910
1229	$cf::MAP{$key} = $map	1911	$cf::MAP{$path} = $map
1230	}	1912	}
1231	}	1913	}
		1914
		1915	sub pre_load { }
		1916	sub post_load { }
1232		1917
1233	sub load {	1918	sub load {
1234	my ($self) = @_;	1919	my ($self) = @_;
1235		1920
		1921	local $self->{deny_reset} = 1; # loading can take a long time
		1922
1236	my $path = $self->{path};	1923	my $path = $self->{path};
		1924
		1925	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1926	my $guard = cf::lock_acquire "map_data:$path";
1238		1927
		1928	return unless $self->valid;
1239	return if $self->in_memory != cf::MAP_SWAPPED;	1929	return unless $self->in_memory == cf::MAP_SWAPPED;
1240		1930
1241	$self->in_memory (cf::MAP_LOADING);	1931	$self->in_memory (cf::MAP_LOADING);
1242		1932
1243	$self->alloc;	1933	$self->alloc;
1244	$self->load_objects ($self->{load_path}, 1)	1934
		1935	$self->pre_load;
		1936	cf::cede_to_tick;
		1937
		1938	my $f = new_from_file cf::object::thawer $self->{load_path};
		1939	$f->skip_block;
		1940	$self->_load_objects ($f)
1245	or return;	1941	or return;
1246		1942
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1943	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248	if delete $self->{load_original};	1944	if delete $self->{load_original};
1249		1945
1250	if (my $uniq = $path->uniq_path) {	1946	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	1947	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	1948	unless (aio_stat $uniq) {
		1949	if (my $f = new_from_file cf::object::thawer $uniq) {
1253	$self->clear_unique_items;	1950	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	1951	$self->_load_objects ($f);
		1952	$f->resolve_delayed_derefs;
		1953	}
1255	}	1954	}
1256	}	1955	}
1257		1956
		1957	$f->resolve_delayed_derefs;
		1958
		1959	cf::cede_to_tick;
1258	# now do the right thing for maps	1960	# now do the right thing for maps
1259	$self->link_multipart_objects;	1961	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1962	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1963	unless $self->difficulty;
		1964	cf::cede_to_tick;
		1965
		1966	unless ($self->{deny_activate}) {
		1967	$self->decay_objects;
		1968	$self->fix_auto_apply;
		1969	$self->update_buttons;
		1970	cf::cede_to_tick;
		1971	$self->set_darkness_map;
		1972	cf::cede_to_tick;
1271	$self->activate;	1973	$self->activate;
1272	}	1974	}
1273		1975
		1976	$self->{last_save} = $cf::RUNTIME;
		1977	$self->last_access ($cf::RUNTIME);
		1978
1274	$self->in_memory (cf::MAP_IN_MEMORY);	1979	$self->in_memory (cf::MAP_IN_MEMORY);
1275	}	1980	}
1276		1981
1277	sub load_map_sync {	1982	$self->post_load;
		1983	}
		1984
		1985	sub customise_for {
		1986	my ($self, $ob) = @_;
		1987
		1988	return find "~" . $ob->name . "/" . $self->{path}
		1989	if $self->per_player;
		1990
		1991	# return find "?party/" . $ob->name . "/" . $self->{path}
		1992	# if $self->per_party;
		1993
		1994	$self
		1995	}
		1996
		1997	# find and load all maps in the 3x3 area around a map
		1998	sub load_neighbours {
		1999	my ($map) = @_;
		2000
		2001	my @neigh; # diagonal neighbours
		2002
		2003	for (0 .. 3) {
		2004	my $neigh = $map->tile_path ($_)
		2005	or next;
		2006	$neigh = find $neigh, $map
		2007	or next;
		2008	$neigh->load;
		2009
		2010	push @neigh,
		2011	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2012	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2013	}
		2014
		2015	for (grep defined $_->[0], @neigh) {
		2016	my ($path, $origin) = @$_;
		2017	my $neigh = find $path, $origin
		2018	or next;
		2019	$neigh->load;
		2020	}
		2021	}
		2022
		2023	sub find_sync {
1278	my ($path, $origin) = @_;	2024	my ($path, $origin) = @_;
1279		2025
1280	#warn "load_map_sync<$path, $origin>\n";#d#	2026	cf::sync_job { find $path, $origin }
		2027	}
1281		2028
1282	cf::sync_job {	2029	sub do_load_sync {
1283	my $map = cf::map::find_map $path, $origin	2030	my ($map) = @_;
1284	or return;	2031
1285	$map->load;	2032	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1286	$map	2033	if $Coro::current == $Coro::main;
		2034
		2035	cf::sync_job { $map->load };
		2036	}
		2037
		2038	our %MAP_PREFETCH;
		2039	our $MAP_PREFETCHER = undef;
		2040
		2041	sub find_async {
		2042	my ($path, $origin, $load) = @_;
		2043
		2044	$path = normalise $path, $origin && $origin->{path};
		2045
		2046	if (my $map = $cf::MAP{$path}) {
		2047	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2048	}
		2049
		2050	$MAP_PREFETCH{$path} |= $load;
		2051
		2052	$MAP_PREFETCHER ||= cf::async {
		2053	$Coro::current->{desc} = "map prefetcher";
		2054
		2055	while (%MAP_PREFETCH) {
		2056	while (my ($k, $v) = each %MAP_PREFETCH) {
		2057	if (my $map = find $k) {
		2058	$map->load if $v;
		2059	}
		2060
		2061	delete $MAP_PREFETCH{$k};
		2062	}
		2063	}
		2064	undef $MAP_PREFETCHER;
1287	}	2065	};
		2066	$MAP_PREFETCHER->prio (6);
		2067
		2068	()
1288	}	2069	}
1289		2070
1290	sub save {	2071	sub save {
1291	my ($self) = @_;	2072	my ($self) = @_;
1292		2073
		2074	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2075
1293	$self->{last_save} = $cf::RUNTIME;	2076	$self->{last_save} = $cf::RUNTIME;
1294		2077
1295	return unless $self->dirty;	2078	return unless $self->dirty;
1296		2079
1297	my $save = $self->{path}->save_path; utf8::encode $save;	2080	my $save = $self->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2081	my $uniq = $self->uniq_path; utf8::encode $uniq;
1299		2082
1300	$self->{load_path} = $save;	2083	$self->{load_path} = $save;
1301		2084
1302	return if $self->{deny_save};	2085	return if $self->{deny_save};
1303		2086
		2087	local $self->{last_access} = $self->last_access;#d#
		2088
		2089	cf::async {
		2090	$Coro::current->{desc} = "map player save";
		2091	$_->contr->save for $self->players;
		2092	};
		2093
1304	if ($uniq) {	2094	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2095	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);	2096	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {	2097	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2098	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}	2099	}
1310	}	2100	}
1311		2101
1312	sub swap_out {	2102	sub swap_out {
1313	my ($self) = @_;	2103	my ($self) = @_;
		2104
		2105	# save first because save cedes
		2106	$self->save;
		2107
		2108	my $lock = cf::lock_acquire "map_data:$self->{path}";
1314		2109
1315	return if $self->players;	2110	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;	2111	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};	2112	return if $self->{deny_save};
1318		2113
		2114	$self->in_memory (cf::MAP_SWAPPED);
		2115
1319	$self->save;	2116	$self->deactivate;
		2117	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2118	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2119	}
1323		2120
1324	sub reset_at {	2121	sub reset_at {
1325	my ($self) = @_;	2122	my ($self) = @_;
1326		2123
1327	# TODO: safety, remove and allow resettable per-player maps	2124	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2125	return 1e99 if $self->{deny_reset};
1330		2126
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2127	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2128	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2129
…		…
1338	my ($self) = @_;	2134	my ($self) = @_;
1339		2135
1340	$self->reset_at <= $cf::RUNTIME	2136	$self->reset_at <= $cf::RUNTIME
1341	}	2137	}
1342		2138
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2139	sub reset {
1365	my ($self) = @_;	2140	my ($self) = @_;
1366		2141
		2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2143
1367	return if $self->players;	2144	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2145
1370	warn "resetting map ", $self->path;#d#	2146	warn "resetting map ", $self->path;
		2147
		2148	$self->in_memory (cf::MAP_SWAPPED);
		2149
		2150	# need to save uniques path
		2151	unless ($self->{deny_save}) {
		2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2153
		2154	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2155	if $uniq;
		2156	}
1371		2157
1372	delete $cf::MAP{$self->path};	2158	delete $cf::MAP{$self->path};
1373		2159
		2160	$self->deactivate;
1374	$_->clear_links_to ($self) for values %cf::MAP;	2161	$_->clear_links_to ($self) for values %cf::MAP;
		2162	$self->clear;
1375		2163
1376	$self->unlink_save;	2164	$self->unlink_save;
1377	$self->destroy;	2165	$self->destroy;
1378	}	2166	}
1379		2167
1380	my $nuke_counter = "aaaa";	2168	my $nuke_counter = "aaaa";
1381		2169
1382	sub nuke {	2170	sub nuke {
1383	my ($self) = @_;	2171	my ($self) = @_;
1384		2172
		2173	{
		2174	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2175
		2176	delete $cf::MAP{$self->path};
		2177
		2178	$self->unlink_save;
		2179
		2180	bless $self, "cf::map";
		2181	delete $self->{deny_reset};
1385	$self->{deny_save} = 1;	2182	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2183	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2184	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2185
		2186	$cf::MAP{$self->path} = $self;
		2187	}
		2188
1388	$self->reset; # polite request, might not happen	2189	$self->reset; # polite request, might not happen
1389	}	2190	}
1390		2191
1391	sub customise_for {	2192	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2193
1394	if ($map->per_player) {	2194	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2195	maps. May block.
		2196
		2197	=cut
		2198
		2199	sub tmp_maps() {
1396	}	2200	[
1397		2201	map {
1398	$map	2202	utf8::decode $_;
		2203	/\.map$/
		2204	? normalise $_
		2205	: ()
		2206	} @{ aio_readdir $TMPDIR or [] }
		2207	]
1399	}	2208	}
1400		2209
1401	sub emergency_save {	2210	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2211
1404	warn "enter emergency map save\n";	2212	Returns an arrayref with all map paths of currently instantiated and saved
		2213	random maps. May block.
1405		2214
1406	cf::sync_job {	2215	=cut
1407	warn "begin emergency map save\n";
1408	$_->save for values %cf::MAP;
1409	};
1410		2216
1411	warn "end emergency map save\n";	2217	sub random_maps() {
		2218	[
		2219	map {
		2220	utf8::decode $_;
		2221	/\.map$/
		2222	? normalise "?random/$_"
		2223	: ()
		2224	} @{ aio_readdir $RANDOMDIR or [] }
		2225	]
		2226	}
		2227
		2228	=item cf::map::unique_maps
		2229
		2230	Returns an arrayref of paths of all shared maps that have
		2231	instantiated unique items. May block.
		2232
		2233	=cut
		2234
		2235	sub unique_maps() {
		2236	[
		2237	map {
		2238	utf8::decode $_;
		2239	/\.map$/
		2240	? normalise $_
		2241	: ()
		2242	} @{ aio_readdir $UNIQUEDIR or [] }
		2243	]
1412	}	2244	}
1413		2245
1414	package cf;	2246	package cf;
1415		2247
1416	=back	2248	=back
1417		2249
		2250	=head3 cf::object
		2251
		2252	=cut
		2253
		2254	package cf::object;
		2255
		2256	=over 4
		2257
		2258	=item $ob->inv_recursive
		2259
		2260	Returns the inventory of the object _and_ their inventories, recursively.
		2261
		2262	=cut
		2263
		2264	sub inv_recursive_;
		2265	sub inv_recursive_ {
		2266	map { $_, inv_recursive_ $_->inv } @_
		2267	}
		2268
		2269	sub inv_recursive {
		2270	inv_recursive_ inv $_[0]
		2271	}
		2272
		2273	=item $ref = $ob->ref
		2274
		2275	creates and returns a persistent reference to an objetc that can be stored as a string.
		2276
		2277	=item $ob = cf::object::deref ($refstring)
		2278
		2279	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2280	even if the object actually exists. May block.
		2281
		2282	=cut
		2283
		2284	sub deref {
		2285	my ($ref) = @_;
		2286
		2287	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2288	my ($uuid, $name) = ($1, $2);
		2289	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2290	or return;
		2291	$pl->ob->uuid eq $uuid
		2292	or return;
		2293
		2294	$pl->ob
		2295	} else {
		2296	warn "$ref: cannot resolve object reference\n";
		2297	undef
		2298	}
		2299	}
		2300
		2301	package cf;
		2302
		2303	=back
1418		2304
1419	=head3 cf::object::player	2305	=head3 cf::object::player
1420		2306
1421	=over 4	2307	=over 4
1422		2308
…		…
1436		2322
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2323	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2324
1439	if ($self->{record_replies}) {	2325	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2326	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2327
1441	} else {	2328	} else {
		2329	my $pl = $self->contr;
		2330
		2331	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2332	my $dialog = $pl->{npc_dialog};
		2333	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2334
		2335	} else {
1442	$msg = $npc->name . " says: $msg" if $npc;	2336	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2337	$self->message ($msg, $flags);
		2338	}
1444	}	2339	}
		2340	}
		2341
		2342	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2343
		2344	=cut
		2345
		2346	sub cf::object::send_msg {
		2347	my $pl = shift->contr
		2348	or return;
		2349	$pl->send_msg (@_);
1445	}	2350	}
1446		2351
1447	=item $player_object->may ("access")	2352	=item $player_object->may ("access")
1448		2353
1449	Returns wether the given player is authorized to access resource "access"	2354	Returns wether the given player is authorized to access resource "access"
…		…
1462		2367
1463	=item $player_object->enter_link	2368	=item $player_object->enter_link
1464		2369
1465	Freezes the player and moves him/her to a special map (C<{link}>).	2370	Freezes the player and moves him/her to a special map (C<{link}>).
1466		2371
1467	The player should be reaosnably safe there for short amounts of time. You	2372	The player should be reasonably safe there for short amounts of time. You
1468	I<MUST> call C<leave_link> as soon as possible, though.	2373	I<MUST> call C<leave_link> as soon as possible, though.
1469		2374
		2375	Will never block.
		2376
1470	=item $player_object->leave_link ($map, $x, $y)	2377	=item $player_object->leave_link ($map, $x, $y)
1471		2378
1472	Moves the player out of the specila link map onto the given map. If the	2379	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2380	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2381	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2382	fails, to the emergency map position.
1476		2383
1477	Might block.	2384	Might block.
1478		2385
1479	=cut	2386	=cut
		2387
		2388	sub link_map {
		2389	unless ($LINK_MAP) {
		2390	$LINK_MAP = cf::map::find "{link}"
		2391	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2392	$LINK_MAP->load;
		2393	}
		2394
		2395	$LINK_MAP
		2396	}
1480		2397
1481	sub cf::object::player::enter_link {	2398	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2399	my ($self) = @_;
1483		2400
1484	$self->deactivate_recursive;	2401	$self->deactivate_recursive;
1485		2402
1486	return if $self->map == $LINK_MAP;	2403	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2404
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2405	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2406	if $self->map && $self->map->{path} ne "{link}";
1490		2407
1491	$self->enter_map ($LINK_MAP, 20, 20);	2408	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1492	}	2409	}
1493		2410
1494	sub cf::object::player::leave_link {	2411	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2412	my ($self, $map, $x, $y) = @_;
		2413
		2414	return unless $self->contr->active;
1496		2415
1497	my $link_pos = delete $self->{_link_pos};	2416	my $link_pos = delete $self->{_link_pos};
1498		2417
1499	unless ($map) {	2418	unless ($map) {
1500	# restore original map position	2419	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2420	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2421	$map = cf::map::find $map;
1503		2422
1504	unless ($map) {	2423	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2424	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2425	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2426	or die "FATAL: cannot load emergency map\n";
1508	}	2427	}
1509	}	2428	}
1510		2429
1511	($x, $y) = (-1, -1)	2430	($x, $y) = (-1, -1)
…		…
1514	# use -1 or undef as default coordinates, not 0, 0	2433	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2434	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2435	if $x <=0 && $y <= 0;
1517		2436
1518	$map->load;	2437	$map->load;
		2438	$map->load_neighbours;
1519		2439
		2440	return unless $self->contr->active;
1520	$self->activate_recursive;	2441	$self->activate_recursive;
		2442
		2443	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521	$self->enter_map ($map, $x, $y);	2444	$self->enter_map ($map, $x, $y);
1522	}	2445	}
1523		2446
1524	cf::player->attach (	2447	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1525	on_logout => sub {
1526	my ($pl) = @_;
1527		2448
1528	# abort map switching before logout	2449	Moves the player to the given map-path and coordinates by first freezing
1529	if ($pl->ob->{_link_pos}) {	2450	her, loading and preparing them map, calling the provided $check callback
1530	cf::sync_job {	2451	that has to return the map if sucecssful, and then unfreezes the player on
1531	$pl->ob->leave_link	2452	the new (success) or old (failed) map position. In either case, $done will
1532	};	2453	be called at the end of this process.
1533	}
1534	},
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2454
1538	# try to abort aborted map switching on player login :)
1539	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551
1552	=item $player_object->goto_map ($path, $x, $y)
1553
1554	=cut	2455	=cut
1555		2456
		2457	our $GOTOGEN;
		2458
1556	sub cf::object::player::goto_map {	2459	sub cf::object::player::goto {
1557	my ($self, $path, $x, $y) = @_;	2460	my ($self, $path, $x, $y, $check, $done) = @_;
		2461
		2462	# do generation counting so two concurrent goto's will be executed in-order
		2463	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1558		2464
1559	$self->enter_link;	2465	$self->enter_link;
1560		2466
1561	(Coro::async {	2467	(async {
1562	$path = new cf::path $path;	2468	$Coro::current->{desc} = "player::goto $path $x $y";
1563		2469
1564	my $map = cf::map::find_map $path->as_string;	2470	# *tag paths override both path and x|y
		2471	if ($path =~ /^\*(.*)$/) {
		2472	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2473	my $ob = $obs[rand @obs];
		2474
		2475	# see if we actually can go there
		2476	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2477	$ob = $obs[rand @obs];
		2478	} else {
		2479	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2480	}
		2481	# else put us there anyways for now #d#
		2482
		2483	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2484	} else {
		2485	($path, $x, $y) = (undef, undef, undef);
		2486	}
		2487	}
		2488
		2489	my $map = eval {
		2490	my $map = defined $path ? cf::map::find $path : undef;
		2491
		2492	if ($map) {
1565	$map = $map->customise_for ($self) if $map;	2493	$map = $map->customise_for ($self);
1566		2494	$map = $check->($map) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2495	} else {
1568	# if $map;
1569
1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2496	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	}
1571		2498
		2499	$map
		2500	};
		2501
		2502	if ($@) {
		2503	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2504	LOG llevError | logBacktrace, Carp::longmess $@;
		2505	}
		2506
		2507	if ($gen == $self->{_goto_generation}) {
		2508	delete $self->{_goto_generation};
1572	$self->leave_link ($map, $x, $y);	2509	$self->leave_link ($map, $x, $y);
		2510	}
		2511
		2512	$done->() if $done;
1573	})->prio (1);	2513	})->prio (1);
1574	}	2514	}
1575		2515
1576	=item $player_object->enter_exit ($exit_object)	2516	=item $player_object->enter_exit ($exit_object)
1577		2517
…		…
1579		2519
1580	sub parse_random_map_params {	2520	sub parse_random_map_params {
1581	my ($spec) = @_;	2521	my ($spec) = @_;
1582		2522
1583	my $rmp = { # defaults	2523	my $rmp = { # defaults
1584	xsize => 10,	2524	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2525	ysize => (cf::rndm 15, 40),
		2526	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2527	#layout => string,
1586	};	2528	};
1587		2529
1588	for (split /\n/, $spec) {	2530	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2531	my ($k, $v) = split /\s+/, $_, 2;
1590		2532
…		…
1594	$rmp	2536	$rmp
1595	}	2537	}
1596		2538
1597	sub prepare_random_map {	2539	sub prepare_random_map {
1598	my ($exit) = @_;	2540	my ($exit) = @_;
		2541
		2542	my $guard = cf::lock_acquire "exit_prepare:$exit";
1599		2543
1600	# all this does is basically replace the /! path by	2544	# all this does is basically replace the /! path by
1601	# a new random map path (?random/...) with a seed	2545	# a new random map path (?random/...) with a seed
1602	# that depends on the exit object	2546	# that depends on the exit object
1603		2547
1604	my $rmp = parse_random_map_params $exit->msg;	2548	my $rmp = parse_random_map_params $exit->msg;
1605		2549
1606	if ($exit->map) {	2550	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2551	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2552	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2553	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2554	$rmp->{origin_y} = $exit->y;
1611	}	2555	}
1612		2556
1613	$rmp->{random_seed} ||= $exit->random_seed;	2557	$rmp->{random_seed} ||= $exit->random_seed;
1614		2558
1615	my $data = cf::to_json $rmp;	2559	my $data = cf::to_json $rmp;
1616	my $md5 = Digest::MD5::md5_hex $data;	2560	my $md5 = Digest::MD5::md5_hex $data;
		2561	my $meta = "$RANDOMDIR/$md5.meta";
1617		2562
1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2563	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619	aio_write $fh, 0, (length $data), $data, 0;	2564	aio_write $fh, 0, (length $data), $data, 0;
		2565	undef $fh;
		2566	aio_rename "$meta~", $meta;
1620		2567
1621	$exit->slaying ("?random/$md5");	2568	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2569	$exit->msg (undef);
1623	}	2570	}
1624	}	2571	}
…		…
1626	sub cf::object::player::enter_exit {	2573	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2574	my ($self, $exit) = @_;
1628		2575
1629	return unless $self->type == cf::PLAYER;	2576	return unless $self->type == cf::PLAYER;
1630		2577
		2578	if ($exit->slaying eq "/!") {
		2579	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2580	# the problem is that $exit might not survive long enough
		2581	# so it needs to be done right now, right here
		2582	cf::sync_job { prepare_random_map $exit };
		2583	}
		2584
		2585	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2586	my $hp = $exit->stats->hp;
		2587	my $sp = $exit->stats->sp;
		2588
1631	$self->enter_link;	2589	$self->enter_link;
1632		2590
		2591	# if exit is damned, update players death & WoR home-position
		2592	$self->contr->savebed ($slaying, $hp, $sp)
		2593	if $exit->flag (FLAG_DAMNED);
		2594
1633	(Coro::async {	2595	(async {
		2596	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2597
		2598	$self->deactivate_recursive; # just to be sure
1634	unless (eval {	2599	unless (eval {
1635		2600	$self->goto ($slaying, $hp, $sp);
1636	prepare_random_map $exit
1637	if $exit->slaying eq "/!";
1638
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641		2601
1642	1;	2602	1;
1643	}) {	2603	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2604	$self->message ("Something went wrong deep within the crossfire server. "
1645	. "I'll try to bring you back to the map you were before. "	2605	. "I'll try to bring you back to the map you were before. "
1646	. "Please report this to the dungeon master",	2606	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2607	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2608
1649	warn "ERROR in enter_exit: $@";	2609	warn "ERROR in enter_exit: $@";
1650	$self->leave_link;	2610	$self->leave_link;
1651	}	2611	}
1652	})->prio (1);	2612	})->prio (1);
…		…
1665		2625
1666	sub cf::client::send_drawinfo {	2626	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2627	my ($self, $text, $flags) = @_;
1668		2628
1669	utf8::encode $text;	2629	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2630	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2631	}
1672		2632
		2633	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2634
		2635	Send a drawinfo or msg packet to the client, formatting the msg for the
		2636	client if neccessary. C<$type> should be a string identifying the type of
		2637	the message, with C<log> being the default. If C<$color> is negative, suppress
		2638	the message unless the client supports the msg packet.
		2639
		2640	=cut
		2641
		2642	our %CHANNEL = (
		2643	"c/identify" => {
		2644	id => "infobox",
		2645	title => "Identify",
		2646	reply => undef,
		2647	tooltip => "Items recently identified",
		2648	},
		2649	"c/examine" => {
		2650	id => "infobox",
		2651	title => "Examine",
		2652	reply => undef,
		2653	tooltip => "Signs and other items you examined",
		2654	},
		2655	"c/lookat" => {
		2656	id => "infobox",
		2657	title => "Look",
		2658	reply => undef,
		2659	tooltip => "What you saw there",
		2660	},
		2661	);
		2662
		2663	sub cf::client::send_msg {
		2664	my ($self, $channel, $msg, $color, @extra) = @_;
		2665
		2666	$msg = $self->pl->expand_cfpod ($msg);
		2667
		2668	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2669
		2670	# check predefined channels, for the benefit of C
		2671	if ($CHANNEL{$channel}) {
		2672	$channel = $CHANNEL{$channel};
		2673
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676
		2677	$channel = $channel->{id};
		2678
		2679	} elsif (ref $channel) {
		2680	# send meta info to client, if not yet sent
		2681	unless (exists $self->{channel}{$channel->{id}}) {
		2682	$self->{channel}{$channel->{id}} = $channel;
		2683	$self->ext_msg (channel_info => $channel)
		2684	if $self->can_msg;
		2685	}
		2686
		2687	$channel = $channel->{id};
		2688	}
		2689
		2690	return unless @extra || length $msg;
		2691
		2692	if ($self->can_msg) {
		2693	# default colour, mask it out
		2694	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2695	if $color & cf::NDI_DEF;
		2696
		2697	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2698	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2699	} else {
		2700	if ($color >= 0) {
		2701	# replace some tags by gcfclient-compatible ones
		2702	for ($msg) {
		2703	1 while
		2704	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2705	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2706	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2707	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2708	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2709	}
		2710
		2711	$color &= cf::NDI_COLOR_MASK;
		2712
		2713	utf8::encode $msg;
		2714
		2715	if (0 && $msg =~ /\[/) {
		2716	# COMMAND/INFO
		2717	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2718	} else {
		2719	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2720	$self->send_packet ("drawinfo $color $msg")
		2721	}
		2722	}
		2723	}
		2724	}
		2725
		2726	=item $client->ext_msg ($type, @msg)
		2727
		2728	Sends an ext event to the client.
		2729
		2730	=cut
		2731
		2732	sub cf::client::ext_msg($$@) {
		2733	my ($self, $type, @msg) = @_;
		2734
		2735	if ($self->extcmd == 2) {
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2737	} elsif ($self->extcmd == 1) { # TODO: remove
		2738	push @msg, msgtype => "event_$type";
		2739	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2740	}
		2741	}
		2742
		2743	=item $client->ext_reply ($msgid, @msg)
		2744
		2745	Sends an ext reply to the client.
		2746
		2747	=cut
		2748
		2749	sub cf::client::ext_reply($$@) {
		2750	my ($self, $id, @msg) = @_;
		2751
		2752	if ($self->extcmd == 2) {
		2753	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2754	} elsif ($self->extcmd == 1) {
		2755	#TODO: version 1, remove
		2756	unshift @msg, msgtype => "reply", msgid => $id;
		2757	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2758	}
		2759	}
1673		2760
1674	=item $success = $client->query ($flags, "text", \&cb)	2761	=item $success = $client->query ($flags, "text", \&cb)
1675		2762
1676	Queues a query to the client, calling the given callback with	2763	Queues a query to the client, calling the given callback with
1677	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2764	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1678	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2765	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1679		2766
1680	Queries can fail, so check the return code. Or don't, as queries will become	2767	Queries can fail, so check the return code. Or don't, as queries will
1681	reliable at some point in the future.	2768	become reliable at some point in the future.
1682		2769
1683	=cut	2770	=cut
1684		2771
1685	sub cf::client::query {	2772	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	2773	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	2781	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2782	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		2783
1697	$self->send_packet ($self->{query_queue}[0][0])	2784	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	2785	if @{ $self->{query_queue} } == 1;
		2786
		2787	1
1699	}	2788	}
1700		2789
1701	cf::client->attach (	2790	cf::client->attach (
		2791	on_connect => sub {
		2792	my ($ns) = @_;
		2793
		2794	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2795	},
1702	on_reply => sub {	2796	on_reply => sub {
1703	my ($ns, $msg) = @_;	2797	my ($ns, $msg) = @_;
1704		2798
1705	# this weird shuffling is so that direct followup queries	2799	# this weird shuffling is so that direct followup queries
1706	# get handled first	2800	# get handled first
1707	my $queue = delete $ns->{query_queue};	2801	my $queue = delete $ns->{query_queue}
		2802	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		2803
1709	(shift @$queue)->[1]->($msg);	2804	(shift @$queue)->[1]->($msg);
		2805	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		2806
1711	push @{ $ns->{query_queue} }, @$queue;	2807	push @{ $ns->{query_queue} }, @$queue;
1712		2808
1713	if (@{ $ns->{query_queue} } == @$queue) {	2809	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	2810	if (@$queue) {
…		…
1716	} else {	2812	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2813	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	2814	}
1719	}	2815	}
1720	},	2816	},
		2817	on_exticmd => sub {
		2818	my ($ns, $buf) = @_;
		2819
		2820	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2821
		2822	if (ref $msg) {
		2823	my ($type, $reply, @payload) =
		2824	"ARRAY" eq ref $msg
		2825	? @$msg
		2826	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2827
		2828	my @reply;
		2829
		2830	if (my $cb = $EXTICMD{$type}) {
		2831	@reply = $cb->($ns, @payload);
		2832	}
		2833
		2834	$ns->ext_reply ($reply, @reply)
		2835	if $reply;
		2836
		2837	} else {
		2838	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2839	}
		2840
		2841	cf::override;
		2842	},
1721	);	2843	);
1722		2844
1723	=item $client->coro (\&cb)	2845	=item $client->async (\&cb)
1724		2846
1725	Create a new coroutine, running the specified callback. The coroutine will	2847	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	2848	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	2849	or loss of connection).
1728		2850
1729	=cut	2851	=cut
1730		2852
1731	sub cf::client::coro {	2853	sub cf::client::async {
1732	my ($self, $cb) = @_;	2854	my ($self, $cb) = @_;
1733		2855
1734	my $coro; $coro = async {	2856	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		2857
1741	$coro->on_destroy (sub {	2858	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	2859	delete $self->{_coro}{$coro+0};
1743	});	2860	});
1744		2861
…		…
1771	our $safe = new Safe "safe";	2888	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	2889	our $safe_hole = new Safe::Hole;
1773		2890
1774	$SIG{FPE} = 'IGNORE';	2891	$SIG{FPE} = 'IGNORE';
1775		2892
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2893	$safe->permit_only (Opcode::opset qw(
		2894	:base_core :base_mem :base_orig :base_math
		2895	grepstart grepwhile mapstart mapwhile
		2896	sort time
		2897	));
1777		2898
1778	# here we export the classes and methods available to script code	2899	# here we export the classes and methods available to script code
1779		2900
1780	=pod	2901	=pod
1781		2902
1782	The following fucntions and emthods are available within a safe environment:	2903	The following functions and methods are available within a safe environment:
1783		2904
1784	cf::object contr pay_amount pay_player map	2905	cf::object
		2906	contr pay_amount pay_player map x y force_find force_add destroy
		2907	insert remove name archname title slaying race decrease_ob_nr
		2908
1785	cf::object::player player	2909	cf::object::player
1786	cf::player peaceful	2910	player
1787	cf::map trigger	2911
		2912	cf::player
		2913	peaceful
		2914
		2915	cf::map
		2916	trigger
1788		2917
1789	=cut	2918	=cut
1790		2919
1791	for (	2920	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	2921	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2922	insert remove inv name archname title slaying race
		2923	decrease_ob_nr destroy)],
1793	["cf::object::player" => qw(player)],	2924	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	2925	["cf::player" => qw(peaceful)],
1795	["cf::map" => qw(trigger)],	2926	["cf::map" => qw(trigger)],
1796	) {	2927	) {
1797	no strict 'refs';	2928	no strict 'refs';
…		…
1868	=back	2999	=back
1869		3000
1870	=cut	3001	=cut
1871		3002
1872	#############################################################################	3003	#############################################################################
		3004	# the server's init and main functions
1873		3005
1874	=head2 EXTENSION DATABASE SUPPORT	3006	sub load_facedata($) {
		3007	my ($path) = @_;
1875		3008
1876	Crossfire maintains a very simple database for extension use. It can	3009	# HACK to clear player env face cache, we need some signal framework
1877	currently store anything that can be serialised using Storable, which	3010	# for this (global event?)
1878	excludes objects.	3011	%ext::player_env::MUSIC_FACE_CACHE = ();
1879		3012
1880	The parameter C<$family> should best start with the name of the extension	3013	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1881	using it, it should be unique.
1882		3014
1883	=over 4	3015	warn "loading facedata from $path\n";
1884		3016
1885	=item $hashref = cf::db_get $family	3017	my $facedata;
		3018	0 < aio_load $path, $facedata
		3019	or die "$path: $!";
1886		3020
1887	Return a hashref for use by the extension C<$family>, which can be	3021	$facedata = Coro::Storable::thaw $facedata;
1888	modified. After modifications, you have to call C<cf::db_dirty> or
1889	C<cf::db_sync>.
1890		3022
1891	=item $value = cf::db_get $family => $key	3023	$facedata->{version} == 2
		3024	or cf::cleanup "$path: version mismatch, cannot proceed.";
1892		3025
1893	Returns a single value from the database	3026	# patch in the exptable
1894		3027	$facedata->{resource}{"res/exp_table"} = {
1895	=item cf::db_put $family => $hashref	3028	type => FT_RSRC,
1896		3029	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}
1923
1924	my $pid;
1925
1926	sub db_save() {
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	3030	};
		3031	cf::cede_to_tick;
1946		3032
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	3033	{
		3034	my $faces = $facedata->{faceinfo};
1951		3035
1952	sub db_get($;$) {	3036	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	3037	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}	3038	cf::face::set_visibility $idx, $info->{visibility};
1955	: ($DB->{$_[0]} ||= { })	3039	cf::face::set_magicmap $idx, $info->{magicmap};
1956	}	3040	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3041	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1957		3042
1958	sub db_put($$;$) {	3043	cf::cede_to_tick;
1959	if (@_ >= 3) {
1960	$DB->{$_[0]}{$_[1]} = $_[2];
1961	} else {
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966
1967	cf::global->attach (
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	3044	}
1972	);
1973	}
1974		3045
1975	#############################################################################	3046	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	3047	next unless $info->{smooth};
		3048	my $idx = cf::face::find $face
		3049	or next;
		3050	if (my $smooth = cf::face::find $info->{smooth}) {
		3051	cf::face::set_smooth $idx, $smooth;
		3052	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3053	} else {
		3054	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3055	}
1977		3056
1978	sub cfg_load {	3057	cf::cede_to_tick;
		3058	}
		3059	}
		3060
		3061	{
		3062	my $anims = $facedata->{animinfo};
		3063
		3064	while (my ($anim, $info) = each %$anims) {
		3065	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3066	cf::cede_to_tick;
		3067	}
		3068
		3069	cf::anim::invalidate_all; # d'oh
		3070	}
		3071
		3072	{
		3073	# TODO: for gcfclient pleasure, we should give resources
		3074	# that gcfclient doesn't grok a >10000 face index.
		3075	my $res = $facedata->{resource};
		3076
		3077	my $soundconf = delete $res->{"res/sound.conf"};
		3078
		3079	while (my ($name, $info) = each %$res) {
		3080	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3081	my $data;
		3082
		3083	if ($info->{type} & 1) {
		3084	# prepend meta info
		3085
		3086	my $meta = $enc->encode ({
		3087	name => $name,
		3088	%{ $info->{meta} || {} },
		3089	});
		3090
		3091	$data = pack "(w/a*)*", $meta, $info->{data};
		3092	} else {
		3093	$data = $info->{data};
		3094	}
		3095
		3096	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3097	cf::face::set_type $idx, $info->{type};
		3098
		3099	cf::cede_to_tick;
		3100	}
		3101
		3102	if ($soundconf) {
		3103	$soundconf = $enc->decode (delete $soundconf->{data});
		3104
		3105	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3106	my $sound = $soundconf->{compat}[$_]
		3107	or next;
		3108
		3109	my $face = cf::face::find "sound/$sound->[1]";
		3110	cf::sound::set $sound->[0] => $face;
		3111	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3112	}
		3113
		3114	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3115	my $face = cf::face::find "sound/$v";
		3116	cf::sound::set $k => $face;
		3117	}
		3118	}
		3119	}
		3120
		3121	1
		3122	}
		3123
		3124	register_exticmd fx_want => sub {
		3125	my ($ns, $want) = @_;
		3126
		3127	while (my ($k, $v) = each %$want) {
		3128	$ns->fx_want ($k, $v);
		3129	}
		3130	};
		3131
		3132	sub reload_regions {
		3133	# HACK to clear player env face cache, we need some signal framework
		3134	# for this (global event?)
		3135	%ext::player_env::MUSIC_FACE_CACHE = ();
		3136
		3137	load_resource_file "$MAPDIR/regions"
		3138	or die "unable to load regions file\n";
		3139
		3140	for (cf::region::list) {
		3141	$_->{match} = qr/$_->{match}/
		3142	if exists $_->{match};
		3143	}
		3144	}
		3145
		3146	sub reload_facedata {
		3147	load_facedata "$DATADIR/facedata"
		3148	or die "unable to load facedata\n";
		3149	}
		3150
		3151	sub reload_archetypes {
		3152	load_resource_file "$DATADIR/archetypes"
		3153	or die "unable to load archetypes\n";
		3154	#d# NEED to laod twice to resolve forward references
		3155	# this really needs to be done in an extra post-pass
		3156	# (which needs to be synchronous, so solve it differently)
		3157	load_resource_file "$DATADIR/archetypes"
		3158	or die "unable to load archetypes\n";
		3159	}
		3160
		3161	sub reload_treasures {
		3162	load_resource_file "$DATADIR/treasures"
		3163	or die "unable to load treasurelists\n";
		3164	}
		3165
		3166	sub reload_resources {
		3167	warn "reloading resource files...\n";
		3168
		3169	reload_regions;
		3170	reload_facedata;
		3171	#reload_archetypes;#d#
		3172	reload_archetypes;
		3173	reload_treasures;
		3174
		3175	warn "finished reloading resource files\n";
		3176	}
		3177
		3178	sub init {
		3179	reload_resources;
		3180	}
		3181
		3182	sub reload_config {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	3183	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	3184	or return;
1981		3185
1982	local $/;	3186	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	3187	*CFG = YAML::Syck::Load <$fh>;
		3188
		3189	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3190
		3191	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3192	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3193
		3194	if (exists $CFG{mlockall}) {
		3195	eval {
		3196	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3197	and die "WARNING: m(un)lockall failed: $!\n";
		3198	};
		3199	warn $@ if $@;
		3200	}
1984	}	3201	}
1985		3202
1986	sub main {	3203	sub main {
1987	# we must not ever block the main coroutine	3204	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3205	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3206	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3207	(async {
		3208	$Coro::current->{desc} = "IDLE BUG HANDLER";
1991	Event::one_event;	3209	Event::one_event;
1992	})->();	3210	})->prio (Coro::PRIO_MAX);
1993	};	3211	};
1994		3212
1995	cfg_load;	3213	reload_config;
1996	db_load;	3214	db_init;
1997	load_extensions;	3215	load_extensions;
		3216
		3217	$TICK_WATCHER->start;
1998	Event::loop;	3218	Event::loop;
1999	}	3219	}
2000		3220
2001	#############################################################################	3221	#############################################################################
2002	# initialisation	3222	# initialisation and cleanup
2003		3223
		3224	# install some emergency cleanup handlers
		3225	BEGIN {
		3226	for my $signal (qw(INT HUP TERM)) {
		3227	Event->signal (
		3228	reentrant => 0,
		3229	data => WF_AUTOCANCEL,
		3230	signal => $signal,
		3231	prio => 0,
		3232	cb => sub {
		3233	cf::cleanup "SIG$signal";
		3234	},
		3235	);
		3236	}
		3237	}
		3238
		3239	sub write_runtime {
		3240	my $runtime = "$LOCALDIR/runtime";
		3241
		3242	# first touch the runtime file to show we are still running:
		3243	# the fsync below can take a very very long time.
		3244
		3245	IO::AIO::aio_utime $runtime, undef, undef;
		3246
		3247	my $guard = cf::lock_acquire "write_runtime";
		3248
		3249	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3250	or return;
		3251
		3252	my $value = $cf::RUNTIME + 90 + 10;
		3253	# 10 is the runtime save interval, for a monotonic clock
		3254	# 60 allows for the watchdog to kill the server.
		3255
		3256	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3257	and return;
		3258
		3259	# always fsync - this file is important
		3260	aio_fsync $fh
		3261	and return;
		3262
		3263	# touch it again to show we are up-to-date
		3264	aio_utime $fh, undef, undef;
		3265
		3266	close $fh
		3267	or return;
		3268
		3269	aio_rename "$runtime~", $runtime
		3270	and return;
		3271
		3272	warn "runtime file written.\n";
		3273
		3274	1
		3275	}
		3276
		3277	sub emergency_save() {
		3278	my $freeze_guard = cf::freeze_mainloop;
		3279
		3280	warn "enter emergency perl save\n";
		3281
		3282	cf::sync_job {
		3283	# use a peculiar iteration method to avoid tripping on perl
		3284	# refcount bugs in for. also avoids problems with players
		3285	# and maps saved/destroyed asynchronously.
		3286	warn "begin emergency player save\n";
		3287	for my $login (keys %cf::PLAYER) {
		3288	my $pl = $cf::PLAYER{$login} or next;
		3289	$pl->valid or next;
		3290	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3291	$pl->save;
		3292	}
		3293	warn "end emergency player save\n";
		3294
		3295	warn "begin emergency map save\n";
		3296	for my $path (keys %cf::MAP) {
		3297	my $map = $cf::MAP{$path} or next;
		3298	$map->valid or next;
		3299	$map->save;
		3300	}
		3301	warn "end emergency map save\n";
		3302
		3303	warn "begin emergency database checkpoint\n";
		3304	BDB::db_env_txn_checkpoint $DB_ENV;
		3305	warn "end emergency database checkpoint\n";
		3306	};
		3307
		3308	warn "leave emergency perl save\n";
		3309	}
		3310
		3311	sub post_cleanup {
		3312	my ($make_core) = @_;
		3313
		3314	warn Carp::longmess "post_cleanup backtrace"
		3315	if $make_core;
		3316	}
		3317
2004	sub reload() {	3318	sub do_reload_perl() {
2005	# can/must only be called in main	3319	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3320	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3321	warn "can only reload from main coroutine";
2008	return;	3322	return;
2009	}	3323	}
2010		3324
2011	warn "reloading...";	3325	warn "reloading...";
2012		3326
2013	local $FREEZE = 1;	3327	warn "entering sync_job";
		3328
		3329	cf::sync_job {
		3330	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	3331	cf::emergency_save;
		3332	cf::write_runtime; # external watchdog should not bark
2015		3333
2016	eval {	3334	warn "syncing database to disk";
		3335	BDB::db_env_txn_checkpoint $DB_ENV;
		3336
2017	# if anything goes wrong in here, we should simply crash as we already saved	3337	# if anything goes wrong in here, we should simply crash as we already saved
2018		3338
2019	# cancel all watchers	3339	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	3340	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3341	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	3342	}
2023		3343
		3344	warn "flushing outstanding aio requests";
		3345	for (;;) {
		3346	BDB::flush;
		3347	IO::AIO::flush;
		3348	Coro::cede;
		3349	last unless IO::AIO::nreqs || BDB::nreqs;
		3350	warn "iterate...";
		3351	}
		3352
		3353	++$RELOAD;
		3354
2024	# cancel all extension coros	3355	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3356	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3357	%EXT_CORO = ();
2027		3358
2028	# unload all extensions	3359	warn "removing commands";
2029	for (@exts) {	3360	%COMMAND = ();
		3361
		3362	warn "removing ext/exti commands";
		3363	%EXTCMD = ();
		3364	%EXTICMD = ();
		3365
		3366	warn "unloading/nuking all extensions";
		3367	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	3368	warn "... unloading $pkg";
2031	unload_extension $_;	3369
		3370	if (my $cb = $pkg->can ("unload")) {
		3371	eval {
		3372	$cb->($pkg);
		3373	1
		3374	} or warn "$pkg unloaded, but with errors: $@";
2032	}	3375	}
2033		3376
		3377	warn "... nuking $pkg";
		3378	Symbol::delete_package $pkg;
		3379	}
		3380
2034	# unload all modules loaded from $LIBDIR	3381	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	3382	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3383	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		3384
2038	warn "removing <$k>";	3385	warn "... unloading $k";
2039	delete $INC{$k};	3386	delete $INC{$k};
2040		3387
2041	$k =~ s/\.pm$//;	3388	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	3389	$k =~ s/\//::/g;
2043		3390
…		…
2046	}	3393	}
2047		3394
2048	Symbol::delete_package $k;	3395	Symbol::delete_package $k;
2049	}	3396	}
2050		3397
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3398	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3399	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3400	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3401
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	3402	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	3403	delete $INC{"cf.pm"};
		3404	delete $INC{"cf/pod.pm"};
2064		3405
2065	# don't, removes xs symbols, too,	3406	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3407	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3408	#Symbol::delete_package __PACKAGE__;
2068		3409
2069	# reload cf.pm	3410	warn "unload completed, starting to reload now";
		3411
2070	warn "reloading cf.pm";	3412	warn "reloading cf.pm";
2071	require cf;	3413	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3414	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3415
2074	# load config and database again	3416	warn "loading config and database again";
2075	cf::cfg_load;	3417	cf::reload_config;
2076	cf::db_load;
2077		3418
2078	# load extensions
2079	warn "load extensions";	3419	warn "loading extensions";
2080	cf::load_extensions;	3420	cf::load_extensions;
2081		3421
2082	# reattach attachments to objects	3422	warn "reattaching attachments to objects/players";
2083	warn "reattach";	3423	_global_reattach; # objects, sockets
2084	_global_reattach;	3424	warn "reattaching attachments to maps";
2085	};	3425	reattach $_ for values %MAP;
		3426	warn "reattaching attachments to players";
		3427	reattach $_ for values %PLAYER;
2086		3428
2087	if ($@) {	3429	warn "leaving sync_job";
		3430
		3431	1
		3432	} or do {
2088	warn $@;	3433	warn $@;
2089	warn "error while reloading, exiting.";	3434	warn "error while reloading, exiting.";
2090	exit 1;	3435	exit 1;
2091	}	3436	};
2092		3437
2093	warn "reloaded successfully";	3438	warn "reloaded";
2094	};	3439	};
2095		3440
2096	#############################################################################	3441	our $RELOAD_WATCHER; # used only during reload
2097		3442
2098	unless ($LINK_MAP) {	3443	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	3444	# doing reload synchronously and two reloads happen back-to-back,
		3445	# coro crashes during coro_state_free->destroy here.
2100		3446
2101	$LINK_MAP->width (41);	3447	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	3448	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	3449	after => 0,
		3450	data => WF_AUTOCANCEL,
2111	cb => sub {	3451	cb => sub {
2112	$_[0]->w->cancel;	3452	do_reload_perl;
2113		3453	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	3454	},
2132		3455	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3456	}
2138
2139	register "<global>", __PACKAGE__;
2140		3457
2141	register_command "reload" => sub {	3458	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3459	my ($who, $arg) = @_;
2143		3460
2144	if ($who->flag (FLAG_WIZ)) {	3461	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3462	$who->message ("reloading server.");
		3463	async {
		3464	$Coro::current->{desc} = "perl_reload";
		3465	reload_perl;
		3466	};
2148	}	3467	}
2149	};	3468	};
2150		3469
2151	unshift @INC, $LIBDIR;	3470	unshift @INC, $LIBDIR;
		3471
		3472	my $bug_warning = 0;
		3473
		3474	our @WAIT_FOR_TICK;
		3475	our @WAIT_FOR_TICK_BEGIN;
		3476
		3477	sub wait_for_tick {
		3478	return unless $TICK_WATCHER->is_active;
		3479	return if $Coro::current == $Coro::main;
		3480
		3481	my $signal = new Coro::Signal;
		3482	push @WAIT_FOR_TICK, $signal;
		3483	$signal->wait;
		3484	}
		3485
		3486	sub wait_for_tick_begin {
		3487	return unless $TICK_WATCHER->is_active;
		3488	return if $Coro::current == $Coro::main;
		3489
		3490	my $signal = new Coro::Signal;
		3491	push @WAIT_FOR_TICK_BEGIN, $signal;
		3492	$signal->wait;
		3493	}
2152		3494
2153	$TICK_WATCHER = Event->timer (	3495	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	3496	reentrant => 0,
		3497	parked => 1,
2155	prio => 0,	3498	prio => 0,
2156	at => $NEXT_TICK || $TICK,	3499	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	3500	data => WF_AUTOCANCEL,
2158	cb => sub {	3501	cb => sub {
2159	unless ($FREEZE) {	3502	if ($Coro::current != $Coro::main) {
		3503	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3504	unless ++$bug_warning > 10;
		3505	return;
		3506	}
		3507
		3508	$NOW = $tick_start = Event::time;
		3509
2160	cf::server_tick; # one server iteration	3510	cf::server_tick; # one server iteration
		3511
2161	$RUNTIME += $TICK;	3512	$RUNTIME += $TICK;
2162	}
2163
2164	$NEXT_TICK += $TICK;	3513	$NEXT_TICK += $TICK;
2165		3514
		3515	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3516	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3517	Coro::async_pool {
		3518	$Coro::current->{desc} = "runtime saver";
		3519	write_runtime
		3520	or warn "ERROR: unable to write runtime file: $!";
		3521	};
		3522	}
		3523
		3524	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3525	$sig->send;
		3526	}
		3527	while (my $sig = shift @WAIT_FOR_TICK) {
		3528	$sig->send;
		3529	}
		3530
		3531	$NOW = Event::time;
		3532
2166	# if we are delayed by four ticks or more, skip them all	3533	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3534	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2168		3535
2169	$TICK_WATCHER->at ($NEXT_TICK);	3536	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	3537	$TICK_WATCHER->start;
		3538
		3539	$LOAD = ($NOW - $tick_start) / $TICK;
		3540	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3541
		3542	_post_tick;
2171	},	3543	},
2172	);	3544	);
2173		3545
		3546	{
		3547	BDB::min_parallel 8;
2174	IO::AIO::max_poll_time $TICK * 0.2;	3548	BDB::max_poll_time $TICK * 0.1;
2175		3549	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	3550	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	3551	fd => BDB::poll_fileno,
2178	poll => 'r',	3552	poll => 'r',
2179	prio => 5,	3553	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	3554	data => WF_AUTOCANCEL,
		3555	cb => \&BDB::poll_cb,
		3556	);
		3557
		3558	BDB::set_sync_prepare {
		3559	my $status;
		3560	my $current = $Coro::current;
		3561	(
		3562	sub {
		3563	$status = $!;
		3564	$current->ready; undef $current;
		3565	},
		3566	sub {
		3567	Coro::schedule while defined $current;
		3568	$! = $status;
		3569	},
		3570	)
		3571	};
		3572
		3573	unless ($DB_ENV) {
		3574	$DB_ENV = BDB::db_env_create;
		3575	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3576	| BDB::LOG_AUTOREMOVE, 1);
		3577	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3578	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3579
		3580	cf::sync_job {
		3581	eval {
		3582	BDB::db_env_open
		3583	$DB_ENV,
		3584	$BDBDIR,
		3585	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3586	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3587	0666;
		3588
		3589	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3590	};
		3591
		3592	cf::cleanup "db_env_open(db): $@" if $@;
		3593	};
		3594	}
		3595
		3596	$BDB_DEADLOCK_WATCHER = Event->timer (
2186	after => 0,	3597	after => 3,
2187	interval => 10,	3598	interval => 1,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
2188	cb => sub {	3602	cb => sub {
2189	(Coro::unblock_sub {	3603	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2190	write_runtime	3604	},
2191	or warn "ERROR: unable to write runtime file: $!";	3605	);
		3606	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3607	after => 11,
		3608	interval => 60,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3614	},
		3615	);
		3616	$BDB_TRICKLE_WATCHER = Event->timer (
		3617	after => 5,
		3618	interval => 10,
		3619	hard => 1,
		3620	prio => 0,
		3621	data => WF_AUTOCANCEL,
		3622	cb => sub {
		3623	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3624	},
		3625	);
		3626	}
		3627
		3628	{
		3629	IO::AIO::min_parallel 8;
		3630
		3631	undef $Coro::AIO::WATCHER;
		3632	IO::AIO::max_poll_time $TICK * 0.1;
		3633	$AIO_POLL_WATCHER = Event->io (
		3634	reentrant => 0,
		3635	data => WF_AUTOCANCEL,
		3636	fd => IO::AIO::poll_fileno,
		3637	poll => 'r',
		3638	prio => 0,
		3639	cb => \&IO::AIO::poll_cb,
		3640	);
		3641	}
		3642
		3643	my $_log_backtrace;
		3644
		3645	sub _log_backtrace {
		3646	my ($msg, @addr) = @_;
		3647
		3648	$msg =~ s/\n//;
		3649
		3650	# limit the # of concurrent backtraces
		3651	if ($_log_backtrace < 2) {
		3652	++$_log_backtrace;
		3653	async {
		3654	$Coro::current->{desc} = "abt $msg";
		3655
		3656	my @bt = fork_call {
		3657	@addr = map { sprintf "%x", $_ } @addr;
		3658	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3659	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3660	or die "addr2line: $!";
		3661
		3662	my @funcs;
		3663	my @res = <$fh>;
		3664	chomp for @res;
		3665	while (@res) {
		3666	my ($func, $line) = splice @res, 0, 2, ();
		3667	push @funcs, "[$func] $line";
		3668	}
		3669
		3670	@funcs
		3671	};
		3672
		3673	LOG llevInfo, "[ABT] $msg\n";
		3674	LOG llevInfo, "[ABT] $_\n" for @bt;
		3675	--$_log_backtrace;
2192	})->();	3676	};
		3677	} else {
		3678	LOG llevInfo, "[ABT] $msg\n";
		3679	LOG llevInfo, "[ABT] [suppressed]\n";
2193	},	3680	}
2194	);	3681	}
		3682
		3683	# load additional modules
		3684	use cf::pod;
2195		3685
2196	END { cf::emergency_save }	3686	END { cf::emergency_save }
2197		3687
2198	1	3688	1
2199		3689

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