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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.378 by root, Thu Oct 4 11:36:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	136	every server tick.
91		137
92	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		206
133	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
226	sub freeze_mainloop {	331	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
228		333
229	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
230	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
231	$guard	338	$guard
232	}	339	}
233		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
234	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
235		410
236	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
239		415
240	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
243	fast or be very important.	419	fast or be very important.
…		…
246		422
247	sub sync_job(&) {	423	sub sync_job(&) {
248	my ($job) = @_;	424	my ($job) = @_;
249		425
250	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
251	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
253		431
254	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	433	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	434	my $freeze_guard = freeze_mainloop;
257		435
258	my $busy = 1;	436	my $busy = 1;
259	my @res;	437	my @res;
260		438
261	(Coro::async_pool {	439	(async {
		440	$Coro::current->desc ("sync job coro");
262	@res = eval { $job->() };	441	@res = eval { $job->() };
263	warn $@ if $@;	442	warn $@ if $@;
264	undef $busy;	443	undef $busy;
265	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
266		445
267	while ($busy) {	446	while ($busy) {
268	Coro::cede_notself;	447	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
271		456
272	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
273	} else {	458	} else {
274	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
275		460
276	$job->()	461	$job->()
277	}	462	}
278	}	463	}
279		464
280	=item $coro = cf::coro { BLOCK }	465	=item $coro = cf::async_ext { BLOCK }
281		466
282	Creates (and readies) and returns a new coro. This coro is automcatially	467	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	468	extension calling this is being unloaded.
284		469
285	=cut	470	=cut
286		471
287	sub coro(&) {	472	sub async_ext(&) {
288	my $cb = shift;	473	my $cb = shift;
289		474
290	my $coro = &Coro::async_pool ($cb);	475	my $coro = &Coro::async ($cb);
291		476
292	$coro->on_destroy (sub {	477	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	478	delete $EXT_CORO{$coro+0};
294	});	479	});
295	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
296		481
297	$coro	482	$coro
298	}	483	}
299		484
300	sub write_runtime {	485	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		486
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	487	Executes the given code block with the given arguments in a seperate
304	or return;	488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
305		491
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	492	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		493
310	aio_fsync $fh	494	sub fork_call(&@) {
311	and return;	495	my ($cb, @args) = @_;
312		496
313	close $fh	497	# we seemingly have to make a local copy of the whole thing,
314	or return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
315		500
316	aio_rename "$runtime~", $runtime	501	my @res = Coro::Util::fork_eval {
317	and return;	502	reset_signals;
		503	&$cb
		504	}, @args;
318		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
319	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
320	}	645	}
321		646
322	=back	647	=back
323		648
324	=cut	649	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		650
446	#############################################################################	651	#############################################################################
447		652
448	=head2 ATTACHABLE OBJECTS	653	=head2 ATTACHABLE OBJECTS
449		654
…		…
451	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
452	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
453		658
454	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
455	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
456	crossfire+).	661	Crossfire TRT).
457		662
458	=over 4	663	=over 4
459		664
460	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
461		666
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	781	our @CB_MAP = ();
577		782
578	my %attachment;	783	my %attachment;
579		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
		790
580	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
582		793
583	use sort 'stable';	794	use sort 'stable';
584		795
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
619		830
620	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		835
625	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	837	my $pkg = shift @arg;
627		838
628	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
658	}	869	}
659		870
660	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
661	} else {	872	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	874	}
664		875
665	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
666	}	877	}
667		878
…		…
669	if (ref $_[0]) {	880	if (ref $_[0]) {
670	_object_attach @_;	881	_object_attach @_;
671	} else {	882	} else {
672	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
673	}	884	}
		885	_recalc_want;
674	};	886	};
675		887
676	# all those should be optimised	888	# all those should be optimised
677	sub cf::attachable::detach {	889	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
682	reattach ($obj);	894	reattach ($obj);
683	} else {	895	} else {
684	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
685	}	897	}
		898	_recalc_want;
686	};	899	};
687		900
688	sub cf::attachable::attached {	901	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
690		903
…		…
705	";	918	";
706	die if $@;	919	die if $@;
707	}	920	}
708		921
709	our $override;	922	our $override;
710	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
711		924
712	sub override {	925	sub override {
713	$override = 1;	926	$override = 1;
714	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
715	}	928	}
716		929
717	sub do_invoke {	930	sub do_invoke {
718	my $event = shift;	931	my $event = shift;
719	my $callbacks = shift;	932	my $callbacks = shift;
720		933
721	@invoke_results = ();	934	@INVOKE_RESULTS = ();
722		935
723	local $override;	936	local $override;
724		937
725	for (@$callbacks) {	938	for (@$callbacks) {
726	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
743		956
744	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
745		958
746	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
747	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
748	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		962
750	=back	963	=back
751		964
752	=cut	965	=cut
753		966
754	#############################################################################	967	#############################################################################
755	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
756		980
757	sub reattach {	981	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		986
761	my $registry = $obj->registry;	987	my $registry = $obj->registry;
762		988
763	@$registry = ();	989	@$registry = ();
764		990
…		…
805	sub object_freezer_save {	1031	sub object_freezer_save {
806	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
807		1033
808	sync_job {	1034	sync_job {
809	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
810	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
811	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
812		1039
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	1043	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	1044	close $fh;
818		1045
819	if (@$objs) {	1046	if (@$objs) {
820	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
821	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1050	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	1051	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	1052	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1053	aio_rename "$filename.pst~", "$filename.pst";
827	}	1054	}
828	} else {	1055	} else {
829	aio_unlink "$filename.pst";	1056	aio_unlink "$filename.pst";
…		…
835	}	1062	}
836	} else {	1063	} else {
837	aio_unlink $filename;	1064	aio_unlink $filename;
838	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
839	}	1066	}
840	}	1067	};
841	}	1068	}
842		1069
843	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
844	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
845		1072
…		…
857	or return;	1084	or return;
858		1085
859	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
860	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
861	or return;	1088	or return;
		1089
862	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
863	}	1091	}
864		1092
		1093	utf8::decode (my $decname = $filename);
865	warn sprintf "loading %s (%d)\n",	1094	warn sprintf "loading %s (%d,%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1095	$decname, length $data, scalar @{$av || []};
		1096
867	return ($data, $av);	1097	($data, $av)
868	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
869		1105
870	#############################################################################	1106	#############################################################################
871	# command handling &c	1107	# command handling &c
872		1108
873	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1123	}
888		1124
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1126
891	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
892		1132
893	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
894	called.	1134	called.
895		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
896	=cut	1147	=cut
897		1148
898	sub register_extcmd {	1149	sub register_extcmd {
899	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
900		1151
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
905	}	1159	}
906		1160
907	cf::player->attach (	1161	cf::player->attach (
908	on_command => sub {	1162	on_command => sub {
909	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
918	cf::override;	1172	cf::override;
919	},	1173	},
920	on_extcmd => sub {	1174	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
922		1176
923	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1178
925	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
928	$pl->ext_reply ($msg->{msgid}, %reply);
929	}
930	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
931	} else {	1194	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1196	}
934		1197
935	cf::override;	1198	cf::override;
936	},	1199	},
937	);	1200	);
938		1201
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
		1206	for my $path (<$LIBDIR/*.ext>) {
		1207	next unless -r $path;
		1208
		1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
		1266	}
		1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
		1272	};
		1273	}
		1274
		1275	#############################################################################
		1276
		1277	=back
		1278
		1279	=head2 CORE EXTENSIONS
		1280
		1281	Functions and methods that extend core crossfire objects.
		1282
		1283	=cut
		1284
		1285	package cf::player;
		1286
		1287	use Coro::AIO;
		1288
		1289	=head3 cf::player
		1290
		1291	=over 4
		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
		1307	=item cf::player::find $login
		1308
		1309	Returns the given player object, loading it if necessary (might block).
		1310
		1311	=cut
		1312
		1313	sub playerdir($) {
		1314	"$PLAYERDIR/"
		1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1316	}
		1317
		1318	sub path($) {
		1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1320
		1321	(playerdir $login) . "/playerdata"
		1322	}
		1323
		1324	sub find_active($) {
		1325	$cf::PLAYER{$_[0]}
		1326	and $cf::PLAYER{$_[0]}->active
		1327	and $cf::PLAYER{$_[0]}
		1328	}
		1329
		1330	sub exists($) {
		1331	my ($login) = @_;
		1332
		1333	$cf::PLAYER{$login}
		1334	or cf::sync_job { !aio_stat path $login }
		1335	}
		1336
		1337	sub find($) {
		1338	return $cf::PLAYER{$_[0]} || do {
		1339	my $login = $_[0];
		1340
		1341	my $guard = cf::lock_acquire "user_find:$login";
		1342
		1343	$cf::PLAYER{$_[0]} || do {
		1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
		1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
		1358	$cf::PLAYER{$login} = $pl
		1359	}
		1360	}
		1361	}
		1362
		1363	sub save($) {
		1364	my ($pl) = @_;
		1365
		1366	return if $pl->{deny_save};
		1367
		1368	my $path = path $pl;
		1369	my $guard = cf::lock_acquire "user_save:$path";
		1370
		1371	return if $pl->{deny_save};
		1372
		1373	aio_mkdir playerdir $pl, 0770;
		1374	$pl->{last_save} = $cf::RUNTIME;
		1375
		1376	$pl->save_pl ($path);
		1377	cf::cede_to_tick;
		1378	}
		1379
		1380	sub new($) {
		1381	my ($login) = @_;
		1382
		1383	my $self = create;
		1384
		1385	$self->ob->name ($login);
		1386	$self->{deny_save} = 1;
		1387
		1388	$cf::PLAYER{$login} = $self;
		1389
		1390	$self
		1391	}
		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
		1403	=item $pl->quit_character
		1404
		1405	Nukes the player without looking back. If logged in, the connection will
		1406	be destroyed. May block for a long time.
		1407
		1408	=cut
		1409
		1410	sub quit_character {
		1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
		1414
		1415	$pl->{deny_save} = 1;
		1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1417
		1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1419	$pl->deactivate;
		1420	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1421	$pl->ns->destroy if $pl->ns;
		1422
		1423	my $path = playerdir $pl;
		1424	my $temp = "$path~$cf::RUNTIME~deleting~";
		1425	aio_rename $path, $temp;
		1426	delete $cf::PLAYER{$pl->ob->name};
		1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
		1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
		1449	}
		1450
		1451	=item cf::player::list_logins
		1452
		1453	Returns am arrayref of all valid playernames in the system, can take a
		1454	while and may block, so not sync_job-capable, ever.
		1455
		1456	=cut
		1457
		1458	sub list_logins {
		1459	my $dirs = aio_readdir $PLAYERDIR
		1460	or return [];
		1461
		1462	my @logins;
		1463
		1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
		1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1470	aio_read $fh, 0, 512, my $buf, 0 or next;
		1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
		1473
		1474	utf8::decode $login;
		1475	push @logins, $login;
		1476	}
		1477
		1478	\@logins
		1479	}
		1480
		1481	=item $player->maps
		1482
		1483	Returns an arrayref of map paths that are private for this
		1484	player. May block.
		1485
		1486	=cut
		1487
		1488	sub maps($) {
		1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
		1492
		1493	my $files = aio_readdir playerdir $pl
		1494	or return;
		1495
		1496	my @paths;
		1497
		1498	for (@$files) {
		1499	utf8::decode $_;
		1500	next if /\.(?:pl|pst)$/;
		1501	next unless /^$PATH_SEP/o;
		1502
		1503	push @paths, cf::map::normalise "~$pl/$_";
		1504	}
		1505
		1506	\@paths
		1507	}
		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
		1560	=item $player->ext_reply ($msgid, @msg)
		1561
		1562	Sends an ext reply to the player.
		1563
		1564	=cut
		1565
		1566	sub ext_reply($$@) {
		1567	my ($self, $id, @msg) = @_;
		1568
		1569	$self->ns->ext_reply ($id, @msg)
		1570	}
		1571
		1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
946	my ($path) = @_;	1599	my ($path) = @_;
947		1600
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1601	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1602
954	warn "loading '$path' into '$pkg'\n";	1603	for my $region (list) {
955		1604	if ($region->{match} && $path =~ $region->{match}) {
956	open my $fh, "<:utf8", $path	1605	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1606	if $region->specificity > $specificity;
958		1607	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1608	}
988		1609
989	# remove commands	1610	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1611	}
1095		1612
1096	=back	1613	=back
1097
1098		1614
1099	=head3 cf::map	1615	=head3 cf::map
1100		1616
1101	=over 4	1617	=over 4
1102		1618
…		…
1105	package cf::map;	1621	package cf::map;
1106		1622
1107	use Fcntl;	1623	use Fcntl;
1108	use Coro::AIO;	1624	use Coro::AIO;
1109		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
1110	our $MAX_RESET = 3600;	1630	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1631	our $DEFAULT_RESET = 3000;
1112		1632
1113	sub generate_random_map {	1633	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1634	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1635	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1636	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1640	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1641	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1642	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1643	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1644	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1645	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1647	(cf::region::find $rmp->{region}), $rmp->{custom}
		1648	)
		1649	}
		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
		1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
		1673	my ($self, $merge) = @_;
		1674
		1675	# we have to keep some variables in memory intact
		1676	local $self->{path};
		1677	local $self->{load_path};
		1678
		1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
		1683	my ($path, $base) = @_;
		1684
		1685	$path = "$path"; # make sure its a string
		1686
		1687	$path =~ s/\.map$//;
		1688
		1689	# map plan:
		1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
		1697
		1698	$path =~ s/$PATH_SEP/\//go;
		1699
		1700	# treat it as relative path if it starts with
		1701	# something that looks reasonable
		1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1704
		1705	$base =~ s{[^/]+/?$}{};
		1706	$path = "$base/$path";
		1707	}
		1708
		1709	for ($path) {
		1710	redo if s{//}{/};
		1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
		1714
		1715	$path
		1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
1130	}	1776	}
1131		1777
1132	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1133	# all maps in C++...	1779	# all maps in C++...
1134	sub change_all_map_light {	1780	sub change_all_map_light {
…		…
1136		1782
1137	$_->change_map_light ($change)	1783	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1784	for grep $_->outdoor, values %cf::MAP;
1139	}	1785	}
1140		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
1141	sub try_load_header($) {	1803	sub load_header_from($) {
1142	my ($path) = @_;	1804	my ($self, $path) = @_;
1143		1805
1144	utf8::encode $path;	1806	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1146	or return;	1808	or return;
1147		1809
1148	my $map = cf::map::new	1810	$self->_load_header ($f)
1149	or return;	1811	or return;
1150		1812
1151	# for better error messages only, will be overwritten	1813	local $MAP_LOADING{$self->{path}} = $self;
1152	$map->path ($path);	1814	$f->resolve_delayed_derefs;
1153		1815
1154	$map->load_header ($path)	1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
		1857	} else {
		1858	$self->load_header_orig
1155	or return;	1859	or return;
		1860	$self->prepare_orig;
		1861	}
1156		1862
1157	$map->{load_path} = $path;	1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
1158		1865
1159	$map	1866	$self->default_region (cf::region::find_by_path $self->{path})
		1867	unless $self->default_region;
		1868
		1869	1
1160	}	1870	}
1161		1871
1162	sub find;	1872	sub find;
1163	sub find {	1873	sub find {
1164	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1165		1875
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
1171	cf::lock_wait "map_find:$key";	1879	cf::lock_wait "map_find:$path";
1172		1880
1173	$cf::MAP{$key} || do {	1881	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1175		1884
1176	# do it the slow way	1885	my $map = new_from_path cf::map $path
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1886	or return;
1195		1887
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1888	$map->{last_save} = $cf::RUNTIME;
1208		1889
1209	Coro::cede;	1890	$map->load_header
		1891	or return;
1210		1892
1211	if ($map->should_reset) {	1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1212	$map->reset;	1898	$map->reset;
1213	undef $guard;
1214	$map = find $path	1899	return find $path;
1215	or return;
1216	}	1900	}
1217		1901
1218	$cf::MAP{$key} = $map	1902	$cf::MAP{$path} = $map
1219	}	1903	}
1220	}	1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
1221		1908
1222	sub load {	1909	sub load {
1223	my ($self) = @_;	1910	my ($self) = @_;
1224		1911
		1912	local $self->{deny_reset} = 1; # loading can take a long time
		1913
1225	my $path = $self->{path};	1914	my $path = $self->{path};
		1915
		1916	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1917	my $guard = cf::lock_acquire "map_data:$path";
1227		1918
		1919	return unless $self->valid;
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
1229		1921
1230	$self->in_memory (cf::MAP_LOADING);	1922	$self->in_memory (cf::MAP_LOADING);
1231		1923
1232	$self->alloc;	1924	$self->alloc;
1233	$self->load_objects ($self->{load_path}, 1)	1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1234	or return;	1932	or return;
1235		1933
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1935	if delete $self->{load_original};
1238		1936
1239	if (my $uniq = $path->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1938	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1242	$self->clear_unique_items;	1941	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1244	}	1945	}
1245	}	1946	}
1246		1947
1247	Coro::cede;	1948	$f->resolve_delayed_derefs;
1248		1949
		1950	cf::cede_to_tick;
1249	# now do the right thing for maps	1951	# now do the right thing for maps
1250	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1953	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1954	unless $self->difficulty;
		1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1262	$self->activate;	1964	$self->activate;
1263	}	1965	}
1264		1966
1265	Coro::cede;	1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
1266		1969
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1970	$self->in_memory (cf::MAP_IN_MEMORY);
		1971	}
		1972
		1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
		1986	}
		1987
		1988	# find and load all maps in the 3x3 area around a map
		1989	sub load_neighbours {
		1990	my ($map) = @_;
		1991
		1992	my @neigh; # diagonal neighbours
		1993
		1994	for (0 .. 3) {
		1995	my $neigh = $map->tile_path ($_)
		1996	or next;
		1997	$neigh = find $neigh, $map
		1998	or next;
		1999	$neigh->load;
		2000
		2001	push @neigh,
		2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2004	}
		2005
		2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
		2008	my $neigh = find $path, $origin
		2009	or next;
		2010	$neigh->load;
		2011	}
1268	}	2012	}
1269		2013
1270	sub find_sync {	2014	sub find_sync {
1271	my ($path, $origin) = @_;	2015	my ($path, $origin) = @_;
1272		2016
1273	cf::sync_job { cf::map::find $path, $origin }	2017	cf::sync_job { find $path, $origin }
1274	}	2018	}
1275		2019
1276	sub do_load_sync {	2020	sub do_load_sync {
1277	my ($map) = @_;	2021	my ($map) = @_;
1278		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
1279	cf::sync_job { $map->load };	2026	cf::sync_job { $map->load };
		2027	}
		2028
		2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
		2043	$MAP_PREFETCHER ||= cf::async {
		2044	$Coro::current->{desc} = "map prefetcher";
		2045
		2046	while (%MAP_PREFETCH) {
		2047	while (my ($k, $v) = each %MAP_PREFETCH) {
		2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
		2052	delete $MAP_PREFETCH{$k};
		2053	}
		2054	}
		2055	undef $MAP_PREFETCHER;
		2056	};
		2057	$MAP_PREFETCHER->prio (6);
		2058
		2059	()
1280	}	2060	}
1281		2061
1282	sub save {	2062	sub save {
1283	my ($self) = @_;	2063	my ($self) = @_;
1284		2064
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
1286		2066
1287	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1288		2068
1289	return unless $self->dirty;	2069	return unless $self->dirty;
1290		2070
1291	my $save = $self->{path}->save_path; utf8::encode $save;	2071	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		2073
1294	$self->{load_path} = $save;	2074	$self->{load_path} = $save;
1295		2075
1296	return if $self->{deny_save};	2076	return if $self->{deny_save};
1297		2077
1298	local $self->{last_access} = $self->last_access;#d#	2078	local $self->{last_access} = $self->last_access;#d#
1299		2079
		2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
		2082	$_->contr->save for $self->players;
		2083	};
		2084
1300	if ($uniq) {	2085	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	2088	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	2090	}
1306	}	2091	}
1307		2092
1308	sub swap_out {	2093	sub swap_out {
1309	my ($self) = @_;	2094	my ($self) = @_;
1310		2095
1311	# save first because save cedes	2096	# save first because save cedes
1312	$self->save;	2097	$self->save;
1313		2098
1314	my $lock = cf::lock_acquire "map_data:" . $self->path;	2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1315		2100
1316	return if $self->players;	2101	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	2103	return if $self->{deny_save};
1319		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1320	$self->clear;	2109	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2110	}
1323		2111
1324	sub reset_at {	2112	sub reset_at {
1325	my ($self) = @_;	2113	my ($self) = @_;
1326		2114
1327	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1330		2117
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2120
…		…
1338	my ($self) = @_;	2125	my ($self) = @_;
1339		2126
1340	$self->reset_at <= $cf::RUNTIME	2127	$self->reset_at <= $cf::RUNTIME
1341	}	2128	}
1342		2129
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2130	sub reset {
1365	my ($self) = @_;	2131	my ($self) = @_;
1366		2132
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2134
1369	return if $self->players;	2135	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2136
1372	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
1373		2148
1374	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1375		2150
		2151	$self->deactivate;
1376	$_->clear_links_to ($self) for values %cf::MAP;	2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
1377		2154
1378	$self->unlink_save;	2155	$self->unlink_save;
1379	$self->destroy;	2156	$self->destroy;
1380	}	2157	}
1381		2158
1382	my $nuke_counter = "aaaa";	2159	my $nuke_counter = "aaaa";
1383		2160
1384	sub nuke {	2161	sub nuke {
1385	my ($self) = @_;	2162	my ($self) = @_;
1386		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
		2167	delete $cf::MAP{$self->path};
		2168
		2169	$self->unlink_save;
		2170
		2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2173	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2174	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2176
		2177	$cf::MAP{$self->path} = $self;
		2178	}
		2179
1390	$self->reset; # polite request, might not happen	2180	$self->reset; # polite request, might not happen
1391	}	2181	}
1392		2182
1393	sub customise_for {	2183	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2184
1396	if ($map->per_player) {	2185	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
1398	}	2191	[
1399		2192	map {
1400	$map	2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
1401	}	2199	}
1402		2200
1403	sub emergency_save {	2201	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2202
1406	warn "enter emergency map save\n";	2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
1407		2205
1408	cf::sync_job {	2206	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2207
1413	warn "end emergency map save\n";	2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
		2217	}
		2218
		2219	=item cf::map::unique_maps
		2220
		2221	Returns an arrayref of paths of all shared maps that have
		2222	instantiated unique items. May block.
		2223
		2224	=cut
		2225
		2226	sub unique_maps() {
		2227	[
		2228	map {
		2229	utf8::decode $_;
		2230	/\.map$/
		2231	? normalise $_
		2232	: ()
		2233	} @{ aio_readdir $UNIQUEDIR or [] }
		2234	]
1414	}	2235	}
1415		2236
1416	package cf;	2237	package cf;
1417		2238
1418	=back	2239	=back
1419		2240
		2241	=head3 cf::object
		2242
		2243	=cut
		2244
		2245	package cf::object;
		2246
		2247	=over 4
		2248
		2249	=item $ob->inv_recursive
		2250
		2251	Returns the inventory of the object _and_ their inventories, recursively.
		2252
		2253	=cut
		2254
		2255	sub inv_recursive_;
		2256	sub inv_recursive_ {
		2257	map { $_, inv_recursive_ $_->inv } @_
		2258	}
		2259
		2260	sub inv_recursive {
		2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2279	my ($uuid, $name) = ($1, $2);
		2280	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2281	or return;
		2282	$pl->ob->uuid eq $uuid
		2283	or return;
		2284
		2285	$pl->ob
		2286	} else {
		2287	warn "$ref: cannot resolve object reference\n";
		2288	undef
		2289	}
		2290	}
		2291
		2292	package cf;
		2293
		2294	=back
1420		2295
1421	=head3 cf::object::player	2296	=head3 cf::object::player
1422		2297
1423	=over 4	2298	=over 4
1424		2299
…		…
1438		2313
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2314	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2315
1441	if ($self->{record_replies}) {	2316	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2317	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2318
1443	} else {	2319	} else {
		2320	my $pl = $self->contr;
		2321
		2322	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2323	my $dialog = $pl->{npc_dialog};
		2324	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2325
		2326	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2327	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2328	$self->message ($msg, $flags);
		2329	}
1446	}	2330	}
		2331	}
		2332
		2333	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2334
		2335	=cut
		2336
		2337	sub cf::object::send_msg {
		2338	my $pl = shift->contr
		2339	or return;
		2340	$pl->send_msg (@_);
1447	}	2341	}
1448		2342
1449	=item $player_object->may ("access")	2343	=item $player_object->may ("access")
1450		2344
1451	Returns wether the given player is authorized to access resource "access"	2345	Returns wether the given player is authorized to access resource "access"
…		…
1464		2358
1465	=item $player_object->enter_link	2359	=item $player_object->enter_link
1466		2360
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2361	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2362
1469	The player should be reaosnably safe there for short amounts of time. You	2363	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2364	I<MUST> call C<leave_link> as soon as possible, though.
1471		2365
		2366	Will never block.
		2367
1472	=item $player_object->leave_link ($map, $x, $y)	2368	=item $player_object->leave_link ($map, $x, $y)
1473		2369
1474	Moves the player out of the specila link map onto the given map. If the	2370	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2371	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2372	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2373	fails, to the emergency map position.
1478		2374
1479	Might block.	2375	Might block.
1480		2376
1481	=cut	2377	=cut
		2378
		2379	sub link_map {
		2380	unless ($LINK_MAP) {
		2381	$LINK_MAP = cf::map::find "{link}"
		2382	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2383	$LINK_MAP->load;
		2384	}
		2385
		2386	$LINK_MAP
		2387	}
1482		2388
1483	sub cf::object::player::enter_link {	2389	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2390	my ($self) = @_;
1485		2391
1486	$self->deactivate_recursive;	2392	$self->deactivate_recursive;
1487		2393
1488	return if $self->map == $LINK_MAP;	2394	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2395
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2396	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2397	if $self->map && $self->map->{path} ne "{link}";
1492		2398
1493	$self->enter_map ($LINK_MAP, 20, 20);	2399	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2400	}
1495		2401
1496	sub cf::object::player::leave_link {	2402	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2403	my ($self, $map, $x, $y) = @_;
		2404
		2405	return unless $self->contr->active;
1498		2406
1499	my $link_pos = delete $self->{_link_pos};	2407	my $link_pos = delete $self->{_link_pos};
1500		2408
1501	unless ($map) {	2409	unless ($map) {
1502	# restore original map position	2410	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2424	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2425	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2426	if $x <=0 && $y <= 0;
1519		2427
1520	$map->load;	2428	$map->load;
		2429	$map->load_neighbours;
1521		2430
		2431	return unless $self->contr->active;
1522	$self->activate_recursive;	2432	$self->activate_recursive;
		2433
		2434	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2435	$self->enter_map ($map, $x, $y);
1524	}	2436	}
1525		2437
1526	cf::player->attach (	2438	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1527	on_logout => sub {
1528	my ($pl) = @_;
1529		2439
1530	# abort map switching before logout	2440	Moves the player to the given map-path and coordinates by first freezing
1531	if ($pl->ob->{_link_pos}) {	2441	her, loading and preparing them map, calling the provided $check callback
1532	cf::sync_job {	2442	that has to return the map if sucecssful, and then unfreezes the player on
1533	$pl->ob->leave_link	2443	the new (success) or old (failed) map position. In either case, $done will
1534	};	2444	be called at the end of this process.
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2445
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)
1555
1556	=cut	2446	=cut
		2447
		2448	our $GOTOGEN;
1557		2449
1558	sub cf::object::player::goto {	2450	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2451	my ($self, $path, $x, $y, $check, $done) = @_;
		2452
		2453	# do generation counting so two concurrent goto's will be executed in-order
		2454	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2455
1561	$self->enter_link;	2456	$self->enter_link;
1562		2457
1563	(Coro::async_pool {	2458	(async {
1564	$path = new cf::path $path;	2459	$Coro::current->{desc} = "player::goto $path $x $y";
1565		2460
1566	my $map = cf::map::find $path->as_string;	2461	# *tag paths override both path and x|y
		2462	if ($path =~ /^\*(.*)$/) {
		2463	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2464	my $ob = $obs[rand @obs];
		2465
		2466	# see if we actually can go there
		2467	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2468	$ob = $obs[rand @obs];
		2469	} else {
		2470	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2471	}
		2472	# else put us there anyways for now #d#
		2473
		2474	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2475	} else {
		2476	($path, $x, $y) = (undef, undef, undef);
		2477	}
		2478	}
		2479
		2480	my $map = eval {
		2481	my $map = defined $path ? cf::map::find $path : undef;
		2482
		2483	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2484	$map = $map->customise_for ($self);
1568		2485	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2486	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2487	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2488	}
1573		2489
		2490	$map
		2491	};
		2492
		2493	if ($@) {
		2494	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2495	LOG llevError | logBacktrace, Carp::longmess $@;
		2496	}
		2497
		2498	if ($gen == $self->{_goto_generation}) {
		2499	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2500	$self->leave_link ($map, $x, $y);
		2501	}
		2502
		2503	$done->() if $done;
1575	})->prio (1);	2504	})->prio (1);
1576	}	2505	}
1577		2506
1578	=item $player_object->enter_exit ($exit_object)	2507	=item $player_object->enter_exit ($exit_object)
1579		2508
…		…
1581		2510
1582	sub parse_random_map_params {	2511	sub parse_random_map_params {
1583	my ($spec) = @_;	2512	my ($spec) = @_;
1584		2513
1585	my $rmp = { # defaults	2514	my $rmp = { # defaults
1586	xsize => 10,	2515	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2516	ysize => (cf::rndm 15, 40),
		2517	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2518	#layout => string,
1588	};	2519	};
1589		2520
1590	for (split /\n/, $spec) {	2521	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2522	my ($k, $v) = split /\s+/, $_, 2;
1592		2523
…		…
1596	$rmp	2527	$rmp
1597	}	2528	}
1598		2529
1599	sub prepare_random_map {	2530	sub prepare_random_map {
1600	my ($exit) = @_;	2531	my ($exit) = @_;
		2532
		2533	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2534
1602	# all this does is basically replace the /! path by	2535	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2536	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2537	# that depends on the exit object
1605		2538
1606	my $rmp = parse_random_map_params $exit->msg;	2539	my $rmp = parse_random_map_params $exit->msg;
1607		2540
1608	if ($exit->map) {	2541	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2542	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2543	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2544	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2545	$rmp->{origin_y} = $exit->y;
1613	}	2546	}
1614		2547
1615	$rmp->{random_seed} ||= $exit->random_seed;	2548	$rmp->{random_seed} ||= $exit->random_seed;
1616		2549
1617	my $data = cf::to_json $rmp;	2550	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2551	my $md5 = Digest::MD5::md5_hex $data;
		2552	my $meta = "$RANDOMDIR/$md5.meta";
1619		2553
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2554	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2555	aio_write $fh, 0, (length $data), $data, 0;
		2556	undef $fh;
		2557	aio_rename "$meta~", $meta;
1622		2558
1623	$exit->slaying ("?random/$md5");	2559	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2560	$exit->msg (undef);
1625	}	2561	}
1626	}	2562	}
…		…
1628	sub cf::object::player::enter_exit {	2564	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2565	my ($self, $exit) = @_;
1630		2566
1631	return unless $self->type == cf::PLAYER;	2567	return unless $self->type == cf::PLAYER;
1632		2568
		2569	if ($exit->slaying eq "/!") {
		2570	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2571	# the problem is that $exit might not survive long enough
		2572	# so it needs to be done right now, right here
		2573	cf::sync_job { prepare_random_map $exit };
		2574	}
		2575
		2576	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2577	my $hp = $exit->stats->hp;
		2578	my $sp = $exit->stats->sp;
		2579
1633	$self->enter_link;	2580	$self->enter_link;
1634		2581
1635	(Coro::async_pool {	2582	# if exit is damned, update players death & WoR home-position
		2583	$self->contr->savebed ($slaying, $hp, $sp)
		2584	if $exit->flag (FLAG_DAMNED);
		2585
		2586	(async {
		2587	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2588
1636	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2590	unless (eval {
1638	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2592
1644	1;	2593	1;
1645	}) {	2594	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2597	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2599
1651	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2601	$self->leave_link;
1653	}	2602	}
1654	})->prio (1);	2603	})->prio (1);
…		…
1667		2616
1668	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1670		2619
1671	utf8::encode $text;	2620	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2622	}
1674		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "infobox",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "infobox",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	"c/lookat" => {
		2647	id => "infobox",
		2648	title => "Look",
		2649	reply => undef,
		2650	tooltip => "What you saw there",
		2651	},
		2652	);
		2653
		2654	sub cf::client::send_msg {
		2655	my ($self, $channel, $msg, $color, @extra) = @_;
		2656
		2657	$msg = $self->pl->expand_cfpod ($msg);
		2658
		2659	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2660
		2661	# check predefined channels, for the benefit of C
		2662	if ($CHANNEL{$channel}) {
		2663	$channel = $CHANNEL{$channel};
		2664
		2665	$self->ext_msg (channel_info => $channel)
		2666	if $self->can_msg;
		2667
		2668	$channel = $channel->{id};
		2669
		2670	} elsif (ref $channel) {
		2671	# send meta info to client, if not yet sent
		2672	unless (exists $self->{channel}{$channel->{id}}) {
		2673	$self->{channel}{$channel->{id}} = $channel;
		2674	$self->ext_msg (channel_info => $channel)
		2675	if $self->can_msg;
		2676	}
		2677
		2678	$channel = $channel->{id};
		2679	}
		2680
		2681	return unless @extra || length $msg;
		2682
		2683	if ($self->can_msg) {
		2684	# default colour, mask it out
		2685	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2686	if $color & cf::NDI_DEF;
		2687
		2688	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2689	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2690	} else {
		2691	if ($color >= 0) {
		2692	# replace some tags by gcfclient-compatible ones
		2693	for ($msg) {
		2694	1 while
		2695	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2696	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2697	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2698	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2699	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2700	}
		2701
		2702	$color &= cf::NDI_COLOR_MASK;
		2703
		2704	utf8::encode $msg;
		2705
		2706	if (0 && $msg =~ /\[/) {
		2707	# COMMAND/INFO
		2708	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2709	} else {
		2710	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2711	$self->send_packet ("drawinfo $color $msg")
		2712	}
		2713	}
		2714	}
		2715	}
		2716
		2717	=item $client->ext_msg ($type, @msg)
		2718
		2719	Sends an ext event to the client.
		2720
		2721	=cut
		2722
		2723	sub cf::client::ext_msg($$@) {
		2724	my ($self, $type, @msg) = @_;
		2725
		2726	if ($self->extcmd == 2) {
		2727	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2728	} elsif ($self->extcmd == 1) { # TODO: remove
		2729	push @msg, msgtype => "event_$type";
		2730	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2731	}
		2732	}
		2733
		2734	=item $client->ext_reply ($msgid, @msg)
		2735
		2736	Sends an ext reply to the client.
		2737
		2738	=cut
		2739
		2740	sub cf::client::ext_reply($$@) {
		2741	my ($self, $id, @msg) = @_;
		2742
		2743	if ($self->extcmd == 2) {
		2744	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2745	} elsif ($self->extcmd == 1) {
		2746	#TODO: version 1, remove
		2747	unshift @msg, msgtype => "reply", msgid => $id;
		2748	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2749	}
		2750	}
1675		2751
1676	=item $success = $client->query ($flags, "text", \&cb)	2752	=item $success = $client->query ($flags, "text", \&cb)
1677		2753
1678	Queues a query to the client, calling the given callback with	2754	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2755	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2756	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2757
1682	Queries can fail, so check the return code. Or don't, as queries will become	2758	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2759	become reliable at some point in the future.
1684		2760
1685	=cut	2761	=cut
1686		2762
1687	sub cf::client::query {	2763	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2764	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2772	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2773	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2774
1699	$self->send_packet ($self->{query_queue}[0][0])	2775	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2776	if @{ $self->{query_queue} } == 1;
		2777
		2778	1
1701	}	2779	}
1702		2780
1703	cf::client->attach (	2781	cf::client->attach (
		2782	on_connect => sub {
		2783	my ($ns) = @_;
		2784
		2785	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2786	},
1704	on_reply => sub {	2787	on_reply => sub {
1705	my ($ns, $msg) = @_;	2788	my ($ns, $msg) = @_;
1706		2789
1707	# this weird shuffling is so that direct followup queries	2790	# this weird shuffling is so that direct followup queries
1708	# get handled first	2791	# get handled first
1709	my $queue = delete $ns->{query_queue}	2792	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2793	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2794
1712	(shift @$queue)->[1]->($msg);	2795	(shift @$queue)->[1]->($msg);
		2796	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2797
1714	push @{ $ns->{query_queue} }, @$queue;	2798	push @{ $ns->{query_queue} }, @$queue;
1715		2799
1716	if (@{ $ns->{query_queue} } == @$queue) {	2800	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2801	if (@$queue) {
…		…
1719	} else {	2803	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2804	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2805	}
1722	}	2806	}
1723	},	2807	},
		2808	on_exticmd => sub {
		2809	my ($ns, $buf) = @_;
		2810
		2811	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2812
		2813	if (ref $msg) {
		2814	my ($type, $reply, @payload) =
		2815	"ARRAY" eq ref $msg
		2816	? @$msg
		2817	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2818
		2819	my @reply;
		2820
		2821	if (my $cb = $EXTICMD{$type}) {
		2822	@reply = $cb->($ns, @payload);
		2823	}
		2824
		2825	$ns->ext_reply ($reply, @reply)
		2826	if $reply;
		2827
		2828	} else {
		2829	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2830	}
		2831
		2832	cf::override;
		2833	},
1724	);	2834	);
1725		2835
1726	=item $client->coro (\&cb)	2836	=item $client->async (\&cb)
1727		2837
1728	Create a new coroutine, running the specified callback. The coroutine will	2838	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2839	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2840	or loss of connection).
1731		2841
1732	=cut	2842	=cut
1733		2843
1734	sub cf::client::coro {	2844	sub cf::client::async {
1735	my ($self, $cb) = @_;	2845	my ($self, $cb) = @_;
1736		2846
1737	my $coro = &Coro::async_pool ($cb);	2847	my $coro = &Coro::async ($cb);
1738		2848
1739	$coro->on_destroy (sub {	2849	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2850	delete $self->{_coro}{$coro+0};
1741	});	2851	});
1742		2852
…		…
1769	our $safe = new Safe "safe";	2879	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	2880	our $safe_hole = new Safe::Hole;
1771		2881
1772	$SIG{FPE} = 'IGNORE';	2882	$SIG{FPE} = 'IGNORE';
1773		2883
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2884	$safe->permit_only (Opcode::opset qw(
		2885	:base_core :base_mem :base_orig :base_math
		2886	grepstart grepwhile mapstart mapwhile
		2887	sort time
		2888	));
1775		2889
1776	# here we export the classes and methods available to script code	2890	# here we export the classes and methods available to script code
1777		2891
1778	=pod	2892	=pod
1779		2893
1780	The following fucntions and emthods are available within a safe environment:	2894	The following functions and methods are available within a safe environment:
1781		2895
1782	cf::object contr pay_amount pay_player map	2896	cf::object
		2897	contr pay_amount pay_player map x y force_find force_add
		2898	insert remove name archname title slaying race decrease_ob_nr
		2899
1783	cf::object::player player	2900	cf::object::player
1784	cf::player peaceful	2901	player
1785	cf::map trigger	2902
		2903	cf::player
		2904	peaceful
		2905
		2906	cf::map
		2907	trigger
1786		2908
1787	=cut	2909	=cut
1788		2910
1789	for (	2911	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	2912	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2913	insert remove inv name archname title slaying race
		2914	decrease_ob_nr)],
1791	["cf::object::player" => qw(player)],	2915	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	2916	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	2917	["cf::map" => qw(trigger)],
1794	) {	2918	) {
1795	no strict 'refs';	2919	no strict 'refs';
…		…
1866	=back	2990	=back
1867		2991
1868	=cut	2992	=cut
1869		2993
1870	#############################################################################	2994	#############################################################################
		2995	# the server's init and main functions
1871		2996
1872	=head2 EXTENSION DATABASE SUPPORT	2997	sub load_facedata($) {
		2998	my ($path) = @_;
1873		2999
1874	Crossfire maintains a very simple database for extension use. It can	3000	# HACK to clear player env face cache, we need some signal framework
1875	currently store anything that can be serialised using Storable, which	3001	# for this (global event?)
1876	excludes objects.	3002	%ext::player_env::MUSIC_FACE_CACHE = ();
1877		3003
1878	The parameter C<$family> should best start with the name of the extension	3004	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1879	using it, it should be unique.
1880		3005
1881	=over 4	3006	warn "loading facedata from $path\n";
1882		3007
1883	=item $hashref = cf::db_get $family	3008	my $facedata;
		3009	0 < aio_load $path, $facedata
		3010	or die "$path: $!";
1884		3011
1885	Return a hashref for use by the extension C<$family>, which can be	3012	$facedata = Coro::Storable::thaw $facedata;
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888		3013
1889	=item $value = cf::db_get $family => $key	3014	$facedata->{version} == 2
		3015	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		3016
1891	Returns a single value from the database	3017	# patch in the exptable
1892		3018	$facedata->{resource}{"res/exp_table"} = {
1893	=item cf::db_put $family => $hashref	3019	type => FT_RSRC,
1894		3020	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}
1921
1922	my $pid;
1923
1924	sub db_save() {
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	3021	};
		3022	cf::cede_to_tick;
1944		3023
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}	3024	{
		3025	my $faces = $facedata->{faceinfo};
1949		3026
1950	sub db_get($;$) {	3027	while (my ($face, $info) = each %$faces) {
1951	@_ >= 2	3028	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1952	? $DB->{$_[0]}{$_[1]}	3029	cf::face::set_visibility $idx, $info->{visibility};
1953	: ($DB->{$_[0]} ||= { })	3030	cf::face::set_magicmap $idx, $info->{magicmap};
1954	}	3031	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3032	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1955		3033
1956	sub db_put($$;$) {	3034	cf::cede_to_tick;
1957	if (@_ >= 3) {
1958	$DB->{$_[0]}{$_[1]} = $_[2];
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	3035	}
1970	);
1971	}
1972		3036
1973	#############################################################################	3037	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	3038	next unless $info->{smooth};
		3039	my $idx = cf::face::find $face
		3040	or next;
		3041	if (my $smooth = cf::face::find $info->{smooth}) {
		3042	cf::face::set_smooth $idx, $smooth;
		3043	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3044	} else {
		3045	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3046	}
1975		3047
1976	sub cfg_load {	3048	cf::cede_to_tick;
		3049	}
		3050	}
		3051
		3052	{
		3053	my $anims = $facedata->{animinfo};
		3054
		3055	while (my ($anim, $info) = each %$anims) {
		3056	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3057	cf::cede_to_tick;
		3058	}
		3059
		3060	cf::anim::invalidate_all; # d'oh
		3061	}
		3062
		3063	{
		3064	# TODO: for gcfclient pleasure, we should give resources
		3065	# that gcfclient doesn't grok a >10000 face index.
		3066	my $res = $facedata->{resource};
		3067
		3068	my $soundconf = delete $res->{"res/sound.conf"};
		3069
		3070	while (my ($name, $info) = each %$res) {
		3071	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3072	my $data;
		3073
		3074	if ($info->{type} & 1) {
		3075	# prepend meta info
		3076
		3077	my $meta = $enc->encode ({
		3078	name => $name,
		3079	%{ $info->{meta} || {} },
		3080	});
		3081
		3082	$data = pack "(w/a*)*", $meta, $info->{data};
		3083	} else {
		3084	$data = $info->{data};
		3085	}
		3086
		3087	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3088	cf::face::set_type $idx, $info->{type};
		3089
		3090	cf::cede_to_tick;
		3091	}
		3092
		3093	if ($soundconf) {
		3094	$soundconf = $enc->decode (delete $soundconf->{data});
		3095
		3096	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3097	my $sound = $soundconf->{compat}[$_]
		3098	or next;
		3099
		3100	my $face = cf::face::find "sound/$sound->[1]";
		3101	cf::sound::set $sound->[0] => $face;
		3102	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3103	}
		3104
		3105	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3106	my $face = cf::face::find "sound/$v";
		3107	cf::sound::set $k => $face;
		3108	}
		3109	}
		3110	}
		3111
		3112	1
		3113	}
		3114
		3115	register_exticmd fx_want => sub {
		3116	my ($ns, $want) = @_;
		3117
		3118	while (my ($k, $v) = each %$want) {
		3119	$ns->fx_want ($k, $v);
		3120	}
		3121	};
		3122
		3123	sub reload_regions {
		3124	# HACK to clear player env face cache, we need some signal framework
		3125	# for this (global event?)
		3126	%ext::player_env::MUSIC_FACE_CACHE = ();
		3127
		3128	load_resource_file "$MAPDIR/regions"
		3129	or die "unable to load regions file\n";
		3130
		3131	for (cf::region::list) {
		3132	$_->{match} = qr/$_->{match}/
		3133	if exists $_->{match};
		3134	}
		3135	}
		3136
		3137	sub reload_facedata {
		3138	load_facedata "$DATADIR/facedata"
		3139	or die "unable to load facedata\n";
		3140	}
		3141
		3142	sub reload_archetypes {
		3143	load_resource_file "$DATADIR/archetypes"
		3144	or die "unable to load archetypes\n";
		3145	#d# NEED to laod twice to resolve forward references
		3146	# this really needs to be done in an extra post-pass
		3147	# (which needs to be synchronous, so solve it differently)
		3148	load_resource_file "$DATADIR/archetypes"
		3149	or die "unable to load archetypes\n";
		3150	}
		3151
		3152	sub reload_treasures {
		3153	load_resource_file "$DATADIR/treasures"
		3154	or die "unable to load treasurelists\n";
		3155	}
		3156
		3157	sub reload_resources {
		3158	warn "reloading resource files...\n";
		3159
		3160	reload_regions;
		3161	reload_facedata;
		3162	#reload_archetypes;#d#
		3163	reload_archetypes;
		3164	reload_treasures;
		3165
		3166	warn "finished reloading resource files\n";
		3167	}
		3168
		3169	sub init {
		3170	reload_resources;
		3171	}
		3172
		3173	sub reload_config {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3174	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3175	or return;
1979		3176
1980	local $/;	3177	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3178	*CFG = YAML::Syck::Load <$fh>;
1982		3179
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3180	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		3181
		3182	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3183	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3184
1985	if (exists $CFG{mlockall}) {	3185	if (exists $CFG{mlockall}) {
1986	eval {	3186	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3187	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3188	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3189	};
1990	warn $@ if $@;	3190	warn $@ if $@;
1991	}	3191	}
1992	}	3192	}
1993		3193
1994	sub main {	3194	sub main {
1995	# we must not ever block the main coroutine	3195	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3196	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3198	(async {
		3199	$Coro::current->{desc} = "IDLE BUG HANDLER";
1999	Event::one_event;	3200	Event::one_event;
2000	})->();	3201	})->prio (Coro::PRIO_MAX);
2001	};	3202	};
2002		3203
2003	cfg_load;	3204	reload_config;
2004	db_load;	3205	db_init;
2005	load_extensions;	3206	load_extensions;
		3207
		3208	$TICK_WATCHER->start;
2006	Event::loop;	3209	Event::loop;
2007	}	3210	}
2008		3211
2009	#############################################################################	3212	#############################################################################
2010	# initialisation	3213	# initialisation and cleanup
2011		3214
		3215	# install some emergency cleanup handlers
		3216	BEGIN {
		3217	for my $signal (qw(INT HUP TERM)) {
		3218	Event->signal (
		3219	reentrant => 0,
		3220	data => WF_AUTOCANCEL,
		3221	signal => $signal,
		3222	prio => 0,
		3223	cb => sub {
		3224	cf::cleanup "SIG$signal";
		3225	},
		3226	);
		3227	}
		3228	}
		3229
		3230	sub write_runtime {
		3231	my $runtime = "$LOCALDIR/runtime";
		3232
		3233	# first touch the runtime file to show we are still running:
		3234	# the fsync below can take a very very long time.
		3235
		3236	IO::AIO::aio_utime $runtime, undef, undef;
		3237
		3238	my $guard = cf::lock_acquire "write_runtime";
		3239
		3240	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3241	or return;
		3242
		3243	my $value = $cf::RUNTIME + 90 + 10;
		3244	# 10 is the runtime save interval, for a monotonic clock
		3245	# 60 allows for the watchdog to kill the server.
		3246
		3247	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3248	and return;
		3249
		3250	# always fsync - this file is important
		3251	aio_fsync $fh
		3252	and return;
		3253
		3254	# touch it again to show we are up-to-date
		3255	aio_utime $fh, undef, undef;
		3256
		3257	close $fh
		3258	or return;
		3259
		3260	aio_rename "$runtime~", $runtime
		3261	and return;
		3262
		3263	warn "runtime file written.\n";
		3264
		3265	1
		3266	}
		3267
		3268	sub emergency_save() {
		3269	my $freeze_guard = cf::freeze_mainloop;
		3270
		3271	warn "enter emergency perl save\n";
		3272
		3273	cf::sync_job {
		3274	# use a peculiar iteration method to avoid tripping on perl
		3275	# refcount bugs in for. also avoids problems with players
		3276	# and maps saved/destroyed asynchronously.
		3277	warn "begin emergency player save\n";
		3278	for my $login (keys %cf::PLAYER) {
		3279	my $pl = $cf::PLAYER{$login} or next;
		3280	$pl->valid or next;
		3281	$pl->save;
		3282	}
		3283	warn "end emergency player save\n";
		3284
		3285	warn "begin emergency map save\n";
		3286	for my $path (keys %cf::MAP) {
		3287	my $map = $cf::MAP{$path} or next;
		3288	$map->valid or next;
		3289	$map->save;
		3290	}
		3291	warn "end emergency map save\n";
		3292
		3293	warn "begin emergency database checkpoint\n";
		3294	BDB::db_env_txn_checkpoint $DB_ENV;
		3295	warn "end emergency database checkpoint\n";
		3296	};
		3297
		3298	warn "leave emergency perl save\n";
		3299	}
		3300
		3301	sub post_cleanup {
		3302	my ($make_core) = @_;
		3303
		3304	warn Carp::longmess "post_cleanup backtrace"
		3305	if $make_core;
		3306	}
		3307
2012	sub reload() {	3308	sub do_reload_perl() {
2013	# can/must only be called in main	3309	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3310	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	3311	warn "can only reload from main coroutine";
2016	return;	3312	return;
2017	}	3313	}
2018		3314
2019	warn "reloading...";	3315	warn "reloading...";
2020		3316
2021	my $guard = freeze_mainloop;	3317	warn "entering sync_job";
		3318
		3319	cf::sync_job {
		3320	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	3321	cf::emergency_save;
		3322	cf::write_runtime; # external watchdog should not bark
2023		3323
2024	eval {	3324	warn "syncing database to disk";
		3325	BDB::db_env_txn_checkpoint $DB_ENV;
		3326
2025	# if anything goes wrong in here, we should simply crash as we already saved	3327	# if anything goes wrong in here, we should simply crash as we already saved
2026		3328
2027	# cancel all watchers	3329	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	3330	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3331	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	3332	}
2031		3333
		3334	warn "flushing outstanding aio requests";
		3335	for (;;) {
		3336	BDB::flush;
		3337	IO::AIO::flush;
		3338	Coro::cede;
		3339	last unless IO::AIO::nreqs || BDB::nreqs;
		3340	warn "iterate...";
		3341	}
		3342
		3343	++$RELOAD;
		3344
2032	# cancel all extension coros	3345	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	3346	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	3347	%EXT_CORO = ();
2035		3348
2036	# unload all extensions	3349	warn "removing commands";
2037	for (@exts) {	3350	%COMMAND = ();
		3351
		3352	warn "removing ext/exti commands";
		3353	%EXTCMD = ();
		3354	%EXTICMD = ();
		3355
		3356	warn "unloading/nuking all extensions";
		3357	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	3358	warn "... unloading $pkg";
2039	unload_extension $_;	3359
		3360	if (my $cb = $pkg->can ("unload")) {
		3361	eval {
		3362	$cb->($pkg);
		3363	1
		3364	} or warn "$pkg unloaded, but with errors: $@";
2040	}	3365	}
2041		3366
		3367	warn "... nuking $pkg";
		3368	Symbol::delete_package $pkg;
		3369	}
		3370
2042	# unload all modules loaded from $LIBDIR	3371	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	3372	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3373	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		3374
2046	warn "removing <$k>";	3375	warn "... unloading $k";
2047	delete $INC{$k};	3376	delete $INC{$k};
2048		3377
2049	$k =~ s/\.pm$//;	3378	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	3379	$k =~ s/\//::/g;
2051		3380
…		…
2054	}	3383	}
2055		3384
2056	Symbol::delete_package $k;	3385	Symbol::delete_package $k;
2057	}	3386	}
2058		3387
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	3388	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3389	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3390	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3391
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	3392	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	3393	delete $INC{"cf.pm"};
		3394	delete $INC{"cf/pod.pm"};
2072		3395
2073	# don't, removes xs symbols, too,	3396	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3397	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3398	#Symbol::delete_package __PACKAGE__;
2076		3399
2077	# reload cf.pm	3400	warn "unload completed, starting to reload now";
		3401
2078	warn "reloading cf.pm";	3402	warn "reloading cf.pm";
2079	require cf;	3403	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		3405
2082	# load config and database again	3406	warn "loading config and database again";
2083	cf::cfg_load;	3407	cf::reload_config;
2084	cf::db_load;
2085		3408
2086	# load extensions
2087	warn "load extensions";	3409	warn "loading extensions";
2088	cf::load_extensions;	3410	cf::load_extensions;
2089		3411
2090	# reattach attachments to objects	3412	warn "reattaching attachments to objects/players";
2091	warn "reattach";	3413	_global_reattach; # objects, sockets
2092	_global_reattach;	3414	warn "reattaching attachments to maps";
2093	};	3415	reattach $_ for values %MAP;
		3416	warn "reattaching attachments to players";
		3417	reattach $_ for values %PLAYER;
2094		3418
2095	if ($@) {	3419	warn "leaving sync_job";
		3420
		3421	1
		3422	} or do {
2096	warn $@;	3423	warn $@;
2097	warn "error while reloading, exiting.";	3424	warn "error while reloading, exiting.";
2098	exit 1;	3425	exit 1;
2099	}	3426	};
2100		3427
2101	warn "reloaded successfully";	3428	warn "reloaded";
2102	};	3429	};
2103		3430
2104	#############################################################################	3431	our $RELOAD_WATCHER; # used only during reload
2105		3432
2106	unless ($LINK_MAP) {	3433	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	3434	# doing reload synchronously and two reloads happen back-to-back,
		3435	# coro crashes during coro_state_free->destroy here.
2108		3436
2109	$LINK_MAP->width (41);	3437	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	3438	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	3439	after => 0,
		3440	data => WF_AUTOCANCEL,
2119	cb => sub {	3441	cb => sub {
2120	$_[0]->w->cancel;	3442	do_reload_perl;
2121		3443	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	3444	},
2140		3445	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3446	}
2146
2147	register "<global>", __PACKAGE__;
2148		3447
2149	register_command "reload" => sub {	3448	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3449	my ($who, $arg) = @_;
2151		3450
2152	if ($who->flag (FLAG_WIZ)) {	3451	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3452	$who->message ("reloading server.");
		3453	async {
		3454	$Coro::current->{desc} = "perl_reload";
		3455	reload_perl;
		3456	};
2156	}	3457	}
2157	};	3458	};
2158		3459
2159	unshift @INC, $LIBDIR;	3460	unshift @INC, $LIBDIR;
		3461
		3462	my $bug_warning = 0;
		3463
		3464	our @WAIT_FOR_TICK;
		3465	our @WAIT_FOR_TICK_BEGIN;
		3466
		3467	sub wait_for_tick {
		3468	return unless $TICK_WATCHER->is_active;
		3469	return if $Coro::current == $Coro::main;
		3470
		3471	my $signal = new Coro::Signal;
		3472	push @WAIT_FOR_TICK, $signal;
		3473	$signal->wait;
		3474	}
		3475
		3476	sub wait_for_tick_begin {
		3477	return unless $TICK_WATCHER->is_active;
		3478	return if $Coro::current == $Coro::main;
		3479
		3480	my $signal = new Coro::Signal;
		3481	push @WAIT_FOR_TICK_BEGIN, $signal;
		3482	$signal->wait;
		3483	}
2160		3484
2161	$TICK_WATCHER = Event->timer (	3485	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	3486	reentrant => 0,
		3487	parked => 1,
2163	prio => 0,	3488	prio => 0,
2164	at => $NEXT_TICK || $TICK,	3489	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	3490	data => WF_AUTOCANCEL,
2166	cb => sub {	3491	cb => sub {
		3492	if ($Coro::current != $Coro::main) {
		3493	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3494	unless ++$bug_warning > 10;
		3495	return;
		3496	}
		3497
		3498	$NOW = $tick_start = Event::time;
		3499
2167	cf::server_tick; # one server iteration	3500	cf::server_tick; # one server iteration
		3501
2168	$RUNTIME += $TICK;	3502	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3503	$NEXT_TICK += $TICK;
2170		3504
		3505	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3506	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3507	Coro::async_pool {
		3508	$Coro::current->{desc} = "runtime saver";
		3509	write_runtime
		3510	or warn "ERROR: unable to write runtime file: $!";
		3511	};
		3512	}
		3513
		3514	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3515	$sig->send;
		3516	}
		3517	while (my $sig = shift @WAIT_FOR_TICK) {
		3518	$sig->send;
		3519	}
		3520
		3521	$NOW = Event::time;
		3522
2171	# if we are delayed by four ticks or more, skip them all	3523	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3524	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		3525
2174	$TICK_WATCHER->at ($NEXT_TICK);	3526	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	3527	$TICK_WATCHER->start;
		3528
		3529	$LOAD = ($NOW - $tick_start) / $TICK;
		3530	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3531
		3532	_post_tick;
2176	},	3533	},
2177	);	3534	);
2178		3535
		3536	{
		3537	BDB::min_parallel 8;
2179	IO::AIO::max_poll_time $TICK * 0.2;	3538	BDB::max_poll_time $TICK * 0.1;
2180		3539	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	3540	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	3541	fd => BDB::poll_fileno,
2183	poll => 'r',	3542	poll => 'r',
2184	prio => 5,	3543	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	3544	data => WF_AUTOCANCEL,
		3545	cb => \&BDB::poll_cb,
		3546	);
		3547
		3548	BDB::set_sync_prepare {
		3549	my $status;
		3550	my $current = $Coro::current;
		3551	(
		3552	sub {
		3553	$status = $!;
		3554	$current->ready; undef $current;
		3555	},
		3556	sub {
		3557	Coro::schedule while defined $current;
		3558	$! = $status;
		3559	},
		3560	)
		3561	};
		3562
		3563	unless ($DB_ENV) {
		3564	$DB_ENV = BDB::db_env_create;
		3565	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3566	| BDB::LOG_AUTOREMOVE, 1);
		3567	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3568	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3569
		3570	cf::sync_job {
		3571	eval {
		3572	BDB::db_env_open
		3573	$DB_ENV,
		3574	$BDBDIR,
		3575	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3576	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3577	0666;
		3578
		3579	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3580	};
		3581
		3582	cf::cleanup "db_env_open(db): $@" if $@;
		3583	};
		3584	}
		3585
		3586	$BDB_DEADLOCK_WATCHER = Event->timer (
2191	after => 0,	3587	after => 3,
2192	interval => 10,	3588	interval => 1,
		3589	hard => 1,
		3590	prio => 0,
		3591	data => WF_AUTOCANCEL,
2193	cb => sub {	3592	cb => sub {
2194	(Coro::unblock_sub {	3593	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2195	write_runtime	3594	},
2196	or warn "ERROR: unable to write runtime file: $!";	3595	);
		3596	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3597	after => 11,
		3598	interval => 60,
		3599	hard => 1,
		3600	prio => 0,
		3601	data => WF_AUTOCANCEL,
		3602	cb => sub {
		3603	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3604	},
		3605	);
		3606	$BDB_TRICKLE_WATCHER = Event->timer (
		3607	after => 5,
		3608	interval => 10,
		3609	hard => 1,
		3610	prio => 0,
		3611	data => WF_AUTOCANCEL,
		3612	cb => sub {
		3613	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3614	},
		3615	);
		3616	}
		3617
		3618	{
		3619	IO::AIO::min_parallel 8;
		3620
		3621	undef $Coro::AIO::WATCHER;
		3622	IO::AIO::max_poll_time $TICK * 0.1;
		3623	$AIO_POLL_WATCHER = Event->io (
		3624	reentrant => 0,
		3625	data => WF_AUTOCANCEL,
		3626	fd => IO::AIO::poll_fileno,
		3627	poll => 'r',
		3628	prio => 0,
		3629	cb => \&IO::AIO::poll_cb,
		3630	);
		3631	}
		3632
		3633	my $_log_backtrace;
		3634
		3635	sub _log_backtrace {
		3636	my ($msg, @addr) = @_;
		3637
		3638	$msg =~ s/\n//;
		3639
		3640	# limit the # of concurrent backtraces
		3641	if ($_log_backtrace < 2) {
		3642	++$_log_backtrace;
		3643	async {
		3644	$Coro::current->{desc} = "abt $msg";
		3645
		3646	my @bt = fork_call {
		3647	@addr = map { sprintf "%x", $_ } @addr;
		3648	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3649	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3650	or die "addr2line: $!";
		3651
		3652	my @funcs;
		3653	my @res = <$fh>;
		3654	chomp for @res;
		3655	while (@res) {
		3656	my ($func, $line) = splice @res, 0, 2, ();
		3657	push @funcs, "[$func] $line";
		3658	}
		3659
		3660	@funcs
		3661	};
		3662
		3663	LOG llevInfo, "[ABT] $msg\n";
		3664	LOG llevInfo, "[ABT] $_\n" for @bt;
		3665	--$_log_backtrace;
2197	})->();	3666	};
		3667	} else {
		3668	LOG llevInfo, "[ABT] $msg\n";
		3669	LOG llevInfo, "[ABT] [suppressed]\n";
2198	},	3670	}
2199	);	3671	}
		3672
		3673	# load additional modules
		3674	use cf::pod;
2200		3675
2201	END { cf::emergency_save }	3676	END { cf::emergency_save }
2202		3677
2203	1	3678	1
2204		3679

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