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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.376 by root, Mon Oct 1 00:44:44 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 $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		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 $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	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
90	every server tick.	136	every server tick.
91		137
92	=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
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	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.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		206
133	# 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
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	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	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		264
184	=item my $guard = cf::guard { BLOCK }	265	sub to_json ($) { $json_coder->encode ($_[0]) }
185		266	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		267
206	=item cf::lock_wait $string	268	=item cf::lock_wait $string
207		269
208	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
209		271
210	=item my $lock = cf::lock_acquire $string	272	=item my $lock = cf::lock_acquire $string
211		273
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
215	returned.	277	returned.
216		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
217	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
219		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
220	=cut	289	=cut
221		290
222	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
223		293
224	sub lock_wait($) {	294	sub lock_wait($) {
225	my ($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#
226		301
227	# wait for lock, if any	302	# wait for lock, if any
228	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;	305	Coro::schedule;
…		…
236		311
237	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
238	lock_wait $key;	313	lock_wait $key;
239		314
240	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
241		317
242	cf::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
243	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
245	}	322	}
246	}	323	}
247		324
248	=item cf::async { BLOCK }	325	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	326	my ($key) = @_;
257		327
258	Coro::async {	328	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	329	}
263		330
264	sub freeze_mainloop {	331	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
266		333
267	my $guard = guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
268	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
269	$guard	338	$guard
270	}	339	}
271		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
272	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
273		410
274	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
277		415
278	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
281	fast or be very important.	419	fast or be very important.
…		…
284		422
285	sub sync_job(&) {	423	sub sync_job(&) {
286	my ($job) = @_;	424	my ($job) = @_;
287		425
288	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
289	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
291		431
292	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	433	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	434	my $freeze_guard = freeze_mainloop;
295		435
296	my $busy = 1;	436	my $busy = 1;
297	my @res;	437	my @res;
298		438
299	(Coro::async {	439	(async {
		440	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	441	@res = eval { $job->() };
301	warn $@ if $@;	442	warn $@ if $@;
302	undef $busy;	443	undef $busy;
303	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
304		445
305	while ($busy) {	446	while ($busy) {
306	Coro::cede_notself;	447	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
309		456
310	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
311	} else {	458	} else {
312	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
313		460
314	$job->()	461	$job->()
315	}	462	}
316	}	463	}
317		464
318	=item $coro = cf::coro { BLOCK }	465	=item $coro = cf::async_ext { BLOCK }
319		466
320	Creates and returns a new coro. This coro is automcatially being canceled	467	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	468	extension calling this is being unloaded.
322		469
323	=cut	470	=cut
324		471
325	sub coro(&) {	472	sub async_ext(&) {
326	my $cb = shift;	473	my $cb = shift;
327		474
328	my $coro = &cf::async ($cb);	475	my $coro = &Coro::async ($cb);
329		476
330	$coro->on_destroy (sub {	477	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	478	delete $EXT_CORO{$coro+0};
332	});	479	});
333	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
334		481
335	$coro	482	$coro
336	}	483	}
337		484
338	sub write_runtime {	485	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		486
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	487	Executes the given code block with the given arguments in a seperate
342	or return;	488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
343		491
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	492	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		493
348	aio_fsync $fh	494	sub fork_call(&@) {
349	and return;	495	my ($cb, @args) = @_;
350		496
351	close $fh	497	# we seemingly have to make a local copy of the whole thing,
352	or return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
353		500
354	aio_rename "$runtime~", $runtime	501	my @res = Coro::Util::fork_eval {
355	and return;	502	reset_signals;
		503	&$cb
		504	}, @args;
356		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
357	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	645	}
359		646
360	=back	647	=back
361		648
362	=cut	649	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		650
484	#############################################################################	651	#############################################################################
485		652
486	=head2 ATTACHABLE OBJECTS	653	=head2 ATTACHABLE OBJECTS
487		654
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
491		658
492	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	661	Crossfire TRT).
495		662
496	=over 4	663	=over 4
497		664
498	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
499		666
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	781	our @CB_MAP = ();
615		782
616	my %attachment;	783	my %attachment;
617		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
		790
618	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
620		793
621	use sort 'stable';	794	use sort 'stable';
622		795
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
657		830
658	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		835
663	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	837	my $pkg = shift @arg;
665		838
666	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
696	}	869	}
697		870
698	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
699	} else {	872	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	874	}
702		875
703	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
704	}	877	}
705		878
…		…
707	if (ref $_[0]) {	880	if (ref $_[0]) {
708	_object_attach @_;	881	_object_attach @_;
709	} else {	882	} else {
710	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
711	}	884	}
		885	_recalc_want;
712	};	886	};
713		887
714	# all those should be optimised	888	# all those should be optimised
715	sub cf::attachable::detach {	889	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
720	reattach ($obj);	894	reattach ($obj);
721	} else {	895	} else {
722	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
723	}	897	}
		898	_recalc_want;
724	};	899	};
725		900
726	sub cf::attachable::attached {	901	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
728		903
…		…
743	";	918	";
744	die if $@;	919	die if $@;
745	}	920	}
746		921
747	our $override;	922	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		924
750	sub override {	925	sub override {
751	$override = 1;	926	$override = 1;
752	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
753	}	928	}
754		929
755	sub do_invoke {	930	sub do_invoke {
756	my $event = shift;	931	my $event = shift;
757	my $callbacks = shift;	932	my $callbacks = shift;
758		933
759	@invoke_results = ();	934	@INVOKE_RESULTS = ();
760		935
761	local $override;	936	local $override;
762		937
763	for (@$callbacks) {	938	for (@$callbacks) {
764	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
781		956
782	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
783		958
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
785	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		962
788	=back	963	=back
789		964
790	=cut	965	=cut
791		966
792	#############################################################################	967	#############################################################################
793	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
794		980
795	sub reattach {	981	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		986
799	my $registry = $obj->registry;	987	my $registry = $obj->registry;
800		988
801	@$registry = ();	989	@$registry = ();
802		990
…		…
843	sub object_freezer_save {	1031	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
845		1033
846	sync_job {	1034	sync_job {
847	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
850		1039
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1043	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1044	close $fh;
856		1045
857	if (@$objs) {	1046	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1050	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1051	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1052	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1053	aio_rename "$filename.pst~", "$filename.pst";
865	}	1054	}
866	} else {	1055	} else {
867	aio_unlink "$filename.pst";	1056	aio_unlink "$filename.pst";
…		…
873	}	1062	}
874	} else {	1063	} else {
875	aio_unlink $filename;	1064	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
877	}	1066	}
878	}	1067	};
879	}	1068	}
880		1069
881	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
883		1072
…		…
895	or return;	1084	or return;
896		1085
897	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
899	or return;	1088	or return;
		1089
900	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1091	}
902		1092
		1093	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1094	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1095	$decname, length $data, scalar @{$av || []};
		1096
905	return ($data, $av);	1097	($data, $av)
906	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
907		1105
908	#############################################################################	1106	#############################################################################
909	# command handling &c	1107	# command handling &c
910		1108
911	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1123	}
926		1124
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1126
929	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
930		1132
931	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
932	called.	1134	called.
933		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
934	=cut	1147	=cut
935		1148
936	sub register_extcmd {	1149	sub register_extcmd {
937	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
938		1151
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
943	}	1159	}
944		1160
945	cf::player->attach (	1161	cf::player->attach (
946	on_command => sub {	1162	on_command => sub {
947	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1172	cf::override;
957	},	1173	},
958	on_extcmd => sub {	1174	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
960		1176
961	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1178
963	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
969	} else {	1194	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1196	}
972		1197
973	cf::override;	1198	cf::override;
974	},	1199	},
975	);	1200	);
976		1201
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
		1206	for my $path (<$LIBDIR/*.ext>) {
		1207	next unless -r $path;
		1208
		1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
		1266	}
		1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
		1272	};
		1273	}
		1274
		1275	#############################################################################
		1276
		1277	=back
		1278
		1279	=head2 CORE EXTENSIONS
		1280
		1281	Functions and methods that extend core crossfire objects.
		1282
		1283	=cut
		1284
		1285	package cf::player;
		1286
		1287	use Coro::AIO;
		1288
		1289	=head3 cf::player
		1290
		1291	=over 4
		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
		1307	=item cf::player::find $login
		1308
		1309	Returns the given player object, loading it if necessary (might block).
		1310
		1311	=cut
		1312
		1313	sub playerdir($) {
		1314	"$PLAYERDIR/"
		1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1316	}
		1317
		1318	sub path($) {
		1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1320
		1321	(playerdir $login) . "/playerdata"
		1322	}
		1323
		1324	sub find_active($) {
		1325	$cf::PLAYER{$_[0]}
		1326	and $cf::PLAYER{$_[0]}->active
		1327	and $cf::PLAYER{$_[0]}
		1328	}
		1329
		1330	sub exists($) {
		1331	my ($login) = @_;
		1332
		1333	$cf::PLAYER{$login}
		1334	or cf::sync_job { !aio_stat path $login }
		1335	}
		1336
		1337	sub find($) {
		1338	return $cf::PLAYER{$_[0]} || do {
		1339	my $login = $_[0];
		1340
		1341	my $guard = cf::lock_acquire "user_find:$login";
		1342
		1343	$cf::PLAYER{$_[0]} || do {
		1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
		1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
		1358	$cf::PLAYER{$login} = $pl
		1359	}
		1360	}
		1361	}
		1362
		1363	sub save($) {
		1364	my ($pl) = @_;
		1365
		1366	return if $pl->{deny_save};
		1367
		1368	my $path = path $pl;
		1369	my $guard = cf::lock_acquire "user_save:$path";
		1370
		1371	return if $pl->{deny_save};
		1372
		1373	aio_mkdir playerdir $pl, 0770;
		1374	$pl->{last_save} = $cf::RUNTIME;
		1375
		1376	$pl->save_pl ($path);
		1377	cf::cede_to_tick;
		1378	}
		1379
		1380	sub new($) {
		1381	my ($login) = @_;
		1382
		1383	my $self = create;
		1384
		1385	$self->ob->name ($login);
		1386	$self->{deny_save} = 1;
		1387
		1388	$cf::PLAYER{$login} = $self;
		1389
		1390	$self
		1391	}
		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
		1403	=item $pl->quit_character
		1404
		1405	Nukes the player without looking back. If logged in, the connection will
		1406	be destroyed. May block for a long time.
		1407
		1408	=cut
		1409
		1410	sub quit_character {
		1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
		1414
		1415	$pl->{deny_save} = 1;
		1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1417
		1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1419	$pl->deactivate;
		1420	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1421	$pl->ns->destroy if $pl->ns;
		1422
		1423	my $path = playerdir $pl;
		1424	my $temp = "$path~$cf::RUNTIME~deleting~";
		1425	aio_rename $path, $temp;
		1426	delete $cf::PLAYER{$pl->ob->name};
		1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
		1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
		1449	}
		1450
		1451	=item cf::player::list_logins
		1452
		1453	Returns am arrayref of all valid playernames in the system, can take a
		1454	while and may block, so not sync_job-capable, ever.
		1455
		1456	=cut
		1457
		1458	sub list_logins {
		1459	my $dirs = aio_readdir $PLAYERDIR
		1460	or return [];
		1461
		1462	my @logins;
		1463
		1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
		1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1470	aio_read $fh, 0, 512, my $buf, 0 or next;
		1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
		1473
		1474	utf8::decode $login;
		1475	push @logins, $login;
		1476	}
		1477
		1478	\@logins
		1479	}
		1480
		1481	=item $player->maps
		1482
		1483	Returns an arrayref of map paths that are private for this
		1484	player. May block.
		1485
		1486	=cut
		1487
		1488	sub maps($) {
		1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
		1492
		1493	my $files = aio_readdir playerdir $pl
		1494	or return;
		1495
		1496	my @paths;
		1497
		1498	for (@$files) {
		1499	utf8::decode $_;
		1500	next if /\.(?:pl|pst)$/;
		1501	next unless /^$PATH_SEP/o;
		1502
		1503	push @paths, cf::map::normalise "~$pl/$_";
		1504	}
		1505
		1506	\@paths
		1507	}
		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
		1560	=item $player->ext_reply ($msgid, @msg)
		1561
		1562	Sends an ext reply to the player.
		1563
		1564	=cut
		1565
		1566	sub ext_reply($$@) {
		1567	my ($self, $id, @msg) = @_;
		1568
		1569	$self->ns->ext_reply ($id, @msg)
		1570	}
		1571
		1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
984	my ($path) = @_;	1599	my ($path) = @_;
985		1600
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1601	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1602
992	warn "loading '$path' into '$pkg'\n";	1603	for my $region (list) {
993		1604	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1605	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1606	if $region->specificity > $specificity;
996		1607	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1608	}
1026		1609
1027	# remove commands	1610	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1611	}
1133		1612
1134	=back	1613	=back
1135
1136		1614
1137	=head3 cf::map	1615	=head3 cf::map
1138		1616
1139	=over 4	1617	=over 4
1140		1618
…		…
1143	package cf::map;	1621	package cf::map;
1144		1622
1145	use Fcntl;	1623	use Fcntl;
1146	use Coro::AIO;	1624	use Coro::AIO;
1147		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
1148	our $MAX_RESET = 3600;	1630	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1631	our $DEFAULT_RESET = 3000;
1150		1632
1151	sub generate_random_map {	1633	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1634	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1635	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1636	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1640	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1641	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1642	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1643	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1644	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1645	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1647	(cf::region::find $rmp->{region}), $rmp->{custom}
		1648	)
		1649	}
		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
		1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
		1673	my ($self, $merge) = @_;
		1674
		1675	# we have to keep some variables in memory intact
		1676	local $self->{path};
		1677	local $self->{load_path};
		1678
		1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
		1683	my ($path, $base) = @_;
		1684
		1685	$path = "$path"; # make sure its a string
		1686
		1687	$path =~ s/\.map$//;
		1688
		1689	# map plan:
		1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
		1697
		1698	$path =~ s/$PATH_SEP/\//go;
		1699
		1700	# treat it as relative path if it starts with
		1701	# something that looks reasonable
		1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1704
		1705	$base =~ s{[^/]+/?$}{};
		1706	$path = "$base/$path";
		1707	}
		1708
		1709	for ($path) {
		1710	redo if s{//}{/};
		1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
		1714
		1715	$path
		1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
1168	}	1776	}
1169		1777
1170	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1171	# all maps in C++...	1779	# all maps in C++...
1172	sub change_all_map_light {	1780	sub change_all_map_light {
…		…
1174		1782
1175	$_->change_map_light ($change)	1783	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1784	for grep $_->outdoor, values %cf::MAP;
1177	}	1785	}
1178		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
1179	sub try_load_header($) {	1803	sub load_header_from($) {
1180	my ($path) = @_;	1804	my ($self, $path) = @_;
1181		1805
1182	utf8::encode $path;	1806	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1184	or return;	1808	or return;
1185		1809
1186	my $map = cf::map::new	1810	$self->_load_header ($f)
1187	or return;	1811	or return;
1188		1812
1189	$map->load_header ($path)	1813	local $MAP_LOADING{$self->{path}} = $self;
		1814	$f->resolve_delayed_derefs;
		1815
		1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
		1857	} else {
		1858	$self->load_header_orig
1190	or return;	1859	or return;
		1860	$self->prepare_orig;
		1861	}
1191		1862
1192	$map->{load_path} = $path;	1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
1193		1865
1194	$map	1866	$self->default_region (cf::region::find_by_path $self->{path})
		1867	unless $self->default_region;
		1868
		1869	1
1195	}	1870	}
1196		1871
1197	sub find;	1872	sub find;
1198	sub find {	1873	sub find {
1199	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1200		1875
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
1206	cf::lock_wait "map_find:$key";	1879	cf::lock_wait "map_find:$path";
1207		1880
1208	$cf::MAP{$key} || do {	1881	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1210		1884
1211	# do it the slow way	1885	my $map = new_from_path cf::map $path
1212	my $map = try_load_header $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1886	or return;
1230		1887
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1888	$map->{last_save} = $cf::RUNTIME;
1243		1889
1244	Coro::cede;	1890	$map->load_header
		1891	or return;
1245		1892
1246	if ($map->should_reset) {	1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1247	$map->reset;	1898	$map->reset;
1248	undef $guard;
1249	$map = find $path	1899	return find $path;
1250	or return;
1251	}	1900	}
1252		1901
1253	$cf::MAP{$key} = $map	1902	$cf::MAP{$path} = $map
1254	}	1903	}
1255	}	1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
1256		1908
1257	sub load {	1909	sub load {
1258	my ($self) = @_;	1910	my ($self) = @_;
1259		1911
		1912	local $self->{deny_reset} = 1; # loading can take a long time
		1913
1260	my $path = $self->{path};	1914	my $path = $self->{path};
		1915
		1916	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1917	my $guard = cf::lock_acquire "map_data:$path";
1262		1918
		1919	return unless $self->valid;
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
1264		1921
1265	$self->in_memory (cf::MAP_LOADING);	1922	$self->in_memory (cf::MAP_LOADING);
1266		1923
1267	$self->alloc;	1924	$self->alloc;
1268	$self->load_objects ($self->{load_path}, 1)	1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1269	or return;	1932	or return;
1270		1933
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1935	if delete $self->{load_original};
1273		1936
1274	if (my $uniq = $path->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1938	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1277	$self->clear_unique_items;	1941	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1279	}	1945	}
1280	}	1946	}
1281		1947
1282	Coro::cede;	1948	$f->resolve_delayed_derefs;
1283		1949
		1950	cf::cede_to_tick;
1284	# now do the right thing for maps	1951	# now do the right thing for maps
1285	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1953	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	1954	unless $self->difficulty;
		1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1297	$self->activate;	1964	$self->activate;
1298	}	1965	}
1299		1966
1300	Coro::cede;	1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
1301		1969
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1970	$self->in_memory (cf::MAP_IN_MEMORY);
		1971	}
		1972
		1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
		1986	}
		1987
		1988	# find and load all maps in the 3x3 area around a map
		1989	sub load_neighbours {
		1990	my ($map) = @_;
		1991
		1992	my @neigh; # diagonal neighbours
		1993
		1994	for (0 .. 3) {
		1995	my $neigh = $map->tile_path ($_)
		1996	or next;
		1997	$neigh = find $neigh, $map
		1998	or next;
		1999	$neigh->load;
		2000
		2001	push @neigh,
		2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2004	}
		2005
		2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
		2008	my $neigh = find $path, $origin
		2009	or next;
		2010	$neigh->load;
		2011	}
1303	}	2012	}
1304		2013
1305	sub find_sync {	2014	sub find_sync {
1306	my ($path, $origin) = @_;	2015	my ($path, $origin) = @_;
1307		2016
1308	cf::sync_job { cf::map::find $path, $origin }	2017	cf::sync_job { find $path, $origin }
1309	}	2018	}
1310		2019
1311	sub do_load_sync {	2020	sub do_load_sync {
1312	my ($map) = @_;	2021	my ($map) = @_;
1313		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
1314	cf::sync_job { $map->load };	2026	cf::sync_job { $map->load };
		2027	}
		2028
		2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
		2043	$MAP_PREFETCHER ||= cf::async {
		2044	$Coro::current->{desc} = "map prefetcher";
		2045
		2046	while (%MAP_PREFETCH) {
		2047	while (my ($k, $v) = each %MAP_PREFETCH) {
		2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
		2052	delete $MAP_PREFETCH{$k};
		2053	}
		2054	}
		2055	undef $MAP_PREFETCHER;
		2056	};
		2057	$MAP_PREFETCHER->prio (6);
		2058
		2059	()
1315	}	2060	}
1316		2061
1317	sub save {	2062	sub save {
1318	my ($self) = @_;	2063	my ($self) = @_;
1319		2064
		2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2066
1320	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1321		2068
1322	return unless $self->dirty;	2069	return unless $self->dirty;
1323		2070
1324	my $save = $self->{path}->save_path; utf8::encode $save;	2071	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		2073
1327	$self->{load_path} = $save;	2074	$self->{load_path} = $save;
1328		2075
1329	return if $self->{deny_save};	2076	return if $self->{deny_save};
1330		2077
1331	local $self->{last_access} = $self->last_access;#d#	2078	local $self->{last_access} = $self->last_access;#d#
1332		2079
		2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
		2082	$_->contr->save for $self->players;
		2083	};
		2084
1333	if ($uniq) {	2085	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	2088	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	2090	}
1339	}	2091	}
1340		2092
1341	sub swap_out {	2093	sub swap_out {
1342	my ($self) = @_;	2094	my ($self) = @_;
1343		2095
1344	# save first because save cedes	2096	# save first because save cedes
1345	$self->save;	2097	$self->save;
		2098
		2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1346		2100
1347	return if $self->players;	2101	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	2103	return if $self->{deny_save};
1350		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1351	$self->clear;	2109	$self->clear;
1352	$self->in_memory (cf::MAP_SWAPPED);
1353	}	2110	}
1354		2111
1355	sub reset_at {	2112	sub reset_at {
1356	my ($self) = @_;	2113	my ($self) = @_;
1357		2114
1358	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1361		2117
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		2120
…		…
1369	my ($self) = @_;	2125	my ($self) = @_;
1370		2126
1371	$self->reset_at <= $cf::RUNTIME	2127	$self->reset_at <= $cf::RUNTIME
1372	}	2128	}
1373		2129
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	2130	sub reset {
1396	my ($self) = @_;	2131	my ($self) = @_;
1397		2132
		2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2134
1398	return if $self->players;	2135	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		2136
1401	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
1402		2148
1403	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1404		2150
		2151	$self->deactivate;
1405	$_->clear_links_to ($self) for values %cf::MAP;	2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
1406		2154
1407	$self->unlink_save;	2155	$self->unlink_save;
1408	$self->destroy;	2156	$self->destroy;
1409	}	2157	}
1410		2158
1411	my $nuke_counter = "aaaa";	2159	my $nuke_counter = "aaaa";
1412		2160
1413	sub nuke {	2161	sub nuke {
1414	my ($self) = @_;	2162	my ($self) = @_;
1415		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
		2167	delete $cf::MAP{$self->path};
		2168
		2169	$self->unlink_save;
		2170
		2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2173	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2174	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2176
		2177	$cf::MAP{$self->path} = $self;
		2178	}
		2179
1419	$self->reset; # polite request, might not happen	2180	$self->reset; # polite request, might not happen
1420	}	2181	}
1421		2182
1422	sub customise_for {	2183	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2184
1425	if ($map->per_player) {	2185	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
1427	}	2191	[
1428		2192	map {
1429	$map	2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
1430	}	2199	}
1431		2200
1432	sub emergency_save {	2201	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2202
1435	warn "enter emergency map save\n";	2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
1436		2205
1437	cf::sync_job {	2206	=cut
1438	warn "begin emergency map save\n";
1439	$_->save for values %cf::MAP;
1440	};
1441		2207
1442	warn "end emergency map save\n";	2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
		2217	}
		2218
		2219	=item cf::map::unique_maps
		2220
		2221	Returns an arrayref of paths of all shared maps that have
		2222	instantiated unique items. May block.
		2223
		2224	=cut
		2225
		2226	sub unique_maps() {
		2227	[
		2228	map {
		2229	utf8::decode $_;
		2230	/\.map$/
		2231	? normalise $_
		2232	: ()
		2233	} @{ aio_readdir $UNIQUEDIR or [] }
		2234	]
1443	}	2235	}
1444		2236
1445	package cf;	2237	package cf;
1446		2238
1447	=back	2239	=back
1448		2240
		2241	=head3 cf::object
		2242
		2243	=cut
		2244
		2245	package cf::object;
		2246
		2247	=over 4
		2248
		2249	=item $ob->inv_recursive
		2250
		2251	Returns the inventory of the object _and_ their inventories, recursively.
		2252
		2253	=cut
		2254
		2255	sub inv_recursive_;
		2256	sub inv_recursive_ {
		2257	map { $_, inv_recursive_ $_->inv } @_
		2258	}
		2259
		2260	sub inv_recursive {
		2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	# temporary compatibility#TODO#remove
		2279	$ref =~ s{^<}{player/<};
		2280
		2281	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2282	my ($uuid, $name) = ($1, $2);
		2283	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2284	or return;
		2285	$pl->ob->uuid eq $uuid
		2286	or return;
		2287
		2288	$pl->ob
		2289	} else {
		2290	warn "$ref: cannot resolve object reference\n";
		2291	undef
		2292	}
		2293	}
		2294
		2295	package cf;
		2296
		2297	=back
1449		2298
1450	=head3 cf::object::player	2299	=head3 cf::object::player
1451		2300
1452	=over 4	2301	=over 4
1453		2302
…		…
1467		2316
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2317	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2318
1470	if ($self->{record_replies}) {	2319	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2320	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2321
1472	} else {	2322	} else {
		2323	my $pl = $self->contr;
		2324
		2325	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2326	my $dialog = $pl->{npc_dialog};
		2327	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2328
		2329	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2330	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2331	$self->message ($msg, $flags);
		2332	}
1475	}	2333	}
		2334	}
		2335
		2336	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2337
		2338	=cut
		2339
		2340	sub cf::object::send_msg {
		2341	my $pl = shift->contr
		2342	or return;
		2343	$pl->send_msg (@_);
1476	}	2344	}
1477		2345
1478	=item $player_object->may ("access")	2346	=item $player_object->may ("access")
1479		2347
1480	Returns wether the given player is authorized to access resource "access"	2348	Returns wether the given player is authorized to access resource "access"
…		…
1493		2361
1494	=item $player_object->enter_link	2362	=item $player_object->enter_link
1495		2363
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2364	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2365
1498	The player should be reaosnably safe there for short amounts of time. You	2366	The player should be reasonably safe there for short amounts of time. You
1499	I<MUST> call C<leave_link> as soon as possible, though.	2367	I<MUST> call C<leave_link> as soon as possible, though.
1500		2368
		2369	Will never block.
		2370
1501	=item $player_object->leave_link ($map, $x, $y)	2371	=item $player_object->leave_link ($map, $x, $y)
1502		2372
1503	Moves the player out of the specila link map onto the given map. If the	2373	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2374	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2375	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2376	fails, to the emergency map position.
1507		2377
1508	Might block.	2378	Might block.
1509		2379
1510	=cut	2380	=cut
		2381
		2382	sub link_map {
		2383	unless ($LINK_MAP) {
		2384	$LINK_MAP = cf::map::find "{link}"
		2385	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2386	$LINK_MAP->load;
		2387	}
		2388
		2389	$LINK_MAP
		2390	}
1511		2391
1512	sub cf::object::player::enter_link {	2392	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2393	my ($self) = @_;
1514		2394
1515	$self->deactivate_recursive;	2395	$self->deactivate_recursive;
1516		2396
1517	return if $self->map == $LINK_MAP;	2397	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2398
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2399	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2400	if $self->map && $self->map->{path} ne "{link}";
1521		2401
1522	$self->enter_map ($LINK_MAP, 20, 20);	2402	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2403	}
1524		2404
1525	sub cf::object::player::leave_link {	2405	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2406	my ($self, $map, $x, $y) = @_;
		2407
		2408	return unless $self->contr->active;
1527		2409
1528	my $link_pos = delete $self->{_link_pos};	2410	my $link_pos = delete $self->{_link_pos};
1529		2411
1530	unless ($map) {	2412	unless ($map) {
1531	# restore original map position	2413	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2427	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2428	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2429	if $x <=0 && $y <= 0;
1548		2430
1549	$map->load;	2431	$map->load;
		2432	$map->load_neighbours;
1550		2433
		2434	return unless $self->contr->active;
1551	$self->activate_recursive;	2435	$self->activate_recursive;
		2436
		2437	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	2438	$self->enter_map ($map, $x, $y);
1553	}	2439	}
1554		2440
1555	cf::player->attach (	2441	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1556	on_logout => sub {
1557	my ($pl) = @_;
1558		2442
1559	# abort map switching before logout	2443	Moves the player to the given map-path and coordinates by first freezing
1560	if ($pl->ob->{_link_pos}) {	2444	her, loading and preparing them map, calling the provided $check callback
1561	cf::sync_job {	2445	that has to return the map if sucecssful, and then unfreezes the player on
1562	$pl->ob->leave_link	2446	the new (success) or old (failed) map position. In either case, $done will
1563	};	2447	be called at the end of this process.
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568		2448
1569	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582
1583	=item $player_object->goto_map ($path, $x, $y)
1584
1585	=cut	2449	=cut
1586		2450
		2451	our $GOTOGEN;
		2452
1587	sub cf::object::player::goto_map {	2453	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2454	my ($self, $path, $x, $y, $check, $done) = @_;
		2455
		2456	# do generation counting so two concurrent goto's will be executed in-order
		2457	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2458
1590	$self->enter_link;	2459	$self->enter_link;
1591		2460
1592	(cf::async {	2461	(async {
1593	$path = new cf::path $path;	2462	$Coro::current->{desc} = "player::goto $path $x $y";
1594		2463
1595	my $map = cf::map::find $path->as_string;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1597		2488	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1602		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1604	})->prio (1);	2507	})->prio (1);
1605	}	2508	}
1606		2509
1607	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1608		2511
…		…
1610		2513
1611	sub parse_random_map_params {	2514	sub parse_random_map_params {
1612	my ($spec) = @_;	2515	my ($spec) = @_;
1613		2516
1614	my $rmp = { # defaults	2517	my $rmp = { # defaults
1615	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1617	};	2522	};
1618		2523
1619	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1621		2526
…		…
1625	$rmp	2530	$rmp
1626	}	2531	}
1627		2532
1628	sub prepare_random_map {	2533	sub prepare_random_map {
1629	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		2537
1631	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	2540	# that depends on the exit object
1634		2541
1635	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1636		2543
1637	if ($exit->map) {	2544	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1642	}	2549	}
1643		2550
1644	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1645		2552
1646	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1648		2556
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1651		2561
1652	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2563	$exit->msg (undef);
1654	}	2564	}
1655	}	2565	}
…		…
1657	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1659		2569
1660	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1661		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1662	$self->enter_link;	2583	$self->enter_link;
1663		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
		2588
1664	(cf::async {	2589	(async {
		2590	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2591
1665	$self->deactivate_recursive; # just to be sure	2592	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2593	unless (eval {
1667	prepare_random_map $exit	2594	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		2595
1673	1;	2596	1;
1674	}) {	2597	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2598	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "I'll try to bring you back to the map you were before. "	2599	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2600	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2601	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2602
1680	warn "ERROR in enter_exit: $@";	2603	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2604	$self->leave_link;
1682	}	2605	}
1683	})->prio (1);	2606	})->prio (1);
…		…
1696		2619
1697	sub cf::client::send_drawinfo {	2620	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2621	my ($self, $text, $flags) = @_;
1699		2622
1700	utf8::encode $text;	2623	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2624	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2625	}
1703		2626
		2627	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2628
		2629	Send a drawinfo or msg packet to the client, formatting the msg for the
		2630	client if neccessary. C<$type> should be a string identifying the type of
		2631	the message, with C<log> being the default. If C<$color> is negative, suppress
		2632	the message unless the client supports the msg packet.
		2633
		2634	=cut
		2635
		2636	our %CHANNEL = (
		2637	"c/identify" => {
		2638	id => "infobox",
		2639	title => "Identify",
		2640	reply => undef,
		2641	tooltip => "Items recently identified",
		2642	},
		2643	"c/examine" => {
		2644	id => "infobox",
		2645	title => "Examine",
		2646	reply => undef,
		2647	tooltip => "Signs and other items you examined",
		2648	},
		2649	"c/lookat" => {
		2650	id => "infobox",
		2651	title => "Look",
		2652	reply => undef,
		2653	tooltip => "What you saw there",
		2654	},
		2655	);
		2656
		2657	sub cf::client::send_msg {
		2658	my ($self, $channel, $msg, $color, @extra) = @_;
		2659
		2660	$msg = $self->pl->expand_cfpod ($msg);
		2661
		2662	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2663
		2664	# check predefined channels, for the benefit of C
		2665	if ($CHANNEL{$channel}) {
		2666	$channel = $CHANNEL{$channel};
		2667
		2668	$self->ext_msg (channel_info => $channel)
		2669	if $self->can_msg;
		2670
		2671	$channel = $channel->{id};
		2672
		2673	} elsif (ref $channel) {
		2674	# send meta info to client, if not yet sent
		2675	unless (exists $self->{channel}{$channel->{id}}) {
		2676	$self->{channel}{$channel->{id}} = $channel;
		2677	$self->ext_msg (channel_info => $channel)
		2678	if $self->can_msg;
		2679	}
		2680
		2681	$channel = $channel->{id};
		2682	}
		2683
		2684	return unless @extra || length $msg;
		2685
		2686	if ($self->can_msg) {
		2687	# default colour, mask it out
		2688	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2689	if $color & cf::NDI_DEF;
		2690
		2691	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2692	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2693	} else {
		2694	if ($color >= 0) {
		2695	# replace some tags by gcfclient-compatible ones
		2696	for ($msg) {
		2697	1 while
		2698	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2699	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2700	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2701	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2702	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2703	}
		2704
		2705	$color &= cf::NDI_COLOR_MASK;
		2706
		2707	utf8::encode $msg;
		2708
		2709	if (0 && $msg =~ /\[/) {
		2710	# COMMAND/INFO
		2711	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2712	} else {
		2713	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2714	$self->send_packet ("drawinfo $color $msg")
		2715	}
		2716	}
		2717	}
		2718	}
		2719
		2720	=item $client->ext_msg ($type, @msg)
		2721
		2722	Sends an ext event to the client.
		2723
		2724	=cut
		2725
		2726	sub cf::client::ext_msg($$@) {
		2727	my ($self, $type, @msg) = @_;
		2728
		2729	if ($self->extcmd == 2) {
		2730	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2731	} elsif ($self->extcmd == 1) { # TODO: remove
		2732	push @msg, msgtype => "event_$type";
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2734	}
		2735	}
		2736
		2737	=item $client->ext_reply ($msgid, @msg)
		2738
		2739	Sends an ext reply to the client.
		2740
		2741	=cut
		2742
		2743	sub cf::client::ext_reply($$@) {
		2744	my ($self, $id, @msg) = @_;
		2745
		2746	if ($self->extcmd == 2) {
		2747	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2748	} elsif ($self->extcmd == 1) {
		2749	#TODO: version 1, remove
		2750	unshift @msg, msgtype => "reply", msgid => $id;
		2751	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2752	}
		2753	}
1704		2754
1705	=item $success = $client->query ($flags, "text", \&cb)	2755	=item $success = $client->query ($flags, "text", \&cb)
1706		2756
1707	Queues a query to the client, calling the given callback with	2757	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2758	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2759	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		2760
1711	Queries can fail, so check the return code. Or don't, as queries will become	2761	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	2762	become reliable at some point in the future.
1713		2763
1714	=cut	2764	=cut
1715		2765
1716	sub cf::client::query {	2766	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	2767	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	2775	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2776	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		2777
1728	$self->send_packet ($self->{query_queue}[0][0])	2778	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	2779	if @{ $self->{query_queue} } == 1;
		2780
		2781	1
1730	}	2782	}
1731		2783
1732	cf::client->attach (	2784	cf::client->attach (
		2785	on_connect => sub {
		2786	my ($ns) = @_;
		2787
		2788	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2789	},
1733	on_reply => sub {	2790	on_reply => sub {
1734	my ($ns, $msg) = @_;	2791	my ($ns, $msg) = @_;
1735		2792
1736	# this weird shuffling is so that direct followup queries	2793	# this weird shuffling is so that direct followup queries
1737	# get handled first	2794	# get handled first
1738	my $queue = delete $ns->{query_queue}	2795	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2796	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2797
1741	(shift @$queue)->[1]->($msg);	2798	(shift @$queue)->[1]->($msg);
		2799	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2800
1743	push @{ $ns->{query_queue} }, @$queue;	2801	push @{ $ns->{query_queue} }, @$queue;
1744		2802
1745	if (@{ $ns->{query_queue} } == @$queue) {	2803	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2804	if (@$queue) {
…		…
1748	} else {	2806	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2807	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	2808	}
1751	}	2809	}
1752	},	2810	},
		2811	on_exticmd => sub {
		2812	my ($ns, $buf) = @_;
		2813
		2814	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2815
		2816	if (ref $msg) {
		2817	my ($type, $reply, @payload) =
		2818	"ARRAY" eq ref $msg
		2819	? @$msg
		2820	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2821
		2822	my @reply;
		2823
		2824	if (my $cb = $EXTICMD{$type}) {
		2825	@reply = $cb->($ns, @payload);
		2826	}
		2827
		2828	$ns->ext_reply ($reply, @reply)
		2829	if $reply;
		2830
		2831	} else {
		2832	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2833	}
		2834
		2835	cf::override;
		2836	},
1753	);	2837	);
1754		2838
1755	=item $client->coro (\&cb)	2839	=item $client->async (\&cb)
1756		2840
1757	Create a new coroutine, running the specified callback. The coroutine will	2841	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	2842	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	2843	or loss of connection).
1760		2844
1761	=cut	2845	=cut
1762		2846
1763	sub cf::client::coro {	2847	sub cf::client::async {
1764	my ($self, $cb) = @_;	2848	my ($self, $cb) = @_;
1765		2849
1766	my $coro = &cf::async ($cb);	2850	my $coro = &Coro::async ($cb);
1767		2851
1768	$coro->on_destroy (sub {	2852	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2853	delete $self->{_coro}{$coro+0};
1770	});	2854	});
1771		2855
…		…
1798	our $safe = new Safe "safe";	2882	our $safe = new Safe "safe";
1799	our $safe_hole = new Safe::Hole;	2883	our $safe_hole = new Safe::Hole;
1800		2884
1801	$SIG{FPE} = 'IGNORE';	2885	$SIG{FPE} = 'IGNORE';
1802		2886
1803	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2887	$safe->permit_only (Opcode::opset qw(
		2888	:base_core :base_mem :base_orig :base_math
		2889	grepstart grepwhile mapstart mapwhile
		2890	sort time
		2891	));
1804		2892
1805	# here we export the classes and methods available to script code	2893	# here we export the classes and methods available to script code
1806		2894
1807	=pod	2895	=pod
1808		2896
1809	The following fucntions and emthods are available within a safe environment:	2897	The following functions and methods are available within a safe environment:
1810		2898
1811	cf::object contr pay_amount pay_player map	2899	cf::object
		2900	contr pay_amount pay_player map x y force_find force_add
		2901	insert remove name archname title slaying race decrease_ob_nr
		2902
1812	cf::object::player player	2903	cf::object::player
1813	cf::player peaceful	2904	player
1814	cf::map trigger	2905
		2906	cf::player
		2907	peaceful
		2908
		2909	cf::map
		2910	trigger
1815		2911
1816	=cut	2912	=cut
1817		2913
1818	for (	2914	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	2915	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2916	insert remove inv name archname title slaying race
		2917	decrease_ob_nr)],
1820	["cf::object::player" => qw(player)],	2918	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	2919	["cf::player" => qw(peaceful)],
1822	["cf::map" => qw(trigger)],	2920	["cf::map" => qw(trigger)],
1823	) {	2921	) {
1824	no strict 'refs';	2922	no strict 'refs';
…		…
1895	=back	2993	=back
1896		2994
1897	=cut	2995	=cut
1898		2996
1899	#############################################################################	2997	#############################################################################
		2998	# the server's init and main functions
1900		2999
1901	=head2 EXTENSION DATABASE SUPPORT	3000	sub load_facedata($) {
		3001	my ($path) = @_;
1902		3002
1903	Crossfire maintains a very simple database for extension use. It can	3003	# HACK to clear player env face cache, we need some signal framework
1904	currently store anything that can be serialised using Storable, which	3004	# for this (global event?)
1905	excludes objects.	3005	%ext::player_env::MUSIC_FACE_CACHE = ();
1906		3006
1907	The parameter C<$family> should best start with the name of the extension	3007	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1908	using it, it should be unique.
1909		3008
1910	=over 4	3009	warn "loading facedata from $path\n";
1911		3010
1912	=item $hashref = cf::db_get $family	3011	my $facedata;
		3012	0 < aio_load $path, $facedata
		3013	or die "$path: $!";
1913		3014
1914	Return a hashref for use by the extension C<$family>, which can be	3015	$facedata = Coro::Storable::thaw $facedata;
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917		3016
1918	=item $value = cf::db_get $family => $key	3017	$facedata->{version} == 2
		3018	or cf::cleanup "$path: version mismatch, cannot proceed.";
1919		3019
1920	Returns a single value from the database	3020	# patch in the exptable
1921		3021	$facedata->{resource}{"res/exp_table"} = {
1922	=item cf::db_put $family => $hashref	3022	type => FT_RSRC,
1923		3023	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}
1950
1951	my $pid;
1952
1953	sub db_save() {
1954	waitpid $pid, 0 if $pid;
1955	if (0 == ($pid = fork)) {
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	3024	};
		3025	cf::cede_to_tick;
1973		3026
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}	3027	{
		3028	my $faces = $facedata->{faceinfo};
1978		3029
1979	sub db_get($;$) {	3030	while (my ($face, $info) = each %$faces) {
1980	@_ >= 2	3031	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1981	? $DB->{$_[0]}{$_[1]}	3032	cf::face::set_visibility $idx, $info->{visibility};
1982	: ($DB->{$_[0]} ||= { })	3033	cf::face::set_magicmap $idx, $info->{magicmap};
1983	}	3034	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3035	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1984		3036
1985	sub db_put($$;$) {	3037	cf::cede_to_tick;
1986	if (@_ >= 3) {
1987	$DB->{$_[0]}{$_[1]} = $_[2];
1988	} else {
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	3038	}
1999	);
2000	}
2001		3039
2002	#############################################################################	3040	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	3041	next unless $info->{smooth};
		3042	my $idx = cf::face::find $face
		3043	or next;
		3044	if (my $smooth = cf::face::find $info->{smooth}) {
		3045	cf::face::set_smooth $idx, $smooth;
		3046	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3047	} else {
		3048	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3049	}
2004		3050
2005	sub cfg_load {	3051	cf::cede_to_tick;
		3052	}
		3053	}
		3054
		3055	{
		3056	my $anims = $facedata->{animinfo};
		3057
		3058	while (my ($anim, $info) = each %$anims) {
		3059	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3060	cf::cede_to_tick;
		3061	}
		3062
		3063	cf::anim::invalidate_all; # d'oh
		3064	}
		3065
		3066	{
		3067	# TODO: for gcfclient pleasure, we should give resources
		3068	# that gcfclient doesn't grok a >10000 face index.
		3069	my $res = $facedata->{resource};
		3070
		3071	my $soundconf = delete $res->{"res/sound.conf"};
		3072
		3073	while (my ($name, $info) = each %$res) {
		3074	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3075	my $data;
		3076
		3077	if ($info->{type} & 1) {
		3078	# prepend meta info
		3079
		3080	my $meta = $enc->encode ({
		3081	name => $name,
		3082	%{ $info->{meta} || {} },
		3083	});
		3084
		3085	$data = pack "(w/a*)*", $meta, $info->{data};
		3086	} else {
		3087	$data = $info->{data};
		3088	}
		3089
		3090	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3091	cf::face::set_type $idx, $info->{type};
		3092
		3093	cf::cede_to_tick;
		3094	}
		3095
		3096	if ($soundconf) {
		3097	$soundconf = $enc->decode (delete $soundconf->{data});
		3098
		3099	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3100	my $sound = $soundconf->{compat}[$_]
		3101	or next;
		3102
		3103	my $face = cf::face::find "sound/$sound->[1]";
		3104	cf::sound::set $sound->[0] => $face;
		3105	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3106	}
		3107
		3108	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3109	my $face = cf::face::find "sound/$v";
		3110	cf::sound::set $k => $face;
		3111	}
		3112	}
		3113	}
		3114
		3115	1
		3116	}
		3117
		3118	register_exticmd fx_want => sub {
		3119	my ($ns, $want) = @_;
		3120
		3121	while (my ($k, $v) = each %$want) {
		3122	$ns->fx_want ($k, $v);
		3123	}
		3124	};
		3125
		3126	sub reload_regions {
		3127	# HACK to clear player env face cache, we need some signal framework
		3128	# for this (global event?)
		3129	%ext::player_env::MUSIC_FACE_CACHE = ();
		3130
		3131	load_resource_file "$MAPDIR/regions"
		3132	or die "unable to load regions file\n";
		3133
		3134	for (cf::region::list) {
		3135	$_->{match} = qr/$_->{match}/
		3136	if exists $_->{match};
		3137	}
		3138	}
		3139
		3140	sub reload_facedata {
		3141	load_facedata "$DATADIR/facedata"
		3142	or die "unable to load facedata\n";
		3143	}
		3144
		3145	sub reload_archetypes {
		3146	load_resource_file "$DATADIR/archetypes"
		3147	or die "unable to load archetypes\n";
		3148	#d# NEED to laod twice to resolve forward references
		3149	# this really needs to be done in an extra post-pass
		3150	# (which needs to be synchronous, so solve it differently)
		3151	load_resource_file "$DATADIR/archetypes"
		3152	or die "unable to load archetypes\n";
		3153	}
		3154
		3155	sub reload_treasures {
		3156	load_resource_file "$DATADIR/treasures"
		3157	or die "unable to load treasurelists\n";
		3158	}
		3159
		3160	sub reload_resources {
		3161	warn "reloading resource files...\n";
		3162
		3163	reload_regions;
		3164	reload_facedata;
		3165	#reload_archetypes;#d#
		3166	reload_archetypes;
		3167	reload_treasures;
		3168
		3169	warn "finished reloading resource files\n";
		3170	}
		3171
		3172	sub init {
		3173	reload_resources;
		3174	}
		3175
		3176	sub reload_config {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	3177	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	3178	or return;
2008		3179
2009	local $/;	3180	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	3181	*CFG = YAML::Syck::Load <$fh>;
2011		3182
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3183	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		3184
		3185	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3186	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3187
2014	if (exists $CFG{mlockall}) {	3188	if (exists $CFG{mlockall}) {
2015	eval {	3189	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	3190	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	3191	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	3192	};
2019	warn $@ if $@;	3193	warn $@ if $@;
2020	}	3194	}
2021	}	3195	}
2022		3196
2023	sub main {	3197	sub main {
2024	# we must not ever block the main coroutine	3198	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	3199	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3200	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	3201	(async {
		3202	$Coro::current->{desc} = "IDLE BUG HANDLER";
2028	Event::one_event;	3203	Event::one_event;
2029	})->();	3204	})->prio (Coro::PRIO_MAX);
2030	};	3205	};
2031		3206
2032	cfg_load;	3207	reload_config;
2033	db_load;	3208	db_init;
2034	load_extensions;	3209	load_extensions;
		3210
		3211	$TICK_WATCHER->start;
2035	Event::loop;	3212	Event::loop;
2036	}	3213	}
2037		3214
2038	#############################################################################	3215	#############################################################################
2039	# initialisation	3216	# initialisation and cleanup
2040		3217
		3218	# install some emergency cleanup handlers
		3219	BEGIN {
		3220	for my $signal (qw(INT HUP TERM)) {
		3221	Event->signal (
		3222	reentrant => 0,
		3223	data => WF_AUTOCANCEL,
		3224	signal => $signal,
		3225	prio => 0,
		3226	cb => sub {
		3227	cf::cleanup "SIG$signal";
		3228	},
		3229	);
		3230	}
		3231	}
		3232
		3233	sub write_runtime {
		3234	my $runtime = "$LOCALDIR/runtime";
		3235
		3236	# first touch the runtime file to show we are still running:
		3237	# the fsync below can take a very very long time.
		3238
		3239	IO::AIO::aio_utime $runtime, undef, undef;
		3240
		3241	my $guard = cf::lock_acquire "write_runtime";
		3242
		3243	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3244	or return;
		3245
		3246	my $value = $cf::RUNTIME + 90 + 10;
		3247	# 10 is the runtime save interval, for a monotonic clock
		3248	# 60 allows for the watchdog to kill the server.
		3249
		3250	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3251	and return;
		3252
		3253	# always fsync - this file is important
		3254	aio_fsync $fh
		3255	and return;
		3256
		3257	# touch it again to show we are up-to-date
		3258	aio_utime $fh, undef, undef;
		3259
		3260	close $fh
		3261	or return;
		3262
		3263	aio_rename "$runtime~", $runtime
		3264	and return;
		3265
		3266	warn "runtime file written.\n";
		3267
		3268	1
		3269	}
		3270
		3271	sub emergency_save() {
		3272	my $freeze_guard = cf::freeze_mainloop;
		3273
		3274	warn "enter emergency perl save\n";
		3275
		3276	cf::sync_job {
		3277	# use a peculiar iteration method to avoid tripping on perl
		3278	# refcount bugs in for. also avoids problems with players
		3279	# and maps saved/destroyed asynchronously.
		3280	warn "begin emergency player save\n";
		3281	for my $login (keys %cf::PLAYER) {
		3282	my $pl = $cf::PLAYER{$login} or next;
		3283	$pl->valid or next;
		3284	$pl->save;
		3285	}
		3286	warn "end emergency player save\n";
		3287
		3288	warn "begin emergency map save\n";
		3289	for my $path (keys %cf::MAP) {
		3290	my $map = $cf::MAP{$path} or next;
		3291	$map->valid or next;
		3292	$map->save;
		3293	}
		3294	warn "end emergency map save\n";
		3295
		3296	warn "begin emergency database checkpoint\n";
		3297	BDB::db_env_txn_checkpoint $DB_ENV;
		3298	warn "end emergency database checkpoint\n";
		3299	};
		3300
		3301	warn "leave emergency perl save\n";
		3302	}
		3303
		3304	sub post_cleanup {
		3305	my ($make_core) = @_;
		3306
		3307	warn Carp::longmess "post_cleanup backtrace"
		3308	if $make_core;
		3309	}
		3310
2041	sub reload() {	3311	sub do_reload_perl() {
2042	# can/must only be called in main	3312	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	3313	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	3314	warn "can only reload from main coroutine";
2045	return;	3315	return;
2046	}	3316	}
2047		3317
2048	warn "reloading...";	3318	warn "reloading...";
2049		3319
2050	my $guard = freeze_mainloop;	3320	warn "entering sync_job";
		3321
		3322	cf::sync_job {
		3323	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	3324	cf::emergency_save;
		3325	cf::write_runtime; # external watchdog should not bark
2052		3326
2053	eval {	3327	warn "syncing database to disk";
		3328	BDB::db_env_txn_checkpoint $DB_ENV;
		3329
2054	# if anything goes wrong in here, we should simply crash as we already saved	3330	# if anything goes wrong in here, we should simply crash as we already saved
2055		3331
2056	# cancel all watchers	3332	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	3333	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	3334	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	3335	}
2060		3336
		3337	warn "flushing outstanding aio requests";
		3338	for (;;) {
		3339	BDB::flush;
		3340	IO::AIO::flush;
		3341	Coro::cede;
		3342	last unless IO::AIO::nreqs || BDB::nreqs;
		3343	warn "iterate...";
		3344	}
		3345
		3346	++$RELOAD;
		3347
2061	# cancel all extension coros	3348	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	3349	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	3350	%EXT_CORO = ();
2064		3351
2065	# unload all extensions	3352	warn "removing commands";
2066	for (@exts) {	3353	%COMMAND = ();
		3354
		3355	warn "removing ext/exti commands";
		3356	%EXTCMD = ();
		3357	%EXTICMD = ();
		3358
		3359	warn "unloading/nuking all extensions";
		3360	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	3361	warn "... unloading $pkg";
2068	unload_extension $_;	3362
		3363	if (my $cb = $pkg->can ("unload")) {
		3364	eval {
		3365	$cb->($pkg);
		3366	1
		3367	} or warn "$pkg unloaded, but with errors: $@";
2069	}	3368	}
2070		3369
		3370	warn "... nuking $pkg";
		3371	Symbol::delete_package $pkg;
		3372	}
		3373
2071	# unload all modules loaded from $LIBDIR	3374	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	3375	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3376	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		3377
2075	warn "removing <$k>";	3378	warn "... unloading $k";
2076	delete $INC{$k};	3379	delete $INC{$k};
2077		3380
2078	$k =~ s/\.pm$//;	3381	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	3382	$k =~ s/\//::/g;
2080		3383
…		…
2083	}	3386	}
2084		3387
2085	Symbol::delete_package $k;	3388	Symbol::delete_package $k;
2086	}	3389	}
2087		3390
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	3391	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	3392	Symbol::delete_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3393	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		3394
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	3395	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	3396	delete $INC{"cf.pm"};
		3397	delete $INC{"cf/pod.pm"};
2101		3398
2102	# don't, removes xs symbols, too,	3399	# don't, removes xs symbols, too,
2103	# and global variables created in xs	3400	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	3401	#Symbol::delete_package __PACKAGE__;
2105		3402
2106	# reload cf.pm	3403	warn "unload completed, starting to reload now";
		3404
2107	warn "reloading cf.pm";	3405	warn "reloading cf.pm";
2108	require cf;	3406	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3407	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		3408
2111	# load config and database again	3409	warn "loading config and database again";
2112	cf::cfg_load;	3410	cf::reload_config;
2113	cf::db_load;
2114		3411
2115	# load extensions
2116	warn "load extensions";	3412	warn "loading extensions";
2117	cf::load_extensions;	3413	cf::load_extensions;
2118		3414
2119	# reattach attachments to objects	3415	warn "reattaching attachments to objects/players";
2120	warn "reattach";	3416	_global_reattach; # objects, sockets
2121	_global_reattach;	3417	warn "reattaching attachments to maps";
2122	};	3418	reattach $_ for values %MAP;
		3419	warn "reattaching attachments to players";
		3420	reattach $_ for values %PLAYER;
2123		3421
2124	if ($@) {	3422	warn "leaving sync_job";
		3423
		3424	1
		3425	} or do {
2125	warn $@;	3426	warn $@;
2126	warn "error while reloading, exiting.";	3427	warn "error while reloading, exiting.";
2127	exit 1;	3428	exit 1;
2128	}	3429	};
2129		3430
2130	warn "reloaded successfully";	3431	warn "reloaded";
2131	};	3432	};
2132		3433
2133	#############################################################################	3434	our $RELOAD_WATCHER; # used only during reload
2134		3435
2135	unless ($LINK_MAP) {	3436	sub reload_perl() {
2136	$LINK_MAP = cf::map::new;	3437	# doing reload synchronously and two reloads happen back-to-back,
		3438	# coro crashes during coro_state_free->destroy here.
2137		3439
2138	$LINK_MAP->width (41);	3440	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	3441	reentrant => 0,
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,	3442	after => 0,
		3443	data => WF_AUTOCANCEL,
2148	cb => sub {	3444	cb => sub {
2149	$_[0]->w->cancel;	3445	do_reload_perl;
2150		3446	undef $RELOAD_WATCHER;
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});	3447	},
2169		3448	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3449	}
2175
2176	register "<global>", __PACKAGE__;
2177		3450
2178	register_command "reload" => sub {	3451	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3452	my ($who, $arg) = @_;
2180		3453
2181	if ($who->flag (FLAG_WIZ)) {	3454	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3455	$who->message ("reloading server.");
		3456	async {
		3457	$Coro::current->{desc} = "perl_reload";
		3458	reload_perl;
		3459	};
2185	}	3460	}
2186	};	3461	};
2187		3462
2188	unshift @INC, $LIBDIR;	3463	unshift @INC, $LIBDIR;
		3464
		3465	my $bug_warning = 0;
		3466
		3467	our @WAIT_FOR_TICK;
		3468	our @WAIT_FOR_TICK_BEGIN;
		3469
		3470	sub wait_for_tick {
		3471	return unless $TICK_WATCHER->is_active;
		3472	return if $Coro::current == $Coro::main;
		3473
		3474	my $signal = new Coro::Signal;
		3475	push @WAIT_FOR_TICK, $signal;
		3476	$signal->wait;
		3477	}
		3478
		3479	sub wait_for_tick_begin {
		3480	return unless $TICK_WATCHER->is_active;
		3481	return if $Coro::current == $Coro::main;
		3482
		3483	my $signal = new Coro::Signal;
		3484	push @WAIT_FOR_TICK_BEGIN, $signal;
		3485	$signal->wait;
		3486	}
2189		3487
2190	$TICK_WATCHER = Event->timer (	3488	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	3489	reentrant => 0,
		3490	parked => 1,
2192	prio => 0,	3491	prio => 0,
2193	at => $NEXT_TICK || $TICK,	3492	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	3493	data => WF_AUTOCANCEL,
2195	cb => sub {	3494	cb => sub {
		3495	if ($Coro::current != $Coro::main) {
		3496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3497	unless ++$bug_warning > 10;
		3498	return;
		3499	}
		3500
		3501	$NOW = $tick_start = Event::time;
		3502
2196	cf::server_tick; # one server iteration	3503	cf::server_tick; # one server iteration
		3504
2197	$RUNTIME += $TICK;	3505	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	3506	$NEXT_TICK += $TICK;
2199		3507
		3508	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3509	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3510	Coro::async_pool {
		3511	$Coro::current->{desc} = "runtime saver";
		3512	write_runtime
		3513	or warn "ERROR: unable to write runtime file: $!";
		3514	};
		3515	}
		3516
		3517	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3518	$sig->send;
		3519	}
		3520	while (my $sig = shift @WAIT_FOR_TICK) {
		3521	$sig->send;
		3522	}
		3523
		3524	$NOW = Event::time;
		3525
2200	# if we are delayed by four ticks or more, skip them all	3526	# if we are delayed by four ticks or more, skip them all
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3527	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2202		3528
2203	$TICK_WATCHER->at ($NEXT_TICK);	3529	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	3530	$TICK_WATCHER->start;
		3531
		3532	$LOAD = ($NOW - $tick_start) / $TICK;
		3533	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3534
		3535	_post_tick;
2205	},	3536	},
2206	);	3537	);
2207		3538
		3539	{
		3540	BDB::min_parallel 8;
2208	IO::AIO::max_poll_time $TICK * 0.2;	3541	BDB::max_poll_time $TICK * 0.1;
2209		3542	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	3543	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	3544	fd => BDB::poll_fileno,
2212	poll => 'r',	3545	poll => 'r',
2213	prio => 5,	3546	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	3547	data => WF_AUTOCANCEL,
		3548	cb => \&BDB::poll_cb,
		3549	);
		3550
		3551	BDB::set_sync_prepare {
		3552	my $status;
		3553	my $current = $Coro::current;
		3554	(
		3555	sub {
		3556	$status = $!;
		3557	$current->ready; undef $current;
		3558	},
		3559	sub {
		3560	Coro::schedule while defined $current;
		3561	$! = $status;
		3562	},
		3563	)
		3564	};
		3565
		3566	unless ($DB_ENV) {
		3567	$DB_ENV = BDB::db_env_create;
		3568	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3569	| BDB::LOG_AUTOREMOVE, 1);
		3570	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3571	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3572
		3573	cf::sync_job {
		3574	eval {
		3575	BDB::db_env_open
		3576	$DB_ENV,
		3577	$BDBDIR,
		3578	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3579	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3580	0666;
		3581
		3582	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3583	};
		3584
		3585	cf::cleanup "db_env_open(db): $@" if $@;
		3586	};
		3587	}
		3588
		3589	$BDB_DEADLOCK_WATCHER = Event->timer (
2220	after => 0,	3590	after => 3,
2221	interval => 10,	3591	interval => 1,
		3592	hard => 1,
		3593	prio => 0,
		3594	data => WF_AUTOCANCEL,
2222	cb => sub {	3595	cb => sub {
2223	(Coro::unblock_sub {	3596	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2224	write_runtime	3597	},
2225	or warn "ERROR: unable to write runtime file: $!";	3598	);
		3599	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3600	after => 11,
		3601	interval => 60,
		3602	hard => 1,
		3603	prio => 0,
		3604	data => WF_AUTOCANCEL,
		3605	cb => sub {
		3606	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3607	},
		3608	);
		3609	$BDB_TRICKLE_WATCHER = Event->timer (
		3610	after => 5,
		3611	interval => 10,
		3612	hard => 1,
		3613	prio => 0,
		3614	data => WF_AUTOCANCEL,
		3615	cb => sub {
		3616	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3617	},
		3618	);
		3619	}
		3620
		3621	{
		3622	IO::AIO::min_parallel 8;
		3623
		3624	undef $Coro::AIO::WATCHER;
		3625	IO::AIO::max_poll_time $TICK * 0.1;
		3626	$AIO_POLL_WATCHER = Event->io (
		3627	reentrant => 0,
		3628	data => WF_AUTOCANCEL,
		3629	fd => IO::AIO::poll_fileno,
		3630	poll => 'r',
		3631	prio => 0,
		3632	cb => \&IO::AIO::poll_cb,
		3633	);
		3634	}
		3635
		3636	my $_log_backtrace;
		3637
		3638	sub _log_backtrace {
		3639	my ($msg, @addr) = @_;
		3640
		3641	$msg =~ s/\n//;
		3642
		3643	# limit the # of concurrent backtraces
		3644	if ($_log_backtrace < 2) {
		3645	++$_log_backtrace;
		3646	async {
		3647	$Coro::current->{desc} = "abt $msg";
		3648
		3649	my @bt = fork_call {
		3650	@addr = map { sprintf "%x", $_ } @addr;
		3651	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3652	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3653	or die "addr2line: $!";
		3654
		3655	my @funcs;
		3656	my @res = <$fh>;
		3657	chomp for @res;
		3658	while (@res) {
		3659	my ($func, $line) = splice @res, 0, 2, ();
		3660	push @funcs, "[$func] $line";
		3661	}
		3662
		3663	@funcs
		3664	};
		3665
		3666	LOG llevInfo, "[ABT] $msg\n";
		3667	LOG llevInfo, "[ABT] $_\n" for @bt;
		3668	--$_log_backtrace;
2226	})->();	3669	};
		3670	} else {
		3671	LOG llevInfo, "[ABT] $msg\n";
		3672	LOG llevInfo, "[ABT] [suppressed]\n";
2227	},	3673	}
2228	);	3674	}
		3675
		3676	# load additional modules
		3677	use cf::pod;
2229		3678
2230	END { cf::emergency_save }	3679	END { cf::emergency_save }
2231		3680
2232	1	3681	1
2233		3682

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