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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.361 by root, Sun Sep 9 12:52:48 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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
52	our %MAP; # all maps	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	94	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
56		102
57	binmode STDOUT;	103	binmode STDOUT;
58	binmode STDERR;	104	binmode STDERR;
59		105
60	# read virtual server time, if available	106	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
65	}	111	}
66		112
67	mkdir cf::localdir;	113	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		115
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	133	every server tick.
91		134
92	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
104		161
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
123	};	194	};
124	}	195	}
125		196
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		204
133	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	206	# within the Safe compartment.
135	for my $pkg (qw(	207	for my $pkg (qw(
136	cf::global cf::attachable	208	cf::global cf::attachable
…		…
145		217
146	$Event::DIED = sub {	218	$Event::DIED = sub {
147	warn "error in event callback: @_";	219	warn "error in event callback: @_";
148	};	220	};
149		221
150	my %ext_pkg;	222	#############################################################################
151	my @exts;
152	my @hook;
153		223
154	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
155		225
156	=over 4	226	=over 4
157		227
158	=cut	228	=item dumpval $ref
159		229
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
161		250
162	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
163		252
164	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
165		254
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
174		256
175	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
176		258
177	=cut	259	=cut
178		260
179	sub to_json($) {	261	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		262
184	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
185		264	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		265
206	=item cf::lock_wait $string	266	=item cf::lock_wait $string
207		267
208	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
209		269
210	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
211		271
212	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
215	returned.	275	returned.
216		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
217	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
219		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
220	=cut	287	=cut
221		288
222	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
223		291
224	sub lock_wait($) {	292	sub lock_wait($) {
225	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
226		299
227	# wait for lock, if any	300	# wait for lock, if any
228	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;	303	Coro::schedule;
…		…
236		309
237	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
238	lock_wait $key;	311	lock_wait $key;
239		312
240	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
241		315
242	cf::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
243	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
245	}	320	}
246	}	321	}
247		322
248	=item cf::async { BLOCK }	323	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) = @_;	324	my ($key) = @_;
257		325
258	Coro::async {	326	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	327	}
263		328
264	sub freeze_mainloop {	329	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
266		331
267	my $guard = guard { $TICK_WATCHER->start };	332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
268	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
269	$guard	336	$guard
270	}	337	}
271		338
		339	=item cf::get_slot $time[, $priority[, $name]]
		340
		341	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		342	This call blocks and returns only when you have at least C<$time> seconds
		343	of cpu time till the next tick. The slot is only valid till the next cede.
		344
		345	The optional C<$name> can be used to identify the job to run. It might be
		346	used for statistical purposes and should identify the same time-class.
		347
		348	Useful for short background jobs.
		349
		350	=cut
		351
		352	our @SLOT_QUEUE;
		353	our $SLOT_QUEUE;
		354
		355	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		356	$SLOT_QUEUE = Coro::async {
		357	my $signal = new Coro::Signal;
		358
		359	while () {
		360	next_job:
		361	my $avail = cf::till_tick;
		362	if ($avail > 0.01) {
		363	for (0 .. $#SLOT_QUEUE) {
		364	if ($SLOT_QUEUE[$_][0] < $avail) {
		365	my $job = splice @SLOT_QUEUE, $_, 1, ();
		366	$job->[2]->send;
		367	Coro::cede;
		368	goto next_job;
		369	}
		370	}
		371	}
		372
		373	if (@SLOT_QUEUE) {
		374	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		375	push @cf::WAIT_FOR_TICK, $signal;
		376	$signal->wait;
		377	} else {
		378	Coro::schedule;
		379	}
		380	}
		381	};
		382
		383	sub get_slot($;$$) {
		384	my ($time, $pri, $name) = @_;
		385
		386	$time = $TICK * .6 if $time > $TICK * .6;
		387	my $sig = new Coro::Signal;
		388
		389	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		390	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		391	$SLOT_QUEUE->ready;
		392	$sig->wait;
		393	}
		394
		395	=item cf::async { BLOCK }
		396
		397	Currently the same as Coro::async_pool, meaning you cannot use
		398	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		399	thing you are allowed to do is call C<prio> on it.
		400
		401	=cut
		402
		403	BEGIN { *async = \&Coro::async_pool }
		404
272	=item cf::sync_job { BLOCK }	405	=item cf::sync_job { BLOCK }
273		406
274	The design of crossfire+ requires that the main coro ($Coro::main) is	407	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	408	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.	409	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		410	acceptable.
277		411
278	If it must be done, put the blocking parts into C<sync_job>. This will run	412	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	413	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	414	server will be frozen during this time, so the block should either finish
281	fast or be very important.	415	fast or be very important.
…		…
284		418
285	sub sync_job(&) {	419	sub sync_job(&) {
286	my ($job) = @_;	420	my ($job) = @_;
287		421
288	if ($Coro::current == $Coro::main) {	422	if ($Coro::current == $Coro::main) {
		423	my $time = Event::time;
		424
289	# this is the main coro, too bad, we have to block	425	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	426	# till the operation succeeds, freezing the server :/
291		427
292	# TODO: use suspend/resume instead	428	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	429	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	430	my $freeze_guard = freeze_mainloop;
295		431
296	my $busy = 1;	432	my $busy = 1;
297	my @res;	433	my @res;
298		434
299	(Coro::async {	435	(async {
300	@res = eval { $job->() };	436	@res = eval { $job->() };
301	warn $@ if $@;	437	warn $@ if $@;
302	undef $busy;	438	undef $busy;
303	})->prio (Coro::PRIO_MAX);	439	})->prio (Coro::PRIO_MAX);
304		440
305	while ($busy) {	441	while ($busy) {
306	Coro::cede_notself;	442	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	443	}
		444
		445	$time = Event::time - $time;
		446
		447	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		448	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		449
		450	$tick_start += $time; # do not account sync jobs to server load
309		451
310	wantarray ? @res : $res[0]	452	wantarray ? @res : $res[0]
311	} else {	453	} else {
312	# we are in another coroutine, how wonderful, everything just works	454	# we are in another coroutine, how wonderful, everything just works
313		455
314	$job->()	456	$job->()
315	}	457	}
316	}	458	}
317		459
318	=item $coro = cf::coro { BLOCK }	460	=item $coro = cf::async_ext { BLOCK }
319		461
320	Creates and returns a new coro. This coro is automcatially being canceled	462	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	463	extension calling this is being unloaded.
322		464
323	=cut	465	=cut
324		466
325	sub coro(&) {	467	sub async_ext(&) {
326	my $cb = shift;	468	my $cb = shift;
327		469
328	my $coro = &cf::async ($cb);	470	my $coro = &Coro::async ($cb);
329		471
330	$coro->on_destroy (sub {	472	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	473	delete $EXT_CORO{$coro+0};
332	});	474	});
333	$EXT_CORO{$coro+0} = $coro;	475	$EXT_CORO{$coro+0} = $coro;
334		476
335	$coro	477	$coro
336	}	478	}
337		479
338	sub write_runtime {	480	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		481
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	482	Executes the given code block with the given arguments in a seperate
342	or return;	483	process, returning the results. Everything must be serialisable with
		484	Coro::Storable. May, of course, block. Note that the executed sub may
		485	never block itself or use any form of Event handling.
343		486
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	487	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		488
348	aio_fsync $fh	489	sub fork_call(&@) {
349	and return;	490	my ($cb, @args) = @_;
350		491
351	close $fh	492	# we seemingly have to make a local copy of the whole thing,
352	or return;	493	# otherwise perl prematurely frees the stuff :/
		494	# TODO: investigate and fix (likely this will be rather laborious)
353		495
354	aio_rename "$runtime~", $runtime	496	my @res = Coro::Util::fork_eval {
355	and return;	497	reset_signals;
		498	&$cb
		499	}, @args;
356		500
		501	wantarray ? @res : $res[-1]
		502	}
		503
		504	=item $value = cf::db_get $family => $key
		505
		506	Returns a single value from the environment database.
		507
		508	=item cf::db_put $family => $key => $value
		509
		510	Stores the given C<$value> in the family. It can currently store binary
		511	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		512
		513	=cut
		514
		515	our $DB;
		516
		517	sub db_init {
		518	unless ($DB) {
		519	$DB = BDB::db_create $DB_ENV;
		520
		521	cf::sync_job {
		522	eval {
		523	$DB->set_flags (BDB::CHKSUM);
		524
		525	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		526	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		527	cf::cleanup "db_open(db): $!" if $!;
		528	};
		529	cf::cleanup "db_open(db): $@" if $@;
		530	};
357	1	531	}
		532	}
		533
		534	sub db_get($$) {
		535	my $key = "$_[0]/$_[1]";
		536
		537	cf::sync_job {
		538	BDB::db_get $DB, undef, $key, my $data;
		539
		540	$! ? ()
		541	: $data
		542	}
		543	}
		544
		545	sub db_put($$$) {
		546	BDB::dbreq_pri 4;
		547	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		548	}
		549
		550	=item cf::cache $id => [$paths...], $processversion => $process
		551
		552	Generic caching function that returns the value of the resource $id,
		553	caching and regenerating as required.
		554
		555	This function can block.
		556
		557	=cut
		558
		559	sub cache {
		560	my ($id, $src, $processversion, $process) = @_;
		561
		562	my $meta =
		563	join "\x00",
		564	$processversion,
		565	map {
		566	aio_stat $_
		567	and Carp::croak "$_: $!";
		568
		569	($_, (stat _)[7,9])
		570	} @$src;
		571
		572	my $dbmeta = db_get cache => "$id/meta";
		573	if ($dbmeta ne $meta) {
		574	# changed, we may need to process
		575
		576	my @data;
		577	my $md5;
		578
		579	for (0 .. $#$src) {
		580	0 <= aio_load $src->[$_], $data[$_]
		581	or Carp::croak "$src->[$_]: $!";
		582	}
		583
		584	# if processing is expensive, check
		585	# checksum first
		586	if (1) {
		587	$md5 =
		588	join "\x00",
		589	$processversion,
		590	map {
		591	cf::cede_to_tick;
		592	($src->[$_], Digest::MD5::md5_hex $data[$_])
		593	} 0.. $#$src;
		594
		595
		596	my $dbmd5 = db_get cache => "$id/md5";
		597	if ($dbmd5 eq $md5) {
		598	db_put cache => "$id/meta", $meta;
		599
		600	return db_get cache => "$id/data";
		601	}
		602	}
		603
		604	my $t1 = Time::HiRes::time;
		605	my $data = $process->(\@data);
		606	my $t2 = Time::HiRes::time;
		607
		608	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		609
		610	db_put cache => "$id/data", $data;
		611	db_put cache => "$id/md5" , $md5;
		612	db_put cache => "$id/meta", $meta;
		613
		614	return $data;
		615	}
		616
		617	db_get cache => "$id/data"
		618	}
		619
		620	=item cf::datalog type => key => value, ...
		621
		622	Log a datalog packet of the given type with the given key-value pairs.
		623
		624	=cut
		625
		626	sub datalog($@) {
		627	my ($type, %kv) = @_;
		628	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	629	}
359		630
360	=back	631	=back
361		632
362	=cut	633	=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		634
484	#############################################################################	635	#############################################################################
485		636
486	=head2 ATTACHABLE OBJECTS	637	=head2 ATTACHABLE OBJECTS
487		638
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	640	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	641	to it. All such attachable objects support the following methods.
491		642
492	In the following description, CLASS can be any of C<global>, C<object>	643	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	644	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	645	Crossfire TRT).
495		646
496	=over 4	647	=over 4
497		648
498	=item $attachable->attach ($attachment, key => $value...)	649	=item $attachable->attach ($attachment, key => $value...)
499		650
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	764	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	765	our @CB_MAP = ();
615		766
616	my %attachment;	767	my %attachment;
617		768
		769	sub cf::attachable::thawer_merge {
		770	# simply override everything except _meta
		771	local $_[0]{_meta};
		772	%{$_[0]} = %{$_[1]};
		773	}
		774
618	sub _attach_cb($$$$) {	775	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	776	my ($registry, $event, $prio, $cb) = @_;
620		777
621	use sort 'stable';	778	use sort 'stable';
622		779
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	813	$registry = $CB_TYPE[$object_type] ||= [];
657		814
658	} elsif ($type eq "subtype") {	815	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	816	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	817	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	818	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		819
663	} elsif ($type eq "package") {	820	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	821	my $pkg = shift @arg;
665		822
666	while (my ($name, $id) = each %cb_id) {	823	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	852	_attach $registry, $klass, @attach;
696	}	853	}
697		854
698	$obj->{$name} = \%arg;	855	$obj->{$name} = \%arg;
699	} else {	856	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	857	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	858	}
702		859
703	$obj->{_attachment}{$name} = undef;	860	$obj->{_attachment}{$name} = undef;
704	}	861	}
705		862
…		…
707	if (ref $_[0]) {	864	if (ref $_[0]) {
708	_object_attach @_;	865	_object_attach @_;
709	} else {	866	} else {
710	_attach shift->_attach_registry, @_;	867	_attach shift->_attach_registry, @_;
711	}	868	}
		869	_recalc_want;
712	};	870	};
713		871
714	# all those should be optimised	872	# all those should be optimised
715	sub cf::attachable::detach {	873	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	874	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	877	delete $obj->{_attachment}{$name};
720	reattach ($obj);	878	reattach ($obj);
721	} else {	879	} else {
722	Carp::croak "cannot, currently, detach class attachments";	880	Carp::croak "cannot, currently, detach class attachments";
723	}	881	}
		882	_recalc_want;
724	};	883	};
725		884
726	sub cf::attachable::attached {	885	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
728		887
…		…
743	";	902	";
744	die if $@;	903	die if $@;
745	}	904	}
746		905
747	our $override;	906	our $override;
748	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	907	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
749		908
750	sub override {	909	sub override {
751	$override = 1;	910	$override = 1;
752	@invoke_results = ();	911	@INVOKE_RESULTS = (@_);
753	}	912	}
754		913
755	sub do_invoke {	914	sub do_invoke {
756	my $event = shift;	915	my $event = shift;
757	my $callbacks = shift;	916	my $callbacks = shift;
758		917
759	@invoke_results = ();	918	@INVOKE_RESULTS = ();
760		919
761	local $override;	920	local $override;
762		921
763	for (@$callbacks) {	922	for (@$callbacks) {
764	eval { &{$_->[1]} };	923	eval { &{$_->[1]} };
…		…
781		940
782	Generate an object-specific event with the given arguments.	941	Generate an object-specific event with the given arguments.
783		942
784	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	943	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	944	removed in future versions), and there is no public API to access override
786	results (if you must, access C<@cf::invoke_results> directly).	945	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		946
788	=back	947	=back
789		948
790	=cut	949	=cut
791		950
792	#############################################################################	951	#############################################################################
793	# object support	952	# object support
		953	#
		954
		955	sub _can_merge {
		956	my ($ob1, $ob2) = @_;
		957
		958	local $Storable::canonical = 1;
		959	my $fob1 = Storable::freeze $ob1;
		960	my $fob2 = Storable::freeze $ob2;
		961
		962	$fob1 eq $fob2
		963	}
794		964
795	sub reattach {	965	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	966	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	967	my ($obj) = @_;
		968
		969	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		970
799	my $registry = $obj->registry;	971	my $registry = $obj->registry;
800		972
801	@$registry = ();	973	@$registry = ();
802		974
…		…
841	);	1013	);
842		1014
843	sub object_freezer_save {	1015	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1016	my ($filename, $rdata, $objs) = @_;
845		1017
		1018	my $guard = cf::lock_acquire "io";
		1019
846	sync_job {	1020	sync_job {
847	if (length $$rdata) {	1021	if (length $$rdata) {
848	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1023	$filename, length $$rdata, scalar @$objs;
850		1024
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1026	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1028	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1029	close $fh;
856		1030
857	if (@$objs) {	1031	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1032	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	1033	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1034	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1035	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1036	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1037	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1038	aio_rename "$filename.pst~", "$filename.pst";
865	}	1039	}
866	} else {	1040	} else {
867	aio_unlink "$filename.pst";	1041	aio_unlink "$filename.pst";
…		…
873	}	1047	}
874	} else {	1048	} else {
875	aio_unlink $filename;	1049	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
877	}	1051	}
878	}	1052	};
		1053
		1054	undef $guard;
879	}	1055	}
880		1056
881	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
883		1059
…		…
888		1064
889	sub object_thawer_load {	1065	sub object_thawer_load {
890	my ($filename) = @_;	1066	my ($filename) = @_;
891		1067
892	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
893		1071
894	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
895	or return;	1073	or return;
896		1074
897	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
899	or return;	1077	or return;
		1078
		1079	undef $guard;
900	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1081	}
902		1082
903	warn sprintf "loading %s (%d)\n",	1083	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1084	$filename, length $data, scalar @{$av || []};
		1085
905	return ($data, $av);	1086	($data, $av)
906	}	1087	}
		1088
		1089	=head2 COMMAND CALLBACKS
		1090
		1091	=over 4
		1092
		1093	=cut
907		1094
908	#############################################################################	1095	#############################################################################
909	# command handling &c	1096	# command handling &c
910		1097
911	=item cf::register_command $name => \&callback($ob,$args);	1098	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1111	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1112	}
926		1113
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1114	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1115
929	Register a callbackf ro execution when the client sends an extcmd packet.	1116	Register a callback for execution when the client sends an (synchronous)
		1117	extcmd packet. Ext commands will be processed in the order they are
		1118	received by the server, like other user commands. The first argument is
		1119	the logged-in player. Ext commands can only be processed after a player
		1120	has logged in successfully.
930		1121
931	If the callback returns something, it is sent back as if reply was being	1122	If the callback returns something, it is sent back as if reply was being
932	called.	1123	called.
933		1124
		1125	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1126
		1127	Register a callback for execution when the client sends an (asynchronous)
		1128	exticmd packet. Exti commands are processed by the server as soon as they
		1129	are received, i.e. out of order w.r.t. other commands. The first argument
		1130	is a client socket. Exti commands can be received anytime, even before
		1131	log-in.
		1132
		1133	If the callback returns something, it is sent back as if reply was being
		1134	called.
		1135
934	=cut	1136	=cut
935		1137
936	sub register_extcmd {	1138	sub register_extcmd {
937	my ($name, $cb) = @_;	1139	my ($name, $cb) = @_;
938		1140
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1141	$EXTCMD{$name} = $cb;
		1142	}
		1143
		1144	sub register_exticmd {
		1145	my ($name, $cb) = @_;
		1146
		1147	$EXTICMD{$name} = $cb;
943	}	1148	}
944		1149
945	cf::player->attach (	1150	cf::player->attach (
946	on_command => sub {	1151	on_command => sub {
947	my ($pl, $name, $params) = @_;	1152	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1161	cf::override;
957	},	1162	},
958	on_extcmd => sub {	1163	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1164	my ($pl, $buf) = @_;
960		1165
961	my $msg = eval { from_json $buf };	1166	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1167
963	if (ref $msg) {	1168	if (ref $msg) {
		1169	my ($type, $reply, @payload) =
		1170	"ARRAY" eq ref $msg
		1171	? @$msg
		1172	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1173
		1174	my @reply;
		1175
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1176	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1177	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1178	}
		1179
		1180	$pl->ext_reply ($reply, @reply)
		1181	if $reply;
		1182
969	} else {	1183	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1184	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1185	}
972		1186
973	cf::override;	1187	cf::override;
974	},	1188	},
975	);	1189	);
976		1190
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1191	sub load_extensions {
		1192	cf::sync_job {
		1193	my %todo;
		1194
		1195	for my $path (<$LIBDIR/*.ext>) {
		1196	next unless -r $path;
		1197
		1198	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1199	my $base = $1;
		1200	my $pkg = $1;
		1201	$pkg =~ s/[^[:word:]]/_/g;
		1202	$pkg = "ext::$pkg";
		1203
		1204	open my $fh, "<:utf8", $path
		1205	or die "$path: $!";
		1206
		1207	my $source = do { local $/; <$fh> };
		1208
		1209	my %ext = (
		1210	path => $path,
		1211	base => $base,
		1212	pkg => $pkg,
		1213	);
		1214
		1215	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1216	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1217
		1218	$ext{source} =
		1219	"package $pkg; use strict; use utf8;\n"
		1220	. "#line 1 \"$path\"\n{\n"
		1221	. $source
		1222	. "\n};\n1";
		1223
		1224	$todo{$base} = \%ext;
		1225	}
		1226
		1227	my %done;
		1228	while (%todo) {
		1229	my $progress;
		1230
		1231	while (my ($k, $v) = each %todo) {
		1232	for (split /,\s*/, $v->{meta}{depends}) {
		1233	goto skip
		1234	unless exists $done{$_};
		1235	}
		1236
		1237	warn "... loading '$k' into '$v->{pkg}'\n";
		1238
		1239	unless (eval $v->{source}) {
		1240	my $msg = $@ ? "$v->{path}: $@\n"
		1241	: "$v->{base}: extension inactive.\n";
		1242
		1243	if (exists $v->{meta}{mandatory}) {
		1244	warn $msg;
		1245	warn "mandatory extension failed to load, exiting.\n";
		1246	exit 1;
		1247	}
		1248
		1249	warn $msg;
		1250	}
		1251
		1252	$done{$k} = delete $todo{$k};
		1253	push @EXTS, $v->{pkg};
		1254	$progress = 1;
		1255	}
		1256
		1257	skip:
		1258	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1259	unless $progress;
		1260	}
		1261	};
		1262	}
		1263
		1264	#############################################################################
		1265
		1266	=back
		1267
		1268	=head2 CORE EXTENSIONS
		1269
		1270	Functions and methods that extend core crossfire objects.
		1271
		1272	=cut
		1273
		1274	package cf::player;
		1275
		1276	use Coro::AIO;
		1277
		1278	=head3 cf::player
		1279
		1280	=over 4
		1281
		1282	=item cf::player::num_playing
		1283
		1284	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1285
		1286	=cut
		1287
		1288	sub num_playing {
		1289	scalar grep
		1290	$_->ob->map
		1291	&& !$_->hidden
		1292	&& !$_->ob->flag (cf::FLAG_WIZ),
		1293	cf::player::list
		1294	}
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $f = new_from_file cf::object::thawer path $login
		1341	or return;
		1342
		1343	$f->next;
		1344	my $pl = cf::player::load_pl $f
		1345	or return;
		1346	local $cf::PLAYER_LOADING{$login} = $pl;
		1347	$f->resolve_delayed_derefs;
		1348	$cf::PLAYER{$login} = $pl
		1349	}
		1350	}
		1351	}
		1352
		1353	sub save($) {
		1354	my ($pl) = @_;
		1355
		1356	return if $pl->{deny_save};
		1357
		1358	my $path = path $pl;
		1359	my $guard = cf::lock_acquire "user_save:$path";
		1360
		1361	return if $pl->{deny_save};
		1362
		1363	aio_mkdir playerdir $pl, 0770;
		1364	$pl->{last_save} = $cf::RUNTIME;
		1365
		1366	$pl->save_pl ($path);
		1367	cf::cede_to_tick;
		1368	}
		1369
		1370	sub new($) {
		1371	my ($login) = @_;
		1372
		1373	my $self = create;
		1374
		1375	$self->ob->name ($login);
		1376	$self->{deny_save} = 1;
		1377
		1378	$cf::PLAYER{$login} = $self;
		1379
		1380	$self
		1381	}
		1382
		1383	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1384
		1385	=cut
		1386
		1387	sub send_msg {
		1388	my $ns = shift->ns
		1389	or return;
		1390	$ns->send_msg (@_);
		1391	}
		1392
		1393	=item $pl->quit_character
		1394
		1395	Nukes the player without looking back. If logged in, the connection will
		1396	be destroyed. May block for a long time.
		1397
		1398	=cut
		1399
		1400	sub quit_character {
		1401	my ($pl) = @_;
		1402
		1403	my $name = $pl->ob->name;
		1404
		1405	$pl->{deny_save} = 1;
		1406	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1407
		1408	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1409	$pl->deactivate;
		1410	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1411	$pl->ns->destroy if $pl->ns;
		1412
		1413	my $path = playerdir $pl;
		1414	my $temp = "$path~$cf::RUNTIME~deleting~";
		1415	aio_rename $path, $temp;
		1416	delete $cf::PLAYER{$pl->ob->name};
		1417	$pl->destroy;
		1418
		1419	my $prefix = qr<^~\Q$name\E/>;
		1420
		1421	# nuke player maps
		1422	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1423
		1424	IO::AIO::aio_rmtree $temp;
		1425	}
		1426
		1427	=item $pl->kick
		1428
		1429	Kicks a player out of the game. This destroys the connection.
		1430
		1431	=cut
		1432
		1433	sub kick {
		1434	my ($pl, $kicker) = @_;
		1435
		1436	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1437	$pl->killer ("kicked");
		1438	$pl->ns->destroy;
		1439	}
		1440
		1441	=item cf::player::list_logins
		1442
		1443	Returns am arrayref of all valid playernames in the system, can take a
		1444	while and may block, so not sync_job-capable, ever.
		1445
		1446	=cut
		1447
		1448	sub list_logins {
		1449	my $dirs = aio_readdir $PLAYERDIR
		1450	or return [];
		1451
		1452	my @logins;
		1453
		1454	for my $login (@$dirs) {
		1455	my $path = path $login;
		1456
		1457	# a .pst is a dead give-away for a valid player
		1458	unless (-e "$path.pst") {
		1459	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1460	aio_read $fh, 0, 512, my $buf, 0 or next;
		1461	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1462	}
		1463
		1464	utf8::decode $login;
		1465	push @logins, $login;
		1466	}
		1467
		1468	\@logins
		1469	}
		1470
		1471	=item $player->maps
		1472
		1473	Returns an arrayref of map paths that are private for this
		1474	player. May block.
		1475
		1476	=cut
		1477
		1478	sub maps($) {
		1479	my ($pl) = @_;
		1480
		1481	$pl = ref $pl ? $pl->ob->name : $pl;
		1482
		1483	my $files = aio_readdir playerdir $pl
		1484	or return;
		1485
		1486	my @paths;
		1487
		1488	for (@$files) {
		1489	utf8::decode $_;
		1490	next if /\.(?:pl|pst)$/;
		1491	next unless /^$PATH_SEP/o;
		1492
		1493	push @paths, cf::map::normalise "~$pl/$_";
		1494	}
		1495
		1496	\@paths
		1497	}
		1498
		1499	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1500
		1501	Expand crossfire pod fragments into protocol xml.
		1502
		1503	=cut
		1504
		1505	sub expand_cfpod {
		1506	((my $self), (local $_)) = @_;
		1507
		1508	# escape & and <
		1509	s/&/&amp;/g;
		1510	s/(?<![BIUGHT])</&lt;/g;
		1511
		1512	# this is buggy, it needs to properly take care of nested <'s
		1513
		1514	1 while
		1515	# replace B<>, I<>, U<> etc.
		1516	s/B<([^\>]*)>/<b>$1<\/b>/
		1517	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1518	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1519	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1520	# replace G<male|female> tags
		1521	|| s{G<([^>|]*)\|([^>]*)>}{
		1522	$self->gender ? $2 : $1
		1523	}ge
		1524	# replace H<hint text>
		1525	|| s{H<([^\>]*)>}
		1526	{
		1527	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1528	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1529	"")
		1530	[$self->{hintmode}]
		1531	}ge;
		1532
		1533	# create single paragraphs (very hackish)
		1534	s/(?<=\S)\n(?=\w)/ /g;
		1535
		1536	# compress some whitespace
		1537	s/\s+\n/\n/g; # ws line-ends
		1538	s/\n\n+/\n/g; # double lines
		1539	s/^\n+//; # beginning lines
		1540	s/\n+$//; # ending lines
		1541
		1542	$_
		1543	}
		1544
		1545	sub hintmode {
		1546	$_[0]{hintmode} = $_[1] if @_ > 1;
		1547	$_[0]{hintmode}
		1548	}
		1549
		1550	=item $player->ext_reply ($msgid, @msg)
		1551
		1552	Sends an ext reply to the player.
		1553
		1554	=cut
		1555
		1556	sub ext_reply($$@) {
		1557	my ($self, $id, @msg) = @_;
		1558
		1559	$self->ns->ext_reply ($id, @msg)
		1560	}
		1561
		1562	=item $player->ext_msg ($type, @msg)
		1563
		1564	Sends an ext event to the client.
		1565
		1566	=cut
		1567
		1568	sub ext_msg($$@) {
		1569	my ($self, $type, @msg) = @_;
		1570
		1571	$self->ns->ext_msg ($type, @msg);
		1572	}
		1573
		1574	=head3 cf::region
		1575
		1576	=over 4
		1577
		1578	=cut
		1579
		1580	package cf::region;
		1581
		1582	=item cf::region::find_by_path $path
		1583
		1584	Tries to decuce the likely region for a map knowing only its path.
		1585
		1586	=cut
		1587
		1588	sub find_by_path($) {
984	my ($path) = @_;	1589	my ($path) = @_;
985		1590
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1591	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1592
992	warn "loading '$path' into '$pkg'\n";	1593	for my $region (list) {
993		1594	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1595	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1596	if $region->specificity > $specificity;
996		1597	}
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	# }	1598	}
1026		1599
1027	# remove commands	1600	$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	}	1601	}
1133		1602
1134	=back	1603	=back
1135
1136		1604
1137	=head3 cf::map	1605	=head3 cf::map
1138		1606
1139	=over 4	1607	=over 4
1140		1608
…		…
1143	package cf::map;	1611	package cf::map;
1144		1612
1145	use Fcntl;	1613	use Fcntl;
1146	use Coro::AIO;	1614	use Coro::AIO;
1147		1615
		1616	use overload
		1617	'""' => \&as_string,
		1618	fallback => 1;
		1619
1148	our $MAX_RESET = 3600;	1620	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1621	our $DEFAULT_RESET = 3000;
1150		1622
1151	sub generate_random_map {	1623	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1624	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1625	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1626	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1627	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1628	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1629	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1630	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1631	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1632	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1633	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1634	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1635	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1636	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1637	(cf::region::find $rmp->{region}), $rmp->{custom}
		1638	)
		1639	}
		1640
		1641	=item cf::map->register ($regex, $prio)
		1642
		1643	Register a handler for the map path matching the given regex at the
		1644	givne priority (higher is better, built-in handlers have priority 0, the
		1645	default).
		1646
		1647	=cut
		1648
		1649	sub register {
		1650	my (undef, $regex, $prio) = @_;
		1651	my $pkg = caller;
		1652
		1653	no strict;
		1654	push @{"$pkg\::ISA"}, __PACKAGE__;
		1655
		1656	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1657	}
		1658
		1659	# also paths starting with '/'
		1660	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1661
		1662	sub thawer_merge {
		1663	my ($self, $merge) = @_;
		1664
		1665	# we have to keep some variables in memory intact
		1666	local $self->{path};
		1667	local $self->{load_path};
		1668
		1669	$self->SUPER::thawer_merge ($merge);
		1670	}
		1671
		1672	sub normalise {
		1673	my ($path, $base) = @_;
		1674
		1675	$path = "$path"; # make sure its a string
		1676
		1677	$path =~ s/\.map$//;
		1678
		1679	# map plan:
		1680	#
		1681	# /! non-realised random map exit (special hack!)
		1682	# {... are special paths that are not being touched
		1683	# ?xxx/... are special absolute paths
		1684	# ?random/... random maps
		1685	# /... normal maps
		1686	# ~user/... per-player map of a specific user
		1687
		1688	$path =~ s/$PATH_SEP/\//go;
		1689
		1690	# treat it as relative path if it starts with
		1691	# something that looks reasonable
		1692	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1693	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1694
		1695	$base =~ s{[^/]+/?$}{};
		1696	$path = "$base/$path";
		1697	}
		1698
		1699	for ($path) {
		1700	redo if s{//}{/};
		1701	redo if s{/\.?/}{/};
		1702	redo if s{/[^/]+/\.\./}{/};
		1703	}
		1704
		1705	$path
		1706	}
		1707
		1708	sub new_from_path {
		1709	my (undef, $path, $base) = @_;
		1710
		1711	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1712
		1713	$path = normalise $path, $base;
		1714
		1715	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1716	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1717	my $self = bless cf::map::new, $pkg;
		1718	$self->{path} = $path; $self->path ($path);
		1719	$self->init; # pass $1 etc.
		1720	return $self;
		1721	}
		1722	}
		1723
		1724	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1725	()
		1726	}
		1727
		1728	sub init {
		1729	my ($self) = @_;
		1730
		1731	$self
		1732	}
		1733
		1734	sub as_string {
		1735	my ($self) = @_;
		1736
		1737	"$self->{path}"
		1738	}
		1739
		1740	# the displayed name, this is a one way mapping
		1741	sub visible_name {
		1742	&as_string
		1743	}
		1744
		1745	# the original (read-only) location
		1746	sub load_path {
		1747	my ($self) = @_;
		1748
		1749	"$MAPDIR/$self->{path}.map"
		1750	}
		1751
		1752	# the temporary/swap location
		1753	sub save_path {
		1754	my ($self) = @_;
		1755
		1756	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1757	"$TMPDIR/$path.map"
		1758	}
		1759
		1760	# the unique path, undef == no special unique path
		1761	sub uniq_path {
		1762	my ($self) = @_;
		1763
		1764	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1765	"$UNIQUEDIR/$path"
1168	}	1766	}
1169		1767
1170	# and all this just because we cannot iterate over	1768	# and all this just because we cannot iterate over
1171	# all maps in C++...	1769	# all maps in C++...
1172	sub change_all_map_light {	1770	sub change_all_map_light {
…		…
1174		1772
1175	$_->change_map_light ($change)	1773	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1774	for grep $_->outdoor, values %cf::MAP;
1177	}	1775	}
1178		1776
		1777	sub decay_objects {
		1778	my ($self) = @_;
		1779
		1780	return if $self->{deny_reset};
		1781
		1782	$self->do_decay_objects;
		1783	}
		1784
		1785	sub unlink_save {
		1786	my ($self) = @_;
		1787
		1788	utf8::encode (my $save = $self->save_path);
		1789	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1790	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1791	}
		1792
1179	sub try_load_header($) {	1793	sub load_header_from($) {
1180	my ($path) = @_;	1794	my ($self, $path) = @_;
1181		1795
1182	utf8::encode $path;	1796	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1797	my $f = new_from_file cf::object::thawer $path
1184	or return;	1798	or return;
1185		1799
1186	my $map = cf::map::new	1800	$self->_load_header ($f)
1187	or return;	1801	or return;
1188		1802
1189	$map->load_header ($path)	1803	local $MAP_LOADING{$self->{path}} = $self;
		1804	$f->resolve_delayed_derefs;
		1805
		1806	$self->{load_path} = $path;
		1807
		1808	1
		1809	}
		1810
		1811	sub load_header_orig {
		1812	my ($self) = @_;
		1813
		1814	$self->load_header_from ($self->load_path)
		1815	}
		1816
		1817	sub load_header_temp {
		1818	my ($self) = @_;
		1819
		1820	$self->load_header_from ($self->save_path)
		1821	}
		1822
		1823	sub prepare_temp {
		1824	my ($self) = @_;
		1825
		1826	$self->last_access ((delete $self->{last_access})
		1827	|| $cf::RUNTIME); #d#
		1828	# safety
		1829	$self->{instantiate_time} = $cf::RUNTIME
		1830	if $self->{instantiate_time} > $cf::RUNTIME;
		1831	}
		1832
		1833	sub prepare_orig {
		1834	my ($self) = @_;
		1835
		1836	$self->{load_original} = 1;
		1837	$self->{instantiate_time} = $cf::RUNTIME;
		1838	$self->last_access ($cf::RUNTIME);
		1839	$self->instantiate;
		1840	}
		1841
		1842	sub load_header {
		1843	my ($self) = @_;
		1844
		1845	if ($self->load_header_temp) {
		1846	$self->prepare_temp;
		1847	} else {
		1848	$self->load_header_orig
1190	or return;	1849	or return;
		1850	$self->prepare_orig;
		1851	}
1191		1852
1192	$map->{load_path} = $path;	1853	$self->{deny_reset} = 1
		1854	if $self->no_reset;
1193		1855
1194	$map	1856	$self->default_region (cf::region::find_by_path $self->{path})
		1857	unless $self->default_region;
		1858
		1859	1
1195	}	1860	}
1196		1861
1197	sub find;	1862	sub find;
1198	sub find {	1863	sub find {
1199	my ($path, $origin) = @_;	1864	my ($path, $origin) = @_;
1200		1865
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1866	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1867
		1868	cf::lock_wait "map_data:$path";#d#remove
1206	cf::lock_wait "map_find:$key";	1869	cf::lock_wait "map_find:$path";
1207		1870
1208	$cf::MAP{$key} || do {	1871	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1872	my $guard1 = cf::lock_acquire "map_find:$path";
		1873	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1210		1874
1211	# do it the slow way	1875	my $map = new_from_path cf::map $path
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1876	or return;
1228		1877
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1878	$map->{last_save} = $cf::RUNTIME;
1241		1879
1242	if ($map->should_reset) {	1880	$map->load_header
		1881	or return;
		1882
		1883	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1884	# doing this can freeze the server in a sync job, obviously
		1885	#$cf::WAIT_FOR_TICK->wait;
		1886	undef $guard1;
		1887	undef $guard2;
1243	$map->reset;	1888	$map->reset;
1244	undef $guard;
1245	$map = find $path	1889	return find $path;
1246	or return;
1247	}	1890	}
1248		1891
1249	$cf::MAP{$key} = $map	1892	$cf::MAP{$path} = $map
1250	}	1893	}
1251	}	1894	}
		1895
		1896	sub pre_load { }
		1897	sub post_load { }
1252		1898
1253	sub load {	1899	sub load {
1254	my ($self) = @_;	1900	my ($self) = @_;
1255		1901
		1902	local $self->{deny_reset} = 1; # loading can take a long time
		1903
1256	my $path = $self->{path};	1904	my $path = $self->{path};
		1905
		1906	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1907	my $guard = cf::lock_acquire "map_data:$path";
1258		1908
		1909	return unless $self->valid;
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1910	return unless $self->in_memory == cf::MAP_SWAPPED;
1260		1911
1261	$self->in_memory (cf::MAP_LOADING);	1912	$self->in_memory (cf::MAP_LOADING);
1262		1913
1263	$self->alloc;	1914	$self->alloc;
1264	$self->load_objects ($self->{load_path}, 1)	1915
		1916	$self->pre_load;
		1917	cf::cede_to_tick;
		1918
		1919	my $f = new_from_file cf::object::thawer $self->{load_path};
		1920	$f->skip_block;
		1921	$self->_load_objects ($f)
1265	or return;	1922	or return;
1266		1923
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1924	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1925	if delete $self->{load_original};
1269		1926
1270	if (my $uniq = $path->uniq_path) {	1927	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1928	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1929	unless (aio_stat $uniq) {
		1930	if (my $f = new_from_file cf::object::thawer $uniq) {
1273	$self->clear_unique_items;	1931	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1932	$self->_load_objects ($f);
		1933	$f->resolve_delayed_derefs;
		1934	}
1275	}	1935	}
1276	}	1936	}
1277		1937
		1938	$f->resolve_delayed_derefs;
		1939
		1940	cf::cede_to_tick;
1278	# now do the right thing for maps	1941	# now do the right thing for maps
1279	$self->link_multipart_objects;	1942	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1943	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1944	unless $self->difficulty;
		1945	cf::cede_to_tick;
		1946
		1947	unless ($self->{deny_activate}) {
		1948	$self->decay_objects;
		1949	$self->fix_auto_apply;
		1950	$self->update_buttons;
		1951	cf::cede_to_tick;
		1952	$self->set_darkness_map;
		1953	cf::cede_to_tick;
1291	$self->activate;	1954	$self->activate;
1292	}	1955	}
1293		1956
		1957	$self->{last_save} = $cf::RUNTIME;
		1958	$self->last_access ($cf::RUNTIME);
		1959
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1960	$self->in_memory (cf::MAP_IN_MEMORY);
		1961	}
		1962
		1963	$self->post_load;
		1964	}
		1965
		1966	sub customise_for {
		1967	my ($self, $ob) = @_;
		1968
		1969	return find "~" . $ob->name . "/" . $self->{path}
		1970	if $self->per_player;
		1971
		1972	# return find "?party/" . $ob->name . "/" . $self->{path}
		1973	# if $self->per_party;
		1974
		1975	$self
		1976	}
		1977
		1978	# find and load all maps in the 3x3 area around a map
		1979	sub load_neighbours {
		1980	my ($map) = @_;
		1981
		1982	my @neigh; # diagonal neighbours
		1983
		1984	for (0 .. 3) {
		1985	my $neigh = $map->tile_path ($_)
		1986	or next;
		1987	$neigh = find $neigh, $map
		1988	or next;
		1989	$neigh->load;
		1990
		1991	push @neigh,
		1992	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1993	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1994	}
		1995
		1996	for (grep defined $_->[0], @neigh) {
		1997	my ($path, $origin) = @$_;
		1998	my $neigh = find $path, $origin
		1999	or next;
		2000	$neigh->load;
		2001	}
1295	}	2002	}
1296		2003
1297	sub find_sync {	2004	sub find_sync {
1298	my ($path, $origin) = @_;	2005	my ($path, $origin) = @_;
1299		2006
1300	cf::sync_job { cf::map::find $path, $origin }	2007	cf::sync_job { find $path, $origin }
1301	}	2008	}
1302		2009
1303	sub do_load_sync {	2010	sub do_load_sync {
1304	my ($map) = @_;	2011	my ($map) = @_;
1305		2012
		2013	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2014	if $Coro::current == $Coro::main;
		2015
1306	cf::sync_job { $map->load };	2016	cf::sync_job { $map->load };
		2017	}
		2018
		2019	our %MAP_PREFETCH;
		2020	our $MAP_PREFETCHER = undef;
		2021
		2022	sub find_async {
		2023	my ($path, $origin, $load) = @_;
		2024
		2025	$path = normalise $path, $origin && $origin->{path};
		2026
		2027	if (my $map = $cf::MAP{$path}) {
		2028	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2029	}
		2030
		2031	$MAP_PREFETCH{$path} |= $load;
		2032
		2033	$MAP_PREFETCHER ||= cf::async {
		2034	while (%MAP_PREFETCH) {
		2035	while (my ($k, $v) = each %MAP_PREFETCH) {
		2036	if (my $map = find $k) {
		2037	$map->load if $v;
		2038	}
		2039
		2040	delete $MAP_PREFETCH{$k};
		2041	}
		2042	}
		2043	undef $MAP_PREFETCHER;
		2044	};
		2045	$MAP_PREFETCHER->prio (6);
		2046
		2047	()
1307	}	2048	}
1308		2049
1309	sub save {	2050	sub save {
1310	my ($self) = @_;	2051	my ($self) = @_;
1311		2052
		2053	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2054
1312	$self->{last_save} = $cf::RUNTIME;	2055	$self->{last_save} = $cf::RUNTIME;
1313		2056
1314	return unless $self->dirty;	2057	return unless $self->dirty;
1315		2058
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2059	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2060	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2061
1319	$self->{load_path} = $save;	2062	$self->{load_path} = $save;
1320		2063
1321	return if $self->{deny_save};	2064	return if $self->{deny_save};
1322		2065
1323	local $self->{last_access} = $self->last_access;#d#	2066	local $self->{last_access} = $self->last_access;#d#
1324		2067
		2068	cf::async {
		2069	$_->contr->save for $self->players;
		2070	};
		2071
1325	if ($uniq) {	2072	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2073	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2074	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2075	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2076	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2077	}
1331	}	2078	}
1332		2079
1333	sub swap_out {	2080	sub swap_out {
1334	my ($self) = @_;	2081	my ($self) = @_;
1335		2082
1336	# save first because save cedes	2083	# save first because save cedes
1337	$self->save;	2084	$self->save;
		2085
		2086	my $lock = cf::lock_acquire "map_data:$self->{path}";
1338		2087
1339	return if $self->players;	2088	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2089	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	2090	return if $self->{deny_save};
1342		2091
		2092	$self->in_memory (cf::MAP_SWAPPED);
		2093
		2094	$self->deactivate;
		2095	$_->clear_links_to ($self) for values %cf::MAP;
1343	$self->clear;	2096	$self->clear;
1344	$self->in_memory (cf::MAP_SWAPPED);
1345	}	2097	}
1346		2098
1347	sub reset_at {	2099	sub reset_at {
1348	my ($self) = @_;	2100	my ($self) = @_;
1349		2101
1350	# TODO: safety, remove and allow resettable per-player maps	2102	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2103	return 1e99 if $self->{deny_reset};
1353		2104
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2105	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2106	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2107
…		…
1361	my ($self) = @_;	2112	my ($self) = @_;
1362		2113
1363	$self->reset_at <= $cf::RUNTIME	2114	$self->reset_at <= $cf::RUNTIME
1364	}	2115	}
1365		2116
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2117	sub reset {
1388	my ($self) = @_;	2118	my ($self) = @_;
1389		2119
		2120	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2121
1390	return if $self->players;	2122	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2123
1393	warn "resetting map ", $self->path;#d#	2124	warn "resetting map ", $self->path;
		2125
		2126	$self->in_memory (cf::MAP_SWAPPED);
		2127
		2128	# need to save uniques path
		2129	unless ($self->{deny_save}) {
		2130	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2131
		2132	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2133	if $uniq;
		2134	}
1394		2135
1395	delete $cf::MAP{$self->path};	2136	delete $cf::MAP{$self->path};
1396		2137
		2138	$self->deactivate;
1397	$_->clear_links_to ($self) for values %cf::MAP;	2139	$_->clear_links_to ($self) for values %cf::MAP;
		2140	$self->clear;
1398		2141
1399	$self->unlink_save;	2142	$self->unlink_save;
1400	$self->destroy;	2143	$self->destroy;
1401	}	2144	}
1402		2145
1403	my $nuke_counter = "aaaa";	2146	my $nuke_counter = "aaaa";
1404		2147
1405	sub nuke {	2148	sub nuke {
1406	my ($self) = @_;	2149	my ($self) = @_;
1407		2150
		2151	{
		2152	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2153
		2154	delete $cf::MAP{$self->path};
		2155
		2156	$self->unlink_save;
		2157
		2158	bless $self, "cf::map";
		2159	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2160	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2161	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2162	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2163
		2164	$cf::MAP{$self->path} = $self;
		2165	}
		2166
1411	$self->reset; # polite request, might not happen	2167	$self->reset; # polite request, might not happen
1412	}	2168	}
1413		2169
1414	sub customise_for {	2170	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2171
1417	if ($map->per_player) {	2172	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2173	maps. May block.
		2174
		2175	=cut
		2176
		2177	sub tmp_maps() {
1419	}	2178	[
1420		2179	map {
1421	$map	2180	utf8::decode $_;
		2181	/\.map$/
		2182	? normalise $_
		2183	: ()
		2184	} @{ aio_readdir $TMPDIR or [] }
		2185	]
1422	}	2186	}
1423		2187
1424	sub emergency_save {	2188	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2189
1427	warn "enter emergency map save\n";	2190	Returns an arrayref with all map paths of currently instantiated and saved
		2191	random maps. May block.
1428		2192
1429	cf::sync_job {	2193	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2194
1434	warn "end emergency map save\n";	2195	sub random_maps() {
		2196	[
		2197	map {
		2198	utf8::decode $_;
		2199	/\.map$/
		2200	? normalise "?random/$_"
		2201	: ()
		2202	} @{ aio_readdir $RANDOMDIR or [] }
		2203	]
		2204	}
		2205
		2206	=item cf::map::unique_maps
		2207
		2208	Returns an arrayref of paths of all shared maps that have
		2209	instantiated unique items. May block.
		2210
		2211	=cut
		2212
		2213	sub unique_maps() {
		2214	[
		2215	map {
		2216	utf8::decode $_;
		2217	/\.map$/
		2218	? normalise $_
		2219	: ()
		2220	} @{ aio_readdir $UNIQUEDIR or [] }
		2221	]
1435	}	2222	}
1436		2223
1437	package cf;	2224	package cf;
1438		2225
1439	=back	2226	=back
1440		2227
		2228	=head3 cf::object
		2229
		2230	=cut
		2231
		2232	package cf::object;
		2233
		2234	=over 4
		2235
		2236	=item $ob->inv_recursive
		2237
		2238	Returns the inventory of the object _and_ their inventories, recursively.
		2239
		2240	=cut
		2241
		2242	sub inv_recursive_;
		2243	sub inv_recursive_ {
		2244	map { $_, inv_recursive_ $_->inv } @_
		2245	}
		2246
		2247	sub inv_recursive {
		2248	inv_recursive_ inv $_[0]
		2249	}
		2250
		2251	=item $ref = $ob->ref
		2252
		2253	creates and returns a persistent reference to an objetc that can be stored as a string.
		2254
		2255	=item $ob = cf::object::deref ($refstring)
		2256
		2257	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2258	even if the object actually exists. May block.
		2259
		2260	=cut
		2261
		2262	sub deref {
		2263	my ($ref) = @_;
		2264
		2265	# temporary compatibility#TODO#remove
		2266	$ref =~ s{^<}{player/<};
		2267
		2268	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2269	my ($uuid, $name) = ($1, $2);
		2270	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2271	or return;
		2272	$pl->ob->uuid eq $uuid
		2273	or return;
		2274
		2275	$pl->ob
		2276	} else {
		2277	warn "$ref: cannot resolve object reference\n";
		2278	undef
		2279	}
		2280	}
		2281
		2282	package cf;
		2283
		2284	=back
1441		2285
1442	=head3 cf::object::player	2286	=head3 cf::object::player
1443		2287
1444	=over 4	2288	=over 4
1445		2289
…		…
1459		2303
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2304	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2305
1462	if ($self->{record_replies}) {	2306	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2307	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2308
1464	} else {	2309	} else {
		2310	my $pl = $self->contr;
		2311
		2312	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2313	my $dialog = $pl->{npc_dialog};
		2314	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2315
		2316	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2317	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2318	$self->message ($msg, $flags);
		2319	}
1467	}	2320	}
		2321	}
		2322
		2323	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2324
		2325	=cut
		2326
		2327	sub cf::object::send_msg {
		2328	my $pl = shift->contr
		2329	or return;
		2330	$pl->send_msg (@_);
1468	}	2331	}
1469		2332
1470	=item $player_object->may ("access")	2333	=item $player_object->may ("access")
1471		2334
1472	Returns wether the given player is authorized to access resource "access"	2335	Returns wether the given player is authorized to access resource "access"
…		…
1485		2348
1486	=item $player_object->enter_link	2349	=item $player_object->enter_link
1487		2350
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2351	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2352
1490	The player should be reaosnably safe there for short amounts of time. You	2353	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	2354	I<MUST> call C<leave_link> as soon as possible, though.
1492		2355
		2356	Will never block.
		2357
1493	=item $player_object->leave_link ($map, $x, $y)	2358	=item $player_object->leave_link ($map, $x, $y)
1494		2359
1495	Moves the player out of the specila link map onto the given map. If the	2360	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2361	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2362	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2363	fails, to the emergency map position.
1499		2364
1500	Might block.	2365	Might block.
1501		2366
1502	=cut	2367	=cut
		2368
		2369	sub link_map {
		2370	unless ($LINK_MAP) {
		2371	$LINK_MAP = cf::map::find "{link}"
		2372	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2373	$LINK_MAP->load;
		2374	}
		2375
		2376	$LINK_MAP
		2377	}
1503		2378
1504	sub cf::object::player::enter_link {	2379	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2380	my ($self) = @_;
1506		2381
1507	$self->deactivate_recursive;	2382	$self->deactivate_recursive;
1508		2383
1509	return if $self->map == $LINK_MAP;	2384	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2385
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2386	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2387	if $self->map && $self->map->{path} ne "{link}";
1513		2388
1514	$self->enter_map ($LINK_MAP, 20, 20);	2389	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2390	}
1516		2391
1517	sub cf::object::player::leave_link {	2392	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2393	my ($self, $map, $x, $y) = @_;
		2394
		2395	return unless $self->contr->active;
1519		2396
1520	my $link_pos = delete $self->{_link_pos};	2397	my $link_pos = delete $self->{_link_pos};
1521		2398
1522	unless ($map) {	2399	unless ($map) {
1523	# restore original map position	2400	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2414	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2415	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2416	if $x <=0 && $y <= 0;
1540		2417
1541	$map->load;	2418	$map->load;
		2419	$map->load_neighbours;
1542		2420
		2421	return unless $self->contr->active;
1543	$self->activate_recursive;	2422	$self->activate_recursive;
		2423
		2424	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2425	$self->enter_map ($map, $x, $y);
1545	}	2426	}
1546		2427
1547	cf::player->attach (	2428	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2429
1551	# abort map switching before logout	2430	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2431	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2432	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2433	the new (success) or old (failed) map position. In either case, $done will
1555	};	2434	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2435
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2436	=cut
1578		2437
		2438	our $GOTOGEN;
		2439
1579	sub cf::object::player::goto_map {	2440	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2441	my ($self, $path, $x, $y, $check, $done) = @_;
		2442
		2443	# do generation counting so two concurrent goto's will be executed in-order
		2444	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2445
1582	$self->enter_link;	2446	$self->enter_link;
1583		2447
1584	(cf::async {	2448	(async {
1585	$path = new cf::path $path;	2449	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2450	my $map = cf::map::find $path;
		2451
		2452	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2453	$map = $map->customise_for ($self);
1589		2454	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2455	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2456	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2457	}
1594		2458
		2459	$map
		2460	};
		2461
		2462	if ($@) {
		2463	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2464	LOG llevError | logBacktrace, Carp::longmess $@;
		2465	}
		2466
		2467	if ($gen == $self->{_goto_generation}) {
		2468	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2469	$self->leave_link ($map, $x, $y);
		2470	}
		2471
		2472	$done->() if $done;
1596	})->prio (1);	2473	})->prio (1);
1597	}	2474	}
1598		2475
1599	=item $player_object->enter_exit ($exit_object)	2476	=item $player_object->enter_exit ($exit_object)
1600		2477
…		…
1602		2479
1603	sub parse_random_map_params {	2480	sub parse_random_map_params {
1604	my ($spec) = @_;	2481	my ($spec) = @_;
1605		2482
1606	my $rmp = { # defaults	2483	my $rmp = { # defaults
1607	xsize => 10,	2484	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2485	ysize => (cf::rndm 15, 40),
		2486	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2487	#layout => string,
1609	};	2488	};
1610		2489
1611	for (split /\n/, $spec) {	2490	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2491	my ($k, $v) = split /\s+/, $_, 2;
1613		2492
…		…
1617	$rmp	2496	$rmp
1618	}	2497	}
1619		2498
1620	sub prepare_random_map {	2499	sub prepare_random_map {
1621	my ($exit) = @_;	2500	my ($exit) = @_;
		2501
		2502	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2503
1623	# all this does is basically replace the /! path by	2504	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2505	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2506	# that depends on the exit object
1626		2507
1627	my $rmp = parse_random_map_params $exit->msg;	2508	my $rmp = parse_random_map_params $exit->msg;
1628		2509
1629	if ($exit->map) {	2510	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2511	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2512	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2513	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2514	$rmp->{origin_y} = $exit->y;
1634	}	2515	}
1635		2516
1636	$rmp->{random_seed} ||= $exit->random_seed;	2517	$rmp->{random_seed} ||= $exit->random_seed;
1637		2518
1638	my $data = cf::to_json $rmp;	2519	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2520	my $md5 = Digest::MD5::md5_hex $data;
		2521	my $meta = "$RANDOMDIR/$md5.meta";
1640		2522
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2523	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2524	aio_write $fh, 0, (length $data), $data, 0;
		2525	undef $fh;
		2526	aio_rename "$meta~", $meta;
1643		2527
1644	$exit->slaying ("?random/$md5");	2528	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2529	$exit->msg (undef);
1646	}	2530	}
1647	}	2531	}
…		…
1649	sub cf::object::player::enter_exit {	2533	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2534	my ($self, $exit) = @_;
1651		2535
1652	return unless $self->type == cf::PLAYER;	2536	return unless $self->type == cf::PLAYER;
1653		2537
		2538	if ($exit->slaying eq "/!") {
		2539	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2540	# the problem is that $exit might not survive long enough
		2541	# so it needs to be done right now, right here
		2542	cf::sync_job { prepare_random_map $exit };
		2543	}
		2544
		2545	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2546	my $hp = $exit->stats->hp;
		2547	my $sp = $exit->stats->sp;
		2548
1654	$self->enter_link;	2549	$self->enter_link;
1655		2550
		2551	# if exit is damned, update players death & WoR home-position
		2552	$self->contr->savebed ($slaying, $hp, $sp)
		2553	if $exit->flag (FLAG_DAMNED);
		2554
1656	(cf::async {	2555	(async {
1657	$self->deactivate_recursive; # just to be sure	2556	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2557	unless (eval {
1659	prepare_random_map $exit	2558	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2559
1665	1;	2560	1;
1666	}) {	2561	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2562	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2563	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2564	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2565	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2566
1672	warn "ERROR in enter_exit: $@";	2567	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2568	$self->leave_link;
1674	}	2569	}
1675	})->prio (1);	2570	})->prio (1);
…		…
1688		2583
1689	sub cf::client::send_drawinfo {	2584	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2585	my ($self, $text, $flags) = @_;
1691		2586
1692	utf8::encode $text;	2587	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2588	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2589	}
1695		2590
		2591	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2592
		2593	Send a drawinfo or msg packet to the client, formatting the msg for the
		2594	client if neccessary. C<$type> should be a string identifying the type of
		2595	the message, with C<log> being the default. If C<$color> is negative, suppress
		2596	the message unless the client supports the msg packet.
		2597
		2598	=cut
		2599
		2600	our %CHANNEL = (
		2601	"c/identify" => {
		2602	id => "identify",
		2603	title => "Identify",
		2604	reply => undef,
		2605	tooltip => "Items recently identified",
		2606	},
		2607	"c/examine" => {
		2608	id => "examine",
		2609	title => "Examine",
		2610	reply => undef,
		2611	tooltip => "Signs and other items you examined",
		2612	},
		2613	);
		2614
		2615	sub cf::client::send_msg {
		2616	my ($self, $channel, $msg, $color, @extra) = @_;
		2617
		2618	$msg = $self->pl->expand_cfpod ($msg);
		2619
		2620	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2621
		2622	# check predefined channels, for the benefit of C
		2623	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2624
		2625	if (ref $channel) {
		2626	# send meta info to client, if not yet sent
		2627	unless (exists $self->{channel}{$channel->{id}}) {
		2628	$self->{channel}{$channel->{id}} = $channel;
		2629	$self->ext_msg (channel_info => $channel)
		2630	if $self->can_msg;
		2631	}
		2632
		2633	$channel = $channel->{id};
		2634	}
		2635
		2636	return unless @extra || length $msg;
		2637
		2638	if ($self->can_msg) {
		2639	# default colour, mask it out
		2640	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2641	if $color & cf::NDI_DEF;
		2642
		2643	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2644	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2645	} else {
		2646	if ($color >= 0) {
		2647	# replace some tags by gcfclient-compatible ones
		2648	for ($msg) {
		2649	1 while
		2650	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2651	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2652	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2653	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2654	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2655	}
		2656
		2657	$color &= cf::NDI_COLOR_MASK;
		2658
		2659	utf8::encode $msg;
		2660
		2661	if (0 && $msg =~ /\[/) {
		2662	# COMMAND/INFO
		2663	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2664	} else {
		2665	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2666	$self->send_packet ("drawinfo $color $msg")
		2667	}
		2668	}
		2669	}
		2670	}
		2671
		2672	=item $client->ext_msg ($type, @msg)
		2673
		2674	Sends an ext event to the client.
		2675
		2676	=cut
		2677
		2678	sub cf::client::ext_msg($$@) {
		2679	my ($self, $type, @msg) = @_;
		2680
		2681	if ($self->extcmd == 2) {
		2682	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2683	} elsif ($self->extcmd == 1) { # TODO: remove
		2684	push @msg, msgtype => "event_$type";
		2685	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2686	}
		2687	}
		2688
		2689	=item $client->ext_reply ($msgid, @msg)
		2690
		2691	Sends an ext reply to the client.
		2692
		2693	=cut
		2694
		2695	sub cf::client::ext_reply($$@) {
		2696	my ($self, $id, @msg) = @_;
		2697
		2698	if ($self->extcmd == 2) {
		2699	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2700	} elsif ($self->extcmd == 1) {
		2701	#TODO: version 1, remove
		2702	unshift @msg, msgtype => "reply", msgid => $id;
		2703	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2704	}
		2705	}
1696		2706
1697	=item $success = $client->query ($flags, "text", \&cb)	2707	=item $success = $client->query ($flags, "text", \&cb)
1698		2708
1699	Queues a query to the client, calling the given callback with	2709	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2710	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2711	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2712
1703	Queries can fail, so check the return code. Or don't, as queries will become	2713	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2714	become reliable at some point in the future.
1705		2715
1706	=cut	2716	=cut
1707		2717
1708	sub cf::client::query {	2718	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2719	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2727	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2728	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2729
1720	$self->send_packet ($self->{query_queue}[0][0])	2730	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2731	if @{ $self->{query_queue} } == 1;
		2732
		2733	1
1722	}	2734	}
1723		2735
1724	cf::client->attach (	2736	cf::client->attach (
		2737	on_connect => sub {
		2738	my ($ns) = @_;
		2739
		2740	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2741	},
1725	on_reply => sub {	2742	on_reply => sub {
1726	my ($ns, $msg) = @_;	2743	my ($ns, $msg) = @_;
1727		2744
1728	# this weird shuffling is so that direct followup queries	2745	# this weird shuffling is so that direct followup queries
1729	# get handled first	2746	# get handled first
1730	my $queue = delete $ns->{query_queue}	2747	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2748	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2749
1733	(shift @$queue)->[1]->($msg);	2750	(shift @$queue)->[1]->($msg);
		2751	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2752
1735	push @{ $ns->{query_queue} }, @$queue;	2753	push @{ $ns->{query_queue} }, @$queue;
1736		2754
1737	if (@{ $ns->{query_queue} } == @$queue) {	2755	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2756	if (@$queue) {
…		…
1740	} else {	2758	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2759	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2760	}
1743	}	2761	}
1744	},	2762	},
		2763	on_exticmd => sub {
		2764	my ($ns, $buf) = @_;
		2765
		2766	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2767
		2768	if (ref $msg) {
		2769	my ($type, $reply, @payload) =
		2770	"ARRAY" eq ref $msg
		2771	? @$msg
		2772	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2773
		2774	my @reply;
		2775
		2776	if (my $cb = $EXTICMD{$type}) {
		2777	@reply = $cb->($ns, @payload);
		2778	}
		2779
		2780	$ns->ext_reply ($reply, @reply)
		2781	if $reply;
		2782
		2783	} else {
		2784	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2785	}
		2786
		2787	cf::override;
		2788	},
1745	);	2789	);
1746		2790
1747	=item $client->coro (\&cb)	2791	=item $client->async (\&cb)
1748		2792
1749	Create a new coroutine, running the specified callback. The coroutine will	2793	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2794	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2795	or loss of connection).
1752		2796
1753	=cut	2797	=cut
1754		2798
1755	sub cf::client::coro {	2799	sub cf::client::async {
1756	my ($self, $cb) = @_;	2800	my ($self, $cb) = @_;
1757		2801
1758	my $coro = &cf::async ($cb);	2802	my $coro = &Coro::async ($cb);
1759		2803
1760	$coro->on_destroy (sub {	2804	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2805	delete $self->{_coro}{$coro+0};
1762	});	2806	});
1763		2807
…		…
1790	our $safe = new Safe "safe";	2834	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	2835	our $safe_hole = new Safe::Hole;
1792		2836
1793	$SIG{FPE} = 'IGNORE';	2837	$SIG{FPE} = 'IGNORE';
1794		2838
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2839	$safe->permit_only (Opcode::opset qw(
		2840	:base_core :base_mem :base_orig :base_math
		2841	grepstart grepwhile mapstart mapwhile
		2842	sort time
		2843	));
1796		2844
1797	# here we export the classes and methods available to script code	2845	# here we export the classes and methods available to script code
1798		2846
1799	=pod	2847	=pod
1800		2848
1801	The following fucntions and emthods are available within a safe environment:	2849	The following functions and methods are available within a safe environment:
1802		2850
1803	cf::object contr pay_amount pay_player map	2851	cf::object
		2852	contr pay_amount pay_player map x y force_find force_add
		2853	insert remove name archname title slaying race decrease_ob_nr
		2854
1804	cf::object::player player	2855	cf::object::player
1805	cf::player peaceful	2856	player
1806	cf::map trigger	2857
		2858	cf::player
		2859	peaceful
		2860
		2861	cf::map
		2862	trigger
1807		2863
1808	=cut	2864	=cut
1809		2865
1810	for (	2866	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	2867	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2868	insert remove inv name archname title slaying race
		2869	decrease_ob_nr)],
1812	["cf::object::player" => qw(player)],	2870	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	2871	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	2872	["cf::map" => qw(trigger)],
1815	) {	2873	) {
1816	no strict 'refs';	2874	no strict 'refs';
…		…
1887	=back	2945	=back
1888		2946
1889	=cut	2947	=cut
1890		2948
1891	#############################################################################	2949	#############################################################################
		2950	# the server's init and main functions
1892		2951
1893	=head2 EXTENSION DATABASE SUPPORT	2952	sub load_facedata($) {
		2953	my ($path) = @_;
1894		2954
1895	Crossfire maintains a very simple database for extension use. It can	2955	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	2956	# for this (global event?)
1897	excludes objects.	2957	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		2958
1899	The parameter C<$family> should best start with the name of the extension	2959	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		2960
1902	=over 4	2961	warn "loading facedata from $path\n";
1903		2962
1904	=item $hashref = cf::db_get $family	2963	my $facedata;
		2964	0 < aio_load $path, $facedata
		2965	or die "$path: $!";
1905		2966
1906	Return a hashref for use by the extension C<$family>, which can be	2967	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		2968
1910	=item $value = cf::db_get $family => $key	2969	$facedata->{version} == 2
		2970	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		2971
1912	Returns a single value from the database	2972	# patch in the exptable
1913		2973	$facedata->{resource}{"res/exp_table"} = {
1914	=item cf::db_put $family => $hashref	2974	type => FT_RSRC,
1915		2975	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2976	};
		2977	cf::cede_to_tick;
1965		2978
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	2979	{
		2980	my $faces = $facedata->{faceinfo};
1970		2981
1971	sub db_get($;$) {	2982	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	2983	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}	2984	cf::face::set_visibility $idx, $info->{visibility};
1974	: ($DB->{$_[0]} ||= { })	2985	cf::face::set_magicmap $idx, $info->{magicmap};
1975	}	2986	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2987	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976		2988
1977	sub db_put($$;$) {	2989	cf::cede_to_tick;
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2990	}
1991	);
1992	}
1993		2991
1994	#############################################################################	2992	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	2993	next unless $info->{smooth};
		2994	my $idx = cf::face::find $face
		2995	or next;
		2996	if (my $smooth = cf::face::find $info->{smooth}) {
		2997	cf::face::set_smooth $idx, $smooth;
		2998	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2999	} else {
		3000	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3001	}
1996		3002
1997	sub cfg_load {	3003	cf::cede_to_tick;
		3004	}
		3005	}
		3006
		3007	{
		3008	my $anims = $facedata->{animinfo};
		3009
		3010	while (my ($anim, $info) = each %$anims) {
		3011	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3012	cf::cede_to_tick;
		3013	}
		3014
		3015	cf::anim::invalidate_all; # d'oh
		3016	}
		3017
		3018	{
		3019	# TODO: for gcfclient pleasure, we should give resources
		3020	# that gcfclient doesn't grok a >10000 face index.
		3021	my $res = $facedata->{resource};
		3022
		3023	my $soundconf = delete $res->{"res/sound.conf"};
		3024
		3025	while (my ($name, $info) = each %$res) {
		3026	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3027	my $data;
		3028
		3029	if ($info->{type} & 1) {
		3030	# prepend meta info
		3031
		3032	my $meta = $enc->encode ({
		3033	name => $name,
		3034	%{ $info->{meta} || {} },
		3035	});
		3036
		3037	$data = pack "(w/a*)*", $meta, $info->{data};
		3038	} else {
		3039	$data = $info->{data};
		3040	}
		3041
		3042	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3043	cf::face::set_type $idx, $info->{type};
		3044
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	if ($soundconf) {
		3049	$soundconf = $enc->decode (delete $soundconf->{data});
		3050
		3051	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3052	my $sound = $soundconf->{compat}[$_]
		3053	or next;
		3054
		3055	my $face = cf::face::find "sound/$sound->[1]";
		3056	cf::sound::set $sound->[0] => $face;
		3057	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3058	}
		3059
		3060	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3061	my $face = cf::face::find "sound/$v";
		3062	cf::sound::set $k => $face;
		3063	}
		3064	}
		3065	}
		3066
		3067	1
		3068	}
		3069
		3070	register_exticmd fx_want => sub {
		3071	my ($ns, $want) = @_;
		3072
		3073	while (my ($k, $v) = each %$want) {
		3074	$ns->fx_want ($k, $v);
		3075	}
		3076	};
		3077
		3078	sub reload_regions {
		3079	# HACK to clear player env face cache, we need some signal framework
		3080	# for this (global event?)
		3081	%ext::player_env::MUSIC_FACE_CACHE = ();
		3082
		3083	load_resource_file "$MAPDIR/regions"
		3084	or die "unable to load regions file\n";
		3085
		3086	for (cf::region::list) {
		3087	$_->{match} = qr/$_->{match}/
		3088	if exists $_->{match};
		3089	}
		3090	}
		3091
		3092	sub reload_facedata {
		3093	load_facedata "$DATADIR/facedata"
		3094	or die "unable to load facedata\n";
		3095	}
		3096
		3097	sub reload_archetypes {
		3098	load_resource_file "$DATADIR/archetypes"
		3099	or die "unable to load archetypes\n";
		3100	#d# NEED to laod twice to resolve forward references
		3101	# this really needs to be done in an extra post-pass
		3102	# (which needs to be synchronous, so solve it differently)
		3103	load_resource_file "$DATADIR/archetypes"
		3104	or die "unable to load archetypes\n";
		3105	}
		3106
		3107	sub reload_treasures {
		3108	load_resource_file "$DATADIR/treasures"
		3109	or die "unable to load treasurelists\n";
		3110	}
		3111
		3112	sub reload_resources {
		3113	warn "reloading resource files...\n";
		3114
		3115	reload_regions;
		3116	reload_facedata;
		3117	#reload_archetypes;#d#
		3118	reload_archetypes;
		3119	reload_treasures;
		3120
		3121	warn "finished reloading resource files\n";
		3122	}
		3123
		3124	sub init {
		3125	reload_resources;
		3126	}
		3127
		3128	sub reload_config {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3129	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3130	or return;
2000		3131
2001	local $/;	3132	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3133	*CFG = YAML::Syck::Load <$fh>;
2003		3134
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3135	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		3136
		3137	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3138	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3139
2006	if (exists $CFG{mlockall}) {	3140	if (exists $CFG{mlockall}) {
2007	eval {	3141	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3142	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3143	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3144	};
2011	warn $@ if $@;	3145	warn $@ if $@;
2012	}	3146	}
2013	}	3147	}
2014		3148
2015	sub main {	3149	sub main {
2016	# we must not ever block the main coroutine	3150	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3151	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3152	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3153	(async {
2020	Event::one_event;	3154	Event::one_event;
2021	})->();	3155	})->prio (Coro::PRIO_MAX);
2022	};	3156	};
2023		3157
2024	cfg_load;	3158	reload_config;
2025	db_load;	3159	db_init;
2026	load_extensions;	3160	load_extensions;
		3161
		3162	$TICK_WATCHER->start;
2027	Event::loop;	3163	Event::loop;
2028	}	3164	}
2029		3165
2030	#############################################################################	3166	#############################################################################
2031	# initialisation	3167	# initialisation and cleanup
2032		3168
		3169	# install some emergency cleanup handlers
		3170	BEGIN {
		3171	for my $signal (qw(INT HUP TERM)) {
		3172	Event->signal (
		3173	reentrant => 0,
		3174	data => WF_AUTOCANCEL,
		3175	signal => $signal,
		3176	prio => 0,
		3177	cb => sub {
		3178	cf::cleanup "SIG$signal";
		3179	},
		3180	);
		3181	}
		3182	}
		3183
		3184	sub write_runtime {
		3185	my $runtime = "$LOCALDIR/runtime";
		3186
		3187	# first touch the runtime file to show we are still running:
		3188	# the fsync below can take a very very long time.
		3189
		3190	IO::AIO::aio_utime $runtime, undef, undef;
		3191
		3192	my $guard = cf::lock_acquire "write_runtime";
		3193
		3194	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3195	or return;
		3196
		3197	my $value = $cf::RUNTIME + 90 + 10;
		3198	# 10 is the runtime save interval, for a monotonic clock
		3199	# 60 allows for the watchdog to kill the server.
		3200
		3201	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3202	and return;
		3203
		3204	# always fsync - this file is important
		3205	aio_fsync $fh
		3206	and return;
		3207
		3208	# touch it again to show we are up-to-date
		3209	aio_utime $fh, undef, undef;
		3210
		3211	close $fh
		3212	or return;
		3213
		3214	aio_rename "$runtime~", $runtime
		3215	and return;
		3216
		3217	warn "runtime file written.\n";
		3218
		3219	1
		3220	}
		3221
		3222	sub emergency_save() {
		3223	my $freeze_guard = cf::freeze_mainloop;
		3224
		3225	warn "enter emergency perl save\n";
		3226
		3227	cf::sync_job {
		3228	# use a peculiar iteration method to avoid tripping on perl
		3229	# refcount bugs in for. also avoids problems with players
		3230	# and maps saved/destroyed asynchronously.
		3231	warn "begin emergency player save\n";
		3232	for my $login (keys %cf::PLAYER) {
		3233	my $pl = $cf::PLAYER{$login} or next;
		3234	$pl->valid or next;
		3235	$pl->save;
		3236	}
		3237	warn "end emergency player save\n";
		3238
		3239	warn "begin emergency map save\n";
		3240	for my $path (keys %cf::MAP) {
		3241	my $map = $cf::MAP{$path} or next;
		3242	$map->valid or next;
		3243	$map->save;
		3244	}
		3245	warn "end emergency map save\n";
		3246
		3247	warn "begin emergency database checkpoint\n";
		3248	BDB::db_env_txn_checkpoint $DB_ENV;
		3249	warn "end emergency database checkpoint\n";
		3250	};
		3251
		3252	warn "leave emergency perl save\n";
		3253	}
		3254
		3255	sub post_cleanup {
		3256	my ($make_core) = @_;
		3257
		3258	warn Carp::longmess "post_cleanup backtrace"
		3259	if $make_core;
		3260	}
		3261
2033	sub reload() {	3262	sub do_reload_perl() {
2034	# can/must only be called in main	3263	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3264	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3265	warn "can only reload from main coroutine";
2037	return;	3266	return;
2038	}	3267	}
2039		3268
2040	warn "reloading...";	3269	warn "reloading...";
2041		3270
2042	my $guard = freeze_mainloop;	3271	warn "entering sync_job";
		3272
		3273	cf::sync_job {
		3274	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	3275	cf::emergency_save;
		3276	cf::write_runtime; # external watchdog should not bark
2044		3277
2045	eval {	3278	warn "syncing database to disk";
		3279	BDB::db_env_txn_checkpoint $DB_ENV;
		3280
2046	# if anything goes wrong in here, we should simply crash as we already saved	3281	# if anything goes wrong in here, we should simply crash as we already saved
2047		3282
2048	# cancel all watchers	3283	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	3284	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3285	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	3286	}
2052		3287
		3288	warn "flushing outstanding aio requests";
		3289	for (;;) {
		3290	BDB::flush;
		3291	IO::AIO::flush;
		3292	Coro::cede;
		3293	last unless IO::AIO::nreqs || BDB::nreqs;
		3294	warn "iterate...";
		3295	}
		3296
		3297	++$RELOAD;
		3298
2053	# cancel all extension coros	3299	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	3300	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3301	%EXT_CORO = ();
2056		3302
2057	# unload all extensions	3303	warn "removing commands";
2058	for (@exts) {	3304	%COMMAND = ();
		3305
		3306	warn "removing ext/exti commands";
		3307	%EXTCMD = ();
		3308	%EXTICMD = ();
		3309
		3310	warn "unloading/nuking all extensions";
		3311	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	3312	warn "... unloading $pkg";
2060	unload_extension $_;	3313
		3314	if (my $cb = $pkg->can ("unload")) {
		3315	eval {
		3316	$cb->($pkg);
		3317	1
		3318	} or warn "$pkg unloaded, but with errors: $@";
2061	}	3319	}
2062		3320
		3321	warn "... nuking $pkg";
		3322	Symbol::delete_package $pkg;
		3323	}
		3324
2063	# unload all modules loaded from $LIBDIR	3325	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	3326	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3327	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		3328
2067	warn "removing <$k>";	3329	warn "... unloading $k";
2068	delete $INC{$k};	3330	delete $INC{$k};
2069		3331
2070	$k =~ s/\.pm$//;	3332	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	3333	$k =~ s/\//::/g;
2072		3334
…		…
2075	}	3337	}
2076		3338
2077	Symbol::delete_package $k;	3339	Symbol::delete_package $k;
2078	}	3340	}
2079		3341
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3342	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3343	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3344	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3345
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3346	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3347	delete $INC{"cf.pm"};
		3348	delete $INC{"cf/pod.pm"};
2093		3349
2094	# don't, removes xs symbols, too,	3350	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3351	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3352	#Symbol::delete_package __PACKAGE__;
2097		3353
2098	# reload cf.pm	3354	warn "unload completed, starting to reload now";
		3355
2099	warn "reloading cf.pm";	3356	warn "reloading cf.pm";
2100	require cf;	3357	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3358	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3359
2103	# load config and database again	3360	warn "loading config and database again";
2104	cf::cfg_load;	3361	cf::reload_config;
2105	cf::db_load;
2106		3362
2107	# load extensions
2108	warn "load extensions";	3363	warn "loading extensions";
2109	cf::load_extensions;	3364	cf::load_extensions;
2110		3365
2111	# reattach attachments to objects	3366	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3367	_global_reattach; # objects, sockets
2113	_global_reattach;	3368	warn "reattaching attachments to maps";
2114	};	3369	reattach $_ for values %MAP;
		3370	warn "reattaching attachments to players";
		3371	reattach $_ for values %PLAYER;
2115		3372
2116	if ($@) {	3373	warn "leaving sync_job";
		3374
		3375	1
		3376	} or do {
2117	warn $@;	3377	warn $@;
2118	warn "error while reloading, exiting.";	3378	warn "error while reloading, exiting.";
2119	exit 1;	3379	exit 1;
2120	}	3380	};
2121		3381
2122	warn "reloaded successfully";	3382	warn "reloaded";
2123	};	3383	};
2124		3384
2125	#############################################################################	3385	our $RELOAD_WATCHER; # used only during reload
2126		3386
2127	unless ($LINK_MAP) {	3387	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3388	# doing reload synchronously and two reloads happen back-to-back,
		3389	# coro crashes during coro_state_free->destroy here.
2129		3390
2130	$LINK_MAP->width (41);	3391	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3392	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	3393	after => 0,
		3394	data => WF_AUTOCANCEL,
2140	cb => sub {	3395	cb => sub {
2141	$_[0]->w->cancel;	3396	do_reload_perl;
2142		3397	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	3398	},
2161		3399	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3400	}
2167
2168	register "<global>", __PACKAGE__;
2169		3401
2170	register_command "reload" => sub {	3402	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3403	my ($who, $arg) = @_;
2172		3404
2173	if ($who->flag (FLAG_WIZ)) {	3405	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3406	$who->message ("reloading server.");
		3407	async { reload_perl };
2177	}	3408	}
2178	};	3409	};
2179		3410
2180	unshift @INC, $LIBDIR;	3411	unshift @INC, $LIBDIR;
2181		3412
		3413	my $bug_warning = 0;
		3414
		3415	our @WAIT_FOR_TICK;
		3416	our @WAIT_FOR_TICK_BEGIN;
		3417
		3418	sub wait_for_tick {
		3419	return unless $TICK_WATCHER->is_active;
		3420	return if $Coro::current == $Coro::main;
		3421
		3422	my $signal = new Coro::Signal;
		3423	push @WAIT_FOR_TICK, $signal;
		3424	$signal->wait;
		3425	}
		3426
		3427	sub wait_for_tick_begin {
		3428	return unless $TICK_WATCHER->is_active;
		3429	return if $Coro::current == $Coro::main;
		3430
		3431	my $signal = new Coro::Signal;
		3432	push @WAIT_FOR_TICK_BEGIN, $signal;
		3433	$signal->wait;
		3434	}
		3435
		3436	my $min = 1e6;#d#
		3437	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	3438	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3439	reentrant => 0,
		3440	parked => 1,
2184	prio => 0,	3441	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3442	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3443	data => WF_AUTOCANCEL,
2187	cb => sub {	3444	cb => sub {
		3445	if ($Coro::current != $Coro::main) {
		3446	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3447	unless ++$bug_warning > 10;
		3448	return;
		3449	}
		3450
		3451	$NOW = $tick_start = Event::time;
		3452
2188	cf::server_tick; # one server iteration	3453	cf::server_tick; # one server iteration
		3454
		3455	0 && sync_job {#d#
		3456	for(1..10) {
		3457	my $t = Event::time;
		3458	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3459	or die;
		3460
		3461	$map->width (50);
		3462	$map->height (50);
		3463	$map->alloc;
		3464	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3465	my $t = Event::time - $t;
		3466
		3467	#next unless $t < 0.0013;#d#
		3468	if ($t < $min) {
		3469	$min = $t;
		3470	}
		3471	$avg = $avg * 0.99 + $t * 0.01;
		3472	}
		3473	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3474	exit 0;
		3475	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3476	};
		3477
2189	$RUNTIME += $TICK;	3478	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3479	$NEXT_TICK += $TICK;
2191		3480
		3481	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3482	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3483	Coro::async_pool {
		3484	write_runtime
		3485	or warn "ERROR: unable to write runtime file: $!";
		3486	};
		3487	}
		3488
		3489	# my $AFTER = Event::time;
		3490	# warn $AFTER - $NOW;#d#
		3491
		3492	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3493	$sig->send;
		3494	}
		3495	while (my $sig = shift @WAIT_FOR_TICK) {
		3496	$sig->send;
		3497	}
		3498
		3499	$NOW = Event::time;
		3500
2192	# if we are delayed by four ticks or more, skip them all	3501	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3502	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3503
2195	$TICK_WATCHER->at ($NEXT_TICK);	3504	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3505	$TICK_WATCHER->start;
		3506
		3507	$LOAD = ($NOW - $tick_start) / $TICK;
		3508	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3509
		3510	_post_tick;
		3511
		3512
2197	},	3513	},
2198	);	3514	);
2199		3515
		3516	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	3517	BDB::max_poll_time $TICK * 0.1;
2201		3518	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3519	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3520	fd => BDB::poll_fileno,
2204	poll => 'r',	3521	poll => 'r',
2205	prio => 5,	3522	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3523	data => WF_AUTOCANCEL,
2212	after => 0,	3524	cb => \&BDB::poll_cb,
2213	interval => 10,	3525	);
2214	cb => sub {	3526	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3527
2216	write_runtime	3528	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3529	my $status;
		3530	my $current = $Coro::current;
		3531	(
		3532	sub {
		3533	$status = $!;
		3534	$current->ready; undef $current;
		3535	},
		3536	sub {
		3537	Coro::schedule while defined $current;
		3538	$! = $status;
		3539	},
		3540	)
		3541	};
		3542
		3543	unless ($DB_ENV) {
		3544	$DB_ENV = BDB::db_env_create;
		3545
		3546	cf::sync_job {
		3547	eval {
		3548	BDB::db_env_open
		3549	$DB_ENV,
		3550	$BDBDIR,
		3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3553	0666;
		3554
		3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3556
		3557	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3558	$DB_ENV->set_lk_detect;
		3559	};
		3560
		3561	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3562	};
2219	},	3563	}
2220	);	3564	}
		3565
		3566	{
		3567	IO::AIO::min_parallel 8;
		3568
		3569	undef $Coro::AIO::WATCHER;
		3570	IO::AIO::max_poll_time $TICK * 0.1;
		3571	$AIO_POLL_WATCHER = Event->io (
		3572	reentrant => 0,
		3573	data => WF_AUTOCANCEL,
		3574	fd => IO::AIO::poll_fileno,
		3575	poll => 'r',
		3576	prio => 6,
		3577	cb => \&IO::AIO::poll_cb,
		3578	);
		3579	}
		3580
		3581	my $_log_backtrace;
		3582
		3583	sub _log_backtrace {
		3584	my ($msg, @addr) = @_;
		3585
		3586	$msg =~ s/\n//;
		3587
		3588	# limit the # of concurrent backtraces
		3589	if ($_log_backtrace < 2) {
		3590	++$_log_backtrace;
		3591	async {
		3592	my @bt = fork_call {
		3593	@addr = map { sprintf "%x", $_ } @addr;
		3594	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3595	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3596	or die "addr2line: $!";
		3597
		3598	my @funcs;
		3599	my @res = <$fh>;
		3600	chomp for @res;
		3601	while (@res) {
		3602	my ($func, $line) = splice @res, 0, 2, ();
		3603	push @funcs, "[$func] $line";
		3604	}
		3605
		3606	@funcs
		3607	};
		3608
		3609	LOG llevInfo, "[ABT] $msg\n";
		3610	LOG llevInfo, "[ABT] $_\n" for @bt;
		3611	--$_log_backtrace;
		3612	};
		3613	} else {
		3614	LOG llevInfo, "[ABT] $msg\n";
		3615	LOG llevInfo, "[ABT] [suppressed]\n";
		3616	}
		3617	}
		3618
		3619	# load additional modules
		3620	use cf::pod;
2221		3621
2222	END { cf::emergency_save }	3622	END { cf::emergency_save }
2223		3623
2224	1	3624	1
2225		3625

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