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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.373 by root, Sat Sep 15 15:58:06 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_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	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
		395	}
		396
		397	=item cf::async { BLOCK }
		398
		399	Currently the same as Coro::async_pool, meaning you cannot use
		400	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		401	thing you are allowed to do is call C<prio> on it.
		402
		403	=cut
		404
		405	BEGIN { *async = \&Coro::async_pool }
		406
250	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
251		408
252	The design of crossfire+ requires that the main coro ($Coro::main) is	409	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	410	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.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
255		413
256	If it must be done, put the blocking parts into C<sync_job>. This will run	414	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	415	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	416	server will be frozen during this time, so the block should either finish
259	fast or be very important.	417	fast or be very important.
…		…
262		420
263	sub sync_job(&) {	421	sub sync_job(&) {
264	my ($job) = @_;	422	my ($job) = @_;
265		423
266	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
267	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
269		429
270	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	431	# (but this is cancel-safe)
272	local $FREEZE = 1;	432	my $freeze_guard = freeze_mainloop;
273		433
274	my $busy = 1;	434	my $busy = 1;
275	my @res;	435	my @res;
276		436
277	(Coro::async {	437	(async {
278	@res = eval { $job->() };	438	@res = eval { $job->() };
279	warn $@ if $@;	439	warn $@ if $@;
280	undef $busy;	440	undef $busy;
281	})->prio (Coro::PRIO_MAX);	441	})->prio (Coro::PRIO_MAX);
282		442
283	while ($busy) {	443	while ($busy) {
284	Coro::cede_notself;	444	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	445	}
		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
287		453
288	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
289	} else {	455	} else {
290	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
291		457
292	$job->()	458	$job->()
293	}	459	}
294	}	460	}
295		461
296	=item $coro = cf::coro { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
297		463
298	Creates and returns a new coro. This coro is automcatially being canceled	464	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	465	extension calling this is being unloaded.
300		466
301	=cut	467	=cut
302		468
303	sub coro(&) {	469	sub async_ext(&) {
304	my $cb = shift;	470	my $cb = shift;
305		471
306	my $coro; $coro = async {	472	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		473
313	$coro->on_destroy (sub {	474	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	475	delete $EXT_CORO{$coro+0};
315	});	476	});
316	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
317		478
318	$coro	479	$coro
319	}	480	}
320		481
321	sub write_runtime {	482	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		483
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
325	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
326		488
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		490
331	aio_fsync $fh	491	sub fork_call(&@) {
332	and return;	492	my ($cb, @args) = @_;
333		493
334	close $fh	494	# we seemingly have to make a local copy of the whole thing,
335	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
336		497
337	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
338	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
339		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
340	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	642	}
342		643
343	=back	644	=back
344		645
345	=cut	646	=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		647
467	#############################################################################	648	#############################################################################
468		649
469	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
470		651
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
474		655
475	In the following description, CLASS can be any of C<global>, C<object>	656	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	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	658	Crossfire TRT).
478		659
479	=over 4	660	=over 4
480		661
481	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
482		663
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	778	our @CB_MAP = ();
598		779
599	my %attachment;	780	my %attachment;
600		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
601	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
603		790
604	use sort 'stable';	791	use sort 'stable';
605		792
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
640		827
641	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		832
646	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	834	my $pkg = shift @arg;
648		835
649	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
679	}	866	}
680		867
681	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
682	} else {	869	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	871	}
685		872
686	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
687	}	874	}
688		875
…		…
690	if (ref $_[0]) {	877	if (ref $_[0]) {
691	_object_attach @_;	878	_object_attach @_;
692	} else {	879	} else {
693	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
694	}	881	}
		882	_recalc_want;
695	};	883	};
696		884
697	# all those should be optimised	885	# all those should be optimised
698	sub cf::attachable::detach {	886	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
703	reattach ($obj);	891	reattach ($obj);
704	} else {	892	} else {
705	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
706	}	894	}
		895	_recalc_want;
707	};	896	};
708		897
709	sub cf::attachable::attached {	898	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
711		900
…		…
726	";	915	";
727	die if $@;	916	die if $@;
728	}	917	}
729		918
730	our $override;	919	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		921
733	sub override {	922	sub override {
734	$override = 1;	923	$override = 1;
735	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
736	}	925	}
737		926
738	sub do_invoke {	927	sub do_invoke {
739	my $event = shift;	928	my $event = shift;
740	my $callbacks = shift;	929	my $callbacks = shift;
741		930
742	@invoke_results = ();	931	@INVOKE_RESULTS = ();
743		932
744	local $override;	933	local $override;
745		934
746	for (@$callbacks) {	935	for (@$callbacks) {
747	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
764		953
765	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
766		955
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	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	957	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		959
771	=back	960	=back
772		961
773	=cut	962	=cut
774		963
775	#############################################################################	964	#############################################################################
776	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
777		977
778	sub reattach {	978	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		983
782	my $registry = $obj->registry;	984	my $registry = $obj->registry;
783		985
784	@$registry = ();	986	@$registry = ();
785		987
…		…
826	sub object_freezer_save {	1028	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
828		1030
829	sync_job {	1031	sync_job {
830	if (length $$rdata) {	1032	if (length $$rdata) {
		1033	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1034	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1035	$decname, length $$rdata, scalar @$objs;
833		1036
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1037	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1038	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1039	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1040	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1041	close $fh;
839		1042
840	if (@$objs) {	1043	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1044	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1045	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1046	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1047	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1048	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1049	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1050	aio_rename "$filename.pst~", "$filename.pst";
848	}	1051	}
849	} else {	1052	} else {
850	aio_unlink "$filename.pst";	1053	aio_unlink "$filename.pst";
…		…
856	}	1059	}
857	} else {	1060	} else {
858	aio_unlink $filename;	1061	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1062	aio_unlink "$filename.pst";
860	}	1063	}
861	}	1064	};
862	}	1065	}
863		1066
864	sub object_freezer_as_string {	1067	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1068	my ($rdata, $objs) = @_;
866		1069
…		…
878	or return;	1081	or return;
879		1082
880	unless (aio_stat "$filename.pst") {	1083	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1084	(aio_load "$filename.pst", $av) >= 0
882	or return;	1085	or return;
		1086
883	$av = eval { (Storable::thaw $av)->{objs} };	1087	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1088	}
885		1089
		1090	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1091	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1092	$decname, length $data, scalar @{$av || []};
		1093
888	return ($data, $av);	1094	($data, $av)
889	}	1095	}
		1096
		1097	=head2 COMMAND CALLBACKS
		1098
		1099	=over 4
		1100
		1101	=cut
890		1102
891	#############################################################################	1103	#############################################################################
892	# command handling &c	1104	# command handling &c
893		1105
894	=item cf::register_command $name => \&callback($ob,$args);	1106	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1119	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1120	}
909		1121
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1122	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1123
912	Register a callbackf ro execution when the client sends an extcmd packet.	1124	Register a callback for execution when the client sends an (synchronous)
		1125	extcmd packet. Ext commands will be processed in the order they are
		1126	received by the server, like other user commands. The first argument is
		1127	the logged-in player. Ext commands can only be processed after a player
		1128	has logged in successfully.
913		1129
914	If the callback returns something, it is sent back as if reply was being	1130	If the callback returns something, it is sent back as if reply was being
915	called.	1131	called.
916		1132
		1133	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1134
		1135	Register a callback for execution when the client sends an (asynchronous)
		1136	exticmd packet. Exti commands are processed by the server as soon as they
		1137	are received, i.e. out of order w.r.t. other commands. The first argument
		1138	is a client socket. Exti commands can be received anytime, even before
		1139	log-in.
		1140
		1141	If the callback returns something, it is sent back as if reply was being
		1142	called.
		1143
917	=cut	1144	=cut
918		1145
919	sub register_extcmd {	1146	sub register_extcmd {
920	my ($name, $cb) = @_;	1147	my ($name, $cb) = @_;
921		1148
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1149	$EXTCMD{$name} = $cb;
		1150	}
		1151
		1152	sub register_exticmd {
		1153	my ($name, $cb) = @_;
		1154
		1155	$EXTICMD{$name} = $cb;
926	}	1156	}
927		1157
928	cf::player->attach (	1158	cf::player->attach (
929	on_command => sub {	1159	on_command => sub {
930	my ($pl, $name, $params) = @_;	1160	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1169	cf::override;
940	},	1170	},
941	on_extcmd => sub {	1171	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1172	my ($pl, $buf) = @_;
943		1173
944	my $msg = eval { from_json $buf };	1174	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1175
946	if (ref $msg) {	1176	if (ref $msg) {
		1177	my ($type, $reply, @payload) =
		1178	"ARRAY" eq ref $msg
		1179	? @$msg
		1180	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1181
		1182	my @reply;
		1183
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1184	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1185	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1186	}
		1187
		1188	$pl->ext_reply ($reply, @reply)
		1189	if $reply;
		1190
952	} else {	1191	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1193	}
955		1194
956	cf::override;	1195	cf::override;
957	},	1196	},
958	);	1197	);
959		1198
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
		1203	for my $path (<$LIBDIR/*.ext>) {
		1204	next unless -r $path;
		1205
		1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
		1263	}
		1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
		1269	};
		1270	}
		1271
		1272	#############################################################################
		1273
		1274	=back
		1275
		1276	=head2 CORE EXTENSIONS
		1277
		1278	Functions and methods that extend core crossfire objects.
		1279
		1280	=cut
		1281
		1282	package cf::player;
		1283
		1284	use Coro::AIO;
		1285
		1286	=head3 cf::player
		1287
		1288	=over 4
		1289
		1290	=item cf::player::num_playing
		1291
		1292	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1293
		1294	=cut
		1295
		1296	sub num_playing {
		1297	scalar grep
		1298	$_->ob->map
		1299	&& !$_->hidden
		1300	&& !$_->ob->flag (cf::FLAG_WIZ),
		1301	cf::player::list
		1302	}
		1303
		1304	=item cf::player::find $login
		1305
		1306	Returns the given player object, loading it if necessary (might block).
		1307
		1308	=cut
		1309
		1310	sub playerdir($) {
		1311	"$PLAYERDIR/"
		1312	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1313	}
		1314
		1315	sub path($) {
		1316	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1317
		1318	(playerdir $login) . "/playerdata"
		1319	}
		1320
		1321	sub find_active($) {
		1322	$cf::PLAYER{$_[0]}
		1323	and $cf::PLAYER{$_[0]}->active
		1324	and $cf::PLAYER{$_[0]}
		1325	}
		1326
		1327	sub exists($) {
		1328	my ($login) = @_;
		1329
		1330	$cf::PLAYER{$login}
		1331	or cf::sync_job { !aio_stat path $login }
		1332	}
		1333
		1334	sub find($) {
		1335	return $cf::PLAYER{$_[0]} || do {
		1336	my $login = $_[0];
		1337
		1338	my $guard = cf::lock_acquire "user_find:$login";
		1339
		1340	$cf::PLAYER{$_[0]} || do {
		1341	# rename old playerfiles to new ones
		1342	#TODO: remove when no longer required
		1343	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1344	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1345	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1346	aio_unlink +(playerdir $login) . "/$login.pl";
		1347
		1348	my $f = new_from_file cf::object::thawer path $login
		1349	or return;
		1350
		1351	my $pl = cf::player::load_pl $f
		1352	or return;
		1353	local $cf::PLAYER_LOADING{$login} = $pl;
		1354	$f->resolve_delayed_derefs;
		1355	$cf::PLAYER{$login} = $pl
		1356	}
		1357	}
		1358	}
		1359
		1360	sub save($) {
		1361	my ($pl) = @_;
		1362
		1363	return if $pl->{deny_save};
		1364
		1365	my $path = path $pl;
		1366	my $guard = cf::lock_acquire "user_save:$path";
		1367
		1368	return if $pl->{deny_save};
		1369
		1370	aio_mkdir playerdir $pl, 0770;
		1371	$pl->{last_save} = $cf::RUNTIME;
		1372
		1373	$pl->save_pl ($path);
		1374	cf::cede_to_tick;
		1375	}
		1376
		1377	sub new($) {
		1378	my ($login) = @_;
		1379
		1380	my $self = create;
		1381
		1382	$self->ob->name ($login);
		1383	$self->{deny_save} = 1;
		1384
		1385	$cf::PLAYER{$login} = $self;
		1386
		1387	$self
		1388	}
		1389
		1390	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1391
		1392	=cut
		1393
		1394	sub send_msg {
		1395	my $ns = shift->ns
		1396	or return;
		1397	$ns->send_msg (@_);
		1398	}
		1399
		1400	=item $pl->quit_character
		1401
		1402	Nukes the player without looking back. If logged in, the connection will
		1403	be destroyed. May block for a long time.
		1404
		1405	=cut
		1406
		1407	sub quit_character {
		1408	my ($pl) = @_;
		1409
		1410	my $name = $pl->ob->name;
		1411
		1412	$pl->{deny_save} = 1;
		1413	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1414
		1415	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1416	$pl->deactivate;
		1417	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1418	$pl->ns->destroy if $pl->ns;
		1419
		1420	my $path = playerdir $pl;
		1421	my $temp = "$path~$cf::RUNTIME~deleting~";
		1422	aio_rename $path, $temp;
		1423	delete $cf::PLAYER{$pl->ob->name};
		1424	$pl->destroy;
		1425
		1426	my $prefix = qr<^~\Q$name\E/>;
		1427
		1428	# nuke player maps
		1429	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1430
		1431	IO::AIO::aio_rmtree $temp;
		1432	}
		1433
		1434	=item $pl->kick
		1435
		1436	Kicks a player out of the game. This destroys the connection.
		1437
		1438	=cut
		1439
		1440	sub kick {
		1441	my ($pl, $kicker) = @_;
		1442
		1443	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1444	$pl->killer ("kicked");
		1445	$pl->ns->destroy;
		1446	}
		1447
		1448	=item cf::player::list_logins
		1449
		1450	Returns am arrayref of all valid playernames in the system, can take a
		1451	while and may block, so not sync_job-capable, ever.
		1452
		1453	=cut
		1454
		1455	sub list_logins {
		1456	my $dirs = aio_readdir $PLAYERDIR
		1457	or return [];
		1458
		1459	my @logins;
		1460
		1461	for my $login (@$dirs) {
		1462	my $path = path $login;
		1463
		1464	# a .pst is a dead give-away for a valid player
		1465	unless (-e "$path.pst") {
		1466	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1467	aio_read $fh, 0, 512, my $buf, 0 or next;
		1468	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1469	}
		1470
		1471	utf8::decode $login;
		1472	push @logins, $login;
		1473	}
		1474
		1475	\@logins
		1476	}
		1477
		1478	=item $player->maps
		1479
		1480	Returns an arrayref of map paths that are private for this
		1481	player. May block.
		1482
		1483	=cut
		1484
		1485	sub maps($) {
		1486	my ($pl) = @_;
		1487
		1488	$pl = ref $pl ? $pl->ob->name : $pl;
		1489
		1490	my $files = aio_readdir playerdir $pl
		1491	or return;
		1492
		1493	my @paths;
		1494
		1495	for (@$files) {
		1496	utf8::decode $_;
		1497	next if /\.(?:pl|pst)$/;
		1498	next unless /^$PATH_SEP/o;
		1499
		1500	push @paths, cf::map::normalise "~$pl/$_";
		1501	}
		1502
		1503	\@paths
		1504	}
		1505
		1506	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1507
		1508	Expand crossfire pod fragments into protocol xml.
		1509
		1510	=cut
		1511
		1512	sub expand_cfpod {
		1513	((my $self), (local $_)) = @_;
		1514
		1515	# escape & and <
		1516	s/&/&amp;/g;
		1517	s/(?<![BIUGHT])</&lt;/g;
		1518
		1519	# this is buggy, it needs to properly take care of nested <'s
		1520
		1521	1 while
		1522	# replace B<>, I<>, U<> etc.
		1523	s/B<([^\>]*)>/<b>$1<\/b>/
		1524	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1525	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1526	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1527	# replace G<male|female> tags
		1528	|| s{G<([^>|]*)\|([^>]*)>}{
		1529	$self->gender ? $2 : $1
		1530	}ge
		1531	# replace H<hint text>
		1532	|| s{H<([^\>]*)>}
		1533	{
		1534	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1535	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1536	"")
		1537	[$self->{hintmode}]
		1538	}ge;
		1539
		1540	# create single paragraphs (very hackish)
		1541	s/(?<=\S)\n(?=\w)/ /g;
		1542
		1543	# compress some whitespace
		1544	s/\s+\n/\n/g; # ws line-ends
		1545	s/\n\n+/\n/g; # double lines
		1546	s/^\n+//; # beginning lines
		1547	s/\n+$//; # ending lines
		1548
		1549	$_
		1550	}
		1551
		1552	sub hintmode {
		1553	$_[0]{hintmode} = $_[1] if @_ > 1;
		1554	$_[0]{hintmode}
		1555	}
		1556
		1557	=item $player->ext_reply ($msgid, @msg)
		1558
		1559	Sends an ext reply to the player.
		1560
		1561	=cut
		1562
		1563	sub ext_reply($$@) {
		1564	my ($self, $id, @msg) = @_;
		1565
		1566	$self->ns->ext_reply ($id, @msg)
		1567	}
		1568
		1569	=item $player->ext_msg ($type, @msg)
		1570
		1571	Sends an ext event to the client.
		1572
		1573	=cut
		1574
		1575	sub ext_msg($$@) {
		1576	my ($self, $type, @msg) = @_;
		1577
		1578	$self->ns->ext_msg ($type, @msg);
		1579	}
		1580
		1581	=head3 cf::region
		1582
		1583	=over 4
		1584
		1585	=cut
		1586
		1587	package cf::region;
		1588
		1589	=item cf::region::find_by_path $path
		1590
		1591	Tries to decuce the likely region for a map knowing only its path.
		1592
		1593	=cut
		1594
		1595	sub find_by_path($) {
967	my ($path) = @_;	1596	my ($path) = @_;
968		1597
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1598	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1599
975	warn "loading '$path' into '$pkg'\n";	1600	for my $region (list) {
976		1601	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1602	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1603	if $region->specificity > $specificity;
979		1604	}
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	# }	1605	}
1009		1606
1010	# remove commands	1607	$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	}	1608	}
1116		1609
1117	=back	1610	=back
1118
1119		1611
1120	=head3 cf::map	1612	=head3 cf::map
1121		1613
1122	=over 4	1614	=over 4
1123		1615
…		…
1126	package cf::map;	1618	package cf::map;
1127		1619
1128	use Fcntl;	1620	use Fcntl;
1129	use Coro::AIO;	1621	use Coro::AIO;
1130		1622
		1623	use overload
		1624	'""' => \&as_string,
		1625	fallback => 1;
		1626
1131	our $MAX_RESET = 7200;	1627	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1628	our $DEFAULT_RESET = 3000;
1133		1629
1134	sub generate_random_map {	1630	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1631	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1632	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1633	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1634	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1635	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1636	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1637	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1638	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1639	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1640	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1641	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1642	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1643	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1644	(cf::region::find $rmp->{region}), $rmp->{custom}
		1645	)
		1646	}
		1647
		1648	=item cf::map->register ($regex, $prio)
		1649
		1650	Register a handler for the map path matching the given regex at the
		1651	givne priority (higher is better, built-in handlers have priority 0, the
		1652	default).
		1653
		1654	=cut
		1655
		1656	sub register {
		1657	my (undef, $regex, $prio) = @_;
		1658	my $pkg = caller;
		1659
		1660	no strict;
		1661	push @{"$pkg\::ISA"}, __PACKAGE__;
		1662
		1663	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1664	}
		1665
		1666	# also paths starting with '/'
		1667	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1668
		1669	sub thawer_merge {
		1670	my ($self, $merge) = @_;
		1671
		1672	# we have to keep some variables in memory intact
		1673	local $self->{path};
		1674	local $self->{load_path};
		1675
		1676	$self->SUPER::thawer_merge ($merge);
		1677	}
		1678
		1679	sub normalise {
		1680	my ($path, $base) = @_;
		1681
		1682	$path = "$path"; # make sure its a string
		1683
		1684	$path =~ s/\.map$//;
		1685
		1686	# map plan:
		1687	#
		1688	# /! non-realised random map exit (special hack!)
		1689	# {... are special paths that are not being touched
		1690	# ?xxx/... are special absolute paths
		1691	# ?random/... random maps
		1692	# /... normal maps
		1693	# ~user/... per-player map of a specific user
		1694
		1695	$path =~ s/$PATH_SEP/\//go;
		1696
		1697	# treat it as relative path if it starts with
		1698	# something that looks reasonable
		1699	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1700	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1701
		1702	$base =~ s{[^/]+/?$}{};
		1703	$path = "$base/$path";
		1704	}
		1705
		1706	for ($path) {
		1707	redo if s{//}{/};
		1708	redo if s{/\.?/}{/};
		1709	redo if s{/[^/]+/\.\./}{/};
		1710	}
		1711
		1712	$path
		1713	}
		1714
		1715	sub new_from_path {
		1716	my (undef, $path, $base) = @_;
		1717
		1718	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1719
		1720	$path = normalise $path, $base;
		1721
		1722	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1723	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1724	my $self = bless cf::map::new, $pkg;
		1725	$self->{path} = $path; $self->path ($path);
		1726	$self->init; # pass $1 etc.
		1727	return $self;
		1728	}
		1729	}
		1730
		1731	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1732	()
		1733	}
		1734
		1735	sub init {
		1736	my ($self) = @_;
		1737
		1738	$self
		1739	}
		1740
		1741	sub as_string {
		1742	my ($self) = @_;
		1743
		1744	"$self->{path}"
		1745	}
		1746
		1747	# the displayed name, this is a one way mapping
		1748	sub visible_name {
		1749	&as_string
		1750	}
		1751
		1752	# the original (read-only) location
		1753	sub load_path {
		1754	my ($self) = @_;
		1755
		1756	"$MAPDIR/$self->{path}.map"
		1757	}
		1758
		1759	# the temporary/swap location
		1760	sub save_path {
		1761	my ($self) = @_;
		1762
		1763	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1764	"$TMPDIR/$path.map"
		1765	}
		1766
		1767	# the unique path, undef == no special unique path
		1768	sub uniq_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$UNIQUEDIR/$path"
1151	}	1773	}
1152		1774
1153	# and all this just because we cannot iterate over	1775	# and all this just because we cannot iterate over
1154	# all maps in C++...	1776	# all maps in C++...
1155	sub change_all_map_light {	1777	sub change_all_map_light {
…		…
1157		1779
1158	$_->change_map_light ($change)	1780	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1781	for grep $_->outdoor, values %cf::MAP;
1160	}	1782	}
1161		1783
		1784	sub decay_objects {
		1785	my ($self) = @_;
		1786
		1787	return if $self->{deny_reset};
		1788
		1789	$self->do_decay_objects;
		1790	}
		1791
		1792	sub unlink_save {
		1793	my ($self) = @_;
		1794
		1795	utf8::encode (my $save = $self->save_path);
		1796	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1797	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1798	}
		1799
1162	sub try_load_header($) {	1800	sub load_header_from($) {
1163	my ($path) = @_;	1801	my ($self, $path) = @_;
1164		1802
1165	utf8::encode $path;	1803	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1804	my $f = new_from_file cf::object::thawer $path
1167	or return;	1805	or return;
1168		1806
1169	my $map = cf::map::new	1807	$self->_load_header ($f)
1170	or return;	1808	or return;
1171		1809
1172	$map->load_header ($path)	1810	local $MAP_LOADING{$self->{path}} = $self;
		1811	$f->resolve_delayed_derefs;
		1812
		1813	$self->{load_path} = $path;
		1814
		1815	1
		1816	}
		1817
		1818	sub load_header_orig {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->load_path)
		1822	}
		1823
		1824	sub load_header_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->load_header_from ($self->save_path)
		1828	}
		1829
		1830	sub prepare_temp {
		1831	my ($self) = @_;
		1832
		1833	$self->last_access ((delete $self->{last_access})
		1834	|| $cf::RUNTIME); #d#
		1835	# safety
		1836	$self->{instantiate_time} = $cf::RUNTIME
		1837	if $self->{instantiate_time} > $cf::RUNTIME;
		1838	}
		1839
		1840	sub prepare_orig {
		1841	my ($self) = @_;
		1842
		1843	$self->{load_original} = 1;
		1844	$self->{instantiate_time} = $cf::RUNTIME;
		1845	$self->last_access ($cf::RUNTIME);
		1846	$self->instantiate;
		1847	}
		1848
		1849	sub load_header {
		1850	my ($self) = @_;
		1851
		1852	if ($self->load_header_temp) {
		1853	$self->prepare_temp;
		1854	} else {
		1855	$self->load_header_orig
1173	or return;	1856	or return;
		1857	$self->prepare_orig;
		1858	}
1174		1859
1175	$map->{load_path} = $path;	1860	$self->{deny_reset} = 1
		1861	if $self->no_reset;
1176		1862
1177	$map	1863	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1864	unless $self->default_region;
1179		1865
		1866	1
		1867	}
		1868
1180	sub find_map;	1869	sub find;
1181	sub find_map {	1870	sub find {
1182	my ($path, $origin) = @_;	1871	my ($path, $origin) = @_;
1183		1872
1184	#warn "find_map<$path,$origin>\n";#d#
1185
1186	$path = new cf::path $path, $origin && $origin->path;	1873	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		1874
		1875	cf::lock_wait "map_data:$path";#d#remove
1189	cf::lock_wait "map_find:$key";	1876	cf::lock_wait "map_find:$path";
1190		1877
1191	$cf::MAP{$key} || do {	1878	$cf::MAP{$path} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	1879	my $guard1 = cf::lock_acquire "map_find:$path";
		1880	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1193		1881
1194	# do it the slow way	1882	my $map = new_from_path cf::map $path
1195	my $map = try_load_header $path->save_path;
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	1883	or return;
1209		1884
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	1885	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		1886
1223	if ($map->should_reset) {	1887	$map->load_header
		1888	or return;
		1889
		1890	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1891	# doing this can freeze the server in a sync job, obviously
		1892	#$cf::WAIT_FOR_TICK->wait;
		1893	undef $guard1;
		1894	undef $guard2;
1224	$map->reset;	1895	$map->reset;
1225	undef $guard;	1896	return find $path;
1226	$map = find_map $path
1227	or return;
1228	}	1897	}
1229		1898
1230	$cf::MAP{$key} = $map	1899	$cf::MAP{$path} = $map
1231	}	1900	}
1232	}	1901	}
		1902
		1903	sub pre_load { }
		1904	sub post_load { }
1233		1905
1234	sub load {	1906	sub load {
1235	my ($self) = @_;	1907	my ($self) = @_;
1236		1908
		1909	local $self->{deny_reset} = 1; # loading can take a long time
		1910
1237	my $path = $self->{path};	1911	my $path = $self->{path};
		1912
		1913	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1914	my $guard = cf::lock_acquire "map_data:$path";
1239		1915
		1916	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1917	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		1918
1242	$self->in_memory (cf::MAP_LOADING);	1919	$self->in_memory (cf::MAP_LOADING);
1243		1920
1244	$self->alloc;	1921	$self->alloc;
1245	$self->load_objects ($self->{load_path}, 1)	1922
		1923	$self->pre_load;
		1924	cf::cede_to_tick;
		1925
		1926	my $f = new_from_file cf::object::thawer $self->{load_path};
		1927	$f->skip_block;
		1928	$self->_load_objects ($f)
1246	or return;	1929	or return;
1247		1930
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1931	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1932	if delete $self->{load_original};
1250		1933
1251	if (my $uniq = $path->uniq_path) {	1934	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1935	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1936	unless (aio_stat $uniq) {
		1937	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	1938	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1939	$self->_load_objects ($f);
		1940	$f->resolve_delayed_derefs;
		1941	}
1256	}	1942	}
1257	}	1943	}
1258		1944
		1945	$f->resolve_delayed_derefs;
		1946
		1947	cf::cede_to_tick;
1259	# now do the right thing for maps	1948	# now do the right thing for maps
1260	$self->link_multipart_objects;	1949	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	1950	$self->difficulty ($self->estimate_difficulty)
1271	unless $self->difficulty;	1951	unless $self->difficulty;
		1952	cf::cede_to_tick;
		1953
		1954	unless ($self->{deny_activate}) {
		1955	$self->decay_objects;
		1956	$self->fix_auto_apply;
		1957	$self->update_buttons;
		1958	cf::cede_to_tick;
		1959	$self->set_darkness_map;
		1960	cf::cede_to_tick;
1272	$self->activate;	1961	$self->activate;
1273	}	1962	}
1274		1963
		1964	$self->{last_save} = $cf::RUNTIME;
		1965	$self->last_access ($cf::RUNTIME);
		1966
1275	$self->in_memory (cf::MAP_IN_MEMORY);	1967	$self->in_memory (cf::MAP_IN_MEMORY);
1276	}	1968	}
1277		1969
1278	sub load_map_sync {	1970	$self->post_load;
		1971	}
		1972
		1973	sub customise_for {
		1974	my ($self, $ob) = @_;
		1975
		1976	return find "~" . $ob->name . "/" . $self->{path}
		1977	if $self->per_player;
		1978
		1979	# return find "?party/" . $ob->name . "/" . $self->{path}
		1980	# if $self->per_party;
		1981
		1982	$self
		1983	}
		1984
		1985	# find and load all maps in the 3x3 area around a map
		1986	sub load_neighbours {
		1987	my ($map) = @_;
		1988
		1989	my @neigh; # diagonal neighbours
		1990
		1991	for (0 .. 3) {
		1992	my $neigh = $map->tile_path ($_)
		1993	or next;
		1994	$neigh = find $neigh, $map
		1995	or next;
		1996	$neigh->load;
		1997
		1998	push @neigh,
		1999	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2000	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2001	}
		2002
		2003	for (grep defined $_->[0], @neigh) {
		2004	my ($path, $origin) = @$_;
		2005	my $neigh = find $path, $origin
		2006	or next;
		2007	$neigh->load;
		2008	}
		2009	}
		2010
		2011	sub find_sync {
1279	my ($path, $origin) = @_;	2012	my ($path, $origin) = @_;
1280		2013
1281	#warn "load_map_sync<$path, $origin>\n";#d#	2014	cf::sync_job { find $path, $origin }
		2015	}
1282		2016
1283	cf::sync_job {	2017	sub do_load_sync {
1284	my $map = cf::map::find_map $path, $origin	2018	my ($map) = @_;
1285	or return;	2019
1286	$map->load;	2020	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1287	$map	2021	if $Coro::current == $Coro::main;
		2022
		2023	cf::sync_job { $map->load };
		2024	}
		2025
		2026	our %MAP_PREFETCH;
		2027	our $MAP_PREFETCHER = undef;
		2028
		2029	sub find_async {
		2030	my ($path, $origin, $load) = @_;
		2031
		2032	$path = normalise $path, $origin && $origin->{path};
		2033
		2034	if (my $map = $cf::MAP{$path}) {
		2035	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2036	}
		2037
		2038	$MAP_PREFETCH{$path} |= $load;
		2039
		2040	$MAP_PREFETCHER ||= cf::async {
		2041	while (%MAP_PREFETCH) {
		2042	while (my ($k, $v) = each %MAP_PREFETCH) {
		2043	if (my $map = find $k) {
		2044	$map->load if $v;
		2045	}
		2046
		2047	delete $MAP_PREFETCH{$k};
		2048	}
		2049	}
		2050	undef $MAP_PREFETCHER;
1288	}	2051	};
		2052	$MAP_PREFETCHER->prio (6);
		2053
		2054	()
1289	}	2055	}
1290		2056
1291	sub save {	2057	sub save {
1292	my ($self) = @_;	2058	my ($self) = @_;
1293		2059
		2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2061
1294	$self->{last_save} = $cf::RUNTIME;	2062	$self->{last_save} = $cf::RUNTIME;
1295		2063
1296	return unless $self->dirty;	2064	return unless $self->dirty;
1297		2065
1298	my $save = $self->{path}->save_path; utf8::encode $save;	2066	my $save = $self->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2067	my $uniq = $self->uniq_path; utf8::encode $uniq;
1300		2068
1301	$self->{load_path} = $save;	2069	$self->{load_path} = $save;
1302		2070
1303	return if $self->{deny_save};	2071	return if $self->{deny_save};
1304		2072
		2073	local $self->{last_access} = $self->last_access;#d#
		2074
		2075	cf::async {
		2076	$_->contr->save for $self->players;
		2077	};
		2078
1305	if ($uniq) {	2079	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2080	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	2081	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	2082	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2083	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	2084	}
1311	}	2085	}
1312		2086
1313	sub swap_out {	2087	sub swap_out {
1314	my ($self) = @_;	2088	my ($self) = @_;
		2089
		2090	# save first because save cedes
		2091	$self->save;
		2092
		2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2094
1316	return if $self->players;	2095	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	2096	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	2097	return if $self->{deny_save};
1319		2098
		2099	$self->in_memory (cf::MAP_SWAPPED);
		2100
1320	$self->save;	2101	$self->deactivate;
		2102	$_->clear_links_to ($self) for values %cf::MAP;
1321	$self->clear;	2103	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);
1323	}	2104	}
1324		2105
1325	sub reset_at {	2106	sub reset_at {
1326	my ($self) = @_;	2107	my ($self) = @_;
1327		2108
1328	# TODO: safety, remove and allow resettable per-player maps	2109	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};
1330	return 1e99 if $self->{deny_reset};	2110	return 1e99 if $self->{deny_reset};
1331		2111
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2112	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2113	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		2114
…		…
1339	my ($self) = @_;	2119	my ($self) = @_;
1340		2120
1341	$self->reset_at <= $cf::RUNTIME	2121	$self->reset_at <= $cf::RUNTIME
1342	}	2122	}
1343		2123
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	2124	sub reset {
1366	my ($self) = @_;	2125	my ($self) = @_;
1367		2126
		2127	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2128
1368	return if $self->players;	2129	return if $self->players;
1369	return if $self->{path}{user_rel};#d#
1370		2130
1371	warn "resetting map ", $self->path;#d#	2131	warn "resetting map ", $self->path;
		2132
		2133	$self->in_memory (cf::MAP_SWAPPED);
		2134
		2135	# need to save uniques path
		2136	unless ($self->{deny_save}) {
		2137	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2138
		2139	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2140	if $uniq;
		2141	}
1372		2142
1373	delete $cf::MAP{$self->path};	2143	delete $cf::MAP{$self->path};
1374		2144
		2145	$self->deactivate;
1375	$_->clear_links_to ($self) for values %cf::MAP;	2146	$_->clear_links_to ($self) for values %cf::MAP;
		2147	$self->clear;
1376		2148
1377	$self->unlink_save;	2149	$self->unlink_save;
1378	$self->destroy;	2150	$self->destroy;
1379	}	2151	}
1380		2152
1381	my $nuke_counter = "aaaa";	2153	my $nuke_counter = "aaaa";
1382		2154
1383	sub nuke {	2155	sub nuke {
1384	my ($self) = @_;	2156	my ($self) = @_;
1385		2157
		2158	{
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
		2161	delete $cf::MAP{$self->path};
		2162
		2163	$self->unlink_save;
		2164
		2165	bless $self, "cf::map";
		2166	delete $self->{deny_reset};
1386	$self->{deny_save} = 1;	2167	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	2168	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	2169	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2170
		2171	$cf::MAP{$self->path} = $self;
		2172	}
		2173
1389	$self->reset; # polite request, might not happen	2174	$self->reset; # polite request, might not happen
1390	}	2175	}
1391		2176
1392	sub customise_for {	2177	=item $maps = cf::map::tmp_maps
1393	my ($map, $ob) = @_;
1394		2178
1395	if ($map->per_player) {	2179	Returns an arrayref with all map paths of currently instantiated and saved
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2180	maps. May block.
		2181
		2182	=cut
		2183
		2184	sub tmp_maps() {
1397	}	2185	[
1398		2186	map {
1399	$map	2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $TMPDIR or [] }
		2192	]
1400	}	2193	}
1401		2194
1402	sub emergency_save {	2195	=item $maps = cf::map::random_maps
1403	local $cf::FREEZE = 1;
1404		2196
1405	warn "enter emergency map save\n";	2197	Returns an arrayref with all map paths of currently instantiated and saved
		2198	random maps. May block.
1406		2199
1407	cf::sync_job {	2200	=cut
1408	warn "begin emergency map save\n";
1409	$_->save for values %cf::MAP;
1410	};
1411		2201
1412	warn "end emergency map save\n";	2202	sub random_maps() {
		2203	[
		2204	map {
		2205	utf8::decode $_;
		2206	/\.map$/
		2207	? normalise "?random/$_"
		2208	: ()
		2209	} @{ aio_readdir $RANDOMDIR or [] }
		2210	]
		2211	}
		2212
		2213	=item cf::map::unique_maps
		2214
		2215	Returns an arrayref of paths of all shared maps that have
		2216	instantiated unique items. May block.
		2217
		2218	=cut
		2219
		2220	sub unique_maps() {
		2221	[
		2222	map {
		2223	utf8::decode $_;
		2224	/\.map$/
		2225	? normalise $_
		2226	: ()
		2227	} @{ aio_readdir $UNIQUEDIR or [] }
		2228	]
1413	}	2229	}
1414		2230
1415	package cf;	2231	package cf;
1416		2232
1417	=back	2233	=back
1418		2234
		2235	=head3 cf::object
		2236
		2237	=cut
		2238
		2239	package cf::object;
		2240
		2241	=over 4
		2242
		2243	=item $ob->inv_recursive
		2244
		2245	Returns the inventory of the object _and_ their inventories, recursively.
		2246
		2247	=cut
		2248
		2249	sub inv_recursive_;
		2250	sub inv_recursive_ {
		2251	map { $_, inv_recursive_ $_->inv } @_
		2252	}
		2253
		2254	sub inv_recursive {
		2255	inv_recursive_ inv $_[0]
		2256	}
		2257
		2258	=item $ref = $ob->ref
		2259
		2260	creates and returns a persistent reference to an objetc that can be stored as a string.
		2261
		2262	=item $ob = cf::object::deref ($refstring)
		2263
		2264	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2265	even if the object actually exists. May block.
		2266
		2267	=cut
		2268
		2269	sub deref {
		2270	my ($ref) = @_;
		2271
		2272	# temporary compatibility#TODO#remove
		2273	$ref =~ s{^<}{player/<};
		2274
		2275	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2276	my ($uuid, $name) = ($1, $2);
		2277	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2278	or return;
		2279	$pl->ob->uuid eq $uuid
		2280	or return;
		2281
		2282	$pl->ob
		2283	} else {
		2284	warn "$ref: cannot resolve object reference\n";
		2285	undef
		2286	}
		2287	}
		2288
		2289	package cf;
		2290
		2291	=back
1419		2292
1420	=head3 cf::object::player	2293	=head3 cf::object::player
1421		2294
1422	=over 4	2295	=over 4
1423		2296
…		…
1437		2310
1438	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2311	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1439		2312
1440	if ($self->{record_replies}) {	2313	if ($self->{record_replies}) {
1441	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2314	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2315
1442	} else {	2316	} else {
		2317	my $pl = $self->contr;
		2318
		2319	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2320	my $dialog = $pl->{npc_dialog};
		2321	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2322
		2323	} else {
1443	$msg = $npc->name . " says: $msg" if $npc;	2324	$msg = $npc->name . " says: $msg" if $npc;
1444	$self->message ($msg, $flags);	2325	$self->message ($msg, $flags);
		2326	}
1445	}	2327	}
		2328	}
		2329
		2330	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2331
		2332	=cut
		2333
		2334	sub cf::object::send_msg {
		2335	my $pl = shift->contr
		2336	or return;
		2337	$pl->send_msg (@_);
1446	}	2338	}
1447		2339
1448	=item $player_object->may ("access")	2340	=item $player_object->may ("access")
1449		2341
1450	Returns wether the given player is authorized to access resource "access"	2342	Returns wether the given player is authorized to access resource "access"
…		…
1463		2355
1464	=item $player_object->enter_link	2356	=item $player_object->enter_link
1465		2357
1466	Freezes the player and moves him/her to a special map (C<{link}>).	2358	Freezes the player and moves him/her to a special map (C<{link}>).
1467		2359
1468	The player should be reaosnably safe there for short amounts of time. You	2360	The player should be reasonably safe there for short amounts of time. You
1469	I<MUST> call C<leave_link> as soon as possible, though.	2361	I<MUST> call C<leave_link> as soon as possible, though.
1470		2362
		2363	Will never block.
		2364
1471	=item $player_object->leave_link ($map, $x, $y)	2365	=item $player_object->leave_link ($map, $x, $y)
1472		2366
1473	Moves the player out of the specila link map onto the given map. If the	2367	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	2368	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	2369	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	2370	fails, to the emergency map position.
1477		2371
1478	Might block.	2372	Might block.
1479		2373
1480	=cut	2374	=cut
		2375
		2376	sub link_map {
		2377	unless ($LINK_MAP) {
		2378	$LINK_MAP = cf::map::find "{link}"
		2379	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2380	$LINK_MAP->load;
		2381	}
		2382
		2383	$LINK_MAP
		2384	}
1481		2385
1482	sub cf::object::player::enter_link {	2386	sub cf::object::player::enter_link {
1483	my ($self) = @_;	2387	my ($self) = @_;
1484		2388
1485	$self->deactivate_recursive;	2389	$self->deactivate_recursive;
1486		2390
1487	return if $self->map == $LINK_MAP;	2391	return if UNIVERSAL::isa $self->map, "ext::map_link";
1488		2392
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2393	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	2394	if $self->map && $self->map->{path} ne "{link}";
1491		2395
1492	$self->enter_map ($LINK_MAP, 20, 20);	2396	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1493	}	2397	}
1494		2398
1495	sub cf::object::player::leave_link {	2399	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	2400	my ($self, $map, $x, $y) = @_;
		2401
		2402	return unless $self->contr->active;
1497		2403
1498	my $link_pos = delete $self->{_link_pos};	2404	my $link_pos = delete $self->{_link_pos};
1499		2405
1500	unless ($map) {	2406	unless ($map) {
1501	# restore original map position	2407	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	2408	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	2409	$map = cf::map::find $map;
1504		2410
1505	unless ($map) {	2411	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	2412	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	2413	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	2414	or die "FATAL: cannot load emergency map\n";
1509	}	2415	}
1510	}	2416	}
1511		2417
1512	($x, $y) = (-1, -1)	2418	($x, $y) = (-1, -1)
…		…
1515	# use -1 or undef as default coordinates, not 0, 0	2421	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	2422	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	2423	if $x <=0 && $y <= 0;
1518		2424
1519	$map->load;	2425	$map->load;
		2426	$map->load_neighbours;
1520		2427
		2428	return unless $self->contr->active;
1521	$self->activate_recursive;	2429	$self->activate_recursive;
		2430
		2431	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1522	$self->enter_map ($map, $x, $y);	2432	$self->enter_map ($map, $x, $y);
1523	}	2433	}
1524		2434
1525	cf::player->attach (	2435	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1526	on_logout => sub {
1527	my ($pl) = @_;
1528		2436
1529	# abort map switching before logout	2437	Moves the player to the given map-path and coordinates by first freezing
1530	if ($pl->ob->{_link_pos}) {	2438	her, loading and preparing them map, calling the provided $check callback
1531	cf::sync_job {	2439	that has to return the map if sucecssful, and then unfreezes the player on
1532	$pl->ob->leave_link	2440	the new (success) or old (failed) map position. In either case, $done will
1533	};	2441	be called at the end of this process.
1534	}
1535	},
1536	on_login => sub {
1537	my ($pl) = @_;
1538		2442
1539	# try to abort aborted map switching on player login :)
1540	# should happen only on crashes
1541	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;
1543	Coro::async {
1544	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;
1548	};
1549	}
1550	},
1551	);
1552
1553	=item $player_object->goto_map ($path, $x, $y)
1554
1555	=cut	2443	=cut
1556		2444
		2445	our $GOTOGEN;
		2446
1557	sub cf::object::player::goto_map {	2447	sub cf::object::player::goto {
1558	my ($self, $path, $x, $y) = @_;	2448	my ($self, $path, $x, $y, $check, $done) = @_;
		2449
		2450	# do generation counting so two concurrent goto's will be executed in-order
		2451	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1559		2452
1560	$self->enter_link;	2453	$self->enter_link;
1561		2454
1562	(Coro::async {	2455	(async {
1563	$path = new cf::path $path;	2456	# *tag paths override both path and x|y
		2457	if ($path =~ /^\*(.*)$/) {
		2458	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2459	my $ob = $obs[rand @obs];
1564		2460
1565	my $map = cf::map::find_map $path->as_string;	2461	# see if we actually can go there
		2462	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2463	$ob = $obs[rand @obs];
		2464	} else {
		2465	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2466	}
		2467	# else put us there anyways for now #d#
		2468
		2469	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2470	} else {
		2471	($path, $x, $y) = (undef, undef, undef);
		2472	}
		2473	}
		2474
		2475	my $map = eval {
		2476	my $map = defined $path ? cf::map::find $path : undef;
		2477
		2478	if ($map) {
1566	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
1567		2480	$map = $check->($map) if $check && $map;
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	2481	} else {
1569	# if $map;
1570
1571	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2482	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
1572		2484
		2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
		2491	}
		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1573	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1574	})->prio (1);	2499	})->prio (1);
1575	}	2500	}
1576		2501
1577	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1578		2503
…		…
1580		2505
1581	sub parse_random_map_params {	2506	sub parse_random_map_params {
1582	my ($spec) = @_;	2507	my ($spec) = @_;
1583		2508
1584	my $rmp = { # defaults	2509	my $rmp = { # defaults
1585	xsize => 10,	2510	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	2511	ysize => (cf::rndm 15, 40),
		2512	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2513	#layout => string,
1587	};	2514	};
1588		2515
1589	for (split /\n/, $spec) {	2516	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	2517	my ($k, $v) = split /\s+/, $_, 2;
1591		2518
…		…
1595	$rmp	2522	$rmp
1596	}	2523	}
1597		2524
1598	sub prepare_random_map {	2525	sub prepare_random_map {
1599	my ($exit) = @_;	2526	my ($exit) = @_;
		2527
		2528	my $guard = cf::lock_acquire "exit_prepare:$exit";
1600		2529
1601	# all this does is basically replace the /! path by	2530	# all this does is basically replace the /! path by
1602	# a new random map path (?random/...) with a seed	2531	# a new random map path (?random/...) with a seed
1603	# that depends on the exit object	2532	# that depends on the exit object
1604		2533
1605	my $rmp = parse_random_map_params $exit->msg;	2534	my $rmp = parse_random_map_params $exit->msg;
1606		2535
1607	if ($exit->map) {	2536	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	2537	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	2538	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	2539	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2540	$rmp->{origin_y} = $exit->y;
1612	}	2541	}
1613		2542
1614	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1615		2544
1616	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1617	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
		2547	my $meta = "$RANDOMDIR/$md5.meta";
1618		2548
1619	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1620	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
		2551	undef $fh;
		2552	aio_rename "$meta~", $meta;
1621		2553
1622	$exit->slaying ("?random/$md5");	2554	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2555	$exit->msg (undef);
1624	}	2556	}
1625	}	2557	}
…		…
1627	sub cf::object::player::enter_exit {	2559	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2560	my ($self, $exit) = @_;
1629		2561
1630	return unless $self->type == cf::PLAYER;	2562	return unless $self->type == cf::PLAYER;
1631		2563
		2564	if ($exit->slaying eq "/!") {
		2565	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2566	# the problem is that $exit might not survive long enough
		2567	# so it needs to be done right now, right here
		2568	cf::sync_job { prepare_random_map $exit };
		2569	}
		2570
		2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2572	my $hp = $exit->stats->hp;
		2573	my $sp = $exit->stats->sp;
		2574
1632	$self->enter_link;	2575	$self->enter_link;
1633		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
		2580
1634	(Coro::async {	2581	(async {
		2582	$self->deactivate_recursive; # just to be sure
1635	unless (eval {	2583	unless (eval {
1636		2584	$self->goto ($slaying, $hp, $sp);
1637	prepare_random_map $exit
1638	if $exit->slaying eq "/!";
1639
1640	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1642		2585
1643	1;	2586	1;
1644	}) {	2587	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2588	$self->message ("Something went wrong deep within the crossfire server. "
1646	. "I'll try to bring you back to the map you were before. "	2589	. "I'll try to bring you back to the map you were before. "
1647	. "Please report this to the dungeon master",	2590	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2591	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2592
1650	warn "ERROR in enter_exit: $@";	2593	warn "ERROR in enter_exit: $@";
1651	$self->leave_link;	2594	$self->leave_link;
1652	}	2595	}
1653	})->prio (1);	2596	})->prio (1);
…		…
1666		2609
1667	sub cf::client::send_drawinfo {	2610	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2611	my ($self, $text, $flags) = @_;
1669		2612
1670	utf8::encode $text;	2613	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2615	}
1673		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
		2698	=item $client->ext_msg ($type, @msg)
		2699
		2700	Sends an ext event to the client.
		2701
		2702	=cut
		2703
		2704	sub cf::client::ext_msg($$@) {
		2705	my ($self, $type, @msg) = @_;
		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
		2710	push @msg, msgtype => "event_$type";
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
		2731	}
1674		2732
1675	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
1676		2734
1677	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
1678	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1679	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1680		2738
1681	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
1682	reliable at some point in the future.	2740	become reliable at some point in the future.
1683		2741
1684	=cut	2742	=cut
1685		2743
1686	sub cf::client::query {	2744	sub cf::client::query {
1687	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
1695	utf8::encode $text;	2753	utf8::encode $text;
1696	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1697		2755
1698	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
1699	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
1700	}	2760	}
1701		2761
1702	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
1703	on_reply => sub {	2768	on_reply => sub {
1704	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
1705		2770
1706	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
1707	# get handled first	2772	# get handled first
1708	my $queue = delete $ns->{query_queue};	2773	my $queue = delete $ns->{query_queue}
		2774	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		2775
1710	(shift @$queue)->[1]->($msg);	2776	(shift @$queue)->[1]->($msg);
		2777	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		2778
1712	push @{ $ns->{query_queue} }, @$queue;	2779	push @{ $ns->{query_queue} }, @$queue;
1713		2780
1714	if (@{ $ns->{query_queue} } == @$queue) {	2781	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	2782	if (@$queue) {
…		…
1717	} else {	2784	} else {
1718	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1719	}	2786	}
1720	}	2787	}
1721	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
1722	);	2815	);
1723		2816
1724	=item $client->coro (\&cb)	2817	=item $client->async (\&cb)
1725		2818
1726	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	2820	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	2821	or loss of connection).
1729		2822
1730	=cut	2823	=cut
1731		2824
1732	sub cf::client::coro {	2825	sub cf::client::async {
1733	my ($self, $cb) = @_;	2826	my ($self, $cb) = @_;
1734		2827
1735	my $coro; $coro = async {	2828	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		2829
1742	$coro->on_destroy (sub {	2830	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	2831	delete $self->{_coro}{$coro+0};
1744	});	2832	});
1745		2833
…		…
1772	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
1773	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
1774		2862
1775	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
1776		2864
1777	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
1778		2870
1779	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
1780		2872
1781	=pod	2873	=pod
1782		2874
1783	The following fucntions and emthods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
1784		2876
1785	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
1786	cf::object::player player	2881	cf::object::player
1787	cf::player peaceful	2882	player
1788	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
1789		2889
1790	=cut	2890	=cut
1791		2891
1792	for (	2892	for (
1793	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
1794	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
1795	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
1796	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
1797	) {	2899	) {
1798	no strict 'refs';	2900	no strict 'refs';
…		…
1869	=back	2971	=back
1870		2972
1871	=cut	2973	=cut
1872		2974
1873	#############################################################################	2975	#############################################################################
		2976	# the server's init and main functions
1874		2977
1875	=head2 EXTENSION DATABASE SUPPORT	2978	sub load_facedata($) {
		2979	my ($path) = @_;
1876		2980
1877	Crossfire maintains a very simple database for extension use. It can	2981	# HACK to clear player env face cache, we need some signal framework
1878	currently store anything that can be serialised using Storable, which	2982	# for this (global event?)
1879	excludes objects.	2983	%ext::player_env::MUSIC_FACE_CACHE = ();
1880		2984
1881	The parameter C<$family> should best start with the name of the extension	2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1882	using it, it should be unique.
1883		2986
1884	=over 4	2987	warn "loading facedata from $path\n";
1885		2988
1886	=item $hashref = cf::db_get $family	2989	my $facedata;
		2990	0 < aio_load $path, $facedata
		2991	or die "$path: $!";
1887		2992
1888	Return a hashref for use by the extension C<$family>, which can be	2993	$facedata = Coro::Storable::thaw $facedata;
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891		2994
1892	=item $value = cf::db_get $family => $key	2995	$facedata->{version} == 2
		2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893		2997
1894	Returns a single value from the database	2998	# patch in the exptable
1895		2999	$facedata->{resource}{"res/exp_table"} = {
1896	=item cf::db_put $family => $hashref	3000	type => FT_RSRC,
1897		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1898	Stores the given family hashref into the database. Updates are delayed, if
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1900
1901	=item cf::db_put $family => $key => $value
1902
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913
1914	=cut
1915
1916	our $DB;
1917
1918	{
1919	my $path = cf::localdir . "/database.pst";
1920
1921	sub db_load() {
1922	$DB = stat $path ? Storable::retrieve $path : { };
1923	}
1924
1925	my $pid;
1926
1927	sub db_save() {
1928	waitpid $pid, 0 if $pid;
1929	if (0 == ($pid = fork)) {
1930	$DB->{_meta}{version} = 1;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});	3002	};
		3003	cf::cede_to_tick;
1947		3004
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}	3005	{
		3006	my $faces = $facedata->{faceinfo};
1952		3007
1953	sub db_get($;$) {	3008	while (my ($face, $info) = each %$faces) {
1954	@_ >= 2	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1955	? $DB->{$_[0]}{$_[1]}	3010	cf::face::set_visibility $idx, $info->{visibility};
1956	: ($DB->{$_[0]} ||= { })	3011	cf::face::set_magicmap $idx, $info->{magicmap};
1957	}	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1958		3014
1959	sub db_put($$;$) {	3015	cf::cede_to_tick;
1960	if (@_ >= 3) {
1961	$DB->{$_[0]}{$_[1]} = $_[2];
1962	} else {
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967
1968	cf::global->attach (
1969	prio => 10000,
1970	on_cleanup => sub {
1971	db_sync;
1972	},	3016	}
1973	);
1974	}
1975		3017
1976	#############################################################################	3018	while (my ($face, $info) = each %$faces) {
1977	# the server's main()	3019	next unless $info->{smooth};
		3020	my $idx = cf::face::find $face
		3021	or next;
		3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
		3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3025	} else {
		3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3027	}
1978		3028
1979	sub cfg_load {	3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
		3093	1
		3094	}
		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
		3138	sub reload_resources {
		3139	warn "reloading resource files...\n";
		3140
		3141	reload_regions;
		3142	reload_facedata;
		3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
		3148	}
		3149
		3150	sub init {
		3151	reload_resources;
		3152	}
		3153
		3154	sub reload_config {
1980	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
1981	or return;	3156	or return;
1982		3157
1983	local $/;	3158	local $/;
1984	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
		3160
		3161	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3162
		3163	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3164	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3165
		3166	if (exists $CFG{mlockall}) {
		3167	eval {
		3168	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3169	and die "WARNING: m(un)lockall failed: $!\n";
		3170	};
		3171	warn $@ if $@;
		3172	}
1985	}	3173	}
1986		3174
1987	sub main {	3175	sub main {
1988	# we must not ever block the main coroutine	3176	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	3177	local $Coro::idle = sub {
1990	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3178	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1991	(Coro::unblock_sub {	3179	(async {
1992	Event::one_event;	3180	Event::one_event;
1993	})->();	3181	})->prio (Coro::PRIO_MAX);
1994	};	3182	};
1995		3183
1996	cfg_load;	3184	reload_config;
1997	db_load;	3185	db_init;
1998	load_extensions;	3186	load_extensions;
		3187
		3188	$TICK_WATCHER->start;
1999	Event::loop;	3189	Event::loop;
2000	}	3190	}
2001		3191
2002	#############################################################################	3192	#############################################################################
2003	# initialisation	3193	# initialisation and cleanup
2004		3194
		3195	# install some emergency cleanup handlers
		3196	BEGIN {
		3197	for my $signal (qw(INT HUP TERM)) {
		3198	Event->signal (
		3199	reentrant => 0,
		3200	data => WF_AUTOCANCEL,
		3201	signal => $signal,
		3202	prio => 0,
		3203	cb => sub {
		3204	cf::cleanup "SIG$signal";
		3205	},
		3206	);
		3207	}
		3208	}
		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
		3248	sub emergency_save() {
		3249	my $freeze_guard = cf::freeze_mainloop;
		3250
		3251	warn "enter emergency perl save\n";
		3252
		3253	cf::sync_job {
		3254	# use a peculiar iteration method to avoid tripping on perl
		3255	# refcount bugs in for. also avoids problems with players
		3256	# and maps saved/destroyed asynchronously.
		3257	warn "begin emergency player save\n";
		3258	for my $login (keys %cf::PLAYER) {
		3259	my $pl = $cf::PLAYER{$login} or next;
		3260	$pl->valid or next;
		3261	$pl->save;
		3262	}
		3263	warn "end emergency player save\n";
		3264
		3265	warn "begin emergency map save\n";
		3266	for my $path (keys %cf::MAP) {
		3267	my $map = $cf::MAP{$path} or next;
		3268	$map->valid or next;
		3269	$map->save;
		3270	}
		3271	warn "end emergency map save\n";
		3272
		3273	warn "begin emergency database checkpoint\n";
		3274	BDB::db_env_txn_checkpoint $DB_ENV;
		3275	warn "end emergency database checkpoint\n";
		3276	};
		3277
		3278	warn "leave emergency perl save\n";
		3279	}
		3280
		3281	sub post_cleanup {
		3282	my ($make_core) = @_;
		3283
		3284	warn Carp::longmess "post_cleanup backtrace"
		3285	if $make_core;
		3286	}
		3287
2005	sub reload() {	3288	sub do_reload_perl() {
2006	# can/must only be called in main	3289	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2008	warn "can only reload from main coroutine\n";	3291	warn "can only reload from main coroutine";
2009	return;	3292	return;
2010	}	3293	}
2011		3294
2012	warn "reloading...";	3295	warn "reloading...";
2013		3296
2014	local $FREEZE = 1;	3297	warn "entering sync_job";
		3298
		3299	cf::sync_job {
		3300	cf::write_runtime; # external watchdog should not bark
2015	cf::emergency_save;	3301	cf::emergency_save;
		3302	cf::write_runtime; # external watchdog should not bark
2016		3303
2017	eval {	3304	warn "syncing database to disk";
		3305	BDB::db_env_txn_checkpoint $DB_ENV;
		3306
2018	# if anything goes wrong in here, we should simply crash as we already saved	3307	# if anything goes wrong in here, we should simply crash as we already saved
2019		3308
2020	# cancel all watchers	3309	warn "cancelling all WF_AUTOCANCEL watchers";
2021	for (Event::all_watchers) {	3310	for (Event::all_watchers) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;	3311	$_->cancel if $_->data & WF_AUTOCANCEL;
2023	}	3312	}
2024		3313
		3314	warn "flushing outstanding aio requests";
		3315	for (;;) {
		3316	BDB::flush;
		3317	IO::AIO::flush;
		3318	Coro::cede;
		3319	last unless IO::AIO::nreqs || BDB::nreqs;
		3320	warn "iterate...";
		3321	}
		3322
		3323	++$RELOAD;
		3324
2025	# cancel all extension coros	3325	warn "cancelling all extension coros";
2026	$_->cancel for values %EXT_CORO;	3326	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();	3327	%EXT_CORO = ();
2028		3328
2029	# unload all extensions	3329	warn "removing commands";
2030	for (@exts) {	3330	%COMMAND = ();
		3331
		3332	warn "removing ext/exti commands";
		3333	%EXTCMD = ();
		3334	%EXTICMD = ();
		3335
		3336	warn "unloading/nuking all extensions";
		3337	for my $pkg (@EXTS) {
2031	warn "unloading <$_>";	3338	warn "... unloading $pkg";
2032	unload_extension $_;	3339
		3340	if (my $cb = $pkg->can ("unload")) {
		3341	eval {
		3342	$cb->($pkg);
		3343	1
		3344	} or warn "$pkg unloaded, but with errors: $@";
2033	}	3345	}
2034		3346
		3347	warn "... nuking $pkg";
		3348	Symbol::delete_package $pkg;
		3349	}
		3350
2035	# unload all modules loaded from $LIBDIR	3351	warn "unloading all perl modules loaded from $LIBDIR";
2036	while (my ($k, $v) = each %INC) {	3352	while (my ($k, $v) = each %INC) {
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3353	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2038		3354
2039	warn "removing <$k>";	3355	warn "... unloading $k";
2040	delete $INC{$k};	3356	delete $INC{$k};
2041		3357
2042	$k =~ s/\.pm$//;	3358	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;	3359	$k =~ s/\//::/g;
2044		3360
…		…
2047	}	3363	}
2048		3364
2049	Symbol::delete_package $k;	3365	Symbol::delete_package $k;
2050	}	3366	}
2051		3367
2052	# sync database to disk
2053	cf::db_sync;
2054	IO::AIO::flush;
2055
2056	# get rid of safe::, as good as possible	3368	warn "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2058	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059		3371
2060	# remove register_script_function callbacks
2061	# TODO
2062
2063	# unload cf.pm "a bit"	3372	warn "unloading cf.pm \"a bit\"";
2064	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2065		3375
2066	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2067	# and global variables created in xs	3377	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2069		3379
2070	# reload cf.pm	3380	warn "unload completed, starting to reload now";
		3381
2071	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2072	require cf;	3383	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2074		3385
2075	# load config and database again	3386	warn "loading config and database again";
2076	cf::cfg_load;	3387	cf::reload_config;
2077	cf::db_load;
2078		3388
2079	# load extensions
2080	warn "load extensions";	3389	warn "loading extensions";
2081	cf::load_extensions;	3390	cf::load_extensions;
2082		3391
2083	# reattach attachments to objects	3392	warn "reattaching attachments to objects/players";
2084	warn "reattach";	3393	_global_reattach; # objects, sockets
2085	_global_reattach;	3394	warn "reattaching attachments to maps";
2086	};	3395	reattach $_ for values %MAP;
		3396	warn "reattaching attachments to players";
		3397	reattach $_ for values %PLAYER;
2087		3398
2088	if ($@) {	3399	warn "leaving sync_job";
		3400
		3401	1
		3402	} or do {
2089	warn $@;	3403	warn $@;
2090	warn "error while reloading, exiting.";	3404	warn "error while reloading, exiting.";
2091	exit 1;	3405	exit 1;
2092	}	3406	};
2093		3407
2094	warn "reloaded successfully";	3408	warn "reloaded";
2095	};	3409	};
2096		3410
2097	#############################################################################	3411	our $RELOAD_WATCHER; # used only during reload
2098		3412
2099	unless ($LINK_MAP) {	3413	sub reload_perl() {
2100	$LINK_MAP = cf::map::new;	3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
2101		3416
2102	$LINK_MAP->width (41);	3417	$RELOAD_WATCHER ||= Event->timer (
2103	$LINK_MAP->height (41);	3418	reentrant => 0,
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,	3419	after => 0,
		3420	data => WF_AUTOCANCEL,
2112	cb => sub {	3421	cb => sub {
2113	$_[0]->w->cancel;	3422	do_reload_perl;
2114		3423	undef $RELOAD_WATCHER;
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});	3424	},
2133		3425	);
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	3426	}
2139
2140	register "<global>", __PACKAGE__;
2141		3427
2142	register_command "reload" => sub {	3428	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2144		3430
2145	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	3432	$who->message ("reloading server.");
		3433	async { reload_perl };
2149	}	3434	}
2150	};	3435	};
2151		3436
2152	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
		3438
		3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
2153		3461
2154	$TICK_WATCHER = Event->timer (	3462	$TICK_WATCHER = Event->timer (
2155	reentrant => 0,	3463	reentrant => 0,
		3464	parked => 1,
2156	prio => 0,	3465	prio => 0,
2157	at => $NEXT_TICK || $TICK,	3466	at => $NEXT_TICK || $TICK,
2158	data => WF_AUTOCANCEL,	3467	data => WF_AUTOCANCEL,
2159	cb => sub {	3468	cb => sub {
2160	unless ($FREEZE) {	3469	if ($Coro::current != $Coro::main) {
		3470	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3471	unless ++$bug_warning > 10;
		3472	return;
		3473	}
		3474
		3475	$NOW = $tick_start = Event::time;
		3476
2161	cf::server_tick; # one server iteration	3477	cf::server_tick; # one server iteration
		3478
2162	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2163	}
2164
2165	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2166		3481
		3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3484	Coro::async_pool {
		3485	write_runtime
		3486	or warn "ERROR: unable to write runtime file: $!";
		3487	};
		3488	}
		3489
		3490	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3491	$sig->send;
		3492	}
		3493	while (my $sig = shift @WAIT_FOR_TICK) {
		3494	$sig->send;
		3495	}
		3496
		3497	$NOW = Event::time;
		3498
2167	# if we are delayed by four ticks or more, skip them all	3499	# if we are delayed by four ticks or more, skip them all
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3500	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2169		3501
2170	$TICK_WATCHER->at ($NEXT_TICK);	3502	$TICK_WATCHER->at ($NEXT_TICK);
2171	$TICK_WATCHER->start;	3503	$TICK_WATCHER->start;
		3504
		3505	$LOAD = ($NOW - $tick_start) / $TICK;
		3506	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3507
		3508	_post_tick;
2172	},	3509	},
2173	);	3510	);
2174		3511
		3512	{
		3513	BDB::min_parallel 8;
2175	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2176		3515	$BDB_POLL_WATCHER = Event->io (
2177	Event->io (	3516	reentrant => 0,
2178	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2179	poll => 'r',	3518	poll => 'r',
2180	prio => 5,	3519	prio => 0,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
		3521	cb => \&BDB::poll_cb,
		3522	);
		3523
		3524	BDB::set_sync_prepare {
		3525	my $status;
		3526	my $current = $Coro::current;
		3527	(
		3528	sub {
		3529	$status = $!;
		3530	$current->ready; undef $current;
		3531	},
		3532	sub {
		3533	Coro::schedule while defined $current;
		3534	$! = $status;
		3535	},
		3536	)
		3537	};
		3538
		3539	unless ($DB_ENV) {
		3540	$DB_ENV = BDB::db_env_create;
		3541	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3542	| BDB::LOG_AUTOREMOVE, 1);
		3543	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3544	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3545
		3546	cf::sync_job {
		3547	eval {
		3548	BDB::db_env_open
		3549	$DB_ENV,
		3550	$BDBDIR,
		3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3553	0666;
		3554
		3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_DEADLOCK_WATCHER = Event->timer (
2187	after => 0,	3563	after => 3,
2188	interval => 10,	3564	interval => 1,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2189	cb => sub {	3568	cb => sub {
2190	(Coro::unblock_sub {	3569	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2191	write_runtime	3570	},
2192	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3573	after => 11,
		3574	interval => 60,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3580	},
		3581	);
		3582	$BDB_TRICKLE_WATCHER = Event->timer (
		3583	after => 5,
		3584	interval => 10,
		3585	hard => 1,
		3586	prio => 0,
		3587	data => WF_AUTOCANCEL,
		3588	cb => sub {
		3589	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3590	},
		3591	);
		3592	}
		3593
		3594	{
		3595	IO::AIO::min_parallel 8;
		3596
		3597	undef $Coro::AIO::WATCHER;
		3598	IO::AIO::max_poll_time $TICK * 0.1;
		3599	$AIO_POLL_WATCHER = Event->io (
		3600	reentrant => 0,
		3601	data => WF_AUTOCANCEL,
		3602	fd => IO::AIO::poll_fileno,
		3603	poll => 'r',
		3604	prio => 6,
		3605	cb => \&IO::AIO::poll_cb,
		3606	);
		3607	}
		3608
		3609	my $_log_backtrace;
		3610
		3611	sub _log_backtrace {
		3612	my ($msg, @addr) = @_;
		3613
		3614	$msg =~ s/\n//;
		3615
		3616	# limit the # of concurrent backtraces
		3617	if ($_log_backtrace < 2) {
		3618	++$_log_backtrace;
		3619	async {
		3620	my @bt = fork_call {
		3621	@addr = map { sprintf "%x", $_ } @addr;
		3622	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3623	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3624	or die "addr2line: $!";
		3625
		3626	my @funcs;
		3627	my @res = <$fh>;
		3628	chomp for @res;
		3629	while (@res) {
		3630	my ($func, $line) = splice @res, 0, 2, ();
		3631	push @funcs, "[$func] $line";
		3632	}
		3633
		3634	@funcs
		3635	};
		3636
		3637	LOG llevInfo, "[ABT] $msg\n";
		3638	LOG llevInfo, "[ABT] $_\n" for @bt;
		3639	--$_log_backtrace;
2193	})->();	3640	};
		3641	} else {
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] [suppressed]\n";
2194	},	3644	}
2195	);	3645	}
		3646
		3647	# load additional modules
		3648	use cf::pod;
2196		3649
2197	END { cf::emergency_save }	3650	END { cf::emergency_save }
2198		3651
2199	1	3652	1
2200		3653

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